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Zaniker EJ, Zhang M, Hughes L, La Follette L, Atazhanova T, Trofimchuk A, Babayev E, Duncan FE. Shear wave elastography to assess stiffness of the human ovary and other reproductive tissues across the reproductive lifespan in health and disease†. Biol Reprod 2024; 110:1100-1114. [PMID: 38609185 PMCID: PMC11180622 DOI: 10.1093/biolre/ioae050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2024] [Revised: 03/15/2024] [Accepted: 03/20/2024] [Indexed: 04/14/2024] Open
Abstract
The ovary is one of the first organs to show overt signs of aging in the human body, and ovarian aging is associated with a loss of gamete quality and quantity. The age-dependent decline in ovarian function contributes to infertility and an altered endocrine milieu, which has ramifications for overall health. The aging ovarian microenvironment becomes fibro-inflammatory and stiff with age, and this has implications for ovarian physiology and pathology, including follicle growth, gamete quality, ovulation dynamics, and ovarian cancer. Thus, developing a non-invasive tool to measure and monitor the stiffness of the human ovary would represent a major advance for female reproductive health and longevity. Shear wave elastography is a quantitative ultrasound imaging method for evaluation of soft tissue stiffness. Shear wave elastography has been used clinically in assessment of liver fibrosis and characterization of tendinopathies and various neoplasms in thyroid, breast, prostate, and lymph nodes as a non-invasive diagnostic and prognostic tool. In this study, we review the underlying principles of shear wave elastography and its current clinical uses outside the reproductive tract as well as its successful application of shear wave elastography to reproductive tissues, including the uterus and cervix. We also describe an emerging use of this technology in evaluation of human ovarian stiffness via transvaginal ultrasound. Establishing ovarian stiffness as a clinical biomarker of ovarian aging may have implications for predicting the ovarian reserve and outcomes of Assisted Reproductive Technologies as well as for the assessment of the efficacy of emerging therapeutics to extend reproductive longevity. This parameter may also have broad relevance in other conditions where ovarian stiffness and fibrosis may be implicated, such as polycystic ovarian syndrome, late off target effects of chemotherapy and radiation, premature ovarian insufficiency, conditions of differences of sexual development, and ovarian cancer. Summary sentence: Shear Wave Elastography is a non-invasive technique to study human tissue stiffness, and here we review its clinical applications and implications for reproductive health and disease.
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Affiliation(s)
- Emily J Zaniker
- Department of Obstetrics and Gynecology, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| | - Man Zhang
- Department of Radiology, Michigan Medicine, University of Michigan, Ann Arbor, MI, USA
| | - Lydia Hughes
- Department of Obstetrics and Gynecology, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| | | | - Tomiris Atazhanova
- Department of Obstetrics and Gynecology, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| | - Alexis Trofimchuk
- Department of Obstetrics and Gynecology, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| | - Elnur Babayev
- Department of Obstetrics and Gynecology, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| | - Francesca E Duncan
- Department of Obstetrics and Gynecology, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
- Center for Reproductive Longevity and Equality, Buck Institute for Research on Aging, Novato, CA, USA
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Li C, Zhang H, Wu H, Li J, Liu Q, Li Y, Pan M, Zhao X, Wei Q, Peng S, Ma B. Intermittent fasting improves the oocyte quality of obese mice through the regulation of maternal mRNA storage and translation by LSM14B. Free Radic Biol Med 2024; 217:157-172. [PMID: 38552928 DOI: 10.1016/j.freeradbiomed.2024.03.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/04/2024] [Revised: 03/11/2024] [Accepted: 03/26/2024] [Indexed: 04/04/2024]
Abstract
Obesity has significant repercussions for female reproductive health, including adverse effects on oocyte quality, fertility, embryo development and offspring health. Here, we showed that intermittent fasting (IF) has several notable effects on follicular development, oocyte development and maturation and offspring health in obese mice. IF treatment prevents obesity-associated germline-soma communication defects, mitochondrial dysfunction, oxidative damage, apoptosis, and spindle/chromosomal disruption. RNA-sequencing analysis of oocytes from normal diet (ND), high-fat diet (HFD), and HFD + IF mice indicated that IF treatment improved mitochondrial oxidative phosphorylation function and mRNA storage and translation, which was potentially mediated by the Smith-like family member 14 B (LSM14B). Knockdown of LSM14B by siRNA injection in oocytes from ND mice recapitulates all the translation, mitochondrial dysfunction and meiotic defect phenotypes of oocytes from HFD mice. Remarkably, the injection of Lsm14b mRNA into oocytes from HFD mice rescued the translation, mitochondrial dysfunction and meiotic defect phenotypes. These results demonstrated that dysfunction in the oocyte translation program is associated with obesity-induced meiotic defects, while IF treatment increased LSM14B expression and maternal mRNA translation and restored oocyte quality. This research has important implications for understanding the effects of obesity on female reproductive health and offers a potential nonpharmacological intervention to improve oocyte quality and fertility in obese individuals.
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Affiliation(s)
- Chan Li
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, People's Republic of China; Key Laboratory of Animal Biotechnology, Ministry of Agriculture, Yangling, Shaanxi, People's Republic of China
| | - Hui Zhang
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, People's Republic of China; Key Laboratory of Animal Biotechnology, Ministry of Agriculture, Yangling, Shaanxi, People's Republic of China
| | - Hao Wu
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, People's Republic of China; Key Laboratory of Animal Biotechnology, Ministry of Agriculture, Yangling, Shaanxi, People's Republic of China
| | - Jingmei Li
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, People's Republic of China; Key Laboratory of Animal Biotechnology, Ministry of Agriculture, Yangling, Shaanxi, People's Republic of China
| | - Qingyang Liu
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, People's Republic of China; Key Laboratory of Animal Biotechnology, Ministry of Agriculture, Yangling, Shaanxi, People's Republic of China
| | - Yanxue Li
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, People's Republic of China; Key Laboratory of Animal Biotechnology, Ministry of Agriculture, Yangling, Shaanxi, People's Republic of China
| | - Menghao Pan
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, People's Republic of China; Key Laboratory of Animal Biotechnology, Ministry of Agriculture, Yangling, Shaanxi, People's Republic of China
| | - Xiaoe Zhao
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, People's Republic of China; Key Laboratory of Animal Biotechnology, Ministry of Agriculture, Yangling, Shaanxi, People's Republic of China
| | - Qiang Wei
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, People's Republic of China; Key Laboratory of Animal Biotechnology, Ministry of Agriculture, Yangling, Shaanxi, People's Republic of China
| | - Sha Peng
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, People's Republic of China; Key Laboratory of Animal Biotechnology, Ministry of Agriculture, Yangling, Shaanxi, People's Republic of China.
| | - Baohua Ma
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, People's Republic of China; Key Laboratory of Animal Biotechnology, Ministry of Agriculture, Yangling, Shaanxi, People's Republic of China.
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3
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Uddandrao VVS, Brahma Naidu P, Chandrasekaran P, Saravanan G. Pathophysiology of obesity-related infertility and its prevention and treatment by potential phytotherapeutics. Int J Obes (Lond) 2024; 48:147-165. [PMID: 37963998 DOI: 10.1038/s41366-023-01411-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/26/2023] [Revised: 10/25/2023] [Accepted: 10/31/2023] [Indexed: 11/16/2023]
Abstract
BACKGROUND Obesity is a complex multifactorial disease in which the accumulation of excess body fat has adverse health effects, as it can increase the risk of several problems, including infertility, in both men and women. Obesity and infertility have risen together in recent years. Against this background, the present review aims to highlight the impact of obesity on infertility and the underlying pathophysiology of obesity-related infertility (ORI) in men and women, and to provide readers with knowledge of current trends in the effective development of phytotherapeutics for its treatment. METHODS We thoroughly searched in PubMed, MEDLINE, Scopus, EMBASE, and Google Scholar to find all relevant papers on ORI and the therapeutic effects of phytotherapeutics on ORI in men and women. RESULTS The extensive search of the available literature revealed that obesity affects reproductive function through several complex mechanisms such as hyperlipidaemia, hyperinsulinaemia, hyperandrogenism, increased body mass index, disruption of the hormonal milieu, systemic inflammation, oxidative stress, alterations in epigenetics and dysbiosis. On the other hand, several studies reported that phytotherapeutics has a broad therapeutic spectrum of action by improving sex hormone homeostasis, ovarian dysfunction, menstrual cycle and inhibiting ovarian hyperplasia, as well as down-regulating ovarian apoptosis, inflammation and oxidative stress, and controlling metabolic dysfunction in obese women. Male infertility is also addressed by phytotherapeutics by suppressing lipogenesis, increasing testosterone, 3β-HSD and 17β-HSD levels, improving sperm parameters and attenuating testicular dyslipidaemia, oxidative stress, inflammation and germ cell apoptosis. CONCLUSIONS In the present review, we discussed the effects of obesity on reproductive dysfunction in men and women and the underlying pathophysiology of ORI. In addition, the therapeutic effect of phytotherapeutics against ORI was highlighted.
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Affiliation(s)
- V V Sathibabu Uddandrao
- Centre for Biological Sciences, Department of Biochemistry, K.S. Rangasamy College of Arts and Science (Autonomous), Tiruchengode, Namakkal District, 637215, Tamilnadu, India.
| | - Parim Brahma Naidu
- Department of Animal Physiology and Biochemistry, National Animal Resource Facility for Biomedical Research (ICMR-NARFBR), Hyderabad, Telangana, 500078, India
| | - P Chandrasekaran
- Centre for Biological Sciences, Department of Biochemistry, K.S. Rangasamy College of Arts and Science (Autonomous), Tiruchengode, Namakkal District, 637215, Tamilnadu, India
| | - G Saravanan
- Centre for Biological Sciences, Department of Biochemistry, K.S. Rangasamy College of Arts and Science (Autonomous), Tiruchengode, Namakkal District, 637215, Tamilnadu, India
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Prieto-Huecas L, Piera-Jordán CÁ, Serrano De La Cruz-Delgado V, Zaragoza-Martí A, García-Velert MB, Tordera-Terrades C, Sánchez-Sansegundo M, Martín-Manchado L. Assessment of Nutritional Status and Its Influence on Ovarian Reserve: A Systematic Review. Nutrients 2023; 15:nu15102280. [PMID: 37242163 DOI: 10.3390/nu15102280] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2023] [Revised: 05/06/2023] [Accepted: 05/09/2023] [Indexed: 05/28/2023] Open
Abstract
BACKGROUND Nowadays, there is a growing interest in the relationship among lifestyle, reproductive health, and fertility. Recent investigations highlight the influence of environmental and lifestyle factors such as stress, diet, and nutritional status on reproductive health. The aim of this review was to determine the influence of nutritional status on ovarian reserve in order to improve the reproductive health of women of childbearing age. METHODS A systematic literature review was carried out following the PRISMA method. The quality of the studies was assessed using the Cochrane Collaboration Risk of Bias tool. Data were extracted, and the results were summarized into two blocks: according to the technique used to assess ovarian reserve and nutritional status; according to the results found in the relationship between ovarian reserve and nutritional status. RESULTS A total of 22 articles involving 5929 women were included. In 12 of the included articles (54.5%), a relationship between nutritional status and ovarian reserve was demonstrated. In seven publications (31.8%), the increased body mass index (BMI) led to a decrease in ovarian reserve, two of them (0.9%) in patients with polycystic ovary syndrome, showing a decrease only if BMI > 25. In two articles (0.9%), there was a negative relationship between ovarian reserve and waist-to-hip ratio, and in one (0.45%), a positive relationship was shown between ovarian reserve and testosterone levels, the latter being related to body mass index. In five articles (22.7%), body mass index was used as a confounder and was negatively related to ovarian reserve, and in another four (18%), no correlation was found. CONCLUSIONS Ovarian reserve appears to be influenced by nutritional status. A high body mass index has a negative impact on the ovary, decreasing antral follicle count and anti-Müllerian hormone. Oocyte quality is compromised, increasing the rate of reproductive problems and the demand for assisted reproductive techniques. Further studies are needed to understand which dietary factors have the greatest effect on ovarian reserve in order to promote reproductive health.
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Affiliation(s)
- Laura Prieto-Huecas
- Obstetrics and Gynaecology Service, Hospital Marina Salud, 03700 Denia, Spain
| | | | | | - Ana Zaragoza-Martí
- Department of Nursing, University of Alicante, 03690 Alicante, Spain
- Alicante Institute for Health and Biomedical Research (ISABIAL-FISABIO Foundation), 03010 Alicante, Spain
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Rishi JK, Timme K, White HE, Kerns KC, Keating AF. Obesity partially potentiates dimethylbenz[a]anthracene-exposed ovotoxicity by altering the DNA damage repair response in mice†. Biol Reprod 2023; 108:694-707. [PMID: 36702632 PMCID: PMC10106840 DOI: 10.1093/biolre/ioac218] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2022] [Revised: 08/02/2022] [Accepted: 11/30/2022] [Indexed: 01/28/2023] Open
Abstract
Obesity adversely affects reproduction, impairing oocyte quality, fecundity, conception, and implantation. The ovotoxicant, dimethylbenz[a]anthracene, is biotransformed into a genotoxic metabolite to which the ovary responds by activating the ataxia telangiectasia mutated DNA repair pathway. Basal ovarian DNA damage coupled with a blunted response to genotoxicant exposure occurs in obese females, leading to the hypothesis that obesity potentiates ovotoxicity through ineffective DNA damage repair. Female KK.Cg-a/a (lean) and KK.Cg-Ay/J (obese) mice received corn oil or dimethylbenz[a]anthracene (1 mg/kg) at 9 weeks of age for 7 days via intraperitoneal injection (n = 10/treatment). Obesity increased liver weight (P < 0.001) and reduced (P < 0.05) primary, preantral, and corpora lutea number. In lean mice, dimethylbenz[a]anthracene exposure tended (P < 0.1) to increase proestrus duration and reduced (P = 0.07) primordial follicle number. Dimethylbenz[a]anthracene exposure decreased (P < 0.05) uterine weight and increased (P < 0.05) primary follicle number in obese mice. Total ovarian abundance of BRCA1, γH2AX, H3K4me, H4K5ac, H4K12ac, and H4K16ac (P > 0.05) was unchanged by obesity or dimethylbenz[a]anthracene exposure. Immunofluorescence staining demonstrated decreased (P < 0.05) abundance of γH2AX foci in antral follicles of obese mice. In primary follicle oocytes, BRCA1 protein was reduced (P < 0.05) by dimethylbenz[a]anthracene exposure in lean mice. Obesity also decreased (P < 0.05) BRCA1 protein in primary follicle oocytes. These findings support both a follicle stage-specific ovarian response to dimethylbenz[a]anthracene exposure and an impact of obesity on this ovarian response.
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Affiliation(s)
- Jaspreet K Rishi
- Department of Animal Science, Iowa State University, Ames, IA, USA
| | - Kelsey Timme
- Department of Animal Science, Iowa State University, Ames, IA, USA
| | - Hunter E White
- Department of Animal Science, Iowa State University, Ames, IA, USA
| | - Karl C Kerns
- Department of Animal Science, Iowa State University, Ames, IA, USA
| | - Aileen F Keating
- Department of Animal Science, Iowa State University, Ames, IA, USA
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6
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Ermisch AF, Bidne KL, Kurz SG, Bochantin KA, Wood JR. Ovarian inflammation mediated by Toll-like receptor 4 increased transcripts of maternal effect genes and decreased embryo development†. Biol Reprod 2023; 108:423-436. [PMID: 36461933 DOI: 10.1093/biolre/ioac212] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Revised: 11/03/2022] [Accepted: 11/25/2022] [Indexed: 12/07/2022] Open
Abstract
Obese women are subfertile and have reduced assisted reproduction success, which may be due to reduced oocyte competence. We hypothesize that consumption of a high-fat/high-sugar diet induces ovarian inflammation, which is a primary contributor to decreased oocyte quality and pre-implantation embryo development. To test this hypothesis, C57BL/6 (B6) mice with a normal inflammatory response and C3H/HeJ (C3H) mice with a dampened inflammatory response due to dysfunctional Toll-like receptor 4 were fed either normal chow or high-fat/high-sugar diet. In both B6 and C3H females, high-fat/high-sugar diet induced excessive adiposity and hyperglycemia compared to normal chow-fed counterparts. Conversely, ovarian CD68 levels and oocyte expression of oxidative stress markers were increased when collected from B6 high-fat/high-sugar but not C3H high-fat/high-sugar mice. Following in vitro fertilization of in vivo matured oocytes, blastocyst development was decreased in B6-high-fat/high-sugar but not C3H high-fat/high-sugar mice. Expression of cumulus cell markers of oocyte quality were altered in both B6 high-fat/high-sugar and C3H high-fat/high-sugar. However, there were no diet-dependent differences in spindle abnormalities in either B6 or C3H mice, suggesting potential defects in cytoplasmic maturation. Indeed, there were significant increases in the abundance of maternal effect gene mRNAs in oocytes from only B6 high-fat/high-sugar mice. These differentially expressed genes encode proteins of the subcortical maternal complex and associated with mRNA metabolism and epigenetic modifications. These genes regulate maternal mRNA degradation at oocyte maturation, mRNA clearance at the zygotic genome activation, and methylation of imprinted genes suggesting a mechanism by which inflammation induced oxidative stress impairs embryo development.
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Affiliation(s)
- Alison F Ermisch
- Department of Animal Science, University of Nebraska-Lincoln, Lincoln, NE, USA
| | - Katie L Bidne
- Department of Animal Science, University of Nebraska-Lincoln, Lincoln, NE, USA
| | - Scott G Kurz
- Department of Animal Science, University of Nebraska-Lincoln, Lincoln, NE, USA
| | - Kerri A Bochantin
- Department of Animal Science, University of Nebraska-Lincoln, Lincoln, NE, USA
| | - Jennifer R Wood
- Department of Animal Science, University of Nebraska-Lincoln, Lincoln, NE, USA
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Di Berardino C, Peserico A, Capacchietti G, Zappacosta A, Bernabò N, Russo V, Mauro A, El Khatib M, Gonnella F, Konstantinidou F, Stuppia L, Gatta V, Barboni B. High-Fat Diet and Female Fertility across Lifespan: A Comparative Lesson from Mammal Models. Nutrients 2022; 14:nu14204341. [PMID: 36297035 PMCID: PMC9610022 DOI: 10.3390/nu14204341] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Revised: 10/10/2022] [Accepted: 10/14/2022] [Indexed: 11/18/2022] Open
Abstract
Female reproduction focuses mainly on achieving fully grown follicles and competent oocytes to be successfully fertilized, as well as on nourishing the developing offspring once pregnancy occurs. Current evidence demonstrates that obesity and/or high-fat diet regimes can perturbate these processes, leading to female infertility and transgenerational disorders. Since the mechanisms and reproductive processes involved are not yet fully clarified, the present review is designed as a systematic and comparative survey of the available literature. The available data demonstrate the adverse influences of obesity on diverse reproductive processes, such as folliculogenesis, oogenesis, and embryo development/implant. The negative reproductive impact may be attributed to a direct action on reproductive somatic and germinal compartments and/or to an indirect influence mediated by the endocrine, metabolic, and immune axis control systems. Overall, the present review highlights the fragmentation of the current information limiting the comprehension of the reproductive impact of a high-fat diet. Based on the incidence and prevalence of obesity in the Western countries, this topic becomes a research challenge to increase self-awareness of dietary reproductive risk to propose solid and rigorous preventive dietary regimes, as well as to develop targeted pharmacological interventions.
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Affiliation(s)
- Chiara Di Berardino
- Faculty of Bioscience and Technology for Food, Agriculture and Environment, University of Teramo, 64100 Teramo, Italy
| | - Alessia Peserico
- Faculty of Bioscience and Technology for Food, Agriculture and Environment, University of Teramo, 64100 Teramo, Italy
- Correspondence:
| | - Giulia Capacchietti
- Faculty of Bioscience and Technology for Food, Agriculture and Environment, University of Teramo, 64100 Teramo, Italy
| | - Alex Zappacosta
- Faculty of Bioscience and Technology for Food, Agriculture and Environment, University of Teramo, 64100 Teramo, Italy
| | - Nicola Bernabò
- Faculty of Bioscience and Technology for Food, Agriculture and Environment, University of Teramo, 64100 Teramo, Italy
- Institute of Biochemistry and Cell Biology (IBBC), National Research Council, A. Buzzati-Traverso Campus, via E. Ramarini 32, Monterotondo Scalo, 00015 Rome, Italy
| | - Valentina Russo
- Faculty of Bioscience and Technology for Food, Agriculture and Environment, University of Teramo, 64100 Teramo, Italy
| | - Annunziata Mauro
- Faculty of Bioscience and Technology for Food, Agriculture and Environment, University of Teramo, 64100 Teramo, Italy
| | - Mohammad El Khatib
- Faculty of Bioscience and Technology for Food, Agriculture and Environment, University of Teramo, 64100 Teramo, Italy
| | - Francesca Gonnella
- Faculty of Bioscience and Technology for Food, Agriculture and Environment, University of Teramo, 64100 Teramo, Italy
- Department of Psychological Health and Territorial Sciences, School of Medicine and Health Sciences, “G. d’Annunzio” University of Chieti-Pescara, 66100 Chieti, Italy
- Unit of Molecular Genetics, Center for Advanced Studies and Technology (CAST), “G. d’Annunzio” University of Chieti-Pescara, 66100 Chieti, Italy
| | - Fani Konstantinidou
- Faculty of Bioscience and Technology for Food, Agriculture and Environment, University of Teramo, 64100 Teramo, Italy
- Department of Psychological Health and Territorial Sciences, School of Medicine and Health Sciences, “G. d’Annunzio” University of Chieti-Pescara, 66100 Chieti, Italy
- Unit of Molecular Genetics, Center for Advanced Studies and Technology (CAST), “G. d’Annunzio” University of Chieti-Pescara, 66100 Chieti, Italy
| | - Liborio Stuppia
- Department of Psychological Health and Territorial Sciences, School of Medicine and Health Sciences, “G. d’Annunzio” University of Chieti-Pescara, 66100 Chieti, Italy
- Unit of Molecular Genetics, Center for Advanced Studies and Technology (CAST), “G. d’Annunzio” University of Chieti-Pescara, 66100 Chieti, Italy
| | - Valentina Gatta
- Department of Psychological Health and Territorial Sciences, School of Medicine and Health Sciences, “G. d’Annunzio” University of Chieti-Pescara, 66100 Chieti, Italy
- Unit of Molecular Genetics, Center for Advanced Studies and Technology (CAST), “G. d’Annunzio” University of Chieti-Pescara, 66100 Chieti, Italy
| | - Barbara Barboni
- Faculty of Bioscience and Technology for Food, Agriculture and Environment, University of Teramo, 64100 Teramo, Italy
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A Systematic Review of the Effects of High-Fat Diet Exposure on Oocyte and Follicular Quality: A Molecular Point of View. Int J Mol Sci 2022; 23:ijms23168890. [PMID: 36012154 PMCID: PMC9408717 DOI: 10.3390/ijms23168890] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Revised: 08/03/2022] [Accepted: 08/04/2022] [Indexed: 12/19/2022] Open
Abstract
Worldwide, infertility affects between 10 and 15% of reproductive-aged couples. Female infertility represents an increasing health issue, principally in developing countries, as the current inclinations of delaying pregnancy beyond 35 years of age significantly decrease fertility rates. Female infertility, commonly imputable to ovulation disorders, can be influenced by several factors, including congenital malformations, hormonal dysfunction, and individual lifestyle choices, such as smoking cigarettes, stress, drug use and physical activity. Moreover, diet-related elements play an important role in the regulation of ovulation. Modern types of diet that encourage a high fat intake exert a particularly negative effect on ovulation, affecting the safety of gametes and the implantation of a healthy embryo. Identifying and understanding the cellular and molecular mechanisms responsible for diet-associated infertility might help clarify the confounding multifaceted elements of infertility and uncover novel, potentially curative treatments. In this view, this systematic revision of literature will summarize the current body of knowledge of the potential effect of high-fat diet (HFD) exposure on oocyte and follicular quality and consequent female reproductive function, with particular reference to molecular mechanisms and pathways. Inflammation, oxidative stress, gene expression and epigenetics represent the main mechanisms associated with mammal folliculogenesis and oogenesis.
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9
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Abstract
Increasing evidence has demonstrated that obesity impairs female fertility and negatively affects human reproductive outcome following medically assisted reproduction (MAR) treatment. In the United States, 36.5% of women of reproductive age are obese. Obesity results not only in metabolic disorders including type II diabetes and cardiovascular disease, but might also be responsible for chronic inflammation and oxidative stress. Several studies have demonstrated that inflammation and reactive oxygen species (ROS) in the ovary modify steroidogenesis and might induce anovulation, as well as affecting oocyte meiotic maturation, leading to impaired oocyte quality and embryo developmental competence. Although the adverse effect of female obesity on human reproduction has been an object of debate in the past, there is growing evidence showing a link between female obesity and increased risk of infertility. However, further studies need to clarify some gaps in knowledge. We reviewed the recent evidence on the association between female obesity and infertility. In particular, we highlight the association between fat distribution and reproductive outcome, and how the inflammation and oxidative stress mechanisms might reduce ovarian function and oocyte quality. Finally, we evaluate the connection between female obesity and endometrial receptivity.
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10
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Gonzalez MB, Robker RL, Rose RD. Obesity and oocyte quality: Significant implications for ART and Emerging mechanistic insights. Biol Reprod 2021; 106:338-350. [PMID: 34918035 DOI: 10.1093/biolre/ioab228] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Revised: 11/22/2021] [Accepted: 12/07/2021] [Indexed: 11/14/2022] Open
Abstract
The prevalence of obesity in adults worldwide, and specifically in women of reproductive age, is concerning given the risks to fertility posed by the increased risk of type 2 diabetes, metabolic syndrome and other non-communicable diseases. Obesity has a multi-systemic impact in female physiology that is characterized by the presence of oxidative stress, lipotoxicity, and the activation of pro-inflammatory pathways, inducing tissue-specific insulin resistance and ultimately conducive to abnormal ovarian function. A higher body mass is linked to Polycystic Ovary Syndrome, dysregulated menstrual cycles, anovulation, and longer time to pregnancy, even in ovulatory women. In the context of ART, compared to women of normal BMI, obese women have worse outcomes in every step of their journey, resulting in reduced success measured as live birth rate. Even after pregnancy is achieved, obese women have a higher chance of miscarriage, gestational diabetes, pregnancy complications, birth defects, and most worryingly, a higher risk of stillbirth and neonatal death. The potential for compounding effects of ART on pregnancy complications and infant morbidities in obese women has not been studied. There is still much debate in the field on whether these poorer outcomes are mainly driven by defects in oocyte quality, abnormal embryo development or an unaccommodating uterine environment, however the clinical evidence to date suggests a combination of all three are responsible. Animal models of maternal obesity shed light on the mechanisms underlaying the effects of obesity on the peri-conception environment, with recent findings pointing to lipotoxicity in the ovarian environment as a key driver of defects in oocytes that have not only reduced developmental competence but long-lasting effects in offspring health.
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Affiliation(s)
- Macarena B Gonzalez
- Robinson Research Institute, School of Biomedicine, University of Adelaide, Adelaide, South Australia, Australia
| | - Rebecca L Robker
- Robinson Research Institute, School of Biomedicine, University of Adelaide, Adelaide, South Australia, Australia
| | - Ryan D Rose
- Robinson Research Institute, School of Biomedicine, University of Adelaide, Adelaide, South Australia, Australia.,Fertility SA, St. Andrews Hospital, Adelaide, South Australia, Australia
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11
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Jahangirifar M, Taebi M, Nasr-Esfahani MH, Heidari-Beni M, Asgari GH. Dietary Fatty Acid Intakes and the Outcomes of Assisted Reproductive Technique in Infertile Women. J Reprod Infertil 2021; 22:173-183. [PMID: 34900638 PMCID: PMC8607876 DOI: 10.18502/jri.v22i3.6718] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Accepted: 07/02/2021] [Indexed: 11/24/2022] Open
Abstract
Background The purpose of this study was evaluating the relationship between fatty acid (FA) intakes and the Assisted Reproductive Technique (ART) outcomes in infertile women. Methods In this descriptive longitudinal study, a validated food frequency questionnaire (FFQ) was used to measure dietary intakes among 217 women with primary infertility seeking ART treatments at Isfahan Fertility and Infertility Center, Isfahan, Iran. The average number of total and metaphase II (MII) oocytes, the fertilization rate, the ratio of good and bad quality embryo and biochemical and clinical pregnancy were assessed. Analyses were performed using mean, standard deviation, Chi-square test, ANOVA, ANCOVA, logistic regression. Results A total of 140 women were finally included in the study. There was a positive relationship between the average number of total and MII oocytes and the amount of total fatty acids (TFAs), saturated fatty acids (SFAs), monounsaturated fatty acids (MUFAs), polyunsaturated fatty acids (PUFAs), linoleic acids, linolenic acids, and oleic acids intakes, while eicosapentaenoic acids (EPAs) and docosahexaenoic acids (DHAs) intakes had an inverse relationship. Consuming more amounts of TFAs, SFAs, PUFAs, MUFAs, linoleic acids, and oleic acids was associated with the lower fertilization rate, whereas the consumption of linolenic acids and EPAs increased the fertilization rate. The ratio of good quality embryo was directly affected by the amount of PUFAs intakes. Additionally, there was a negative correlation between the amount of SFAs intakes and the number of pregnant women. Conclusion TFAs, SFA, PUFA, and MUFA intakes could have both beneficial and adverse impacts on ART outcomes.
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Affiliation(s)
- Maryam Jahangirifar
- School of Nursing and Midwifery, Faculty of Medicine, Nursing and Health Sciences, Monash University, Melbourne, Australia
| | - Mahboube Taebi
- Department of Midwifery and Reproductive Health, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Mohammad Hossein Nasr-Esfahani
- Department of Animal Biotechnology, Reproductive Biomedicine Research Center, Royan Institute for Biotechnology, ACECR, Isfahan, Iran
| | - Motahar Heidari-Beni
- Child Growth and Development Research Center, Research Institute for Primordial Prevention of Non-Communicable Disease, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Gholam Hossein Asgari
- Department of Community Nutrition, Isfahan University of Medical Sciences, Isfahan, Iran
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Prevention of Teratogenesis in Pregnancies of Obese Rats by Vitamin E Supplementation. Antioxidants (Basel) 2021; 10:antiox10081173. [PMID: 34439421 PMCID: PMC8389020 DOI: 10.3390/antiox10081173] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2021] [Revised: 07/12/2021] [Accepted: 07/15/2021] [Indexed: 01/15/2023] Open
Abstract
Congenital malformations are a common adverse outcome in pregnancies complicated by pregestational obesity, although the underlying mechanisms are still unrevealed. Our aim was to study the effect of oxidative stress in obesity-induced teratogenesis. Wistar rats were fed a high-fat diet for 13 weeks, with (OE group) or without (O group) vitamin E supplementation. Then, rats were mated and sacrificed at day 11.5 of gestation. Embryos from O dams presented a 25.9 ± 3.5% rate of malformations (vs. 8.7 ± 3.4% in C rats), which was reduced in the OE group (11.5 ± 2.3%). Pregestational obesity induced hepatic protein and DNA oxidation and a decline in antioxidant enzymes. Importantly, glutathione content was also decreased, limiting the availability of this antioxidant in the embryos. Vitamin E supplementation efficiently maintained glutathione levels in the obese mothers, which could be used in their embryos to prevent oxidation-induced malformations. To test the effect of decreasing glutathione levels alone in a cell culture model of neuroepithelium, murine embryonic stem cells (ESC) were induced to form neuronal precursors and glutathione synthesis was inhibited with the gamma–glutamylcysteine synthesis inhibitor, buthionine sulfoximine (BSO). BSO inhibited the expression of Pax3, a gene required for neural tube closure that is also inhibited by oxidative stress. Taken together, our data indicate that obesity causes malformations through the depletion of maternal glutathione, thereby decreasing glutathione-dependent free radical scavenging in embryos, which can be prevented by vitamin E supplementation.
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Rogers HB, Zhou LT, Kusuhara A, Zaniker E, Shafaie S, Owen BC, Duncan FE, Woodruff TK. Dental resins used in 3D printing technologies release ovo-toxic leachates. CHEMOSPHERE 2021; 270:129003. [PMID: 33515896 PMCID: PMC7957323 DOI: 10.1016/j.chemosphere.2020.129003] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Revised: 10/31/2020] [Accepted: 11/15/2020] [Indexed: 06/02/2023]
Abstract
We recently engineered the first female reproductive tract on a chip (EVATAR), to enable sex-based ex vivo research. To increase the scalability and accessibility of EVATAR, we turned to 3D printing (3DP) technologies, selecting two biocompatible 3DP resins, Dental SG (DSG) and Dental LT (DLT) to generate 3DP microphysiologic platforms. Due to the known sensitivity of reproductive cells to leachable compounds, we first screened for toxicity of these biomaterials using an in vitro mammalian oocyte maturation assay. Culture of mouse oocytes in 3DP plates using conventionally treated DSG resin resulted in rapid oocyte degeneration. Oxygen plasma treatment of the surface of printed DSG resin prevented this degeneration, and the majority of the resulting oocytes progressed through meiosis in vitro. However, 57.0% ± 37.2% of the cells cultured in the DSG resin plates exhibited abnormal chromosome morphology compared to 19.4% ± 17.3% of controls cultured in polystyrene. All tested DLT resin conditions, including plasma treatment, resulted in complete and rapid oocyte degeneration. To identify the ovo-toxic component of DLT, we analyzed DLT leachate using mass spectroscopy. We identified Tinuvin 292, a commercial light stabilizer, as a major component of the DLT leachate, which resulted in a dose-dependent disruption of meiotic progression and increase in chromosomal abnormalities with oocyte exposure, showing significant ovo-toxicity in mammals. Severe reproductive toxicity induced by in vitro exposure to these 3D-printed resins highlights potential risks of deploying insufficiently characterized materials for biomedical applications and underscores the need for more rigorous evaluation and designation of biocompatible materials.
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Affiliation(s)
- Hunter B Rogers
- Department of Obstetrics and Gynecology, Northwestern University, Chicago, IL, 60611, USA
| | - Luhan T Zhou
- Department of Obstetrics and Gynecology, Northwestern University, Chicago, IL, 60611, USA
| | - Atsuko Kusuhara
- Department of Obstetrics and Gynecology, Northwestern University, Chicago, IL, 60611, USA
| | - Emily Zaniker
- Department of Obstetrics and Gynecology, Northwestern University, Chicago, IL, 60611, USA
| | - Saman Shafaie
- Integrated Molecular Structure Education and Research Center (IMSERC), Northwestern University, Evanston, IL, 60208, USA
| | - Benjamin C Owen
- Integrated Molecular Structure Education and Research Center (IMSERC), Northwestern University, Evanston, IL, 60208, USA
| | - Francesca E Duncan
- Department of Obstetrics and Gynecology, Northwestern University, Chicago, IL, 60611, USA.
| | - Teresa K Woodruff
- Department of Obstetrics and Gynecology, Northwestern University, Chicago, IL, 60611, USA.
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Rao A, Satheesh A, Nayak G, Poojary PS, Kumari S, Kalthur SG, Mutalik S, Adiga SK, Kalthur G. High-fat diet leads to elevated lipid accumulation and endoplasmic reticulum stress in oocytes, causing poor embryo development. Reprod Fertil Dev 2020; 32:1169-1179. [PMID: 32998795 DOI: 10.1071/rd20112] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Accepted: 07/28/2020] [Indexed: 11/23/2022] Open
Abstract
The present study was designed to investigate the effect of diet-induced obesity on endoplasmic reticulum (ER) stress in oocytes. Swiss albino mice (3 weeks old) were fed with a high-fat diet (HFD) for 8 weeks. Oocytes were assessed for lipid droplet accumulation, oxidative stress, ER stress and their developmental potential invitro. High lipid accumulation (P<0.01) and elevated intracellular levels of reactive oxygen species were observed in both germinal vesicle and MII oocytes of HFD-fed mice (P<0.05 and P<0.01 respectively compared with control). Further, expression of the ER stress markers X-box binding protein 1 (XBP1), glucose-regulated protein 78 (GRP78), activating transcription factor 4 (ATF4) and activating transcription factor 6 (ATF6) was significantly (P<0.001) higher in oocytes of the HFD than control group. Oocytes from HFD-fed mice exhibited poor fertilisation and blastocyst rates, a decrease in total cell number and high levels of DNA damage (P<0.01) compared with controls. In conclusion, diet-induced obesity resulted in elevated lipid levels and higher oxidative and ER stress in oocytes, which contributed to the compromised developmental potential of embryos.
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Affiliation(s)
- Arpitha Rao
- Department of Clinical Embryology, Kasturba Medical College Manipal, Manipal Academy of Higher Education, Manipal 576 104, Karnataka State, India
| | - Aparna Satheesh
- Department of Clinical Embryology, Kasturba Medical College Manipal, Manipal Academy of Higher Education, Manipal 576 104, Karnataka State, India
| | - Guruprasad Nayak
- Department of Clinical Embryology, Kasturba Medical College Manipal, Manipal Academy of Higher Education, Manipal 576 104, Karnataka State, India
| | - Pooja Suresh Poojary
- Department of Clinical Embryology, Kasturba Medical College Manipal, Manipal Academy of Higher Education, Manipal 576 104, Karnataka State, India
| | - Sandhya Kumari
- Department of Clinical Embryology, Kasturba Medical College Manipal, Manipal Academy of Higher Education, Manipal 576 104, Karnataka State, India
| | - Sneha Guruprasad Kalthur
- Department of Anatomy, Kasturba Medical College Manipal, Manipal Academy of Higher Education, Manipal 576 104, Karnataka State, India
| | - Srinivas Mutalik
- Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal 576 104, Karnataka State, India
| | - Satish Kumar Adiga
- Department of Clinical Embryology, Kasturba Medical College Manipal, Manipal Academy of Higher Education, Manipal 576 104, Karnataka State, India
| | - Guruprasad Kalthur
- Department of Clinical Embryology, Kasturba Medical College Manipal, Manipal Academy of Higher Education, Manipal 576 104, Karnataka State, India; and Corresponding author.
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Melanocortin-4 receptor regulation of reproductive function in black rockfish (Sebastes schlegelii). Gene 2020; 741:144541. [PMID: 32165303 DOI: 10.1016/j.gene.2020.144541] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2019] [Revised: 02/20/2020] [Accepted: 03/08/2020] [Indexed: 01/15/2023]
Abstract
Melanocortin-4 receptor (MC4R) is a G protein-coupled receptor with multiple functions in mammals. However, the functions of MC4R in fish have not been investigated extensively. The purpose of this study was to determine potential regulation of reproduction by the MC4R. We cloned the black rockfish MC4R and analyzed its tissue distribution and function. The results showed that black rockfish mc4r cDNA consisted of 981 nucleotides encoding a protein of 326 amino acids. The quantitative PCR data showed that mc4r mRNA was primarily expressed in the brain, gonad, stomach and intestine. In the brain, mc4r was found to be primarily located in the hypothalamus. Both α-MSH and β-MSH increased gnih expression and decreased sgnrh and cgnrh expression (P < 0.05). α-MSH and β-MSH had opposite effects on kisspeptin expression. In contrast, α-MSH and β-MSH increased the expression of cyp11, cyp19, 3β-hsd and star. In summary, our study shows that MC4R in black rockfish might regulate reproductive function and that the effects of α-MSH and β-MSH might differ.
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Using Single Molecule mRNA Fluorescent in Situ Hybridization (RNA-FISH) to Quantify mRNAs in Individual Murine Oocytes and Embryos. Sci Rep 2018; 8:7930. [PMID: 29785002 PMCID: PMC5962540 DOI: 10.1038/s41598-018-26345-0] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2017] [Accepted: 05/04/2018] [Indexed: 11/23/2022] Open
Abstract
Changes in abundance of mRNAs during oocyte growth and maturation and during pre-implantation embryo development have been documented using quantitative real-time RT-PCR (qPCR), microarray analyses, and whole genome sequencing. However, these techniques require amplification of mRNAs, normalization using housekeeping genes, can be biased for abundant transcripts, and/or require large numbers of oocytes and embryos which can be difficult to acquire from mammalian species. We optimized a single molecule RNA fluorescence in situ hybridization (RNA-FISH) protocol, which amplifies fluorescence signal to detect candidate transcripts, for use with individual oocytes and embryos. Quantification using the software Localize showed patterns of Gdf9 and Pou5f1 mRNA expression in oocytes and embryos that were consistent with previously published data. Interestingly, low levels of Nanog mRNA were also accurately and reproducibly measured in oocytes and one- and two-cell embryos suggesting that RNA-FISH could be used to detect and quantify low abundance transcripts. Unlike other techniques, RNA-FISH is also able to detect changes in the localization patterns of mRNAs which may be used to monitor post-transcriptional regulation of a transcript. Thus, RNA-FISH represents an important technique to investigate potential mechanisms associated with the synthesis and stability of candidate mRNAs in mammalian oocytes and embryos.
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Affiliation(s)
- John S Davis
- Olson Center for Women's Health, Department of Obstetrics and Gynecology, University of Nebraska Medical Center and Research Service, Veterans Affairs Nebraska-Western Iowa Health Care System, Omaha, Nebraska 68198-3255
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Xie F, Anderson CL, Timme KR, Kurz SG, Fernando SC, Wood JR. Obesity-Dependent Increases in Oocyte mRNAs Are Associated With Increases in Proinflammatory Signaling and Gut Microbial Abundance of Lachnospiraceae in Female Mice. Endocrinology 2016; 157:1630-43. [PMID: 26881311 PMCID: PMC4816731 DOI: 10.1210/en.2015-1851] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
RNAs stored in the metaphase II-arrested oocyte play important roles in successful embryonic development. Their abundance is defined by transcriptional activity during oocyte growth and selective degradation of transcripts during LH-induced oocyte maturation. Our previous studies demonstrated that mRNA abundance is increased in mature ovulated oocytes collected from obese humans and mice and therefore may contribute to reduced oocyte developmental competence associated with metabolic dysfunction. In the current study mouse models of diet-induced obesity were used to determine whether obesity-dependent increases in proinflammatory signaling regulate ovarian abundance of oocyte-specific mRNAs. The abundance of oocyte-specific Bnc1, Dppa3, and Pou5f1 mRNAs as well as markers of proinflammatory signaling were significantly increased in ovaries of obese compared with lean mice which were depleted of fully grown preovulatory follicles. Chromatin-immunoprecipitation analyses also demonstrated increased association of phosphorylated signal transducer and activator of transcription 3 with the Pou5f1 promoter in ovaries of obese mice suggesting that proinflammatory signaling regulates transcription of this gene in the oocyte. The cecum microbial content of lean and obese female mice was subsequently examined to identify potential relationships between microbial composition and proinflammatory signaling in the ovary. Multivariate Association with Linear Models identified significant positive correlations between cecum abundance of the bacterial family Lachnospiraceae and ovarian abundance of Tnfa as well as Dppa3, Bnc1, and Pou5f1 mRNAs. Together, these data suggest that diet-induced changes in gut microbial composition may be contributing to ovarian inflammation which in turn alters ovarian gene expression and ultimately contributes to obesity-dependent reduction in oocyte quality and development of infertility in obese patients.
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Affiliation(s)
- Fang Xie
- Department of Animal Science (F.X., K.R.T., S.G.K., S.C.F., J.R.W.), University of Nebraska-Lincoln, Lincoln, Nebraska 68583-0908; School of Biological Sciences (C.L.A., S.C.F.), University of Nebraska-Lincoln, Lincoln, Nebraska 68588-0118; and Food Science and Technology Department (S.C.F.), University of Nebraska-Lincoln, Lincoln, Nebraska 68583-0919
| | - Christopher L Anderson
- Department of Animal Science (F.X., K.R.T., S.G.K., S.C.F., J.R.W.), University of Nebraska-Lincoln, Lincoln, Nebraska 68583-0908; School of Biological Sciences (C.L.A., S.C.F.), University of Nebraska-Lincoln, Lincoln, Nebraska 68588-0118; and Food Science and Technology Department (S.C.F.), University of Nebraska-Lincoln, Lincoln, Nebraska 68583-0919
| | - Kelsey R Timme
- Department of Animal Science (F.X., K.R.T., S.G.K., S.C.F., J.R.W.), University of Nebraska-Lincoln, Lincoln, Nebraska 68583-0908; School of Biological Sciences (C.L.A., S.C.F.), University of Nebraska-Lincoln, Lincoln, Nebraska 68588-0118; and Food Science and Technology Department (S.C.F.), University of Nebraska-Lincoln, Lincoln, Nebraska 68583-0919
| | - Scott G Kurz
- Department of Animal Science (F.X., K.R.T., S.G.K., S.C.F., J.R.W.), University of Nebraska-Lincoln, Lincoln, Nebraska 68583-0908; School of Biological Sciences (C.L.A., S.C.F.), University of Nebraska-Lincoln, Lincoln, Nebraska 68588-0118; and Food Science and Technology Department (S.C.F.), University of Nebraska-Lincoln, Lincoln, Nebraska 68583-0919
| | - Samodha C Fernando
- Department of Animal Science (F.X., K.R.T., S.G.K., S.C.F., J.R.W.), University of Nebraska-Lincoln, Lincoln, Nebraska 68583-0908; School of Biological Sciences (C.L.A., S.C.F.), University of Nebraska-Lincoln, Lincoln, Nebraska 68588-0118; and Food Science and Technology Department (S.C.F.), University of Nebraska-Lincoln, Lincoln, Nebraska 68583-0919
| | - Jennifer R Wood
- Department of Animal Science (F.X., K.R.T., S.G.K., S.C.F., J.R.W.), University of Nebraska-Lincoln, Lincoln, Nebraska 68583-0908; School of Biological Sciences (C.L.A., S.C.F.), University of Nebraska-Lincoln, Lincoln, Nebraska 68588-0118; and Food Science and Technology Department (S.C.F.), University of Nebraska-Lincoln, Lincoln, Nebraska 68583-0919
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Iessa N, Bérard A. Update on Prepregnancy Maternal Obesity: Birth Defects and Childhood Outcomes. J Pediatr Genet 2015; 4:71-83. [PMID: 27617118 PMCID: PMC4918711 DOI: 10.1055/s-0035-1556739] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2015] [Accepted: 01/25/2015] [Indexed: 12/16/2022]
Abstract
Obesity is a growing global health epidemic. It is estimated that more than 20% of pregnancies are complicated by obesity. Prepregnancy obesity has been associated with birth defects such as neural tube defects, macrosomia, fetal death, and long-term effects such as asthma on the offspring. We provide a summary of the most recent studies and meta-analyses on obesity and birth outcome. Possible mechanisms of actions are explored and recommendations for further research are highlighted.
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Affiliation(s)
- Noha Iessa
- Faculty of Pharmacy, University of Montreal, Montreal, Québec, Canada
- Research Center, CHU Sainte-Justine, Montreal, Québec, Canada
| | - Anick Bérard
- Faculty of Pharmacy, University of Montreal, Montreal, Québec, Canada
- Research Center, CHU Sainte-Justine, Montreal, Québec, Canada
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