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Nathan Goodyear

Decreased Serum Cu/Zn SOD Associated with High Copper in Children with Attention Defici... - 0 views

www.ncbi.nlm.nih.gov/...PMC3661234

superoxide disumutase SOD ADD ADHD attention deficit disorder copper

shared by Nathan Goodyear on 07 Oct 13 - No Cached
  • Nathan Goodyear on 07 Oct 13
     
    low SOD found to be associated with ADD/ADHD
Nathan Goodyear

Oxidative imbalance in adult attention deficit/... [Biol Psychol. 2008] - PubMed - NCBI - 0 views

www.ncbi.nlm.nih.gov/...18644422

SOD superoxide disumutase ADD ADHD attention deficit disorder

shared by Nathan Goodyear on 07 Oct 13 - No Cached
  • Nathan Goodyear on 07 Oct 13
     
    low SOD associated with ADD/ADHD
Nathan Goodyear

Biomarkers of Adverse Response to Mercury: Histopathology versus Thioredoxin Reductase ... - 0 views

www.hindawi.com/...359879

mercury Hg detoxification catalase superoxide disumutase glutathione peroxidase glutathione selenium

shared by Nathan Goodyear on 10 Oct 13 - No Cached
  • Nathan Goodyear on 10 Oct 13
     
    Mercury and changes in detoxification biomarkers.
Nathan Goodyear

Positive effects of astaxanthin on lipid profiles and oxidative stress in overweight su... - 0 views

www.ncbi.nlm.nih.gov/...21964877

astaxanthin MDA malondialdehyde oxidative stress SOD superoxide disumutase oxidized LDL LDL LDL cholesterol CVD

shared by Nathan Goodyear on 14 Jul 15 - No Cached
  • Nathan Goodyear on 14 Jul 15
     
    Astaxanthin at 20 mg found to reduce oxidized LDL and other oxidative stress biomarkers as assessed by Malondialdehydy, SOD, Isoprostane, and TAC.  The dose was 20 mg for 12 weeks. This higher dose was associated with minimal side effects--red stools.
Nathan Goodyear

Effects of astaxanthin on oxidative stress in overweight and obese adults. - PubMed - NCBI - 0 views

www.ncbi.nlm.nih.gov/...21480416

oxidative stress astaxanthin malondialdehyde superoxide disumutase isoprostane

shared by Nathan Goodyear on 14 Jul 15 - No Cached
  • Nathan Goodyear on 14 Jul 15
     
    short study found that astaxanthin at 5 and 20 mg was associated with a reduction in oxidative stress biomarkers.
Nathan Goodyear

ScienceDirect - Food and Chemical Toxicology : Neuroprotective effect of ginger on anti... - 0 views

www.sciencedirect.com/science

Ginger diabetes oxidative stress

shared by Nathan Goodyear on 27 Apr 11 - No Cached
  • A marked decrease in anti-oxidant marker enzymes, superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (GPx), glutathione reductase (GR), reduced glutathione (GSH) and increase in malondialdehyde (MDA) was observed in the diabetic rats
  • inger may be used as therapeutic agent in preventing complications in diabetic patients.
  • These results suggest that ginger exhibit a neuroprotective effect by accelerating brain anti-oxidant defense mechanisms and down regulating the MDA levels to the normal levels in the diabetic rats
  • Nathan Goodyear on 27 Apr 11
     
    Ginger reduces oxidative stress in diabetic rat model
Nathan Goodyear

Beneficial effects of a long-term oral L-arginine treatment added to a hypocaloric diet... - 0 views

ajpendo.physiology.org/...E906.full

L-Arginine weight loss diet overweight obesity insulin-resistant diabetic patients

shared by Nathan Goodyear on 09 Jul 11 - No Cached
  • L-arginine supplementation further decreased FM (P < 0.05) and waist circumference (P < 0.0001), preserving FFM (P < 0.03), and improved mean daily glucose profiles (P < 0.0001) and fructosamine (P < 0.03). Moreover, change in area under the curve of cGMP (second messenger of nitric oxide; P < 0.001), superoxide dismutase (index of antioxidant capacity; P < 0.01), and adiponectin levels (P < 0.02) increased, whereas basal endothelin-1 levels (P < 0.01) and leptin-to-adiponectin ratio (P < 0.05) decreased in the L-arginine group.
  • Nathan Goodyear on 09 Jul 11
     
    L-Arginine helps to preserve muscle, while increase fat loss.  This will help to prevent fat rebound in weight loss programs.  Additionally, insulin resistance improved.
Nathan Goodyear

Cancer-preventing attributes of probioti... [Int J Food Sci Nutr. 2010] - PubMed - NCBI - 0 views

www.ncbi.nlm.nih.gov/...20187714

protbiotics cancer SOD superoxide disumutase catalase glutathione peroxidase glutathione-S-transferase

shared by Nathan Goodyear on 05 Aug 14 - No Cached
  • Nathan Goodyear on 05 Aug 14
     
    The evidence of probiotics in cancer is limited.  The limited evidence points to an increase in anti-oxidative enzymes i.e. glutathion-S-transferase, glutathione perioxidase, catalase, SOD.
Nathan Goodyear

Role of Oxidative Stress and the Microenvironment in Breast Cancer Development and Prog... - 0 views

www.ncbi.nlm.nih.gov/...PMC3950899

cancer oxidative stress warburg effect reverse warburg effect ROS

shared by Nathan Goodyear on 11 Nov 14 - No Cached
  • oxidative stress leads to HIF-1α accumulation
  • increased levels of hydrogen peroxide in exhaled breath condensate from patients with localized breast malignancy, associated with increased clinical severity
  • Oxidative stress generated by breast cancer cells activates HIF-1α and NFκB in fibroblasts, leading to autophagy and lysosomal degradation of Cav-1
  • ...18 more annotations...
  • Comparing mitochondrial metabolic activity revealed a difference between stroma and epithelial cells
  • metalloproteinases (MMP) such as MMP-2, MMP-3, and MMP-9 increase extracellular matrix turnover and are themselves activated by oxidative stress
  • Overexpression of NOX4 in normal breast epithelial cells results in cellular senescence, resistance to apoptosis, and tumorigenic transformation, as well as increased aggressiveness of breast cancer cells
  • Lowered expression of Cav-1 not only leads to myofibroblast conversion and inflammation but also seems to impact aerobic glycolysis, leading to secretion of high energy metabolites such as pyruvate and lactate that drive mitochondrial oxidative phosphorylation in cancer cells
  • Reverse Warburg Effect
  • secreted transforming growth factor β (TGFβ), insulin-like growth factor (IGF), platelet-derived growth factor (PDGF), fibroblast growth factor 2, and stromal-derived factor 1 (SDF1) are able to activate fibroblasts and increase cancer cell proliferation
  • oxidative stress has an important role in the initiation and preservation of breast cancer progression
  • cancer preventive role of healthy mitochondria
  • the cancer cells produce hydrogen peroxide and by driving the “Reverse Warburg Effect” initiate oxidative stress in fibroblasts. As a result of this process, fibroblasts exhibited reduced mitochondrial activity, increased glucose uptake, ROS, and metabolite production.
  • Oxidative stress results from an imbalance between unstable reactive species lacking one or more unpaired electrons (superoxide anion, hydrogen peroxide, hydroxyl radical, reactive nitrogen species) and antioxidants
  • cancer cells are able to induce drivers of oxidative stress, autophagy and mitophagy: HIF-1α and NFκB in surrounding stroma fibro-blasts
  • Studies show that loss of Cav-1 in adjacent breast cancer stroma fibroblasts can be prevented by treatment with N-acetyl cysteine, quercetin, or metformin
  • However, diets rich in antioxidants have fallen short in sufficiently preventing cancer
  • obstructing oxidative stress in the tumor microenvironment can lead to mitophagy and promote breast cancer shutdown is a promising discovery for the development of future therapeutic interventions.
  • It is widely held that HIF-1α function is dependent upon its location within the tumor microenvironment. It acts as a tumor promoter in CAFs and as a tumor suppressor in cancer cells
  • It was reported that overexpression of recombinant (SOD2) (Trimmer et al., 2011) or injection of SOD, catalase, or their pegylated counterparts can block recurrence and metastasis in mice
  • hydrogen peroxide is one of the main factors that can push fibroblasts and cancer cells into senescence
  • Recent studies show that in the breast cancer microenvironment, oxidative stress causes mitochondrial dysfunction
  • Nathan Goodyear on 11 Nov 14
     
    Really fascinating article on tumor signaling. The article points to a complex signaling between cancer cells and stromal fibroblasts that results in myofibroblast transformation that increases the microenvironment favorability of cancer. This article points to oxidative stress as the primary driving force.  
Nathan Goodyear

http://www.iasj.net/iasj?func=fulltext&aId=1538 - 0 views

www.iasj.net/iasj

oxidative stress glutathione GSH malondialdehyde testing superoxide disumutase SOD saliva uric acid

shared by Nathan Goodyear on 21 Oct 14 - No Cached
  • Nathan Goodyear on 21 Oct 14
     
    serum and salivary oxidative stress biomarkers used to follow children with autism in Iraq.
Nathan Goodyear

5-Methyltetrahydrofolate Rapidly Improves Endothelial Function and Decreases Superoxide... - 0 views

circ.ahajournals.org/...1193.long

BH4 5-methyltetrahydrofolate tetrahydrobiopterine MTHFR MTHFR A1298C eNOS NO nitric oxide atherosclerosis cardiovascular disease CVD

shared by Nathan Goodyear on 14 Sep 17 - No Cached
  • Nathan Goodyear on 14 Sep 17
     
    5-MTHF increases BH4 which increases eNOS activity and NO production providing improved endothelial function and thereby providing a mechanism to reduce atherosclerosis.  Interesting that the MTHFR A1298C decreases BH4 in contrast to the 677T.
Nathan Goodyear

The effect of treatment with coenzyme Q10 on the mitochondrial function and superoxide ... - 0 views

www.ncbi.nlm.nih.gov/...3031317

CoQ10 heart heart health mitochondria

shared by Nathan Goodyear on 16 Jun 17 - No Cached
  • Nathan Goodyear on 16 Jun 17
     
    IM CoQ10 useful in animal model with cardiac hypertrophy and aortic stenosis.
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