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Longevity

Humanin Guía & Tabla de Dosis

A mitochondrial-derived peptide studied for cytoprotection.

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Humanin — Tabla de dosis
Cada fila citada
ObjetivoDosisFrecuenciaDuraciónEvidenciaFuente
Neuropathic pain attenuation (metabolic, toxic, traumatic models) 4 mg 1x/day 15 days Preclinical PMID 39510375
Solo para uso de investigación y educativo. No es consejo médico.

What is Humanin?

Humanin is a tiny peptide — just 24 amino acids long — that your mitochondria naturally produce. Mitochondria are the power plants inside your cells, and for decades scientists thought their main job was simply making energy. Then researchers discovered that mitochondria also send out small chemical signals. Humanin was the first peptide ever found to be encoded directly in the mitochondrial genome, making it the founding member of a new class of molecules called mitochondrial-derived peptides (MDPs).[4]

It was originally discovered in brain tissue from an Alzheimer's disease patient, where it appeared to fight back against the nerve-cell death that the disease causes.[3] Since then, scientists have found it active in many tissues across the body, from the heart to the reproductive system.[5]

Important note: Humanin is a research compound. Everything on this page describes laboratory and preclinical findings. It is not approved for human therapeutic use, and nothing here is medical advice.

How Humanin Works

Think of Humanin as a distress signal with a protective payload. When a cell is under stress — whether from toxic chemicals, low oxygen, or the slow damage of aging — mitochondria release Humanin. It then acts like a tiny shield, telling the cell not to self-destruct.

More specifically, Humanin dials down a process called apoptosis (programmed cell death). It does this partly by interacting with the BCL-2 family of proteins, which act like a molecular on/off switch for cell death, and by activating the JAK/STAT signaling pathway, a key communication line inside cells.[5] It also limits oxidative stress — harmful chemical reactions that damage cell machinery — by inhibiting a part of the mitochondria called complex I.[6]

Humanin also interacts with IGF-I (insulin-like growth factor 1), a hormone involved in growth, metabolism, and aging. Research shows that Humanin can bind to IGFBP-3 (a protein that carries IGF-I in the blood) and appears to lower circulating IGF-I levels, suggesting it plays a meaningful role in metabolic signaling.[4]

What the Research Shows

A 2023 systematic review summarized evidence linking Humanin to multiple aging-related processes. Researchers found it may help counteract cardiovascular disease, neurodegeneration, and even cancer by preserving mitochondrial function and cell viability under senescent (aged) and stressful conditions.[1]

In Alzheimer's disease research, Humanin has shown the ability to block several disease-related mechanisms at once — including the buildup of amyloid plaques, which are the sticky protein deposits that clog the brain in AD — while protecting neurons from dying.[3]

Heart research is another active area. A review in Archives of Cardiovascular Diseases highlighted Humanin's ability to reduce oxidative stress in cardiac tissue and suggested it could serve as both a marker of mitochondrial health and a potential pharmacological strategy for patients with endothelial dysfunction (damage to the inner lining of blood vessels).[6]

Humanin also shows up in reproductive biology. Studies indicate it helps protect egg and sperm cells from oxidative stress and apoptosis, and researchers are exploring its potential roles in male infertility, contraception, and conditions like polycystic ovary syndrome (PCOS).[2]

Across multiple disease models — including bone loss (osteoporosis), diabetes, and neurodegenerative conditions — preclinical data consistently point to Humanin reducing unwanted cell death.[5]

What Humanin Is Being Studied For

  • Neuroprotection: Blocking neuron death in Alzheimer's disease and other brain conditions.[3]
  • Cardiovascular health: Reducing oxidative stress and protecting heart and blood-vessel tissue.[6]
  • Longevity and aging: Countering cellular senescence and age-related tissue decline.[1]
  • Metabolic disease: Improving insulin signaling and outcomes in type 2 diabetes models.[6]
  • Reproductive health: Protecting germ cells and potentially addressing infertility.[2]
  • Cancer: Influencing apoptosis in tumor cells via TNF-α pathways.[5]
  • Neuropathic pain: Attenuation of pain signals in metabolic, toxic, and traumatic models (see dosage chart).

How Humanin Is Dosed in Research

Research protocols vary depending on the model and the condition being studied. For neuropathic pain attenuation across metabolic, toxic, and traumatic models, the dosage chart on this page outlines the parameters investigators have used — and you can plug your own study variables into the calculator to explore scaling. Always refer to peer-reviewed protocols before designing any experiment involving this compound.

Mixing and Storing Humanin

Like most research peptides, Humanin is typically supplied as a lyophilized (freeze-dried) powder. To reconstitute it, researchers generally add bacteriostatic water slowly down the side of the vial — not directly onto the powder — then gently swirl (never shake) until fully dissolved. Shaking can break the delicate peptide chains. Once reconstituted, the solution should be stored in a refrigerator at 2–8 °C and used within a few weeks, or frozen at –20 °C for longer-term storage. Protect vials from direct light, which can degrade the peptide. Always label vials with the reconstitution date and concentration. These are general laboratory best practices; always follow the specific guidance provided with your research-grade material.

Sources

  1. Humanin and Its Pathophysiological Roles in Aging: A Systematic Review. — Biology, 2023. PMID 37106758.
  2. The role of humanin in the regulation of reproduction. — Biochimica et biophysica acta. General subjects, 2022. PMID 34626748.
  3. Humanin and Alzheimer's disease: The beginning of a new field. — Biochimica et biophysica acta. General subjects, 2022. PMID 34626746.
  4. Humanin: Functional Interfaces with IGF-I. — Growth hormone & IGF research : official journal of the Growth Hormone Research Society and the International IGF Research Society, 2016. PMID 27082450.
  5. Humanin: A mitochondrial-derived peptide in the treatment of apoptosis-related diseases. — Life sciences, 2021. PMID 33130077.
  6. Role of humanin, a mitochondrial-derived peptide, in cardiovascular disorders. — Archives of cardiovascular diseases, 2020. PMID 32680738.

Humanin Preguntas

What is Humanin?
Humanin is a 24-amino-acid peptide encoded directly in mitochondrial DNA — the genetic material inside your cells' power plants. It was the first peptide ever discovered to come from the mitochondrial genome and is the founding member of a class called mitochondrial-derived peptides (MDPs).[4] It plays a cytoprotective role, helping cells survive stress and damage.[1]
How does Humanin work?
Humanin works mainly by blocking apoptosis — the process by which damaged or stressed cells self-destruct. It interacts with BCL-2 family proteins and activates the JAK/STAT signaling pathway to keep cells alive under stress.[5] It also reduces oxidative stress by inhibiting mitochondrial complex I activity[6] and interacts with IGF-I signaling pathways involved in metabolism and aging.[4]
What is Humanin used for in research?
Researchers are studying Humanin in the context of Alzheimer's disease[3], cardiovascular disease[6], aging and cellular senescence[1], metabolic disorders like type 2 diabetes, reproductive health including male and female infertility[2], bone loss, cancer, and neuropathic pain. It is a research compound only — not approved for human therapeutic use.[5]
How is Humanin dosed in research?
Dosing depends heavily on the research model and endpoint. For neuropathic pain attenuation studies across metabolic, toxic, and traumatic models, see the dosage chart on this page for the specific parameters used in preclinical research. Use the calculator on this page to explore other variables. Always base experimental dosing on peer-reviewed protocols.
How do you reconstitute Humanin?
Humanin powder is reconstituted by slowly adding bacteriostatic water down the inside wall of the vial, then gently swirling — never shaking — until dissolved. Once in solution, store at 2–8 °C for short-term use or freeze at –20 °C for longer storage. Keep away from direct light. Label vials with the date and concentration. Follow the specific guidance included with your research-grade material.
Is Humanin safe?
Humanin is an endogenous peptide — the body produces it naturally — which researchers consider a positive sign for tolerability.[1] Preclinical studies have not highlighted major toxicity concerns, but comprehensive human safety data are not yet available. It is strictly a research compound, not approved for therapeutic use in humans, and should only be handled in appropriate research settings.