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Ratajczak-Pawłowska AE, Hryhorowicz S, Szymczak-Tomczak A, Wysocka E, Michalak M, Kaczmarek-Ryś M, Lis-Tanaś E, Bielawska L, Pławski A, Słomski R, Dobrowolska A, Krela-Kaźmierczak I. Genetic variants of MTHFR gene in relation to folic acid levels and bone mineral density in Polish patients with inflammatory bowel disease. J Appl Genet 2024; 65:73-81. [PMID: 37816983 PMCID: PMC10789830 DOI: 10.1007/s13353-023-00792-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Revised: 09/21/2023] [Accepted: 09/25/2023] [Indexed: 10/12/2023]
Abstract
Lower bone mineral density (BMD) constitutes a common issue in inflammatory bowel disease (IBD). Studies often explore the association between BMD and folic acid level. The presented study aimed to evaluate the impact of MTHFR gene polymorphism and folic acid levels on BMD in patients with IBDs: Crohn's disease (CD) and ulcerative colitis (UC). The study group comprised IBD patients and a healthy control group. BMD, T-score, and Z-score of the lumbar spine (L1-L4) and femoral neck (FN) were assessed using dual-energy X-ray absorptiometry. Folic acid level was determined using direct chemiluminescence, and the MTHFR 677C > T (rs1801133) and 1298A > C (rs1801131) genotyping were performed by HRMA. Our study found no significant differences in the folic acid levels between the groups. Patients with CD and UC presented a lower BMD, T-score, and Z-score of the FN and L1-L4 than the CG. UC patients who were homozygotes AA in loci c.1298A>C presented lower than controls lumbar spine L1-L4 BMD and T-score values. Regarding MTHFR 677 polymorphism, we found that IBD patients carrying CC genotype demonstrated lower than controls femoral neck Z-score, lumbar spine L1-L4 BMD, T-score and Z-score. MTHFR polymorphisms were found to have no impact on folic acid concentrations. IBD patients presented a higher risk of low BMD than the healthy controls, regardless of MTHFR 677 and 1298 genotypes. However, MTHFR polymorphism may influence on bone in IBD patients. Nevertheless, it appears essential to conduct further studies.
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Affiliation(s)
- Alicja E Ratajczak-Pawłowska
- Department of Gastroenterology, Dietetics and Internal Diseases, Poznan University of Medical Sciences, Przybyszewskiego 49, 60-355, Poznan, Poland.
- Doctoral School, Poznan University of Medical Sciences, Bukowska 70, 60-812, Poznan, Poland.
| | - Szymon Hryhorowicz
- Institute of Human Genetics, Polish Academy of Sciences Poznan, Strzeszynska 32, 60-479, Poznan, Poland
| | - Aleksandra Szymczak-Tomczak
- Department of Gastroenterology, Dietetics and Internal Diseases, Poznan University of Medical Sciences, Przybyszewskiego 49, 60-355, Poznan, Poland
| | - Ewa Wysocka
- Department of Laboratory Diagnostics, Poznan University of Medical Sciences, Szamarzewskiego 82/84, 60-569, Poznan, Poland
| | - Michał Michalak
- Department of Computer Science and Statistics, Poznan University of Medical Sciences, Rokietnicka 7, 60-806, Poznan, Poland
| | - Marta Kaczmarek-Ryś
- Institute of Human Genetics, Polish Academy of Sciences Poznan, Strzeszynska 32, 60-479, Poznan, Poland
| | - Emilia Lis-Tanaś
- Institute of Human Genetics, Polish Academy of Sciences Poznan, Strzeszynska 32, 60-479, Poznan, Poland
| | - Lena Bielawska
- Department of Laboratory Diagnostics, Poznan University of Medical Sciences, Szamarzewskiego 82/84, 60-569, Poznan, Poland
| | - Andrzej Pławski
- Institute of Human Genetics, Polish Academy of Sciences Poznan, Strzeszynska 32, 60-479, Poznan, Poland
| | - Ryszard Słomski
- Institute of Human Genetics, Polish Academy of Sciences Poznan, Strzeszynska 32, 60-479, Poznan, Poland
| | - Agnieszka Dobrowolska
- Department of Gastroenterology, Dietetics and Internal Diseases, Poznan University of Medical Sciences, Przybyszewskiego 49, 60-355, Poznan, Poland
| | - Iwona Krela-Kaźmierczak
- Department of Gastroenterology, Dietetics and Internal Diseases, Poznan University of Medical Sciences, Przybyszewskiego 49, 60-355, Poznan, Poland.
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Grot N, Kaczmarek-Ryś M, Lis-Tanaś E, Kryszczyńska A, Nowakowska D, Jakubiuk-Tomaszuk A, Paszkowski J, Banasiewicz T, Hryhorowicz S, Pławski A. NTHL1 Gene Mutations in Polish Polyposis Patients-Weighty Player or Vague Background? Int J Mol Sci 2023; 24:14548. [PMID: 37834005 PMCID: PMC10572874 DOI: 10.3390/ijms241914548] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2023] [Revised: 09/19/2023] [Accepted: 09/25/2023] [Indexed: 10/15/2023] Open
Abstract
Multiple polyposes are heterogeneous diseases with different underlying molecular backgrounds, sharing a common symptom: the presence of transforming into cancerous intestinal polyps. Recent reports have indicated biallelic mutations in the NTHL1 gene, which is involved in base excision repair (BER), as predisposing to an elevated risk of colorectal cancer (CRC). We aimed to evaluate the significance of the p.Q82* truncating variant in predisposition to intestinal polyposis by assessing its frequency in polyposis patients. We genotyped 644 Polish patients and 634 control DNA samples using high-resolution melting analysis (HRM) and Sanger sequencing. We found the p.Q82* variant in four polyposis patients; in three, it was homozygous (OR = 6.90, p value = 0.202). Moreover, the p.R92C mutation was detected in one patient. We also looked more closely at the disease course in patients carrying NTHL1 mutations. Two homozygous patients also presented other neoplasia. In the family case, we noticed the earlier presence of polyps in the proband and early hepatoblastoma in his brother. We cannot univocally confirm the relationship of p.Q82* with an increased risk of CRC. However, homozygous p.Q82* was more frequent by 10-fold in patients without other mutations identified, which makes NTHL1 gene screening in this group reasonable.
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Affiliation(s)
- Natalia Grot
- Institute of Human Genetics, Polish Academy of Sciences, Strzeszyńska 32, 60-479 Poznań, Poland; (N.G.); (M.K.-R.); (E.L.-T.); (A.K.); (S.H.)
| | - Marta Kaczmarek-Ryś
- Institute of Human Genetics, Polish Academy of Sciences, Strzeszyńska 32, 60-479 Poznań, Poland; (N.G.); (M.K.-R.); (E.L.-T.); (A.K.); (S.H.)
| | - Emilia Lis-Tanaś
- Institute of Human Genetics, Polish Academy of Sciences, Strzeszyńska 32, 60-479 Poznań, Poland; (N.G.); (M.K.-R.); (E.L.-T.); (A.K.); (S.H.)
| | - Alicja Kryszczyńska
- Institute of Human Genetics, Polish Academy of Sciences, Strzeszyńska 32, 60-479 Poznań, Poland; (N.G.); (M.K.-R.); (E.L.-T.); (A.K.); (S.H.)
| | - Dorota Nowakowska
- Cancer Genetics Unit, Cancer Prevention Department, The Maria Sklodowska-Curie National Research Institute of Oncology in Warsaw, 02-781 Warsaw, Poland;
| | - Anna Jakubiuk-Tomaszuk
- Department of Pediatric Neurology, Medical University of Bialystok, 15-089 Bialystok, Poland;
- Medical Genetics Unit, Mastermed Medical Center, 15-089 Bialystok, Poland
| | - Jacek Paszkowski
- Department of General and Endocrine Surgery and Gastroenterological Oncology, Poznań University of Medical Sciences, Przybyszewskiego 49, 60-355 Poznań, Poland; (J.P.); (T.B.)
| | - Tomasz Banasiewicz
- Department of General and Endocrine Surgery and Gastroenterological Oncology, Poznań University of Medical Sciences, Przybyszewskiego 49, 60-355 Poznań, Poland; (J.P.); (T.B.)
| | - Szymon Hryhorowicz
- Institute of Human Genetics, Polish Academy of Sciences, Strzeszyńska 32, 60-479 Poznań, Poland; (N.G.); (M.K.-R.); (E.L.-T.); (A.K.); (S.H.)
| | - Andrzej Pławski
- Institute of Human Genetics, Polish Academy of Sciences, Strzeszyńska 32, 60-479 Poznań, Poland; (N.G.); (M.K.-R.); (E.L.-T.); (A.K.); (S.H.)
- Department of General and Endocrine Surgery and Gastroenterological Oncology, Poznań University of Medical Sciences, Przybyszewskiego 49, 60-355 Poznań, Poland; (J.P.); (T.B.)
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