Results 41 to 50 of about 729,910 (357)

A developmental framework linking neurogenesis and circuit formation in the Drosophila CNS

open access: yeseLife, 2021
The mechanisms specifying neuronal diversity are well characterized, yet it remains unclear how or if these mechanisms regulate neural circuit assembly.
Brandon Mark   +8 more
doaj   +1 more source

Cell Identification and Cell Lineage Analysis [PDF]

open access: yes, 2011
Caenorhabditis elegans is uniquely suited to the analysis of cell lineage patterns. C. elegans has a small number of somatic cells whose position and morphology are almost invariant from animal to animal. Because C. elegans is virtually transparent, cells can be identified in live animals using a simple bright-field microscopy technique, Nomarski ...
Claudiu A, Giurumescu   +1 more
openaire   +2 more sources

STOCHASTIC DYNAMICS OF CELL LINEAGE IN TISSUE HOMEOSTASIS. [PDF]

open access: yes, 2019
During epithelium tissue maintenance, lineages of cells differentiate and proliferate in a coordinated way to provide the desirable size and spatial organization of different types of cells.
Chen, Weitao, Nie, Qing, Qiu, Yuchi
core   +2 more sources

Human natural killer cell committed thymocytes and their relation to the T cell lineage. [PDF]

open access: yes, 1993
Recent studies have demonstrated that mature natural killer (NK) cells can be grown from human triple negative (TN; CD3-, CD4-, CD8-) thymocytes, suggesting that a common NK/T cell precursor exists within the thymus that can give rise to both NK cells ...
Lanier, LL   +3 more
core   +1 more source

GATA3 induces human T-cell commitment by restraining Notch activity and repressing NK-cell fate [PDF]

open access: yes, 2016
The gradual reprogramming of haematopoietic precursors into the T-cell fate is characterized by at least two sequential developmental stages. Following Notch1-dependent T-cell lineage specification during which the first T-cell lineage genes are ...
Damle, Sagar   +17 more
core   +2 more sources

Asymmetric thymocyte death underlies the CD4:CD8 T-cell ratio in the adaptive immune system [PDF]

open access: yes, 2013
It has long been recognized that the T-cell compartment has more CD4 helper than CD8 cytotoxic T cells, and this is most evident looking at T-cell development in the thymus.
Bains, Iren   +3 more
core   +1 more source

Sickle Cell Disease Is an Inherent Risk for Asthma in a Sibling Comparison Study

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Introduction Sickle cell disease (SCD) and asthma share a complex relationship. Although estimates vary, asthma prevalence in children with SCD is believed to be comparable to or higher than the general population. Determining whether SCD confers an increased risk for asthma remains challenging due to overlapping symptoms and the ...
Suhei C. Zuleta De Bernardis   +9 more
wiley   +1 more source

Within-host transmission strategies of transovarial, feminizing parasites of Gammarus duebeni [PDF]

open access: yes, 1998
The amphipod Gammarus duebeni harbours several species of vertically transmitted, feminizing microsporidian parasites. G. duebeni were collected from 3 localities in the UK. Animals from Budle Bay, Northumberland, were infected with Octosporea effeminans,
Dunn, A.M., Taneyhill, D.E., Terry, R.S.
core   +1 more source

Pathogenic Germline PALB2 and RAD50 Variants in Patients With Relapsed Ewing Sarcoma

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Approximately 10% of patients with Ewing sarcoma (EwS) have pathogenic germline variants. Here, we report two cases: first, a novel germline pathogenic variant in partner and localizer of BRCA2 (PALB2) in a patient with a late EwS relapse. Its impact on homologous recombination is demonstrated, and breast cancer risk is discussed.
Molly Mack   +12 more
wiley   +1 more source

Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM

open access: yesFEBS Letters, EarlyView.
Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
wiley   +1 more source

Home - About - Disclaimer - Privacy