خيارات البحث
النتائج 331 - 340 من 668
Characterization of proteases isolated from Kudoa septempunctata
2015
Shin, S.P., Fisheries Laboratory, Kinki University, Wakayama, Japan | Zenke, K., Department of Aquatic Bioscience, Graduate School of Agricultural and Life Sciences, University of Tokyo, Tokyo, Japan | Yokoyama, H., Department of Aquatic Bioscience, Graduate School of Agricultural and Life Sciences, University of Tokyo, Tokyo, Japan
Proteases play important roles in parasite development and host parasite interactions. The protease of Kudoa spp. has been recognized as a key factor of severe proteolysis of fish muscle post-mortem; however, there is little information available regarding the protease of Kudoa (K.) septempunctata, which was recently identified as a cause of food poisoning in humans. The present study was conducted to isolate and characterize proteases to elucidate the type of protease contained in the parasite and determine the optimal pH for protease activity. We confirmed the cysteine protease and metalloprotease produced by K. septempunctata. While the cysteine protease showed optimal activity at pH 5 that decreased rapidly with increasing pH, the optimal activity of metalloprotease was pH 7, and it remained stable from pH 6 to pH 8. These results indicate that the pH of cysteine protease is not proper for fish muscle postmortem, and that metalloprotease can act in human intestines. Overall, the present study provides important information that improves our understanding of the role of protease physiology and the subsequent food poisoning caused by K. septempunctata.
اظهر المزيد [+] اقل [-]Fecal microbiota analysis of obese dogs with underlying diseases: a pilot study
2015
Park, H.J., College of Veterinary Medicine, Chungnam National University, Daejeon, Republic of Korea | Lee, S.E., Division of Malaria and Parasitic Diseases, Korea National Institute of Health, Korea Centers for Disease Control and Prevention, Osong, Republic of Korea | Kim, H.B., Department of Animal Resources Science, Dankook University, Cheonan, Republic of Korea | Kim, J.H., College of Veterinary Medicine, Chungnam National University, Daejeon, Republic of Korea | Seo, K.W., College of Veterinary Medicine, Chungnam National University, Daejeon, Republic of Korea | Song, K.H., College of Veterinary Medicine, Chungnam National University, Daejeon, Republic of Korea
Ten dogs were enrolled in this study: two healthy dogs, two obese dogs without other medical issues and six obese dogs with underlying diseases including pemphigus, chronic active hepatitis, hyperadrenocorticism, narcolepsy, otitis media and heartworm infection. Pyrosequencing of the 16S rRNA gene to explore the gut bacterial diversity revealed that distal gut bacterial communities of samples from patients with pemphigus, otitis media and narcolepsy consisted primarily of Firmicutes, while the major phylum of the distal gut bacterial communities in patients with chronic active hepatitis and hyperadrenocorticism was Fusobacteria. Proteobacteria were the dominant phylum in heartworm infected obese patients.
اظهر المزيد [+] اقل [-]Evaluations of vital signs and echocardiographic left ventricular function after the constant rate infusion of lidocaine and/or ketamine in Beagle dogs
2015
Kim, Y.W., Section of Small Animal Internal Medicine, College of Veterinary Medicine, Kangwon National University, Chuncheon, Republic of Korea | Choi, M., Section of Small Animal Internal Medicine, College of Veterinary Medicine, Kangwon National University, Chuncheon, Republic of Korea | Kim, T.J., Section of Small Animal Internal Medicine, College of Veterinary Medicine, Kangwon National University, Chuncheon, Republic of Korea | Hyun, C., Section of Small Animal Internal Medicine, College of Veterinary Medicine, Kangwon National University, Chuncheon, Republic of Korea
Cardiopulmonary depression of long-term constant rate infusion (CRI) administration of multiple analgesic drugs is important, especially in critically ill dogs. Therefore, this study was conducted to evaluate the effects of lidocaine, ketamine or combined lidocaine-ketamine combination CRI treatment on vital signs and left ventricular (LV) function in healthy dogs. Six adult Beagle dogs were administered either ketamine (initial loading dose of 0.5 mg/ kg followed by 10 ¥ìg/kg/min CRI), lidocaine (initial loading dose of 2 mg/kg followed by 0.025 mg/kg/min CRI), or combined lidocaine-ketamine intravenously. Arterial blood pressure (BP), heart rate (HR), respiratory rate (RR), body temperature (BT) and echocardiographic LV dimensions were measured before administration of medications, immediately after administration of drugs, and then every 10 min for 2 h. There were no significant changes in HR, RR, BT and BP after the administration of either lidocaine CRI, ketamine CRI, or combined lidocaine and ketamine CRI. There were also no significant changes in LV dimensions and stroke volume. The results revealed that treatment with either lidocaine, ketamine or combined lidocaine-ketamine may not cause cardiopulmonary suppression in healthy dogs.
اظهر المزيد [+] اقل [-]Development of inactivated Akabane and bovine ephemeral fever vaccine for cattle
2015
Yang, D.K., Viral disease division, Animal and Plant Quarantine Agency, Anyang, Republic of Korea | Kim, H.H., Viral disease division, Animal and Plant Quarantine Agency, Anyang, Republic of Korea | Jo, H.Y., Viral disease division, Animal and Plant Quarantine Agency, Anyang, Republic of Korea | Choi, S.S., Viral disease division, Animal and Plant Quarantine Agency, Anyang, Republic of Korea | Cho, I.S., Viral disease division, Animal and Plant Quarantine Agency, Anyang, Republic of Korea
Akabane and bovine ephemeral fever (BEF) viruses cause vector - borne diseases. In this study, inactivated Akabane virus (AKAV)+Bovine ephemeral fever virus (BEFV) vaccines with or without recombinant vibrio flagellin (revibFlaB) protein were expressed in a baculovirus expression system to measure their safety and immunogenicity. Blood was collected from mice, guinea pigs, sows, and cattle that had been inoculated with the vaccine twice. Inactivated AKAV+BEFV vaccine induced high virus neutralizing antibody (VNA) titer against AKAV and BEFV in mice and guinea pigs. VNA titers against AKAV were higher in mice and guinea pigs immunized with the inactivated AKAV+ BEFV vaccine than in animals inoculated with vaccine containing revibFlaB protein. Inactivated AKAV+BEFV vaccine elicited slightly higher VNA titers against AKAV and BEFV than the live AKAV and live BEFV vaccines in mice and guinea pigs. In addition, the inactivated AKAV+BEFV vaccine was safe, and induced high VNA titers, ranging from 1 : 64 to 1 : 512, against both AKAV and BEFV in sows and cattle. Moreover, there were no side effects observed in any treated animals. These results indicate that the inactivated AKAV+BEFV vaccine could be used in cattle with high immunogenicity and good safety.
اظهر المزيد [+] اقل [-]Alopecia areata in a spayed pug: clinical and immunohistochemical findings
2015
Park, S.G., Department of Veterinary Internal Medicine, College of Veterinary Medicine, Konkuk University, Seoul, Republic of Korea | Lee, C. M., Department of Veterinary Internal Medicine, College of Veterinary Medicine, Konkuk University, Seoul, Republic of Korea | Han, J.I., Department of Veterinary Wild Animal Medicine, College of Veterinary Medicine, Chonbuk National University, Iksan, Republic of Korea | Kim, S.G., Department of Veterinary Internal Medicine, College of Veterinary Medicine, Konkuk University, Seoul, Republic of Korea | Kim, H.J., Department of Veterinary Internal Medicine, College of Veterinary Medicine, Konkuk University, Seoul, Republic of Korea | Park, H.M., Department of Veterinary Internal Medicine, College of Veterinary Medicine, Konkuk University, Seoul, Republic of Korea
A two-year-old spayed female pug presented with symmetrical hyperpigmented alopecic lesions on her axillary and inguinal regions. There were no remarkable findings in dermatologic examinations and hormonal assays. Histological examination of biopsied tissues revealed prominent lymphocytic perifolliculitis along with shrunk hair follicles. Immunohistochemistry for CD3, CD79a, CD4, and CD8 showed a positive stain for CD4 antigen around hair bulbs, suggesting CD4 positive T lymphocyte infiltration. This case suggests the possibility that CD4 T lymphocytemediated inflammatory reaction could be a main mechanism in canine alopecia areata. Additional studies are warranted to investigate the immunological mechanism in canine species.
اظهر المزيد [+] اقل [-]A postmortem study on indigestible foreign bodies in the rumen and reticulum of ruminants, eastern Ethiopia النص الكامل
2015
Negash, Seifu(Hawassa University School of Veterinary Medicine) | Sibhat, Berhanu(Hawassa University School of Veterinary Medicine) | Sheferaw, Desie(Hawassa University School of Veterinary Medicine)
A cross-sectional study was conducted on ruminants (cattle, sheep and goats) slaughtered at Haramaya University and Haramaya municipal abattoirs from November 2013 to April 2014 in Haramaya, eastern Ethiopia. The objective of the study was to identify types and estimate the prevalence of foreign bodies in the rumen and reticulum of domestic ruminants in the area. From 810 randomly selected study animals, 422 (52.1%) were found to have foreign bodies. Of the 332 cattle, 193 sheep and 285 goats examined, 144 (43.4%), 109 (56.5%) and 169 (59.3%) respectively were found with various types of foreign bodies. The prevalence of foreign bodies was significantly (χ2 = 17.53, p < 0.05) higher in sheep (59.3%) and goats (56.7%) than in cattle (43.4%). Overall the prevalence of foreign bodies in study animals with poor body condition was significantly higher (χ2 = 38.57,p < 0.05) than in those with medium and good body condition. A higher percentage of foreign bodies occurred in the rumen alone (87.9%) than in the reticulum alone (5.0%), with the rest present in both. Significantly higher proportions of foreign bodies were observed in the rumen of cattle (χ2 = 332, p < 0.05), sheep (χ2 = 193, p < 0.05) and goats (χ2 = 285.0, p = 0.000) than in the reticulum. Plastic was the most commonly encountered (79.2%) foreign body, followed by cloth (15.3%) and rope (12.3%). In addition, metal (0.9%) and calcified material and/or stone (1.0%) were found in the reticulum of cattle. Lack of a plastic waste disposal system in the area as well as communal/free grazing of livestock in highly waste-polluted areas seemed to be major factors in the high occurrence of foreign bodies in ruminants. To change this, collaborative intervention schemes involving professionals, policy makers, livestock keepers and environmental activists are needed.
اظهر المزيد [+] اقل [-]COMPARATIVE STUDY BETWEEN NIGELLA SATIVA AND ZIZIPHUS SPINA-CHRISTI EFFECTIVENESS ON SKIN A SUPERFICIAL BURN HEALING IN RABBITS. النص الكامل
2015
Luay A.Naeem
The present study to evaluate the third degree burn involved all skin layers (full-thickness burns), and that by using ziziphus leaf extract and nigella seed extract as an ointment. Healthy twelve mature rabbits either sex, weighing 2-2.5 kg, bred locally were used. Divided in to two groups (ziziphus group and nigella group) six rabbits of rabbits each one burned experimentally by using fire source directly on skin surface and then treated with local application of ointment (ziziphus leaf ointment and nigella sativa seed ointment) each one on it is group with daily dressing by using medical gauze. This study appeared the benefit effect of ziziphus ointment and nigella ointment in burn healing in histopathological changes, but the group treated with ziziphus leaf extract (ointment) was better than the other group in cellular response to inflammatory process that occur during healing by early apparition of re-epithelialization
اظهر المزيد [+] اقل [-]GROSSLY AND MICROSCOPIC STUDY OF THE TRACHEA AND BRONCHIAL TREE IN THE LOCAL SHEEP ( OVIS ARIS). النص الكامل
2015
Saffia Kareem Wally Al- Umeri
The trachea of the local sheep is a tubular structure that begins at the cricoid cartilage of the larynx and ends when it bifurcates to form the principle bronchi, composed of series of incomplete rings that were incomplete dorsally present between of them longitudinal folds. The study include twelve specimens divided into four groups grossly, histological study, cast and radiography. The anatomical study include the mean total tracheal length from the first ring to the bifurcation about (25.9 cm) , mean number of cartilaginous rings (48.6), mean number of folds (45), measured the length of trachea from the cricoids cartilage to the trachealis bronchus which enter to the cranial lobe of lung which branches from the trachea in last third before divided into two bronchi right and left each of one enter the lung for respiration also measure diameters of each tracheal ring which deference according the position of rings, which decrease of diameters when direction caudally to the root of lung the rings have different shape in the three parts of the trachea cervical, middle and thoracic the histological study showed the trachea lining pseudo stratified ciliated columnar epithelium with goblet cells, the wall of trachea consist of mucosa, submuosa, hyaline cartilage and adventitia and have large amount of tracheal gland,the trachealis muscle composed of elastic fibers interupted with smooth fibers. The cast of trachea showed the bronchial tree and radiography explain the trachea , bronchi and bronchioles.
اظهر المزيد [+] اقل [-]HISTOLOGICAL LESIONS OF SLAUGHTERED CALVE'S KIDNEYS IN MOSUL SLAUGHTER HOUSE النص الكامل
2015
H. K. Ismail
The objective of present study was to investigate the gross and histopathological findings of calves kidneys slaughtered in Mosul abattoir. Pathological examination were carried out on fifty calves' kidneys. The most common gross lesions were included 20% multifocal white spots, 16% enlarged pale kidneys20% congested enlarged kidneys , 10% small shrunken kidneys, 14% hyperemic hemorrhagic kidneys, 20% kidneys without any gross lesions. The common observation in the histopathological examination of the kidneys revealed slight to severe mononuclear infiltration were commonly observed, widening of the Bowman's space were common, nephrosis, glomerulonephritis, interstitial nephritis, acute tubular degeneration and necrosis. Cysts were observed also in this study.
اظهر المزيد [+] اقل [-]HISTOPATHOLOGICAL AND BIOCHEMICAL STUDYTO EFFECT OF CODEINE-PARACETAMOLIN SPRAGUE DAWLEY RATS النص الكامل
2015
Adel J. Hussein | Aseel Kamel Hameed | S.K.Majeed
This study performed in twenty four male Sprague Dawley rats for (90) days which divided randomly into four equal groups. Group (1): received normal saline daily. Group (2): received orally codeine-paracetamol(40/2500 mg / kg b.w) daily. Group (3): received orally codeine-paracetamol (80/5000 mg / kg b.w)daily. Group (4): received orally codeine- paracetamol (160 /10000 mg / kg b.w) daily. After end of day (90) of study all animals were sacrificed to do the histopathological and biochemical examinations. The statistical analysis results revealed the body weight effects of codeine-paracetamol toxicity a significant (P≤0.05) decreases of treated group after (90) days of treatment. The histopathological investigation of liver, kidney and brain of treated groups showed centrolobular necrosis, dilation of sinusoids, vaculation of hepatocytes and septal fibrosis of liver while kidney showed vaculation of mesengial cells of glomeruli, necrosis of proximal convoluted tubules and dilation of renal cortical tubules, also brain of treated group showed vaculation of neurons, these changes are appeared mild in group (2), moderated in group (3) and sever in group (4). The statistical analysis results of biochemical investigations of liver and kidney function tests showed a significant (P≤0.05) increases of levels of serum AST, ALT, ALP, bilirubin and creatinine respectively in all treated groups which these enzymes increased mildly in group (2), moderately in group (3) and severely in group (4).
اظهر المزيد [+] اقل [-]