• MeSH
• fenmetrazin farmakologie   MeSH
• krysa rodu Rattus MeSH
• nervové vedení účinky léků   MeSH
• počítače MeSH
• zvířata MeSH
• Check Tag
• krysa rodu Rattus MeSH
• zvířata MeSH
• Publikační typ
• časopisecké články MeSH
• Názvy látek
• fenmetrazin MeSH

• MeSH
• kočky MeSH
• korová synchronizace MeSH
• operantní podmiňování fyziologie   MeSH
• posilování (psychologie) * MeSH
• týlní lalok fyziologie   MeSH
• zvířata MeSH
• Check Tag
• kočky MeSH
• zvířata MeSH
• Publikační typ
• časopisecké články MeSH

OBJECTIVE: The aim of our study was to describe and analyze HAI incidence, etiology and risk factors in pediatric intensive care unit (ICU). BACKGROUND: Intensive care patients are at high risk of hospital-acquired infections (HAI) due to their underlying diseases and exposure to invasive devices. METHODS: The study group consisted of patients admitted to children's hospital ICU for more than 2 days during a six-month period (267 patients, 1570 patient-days). We used the European Centre for Disease Prevention and Control standard protocol HAI-Net ICU v2.2 for data collection. RESULTS: HAI occurred in 17 (6.4%) included patients (10.8 infections per 1000 patient-days). The most frequent were catheter-related bloodstream infections (33%, 7.6 per 1000 catheter-days) and intubation-associated pneumonia (25%, 10.9 per 1000 intubation-days). Gram-negative bacteria (Pseudomonas aeruginosa, Klebsiella spp.) were identified as the most common etiological agents. Significantly higher risk of HAI had patients with central venous catheter (OR: 14.5, 95% CI 3.2-65.1), intubated (OR: 14.4, 95% CI 4.4-46.2), with Pediatric Index of Mortality score higher than 10 (OR: 17, 95% CI 2.7-111.5) and with previous bacterial or/ and fungal colonization (OR: 30.6, 95% CI 9.2-101.3). CONCLUSIONS: Active surveillance identified unreported HAI cases and proved to be an effective tool of infection control.

• Klíčová slova
• Active surveillance, hospital-acquired infections, pediatric intensive care unit,
• MeSH
• dítě MeSH
• incidence MeSH
• infekce spojené se zdravotní péčí * epidemiologie   mikrobiologie   MeSH
• jednotky intenzivní péče pediatrické * MeSH
• katétrové infekce epidemiologie   mikrobiologie   MeSH
• kojenec MeSH
• lidé MeSH
• mladiství MeSH
• novorozenec MeSH
• předškolní dítě MeSH
• rizikové faktory MeSH
• Check Tag
• dítě MeSH
• kojenec MeSH
• lidé MeSH
• mladiství MeSH
• mužské pohlaví MeSH
• novorozenec MeSH
• předškolní dítě MeSH
• ženské pohlaví MeSH
• Publikační typ
• časopisecké články MeSH

BACKGROUND: This study investigated the subthalamic nucleus (STN) function and deep brain stimulation (DBS) effects on single-unit activity (SUA) in Parkinson's disease (PD) patients with dysarthria. METHODS: After presurgical speech analysis, we recorded STN neuronal activities while PD patients (n = 16) articulated Chinese Pinyin consonants. The Pinyin consonants were categorized by the manner and place of articulation for SUA cluster analysis. The cohort was then divided into normal articulation and dysarthria groups based on diadochokinetic (DDK) assessments. The STN SUA patterns, represented by the mean firing rate (FR), peak time, and response intensity during articulation, were analyzed and compared between the two groups. Finally, a stimulation cohort of 7 PD patients was included to test articulation and SUA pattern changes following intraoperative DBS. RESULTS: Clustering analysis of STN neuronal firing patterns demonstrated that neurons encode articulation by grouping consonants with the same manner of articulation into distinct clusters. Using k-means clustering, we further classified SUAs into two waveform types: negative spikes (type 1) and positive spikes (type 2). Dysarthria patients exhibited an increased mean FR of type 1 spikes and a reduced response intensity of type 2 spikes. During intraoperative stimulation, PD patients showed accelerated DDK, accompanied by a decrease in type 1 mean FR and an increase in type 2 mean FR. CONCLUSION: Our findings indicate the crucial role of the STN in consonant encoding and dysarthria at the single-unit level. Both SUA firing patterns in the STN and DDK performance can be modulated by DBS.

• Klíčová slova
• Articulation, Dysarthria, Parkinson's disease, Single-unit activity, Subthalamic nucleus,
• MeSH
• akční potenciály fyziologie   MeSH
• dysartrie * patofyziologie   etiologie   terapie   MeSH
• hluboká mozková stimulace metody   MeSH
• lidé středního věku MeSH
• lidé MeSH
• neurony * fyziologie   MeSH
• nucleus subthalamicus * patofyziologie   MeSH
• Parkinsonova nemoc * komplikace   patofyziologie   terapie   MeSH
• senioři MeSH
• Check Tag
• lidé středního věku MeSH
• lidé MeSH
• mužské pohlaví MeSH
• senioři MeSH
• ženské pohlaví MeSH
• Publikační typ
• časopisecké články MeSH

• MeSH
• akční potenciály MeSH
• mikropočítače * MeSH
• neurony fyziologie   MeSH
• počítače * MeSH
• software * MeSH
• Publikační typ
• časopisecké články MeSH

Holmium-166 is a high-energy β--emitter radionuclide (~ 1.8 MeV) with a short half-life (~26.8h) that offers great potential as an alternative to 90Y for the treatment of liver cancer based on radioembolization. The possibility of quantitative Single Photon Emission Computed Tomography (SPECT) imaging of the main γ-ray emission at 80.6 keV, in addition to strong paramagnetic properties suitable for Magnetic Resonance Imaging (MRI), complement this therapeutic potential. The present paper describes the measurements carried out in three European radionuclide metrology laboratories for primary standardization of 166Ho and new determinations of X- and γ-ray photon-emission intensities in the framework of the European EMPIR project MRTDosimetry. New half-life measurements were also performed.

• Klíčová slova
• Activity standardization, Half-life measurements, Ho-166, MRTDosimetry project, Molecular radiotherapy, γ-spectrometry,
• MeSH
• dávka záření * MeSH
• holmium analýza   MeSH
• jednofotonová emisní výpočetní tomografie MeSH
• lidé MeSH
• nádory jater diagnostické zobrazování   radioterapie   MeSH
• radionuklidy analýza   MeSH
• Check Tag
• lidé MeSH
• Publikační typ
• časopisecké články MeSH
• Názvy látek
• Holmium-166 MeSH Prohlížeč
• holmium MeSH
• radionuklidy MeSH

PURPOSE: Environmental changes are potentially effective population-level physical activity (PA) promotion strategies. However, robust multisite evidence to guide international action for developing activity-supportive environments is lacking. We estimated pooled associations of perceived environmental attributes with objectively measured PA outcomes, between-site differences in such associations, and the extent to which perceived environmental attributes explain between-site differences in PA. METHODS: This was a cross-sectional study conducted in 16 cities located in Belgium, Brazil, Colombia, Czech Republic, Denmark, China, Mexico, New Zealand, Spain, United Kingdom, and United States of America. Participants were 6968 adults residing in administrative units stratified by socioeconomic status and transport-related walkability. Predictors were 10 perceived neighborhood environmental attributes. Outcome measures were accelerometry-assessed weekly minutes of moderate-to-vigorous PA (MVPA) and meeting the PA guidelines for cancer/weight gain prevention (420 min·wk of MVPA). RESULTS: Most perceived neighborhood attributes were positively associated with the PA outcomes in the pooled, site-adjusted, single-predictor models. Associations were generalizable across geographical locations. Aesthetics and land use mix-access were significant predictors of both PA outcomes in the fully adjusted models. Environmental attributes accounted for within-site variability in MVPA, corresponding to an SD of 3 min·d or 21 min·wk. Large between-site differences in PA outcomes were observed; 15.9%-16.8% of these differences were explained by perceived environmental attributes. All neighborhood attributes were associated with between-site differences in the total effects of the perceived environment on PA outcomes. CONCLUSIONS: Residents' perceptions of neighborhood attributes that facilitate walking were positively associated with objectively measured MVPA and meeting the guidelines for cancer/weight gain prevention at the within- and between-site levels. Associations were similar across study sites, lending support for international recommendations for designing PA-friendly built environments.

• MeSH
• akcelerometrie MeSH
• charakteristiky bydlení * MeSH
• chůze MeSH
• cvičení fyziologie   MeSH
• doprava MeSH
• dospělí MeSH
• lidé středního věku MeSH
• lidé MeSH
• mladiství MeSH
• mladý dospělý MeSH
• pohybová aktivita * MeSH
• průřezové studie MeSH
• senioři MeSH
• socioekonomické faktory MeSH
• zdravé chování MeSH
• životní prostředí - projekt * MeSH
• Check Tag
• dospělí MeSH
• lidé středního věku MeSH
• lidé MeSH
• mladiství MeSH
• mladý dospělý MeSH
• mužské pohlaví MeSH
• senioři MeSH
• ženské pohlaví MeSH
• Publikační typ
• časopisecké články MeSH
• práce podpořená grantem MeSH
• Research Support, N.I.H., Extramural MeSH
• Research Support, U.S. Gov't, P.H.S. MeSH

The aim of this study was to examine the influence of unilateral dorsal root section at the cervicothoracic level of the spinal cord on the spontaneous neuronal activity of medial thalamic nuclei in the rat. Single unit extracellular recordings from thalamic nuclei, nc. parafascicularis and nc. centralis lateralis, were obtained with glass micropipettes. The abnormal bursting activity of these nuclei following deafferentation was registered, although a correlation between the occurrence of this activity and the degree of autotomy behavior was not found. Such bursts were never observed in the studied thalamic nuclei of control rats.

• MeSH
• chování zvířat MeSH
• elektrofyziologie MeSH
• krysa rodu Rattus MeSH
• neurony fyziologie   MeSH
• nucleus medialis dorsalis thalami cytologie   fyziologie   MeSH
• pooperační období MeSH
• potkani Wistar MeSH
• rizotomie * MeSH
• sebepoškozování psychologie   MeSH
• zvířata MeSH
• Check Tag
• krysa rodu Rattus MeSH
• mužské pohlaví MeSH
• zvířata MeSH
• Publikační typ
• časopisecké články MeSH
• práce podpořená grantem MeSH

A new rapid assay of the yeast killer toxin K1 activity in Saccharomyces cerevisiae, the BCP (bromocresol purple) fluorescence test, was compared with two standard methods, the plating test and the well test. The BCP test is as precise as the plating test and more sensitive than the well test. Under suitable conditions, the test is universally applicable for determining the proportion of cells with a damaged plasma membrane in a population. A procedure was developed for calculating the results of all three tests in terms of a single well-defined unit (lethal or killer unit, LU).

• MeSH
• killer faktory kvasinek MeSH
• metody MeSH
• mykotoxiny toxicita   MeSH
• Saccharomyces cerevisiae - proteiny MeSH
• Saccharomyces cerevisiae účinky léků   MeSH
• Publikační typ
• časopisecké články MeSH
• práce podpořená grantem MeSH
• Názvy látek
• killer faktory kvasinek MeSH
• mykotoxiny MeSH
• Saccharomyces cerevisiae - proteiny MeSH

There are powerful pathways descending from the auditory cortex (AC) to the inferior colliculus (IC), yet their function is not fully understood. The aim of this study is to examine the effects of a reversible cortical inactivation, achieved by cooling of the AC, on the responses of neurons in the rat IC. Extracellular single-unit or multi-unit activity was recorded in the IC of anaesthetized rats with a 16-channel multielectrode probe introduced along the IC dorso-ventral axis through the dorsal cortex (DCIC) to the central nucleus of the IC (CIC). Cooling of the AC produced an increase in spontaneous activity and magnitude of the sound-evoked response in 47% of the IC neurons. Maximal changes in the neuronal activity were observed in the DCIC and the central part of the CIC. The final segments of the sustained responses to 60 ms stimuli and the off responses were more affected than the onset segments. Inactivation of the AC resulted in a suppression of the post-excitatory inhibition and neuronal adaptation, which was reflected in a pronounced enhancement of synchronized responses to a series of fast repeated clicks. The response parameters recovered, at least partly, to the pre-cooling levels 1 h after the cooling cessation. The frequency tuning properties of the IC neurons did not show any significant changes during the cooling period. The results demonstrate that AC cooling inactivates excitatory corticofugal pathways and results in a less activated intrinsic inhibitory network in the IC.

• Klíčová slova
• Auditory cortex, Cooling, Cortical inactivation, Efferent system, Inferior colliculus, Neurons,
• MeSH
• akustická stimulace MeSH
• časové faktory MeSH
• colliculus inferior metabolismus   patologie   patofyziologie   MeSH
• fyziologická adaptace MeSH
• GABAergní neurony metabolismus   MeSH
• nervový útlum MeSH
• potkani Long-Evans MeSH
• sluchová dráha patofyziologie   MeSH
• sluchové evokované potenciály MeSH
• sluchové korové centrum metabolismus   patologie   patofyziologie   MeSH
• terapeutická hypotermie * MeSH
• termoregulace * MeSH
• zvířata MeSH
• Check Tag
• ženské pohlaví MeSH
• zvířata MeSH
• Publikační typ
• časopisecké články MeSH
• práce podpořená grantem MeSH
• srovnávací studie MeSH