Association between the peripartum maternal and fetal telomere lengths and mitochondrial DNA copy numbers and preeclampsia: a prospective case–control study
Abstract Purpose To explore changes in telomere length (TL) and mitochondrial copy number (mtDNA-CN) in preeclampsia (PE) and to evaluate the combined effect of maternal TL and mtDNA-CN on PE risk. Methods A case–control study of 471 subjects (130 PE cases and 341 age frequency matched controls with...
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| Format: | Article |
| Language: | English |
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BMC
2022-06-01
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| Series: | BMC Pregnancy and Childbirth |
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| Online Access: | https://doi.org/10.1186/s12884-022-04801-0 |
| _version_ | 1811242195122913280 |
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| author | Ruyi Zhang Jiangbo Du Zhendong Xiao Yuan Jiang Liang Jin Qiao Weng |
| author_facet | Ruyi Zhang Jiangbo Du Zhendong Xiao Yuan Jiang Liang Jin Qiao Weng |
| author_sort | Ruyi Zhang |
| collection | DOAJ |
| description | Abstract Purpose To explore changes in telomere length (TL) and mitochondrial copy number (mtDNA-CN) in preeclampsia (PE) and to evaluate the combined effect of maternal TL and mtDNA-CN on PE risk. Methods A case–control study of 471 subjects (130 PE cases and 341 age frequency matched controls with gestational age rank from 24 to 42 weeks) was conducted in Nanjing Drum Tower Hospital, Jiangsu Province of China. Relative telomere length (RTL) and mtDNA-CN were measured using quantitative polymerase chain reaction (qPCR), and PE risk was compared between groups by logistic regression analyses. Results PE patients displayed longer RTL (0.48 versus 0.30) and higher mtDNA-CN (3.02 versus 2.00) in maternal blood as well as longer RTL (0.61 versus 0.35) but lower mtDNA-CN (1.69 versus 5.49) in cord blood (all p < 0.001). Exercise during pregnancy exerted an obvious effect of maternal telomere length prolongation. Multiparous women with folic acid intake during early pregnancy and those who delivered vaginally showed longer telomere length, while those factors imposed no or opposite effect on RTL in PE cases. Furthermore, RTL and mtDNA-CN were positively correlated in controls (in maternal blood r = 0.18, p < 0.01; in cord blood r = 0.19, p < 0.001), but this correlation was disrupted in PE patients in both maternal blood and cord blood. Longer maternal RTL and higher mtDNA-CN were associated with a higher risk of PE, and the ROC curve of RTL and mtDNA-CN for predicting PE risk presented an AUC of 0.755 (95% CI: 0.698–0.812). Conclusions The interaction of TL and mtDNA-CN may play an important role in the pathogenesis of PE and could be a potential biomarker of PE risk. |
| first_indexed | 2024-04-12T13:48:15Z |
| format | Article |
| id | doaj.art-29758fe7d82a49868ae631d8236333d2 |
| institution | Directory Open Access Journal |
| issn | 1471-2393 |
| language | English |
| last_indexed | 2024-04-12T13:48:15Z |
| publishDate | 2022-06-01 |
| publisher | BMC |
| record_format | Article |
| series | BMC Pregnancy and Childbirth |
| spelling | doaj.art-29758fe7d82a49868ae631d8236333d22022-12-22T03:30:36ZengBMCBMC Pregnancy and Childbirth1471-23932022-06-0122111210.1186/s12884-022-04801-0Association between the peripartum maternal and fetal telomere lengths and mitochondrial DNA copy numbers and preeclampsia: a prospective case–control studyRuyi Zhang0Jiangbo Du1Zhendong Xiao2Yuan Jiang3Liang Jin4Qiao Weng5Department of Obstetrics & Gynecology, Nanjing Drum Tower Hospital, the Affiliated Hospital of Nanjing University Medical SchoolDepartment of Epidemiology and Biostatistics, School of Public Health, Nanjing Medical UniversityDepartment of Obstetrics & Gynecology, Nanjing Drum Tower Hospital, the Affiliated Hospital of Nanjing University Medical SchoolDepartment of Obstetrics & Gynecology, Nanjing Drum Tower Hospital, the Affiliated Hospital of Nanjing University Medical SchoolDepartment of Obstetrics & Gynecology, Nanjing Drum Tower Hospital, the Affiliated Hospital of Nanjing University Medical SchoolDepartment of Obstetrics & Gynecology, Nanjing Drum Tower Hospital, the Affiliated Hospital of Nanjing University Medical SchoolAbstract Purpose To explore changes in telomere length (TL) and mitochondrial copy number (mtDNA-CN) in preeclampsia (PE) and to evaluate the combined effect of maternal TL and mtDNA-CN on PE risk. Methods A case–control study of 471 subjects (130 PE cases and 341 age frequency matched controls with gestational age rank from 24 to 42 weeks) was conducted in Nanjing Drum Tower Hospital, Jiangsu Province of China. Relative telomere length (RTL) and mtDNA-CN were measured using quantitative polymerase chain reaction (qPCR), and PE risk was compared between groups by logistic regression analyses. Results PE patients displayed longer RTL (0.48 versus 0.30) and higher mtDNA-CN (3.02 versus 2.00) in maternal blood as well as longer RTL (0.61 versus 0.35) but lower mtDNA-CN (1.69 versus 5.49) in cord blood (all p < 0.001). Exercise during pregnancy exerted an obvious effect of maternal telomere length prolongation. Multiparous women with folic acid intake during early pregnancy and those who delivered vaginally showed longer telomere length, while those factors imposed no or opposite effect on RTL in PE cases. Furthermore, RTL and mtDNA-CN were positively correlated in controls (in maternal blood r = 0.18, p < 0.01; in cord blood r = 0.19, p < 0.001), but this correlation was disrupted in PE patients in both maternal blood and cord blood. Longer maternal RTL and higher mtDNA-CN were associated with a higher risk of PE, and the ROC curve of RTL and mtDNA-CN for predicting PE risk presented an AUC of 0.755 (95% CI: 0.698–0.812). Conclusions The interaction of TL and mtDNA-CN may play an important role in the pathogenesis of PE and could be a potential biomarker of PE risk.https://doi.org/10.1186/s12884-022-04801-0Telomere lengthMitochondrial DNA copy numberPreeclampsiaCombined effect |
| spellingShingle | Ruyi Zhang Jiangbo Du Zhendong Xiao Yuan Jiang Liang Jin Qiao Weng Association between the peripartum maternal and fetal telomere lengths and mitochondrial DNA copy numbers and preeclampsia: a prospective case–control study BMC Pregnancy and Childbirth Telomere length Mitochondrial DNA copy number Preeclampsia Combined effect |
| title | Association between the peripartum maternal and fetal telomere lengths and mitochondrial DNA copy numbers and preeclampsia: a prospective case–control study |
| title_full | Association between the peripartum maternal and fetal telomere lengths and mitochondrial DNA copy numbers and preeclampsia: a prospective case–control study |
| title_fullStr | Association between the peripartum maternal and fetal telomere lengths and mitochondrial DNA copy numbers and preeclampsia: a prospective case–control study |
| title_full_unstemmed | Association between the peripartum maternal and fetal telomere lengths and mitochondrial DNA copy numbers and preeclampsia: a prospective case–control study |
| title_short | Association between the peripartum maternal and fetal telomere lengths and mitochondrial DNA copy numbers and preeclampsia: a prospective case–control study |
| title_sort | association between the peripartum maternal and fetal telomere lengths and mitochondrial dna copy numbers and preeclampsia a prospective case control study |
| topic | Telomere length Mitochondrial DNA copy number Preeclampsia Combined effect |
| url | https://doi.org/10.1186/s12884-022-04801-0 |
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