• Title/Summary/Keyword: ST2 protein

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Association between extract from fruit of Opuntia ficus-indica and streptozotocin-induced diabetic rats

  • Jo, Hyunmu;Kim, Hyun Seok;Kim, Dae Joong;Sim, Sung Bo
    • Korean Journal of Veterinary Research
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    • v.61 no.1
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    • pp.6.1-6.6
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    • 2021
  • Opuntia ficus-indica has traditionally been used in prevention and treatment of various diseases such as diabetes mellitus. The current study was performed to determine whether Opuntia ficus-indica is associated with diabetes. Diabetic rat models were induced with streptozotocin (STZ). This study divided rats into 1 day (short-term) and 4 consecutive weeks (long-terms) of daily administration. These groups were subdivided into four groups each other for assessment of blood glucose level as follows: Group 1, untreated rats given distilled water; Group 2, untreated rats given Opuntia ficus-indica; Group 3, STZ-induced diabetic rats given distilled water; Group 4, STZ-induced diabetic rats given Opuntia ficus-indica. Blood glucose level was measured for one day and four weeks. In addition, serum markers of alanine aminotransferase (ALT), aspartate transaminase (AST), cholesterol, and creatinine were determined, and total protein triglycerides were measured at four weeks. Blood glucose level was highest in both groups (Group 3 and Group 4) at 30 minutes and two weeks and gradually decreased in a time-dependent manner. The difference in blood glucose among the four groups was significant (p < 0.05). Additionally, the levels of ALT, AST and triglycerides were significantly decreased by Opuntia ficus-indica.

Effects of Macrolide and Corticosteroid in Neutrophilic Asthma Mouse Model

  • An, Tai Joon;Rhee, Chin Kook;Kim, Ji Hye;Lee, Young Rong;Chon, Jin Young;Park, Chan Kwon;Yoon, Hyoung Kyu
    • Tuberculosis and Respiratory Diseases
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    • v.81 no.1
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    • pp.80-87
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    • 2018
  • Background: Asthma is a disease of chronic airway inflammation with heterogeneous features. Neutrophilic asthma is corticosteroid-insensitive asthma related to absence or suppression of $T_H2$ process and increased $T_H1$ and/or $T_H17$ process. Macrolides are immunomodulatory drug that reduce airway inflammation, but their role in asthma is not fully known. The purpose of this study was to evaluate the role of macrolides in neutrophilic asthma and compare their effects with those of corticosteroids. Methods: C57BL/6 female mice were sensitized with ovalbumin (OVA) and lipopolysaccharides (LPS). Clarithromycin (CAM) and/or dexamethasone (DXM) were administered at days 14, 15, 21, 22, and 23. At day 24, the mice were sacrificed. Results: Airway resistance in the OVA+LPS exposed mice was elevated but was more attenuated after treatment with CAM+DXM compared with the monotherapy group (p<0.05 and p<0.01). In bronchoalveolar lavage fluid study, total cells and neutrophil counts in OVA+LPS mice were elevated but decreased after CAM+DXM treatment. In hematoxylin and eosin stain, the CAM+DXM-treated group showed less inflammation additively than the monotherapy group. There was less total protein, interleukin 17 (IL-17), interferon ${\gamma}$, and tumor necrosis factor ${\alpha}$ in the CAM+DXM group than in the monotherapy group (p<0.001, p<0.05, and p<0.001). More histone deacetylase 2 (HDAC2) activity was recovered in the DXM and CAM+DXM challenged groups than in the control group (p<0.05). Conclusion: Decreased IL-17 and recovered relative HDAC2 activity correlated with airway resistance and inflammation in a neutrophilic asthma mouse model. This result suggests macrolides as a potential corticosteroid-sparing agent in neutrophilic asthma.

Gene Constitution of Egg White Proteins of Native Chicken in Asian Countries

  • Kinoshita, K.;Okamoto, S.;Shimogiri, T.;Kawabe, K.;Nishida, T.;Kakizawa, R.;Yamamoto, Y.;Maeda, Y.
    • Asian-Australasian Journal of Animal Sciences
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    • v.15 no.2
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    • pp.157-165
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    • 2002
  • Genetic variations of seven egg white protein loci in 1,112 samples from eight Asian countries (Yunnan province of China, Mongolia, Nepal, Vietnam, Laos, Thailand, Myanmar, Indonesia) and 360 samples from two improved breeds (Isa Brown, Boris Brown) were investigated by using starch gel and polyacrylamide gel electrophoresis. Five egg white protein loci (Ov, $G_3$, $G_2$, $G_1$ and $Tf_{EW}$) were found to be polymorphic in Asian native chicken populations. The proportion of polymorphic loci ($P_{poly}$) and average heterozygosity ($\bar{H}$) of Asian native populations varied from 0.143 to 0.714 and 0.014 to 0.225, respectively, and were higher than those of improved breeds. The subdivision index ($G_{ST}$) value among 18 native chicken populations in Asia is lower (0.0827) than among improved chicken populations (0.1693). This value means that the degree of subdivision among Asian native populations is lower than among improved breeds and gene constitutions among populations in Asia are similar.

Purification and Characterization of Alkaline Invertase from the Hypocotyls of Mung Bean (Phaseolus raiatus L.) (녹두의 하배축에서 분양한 Alkaline lnvertase의 정제와 특성)

  • Young-Sang Kim
    • Journal of Plant Biology
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    • v.38 no.4
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    • pp.349-357
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    • 1995
  • The alkaline invertase ($\beta$-D-fructofuranoside fructohydrolase, EC 3.2.1.26) was isolated and characterized from the hypocotyls of mung bean (Phaseolus radiatus L.). The enzyme was purified by consecutive step using diethylaminoethyl (DEAE)-cellulose anion exchange, 1st Sephadex G-200, DEAE-Sephadex A50 and 2nd Sephadex G-200 chromatography. The overall purification was about 77-fold with a yield of about 6%. The finally purified enzyme exhibited a specific activity of about 48 $\mu$mol of glucose produced mg-1 protein min-1 at pH 7.0 and appeared to be a single protein by nondenaturing polyacrylamide gel electrophoresis (PAGE). The enzyme had the native molecular weight of 450 kD and subunits molecular weight of 63 kD and 38 kD as estimated by Sephadex G-200 chromatography and SDS-PAGE, respectively, suggesting that the enzyme is a heteromultimeric protein composed of two types of subunits. On the other hand, the enzyme appeared to be not a glycoprotein according to the results of Con A chromatography and glycoprotein staining. The enzyme had a Km for sucrose of 19.7 mM at pH 7.0 and maximum activity around pH 7.5. The enzyme was most active with sucrose as substrate, compared to raffinose, cellobiose, maltose and lactose. These results indicate the alkaline invertase is a $\beta$-fructofuranosidase.

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A Study on the Preparation Method and on the Improvement of Damdusi (담두시의 제조방법 확립 및 제조방법 개선에 관한 연구)

  • 이영근
    • Journal of the East Asian Society of Dietary Life
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    • v.13 no.4
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    • pp.313-317
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    • 2003
  • Damdusi was a kind of fermented soybean food added with ginger and sancho(Zanthoxylum schinifolium). To improve the preparing method of Damdusi, Asperillus oryzae was inoculated at steamed soybean and fermented at 25~3$0^{\circ}C$ incubator far 48 hours. Salt, ginger and sancho was mixed into it after 1st fermentation, and the 2nd fermentation was also done at 30~37$^{\circ}C$ for 1 week. After drying under the sun, sancho was removed from it. Dried Damdusi was composed of 4.90% of moisture, 35.07% of crude ash, 13.61% of crude fat and 23.44% of crude protein, respectively. Its flavor earned the high score(3.94) but taste did not (2.98) due to the salty taste by the sensory evaluation. Therefore, salt ratio was reduced to 18%, 16%, and 14% for improving the taste. The one with 14% salt concentration had the highest crude ash and crude fat but the lowest crude protein composition. The crude protein was the highest in the group of 16% salt. By the sensory evaluation, the taste and the overall acceptability was the highest in the 14% salt group.

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Alteration of Immunoreactivity for SNARE Proteins in the Rat Hippocampus after Middle Cerebral Artery Occlusion

  • Park, Jung-Sun;Huh, Pil-Woo;Jung, Yeon-Joo;Park, Su-Jin;Lee, Kyung-Eun
    • The Korean Journal of Physiology and Pharmacology
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    • v.8 no.3
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    • pp.141-146
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    • 2004
  • Soluble N-ethylmaleimide-sensitive factor attachment protein receptors (SNARE) proteins, composed of two presynaptic membrane proteins [synaptosomal-associated protein of 25 kDa (SNAP-25) and syntaxin] and a presynaptic vesicular protein [vesicle-associated membrane protein (VAMP)], serve as a core of exocytotic fusion machinery, which can be affected by ischemia. Synaptic protein in core region, striatum and cortex has been shown to alter after focal ischemia, however, little is known in hippocampus. Hippocampus is remote from ischemic core, but it is one of the most vulnerable regions. Using immunohistochemistry, the present study was undertaken to investigate the alteration of expression of SNAP-25, syntaxin, and VAMP in the hippocampus of rats which were subjected to middle cerebral artery occlusion (MCAO) for 2h and allowed to reperfuse. At 2 weeks of reperfusion, the SNAP-25 and syntaxin immunoreactivity was increased in the stratum oriens of the CA1 and the stratum lucidum of the CA3 in the ipsilateral hippocampus. However, VAMP immunoreactivity didn't show significant change. These results demonstrate that the level of the presynatpic plasma membrane proteins (SNAP-25 and syntaxin) in the rat hippocampus is more sensitively affected by focal ischemia than that of the synaptic vesicle protein (VAMP).

Effects of Custom Nutrition Education on Dietary Intakes and Clinical Parameters in Patients Diagnosed with Iron Deficiency Anemia (맞춤형 영양교육이 철결핍성 빈혈환자의 임상 지표 및 영양섭취 상태에 미치는 효과)

  • Kim, Hye-Jin;Mok, Hee-Jung;Hong, Jeong-Im;NamGung, Sin-A
    • Journal of the Korean Dietetic Association
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    • v.18 no.1
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    • pp.72-80
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    • 2012
  • This study examined the effects of custom nutrition education on dietary intakes and clinical parameters in patients diagnosed with iron deficiency anemia. A total of 34 patients visited the anemia clinic of Yeouido St. Mary's Hospital. Among these, only 16 patients were available for follow-ups. A follow-up was conducted by a clinical dietitian 2 months from the first nutrition education session. Patients were all women. For custom nutrition education, we investigated anthropometric data, dietary assessment (24 hr-recall, FFQ), and self-recognized anemic symptoms. Weight did not show a significant difference but hemoglobin, hematocrit (P<0.01), serum iron, and serum ferritin (P<0.05) were significantly increased after the nutrition education. Serum total iron binding capacity was significantly decreased (P<0.01). Self-recognized symptoms such as dizziness, fatigue (P<0.001), shortness of breath, headache (P<0.01), brittle nails, and sore tongue (P<0.05) were significantly improved. Daily intakes of protein (P<0.05), total iron (P<0.01), and animal iron (P<0.001) were significantly increased. A significantly negative correlation was observed between current serum iron and the intake of carbohydrates, fat, or phosphorus (P<0.05). But current serum ferritin showed a significantly positive correlation with the frequency of intake of meat, poultry, and fish. It could be concluded that the custom nutrition education might be effective on quality of diet as well as iron status and it might also improve the clinical parameters in patients diagnosed with the iron deficiency anemia.

Expression of neurotransmitter(CRF, CRF-R and CRF-BP) related to stress in stomach and zusanli in rats (백서의 위와 족삼리에서 스트레스 관련(CRF, CRF-R, CRF-BP) 신경전달물질의 발현에 대한 연구)

  • Lee, Chang-hyun;Kim, Yung-ho;Song, Beom-yong;Yook, Tae-han
    • Journal of Acupuncture Research
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    • v.20 no.6
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    • pp.89-102
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    • 2003
  • Objective: The expression of CRF(corticotropin releasing factor), CRF-R(receptor) and CRF-BP(binding protein) in CNS neurons projecting to the stomach and ST36 using the pseudorabies virus in the rat was investigated. Methods: After survival times of 5 days following injection of PRV-Ba-Gal, The thirty rats were perfused, and their brain were frozen sectioned($30{\mu}m$). These sections were stained by PRV-Ba-Gal histochemical staining method and(or) CRF, CRF-R and CRF-BP immunohistochemical method. The common expressed areas of the brain projecting to the stomach and zusanli(ST36) following injection of PRV-Ba-Gal were observed with light microscope. Results: 1) The dense accumulation of CRF-immunoreactive terminals is seen in the area postrema, n. tractus solitarius, external zone of the median eminence, with some immunoreactive CRF also present in the internal zone. 2) Aggregates of CRF-R immunoreactive perikarya are found in area postrema, n. tractus solitarius, lateral reticular n., gigantocellular reticular n., locus coeruleues, paraventricular n. of hypothalamus, median eminence, preoptic n., arcuate n. and hind limb area of cerebral cortex. 3) Aggregates of CRF-BP immunoreactive perikarya are found in area postrema, n. tractus solitarius, lateral reticular nucleus, gigantocellular reticular n., locus coeruleues, paraventricular n. of hypothalamus, median eminence and arcuate n.. Conclusions : These results suggest that PRV-Ba-Gal labeled areas projecting to stomach and ST36 may be related to the central autonomic pathways. A part of CNS neurons projecting to the stomach and ST36 were related to expression of CRF, CRF-R and CRF-BP related to the stress in central autonomic center.

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Effects of Zingiberis Rhizoma Pharmacopuncture Injected at GB30 and ST36 on Neuropathic Pain in Rats (환도(GB30) 및 족삼리(ST36) 건강약침이 신경병증성 통증 유발 흰쥐에 미치는 영향)

  • Hwang, Min Sub
    • Korean Journal of Acupuncture
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    • v.36 no.1
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    • pp.52-62
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    • 2019
  • Objectives : The objective of this study was to investigate the effects of Zingiberis Rhizoma Pharmacopuncture(ZP) at GB30 and ST36 in neuropathic pain induced SD rats by the block of Transient Receptor Potential Vanilloid 1(TRPV1). Methods : Neuropathic pain in rats was induced by tibial and common peroneal nerve transection of right leg. The rat subjects were divided into 6 groups : normal(Nor, n=5), control(Con, n=5), neuropathic pain plus 2 mg/kg ZP injection at GB30 and ST36(ZP-A, n=5), 10 mg/kg ZP(ZP-B, n=5), 20 mg/kg ZP(ZP-C, n=5) and 0.45 mg/kg Tramadol(Tra, n=5). Three days after the surgery, injections were administered once a day for 17 days. Withdrawal response of neuropathic rats' legs were measured by stimulating the paw of Right leg with von frey filament, acetone and radient heat on day 3, 7, 11, 15, 19 after surgery. After all treatments were completed, c-Fos in the midbrain central gray and TRPV1 & TRPA1 of DRG(L5) were analyzed. Results : Groups ZP-B and ZP-C showed a meaningful decrease in the withdrawal response of mechanical allodynia, thermal hyperalgesia and cold allodynia compared to the control group(p<0.05, p<0.01, p<0.001). Groups ZP-B and ZP-C showed a meaningful decrease in the expression of c-fos and TRPV1 protein level compared to the control group(p<0.05, p<0.01, p<0.001). Conclusions : These results suggest that Zingiberis Rhizoma Pharmacopuncture at GB30 and ST36 could decrease mechanical & cold allodynia and thermal hyperalgesia by block the TRPV1 on the model of neuropathic pain.

Clinical Pathologic Study on DL-Ethionine Induced Fatty Liver in Korean Black Goats (한국흑염소에 있어서 DL-Ethionine으로 유발시킨 지방간에 관한 연구)

  • Lee Kyoung-Kap;Choi Hee-In
    • Journal of Veterinary Clinics
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    • v.8 no.2
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    • pp.127-142
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    • 1991
  • This study was carried out to investigate fatty liver in Korean black goats. Adult female goats were divided into 3 test groups(A, B and C). Group A and B of goats each received 3 test consecutive daily doses of DL-ethionine at 75mg/kg and 150mg/kg body weight, respectively. Group C of goats was given 3 consecutive doses of the compound every 48 hours at 150mg/kg body weight. The clinical symptoms, hematological values, serum chemical values and histopathological study of the liver were investigated in the test animals. The results obtained are as follows ; 1. Fatty liver were observed in every test animal. 2. Some clinical symptoms( anorexia, depression) were appeared from 1st day to 7th day after administration of the compound in every test animal. In addition to these symptoms, diarrhea and salivation were generally observed in test animals which were given the compound at 150mg/kg body weight. The degree of these symptoms was dose dependent. 3. There was no significant variations in total WBC counts and fibrinogen values in the blood of test goats. The PCV values were significantly increased on 5th day of dosing in group A and B of goats. 4. The total lipid value was not changed but the concentration of NEFA was significantly increased on 3rd day of dosing with the compound and returned to normal value after 10 days hereafter. The value of triglycerides was significantly increased on 1st day and returned to normal value on 3rd day of dosing. The value of cholesterol was significantly decreased on 3rd day and returned to normal value on 10th day after treatment. 5. Total protein level was decreased on 10th day of dosing in the groups of B and C, and billirubin level was significantly increased on 7th day of dosing in every test group and returned to normal level after 13th day of administration. 6. The activity of GGT in serum was not changed while the activities of SDH and AST were significantly increased in every test goat and those values were returned to normal after 10~13th day of trestment. 7 The 35K-protein fraction in serum was not detected by SDS-polyacrylamide gel electrophoresis, but this protein fraction was detected by the same method after treating the 21st and 22nd fraction which were obtained by column chromatography with Sephadex G-100. 8. The affected liver was congested and swollen on 3rd day, and yellowish brown in color and mottled appearance on 7th day of treatment. Histopathologically, fat droplets were common in the hepatocytes, this change was intensive on 7th day after treatment in group B and C. Hepatic cell necrosis was observed in some livers but this pathological change was disappeared and returned to normal after 13 days of treatment.

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