• Home
  • Al-Asayed R. Al-Attar
Al-Asayed R. Al-Attar

Al-Asayed R. Al-Attar
Faculty of Veterinary Medicine,Zagazig University,Egypt · Pathology

Professor

About

64
Publications
17,544
Reads
How we measure 'reads'
A 'read' is counted each time someone views a publication summary (such as the title, abstract, and list of authors), clicks on a figure, or views or downloads the full-text. Learn more
93
Citations
Introduction
I am veterinary pathologist with extensive experience in diagnostic pathology as well as pathobiology. I have experience in anatomical pathology, in-situ hybridization, immunohistochemistry, and cytogenitics. My interest focuses on diagnostic pathology ,immunopathology, cytopathology, pathobiology and the pathogenesis of viral, bacterial and fungal diseases as well as cancer pathology, both in animals and in human. On the veterinary side, my current research has been on , pox lesions in sheep ,mastocytoma in a dog , fatal multi-organ impairment in a dog, hydatidosis in camels , hyperurecemia in rats and theileriosis in sheep.I am professor in the department of Pathology at the College of Veterinary Medicine , zagazig University ,Egypt. I have a strong interest in the training of our gradua
Additional affiliations
June 1998 - July 2015
Independent Researcher
Independent Researcher
Position
  • Professor (Full)
November 1991 - April 1992
Tufts University
Position
  • PostDoc Position
Description
  • Study on bilharzial granuloma
September 1980 - October 2015
Zagazig University
Position
  • Professor
Description
  • I am veterinary pathologist with extensive experience in diagnostic pathology as well as pathobiology. I have experience in anatomical pathology, in-situ hybridization, immunohistochemistry, and cytogenitics.

Publications

Publications (64)
Article
Full-text available
Gold nanoparticles are known by its good penetrating ability and translocation into cells. Despite their convenience, they can induce biochemical abnormalities and tissue toxicity. This study aimed to investigate the possibility of hepato-renal toxicities induced by gold nanorods (AuNRs) on liver and kidney tissues at short and long term basis. The...
Article
Full-text available
The current study sought to investigate the potential role of Trichinellaspiralis infection in the treatment of T. gondii-induced ileitis. Forty male Swiss albino mice were divided into four groups:a normal control group Igiven only phosphate-buffered saline (PBS), Group II givenPBS for 28 days then infected with T. gondii cysts for the induction o...
Article
Full-text available
An efficient therapeutic approach for osteoarthritis (OA) is yet to be discovered. In the current study, we evaluated coadministration of nanocurcumin (NCur) and platelet rich plasma (PRP) as a potential therapeutic strategy for treating experimentally induced osteoarthritis. Thirty male albino rats weighing 180± 20 gm were divided into 5 groups, 6...
Article
Full-text available
Thymoquinone (TQ), the active constituent of Nigella sativa, possesses several benefits in traditional and modern medicines. This study examined the effect of a single dose of Nano-TQ on chronic lung injury induced by repetitive intratracheal installation of lipopolysaccharide (LPS). Rats received LPS twice weekly for 8 weeks via intratracheal inst...
Article
Full-text available
ABSTRACT Background: Tamoxifen is selective estrogen receptor modulators, used in treatment of breast cancer, some literatures reported its impact on the process of peroxidation. Aim: The aim of this study was to evaluate the effect of tamoxifen on ethanol induced gastric ulcer in rats. Method: Gastric ulcers were induced in Wistar albino rats by o...
Article
Full-text available
The bursal cytokine gene expression and apoptosis were compared in vaccinated chickens with either live or immune-complex infectious bursal disease virus (IBDV) vaccines with or without virulent IBDV challenge. The cytokine gene expressions were evaluated at 5 and 12 day-post-challenge (DPC). The apoptotic marker Caspase-3 was determined by IHC...
Article
The bursal cytokine gene expression and apoptosis were compared in vaccinated chickens with either live or immune-complex infectious bursal disease virus (IBDV) vaccines with or without virulent IBDV challenge. The cytokine gene expressions were evaluated at 5 and 12 day-post-challenge (DPC). The apoptotic marker Caspase-3 was determined by IHC on...
Article
Full-text available
In this study infectious bursal disease (IBD) vaccinations were evaluated against very virulent IBD (vvIBDV) challenge and were compared. A total of 120-day-old white Leghorn SPF chickens were divided into 6 groups (each was 20 birds). Two groups were vaccinated on either day 1 with an immune-complex vaccine. The second groups were vaccinated at da...
Article
Full-text available
Background: Although bone tumors are common pathologies in companion animals, limited reports describe nasal osteosarcoma (OSA) in cats. Case description: A case of nasal OSA in a local Libyan cat was admitted to the Veterinary Teaching Hospital at the Faculty of Veterinary Medicine, University of Tripoli-Libya, with nasal swelling and discharge...
Article
Full-text available
Abstract | An update survey of the MDV strains circulating in the Egyptian poultry flocks during 2015 -2016 was conducted. Twenty one vaccinated chicken flocks suffering from different form of lymphomas, representing different governorates in the Egyptian Delta, were screened for MDV infection. Pathological findings in the visceral tumours and pres...
Article
Full-text available
Abstract | An update survey of the MDV strains circulating in the Egyptian poultry flocks during 2015 -2016 was conducted. Twenty one vaccinated chicken flocks suffering from different form of lymphomas, representing different governorates in the Egyptian Delta, were screened for MDV infection. Pathological findings in the visceral tumours and pres...
Article
Full-text available
An update survey of the MDV strains circulating in the Egyptian poultry flocks during 2015-2016 was conducted. Twenty one vaccinated chicken flocks suffering from different form of lymphomas, representing different governorates in the Egyptian Delta, were screened for MDV infection. Pathological findings in the visceral tumours and presence of vira...
Article
Full-text available
Abstract PVNS is a disease condition affecting the joints in adult males and females and also in animals, it could lead to severe pain, joint deformity and decrease of joint function with a consequent lowering of the productivity. Moreover it is a diagnostic challenge, the difficulty stems from the insidious onset and nonspecific presentation of th...
Article
Full-text available
Acute lung injury (ALI) is a major cause of morbidity and mortality in humans and animals. In traditional and modern medicines, Nigella sativa extract, thymoquinone (TQ) has several benefits. Here, we examined the counter effects of TQ in ALI induced by Lipopolysaccharide (LPS). Tissue sections and serum samples were collected from the following gr...
Experiment Findings
Full-text available
Presentation
Full-text available
Avian Pathology, viral diseases with illustrative images
Article
Full-text available
Mucilage of Cordia dichotoma fruits (Boraginaceae) has been used as an expectorant and treatment of lung diseases and gonorrhea. This study isolated and identified C. dichotoma mucilage as a hypolipidemic agent on blood lipid and antioxidant stress status using hyperlipidemic male albino rats. C. dichotoma mucilage was isolated and its physical and...
Presentation
Full-text available
Avian bacterial diseases with illustrative images
Article
A ewe of native breed aged 2.5-3 years old was admitted to Vet. Clinic, Faculty of Veterinary Medicine at June 2015 with circumscribed raised large solitary area measuring (5-7cm) in diameter covered by an alopecic, dark-red and ulcerated surface located in a distal portion of the medial aspects of the fatty tail. The sheep was subjected to surgica...
Data
Full-text available
Osteosarcoma is one of the most important bone tumors of human beings and pet animals. It is a rapidly progressive, early metastasize, osteolytic, highly fatal tumor. It may arise from central medullary osteoblasts, peripheral periosteal or perichonderal cells, and extra skeletal tissues or may have a pluripotent potential. A Shirazi Native breed c...
Article
Full-text available
bstract Osteosarcoma is one of the most important bone tumors of human beings and pet animals. It is a rapidly progressive, early metastasize, osteolytic, highly fatal tumor. It may arise from central medullary osteoblasts, peripheral periosteal or perichonderal cells, and extra skeletal tissues or may have a pluripotent potential. A Shirazi Native...
Article
Full-text available
Osteosarcoma is one of the most important bone tumors of human beings and pet animals. It is a rapidly progressive, early metastasize, osteolytic, highly fatal tumor. It may arise from central medullary osteoblasts, peripheral periosteal or perichonderal cells, and extra skeletal tissues or may have a pluripotent potential. A Shirazi Native breed c...
Article
Full-text available
Gross and histopathological features of surgically excised squamous cell carcinomas (SCC) observed in thirteen local Libyan ewes were reported. The age of the ewes enrolled in the current study ranged from 2 to 3 years. The cases were admitted to private veterinary clinics in south-western region of Tripoli, Libya, during the period between July...
Article
Full-text available
Anaplasmamarginale (A. marginale) is an obligate intra-erythrocytic rickettsia;it is the cause of anaplasmosis, an important tick-borne disease of cattle. Recovered and vaccinated cattle in endemic areas are apparently normal but remain persistently infected and serve as reservoirs for the parasite.This study intended to detect A. marginale in infe...
Presentation
Full-text available
Mechanism of cancer induction naturally and experimentally
Presentation
Full-text available
Causes ,objectives ,types and pathogenesis of different types of inflammation in animals and human
Presentation
Full-text available
Mechanism of cancer induction naturally and experimentally
Article
Full-text available
Hyperlipidemia is a major risk factor for coronary heart disease. Hyperlipidemia increases the incidence of myocardial ischemia and cardiac events. This study evaluated the potential hypolipidemic and antioxidant action of the aqueous extract from the uneaten pulp of the fruit from Cordia dichotoma (“CDNP extract”). In vivo studies were performed f...
Research
Full-text available
a view and sight about the international journal of clinical pathology
Research
Full-text available
a view and sight about the international journal of clinical pathology
Article
Full-text available
Abstract The aim of this study is to define the main etiological factor(s) which have contributed to the death of a 7 years old Rottweiler male dog. The dog was thought to suffer from cardiac problems and died shortly after admission. External examination revealed pale mucous membranes and subcutaneous edema in the neck and abdominal regions. On ev...
Article
Full-text available
INTRODUCTION Infertility is a major worldwide public health concern because it affects approximately 10% of all reproductive-aged couples 1. Exposure to chemicals during reproductive developmental windows may predispose individuals to disease and/or dysfunction later in life. 1,1,1-trichloroethan (TCE), an ambiguous environmental pollutant, is wide...
Article
Full-text available
Hundred-twenty five diseased or freshly dead birds from different domestic poultry flocks chickens flocks layers breeds as (lohman, novagen and native breed as sasso) and sporadic cases were collected and necropsied between the period from Aug. 15, 2012 to Nov. 8, 2014 and samples from each case were collected. The collecting samples were subjected...
Data
Full-text available
Rhabdomyomatous mesenchymal hamartoma is an extremely rare congenital lesion and it is very rare in domestic livestock. A still birth full –term Buffalo calf, with a history of dystokia due to large malformed enlargement in the neck (25x22x18cm) was investigated. Macroscopic and microscopic lesions were reported. The clinical macroscopic and histop...
Article
Full-text available
This article included the identification of twenty eight (28) tumor biopsies and autopsies which were delivered to the department of surgery and pathology in the Faculty of Veterinary Medicine, University of Tripoli for the period 2007 to 2011. Gross and histological examinations revealed the existence of different benign and malignant tumors inclu...
Article
Full-text available
An outbreak of gout was investigated in a growing layers farm of 45000 birds located in Tripoli, Libya. Mortality was commenced at 39 days-old reaching to a total of 489 birds within 10 days. Post mortem was conducted and kidney tissue samples were fixed in 10% neutral formalin prior to processing. Feed samples were sent to the Animal Nutrition Dep...
Article
Full-text available
Pathological investigation was carried out on pox disease outbreak in a local flock in Tripoli, Libya. Sheep and goats of different ages and sex suffered a short course of illness with mortality rate approximating 25%. Affected animals showed clinical signs of fever, depression and anorexia associated with the characteristic skin lesions and a gene...
Article
Full-text available
This study carried out in order to determine the prevalence of Toxoplasma gondii antibodies and identification the brain cyst of Toxoplasma gondii in house mice (Mus musculus). A total of 21 samples were found positive for the presence of Toxoplasma gondii antibodies, giving an overall prevalence of 35%, and brain were examined microscopically, tis...
Article
Full-text available
A 10 year-old Goldin Shefer dog, showing a vigorous recurrent tumor-mass (5x3x2.5cms),on the left upper chest region ,was admitted to the Veterinary hospital,Fac.Vet.Med,Tripoli,Libya.The tumor-mass was surgically exiced and submitted for pathologic investigations.It was examined for color,consistency,shape and weight.The cut-surface was examined a...
Article
Full-text available
Infection with schistosomiasis results in CD4+ T helper (Th) cell-dependent granulomatous inflammation around parasite eggs. T cell-derived cytokines play a critical role in the induction and subsequent down-modulation of the granulomas. These cytokine responses have been previously examined in lymphoid cell supernatants or in tissue homogenates bu...
Article
Full-text available
Abstract The livers of 14 donkeys, 3 mules, 8 horses and 50 camels all from Egypt, were subjected to gross and histopathological examination to determine the prevalence of Fasciola gigantica infection. Two donkeys (8%) and 6 camels (12%) were found to be infected. The pathological changes that had occurred in infected livers were found to be more s...

Network

Cited By

Projects

Projects (2)
Project
In this project we will study the immunomodulatory effect of some herbal medicine extracts on immune cells inflammatory functions through their phagocytic-antimicrobial activities. Also, we will explore the potential protective effects against CCl4–induced hepatotoxicity in rats through the activity/level of AST, ALT, -GT, ALP, bilirubin, total proteins, triglycerides, and total cholesterol. We will use the Molecular analyses for exploring the field of intracellular signal transduction of transforming growth factor-β. TGF-β and platelet-derived growth factor-BB (PDGF-BB), as well as collagen gene expression, which play an important role in therapeutic strategies against fibrosis in human liver disease. Furthermore, Studying of the collagen contents of fibrotic liver before and after treatment with herbal medicine by histopathological and histochemical tools and by serum biomarkers are important goals of our work.
Project
Teaching and suppervising under and postgraduate students in concern with Pathology of animals and humen