AbstrakPenelitian ini dirancang untuk mengetahui pengaruh fraksi air G. lucidum dalam menurunkan kadar glukosa darah dan ekspresi p53 pada jaringan pankreas tikus diabetes yang diinduksi aloksan. Tiga puluh enam tikus dibagi menjadi enam kelompok yaitu normal, diabetes, glibenklamid dan tiga dosis fraksi air pengobatan kelompok G. lucidum (225, 450, dan 675 mg / KgBB). Tikus diabetes diinduksi aloksan intraperitoneal pada dosis 150 mg / KgBB. Keadaan diabetes terjadi pada hari ke-3 setelah pemberian aloksan dan menunjukkan peningkatan kadar darah sampai 274,00 ± 15,11 mg / dL. Pemberian oral fraksi air G. lucidum dan glibenklamid selama 9 hari setelah kondisi diabetes secara signifikan mengurangi kadar glukosa darah (P <0,05). Pada hari ke-10 setelah pengobatan, tikus yang dimatikan dan jaringan pankreas diambil untuk pengujian Haematoxyllin eosin. Hasil penelitian menunjukkan bahwa fraksi air G. lucidum menghambat apoptosis sel β. Perubahan morfologi jaringan pankreas dalam keadaan diabetes secara signifikan menurun dan berubah menjadi keadaan normal setelah pemberian berulang fraksi air G. lucidum. Kata kunci: fraksi air G. lucidum, Aloksan monohidrat, Diabetes melitus AbstractThe present study was designed to investigate the influence of water fraction of G. lucidum toward lowering blood glucose level and p53 expression in pancreatic tissues in alloxan-induced diabetic rat. Thirty six rats were divided into six groups i.e. normal, diabetic, glibenclamide and three dosage of treatment water fraction of G. lucidum groups (225, 450, and 675 mg/KgBW). Diabetic rats were induced by alloxan monohidrate intra peritoneally at the dose of 150 mg/KgBW. Diabetic state occurred on the 3rd day after alloxan administration and it was showed increasing blood level until 274.00 ± 15.11 mg/dL. Orraly administrations of water fraction of G. Lucidum and glibenclamide for 9 days after diabetic condition were significantly reduce of blood glucose level (P<0.05). At the day 10th after treatment, rats were sacrified and the pancreatic tissues were harvested for Haematoxyllin eosin. The results showed that water fraction of G. lucidum inhibit the β cell apoptotic. The morphological change of pancreas tissue in a diabetic state was significantly decreased and turned into normal state after repeated administration of water fraction of G. Lucidum. Keywords : Water fraction of G. Lucidum, Alloxan Monohidrat, Diabetes Mellitus
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