November 25th, 2008

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Vitamin D: best source is sunlight, treats radiation poisoning

Mercola offers this article:
http://articles.mercola.com/sites/articles/archive/2008/11/25/why-sunlight-is-your-best-source-of-vitamin-d.aspx

He says that a study on people with repeated respiratory infections found that cod liver oil also contains vitamin A, and that vitamin D and A compete with each other metabolically, so if you have too much vitamin A in your vitamin D supplement, you are not getting as much use out of the D. "Vitamin A and vitamin D compete for each other’s function. For example, even the vitamin A in a single serving of liver can impair vitamin D’s rapid intestinal calcium response." Mercola calls the amounts of vitamin A in the supplements "detrimental".

A separate study from the New York City Department of Health and Mental Hygiene suggests that one form of vitamin D (calcitriol, aka 1,25-dihydroxyvitamin D) may be one of your body's main protections against damage from low levels of radiation. Calcitriol is the active form of vitamin D might be an appropriate protective agent before or after a low-level nuclear incident!! Calcitriol is involved in cell cycle regulation, hence affects proliferation, differentiation, encourages apoptosis and autophagy, and inhibits angiogenesis.
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Orthopedics: Elbow Conditions and Exams

LATERAL EPICONDYLITIS
--most common overuse injury of elbow (90% of elbow tendonitis)
--inflam, microscopic tears, fibrosis of the extensor carpi radialis brevis tendon
--"tennis elbow" -- from backhand, mind you
--S/Sx: PAIN: lateral elbow, w/ gripping, resisted wrist ext, forearm supination, ext of mid finger
--pain: gradual onset, intermittent
--pt may report weakness, tenderness
--dt degeneration, tendonosis, periostitis
--at jct of common extensor and lateral epicondyle of humerus
--usu no visible swelling or inflam
--AROM and PROM usu normal
--trigger points in extensors of wrist
--PROGnosis: good with conservative care (3 months or less to good as new)
--Tx: pain control, anti-inflam, rest, avoid aggrav, exercise as tolerated, ice, ultrasound, laser, splint, manip, forearm soft tissue tx, ergonomic changes
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Orthopedics: Wrist Conditions and Exams

CARPAL TUNNEL SYNDROME
--CTS-->median nerve compression neuropathy (pinkie & 1/2 ring finger not involved)
--swelling, inflam, pressure in tunnel
--ETIO: trauma, overuse (flex, ext, gripping, keyboard), constriction (tenosynovitis of flexor tendons, RA, osteoarthritis, ganglion or neuroma) systemic conditions (diabetes, pregnancy, obesity, hypothyroid, renal dz)
--S/Sx: pain in wrist and hand, burning, numnbness and tingling in fingers, weak thumb abduction (thenar atrophy), usu worse at night, mb retrograde pain to elbow/shoulder), "flick sign"=relief by flicking wrist as if shaking down thermometer, often bilateral but greater on one side
--Tx: avoid aggrav, ice/heat, ultrasound, laser, brace, anti-inflam, local injx
--Dx: nerve conduction velocity test 84% true positive, 95% true negative
--Tx: surgical release 80% success
--Dx: Phalen's test, Tinel's sign, weak thumb abduction, thenar atrophy
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Hereditary Diseases now more detectable in utero

http://news.bbc.co.uk/2/hi/health/7742873.stm
A new serum testing technique allows researchers to compare the mothers genes with the child's, and get a better idea if the child will inherit any of several hereditary diseases. In Britain 1/25 people carries the gene for cystic fibrosis. Up until now the only way to test for CF in a fetus was amniocentesis. The new genetic testing can also detect beta thalassemia or sickle cell disease.