Results 51 to 60 of about 173,508 (193)

Alkoxyallenes in Modern Synthesis: Reactivity, Catalysis, and Complexity Generation

open access: yesAdvanced Synthesis &Catalysis, Volume 368, Issue 17, 1 September 2026.
The last decade has witnessed a remarkable transformation in alkoxyallene chemistry. Although historically employed as synthetic equivalents of acrolein or as versatile 3C synthons, alkoxyallenes are now increasingly recognized as highly adaptable platforms for synthetic design.
A. Lanfranco   +5 more
wiley   +1 more source

Development of a Method of Analysis by Gas Chromatography-Mass Spectrometry using Selected Ion Monitoring for the Measurement of Fish Sex Steroids in Water [PDF]

open access: yes, 2009
A method for the analysis of testosterone, androstenedione, 5β-dihydrotestosterone, 11-ketotestosterone, estrone, 17β-estradiol, 17α-hydroxyprogesterone, 17α,20β-dihydroxy-4-pregnen-3-one, 5β-pregnane-3α,17α,20α-triol, 5β-androstane-3α,17β-diol, 5β ...
Boult, Cherie Helen
core  

Inhaled steroids and risk of pneumonia for chronic obstructive pulmonary disease. [PDF]

open access: yes, 2014
BACKGROUND: Inhaled corticosteroids (ICS) are anti-inflammatory drugs that have proven benefits for people with worsening symptoms of chronic obstructive pulmonary disease (COPD) and repeated exacerbations.
Seniukovich, A   +3 more
core   +1 more source

Phytochemical Profiling and Evaluation of Antibacterial, Anticancer, Anti‐inflammatory, and Wound‐Healing Activities of Endophytic Fungi Isolated From Atalantia racemosa

open access: yesChemistry &Biodiversity, Volume 23, Issue 9, September 2026.
ABSTRACT Endophytic fungi are recognized as prolific sources of structurally diverse secondary metabolites with significant pharmaceutical potential. In the present study, endophytic fungi were isolated from healthy tissues of Atalantia racemosa (Rutaceae), an ethnomedicinal plant traditionally used for respiratory disorders and blood purification.
Sushma M   +3 more
wiley   +1 more source

Plasma Exosome Metabolomics Reveal Stage‐Specific Alterations in Elderly Women With Premetabolic and Metabolic Syndrome

open access: yesChronic Diseases and Translational Medicine, Volume 12, Issue 3, Page 219-230, September 2026.
Shared differential metabolites identified across the three sample groups. (A) Venn diagram of differential metabolites between the two comparison groups; Based on the detected levels of these overlapping differential metabolites, (B) d‐Arabitol, (C) Triclosan, (D) Iloprost, (E) Tetracosanoic acid, and (F) Omeprazole sulfone. Box plots were constructed
Mengtao Qian   +4 more
wiley   +1 more source

Influences of β-HCG administration on carbon isotope ratios of endogenous urinary steroids.

open access: yes, 2012
Several factors influencing the carbon isotope ratios (CIR) of endogenous urinary steroids have been identified in recent years. One of these should be the metabolism of steroids inside the body involving numerous different enzymes.
Baume, N.   +4 more
core   +1 more source

IN SILICO DRUG-LIKENESS OF STEROIDAL HETEROCYCLIC DERIVATIVES

open access: yesProceedings
Steroidal bis-thiosemicarbazones and their cyclic derivatives, thiadiazolines (TDZs) and triazoline-3-thiones (TATs), were evaluated in silico (Molinspiration, pkCSM) to assess drug-likeness and pharmacokinetic properties. With the exception of cholestane-based derivatives, most compounds complied with Lipinski’s criteria or showed only a single ...
Marijana Živković   +2 more
openaire   +2 more sources

Dengue Virus Molecular Targets and Antiviral Drug Development: Advances, Challenges and Therapeutic Perspectives

open access: yesChemistrySelect, Volume 11, Issue 33, 1 September 2026.
This narrative review analyzes DENV molecular targets, including structural proteins (C, prM/M, E), non‐structural components (NS1NS5), and host factors, alongside small‐molecule candidates in preclinical and clinical phases. Owing to high structural conservation, the NS2B‐NS3 protease and NS5 (RdRp/MTase) remain primary drug discovery focuses, while ...
Aryane Lucia da Silva Aguiar De Oliveira   +8 more
wiley   +1 more source

H-1 NMR determination of adulteration of anabolic steroids in seized drugs

open access: yes, 2018
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Counterfeiting and adulteration of pharmaceuticals is a prevalent problem worldwide and represents a major health risk to the population, with anabolic steroids being one of the main ...
Pezza, Leonardo [UNESP]   +9 more
core   +1 more source

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