Evidence map›Paper›PMID 42688048›Full record

ArticleFrontiers in physiology2026

Serum calcium-magnesium-phosphate-potassium metabolic dysregulation in nephrolithiasis: predictive model development and mechanistic insights.

Yunhan Wang, Caitao Dong, Wenbiao Liao, Sixing Yang

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Article in Frontiers in physiology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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4 · The record

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5 · Who and what money

Authors and funding

4 authors.

Yunhan WangDepartment of Urology, Renmin Hospital of Wuhan University, Wuhan, Hubei, China.
Caitao DongDepartment of Urology, Renmin Hospital of Wuhan University, Wuhan, Hubei, China.
Wenbiao LiaoDepartment of Urology, Renmin Hospital of Wuhan University, Wuhan, Hubei, China.
Sixing YangDepartment of Urology, Renmin Hospital of Wuhan University, Wuhan, Hubei, China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Purpose: To explore the pathophysiological interplay of serum calcium, magnesium, phosphate, and potassium (Ca, Mg, P, K) homeostasis in nephrolithiasis and establish an integrated risk prediction framework incorporating these routine homeostatic biomarkers. Methods: This retrospective, hospital-based case-control study enrolled 611 patients with radiologically confirmed nephrolithiasis and 624 strict gender-matched controls to eliminate sex-related baseline biases. Fasting morning serum biochemical data were analyzed. Multivariable logistic regression identified core risk determinants. Model performance was rigorously validated through receiver operating characteristic (ROC) analysis, calibration curves, and decision curve analysis (DCA), followed by the construction of a diagnostic nomogram. Results: The predictive model based on electrolyte indices demonstrated exceptional discriminative capacity (AUC = 0.812, 95% CI: 0.789-0.836) and high calibration accuracy (Brier score = 0.177, Hosmer-Lemeshow p = 0.852). Key independent predictors included an elevated serum calcium magnesium ratio (Ca/Mg, aOR = 5.50), increased calcium phosphate product (Ca×IP, aOR = 1.82), hypokalemia (aOR = 0.13), BMI ≥ 24, and reduced hemoglobin levels. DCA confirmed the model's net clinical benefit across a wide range of threshold probabilities. Conclusion: Dysregulation of serum Ca, Mg, P, K homeostasis is strongly associated with nephrolithiasis. Our nomogram may offer a complementary, blood-based initial assessment when 24-hour urine testing is not feasible, pending further validation.

Indexed as

calcium magnesium ratiocalcium phosphate producthypokalemiamultivariable predictive modelnephrolithiasis

Identifiers

PMID42688048
PMCPMC13533732

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.