• Korean Journal of Veterinary Research
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• v.63 no.1
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• pp.7.1-7.5
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• 2023

Two 1-year-old Korean native steers in the same herd presented severe hemorrhagic diarrhea. Case 1 had severe dehydration and died after 3 days, whereas case 2 had anorexia, depression, and severe diarrhea with mucus and blood. Only case 2 was necropsied, and bovine viral diarrhea virus-2a (BVDV2a) was detected in the tissues of its alimentary tract. Gross lesions, including erosion, ulceration, and extensive hemorrhage, were observed in the digestive tract mucosa. Immunohistochemistry revealed marked positive staining for BVDV2a antigen in the large intestine. These findings are indicative of hemorrhagic disease caused by BVDV2a in a native Korean steer.

• Korean Journal of Veterinary Service
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• v.23 no.3
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• pp.301-306
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• 2000

In an outbreak of acute porcine diarrhea in newborn piglets, an etiological study was carried out using piglets submitted in Cheju Province Institute for Livestock Promotion(Cheju Veterinary Service for the disease diagnosis). Sixteen piglets(2-7 days old) were collected from 4 farms during outbreaks of diarrhea disease(from January to April 2000). Specimens were taken after necropsy and examined by immunohistochemistry using of monoclonal antibodies for porcine epidemic diarrhea(PED) virus, transmissible gastroenteritis(TGE) virus, and porcine rotavirus. Immunohistochemistry showed that PED virus antigens, but both TGE virus and rota virus antigens not, were localized in the some epithelial cells of the intestines of 14 animals among 16 piglets examined. PEB virus antigens were mainly detected in the cytoplasm of enterocytes. Infected cells, which were most abundant in the villous epithelial cells of the jejunum and ileum, were uncommon in the crypt, epithelial cells, the lamina propria and Peyer's patches of piglets examined. The results suggest that PED virus is one of the most prevailing agents in an outbreak of fatal diarrhea in newborn piglets on Cheju island and PED virus was need to further study to prevent this disease.

• Korean Journal of Veterinary Service
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• v.46 no.1
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• pp.35-45
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• 2023

Pathogenic Escherichia coli is the cause of a wide range of diseases in pigs, including diarrhea, edema disease, and septicemia. Diarrhea caused E. coli may result in significant economic losses, making pathogenic E. coli an important pathogen for the swine industry. This study investigated the prevalence of virulence factor genes, antimicrobial resistance phenotypes, and resistance genes in E. coli isolated from feces of piglets in Korea between 2017 and 2020. As a result, 119 pathogenic E. coli isolates were obtained from 601 fecal samples. The F4 adhesin gene and the STb enterotoxin gene were commonly present in E. coli isolated from diarrhea samples. The dominant virulotypes of isolates from diarrhea samples were STb, Stx2e, and F4:LT:STb. More than 80% of the screened isolates were resistant to ampicillin, sulfisoxazole, chloramphenicol, or tetracycline. To confirm the resistance mechanisms for β-lactam or quinolone, we investigated the genotypic factors of resistance. Each of the ceftiofur-resistant E. coli produced an extended-spectrum β-lactamase encoded by bla_CTX-M-14, bla_CTX-M-27, and bla_CTX-M-55. And all ciprofloxacin-resistant E. coli harbored mutations in quinoloneresistance-determining-regions. In addition, some of the ciprofloxacin-resistant E. coli contained the plasmid-mediated-quinolone-resistance genes such as qepA, qnrB1, or qnrD. This study has confirmed that the F4 fimbria and the STb enterotoxin are the most predominant in pathogenic E. coli isolated from piglets with diarrhea in Korea and there is a great need for responsible and prudent use of antimicrobials to treat colibacillosis.

• Clinical and Experimental Pediatrics
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• v.55 no.3
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• pp.77-82
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• 2012

Human astrovirus (HAstV) is a major cause of acute diarrhea among children, resulting in outbreaks of diarrhea and occasionally hospitalization. Improved surveillance and application of sensitive molecular diagnostics have further defined the impact of HAstV infections in children. These studies have shown that HAstV infections are clinically milder (diarrhea, vomiting, fever) than infections with other enteric agents. Among the 8 serotypes of HAstV identified, serotype 1 is the predominant strain worldwide. In addition to serotype 1, the detection rate of HAstV types 2 to 8 has increased by using newly developed assays. HAstV is less common compared with other major gastroenteritis viruses, including norovirus and rotavirus; however, it is a potentially important viral etiological agent with a significant role in acute gastroenteritis. A better understanding of the molecular epidemiology and characteristics of HAstV strains may be valuable to develop specific prevention strategies.

• Korean Journal of Veterinary Research
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• v.60 no.3
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• pp.183-186
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• 2020

This paper describes the development of neurological signs of two prematurely born calves four days after birth. The pathological examination results indicated fibrinopurulent polyserositis, including meningoencephalitis with suppurative bronchopneumonia. Bovine viral diarrhea virus subtype 2a was detected in most of the internal organs, and the bacterial colonies cultured from the samples were identified as Klebsiella (K.) pneumoniae. Molecular analysis via multilocus sequence typing identified a different K. pneumoniae isolate in each calf-type 14 in calf A and type 65 in calf B. This is the first report identifying K. pneumoniae sequence types 14 and 65 in cattle.

• Journal of Sasang Constitutional Medicine
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• v.25 no.4
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• pp.277-288
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• 2013

Objectives This study was aimed to propose the guideline of the diarrhea in Sasang Constitutional Medicine. Methods 1) Literature search It was investigated that the prescriptions stated the diarrhea as a main and accessory symptoms to be treated in "Donguisasangshinpyun", "Donguisusebowon Sasang Chobongwon", "Donguisusebowon Gabobon", "Donguisusebowon Sinchukbon", "Dongmuyugo" 2) Clinial paper search (1) The foreign papers were searched by using the search word with 'Sasang AND Diarrhea' in pubmed (http://www.ncbi.nlm.nih.gov/pubmed/) and The Cochrane Library(http://www.thecochranelibrary.com) (2) The domestic papers were searched by using the search word with 'Soeumin AND Diarrhea', 'Soyangin AND Diarrhea', 'Taeeumin AND Diarrhea', 'Taeyangin AND Diarrhea', 'Sasang AND Diarrhea' in NDSL (http://www.ndsl.kr), KISS(http://kiss.kstudy.com), Oasis(http://oasis.kiom.re.kr), RISS(http://www.riss.kr) (3) The extracted factors were the evaluations on the mainly complained symptom, adopted four constitutional therapy and efficacy. Results & Conclusions The guidelines for treating the diarrhea in the Four Constitutional Medicine are as follows. 1) It is to categorize the constitution. 2) The diarrhea of taeeumin is prescribed with 'A Series of Taeeumjowi-tang, Galgeunhaegi-tang, Cheongsimyeonja-tang, Sahyang-san, etc'. by classifying into cold, fever, consumption and addiction. 3) The diarrhea of soyangin is regarded as an internal disease and it is prescribed with 'Baekhaobuja-tang, Baekhaobujaijung-tang, etc'. by classifying taeeum symptom and so-yin symptom. 4) The diarrhea of soeumin is Mangeum-disease and 'Jeoryeongchajeonja-tang, Hyeongbangsabaek-san, Hwalseokgosam-tang, Hyeongbanggihwang-tang, etc'. is prescribed depending on the complication.

• Korean Journal of Veterinary Research
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• v.37 no.2
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• pp.451-456
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• 1997

120 heads of korean native calves were examined of serum protein by using cellulose acetate electrophoresis. During 20 days since the calves were purchased, serum protein, fibrinogen values and plasma : fibrinogen ratio were examined in the calves with respiratory and diarrheal disease. The result obtained in this investigation were as follows : 1. Among the 120 heads of calves that were purchased from market, 14 heads(22%) of calves were occurred respiratory disease, and 12 heads(20%) of calves are occurred diarrhea. Occurrence of respiratory disease was 14.5(4~20) days in average and diarrhea was 9.6(2-15) days after they had been purchased. 2. Serum protein fraction were analyzed by cellulose acetate electrophoresis. ${\beta}-globulin$, A/G ratio and ${\beta}_2-globulin$ values were decreased in the calves with respiratory disease. Especially, ${\beta}_2-globulin$ were significantly decreased. In calves with diarrhea, there was no change in ${\beta}-globulin$ values. ${\beta}_2-globulin$ values were higher than that of the normal and respiratory diseased calves. 3. ${\alpha}-globulin$ values were increased in both of calves with diarrhea and respiratory disease. This tendency was due to increase ${\alpha}_2-globulin$ values. 4. The $\gamma$-globulin value of calves with diarrhea was the lowest among the 3 groups. 5. The total protein values of normal calves were $7.0{\pm}1.1g/dl$ and that of respiratory and diarrheal diseased calves were $6.9{\pm}0.9g/dl$ and $6.6{\pm}0.8g/dl$, respectively. Total protein value of calves with diarrhea was lower than that of normal and respiratory diseased calves. Globulin value of calves with diarrhea was the lowest among them. The low value of total protein in diarrheal diseased calves was due to decrease globulin values. 6. The fibrinogen values of calves with respiratory disease ($643{\pm}189mg/dl$) were significantly higher than that of normal calves($533{\pm}135mg/dl$) and calves with diarrhea($572{\pm}188mg/dl$). The plasma : fib. ratio of respiratory diseased calves was $12.0{\pm}4.9$, normal calves was $13.8{\pm}3.5$ and diarrheal diseased calves was $12.8{\pm}4.6$. The ratio of the calves with respiratory disease was significantly decreased.

• Journal of Sasang Constitutional Medicine
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• v.24 no.2
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• pp.61-70
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• 2012

1. Objectives : The aim of this study was to report significant improvement of chronic diarrhea and hematochezia after treatment with Dojeokgangki-tang in a Soyangin Patient with Crohn's Disease. 2. Methods : The patient's subjective and objective symptoms were observed daily throughout the hospitalization period, and the Crohn's disease activity index(CDAI) was calculated to gauge the progress or lack of progress. 3. Results : The symptoms of diarrhea and hematochezia disappeared by the end of the hospitalization period without recurrence, and the CDAI score dropped from 92.5 to 47. 4. Conclusions : A patient with Crohn's disease, who was in the state of repetitive relapse and remission after long term clinical courses was treated with Dojeokgangki-tang in a short period and the the symptoms of diarrhea and hematochezia disappeared without recurrence. Then the patient could stop taking corticosteriods and taper off immune-suppressing drugs.

• Parasites, Hosts and Diseases
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• v.48 no.1
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• pp.9-13
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• 2010

Pentatrichomonas hominis is considered a commensal protozoan in the large intestine of a number of mammalian hosts, such as cats, dogs, and non-human primates. The resulting infections, which can induce diarrhea, have been attributed to opportunistic overgrowth of P. hominis. This study was performed to confirm the P. hominis infection and its molecular characterization from the feces of puppies with diarrhea. Fecal samples were obtained from 14 German shepherd puppies with diarrhea over 1 week (7 females and 7 males, 2-9 months of age) residing on a dog farm in August 2007. Species-specific PCR assay identified P. hominis 18S rRNA genes in 3 of the 14 puppies (1 female and 2 males; 1 aged 2 months and 2 aged 9 months). This phylogenetic analysis established that P. hominis belonged to the 1st clade, which is comprised of Bos taurus and Felines.

• Clinical and Experimental Pediatrics
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• v.46 no.3
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• pp.308-311
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• 2003

Congenital chloride diarrhea is a serious autosomal recessive disease, and defect of intestinal electrolyte absorption that involves, specifically, $Cl^-/{HCO_3}^-$ exchange in the distal part of the ileum and colon. The clinical feature is dominated by profuse, watery diarrhea containing high concentrations of chloride(>90 mmol/L) and sodium. The chloride loss results in severe dehydration with a hypochloremic alkalosis. The molecular pathology involves an epithelial $Cl^-/{HCO_3}^-$ exchanger protein. Mucosal ion transport is affected to differing degrees and the severity of the disease may thus vary. Recently, a gene defect on chromosome 7 has been identified. However, there was a deficit in replacement of fluid and electrolyte, abdominal distension remained and the character of stools was watery. We report a case of congenital chloride diarrhea in a premature female who presented with watery diarrhea containing high concentrations of chloride and abdominal distension.