Hemorrhagic tendency is frequent in uremic patients and is often associated with prolonged bleeding time and decreased platelet functions in vitro. Similarly, in multiple myeloma, platelet functions are affected, mainly by the inhibitory effect of paraprotein. We have studied patients with renal insufficiency and multiple myeloma to investigate the possible relation of oxidative stress to platelet functions, adhesion and aggregation activity. We observed diminished platelet aggregation response to collagen, ADP and thrombin receptor-activating peptide (TRAP) in both groups of patients as compared with normals. The adhesion of platelets to fibrin dimers was also diminished. Malondialdehyde concentration as a criterion of oxidative stress was significantly enhanced in both groups of patients together with increased concentrations of vitamins A and E. It seems to be possible that oxidative stress contributes to modification of adhesion proteins and fibrinogen and, thus, augments the observed inhibitory influence of vitamin E on platelet aggregation and adhesion. In conclusion, the concerted influence of both malondialdehyde and vitamins A and E can contribute to diminished platelet functions in renal insufficiency and augment the inhibitory influence of paraprotein on platelet functions in multiple myeloma.
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http://dx.doi.org/10.1016/s0049-3848(02)00003-8 | DOI Listing |
Exp Ther Med
February 2025
Department of Hematology, Etlik City Hospital, Ankara 06170, Turkey.
Whilst severe liver dysfunction is rarely encountered at the time of diagnosis for patients with acute myeloid leukemia (AML), mild elevations aminotransferase (<5 times the upper limit of normal) may be more frequently seen. Liver dysfunction at the time of diagnosis of AML is a parameter that requires investigation and can assist the clinicians in predicting prognosis. The aim of the present study was to investigate liver dysfunction at the time of diagnosis using the assoicated parameters in patients with AML.
View Article and Find Full Text PDFClin Nephrol Case Stud
January 2025
Department of Medicine.
Minimal change disease (MCD) accounts for 10 - 15% of idiopathic nephrotic syndromes in adults. Chronic hepatitis C virus (HCV) infection is rarely ascribed as a cause of MCD and was previously associated with interferon-based therapy. MCD in treatment-naïve chronic HCV infection is extremely rare, with only 3 cases reported in the literature.
View Article and Find Full Text PDFJ Feline Med Surg
January 2025
Department of Clinical Studies, Ontario Veterinary College, University of Guelph, Guelph, Ontario, Canada.
Objectives: To evaluate the associations between sex, age, breed and collection site on platelet count and platelet clumping in feline blood samples.
Methods: Cats presenting to a primary care feline hospital from January 2016 to January 2017 were recruited. Any cat undergoing blood collection for a complete blood count was eligible.
Ann Ital Chir
January 2025
Department of Obstetrics and Gynecology, Center for Reproductive Medicine, The Fourth Affiliated Hospital of School of Medicine, and International School of Medicine, International Institutes of Medicine, Zhejiang University, 322000 Yiwu, Zhejiang, China.
Aim: This study aimed to explore influencing factors and develop a predictive model of endometrial polyps (EP) recurrence after hysteroscopic resection.
Methods: This retrospective study included 180 patients who underwent hysteroscopic resection for EP between January 2021 to December 2023. The patients were divided into a modeling group (n = 135) and a validation group (n = 45) in a 3:1 ratio.
Cell Commun Signal
January 2025
Digestive Disease Center, The First Affiliated Hospital of Jiamusi University, Jiamusi, Heilongjiang Province, 154000, China.
Background: Programmed cell death ligand 1 (PD-L1) expression on immune cells is correlated with the efficacy of immune checkpoint inhibitor (ICI) therapy in various types of cancer. Platelets are important components of the tumour microenvironment (TME) and are widely involved in the development of many types of cancer including colorectal cancer (CRC). However, the role of PD-L1 positive platelets in ICI therapy for CRC remains unknown.
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