Association of 5-lipoxygenase activating protein gene polymorphism and stroke: A study from north east of Iran

Background: Stroke is a multifactorial disorder and a major cause of morbidity and mortality around the world. There are growing numbers of candidate gene pathways which are thought to be associated with stroke. Genes involved in lipid metabolism are important issues in stroke studies. Studying different polymorphisms in these genes are becoming an interest for researchers. 5-lipoxygenase activating protein (ALOX5AP) is one of these genes. Different studies have provided different relations between ALOX5AP promoter polymorphism (rs17222919) and stroke. In the present study, we have evaluated this gene polymorphism in a population in north east of Iran. Methods: This case-control study took place in Ghaem Hospital, Mashhad, Iran. Patients with computed tomography (CT) or magnetic resonance imaging (MRI) confirmation for ischemic stroke were enrolled in this study and considered as case group. Healthy persons without ischemic stroke were control group. During 1-year period of this study, ALOX5AP gene polymorphism in 200 healthy patients (control group) as well as 228 patients with stroke (case group) was evaluated by polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP). Results: All of 428 persons (228 cases and 200 healthy controls) enrolled in this study. The genotype and allele frequency was significantly different between both groups (P = 0.001 and P = 0.003, respectively). A total number of 54 patients had G allele in case group in contrast to 27 ones in control group. Also, 174 patients in case group had T allele and 173 persons had this allele in control group. In compression of TT genotype, the risk of developing stroke in GG and TG genotypes increased by 3.998 and 1.643, respectively. Also the risk of ischemic stroke with G allele would increase by 2.128. Conclusion: According to our results, ALOX5AP promoter polymorphism (rs17222919) is related to increased ischemic stroke in Iranian population.

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Association of Ankle Brachial Pressure Index (ABPI) in Patients with Ischemic Stroke: A Case-Control Study

Bangladesh Journal of Neuroscience ◽

10.3329/bjn.v29i1.56169 ◽

2013 ◽

Vol 29 (1) ◽

pp. 31-42

Author(s):

Mohammad Selim Shahi ◽

Aminur Rahman ◽

Md Shaheen Wadud ◽

Ak Takib Uddin Ahmed ◽

Uttam Kumar Saha ◽

...

Keyword(s):

Ischemic Stroke ◽

Case Control Study ◽

Epidemiological Studies ◽

Case Control ◽

Control Group ◽

Case Group ◽

Medical College ◽

The Difference ◽

Relationship Of ◽

Control Study

Background: Several epidemiological studies have identified the association of abnormal ABPI with ischemic stroke. So the goal of this study was to determine the actual relationship of ABPI with ischemic stroke in the context of our country. Materials and Methods: This case control study was carried out in the Department of Neurology, Sir Salimullah Medical College and Mitford Hospital, Dhaka, Bangladesh. ABPI was measured by Doppler ultrasound machine of 100 patients who were admitted to the Mitford Hospital during the study period. Among them 50 patients with Ischemic stroke, confirmed by CT/MRI scan of brain were considered as ‘case’ and 50 age- sex matched individuals with one or more vascular risk factors (VRF) but without stroke were considered as ‘control’. Then the results of ABPI were compared between the two groups. Results: Among the 50 patients with ischemic stroke (case group) , 74% had normal ABPI and 26% had ABPI< 0.9; on the other hand among 50 age and sex matched individuals (control group) 90% had normal ABPI and 10% had ABPI <0.9. The difference was statistically significant between two groups (p=<0.05).This association remained significant even after adjustment for potential confounders (age, gender, high BMI, hypertension, diabetes mellitus, hyperlipidemia, smoking, ischemic heart disease and family history) in a multiple logistic regression model. Conclusion: The incidence of low ABPI is significantly higher in ischemic stroke patients than the age- sex matched control. Bangladesh Journal of Neuroscience 2013; Vol. 29 (1) : 31-42

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Genetic Polymorphism TNFα -308G>A and Ischemic Stroke in Northern Romania

Acta Medica Marisiensis ◽

10.2478/amma-2013-0016 ◽

2013 ◽

Vol 59 (2) ◽

pp. 75-77

Author(s):

Felicia Petrișor ◽

Ra Popp ◽

Andreea Cătană ◽

M Porojan ◽

Iv Pop

Keyword(s):

Ischemic Stroke ◽

Population Group ◽

Control Group ◽

Restriction Enzyme Digestion ◽

Cross Sectional ◽

Mutant Genotype ◽

Pcr Rflp ◽

The Relationship ◽

Control Study

Abstract Introduction: Stroke is one of the leading causes of death in Romania. Evidence in supporting the role of the pro-inflammatory cytokine TNFalpha in ischemic pathogenesis is now well established. The aim of the present study is to evaluate the relationship between TNFα -308G>A polymorphism and ischemic stroke in a Northern Romanian population group and to determine whether it has an influence on the risk of cerebral events. This is a cross-sectional, randomized, case-control study for the evaluation of TNFα -308G>A polymorphism alleles frequency among patients with ischemic stroke. Material and method: The study included 108 patients diagnosed with ischemic stroke (neurological and CT scan examination), and 118 healthy unrelated controls. TNFα -308G>A genotyping was carried out using PCR-RFLP technique. The amplification of the relevant gene fragment was subjected to restriction enzyme digestion, followed by gel electrophoresis. Results: Molecular analysis did not reveal an increased frequency of GA mutant genotype in the study group compared to the control group (p = 0.879, OR = 0.928, CI = 0.512-1.682). Conclusions: We found no significant differences in distribution of the TNFα -308G>A polymorphism between ischemic stroke patients and controls.

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SNP G-1082A IL-10 GENE: ALLELE AND GENOTYPE DISTRIBUTION OF PERIODONTITIS PATIENT IN YOGYAKARTA

Dentika Dental Journal ◽

10.32734/dentika.v19i2.412 ◽

2016 ◽

Vol 19 (2) ◽

pp. 117-120

Author(s):

Rezmelia Sari ◽

Prayitno Prayitno ◽

Alya Nur Fadhilah

Keyword(s):

Gene Polymorphism ◽

Case Control ◽

Control Group ◽

Case Group ◽

Genotype Distribution ◽

Inclusion Criteria ◽

Cotton Swab ◽

Periodontitis Patient ◽

Pcr Rflp ◽

Control Research

Periodontitis is multifactorial inflamation process and related to disproportion of cytokine. IL-10 is a dominant noninflammatory cytokines that related to gene polymorphism. Polymorphism G-1082A IL-10 genes has been reported to increase the risk of periodontitis occurs in Italian populations, apart from different result found in Brazilian. The purpose of this research was to determine the polymorphism G-1082A IL-10 in periodontitis patients in Indonesia, especially among Yogyakarta’s Javanese. This is a case-control research with subjects according to the inclusion criteria. DNA was taken by cotton swab from the epithelial cells of buccal mucosa, and was isolated using a PrestoTM (GeneAid) kit. Genotyping analysis by using the PCR RFLP technique and descriptive results were presented. The result showed that A allele frequency is 100% and no G allele was found. AA genotype in case group has lower frequency than in control group and vice versa. From this research, it was concluded that A allele was dominant in Yogyakarta’s Javanese, and AA genotype frequency is lower in individual with periodontitis.

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Association of Ankle Brachial Pressure Index (ABPI) in Patients with Ischemic Stroke : A Case Control Study

Chattagram Maa-O-Shishu Hospital Medical College Journal ◽

10.3329/cmoshmcj.v12i3.16710 ◽

2013 ◽

Vol 12 (3) ◽

pp. 27-33

Author(s):

Mohammad Selim Shahi ◽

Aminur Rahman ◽

Md Shaheen Wadud ◽

Uttam Kumar Saha ◽

AK Takib Uddin Ahmed ◽

...

Keyword(s):

Ischemic Stroke ◽

Case Control Study ◽

Epidemiological Studies ◽

Case Control ◽

Control Group ◽

Case Group ◽

Medical College ◽

The Difference ◽

Relationship Of ◽

Control Study

Background: Several epidemiological studies have identified the association of abnormal ABPI with ischemic stroke. So the goal of this study was to determine the actual relationship of ABPI with ischemic stroke in the context of our country. Methods: This case control study was carried out in the Department of Neurology, Sir Salimullah Medical College and Mitford Hospital, Dhaka, Bangladesh. ABPI was measured by Doppler ultrasound machine of 100 patients who were admitted to the Mitford Hospital during the study period. Among them 50 patients with Ischemic stroke, confirmed by CT/MRI scan of brain were considered as case and 50 age-sex matched individuals with one or more vascular risk factors (VRF) but without stroke were considered as control. Then the results of ABPI were compared between the two groups. Results: Among the 50 patients with ischemic stroke (case group), 74% had normal ABPI and 26% had ABPI< 0.9; on the other hand among 50 age and sex matched individuals (control group) 90% had normal ABPI and 10% had ABPI <0.9. The difference was statistically significant between two groups. (p=<0.05).This association remained significant even after adjustment for potential confounders (age, gender, high BMI, hypertension, diabetes mellitus, hyperlipidemia, smoking, ischemic heart disease and family history) in a multiple logistic regression model. Conclusion: The incidence of low ABPI is significantly higher in ischemic stroke patients than the age- sex matched control. Chattagram Maa-O-Shishu Hospital Medical College Journal Volume 12, Issue 3, September 2013: 27-33

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Association of Dementia in Ischemic Stroke: A Case Control Study

Bangladesh Journal of Neuroscience ◽

10.3329/bjn.v30i1.57363 ◽

2014 ◽

Vol 30 (1) ◽

pp. 35-44

Author(s):

Abu Jafor Md Salahuddin ◽

Md Rezaul Karim Khan ◽

Md Muniruzzaman Bhuiyan ◽

Nuruddin Md Eusuf ◽

Rased Imam Zahid ◽

...

Keyword(s):

Diabetes Mellitus ◽

Ischemic Stroke ◽

Case Control Study ◽

Smoking Habit ◽

Target Population ◽

Case Control ◽

Control Group ◽

Case Group ◽

Alzhiemer's Disease ◽

Control Study

Objectives: To evaluate the association of dementia in ischemic stroke. Methodology: This case control study was carried out in the department of Neurology at BSMMU, Dhaka from 1st January 2010 to 31st December 2011 for duration of two years to evaluate the association of dementia in ischemic stroke. The target population for this study include all patients presented with ischemic stroke at the range of 3 to 6 months after stroke with the age group of 40 to 70 years are included in this study and patients of dementia other than ischemic stroke like Alzhiemer’s disease, vit-B12 deficiency, thyroid dysfunction were excluded from this study. A total number of 120 respondents were included in this study. Age & sex matched 60 patients of ischemic stroke were selected as cases and rest 60 people were taken as control group. Informed written consent was taken from each patient or his/ her attendant. All information regarding history and physical findings; and other risk factors for dementia were collected to fill up the preformed questionnaire. Relevant physical examinations like nervous system examination, selected general and systemic examination were recorded. Result & Observation: Dementia was present in case and control group 18(30.0%) and 2(3.3%) respectively. The difference was statistically significant (p=0.001). Present smoking habit was more in case (45.0%) than in control group (16.7%) which was statistically significant (p=0.001) with a OR of 4.07 with a 95% CI of 1.89-8.75. Past smoking habit was more in case (16.7%) than control group (11.7%). Non-smoker was more in control (71.7%) than case group (38.3%). Diabetes mellitus was more common in case group (38.3%) than control group 5(8.3%) which was statistically significant (p=0.001) with a 6.84 OR and 95% CI of 2.39-19.6. Conclusion: The study permit to conclude that dementia is directly associated with ischemic stroke. We found a correlation between age, family history of dementia, hypertension, diabetes mellitus and dyslipidemia with dementia. Bangladesh Journal of Neuroscience 2014; Vol. 30 (1): 35-44

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Progesterone Receptor Gene Polymorphism Promoter Region +331G/A Increases Risk of Endometriosis

Indonesian Journal of Obstetrics and Gynecology ◽

10.32771/inajog.v4i1.73 ◽

2016 ◽

pp. 52-56

Author(s):

Syifa Alkaf ◽

Aerul Chakra ◽

Usman Said ◽

Irsan Saleh

Keyword(s):

Progesterone Receptor ◽

Gene Polymorphism ◽

Promoter Region ◽

Receptor Gene ◽

Case Group ◽

Progesterone Receptor Gene ◽

Pcr Rflp ◽

Increase Risk ◽

Study Population ◽

Control Study

Objective: To identify relationship between progesterone receptor gene polymorphism promoter region +331G/A with the risk of endometriosis. Method: An observational case-control study. Population are women with endometriosis and/or adenomyosis who have been performed laparotomy/laparoscopy at Obstetrics and Gynecology Department Dr. Mohammad Hoesin General Hospital Palembang, January-November 2013. Subjects fulfilled inclusion criteria, given informed consent and performed blood sampling continued by PCRRFLP. Results were divided into A/A genotype (homozygote mutant), G/A (heterozygote mutant), and G/G (homozygote wild type). Data were analyzed by SPSS 21.0 version. Result: PCR-RFLP results for+331G/A genotype were 26 (54.1%) in case group and 14 (26.4%) in control. +331A/A genotype was not found in both groups. There was significant increase risk of endometriosis in women carrying genotype +331G/A to those with genotype +331G/G with OR 3.29 (p

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Risk Factors of Recurrent Ischemic Events after Acute Noncardiogenic Ischemic Stroke

Current Pharmaceutical Design ◽

10.2174/1381612825666191029103756 ◽

2020 ◽

Vol 25 (45) ◽

pp. 4827-4834 ◽

Cited By ~ 1

Author(s):

Limin Zhang ◽

Xingang Li ◽

Dongzhi Wang ◽

Hong Lv ◽

Xuezhong Si ◽

...

Keyword(s):

Risk Factors ◽

Logistic Regression ◽

Regression Analysis ◽

Ischemic Stroke ◽

Operating Characteristic ◽

Control Group ◽

Case Group ◽

Stroke Patients ◽

Clopidogrel Therapy ◽

Ischemic Events

Background: A considerable proportion of acute noncardiogenic ischemic stroke patients continue to experience recurrent ischemic events after standard therapy. Aim: We aimed to identify risk factors for recurrent ischemic event prediction at an early stage. Methods : 286 non-cardioembolic ischemic stroke patients with the onset of symptoms within 24 hours were enrolled. Vascular risk factors, routine laboratory data on admission, thromboelastography test seven days after clopidogrel therapy and any recurrent events within one year were assessed. Patients were divided into case group (patients with clinical adverse events, including ischemic stokes, transient ischemic attack, myocardial infarction and vascular related mortality) and control group (events-free patients). The risk of the recurrent ischemic events was determined by the receiver operating characteristic curve and multivariable logistic regression analysis. Results: Clinical adverse events were observed in 43 patients (case group). The mean levels of Mean Platelet Volume (MPV), Platelet/Lymphocyte Ratio (PLR), Lymphocyte Count (LY) and Fibrinogen (Fib) on admission were significantly higher in the case group as compared to the control group (P<0.001). Seven days after clopidogrel therapy, the ADP-induced platelet inhibition rate (ADP%) level was lower in the case group, while the Maximum Amplitude (MA) level was higher in the case group as compared to the control group (P<0.01). The Area Under the Curve (AUC) of receiver operating characteristic(ROC) curve of LY, PLR, , Fib, MA, ADP% and MPV were 0.602, 0.614, 0.629, 0.770, 0.800 and 0.808, respectively. The logistic regression analysis showed that MPV, ADP% and MA were indeed predictive factors. Conclusion: MPV, ADP% and MA were risk factors of recurrent ischemic events after acute noncardiogenic ischemic stroke. Urgent assessment and individual drug therapy should be offered to these patients as soon as possible.

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Associations between Red Blood Cell and Platelet Transfusions and Retinopathy of Prematurity

Neonatology ◽

10.1159/000512020 ◽

2020 ◽

pp. 1-7

Author(s):

Tobias Hengartner ◽

Mark Adams ◽

Riccardo E. Pfister ◽

Diane Snyers ◽

Jane McDougall ◽

...

Keyword(s):

Retinopathy Of Prematurity ◽

Odds Ratio ◽

Case Control Study ◽

Case Control ◽

Control Group ◽

Case Group ◽

Same Sex ◽

Live Births ◽

Adjusted Logistic Regression ◽

Control Study

Aim: The aim of this study is to examine possible associations between the transfusion of RBC or platelets (PLTs) and the development of retinopathy of prematurity (ROP) in infants. Methods: This retrospective, national, case-control study included all live births in Switzerland between 2013 and 2018. We investigated preterm infants at a gestational age of <28 weeks, who developed higher stage ROP (≥stage 2, n = 178). Each case infant was matched to another of the same sex who did not develop ROP (n = 178, control group). Results: When compared with the control group, we observed higher numbers of RBC transfusions per infant and higher percentages of infants receiving PLT transfusions in the case group. An adjusted logistic regression analysis revealed that both RBC (odds ratio [OR] 1.081, 95% confidence interval [CI] 1.020–1.146) and PLT transfusions (OR = 2.502, 95% CI 1.566–3.998) numbers were associated with ROP development. Conclusions: Multiple RBC and PLT transfusions are associated with higher stage ROP development. Prospective studies are required to determine their potential as risk factors.

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Association of CYP11B2 gene polymorphism with preeclampsia in north east of Iran (Khorasan province)

Gene ◽

10.1016/j.gene.2020.144358 ◽

2020 ◽

Vol 733 ◽

pp. 144358 ◽

Cited By ~ 1

Author(s):

Mohsen Azimi-Nezhad ◽

Atieha Teymoori ◽

Reza Ebrahimzadeh-Vesal

Keyword(s):

Gene Polymorphism ◽

North East ◽

East Of Iran

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The role of leukotriene modifying agent treatment in neuropsychiatric events of elderly asthma patients: a nested case control study

Asthma Research and Practice ◽

10.1186/s40733-021-00070-4 ◽

2021 ◽

Vol 7 (1) ◽

Author(s):

Sang Oh Kang ◽

Kyung Hyun Min ◽

Hyun Jeong Kim ◽

Tae Hyeok Kim ◽

Woorim Kim ◽

...

Keyword(s):

Case Control Study ◽

Case Control ◽

Boxed Warning ◽

Control Group ◽

Case Group ◽

Newly Diagnosed ◽

Crude Odds Ratio ◽

Asthma Patients ◽

Nested Case Control ◽

Control Study

Abstract Background In March 2020, the US Food and Drug Administration decided that the dangers related to neuropsychiatric events (NPEs) of montelukast, one of the leukotriene modifying agents (LTMAs), should be communicated through ‘boxed warning’. In case of NPEs, the prevalence has been the highest in elderly people. Because the characteristics of the elderly such as old age itself can act as risk factors. Therefore, an investigation on safety of LTMAs related to NPEs in elderly using LTMAs is needed. Method A nested case-control study using an elderly sample cohort from the Korean National Health Insurance Service database was used. The asthma cohort included asthma patients newly diagnosed between 2003 and 2013. Within the asthma cohort, the case group was defined as patients who were diagnosed with NPEs. Among patients who had never been diagnosed with NPEs, the control group was selected by matching 1:1 by propensity score. Patients who were prescribed LTMAs for 1 year prior to index date were defined as the exposure group. The logistic regression model was used to measure the effect of LTMAs on NPEs. Results We identified 141,165 patients with newly diagnosed asthma, and selected 31,992 patients per each case and control group. Exposure to LTMAs significantly increased the risk of overall NPEs about in comparison with the absence of exposure (crude odds ratio [OR] 1.58, 95% CI 1.50–1.68). After adjusting for confounding factors, the overall NPEs risk increased (adjusted OR, 1.67, 95% CI 1.58–1.78). Conclusion This study suggests that elderly asthma patients prescribed LTMAs had a higher risk of NPEs than patients who were not treated with LTMAs. Therefore, clinicians should be aware of the potential risks of LTMAs.

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