Results 131 to 140 of about 448,144 (397)

Targeting Senescence with Apigenin Improves Chemotherapeutic Efficacy and Ameliorates Age‐Related Conditions in Mice

open access: yesAdvanced Science, EarlyView.
As a plant‐derived flavonoid, apigenin directly targets PRDX6 to inhibit its PLA2 activity, blocking HSPA8 activation and disturbing its interactions with ATM and p38MAPK in senescent cells. By dampening wide spectrum expression of the SASP, apigenin prevents loss of tissue homeostasis, improves organ function, and alleviates multiple age‐related ...
Hongwei Zhang   +10 more
wiley   +1 more source

Selective and Sensitive Fluorescence Aptamer Biosensors of Adenosine Triphosphate

open access: yesNanomaterials and Nanotechnology, 2016
A fluorescence resonance energy transfer (FRET)- based aptamer biosensor (aptasensor) for sensitive determination of adenosine triphosphate (ATP) was developed.
Chao Meng   +4 more
doaj   +1 more source

A Receptor Component of the Chloroplast Protein Translocation Machinery [PDF]

open access: yes, 1994
The chloroplast outer envelope protein OEP86 functions as a receptor in precursor protein translocation into chloroplasts. Sequence analysis suggests that the precursor of OEP86 is directed to the chloroplast outer envelope by a cleavable, negatively ...
Heemeyer, Frank   +4 more
core   +1 more source

Thesis: The Effects of Hypoxia, Metabolic Restriction and Magnetic Fields on Chromosome Instability and Karyotype Contraction in Cancer Cell Lines [PDF]

open access: yesarXiv, 2014
Background: Biological effects of extra-low-frequency (ELF) magnetic fields (MFs) have lacked a credible mechanism of interaction between MFs and living material. Objectives: To examine the effect of ELF-MFs on cancer cells. Methods: Five cancer cell lines were exposed to ELF-MFs within the range of 0.025-5 microTesla, and the cells were examined for ...
arxiv  

Simultaneous Monitoring of Tyrosinase and ATP in Thick Brain Tissues Using a Single Two‐Photon Fluorescent Probe

open access: yesAdvanced Science, EarlyView.
A single dual‐emission two‐photon fluorescent probe is designed for simultaneously tracking tyrosinase (TYR) and adenosine triphosphate (ATP). With the help of this probe, the intricate correlation and regulatory mechanism between TYR and ATP during oxidative stress is uncovered.
Hong Huang   +12 more
wiley   +1 more source

Antidipsogenic effects of central adenosine-5'-triphosphate

open access: yesBrazilian Journal of Medical and Biological Research, 2009
Besides other physiological functions, adenosine-5'-triphosphate (ATP) is also a neurotransmitter that acts on purinergic receptors. In spite of the presence of purinergic receptors in forebrain areas involved with fluid-electrolyte balance, the effect ...
D.R.G. de Faria   +3 more
doaj  

Nucleotides: Structure and Properties [PDF]

open access: yes, 2005
Nucleotides consist of a nitrogen-containing base, a five-carbon sugar, and one or more phosphate groups. Cells contain many types of nucleotides, which play a central role in a wide variety of cellular processes, including metabolic regulation and the ...
Bowater, RP
core   +1 more source

Experimentally implemented dynamic optogenetic optimization of ATPase expression using knowledge-based and Gaussian-process-supported models [PDF]

open access: yes
Optogenetic modulation of adenosine triphosphatase (ATPase) expression represents a novel approach to maximize bioprocess efficiency by leveraging enforced adenosine triphosphate (ATP) turnover. In this study, we experimentally implement a model-based open-loop optimization scheme for optogenetic modulation of the expression of ATPase.
arxiv   +1 more source

Verteporfin‐Mediated In Situ Nanovaccine Based on Local Conventional‐Dose Hypofractionated Radiotherapy Enhances Antitumor and Immunomodulatory Effect

open access: yesAdvanced Science, EarlyView.
Here gelatinase‐responsive methoxypolyethyleneglycol–PVGLIG–polycaprolactone (mPEG–PVGLIG–PCL) nanoparticles’ loading verteporfin (N@VP) is developed, enhancing radiotherapy via X‐ray‐triggered singlet oxygen generation. Combined with 2 Gy (gray, a radiation dose unit) irradiation, N@VP achieves antitumor efficacy comparable to 8 Gy, and also promotes ...
Zhifan Zhang   +16 more
wiley   +1 more source

Purinergic signalling: past, present and future [PDF]

open access: yes, 2009
The discovery of non-adrenergic, non-cholinergic neurotransmission in the gut and bladder in the early 1960's is described as well as the identification of adenosine 5'-triphosphate (ATP) as a transmitter in these nerves in the early 1970's.
Burnstock, G
core   +1 more source

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