Attenuated monoamine oxidase a impairs endometrial receptivity in women with adenomyosis via downregulation of FOXO1

2021 ◽  
Author(s):  
Jiao Tian ◽  
Chunxue Zhang ◽  
Nannan Kang ◽  
Junxia Wang ◽  
Na Kong ◽  
...  
Keyword(s):  
Monoamine Oxidase ◽  
Reproductive Technology ◽  
Vital Role ◽  
Endometrial Receptivity ◽  
Clinical Pregnancy ◽  
Monoamine Oxidase A ◽  
Female Reproduction ◽  
Successful Pregnancy ◽  
Endometrial Epithelial Cell ◽  
Multiple Processes

Abstract The establishment of endometrial receptivity is a prerequisite for successful pregnancy. Women with adenomyosis possess a lower chance of clinical pregnancy after assisted reproductive technology, which is partially due to impaired endometrial receptivity. The establishment of endometrial receptivity requires the participation of multiple processes, and proper endometrial epithelial cell (EEC) proliferation is indispensable. Monoamine oxidase A (MAOA) is a key molecule that regulates neurotransmitter metabolism in the nervous system. In the present study, we demonstrated a novel role for MAOA in the establishment of endometrial receptivity in women with adenomyosis and in an adenomyotic mouse model. Attenuated MAOA impairs endometrial receptivity by promoting inappropriate proliferation of EECs via the downregulation of FOXO1 during the window of implantation. These results revealed that MAOA plays a vital role in endometrial receptivity in female reproduction.

scholarly journals Ssc-miR-21-5p regulates endometrial epithelial cell proliferation, apoptosis and migration via the PDCD4/AKT pathway

2020 ◽  
Vol 133 (23) ◽  
pp. jcs248898
Author(s):  
Renwu Hua ◽  
Xiuling Zhang ◽  
Wenchao Li ◽  
Weisi Lian ◽  
Qiaorui Liu ◽  
...  
Keyword(s):  
Embryo Implantation ◽  
Vital Role ◽  
Endometrial Receptivity ◽  
Akt Pathway ◽  
Loss Of Function ◽  
Endometrial Epithelial Cell ◽  
Programmed Cell Death 4 ◽  
And Migration

ABSTRACTEndometrial receptivity plays a vital role in successful embryo implantation in pigs. MicroRNAs (miRNAs), known as regulators of gene expression, have been implicated in the regulation of embryo implantation. However, the role of miRNAs in endometrial receptivity during the pre-implantation period remains elusive. In this study, we report that the expression level of Sus scrofa (ssc)-miR-21-5p in porcine endometrium tissues was significantly increased from day 9 to day 12 of pregnancy. Knockdown of ssc-miR-21-5p inhibited proliferation and migration of endometrial epithelial cells (EECs), and induced their apoptosis. We verified that programmed cell death 4 (PDCD4) was a target gene of ssc-miR-21-5p. Inhibition of PDCD4 rescued the effect of ssc-miR-21-5p repression on EECs. Our results also revealed that knockdown of ssc-miR-21-5p impeded the phosphorylation of AKT (herein referring to AKT1) by targeting PDCD4, which further upregulated the expression of Bax, and downregulated the levels of Bcl2 and Mmp9. Furthermore, loss of function of Mus musculus (mmu)-miR-21-5p in vivo resulted in a decreased number of implanted mouse embryos. Taken together, knockdown of ssc-miR-21-5p hampers endometrial receptivity by modulating the PDCD4/AKT pathway.

scholarly journals Comparative effectiveness of recombinant human follicle-stimulating hormone alfa (r-hFSH-alfa) versus highly purified urinary human menopausal gonadotropin (hMG HP) in assisted reproductive technology (ART) treatments: a non-interventional study in Germany

2021 ◽  
Vol 19 (1) ◽  
Author(s):  
Klaus F. Bühler ◽  
Robert Fischer ◽  
Patrice Verpillat ◽  
Arthur Allignol ◽  
Sandra Guedes ◽  
...  
Keyword(s):  
Assisted Reproductive Technology ◽  
Live Birth ◽  
Pregnancy Loss ◽  
Follicle Stimulating Hormone ◽  
Reproductive Technology ◽  
Clinical Pregnancy ◽  
Human Menopausal Gonadotropin ◽  
Ongoing Pregnancy ◽  
Complete Cycle ◽  
Significant Difference

Abstract Background This study compared the effectiveness of recombinant human follicle-stimulating hormone alfa (r-hFSH-alfa; GONAL-f®) with urinary highly purified human menopausal gonadotropin (hMG HP; Menogon HP®), during assisted reproductive technology (ART) treatments in Germany. Methods Data were collected from 71 German fertility centres between 01 January 2007 and 31 December 2012, for women undergoing a first stimulation cycle of ART treatment with r-hFSH-alfa or hMG HP. Primary outcomes were live birth, ongoing pregnancy and clinical pregnancy, based on cumulative data (fresh and frozen-thawed embryo transfers), analysed per patient (pP), per complete cycle (pCC) and per first complete cycle (pFC). Secondary outcomes were pregnancy loss (analysed per clinical pregnancy), cancelled cycles (analysed pCC), total drug usage per oocyte retrieved and time-to-live birth (TTLB; per calendar week and per cycle). Results Twenty-eight thousand six hundred forty-one women initiated a first treatment cycle (r-hFSH-alfa: 17,725 [61.9%]; hMG HP: 10,916 [38.1%]). After adjustment for confounding variables, treatment with r-hFSH-alfa versus hMG HP was associated with a significantly higher probability of live birth (hazard ratio [HR]-pP [95% confidence interval (CI)]: 1.10 [1.04, 1.16]; HR-pCC [95% CI]: 1.13 [1.08, 1.19]; relative risk [RR]-pFC [95% CI]: 1.09 [1.05, 1.15], ongoing pregnancy (HR-pP [95% CI]: 1.10 [1.04, 1.16]; HR-pCC [95% CI]: 1.13 [1.08, 1.19]; RR-pFC [95% CI]: 1.10 [1.05, 1.15]) and clinical pregnancy (HR-pP [95% CI]: 1.10 [1.05, 1.14]; HR-pCC [95% CI]: 1.14 [1.10, 1.19]; RR-pFC [95% CI]: 1.10 [1.06, 1.14]). Women treated with r-hFSH-alfa versus hMG HP had no statistically significant difference in pregnancy loss (HR [95% CI]: 1.07 [0.98, 1.17], were less likely to have a cycle cancellation (HR [95% CI]: 0.91 [0.84, 0.99]) and had no statistically significant difference in TTLB when measured in weeks (HR [95% CI]: 1.02 [0.97, 1.07]; p = 0.548); however, r-hFSH-alfa was associated with a significantly shorter TTLB when measured in cycles versus hMG HP (HR [95% CI]: 1.07 [1.02, 1.13]; p = 0.003). There was an average of 47% less drug used per oocyte retrieved with r-hFSH-alfa versus hMG HP. Conclusions This large (> 28,000 women), real-world study demonstrated significantly higher rates of cumulative live birth, cumulative ongoing pregnancy and cumulative clinical pregnancy with r-hFSH-alfa versus hMG HP.

scholarly journals High-dose testosterone treatment reduces monoamine oxidase A levels in the human brain: a preliminary report

2021 ◽  
pp. 105381
Author(s):  
Georg S. Kranz ◽  
Marie Spies ◽  
Chrysoula Vraka ◽  
Ulrike Kaufmann ◽  
Eva-Maria Klebermass ◽  
...  
Keyword(s):  
Monoamine Oxidase ◽  
Human Brain ◽  
Preliminary Report ◽  
Monoamine Oxidase A ◽  
High Dose ◽  
Testosterone Treatment

Monoamine Oxidase A (MAOA) methylation in acrophobia: an epigenetic correlate of therapy response?

2019 ◽  
Vol 29 ◽  
pp. S203-S204
Author(s):  
M. Schiele ◽  
C. Ziegler ◽  
L. Kollert ◽  
A. Katzorke ◽  
D. Gromer ◽  
...  
Keyword(s):  
Monoamine Oxidase ◽  
Therapy Response ◽  
Monoamine Oxidase A

scholarly journals Association between monoamine oxidase A promoter polymorphism and the risk of sudden infant death syndrome: a meta-analysis

2021 ◽  
Author(s):  
Qiaoxia Zhou ◽  
Daoyin Gong ◽  
Yu Zhang ◽  
Feijun Huang
Keyword(s):  
Monoamine Oxidase ◽  
Sudden Infant Death Syndrome ◽  
Infant Death ◽  
Protective Factor ◽  
Meta Analysis ◽  
Variable Number Tandem Repeat ◽  
Sudden Infant Death ◽  
Monoamine Oxidase A ◽  
Sudden Infant ◽  
Increased Risk

Abstract Introduction The etiology of sudden infant death syndrome (SIDS) remains an unsolved problem. The aim of this meta-analysis is to investigate the potential association between monoamine oxidase A (MAOA) promoter variable number tandem repeat (VNTR) polymorphism and SIDS risk. Methods A systematic review and meta-analysis were conducted on studies from accessible electronic databases. Each VNTR variant was examined in each gender independently by comparing with the pooled results of other alleles. Results A total of six independent case–control studies including 1022 SIDS cases and 1839 controls were enrolled in this meta-analysis. In both of the whole populations and Caucasian populations, male infants with the low-MAOA-expression alleles (2R+3R) were found to exhibit a statistically significant increased risk of SIDS, whereas those with a 4R allele exhibited a reduced risk of SIDS. Besides, an increased risk of SIDS was detected in male Caucasian infants with 2R or 3R alleles. However, none of the allele or genotype variants was associated with SIDS in female victims. Conclusion In male Caucasian infants, the low expression of MAOA promoter VNTR alleles (2R and 3R) is associated with an increased risk of SIDS, and the existence of the 4R allele could be regarded as a protective factor.

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