Kisspeptin-10

human trialKisspeptin-10 shows sexual dimorphism in its effects on gonadotropin release in humans³

human trialIntravenous kisspeptin administration increases peripheral OXT levels post-injection in healthy adults⁴

human trialTen minutes after kisspeptin, OXT increased by 18.8% from baseline⁴

human trialMales showed greater OXT increase than females (31.9% vs 5.7%) after kisspeptin administration⁴

human trialIn healthy men, serum LH and FSH were elevated after i.v. bolus kisspeptin-10, at doses as low as 0.3 and 1.0 nmol/kg, respectively⁶

human trialIn healthy women during the follicular phase of the menstrual cycle, no alterations in serum gonadotropins were observed after i.v. bolus, s.c. bolus, or i.v. infusion of kisspeptin-10 at maximal doses of 10 nmol/kg, 32 nmol/kg, and 720 pmol/kg/min, respectively⁶

human trialIn women during the preovulatory phase, serum LH and FSH were elevated after i.v. bolus kisspeptin-10 (10 nmol/kg)⁶

human trialKisspeptin-10 stimulates gonadotropin release in men as well as women during the preovulatory phase of menstrual cycle but fails to stimulate gonadotropin release in women during the follicular phase⁶

human trialPeripheral exogenous kisspeptin administration stimulates gonadotrophin release in healthy adults and in patients with certain forms of infertility⁷

human trialKisspeptin-10 has been shown to increase luteinizing hormone pulse frequency in humans without desensitization during continuous infusion²⁵

human trialGnRH was 2-3 fold more potent than kisspeptin isoforms in stimulating gonadotrophin secretion²⁵

human trialKisspeptin-10 dose-dependently increases LH pulse frequency and testosterone secretion in healthy men²⁵

human trialIn the first human trial, a single kisspeptin-54 infusion raised mean plasma LH from 4.2 to 10.8 U/L in 6 healthy men, demonstrating direct pharmacological engagement of the reproductive axis at its hypothalamic origin²⁶

human trialClinical trials show kisspeptin stimulates LH, FSH, and testosterone release in men and can trigger oocyte maturation in women undergoing IVF²⁶

human trialA Phase 2 trial in 60 women achieved a 45% live birth rate with no moderate or severe OHSS.²⁹

human trialKisspeptin-54 (the longer active fragment) used as an IVF oocyte maturation trigger produced zero moderate, severe, or critical OHSS cases in a Phase 2 trial involving 60 high-risk women, while maintaining a 45% live birth rate.²⁹

human studyKisspeptin-10 is capable of increasing circulating follicle-stimulating hormone, luteinizing hormone and testosterone levels in humans⁵

human studyLoss of kisspeptin signaling causes hypogonadotrophic hypogonadism in humans and other mammals⁷

human studyInactivating mutations in the gene encoding kisspeptin and its receptor cause infertility⁷

human studyLoss-of-function mutations of the GPR54 gene are linked to absence of puberty onset and hypogonadotrophic hypogonadism in humans²²

human studyKisspeptin-10 level inversely correlates with preeclampsia severity and fetal growth parameters²⁵

human studyContinuous kisspeptin-10 infusion increases LH pulse frequency in humans without desensitization²⁵

human studyLoss-of-function mutations in GPR54/KISS1R cause isolated hypogonadotropic hypogonadism (IHH) in humans, with absent puberty and infertility³⁰

animalCentral or peripheral administration of kisspeptin-10 stimulates gonadotropin release in several mammalian species³

animalKisspeptin-10 stimulates gonadotropin release in both male and female rodents⁶

animalICV administration of kisspeptin-10 increased plasma vasopressin concentration in anesthetized male rats⁸

animalKisspeptin-10 stimulates gonadotropin release in both male and female rodents⁹

animalSerum concentrations of Kisspeptin-10 were significantly higher in cows with follicular cysts compared with healthy cows¹¹

animalKp-10 abrogated bone loss by suppressing osteoclast activity in vivo¹³

animalKp-10 prevents the increased vascular permeability of OHSS by the activation of KISS1R and the inhibition of VEGF²¹

animalMetastin and kisspeptin-10 have been demonstrated as very potent stimulators of the gonadotrophic axis in a number of species and through different routes of administration²²

in vitroExogenously administered KP-10 (0.1 µM) substantially suppressed wild-type and E46K mutant α-syn-mediated apoptosis and mitochondrial depolarization in cholinergic differentiated SH-SY5Y neurons¹⁵

expert opinionThe most rigorous clinical work to date involves the parent molecule kisspeptin-54 in Phase 2 IVF trials at Imperial College London.²⁸

expert opinionNo Phase 3 trial has been completed for kisspeptin.²⁹

anecdotalKisspeptin-10 produces measurable hormonal changes within minutes of administration²³

anecdotalTrevor Hutchinson's follow-up bloodwork at four weeks showed LH climbed from 1.2 to 6.8 mIU/mL and total testosterone went from 285 ng/dL to 612 ng/dL²³

human studyExpression of Kp and KISS1R is lower in ASM from women compared with men¹⁶

human studyExpression of Kp and KISS1R is lower in patients with asthma compared with people without asthma¹⁶

human studyKiss1r mRNA decreased in the luteinized human granulosa cells of high-risk OHSS patients²¹

human studyLose the gene for its receptor, and you never go through puberty.²⁹

human studyHumans with loss-of-function mutations in the kisspeptin receptor (GPR54/KISS1R) fail to undergo puberty and are infertile.²⁹

animalThe effect of kisspeptin-10 on gonadotropin release is abolished by preadministration of a GnRH antagonist³

animalKisspeptin administration increases plasma OXT in animals⁴

animalKisspeptins play crucial roles in regulating reproductive functions¹⁰

animalKisspeptins have effects on cardiovascular, respiratory, and musculoskeletal systems¹⁰

animalKisspeptin signaling has been investigated in endocrine-metabolic regulation¹⁰

animalKisspeptin modulates the release of hormones from hypothalamus, pituitary, gonadal, adrenal, and pancreatic glands¹⁰

animalKisspeptin metabolic effects exhibit sexual dimorphism with increase in metabolic activity and decrease in body weight in females¹⁰

animalKisspeptin metabolic effects exhibit sexual dimorphism with increase in weight gain in males¹⁰

animalGene expression analysis showed a reduction in GPR54 mRNA levels in follicular cysts compared to preovulatory follicles¹¹

animalNo expression of the GPR147 receptor was detected in follicular cyst and preovulatory follicles¹¹

animalLower presence of GPR54 in follicular cysts compared to preovulatory follicles can be determined by down-receptor regulation induced by elevated serum concentrations of Kisspeptin-10¹¹

animalEndocrine imbalances of the hypothalamic-pituitary-ovarian axis in follicular cysts may reflect altered patterns of Kisspeptin-10 and GnIH secretion¹¹

animalKisspeptin-10 (Kp-10) causes Dusp18 to dephosphorylate Src at Tyr 416 via GPR54 activation¹³

animalGpr54 recruits both active Src and the Dusp18 phosphatase at its proline/arginine-rich motif in its C terminus¹³

animalKp-10 binding to Gpr54 leads to up-regulation of Dusp18¹³

animalKiss1, Gpr54 and Dusp18 knockout mice all exhibit osteoclast hyperactivation and bone loss¹³

animalKiSS-10 increases the level of propeptides of procollagen type I (PICP) and III (PIIICP) in fibroblast culture medium and mouse PIIICP in serum¹⁴

animalFour-week infusion of KP-10 into Apoe mice accelerates development of aortic atherosclerotic lesions with increased monocyte/macrophage infiltration and vascular inflammation¹⁸

animalFour-week KP-10 infusion in Apoe mice decreases intraplaque vascular smooth muscle cell content¹⁸

animalP234, a GPR54 antagonist, completely attenuated proatherosclerotic effects of endogenous and exogenous KP-10 in Apoe mice¹⁸

animalKisspeptin-10 stimulated GnRH release in males and females at the prepubertal and pubertal stages²⁰

animalFemales are much more sensitive to kisspeptin signaling than males²⁰

animalThroughout the progress of puberty, major remodeling of kisspeptin and NKB signaling pathways for the regulation of GnRH release takes place²⁰

animalIn females during puberty, reciprocal pathways (kisspeptin signaling mediated through NKB neurons and NKB signaling mediated through kisspeptin neurons) are established²⁰

animalIn males during puberty, reciprocal pathways are consolidated to a simpler kisspeptin-dominant signaling pathway²⁰

animalIn primates, both kisspeptin and NKB signaling are contributing factors for the pubertal increase in GnRH release, rather than initiating puberty²⁰

animalDecreased expression of Kiss1r was observed in both ovaries and lung tissue of OHSS rats²¹

animalInjection of exogenous Kp-10 inhibited the increase of vascular permeability and VEGF while promoting the expression of Kiss1r in both the ovarian and lung tissue of OHSS rats²¹

animalGPR54-null mice reproduce the phenotype of absent puberty onset and hypogonadotrophic hypogonadism²²

animalThe hypothalamic KiSS-1/GPR54 system is an essential gatekeeper of GnRH neurons, involved in their activation at puberty and their regulation by gonadal steroids and metabolic factors²²

animalKisspeptin-10 reduces cerebral aneurysm development by inhibiting Egr-1 expression via GPR54²⁵

animalGPR54-knockout mice showed a matching phenotype of isolated hypogonadotropic hypogonadism — small testes, delayed vaginal opening, absent follicular maturation — while retaining normal hypothalamic GnRH content and responsiveness to exogenous GnRH and gonadotropins²⁶

in vitroAll kisspeptin peptides share the C-terminal decapeptide sequence, kisspeptin-10, which is required for biological activity in vitro³

in vitroFour metabolites corresponding to peptide fragments y9, y8, y7 and y5 were found after kisspeptin-10 incubation in human serum⁵

in vitroA degradation product was probably caused by oxidation of the tryptophan residue into a kynurenine residue⁵

in vitroKisspeptin is a family of peptides derived from the KISS1/kiss1 gene with structural similarity, forming from differential proteolysis of a common precursor, prepro-kisspeptin⁷

in vitroKisspeptin is an endogenous ligand of GPCR54 and stimulates GnRH release⁸

in vitroIn the brain slice preparation in vitro, bath application of kisspeptin-10 potentiated mEPSCs in MNCs of the rat SON by a mechanism that involved the kisspeptin receptor⁸

in vitroIn vitro, kisspeptins were found to favor oocyte maturation⁸

in vitroKisspeptins were found to induce the production of progesterone in cultured rat luteal cells⁸

in vitroKisspeptin-10 challenge of Fluo-4 loaded sperm was found to promote an increase in intracellular calcium indicating that these highly specialized cells express a functional Kiss1R⁸

in vitroKisspeptin-10 significantly increases the content of intracellular collagen in the myocardium¹⁴

in vitroKiSS-10 elevates the level of phosphorylated focal adhesion kinase (FAK) in human cardiac fibroblasts¹⁴

in vitroInhibition of FAK negates the stimulatory effect of KiSS-10 on collagen deposition in vitro¹⁴

in vitroKiSS-10 inhibits the release of metalloproteinases (MMP-1,-2,-9)¹⁴

in vitroKiSS-10 elevates the secretion of tissue inhibitors of metalloproteinases (TIMP-1,-2,-4)¹⁴

in vitroKiSS-10 enhances the expression of α1 chains of procollagen type I and III in vitro¹⁴

in vitroKiSS-10 augmentation of collagen deposition is dependent on protein synthesis elevation, inhibition of MMPs activity, and increase of TIMPs release¹⁴

in vitroThe profibrotic activity of KiSS-10 is mediated by FAK and is not dependent on TGF-β1¹⁴

in vitroKisspeptin-10 (KP-10) is a hypothalamic neurohormone implicated in cholinergic pathologies when aberrant fluctuations of expression patterns and receptor densities occur in neurodegenerative micromilieus¹⁵

in vitroKP-10 is biologically governed by its cognate G-protein-coupled receptor, GPR54¹⁵

in vitroKP-10 attenuated the progressive demise of α-synuclein (α-syn)-rich cholinergic-like neurons¹⁵

in vitroCo-administration of KP-10 with GPR54 antagonist kisspeptin-234 (KP-234) failed to abrogate the neuroprotection elicited by KP-10, signifying a GPR54 dispensable mechanism of action¹⁵

in vitroKP-10 treatment diminished α-syn and ChAT immunoreactivity in neurons overexpressing wild-type and E46K mutant α-syn¹⁵

in vitroCleaved forms of Kp, particularly Kp-10, mitigated PDGF-induced ASM proliferation¹⁶

in vitroPharmacological inhibition of KISS1R increased basal ASM proliferation¹⁶

in vitroKISS1R knockdown increased basal ASM proliferation, which was further amplified by PDGF¹⁶

in vitroThe antiproliferative effect of Kp-10 in ASM was mediated by inhibition of MAPK/ERK/Akt pathways¹⁶

in vitroKp-10 treatment led to altered expression of PCNA, C/EBP-α, Ki-67, cyclin D1, and cyclin E¹⁶

in vitroKp-10 induced cell cycle arrest at G0/G1 phase in ASM¹⁶

in vitroKP-10 and GPR54 are expressed at high levels in atheromatous plaques and restenotic lesions after wire-injury¹⁸

in vitroKP-10 suppresses migration and proliferation of human umbilical vein endothelial cells (HUVECs)¹⁸

in vitroKP-10 induces senescence in HUVECs¹⁸

in vitroKP-10 increases adhesion of human monocytes to HUVECs¹⁸

in vitroKP-10 stimulates expression of interleukin-6, tumor necrosis factor-α, monocyte chemotactic protein-1, intercellular adhesion molecule-1, vascular cell adhesion molecule-1, and E-selectin genes in HUVECs¹⁸

in vitroKP-10 enhances oxidized low-density lipoprotein-induced foam cell formation associated with upregulation of CD36 and acyl-coenzyme A: cholesterol acyltransferase-1 in human monocyte-derived macrophages¹⁸

in vitroIn human aortic smooth muscle cells, KP-10 suppresses angiotensin II-induced migration and proliferation¹⁸

in vitroKP-10 enhances apoptosis and activities of matrix metalloproteinase (MMP)-2 and MMP-9 by upregulation of extracellular signal-regulated kinase 1/2, p38, Bax, and caspase-3 in human aortic smooth muscle cells¹⁸

in vitroKISS1 is a metastasis suppressor protein whose expression is commonly downregulated in the metastatic tumors of various origins¹⁹

in vitroKISS1 has the ability to suppress colonization of disseminated cancer cells in distant organs critical for the formation of secondary tumor foci¹⁹

in vitroKISS1 is involved in the mechanisms of tumor angiogenesis, autophagy and apoptosis regulation¹⁹

in vitroKISS1 may have a role in both restricting and promoting cancer cell invasion¹⁹

in vitroA high level of 17-β estradiol suppressed the expression of KISS1R and increased VEGF and nitric oxide through estrogen receptors (ESR2) in HUVECs²¹

in vitroKisspeptins are the peptide products of the KiSS-1 gene, identified in 2001 as natural ligands of the previously orphan G protein-coupled receptor, GPR54²²

expert opinionKisspeptin peptides are critical regulators of mammalian reproductive physiology³

expert opinionKisspeptin receptors are found on oxytocinergic neurons⁴

expert opinionKisspeptin peptides are critical in human reproductive physiology⁹

expert opinionKisspeptin-10 is a potent vasoconstrictor and inhibitor of angiogenesis¹⁸

expert opinionKisspeptin-10 functions as the master switch for reproductive hormone signaling throughout the body²³

expert opinionKisspeptin-10 is the shortest active fragment of the kisspeptin neuropeptide family encoded by the KISS1 gene²⁴

expert opinionKisspeptin-10 binds the G-protein-coupled receptor GPR54 (KISS1R) expressed on hypothalamic GnRH neurons²⁴

expert opinionActivation triggers pulsatile release of gonadotropin-releasing hormone (GnRH) into the hypophyseal portal system²⁴

expert opinionGnRH drives pituitary secretion of luteinizing hormone (LH) and follicle-stimulating hormone (FSH)²⁴

expert opinionLH stimulates testosterone production in Leydig cells in men and progesterone/estradiol production in the ovary²⁴

expert opinionFSH drives spermatogenesis in men and follicular development in women²⁴

expert opinionThe KISS1/KISS1R pathway sits upstream of GnRH and is the principal gatekeeper of puberty onset and normal reproductive function²⁴

expert opinionLoss-of-function mutations in KISS1 or KISS1R cause congenital hypogonadotropic hypogonadism²⁴

expert opinionKisspeptin-10 is a neuropeptide researched for its central role in regulating the reproductive hormone axis²⁵

expert opinionKisspeptin-10 is a truncated form of kisspeptin that potently stimulates GnRH release, triggering downstream LH and FSH secretion²⁵

expert opinionThe kisspeptin-10/GPR54 system functions as an essential regulator of puberty onset and reproductive function through GnRH control²⁵

expert opinionKisspeptin is a family of neuropeptides encoded by the KISS1 gene, acting as the primary upstream activator of the hypothalamic-pituitary-gonadal (HPG) axis by binding to the KISS1 receptor (KISS1R, also known as GPR54) on GnRH-secreting neurons in the hypothalamus²⁶

expert opinionThe active fragments range from kisspeptin-54 (a 54-amino-acid C-terminally amidated peptide) to shorter fragments including kisspeptin-14, kisspeptin-13, and kisspeptin-10, all of which share the conserved C-terminal decapeptide required for KISS1R binding and activation²⁶

expert opinionKisspeptins play a crucial role in the normal functioning of the reproductive axis in both humans and animals by stimulating the secretion of gonadotropin-releasing hormone (GnRH) from the hypothalamus²⁷

expert opinionKisspeptin-10 is the 10-amino-acid C-terminal fragment of the parent neuropeptide kisspeptin-54 (encoded by the KISS1 gene), and the shortest sequence that retains full biological activity at the kisspeptin receptor KISS1R (also called GPR54).²⁸

expert opinionWhen administered, kisspeptin-10 acts on hypothalamic GnRH neurons to trigger pulsatile gonadotropin-releasing hormone release, which in turn drives a luteinizing hormone (LH) surge and a smaller follicle-stimulating hormone (FSH) response.²⁸

expert opinionKisspeptin-10 corresponds to residues 45 to 54 of the parent precursor and is the minimum sequence required for full receptor activation.²⁸

expert opinionKisspeptin-10 shares functional equivalence with kisspeptin-54 at the receptor level in vitro and in animal studies.²⁸

expert opinionKisspeptin is the master switch for human reproduction. It is the hormone that tells your brain to start producing the signals that drive sex hormone production and fertility.²⁹

expert opinionKisspeptin-10 is a 10-amino-acid neuropeptide that sits at the very top of the reproductive hormone cascade—above GnRH, above LH and FSH, above testosterone and estrogen.²⁹

expert opinionKisspeptin-10 is a GPR54 (KISS1R) agonist—activates Gq-coupled receptor on GnRH neurons, triggering GnRH release and the entire downstream HPG axis cascade.²⁹

expert opinionKisspeptin-10 consists of the 10 C-terminal amino acids (Tyr-Asn-Trp-Asn-Ser-Phe-Gly-Leu-Arg-Phe-NH2) of the larger kisspeptin-54 molecule³⁰

expert opinionThe KISS1 gene was originally identified in 1996 as a metastasis suppressor gene in melanoma cells³⁰

expert opinionIn 2001, two independent groups identified kisspeptin-54 and its shorter fragments as the endogenous ligands for the orphan G protein-coupled receptor GPR54, now designated KISS1R³⁰

expert opinionAll kisspeptin fragments share the identical C-terminal decapeptide sequence which contains the RF-amide motif (Arg-Phe-NH2) essential for receptor binding and activation³⁰

expert opinionKisspeptin neurons in the arcuate and anteroventral periventricular (AVPV) nuclei of the hypothalamus are recognized as the primary upstream regulators of gonadotropin-releasing hormone (GnRH) neurons³⁰

expert opinionKp-10 is a full agonist at the KISS1R (GPR54), a Gq/11-coupled receptor expressed on GnRH neurons in the hypothalamus³⁰

expert opinionBinding of Kp-10 to KISS1R activates phospholipase C, generating inositol trisphosphate (IP3) and diacylglycerol (DAG), which mobilize intracellular calcium and activate protein kinase C³⁰

expert opinionThe RF-amide motif (Arg-Phe-NH2) is the minimum pharmacophore required for KISS1R binding³⁰

expert opinionKisspeptins are highly selective for KISS1R, with minimal cross-reactivity at other RF-amide peptide receptors at physiological concentrations³⁰

expert opinionContinuous or sustained KISS1R activation leads to receptor desensitization and downregulation, resulting in suppression rather than stimulation of gonadotropin secretion³⁰

anecdotalKisspeptin-10 works upstream, triggering the brain to release GnRH naturally rather than artificially pumping hormones into the system²³

theoreticalKisspeptin-10 is thought to stimulate the release of GnRH from the hypothalamus, which then stimulates gonadotropin release from the pituitary gland³

theoreticalKisspeptin-10 is a biologically active peptide that is a product of the KISS1 gene, consisting of a conserved C-terminal 10-amino acid sequence, which is crucial for its receptor binding activity to the G protein-coupled receptor GPR54⁸

theoreticalThe KISS1 gene encodes the 145 amino acid pre-pro-peptide which is biologically inactive⁸

theoreticalPost-translational modification produces four biologically active peptides designated kisspeptin-54, -14, -13 and -10, on the basis of their total amino acid number⁸

theoreticalThe four kisspeptins share a common C-terminal Arg-Phe-NH2 motif⁸

theoreticalThe four kisspeptins bind with similar affinity to the KISS1R indicating the C-terminal motif is important in binding and activating KISS1R⁸

theoreticalHuman KISS1R is a 398 amino acid class A GPCR present on chromosome 19p13⁸

theoreticalHuman KISS1R signals predominantly to the Gq/11 pathway, with very little coupling to other subfamilies⁸

theoreticalIn silico algorithms demonstrated surface complementarities between KP-10 and α-syn, with KP-10 accommodated in the C-terminal binding pockets of α-syn¹⁵

theoreticalKisspeptin-10 is an active fragment of the endogenous full-length kisspeptin-145¹⁷

theoreticalKISS1 is a precursor for several shorter peptides, known as metastin (Kisspeptin-54), Kisspeptin-14, Kisspeptin-13 and Kisspeptin-10¹⁹

expert opinionKisspeptin-10 has a very short half-life of approximately 4 minutes²⁵

expert opinionKisspeptin-54, -14, -13, and -10 all bind GPR54 with low-nanomolar affinity²⁶

expert opinionKisspeptin-10 is rapidly degraded in plasma by endopeptidases, with a circulating half-life of approximately four minutes following intravenous bolus dosing.²⁸

expert opinionThe downstream effect on LH secretion persists for 60 to 120 minutes because the gonadotropin response unfolds on a slower timescale than peptide clearance.²⁸

expert opinionKp-10 has a short half-life of approximately 4 minutes compared to approximately 28 minutes for Kp-54³⁰

anecdotalInjectable Kisspeptin-10 triggers a detectable rise in luteinizing hormone (LH) within 10 to 15 minutes following subcutaneous or intravenous injection²³

anecdotalPeak LH concentrations typically occur between 30 and 45 minutes after administration, with levels potentially doubling or tripling from baseline values²³

anecdotalFollicle-stimulating hormone (FSH) responds more gradually, reaching peak levels approximately 45 to 150 minutes post-injection²³

anecdotalTestosterone elevation requires sustained LH activity, with meaningful increases observed during continuous infusion protocols lasting several hours²³

anecdotalThe peptide's effects persist for approximately 24 hours, though the active half-life in circulation is relatively short at around 4 minutes for intravenous delivery and somewhat longer for subcutaneous routes²³

expert opinionGPR54 antagonist may be useful for the prevention and treatment of atherosclerosis¹⁸

expert opinionUse outside research settings is investigational²⁴

expert opinionInvestigational stimulation of the hypothalamic-pituitary-gonadal (HPG) axis for diagnostic evaluation of hypogonadotropic hypogonadism²⁴

expert opinionResearch applications in fertility induction²⁴

expert opinionAdjunct investigation alongside testosterone replacement therapy²⁴

expert opinionOvarian stimulation in assisted reproduction research²⁴

expert opinionPulsatile LH/FSH stimulation in men with hypogonadotropic hypogonadism (investigational)²⁴

expert opinionTriggering of the LH surge in IVF cycles (ongoing research)²⁴

expert opinionKisspeptin serves as a probe: a brisk LH response confirms intact GnRH and pituitary function²⁴

expert opinionIt is available through licensed compounding pharmacies by prescription, and it has been used in hospital-based research and diagnostic protocols in the United Kingdom and United States²⁶

expert opinionRecent studies have investigated the association of kisspeptins to infertility of diverse causes and the therapeutic potential²⁷

expert opinionIn men this translates downstream into a measurable testosterone rise; in women it can substitute for hCG as an ovulation trigger during in vitro fertilization.²⁸

expert opinionKp-10 has been primarily used as a research and diagnostic tool to probe the kisspeptin-GnRH axis in human studies³⁰

anecdotalTrevor Hutchinson administered 100 micrograms subcutaneously every three days and noticed mental fog clearing within the first week²³

theoreticalKISS1 has potential use as a diagnostic marker for cancer progression¹⁹

theoreticalKISS1 has potential use as a new anti-cancer therapeutic¹⁹