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  • Open Access

    REVIEW

    The effects of hormone-mediated PI3K/AKT signaling on spermatogenesis in Sertoli cells

    YANSHUANG ZHAO, WANXI YANG*

    BIOCELL, Vol.47, No.8, pp. 1709-1725, 2023, DOI:10.32604/biocell.2023.030379

    Abstract The phosphoinositide-3-kinase/Akt (PI3K/AKT) signaling pathway is crucial for Sertoli cell development and completing spermatogenesis. Its main role is to promote proliferation and inhibit apoptosis. Many factors activate the PI3K/AKT pathway, like hormones, such as follicle stimulating hormone (FSH), androgen, estrogen, insulin to name a few. Many of these factors have receptors inside or on the surface of Sertoli cells (SCs). This review summarizes how these hormones directly regulate the PI3K/AKT signaling pathway in SCs, which in turn affects SC proliferation and differentiation. Further, hormone-mediated PI3K/AKT signaling also stimulates SC secretion, which is essential for germ cell development, suggesting an indirect… More >

  • Open Access

    ARTICLE

    Impact de la Covid-19 sur la fertilité et la sexualité durant le confinement : quelles pertes de chance ?*

    Impact of COVID-19 on Fertility and Sexuality during Lockdown: What Losses of Chance?

    B. Ducrocq

    Psycho-Oncologie, Vol.16, No.3, pp. 313-317, 2022, DOI:10.3166/pson-2022-0209

    Abstract The world population is lockdown in March 2020 because of the COVID-19 pandemic due to the SARS-CoV-2 (severe acute respiratory syndrome coronavirus 2) virus. The impact on mental and sexual health adds to the effects on public health and physical health. Individuals’ projects were disrupted like the parenthood of couples. The sexuality adapted to loneliness, and we observe important reshuffles linked to anxiety and uncertainty of worldwide pandemic.

    Résumé La pandémie de Covid-19 liée au virus SARSCoV-2 a imposé un confinement mondial des populations en mars 2020. Outre les effets sur la santé publique et la santé physique, la… More >

  • Open Access

    REVIEW

    Current and future therapies for abnormal early embryogenesis with assisted reproductive technology

    XIAOXIA WANG1,#, ZHONGYUAN YAO1,2,#, DI LIU1, CHUNHONG YU3,*, HUI LI1,3,*

    BIOCELL, Vol.46, No.8, pp. 1803-1806, 2022, DOI:10.32604/biocell.2022.019731

    Abstract Each stage of embryonic development, including normal gamete maturation, fertilization, zygotic genome activation, and cleavage, is crucial for human reproduction. Early embryo arrest is a common phenomenon. It is estimated that about 40%–70% of human embryos are arrested at early developmental stages. However, the exact mechanism remains largely uncertain. Embryos can be investigated in vitro by way of the development of in vitro fertilization/intracytoplasmic sperm injection. In addition to iatrogenic factors related to abnormal oocyte/embryo development, multiple gene mutations have been found to be involved in such phenotypes. Based on the knowledge of known etiological factors, several therapies are proposed… More >

  • Open Access

    ARTICLE

    Ameliorative effects of melatonin and zinc oxide nanoparticles treatment against adverse effects of busulfan induced infertility in male albino mice

    AMOURA M. ABOU-EL-NAGA1, SHAKER A. MOUSA2, FAYEZ ALTHOBAITI3, EMAN FAYAD3,*, ENGY S. FAHIM1

    BIOCELL, Vol.46, No.2, pp. 535-545, 2022, DOI:10.32604/biocell.2022.017739

    Abstract Testicular damage is one of the most hazardous effects as it’s associated with azoospermia. Busulfan (Bu) is a highly toxic chemotherapeutic drug that affects testis. Thirty male Swiss albino mice divided into six groups of 5 animals each. Control (oral 0.9% saline daily for 75 days); Mel (20 mg/kg/day orally for 30 days); ZnO NPs (5 mg/kg/day i.p. for 30 days); BU (single i.p. injection of 40 mg/kg and then left for 45 days); BU + Mel (single 40 mg/kg dose of BU and left for 45 days followed by 20 mg/kg/day Mel for 30 days); BU + ZnO NPs… More >

  • Open Access

    ARTICLE

    A Pregnancy Prediction System based on Uterine Peristalsis from Ultrasonic Images

    Kentaro Mori1,*, Kotaro Kitaya2, Tomomoto Ishikawa2, Yutaka Hata3

    Intelligent Automation & Soft Computing, Vol.29, No.2, pp. 335-352, 2021, DOI:10.32604/iasc.2021.01010

    Abstract In infertility treatment, it is required to improve a success rate of the treatment. A purpose of this study is to develop a prediction system for pregnancy outcomes using ultrasonic images. In infertility treatment, it is typical to evaluate the endometrial shape by using ultrasonic images. The convolutional neural network (CNN) system developed in the current study predicted pregnancy outcome by velocity information. The velocity information has a movement feature of uterine. It is known that a uterine movement is deep related to infertility. Experiments compared the velocity-based and shape-based systems. The shape-based systems predict the optimal uterine features for… More >

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