Results 101 to 110 of about 213,878 (305)

Thinking Dynamically About Biological Mechanisms: Networks of Coupled Oscillators [PDF]

open access: yes, 2012
Explaining the complex dynamics exhibited in many biological mechanisms requires extending the recent philosophical treatment of mechanisms that emphasizes sequences of operations.
Bechtel, William, Abrahamsen, Adele
core  

A Mouse Model of Depression‐Tumor Multimorbidity Reveals the Mechanism of Tumor Growth Accelerated by Depression

open access: yesAnimal Research and One Health, EarlyView.
Depression accelerates tumor growth by dysregulation of tumor immune microenvironment. (A) Modeling methods: Subcutaneous tumor models were established under chronic unpredictable mild stress conditions, including cold swimming, physical restraint, and food/water deprivation, leading to increased tumor growth.
Yakun Ren   +6 more
wiley   +1 more source

Glial Cells in the Genesis and Regulation of Circadian Rhythms

open access: yesFrontiers in Physiology, 2018
Circadian rhythms are biological oscillations with a period of ~24 h. These rhythms are orchestrated by a circadian timekeeper in the suprachiasmatic nucleus of the hypothalamus, the circadian “master clock,” which exactly adjusts clock outputs to solar ...
Donají Chi-Castañeda   +2 more
doaj   +1 more source

Clock Genes Regulate Ca2+ Signaling and Mitochondrial Bioenergetics to Inhibit Sjögren Disease

open access: yesArthritis &Rheumatology, EarlyView.
Objective Although Ca2+ signaling and metabolism have been identified as key determinants for the development of Sjögren disease (SjD), the intricate connection between them and salivary gland physiology remains poorly understood. Methods Fluorescence‐based Ca2+ imaging, RNA sequencing, and mitochondrial activity were used to investigate the effects of
Viktor R. Drel   +12 more
wiley   +1 more source

Dual Effects of β‐TrCP2 Deletion in Bone Homeostasis: Suppression of Osteoclastogenesis and Enhancement of Osteoblast Activity

open access: yesArthritis &Rheumatology, EarlyView.
Objective The aim of this study was to elucidate the role of beta‐transducin repeat‐containing protein 2 (β‐TrCP2) in bone homeostasis for its potential as a therapeutic target for osteoporosis. Methods The role of β‐TrCP2 in bone phenotypes was investigated using systemic β‐TrCP1 knockout (KO) and β‐TrCP2KO mice, along with myeloid‐specific ...
Woo Jung Kim   +14 more
wiley   +1 more source

Chronotherapy and intervertebral disc degeneration: understanding the role of circadian rhythm in degenerative processes

open access: yesFrontiers in Cell and Developmental Biology
Intervertebral disc degeneration (IDD) and low back pain are prevalent issues globally, affecting a significant portion of the adult population. Recent research has highlighted the crucial role of circadian rhythms in the degenerative processes of ...
Cong Zhang   +21 more
doaj   +1 more source

A survey on the teaching of introductory nervous system content in undergraduate courses

open access: yesAnatomical Sciences Education, EarlyView.
Abstract Teaching introductory or foundation level concepts about anatomy and physiology of the nervous system to undergraduate students presents a conundrum for educators—how to provide students with sufficient knowledge for a successful learning experience and outcome without overwhelming students and impacting student progression and retention.
Gabrielle Todd   +2 more
wiley   +1 more source

Rhythmic potassium transport regulates the circadian clock in human red blood cells

open access: yesNature Communications, 2017
Circadian rhythms usually rely on cyclic variations in gene expression. Red blood cells, however, display circadian rhythms while being devoid of nuclear DNA.
Erin A. Henslee   +15 more
doaj   +1 more source

Non-visual effects of light on human circadian physiology and neurobehavioral performance [PDF]

open access: yes, 2015
Light is of crucial importance for human circadian rhythms. In fact, light exposure allows for resetting individual biological rhythms to the 24-h day.
Gabel, Virginie
core   +1 more source

Harnessing ferroptosis from multilayer defense networks to nanoplatforms for specific cancer therapy

open access: yesBMEMat, EarlyView.
Nanomaterials target metabolically‐regulated ferroptosis for cancer therapy. Iron‐based or alternative nanoplatforms integrate ferroptosis with chemotherapy, immunotherapy, or radiotherapy. They enable stimulus‐responsive therapies (photothermal, photodynamic, sonodynamic) activated by near‐infrared, light, or ultrasound, achieving potent synergistic ...
Xinyue Xu   +5 more
wiley   +1 more source

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