Pethidine's stimulant action on the 22-day pregnant rat isolated uterus does not involve receptors sensitive to methysergide and is unlikely to involve the synthesis and release of endogenous prostaglandins. The sensitivity of pethidine-induced contractions to verapamil suggests that mobilization of extracellular calcium is necessary for pethidine's action.
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http://dx.doi.org/10.1111/j.2042-7158.1987.tb03429.x | DOI Listing |
J Physiol Sci
January 2025
Department of Molecular Oral Physiology, Institute of Biomedical Sciences, Tokushima University Graduate School, 3-18-15 Kuramoto, 770-8504, Tokushima, Japan. Electronic address:
The balance of activity between glutamatergic and GABAergic networks is particularly important for oscillatory neural activities in the brain. Here, we investigated the roles of GABA receptors in network oscillation in the oral somatosensory cortex (OSC), focusing on NMDA receptors. Neural oscillation at the frequency of 8-10 Hz was elicited in rat brain slices after caffeine application.
View Article and Find Full Text PDFCan J Psychiatry
January 2025
Division of Translational Therapeutics, Department of Pediatrics, Faculty of Medicine, University of British Columbia, Vancouver, Canada.
Objective: Stimulant drug treatment in preschool-age children for attention-deficit hyperactivity disorder (ADHD) as well as the concomitant use of antipsychotic drugs is largely unstudied in terms of longitudinal outcomes. We characterized longitudinal patterns of stimulant drug use in children diagnosed for ADHD and analyzed the mental health disorders leading to add-on therapy with antipsychotics.
Method: The study population comprised of children and adolescents (age: 0-19 years) in the province of British Columbia (BC), Canada, with at least one dispensing for any psychotropic drug between 1997 and 2017 ( = 144,825).
J Fluoresc
January 2025
Department of Applied Physics, School of Applied Natural Sciences, Adama Science and Technology University, PO Box 1888, Adama, Ethiopia.
In this research, the photophysical properties of metformin hydrochloride (MF-HCl) were studied using spectroscopic and molecular docking techniques. The interaction between metformin hydrochloride and caffeine is essential for understanding the pharmacokinetics of metformin, particularly in populations with high caffeine consumption. Metformin is a first-line medication for managing type 2 diabetes, while caffeine is a widely consumed dietary stimulant.
View Article and Find Full Text PDFMolecules
January 2025
Department of Experimental Dermatology and Cosmetology, Jagiellonian University Medical College, ul. Medyczna 9, 30-688 Krakow, Poland.
Caffeine has recently attracted attention as a potential remedy for hair loss. In the present review, we look into the molecule's possible mechanisms of action and pharmacodynamics. At the molecular level, it appears that the physiological effects of caffeine are mainly due to the molecule's interaction with adenosine pathways which leads to an increase in cAMP level and the stimulation of metabolic activity in the hair follicle.
View Article and Find Full Text PDFArch Microbiol
January 2025
School of Basic and Applied Sciences, Department of Biological Sciences, Dayananda Sagar University, Innovation Campus, Kudlu Gate, Hosur Rd, Bengaluru, 560 068, India.
To explore the mechanistic underpinnings of caffeine as a potent antibacterial against Staphylococcus aureus ATCC 25923 via in vitro functional assays, whole-genome sequencing, and in silico docking studies. In vitro studies established that caffeine's minimum inhibitory concentration (MIC) against S. aureus ATCC 25923 is 0.
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