Results 61 to 70 of about 26,569 (299)

First insights into structure-function relationships of alkylglycerol monooxygenase

Pteridines, 2013
Alkylglycerol monooxygenase is a tetrahydrobiopterin-dependent enzyme that cleaves the O-alkyl-bond of alkylglycerols. It is an exceptionally unstable, hydrophobic membrane protein which has never been purified in active form.
Watschinger Katrin, Fuchs Julian E., Yarov-Yarovoy Vladimir, Keller Markus A., Golderer Georg, Hermetter Albin, Werner-Felmayer Gabriele, Hulo Nicolas, Werner Ernst R.   +8 more
doaj   +1 more source

Endothelial Cell Tetrahydrobiopterin Modulates Sensitivity to Ang (Angiotensin) II–Induced Vascular Remodeling, Blood Pressure, and Abdominal Aortic Aneurysm

HYPERTENSION, 2018
GTPCH (GTP cyclohydrolase 1, encoded by Gch1) is required for the synthesis of tetrahydrobiopterin; a critical regulator of endothelial NO synthase function.
S. Chuaiphichai, V. Rashbrook, Ashley B. Hale, L. Trelfa, Jyoti Patel, E. McNeill, C. Lygate, K. Channon, G. Douglas   +8 more
semanticscholar   +1 more source

Inherited metabolic epilepsies–established diseases, new approaches

Epilepsia Open, EarlyView.
Abstract Inherited metabolic epilepsies (IMEs) represent the inherited metabolic disorders (IMDs) in which epilepsy is a prevailing component, often determining other neurodevelopmental outcomes associated with the disorder. The different metabolic pathways affected by individual IMEs are the basis of their rarity and heterogeneity.
Itay Tokatly Latzer, Phillip L. Pearl
wiley   +1 more source

Increasing Tetrahydrobiopterin in Cardiomyocytes Adversely Affects Cardiac Redox State and Mitochondrial Function Independently of Changes in NO Production [PDF]

, 2016
Tetrahydrobiopterin (BH4) represents a potential strategy for the treatment of cardiac remodeling, fibrosis and/or diastolic dysfunction. The effects of oral treatment with BH4 (Sapropterin™ or Kuvan™) are however dose-limiting with high dose negating ...
Bennett, Brian, Ionova, Irina A., Pieper, Galen M., Sethumadhavan, Savitha, Vasquez-Vivar, Jeannette, Whitsett, Jennifer   +5 more
core   +1 more source

Compensatory Feto-Placental Upregulation of the Nitric Oxide System during Fetal Growth Restriction [PDF]

, 2012
Background: Fetal Growth Restriction is often associated with a feto-placental vascular dysfunction conceivably involving endothelial cells. Our study aimed to verify this pathogenic role for feto-placental endothelial cells and, coincidentally ...
Begliuomini, Silvia, Boldrini, Antonio, Casarosa, Elena, Coceani, Flavio, Fink, Bruno, Genazzani, Andrea R., Ghirri, Paolo, Pisaneschi, Silvia, Ripoli, Andrea, Sanchez, Angel Matias, Simoncini, Tommaso, Strigini, Francesca A. L.   +11 more
core   +3 more sources

Molecular genetics of tetrahydrobiopterin deficiency in Chinese patients

Journal of Pediatric Endocrinology & Metabolism (JPEM), 2018
Background The overall incidence of hyperphenylalaninemia (HPA) in China is 1:11,763, with tetrahydrobiopterin (BH4) deficiency accounting for 8.55% of patients with HPA in the mainland.
Nana Li, Ping Yu, Bin Rao, Ying Deng, Yixiong Guo, Yushan Huang, L. Ding, Jun Zhu, Huanming Yang, Jian Wang, Jian Guo, Fang Chen, Zhen Liu   +12 more
semanticscholar   +1 more source

Characterization of the Protective Effect of Tetrahydrobiopterin Against S-Nitroso-N -Acetyl-D ,L-Penicillamine Induced Endothelial Cell Injury

Pteridines, 1999
The purpose of this study was to characterize the protective effect of tetrahydrobiopterin (BH4), one of the cofactors of nitric oxide (NO) synthase, against NO-induced endothelial cell injury. The addition of S-nitroso-N-acetyl-D,L-penicillamine (SNAP),
Ishii Masakazu, Shimizu Shunichi, Momose Kazutaka, Kiuchi Yuji, Yamamoto Toshinori   +4 more
doaj   +1 more source

Trends in resource utilization for new‐onset psychosis hospitalizations at children's hospitals

Journal of Hospital Medicine, EarlyView.
Abstract Background Children with new‐onset psychosis often require hospitalization for medical evaluation. Objectives The goal of this study was to assess variations in the management of children with new‐onset psychosis and characterize trends in resource utilization.
Ankita Gupta, Matt Hall, Benjamin Masserano, Averi Wilson, Katherine Johnson, Clifford Chen, Lasya Challa, Harita Katragadda, Vineeta Mittal   +8 more
wiley   +1 more source

Modulation of interleukin 2 high affinity binding to human T cells by a pyrimidodiazepine insect metabolite [PDF]

, 1993
An insect metabolite containing the little known pyrimido[4,5-b][l,4]diazepine ring system has been found to act as an effective mimic of tetrahydrobiopterin in its ability to modulate the affinity of interleukin 2 (IL-2) for its receptors on human T ...
Borchert, Monika, Boyle, Peter H., Davis, Anthony P., Heaney, Frances M., Ziegler, Irmgard   +4 more
core   +1 more source

Insulin Stimulates Tetrahydrobiopterin Synthesis in Mouse Brain Microvascular Endothelial Cells

Pteridines, 1999
We examined the effects of insulin on tetrahydrobiopterin (BH4) synthesis in mouse brain microvascular endothelial cells (MBMECs). Treatment of MBMECs with insulin increased the intracellular BH4 content in a time- and concentration-dependent manner. The
Ishi Masakazu, Shimizu Shunichi, Nagai Tsutomu, Kiuchi Yuji, Yamamoto Toshinori   +4 more
doaj   +1 more source