• Title/Summary/Keyword: cell infection

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Changes in Blood Parameters of the Cultured Flounder Paralichthys olivaceus Artificially Infected with Staphylococcus epidermidis (Staphylococcus epidermidis로 인위감염시킨 양식넙치의 혈액지수 변동)

  • Sim, Doo-Saing;Jung, Sung-Hee;Park, Hyung-Sook;Chun, She-Kyu
    • Journal of fish pathology
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    • v.6 no.2
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    • pp.123-131
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    • 1993
  • The cultured flounder(Paralichthys olivaceus) was injected with Staphylococcus epidermidis, various hematological and blood chemical changes were monitored over 96 hours. Red blood cell count, hemoglobin hematocrit. mean corpuscular hemoglobin concentration and mean corpuscular hemoglobin were significantly depressed after 24 to 48hours. Total protein, albumin, globulin and total cholestrol were significantly increased by the 24 or 48 hours, Glucose, bilirubin and transaminase were significantly depressed by 24 to 48hours. Erythrocytes were gotten shorter with round-shaped after 48hours inoculated with S. cpidermidis. Hemolytic erythrocytes and neutrophils were showed after 72hours inoculated with S. epidermidis. Price-Jones curve was transformed for left shift after 48hours inoculated with S. epidermidis, therfore staphylococcia appeared hemolytic anemia in the artificially infection.

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Effects of lipopolysaccharide and CpG-DNA on burn-induced skin injury

  • Park, Byoung-Kwon;Kim, Dong-Bum;Cho, Sun-Hee;Seo, Jae-Nam;Park, Jae-Bong;Kim, Yong-Sun;Choi, Ihn-Geun;Kwon, Hyeok-Yil;Lee, Young-Hee;Kwon, Hyung-Joo
    • BMB Reports
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    • v.44 no.4
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    • pp.273-278
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    • 2011
  • Destruction of the skin barrier by thermal injury induces microbial invasion, which can lead to the development of systemic infection and septic shock. Microbial pathogens possess pathogen-associated molecular patterns (PAMPs), which are recognized by conserved receptors. To understand the role of PAMPs in thermal injury-induced mice, LPS or CpG-DNA were topically applied to dorsal skin after thermal injury. We observed an increase in the number of inflammatory cell infiltrates as well as thickening in the dermis upon treatment with LPS or CpG-DNA. We also found that expression of IL-$1{\beta}$, MIP-2, and RANTES induced by thermal injury was enhanced by LPS or CpG-DNA. In addition, the proportions of $CD4^+$ and $CD^8+$ T cells in the spleen and lymph nodes were altered by LPS or CpG-DNA. These results provide important information concerning PAMPs-induced inflammation upon thermal injury and provide a basis for studying the role of PAMPs in thermal injury-induced complications.

Production of Monoclonal Antibody to Newcastle Disease Virus and its Diagnostic Use (뉴켓슬병 바이러스에 대한 단크론성 항체생산 및 진단에 이용)

  • Chung Ok Choi;Chung Gil Lee;Sung Man Cho;Jin Soo Na;Soo Hwan An;Joon Hun Kwon
    • Korean Journal of Poultry Science
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    • v.15 no.3
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    • pp.207-210
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    • 1988
  • A total of 3 hybridoma clones producting menoclonal antibody (MCA) against Newcastle disease virus(NDV) was raised by cell fusion method. The MCAs did not cross react against other avian or mammalian viruses tested. However, these antibodies reacted with all strains of velogenic and lentogenic NDVs tested indicating that they are unable to discriminate the possible antigenic differences among NDVs. All. the MCAs were classified as IgG type and did not show neutralizing and hemagglutination inhibition (HAI) activity except one clone which has low HAI activity. One of these MCA raised in mouse ascites revealed the titer of $10^6$ by indirect immunofluorescent antibody (IFA) test Using the MCA, virulent NDV could easily be detected from tracheal and conjunctival smears made 2 to 3 days after experimental infection.

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Histopathogenic Characteristics of Haemorrhagic Ulcer in Cultivated Snakehead Channa argus Artificially Infected with Aeromonas veronii (Aeromonas veronii 인공감염에 의한 양식 가물치 궤양증의 병리조직학적 특성)

  • 이훈구;이택열;김봉석
    • Korean Journal of Microbiology
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    • v.31 no.2
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    • pp.113-122
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    • 1993
  • Aeromonas veronii was isolated from the haemorrhagic ulcer of the snakehead that had been infected in natural condition, This bacterium was injected hypodermically into the healthy snakeheads and the effect was compared to the naturally infected fish. Both groups showed severe necrosis, falling off of epidermal tissue and hypodermal muscle. In both groups, severe histophathological changes were observed in gill, digestive tract and kidney just before death. Artificially injected fish showed necrosis of tissue in skin, gill and digestive tract from 2 days after injection. Then it showed necrosis or cell atrophy of tissue in kidney from 5 days after injection, and in liver and spleen just before death. Snakehead infected with haemorrhagic ulcer died within 9 days after infection, showing the symptom of skin damage and metabolic inhibition in respiration" digestion, excretion, etc. It was concluded that Aeromonas veronii (CA26) that was isolated from the naturally infected fish is the main bacterium causing haemorragic ulcer in the snakehead.

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Effect of Ethanol on Prostaglandins Production of Monocytes (에탄올이 단핵구의 Prostaglandins 생산에 미치는 영향)

  • 박란숙
    • Journal of Nutrition and Health
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    • v.24 no.2
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    • pp.97-103
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    • 1991
  • The increase in alcohol consumption level has been noticed in Korea recently. Alcohol appreciably inhibits cell mediated immunity and this may contribute to the high prevalence of serious infection such as pulmonary tuberculosis among alcoholic subjects. The present study was undertaken to examine the effect of ethanol on the cyclooxygenase metabolites of human monocyte in vitro. Monocytes were activated with 800 units of gamma interferon(IFN-${\gamma}$) for 3 days following apply of Ficool-hypaque density gradient and gelatin coated flasks for separation of monocytes. Ethanol with addition of 100mM, 300mM and 600 mM for 30 minutes to 106 monocytes with/without previous IFN-${\gamma}$ treatment caused a dose dependent decrease in the production of thromboxane B2, 6-keto-PGE1$\alpha$ and PGE2 by radioimmunoassay at 6 hours after ethanol treatment. Quite different from the findings after 6 hours there was dose dependent increase in three prostaglandins without IFN-${\gamma}$ treatment after 24 hours of incubation. With previous treatment of IFN-${\gamma}$ reduced productions of three prostaglandins at 24 hours than control is spite of ethanol stimjulation. These findings show that IFN-${\gamma}$ can inhibit alcohol induced derangement of arachidonic acid metabolism of monocytes.

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Expression of Human Immunodeficiency Virus Type 1 Tat Proteins in Escherichia coli and Application to Study Tat Functions

  • Park, Jin-Seu;Lee, Han-Gyu;Lee, Yoon;Kang, Young-Hee;Rhim, Hyang-Shuk;Choi, Soo-Young
    • BMB Reports
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    • v.33 no.4
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    • pp.337-343
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    • 2000
  • The human immunodeficiency virus type 1 (HIV-1), transactivator of transcription (Tat), is one of the viral gene products that is essential for HIV-1 replication. The HIV-l Tat protein regulates transcription from an HIV-1 long terminal repeat (LTR) and affects the gene expression of cellular proteins during infection. In order to develop an expression system to overexpress and simply purify HIV-1 Tat proteins, the HIV-1 Tat coding sequences that contain one or two exons were amplified using PCR and cloned into a pET vector, which contains a consecutive stretch of six histidine residues at the amino-terminus. The reconstituted vectors were overexpressed in the E. coli strain and the soluble recombinant proteins were purified to be homogeneity in a single step by $Ni^{+2}-nitrilotriacetic$ acid Sepharose chromatography under nondenaturing conditions. Recombinant HIV-1 Tat proteins were shown to transactivate the HIV-1 LTR promoter in a dose-dependent manner when introduced into mammalian cells. In addition, treatment of human endothelial cells with purified Tat proteins resulted in a significant increase in the level of vascular cell adhesion molecule-1 (VCAM-1) expression. These results indicate that the recombinant HIV-1 Tat proteins are active in transactivating viral and cellular promoters. The expression and purification system described in this study will facilitate in characterizing the biological functions of the Tat proteins.

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Ultrastructure of the Integument of Adult Paragonimus westermani (폐흡충 표피의 미세구조)

  • 최원영;유재을
    • Parasites, Hosts and Diseases
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    • v.23 no.1
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    • pp.111-122
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    • 1985
  • The present study was performed to observe the ultrastructure of the integument of adult Paragonimus westermani. Dogs experimentally infected with 60 metacercariae of F. westermani were autopsied 4 months after the infection. Adult p. westermani were extracted from the dogs and the fine structure was studied by means of scanning and transmission electron microscope. The findings are as follows: 1. Scanning electron microscopic findings showed that the spines and the papillae are distributed at whole body surface but the well developed spines or papaillae are shown around the oral sucker and ventral sucker. 2. At the end of the body, excretory pore was found, the shape was irregular. 3. Transmission electron microscopic findings showed that plasma membrane, tegument, basal lamina, connective tissue, circular muscle layer, longitudinal muscle layer. nerve axon and tegumental cell were observed. 4. In higher magnification, plasma membrance and bar-shaped granules were found at the outer surface of the tegument.

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Successful Treatment with Rituximab and Immunoadsorption for an Auto-Antibody Induced Bile Salt Export Pump Deficiency in a Liver Transplanted Patient

  • Quintero, Jesus;Juamperez, Javier;Gonzales, Emmanuel;Julio, Ecaterina;Mercadal-Hally, Maria;Collado-Hilly, Mauricette;Marin-Sanchez, Ana;Charco, Ramon
    • Pediatric Gastroenterology, Hepatology & Nutrition
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    • v.23 no.2
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    • pp.174-179
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    • 2020
  • We present an 8 years old girl who was diagnosed at 6 months of age of Progressive Familial Intrahepatic Cholestasis type 2. Although liver transplantation (LT) was classically considered curative for these patients, cholestasis recurrence with normal gamma-glutamyl transpeptidase (GGT), mediated by anti-bile salt export pump (BSEP) antibodies after LT (auto-antibody Induced BSEP Deficiency, AIBD) has been recently reported. Our patient underwent LT at 14 months. During her evolution, patient presented three episodes of acute rejection. Seven years after the LT, the patient presented pruritus with cholestasis and elevation of liver enzymes with persistent normal GGT. Liver biopsy showed intrahepatic cholestasis and giant-cell transformation with very low BSEP activity. Auto-antibodies against BSEP were detected therefore an AIBD was diagnosed. She was treated with Rituximab and immunoadsorption with resolution of the AIBD. As a complication of the treatment she developed a pneumocystis infection successfully treated with corticoids, cotrimoxazol and anidulafungin.

Large Intraorbital Cyst after Silicone Implant Insertion: A Case Report (Silicone Implant 삽입 후에 발생한 안와내 거대 낭종)

  • Ha, Sang Wook;Lee, Hye Kyung;Yoo, Won Min;Tark, Kwan Chul
    • Archives of Plastic Surgery
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    • v.33 no.5
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    • pp.659-662
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    • 2006
  • Purpose: Alloplastic implants, such as methylmethacrylate, Teflon, silicone, Supramid are commonly used to cover the floor defect and to prevent reherniation of the displaced orbital tissue in orbital floor fracture. Silicone implant has been used for reconstruction of orbital wall defects because of pliability, advantage of carving and chemically inert nature. However, silicone implant also has complications including infection, extrusion, pain, dystopia and tissue reaction. Cyst formation around the silicone implant is a very rare complication. According to many reports, cysts around alloplastic implant in an orbital area are mostly hemorrhagic cysts consisted of blood breakdown product with fibrous capsule cell in histologic examination. Methods: The authors report atypical case and successful treatment of intraorbital hemorrhagic cyst around silicone implant of a 37-year-old male patient. Results: Preoperative symptoms of diplopia, exophthalmos, proptosis, vertical dystopia and ectropion of lower eyelid were resolved after surgical removal of implants with surrounding capsule. Conclusion: Clinical suspicion of plastic surgeon is important in diagnosis of intraorbital cyst of patients who have history of silicone implantation and computed tomography is the standard tool of diagnosis. During the operation, caution must be taken on delivering the whole capsule of intraorbital cyst along with silicone implant to prevent recurrence of the cyst.

Pulmonary Aspergillosis in Cardiac Transplant Patients -The Report of Two Cases (심장이식후 발생한 아스페르길루스증-2례 보고-)

  • 박국양;김희정
    • Journal of Chest Surgery
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    • v.30 no.3
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    • pp.330-335
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    • 1997
  • Aspergillus Infection is a major.cause of mortality in individuals with depressed cell-mediated immunity. Despite therapy with intravenous amphotericin B and oral antifungal agents, high mortality has been reported among heart transplant recipients. We experienced two cases of pulmonary aspergillosis among 15 heart transplantation cases. Both cases were similiar in terms of age, time of diagnosis, and medication. Percutaneous needle aspiration biopsy revealed Aspergillus fumigatus in both cases. The thirst case showed multiple aspergilloma on both lung fields and were treated by IV Amphotericin B and oral itraconazole. After completion of treatment, the lesion completely disappeared and he has been followed up for more than one year in his good condition. The second case showed a single nodule on his right lower lung field and were treated by both medication and surgery. The patient recovered well and had been doing well until 4th postoperative month when he developed humoral rejection and expired.

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