• Animal Bioscience
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• 제37권5호
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• pp.952-961
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• 2024

Objective: Stocking density (SD) is an important issue in the poultry industry, which is related to the production performance, intestinal health and immune status. In the present study, the effects of SD on the metabolism and homeostasis of uric acid as well as the related functions of the liver and kidney in ducks were examined. Methods: A total of 360 healthy 56-day-old Shan-ma ducks were randomly divided into the low stocking density (n = 60, density = 5 birds/m²), medium stocking density (n = 120, density = 10 birds/m²) and high stocking density groups (HSD; n = 180, density = 15 birds/m²). Samples were collected in the 3rd, 6th, and 9th weeks of the experiment for analysis. Results: The serum levels of uric acid, lipopolysaccharide and inflammatory cytokines (interleukin-1β [IL-1β], IL-8, and tumor necrosis factor-α [TNF-α]) were increased significantly in the HSD group. Serious histopathological lesions could be seen in both the livers and kidneys in the HSD group in the 9th week. The mRNA expression levels of inflammatory cytokines (IL-8 and TNF-α) and related pathway components (toll-like receptor 4, myeloid differentiation primary response gene 88, and nuclear factor-κB) were increased significantly in both the livers and kidneys in the HSD group. The mRNA expression levels of enzymes (adenosine deaminase, xanthine oxidase, phosphoribosyl pyrophosphate amidotransferase, and phosphoribosyl pyrophosphate synthetase 1) related to the synthesis of uric acid increased significantly in the livers in the HSD group. However, the mRNA expression level of solute carrier family 2 member 9, which plays an important role in the excretion of uric acid by the kidney, was decreased significantly in the kidneys in the HSD group. Conclusion: These results indicated that a higher SD could cause tissue inflammatory lesions in the liver and kidney and subsequently affect the metabolism and homeostasis of uric acid, and is helpful for guiding decisions related to the breeding and production of ducks.

• 대한수의사회지
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• 제21권8호
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• pp.500-502
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• 1985

Approximately 300 canaries died of uncertain disease in a canaries breeding farm in Jeon-Ju, between January in 1984 and April in 1985. To detect causative agents, the samples (livers, intestine, heart, and feces) were taken from 15 canaries which were in

• 대한수의사회지
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• 제26권9호
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• pp.543-553
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• 1990

This report describes the cellular changes induced in the livers of ducklings by a sin91e administration of aflatoxin B$_1$ produced by Korean Industrial Strain of the Aspergillus flavus, in order to examine the toxicity of the minimum dose of

• 대한수의학회지
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• 제20권1호
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• pp.29-31
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• 1980

The outbreak of hepatosis dietetica from 2 different herds of pigs was diagnosed for the first time in Korea. The livers from 5 affected pigs showed yellow atrophy, necrotic foci and ecchymotic hemorrhages anatomically, and hemorrhagic necrotic hepatitis histopathologically.

• Asian-Australasian Journal of Animal Sciences
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• 제22권6호
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• pp.865-870
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• 2009

In this study, we have attempted to understand the effects of taurine on serum and liver concentrations of cholesterol and triglycerides in broiler chickens and mice in the post-absorptive state, and on in vitro protein synthesis in the livers of broiler chickens and laying hens, as well as the effects of taurine on in vivo protein synthesis in the liver of mice. The experimental animals were subjected to 24 h of starvation in order to perpetuate a post-absorptive state. Serum concentrations of high density lipoprotein cholesterol and triglycerides were significantly (p<0.05) higher in the taurine groups than in the controls in both the broilers and the mice. However, taurine resulted in a significant (p<0.05) reduction in liver concentrations of total cholesterol and triglycerides, relative to what was seen in the control groups of both animals. Taurine stimulated the in vitro synthesis of 57-kDa, 40-kDa and 23-kDa proteins in the liver of broilers, but inhibited the in vitro synthesis of 54-kDa, 37-kDa and 24-kDa proteins. Taurine in the liver of laying hens exerted effects on in vitro protein synthesis, with the exception of the 26-kDa protein which was not detected in broiler liver, but was inhibited by taurine in the liver of laying hens. Unlike the findings regarding in vitro protein synthesis in the liver of broilers or laying hens, taurine appeared to stimulate the synthesis of only two proteins, a 47-kDa and a 40-kDa protein, in the liver of mice. Overall, theses findings indicate that taurine treatment results in a reduction in cholesterol and triglyceride concentrations, and also affects protein synthesis in the livers of broilers, laying hens, and mice.

• Applied Microscopy
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• 제39권2호
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• pp.191-197
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• 2009

본 연구는 고지혈을 일으킨 햄스터에게 나린진과 양파즙을 투여하여 고지혈을 낮추는 효과를 조사하고자 하였다. 고지혈 햄스터는 basal diet에 10% 코코넛오일과 0.05% 콜레스테롤로 고지혈을 일으켰다. 실험군은 5군의 그룹으로 나뉘어 40일간 실험식이를 각각 제공하였는데 즉 정상군, 대조군, 50%의 양파즙과 50%의 물을 혼합한군(OEN), 100% 양파즙군(OES), 100% 양파즙과 1% 나린진을 혼합한군(OESN)이다. 나린진을 처리한 그룹에서는 혈청 총 콜레스테롤, 중성지질 레벨은 현저하게 감소되었고 HDL 콜레스테롤은 증가하였다. 한편 간조직은 대조군과 비교하여 미토콘드리아와 핵의 형태가 현저하게 달랐다. 결론적으로 나린진을 함유한 양파즙은 간에서 콜레스테롤을 감소시켰다. 양파즙과 나린진추출물의 혼합은 콜레스테롤을 감소시키는 시너지 효과를 나타내었다.

• 대한한방내과학회지
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• 제30권2호
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• pp.410-421
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• 2009

Objective : The aim of this study is to investigate the preventive effect of Injinchunggan-tang (YJCGT) & Injinysaryung-san (YJSRS) on MCD-diet-induced NASH in A/J mice. Methods : A/J mice were divided into 4 groups: Normal group (normal diet without any treatment). Control group (MCD diet only), YJCGT group (MCD diet with YJCGT), and YJSRS group (MCD diet with YJSRS). After 5 weeks, body weight, liver weight, biochemical parameters for liver function test, histological changes, and real-time PCR were assessed. Results : Mice lost body weight with the MCD diet and the YJCGT and YJSRS groups lost less than the control group, though showed no statistical significance. Liver weights were decreased by the MCD diet, but not significantly. In the liver function test, all the values were increased with the MCD diet, though some did not show significance. Alp and ALT levels were significantly less increased by YJCGT compared to the normal (p<0.05). All values were decreased or increased compared to the control by treatment though showed no significance possibly due to insufficient sample numbers. In histological findings of the livers. MCD-diet induced severe fatty change and collagen accumulation in the livers, but this fatty change was reduced in the YJCGT and YJYRS groups and fibrogenesis was inhibited significantly with p<0.05 and p<0.01, respectively. In real-time PCR analysis, YJCGT and YJYRS showed inhibitory effect on liver fibrogenesis by reducing associated gene expressions caused by MCD diet. Conclusion : YJCGT and YJSRS are considered to be possible candidates for the treatment of patients with NASH and/or liver fibrosis.

• 동의생리병리학회지
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• 제17권6호
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• pp.1448-1452
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• 2003

The water extract of Scutellariae radix was treated to rat and the primary culture of hepatocytes, and the expressions of several glutathione S-transferase (GST) isozymes and the activity of GST Yc1/2 were investigated by Western blot and by the use of HPLC. The results were obtained as follows: The water extract of Scutellariae radix did not induce the expressions of cytosolic GST Ya and GST Yp in rat livers. But, the extract increased the expression of cytosolic GST Yc1/2 to 2-4 fold higher than control. The expression of GST Yc1/2 in the primary culture of rat hepatocytes was induced by the water extract of Scutellariae radix in a dose-dependent manner, reaching 21-fold over control with 50 ㎍/㎖ treatment. The induction of the expression of GST Yc1/2 in rat livers increased the formation of AFB₁-glutathione conjugate from AFB₁-8,9-epoxide which was made in the metabolism of AFB₁.

• 한국콘텐츠학회논문지
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• 제10권7호
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• pp.259-267
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• 2010

흰쥐에게 ethanol과 xylene을 투여시 간손상 정도를 알아보기 위해 정상적인 S-D계 수컷 흰쥐를 4군으로 나누어 실험을 수행하였다. 생화학적 검사 결과에서 혈청 AST, ALT, LDH활성은 대조군보다 ethanol 투여군, xylene투여군, ethanol+xylene투여군으로 갈수록 활성이 유의하게 증가되었으며, 그 증가율은 ethanol+xylene투여군에서 가장 높게 나타났다. 산화적 손상정도를 알아보기 위한 혈청 MDA함량은 대조군보다 ethanol투여군과 xylene투여군 그리고 ethanol+xylene투여군으로 갈수록 활성이 증가되었으며, 그 증가율은 ethanol+xylene투여군에서 가장 높게 나타났다. 그러나 혈청 ALP는 대조군에 비해 모두 감소하였다. Xylene의 투여시 최종대사산물인 요 중 m-methylhippuric acid는 대조군에 비해 xylene투여군과 ethanol+xylene투여군에서 증가되었으며, 그 증가율은 xylene투여군이 ethanol+xylene투여군보다 더 높게 나타났다. 간 조직검사에서는 xylene투여군은 지방변화를, ethanol+xylene 투여군은 경도~중등도의 괴사와 염증을 보였다. 이상의 혈청학적 검사와 조직학적 검사결과 xylene 단독 투여에 비하여 ethanol과 xylene을 병행 투여했을 때 간손상이 더 크게 초래된 것으로 나타났다.

• Applied Microscopy
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• 제31권4호
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• pp.375-383
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• 2001

한국산 관박쥐과의 관박쥐 (Rhinolophus ferrmmequinum korai)와 애기박쥐과 Myotis속에 속하는 큰발웃수염 박쥐 (Myotis macrodactylus), 물웃수염박쥐 (Myotis daubentonii ussrinesis) 및 관코박쥐 (Murina leucogaster intermedia)의 활동기 간장 조직을 투과전자현미경으로 관찰하여 이들의 미세구조적 특징을 규명하고 이들 간에 존재하는 차이를 비교 고찰하고자 하였다. 관박쥐는 세포질 내에 $10\sim20$개의 크고 둥근 사립체를 가지고 있었으며, 특히 과산화소체가 잘 발달되어 있었다. 큰발웃수염박쥐는 간세포간 사이의 연접복합체, 특히 부착반점이 잘 발달되어 있었다. 디세강과 동굴모세혈관 속은 섬세한 물질로 채워져 있었다. 물웃수염박쥐는 세포질 내에 당원과립을 많이 가지고 있었으며, 디세강과 동양혈관 속은 섬세한 물질로 채워져 있었다. 관코박쥐는 동굴모세혈관에 기저막이 잘 발달되어 있었으며, Kupffer 세포와 Ito 세포는 관찰되지 않았다. 이상의 결과는 같은 시기의 한국산 박쥐의 간장에서도 종에 따라서 미세구조적 차이가 나타남을 보여주는 것으로 이들은 이들의 생활환경과 식이와 관련이 있을 것으로 추정된다.