Ecology and evolution are considered distinct processes that interact on contemporary time scales in microbiomes. Here, to observe these processes in a natural system, we collected a two-decade, 471-metagenome time series from Lake Mendota (Wisconsin, USA). We assembled 2,855 species-representative genomes and found that genomic change was common and frequent.
View Article and Find Full Text PDFBackground: Although studies have compared on-treatment effectiveness of infliximab and vedolizumab in patients with ulcerative colitis (UC), there has been limited comparison of treatment sequencing and long-term patient-centred outcomes.
Aim: To compare infliximab-first and vedolizumab-first strategy in biologic-naïve patients with UC.
Methods: We conducted a retrospective cohort study in biologic-naïve patients with UC who were treated first with either infliximab or vedolizumab between 2015 and 2021 and followed over 30 months following initiation.
Background: Depression in pregnancy can increase vulnerability for psychiatric disorders in the offspring, likely via the transfer of heightened maternal cortisol and cytokines to the in-utero environment. However, the precise cellular and molecular mechanisms, are largely unclear. Animal studies can represent this complex pathophysiology at a systemic level but are expensive and ethically challenging.
View Article and Find Full Text PDFBackground: Instructors used generative artificial intelligence (AI) as a teaching tool in a third-year baccalaureate nursing leadership course to help students understand and critique a change management proposal.
Method: Instructors used generative AI to develop a sample section of a change proposal for students to critique in class followed by a class discussion.
Results: Using generative AI enabled instructors to quickly develop a sample section of a change proposal for students to critique.
Background: Understanding public opinions about emerging tobacco products is important to inform future interventions and regulatory decisions. Heated tobacco products (HTPs) are an emerging tobacco product category promoted by the tobacco industry as a "better alternative" to combustible cigarettes. Philip Morris International's IQOS is leading the global HTP market and recently has been subject to important policy events, including the US Food and Drug Administration's (FDA) modified-risk tobacco product (MRTP) authorization (July 2020) and the US import ban (November 2021).
View Article and Find Full Text PDFClin Gastroenterol Hepatol
October 2024
Some interventions for smoking cessation such as quit smoking aids show sex-specific effects on outcomes, but behavioral interventions such as mindfulness-based interventions (MBIs) for smoking cessation lack formal reporting of sex-intervention tests of interaction to date. To address this gap, we conducted a secondary analysis of a RCT dataset (N = 213), recruiting participants from California, to statistically test a sex-intervention interaction effect on complete 7-day point prevalence abstinence (PPA), proportion of days abstinent, and daily cigarettes smoked. Smoking was assessed using the timeline follow back method spanning the four weeks following a daily 14-day app-based intervention and a planned smoking quit date immediately following the intervention phase.
View Article and Find Full Text PDFBackground: Understanding the precise mechanisms of ketamine is crucial for replicating its rapid antidepressant effects without inducing psychomimetic changes. Here, we explore whether the antidepressant-like effects of ketamine enantiomers are underscored by protection against cytokine-induced reductions in hippocampal neurogenesis and activation of the neurotoxic kynurenine pathway in our well-established in vitro model of depression in a dish.
Methods: We used the fetal hippocampal progenitor cell line (HPC0A07/03C) to investigate ketamine's impact on cytokine-induced reductions in neurogenesis in vitro.
Sex-differential selection (SDS), which occurs when the fitness effects of alleles differ between males and females, can have profound impacts on the maintenance of genetic variation, disease risk, and other key aspects of natural populations. Because the sexes mix their autosomal genomes each generation, quantifying SDS is not possible using conventional population genetic approaches. Here, we introduce a method that exploits subtle sex differences in haplotype frequencies resulting from SDS acting in the current generation.
View Article and Find Full Text PDFBackground: The 2021 Surviving Sepsis Campaign Guidelines recommend the use of hydrocortisone in patients who remain hemodynamically unstable despite adequate fluid resuscitation and vasopressor therapy. Fludrocortisone has been used concomitantly with hydrocortisone in some studies without a clearly defined role or known clinical benefit. The purpose of this study was to assess the impact of fludrocortisone added to hydrocortisone on shock-free days for septic shock.
View Article and Find Full Text PDFIntranasal oxytocin (INOT) has received attention as a treatment for substance use disorders including tobacco dependence. However, it is unclear whether INOT-related effects differ by sex and social functioning traits. This study examined the influence of sex and two trait social functioning measures (hostility and rejection sensitivity) on INOT effects on abstinence-related subjective measures and smoking lapse.
View Article and Find Full Text PDFThe present study investigated the effects of social interaction with others who smoke on daily cigarette use among diverse females ecological momentary assessment methods. Ninety-eight premenopausal females (29.6% White, 70.
View Article and Find Full Text PDFPsychol Addict Behav
November 2024
Objective: Sexual and gender minority individuals are more likely to use tobacco and cannabis and have lower cigarette cessation. This study examined cannabis use associations with daily cigarettes smoked in sexual and gender minority individuals before and during a quit attempt.
Method: Participants included dual smoking same-sex/gender couples from California that were willing to make a quit attempt (individual = 205, 68.
This article reports on a study conducted to explore what helps and what complicates learning safe medication administration. In this study, nurse educators explored students' perspectives on effective teaching practices, what influences medication errors and near misses, and strategies for improving students' learning about medication administration. Students ranked nursing instructors, peers, and staff nurses as having the greatest positive impact on both their learning and patient safety.
View Article and Find Full Text PDFObjective: To investigate incorporating a ready-to-use 2.5:1 ratio liquid feed into a ketogenic diet (KD) in children and adults with drug-resistant epilepsy.
Methods: Following a three-day baseline, patients (n = 19; age: 19 years [SD 13], range: 8-46 years) followed a KD for 28 days (control period), then incorporated ≥200 mL/day of a ready-to-use liquid feed, made with a ratio of 2.
Introduction: JUUL is a high-nicotine pod-based vaping device that is popular among adolescents and young adults. On 23 June 2022, the US Food and Drug Administration (FDA) denied authorization to market JUUL, and ordered JUUL Labs to remove products from the US market. The next day, a US federal appeals court temporarily suspended the ban.
View Article and Find Full Text PDFEcology and evolution are often viewed as distinct processes, which interact on contemporary time scales in microbiomes. To observe these processes in a natural system, we collected a two-decade, 471-sample freshwater lake time series, creating the longest metagenome dataset to date. Among 2,855 species-representative genomes, diverse species and strains followed cyclical seasonal patterns, and one in five species experienced decadal shifts in strain composition.
View Article and Find Full Text PDFMarine phytoplankton play crucial roles in the Earth's ecological, chemical, and geological processes. They are responsible for about half of global primary production and drive the ocean biological carbon pump. Understanding how plankton species may adapt to the Earth's rapidly changing environments is evidently an urgent priority.
View Article and Find Full Text PDFThere remains a need to develop novel SARS-CoV-2 therapeutic options that improve upon existing therapies by an increased robustness of response, fewer safety liabilities, and global-ready accessibility. Functionally critical viral main protease (M, 3CL) of SARS-CoV-2 is an attractive target due to its homology within the coronaviral family, and lack thereof toward human proteases. In this disclosure, we outline the advent of a novel SARS-CoV-2 3CL inhibitor, , bearing an unprecedented trifluoromethoxymethyl ketone warhead.
View Article and Find Full Text PDFAim: To evaluate improvement in knowledge and clinical behaviour among healthcare professionals after attendance at paediatric epilepsy training (PET) courses.
Method: Since 2005, 1-day PET courses have taught evidence-based paediatric epilepsy management to doctors and nurses in low-, middle-, and high-income countries. A cohort study was performed of 7528 participants attending 252 1-day PET courses between 2005 and 2020 in 17 low-, middle-, and high-income countries, and which gathered data from participants immediately after the course and then 6 months later.
Background: Opioid withdrawal symptoms are a highly salient and consequential health condition experienced by people who use opioids (PWUO). This study utilized qualitative interviews to explore opioid withdrawal experiences and consequences among PWUO in Los Angeles County, USA.
Methods: Semi-structured qualitative interviews were conducted with 22 PWUO (aged 27-63 years) between May 2021 and May 2022.
Aim: This study was designed to explore experiences of high school athletes in order to understand their occupational engagement after sustaining a sports-related concussion. The study explored the role occupational therapists (OTs) can play in post-concussion care while supporting adolescents in returning to meaningful occupations.
Methods: The study utilized a qualitative, phenomenological approach by conducting interviews with high school athletes to understand their participation in occupations during recovery.
Purpose Of Review: In the United Sates the cost of managing Crohn's disease and ulcerative colitis, the two most common inflammatory bowel diseases, is a major factor that can alter the course of treatment. The increasing use of advanced therapies such as biologics and oral small molecules is a driver of these costs. Many IBD providers find navigating the payor and non-insurance cost assistance processes to be a significant challenge in care management.
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