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Fathi M, Omrani MA, Kadkhoda S, Ghahghaei-Nezamabadi A, Ghafouri-Fard S. Impact of miRNAs in the pathoetiology of recurrent implantation failure. Mol Cell Probes 2024; 74:101955. [PMID: 38479679 DOI: 10.1016/j.mcp.2024.101955] [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: 01/30/2024] [Revised: 03/05/2024] [Accepted: 03/10/2024] [Indexed: 04/02/2024]
Abstract
Recurrent implantation failure (RIF) is a condition with a multifactorial basis. Recent research has focused on the role of genetic factors in the pathophysiology of RIF. Of particular note, miRNAs have been found to contribute to the pathogenesis of RIF. Several miRNA polymorphisms have been investigated in this context. Moreover, dysregulation of expression of a number of miRNAs, including miR-374a-5p, miR-145-5p, miR-30b-5p, miR-196b-5p, miR-22, miR-181 and miR-145 has been found in RIF. This review concentrates on the role of miRNAs in RIF to help in identification of the molecular basis for this condition and design of more effective methods for management of RIF, especially in a personalized manner that relies on the expression profiles of miRNAs in the peripheral blood or endometrium.
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Affiliation(s)
- Mohadeseh Fathi
- Department of Medical Genetics, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mohammad Amin Omrani
- Urology and Nephrology Research Center (UNRC), Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Sepideh Kadkhoda
- Urology and Nephrology Research Center (UNRC), Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Akram Ghahghaei-Nezamabadi
- Department of Obstetrics and Gynecology, Arash Women's Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Soudeh Ghafouri-Fard
- Department of Medical Genetics, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
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Zhang Y, Sun X, Li Z, Han X, Wang W, Xu P, Liu Y, Xue Y, Wang Z, Xu S, Wang X, Li G, Tian Y, Zhao Q. Interactions between miRNAs and the Wnt/β-catenin signaling pathway in endometriosis. Biomed Pharmacother 2024; 171:116182. [PMID: 38262146 DOI: 10.1016/j.biopha.2024.116182] [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: 08/01/2023] [Revised: 01/15/2024] [Accepted: 01/16/2024] [Indexed: 01/25/2024] Open
Abstract
Endometriosis is a disease characterized by the ectopic growth of endometrial tissue (glands and stroma) outside the confines of the uterus and often involves vital organs such as the intestines and urinary system. Endometriosis is considered a refractory disease owing to its enigmatic etiology, propensity for recurrence following conservative or surgical interventions, and the absence of radical treatment and long-term management. In recent years, the incidence of endometriosis has gradually increased, rendering it a pressing concern among women of childbearing age. A more profound understanding of its pathogenesis can significantly improve prognosis. Recent research endeavors have spotlighted the molecular mechanisms by which microRNAs (miRNAs) regulate the occurrence and progression of endometriosis. Many miRNAs have been reported to be aberrantly expressed in the affected tissues of both patients and animal models. These miRNAs actively participate in the regulation of inflammatory reactions, cellular proliferation, angiogenesis, and tissue remodeling. Their capacity to modulate crucial signaling pathways, such as the Wnt/β-catenin signaling pathway, reinforces their potential utility as diagnostic markers or therapeutic agents for endometriosis. In this review, we provide the latest insights into the role of miRNAs that interact with the Wnt/β-catenin pathway to regulate the biological behaviors of endometriosis cells and disease-related symptoms, such as pain and infertility. We hope that this review will provide novel insights and promising targets for innovative therapies addressing endometriosis.
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Affiliation(s)
- Yu Zhang
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, PR China
| | - Xueyu Sun
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, PR China; Department of Obstetrics and Gynecology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong 510515, PR China
| | - Zhongkang Li
- Department of Obstetrics and Gynecology, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei 050000, PR China
| | - Xianhong Han
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, PR China
| | - Wenjun Wang
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, PR China
| | - Penglin Xu
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, PR China
| | - Yangyang Liu
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, PR China
| | - Yuna Xue
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, PR China
| | - Zhe Wang
- Department of Basic Medicine, Chengde Medical College, Chengde, Hebei 067000, PR China
| | - Shuling Xu
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, PR China
| | - Xueying Wang
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, PR China
| | - Gailing Li
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, PR China
| | - Yanpeng Tian
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, PR China.
| | - Qian Zhao
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, PR China.
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Tekcan E, Coban U, Onal M, Tural S. miR604A>G gene polymorphism is associated with recurrent pregnancy loss in Turkish women. REVISTA DA ASSOCIACAO MEDICA BRASILEIRA (1992) 2023; 69:e20230454. [PMID: 37729371 PMCID: PMC10508934 DOI: 10.1590/1806-9282.20230454] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Accepted: 05/27/2023] [Indexed: 09/22/2023]
Abstract
OBJECTIVE Recurrent pregnancy loss is considerably a reproductive health problem for couples. Genetic, epigenetic, and environmental factors play an important role in the development of recurrent pregnancy loss. While there are many causes, genetic and epigenetic factors are common. In this study, we aimed to examine the association between miR604 (rs2368393) A>G gene polymorphism and the risk of recurrent miscarriage in the Turkish population. METHODS The study included 250 participants (i.e., 150 patients and 100 controls). DNA samples were isolated from peripheral blood, and polymerase chain reactions and restriction fragment length polymorphism methodologies were applied. RESULTS The genotype distribution and allele frequencies of miR604A>G gene showed statistically significant differences between patients and control groups (p=0.002 and p<0.002, respectively). CONCLUSION As a result of the study, we found that the AA genotype and A allele of the miR604A>G gene were statistically significant for the risk of recurrent pregnancy loss in Turkish women.
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Affiliation(s)
- Esra Tekcan
- Ondokuz Mayıs University, Faculty of Medicine, Central Laboratory – Samsun, Turkey
| | - Ulas Coban
- Ondokuz Mayıs University, Faculty of Medicine, Department of Obstetrics and Gynecology – Samsun, Turkey
| | - Mesut Onal
- Ondokuz Mayıs University, Faculty of Medicine, Department of Obstetrics and Gynecology – Samsun, Turkey
| | - Sengul Tural
- Ondokuz Mayıs University, Faculty of Medicine, Department of Medical Biology – Samsun, Turkey
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Kwon MJ, Kim JH, Kim KJ, Ko EJ, Lee JY, Ryu CS, Ha YH, Kim YR, Kim NK. Genetic Association between Inflammatory-Related Polymorphism in STAT3, IL-1β, IL-6, TNF-α and Idiopathic Recurrent Implantation Failure. Genes (Basel) 2023; 14:1588. [PMID: 37628639 PMCID: PMC10454471 DOI: 10.3390/genes14081588] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Revised: 08/03/2023] [Accepted: 08/04/2023] [Indexed: 08/27/2023] Open
Abstract
Recurrent implantation failure (RIF) is defined as a failure to achieve pregnancy after multiple embryo transfers. Implantation is closely related to inflammatory gradients, and interleukin-1beta (IL-1β), IL-6, and tumor necrosis factor-alpha (TNF-α) play a key role in maternal and trophoblast inflammation during implantation. Signal transducer and activator of transcription 3 (STAT3) interacts with cytokines and plays a critical role in implantation through involvement in the inflammation of the embryo and placenta. Therefore, we investigated 151 RIF patients and 321 healthy controls in Korea and analyzed the association between the polymorphisms (STAT3 rs1053004, IL-1β rs16944, IL-6 rs1800796, and TNF-α rs1800629, 1800630) and RIF prevalence. In this paper, we identified that STAT3 rs1053004 (AG, adjusted odds rate [AOR] = 0.623; p = 0.027; GG, AOR = 0.513; p = 0.043; Dominant, AOR = 0.601, p = 0.011), IL-6 rs1800796 (GG, AOR = 2.472; p = 0.032; Recessive, AOR = 2.374, p = 0.037), and TNF-α rs1800629 (GA, AOR = 2.127, p = 0.010, Dominant, AOR = 2.198, p = 0.007) have a significant association with RIF prevalence. This study is the first to investigate the association of each polymorphism with RIF prevalence in Korea and to compare their effect based on their function on inflammation.
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Affiliation(s)
- Min Jung Kwon
- Department of Biomedical Science, College of Life Science, CHA University, Seongnam 13496, Republic of Korea; (M.J.K.); (K.J.K.); (E.J.K.); (J.Y.L.); (C.S.R.); (Y.H.H.)
| | - Ji Hyang Kim
- Department of Obstetrics and Gynecology, CHA Bundang Medical Center, School of Medicine, CHA University, Seongnam 13496, Republic of Korea;
| | - Kyu Jae Kim
- Department of Biomedical Science, College of Life Science, CHA University, Seongnam 13496, Republic of Korea; (M.J.K.); (K.J.K.); (E.J.K.); (J.Y.L.); (C.S.R.); (Y.H.H.)
| | - Eun Ju Ko
- Department of Biomedical Science, College of Life Science, CHA University, Seongnam 13496, Republic of Korea; (M.J.K.); (K.J.K.); (E.J.K.); (J.Y.L.); (C.S.R.); (Y.H.H.)
| | - Jeong Yong Lee
- Department of Biomedical Science, College of Life Science, CHA University, Seongnam 13496, Republic of Korea; (M.J.K.); (K.J.K.); (E.J.K.); (J.Y.L.); (C.S.R.); (Y.H.H.)
| | - Chang Su Ryu
- Department of Biomedical Science, College of Life Science, CHA University, Seongnam 13496, Republic of Korea; (M.J.K.); (K.J.K.); (E.J.K.); (J.Y.L.); (C.S.R.); (Y.H.H.)
| | - Yong Hyun Ha
- Department of Biomedical Science, College of Life Science, CHA University, Seongnam 13496, Republic of Korea; (M.J.K.); (K.J.K.); (E.J.K.); (J.Y.L.); (C.S.R.); (Y.H.H.)
| | - Young Ran Kim
- Department of Obstetrics and Gynecology, CHA Bundang Medical Center, School of Medicine, CHA University, Seongnam 13496, Republic of Korea;
| | - Nam Keun Kim
- Department of Biomedical Science, College of Life Science, CHA University, Seongnam 13496, Republic of Korea; (M.J.K.); (K.J.K.); (E.J.K.); (J.Y.L.); (C.S.R.); (Y.H.H.)
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miR-27a-3p targets NR5A2 to regulate CYP19A1 expression and 17-β estradiol synthesis in ovine granulosa cells. Anim Reprod Sci 2023; 248:107160. [PMID: 36481589 DOI: 10.1016/j.anireprosci.2022.107160] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Revised: 11/23/2022] [Accepted: 11/28/2022] [Indexed: 12/02/2022]
Abstract
Although 17-β estradiol (E2) synthesis is important in regulating female fertility, we know little regarding the molecular mechanism of miRNA-regulated ovine E2 synthesis. Here, our experiments with granulosa cells (GCs) from Hu sheep revealed miR-27a-3p involvement in E2 synthesis and its association with ovine litter size. First, we showed that miR-27a-3p of sheep and other mammals share a high nucleotide identity. Next, gain- and loss-of-function assays indicated that miR-27a-3p inhibits CYP19A1 expression and E2 synthesis in GCs. Moreover, we demonstrated that NR5A2 is a direct target of miR-27a-3p. Ovine miR-27a-3p suppresses E2 synthesis via the NR5A2 and CYP19A1 axes. We also identified four single nucleotide polymorphisms in the ovine miR-27a gene, and g.-13 G>A and g 0.24 T > G were significantly associated with the first and the second parity litter size, respectively (P < 0.05). In summary, our findings reveal that miR-27a-3p is a novel regulator of E2 synthesis and may predict litter size of Hu sheep, providing insight into mechanisms underlying granulosa cell function and female fertility.
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Ezat SA, Haji AI. Study of association between different microRNA variants and the risk of idiopathic recurrent pregnancy loss. Arch Gynecol Obstet 2022; 306:1281-1286. [PMID: 35841423 DOI: 10.1007/s00404-022-06663-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2022] [Accepted: 06/07/2022] [Indexed: 11/24/2022]
Abstract
AIM Recurrent pregnancy loss (RPL) is a common reproductive disorder among women and a major cause of infertility among them; however, the underlying causes of RPL remain unknown which have led to great difficulties and complications in the treatment. MicroRNAs (miRNA) have been shown to be a potential diagnosis tools in different reproductive disorders. This study aimed to investigate the association of four different miRNA variants with the risk of idiopathic RPL (iRPL). METHODS A total of 450 women including 225 patients and 225 controls were recruited in this study. DNA was extracted, and genotyped by PCR method. Haplotype analysis, as well as linkage disequilibrium between SNPs, was performed. CONCLUSION This study suggested that rs4636297, rs41291957, and rs353292, but not rs531564 can play a risk factor role for iRLP.
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Affiliation(s)
- Shayma Abd Ezat
- Department of Obstetrics and Gynecology, College of Medicine, Iraqi Board in Obstetrics/Gynecology, Hawler Medical University, Erbil, Kurdistan Region, 54612504, Iraq.
| | - Azheen Ismael Haji
- Department of Obstetrics and Gynecology, Maternity Teaching Hospital, Erbil, Kurdistan Region, Iraq
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Genetic Polymorphisms in the 3'-Untranslated Regions of SMAD5, FN3KRP, and RUNX-1 Are Associated with Recurrent Pregnancy Loss. Biomedicines 2022; 10:biomedicines10071481. [PMID: 35884785 PMCID: PMC9313017 DOI: 10.3390/biomedicines10071481] [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: 04/28/2022] [Revised: 05/27/2022] [Accepted: 06/20/2022] [Indexed: 12/13/2022] Open
Abstract
Recurrent pregnancy loss (RPL) is typically defined as two or more consecutive pregnancy losses prior to 20 weeks of gestation. Although the causes of idiopathic RPL are not completely understood, vascular development and glucose concentration were reported to correlate with the pregnancy loss. The TGF-β signaling pathway which plays a significant role in pregnancy is activated by the interaction between high glucose and SMAD signaling and affects the vascular cells. SMAD5 and RUNX-1 are involved in the TGF-β signaling pathway and contribute to advanced glycation end products (AGEs) production and vascular development. FN3KRP, a newly described gene, is also associated with vascular diseases and suggested to relate to AGEs. Therefore, in the present study, we investigated associations between RPL risk and genetic polymorphisms of SMAD5, FN3KRP, and RUNX-1 in 388 women with RPL and 280 healthy control women of Korean ethnicity. Participants were genotyped using real-time polymerase chain reaction and restriction fragment length polymorphism assay to determine the frequency of SMAD5 rs10515478 C>G, FN3KRP rs1046875 G>A, and RUNX-1 rs15285 G>A polymorphisms. We found that women with RPL had lower likelihoods of the FN3KRP rs1046875 AA genotype (adjusted odds ratio (AOR), 0.553; p = 0.010) and recessive model (AOR, 0.631; p = 0.017). Furthermore, combination analysis showed that SMAD5 rs10515478 C>G and FN3KRP rs1046875 G>A mutant alleles were together associated with reduced RPL risk. These findings suggest that the FN3KRP rs1046875 G>A polymorphism has a significant role on the prevalence of RPL in Korean women. Considering that it is the first study indicating a significant association between FN3KRP and pregnancy disease, RPL, our results suggest the need for further investigation of the role of FN3KRP in pregnancy loss.
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Jaafar SO, Jaffar JO, Ibrahim SA, Jarjees KK. MicroRNA Variants miR-27a rs895819 and miR-423 rs6505162, but not miR-124-1 rs531564, are Linked to Endometriosis and its Severity. Br J Biomed Sci 2022; 79:10207. [PMID: 35996508 PMCID: PMC8915672 DOI: 10.3389/bjbs.2021.10207] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Accepted: 12/02/2021] [Indexed: 12/20/2022]
Abstract
Background: While different studies have investigated the association of SNPs with female reproductive disorders, a limited number of studies have investigated the effect of microRNAs variants in endometriosis. In this study, we evaluated the prevalence and the association of three different miRNAs variants including, miR-27a rs895819, miR-124-1 rs531564, and miR-423 rs6505162 with endometriosis to help further elucidate the importance of these variants in female reproductive disorders. Methods: A total number of 440 women (220 cases and 220 controls) were included. DNA was extracted and genotyping of the SNPs was carried out by PCR. Results: The results showed that rs895819 and rs6505162 had a significant association with endometriosis under the dominant, recessive, co-dominant, and allelic model, but rs531564 was not linked to endometriosis. Our results also imply a protective effect on endometriosis severity for AG genotype and G allele in rs895819 (p < 0.001), and also for AA and AC genotypes in rs6505162 with severity in endometriosis (p < 0.001). Moreover, Hardy–Weinberg equilibrium, haplotype frequency, and linkage disequilibrium between SNPs were performed. Conclusion: miR-27a rs895819 and miR-423 rs6505162, but not miR-124-1 rs531564, are linked to endometriosis.
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Affiliation(s)
- S. O. Jaafar
- Department of Obstetrics and Gynecology, College of Medicine, Hawler Medical University, Erbil, Iraq
| | - J. O. Jaffar
- Department of Obstetrics and Gynecology, Erbil Maternity Teaching Hospital, Erbil, Iraq
- *Correspondence: J. O. Jaffar, ,
| | - S. A. Ibrahim
- Department of Obstetrics and Gynecology, Erbil Maternity Teaching Hospital, Erbil, Iraq
| | - K. K. Jarjees
- Department of Food Technology, College of Agricultural Engineering Sciences, University of Salahaddin-Erbil, Erbil, Iraq
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Yu R, Wu C, Qin Y, Li C, Mo Z, Zhai H, Jiang L. Bone Marrow Mesenchymal Stem Cells (BMSCs)-Derived miR-31 in the Pathogenesis of Recurrent Abortion by Regulating Kisspeptins 1 (KISS1) Expression. J BIOMATER TISS ENG 2021. [DOI: 10.1166/jbt.2021.2785] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Bone marrow mesenchymal stem cells (BMSCs) are potentially efficacious in treating recurrent pregnancy disorders and endometrial injury. Uterine parenchymal cells interact with BMSCs to promote functional recovery. Our research aimed to explore the effect of BMSCs-derived miR-31 on
recurrent pregnancy loss. A recurrent pregnancy loss mouse model was constructed followed by nanoparticle analysis of BMSC and miR-31 expressing by RT-PCR. The levels of miR-31 in BMSCs (miR-31+BMSCs or BMSCs) and their counterpart exosomes were up- or down-regulated to explore the effects
of aberrant expression of miR-31 on endometrial damage in recurrent pregnancy loss. The analysis of BMSC nanoparticles showed that miR-31 was derived from BMSC. We found increased levels of miR-31 in miR-340 + BMSCs after incubation with endometrial stromal cells (ESCs) compared to controls.
Labeling of exosomes by red fluorescent protein indicated that exosomes were liberated out of BMSCs and translocated into neighboring ESCs, and mice treated with miR-340 + BMSCs had improved functional recovery from recurrent pregnancy loss. BMSC-derived miR-31 mediates functional recovery
induced in recurrent pregnancy miscarriage mice by regulating KISS1 expression and fibrosis gene expression.
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Affiliation(s)
- Ruiping Yu
- Department Obstetrics, Shijiazhuang Maternity and Child Care Hospital, Shijiazhuang, Hebei, 050000, China
| | - Changfen Wu
- Department Obstetrics, Shijiazhuang Maternity and Child Care Hospital, Shijiazhuang, Hebei, 050000, China
| | - Ying Qin
- Department Obstetrics, Shijiazhuang Maternity and Child Care Hospital, Shijiazhuang, Hebei, 050000, China
| | - Cong Li
- Department Obstetrics, Shijiazhuang Maternity and Child Care Hospital, Shijiazhuang, Hebei, 050000, China
| | - Zhongfu Mo
- Department Obstetrics, Shijiazhuang Maternity and Child Care Hospital, Shijiazhuang, Hebei, 050000, China
| | - Hongwei Zhai
- Department Obstetrics, Shijiazhuang Maternity and Child Care Hospital, Shijiazhuang, Hebei, 050000, China
| | - Lei Jiang
- Department Obstetrics, Shijiazhuang Maternity and Child Care Hospital, Shijiazhuang, Hebei, 050000, China
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Biomolecular Markers of Recurrent Implantation Failure-A Review. Int J Mol Sci 2021; 22:ijms221810082. [PMID: 34576245 PMCID: PMC8472752 DOI: 10.3390/ijms221810082] [Citation(s) in RCA: 40] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2021] [Revised: 09/15/2021] [Accepted: 09/16/2021] [Indexed: 12/18/2022] Open
Abstract
Currently, infertility affects 8–12% of reproductive age couples worldwide, a problem that also affects women suffering from recurrent implantation failure (RIF). RIF is a complex condition resulting from many physiological and molecular mechanisms involving dynamic endometrium–blastocyst interaction. The most important are the endometrial receptivity process, decidualization, trophoblast invasion, and blastocyst nesting. Although the exact multifactorial pathogenesis of RIF remains unclear, many studies have suggested the association between hormone level imbalance, disturbances of angiogenic and immunomodulatory factors, certain genetic polymorphisms, and occurrence of RIF. These studies were performed in quite small groups. Additionally, the results are inconsistent between ethnicities. The present review briefly summarizes the importance of factors involved in RIF development that could also serve as diagnostic determinants. Moreover, our review could constitute part of a new platform for discovery of novel diagnostic and therapeutic solutions for RIF.
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