A ranch in central South Dakota had a number of dead calves because of arsenic poisoning. The clinical picture included diarrhea, central nervous system signs, and death. Gross necropsy findings included adequate body fat, stomachs full of normal-appearing ingesta, and large amounts of greenish brown watery fluid in the intestine and colon. Microscopically there was severe lymphoid tissue necrosis in the mesenteric lymph nodes and gut-associated lymphoid tissue. Chemical analysis of kidneys showed no significant amounts of lead; however, kidney arsenic concentrations were 25 to 44 ppm. The source was a small pile of Paris Green (common name for cupric acetoarsenite) found in an old dump site in the pasture.
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http://dx.doi.org/10.1177/104063870401600512 | DOI Listing |
Eur J Nucl Med Mol Imaging
January 2025
AIDS Imaging Research Section, Division of Clinical Research, NIAID, NIH, Poolesville, MD, USA.
Purpose: Following the initial reports demonstrating the feasibility of immunoPET imaging of simian immunodeficiency virus (SIV) using gp120-targeting monoclonal antibodies in non-human primates, replication efforts of the imaging system in human immunodeficiency virus (HIV)-infected individuals have yielded conflicting results. Herein, we used two anti-gp120 antibodies, 7D3 and ITS103.01LS-F(ab'), to interrogate the reproducibility of gp120-targeting probes for immunoPET imaging of SIV in rhesus macaques.
View Article and Find Full Text PDFJ Cell Mol Med
February 2025
Department of Thoracic Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China.
Mucosa-associated lymphoid tissue (MALT) lymphoma is an extranodal low-grade non-Hodgkin lymphoma that extremely rarely localises to the mediastinum. A 34-year-old female with chronic arthralgia, sicca and rash was found to have a well-demarcated mediastinal cystic mass with equivocal nodular enhancement within the cystic wall on chest CT during a workup for Sjögren's syndrome. Subsequent Ga-Pentixafor-PET/CT revealed focal uptake increase within the cystic capsule.
View Article and Find Full Text PDFCell Biochem Funct
February 2025
Departamento de Ciências BioMoleculares, Faculdade de Ciências Farmacêuticas de Ribeirão Preto, USP, Ribeirão Preto, São Paulo, Brazil.
Increased oxidative stress and apoptosis are key mechanisms of thymic atrophy induced by cyclophosphamide (CYP). Atrophy leads to changes in the thymic microenvironment and disrupts T cell maturation. The hormone melatonin displays antioxidant and antiapoptotic effects.
View Article and Find Full Text PDFPhysiology (Bethesda)
January 2025
Department of Medicine, Mayo Clinic College of Medicine and Science, Rochester, MN, USA.
As life expectancy increases globally, the prevalence and severity of age-related disease has risen, significantly impacting patients' quality of life and increasing dependency on the health care system. Age-related diseases share several pathological commonalities, and emerging evidence suggests that targeting these biological processes ameliorate multiple age-related diseases. Immune aging plays a critical role in the pathogenesis of age-related diseases, given its involvement not only in controlling infection and cancer but also in facilitating tissue homeostasis and repair.
View Article and Find Full Text PDFExp Ther Med
March 2025
Human Genetics Institute 'Dr Enrique Corona Rivera', Department of Molecular Biology and Genomics, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Guadalajara, Jalisco 44340, México.
Fanconi anemia (FA) is the most common hereditary bone marrow failure syndrome, with an incidence of 1 in 5,000,000. This disease is caused by an alteration in one of the 23 genes associated with the FA/BRCA DNA repair pathway, which is responsible for repairing interstrand bridges generated during homologous recombination. FA has been associated with a predisposition to other types of neoplasm.
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