• 한국동물위생학회지
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• 제22권1호
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• pp.61-70
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• 1999

This study is concerned with assessment of diethylnitrosamine(DEN) induced liver cell carcinogenesis by measurement of changes preceding the development of neoplasms. Therefore, it was undertaken to investigate the changes of liver-specific enzyme activities in rats (Sprague-Dawley) by ad libitum feeding of DEN. And also, as another objective index in urine, the level of urinary biopterin was measured by high performance liquid chromatography(HPLC) method. The results were as follows ; 1. Minor behavioral change, brittleness of hair and decreased amount of water and diet intake were observed in rats 7 weeks after DEN administration. 2. The body and liver weights were significantly(p<0.05) decreased in rats 11 weeks after DEN administration. 3. The ratio of liver weight to body weight was rather stable and not significantly decreased in the all treatment groups. 4. The liver specific enzyme activities(AST, ALT,$\gamma$-GTP) were significantly(p<0.05) increased in all treatment groups compared to control group. 5. Compared to normal level, urine biopterin level was significantly (p<0.05) increased in all treatment groups(p<0.05). In conclusion, this result confirmed that the DEN was one of the potent hepatocarcinogens. In experimental model of rats exposed to DEN, the results indicated that values of liver specific enzyme activities(AST, ALT, $\gamma$-GTP) and urine biopterin level could be useful complementary tumor indices.

• Archives of Plastic Surgery
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• 제38권4호
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• pp.527-530
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• 2011

Purpose: Liver transplantation is a groundbreaking section in the field of surgery. Nowadays over 90% of success rate is accomplished and life expectancy of the patients has been elongated. Patients are now seeking for surgical procedures including cosmetic plastic surgery. But these patients take immunosuppressive medication and steroids, which can increase the risk of wound infection, and delay wound healing. By reviewing the case of a 21-year-old liver transplant recipient who underwent mastopexy due to breast ptosis, we discussed about the matters we should consider when performing surgery in liver transplantation recipients. Methods: The patient was a 21-year-old female who received liver transplantation from her father. She was exposed to massive amount of steroids and immunosuppressants, which led to breast ptosis. The vertical and short horizontal incision mastopexy using a medial-based pedicle was done, 29 months after the liver transplantation. Results: On postoperative day 1, she was discharged. On day 10, sutures were removed and taping was applied. There was no sign of wound infection, wound dehiscence, hematoma or bleeding. The patient was followed up at 3, 6 and 9 months after the operation. Mild recurrence of the glandular ptosis was observed but revision was not required. Conclusion: We were able to successfully operate without any complications in the liver transplant recipient. With special attention and consideration, cosmetic plastic surgery can be safely performed in organ transplantation recipients.

• Korean Journal of Radiology
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• 제1권4호
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• pp.185-190
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• 2000

Objective: To document the imaging findings of hepatic cavernous hemangioma detected in cirrhotic liver. Materials and Methods: The imaging findings of 14 hepatic cavernous hemangiomas in ten patients with liver cirrhosis were retrospectively analyzed. A diagnosis of hepatic cavernous hemangioma was based on the findings of two or more of the following imaging studies: MR, including contrast-enhanced dynamic imaging (n = 10), dynamic CT (n = 4), hepatic arteriography (n = 9), and US (n = 10). Results: The mean size of the 14 hepatic hemangiomas was 0.9 (range, 0.5-1.5) cm in the longest dimension. In 11 of these (79%), contrast-enhanced dynamic CT and MR imaging showed rapid contrast enhancement of the entire lesion during the early phase, and hepatic arteriography revealed globular enhancement and rapid filling-in. On contrast-enhanced MR images, three lesions (21%) showed partial enhancement until the 5-min delayed phases. US indicated that while three slowly enhancing lesions were homogeneously hyperechoic, 9 (82%) of 11 showing rapid enhancement were not delineated. Conclusion: The majority of hepatic cavernous hemangiomas detected in cirrhotic liver are small in size, and in many, hepatic arteriography and/or contrast-enhanced dynamic CT and MR imaging demonstrates rapid enhancement. US, however, fails to distinguish a lesion of this kind from its cirrhotic background.

• 대한가정학회지
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• 제23권2호
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• pp.45-53
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• 1985

The influence of fat level and dietary fiber on serum and liver lipid concentration of the rat was investigated. Groups of rats were fed respectively 3%, 5%, 20% fat containing and free fiber diet until 5th week. From 5th week to 9th week high fat diet groups of rates were devided high fat diet group, high fat pectin supplemented diet group and high fat celulose supplemented diet group. Pectin and cellulose at 10% was supplemented to high fat diets. After rats were fed for 9 weeks, all rats were sacrificed to collect the liver and blood samples by heart puncture. Serum and liver lipids were determined on all rats and compared the histochemical lipid staining method with the biochemical analysis of serum and liver lipids. A high fat diet caused increased level of the total lipids, total cholesterol and free cholesterol contents in the liver and the serum. Rats fed pectin reduced body weight, werum lipid and liver lipid but cellulose had no effect to reduce serum and liver lipid concentration. These results indicate that dietary fat level led to changes in the lipid metabolism of rats and that pectin was more effective in lowering serum and liver lipid than cellulose.

• 대한간학회지
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• 제24권4호
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• pp.370-371
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• 2018

• 한국콘텐츠학회논문지
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• 제15권8호
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• pp.389-396
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• 2015

간 섬유화는 임상에서 흔히 접하는 질환으로, 간세포 염증 및 괴사가 수년간 지속 및 반복되는 질환으로 간경변이 진행된다. 따라서, 만성 간질환 환자에서 간경변 및 간세포암으로의 진행을 막음으로써 간경변의 합병증 및 간세포암에 의한 사망률 및 유병률을 감소시키는 것이 주요한 임상 과제라 할 수 있다. 이에 본 연구에서는 미만성 간질환 환자에게서 초음파 영상, 혈액검사, 간탄력도와의 상관관계를 수치화 하고자 하였다. 본 연구에서는 P사의 초음파 진단기 (IU-22)로 영상을 획득한 환자와 Fibrosccan을 시행 받은 141명을 대상으로 시행하였고, 혈액 검사는 초음파 영상과 간섬유 스캔을 시행한 시점의 검사 결과로 기초자료를 획득하였다. 각 자료에 대한 통계 분석은 집단 간 차이 검증을 위해 일원분산분석(One-way, ANOVA)을 시행하여 검증하였다. 탄성 초음파의 수치는 정상, 만성간질환, 간경변 순으로 증가하였다. 판독 결과에 따라 ALT, Albumin은 대상군 간 통계학적 차이를 보이지 않았으며, 나이, AST, ALP, Bilirubin, PLT, PT, kPa에서 초음파 판독 결과에 따라서 차이가 있고, 통계적으로 유의(p<0.05)하였다. 그리고 다른 연구에서 만성 간질환 탄성 초음파 수치값이 12.5kPa 이상이라고만 제시하였으나, 본 연구에서는 질환별 평균 kPa임계값을 제시하여, 정량적으로 진단이 가능하게 수치화를 하였다. 또한, 진단결과의 상관관계를 제시하여 질환별 만성 간질환 환자의 진단에 일차적인 도구로 사용될 수 있으리라 사료된다.

• Pediatric Gastroenterology, Hepatology & Nutrition
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• 제16권4호
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• pp.207-218
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• 2013

Long term outcomes after liver transplantation are major determinants of quality of life and of the value of this heroic treatment. As short term outcomes are excellent, our community is turning to take a harder look at long term outcomes. The purpose of this paper is to review these outcomes, and highlight proposed treatments, as well as pressing topics needing to be studied. A systemic review of the English literature was carried in PubMed, covering all papers addressing long term outcomes in pediatric liver transplant from 2000-2013. Late outcomes after pediatric liver transplant affect the liver graft in the form of chronic liver dysfunction. The causes include rejection particularly humoral rejection, but also de novo autoimmune hepatitis, and recurrent disease. The metabolic syndrome is a major factor in long term cardiovascular complication risk. Secondary infections, kidney dysfunction and malignancy remain a reality of those patients. There is growing evidence of late cognitive and executive function delays affecting daily life productivity as well as likely adherence. Finally, despite a good health status, quality of life measures are comparable to those of children with chronic diseases. Long term outcomes are the new frontier in pediatric liver transplantation. Much is needed to improve graft survival, but also to avoid systemic morbidities from long term immunosuppression. Quality of life is a new inclusive measure that will require interventions and innovative approaches respectful not only on the patients but also of their social circle.

• Asian-Australasian Journal of Animal Sciences
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• 제10권4호
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• pp.402-407
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• 1997

This study was conducted to investigate the effects of effects of enprostil, a prostaglandin $E_2$, analogue, on liver triacylglycerol content and factors that regulate liver lipid metabolism in mice. Mice received vehicle or $10{\mu}g$ enprostil/kg body weight intraperitoneally every 6 h, and were killed at 0, 6, 12, 18 and 24 h after the first injection. Enprostil significantly lowered liver triacylglycerol content after 12 h of the first injection. However, the peroxisomal ${\beta}$-oxidation activity was inconsistent with the result of liver triacylglycerol content, because its activity was lovered by enprosil. In another experiment, the effect of enprostil on lipid metabolism in mice was investigated in a short period. Mice received $10{\mu}g$ enprostil/kg body weight intraperitoneally, and were killed after 0, 5, 10, 30 and 60 min. After 30 min, malic enzyme activity was significantly increased by the administration of enprostil compared with the activity at 5 min after. No significant changes in liver carnitine palmitoyltransferase and peroxisomal ${\beta}$-oxidation activities were observed. Plasma free fatty acid concentrations were markedly reduced from 5 through 60 min after the administration of enprostil. Consequently, enprostil suppressive effect on liver triacylglycerol concentration might result from the decreased entry of free fatty acid into liver.

• 대한한방체열의학회지
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• 제1권1호
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• pp.20-26
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• 2002

The flowing of Liver Qi upwards and outwards in all directions means importance especially for women because they are based on blood which is derived from Liver by the theory of oriental medicine. The function of Liver Qi is considered to be reflected at Rt. upper abdomen by meridian theory of oriental medicine. The body temperature was assesed ay DITI. Thermographic measurements were performed on 2 areas. All data were coded for computer analysis and significance were tested by unpaired T test. DITI revealed the significant hyperthermia of Rt. upper abdomen on the Liver Qi stagnation patients. These results suggest that the difference between upper and lower abdomen temperature is remarkably related to occurrence of Liver Qi stagnation. DITI may be favorable to the diagnosis and assessment of Liver Qi stagnation.

• BMB Reports
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• 제38권5호
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• pp.563-570
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• 2005

Tamoxifen citrate (TAM), is widely used for treatment of breast cancer. It showed a degree of hepatic carcinogenesis. The purpose of this study was to elucidate the antioxidant capacity of green tea (Camellia sinensis) extract (GTE) against TAM-induced liver injury. A model of liver injury in female rats was done by intraperitoneal injection of TAM in a dose of $45\;mg\;Kg^{-1}\;day^{-1}$, i.p. for 7 successive days. GTE in the concentration of 1.5%, was orally administered 4 days prior and 14 days after TAM-intoxication as a sole source of drinking water. The antioxidant flavonoid; epicatechin (a component of green tea) was not detectable in liver and blood of rats in either normal control or TAM-intoxicated group, however, TAM intoxication resulted in a significant decrease of its level in liver homogenate of tamoxifen-intoxicated rats. The model of TAM-intoxication elicited significant declines in the antioxidant enzymes (glutathione-S-transferase,glutathione peroxidase, superoxide dismutase and catalase) and reduced glutathione concomitant with significant elevations transaminase) levels. The oral administration of 1.5% GTE to TAM-intoxicated rats, produced significant increments in the antioxidant enzymes and reduced glutathione concomitant with significant decrements in TBARS and liver transaminases levels. The data obtained from this study speculated that 1.5% GTE has the capacity to scavenge free radical and can protect against oxidative stress induced by TAM intoxication. Supplementation of GTE could be useful in alleviating tamoxifen-induced liver injury in rats.