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Screening and Identification of Human Urate Transporter hURAT1 MicroRNA

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT01973088
Recruitment Status : Unknown
Verified September 2013 by Qian-wei Li, Southwest Hospital, China.
Recruitment status was:  Active, not recruiting
First Posted : October 31, 2013
Last Update Posted : December 10, 2013
Information provided by (Responsible Party):
Qian-wei Li, Southwest Hospital, China

Brief Summary:
This study intends to use in patients with renal tissue and blood samples, screening and identification of renal tissue hURAT1 regulating the expression of micro-RNA, for further study of uric acid stone formation mechanism and the occurrence of clinical preventive uric acid stones provide new clues and new intervention targets.

Condition or disease
Urinary Calculi

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Study Type : Observational
Estimated Enrollment : 80 participants
Observational Model: Cohort
Time Perspective: Prospective
Study Start Date : November 2013
Estimated Primary Completion Date : June 2015

non-urate calculus
urate calculus

Primary Outcome Measures :
  1. micro-RNA [ Time Frame: 6 months ]
    microRNA microarray:the micro-RNA of kidney tissue

Secondary Outcome Measures :
  1. Urine [ Time Frame: 24 hours ]
    Urine Analyzer:Urine color, transparency, pH, erythrocytes, leukocytes, epithelial cells, casts, protein, specific gravity, and qualitative urine

  2. 24h urine quantitative analysis [ Time Frame: 96 hours ]
    Urine Analyzer:Urine, sodium, potassium, calcium, magnesium, ammonium, phosphate, sulfate, uric acid, oxalate, citrate, creatinine

  3. Blood biochemistry [ Time Frame: 24 hours ]
    Blood biochemical analyzer:Sodium, potassium, chloride, calcium, phosphorus, magnesium, bicarbonate, uric acid, creatinine

  4. Stone analysis [ Time Frame: 3 weeks ]
    Infrared Spectroscopy:Calcium oxalate monohydrate , carbonated apatite, calcium oxalate dihydrate ,anhydrous uric acid, urine ammonium,magnesium ammonium phosphate

  5. hURAT1 transporter protein [ Time Frame: 6 months ]
    WESTERN BLOT、RT-qPCR:hURAT1 transporter protein of kidney tissue

Information from the National Library of Medicine

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Ages Eligible for Study:   18 Years to 65 Years   (Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Sampling Method:   Probability Sample
Study Population
Experiment are divided into uric acid stones group (A), non-uric acid stones group (B), control group (C), A, C recruited 30 patients each group, B group recruited 20 patients.

Inclusion Criteria:

A、B group were enrolled standards: ① aged 18-65 years old; ② comply with percutaneous nephrolithotomy lithotripsy indications for surgery; ③ ECT tips ipsilateral normal or mildly impaired renal function.

Group C patients were enrolled standards: ① aged 18-65 years old; ② normal renal function, not associated with urinary calculi in patients; ③ cancer patients met radical nephrectomy indications for surgery; ④ emergency trauma patients suffering from kidney resection surgical indications.

Exclusion Criteria:

  • aged <18 years or> 65 years; ② neurological disease or cognitive dysfunction; ③ can not be corrected or uncorrected coagulopathy; ④ associated with diabetes, hypertension and other metabolic diseases; ⑤ accompanied by tuberculosis, hepatitis, HIV and other infectious diseases; ⑥ poor tolerance to anesthesia and surgery, such as: severe cardiopulmonary disease, coagulation disorders, etc.; ⑦ ultrasound, renal imaging examination revealed renal cortex was significantly thinner (renal cortical thickness <1.5cm), structural variation; ⑧ with severe systemic or urinary tract infection; ⑨ ECT tips ipsilateral renal function is severely impaired or solitary kidney.
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Responsible Party: Qian-wei Li, Southwest Hospital, China Identifier: NCT01973088    
Other Study ID Numbers: Southwest Hospital,TMMU
First Posted: October 31, 2013    Key Record Dates
Last Update Posted: December 10, 2013
Last Verified: September 2013
Additional relevant MeSH terms:
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Urinary Calculi
Pathological Conditions, Anatomical
Urologic Diseases