JM-1232(-), a newly manufactured isoindole derivative, shows sedative effect at a lower concentration compared with propofol. In the present study, we analyzed the response of the central respiratory activity to JM-1232(-). The brainstem-spinal cord of a newborn rat was isolated and was continuously superfused with oxygenated artificial cerebrospinal fluid (ACSF). Rhythmic inspiratory burst activity was recorded from C4 spinal ventral root using a glass suction electrode. We measured C4 burst rate and amplitude of integrated C4 activity. After obtaining a control recording, the preparation was superfused with ACSF containing JM-1232(-) at 10, 100 or 500 microM for 10 min. The application of both 10 and 100 microM JM-1232(-) did not decrease C4 burst rate significantly. However, 500 microM JM-1232(-) reduced C4 burst rate. On the contrary, C4 burst amplitude was not affected by the application of JM-1232(-) for 10 min at any concentrations. In conclusion, JM-1232(-) at a low concentration (but presumably higher than hypnotic dose), did not depress the central respiratory activity, whereas at a high concentration depression was seen.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1007/978-1-4419-5692-7_23 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Our Experience of Managing Central Airway Tumors: Anesthesia Perspectives.
Ann Card Anaesth
January 2025
Department of Cardiac Anesthesia, Amrita Institute of Medical Sciences, Kochi, Kerala, India.
Adult patients with central airway tumors commonly present with dyspnea on exertion. These patients may remain asymptomatic until more than half of the airway diameter is obliterated. Anesthesia for debulking a central airway tumor is challenging.
View Article and Find Full Text PDFImpact of co-infections and immune responses on clinical severity of human adenovirus 3 and 7 infections in hospitalized children with lower respiratory tract infections: a comparative study.
Front Cell Infect Microbiol
January 2025
Department of Respiratory Medicine, Children' s Hospital Affiliated to Capital Institute of Pediatrics, Beijing, China.
Background: The pathogenic distribution of co-infections and immunological status of patients infected with human adenovirus serotypes 3 or 7 (HAdV-3 or HAdV-7) were poorly understood.
Methods: This study involved a retrospective analysis of respiratory specimens collected from enrolled children with lower respiratory tract infections (LRTIs), positive for HAdV-3 or HAdV-7 from January 2017 to December 2019. Demographic data, clinical features, laboratory and radiographic findings were compared to delineate the impact of co-infections, and immune responses on clinical severity of HAdV-3 or HAdV-7 infections.
A nomogram for predicting neonatal acute respiratory distress syndrome in patients with neonatal pneumonia after 34 weeks of gestation.
Front Pediatr
January 2025
Department of Pediatrics, Dandong Central Hospital, China Medical University, Dandong, China.
Objective: To establish a prediction nomogram for early prediction of neonatal acute respiratory distress syndrome (NARDS).
Methods: This is a retrospective cross-sectional study conducted between January 2021 and December 2023. Clinical characteristics and laboratory results of cases with neonatal pneumonia were compared in terms of presence of NARDS diagnosis based on the Montreux Definition.
A Pilot Case-Control Study of Muscle and Bone Health Status in Patients Who Have Recovered From COVID-19 Infection.
Cureus
December 2024
Department of Health Sciences, Savitribai Phule Pune University, Pune, IND.
Background: Coronavirus disease 2019 (COVID-19), resulting from the novel severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), affects various bodily systems, including the heart, central nervous system, muscles, and bones, all of which harbor angiotensin-converting enzyme 2 (ACE-2) receptors similar to those in the respiratory system. However, research on the inflammatory response and its impact on systems such as the musculoskeletal one is relatively scarce. Our study aimed to investigate bone and muscle metrics as well as handgrip strength in individuals who recuperated from COVID-19 infection.
View Article and Find Full Text PDFPhylogeography and biological characterization of H12N2 virus isolated from whooper swan in Central China.
Front Microbiol
January 2025
College of Veterinary Medicine, Shanxi Agricultural University, Jinzhong, China.
Wild birds and waterfowl serve as the natural reservoirs of avian influenza viruses (AIVs). When AIVs originating from wild birds cross species barriers to infect mammals or humans, they pose a significant threat to public health. The H12 subtype of AIVs primarily circulates in wild birds, with relatively few isolates reported worldwide, and the evolutionary and biological characteristics of H12 subtype AIVs remain largely unknown.
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!