Immunohistochemical analysis of TNF-α and HSP-60 in women with tubal factor infertility associated withChlamydia trachomatis

Author(s):  
Zhao Haizhen ◽  
Li Hongfa
2020 ◽  
Vol 20 (1) ◽  
Author(s):  
Jiacong Yan ◽  
Chengbo Liu ◽  
Han Zhao ◽  
Chunyan Wang ◽  
Huimei Yao ◽  
...  

Abstract Background This cross-sectional study aimed to evaluate the levels of tumor necrosis factor-alpha (TNF-ɑ), interleukin-8 (IL-8), interleukin-6 (IL-6), and transforming growth factor-beta 1 (TGF-β1) in patients with primary and secondary tubal factor infertility (TFI) compared with fertile subjects, and to compare immune indexes in the serum and peritoneal fluid samples obtained from patients with TFI. Methods The pelvic fluid and peripheral blood of patients with TFI diagnosed by hysteroscopy and laparoscopy were taken as the study objects. The pelvic fluid and peripheral blood of patients who underwent hysteromyomectomy at the same time were taken as the control group. The contents of TNF-ɑ, IL-8, IL-6, and TGF-β1 in serum and peritoneal fluid were determined by enzyme-linked immunosorbent assay, and the levels of these cytokines in serum and pelvic fluid were compared between the two groups. Results Patients with secondary TFI showed significantly higher levels of TNF-ɑ, IL-8, IL-6 and TGF-β1 in the serum (26.15 ± 3.51 vs. 19.61 ± 0.157, 32.18 ± 15.13 vs. 5.73 ± 1.99, 38.84 ± 3.46 vs. 30.48 ± 0.61, and 38.37 ± 3.14 vs. 32.25 ± 1.69, respectively) and peritoneal fluid samples (129.73 ± 183.4 vs. 34.63 ± 0.56, 111.44 ± 207.42 vs. 15.34 ± 0.41, 80.01 ± 109.91 vs. 15.67 ± 0.52, and 82.54 ± 115.99 vs. 45.34 ± 0.41, respectively) compared with the control group. Patients with primary TFI exhibited significantly elevated concentration of TNF-α, IL-8, IL-6 and TGF-β1 in the peritoneal fluid samples (36.88 ± 2.67 vs. 34.63 ± 0.56, 19.47 ± 3.51 vs. 15.34 ± 0.41, 80.01 ± 109.91 vs. 15.67 ± 0.52, and 82.54 ± 115.99 vs. 45.34 ± 0.41, respectively) when compared to the controls. In patients with secondary infertility, the levels of TNF-α (26.15 ± 3.51 vs. 129.73 ± 183.4), IL-8 (32.18 ± 15.13 vs. 111.44 ± 207.42), IL-6 (38.84 ± 3.46 vs. 80.01 ± 109.91) and TGF-β1 (38.37 ± 3.14 vs. 82.54 ± 115.99) in the serum were significantly lower than those in the peritoneal fluid, whereas no significant difference was observed in the primary TFI group between the serum and peritoneal fluid cytokines levels. Conclusion The expression of cytokines in the pelvic environment of patients with TFI is upregulated compared to patients who do not have infertility issues. The detection of cytokines TNF-ɑ, IL-6, IL-8, and TGF-β1 in the pelvic fluid of tubal infertility patients can allow for further understanding of the etiology of TFI.


Pathogens ◽  
2021 ◽  
Vol 10 (5) ◽  
pp. 566
Author(s):  
Stephanie R. Lundy ◽  
Kobe Abney ◽  
Debra Ellerson ◽  
Joseph U. Igietseme ◽  
Darin Carroll ◽  
...  

Genital Chlamydia trachomatis infection causes severe reproductive pathologies such as salpingitis and pelvic inflammatory disease that can lead to tubal factor infertility. MicroRNAs (miRNAs) are evolutionarily conserved regulators of mammalian gene expression in development, immunity and pathophysiologic processes during inflammation and infection, including Chlamydia infection. Among the miRNAs involved in regulating host responses and pathologic outcome of Chlamydia infection, we have shown that miR-378b was significantly differentially expressed during primary infection and reinfection. In this study, we tested the hypothesis that miR-378b is involved in the pathological outcome of Chlamydia infection. We developed miR-378b knockout mice (miR-378b−/−) using Crispr/Cas and infected them along with their wild-type (WT) control with Chlamydia to compare the infectivity and reproductive pathologies. The results showed that miR-378b−/− mice were unable to clear the infection compared to WT mice; also, miR-378b−/− mice exhibited a relatively higher Chlamydia burden throughout the duration of infection. However, gross pathology results showed that miR-378b−/− mice had significantly reduced uterine dilatations and pathologic lesions after two infections compared to WT mice. In addition, the pregnancy and fertility rates for infected miR-378b−/− mice showed protection from Chlamydia-induced infertility with fertility rate that was comparable to uninfected WT mice. These results are intriguing as they suggest that miR-378b is important in regulating host immune responses that control Chlamydial replication and drive the inflammation that causes complications such as infertility. The finding has important implications for biomarkers of Chlamydial complications and targets for prevention of disease.


Biomedicines ◽  
2021 ◽  
Vol 9 (7) ◽  
pp. 784
Author(s):  
Sandra Minic ◽  
Marion Florimond ◽  
Jérémy Sadoine ◽  
Anne Valot-Salengro ◽  
Catherine Chaussain ◽  
...  

Dental pulp is a dynamic tissue able to heal after injury under moderate inflammatory conditions. Our study aimed to evaluate pulp repair under inflammatory conditions in rats. For this purpose, we developed a rat model of controlled pulpitis followed by pulpotomy with a tricalcium silicate-based cement. Fifty-four cavities were prepared on the occlusal face of the maxillary upper first molar of 27 eight-week-old male rats. E. coli lipopolysaccharides at 10 mg/mL or phosphate-buffered saline PBS was injected after pulp injury. Non-inflamed molars were used as controls. Levels of inflammation-related molecules were measured 6 and 24 h after induction by enzyme-linked immunosorbent assay of coronal pulp samples. Pulp capping and coronal obturation after pulpotomy were performed with tricalcium silicate-based cement. Four and fifteen days after pulpotomy, histological and immunohistochemical analysis was performed to assess pulp inflammation and repair processes. Our results showed significantly higher levels of innate inflammatory proteins (IL-1β, IL-6, TNF-α and CXCL-1) compared with those in controls. Moderate residual inflammation near the capping material was demonstrated by histology and immunohistochemistry, with the presence of few CD68-positive cells. We showed that, in this model of controlled pulpitis, pulpotomy with BiodentineTM allowed the synthesis at the injury site of a mineralized bridge formed from mineralized tissue secreted by cells displaying odontoblastic characteristics. Analysis of these data suggests overall that, with the limitations inherent to findings in animal models, pulpotomy with a silicate-based cement is a good treatment for controlling inflammation and enhancing repair in cases of controlled pulpitis.


2021 ◽  
pp. sextrans-2021-054992
Author(s):  
Jan E A M van Bergen ◽  
Bernice Maria Hoenderboom ◽  
Silke David ◽  
Febe Deug ◽  
Janneke C M Heijne ◽  
...  

ObjectivesThe clinical and public health relevance of widespread case finding by testing for asymptomatic chlamydia infections is under debate. We wanted to explore future directions for chlamydia control and generate insights that might guide for evidence-based strategies. In particular, we wanted to know the extent to which we should pursue testing for asymptomatic infections at both genital and extragenital sites.MethodsWe synthesised findings from published literature and from discussions among national and international chlamydia experts during an invitational workshop. We described changing perceptions in chlamydia control to inform the development of recommendations for future avenues for chlamydia control in the Netherlands.ResultsDespite implementing a range of interventions to control chlamydia, there is no practice-based evidence that population prevalence can be reduced by screening programmes or widespread opportunistic testing. There is limited evidence about the beneficial effect of testing on pelvic inflammatory disease prevention. The risk of tubal factor infertility resulting from chlamydia infection is low and evidence on the preventable fraction remains uncertain. Overdiagnosis and overtreatment with antibiotics for self-limiting and non-viable infections have contributed to antimicrobial resistance in other pathogens and may affect oral, anal and genital microbiota. These changing insights could affect the outcome of previous cost–effectiveness analysis.ConclusionThe balance between benefits and harms of widespread testing to detect asymptomatic chlamydia infections is changing. The opinion of our expert group deviates from the existing paradigm of ‘test and treat’ and suggests that future strategies should reduce, rather than expand, the role of widespread testing for asymptomatic chlamydia infections.


Author(s):  
Damla C. GONULLU ◽  
Xiao M. HUANG ◽  
LeRoy G. ROBINSON ◽  
Christopher A. WALKER ◽  
Martins AYOOLA-ADEOLA ◽  
...  

2021 ◽  
Vol 36 (Supplement_1) ◽  
Author(s):  
R Heidenberg ◽  
A Lanes ◽  
E Ginsburg ◽  
C Gordon

Abstract Study question How do live birth rates differ in anovulatory women with polycystic ovary syndrome and hypothalamic hypogonadism compared to normo-ovulatory women undergoing fresh or frozen embryo transfer? Summary answer Live birth rates are similar among all groups undergoing fresh embryo transfer but are significantly lower in women with hypothalamic hypogonadism undergoing frozen embryo transfer. What is known already Conflicting data exist regarding pregnancy outcomes in patients with tubal factor infertility versus polycystic ovary syndrome (PCOS). Some studies demonstrate higher pregnancy and live birth rates for women with PCOS undergoing fresh embryo transfer, but other studies demonstrate no difference. Women with PCOS have higher live birth rates than those with tubal factor infertility when undergoing frozen embryo transfer. Fewer data are available regarding IVF outcomes in women with hypothalamic hypogonadism (HH) and tubal factor infertility. Several studies report comparable live birth rates with fresh embryo transfer, but there are no data on frozen embryo transfer outcomes. Study design, size, duration Retrospective cohort study of all fresh and frozen autologous embryo transfers performed for patients with oligo-anovulation (PCOS, n = 380 and HH, n = 39) and normo-ovulation (tubal factor infertility, n = 315) from 1/1/2012 to 6/30/2019. A total of 734 transfers from 653 patients were analyzed. Participants/materials, setting, methods Transfer outcomes, including implantation, miscarriage, clinical pregnancy and live birth rates, were assessed in fresh and frozen embryo transfer cycles. Adjusted relative risks (RR) and 95% confidence intervals (CI) were calculated adjusting for age, BMI, stimulation protocol, number of embryos transferred, embryo quality, endometrial stripe thickness and day of transfer. Poisson regression was used for counts and with an offset for ratios. Generalized estimating equations were used to account for patients contributing multiple cycles. Main results and the role of chance For fresh embryo transfer cycles, live birth rates are similar among patients with tubal factor infertility, PCOS and HH (29.5% vs. 37.9% vs. 35.9%, respectively, aRR 1.15 95% CI: 0.91–1.44 and aRR 1.23 95% CI: 0.81–2.00, respectively). When evaluating frozen embryo transfer cycles, patients with HH have lower live birth rates than patients with tubal factor infertility (26.5% vs. 42.6%, aRR 0.54 95% CI: 0.33–0.88) and patients with PCOS (26.5% vs. 46.7%, aRR 0.55 95% CI: 0.34–0.88). Additionally, patients with HH have higher chemical pregnancy rates and miscarriage rates than patients with tubal factor infertility (26.5% vs. 13.0% and 17.7% vs. 6.5%, respectively, RR 2.71 95% CI: 1.27–5.77 and RR 2.03 95% CI: 1.05–3.80, respectively). Point biserial correlation showed no significant correlation between live birth and endometrial stripe thickness in HH patients undergoing frozen embryo transfer (r = 0.028, p-value 0.876). Limitations, reasons for caution This study is limited by its retrospective nature and the small sample size of women with hypothalamic hypogonadism. Additionally, these data represent outcomes from a single academic center, so generalizability of our findings may be limited. Wider implications of the findings: Lower live birth rates for HH patients undergoing frozen embryo transfer cycles are not correlated with endometrial stripe thickness. This may be due to absent gonadotropin signaling on endometrial receptors. A prospective randomized trial of HH patients to modified natural versus programmed frozen embryo transfer would best support this hypothesis. Trial registration number Not applicable


2021 ◽  
Vol Publish Ahead of Print ◽  
Author(s):  
Gloria E. Anyalechi ◽  
Jaeyoung Hong ◽  
Robert D. Kirkcaldy ◽  
Harold C. Wiesenfeld ◽  
Paddy Horner ◽  
...  

Author(s):  
Sheila Balakrishnan ◽  
Anitha Malathi ◽  
Geetha Raveendran ◽  
Dolly Johnrose ◽  
Sreekumari Radha

Background: Chlamydial infection is considered to be one of the important causes of tubal factor infertility. This study will help to explore the relationship between positive Chlamydial infection and tubal damage in infertile women assessed by diagnostic laparoscopy. The results will help to determine whether a policy of routine screening for Chlamydia antibody is justifiable in infertile women to suspect tubal factor so that they can be taken up for laparoscopy earlier.Methods: A prospective study was performed on 158 consecutive patients who underwent laparoscopy as part of infertility evaluation. About 5 mL of venous blood was drawn preoperatively to detect Chlamydia IgG antibody in all the patients by ELISA. The laparoscopic findings were documented and the relationship to Chlamydial antibody evaluated.Results: Of the 158 patients who underwent laparoscopy, 95 patients had evidence of tubal disease as evidenced by unilateral or bilateral tubal block, peritubal adhesions, hydrosalpinx, beading of the tube and unhealthy shaggy appearance. Of the 95 patients with documented tubal disease at laparoscopy, 14 (14.7%) had antibodies to Chlamydia. Of the 63 patients with normal tubes, 12 (19%) had Chlamydial positivity. The difference is not statistically significant. However of the 26 patients who were positive for Chlamydia antibodies 14 patients (53.8%) had abnormal tubes. Out of the 158 patients who underwent laparoscopy 26 patients were positive for Chlamydia. Hence the prevalence in our study is 16.4% (26/158). The sensitivity is 14.7% and the specificity is 81%.Conclusions: This study showed no difference in Chlamydial positivity between infertile women with abnormal tubes and those with normal looking tubes in our population. The absence of Chlamydial antibodies cannot be taken as a marker for normal tubes. Hence screening for chlamydial antibody can neither be used as a screening test for tubal factor infertility nor to decide on the need for laparoscopy in the present population.


Sign in / Sign up

Export Citation Format

Share Document