Biochem Biophys Res Commun
November 2024
The F-type ATP synthase/ATPase (FF) is important for cellular bioenergetics in eukaryotes and bacteria. We recently showed that venturicidins, a class of macrolides that inhibit the proton transporting complex (F), can also induce time-dependent functional decoupling of F-ATPase from F on membranes from Escherichia coli and Pseudomonas aeruginosa. This dysregulated ATPase activity could deplete bacterial ATP levels and contribute to venturicidin's capacity to enhance the bactericidal action of aminoglycosides antibiotics.
View Article and Find Full Text PDFIntroduction: Nonalcoholic Fatty Liver Disease (NAFLD) has become the leading cause of liver morbidity. The Mediterranean diet can improve NAFLD and may be offered as treatment. Intermittent fasting has been shown to improve aspects of the metabolic syndrome, but its effect on NAFLD is inconclusive.
View Article and Find Full Text PDFBackground: SARS-CoV-2 vaccine responses that could harbor potential risks to chronic liver diseased patients.
Aims: To assess immune response following Pfizer's SARS-CoV-2 vaccine in patients with different liver fibrosis severities of nonalcoholic fatty liver disease (NAFLD).
Methods: Clinical and histological (NAS-score and fibrosis stage) characteristics of NAFLD patients before vaccine were correlated with serologic vaccine responses of two doses of the BNT162b2.
Front Med (Lausanne)
September 2023
Introduction: Frailty is a known risk factor for many diseases, including COVID-19. However, many frail patients are undiagnosed as the diagnosis can be cumbersome. Alanine transaminase (ALT) is found not only in the liver but also in the muscle tissue, and multiple studies show that frail sarcopenic patients have lower ALT.
View Article and Find Full Text PDFObjectives: To assess the status at 13 to 17 years follow-up of a cohort of young male traumatic shoulder dislocators.
Study Design: Prospective cohort study.
Methods: A prospective study of first-time young male traumatic shoulder dislocators, began in 2004.
Background And Aims: We retrospectively assessed the clinical Pfizer's mRNA SARS-CoV-2 BNT162b2 vaccination outcomes and the serologic impact on liver transplant (LT) recipients.
Patients And Methods: One hundred and sixty-seven LT cases followed between March 1, 2020 and September 25, 2021, and were stratified into two groups: (1) 37 LT recipients after SARS-CoV-2 infection before vaccine era and (2) 130 LT recipients vaccinated with 2 doses without earlier SARS-CoV-2 exposure. Serum SARS-CoV-2 spike immunoglobulins (anti-S) were assessed 7 days following vaccination (Liaison assay).
Background: Crohn's disease (CD) and ulcerative colitis (UC) are chronic, immune-mediated inflammatory bowel diseases (IBD) affecting millions of people worldwide. IBD therapies, designed for continuous immune suppression, often render patients more susceptible to infections. The effect of the immune suppression on the risk of coronavirus disease-19 (COVID-19) is not fully determined yet.
View Article and Find Full Text PDFIntroduction: MRI is commonly used to evaluate medial tibial stress syndrome (MTSS), based on grading assessments developed in civilian populations. When MTSS represents stress fracture, rest is required to allow for bone remodelling to occur. False positive evaluations can lead to unnecessary recruit attrition.
View Article and Find Full Text PDFThere is a known variance in the incidence and anatomical site of tibial stress fractures among infantry recruits and athletes who train according to established uniform training programs. To better understand the biomechanical basis for this variance, we conducted axial strain measurements using instrumented bone staples affixed in the medial cortex, aligned along the long axis of the tibia at the level of the mid and distal third of the bone in four male subjects. Strain measurements were made during treadmill walking, treadmill running, drop jumps from a 45 cm height onto a force plate and serial vertical jumps on a force plate.
View Article and Find Full Text PDFThe Pfizer-BioNTech coronavirus disease 2019 (COVID-19) vaccine has been offered to nonallergic ≥16-year-old Israeli adults since December 19, 2020. Data regarding factors associated with vaccine ineffectiveness are limited. The aim of this study is to assess the impact of hepatic fibrosis on the efficacy of the BioNTech vaccine.
View Article and Find Full Text PDFBackground: Namodenoson, an A3 adenosine receptor (A3AR) agonist, improved liver function/pathology in non-alcoholic steatohepatitis (NASH) preclinical models.
Aim: To evaluate the efficacy and safety of namodenoson for the treatment of non-alcoholic fatty liver disease (NAFLD) with or without NASH METHODS: This phase 2 study included 60 patients with NAFLD (ALT ≥60 IU/L) who were randomised (1:1:1) to oral namodenoson 12.5 mg b.
T cells of aged people, and of patients with either cancer or severe infections (including COVID-19), are often exhausted, senescent and dysfunctional, leading to increased susceptibilities, complications and mortality. Neurotransmitters and Neuropeptides bind their receptors in T cells, and induce multiple beneficial T cell functions. Yet, T cells of different people vary in the expression levels of Neurotransmitter and Neuropeptide receptors, and in the magnitude of the corresponding effects.
View Article and Find Full Text PDFBacterial energy metabolism is now recognized as a critical factor for the efficacy of antibiotics. The F-type ATPase/ATP synthase (FF) is a central player in cellular bioenergetics of bacteria and eukaryotes, and its potential as a selective antibiotic target has been confirmed by the success of bedaquiline in combatting multidrug-resistant tuberculosis. Venturicidin macrolides were initially identified for their antifungal properties and were found to specifically inhibit FF of eukaryotes and bacteria.
View Article and Find Full Text PDFJ Community Hosp Intern Med Perspect
August 2020
Background: Treating COVID-19 patients can affect anxiety.
Objective: To compare the anxiety of internal medicine residents treating COVID-19 patients at a level-3 hospital with a level-2 hospital.
Methods: A questionnaire related to COVID-19 and anxiety using the State-Trait Anxiety Inventory (STAI-S) was sent to internal medicine residents of a COVID-19 referral level-3 hospital and a level-2 hospital from which all diagnosed COVID-19 cases are transferred to the COVID-19 referral hospital.
ATP synthases are important energy-coupling, rotary motor enzymes in all kingdoms of life. In all F-type ATP synthases, the central rotor of the catalytic F complex is composed of the γ subunit and the N-terminal domain (NTD) of the ε subunit. In the enzymes of diverse bacteria, the C-terminal domain of ε (εCTD) can undergo a dramatic conformational change to trap the enzyme in a transiently inactive state.
View Article and Find Full Text PDFClin Microbiol Infect
May 2020
Objectives: The 2018 measles outbreak in Israel affected >2000 people in Jerusalem. The aim of the study was to describe clinical features and complications of hospitalized measles patients in Jerusalem, as related to age group and risk factors.
Methods: All individuals hospitalized with measles in the three main hospitals in Jerusalem during March 2018 to February 2019 were included.
Background And Aims: Sense of coherence (SOC) is a theoretical concept reflecting a person's resources and orientation, which enable individuals to cope with stressors in a health-promoting manner. In several multifactorial chronic diseases, such as diabetes mellitus and systemic lupus erythematosus, SOC was correlated with disease development. It was also related with the emotional distress in patients with inflammatory bowel disease (IBD).
View Article and Find Full Text PDFIntroduction: Since individuals with IBD typically experience symptoms during their prime years of employment, it raises the question about IBD impact on employment status. Most studies concentrated on absenteeism from work with varying results in different populations. However, absenteeism reflects only one dimension of the ability to work and does not expose the problem of inability to hold a full-time job.
View Article and Find Full Text PDFBackground: Inflammatory bowel diseases (IBDs) are commonly diagnosed during the reproductive years. IBD first manifested during pregnancy (pregnancy-onset IBD [POIBD]) is still an undescribed entity. The aim of the study was to evaluate the characteristics and maternal and neonatal outcomes of patients with POIBD.
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