Magnetoencephalography reveals adaptive neural reorganization maintaining lexical-semantic proficiency in healthy aging

Although semantic cognition remains behaviorally stable with age, neuroimaging studies report age-related alterations in response to semantic context. We aimed to reconcile these inconsistent findings

Excitatory nicotinic signaling drives action potential bursting in dopaminergic axons

Axons of dopamine (DA) neurons express nicotinic receptors (nAChRs) that have been shown to both facilitate and suppress striatal DA release, but the mechanisms underlying

Why motor learning involves multiple systems: an algorithmic perspective

The initial stage of learning motor skills involves exploring vast action spaces, making it impractical to learn the value of every possible action independently. This

Dual cholinergic mechanisms for sculpting striatal dopamine in vivo

Striatal dopamine (DA) and acetylcholine constitute a computationally powerful neuromodulatory dyad that orchestrates action selection, motivational vigor, and reward learning. Striatal cholinergic interneurons (CINs) synapse

Real-Time Segmentation and Classification of Birdsong Syllables for Learning Experiments

Songbirds are essential animal models for studying neuronal and behavioral mechanisms of learned vocalizations. Bengalese finch (Lonchura striata domestica) songs contain a limited number of

Bacterial Profile and Antimicrobial Susceptibility Patterns of Asymptomatic Urinary Tract Infection Among Pregnant Women Attending Ante-natal Care at Kairuki Hospital, Dar es-Salaam ,Tanzania

December 20, 2025

Introduction Urinary tract infections are common to pregnant and nonpregnant women estimated to 150 million new cases annually. The incidence increases with pregnancy due changes that take place. Causative microbes are E.coli, Klebsiella pneumoniae and Staphylococci species. The disease presents symptomatically or asymptomatically, early investigation, detection and treatment to pregnant mothers are crucial to avoid maternal and foetal complications. Several effective antimicrobials are contraindicated using ineffective agents jeopardizes treatment outcomes leading to multidrug resistance. We assessed UTI causative microbes and susceptibility patterns to common antibiotics. Methods We conducted a hospital based cross sectional study at Kairuki hospital involving 262 pregnant mothers attending ante-natal clinics. Mid-stream urine was collected and inoculated on Cysteine- lactose-electrolyte-deficient agar, MacConkey and blood agar. Eleven microbes were isolated and tested for susceptibility against antibiotics using Kirby-Bauer disk diffusion technique on Mueller-Hinton agar. Data analysed using SPSS package version 23. Results The prevalence of UTI in pregnant mothers was 31.2% (82/262). The gram positive isolates were more prevalent than gram negative (59.3% versus 40.7%) Staphylococcus aureus 22/82 (26.2%) and S. saprophyticus 15/82 (17.9%) were the mostly isolated . Nitrofurantoin, Piperacillin/tazobactam have lowest resistant rate to both gram negative and gram positive isolates ranging from (0-26%) while Erythromycin and Ampicillin have the highest resistant rate ranging from (60-100%) therefore associated with multidrug resistant. Conclusion Asymptomatic UTI is prevalent to pregnant women at this hospital. We recommend culture and sensitivity results to guide treatment and usage of nitrofurantoin, piperacillin/tazobactam as first line treatment of UTI in pregnancy.

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