The plasma levels of some blood coagulation parameters; prothrombin time, (PT), partial thromboplastin time with kaolin (PTTK), thrombin clotting time, (TCT), fibrinogen and factor X assay were determined in 50 Nigerian homozygous (HbSS) patients and 50 HbAA healthy individuals for the purpose of assessing their baseline values and susceptibility of patients with sickle cell disease (SCD) to hyper coagulability. Standard procedures were used for all variables. The mean age of the study participants was 21.7 +/- 5.0 years. The mean PT of 13.7 +/- 1.4 s in HbSS patients was found to be significantly longer than the mean PT value of 12.9 +/- 1.0 in HbAA control subjects (p < 0.001). The mean PTTK values of 46.0 +/- 9.6 s in HbSS patients was also found to be significantly higher than the 41.0 +/- 3.7 s recorded among the control subjects (p < 0.001). The mean TCT of 6.4 +/- 0.8 s in HbSS patients was however found to be significantly lower than the mean value of 10.6 +/- 0.8 s obtained in the control group. Fibrinogen level (4.1 +/- 2.1 g/l) in HbSS patients and 2.8 +/- 0.9 g/l in HbAA controls was also found to be significantly different (p < 0.001). Factor X level in the sickle cell patients, (64.6 +/- 14.9%) was equally found to be significantly lower than that of the apparently healthy HbAA control individuals (95.2 +/- 7.2%) (p < 0.001).
Download full-text PDF |
Source |
---|---|
http://dx.doi.org/10.1080/10245330600841287 | DOI Listing |
Sickle cell disease (SCD) is the most common genetic disease in the world and a societal challenge. SCD is characterized by multi-organ injury related to intravascular hemolysis. To understand tissue-specific responses to intravascular hemolysis and exposure to heme, we present a transcriptomic atlas in the primary target organs of HbSS vs HbAA transgenic SCD mice.
View Article and Find Full Text PDFMediterr J Hematol Infect Dis
January 2025
Pediatric Intensive Care Unit, Hospital Professor Doutor Fernando Fonseca, Unidade Local de Saúde Amadora/Sintra, Portugal.
Background: Red Blood Cell Exchange (RBCX) is a common treatment for pediatric sickle cell disease (SCD). Since inflammation with elevated proinflammatory cytokines plays a crucial role in SCD, this study hypothesized that RBCX might lower these cytokines and aimed to assess the impact of this technique on these markers.
Methods: Prospective and observational study of pediatric SCD patients (HbSS genotype) enrolled in a chronic RBCX program at a Portuguese Hospital from October 2022 to August 2024.
Retina
January 2025
Department of Ophthalmology, Amsterdam UMC, Amsterdam, The Netherlands.
Purpose: To evaluate the presence and progression of maculopathy in patients with sickle cell disease (SCD) using Optical Coherence Tomography (OCT) and OCT-Angiography (OCTA), and to identify clinical/laboratory risk factors for progression during follow-up.
Methods: Complete ophthalmic examination, including fundoscopy and macular SD-OCT/OCTA scans, was performed in consecutive SCD-patients (HbSS/HbSβ0/HbSβ+/HbSC genotype) during baseline and follow-up visits. SCR stage was based on fundoscopy instead of the Goldberg classification, since fluorescein angiography was not routinely used.
Front Mol Biosci
December 2024
Department of Microbiology, Biochemistry and Immunology, Morehouse School of Medicine, Atlanta, GA, United States.
Background Sickle cell disease (SCD) is a hereditary disorder marked by abnormal hemoglobin (HbS), leading to chronic hemolytic anemia, vaso-occlusive crises (VOCs), and multi-organ complications. In India, the prevalence of SCD is highest among tribal populations in states like Madhya Pradesh, Maharashtra, Odisha, and Assam, with the disease burden exacerbated by limited healthcare access, especially in rural regions. This study provides a comprehensive analysis of the demographic profile, clinical features, and treatment patterns of SCD patients at a tertiary healthcare center in Upper Assam, where the prevalence of SCD is high among the tea tribe communities.
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!