1Department of Zoology, Faculty of Science, Omar Al-Mukhtar University, Al-Bayda, Libya
2Zoology Department, Faculty of Science, Ain Shams University
3Department of Clinical Veterinary Medical Sciences, Faculty of Veterinary Medicine, Omar Al-Mukhtar University, Al-Bayda, Libya.
4Zoology department, Faculty of Science, Ain Shams University, Cairo, Egypt
5Department of Botany, Faculty of Girls, Ain Shams University, Cairo, Egypt
Abstract
Background: Camel milk is an excellent source of nutrients and has medicinal importance for human in many countries all over the world especially in nomadic societies of Arab countries. Staphylococcus aureus (S. aureus) is instinctively present in milk and dairy products, and associated with many outbreaks. Milk is a good substrate for S. aureus rise and toxin production. When transmitted to human body this pathogen may affect skin, brain, kidney, liver and several other vital organs. Therefore, the pathological effects of S. aureus have been the focus of several recent research works. Aim: The purpose of this study was to better understand the histopathological effects of S. aureus isolated from contaminated raw camel milk on the mice livers. Materials and Methods: S. aureus were isolated from specimens of lactating she-camels (Camelus dromedarius), weighing 300-540 kg, in Libya and identified using microbiological and molecular techniques. Twenty healthy male Swiss albino mice, weighing 22-25 gm, were divided into two groups; Group I (control) and Group II (orally administrated mice with a single dose of aqueous solutions of the isolated S. aureus at a concentration of 5x108/0.1ml). Animals sacrificed after three days of infection with bacteria and their livers were dissected out for macro- and microscopic inspection. Results: Our study reported that oral administration with S. aureus collected from camel milk causes outer liquid-filled liver abscesses. Furthermore, various histopathological changes could be detected. Conclusion: This study may highlight the potential risk of consuming raw she-camel milk, especially upon lack of strict hygienic and preventative measures to avoid the presence of S. aureus in milk.
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