Effects of Toluene and Formaldehyde on Oogenesis in Adult Female Mice by Layla A Kareem, Hiwa B Banna, Kameel M Naoom

“…Histological examination of the ovaries of the exposed mice (either to toluene or formaldehyde) revealed  an increase in thickness of zona pellucida of ovarian follicles, significant increase in the number of primary, secondary and Graffian follicles with decrease in the number of primordial follicles after inhalation  comparisons to the normal groups.     …”
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Stimulation of ZPC Production by Follicle-Stimulating Hormone in the Granulosa Cells of Japanese Quail (Coturnix Japonica) by Jianzhi Pan, Tomohiro Sasanami, Makoto Mori

“…Avian perivitelline membrane, an investment homologous to the zona pellucida of mammalian oocytes, is composed of two glycoproteins. …”
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A Concealed Problem: Submucous Cleft Palate and Treatment of Related Speech Disturbances by Mert Çalış, Figen Özgür

“…Besides the classical triad of bifid uvula, muscle diastasis (zona pellucida) and a notch at the posterior hard palate (defined by Calnan), the anatomical presentation of submucous cleft palate may differ. …”
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The plane of first cleavage is not related to the distribution of sperm components in the mouse. by Davies, T, Gardner, R

“…Lectins showed no discernible binding to the fertilization cone of mechanically denuded zygotes and very strong binding to the zona pellucida. Moreover, after general labelling of zygotes with either ConA or PHA, persisting surface lectin tended to be concentrated towards the cleavage plane. …”

Resolution of chiasmata in oocytes requires separase-mediated proteolysis. by Kudo, N, Wassmann, K, Anger, M, Schuh, M, Wirth, K, Xu, H, Helmhart, W, Kudo, H, McKay, M, Maro, B, Ellenberg, J, de Boer, P, Nasmyth, K

“…By expressing Cre recombinase from a zona pellucida promoter, we have deleted a floxed allele of separase specifically in mouse oocytes. …”

Effects of Toluene and Formaldehyde on Oogenesis in Adult Female Mice by Layla A Kareem, Hiwa B Banna, Kameel M Naoom

“…Histological examination of the ovaries of the exposed mice (either to toluene or formaldehyde) revealed  an increase in thickness of zona pellucida of ovarian follicles, significant increase in the number of primary, secondary and Graffian follicles with decrease in the number of primordial follicles after inhalation  comparisons to the normal groups.     …”
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Mammalian Oocyte Cryopreservation - Review by Ada Cean, Alexandru T. Bogdan, Nicolae Păcală, Alexandra Ivan, Daniela E. Ilie

“…The main factors affecting the viability of the oocyte are cryoprotectors, freezing method, disruption of meiotic spindle, zona pellucida hardening and oocyte maturation stage. …”
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POOR-QUALITY FRESH AND FROZEN-THAWED HUMAN CLEAVAGE EMBRYOS MAY HAVE A CLINICAL POTENTIAL AFTER AN EXTENDED CULTURE by Nafiseh Bahrampour

“…Their morphology was daily examined. Zona pellucida (ZP) birefringence, assessed by Polscope, and cell viability, by Hoechst/propidium iodide staining, were evaluated at the 5th day. …”
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Transcription of the human and rodent <it>SPAM1 / PH-20 </it>genes initiates within an ancient endogenous retrovirus by Dunn Catherine A, Mager Dixie L

“…SPAM1 protein is important for penetration of the cumulus cell layer surrounding the ovum, and is also involved in zona pellucida binding and sperm intracellular signalling. …”
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Effective protein inhibition in intact mouse oocytes through peptide nanoparticle-mediated antibody transfection by Ruichao Li, Zhen Jin, Leilei Gao, Peng Liu, Zhixia Yang, Dong Zhang

“…However, untill now no researchers have tried using this technique on mouse oocytes because the zona pellucida surrounding the oocyte membrane (vitelline membrane) is usually thought or proved to be a tough barrier to macromolecules such as antibodies and proteins. …”
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Simultaneous visualization of RNA transcripts and proteins in whole-mount mouse preimplantation embryos using single-molecule fluorescence in situ hybridization and immunofluoresce... by Rasmani Hazra, David L. Spector

“…Moreover, to simultaneously detect protein and enable RNA probe penetration for the combined IF/smRNA FISH technique, we performed IF before smRNA FISH. We removed the zona pellucida, used Triton X-100 to permeabilize the embryos, and did not use a proteinase digestion step so as to preserve the antigens. …”
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Trophectoderm growth and bilateral symmetry of the blastocyst in the mouse. by Gardner, R, Davies, T

“…The other was to mark the two ends of the bilateral axis with small oil drops in the zona pellucida in blastocysts whose polar trophectoderm was then labelled globally with fluorescent latex microspheres before culture. …”

Ultrastructural changes of immature bovine oocytes caused by freezing solution and freezing procedure by Thein, M., Haron, Abd Wahid, Yusoff, Rosnina, Sianturi, Riasari Gail

“…No significant changes in zona pellucida, perivitelline space, microvilli, mitochondria, cortical granules, vesicles, lipid droplets and germinal vesicles were observed in oocytes exposed to freezing solution. …”
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Chronological age enhances aging phenomena and protein nitration in oocyte by Pravin T. Goud, Pravin T. Goud, Pravin T. Goud, Anuradha P. Goud, Olivia G. Camp, David Bai, Bernard Gonik, Michael P. Diamond, Husam M. Abu-Soud, Husam M. Abu-Soud

“…They were assessed for zona pellucida dissolution time (ZPDT); ooplasmic microtubule dynamics (OMD); cortical granule (CG) status and spindle morphology (SM), as markers of oocyte quality. …”
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Embryo quality and chromosomal abnormality in embryos from couples undergoing assisted reproductive technology using preimplantation genetic screening by Mina Niusha, Seyed Ali Rahmani, Leila Kohan, Ladan Sadeghi, Mohammad Nouri, Hamid Reza Nejabati

“…For biopsy of blastomere, a laser was used to remove a significantly smaller portion of the zona pellucida. One blastomere was gently biopsied by an aspiration pipette through the hole. …”
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Cryopreservation of testicular and epididymal sperm: techniques and clinical outcomes of assisted conception by Bhushan K. Gangrade

“…When the number of sperm in a testicular biopsy sample is extremely low (e.g., 1-20 total sperm available), the use of an evacuated zona pellucida to store the cryopreserved sperm has been shown to be an effective approach.…”
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Sperm-Egg Interaction during Fertilization in Birds by Yoshinobu Ichikawa, Mei Matsuzaki, Gen Hiyama, Shusei Mizushima, Tomohiro Sasanami

“…We explain that the zona pellucida proteins (ZP1 and ZP3) in the perivitelline membrane play important roles in sperm-egg binding, induction of the acrosome reaction as well as sperm penetration by digestion of sperm protease. …”
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Simulation model for contraceptive management of the Assateague Island feral horse population using individual-based data by Ballou, J, Traylor-Holzer, K, Turner, A, Malo, A, Powell, D, Maldonado, J, Eggert, L

“…Since 1994, contraception via porcine zona pellucida vaccine has been used to control horse numbers, although herd reduction has been slower than initially expected, leading NPS to consider other management options. …”

A new hypothesis may explain human parthenogenesis and ovarian teratoma: A review study by Abdelmonem Awad Hegazy, Aiman Ibraheem Al-Qtaitat, Raafat Awad Hegazy

“…Here, we hypothesized that in some cases the secondary oocyte and first polar body enclosed in the zona pellucida may fuse together to form a single cell that restores the diploid number of chromosomes and initiates cell division to form PG. …”
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Exploring the Impact of Controlled Ovarian Stimulation and Non-Invasive Oocyte Assessment in ART Treatments by Romualdo Sciorio, Federica Cariati, Steven Fleming, Carlo Alviggi

“…The noninvasive approach mainly applied to determine oocyte and embryo competence has been, since the early days of IVF, the morphological evaluation of the mature cumulus-oocyte complex at the time of pickup, first polar body, zona pellucida thickness, perivitelline space and cytoplasm appearance. …”
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