scholarly journals Hereditary risk factors for uterine leiomyoma: a search for marker SNPs

Author(s):  
K.A. Svirepova ◽  
M.V. Kuznetsova ◽  
N.S. Sogoyan ◽  
D.V. Zelensky ◽  
E.A. Lolomadze ◽  
...  

Uterine leiomyomas are a worrying reproductive health issue that has serious social implications. The aim of this study was to conduct a search for marker single nucleotide polymorphisms (SNPs) associated with uterine leiomyoma. To test the hypothesis about the contribution of genetic predisposition to the pathogenesis of myomas, the initial group of 100 patients with a verified diagnosis of uterine leiomyoma was divided into 2 subgroups: subgroup Ia (women with a family history of the disease) and subgroup 1b (women with no family history of the disease). The control group consisted of 30 postmenopausal patients who did not have a medical history of uterine fibroids and denied uterine fibroids in their close female relatives. DNA sequences were read using Sanger sequencing. Statistically significant differences (p < 0.05) were discovered between the analyzed groups in terms of genotype frequencies for rs12637801 and rs12457644. Also, previously unknown protective SNPs were identified whose rare alleles could predict the reduced risk of uterine leiomyomas.

Doctor Ru ◽  
2021 ◽  
Vol 20 (8) ◽  
pp. 7-11
Author(s):  
M.V. Kuznetsova ◽  
◽  
K.A. Svirepova ◽  
N.S. Sogoyan ◽  
A.I. Nikiforova ◽  
...  

Study Objective: To assess the efficacy of methods for DNA gene typing (direct sequencing and two variants of real-time PCR) for routine analysis of large groups; to compare the prevalence of genotypes of three single nucleotide polymorphisms in groups of women with uterine leiomyoma (with a separate analysis of a group with a family history of the disease) and in controls. Study Design: comparative study. Materials and Methods. Subjects were divided into groups using the case-control principle. DNA gene typing results for two groups of patients were analysed. Also, we analysed prevalence of genotypes in study group (patients with uterine leiomyoma) and in controls (patients without a history of uterine leiomyoma and a family history of the disease). The primary method used for genotyping was direct sequencing with genotype imaging. On the second stage, we tested two different PCR-based genotyping methods. Study Results. Patients with uterine leiomyoma were subject to genotyping using three single nucleotide polymorphisms (rs3020434, rs124577644, rs12637801) in ESR1, FBN2, and KCWMB2 introns. We have identified significant differences in prevalence of genotypes between the study group and controls. Polymorphism prevalence is statistically different between patients with leiomyomas, controls and women with a family history of the disease. It is demonstrated that the use of the two variants of real-time PCR testing instead of direct sequencing speeds up results; these methods are a less expensive and less labour-intensive tool for genotyping of single nucleotide polymorphisms in large groups. Conclusion. Real-time PCR testing can be used for express and efficient analysis of single nucleotide polymorphisms associated with uterine leiomyoma. Both methods (PCR genotyping with the use of oligonucleotide probes and analysis of high-resolution melting profiles) tested in this paper make it possible to get unambiguous results in 97–99% of samples. Keywords: uterine leiomyoma, single nucleotide polymorphisms, family proneness.


2020 ◽  
Vol 8 (3) ◽  
pp. 103-112
Author(s):  
Atefeh SADEGHI SHERMEH ◽  
Majid KHOSHMIRSAFA ◽  
Ali-Akbar DELBANDI ◽  
Payam TABARSI ◽  
Esmaeil MORTAZ ◽  
...  

Introduction: Tuberculosis (TB) and especially resistant forms of it have a substantial economic burden on the community health system for diagnosis and treatment each year. Thus, investigation of this field is a priority for the world health organization (WHO). Cytokines play important roles in the relationship between the immune system and tuberculosis. Genetic variations especially single nucleotide polymorphisms (SNPs) impact cytokine levels and function against TB. Material and Methods: In this research SNPs in IFN-γ (+874 T/A) and IL-10 (-592 A/C) genes, and the effects of these SNPs on cytokine levels in a total of 87 tuberculosis patients and 100 healthy controls (HCs) were studied. TB patients divided into two groups: 1) 67 drug-sensitive (DS-TB) and 2) 20 drug-resistant (DR-TB) according to drug sensitivity test using polymerase chain reaction (PCR). For the genotyping of two SNPs, the PCR-based method was used and IFN-γ and IL-10 levels were measured by ELISA in pulmonary tuberculosis (PTB) and control group. Results: In -592A/C SNP, only two genotypes (AA, AC) were observed and both genotypes showed statistically significant differences between DR-TB and HCs (p=0.011). IL-10 serum levels in PTB patients were higher than HCs (p=0.02). The serum levels of IFN-γ were significantly higher in DS-TB patients than that of the other two groups (p<0.001); however, no significant differences were observed for allele and genotype frequencies in IFN-γ +874. Conclusions: Our results suggest that the SNP at -592 position of IL-10 gene may be associated with the susceptibility to DR-TB. However, further investigation is necessary. Keywords: Polymorphism, IFN-γ, IL-10, tuberculosis, drug-resistant tuberculosis


PEDIATRICS ◽  
1964 ◽  
Vol 33 (1) ◽  
pp. 115-119
Author(s):  
WILMER C. WISER ◽  
FRANCES R. BEIER

Meconium samples were collected from 5 newborn infants, who had a known family history of cystic fibrosis of the pancreas but who did not present with meconium ileus, and 11 normal newborn infants. Extracts of the meconium samples were examined for the presence of serum proteins by paper and immunoelectrophoresis. Three of the infants who had a family history of cystic fibrosis of the pancreas showed protein in their meconium, and this was identified by immunoelectrophoresis as consisting mainly of albumin; each of these babies subsequently developed classic symptoms of cystic fibrosis of the pancreas. The two remaining infants had no albumin in the meconium and did not develop signs of cystic fibrosis. None of the meconium samples of the control group of infants contained detectable amounts of albumin. Possible sources of the abnormal protein content of meconium are discussed, and the suggestion that the finding of albumin in meconium of newborn infants may prove to constitute a valuable diagnostic procedure for screening newborn infants for cystic fibrosis of the pancreas is advanced.


1981 ◽  
Vol 139 (1) ◽  
pp. 38-42 ◽  
Author(s):  
R. C. B. Aitken ◽  
J. A. Lister ◽  
C. J. Main

SummaryThe psychological and physiological features of 20 aircrew consecutively referred for treatment of anxiety symptoms when flying were compared with a matched control group of uncomplaining aircrew. There were no significant differences between the two groups on psychometric tests of personality, though there were differences in skin conductance; the phobics had a higher rate of spontaneous fluctuation, and habituated less to a repeated auditory tone. More of the phobic group worried about their wives and acknowledged childhood and other adulthood phobias; more had a family history of an episode perhaps best described as flying trauma. Many were on an overseas posting when symptoms presented. These few features could correctly classify 85 per cent of the subjects into the phobic or control group. This type of ‘phobic aircrew index’ now requires to be validated prospectively for its predictive value.


2021 ◽  
pp. 172460082110575
Author(s):  
Ligia C.A. Cardoso-Duarte ◽  
Caroline F. Fratelli ◽  
Alexandre S.R. Pereira ◽  
Jéssica Nayane Gomes de Souza ◽  
Renata de Souza Freitas ◽  
...  

Introduction Papillary thyroid cancer corresponds to approximately 1% of all carcinomas; nevertheless, it is the most prevalent endocrine neoplasm in the world. Studies reveal that the BAX (−248 G > A) polymorphism may be associated with negative regulation of BAX gene transcription activity, causing a decrease in its protein expression. Objective The present study aimed to describe the genotype and allele frequencies of BAX single nucleotide polymorphisms (−248 G > A) (rs4645878) in the research patients, and to associate its presence with susceptibility to papillary thyroid cancer. Methods This case-control study was conducted with 30 patients with papillary thyroid cancer. For the evaluation of genetic polymorphisms, the polymerase chain reaction-restriction fragment length polymorphism technique was employed. Allele and genotype frequencies were estimated using the SPSS program, and significant associations were considered when p < 0.05. Results There was a significant genotypic difference between papillary thyroid cancer and the control group (p = 0.042). The GG genotype provided a protective factor for papillary thyroid cancer (p = 0.012, odds ratio (OR) = 0.313; confidence interval (CI) = 0.123–0.794). Likewise the G allele was a protective factor for papillary thyroid cancer (p = 0.009; OR = 0.360; CI = 0.163–0.793). The BAX gene polymorphism (−248 G > A) was associated with papillary thyroid cancer. Conclusion BAX (−248 G > A) GG genotype carriers, or at least one mutated allele, was associated with papillary thyroid cancer in the Brazilian population studied, and the G allele presence is considered a protective factor against papillary thyroid cancer occurrence.


2020 ◽  
Author(s):  
Michał Ambroziak ◽  
Katarzyna Niewczas-Wieprzowska ◽  
Agnieszka Maicka ◽  
Andrzej Budaj

Abstract Background. Premature coronary artery disease belongs to the most pressing global issues in a modern cardiology. Family history appears to be one of the most important and significant risk factors in young patients with myocardial infarction (MI). The aim of the study was to investigate the role of family history of premature cardiovascular disease (CVD) in patients <50 years with myocardial infarction (MI) compared to patients ≥ 50 years with MI and to young healthy people.Methods. The studied group (MI<50) consisted of 240 patients aged 26-49 years with MI. The control groups consisted of 240 patients (MI≥50) with MI aged 50-92 years and 240 healthy people aged 30-49 years.Results. There were statistically significant differences between the MI<50 and MI≥50 and young healthy groups regarding family history of premature MI/ischaemic stroke and percent of patients with of ≥2 relatives affected including parents, children, siblings, siblings of parents and grandparents (10.8%, 2.9%, 3.7%, respectively; p<0.0001). There was a statistically significant negative correlation between the age of the first episode of MI and the number of relatives with a history of premature MI/stroke (r=0.249, p<0.05) within all MI patients. Statistically significant differences between MI<50 and MI≥50 groups as well as young healthy control group were revealed regarding prevalence of smoking, body mass index (BMI), LDL, HDL, triglycerides (TG) and glucose levels.Conclusions. Younger age of patients with myocardial infarction correlates with a higher number of relatives with a history of premature MI/ischemic stroke. Thus, the family history of premature atherosclerosis involving not only the first-, but also the second-degree relatives, seems to be valuable and could be considered in an individual CVD risk evaluation in young people.


2020 ◽  
Vol 7 (3) ◽  
pp. 446
Author(s):  
Venugopal Margekar ◽  
Shweta Thakur ◽  
O. P. Jatav ◽  
Pankaj Yadav

Background: A significant percent of cardiovascular event occurs without well-known modifiable risk. A new tool for early identification for atherosclerosis is required for early intervention. Aims and objectives of the study was to study the risk factors for CAD and its correlation with CIMT.Methods: One hundred and forty subjects were studied for the risk factors of CAD in Department of Medicine of G.R. Medical College, Gwalior from 2012 to 2013. Out of 140 subjects, 100 were patients having CAD and 40 age matched subjects were included as control group. Data was also recorded from their offspring. High resolution B mode ultrasonography was performed to assess CIMT of carotid arteries. The maximum CIMT of any one side of carotid artery was taken for study.Results: CAD was more prevalent among males (78%). Majority of the offspring of cases had age between 28-42 years and majority were male (73%). Most common risk factors for CAD was dyslipidemia (48%), hypertension (24%), diabetes (12%) and smoking (21%), whereas in offspring’s of CAD patients, dyslipidemia was seen in 28%, hypertension in 3%, diabetes and tobacco smoking in 12% and 24% respectively. The CIMT of CAD patients was significantly increased with increasing the number of risk factors and the same pattern was also seen in controls.  The CIMT of asymptomatic offspring’s having positive family history was significantly more than the asymptomatic offspring without positive family history of CAD.Conclusions: CIMT measurements can be used as a surrogate marker of atherosclerosis as it has showed a direct link with number of risk factors of CAD. 


2020 ◽  
Author(s):  
Ruifang Liu ◽  
Fangxing Xu ◽  
Yujie Zhou ◽  
Tongku Liu

Abstract Background In recent years, the prevalence rate of ACS in Chinese young women has been increasing significantly, becoming the main cause of death in young female. This study aimed to investigate the characteristics and difference of risk factors in Chinese young women with ACS and to provide references for ACS prevention and treatment. Methods A 1:1 case-control study was conducted to evaluate risk factors of 415 young female patients with ACS (ACS group) who underwent PCI treatment and 415 young female cases without ACS (control group) who were hospitalized and confirmed by coronary angiography to exclude coronary heart disease from January 2010 to August 2016. The average age of the cases in the two groups was respectively (40.77±4.02) years-old and (40.57±4.01) years-old (P> 0.05). Results The risk factors in ACS group were overweight (64.10%), hypertension (49.88%), hyperlipidemia (35.66%), diabetes (23.37%), depression or anxiety disorder (16.62%), gynecological diseases (16.39%), Hyperuricemia (15.18%), family history of early onset coronary heart disease (14.94%), hyperhomocysteinemia (11.33%), hypothyroidism(14.96%), hypercholesterolemia (8.43%) and high c-reactive protein (7.47%), and were statistically significant difference (P<0.01) compared with that of control group. The average number of risk factors per case in ACS group was significantly more than that of control groups (P<0.01). There was a statistically significant difference in the number of combined risk factors of the overweight cases compared between two groups (P<0.01). Regression analysis showed that hyperlipidemia, hyperhomocysteinemia, overweight(obesity), high CRP, hypertension, hypothyroidism, gynecological diseases, depression or anxiety, cardiac insufficiency, hypercholesterolemia, diabetes, oral contraceptives, family history of early onset CHD, and autoimmune diseases were independent risk factors (P<0.01). The bivariate correlation analysis between CRP level and age was r= -0.158 (P<0.01). This result showed the younger ACS patient is the higher serum CRP. Conclusion The independent risk factors of ACS in young women are hyperlipidemia, hyperhomocysteinemia, overweight, high CRP, hypertension, hypothyroidism, gynecological diseases, depression or anxiety, cardiac insufficiency, hypercholesterolemia, diabetes, oral contraceptives, family history of early onset CHD, and autoimmune diseases. The co-existence of multiple risk factors is the main cause suffering from ACS in young women.


2016 ◽  
Vol 2016 ◽  
pp. 1-6
Author(s):  
Mohamed A. Satti ◽  
Carmen Paredes Saenz ◽  
Rubin Raju ◽  
Sierra Cuthpert ◽  
Abed Kanzy ◽  
...  

Introduction. Uterine leiomyomas, also called uterine fibroids or myomas, are the most common pelvic tumors in women. They are very rarely the cause of acute complications. However, when complications occur they cause significant morbidity and mortality. Thromboembolic disease has been described as a rare complication of uterine leiomyomas. DVT is a serious illness, sometimes causing death due to acute PE.Cases. We report a case series of 3 patients with thromboembolic disease associated with uterine leiomyoma at Hurley Medical Center, Flint, Michigan, during 2015 and conduct a literature review on the topic. A literature search was conducted using Medline, PubMed, and PMC databases from 1966 to 2015.Conclusion. The uterine leiomyoma is a very rare cause of PE and only few cases have been reported. DVT secondary to uterine leiomyoma should be considered in a female presenting with abdominal mass and pelvic pressure, if there is no clear common cause for her symptoms. Thromboembolic disease secondary to large uterine leiomyoma should be treated with acute stabilization and then hysterectomy. Prophylactic anticoagulation would be beneficial for lowering the risk of VTE in patients with large uterine leiomyoma.


2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Wen Liu ◽  
Xuan Gao ◽  
Haobo Zhang ◽  
Ran Liu ◽  
Yongzhi Cao ◽  
...  

AbstractSTAG3 is essential for male meiosis and testis of male Stag3−/− mice shows the histopathological type of germ cell maturation arrest (MA). Whether variants of the STAG3 gene exist in Chinese idiopathic non-obstructive azoospermia (NOA) patients needs to be determined. We recruited 58 Chinese NOA men with MA who underwent testis biopsy and 192 fertile men as the control group. The 34 exons of the STAG3 gene were amplified using polymerase chain reaction (PCR) and sequenced. We identified eight novel single nucleotide polymorphisms (SNPs), including two missense SNPs (c.433T > C in exon2 and c.553A > G in exon3), three synonymous SNPs (c.539G > A, c.569C > T in exon3, and c.1176C > G in exon8), and three SNPs in introns. The allele and genotype frequencies of the novel and other SNPs have no significant differences between two groups. Our results indicated that variants in the coding sequence of the STAG3 gene were uncommon in NOA patients with MA in Chinese population. Future studies in large cohorts of different ethnic populations will be needed to determine the association between the STAG3 gene and NOA.


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