Association of Sickle Cell Trait With Ischemic Stroke Among African Americans

This meta-analysis examines whether sickle cell trait is associated with a higher risk of incident ischemic stroke among African Americans.
Source: JAMA Neurology - Category: Neurology Source Type: research

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Abstract Sickle cell disease (SCD) is associated with chronic hemolytic anemia and a heightened inflammatory state. The causal role of inflammatory pathways in stroke associated with SCD is unclear. Therefore, the hypothesis that deletion of the non-hematopoietic interleukin-1 receptor (IL-1R) pool may be beneficial in SCD was pursued. Since potential deleterious effects of IL-1R signaling in SCD could be mediated via downstream production of interleukin-6 (IL-6), the role of the non-hematopoietic IL-6 pool was also addressed. Bone marrow transplantation (BMT) from SCD to wild-type (WT) recipient mice was used to ...
Source: Haematologica - Category: Hematology Authors: Tags: Haematologica Source Type: research
Conclusion This is one of the few studies analyzing the association of recent cannabis use and AIS using admission urine toxicology test independent of polysubstance use. Although our study has limitations, we did not find an independent association between recent cannabis use and the incidence of AIS. Further studies using urine toxicology tests with larger sample size and including dosage of cannabis exposure should be conducted.
Source: Neurology Clinical Practice - Category: Neurology Authors: Tags: All Cerebrovascular disease/Stroke, Other toxicology Research Source Type: research
Moyamoya vasculopathy (MMV) is characterized by intracranial vascular stenosis or occlusion of bilateral terminal internal carotid arteries, along with collateral vascular networks around the narrowing arteries resembling a “puff of smoke”. Two major categories of MMV include 1) an idiopathic, presumably genetic, form or moyamoya disease (MMD), and 2) moyamoya syndrome (MMS) where there are associated conditions such as atherosclerosis, sickle cell disease and neurofibromatosis. MMV can result in ischemic or hemorr hagic stroke, transient ischemic attack (TIA), seizures, headache, and cognitive impairment.
Source: Parkinsonism and Related Disorders - Category: Neurology Authors: Tags: Correspondence Source Type: research
CONCLUSIONS: There is no evidence for managing adults, or children who do not have HbSS sickle cell disease. In children who are at higher risk of stroke and have not had previous long-term transfusions, there is moderate quality evidence that long-term red cell transfusions reduce the risk of stroke, and low quality evidence they also reduce the risk of other sickle cell disease-related complications. In primary and secondary prevention of stroke there is low quality evidence that switching to hydroxyurea with phlebotomy has little or no effect on the liver iron concentration. In secondary prevention of stroke there is lo...
Source: Cochrane Database of Systematic Reviews - Category: General Medicine Authors: Tags: Cochrane Database Syst Rev Source Type: research
CONCLUSIONS: This survey solicited the current practice variations in RCE from a diverse range of practice sites. Many sites reported similar practice patterns and challenges but some variations emerged. To our knowledge, this survey represents the largest and most in-depth investigation of the use of RCE for patients with SCD, and could inform future studies in the field. PMID: 32583456 [PubMed - as supplied by publisher]
Source: Transfusion - Category: Hematology Authors: Tags: Transfusion Source Type: research
Overt stroke in adults with sickle cell anemia (SCA) continues to be a major cause of morbidity and mortality, while no evidence-based strategy for prevention has been reached so far. Although transcranial Doppler ultrasonography represents the most important tool for identifying young patients with SCA at risk of primary stroke, strategies for stroke prediction in adulthood remain challenging. Emerging data suggest that oxidative stress may exert a pivotal role in the pathogenesis of ischemic brain injury.
Source: Journal of the Neurological Sciences - Category: Neurology Authors: Source Type: research
Demystifying Medicine Lecture Series Although the fundamental molecular pathophysiology of sickle cell anemia was elucidated in studies of this genetic disease starting more than 70 years ago, it is only in about the last two decades that this knowledge has led to specific therapies. Indeed in the last decade serious attention has turned to the possibility of a genetic cure of this condition. Have we finally cured sickle cell anemia? Not quite, but we may be on the cusp. Really. In a dozen clinical trials planned or underway, some at the NIH Clinical Center, researchers are applying gene therapy to cure this well-studied g...
Source: Videocast - All Events - Category: General Medicine Tags: Upcoming Events Source Type: video
Abstract Ischemia-reperfusion (I/R) injury is a serious condition which is associated with myocardial infarction, stroke, acute kidney injury, trauma, circulatory arrest, sickle cell disease, and sleep apnea and can lead to high morbidity and mortality. Salts of zinc (Zn) are commonly used by humans and have protective effects against gastric, renal, hepatic, muscle, myocardial, or neuronal ischemic injury. The present review evaluates molecular mechanisms underlying the protective effects of Zn supplement against I/R injury. Data of this review have been collected from the scientific articles published in databas...
Source: Biological Trace Element Research - Category: Biology Authors: Tags: Biol Trace Elem Res Source Type: research
Authors: Shahid R Abstract Young adults are a key part of any society and the psychosocial and economic burden of any chronic or devastating disease in this particular group has significant consequences and impacts negatively on the development of the society as a whole. Although stroke in this age group is relatively rare, its consequences, in terms of lifelong dependence and disability, are substantial. Therefore, it is important to address this issue. In this retrospective epidemiological study, we analyzed the medical records of young patients (aged 18- 45 years) with a diagnosis of stroke during the study peri...
Source: Functional Neurology - Category: Neurology Tags: Funct Neurol Source Type: research
This study aimed to investigate the influence of genetic variants on the levels of fetal hemoglobin (Hb F) and biochemical parameters related with chronic hemolysis, as well as on ischemic stroke risk, in ninety-one unrelated SCA patients, children of sub-Saharan progenitors. Our results show that a higher Hb F level has an inverse relationship with the occurrence of stroke, since the group of patients who suffered stroke presents a significantly lower mean Hb F level (5.34  ± 4.57% versus 9.36 ± 6.48%;p = 0.024). Furthermore, the co-inheritance of alpha-thalassemia imp...
Source: Annals of Hematology - Category: Hematology Source Type: research
More News: African Health | Brain | Ischemic Stroke | Neurology | Sickle Cell Anemia | Stroke