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OBJECTIVE: We aimed to describe how the prevention and controlling strategies have been experienced by COVID-19 patients in China, especially those who had passed through the suspected, diagnosed, hospitalized, and recovery stages of the disease. DESIGN: A descriptive qualitative study followed the Standards for Reporting Qualitative Research guidelines. SAMPLES: COVID-19 patients were recruited from a COVID-19-designated facility in Shanghai, China, from April to June 2020, by the purposive sampling method. METHODS: Semi-structured, in-depth interviews by cell phone were used and transcriptions were analyzed using inductive qualitative content analysis method. RESULTS: We recruited 26 COVID-19 patients. Three theme categories emerged from the data analysis. The first was “Consciously adhere to COVID-19-related controlling strategies.” The second category was “Positive experiences of the COVID-19-related controlling strategies.” These patients experienced a quick and adequate medical response, confident in the medical system, or received help from community workers. The third category was “Negative experiences of the COVID-19-related controlling strategies.” These patients experienced psychological distress, stigma, privacy exposures, and inconveniences from the controlling strategies. CONCLUSIONS: It is urgent to develop a culturally sensitive intervention to eliminate the psychological distress and stigma of patients with COVID-19 and to protect their privacy during and after the pandemic.

The flagellin epitope flg22, a pathogen-associated molecular pattern (PAMP), binds to the receptor-like kinase FLAGELLIN SENSING2 (FLS2), and triggers Ca2+ influx across the plasma membrane (PM). The flg22-induced increases in cytosolic Ca2+ concentration ([Ca2+ ]i ) (FICA) play a crucial role in plant innate immunity. It's well established that the receptor FLS2 and reactive oxygen species (ROS) burst undergo sensitivity adaptation after flg22 stimulation, referred to as desensitization and resensitization, to prevent over responses to pathogens. However, whether FICA also mount adaptation mechanisms to ensure appropriate and efficient responses against pathogens remains poorly understood. Here, we analyzed systematically [Ca2+ ]i increases upon two successive flg22 treatments, recorded and characterized rapid desensitization but slow resensitization of FICA in Arabidopsis thaliana. Pharmacological analyses showed that the rapid desensitization might be synergistically regulated by ligand-induced FLS2 endocytosis as well as the PM depolarization. The resensitization of FICA might require de novo FLS2 protein synthesis. FICA resensitization appeared significantly slower than FLS2 protein recovery, suggesting additional regulatory mechanisms of other components, such as flg22-related Ca2+ permeable channels. Taken together, we have carefully defined the FICA sensitivity adaptation, which will facilitate further molecular and genetic dissection of the Ca2+ -mediated adaptive mechanisms in PAMP-triggered immunity. We recorded and characterized the rapid desensitization but slow resensitization of flg22-induced Ca2+ increases (FICA) in Arabidopsis thaliana. The FICA desensitization and resensitization are likely involved in FLS2 protein trafficking in the plasma membrane and de novo synthesis, respectively. This article is protected by copyright. All rights reserved.

Photoresponsive molecular systems are essential for molecular optoelectronic devices, but most molecular building blocks are non-photoresponsive. Employed here is a photoinduced proton transfer (PIPT) strategy to control charge transport through single-molecule azulene junctions with visible light under ambient conditions, which leads to a reversible and controllable photoresponsive molecular device based on non-photoresponsive molecules and a photoacid. Also demonstrated is the application of PIPT in two single-molecule AND gate and OR gate devices with electrical signal as outputs.

The effects of Tm3+ concentration on upconversion emission and temperature-sensing behavior of Tm3+/Yb3+:Y2O3 nanocrystals were investigated. Blue and red emissions were observed under 980 nm excitation. Both upconversion emissions and the blue to red intensity ratio were found to decrease with increasing Tm3+ concentration. The temperature-sensing performances of the samples were studied, the fluorescence intensity ratio of 1G4(a)→3H6 (477 nm) and 1G4(b)→3H6 (490 nm) transitions from Tm3+ ions was chosen as the thermometric index. The results showed that the sensor sensitivity was sensitive to Tm3+ ion concentration. The maximum sensitivity of ~32 × 10-4 K-1 was obtained for 0.1%Tm3+/5%Yb3+:Y2O3 nanocrystals at 344 K. Moreover, a marked optical induced heating effect was also found in the nanocrystals. The prepared Tm3+/Yb3+:Y2O3 nanocrystals could be used in temperature-sensing probes and in optical heaters.

Vascular calcification (VC) is caused by hydroxyapatite deposition in the intimal and medial layers of the vascular wall, leading to severe cardiovascular events in patients with hypertension, chronic kidney disease and diabetes mellitus. VC occurrences involve complicated mechanism networks, such as matrix vesicles or exosomes production, osteogenic differentiation, reduced cell viability, aging and so on. However, with present therapeutic methods targeting at VC ineffectively, novel targets for VC treatment are demanded. Exosomes are proven to participate in VC and function as initializers for mineral deposition. Secreted exosomes loaded with microRNAs are also demonstrated to modulate VC procession in recipient vascular smooth muscle cells. In this review, we targeted at the roles of exosomes during VC, especially at their effects on transporting biological information among cells. Moreover, we will discuss the potential mechanisms of exosomes in VC.

Three studies were conducted to examine how embarrassment influences consumer preferences for brand conspicuousness. We predict that consumers with different levels of self-esteem will have distinct coping strategies when they feel embarrassed, resulting in differences in their preference changes related to brand conspicuousness. The results show that when feeling embarrassed, consumers with low self-esteem (high self-esteem) are more likely to have increased motivation to avoid social attention to the self in general (to repair their self-image). Thus, relatively speaking, consumers with low self-esteem (high self-esteem) prefer a more conspicuous product design over a less conspicuous one to a lesser (greater) extent when they are embarrassed than when they are not embarrassed. In addition, we demonstrate that the interaction between self-esteem and embarrassment is more likely when consumers form a strong connection with the brand.

Inositol 1,4,5-trisphosohate (IP3 ) and its receptors play a pivotal role in calcium signal transduction in mammals. However, no homologs of mammalian IP3 receptors have been found in plants. In this study, we isolated the microsomal fractions from rice cells in suspension culture and further obtained putative IP3 -binding proteins by heparin-agarose affinity purification. The IP3 -binding activities of these protein fractions were determined by [(3) H] IP3 -binding assay. SDS-PAGE and MS analysis were then performed to characterize these proteins. We have identified 297 proteins from the eluates of heparin-agarose column chromatography, which will provide insight into the IP3 signaling pathways in plants. All MS data have been deposited in the ProteomeXchange with identifier PXD000763 (http://proteomecentral.proteomexchange.org/dataset/PXD000763).