• Title/Summary/Keyword: sheep erythrocytes

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Garlic-induced Hematologic Effects in Small dogs (소형견에서 마늘투여가 혈액상에 미치는 영향)

  • 장우석;김홍태;진태원;장혜숙;정규식;박승춘;오태호;송재찬;김영홍
    • Journal of Veterinary Clinics
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    • v.18 no.4
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    • pp.341-344
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    • 2001
  • It is well-known that onion and garlic of Allium family have been cultivated for major food since ancient times. Especially garlic is known for containing protective materials against cardiovascular disease, neoplasm and cancer, and decreasing cholesterol value. Hemolytic anemia was first reported by Goldsmith in onion-fed cattle in 1909. Subsequently, similar effects have been reported in cattle, horses, sheep, dogs and cats. This toxic effect has been attributed to n-propyl disulfide which causes oxidant damage to erythrocyte cell membrane. There are few reports on overconsumption of garlic. Kim et al. reported in 1999 that 45% of Jindo dogs in korea have erythrocytes characterized by high Na-K-ATPase activity with high K and low Na concentrations (HK) which easily results in hemolytic anemia. The purpose of present report is to determine whether garlic-induced hemolytic anemia occurs in normal erythrocytes characterized by complete lack of Na-K-ATPase activity with low K and high Na concentrations (LK) dogs are fed large amounts of garlics. We found in this experiment that Erythrocyte count, PCV and Hemoglobin concentration decreased significantly, and GSH and Met-hemoglobin concentrations increased. Consequently we determined that overconsumption of garlic induces hemolytic anemia in LK dogs.

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Detection of Antigen-Specific Lymphocytes in Bacillus Calmette Guerin-Infected Mice by a Direct Rosette Assay

  • Lee, Hern-Ku;Kim, Chong-Shick;Ha, Tai-You
    • The Journal of the Korean Society for Microbiology
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    • v.22 no.2
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    • pp.163-166
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    • 1987
  • A new method for rosette assay is described for the detection of antigen-specific lymphocytes from BCG-infected mice using sheep erythrocytes coated with BCG antigen. The optimal concentration of BCG antigen for preparation of indicator cells and the incubation time of antigen coated erythrocytes-lymphocytes mixture were $50\;{\mu}g/ml$ and 1 h, respectively. The number of rosette-forming cells (RFC) during the course of BCG infection showed gradual increase as infection progressed and RFC was reached maximum (about 5-7% of splenic lymphocytes formed rosette) at 3 or 4 weeks after infection.

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IMMUNOMODULATORY ACTIVITY OF PANAX GINSENG EXTRACT (인삼추출물의 면역조절 및 항바이러스 활성 연구)

  • Singh V.K.;Agarwal S.S.;Gupta B.M.
    • Proceedings of the Ginseng society Conference
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    • 1984.09a
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    • pp.225-232
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    • 1984
  • Panax ginseng extract is capable of enhancing antibody plaque forming cell response and circulating antibody titre against sheep erythrocytes, cell mediated immunity against Semliki forest virus antigen and natural killer cell activity in mice. It also enhanced production of interferon of both the pH stable and labile types induced by an interferon inducer of fungal origin.

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Structures of hemal nodes and hemolymph nodes in sheep (면양의 혈절과 혈림프절의 구조)

  • Park, Cheol-beom;Seong, Je-kyung;Lee, In-se;Lee, Heungshik S.;Lee, Joon-sup;Yoon, Yeo-sung
    • Korean Journal of Veterinary Research
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    • v.41 no.3
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    • pp.281-285
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    • 2001
  • This study was performed to investigate the gross anatomical features and microscopical structures of the hemal nodes and the hemolymph nodes in the sheep. The hemal nodes and hemolymph nodes were observed mainly in periphery of the thoracic and abdominal aortae of the animals. The size of hemal nodes was generally smaller than that of the hemolymph nodes, and the shape of the both organs was spherical or ovoid. The color of the hemal nodes was red, while that of the hemolymph nodes was grary with red bands. The hemal nodes were surrounded by a relatively thick connective tissue capsule and there were extensive subcapsular sinuses distended by a great number of erythrocytes. Although a few number of lymphatic nodules and small areas of diffuse lymphatic tissues were observed in the parenchyma, no typical cortex and medulla were defined in the hemal node. Small numbers of blood vessels were found at the connective tissue capsule but lymph vessel was not observed microscopically in this organ. The hemolymph nodes were covered by a relatively thick connective tissue capsule and there was a hilus in each node. The parenchyma was divided into cortex and medulla. The cortex was composed of a few numbers of lymphatic nodules and some diffuse lymphatic tissues. The medulla comprised medullary sinuses and cords. Afferent and efferent lymph vessels were observed at the periphery of the capsule adn the hilus, respectively. The subcapsular and medullary sinuses were not extensive but filled with small numbers of erythrocytes. The stroma of hemal node and hemolymph node was composed of reticular cells and fibers, and the capsule and trabecula consisted of collagenous fibers with smooth muscle fibers.

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Cloning of a Hemolytic Mosquitocidal Delta-endotoxin Gene (cyt) of Bacillus thuringiensis 73E10-2 (serotype 10) into Bacillus subtilis and Characterization of the cyt Gene Product

  • Kim, Kwang-Hyeon;Ohba, Michio;Kim, Byung-Woo
    • Journal of Microbiology and Biotechnology
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    • v.6 no.5
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    • pp.326-330
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    • 1996
  • To illustrate whether a hemolysin in $\delta$-endotoxins of Bacillus thuringiensis strain 73E10-2 and subsp. israelensis had immunological identity, a cyt gene of the strain 73E10-2 which encodes a hemolysin was cloned to B. subtilis (transformant 2753). The transformant 2753 containing cyt gene produced the hemolysin which lysed sheep erythrocytes after treatment of proteinase K. The hemolysin was proved also to be toxic against mosquito larvae (Aedes aegypti). The molecular weight of the hemolysin produced from the transformant 2753 was determined to be about 25 kDa by SDS-PAGE and immunoblot. The hemolysin in $\delta$-endotoxin of subsp. israelensis and subsp. kyushensis did not react on immunoblot using polyclonal anti-$\delta$-endotoxin of the strain 73E10-2, but 70-140 kDa mosquitocidal toxins in $\delta$-endotoxin of subsp. kyushuensis reacted.

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Biological Response Modifiers Influence Structure Function Relationship of Hematopoietic Stem and Stromal Cells in a Mouse Model of Leukemia

  • Basu, Kaustuv;Mukherjee, Joydeep;Law, Sujata;Chaudhuri, Samaresh
    • Asian Pacific Journal of Cancer Prevention
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    • v.13 no.6
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    • pp.2935-2941
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    • 2012
  • Biological response modifiers (BRMs) can alter interactions between the immune system and cancer cells to boost, direct, or restore the body's ability to fight disease. Mice with ethylnitrosourea- (ENU) induced leukemia were here used to monitor the therapeutic efficacy of lipopolysaccaride (LPS), Bacillus Calmette Guerin (BCG) and sheep erythrocytes (SRBC). Flow cytometry based CD34+ positivity analysis, clonogenicity, proliferation and ultrastructure studies using scanning electron microscopy (SEM) of stem cells in ENU induced animals with and without BRMs treatment were performed. BRMs improved the stem-stromal relationship structurally and functionally and might have potential for use as an adjunct in human stem cell therapy.

Experimental Study of Hwanhonsan water extract on immunologic control function (환혼산전탕액(還魂散煎湯液) 면역조절반응(免疫調節反應)에 미치는 실험적(實驗的) 연구(硏究))

  • Song, Hyo-Won;Kang, Soon-So;Ryu, Do-Gon
    • The Journal of Korean Medicine
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    • v.18 no.1
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    • pp.446-448
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    • 1997
  • This experiment was carried out to evaluate the immunological effects of Hwanhonsan extract. Hwanhonsan administration into mice enhanced Arthus reaction and DTH to sheep erythrocytes, and NK cells activities. Hwanhonsan extract augmented the DNA synthesis of mitogen-activated lymphocytes. Hwanhonsan also stimulated leucocyte migration ability, MIF and IL-2 production of T lymphocytes, but not IL-6 production of B cells. These results suggested that effect of Hwanhonsan might be chiefly due to nonspecific enhancement of NK cell activities and cell mediated immune responses.

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Studies on the Hemolytic Activities of Korean Wild Mushrooms (III) - Hemolytic Characteristics and in vivo Toxicity of Hemolysin of Hebelma crustuliniforme - (한국산 야생버섯의 용혈작용에 대한 연구 - 제 3보 : 무우자갈버섯(Hebeloma crustuliniforme) 용혈독소의 용혈특성 및 in vivo 독성 -)

  • Yang, Hee-Jung;Lee, Ji-Seon;Chung, Kyeong-Soo
    • The Korean Journal of Mycology
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    • v.30 no.2
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    • pp.119-123
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    • 2002
  • In the previous studies, we surveyed 68 Korean wild mushrooms for their hemolytic activity and found that cold-water extract of Hebeloma crustuliniforme contained heat-resistant hemolysin. In this study, partially purified hemolysin of the mushroom was obtained by cold-water extraction followed by precipitation with ammonium sulfate, solubility fractionation and then dialysis. The hemolysin was found to be > 12,000 in molecular weight and its optimal hemolytic temperature was $37^{\circ}C$ and it's hemolytic activity, on washed erythrocytes and unwashed erythrocytes, respectively, was in the order of sheep > rat > human ${\geq}$ mouse > chicken and sheep > mouse > human ${\geq}$ rat > chicken. When ip injected into ICR mice at 1.38 mg/kg, it incurred prompt hemolysis as well as severe renal toxicity and hepatotoxicity. These results strongly suggest that the toxicity of Hebeloma crustuliniforme, which had been well-known as a toxic wild mushroom, may be at least partly due to its hemolysin.

Studies on the Activity of Immune Regulatory Cells in the Korean Native Cattle : I. E Rosette Formation Rate of Peripheral Blood Lymphocytes (한우(韓牛)에서 면역조절세포(免疫調節細胞)의 활성(活性)에 관한 연구(硏究) : I. 말초혈액(末梢血液) 임파구(淋巴球)의 E Rosette 형성능(形成能))

  • You, Nam-sun;Kim, Jong-myeon;Song, Hee-jong;Chai, Hyo-seok;Kang, Myeong-dai;Lee, Ju-mook
    • Korean Journal of Veterinary Research
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    • v.27 no.2
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    • pp.253-258
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    • 1987
  • The erythrocytes(E) rosette forming capacity of peripheral blood lymphocytes(PBL) in Korean native cattle was determined with 2-aminoethylisothiouronium bromide hydrobromide(AET) and dextran(Dex)-treated sheep erythrocytes(SRBC). To further standardize the assay, optimum concentration of AET and/or Dex-treatment and incubation time for rosette forming cell(RFC) counts were determined. In untreated SRBC resuspended in the rosetting medium(RPMI 1640 containing 10% FCS), PBL from 7 animals formed low percentage of rosettes($7.8{\pm}6.0%$). Both AET and Dex treatment not only enhanced the rosette formation but also made it easy to enumerate rosettes by increasing numbers of SRBC attached on them. SRBC treated with 0.1M AET for 20 min or 8% Dex formed the highest percentages of rosettes, ($35.7{\pm}6.0%$ and $48.3{\pm}4.7%$, respectively) and were used in subsequent studies. With SRBC treated with 0.1M AET for 20 min and suspended in 8% Dex, the maximum RFC observed were $56.6{\pm}6.8%$ in female and $65.8{\pm}6.3%$ in male and the rates of RFC did not change significantly between 3 and 20 hr incubation time at ${4^{\circ}C}$.

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Comparative study of Photobacterium damselae subsp. damselae and Vibrios on pathogenicity in vitro (In vitro에서 Photobacterium damselae subsp. damselae와 Vibrio 속 세균의 병원성 비교)

  • Kwon, Mun-Gyeong;Kim, Myoung-Sug;Cho, Byoung-Youl;Kim, Jin-Woo;Park, Soo-Il
    • Journal of fish pathology
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    • v.20 no.1
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    • pp.71-81
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    • 2007
  • Photobacterium damselae subsp. damselae and 4 Vibrio spp.(V. anguillarum, V. splendidus, V. harveyi and V. ordalii) were isolated from the diseased olive flounders, Paralichthys olivaceus. The isolates were tested on the pathogenicity in vitro. The properties of extracellular products(ECPs) were investigated with enzymatic activities, hemolytic activities toward the sheep and olive flounder erythrocytes, and cytotoxicity activities on the cell-line. And potential signal transduction pathways of the bacterial internalization were detected by using signal transduction inhibitors. P. damselae was high in phospholipase activity, hemolytic activity to olive flounder erythrocytes and cytotoxicity activity. And P. damselae had diversified internalizing pathways as compared to isolated vibrios. Therefore, these activities may be related with pathogenicity of P. damselae.