Summa Technologiae

[Пер Гюнт]

О применении пищевых добавок для различных целей.

В целом табоица информативна, но непонятно, каким боком креатин к бустером тестостерона прилип. Насколько я помню, он, наоборот, увеличивает степень конвертации Т в ДГТ, несколько снижая его концентрации. Но и этот эффект не слишком выражен.

[Д.С.]

каким боком креатин к бустером тестостерона прилип

По некоторым исследования+22%.
Но по другим исследованиям конвертация в дигидротестостерон увеличивалась ещё больше.
Но полюбому, и то и другое в большинстве случаев на пользу.

Скрытый текст:

Does Creatine Boost your Testosterone?If creatine makes you stronger and boosts recovery, does it also increase your testosterone- a hormone crucial for optimal health and performance in both men and women?
In a 2006 study, researchers measured the effects of creatine and creatine plus beta-alanine, a popular muscle enhancer, on metrics of power, strength, body composition, and hormone levels. Scientists recruited 33 male subjects and randomly assigned them to one of three groups. The first group consumed creatine, the second creatine plus beta-alanine, and the third a placebo. All three groups were asked to participate in regular resistance-training as well.
In the subjects that took only the creatine supplement, their testosterone concentrations increased from 20.0 nmol/L to 24.4 nmol/L. This is equivalent to 577 ng/dL to 704 ng/dL 13 This change is statistically significant and represents a 22% increase. No other statistically significant changes were noted in hormone levels in any of the three groups before and after the intervention. However, researchers also noted that the testosterone to cortisol ratio- a key metric of recovery measured in InsideTracker’s Ultimate Plan- increased from 52.4 prior to the intervention to 66.4 after the intervention. 13 The scientists couldn’t explain entirely why these differences and trends were observed

Because research suggests that creatine supplementation increases muscle power, scientists surmised that regular supplementation could increase the ratio of dihydrotestosterone (DHT, a biologically more active androgen) to testosterone.
In 2009, South African researchers recruited 20 college-aged rugby players and assessed the impacts of creatine supplementation on testosterone and DHT levels in male, college-aged rugby players in a double-blind, placebo-controlled crossover study lasting a total of 9 weeks. Researchers divided the subjects into two groups of ten. The first group of ten served as the intervention group and consumed 25 grams/day of creatine along with 25 grams/day of glucose for the first week. Then, for the next two weeks they consumed 5 grams of creatine per day with 25 grams of glucose per day. The second group of ten served as the placebo and consumed 50 grams/day of glucose for one week. Then, they consumed 30 grams of glucose per day for the next six weeks. Both groups were then asked to participate in a 6-week “washout period” where they consumed no supplements.
After seven days of creatine loading, or a further 14 days of regular-dose creatine supplementation, testosterone levels in these subjects did not change. However, levels of the more active form of testosterone, DHT, increased by 56% after 7 days of creatine loading and remained 40% above baseline after 14 days of maintenance. 14 Additionally, the ratio of DHT:T increased by 36% after one week of creatine supplementation and remained elevated by 22% after the maintenance dose. 14 The researchers stated that “creatine supplementation may, in part, act through an increased rate of conversion of testosterone to DHT.” 14 Thus, creatine may not lead to a measurable increase in testosterone levels but instead exert its effects by converting testosterone to a more active form.
Key Takeaways: Research on the link between testosterone and creatine supplementation is conflicting. Some suggests that creatine increases testosterone levels, while other indicates that creatine improves a more active form of testosterone called DHT. More rigorous research needs to be done to evaluate the impact creatine has on the different forms of testosterone.
Recommendations: If undergoing a resistance-training regimen and taking creatine supplements, use InsideTracker to see how creatine affects your testosterone levels.

[alabaychic]

[Д.С.]

10 Symptoms of Gluten Intolerance

More than 55 diseases have been linked to gluten, the protein found in wheat, rye, and barley. It’s estimated that 99% of the people who have either gluten intolerance or celiac disease are never diagnosed.

It is also estimated that as much as 15% of the US population is gluten intolerant. Could you be one of them?

If you have any of the following symptoms it could be a sign that you have gluten intolerance:

0. Digestive issues such as gas, bloating, diarrhea and even constipation. I see the constipation particularly in children after eating gluten.

1. Keratosis Pilaris, (also known as ‘chicken skin’ on the back of your arms). This tends be as a result of a fatty acid deficiency and vitamin A deficiency secondary to fat-malabsorption caused by gluten damaging the gut.

2. Fatigue, brain fog or feeling tired after eating a meal that contains gluten.

3. Diagnosis of an autoimmune disease such as Hashimoto’s thyroiditis, Rheumatoid arthritis, Ulcerative colitis, Lupus, Psoriasis, Scleroderma or Multiple sclerosis.

4. Neurologic symptoms such as dizziness or feeling of being off balance.

5. Hormone imbalances such as PMS, PCOS or unexplained infertility.

6. Migraine headaches.

7. Diagnosis of chronic fatigue or fibromyalgia. These diagnoses simply indicate your conventional doctor cannot pin point the cause of your fatigue or pain.

8. Inflammation, swelling or pain in your joints such as fingers, knees or hips.

9. Mood issues such as anxiety, depression, mood swings and ADD.

[Д.С.]

Why gelatin plus exercise might repair ligaments - Futurity

Желатин, витамин С и упражнения могут восстановить связки.
********

Adding a gelatin supplement to an exercise program might be a way to prevent or repair injuries to ligaments.

To test the idea, researchers enrolled eight health young men in a trial of a gelatin supplement enhanced with vitamin C. The volunteers drank the supplement and had blood taken, and after one hour performed a short (five-minute) bout of high-impact exercise (skipping).

Researchers from the University of California, Davis, and at the Australian Institute of Sport tested the blood for amino acids that could build up the collagen protein that composes tendons, ligaments, and bones. They also tested blood samples for their effect on lab-grown ligaments that stand in for the real thing.

The gelatin supplement increased blood levels of amino acids and markers linked to collagen synthesis, and improved the mechanics of the engineered lab-grown ligaments, they found.

“These data suggest that adding gelatin and vitamin C to an intermittent exercise program could play a beneficial role in injury prevention and tissue repair,” the researchers write in a paper published in the American Journal of Clinical Nutrition.

[vladimirfo]

Why gelatin plus exercise might repair ligaments - Futurity

Желатин - денатурированный коллаген.
Для синтеза коллагена из аминокислот нужен витамин C.
Это пилотное исследование на 8 мужчинах.
Хотя структура самой "бумаги" мне понравилась, исследователям пока нового сказать нечего, но пусть учатся писать четкие исследования)

[Пер Гюнт]

Хотелось бы почитать что-нибудь о влиянии андрогенов на ЦНС и конкретно на дофамин, серотонин, окситоцин, ацетилхолин, вазопрессин и т.д.

[Д.С.]

Баланс тестостерона и окситоцина: границы и союзы. | Врач Андрей Беловешкин о ресурсах здоровья

[Д.С.]

Effects of 24-hour Food Restriction on Plasma Human Growth Hormone, IGF-1, Cortisol and Testosterone Responses in Resistance Exercise



Fig. 1.
Plasma human Growth hormone (hGH) concentrations. Control treatment, CON; 24 hours food restriction treatment, 24-FT. Data are shown as means±SE (n=13). ^* p<0.05 vs. CON; ^a p<0.05 vs. Ex-pre; ^b p<0.05 vs. Ex-post

[NAFL]

Баланс тестостерона и окситоцина: границы и союзы. | Врач Андрей Беловешкин о ресурсах здоровья

Посмотрел ссылки, я бы не доверял тем выводам которые он сделал. Например про когнитивные способности. Приведу известную мне информацию, извиняюсь, что без ссылок. У девушек, больше чем у юношей объем кратковременной памяти (девушки при этом признаются в заинтересованности в эксперименте), но хуже решают задачи на мысленные вращение. При этом доза тестостерона (под язык) позволяет женщинам лучше решать пространственные задачи.

Мозг женщины меняется скорее не под действием окситоцина, а эстрогенов. По окситоцину М и Ж скорее всего равны. Окситоцин в большей мере позволяет формировать некоторые паттерны поведения, но не действует постоянно. В то время как эстрогены за время беременности вырабатываются в большом количестве. Большой выброс окситоцина происходит только во время самих родов.
https://journal.botkin.pro/brainpregnant