Visao Geral Oxytocin (OXT) is a cyclic nonapeptide hormone and neuropeptide with a sequencia Cys-Tyr-Ile-Gln-Asn-Cys-Pro-Leu-Gly-NH₂, featuring a ponte dissulfeto between Cys¹ and Cys⁶ e um(a) C-terminal amide (MW 1007.19 Da).[1] Historical significance: The uterine-contracting properties of pituitary extracts were descoberto(a) por Sir Henry Dale in 1906. In 1953, Vincent du Vigneaud sequenced and synthesized oxytocin — the first polypeptide hormone ever synthesized — earning the Nobel Prize in

How does Oxytocin work? What is its mechanism of action?

Mecanismo de Acao Primary Target: Oxytocin Receptor (OXTR) The OXTR is a Class-I rhodopsin-type GPCR (chromosome 3p25). High-affinity binding requer Mg²⁺ and cholesterol (cholesterol stabilizes high-affinity state). Ile³ and Leu⁸ confer selectivity over AVP receptors.[3][5] 1. Gαq/11 Pathway (Contractile — Primary) O(a) principal via de sinalizacao in myometrium and mammary glands:[3] OXTR → Gαq/11 → Phospholipase C (PLC) PLC → PIP₂ hidrolise → IP₃ + DAG IP₃ → Ca²⁺ release from sarcoplasmic reti

What are the research applications of Oxytocin?

Aplicacoes de Pesquisa Oxytocin research spans obstetrics, neuropsychiatry, metabolic disease, and cardiovascular health with extensive clinical and predados clinicos across 5+ indication categories: Autism Spectrum Disorder — Meta-analysis of 12 RCTs (n=498) and a large trial (Sikich 2021, NEJM) report social-function endpoints.[7][8] Obesity & Metabolism — Plessow 2024 (NEJM Evidence): weight and caloric-intake endpoints. Espinoza 2021: sarcopenic-obesity pilot with lean-mass and lipid endpoin

What does the research summary say about Oxytocin?

Resumo da Pesquisa Pre-clinica Key Preclinical Studies EstudoModeloPrincipais AchadosRef Shin et al. (2025)12-mo C57BL/6J mice — 0.5 mg/kg, 13-wk designDiscrimination Index ↑ (p133%↑, NMDAR2B 101.7%↑[16] Chavez et al. (2024)Fmr1-KO mice (Fragile X/ASD) — IN OXT postnatal wk 2Fully restaurou episodic memory and hipocampal LTP in adulthood via NMDAR recovery[17] Elabd et al. (2014)Oxt-/- mice — sistemico(a) OXT rescuePremature sarcopenia/osteoporose confirmou; reversible with OXT; necessario(a) pa

How should Oxytocin be stored?

Refrigere 2–8°C. Significativa perda de atividade após 24h à temperatura corporal. NIOSH Group 3 fármaco perigoso — EPI necessário.

Oxytocin Research Applications — Scientific Studies & Evidence

Aplicacoes de Pesquisa

Oxytocin research spans obstetrics, neuropsychiatry, metabolic disease, and cardiovascular health with extensive clinical and predados clinicos across 5+ indication categories:

Autism Spectrum Disorder — Meta-analysis of 12 RCTs (n=498) and a large trial (Sikich 2021, NEJM) report social-function endpoints.[7][8]
Obesity & Metabolism — Plessow 2024 (NEJM Evidence): weight and caloric-intake endpoints. Espinoza 2021: sarcopenic-obesity pilot with lean-mass and lipid endpoints.[9][10]
Neuropsychiatric Disorders — Schizophrenia, anxiety, BPD; modula amygdala activity, reduz fear responses; context-dependent in BPD (may exacerbate hypermentalization).[11]
Protecao Cardiovascular — ANP release, NO-mediated vasodilatacao, anti-inflamatorio(a) in aterosclerose; Petersson 1996: 21 mmHg SBP reduction in SHR rats.[6][12]
Prader-Willi Syndrome — CARE-PWS Phase 3: carbetocin hyperphagia endpoints; Hollander 2021 (n=35, 8 weeks): hyperphagia and repetitive-behavior endpoints reported.[13]
Addiction & Substance Use — Opioid/alcohol/stimulant craving reduction via nucleus accumbens reward circuitry modulacao.[3]
Pain Management — Positive allosteric modulator of mu-opioid receptors; spinal nociceptive inibicao.[3]
Sarcopenia & Aging — OXT necessario(a) para muscle stem cell regeneration; Oxt-/- mice develop premature sarcopenia/osteoporose, reversible with OXT.[14]
Postpartum Depression — Observational study (n=904) of intrapartum synOT examined postpartum-depression endpoints.[15]

Aplicacoes de Pesquisa

Oxytocin research spans obstetrics, neuropsychiatry, metabolic disease, and cardiovascular health with extensive clinical and predados clinicos across 5+ indication categories:

Autism Spectrum Disorder — Meta-analysis of 12 RCTs (n=498) and a large trial (Sikich 2021, NEJM) report social-function endpoints.[7][8]
Obesity & Metabolism — Plessow 2024 (NEJM Evidence): weight and caloric-intake endpoints. Espinoza 2021: sarcopenic-obesity pilot with lean-mass and lipid endpoints.[9][10]
Neuropsychiatric Disorders — Schizophrenia, anxiety, BPD; modula amygdala activity, reduz fear responses; context-dependent in BPD (may exacerbate hypermentalization).[11]
Protecao Cardiovascular — ANP release, NO-mediated vasodilatacao, anti-inflamatorio(a) in aterosclerose; Petersson 1996: 21 mmHg SBP reduction in SHR rats.[6][12]
Prader-Willi Syndrome — CARE-PWS Phase 3: carbetocin hyperphagia endpoints; Hollander 2021 (n=35, 8 weeks): hyperphagia and repetitive-behavior endpoints reported.[13]
Addiction & Substance Use — Opioid/alcohol/stimulant craving reduction via nucleus accumbens reward circuitry modulacao.[3]
Pain Management — Positive allosteric modulator of mu-opioid receptors; spinal nociceptive inibicao.[3]
Sarcopenia & Aging — OXT necessario(a) para muscle stem cell regeneration; Oxt-/- mice develop premature sarcopenia/osteoporose, reversible with OXT.[14]
Postpartum Depression — Observational study (n=904) of intrapartum synOT examined postpartum-depression endpoints.[15]

Oxytocin: Research Applications

Aplicacoes de Pesquisa

Referencias

Perguntas de Pesquisa Relacionadas

Related research

Oxytocin: Research Applications

Aplicacoes de Pesquisa

Referencias

Perguntas de Pesquisa Relacionadas

Related research