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Maria Fatima Palupi
Balai Besar Pengujian Mutu dan Sertifikasi Obat Hewan, Gunungsindur, Bogor

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Prevalensi dan Tingkat Resistansi Silang Golongan Kuinolon Pada Escherichia coli Asal Usap Kloaka Ayam Layer Hidayah, Nur Nur; Palupi, Maria Fatima; Ariyani, Novida Ariyani; Indryana, Indryana Indryana; Jannah, Anna Miftahul; Komariyah, Siti Komariyah; Sari, Rosana Anita; Ambarwati, Ambarwati Ambarwati; Rusmiati, Emi Rusmiati; Idrishanty, Nafisah Idrishanty; Fanani, Fika Asti
Jurnal Sain Veteriner Vol 42, No 3 (2024): Desember
Publisher : Faculty of Veterinary Medicine, Universitas Gadjah Mada bekerjasama dengan PB PDHI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jsv.92045

Abstract

Escherichia colimerupakan bakteri komensal yang digunakan sebagai parameter monitoring resistansi pada hewan maupun manusia. Selain bersifat komensal, terdapat juga E. coli patogen yang dapatmenginfeksi pada hewan dan manusia. Resistansi E. coli terhadap golongan antibiotik kuinolon berpotensi semakin meningkat. Namun demikian, belum banyak diketahui mengenai tingkat resistansi silang golongan kuinolon pada E. coli patogen khususnya pada ayam layer. Tujuan studi ini adalah untuk mengetahui prevalensi resistansi E. coli pada beberapa jenis kuinolon dan tingkat resistansi silang antar golongan kuinolon dari E. coli asal ayam layer. Sebanyak 360 isolat E. coli asal usap kloaka ayam layer arsip Balai Besar Pengujian Mutu dan Sertifikasi Obat Hewan (BBPMSOH) tahun 2022 dari delapan provinsi diuji kepekaan terhadap siprofloksasin, norfloksasin, enrofloksasin, flumekuin, serta marbofloksasin, dan diuji patogenesitasnya. Uji kepekaan dilakukan dengan menggunakan metode dilusi agar. Prevalensi E. coli resistan terhadap siprofloksasin adalah 45,00% (CI 95%; CI 39,94% - 50,16%), norfloksasin 38,33% (CI 95%; CL 33,46% - 43,45%), enrofloksasin 44,72% (CI 95%; CL 39,67% - 49,89%), flumekuin 42,22%(CI 95%; CL 37,23% - 47,38%), dan marbofloksasin 42,22% (CI 95%; CL 37,23% - 47,38%). Sebanyak 160 (44,44%) merupakan isolat E. coli multiresistan. Tingkatresistansi silang kuinolon dievaluasi dengan statistik kappa (k) berdasarkan resistansi siprofloksasin terhadap norfloksasin, enrofloksasin, flumekuin, dan marbofloksasin. Nilai (k) resistansi silang siprofloksasin terhadap empat kuinolon yang lain adalah 0,86-0,99. Hal ini menunjukkan  tingginya resistansi silang dalam golongan kuinolon. Adanya prevalensi resistansi dan silang kuinolon yang tinggi menunjukkan ancaman yang serius bagi tingkat efikasi antibiotik kuinolon.     
Melacak Gen Faktor Virulensi Escherichia coli yang Tahan terhadap Siprofloksasin asal Usap Kloaka Ayam Petelur Peranginangin, Joen Firmanta; Safika, Safika; Palupi, Maria Fatima
Jurnal Sain Veteriner Vol 42, No 1 (2024): April
Publisher : Faculty of Veterinary Medicine, Universitas Gadjah Mada bekerjasama dengan PB PDHI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jsv.90358

Abstract

Avian Pathogenic Escherichia coli (APEC) is a cause of extraintestinal infections, particularly respiratory infections, pericarditis, and septicemia in poultry (colibacillosis). Research aimed at uncovering the virulence factors responsible for colibacillosis in poultry, especially laying hens in Indonesia, is still quite rare. The purpose of this study is to identify the virulence factors responsible for colibacillosis in E. coli strains resistant to ciprofloxacin. The virulence factors targeted in this research are the genes iss, iutA, iroN, ompT, and hlyF. The study utilized 327 E. coli isolates from the archives of the National Veterinary Drug Assay Laboratory, which were collected in 2021 in seven provinces.All isolates were tested for pathogenicity using Congo Red. Subsequently, E. coli strains determined to be pathogenic were tested for their sensitivity to ciprofloxacin using the agar dilution method. Isolates that were both resistant and pathogenic were then examined for the presence of the virulence genes using polymerase chain reaction (PCR). Based on the results of the Congo Red test, it was found that 59 isolates (18%) were pathogenic E. coli. Among the 54 pathogenic E. coli isolates subjected to sensitivity testing, 30 isolates were found to be resistant to ciprofloxacin. Subsequently, PCR analysis of these 30 ciprofloxacin-resistant pathogenic E. coli isolates revealed the presence of the iss gene in 29 isolates (96%), iutA in 23 isolates (76.6%), ompT in 19 isolates (63.3%), hlyF in 14 isolates (46.6%), and iroN in 11 isolates (36.6%). Eight isolates showed the presence of all five virulence genes, while the rest had one to three virulence genes. This study demonstrates that virulence genes are commonly found in ciprofloxacin-resistant pathogenic E. coli. This suggests a potential threat to the effectiveness of ciprofloxacin in managing colibacillosis in laying hens.