Background: Limestone is sedimentation rocks consist of minerals calcite and aragonite, often contains silica, and fossils, commonly used in building materials. Limestone mining workers are at high risk to pneumoconiosis. Surfactant protein D(SP-D) is part of collectin family, and served as innate immune system of pathogen recognition receptor (PRR). SP-D level were usually increased in fibrotic lung disease. In this study, we sought the serum level of SP-D as marker for early pneumoconiosis in limestone worker in Indonesia.Method: This study was cross-sectional observational study. Participant of the study were 65 limestone workers, willing to participate in this study by signing informed consent, were questionnaire, and blood sample were collected to measure SP-D level by ELISA.Results: This study found that characteristic subjects dominated by male with the median of age was 42 years old and last education mostly elementary school. Majority duration of working <6 years and time working in a day >8 hours per day. The limestone mining workers mostly did not wear mask and had normal weight group. Majority limestone mining workers ever smoker, mean SP-D level in limestone workers was (66.3±5.5ng/mL), slightly higher than normal subject. Smoking status, gender, working hour were correlated with higher SP-D level.Conclusion: Although not statistically significant, the SP-D serum levels in limestone mining workers might be used as monitoring for early screening for pneumoconiosis in limestone workers.

A case of a 41-year-old man, with a lump in his left abdomen since 5 months before admission to the hospital. In the last 2 weeks the patient complained of reddish urine and pain during urination. The diagnosis of the patient is a left kidney tumor, has performed nephrectomy and splenectomy surgery. Postoperative complications include sepsis, anemia and hypoalbuminemia. Sepsis in these patients is caused by colonic perforation leading to intra-abdominal infection. These complications cause patients to get treatment in the intensive care unit longer by using a ventilator for four days.

Objective Found in plasma, urine, and saliva, cotinine can be used as a biomarker for nicotine in electronic cigarette (e-cig) users. Nicotine is addictive and causes dependence. Thus, it becomes a problem in smoking cessation programs. This study aimed to determine the relationship between urinary cotinine (UCot) and nicotine dependence levels in regular male e-cig users. Materials and Methods This cross-sectional study consecutively included regular male e-cig users and non-smokers. All subjects were interviewed and had their UCot levels measured using an enzyme-linked immunosorbent assay method. The regular e-cig users completed the Penn State Nicotine Dependence Index questionnaire. Results This study recruited 71 males aged 18-45 years divided into e-cig users and non-smokers group. The predominating characteristics in e-cig users are as follows: 23 males (67.6%) aged <30 years, the highest education of senior high school 25 (73.5%) and 25 (73.5%) subjects had occupation. The UCot levels among the e-cig users in the non-dependency group were lower than that of the medium-high dependency group ( P = .008). The median value for UCot level in the regular e-cig users was higher than that of the non-smoker group (276.11 [58.01-284.15] ng/mL vs 5.21 [4.65-23.72] ng/mL, P < .001). Factors influencing the UCot levels of the e-cig users were age ( P = .041), nicotine level of the e-cig liquid ( P = .013), and the flavor of the e-cig liquid (eg, menthol or non-menthol; P = .040). Conclusion UCot and nicotine dependence levels in the regular male e-cig users were significantly related. Nicotine dependence was found in 76.5% of the regular male e-cig users. The UCot levels in the e-cig users were significantly higher than in the non-smokers.

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