Background: Emerging research suggests that Janus kinase-signal transducer and activator of transcription (JAK-STAT) inhibitors may be associated with a higher risk of serious infection for patients with rheumatoid arthritis. However, there is no consensus on whether JAK inhibitors increase the risk of serious infection in patients with Immune-mediated inflammatory skin diseases (IMISDs).
Objectives: To ascertain the correlation between JAK inhibitor use and the risk of serious infection in patients with IMISDs.
Conventional laser micromachining technologies rely on trial-and-error optimization to obtain precise surface geometry. In this study, we present a laser micromachining setup that enables the preparation of the desired surface geometry without the need for parameter exploration. The setup consists of a laser scanning system, a coaxial imaging system, a paraxial laser line projector, and a three-axis stage.
View Article and Find Full Text PDFThe DELAY OF GERMINATION1-LIKE (DOGL) genes play an essential role in diverse biological processes in plants. However, their exact involvement in the response to cadmium (Cd) stress via the ABA pathway remains unclear. Here, we focused on NtDOGL4, a tobacco DOGL gene whose expression is highly induced upon exposure to Cd.
View Article and Find Full Text PDFBackground: Warts result from an infection with the human papilloma virus (HPV). Plantar warts, also known as Verruca plantaris, can be notably painful for the patient and possess contagious qualities, thus necessitating assertive treatment. Despite several available approaches for addressing plantar warts, efficacy remains elusive.
View Article and Find Full Text PDFAims: In this study, the effect of intracerebral ventricle injection with a miR-124-3p agomir or antagomir on prognosis and on subventricular zone (SVZ) neural stem cells (NSCs) in adult rats with moderate traumatic brain injury (TBI) was investigated.
Methods: Model rats with moderate controlled cortical impact (CCI) were established and verified as described previously. The dynamic changes in miR-124-3p and the status of NSCs in the SVZ were analyzed.
Tobacco (Nicotiana tabacum L.) is an important cash crop in China, with an estimated production of 2.2 million tons every year (Berbeć and Matyka, 2020).
View Article and Find Full Text PDFDrought and heat stresses are two major environmental stress factors that severely threaten crop growth and productivity. Plant () family genes play important roles in various developmental processes and stress responses. In our previous study, a tobacco gene () was found to regulate seedling growth and drought response.
View Article and Find Full Text PDFXi Bao Yu Fen Zi Mian Yi Xue Za Zhi
January 2020
Objective To explore the change of the expression of microRNA-124-3p (miR-124-3p) in injured hippocampus of rats and investigate the role of miR-124-3p in neuranagenesis after traumatic brain injury (TBI). Methods The healthy male rats were randomly divided into a sham-operated group, TBI group, miR-124-3p agomir group and miR-124-3p antagomir group. TBI models were constructed by controlled cortical injury (CCI) device for all the groups except for the sham-operated group.
View Article and Find Full Text PDFTo investigate the role and mechanism of microRNA-124-3p (miR-124-3p) and serine palmitoyltransferase long chain base subunit 2 (SPTLC2) in neuronal apoptosis induced by mechanical injury. Transient transfection was used to modify the expression of miR-124-3p and SPTLC2. After transfection, neuronal apoptosis was evaluated in an in vitro injury model of primary neurons using TUNEL staining and western blot.
View Article and Find Full Text PDFObjective: Traumatic brain injury (TBI) induces immunosuppression in the acute phase, and the activation of the sympathetic nervous system (SNS) might play a role in this process, but the mechanism involved is unknown. Herein, we explored the impact of acute (a)TBI on the peripheral immune system and its correlation with the SNS and the T cell exhaustion marker, PD-1 (programmed cell death-1).
Methods: Flow cytometry (FCM) was performed to analyze the expression of T cell markers and intracellular cytokines, interferon-γ and tumor necrosis factor-α, and the T cell exhaustion marker, PD-1, in the peripheral blood mononuclear cells (PBMCs) of TBI rats.
MicroRNA-124 (miR-124) is a brain specific miRNA that is highly expressed in microglia. The upregulation of miR-124 contributes to M2 polarization of microglia, which is beneficial to neurogenesis. Exosomes are lipid membrane vesicles that can deliver miR-124 into the brain.
View Article and Find Full Text PDFThe protective role of electroacupuncture (EA) treatment in diverse neurological diseases such as ischemic stroke is well acknowledged. However, whether and how EA act on hippocampal neurogenesis following traumatic brain injury (TBI) remains poorly understood. This study aims to investigate the effect of EA on hippocampal neurogenesis and neurological functions, as well as its underlying association with toll-like receptor 4 (TLR4) signaling in TBI mice.
View Article and Find Full Text PDFDrought is a major environmental factor that limits crop growth and productivity. Flue-cured tobacco () is one of the most important commercial crops worldwide and its productivity is vulnerable to drought. However, comparative analyses of physiological, biochemical and gene expression changes in flue-cured tobacco varieties differing in drought tolerance under long-term drought stress are scarce.
View Article and Find Full Text PDFFront Cell Neurosci
February 2017
Exosomes are endosomal origin membrane-enclosed small vesicles (30-100 nm) that contain various molecular constituents including proteins, lipids, mRNAs and microRNAs. Accumulating studies demonstrated that exosomes initiated and regulated neuroinflammation, modified neurogenic niches and neurogenesis, and were even of potential significance in treating some neurological diseases. These tiny extracellular vesicles (EVs) can derive from some kinds of multipotent cells such as mesenchymal stem cells (MSCs) that have been confirmed to be a potentially promising therapy for traumatic brain injury (TBI) in experimental models and in preclinical studies.
View Article and Find Full Text PDFAmong sphingosine 1-phosphate receptors (S1PRs) family, S1PR1 has been shown to be the most highly expressed subtype in neural stem cells (NSCs) and plays a crucial role in the migratory property of NSCs. Recent studies suggested that S1PR1 was expressed abundantly in the hippocampus, a specific neurogenic region in rodent brain for endogenous neurogenesis throughout life. However, the potential association between S1PR1 and neurogenesis in hippocampus following traumatic brain injury (TBI) remains unknown.
View Article and Find Full Text PDFAlthough synaptic plasticity in neural circuits is orchestrated by an ocean of genes, molecules, and proteins, the underlying mechanisms remain poorly understood. Recently, it is well acknowledged that miRNA exerts widespread regulation over the translation and degradation of target gene in nervous system. Increasing evidence suggests that quite a few specific miRNAs play important roles in various respects of synaptic plasticity including synaptogenesis, synaptic morphology alteration, and synaptic function modification.
View Article and Find Full Text PDFPlant Physiol Biochem
October 2014
DnaJ proteins constitute a DnaJ/Hsp40 family and are important regulators involved in diverse cellular functions. To date, the molecular mechanisms of DnaJ proteins involved in response to drought stress in plants are largely unknown. In this study, a putative DnaJ ortholog from Nicotiana tabacum (NtDnaJ1), which encodes a putative type-I J-protein, was isolated.
View Article and Find Full Text PDFDrought is one of the most important limiting factors for plant growth and development. To identify genes required for drought stress response in tobacco, one highly induced mRNA encoding a RING-H2 Finger gene (RHF1) was isolated by mRNA differential display. The full-length NtRHF1 encodes a protein of 273 amino acids and contains a single C3H2C3-type RING motif in its C-terminal region.
View Article and Find Full Text PDFSulfite oxidase (SO) catalyzes the oxidation of sulfite to sulfate and thus has important roles in diverse metabolic processes. However, systematic molecular and functional investigations on the putative SO from tobacco (Nicotiana benthamiana) have hitherto not been reported. In this work, a full-length cDNA encoding putative sulfite oxidase from N.
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