The influencing factors of cognitive impairment in elderly individuals in Chengdu city: a cross-sectional study based on AD8.

Background: With the aging of society, cognitive impairment in elderly people is becoming increasingly common and has caused major public health problems. The screening of cognitive impairment in elderly people and its related influencing factors can aid in the development of relevant intervention and improvement strategies.

Methods: In this study, stratified random cluster sampling was used to conduct a cross-sectional survey of elderly individuals aged 65 years in Chengdu, Sichuan Province, through an electronic questionnaire from November 2022 to November 2023.

Functional Aptamers In Vitro Evolution for Intranuclear Blockage of RNA-Protein Interaction.

Over the last 30 years, despite considerable research and endeavors aimed at harnessing aptamers as pharmaceutical molecules, the progress in developing aptamer-based drugs has been falling short of expectations. Sequential steps of affinity molecule acquisition and functional screening are typically required for discovering affinity-based macromolecule therapeutics, which can be time-consuming and limiting in candidate selection. Additionally, aptamers often necessitate tedious postselection modifications to overcome pharmacokinetic limitations, which usually impede the binding affinity.

Cytotoxic Pentaketide-Sesquiterpenes from the Marine-Derived Fungus M22734.

, a filamentous fungus widely distributed across terrestrial and marine environments, can produce a diverse array of natural products, including alkaloids, polyketones, and polyketide-terpenoids. Among these, chrodrimanins represented a typical class of natural products. In this study, we isolated three previously undescribed pentaketide-sesquiterpenes, 8,9--chrodrimanins (-), along with eight known compounds (-).

Cytotoxic and Antibacterial Meroterpenoids Isolated from the Marine-Derived Fungus sp. M27416.

Three novel meroterpenoids, taladrimanins B-D (-), were isolated from the marine-derived fungus sp. M27416, alongside three biogenetically related compounds (-). We delineated taladrimanin B's () structure using HRESIMS and NMR, confirmed its configuration via quantum chemical NMR analysis and DP4+ methodology, and verified it through X-ray crystallography.

Studying Intermolecular Interactions in an Antibody-Drug Conjugate Through Chemical Screening and Computational Modeling.

Antibody-drug conjugates (ADCs) combine the selectivity of antibodies with the cytotoxicity of drug payloads to yield highly targeted and potent therapeutics. Owing to the need to chemically modify residues for attachment of the payload and their more complex structure compared to either component alone, ADCs can present additional challenges related to stability of the final drug product. Here, we report for the first time the use of high-throughput experimental screens and computational techniques to tune the conformational and colloidal behavior of a monomethyl auristatin F-based ADC.

Diarylheptanoid 35d overcomes EGFR TKI resistance by inducing hsp70-mediated lysosomal degradation of EGFR in EGFR-mutant lung adenocarcinoma.

Epidermal growth factor receptor (EGFR)-mutant lung adenocarcinoma (LUAD) patients often respond to EGFR tyrosine kinase inhibitors (TKIs) initially but eventually develop resistance to TKIs. The switch of EGFR downstream signaling from TKI-sensitive to TKI-insensitive is a critical mechanism-driving resistance to TKIs. Identification of potential therapies to target EGFR effectively is a potential strategy to treat TKI-resistant LUADs.

Relationship between serum CHIP levels with cardiovascular disease in maintenance haemodialysis patients.

Many preclinical studies reported that the carboxyl terminus of Hsp70-interacting protein (CHIP) has cardiovascular protective effects. This study was designed to explore whether CHIP is related with cardiovascular disease (CVD) in maintanence haemodialysis (MHD) patients. 217 MHD patients and 150 healthy controls were recruited, serum CHIP concentration and clinical characteristics were measured.

Peripheral Tumor Location Predicts a Favorable Prognosis in Patients with Resected Small Cell Lung Cancer.

Background: Small cell lung cancer (SCLC) is an aggressive malignancy. Surgical resection is currently only recommended for clinical stage I patients who have been carefully staged. The clinical outcomes of patients with resected SCLCs vary because the disease is highly heterogeneous, suggesting that selected patients could be considered for surgical resection depending on their clinical and/or molecular characteristics.

Inhibition of HIST1H2AB suppresses the proliferation of lung adenocarcinoma.

Background: Lung adenocarcinoma is one of the common causes of cancer-related deaths worldwide. Histone cluster 1 H2A family member b (HIST1H2AB) is a member of the histone H2A family. Bioinformatic analyses have revealed that HIST1H2AB is highly expressed in some cancers and might be an oncogene.

Characterization of a bifunctional and endolytic alginate lyase from Microbulbifer sp. ALW1 and its application in alginate oligosaccharides production from Laminaria japonica.

The diverse biological activities of alginate oligosaccharides attracted extensive exploration of alginate lyases with various substrate specificity and enzymatic properties. In this study, an alginate lyase from Microbulbifer sp. ALW1, namely AlgL7, was phylogenetically classified into the polysaccharide lyase family 7 (PL7).

Benzoquinone and furopyridinone derivatives from the marine-derived fungus sp. MCCC 3A01752.

Two new compounds, compounds and , were obtained from the culture of a marine-derived fungus sp. MCCC 3A01752, together with 13 known compounds (-). Their structures were elucidated based on detailed analysis of NMR, HRESIMS, ECD spectra and OR value.

Interactional, functional, and biological properties of lactone sophorolipid (LSL) and collagen oligopeptides (COP) in aqueous solution.

For the mixed aqueous solution of LSL and COP, the interaction mode and mechanism have been comprehensively studied using multispectral methods including fluorescence spectrum, ultraviolet-visible (UV-vis )adsorption spectra, and circular dichroism (CD) spectra. The surface activity, particle size, foaming, emulsifying, viscosity, and antibacterial properties were evaluated in detail using a surface tension measurement (ST), dynamic light scattering (DLS), oscillometric method, spectrophotometer, Ubbelohde viscometer, and zone of inhibition separately. Compared with the single LSL or COP aqueous solution, the mixed system shows different performance optimizations in different aspects.

Characterization of a bioactive meroterpenoid isolated from the marine-derived fungus Talaromyces sp.

A new meroterpenoid, taladrimanin A (1), was isolated from a marine-derived fungus Talaromyces sp. HM6-1-1, together with eleven biogenetically related compounds (2-12). A plausible biosynthetic pathway for the meroterpenoids (1-4) was proposed.

Novel Bent Conformation of CD4 Induced by HIV-1 Inhibitor Indirectly Prevents Productive Viral Attachment.

GSK3732394 is a multi-specific biologic inhibitor of HIV entry currently under clinical evaluation. A key component of this molecule is an adnectin (6940_B01) that binds to CD4 and inhibits downstream actions of gp160. Studies were performed to determine the binding site of the adnectin on CD4 and to understand the mechanism of inhibition.

Better effect of intrapleural perfusion with hyperthermic chemotherapy by video-assisted thoracoscopic surgery for malignant pleural effusion treatment compared to normothermic chemoperfusion of the pleural cavity.

Objective: The aim of this study was to assess the efficacy and safety of intrapleural perfusion with hyperthermic chemotherapy (IPHC) in treating malignant pleural effusion (MPE) compared to normothermic chemoperfusion of the pleural cavity (NCPC), and to investigate the better treatment to control MPE.

Methods: Malignant pleural effusion patients were enrolled in the study and treated with NCPC or IPHC under video-assisted thoracoscopic surgery (VATS). The chest drainage duration, clinical characteristics, and recurrence time of pleural effusion of patients were collected for statistical analysis.

Clinical outcomes of patients taking first-generation EGFR-TKIs may predict the benefits afforded by osimertinib in EGFR T790M-mutant NSCLC patients.

Background: Epidermal growth factor receptor-tyrosine kinase inhibitors (EGFR-TKIs) are widely used to treat patients with EGFR-mutated non-small cell lung cancers (NSCLCs). The association between the clinical outcomes of patients on first-line EGFR-TKIs and the efficacy of osimertinib as second-line treatment has not been previously assessed. This is our topic here.

Molecular cloning and characterization of a thermostable and halotolerant endo-β-1,4-glucanase from sp. ALW1.

The bacterium sp. ALW1 was previously characterized with the capability to break down the cell wall of brown algae into fine pieces. The biological functions of strain ALW1 were yet to be elucidated.

Isochorismatase domain-containing protein 1 (ISOC1) participates in DNA damage repair and inflammation-related pathways to promote lung cancer development.

Background: The advent of novel molecular targets has dramatically changed the treatment landscape of lung cancer in recent years. Isochorismatase domain-containing protein 1 () has been reported as a potential biomarker in gastrointestinal cancer, while its function in lung cancer has not been determined.

Methods: The expression levels and prognostic significance of were assessed using bioinformatic analysis.

Effects of different combined regimens of cisplatin, metformin, and quercetin on nasopharyngeal carcinoma cells and subcutaneous xenografts.

Cisplatin, metformin, and quercetin are all reliable anticancer drugs. However, it is unclear how effective their different combination regimens are on the growth of nasopharyngeal carcinoma cell line Sune-1 and subcutaneous xenograft in nude mice. This study evaluated the effects of single-drug, two-drug, and three-drug simultaneous or sequential combined application of these drugs on the growth of Sune-1 cells and subcutaneous xenograft tumors in nude mice.

A Prognostic 14-Gene Expression Signature for Lung Adenocarcinoma: A Study Based on TCGA Data Mining.

Background: Lung adenocarcinoma (LUAD), a major and fatal subtype of lung cancer, caused lots of mortalities and showed different outcomes in prognosis. This study was to assess key genes and to develop a prognostic signature for the patient therapy with LUAD.

Method: RNA expression profile and clinical data from 522 LUAD patients were accessed and downloaded from the Cancer Genome Atlas (TCGA) database.

Structure elucidation of a novel cyclic tripeptide from the marine-derived fungus DSW-2.

A novel cyclic tripeptide, sclerotiotide M (), was isolated from the culture of a marine derived fungus DSW-2, together with four known compounds (-). The planar structure of was established by 1 D and 2 D NMR data, supported by mass spectrometry, and the relative configuration was established by calculated NMR chemical shifts coupled with a statistical method (DP4+). All the compounds (-) displayed weak cytotoxic activities against cancer cell lines HPAC and BXPC3, with IC values over 20 μM.

Clinical Characteristics Correlate With Outcomes of Immunotherapy in Advanced Non-Small Cell Lung Cancer.

Considering the existing indicators are not sufficient to predict the patient's response to immune checkpoint inhibitors (ICIs), we conducted this study to evaluate the efficacy and safety of ICIs in advanced non-small cell lung cancer (NSCLC) patients, and to determine prognostic factors of ICIs. In this study, 61 patients diagnosed with advanced NSCLC who underwent ICIs were recruited. The univariate analysis revealed the number of metastatic sites, immune-related adverse events (irAEs) (≥ G2) and best response were significantly associated with both progression-free survival (PFS) and overall survival (OS).

MiR-210 in exosomes derived from CAFs promotes non-small cell lung cancer migration and invasion through PTEN/PI3K/AKT pathway.

Objective: Cancer-associated fibroblasts (CAFs) function as a crucial factor in tumor progression by carrying exosomes to neighboring cells. This study was assigned to expound the underlying mechanism of CAFs-derived exosomal miR-210 in non-small cell lung cancer (NSCLC) progression.

Method: CAFs and normal fibroblasts (NFs) were isolated and identified.

Highland games: A benchmarking exercise in predicting biophysical and drug properties of monoclonal antibodies from amino acid sequences.

Biopharmaceutical product and process development do not yet take advantage of predictive computational modeling to nearly the degree seen in industries based on smaller molecules. To assess and advance progress in this area, spirited coopetition (mutually beneficial collaboration between competitors) was successfully used to motivate industrial scientists to develop, share, and compare data and methods which would normally have remained confidential. The first "Highland Games" competition was held in conjunction with the October 2018 Recovery of Biological Products Conference in Ashville, NC, with the goal of benchmarking and assessment of the ability to predict development-related properties of six antibodies from their amino acid sequences alone.

Prevalence and Characterization of in Three Typical Commercial Pig Abattoirs in Wuhan, China.

This study was designed to investigate the prevalence and characteristics of in three Chinese pig abattoirs (A, B, and C) in Wuhan city in 2016. Four types of pig samples were collected and cultured for . was detected from 329 samples among the 1440 tested (22.