Results 111 to 120 of about 33,744 (220)

Conserved Asp233–Asp246 hydrogen bond modulates active site dynamics in class A β‐lactamases

Protein Science, Volume 35, Issue 10, October 2026.
Abstract Rigid enzymes catalyze chemical reactions by stabilizing the transition state through a specific conformation. Catalytic residues are precisely positioned, and enzyme dynamics are kept to a minimum. It is thought that conserved residues around the active site (second‐shell residues) play a crucial role in positioning catalytic residues. Asp233
Cristina V. Lopez‐Gallego, Monika Timmer, Jocelyne Vreede, Marcellus Ubbink   +3 more
wiley   +1 more source

H2S Is a Potential Universal Reducing Agent for Prx6‐Type Peroxiredoxins

Advanced Science
The absence of a universal reducing agent distinguishes the Prx6‐type subfamily of peroxiredoxins from the structurally similar Prx1‐type subfamily. A likely explanation for the lack of reactivity of Prx6‐type enzymes with common reducing agents is that ...
Lukas Lang, Laura Leiskau, Lea Bambach, Marcel Deponte   +3 more
doaj   +1 more source

Bacterial Contribution to Hydrogen Peroxide Decomposition in Lake Erie Cyanobacterial Harmful Algal Bloom Communities Is Dependent on Bloom Stage

Environmental Microbiology Reports, Volume 18, Issue 5, October 2026.
A seasonal time series metatranscriptome dataset suggests that neutralising hydrogen peroxide in Microcystis blooms requires a complex division of labour that is further complicated by seasonality and bloom development. ABSTRACT Cyanobacterial harmful algal blooms (cHABs) are expanding globally and often involve toxin‐producing species such as ...
Chelsea E. Donovan, Gabriel Padilla, Madison Ashbaugh, Sophie Bencivenga, Jordan Cibellis, Wilson Ritterpusch, Cameron Tierney, Justin D. Chaffin, Louie L. Wurch, Morgan M. Steffen   +9 more
wiley   +1 more source

SIRT6 Activation Improves Intervertebral Disc Health in the Aging Spine

Aging Cell, Volume 25, Issue 10, October 2026.
Our studies for the first time underscore the feasibility of long‐term SIRT6 activation as a pharmacological strategy to maintain the health of the intervertebral disc in the aging spine. ABSTRACT Aging is a critical risk factor for intervertebral disc degeneration, a major contributor to chronic low back pain.
Pranay Ramteke, Bahiyah Watson, Sanjana Jagannath, Sarah E. Bell, Mallory Toci, Olivia Ottone, Qinglin Wu, Oliver Abinader, Ramkrishna Mitra, John A. Collins, Ruteja A. Barve, Makarand V. Risbud   +11 more
wiley   +1 more source

The Role of EVs in the Aging Hematopoietic System

Aging Cell, Volume 25, Issue 10, October 2026.
Extracellular vesicles from aged bone marrow carry pro‐inflammatory cargo that drives blood stem cell decline, while youthful vesicles restore or maintain stem cell function. Circulating vesicles therefore represent both a readout of hematopoietic aging and a potential therapeutic route.
Esra G. Kosebent, Nathalie Havranek, Karoline Kollmann, Kristina Kirschner, Eszter Doma, Kavya Gupta   +5 more
wiley   +1 more source

Pathways of Epithelial Barrier Breakdown and Remodeling in Esophageal Organoids by Commonly Used Surfactants

Allergy, Volume 81, Issue 10, Page 3659-3672, October 2026.
This study shows that SDS and CAPB directly impair esophageal epithelial barrier integrity in primary EoE‐derived models. SDS induces stronger inflammatory, oxidative stress, and keratinization responses than CAPB. Both surfactants promote epithelial remodeling and partial epithelial‐mesenchymal transition (EMT), with CAPB showing a distinct ...
Ozge Ardicli, Duygu Yazici, Huseyn Babayev, Yagiz Pat, Manal Bel Imam, Hang Du, Hassan Melhem, Carina Beha, Laura Buergi, Anja Heider, Juan‐Felipe López, Sena Ardicli, Can Zeyneloğlu, Andrea Kreienbühl, Nino Stocker, Patrick Westermann, Christoph B. Messner, Mübeccel Akdis, Jan Hendrik Niess, Alain Schoepfer, Luc Biedermann, Cezmi A. Akdis, Swiss EoE Cohort Study Group, Patrick Aepli, Luc Biedermann, Ruggero Biral, Carine Blanchard, Lorenzo Botteselle, Simon Buetikofer, Emanuel Burri, Joachim Diebold, Annika Eckhold, Annett Franke, Michèle Frei, Thomas Greuter, Chantal Hasler, Wolfram Jochum, Tanja Kilchmann, Seraina Koller, Andrea Kreienbühl, Fritz Murray, Peter Netzer, Gabrielle Reichhart, Elodie Ristorcelli, Gerhard Rogler, Jean‐Benoit Rossel, Ekaterina Safroneeva, Catherine Saner, Christoph Schlag, Jon‐Duri Senn, Alain Schoepfer, Philipp Schreiner, Christine Sempoux, Dagmar Simon, Hans‐Uwe Simon, Alex Straumann, Sven Trelle, Achim Weber, Niels Willi, Marcel Zwahlen, Willem van de Veen   +60 more
wiley   +1 more source

CRISPR/Cas9‐mediated Genome‐editing Reveals 10 Testis‐enriched Genes and One Non‐testis‐enriched Gene are Dispensable for Male Fecundity in Mice

Andrology, Volume 14, Issue 7, Page 2150-2159, October 2026.
ABSTRACT Background More than 1000 genes have been identified as predominantly expressed in the human testis. Advances in gene editing technologies have enabled the rapid and efficient generation of genetically engineered mice. This approach facilitates the screening of genes essential for spermatogenesis by analyzing knockout mouse models.
Yumiao Qiu, Keisuke Shimada, Masahito Ikawa   +2 more
wiley   +1 more source

Peroxiredoxin 4 Involved in Spermatogenesis by Affecting Oxidative Stress and Ferroptosis

Andrology, Volume 14, Issue 7, Page 2329-2346, October 2026.
ABSTRACT Background The main functions of testes are sperm production and androgen secretion in testicular befitting microenvironment. Excessive level of the reactive oxygen species (ROS) from metabolism and cellular events can lead to oxidative stress (OS) and ferroptosis, which injure the functions of mitochondria and endoplasmic reticulum (ER) of ...
Shuning Yuan, Nini Wei, Weiwei Ma, Mengting Hu, Bei Zhang, Li Gao, Chao Gao, Xiaoyu Yang, Yan Meng, Jiayin Liu, Yugui Cui   +10 more
wiley   +1 more source

Transcriptomic and proteomic signatures underlying nymphal adaptation and foam production in the forage pest Mahanarva spectabilis

Insect Molecular Biology, Volume 35, Issue 5, Page 556-575, October 2026.
RNA‐seq and Batelli gland proteomics of fifth‐instar Mahanarva spectabilis nymphs reveal transcripts and proteins associated with xylem feeding, foam production and environmental interaction. Functional annotation identified genes involved in osmoregulation, detoxification, chemosensation and stress responses, while proteomic analysis confirmed ...
Monique da Silva Bonjour, Angelo José Rinaldi, Eulálio Gutemberg Dias dos Santos, Gabriely Teixeira Bhering Faria, Ana Márcia Escocard de Azevedo Manhães, Jorge Fernando Pereira, Alexander Machado Auad, Maria Goreti de Almeida Oliveira, Humberto Josué de Oliveira Ramos   +8 more
wiley   +1 more source

Malaria mosquito antimicrobial defence requires immunity and detoxification gene regulation by Lola

Insect Molecular Biology, Volume 35, Issue 5, Page 576-593, October 2026.
Malaria mosquito antimicrobial defence requires upregulation of lola. Attenuation of lola in the midgut of Anopheles albimanus mosquitoes inhibits the upregulation of immunity genes induced by challenge. Putative target genes of the Lola transcription factor were revealed by lola attenuation, including Cecropin‐C, Draper, PPAF2, Clip‐domain serine ...
Heidi Espadas‐Álvarez, Verónica Valverde‐Garduño   +1 more
wiley   +1 more source