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Prenatal inflammation exposure-programmed hypertension exhibits multi-generational inheritance via disrupting DNA methylome. Acta Pharmacol Sin 2022; 43:1419-1429. [PMID: 34593973 PMCID: PMC8482360 DOI: 10.1038/s41401-021-00772-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2021] [Accepted: 09/01/2021] [Indexed: 02/07/2023] Open
Abstract
The multi-generation heredity trait of hypertension in human has been reported, but the molecular mechanisms underlying multi-generational inheritance of hypertension remain obscure. Recent evidence shows that prenatal inflammatory exposure (PIE) results in increased incidence of cardiovascular diseases, including hypertension. In this study we investigated whether and how PIE contributed to multi-generational inheritance of hypertension in rats. PIE was induced in pregnant rats by intraperitoneal injection of LPS or Poly (I:C) either once on gestational day 10.5 (transient stimulation, T) or three times on gestational day 8.5, 10.5, and 12.5 (persistent stimulation, P). Male offspring was chosen to study the paternal inheritance. We showed that PIE, irrespectively induced by LPS or Poly (I:C) stimulation during pregnancy, resulted in multi-generational inheritance of significantly increased blood pressure in rat descendants, and that prenatal LPS exposure led to vascular remodeling and vasoconstrictor dysfunction in both thoracic aorta and superior mesenteric artery of adult F2 offspring. Furthermore, we revealed that PIE resulted in global alteration of DNA methylome in thoracic aorta of F2 offspring. Specifically, PIE led to the DNA hypomethylation of G beta gamma (Gβγ) signaling genes in both the F1 sperm and the F2 thoracic aorta, and activation of PI3K/Akt signaling was implicated in the pathologic changes and dysregulated vascular tone of aortic tissue in F2 LPS-P offspring. Our data demonstrate that PIE reprogrammed DNA methylome of cells from the germline/mature gametes contributes to the development of hypertension in F2 PIE offspring. This study broadens the current knowledge regarding the multi-generation effect of the cumulative early life environmental factors on the development of hypertension.
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Petersen JM, Ranker LR, Barnard-Mayers R, MacLehose RF, Fox MP. A systematic review of quantitative bias analysis applied to epidemiological research. Int J Epidemiol 2021; 50:1708-1730. [PMID: 33880532 DOI: 10.1093/ije/dyab061] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/05/2021] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND Quantitative bias analysis (QBA) measures study errors in terms of direction, magnitude and uncertainty. This systematic review aimed to describe how QBA has been applied in epidemiological research in 2006-19. METHODS We searched PubMed for English peer-reviewed studies applying QBA to real-data applications. We also included studies citing selected sources or which were identified in a previous QBA review in pharmacoepidemiology. For each study, we extracted the rationale, methodology, bias-adjusted results and interpretation and assessed factors associated with reproducibility. RESULTS Of the 238 studies, the majority were embedded within papers whose main inferences were drawn from conventional approaches as secondary (sensitivity) analyses to quantity-specific biases (52%) or to assess the extent of bias required to shift the point estimate to the null (25%); 10% were standalone papers. The most common approach was probabilistic (57%). Misclassification was modelled in 57%, uncontrolled confounder(s) in 40% and selection bias in 17%. Most did not consider multiple biases or correlations between errors. When specified, bias parameters came from the literature (48%) more often than internal validation studies (29%). The majority (60%) of analyses resulted in >10% change from the conventional point estimate; however, most investigators (63%) did not alter their original interpretation. Degree of reproducibility related to inclusion of code, formulas, sensitivity analyses and supplementary materials, as well as the QBA rationale. CONCLUSIONS QBA applications were rare though increased over time. Future investigators should reference good practices and include details to promote transparency and to serve as a reference for other researchers.
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Affiliation(s)
- Julie M Petersen
- Department of Epidemiology, Boston University School of Public Health, Boston, MA, USA
| | - Lynsie R Ranker
- Department of Epidemiology, Boston University School of Public Health, Boston, MA, USA
| | - Ruby Barnard-Mayers
- Department of Epidemiology, Boston University School of Public Health, Boston, MA, USA
| | - Richard F MacLehose
- Division of Epidemiology and Community Health, University of Minnesota, School of Public Health, Minneapolis, MN, USA
| | - Matthew P Fox
- Department of Epidemiology, Boston University School of Public Health, Boston, MA, USA.,Department of Global Health, Boston University School of Public Health, Boston, MA, USA
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Deng Y, Song L, Nie X, Shou W, Li X. Prenatal inflammation exposure-programmed cardiovascular diseases and potential prevention. Pharmacol Ther 2018; 190:159-172. [PMID: 29803628 DOI: 10.1016/j.pharmthera.2018.05.009] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
In recent years, the rapid development of medical and pharmacological interventions has led to a steady decline in certain noncommunicable chronic diseases (NCDs), such as cancer. However, the overall incidence of cardiovascular diseases (CVDs) has not seemed to decline. CVDs have become even more prevalent in many countries and represent a global health threat and financial burden. An increasing number of epidemiological and experimental studies have demonstrated that maternal insults not only can result in birth defects but also can cause developmental functional defects that contribute to adult NCDs. In the current review, we provide an overview of evidence from both epidemiological investigations and experimental animal studies supporting the concept of developmental reprogramming of adult CVDs in offspring that have experienced prenatal inflammation exposure (PIE) during fetal development (PIE-programmed CVDs), a disease-causing event that has not been effectively controlled. This review describes the epidemiological observations, data from animal models, and related mechanisms for the pathogenesis of PIE-programmed CVDs. In addition, the potential therapeutic interventions of PIE-programmed CVDs are discussed. Finally, we also deliberate the need for future mechanistic studies and biomarker screenings in this important field, which creates a great opportunity to combat the global increase in CVDs by managing the adverse effects of inflammation for prepregnant and pregnant individuals who are at risk for PIE-programmed CVDs.
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Affiliation(s)
- Youcai Deng
- Institute of Materia Medica, College of Pharmacy, Army Medical University (Third Military Medical University), 30# Gaotanyan Rd., Shapingba District, Chongqing 400038, China; Center of Translational Medicine, College of Pharmacy, Army Medical University (Third Military Medical University), 30# Gaotanyan Rd., Shapingba District, Chongqing 400038, China.
| | - Liang Song
- Institute of Materia Medica, College of Pharmacy, Army Medical University (Third Military Medical University), 30# Gaotanyan Rd., Shapingba District, Chongqing 400038, China; Center of Translational Medicine, College of Pharmacy, Army Medical University (Third Military Medical University), 30# Gaotanyan Rd., Shapingba District, Chongqing 400038, China
| | - Xuqiang Nie
- Institute of Materia Medica, College of Pharmacy, Army Medical University (Third Military Medical University), 30# Gaotanyan Rd., Shapingba District, Chongqing 400038, China; Center of Translational Medicine, College of Pharmacy, Army Medical University (Third Military Medical University), 30# Gaotanyan Rd., Shapingba District, Chongqing 400038, China
| | - Weinian Shou
- Institute of Materia Medica, College of Pharmacy, Army Medical University (Third Military Medical University), 30# Gaotanyan Rd., Shapingba District, Chongqing 400038, China; Center of Translational Medicine, College of Pharmacy, Army Medical University (Third Military Medical University), 30# Gaotanyan Rd., Shapingba District, Chongqing 400038, China; Herman B Wells Center for Pediatric Research, Department of Pediatrics, Indiana University School of Medicine, 1044 W. Walnut Street, R4 W302D, Indianapolis, IN 46202, USA
| | - Xiaohui Li
- Institute of Materia Medica, College of Pharmacy, Army Medical University (Third Military Medical University), 30# Gaotanyan Rd., Shapingba District, Chongqing 400038, China; Center of Translational Medicine, College of Pharmacy, Army Medical University (Third Military Medical University), 30# Gaotanyan Rd., Shapingba District, Chongqing 400038, China.
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Cocoros NM, Ording AG, Horváth‐Puhó E, Henderson VW, Sørensen HT. In utero exposure to the 1918 pandemic influenza in Denmark and risk of dementia. Influenza Other Respir Viruses 2018; 12:314-318. [PMID: 29356338 PMCID: PMC5907820 DOI: 10.1111/irv.12542] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/10/2018] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Substantial but inconclusive evidence suggests in utero exposure to influenza infection may be linked with Alzheimer's disease. OBJECTIVES We examined whether individuals exposed in utero to the 1918 influenza pandemic are at increased risk of dementia. PATIENTS/METHODS In this cohort study, surveillance data were used to identify months when influenza activity was at its peak during the pandemic. Using birth dates, exposed and unexposed individuals were identified based on whether they were in utero during ≥1 of the peak months. The outcome, any type of dementia, was identified in population-based medical registries. Time and age at risk were restricted so exposed and unexposed had equal time at risk; diagnoses for dementia were assessed between ages 62 and 92, with a maximum of 30 years at risk. Poisson regression was used to estimate sex-adjusted incidence rate ratios (IRRs). RESULTS We identified 106 479 exposed and 177 918 unexposed persons. Using the cumulative risk function, there were similar proportions of exposed and unexposed with a dementia diagnosis at 11.9% and 11.7%, respectively. Across all ages, the IRR for the association between in utero influenza exposure and any dementia was 1.01 (95% CI 0.99-1.04); for Alzheimer's disease, it was 0.97 (0.93-1.01). When stratified by age and sex, and when dementia type was examined, estimates of association were also null or close to null. CONCLUSIONS Our study suggests there is likely not an association between in utero exposure to the 1918 influenza pandemic and dementia among those 62 and older.
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Affiliation(s)
- Noelle M. Cocoros
- Department of Population MedicineHarvard Medical School and Harvard Pilgrim Health Care InstituteBostonMAUSA
| | - Anne G. Ording
- Department of Clinical EpidemiologyAarhus UniversityAarhusDenmark
| | | | - Victor W. Henderson
- Department of Clinical EpidemiologyAarhus UniversityAarhusDenmark
- Departments of Health Research & Policy and Neurology & Neurological SciencesStanford UniversityStanfordCAUSA
| | - Henrik T. Sørensen
- Department of Clinical EpidemiologyAarhus UniversityAarhusDenmark
- Departments of Health Research & Policy and Neurology & Neurological SciencesStanford UniversityStanfordCAUSA
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