Results 61 to 70 of about 252,745 (293)

Widespread sex differences in gene expression and splicing in the adult human brain. [PDF]

, 2013
There is strong evidence to show that men and women differ in terms of neurodevelopment, neurochemistry and susceptibility to neurodegenerative and neuropsychiatric disease. The molecular basis of these differences remains unclear. Progress in this field
Ramasamy, Adaikalavan, Ryten, Mina, Ramasamy, A, Smith, C, Ryten, M, Trabzuni, D, Walker, R, Smith, Colin, Smith, C; id_orcid, Trabzuni, Daniah, Imran, S, Weale, M, Hardy, John, ?, ?, Weale, Michael E, Hardy, J, North American Brain Expression Consortium, Weale, ME, Imran, Sabaena, Walker, Robert   +19 more
core   +1 more source

Tau acetylation at K331 has limited impact on tau pathology in vivo

FEBS Letters, EarlyView.
We mapped tau post‐translational modifications in humanized MAPT knock‐in mice and in amyloid‐bearing double knock‐in mice. Acetylation within the repeat domain, particularly around K331, showed modest increases under amyloid pathology. To test functional relevance, we generated MAPTK331Q knock‐in mice.
Shoko Hashimoto, Yukio Matsuba, Mika Takahashi, Takaomi C. Saido   +3 more
wiley   +1 more source

Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system

FEBS Letters, EarlyView.
Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley   +1 more source

Hyperosmotic stress induces PARP1‐mediated HPF1‐dependent mono(ADP‐ribosyl)ation

FEBS Letters, EarlyView.
Sorbitol‐induced hyperosmotic stress rapidly induces reversible mono(ADP‐ribosyl)ation (MARylation) on PARP1 without the signs of genotoxic signaling. We show that PARP1 autoMARylation is HPF1 dependent and forms hydroxylamine‐resistant O‐glycosidic linkages.
Anna Georgina Kopasz, Mihály Mérey, Rebeka Vásárhelyi, Ramóna Pék, Victor Imburchia, László Henn, Adrián Kószó, Nicholas D. Lakin, Ivan Ahel, Sébastien Huet, Ágnes Czibula, Gyula Timinszky   +11 more
wiley   +1 more source

Differential replication dynamics for large and small Vibrio chromosomes affect gene dosage, expression and location

BMC Genomics, 2008
Background Replication of bacterial chromosomes increases copy numbers of genes located near origins of replication relative to genes located near termini.
Honda Takeshi, Izutsu Kaori, Dryselius Rikard, Iida Tetsuya   +3 more
doaj   +1 more source

Structural insights and therapeutic targets in Acinetobacter baumannii capsule biosynthesis

FEBS Letters, EarlyView.
Hypervirulent KL49 A. baumannii's capsular polysaccharide contains the nonulosonic acid 8‐epi‐Leg5,7Ac2, synthesized by epimerization via ElaA, ElaB, and ElaC. Crystal structures of ElaA, ElaB, and ElaC reveal their role in CMP‐Leg5,7Ac2 synthesis and regioselective C8 epimerization.
Woo Cheol Lee, Junho Jeong, Chae Yeong Lee, Hyunjoon Cho, Man Hwan Oh, Je Chul Lee, Jee‐Young Lee, Yangmee Kim   +7 more
wiley   +1 more source

A Universal Strategy for the Efficient Expression of Nanobodies in Pichia pastoris

Fermentation
In recent years, nanobodies have played an increasingly crucial role in virus neutralization, ELISA detection, and medical imaging. This study aimed to explore a universal expression strategy in Pichia pastoris using three nanobodies, denoted Va, Vb, and
Yiheng Zheng, Bingkun Li, Shida Zhao, Jiawei Liu, Ding Li   +4 more
doaj   +1 more source

Balanced gene dosage control rather than parental origin underpins genomic imprinting

Nature Communications, 2022
Here the authors investigate whether for imprinted genes the parent-of-origin of the expressed allele or rather appropriate gene dosage is more important for normal development.
Ariella Weinberg-Shukron, Raz Ben-Yair, Nozomi Takahashi, Marko Dunjić, Alon Shtrikman, Carol A. Edwards, Anne C. Ferguson-Smith, Yonatan Stelzer   +7 more
doaj   +1 more source

TRAIL‐PEG‐Apt‐PLGA nanosystem as an aptamer‐targeted drug delivery system potential for triple‐negative breast cancer therapy using in vivo mouse model

Molecular Oncology, EarlyView.
Aptamers are used both therapeutically and as targeting agents in cancer treatment. We developed an aptamer‐targeted PLGA–TRAIL nanosystem that exhibited superior therapeutic efficacy in NOD/SCID breast cancer models. This nanosystem represents a novel biotechnological drug candidate for suppressing resistance development in breast cancer.
Gulen Melike Demirbolat, Aslihan Kucuk, Omer Erdogan, Samed Ozer, Bensu Kozan, Tugba Cuceli, Erkan Gumus, Evrim Cevik, Ozge Cevik   +8 more
wiley   +1 more source

No current evidence for widespread dosage compensation in S. cerevisiae

eLife, 2016
Previous studies of laboratory strains of budding yeast had shown that when gene copy number is altered experimentally, RNA levels generally scale accordingly. This is true when the copy number of individual genes or entire chromosomes is altered.
Eduardo M Torres, Michael Springer, Angelika Amon   +2 more
doaj   +1 more source