The factors determining longevity of different animals are incompletely defined. In this issue of Developmental Cell, Anzi et al. (2018) show that distinct strategies for postnatal pancreatic growth operate in different mammals and correlate with lifespan, with short-lived species exhibiting increasing pancreatic cell size and long-lived animals increasing cell number.
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| http://dx.doi.org/10.1016/j.devcel.2018.06.001 | DOI Listing |
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Surgical Outcomes for Nonmelanoma Skin Cancer of the Head and Neck.
Ann Plast Surg
January 2025
Department of Plastic Surgery, First Affiliated Hospital of Kunming Medical University, Kunming City, Yunnan Province, China.
Objectives: There is no consensus on elective lymphatic dissection of the parotid and neck for nonmelanoma skin cancer (NMSC) due to challenges in detecting occult spread to these regions. This study aimed to summarize clinical data and evaluate correlations between risk factors, nodular metastasis, and the need for elective parotidectomy in patients with cutaneous squamous cell carcinoma (CSCC), Merkel cell carcinoma (MCC), and apocrine carcinoma (AC) of the head and neck, all with clear surgical margins and negative imaging results for regional metastases.
Study Design: We retrospectively reviewed 166 patients with CSCC, one with MCC, and one with AC of the head and neck, all treated surgically between September 2006 and July 2022.
Organismal complexity strongly correlates with the number of protein families and domains.
Proc Natl Acad Sci U S A
February 2025
Duncan and Nancy MacMillan Cancer Immunology and Metabolism Center of Excellence, Rutgers Cancer Institute of New Jersey, New Brunswick, NJ 08901.
In the pregenomic era, scientists were puzzled by the observation that haploid genome size (the C-value) did not correlate well with organismal complexity. This phenomenon, called the "C-value paradox," is mostly explained by the fact that protein-coding genes occupy only a small fraction of eukaryotic genomes. When the first genome sequences became available, scientists were even more surprised by the fact that the number of genes (G-value) was also a poor predictor of complexity, which gave rise to the "G-value paradox.
View Article and Find Full Text PDFHistological differences among thrombi in thrombotic diseases.
Curr Opin Hematol
January 2025
Department of Pathology, Section of Oncopathology and Morphological Pathology, Faculty of Medicine, University of Miyazaki, Miyazaki, Japan.
Purpose Of Review: This review aims to summarize the histological differences among thrombi in acute myocardial infarction, ischemic stroke, venous thromboembolism, and amniotic fluid embolism, a newly identified thrombosis.
Recent Findings: Acute coronary thrombi have a small size, are enriched in platelets and fibrin, and show the presence of fibrin and von Willebrand factor, but not collagen, at plaque rupture sites. Symptomatic deep vein thrombi are large and exhibit various phases of time-dependent histological changes.
Impaired Granularity in T cell Subsets but not in B cell Favors the Carcinogenesis of the Breast: A Preliminary Study in Indonesian Women Cohort.
Asian Pac J Cancer Prev
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Research Center for Vaccine and Drugs, The National Research and Innovation Agency (BRIN), South Tangerang 15310, Indonesia.
Objective: The progress made in cancer immunology has led to the development of innovative therapeutic strategies. However, despite these advances, the superficial characteristics of immune cells have been frequently overlooked: This oversight may be attributed to a limited understanding of the intricate relationships between immune cells and their microenvironment. This study seeks to address this limitation by comprehensively examining cell size and granularity in breast cancer (BC) patients and healthy donors (HD).
View Article and Find Full Text PDFPlatelet membrane-modified exosomes targeting plaques to activate autophagy in vascular smooth muscle cells for atherosclerotic therapy.
Drug Deliv Transl Res
January 2025
Center for Coronary Heart Disease, Department of Cardiology, National Center for Cardiovascular Diseases of China, State Key Laboratory of Cardiovascular Disease, Fu Wai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, 167 Beilishi Rd, Beijing, 100037, China.
Atherosclerosis is one of the leading causes of ischemic cardiovascular disease worldwide. Recent studies indicated that vascular smooth muscle cells (VSMCs) play an indispensable role in the progression of atherosclerosis. Exosomes derived from mesenchymal stem cells (MSCs) have demonstrated promising clinical applications in the treatment of atherosclerosis.
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