Results 81 to 90 of about 25,717 (206)

Cytological features of penaut genome [PDF]

open access: yes, 2017
The genus Arachis is composed of 82 species (Krapovickas and Gregory 1994; Valls and Simpson 2005; Valls et al 2013; Santana and Valls 2015) mainly distributed within a large region of South America, which extends from the eastern foothills of the Andes ...
Chalup, Laura María Isabel   +6 more
core   +1 more source

Application Strategies of Bone Marrow Mesenchymal Stromal Cells in Bone‐Related Diseases

open access: yesCell Proliferation, EarlyView.
Engineered BMSCs and vesicles enhance therapy effects for bone diseases via multi‐strategic approaches. ABSTRACT Bone‐related diseases (e.g., osteoporosis, osteoarthritis and fractures) exhibit a rising global incidence, imposing significant burdens on both quality of life and healthcare systems.
Xuemei Long   +6 more
wiley   +1 more source

PhpCNF-Y transcription factor infiltrates heterochromatin to generate cryptic intron-containing transcripts crucial for small RNA production

open access: yesNature Communications
The assembly of repressive heterochromatin in eukaryotic genomes is crucial for silencing lineage-inappropriate genes and repetitive DNA elements. Paradoxically, transcription of repetitive elements within constitutive heterochromatin domains is required
Manjit Kumar Srivastav   +10 more
doaj   +1 more source

Constitutive heterochromatin polymorphisms in human chromosomes identified by whole comparative genomic hybridization

open access: yesEuropean Journal of Histochemistry, 2011
Whole comparative genomic hybridization (W-CGH) is a new technique that reveals cryptic differences in highly repetitive DNA sequences, when different genomes are compared using metaphase or interphase chromosomes.
M.I. Dávila-Rodríguez   +6 more
doaj   +1 more source

A guide to the types, structures, and multifaceted functions of matrix metalloproteinases in cancer

open access: yesThe FEBS Journal, EarlyView.
Matrix metalloproteinases (MMPs) orchestrate cancer progression and metastasis through proteolytic and non‐proteolytic actions. By remodeling the tumor microenvironment, enhancing growth factor availability, and modulating cell behavior, MMPs promote proliferation, migration or invasion, and epithelial‐to‐mesenchymal transition. Alongside extracellular
Zoi Piperigkou   +4 more
wiley   +1 more source

Proteostasis of organelles in aging and disease

open access: yesThe FEBS Journal, EarlyView.
Cells rely on regulated proteostasis mechanisms to keep their internal compartments functioning properly. When these mechanisms fail, damaged proteins accumulate, disrupting organelles, such as the nucleus, mitochondria, endoplasmic reticulum, Golgi, and lysosomes, as well as membraneless organelles, such as stress granules, processing bodies, the ...
Yara Nabawi   +5 more
wiley   +1 more source

Molecular characterization of constitutive heterochromatin in three species of Trypoxylon (Hymenoptera, Crabronidae, Trypoxylini) by CMA3/DAPI staining

open access: yesComparative Cytogenetics, 2011
Previous cytogenetic analyses in Trypoxylon Latreille, 1796 have been basically restricted to C-banding. In the present study, base-specific CMA3 and DAPI fluorochrome staining were used to characterize the constitutive heterochromatin in three ...
Rodolpho Menezes   +3 more
doaj   +1 more source

Intra-specific variability and unusual organization of the repetitive units in a satellite DNA from Rana dalmatina: molecular evidence of a new mechanism of DNA repair acting on satellite DNA. [PDF]

open access: yes, 2006
We have characterized the S1 satellite from eight European populations of Rana dalmatina by Southern blot, cloning and a new method that determines the sequence variability of repetitive units in the genome.
CHINALI, GIANNI   +2 more
core   +1 more source

Constitutive Heterochromatin Polymorphisms in Children with Acute Lymphoblastic Leukemia

open access: yesPediatric Hematology and Oncology, 1993
The C-band heterochromatin polymorphisms of chromosomes 1, 9, and 16 were studied on peripheral lymphocytes of 67 children with acute lymphoblastic leukemia (ALL) and 50 control individuals. A statistically significant difference between patients and controls was found for large heterochromatin regions (level 3) of chromosomes 1 and 9 (P < 0.001) and ...
TSEZOU, A   +5 more
openaire   +4 more sources

New insights into the putative XX/XY sex chromosomal system in blue‐eyed red‐fin pleco Hypostomus soniae (Siluriformes, Loricariidae)

open access: yesJournal of Fish Biology, EarlyView.
Abstract Blue‐eyed red‐fin pleco Hypostomus soniae (family Loricariidae) presented a putative sex system XX/XY in early stage. Aiming to explore the inter‐populational karyotypic variation and proposed emergence of the XX/XY system, we studied 13 H. soniae individuals (6 males, 7 females) from the Tapajós River.
Luan Aércio Melo Maciel   +6 more
wiley   +1 more source

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