386,649 papers found

We examined the effects of past use of oral contraceptives on risks of cardiovascular diseases prospectively in the Nurses' Health Study cohort. The 119,061 participants were 30 to 55 years old and free of coronary disease or stroke in 1976. They provided information on biennial questionnaires and were followed for 8 y…

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: 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…

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…

BACKGROUND: The human dystrobrevin binding protein 1 (DTNBP1) gene has been linked to risk for schizophrenia. Recent studies indicate that several single nucleotide polymorphisms (SNPs) in the DTNBP1 gene may also influence general cognitive ability in both schizophrenic patients and healthy control subjects. We examin…

OBJECTIVE: The authors conducted a meta-analysis of relevant data from primary studies of the genetic epidemiology of major depression. METHOD: The authors searched MEDLINE and the reference lists of previous review articles to identify relevant primary studies. On the basis of a review of family, adoption, and twin s…

Meta-analyses of randomized evidence may include published, unpublished, and updated data in an ongoing estimation process that continuously accommodates more data. Synthesis may be performed either with group data or with meta-analysis of individual patient data (MIPD). Although MIPD with updated data is considered th…

Endoscopic hemostatic therapy for upper gastrointestinal bleeding is gaining widespread acceptance despite often conflicting results of randomized controlled trials. To examine the effect of endoscopic therapy in acute nonvariceal upper gastrointestinal hemorrhage, a meta-analysis was performed using a computerized sea…

Estimates of the risks associated with the use of radiologic contrast agents frequently are based on a subjective review of some of the numerous articles that have been published on the subject. We have chosen instead to synthesize the existing evidence in an objective, quantitative way by statistically combining the d…

A theoretical basis for similar recurrence rates among H2-receptor antagonists exists based on recent concepts of ulcer recurrence, ulcer healing and suppression of nocturnal gastric acidity. In order to compare H2-receptor antagonists in the maintenance therapy of duodenal ulcer, a meta-analysis was carried out using…

While the loss of a parent during childhood may put a person at risk for depression, many studies have failed to confirm the importance of this risk factor. Nevertheless, the relationship between the loss of a parent and depression is of clinical importance. This paper reviews studies of the loss of a parent as a risk…

Oral enteric vaccines are reviewed with particular reference to cholera and typhoid. Enterotoxigenic E. coli, Shigella and Rotavirus vaccines are also considered. Clinical trials of those potentially useful vaccines are surveyed.

Results of numerous independent studies suggest that families of a critically ill hospitalized member have similar needs that they can readily identify as very important. Empirical analysis of results compiled from many studies across patient populations, settings, geographic locations, and over time indicates that fam…

To clarify the role of radiation therapy in the treatment of carcinoma of the pancreas studies with radiotherapy alone, combined interventional or concurrent radio-chemotherapy are reviewed. It is shown that in the case of inoperable tumour radiotherapy alone is inadequate, but by the means of a combination of chemothe…

Pharmacologic choices afford physicians the opportunity to tailor drug therapy to the individual patient's profile, and we are bolstered by a broad understanding of controllable risk factors. Choice of regimen--whether or not it involves drugs--requires accurate diagnostic information. Success depends on both control o…