Results 31 to 40 of about 4,698 (199)
Poultry Science, 2014 Neopterin and biopterin belong to a group of unconjugated pterin derivates. These biomolecules are present in many animal species and perform several functions.
I. Bedáňová +5 more
semanticscholar +1 more source
Journal of Veterinary Internal Medicine, 2014 Background Endothelial dysfunction (ED) has been suggested to be associated with myxomatous mitral valve disease (MMVD) in dogs. Tetrahydrobiopterin (BH4) is an important cofactor for production of the endothelium‐derived vasodilator nitric oxide (NO ...
M. J. Reimann +6 more
semanticscholar +1 more source
Pteridines, 1995 The levels of neopterin, biopterin and the neopterin/biopterin ratio (NIB) were measured in urine samples taken from normal young and elderly control subjects, exceptionally healthy elderly control subjects classified according to the 'Senieur' protocol ...
Armstrong R.A. +3 more
doaj +1 more source
The urinary biopterin in autism spectrum disorder
Pteridines, 2021 The aim of the study was to determine whether biopterin is present in significantly lower quantities in urine samples of patients with autism spectrum disorder (ASD) compared to healthy individuals.
Waligóra Aleksandra +4 more
doaj +1 more source
Biopterin Metabolism and eNOS Expression during Hypoxic Pulmonary Hypertension in Mice
PLoS ONE, 2013 Tetrahydrobiopterin (BH4), which fosters the formation of and stabilizes endothelial NO synthase (eNOS) as an active dimer, tightly regulates eNOS coupling / uncoupling.
M. Dubois +12 more
semanticscholar +1 more source
Neopterin and Cytokines in Hereditary Dystonia and Parkinson's Disease
Pteridines, 1999 Both neopterin and biopterin concentrations in cerebrospinal fluid from patients with Parkinson's disease, in which the nigrostriatal dopamine neurons degenerate, were lower than those from age-matched older control subjects.
Nagatsu T. +3 more
doaj +1 more source
Biopterin in Parkinson's disease. [PDF]
Journal of Neurology, Neurosurgery & Psychiatry, 1987 Tetrahydrobiopterin is an essential co-factor in the natural synthesis of dopamine. Oral tetrahydrobiopterin was given in small doses to four patients with early Parkinson's disease but had no discernible effect.
A P, Moore +3 more
openaire +2 more sources
Biosynthetic Enzymes of Tetrahydrolimipterin from Green Sulfur Bacterium Chlorobium Limicola
Pteridines, 1998 Based on the structure of limipterin (Cha, Pfleiderer, and Yim, Helv, Chim. Acta, 78: 600-614. 1995 the biosynthetic pathway for the newly identified pterin glycoside was investigated. It was demonstrated that tetrahydrolimipterin (H4 -limipterin) can be
Kang Dongmin, Kim Sangjoon, Yim Jeongbin
doaj +1 more source
Revista do Instituto de Medicina Tropical de São Paulo, 2021 Currently, the Milwaukee protocol presents healing results in human beings affected by the rabies virus. However, there are many points to clarify on the action of drugs and the immune mechanism involved in the evolution of the disease.
Caio Vinicius Botelho Brito +9 more
doaj +1 more source
Solar radiation exposure of dihydrobiopterin and biopterin in aqueous solution
, 2014 Dihydrobiopterin (H2Bip) and biopterin (Bip) accumulate in the skin of patients suffering from vitiligo, whose lack of melanin causes a deficient protection against UV radiation.
⇑. AdrianaIpin˜a +5 more
semanticscholar +1 more source