scholarly journals Mediterranean diet adherence and risk of incident kidney stones

2020 ◽  
Author(s):  
Adrian Rodriguez ◽  
Gary C Curhan ◽  
Giovanni Gambaro ◽  
Eric N Taylor ◽  
Pietro Manuel Ferraro
Keyword(s):  
Uric Acid ◽  
Mediterranean Diet ◽  
Kidney Stones ◽  
Kidney Stone ◽  
Stone Formation ◽  
Health Study ◽  
P Value ◽  
Linear Regression Models ◽  
Kidney Stone Formation

ABSTRACT Background Diet plays an important role in kidney stone formation. Several individual components have been associated with the risk of kidney stone formation, but there is limited evidence regarding the role of healthful dietary patterns. Objective To prospectively study the association between adherence to the Mediterranean diet and the risk of incident kidney stones. Methods We conducted a longitudinal study using 3 different cohorts: the Health Professionals Follow-up Study (n = 42,902 men), the Nurses’ Health Study I (n = 59,994 women), and the Nurses’ Health Study II (n = 90,631 women). We assessed diet every 4 y using an FFQ and calculated adherence to a Mediterranean diet using the alternate Mediterranean diet score (aMED). A subgroup of 6077 participants provided ≥1 24-h urine sample, and urinary solute excretion was analyzed. We used Cox proportional hazards regression to examine the independent association between the aMED and incidence of kidney stones, adjusting for potential confounders. We used adjusted linear regression models to study the relation between aMED and urine composition. Results During 3,316,633 person-years of follow-up, 6576 cases of incident kidney stones were identified. For participants in the highest aMED score category, the risk of developing a kidney stone was between 13% and 41% lower compared with participants in the lowest score (pooled HR: 0.72, 95% CI: 0.59, 0.87; P value for trend <0.001). A higher aMED score was associated with higher urinary citrate, magnesium, oxalate, phosphate, uric acid, volume, and pH, and lower urinary sodium, resulting in lower supersaturation for calcium oxalate, calcium phosphate, and uric acid. Conclusion Adherence to a Mediterranean diet is associated with a lower risk of developing a kidney stone.

scholarly journals Family history and risk of kidney stones.

1997 ◽  
Vol 8 (10) ◽  
pp. 1568-1573
Author(s):  
G C Curhan ◽  
W C Willett ◽  
E B Rimm ◽  
M J Stampfer
Keyword(s):  
Family History ◽  
Kidney Stones ◽  
Kidney Stone ◽  
Stone Formation ◽  
Dietary Calcium ◽  
Dietary Calcium Intake ◽  
History Of ◽  
Kidney Stone Formation ◽  
Risk Of Stone Formation

Kidney stones develop more frequently in individuals with a family history of kidney stones than in those without a family history; however, little information is available regarding whether the increased risk is attributable to genetic factors, environmental exposures, or some combination. In this report, the relation between family history and risk of kidney stone formation was studied in a cohort of 37,999 male participants in the Health Professionals Follow-up Study. Information on family history, kidney stone formation, and other exposures of interest, including dietary intake, was obtained by mailed questionnaires. A family history of kidney stones was much more common in men with a personal history of stones at baseline in 1986 than in those without a history of stones (age-adjusted prevalence odds ratio, 3.16; 95% confidence interval [CI], 2.90 to 3.45). During 8 yr of follow-up, 795 incident cases of stones were documented. After adjusting for a variety of risk factors, the relative risk of incident stone formation in men with a positive family history, compared with those without, was 2.57 (95% CI, 2.19 to 3.02). Family history did not modify the inverse association between dietary calcium intake and the risk of stone formation. These results suggest that a family history of kidney stones substantially increases the risk of stone formation. In addition, these data suggest that dietary calcium restriction may increase the risk of stone formation, even among individuals with a family history of kidney stones.

Cross-talk between renal lithogenesis and atherosclerosis: an unveiled link between kidney stone formation and cardiovascular diseases

2018 ◽  
Vol 132 (6) ◽  
pp. 615-626 ◽  
Author(s):  
Asokan Devarajan
Keyword(s):  
Risk Factors ◽  
Uric Acid ◽  
Cardiovascular Diseases ◽  
Kidney Stone ◽  
Arterial Wall ◽  
Stone Formation ◽  
Crystal Nucleation ◽  
Cvd Risk Factors ◽  
Cvd Risk ◽  
Kidney Stone Formation

The prevalence of kidney stones and cardiovascular diseases (CVDs) are increasing throughout the world. Both diseases are chronic and characterized by accumulation of oxidized proteins and lipids in the renal tissue and arterial wall, respectively. Emerging studies have revealed a positive association between nephrolithiasis and CVDs. Based on preclinical and clinical evidences, this review discusses: (i) stone forming risk factors, crystal nucleation, aggregation, injury-induced crystal retention, and stone formation, (ii) CVD risk factors such as dyslipidemia, perturbation of gut microbiome, obesity, free radical-induced lipoprotein oxidation, and retention in the arterial wall, subsequent foam cell formation, and atherosclerosis, (iii) mechanism by which stone forming risk factors such as oxalate, calcium, uric acid, and infection contribute toward CVDs, and (iv) how CVD risk factors, such as cholesterol, phospholipids, and uric acid, contribute to kidney stone formation are described.

scholarly journals Temporal Effects of Quercetin on Tight Junction Barrier Properties and Claudin Expression and Localization in MDCK II Cells

2019 ◽  
Vol 20 (19) ◽  
pp. 4889 ◽  
Author(s):  
Gamero-Estevez ◽  
Andonian ◽  
Jean-Claude ◽  
Gupta ◽  
Ryan
Keyword(s):  
Tight Junction ◽  
Kidney Stones ◽  
Kidney Stone ◽  
Stone Formation ◽  
Barrier Properties ◽  
Tight Junction Proteins ◽  
Sodium Calcium ◽  
Flavonoid Quercetin ◽  
Kidney Stone Formation ◽  
Junction Proteins

: Kidney stones affect 10% of the population. Yet, there is relatively little known about how they form or how to prevent and treat them. The claudin family of tight junction proteins has been linked to the formation of kidney stones. The flavonoid quercetin has been shown to prevent kidney stone formation and to modify claudin expression in different models. Here we investigate the effect of quercetin on claudin expression and localization in MDCK II cells, a cation-selective cell line, derived from the proximal tubule. For this study, we focused our analyses on claudin family members that confer different tight junction properties: barrier-sealing (Cldn1, -3, and -7), cation-selective (Cldn2) or anion-selective (Cldn4). Our data revealed that quercetin’s effects on the expression and localization of different claudins over time corresponded with changes in transepithelial resistance, which was measured continuously throughout the treatment. In addition, these effects appear to be independent of PI3K/AKT signaling, one of the pathways that is known to act downstream of quercetin. In conclusion, our data suggest that quercetin’s effects on claudins result in a tighter epithelial barrier, which may reduce the reabsorption of sodium, calcium and water, thereby preventing the formation of a kidney stone.

Demographic Study of Water Hardness with Potential to Predict Formation of Renal Crystals

2012 ◽  
Vol 584 ◽  
pp. 504-508 ◽  
Author(s):  
Deeptiman Chatterjee ◽  
Vishaka Verma ◽  
Amiti ◽  
Sheija Rohil ◽  
Narayanasamy Arunai Nambi Raj ◽  
...  
Keyword(s):  
Kidney Stones ◽  
Kidney Stone ◽  
Stone Formation ◽  
Water Hardness ◽  
Renal Calculi ◽  
Developing Nations ◽  
Preventive Strategy ◽  
Drinking Purposes ◽  
Demographic Study ◽  
Kidney Stone Formation

Kidney stones or renal calculi or Nephrolithiasis is a common health problem in both developed and developing nations [1,2]. Analysis of the chemical and physical properties of renal calculi helps in preventing their formation and treatment. In this study, we evaluated the hardness of water used for drinking purposes, in an attempt to correlate water hardness with an increased incidence of stone formation. Identifying risk factors help to develop a preventive strategy to reduce the risk of renal calculi formation. The incidence of kidney stone formation in Vellore district was correlated with the hardness of water samples taken from different areas in Vellore. The study can be employed at a larger demographic level for effective and economic monitoring of the risk of kidney stone formation.

scholarly journals Body size and risk of kidney stones.

1998 ◽  
Vol 9 (9) ◽  
pp. 1645-1652
Author(s):  
G C Curhan ◽  
W C Willett ◽  
E B Rimm ◽  
F E Speizer ◽  
M J Stampfer
Keyword(s):  
Body Mass Index ◽  
Body Size ◽  
Calcium Oxalate ◽  
Body Mass ◽  
Kidney Stones ◽  
Stone Formation ◽  
Stone Disease ◽  
Kidney Stone Formation ◽  
Risk Of Stone Formation

A variety of factors influence the formation of calcium oxalate kidney stones, including gender, diet, and urinary excretion of calcium, oxalate, and uric acid. Several of these factors may be related to body size. Because men on average have a larger body size and a threefold higher lifetime risk of stone formation than women, body size may be an important risk factor for calcium oxalate stone formation. The association between body size (height, weight, and body mass index) and the risk of kidney stone formation was studied in two large cohorts: the Nurses' Health Study (NHS; n = 89,376 women) and the Health Professionals Follow-up Study (HPFS; n = 51,529 men). Information on body size, kidney stone formation, and other exposures of interest was obtained by mailed questionnaires. A total of 1078 incident cases of kidney stones in NHS during 14 yr of follow-up and a total of 956 cases in HPFS during 8 yr of follow-up were confirmed. In both cohorts, the prevalence of a stone disease history and the incidence of stone disease were directly associated with weight and body mass index. However, the magnitude of the associations was consistently greater among women. Specifically, the age-adjusted prevalence odds ratio for women with body mass index > or = 32 kg/m2 compared with 21 to 22.9 kg/m2 was 1.76 (95% confidence interval, 1.50 to 2.07), but 1.38 (95% confidence interval, 1.16 to 1.65) for the same comparison in men. For incident stone formation, the multivariate relative risks for the similar comparisons were 1.89 (1.51 to 2.36) for women and 1.19 (0.83 to 1.70) in men. Height was inversely associated with the prevalence of stone disease but was not associated with incident stone formation. These results suggest that body size is associated with the risk of stone formation and that the magnitude of risk varies by gender. Additional studies are necessary to determine whether a reduction in body weight decreases the risk of stone formation, particularly in women.

scholarly journals Effect of Drinking Water Hardness on Kidney Stones Formation in Ranya District

2020 ◽  
Vol 4 (1) ◽  
pp. 1-6
Author(s):  
Akram O. Esmail ◽  
Bahast A. Qadir ◽  
Hawnaz Q. Hamad
Keyword(s):  
Drinking Water ◽  
Kidney Stones ◽  
Kidney Stone ◽  
Kidney Diseases ◽  
Stone Formation ◽  
Risk Index ◽  
Water Hardness ◽  
Magnesium Content ◽  
Chi Square ◽  
Kidney Stone Formation

This study was conducted in Rania District, Raparin University, during September 2018–March 2019, to test the relation between water hardness and kidney stone formation. The investigation depended on questionnaire form which was distributed on 100 person in Raparin (Rania, Hajiawa, and Chwarqurna) and patients whom vested the Rania clinical during December 1, 2018–January 22, 2019 which were 238 patients and only 20 of them had kidney stones developing which represent 8.4% of the total kidney diseases. The results indicated to significant effect of gender at level of significant 5% on kidney stones formation, 10% of male, and 18% of female having kidney stones. The results of Chi-square test indicated to highly significant effect of age on kidney stone formation at level of significant (0.001). The kidney stone formation increased from 19.23% to 75% with an increase in age class from (14–34) to (54 or more) year. The negative correlation coefficient value of (r = −0.63*) was recorded between water hardness and stone risk index due to the high magnesium content of drinking water in the studied area.

scholarly journals P0175DETERMINANTS OF RENAL PAPILLARY APPEARANCE IN RENAL STONE FORMERS: AN IN-DEPTH EXAMINATION

2020 ◽  
Vol 35 (Supplement_3) ◽  
Author(s):  
Matteo Bargagli ◽  
Rossella De Leonardis ◽  
Mauro Ragonese ◽  
Angelo Totaro ◽  
Francesco Pinto ◽  
...  
Keyword(s):  
Kidney Stones ◽  
Kidney Stone ◽  
Medical Condition ◽  
Stone Formation ◽  
Blood Parameters ◽  
Stone Disease ◽  
Stone Composition ◽  
Stone Recurrence ◽  
Stone Formers

Abstract Background and Aims Nephrolithiasis is a medical condition characterized by high prevalence among the general population both in Europe and in the U.S. and it is responsible for high costs reaching up to $10 billion per year. It is associated with specific comorbidities such as obesity, arterial hypertension, diabetes mellitus, metabolic syndrome and chronic kidney disease. Kidney stones development is believed to start either from Randall’s plaques or from stone plugs. Both these lesions can be seen on renal papillary surfaces, but what promotes the formation of plaques and plugs is not entirely understood. The aim of this study is to investigate the association between the urinary metabolic milieu and a published endoscopic papillary evaluation score (PPLA). We also evaluated the correlation of PPLA score with kidney stone recurrence during follow-up. Method We prospectively enrolled 31 stone forming patients who undergone retrograde intrarenal surgery procedures. Visual inspection of the accessible renal papillae was performed in order to calculate the PPLA score based on the appearance of ductal plugging, surface pitting, loss of papillary contour and Randall’s plaque extension. Demographic information, blood samples, 24h urine collections and kidney stone events during follow-up were collected. Stone composition was analyzed using infrared-spectroscopy. Relative urinary supersaturations (RSS) for calcium oxalate (CaOx), calcium phosphate (CaPi) and uric acid (UA) were calculated using the Equil2 software. PPLA score > 3 was defined as high. Results Median follow-up period was 11 (min/max 5, 34) months. PPLA score was inversely correlated with BMI (rho = −0.39, p = 0.035) and history of recurrent kidney stones (median PPLA 5.0 vs 2.5, p = 0.029), these results were confirmed when PPLA was considered as a categorical variable (median BMI 27 vs 24, recurrent stone disease 12 vs 62%, p= 0.006). Furthermore, high PPLA score was associated with lower odds of new kidney stone events during follow-up (OR 0.154, 95% confidence interval 0.024, 0.998, p = 0.05). No significant correlations were found between PPLA score, stone composition, blood parameters, 24h urine solute excretions and RSS for CaOx, CaPi and UA. Conclusion Different papillary abnormalities seem to be linked to specific mechanisms of stone formation. Although data regarding PPLA score are inconsistent, it may be a valid asset for both medical and surgical management of nephrolithiasis. Larger, long-term prospective clinical studies need to be conducted to assess the validity of PPLA score system in evaluating risk of stone recurrence.

Follow-Up of Drug Therapy Efficacy to Prevent Recurrence of Calcium Oxalate Kidney Stone Formation

1983 ◽  
Vol 129 (6) ◽  
pp. 1258-1261 ◽  
Author(s):  
Sara Sarig ◽  
Nissim Garti ◽  
Reuven Azoury ◽  
Saul Perlberg ◽  
Yohanan Wax
Keyword(s):  
Drug Therapy ◽  
Calcium Oxalate ◽  
Kidney Stone ◽  
Stone Formation ◽  
Therapy Efficacy ◽  
Kidney Stone Formation

scholarly journals AKTIVITAS PENGHAMBATAN PEMBENTUKAN BATU GINJAL (Antinefrolithiasis) EKSTRAK ETANOL DAUN GEDI MERAH (Abelmoschus moschtus Medik) PADA TIKUS PUTIH JANTAN

2016 ◽  
Vol 2 (1) ◽  
pp. 31-37
Author(s):  
Triana Riandani Djamhuri ◽  
Yuliet Yuliet ◽  
Khildah Khaerati
Keyword(s):  
Normal Control ◽  
Kidney Stones ◽  
Inhibitory Activity ◽  
Kidney Stone ◽  
Stone Formation ◽  
Calculated Data ◽  
Ethanol Extract ◽  
Negative Control ◽  
Male Rats ◽  
Kidney Stone Formation

Red Gedi (Abelmoschus moschatus Medik) is a plant found only in tropical climate areas such as Africa and Asia. Some people’s experience in Manado stated that red gedi plants can be used to treat various types of disease, one of them was kidney stones. Therefore, this study aimed to determine the activity and the effective dose of red gedi leaf extract as an inhibitor of kidney stone formation. The extract was prepared by maceration using ethanol 96%. Inhibitory activity test of kidney stone formation was done by firstly dividing the labrats into 6 groups. Each group consisted of 3 male rats. Both the first group (Normal control) and the second group (Negative control) weregiven Na.CMC 0.5%; the third group (Positive control) was given Batugin Elixir at a dose of 2.7 ml/kgBW; while the fourth, fifth, and sixth were respectively given red gedileaf extract at doses of 50, 100, and 150 mg/kgBW. After 2 hours, all treatment groups were induced with0.75% of ethylene glycol and 2% of ammonium chloride except for the normal control. Ratio of kidney weight and the level of calcium were then measured and calculated. Data obtained were statistically analyzed using ANOVA (Analysis Of variance) and continued with LSD (Least Significantly Difference). It can be concluded that ethanol extract of red gedileaves had inhibitory activity of kidney stones formation in all dose variation and the most effective one was at a dose of 150 mg/kgBW

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