If you want to obtain anything other than trivial amounts of milk from animals like dairy cattle, you have to stimulate oxytocin release because something like 80% of the milk is available only after ejection, and milk ejection requires oxytocin. Watch someone milk a cow, even with a machine, and what you'll see is that prior to milking, the teats and lower udder are washed gently - this tactile stimulation leads to oxytocin release and milk ejection.
There have been encouraging results for the use of Tβ4 as a topical gel to treat venous stasis ulcers, a type of wound that develops on the lower leg of patients with chronic vascular disease. Two other reports indicated that Tβ4, formulated in eye-drops, may enhance corneal wound healing in diabetic patients, and improve ocular discomfort. These are the most advanced trials to date. As of yet, despite promising animal models, there has been no significant study exploring the efficacy of intravenous Tβ4 injections in treating ischemic heart injury.
20 patients (nine from the 5-HTP group and 11 from the Placebo group) completed the study. Brain tryptophan availability in diabetic patients was significantly reduced when compared to a group of healthy controls. Patients receiving 5-HTP significantly decreased their daily energy intake, by reducing carbohydrate and fat intake, and reduced their body weight.”
In women, oxytocin is responsible for signaling contractions of the womb during labor. The hormone stimulates the uterine muscles to contract, so labor begins. It also increases the production of prostaglandins, which move labor along and increases the contractions even more. Because of this effect, synthetic oxytocin (pitocin) is sometimes used to induce a woman to start labor if she cannot start naturally, or it can be given to make contractions stronger if a woman's labor is slowing.
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In the male mammal, the small peptide hormone oxytocin is produced in similar quantities within the hypothalamo-pituitary magnocellular system as in the female, yet for the male little is known about the physiology associated with this hormone. The present review summarizes what is known about the function of oxytocin in the male mammal and tries to take account of both central and systemic effects, and those linked with a local production of oxytocin within the male reproductive organs. In several species a pulse of systemic oxytocin, presumably of hypothalamic origin, appears to be associated with ejaculation. The systemic hormone could act peripherally stimulating smooth muscle cells of the male reproductive tract, but could also reflect central effects in the brain modulating sexual behaviour. In addition to systemic oxytocin, the peptide is also made locally within the testis, and possibly also the epididymis and prostate. In the former tissue it appears to have an autocrine/paracrine role modulating steroid metabolism, but may in addition be involved in contractility of the seminiferous tubules. However, the latter function may involve the mediacy of Sertoli cells which under some circumstances can also exhibit the components of a local oxytocin system. In the prostate of the rat and the dog oxytocin is linked again to steroid metabolism and may also act as a growth regulator. Finally, oxytocin in seminal fluid is discussed and its possible role in respect to the fate of the semen following ejaculation.
When practicing deep breathing, focus on a calmer state of mind as you distract yourself from overwhelming thoughts and sensations. Sit in a quiet area and practice the following: Take a slow, deep breath through your nose, allowing both your stomach and chest to rise. Once your stomach is fully expanded, breathe out through your mouth, just as slowly as when you were breathing in.
Don't be surprised. A lot of people haven't heard of Melanotan. Melanotan is a tanning peptide that stimulates the production of melanin in the body to foster a deep, natural tan. This is the body's way of protecting itself from too much sun exposure by increasing the level of melanin in the body. Melanin is your body's natural response to UV damage. The end result is a darkening of the skin.
A: 5-HTP is classified as a dietary supplement. Because dietary supplements have not been thoroughly studied in the clinical setting, possible side effects and interactions with other drugs are not well-known. Also, because herbs and supplements are not strictly regulated by the U.S. Food and Drug Administration (FDA), these products are not required to be tested for effectiveness, purity, or safety. In general, dietary supplements should only be taken under the supervision of your health care provider. For more specific information, consult with your pharmacist about the potential for drug interactions based on your specific condition and current medications, particularly before taking any action. When your doctor prescribes a new medication, be sure to discuss all your prescription and over-the-counter drugs, including dietary supplements, vitamins, botanicals, minerals, and herbals, as well as the foods you eat. Always keep a current list of the drugs and supplements you take and review it with your health care providers and your pharmacist. If possible, use one pharmacy for all your prescription medications and over-the-counter products. This allows your pharmacist to keep a complete record of all your prescription drugs and to advise you about drug interactions and side effects. For more specific information, consult with your doctor or pharmacist for guidance based on your health status and current medications, particularly before taking any action. Jen Marsico, RPh
The combination of supplemental 5-HTP and a dopamine decarboxylase inhibitor is also thought to reduce the risk for cardiovascular complications, as excess serum (but not neural) serotonin is associated with heart valve disease in rats. Due to the accumulation of 5-HTP in neural tissue following the combination it is plausible to assume a reduction in systemic serotonin; this has not been demonstrated yet, however.
In a landmark 1979 study3, Cort Pedersen and Arthur Prange at the University of North Carolina in Chapel Hill showed that giving oxytocin to virgin rats could trigger maternal behaviours: the animals would build nests, lick or crouch over unfamiliar pups and even return lost pups to the nest. Researchers went on to show that oxytocin signalling in the brains of prairie voles (Microtus ochrogaster) helps the animals to form lifelong pair bonds4 — a rarity among mammals. In 2012, researchers even found a version of oxytocin in the tiny roundworm Caenorhabditis elegans, where it helps the animals find and recognize mates5.
Naturalistic studies like ours can help unravel the evolutionary history and function of these hormones. Basically, the fact that hormone mechanisms have been tweaked during evolution suggests that the behaviors they promote have provided fitness benefits in the past. In this case, hunting and sharing meat must have increased men’s reproductive success.
Do I have to diet? Studies show that 5-HTP enhances weight loss even if you continue eating your normal foods. Without a diet, you stand to lose about a pound a week; many folks eventually drop 15 pounds or more without dieting. Of course, taking 5-HTP to lose weight works by lowering caloric intake — and the more calories you cut, the more you’ll lose. So if you want to maximize results, try tweaking your diet at the two-week mark, when 5-HTP will have fully kicked in, diminishing hunger and carb cravings. Below, we’ve got a version of the diet used in one university study that helped 5-HTP takers lose several times more weight than folks getting a placebo.
In 19 obese females given either placebo or 8mg/kg (weight not actually given, only BMI between 30-40 for women) daily for 5 weeks without any concurrent dietary recommendations, 5-HTP treatment was associated with a decrease in appetite and food intake (resulting in weight loss) without significantly affecting mood state. This study noted that food intake was reduced from an average of 2,903kcal to 1,819kcal (62% of baseline) while placebo only reduced calories to 80%, and the 0.5kg weight loss in placebo was outperformed by a near 1.5kg loss in 5-HTP. These weight loss effects have been noted with 750mg 5-HTP over 2 weeks in overweight diabetics and over 12 weeks in obese persons given 900mg 5-HTP daily (58% of baseline intake); this latter study had a 6 week trial without a diet (in which significant weight loss was only noted at week 6) followed up by coadministration with a diet where weight loss proceeded to reach an additional 3.3kg over the subsequent 6 weeks; this latter study is duplicated in Medline.
At SelfHacked, it’s our goal to offer our readers all the tools possible to get optimally healthy. When I was struggling with chronic health issues I felt stuck because I didn’t have any tools to help me get better. I had to spend literally thousands of hours trying to read through studies on pubmed to figure out how the body worked and how to fix it.
A: 5-HTP stands for 5-hydroxytryptophan. 5-HTP is classified as a dietary supplement; it is made from the seeds of an African plant, Griffonia simplicfolia. 5-HTP is a metabolite (a metabolic by-product) of the amino acid tryptophan, and it is converted by the body into serotonin, which acts in the brain to sooth a person's mind and comfort one from stress and worry. People are using 5-HTP for a variety of conditions, including weight loss, depression, anxiety, PMS, fibromyalgia, eating disorders, obsessive-compulsive disorder (OCD), and headaches. 5-hydroxytryptophan has not been evaluated by the FDA for safety, effectiveness, or purity. One should follow the dosage recommendations on the particular packages of 5-HTP they purchase. According to one researcher, the suggested dosage range of 5-HTP is between 50 mg and 1,200 mg per day, with the usual range being 100 to 600mg. It is always a good idea to check with one
As shown in Figure 1, thymic hormones also modulate the production of hypothalamus pituitary hormones and neuropeptides. Initial experiments revealed that neonatal thymectomy promotes a decrease in the number of secretory granules in acidophic cells of the adenopituitary . In the same vein, athymic nude mice display low levels of various pituitary hormones, such as PRL, GH, LH and FSH . With regard to thymic peptides, thymosin beta-4, when perfused intraventricularly, stimulates LH and LHRH secretion . Similar results were obtained with another thymic peptide, thymulin, in perfused or fragmented pituitary preparations . The administration of thymopoietin (another chemically-defined thymic hormone) in children with Hodgkin’s disease increased GH and cortisol serum levels . Moreover, thymopentin (the synthetic biologically active peptide of thymopoietin) enhances in vitro the production of ACTH and beta-endorphin . In addition, thymulin exhibits an in vitro stimulatory effect on perfused rat pituitaries, enhancing PRL, GH, TSH and LH release . Using short-term cultures of pituitary fragments, an increase in ACTH secretion occurs after in vitro thymulin addition, with no changes in GH levels and significant reductions in PRL release . A further thymosin peptide was recently isolated with the task in stimulating IL-6 release from rat glioma cells . By contrast, thymosin alpha-1 is apparently able to down regulate TSH, ACTH and PRL secretion in vivo with no modifications on GH levels . These inhibitory effects seem to occur through hypothalamic pathways. Indeed, the production of the corresponding releasing hormones by hypothalamic neurones decreased after in vitro addition of thymosin alpha-1 in medial basal hypothalamic fragments .
In some studies that record appetite suppression with 5-HTP supplementation, nausea appears to also be reported at higher freqencies than placebo, although some interventions note this as the only relevant side effect. Short term studies tend to note that nausea persists throughout the study period while those expanding beyond three weeks note that reports of nausea tend to decline at this time point.
Outside the brain, oxytocin-containing cells have been identified in several diverse tissues, including in females in the corpus luteum and the placenta; in males in the testicles' interstitial cells of Leydig; and in both sexes in the retina, the adrenal medulla, the thymus and the pancreas. The finding of significant amounts of this classically "neurohypophysial" hormone outside the central nervous system raises many questions regarding its possible importance in these different tissues.
5-HTP works in the brain and central nervous system by increasing the production of the chemical serotonin. Serotonin can affect sleep, appetite, temperature, sexual behavior, and pain sensation. Since 5-HTP increases the synthesis of serotonin, it is used for several diseases where serotonin is believed to play an important role including depression, insomnia, obesity, and many other conditions.