Astragaloside IV alleviates inflammation and improves myocardial metabolism in heart failure mice with preserved ejection fraction.

Background: Heart failure with preserved ejection fraction (HFpEF) has grown to become the dominant form of heart failure worldwide. However, no unequivocally effective treatment for HFpEF has been identified in clinical trials. In this study, we report that Astragaloside IV (AS-IV) can be used to treat HFpEF.

Insights into uncovered public health risks. The case of asthma attacks among archival workers: a cross-sectional study.

Objective: To ascertain the prevalence of asthma attacks among archivists and identify the associated occupational factors in this understudied professional population.

Methods: We conducted a cross-sectional, questionnaire-based study among 1,002 archival workers. A multiple logistic regression was conducted to identify the association between asthma attacks and occupational exposures.

Recent Advances in Oral Vaccines for Animals.

Compared to traditional injected vaccines, oral vaccines offer significant advantages for the immunization of livestock and wildlife due to their ease of use, high compliance, improved safety, and potential to stimulate mucosal immune responses and induce systemic immunity against pathogens. This review provides an overview of the delivery methods for oral vaccines, and the factors that influence their immunogenicity. We also highlight the global progress and achievements in the development and use of oral vaccines for animals, shedding light on potential future applications in this field.

Design, Synthesis, and Evaluation of 8-(-Tolyl)quinazoline Derivatives as Small-Molecule PD-1/PD-L1 Antagonists.

Small-molecule inhibitors targeting programmed cell death-1/programmed cell death-ligand 1 (PD-1/PD-L1) interactions can compensate for the shortcomings of antibody-based inhibitors and have attracted considerable attention, some of which have already entered clinical trials. Herein, based on our previous study on small-molecule PD-L1 inhibitors, we reported a series of 8-(-tolyl)quinazoline derivatives by the skeleton merging strategy. Homogenous time-resolved fluorescence (HTRF) assay against PD-1/PD-L1 interaction identified compound , which showed the most potent inhibition with an IC value of 23.

Local delivery of biocompatible lentinan/chitosan composite for prolonged inhibition of postoperative breast cancer recurrence.

Postsurgical localized chemotherapy for breast cancer recurrence (BCR) still faces many problems which dampen researchers' enthusiasm and discounted prognosis. Simple strategies with controllable toxicities are expected to address these hurdles. Lentinan (LNT) has excellent biocompatibility and notable antitumor activity but rather low bioavailability after intravenous or oral administration.

Corrigendum: Exploring the Relationship Between Users' Psychological Contracts and Their Knowledge Contribution in Online Health Communities.

[This corrects the article DOI: 10.3389/fpsyg.2021.

Exploring the Relationship Between Users' Psychological Contracts and Their Knowledge Contribution in Online Health Communities.

The knowledge contribution of members is essential and beneficial to both the business and users of online health communities (OHCs). This study explores and tests the effects of OHC users' psychological contracts on their community identification and knowledge-sharing behavior. A total of 367 valid responses from several well-known OHCs in China are used in the data analysis.

Biomimetic Matrix Stiffness Modulates Hepatocellular Carcinoma Malignant Phenotypes and Macrophage Polarization through Multiple Modes of Mechanical Feedbacks.

The extracellular matrix (ECM) stiffening is an important sign of local microenvironment change, which is considered as a hallmark of many diseases including hepatocellular carcinoma (HCC). The fates of both cancer cells and immune cells can be regulated by mechanical feedbacks acquired from ECM, but there is a lack of a precise study of mechanical feedback modes in different cell phenotypes following with the progressively increasing ECM stiffness. Herein, we used a biopolymeric film without further modification of adhesive molecules, as a natural local niche to mimic a gradually stiffening manner from HCC onset in liver cirrhosis to its metastasis in the spinal cord.

Immobilized Transforming Growth Factor-Beta 1 in a Stiffness-Tunable Artificial Extracellular Matrix Enhances Mechanotransduction in the Epithelial Mesenchymal Transition of Hepatocellular Carcinoma.

Cancer progression is regulated by multiple factors of extracellular matrix (ECM). Understanding how cancer cells integrate multiple signaling pathways to achieve specific behaviors remains a challenge because of the lack of appropriate models to copresent and modulate ECM properties. Here we proposed a strategy to build a thin biomaterial matrix by poly(l-lysine) and hyaluronan as an artificial stiffness-tunable ECM.