Pengaruh Pemberian Kopi Instan Oral Terhadap Kadar Asam Urat pada Tikus Wistar
Abstract
Abstrak
Kopi merupakan salah satu minuman yang paling banyak dikonsumsi di dunia. Banyak studi yang meneliti efek konsumsi kopi terhadap berbagai kondisi medis tertentu. Salah satu efek dari kopi yang masih menjadi kontroversi adalah efek terhadap penurunan kadar asam urat. Kandungan polifenol dalam kopi diduga dapat menghambat kerja xantin oksidase sehingga menurunkan kadar asam urat. Tujuan penelitian ini adalah untuk menentukan pengaruh pemberian kopi oral terhadap kadar asam urat serum pada tikus wistar. Ini adalah penelitian eksperimental dengan rancangan post test only control group design. Sampel penelitian adalah 24 ekor tikus putih jantan (Rattus novergicus) yang dibagi menjadi 4 kelompok yaitu kelompok kontrol, perlakuan 1, perlakuan 2 dan perlakuan 3. Kontrol hanya diberi diet standar tanpa kopi, perlakuan 1diberikan diet kopi dosis rendah setara 3 cangkir kopi (0,39 mg/3 ml), perlakuan 2 diberikan diet kopi dosis sedang setara 6 cangkir kopi (0,78 mg/ 3ml), perlakuan 3 diberikan diet kopi dosis tinggi setara 10 cangkir kopi (1,3 mg/ 3ml) selama 4 minggu (28 hari). Pengukuran kadar asam urat serum menggunakan spektofotometer. Hasil penelitian didapatkan rerata kadar asam urat serum kontrol (2,26+0,16 mg/dl), perlakuan 1 (2,24+0,89 mg/dl), perlakuan 2 (1,00+0,33 mg/dl), perlakuan 3 (1,96+0,43 mg/dl). Uji analisis one way Anova dan Post hoc menunjukkan bahwa perbedaan yang bermakna hanya terdapat pada perbandingan kelompok kontrol dengan kelompok perlakuan 2 dan antara kelompok perlakuan 1 dengan kelompok perlakuan 2 (p<0,05). Kesimpulan dari penelitian ini adalah terdapat penurunan kadar asam urat serum setelah pemberian kopi dan terdapat perbedaan bermakna kadar asam urat antara kelompok kontrol dan perlakuan 1 dengan kelompok perlakuan 2.
Kata kunci: kopi, polifenol, asam urat serum
Abstract
Coffee is one of the most frequently consumed beverages in the world. Many studies have examined the effect of coffee consumption on a wide range of specific medical condition. One of the effects of coffee that still a controversy is the effect of the reduction in uric acid levels because the polyphenol in coffee could be expected to inhibit xanthine oxidase to lower uric acid level. The objective of this study was to determine the effect of coffee on uric acid levels Wistar strain of rats (Rattus novergicus). This was a experimental study with posttest only control group design. Samples were 24 male white rats strain Wistar divided into 4 groups: control, treatment 1, treatment 2, and treatment 3. Control was not treat with coffee, treatment 1 were given low dose of coffee equivalent to 3 cups (0,39 mg/3 ml), treatment 2 were given moderate dose of coffee equivalent to 6 cups (0,78 mg/ 3ml), treatment 3 were given high dose of coffee equivalent to 10 cups (1,3 mg/ 3ml) for 4 weeks (28 days). Serum uric acid levels measured with sphectrophotometer The result showed the mean of uric acid levels control (2,26+0,16 mg/dl), treatment 1 (2,24+0,89 mg/dl), treatment 2 (1,00+0,33 mg/dl), treatment 3 (1,96+0,43 mg/dl). One way Anova dan Post hoc tests analysis showed significant differences of uric acid levels only between control and treatment 2 group and between treatment 1 group and treatment 2 group (p<0,05). The conclusion of this study is reduction of uric acid levels after coffee consumption and the significant differences in uric acid levels between control/treatment 1 group with treatment 2 group.
Keywords: coffee, polyphenol, uric acid levels
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PDFDOI: http://dx.doi.org/10.25077/jka.v3i3.195
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