scholarly journals The E23K variant in the Kir6.2 subunit of the ATP-sensitive K+ channel does not augment impaired glucose tolerance in Caribbean subjects with a family history of type 2 diabetes

2005 ◽  
Vol 185 (3) ◽  
pp. 439-444 ◽  
Author(s):  
Chidum Ezenwaka ◽  
Risha Kalloo ◽  
Mathias Uhlig ◽  
Robert Schwenk ◽  
Juergen Eckel

The E23K variant of the Kir6.2 gene has been shown to be associated with type 2 diabetes mellitus in Caucasian subjects. Because offspring of type 2 diabetic patients have a genetically increased risk of developing diabetes, we sought to identify the E23K variant of the Kir6.2 gene in offspring of Caribbean patients with type 2 diabetes and assess the contribution of this variant to impaired glucose tolerance in these subjects. Forty-six offspring of patients with type 2 diabetes and 39 apparently healthy subjects whose immediate parents were not diabetic (‘control’) were studied after an overnight fast. Anthropometric indices were measured and blood samples were collected. Fasting and 2 h plasma glucose, insulin and lipids were subsequently determined. Insulin resistance was calculated using the homeostatic model assessment technique. The offspring and control subjects had similar frequencies of the E23K polymorphism (52.6 vs 45.5%, P>0.05) and the frequency of the E23K variant did not differ significantly between gender and ethnic distributions, irrespectively of a family history of diabetes (P>0.05). There were no significant differences in biochemical risk factors for developing diabetes in offspring carriers of the E23K variant compared with offspring non-carriers of the mutation. Offspring with the E23K mutation had even significantly higher 2 h insulin concentrations when compared with control subjects. It is concluded that the presence of the Kir6.2 E23K genotype in Caribbean subjects with an immediate positive family history of diabetes does not confer significantly higher levels of biochemical risk factors for the development of type 2 diabetes.

Author(s):  
Noraidatulakma Abdullah ◽  
Nor Abdul Murad ◽  
John Attia ◽  
Christopher Oldmeadow ◽  
Mohd Kamaruddin ◽  
...  

The prevalence of type 2 diabetes is escalating rapidly in Asian countries, with the rapid increase likely attributable to a combination of genetic and lifestyle factors. Recent research suggests that common genetic risk variants contribute minimally to the rapidly rising prevalence. Rather, recent changes in dietary patterns and physical activity may be more important. This nested case-control study assessed the association and predictive utility of type 2 diabetes lifestyle risk factors in participants from Malaysia, an understudied Asian population with comparatively high disease prevalence. The study sample comprised 4077 participants from The Malaysian Cohort project and included sub-samples from the three major ancestral groups: Malay (n = 1323), Chinese (n = 1344) and Indian (n = 1410). Association of lifestyle factors with type 2 diabetes was assessed within and across ancestral groups using logistic regression. Predictive utility was quantified and compared between groups using the Area Under the Receiver-Operating Characteristic Curve (AUC). In predictive models including age, gender, waist-to-hip ratio, physical activity, location, family history of diabetes and average sleep duration, the AUC ranged from 0.76 to 0.85 across groups and was significantly higher in Chinese than Malays or Indians, likely reflecting anthropometric differences. This study suggests that obesity, advancing age, a family history of diabetes and living in a rural area are important drivers of the escalating prevalence of type 2 diabetes in Malaysia.


2010 ◽  
Vol 63 (3-4) ◽  
pp. 231-236 ◽  
Author(s):  
Dusica Zivanovic ◽  
Sandra Sipetic ◽  
Marina Stamenkovic-Radak ◽  
Jelena Milasin

Introduction Type 2 diabetes mellitus is a common multifactorial genetic syndrome, which is determined by several genes and environmental factors. The aim of the present study was to investigate the presence of risk factors for developing diabetes type 2 among diabetic individuals and to compare the presence of risk factors among diabetic individuals with and without positive family history for type 2 diabetes. Material and methods This study was conducted in Cuprija during the period from February to June 2002. The case group included 137 individuals having diagnosis type 2 diabetes. The control group included 129 subjects having the following diagnoses: hypertension, angina pectoris, chronic obstructive lung disease, gastric ulcer or duodenal ulcer. All participants were interviewed at the Medical Center Cuprija using structural questionnaire. The data were collected regarding demographic characteristics, exposure to various chemical and physical agents, stress, smoking, obesity, physical inactivity and family history of diabetes. In the statistical analysis chi square test was used. Results The diabetic individuals were statistically significantly older (40 and more years old) (p=0,000), and they came from rural areas more frequently (p=0,006) than the individuals without diabetes. Significantly more diabetics had lower educational level (p=0,000) and they were agriculture workers and housewives significantly more frequently (p=0,000) than nondiabetic individuals. Furthermore, obesity (p=0,000) and physical inactivity (p=0,003) were significantly more frequent among the diabetic individuals than the nondiabetics. The diabetic individuals had significanly (p=0,000) more numbers of relatives with diabetes mellitus type 2 than the nondiabetics. The diabetic individuals with positive family history of diabetes were significantly older (p=0,021) and more frequently from urban areas (p=0,018) than the diabetic individuals without the positive family history of diabetes. Also they were significantly less exposed to physical agents (p=0,004). Discussion In our study, like in many others, age, place of residence, education, occupation, obesity, physical inactivity, positive family history of diabetes type 2 and exposure to physical agents were identified as potential risk factors for diabetes type 2. Conclusion Different risk factors are probably responsible for developing type 2 diabetes among individuals with and without positive family history of type 2 diabetes.


Author(s):  
Ugonma, Winnie Dozie ◽  
Nnenna, Vivian Okonkwo ◽  
Okwuchi, Blessed Nworuh ◽  
Somtochukwu, Mercy Orji ◽  
Chidozie Joakin Nwaokoro ◽  
...  

Background: Hypertension is among the important causes of non-communicable disease burden worldwide. It has raised public health concerns in both developed and developing nations. It mostly occurs in patients with diabetes and the prevalence depends on duration, type and age of the patient. The study aimed at determining the risk factors of hypertension among type 2 diabetic patients in Imo State, Nigeria. Methods: A hospital-based descriptive survey design involving 50 patients attending hospital was used. Structured questionnaire complemented with interview schedule was used to collect data from the respondents. Data were analyzed using frequency and mean score. Hypotheses were tested using Chi-square at 5% significance level. Results: The result showed that the majority (70.0%) of the patients was hypertensive, 54.0% of the patients used dietary control and drugs in the treatment of the diseases. Furthermore, it was found that 54.0% ate salty foods always, 58.0% of the patients added extra table salt in their meals, 54.0% ate canned foods and 82.0% took sugary drinks always. It was also found that 66.0% ate always from restaurants and 58.0% ate more of starchy foods. The result further showed that 74.0% of the patients avoided physical exercise and 70.0% indicated that doing stress works made them get anxious. Eighty percent of the patients had hypertension in their family history and the 74.0% indicated it was their brother/sister. The X2 result showed a significantly association between family history of hypertension and type 2 diabetes X2(121, N = 50) = 187, p = 0.000. It was also found that dietary pattern was significantly associated with risk of type 2 diabetes X2(121, N = 50) = 187, p = 0.000. Conclusion: Dietary pattern and family history of hypertension were significantly associated with type 2 diabetes. It was recommended that sensitization campaigns be organized to educate women on the effect of diets on diabetes. Also, family history of hypertension should be ascertained from patients to ensure early detection and treatment of diabetes.


2017 ◽  
Vol 9 (9) ◽  
pp. 42
Author(s):  
Sana Arshad ◽  
Sania Tahir ◽  
Bilal Tahir ◽  
Nazia Tahir ◽  
Tahir Rasool ◽  
...  

BACKGROUND: Diabetes is the leading cause of morbidity and mortality amongst the people of Pakistan. In 2015, 7 million people had diabetes and the number is still on raise. Family history of diabetes, high body mass index, and other sociodemographic factors are the risk factors of diabetes. Persistent exposure to excessive glucose may be a reason behind diabetic complications like nephropathy, neuropathy, retinopathy, cardiomyopathy and gestational diabetes mellitus.METHODS: For the evaluation of laboratory parameters, 600 blood samples were collected at Akhuwat Diabetic Centre and from Jinnah Hospital, Lahore. Demographic data of the participants was collected by filling a questionnaire. Lipid profile, liver enzymes, and renal function tests were performed and statistical analysis was done.RESULTS: Type 2 diabetes mellitus among other types is the most prevalent form of diabetes in our population. Family history of diabetes (p=0.002), Body Mass Index (>25) p<0.001, high cholesterol (p=0.04), high triglyceride p<0.001, high LDL p<0.001 and low HDL p<0.001 are significantly associated with the incidence of diabetes. Hypertension among the other comorbidities is more common in diabetic patients.CONCLUSION: Type 2 Diabetes Mellitus is highly prevalent in the local population. Improved lifestyle and proper medical monitoring can help to manage diabetes in our population.


2007 ◽  
Vol 23 (5) ◽  
pp. 259-266 ◽  
Author(s):  
Marsha Howell Adams ◽  
Carol Ann Barnett Lammon

Type 2 diabetes mellitus is reaching epidemic proportions among children and adolescents. School health fairs offer an opportunity to identify children with risk factors for the development of type 2 diabetes mellitus. This study identified selected risk factors (i.e., high-risk racial/ethnic group, obesity, elevated blood pressure, elevated casual blood glucose, elevated total cholesterol, and the presence of acanthosis nigricans) for development of type 2 diabetes mellitus in rural children with or without a family history of diabetes during annual school health fairs. Of the children screened, 40% (673) presented with two or more of the identified risk factors for type 2 diabetes mellitus. The presence of multiple risk factors in participants reporting a positive family history of diabetes mellitus versus those with no family history was not statistically significant. Based on the study results, factors other than family history may be more predictive for the development of type 2 diabetes mellitus in rural school children.


Author(s):  
Senthil Kumar Subramani ◽  
Dhananjay Yadav ◽  
Meerambika Mishra ◽  
Umamaheswari Pakkirisamy ◽  
Prakesh Mathiyalagen ◽  
...  

Aim: This study evaluated the prevalence of prediabetes and type 2 diabetes mellitus in the Gwalior-Chambal region of India. Methods: A cross-sectional house-to-house survey was conducted on a population of 7608 subjects, aged between 20 and 79 years for fasting blood glucose level in finger-prick blood. Participants were stratified based on blood glucose levels, gender, age, family history, etc. to assess their impact. Result: The prevalence of type 2 diabetes and prediabetes in the Gwalior-Chambal region was found to be 11.4% and 5.7%, respectively. The prevalence of diabetes was significantly higher in the urban population (12.7%) while that of prediabetes was higher in the rural population (7.9%). Male subjects recorded a higher prevalence of prediabetes (8.2%, OR 1.54 in rural; 5.1%, OR 1.26 in urban) as well as diabetes (rural 9.2%, OR 3.15; urban 16.5%, OR 1.57). Both prediabetes and diabetes were recorded as being higher in those subjects leading a sedentary lifestyle and in the aged population. The prevalence of hyperglycemia was much higher in those with a family history of type 2 diabetes (30.6% in rural, 21.5% in urban). Almost half of the diabetics in the rural population were diagnosed for the first time. The multivariate regression analysis identified male gender, increasing age of 30 years and above, and positive family history as significant risk factors for diabetes whereas age of 40 to 79 and less physical activity were significant risk factors for prediabetes. Conclusion: Family history of diabetes, and sedentary lifestyle appeared as key factors promoting prediabetes and diabetes in the Gwalior-Chambal region. A lack of awareness appeared as one of the major causes of the high prevalence in the rural region.


1970 ◽  
Vol 42 (2) ◽  
pp. 137-141
Author(s):  
T Jaja ◽  
IE Yarhere

Background: The prevalence of Type 2 diabetes mellitus (T2 DM) in children and adolescents is on the increase, therefore, prevention and early detection are important.Objective: To assess for easily identifiable risk factors (overweight/obesity, hypertension, Impaired Fasting Glucose (IFG) and family history of diabetes) for T2DM in adolescents in public secondary schoolsResult: Eight hundred and eighty adolescents aged 10 to 19 years were screened and 124(14.1%) were overweight/obese. 457 (51.9%) of students had none of the risk factors while 272(30.9%) had at least one risk factor. Using the American Diabetes Association criteria for identification of those at risk for T2DM, 21(2.4%) were identified. The frequency of presence of risk factors was more in females (3.3%), mid adolescent age group (3.1%) and those with positive family history of diabetes. These findings were however not statistically significant. There was a statistically significant association between presence of hypertension and impaired fasting glucose and risk factor for type 2 DM.Conclusion: The significant risk factors identified in this study were prehypertension/hypertension and impaired fasting blood glucose.Key words: Adolescence, Risk factors, Type 2 diabetes mellitus


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