288 results match your criteria: "Yanan Hospital Affiliated to Kunming Medical University[Affiliation]"

CRISPR/Cas12a-Enhanced Loop-Mediated Isothermal Amplification for the Visual Detection of .

Front Bioeng Biotechnol

February 2022

Provincial Key Laboratory for Transfusion-Transmitted Infectious Diseases, Institute of Blood Transfusion, Chinese Academy of Medical Sciences and Peking Union Medical College, Chengdu, China.

is a serious threat to global public health, and a rapid detection method is urgently needed. The CRISPR/Cas (clustered regularly interspaced short palindromic repeats/CRISPR-associated) system is widely used in gene editing, gene therapy, and diagnosis. Here, we combined loop-mediated isothermal amplification (LAMP) and CRISPR/Cas12a to develop a novel diagnostic test (CRISPR/Cas12a-E-LAMP) for the diagnosis of .

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Article Synopsis
  • An analysis of 9649 Chinese patients with non-small cell lung cancer (NSCLC) identified various EGFR mutation subtypes and their relationship with tumor mutational burden (TMB) and PD-L1 expression.
  • Several uncommon EGFR mutations were found to show higher levels of TMB and PD-L1 positivity compared to typical mutations, with differences in immune microenvironment characteristics, notably CD8 T cell infiltration.
  • Follow-up data indicated that components of the immune microenvironment can serve as prognostic indicators for NSCLC patients and highlight the need for tailored treatments based on specific EGFR mutations, suggesting immunotherapy options for certain rare subtypes.
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Background: VB12 is involved in the production of bone marrow red blood cells, preventing pernicious anemia and brain nerve damage.

Objective: A large edible fungus Lactarius hatsudake (Lh) was used as a carbon source to produce fluorescent carbon dots (CDs) with high quantum yield and high photostability by a one-step hydrothermal method.

Method: The structure and optical properties of Lh-CDs were characterized by XRD, XPS, FTIR, and UV-Vis, and the stability of Lh-CDs was studied.

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A phage PEf771 that specifically infects and lyses pathogenic Enterococcus faecalis YN771 in patients with refractory periapical periodontitis was used to investigate resistance against E. faecalis infection in vitro and in vivo. PEf771 completely lysed YN771 within 3 h, with a multiplicity of infection of 1.

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Levosimendan Postconditioning Attenuates Cardiomyocyte Apoptosis after Myocardial Infarction.

J Healthc Eng

April 2022

Department of Cardiovascular Surgery, Yan'an Hospital Affiliated to Kunming Medical University, No. 245,Renmin East Road, Kunming, Yunnan Province 650051, China.

Background: Levosimendan preconditioning has been shown to attenuate myocardial apoptosis in animal models. However, protective effects of levosimendan postconditioning against myocardial apoptosis following myocardial infarction (MI) have not been evaluated. Therefore, we investigated the effects of levosimendan postconditioning on myocardial apoptosis in MI rat models.

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Objective: Repair of cartilage defects, a common condition resulting from many factors, is still a great challenge. Based on their chondrogenic differentiation ability, mesenchymal stem cell- (MSC-) based cartilage regeneration is a promising approach for cartilage defect repair. However, MSC differentiation into chondroblasts or related cell lineages is elaborately controlled by stem cell differentiation stage factors and affected by an array of bioactive elements, which may impede the efficient production of target cells.

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Background And Aim: Previous smaller meta-analyses comparing the incidence of hepatocellular carcinoma (HCC) in chronic hepatitis B (CHB) patients treated with tenofovir disoproxil fumarate (TDF) versus entecavir (ETV) provided controversial results. This updated meta-analysis aimed to reliably identify any difference in the HCC incidence between TDF-treated or ETV-treated CHB patients in general or in specific subgroups.

Methods: PubMed, EMBASE, Web of Science, and Cochrane Library were systematically searched for relevant studies with hazard ratios (HRs) for HCC between TDF-treated and ETV-treated CHB patients.

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Objectives: Even though postoperative chemotherapy can eliminate residual tumor cells in patients with colorectal cancer (CRC), severe adversity, weakened immunity and drug resistance are still problems. Adjuvant cytokine-induced killer (CIK) cell therapy is an alternative to CRC patients after surgery. The present study investigated the efficacy of adjuvant CIK cell therapy combined with chemotherapy in postoperative CRC patients.

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Plasma cell granuloma is extremely rare in the oral cavity. This paper reports a case of plasma cell granuloma in the oral cavity and reviews the literature. In this case, the plasma cell granuloma occurred in the gingiva, which was bright red and granular.

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Purpose: Chronic obstructive pulmonary disease (COPD) is a major cause of death and morbidity worldwide. A better understanding of new biomarkers for COPD patients and their complex mechanisms in the progression of COPD are needed.

Methods: An algorithm was conducted to reveal the proportions of 22 subsets of immune cells in COPD samples.

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OLFM4 depletion sensitizes gallbladder cancer cells to cisplatin through the ARL6IP1/caspase-3 axis.

Transl Oncol

February 2022

Yan'an Hospital Affiliated to Kunming Medical University/Yan'an Hospital of Kunming City, Kunming, Yunnan 650051, China; Key Laboratory of Tumor Immunological Prevention and Treatment of Yunnan Province, Kunming, Yunnan 650051, China; Yunnan Cell Biology and Clinical Translational Research Center, Kunming, Yunnan 650051, China; Kunming Key Laboratory of Biotherapy, Kunming, Yunnan 650051, China. Electronic address:

Background: Gallbladder cancer (GBC) is a highly lethal malignancy that carries an extremely poor prognosis due to its chemoresistant nature. Cisplatin (CDDP) is a first-line chemotherapeutic for GBC; however, patients experienced no benefit when treated with CDDP alone. The underlying mechanisms of CDDP resistance in GBC remain largely unknown.

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Vaccine hesitancy is considered one of the greatest threats to the ongoing coronavirus disease 2019 (COVID-19) vaccination programs. Lack of trust in vaccine benefits, along with concerns about side effects of the newly developed COVID-19 vaccine, might significantly contribute to COVID-19 vaccine hesitancy. The objective of this study was to determine the level of vaccine hesitancy among communities in particular their belief in vaccination benefits and perceived risks of new vaccines.

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Introduction: Salidroside (Sal) a bioactive component extracted from Rhodiola rosea is remarkable for its anti-asthmatic effects. The study aimed to explore the molecular mechanism of Sal in airway inflammation and remodeling in asthmatic mice and provide a novel theoretical basis for asthma treatment.

Methods: An asthmatic mouse model was established via ovalbumin (OVA) treatment, followed by injection of Sal and transfection of miR-323-3p-mimic and sh- suppressor of cytokine signaling 5 (SOCS5).

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Vaccine hesitancy, defined as the reluctance or rejection in receiving a vaccine despite its availability, represents a major challenge to global health efforts aiming to control the ongoing COVID-19 pandemic. Understanding the possible factors correlated with COVID-19 vaccine hesitancy using a refined well-informed approach can be helpful to address the phenomenon. The current study aimed to evaluate COVID-19 vaccine acceptance rates using four hypothetical scenarios of varying levels of vaccine efficacy and safety profiles in ten Asian, African and South American countries.

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Ginsenoside compound K (CK) is the major intestinal bacterial metabolite of ginsenosides that exhibits anticancer potential in various cancer cells both in vitro and in vivo. The anticancer types, mechanisms, and effects of CK in the past decade have been summarized in this review. Briefly, CK exerts anticancer effects via multiple molecular mechanisms, including the inhibition of proliferation, invasion, and migration, the induction of apoptosis and autophagy, and anti-angiogenesis.

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Background: Increasing evidences have proved that long noncoding RNAs (lncRNAs) regulate the occurrence of bladder cancer (BC) and participate in various pathophysiology processes. However, little is unknown about the role of lncRNAs in drug resistance of BC cells. In this study, we explored the role of non-coding RNA activated by DNA damage (NORAD) in the gemcitabine (GEM) resistant of BC cells and explored its potential mechanism.

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It has previously been reported that lung cancer has the highest morbidity and mortality rate worldwide; however, the pathogenesis underlying lung cancer has not been fully elucidated. The aim of the present was primarily to assess the influence of microRNA (miR)-106a-5p on the biological behaviors of lung cancer cells. In the present study, bioinformatics analysis was used to analyze the expression characteristics of miR-106a-5p and its relationship with the prognosis of patients with lung adenocarcinoma (LUAD) in The Cancer Genome Atlas.

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Objective: To study the effect of intercellular adhesion (ica) operon of on the inflammation associated with mixed biofilm of and on endotracheal tube material in rabbits.

Methods: The standard strains of RP62A (ica operon positive, positive group) and ATCC12228 (ica operon negative, negative group) were taken to prepare a bacterial solution with a concentration of 1×10 CFU/mL, respectively. Then, the two bacterial solutions were mixed with the standard strain of ATCC10231 of the same concentration to prepare a mixed culture solution at a ratio of 1∶1, respectively.

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Background: Spinal artery ischemia (SCI) events can result from over coverage of the descending thoracic aorta with a coated stent during Thoracic Endovascular Aortic Repair (TEVAR). The aim of this study was to determine whether a new distal perforating stent could reduce the incidence of spinal cord ischemia while remodeling the true lumen.

Methods: TBAD patients treated with Talos stent in the vascular surgery Department of Yan 'an Hospital affiliated to Kunming Medical University between December 2017 and October 2019 were retrospectively analyzed to investigate the short-term safety and effectiveness of Talos stent.

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Cytokine-induced killer (CIK) cells have been proved to be an effective method of tumor immunotherapy in numerous preclinical and clinical studies. In our previous study, a new method was developed to prime and propagate CIK cells by the combination of IL-2 and IL-15, and this kind of CIK cells had enhanced antitumor effect on lung cancer. For renal cell carcinoma (RCC), immunotherapy plays an important role because of the poor efficacy of radiotherapy and chemotherapy.

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Background: Recently, thymectomy using minimally invasive approaches has been increasing with the development of robotic video-assisted thoracoscopic surgery (R-VATS). Although multimodal approach is effective for robot assisted thymectomy, it is necessary to determine the approach (left, right or subxiphoid) associated with the least complications.

Methods: An electronic retrieval from PubMed, Embase, Web of Science, GreyNet International and The Cochrane Library.

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WarmStart colorimetric loop-mediated isothermal amplification for the one-tube, contamination-free and visualization detection of Shigella flexneri.

Int J Infect Dis

November 2021

Provincial Key Laboratory for Transfusion-Transmitted Infectious Diseases, Institute of Blood Transfusion, Chinese Academy of Medical Sciences and Peking Union Medical College, Chengdu, Sichuan, China; Toronto General Research Institute, University of Toronto, Toronto, ON, Canada. Electronic address:

Objectives: Shigella flexneri (S. flexneri) is prevalent worldwide and the most common Shigella in many countries, causing highly contagious diarrhea, which seriously threatens public health. This study aimed to develop a colorimetric loop-mediated isothermal amplification (LAMP) for the rapid, accurate, and visualization detection of S.

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Background: Exogenous nerve growth factor (NGF) can induce osteogenic precursor cell differentiation and promote fracture healing. However, the molecular mechanism by which NGF induces osteogenesis is not well understood. BMP-2 has good osteogenic efficacy and is one of the most osteogenic-inducing growth factors known.

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Nucleus pulposus cell (NPC) transplantation can be a potential therapeutic approach for intervertebral disc degeneration (IDD). However, low cell viability has restricted the therapeutic capacity of NPCs, and sources of natural NPCs are limited. Bone marrow-derived mesenchymal stem cells (BMSCs) and adipose-derived mesenchymal stem cells (ADSCs) can be differentiated toward NPC-like cells.

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