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Humanin

HN, S14G-Humanin

A mitochondrial-derived peptide that protects against apoptosis, oxidative stress, and has potential in neurodegenerative and metabolic diseases.

Quick Stats
Studies 491
Trials 100
Formula C119H204N34O32S2
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Utility 3
pubmed Nov 16, 2021

Single-cell transcriptomic profiles reveal changes associated with BCG-induced trained immunity and protective effects in circulating monocytes.

Kong. Lingjia L; Moorlag. Simone J C F M SJCFM; Lefkovith. Ariel A; Li. Bihua B; Matzaraki. Vasiliki...

The study shows that the BCG vaccine reshapes immune cells, lowering overall inflammation and changing how they react to bacterial signals. It highlights a group of humanin variants that, when tested in the lab, can trigger a similar ‘trained immunity’ effect. While this points to humanin as a potential immune‑boosting tool, the findings are still early‑stage and haven’t been tested in people yet.

Utility 3
pubmed Sep 11, 2021

Mitochondrial-derived peptides and exercise.

Woodhead. Jonathan S T JST; Merry. Troy L TL

Intense aerobic workouts temporarily raise the levels of the mitochondrial peptide humanin (and MOTS‑c) in muscle and blood, showing they act like a natural signal during exercise. In mice, giving MOTS‑c improves stamina, helps lose weight, boosts antioxidant defenses and improves insulin sensitivity, but we don’t yet have human dosing or safety data. The long‑term effects of regular training on these peptides are still unclear and may depend on how you train.

Utility 3
pubmed Sep 24, 2020

Involvement of the mitochondrial nuclease EndoG in the regulation of cell proliferation through the control of reactive oxygen species.

Blasco. Natividad N; Beà. Aida A; Barés. Gisel G; Girón. Cristina C; Navaridas. Ra&#x...

The study shows that the tiny protein Humanin can help cells keep dividing even when a mitochondrial enzyme (EndoG) is missing, by fixing a signaling pathway (AKT) that’s blocked by high reactive oxygen species (ROS). It doesn’t lower ROS itself, but it still restores cell growth.

Utility 3
pubmed May 2, 2022

Mitochondria-derived peptides in aging and healthspan.

Miller. Brendan B; Kim. Su-Jeong SJ; Kumagai. Hiroshi H; Yen. Kelvin K; Cohen. Pinchas P

This review explains that tiny proteins made by mitochondria, like humanin, may help protect cells and influence aging, metabolism, and brain health, pointing to new ways to tackle age‑related diseases.

Utility 3
pubmed Sep 10, 2021

Emerging contributions of formyl peptide receptors to neurodegenerative diseases.

Busch. Lukas L; Vieten. Stefan S; Brödel. Susan S; Endres. Kristina K; Bufe. Bernd B

This review explains that a group of receptors called formyl peptide receptors (FPRs) play a big role in brain inflammation linked to diseases like Alzheimer’s. One of the natural proteins that can bind these receptors is humanin, which appears to protect brain cells. Blocking FPRs in experiments reduced inflammation, hinting that targeting this system could be a future way to support brain health.

Utility 3
pubmed Dec 28, 2021

Mitochondrial-derived peptides: New markers for cardiometabolic dysfunction.

Rochette. Luc L; Rigal. Eve E; Dogon. Geoffrey G; Malka. Gabriel G; Zeller. Marianne M; Vergely. Cat...

This review says that tiny proteins made by mitochondria, like humanin, float in your blood and give clues about how well your cells' power plants are working. Higher or lower levels can signal problems with heart, metabolism, or weight, and these peptides also protect cells from stress and inflammation. While the paper doesn’t give a specific supplement plan, it suggests that tracking humanin could become a useful health metric and that boosting it might help with longevity and metabolic health.

Utility 3
pubmed Sep 7, 2022

Transplantation of Astrocytic Mitochondria Modulates Neuronal Antioxidant Defense and Neuroplasticity and Promotes Functional Recovery after Intracerebral Hemorrhage.

Tashiro. Ryosuke R; Bautista-Garrido. Jesus J; Ozaki. Dan D; Sun. Guanghua G; Obertas. Lidiya L; Mob...

Scientists found that mitochondria released by brain support cells can travel into neurons, boost a key antioxidant enzyme (Mn‑SOD), cut oxidative damage, and help brain cells grow after a bleed. A tiny protein inside mitochondria called humanin can copy these benefits, suggesting it might protect brain cells from stress.

Utility 3
pubmed 2021

Neural cell-derived plasma exosome protein abnormalities implicate mitochondrial impairment in first episodes of psychosis.

Goetzl. Edward J EJ; Srihari. Vinod H VH; Guloksuz. Sinan S; Ferrara. Maria M; Tek. Cenk C; Heninger...

People experiencing their first episode of psychosis have lower levels of the mitochondrial‑protective peptide humanin (and other related proteins) in brain‑derived tiny particles in their blood, hinting that their mitochondria may be stressed. The authors suggest that boosting these low‑level peptides could become a treatment strategy, but they didn’t test any supplement or drug themselves.

Utility 3
pubmed Sep 21, 2018

Humanin Prevents Age-Related Cognitive Decline in Mice and is Associated with Improved Cognitive Age in Humans.

Yen. Kelvin K; Wan. Junxiang J; Mehta. Hemal H HH; Miller. Brendan B; Christensen. Amy A; Levine. Mo...

The study shows that giving the peptide humanin can protect brain cells in lab dishes, improve memory in older mice, and that people with a genetic variant that lowers humanin levels tend to age cognitively faster. This suggests humanin might help keep the brain sharp as we get older.

Utility 3
pubmed Oct 14, 2017

Humanin affects object recognition and gliosis in short-term cuprizone-treated mice.

Murakami. Minetaka M; Nagahama. Masatoshi M; Abe. Yoichiro Y; Niikura. Takako T

In mice that were given a chemical causing brain inflammation, a short‑term injection of a humanin‑derived peptide (HNG) helped them remember objects better and reduced the brain's inflammatory cells, though it didn’t improve other memory tasks or restore myelin levels.

Utility 3
pubmed Nov 29, 2017

Humanin is an endogenous activator of chaperone-mediated autophagy.

Gong. Zhenwei Z; Tasset. Inmaculada I; Diaz. Antonio A; Anguiano. Jaime J; Tas. Emir E; Cui. Linggua...

The study shows that the naturally occurring peptide humanin can turn on a cell-cleanup system called chaperone-mediated autophagy, which helps protect heart, brain and other cells from stress. A stronger version, HNG, works the same way, but the benefit disappears if that cleanup system is blocked.

Utility 3
pubmed May 18, 2018

Humanin analog enhances the protective effect of dexrazoxane against doxorubicin-induced cardiotoxicity.

Lue. Yanhe Y; Gao. Chen C; Swerdloff. Ronald R; Hoang. James J; Avetisyan. Rozeta R; Jia. Yue Y; Rao...

In mice, a synthetic version of the naturally‑occurring peptide humanin (called HNG) helped protect the heart from damage caused by the chemotherapy drug doxorubicin, especially when used together with the approved heart‑protective drug dexrazoxane. The combo was better than either one alone and didn’t cause any heart problems by itself.

Utility 3
pubmed Dec 21, 2017

Humanin decreases mitochondrial membrane permeability by inhibiting the membrane association and oligomerization of Bax and Bid proteins.

Ma. Ze-Wei ZW; Liu. Dong-Xiang DX

Humanin is a tiny protein that can stick to two other proteins, Bax and Bid, that normally go to the cell's power plants (mitochondria) and help open holes that lead to cell death. By binding these proteins, humanin stops them from gathering at the mitochondria and forming the deadly pores, which keeps the cells healthier. This study shows how humanin works at a molecular level, but it was done in test‑tube experiments, not in people.

Utility 3
pubmed Sep 29, 2018

Humanin Attenuates NMDA-Induced Excitotoxicity by Inhibiting ROS-dependent JNK/p38 MAPK Pathway.

Yang. Xiaorong X; Zhang. Hongmei H; Wu. Jinzi J; Yin. Litian L; Yan. Liang-Jun LJ; Zhang. Ce C

Humanin, a tiny protein made of 24 amino acids, helped brain cells survive a toxic hit that mimics what happens in strokes or neurodegeneration. It did this by lowering the surge of calcium inside the cells, cutting down harmful reactive oxygen molecules, and turning off stress‑signaling pathways (JNK and p38). The work was done in a dish, not in people, but it shows humanin can protect neurons at a cellular level.

Utility 3
pubmed May 20, 2020

Humanin Blocks the Aggregation of Amyloid-β Induced by Acetylcholinesterase, an Effect Abolished in the Presence of IGFBP-3.

Price. Deanna D; Dorandish. Sadaf S; Williams. Asana A; Iwaniec. Brandon B; Stephens. Alexis A; Mars...

The study shows that the humanin peptide can stop harmful clumping of amyloid‑beta (a protein linked to Alzheimer’s) that is made worse by the enzyme acetylcholinesterase, but this protective effect disappears when another protein, IGFBP‑3, is present. In cell experiments, adding IGFBP‑3 reduced humanin’s ability to bind amyloid‑beta and led to more toxic protein clumps and cell death.

Utility 3
pubmed Nov 5, 2019

Humanin induces conformational changes in the apoptosis regulator BAX and sequesters it into fibers, preventing mitochondrial outer-membrane permeabilization.

Morris. Daniel L DL; Kastner. David W DW; Johnson. Sabrina S; Strub. Marie-Paule MP; He. Yi Y; Bleck...

The study shows that the mitochondrial peptide humanin can stick to the cell‑death protein BAX and pull it into thread‑like fibers, which stops BAX from punching holes in mitochondria and triggering apoptosis. This effect was seen in test‑tube experiments and helps explain how humanin protects cells, but it doesn’t yet tell us how to use it in people.

Utility 3
pubmed Aug 26, 2019

Humanin suppresses receptor activator of nuclear factor-&#x3ba;B ligand-induced osteoclast differentiation <i>via</i> AMP-activated protein kinase activation.

Kang. Namju N; Kim. Ki Woo KW; Shin. Dong Min DM

Humanin, a tiny peptide from mitochondria, can turn on the AMPK pathway and block the signals that make bone‑breaking cells (osteoclasts) form, at least in lab‑grown mouse bone‑marrow cells. It also lowers oxidative stress in those cells, suggesting it might help protect bone health.

Utility 3
pubmed Aug 10, 2017

The Mitochondrial-Derived Peptides, HumaninS14G and Small Humanin-like Peptide 2, Exhibit Chaperone-like Activity.

Okada. Alan K AK; Teranishi. Kazuki K; Lobo. Fleur F; Isas. J Mario JM; Xiao. Jialin J; Yen. Kelvin...

Researchers found that two tiny proteins made by mitochondria, called HNG (a humanin variant) and SHLP2, can stop the sticky clumps of a diabetes‑related protein (IAPP) from forming, even at very low amounts. They work by latching onto the early, misfolded clumps rather than the normal protein, acting like a molecular chaperone, which could protect pancreatic cells and help manage type‑2 diabetes in the future.

Utility 3
pubmed Dec 26, 2017

S14G-humanin alleviates insulin resistance and increases autophagy in neurons of APP/PS1 transgenic mouse.

Han. Kun K; Jia. Ning N; Zhong. Yi Y; Shang. Xiuli X

A modified form of the peptide humanin (called S14G‑humanin or HNG) helped Alzheimer‑model mice think better by fixing brain insulin signaling and boosting the cell’s cleanup system, which also lowered harmful amyloid plaques. The study was done in mice, not people, so it shows promise but isn’t a ready‑to‑use protocol for humans.