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Nathan Goodyear

Vitamin E Protects Against Oxidative Damage and Learning Disability After Mild Traumati... - 0 views

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    Animal study: vitamin E protects against mild TBI
Nathan Goodyear

https://www.cns.org/sites/default/files/clinical_neuro/Chapter18_0.pdf - 0 views

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    Human study: High dose IV vitamin C and IM vitamin E shown to improve outcome.
Nathan Goodyear

Time-level relationship for lipid peroxidation and the protective effect of alpha-tocop... - 0 views

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    Animal study: vitamin E (alpha tocopherol only therapy) protected against lipid oxidation in mild and severe TBI.
Nathan Goodyear

Vitamin E reduces amyloidosis and improves cognitive function in Tg2576 mice following ... - 0 views

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    animal model: vitamin E reduced brain lipid oxidation post TBI.
Nathan Goodyear

Targeting Dopamine in Acute Traumatic Brain Injury - 0 views

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    great read on the current understanding of dopamine in TBI--essentially an excitotoxic story.
Nathan Goodyear

Depletion of Brain Docosahexaenoic Acid Impairs Recovery from Traumatic Brain Injury - 0 views

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    DHA plays important role in TBI risk and recovery.
Nathan Goodyear

Diminished brain resilience syndrome: A modern day neurological pathology of increased ... - 0 views

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    concussions
Nathan Goodyear

Hypopituitarism after traumatic brain injury. - PubMed - NCBI - 0 views

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    TBI results in isolated or complete pituitary failure (PTHP) in up to 40% of those with TBI.  
Nathan Goodyear

High Prevalence of Chronic Pituitary and Target-Organ Hormone Abnormalities after Blast... - 0 views

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    The prevalence of post traumatic hypopituitarism post TBI sits at around 35%.  
Nathan Goodyear

Prevalence of chronic hypopituitarism after blast concussion -- Wilkinson et al. 27 (1)... - 1 views

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    One of the first studies to look at PCS found that 42% of soldiers produced abnormally low hormone production following TBI one year after the injury.  This study highlights the potential pituitary dysfunction that can result from TBI.
Nathan Goodyear

Concussions' Lingering Effects Linked to Hormone Deficiency - Scientific American - 0 views

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    Scientific American article from 2013 highlights the link between head trauma and pituitary dysfunction.  
Nathan Goodyear

Dietary Strategy to Repair Plasma Membrane After Brain Trauma - 0 views

  • concussive brain injury is a major cause of neuropsychological disability in spite of no obvious neuronal death
  • TBI elicits oxidative damage to plasma membrane phospholipids
  • DHA is the most abundant polyunsaturated fatty acid (PUFA) in the brain, where the DHA-containing phospholipids contribute to plasma membrane biogenesis and receptor signaling
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  • curcumin has potent anti-inflammatory and antioxidant activities that can function to reduce oxidative damage and cognitive deficits associated with neurological disorders
  • Curcumin provided in the diet before TBI can reduce oxidative damage and counteract TBI-related cognitive dysfunction
  • Our previous study indicated that n-3 fatty acids supplemented in the diet counteracted learning disability after TBI
  • curcumin contributes to enhance the effects of DHA on TBI by promoting phosphorylation of the BDNF receptor TrkB in the hippocampus
  • previous evidence indicates that curcumin10 and DHA5 counteract TBI-related learning disability by involving BDNF
  • Our findings indicate that curcumin counteracted the TBI-related reduction in n-3 DPA.
  • curcumin may promote the conversion of n-3 DPA to DHA
  • the combination of both nutrients has been reported to produce anti-inflammatory action
  • the enhanced actions of curcumin and DHA in reducing cholesterol levels could be interpreted as preservation of levels of phospholipids in the plasma membrane
  • curcumin and DHA may contribute to reduce inflammation associated with the action of cholesterol in the pathology of TBI.
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    Curcumin and DHA shown to protect against TBI through a reduction in inflammation and maintenance of brain phospholipid membranes.  BDNF is increases also.
Nathan Goodyear

Omega-3 Fats Critical to Brain Health After Traumatic Injury and Surgery - 0 views

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    Just the press release, but DHA and EPA found to improve nerve cell survival, reduce neuroinflammation and decrease oxidative stress via "resolvins"
Nathan Goodyear

Dietary Supplementation With the Omega-3 Fatty Acid Docosahe... : Neurosurgery - 0 views

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    Animal study finds pre-emptive DHA at 40 mg/kg reduced injury response during medically induced TBI.  Not only can DHA be used with TBI, but this study suggests it can be used in a prevention mode.
Nathan Goodyear

Docosahexaenoic Acid Reduces ER Stress and Abnormal Protein Accumulation and Improves N... - 0 views

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    Animal study finds DHA aids recovery from TBI.
Nathan Goodyear

Eicosapentaenoic Acid (EPA) and Docosahexaenoic Acid (DHA) - Nutrition and Traumatic Br... - 0 views

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    Evidence does support that n-3 reduces inflammation; yet limited evidence exists to provide direct evidence that n-3 protects against TBI.
Nathan Goodyear

PLOS ONE: Depletion of Brain Docosahexaenoic Acid Impairs Recovery from Traumatic Brain... - 0 views

  • The polyunsaturated fatty acids linoleic (LA, 18:2n-6) and linolenic acid (LNA, 18:3n-3) are essential fatty acids that cannot be synthesized by the body.
  • LNA serves as the precursor for long chain omega-3 fatty acids such as docosahexaenoic acid (DHA) while LA is converted into long chain omega-6 fatty acids such as arachidonic acid (AA)
  • DHA and AA are abundantly found in the brain, where these are stored mainly in membrane phospholipids
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  • DHA has been shown to increase neurite outgrowth and synaptogenesis, and promotes glutamatergic neurotransmission through increase in glutamate receptor subunit expression
  • DHA has been shown to be converted to anti-inflammatory, proresolving and neuroprotective mediators, such as resolvins [7] and protectins
  • AA is converted by cyclooxygenases into 2-series prostaglandins and 4-series leukotrienes, most of which exert pro-inflammatory effects
  • Supplementation of DHA exerts neuroprotective effects and has been reported to afford protection from diffuse axonal injury [11] and mixed brain injury [12] as well
  • severe depletion of membrane DHA in the brain renders mice significantly more susceptible to TBI and impairs recovery following the injury
  • Omega-3 fatty acids may serve as nutraceutical agents and precondition the brain to make it more resilient to injury
  • it can be suggested that enriching DHA in the brain may be prophylactic and protective against brain injury
  • severe DHA deficiency in the brain impairs functional recovery from TBI in terms of vestibulo-motor and cognitive deficits
  • DHA deficiency further elevates TBI-induced production of SBDPs
  • less neurons were found around the injury site of DHA deficient brain after TBI compared to the omega-3 fatty acid adequate group
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    mouse study finds prolonged recovery in DHA deficient mice compared to controls.
Nathan Goodyear

Dietary Strategy to Repair Plasma Membrane After Brain Trauma - 0 views

  • strategies directed to preserve phospholipids in the plasma membrane such as the use of dietary docosahexaenoic acid (C22:6n-3; DHA)5 can have beneficial effects for post-TBI recovery
  • DHA is the most abundant polyunsaturated fatty acid (PUFA) in the brain
  • Curcumin provided in the diet before TBI can reduce oxidative damage and counteract TBI-related cognitive dysfunction.
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  • Our previous study indicated that n-3 fatty acids supplemented in the diet counteracted learning disability after TBI
  • There was a significant group effect on BDNF (F 4,25 = 5.229, P < .01 by ANOVA), and FPI reduced BDNF levels (50% of CTL, P < .01; Figure 1C), which was counteracted by DHA supplementation (90% of CTL, P < .05; Figure 1C). Curcumin also counteracted this reduction of BDNF
  • The combination of curcumin and DHA had a trend of greater effects in BDNF (117% of CTL; Figure 1C) compared with DHA or curcumin alone.
  • curcumin contributed to enhance the action of DHA, protecting against cognitive impairment, and these effects were associated with elevations in the BDNF receptor signaling
  • Our current results show that curcumin contributes to enhance the effects of DHA on TBI by promoting phosphorylation of the BDNF receptor TrkB in the hippocampus.
  • previous evidence indicates that curcumin10 and DHA5 counteract TBI-related learning disability by involving BDNF
  • The effects of the DHA diet and curcumin on cognitive enhancement were consistent with enhanced elevations in BDNF receptor signaling
  • effects of DHA and curcumin up to 2 weeks after TBI because this is the most critical period for the course of injury recovery because the brain is metabolically dysfunctional during this time
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    study that finds curcumin + DHA increased cognitive improvement after TBI within 2 weeks.  Good discussion of the proposed mechanism--increased BDNF.
Nathan Goodyear

ω-3 Fatty Acid Supplementation as a Potential Therapeutic Aid for the Recover... - 0 views

  • There is a growing body of preclinical literature suggesting that ω-3 FAs, and DHA in particular, may play a therapeutic role in mTBI
  • the potential for ameliorating or possibly even preventing the complications associated with concussions
  • DHA is the predominant ω-3 FA present in the brain, and, consistent with this finding, DHA, and not EPA, has been demonstrated to be critical for brain development and cognitive function throughout life
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  • the concentration of EPA in the brain is negligible (7780), suggesting that EPA plays a limited role in mediating the beneficial effects of LCPUFA supplementation on mTBI pathology
  • the current state of the science regarding LCPUFA supplementation for the treatment of concussion is based primarily on animal models
  • there is evidence that the amount of DHA in brain tissue is decreased after mTBI (65, 66), suggesting an elevated need for DHA in mTBI recovery.
  • the well-established role of DHA in supporting the structure and function of the brain throughout the lifespan (26, 27, 46, 47, 53) provides encouragement that LCPUFAs may also prove beneficial in the context of concussion recovery.
  • no therapies are currently available to aid the recovery from this injury
  • Previously discussed reports outlining the use of ω-3 FAs in the recovery from severe TBIs (reviewed in Ref. 92) described the use of very-high doses of LCPUFAs (16.2 g/d EPA plus DHA) in the recovery of these patients
  • Within the context of mTBIs/concussions, translating a DHA intake used in several rat studies of mTBI recovery (40 mg ⋅ kg−1 ⋅ d−1 DHA) (57, 63, 64) using body surface area conversion methods (93) amounts to an estimated human intake of 387 mg/d DHA
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    nice review of the evidence of n-3, particularily DHA, in concussions and concussion recovery.
Nathan Goodyear

Progesterone neuroprotection in trauma... [Front Neuroendocrinol. 2009] - PubMed - NCBI - 0 views

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    Progesterone has a neuroprotective and promyelinating effects in the nervous system.  Progesterone increases BDNF.  Progesterone increases proliferation and differentiation of oligodendrocyte progenitor cells which will increase myelin production.
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