Low oxytocin levels have been linked to autism and autistic spectrum disorders (e.g. Asperger syndrome) – a key element of these disorders being poor social functioning. Some scientists believe oxytocin could be used to treat these disorders. In addition, low oxytocin has been linked to depressive symptoms and it has been proposed as a treatment for depressive disorders. However, there is not enough evidence at present to support its use for any of these conditions.

Ultimately, this lack of literature on the drug best serves to illustrate the recklessness of Stephen Dank in committing to something so experimental in nature. Perhaps he was privy to anecdotal evidence the rest of us weren’t. The drug has been used by amateur athletes and bodybuilders, and reportedly in the equine industry. Nevertheless, any benefits are unsubstantiated, which lends to an exasperation shared by supporters as to why Dank would risk so much for a substance that potentially offers no advantage at all. As a supporter, I would have much preferred a drug that allowed us to hit a target inside 50.
Recent preclinical studies by us and others have revealed that endogenous neurorestoration is present after TBI, including neurogenesis, axonal sprouting, synaptogenesis, and angiogenesis, which may contribute to the spontaneous functional recovery.13-18 In addition, treatments that promote these neurorestorative processes have been demonstrated to improve functional recovery after brain injury.19,20 However, clinical trials in TBI have primarily targeted neuroprotection, and trials directed specifically at neurorestoration have not been conducted. The essential difference between neuroprotective and neurorestorative treatments is that the former target the lesion that is still not irreversibly injured and the latter treat the intact tissue.19 Thus, neurorestorative treatments can be made available for a larger number of TBI patients.
There is one glaring problem, however: the supplements come with a disclaimer that recommends not taking them for more than three months. Most of the information out there on 5-HTP is anecdotal, and most of them are stories of it helping people, rather than hard facts about its scientific properties. I approached neurologists, psychologists and experimental doctors about 5-HTP, and many responses were strange. Not many people were willing to speak about it, saying they weren't qualified or hadn't read the relevant material, but there isn't much material to speak of. The main source of legitimate scientific evidence came from the University of Maryland Medical Center website, who stated that 5-HTP may work as well as certain antidepressant drugs to treat people with mild-to-moderate depression. But all the studies that support that statement were done in the 1980s and 1990s. I wanted to know if 5-HTP was a realistic alternative to SSRIs. Could I stay on 5-HTP forever, basking in its natural glory?
Though it may be unlikely to form part of any official psychiatric programme in the UK, Phil Cowen, Professor of Psychopharmacology at Oxford University, admitted that there are various groups for whom it could be helpful. "About half of people with severe depression never see a doctor anyway, so it's reasonable to think it's fine for them to treat themselves with something like a supplement. Perhaps if you had mild symptoms, a smaller dose would be helpful. I'd also prefer to prescribe things like exercise or computer-based CBT if it's that stage, though. But depression and anxiety is very different between people, that's important to keep in mind. No treatment is the same for anyone."

I have bee suffering from severe symptoms of post concussion syndrome for several.months after a car accident. The use of TB500 has been the only trratment ease my symptoms and give me my life back. I ceased use last week after 3 weeks and had reoccuring concussion symptoms. As such? I recommenced injections as of last night. Have you read much about the impact of TB500 on brain injury as I’d love to know if more prolonged use would have a permanent impact/remedy for me? Thanks for your time and interest.
Both sexes secrete oxytocin - what about its role in males? Males synthesize oxytocin in the same regions of the hypothalamus as in females, and also within the testes and perhaps other reproductive tissues. Pulses of oxytocin can be detected during ejaculation. Current evidence suggests that oxytocin is involved in facilitating sperm transport within the male reproductive system and perhaps also in the female, due to its presence in seminal fluid. It may also have effects on some aspects of male sexual behavior.
The pore-forming subunit of the cardiac sodium channel Nav1.5 encoded by SCN5A is a critical determinant of myocardial excitability and conduction. Loss-of-function mutations in SCN5A can clinically manifest as progressive cardiac conduction disorders or as arrhythmic syndromes, such as Brugada syndrome. In addition to electrophysiological dysfunction, SCN5A mutations are also associated with myocardial fibrosis manifesting as global cardiomyopathy. In a 10-year old child exhibiting Brugada syndrome, the mutation SCN5AE555X was discovered. Therefore, cardiac sodium channelopathy pig models were generated by homologous recombination in the genetic background of outbred Yucatan minipigs via SCNT exhibiting the orthologous porcine heterozygous mutation SCN5AE558X. The heterozygous mutant animals were viable and fertile, and showed no sudden death over a 2-year monitoring period. They showed reduced SCN5A protein expression, which resulted in diminished total sodium conductance. The heterozygous mutant hearts showed slowed conduction and increased susceptibility for ventricular arrhythmias in the absence of structural defects of the myocardium or specialized conduction system. In total, a novel animal model was established for understanding the mechanisms linking sodium channel dysfunction to cardiac pathophysiology (Park et al., 2015b).
“Further analysis by gender revealed that females in the 5-HTP group had a significantly lower panic rate and intensity of cognitive symptoms whereas, in males, the effect of 5-HTP was limited to lowering the intensity of somatic panic symptoms. Thus, an increased availability of 5-HT may have a gender-dependent protective effect in CCK-4-induced panic.”

Evidence for this role of oxytocin come from two types of experiments. First, infusion of oxytocin into the ventricles of the brain of virgin rats or non-pregnant sheep rapidly induces maternal behavior. Second, administration into the brain of antibodies that neutralize oxytocin or of oxytocin antagonists will prevent mother rats from accepting their pups. Other studies support the contention that this behavioral effect of oxytocin is broadly applicable among mammals.
Robert Love, a urologist in Dallas, understands why there is such back-channel demand for a product like Melanotan II. "People sometimes want to handle performance issues on their own, without a physician involved, either because they are embarrassed or because they may be uninsured or lack adequate insurance," he told Motherboard. "Handling things this way is not advisable. We have prescription drugs that address erectile dysfunction issues. And although this isn't my area, there are alternative ways of getting suntans—tanning beds, spray tans—though of course extended outdoor sun exposure should be avoided if possible."
But Carter and other scientists are concerned by reports from the physicians and parents of children with autism spectrum disorder who say that they are already using oxytocin off-label — before it has been thoroughly tested. “We do not understand how the hormone works yet, or have enough information about what happens when it's given repeatedly,” Carter says. “This is not a molecule that people should be self-administering or playing with.”
People are using 5-HTP for absolutely everything from sleep disorders to OCD symptoms. After asking people in mental health Facebook groups whether they used it and why, I was inundated with responses. Sach Tennant, from London, takes it for her PMDD (premenstrual dysphoric disorder). "I only take it when I feel low and it only takes one hour to feel calm," she told me. "This month I only needed one to feel better. I don't get the zombie antidepressant feeling – you still have your emotions. Sleep is good on it. I used to have an inner voice that was male and used to bully me during PMT time. Noises seemed too loud, even like somebody eating a bag of crisps. Topping up with 5-HTP has stopped all this."
When we asked a group of readers to test out 5-HTP to lose weight, they ate unlimited portions of healthy food and still shed up to five pounds in a week. We also talked to women who’d been using 5-HTP long term. Heather Miars started taking 5-HTP for her mood at Dr. Bhatia’s urging. “I was finally able to go off prescription antidepressants and lose 15 pounds!” recalls the 45-year-old mom. Meanwhile, Audra Holmes tried 5-HTP after developing “mood swings so wild, I was giving people whiplash,” she jokes. On 5-HTP, she says: “I didn’t have the highs and lows. I could suddenly get through the day without naps or comfort food!” She shed 50 pounds in 16 weeks. Wish you could have the same kind of success with an easy way to lose weight? As Dr. Oz put it: “5-HTP may be your pre-meal must-have!”
Secretion of oxytocin from the neurosecretory nerve endings is regulated by the electrical activity of the oxytocin cells in the hypothalamus. These cells generate action potentials that propagate down axons to the nerve endings in the pituitary; the endings contain large numbers of oxytocin-containing vesicles, which are released by exocytosis when the nerve terminals are depolarised.

Oxytocin production is controlled by a positive feedback mechanism. This mechanism allows the release of the oxytocin hormone when a trigger occurs. The hormone then causes an action in the body, such as the letdown of milk or the start of labor contractions, which signals more production of oxytocin. The feedback cycle continues until the action, such as childbirth or feeding the baby, is complete.
Provide a record of any correspondence between ASADA staff and the World Anti-Doping Authority containing the keywords:  "Thymosin", "Thymosin Beta 4", "TB-500", "TB500", "TB4" or "Thymomodulin" between June 2011 and September 2013. Provide audit logs showing the date upon which Thymosin Beta 4 was published as a banned substance on the check your substances website. Provide a log of all receipts (provided online or by telephone) given to athletes in response to requests containing the keywords "Thymosin", "Thymosin Beta 4", "TB-500", "TB500", "TB4" or "Thymomodulin" between June 2011 and September 2013.

Sexual activity: The relationship between oxytocin and human sexual response is unclear. At least two uncontrolled studies have found increases in plasma oxytocin at orgasm – in both men and women.[103][104] Plasma oxytocin levels are notably increased around the time of self-stimulated orgasm and are still higher than baseline when measured five minutes after self arousal.[103] The authors of one of these studies speculated that oxytocin's effects on muscle contractibility may facilitate sperm and egg transport.[103]
Potential side effects of 5-HTP include heartburn, stomach pain, nausea, vomiting, diarrhea, drowsiness, sexual problems, vivid dreams or nightmares, and muscle problems.[19] Because 5-HTP has not been thoroughly studied in a clinical setting, possible side effects and interactions with other drugs are not well known. According to the US National Institute of Health TOXNET, 5-HTP has not been associated with serotonin syndrome or any serious adverse events in humans.[20] Across multiple studies, 5-HTP also been reported to not cause any noticeable hematological or cardiovascular changes.[21] 5-HTP also has not been associated with eosinophilia.[22]