The glutamatergic system in Alzheimer's disease: a systematic review with meta-analysis.

Glutamatergic neurotransmission system dysregulation may play an important role in the pathophysiology of Alzheimer's disease (AD). However, reported results on glutamatergic components across brain regions are contradictory. Here, we conducted a systematic review with meta-analysis to examine whether there are consistent glutamatergic abnormalities in the human AD brain.

Single-dose antibiotic therapy for urinary infections during pregnancy: A systematic review and meta-analysis of randomized clinical trials.

Background: During pregnancy, urinary infections are an important cause of maternofetal morbidity and mortality and may lead to several complications.

Objective: To verify whether the use of antibiotic therapy in a single dose when compared with multiple doses in lower tract urinary infections during pregnancy is effective to obtain microbiologic cure.

Search Strategy: Online databases were searched.

Astrocyte Biomarkers in Alzheimer Disease: A Systematic Review and Meta-analysis.

Objective: To perform a systematic review and meta-analysis to determine whether fluid and imaging astrocyte biomarkers are altered in Alzheimer disease (AD).

Methods: PubMed and Web of Science databases were searched for articles reporting fluid or imaging astrocyte biomarkers in AD. Pooled effect sizes were determined with standardized mean differences (SMDs) using the Hedge G method with random effects to determine biomarker performance.