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KP-10, Metastin (45-54), Kisspeptin-10 (human), KiSS-1
Kisspeptin-10 is a decapeptide that activates the KISS1R receptor to stimulate GnRH release, regulating the reproductive hormone axis and fertility.
Tena-Sempere. Manuel M
Kisspeptin-10 (and related peptides) are natural signals that turn on the brain's reproductive hormone system. Mutations that block its receptor (GPR48) stop puberty and cause low sex hormones, showing kisspeptin is essential for starting and regulating reproduction. The peptide can strongly boost the gonadotropin axis when given to animals, and it acts as a key gatekeeper for GnRH neurons, linking sex hormones to metabolic cues.
Herbison. Allan E AE
This review explains that puberty timing is heavily influenced by genetics. About 17 single‑gene mutations can delay or stop puberty, many of which also affect the sense of smell (Kallmann syndrome). A newer discovery shows the kisspeptin‑GPR54 pathway directly controls the brain cells that release the hormone GnRH, which starts puberty. Overall, genetics explain roughly 30% of puberty problems, and scientists are realizing that multiple genes often work together.
Cerrato. Felecia F; Seminara. Stephanie B SB
The paper reviews how rare genetic changes in the GPR54 receptor can lead to a condition where puberty doesn’t happen because the body can’t produce the right hormones. While these mutations are uncommon, studying them helps scientists understand how the kisspeptin‑GPR54 system controls reproductive hormones.
Karges. Beate B; Roux. Nicolas de N
This study shows that genetic mutations affecting the kisspeptin receptor (GPR54) and other related proteins can cause a condition where the body doesn’t produce enough sex hormones, leading to delayed or absent puberty. It also links other gene mutations to a related disorder that includes loss of smell. While it highlights the importance of the kisspeptin pathway for hormone regulation, it doesn’t give any direct tips on how to use kisspeptin‑10 for health improvements.
Gutiérrez-Pascual. E E; Martínez-Fuentes. A J AJ; Pinilla. L L; Tena-Sempere. M M; Malag&#...
The study shows that kisspeptin-10 can directly trigger the release of luteinising hormone (LH) and growth hormone (GH) from rat pituitary cells, acting not only on the usual brain‑hypothalamus pathway but also right at the gland itself. The effect is dose‑dependent but weaker than the natural hormones that normally stimulate LH and GH.
Popa. Simina M SM; Clifton. Donald K DK; Steiner. Robert A RA
Kisspeptin-10 is a brain peptide that binds to the GPR54 receptor and triggers the release of GnRH, a hormone that controls the reproductive axis. This pathway is crucial for puberty and is influenced by sex hormones, but the study only describes basic biology, not how to use it as a supplement or drug.
Kutzleb. Christian C; Busmann. Annette A; Wendland. Martin M; Maronde. Erik E
Scientists used a screening method to link three natural peptides—metastin (kisspeptin-10), QRFP, and chemerin—to their cell receptors and discovered what they do in the body. Metastin helps control hormones related to pregnancy and gonad development, QRFP influences how much we eat and hormone release from the adrenal gland, and chemerin acts as a signal for immune cells and may affect inflammation and bone growth.
Rometo. Adonna M AM; Krajewski. Sally J SJ; Voytko. Mary Lou ML; Rance. Naomi E NE
The study found that after menopause (or after removing ovaries in monkeys), certain brain cells that make kisspeptin get bigger and produce more of the gene, and giving estrogen back shrinks this effect. This shows kisspeptin is linked to how the body senses low estrogen, but the research didn’t test any treatments or dosing.
Roa. Juan J; Tena-Sempere. Manuel M
Scientists have found that the kisspeptin system (KiSS-1 and its receptor GPR54) is a key driver of female reproductive hormones, influencing puberty timing, hormone feedback loops, and possibly linking metabolism to fertility. While this deepens our understanding, it doesn’t yet translate into clear, safe protocols for everyday use.
Panidis. Dimitrios D; Rousso. David D; Koliakos. George G; Kourtis. Anargyros A; Katsikis. Ilias I;...
The study found that women with PCOS who are overweight have lower blood levels of kisspeptin (also called metastin) and that these lower levels are linked to higher insulin resistance and higher free androgen hormones. In contrast, leaner PCOS women and overweight women without PCOS had higher kisspeptin levels. The data suggest that insulin resistance and excess androgens may suppress kisspeptin production.
Tomita. Kenji K; Niida. Ayumu A; Oishi. Shinya S; Ohno. Hiroaki H; Cluzeau. Jérôme J; Nave...
Scientists tweaked the short kisspeptin-10 peptide and found a new version (called H-Amb-Nal(2)-Gly-Leu-Arg-Trp-NH2) that works even better at activating the GPR54 receptor, which is involved in hormone release. This is still early‑stage lab work and doesn’t give any dosing or safety info for people.
Plant. Tony M TM; Ramaswamy. Suresh S; Dipietro. Meloni J MJ
In young male rhesus monkeys, giving a short IV dose of the peptide kisspeptin-10 every hour for two days caused the brain to release a steady stream of hormone signals (GnRH) that led to repeated spikes in LH and FSH, the hormones that start puberty. The effect stopped when a drug that blocks GnRH receptors was used, showing the response depends on the normal GnRH pathway.
Thompson. Emily L EL; Murphy. Kevin G KG; Patterson. Michael M; Bewick. Gavin A GA; Stamp. Gordon W...
Giving kisspeptin-54 under the skin every day for a couple of weeks shrank rat testes and hurt sperm production, even though a single dose briefly raised testosterone. The hormone's boost fades quickly with continuous use, and long‑term dosing may actually suppress the reproductive system.
Kriegsfeld. Lance J LJ
The review explains that a family of brain chemicals called RFamide peptides, especially kisspeptin and GnIH, act like a gas pedal and brake for the hormone system that controls reproduction. Kisspeptin turns on GnRH neurons to boost reproductive hormones, while GnIH slows them down. Both help fine‑tune how sex hormones give feedback to the brain.
Mead. Emma J EJ; Maguire. Janet J JJ; Kuc. Rhoda E RE; Davenport. Anthony P AP
Researchers found that kisspeptin peptides, including kisspeptin‑10, can cause human blood vessels to tighten up, acting as strong vasoconstrictors. The peptide and its receptor are present in major arteries and veins, meaning the effect could happen in the body, potentially raising blood pressure. This is important info for anyone thinking about using kisspeptin for health or performance purposes.
Smith. Jeremy T JT; Clifton. Donald K DK; Steiner. Robert A RA
Kisspeptin-10 is a natural brain peptide that talks to the GPR54 receptor to control the release of reproductive hormones. When you give kisspeptin, it directly stimulates the cells that make GnRH, which then boosts LH and FSH. Sex hormones like estrogen and testosterone feed back to kisspeptin‑producing neurons, turning them off in some brain areas and on in others, helping fine‑tune fertility cycles and hormone levels.
Ojeda. Sergio R SR; Lomniczi. Alejandro A; Mastronardi. Claudio C; Heger. Sabine S; Roth. Christian...
The review explains that puberty starts when the brain’s GnRH hormone begins pulsing more, driven mainly by the peptide kisspeptin and glutamate, while inhibitory signals from GABA and opioids drop. It describes a layered genetic network that controls this switch, but it doesn’t give any dosing or practical tips for using kisspeptin-10 in everyday health hacks.
Martini. A C AC; Fernández-Fernández. R R; Tovar. S S; Navarro. V M VM; Vigo. E E; Vazquez...
In male rats, both the normal form of ghrelin and its “inactive” version (UAG) lower the hormone LH, which is important for testosterone production. This suppression happens during puberty and in adult rats, and it also reduces the LH boost normally caused by kisspeptin‑10. The effect on LH does not seem to involve the usual ghrelin receptor for growth hormone, and UAG does not affect growth hormone levels.
Aparicio. Samuel A J R SA
The paper shows that kisspeptin, a small protein, talks to a receptor called GPR54 to control the release of GnRH, the hormone that starts the whole sex hormone cascade. This discovery highlights a new control point in the brain that affects testosterone, estrogen and other sex steroids, but it doesn’t give any dosing or treatment tips yet.
Kaiser. Ursula B UB; Kuohung. Wendy W
The study shows that kisspeptin, a small protein, is a key trigger for the brain to release hormones that start puberty and control fertility. When the kisspeptin receptor (GPR54) is broken, animals and people don’t develop normal sex hormones, but giving kisspeptin can jump‑start hormone release. This reveals a basic biological switch for reproductive health.