Gut Microbiota as Well as Metabolomes of Wistar Rats Recover within Two Weeks after Doripenem Antibiotic Treatment.

An understanding of the changes in gut microbiome composition and its associated metabolic functions is important to assess the potential implications thereof on host health. Thus, to elucidate the connection between the gut microbiome and the fecal and plasma metabolomes, two poorly bioavailable carbapenem antibiotics (doripenem and meropenem), were administered in a 28-day oral study to male and female Wistar rats. Additionally, the recovery of the gut microbiome and metabolomes in doripenem-exposed rats were studied one and two weeks after antibiotic treatment (i.

Auditory mismatch impairments are characterized by core neural dysfunctions in schizophrenia.

Major theories on the neural basis of schizophrenic core symptoms highlight aberrant salience network activity (insula and anterior cingulate cortex), prefrontal hypoactivation, sensory processing deficits as well as an impaired connectivity between temporal and prefrontal cortices. The mismatch negativity is a potential biomarker of schizophrenia and its reduction might be a consequence of each of these mechanisms. In contrast to the previous electroencephalographic studies, functional magnetic resonance imaging may disentangle the involved brain networks at high spatial resolution and determine contributions from localized brain responses and functional connectivity to the schizophrenic impairments.

VISION: a regional performance improvement initiative for HIV health care providers.

Introduction: VISION (HIV Integrated Learning ModuleS: Achieving Performance Improvement through CollaboratiON) was a regional performance improvement (PI) continuing medical education (CME) initiative designed to increase guideline-conforming practice of clinicians who manage patients with HIV infection.

Methods: The 3-part activity consisted of (1) clinical practice assessment and development of an action plan for practice change, (2) completion of relevant education, and (3) reassessment.

Results: The activity did not change practitioners' performance in clinical status monitoring and in patient treatment, in large part because guidelines were being appropriately implemented at baseline as well as after the educational intervention.

Impact of oral vitamin C on histamine levels and seasickness.

Background: Seasickness is a risk aboard a ship. Histamine is postulated as a causative agent, inversely related to the intake of vitamin C. Persons with mastocytosis experienced improvement of nausea after the intake of vitamin C.

Influence of anodal transcranial direct current stimulation (tDCS) over the right angular gyrus on brain activity during rest.

Although numerous studies examined resting-state networks (RSN) in the human brain, so far little is known about how activity within RSN might be modulated by non-invasive brain stimulation applied over parietal cortex. Investigating changes in RSN in response to parietal cortex stimulation might tell us more about how non-invasive techniques such as transcranial direct current stimulation (tDCS) modulate intrinsic brain activity, and further elaborate our understanding of how the resting brain responds to external stimulation. Here we examined how activity within the canonical RSN changed in response to anodal tDCS applied over the right angular gyrus (AG).

Effect of MAOA Genotype on Resting-State Networks in Healthy Participants.

Up to now, it remains unclear how monoamine oxidase A (MAOA), which has been repeatedly linked to aggression, affects brain activity within resting-state networks (RSN). Here, we used functional magnetic resonance imaging (fMRI) to test whether the MAOA genotype might influence activity within the common RSN. Our results demonstrate that during rest, participants with the low-activity genotype (MAOA-L) exhibit more activity within frontoparietal and temporal parts of the default mode network (DMN) and the cerebellum.

Changing HIV clinical knowledge and skill in context: the impact of longitudinal training in the Southeast United States.

In the Southeast United States, HIV care is provided in a context of disproportionate HIV prevalence and barriers to care, including rural locales, higher proportions of African American and uninsured patients, and inadequate health care workforce and infrastructure. The authors describe a regional on-site longitudinal training program developed to target multidisciplinary teams providing HIV primary care at clinical sites in the region. The effect of this training program was evaluated using pre- and 3-month post-program knowledge and skills tests, a post-training evaluation questionnaire, and a post-program focus group.

Monitoring of CBFV and time characteristics of oxygen-induced acute CNS toxicity in humans.

Background: Hyperbaric oxygen can cause central nervous system (CNS) toxicity with seizures. We tested the hypothesis that CNS toxicity could be predictable by cerebral blood flow velocity (CBFV) monitoring.

Method: We monitored 369 mandatory oxygen tolerance tests (30 min, 280 kPa O(2)) by video-documentation and since May 2005 by additional CBFV registration (n = 61).

Increasing myocardial contraction and blood pressure in C57BL/6 mice during early postnatal development.

Knowledge of the developmental changes of cardiovascular parameters in the genetic background of a mouse strain is important for understanding phenotypic changes in transgenic or knockout mouse models for heart disease. We studied arterial blood pressure and myocardial contractility in mice of the common background strain C57BL/6, aged 21 days [postnatal day 21 (P21)] to 580 days. Heart rate increased during maturation from 396 beats/min at P21 to 551 beats/min at postnatal day 50 (P50), and mean arterial blood pressure increased in parallel from 86 to 110 mmHg and remained constant afterward.