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On the Influence of Additives and Modifiers on the Chiral HPLC Separation of the Enantiomers of Nicotine.
Chirality
February 2025
Daicel Chiral Technologies, West Chester, Pennsylvania, USA.
The influence of additives and modifiers on the chiral HPLC separation of the nicotine enantiomers using UV/Vis detection is discussed. Selected alcohols as modifiers and selected amines as additives were found to have a significant effect on the resolution and retention times of nicotine enantiomers even to the point of eliminating component elution. Systematic variations in the concentration of ethanol, methanol, and isopropanol, as modifiers, along with variations in the concentration of diethylamine, triethylamine, tributylamine, ethylenediamine, isopropylamine, as additives, revealed that the average resolution (R) of the nicotine enantiomers ranged from 2.
View Article and Find Full Text PDFPractice Advisory for Postoperative Pain Management of Thoracic Surgical Patients: Executive Summary: A Report by Society of Cardiovascular Anesthesiologists.
J Cardiothorac Vasc Anesth
December 2024
Department of Anesthesiology, Missoula Anesthesiology and The International Heart Institute of Montana, Missoula, MT.
Patients after thoracic surgery experience significant pain that can disrupt normal respiratory mechanics, increase the risk of respiratory complications, and impair recovery. Poorly controlled postoperative pain can develop into persistent postoperative pain. In addition, using opioids for pain control in the thoracic surgical population makes them more susceptible to opioid-related side effects due to their pre-existing comorbidities.
View Article and Find Full Text PDFK2 channel positive modulation reduces alcohol drinking in female C57BL/6J mice.
Alcohol
January 2025
Department of Neuroscience, Charleston Alcohol Research Center, Medical University of South Carolina, 70 President Street, Drug Discovery Building, Charleston, SC 29425. Electronic address:
Although men have historically exhibited higher levels of alcohol use disorder (AUD) diagnosis, the gap between men and women has been diminishing quickly. Preclinical screening for pharmacological treatments for AUD has typically focused solely on males, ignoring the possibility that males and females may differ mechanistically for the same behavioral phenotype. To ensure the efficacy of treatment targets across the sexes, it is crucial to study the pharmacological effects of AUD treatments in males and females.
View Article and Find Full Text PDFConsensus recommendations for measuring the impact of contraception on the menstrual cycle in contraceptive clinical trials.
Contraception
January 2025
MSI Reproductive Choices, London, England, United Kingdom.
Objective: We sought to develop consensus recommendations for measurement and analysis of data on contraceptive-induced menstrual changes (CIMCs) in contraceptive clinical trials. We built upon previous standardization efforts over the last 50 years and prioritized input from a variety of global experts and current regulatory authority guidance on patient-reported outcomes.
Study Design: We completed a formal consensus-building process with an interdisciplinary group of 57 experts from 30 organizations and 14 countries in five global regions who work across academia, nonprofit research organizations, the pharmaceutical industry, and funding agencies.
Female agency and probable depression in the perinatal period and beyond: Longitudinal findings from rural Pakistan.
Soc Sci Med
January 2025
Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina, 135 Dauer Drive, Chapel Hill, NC, 27599, USA; Carolina Population Center, University of North Carolina, 123 W Franklin Street, Chapel Hill, NC, 27516, USA.
In Pakistan, a setting with high gender inequality, the relationship between female agency and mental health has not been studied longitudinally or beyond a defined life stage like pregnancy. Using data from the Bachpan cohort of mother-infant dyads in Pakistan, we investigated female agency and depression at two life stages: perinatal (third trimester to 6-months postpartum; n = 1154) and beyond (3- to 4-years postpartum). Modified Poisson models estimated adjusted prevalence ratios (PR) for probable depression (PHQ-9) associated with female agency (freedom of movement and participation in household decision-making) at the two life stages.
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