• Title/Summary/Keyword: Red Blood Cell

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Effects of Autotransfusion using Cell Saver in Cardiac Surgery (개심술시 Cell Saver 를 이용한 자가수혈의 효과)

  • 정경영
    • Journal of Chest Surgery
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    • v.23 no.2
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    • pp.260-267
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    • 1990
  • During a eight month period[from December, 1988 to July, 1989], a series of 35 adults undergoing redo-valve replacement or coronary artery bypass grafting was selected to an autotransfusion group[n=10] or a control group[n=25]. The Cell Saver System[Haemonetics Corp., Graintree, Mass] was employed for autotransfusion. With this system, all blood shed in the operative field before and after cardiopulmonary bypass and remained in cardiotomy reservoir after cardiopulmonary bypass was aspirated by means of a locally heparinized collecting system. After the salvaged blood was centrifuged, the resulting red cell concentrate subsequently reinfused. The patients receiving autologous blood required significantly less banked homologous blood than their controls[3213k1020 ml and 506051931 ml, respectively: p=0.001] There were no clinical infections in the autotransfusion group, although 40% of the cultures of processed blood were positive. And there was no apparent intergroup difference of the clinical and the hematologic and hemostatic laboratory findings. We conclude that autotransfusion using cell saver is effective for saving the homologous blood transfusion in cardiac surgery.

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Hemorheological measurements in experimental animals: further consideration of cell size - pore size relations in filtrometry

  • Nemeth, Norbert;Baskurt, Oguz K.;Meiselman, Herbert J.;Furka, Istvan;Miko, Iren
    • Korea-Australia Rheology Journal
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    • v.21 no.3
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    • pp.155-160
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    • 2009
  • Micropore filtration of dilute red blood cell (RBC) suspensions is a widely known method for determining red blood cell deformability. Use of this method for cells from various laboratory animal species does require considering the effects of the cell size to pore size ratio and of suspension hematocrit. In general, previous animal studies have utilized 5% hematocrit suspensions and five micron pores, and thus conditions similar to human clinical laboratory practice. However, when used for repeated sampling from small laboratory animals or for parallel multiple samples from different sites in large laboratory animals, the volume of blood sampled and hence the hematocrit of the test suspension may be limited. Our results indicate that hematocrit levels yielding stable values of RBC pore transit time are pore size and species specific: three micron pores = $2{\sim}5%$ for dog and $3{\sim}5%$ for rat; five micron pores $3{\sim}5%$ for dog and $1{\sim}5%$ for rat. An analytical approach using a common expression for calculating transit time is useful for determining the sensitivity of this time to hematocrit alterations and hence to indicate hematocrit levels that may be problematic.

A Case of Pure Red Cell Aplasia (순수적혈구형성부전증 1 례)

  • Choi, Myung-Sook;Lee, Chae-Hoon;Cheon, Chang-Ho;Kim, Kyung-Dong;Kim, Chung-Sook;Hyun, Myung-Soo
    • Journal of Yeungnam Medical Science
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    • v.5 no.2
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    • pp.239-246
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    • 1988
  • Pure red cell aplasia is uncommon disorder characterized by finding of anemia, absence of nucleated red blood cell in the marrow, absence of reticulocytes in the peripheral blood and normal peripheral platelet and leukocytes counts. We experienced one case of pure red cell aplasia associated with hemolytic anemia characterized by hemoglobinuria, reticulocytopenia, and erythroid hypoplasia of the bone marrow. The cause of the illness was not definitely identified, but we concluded that this patient had simultaneous occurence of PRCA and hemolytic anemia following administration of diphenylhydan. toin after craniotomy rather than virus or bacteria induced. The simultaneous occurance of PRCA and hemolytic anemia is uncommon and the mechanism for diphenylhydantoin induced PRCA and hemolytic anemia is unclear.

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Comparison of Blood Components of the Antler and Jugular Vein in the Red Deer (적록사슴에서 뿔 및 경정맥 혈액의 성분비교)

  • 이경갑;부태삼
    • Journal of Veterinary Clinics
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    • v.14 no.2
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    • pp.254-257
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    • 1997
  • The blood components of not-young (young antler) were examined in the Red Deer. Blood samples were collected from the antler and jugular veins respectively. The hematological and serum chemical values were as follows; 1. RBC count of not-hyul (young antler blood) was significantly higher than that of jugular vein blood (p<0.05). However, fibrinogen concentration of rook hyul was significantly lower than that of jugular vein blood (p<0.01). WBC counts packed cell volume (PCV) and total protein fro) were not significant between nolo-hyul and jugular vein blood. 2. The concentration of phosphorous and magnesium of not-hyul were significantly higher than those of jugular vein blood (p<0.05). Albumin and glutamic oxaloacetic transaminase (GOT) of nolo-hyul were higher than those of jugular vein blood. But globulin and calcium concentration of not-hyul were lower than those of jugular vein blood. Blood urea nitrogen BUN) of rook-hyul was not significant when compared with that of jugular vein blood.

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The Effects of Kimchi on Hematological and Immunological Parameters in vivo and in vitro (In vivo와 in vitro에서 김치가 혈액성상과 면역세포배양에 미치는 영향)

  • 송영선;김미정;권명자;송영옥;이은경;윤현주
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.26 no.6
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    • pp.1208-1214
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    • 1997
  • This study was designed to know the effect of kimchi on the hematological and immunological parameters in vivo and in vitro, respectively. To study the effects of kimchi on the hematological parameters, rats(S.D., male) were divided into 4 groups and fed diets containing of 3%, 5% and 10% kimchi or kimchi free diet(control) for 6 weeks. The results of CBC(complete blood cell) tests obtained from the bloods of rates were as follows ; In 10% kimchi group, the level of WBC(white blood cells), RBC(red blood cells), Hgb(hemoglobin), Hct(hematocrit) were increased significantly than those of control group(p<0.05). MCV(mean corpuscular volume), one of the red cell indices, was also increased significantly in the animals fed 10% kimchi(p<0.05). RDW(Red cell distritution width) and PCT(plateletcrit) was lowest in 10% kimchi group(p<0.05). To examine the effects of kimchi on immune cell growth in vitro, three types of mouse immune cells-spleen cells, bone marrow cells, thymus cells-were cultured with extracts of salted Chinese cabbage, fresh kimchi and fermented kimchi(for 1 week) for 12 or 20 days. Control was supplemented with PBS(phosphate buffer saline) excluding kimchi extract. The results of spleen cell, bone marrow cell, and thymus cell cultures showed similar tendency: control medium accelerated death of cells, extracts of salted Chinese cabbage reduced the rate of cell death, and extracts of fresh kimchi and fermented kimchi promoted cell growth. From these results, it could be suggested that kimchi possibly has an effect on the hematopoietic ability and increases immune cell development and growth in vivo.

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Simultaneous measurements of red blood cell aggregation and blood viscosity in a slit rheometry with light transmission analysis (광 투사법을 이용한 슬릿 점도계에서의 적혈구 응집성 및 점도 측정에 관한 연구)

  • Park, Myung-Su;Ku, Yun-Hee;Shin, Se-Hyun;Suh, Jang-Su
    • Proceedings of the KSME Conference
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    • 2004.04a
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    • pp.1678-1681
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    • 2004
  • The light-transmission technique has been applied to a slit rheometer for measuring red blood cell aggregation as well as blood viscosity over a range of shear rates. For measurement of blood viscosity and aggregation, instantaneous pressure and transmit-light intensity are measured with time. Using a precision pressure measurement, one can determine the shear stress and shear rate. In addition, a transmitted light through a blood sample indicates degree of RBC aggregation. With abruptly flowing with high shear rate, RBCs rapidly disaggregate and the intensity of the transmitted light becomes low. When continuously flowing with decreasing shear rate, RBCs tend to re-aggregate and the corresponding transmit-intensity gradually increases with time. The light intensity as a degree of RBC aggregation is plotted against shear rate and compared with blood viscosity. The advantages of this design are dual measurement at a time, simplicity, i.e., ease of operation and no moving parts, low cost, short operating time, and the disposable kit which is contacted with blood sample.

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A Genome-wide Association Study of Copy Number Variation in Hematological Parameters in the Korean Population

  • Kim, Ka-Kyung;Cho, Yoon-Shin;Cho, Nam-H.;Shin, Chol;Kim, Jong-Won
    • Genomics & Informatics
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    • v.8 no.3
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    • pp.122-130
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    • 2010
  • Abnormal hematological values are associated with various disorders including cancer and cardiovascular, metabolic, infectious, and immune diseases. We report the copy number variations (CNVs) in clinically relevant hematological parameters, including hemoglobin level, red and white blood cell counts, platelet counts, and red blood cell (RBC) volume. We describe CNVs in several loci associated with these hematological parameters in 8,842 samples from Korean population-based studies. The data that we evaluated included four RBC parameters, one platelet parameter, and one associated with total white blood cell (WBC) count, exceeding the genome-wide significance. We show that CNVs in hematological parameters are associated with some loci, different from previously associated loci reported in single nucleotide polymorphism (SNP) association studies.

Change in Rouleau Formation of Red Blood Cells by Pulse Magnetic Field Stimulus in the Hand (펄스자기장 자극에 의한 손의 적혈구 형태학적 변화)

  • Hwang, Do Guwn
    • Journal of the Korean Magnetics Society
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    • v.24 no.1
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    • pp.28-33
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    • 2014
  • The change of rouleau formation of red blood cells in the hand stimulated by pulse magnetic field having a maximum intensity of 0.27 Tesla and pulse duration of 0.102 msec was investigated. Before pulse magnetic field stimulus, the red blood cells of test subject were adjoined over ten and the flow of cells was slowed. However after the stimulus in the hand during 10 minutes, the red blood cells adjoined over tens was spreaded out each other and its motion was fast. Also the red blood cells of left hand unstimulated by pulse magnetic field were spreaded out each other, even though the right hand was stimulated during 10 minute. It prove that the rouleau formation of red blood cells can be improve in the whole body in spite of stimulus in the hand because the blood is flowing a whole body.

Purification of Anti-ox Red Blood Cell IgG Antibody for T subset Assay (T subset정량(定量)을 위한 항우적혈구(抗牛赤血球) IgG항체(抗體)의 분리.정제(分離.精製)(I))

  • Ha, Youn-Mun;Lee, Jean-Yong;Lim, Soo-Duk
    • The Journal of the Korean Society for Microbiology
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    • v.15 no.1
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    • pp.71-75
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    • 1980
  • Antisera to ox red blood cell were prepared by intraperitoneal hypermultiple injections without adjuvant in outbred white rabits. Purified IgG fraction from these rabbits anti-ox red blood cell antiserum for T subset assay was obtained by precipitation with 50% saturated ammonium sulphate followed by DEAE-cellulose chromatography and Sephadex G-150 gel filtration. These purified IgG fraction was compared with Cappel company standard IgG fraction for $T_G$ subpopulation assay. We used home-made IgG fraction and obtained favorable results in $T_G$ subopulation assay as Cappel company standard IgG fraction.

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