The exposures to carbamate pesticides (BPMC specifically) of agricultural workers were estimated by collecting pesticide in air by personal sampler and by analyzing with gas chromatography. Data revealed that the highest BPMC concentration in the aspirated air was 7.7 mg/m3. Concentrations were generally higher in the group whose spray conditions were controlled than the group uncontrolled. Actual concentrations were relatively lower than the values predicted theoretically. These findings suggest that personal sampler be useful in the estimation of pesticide exposure.
Farmers ; Chromatography, Gas* ; Humans ; Pesticides ; Pilot Projects* ; Rural Health

BACKGROUND: To evaluate the safety and the efficacy of amlodipine, a dihydropyridine calcium antagonist, monotherapy in the treatment of moderate essential hypertension. METHOD: Amlodipine 5mg once a day was administered as a starting dose in 30 patients with essential hypertension in the morning and a one step upward titration was performed (amlodipine 10 mg once a day) was done at the end of 4weeks treatment. Final evaluation was done at 12weeks with laboratory test and echocardiogram. RESULT: Within 4weeks treatment with dose of 5mg amlodipine once a day, the systolic blood pressure (SBP) was decreased(184.5+/-23.3/150.5+/-16.0mmHg,p<0.000), and the diastolic blood pressure(DBP) was also decreased significantly (109.9+/-04.6/92.3+/-11.5mmHg, P<0.001). After 12 weeks of treatment with a mean dosage of 6.6mg once a day, SBP and DBP was maintained comparing with basal level (147.0+/-15.8/88.1+/-0.9mmHg, respectively). The efficacy of amlodipine treatment was noted an excellent in 16 patients(53.3%), good in 4 patient(13.3%), fair in 4 patients(13.3%), and failed in 2 patients(6.7%). There was no significant change in heart rate before and after amlodipine treatment. (80.0+/-2.3/80.9+/-10.4 beats/minute n.s). Amlodipine had not significant effects on laboratory findings such as serum creatinine, BUN, ALT/AST, hemoglobin, leukocyte count,platelet and lipid profiles. There was facial flushing 2 patients, but no need to discontinue administration of amlodipine and all patients completed for 12weeks therapy. CONCLUSION: It is concluded that amlodipine is an effective antihypertensive agent, as monotherapy once a day in patients with moderate essential hypertension.
Amlodipine ; Blood Pressure ; Calcium ; Creatinine ; Flushing ; Heart Rate ; Humans ; Hypertension* ; Leukocytes

OBJECTIVES: This study was conducted to investigate the association between health risk factors and mortality in Juam cohort. METHODS: The subjects were 1,447 males and 1,889 females who had been followed up for 68.5 months to 1 January 2001. Whether they were alive or not was confirmed by the mortality data of the National Statistical Office. A total of 289 persons among them died during the follow-up period. The Cox's proportional hazard regression model was used for survival analysis. RESULTS: Age, type of medical insurance, self cognitive health level, habit of alcohol drinking, smoking, exercise and BMI level were included in Cox's proportional hazard model by gender. The hazard ratio of age was 1.07(95% CI: 1.05-1.10) in men, 1.09(95% CI: 1.06-1.12) in women. The hazard ratio of medical aid(lower socioeconomic state) was 1.43(95% CI 1.02-2.19) in women. The hazard ratios of current alcohol drinking and current smoking were respectively 1.69(95% CI: 1.01-2.98), 1.52(95% CI: 1.02-2.28) in women. The hazard ratio of underweight was 1.56(95% CI 1.08-2.47) in men. The hazard ratios of underweight, normoweight, overweight, and obesity were respectively 1.63(95% CI: 1.02-2.67), 1.0(referent), 0.62(95% CI: 0.32-1.63), 1.27(95% CI: 0.65-3.06), which supported the U-shaped relationship between body mass index and mortality among the men over 65. CONCLUSIONS: The health risk factors increasing mortality were age, underweight in male, age, lower socioeconomic state, current alcohol drinking, current smoking in female. To evaluate long-term association between health risk factors and mortality, further studies need to be carried out.
Alcohol Drinking ; Body Mass Index ; Cohort Studies* ; Female ; Follow-Up Studies ; Health Status ; Humans ; Insurance ; Male ; Mortality* ; Obesity ; Overweight ; Proportional Hazards Models ; Risk Factors* ; Smoke ; Smoking ; Thinness

No abstract available.

No abstract available.
Tuberculosis* ; Tuberculosis, Lymph Node*

BACKGROUND: It is known that left ventricular(LV) wall motion is not uniform even in normal heart, and the restoring forces make phase differences between LV wall motion and mitral flow velocity during rapid filling period. METHOD: To investigate the regional nonuniformity and restoring forces in 46 patients with hypertension(HT)(group:normal wall thickiness.n=12,II:LVH with fractional shortening(FS)>25%. n=22. III:FS<25%.n=12). We measured the time intervals from A2 to peak thinning rate point of LV posterior wall(A2-(-)dpw/dt).to mitral flow starting point (IRT).and to peak mitral flow velocity(A2-E) by M-mode and Doppler echocardiography. RESULTS: The noniformity((-)dpW/dt-dL/dt)and phase differance((-)dpw/dt-E) were increased in HT(control:HT.22+/-7.8 vs. 49+/-5.2msec, 63+/-4.5 vs, 86+/-6.2msec, p<0.05 respectively).In group comparison, nonuniformity increased in group II and III(group I: group II, III, 35+/-5.1 vs. 50+/-7.1,70+/-14msec, p<0.05 respectively). but phase difference increased only in group II(groupII: group I, III, 93+/-6.0 vs. 75+/-5.2, 80+/-20msec, p<0.05, respectively). CONCLUSION: We interpreted these data that in HT with hypertrophy or not, the nonuniformity of LV wall motion working on the restoring forces which can be expressed as phase difference between LV wall motion and mitral flow. But in HT with hypertensive heart failure group, no significant changes of phase difference and it's suggest that other mechanism could be also working on early diastolic filling.
Echocardiography* ; Echocardiography, Doppler ; Heart ; Heart Failure ; Humans ; Hypertension* ; Hypertrophy

BACKGROUND: A regional wall motion nonuniformity and a phase difference between LV posterior wall motion and transmitral flow are present during normal rapid filling period and are thought to be an evidence for involvement of ventricular restoring forces. To assess the role of nonuniformity on diastolic funtional impairment of asymmetric septal hypertrophy(ASH), the time relations between left ventricular regional wall motions and filling velocity were studied. METHOD: We measured the time intervals from A2 to peak rate of LV posterior wall(short axis) thinning(A2-(-)dpw/dt), peak rate of medial mitral annulus (long axis dimension) lengthening(A2-dL/dt) and peak mitral flow(A2-E) by M-mode and Doppler echocardiography. Result: In ASH patients, A2-(-)dpw/dt(106+/-6msec, mean SE) and the regional wall motion nonuniformity((-)dpw/dt-dL/dt, 89+/-11msec, mean SE) were increased significantly when compared with normal control values(88+/-4, 28+/-5msec, mean SE, p<0.01,respectively).In normal controls, peak mitral flow velocity lagged peak rate of regional wall motion, so the phase differences were present((-)dpw/dt-E :71+/-8msec, dL/dt-E:44+/-6msec). In ASH patients, (-)dpw/dt-E was present(90+/-16msec) but dL/dt-E was not present or reversed(-21+/-18 msec). So these chacteristic phase differences were disturbed. CONCLUSION: These data suggested that the relaxation nonuniformity of regional wall motion in ASH may act as an energy dissipating factor of restoring forces during rapid filling period.
Axis, Cervical Vertebra ; Cardiomyopathy, Hypertrophic* ; Echocardiography* ; Echocardiography, Doppler ; Humans ; Relaxation

In order to investigate the occurrence characteristics of cancer in terms of industry in Kwangju-Chonnam area, medical utilization records of industrial medical insurance corporations during the period of 1987 to 1988 were reviewed for the identification of neoplastic disease. The cases obtained from the medical records were followed up for the verification and to get additional information. Standardized incidence data were compared by occupational characteristics. Multiple logistic regression analysis was applied to analyze the difference of incidence or distribution of cancer as a whole or of some selected cancer. Total cases of cancer identified were 242 during the study period. Annual incidence rate was calculated as 123.1 per 100,000 person. The frequent types of cancer were cancers of stomach, liver, lung, colon and rectum, bladder and lymphoma in descending order. Employees of mine and other sand handling industries showed significantly higher risks for cancer of stomach and cancer as a whole. Employees of the transportation industry showed the higher risk for cancer of liver. Workers in small-sized industry (< or = 100) had a higher risk for cancer than who in large-sized industry (>100). These findings suggested the effect of occupational environmental exposure to cancer development.
Colon ; Environmental Exposure ; Humans ; Incidence ; Insurance* ; Liver ; Liver Neoplasms ; Logistic Models ; Lung ; Lymphoma ; Medical Records ; Occupations ; Rectum ; Silicon Dioxide ; Stomach ; Stomach Neoplasms ; Transportation ; Urinary Bladder

Bile* ; Choledochal Cyst* ; Humans ; Infant* ; Peritonitis*

Kerion celsi is severe inflammatory type of tinea capitis. It occurs almost exclusively in pre-pubertal children. We report a case of Kerion celsi occuring in a 79-year-old woman. Culture of infected hair on Sabouraud glucose agar showed Microsporum canis Farnily history and fungus study suggested the importance of indirect route in Microsporum canis infection.
Agar ; Aged ; Child ; Female ; Fungi ; Glucose ; Hair ; Humans ; Microsporum* ; Tinea Capitis*