Parasitic diseases

Histomoniasis, commonly known as blackhead disease, is a parasitic disease in poultry caused by the protozoan Histomonas meleagridis. The availability of various compounds for chemotherapy in the 1970s resulted in the successful control of blackhead disease.

13p vibecca 01-10-2024 4 1   Download

Để phân định rõ ràng các bệnh của loài cá Salmonid, chúng ta tạm chia các bệnh tật của loài cá Salmonid làm 5 loại khác nhau. - Bệnh do vi khuẩn (Bacterial diseases) - Bệnh do virus (Viral diseases) - Bệnh nấm (Fungal diseases) - Ký sinh Protozoan (Protozoan parasites) - Ký sinh Metazoan (Metazoan parasites) 1/ Bệnh do vi khuẩn (Bacterial diseases): Với cá Salmonids thì các bệnh do vi khuẩn gây nên khá nhiều, một số bệnh thường gặp: Furunculosis: Bệnh gây ra bởi vi khuẩn Aeromonas salmonicida....

5p thiepmoi123 24-06-2013 79 4   Download

Trypanosoma brucei is the cause of the diseases known as sleeping sickness in humans (T. brucei ssp. gambiense and ssp. rhodesiense) and ngana in domestic animals (T. brucei brucei) in Africa. Procyclic trypomastigotes, the tsetse vector stage, express a surface-bound trans-sialidase that transfers sialic acid to the glycosylphosphatidylinositol anchor of procyclin, a surface glycoprotein covering the parasite surface. Trans-sialidase is a unique enzyme expressed by a few trypanosomatids that allows them to scavenge sialic acid from sialylated compounds present in the infected host. ...

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Trypanosoma cruzi, the parasitic protozoan that causes Chagas disease, contains a major cysteine proteinase, cruzipain. This lysosomal enzyme bears an unusual C-terminal extension that contains a number of post-translational modifications, and most antibodies in natural and experimen-tal infections are directed against it. In this report we took advantage of UV-MALDI-TOF mass spectrometry in conjunction with peptide N-gly-cosidase F deglycosylation and high performance anion exchange chroma-tography analysis to address the structure of the N-linked oligosaccharides present in this domain. ...

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Glucose-6-phosphate isomerase catalyzes the reversible aldose-ketose isomerization of D-glucose-6-phosphate to D-fructose-6-phosphate in glycolysis and gluconeogenesis, and in the recycling of hexose-6-phosphate in the pentose phosphate pathway. The unicellular protozoans,Trypan-osoma brucei, T. cruziandLeishmaniaspp., of the order Kinetoplastida are important human parasites responsible for African sleeping sickness, Chagas’ disease and leish-maniases, respectively. In these parasites, glycolysis is an important (and in some cases the only) metabolic pathway for ATP supply....

8p dell39 03-04-2013 35 3   Download

Onchocerciasis or river blindness, caused by the filarial nematodeOncho-cerca volvulus, is the second leading cause of blindness due to infectious diseases. The protective role of the omega-class glutathione transferase 3 from O. volvulus(OvGST3) against intracellular and environmental reactive oxygen species has been described previously.

16p galaxyss3 07-03-2013 44 2   Download

Triatoma infestans(Hemiptera: Reduviidae) is a hematophagous insect that transmits the protozoan parasite Trypanosoma cruzi, the etiological agent of Chagas’ disease. Its saliva contains trialysin, a protein that forms pores in membranes. Peptides based on the N-terminus of trialysin lyse cells and fold into a-helical amphipathic segments resembling antimicrobial peptides. Using a specific antiserum against trialysin, we show here that trialysin is synthesized as a precursor that is less active than the protein released after saliva secretion. ...

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In the apicoplast of apicomplexan parasites, plastidic-type ferredoxin and ferredoxin-NADP + reductase (FNR) form a short electron transport chain that provides reducing power for the synthesis of isoprenoid precursors. These proteins are attractive targets for the development of novel drugs against diseases such as malaria, toxoplasmosis, and coccidiosis.

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Tuyển tập các báo cáo nghiên cứu về y học được đăng trên tạp chí y học Wertheim cung cấp cho các bạn kiến thức về ngành y đề tài: Comparative genomics of the pathogenic ciliate Ichthyophthirius multifiliis, its free-living relatives and a host species provide insights into adoption of a parasitic lifestyle and prospects for disease control...

82p thulanh22 20-11-2011 96 6   Download

Malaria, caused by four species of Plasmodium, of which Plasmodium falciparum is the most dangerous, remains the world's most devastating human parasitic infection. This chapter deals with the properties and uses of important drugs used to treat and prevent this infection. Highly effective agents that act against asexual erythrocytic stages of malarial parasites responsible for clinical attacks include chloroquine, quinine, quinidine, mefloquine, atovaquone, and the artemisinin compounds.

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Brain Masses Mass lesions of the brain most often present as headache with or without fever or neurologic abnormalities. Infections associated with mass lesions may be caused by bacteria (particularly Nocardia), fungi (particularly Cryptococcus or Aspergillus), or parasites (Toxoplasma). Epstein-Barr virus (EBV)–associated lymphoproliferative disease may also present as single or multiple mass lesions of the brain. A biopsy may be required for a definitive diagnosis. Pulmonary Infections Pneumonia (Chap.

5p konheokonmummim 03-12-2010 76 4   Download

Eosinophilia Eosinophilia is the presence of 500 eosinophils per µL of blood and is common in many settings besides parasite infection. Significant tissue eosinophilia can occur without an elevated blood count. A common cause of eosinophilia is allergic reaction to drugs (iodides, aspirin, sulfonamides, nitrofurantoin, penicillins, and cephalosporins). Allergies such as hay fever, asthma, eczema, serum sickness, allergic vasculitis, and pemphigus are associated with eosinophilia. Eosinophilia also occurs in collagen vascular diseases (e.g.

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Endophthalmitis This occurs from bacterial, viral, fungal, or parasitic infection of the internal structures of the eye. It is usually acquired by hematogenous seeding from a remote site. Chronically ill, diabetic, or immunosuppressed patients, especially those with a history of indwelling IV catheters or positive blood cultures, are at greatest risk for endogenous endophthalmitis. Although most patients have ocular pain and injection, visual loss is sometimes the only symptom.

5p ongxaemnumber1 29-11-2010 95 6   Download

Use of Fungi for Insect Control - Issues, Developments & Research Needs Entomopathogenic Fungi • Classification • Pathogenesis • Why fungi as BCA’s? • Commercialization • Registration • Some examples • Research Agriculture and Agriculture et Agri-Food Canada Agroalimentaire Canada

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1. Tên học phần: - BỆNH KÝ SINH TRÙNG Ở ĐỘNG VẬT THỦY SẢN - FISH PARASITIC DISEASES 2. Số đơn vị học trình: - Lý thuyết: 3 đvht - Thực hành: 1 đvht 3. Trình độ: Sinh viên năm thứ 3 bậc đại học, ngành bệnh học thủy sản.

5p nguyentainang1610 15-03-2010 263 49   Download