In dogs with electrodes implanted in the smooth muscle wall of the stomach, small intestine and colon, i.v. administration of bombesin (50, 100, 200 and 300 ng/kg) during the 2nd phase of the migrating myoelectric complex (MMC) increased the dose-dependent frequency of slow potential in the small intestine and stomach leaving unchanged the frequency of slow potentials in the colon. Single doses of 50 or 200 ng/kg bombesin during the 2nd phase of the MMC caused a short-term inhibition of the gastric and intestinal spike activity followed by its increase, the active period of the MMC being prolonged.
Download full-text PDF |
Source |
|---|
Publication Analysis
Top Keywords
Similar Publications
Relationship between handgrip strength and timed up-and-go test on hospitalization costs in older adults: a population-based study.
BMC Public Health
January 2025
Saw Swee Hock School of Public Health, National University of Singapore, Singapore, Singapore.
Background: Weak handgrip strength and slow timed up-and-go (TUG) time are known risk factors for hospitalization among older adults; however, few studies have investigated the relationships between these physical tests and future hospitalization costs.
Methods: We used data from 13,613 participants in the population-based Singapore Chinese Health Study who underwent assessment for handgrip strength and TUG time at a mean age of 74 years. Hospitalization costs for the subsequent year, among those who survived for at least one year thereafter, were ascertained via linkage with administrative healthcare finance data.
Spatiotemporal network dynamics and structural correlates in the human cerebral cortex in vitro.
Prog Neurobiol
January 2025
Institute of Biomedical Investigations August Pi i Sunyer (IDIBAPS), Systems Neuroscience, 08036 Barcelona, Spain; Institució Catalana de Recerca i Estudis Avançats (ICREA), 08010 Barcelona, Spain. Electronic address:
Elucidating human cerebral cortex function is essential for understanding the physiological basis of both healthy and pathological brain states. We obtained extracellular local field potential recordings from cortical slices of neocortical tissue from refractory epilepsy patients. Multi-electrode recordings were combined with histological information, providing a two-dimensional spatiotemporal characterization of human cortical dynamics in control conditions and following modulation of the excitation/inhibition balance.
View Article and Find Full Text PDFDeciphering the abnormal IR spectral density of phthalic acid dimer crystals: Unveiling the role of the dynamical effects of the Davydov coupling and the mechanisms of relaxation.
Spectrochim Acta A Mol Biomol Spectrosc
January 2025
Physics Department, College of Science, King Faisal University, Al Ahsa, 31982, Saudi Arabia. Electronic address:
To consistently determine the anomalous characteristics of phthalic acid crystal (PAC) derivatives, we performed quantum dynamics simulations of the infrared spectral density of the h-PAC and d-PAC isotopomers that show up in the H/D isotopic frequency domain at two different temperatures viz. 77 and 298 K. A theoretical framework explaining the dynamical cooperative interactions within the hydrogen bonds (HBs) in the PAC crystals across a simulation of IR spectral density of the stretching band was developed.
View Article and Find Full Text PDFIntensive Speech Therapy for Hypokinetic Dysarthria in Parkinson's Disease: Targeting the Five Subsystems of Speech Production with Clinical and Instrumental Evaluation.
NeuroSci
January 2025
IRCCS San Raffaele Roma, 00163 Rome, Italy.
: Hypokinetic dysarthria is a speech disorder observed in almost 90% of PD patients that can appear at any stage of the disease, usually worsening as the disease progresses. Today, speech therapy intervention in PD is seen as a possible therapeutic option to alleviate and slow down the progression of symptoms. This study aims to investigate the validity of traditional speech therapy in dysarthria with the aim of improving the quality of life of PD patients, by comparing subjective clinical assessment with objective instrumental measures (IOPI and voice analysis).
View Article and Find Full Text PDFChanges in the Spatial Structure of Synchronization Connections in EEG During Nocturnal Sleep Apnea.
Clocks Sleep
December 2024
Institute of Physics, Saratov State University, Astrahanskaia, 83, Saratov 410012, Russia.
This study involved 72 volunteers divided into two groups according to the apnea-hypopnea index (AHI): AHI>15 episodes per hour (ep/h) (main group, n=39, including 28 men, median AHI 44.15, median age 47), 0≤AHI≤15ep/h (control group, n=33, including 12 men, median AHI 2, median age 28). Each participant underwent polysomnography with a recording of 19 EEG channels.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!