Hiromitsu Shirasawa

BackgroundThyroid autoimmunity (TAI) is prevalent among women of reproductive age and has been associated with impaired fertility; however, its effects on ovarian reserve and infertility treatment outcomes remain controversial.MethodsA narr…

AIM: To investigate whether the etiology of diminished ovarian reserve (DOR) independently influences outcomes of assisted reproductive technology (ART). METHODS: This multicenter, retrospective cohort study was a secondary analysis of a n…

Research questionHow does the cost-related oocyte cryopreservation (OoC) vary by the facility in Japan, and what data is provided on the websites about OoC procedures?DesignWebsite survey. The websites of all 621 facilities that provide ass…

Abstract BackgroundAlthough saliva, whole blood, serum, plasma, urine, and feces have been used as specimens for SARS-CoV-2 antigen and antibody tests, menstrual blood has not been reported to date. Unlike invasive blood collection methods…

Background: Although saliva, whole blood, serum, plasma, urine, and feces have been used as specimens for SARS-CoV-2 antigen and antibody tests, menstrual blood has not been reported to date. Unlike invasive blood collection methods, menstr…

BACKGROUND: Uterine adenomyosis is a benign disease, common among women in their 40 and 50 s, characterised by ectopic endometrial tissue in the uterine myometrial layer. Adenomyosis causes infertility and has a negative effect on the outco…

Abstract Background : The prognosis of ovarian cancer is generally poor. To approach the onset of ovarian cancer, we investigated clinical characteristics and performed pathohistological examinations of organ specimens from ovarian cancer p…