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.
A group from the MedUni Vienna has identified a role for the endogenous amino acid arginine in the growth of osteoclasts in rheumatoid arthritis.
A novel composite film -- created by the bonding of an antimicrobial layer to conventional, clear polyethylene plastic typically used to vacuum-package foods such as meat and fish -- could help to decrease foodborne illness outbreaks, according to researchers in Penn State's College of Agricultural Sciences.
Researchers at the CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences identified a key mechanism for how antiviral immune responses reprogram liver metabolism. Their recent study, which was published in the renowned scientific journal Immunity, investigated the communication between inflammation and liver metabolism during chronic viral infection.
A therapeutic monoclonal antibody and its Fab and Fc fragments were recently investigated using differential scanning fluorimetry, temperature-ramped dynamic light scattering, and turbidity measurements.
Researchers at the University of Liverpool have made a major breakthrough in the field of cell signalling.
New research may help to explain an intriguing phenomenon inside human cells: how wall-less liquid organelles are able to coexist as separate entities instead of just merging together.
Plants have many superpowers, such as manufacturing compounds to help repel pests, protecting themselves from environmental hazards, and providing a plethora of essential oils and other compounds that can heal a multitude of infections and other diseases.
Plants can do many amazing things. Among their talents, they can manufacture compounds that help them repel pests, attract pollinators, cure infections and protect themselves from excess temperatures, drought and other hazards in the environment.
Two rare but potentially deadly blood-clotting diseases, namely thrombotic thrombocytopenic purpura, or TTP, and hemolytic uremic syndrome, or HUS, show similar pathologies -- a multitude of painful blockages in small blood vessels that cause varying degrees of organ injury throughout the body. However, the two disorders have distinct biological mechanisms.
A team of researchers has found that a dangerous type of parasite that affects the brain, maintains a stable supply of essential nutrients as it replicates in the host cell. In an unexpected turn of events, the body itself delivers food to the harmful predator.
Brazilian and US researchers have developed a molecule called FRW that, in tests with mice, proved capable of binding to blood vessels in the brain but not in other organs when injected into the bloodstream.
Before being tested in animals or humans, most cancer drugs are evaluated in tumor cells grown in a lab dish.
St. Jude Children's Research Hospital scientists have cracked the mystery surrounding the most common genetic cause of amyotrophic lateral sclerosis, or Lou Gehrig's disease.
A phase I clinical trial that set out to assess the safety of a new combination therapy for a type of aggressive brain tumour has found the treatment to be well tolerated in patients.
Rejection of any kind is always hard to deal with, but when one's body rejects a precious organ transplant, the consequences can be devastating. Professor A. Vathsala, Co-director of the National University Centre for Organ Transplantation at the National University Hospital and Professor of Medicine, shared that between 30% to 40% of kidney transplants are lost over time to rejection.
Genes contain all the information needed for the functioning of cells, tissues, and organs in our body. Gene expression, meaning when and how are the genes being read and executed, is thoroughly regulated like an assembly line with several things happening one after another.
High levels of low-density lipoproteins, parcels of lipids and protein that carry cholesterol, are a leading risk factor for heart disease. Many cholesterol medications lower LDL, some of them by targeting the protein PCSK9. In the January issue of the Journal of Lipid Research, scientists at the University of California, San Francisco, report on an investigation into why experiments on PCSK9 give different results in a test tube and in liver cells.
An enzyme known to help our liver get rid of ammonia also appears to be good at protecting our retina, scientists report.
In a study published in iScience, Professor Akiyoshi Fukamizu of the Life Science Center for Survival Dynamics, Tsukuba Advanced Research Alliance (University of Tsukuba, JAPAN) and the research group reported a new work on discovery of the important role of PRMT1 in dilated cardiomyopathy.
Researchers from the University of Zurich can, for the first time, precisely characterize the protein modification ADP-ribosylation for all proteins in a tissue sample.
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