Rashad. Nearmeen M NM; Al-Sayed. Radwa M RM; Yousef. Mohammed S MS; Saraya. Yasser S YS
The study found that women with polycystic ovary syndrome (PCOS) have higher blood levels of the hormone kisspeptin than women without PCOS, but within the PCOS group, kisspeptin levels drop as body weight and BMI go up. Lower kisspeptin was linked to worse blood sugar, cholesterol, and body‑fat measures, while higher levels were tied to certain PCOS traits like hirsutism and hormone levels.
Varikasuvu. Seshadri Reddy SR; Prasad. V Satya VS; Vamshika. V C VC; Satyanarayana. M V MV; Panga. J...
People with polycystic ovary syndrome (PCOS) tend to have higher levels of the hormone kisspeptin-1 in their blood. The study found that kisspeptin-1 levels are linked to other PCOS‑related markers like AMH, testosterone, and DHEA, and that measuring kisspeptin‑1 could help identify PCOS with fairly good accuracy.
El Tokhy. Omar O; Kopeika. Julia J; El-Toukhy. Tarek T
The paper reviews new ways to stop a dangerous side‑effect of IVF called ovarian hyperstimulation syndrome (OHSS). It highlights that using kisspeptin or a GnRH‑agonist instead of the usual hCG hormone to finish egg maturation, lowering the hCG dose, freezing all embryos and transferring them later, or giving dopamine‑type drugs after egg collection can all cut the risk of OHSS.
Feeding pre‑pubertal Tibetan sheep extra nutrients during the cold season (either concentrate feed or mineral lick blocks) helped them grow faster, increased the number of ovarian follicles, and raised key reproductive hormones. The study also showed that better nutrition turned up the activity of the kisspeptin (KiSS‑1) system in the brain, which in turn boosted the whole reproductive hormone cascade.
This review talks about drugs that mimic or block the hormone GnRH, which controls sex hormone production. It lists many medical reasons these drugs are used, like prostate or breast cancer, fertility issues, and hormone‑related conditions. It also mentions newer compounds like kisspeptin‑10 and neurokinin B that act on the same system and could be fine‑tuned for better results with fewer side effects.
Beltramo. Massimiliano M; Robert. Vincent V; Galibert. Mathieu M; Madinier. Jean-Baptiste JB; Marcea...
Scientists made new kisspeptin‑10‑based molecules that resist breakdown and stay in the blood longer. In sheep, the best of these compounds caused a much longer rise in the hormones that trigger ovulation compared to the natural peptide. This shows the design works, but it’s still an early animal study and not ready for human use.
Wahab. Fazal F; Drummer. Charis C; Schlatt. Stefan S; Behr. Rüdiger R
The study looked at how the brain chemicals kisspeptin, DMXL2, and a hormone‑blocking factor (RFRP) change as baby marmoset monkeys grow up. It found that kisspeptin and DMXL2 levels are low at birth, rise during early childhood, dip before puberty, then go up again at puberty and adulthood. The hormone‑blocking factor spikes just before puberty. This tells us that kisspeptin naturally increases when the reproductive system is maturing, but the research was done in monkeys and didn’t test any treatments in people.
This review explains that a protein called kisspeptin, made by the uterus and placenta, helps early pregnancy steps like embryo implantation, and that messing with its signals can cause infertility. Most of the evidence comes from mice, and the findings don’t always match what happens in humans, so we can’t directly apply it yet.
Jayasena. C N CN; Abbara. A A; Narayanaswamy. S S; Comninos. A N AN; Ratnasabapathy. R R; Bassett. P...
In a small study of healthy men, giving kisspeptin‑10 or kisspeptin‑54 through an IV raised the hormones LH and FSH, but not as strongly as the standard hormone GnRH. Both kisspeptin forms worked about the same, and the effect grew with higher doses.
Kisspeptin-10 is a small protein that helps control the brain's reproductive hormone system. It works with estrogen and leptin to trigger puberty and fertility, and scientists think it could be used for things like fertility testing, birth control, and treating hormone‑driven cancers, but there are no clear dosing or DIY protocols yet.
In a lab dish made from fetal rat brain cells, the short peptide kisspeptin‑10 was shown to boost the production of the hormone‑messenger GnRH, and both kisspeptin and GnRH can increase their own levels. Estrogen (E2) raised kisspeptin but not GnRH. This confirms that kisspeptin can directly stimulate GnRH‑producing neurons, at least in this early‑stage animal model.
The study shows that kisspeptin and its receptor are key players in starting puberty and controlling fertility, and that certain gene mutations can cause early or delayed puberty. It also finds that the hormone leptin, which reflects body fat levels, can turn on kisspeptin in the brain, helping trigger the reproductive hormone cascade. For biohackers, this means body‑fat‑related leptin levels can influence reproductive health, but the paper doesn’t give any direct ways to use kisspeptin as a supplement or protocol.
Hofmann. Tobias T; Elbelt. Ulf U; Haas. Verena V; Ahnis. Anne A; Klapp. Burghard F BF; Rose. Matthia...
In a small study of women with anorexia nervosa, higher blood levels of the hormone kisspeptin were linked to fewer daily steps, while higher ghrelin levels were linked to more steps. Other hormones studied didn’t show a clear connection to activity.
Skorupskaite. Karolina K; George. Jyothis T JT; Veldhuis. Johannes D JD; Millar. Robert P RP; Anders...
In healthy women, blocking the neurokinin‑3 receptor (NK3R) lowers the natural pulse of the hormone LH, while a short infusion of the peptide kisspeptin‑10 can still boost LH even when estrogen is trying to suppress it. The LH rise lasts beyond the infusion, and the interaction shows that neurokinin B works upstream of kisspeptin in controlling estrogen feedback.
Kisspeptin‑10, a peptide that’s being studied for various roles, was found to slow down blood‑vessel growth and make endothelial cells act old and stop dividing. In rats with blocked blood flow, it reduced recovery, and in human vein cells it blocked tube formation and caused senescence markers to rise. A drug that blocks Rho‑kinase could partly reverse these bad effects.
Schwetz. Tara A TA; Reissaus. Christopher A CA; Piston. David W DW
The study shows that kisspeptin‑10 (KP) can boost insulin release from pancreatic beta cells in mice, but it does so by changing the cells' metabolism rather than by the usual calcium signal that most insulin‑boosting drugs use. GLP‑1 works through a different pathway that involves a G‑protein alpha subunit. These two peptides act via distinct mechanisms, and blocking the G‑protein beta‑gamma part stops KP’s effect but not GLP‑1’s.
Xu. Xijin X; Chiung. Yin Mei YM; Lu. Fangfang F; Qiu. Shaoshan S; Ji. Minhui M; Huo. Xia X
The study found that pregnant women exposed to cadmium, BPA, and PCBs had higher levels of the KISS1 gene (which makes the kisspeptin peptide) in their placentas, and this was linked to lower birth weight. The toxic chemicals also raised leptin signals, but only BPA was tied to those changes. In short, environmental pollutants can boost kisspeptin production in the womb, which may affect growth.
The paper explains that cancer cells often avoid using their mitochondria for energy (the Warburg effect) so they produce less harmful reactive oxygen species (ROS) and become more resistant to a type of cell death that stops metastasis. Forcing cancer cells to burn glucose in the mitochondria raises ROS, making them vulnerable again. The peptide KISS1 (kisspeptin) is mentioned as a natural factor that can push cells toward mitochondrial metabolism, potentially suppressing spread of tumors.
Liu. Zhongfa Z; Ren. Chen C; Jones. William W; Chen. Ping P; Seminara. Stephanie B SB; Chan. Yee-Min...
The study shows that kisspeptin-10, a short hormone fragment that can boost reproductive hormones, breaks down very quickly in the blood of rats—only a few minutes at room temperature and disappears within half an hour after an injection. This means it’s hard to keep active long enough to have a lasting effect without special delivery methods.
Scientists made a DNA vaccine that teaches a sheep's immune system to attack the KISS1 protein, which normally helps start puberty and keep fertility normal. The vaccinated lambs made strong anti‑KISS1 antibodies, had lower testosterone, smaller testes, and showed less sexual behavior compared to untreated lambs.