Results 121 to 130 of about 42,553 (305)

Hexavalents in spermatocytes of Robertsonian heterozygotes between Mus m. domesticus 2n 26 from the Vulcano and Lipari Islands (Aeolian Archipelago, Italy) [PDF]

, 2018
The size and shape of the chromosomes, as well as the chromosomal domains that compose them, are determinants in the distribution and interaction between the bivalents within the nucleus of spermatocytes in prophase I of meiosis.
Eliana Ayarza, Emanuela Solano, Ernesto Capanna, Jesús Page, Raúl Fernández-Donoso, Riccardo Castiglia, Soledad Berríos   +6 more
core   +3 more sources

A new karyotypic formula for the genus Amphisbaena (Squamata: Amphisbaenidae) [PDF]

Phyllomedusa: Journal of Herpetology, 2010
To contribute to the knowledge of chromosome evolution in Amphisbaena, we describe the karyotype constitution and the NOR location of Amphisbaena bolivica Mertens, 1929.
Camila Falcione, Alejandra Hernando
doaj  

Massive gene amplification on a recently formed Drosophila Y chromosome. [PDF]

, 2019
Widespread loss of genes on the Y is considered a hallmark of sex chromosome differentiation. Here we show that the initial stages of Y evolution are driven by massive amplification of distinct classes of genes. The neo-Y chromosome of Drosophila miranda
Bachtrog, Doris, Bracewell, Ryan, Mahajan, Shivani   +2 more
core   +1 more source

Pregnancy Outcomes and Postnatal Health From Transferred Mosaic Embryos Following Preimplantation Genetic Testing for Aneuploidy

iNew Medicine, EarlyView.
This illustration synthesizes the methods and conclusion of this study, demonstrating that the transfer of mosaic embryos following reimplantation genetic testing for aneuploidy does not increase the risk to postnatal health. ABSTRACT Next‐generation sequencing (NGS) has increased the detection of mosaic embryos during preimplantation genetic testing ...
Lili Chen, Dehuan Huang, Jingcheng Sang, Yiqi Yin, Caiyun Wu, Yan Hao, Dawei Chen, Zhiguo Zhang, Yunxia Cao, Ri‐Cheng Chian, Ping Zhou   +10 more
wiley   +1 more source

First Chromosomal Analysis in Hepsetidae (Actinopterygii, Characiformes): Insights into Relationship between African and Neotropical Fish Groups

Frontiers in Genetics, 2017
Hepsetidae is a small fish family with only the genus Hepsetus, with six described species distributed throughout the South, Central and Western regions of Africa, showing a close relationship with the Alestidae and some Neotropical fish families ...
Pedro C. Carvalho, Ezequiel A. de Oliveira, Ezequiel A. de Oliveira, Luiz A. C. Bertollo, Cassia F. Yano, Claudio Oliveira, Eva Decru, Oladele I. Jegede, Terumi Hatanaka, Thomas Liehr, Ahmed B. H. Al-Rikabi, Marcelo de B. Cioffi   +11 more
doaj   +1 more source

Chromosome complement and meiosis in three species of the Neotropical bug genus Antiteuchus (Heteroptera, Pentatomidae, Discocephalinae) [PDF]

, 2006
Orcein staining of spermatocytes was used to study the meiotic behavior of holocentric chromosomes in three member of the genus Antiteuchus (commonly known as stink bugs). We describe and illustrate the karyotype of Antiteuchus mixtus, A. sepulcralis and
de Souza, Maria José, Lanzone, Cecilia
core   +2 more sources

Klippel‐Trénaunay‐Weber Syndrome: Prenatal Diagnosis and Review of the Literature

Journal of Clinical Ultrasound, Volume 53, Issue 3, Page 535-546, March/April 2025.
This meta‐analysis demonstrates the high diagnostic accuracy of SZ‐CEUS for differentiating between malignant and benign focal liver lesions, as well as for HCC from non‐HCC lesions. The study shows better performance for smaller lesions and those with a higher proportion of malignancy.
Giuliana Orlandi, Laura Sarno, Antonio Angelino, Mariarosaria Motta, Raffaella Di Girolamo, Luigi Carbone, Marika Rovetto, Laura Letizia Mazzarelli, Gabriella Sglavo, Francesco D' Antonio, Ilenia Mappa, Daniele Di Mascio, Giuseppe Rizzo, Giuseppe Maria Maruotti   +13 more
wiley   +1 more source

Karyotypic Diversity and Evolution in a Sympatric Assemblage of Neotropical Electric Knifefish

Frontiers in Genetics, 2018
Chromosome changes can perform an important role in speciation by acting as post-zygotic reproductive barriers. The Neotropical electric fish genus Brachyhypopomus (Gymnotiformes, Hypopomidae) has 28 described species, but cytogenetic data are hitherto ...
Adauto L. Cardoso, Julio C. Pieczarka, Julio C. Pieczarka, William G. R. Crampton, Jonathan S. Ready, Wilsea M. B. de Figueiredo Ready, Joseph C. Waddell, Jonas A. de Oliveira, Cleusa Y. Nagamachi, Cleusa Y. Nagamachi   +9 more
doaj   +1 more source

A Novel Fetal Intracranial Measurement Contributing to the Differential Diagnosis of Fetal Microcephaly

Journal of Ultrasound in Medicine, EarlyView.
Objectives To evaluate the value of the thickness of the frontal lobe (TFL) and foramen magnum‐to‐cranium distance (FCD) for predicting poor neurodevelopmental outcomes in fetuses with a small head circumference (HC). Methods This retrospective observational study included 39 fetuses with HC < −2 standard deviations (SD) and 592 prospectively collected
Xi Du, Rong Zhu, HongJia Li, Ying Zhao, LinLin Wu, Hong Pan, YiNan Ma, XinLin Hou, JunYa Chen   +8 more
wiley   +1 more source

Differentiation Syndrome and Sweet Syndrome‐Like Overlap Following Venetoclax–Azacytidine and G‐CSF Therapy

JEADV Clinical Practice, EarlyView.
ABSTRACT Differentiation syndrome (DS) and Sweet syndrome (SS) are inflammatory complications mediated by cytokine dysregulation, classically associated with therapies that promote myeloid differentiation or cytokine release. While DS has been primarily linked to all‐trans retinoic acid (ATRA) and IDH inhibitors, recent evidence suggests that ...
Katerina Grafanaki, Maria Gerbesi, Zoe Apalla, Dimitrios Tsokanas, Efstathia Pasmatzi, Alexandros Spyridonidis, Maria Liga   +6 more
wiley   +1 more source