Arginine is considered a semi-essential amino acid because even though the body normally makes enough of it, supplementation is sometimes needed. For example, people with protein malnutrition, excessive ammonia production, excessive lysine intake, burns, infections, peritoneal dialysis, rapid growth, urea synthesis disorders, or sepsis may not have enough arginine. Symptoms of arginine deficiency include poor wound healing, hair loss, skin rash, constipation, and fatty liver.
Arginine changes into nitric oxide, which causes blood vessel relaxation (vasodilation). Early evidence suggests that arginine may help treat medical conditions that improve with vasodilation, such as chest pain, clogged arteries (called atherosclerosis), coronary artery disease, erectile dysfunction, heart failure, intermittent claudication/peripheral vascular disease, and blood vessel swelling that causes headaches (vascular headaches). Arginine also triggers the body to make protein and has been studied for wound healing, bodybuilding, enhancement of sperm production (spermatogenesis), and prevention of wasting in people with critical illnesses.
Arginine hydrochloride has a high chloride content and has been used to treat metabolic alkalosis. This use should be under the supervision of a qualified healthcare professional.
The study finds that unsalted peanuts may enhance brain insulin responsiveness, providing new insights into dietary influences on cognitive health in aging.
Worldwide, antibiotic resistance is associated with millions of deaths every year, and the World Health Organization warns that the number of resistant infections is rising.
Researchers in Japan engineered ancestral nucleoside diphosphate kinase variants with restricted amino acid repertoires to explore alternative catalytic functions. One variant, Arc1-12KR, retained its protein fold despite lacking catalytic histidine and unexpectedly converted two ADP molecules into ATP and AMP. The findings reveal alternative catalytic potential in simplified proteins and offer clues to possible routes of energy metabolism during early protein evolution.
Researchers found that chronic systolic heart failure caused by nonischemic cardiomyopathy was associated with reduced gut microbial diversity, depletion of Bifidobacterium, and lower microbial short-chain fatty acid production potential. Higher Bifidobacterium abundance and higher circulating indole-3-propionic acid levels were associated with milder disease and clinical improvement, although the findings do not establish causality.
A review published in Genes & Diseases highlights the complex interplay between protein arginine methylation and ubiquitination, two forms of protein modification that can profoundly influence cancer development, progression and treatment response.
Clear cell renal cell carcinoma (ccRCC), the most common subtype of kidney cancer, is increasingly understood as a malignancy shaped by profound changes in cellular metabolism.
Researchers developed a Cannabis sativa hairy root culture system that produced stable plant-derived nanovesicles capable of promoting dendritic cell maturation and activating T-cell responses through TLR2- and TLR4-associated signaling. Oral administration also restored selected immune responses in immunosuppressed mice and suppressed tumor growth in an E.G7 lymphoma model, providing preliminary evidence for their immunomodulatory and antitumor potential.
Everyone knows the number. Eight hours. It sits on wellness dashboards, on pediatric handouts, on the label of the melatonin bottle in the medicine cabinet.
A secondary analysis of 7,067 nulliparous participants found that first-trimester protein intake of 0.8 to less than 1.1 g/kg/day was associated with 22% lower adjusted odds of delivering an SGA infant than intake of at least 1.1 g/kg/day. The association was exploratory, with no dose-response pattern and no confirmation in sensitivity analyses.
A review finds that restricting protein, particularly methionine, isoleucine, and valine, may improve metabolism and influence key aging pathways, largely in experimental models. Short human studies suggest metabolic benefits, but effects on lifespan remain unknown and restriction may harm people with unmet or increased protein needs.
The amino acid arginine helps to keep the human body humming, most notably by synthesizing proteins that carry out a range of cellular processes.
Cardiomyopathies are a group of mostly hereditary, rare heart diseases in which the structure of the heart muscle tissue is impaired.
This review finds that spermidine supports autophagy, mitochondrial function, and healthspan in experimental models, while observational studies link higher dietary intake to lower mortality. However, human trials have produced limited and mixed results, leaving its clinical role in healthy aging unresolved.
Portable screen-printed carbon electrode (SPCE) biosensors offer a rapid and low-cost way to detect microcystin-lysine-arginine (MC-LR), an extremely potent toxin produced by cyanobacteria during harmful algal blooms in freshwater.
Tumor-associated macrophages (TAMs) are among the most abundant immune cells in the tumor microenvironment.
IRI is a shared pathological process in myocardial infarction, ischaemic stroke, acute kidney injury, lung injury, and graft dysfunction after transplantation.
Researchers from the University of Cambridge highlight new ways that neurons and many cell types use to sense nutrients - opening potential novel therapeutic avenues for disorders such as Alzheimer's and Parkinson's disease.
A team led by Professor Wei Yang at the National Institute of Pathogen Biology, Chinese Academy of Medical Sciences & Peking Union Medical College, has developed a computational-experimental pipeline that synergistically optimizes antibody framework regions (FR) and complementarity-determining regions (CDR).
Creatine, a compound often associated with gym-goers and athletes, has long been touted as a performance-enhancing supplement. But beyond the hype, what does science actually reveal about its effects on the body and mind?
This review explains how glucose scarcity, lipid disruption, amino acid deprivation, and toxic metabolites weaken CAR-T cells inside solid tumors. It highlights metabolic reprogramming as a promising strategy to improve CAR-T cell persistence, adaptability, and anti-tumor function.
Terms
While we only use edited and approved content for Azthena
answers, it may on occasions provide incorrect responses.
Please confirm any data provided with the related suppliers or
authors. We do not provide medical advice, if you search for
medical information you must always consult a medical
professional before acting on any information provided.
Your questions, but not your email details will be shared with
OpenAI and retained for 30 days in accordance with their
privacy principles.
Please do not ask questions that use sensitive or confidential
information.
Read the full Terms & Conditions.