Background: BMAL1, a key regulator of circadian rhythms, plays a multifaceted role in brain function. However, the complex interplay between BMAL1, memory, neuroinflammation, and neurotransmitter regulation remains poorly understood. To investigate these interactions, we conducted a study using BMAL1-haplodeficient mice (BMAL1).
View Article and Find Full Text PDFInt Immunopharmacol
November 2024
Cholinergic circuit defects have been linked to various neurological abnormalities, yet the precise mechanisms underlying the impact of cholinergic signaling on cognitive functions, particularly in the context of neuroinflammation-associated, remain poorly understood. Similarly, while the dopamine receptor (D2R) has been implicated in the pausing of cholinergic interneurons (CIN), its relationship with behavior remains inadequately elucidated. In this study, we aimed to investigate whether D2R plays a role in the regulation of fear and memory in the Hsp60 knockout condition, given the non-canonical involvement of Hsp60 in inflammation.
View Article and Find Full Text PDFBiochem Biophys Res Commun
August 2024
Genetic knockout and pharmaceutical inhibition of the NLRP3 inflammasome enhances the extinction of contextual fear memory, which is attributed to its role in neuronal and synaptic dysregulation, concurrent with neurotransmitter function disturbances. This study aimed to determine whether NLRP3 plays a role in generalizing fear via the inflammatory axis. We established the NLRP3 KO mice model, followed by behavioral and biochemical analyses.
View Article and Find Full Text PDFApolipoprotein E4 (ApoE4) is involved in the stress-response processes and is hypothesized to be a risk factor for depression by means of mitochondrial dysfunction. However, their exact roles and underlying mechanisms are largely unknown. ApoE4 transgenic mice (B6.
View Article and Find Full Text PDFDopamine receptors can form heteromeric interactions with other receptors, including glutamate receptors, and present a novel pharmacological target because it contribute to dopamine-dysregulated brain disorders such as addiction and other motor-related diseases. In addition, dopamine receptors D2 (D2Rs) and glutamate NMDA receptors subtype-NR2B have been implicated in morphine use disorders; however, the molecular mechanism underlying the heteromeric complex of these two receptors in morphine use disorders is unclear. Herein, we focus on interactions between D2R and NR2B in morphine-induced conditioned place preference (CPP) and hyperlocomotion mice models.
View Article and Find Full Text PDFNeurotherapeutics
October 2023
Dopamine and serotonin signalling are associated with major depressive disorder, which is a prevalent life-threatening illness worldwide. Numerous FDA-approved dopamine/serotonin signalling-modifying drugs are available but are associated with concurrent side effects and limited efficacy. Thus, identifying and targeting their signalling pathway is crucial for improving depression treatment.
View Article and Find Full Text PDFBackground: To analyze the relationship between V-Ki-ras2 Kirsten rat sarcoma viral oncogene homolog () status and radioresistance in non-small cell lung cancer (NSCLC), we identified potential genotypic differences and pathways involved.
Methods: We retrospectively analyzed epidermal growth factor receptor () and status in patients undergoing definitive radiotherapy for NSCLC between 2004 and 2018. Cox proportional hazard models were used to evaluate local progression-free survival (LPFS).
Laser intensity noise is one of the main limiting factors in pulsed vapor cell clocks. To reduce the contribution of the laser intensity noise to detection signal in the pulsed optically pumped atomic clock, a scheme based on the differential Faraday rotation angle is proposed. Theoretically, the Ramsey fringes, the sensitivity of clock frequency to laser intensity fluctuation and the signal to noise ratio for absorption, differential, and Faraday rotation angle methods are calculated and compared.
View Article and Find Full Text PDFAdiponectin (APN) deficiency has also been associated with Alzheimer-like pathologies. Recent studies have illuminated the importance of APN signaling in reducing Aβ accumulation, and the Aβ elimination mechanism remains rudimentary. Therefore, we aimed to elucidate the APN role in reducing Aβ accumulation and its associated abnormalities by targeting autophagy and lysosomal protein changes.
View Article and Find Full Text PDFMajor depression disorder is a severe mental illness often linked with metabolic disorders. Adiponectin is an adipocyte-secreted circulatory hormone with antidiabetic and glucose/lipid modulation capacities. Studies have demonstrated the pathophysiological roles of adiponectin involved in various neurological disorders, including depression.
View Article and Find Full Text PDFBackground: Selective serotonin reuptaker inhibitors, including fluoxetine, are widely studied and prescribed antidepressants, while their exact molecular and cellular mechanism are yet to be defined. We investigated the involvement of HDAC1 and eEF2 in the antidepressant mechanisms of fluoxetine using a lipopolysaccharide (LPS)-induced depression-like behavior model.
Methods: For in vivo analysis, mice were treated with LPS (2 mg/kg BW), fluoxetine (20 mg/kg BW), HDAC1 activator (Exifone: 54 mg/kg BW) and NH125 (1 mg/kg BW).
biofilms are difficult to treat and the effect of telithromycin treatment is still unclear. This study aimed to explore the effect of telithromycin against biofilms compared with azithromycin, clindamycin, vancomycin and daptomycin. Eight methicillin-susceptible and eight methicillin-resistant isolates (MSSA and MRSA, respectively) were used for this study.
View Article and Find Full Text PDFPurpose: This study aims to evaluate the antimicrobial activities of linezolid and radezolid against Streptococcus agalactiae in vitro and compared for genetic resistance factors.
Method: Nonduplicate S. agalactiae clinical isolates (n = 136) were collected and the minimal inhibitory concentrations of antimicrobials were determined by agar dilution methodology.
Purpose: This study aimed to explore daptomycin combined with fosfomycin or rifampin against the planktonic and adherent linezolid-resistant isolates of Enterococcus faecalis.
Methodology: Four linezolid-resistant and four linezolid-sensitive isolates of E. faecalis which formed biofilms were collected for this study.
Background: Mortality rates for patients with Staphylococcus aureus (S. aureus) infections have improved only modestly in recent decades and S. aureus infections remain a major clinical challenge This study investigated the in vitro antimicrobial activity of erevacycline (erava) against clinical S.
View Article and Find Full Text PDFPurpose: In this study, we aimed to investigate biofilm formation characteristics in clinical Staphylococcus aureus (S. aureus) isolates with erythromycin (ERY) resistance from China and further analyze their correlations with antimicrobial susceptibility and molecular characteristics.
Methodology: A total of 276 clinical isolates of ERY-resistant S.
This study investigated the characteristics and mechanisms of eravacycline resistance and heteroresistance in clinical Klebsiella pneumoniae isolates. A total of 393 clinical K. pneumoniae isolates were collected and subjected to eravacycline and tigecycline MIC determinations using the agar dilution method.
View Article and Find Full Text PDFFront Cell Infect Microbiol
January 2019
bacteremia biofilm traits and distribution characteristics have not been clarified. This study aimed to determine the prevalence and characteristics of bacteremia biofilm formation (BF) and to explore the virulence factors associated with BF. A total of 250 bacteremia isolates were collected from patients in Shenzhen and Shanghai, China.
View Article and Find Full Text PDFbiofilm traits and distribution characteristics in China have not been clarified. This study aimed to determine the prevalence and characteristics of biofilm formation in a sample of clinical isolates and to explore the virulence factors associated with biofilm formation in those isolates. A total of 265 isolates were collected from patients in Shenzhen, China.
View Article and Find Full Text PDFJ Huazhong Univ Sci Technolog Med Sci
April 2017
In order to discover the risk factors for 30-day mortality in bloodstream infections (BSI) caused by Enterococcus spp. strains, we explored the clinical and therapeutic profile of patients with Enterococcus spp. BSI and the characteristics of this condition.
View Article and Find Full Text PDFIt is recognized that T helper 2 (Th2) polarization plays a critical role in a large number of immune disorders. Yet, the remedies for reconciling the established Th2 polarization are still limited currently. Published data indicate that micro RNA-17-92 cluster is associated with the skewed immune response; 25 vitamin D3 (VD3) can regulate multiple bioactivities in the body.
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