Abstract. The polymorphisms in the Plasmodium falciparum multidrug resistance 1 (pfmdr1) and P. falciparum chloroquine resistance transporter (pfcrt) genes, which are associated with chloroquine resistance, were examined in 48 P. falciparum isolates from uncomplicated malaria patients from the West Lombok District in Indonesia. The point mutation N86Y in pfmdr1 was present in 35.4% of the isolates and mutation K76T in pfcrt was found in all but one of the samples studied. Identified pfcrt haplotypes were mainly identical to the Papua New Guinea type S agt VMNT (42 of 48, 87.5%), and a few isolates had the Southeast Asia type CVIET (5 of 48, 10.4%). Moreover, one P. falciparum isolate harbored the K76N mutation, giving rise to the haplotype CVMNN, which was not previously reported in field isolates. Our findings suggest that chloroquine resistance in this area might have the same origin as in Papua New Guinea.
Penelitian ini bertujuan untuk mengetahui pengaruh perendaman bakteriosin asal Streptococcus bovis isolat 9A sebagai biopreservatif pada daging sapi ditinjau dari uji Eber. Penelitian dimulai dari persiapan kultur isolat 9A dan dilanjutkan dengan produksi bakteriosin kasar, persiapan sampel dan aplikasi bakteriosin sebagai biopreservatif. Hasil penelitian menunjukkan bahwa perendaman daging dalam bakteriosin 5 menit, 10 menit dan tanpa bakteriosin berpengaruh terhadap kualitas daging berdasarkan uji Eber. Pada penelitian ini dapat disimpulkan bahwa perendaman daging dalam bakteriosin asal Streptococcus bovis isolat 9A mampu memperpanjang masa simpan daging sapi.
Aktivitas tubuh seperti latihan yang intensif berlebih menyebabkan tubuh membutuhkan oksigen sangat banyak, sehingga memicu timbulnya radikal bebas yang dapat merusak berbagai organ salah satunya hati. Guna mencegah kerusakan sel-sel hati akibat radikal bebas, diperlukan usaha-usaha untuk memberikan asupan antioksidan dari luar. Salah satunya adalah kulit pisang kepok. Penelitian dilakukan untuk mengetahui perubahan kadar Alanin Aminotransferase (ALT), Aspartat Aminotransferase (AST) serta gambaran histologi hati tikus putih yang diberikan ekstrak kulit pisang kepok serta latihan fisik intensif. Penggunakan 27 ekor tikus yang terbagi atas 3 kelompok, perlakuan diberikan selama 28 hari. Sampel darah dan organ hati diambil pada hari ke-29. Sampel darah diuji menggunakan metode fotometrik sedangkan sampel hati diperiksa melalui preparat histologi dengan metode pewarnaan hematoksilin eosin (HE). Data hasil penelitian diuji menggunakan sidik ragam (ANOVA) dan dilanjutkan dengan uji Duncan. Hasil penelitian menunjukan pemberian ekstrak kulit pisang kepok pada tikus putih yang diberikan latihan intensif renang berpengaruh nyata dapat menurunkan kadar ALT, AST, dan dapat mengurangi terjadinya degenerasi dan nekrosis hati. Hasil penelitian dapat disimpulkan bahwa ekstrak kulit pisang kepok dapat mencegah kerusakan hati akibat latihan fisik intensif.
AbstrakPencegahan kerusakan jaringan pankreas akibat radikal bebas pada kondisi hiperglikemia kronik sangat penting dan vitamin E dapat bertindak sebagai pemusnah radikal bebas dalam mencegah perkembangan diabetes melitus. Tujuan penelitian ini untuk mengamati pengaruh vitamin E pada kondisi hiperglikemia pada aktivititas enzim superoxide dismutase (SOD), glutathione peroxidase (GPx), dan kadar malondialdehyde (MDA) pada jaringan pankreas tikus. Penelitian dilakukan di Laboratorium Biokimia Fakultas Kedokteran Hewan Universitas Udayana, tahun 2010. Sebanyak 15 ekor tikus putih jantan strain Spraque Dawley umur 3 bulan digunakan dalam penelitian ini. Tikus percobaan dibagi menjadi tiga kelompok perlakuan. Kelompok kontrol negatif (K0), kelompok tikus hiperglikemia (K1), serta kelompok tikus hiperglikemia dan diberi vitamin E dosis 7 mg/200 g bb/hari (K2). Kelompok hiperglikemia diberi larutan 50% glukosa, dosis 1,5 cc/ekor per oral dua kali sehari. Perlakuan diberikan selama 1 bulan. Kadar glukosa darah diperiksa menggunakan metode biosensor glukosa oksidase. Enzim SOD, GPx, dan MDA dianalisis menggunakan metode spektrofotometri. Kadar glukosa darah perlakuan K2 sebesar 153,5±8,2 mg/dL tidak berbeda (p>0,05) bila dibandingkan dengan perlakuan K1 sebesar 154,1±5,7 mg/dL. Aktivitas SOD perlakuan K2 sebesar 43,21±3,32 U/g lebih tinggi dibandingkan dengan perlakuan K1 sebesar 31,99±3,55 U/g (p<0,05). Aktivitas GPx perlakuan K2 sebesar 10,44±0,54 U/g tidak berbeda bermakna (p>0,05) bila dibandingkan dengan perlakuan K1 sebesar 9,39±0,59 U/g. Kadar MDA perlakuan K2 sebesar 20,27±0,87 pmol/g lebih rendah dibandingkan dengan perlakuan K1 sebesar 25,24±0,82 pmol/g (p<0,05). Simpulan, kadar SOD dan GPx rendah, sedangkan kadar MDA tinggi pada pankreas tikus dalam kondisi hiperglikemia. Pada tikus hiperglikemia yang diberi vitamin E, aktivitas SOD dan GPx tinggi, sedangkan kadar MDA rendah.[MKB. 2011;43(2):72-6].Kata kunci: Enzim antioksidan, hiperglikemia, pankreas tikus, vitamin E Hiperglycemic and Vitamin E Effect on Malondialdehyde and Antioxidant Intracellular Enzyme in Rat Pancreatic Tissue AbstractPrevention of pancreatic tissue damage by free radicals under conditions of hyperglycemia chronic would be important and vitamin E can act as scavengers of these oxygen radicals in preventing the development of diabetes mellitus. This study aims was to evaluate the effect of vitamin E on the hyperglycemia conditions on the blood glucose, enzyme superoxide dismutase (SOD), glutathione peroxidase (GPx), and malondialdehyde (MDA) levels in rat pancreatic tissue. Research conducted at the Laboratory of Biochemistry Faculty of Veterinary Medicine Udayana University, in 2010. A total of 15 male rats white of strains Spraque Dawley old 3 months used in this study. All of rats were divided into three groups. Negative control group (K0), group of rats hyperglycemia (K1), and group of hyperglycemia and given vitamin E dose of 7 mg/200 g bw/day (K2). Hyperglycemia group was given 50% glucose solution doses of 1.5 cc/head orally twice d...
Streptococcus is a Gram-positive coccus from the family Streptococcaceae that can be found normally in some healthy animal but can cause a disease as well. The purpose of this research is to know the hemolysis profile from pig’s tonsil swab isolated from the traditional pig slaughterhouse at Punggul Village and Bongkasa Village that can be divided into three hemolytic profile; alpha-hemolytic, beta hemolytic, and gamma hemolytic, to know the pathogenicity. This research is divided into several steps, such as; isolating the swab, Gram test, catalase test, oxidase test, and hemolysis test on Sheep Blood Agar. Streptococcus is a Gram-positive coccus, tested Gram positive, catalase negative and oxidase positive. This research concludes the amount of positive Streptococcus sp sample based on hemolysis profile is 6 of 24 samples, whereas 3 of 24 samples (12,5%) has ? hemolysis pattern, 3 of 24 samples (12,5%) has ? hemolysis pattern and none showed the ? pattern. The conclusion from the table; showed positive sample of Streptococcus sp is divided 50:50 for the ? and ? hemolysis, and no sample showed the ? pattern. At most cases, the ? and ? hemolysis Streptococcus is a pathogen bacterium. This data might be useful for references to see the transmission of Streptococcus sp in swine at Abiansemal area in Badung, Bali
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