Results 61 to 70 of about 355,555 (310)

Acute Hepatic Porphyrias: Review and Recent Progress. [PDF]

, 2019
The acute hepatic porphyrias (AHPs) are a group of four inherited diseases of heme biosynthesis that present with episodic, acute neurovisceral symptoms.
Andant, Anderson, Andersson, Badawy, Balwani, Bissell, Bissell, Bloomer, Bonkovsky, Bonkovsky, Bonkovsky, Bonkovsky, Bonkowsky, Bonkowsky, Bonkowsky, Bylesjo, Chen, D’Avola, Ferrer, Glueck, Handschin, Jeans, Lambrecht, Lane, Marsden, McGuire, Pallet, Sardh, Sardh, Shen, Singal, Stein, Stewart, Tchernitchko, Wahlin, Watson, Watson, Willandt, Wu, Yarra, Yasuda   +40 more
core   +1 more source

Vacuoles, E1 enzyme, X-linked, autoinflammatory, and somatic syndrome in the intensive care unit: a case report

Journal of Medical Case Reports, 2023
Background Vacuoles, E1 enzyme, X-linked, autoinflammatory, and somatic syndrome is a newly discovered inflammatory disease affecting male subjects, for which few data exist in the literature.
Félicie Belicard, Nicolas Belhomme, Simon Bouzy, Clémence Saillard, Fabienne Nedelec, Jean-Baptiste Mear, Samuel Ardois, Cedric Pastoret, Florian Reizine, Christophe Camus, Benoit Painvin   +10 more
doaj   +1 more source

Peroxidasin enables melanoma immune escape by inhibiting natural killer cell cytotoxicity

Molecular Oncology, EarlyView.
Peroxidasin (PXDN) is secreted by melanoma cells and binds the NK cell receptor NKG2D, thereby suppressing NK cell activation and cytotoxicity. PXDN depletion restores NKG2D signaling and enables effective NK cell–mediated melanoma killing. These findings identify PXDN as a previously unrecognized immune evasion factor and a potential target to improve
Hsu‐Min Sung, David Bickel, Lena C. M. Krause, Daria Ezeriņa, Christian Ickes, Julian Wojtachnia, Christine S. Gibhardt, Magdalena Shumanska, Khadija Wahni, Andrea Paluschkiwitz, Julia Malo Pueyo, Ekaterina Baranova, Wim Vranken, Hedwig Stanisz, Ioana Stejerean‐Todoran, Michael P. Schön, Joris Messens, Ivan Bogeski   +17 more
wiley   +1 more source

Oxidation of 7-dehydrocholesterol and desmosterol by human cytochrome P450 46A1[S]

Journal of Lipid Research, 2014
Cytochrome P450 (P450 or CYP) 46A1 is expressed in brain and has been characterized by its ability to oxidize cholesterol to 24S-hydroxycholesterol. In addition, the same enzyme is known to further oxidize 24S-hydroxycholesterol to the 24,25- and 24,27 ...
Sandeep Goyal, Yi Xiao, Ned A. Porter, Libin Xu, F. Peter Guengerich   +4 more
doaj   +1 more source

Enzymic formation of esters of methyl sterol precursors of cholesterol

Journal of Lipid Research, 1971
For investigation of the reactions of cholesterol biosynthesis, a number of workers use the 10,000 g supernatant fraction (or similar preparations) obtained from cell-free homogenates of rat liver. We have found that esters of methyl sterol biosynthetic intermediates are formed by this crude source of enzymes. Esters of C(30)-, C(29)-, C(28)-, and C(27)
D.R. BRADY, J.L. GAYLOR
openaire   +3 more sources

Melatonin, its precursors, and synthesizing enzyme activities in the human ovary [PDF]

Molecular Human Reproduction, 1999
The presence of melatonin (N-acetyl-5-methoxytryptamine) and its precursors, serotonin (5-hydroxytryptamine) and N-acetylserotonin, was demonstrated in extracts of human ovary using reverse-phase high-performance liquid chromatography coupled with fluorometric detection.
M T, Itoh, B, Ishizuka, Y, Kuribayashi, A, Amemiya, Y, Sumi   +4 more
openaire   +2 more sources

Metal-dependent enzyme symmetry guides the biosynthetic flux of terpene precursors

Nature Chemistry, 2023
AbstractTerpenoids account for more than 60% of all natural products, and their carbon skeletons originate from common isoprenoid units of different lengths such as geranyl pyrophosphate and farnesyl pyrophosphate. Here we characterize a metal-dependent, bifunctional isoprenyl diphosphate synthase from the leaf beetle Phaedon cochleariae by structural ...
Felix Ecker, Abith Vattekkatte, Wilhelm Boland, Michael Groll   +3 more
openaire   +3 more sources

Dammarenediol II enhances etoposide‐induced apoptosis by targeting O‐GlcNAc transferase and Akt/GSK3β/mTOR signaling in liver cancer

Molecular Oncology, EarlyView.
Etoposide induces DNA damage, activating p53‐dependent apoptosis via caspase‐3/7, which cleaves PARP1. Dammarenediol II enhances this apoptotic pathway by suppressing O‐GlcNAc transferase activity, further decreasing O‐GlcNAcylation. The reduction in O‐GlcNAc levels boosts p53‐driven apoptosis and influences the Akt/GSK3β/mTOR signaling pathway ...
Jaehoon Lee, Byung‐Cheol Han, Gi‐Bang Koo, Jihye Park, Mijin Kwon, Young Bin Park, Jae‐Mun Choi, Seung‐Ho Lee, Sangho Roh   +8 more
wiley   +1 more source

Biocatalytic Route to Chiral Precursors of β-Substituted-γ-Amino Acids [PDF]

, 2011
In this work, we utilized commercial lipases (from Thermomyces lanuginosa, Rhizopus delemar, and Mucor miehei) as biocatalysts for the efficient synthesis of precursors of β-substituted-γ-amino acids.
Martinez, Carlos A., Mukherjee, Herschel
core   +2 more sources

Subcellular localization and tissue distribution of sialic acid precursor-forming enzymes [PDF]

Biochemical Journal, 1983
The enzymes UDP-N-acetylglucosamine pyrophosphorylase, UDP-N-acetylglucosamine 2-epimerase, N-acetylmannosamine kinase, N-acetylglucosamine kinase and N-acetylglucosamine 2-epimerase, which are involved in the metabolism of N-acetylneuraminic acid, were studied in rat with regard to their subcellular localization and tissue distribution.
J, Van Rinsum, W, Van Dijk, G J, Hooghwinkel, W, Ferwerda   +3 more
openaire   +2 more sources