نتایج جستجو برای: nephron
تعداد نتایج: 4732 فیلتر نتایج به سال:
In early stages of permanent renal injury or extensive ablation, structural and functional adaptations associated with hypertrophy partially compensate for nephron losses. Glomerulotubular balance is maintained in these conditioned nephrons by intrinsic tubule and peritubular capillary adaptations that parallel single nephron glomerular filtration rate (SNGFR). Studies of Na+-H+ exchange in ren...
This review examines studies of intra-operative contrast-enhanced ultrasound (CEUS) and its emerging role and advantages in robotic-assisted nephron-sparing surgery. Contrast-enhanced ultrasound is a technology that combines the use of second-generation contrast agents consisting of microbubbles with existent ultrasound techniques. Until now, this novel technology has aided surgeons with proced...
An effort to examine certain aspects of the adaptation in potassium excretion associated with nephron reduction was made in dogs with unilateral remnant kidneys. A constant intake of potassium was maintained by tube feeding and studies were performed before and after removal of the intact control kidney. The removal of the intact kidney created the need for the remaining nephrons of the remnant...
The extent to which a reduced nephron endowment contributes to hypertension and renal disease is confounded in models created by intrauterine insults that also demonstrate other phenotypes. Furthermore, recent data suggest that a reduced nephron endowment provides the "first hit" and simply increases the susceptibility to injurious stimuli. Thus we examined nephron number, glomerular volume, co...
Casarini, D. E., M. A. Boim, R. C. R. Stella, and N. Schor. Endopeptidases (kininases) are able to hydrolyze kinins in tubular fluid along the rat nephron. Am. J. Physiol. 276 (Renal Physiol. 45): F66–F74, 1999.—The activities of serine endopeptidase, prolyl endopeptidase and neutral endopeptidase were determined in tubular fluid collected from several portions of the rat nephron as well as in ...
BACKGROUND The nephron number is thought to be associated with the outcome of chronic kidney disease (CKD). If the nephron number can be estimated in the clinical setting, it could become a strong tool to predict renal outcome. This study was designed to estimate the nephron number in CKD patients and to establish a method to predict the outcome by using the estimated nephron number. METHODS/...
The indications for nephron-sparing surgery and for minimally invasive surgery are continually expanding. Nephron-sparing surgery, also known as partial nephrectomy, presents a challenge to the minimally invasive surgeon. Herein, we describe our technique of robot-assisted laparoscopic partial nephrectomy. This approach may have potential advantages of including easier excision and suturing. Mo...
Diabetes mellitus is a metabolic disease that occurs due to impaired insulin secretion caused by progressive damage beta cells. Pineapple skin vinegar contained acetic acid and antioxidants which have the potential help repaired structure of nephron ren other organs affected diabetes. The purpose this study was examined effectiveness pineapple on improved histological diabetic rats ( Rattus nor...
PURPOSE Elective nephron sparing surgery is established as an alternative to radical nephrectomy for renal cell carcinoma if tumors are small (4 cm or less, stage T1a). We compared outcomes in patients with renal cell carcinoma 4 cm or less (small) vs more than 4 cm (large) who were treated with nephron sparing surgery. MATERIALS AND METHODS Between 1979 and 2006, 618 patients underwent elect...
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