Objectives: Recurrent Kidney stone formation is a main medical problem imposing a significant burden on both healthcare and the economy worldwide. Environmental and genetic factors have been linked to a bigger risk of kidney stone formation. We aim to assess the role of methylation on recurrent stone formation in three target genes.
Methods: We aimed to check the association between promoter hypermethylation vitamin D receptor (VDR), calcium-sensing receptor (CaSR), and claudin 14 (CLDN14) genes in recurrent kidney stones. We enrolled 30 consecutive recurrent kidney stone formers (age 18-60 years) (cases) and 30 age and gender-matched controls.3. To identify promoter methylation, two target regions from each candidate gene were bisulfited after blood collection and DNA extraction. Methylation quantification was done through methylation-specific high resolution melting (MS-HRM).
Results: The mean age of the patients and controls (mean ± SD) was 49.58 ± 14.23 years and BMI 36.12 ± 2.72. The methylation status in all six target regions was meaningfully different between the stone-former group and controls when methylation was considered in three clusters of unmethylated, methylated, and hypermethylated. A higher effect in VDR and CLDN was observed compare to CasR (p-value < 0.001, and < 0.005 versus p-value < 0.256).
Conclusions: Methylation as an important epigenetic mechanism should be considered more in recurrent stone formations. Promoter hypermethylation of VRD and CLDN genes may have an essential role in recurrent kidney stones formations.
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http://dx.doi.org/10.1186/s12920-022-01265-1 | DOI Listing |
Annu Rev Pharmacol Toxicol
January 2025
Department of Pharmacology, Addiction Science, and Toxicology, College of Medicine, The University of Tennessee Health Science Center, Memphis, Tennessee, USA; email:
Toluene intoxication constitutes a persistent public health problem worldwide. While most organs can be damaged, the brain is a primary target whether exposure is accidental, occupational, or recreational. Interventions to prevent/revert brain damage by toluene are curtailed by the scarce information on the molecular targets and mechanisms mediating toluene's brain toxicity and the common exposure to other neurotoxins and/or coexistence of neurological/psychiatric disorders.
View Article and Find Full Text PDFActa Endocrinol (Buchar)
January 2025
Istanbul University-Cerrahpasa Cerrahpasa Faculty of Medicine - Department of Medicine, Istanbul, Turkey.
Obesity epidemic, developed in recent decades with global dissemination, brings scientific interest in causes and consequences for mankind. It is of interest whether obesity existed under different, non-obesogenic environments in ancient time. There is evidence for particular obesity existence in artefacts and pictures from caves, originated in ancient times.
View Article and Find Full Text PDFSynthese
January 2025
Department of Psychiatry, University of Oxford, Warneford Hospital, Oxford, OX3 7JX UK.
This paper explores the idea that deep disagreements essentially involve disputes about what counts as good reasoning, whether it is theoretical or practical reasoning. My central claim is that deep disagreements involve radically different paradigms of some principle or notion that is constitutively basic to reasoning-I refer to these as "basic concepts". To defend this claim, I show how we can understand deep disagreements by accepting the indeterminacy of concept-formation: concepts are not set in stone but are responsive to human needs, and differences in individuating and ordering concepts lead to clashes in paradigms of reasoning.
View Article and Find Full Text PDFNat Commun
January 2025
Department of Chemistry and Biochemistry, University of California, Santa Cruz, CA, USA.
Biogenesis of human telomerase requires its RNA subunit (hTR) to fold into a multi-domain architecture that includes the template-pseudoknot (t/PK) and the three-way junction (CR4/5). These hTR domains bind the telomerase reverse transcriptase (hTERT) protein and are essential for telomerase activity. Here, we probe hTR structure in living cells using dimethyl sulfate mutational profiling with sequencing (DMS-MaPseq) and ensemble deconvolution analysis.
View Article and Find Full Text PDFFront Endocrinol (Lausanne)
January 2025
Department of Pediatric Surgery, Suining Central Hospital, Suining, Sichuan, China.
Background: The triglyceride-glucose (TyG) index and related indices, including the triglyceride-glucose body mass index (TyG-BMI), triglyceride-glucose waist circumference (TyG-WC), and triglyceride-glucose waist-to-height ratio (TyG-WHtR), are increasingly recognized as valuable markers of insulin resistance (IR). This study aimed to assess the associations between these TyG-related indices and kidney stones.
Methods: This cross-sectional study analyzed data from 10,824 participants obtained from the National Health and Nutrition Examination Survey (NHANES) conducted between 2007 and 2020.
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