Publications by authors named "Jian-Guo Li"

Background: Nicastrin, a subunit of the γ-secretase complex, is encoded by the NCSTN gene and regulates notch signaling, it is involved in the pathogenesis of hidradenitis suppurativa (HS), Alzheimer disease (AD), and liver cancer. However, the animal models for studying HS are relatively scarce.

Methods: CRISPR/Cas-mediated genetic engineering was used to generate targeted knockout offspring mice (C57BL/6J).

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Aims: Methicillin-resistant Staphylococcus aureus (MRSA) is an important zoonotic pathogen with multidrug-resistant phenotypes increasingly prevalent in both human and veterinary clinics. This study evaluated the potential of auranofin (AF) as an antibiotic adjuvant to enhance the anti-MRSA activity of florfenicol (FFC) and established a pharmacokinetic/pharmacodynamic (PK/PD) model to compare the efficacy of FFC alone or in combination with AF against MRSA.

Methods And Results: We observed an increased susceptibility and significant synergistic effects of MRSA to FFC in the presence of AF.

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Background: Early evaluation of radiation sensitivity in lung cancer patients can facilitate the transition to personalized treatment strategies. To this end, we assessed the capability of Zr-anti-γH2AX-TAT microPET imaging in determining the radiosensitivity of lung cancer xenograft models. We prepared and conducted quality control on Zr-anti-γH2AX-TAT.

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Article Synopsis
  • Extra virgin olive oil (EVOO), known for its health benefits in the Mediterranean diet, may improve cognitive function and brain health, especially in age-related cognitive decline observed in individuals with Down syndrome.
  • In this study, Ts65dn mice (a model for Down syndrome) were given EVOO in their diet for 5 months to evaluate its effects on memory, synaptic function, and brain inflammation.
  • Results indicated that the mice on EVOO showed significant improvements in learning and memory, enhanced synaptic function, and changes in inflammatory biomarker levels, suggesting potential therapeutic benefits for Down syndrome in humans.
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By establishing an model of D-Gal-induced brain neuronal cell (HT-22) senescence, it was found that TAX treatment significantly increased the activities of SOD and GSH, while decreasing MDA levels in aging HT-22 cells, indicating that TAX effectively restored the total antioxidant capacity and antioxidant enzyme activity of aging HT-22 cells induced by D-Gal, and attenuated cellular oxidative stress injury. In addition, taxifolin could also protect HT-22 cells from aging by up-regulating SIRT1 while reducing the expression of Ac-p53, indicating that TAX may be an active substance that can effectively delay cell aging.

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Background: Chronic intake of extra virgin olive oil is beneficial for brain health and protects from age-related cognitive decline and dementia, whose most common clinical manifestation is Alzheimer's disease. Besides the classical pathologic deposits of amyloid beta peptides and phosphorylated tau proteins, another frequent feature of the Alzheimer's brain is neuroinflammation.

Objective: In the current study, we assessed the effect that extra virgin olive oil has on neuroinflammation when administered to a mouse model of the disease.

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Objective: This study aimed to investigate the effect of the central venous-to-arterial carbon dioxide partial pressure difference (Pcv-aCO2) on the administration of cardiotonic drugs in patients with early-stage septic shock. Methods: A retrospective study was conducted on 120 patients suffering from septic shock. At admission, the left ventricular ejection fraction (LVEF) and Pcv-aCO2 of the patients were obtained.

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Background: Precleaning is a key step in endoscopic reprocessing.

Aim: To develop an effective and economic endoscope cleaning method by using a disposable endoscope bedside precleaning kit.

Methods: Altogether, 228 used gastrointestinal endoscopes were selected from five high-volume endoscopy units and precleaned by a traditional precleaning bucket (group T) or a disposable endoscope bedside precleaning kit (group D).

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β-Lactam antibiotics are the mainstay for the treatment of staphylococcal infections, but their utility is greatly limited by the emergence and rapid dissemination of methicillin-resistant (MRSA). Herein, we evaluated the ability of the plant-derived monoterpene carvacrol to act as an antibiotic adjuvant, revitalizing the anti-MRSA activity of β-lactam antibiotics. Increased susceptibility of MRSA to β-lactam antibiotics and significant synergistic activities were observed with carvacrol-based combinations.

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Article Synopsis
  • The study aimed to assess the effectiveness of measuring PCT, CRP, and FIB levels in distinguishing between severe bacterial and viral pneumonia.
  • A cohort of 100 patients with severe pneumonia, consisting of equal groups for viral and bacterial infections, was analyzed alongside a healthy control group, focusing on the differences in biomarker levels.
  • Results showed that combined detection of PCT, CRP, and FIB provided higher sensitivity and specificity for diagnosing bacterial versus viral pneumonia compared to single tests, indicating its potential for better clinical diagnosis.
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Purpose: The present study aims to determine the rectoanal colonization rate and risk factors for the colonization of present multidrug-resistant bacteria (MDRBs). In addition, the relationship between MDRB colonization and surgical site infection (SSI) following hemorrhoidectomy was explored.

Methods: A cross-sectional study was conducted in the Department of Colorectal Surgery of two hospitals.

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Objective: To compare the clinical efficacy between closed reduction combined with semi-circular external fixator and minimally invasive percutaneous plate osteosynthesis (MIPPO) in the treatment of middle anddistal tibia fractures.

Methods: The clinical data of sixty patients with middle and distal tibia fractures admitted between January 2019 and November 2022, were retrospectively analyzed. These patients were categorized into external fixation group (=30) and internal fixation group (=30).

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Objective: To conduct a preliminary study on joint injuries of anterior and calcaneal fibular ligaments of the lateral ankle joint, and to analyze mechanism of action of shaking and poking in treating ankle joint and biomechanical properties of ankle during the recovery of joint injuries.

Methods: CT scan was performed on a male volunteer with right ankle sprain. Mimics 10.

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Streptococcus suis is a zoonotic pathogen that causes disease in humans after exposure to infected pigs or pig-derived food products. In this study, we examined the serotype distribution, antimicrobial resistance phenotypes and genotypes, integrative and conjugative elements (ICEs), and associated genomic environments of S. suis isolates from humans and pigs in China from 2008 to 2019.

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Following the publication of this paper, it was drawn to the Editor's attention by a concerned reader that the fluorescence microscopy data shown in Fig. 6A and B were strikingly similar to data appearing in different form in Fig. 7 in a previously published paper [Lv Z‑D, Na D, Liu F‑N, Du Z‑M, Sun Z, Li Z, Ma X‑Y, Wang Z‑N and Xu H‑M: Induction of gastric cancer cell adhesion through transforming growth factor‑beta1‑mediated peritoneal fibrosis.

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Donor-derived infection (DDI) associated with Scedosporium spp is extremely rare, and results in a very poor prognosis. The present study reports a probable DDI due to Scedosporium boydii (S. boydii) from a donor with neuropsychiatric systemic lupus erythematosus.

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Article Synopsis
  • A study focused on adenosine deaminase 2 deficiency (DADA2) in a Chinese population was conducted to analyze clinical characteristics and responses to treatment, using data from 17 rheumatology centers.
  • Thirty patients were identified, with most showing symptoms like systemic inflammation and vasculitis; the median ages for disease presentation and diagnosis were 4.3 years and 7.8 years, respectively.
  • The research concluded that genetic screening and testing are crucial for early diagnosis, recommending TNF inhibitors as first-line treatment, and hematopoietic stem cell transplantation for specific cases.
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Background: The endosomal retromer complex system is a key controller for trafficking of proteins. Downregulation of its recognition core proteins, such as VPS35, is present in Alzheimer's disease (AD) brain, whereas its normalization prevents the development of AD pathology in a transgenic model with amyloid-β deposits and tau tangles.

Objective: Assess the effect of targeting VPS35 after the AD pathology and memory impairments have developed.

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To investigate the predictive value of neuron-specific enolase (NSE) on intensive care unit (ICU) mortality in patients with septic shock. Seventy-five patients with septic shock hospitalized in the emergency intensive care unit (EICU) of Hebei General Hospital from March 2020 to September 2021 were included, and the patients' baseline characteristics and laboratory findings were collected. NSE levels on the first and fourth days after admission were retrieved.

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