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Candida albicans urinary tract infection in a Shih Tzu dog with immune-mediated hemolytic anemia
2017
Jang, I.S., Kangwon National University, Chuncheon, Republic of Korea | Yoon, W.K., Kangwon National University, Chuncheon, Republic of Korea | Hyun, C., Kangwon National University, Chuncheon, Republic of Korea
An 8-year-old castrated male Shih Tzu dog (weighing 7.0 kg) presented with anemia and lethargy. Initial diagnosis indicated immune-mediated hemolytic anemia. During therapy, a secondary urinary infection, probably due to the immune suppressive therapy, was diagnosed. Subsequent diagnostic tests, including urinalysis and urine culture, indicated candidal cystitis. Despite ketoconazole therapy for candidal cystitis, the dog died suddenly. A Candida albicans infection was confirmed upon postmortem evaluation. Prolonged immunosuppressive therapy might be the cause of this infection. This is the first case report describing a Candida albicans urinary tract infection accompanied by hemolytic anemia in a dog in Korea.
Show more [+] Less [-]Hangover relieving effect of Sanghwang mushroom mycelium cultured in germinated buckwheat
2017
An, Y.J., Jeju National University, Jeju, Republic of Korea | Cho, S.M., Jeju National University, Jeju, Republic of Korea | Kim, M.S., Jeju National University, Jeju, Republic of Korea | Moon, H.H., Jeju National University, Jeju, Republic of Korea | Park, D.S., Jeju Sanghwang Co.,Ltd., Jeju, Republic of Korea | Jeon, N.G., Jeju Sanghwang Co.,Ltd., Jeju, Republic of Korea | Lee, Y., Jeju National University, Jeju, Republic of Korea | Han, C.H., Jeju National University, Jeju, Republic of Korea
The present study was performed to evaluate the hangover relieving effect of germinated buckwheat (GB) and Sanghwang mushroom mycelium cultured in GB (SGB). Both GB and SGB showed 1,1-diphenyl-2-picrylhydrazyl radical scavenging activities and significantly increased (p less than 0.001) aldehyde dehydrogenase (ALDH) activities; up to 140% increase at concentrations of 16 μL/mL. Locomotor activity test results from alcohol-SGB and alcohol-GB groups showed improved motor activities over that of the alcohol-water group at 90 min post-administration. Both alcoholGB and alcohol-SGB groups had significantly reduced (p less than 0.001) alcoholand aldehyde concentrations in blood compared to those in the alcohol-water group at 90 min post-administration. Based on cDNA microarray analysis, expressions of ALDH genes ALDH1a7 and ALDH18a1 and cytochrome P450 (CY450) gene CYP4a30b were upregulated in the alcohol-GB and alcohol-SGB groups compared to levels in the control group. Overall, the results suggest that both GB and SGB have hangover relieving effects by reducing blood acetaldehyde levels. The molecular mechanisms may involve ALDH activation and upregulated expression of alcohol metabolism-related genes such as ALDH and CYP450.
Show more [+] Less [-]Evaluation of immunocontraceptive vaccine composed of gonadotropin-releasing hormone conjugated with granulocyte-macrophage colony-stimulating factor in male rats
2017
Park, B.J., Konkuk University, Seoul, Republic of Korea | Kim, Y.H., Konkuk University, Seoul, Republic of Korea | Ahn, H.S., Konkuk University, Seoul, Republic of Korea | Han, S.H., Konkuk University, Seoul, Republic of Korea | Go, H.J., Konkuk University, Seoul, Republic of Korea | Lee, J.B., Konkuk University, Seoul, Republic of Korea | Park, S.Y., Konkuk University, Seoul, Republic of Korea | Song, C.S., Konkuk University, Seoul, Republic of Korea | Lee, S.W., Konkuk University, Seoul, Republic of Korea | Choi, I.S., Konkuk University, Seoul, Republic of Korea
Surgical castration performed to reduce male-associated problems results in pain and microbial infections in male animals. Therefore, immunocontraception, which is mediated by the animal's own antibodies against reproductive hormones, has been recommended as an alternative to surgical castration when considering the animal's welfare. In this study, a new immunocontraceptive vaccine composed of six tandem copies of gonadotropin-releasing hormone (GnRH) fused to rat granulocyte-macrophage colony-stimulating factor (GM-CSF) was developed, and its efficacy was evaluated in male rats. Three different doses (10, 50, and 100 μg) of recombinant GM-CSF-GnRH protein were injected three times at intervals of two weeks into male rats. The rats vaccinated with three doses of GM-CSF-GnRH produced a significantly higher level of antibodies against GnRH than that in the negative control rats. Severe atrophy of gonads was observed in rats vaccinated with three doses of GM-CSF-GnRH but not in the negative control rats. The results reveal that the new GnRH vaccine conjugated with rat GM-CSF induces efficient immunocontraception in male rats. This formulation of the immunocontraceptive vaccine would be applicable to both domestic and pet male animals.
Show more [+] Less [-]Antihypertensive effect of ethanol extracts of Aralia elata in spontaneously hypertensive rats
2017
Jin, J.Y., Jeju National University, Jeju, Republic of Korea | Park, E.H., Jeju National University, Jeju, Republic of Korea | Jeon, Y.A., Jeju National University, Jeju, Republic of Korea | Lee, Y.J., Jeju National University, Jeju, Republic of Korea
Antihypertensive effects of ethanol extracts of Aralia elata (Miq.) Seem. (AE) were investigated in spontaneously hypertensive rats (SHR). SHR aged 14 weeks were treated for 8 weeks with AE (10 or 50 mg/kg/day) or amlodipine besylate (Am; 10 mg/kg/day) orally. Hypertension results in injury to several organs and can produce a significant increase in malondialdehyde (MDA) content as a result of lipid peroxidation and endothelial dysfunction. In this study, oral administration of AE and Am significantly reduced systolic blood pressure, organ weight index, and MDA content in tissues but increased significantly the plasma nitrite and nitrate concentrations. The endothelium-dependent relaxant activities of acetylcholine in norepinephrine (NE)-precontracted aorta were increased in AE- and Amtreated rats. Particularly strong endothelium-dependent relaxant activities were observed in AE-treated (50 mg/kg) rats. The endothelium-independent relaxant activities of sodium nitroprusside in NE-precontracted aorta were not changed. The results of this study suggest that AE has both antihypertensive and end-organ protective effects in SHR.
Show more [+] Less [-]Effects of dietary acetaminophen and vitamin C supplement on serum cortisol and tumor necrosis factor-alpha concentrations in pigs vaccinated with foot-and-mouth disease vaccine
2017
Cha, C.N., Gyeongsang National University, Jinju, Republic of Korea | Lee, B.J., Chungbuk National University, Cheongju, Republic of Korea | Park, E.K., Kosin University, Busan, Republic of Korea | Yoo, C.Y., Gyeongnam Provincial Namhae College, Namhae, Republic of Korea | Kim, S., Gyeongsang National University, Jinju, Republic of Korea | Lee, H.J., Gyeongsang National University, Jinju, Republic of Korea
This study evaluated the effect of a combination of acetaminophen and vitamin C (CAV) on reducing serum cortisol and tumor necrosis factor-alpha (TNF-alpha) concentrations in piglets vaccinated with foot-and-mouth disease (FMD) vaccine. Piglets were vaccinated with FMD vaccine and treated with CAV at concentrations of 0.0, 0.5, 1.0, and 2.0 kg/ton feed (P-CON, AD-1, AD-2, and AD-3, groups, respectively) for 5 days post-vaccination. Cortisol and TNF-alpha levels at 5 days post-treatment in the AD-1-3 groups were significantly lower than that in the P-CON group (p less than 0.05). There were no significant differences between AD-2 and AD-3 groups and non-vaccinated, non-CAV-treated piglets.
Show more [+] Less [-]Temporal and subcellular distributions of Cy5.5-labeled hyaluronic acid nanoparticles in mouse organs during 28 days as a drug carrier
2017
Lin, C., Jilin Agricultural University, Changchun, China | Kim, S.B., Chungbuk National University, Cheongju, Republic of Korea | Yon, J.M., Chungbuk National University, Cheongju, Republic of Korea | Park, S.G., Chungbuk National University, Cheongju, Republic of Korea | Gwon, L.W., Chungbuk National University, Cheongju, Republic of Korea | Lee, J.G., Chungbuk National University, Cheongju, Republic of Korea | Baek, I.J., Asan Medical Center and University of Ulsan, Seoul, Republic of Korea | Lee, B.J., Chungbuk National University, Cheongju, Republic of Korea | Yun, Y.W., Chungbuk National University, Cheongju, Republic of Korea | Nam, S.Y., Chungbuk National University, Cheongju, Republic of Korea
Temporal and subcellular distributions of hyaluronic acid (HA) as a degradable nanoparticle (NP) in animals were investigated to determine if HA-NP could be utilized as an appropriate drug delivery system. After mice were intravenously injected with 5 mg/kg of Cy5.5-labeled HA-NP sized 350-400 nm or larger HA-polymers, the fluorescence intensity was measured in all homogenized organs from 0.5 h to 28 days. HA-NP was greatly detected in spleen, liver and kidney until day 28, while it was maintained at low levels in other organs. HA-polymer was observed at low levels in all organs. HA-NP quantities in spleen and liver were reduced until day 3, but increased sharply between days 3 and 7, then decreased again, while their HA-polymers were maintained at low levels until day 28. In kidneys, both HA-NP and HA-polymer showed high levels after 0.5 h of administration, but steadily decreased until day 28. According to ultrastructural analyses, HA-NP was engulfed in Kupffer cells of liver and macrophages of spleen and kidney at day 1 and was accumulated in the cytoplasm of kidney tubular cells at day 7. Overall, these findings suggest that HA-NP could be considered a desirable drug carrier in the liver, kidney, or spleen.
Show more [+] Less [-]Prevalence and pathologic study of porcine salmonellosis in Jeju
2017
Yang, H.S., Jeju Self-Governing Provincial Veterinary Research Institute, Jeju, Republic of Korea | Kang, S.C., Optipharm Inc., Cheongju, Republic of Korea | Kim, A.R., Animal and Plant Quarantine Agency, Gimcheon, Republic of Korea | Jung, B.Y., Animal and Plant Quarantine Agency, Gimcheon, Republic of Korea | Kim, J.H., Jeju National University, Jeju, Republic of Korea
Salmonella (S.) Typhimurium is highly contagious, and its infection may rapidly spread within pig populations of herd. According to the survey (1,191 pigs) from 2003 to 2012, 155 pigs (13.0%) were diagnosed as salmonellosis in Jeju. Major porcine salmonellosis cases (88.4%) were concentrated in 4- to 12-week-old weaned pigs, but 6 pigs (3.9%) under 4 weeks old were also diagnosed. Based on the histopathologic examinations, ulcerative enteritis (63.9%) in the large intestine and/or paratyphoid nodules formation (57.4%) in the liver were most prevalent lesions in porcine salmonellosis. Single infection of S. Typhimurium and mixed infection with more than 2 pathogens were detected in 38 (24.5%) and 117 (75.5%) in pigs, respectively. Co-infections of Porcine reproductive and respiratory syndrome virus and Porcine circovirus type 2 were very common in porcine salmonellosis in Jeju and detected in 84 (54.2%) and 59 (38.1%) pigs, respectively. Based on the serotyping tests using 41 bacterial isolates, S. Typhimurium and S. Rissen were confirmed in 39 (95.1%) and 2 (4.9%) cases, respectively.
Show more [+] Less [-]A simultaneous occurrence of feline mammary carcinoma and uterine cystic endometrial hyperplasia in a cat
2017
Yoo, J.H., National Institute of Animal Science, Rural Development Administration, Wanju, Republic of Korea | Kim, O., Wonkwang University, Iksan, Republic of Korea
At the time of visiting, the cat was 6-year-old female Siamese cat. The mammary mass was solid and firm and measured 2 x 5 cm2 in greatest diameter. The uterus revealed thick uterine horn and cross sectioned wall. Histopathologically, the mammary mass revealed feline mammary carcinoma. In the uterus, cystic endometrial hyperplasia was observed. Feline leukemia virus positive reaction was detected by polymerase chain reaction. As far as we know, this is the first report of the simultaneous feline mammary carcinoma and uterine endometrial cystic hyperplasia with Feline leukemia virus infection in a cat.
Show more [+] Less [-]Molecular surveillance of spotted fever group rickettsioses in wildlife and detection of Rickettsia sibirica in a Topi (Damaliscus lunatus ssp. jimela) in Kenya Full text
2017
Ndeereh, David(Kenya Wildlife Service Department of Veterinary Services) | Thaiyah, Andrew(University of Nairobi Department of Clinical Studies) | Muchemi, Gerald(University of Nairobi Department of Public Health, Pharmacology and Toxicology) | Miyunga, Antoinette A.(Kenya Wildlife Service Forensics and Genetics Laboratory)
Spotted fever group rickettsioses are a group of tick-borne zoonotic diseases caused by intracellular bacteria of the genus Rickettsia. The diseases are widely reported amongst international travellers returning from most sub-Saharan Africa with fever, yet their importance in local populations largely remains unknown. Although this has started to change and recently there have been increasing reports of the diseases in livestock, ticks and humans in Kenya, they have not been investigated in wildlife. We examined the presence, prevalence and species of Rickettsia present in wildlife in two regions of Kenya with a unique human-wildlife-livestock interface. For this purpose, 79 wild animals in Laikipia County and 73 in Maasai Mara National Reserve were sampled. DNA extracted from blood was tested using the polymerase chain reaction (PCR) to amplify the intergenic spacer rpmE-tRNAfMet and the citrate synthase-encoding gene gltA. Rickettsial DNA was detected in 2 of the 79 (2.5%) animals in Laikipia and 4 of the 73 (5.5%) in Maasai Mara. The PCR-positive amplicons of the gltA gene were sequenced to determine the detected Rickettsia species. This revealed Rickettsia sibirica in a Topi (Damaliscus lunatus ssp. jimela). This is the first report of spotted fever group rickettsioses in wildlife and the first to report R. sibirica in Kenya. The finding demonstrates the potential role of wild animals in the circulation of the diseases.
Show more [+] Less [-]Detection and prevalence of antimicrobial resistance genes in Campylobacter spp. isolated from chickens and humans Full text
2017
Reddy, Samantha(University of KwaZulu-Natal School of Life Sciences) | Zishiri, Oliver T.(University of KwaZulu-Natal School of Life Sciences)
Campylobacter spp. are common pathogenic bacteria in both veterinary and human medicine. Infections caused by Campylobacter spp. are usually treated using antibiotics. However, the injudicious use of antibiotics has been proven to spearhead the emergence of antibiotic resistance. The purpose of this study was to detect the prevalence of antibiotic resistance genes in Campylobacter spp. isolated from chickens and human clinical cases in South Africa. One hundred and sixty one isolates of Campylobacter jejuni and Campylobacter coli were collected from chickens and human clinical cases and then screened for the presence of antimicrobial resistance genes. We observed a wide distribution of the tetO gene, which confers resistance to tetracycline. The gyrA genes that are responsible quinolone resistance were also detected. Finally, our study also detected the presence of the blaOXA-61, which is associated with ampicillin resistance. There was a higher (p < 0.05) prevalence of the studied antimicrobial resistance genes in chicken faeces compared with human clinical isolates. The tetO gene was the most prevalent gene detected, which was isolated at 64% and 68% from human and chicken isolates, respectively. The presence of gyrA genes was significantly (p < 0.05) associated with quinolone resistance. In conclusion, this study demonstrated the presence of gyrA (235 bp), gyrA (270 bp), blaOXA-61 and tetO antimicrobial resistance genes in C. jejuni and C. coli isolated from chickens and human clinical cases. This indicates that Campylobacter spp. have the potential of resistance to a number of antibiotic classes.
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