• Title/Summary/Keyword: Central vein

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Prolonged Systemic Delivery of Streptokinase Using Liposome

  • Kim, In-Sook;Choi, Han-Gon;Choi, Hee-Sung;Kim, Bak-Kwang;Kim, Chong-Kook
    • Archives of Pharmacal Research
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    • v.21 no.3
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    • pp.248-252
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    • 1998
  • To prolong the biological half-life of streptokinase, a thrombolytic agent, streptokinase-bearing liposome with and distearolyphosphatidyl ethanolamine-N-poly (ethylene glycol) 2000 (DSPEPEG 2000) was prepared and evaluated. Streptokinase-bearing liposomes composed of distearolyphosphatidylcholine (DSPC), cholesterol and cholesterol-3-sulfate with DSPE-PEG 2000 was prepared by the freeze-thawing method and administered via femoral vein to rats (15000 IU/kg). The activity of streptokinase in plasma was determined by the method based on the amidolytic activity of streptokinase-plasminogen complex. Pharmacokinetic parameters of streptokinase incorporated in liposomes were compared with those of streptokinase alone. The $T_{1/2}$ and $AUC_\infty$ streptokinase incorporated in DSPC-PEG liposome increased 16.3- and 6.1-fold, respectively, compared with those of streptokinase alone. Streptokinase-bearing long-circulating liposome could increase the circulation time of streptokinase in blood and expect longer thrombolytic activity compared with streptokinase alone.

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Venous Varix of the Digit - Two Cases Report - (수지에 발생한 정맥류 - 2예 보고 -)

  • Lee, Jin-Seok;Jung, Young-Jin;Sohn, Hyung-Bin;Hong, In-Pyo
    • Archives of Reconstructive Microsurgery
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    • v.17 no.1
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    • pp.55-59
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    • 2008
  • Varix of the digit is generally defined as an enlarged, tortuous palmar digital vein with or without thrombus within it. It usually presents as a firm, blue mass on the volar aspect of the finger. Mechanical compression or chronic trauma to veins on the volar surface of a digit appears central to the pathogenesis of this lesion. Aging phlebectasia has also been considered as a cause of this lesion in the elderly. A tourniquet test may be useful in demonstrating the presence of a digital varix, but it is confirmed by postoperative microscopic examination. Excision of a symptomatic lesion has proven to be curative. We report two cases of symptomatic digital varix which developed in the fourth finger with a review of literatures.

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Histological Observations of the Parenchymal Organs of the Rats, Rabbits and Dogs Injected with Rompun (Rompun을 투여(投與)한 흰쥐 가토(家兎) 및 견(犬)의 실질장기(實質臟器)에 대한 조직학적관찰(組織學的觀察))

  • Oh, Kyu-shil;Lee, Cha-soo
    • Korean Journal of Veterinary Research
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    • v.24 no.2
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    • pp.127-136
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    • 1984
  • The present study was carried out to observe the histological changes of the parenchymal organs of the rats, rabbits and dogs intramuscularly injected with Rompun. The results observed are snmmarized as follows; The hematologic changes of the rabbits and dogs administered with Rompun were a pronounced decrease in erythrocytes and leucocytes. The percentage of lympocytes was decreased, while that of neutrophils was increased. There were severe hyperemia of spleen, hyperemia and extention of the central vein of the liver, centrilobular degeneration of liver, hyperemia and hemorrhage of the kidney, necrosis and hydropic degeneration of renal tubule, hyperemia of pulmonary alveolar septa and pulmonary edema. and in the cases injected with Rompun and histamine or pentothal sodium at the same time, the microscopical findings described above were more conspicuous than the cases injected with Rompun alone.

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Electron Microscopical Observations of Hepatic Cells in Korean Native Goat Injected with Clostridium perfringens Toxin (Clostridium perfringens독소(毒素)를 주사(注射)한 재래산양(在來山羊) 간장(肝臟)의 전자현미경적(電子顯微鏡的) 관찰(觀察))

  • Lee, Cha-Soo
    • Korean Journal of Veterinary Research
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    • v.22 no.2
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    • pp.187-195
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    • 1982
  • This paper dealt with the light microscopical and electron microscopical findings on the morphological changes of the liver of Korean native goat injected with toxin (culture filtrate) of Clostridium perfringens which was isolated from Korean native cattle died of acute Clostridium perfringens enterotoxemia. The results observed are summarized as follows. In the microscopical findings, hyperemia and minute hemorrhage of the liver parenchyma, dilatation of hepatic central vein and centrilobular necrosis of liver, cloudy swelling and hydropic degeneration of hepatic cells, and appearance of light eosinophilic granular bodies in the vacuoles were recognized. In the electron microscopical findings, appearance of pinocytotic vesicle (coated vesicle), fusion of these vesicles, formation of vacuole and accumulation of minute granular proteinous materials in the vacuole were observed in the hepatic cells. Decreased number of glycogen granules, swelling and destruction of mitochondria, proliferation of smooth-surfaced endoplasmic reticulum, enlargement of rough-surfaced endoplasmic reticulum, dispersal of thready agranular membranous structure and appearance of secondary lysosome were recognized in the hepatic cell cytoplasm.

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Surgical Treatment of A-V Fistula Following Lumber Laminectomy (요추 추굴절제술후에 발생한 동정맥루의 외과적 치료 -증례보고-)

  • 장택희
    • Journal of Chest Surgery
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    • v.27 no.5
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    • pp.399-401
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    • 1994
  • We experienced one case of surgical treatment of A-V fistula between the right common iliac artery and the right common iliac vein after lumbar laminectomy. The average vascular surgeon does not have extensive experience with this disorder owing to its rarity. Arteriovenous fistula of the aorta and its major branches present an unparalleled challenge in patient care. Because of their central location, blood flow through these fistulas may be massive;the associated complications are usually dramatic, resulting in severe refractory congestive heart failure, massive venous hypertension, or extensive hemorrhage during an illfated surgical repair.For this reason, it behooves one to become well acquainted with the problem in order to avoid morbid complications and thus ensure optimal patient care.

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Liver Cirrhosis of Korean Native Goat in Korea : A Case Report (산양의 Liver cirrhosis 발생보고)

  • 민병만;박경애;김환균;조용성;김성열;구찬희;정운익;김홍집
    • Korean Journal of Veterinary Service
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    • v.16 no.1
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    • pp.57-64
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    • 1993
  • This survey was performed to report rare outbreak of liver cirrhosis in Korean native goat (KNG) which was died of Yangpyeong's goat farm on Feb. 1992. The examination for the KNG was carried out by clinical signs, necropsy and various lab-oratory test including parasitic, bacterial and histological test. The KNG looked jaundice, ascite, hemorrhage of lumen, abomasum and intestine, and brownish smooth cirrhotic liver at necropsy. Histological examination for liver revealed considerable proliferation of connective tissue and piecemeal necrosis which was caused by chronic active inflammation in interlobules and intralobules. There were atrophic micro and macro nodules which were sur-rounded by connective tissue. The lobular structure lack almost all central vein. The portal areas appearred proliferation of bile ducts, blood vessels and connective tissues. These connective tissue infiltrated heavily with plasma cells, Iymphocytes and histocytes. Histological examination for brain proved to be hepatic encephalopathy by virture of congestion and edema in cerebral medullary. From these results were demonstrated miked nodular, active, postnecrotic liver cirrhosis.

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Effect of Diltiazem on Renal Function in the Dog (딜티아젬의 개 신장기능에 미치는 영향)

  • Ko, Suk-Tai;Lim, Kwang-Nam
    • YAKHAK HOEJI
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    • v.38 no.5
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    • pp.568-578
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    • 1994
  • This study was performed in order to investigate the effect of diltiazem, which is a $Ca^{2+}$ channel blocker of benzothiazepine derivatives, on renal function in the dog. Diltiazem, when infused into the vein or carotid artery, produced the antidiuresis accompanied with the decreased excretion rates of sodium and potassium in urine$(E_{Na},\;E_K)$ and the increased reabsorption rates of sodium and potassium in renal tubules$(R_{Na},\;R_K)$. Diltiazem, when infused into a renal artery, exhibited the diuresis along with the increased renal plasma flow(RPF), osmolar clearance$(C_{osm})$, $E_{Na}$ and $E_K$, and decreased $R_{Na}$ and $R_K$ in only infused kidney. Above results suggest that diltiazem possess both antidiuretic action through central action and diuretic action by direct inhibition of electrolytes reabsorption rates in renal tubules, mainly distal tubule.

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Intensification Of Cognitive Activity Of Higher Education Seekers As A Central Problem Of Modern Didactics

  • Kharkivska, Aryna;Honcharuk, Valentyna;Tyurina, Valentyna;Yuldasheva, Svitlana;Koval, Liudmyla;Poliakova, Olha
    • International Journal of Computer Science & Network Security
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    • v.22 no.1
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    • pp.161-166
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    • 2022
  • The article describes technologies in a unified methodological vein, since teaching based on them at the present stage is clearly eclectic in nature and depends on the individual - "biased" - professional attitude of teachers to technologies and those ideologies that gave rise to them. In this article, the future teacher will get acquainted with only some of these technologies. With the hope that this article will help the future teacher understand the essence of the technological approach, determine his pedagogical position and improve his pedagogical culture.

Mesenteric Approach in Pancreatoduodenectomy

  • Akimasa Nakao
    • Journal of Digestive Cancer Research
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    • v.4 no.2
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    • pp.77-82
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    • 2016
  • The 26th World Congress of the International Association of Surgeons, Gastroenterologists and Oncologists (IASGO) was held in Seoul, Korea from September 8 to 10, 2016. In this congress, I gave a State-of-the-Art Lecture II entitled "Mesenteric Approach in Pancreatoduodenectomy." The ideal surgery for pancreatic head cancer is isolated pancreatoduodenectomy, which involves en bloc resection using a non-touch isolation technique. My team has been developing isolated pancreatoduodenectomy for pancreatic cancer since 1981, when we developed an antithrombogenic bypass catheter for the portal vein. In this operation, the first and most important step is the use of a mesenteric approach instead of Kocher's maneuver. The mesenteric approach allows dissection from the non-cancer infiltrating side and determination of cancer-free margins and resectability, followed by systematic lymphadenectomy around the superior mesenteric artery. This approach enables early ligation of the inferior pancreatoduodenal artery and total mesopancreas excision. It is the ideal surgery for pancreatic head cancer from both oncological and surgical viewpoints. The precise surgical techniques of the mesenteric approach are herein described.

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Development of PVY resistant flue-cured $F_1$ hybrid variety 'KF120'

  • Kim, Jae-Hyun;Park, Yong-Hack;Chung, Youl-Young;Kim, Kwang-Chul;Shin, Seung-Gu;Kuem, Wan-Soo
    • Journal of the Korean Society of Tobacco Science
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    • v.31 no.2
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    • pp.69-74
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    • 2009
  • Potato Virus Y (PVY), PVY-vein necrosis strain, causes severe damage at growth, yield and leaf quality on flue-cured tobacco in Korea. The development of PVY resistant flue-cured varieties without quality deterioration is therefore urgently desired. The flue-cured tobacco, KF120 (Korea Flue-cured 120), was a male-sterile (ms) $F_1$ hybrid derived from the cross between msKF117 and KF0007-7. msKF117 was developed from the cross of NC82 with N. africana and KF0007-7 was developed from the cross of KF117 with NC82. The agronomic characteristics and disease resistance of KF120 was evaluated during 2006-2007 field performance test. It showed better growth characteristics and yield performance than standard cultivar KF109. It had 2 more leaves per plant, flowered 2 days later than KF109. The yield of cured leaf of KF120 was increased by about 5% compared to KF109. The chemical composition and physical properties of the cured leaf of KF120 were as much acceptable as those of KF109. KF120 showed high resistance to PVY compared to KF109. It showed a similar mode of resistance to bacterial wilt and black shank as was found in KF109.