Skip to main content

Home/ Dr. Goodyear/ Group items tagged 2:16

Rss Feed Group items tagged

Filter: All | Bookmarks | Topics Simple Middle
Nathan Goodyear

Circulating 2-hydroxy and 16-α hydroxy estrone levels and risk of breast canc... - 1 views

www.ncbi.nlm.nih.gov/...PMC2562592

estrogen metabolism menopause post-menopause post menopause estrogen metabolite 2-OH-estrone 16-alpha-OH-estrone 2:16alpha-OH estrone breast cancer risk hormone hormones

shared by Nathan Goodyear on 21 Aug 14 - No Cached
  • 2-OH estrogens bind to the estrogen receptor (ER) with affinity equivalent to or greater than estradiol
  • previous prospective studies have not observed any significant associations with either 2-OH or 16α-OH estrone or the ratio of the two metabolites and breast cancer risk overall.
    • Nathan Goodyear
      Nathan Goodyear on 08 Oct 15
       
      whether that risk is increased or decreased
  • it has been hypothesized that metabolism favoring the 2-OH over the 16α-OH pathway may be inversely associated with breast cancer risk (28).
  • ...24 more annotations...
  • they may act as only weak mitogens (14, 15), or as inhibitors of proliferation
  • While 16α-OH estrone binds to the ER with lower affinity than estradiol, it binds covalently (18-20) and once bound, fails to down-regulate the receptor (21). Thus, 16α-OH estrone stimulates cell proliferation in a manner comparable to estradiol in ER+ breast cancer cell lines
  • No significant associations have been observed between 2-OH estrone and breast cancer risk
  • In this large prospective study of 2-OH and 16α-OH estrone metabolites and breast cancer risk, we did not observe any significant associations overall with either individual metabolite or with the ratio of the two metabolites
  • our results do not support the hypothesis that metabolism favoring the 2-OH estrone pathway is more beneficial to breast cancer risk than that favoring the 16α-OH estrone pathway
  • To date, several epidemiologic studies have examined the association between the 2-OH and 16α-OH estrogen metabolites and breast cancer risk with inconclusive results.
  • circulating estrogen levels have been associated more strongly with ER+/PR+ tumors than with ER-/PR- tumors
  • we observed positive associations with 2-OH estrone and the 2:16α-OH estrone ratio among women with lower BMI and women with ER-/PR-tumors,
  • we observed significant positive associations of both 2-OH estrone and the 2:16α-OH estrone ratio with ER-/PR-tumors
  • Three (30, 32, 33) of four (30-33) studies observed RRs above 1 for the association between 16α-OH estrone and breast cancer risk (range of RRs=1.23-2.47); none of the point estimates was statistically significant though one trend was suggestive
  • we observed a suggestive inverse association with 16α-OH estrone and a significant positive association with the 2:16α-OH estrone ratio among lean women, suggesting possible associations in a low estrogen environment.
  • No significant associations have been observed between 2-OH estrone, 16α-OH estrone, or the 2:16α-OH estrone ratio and breast cancer risk and the direction of the estimates is not consistent across studies.
    • Nathan Goodyear
      Nathan Goodyear on 08 Oct 15
       
      better worded is no consistent, significant associations.   There are some studies that point to the 16 catecholestrogen and increased cancer risk; limited studies show negative effects of 2 catecholestrogens on cancer risk and prospective studies available pretty much dispel the idea that the 2:16 ratio has an risk predictability.
  • based on animal studies, 2-OH estrone and the 2:16α-OH estrone ratio have been hypothesized to be inversely associated with breast cancer risk
  • 16α-OH estrone increases unscheduled DNA synthesis in mouse mammary cells (27) and hence also may be genotoxic
  • Although 2-OH estrogens are capable of redox cycling, the semiquinones and quinones (i.e., the oxidized forms) form stable DNA adducts that are reversible without DNA destruction
  • In our population of PMH nonusers, we observed no associations with ER+/PR+ tumors, but significant positive associations with 2-OH estrone and the 2:16α-OH estrone ratio among women with ER-/PR- tumors
    • Nathan Goodyear
      Nathan Goodyear on 08 Oct 15
       
      one of the few studies to find this association between 2 catecholestrogens and the 2:16 ratio and ER-/PR-tumors
  • Animal and in vitro studies have shown that hydroxy estrogens can induce DNA damage either directly, through the formation of quinones and DNA adducts, or indirectly, through redox cycling and the generation of reactive oxygen species
    • Nathan Goodyear
      Nathan Goodyear on 08 Oct 15
       
      genotoxic via directe DNA adducts and indirectly via ROS; this is in addition to the proliferative effect
  • we observed a significant positive association between the 2:16α-OH estrone ratio and breast cancer risk among lean women
  • No significant associations have been observed with the 2:16α-OH estrone ratio
  • In the Danish study, no associations were observed with either ER+ or ER- tumors among PMH nonusers
  • significant positive associations with 2-OH estrone and the 2:16α-OH estrone ratio were observed among PMH users with ER+, but not ER-, tumors
  • it is possible that the genotoxicity of 2-OH estrone plays a role in hormone receptor negative tumors
  • 4-OH estrogens have a greater estrogenic potential than 2-OH estrogens, given the lower dissociation rate from estrogen receptors compared with estradiol (61), and are potentially more genotoxic since the quinones form unstable adducts, leading to depurination and mutation in vitro and in vivo
  • the balance between the catechol (i.e., 2-OH and 4-OH) and methoxy (i.e., 2-Me and 4-Me) estrogens may impact risk
  • Nathan Goodyear on 21 Aug 14
     
    The risks of estrogen metabolism are not clear cut.  Likely never will be due to the complexity of individual metabolism.  This study found no correlation between 2OH-Estrone and 2OH:16alpha-Estrone and breast cancer risk in ER+/PR+ breast cancer.  Translated: no benefit in breast cancer risk in 2OH-Estrone metabolism or increased 2OH:16alpha estrone metabolism.  There was a positive association between 2OH-Estrone and 2:16alpha-Estrone in women with ER-/PR- tumors and low BMI.
  • anonymous on 28 Oct 15
     
    pakistani sexy girls escort in dubai // russian sexy girsl escort in dubai // sexy girls in dubai // sexy girls escort in dubai //
Nathan Goodyear

Urinary estrogen metabolites in women at high risk for breast cancer - 0 views

carcin.oxfordjournals.org/...1532.full

breast cancer CA estrogen metabolism 2:16 OHE 2-OH-estrone 16-alpha-OH-estrone

shared by Nathan Goodyear on 10 May 12 - No Cached
  • obesity has also been linked to preferential estrogen metabolism via the 16-alpha-hydroxylation pathway; thus, a prediction of the mechanism by which obesity could increase breast cancer risk would be through a lowering of the 2:16 ratio in favor of the 16 pathway
  • increased BMI was associated with a lower 2:16 OHE ratio
  • Our data show a significant association between alcohol use, defined as at least one drink per day or an average of seven per week, and 2:16 OHE ratio
  • ...10 more annotations...
  • An alcohol-induced rise in estrogens as a consequence of alcohol catabolism in the liver has been reported
  • The only study that looked at the association between alcohol and wine consumption in healthy women did not report a clear association
  • smoking has been reported to increase induction of the 2-hydroxylation metabolic pathway (24). However, the few epidemiological studies conducted on healthy women showed no difference in estrogen metabolites with smoking status (22) or smoking dose (20), in line with our findings.
  • Family history of a first-degree family member with breast cancer confers a 2- to 4-fold risk of developing breast cancer
  • 16% of breast cancers are due to unidentified hereditary factors
  • Estrogen metabolism occurs through enzymes whose activity is determined by the presence of specific genetic polymorphisms, thus can be defined as unique to each individual.
  • the metabolism is also influenced by a number of environmental factors, which change over a lifetime
  • significantly lower 2:16 OHE ratio in women who have known breast cancer risk factors compared with healthy women
  • There was an additional significant association specifically with BMI and alcohol use, which also supports the evidence that these factors affect estrogen metabolism
  • Profiling estrogen metabolites may identify women who are more likely to develop breast cancer within a population of women with known risk factors
  • Nathan Goodyear on 10 May 12
     
    urinary estrogen metabolites shown to provide insight into breast cancer risk.  This study suggested that a low 2:16 OHE ratio increase breast cancer risk.
wheelchairindia9

Handicapped Two Wheeler - 0 views

www.wheelchairindia.com/...SIDE-WHEEL-ATTACHMENT

Innovative Scooter For The Benefit Of Disabled Scooter For Handicapped Person 2 Piece Tyre Size Handicapped Two Wheeler power-operated vehicle delta-style steering arrangement

shared by wheelchairindia9 on 24 Apr 15 - No Cached
  • wheelchairindia9 on 24 Apr 15
     
    Heavy duty mobility scooters are strong enough to accommodate almost any user. When compared with lighter units, mobility scooters models tend to feature bigger motors, wider bases, and larger tires. While a lighter model may be difficult to maneuver through rougher landscapes, mobility scooter is designed to tackle even the most challenging terrain.An excellent selection of scooters for sale. An extensive scooter accessories section, where find plenty of customization options to help ensure that the model select is a perfect fit. Side Wheels For Hero Pleasure: Side Wheel Attachment for Hero Pleasure or Side Wheels For Hero Pleasure or Three wheeler Hero Pleasure for handicapped is product, designed for use with bikes meant for the open road. Instead of shifting with a foot, a rider can drive easily their bike on road using his or her hand. This piece of equipment has been tested at well-known motorcycle tracks. This provides assembly and installation for all products at all facilities. Side Wheel Attachment For Hero Pleasure to fit the widest array of motorcycles and all-terrain vehicles possible. Side Wheel Attachment For Hero Pleasure Measurements: Frame : 38 mm 16 Gauge CR Pipe With Powder Coated Wheel Hub : Alloys Molded 2 Piece Tyre Size : 3.50 x 10 Inches 2 Piece Tube Size : 3.50 x 10 inches 2 Piece Shocks Up Heavy Duty 4 Piece ball baring 2 Piece pin bush 2 Piece mudguard chrome plated 2 Piece Disk with 4 Hole Wheel Type: Alloy Wheel Width: 40" to 48" inch Carrying Capacity: 100 -150 kg Side Wheels For Hero Pleasure Features: Independent Mobility Minimal Cost Heavy Duty International quality standards Comfort High level of performance Carrying Capacity: 100 -150 kg Sturdy design Provides excellent balance Provides excellent support High durability Side Wheels For CD Deluxe: Side Wheel Attachment for CD Deluxe or Side Wheels For CD Deluxe or Three wheeler CD Deluxe for handicapped is product, designed for u
wheelchairindia9

Ergo Lite 2 - 0 views

www.wheelchairindia.com/...KM-2512-Ergo-Lite-2-Wheelchair

Foldable Push Bars For Ergonomic Wheelchair Karma Ergo Wheelchair Ergo Lite 2 Karma KM 2512 Ergo Lite 2 Wheelchair Karma S Ergo 305 Wheelchair Ergonomic Wheelchair Ergo Lite 2 Wheelchair

shared by wheelchairindia9 on 20 Feb 16 - No Cached
  • wheelchairindia9 on 20 Feb 16
     
    Lightweight Ergonomic Wheelchair is designed to cradle patients in comfort while reducing risk of pressure sores, relieving pressure, dispersing weight evenly and improving stability. The Ergo Lite Wheelchair is easy to lift and its small size makes it ideal for travel. Weighing only 19.8 lbs., the chair is easy to store and transport. The chair folds down the middle like a standard wheelchair and the backrest also folds down to make the wheelchair even more compact. The Karman wheelchairs are exceptional in both their function and style. With comfort built right into the frame of a wheelchair eliminating the need for a "thick cushion" to add comfort, S-Shape seat allows the wheelchair to be "ergonomically correct" putting into a seating position and comfort conforming to natural body's curves. These chairs are built for comfort and quality to stand the test of time. Karma S Ergo 305 Wheelchair: The Karma S Ergo 305 Wheelchair weighs only 13 kg, has a 115 kg weight capacity and is available in 16" and 18" seat widths. With wheels and footrest removed this chair weighs 10 kg. Karma S Ergo 305 Wheelchair Features: Only 10 kg. (w/ wheels & footrests removed) Folding backrest, for transporting chair in car, bus, trips, ect. Swing in & away footrest for maximum safety while entering or exiting the chair 24" Quick Release rear spoke/polyurethane/high profile/flat free wheels & 7×1" front casters Seat Width: 18"x17" OR 16" x 17" Upholstery: Silver/Black mesh AEIGIS back and seat cushion Height Adjustable Armrest Factory Height Settings should be selected at time of purchase for convenience High strength, weighs only 13 kg. (w/o footrests) Anti-Bacterial Upholstery/Cushion Flip back armrests w/ wider contoured arm pads for maximum comfort "Tube-in Center" foot-plate, assures better side leg support Frame Color: Pearl Silver & Rose Red Axle Adjustable Seat Height ( 18", 19", 20") Weight Capacity: 115 kg. Karma KM 2512 Ergo Lite 2 Wheel
Nathan Goodyear

Postmenopausal circulating levels of 2- and 16α-hydroxyestrone and risk of en... - 0 views

www.ncbi.nlm.nih.gov/...PMC3241553

estrogen metabolism 2-hydroxyestrone 4-hydroxyestrone estrogen metabolites cancer uterine cancer endometrial cancer hormones 2:16alpha-OHE1 2:16

shared by Nathan Goodyear on 07 Oct 15 - No Cached
  • our results do not support the hypothesis that greater metabolism of oestrogen via the 2-OH pathway, relative to the 16α-OH pathway, protects against endometrial cancer. Indeed our results are more suggestive of an increase in risk, rather than a decrease, with higher levels of 2-OHE1
  • women with a higher 2-OHE1 : 16α-OHE1 ratio did not have a decreased risk of endometrial cancer as compared with women with a lower ratio
  • The findings from this first prospective epidemiological study of oestrogen metabolites and endometrial cancer are in line with results from prospective studies on breast cancer, another oestrogen-related cancer. None of the seven studies on breast cancer reported significant associations overall
  • ...4 more annotations...
  • On the whole, prospective epidemiological data do not support the hypothesis that the 2-hydroxyestrogen pathway is protective, and the 16α-hydroxyestrogen pathway harmful, in hormone-dependent cancers
  • Both 2- and 4-hydroxyestrogens are catecholestrogens, and it has been suggested that catecholestrogens increase risk of oestrogen-mediated cancers through direct genotoxic effects, rather than through stimulation of cell proliferation via binding to oestrogen receptors
  • the evidence is stronger for 4-hydroxyestrogens than for 2-hydroxyestrogens
  • a significant increase in risk of breast cancer with levels of 2-OHE1 has also been reported previously, although it was limited to hormone receptor-negative tumours
  • Nathan Goodyear on 07 Oct 15
     
    2:16 hydroxyestrone ratio not associated with uterine cancer risk.
Nathan Goodyear

Hormone Therapy, Estrogen Metabolism, and Risk of Breast Cancer in the Women's Health I... - 0 views

www.ncbi.nlm.nih.gov/...PMC3493689

breast cancer estrogen metabolites 2-OH-estrone 2:16 cancer hormones estrogen

shared by Nathan Goodyear on 11 Sep 15 - No Cached
  • These results demonstrate that although 16α-OHE1 was increased more by E+P than by E-alone, the increase in the 2:16 ratio was similar for both HT regimens, due to ~4-fold greater increase in 2OHE-1 than 16α-OHE1 for both HT regimens
  • baseline and 1 year change in 16α-OHE1 showed little relationship to incident breast cancer
  • higher baseline 2-OHE1 and the 2:16 ratio were modestly associated with higher odds of incident breast cancer, but larger 1 year increase in 2-OHE-1 and the 2:16 ratio were also weakly associated with lower odds of breast cancer
  • Nathan Goodyear on 11 Sep 15
     
    Good review of the data from the WHI-HT on estrogen metabolites and breast cancer risk.  Increased 2-OHestrone and 2:16 ratio without statistical significance reached.
wheelchairindia9

J6 Power Wheelchair - 0 views

www.wheelchairindia.com/...J6-Power-Wheelchair

J6 Power Wheelchair Quantum Wheelchair Quantum Power Chairs J6 Power Chair Pride J6 Wheelchair Quantum Motorized Wheelchairs J6 Power Wheelchair Price J6 Wheelchair

shared by wheelchairindia9 on 02 Mar 16 - No Cached
  • wheelchairindia9 on 02 Mar 16
     
    J6 Power Wheelchair The compact J6 is the ultimate choice for users who demand the superb stability of Mid-Wheel 6 design and tight-quarter maneuverability. Highly adaptable, the J6 accepts a wide range of seating and electronics options while its powerful drive train delivers high-performance torque. J6 Power Wheelchair Features: Mid-Wheel 6 allows six wheels on the ground for maximum stability. Compatible with TRU-Balance Tilt. OMNI-Casters (nylon, spherical-shaped casters) on front and rear prevent wheel hang-ups. Side-mounted, easily accessible freewheel levers. ATX Suspension (Active-Trac with extra stability) incorporates front OMNI-Casters for enhanced. Performance over more varied terrain. Easy front access to batteries. J6 Power Wheelchair Specifications: Drive Wheels: 10" Solid Optional: 10" Pneumatic Caster Wheels Front: 5" Solid Rear: 6" Solid Anti-Tip Wheels N/A Maximum Speed^4/^: Up to 4 mph Ground Clearance: 2.5" (frame) Turning Radius^5/^: 22" Overall Length: 34.74" without foot riggings Base Width: 23.19" Seating Sizes: TRU-Balance® 2 Synergy/Static: W: 10-20" D: 10-20" Power Tilt: W: 14-20" D: 14-20" Lift & Tilt: N/A Seat-to-Floor Heights: TRU-Balance® 2 Synergy/Static8: 16.5" - 17.5" Power Tilt8: 16.875" Lift & Tilt8: N/A Manual Tilt/Recline^10/^: Yes Battery Size^6/^: U-1 Battery Weight^14/^: 23.4 lbs. Available Electronics^12/^: 70A Q-Logic 2 NE 70A Q-Logic 2 NE+ 70A Q-Logic 2 EX Battery Charger 5A Off-board Motor Packages 2-Pole 4 mph Weight Capacity^7/^: 300 lbs.9 Base Weight: 100.2 lbs
wheelchairindia9

Karma S-Ergo 105 Manual Wheelchair - 0 views

disabilityproduct.in/...Karma-S-Ergo-105-Wheelchair

Ergonomic Wheelchair Provides Safe Movement For People brakes at the pushing handles Karma S-Ergo 105 Manual Wheelchair maximum strength and durability Karma Ergo 125 Transit Wheelchair

shared by wheelchairindia9 on 03 Sep 15 - No Cached
  • wheelchairindia9 on 03 Sep 15
     
    Ergonomic chairs are designed to confirm to a person's physical dimensions, allowing them to sit naturally and comfortably for long periods of time, while reducing the risk of pressure ulcers. Ergonomic system (Intelligent s-shaped ergonomic seating) provides efficient pressure relief by spreading weight over a greater area, at the same time provides stabilization and reduced sliding. With their lightweight frames and seats designed to reduce or prevent pressure points, ergonomic wheelchairs provide a comfortable option for mobility impaired users who have the upper body strength to propel themselves, or a caregiver strong enough to do so. Karma Ergo Lite 2501 Wheelchair: The extremely lightweight Ergo Lite 2501 Transport Wheelchair weighs only 8.16 kg. and features an ergonomically-designed seat and backrest, making it one of the most comfortable transport chairs on the market. The folding seat and backrest make the S-Ergo ideal for storage or travel, and the built in AEGIS anti-bacterial cushion provides added comfort and support. Despite its light weight, the S-Ergo features a 115 kg. weight capacity along with large, 14" flat-free polyurethane rear tires. Karma Ergo Lite 2501 Wheelchair Features: Lightest transporter on the market! Patented S-Style Ergonomic Seat Frame 6061 T-6 Aircraft-grade Aluminum Only 18 lb . (w/ footrests) Built in Silver Aegis Anti-bacterial Cushion Fixed Armrests w/Concaved Armpads Pocket Behind Backrest & Small Carry Pouch on Each Armrest 6" x 1" Polyurethane Front Casters 16" x 17" or 18" x 17" Seat Width S-Style Ergonomic Seat 14" Rear Polyurethane, High Tread, Flat Free Wheels 3-Stage handle brake: allows light to firm grip for lock Folding Backrest/ Folding Seat for Transporting in Vehicle or Travel Fixed Footrests w/ Extra Wide Footplates Frame Color: Pearl Silver Weight Capacity of 100 kg Ergonomic Transporter w/ handle brakes Karma Ergo Lite 2501 Wheelchair Measurements: Seat Width 16 inch., 18
Nathan Goodyear

Healthcare | Free Full-Text | The Effects of Resistance Training on Physical Function a... - 0 views

www.mdpi.com/695

breast cancer cancer resistance training exercise

shared by Nathan Goodyear on 13 Oct 15 - No Cached
  • Nathan Goodyear on 13 Oct 15
     
    Breast cancer survivors (BCS) exhibit decreased physical function and quality of life (QOL) following cancer treatments. Resistance training (RT) may elicit positive changes in physical and mental well-being. This study assessed 27 BCS, pre-and post-intervention (six months) on the following variables: muscular strength (via one repetition maximum (1RM) of chest press and leg extension), physical function (via the Continuous Scale-Physical Functional Performance test) and QOL (via the Short Form-36 survey). RT consisted of two days/week of ten exercises including two sets of 8-12 repetitions at 52%-69% of their 1RM. A repeated measures analysis of variance revealed BCS significantly (p < 0.05) increased upper (71 ± 22 to 89 ± 22 kg) and lower body (74 ± 18 to 93 ± 24 kg) strength, total physical function (65.5 ± 12.1 to 73.6 ± 12.2 units) and the subcomponents of physical function: upper body strength (63.5 ± 16.3 to 71.2 ± 16.8 units), lower body strength (58.5 ± 14.9 to 68.6 ± 16.3 units), balance and coordination (66.5 ± 12.2 to 74.6 ± 11.6 units), and endurance (67.2 ± 12.0 to 75.0 ± 11.6 units). No changes were observed over time for subjective measures of physical function and QOL. Results showed RT could be an effective means to improve objective physical function in BCS. Further research is needed to clarify the effects of RT on subjective physical function and QOL.
Nathan Goodyear

High-Dose Vitamin C for Cancer Therapy - PMC - 0 views

www.ncbi.nlm.nih.gov/...PMC9231292

vitamin C cancer

shared by Nathan Goodyear on 27 Jul 22 - No Cached
  • diabetes [8], atherosclerosis [9], the common cold [10], cataracts [11], glaucoma [12], macular degeneration [13], stroke [14], heart disease [15], COVID-19 [16], and cancer.
  • 1–5% of the Vit-C inside the human cells
  • interaction between Fe(II) and H2O2 produces OH− through the Fenton reaction
  • ...35 more annotations...
  • metabolic activity, oxygen transport, and DNA synthesis
  • Iron is found in the human body in the form of haemoglobin in red blood cells and growing erythroid cells.
  • macrophages contain considerable quantities of iron
  • iron is taken up by the majority of cells in the form of a transferrin (Tf)-Fe(III) complex that binds to the cell surface receptor transferrin receptor 1 (TfR1)
  • excess iron is retained in the liver cells
  • the endosomal six transmembrane epithelial antigen of the prostate 3 (STEAP3) reduces Fe(III) (ferric ion) to Fe(II) (ferrous ion), which is subsequently transferred across the endosomal membrane by divalent metal transporter 1 (DMT1)
  • labile iron pool (LIP)
  • LIP is toxic to the cells owing to the production of massive amounts of ROS.
  • DHA is quickly converted to Vit-C within the cell, by interacting with reduced glutathione (GSH) [45,46,47]. NADPH then recycles the oxidized glutathione (glutathione disulfide (GSSG)) and converts it back into GSH
  • Fe(II) catalyzes the formation of OH• and OH− during the interaction between H2O2 and O2•− (Haber–Weiss reaction)
  • Ascorbate can efficiently reduce free iron, thus recycling the cellular Fe(II)/Fe(III) to produce more OH• from H2O2 than can be generated during the Fenton reaction, which ultimately leads to lipid, protein, and DNA oxidation
  • Vit-C-stimulated iron absorption
  • reduce cellular iron efflux
  • high-dose Vit-C may elevate cellular LIP concentrations
  • ascorbate enhanced cancer cell LIP specifically by generating H2O2
  • Vit-C produces H2O2 extracellularly, which in turn inhibits tumor cells immediately
  • tumor cells have a need for readily available Fe(II) to survive and proliferate.
  • Tf has been recognized to sequester most labile Fe(II) in vivo
  • Asc•− and H2O2 were generated in vivo upon i.v Vit-C administration of around 0.5 g/kg of body weight and that the generation was Vit-C-dose reliant
  • free irons, especially Fe(II), increase Vit-C autoxidation, leading to H2O2 production
  • iron metabolism is altered in malignancies
  • increase in the expression of various iron-intake pathways or the downregulation of iron exporter proteins and storage pathways
  • Fe(II) ion in breast cancer cells is almost double that in normal breast tissues
  • macrophages in the cancer microenvironment have been revealed to increase iron shedding
  • Advanced breast tumor patients had substantially greater Fe(II) levels in their blood than the control groups without the disease
  • increased the amount of LIP inside the cells through transferrin receptor (TfR)
  • Warburg effect, or metabolic reprogramming,
  • Warburg effect is aided by KRAS or BRAF mutations
  • Vit-C is supplied, it oxidizes to DHA, and then is readily transported by GLUT-1 in mutant cells of KRAS or BRAF competing with glucose [46]. DHA is quickly converted into ascorbate inside the cell by NADPH and GSH [46,107]. This decrease reduces the concentration of cytosolic antioxidants and raises the intracellular ROS amounts
  • increased ROS inactivates glyceraldehyde 3-phosphate dehydrogenase (GAPDH)
  • ROS activates poly (ADP-ribose) polymerase (PARP), which depletes NAD+ (a critical co-factor of GAPDH); thus, further reducing the GAPDH associated with a multifaceted metabolic rewiring
  • Hindering GAPDH can result in an “energy crisis”, due to the decrease in ATP production
  • high-dose Vit-C recruited metabolites and increased the enzymatic activity in the pentose phosphate pathway (PPP), blocked the tri-carboxylic acid (TCA) cycle, and increased oxygen uptake, disrupting the intracellular metabolic balance and resulting in irreversible cell death, due to an energy crisis
  • mega-dose Vit-C influences energy metabolism by producing tremendous amounts of H2O2
  • Due to its great volatility at neutral pH [76], bolus therapy with mega-dose DHA has only transitory effects on tumor cells, both in vitro and in vivo.
wheelchairindia9

Travel Wheelchair Add Additional Comfort - 0 views

onlywheelchair.blogspot.in/...ir-add-additional-comfort.html

Travel Wheelchair Add Additional Comfort Wheelchair Lightweight Wheelchair Travel Karma Travel Wheelchair KM TV 20.2 Transport wheelchair Lightweight Wheelchair KM TV 20.2 Lightweight Transport wheelchair

shared by wheelchairindia9 on 02 Dec 15 - No Cached
  • wheelchairindia9 on 02 Dec 15
     
    Lightweight Transport wheelchair is one of the the lightest transport chairs on the market, weighing in at only 19 lbs! With four great colors to choose from, it can be transported in style. A seat belt and swing-away removable footrests are standard and make it easy to get in and out of this chair. A fold-down back allows for easier storage and transport and padded armrests add additional comfort. It is made out of a lightweight and durable powder coated aluminum frame that is available in either red or blue. It is available in a 19" wide seat with permanent full-length arms and swing-away detachable footrests. The chair also has padded armrests and a seatbelt for safety purposes. Karma Travel Wheelchair KM TV 20.2 Karma Travel Wheelchair KM TV 20.2 - 606 T-6 aircraft-grade aluminum-alloy frame provides incredible strength. Easy-to-fold in three seconds. Karma Travel Wheelchair KM TV 20.2 Features Type: Travel Wheelchair T-6 aircraft-grade aluminum Secure brake improve safety Padded flip back armrest PU front caster & rear wheel Karma Travel Wheelchair KM TV 20.2 Measurements Weight: 8.9kg Seat width: 39.5cm Tyre: PU front casters and rear wheels Capacity: 100kg Folded size: (L/W/H): 610mm x 350mm x710mm. Ultra Lightweight Wheelchair Its compact design and feather light weight makes it suitable for people on the go. Ultra Lightweight Wheelchair Specifications Frame Style : Foldable Frame Material : Aluminium (Light weight) Rear wheel to wheel width in open position (inches) : 20" Handle to Handle : 16" Seat Width (inches): 13" Rear Wheel Size: 7" Front Wheel Size: 5" Seat to floor height (inches): 19" Seat Depth (inches): 13" Back height (inches): 16" Total height (inches): 35" Max User Weight Capacity (kgs): 80 k.g. Net Weight (kgs): 8.5 k.g. Upholstery: Cloth look like, washable Armrest: Flip up, for easy transfer to bed Legrest: Flip up footplate Wheel Quality: Tear resistant polyurethane wheels Rear Wheel Lo
wheelchairindia9

Tricycle Manufacturers - 0 views

www.wheelchairindia.com/...TRICYCLE

Comfortable Ergonomics For Wheelchair Users lightweight frames and seats Tricycle Manufacturers increase strength and coordination durability and safety Karman Ergonomic Wheelchair upper body strength

shared by wheelchairindia9 on 13 May 15 - No Cached
  • wheelchairindia9 on 13 May 15
     
    Tricycles make cycling accessible to all, whatever personal challenges. There are a wide range of disability cycles that suit people with a variety of learning and physical disabilities, as well as health issues. Tricycles have 3 wheels, which means that the rider does not need to be able to balance. This is particularly useful for people with learning disabilities, such as Dyspraxia, and those recovering from illnesses. Tricycles can be fitted with foot plates to make it easier for riders to rotate the pedals and they come in upright or recumbent (horizontal sitting position). For adults and children with balance issues, stabilisers can also be fitted to standard bikes, which makes them more like tricycles. Tricycles come in a variety of accessible styles for people of all abilities including many persons with spinal cord injury disabilities. Tricycles is a great upper body workout and can provide a great sense of freedom for persons with disabilities. While the high cost prevents many from enjoying Tricycles they are steadily growing in popularity. Tricycle Deluxe Double Hand Drive: Frame : Made by E.R.W. Tubes 38.0 mm-16 G. 25.4 mm & 22.22 mm- 18 G. Seat & Back: M S, C.R.C. Sheet. Seat Size 18"x 16" Wheel Size: Wheel Diameter 24"x 1 1/2" Tyre and Tube Standard Company. Parts: Standard Quality. Color: Black Painted. Brake: Front Wheel liver System Drive: Rear Wheel Right Side. Hand powered cycles work along the same principle as standard cycles. The pedals are replaced with handles that also steer, and riders use their arms to push the handles around to drive the chain and wheels. Most hand cycles have 3 wheels, although some have 4 wheels. 4-wheel cycles may have power assistance instead of the rider turning handles,or they may be built for going down hill, in which case gravity powers the bike. As with tricycles, hand cycles can have upright seats or low down recumbent seats. Specialist 'clip on' cycles are also available that can be attached
wheelchairindia9

Improve Safety By Transport wheelchairs - 0 views

onlywheelchair.blogspot.in/...-by-transport-wheelchairs.html

Improve Safety By Transport wheelchairs Transport Chairs Lightweight Folding Wheelchairs Karma Travel Wheelchair KM TV 20.2 Ultra Lightweight Wheelchair Lightweight Wheelchair Transport wheelchairs

shared by wheelchairindia9 on 24 Nov 15 - No Cached
  • wheelchairindia9 on 24 Nov 15
     
    Walking disabled people are more fortunate nowadays. While in the past they always have felt incapacitated and immobile, nowadays, they are provided with more and better means to roam and move around. With the development and heightened popularity and usage of wheelchairs, such handicapped people are given more advantage and privilege. The emergence of transport wheelchairs have significantly helped improve the way people make use of wheelchairs. Transport wheelchairs are machines or equipment that facilitate for mobility and movement of wheelchair confined people at public places. While it is true that simple wheelchairs can do the trick, transport wheelchairs are specifically designed and manufactured to facilitate better roaming and mobility at malls, restaurants and parks where people usually converge to relax. Transport wheelchairs provide many advantages: Weight: As the name implies, they are easy to transport because they typically weigh around 15 to 20 pounds, which is much less than a manual wheelchair. Storage: They are easier to store than traditional manual and electric wheelchairs. Most are small enough to fit into the trunk of a compact car. Karma Travel Wheelchair KM TV 20.2: Karma Travel Wheelchair KM TV 20.2 - 606 T-6 aircraft-grade aluminum-alloy frame provides incredible strength. Easy-to-fold in three seconds. Karma Travel Wheelchair KM TV 20.2 Features: Type: Travel Wheelchair T-6 aircraft-grade aluminum Secure brake improve safety Padded flip back armrest PU front caster & rear wheel Karma Travel Wheelchair KM TV 20.2 Measurements: Weight: 8.9kg Seat width: 39.5cm Tyre: PU front casters and rear wheels Capacity: 100kg Folded size: (L/W/H): 610mm x 350mm x710mm. Wheelchair provides comfort and mobility in an economical package. It comes standard with padded nylon upholstery and one-piece armrests that offer a cushioned feel with minimal maintenance. Combined with its stylish silver vein frame and matching fr
wheelchairindia9

Comfort And Ease Lightweight Wheelchair - 0 views

onlywheelchair.blogspot.in/...se-lightweight-wheelchair.html

Comfort And Ease Lightweight Wheelchair Transport Chair Light Wheelchairs transport wheelchair Ultra Lightweight Wheelchair Lightweight Wheelchair Travel Wheelchair Karma Travel Wheelchair KM TV 20.2

shared by wheelchairindia9 on 07 Dec 15 - No Cached
  • wheelchairindia9 on 07 Dec 15
     
    Transport Chair weighs only 14.8 lbs - almost 25% lighter than standard folding transport chairs. The Chair also features breathable nylon upholstery, an attractive colored frame and comfortable, "restaurant-style" arms - so it can pull up to tables and eat comfortably. The chair not only has a fold-down back but is foldable for length-wise for easy transport. The backside of the chair contains a key ring and multiple pockets. Transport chairs make it easier for the loved ones and caregivers to help to get around in comfort and ease. Compared to a standard wheelchair, a transport chair requires a caregiver to push the chair. A transport wheelchair is much lighter than a wheelchair; plus, it is more compact which makes getting around town easier. This chair comes equipped with loop-lock hand brakes that are easy to operate and ideal for locking the rear wheels during transfers. It also has a seatbelt which keeps the passenger securely in place and it is compact when folded making it easy to lift into a car or carry up the stairs. It is equipped with a seat belt, comfortable nylon upholstery, full length permanent armrest, and detachable footrests. It has a 19 inch wide seat that can provide and a weight capacity of 300 pounds. Karma Travel Wheelchair KM TV 20.2: Karma Travel Wheelchair KM TV 20.2 - 606 T-6 aircraft-grade aluminum-alloy frame provides incredible strength. Easy-to-fold in three seconds. Karma Travel Wheelchair KM TV 20.2 Features: Type: Travel Wheelchair T-6 aircraft-grade aluminum Secure brake improve safety Padded flip back armrest PU front caster & rear wheel Karma Travel Wheelchair KM TV 20.2 Measurements: Weight: 8.9kg Seat width: 39.5cm Tyre: PU front casters and rear wheels Capacity: 100kg Folded size: (L/W/H): 610mm x 350mm x710mm. Ultra Lightweight Wheelchair: Its compact design and feather light weight makes it suitable for people on the go. Ultra Lightweight Wheelchair Specifications: Frame Style : Foldabl
wheelchairindia9

Easy To Fold Ultra Lightweight Wheelchair - 0 views

onlywheelchair.blogspot.in/...to-fold-ultra-lightweight.html

Easy To Fold Ultra Lightweight Wheelchair Travel Wheelchair Transport chairs Lightweight Wheelchair Light weight Wheelchair KM TV 20.2 transport wheelchair Karma Travel Wheelchair

shared by wheelchairindia9 on 17 Dec 15 - No Cached
  • wheelchairindia9 on 17 Dec 15
     
    Transport chairs make it easier for loved ones and caregivers to help get around in comfort and ease. Compared to a standard wheelchair, a transport chair requires a caregiver to push the chair. A transport chair is much lighter than a wheelchair; plus, it is more compact which makes getting around town easier. This chair comes equipped with loop-lock hand brakes that are easy to operate and ideal for locking the rear wheels during transfers. It also has a seatbelt which keeps the passenger securely in place and it is compact when folded making it easy to lift into a car or carry up the stairs. Weighs just 23.5 lbs and is equipped with a seat belt, comfortable nylon upholstery, full length permanent armrest, and detachable footrests. It has a 19 inch wide seat that can provide and a weight capacity of 300 pounds. This wheelchair can be used both indoors and outdoors on forgiving terrain, with a convenient step for the attendant to lift the chair over obstacles. This transport wheelchair gives the freedom to go, with the added convenience of folding up to a manageable size. Karma Travel Wheelchair KM TV 20.2 Karma Travel Wheelchair KM TV 20.2 - 606 T-6 aircraft-grade aluminum-alloy frame provides incredible strength. Easy-to-fold in three seconds. Karma Travel Wheelchair KM TV 20.2 Features Type: Travel Wheelchair T-6 aircraft-grade aluminum Secure brake improve safety Padded flip back armrest PU front caster & rear wheel Karma Travel Wheelchair KM TV 20.2 Measurements Weight: 8.9kg Seat width: 39.5cm Tyre: PU front casters and rear wheels Capacity: 100kg Folded size: (L/W/H): 610mm x 350mm x710mm. Ultra Lightweight Wheelchair Its compact design and feather light weight makes it suitable for people on the go. Ultra Lightweight Wheelchair Specifications Frame Style : Foldable Frame Material : Aluminium (Light weight) Rear wheel to wheel width in open position (inches) : 20" Handle to Handle : 16" Seat Width (inches): 13" Rear Whee
wheelchairindia9

Transport wheelchairs Gives Freedom - 0 views

onlywheelchair.blogspot.in/...wheelchairs-gives-freedom.html

Transport wheelchairs Gives Freedom Transport Wheelchairs Ultralight Wheelchair Ultra Lightweight Wheelchair Lightweight Wheelchair Karma Travel Wheelchair KM TV 20.2 Karma Travel Wheelchair

shared by wheelchairindia9 on 28 Nov 15 - No Cached
  • wheelchairindia9 on 28 Nov 15
     
    Transport wheelchairs or companion chairs are companion wheelchairs where the purpose is for a companion to push the user. Most of our transporters have swing-away leg rests, fixed armrests, and side panels. Instead of the usual 'large back - small front' wheels typical of most wheelchairs, light travel chairs have four small wheels providing much easier maneuverability of the chair. It is easily transportable and comes with a compact carry bag, making it ideal for stowing away in cars, buses, trains, and more. This wheelchair can be used both indoors and outdoors on forgiving terrain, with a convenient step for the attendant to lift the chair over obstacles. This transport chair gives the freedom to go, with the added convenience of folding up to a manageable size. Karma Travel Wheelchair KM TV 20.2 Karma Travel Wheelchair KM TV 20.2 - 606 T-6 aircraft-grade aluminum-alloy frame provides incredible strength. Easy-to-fold in three seconds. Karma Travel Wheelchair KM TV 20.2 Features Type: Travel Wheelchair T-6 aircraft-grade aluminum Secure brake improve safety Padded flip back armrest PU front caster & rear wheel Karma Travel Wheelchair KM TV 20.2 Measurements Weight: 8.9kg Seat width: 39.5cm Tyre: PU front casters and rear wheels Capacity: 100kg Folded size: (L/W/H): 610mm x 350mm x710mm. Ultra Lightweight Wheelchair Its compact design and feather light weight makes it suitable for people on the go. Ultra Lightweight Wheelchair Specifications Frame Style : Foldable Frame Material : Aluminium (Light weight) Rear wheel to wheel width in open position (inches) : 20" Handle to Handle : 16" Seat Width (inches): 13" Rear Wheel Size: 7" Front Wheel Size: 5" Seat to floor height (inches): 19" Seat Depth (inches): 13" Back height (inches): 16" Total height (inches): 35" Max User Weight Capacity (kgs): 80 k.g. Net Weight (kgs): 8.5 k.g. Upholstery: Cloth look like, washable Armrest: Flip up, for easy transfer to bed Le
wheelchairindia9

A Friendly Tricycle For Disabled People - 0 views

www.blogroll.net/article.php

A Friendly Tricycle For Disabled People more stability lower centre of gravity durability and safety dynamic lateral stability better handling and control

shared by wheelchairindia9 on 21 Apr 15 - No Cached
  • wheelchairindia9 on 21 Apr 15
     
    A tricycle for special needs is made so can go along for the ride in wheelchair or sitting in a special seat, both of which are attached right in front of another adult's trike. Tricycles to accommodate a vast array of special needs. Hand-pedaled recumbent tricycles are available for those without the use of their legs. Children, teens and adults with cerebral palsy and similar disorders can select tricycles specially designed to increase strength and coordination. Caregivers to autistic children can ride with their child on tandem special needs tricycles built to accommodate one adult and one child rider. Accessories are also available to convert standard trikes to suit specific needs. The objective of tricycle design is to produce wheelchairs that perform well and can provide appropriate seating and postural support without compromising strength, durability and safety. A Hand Driven Tricycle, abbreviated to trike is a three-wheeled passenger vehicle, usually carrying a single rider. The tricycle consists of a motorbike and an attached passenger sidecar and should not be confused with the tricycle. The trike is a motorized three-wheeled pedicab. Human-powered trikes are powered by pedals or hand cranks. Motorized trikes use motorcycle or scooter,or electric motors. Tricycles tend to be used for commercial purposes: such as "pedicabs" for transport passengers, and freight trikes for making deliveries. In the adult-sized tricycles are used primarily for recreation, shopping, and exercise. Tricycles are favoured by children and senior adults alike for their apparent stability versus a bicycle; but a conventional trike has poor dynamic lateral stability, and the rider must take care when cornering to avoid tipping the trike over. Standard Single Hand Driven Tricycle: Frame : Made by E.R.W. Tubes 22.22 mm- 18 G. Seat & Back : MS, CRC Sheet Seat Size 18"x 16" Wheel Size : Wheel Diameter 28"x 1 1/2" Tyre and Tube Standard Company. Parts : Standard Quality
wheelchairindia9

A Friendly Tricycle For Disabled People - 0 views

www.articlesbase.com/...r-disabled-people-7248754.html

A Friendly Tricycle For Disabled People more stability lower centre of gravity durability and safety dynamic lateral stability better handling and control

shared by wheelchairindia9 on 17 Apr 15 - No Cached
  • wheelchairindia9 on 17 Apr 15
     
    A tricycle for special needs is made so can go along for the ride in wheelchair or sitting in a special seat, both of which are attached right in front of another adult's trike. Tricycles to accommodate a vast array of special needs. Hand-pedaled recumbent tricycles are available for those without the use of their legs. Children, teens and adults with cerebral palsy and similar disorders can select tricycles specially designed to increase strength and coordination. Caregivers to autistic children can ride with their child on tandem special needs tricycles built to accommodate one adult and one child rider. Accessories are also available to convert standard trikes to suit specific needs. The objective of tricycle design is to produce wheelchairs that perform well and can provide appropriate seating and postural support without compromising strength, durability and safety. A Hand Driven Tricycle, abbreviated to trike is a three-wheeled passenger vehicle, usually carrying a single rider. The tricycle consists of a motorbike and an attached passenger sidecar and should not be confused with the tricycle. The trike is a motorized three-wheeled pedicab. Human-powered trikes are powered by pedals or hand cranks. Motorized trikes use motorcycle or scooter,or electric motors. Tricycles tend to be used for commercial purposes: such as "pedicabs" for transport passengers, and freight trikes for making deliveries. In the adult-sized tricycles are used primarily for recreation, shopping, and exercise. Tricycles are favoured by children and senior adults alike for their apparent stability versus a bicycle; but a conventional trike has poor dynamic lateral stability, and the rider must take care when cornering to avoid tipping the trike over. Standard Single Hand Driven Tricycle: Frame : Made by E.R.W. Tubes 22.22 mm- 18 G. Seat & Back : MS, CRC Sheet Seat Size 18"x 16" Wheel Size : Wheel Diameter 28"x 1 1/2" Tyre and Tube Standard Company. Parts : Standard Quality
wheelchairindia9

A Friendly Tricycle For Disabled People - 0 views

www.apsense.com/...cycle-for-disabled-people.html

A Friendly Tricycle For Disabled People more stability lower centre of gravity durability and safety dynamic lateral stability better handling and control

shared by wheelchairindia9 on 17 Apr 15 - No Cached
  • wheelchairindia9 on 17 Apr 15
     
    A tricycle for special needs is made so can go along for the ride in wheelchair or sitting in a special seat, both of which are attached right in front of another adult's trike. Tricycles to accommodate a vast array of special needs. Hand-pedaled recumbent tricycles are available for those without the use of their legs. Children, teens and adults with cerebral palsy and similar disorders can select tricycles specially designed to increase strength and coordination. Caregivers to autistic children can ride with their child on tandem special needs tricycles built to accommodate one adult and one child rider. Accessories are also available to convert standard trikes to suit specific needs. The objective of tricycle design is to produce wheelchairs that perform well and can provide appropriate seating and postural support without compromising strength, durability and safety. A Hand Driven Tricycle, abbreviated to trike is a three-wheeled passenger vehicle, usually carrying a single rider. The tricycle consists of a motorbike and an attached passenger sidecar and should not be confused with the tricycle. The trike is a motorized three-wheeled pedicab. Human-powered trikes are powered by pedals or hand cranks. Motorized trikes use motorcycle or scooter,or electric motors. Tricycles tend to be used for commercial purposes: such as "pedicabs" for transport passengers, and freight trikes for making deliveries. In the adult-sized tricycles are used primarily for recreation, shopping, and exercise. Tricycles are favoured by children and senior adults alike for their apparent stability versus a bicycle; but a conventional trike has poor dynamic lateral stability, and the rider must take care when cornering to avoid tipping the trike over. Standard Single Hand Driven Tricycle: Frame : Made by E.R.W. Tubes 22.22 mm- 18 G. Seat & Back : MS, CRC Sheet Seat Size 18"x 16" Wheel Size : Wheel Diameter 28"x 1 1/2" Tyre and Tube Standard Company. Parts : Standard Quality
wheelchairindia9

A Friendly Tricycle For Disabled People - 0 views

www.articlepoint.org/...cycle-for-disabled-people.aspx

A Friendly Tricycle For Disabled People more stability lower centre of gravity durability and safety dynamic lateral stability better handling and control

shared by wheelchairindia9 on 20 Apr 15 - No Cached
  • wheelchairindia9 on 20 Apr 15
     
    A tricycle for special needs is made so can go along for the ride in wheelchair or sitting in a special seat, both of which are attached right in front of another adult's trike. Tricycles to accommodate a vast array of special needs. Hand-pedaled recumbent tricycles are available for those without the use of their legs. Children, teens and adults with cerebral palsy and similar disorders can select tricycles specially designed to increase strength and coordination. Caregivers to autistic children can ride with their child on tandem special needs tricycles built to accommodate one adult and one child rider. Accessories are also available to convert standard trikes to suit specific needs. The objective of tricycle design is to produce wheelchairs that perform well and can provide appropriate seating and postural support without compromising strength, durability and safety. A Hand Driven Tricycle, abbreviated to trike is a three-wheeled passenger vehicle, usually carrying a single rider. The tricycle consists of a motorbike and an attached passenger sidecar and should not be confused with the tricycle. The trike is a motorized three-wheeled pedicab. Human-powered trikes are powered by pedals or hand cranks. Motorized trikes use motorcycle or scooter,or electric motors. Tricycles tend to be used for commercial purposes: such as "pedicabs" for transport passengers, and freight trikes for making deliveries. In the adult-sized tricycles are used primarily for recreation, shopping, and exercise. Tricycles are favoured by children and senior adults alike for their apparent stability versus a bicycle; but a conventional trike has poor dynamic lateral stability, and the rider must take care when cornering to avoid tipping the trike over. Standard Single Hand Driven Tricycle: Frame : Made by E.R.W. Tubes 22.22 mm- 18 G. Seat & Back : MS, CRC Sheet Seat Size 18"x 16" Wheel Size : Wheel Diameter 28"x 1 1/2" Tyre and Tube Standard Company. Parts : Standard Quality
1 - 20 of 80 Next › Last »
Showing 20▼ items per page