Posts Tagged "hot flashes"

S’more flashes, anyone?

Posted by Liz on Oct 21, 2011 in hot flash, humour | 1 comment

Happy Weekend! Hope it’s Flash-Free!

Needles and symptoms and a pathway, revealed…more on acupuncture

Posted by Liz on Oct 17, 2011 in hot flash, menopause | 0 comments

Click on acupuncture in the tag cloud and you’ll know that I’ve spent a number of years examining and sharing information about important studies on this blog. In some, acupuncture has been shown to alleviate vasomotor symptoms like hot flashes and night sweats, and in others, acupuncture appears to be no better than placebo or sham needles that are placed on accurate points but not actually inserted into the skin. However, I’ve also long argued that by slightly changing the way that we conduct scientific studies in the West and allowing for individualization, observed benefits might be different. Indeed, that’s exactly what researchers have seen with ACUFLASH and you can read more about that trial here.

Less clear that whether or not acupuncture can help symptoms (for the record, I am biased and I believe that over time it can), is HOW it works. The centuries old Chinese medicine paradigm is never so apparent than with acupuncture and although I am not sure why we need to know the ‘how,’ I am fairly certain that until it is revealed, there will be a lot of researchers and health practitioners questioning its validity or utility.

So, this brings me to a wonderful pilot study in the online version of Menopause, exploring that very question: how does acupuncture work on vasomotor symptoms?

In this small trial, 33 perimenopausal and postmenopausal received traditional acupuncture, sham acupuncture or nothing over a period of 12 weeks. The active groups received three treatments per week and all the women reported having at least 7 hot flashes a day. But there’s the rub: the researchers also looked at how traditional acupuncture affected the hypothalamic-pituitary axis (HPA), the part of the body that comprises the hypothalamus and pituitary and adrenal glands, controls digestion, our immune system, mood and emotions, sexuality, and how energy is used and stored. Moreover, this part of the body reacts quite negatively to stress by releasing a hormone known as cortisol. Not surprisingly, women who have very severe vasomotor symptoms tend to produce high levels of cortisol.

What did they learn?

• Most of the benefits, (e.g. reductions in hot flashes) occurred by week five and; hot flash severity and frequency declined by 86% and 78%, respectively in both the real acupuncture and sham acupuncture groups. But while the sham acupuncture group didn’t continue to improve, the real acupuncture group did.
• Likewise, anxiety and depression improved in both of these groups, as did sleep scores.

And the “how?”

It appears, at least from this small study, that acupuncture positively affected levels of cortisol and DHEA, the major steroid secreted by the adrenal glands that affects none other than the body’s production of estrogen. Consequently, if acupuncture helps to control the HPA, and HPA affects vasomotor symptoms, then perhaps scientists have the first clue as to why acupuncture may help certain menopausal symptoms. It also opens up an entirely new avenue for novel strategies to control them.

The bottom line is that there is hope and a new direction that researchers will ideally follow. Ultimately, acupuncture may prove to be even more effective than pharmaceutical strategies for menopausal symptoms and definitely, much safer.

The jury’s still out but it seems a helluva closer to a verdict.

Hot flashes and Japanese herbal medicine: the lowdown on TU-025

Posted by Liz on Aug 1, 2011 in hot flash, Kampo/traditional Japanese medicine | 1 comment

Women who choose to go the alternative route for menopausal hot flashes have few evidenced-based options. Although acupuncture and standardized black cohosh have been shown to be effective in ameliorating hot flashes, others, including red clover and even soy, have been less successful. Consequently, herbal practitioners often turn to Traditional Chinese medicine (TCM) herbal formulations or the lesser known (in the U.S.) Japanese multiherb medicinal formulations known as Kampo. Interestingly, the term Kampo refers to ‘the way of China” and the practice which is several thousand years old is based on TCM.

Kampo is prescribed by over 90% of Japanese gynecologists and is regulated by the Japanese Ministry of Health to insure manufacturing standards and product stability.  One of the most popular Kampo agents for perimenopausal hot flash management is an 1,800 year old formulaton known as “keishibukuryogan” or in the US, as TU-025. Comprised of a combination of cinnamon bark, peony root, peach kernal and mountain bark, it active ingredient remains unknown. Japanese data from both the government and the manufacturer demonstrate a very low incidence of side effects and no estrogenic activity, which means that theoretically, it could be safely used by women who have had breast or gynecologic cancers. Nevertheless, its utility in American women has not been known, at least until now.

In a study published in the August issue of Menopause, 178 postmenopausal women were randomly assigned placebo, 7.5 g/daily TU-025 or 12.5 g/daily TU-025 for 12 weeks. All participants reported 28 or more hot flashes a week, had been in menopause for at least a year, had stopped using hormones for at least 8 weeks if they were already using them, smoked less than 10 cigarettes a day and most were slightly overweight or obese (based on body mass index). None were using antidepressants (which studies have shown may help alleviate hot flashes), nor did they have a history of breast or uterine cancer. While the 7.5 gram daily is the dose taken most often by Japanese women, the researchers upped the dose to 12.5 gm daily to account for a larger sized American woman.

Hot flashes and night sweats. Mind over matter?

Posted by Liz on Jun 20, 2011 in hot flash, nightsweats | 2 comments

[youtube=http://www.youtube.com/watch?v=LH8xbDGv7oY]

Hot flashes and night sweats, oh my! They hit like a ton of bricks when you’re least expecting them and then exit as quickly as they arrived. They affect up to 70% of women and tend to worsen in late perimenopause and in menopause. And while hormone replacement therapy may decrease how bothersome they are and good health diminish frequency and severity, it appears that how well women believe they are controlling their symptoms outplays all of these other factors, so much so that perceived control may actually beneficially affect emotional distress, prevalence and severity of symptoms and how often women engage in behaviors that benefit their health.

Findings of a  new study that’s just been published online in Maturitas run counter to many that came before it, studies that have shown that smoking and body mass index and alcohol consumption, as well as marital status, age, professional status, parity, educational status and income may significantly influence hot flash prevalence, frequency and severity. However, this time, researchers found that among 243 women between the ages of 42 and 60 years, the most important factor was control.

Participants were first asked to assess the intensity and intensity of hot flashes and night sweats on a five point scale (i.e. never to daily to almost every day and not intense to extremely intense). They were also asked to estimate perceived control over their symptoms using a validated rating scale. Finally, menopausal status, i.e. pre-, peri- and post- were assessed. Additionally, common sociodemographic and lifestyle factors shown to influence hot flashes and sweats were accounted for.

Importantly, women who used no medications or used soy and herbal products had higher perceived control over their symptoms than women who used hormone therapy. Moreover, this distinction had nothing to do with how severe their symptoms were as the researchers say that severity was similar among all three.  Additionally, women who drank greater amounts of coffee appeared to perceive their symptoms as less severe than those who drank less. While previous research has found the opposite, i.e. caffeine intake predicts the occurrence of hot flashes, it is possible that the stimulation associated with caffeine might have boosted coping mechanisms and strategies, thereby leading to fewer or less severe symptoms. Still, perceived control ruled the day, leading to a significant beneficial impact on severity of flashes and night sweats. The reason? It’s possible that feeling in control leads to other behavioral changes, such as dressing in many layers to allow for adjustments as the inner temperatures increase, avoiding spicy foods or effectively controlling stress. However, the results also imply that how much control we feel we have strongly influences how we ultimately feel.

Clearly, more research is needed. But when it comes to hot flashes and night sweats, mind over matter may play a strong role.

More on soy? Oh joy!!

Posted by Liz on Apr 15, 2011 in hot flash, nightsweats | 2 comments

A close friend of mine wrote me the other day to tell me about an article she had seen. In it, the author claims that using soy sauce will help to alleviate hot flashes. However, the author neither backs this claim with any evidence or provides information on how much soy sauce you’d need to obtain the minimal level typically associated with some sort of reduction in menopausal symptoms.

Because there’s a ton of bad information floating around the interwebz, I wanted to break it down for you, right here and now. I also encourage you to peruse the archives because I’ve written a ton of posts on soy isoflavones.

Here’s what we know thus far about soy and soy isoflavones:

• Soy isoflavones are plant-based compounds that are believed to mimic the action of natural estrogen in the body. Therefore, researchers have been dissecting and studying the properties of soy for years in order to determine if this alternative to hormone replacement can help alleviate hot flashes and night sweats, and possibly even promote bone health in menopausal women.
• The deeper researchers delve into the properties of soy, the more they are learning. For example, the ratio of the most plentiful soy isoflavones, i.e. daidzein and gensistein, are important, and a metabolite of daidzein called S-equol appears to be the most potent in terms of preventing flashes and sweats.  S-equol  is produced in the gastrointestinal tract however the ability to actually manufacture it depends on the presence of certain microflora. Consequently, only 30% to 60% of individuals are actually able to produce S-equol on their own (although this figure is believed to be higher among Asians and vegetarians).
• Studies that have examined the role of a soy-based diet, mostly among Asian populations, typically focus on four main foods that are rich sources of soy isoflavones: tofu, miso (fermented soybean paste), natto (sticky, fermented soy food rich in vegetable protein) and fried tofu. Soy sauce and soy oil do not contain isoflavones! Therefore, using either in cooking will not prevent hot flashes or night sweats.
• In a more recent review of soy products published in the American Journal of Epidemiology, researchers evaluated the dietary habits of 1,106 Japanese women between the ages of 35 and 64 over six years to determine a possible association with hot flashes or lack thereof. All participants were asked to record what they were eating as well as the serving size; included were nine specific soy products (miso soup, tofu, deep-fried tofu, fried bean curd, dried bean curd, natto, houba miso, soy milk and boiled soybeans).

The findings? There was an inverse association between eating soy and hot flashes – those women eating the greatest amount of soy, i.e. 115.9 grams/day, that contained the greatest amount of isoflavones, i.e. 50.8 grams/day, had the highest amount of protection against developing hot flashes and a 6% lower risk than women who consumed the least amount for developing hot flashes over the course of the study. Moreover, the results were upheld even after researchers accounted for factors such as age, menopausal status and total daily caloric intake. Notably, if soy sauce or oil actually contained isoflavones, an individual would have to consume at least 4 ounces of soy sauce daily to obtain any benefit.

Most importantly, when it comes to soy, even supplements aren’t created equal. If you are going to go that route, speak to a licensed practitioner who specializes in herbal medicine and look for a supplement that notes standardized manufacturing on its label. Simply walking into a drugstore to make a purchase is a sure way to guarantee that skimping on price often means skimping on quality.

There’s a lot more we need to learn about soy before making blanket recommendations. Soy is more complex than researchers originally thought. And a few drops a day? No way!