• Title/Summary/Keyword: Kidney function

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CUBN mutation: a benign genetic cause of proteinuria?

  • Hyun Kyung Lee
    • Childhood Kidney Diseases
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    • v.27 no.1
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    • pp.19-25
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    • 2023
  • Proteinuria is an important risk factor for renal and cardiovascular disease. It is associated with a risk for glomerulonephritis, chronic kidney disease, and end-stage renal disease. Therefore, if persistent proteinuria is detected, kidney biopsy is considered to diagnose and treat the underlying disease. Recently, variants in the cubilin (CUBN) gene, which is associated with albuminuria, have been reported. This gene encodes cubilin, a membrane glycoprotein receptor expressed in the renal proximal tubules. Cubilin is a component of the megalin and cubilin-amnionless complex that mediates albumin reabsorption into the proximal tubules through endocytosis. A defect in cubilin leads to a reduction in albumin reuptake, resulting in albumin-dominant proteinuria. Although numerous controversies exist, several reports suggest that cubilin defects lead to proteinuria with a high portion of albuminuria but may not impair renal filtration function. If albuminuria due to reduced cubilin function is confirmed as a benign condition, we can consider using genetic studies to detect CUBN mutations in patients with proteinuria and they may not require any treatment or kidney biopsy. Here, we review recent papers on CUBN mutations and discuss the prognosis and management of individuals with this mutation.

A Review on Spleen Possesses Nutrient, Liver Possesses Blood and Kidney Possesses Essence (비장영(脾藏營) 간장혈(肝藏血) 신장정(腎藏精)에 대(對)한 고찰(考察))

  • Song, Ji-Chung;Keum, Kyung-Soo;Eom, Dong-Myung
    • Journal of Korean Medical classics
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    • v.24 no.3
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    • pp.71-74
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    • 2011
  • Objective : Nutrient Qi, Blood Qi and Essencial Qi are the most significant qi in spleen, liver and kidney. However, the origins and functions of those qi are not quite detailed somehow. Method : I will try to find out the origins and functions of Nutrient Qi, Blood Qi and Essencial Qi through "Hwangdineijing". Result : The Nutrient Qi is the essence of spleen, Blood Qi is the essence of liver and Essencial Qi is the essence of kidney. Conclusion : The Nutrient Qi has function of nourishment in human body and digestion of water and food in spleen itself. The Blood Qi has a function to make each organ work in human body and to make free coursing in liver itself. Essential Qi has a function to store each essential qi of five viscera in human body and reproduction in kidney itself.

Brain Death and Kidney Transplantation in Dogs (개의 뇌사와 신장이식)

  • 우흥명;권오경
    • Journal of Veterinary Clinics
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    • v.18 no.4
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    • pp.358-362
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    • 2001
  • Brain dead (BD) patients remain the largest source of solid organs for transplantation. BD has shown to decrease graft function and survival in rodent models. The aim of this study was to evaluate how brain death affects graft viability in the donor and kidney tolerance to cold preservation as assessed by survival in a canine transplantation. 13 Beagle dogs were used for the study. Brain death was induced by the sudden inflation of a subdural balloon catheter with continuous monitoring of arterial blood pressure and eletroencephalographic activity (n=3). Sixteen hours after conformation of brain death, kidney graft were retrieved (n=6). Non-BD donors served as controls (n=4). All kidneys were flushed with University of Wisconsin (UW) solution and preserved for 24 hours at 4$^{\circ}C$ before transplantation. Recipient survival rates, serum creatinine level were analyzed. Brain death induced the well-known Cushing reaction with a severe increase in blood pressure and tachycardia. Thereafter, cardiac function returned progressively to baseline within 8 hours and remained stable until the end of the experiment. All of dogs in both group transplanted were survived until 7 days (100%), and the kidneys showed functional early rejection at 8.3$\pm$0.5 days and 8.5$\pm$0.5 days after transplantation, in BD and allograft group, respectively. BD kidneys were functionally similar to control kidneys for 7 days after transplantated. Brain death has no deleterious effect on preservation injury and survival of dog kidney transplantation, although it induces changes in hemodynamic parameters. This study reveals that kidneys from BD donors do not exhibit more ischemia reperfusion injury, and support good early function and survival.

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Evaluation Internal Radiation Dose of Pediatric Patients during Medicine Tests Using Monte Carlo Simulation (몬테칼로 시뮬레이션을 이용한 소아 핵의학검사 시 인체내부 장기선량 평가)

  • Lee, Dong-yeon;Kang, Yeong-rok
    • Journal of radiological science and technology
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    • v.44 no.2
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    • pp.109-115
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    • 2021
  • In this study, a physical evaluation of internal radiation exposure in children was conducted using nuclear medicine test(Renal DTPA Dynamic Study) to simulate the distribution and effects of the radiation throughout the tracer kinetics over time. Monte Carlo simulations were performed to determine the internal medical radiation exposure during the tests and to provide basic data for medical radiation exposure management. Specifically, dose variability based on changes in the tracer kinetic was simulated over time. The internal exposure to the target organ (kidney) and other surrounding organs was then quantitatively evaluated and presented. When kidney function was normal, the dose to the target organ(kidney) was approximately 0.433 mGy/mCi, and the dose to the surrounding organs was approximately 0.138-0.266 mGy/mCi. When kidney function was abnormal, the dose to the surrounding organs was 0.228-0.419 mGy/mCi. This study achieved detailed radiation dose measurements in highly sensitive pediatric patients and enabled the prediction of radiation doses according to kidney function values. The proposed method can provide useful insights for medical radiation exposure management, which is particularly important and necessary for pediatric patients.

Treatment of two cases of chronic kidney disease with dietotherapy (ilaj-bil-ghiza), regimenal therapy (bukhoor aam) and Unani drugs without dialysis

  • Ansari, Shabnam;Maaz, Mohammad;Alam, Shah;Alam, Sazid;Ahmad, Ijhar
    • CELLMED
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    • v.10 no.2
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    • pp.17.1-17.5
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    • 2020
  • Background: Chronic kidney disease (CKD) is affective a large portion of the world population prompting the need for extensive healthcare resources such as lifelong dialysis or kidney transplantation. The beneficial effect of conventional therapy in controlling the CKD progression remains a challenge due to their relative efficacy, safety, and accessibility. On the other hand, Unani medicine provides a therapeutic regimen that consists of a combination of treatment from rehabilitation to herbal pharmacotherapy. Methods: Two cases of chronic kidney disease were treated with dietotherapy, regimenal therapy ('bukhoor aam') and oral herbal drugs for 2-3 weeks. Endpoints of evaluation were symptoms and signs of the CKD, kidney function test, urine albumin, urine RBC, hemoglobin and liver function test. Result: Notable improvement was observed in the endpoints. Conclusion: Unani treatment was observed preliminarily beneficial in the treatment of chronic kidney disease. Rigorous pharmacological and clinical studies should be performed to warrant their efficacy and safety in CKD individuals.

Comparative Growth Performance and Physiological Function of Physically Modified Rice Starch and Gelatinized Rice Starch in Growing Rats (물리적 변성 쌀전분과 호화 쌀전분의 생리적 효과 비교연구: 성장 능력과 장기의 생리적 기능)

  • Chang, Moon-Jeong;Kim, Myung-Hwan
    • Journal of the Korean Society of Food Culture
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    • v.18 no.6
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    • pp.592-600
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    • 2003
  • Male rats were fed a purified diet containing one of 3 experimental diets, gelatinized rice starch that was not modified physically (RC), gelatinized physically modified rice starch using ultrasonic homogenizer(RU), gelatinized physically modified rice starch using hydroshear homogenizer(RH) during 28 days. RC was used as the rice starch control. Feeding a physically modified rice starch (RU) caused an increase in liver weight and RH increased RNA and protein contents in kidney significantly although there were no differences in food intakes compared to feeding a RC diet. The wet weight of liver, kidney and heart were higher in RU. The wet weights of fecal output of the rats fed RH was greater than in rice control group. The gut transit time was longer in the rats fed RH than in the rice control group significantly. Serum GOT, GPT, total bilirubin concentration were tended to be lower and blood urea nitrogen was significantly lower in RH group. The maturation index of kidney was higher in RU than in RC. These results suggest that physically modified rice starch improved growth performance and physiological functions in organs of growing rats.

Risk Factors for the Progression of Chronic Kidney Disease in Children

  • Ahn, Yo Han;Kang, Hee Gyung;Ha, Il-Soo
    • Childhood Kidney Diseases
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    • v.25 no.1
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    • pp.1-7
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    • 2021
  • Chronic kidney disease (CKD) in children is associated with various complications, including poor growth and development, mineral bone disorder, cardiovascular disease, kidney failure, and mortality. Slowing down the progression of CKD is important since CKD is often not curable. Prospective cohort studies have been conducted to understand the progression and outcomes of CKD in children, and these studies have identified non-modifiable and modifiable risk factors. Recognition of known risk factors and early intervention are important to delay the progression of kidney function decline in children.

Renal Action of Raclopride, a Dopamine $D_2$ Receptor Antagonist, in Dogs (Dopamine $D_2$ Receptor 차단제인 Raclopride의 신장작용)

  • 고석태
    • YAKHAK HOEJI
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    • v.45 no.6
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    • pp.683-693
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    • 2001
  • This study was attempted to investigate the effect of raclopride, a dopamine $D_2$ receptor antagonist, on renal function in dog. Raclopride (70-220$\mu\textrm{g}$/kg), when given intravenously, Produced antidiuresis along with the decrease in free water clearance ( $C_{H_2O}$), urinary excretion of sodium and potassium ( $E_{Na}$ , $E_{K}$), partially decreased osmolar clearance ( $C_{osm}$) and increased reabsorption rates of sodium and potassium in renal tubules ( $R_{Na}$ , $R_{K}$). Raclopride administered into a renal artery did not influence on renal function in small doses (10 and 30$\mu\textrm{g}$/kg), whereas exhibited the decrease of urine volume (Vol) and $C_{H_2O}$ both in experimental and control kidney in much dose (100$\mu\textrm{g}$/kg), at this time, the decreased rates of both Vol. and $C_{H_2O}$) were more prominent in control kidney rather than that elicited in experimental kidney, and then only via was decreased in control kidney but increased in experimental kidney. Raclopride administered via carotid artery (30-200$\mu\textrm{g}$/kg) did not influence at all on renal function. Antidiuretic action induced by raclopride given intravenously was not affected by renal denervation. Raclopride given into carotid artery was little effect on renal function without relation to renal denervation. Above results suggest that raclopride produces antidiuresis by potentiation of antidiuretic hormone (ADH) action in blood without increase of ADH secretion in posterior pituitary gland, it is not related to renal nerve function in dogs.ogs.s.

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Partial versus Radical Nephrectomy for T1-T2 Renal Cell Carcinoma in Patients with Chronic Kidney Disease Stage III: a Multiinstitutional Analysis of Kidney Function and Survival Rate

  • Chung, Jae-Seung;Son, Nak Hoon;Lee, Sang Eun;Hong, Sung Kyu;Jeong, Chang Wook;Kwak, Cheol;Kim, Hyeon Hoe;Hong, Sung Hoo;Kim, Yong June;Kang, Seok Ho;Chung, Jinsoo;Kwon, Tae Gyun;Hwang, Eu Chang;Byun, Seok-Soo
    • Journal of Korean Medical Science
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    • v.33 no.43
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    • pp.277.1-277.10
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    • 2018
  • Background: To examine survival rates and renal function after partial nephrectomy (PN) and radical nephrectomy (RN) in patients with chronic kidney disease (CKD). Methods: We studied 4,332 patients who underwent PN or RN for pathological T1a-T2N0M0 renal cell carcinoma from 1988 to 2014. Patients were divided into two subgroups of CKD stage I-II and stage III. Kidney function, and survival outcomes were compared between groups. Results: We included 1,756 patients with CKD I-II and 276 patients with CKD III in the final pair-matched analysis. Kidney function was significantly better preserved in the PN than in the RN group among all patients. However, the beneficial effect of PN on kidney function gradually disappeared over time in CKD III patients. The 5-year overall survival (OS) rates after PN and RN differed in patients with CKD I-II disease (99.4% vs. 96.5%, respectively, P = 0.015). The 5-year OS rates after surgery were not affected by mode of nephrectomy in CKD III patients (97.8% vs. 93.5%, P = 0.103). The 5-year cancer-specific survival rates did not differ between treatment groups in all CKD stage. Cox hazard analysis showed that the operative method was a significant factor for OS in CKD I-II patients (hazard ratio [HR], 0.320; confidence interval [CI], 0.122-0.840; P = 0.021). However, PN was not beneficial in terms of OS in CKD III patients (HR, 0.395; CI, 0.086-1.172; P = 0.117). Conclusion: PN is associated with a higher OS rate and better kidney function in patients with preoperative CKD stage I and II, but not in those with CKD stage III.

Analysis of Kidney Function States Based on Face Color Observation by Kidney Ear Acupuncture Point Irritation (신장 이혈 상응점 자극에 따른 얼굴 색상 기반의 신장 기능 상태 분석)

  • Kim, Bong-Hyun;Cho, Dong-Uk
    • The Journal of Korean Institute of Communications and Information Sciences
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    • v.35 no.12B
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    • pp.1192-1198
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    • 2010
  • As indicators of life quality have recently shown great improvement, alternative medicine is becoming a mainstream health care pattern, in which early stage medical examinations and treatments are usually preformed before diseases occur. In this context, the ear-acupuncture method is increasingly used these day as one of important alternative medicine treatments. In this paper, we performed an experiment of facial region color analysis with kidney ear acupuncture point irritation. For this, we collected facial image samples before and after kidney ear acupuncture point irritation under the same condition. From the samples, the change rates of K, L values of CMYK color system and Lab color system, respectively, on kidney related facial parts were extracted and analyzed to investigate kidney function improvement.