scholarly journals Impaired Wnt5a signaling in extravillous trophoblasts: Relevance to poor placentation in early gestation and subsequent preeclampsia

2018 ◽  
Vol 13 ◽  
pp. 225-234 ◽  
Author(s):  
Mari Ujita ◽  
Eiji Kondoh ◽  
Yoshitsugu Chigusa ◽  
Haruta Mogami ◽  
Kaoru Kawasaki ◽  
...  
Author(s):  
A Wloch ◽  
W Rozmus-Warcholinska ◽  
B Czuba ◽  
D Borowski ◽  
K Sodowski

Author(s):  
Alexandra Cremona ◽  
Amanda Cotter ◽  
Khadijah Ismail ◽  
Kevin Hayes ◽  
Alan Donnelly ◽  
...  

GYNECOLOGY ◽  
2017 ◽  
Vol 19 (6) ◽  
pp. 11-15 ◽  
Author(s):  
T E Karapetyan ◽  
V V Muravieva ◽  
A S Ankirskaya ◽  
L A Lyubasovskaya ◽  
T V Priputnevich

The aim of the study was to evaluate the effectiveness of treatment of women with opportunistic vaginal infections during pregnancy. Materials and methods. A prospective cohort study included 330 pregnant women, of whom 151 were diagnosed with bacterial vaginosis (BV), 37 had aerobic vaginitis (AB), 109 had vulvovaginal candidiasis (VC), 20 had a combination of VC + BV. When carrying out antibiotic therapy in the early stages of pregnancy, the principle of local treatment was observed. Results. Most often (46.0%), vaginal infections were detected when women were treated early in pregnancy. In the treatment of BV in the early stages of pregnancy with antiseptic chlorhexidine, a positive result of therapy was noted in 97.6% of women. Therapy with metronidazole or clindamycin BV in women who applied in the II and III trimesters, gave a positive result, respectively, in 90.0% and 89.5% of cases. The course of therapy with chlorhexidine pregnant women with AB was effective in 91.7% of cases with treatment in the first trimester and 92.0% in treatment in the II and III trimesters. In the treatment of VC in early pregnancy, natamycin was effective in 95.0% of women. In the II and III trimesters, econazole treatment was successful in 88.2% and 88.6%, respectively. In the treatment of combination of BV + VC in early gestation, the complex course of chlorhexidine + natamycin was effective in 76.5% of women, in II and III trimesters Neo-Penotran Forte was effective in 93.8% of pregnant women. Relapses of vaginal infections were observed in 34 pregnant women (10.3%). Superinfection with fungi was noted in 9.3% of cases of BV treatment and in 8.1% of pregnant women with AB. Among women observed from early pregnancy, there were no cases of premature birth, manifestations of intrauterine infections were noted in 5.3% of newborns. At treatment in the II and III trimesters, premature birth was in 6.5% and 13.5% of women, and manifestations of intrauterine infections - in 15.3% of newborns. Thus, microbiological monitoring of timely detection and treatment of opportunistic vaginal infections in pregnant at-risk groups showed the advisability of treating these infections in early gestation.


Author(s):  
Å.S. Emelyanenko , A.Yu. Blinov , T.M. Volkovskaya

The modern sonographic approach to define miscarriage in early pregnancy was shown in the article. Ultrasound diagnostic and prognostic criteria of nonviable pregnancy in early gestation were introduced. Special attention was paid to the examination`s algorithm and repeatability of ultrasound scans with suspicion of intrauterine pregnancy of uncertain viability. Also the consequences of non-following the stringent ultrasound criteria, which lead to the abortions of potentially normal pregnancies were described. Furthermore, the authors highlighted the importance of safety regulation`s aspects in ultrasound examination in early gestation. The conclusion of the importance and need in following the uniform methodological criteria in diagnostics of nonviable pregnancy has been drawn according to the analysis of world experience.


Biomolecules ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 822
Author(s):  
Keiichi Matsubara ◽  
Yuko Matsubara ◽  
Yuka Uchikura ◽  
Katsuko Takagi ◽  
Akiko Yano ◽  
...  

Preeclampsia (PE) is a serious disease that can be fatal for the mother and fetus. The two-stage theory has been proposed as its cause, with the first stage comprising poor placentation associated with the failure of fertilized egg implantation. Successful implantation and placentation require maternal immunotolerance of the fertilized egg as a semi-allograft and appropriate extravillous trophoblast (EVT) invasion of the decidua and myometrium. The disturbance of EVT invasion during implantation in PE results in impaired spiral artery remodeling. PE is thought to be caused by hypoxia during remodeling failure–derived poor placentation, which results in chronic inflammation. High-mobility group protein A (HMGA) is involved in the growth and invasion of cancer cells and likely in the growth and invasion of trophoblasts. Its mechanism of action is associated with immunotolerance. Thus, HMGA is thought to play a pivotal role in successful pregnancy, and its dysfunction may be related to the pathogenesis of PE. The evaluation of HMGA function and its changes in PE might confirm that it is a reliable biomarker of PE and provide prospects for PE treatment through the induction of EVT proliferation and invasion during the implantation.


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