Idiopathic uric acid nephrolithiasis is characterized by elevated urinary net acid excretion and insufficient buffering by ammonium, resulting in excessively acidic urine and titration of the relatively soluble urate anion to insoluble uric acid. Patients with type 2 diabetes have similar changes in urinary pH, net acid excretion, and ammonium in 24-h urine collections at baseline, even after c...

BACKGROUND Elevated urinary angiotensinogen (UA) was identified as novel prognostic biomarker capable of predicting chronic kidney disease, and in the present study, we will investigate the diagnostic value of UA in the patients of nephrolithiasis. METHODS Urine angiotensinogen levels and α 1-microglobulin were measured by enzyme-linked immunosorbent assay (ELISA) in 60 patients presenting wi...

Background Nephrocalcinosis (NC) refers to diffuse, fine, renal parenchymal calcification, as assessed by radiology or ultrasonography. In medullary NC, the calcification tends to occur in the area of the renal pyramids. It is typically associated with elevated urinary calcium, phosphate, and oxalate, or it can occur with alkaline urine. Any disorder that can lead to hypercalcemia or hypercalci...

Nephrolithiasis is a common entity encountered in general population. Nephrolithiasis refers to formation and impaction of stones in renal pelvis and calyces. Long standing stones cause irritation, chronic inflammation and may cause ‘metaplasia’ of lining epithelium. The metaplasia is commonly of squamous and glandular epithelium. Metaplastic epithelium may further undergo dysplasia and result ...

Primary hyperparathyroidism (PHPT) is a disease involving a broad range of alterations of calcium homeostasis, sustained by parathyroid hormone (PTH) levels that are clearly abnormal. The anomalies directly associated with hyperparathyroidism are nephrolithiasis and fibrocystic bone disease. Since PHPT resolves when abnormal parathyroid tissue is removed, surgery is clearly the only definitive ...

Uric acid stone is the most comment radiolucent renal stone with high recurrence rate, which would further cause acute upper urinary tract obstruction and kidney failure. Here we report two cases of renal uric acid stone from December 2012 to April 2013. One 43-year-old male patient suffered from chronic uric acid nephrolithiasis caused by the long-term indwelling of bilateral double-J stent. A...

Renal stone formation (nephrolithiasis) is a worldwide problem causing substantial morbidity and economic burden. The heritability of stone formation has long been recognized, and with the advent of the genomic era, we have the potential to define the underlying genetic defects. Renal stone formation is multifactorial, with environmental factors interacting with underlying genetic factors. Isol...

Nephrolithiasis is one of the most common diseases in the Western world. The disease manifests itself with intensive pain, sporadic infections, and, sometimes, renal failure. The symptoms are due to the appearance of urinary stones (calculi) which are formed mainly by calcium salts. These calcium salts precipitate in the renal papillae and/or within the collecting ducts. Inherited forms of neph...

Nephrolithiasis is a multifactorial disease caused by environmental, hormonal, and genetic factors. Genetic polymorphisms of ORAI1, which codes for the main subunit of the store-operated calcium (SOC) channel, were reported to be associated with the risk and recurrence of calcium nephrolithiasis. Inositol 1,4,5-trisphosphate (IP3) 3-kinase C (ITPKC) is a negative regulator of the SOC channel-me...

UNLABELLED Calcium oxalate nephrolithiasis is the most common urological disease, but noninvasive and convenient methods of diagnosis are rarely available. OBJECTIVE The present study aimed to identify potential urine biomarkers for noninvasive diagnosis of CaOx nephrolithiasis. METHODOLOGY Urine samples from 72 patients with CaOx nephrolithiasis and 30 healthy controls were collected and p...