• 제목/요약/키워드: renal cortex

검색결과 130건 처리시간 0.021초

비글견에서 신장 아밀로이드증 증례 (Renal Amyloidosis in a Beagle)

  • 정주현;진재봉;이현욱;최민철
    • 한국임상수의학회지
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    • 제31권6호
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    • pp.535-538
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    • 2014
  • 8년령의 수컷 비글견이 이틀 동안 식욕 부진, 구토, 기력 저하를 주증으로 내원하였다. 혈액학적 검사에서 경등도의 질소혈증과 심각한 저알부민혈증, 뇨 검사에서 심각한 단백뇨가 관찰되었다. 복부 초음파 검사에서 양쪽 신장의 크기가 증가하고 미만성 고에코의 피질이 두드러지게 관찰되었다. 신장 생검과 조직 검사 결과 신장 아밀로이드증으로 확진되었다. 3 개월 동안 환자는 적극적인 내과적 관리를 받았고, 보호자는 환자의 삶의 질에 만족하였다. 이후 심각한 질소혈증과 콩팥증후군이 발생하여 안락사가 실시되었다.

Effect of Probenecid on Tetraethylammonium (TEA) Transport Across Basolateral Membrane of Rabbit Proximal Tubule

  • Choi, Tae-Ryong;Kim, Yong-Keun
    • The Korean Journal of Physiology
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    • 제30권2호
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    • pp.249-256
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    • 1996
  • The effect of probenecid on the transport of tetraethylammonium (TEA) was studied in renal cortical slices and isolated membrane vesicles to investigate the interaction of organic anion with the organic cation transport system in proximal tubule. Probenecid reversibly inhibited TEA uptake by renal cortical slices in a dose-dependent manner over the concentration range of 1 and 5 mM. The efflux of TEA was not affected by the presence of 3 mM probenecid. Kinetic analysis indicated that probenecid decreased Vmax without significant change in Km. Probenecid inhibited significantly tissue oxygen consumption at concentrations of 3 and 5 mM. However, probenecid did not significantly reduce TEA uptake in brush border and basolateral membrane vesicles prepared from renal cortex even at a concentration as high as 10 mM. These results indicate that probenecid reduces TEA uptake in cortical slices by inhibiting tissue metabolism rather than by an interaction with the organic ration transporter.

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Renal Candidiasis in a Masked Palm civet (Paguma larvata)

  • Kim, Dae-Yong;Yoo, Han-Sang;Bae, Ji-Seon;Park, Jae-Hoon;Park, Ju-Yeon;Kim, Young-Kun;Jung, Young-Mok
    • 한국수의병리학회:학술대회논문집
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    • 한국수의병리학회 2000년도 추계학술대회 및 정기총회
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    • pp.22-22
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    • 2000
  • A case of renal candidiasis is reported in a 4-year-old male Masked Palm civet (Paguma larvata). On necropsy, the kidneys were bilaterally swollen, pale and had numerous 1 to 3 mm diameter white foci throughout the parenchyma on cut section. The urinary bladder was filled with opaque and milky exudate. Histologically, severe infiltration of neutrophils and macrophages and necrosis were noted in the interstitial areas of both cortex and medulla and in the lumens of renal tubules and collecting duct often resulting in cystic dilation of the tubules. (omitted)

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New platinum-complex compounds with reduced nephrotoxicity discovered in long term histoculture of human renal cortex

  • Chang, S-G.;Jung, J.C.;Rho, Y.S.;Kwon, D.U.;Hoffman, R.M.
    • 한국응용약물학회:학술대회논문집
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    • 한국응용약물학회 1995년도 춘계학술대회
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    • pp.124-124
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    • 1995
  • Cisplatinum is often effective in cancer treatment, but potent nephrotoxicity limits its clinical use. We have, therefore, developed new anticancer drugs that contain platinum. We have synthesized six new platinum compounds based on Figure 1. Drugs were initially administrated at 5${\times}$10$\^$-4/M with 48 hours exposure in monolayer cultures of primary rabbit proximal tubular cells and human renal cortical cells with the M.T.T. endpoint to measure toxicity. Drug concentrations of 10$\^$-3/M, 10$\^$-4/M, and 10$\^$-5/M with 72 hours exposure were used for human renal cortical tissues in 7 weeks histoculture with toxicity measured by the glucose-consumption endpoint. From these studies, we determined that the new platinum drugs have lower nephrotoxicity than cisplatinum. Drugs D, E, and H. have lower nephrotoxicity than the other new drugs. We are currently measuring the anticancer efficacy of drugs D, E, and H.

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인슐린비의존형 당뇨병 마우스 $C57BL/KsJ-Lepr^{db}/Lepr^{db}$ 의 수신증 발생 예 (Spontaneous Hydronephrosis in $C57BL/KsJ-Lepr^{db}/Lepr^{db}$ Mouse, an animal Model for Human NIDDM)

  • 정수연;윤영민;성제경
    • 한국수의병리학회지
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    • 제3권2호
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    • pp.93-94
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    • 1999
  • Spontaneous hydronephrosis was found in a 19 month-old female C57BL/KsJ-Lep $r^{db}$ / Lep $r^{db}$ mouse. We described the gross and histological appearance of spontaneous in db mouse The left kidney was dilated and filled with urine. Microscopically the renal pelvis was remarkedly dilated and the renal cortex and renal papilla were flattened.

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개에서 포도껍질 섭취 후 발생한 급성신부전 치료 증례 (Treatment for acute renal failure occurred by ingestion of grape skins in a dog)

  • 오현욱;전형규;최호정;이영원;송근호
    • 대한수의학회지
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    • 제48권2호
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    • pp.215-218
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    • 2008
  • A 2-year-old, female, Maltese dog (3.2 kg of body weight) was referred to the Veterinary Medical Teaching Hospital, Chungnam National University with vomiting, anorexia and depression. Twelve hours prior to the onset of clinical signs, the dog ingested some grape skins (about 60 g). Physical examination at the time of presentation showed peripheral edema and mucous pallor. Blood and blood chemical analysis revealed anemia and moderate azotemia with elevated blood urea nitrogen (107.2 mg/dl), creatinine (6.3 mg/dl) and hyperphosphatemia (11.3 mg/dl). Echogenicity of renal cortex were observred by ultrasonography. The dog was diagnosed as acute renal failure occurred by grape skin toxicosis. The dog was treated with supportive care such as fluid therapy, diuretics (furosemide) and phosphorus binder (almagate). A normal condition of blood and blood chemical findings and clinical signs was observed at five days after treatment, and prognosis is good to date.

White-spotted kidney가 동반된 송아지의 패혈증성 대장균증 (Septicemic colibacillosis accompanied by white-spotted kidney in a calf)

  • 윤순식;배유찬;이희수;양동군;권용국;한홍율
    • 대한수의학회지
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    • 제45권1호
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    • pp.99-103
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    • 2005
  • We report septicemic colibacillosis accompanied by white-spotted kidney in a 30-day old female Holstein-Friesian dairy calf. Grossly, there were numerous white spots sized average 0.5cm in diameter in both kidneys. When sectioned sagittally, there were radially oriented gray streaks extending outward and reaching the renal cortex. The renal papillae were ulcerated, white to gray in color and very friable. Histologically, there was extensive purulent inflammation characterized by severe neutrophilic cellular infiltrations in the tubular lumens and interstitia. In addition, massive coagulative necrosis were found in the apices of papillae. Numerous Gram-negative bacterial colonies were detected in both of the renal and lung tissues. Beta-hemolytic Escherichia coli (E. coli) was purely isolated from the renal parenchyma, peritoneal surface and pleural surface. Based on the above results, we suggest that the generalized septicemia with pyelonephritis may be oriented from the lower urinary tract infection with E. coli in this case.

한국인 간장 및 신장피질에 함유된 카드뮴, 구리, 수은, 아연 함량과 메탈로치오나인과의 관계 (Relationships Between Cadmium, Copper, Mercury, Zinc Levels and Metallothionein in the Liver and Kidney Cortex of Korean)

  • 이상기;유영찬;윤여표;양자열;오승민;정규혁
    • Environmental Analysis Health and Toxicology
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    • 제19권4호
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    • pp.383-388
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    • 2004
  • In order to elucidate the relationships between cadmium, copper, mercury, zinc levels and metallothionein in the liver and kidney cortex of Korean, the levels of Cd, Zn, Hg, Cu and metallothionein (MT) were determined in the kidney cortex and liver of 50 subjects deceased in the period of January-November, 2001 in the area of Seoul and Gyeonggi Province of Korea. The mean age of the population studied was 36.3+/-12.3 years. The tissues were digested with microwave digestion system and the elements were determined by inductively coupled plasma atomic emission spectrometry. MT was determined by the Cd-hemoglobin affinity assay. The determined levels (mean+/-SD) were: 33.9+/-18.9 micrograms Cd/g wet weight; 47.5+/-12.6 micrograms Zn/g wet weight; 2.5+/-0.57 microgram Cu/g wet weight; 0.26+/-0.31 micrograms Hg/g wet weight, 4.0+/-3.1 mg MT/g wet weight in renal cortex and 2.5+/-1.9 micrograms Cd/g wet weight; 46.9+/-15.0 micrograms Zn/g wet weight; 6.2+/-2.5 micrograms Cu/g wet weight; 0.10+/-0.15 micrograms Hg/g wet weight, 0.92+/-0.57 mg MT/g wet weight in the liver. Positive relationships between Cd and MT, sum of four divalent metal and MT in the kidney cortex were observed. No other correlation was found between Cu and MT, Hg and MT, Zn and MT in either organs.

요도하열 송아지에서 요로감염증례 (A Case of Urinary Tract Infection in Calf with Hypospadias)

  • 박용상;양형석;고민희;고진석;조상래;김남영;강태영
    • 한국임상수의학회지
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    • 제29권4호
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    • pp.352-355
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    • 2012
  • Hypospadias is a rare congenital malformation of the urethra reported in cattle. The urethral lumen of male indigenous Korean calf is open along the ventral aspect of the penis in the perineal region. Renal abscess and renal stone formation causing urinary tact infection has not been reported in hypospadia calves. The objective of this study was investigation for renal abscess and renal stone formation through autopsy. Histopathological examination and laboratory tests were performed. At autopsy, the pustules were formed on the right renal cortex, and the renal medulla abscess were formed on right and left part of the renal pelvis. Histopathological finding, this case was diagnosed as severe acute suppurative and necrotizing pyelonephritis, and severe chronic interstitial nephritis with fibrosis and moderate multifocal acute cystitis with edema. Milky exudate of the kidney has been identified as Actinomyces meyeri using the VITEK-2 system for identification of bacteria, and the stone has been identified as carbonate apatite using FT-IR system for quantification analysis. This case report describe the hypospadias complicated with urinary tract infection due to carbonate apatite stones and Actinomyces meyeri.

Changes in Phosphate Transporter Activity Evaluated by Phosphonoformic Acid Binding in Cadmium-Exposed Renal Brush-Border Membranes

  • Chung, Jin-Mo;Ahn, Do-Whan;Kim, Kyoung-Ryong;Park, Yang-Saeng
    • The Korean Journal of Physiology and Pharmacology
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    • 제3권5호
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    • pp.513-519
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    • 1999
  • Direct exposure of renal tubular brush-border membranes (BBM) to free cadmium (Cd) causes a reduction in phosphate (Pi) transport capacity. Biochemical mechanism of this reduction was investigated in the present study. Renal proximal tubular brush-border membrane vesicles (BBMV) were isolated from rabbit kidney outer cortex by Mg precipitation method. Vesicles were exposed to $50{\sim}200\;{\mu}M\;CdCl_2$ for 30 min, then the phosphate transporter activity was determined. The range of Cd concentration employed in this study was comparable to that of the unbound Cd documented in renal cortical tissues of Cd-exposed animals at the time of onset of renal dysfunction. The rate of sodium-dependent phosphate transport $(Na^+-Pi\;cotransport)$ by BBMV was determined by $^{32}P-Iabeled$ inorganic phosphate uptake, and the number of $Na^+-Pi$ cotransporters in the BBM was assessed by Pi-protectable $^{14}C-labeled$ phosphonoformic acid $([^{14}C]PFA)$ binding. The exposure of BBMV to Cd decreased the $Na^+-Pi$ cotransport activity in proportion to the Cd concentration in the preincubation medium, but it showed no apparent effect on the Pi-protectable PFA binding. These results indicate that an interaction of renal BBM with free Cd induces a reduction in $Na^+-Pi$ cotransport activity without altering the carrier density in the membrane. This, in turn, suggest that the suppression of phosphate transport capacity $(V_{max})$ observed in Cd-treated renal BBM is due to a reduction in $Na^+-Pi$ translocation by existing carriers, possibly by Cd-induced fall in membrane fluidity.

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