Objective: To evaluate antibacterial activity of the Indonesian water soluble green tea extract,Camellia sinensis, against clinical isolates of methicillin-resistant Staphylococcus aureus (S. aureus) (MRSA) and multi-drug resistant Pseudomonas aeruginosa (MDR-P. aeruginosa).
Methods:Antimicrobial activity of green tea extract was determined by the disc diffusion method and the minimum inhibitory concentration (MIC) was determined by the twofold serial broth dilutions method. The tested bacteria using in this study were the standard strains and multi-drug resistant clinical isolates of S. aureus and P. aeruginosa, obtained from Laboratory of Clinical Microbiology, Faculty of Medicine, University of Indonesia.
Results:The results showed that the inhibition zone diameter of green tea extracts for S. aureus ATCC 25923 and MRSA were (18.970±0.287) mm, and (19.130±0.250) mm respectively. While the inhibition zone diameter for P. aeruginosa ATCC 27853 and MDR-P. aeruginosa were (17.550±0.393) mm and (17.670±0.398) mm respectively. The MIC of green tea extracts against S. aureus ATCC 25923 and MRSA were 400 μg/mL and 400 μg/mL, respectively, whereas the MIC for P. aeruginosa ATCC 27853 and MDR-P. aeruginosa were 800 μg/mL, and 800 μg/mL, respectively.
Conclusions: Camellia sinensis leaves extract could be useful in combating emerging drug-resistance caused by MRSA and P. aeruginosa.

Objectives: The purpose of this study was to develop a valid and reliable instrument for assessing patients’ behavior toward the risk of hypoglycemia through self-assessment. Insufficient education and supervision of type 2 diabetes mellitus (DM) outpatients by healthcare providers is a significant concern, affecting their behavior during the treatment process. Additionally, inappropriate behavior typically increases the risk of hypoglycemia. To mitigate this risk, several studies have recommended evaluating patients’ behavior, necessitating the development of a new instrument. Methods: The study procedures were conducted in 3 stages: instrument development (face and content validity, stage I), construct validity and reliability test (stage II), and criterion validity (stage III). Stage I involved 5 healthcare practitioners, including internal medicine doctors, nurses, dietitians, and pharmacists in hospitals and community health centers. Stage II included 20 respondents using a 1-shot test method. Stage III involved 237 type 2 DM outpatients at Central General Hospital (RSUP) in Jakarta, employing a cross-sectional design and consecutive sampling. Results: The results indicated that the developed instrument was valid and reliable, comprising 9 domains (29 questions). These domains included behavior toward blood glucose monitoring, diet, physical activity, medication, assistance from healthcare providers, hypoglycemia management, self-care, family support, and insulin use. Furthermore, poor behavior was found to increase the risk of hypoglycemia by 2.36 times. Conclusions Based on these results, the developed instrument could be effectively used to evaluate behavior toward hypoglycemia among type 2 DM outpatients, confirming its validity and reliability.

Objectives: The purpose of this study was to develop a valid and reliable instrument for assessing patients’ behavior toward the risk of hypoglycemia through self-assessment. Insufficient education and supervision of type 2 diabetes mellitus (DM) outpatients by healthcare providers is a significant concern, affecting their behavior during the treatment process. Additionally, inappropriate behavior typically increases the risk of hypoglycemia. To mitigate this risk, several studies have recommended evaluating patients’ behavior, necessitating the development of a new instrument. Methods: The study procedures were conducted in 3 stages: instrument development (face and content validity, stage I), construct validity and reliability test (stage II), and criterion validity (stage III). Stage I involved 5 healthcare practitioners, including internal medicine doctors, nurses, dietitians, and pharmacists in hospitals and community health centers. Stage II included 20 respondents using a 1-shot test method. Stage III involved 237 type 2 DM outpatients at Central General Hospital (RSUP) in Jakarta, employing a cross-sectional design and consecutive sampling. Results: The results indicated that the developed instrument was valid and reliable, comprising 9 domains (29 questions). These domains included behavior toward blood glucose monitoring, diet, physical activity, medication, assistance from healthcare providers, hypoglycemia management, self-care, family support, and insulin use. Furthermore, poor behavior was found to increase the risk of hypoglycemia by 2.36 times. Conclusions Based on these results, the developed instrument could be effectively used to evaluate behavior toward hypoglycemia among type 2 DM outpatients, confirming its validity and reliability.

Objectives: The purpose of this study was to develop a valid and reliable instrument for assessing patients’ behavior toward the risk of hypoglycemia through self-assessment. Insufficient education and supervision of type 2 diabetes mellitus (DM) outpatients by healthcare providers is a significant concern, affecting their behavior during the treatment process. Additionally, inappropriate behavior typically increases the risk of hypoglycemia. To mitigate this risk, several studies have recommended evaluating patients’ behavior, necessitating the development of a new instrument. Methods: The study procedures were conducted in 3 stages: instrument development (face and content validity, stage I), construct validity and reliability test (stage II), and criterion validity (stage III). Stage I involved 5 healthcare practitioners, including internal medicine doctors, nurses, dietitians, and pharmacists in hospitals and community health centers. Stage II included 20 respondents using a 1-shot test method. Stage III involved 237 type 2 DM outpatients at Central General Hospital (RSUP) in Jakarta, employing a cross-sectional design and consecutive sampling. Results: The results indicated that the developed instrument was valid and reliable, comprising 9 domains (29 questions). These domains included behavior toward blood glucose monitoring, diet, physical activity, medication, assistance from healthcare providers, hypoglycemia management, self-care, family support, and insulin use. Furthermore, poor behavior was found to increase the risk of hypoglycemia by 2.36 times. Conclusions Based on these results, the developed instrument could be effectively used to evaluate behavior toward hypoglycemia among type 2 DM outpatients, confirming its validity and reliability.

Objective: To isolate, identify, and evaluate a new angiotensin-converting enzyme inhibitor from Peperomia pellucida (L.) Kunth herbs. Methods: A dried sample of Peperomia pellucida herb was successively macerated with n-hexane and ethyl acetate. The ethyl acetate extract solution was evaporated to obtain the crude extract. Vacuum liquid column chromatography and thin layer chromatography were performed to obtain two pure compounds. Then, both compounds were elucidated and identified using the spectroscopic method. Angiotensin-converting enzyme inhibitory activity studies of both compounds were determined using angiotensin-converting enzyme kit WST-1 with spectrophotometer microplate reader 96-well at 450 nm wavelength. Results: Two bioactive compounds were successfully isolated from Peperomia pellucida herb, including a new compound of 2,3,5-trimethoxy-9-(12,14,15-trimethoxybenzyl)-1H-indene and pellucidin A. Both compounds demonstrated angiotensin-converting enzyme inhibitory activity, with IC