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Homocysteine and stroke

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https://www.readbyqxmd.com/read/29330520/association-of-homocysteine-with-aysmptomatic-intracranial-and-extracranial-arterial-stenosis-in-hypertension-patients
#1
Yan Wang, Jin Zhang, Yuesheng Qian, Xiaofeng Tang, Huawei Ling, Kemin Chen, Yan Li, Pingjin Gao, Dingliang Zhu
Elevated plasma homocysteine (Hcy) is suggested as an independent risk factor for stroke. We aimed to investigate the association of Hcy concentration with intracranial atherosclerosis (ICAS) and extracranial AS (ECAS) in hypertensive patients without stroke in Chinese population and to explore modified effect of methylenetetrahydrofolate reductase (MTHFR) C677T on their relationship. The stenosis of intracranial and extracranial arteries were evaluated in a total of 929 subjects through computerized tomographic angiography (CTA) from aortic arch to the skull base...
January 12, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29325799/elevated-circulating-homocysteine-and-high-sensitivity-c-reactive-protein-jointly-predicts-post-stroke-depression-among-chinese-patients-with-acute-ischemic-stroke
#2
Jieyun Yin, Chongke Zhong, Zhengbao Zhu, Xiaoqing Bu, Tan Xu, Libing Guo, Xuemei Wang, Jintao Zhang, Yong Cui, Dong Li, Jianhui Zhang, Zhong Ju, Chung-Shiuan Chen, Jing Chen, Yonghong Zhang, Jiang He
BACKGROUND: Homocysteine (HCY) and high sensitivity C reactive protein (hs-CRP) were suggested to be involved in post-stroke depression (PSD), which is a frequent mood disorder after stroke. However, the combined effect of HCY and hs-CRP on PSD remains unclear. METHODS: A total of 598 acute ischemic stroke patients from 7 of 26 centers participating in the China Antihypertensive Trial in Acute Ischemic Stroke with HCY or hs-CRP measurements were included in this analysis...
January 8, 2018: Clinica Chimica Acta; International Journal of Clinical Chemistry
https://www.readbyqxmd.com/read/29321517/genome-wide-association-study-of-homocysteine-in-african-americans-from-the-jackson-heart-study-the-multi-ethnic-study-of-atherosclerosis-and-the-coronary-artery-risk-in-young-adults-study
#3
Laura M Raffield, Jaclyn Ellis, Nels C Olson, Qing Duan, Jin Li, Peter Durda, Nathan Pankratz, Brendan J Keating, Christina L Wassel, Mary Cushman, James G Wilson, Myron D Gross, Russell P Tracy, Stephen S Rich, Alex P Reiner, Yun Li, Monte S Willis, Ethan M Lange, Leslie A Lange
Homocysteine (Hcy) is a heritable biomarker for CVD, peripheral artery disease, stroke, and dementia. Little is known about genetic associations with Hcy in individuals of African ancestry. We performed a genome-wide association study for Hcy in 4927 AAs from the Jackson Heart Study (JHS), the Multi-Ethnic Study of Atherosclerosis (MESA), and the Coronary Artery Risk in Young Adults (CARDIA) study. Analyses were stratified by sex and results were meta-analyzed within and across sex. In the sex-combined meta-analysis, we observed genome-wide significant evidence (pā€‰<ā€‰5...
January 10, 2018: Journal of Human Genetics
https://www.readbyqxmd.com/read/29279830/homocystinuria-with-stroke-and-positive-familial-history
#4
Ali Mazaheri, Neda Mostofizadeh, Mahin Hashemipour
Homocystinuria is the second most common treatable aminoacidopathy. Clinically, affected patients present with eye, skeleton, central nervous system, and most importantly, vascular system abnormalities. This autosomal recessive disorder leads to accumulation of homocysteine and its metabolites in the blood and urine. In this report, we present a case with clinical and biochemical findings of homocystinuria with stroke and a positive familial history of the disease in her brother. A 4-year-old girl was admitted to pediatric emergency ward because of acute onset of right hemiparesis and subsequent generalized tonic-clonic seizures...
2017: Advanced Biomedical Research
https://www.readbyqxmd.com/read/29273593/novel-susceptibility-loci-for-moyamoya-disease-revealed-by-a-genome-wide-association-study
#5
Lian Duan, Ling Wei, Yanghua Tian, Zhengshan Zhang, Panpan Hu, Qiang Wei, Sugang Liu, Jun Zhang, Yuyang Wang, Desheng Li, Weizhong Yang, Rui Zong, Peng Xian, Cong Han, Xiangyang Bao, Feng Zhao, Jie Feng, Wei Liu, Wuchun Cao, Guoping Zhou, Chunyan Zhu, Fengqiong Yu, Weimin Yang, Yu Meng, Jingye Wang, Xianwen Chen, Yu Wang, Bing Shen, Bing Zhao, Jinghai Wan, Fengyu Zhang, Gang Zhao, Aimin Xu, Xuejun Zhang, Jianjun Liu, Xianbo Zuo, Kai Wang
BACKGROUND AND PURPOSE: Moyamoya disease (MMD) is a rare cerebral vasculopathy characterized by bilateral internal carotid artery stenosis and often leads to stroke in children or young adults. Although familial inheritance is well recognized, the genetic basis of MMD remains poorly understood. METHODS: A 2-stage genome-wide association study was conducted involving 1492 cases and 5084 controls. In the discovery stage, logistic regression was used to test associations, and imputation was conducted based on genotyped single-nucleotide polymorphisms (SNPs)...
January 2018: Stroke; a Journal of Cerebral Circulation
https://www.readbyqxmd.com/read/29208848/assessment-of-homocysteine-as-a-diagnostic-and-early-prognostic-biomarker-for-patients-with-acute-lacunar-infarction
#6
Huimin Fan, Shuna Yang, Yue Li, Jiangmei Yin, Wei Qin, Lei Yang, Junliang Yuan, Wenli Hu
BACKGROUND: Although increasing evidence has demonstrated that elevated homocysteine (Hcy) levels may be an important contributor for the development of cerebral infarction, rare studies focused on its diagnostic and early prognostic roles in acute lacunar infarction. METHODS: A total of 197 patients with acute lacunar infarction and 192 to form the control group were prospectively recruited between January 2013 and February 2017. Early neurological deterioration was defined as an increase of ā‰„2 points in National Institutes of Health Stroke Scale or the decrease in Barthel index (BI) score at discharge...
November 29, 2017: European Neurology
https://www.readbyqxmd.com/read/29203427/the-association-between-plasma-homocysteine-and-ambulatory-blood-pressure-variability-in-patients-with-untreated-hypertension
#7
Suhua Li, Jieming Zhu, Lin Wu, Long Peng, Yanting Luo, Yunyue Zhao, Ruimin Dong, Lin Chen, Xixiang Tang, Jinlai Liu
BACKGROUND: Both homocysteine (Hcy) and blood pressure variability (BPV) are independent predictors of stroke, however, their relationship is rarely evaluated before. This study aimed to investigate the association Hcy and ambulatory BPV in subjects with untreated primary hypertension. METHODS: A total of 252 eligible patients were recruited. Plasma Hcy was measured and 24-h ambulatory blood pressure monitoring was performed for each subject. The systolic and diastolic BPV values were calculated as the SD of individual blood pressure values during 24h, daytime and nighttime, and then stratified by the tertiles of Hcy concentration (T1 to T3)...
December 2, 2017: Clinica Chimica Acta; International Journal of Clinical Chemistry
https://www.readbyqxmd.com/read/29201182/the-efficacy-of-gastrodin-in-combination-with-folate-and-vitamin-b12-on-patients-with-epilepsy-after-stroke-and-its-effect-on-hmgb-1-il-2-and-il-6-serum-levels
#8
Hao Zhou, Nuan Wang, Lei Xu, Hongli Huang, Chunyu Yu
This study evaluated the efficacy of gastrodin in combination with folate (FOL) and vitamin-B12 (V-B12) on patients with epilepsy after stroke (EAS) and its effect on high-mobility group protein B1 (HMGB-1), interleukin-1 (IL-1), and IL-6 serum levels. The clinical data of 92 EAS patients admitted for treatment between April, 2014 and March, 2016 were collected. These patients were randomly divided into control and observation groups (n=46 each) using computer software. Patients in the control group were administered only regular antiepileptic drugs, whereas observation group patients also received a combination of gastrodin, FOL and V-B12...
November 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29182708/b-vitamin-therapy-for-kidney-transplant-recipients-lowers-homocysteine-and-improves-selective-cognitive-outcomes-in-the-randomized-favorit-ancillary-cognitive-trial
#9
T M Scott, G Rogers, D E Weiner, K Livingston, J Selhub, P F Jacques, I H Rosenberg, A M Troen
BACKGROUND: Objectives: Elevated plasma total homocysteine (tHcy) is associated with increased risk of cardiovascular disease, stroke and dementia. Results of clinical trials using B-vitamins to reduce the cognitive risks attributed to tHcy have been inconsistent. The high prevalence of both hyperhomocysteinemia and cognitive impairment among kidney transplant recipients makes them an important population in which to evaluate the effect of lowering homocysteine on cognitive function. We therefore evaluated whether B-vitamin therapy to lower tHcy would prevent cognitive-decline in a cohort of stable kidney transplant recipients...
2017: Journal of Prevention of Alzheimer's Disease
https://www.readbyqxmd.com/read/29159396/association-of-nonalcoholic-fatty-liver-disease-with-lower-brain-volume-in-healthy-middle-aged-adults-in-the-framingham-study
#10
Galit Weinstein, Shira Zelber-Sagi, Sarah R Preis, Alexa S Beiser, Charles DeCarli, Elizabeth K Speliotes, Claudia L Satizabal, Ramachandran S Vasan, Sudha Seshadri
Importance: Nonalcoholic fatty liver disease (NAFLD) is a common condition that is most often asymptomatic. It is associated with metabolic syndrome, incident diabetes, carotid atherosclerosis, and endothelial dysfunction, conditions that in turn are strongly linked with brain damage and cognitive impairment. However, it is not known whether NAFLD is associated with structural brain measures in humans. Objective: To assess the association between prevalent NAFLD and brain magnetic resonance imaging (MRI) measures...
November 20, 2017: JAMA Neurology
https://www.readbyqxmd.com/read/29118917/influence-of-renal-function-on-the-association-between-homocysteine-level-and-risk-of-ischemic-stroke
#11
Yao Cheng, Fan-Zhen Kong, Xiao-Feng Dong, Qin-Rong Xu, Qian Gui, Wei Wang, Hong-Xuan Feng, Wei-Feng Luo, Zong-En Gao, Guan-Hui Wu
We examined whether the association between total homocysteine (tHCY) and risk of ischemic stroke (IS) varies depending on renal function to gain insight into why tHCY-lowering vitamins do not reduce the incidence of cardiovascular disease in clinical trials. We analyzed data from 542 IS patients with large artery atherosclerosis (LAA) or small artery occlusion (SAO) after stratification by estimated glomerular filtration rate (eGFR) to evaluate renal function. We found that tHCY level was positively associated with the occurrence of IS in both LAA (OR: 1...
2017: American Journal of Translational Research
https://www.readbyqxmd.com/read/29118764/folic-acid-and-homocysteine-in-chronic-kidney-disease-and-cardiovascular-disease-progression-which-comes-first
#12
REVIEW
Giuseppe Cianciolo, Antonio De Pascalis, Luca Di Lullo, Claudio Ronco, Chiara Zannini, Gaetano La Manna
Background: Hyperhomocysteinemia (Hhcy) occurs in about 85% of chronic kidney disease (CKD) patients because of impaired renal metabolism and reduced renal excretion. Folic acid (FA), the synthetic form of vitamin B9, is critical in the conversion of homocysteine (Hcy) to methionine. If there is not enough intake of FA, there is not enough conversion, and Hcy levels are raised. Summary: Hhcy is regarded as an independent predictor of cardiovascular morbidity and mortality in end-stage renal disease...
October 2017: Cardiorenal Medicine
https://www.readbyqxmd.com/read/29113388/association-of-mir-146a-mir-149-mir-196a2-mir-499-gene-polymorphisms-with-ischemic-stroke-in-a-chinese-people
#13
Hong-Cheng Luo, Qi-Sheng Luo, Chun-Fang Wang, Ming Lei, Bei-Lin Li, Ye-Sheng Wei
This study aimed to investigate genetic polymorphisms of miR-146a, miR-149, miR-196a2, and miR-499 and genetic susceptibility of ischemic stroke in the population of Guangxi in China. A case-control study was used to investigate miRNAs genetic polymorphisms in 298 patients with ischemic stroke and 303 healthy controls. Single-base extension polymerase chain reaction genotyping principle was used to detect genetic polymorphisms of miRNAs,and the relationship of genotype in each group and blood lipid was compared and analyzed...
October 6, 2017: Oncotarget
https://www.readbyqxmd.com/read/29111029/hematoma-volume-is-a-predictive-factor-of-disturbed-autoregulation-after-spontaneous-intracerebral-hemorrhage
#14
Hongyin Ma, Zhen-Ni Guo, Xin Sun, Jia Liu, Shan Lv, Lu Zhao, Weitong Guo, Hang Jin, Yi Yang
BACKGROUND: Dynamic cerebral autoregulation (dCA) is probably disturbed after spontaneous intracerebral hemorrhage (ICH) and could be an independent predictor of clinical outcome. Clinical determinants of dCA status after ICH need to be further elucidated. METHODS: We finally enrolled 53 patients diagnosed with supratentorial ICH within 6days from onset. DCA was assessed 4-6days after ICH onset by monitoring middle cerebral artery blood flow velocities and simultaneous arterial blood pressure continuously, utilizing transcranial Doppler combined with a servo-controlled finger plethysmograph...
November 15, 2017: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/29078842/folic-acid-supplementation-for-stroke-prevention-in-patients-with-cardiovascular-disease
#15
REVIEW
Tao Tian, Kun-Qi Yang, Jin-Gang Cui, Lan-Lan Zhou, Xian-Liang Zhou
BACKGROUND: Controversy remains regarding the efficacy of folic acid supplementation in reducing the risk of stroke. This study aimed to evaluate the effect of folic acid supplementation on stroke prevention in patients with cardiovascular disease (CVD). MATERIALS AND METHODS: We searched the PubMed, EMBASE and Cochrane Library databases through October 2016 to identify randomized clinical trials of folic acid supplementation to prevent stroke in patients with CVD...
October 2017: American Journal of the Medical Sciences
https://www.readbyqxmd.com/read/29063076/restless-legs-syndrome-secondary-to-pontine-infarction-clinical-analysis-of-five-cases
#16
Hou-Zhen Tuo, Ze-Long Tian, Yi-Nong Cui, Xiao-Yang Ma, Chun-Ling Xu, Hong-Yan Bi, Li-Yan Zhang, Yong-Bo Zhang, Wei-Dong Le, William Ondo
OBJECTIVE: Pontine infarction is a common type of stroke in the cerebral deep structures, resulting from occlusion of small penetrating arteries, may manifest as hemi-paralysis, hemi-sensory deficit, ataxia, vertigo, and bulbar dysfunction, but patients presenting with restless legs syndrome (RLS) are extremely rare. Herein, we reported five cases with RLS as a major manifestation of pontine infarction. METHODS: Five cases of pontine infarction related RLS were collected from July 2013 to February 2016...
September 2017: Chronic Diseases and Translational Medicine
https://www.readbyqxmd.com/read/29050786/homocysteine-in-non-valvular-atrial-fibrillation-role-and-clinical-implications
#17
REVIEW
Yan Yao, Mei-Sheng Shang, Jian-Zeng Dong, Chang-Sheng Ma
Atrial fibrillation (AF), the most common sustained arrhythmia, is associated with a series of adverse complications that cause so-called AF socioeconomic burden. Apart from the classical risk factors, it seems to be novel factors that increase the risk of AF and AF-related stroke. Recently, more and more evidence has well documented the close relationships between homocysteine (Hcy) and AF. As a well-known marker for pro-oxidation and pro-inflammation, Hcy plays an important role in a number of vascular diseases having strong association with AF...
October 16, 2017: Clinica Chimica Acta; International Journal of Clinical Chemistry
https://www.readbyqxmd.com/read/29041003/depression-in-the-context-of-medical-disorders-new-pharmacological-pathways-revisited
#18
Undine E Lang, Marc Walter
The depressive state has been characterised as one of elevated inflammation, changed cardiovascular parameters and a deranged metabolic situation all of which holds promise for a better understanding and handling of treatment-resistance in affective disorders as well as for future developments in treatment algorithms. In this context several biomarkers are differentially regulated by antidepressant treatment and connected to metabolic, inflammatory, cardiovascular and apoptotic components of the pathophysiology, i...
October 17, 2017: Neuro-Signals
https://www.readbyqxmd.com/read/29032752/association-between-apolipoproteins-ai-and-b-and-ultrasound-indicators-of-carotid-atherosclerosis
#19
Zeljko Zivanovic, Ivana Divjak, Mirjana Jovicevic, Tamara Rabi-Zikic, Biljana Radovanovic, Svetlana Ruzicka-Kaloci, Djordje Stevan Popovic, Edita Stokic, Ksenija Gebauer-Bukurov, Katarina Zivanovic-Vujcic, Petar Slankamenac
BACKGROUND: Apolipoproteins A-I and B (apoA-I and apoB) may be better indicators of the risk of cardiovascular and cerebrovascular diseases than conventional risk factors (RFs). The onset of ischemic stroke (IS) may be preceded by the development of atherosclerotic changes in carotid arteries, which can be detected by ultrasound. Only a certain % of patients with IS have an (underlying) carotid etiology. OBJECTIVE: The aim of our study was to determine the association between ultrasound indicators of carotid atherosclerosis and the presence of apolipoproteins and other biomarkers in patients with IS...
October 10, 2017: Current Vascular Pharmacology
https://www.readbyqxmd.com/read/29030456/association-between-percent-decline-in-serum-total-homocysteine-and-risk-of-first-stroke
#20
RANDOMIZED CONTROLLED TRIAL
Xiao Huang, Youbao Li, Ping Li, Jianping Li, Huihui Bao, Yan Zhang, Binyan Wang, Ningling Sun, Jiguang Wang, Mingli He, Delu Yin, Genfu Tang, Yundai Chen, Yiming Cui, Yining Huang, Fan Fan Hou, Xianhui Qin, Yong Huo, Xiaoshu Cheng
OBJECTIVE: To examine whether a change in serum total homocysteine (tHcy) levels is associated with first stroke risk in a post hoc analysis of the China Stroke Primary Prevention Trial (CSPPT). METHODS: We analyzed 16,867 participants of the CSPPT with tHcy measurements at both baseline and exit visits. The primary outcome was first stroke. The secondary outcome was a composite of cardiovascular events consisting of cardiovascular death, myocardial infarction, and stroke...
November 14, 2017: Neurology
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