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Abstrak :
Objective: Cancer is a disease that gets serious attention in the medical world. This is due to the ever increasing number of patients and there has been no effective way to treat. Cancer cells have telomerase activity is relatively high compared to normal cells, so the cancer cells have the ability to continue to proliferate. Cancer cells undergo uncontrolled mitosis and have high telomerase activity compared to cells normal. Telomerase is an enzyme responsible for telomere length, a segment of DNA that is the tip of chromosomes in eukaryotic cells. Telomeres are associated with the process of aging and carcinogenesis. The purpose of this study was to determine the expression of telomerase in some cells such as breast cancer, cervical cancer, and lung cancer. Methods: The research method is experimental studies in several cancer cell cultures in the form of cell line. Cancer cells used were: HeLa (cervical cancer), MCF7 and T47D (breast cancer), WiDr (lung cancer), and Raji (lymphoma) with culture medium RPMI, DMEM, and M199. Vero cells is used (fibroblast cells) as a control (normal cells). Expression of telomerase enzyme was measured by the Immunohystochemistry (IHC) method. Results: The results showed that the cancer cells have activity/higher telomerase expression were highly significant (p<0.01) compared to normal cells (Vero cells). Similarly, the expression of telomerase in HeLa versus WiDr, WiDr versus T47D, T47D versus Raji, and Raji versus MCF7 also showed highly significant differences (p < 0.01). Telomerase expression between cancer cells that showed significant difference (HeLa cells versus Raji cells; HeLa cells versus MCF7 cell; T47D cells versus MCF7 cells) (p < 0.05). No significant difference was found in the group of HeLa cells versus T47D, WiDr versus Raji cells, and WiDr versus MCF7. Conclusions: It was concluded, that the cancer cells have telomerase expression of specific and different from each other, depending on the type of cell. T47D breast cancer cells have telomerase expression of the highest, followed by cervical cancer cells (HeLa). Lung cancer cells (WiDr) with cell lymphoma (Raji) has almost the same expression and both have lower expression.;

Abstrak :
Objective: Cancer is a disease that gets serious attention in the medical world. This is due to the ever increasing number of patients and there has been no effective way to treat. Cancer cells have telomerase activity is relatively high compared to normal cells, so the cancer cells have the ability to continue to proliferate. Cancer cells undergo uncontrolled mitosis and have high telomerase activity compared to cells normal. Telomerase is an enzyme responsible for telomere length, a segment of DNA that is the tip of chromosomes in eukaryotic cells. Telomeres are associated with the process of aging and carcinogenesis. The purpose of this study was to determine the expression of telomerase in some cells such as breast cancer, cervical cancer, and lung cancer. Methods: The research method is experimental studies in several cancer cell cultures in the form of cell line. Cancer cells used were: HeLa (cervical cancer), MCF7 and T47D (breast cancer), WiDr (lung cancer), and Raji (lymphoma) with culture medium RPMI, DMEM, and M199. Vero cells is used (fibroblast cells) as a control (normal cells). Expression of telomerase enzyme was measured by the Immunohystochemistry (IHC) method. Results: The results showed that the cancer cells have activity/higher telomerase expression were highly significant (p < 0.01) compared to normal cells (Vero cells). Similarly, the expression of telomerase in HeLa versus WiDr, WiDr versus T47D, T47D versus Raji, and Raji versus MCF7 also showed highly significant differences (p < 0.01). Telomerase expression between cancer cells that showed significant difference (HeLa cells versus Raji cells; HeLa cells versus MCF7 cell; T47D cells versus MCF7 cells) (p < 0.05). No significant difference was found in the group of HeLa cells versus T47D, WiDr versus Raji cells, and WiDr versus MCF7. Conclusions: It was concluded, that the cancer cells have telomerase expression of specific and different from each other, depending on the type of cell. T47D breast cancer cells have telomerase expression of the highest, followed by cervical cancer cells (HeLa). Lung cancer cells (WiDr) with cell lymphoma (Raji) has almost the same expression and both have lower expression.

Abstrak :
Dengue Hemorrhagic Fever (DHF) is a major public health problem in Indonesia. Jakarta is a capital city with the highest number of dengue patients. Among sporadic endemic areas in Jakarta, Pulogadung, a district of East Jakarta, is one of the endemic areas of this disease. The primary strategy for the control of DHF is based on reducing population densities of the main mosquito vector Aedes aegypti. Organophosphate is an insecticide that has been used for more than 25 years in dengue vector control program. The long term used and sublethal dosage of this insecticide can induce resistance. This laboratory study used microplate test and ELISA reader to determine the increase of alfa- esterase activity in A. aegypti larvae for detecting the resistance to organophosphate. Resistance pattern of A. aegypti to organophosphate insecticide in RW 01 Pulogadung was shown to be: 23% high resistant, 33% medium resistant and 44% sensitive. This result was highly related to local community behavior where we found that the use of insecticide spray by the people was very low (8.8% of the sample). We found that the people who used insecticide spray were only 8.8% of the sample. Therefore, organophosphate still can be used in this area to control the DHF in the future. Based on resistance pattern of A. aegypti to organophosphate insecticide in Rukun Warga (RW) 01 Pulogadung, we can conclude that organophosphate still can be used in this area to control the DHF in the future.

Deteksi Resistensi Aedes Aesgypti terhadap Insektisida Organofosfat di Pulogadung Jakarta Timur. Demam Berdarah Dengue (DBD) merupakan masalah kesehatan masyarakat di Indonesia. DKI Jakarta merupakan propinsi dengan jumlah penderita DBD terbanyak. Pulo Gadung Jakarta Timur merupakan salah satu daerah endemis DBD dan beberapa wilayah lainnya di DKI merupakan daerah sporadis penyakit tersebut. Strategi pengendalian utama DBD masih ditekankan pada pemberantasan vektornya yaitu Aedes aegypti (A. aegypti). Sampai saat ini insektisida golongan organofosfat adalah insektisida yang telah digunakan lebih dari 25 tahun untuk pengendalian vektor DBD. Penggunaan insektisida tersebut dalam waktu lama dan dosis subletal dapat menginduksi terjadinya resistensi. Pada penelitian ini dilakukan uji microplate dengan ELISA reader untuk mengetahui resistensi serangga terhadap organofosfat. Resistensi diketahui dengan adanya peningkatan aktivitas enzim esterase non spesifik. Pola resistensi A. aegypti terhadap organofosfat di RW 01 Pulogadung menunjukkan hasil sebagai berikut: 23% sangat resisten, 33% resistensi sedang dan 44% sensitif. Hasil ini berkaitan erat dengan rendahnya frekuensi penggunaan obat nyamuk semprot oleh masyarakat (8,8% sampel). Berdasarkan pola resistensi A. aegypti terhadap organofosfat di wilayah Rukun Warga (RW) 01 Pulogadung, kami menyimpulkan bahwa organofosfat masih dapat dipakai dalam pengendalian DBD di wilayah tersebut.