Non-coding RNA (ncRNA) is a type of non-protein-coding RNA molecule transcribed from the genome which performs broad regulation of a variety of biological functions in human cells. The Wnt signaling pathway is highly conserved in multicellular organisms, playing an important role in their growth and development. Increasing evidence suggests that ncRNA can regulate cell biological function, enhance bone metabolism, and maintain normal bone homeostasis by interacting with the Wnt pathway. Studies have also demonstrated that the association of ncRNA with the Wnt pathway may be a potential biomarker for the diagnosis, evaluation of prognosis, and treatment of osteoporosis. The interaction of ncRNA with Wnt also performs an important regulatory role in the occurrence and development of osteoporosis. Targeted therapy of the ncRNA/Wnt axis may ultimately be the preferred choice for the treatment of osteoporosis in the future. The current article reviews the mechanism of the ncRNA/Wnt axis in osteoporosis and reveals the relationship between ncRNA and Wnt, thereby exploring novel molecular targets for the treatment of osteoporosis and providing theoretical scientific guidance for its clinical treatment.
Inflammation reactions and neuronal apoptosis are the major pathophysiological mechanism of cerebral ischemia/reperfusion injury (CI/RI). Zhongfeng capsules
(ZFCs), composed of panax notoginseng, hirudo, red ginseng, eupolyphaga,
pangolin scales, rhubarb, and radix salviae miltiorrhizae. It has been reported that
composition of ZFCs has a definite curative effect on CI/RI. Thus far, the specific
molecular mechanisms of ZFCs remain unclear. This article would set rats model
of middle cerebral artery occlusion(MCAO) to research the probable mechanisms
of ZFCs underlying inflammation reactions and neuronal apoptosis signaling
pathways. Our analyses revealed that in the ZFCs treatment group, there was an
obvious decrease in neurologic impairment, as well as alleviation of the area of
cerebral infarction, cerebral edema, histopathologyrats and neuronal apoptosis were
also alleviated. The IL-1β, IL-6, and TNF-α were found to be down-regulated
expression in the ZFC treatment group as well as the expression of Bcl-2, p-PI3K,
p-Akt, and I-κBα was increased and the expression level of TLR4, NF-κB, Bax,
caspase-3 was tended to decrease. The results indicated that ZFCs was effective in
protecting the brain against CI/RI. One of their neuro-protective mechanisms may be
associated with TLR4/NF-κB signalling, and they may negatively regulate the
transcriptional activity of NF-κB and the secretion of downstream inflammatory
factors. Another of their neuro-protective mechanisms may occur by regulating the
expression of Bcl-2-Bax proteins of PI3K/Akt pathway. Our findings could facilitate
that the suppressing PI3K/Akt signal pathway-mediated neuronal apoptosis,
suppressing TLR4/NF-κB signal pathway-mediated inflammatory reaction were the
potential mechanisms for the regulations, activation of PI3K/Akt pathway can inhibit
the secretion of proinflammatory cytokines, which may be another functional
mechanism of ZFCs against CI/RI.
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