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Nathan Goodyear

Chronobiology in laboratory medicine: principles a... [Prog Clin Biol Res. 1990] - PubM... - 0 views

  • Without doubt, salivary steroid assays are valuable tools for use in clinical studies, not necessarily as a single time-qualified sample but more often as a series of samples that will describe the underlying endocrinological time-structure.
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    Chronobiology in laboratory medicine: principles and clinical applications illustrated from measurements of neutral steroids in saliva.
Nathan Goodyear

Biologic and Pharmacologic Principles of ET for Menopause: Estrogen Steroidogenesis and... - 0 views

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    biologic and pharmacologic principles of ET for Menopause: Estrogen synthesis and action
Nathan Goodyear

http://www.shen-nong.com/eng/exam/diagnosis_eightprinciples.html - 0 views

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    Review of the ancient Chinese 8 principles
Nathan Goodyear

Estrogen attenuates glutamate-induced cell death by inhibiting Ca2+ influx through L-ty... - 0 views

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    Estradiol inhibits glutamate mediated influx of calcium and thus cell death in cell line.  Glutamate, the principle excitatory neurotransmitter, is involved in neurodegeneration through activation of calcium channels.  This study of cell line cultures found that Estradiol inhibits this process.  I question whether this is applicable to both men and women.  Time will tell.
Dr. Jennifer Martinick

Dr Jennifer Martinick - A Review of the Facilities Offered - 0 views

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    Dr Jennifer Martinick, the principle consulting hair transplant surgeon of the Martinick Hair Restoration clinics shares a review of the treatments and facilities offered.
wheelchairindia9

Net Neutrality: Battle to 'save the Internet' - 0 views

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    Net neutrality is one of the biggest issue debated globally by the telecom regulators and it is also in the process of finalising what will be a landmark recommendation for Indian telecom. The important aspects of Net neutrality are: Internet service providers should enable access to all content and applications regardless of the source. The Internet service provider from whom buy internet pack, should not under any circumstance be able to control how exactly use it and it's upto how you use the data. All websites can co-exist without hampering others and all websites are accessible at the same speed and no particular website of application is favoured. All web sites and content creators are treated equal, and it don't have to pay extra for faster Internet speed to a particular site/service. The concept of net neutrality doesn't exist legally but most companies have Net Neutrality is simply the Internet Freedom - Free, Fast and Open Internet for all. Net Neutrality is the principle that Internet service providers (ISPs) should give consumers access to all and every contents and application on an equal basis, treating all Internet traffic equally. Today, if there's something that makes everyone across the world "Equal" is nothing but the Internet. Equality over the Internet means, the richest man in the world has the same rights to access the Internet as the poorer. And this is what "Net Neutrality" aims at adhered to it until now. With the Internet taking the world into its folds, Internet Service Providers across the world are trying to encash this potent commodity and trying to control the traffic. Karma Healthcare KP-80 Standing Wheelchair is a compact and fully powered wheelchair designed for budget. The front-wheel drive provides agile control for the chair to negotiate various indoors and out. It comes with the innovative seat and wide range of power backrest angle adjustment (80~120 degree).
Nathan Goodyear

Principles of innate and adaptive immunity - Immunobiology - NCBI Bookshelf - 0 views

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    good basic review of the immune system.
Nathan Goodyear

Metabolic management of brain cancer - 0 views

  • Glutamine is a major metabolic fuel for both brain tumor cells and tumor-associated macrophages (TAMs)
  • the malignant phenotype of brain tumor cells that survive radiotherapy is often greater than that of the cells from the original tumor.
  • Conventional chemotherapy has faired little better than radiation therapy for the long-term management of malignant brain cancer
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  • most conventional radiation and brain cancer chemotherapies can enhance glioma energy metabolism and invasive properties, which would contribute to tumor recurrence and reduced patient survival [34].
  • We contend that all cancer regardless of tissue or cellular origin is a disease of abnormal energy metabolism
  • complex disease phenotypes can be managed through self-organizing networks that display system wide dynamics involving oxidative and non-oxidative (substrate level) phosphorylation
  • As long as brain tumors are provided a physiological environment conducive for their energy needs they will survive; when this environment is restricted or abruptly changed they will either grow slower, growth arrest, or perish [8] and [19]
  • New information also suggests that ketones are toxic to some human tumor cells and that ketones and ketogenic diets might restrict availability of glutamine to tumor cells [68], [69] and [70].
  • The success in dealing with environmental stress and disease is therefore dependent on the integrated action of all cells in the organism
  • Tumor cells survive in hypoxic environments not because they have inherited genes making them more fit or adaptable than normal cells, but because they have damaged mitochondria and have thus acquired the ability to derive energy largely through substrate level phosphorylation
  • Cancer cells survive and multiply only in physiological environments that provide fuels (mostly glucose and glutamine) subserving their requirement for substrate level phosphorylation
  • Integrity of the inner mitochondrial membrane is necessary for ketone body metabolism since β-hydroxybutyrate dehydrogenase, which catalyzes the first step in the metabolism of β-OHB to acetoacetate, interacts with cardiolipin and other phospholipids in the inner membrane
  • the mitochondria of many gliomas and most tumors for that matter are dysfunctional
  • Cardiolipin is essential for efficient oxidative energy production and mitochondrial function
  • Any genetic or environmental alteration in the content or composition of cardiolipin will compromise energy production through oxidative phosphorylation
  • The Crabtree effect involves the inhibition of respiration by high levels of glucose
  • the Warburg effect involves elevated glycolysis from impaired oxidative phosphorylation
  • the Crabtree effect can be reversible, the Warburg effect is largely irreversible because its origin is with permanently damaged mitochondria
  • The continued production of lactic acid in the presence of oxygen is the metabolic hallmark of most cancers and is referred to as aerobic glycolysis or the Warburg effect
  • We recently described how the retrograde signaling system could induce changes in oncogenes and tumor suppressor genes to facilitate tumor cell survival following mitochondrial damage [48].
  • In addition to glycolysis, glutamine can also increase ATP production under hypoxic conditions through substrate level phosphorylation in the TCA cycle after its metabolism to α-ketoglutarate
  • mitochondrial lipid abnormalities, which alter electron transport activities, can account in large part for the Warburg effect
  • targeting both glucose and glutamine metabolism could be effective for managing most cancers including brain cancer
  • The bulk of experimental evidence indicates that mitochondria are dysfunctional in tumors and incapable of generating sufficient ATP through oxidative phosphorylation
  • Cardiolipin defects in tumor cells are also associated with reduced activities of several enzymes of the mitochondrial electron transport chain making it unlikely that tumor cells with cardiolipin abnormalities can generate adequate energy through oxidative phosphorylation
  • The Crabtree effect involves the inhibition of respiration by high levels of glucose
  • Warburg effect involves elevated glycolysis from impaired oxidative phosphorylation
  • TCA cycle substrate level phosphorylation could therefore become another source of ATP production in tumor cells with impairments in oxidative phosphorylation
  • Caloric restriction, which lowers glucose and elevates ketone bodies [63] and [64], improves mitochondrial respiratory function and glutathione redox state in normal cells
  • DR naturally inhibits glycolysis and tumor growth by lowering circulating glucose levels, while at the same time, enhancing the health and vitality of normal cells and tissues through ketone body metabolism
  • DR is anti-angiogenic
  • DR also reduces angiogenesis in prostate and breast cancer
  • We suggest that apoptosis resistance arises largely from enhanced substrate level phosphorylation of tumor cells and to the genes associated with elevated glycolysis and glutaminolysis, e.g., c-Myc, Hif-1a, etc, which inhibit apoptosis
  • Modern medicine has not looked favorably on diet therapies for managing complex diseases especially when well-established procedures for acceptable clinical practice are available, regardless of how ineffective these procedures might be in managing the disease
  • More than 60 years of clinical research indicates that such approaches are largely ineffective in extending survival or improving quality of life
  • The process is rooted in the well-established scientific principle that tumor cells are largely dependent on substrate level phosphorylation for their survival and growth
  • Glucose and glutamine drive substrate level phosphorylation
  • targeting the glycolytically active tumor cells that produce pro-cachexia molecules, restricted diet therapies can potentially reduce tumor cachexia
  • It is important to recognize, however, that “more is not better” with respect to the ketogenic diet
  • Blood glucose ranges between 3.0 and 3.5 mM (55–65 mg/dl) and β-OHB ranges between 4 and 7 mM should be effective for tumor management
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    Dr Seyfriend presents his metabolic approach to the treatment of brain cancer.
Nathan Goodyear

Principles of endocrinology - Endocrinology - NCBI Bookshelf - 0 views

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    Everything you wanted to know about hormones and then some.
Nathan Goodyear

Pharmacotherapy of PTSD: Premises, Principles, and Priorities - 0 views

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    Not so interested in the discussion on pharmacotherapy, but the discussing on the neuroendocrinology of PTSD.
Nathan Goodyear

Principles and clinical applications of ... [J Endocrinol Invest. 2011] - PubMed - NCBI - 0 views

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    LC-MS/MS will be the new gold standard in hormone evaluation.
wheelchairindia9

Tricycle Manufacturers - 0 views

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    Tricycles make cycling accessible to all, whatever personal challenges. There are a wide range of disability cycles that suit people with a variety of learning and physical disabilities, as well as health issues. Tricycles have 3 wheels, which means that the rider does not need to be able to balance. This is particularly useful for people with learning disabilities, such as Dyspraxia, and those recovering from illnesses. Tricycles can be fitted with foot plates to make it easier for riders to rotate the pedals and they come in upright or recumbent (horizontal sitting position). For adults and children with balance issues, stabilisers can also be fitted to standard bikes, which makes them more like tricycles. Tricycles come in a variety of accessible styles for people of all abilities including many persons with spinal cord injury disabilities. Tricycles is a great upper body workout and can provide a great sense of freedom for persons with disabilities. While the high cost prevents many from enjoying Tricycles they are steadily growing in popularity. Tricycle Deluxe Double Hand Drive: Frame : Made by E.R.W. Tubes 38.0 mm-16 G. 25.4 mm & 22.22 mm- 18 G. Seat & Back: M S, C.R.C. Sheet. Seat Size 18"x 16" Wheel Size: Wheel Diameter 24"x 1 1/2" Tyre and Tube Standard Company. Parts: Standard Quality. Color: Black Painted. Brake: Front Wheel liver System Drive: Rear Wheel Right Side. Hand powered cycles work along the same principle as standard cycles. The pedals are replaced with handles that also steer, and riders use their arms to push the handles around to drive the chain and wheels. Most hand cycles have 3 wheels, although some have 4 wheels. 4-wheel cycles may have power assistance instead of the rider turning handles,or they may be built for going down hill, in which case gravity powers the bike. As with tricycles, hand cycles can have upright seats or low down recumbent seats. Specialist 'clip on' cycles are also available that can be attached
Nathan Goodyear

Principles of Pharmacokinetics - Holland-Frei Cancer Medicine - NCBI Bookshelf - 0 views

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    good review of pharmacokinetics in cancer.
trungtamnamkhoa

Emla drug 5% - Anti premature ejaculation - 1 views

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    Emala topical 5g With 5% benzocaine. In it, EMLA is an oil-in-water emulsion in which the oil phase is an eutecti mixture of Lidocaine and Prilocaine at a ratio of 1: 1. The hypersensitivity effect of the genitalia thus helps prolong the time of activity in men, used for premature ejaculation and those who want to prolong the sex period. However, the principle of premature ejaculation treatment must be based on the correct and sufficient use of the new dose to bring the highest efficiency to the user.
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