Humanin

European journal of pharmacology · 2025

Researchers reviewed the role of Humanin, a micropeptide linked to brain health, in Alzheimer's disease. They found that Humanin may protect neurons from damage caused by toxic proteins and oxidative stress, but its levels can vary in older adults and Alzheimer's patients, leading to conflicting results about its effectiveness.

• Humanin has neuroprotective effects against Alzheimer's disease by improving brain function and reducing oxidative stress.
• Aging decreases the brain's production of Humanin, which may contribute to cognitive decline and increased risk of neurodegeneration.
• There are conflicting reports on Humanin levels in Alzheimer's patients, indicating a complex role in the disease's progression.

Biology · 2023

Researchers found that humanin, a peptide derived from mitochondria, has protective effects on brain cells, particularly against damage related to Alzheimer's disease. The review highlights various studies showing how humanin and its synthetic analogues may benefit not only neurodegenerative conditions but also other diseases like diabetes and cardiovascular issues.

• Humanin has been shown to protect neuronal cells from death caused by Alzheimer's-related factors.
• The peptide exhibits beneficial effects in various diseases beyond neurodegeneration, including age-related macular degeneration and diabetes.
• The review discusses the mechanisms through which humanin and its analogues exert neuroprotective actions and their potential for future research.

Alzheimer's research & therapy · 2023

Researchers studied the effects of exercise on brain health in Alzheimer's patients by analyzing neuron-derived extracellular vesicles (NDEVs) in their blood. They found that exercise increased levels of protective proteins in the blood, particularly in patients with a specific genetic risk factor, suggesting that physical activity may enhance brain health in these individuals.

• Exercise led to increased levels of neuroprotective proteins proBDNF, BDNF, and humanin in the blood of Alzheimer's patients.
• Patients with the APOE ε4 genetic variant showed a greater response to the neuroprotective effects of exercise.
• Levels of other exercise-related factors in the blood did not change, indicating different pathways may be involved in the brain's response to physical activity.

Biochimica et biophysica acta. General subjects · 2022

Researchers observed that humanin, a peptide derived from mitochondria, plays a significant role in regulating reproductive health in both males and females. The study highlights its protective effects against cellular stress in reproductive organs, suggesting potential therapeutic applications for issues like infertility and polycystic ovary syndrome.

• Humanin helps regulate the response of reproductive cells to oxidative stress and cell death.
• The peptide's protective role is particularly important when the body is under abnormal conditions.
• Further research is needed to fully understand humanin's mechanisms and its potential clinical applications in reproductive health.

Biochimica et biophysica acta. General subjects · 2022

Researchers observed that Humanin (HN), a peptide found in the brains of Alzheimer's disease patients, may protect against cell death linked to the disease. This review highlights HN's various actions that counteract harmful processes associated with Alzheimer's, including the buildup of amyloid plaques. The findings suggest that HN could play a significant role in understanding and potentially addressing Alzheimer's disease.

• Researchers found that Humanin is involved in protecting neurons from damage caused by Alzheimer's disease.
• The study noted that Humanin can counteract multiple harmful mechanisms associated with Alzheimer's, including amyloid plaque accumulation.
• The review provides insights into the historical discovery of Humanin and its potential implications for future Alzheimer's research.

Archives of cardiovascular diseases · 2020

Researchers reviewed the role of humanin, a peptide produced by mitochondria, in cardiovascular health. They found that humanin may help regulate metabolism and reduce oxidative stress, which could be beneficial for conditions like type 2 diabetes and endothelial dysfunction.

• Humanin is involved in the cellular response to stress and helps regulate metabolism.
• The peptide may reduce oxidative stress by inhibiting mitochondrial complex 1 activity.
• Humanin could serve as a marker for mitochondrial function in cardiovascular disease.

Expert opinion on therapeutic targets · 2019

Researchers observed that humanin, a peptide derived from mitochondria, plays a significant role in protecting cells from stress and damage. The study highlights its potential as a therapeutic target for various chronic conditions, including neurodegenerative diseases, cardiovascular issues, diabetes, male infertility, and cancer. Additionally, humanin can serve as a biomarker for these diseases.

• Researchers found that humanin has protective effects against harmful stimuli in different cell types.
• The study discusses the potential of humanin and its analogs as targets for treating chronic diseases.
• Humanin can be detected in the bloodstream, making it a valuable biomarker for several health conditions.

Molecular neurobiology · 2010

Researchers observed that Humanin, a small peptide, may protect brain cells from damage associated with Alzheimer's disease. The study reviewed how Humanin interacts with specific receptors on neurons to prevent cell death and dysfunction linked to the disease. These findings suggest that Humanin could play a role in delaying the onset of Alzheimer's-related dementia.

• Humanin is a 24-amino-acid peptide that protects neurons from Alzheimer's-related damage.
• The peptide works by binding to specific receptors on the surface of nerve cells.
• Research indicates that Humanin may help prevent the progression of Alzheimer's disease by reducing neuronal cell death.

Molecular neurobiology · 2004

Researchers observed that Humanin (HN), a small protein made of 24 amino acids, can protect brain cells from damage related to Alzheimer's disease. The study highlights HN's ability to prevent cell death caused by toxic substances associated with Alzheimer's, suggesting its potential as a therapeutic target. Additionally, HN appears to influence both brain and blood vessel cells in response to these toxic conditions.

• HN suppresses neuronal cell death caused by Alzheimer's-related toxins.
• HN protects cerebrovascular smooth muscle cells from amyloid-beta toxicity.
• HN activates cellular signaling pathways that may help prevent cell death.

Trends in molecular medicine · 2004

Researchers explored the role of Humanin (HN), a protein that protects brain cells from damage related to Alzheimer's disease. They found that HN may prevent cell death through different mechanisms, including interactions with specific proteins and receptors in cells.

• Researchers observed that Humanin acts as a protective factor against cell death in brain cells affected by Alzheimer's disease.
• The study revealed that HN interacts with a protein called Bax, which is involved in cell death.
• Researchers noted that HN is produced in normal tissues, suggesting it may also play a role in cancer development.