Results 101 to 110 of about 7,369 (184)

Biosynthesis of H2S and Siderophores Targeting Gram‐Negative Bacterial Resistance to Reactive Oxygen Species

open access: yesAdvanced Science, Volume 12, Issue 45, December 4, 2025.
Discover how Gram‐negative bacteria develop resistance to reactive oxygen species, and how scientists aim to overcome this challenge. Abstract Reactive oxygen species (ROS) are a promising alternative bactericide. However, it is questioned that bacteria can potentially develop resistance to ROS, similar to their resistance against antibiotics and ...
Congyang Mao   +9 more
wiley   +1 more source

Single-enzyme biomineralization of cadmium sulfide nanocrystals with controlled optical properties [PDF]

open access: yes, 2016
Nature has evolved several unique biomineralization strategies to direct the synthesis and growth of inorganic materials. These natural systems are complex, involving the interaction of multiple biomolecules to catalyze biomineralization and template ...
Berger, Bryan W.   +4 more
core   +1 more source

Microvascular Health as a Key Determinant of Organismal Aging

open access: yesAdvanced Science, Volume 12, Issue 47, December 18, 2025.
Abstract Aging is a complex, multifaceted process affecting all organ systems, with vascular aging playing a central role in organismal health decline. Beyond its role in circulation, the vascular system acts as a dynamic interface between tissues, influencing countless physiological functions such as tissue regeneration and repair, immune responses ...
Mattia Cenciarini   +4 more
wiley   +1 more source

Habitat Diversity Sustains Ecosystem Functioning in Plateau Arid‐Region Wetlands

open access: yesEcology and Evolution, Volume 15, Issue 12, December 2025.
Habitat diversity underpins both biodiversity and functional biogeochemical processes in plateau arid‐region wetlands, thereby stabilizing ecosystem functioning. These functionally complementary habitats collectively drive critical ecosystem processes.
Chenyu Wang   +9 more
wiley   +1 more source

ON THE ROLE OF CYSTATHIONINE-γ-LYASE IN MODULATING TRANSSULFURATION PATHWAY IN THE LENS [PDF]

open access: yes
In Mammals transsulfuration pathway enables the conversion of homocysteine (Hcy), deriving from methionine (Met) transmetilation, into cysteine (Cys) through two steps, the first catalyzed by cystathionine β-synthase (CBS) and the second one by ...
CALVANI, ENRICA
core  

Associated bacteria affect sexual reproduction by altering gene expression and metabolic processes in a biofilm inhabiting diatom [PDF]

open access: yes, 2019
Diatoms are unicellular algae with a fundamental role in global biogeochemical cycles as major primary producers at the base of aquatic food webs. In recent years, chemical communication between diatoms and associated bacteria has emerged as a key factor
Bilcke, Gust   +9 more
core   +2 more sources

Enhancing Postharvest Quality of Fresh-Cut Changgen Mushrooms by Exogenous L-Cysteine Treatment: Aspects of Accumulating Amino Acids, Triggering Energy Metabolism and Enhancing Endogenous H2S Regulation

open access: yesFoods
As a rare and functional edible mushroom, the market potential of ready-to-eat fresh-cut Changgen mushrooms (Oudemansiella raphanipes) is booming in developing countries.
Xingchi Ma   +9 more
doaj   +1 more source

An Improved Two‐Step Collagenase Perfusion Protocol for Isolation of Mouse Primary Hepatocytes

open access: yesFuture Postharvest and Food, Volume 2, Issue 4, Page 474-477, December 2025.
An improved two‐step protocol for isolation of mouse primary hepatocytes by inserting needles into the portal vein and cutting of the inferior vena cava. ABSTRACT In metabolic dysfunction‐associated steatotic liver disease (MASLD) or diabetes mechanistic studies, cellular experiments are frequently required.
Xiaopeng Li
wiley   +1 more source

Ammonia toxicity to the brain and creatine. [PDF]

open access: yes, 2004
Symptoms of hyperammonemia are age-dependent and some are reversible. Multiple mechanisms are involved. Hyperammonemia increases the uptake of tryptophan into the brain by activation of the L-system carrier while brain glutamine plays a still undefined ...
Bachmann, C.   +4 more
core   +1 more source

Urothelium muscarinic activation phosphorylates CBS Ser227 via cGMP/PKG pathway causing human bladder relaxation through H 2 S production [PDF]

open access: yes, 2016
The urothelium modulates detrusor activity through releasing factors whose nature has not been clearly defined. Here we have investigated the involvement of H2S as possible mediator released downstream following muscarinic (M) activation, by using human ...
CIRINO, GIUSEPPE   +10 more
core   +1 more source

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