Zona pellucida birefringence evaluation
نویسندگان
چکیده
منابع مشابه
Evaluation of zona pellucida birefringence intensity during in vitro maturation of oocytes from stimulated cycles
BACKGROUND This study evaluated whether there is a relationship between the zona pellucida birefringence (ZP-BF) intensity and the nuclear (NM) and cytoplasmic (CM) in vitro maturation of human oocytes from stimulated cycles. RESULTS The ZP-BF was evaluated under an inverted microscope with a polarizing optical system and was scored as high/positive (when the ZP image presented a uniform and ...
متن کامل1 Zona Pellucida Glycoproteins
Abbreviations: ZP, zona pellucida; ZPG, ZP glycoprotein; VE, vitelline envelope; VEG, VE glycoprotein; mZP, mouse ZP; hZP, human ZP; SS, signal sequence; CTP, C-terminal propeptide; CFCS, consensus furin cleavage-site; TMD, transmembrane domain; ZPD, ZP domain; NTS, N-terminal subdomain; CTS, C-terminal subdomain; EHP, external hydrophobic patch; IHP, internal hydrophobic patch; CP, charged pat...
متن کاملO-11: Zona Pellucida Birefringence and Meiotic Spindle Visualization of Human Oocytes Are Not Influenced by In Vitro Maturation Technology
Background: In vitro maturation (IVM) is a promising treatment option for certain infertile women. Nowadays, with the aid of the Polscope, it has become possible to evaluate zona pellucida (ZP) and spindle as parameters of oocyte quality. The goal was to investigate the relationship between the presence of the meiotic spindle and ZP birefringence with morphology of the in vivo and in vitro matu...
متن کاملZona pellucida birefringence score and meiotic spindle visualization in relation to embryo development and ICSI outcomes.
The meiotic spindle and the zona pellucida exhibit molecular order when imaged with polarized optics. This study aimed to investigate possible factors contributing to the zona pellucida birefringence score and meiotic spindle visualization, and to evaluate whether these structures may predict intracytoplasmic sperm injection outcomes. Oocytes were divided into groups according to zona pellucida...
متن کاملDoes women’s age influence zona pellucida birefringence of metaphase ΙΙ oocytes in in-vitro maturation program?
BACKGROUND In vitro maturation (IVM) is a promising treatment option for certain infertile women. Nowadays, with the aid of PolScope, it has become possible to evaluate zona pellucida (ZP) characteristics as a parameter of oocyte quality. Moreover, quality of oocytes can be influenced by many factors, such as patient's age. The PolScope system is a non-invasive technique to assess birefringent ...
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ژورنال
عنوان ژورنال: JBRA Assisted Reproduction
سال: 2013
ISSN: 1518-0557
DOI: 10.5935/1518-0557.20130075