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Nathan Goodyear

White matter dementia - 0 views

www.ncbi.nlm.nih.gov/...PMC3437529

brain white matter dementia White matter dementia

shared by Nathan Goodyear on 14 Jun 17 - No Cached
  • Nathan Goodyear on 14 Jun 17
     
    white matter dimentia
Nathan Goodyear

Age-Related White Matter Changes - 0 views

www.hindawi.com/...617927

dementia white matter dementia brain white matter

shared by Nathan Goodyear on 14 Jun 17 - No Cached
  • Nathan Goodyear on 14 Jun 17
     
    Good review of White matter changes associated with aging and associated risks and treatments.
Nathan Goodyear

MR spectroscopic imaging of glutathione in the white and gray matter at 7 T with an app... - 0 views

www.sciencedirect.com/...S0730725X09001702

glutathione brain MS multiple sclerosis

shared by Nathan Goodyear on 19 Mar 14 - No Cached
  • Nathan Goodyear on 19 Mar 14
     
    Interesting study on glutathione.  The study looked at glutathione levels in the brain using MR.  The authors found lower glutathione levels in the Grey matter versus normal controls and lower glutathione levels in white matter lesions.
Nathan Goodyear

Cardiorespiratory fitness is associated with white matter integrity in aging - Hayes - ... - 0 views

onlinelibrary.wiley.com/...acn3.204

brain exercise fitness brain health aging

shared by Nathan Goodyear on 07 Jun 16 - No Cached
  • CRF impacts cognition and the brain during childhood, exerts minimal influence during young adulthood when indicators of neural structure and function are typically at their lifetime peak, but may again positively impact brain structure and function in OA as cognitive decline begins in later adulthood.
  • enhanced white matter microstructure in high-fit children relative to low-fit children
  • current results support the notion that CRF contributes to successful brain aging
  • ...1 more annotation...
  • there is regional specificity in the associations between peak VO2 and FA
  • Nathan Goodyear on 07 Jun 16
     
    Physical fitness associated with improved brain aging as the body ages.
Nathan Goodyear

Arch Neurol -- Abstract: Mediterranean Diet and White Matter Hyperintensity Volume in t... - 0 views

archneur.ama-assn.org/...251

mediterranean diet white matter brain

shared by Nathan Goodyear on 15 Feb 12 - No Cached
  • Nathan Goodyear on 15 Feb 12
     
    Mediterranean diet is good for your brain.  Could be a preventative strategy for Excitotoxic diseases.
Nathan Goodyear

Gender and sex hormones in multiple sclerosis pathology and therapy - 0 views

www.ncbi.nlm.nih.gov/...PMC2689399

hormones MS multiple Sclerosis Estriol progesterone

shared by Nathan Goodyear on 11 Jan 17 - No Cached
  • It is now well recognized that the disease manifestation is reduced in pregnant women with relapsing-remitting MS
  • This occurs particularly during the third trimester when levels of estrogens (estradiol and estriol) and progesterone (see Table 2) are elevated up to about 20 times
  • This seems well correlated with a decrease in active white matter lesions detected by MRI
  • ...12 more annotations...
  • This clinical improvement is however followed by temporary rebound exacerbations at post-partum, when the hormone levels decline
  • a shift from Th1 to Th2 immune response, expansion of suppressive regulatory T lymphocytes and decrease in the number of circulating CD16+ natural killer (NK)-cells
  • Th1 lymphocytes secrete proinflammatory cytokines (e.g. IL-2, IFNgamma, lymphotoxin) while Th2 cells secrete anti-inflammatory cytokines (e.g. IL-4, IL-5, IL-10), which favor humoral-mediated responses
  • Th2 cytokines are associated with down-regulation of Th1 cytokines and this Th2 shift is believed to provide protection from allograft rejection during pregnancy as well as from Th1-mediated autoimmune disease
  • it is worth noting that the levels of other hormones with anti-inflammatory activity (1,25-dihydroxy-vitamin D3, norepinephrine, cortisol) also increase by 2 to 4 times during late pregnancy
  • 1,25-dihydroxy vitamin D3 induces regulatory T-cell function important for development of self-tolerance
  • breast-feeding does not alter the relapse rate in women with MS
  • Leptin is a pleiotropic hormone produced primarily by adipocytes but also by T lymphocytes and neurons
  • Several lines of evidence indicate that leptin contributes to EAE/MS pathogenesis, influencing its onset and clinical severity, by acting as a proinflammatory cytokine which promotes regulatory T cell (Treg) anergy and hyporesponsiveness, resulting in increased Th1 (TNFalpha, INFgamma) and reduced Th2 (IL-4) cytokine production
  • circulating leptin levels are increased in relapsing-remitting MS patients (men and women analyzed together) while the CD4+CD25+Treg population decreases
  • As the leptin plasma concentrations are proportional to the amount of fat tissue, obese/overweight individuals produce higher levels of leptin
  • Nielsen et al found that estradiol and progesterone exert neuroprotection against glutamate neurotoxicity, while MPA antagonizes the neuroprotective effect of estradiol and exacerbated neuron death induced by glutamate excitotoxicity
  • Nathan Goodyear on 11 Jan 17
     
    very good review of the differences in MS and hormones between the sexes.
wheelchairindia9

Best Wheelchair For Heavy Person - 0 views

disabilityproduct.in/...HEAVY-DUTY-WHEELCHAIR

Take Safer Shower with a Shower Commode Stool or Chair safely and comfortably provide comfortable and ergonomic support convenient and secure facility easy to keep clean removable or swing away armrests

shared by wheelchairindia9 on 05 Aug 15 - No Cached
  • wheelchairindia9 on 05 Aug 15
     
    People who are very large or heavy may have difficulty using regular chairs. In some cases, they are simply too wide to comfortably fit in an average-sized chair, and in other cases their weight may damage or break the chair entirely. This is not only humiliating to the person who sits in the chair, but could result in injury if the chair collapses. To avoid such an unfortunate occurrence as well as potential litigation, it is important to purchase heavy duty chairs that can accommodate larger family members, employees, and customers. Heavy duty wheelchairs can also be made for specific purposes. An off-road wheelchair, for example, is a heavy duty wheelchair designed for individuals who intend on spending a lot of time on rugged terrain. The most common type of heavy duty wheelchair is a bariatric wheelchair, which is designed to allow larger individuals adequate mobility. For this matter, heavy duty wheelchairs typically have larger seats than conventional wheelchairs. The frames of these wheelchairs can be made from several different reinforced metals, although a titanium wheelchair is often the most popular choice. The wheels themselves are made of thicker rubber than normal, preventing any possible failure due to the greater amount of weight supported. Most makes of heavy duty wheelchairs fold like regular wheelchairs, making storage relatively easy despite the wheelchair's increased size. For the user's convenience, a heavy duty wheelchair can either be manually-operated or motorized, each with its own pros and cons. A manual Heavy Duty Wheelchair gives full control of motion to the user, but the added weight from the reinforcements makes pushing or propelling the wheelchair much harder than normal. A motorized heavy duty wheelchair offers a solution to this dilemma, but is often more expensive and harder to maintain than a manual wheelchair. Some designs offer a combination of both, with a small motor assisting those pushing the wheelchair. The proper c
Nathan Goodyear

Hyperbaric Oxygen Therapy Can Improve Post Concussion Syndrome Years after Mild Traumat... - 0 views

www.ncbi.nlm.nih.gov/...PMC3829860

hbot hyperbaric therapy hyperbaric brain concussion post concussion syndrome TBI traumatic brain injury

shared by Nathan Goodyear on 17 May 17 - No Cached
  • The changes in SPECT images after treatment indicate that HBOT led to reactivation of neuronal activity in stunned areas that seemed normal under CT and MRI imaging. While SPECT imaging has a limited spatial resolution (compared, for example, to fMRI), the changes in activity were sufficiently robust to be clearly detected by the SPECT images.
  • HBOT might initiate a cellular and vascular repair mechanism and improve cerebral vascular flow
  • HBOT induces regeneration of axonal white matter [61], [62], [63], [64], has positive effect upon the myelinization and maturation of injured neural fibers [65], and can stimulate axonal growth and increase the ability of neurons to function and communicate with each other
  • ...6 more annotations...
  • HBOT was found to have a role in initiation and/or facilitation of angiogenesis and cell proliferation processes needed for axonal regeneration [67].
  • The observed reactivation of neuronal activity in the stunned areas found here, along with similar results in post-stroke patients
  • At the cellular level, HBOT can improve cellular metabolism, reduce apoptosis, alleviate oxidative stress and increase levels of neurotrophins and nitric oxide through enhancement of mitochondrial function (in both neurons and glial cells)
  • HBOT may promote the neurogenesis of endogenous neural stem cells
  • With regard to secondary injury mechanisms in mTBI, HBOT can initiate vascular repair mechanism and improve cerebral vascular flow [58], [59], [68], [69], promote blood brain barrier integrity and reduce inflammatory reactions [28] as well as brain edema
  • It might be possible that HBOT enables the metabolic change simply by supplying the missing energy/oxygen needed for those regeneration processes.
  • Nathan Goodyear on 17 May 17
     
    Hbot therapy, according to study, induces neuroplasticity and improves brain function in post concussion syndrome and those with mTBI.  The important point about this study was that the study was done years after the injury; what if the therapy was employed immediately after...
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