Project description:Trigeminal neuralgia (TN) is a type of neuropathic pain caused by injury to sensory nerves, manifesting as severe paroxysmal pain of the head and face. Trigeminal neuralgia brings a huge burden to patients, without long-term effective treatment. Changes in the expression of pain-related genes in the whole blood samples of patients play an important role in the pathogenesis, diagnosis, and evaluation of treatment effects of trigeminal neuralgia. To better understand the mechanism of trigeminal neuralgia, we collect the whole blood samples from the trigeminal neuralgia patients and the pain-free healthy comparisons. RNA-seq was conducted between the two groups to find the transcriptome changes in patients with trigeminal neuralgia.
Project description:Investigation on the transcriptome and intercellular communication of different cells of trigeminal nerve in trigeminal neuralgia rat by spatial transcriptome sequencing
Project description:The epigenetic roles in trigeminal neuralgia (TN) still remain unclear. H3K9ac alteration in neuralgia is obscure and controversy. In this study, we established TN rat model via chronic compression, and further treated with 100 mg/kg/d carbamazepine (CBZ). RNA-seq were conducted to investigate the transcriptional profilings in control, TN and TN+CBZ.
Project description:The epigenetic roles in trigeminal neuralgia (TN) still remain unclear. H3K9ac alteration in neuralgia is obscure and controversy. In this study, we established TN rat model via chronic compression, and further treated with 100 mg/kg/d carbamazepine (CBZ). ChIP-seq were conducted to investigate the genome-wide distribution of H3K9ac and HDAC3 in control, TN and TN+CBZ.
Project description:The cerebral cortex plays a key role in the multi-dimensional human pain experience. However, the neural mechanisms mediating pain-related cortical activity remain largely unknown, particularly in primary somatosensory cortex (S1). We therefore developed a new animal model of trigeminal neuralgia, a prototypical neuropathic pain, which allowed us to evaluate pain-related cortical dynamics with unprecedented translational relevance. Our novel model (FLIT: Foramen Lacerum Impingement of Trigeminal-nerve) displayed robust clinically relevant trigeminal neuralgia-like behaviors, including asymmetric facial grimacing, dental pain-like behaviors, anxiety-like behavior, and sexual dysfunction, capturing many features of the human pain experience. Awake FLIT mice exhibited highly synchronized spontaneous population activity in S1, due to GABAergic interneuron hypoactivity. Remarkably, clinically effective treatments including carbamazepine and trigeminal nerve root decompression abrogated S1 synchronization and alleviated trigeminal neuralgia-like behaviors. These results reveal synchronized S1 activity as a new and important cortical substrate of neuropathic pain, which can be clinically targeted to provide effective therapy.
Project description:Purpose: In this study, we aimed to analyze lncRNA expression in the whole transcriptome of trigeminal ganglia (TG) and spinal trigeminal nucleus caudalis (Sp5C) in a chronic inflammatory TMJ pain mouse model. Chronic inflammatory TMJ pain was induced by intra-TMJ injection of complete Freund's adjuvant (CFA). The lncRNA expression patterns in the whole transcriptome of TG and Sp5C were profiled with RNA sequencing.