Citrulline is a non-essential amino acid. In hepatocytes, L-citrulline is synthesized in the urea cycle by the addition of carbon dioxide and ammonia to ornithine. L-citrulline is converted into L-arginine by the enzymes argininosuccinate synthetase and argininosuccinate lyase in the presence of L-aspartate and ATP. Subsequently, L-arginine is converted to nitric oxide by nitric oxide synthase and L-citrulline is regenerated as a by-product.
The triggers and causes of a severe scarring disease of the lungs -- idiopathic pulmonary fibrosis, or IPF -- remain unclear.
A new study claims that severe COVID-19 is caused by a positive feedback loop triggered by systemic inflammation and mediated by abnormal gut permeability. This finding could potentially help open up new avenues of treatment.
Researchers have shown that severe inflammation and joint damage in rheumatoid arthritis (RA) is primarily caused by a combination of different antibodies.
To diagnose rheumatoid arthritis, antibodies to the amino acid citrulline are commonly measured. A new study from Uppsala University shows that a broad mix of different antibodies in the joints is the dominant factor that can be associated with severe inflammation and joint damage.
Treating inflammatory diseases of the bowel is extremely challenging: Genes, gut microbes and disrupted immune function all contribute.
People suffering from major depressive disorder, MDD, have reduced arginine levels, a new study from the University of Eastern Finland shows. Arginine is an amino acid which the body uses to produce, e.g., nitric oxide.
An article published in Experimental Biology and Medicine (Volume 242, Issue 14, August 2017) reports that a plant virus-based system can be used to deliver anti-cancer drugs.
Early warning signs of Huntington's disease have been uncovered in a sheep carrying the human HD mutation, leading the way for new insight into this devastating illness, a new study in Scientific Reports has found.
Scientists on the Florida campus of The Scripps Research Institute have developed a new tool for studying the molecular details of protein structure.
University of Alabama researchers soon will launch a study that looks at watermelon juice as a way to reduce heart disease.
The most frequently prescribed oral antidiabetic drug metformin significantly affects metabolic pathways.
Medunik Canada, a Canadian pharmaceutical company specialized in rare diseases, is pleased to announce that PHEBURANE (a tasteless oral formulation of sodium phenylbutyrate), is now available for distribution in Canada. PHEBURANE is the first drug to be approved in Canada for the chronic management of urea cycle disorders (UCD) after receiving market authorisation on January 27th, 2015.
Biovision, the annual forum on future-oriented research in life sciences, today announces the list of biotech and medtech companies and projects selected for the Investor Conference and Catalyzer sessions. Awards will be presented during the closing ceremony.
Scientists from the Florida campus of The Scripps Research Institute (TSRI) have been awarded a $2.3 million grant from the National Institute of General Medical Sciences of the National Institutes of Health to develop new technology to diagnose cancer, rheumatoid arthritis and colitis.
Be sure to pick up a watermelon - or two - at your neighborhood farmers' market. It could save your life.
Synthon Biopharmaceuticals today announced the results of a head-to-head comparative program of its antibody-drug conjugate (ADC) SYD985 with Roche's market leading anti-HER2 ADC, T-DM1 (Kadcyla).
Does gum disease indicate future joint problems? Although researchers and clinicians have long known about an association between two prevalent chronic inflammatory diseases - periodontal disease and rheumatoid arthritis - the microbiological mechanisms have remained unclear.
Watermelon juice's reputation among athletes is getting scientific support in a new study, which found that juice from the summer favorite fruit can relieve post-exercise muscle soreness. The report in ACS' Journal of Agricultural and Food Chemistry attributes watermelon's effects to the amino acid L-citrulline.
Scientists from academic institutions reported at the 2013 annual American Association for Cancer Research meeting, results from preclinical studies which showed that certain bladder cancers and mesotheliomas have metabolic changes and are more likely to respond to treatment with ADI-PEG 20 (pegylated arginine deiminase) if they are deficient in the enzyme, argininosuccinate synthetase.
Quest Diagnostics (NYSE: DGX), the world’s leading provider of diagnostic information services, announced the availability of two new blood tests for aiding the early diagnosis of arthritis (RA), an autoimmune disorder that can cause debilitating joint damage.