Isoproterenol (IPR) was shown to alter some parameters of the parotid gland acinar cell cycle in 8-year-old rats. Although the deoxyribonucleic acid (DNA) synthetic period (S) was decreased and the pre-DNA synthetic (G1) period was lengthened, there were no differences in the total cycle time. There was an increase in the 3H-thymidine labeling index from 35.7 to 50.8% combined with a decrease in the value of the mitotic index from 2.64 to 2.16% after IPR was administered. The results suggest that noncycling (G0) cells may be involved in the normal differentiation of the parotid gland and that IPR alters the transition of acinar cells between the cycling and noncycling state.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1177/00220345760550041101 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Augmenting motion artifacts to enhance auto-contouring of complex structures in cone-beam computed tomography imaging.
Phys Med Biol
January 2025
Imaging Laboratory (iLab), Varian Medical Systems, Siemens Healthcare, Baden, Switzerland.
. To develop an augmentation method that simulates cone-beam computed tomography (CBCT) related motion artifacts, which can be used to generate training-data to increase the performance of artificial intelligence models dedicated to auto-contouring tasks.The augmentation technique generates data that simulates artifacts typically present in CBCT imaging.
View Article and Find Full Text PDFSurgical management of benign tumors of the parotid gland: the advantages of extracapsular dissection compared to traditional surgical techniques.
Front Surg
January 2025
General Surgery III, Department of General Surgery and Medical-Surgical Specialties, University of Catania, AOU Policlinico "G. Rodolico - San Marco", Catania, Italy.
Introduction: Salivary gland tumors represent only 3%-6% of all head and neck neoplasms, and approximately 70% of these tumors are located in the parotid gland. Most of these tumors are found in the more abundant superficial portion of the parotid gland, lateral to the facial nerve (FN). For many years, the location of the facial nerve between the superficial and deep segments of the parotid gland hindered adequate tumor extirpation.
View Article and Find Full Text PDFEpidemiological Characteristics of Mumps Cases in the Kingdom of Bahrain From 2012 to 2022.
Cureus
December 2024
Department of Family and Community Medicine, Arabian Gulf University, Manama, BHR.
Introduction: Mumps is a vaccine-preventable disease caused by the paramyxovirus affecting the salivary gland and may be complicated by orchitis, oophoritis, and encephalitis. This study aims to describe the epidemiology, clinical presentation, and transmission of mumps cases in the Kingdom of Bahrain between 2012 and 2022.
Methodology: A retrospective cross-sectional study was conducted using national surveillance data of confirmed mumps cases, including all age groups and both Bahraini and non-Bahraini nationals, from January 2012 to December 2022.
Value of multi-parameter I-MIBG scintigraphy in the differential diagnosis of Parkinson's disease.
EJNMMI Res
January 2025
Department of Nuclear Medicine, Beijing Friendship Hospital, Capital Medical University, 95 Yong'an Road, Xicheng District, Beijing, China.
Background: I-MIBG scintigraphy plays a significant role in diagnosing Parkinson's disease (PD), with most studies primarily targeting cardiac uptake and relying on traditional ratio-based parameters for assessment. However, due to variations in scanning conditions and image processing methodologies, the clinical utility of different parameters remains a subject of debate. This study aims to evaluate the diagnostic accuracy of multi-parameter I-3-Iodobenzylguanidine (MIBG) scintigraphy and to identify the most reliable metrics for distinguishing PD from Parkinson-plus syndromes.
View Article and Find Full Text PDFEvaluation of parotid and submandibular salivary glands with ultrasonography in diabetic patients.
Clin Oral Investig
January 2025
Department of Oral and Maxillofacial Radiology, Faculty of Dentistry, Zonguldak Bulent Ecevıt University, Zonguldak, Turkey.
Objectives: The main symptom of diabetes mellitus (DM) is hyperglycaemia, and patients with DM often have microvascular complications, such as retinopathy, neuropathy, and nephropathy; macrovascular complications, such as coronary heart disease, peripheral arterial disease and cerebrovascular disease; and oral complications, such as xerostomia, hyposalivation and periodontal disease. The main aim of this study was to evaluate the submandibular and parotid glands in type 2 DM patients and healthy individuals and to determine the changes in the salivary glands caused by diabetes.
Materials And Methods: In this study, the salivary glands of 100 patients (50 individuals with type 2 DM and 50 healthy individuals) were evaluated by ultrasonography (US).
Want 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!