The diversity of insects has been the focus of many investigations. Research in the early embryonic developmental mechanism of silkworm will promote understanding in early embryonic developmental mechanism of other insects. This paper reviews the differences in early embryonic development of silkworm and Drosophila from both morphology and gene content level. The results not only provide evidences for the study of early embryonic development mechanism in silkworm, but also give clues for the study of insects diversity.
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http://dx.doi.org/10.1360/yc-006-1173 | DOI Listing |
Int J Mol Sci
January 2025
Department of Developmental and Regenerative Biology, Medical Research Institute, Institute of Science Tokyo, Tokyo 113-8510, Japan.
The eye primordium of vertebrates initially forms exactly at the side of the head. Later, the eyeball architecture is tuned to see ahead with better visual acuity, but its molecular basis is unknown. The position of both eyes in the face alters in patients with holoprosencephaly due to () mutations that disturb the development of the ventral midline of the neural tube.
View Article and Find Full Text PDFAnimals (Basel)
January 2025
Endangered Species Conservation via Assisted Reproduction (ESCAR) Lab, Institute of Molecular and Cell Biology (IMCB), Agency for Science, Technology and Research (A*STAR), 61 Biopolis Drive, Proteos, Singapore 138673, Singapore.
A time-lapse live embryo monitoring system provides a powerful approach to recording dynamic developmental events of cultured embryos in detail. By obtaining continuous short-interval images, blastocyst formation can be predicted and embryos can be selected. The objective of this study was to investigate the morphokinetic parameters of fishing cat-domestic cat interspecies somatic cell nuclear transfer (iSCNT) embryos from one-cell to blastocyst stages, and in particular, the cleavage patterns of the first division in iSCNT and IVF embryos, as these play a central role in euploidy.
View Article and Find Full Text PDFCancers (Basel)
January 2025
Department of Pathology, Microbiology and Immunology, New York Medical College, Valhalla, NY 10595, USA.
The HOX gene family encodes for regulatory transcription factors that play a crucial role in embryogenesis and differentiation of adult cells. This highly conserved family of genes consists of thirty-nine genes in humans that are located in four clusters, A-D, on different chromosomes. While early studies on the HOX gene family have been focused on embryonic development and its related disorders, research has shifted to examine aberrant expression of HOX genes and the subsequent implication in cancer prediction and progression.
View Article and Find Full Text PDFAnn Clin Lab Sci
November 2024
Reproductive Medicine Centre, Shenzhen Maternity and Child Healthcare Hospital, The First School of Clinical Medicine, Southern Medical University, Shenzhen, China
Objective: Anti-Müllerian hormone (AMH) belongs to the transforming growth factor-β superfamily. Recent evidence shows that AMH and its type II receptor (AMHRII) are expressed by the placenta at term. The physiological role of AMH in trophoblast invasion and migration remains to be elucidated.
View Article and Find Full Text PDFTheriogenology
January 2025
Key Laboratory of Animal Genetics, Breeding and Reproduction in the Plateau Mountainous Region, Ministry of Education, Guizhou University, Guiyang, 550025, China; Key Laboratory of Animal Genetics, Breeding and Reproduction of Guizhou Province, Guiyang, 550025, China; College of Animal Science, Guizhou University, Guiyang, 550025, China. Electronic address:
Oocyte quality can affect mammal fertilization rate, early embryonic development, pregnancy maintenance, and fetal development. Oxidative stress induced by reactive oxygen species (ROS) is one of the most important causes of poor oocyte maturation in vitro. To reduce the degree of cellular damage caused by ROS, supplementation with the antioxidant N-Acetyl-L-cysteine (NAC) serves as an effective pathway to alleviate glutathione (GSH) depletion during oxidative stress.
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