مصطفى محمد عمر عبدالرحيم
Professor of parasitology
عضو هيئة تدريس قار
المؤهل العلمي: دكتوراه
الدرجة العلمية: أستاذ مشارك
التخصص: Parasitology - biological sciences
قسم علوم الحياة - مدرسة العلوم الأساسية
حول مصطفى
استاذ في علم الطفيليات الجزيئية ونواقل الأمراض بقسم علوم الحياة بالاكاديمية الليبية.
المنشورات العلمية
The prevalence of Trichomonas vaginalis among women in Zawia city
Journal ArticleTrichomonas vaginalis is identified as greatest public sexually transmitted disease
Mostafa Mohamed Omar Abdoarrahem, Fawzia Alajeli Alharari Shawesh, (04-2023), Academy Journal For Basic and applied science: Libyan Academy, 5 (1), 1-11
Genetic Identification of Meriones spp. The Reservoir Host of Cutaneous Leishmaniasis in the North Western Region of Libya
Journal ArticleThe identification and classification of reservoir hosts of zoonotic cutaneous leishmaniasis are very crucial towards the integrated management and control planning. Molecular techniques have been deployed and showed very sensitive and specific results to identify and differentiate rodents with great similarity in phenotypes including Meriones spp. Meriones species are very difficult to distinguish and separate according to their morphology and phenotype traits. This study was carried out in western region of Libya and three Meriones rodents were collected and their genetic identification was conducted by PCR technique using designed forward and reverse primers from Meriones spp. cytochrome b (cytb) gene sequence. This study has differentiated three haplotypes of M. shawi. with sequences similarities between samples of haplotypes were 99.13%, 99.42% and 99.71% between H1 and H2, between H1 and H3 and between H2 and H3 respectively. The current work is the first to use molecular techniques to study the genetic sequence of Meriones in Libya and has illustrated that PCR technique is powerful tool to discriminate Meriones species
Mostafa Mohamed Omar Abdoarrahem, ya Noureddin M Rashid (1) , Saleh A Ammar (2) , Ahmad Almabruk (3) , Mostafa MO Abdoarrahem (4) , Abdulla Bashein (5) , Taher Shaibi (6) , Badereddin B Annajar, (10-2022), Senha university: : Fifth International Conference on Science and Technology, 21 (4), 150-159
Indiscriminate ingestion of entomopathogenic nematodes and their symbiotic bacteria by Aedes aegypti larvae: a novel strategy to control the vector of Chikungunya, Dengue and Yellow Fever.
Journal Articlevirulence. Larval mortality was dose dependent for all EPN species. When using a dose of 100 infective juveniles (IJs) per larva, H. bacteriophora and S. carpocapsae caused 90%-100% mortality, whereas H. downesi and S. feltiae caused only 40%-60% mortality. Even when using 200 IJs/larva, H. megidis and S. kraussei caused a maximum of 30%-40% mortality. Some of the invasive EPNs were melanized, suggesting a strong humoral defense response by the Aedes larvae. The degree of melanization was quite variable; some EPNs were totally enveloped in a melanin sheath while others were partially coated with melanin. Melanization did not stop the EPN from multiplying and killing the Aedes larvae. IJs released from infected larvae would have the potential to infect healthy mosquito larvae. Also, both bacterial supernatant and bacterial cell suspension of Xenorhabdus nematophila caused >91% larval mortality after 48 h, whereas only the bacterial cell suspension of Photorhabdus laumondii was effective against the mosquito larvae. These data provides useful information on the potential use of EPNs and/or formulated bacterial cell suspensions in the control of the important urban and container-breeding mosquito, Ae. aegypti, and are a starting point for future simulated and actual field studies.
Keywords
Entomopathogenic nematode (EPN) ingestion, Aedes aegypti, symbiotic bacteria, H. bacteriophora, S. carpocapsae
Mostafa Mohamed Omar Abdoarrahem, (08-2021), Turkey: Turkish journal of zoology, 45 (8), 372-383
Livestock hydatid disease (cystic hydatidosis ) in Libya. A review
Journal Articleinfected organs mainly liver and lungs and to some extent other organs including spleen, kidneys, heart, brain and bones of the animal carcasses. Prevention of cystic hydatid disease primarily focusing on veterinary investigations for controlling the extent and the intensity of echinococcosis in the definitive host populations, which indirectly may lead to control the prevalence of hydatid disease in the intermediate host animals. Treatment of cystic hydatidosis in livestock is still under investigation but anti-helminthes drugs can be used. Regular treatment, taking high degree of precautions when handling pets or dealing with animal meat must be taken into consideration to minimize the level of infection and egg excretion as well as the vaccination of ruminant intermediate hosts, are all in evaluation.
Mostafa Mohamed Omar Abdoarrahem, (05-2016), American Journal of Animal and Veterinary Sciences: https://doi.org/10.3844/ajavsp.2016.70.84, 11 (2), 70-84
Germination genes of Bacillus thuringiensis subsp. Israelensis.
BookBacillus thuringiensis subsp. israelensis is the most important biological insecticide for the control of mosquito vectors of disease. This bacterium produces toxins during sporulation that cause larval death by lysis of cells in their midgut. The pBtoxis plasmid of B. thuringiensis subsp. israelensis encodes all the mosquitocidal toxins and a number of other coding sequences. The plasmid also carries potential germination genes organised in a single ger operon. Comparison of the germination responses of spores from strains with and without pBtoxis revealed that this plasmid could promote activation of the spores under alkaline conditions but not following heat treatment. Introduction of the ger operon on a recombinant plasmid to the plasmidless strain established this operon as the first with an identified role in alkaline activation.
Mostafa Mohamed Omar Abdoarrahem, (06-2015), Germany: LAP Lambert Academic Publishing.,
Genetic basis for alkaline activation of germination in Bacillus thuringiensis subsp. Israelensis
Journal ArticleDifferences in activation between spores from strains of Bacillus thuringiensis subsp. israelensis with and without the toxin-encoding plasmid pBtoxis are demonstrated. Following alkaline activation, the strain bearing pBtoxis shows a significantly greater germination rate. Expression of just three genes constituting a previously identified, putative ger operon from this plasmid is sufficient to produce the same phenotype and characterizes this operon as a genetic determinant of alkaline activation.
Mostafa Mohamed Omar Abdoarrahem, K Gammon, B N Dancer, Colin Bery, (10-2009), Applied and Environmental Microbiology: Applied and Environmental Microbiology, 75 (-19), 6410-6413