Objective: To explore the association between soil selenium levels and the risk of diabetes in Chinese adults aged 35-74 years. Methods: Data for this study were derived from the China Chronic Diseases and Behavioral Risk Factors Surveillance 2010 survey. Selenium concentrations in soil were obtained from the Atlas of Soil Environmental Background Values in China. A two-level binary logistic regression model was used to determine the association between soil selenium concentrations and the risk of diabetes, with participants nested within districts/counties. Results: A total of 69,332 participants aged 35-74 years, from 158 districts/counties were included in the analysis. Concentrations of selenium in soil varied greatly across the 158 districts/counties, with a median concentration of 0.219 mg/kg ( : 0.185-0.248). The results showed that both Quartile 1 (0.119-0.185 mg/kg) and Quartile 4 (0.249-0.344 mg/kg) groups were positively associated with diabetes compared to a soil selenium concentration of 0.186-0.219 mg/kg (Quartile 2), crude odds ratios ( s) (95% ) were 1.227 (1.003-1.502) and 1.280 (1.048-1.563). The values were 0.045 and 0.013, for Quartile 1 and Quartile 4 groups, respectively. After adjusting for all confounding factors of interest, the Quartile 1 group became non-significant, and the Quartile 4 group had an adjusted (95% ) of 1.203 (1.018-1.421) relative to the reference group (Quartile 2), the values was 0.030. No significant results were seen for the Quartile 3 group (0.220-0.248 mg/kg) compared to the reference group. Conclusion Excessive selenium concentrations in soil could increase the risk of diabetes among Chinese adults aged 35-74 years.
Adult ; Aged ; China ; epidemiology ; Diabetes Mellitus ; chemically induced ; epidemiology ; Diet ; Female ; Humans ; Logistic Models ; Male ; Middle Aged ; Odds Ratio ; Risk Factors ; Selenium ; deficiency ; metabolism ; Soil ; chemistry

BACKGROUND: Pesticides are an agricultural chemical suspected to be a significant contributor to a global diabetes pandemic. The purpose of this study was to confirm previous findings of the link between diabetes and some agricultural pesticides and to identify the particular pesticides that are most likely to pose a risk of diabetes in the community. METHODS: A population-based case-controlled study was conducted among residents in the Bang Rakam district of Phitsanulok Province in Thailand. Lifetime pesticide exposure and other relevant data were collected from 866 participating cases with diabetes mellitus and 1021 healthy controls. RESULTS: After adjusting for gender, age, BMI, cigarette smoking, alcohol consumption, family history of diabetes, and occupation, it was found that the prevalence of diabetes was positively associated with exposure to all types of pesticides, including insecticides, herbicides, fungicides, rodenticides, and molluscicides, with exposure to rodenticides being statistically significant (OR = 1.35; 95%CI 1.04-1.76). Among 35 individual brand-named pesticides investigated, we found statistically significant ORs with three insecticides, including one organochlorine [endosulfan (OR = 1.40; 95%CI 1.01-1.95)], one organophosphate [mevinphos (OR = 2.22; 95%CI 1.17-4.19)], and one carbamate [carbaryl/Sevin (OR = 1.50; 95%CI 1.02-2.19)]; and one fungicides [benlate (OR = 2.08; 95%CI 1.03-4.20)]. CONCLUSIONS Our results suggest that the occurrence of diabetes among Thai farmer was associated with pesticide exposure. This finding is in line with previous epidemiological and animal studies. Further study using a larger sample size is needed to confirm the relationship and to identify the more toxic compounds.
Adult ; Aged ; Case-Control Studies ; Diabetes Mellitus ; chemically induced ; epidemiology ; Farmers ; Female ; Humans ; Male ; Middle Aged ; Occupational Exposure ; analysis ; Pesticides ; adverse effects ; Prevalence ; Thailand ; epidemiology

Hypoglycemia is a common finding in both daily clinical practice and acute care settings. The causes of severe hypoglycemia (SH) are multi-factorial and the major etiologies are iatrogenic, infectious diseases with sepsis and tumor or autoimmune diseases. With the advent of aggressive lowering of HbA1c values to achieve optimal glycemic control, patients are at increased risk of hypoglycemic episodes. Iatrogenic hypoglycemia can cause recurrent morbidity, sometime irreversible neurologic complications and even death, and further preclude maintenance of euglycemia over a lifetime of diabetes. Recent studies have shown that hypoglycemia is associated with adverse outcomes in many acute illnesses. In addition, hypoglycemia is associated with increased mortality among elderly and non-diabetic hospitalized patients. Clinicians should have high clinical suspicion of subtle symptoms of hypoglycemia and provide prompt treatment. Clinicians should know that hypoglycemia is associated with considerable adverse outcomes in many acute critical illnesses. In order to reduce hypoglycemia-associated morbidity and mortality, timely health education programs and close monitoring should be applied to those diabetic patients presenting to the Emergency Department with SH. ED disposition strategies should be further validated and justified to achieve balance between the benefits of euglycemia and the risks of SH. We discuss relevant issues regarding hypoglycemia in emergency and critical care settings.
Diabetes Mellitus/drug therapy ; Humans ; Hypoglycemia/blood/*chemically induced/*complications/epidemiology ; Hypoglycemic Agents/adverse effects/therapeutic use ; Insulin/adverse effects/therapeutic use

BACKGROUND/AIMS: To investigate abnormalities in blood electrolyte levels during severe hypoglycemia in Korean patients with type 2 diabetes mellitus (T2DM) in a clinical setting. METHODS: Blood electrolyte levels in adult T2DM patients during severe hypoglycemia were collected from January 1, 2008 to December 31, 2012. Patients who maintained normal serum creatinine and blood urea nitrogen levels were utilized in the study. Severe hypoglycemia was defined as a condition requiring medical assistance, such as administering carbohydrates when serum glucose levels less than 70 mg/dL were observed, in conjunction with other symptoms of hypoglycemia. RESULTS: A total of 1,068 patients who visited the emergency room with severe hypoglycemia were screened, of which 219 patients were included in this study. The incidence of abnormal levels for any electrolyte was 47%. Hypokalemia (< 3.5 mmol/L) was the most common type of electrolyte disturbance observed at 21.9%. A decrease in serum potassium levels was associated with decreases in blood glucose levels (r = 0.151, p = 0.025). During severe hypoglycemia, median blood glucose levels, incidence of tachycardia (> 100 beats per minute) and severe hypertension (> or = 180/120 mmHg) were 30 mg/dL (range, 14 to 62) and 35 mg/dL (range, 10 to 69; p = 0.04), 18.8% and 7.2% (p = 0.02), and 20.8% and 10.2% (p = 0.05) in the hypokalemia and normokalemia groups, respectively. CONCLUSIONS: During severe hypoglycemia, hypokalemia occurred in 21.9% of T2DM patients and was associated with tachycardia and severe hypertension. Therefore, the results suggest that severe hypoglycemia may increase cardiovascular events in T2DM.
Aged ; Aged, 80 and over ; Biomarkers/blood ; Blood Glucose/drug effects/*metabolism ; Diabetes Mellitus, Type 2/blood/diagnosis/drug therapy/*epidemiology ; Emergency Service, Hospital ; Female ; Humans ; Hypertension/chemically induced/epidemiology ; Hypoglycemia/blood/chemically induced/diagnosis/*epidemiology/therapy ; Hypoglycemic Agents/adverse effects ; Hypokalemia/blood/chemically induced/diagnosis/*epidemiology ; Male ; Middle Aged ; Potassium/*blood ; Republic of Korea/epidemiology ; Risk Factors ; Severity of Illness Index ; Tachycardia/chemically induced/epidemiology ; *Water-Electrolyte Balance/drug effects

OBJECTIVE: To investigate the incidence, risk factors and prognosis for contrast-induced acute kidney injury (CI-AKI) according to ESUR and KDIGO criteria in patients undergoing angiography.
 METHODS: We evaluated 260 patients undergoing angiography and/or intervention therapy from April 2011 to January 2012 in the Second Xiangya Hospital of Central South University. All patients received low-osmolality contrast agent (ioversol). Serum creatinine was measured before angiography or at 48 or 72 h after procedure. The multivariate logistic regression was used to analyze the risk factors of CI-AKI. The major adverse events were observed in a year of follow-up.
 RESULTS: Among the 260 patients, 23 experienced CI-AKI and the incidence was 8.8% according to ESUR criteria. Twelve patients experienced CI-AKI and the incidence was 4.6% according to KDIGO criteria. The multivariate logistic regression analysis showed that diabetes mellitus and dehydration were the independent risk factors for CI-AKI according to ESUR criteria; In another KDIGO criteria, chronic kidney disease (CKD), hypercholesterolemia and diabetes mellitus were the independent risk factors for CI-AKI. The prognosis study showed that the mortality of patients with CI-AKI were significantly higher than those without CI-AKI (P<0.05).
 CONCLUSION The incidence of CI-AKI is associated with diagnostic criteria. Diabetes mellitus, CKD, dehydration and hypercholesterolemia were the independent risk factors for CI-AKI. CI-AKI is a relevant factor for mortality in a year after angiography and/or intervention therapy.
Acute Kidney Injury ; chemically induced ; diagnosis ; mortality ; Angiography ; Contrast Media ; adverse effects ; Dehydration ; epidemiology ; Diabetes Mellitus ; epidemiology ; Humans ; Incidence ; Iodopyracet ; adverse effects ; Logistic Models ; Prognosis ; Renal Insufficiency, Chronic ; epidemiology ; Risk Factors

Lead (Pb), mercury (Hg), and cadmium (Cd) are common heavy metal toxins and cause toxicological renal effects at high levels, but the relevance of low-level environmental exposures in the general population is controversial. A total of 1,797 adults who participated in the KNHANES (a cross-sectional nationally representative survey in Korea) were examined, and 128 of them (7.1%) had chronic kidney disease (CKD). Our study assessed the association between Pb, Hg, Cd exposure, and CKD. Blood Pb and Cd levels were correlated with CKD in univariate logistic regression model. However, these environmental heavy metals were not associated with CKD after adjustment for age, sex, BMI, smoking, hyperlipidemia, hypertension, diabetes, and these metals in multivariate logistic regression models. We stratified the analysis according to hypertension or diabetes. In the adults with hypertension or diabetes, CKD had a significant association with elevated blood Cd after adjustment, but no association was present with blood Pb and Hg. The corresponding odds ratio [OR] of Cd for CKD were 1.52 (95% confidence interval [CI], 1.05-2.19, P=0.026) in adults with hypertension and 1.92 (95% CI, 1.14-3.25, P=0.014) in adults with diabetes. Environmental low level of Pb, Hg, Cd exposure in the general population was not associated with CKD. However, Cd exposure was associated with CKD, especially in adults with hypertension or diabetes. This finding suggests that environmental low Cd exposure may be a contributor to the risk of CKD in adults with hypertension or diabetes.
Adult ; Cadmium/blood/*toxicity ; Cross-Sectional Studies ; Diabetes Mellitus/chemically induced/epidemiology ; *Environmental Exposure ; Female ; Humans ; Hypertension/chemically induced/epidemiology ; Kidney/drug effects/pathology ; Lead/blood/*toxicity ; Male ; Mercury/blood/*toxicity ; Metals, Heavy/*poisoning ; Middle Aged ; Nutrition Surveys ; Poisoning/*epidemiology ; Renal Insufficiency, Chronic/*epidemiology ; Republic of Korea ; Surveys and Questionnaires ; Young Adult

Glucocorticoids are effective for treating several respiratory diseases. However, they can cause hyperglycemia. This study determined the incidence and risk factors of steroidinduced diabetes mellitus (S-DM) in patients treated with glucocorticoid for respiratory diseases. A retrospective study examined patients with respiratory diseases treated with a prednisolone-equivalent glucocorticoid dose exceeding 20 mg/day for at least 4 weeks between January 2003 and December 2008. Patients whose initial random glucose level exceeded 200 mg/dL or who had pre-existing diabetes were excluded. S-DM was defined as a fasting glucose concentration exceeding 126 mg/dL or a random glucose concentration exceeding 200 mg/dL at least twice after beginning steroid treatment. A total of 231 patients with respiratory diseases met the inclusion criteria. Their median age was 55 yr, and 139 were female. The median cumulative prednisolone-equivalent glucocorticoid dose was 4,965 mg, and the median duration of steroid treatment was 193 days. S-DM was diagnosed in 34 (14.7%) of 231 patients. Multivariate logistic regression identified older age (odds ratio 1.05, 95% confidence interval 1.02-1.09) as a risk factor for S-DM. S-DM is frequent among patients with respiratory diseases treated with glucocorticoid. Clinicians should be aware of the possibility of S-DM, especially among elderly patients.
Adult ; Aged ; Aged, 80 and over ; Blood Glucose/metabolism ; Diabetes Mellitus/*chemically induced/*epidemiology ; Female ; Glucocorticoids/*adverse effects/*therapeutic use ; Humans ; Logistic Models ; Lung Diseases/complications/*drug therapy ; Male ; Middle Aged ; Retrospective Studies ; Risk Factors ; Young Adult

Hypoglycemia is a major barrier to achieving the glycemic goal in patients with type 2 diabetes. In particular, severe hypoglycemia, which is defined as an event that requires the assistance of another person to actively administer carbohydrates, glucagon, or take other corrective actions, is a serious clinical concern in patients with diabetes. If severe hypoglycemia is not managed promptly, it can be life threatening. Hypoglycemia-associated autonomic failure (HAAF) is the main pathogenic mechanism behind severe hypoglycemia. Defective glucose counter-regulation (altered insulin secretion, glucagon secretion, and an attenuated increase in epinephrine during hypoglycemia) and a lack of awareness regarding hypoglycemia (attenuated sympathoadrenal activity) are common components of HAAF in patients with diabetes. There is considerable evidence that hypoglycemia is an independent risk factor for cardiovascular disease. In addition, hypoglycemia has a significant influence on the quality of life of patients with diabetes. To prevent hypoglycemic events, the setting of glycemic goals should be individualized, particularly in elderly individuals or patients with complicated or advanced type 2 diabetes. Patients at high-risk for the future development of severe hypoglycemia should be selected carefully, and intensive education with reinforcement should be implemented.
Autonomic Nervous System/physiopathology ; Biological Markers/blood ; Blood Glucose/*drug effects/metabolism ; Diabetes Mellitus, Type 2/blood/complications/diagnosis/*drug therapy/physiopathology ; Health Knowledge, Attitudes, Practice ; Humans ; Hypoglycemia/blood/chemically induced/epidemiology/physiopathology/*prevention & control ; Hypoglycemic Agents/*adverse effects ; Incidence ; Patient Education as Topic ; Prevalence ; Prognosis ; Risk Assessment ; Risk Factors