S
Sridhar Gopishetty
Researcher at University of Iowa
Publications - 14
Citations - 741
Sridhar Gopishetty is an academic researcher from University of Iowa. The author has contributed to research in topics: Caffeine & Theobromine. The author has an hindex of 9, co-authored 14 publications receiving 639 citations. Previous affiliations of Sridhar Gopishetty include University of Pennsylvania.
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Human Cytosolic 3α-Hydroxysteroid Dehydrogenases of the Aldo-keto Reductase Superfamily Display Significant 3β-Hydroxysteroid Dehydrogenase Activity IMPLICATIONS FOR STEROID HORMONE METABOLISM AND ACTION
TL;DR: The source of NADPH-dependent cytosolic 3β-hydroxysteroid dehydrogenase (3β-HSD) activity is unknown to date as mentioned in this paper, but it has been shown that AKR1C catalyzes the reduction of DHT into both 3α- and 3βDiol (established by 1H NMR spectroscopy).
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Development of nonsteroidal anti-inflammatory drug analogs and steroid carboxylates selective for human aldo-keto reductase isoforms: potential antineoplastic agents that work independently of cyclooxygenase isozymes.
David R. Bauman,Stephen I. Rudnick,Lawrence M. Szewczuk,Yi Jin,Sridhar Gopishetty,Trevor M. Penning +5 more
TL;DR: Crystallographic and molecular modeling studies showed that the carboxylic acid of the inhibitor ligand was tethered by the catalytic Tyr55-OH2+ and explained why A-ring substituted N-phenylanthranilates inhibited only AKR1C enzymes, and these compounds can be used to dissect the role of the AKR 1C isozymes in neoplastic diseases and may have cancer chemopreventive roles independent of COX inhibition.
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Two Distinct Pathways for Metabolism of Theophylline and Caffeine Are Coexpressed in Pseudomonas putida CBB5
TL;DR: To the authors' knowledge, this is the first report of theophylline N demethylation and coexpression of distinct pathways for caffeine and theophyLLine degradation in bacteria.
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Formation of 8-oxo-7,8-dihydro-2'-deoxyguanosine (8-oxo-dGuo) by PAH o-quinones: involvement of reactive oxygen species and copper(II)/copper(I) redox cycling.
Jong-Heum Park,Sridhar Gopishetty,Lawrence M. Szewczuk,Andrea B. Troxel,Ronald G. Harvey,Trevor M. Penning +5 more
TL;DR: Spectrophotometric assays showed that NADPH caused PAH o-quinones to enter futile redox cycles, which result in the depletion of excess cofactor, and that the immediate oxidant was not hydroxyl radical or Cu(I)OOH and that it is more likely (1)O(2), which can produce a 4,8-endoperoxide-dGuo intermediate.
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Genetic characterization of caffeine degradation by bacteria and its potential applications.
TL;DR: Various biotechnological applications of these genes responsible for bacterial caffeine degradation, including bio‐decaffeination, remediation of caffeine‐contaminated environments, production of chemical and fuels and development of diagnostic tests have also been demonstrated.