Results 71 to 80 of about 220,059 (299)

Decreased nitric oxide levels in the hippocampus may play a role in learning and memory deficits in ovariectomized rats treated by a high dose of estradiol

open access: yesArquivos de Neuro-Psiquiatria, 2012
The effects of a high estradiol dose on memory and on nitric oxide metabolites in hippocampal tissues were investigated. Sham-Est and OVX-Est Groups were treated with 4 mg/kg of estradiol valerate for 12 weeks.
Reihaneh Sadeghian   +4 more
doaj   +1 more source

Structures of estradiol and 15α-hydroxy-estradiol.

open access: yes, 2013
Estradiol is the biologically active estrogen in most vertebrates. 15α-hydroxy-estradiol is found in lamprey blood [11], [12] and may be the biologically active estrogen.
Charlie Chandsawangbhuwana (31494)   +2 more
core   +1 more source

From Sensing Mechanisms to System Co‐Design: Graphene‐Based Sensors and Readout Circuits

open access: yesAdvanced Science, EarlyView.
This review establishes a unified PS–EQ–RF framework linking graphene sensing mechanisms, native electrical outputs, and output‐specific readout circuits. Voltage‐, current‐, resistance‐, and capacitance‐type sensing systems are systematically classified to guide architecture selection, low‐noise design, system co‐design, and practical integration ...
Jinduo Zhang   +5 more
wiley   +1 more source

TP53 Loss Elevates NF‐κB‐IFN‐β‐MHC‐Ia Signaling to Promote NK Cell Resistance in Osteosarcoma

open access: yesAdvanced Science, EarlyView.
TP53 loss in a transforming or osteosarcoma cell promotes cytosolic DNA accumulation, activating NF‐κB‐dependent IFN‐β production. Autocrine IFN‐β signaling increases cell‐surface HLA‐Ia expression, strengthens inhibitory KIR signaling in natural killer cells, and thereby enables the affected cell to evade NK cell‐mediated cytotoxicity.
Guihui Qin   +9 more
wiley   +1 more source

Radical, Not Ionic: The Mechanochemical Zincke Nitration of Phenols

open access: yesAngewandte Chemie, EarlyView.
Mechanochemistry recasts the classical Zincke nitration as an open‐shell process. Liquid‐assisted vibrational milling of phenols with in situ HNO2 delivers direct and ipso nitration across 50 substrates, while atmosphere, NOx‐transfer, EPR and DFT evidence expose a phenoxyl‐radical/NO2 manifold underlying this historically ionic transformation ...
Roberto Scipione   +7 more
wiley   +2 more sources

Serum interleukin-17 expression in postmenopausal women and its relation to osteoporosis and risk of fractures

open access: yesJournal of the Arab Society for Medical Research
Background/Aim Osteoporosis is a musculoskeletal disorder that is characterized by low bone mineral density (BMD) as well as an elevated risk of fractures.
Samar G. Soliman   +3 more
doaj   +1 more source

SAV1 in Cooperation With FKBP52 Participates in Implantation

open access: yesAdvanced Science, EarlyView.
The MST‐SAV1 complex modulates FKBP52 phosphorylation to fine‐tune PR activity, ensuring timely uterine transition to receptivity under estrogen signaling for implantation. Stromal SAV1 scaffolds MST1/2‐mediated FKBP52 phosphorylation via noncanonical Hippo to promote PR activity.
Yuhan Shao   +10 more
wiley   +1 more source

Tamoxifen: an FDA approved drug with neuroprotective effects for spinal cord injury recovery

open access: yesNeural Regeneration Research, 2016
Spinal cord injury (SCI) is a condition without a cure, affecting sensory and/or motor functions. The physical trauma to the spinal cord initiates a cascade of molecular and cellular events that generates a non-permissive environment for cell survival ...
Jennifer M Colón, Jorge D Miranda
doaj   +1 more source

Progesterone after Estradiol Modulates Shuttle-Cage Escape by Facilitating Volition

open access: yes, 2015
In animal models of depression, depression is defined as performance on a learning task. That task is typically escaping a mild electric shock in a shuttle cage by moving from one side of the cage to the other.
Sean M. Cilano   +3 more
core   +1 more source

Smart Bioinks for 4D Bioprinting: Requirements, Design, and Applications

open access: yesAdvanced Science, EarlyView.
Smart bioinks empower 4D‐bioprinted constructs to dynamically adapt and remodel in response to stimuli, effectively biomimicking native tissues. Artificial Intelligence (AI) and Machine Learning (ML) play a guiding role in their rational design by optimizing relevant properties.
Shangsi Chen   +11 more
wiley   +1 more source

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