Istriyati Istriyati
Laboratorium Embriologi dan Histologi Hewan, Fakultas Biologi Universitas Gadjah Mada, Yogyakarta

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Analisis Pertumbuhan Kartilago Epifisialis Os Tibia Fetus Mencit (Mus musculus L.) Swiss Webster Setelah Induksi Ochratoxin A Selama Periode Organogenesis Setiawan, Arum; Sagi, Mammed; Asmara, Widya; Istriyati, Istriyati
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Publisher : Jurnal Biologi Papua

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Abstract

The aims of this study were determined the effects of Ochratoxin A (OTA) on growth of fetus tibia epiphyseal cartilage during organogenesis period. Twenty four pregnant mice were divided randomly into 4 groups of 6. Ochratoxin A was dissolved in sodium bicarbonateand administered orally on seventh to fourteenth days of gestation at dosage of 0.5, 1.0, 1.5 mg/kg bw, respectively. The remaining were used as control. The fetal tibia was taken after the 18 th day of pregnancy. The growth of tibia epiphyseal cartilages were observed histologically using Erlich’s Haematoxylin-Eosin Stain. The result of this study indicated that OTA caused decreased thickness of the rest zone, proliferative zone, maturation zone and calsification zone of the fetus tibial growth plate significantly.Key words: Ochratoxin A, tibia, cartilage, and thickness
Pertumbuhan dan Perkembangan Otak Fetus Mencit Setelah Induksi Ochratoxin A Selama Periode Organogenesis Setiawan, Arum; Sagi, Mammed; Asmara, Widya; Istriyati, Istriyati
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Publisher : Jurnal Biologi Papua

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Abstract

This experiment was performed to examine the effects of Ochratoxin A (OTA) during organogenesis period on fetuses brain growth and development. Thirty pregnant mice were divided randomly into 5 groups of 6. Ochratoxin A was dissolved in sodium bicarbonate and administered orally on seventh to fourteenth days of gestation at dosage of 0.5, 1.0, 1.5 mg/kg bw, respectively. The remaining animals were used as  an untreated control, and placebo were given by  Sodium Bicarbonate. At the age of 18-day pregnancy, mice were sacrified dan taken its brains. The fetuses brain growth and development  were observed by measure brain weight, cereberum width and length, cerebellum width and length, and the wall thichkness of cerebrum. Result of this studies indicated that OTA caused decreased of brain weight, the length and width of cerebrum and cerebellum, the wall thickness of cerebrum significantly.Key words: Ochratoxin A, brain, cerebrum, cerebellum, mice.
PENGARUH EKSTRAK ETANOL BIJI JARAK (Ricinus communis L.) TERHADAP STRUKTUR HISTOLOGIS TESTIS TIKUS SAWAH (Ratus Argentiventer ROBINSON & KLOSS) Istriyati, Istriyati; Susilowati, Febri
Jurnal Manusia dan Lingkungan (Journal of People and Environment) Vol 15, No 2 (2008)
Publisher : Pusat Studi Lingkungan Hidup Universitas Gadjah Mada

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Abstract

Tikus sawah (Rattus argentivenler Robinson dan Kloss) merupakan jenis hewan mammal yang menimbulkan kerugian besar di sektor pertanian. Selain daya adaptasi yang tinggi terhadap lingkungan, tikus sawah memiliki kemampuan reproduksi yang tinggi dalam waktu singkat, sehingga populasi tikus sawah dapat meningkat dengan cepat Untuk mengatasi hal ini, diperlukan suatu teknik pengendalian, dengan mempengaruhi tingkat fertilitasnya. Biji jarak (Ricinus communis L.) diduga mempunyai efek antifertilitas yang diharapkan dapat mengurangi jumlah populasi tikus sawah. Tujuan penelitian ini adalah untuk mempelajari pengaruh ekstrak biji jarak terhadap struktur mikroskopis testis tikus sawah. Tiga puluh ekor tikus sawah jantan dengan rata-rata berat badan 99,4 g dibagi menjadi 6 kelompok, masing-masing 5 ekor. Satu kelompok kontrol diperlakukan dengan akuabides, 5 kelompok lainnya masing-masing diperlakukan dengan ekstrak etanol biji jarak secara oral dengan metode one way single dose 0.2 ml: 0.4 ml: 0.6 ml: 0.8 ml dan 1.0 ml/100 g bb. Setelah perlakuan tikus sawah dipelihara selama 12 hari. Kemudian tikus dikorbankan dan diambil testisnya untuk dibuat preparat dengan metode parafin, fiksasi dalam larutan Bouin, tebal sayatan 6 um, pewarnaan dengan hematoksilin dan Eosin (HE). Hasil penelitian menunjukkan struktur mikroskopis testis mengalami degenerasi. Uji statistik menunjukkan adanya penurunan secara nyata jumlah spermatogonia, spermatosit dan spermatid testis tikus sawah antara kelompok kontrol dan perlakuan. Makin tinggi dosis, makin tinggi tingkat kerusakan struktur mikroskopis dan jumlah spermatogonia, spermatosit dan spermatid makin sedikit.
Pertumbuhan dan Perkembangan Otak Fetus Mencit Setelah Induksi Ochratoxin A Selama Periode Organogenesis Setiawan, Arum; Sagi, Mammed; Asmara, Widya; Istriyati, Istriyati
JURNAL BIOLOGI PAPUA Vol 5, No 1 (2013)
Publisher : JURNAL BIOLOGI PAPUA

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Abstract

This experiment was performed to examine the effects of Ochratoxin A (OTA) during organogenesis period on fetuses brain growth and development. Thirty pregnant mice were divided randomly into 5 groups of 6. Ochratoxin A was dissolved in sodium bicarbonate and administered orally on seventh to fourteenth days of gestation at dosage of 0.5, 1.0, 1.5 mg/kg bw, respectively. The remaining animals were used as an untreated control, and placebo were given by Sodium Bicarbonate. At the age of 18-day pregnancy, mice were sacrified dan taken its brains. The fetuses brain growth and development were observed by measure brain weight, cereberum width and length, cerebellum width and length, and the wall thichkness of cerebrum. Result of this studies indicated that OTA caused decreased of brain weight, the length and width of cerebrum and cerebellum, the wall thickness of cerebrum significantly. Key words: Ochratoxin A, brain, cerebrum, cerebellum, mice.
Analisis Kuantitatif Sel Purkinje Cerebellum Mencit (Mus musculus L.) setelah Induksi Ochratoksin A Selama Periode Organogenesis Setiawan , Arum; Sagi , Mammed ; Asmara , Widya ; Istriyati, Istriyati
Biota : Jurnal Ilmiah Ilmu-Ilmu Hayati Vol 16, No 2 (2011): June 2011
Publisher : Universitas Atma Jaya Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (195.071 KB) | DOI: 10.24002/biota.v16i2.108

Abstract

Penelitian ini bertujuan mengetahui jumlah sel Purkinje cerebellum anak mencit umur 21 hari (pascasapih) setelah induksi Ochratoksin A selama periode organogenesis. Tiga puluh ekor mencit bunting dibagi secara acak menjadi 5 kelompok perlakuan dengan masing-masing 6 ulangan. Ochratoksin A dilarutkan dalam Sodium Bicarbonat, diberikan secara oral pada saat kebuntingan hari ke 7 sampai hari ke -14. Dosis perlakuan Ochratoksin A adalah 0,5 ; 1,0; 1,5 mg/kg bb dan sebagai kontrol tidak diberi perlakuan, serta kontrol placebo diberi perlakuan pelarut Sodium Bicarbonat. Induk mencit dipelihara sampai melahirkan. Pada umur ke 21 hari (pascasapih), anak mencit dikorbankan dan diambil bagian otaknya. Otak mencit selanjutnya dipreparasi dengan metode parafin dan pewarnaan menggunakan pewarnaan Haematoksilin Eosin. Data jumlah sel Purkinje dianalisis dengan Anava Satu Arah dan dilanjutkan dengan uji DMRT untuk mengetahui beda nyata antar perlakuan. Hasil penelitian menunjukkan bahwa Ochratoksin A yang diberikan pada mencit bunting selama periode organogenesis menyebabkan terhambatnya pertumbuhan jumlah sel Purkinje mencit perlakuan yang ditandai dengan semakin menurunnya jumlah sel Purkinje dibandingkan dengan kontrol dan kontrol placebo.