• Title/Summary/Keyword: Liver-specific function

Search Result 94, Processing Time 0.025 seconds

The Expression Characterization of Chicken Uncoupling Protein Gene

  • Zhao, Jian-Guo;Li, Hui;Wang, Yu-Xiang;Meng, He
    • Asian-Australasian Journal of Animal Sciences
    • /
    • v.18 no.11
    • /
    • pp.1552-1556
    • /
    • 2005
  • The UCPs are members of the mitochondrial inner membrane transporter family, present in the mitochondrial inner membrane. Their main function is increasing the energy expenditure via diminishing the resulting production of ATP from mitochondrial oxidative phosphorylation instead of yielding dissipative heat. They are associated with the metabolism of fat and regulation of energy expenditure. The UCP gene can be viewed as the candidate gene for chicken fatness. In the present study, RT-PCR and Northern Blot methods were developed to investigate the expression of the UCP gene in ten tissues including heart, liver, spleen, lung, kidney, gizzard, intestine, brain, breast muscle and abdominal fat of chicken. The results of both RT-PCR and Northern Blot methods showed that the UCP gene expressed specific in breast muscle. The expression levels of UCP gene in breast muscles from egg-type and meat-type chickens of hatching, 2, 4, 6 and 8 wk of age were detected by RT-PCR assay and results showed that the expression levels of UCP gene were related to breeds. Expression level of UCP gene in layers was higher than that in broilers at various weeks of age except at 6 wk. The UCP gene's expression was higher at 6 wk and had no significant difference among other weeks of age in broilers; in layers the expression level of UCP gene had no significant difference among weeks of age. The experiment results also showed that insulin could increase the expression level of UCP gene by 40% compared with control group.

BLEEDING CONTROL BY THE CIRCUMFERENTIAL SUTURE & DRAINAGE ON ACTIVE BLEEDING INCISION & DRAINAGE SITE OF TEMPORAL SPACE ABSCESS DUE TO ADVANCED ODONTOGENIC INFECTION IN A MULTIPLE MEDICALLY COMPROMISED DISABLED PATIENT : REPORT OF A CASE (다발성 전신질환 장애환자에서 진행성 치성감염에 의한 측두간극농양 절개 배농시 창상주위 봉합과 배농술에 의한 과도한 출혈조절 : 증례보고)

  • Son, Jeong-Seog;Oh, Ji-Hyeon;Yoo, Jae-Ha
    • The Journal of Korea Assosiation for Disability and Oral Health
    • /
    • v.9 no.1
    • /
    • pp.30-35
    • /
    • 2013
  • The four principles of treatment of odontogenic infection are as follows : (1) removal of the cause, (2) establishment of drainage, (3) institution of antibiotic therapy, and (4) provision of supportive care, including proper rest and nutrition. A separate incision is required to establish drainage, especially in the case of extensive fascial space infections. There are four principle causes for active bleeding in the immediate incision & drainage phase; (1) vascular wall alteration (infection, scurvy, chemicals), (2) disorder of platelet function, (3) thrombocytopenic purpuras, (4) disorders of coagulation (liver disease, anticoagulation drug). If the hemorrhage from incision & drainage site is aggressive, the site must be packed with proper wet gauze and wound closure & drainage dressing are applied. The specific causes of bleeding may be associated with hypoxia, changes in the pH of blood & chemical changes affecting vascular contractility and blood clotting. This is a case report of bleeding control by the circumferential suture & drainage on active bleeding incision & drainage site of temporal space abscess due to advanced odontogenic infection in a multiple medically compromised disabled patient.

Review of Studies on Taeumin Yeoldahanso-tang since 2000 (열다한소탕(熱多寒少湯) 관련 기존 연구 분석)

  • Oh, Hye-Won;Shin, Seung-Won;Jang, Hyeung-Jin;Ahn, Kwang-Seok;Lee, Seok-Geun;Lee, Eui-Ju;Koh, Byung-Hee;Lee, Jun-Hee
    • Journal of Sasang Constitutional Medicine
    • /
    • v.26 no.1
    • /
    • pp.98-109
    • /
    • 2014
  • Objectives This paper was aimed to review experimantal and clinical articles on Yeoldahanso-tang(YDHS), figuring out the recent tendency and suggesting the future prospects of YDHS-related studies. Methods The articles published in Korean or English since 2000 were searched, screened, and classified into experimental or clinical studies. And we structured designs, methods and results of the included studies into each table for the experimental studies or the clinical studies. Especially tools to diagnose constitutions and patterns identified in clinical researches were also summarized in the tables. Results 28 articles are finally included. 14 experimental studies are mostly in vitro designs to show efficacy of YDHS. There are only 2 studies for the safety. Among 14 clinical studies, 12 case studies target disorders of central nervous system, viral infection, skin ulcer and so on. 2 studies are before and after studies on cerebral infarction and effects on liver function. Conclusions Based on the efficacy of YDHS on central nervous system, it acquires higher level of evidence such as randomized controlled trials in the future. In addition other diseases such as skin ulcer and so on, it needs to be done more specific experimental or clinical studies so that we can get statistically significant results.

Nuclear Receptor PPARα Agonist Wy-14,643 Ameliorates Hepatic Cell Death in Hepatic IKKβ-Deficient Mice

  • Kim, Taehyeong;Wahyudi, Lilik Duwi;Gonzalez, Frank J.;Kim, Jung-Hwan
    • Biomolecules & Therapeutics
    • /
    • v.25 no.5
    • /
    • pp.504-510
    • /
    • 2017
  • Inhibitor of nuclear factor kappa-B kinase beta ($IKK{\beta}$) plays a critical role in cell proliferation and inflammation in various cells by activating $NF-{\kappa}B$ signaling. However, the interrelationship between peroxisome proliferator-activated receptor ${\alpha}$ ($PPAR{\alpha}$) and $IKK{\beta}$ in cell proliferation is not clear. In this study, we investigated the possible role of $PPAR{\alpha}$ in the hepatic cell death in the absence of $IKK{\beta}$ gene using liver-specific Ikkb-null ($Ikkb^{F/F-AlbCre}$) mice. To examine the function of $PPAR{\alpha}$ activation in hepatic cell death, wild-type ($Ikkb^{F/F}$) and $Ikkb^{F/F-AlbCre}$ mice were treated with $PPAR{\alpha}$ agonist Wy-14,643 (0.1% w/w chow diet) for two weeks. As a result of Wy-14,643 treatment, apoptotic markers including caspase-3 cleavage, poly (ADP-ribose) polymerase (PARP) cleavage and TUNEL-positive staining were significantly decreased in the $Ikkb^{F/F-AlbCre}$ mice. Surprisingly, Wy-14,643 increased the phosphorylation of p65 and STAT3 in both Ikkb and $Ikkb^{F/F-AlbCre}$ mice. Furthermore, BrdU-positive cells were significantly increased in both groups after treatment with Wy-14,643. Our results suggested that $IKK{\beta}-derived$ hepatic apoptosis could be altered by $PPAR{\alpha}$ activation in conjunction with activation of $NF-{\kappa}B$ and STAT3 signaling.

Cloning and Expression of the Duck Leptin Gene and the Effect of Leptin on Food Intake and Fatty Deposition in Mice

  • Dai, Han Chuan;Long, Liang Qi;Zhang, Xiao Wei;Zhang, Wei Min;Wu, Xiao Xiong
    • Asian-Australasian Journal of Animal Sciences
    • /
    • v.20 no.6
    • /
    • pp.850-855
    • /
    • 2007
  • Leptin is the adipocyte-specific product of the obese gene and plays a major role in food intake and energy metabolism. Leptin research was mainly focused on mammalian species, but understanding of leptin and its function in poultry is very poor. In this study, the duck leptin gene was amplified using the reverse transcription-polymerase chain reaction (RT-PCR) from duck liver RNA. The cDNA fragment was inserted into the pET-28a expression vector, and the resulting plasmid was expressed in Escherichia coli BL21 (DE3). Experimental mice were given an intraperitoneal injection of 10 mg/kg leptin dissolved in phosphate buffered saline (PBS), while the control mice were injected with PBS. The effect of leptin on food intake, body weight and fatty deposition in mice was detected. Sequence analysis revealed that duck leptin had a length of 438 nucleotides which encoded a peptide with 146 amino acid residues. The sequence shares highly homology to other animals. The coding sequence of duck leptin was 84 and 86% identical to human and pig leptin nucleotides sequence. Highest identity was with the rat coding sequence (95%). The identity of the amino acid sequence was 84, 82 and 96% respectively compared to that of the human, pig and rat. Results of SDS-PAGE analysis indicated that a fusion protein was specifically expressed in E. coli BL21 (DE3). The purified product was found to be biologically active during tests. Continuous administration of recombinant duck leptin inhibited food intake. Despite the decrease of food intake, leptin significantly induced body weight and fatty deposition. These changes were accompanied by a significant down-secretion of plasma glucose, cholesterol, triglyceride and insulin levels in mice. The observations provide evidence for an inhibitory effect of leptin in the regulation of food intake and for a potential role of duck leptin in the regulation of lipogenesis.

The Effects of Sochungyong-tang plus Okbyeong-san Extract on Allergic Rhinitis of Rats (소청룡탕합옥병풍산(小靑龍湯合玉屛風散)이 백서(白鼠)의 알레르기 비염(鼻炎)에 미치는 효과)

  • Kim, Bum-Rak;Kim, Kyung-Jun
    • The Journal of Korean Medicine Ophthalmology and Otolaryngology and Dermatology
    • /
    • v.19 no.2
    • /
    • pp.50-58
    • /
    • 2006
  • Background and Objectives : Although the incidence of allergic rhinitis has increased specific therapeutics with a certain medicine is not well developed yet. In therapeutics of allergic rhinitis, limited medicines just have been used in the clinin. Sochungyong-tang has been a widespread medicine for allergic rhinitis. However, okbyeongpung-san has been taken for raising immunity. In medical treatment of allergic rhinitis, raising immunity is a necessary part of the process. In this reason, this study aimed to find out therapeutic effects of combination of sochungyoung-tang and okbyeongpung-san extract on allergic rhinintis of nasal tissue in rats. Materials and Methods : The Sprague-Dawley male rats, about 200g of body weight, were divided into three groups: the normal group, the control groups, and the sample groups. With the Levine and Vaz method, the allergic reaction was induced with ovalbumin as antigen in the intraperitoneal route. Rats of the sample groups were treated with 2cc of sochungyoung-tang plus okbyeongpung-san extract once a day for 28days. I observed historical changes in nasal tissue. I also found changes in the segment of lympocyte and neutrophil of Leukocyte and erythrocyte. I used the statistical methods of post Hoc test(p<0.05) Results : The increase of the goblet cell and mucous secretion in the sample groups was rare when compared to the control groups. Effects of sochungyoung-tang plus okbyeongpung-san extract on the liver function were also studied in rats. Treatment of sochungyoung-tang plus okbyeongpung-san extract did not affect GOT and GPT. The number of lymphocyte was decreased, while the number of erythrocyte was increased in sample groups. Conclusion : This study shows that sochungyoung-tang plus okbyeongpung-san plus okbyeongpung-san extract has considerable effects on allergic rhinitis.

  • PDF

Time-course Responses of Hepatic Xenobiotic Metabolizing Enzymes and Stress in Olive Flounder (Paralichthys olivaceus) Exposed to Formalin (Formalin에 약욕시킨 넙치(Paralichthys olivaceus)의 스트레스 반응과 간장 약물대사효소의 경시적 반응)

  • Lee Ji-Seon;Kim Pyong-Kih;Lee Kyoung-Seon;Jeon Joong-Kyun
    • Journal of Aquaculture
    • /
    • v.19 no.2
    • /
    • pp.90-94
    • /
    • 2006
  • The effects of formalin on mixed function oxygenase (MFO) system and stress-response were investigated in olive flounder (Paralichthys olivaceus). Olive flounder was exposed to formalin at the concentration of 300 ppm for 1, 2, 4 and 16 h. Levels of stress-response enzymes together with total protein, glucose and osmolality were quantitatively determined in blood, and the activities of phase I (cytochrome P450, ethoxyresorufin deethylase) and phase II (glutathione S-transferase) hepatic enzymes were also determined. Since the formalin-exposure for 16 h resulted no significant changes in aspartate aminotransferase and alanine aminotransferase, specific enzymes for liver damage, it was thought that it did not cause hepatic tissue damage at the concentration of 300 ppm. However, hepatic MFO system was induced at 1 to 4 h, and stress response was induced after 16 h of exposure. Moreover, it is considered that the depression of MFO activity after 16 h of exposure may not be adaptation to formalin, but toxic response. These results suggest that low concentration of formalin does not cause hepatic tissue damage of fish, but could induce MFO and stress response.

Association between Genetic Polymorphisms of the CYP2C19, CYP2D6 and Types of Sasang Constitutional Medicine (약물대사효소 CYP2C19, CYP2D6의 다형성과 사상체질의 관련성 연구)

  • Lee, Sang-Gyu;Kim, Hyun-Ju;Park, Hye-Jung;Lee, Jung-Ho;Kwon, Deog-Yun;Joo, Jong-Cheon;Choi, Sun-Mi;Lee, Hye-Suk;Kim, Yun-Kyung
    • The Journal of Korean Medicine
    • /
    • v.28 no.1 s.69
    • /
    • pp.51-62
    • /
    • 2007
  • Objectives . The types of Sasang constitutional medicine (SCM) have definite effect on response to herbal drugs. The majority of human P45O dependent xenobiotic metabolism is carried out by polymorphic enzymes which can cause abolished, altered or enhanced metabolism. Therefore, we evaluated the relation of major CYP2C19, 2D6 polymorphism with Sasang types. Methods : 214 healthy subjects were recruited with informed consent; 172 among them had Sasang diagnosis by QSCC2. CYP2D6, 2C19 polymorphism were determined by PCR-RFLP method. Results : None of the Sasang types showed significant difference in CYP2D6, 2C19 polymorphism. However, the Tae-um type showed relatively low frequency of CYP2D6 $^{*}$10/$^{*}$10 polymorphisms with low activity (p=0.110). In the So-yang type, specific $^{*}$3/$^{*}$3 genotype which is a poor metabolizer of CYP2C19$^{*}$3 was detected (p=0.078).Conclusion . These results suggest that the Tae-um type which is said to have high liver function in SCM has the tendency of high drug-metabolizing enzyme activity. With further study, the CYP polymorphism could serve as a scientific tool for SCM diagnosis.

  • PDF

A Case of Ceftriaxone Associated Biliary Sludge (Ceftriaxone과 연관된 소아의 담도 오니(biliary sludge) 1례)

  • Yoon, Jae Kyun;Lee, Hyun Hee;Shin, Young Kyoo;Choung, Ji Tae;Tockgo, Young Chang
    • Pediatric Infection and Vaccine
    • /
    • v.4 no.2
    • /
    • pp.308-313
    • /
    • 1997
  • Ceftriaxone, an effective third generation cephalosporin with a wide range of antimicrobial activity, has become widely used by pediatricians for a variety of bacterial infections including meningitis. It has been associated with the development of sludge or stone in the gallbladder of some patients treated with this drug. Ceftriaxone associated biliary sludge has unusual acoustic characteristics and resembles gallstone. The sludge can cause symptoms such as cramping abdominal pain, and disappears after stopping ceftriaxone administration. Because of these seemingly confusing observations, it is important for the clinicians to recognize these findings that ceftriaxone treatment can cause. We report a case of ceftriaxone associated biliary sludge in Korean children. A 6-year-old girl who was treated for meningitis with ceftriaxone (100mg/kg/day) developed cramping upper abdominal pain from 5th hospital day. Physical examination, liver function tests and X-ray revealed no specific abnormal findings. But abdominal ultrasound revealed high amplitude echogenic sludge with prominent post-acoustic shadow in gallbladder and its diameter was 1.5cm. We stopped ceftriaxone administration and tried conservative care. Abdominal cramping pain subsided after 3 days of ceftriaxone removal. Second abdominal ultrasound confirmed the disappearance of sludge at 3 weeks later.

  • PDF

Tissue Distribution and Toxicokinetics of 4-Tert-Octylphenol in Rats (4-Tert-Octylphenol의 랫드에서의 조직분포 및 독성동태에 관한 연구)

  • Kang Mi Kyung;Ahn Mee Ryung;Chung Hye Joo;Choi Sun Ok;Choi Hong Serk;Yang Ji Sun;Lee Yong Bok;Yoo Tae Moo;Sohn Soo Jung
    • Toxicological Research
    • /
    • v.20 no.3
    • /
    • pp.195-203
    • /
    • 2004
  • 4-Tert-Octylphenol (OP) is a surfactant additive widely used in the manufacture of a variety of detergents and plastic products. OP can disrupt endocrine function in humans and animals. This study was carried out to obtain toxicokinetic parameters of OP in male Sprague-Dawley (SD) rats. Male rats were administered with OP by single oral application of 200 mg/kg body weight. Blood, urine and tissues samples were taken at several time intervals after administration. Analysis of samples for OP was performed by column-switching high performance liquid chromatography (HPLC). In addition, we exam-ined tissue distribution and accumulation of OP after single oral application of 50, 100, and 200 mg/kg, single intravenous injection of 1, 5 and 10 mg/kg or daily application of 50 mg/kg for 14 consecutive days. After single oral administration of 200 mg/kg, Cmax of 213 $\pm$ 123 ng/ml was reached within the first 1.3 hr (Tmax) in the plasma. AUC was calculated for 1,333$\pm$484 ngㆍhr/ml. The final elimination half-life of plasma was longer than that of urine, but urinary clearance was lower than oral. A very small fraction of OP (Fe < 0.0017%) was excreted in urine within 24 hr. These results indicated that the major excretion route of OP was not urine. The mean maximal tissue distribution of OP was obserbed at 6 hr after treatment and slowly decreased time-dependently. High OP concentrations were detected in fat at 24 hr. The OP in fat was slowly released with longer elimination half-life and lower clearance than that of other tissues. OP was not accumulated in the liver following single oral application but 14-day oral treatments resulted in two-fold accumulation. It was probably due to the saturation of detoxification pathways. On the other hand, the mRNA expression of cytochrome P450 isoforms except CYP2C11 was not affected by OP at any dose. The expression of CYP2C11 mRNA decreased in a dose-dependent manner. This result suggests that OP changes expression of the male-specific cytochrome P450 isoforms in rat liver, and these changes are closely related to the toxic and estrogenic effect of OP.