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Nathan Goodyear

Glioblastoma Cells Require Glutamate Dehydrogenase to Survive Impairments of Glucose Me... - 0 views

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    This article describes how important glutamine is as an alternative energy source in Glioblastoma. Cancer is a substrate-level dependent energy production disease. If one disrupts glycolysis as a source of energy, then many cancers will use glutamine through glutaminolysis. The cancer cells will do this through glutamate dehydrogenase and glutamate production. This will increase alpha-ketoglutarate which will then feed the substrate-level phosphorylation through the TCA cycle. This study mentioned that EGCG is a way to naturally inhibit glutamate dehydrogenase.
Nathan Goodyear

Salivary testosterone diurnal variation and psychopathology in adolescent males and fem... - 0 views

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    low testosterone in boys associated with anxiety/depression and attention problems.  Disruptive behavior found in girls with low testosterone.  All determined by salivary testing.
Nathan Goodyear

Metabolic biomarkers of increased oxidative stress and impaired methylation capacity in... - 0 views

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    in this study, children with autism found to have detoxification impairment.  Particularily here, methylation disruption and glutathione depletion.
Nathan Goodyear

Minireview: Inflammation and Obesity Pathogenesis: The Hypothalamus Heats Up - 0 views

  • Leptin, secreted by adipocytes in proportion to body fat mass
  • The saturated fatty acid palmitate (16:0) induces NF-κB signaling through a TLR4-dependent mechanism
  • 18:0 (stearic) and longer saturated fatty acids as well as linolenic acid (18:3) increased proinflammatory cytokines, ER stress markers, and TLR4 activation
  • ...6 more annotations...
  • (SOCS)-3. A member of a protein family originally characterized as negative feedback regulators of inflammation (13, 37), SOCS3 inhibits insulin and leptin signaling
  • IKKβ signaling in discrete neuronal subsets appears to be required for both hypothalamic inflammation and excess weight gain to occur during HF feeding
  • the paradoxical observation that hyperphagia and weight gain occur when hypothalamic inflammation is induced by HF feeding, yet when it occurs in response to systemic or local inflammatory processes (e.g. administration of endotoxin), anorexia and weight loss are the rule
  • , serves as a circulating signal of energy stores in part by providing feedback inhibition of hypothalamic orexigenic pathways [e.g. neurons that express neuropeptide Y and agouti-related peptide (AgRP)]
  • and stimulating anorexigenic neurons
  • signals from Toll-like receptors (TLRs), evolutionarily conserved pattern recognition molecules critical for detecting pathogens, amplified through signaling intermediates such as MyD88 activate the inhibitor of κB-kinase-β (IKKβ)/nuclear factor-κB (NF-κB), c-Jun N-terminal kinase (Jnk) and other intracellular inflammatory signals in response to stimulation by circulating saturated fatty acids
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    great read on the current understanding of how obesity and resultant inflammation disrupts hypothalamic function.
Nathan Goodyear

C-Reactive Protein in Healthy Subjects: Associations With Obesity, Insulin Resistance, ... - 0 views

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    The summary statement of this article says it all: "chronic inflammatory state may induce insulin resistance and endothelial dysfunction..."  Inflammation causes insulin dysfunction. And in fact, we know this to be true.  We know that IL-1B and TNF-alpha stimulated by NF-KappaB actually inhibits insulin action via disruption of the GLUT4 receptor.
Nathan Goodyear

Large Differences in Testosterone Excretion in Korean and Swedish Men Are Strongly Asso... - 0 views

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    men with UGT2B17 found to be poor metabolizers of endogenous Testosterone.  Normally, epi-Testosterone and Testosterone exist in a relative 1:1 ratio,  However, in these individuals with this SNP, they will have slightly elevated Testosterone levels due to disrupted phase II testosterone metabolism (glucuronidation).  This is found in 60% of Asian men, 50% of black men, and 1% in white men.
Nathan Goodyear

Reproductive Hormone Levels in Men Exposed to Persistent Organohalogen Pollutants: A St... - 0 views

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    Review finds endocrine disruption from Organocholrides, also called persistent organohalogen pollutants. Common POP, would be DDE, DDT... This is a review of several cohorts, but this follows the rest of the literature that these environmental toxicants are endocrine disruptors.
Nathan Goodyear

Fructose: Metabolic, Hedonic, and Societal Parallels with Ethanol - 0 views

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    Fructose is a major player in the obesity epidemic. This article lays out how fructose disrupts physiology
Nathan Goodyear

Consuming fructose-sweetened, not glucose-sweetened, beverages increases visceral adipo... - 0 views

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    fructose intake, whether in foods or soda, is associated with disrupted metabolism and plays a major role in obesity.
Nathan Goodyear

Urinary Bisphenol A Concentrations in Relation to Serum Thyroid and Reproductive Hormon... - 0 views

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    Granted, these are in men seen in an infertility clinic, but Bisphenol A (BPA) found to disrupt thyroid, increase the E2:T ratio, and a decrease in the free androgen index.  Interestingly, 89% of the men seen in this study tested positive for BPA in the urine.
Nathan Goodyear

Sleep Loss Activates Cellular Inflammatory Signaling - 0 views

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    lack of sleep increases inflammation.  This study showed how one night of sleep disruption can stimulate NF-KappaB activation and thus inflammation.
Nathan Goodyear

Figure 2 : Adipocyte dysfunctions linking obesity to insulin resistance and t... - 0 views

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    chronic, not acute, inflammation disrupts normal triglyceride metabolism and results in increased FFA
Nathan Goodyear

Journal of Traumatic Stress, Volume 3, Number 3 - SpringerLink - 0 views

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    sleep disruption is a major symptom in those with PTSD.  There is no greater stress than combat.  The majority of research on PTSD is done on combat veterans
Nathan Goodyear

short-term benefit from oral vancomycin treatment of regressive-onset autism - 0 views

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    disruption of gut bacteria balance, dysbiosis, proposed to play role in regression autism. This study treated these children with vancomycin. Short interval improvement was found. The take home from this study is the gut-brain connection in children with regression autism
Nathan Goodyear

Autism and Clostridium Tetani - 0 views

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    Dysbiosis is commonly found in children with ASD. Antibiotics disrupt the normal gut microbiota resulting in dysbiosis. This imbalance in gut bacteria is now known to cause systemic inflammatory states such as metabolic endotoxemia. There is no reason to think a similar link may be present between Gut inflammation and ASD
Nathan Goodyear

Do Parabens Have the Ability to Interfere with Steroidogenesis? - 0 views

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    There is growing evidence that some parabens have endocrine disrupting effects.  IN this study, they found that butyl paraben acted as an endocrine disruptor.
Nathan Goodyear

Parabens in male infertility-Is there a mitochondrial connection? 10.1016/j.reprotox.20... - 0 views

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    parabens effect through mitochondrial disruption in testes?
Nathan Goodyear

PsychiatryOnline | The Journal of Neuropsychiatry and Clinical Neurosciences | The Neur... - 0 views

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    TBI results in hormone disruption in 25-69% of those effected.  The major cause is a pituitary/neuro-endocrine effect.  This has been described since the early 20th century.
Nathan Goodyear

Changes in Gut Microbiota Control Metabolic Endotoxemia-Induced Inflammation in High-Fa... - 0 views

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    2008 article from diabetes.  This article supports metabolic endotoxemia arising out of the gut.  High fat diet intake results in disrupted gut flora, resulting in increrased LPS release, resulting in inflammation, leads to leaky gut, systemic endotoxemia, inflammation, and thus metabolic dysfunction: see obesity, DM..
Nathan Goodyear

Perinatal exposure to low-dose bisphenol A affects the neuroendocrine stress response i... - 0 views

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    intra uterine exposure to BPA disrupts stress response in rat model.
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