Results 41 to 50 of about 17,774 (206)

Generation of Artificial Gamete and Embryo From Stem Cells in Reproductive Medicine

Frontiers in Bioengineering and Biotechnology, 2020
In addition to the great growing need for assisted reproduction technologies (ART), additional solutions for patients without functional gametes are strongly needed.
Pu-Yao Zhang, Pu-Yao Zhang, Yong Fan, Tao Tan, Tao Tan, Yang Yu, Yang Yu   +6 more
doaj   +1 more source

Retinoblastoma and its binding partner MSI1 control imprinting in Arabidopsis. [PDF]

PLoS Biology, 2008
Parental genomic imprinting causes preferential expression of one of the two parental alleles. In mammals, differential sex-dependent deposition of silencing DNA methylation marks during gametogenesis initiates a new cycle of imprinting. Parental genomic
Pauline E Jullien, Assaf Mosquna, Mathieu Ingouff, Tadashi Sakata, Nir Ohad, Frédéric Berger   +5 more
doaj   +1 more source

Heat stress in spermatogenesis: a redox‐dependent decision network linking ROS, autophagy, and regulated cell death

Biological Reviews, EarlyView.
ABSTRACT Heat stress (HS) is an increasing threat to male reproductive health, disrupting spermatogenesis through complex and interdependent cellular responses within the seminiferous epithelium. Although excessive reactive oxygen species (ROS) production is a hallmark of HS, ROS also act as central regulators of cell fate decisions beyond their role ...
Ribrio Ivan Tavares Pereira Batista
wiley   +1 more source

The effect of L-carnitine in reactive oxygen species reduction and apoptotic gene expression in mice after cyclophosphamide: An experimental study

International Journal of Reproductive BioMedicine
Background: Cyclophosphamide (CP), a utilized anticancer drug, is known to cause infertility in women. However, L-carnitine (LC), an antioxidant, has been shown to offer protective benefits against infertility. Objective: This study aimed to evaluate the
Majid Almasi, Golnaz Shafiei, Hossein Nikzad, Mohammad Karimian, Ghazaleh Moshkdanian   +4 more
doaj   +1 more source

Sexual reproduction of Nausithoe aurea (Scyphozoa, Coronatae). Gametogenesis, egg release, embryonic development, and gastrulation

Scientia Marina, 2001
The structure of the ovaries and testes of Nausithoe aurea, reared in the laboratory, is described to update the knowledge of coronate scyphomedusae gametogenesis and early development. The testis is similar to those of other scyphozoans.
André C. Morandini, Fábio L. da Silveira   +1 more
doaj   +1 more source

Piwi1 is essential for gametogenesis in mollusk Chlamys farreri [PDF]

PeerJ, 2017
Piwi (P-element induced wimpy testis) is an important gene involved in stem cell maintenance and gametogenesis in vertebrates. However, in most invertebrates, especially mollusks, the function of Piwi during gametogenesis remains largely unclear.
Xiaoshi Ma, Aichang Ji, Zhifeng Zhang, Dandan Yang, Shaoshuai Liang, Yuhan Wang, Zhenkui Qin   +6 more
doaj   +2 more sources

Oogenesis and germinal bed morphology of the brown anole (A. sagrei)

Developmental Dynamics, EarlyView.
Abstract Background The brown anole is a model species of the genus Anolis, a squamate (encompassing lizards and snakes) group widely studied in evolutionary, behavioral, and developmental biology. Full genome annotation, the establishment of gene editing techniques, and comprehensive description of reproductive tract morphology and embryogenesis in ...
Bonnie K. Kircher, Antonia Weberling, Erin J. Vance, Natalia A. Shylo, Katherine Starr, Zoe B. Griffin, Hannah Wilson, Melainia McClain, Florian Hollfelder, Suzannah A. Williams, Thomas J. Sanger, Richard R. Behringer, Paul A. Trainor   +12 more
wiley   +1 more source

The effects of ovarian encapsulation with alginate hydrogel on morphology and follicular count of vitrified mouse ovary

Fiyz̤, 2019
Background: Ovarian tissue cryopreservation is a way of preserving fertility in women with cancer and premature ovarian failure. Maintenance of follicular reserve is mandatory after ovary cryopreservation. This study was performed to determine the effect
Shirazi-Tehrani A , Mazoochi T , Akhavan-Taheri M, Salehnia M   +3 more
doaj  

Using mariculture as a breeding site: reproduction of Hypleurochilus fissicornis (Actinopterygii: Blenniidae)

Scientia Marina, 2015
Mariculture in estuaries provides substrate for colonization by fouling organisms, thus attracting small cryptic fish species hitherto unknown in this environment.
Bianca Possamai, Luís Fernando Fávaro
doaj   +1 more source

A shining starlet: Nematostella vectensis as a model for developmental, regenerative, and comparative biology

Developmental Dynamics, EarlyView.
Abstract The sea anemone, Nematostella vectensis, has been used as a model organism in developmental biology studies for many years. This estuarine species has the notable capacity to regenerate its full body plan from small pieces throughout life. Nematostella have been described as having a great degree of cellular plasticity.
Patrick A. Lewis, Zachary Horowitz, Michael Shribak, Karen Echeverri   +3 more
wiley   +1 more source