Yukiko Nakajo

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OBJECTIVE To describe the first case of delivery after the transfer of a single blastocyst derived from a vitrified mature human oocyte. DESIGN Case report. SETTING Private assisted reproduction clinic. PATIENT(S) A normal 31-year-old woman. INTERVENTION(S) An unsuccessful attempt was made to extract sperm from the patient's nonobstructive(More)
To examine the impact on development of derived embryos from smooth endoplasmic reticulum clusters (SERC) in human metaphase II (MII) oocytes. Retrospective analysis at Kyono ART Clinic. Comparison of embryological development, pregnancy, live birth and fetal malformation between oocytes with SERC (the SERC(+) group) and those without (the SERC(−) group) in(More)
Purpose : In human frozen immature oocytes, there has been little successful delivery. We examined the feasibility of vitrification solution including Taxol, cytoskeltal stabilizer. Methods : We set four experimental groups that immature oocytes has cumulus cells or not, or including Taxol or not in the vitrification solution. Frozen–thawed oocytes have(More)
Purpose: The aim of this study was to investigate the feasibility of using frozen-thawed testicular sperm as well as the timing of testicular sperm extraction (TESE) in patients with non-mosaic Klinefelter syndrome. Methods: Intracytoplasmic sperm injection (ICSI) was performed in six of 17 (35%) patients whose sperm was recovered by TESE. Multiple biopsies(More)
OBJECTIVE To present the effectiveness of diagnostic heterologous intracytoplasmic sperm injection (ICSI), mouse oocyte activation test (MOAT), and ICSI combined with assisted oocyte activation (AOA) in a globozoospermic patient. DESIGN A case report. SETTING A private IVF center, Japan. PATIENT(S) A patient with globozoospermia. INTERVENTION(S)(More)
OBJECTIVE To describe the delivery of a healthy female infant after intracytoplasmic sperm injection (ICSI) using pentoxifylline-activated sperm from a patient with Kartagener's syndrome. DESIGN Case report. SETTING Private assisted reproductive technology clinic in Japan. PATIENT(S) A couple with male factor infertility due to Kartagener's syndrome.(More)
This report describes six successful pregnancies (five healthy children from four deliveries and two miscarriages) with SrC1(2) oocyte activation using spermatozoa from nine patients with repeated fertilization failure. Oocytes were artificially activated by SrC1(2) 30 min after intracytoplasmic sperm injection (ICSI). Oocytes were placed in 10 mmol/l of(More)
To describe a rare case of a birth of dizygotic twins with different-sex infants from a single embryo transfer. A patient, who had her right ovary and tube removed, and her husband were treated with ICSI and a single embryo transfer. When a single fresh embryo was transferred on day 4, following oocyte retrieval using GnRH agonist-long protocol, two(More)
Purpose : To report the efficacy of the combined treatment of in vitro maturation (IVM) and testicular sperm extraction (TESE). Methods : A couple in which the wife had polycystic ovarian syndrome and the husband had severe oligozoospermia. Oocytes were cultured in vitro for maturation followed by oocytes pickup with natural cycle, and TESE was undergone(More)
To clarify the mechanism of the high incidence of ischemic heart disease in the diabetics, we studied the particle size of the lipoprotein with particular attention to the structural abnormality. Using high performance liquid chromatography, the particle size of the lipoprotein was determined with elution volume, which was precisely correlated with the(More)