Objective: Embryonic chromosomal abnormality is one of the main reasons for in vitro fertilization (IVF) failure. This study aimed at evaluating the value of Fluorescence in-situ Hybridization (FISH)-based Preimplanta...Objective: Embryonic chromosomal abnormality is one of the main reasons for in vitro fertilization (IVF) failure. This study aimed at evaluating the value of Fluorescence in-situ Hybridization (FISH)-based Preimplantation Genetic Diagnosis (PGD) in screening for embryonic chromosomal abnormality to increase the successful rate of IVF. Method: Ten couples, four with high risk of chromosomal abnormality and six infertile couples, underwent FISH-based PGD during IVF procedure. At day 3, one or two blastomeres were aspirated from each embryo. Biopsied blastomeres were examined using FISH analysis to screen out embryos with chromosomal abnormalities. At day 4, embryos without detectable chromosomal abnormality were transferred to the mother bodies as in regular IVF. Results: Among 54 embryos screened using FISH-based PGD, 30 embryos were detected to have chromosomal abnormalities. The 24 healthy embryos were implanted, resulting in four clinical pregnancies, two of which led to successful normal birth of two healthy babies; one to ongoing pregnancy during the writing of this article; and one to ectopic pregnancy. Conclusion: FISH-based PGD is an effective method for detecting embryonic chromosomal abnormality, which is one of the common causes of spontaneous miscarriages and chromosomally unbalanced offsprings.展开更多
高危型人乳头状瘤病毒(high risk human papillomavirus,hr-hpv)感染已被流行病学和生物学证明是子宫颈癌及癌前病变发病的主要危险因素[1-2],但中国各地子宫颈癌中hpv感染及型别分布情况可能存在较大差异[3].本研究对1 088例浙江省妇女...高危型人乳头状瘤病毒(high risk human papillomavirus,hr-hpv)感染已被流行病学和生物学证明是子宫颈癌及癌前病变发病的主要危险因素[1-2],但中国各地子宫颈癌中hpv感染及型别分布情况可能存在较大差异[3].本研究对1 088例浙江省妇女hpv感染的流行病学进行调查,以期了解hpv感染现况,为宫颈癌的防治提供基础数据.展开更多
文摘Objective: Embryonic chromosomal abnormality is one of the main reasons for in vitro fertilization (IVF) failure. This study aimed at evaluating the value of Fluorescence in-situ Hybridization (FISH)-based Preimplantation Genetic Diagnosis (PGD) in screening for embryonic chromosomal abnormality to increase the successful rate of IVF. Method: Ten couples, four with high risk of chromosomal abnormality and six infertile couples, underwent FISH-based PGD during IVF procedure. At day 3, one or two blastomeres were aspirated from each embryo. Biopsied blastomeres were examined using FISH analysis to screen out embryos with chromosomal abnormalities. At day 4, embryos without detectable chromosomal abnormality were transferred to the mother bodies as in regular IVF. Results: Among 54 embryos screened using FISH-based PGD, 30 embryos were detected to have chromosomal abnormalities. The 24 healthy embryos were implanted, resulting in four clinical pregnancies, two of which led to successful normal birth of two healthy babies; one to ongoing pregnancy during the writing of this article; and one to ectopic pregnancy. Conclusion: FISH-based PGD is an effective method for detecting embryonic chromosomal abnormality, which is one of the common causes of spontaneous miscarriages and chromosomally unbalanced offsprings.
文摘高危型人乳头状瘤病毒(high risk human papillomavirus,hr-hpv)感染已被流行病学和生物学证明是子宫颈癌及癌前病变发病的主要危险因素[1-2],但中国各地子宫颈癌中hpv感染及型别分布情况可能存在较大差异[3].本研究对1 088例浙江省妇女hpv感染的流行病学进行调查,以期了解hpv感染现况,为宫颈癌的防治提供基础数据.
