November 30th, 2010 by PeterWehrwein in Better Health Network, Health Tips, News, Research
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Vitamin D has been talked about as the vitamin — the one that might help fend off everything from cancer to heart disease to autoimmune disorders, if only we were to get enough of it.
“Whoa!” is the message from a committee of experts assembled by the Institute of Medicine (IOM) to update recommendations for vitamin D (and for calcium).
The IOM committee’s report, released this morning, says evidence for many of the health claims for vitamin D is “inconsistent and/or conflicting or did not demonstrate causality.” The exception is the vitamin’s well-documented (and noncontroversial) benefits on bone growth and maintenance.
The IOM panel’s report also says most North Americans (Canadians as well as Americans) have more than enough vitamin D in their blood to achieve the desired effect on bone. The committee said a blood level of 20 nanograms per milliliter (ng/mL) is sufficient for most people.
The panel set 600 International Units (IU) as the recommended daily intake for children and for adults ages 19 to 70. People ages 71 and older are supposed to get an additional 200 IU, or 800 IU a day.
That’s a fairly sizable increase over the previous recommendations of 200 IU per day through age 50, 400 IU for people ages 51 to 70, and 600 IU for people ages 71 and older. Read more »
*This blog post was originally published at Harvard Health Blog*
November 26th, 2010 by Linda Burke-Galloway, M.D. in Better Health Network, Health Tips, News, Research
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Although the first trimester of pregnancy is sacred, there will be patients who will encounter problems at that time. During the first trimester, the brain and the central nervous system develops from 6 to 10 weeks, a time period commonly known as organogenesis. To minimize the risk of developing birth defects, medications and invasive procedures are usually postponed until the arrival of the second trimester.
A recent article in the October 2010 issue of Ob.Gyn. News reported some disturbing findings: Dental fillings in the first trimester were linked to the development of a cleft palate. A cleft palate is a birth defect that has a slit in the roof of the mouth because it failed to close during the first trimester.
The article by Susan London described a study in Norway where pregnant women had dental filings in the first trimester and their babies subsequently developed cleft palates. Ideally, dental problems should be addressed prior to becoming pregnant, however that is not always an option. Dental problems can occur during pregnancy because of the increased calcium requirements of the fetus as well as hormonal changes of the pregnancy. Read more »
*This blog post was originally published at Dr. Linda Burke-Galloway*
November 21st, 2010 by Peggy Polaneczky, M.D. in Better Health Network, Health Tips, News, Opinion, Research
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Ask any third-year medical student how hormonal contraception prevents pregnancy, and they’ll probably tell you it prevents ovulation. What they won’t tell you is that this effect is variable and dose-dependent, and if we depended on it alone, hormonal contraception would be much less effective.
That’s because of the very important, and in my opinion, much under-appreciated effect of hormonal contraception on cervical mucus.
A Cervical Mucus Primer
Fertile cervical mucus — which forms under the influence of rising estrogen levels in the first half of the menstrual cycle and is maximal around ovulation –- is thin, watery, clear and easy for sperm to traverse.
Non-fertile mucus — which forms after ovulation and also in pregnancy under the influence of progesterone –- is the exact opposite: Thick,tacky, non-distensible and impossible for sperm to penetrate. (It’s not called the mucus plug for nothing.) Read more »
*This blog post was originally published at tbtam*
November 18th, 2010 by Linda Burke-Galloway, M.D. in Better Health Network, Health Tips, Research, True Stories
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As more older women attempt to beat the biological clock and conceive, they are at greater risk for developing birth-related complications. For women over 45, there is less than a 1 percent chance of getting pregnant using their own eggs. Successful pregnancy for women over 45 is nearly always the result of in-vitro fertilization (IVF) and the use of an egg donor.
Researchers at Tel Aviv University reviewed birth records from 2000 to 2008, specifically looking at the records of 177 women who gave birth at the age of 45 and beyond. The majority of the women had IVF and received donor eggs, and 80 percent of the babies were delivered via cesarean section (C-section).
Despite their celebrity, Kelly Presley (age 47), Celine Dion (age 42), and Mariah Carey (age 40), are older pregnant women who are at risk. The premature birth of Celine Dion’s twin sons did not surprise me at all. Women over 35, and especially those over 45 with underlying medical problems, should be treated prior to becoming pregnant. I cannot emphasize this enough. Read more »
*This blog post was originally published at Dr. Linda Burke-Galloway*
November 12th, 2010 by RamonaBatesMD in Better Health Network, News, Opinion, Research
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Shouldn’t it be possible to voice a concern about a medical treatment, procedure, or claim without the fear of retaliation? If the claims are backed by science, then simply addressing my concerns would be enough.
Fear of retaliation silences discussion. Fear of retaliation makes it difficult to do the “right thing” when the public or an individual patient is at risk.
This incidence involves a British plastic surgeon threatened with libel action by the ‘Boob Job’ cream’s manufacturer after she voiced concerns/doubts of its effectiveness. Sense About Science has a great summary of the entire affair: “Plastic surgeon threatened for comment on ‘Boob Job’ cream.” Read more »
*This blog post was originally published at Suture for a Living*
