Introduction: Extensive trauma frequently disrupts endometrial regeneration by diminishing endometrial stem cells/progenitor cells, affecting female fertility. While bone marrow mesenchymal stem cell (BMSC) transplantation has been suggested as an approach to address endometrial injury, it comes with certain limitations. Recent advancements in endometrial epithelial organoids (EEOs) have displayed encouraging potential for endometrial regeneration.
View Article and Find Full Text PDFHydrazine (NH) has toxic effects on the environment. Although a variety of reactive probes have been used to identify hydrazine, practical applications required continuous development of hydrazine fluorescent probes with improved performance. Here, we applied the neighboring group participation (NGP) to the design of a fluorescent probe for hydrazine.
View Article and Find Full Text PDFSoil health is seriously threatened by the overuse of chemical fertilizers in agricultural management. Biogas slurry is often seen as an organic fertilizer resource that is rich in nutrients, and its use has the goal of lowering the amount of chemical fertilizers used while preserving crop yields and soil health. However, the application of continuous biogas slurry has not yet been studied for its long-term impact on soil nutrients and microbial communities in a rotation system of annual ryegrass-silage maize ().
View Article and Find Full Text PDFBackground: We aimed to estimate the prevalence and incidence of syphilis at global, regional and national levels for human immunodeficiency virus (HIV)-positive and HIV-negative men who have sex with men (MSM) and explore the association between demographic and social behavioural factors and syphilis infection.
Methods: We searched PubMed, Embase, and the Cochrane Library from 1 January 2012 to 31 December 2022 for studies of reported crude syphilis prevalence or incidence in MSM or with sufficient data to calculate prevalence or incidence rate in MSM.
Results: We included 376 articles reporting on 409 records from 62 countries to calculate syphilis prevalence and incidence in MSM.
This paper proposes an improved version of physics-informed neural networks (PINNs), the physics-informed kernel function neural networks (PIKFNNs), to solve various linear and some specific nonlinear partial differential equations (PDEs). It can also be considered as a novel radial basis function neural network (RBFNN). In the proposed PIKFNNs, it employs one-hidden-layer shallow neural network with the physics-informed kernel functions (PIKFs) as the customized activation functions.
View Article and Find Full Text PDFIn order to improve the stiffness of flexible robots, this paper proposes a variable-stiffness elastic actuator. The actuator integrates the working principles of a pneumatic drive, wedge structure, and particle blockage. The anti-tensile stiffness of the actuator is nonlinearly negatively correlated with the air pressure because of the structural and material properties.
View Article and Find Full Text PDFA polyhydroxyalkanoate (PHA) magnetic microsphere was designed for one-step purification and immobilization of a novel carbonyl reductase (RLSR5) from recombinant Escherichia coli lysate. The hydrophobic core of this microsphere was composed of a highly biocompatible polymer, poly(3-hydroxybutyrate-co-3-hydroxyhexanoate) (PHBHHx), in which magnetic FeO particles were embedded during solvent evaporation. The hydrophilic shell of the fusion protein formed by PHA particle-binding protein (PhaP) and RLSR5 (PR) was expressed in recombinant E.
View Article and Find Full Text PDFReprod Biol Endocrinol
August 2023
Female infertility is a worldwide concern that impacts the quality of life and well-being of affected couples. Failure of embryo implantation is a major cause of early pregnancy loss and is precisely regulated by a programmed molecular mechanism. Recent studies have shown that proper trophoblast adhesion and invasion are essential for embryo implantation.
View Article and Find Full Text PDFRationale: This case report aims to describe the treatment of infected placenta accreta in the uterine horn by transabdominal temporary occlusion of internal iliac arteries.
Patient Concerns: A 29-year-old female patient had a history of retained placenta for 28 days after labor induction in the second trimester of pregnancy because of fetal malformation.
Diagnoses: Placenta accreta in the uterine horn was diagnosed by 3-dimensional ultrasound and magnetic resonance imaging, and the diagnosis was confirmed during the operation.
Drought, as a widespread environmental factor in nature, has become one of the most critical factors restricting the yield of forage grass. Sudangrass ( (Piper) Stapf.), as a tall and large grass, has a large biomass and is widely used as forage and biofuel.
View Article and Find Full Text PDFFront Endocrinol (Lausanne)
April 2023
Introduction: Hysteroscopic adhesiolysis is widely performed in women with intrauterine adhesions. Small observational studies have reported the obstetric and neonatal outcomes, but studies with larger sample sizes are few. The aim of this study is to evaluate the obstetric and neonatal outcomes in women after hysteroscopic adhesiolysis.
View Article and Find Full Text PDFObjective: To investigate the expression, prognosis, and underlying mechanism of Paxillin (PXN) in ovarian cancer.
Materials And Methods: By comprehensive use of various bioinformatics tools, we analyzed the expression of PXN and its prognostic value in ovarian cancer. Then, the enrichment analyses were conducted to determine the possible regulatory pathways PXN involved in ovarian cancer.
Objective: To analyze a case of neglected cervicovesical fistula with intrauterine adhesions caused by cesarean section.
Methods: A 36-year-old female patient with a history of two previous cesarean sections complained of the absence of menstruation for the last 18 months. The diagnosis of the cervicovesical fistula was made through hysteroscopy and cystoscopy.
In this study, we developed an efficient approach for disulfide bond formation in peptides utilizing the Pt(IV) complex -[PtBr(CN)] to mediate Acm and Thz deprotections. [PtBr(CN)] can oxidatively deprotect two Acm groups or deprotect one Thz group and one Acm group to directly form an intramolecular disulfide bond in peptides. Several disulfide-containing peptides with excellent yields were achieved via the deprotection method in an aqueous medium under aerobic conditions.
View Article and Find Full Text PDFThe heat shock protein 90 () is a protein produced in plants in response to stress. This study identified and analyzed gene family members in the perennial ryegrass genome. From the results, eight proteins were obtained and their MW, pI and number of amino acid bases varied.
View Article and Find Full Text PDFDrought is among the most important natural disasters with severe effects on animals and plants. MicroRNAs are a class of noncoding RNAs that play a crucial role in plant growth, development, and response to stress factors, including drought. However, the microRNAs in drought responses in common vetch (), an annual herbaceous leguminous plant commonly used for forage by including it in mixed seeding during winter and spring, have not been characterized.
View Article and Find Full Text PDFPostmenopausal women taking estrogen supplements are at a lower risk of advanced colorectal cancer, but the underlying mechanism remains unclear. Thus, this study examined the role of estrogen in colorectal cancer. Estrogen receptor expression levels in in situ colorectal cancer tissue from female patients increased significantly, indicating their estrogen sensitivity.
View Article and Find Full Text PDFBackground: Unresponsive thin endometrium caused by Asherman syndrome (AS) is the major cause of uterine infertility. However, current therapies are ineffective. This study is to evaluate the effect of transplantation with collagen scaffold/umbilical cord mesenchymal stem cells (CS/UC-MSCs) on this refractory disease.
View Article and Find Full Text PDFAn amendment to this paper has been published and can be accessed via a link at the top of the paper.
View Article and Find Full Text PDFAutophagy can be dynamically induced in response to stresses and is an essential, ubiquitous intracellular recycling system that impacts the fate of damaged resident cells, thereby influencing wound healing. Endometrial fibrosis is a form of abnormal wound healing that causes intrauterine adhesion (IUA) and infertility. We previously demonstrated that overactivated sonic hedgehog (SHH) signaling exacerbated endometrial fibrosis, but the role of autophagy in this process is still unknown.
View Article and Find Full Text PDFEndometriosis an important cause of female infertility and seriously impact physical and psychological health of patients. Endometriosis is now considered to be a public health problem that deserves in-depth investigation, especially the etiopathogenesis of endometriosis-associated infertility. We aimed to illuminate the etiopathogenesis of endometriosis-associated infertility that involve excessive oxidative stress (OS) induced pathological changes of ovary cumulus granulosa cell (GCs).
View Article and Find Full Text PDFHydrazine is an important catalyst and chemical raw material. But it is highly toxic and potentially carcinogenic. We designed a new hydrazine probe based on a synergistic effect by introducing acetate and phthalimide into 2-phenyl-benzimidazole (PBI).
View Article and Find Full Text PDFSpectrochim Acta A Mol Biomol Spectrosc
March 2020
Hydrazine is extremely harmful to the human body. The leakage of hydrazine is liable to cause potential safety hazards. Here, we reported a new fluorescence probe based on the tandem reaction.
View Article and Find Full Text PDFTo report on our experience of surgery of cesarean scar pregnancy with temporary occlusion of the bilateral internal iliac arteries.Single center, retrospective review of patients who were diagnosed as cesarean scar pregnancy between December 2017 and December 2018. All patients were managed by laparoscopic cornuostomy and simultaneously repair the defect with temporary occlusion of the bilateral internal iliac arteries, followed by hysteroscopy to confirm no remnants of the pregnancy and deal with intrauterine lesions synchronously.
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