Ludwig. Mike M; Newton. Claire C; Pieters. Ané A; Homer. Natalie Z M NZM; Feng Li. Xiao X; O'By...
In a study on male African lions, giving a short peptide called kisspeptin-10 (KP-10) caused a big jump in the hormone that triggers testosterone (LH) in adult lions, and it also raised testosterone itself. Young lions only responded to the classic hormone GnRH, not KP-10. Stress hormones didn’t change, so KP-10 might be a clean way to check reproductive health and possibly stress exposure in animals.
Zhao. Rongqian R; Nie. Li L; Shi. Yu Y; Jin. Lei L; Pan. Yiran Y; Zhang. Xinxin X; Wang. Zun Z; He....
In mice fed a high‑fat diet, the hormone‑like peptide kisspeptin‑10 slowed liver cancer growth by turning down the activity of key enzymes that break down sugar. The study shows kisspeptin can counteract the cancer‑promoting effects of a fatty diet, at least in animal models.
In mice that had a stroke, giving the peptide kisspeptin‑10 helped keep the brain's protective barrier (the blood‑brain barrier) intact. It did this by boosting a protein called Claudin‑10 and turning on the cell's antioxidant system (Nrf2). The same protective effect was seen in human brain blood‑vessel cells grown in the lab. However, the work was done only in animals and cell cultures, so we don’t yet know how to use it safely or effectively in people.
In a lab study using mouse hypothalamus cells, the short form of kisspeptin (kisspeptin‑10) caused a strong rise in internal calcium levels, which is a signal that neurons are active. This effect could be blocked by a kisspeptin receptor blocker, and another hormone, GnIH, didn’t change calcium on its own but reduced the kisspeptin‑driven calcium spikes. The work suggests kisspein‑10 directly stimulates its own neurons and that GnIH can dampen this signal.
Yu. Huimin H; Xie. Minghong M; Liufu. Xuancong X; Xu. Yezi Y; Chen. Lei L
Researchers found that a short protein called kisspeptin-10 (KP-10) can stop brain aneurysms from growing in mice. It works by attaching to a receptor (GPR54) and lowering a gene called Egr-1, which then reduces harmful enzymes and new blood‑vessel growth that normally help aneurysms form. The effect disappears if the receptor is missing, showing the pathway is essential.
Chen. Xing X; Yang. Shu S; Shaw. Natalie D ND; Xia. Menghang M
The kisspeptin system controls hormones that affect fertility, metabolism, and even cancer growth. Scientists are hunting for drugs that can turn this system on (agonists) or off (antagonists), using lab tests and AI tools, but most of these compounds are still experimental and not available for personal use.
Prasath. N N; Arul Senghor. K A KA; Vinodhini. V M VM; Anuradha. M M
The study found that men with low sperm counts have lower blood levels of the hormone kisspeptin and free testosterone, and higher levels of LH and FSH, and that a common genetic variation in the KISS1 gene (rs35431622) is linked to a higher risk of infertility.
Kisspeptin is a brain peptide that tells the reproductive hormone system when to release GnRH, which then triggers the release of sex hormones. It works through two brain areas: one that creates the regular pulses of GnRH and another that creates the big surge needed for ovulation. In mammals, it’s crucial for starting puberty, keeping fertility, and may affect reproductive aging, so scientists think it could become a drug target for fertility problems.
In mice, giving kisspeptin‑10 directly into the brain changed how much they ate and moved, but the effects were opposite in males and females. Males ate less and moved a lot less, while females moved more without eating more. Giving the peptide under the skin did not really change anything, and it didn’t affect blood sugar control.
Mills. Edouard G EG; Tsoutsouki. Jovanna J; Pierret. Aureliane C S ACS; Comninos. Alexander N AN; Dh...
Kisspeptin is a brain chemical that controls the whole reproductive hormone system and is also found in brain areas that handle emotions. Studies in animals and people show it can affect sexual behavior and mood, making it a possible target for treating fertility or sexual‑psychological problems. However, the paper is a review and does not give specific dosing or protocols for personal use.
Santos. Bianca Reis BR; Cordeiro. Jeane Martinha Dos Anjos JMDA; Santos. Luciano Cardoso LC; Santana...
In pregnant rats with low thyroid hormone, the placenta shows a spike in inflammatory signals that can damage cells. Giving a short kisspeptin peptide (Kp10) stopped most of that inflammation and cell‑death process, suggesting kisspeptin can calm down a specific immune pathway (NLRP3 inflammasome) in the womb.
The study found that women with PCOS have higher blood levels of the hormone‑like peptide kisspeptin, and these levels go up together with LH and testosterone. Certain gene variants in the kisspeptin pathway were linked to different estradiol levels, but overall the gene frequencies weren’t different from healthy women. This suggests kisspeptin may be involved in PCOS, but the research didn’t test any treatments.
The study shows that a short piece of the hormone kisspeptin (kisspeptin‑10) can protect brain blood vessels from damage caused by a HIV protein called Tat. In mice and brain‑cell cultures, kisspeptin‑10 reduced oxidative stress, lowered inflammation, kept the tight junction protein Claudin‑5 high, and blocked a cell‑signaling pathway (RhoA/ROCK) that normally makes the blood‑brain barrier leaky.
The study shows that making prostate cancer cells produce more of the protein KiSS1 makes them grow faster, form bigger tumors, move around more, and attract blood vessels, which together could make the cancer spread more aggressively.
Rodriguez-Carrillo. Andrea A; Vela-Soria. Fernando F; Smagulova. Fatima F; Fernández. Mariana F...
A study of Spanish teenage boys found that higher levels of certain PFAS chemicals in the blood are linked to changes in metabolism (like blood sugar and cholesterol) and to higher levels of the hormone kisspeptin. Some PFAS were tied to higher blood pressure, while others were linked to better cholesterol profiles. The researchers think kisspeptin might be part of how PFAS affect the body's metabolic system, but more research is needed.
In obese male rats, two tiny RNA molecules (miR‑137 and miR‑325) become more abundant and shut down the brain's kisspeptin signal, leading to low testosterone and worse metabolism. Blocking these RNAs restores kisspeptin, fixes hormone levels, and improves glucose control and inflammation—better than giving extra kisspeptin or testosterone. The work shows a new molecular target, but it’s still early‑stage animal research.
Cheng. Ran R; Zhu. Ying Y; Yang. Liu-Qing LQ; Xiao. Lu L; Fang. Xiao-Hong XH; Zhang. Qin Q
A Chinese study found that women with polycystic ovary syndrome (PCOS) have lower blood levels of the peptides kisspeptin and neurokinin B (NKB) and higher levels of the neurotransmitter GABA compared to healthy women. In PCOS patients, kisspeptin was linked to higher luteinizing hormone (LH) and the LH/FSH ratio, while GABA and NKB were strongly correlated with each other only in the PCOS group.
This review explains how two brain chemicals, kisspeptin and neurokinin B, help control the hormone signals that make an egg mature and trigger ovulation. It shows that kisspeptin ramps up GnRH (a key hormone) when estrogen switches from a negative to a positive signal, while neurokinin B fine‑tunes the hormone drive needed for a single egg release. The paper also talks about early drug ideas for conditions like PCOS, missed periods, and IVF support.
Researchers found that people with myasthenia gravis (an autoimmune disease) have lower levels of the hormone kisspeptin, and giving a kisspeptin-like peptide (KP10) to rats with a similar disease improved their symptoms by balancing immune cells and blocking a harmful inflammation pathway.
The study shows that a short form of the hormone kisspeptin (kisspeptin‑10) can boost the production of its own gene (Kiss‑1) and the hormone GnRH in mouse hypothalamic cells, and that this effect relies on two cell‑signaling pathways called ERK and PKA.