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"Background: The prevalence of Helicobacter pylori (H. pylori) infection in the world is quite high, especially in developing countries. Usually the patient shows no specific symptoms and chronic gastritis therefore becomes chronically infected The complication of the injéction is the development of peptic ulcer; which is a predisposing factor for gastric carcinoma. Early diagnosis is an important step to avoid these complications by providing immediate accurate therapy. Methods: In this study the CLO, MIU (Motility Indole Urease) tests and culture were conducted on 131 biopsy samples of the stomach antrum mucous tissue taken from chronic dyspepsia patients from several hospitals in Jakarta. In the CLO test, biopsy tissue was put in a small well agar to be incubated at room temperature. In the MIU test the biopsy tissue sample was submerged in the small MlU tube agar with a depth of approximately 2/3 rds from the surface, and then incubated at room temperature. Another piece of biopsy tissue was cultured micro-aerophylicalty The CLO and MlU tests are considered positive if the color changes from yellow to red and are considered negative if there is no color change within 24 hours. Results: Compared to culture, the CLO test demonstrated 38% sensitivity; 96% specificity, 94% positive predictive value and 52% negative predictive value, whereas the results of the MIU test against culture method showed 76% sensitivity 89% specificity 88% positive predictive value, and 78% negative predictive value. Conclusion: The MIU test that showed high sensitivity and specyficity and thus could be further developed as an alternative diagnostic method for H. pylori infection."

"Penarik becak dayung dan becak bermesin, pengatur lalu lintas, pedagang asongan, dan pedagang kaki lima banyak terpapar dengan polusi timbal dari udara ambien yang merupakan ancaman terhadap para pekerja pinggir jalan. Penelitian ini bertujuan mengetahui hubungan karakteristik responden dengan kadar timbal dalam darah. Sampel dalam penelitian ini berjumlah 109 orang terdiri dari 58 orang penarik becak dayung, 30 orang penarik becak bermesin dan 21 orang pedagang kaki lima yang ditarik secara consecutive sampling.Hasil penelitian menunjukkan bahwa tidak ada korelasi yang signifikan antara variabel usia, tekanan darah sistolik dan tekanan darah diastolik terhadap kadar timbal dalam darah (p>0,05). Rerata kadar timbal dalam darah berbeda bermakna menurut jenis kelamin (p=0,047) dan kebiasaan merokok (p=0,003). Rerata kadar timbal dalam darah berdasarkan jenis pekerjaan, lama bekerja, tingkat pendidikan, tempat beristirahat, lokasi tempat tinggal, kebiasaan minum susu, dan kebiasaan minum alkohol tidak ada perbedaan bermakna. Uji korelasi Pearson dan korelasi Spearman menemukan tidak ada korelasi antara variabel usia dan tekanan darah terhadap kadar timbal dalam darah (p>0,05).

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Paddle rickshaw puller, motorized rickshaw pullers, traffic police, street vendors and roadside vendors is that many workers are exposed to lead from ambient air pollution. Lead pollution is a threat to roadside workers. This study is observational. The purpose of the study was to determine the association between respondent characteristic with blood lead levels. The 109 samples in this study was the 58 paddle rickshaw puller, 30 motorized rickshaw pullers and 21 hawkers, drawn with consecutive sampling.The results showed that there were no significant correlation between age, blood pressure and blood lead level (p>0.005), there were differences in mean blood lead levels by sex (p = 0.047) and smoking (p = 0.003), there was no difference in mean blood lead levels based on the type of work, length of work, level of education, place of rest, the location shelter, drinking milk, and alcohol drinking habits. Pearson correlation test and Spearman correlation found no correlation between the variables of age, and blood pressure on blood lead levels (p> 0.05)."