391,955 papers found

OBJECTIVE: To investigate the validity of the conclusion from Cochrane reviews and meta-analyses that treatment with calcium supplementation during pregnancy reduces the risk for pre-eclampsia by 55%, which has been influential in international guidelines and future research. DESIGN: Sensitivity analysis of data from…

BACKGROUND: Levosimendan is an inodilator developed for treatment of acute heart failure and other cardiac conditions where the use of an inodilator is considered appropriate. Levosimendan has been studied in different therapeutic settings including acutely decompensated chronic heart failure, advanced heart failure, r…

The plasma concentration versus antihypertensive effect relationship for the calcium antagonist felodipine was investigated in 67 patients with hypertension and 21 healthy subjects by use of the Emax model. No consistent effect of felodipine on blood pressure was observed in the healthy subjects. In patients with hyper…

This paper reports findings of a subset of 91 programs, which included drug use measures, from the data base previously reported in the author's meta-analysis of 143 adolescent drug prevention programs. Treatment components of strategies successful in decreasing drug use by adolescents are discussed with regard to both…

Meta-analysis on data from 16 (two volunteer and 14 endoscopic) studies ahs been performed to investigate the prevalence of Helicobacter pylori infection in the stomachs of individuals within the Peoples Republic of China. In this survey covering 2216 cases (89 volunteers and 2127 endoscopy patients), the incidence of…

Tissue factor pathway inhibitor (TFPI) impedes early stages of the blood coagulation response, and low TFPI plasma levels increase the risk of thrombosis. TFPI plasma levels are heritable, but specific genetic determinants are unclear. We conducted a comprehensive review of genetic risk factors for TFPI plasma levels a…

BACKGROUND: Hyperhomocysteinemia, an elevation of plasma homocysteine levels, has been implicated in multiple diseases, yet its causal role remains debated. This umbrella review systematically evaluated and graded the evidence from published systematic reviews and meta-analyses on associations between hyperhomocysteine…

BACKGROUND: Colorectal cancer survivors frequently experience persistent fatigue, psychological distress, and reduced health-related quality of life (HRQoL) after treatment. Exercise is increasingly recognized as an effective nonpharmacologic intervention, but the comparative efficacy of different modalities remains un…

OBJECTIVES: This study aimed to compare the impacts of different nutritional supplements and drugs on older adults with sarcopenia. DESIGN: Systematic review and network meta-analysis. SETTING AND PARTICIPANTS: Participants with sarcopenia receiving nutritional and pharmacological interventions targeting sarcopenia i…

BACKGROUND: Chronic low back pain (CLBP) is a prevalent musculoskeletal disorder. Electrotherapy modalities such as high-frequency transcutaneous electrical nerve stimulation (HF-TENS), low-frequency transcutaneous electrical nerve stimulation (LF-TENS), and interferential current (IFC) are commonly used, yet their com…

OBJECTIVE: Considering safety and effectiveness of oral antihypertensive agents when treating hypertensive disorders of pregnancy, no preference can be stated between the 3 agents currently available. Therefore, this systematic review and network meta-analysis aims to determine the effects of antenatal treatment with m…

INTRODUCTION: Preoperative anemia, affecting 10-30% of cardiac surgery patients, is a modifiable risk factor associated with increased transfusion needs and adverse outcomes. Current interventions (e.g., iron supplementation, erythropoietin (EPO), and autologous blood storage) lack consensus due to limited evidence and…

INTRODUCTION: Artificial intelligence (AI), particularly large-language models like Chat Generative Pre-Trained Transformer (ChatGPT), has demonstrated potential in streamlining research methodologies. Systematic reviews and meta-analyses, often considered the pinnacle of evidence-based medicine, are inherently time-in…

BACKGROUND: Approximately half of the world's population is infected with Helicobacter pylori (H.pylori), a bacterium shown to be linked with a series of gastrointestinal diseases. A growing number of systematic reviews (SRs) have been published comparing the effectiveness of different treatments for H.pylori infection…

Standard methods for meta-analysis of dose-response data in epidemiology assume a model with a single scalar parameter, such as log-linear relationships between exposure and outcome; such models are implicitly unbounded. In contrast, in pharmacology, multi-parameter models, such as the widely used Emodel, are used to d…

Sixty-five studies that evaluated the efficacy of multidisciplinary treatments for chronic back pain were included in a meta-analysis. Within- and between-group effect sizes revealed that multidisciplinary treatments for chronic pain are superior to no treatment, waiting list, as well as single-discipline treatments su…

This paper demonstrates that Wald's meta-analysis is an unadjusted combination of unadjusted estimates. There are many differences among the design and implementation of the original studies combined here. One consequence of these differences is that studies of spousal smoking and lung cancer mortality conducted in the…

Because published outcome studies are the only available source of data about the morbidity among surviving very low birthweight infants (VLBW, less than 1500 g) a search was carried out of 1136 references in the English language. A total of 111 outcome studies were found that reported morbidity data in cohorts of VLBW…

Corticosteroids are frequently advocated for use in prevention of postherpetic neuralgia (PHN), although their use is replete with controversy. The present study is a meta-analysis of the four well-controlled clinical studies conducted on this issue. The results indicated there is a statistically significant decrease i…

Therapeutic drug monitoring (TDM) is commonly employed to optimize the dosing of certain drugs, including digoxin, aminoglycosides, theophylline, and phenytoin. Studies were reviewed in order to (a) evaluate the effect of TDM on the occurrence of toxic drug reactions (TDRs) and (b) identify factors that may modify or i…