Ten. Shi-Chao SC; Gu. Shou-Yong SY; Niu. Yun-Fei YF; An. Xiao-Fei XF; Yan. Ming M; He. Ming M
In rats, giving kisspeptin-10 directly into the brain lowered how much urine they made and how much sodium they excreted, mainly because it raised the hormone vasopressin (AVP) in the blood. This effect didn’t depend on the kidney’s sympathetic nerves or on another hormone called ANP, and it didn’t change blood pressure, heart rate, or potassium loss.
Ezzat. A Ahmed AA; Saito. H H; Sawada. T T; Yaegashi. T T; Goto. Y Y; Nakajima. Y Y; Jin. J J; Yamas...
In cow pituitary cells, the short peptide kisspeptin‑10 can boost the release of the male hormone LH, but only when the cells have been exposed to estrogen or testosterone first. It doesn’t affect the release of FSH, and it does raise prolactin levels regardless of hormone pretreatment. However, its effects are weaker than the body’s natural triggers GnRH and TRH, so it’s not a powerful direct stimulator.
Hashizume. T T; Saito. H H; Sawada. T T; Yaegashi. T T; Ezzat. A Ahmed AA; Sawai. K K; Yamashita. T...
In female goats, a single injection of kisspeptin‑10 caused a rise in the reproductive hormones LH and FSH within 20‑30 minutes, but didn’t change growth hormone or prolactin, and it was weaker than the standard hormone GnRH.
Castellano. J M JM; Bentsen. A H AH; Romero. M M; Pineda. R R; Ruiz-Pino. F F; Garcia-Galiano. D D;...
Acute inflammation (like from infection) quickly lowers the amount of kisspeptin in a brain area that controls reproduction and makes the body less responsive to kisspeptin, even though it also reduces appetite. This effect is separate from the loss of appetite and isn’t seen just from fasting. In rats, this means lower LH and testosterone during inflammation, and a weaker hormonal boost when kisspeptin is given.
Guerriero. Kathryn A KA; Keen. Kim L KL; Millar. Robert P RP; Terasawa. Ei E
In female rhesus monkeys, giving the kisspeptin-10 peptide directly into the brain boosts the release of GnRH, a hormone that triggers puberty and fertility, and this effect grows with higher doses. Blocking the kisspeptin receptor does the opposite, lowering GnRH. After puberty, the response to kisspeptin depends on ovarian hormones like estrogen, while before puberty it does not.
Szawka. Raphael E RE; Ribeiro. Aline B AB; Leite. Cristiane M CM; Helena. Cleyde V V CV; Franci. Cel...
In rats, giving kisspeptin‑10 directly into the brain boosts the hormone prolactin, but only when estrogen is present. It does this by quieting dopamine‑producing neurons that normally keep prolactin low. The peptide doesn’t act directly on the pituitary gland itself.
Scientists looked at two kisspeptin genes in a fish called chub mackerel and mapped where they are active in the body and how their activity changes with the fish's reproductive cycle. They found the short 10‑amino‑acid part of the peptide (kisspeptin‑10) is almost the same across many species, but the two genes behave differently in brain, pituitary, gonads, and fat tissue, especially between males and females.
The study shows that the peptide kisspeptin‑10, which is known to trigger puberty and fertility, can also turn off certain calcium channels in brain cells that control hormone release. It does this by causing a burst of calcium entry through special channels and releasing calcium from internal stores, which then feeds back to block the high‑voltage calcium channels. The effect needs the kisspeptin receptor, internal calcium, and several signaling proteins.
The study found that blood levels of the hormone kisspeptin are higher in adult women than in men or younger girls, and that obese pre‑puberty girls have higher kisspeptin than lean peers. However, kisspeptin does not reliably signal the start of puberty. Its levels seem to be tied to body fat and leptin, a hormone that signals energy stores.
Wahab. F F; Bano. R R; Jabeen. S S; Irfan. S S; Shahab. M M
In male rhesus monkeys, giving kisspeptin‑10 as a shot raised the hormone adiponectin (which helps insulin sensitivity) when the animals were fed or fasted for 24 hours, but it didn’t change leptin or resistin levels. The effect was modest and only seen in a tiny study of four monkeys, so it’s not ready for personal use yet.
Aydin. M M; Oktar. S S; Yonden. Z Z; Ozturk. O H OH; Yilmaz. B B
In a short‑term rat study, giving kisspeptin‑10 boosted liver antioxidant enzymes and lowered some signs of oxidative damage, hinting it could protect the liver. However, the work was done in young male rats, used a dose that isn’t directly translatable to people, and also changed other blood markers, so we can’t yet say it’s safe or useful for human biohackers.
The study found that kisspeptin peptides (specifically KP13 and KP54) can lower insulin release from mouse pancreatic cells when blood sugar is low, but this effect disappears when sugar levels are higher. The research didn’t test kisspeptin‑10 directly, and it’s all in isolated mouse tissue, so there’s no clear guidance for people to use these peptides in real life yet.
Silveira. L G LG; Noel. S D SD; Silveira-Neto. A P AP; Abreu. A P AP; Brito. V N VN; Santos. M G MG;...
Scientists found two new genetic changes in the kisspeptin gene in kids who went through puberty very early. One of these changes (P74S) makes the kisspeptin peptide break down slower in the blood, which might help explain why puberty started so early. The study doesn’t test kisspeptin as a supplement, so there’s no direct advice for using it, but it shows that peptide stability matters for hormone effects.
Navenot. Jean-Marc JM; Fujii. Nobutaka N; Peiper. Stephen C SC
Kisspein‑10 binds to its receptor GPR54 on cells, quickly turning on the Rho/ROCK signaling pathway, which makes the cells change shape and eventually die. This cell‑killing effect may help stop cancer cells from spreading, but the study is done in lab dishes and doesn’t give any dosing or safety info for people.
d'Anglemont de Tassigny. Xavier X; Ackroyd. Karen J KJ; Chatzidaki. Emmanouella E EE; Colledge. Will...
The study shows that the peptide kisspeptin-10 can trigger the release of reproductive hormones (LH) in mice whether it’s given directly into the brain or injected into the body, while NMDA (a brain chemical) needs kisspeptin signaling to work when given peripherally but can act without it when injected into the brain.
Ohkura. S S; Takase. K K; Matsuyama. S S; Mogi. K K; Ichimaru. T T; Wakabayashi. Y Y; Uenoyama. Y Y;...
In goats, the natural rhythm that makes the brain release reproductive hormones (GnRH) seems to be driven by kisspeptin‑producing neurons in a part of the hypothalamus. Giving extra kisspeptin raised the hormone LH, but didn’t change the brain’s electrical pattern that normally triggers GnRH pulses, suggesting kisspeptin acts upstream of that pattern.
Ramaswamy. Suresh S; Seminara. Stephanie B SB; Ali. Barkat B; Ciofi. Philippe P; Amin. Nisar A NA; P...
The study shows that activating the neurokinin B (NKB) pathway in male monkeys can cause a quick jump in the hormone LH, which signals the brain to release GnRH, but doing this repeatedly doesn’t keep the hormone pulses going like kisspeptin does. In other words, NKB can give a short‑term boost but isn’t good for sustained hormone rhythm control.
The study measured the hormone kisspeptin in newborns and adults and found that babies have very high levels (likely from the placenta) while adults show higher levels in women than men. Kisspeptin levels drop with age and are linked to other hormones like leptin and LH, suggesting it plays a role in both metabolism and reproductive function.
Hameed. Saira S; Jayasena. Channa N CN; Dhillo. Waljit S WS
Kisspeptin is a small protein that tells the brain to release hormones that control the ovaries and testes. This review explains how kisspeptin helps start and regulate the hormone cascade needed for fertility, and it looks at whether giving kisspeptin could treat reproductive problems.
Cejudo Roman. Antonio A; Pinto. Francisco M FM; Dorta. Idaira I; Almeida. Teresa A TA; Hernánde...
The study shows that the hormone‑like peptide kisspeptin and its partner neurokinin B, along with their receptors, are naturally present in the uterus, ovaries, and fallopian tubes of women, especially in the lining cells. This suggests they might help regulate local reproductive functions, but the research does not test any treatments or give dosing advice.