Results 81 to 90 of about 647,962 (308)

From mice to humans—divergent strategies for intestinal homeostasis and regeneration

open access: yesFEBS Letters, EarlyView.
Recent advances such as organoid genome editing, xenotransplantation, imaging, and whole‐genome sequencing have enabled direct studies of human intestinal stem cells (ISCs). These studies reveal species‐specific features, including slower ISC proliferation, distinct injury responses, slower somatic mutation accumulation in humans, and an inverse ...
Keiko Ishikawa   +2 more
wiley   +1 more source

Structural insights and therapeutic targets in Acinetobacter baumannii capsule biosynthesis

open access: yesFEBS 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   +7 more
wiley   +1 more source

Effects of raclopride, dopamine receptor antagonist, in rat model of nicotine dependence

open access: yes, 2000
Effects of raclopride, a dopamine receptor antagonist, in a rat model of nicotine ...
Tessari M   +4 more
core   +1 more source

Modelling stem cell differentiation related processes—A practical overview for biologists

open access: yesFEBS Letters, EarlyView.
Stem cell differentiation is complex and difficult to control experimentally. This review introduces suitable computational modelling approaches that can support stem cell research, from mechanistic ODE and abstract models to multiscale and deep learning methods.
Ricco Zeegelaar   +4 more
wiley   +1 more source

Isolation and Characterization of Antagonist Bacteria from Chickpea Rhizosphere against Fusarium oxysporum f. sp. ciceris

open access: yes, 2017
Fourteen potential antagonist bacterial isolates were obtained from soil samples collected from the rhizospheric soil of healthy chickpea. Colony and morphological characterization revealed that all isolates were diversified and distinct from each other.
T. Ahmad   +11 more
core   +1 more source

GnRH agonists stop antagonist protocol versus GnRH antagonist protocol in poor ovarian responders undergoing IVF

open access: yes, 2022
Introduction and objective: This study aims to clarify if the GnRH agonist STOP-antagonist protocol versus the GnRH antagonist protocol can be useful in improving IVF (In vitro fertilization) outcomes in patients with poor ovarian response candidates for
Nazila Yamini   +5 more
core   +1 more source

Reconstructing enzyme evolution by protein engineering

open access: yesFEBS Letters, EarlyView.
Natural enzyme evolution can be retraced by protein engineering methods such as directed evolution, rational design, and ancestral sequence reconstruction. These approaches reveal how enzymes emerged from ligand‐binding scaffolds, developed varying substrate preferences, formed oligomeric complexes, adapted to environmental changes, and evolved novel ...
Lukas Drexler   +2 more
wiley   +1 more source

Decoding the dynamic extracellular matrix in cancer—3D models and bioscaffolds rewire the rules of tumor progression

open access: yesFEBS Letters, EarlyView.
Cancer progression is regulated by the dynamic matrix code of the tumor microenvironment, which influences cellular behavior and disease development. Importantly, matrix remodeling in three‐dimensional cancer models more accurately reflects in vivo conditions compared to conventional two‐dimensional systems.
Sylvia Mangani   +3 more
wiley   +1 more source

Quercetin promotes gastrointestinal motility and mucin secretion in loperamide-induced constipation of SD rats through regulation of the mAChRs downstream signal

open access: yesPharmaceutical Biology, 2018
Context: Quercetin (QCT) has been known as a potential therapeutic strategy for gastrointestinal diseases because it contributes to the stabilization of mast cells, the prevention of histamine release and modulation of CaCC chloride channel.
Ji Eun Kim   +9 more
doaj   +1 more source

Chemokine receptor CCR1: A new target for progressive kidney disease [PDF]

open access: yes, 2005
Infiltrating leukocytes are thought to contribute to the progression of kidney disease. Locally produced chemokines guide circulating leukocytes into the kidney, which renders therapeutic blockade of respective chemokine receptors on the leukocyte ...
Hans-Joachim Anders   +3 more
core   +1 more source

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