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Changes of colonic endocrine cells in trinitrobenzene sulfonic acid (TNBS)-induced rat colitis
2011
Back, Y.D., Oriental Hospital, Gyeongsan, Republic of Korea | Lee, H.S., Daegu Haany University, Gyeongsan, Republic of Korea | Chung, I.K., Daegu Haany University, Gyeongsan, Republic of Korea | Cheon, W.H., Daegu Haany University, Gyeongsan, Republic of Korea | Ku, S.K., Daegu Haany University, Gyeongsan, Republic of Korea
In this study, immunohistochemistry was used to examine the changes in the density of colonic endocrine cells - argyrophil and argentaffin cells, chromogranin A (CGA), serotonin, somatostatin and glucagon-containing cells in trinitrobenzene sulfonic acid (TNBS)-induced rat colitis. Ulcerative colitis was induced by the instillation of 10 mg of TNBS into the colonic lumen through the anus. To confirm the inducement of ulcerative colitis, the macroscopic and microscopic scores as well as the colonic myeloperoxidase (MPO) activities were monitored for 8 days after TNBS instillation in the colonic lumens. In addition, the number of argyrophil and argentaffin cells, CGA, serotonin, somatostatin and glucagon-immunoreactive cells were counted in the colonic mucosa, respectively. After TNBS instillation into the lumen of the colon from the anus in rats, increases in macroscopic and microscopic scores in the colon tissues were observed along with increases in the colonic MPO activities. Therefore, ulcerative colitis was relatively well induced by the TNBS instillations. Marked decreases in the number of colonic endocrine cells were detected in the TNBS-treated animal compared to the sham control. These results suggest that colonic endocrine cells were also disrupted by TNBS-induced ulcerative colitis.
Mostrar más [+] Menos [-]Imprinting of a foal and large intestine prolapse associated with uterine rupture in a Thoroughbred broodmare
2005
Yang, J.H. (Korea Racing Association, Jeju, Republic of Korea) | Kim, S.Y. (Cheil Bio LTD., Ansan, Republic of Korea) | Kim, H.S. (Cheju National University, Jeju, Republic of Korea) | Yang, Y.J. (Korea Racing Association, Jeju, Republic of Korea) | Lee, Y.D. (Korea Racing Association, Jeju, Republic of Korea) | Kang, T.Y. (Cheju National University, Jeju, Republic of Korea) | Hwang, K.K. (Cheju National University, Jeju, Republic of Korea) | Lim, Y.K. (Cheju National University, Jeju, Republic of Korea), E-mail: yklim@cheju.ac.kr
In this report, we described a case of acute colic with uterine rupture in a Thoroughbred broodmare during parturition. A 14-year-old broodmare showed acute colic characterized by rolling just after delivering of a healthy foal. Large intestine was prolapsed through vulva, contaminated with soil and its serosa was heavily damaged. We performed a euthanasia according to the owner's request. Post mortem examination revealed about 15 cm rupture on ventral side of the uterus. In addition, the orphan foal follow his owner after necropsy on his dam.
Mostrar más [+] Menos [-]Effect of hyaluronic acid on prevention of adhesion in rats
Lee, J.H.;Lee, J.M.;Yun, Y.M.;Kang, T.Y.;Woo, H.C.;Kang, Y.H.;Kim, H.S.;Lee, K.K.;Cheong, J.T.(Cheju National University, Jeju, Republic of Korea)E-mail:cjt123@cheju.ac.kr | Kim, N.J.(HyeChon College, Daejeon, Republic of Korea)
This study was conducted to investigate the effect of hyaluronic acid (HA) on prevention of abdominal adhesions depending on various concentrations thereof by inducing an abrasion experimentally in the cecum of rats. Each group was consisted of 10 rats, and 40 rats were divided into 4 groups comprising the saline treatment group, HA 0.4% treated group, 0.6% treated group, and 0.8% treated group. And abrasion was caused in the cecum by using dry gauze and thereby, adhesion was induced. On 7 days after the operation, adhesions of each region were evaluated into the range of 0~4.
Mostrar más [+] Menos [-]Feline panleukopenia virus infection in imported cats
2007
Kang, S.C. (Cheju National University, Jeju, Republic of Korea) | Kang, K.I. (University of Georgia, Athens, GA, USA) | Jean, Y.H. (National Veterinary Research and Quarantine Service, Anyang, Republic of Korea) | Kim, J.H. (Cheju National University, Jeju, Republic of Korea), E-mail: kimjhoon@cheju.ac.kr
The cases of feline panleukopenia virus (FPLV) infection were diagnosed in three imported cats. All cats died within one week after mild emaciation, depression and anorexia. One cat showed yellowish watery diarrhea. At necropsy, all cats had segmental hemorrhage on the serosa and mucosa of the small intestine. Histopathologically, severe diffuse necro-hemorrhagic enteritis was observed in small intestine especially in jejunum and ileum. The crypts of Lieberkuhn were dilated and contained necrotic epithelia. Severely damaged epithelia of crypts were transformed into bizarre shapes.
Mostrar más [+] Menos [-]Coexpression of PCNA and p21 for DNA repair in small intestinal crypt cells of mouse with ∨60Co γ-rays irradiation
2005
Hong, S.J. (Cheju National University, Jeju, Republic of Korea) | Hwang, I.S. (Cheju National University, Jeju, Republic of Korea) | Ahn, M.J. (Cheju National University, Jeju, Republic of Korea) | Shin, T.K. (Cheju National University, Jeju, Republic of Korea) | Joo, H.G. (Cheju National University, Jeju, Republic of Korea) | Park, H.J. (Cheju National University, Jeju, Republic of Korea) | Jee, Y.H. (Cheju National University, Jeju, Republic of Korea), E-mail: yhjee@cheju.ac.kr
The irradiation of radioactive γ-ray induces apoptosis of radiosensitive organs for homeostasis. In this study, we investigated the repair mechanisms for homeostasis in the small intestine after cell damage by ∨60Co γ-ray irradiation. The apoptosis was most frequently observed in the crypt cells of the small intestine after four and six hours by radioactive γ-ray irradiation, and the frequency of apoptosis was proportional to the amount of irradiation. Also, the number of apototic cells was coincident with expression pattern of p53.
Mostrar más [+] Menos [-]Properties of Enterococcus faecium isolated from the intestine of slaughting pigs
Kim, I.D.;Ahn, M.H.;Seok, H.B.(Dankook University, Cheonan, Republic of Korea)E-mail:hobong@dankook.ac.kr
The growth characteristics and the properties of the Enterococcus faecium (E. faecium) isolated from intestine of slaughting pig were examined in order to confirm whether it will be used practically as probiotics or not. E. faecium was identified by morphological and biochemical tests including of final confirming by API strep kit. Among 264 samples, 44 isolates (16.7%) of E. faecium were observed as an exellent growth as a range of 1×10∨7 CFU/ml~3.3×10∨9 CFU/ml in viable bacterial count on MRI medium.
Mostrar más [+] Menos [-]Preoperative administration effect of metronidazole, ceftriaxone sodium and their combination on stenotic index of jejunal anastomotic segment of dogs
2014
Rehan, Rafique., Veterinary Research Institute, Lahore, Pakistan | Asi, Muhammad Nadeem., Department of Clinical Medicine & Surgery, University of Agriculture Faisalabad, Faisalabad, Pakistan | Saqib, Muhammad., Department of Clinical Medicine & Surgery, University of Agriculture Faisalabad, Faisalabad, Pakistan | Hussain, Muhammad Hammad., Department of Clinical Medicine & Surgery, University of Agriculture Faisalabad, Faisalabad, Pakistan | Sial, Awais-ur-Rehman., Department of Clinical Medicine & Surgery, University of Agriculture Faisalabad, Faisalabad, Pakistan | Mushtaq, Aqsa, Veterinary Research Institute, Lahore, Pakistan
The jejunum is the longest part of the small intestine and its lumen is mainly involved in the absorption of the nutrients. The present study was conducted to evaluate the effects of metronidazole, ceftriaxoine sodium and their combination on the stenotic index of the end to end jujunal anastomotic site. To accomplish this, 20 healthy stray dogs were subjected to end to end jejunal ansastmosis. Dogs in Group A (control) underwent jejunal anstomosis with no antibiotic prophylaxis, while those in Group B received surgery and metronidazole alone at 50 mg/kg, those in Group C received ceftriaxone sodium intravenously at 30 mg/kg body weight prior to surgery and dogs in Group D were given metronidazole in combination with ceftriaxone sodium at 50 mg/kg and 30 mg/kg, respectively, 2 h before surgical intervention. No significant difference (p 0.05) in the stenotic index was observed at 14 days after jejunal anastomosis. These findings indicate that prophylactic administration of metronidazole and ceftriaxone sodium alone or in combination had no significant effect on the stenotic index of the jejunum.
Mostrar más [+] Menos [-]Diaphragmatic hernia in a Jeju horse (crossbred) broodmare
2009
Yang, J.H., Equine Hospital of Busan Race Park, Korea Racing Authority, Busan, Republic of Korea | Koh, Y.N., Jeju Animal Theme Park, Jeju, Republic of Korea | Hwang, K.K., Jeju National University, Jeju, Republic of Korea | Lim, Y.K., Jeju National University, Jeju, Republic of Korea
Diaphragmatic hernias, whether congenital or acquired (traumatic), are rarely observed in the horse. Acquired diaphragmatic hernias typically occur secondary to trauma or an increase in intra-abdominal pressure due to falling, heavy exercise, or parturition. Diaphragmatic herniorrhaphy is difficult to perform in adult horses and the horses with symptomatic diaphragmatic hernias usually die. A 10-year old, 340 kg, Jeju horse (crossbred) broodmare with sudden onset of gait disorder and a moderate emaciation was examined. Findings on physical examination included conjunctivitis, dehydration, shallow breathing, dyspnea, weaken heart beat, lack of auscultatable sounds from the gastrointestinal tract, and anorexia. Rectal temperature was 38.4℃ and respiratory rates were moderately increased. There were slight signs of acute colic. The broodmare died one day after non-specific treatment of fluids, nutriment, antibiotics and non-steroidal anti-inflammatory drug. The cause of death was strangulation of the small intestine through a diaphragmatic hernia. The rent was about 2 cm in diameter and located in the central right part of diaphragm. Around 60 cm of small intestine was protruded into thoracic cavity through the rent. The cause of the hernia could not be ascertained. The broodmare had been pastured with many other horses, and the groom had not noticed any aggressive behavior among them. It was, however, speculated that trauma by stallion's attack may have been the cause of the diaphragmatic hernia, because the new horse may be the object of behaviors ranging from mild threats to seriously aggressive kicking, squealing, rearing, and biting.
Mostrar más [+] Menos [-]Electron microscopical study on the cecal development in fetuses and neonates in Korean native goats
1999
Cho, G.H. | Kim, C.S. (Gyeongsang National University, Chinju (Korea Republic). Institute of Animal Medicine, College of Veterinary Medicine) | Lee, J.H. (Ulsan University, Ulsan (Korea Republic). College of Medicine)
The morphological studies on the cecal development in the 60-, 90-, and 120-day-old fetuses and the newborns of Korean native goats were investigated by scanning and transmission electron microscopy. The results were summarized as follows; Scanning electron microscopic studies: 1. In the 60-day-old fetuses, fold-like shpaes protrusion oon the cecal mucosa surface appeared. In the 90-day-old fetuses, the cecal villi appeared to be columnar shpaes. In the 120-day-old fetuses, the cecal villi showed variou tongue-like or columnar shpaes. In the newborns, only the rudimental trace of the villi and the intestinal glands were observed. 2. In the 60-day-old fetuses, the cecal epithelia were simple columnar in some areas and stratified columnar in others, and the epithelial cells contained nuclei, nucleoli, ER, mitochondria, Golgi complexes, zonula occuludens, desmosomes, digitiform intercellular junctions, and large masses of the glycogen granules. 3. In the 90-day-old fetuses, the cecal epithelia were simple columnar in some area and stratified columnar in other. The microvilli of the cecal epithelia became much larger and longer than those in the 60-day-old fetuses, and intercellular junctions were developed, and increased numbers of ER, mitochondria, Golgi complexes were observed and the goblet cells contained a lot of the secretory granules. 4. In the 120-day-old fetuses, the cecal epithelia were only columnar in all areas. Microvilli and cytoplasmic organelles were well developed and the irregular annular nuclei were observed. 5. In the newborns, the cecal epithelia were covered with extensive microvilli, and the goblet cells with secretory granules were protruded into lumen. And some goblet cells secreted the secretory granules into the lumen.
Mostrar más [+] Menos [-]The effects of electroacupuncture on stomach and cecum motility in horses
1998
Kim, B.S. (Korea Racing Association, (Korea Republic). Equine Hospital) | Choi, H.I. (Seoul National University, Suwon (Korea Republic). College of Veterinary Medicine)