1
|
Abdelbaky HH, Shimoda N, Akthar I, Nakamura S, Hasan MH, Ushio N, Miyamoto A, Nishikawa Y. In vitro regulation of gene expression of pregnancy-associated proteins and cytokines in bovine endometrial epithelial cells and bovine trophoblastic cells by infection with Neospora caninum. Parasitol Int 2024; 101:102898. [PMID: 38648880 DOI: 10.1016/j.parint.2024.102898] [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: 10/18/2023] [Revised: 04/17/2024] [Accepted: 04/19/2024] [Indexed: 04/25/2024]
Abstract
Abortion caused by the parasite Neospora caninum is an important threat to the livestock industry worldwide. Trophoblasts and caruncular cells play major roles in initiating innate immune responses and controlling parasite infection at the fetal-maternal interface. In the present study, bovine uterine epithelial cells (BUECs) and bovine trophoblastic (BT) cells treated with bovine interferon-gamma (IFN-γ), IFN-alpha (IFN-α) and IFN-tau (IFN-τ) followed by infection with N. caninum were examined by measuring the mRNA expression levels of numerous pregnancy-associated proteins and observing parasite growth to elucidate the host-parasite interaction at the uteroplacental region. N. caninum infection increased the expression of prolactin-related protein 1 (PRP1), pregnancy-associated glycoprotein 1 (PAG1), and cytokines (TNF-α, IL-8 and IL-10) in BUECs and of IL-8 in BT cells. Bovine IFN-γ inhibited IL-8 and TNF-α expression in BUECs and IL-8 in BT cells. In contrast, the expression of the interferon-stimulated gene OAS1 was significantly increased by treatment of the infected BT cells with IFN-γ. However, treatment with bovine IFNs did not inhibit N. caninum growth in either cell line. In conclusion, our results suggest that bovine IFN-γ plays a crucial role in control of pathogenesis in uterus and induction of inflammatory response in the placental region following N. caninum infection, rather than growth inhibition of the parasites.
Collapse
Affiliation(s)
- Hanan H Abdelbaky
- National Research Center for Protozoan Diseases, Obihiro University of Agriculture and Veterinary Medicine, Inada-Cho, Obihiro, Hokkaido 080-8555, Japan
| | - Naomi Shimoda
- National Research Center for Protozoan Diseases, Obihiro University of Agriculture and Veterinary Medicine, Inada-Cho, Obihiro, Hokkaido 080-8555, Japan
| | - Ihshan Akthar
- Global AgroMedicine Research Center (GAMRC), Obihiro University of Agriculture and Veterinary Medicine, Obihiro, Japan
| | - Shu Nakamura
- National Research Center for Protozoan Diseases, Obihiro University of Agriculture and Veterinary Medicine, Inada-Cho, Obihiro, Hokkaido 080-8555, Japan
| | - Md Hasibul Hasan
- National Research Center for Protozoan Diseases, Obihiro University of Agriculture and Veterinary Medicine, Inada-Cho, Obihiro, Hokkaido 080-8555, Japan
| | - Nanako Ushio
- National Research Center for Protozoan Diseases, Obihiro University of Agriculture and Veterinary Medicine, Inada-Cho, Obihiro, Hokkaido 080-8555, Japan
| | - Akio Miyamoto
- Global AgroMedicine Research Center (GAMRC), Obihiro University of Agriculture and Veterinary Medicine, Obihiro, Japan
| | - Yoshifumi Nishikawa
- National Research Center for Protozoan Diseases, Obihiro University of Agriculture and Veterinary Medicine, Inada-Cho, Obihiro, Hokkaido 080-8555, Japan.
| |
Collapse
|
2
|
Duan X, Li Z, Li M, Ma X. Analysis of controlled ovarian hyperstimulation protocols in women over 35 years old with poor ovarian response: a real-world study. BMC Pregnancy Childbirth 2023; 23:813. [PMID: 37996795 PMCID: PMC10666416 DOI: 10.1186/s12884-023-06112-4] [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: 06/07/2023] [Accepted: 11/07/2023] [Indexed: 11/25/2023] Open
Abstract
The objective of this study was to investigate the optimal controlled ovarian hyperstimulation (COH) protocol for patients aged 35 and above with poor ovarian response (POR), utilizing real-world data. This retrospective cohort study examined clinical information from a total of 4256 patients between January 2017 and November 2022. The patients were categorized into three groups: modified GnRH agonist protocol (2116 patients), GnRH antagonist protocol (1628 patients), and Mild stimulation protocol (512 patients). Comparative analysis was conducted on clinical variables and pregnancy outcomes across the three groups. The GnRH agonist protocol was associated with a higher number of oocyte number (4.02 ± 2.25 vs. 3.15 ± 1.52 vs. 2.40 ± 1.26, p < 0.001), higher number of transferable embryos (1.73 ± 1.02 vs. 1.35 ± 1.22 vs. 1.10 ± 0.86, p = 0.016), higher cumulative live birth rate 28.50(603/2116) vs. 24.94(406/1628) vs. 20.51(105/512), p < 0.001) than GnRH antagonist protocol and Mild stimulation protocol, the Mild stimulation protocol was associated with a higher miscarriage rates 16.27(62/381) vs. 16.61(48/289) vs. 32.22(29/90), p = 0.001) than the other two groups. Therefore, it can be concluded that all three protocols can be used in patients over 35 years old with poor ovarian response. However, if patients require more frozen-thawed embryo transfers to achieve better cumulative live birth rates, the modified GnRH agonist protocol may be the preferable option.
Collapse
Affiliation(s)
- Xiaoyan Duan
- Department of Gynaecology and obstetrics, The First People's Hospital of Shangqiu, 292 Kaixuan South Road, Henan, Shangqiu, People's Republic of China.
| | - Zhan Li
- Department of Gynaecology and obstetrics, The First People's Hospital of Shangqiu, 292 Kaixuan South Road, Henan, Shangqiu, People's Republic of China
| | - Mingming Li
- Graduate School of Zhengzhou University, Henan, People's Republic of China
| | - Xing Ma
- Graduate School of Zhengzhou University, Henan, People's Republic of China
| |
Collapse
|
3
|
Heshmatnia F, Jafari M, Bozorgian L, Yadollahi P, Khalajinia Z, Azizi M. Is there a relationship between assisted reproductive technology and maternal outcomes? A systematic review of cohort studies. Int J Reprod Biomed 2023; 21:861-880. [PMID: 38292514 PMCID: PMC10823119 DOI: 10.18502/ijrm.v21i11.14651] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2022] [Revised: 04/24/2023] [Accepted: 10/24/2023] [Indexed: 02/01/2024] Open
Abstract
Background: Pregnancy with assisted reproductive technology (ART) is accompanied by fetal and maternal outcomes. Objective: This systematic review aimed to assess the relationship between ART and maternal outcomes. Materials and Methods: In this systematic review, the electronic databases, including PubMed, MEDLINE, Web of Science, Scopus, Science Direct, Cochrane Library, Google Scholar, Magiran, Irandoc, and Scientific Information Database were searched for maternal outcomes reported from 2010-2021. The Newcastle-Ottawa Scale for cohort studies was used to assess the methodological quality of studies. Results: A total of 3362 studies were identified by searching the databases. After screening abstracts and full-text reviews, 19 studies assessing the singleton pregnancy-related complications of in vitro fertilization/intracytoplasmic sperm injection were included in the study. The results demonstrated that singleton pregnancies conceived through ART had higher risks of pregnancy-related complications and adverse maternal outcomes, such as vaginal bleeding, cesarean section, hypertension induced by pregnancy, pre-eclampsia, placenta previa, and premature membrane rupture than those conceived naturally. Conclusion: In conclusion, an increased risk of adverse obstetric outcomes was observed in singleton pregnancies conceived by ART. Therefore, obstetricians should consider these pregnancies as high-risk cases and should pay special attention to their pregnancy process.
Collapse
Affiliation(s)
- Fatemeh Heshmatnia
- Department of Midwifery, School of Nursing and Midwifery, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Maryam Jafari
- Department of Midwifery, School of Nursing and Midwifery, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Leila Bozorgian
- Student Research Committee, Nursing and Midwifery School, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Parvin Yadollahi
- Department of Midwifery, Maternal-Fetal Medicine Research Center, School of Nursing and Midwifery, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Zohre Khalajinia
- Department of Midwifery, School of Medicine, Qom University of Medical Sciences, Qom, Iran
| | - Marzieh Azizi
- Department of Midwifery, Sexual and Reproductive Health Research Center, Mazandaran University of Medical Sciences, Sari, Iran
| |
Collapse
|
4
|
Wojcicki J, Wawrysiuk S, Sochacki-Wojcicka N, Podlinska O, Pietrych L, Szpotanska-Sikorska M. More than a hundred thousand respondents within 48 h: How the power of social media helped to understand pregnancy loss in Poland - A retrospective population-based cohort study. Eur J Obstet Gynecol Reprod Biol 2023; 289:29-35. [PMID: 37625286 DOI: 10.1016/j.ejogrb.2023.08.008] [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: 06/05/2023] [Revised: 08/09/2023] [Accepted: 08/11/2023] [Indexed: 08/27/2023]
Abstract
BACKGROUND Miscarriage is defined as the loss of pregnancy before 20-24 weeks of gestation, and it is the most common complication of early pregnancy. The aim of the study was to determine the prevalence and risk factors of spontaneous abortion in the population of Polish females to provide a reference for clinical work. METHODS A cross-sectional self-administered on-line survey was distributed between 4th and 5th of October 2019 in the social media across Poland. A total of 100,026 recipients responded to the questionnaire and 93,636 valid respondents were included in the analyses. RESULTS Among respondents who had ever been pregnant, 31.2% reported at least one spontaneous abortion. The prevalence of miscarriage varied based on age, parity, place of residence and the education level. The first symptom of miscarriage was a vaginal bleeding (56.2%) and abdominal cramps (25.8%), while 43% of respondents had no symptoms and found out during doctor's visit. No medical assistance was required after complete spontaneous abortion in 39.2% of cases. CONCLUSIONS Miscarriage is a common complication of pregnancy, but it is not yet fully understood. The goal of future medicine is to minimize the medicalization of spontaneous abortion and excessive medical intervention by raising awareness about natural miscarriage route.
Collapse
Affiliation(s)
- Jakub Wojcicki
- Ernest Foundation - The Prenatal Medicine Foundation, Algierska 19W, 03-977 Warszawa, Poland
| | - Sara Wawrysiuk
- 2nd Department of Gynaecology, Medical University of Lublin, Jaczewskiego 8, 20-954 Lublin, Poland.
| | - Nicole Sochacki-Wojcicka
- 1st Department of Obstetrics and Gynecology, Medical University of Warsaw, pl. S. Starynkiewicza 1/3, 02-015 Warszawa, Poland
| | - Olga Podlinska
- Ernest Foundation - The Prenatal Medicine Foundation, Algierska 19W, 03-977 Warszawa, Poland
| | - Lukasz Pietrych
- Department of Econometrics and Statistics, Warsaw University of Life Sciences - SGGW, Nowoursynowska 166, 02-787 Warszawa, Poland
| | - Monika Szpotanska-Sikorska
- 1st Department of Obstetrics and Gynecology, Medical University of Warsaw, pl. S. Starynkiewicza 1/3, 02-015 Warszawa, Poland
| |
Collapse
|
5
|
Marrone M, De Luca BP, Pititto F, Grattagliano I, Laforgia N, Vimercati A, Dell'Erba A. How Much Is an Abortion Worth? Was a Human "Not Formed"? An Italian Proposal. Healthcare (Basel) 2023; 11:1948. [PMID: 37444781 DOI: 10.3390/healthcare11131948] [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: 06/13/2023] [Revised: 06/30/2023] [Accepted: 07/04/2023] [Indexed: 07/15/2023] Open
Abstract
INTRODUCTION "Human capital" is defined as an integration of innate skills and knowledge acquired by investing in the formation of an individual; it is a real "capital" that pays off in the long term. In the Italian legal system, a human being is recognised as a "person" from the moment of birth. This determines the acquisition of the personal rights of an individual. Necessarily, therefore, by law, a fetus does not own such rights; nevertheless, it has an innate "potential" to acquire such rights after birth. OBJECTIVE In Italian jurisprudence, in general, the damage from a loss of a parental relationship is justified by the condition of existential emptiness caused in the family by the loss of a child. Compensation for this damage in the event of abortion due to third-party responsibility presents a non-uniform recognition in the judgements of the Italian courts, but in any case, it is almost always recognised with limitations since the emotional relationship with the lost individual is defined only in terms of "potential". Consequently, in this matter, at least two questions can be raised: (i) Is the economic estimate of abortion based on objective and standardised criteria, or is it heavily influenced by subjective evaluation? (ii) Is it possible to find standard criteria that may act as guidelines to quantify the loss of that human capital "in progress"? METHODOLOGY The authors try to answer these questions by analysing the different approaches to this issue adopted at an international level. CONCLUSIONS In conclusion, the authors propose homogeneous criteria to quantify the damage caused by abortion.
Collapse
Affiliation(s)
- Maricla Marrone
- Interdisciplinary Department of Medicine (DIM), Section of Legal Medicine, University of Bari "Aldo Moro", 70124 Bari, Italy
| | - Benedetta Pia De Luca
- Interdisciplinary Department of Medicine (DIM), Section of Legal Medicine, University of Bari "Aldo Moro", 70124 Bari, Italy
| | - Fortunato Pititto
- Interdisciplinary Department of Medicine (DIM), Section of Legal Medicine, University of Bari "Aldo Moro", 70124 Bari, Italy
| | - Ignazio Grattagliano
- Interdisciplinary Department of Medicine (DIM), Section of Psychology, University of Bari "Aldo Moro", 70124 Bari, Italy
| | - Nicola Laforgia
- U.O.C. Neonatology and NICU Policlinico Bari, University of Bari "Aldo Moro", 70124 Bari, Italy
| | - Antonella Vimercati
- U.O.C. Gynecology and Obstetrics Policlinico Bari, University of Bari "Aldo Moro", 70124 Bari, Italy
| | - Alessandro Dell'Erba
- Interdisciplinary Department of Medicine (DIM), Section of Legal Medicine, University of Bari "Aldo Moro", 70124 Bari, Italy
| |
Collapse
|
6
|
Sadovnick D, Criscuoli M, Yee I, Carruthers R, Schabas A, Devonshire V, Smyth P. The Canadian Multiple Sclerosis Pregnancy Study: First-trimester miscarriages in women with multiple sclerosis. Mult Scler 2023; 29:407-414. [PMID: 36683353 DOI: 10.1177/13524585221146270] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
BACKGROUND There is increasing need for evidence-based data on reproduction for women with multiple sclerosis (MS). First-trimester (first 13 weeks) miscarriages are relatively common in the general population. It is therefore important to have information on the frequency with which this occurs in women with MS. METHODS The Canadian Multiple Sclerosis Pregnancy Study (CANPREG-MS) is a prospective study on women with MS who are pregnant or actively trying to conceive. As far as we are aware, this is the first study on miscarriages for this population that takes into account each woman's entire pregnancy history (i.e. before and after the MS diagnosis as well as during enrollment in CANPREG-MS). RESULTS There were 208 pregnancies during the study and 36 resulted in first-trimester miscarriage for a rate of 17.31%, within the expected range of 15%-20% for the general population. CONCLUSIONS CANPREG-MS provides real world data that there does not appear to be an increase in first-trimester miscarriages for women with MS. This information will be helpful to women with MS and their healthcare providers.
Collapse
Affiliation(s)
- Dessa Sadovnick
- Department of Medical Genetics, University of British Columbia, Vancouver, BC, Canada/Division of Neurology, Department of Medicine, University of British Columbia, Vancouver, BC, Canada
| | - Maria Criscuoli
- Department of Medical Genetics, University of British Columbia, Vancouver, BC, Canada
| | - Irene Yee
- Department of Medical Genetics, University of British Columbia, Vancouver, BC, Canada
| | - Robert Carruthers
- Division of Neurology, Department of Medicine, University of British Columbia, Vancouver, BC, Canada
| | - Alice Schabas
- Division of Neurology, Department of Medicine, University of British Columbia, Vancouver, BC, Canada
| | - Virginia Devonshire
- Division of Neurology, Department of Medicine, University of British Columbia, Vancouver, BC, Canada
| | - Penelope Smyth
- Division of Neurology, Department of Medicine, University of Alberta, Edmonton, AB, Canada
| |
Collapse
|
7
|
Zhang M, Yang BY, Sun Y, Qian Z, Xaverius PK, Aaron HE, Zhao X, Zhang Z, Liu R, Dong GH, Yin C, Yue W. Non-linear Relationship of Maternal Age With Risk of Spontaneous Abortion: A Case-Control Study in the China Birth Cohort. Front Public Health 2022; 10:933654. [PMID: 35910867 PMCID: PMC9330030 DOI: 10.3389/fpubh.2022.933654] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2022] [Accepted: 06/20/2022] [Indexed: 02/06/2023] Open
Abstract
Background Spontaneous abortion is one of the prevalent adverse reproductive outcomes, which seriously threatens maternal health around the world. Objective The current study is aimed to evaluate the association between maternal age and risk for spontaneous abortion among pregnant women in China. Methods This was a case-control study based on the China Birth Cohort, we compared 338 cases ending in spontaneous abortion with 1,352 controls resulting in normal live births. The main exposure indicator and outcome indicator were maternal age and spontaneous abortion, respectively. We used both a generalized additive model and a two-piece-wise linear model to determine the association. We further performed stratified analyses to test the robustness of the association between maternal age and spontaneous abortion in different subgroups. Results We observed a J-shaped relationship between maternal age and spontaneous abortion risk, after adjusting for multiple covariates. Further, we found that the optimal threshold age was 29.68 years old. The adjusted odds ratio (95% confidence interval) of spontaneous abortion per 1 year increase in maternal age were 0.97 (0.90–1.06) on the left side of the turning point and 1.25 (1.28–1.31) on the right side. Additionally, none of the covariates studied modified the association between maternal age and spontaneous abortion (P > 0.05). Conclusions Advanced maternal age (>30 years old) was significantly associated with increased prevalence of spontaneous abortion, supporting a J-shaped association between maternal age and spontaneous abortion.
Collapse
Affiliation(s)
- Man Zhang
- Central Laboratory, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing, China
- Beijing Maternal and Child Health Care Hospital, Beijing, China
| | - Bo-Yi Yang
- Guangzhou Key Laboratory of Environmental Pollution and Health Risk Assessment, Guangdong Provincial Engineering Technology Research Center of Environmental and Health Risk Assessment, Department of Preventive Medicine, School of Public Health, Sun Yat-sen University, Guangzhou, China
| | - Yongqing Sun
- Beijing Maternal and Child Health Care Hospital, Beijing, China
- Prenatal Diagnosis Center, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing, China
| | - Zhengmin Qian
- Department of Epidemiology and Biostatistics, College for Public Health and Social Justice, Saint Louis University, Saint Louis, MO, United States
| | - Pamela K. Xaverius
- Department of Epidemiology and Biostatistics, College for Public Health and Social Justice, Saint Louis University, Saint Louis, MO, United States
| | - Hannah E. Aaron
- Department of Epidemiology and Biostatistics, College for Public Health and Social Justice, Saint Louis University, Saint Louis, MO, United States
| | - Xiaoting Zhao
- Central Laboratory, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing, China
- Beijing Maternal and Child Health Care Hospital, Beijing, China
| | - Zheng Zhang
- Beijing Maternal and Child Health Care Hospital, Beijing, China
- Prenatal Diagnosis Center, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing, China
| | - Ruixia Liu
- Central Laboratory, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing, China
- Beijing Maternal and Child Health Care Hospital, Beijing, China
- *Correspondence: Ruixia Liu
| | - Guang-Hui Dong
- Guangzhou Key Laboratory of Environmental Pollution and Health Risk Assessment, Guangdong Provincial Engineering Technology Research Center of Environmental and Health Risk Assessment, Department of Preventive Medicine, School of Public Health, Sun Yat-sen University, Guangzhou, China
- Guang-Hui Dong
| | - Chenghong Yin
- Beijing Maternal and Child Health Care Hospital, Beijing, China
- Prenatal Diagnosis Center, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing, China
- Chenghong Yin
| | - Wentao Yue
- Central Laboratory, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing, China
- Beijing Maternal and Child Health Care Hospital, Beijing, China
- Wentao Yue
| |
Collapse
|
8
|
Chen S, Xue X, Zhang Y, Zhang H, Huang X, Chen X, Deng G, Luo S, Gao J. Vaginal Atopobium is Associated with Spontaneous Abortion in the First Trimester: a Prospective Cohort Study in China. Microbiol Spectr 2022; 10:e0203921. [PMID: 35311570 PMCID: PMC9045190 DOI: 10.1128/spectrum.02039-21] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Accepted: 01/14/2022] [Indexed: 11/20/2022] Open
Abstract
Spontaneous abortion (SA) has received more and more attention in light of its increasing incidence. However, the causes and pathogenesis of SA remain largely unknown, especially for those without any pathological features. In this study, we characterized the vaginal microbiota diversity and composition of pregnant women in their first trimester and evaluated the association between the vaginal microbiota and SA before 12 weeks of gestation. Participants' bacterial profiles were analyzed by 16S rRNA gene sequencing in the V3-V4 regions at 5-8 weeks of gestation. A total of 48 patients with SA at 12 weeks of gestation were included as the study group, while 116 women with normal pregnancies (NPs) were included as a control group. The results indicated that the richness of the vaginal microbiome in SA patients was higher (Chao1, P < 0.05) and different in composition relative to that of women with NPs (unweighted UniFrac, R = 0.15, P < 0.01; binary Jaccard, R = 0.15, P < 0.01). Furthermore, the genus Apotobium was significantly enriched in SA patients. An extreme gradient-boosting (XGBoost) analysis was able to classify Atopobium-induced SA more reliably (area under the receiver operating characteristic curve, 0.69; threshold, 0.01%). Moreover, after adjusting for potential confounders, the results showed a robust association between Apotobium and SA (as a categorical variable [<0.01%]; adjusted odds ratio, 2.9; 95% confidence interval, 1.3 to 6.5; P = 0.01). In conclusion, higher vaginal Apotobium levels were associated with SA in the first trimester. IMPORTANCE Spontaneous abortion (SA) is the most common adverse pregnancy outcome in the first trimester. The causal drivers of SA have become a substantial challenge to reveal and overcome. We hypothesize that vaginal microbial dysbiosis is associated with SA, as it was related to several female reproductive disorders in previous studies. In our study, we characterized the vaginal microbiota of patients with SA at 12 weeks of gestation as the study group, and women with normal pregnancies were enrolled as a control group. Generally, significant differences were discovered in the vaginal microbiota between the two groups. Our study also revealed that Apotobium may play an important role in the pathogenesis of SA. To our knowledge, this study is the first detailed elaboration of the vaginal microbiota composition and vaginal Apotobium in association with SA. We believe that our findings will inspire more researchers to consider dynamic changes in the vaginal microbiota as critical features for further studies of nosogenesis not only for SA but also other reproductive diseases.
Collapse
Affiliation(s)
- Si Chen
- The First Clinical College, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, China
- Lingnan Medical Research Center of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, China
| | - Xiaomeng Xue
- The First Clinical College, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, China
- Lingnan Medical Research Center of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, China
| | - Yingxuan Zhang
- The First Clinical College, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, China
- Lingnan Medical Research Center of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, China
| | - Huimin Zhang
- The First Clinical College, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, China
- Lingnan Medical Research Center of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, China
| | - Xuge Huang
- The First Clinical College, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, China
- Lingnan Medical Research Center of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, China
| | - Xiaofeng Chen
- The First Clinical College, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, China
- Lingnan Medical Research Center of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, China
| | - Gaopi Deng
- Department of Gynecology, The First Affiliated Hospital of Guangzhou University of Chinese, Guangzhou, Guangdong China
| | - Songping Luo
- Department of Gynecology, The First Affiliated Hospital of Guangzhou University of Chinese, Guangzhou, Guangdong China
| | - Jie Gao
- Department of Gynecology, The First Affiliated Hospital of Guangzhou University of Chinese, Guangzhou, Guangdong China
| |
Collapse
|
9
|
Shuai J, Chen QL, Chen WH, Liu WW, Huang GN, Ye H. Early Spontaneous Abortion in Fresh- and Frozen-Embryo Transfers: An Analysis of Over 35,000 Transfer Cycles. Front Endocrinol (Lausanne) 2022; 13:875798. [PMID: 35832421 PMCID: PMC9271787 DOI: 10.3389/fendo.2022.875798] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Accepted: 05/25/2022] [Indexed: 11/25/2022] Open
Abstract
BACKGROUND The aim of this study was to explore the risk factors for early spontaneous abortion (ESA) in fresh- and frozen-embryo transfers. METHODS This retrospective cohort study comprised a total of 35,076 patients, including 15,557 women in the fresh-embryo transfer group and 19,519 women in the frozen-embryo transfer group from January 2016 to December 2020. The primary outcome of this study was ESA, which we defined as the termination of embryonic development before 12 weeks of pregnancy (i.e., an early abortion after artificial multi-fetal pregnancy reduction was excluded). RESULTS In the 35,076 ART transfer cycles, the incidence of ESA was 5.77% (2023/35,076), and the incidence rates for ESA in fresh and frozen cycles were 4.93% (767 of 15,557) and 6.43% (1,256 of 19,519), respectively. Using a multivariate logistic regression analysis model, maternal age, body mass index (BMI), and number of embryos transferred were independent predictors for ESA. In addition, frozen-thawed transfer was a risk factor for ESA as compared with fresh transfer (OR = 1.207; 95% CI, 1.094-1.331; P = 0.000), blastocyst transfer was risk factor for ESA as compared with cleavage transfer (OR =1.373; 95% CI, 1.186-1.591; P = 0.000 in the total group; OR = 1.291; 95% CI, 1.111-1.499; P = 0.001 in the frozen-transfer group), and unexplained infertility was a protective factor for ESA only in the frozen group (OR = 0.746; 95% CI, 0.565-0.984; P = 0.038). CONCLUSIONS Maternal age, BMI, number of embryos transferred, and frozen-thawed transfer were independent risk factors for ESA in assisted reproductive technology treatment cycles.
Collapse
|