Water-saving irrigation and the mixed application of controlled-release nitrogen fertilizer (CRNF) and common urea (CU; with a higher nitrogen release rate) have shown promise in improving rice yield with high resource use efficiency. However, the physiological mechanism underlying this effect remains largely unknown. This study involved a field experiment on rice in Jingzhou City, Central China, in 2020 and 2021.
View Article and Find Full Text PDFThe continuous decline of human semen quality during the past decades has drawn much concern globally. Previous studies have suggested a link between abnormal BMI and semen quality decline, but the results remain inconsistent. This systematic review and meta-analysis aimed to evaluate the association between body mass index (BMI) and semen quality.
View Article and Find Full Text PDFThe testicular consequences of acute epididymo-orchitis remain largely unelucidated in long-term damage, which might be a neglected factor for male infertility. In this study, the differential phenotype of testicular immune cell subpopulations in lipopolysaccharide (LPS)-induced mouse epididymo-orchitis were analyzed by flow cytometry on day 1, day 7, and day 28. The number of macrophages, neutrophils, and myeloid-derived suppressor cells (MDSCs) steadily decreased in the testes with inoculation.
View Article and Find Full Text PDFBackground: Infection and inflammation of the genital tract are major potentially treatable factors contributing to male infertility. The profile of small non-coding RNA (sncRNAs) in spermatozoa can be altered by environmental exposures and inflammatory conditions.
Objectives: Experimental autoimmune epididymo-orchitis (EAEO) is a well-established model of autoimmune-induced chronic testicular and epididymal inflammation.
Background: Previous studies have suggested an association between non-optimum ambient temperature and decreased semen quality. However, the effect of exposure to heat waves on semen quality remains unclear.
Methods: Volunteers who intended to donate sperm in Guangdong provincial human sperm bank enrolled.
Background: General obesity classified by body mass index has been linked to a reduction in semen quality; however, evidence on the adverse effect of central obesity on semen quality remains limited.
Objectives: To investigate the association between central obesity and semen quality.
Materials And Methods: We conducted a cross-sectional study of 4513 sperm donation volunteers in Guangdong Provincial Human Sperm Bank during 2018-2021.
Epididymitis is an epididymal inflammation that may lead to male infertility. Dendritic cells (DCs) and myeloid differentiation primary response gene 88 (Myd88) were associated with epididymitis in rodents. However, the functions of Myd88 on epididymal DCs remain unclear.
View Article and Find Full Text PDFProblem: The phenotypes and functions of B and CD4 T-helper cell subsets during chronic inflammation of the endometria remain largely unexplored. This study aimed to investigate the characteristics and functions of follicular helper T (Tfh) cells to understand the pathological mechanisms of chronic endometritis (CE).
Method Of Study: Eighty patients who underwent hysteroscopic and histopathological examinations for CE were divided into three groups-those with positive results for hysteroscopy and CD138 staining (DP), negative results for hysteroscopy but positive CD138 staining (SP), and negative results for hysteroscopy and CD138 staining (DN).
The human placenta is a unique temporary organ with a mysterious immune tolerance. The formation of trophoblast organoids has advanced the study of placental development. HLA-G is uniquely expressed in the extravillous trophoblast (EVT) and has been linked to placental disorders.
View Article and Find Full Text PDFSuccessful placentation requires delicate communication between the endometrium and trophoblasts. The invasion and integration of trophoblasts into the endometrium during early pregnancy are crucial to placentation. Dysregulation of these functions is associated with various pregnancy complications, such as miscarriage and preeclampsia.
View Article and Find Full Text PDFPregnancy involves a wide range of adaptations in the maternal body. Maternal immune tolerance toward the foreign fetus is critical for a successful pregnancy. Decidual macrophages are the primary antigen-presenting and phagocytic cells responsible for antigen presentation and apoptotic cell removal.
View Article and Find Full Text PDFBackground: Potential adverse effects of non-optimum temperatures on human semen quality have drawn much concern worldwide; however, the exposure-response relationship remains less understood.
Objectives: To quantitatively assess the association between exposure to ambient temperature and semen quality in South China, and to identify potential critical exposure windows.
Methods: We conducted a longitudinal study to investigate 11,050 volunteers who lived in Guangdong province, China and intended to donate sperm in the Guangdong provincial human sperm bank during 2016-2021.
Premature ejaculation (PE), despite its wide prevalence, is largely underdiagnosed and undertreated. Being a multifactorial dysfunction with strong cultural characteristics, PE requires skillful attitudes in the psychosexological support, necessary to manage the patient's and the couple's expectations, as well as in the medical treatment. Dapoxetine is a short-acting selective serotonin reuptake inhibitor approved for use in lifelong and acquired PE in a number of countries.
View Article and Find Full Text PDFBackground: Accumulating evidence has linked exposure to ambient air pollution to a reduction in semen quality; however, the exposure-response associations are yet to be synthesized.
Objective: To summarize the exposure-response associations between air pollution and semen quality.
Methods: We systematically searched PubMed, Embase, and Web of Science for relevant studies published before April 20, 2022.
The mononuclear phagocytic system (MPS) is the primary innate immune cell group in male reproductive tissues, maintaining the balance of pro-inflammatory and immune tolerance. This article aims to outline the role of mononuclear macrophages in the immune balance of the testes and epididymis, and to understand the inner immune regulation mechanism. A review of pertinent publications was performed using the PubMed and Google Scholar databases on all articles published prior to January 2021.
View Article and Find Full Text PDFPurpose: Implantation is a limiting factor for treatment success in assisted reproduction. Both embryonic and endometrial factors contribute to implantation. Embryonic factors have often been ignored in previous studies about the role of endometrium in implantation.
View Article and Find Full Text PDFBackground: RNA harbored by mammalian sperm is increasingly considered to be an additional source of paternal hereditary information, beyond DNA. Recent studies have demonstrated the role of sperm small noncoding RNAs (sncRNAs) in modulating early embryonic development and offspring phenotype. The biogenesis of the sperm sRNA payload of mammalian sperm has been explored in many studies.
View Article and Find Full Text PDFChemerin is an adipokine that regulates metabolism in pregnancy. An elevation of serum chemerin level is associated with pregnancy complications. Consistently, we demonstrated that the chemerin expression was increased in placenta of preeclamptic patients at deliveries.
View Article and Find Full Text PDFChronic epididymitis (CE) refers to a long-lasting inflammatory condition of the epididymis, which is considered the most common site of intrascrotal inflammation and an important aetiological factor of male infertility. Recent studies demonstrate that small RNAs secreted from epididymal epithelium modulate embryo development and offspring phenotypes sperm transmission, and the resulting modifications may lead to transgenerational inheritance. However, to date, the genome-wide analysis of small RNA together with the transcriptomic expression profiles of human epididymis and CE is still lacking.
View Article and Find Full Text PDFZhongguo Zhong Yao Za Zhi
September 2021
The development of quality Chinese medicine is an important way to improve the quality of Chinese medicine, and ensure the safety and effectiveness of Chinese medicine. This article systematically elaborates the definition, classification, standard and mana-gement certification strategy of quality Chinese medicine. We present the quality Chinese medicine which is higher quality than that of eligible Chinese medicine based on quality control standards.
View Article and Find Full Text PDFPurpose: To assess the association of body mass index (BMI) with serum anti-Müllerian hormone (AMH) and inhibin B (InB) levels among women attending a reproductive medical center.
Methods: We conducted a cross-sectional study of 8323 women (96.4% were Han race) without polycystic ovary syndrome (PCOS) from the reproductive medical center of Tongji Hospital in Wuhan, China for assisted reproductive technology treatment between January 2016 and May 2018.