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All Journal Majalah Kedokteran Bandung Althea Medical Journal
Diah Dhianawaty
Fakultas Kedokteran, Universitas Padjadjaran
Medicine & Pharmacology

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Journal : Althea Medical Journal

 1 
Larvicidal Effects of Tithonia diversifolia (Hemsley) A. Gray Leaf Water Extract against Culex sp. Larvae Abdurrachman, Hasan Ali; Dhianawaty, Diah; Syarifah, Neneng
Althea Medical Journal Vol 2, No 1 (2015)
Publisher : Althea Medical Journal

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  Background: There are various vector mosquitoes that cause filariasis such as Culex sp. Controlling the number of vectors with larvacide can reduce the spread of this disease. The extracts of Tithonia diversifolia (Hemsley) A. Gray leaves are known to have larvicidal effects on Aedes aegypti larvae. The purpose of this study is to determine the larvicidal effects of Tithonia diversifolia (Hemsley) A. Gray leaf water extract against Culex larvae.Methods: This was an experimental study conducted during the period of October to November 2012 at the Laboratory of Biochemistry, Faculty of Medicine, Universitas Padjadjaran. First trials were conducted to find the most effective larvicidal concentration of Tithonia diversifolia (Hemsley) A. Gray leaf water extract in killing 25 Culex larvae. A concentration of 100 ml was decided as the testing concentration which would be compared to a positive control containing Abate® and a negative control containing distilled water. The number of dead larvae was calculated every hour for 48 hours.Results: Effective larvicidal concentration of Tithonia diversifolia (Hemsley) A. Gray leaf water extract was 60% (p=0.000 compared to negative control), which was lower than Abate®. Result also showed LC50 and LC90 of 24% and 42%, respectively.Conclusions: Tithonia diversifolia (Hemsley) A. Gray leaf water extract has a larvicidal effect on  Culex sp. larvae, although it is not as effective as Abate®, Hence, this leaf may be used as an alternative larvacide as these plants are easily available in the community and inexpensive.Keywords: Culex sp., filariasis, larvacide, Tithonia diversifolia (Hemsley) A. GrayDOI: 10.15850/amj.v2n1.441
Larvacidal Effect of Imperata Cylindrical Root Decoction against Culex sp. Larvae Resi, Afini Tiara; Dhianawaty, Diah; Syarifah, Neneng
Althea Medical Journal Vol 1, No 2 (2014)
Publisher : Althea Medical Journal

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Background: Filariasis is one of the neglected tropical diseases. About 337 of 401 districts in Indonesia are endemic areas for filariasis, especially in Sumatera,  Kalimantan, and Papua. Culex sp. is one of the lymphatic filariasis vectors which can be controlled by insecticide, including larvacide. This study was conducted to determine the larvacidal effect of Imperata cylindrical root decoction against Culex sp. larvae.Methods: This study was conducted at the Laboratory of Parasitology, Faculty of Medicine, Universitas Padjadjaran during the period of September to November 2012. The study object was Culex sp. larvae III/IV instars. The design of this study was experimental laboratory using true experimental approach. The larvae were divided into three groups: negative control (distilled water), reference (Abate®), and decoction. The number of larvae in each group was 25 larvae, and the effects were evaluated by the total number of dead larvae in 48 hours under observation. The data were then analyzed by Mann-Whitney test and Probit test.Results: The result of the Mann-Whitney test to compare Imperata cylindrica root decoction treatment to distilled water as control  was significant (p<0.05). However, Abate® gave a better result. The Probit test resultwas LC50:  63% and LC90: 489%.Conclusions: Imperata cylindrical root decoction has a larvacidal effect against Culex sp. larvae.Keywords: Culex sp., Filariasis, Imperata cylindrica (L.) Beauv., Larvacidal, LC50  Pengaruh Larvasida Rebusan akar alang-alang (Imperata Cylindrical) terhadap Larva Nyamuk (Culex sp.) AbstrakLatar Belakang: Filariasis merupakan salah satu penyakit tropis yang terabaikan. Sekitar 337 dari 401 kabupaten di Indonesia adalah daerah endemik untuk filariasis terutama di Sumatera, Kalimantan, dan Papua.  Nyamuk (Culex Sp.) adalah salah satu vektor filariasis limfatik yang dapat dikendalikan oleh insektisida, termasuk larvasida. Penelitian ini dilakukan untuk mengetahui pengaruh larvasida dari rebusan  akar alang-alang terhadap larva nyamuk (Culex sp.)Metode: Penelitian ini dilakukan di Laboratorium Parasitologi, Fakultas Kedokteran, Universitas Padjadjaran selama periode September-November 2012. Objek penelitian adalah larva nyamuk (Culex sp.) instar III / IV.. Desain penelitian ini adalah eksperimental laboratoris dengan menggunakan pendekatan eksperimental yang benar. Larva dibagi menjadi tiga kelompok: kontrol negatif (air suling), referensi (Abate®), dan rebusan. Jumlah larva dalam setiap kelompok adalah 25 larva, dan efek dievaluasi dengan jumlah total larva mati dalam 48 jam di bawah pengawasan. Data kemudian dianalisis dengan uji Mann-Whitney dan uji Probit. Hasil: Hasil uji Mann-Whitney untuk membandingkan pemberian rebusan akar alang-alang (Imperata cylindrica) terhadap air suling sebagai kontrol adalah signifikan (p <0,05). Namun, Abate® memberikan hasil yang lebih baik. Hasil tes Probit adalah LC50: 63% dan LC90: 489%.Simpulan: Rebusan akar alang-alang (Imperata cylindrical) memiliki efek larvsidal terhadap larva nyamuk (Culex sp.) Kata kunci: Nyamuk (Culex sp.), Filariasis, Alang-alang (Imperata cylindrica (L.) Beauv), Larvasida, LC50 DOI: 10.15850/amj.v1n2.349
Oropharyngeal Colonization by Streptococcus pneumoniae among Medical Students in Indonesia Valencia, Stella; Mulyana, Yanti; Dhianawaty, Diah
Althea Medical Journal Vol 3, No 3 (2016)
Publisher : Althea Medical Journal

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Background: Streptococcus pneumoniae may colonize the upper respiratory tract without causing any symptoms. Medical students may be inhabited by these bacteria and transmit them to patients who were prone to infections. Streptococcus pneumoniae resistance to antibiotics was recently reported. This study was conducted to determine whether there was Streptococcus pneumoniae colonization among Medical Students of the Faculty of Medicine Universitas Padjadjaran Batch 2011 and analyze its susceptibility patterns towards several antibiotics.Methods: A descriptive study was conducted involving 75 Medical Students of the Faculty of Medicine Universitas Padjadjaran Batch 2011 that met the selection criteria. After informed consent, oropharyngeal throat swab was taken and further identification was carried out. Once Streptococcus pneumoniae colony was identified, susceptibility testing would be performed.Results: The identification results indicate that 7 students (9%) were colonized by Streptococcus pneumoniae. The susceptibility test showed that out of 7 isolates, 2 were resistant to 1 antibiotic, 1 was resistant to 2 antibiotics, and 4 were resistant to 3 antibiotics. Meanwhile, Streptococcus pneumoniae was resistant to trimethoprim-sulfamethoxazole (71%), oxacillin (71%), erythromycin (57%), and levofloxacin (14%).Conclusions: Streptococcus pneumoniae colonization is found among medical students. All Streptococcus pneumoniae are resistant to one or more antibiotics, mostly to trimethoprim-sulfamethoxazole and oxacillin. [AMJ.2016;3(3):349–54] DOI: 10.15850/amj.v3n3.878 
Effects of Ageratum conyzoides Leaf Decoction on Glucose Absorption in Rat’s Small Intestine Sakinah, Siti; Dhianawaty, Diah; Tarawan, Vita Murniati
Althea Medical Journal Vol 5, No 3 (2018)
Publisher : Althea Medical Journal

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (610.403 KB) | DOI: 10.15850/amj.v4n3.1611

Abstract

Background: Obesity is one of the health problems caused by excessive glucose intake which exceeds normal body requirement. To prevent health problems, Indonesian natives used traditional herbs, such as Ageratum conyzoides (billygoat weeds). The study aimed to discover the effect of Ageratum conyzoides leaf decoction on glucose absorption in the small intestine of rats.Methods: An experimental study was conducted at the Biochemical Laboratory of Faculty of Medicine, Universitas Padjadjaran. Two groups of six rats were given Ageratum conyzoides leaf decoction with dosages 0.89 and 1.33 g/kgbw respectively. Each rat was given glucose solution as a control, decoction administration along with the glucose solution, and glucose solution again to discover the effect of decoction in the absorption function after the administration of decoction was discontinued. Glucose absorbed by the intestine was measured every 15 minutes in 1 hour after the administrationof the solution.Results: Glucose absorption was impeded in dosage 1 and 2 with a mean of the gap between glucose absorbed concentration before given decoction and after given decoction were 73.97 and 45.09 mg/dl respectively. Analysis using paired t-test resulted in insignificant meaning (p-value of dosage 0.89 g/kgbw=0.08; p-value of dosage 1.33 g/kgbw=0.06). In the last glucose perfusion, absorption increased in both dosages after administration of decoction was discontinued.Conclusions: Ageratum conyzoides leaf decoctioncan inhibit the glucose absorption in the small intestine but is not statistically significant. Further investigation may be needed  by using a higher concentration of Ageratum conyzoides and/or other filtration methods.
Co-Authors - Ruslin - Setiawan, - Adreanus A Soemardji Afini Tiara Resi Andreanus A. S Anna Martiana Balafif, Felisha Febriane Endang Sutedja Hasan Ali Abdurrachman, Hasan Ali Iwang Soediro Kosasih Padmawinata Mieke Hemiawati Satari MUCHTAN SUJATNO Neneng Syarifah, Neneng Pricilla Purushothman Ramdan Panigoro Reti Hindritiani Samsudin Surialaga Siti Sakinah, Siti Valencia, Stella Vita Murniati Tarawan Yanti Mulyana