keyword
MENU ▼
Read by QxMD icon Read
search

stroke genetics

keyword
https://www.readbyqxmd.com/read/28343295/identification-of-sphingosine-1-phosphate-receptor-subtype-1-s1p1-as-a-pathogenic-factor-in-transient-focal-cerebral-ischemia
#1
Bhakta Prasad Gaire, Chi-Ho Lee, Arjun Sapkota, Sang Yeul Lee, Jerold Chun, Hee Jun Cho, Tae-Gyu Nam, Ji Woong Choi
Medically relevant roles of receptor-mediated sphingosine 1-phosphate (S1P) signaling have become a successful or promising target for multiple sclerosis or cerebral ischemia. Animal-based proof-of-concept validation for the latter is particularly through the neuroprotective efficacy of FTY720, a non-selective S1P receptor modulator, presumably via activation of S1P1. In spite of a clear link between S1P signaling and cerebral ischemia, it remains unknown whether the role of S1P1 is pathogenic or neuroprotective...
March 25, 2017: Molecular Neurobiology
https://www.readbyqxmd.com/read/28338862/family-aggregation-of-cardiovascular-disease-mortality-a-register-based-prospective-study-of-pooled-nordic-twin-cohorts
#2
Karri Silventoinen, Jacob Hjelmborg, Sören Möller, Samuli Ripatti, Axel Skythe, Emmi Tikkanen, Nancy L Pedersen, Patrik Ke Magnusson, Kaare Christensen, Jaakko Kaprio
Background: Familial factors play an important role in the variation of risk factors of cardiovascular diseases (CVD), but less is known about how they affect the risk of death from CVD. We estimated familial aggregation of CVD mortality for twins offering the maximum level of risk due to genetic and other familial factors. Methods: Altogether, 132 771 twin individuals, including 65 196 complete pairs from Denmark, Finland and Sweden born in 1958 or earlier, participated in this study...
February 28, 2017: International Journal of Epidemiology
https://www.readbyqxmd.com/read/28337931/utilizing-nutritional-genomics-to-tailor-diets-for-the-prevention-of-cardiovascular-disease-a-guide-for-upcoming-studies-and-implementations
#3
Dolores Corella, Oscar Coltell, George Mattingley, José V Sorlí, Jose M Ordovas
Personalized diets based on an individual's genome to optimize the success of dietary intervention and reduce genetic cardiovascular disease (CVD) risk, is one of the challenges most frequently discussed in the scientific community. Areas covered: The authors gathered literature-based evidence on nutritional genomics and CVD phenotypes, our own results and research experience to provide a critical overview of the current situation of using nutritional genomics to tailor diets for CVD prevention and to propose guidelines for future studies and implementations...
March 24, 2017: Expert Review of Molecular Diagnostics
https://www.readbyqxmd.com/read/28322502/mystery-solved-our-son-s-autism-and-extreme-self-injury-is-genetic-and-treatable
#4
Tanja Bartel
Our 17-year-old autistic son Jake is declining at the same rate his peers are developing. He has the pimples, the sudden height, and the hormones. But the right side of his body slumps like someone who has had a stroke. Once right handed, he now uses only his left hand. At 15, he knocked his eyes off their parallel tracks by slamming his temple into the corner of a wooden post. One eye looks straight ahead while the other looks up and to the side. Both optic nerves are damaged. All the damage is self-inflicted...
March 21, 2017: American Journal of Medical Genetics. Part A
https://www.readbyqxmd.com/read/28320941/potent-neuroprotection-after-stroke-afforded-by-a-double-knot-spider-venom-peptide-that-inhibits-acid-sensing-ion-channel-1a
#5
Irène R Chassagnon, Claudia A McCarthy, Yanni K-Y Chin, Sandy S Pineda, Angelo Keramidas, Mehdi Mobli, Vi Pham, T Michael De Silva, Joseph W Lynch, Robert E Widdop, Lachlan D Rash, Glenn F King
Stroke is the second-leading cause of death worldwide, yet there are no drugs available to protect the brain from stroke-induced neuronal injury. Acid-sensing ion channel 1a (ASIC1a) is the primary acid sensor in mammalian brain and a key mediator of acidosis-induced neuronal damage following cerebral ischemia. Genetic ablation and selective pharmacologic inhibition of ASIC1a reduces neuronal death following ischemic stroke in rodents. Here, we demonstrate that Hi1a, a disulfide-rich spider venom peptide, is highly neuroprotective in a focal model of ischemic stroke...
March 20, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28317214/characterization-of-blood-flow-through-intrapulmonary-arteriovenous-anastomoses-and-patent-foramen-ovale-at-rest-and-during-exercise-in-stroke-and-transient-ischemic-attack-patients
#6
Rinaldo Romac, Otto Barak, Duska Glavas, Zora Susilovic Grabovac, Petar Lozo, Igor Roje, Kresimir Caljkusic, Irena Drmic-Hofman, James T Davis, Zeljko Dujic, Andrew T Lovering
OBJECTIVES: We determined whether stroke and/or TIA subjects have exercise-induced blood flow through intrapulmonary arteriovenous anastomoses (QIPAVA ) and/or patent foramen ovale (QPFO ) and a genetic predisposition for ischemic stroke. METHODS: Twenty-eight stroke and/or TIA subjects (33-63 years old) underwent transthoracic saline contrast echocardiography concomitant with transcranial Doppler to detect QIPAVA and QPFO at rest and during supine exercise with and without breathing 100% O2 ...
March 19, 2017: Echocardiography
https://www.readbyqxmd.com/read/28314594/brain-ischemia-suppresses-immunity-in-the-periphery-and-brain-via-different-neurogenic-innervations
#7
Qiang Liu, Wei-Na Jin, Yaou Liu, Kaibin Shi, Haoran Sun, Fang Zhang, Chao Zhang, Rayna J Gonzales, Kevin N Sheth, Antonio La Cava, Fu-Dong Shi
Brain ischemia inhibits immune function systemically, with resulting infectious complications. Whether in stroke different immune alterations occur in brain and periphery and whether analogous mechanisms operate in these compartments remains unclear. Here we show that in patients with ischemic stroke and in mice subjected to middle cerebral artery occlusion, natural killer (NK) cells display remarkably distinct temporal and transcriptome profiles in the brain as compared to the periphery. The activation of catecholaminergic and hypothalamic-pituitary-adrenal axis leads to splenic atrophy and contraction of NK cell numbers in the periphery through a modulated expression of SOCS3, whereas cholinergic innervation-mediated suppression of NK cell responses in the brain involves RUNX3...
March 21, 2017: Immunity
https://www.readbyqxmd.com/read/28302914/new-insights-into-mechanisms-of-small-vessel-disease-stroke-from-genetics
#8
REVIEW
Rhea Tan, Matthew Traylor, Loes Rutten-Jacobs, Hugh Markus
Cerebral small vessel disease (SVD) is a common cause of lacunar strokes, vascular cognitive impairment (VCI) and vascular dementia. SVD is thought to result in reduced cerebral blood flow, impaired cerebral autoregulation and increased blood-brain barrier (BBB) permeability. However, the molecular mechanisms underlying SVD are incompletely understood. Recent studies in monogenic forms of SVD, such as cerebral autosomal dominant arteriopathy with subcortical infarcts and leukoencephalopathy (CADASIL), and 'sporadic' SVD have shed light on possible disease mechanisms in SVD...
April 1, 2017: Clinical Science (1979-)
https://www.readbyqxmd.com/read/28302552/exploring-overlaps-between-the-genomic-and-environmental-determinants-of-lvh-and-stroke-a-multicenter-study-in-west-africa
#9
Abiodun M Adeoye, Bruce Ovbiagele, Philip Kolo, Lambert Appiah, Akinyemi Aje, Oladimeji Adebayo, Fred Sarfo, Joshua Akinyemi, Gregory Adekunle, Francis Agyekum, Vincent Shidali, Okechukwu Ogah, Dan Lackland, Mulugeta Gebregziabher, Donna Arnett, Hemant K Tiwari, Rufus Akinyemi, Ojo Olakanmi Olagoke, Ayodipupo Sikiru Oguntade, Taiwo Olunuga, Kelechi Uwanruochi, Carolyn Jenkins, Patrick Adadey, Henry Iheonye, Lukman Owolabi, Reginald Obiako, Samuel Akinjopo, Kevin Armstrong, Albert Akpalu, Adekunle Fakunle, Raelle Saulson, Mayowa Aridegbe, Paul Olowoyo, Godwin Osaigbovo, Josephine Akpalu, Bimbo Fawale, Philip Adebayo, Oyedunni Arulogun, Philip Ibinaiye, Atinuke Agunloye, Naser Ishaq, Kolawole Wahab, Onoja Akpa, Omisore Adeleye, Andrew Bock-Oruma, Godwin Ogbole, Sylvia Melikam, Joseph Yaria, Luqman Ogunjimi, Abdul Salaam, Taofiki Sunmonu, Akintomiwa Makanjuola, Temitope Farombi, Ruth Laryea, Ezinne Uvere, Salaam Kehinde, Innocent Chukwuonye, Paschal Azuh, Morenikeji Komolafe, Adeseye Akintunde, Olugbo Obiabo, Olusegun Areo, Issa Kehinde, Adeniyi G Amusa, Mayowa Owolabi
BACKGROUND: Whether left ventricular hypertrophy (LVH) is determined by similar genomic and environmental risk factors with stroke, or is simply an intermediate stroke marker, is unknown. OBJECTIVES: We present a research plan and preliminary findings to explore the overlap in the genomic and environmental determinants of LVH and stroke among Africans participating in the SIREN (Stroke Investigative Research and Education Network) study. METHODS: SIREN is a transnational, multicenter study involving acute stroke patients and age-, ethnicity-, and sex-matched control subjects recruited from 9 sites in Ghana and Nigeria...
March 13, 2017: Global Heart
https://www.readbyqxmd.com/read/28293042/polymorphisms-of-the-lipoprotein-lipase-gene-as-genetic-markers-for-stroke-in-colombian-population-a-case-control-study
#10
Leydi Carolina Velásquez Pereira, Clara Inés Vargas Castellanos, Federico Arturo Silva Sieger
OBJECTIVE: To analyze if there is an association between the presence of polymorphisms in the LPL gene (rs320, rs285 and rs328) with development of acute ischemic stroke in Colombian population. METHODS: In a case control design, 133 acute ischemic stroke patients (clinical diagnosis and x-ray CT) and 269 subjects without stroke as controls were studied. PCR -RFLP technique was used to detect rs320, rs285 and rs328 polymorphisms in the LPL gene. RESULTS: In the present research was not found any association between any of the LPL gene polymorphism and acute ischemic stroke in the population studied; the allele and genotypic frequencies of the studied polymorphisms were similar in cases and controls and followed the Hardy-Weinberg equilibrium...
December 30, 2016: Colombia Médica: CM
https://www.readbyqxmd.com/read/28291539/the-role-of-brain-derived-neurotrophic-factor-and-its-single-nucleotide-polymorphisms-in-stroke-patients
#11
REVIEW
Dariusz Kotlęga, Barbara Peda, Agnieszka Zembroń-Łacny, Monika Gołąb-Janowska, Przemysław Nowacki
Stroke is the main cause of motoric and neuropsychological disability in adults. Recent advances in research into the role of the brain-derived neurotrophic factor in neuroplasticity, neuroprotection and neurogenesis might provide important information for the development of new poststroke-rehabilitation strategies. It plays a role as a mediator in motor learning and rehabilitation after stroke. Concentrations of BDNF are lower in acute ischemic-stroke patients compared to controls. Lower levels of BDNF are correlated with an increased risk of stroke, worse functional outcomes and higher mortality...
March 6, 2017: Neurologia i Neurochirurgia Polska
https://www.readbyqxmd.com/read/28290785/-genetic-risk-factors-of-macrovascular-complications-in-patients-with-type-2-diabetes
#12
A A Bystrova, A S Ulitina, M V Kim, S A Skoryukova, V V Miroshnikova, A A Panteleeva, N A Korelskaya, Zhu He Zhu He, M A Nikolaev, S N Pchelina, E I Baranova, E I Krasilnikova
High risk of macrovascular complications in patients with type 2 diabetes mellitus (T2DM) is caused by insulin resistance and atherogenic dyslipidemia that may be genetically determined. The aim of this study was to assess the association of polymorphic genetic variants APOA5 (S19W/rs3135506), CETP (Taq1B/rs708272), PON1 (Q192R /rs662) and PPARG (Pro12Ala /rs1801282) with T2DM and macrovascular complications in patients with T2DM resident in Northwestern Russia. We examined 386 patients with T2DM and 199 healthy controls...
February 2017: Kardiologiia
https://www.readbyqxmd.com/read/28289923/tocilizumab-reverses-cerebral-vasculopathy-in-a-patient-with-homozygous-samhd1-mutation
#13
REVIEW
Michael Henrickson, Heng Wang
An auto-inflammatory syndrome consequent to SAMHD1 mutations involves cerebral vasculopathy characterized by multifocal stenosis and aneurysms within large arteries, moyamoya, chronic ischemia, and early-onset strokes (SAMS). While this condition involves the innate immune system, additional clinical features mimic systemic lupus erythematosus. Mutations in this gene can also cause a subset of the rare genetic condition Aicardi-Goutières syndrome. To date, no established therapy successfully prevents disease progression...
March 13, 2017: Clinical Rheumatology
https://www.readbyqxmd.com/read/28289237/impact-of-glycemic-control-on-efficacy-of-clopidogrel-in-transient-ischemic-attack-or-minor-stroke-patients-with-cyp2c19-genetic-variants
#14
Yi Lin, Anxin Wang, Jiejie Li, Jinxi Lin, David Wang, Xia Meng, Lixian Ou, Weiqi Chen, Xingquan Zhao, Liping Liu, Yilong Wang, Yongjun Wang
BACKGROUND AND PURPOSE: Dysglycemia may influence the predictive value of CYP2C19 loss-of-function allele for clinical efficacy of antiplatelet drug, but the role of glycated albumin (GA) remains unclear in patients with stroke on antiplatelet drugs. METHODS: The CHANCE trial (Clopidogrel in High-Risk Patients With Acute Nondisabling Cerebrovascular Events) included 2933 patients who had GA levels and CYP2C19 genotyping. Cox proportional hazards model was used to assess the interaction between CYP2C19 loss-of-function allele (*2, *3) carrier status and the effect of antiplatelet therapy based on their GA levels...
March 13, 2017: Stroke; a Journal of Cerebral Circulation
https://www.readbyqxmd.com/read/28283957/migraine-and-stroke-what-s-the-link-what-to-do
#15
REVIEW
Anna Gryglas, Robert Smigiel
Migraine and stroke are common, disabling neurologic disorders, with a high socioeconomic burden. A link between them has been proposed years ago, and various theories have been proposed to explain this bidirectional relation. However, the precise causes remain unclear. We briefly summarize existing hypotheses of this correlation seeking for recommendations for stroke prevention in migraineurs, if any exist. Among the strongest suggested theories of migraine-stroke association are cortical spreading depression, endovascular dysfunction, vasoconstriction, neurogenic inflammation, hypercoagulability, increased prevalence of vascular risk factors, shared genetic defects, cervical artery dissection, and patent foramen ovale...
March 2017: Current Neurology and Neuroscience Reports
https://www.readbyqxmd.com/read/28283275/kidney-involvement-in-melas-syndrome-description-of-2-cases
#16
Pau Alcubilla-Prats, Manel Solé, Albert Botey, Josep Maria Grau, Glòria Garrabou, Esteban Poch
INTRODUCTION: MELAS syndrome -myopathy, encephalopathy, lactic acidosis and stroke-like episodes- is a maternally-inherited mitochondrial cytopathy related to several mitochondrial DNA mutations, with the A3243G mutation in tRNA(Leu) gene being the most frequent of them. PATIENTS AND METHODS: Apart from its typical symptomatology, patients usually exhibit a maternally-inherited history of neurosensory deafness and insulin-dependent type 2 diabetes mellitus (T2DM)...
March 7, 2017: Medicina Clínica
https://www.readbyqxmd.com/read/28282560/genome-wide-meta-analysis-identifies-novel-loci-of-plaque-burden-in-carotid-artery
#17
Janne Pott, Ralph Burkhardt, Frank Beutner, Katrin Horn, Andrej Teren, Holger Kirsten, Lesca M Holdt, Gerhard Schuler, Daniel Teupser, Markus Loeffler, Joachim Thiery, Markus Scholz
BACKGROUND AND AIMS: Carotid artery plaque is an established marker of subclinical atherosclerosis and common patho-mechanisms with coronary artery disease (CAD) are hypothesized. We aimed to identify genetic variants associated with carotid plaque and to examine the potential shared genetic basis with CAD. METHODS: After investigating the reliability of plaque detection, we performed a genome-wide meta-association study in two independent cohorts (LIFE-Adult, n = 4037 and LIFE-Heart, n = 3152) for carotid plaque score (PS), defined as the sum of the plaque load of common carotid artery and carotid bulb...
February 24, 2017: Atherosclerosis
https://www.readbyqxmd.com/read/28281108/recognizing-cadasil-a-secondary-cause-of-migraine-with-aura
#18
REVIEW
John Glenn Burkett, Carrie Dougherty
PURPOSE OF REVIEW: CADASIL (cerebral autosomal dominant arteriopathy with subcortical infarcts and leukoencephalopathy) is an important disease to consider in the differential diagnosis of migraine with aura. This review examines current literature regarding migraine in CADASIL, as well as diagnostic and treatment modalities. RECENT FINDINGS: Recent studies have shown that smoking is a modifiable risk factor for progression of CADASIL (Chabriat et al. in Stroke 47:4-11, 2015)...
April 2017: Current Pain and Headache Reports
https://www.readbyqxmd.com/read/28280138/sickle-cell-trait-and-the-risk-of-esrd-in-blacks
#19
Rakhi P Naik, Marguerite R Irvin, Suzanne Judd, Orlando M Gutiérrez, Neil A Zakai, Vimal K Derebail, Carmen Peralta, Michael R Lewis, Degui Zhi, Donna Arnett, William McClellan, James G Wilson, Alexander P Reiner, Jeffrey B Kopp, Cheryl A Winkler, Mary Cushman
Blacks, compared with whites, have an increased risk of progression to end-stage renal disease (ESRD). Emerging evidence suggests that, in addition to APOL1 high-risk genotypes, hemoglobin variants, including sickle cell trait (SCT) and hemoglobin C trait, have a role in kidney disease in blacks. However, the association between these hemoglobin traits and ESRD remains unknown. In a large population-based cohort, the REasons for Geographic and Racial Differences in Stroke (REGARDS) study, we evaluated 9909 self-reported blacks (739 with SCT and 243 with hemoglobin C trait)...
March 9, 2017: Journal of the American Society of Nephrology: JASN
https://www.readbyqxmd.com/read/28277461/imaging-brain-collaterals-quantification-scoring-and-potential-significance
#20
Scott B Raymond, Pamela W Schaefer
Leptomeningeal collaterals provide the primary source of perfusion to ischemic brain tissue following the onset of acute ischemic stroke and are becoming an important imaging biomarker for stroke therapy triage. Collateral circulation is predictive of infarct growth, end infarct volume, and response to endovascular therapy. The strength of the collateral circulation varies among patients and is partially dependent on genetic and modifiable risk factors. Collateral circulation may be assessed by standard angiographic techniques, including digital subtraction angiography, computed tomography and magnetic resonance (MR) angiography, as well as a growing array of advanced MR techniques including arterial spin labeling and dynamic MR angiography...
March 8, 2017: Topics in Magnetic Resonance Imaging: TMRI
keyword
keyword
89627
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"