The COVID-19 mRNA vaccines demonstrated the power of mRNA medicines. Despite advancements in sequence design, evidence regarding the preferential use of synonymous codons on cellular stress and innate immune responses is lacking. To this end, we developed a proprietary codon optimality matrix to re-engineer the coding sequences of three luciferase reporters.
View Article and Find Full Text PDFSeveral ion currents in the mammalian ventricular myocardium are substantially regulated by the sympathetic nervous system via β-adrenergic receptor activation, including the slow delayed rectifier K current and the L-type calcium current. This study investigated the downstream mechanisms of β-adrenergic receptor stimulation by isoproterenol (ISO) on the inward rectifier (I) and the rapid delayed rectifier (I) K currents using action potential voltage clamp (APVC) and conventional voltage clamp techniques in isolated canine left ventricular cardiomyocytes. I and I were dissected by 50 µM BaCl and 1 µM E-4031, respectively.
View Article and Find Full Text PDFBackground: There is an emerging concern regarding the indirect effect the Covid-19 pandemic has had on the care provided to patients. New resuscitation guidance including the donning of Personal Protective Equipment before commencing resuscitation efforts, the avoidance of bag-mask ventilation, limiting the number of responders and stopping resuscitation efforts earlier could have led to worse outcomes following in-hospital cardiac arrest (IHCA) when compared to the non-pandemic period. The primary objective was to understand the impact of the pandemic on patient outcomes following IHCA by comparing the pandemic and non-pandemic periods.
View Article and Find Full Text PDFRespirable metal oxide nanoparticles in welding fumes pose significant health risks upon inhalation, potentially leading to neurodegenerative diseases. While the exact mechanisms remain unclear, it is evident that metal oxide nanoparticles can disrupt cellular functions, including metabolism and inflammatory responses after crossing the blood-brain barrier (BBB). Our study investigates the impact of manual metal arc welding fumes on hormone receptor transcription in an in vivo mouse model.
View Article and Find Full Text PDFIn recent years, several changes have occurred in the management of chronic immunological conditions with the emerging use of targeted therapies. This two-phase cross-sectional study was conducted through structured in-person interviews in 2018-2019 and 2022. Additional data sources included ambulatory medical records and the itemized reimbursement reporting interface of the National Health Insurance Fund.
View Article and Find Full Text PDFThe sex of crocodilians is determined by the temperature to which the eggs, and hence the developing embryo are exposed during critical periods of development. Temperature-dependent sex determination is a process that occurs in all crocodilians and numerous other reptile taxa. The study of artificial incubation temperatures in different species of crocodiles and alligators has determined the specific temperature ranges that result in altered sex ratios.
View Article and Find Full Text PDFJ Craniomaxillofac Surg
October 2024
PCIF1 (hosphorylated TD-nteracting actor ) is the mRNA (2'-O-methyladenosine-N(6)-)-methyltransferase that catalyzes the formation of cap-adjacent N,2'-O-dimethyladenosine (m6Am) by methylating adenosines at the first transcribed position of capped mRNAs. While previous studies assumed that PCIF1 was nuclear, cell fractionation and immunofluorescence both show that a population of PCIF1 is localized to the cytoplasm. Further, PCIF1 redistributes to stress granules upon oxidative stress.
View Article and Find Full Text PDFArsenic has been identified as an environmental toxicant acting through various mechanisms, including the disruption of endocrine pathways. The present study assessed the ability of a single intraperitoneal injection of arsenic, to modify the mRNA expression levels of estrogen- and thyroid hormone receptors (ERα,β; TRα,β) and peroxisome proliferator-activated receptor gamma (PPARγ) in hypothalamic tissue homogenates of prepubertal mice in vivo. Mitochondrial respiration (MRR) was also measured, and the corresponding mitochondrial ultrastructure was analyzed.
View Article and Find Full Text PDFMesenchymal stem cells (MSCs) are an integral part of the tumor microenvironment (TME); however, their role is somewhat controversial: conflicting reports suggest that, depending on the stage of tumor development, MSCs can either support or suppress tumor growth and spread. Additionally, the influence of MSCs on drug resistance is also ambiguous. Previously, we showed that, despite MSCs proliferating significantly more slowly than cancer cells, there are chemotherapeutic drugs which proved to be similarly toxic to both cell types.
View Article and Find Full Text PDFThe comprehensive examination of bile acids is of paramount importance across various fields of health sciences, influencing physiology, microbiology, internal medicine, and pharmacology. While enzymatic reaction-based photometric methods remain fundamental for total BA measurements, there is a burgeoning demand for more sophisticated techniques such as liquid chromatography-tandem mass spectrometry (LC-MS/MS) for comprehensive BA profiling. This evolution reflects a need for nuanced diagnostic assessments in clinical practice.
View Article and Find Full Text PDFObesity and diabetes are a progressively more and more deleterious hallmark of modern, well fed societies. In order to study the potential impact of strategies designed to obviate the pathological consequences of detrimental lifestyles, a model for the development of Type 2 diabetes geared towards large population simulations would be useful. The present work introduces such a model, representing in simplified fashion the interplay between average glycemia, average insulinemia and functional beta-cell mass, and incorporating the effects of excess food intake or, conversely, of physical activity levels.
View Article and Find Full Text PDFIntroduction: Despite the growing adoption of transcatheter aortic valve replacement (TAVR), there remains a lack of clinical data evaluating procedural safety and discharge practices.
Aims: This study aims to investigate if there have been improvements in postoperative clinical outcomes following TAVR.
Methods: In this large-scale, retrospective cohort study, patients who underwent TAVR as an inpatient were identified from 2016 to 2020 using the National Readmissions Database.
Assessment of risks and benefits of study participation is standard practice preceding the initiation of human subjects research. Although tracking adverse events during research participation is routine, collecting information from participants about what they perceive as benefits is less common. We longitudinally tracked social risks and benefits of participation among a cohort of 241 men who have sex with men participating in a sexual health study to improve participants' experiences and enhance understanding of participant motivations to enroll and attend follow-up.
View Article and Find Full Text PDFAcquired hemophilia A is a rare condition with the capability of bringing about life-threatening bleeding in the perioperative period, posing a significant challenge for the caregiver anesthetist to identify the underlying cause. However, a quick diagnosis might be supported by viscoelastometry by raising the suspicion of severe and isolated deficiency of the intrinsic coagulation pathway, requiring a prompt consultation with a hematology center. Special laboratory tests of hemostasis are helpful in the differential diagnosis of the detected coagulation disorder.
View Article and Find Full Text PDFCatheter Cardiovasc Interv
January 2024
Backgrounds: Transcatheter edge-to-edge repair (TEER) devices are used for primary mitral regurgitation (MR) and secondary MR. Despite the growing use of TEER devices, there have not been many studies on operator experience or procedure volumes by state.
Aims: We aimed to investigate nationwide operator volume trends and geographic variation in access to TEER.
The procedure is practically an optimization method, during which it is assumed that the gamma dose values detected at different points above the area come from the background radiation and from a single source found in the area. Accordingly, the procedure searches within the area for a geographical coordinate for which the distance law for the spatial propagation of radiation will be true. In order to validate the procedure, we performed measurements in a test area in such a way that all parameters of the source, including its location, were well defined.
View Article and Find Full Text PDFPsychotherapeutic interventions diff er from other health care interventions in many ways, thus the indicators of evidence-based medicine should be used with modifications when necessary. Implementation of a unified evaluation and quality assurance framework would aid the psychotherapy scene in having their intervention methods acknowledged by other medical specialties as an equal healthcare intervention. Professional recommendations regarding the interventions and methods used in clinical care in the field of psychotherapy can be laid down in specific professional guidelines of the domestic healthcare regulatory practice.
View Article and Find Full Text PDFIntroduction: Many scientific societies have emphasized the importance of evaluating the clinical utility of reproductive carrier screening (RCS). This systematic review aims to assess the clinical utility of RCS and synthesize the outcomes in a meta-analysis.
Areas Covered: A total of eleven studies were included.
Global navigation satellite systems (GNSSs) and ultra-wideband (UWB) ranging are two central research topics in the field of positioning and navigation. In this study, a GNSS/UWB fusion method is investigated in GNSS-challenged environments or for the transition between outdoor and indoor environments. UWB augments the GNSS positioning solution in these environments.
View Article and Find Full Text PDFSurvival of in-hospital cardiac arrests is still as low as 15-35%. Healthcare workers should closely monitor patients' vital signs, notice any deterioration, and initiate the necessary actions to prevent cardiac arrest. The introduction of early warning sign protocols (including the monitoring of respiratory rate, oxygen saturation, pulse, blood pressure, consciousness, etc.
View Article and Find Full Text PDFCardiovascular mortality has declined significantly in recent years, however, sudden cardiac death remains the leading cause of death in a range of different mortality indicators, very often caused by cardiac arrhythmias. The electrophysiological causes of sudden cardiac death include ventricular tachycardia, ventricular fibrillation, asystole and pulseless electrical activity. In addition, other cardiac arrhythmias may also trigger sudden cardiac death, periarrest arrhytmias.
View Article and Find Full Text PDFBackground: Routine human papillomavirus (HPV) vaccination is recommended for young adults, yet many young gay, bisexual, and other men who have sex with men (YGBMSM) remain unvaccinated. We report the efficacy of Outsmart HPV, a web-based HPV vaccination intervention for YGBMSM.
Methods: From 2019 to 2021, we recruited YGBMSM in the United States who were ages 18-25 and unvaccinated against HPV (n = 1,227).
Cytoplasmic capping returns a cap to specific mRNAs, thus protecting uncapped RNAs from decay. Prior to the identification of cytoplasmic capping, uncapped mRNAs were thought to be degraded. Here, we test whether long noncoding RNAs (lncRNAs) are substrates of the cytoplasmic capping enzyme (cCE).
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