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 new study discusses the origin of the furin cleavage site on the SARS-CoV-2 spike protein, which is responsible for the virus’s relatively high infectivity compared to relatives in the betacoronavirus subgenus.
Researchers from Skoltech and their colleagues have demonstrated that nanoengineered biodegradable microcapsules can guide the development of hippocampal neurons in an in vitro experiment.
Anaphylaxis is a systemic allergic reaction that can affect the skin, the gastrointestinal tract, the respiratory system and the cardiovascular system.
In cells, numerous important biochemical functions take place within spherical chambers made from proteins and RNA.
Now, in new research posted to the preprint server bioRxiv*, scientists use an experimental structure of the Spike RBD domain co-crystallized with part of the ACE2 receptor and several in silico methods to analyze the possible impacts of three amino acid replacements (Spike K417N, E484K, N501Y) concerning ACE2 binding.
Hernias are one of the most common soft tissue injuries. Hernias form when intra-abdominal content, such as a loop of the intestine, squeezes through weak, defective or injured areas of the abdominal wall.
Images of a protein involved in creating a potent antibiotic reveal the unusual first steps of the antibiotic's synthesis.
Scientists from Skoltech, the Institute of Bioorganic Chemistry of RAS, and the London Institute of Medical Sciences (LMS) have developed an enhanced version of SuperNova, a genetically encoded phototoxic synthesizer, that helps control intracellular processes by light exposure.
An international research team has confirmed the mechanism by which the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) causes coronavirus disease 2019 (COVID-19). Their article titled, “SARS-CoV-2 Orf6 hijacks Nup98 to block STAT nuclear import and antagonize interferon signaling,” is published in the journal Proceedings of the National Academy of Sciences.
Cesarean section delivery and vaginal delivery lead to different hormonal exposures that may affect a newborn's development, according to an article published in the Journal of Neuroendocrinology.
The structure of a 3’ stimulatory pseudoknot in the viral genome or by itself has been proposed recently. Researchers report the structure and mechanisms of mammalian ribosomes during translation of the -1 frameshifting of the SARS-CoV-2 viral genome in a new study published on the preprint server bioRxiv.
A new study from Lawson Health Research Institute, Western University and University of Alberta suggests that COVID-19 affects the human body's blood concentration levels of specific metabolites - small molecules broken down in the human body through the process of metabolism.
The COVID-19 pandemic is still actively spreading in many parts of the world, causing redoubled efforts to develop antivirals and vaccines against severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). A recent study explores the role of a second type of cell surface receptor, called neuropilin, in the virus's entry into the host cell and its subsequent replication.
Those with food allergies must avoid allergens in food. Health problems can be triggered by even the smallest traces for those affected.
A new study summarizes over 30 years of clinical experience in the treatment and management of glutaric acidemia type 1 (GA1), a rare and potentially devastating metabolic disorder caused by variants in the GCDH gene.
The emergence of the new severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) mutation D614G has raised many questions, including whether it will cause the virus to become resistant to the vaccines produced against earlier versions of the virus. A new study published in the journal npj Vaccines in October 2020 shows that this may be an unfounded fear.
A team of researchers found out that children with autistic spectrum disorder (ASD) have increased levels of the amino acid hydroxyproline.
Normal brain development requires a precise interplay between neuronal and non-neuronal (also called glial) cells.
Now, a study by researchers from the University of California has shown that the N protein forms biomolecular condensates with the viral RNA in both in vitro and in vivo studies. The research titled, ‘SARS CoV-2 nucleocapsid protein forms condensates with viral genomic RNA’, was published on the preprint server bioRxiv on September 14th, 2020.
An investigational drug that targets an instigator of the TDP-43 protein, a well-known hallmark of amyotrophic lateral sclerosis (ALS) and frontotemporal dementia (FTD), may reduce the protein's buildup and neurological decline associated with these disorders, suggests a pre-clinical study from researchers at Penn Medicine and Mayo Clinic.