Evaluation of the new modified apnea test in confirmation of brain death.

Background: Apnea testing is mandatory to confirm brain death; however, it is unsafe for patients who have substantial hypoxemia without ventilator support. We used a new modified apnea test without the need to disconnect the patient from the ventilator in the present study and compared the outcomes and complications of the new method to the widely used old method.

Materials And Methods: The current study was conducted on people suspected of having brain death.

The frequency of osteomyelitis after pressure injury in spinal cord injury: a systematic review and meta-analysis.

Study Design: A systematic review and meta-analysis OBJECTIVE: To determine the global frequency of osteomyelitis in individuals with spinal cord injury who have pressure injuries (SCI-PI).

Methods: A comprehensive search on PubMed, EMBASE, Scopus, and the Web of Science has been conducted until November 2023. The Cochrane Handbook for Systematic Reviews was followed.

Narratives of resilience: Understanding Iranian breast cancer survivors through health belief model and stress-coping theory for enhanced interventions.

Breast cancer poses a significant global health challenge, with Iran experiencing particularly high incidence and mortality rates. Understanding the adaptation process of Iranian breast cancer survivors' post-treatment is crucial. This study explores the health perceptions, barriers, and coping mechanisms of Iranian survivors by integrating Stress-Coping Theory (SCT) and the Health Belief Model (HBM).

The effect of dexamethasone and bupivacaine on postoperative pain and nausea and vomiting by preperitoneal nerve blocking in laparoscopic cholecystectomy: a randomized clinical trial.

Background: This study aims to examine the effects of preperitoneal administration of dexamethasone and bupivacaine surrounding laparoscopic trocars on postoperative pain (POP) and nausea and vomiting (PONV) in patients undergoing laparoscopic cholecystectomy (LC).

Method: In this randomized triple-blinded trial with a 1:1 randomization ratio, 104 patients with chronic cholecystitis were candidates for elective LC. A total of 40 mg (8 ml) of bupivacaine was mixed with 8 mg (2 ml) of dexamethasone or normal saline.

Verbal Weight-Related Abuse and Binge Eating Behavior: The Mediating Role of Attentional Bias to Threat Cues and Difficulties in Emotion Regulation.

Introduction: Previous studies investigated the impact of weight-related abuse (WRA) on eating pathology. However, the circumstances of such an effect are still unclear. Our study aimed to examine the relationship between verbal WRA and binge eating (BE) behavior via attentional bias (AB) to threat cues and difficulties in emotion regulation.

Associations between Biological Maturation, Chronological Age, Body Mass Index, Sex, and Motor Competence in Prepubertal Children: A Network Analysis.

Background: The development of motor competence (MC) during childhood is crucial for future physical activity and health outcomes, and it is affected by both biological and psychosocial factors. Most MC research has focused on children's age, with fewer studies examining separate associations between MC and biological maturation.

Methods: This cross-sectional study used network analysis to assess the nonlinear associations between biological maturation (the child's percentage of predicted mature stature to indicate somatic maturation), chronological age, sex, BMI, and MC (Test of Gross Motor Development, third edition) in 218 children (100 boys, 118 girls) aged 7-9 years.

Conductive, injectable, and self-healing collagen-hyaluronic acid hydrogels loaded with bacterial cellulose and gold nanoparticles for heart tissue engineering.

The increasing demand for advanced biomaterials in nerve tissue engineering presents numerous challenges due to the complexity of nerve tissues and the need for materials that can accurately replicate their intricate structure and function. In response, this study introduces a novel injectable hydrogel that is thermosensitive, self-healing, and conductive, offering promising potential for heart and nerve tissue engineering applications. The hydrogel is based on collagen and hyaluronic acid functionalized with 3-aminopropyl-triethoxysilane (APTES)-grafted oxidized bacterial cellulose and gold nanoparticles (~50 nm).

A comprehensive review on the development of chiral Cu, Ni, and Zn complexes as pharmaceutical agents over the past decades: Synthesis, molecular structure and biological activity.

Chirality is a fundamental and widespread geometric structural property in living organisms that most biomacromolecules including nucleic acids, proteins and enzymes, possess. Consequently, the development of chiral drugs capable of binding specific targets have gradually gained wide attention in recent decades due to their selective effects on a broad spectrum of biological events ranging from cell metabolism to cell fate. In this context, the synthesis of chiral compounds as promising therapeutic candidates has assumed a major role in drug discovery.

Base-Promoted One-Pot Strategy for Expeditious Assembly of Highly Functionalized Benzocoumarin Derivatives.

A versatile and atom-economic three-component reaction between 3-cyano-4-styrylcoumarins, 1,3-indandione, and aliphatic alcohols is described for synthesizing diversely multifunctionalized benzocoumarins. This strategy allows facile access to various benzocoumarins bearing an amine and a substituted benzoyl scaffold under simple heating conditions. Readily available precursors, operational simplicity, acceptable functional group tolerance, and excellent yields are some highlighted advantages of this transformation.

Antibacterial activity and structural properties of gelatin-based sol-gel synthesized Cu-doped ZnO nanoparticles; promising material for biomedical applications.

This study investigates the antibacterial activity and spectral characteristics of Cu-doped ZnO nanoparticles synthesized via the gelatin-based sol-gel method, focusing on their potential biomedical applications. Zn₁₋ₓCuₓO nanoparticles (x = 0.0, 0.

Unveiling the Effects of Interval Resistance Training and Chlorella Vulgaris Supplementation on Meteorin-like Protein and Oxidative Stress in Obese Men.

Background: Dysregulation of adipocyte function occurs in obesity. Meteorin-like protein (Metrnl) is a newly discovered modulator of inflammation, metabolism, and differentiation of human adipocytes. The dietary supplement Chlorella Vulgaris (CV) reduces hyperlipidemia, hyperglycemia, and oxidative stress in clinical trials.

Spectral Characteristics, In Silico Perspectives, Density Functional Theory (DFT), and Therapeutic Potential of Green-Extracted Phycocyanin from .

Phycocyanin (PC) is a naturally occurring green pigment in It was extracted by ultrasonic extraction using green technology, and its structure was studied using IR- and NMR-spectroscopy. Spectral data confirmed the PC structure. This study also involves an in silico assessment of the diverse applications of green pigment PC.

Social-emotional competence, social adequacy, and self-regulation among Iranian female high school students.

The research aimed to investigate the association between social-emotional competence and social adequacy with the self-regulation of female high school students in Tehran. The sample of the current study consisted of 250 female participants from the student community in different educational areas of Tehran, who were selected using the multi-stage cluster sampling method. The measurement tools were: The social-emotional competence scale, the social adequacy scale and the self-regulation questionnaire.

Childhood Trauma and Parental Burnout: The Mediating Role of Difficulties in Emotion Regulation and Reflective Functioning.

This study investigated the mediating role of difficulties in emotion regulation and reflective functioning in the association between childhood trauma and parental burnout. The participants included 402 mothers with children ranging in age from 1 to 6 years. Mothers completed the Parental Burnout Assessment (PBA) the parental reflective functioning questionnaire (PRFQ), the Difficulties in Emotion Regulation Scale (DERS), and the Childhood Trauma Questionnaire (CTQ).

The Effect of Brainwave Synchronization Using Binaural Beats on Improving Working Memory and Reducing the Severity of Symptoms in Women With Obsessive-compulsive Disorder.

Introduction: Binaural beats are one of the new methods of brainwave synchronization. However, there is little knowledge about its clinical applications. The positive effect of this method on executive functions, such as attention and working memory, in the γ band has been mainly confirmed in healthy individuals.

The association between self-knowledge from Islamic perspective and mental health among Iranian female students.

This study aimed to relate self-knowledge to mental health (from Islamic perspective), and compare it among the female students. Using the Morgan table, we selected 379 students from four universities, namely alzahra University, a single-sex university, the University of Tehran, Shahid Beheshti University, and Kharazmi University. The samples were selected randomly by applying a stratified sampling method.

Halloysite functionalized with dendritic moiety containing vitamin B1 hydrochloride as a bio-based catalyst for the synthesis of 5-hydroxymthylfurfural.

Using halloysite clay and vitamin B1 hydrochloride, a novel acidic halloysite-dendrimer catalytic composite has been developed for conversion of fructose to 5-hydroxymthylfurfural. To grow the dendritic moiety on halloysite, it was first functionalized and then reacted with melamine, epichlorohydrin and vitamin B1 hydrochloride respectively. Then, the resulting composite was treated with ZnCl to furnish Lewis acid sites.

Mediating role of alexithymia in relationship between cyberbullying and psychotic experiences in adolescents.

Background: Today, addressing issues related to the use of virtual space is of paramount importance due to its significant impact on mental well-being. This is especially crucial when the research community consists of teenagers who are cyber bullies or their victims who have higher vulnerability. The aim of the present study was to investigate the mediating role of alexithymia in the relationship between cyberbullying and psychotic experiences in adolescents.

Microscopic, Molecular and Antigen Detection and Isolation of in Iran.

Cryptosporidiosis is a parasitic disease caused by the protozoan in vertebrates. In livestock, especially ruminants, infants develop diarrheal syndromes. The infection is common worldwide , including Iran, where it is reported in several species.

ChatGPT and Medical Research: A Meta-Synthesis of Opportunities and Challenges.

Introduction: The utility of ChatGPT in research is ambiguous, serving as both a boon and bane and presenting challenges and opportunities. Accordingly, this study aimed to delineate the merits and demerits of ChatGPT within the realm of research.

Methods: A meta-synthesis methodology involving a seven-step process was adopted to pursue the research objectives.

Cardiomyopathy discovered during pregnancy: Insights from speckle tracking echocardiography in a cohort of pregnant patients.

Background: Heart failure (HF) is considered the leading cause of cardiac-related morbidity and mortality during pregnancy. Peripartum cardiomyopathy (PPCM) presents diagnostic challenges, often mirroring dilated cardiomyopathy (DCM). The aim of the study is to evaluate echocardiographic features, including global and segmental longitudinal strain values, in pregnant women with a history of newly diagnosed left ventricular systolic dysfunction (LVSD) in the third trimester of pregnancy.

8-Aminoquinoline derived two Schiff base platforms: Synthesis, characterization, DFT insights, corrosion inhibitor, molecular docking, and pH-dependent antibacterial study.

The current research divulges the synthesis of two new Schiff base (SB) ( / ) derived from 8-aminoquinoline (8-AMQ) in the presence of 2-hydroxy naphthaldehyde (NAPH) and ortho-vanillin (O-VAN) in CHOH solvent. They are structurally characterized by spectroscopic methods (IR/Raman/UV-vis/DRS/NMR) and SEM-EDX. SB compounds have a biologically active avenue of azomethine/imine group (H-C=N) that can donate N e's to M ions, showing coordinating flexibility.