We describe the course of infection of Cryptosporidium andersoni LI03, originally isolated from cattle, in outbred Gerbillus gerbillus (Lesser Egyptian Gerbil), Meriones unguiculatus (Mongolian gerbil), and Meriones tristrami (Tristram's jird). While both Meriones spp. partially cleared the infection and shed a low number of oocysts (less than 15,000 oocysts per gram (OPG)), chronic infection with a mean infection intensity reaching 200,000 OPG was observed in G. gerbillus. These data suggest that G. gerbillus can be used as a laboratory model for the long-term maintenance and study of C. andersoni without the need for host immunosuppression.
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Ticks Tick Borne Dis
September 2024
Laboratory of Infectious Diseases, Joint Faculty of Veterinary Medicine, Kagoshima University, Kagoshima 890-0065, Japan. Electronic address:
In Egypt, tick-borne diseases pose a significant threat to human and animal health, and the threat to dromedaries (Camelus dromedarius), the country's dominant camelid species, is of particular concern. These animals are frequently infested with ticks, and may thus develop tick-borne diseases or become reservoirs of tick-borne pathogens. However, there is a paucity of data on tick infestation in Egyptian camels, especially in the south of the country.
View Article and Find Full Text PDFAnat Histol Embryol
May 2024
Zoology Department, Faculty of Science, Sohag University, Sohag, Egypt.
One crucial component of the optical system is the ciliary body (CB). This body secretes the aqueous humour, which is essential to maintain the internal eye pressure as well as the clearness of the lens and cornea. The histological study was designed to provide the morphological differences of CB and iris in the anterior eye chambers of the following vertebrate classes: fish (grass carp), amphibians (Arabian toad), reptiles (semiaquatic turtle, fan-footed gecko, ocellated skink, Egyptian spiny-tailed lizard, Arabian horned viper), birds (common pigeon, common quail, common kestrel), and mammals (BALB/c mouse, rabbit, golden hamster, desert hedgehog, lesser Egyptian jerboa, Egyptian fruit bat).
View Article and Find Full Text PDFAnimals (Basel)
December 2023
Secció de Parasitologia, Departament de Biologia, Sanitat i Medi Ambient, Facultat de Farmàcia i Ciències de l'Alimentació, Universitat de Barcelona, Av. Joan XXIII, sn, 08028 Barcelona, Spain.
Ultrastructural characters of spermiogenesis and the mature spermatozoon of the cestode (Cyclophyllidea: Catenotaeniidae), a parasite of the Lesser Egyptian gerbil () and the North African gerbil () (Rodentia: Muridae) in the Djebel Dahar (South of Tunisia), were studied using transmission electron microscopy. The spermiogenesis of is of Bâ and Marchand's type III, which is mainly characterized by a proximodistal fusion of a single flagellum with a cytoplasmic extension. In this catenotaeniid, the proximal fusion is preceded by a 90° rotation of the flagellum.
View Article and Find Full Text PDFiScience
September 2023
Molecular Neuroendocrinology Research Group, Bristol Medical School: Translational Health Sciences, Dorothy Hodgkin Building, University of Bristol, Bristol, England.
Desert animals have evolved systems that enable them to thrive under dry conditions. Focusing on the kidney, we have investigated the transcriptomic adaptations that enable a desert rodent, the Lesser Egyptian Jerboa (), to withstand water deprivation and opportunistic rehydration. Analysis of the whole kidney transcriptome showed many differentially expressed genes in the Jerboa kidney, 6.
View Article and Find Full Text PDFJ Innov Card Rhythm Manag
August 2023
Department of Cardiology, Faculty of Medicine, Al-Azhar University, Cairo, Egypt.
Heart block (HB) is one of the most serious arrhythmias. Higher degrees of HB-for example, trifascicular HB-result in a more intense patient condition. Atrial septal defects (ASDs) represent the most common congenital heart disease in adults.
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