Publications by authors named "Simin Deng"

Objective: To detect white matter microstructural alterations in patients with primary aldosteronism (PA) with normal cognitive function using diffusion tensor imaging (DTI).

Methods: This study included PA patients and normotensive healthy controls (HCs). MRI (T1-weighted) and DTI data were collected for all participants.

View Article and Find Full Text PDF

Background: The intracellular bacterium Listeria monocytogenes is an attractive vector for cancer immunotherapy as it can effectively deliver tumor antigens to antigen-presenting cells, leading to a robust antitumor response.

Results: In this study, we developed a novel vaccine platform called Listeria-based Live Attenuated Double Substitution (LADS), which involves introducing two amino acid substitutions (N478AV479A) into the virulence factor listeriolysin O (LLO). LADS is a safe vaccine platform, with an attenuation of nearly 7000-fold, while retaining complete immunogenicity due to the absence of deletion of any virulence factors.

View Article and Find Full Text PDF
Article Synopsis
  • This study explores how Listeria monocytogenes manipulates host mitochondrial dynamics, specifically fission and fusion, to boost its pathogenicity.
  • *The virulence factor listeriolysin O (LLO) interacts with Mic60, a key component of mitochondrial structure, causing mitochondrial fragmentation that aids in bacterial infection.
  • *The research reveals Mic60's role in altering mitochondrial morphology and function during L. monocytogenes infection, suggesting new avenues for treating bacterial infections.
View Article and Find Full Text PDF

Aim: To explore the association between the non-high-density lipoprotein cholesterol (HDL-C)/HDL-C ratio (NHHR) and the risk of major adverse cardiovascular events (MACEs) and overall mortality in patients with type 2 diabetes mellitus (T2DM).

Materials And Methods: NHHR, calculated as (total cholesterol - HDL-C)/HDL-C, was evaluated in 10,188 participants. Cox proportional hazard regression models were employed to assess the association of NHHR with future risk of MACEs and overall mortality.

View Article and Find Full Text PDF

TRIM72 (MG53), a membrane repair protein with E3-ligase activity, plays a crucial role in colorectal cancer (CRC). This study examined TRIM72 expression in primary CRC tumors and paired liver metastases using RT-PCR. Findings revealed significantly lower TRIM72 levels in liver metastases compared to primary tumors (p < 0.

View Article and Find Full Text PDF

() is an important swine bacterial pathogen and causes human infections, leading to a wide range of diseases. However, the role of 5'-nucleotidases in its virulence remains to be fully elucidated. Herein, we identified four cell wall-anchored 5'-nucleotidases (Snts) within , named SntA, SntB, SntC, and SntD, each displaying similar domains yet exhibiting low sequence homology.

View Article and Find Full Text PDF

Ethnopharmacological Relevance: Cognitive dysfunction associated with diabetes, known as diabetic encephalopathy (DE), is a grave neurodegenerative condition triggered by diabetes, and persistent inflammation plays a vital role in its development. The renowned traditional Chinese medicine Huang-Lian-Jie-Du Decoction (HLJDD) is clinically proven to manage diabetes mellitus and Alzheimer's disease and is famous for its heat-clearing and detoxifying effects. However, the underlying mechanisms through which HLJDD affects DE remain to be elucidated.

View Article and Find Full Text PDF

The complement system is the first defense line of the immune system. However, pathogens have evolved numerous strategies to evade complement attacks. Streptococcus suis is an important zoonotic bacterium, harmful to both the pig industry and human health.

View Article and Find Full Text PDF

Objective: The objective of this study is to explore potential differences in brain functional networks at baseline between individuals with progressive subjective cognitive decline (P-SCD) and stable subjective cognitive decline (S-SCD), as well as to identify potential indicators that can effectively distinguish between P-SCD and S-SCD.

Methods: Alzheimer's Disease Neuroimaging Initiative (ADNI) database was utilized to enroll SCD individuals with a follow-up period of over 3 years. This study included 39 individuals with S-SCD, 15 individuals with P-SCD, and 45 cognitively normal (CN) individuals.

View Article and Find Full Text PDF

Purpose: To determine whether individuals with subjective cognitive decline (SCD) have changes in whole-brain network characteristics and intracerebral node characteristics in the structural network, and whether there is a difference between SCD with and without Apolipoprotein E4 ().

Methods: This cross-sectional study included 36 individuals without SCD without (healthy control, HC group), 21 individuals with SCD with (APOEε4+ group), and 33 individuals with SCD without (APOEε4- group). The white matter structural network was constructed using the fractional anisotropy (FA) based deterministic fiber tracking method.

View Article and Find Full Text PDF
Article Synopsis
  • The study examines how the medial prefrontal cortex (mPFC), amygdala (Amyg), and nucleus accumbens (NAc) contribute to social preferences in children with Autism Spectrum Disorder (ASD) through neural connectivity analysis.
  • Researchers used resting-state fMRI data from 37 ASD patients and 50 typically developing controls to assess changes in brain activity and connectivity among these regions.
  • Results indicated lower activity in the brain regions for ASD children, along with altered connectivity patterns, which were correlated with social responsiveness scores, suggesting important insights into the neural basis of social impairments in ASD.
View Article and Find Full Text PDF
Article Synopsis
  • RAN is a key issue in developmental dyslexia (DD) that involves multiple brain regions working together, but the specific brain connectivity factors affecting RAN in Chinese children with DD are not well understood.
  • A study involving 36 children with DD and 64 typically developing (TD) children used resting-state fMRI scans and Granger causality analysis to investigate the effective connectivity (EC) between brain areas associated with RAN.
  • The findings indicate that children with DD showed decreased EC in several brain area connections essential for RAN performance, suggesting a core deficit while also displaying some compensatory mechanisms, which highlights the need for targeted brain-based interventions.
View Article and Find Full Text PDF

Digital PCR is a powerful method for absolute nucleic acid quantification and is widely used in the absolute quantification of viral copy numbers, tumor marker detection, and prenatal diagnosis. However, for most of the existing droplet-based dPCR systems, the droplet generation, PCR reaction, and droplet detection are performed separately using different instruments. Making digital PCR both easy to use and practical by integrating the qPCR workflow into a superior all-in-one walkaway solution is one of the core ideas.

View Article and Find Full Text PDF

Diabetic cardiomyopathy (DCM) contributes significantly to the heightened mortality rate observed among diabetic patients, with myocardial fibrosis (MF) being a pivotal element in the disease's progression. Hydrogen sulfide (HS) has been shown to mitigate MF, but the specific underlying mechanisms have yet to be thoroughly understood. A connection has been established between the evolution of DCM and the incidence of cardiomyocyte pyroptosis.

View Article and Find Full Text PDF

Aims: To investigate the association of single-point insulin sensitivity estimator (SPISE) index with future cardiovascular outcomes in patients with type 2 diabetes.

Materials And Methods: SPISE index (= 600 × high-density lipoprotein cholesterol [mg/dL]/triglycerides [mg/dL] × body mass index [kg/m]) was calculated in 10 190 participants. Cox proportional hazard regression models were applied to evaluate the association between SPISE index and future cardiovascular outcomes.

View Article and Find Full Text PDF
Article Synopsis
  • The article reviews potential complications related to intraocular pressure (IOP) after Implantable Collamer Lens (ICL) surgery for myopia correction.
  • It highlights common issues like residual viscoelastic, steroid response, and excessive vault of the ICL that can lead to elevated IOP, and discusses their causes, impact, and management strategies.
  • Rare complications such as Toxic Anterior Segment Syndrome and Urrets-Zavalia Syndrome are also examined to provide a comprehensive understanding and guidance for eye care professionals to ensure optimal patient care.
View Article and Find Full Text PDF
Article Synopsis
  • The study investigates the white matter network topology in people with essential hypertension (EHT) using graph theory.
  • It analyzes brain imaging data from 43 EHT patients and 33 healthy controls, focusing on network characteristics and specific brain regions.
  • Results reveal that EHT patients have altered small-worldness and nodal characteristics in specific brain areas, suggesting structural connectivity issues that could serve as a neuroimaging marker for EHT.
View Article and Find Full Text PDF

Pathogenic bacteria have evolved many strategies to evade surveillance and attack by complements. is an important zoonotic pathogen that infects humans and pigs. Hyaluronidase (HylA) has been reported to be a potential virulence factor of .

View Article and Find Full Text PDF

(), a significant zoonotic bacterial pathogen impacting swine and human, is associated with severe systemic diseases such as streptococcal toxic shock-like syndrome, meningitis, septicaemia, and abrupt fatality. The multifaceted roles of complement components C5a and C3a extend to orchestrating inflammatory cells recruitment, oxidative burst induction, and cytokines release. Despite the pivotal role of subtilisin-like serine proteases in pathogenicity, their involvement in immune evasion remains underexplored.

View Article and Find Full Text PDF

Context: The urinary albumin to creatinine ratio (UACR) is a widely used indicator of albuminuria and has predictive value for adverse cardiovascular events.

Objective: To evaluate the correlation between the UACR and the risk of developing major adverse cardiovascular events (MACEs) and total mortality in patients with type 2 diabetes mellitus (T2DM).

Methods: This post hoc analysis included 10 171 participants from the Action to Control Cardiovascular Risk in Diabetes (ACCORD) study and the ACCORD follow-up study (ACCORDION) with baseline UACR data.

View Article and Find Full Text PDF

The adaption and tolerance to various environmental stresses are the fundamental factors for the widespread existence of . Anti-oxidative stress is the critical mechanism for the survival and pathogenesis of . The thioredoxin (Trx) and glutaredoxin (Grx) systems are known to contribute to the anti-oxidative stress of , but whether the Dsb system has similar roles remains unknown.

View Article and Find Full Text PDF

Glutathione (GSH) is an essential component of the glutaredoxin (Grx) system, and it is synthesized by the enzyme glutathione synthase GshF in . GSH plays a crucial role in regulating virulence by modifying the virulence factors LLO and PrfA. In this study, we investigated the involvement of GshF in oxidative tolerance and intracellular infection.

View Article and Find Full Text PDF

Precipitation whiplash, including abrupt shifts between wet and dry extremes, can cause large adverse impacts on human and natural systems. Here we quantify observed and projected changes in characteristics of sub-seasonal precipitation whiplash and investigate the role of individual anthropogenic influences on these changes. Results show that the occurrence frequency of global precipitation whiplash is projected to be 2.

View Article and Find Full Text PDF

Diabetic cognitive impairment (DCI) is a serious neurodegenerative disorder caused by diabetes, with chronic inflammation being a crucial factor in its pathogenesis. Pterostilbene is a well-known natural stilbene derivative that has excellent anti-inflammatory activity, suggesting its potential medicinal advantages for treating DCI. Therefore, this study is to explore the beneficial effects of pterostilbene for improving cognitive dysfunction in DCI mice.

View Article and Find Full Text PDF

Attenuated Salmonella Typhimurium is a promising antigen delivery system for live vaccines such as polysaccharides. The length of polysaccharides is a well-known key factor in modulating the immune response induced by glycoconjugates. However, the relationship between the length of Lipopolysaccharide (LPS) O-antigen (OAg) and the immunogenicity of S.

View Article and Find Full Text PDF

A PHP Error was encountered

Severity: Warning

Message: fopen(/var/lib/php/sessions/ci_sessionirqdjqi93nis6ltv2v1eaer67g7m9hh2): Failed to open stream: No space left on device

Filename: drivers/Session_files_driver.php

Line Number: 177

Backtrace:

File: /var/www/html/index.php
Line: 316
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: session_start(): Failed to read session data: user (path: /var/lib/php/sessions)

Filename: Session/Session.php

Line Number: 137

Backtrace:

File: /var/www/html/index.php
Line: 316
Function: require_once