Unique stereochemistry of the third-generation beta-adrenoblockers is a basis of advantages of the new drugs such as carvedilol. Data on the stereochemistry beta-adrenoblockers and the influence of their optical activity on the pharmacological effects of related drugs are presented. Main steps in the practical invest gation of carvedilol stereoisomers are reviewed. Clinical aspects of the use of carvedilol, representing a racemic mixture of two enantiomers, in the treatment chronic heart failure, arterial hypertension, and coronary heart disease are considered.
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Sustained effects of bladder point-of-care ultrasound simulation exercise on nursing students: A prospective cohort study.
BMC Med Educ
January 2025
School of Nursing, Seirei Christopher University, Hamamatsu, Shizuoka, Japan.
Background: Point-of-care ultrasound (POCUS) can be used in a variety of clinical settings and is a safe and powerful tool for ultrasound-trained healthcare providers, such as physicians and nurses; however, the effectiveness of ultrasound education for nursing students remains unclear. This prospective cohort study aimed to examine the sustained educational impact of bladder ultrasound simulation among nursing students.
Methods: To determine whether bladder POCUS simulation exercises sustainably improve the clinical proficiency regarding ultrasound examinations among nursing students, evaluations were conducted before and after the exercise and were compared with those after the 1-month follow-up exercise.
The myometrial transcriptome changes in mares with endometrosis.
Sci Rep
January 2025
Institute of Animal Reproduction and Food Research, Polish Academy of Sciences in Olsztyn, 10-748, Olsztyn, Poland.
Mares with endometrosis exhibit histological changes not only in the endometrium but also in the myometrium that suggest possible functional impairment. The molecular background of these changes is not well understood. We hypothesize that the transcriptomic profile of the mare myometrium varies depending on the degree of endometrosis in mares.
View Article and Find Full Text PDFPredictors, patterns, and correlates of moderate-severe psychological distress among New York City College Students during Waves 2-4 of COVID-19.
Sci Rep
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Division of Infectious Diseases, Department of Medicine, Columbia University Irving Medical Center, 622 West 168th Street, Ste. 876, New York, NY, 10032, USA.
The COVID-19 pandemic may have exacerbated mental health conditions by introducing and/or modifying stressors, particularly in university populations. We examined longitudinal patterns, time-varying predictors, and contemporaneous correlates of moderate-severe psychological distress (MS-PD) among college students. During 2020-2021, participants completed self-administered questionnaires quarterly (T1 = 562, T2 = 334, T3 = 221, and T4 = 169).
View Article and Find Full Text PDFStructural, morphological and biological assessment of magnetic hydroxyapatite with superior hyperthermia potential for orthopedic applications.
Sci Rep
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Department of Chemistry, School of Advanced Sciences, Vellore Institute of Technology, Vellore, Tamil Nadu, 632014, India.
Hydroxyapatite (HA) is an important constituent of natural bone. The properties of HA can be enhanced with the help of various ionic substitutions in the crystal lattice of HA. Iron (Fe) is a vital element present in bones and teeth.
View Article and Find Full Text PDFHigh-temperature structural disorders stabilize hydrous aluminosilicates in the mantle transition zone.
Nat Commun
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Center for High Pressure Science, State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao, 066004, China.
Hydrous aluminosilicates are important deep water-carriers in sediments subducting into the deep mantle. To date, it remains enigmatic how hydrous aluminosilicates withstand extremely high temperatures in the mantle transition zone. Here we systematically investigate the crystal structures and chemical compositions of typical hydrous aluminosilicates using single-crystal X-ray diffraction, electron probe microanalyzer, and nanoscale secondary ion mass spectrometry.
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