Marwa Omar
Faculty of Medicine, Zagazig University, Egypt.
Analytical, visionary medical professional with outstanding research and
academic abilities. A dedicated and competent Medical Parasitologist, highly
experienced in the research and practice of parasitological analysis. Adept at
research, decision making, diagnostics, laboratory techniques, tropical disease
cause, and control. Well informed about changes, research and advances in the
fields of Medical Parasitology and Microbiology.
Address: Faculty of Medicine, Zagazig University, Egypt
Analytical, visionary medical professional with outstanding research and
academic abilities. A dedicated and competent Medical Parasitologist, highly
experienced in the research and practice of parasitological analysis. Adept at
research, decision making, diagnostics, laboratory techniques, tropical disease
cause, and control. Well informed about changes, research and advances in the
fields of Medical Parasitology and Microbiology.
Address: Faculty of Medicine, Zagazig University, Egypt
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Videos by Marwa Omar
This video focuses on two major parasites:
Ectoparasite: House dust mites and
Endoparasite: Paragonimus westermani fluke.
Let’s watch the video to learn more about them.
• Introduction to medical entomology
• Medical importance of Arthropods.
• Classification of Arthropods.
• Mosquitos bionomics.
• Mosquitos Medical importance.
• Control of Mosquitos.
• Sand fly life cycle, Bionomics and Medical importance.
Staff member: Dr. Marwa Omar
Teaching Documents by Marwa Omar
Unlike the American species (T. cruzi), Trypanosoma brucei is known for its pleomorphic nature. The blood stage of the protozoan undergoes morphological differentiations, which play a vital role in setting the parasitaemia waves in the mammalian host.
Modes of Transmission:
The main mode of transmission is person-to-person by sexual contact with someone who is already infested. Fomites (bedding, clothing) may play a minor role, although rare.
Although these lice are normally found in the pubic or perianal area, they may also be found on hairs in the armpit, moustache, chest and eyelashes. An accurate diagnosis of the type of lice found on eyebrows or eyelashes is important for proper treatment.
1. The difference between Cysticercous bovis and Cysticercous cellulose.
2. Taenia Mature segment.
3. Taenia Egg.
4. Taenia gravid segments.
5. Taenia scolices.
- Adult worm.
- Egg stage.
- Cercaria.
- Encysted metacercaria in-between fish muscles.
- Fasciola gigantic adult.
- Fasciola hepatic adult.
- Fasciola immature stages, and
- Fasciola egg.
1. Schistosoma haematobium adult male.
2. Schistosoma haematobium adult female.
3. Schistosoma haematobium Egg stage.
4. Schistosoma Cercaria.
There is no surveillance for the infection, so the epidemiology is not completely known.
It is an obligatory predator which feeds on bacteria, red blood cells and vaginal epithelium, and gets phagocytosed by macrophages.
This video focuses on two major parasites:
Ectoparasite: House dust mites and
Endoparasite: Paragonimus westermani fluke.
Let’s watch the video to learn more about them.
• Introduction to medical entomology
• Medical importance of Arthropods.
• Classification of Arthropods.
• Mosquitos bionomics.
• Mosquitos Medical importance.
• Control of Mosquitos.
• Sand fly life cycle, Bionomics and Medical importance.
Staff member: Dr. Marwa Omar
Unlike the American species (T. cruzi), Trypanosoma brucei is known for its pleomorphic nature. The blood stage of the protozoan undergoes morphological differentiations, which play a vital role in setting the parasitaemia waves in the mammalian host.
Modes of Transmission:
The main mode of transmission is person-to-person by sexual contact with someone who is already infested. Fomites (bedding, clothing) may play a minor role, although rare.
Although these lice are normally found in the pubic or perianal area, they may also be found on hairs in the armpit, moustache, chest and eyelashes. An accurate diagnosis of the type of lice found on eyebrows or eyelashes is important for proper treatment.
1. The difference between Cysticercous bovis and Cysticercous cellulose.
2. Taenia Mature segment.
3. Taenia Egg.
4. Taenia gravid segments.
5. Taenia scolices.
- Adult worm.
- Egg stage.
- Cercaria.
- Encysted metacercaria in-between fish muscles.
- Fasciola gigantic adult.
- Fasciola hepatic adult.
- Fasciola immature stages, and
- Fasciola egg.
1. Schistosoma haematobium adult male.
2. Schistosoma haematobium adult female.
3. Schistosoma haematobium Egg stage.
4. Schistosoma Cercaria.
There is no surveillance for the infection, so the epidemiology is not completely known.
It is an obligatory predator which feeds on bacteria, red blood cells and vaginal epithelium, and gets phagocytosed by macrophages.
The characteristic diagnostic outer wrinkled ecto-cyst can be clearly seen in the biopsy section.
parasite, infects another, the host, and the parasite does some measure of harm to the host while itself deriving a benefit. Parasitism is
not rare—as we shall see in this book, parasitism is one of the most
common lifestyles on earth. As such, the study of parasitism can teach us a great deal about life in general.
worm, although it is usually restricted to
the parasitic worms. The term does not
refer to any one zoological taxon but those
members parasitic in humans belong
almost entirely to two main groups; the
phylum Platyhelminthes, which includes
the trematodes (flukes) and the cestodes
(tapeworms), and the phylum Nematoda,
comprising the nematodes (roundworms).
Keywords: extracellular traps; protozoa; innate immunity; NETosis; helminths; neutrophils; DNA
Materials and Methods: The study was conducted on 100 Swiss albino mice which were infected with the avirulent (ME49) Toxoplasma gondii strain. Mice were equally divided into 5 groups: (GI): Infected untreated control group; (GII): Infected and treated by spiramycin; (GIII): Infected and treated by vitamin D3; (GIV): Infected and treated by nitazoxanide and (GV): Infected and received a (vitamin D3 –nitazoxanide) combination. The therapeutic impacts of drugs were assessed using; parasitological, histopathological and immunological approaches.
Results: The study showed that the vitamin D3- nitazoxanide combination induced a significant reduction in the parasitic load in the brain sections of the infected mice. We have also reported a delicate balance in the overall immune response against the parasite after using the drug combination. It was noted that vitamin D3, used alone, did not significantly reduce the parasitic load despite the notable improvement in the degree of inflammatory infiltration.
Conclusion: The present study revealed that the vitamin D3–nitazoxanide combination was highly potent in restricting the parasitic load. It controlled the infection without the harmful immunopathological impacts. Thus, vitamin D3 could be a valuable candidate, either as a sole agent or as an adjunct to other anti-parasitic therapies, in areas where toxoplasmosis is endemic.