Results 81 to 90 of about 74,517 (259)

Globin-based redox signaling [PDF]

Worm, 2016
In recent years, moderate levels of reactive oxygen species (ROS) have become recognized as signaling cues that participate at all levels of cellular organization. Globins, with their redox-active heme iron and ubiquitous presence, seem ideally suited to participate in ROS metabolism.
De Henau, Sasha, Braeckman, Bart
openaire   +4 more sources

Cardiovascular Plasticity and Adaptation of High‐Altitude Birds and Mammals

Integrative Zoology, EarlyView.
This schematic depicts the cardiovascular adaptations of mammals and birds to high‐altitude hypoxia. It highlights key phenotypic changes in oxygen transport and cardiac responses, driven by molecular mechanisms including transcriptional regulation and genetic modifications.
Huishang She, Yanhua Qu
wiley   +1 more source

Eos negatively regulates human γ-globin gene transcription during erythroid differentiation. [PDF]

PLoS ONE, 2011
BACKGROUND: Human globin gene expression is precisely regulated by a complicated network of transcription factors and chromatin modifying activities during development and erythropoiesis.
Hai-Chuan Yu, Hua-Lu Zhao, Zhi-Kui Wu, Jun-Wu Zhang   +3 more
doaj   +1 more source

A New DNA Sequences Vector Space on a Genetic Code Galois Field [PDF]

The final version of the paper is published in the journal: MATCH Commun. Math. Comput. Chem. Volume 54 (2005), number 1 , pp. 3-28., 2004
A new n-dimensional vector space of the DNA sequences on the Galois field of the 64 codons (GF(64)) is proposed. In this vector space gene mutations can be considered linear transformations or translations of the wild type gene. In particular, the set of translations that preserve the chemical type of the third base position in the codon is a subgroup ...
arxiv  

Targeting IGF1‐Induced Cellular Senescence to Rejuvenate Hair Follicle Aging

Aging Cell, EarlyView.
Age‐related increases in IGF‐1 expression in the skin accelerate stem cell exhaustion and senescence by impairing SIRT1 function, ultimately driving hair follicle aging. Conversely, activating SIRT1, clearing senescent cells, or adopting dietary restriction can mitigate excessive IGF‐1 signaling and provide a promising strategy to rejuvenate hair ...
Yang Wang, Jian Yang, Yue Luo, Zhiqiang Zhao, Yawen Yuan, Juan Li, Yang Liu, Yong Yi, Xiaoke Xu, Yuankunyu Lan, Juan Zou, Qintong Li, Liang Wang, Yang Pan, Yuanhan Yang, Muzhao Xiong, Min Wu, Jinsong Li, Weiyuxin Li, Yujun Zhang, Yang Cao, Yi Zhu, Zhi‐Xiong Jim Xiao   +22 more
wiley   +1 more source

Age and Sex Effects on Blood Retrotransposable Element Expression Levels: Findings From the Population‐Based Rhineland Study

Aging Cell, EarlyView.
Retrotransposable element (RTE) expression increases with chronological and biological age and is negatively associated with heterochromatin regulators. Moreover, RTE expression shows sex‐specific differences, with higher levels in men and enrichment for immune‐related pathways.
Valentina Talevi, Hang‐Mao Lee, Dan Liu, Marc D. Beyer, Paolo Salomoni, Monique M. B. Breteler, N. Ahmad Aziz   +6 more
wiley   +1 more source

Reproductive functions and fertility preservation in men with sickle cell disease

Andrology, EarlyView.
Abstract Background Sickle cell disease (SCD) is a prevalent hereditary disorder with significant morbidity, including potential impacts on male fertility. This study aims to evaluate the semen parameters in men with SCD and assess the outcomes of fertility preservation strategies.
Clarisse Leblanc, Nathalie Sermondade, Diane Rivet‐Danon, Ludmilla Aworet‐Ogouma, Anna Ly, Guillaume Bachelot, Françoise Lionnet, Aline Santin, Anne‐Gael Cordier, Kamila Kolanska, Rachel Lévy, Isabelle Berthaut, Charlotte Dupont   +12 more
wiley   +1 more source

The Genetic Code Boolean Lattice [PDF]

Published in MATCH Commun. Math. Comput. Chem 52, 29-46. (2004), 2004
The algebraic structures of the genetic code are most important to obtain additional information about the semantic code and its applications. In this paper we define two dual Boolean codon lattices of the genetic code using hydrogen bond numbers and the chemical types of bases: purines and pyrimidines.
arxiv  

A Novel Lie Algebra of the Genetic Code over the Galois Field of Four DNA Bases [PDF]

arXiv, 2005
By starting from the four DNA bases order in the Boolean lattice, a novel Lie Algebra of the genetic code is proposed. Here, the principal partitions of the genetic code table were obtained as equivalent classes of quotient subspaces of the genetic code vector space over the Galois field of the four DNA bases.
arxiv  

The role of iron in normal and impaired testicular function

Andrology, EarlyView.
Abstract Iron plays a critical role in testicular physiology, impacting spermatogenesis, testosterone production, and overall testicular function. Iron homeostasis is maintained through systemic and cellular regulatory mechanisms, including hepcidin‐mediated systemic iron control and the iron‐responsive element/iron regulatory protein (IRE/IRP) system ...
Aileen Harrer, Esther G. Meyron‐Holtz, Andreas Meinhardt   +2 more
wiley   +1 more source