Pałasz. Artur A; Janas-Kozik. Małgorzata M; Borrow. Amanda A; Arias-Carrión. Oscar...
The paper reviews early research showing that kisspeptin and a few other brain peptides might influence anxiety and eating disorders like anorexia. It notes that these peptides can affect stress responses and how much we eat, and that their blood levels differ between men and women in people with anxiety or anorexia. However, the work is still mostly basic science and does not give concrete ways to use kisspeptin right now.
Kołodziejski. P A PA; Pruszyńska-Oszmałek. E E; Korek. E E; Sassek. M M; Szczepank...
In women, the hormones spexin and kisspeptin are lower in those who are obese, and both hormones are linked to better insulin sensitivity and healthier hormone profiles. Higher levels of these peptides go hand‑in‑hand with lower body‑mass index, better insulin‑resistance scores, and more of the “good” hormones that help control blood sugar and appetite.
Pruszyńska-Oszmałek. Ewa E; Kołodziejski. Paweł A PA; Sassek. Maciej M; Sliw...
Researchers found that kisspeptin-10, a small protein, is made by fat cells and can slow down their growth, push them to break down fat, and change how they handle sugar. In lab tests on mouse cells and rat fat tissue, it reduced the signals that make new fat cells, increased enzymes that burn fat, and altered hormone release, but these results are only in cells, not people.
The study shows that a brain chemical called galanin can quickly shut down the activation of GnRH neurons that is normally caused by the peptide kisspeptin‑10. It does this by binding to a specific galanin receptor (GalR1) and opening potassium channels, which quiets the neurons and cuts down GnRH hormone release.
Akkaya. Hatice H; Eyuboglu. Signem S; Erkanlı Senturk. Gozde G; Yilmaz. Bayram B
In a rat study, giving kisspeptin‑10 helped boost antioxidant enzymes in the testes and reduced damage caused by a high‑methionine diet, without harming sperm cells. The hormone changes were modest, and the work is only in young rats, not people.
Rather. M A MA; Bhat. I A IA; Gireesh-Babu. P P; Chaudhari. A A; Sundaray. J K JK; Sharma. R R
Researchers cloned the kisspeptin gene in a fish and tested regular kisspeptin‑10 versus a version packed inside tiny chitosan particles. The nanoparticle form kept the hormone‑related genes active longer (peaking at 12 hours) and helped the fish’s ovaries mature, suggesting the delivery method makes the peptide last longer in the body.
Prolactinomas are fairly common pituitary tumors that raise prolactin levels and can shut down reproductive hormones through kisspeptin neurons. Men tend to get bigger, harder‑to‑treat tumors. The usual drugs are dopamine agonists, but they can cause impulse‑control problems and other side effects, so surgery or, in rare aggressive cases, chemotherapy (temozolomide) are alternatives.
Gresham. Rebecca R; Li. Shengyun S; Adekunbi. Daniel A DA; Hu. Minghan M; Li. Xiao Feng XF; O'Byrne....
Injecting the kisspeptin-10 peptide directly into a specific part of the male rat brain (the medial amygdala) caused the animals to get multiple erections, and this effect was stopped by a blocker that blocks kisspeptin receptors. Giving the same peptide into a different brain area raised hormone levels but didn’t cause erections, showing the effect is location‑specific.
Goertzen. Cameron G CG; Dragan. Magdalena M; Turley. Eva E; Babwah. Andy V AV; Bhattacharya. Moshmi...
The study shows that kisspeptin‑10, a short peptide from the KISS1 gene, can actually help breast cancer cells become more invasive by forming tiny structures called invadopodia, especially in cancers that lack estrogen receptors. This suggests that using kisspeptin‑10 as a supplement could carry a hidden risk for certain types of breast cancer.
Abbara. Ali A; Narayanaswamy. Shakunthala S; Izzi-Engbeaya. Chioma C; Comninos. Alexander N AN; Clar...
In healthy older men (around 60 years old), the brain’s kisspeptin system and the pituitary’s response to GnRH still work well, but the testes don’t make as much testosterone in response. Giving kisspeptin-54 boosts LH (a hormone that tells the testes to produce testosterone) even more than in younger men, yet the actual rise in testosterone is blunted.
Kisspeptin, a naturally occurring hormone, can be given as a drug to start the hormone surge that makes eggs mature during IVF. In studies it works about as well as the usual drugs and seems safer for women who might get an over‑reaction of the ovaries.
The study found that women with polycystic ovary syndrome (PCOS) have higher levels of the hormone kisspeptin and its receptor in ovarian cells, and these levels are linked to another PCOS marker called AMH. However, the amount of kisspeptin in the fluid around the egg didn’t predict whether IVF would work.
Min. Le L; Leon. Silvia S; Li. Huan H; Pinilla. Leonor L; Carroll. Rona S RS; Tena-Sempere. Manuel M...
The study shows that the compound RF9, previously thought to block a different hormone receptor, actually works like kisspeptin-10 by activating the kisspeptin receptor (KISS1R) and boosting luteinizing hormone (LH) in mice. This means RF9 isn’t useful for studying the other receptor and its main effect is through the kisspeptin pathway.
Umayal. B B; Jayakody. S N SN; Chandrasekharan. N V NV; Wijesundera. W Ss WS; Wijeyaratne. C N CN
A study in Sri Lankan women found that those with polycystic ovary syndrome (PCOS) have higher blood levels of the peptide kisspeptin compared to women without PCOS, regardless of their body weight. The researchers suggest kisspeptin could be used as a marker to help identify PCOS early, especially in teens.
Chan. Yee-Ming YM; Lippincott. Margaret F MF; Kusa. Temitope O TO; Seminara. Stephanie B SB
In a small study of kids with delayed puberty, kisspeptin-10 sometimes sparked a hormone surge (LH) that starts puberty, but only in those who already showed some natural LH activity. About half the children responded, while the rest showed little or no effect, indicating that kisspeptin’s ability to kick‑start the reproductive axis is hit‑or‑miss.
Wong. Henry K HK; Hoermann. Rudolf R; Grossmann. Mathis M
Young men who diet or train too hard can drop their body weight so low that their brain stops telling the testes to make testosterone. This drops both testosterone and LH levels, but getting back to a healthy weight usually fixes the problem.
Shah. Syed Salman SS; Shah. Mohsin M; Habib. Syed Hamid SH; Shah. Fawad Ali FA; Malik. Muhammad Omar...
A study of 180 healthy men found that both smoking and smokeless tobacco use raise total testosterone, but only smokeless tobacco significantly increases the hormone kisspeptin. Smokeless tobacco also lowered cholesterol and raised HDL and triglycerides. The authors suggest that higher kisspeptin from smokeless tobacco may disrupt the brain‑pituitary‑testes signaling that controls reproduction.
Sato. Kengo K; Shirai. Remina R; Hontani. Mina M; Shinooka. Rina R; Hasegawa. Akinori A; Kichise. To...
The study shows that kisspeptin-10 (KP-10), a peptide that narrows blood vessels, can speed up the growth and make plaques in arteries more likely to break, which is bad for heart health. Blocking its receptor GPR54 with an antagonist stopped these harmful effects in mice, suggesting the KP-10/GPR54 pathway could be a target for preventing atherosclerosis.
In mice that only have the kisspeptin receptor (Gpr54) on the cells that release GnRH, fertility can still happen, but the hormone system isn’t perfectly normal. The animals can get pregnant, yet they show early aging signs in female ovaries and odd hormone levels in males. This means kisspeptin acting just on GnRH cells is enough for basic fertility, but other tissues also need kisspeptin signals for full reproductive health.
Kisspeptin is a powerful trigger for the hormone that starts the reproductive cascade, and it works through a specific receptor (KISS1R) that can be fine‑tuned. Scientists are looking at ways to design kisspeptin‑like molecules to boost fertility or block hormone‑driven diseases, but the details of how the receptor turns on, turns off, and recycles are complex and depend on dose and the body’s metabolic state. For now, the information is mostly scientific background rather than a ready‑to‑use protocol.