Category Archives: Uncategorized

Consensus Statement on Hormone Replacement Therapy for Menopausal Symptoms

Hormone therapy after onset of menopause is a complex issue. A couple decades ago it was widely accepted as a way to suppress symptoms and side effects of menopause. Subsequently, we had fears that it may be linked with breast cancer or cardiovascular disease, with potential to shorten life span.

An international group of professional societies has published some guidelines recently:

The consensus recommendations included the following, as listed at MedPageToday:

  • Among women younger than 60 or within 10 years after menopause, estrogen-alone HRT at standard doses “may decrease coronary heart disease and all-cause mortality.” Mortality benefits of estrogen plus progestogen in this group are less clear with no increase or decrease in cardiovascular risk.
  • For women whose only menopause symptom is vaginal dryness or discomfort during intercourse, low-dose topical estrogen is preferred.
  • Estrogen-only HRT is preferred in women after hysterectomy; other women should receive estrogen plus progestogen.
  • Venous thromboembolism and ischemic stroke risk increases with oral HRT but the absolute risk remains low in women younger than 60. Such risks may be smaller with transdermal therapy.
  • HRT is not recommended in breast cancer survivors.
  • Custom-compounded “bioidentical” hormone therapy is not recommended.

Read more details at MedPageToday.

Gwyneth Paltrow Apparently Has Her Kids on a Low-Carb Diet

…according to Joanna Blythman.  Some dietitians are upset.  Blythman writes:

Of course, the processed food industry works ceaselessly to convince us that we must eat highly refined starchy foods, such as breakfast cereals and white bread, trumpeting that they give us energy. But all food gives us energy. Contrary to what we have been led to believe, there is no dietary “need” to eat starchy carbohydrates at all.

I agree with that last statement.  That’s how a healthy adult can live two months without any food whatsoever: any carbohydrate we need (glucose) can be made from our stores of protein and fat.

Does a Low-Carb High-Fat Diet Impair Performance of High-Level Endurance Athletes?

…Dr. Jeff Volek would probably say no. On the other hand, personal  trainer Alan Aragon says yes.  Read about their recent debate at Alan’s blog, they you decide.

Here’s and excerpt from an invited editorial at Journal of Applied Physiology:

“…it seems that we are near to closing the door on one application of this dietary protocol [high-fat, low-carb eating (aka “fat adaptation”) for optimal sports performance]. Scientists may remain interested in the body’s response to different dietary stimuli and may hunt for the mechanisms that underpin the observed changes in metabolism and function. However, those at the coal-face of sports nutrition can delete fat loading and high-fat diets from their list of genuine ergogenic aids for conventional endurance and ultra-endurance sports.”

 

If You’re a Fan of Brave Maverick Doctor Stanislaw Burzynski

…please read this post at Science-Based Medicine.  You may change your mind.  I’m surprised the Texas Medical Board hasn’t been able to rein him in.

Feds Spend $1.5 Million to Study Why Lesbians Are Fat

For every dollar spent on this, we borrow 40¢ that will have to be paid back by the taxpayers.  This is so crazy, I question whether the story is even accurate.  A snippet:

The National Institutes of Health (NIH) has awarded $1.5 million to study biological and social factors for why “three-quarters” of lesbians are obese and why gay males are not, calling it an issue of “high public-health significance.”

You Career Women, If You Want Babies, Better Not Put It Off Too Long

See this graph on age-related fertility at Mangan’s Breviary.  To both have a busy career and raise babies, I wonder if it’s best to have the babies in early adulthood, putting off career moves, if necessary, until later.

Pressuring Your Doctor For a Z-Pak May Kill You

…if she prescribes it and doesn’t know you have:

  • low blood levels of magnesium or potassium
  • heart rate below 60, or
  • QT prolongation

Details are at MedPageToday.

Remember, virus infections don’t respond to antibiotics that suppress bacterial infections.  Bronchitis, for example, is often a viral infection.  Sinusitis usually gets better without antibiotics.

Your Expensive Heart Drug May Be a Waste of Money

…according to an article at MedPageToday.  Specific brands of extended-release niacin and fibrates are mentioned, among others.  I particularly like this quote of Dr. James Stein:

“So at least $4.5 billion was spent on drugs with uncertain benefit and known risks,” Stein said. “I’d much rather these patients focus on exercising and eating a healthy, Mediterranean-based diet, which has been proved to reduce heart attacks and strokes, than spending money on these agents.”

It’s a good idea to talk to the prescribing physician before stopping any of your drugs. 

Does Diet Affect Age-Related Memory Loss and Dementia Risk?

dementia, memory loss, Mediterranean diet, low-carb diet, glycemic index, dementia memory loss

Don’t wait to take action until it’s too late

High blood insulin levels and insulin resistance promote age-related degeneration of the brain, leading to memory loss and dementia according to Robert Krikorian, Ph.D.  He’s a professor in the Department of Psychiatry and Behavioral Neuroscience, University of Cincinnati Academic Health Center.  He has an article in a recent issue of Current Psychiatry – Online.

Proper insulin signaling in the brain is important for healthy functioning of our brains’ memory centers.  This signaling breaks down in the setting of insulin resistance and the associated high insulin levels.  Dr. Krikorian makes much of the fact that high insulin levels and insulin resistance are closely tied to obesity.  He writes that:

Waist circumference of ≥100 cm (39 inches) is a sensitive, specific, and independent predictor of hyperinsulinemia for men and women and a stronger predictor than body mass index, waist-to-hip ratio, and other measures of body fat.

Take-Home Points

Dr. Krikorian thinks that dietary approaches to the prevention of dementia are effective yet underutilized.  He mentions reduction of insulin levels by restricting calories or a ketogenic diet: they’ve been linked with improved memory in middle-aged and older adults.

Dr. K suggests the following measures to prevent dementia and memory loss:

  • eliminate high-glycemic foods like processed carbohydrates and sweets
  • replace high-glycemic foods with fruits and vegetables (the higher polyphenol intake may help by itself)
  • certain polyphenols, such as those found in berries, may be particularly helpful in improving brain metabolic function
  • keep your waist size under 39 inches, or aim for that if you’re overweight

I must mention that many, perhaps most, dementia experts are not as confident  as Dr. Krikorian that these dietary changes are effective.  I think they are, to a degree.

The Mediterranean diet is high in fruits and vegetables and relatively low-glycemic.  It’s usually mentioned by experts as the diet that may prevent dementia and slow its progression.

Read the full article.

I’ve written before about how blood sugars in the upper normal range are linked to brain degeneration.  Dr. Krikorian’s recommendations would tend to keep blood sugar levels in the lower end of the normal range.

Steve Parker, M.D.

PS: Speaking of dementia and ketogenic, have you ever heard of the Ketogenic Mediterranean Diet?  (Free condensed version here.)

Do You Know How To Perfectly Poach an Egg?

I don’t – never even tried.  Darya Pino found a video showing how to do it with a fine mesh strainer.