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Women with higher testosterone levels show increased physical fitness

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A new study confirms that an increase in testosterone levels in women’s bodies can improve their physical activity. In particular, research published in the British Journal of Sports Medicine confirms that higher levels of this hormone can significantly increase the resistance and ability of young women to walk longer.

The same results also show that testosterone can increase muscle mass and not at the expense of body weight. This research therefore confirms concerns about the participation of athletes with high natural testosterone levels in athletics competitions and in sport in general. In particular, some believe that women with testosterone levels that fall within the range of male levels should not compete with women with normal levels.

According to an International Association of Athletics Federations (IAAF) regulation, in order to compete, these women must reduce testosterone levels to less than 5 nmol per litre of blood in international mid-range competitions, a decision that has been criticised by many parties because they believe that we speak of a natural hormone level and therefore could be regarded as a natural dowry in itself and not as an artificially acquired advantage.

Researchers have tested the effects of increased hormone levels on aerobic performance, especially in women running on a treadmill. They also carried out the same impact tests for anaerobic performance, i.e. physical exercises that require only short energy bursts. The same researchers measured body fat and lean muscle mass at the beginning and end of the 10-week trial period. The women were divided into two groups: One group received a hormone cream, the other group an inactive cream.

The researchers found that in women who had been given testosterone, the training time before reaching the resistance limit increased significantly (21.17 seconds or 8.5%) compared to the control group. There were no significant changes in anaerobic performance or weight variation between the two groups from start to finish of treatment and experiment. However, women who received testosterone cream showed large changes in lean muscle mass compared to women in the control group with values between 923g and 135g.

Although this is a relatively small study with a relatively short study time, according to the researchers themselves1 this study shows that the discussion about whether women with well above average testosterone levels may or may not compete with other women is at least important and should be addressed.

LINKS AND SOURCES

https://medicalxpress.com/news/2019-10-testosterone-boosts-young-women-capacity.html

https://bjsm.bmj.com/content/early/2019/09/26/bjsports-2018-100525

IMAGE CREDIT

https://www.besthealthmag.ca/wp-content/uploads/sites/16/2019/03/group_women_running-1024×768.jpg

Jane Baker

An established and well-respected journalist, Jane worked for The Pueblo Chieftain (chieftain.com) as an editor for many years and holds an undergraduate degree in Molecular Biology from the University of Northern Colorado. In her free time she enjoys motorcycling, hiking and reading. She is largely responsible for assisting with research and writing new stories relating to new medical research.

1387 Berry Street, Saguache Colorado, 81149
719-655-0938
[email protected]
Jane Baker
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Health and Medicine

Diabetes: scientists discover new therapeutic options to limit collateral damage caused by insulin

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A protein that can act as a regulator of blood sugar and lipids under certain conditions has been identified by a group of researchers at the University of Geneva (UNIGE). The protein, called S100A9, could counteract the side effects of insulin administered to diabetics.

The study published in Nature Communications mentions what a new treatment for diabetes and in general a significant improvement in the quality of life of tens of millions of people could be. In fact, millions of people with type 1 and type 2 diabetes have to resort to insulin injections. Overdose can cause hypoglycemia, a drop in blood glucose levels, while underdose can lead to dangerous hyperglycemia.

In experiments on mice, scientists found that the administration of S100A9 to insulin-deficient diabetic rats led to better glucose management and better control of ketones and lipids. They then discovered that this protein appears to work only when there is TLR4, a receptor placed on the membrane of certain cells, including adipocytes and immune system cells.

Now Roberto Coppari, one of the authors of the study together with Giorgio Ramadori, and his team want to understand the function of the protein S100A9. In this context, they are developing a new treatment that combines low doses of insulin and S100A9 to understand whether it is possible to better control glucose and ketones and limit the same negative side effect of insulin.

“We also want to decipher the exact role of TLR4 to offer a therapeutic strategy that achieves the delicate balance between blood sugar, ketones and optimal lipid control,” explains Coppari himself in the press release.

LINKS AND SOURCES

https://www.unige.ch/communication/communiques/en/2019/diabete-des-traitements-de-nouvelle-generation-bientot-disponibles/

https://www.nature.com/articles/s41467-019-11498-x

IMAGE CREDIT

https://www.franciscanhealth.org/sites/default/files/2015/10/20/hero-diabetes-managemetn-tools-and-veggies.jpg

Jane Baker

An established and well-respected journalist, Jane worked for The Pueblo Chieftain (chieftain.com) as an editor for many years and holds an undergraduate degree in Molecular Biology from the University of Northern Colorado. In her free time she enjoys motorcycling, hiking and reading. She is largely responsible for assisting with research and writing new stories relating to new medical research.

1387 Berry Street, Saguache Colorado, 81149
719-655-0938
[email protected]
Jane Baker
Continue Reading

Health and Medicine

Children of mothers who have taken snus during pregnancy show higher blood pressure.

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A research team found that children between the ages of five and six whose mothers had used snus during pregnancy had higher systolic blood pressure. The new study was published in the Journal of the American Heart Association.

Snus is a moist powdered tobacco for oral use that was banned in the European Union as early as 1992 after World Health Organization studies found it to be carcinogenic. However, this tobacco is very popular in some countries, such as Sweden, and is still available in the United States (although it is currently processed by the FDA in that country).

The snus is placed between the gums and the upper lip and essentially provides nicotine. The advantage of using such tobacco would be that it does not include the by-products of burning classic cigarettes. Another advantage is that it is not necessary to spit, as is the case with most common chewing tobacco cards.

This study shows that the intake of nicotine during pregnancy, whether from cigarettes, chewing tobacco or snus, is not safe and can have negative effects on the unborn child, as Felicia Nordenstam, a paediatric cardiologist at the Karolinska Institute University Hospital in Stockholm and lead author of the study, explains.

The researcher analyzed data from children born to 21 women who used only snus during pregnancy and compared it with data from 19 children whose mothers did not consume tobacco products during pregnancy.

Researchers found that systolic blood pressure in children in the first group was 4.2 mmHg higher than in children in the second group.

LINKS AND SOURCES

https://medicalxpress.com/news/2019-10-children-higher-blood-pressure-age.html

https://www.ahajournals.org/doi/10.1161/JAHA.119.012629

IMAGE CREDIT

https://images.newscientist.com/wp-content/uploads/2017/03/14161245/e2d3ay.jpg

Jane Baker

An established and well-respected journalist, Jane worked for The Pueblo Chieftain (chieftain.com) as an editor for many years and holds an undergraduate degree in Molecular Biology from the University of Northern Colorado. In her free time she enjoys motorcycling, hiking and reading. She is largely responsible for assisting with research and writing new stories relating to new medical research.

1387 Berry Street, Saguache Colorado, 81149
719-655-0938
[email protected]
Jane Baker
Continue Reading

Health and Medicine

Pregnant with twins? Here are the weight gains recommended by a researcher

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A new study conducted by researchers at the University of Pittsburgh sets new guidelines for weight gain in pregnant women who expect twins. Unlike non-partners, the guidelines for twin pregnancies are not always as precise, which is why the doctors at the Graduate School of Public Health have decided to remedy the situation.

The researchers who published their study on Obstetrics & Gynecology analyzed statistical data on 27,723 pregnancies and twin births (with two children) between 2003 and 2013. This data was then compared with those of the mother, in particular with height and weight both before pregnancy and at birth.

They then worked out three upper and lower recommended weight gain limits for three types of pregnant twin women: Underweight or normal, overweight or obesity.

According to the results presented in the press release of the study, there was an increased risk of poor birth results if the weight gain was:

  • Less than 31 pounds or more than 60 pounds in underweight and normal-weight women;
  • Less than 24 pounds or more than 62 pounds in overweight women;
  • Less than 14 pounds or more than 57 pounds for obese women.

“We are not saying that an increase within these weight ranges is necessarily better for the health of the mother and her children, but simply that an increase above or below them poses a greater risk of poor health. Women should talk to their doctors to determine safe weight gain for them,” says Lisa Bodnar, lead author of the study and professor at the University of Pittsburgh.

LINKS AND SOURCES

https://www.chp.edu/news/101019-bodnar-twins-maternal-weight

https://insights.ovid.com/crossref?an=00006250-900000000-97570

IMAGE CREDIT

https://www.twins.org.au/twins-research/Blog/twinsartim-D_children_female_MZ_with_pregnat_mum.jpg

Jane Baker

An established and well-respected journalist, Jane worked for The Pueblo Chieftain (chieftain.com) as an editor for many years and holds an undergraduate degree in Molecular Biology from the University of Northern Colorado. In her free time she enjoys motorcycling, hiking and reading. She is largely responsible for assisting with research and writing new stories relating to new medical research.

1387 Berry Street, Saguache Colorado, 81149
719-655-0938
[email protected]
Jane Baker
Continue Reading

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