1.Efficacy of heat-sensitive moxibustion combined with western medication for preconception intervention in prethrombotic state of recurrent spontaneous abortion with kidney deficiency and blood stasis.
Lili SUN ; Zixue SUN ; Pengchao LI
Chinese Acupuncture & Moxibustion 2025;45(9):1253-1258
OBJECTIVE:
To observe the clinical efficacy of heat-sensitive moxibustion combined with western medication for preconception intervention in prethrombotic state of recurrent spontaneous abortion (RSA) with kidney deficiency and blood stasis.
METHODS:
A total of 100 RSA patients of prethrombotic state with kidney deficiency and blood stasis were randomized into a combination group (50 cases, 5 cases were eliminated) and a medication group (50 cases, 5 cases were eliminated). In the medication group, the aspirin enteric-coated tablet was given orally at a dose of 75 mg a time, once daily. On the basis of the treatment in the medication group, in the combination group, heat-sensitive moxibustion was applied at the heat-sensitive points selected among the areas of Guanyuan (CV4), Shenque (CV8), and bilateral Sanyinjiao (SP6), Zusanli (ST36), Qihai (CV6), Taixi (KI3), Zigong (EX-CA1), Luanchao (Extra), Xuehai (SP10), and Yinlingquan (SP9), about 40 min a time, once every two days. Both groups were treated for 3 menstrual cycles continuously. Pregnancy success rate of 12 weeks was recorded in the two groups in follow-up of 3 months after treatment completion, during which conception was tried under the guidance of doctor. The TCM symptom score was observed and the coagulation-fibrinolysis indexes (activated partial thromboplastin time [APTT], prothrombin time [PT], platelet count [PLT], D-dimer [D-D], fibrinogen [FIB], protein S [PS], protein C [PC] and antithrombin Ⅲ [AT-Ⅲ]) were detected before and after treatment in the two groups.
RESULTS:
The pregnancy success rate of 12 weeks was 80.0% (32/40) in the combination group, which was higher than 54.3% (19/35) in the medication group (P<0.05). After treatment, the TCM symptom scores were decreased compared with those before treatment in the two groups (P<0.05), and the TCM symptom score in the combination group was lower than that in the medication group (P<0.05). Compared before treatment, the APTT and PT was prolonged (P<0.05), the levels of PLT, FIB and D-D were reduced (P<0.05), the activity of AT-Ⅲ, PS and PC was increased (P<0.05) after treatment in the two groups. After treatment, in the combination group, the APTT was longer (P<0.05), the levels of PLT, FIB and D-D were lower (P<0.05), the activity of AT-Ⅲ, PS and PC was higher (P<0.05) than those in the medication group.
CONCLUSION
Heat-sensitive moxibustion combined with western medication can effectively improve the prethrombotic state and TCM clinical symptoms in RSA patients with kidney deficiency and blood stasis, enhance pregnancy success rate, its mechanism may be related to ameliorating hypercoagulability.
Humans
;
Female
;
Moxibustion
;
Adult
;
Pregnancy
;
Abortion, Habitual/blood*
;
Young Adult
;
Combined Modality Therapy
;
Kidney/drug effects*
;
Acupuncture Points
;
Aspirin/administration & dosage*
2.The high expression of decorin in decidua of patients with missed abortion and inhibitory mechanism of decorin on the M1 macrophages polarization derived from peripheral blood mononuclear cells.
Chinese Journal of Cellular and Molecular Immunology 2025;41(8):724-734
Objective To explore the alterations in macrophage polarization and the expression of decorin (DCN) protein in the decidua of patients with missed abortion (MA), as well as to elucidate the regulatory effect of DCN on macrophage polarization. Methods Flow cytometry was employed to assess the polarization ratio of decidual macrophages in MA, recurrent spontaneous abortion (RSA) and normal pregnancy (NP); The expression and localization of DCN and hypoxia-inducible factor 1α (HIF-1α) in decidua and villi were assessed by immunohistochemistry staining, while their protein levels were measured by Western blot. Primary trophoblasts and peripheral blood mononuclear cell (PBMC)-derived macrophages were isolated and cultured. ELISA was conducted to quantify DCN levels in the culture supernatant of primary trophoblast and PBMC-derived macrophages. Additionally, flow cytometry was applied to evaluate the polarization ratio of PBMC-derived macrophages. Immunofluorescence cytochemical staining was conducted to examine HIF-1α expression in macrophages. Western blot was performed to detect the expression of proteins related to the gene associated with retinoid-IFN-induced mortality 19 (GRIM-19)/signal transducer and activator of transcription 3 (STAT3)/HIF-1α signaling pathway in macrophages. Results The polarization ratio of M1 macrophages in the decidua of abortion patients was significantly higher than that of NP, whereas the ratio of M2 macrophages was significantly lower. The expression of DCN and HIF-1α protein were significantly evaluated in abortion patients compared to NP. The supernatant DCN content and HIF-1α protein expression of primary trophoblast and PBMC-derived macrophages cultured under 10 mL/L O2 for 24 hours were markedly increased compared to cells treated with 210 mL/L O2. Compared with the PBS group, the proportion of M1 macrophage and GRIM-19 protein expression were significantly reduced in the DCN group, while phosphorylated STAT3 (p-STAT3) and HIF-1α protein expression were significantly increased. Conclusion The expression of DCN in decidua and villi of MA is higher than that of NP. DCN exhibits an inhibitory effect on the M1 polarization of PBMCs-derived macrophages, which is likely mediated through the GRIM-19/STAT3/HIF-1α signaling pathway.
Humans
;
Female
;
Decidua/metabolism*
;
Macrophages/cytology*
;
Decorin/genetics*
;
Pregnancy
;
Hypoxia-Inducible Factor 1, alpha Subunit/metabolism*
;
Adult
;
Leukocytes, Mononuclear/cytology*
;
Abortion, Missed/genetics*
;
STAT3 Transcription Factor/metabolism*
;
Cells, Cultured
;
Young Adult
3.Recurrent spontaneous miscarriages from sperm after ABVD chemotherapy in a patient with Hodgkin's lymphoma: sperm DNA and methylation profiling.
Gwendoline LECUYER ; Antoine D ROLLAND ; Anne-Sophie NEYROUD ; Bertrand EVRARD ; Nathan ALARY ; Clemence GENTHON ; Nathalie DEJUCQ-RAINSFORD ; Célia RAVEL ; Jessika MOREAU ; Nathalie MOINARD ; Mohamed Hadi Mohamed ABDELHAMID ; Christophe KLOPP ; Louis BUJAN ; Frédéric CHALMEL
Asian Journal of Andrology 2025;27(5):598-610
Lymphomas represent one of the most common malignant diseases in young men and an important issue is how treatments will affect their reproductive health. It has been hypothesized that chemotherapies, similarly to environmental chemicals, may alter the spermatogenic epigenome. Here, we report the genomic and epigenomic profiling of the sperm DNA from a 31-year-old Hodgkin lymphoma patient who faced recurrent spontaneous miscarriages in his couple 11-26 months after receiving chemotherapy with adriamycin, bleomycin, vinblastine, and dacarbazine (ABVD). In order to capture the potential deleterious impact of the ABVD treatment on mutational and methylation changes, we compared sperm DNA before and 26 months after chemotherapy with whole-genome sequencing (WGS) and reduced representation bisulfite sequencing (RRBS). The WGS analysis identified 403 variants following ABVD treatment, including 28 linked to genes crucial for embryogenesis. However, none were found in coding regions, indicating no impact of chemotherapy on protein function. The RRBS analysis identified 99 high-quality differentially methylated regions (hqDMRs) for which methylation status changed upon chemotherapy. Those hqDRMs were associated with 87 differentially methylated genes, among which 14 are known to be important or expressed during embryo development. While no variants were detected in coding regions, promoter regions of several genes potentially important for embryo development contained variants or displayed an altered methylated status. These might in turn modify the corresponding gene expression and thus affect their function during key stages of embryogenesis, leading to potential developmental disorders or miscarriages.
Humans
;
Male
;
Hodgkin Disease/drug therapy*
;
Adult
;
DNA Methylation/drug effects*
;
Bleomycin/therapeutic use*
;
Spermatozoa/metabolism*
;
Vinblastine/therapeutic use*
;
Antineoplastic Combined Chemotherapy Protocols/therapeutic use*
;
Abortion, Habitual/genetics*
;
Doxorubicin/therapeutic use*
;
Dacarbazine/therapeutic use*
;
Female
;
Pregnancy
4.Association between spontaneous abortion and chromosomal abnormalities of products of conception from spontaneous and ART-conceived pregnancies.
Xu JIANG ; Di YAO ; Ye SHEN ; Lingcen GUO ; Hehua TAO ; Xin ZHAO ; Lan YANG
Journal of Central South University(Medical Sciences) 2025;50(1):36-44
OBJECTIVES:
Chromosomal abnormalities are the most common cause of spontaneous abortion (SA). This study aims to analyze the association between SA and chromosomal abnormalities in products of conception, and to compare the impact of different pregnancy modes and different numbers of previous abortions on chromosomal abnormalities, providing clinical consulting references.
METHODS:
A total of 1 345 SA patients treated at the Affiliated Women's Hospital of Jiangnan University (Wuxi Maternity and Child Health Care Hospital) between January 2019 and December 2023 were enrolled. According to the mode of conception, patients were divided into 2 groups: a spontaneous pregnancy group (S group, n=1242) and an assisted reproductive technology (ART)-conceived group (ART group, n=103). Based on the number of miscarriages, the S group was further subdivided into a spontaneous sporadic abortion group (S-1 group, n=780) and a spontaneous recurrent abortion group (S-2 group, n=462); the ART group was subdivided into an ART sporadic abortion group (ART-1 group, n=68) and an ART recurrent abortion group (ART-2 group, n=35). Chromosomal microarray analysis (CMA) was performed on products of conception.
RESULTS:
The incidence of numerical chromosomal abnormalities was 56.79% (443/780) in the S-1 group and 52.38% (242/462) in the S-2 group, while the incidence of structural abnormalities was 4.36% (34/780) and 7.36% (34/462), respectively. There was a statistically significant difference in structural abnormalities between the 2 groups (P<0.05). Among the spontaneous pregnancy SA cases, the incidence of numerical abnormalities decreased with increasing numbers of miscarriages, and was significantly lower in the group with ≥4 miscarriages compared to those with 1 or 2 miscarriages (both P<0.05). The incidence of structural abnormalities in groups with 1, 2, 3, and ≥4 miscarriages was 3.46%, 5.65%, 5.88%, and 4.35%, respectively, with no statistically significant differences among groups (all P>0.05). The incidence of pathogenic copy number variants (pCNVs) plus likely pathogenic copy number variants (LP-CNVs) gradually increases in the group with 1-3 miscarriages, and there was a statistically significant difference between the group with 1 miscarriage and the group with 2 miscarriages (P<0.05). In the ART group, the incidence of numerical abnormalities was 47.06% (32/68) in ART-1 and 37.14% (13/35) in ART-2, while structural abnormalities occurred in 2.94% (2/68) and 11.43% (4/35), respectively, with no significant differences between the groups (both P>0.05). There were no statistically significant differences in the incidence of numerical or structural abnormalities between the S-1 and ART-1 groups, or between the S-2 and ART-2 groups (all P>0.05).
CONCLUSIONS
Chromosomal numerical and structural abnormalities are common in SA patients from both spontaneous and ART-conceived pregnancies. Attention should be paid to patients with recurrent miscarriage in genetic investigation.
Humans
;
Female
;
Pregnancy
;
Chromosome Aberrations/statistics & numerical data*
;
Abortion, Spontaneous/epidemiology*
;
Adult
;
Reproductive Techniques, Assisted/adverse effects*
;
Abortion, Habitual/genetics*
;
Fertilization
5.RRS1 regulates proliferation, migration, and invasion of HTR-8/SVneo human trophoblasts.
Yixuan WU ; Yao LI ; Jing WANG ; Qianying GUO ; Wei CHEN ; Jie QIAO ; Liying YAN ; Peng YUAN
Frontiers of Medicine 2025;19(5):831-841
Trophoblast cells serve as the foundation for placental development. We analyzed published multiomics sequencing data and found that trophoblast cells highly expressed RRS1 compared to primitive endoderm and epiblast. We used HTR-8/SVneo cells for further investigation, and Western blot and immunofluorescence staining confirmed that HTR-8/SVneo cells highly expressed RRS1. RRS1 was successfully knocked down in HTR-8/SVneo cells using siRNA. Using IncuCyte S3 live-cell analysis system based on continuous live-cell imaging and real-time data, we observed that proliferation, migration, and invasion abilities were all significantly decreased in RRS1-knockdown cells. RNA-seq revealed that knockdown of RRS1 affected the gene transcription, and upregulated pathways in extracellular matrix organization, DNA damage response, and intrinsic apoptotic signaling, downregulated pathways in embryo implantation, trophoblast cell migration, and wound healing. Differentially expressed genes were enriched in diseases related to placental development. Consistent with these findings, human chorionic villus samples collected from spontaneous abortion cases exhibited significantly reduced RRS1 expression compared to normal controls. Our results highlight the functional importance of RRS1 in human trophoblasts and suggest that its deficiency contributes to early pregnancy loss.
Humans
;
Trophoblasts/physiology*
;
Cell Movement/genetics*
;
Cell Proliferation/genetics*
;
Female
;
Pregnancy
;
Abortion, Spontaneous/metabolism*
;
Cell Line
;
Placentation/genetics*
6.Rudimentary horn pregnancy: clinical analysis of 12 cases and literature review.
Ming Mei LIN ; Yi Meng GE ; Shuo YANG ; Rui YANG ; Rong LI
Chinese Journal of Obstetrics and Gynecology 2024;59(1):49-55
Objective: To investigate the clinical characteristics, treatments and fertility recovery of rudimentary horn pregnancy (RHP). Methods: The clinical data of 12 cases with RHP diagnosed and treated in Peking University Third Hospital from January 1, 2010 to December 31, 2022 were retrospectively analyzed. Clinical informations, diagnosis and treatments of RHP and the pregnancy status after surgery were analyzed. Results: The median age of 12 RHP patients was 29 years (range: 24-37 years). Eight cases of pregnancy in residual horn of uterus occurred in type Ⅰ residual horn of uterus, 4 cases occurred in type Ⅱ residual horn of uterus; among which 5 cases were misdiagnosed by ultrasound before surgery. All patients underwent excision of residual horn of uterus and affected salpingectomy. After surgery, 9 patients expected future pregnancy, and 3 cases of natural pregnancy, 2 cases of successful pregnancy through assisted reproductive technology. Four pregnancies resulted in live birth with cesarean section, and 1 case resulted in spontaneous abortion during the first trimester of pregnancy. No uterine rupture or ectopic pregnancy occurred in subsequent pregnancies. Conclusions: Ultrasonography could aid early diagnosis of RHP while misdiagnosis occurred in certain cases. Thus, a comprehensive judgment and decision ought to be made based on medical history, physical examination and assisted examination. Surgical exploration is necessary for diagnosis and treatment of RHP. For infertile patients, assisted reproductive technology should be applied when necessary. Caution to prevent the occurrence of pregnancy complications such as uterine rupture, and application of cesarean section to terminate pregnancy are recommended.
Pregnancy
;
Humans
;
Female
;
Young Adult
;
Adult
;
Cesarean Section/adverse effects*
;
Retrospective Studies
;
Pregnancy, Ectopic/surgery*
;
Pregnancy, Cornual/surgery*
;
Uterus/surgery*
;
Uterine Rupture/etiology*
;
Abortion, Spontaneous
7.Analysis of a Chinese pedigree affected with Meckel syndrome due to variants of TMEM67 gene.
Ganye ZHAO ; Xiaoyan ZHAO ; Xuechao ZHAO ; Conghui WANG ; Zhihui JIAO ; Qianqian LI ; Xiangdong KONG
Chinese Journal of Medical Genetics 2023;40(10):1236-1240
OBJECTIVE:
To explore the genetic etiology for a Chinese pedigree affected with Meckel syndrome.
METHODS:
A pedigree with a history of three consecutive adverse pregnancies which presented at the First Affiliated Hospital of Zhengzhou University on August 31, 2017 was selected as the study subject. Clinical data of the pedigree were collected. High-throughput sequencing was carried out to screen for variants of ciliopathy-related genes in the third fetus following induced abortion, and candidate variant was verified by Sanger sequencing.
RESULTS:
The first pregnancy of the couple had ended as spontaneous abortion, whilst the fetus of the second pregnancy was suspected for having ciliopathy, though no genetic testing was carried out following elected abortion. The fetus of the third pregnancy was suspected for having ciliopathy, and high-throughput sequencing and Sanger sequencing had shown that the fetus had harbored compound heterozygous variants of the TMEM67 gene, including c.978+1G>A from the father and c.1288G>C (p.D430H) from the mother. Based on the guidelines from the American College of Medical Genetics and Genomics (ACMG), the c.978+1G>A was classified as a pathogenic variant (PVS1+PM2_Supporting+PP5), whilst the newly discovered c.1288G>C (p.D430H) was classified as a likely pathogenic variant (PM2_Supporting+PM3+PM5+PP3).
CONCLUSION
The c.978+1G>A and c.1288G>C (p.D430H) compound heterozygous variants of the TMEM67 gene probably underlay the three consecutive adverse pregnancies suspected for ciliopathy in this pedigree. The discovery of c.1288G>C (p.D430H) has also expanded the mutational spectrum of the TMEM67 gene.
Female
;
Pregnancy
;
Humans
;
Pedigree
;
East Asian People
;
Ciliary Motility Disorders/genetics*
;
Ciliopathies
;
Abortion, Spontaneous
;
Membrane Proteins/genetics*
8.Pregnancy Benefit of Acupuncture on in vitro Fertilization: A Systematic Review and Meta-Analysis.
Hao-Ran ZHANG ; Cheng ZHANG ; Pei-Hong MA ; Cheng-Yi SUN ; Chong-Yang SUN ; Xiao-Yu LIU ; Zhen-Qing PU ; Yu-Han LIN ; Bao-Yan LIU ; Cun-Zhi LIU ; Shi-Yan YAN
Chinese journal of integrative medicine 2023;29(11):1021-1032
BACKGROUND:
Currently, more and more infertility couples are opting for combined acupuncture to improve success rate of in vitro fertilization (IVF). However, evidence from acupuncture for improving IVF pregnancy outcomes remains a matter of debate.
OBJECTIVE:
To quantitatively summarized the evidence of the efficacy of acupuncture among women undergoing IVF by means of systematic review and meta-analysis.
METHODS:
Four English (PubMed, Web of Science, EMBASE, and Cochrane Register of Controlled Clinical Trials) and Four Chinese databases (Wanfang Databases, Chinese National Knowledge Infrastructure, Chinese Science and Technology Periodical Database, and SinoMed) were searched from database inception until July 2, 2023. Randomized controlled trials (RCTs) that evaluated the acupuncture's effects for women undergoing IVF were included. The subgroup analysis was conducted with respect to the age of participants, different acupuncture types, type of control, acupuncture timing, geographical origin of the study, whether or not repeated IVF failure, and acupuncture sessions. Sensitivity analyses were predefifined to explore the robustness of results. The primary outcomes were clinical pregnancy rate (CPR) and live birth rate (LBR), and the secondary outcomes were ongoing pregnancy rate and miscarriage rate. Random effects model with I2 statistics were used to quantify heterogeneity. Publication bias was estimated by funnel plots and Egger's tests.
RESULTS:
A total of 58 eligible RCTs representing 10,968 women undergoing IVF for pregnant success were identifified. Pooled CPR and LBR showed a signifificant difference between acupuncture and control groups [69 comparisons, relative risk (RR) 1.19, 95% confifidence intervals (CI) 1.12 to 1.25, I2=0], extremely low evidence; 23 comparisons, RR 1.11, 95%CI 1.02 to 1.21, I2=14.6, low evidence, respectively). Only transcutaneous electrical acupoint stimulation showed a positive effect on both CPR (16 comparisons, RR 1.17, 95%CI 1.06 to 1.29; I2=0, moderate evidence) and LBR (9 comparisons, RR 1.20, 95%CI 1.04 to 1.37; I2=8.5, extremely low evidence). Heterogeneity across studies was found and no studies were graded as high-quality evidence.
CONCLUSION
Results showed that the convincing evidence levels on the associations between acupuncture and IVF pregnant outcomes were relatively low, and the varied methodological design and heterogeneity might inflfluence the fifindings. (Registration No. PROSPERO CRD42021232430).
Pregnancy
;
Female
;
Humans
;
Live Birth
;
Fertilization in Vitro/methods*
;
Pregnancy Outcome
;
Abortion, Spontaneous
;
Acupuncture Therapy
9.Clinical study of modified Shirodkar transvaginal cervical cerclage during pregnancy in the treatment of cervical insufficiency.
Mei Ying SONG ; Fu Chuan WANG ; Xiao Yu LI ; Yu Huan LIU
Chinese Journal of Obstetrics and Gynecology 2023;58(11):811-817
Objective: To investigate the clinical efficacy of modified Shirodkar transvaginal cervical cerclage (TVCC) in the treatment of cervical insufficiency (CI) and its impact on maternal and fetal outcomes. Methods: The clinical data of 218 pregnant women with CI admitted to Fu Xing Hospital, Capital Medical University from January 1, 2015 to August 31, 2021 was retrospectively analyzed. According to different surgical approaches, they were divided into modified Shirodkar TVCC treatment during pregnancy (TVCC group, 108 cases) and non-pregnant women underwent laparoscopic cervical cerclage (LACC) treatment (LACC group, 110 cases). The clinical data and pregnancy outcomes of the two groups were compared. Furthermore, the two groups of pregnant women were stratified according to cervical length (CL) to explore the effects of the two surgical methods on the pregnancy outcomes of CI women with different CL. Results: (1) Related indicators before and during cerclage: there were no complications such as massive hemorrhage, bladder injury and anesthesia accident in the two groups of pregnant women during cerclage. Compared with the LACC group, TVCC group had longer preoperative CL [(2.3±0.6) vs (2.7±0.6) cm], more intraoperative blood loss [(7.5±0.5) vs (14.4±1.4) ml] and longer hospital stay [(6.0±0.1) vs (7.3±0.4) day]. However, the operation time was shorter [(42.9±1.6) vs (25.9±1.4) minute] and the hospitalization cost was less [(9 912±120) vs (5 598±140) yuan], and the differences were statistically significant (all P<0.05). (2) Pregnancy outcomes: live birth rates were 95.4% (103/108) in the TVCC group and 96.4% (106/110) in the LACC group, showing no significant difference between the two groups (χ2=2.211, P=0.232). The preterm birth rate (12.0%, 13/108) in the TVCC group was higher than that in the LACC group (7.3%, 8/110), the neonatal birth weight was lower than that in the LACC group [(3 006±96) vs (3 225±42) g], and the proportion of low birth weight infants was higher than that in the LACC group [15.5% (16/103) vs 1.9% (2/106)], and the differences were statistically significant (all P<0.05). (3) Stratified analysis of CL: for pregnant women with CL<2.0 cm, the miscarriage rate of the TVCC group was higher than that of the LACC group (2/9 vs 3.0%), and the live birth rate was lower than that of the LACC group (7/9 vs 97.0%), and the differences were statistically significant (all P<0.05). For CL 2.0-<2.5 cm, 2.5-<3.0 cm, CL≥3.0 cm, there were no statistically significant differences in preterm birth rate and live birth rate between the two groups (all P>0.05). Conclusions: Modified Shirodkar TVCC is simple and easy to operate, which significantly reduces the cesarean section rate and medical cost compared with LACC, and there is no significant difference in the live birth rate. When there is inevitable late abortion, laparoscopic cerclage removal does not need to be performed again, which could reduce the second operation and is worthy of clinical application.
Infant, Newborn
;
Pregnancy
;
Infant
;
Female
;
Humans
;
Cerclage, Cervical
;
Cesarean Section
;
Premature Birth/prevention & control*
;
Retrospective Studies
;
Abortion, Spontaneous
10.Interaction of polycyclic aromatic hydrocarbon DNA adducts and telomere length on missed abortion.
Mei HAN ; Sha LIU ; Jing Ru JI ; Yan Fei WU ; Ke Wei CHANG ; Jia Yu ZHANG ; Jun Ni WEI
Chinese Journal of Preventive Medicine 2023;57(2):193-199
Objective: To analyze the contribution and interaction of polycyclic aromatic hydrocarbons (PAH)-DNA adducts and changes of telomere length (TL) on missed abortion. Methods: From March to December 2019, patients with missed abortion in the First Hospital of Shanxi Medical University and pregnant women with normal pregnancy but voluntary abortion in the same department during the same period were selected and divided into a case group and a control group. Questionnaire was used to investigate the general situation and the pregnancy situation of the subjects. The abortion villi were collected and the content of PAH-DNA adducts and TL was detected. Logistic regression model was used to analyze the associated factors of missed abortion. R epiR package and Mediation package were used to analyze the effect and relationship between PAH-DNA adducts and TL on missed abortion. Results: The age of the subjects was(29.92±5.69)years old. The M(Q1,Q3)of PAH-DNA adducts was 453.75(404.61, 504.72) pg/ml. The M(Q1,Q3)of TL was 1.21(0.77, 1.72). The content of PAH-DNA adducts in the case group was higher than that in the control group (Z=-2.10, P=0.036), while the TL was lower than that in the control group (Z=-4.05, P<0.001). Multivariate logistic regression showed that low, medium and high levels of PAH-DNA adducts (OR=3.17,95%CI:1.41-7.14;OR=2.85,95%CI:1.25-6.52;OR=2.46,95%CI:1.07-5.64), and long, medium and short levels of TL (OR=2.50,95%CI:1.11-5.63;OR=3.32,95%CI:1.45-7.56;OR=3.22,95%CI:1.42-7.26) were all risk factors for missed abortion. The medium level of PAH-DNA adducts had a 2.76-fold higher risk of shortened TL than those with the lowest level, and no mediating role of TL was found. The stratified analysis showed that when the TL level was longer (>1.21), the low and high levels of PAH-DNA adducts were associated with missed abortion (all P<0.05); when the TL level was shorter (<1.21), the medium level of PAH-DNA adducts was associated with abortion (P=0.025). At lower levels of PAH-DNA adducts, no effect of TL on missed abortion was observed, while, at higher levels, TL was strongly associated with missed abortion (OR=7.50,95%CI:1.95-28.82;OR=6.04,95%CI:1.54-23.65;OR=9.05,95%CI:2.34-35.04). The interaction analysis found that the AP was 0.72 (95%CI: 0.46-0.99), and the SI was 5.21 (95%CI: 2.30-11.77). Conclusion: The high level of PAH-DNA adducts and shortened TL may increase the risk of missed abortion, and there may be a positive additive interaction between the two factors on missed abortion.
Humans
;
Female
;
Pregnancy
;
Young Adult
;
Adult
;
DNA Adducts
;
Abortion, Missed/chemically induced*
;
Polycyclic Aromatic Hydrocarbons
;
Abortion, Spontaneous/chemically induced*
;
Telomere/chemistry*

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