Results 31 to 40 of about 88,308 (262)

Impact of Metastatic Patterns on Survival and Response to Therapy in Neuroblastoma

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background While the presence of metastases in neuroblastoma (NB) is a well‐established prognostic factor, the clinical significance of dissemination patterns and tumour burden and their impact on response and survival remains poorly understood.
Mariona Morell‐Daniel   +15 more
wiley   +1 more source

Single origin of sex chromosomes and multiple origins of B chromosomes in fish genus Characidium. [PDF]

open access: yesPLoS ONE, 2014
Chromosome painting with DNA probes obtained from supernumerary (B) and sex chromosomes in three species of fish genus Characidium (C. gomesi, C. pterostictum and C.
José Carlos Pansonato-Alves   +8 more
doaj   +1 more source

A Population‐Based Study on Childhood Aplastic Anemia—Incidence, Outcomes, and Health‐Related Quality of Life

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Childhood aplastic anemia (AA) is a rare disease, and both the disease itself and its treatment cause significant morbidity. We aimed to determine the contemporary incidence of childhood AA in Finland, to compare the clinical characteristics of AA against inherited bone marrow failure syndromes (IBMFS) and refractory cytopenia of ...
Lauri‐Matti Kulmala   +8 more
wiley   +1 more source

Genomic evidence reveals three W-autosome fusions in Heliconius butterflies.

open access: yesPLoS Genetics
Sex chromosomes are evolutionarily labile in many animals and sometimes fuse with autosomes, creating so-called neo-sex chromosomes. Fusions between sex chromosomes and autosomes have been proposed to reduce sexual conflict and to promote adaptation and ...
Nicol Rueda-M   +11 more
doaj   +1 more source

The Role of Chemotherapy in Pediatric Myoepithelial Carcinoma: A Systematic Review of the Literature

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Myoepithelial carcinoma (MEC) in pediatric patients is a rare and aggressive malignancy characterized by heterogeneous morphology and variable molecular features. The optimal role of chemotherapy remains unclear. We conducted a systematic review according to PRISMA 2020 guidelines to evaluate chemotherapy in pediatric and young‐adult patients ...
Marco Salvi   +7 more
wiley   +1 more source

Evolution of sex‐biased genes in Drosophila species with neo‐sex chromosomes: Potential contribution to reducing the sexual conflict

open access: yesEcology and Evolution
An advantage of sex chromosomes may be the potential to reduce sexual conflict because they provide a basis for selection to operate separately on females and males.
Anika Minovic, Masafumi Nozawa
doaj   +1 more source

BAZ1B is dispensable for H2AX phosphorylation on Tyrosine 142 during spermatogenesis

open access: yesBiology Open, 2015
Meiosis is precisely regulated by the factors involved in DNA damage response in somatic cells. Among them, phosphorylation of H2AX on Serine 139 (γH2AX) is an essential signal for the silencing of unsynapsed sex chromosomes during male meiosis. However,
Tyler J. Broering   +5 more
doaj   +1 more source

Diversity and complexity in neural organoids

open access: yesFEBS Letters, EarlyView.
Neural organoid research aims to expand genetic diversity on one side and increase tissue complexity on the other. Chimeroids integrate multiple donor genomes within single organoids. Self‐organising multi‐identity organoids, exogenous cell seeding, or enforced assembly of region‐specific organoids contribute to tissue complexity.
Ilaria Chiaradia, Madeline A. Lancaster
wiley   +1 more source

Kinetic activity of the sex chromosomes of Mormidea paupercula (Heteroptera: Pentatomidae)

open access: yesEuropean Journal of Entomology, 2010
In Mormidea paupercula (n = 6 + XY in males), the presence of a CMA3-bright band in the telomeric regions on both sex chromosomes allowed the analysis of the kinetic activity of the sex univalents and XY pseudobivalent at the first and second meiotic ...
Pablo Javier REBAGLIATI   +1 more
doaj   +1 more source

Bisection of the X chromosome disrupts the initiation of chromosome silencing during meiosis in Caenorhabditis elegans

open access: yesNature Communications, 2021
During meiosis, sex chromosomes show silenced gene expression that is disrupted when translocated to autosomes. Here, the authors engineer C. elegans with bisected X chromosomes and see active transcription in gonads, indicating continuity of sex ...
Yisrael Rappaport   +5 more
doaj   +1 more source

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