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Compact & Easy To Use Small Wheel Wheelchair - 0 views

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    Lightweight wheelchairs have many other advantages for the user, one of the biggest advantages of lightweight manual wheelchairs is that they are usually easier to fold and are often more portable than conventional wheelchairs. It can also take advantage of the fact that lightweight chairs are far easier to be used as a self-propelled chairs, meaning that it can enjoy the independence that comes along with having a lightweight manual chair. This provide super lightweight chairs that are easy to fold and store. Light wheelchairs are typically made from aluminum but sometimes from steel or a combination of both metals, which affords their less than standard weight. Travel wheelchairs fold up and are potable for frequent trips to the doctor. Wheelchair is the perfect chair for active children and teenagers. It is lightweight, compact folding and convenient. This portable wheelchair is available with features such as one-piece push handle, flip-up armrests, adjustable seat depth and height adjustable footplates. It also has a 10-degree fixed angle, which allows your child to sit upright. The large rear wheels are perfect for the user who has enough upper body strength to self propel for some distances and would like to take advantage of independent mobility. Karma KM 2500 Small Wheel Wheelchair: Karma KM 2500 Small Wheel Wheelchair Specifications: Width 18" Front/Rear Wheels 6" to 14" Seat Width 47cm Seat Depth 40cm Overall Width 66cm Overall Collapsed Width 36cm Armrest Height 21cm Overall Length 90cm Seat Height 47cm Backrest Height 38cm Overall Height 86cm Weight 9.2 k.g. Karma KM 2500 Small Wheel Wheelchair Seat and Back: AEGIS Microbe Shield Approved by the FDA, EPA, EU, etc., bonded anti-microbial barrier upholstery protects from odor, staining and deterioration from bacteria, fungus and other microorganisms. It is a shield for your health. Karma KM 2500 Small Wheel Wheelchair Extended Armrest: By simulating the natural
wheelchairindia9

Improve Safety By Transport wheelchairs - 0 views

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    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
Nathan Goodyear

Advantage of salivary cortisol measurements in the... [Clin Biochem. 2008] - PubMed result - 0 views

  • Morning salivary cortisol is as good as serum as screening test for patients with Addison's disease and nighttime salivary cortisol is more adequate than serum in the screening of Cushing's syndrome.
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    Advantage of salivary cortisol measurements in the diagnosis of glucocorticoid related disorders.
Nathan Goodyear

Assessment of bioavailability of oral micronized p... [Gynecol Endocrinol. 1993] - PubM... - 0 views

  • The use of non-invasive salivary sampling and a cost-effective, direct enzymeimmunoassay showed a considerable advantage in the present study, compared with previous ones.
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    saliva testing verified as cost effective and with considerable advantage
freshbombsusa

Advantages of Choosing CBD Private Label Services- Fresh Bombs - 0 views

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    If you are new in a CBD business and unaware of policies regarding the establishment. Then, read our valuable points concerning the advantages of choosing private label services for business. These services are essential for production and price control or easy organization. To know more about CBD private label services, search Freshbombs on reliable search engines.
Nathan Goodyear

ScienceDirect.com - Journal of Science and Medicine in Sport - Relationship between ser... - 0 views

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    The use of saliva found to be advantageous over that of serum and urine to assess cortisol.
wheelchairindia9

Tynor Elastic Knee Support - 0 views

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    Tynor Elastic Knee Support Elastic knee Support is a versatile knee support which offers the advantage of controlled compression around the knee and a rigid lateral immobilization and support of a splint. It allows normal flexion and free movement of the knee joint. Patellar Opening. Easy application. Controlled compression. Perfect lateral splinting. Mimics movement of natural joint. Tynor Elastic Knee Support Features Strong aluminum Hinges Rigid side splinting Free flexion movement. Open patella design Release patellar pressure. Hold the patella in position Can be used for Patellofemoral diseases Wrap design Easy application and removal on swollen or asymmetric knees Easy application and removal for weak or geriatric patients. Allows customized compression Offers flexibility in sizing Patellar cushion Improves patient comfort Improves compression Improves grip of the product Large dorsal opening Ensures no buckling on bending No vaso constriction on the dorsal area Improves patient comfort and compliance.
Nathan Goodyear

Salivary Biosensors for Screening Trauma Related Psychopathology - 0 views

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    another article discussing the advantages of salivary testing.
wheelchairindia9

Karma KP-80 - 0 views

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    Powerchair, is more compact and has a better turning radius, making it is easier to navigate narrow doorways and tight turns. Another advantage of the powerchair wheelchair is that its armchair joystick does not require an upright posture like an electric scooter's handlebars. Most powerchair wheelchairs can also be taken apart and stowed, while scooters usually can't. Powerchair wheelchairs are also usually less. Power Wheelchairs/Electric Wheelchairs is specially designed for Disabled and Handicapped People. They are recognized as the prominent manufacturer and supplier of a wide array of Power Wheelchairs. Variety of Power Wheelchairs for handicapped and disability product like: Variety of Power Wheelchairs: Karma KP 10-2 Power Wheelchair Karma KP 10-3 Power Wheelchair Karma KP 80 Power Wheelchair GM Lite Power Wheelchair Bronco Wheelchair Angel Wheelchair Bronco Wheelchair: Bronco Reclining Power Wheelchair Description: Comfort mobility is a professional Bronco Wheelchair and power scooter manufacturer established in 1978 in Taiwan. It operates with the policy of combining high quality with innovation. With dedication to research and development, Bronco wheelchair are exported around the world and earned solid reputation for its superior quality, comfort and convenience. Bronco wheelchair - comfortable, durable, designed for easy and healthy movement with full precautions. Bronco Reclining Power Wheelchair Specifications: Anchorage points Adjustable footplates LED front lights Detachable backrest Flip-back armrests Adjustable headrest Mechanic repairs Optional handbrake Power Wheelchair Features: Battery Power Wheelchair. Seat, base & battery quickly detach for easy storage and transportation Come with captain seat. With seat platform, the captain seat can be moved forward or backward using tools which is included. Adjustable armrest width and height. Footrests can be moved forward or backward for optimum placeme
wheelchairindia9

Electronic Wheel chair - 0 views

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    Golden Technologies takes all the worry out of purchasing a power wheelchair. Designers blend the most technologically advanced components with superior designs to provide with the almost in quality, comfort and style. Motorized wheelchairs to enter bike lanes if a sidewalk isn't available or passable by wheelchair. Wheelchair users would be required to yield the right-of-way to bikers. The proposal also adds motorized wheelchairs to current law affecting vehicles and bicycles on the road, including the required three foot law between bikers and drivers. Supporters bill would help wheelchair users get around quickly and that areas without sidewalks are often difficult to navigate. It's the standard chair, with the main frame attaches to the front. This isn't a futuristic design as such, but a very good way of maintaining or building strength in those who are bound to a wheelchair, and may hope to walk again in their future. Personally, this bike is pretty cool. It's got a front frame similar to a chopper, with the added comfort of a chair appose to a saddle. A new module is set to transform electric powered wheelchairs into communication hubs. An powerchair is more compact and has a better turning radius than an electric scooter; making it is easier to navigate narrow doorways and tight turns. Another advantage of the powerwheelchair is that its armchair joystick does not require an upright posture like an electric scooter's handlebars. Most power wheelchairs can also be taken apart and stowed, while scooters usually can't. Powerwheelchairs are also usually less expensive than scooters. For many disabled people, the only way to move around is by using a wheelchair. Those who cannot powered wheelchairs propel themselves with their arms, which often leads to fatigue, pain, and even permanent damage to arms and shoulders. BENEFITS: Activates circulation system and improves cardio-pulmonary function. Helps prevent decubitus sores. Improves bowel regu
wheelchairindia9

Three Wheel Motorcycle - 0 views

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    Side Wheel Attachment Hero Splendor: 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 Assistive and small sit-down motor scooters provide important advantages to people with problems. A scooter is useful for persons without the stamina or arm/shoulder flexibility necessary to use a manual wheelchair. Also, swiveling the seat of an electric scooter is generally easier than moving the foot supports on most conventional wheelchairs. A mobility scooter is very helpful for persons with systemic or whole-body disabling conditions (coronary or lung issues, some forms of arthritis, obesity, etc.) who are still able to stand and walk a few steps, sit upright without torso support, and control the steering tiller. Features: Compact Design. Ease of Maintenance. Premium Product with best quality kit. Quality Suspension. Lifelong Durability. Good Wheel Balancing. Lifelong Durability.
wheelchairindia9

Complete Flexibility KM 2500 Small Wheel Wheelchair - 0 views

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    Wheelchairs are easy to push, they fold to make them easier to store and simple for a friend or relative to load into a car. A wide selection of accessories too. So customise chair to give the performance, portability, comfort and style. Lightweight portable wheelchair are designed for ease of use and are made from durable material. These wheelchair are often foldable and are easier to store than conventional or custom. They are perfect for both manual and electric wheelchairs, as well as many walking aids such as a 4 wheel scooter. Lightweight portable wheelchair are extremely lightweight and for this reason they are easier to transport and store than many other types of wheelchair. Lightweight portable are made to be ultra lightweight, compact, and user friendly. They fold up in interesting ways to collapse to the size of a suitcase when not in use and are usually large enough to cover one or two stairs when extended. It is important to consider their weight and the person who would most often be carrying the ramp and setting it up. Karma KM 2500 Small Wheel Wheelchair: Karma KM 2500 Small Wheel Wheelchair Specifications: Width 18" Front/Rear Wheels 6" to 14" Seat Width 47cm Seat Depth 40cm Overall Width 66cm Overall Collapsed Width 36cm Armrest Height 21cm Overall Length 90cm Seat Height 47cm Backrest Height 38cm Overall Height 86cm Weight 9.2 k.g. Karma KM 2500 Small Wheel Wheelchair Seat and Back: AEGIS Microbe Shield Approved by the FDA, EPA, EU, etc., bonded anti-microbial barrier upholstery protects from odor, staining and deterioration from bacteria, fungus and other microorganisms. It is a shield for your health. Karma KM 2500 Small Wheel Wheelchair Extended Armrest: By simulating the natural position of arms, the extended armrest design is ergonomic and creates bigger seating space. An Ultra lightweight wheelchair (9.2 kg) with a compact design for either attendant assisted or self propelling users. The use
wheelchairindia9

Tynor Knee Cap With Rigid Hinge - 0 views

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    Tynor Knee Cap (with Rigid Hinge) Knee Cap (with Rigid Hinge) a versatile device which offers the advantage of compression around the knee and the support of a side splint, while allowing normal flexion of knee. Extra strap for secured fitting. Side splinting with free flexion movement. Double layered and four way stretch fabric. Hinge, mimics the motion of natural knee joint. Tynor Knee Cap (with Rigid Hinge) Features Rigid hinges Rigid side splinting Free flexion movement Bilayered, cotton on the inside Ensures dermophillic interphone with the skin, More comfort Better patient compliance Bilayered, nylon on the outside Long life Excellent aesthetics Color fastness. Better comfort Anti tourniquet effect No constriction to blood flow, on one hand Better grip to the body on the other.
wheelchairindia9

Tynor Knee Immobilizer 22 - 0 views

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    Tynor Functional Knee Support is specially designed to support knees which are injured or not working properly due to old age. It stabilizes knees during rotational and anteroposterior forces and cures the ligamentous knee injuries. It provides support to the knees by wrapping around them and thus facilitates their compression. It provides flexibility and easy movement of the knee. It is made of soft, durable fabric which can be stretched in four ways. It mimics the natural knee joint. It can bear the load and shock exerted on it from the external forces leaving the knee totally free from pressure. It contains no buckling or vaso constriction which might hinder comfort. It ensures the proper circulation of blood. It compresses the patellar region and hold it in right position and thus can be used for patellofemoral diseases. It is easy to maintain. Tynor Functional Knee Support Functional knee Support is an anterior opening device, which offers the advantage of controlled compression around the knee and a rigid lateral support and immobilization. It allows normal flexion and free movement of the knee joint. Anterio Open able Easy application Controlled compression. Perfect lateral splinting. Anatomical design. Tynor Functional Knee Support Features Bi axial heavy duty aluminum hinge Mimics the natural knee joint Ensures full weight bearing. Allows free flexion movement Four way stretchable fabric Controlled and comfortable compression No buckling No vaso constriction Enhanced comfort Open patella design Release patellar pressure Hold the patella in position Can be used for Patellofemoral diseases Wrap design with anterior closing Easy application and removal on swollen or asymmetric knees Easy application and removal for weak or geriatric patients. Allows customized compression Offers flexibility in sizing Ergonomic design Anti tourniquet effect - ensures no constriction to blood flow Better grip of the product to the bo
wheelchairindia9

Leg Traction Brace - 0 views

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    Tynor Leg Traction Brace is basically designed to provide traction to the leg. It works well even on the weak or geriatric skin. It ensures proper compression of the leg and provides traction. It is made of three layered polyurethane fabric which makes it soft and comfortable to use. The innermost layer gives the required friction for faster recovery. It is augmented with hook and loop closures to make it convenient to put on and remove. It does not require any adhesion. It provides cushion like support to the leg and relieves it from pain. It also prevents the bone from getting fractured and any muscle pull. It does not cause any peeling of skin and any rash or allergy on skin. It distributes the pressure exerted on the leg evenly. Tynor Leg Traction Brace Leg traction brace is a traction halter applied to the leg for below knee traction. It offers a distinct advantage of a very large holding surface area, ease of application and removal, reuse and patient comfort. Easy application & removal. Can be used for geriatric/ weak skin. Ideal for sensitive skins. Easy monitoring. Distributes pressure evenly. Tynor Leg Traction Brace Features Three-layered PU bonded fabric offers: Soft feel and plush looks through the top layer. Comfortable cushioning through the middle Polyurethane layer. Inner layer provides good frictional characteristics. Multiple hook loop closures Ensure controlled compression. Easy application and removal No loosening, less monitoring Large skin contact area Ensures no vaso-constriction. Eliminates need of an adhesive. Convenient and quick to apply Ensures no skin peeling. Ideal for weak or geriatric skins Tynor Rib Belt Rib belt is applied to the thoracic and upper abdominal region to compress and bind the rib cage during rib fractures and postoperative care, while allowing sufficient flexibility for comfortable breathing. Extra porous. With splinting pad. No buckling or rolling over. Controlled compression
wheelchairindia9

Functional Knee Support - 0 views

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    Tynor Functional Knee Support Functional knee Support is an anterior opening device, which offers the advantage of controlled compression around the knee and a rigid lateral support and immobilization. It allows normal flexion and free movement of the knee joint. Anterio Open able Easy application Controlled compression. Perfect lateral splinting. Anatomical design. Tynor Functional Knee Support Features Bi axial heavy duty aluminum hinge Mimics the natural knee joint Ensures full weight bearing. Allows free flexion movement Four way stretchable fabric Controlled and comfortable compression No buckling No vaso constriction Enhanced comfort Open patella design Release patellar pressure Hold the patella in position Can be used for Patellofemoral diseases Wrap design with anterior closing Easy application and removal on swollen or asymmetric knees Easy application and removal for weak or geriatric patients. Allows customized compression Offers flexibility in sizing Ergonomic design Anti tourniquet effect - ensures no constriction to blood flow Better grip of the product to the body. Anatomic construction- Better functionality and Snug fit.
Nathan Goodyear

Multiple Myeloma Tumor Cells are Selectively Killed by Pharmacologically-dosed Ascorbic... - 0 views

  • Recent reports indicate that a certain ROS concentration is required for high-dose vitamin C to induce cytotoxicity in cancer cells.
  • The generation of ascorbyl- and H2O2 radicals by PAA increases ROS stress in cancer cells
  • In this study, we report that PAA is efficacious in killing MM cells in vitro and in vivo models, which generated levels of 20–40 mM ascorbate and 500 nM ascorbyl radicals after intraperitoneal administration of 4 g ascorbate per kilogram of body weight (Chen et al., 2008Chen et al., 2008), in xenograft MM mice
  • ...33 more annotations...
  • These data suggest that PAA may show a therapeutic advantage to blood cancers vs solid tumors because of the communication between tumor cells and blood plasma
  • These results strongly suggest that the mechanism of PAA killing of MM cells is indeed iron-dependent
  • These results suggest that PAA administration in SMM may be able to prevent progression to symtomatic MM
  • A recent study by Yun and colleagues demonstrated that vitamin C selectively kills KRAS and BRAF mutant colorectal cancer cells by targeting GAPDH, but spares normal cells
  • RAS family genes show the most frequent mutations in MM. KRAS, NRAS and BRAF are mutated in 22%, 20% and 7% of MM samples
  • the disease stage rather than the mutation of RAS and/or BRAF is the major predictive factor for PAA sensitivity in MM treatment
  • Other molecular mechanisms including ATP depletion and ATM-AMPK signaling have been reported to explain PAA-induced cell death
  • our pilot study also suggested that PAA could overcome drug resistance to bortezomib in MM cells
  • Our findings complement reported studies and further address the mechanism of action using clinical samples in which we observed that PAA killed tumor cells with high iron content, suggesting that iron might be the initiator of PAA cytotoxicity
  • combination of PAA with standard therapeutic drugs, such as melphalan, may significantly reduce the dose of melphalan needed
  • Combined treatment of reduced dose melphalan with PAA achieved a significantly longer progression-free survival than the same dose of melphalan alone.
  • These data also suggest that the bone marrow suppression induced by high-dose melphalan can be ameliorated by the combination of PAA with lower dose of melphalan because of the lack of toxicity of PAA on normal cells with low iron content.
  • if creatinine clearance is <30 mL/min, high dose ascorbic acid should be not administrated.
  • In MM preclinical and clinical studies, ascorbate was used as an adjunct drug and showed controversial results (Harvey et al., 2009, Perrone et al., 2009, Held et al., 2013, Sharma et al., 2012, Nakano et al., 2011, Takahashi, 2010, Sharma et al., 2009, Qazilbash et al., 2008). However, none of these tests used pharmacological doses of ascorbate and intravenous administration
  • Multiple myeloma (MM) is a plasma cell neoplasm.
  • Cameron and Pauling reported that high doses of vitamin C increased survival of patients with cancer
  • pharmacologically dosed ascorbic acid (PAA) 50–100 g (Chen et al., 2008, Padayatty et al., 2004, Hoffer et al., 2008, Padayatty et al., 2006, Welsh et al., 2013), administered intravenously, has potent anti-cancer activity and its role as anti-cancer therapy is being studied at the University of Iowa and in other centers
  • In the presence of catalytic metal ions like iron, PAA administered intravenously exerts pro-oxidant effects leading to the formation of highly reactive oxygen species (ROS), resulting in cell death
  • the labile iron pool (LIP) is significantly elevated in MM cells
  • The survival of CD138+ cells in vitro was significantly decreased following PAA treatment in all 9 MM
  • In contrast, no significant change of cell viability was observed in CD138− BM cells from the same patients
  • The same effect of PAA was also observed in the SMM patients
  • no response to PAA was detected in CD138+ cells from the 2 MGUS patients
  • the combination of melphalan plus PAA showed greater tumor burden reduction than each drug alone, suggesting a synergistic activity between these two drugs
  • Both catalase and NAC protect cells from oxidative damage
  • cells pretreated with NAC and catalase became resistant to PAA even at high doses
  • adding deferoxamine (DFO), an iron chelator, to OCI-MY5 cells before PAA treatment was also sufficient to prevent PAA-induced cellular death
  • iron is essential for PAA to achieve its anti-cancer activity
  • PAA induced early necrosis (Fig. 3Fig. 3A, 60 min) followed by late apoptosis
  • results further indicated that PAA induced mitochondria-mediated apoptosis
  • PAA by reacting with LIP and generating ROS induces mitochondria-mediated apoptosis in which AIF1 cleavage is important for cell death.
  • ROS and H2O2 are well known factors mediating PAA-induced cancer cell death
  • PAA was sensitive to all 9 MMs and 2 SMMs
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    animal study finds high-dose, pharmacologic vitamin C found to kill multiple myeloma cells via pro-oxidant effect found in similar studies in dealing with different cancers.
Nathan Goodyear

How We Read Oncologic FDG PET/CT | Cancer Imaging | Full Text - 0 views

  • In early PET literature focusing on analysis of solitary pulmonary nodules, some researchers defined malignancy based on a SUVmax threshold of greater than 2.5
  • We contend that SUV analysis has virtually no role in this setting.
  • tumours grow as spheres, whereas inflammatory processes are typically linear
  • ...35 more annotations...
  • Far more important than the SUVmax is the pattern rather than intensity of metabolic abnormality and the correlative CT findings
  • Descriptively, we define SUV < 5 as “low intensity”, 5–10 as “moderate”, 10–15 as “intense” and >15 as “very intense”
  • Evolving literature suggests that intensity of uptake is an independent prognostic factor and in some tumour subtypes superior to histopathologic characterisation.
  • aerobic glycolysis
  • Our practice of thresholding the grey and colour scale to liver as detailed above results in similar image intensity to a fixed upper SUV threshold of 8 to 10
  • The advantage of using the liver as a reference tissue is also aided by this organ having rather low variability in metabolic activity
  • When the liver is abnormal and cannot be used as a reference organ, we use the default SUV setting of an upper SUV threshold of 8
  • One of the most challenging aspects of oncologic FDG PET/CT review, however, is to recognise all the patterns of metabolic activity that are not malignant and which consequently confound interpretation
  • Many benign and inflammatory processes are also associated with high glycolytic activity
  • Future articles in the “How I Read” series will address the specific details of reading PET/CT in various cancers
  • The intensity of uptake in metastases usually parallels that in the primary site of disease
  • For example, discordant low-grade activity in an enlarged lymph node in the setting of intense uptake in the primary tumour suggests it is unlikely malignant and more likely inflammatory or reactive
  • By CT criteria the enlarged node is ‘pathologic’ but the discordantly low metabolic signature further characterises this is as non-malignant since such a node is not subject to partial volume effects and therefore the intensity of uptake should be similar to the primary site
  • The exception is when the lymph node is centrally necrotic as a small rim of viable tumour is subject to partial volume effects with expectant lower intensity of uptake; integrating the CT morphology is therefore critical to reaching an accurate interpretation
  • Small nodes that are visualised on PET are conversely much more likely to be metastatic as such nodes are subject to partial volume effects.
  • The exception to this rule is tumours with a propensity for tumour heterogeneity at different sites
  • The combination of FDG and a more specific tracer, which visualises the well-differentiated disease can be very useful to characterise this phenomenon
  • “metabolic signature”
  • For the majority of malignant processes, the intensity of metabolic abnormality correlates with degree of aggressiveness or proliferative rate.
  • a negative PET/CT study in a patient with biopsy proven malignancy would be considered false-negative
  • Warburg effect
  • There, however, are a significant minority of tumours that utilise substrates other glucose such as glutamine or fatty acids as a source of the carbon atoms required for growth and proliferation
  • This includes a subset of diffuse gastric adenocarcinomas, signet cell colonic adenocarcinomas and some sarcomas, particularly liposarcoma
  • There may be a role for other radiotracers such as fluorothymidine (FLT) or amino acid substrates in this setting.
  • Some tumours harbour mutations that result in defective aerobic mitochondrial energy metabolism, effectively simulating the Warburg effect
  • patients with hereditary paraganglioma and pheochromocytoma highlight this phenomenon
  • These have intense uptake on FDG PET/CT despite often having low proliferative rate.
  • Uterine fibroids, hepatic adenomas, fibroadenomas of the breast and desmoid tumours are benign or relatively benign lesions that can have quite high FDG-avidity.
  • Metabolic activity switches off rapidly following initiation of therapy
  • Common examples where patients have commenced active therapy but the referrer is requesting “staging” includes hormonal therapy (eg. tamoxifen) in breast cancer, oral capecitabine in colorectal cancer or high dose steroids in Hodgkin’s lymphoma
  • It is therefore critical to perform PET staging before commencement of anti-tumour therapy
  • The potential advantage of routine diagnostic CT is improved anatomic localisation and definition
  • Without intravenous contrast, additional identification of typical oncologic complications such as pulmonary embolism or venous thrombosis cannot be identified
  • If the study is performed as an “interim” restaging study after commencement of therapy but before completion, in order to reach a valid or clinically useful conclusion findings must be interpreted in the context of known changes that occur at a specific timing and type of therapy
  • The most well studied use of interim PET is in Hodgkin’s lymphoma where repeat PET after two cycles of ABVD-chemotherapy provides powerful prognostic information and may improve outcomes by enabling early change of management
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    good read on the PET/CT scan reading.  They mention that tumors are spheres and inflammation is linear, yet inflammation coexists with cancer; hard to simply delineate these on simple terms. I do agree aon the metabolic signature of the PET/CT scan
Nathan Goodyear

Tumor cells have decreased ability to metabolize H2O2: Implications for pharmacological... - 0 views

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    Cancer cells have reduced catalase activity and thus reduced capability to metabolize H202. IV vitamin takes advantage of this deficiency.
Nathan Goodyear

Outcompeting p53-Mutant Cells in the Normal Esophagus by Redox Manipulation - ScienceDi... - 0 views

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    Low dose radiation from CT found to contribute to altered genetic expression of p53 tumor suppressor gene to give competitive advantage to potential cancer cells over health cells.
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