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أ.د رويدا عبدالحكيم عبدالجابر عبدالحكيم

أستاذ

أستاذ بقسم علم الحيوان

كلية العلوم
مبني 5، الدور الثالث، مكتب رقم 105
المنشورات
مقال فى مجلة
2026

Integrative In Vivo and Transcriptomics-Guided In Silico Profiling of Citrus sinensis Phytochemicals as Multi-Target Anticoccidial Agents

Coccidiosis, caused by Eimeria species, is a parasitic disease responsible for intestinal injury, oxidative stress, and significant economic losses in animal production. The increasing emergence of anticoccidial drug resistance has intensified the search for effective plant-derived alternatives. This study evaluated the in vivo anticoccidial activity of Citrus sinensis leaf extract (CSLE) against Eimeria papillata infection in mice and investigated its potential molecular mechanisms through integrated transcriptomic, molecular docking, and ADMET analyses. GC–MS profiling identified 43 phytochemicals, from which major compounds were prioritized based on abundance, docking affinity, active-site interactions, and pharmacokinetic safety predictions. In vivo treatment of infected C57BL/6 mice with CSLE (150, 300, and 600 mg/kg) significantly reduced oocyst shedding in a dose-dependent manner, with the highest dose decreasing counts to 9.8 × 106 oocysts/g and improving body weight gain and jejunal histology. Transcriptomic analysis indicated that parasite persistence was associated with suppression of host IFN-γ signaling, whereas CSLE partially restored immune responsiveness. Molecular docking demonstrated strong binding of Cholestan-3-ol, Estra-1,3,5(10)-trien-17β-ol, and a secoyohimban derivative to CDPK1, PKG, and HSP90, exceeding amprolium affinity. ADMET analysis supported favorable safety and pharmacokinetic properties. Overall, CSLE showed strong dose-dependent anticoccidial activity through multiple mechanisms, highlighting its potential as a natural alternative for coccidiosis control. 

اسم الناشر
Biomedical Chromatography
رقم المجلد
40
رقم الانشاء
7
الصفحات
e70501
مزيد من المنشورات
publications

Coccidiosis, caused by Eimeria species, is a parasitic disease responsible for intestinal injury, oxidative stress, and significant economic losses in animal production. The increasing emergence…

بواسطة Esam M Al-Shaebi, Seifeldin Elabed, Simeon Santourlidis, Hend M Alharbi, Mohamed A Dkhil, Rewaida Abdel-Gaber
2026
تم النشر فى:
Biomedical Chromatography
publications

Background – Coccidiosis is a major parasitic disease caused by Eimeria species that induces intestinal damage, oxidative stress, and impaired nutrient absorption. The risk associated with drug…

بواسطة Mohammed I Alquraishi, Esam M Al-Shaebi, Chinnadurai Veeramani, Ahmed S El Newehy, Khalid S Al-Numair, Mohammed A Alsaif, Saleh Al Quraishy, Rewaida Abdel-Gaber ,*
2026
تم النشر فى:
Front. Cell. Infect. Microbiol.
publications

Domestic pigeons ( Columba livia domestica ) are potential reservoirs of opportunistic yeasts that may pose health risks to humans, particularly in urban environments. This study aimed to…

بواسطة Mohammed Albeshr, Fatimah Al-Otibi, Rajwa Alsharief , Rewaida Abdel-Gaber
2026
تم النشر فى:
Revista Argentina de Microbiología