Effect of Vinegar Consumption on 24-hour Urinary Risk Factors Associated With Stone Formation
NCT ID: NCT02649140
Last Updated: 2016-01-07
Study Results
The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.
Basic Information
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UNKNOWN
NA
50 participants
INTERVENTIONAL
2015-12-31
2016-03-31
Brief Summary
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The aim of this present study is to investigate the effect of vinegar consumption on 24-hour urinary risk factors associated with calcium oxalate urinary stone formation and blood biochemical parameters.
Methods:
The investigators will recruit 50 healthy young student volunteers in this study. By simple random sampling technique, volunteers will be allocated to two groups (group 1, control group; group 2, vinegar group).Each participant in vinegar group drink 15ml vinegar ( Ninghuafu, Sanxi, China) at noon and evening respectively for a period of four weeks.The end point of this study is comparison the outcomes of 24-hour urine and blood biochemical parameters between different group and point-in-time.
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Detailed Description
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The written history of vinegar use in China was more than 5,000 years,and it was used as health care products since ancient times. In addition of the main component of acetic acid, it also contains other acids, esters, polyphenols and other active substances.Previous studies have reported some effects of vinegar, such as delays gastric emptying,relieves fatigue, regulates blood glucose and lipid metabolism, antioxidant, reduces blood pressure and so on. The China national epidemiological study of urolithiasis which was conducted from May 2013 through July 2014 indicated that vinegar may be protective against the formation of urolithiasis (has not been published). Animal experiments showed that vinegar could inhibit oxalate calcium crystal formation in rat kidneys (has not been published). Consequently, we performed this randomized controlled trial to investigate the effect of vinegar consumption on 24-hour urinary risk factors associated with calcium oxalate urinary stone formation and blood biochemical parameters.
Methods:
Study design and participants: We will recruit 50 healthy young student volunteers in this study. The inclusion criteria are male who age 18-35 years, and those with normal renal function,without urolithiasis and congenital urinary tract abnormalities. The exclusion criteria include hematuria, urinary tract infection and have a history of kidney or urinary diversion. We exclude male older than 35 years because usually they have to work and not easy to collect 24-hour sample. The reason of excluding female is that the trail will last four weeks and women's menstrual cycle could affect 24-hour urine collection.
Randomisation:
Trained research clinicians enroll volunteers in a university nearby our hospital. Volunteers will be allocated in a 1:1 ratio to control group(group 1) or vinegar group(group 2) by simple random sampling technique, which is conducted by clinical trial office in urology department of our hospital in Guangzhou, China.
Procedures: Each participant in vinegar group drink 15ml vinegar ( Ninghuafu, Sanxi, China) after dinner at noon and evening respectively for a period of four weeks,and participants in control group do not need intervention.All of participants drink vinegar under the surveillance of research clinicians.
Data collection:
Baseline data will be collected before randomization in our hospital. The baseline data protocol includes urinary ultrasonography, spot urine examines, 24-hour urine analysis and blood chemical examines. The parameters of 24-hour urine analysis include Ph, volume, creatinine, oxalate, citrate, phosphate, uric acid, calcium, magnesium, sodium and chloride. The standard blood analysis protocol included routine haematology, fasting serum glucose, creatinine, urea, uric acid, high-density lipoprotein, low-density lipoprotein, triglycerides, alanine transaminase(ALT), total protein(TP), albumin, glutamyltransferase (GGT) , serum total bile acid, cholesterol, sodium, potassium, calcium and chloride ions. Another tube of blood samples are freeze in -80 degree refrigerator for further analysis of oxidation of blood protein product(AOPP), malondialdehyde(MDA), glutathion peroxidase(GSH-PX), superoxide dismutase(SOD) and catalase activity(CAT).
Follow-up data include 24-hour urine analysis on the 7th, 14th, 21th and 28th day during this period and blood biochemical examines on the 29th day. The protocol of 24-hour urine and blood chemical examines is the same with baseline data. And participants will be asked to make a record of meals for seven days.The ANOVA for repeated measures is used to perform the data analysis.
Conditions
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Study Design
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RANDOMIZED
PARALLEL
NONE
Study Groups
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Group 1
Group1 is control group and participants do not need intervention.
No interventions assigned to this group
Group 2
Group 2 is vinegar Group and participants in this group are asked to drink 15ml vinegar(Ninghuafu, Sanxi, China)after dinner at noon and evening respectively for a period of four weeks.
Vinegar group
Each participant in vinegar group drink 15ml vinegar(Ninghuafu,Sanxi,China)after dinner at noon and evening respectively for a period of four weeks.
Interventions
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Vinegar group
Each participant in vinegar group drink 15ml vinegar(Ninghuafu,Sanxi,China)after dinner at noon and evening respectively for a period of four weeks.
Eligibility Criteria
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Inclusion Criteria
* Those without urolithiasis
* Those without congenital urinary tract abnormalities.
Exclusion Criteria
* Those with urinary tract infection
* Those have a history of kidney or urinary diversion.
18 Years
35 Years
MALE
Yes
Sponsors
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The First Affiliated Hospital of Guangzhou Medical University
OTHER
Responsible Party
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Guohua Zeng
Vice President of the Hospital
Principal Investigators
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Guohua Zeng, PH.D and M.D
Role: STUDY_CHAIR
The First Affiliated Hospital of Guangzhou Medical University
Locations
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Department of Urology, Minimally Invasive Surgery Center, The First Affiliated Hospital of Guangzhou Medical University
Guangzhou, Guangdong, China
Countries
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Central Contacts
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Facility Contacts
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References
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Hlebowicz J, Darwiche G, Bjorgell O, Almer LO. Effect of apple cider vinegar on delayed gastric emptying in patients with type 1 diabetes mellitus: a pilot study. BMC Gastroenterol. 2007 Dec 20;7:46. doi: 10.1186/1471-230X-7-46.
Mitrou P, Raptis AE, Lambadiari V, Boutati E, Petsiou E, Spanoudi F, Papakonstantinou E, Maratou E, Economopoulos T, Dimitriadis G, Raptis SA. Vinegar decreases postprandial hyperglycemia in patients with type 1 diabetes. Diabetes Care. 2010 Feb;33(2):e27. doi: 10.2337/dc09-1354. No abstract available.
Setorki M, Asgary S, Eidi A, Rohani AH, Khazaei M. Acute effects of vinegar intake on some biochemical risk factors of atherosclerosis in hypercholesterolemic rabbits. Lipids Health Dis. 2010 Jan 28;9:10. doi: 10.1186/1476-511X-9-10.
Nishidai S, Nakamura Y, Torikai K, Yamamoto M, Ishihara N, Mori H, Ohigashi H. Kurosu, a traditional vinegar produced from unpolished rice, suppresses lipid peroxidation in vitro and in mouse skin. Biosci Biotechnol Biochem. 2000 Sep;64(9):1909-14. doi: 10.1271/bbb.64.1909.
Kondo S, Tayama K, Tsukamoto Y, Ikeda K, Yamori Y. Antihypertensive effects of acetic acid and vinegar on spontaneously hypertensive rats. Biosci Biotechnol Biochem. 2001 Dec;65(12):2690-4. doi: 10.1271/bbb.65.2690.
Johnston CS, Steplewska I, Long CA, Harris LN, Ryals RH. Examination of the antiglycemic properties of vinegar in healthy adults. Ann Nutr Metab. 2010;56(1):74-9. doi: 10.1159/000272133.
Mitrou P, Petsiou E, Papakonstantinou E, Maratou E, Lambadiari V, Dimitriadis P, Spanoudi F, Raptis SA, Dimitriadis G. Vinegar Consumption Increases Insulin-Stimulated Glucose Uptake by the Forearm Muscle in Humans with Type 2 Diabetes. J Diabetes Res. 2015;2015:175204. doi: 10.1155/2015/175204. Epub 2015 May 6.
Other Identifiers
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MRER(52)2015
Identifier Type: -
Identifier Source: org_study_id
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