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Attention control is a basic behavioral process that has been studied for decades. The currently best models of attention control are deep networks trained on free-viewing behavior to predict bottom-up attention control – saliency. We introduce COCO-Search18, the first dataset of laboratory-quality goal-directed behavior large enough to train deep-network models. We collected eye-movement behavior from 10 people searching for each of 18 target-object categories in 6202 natural-scene images, yielding ∼ 300,000 search fixations. We thoroughly characterize COCO-Search18, and benchmark it using three machine-learning methods: a ResNet50 object detector, a ResNet50 trained on fixation-density maps, and an inverse-reinforcement-learning model trained on behavioral search scanpaths. Models were also trained/tested on images transformed to approximate a foveated retina, a fundamental biological constraint. These models, each having a different reliance on behavioral training, collectively comprise the new state-of-the-art in predicting goal-directed search fixations. Our expectation is that future work using COCO-Search18 will far surpass these initial efforts, finding applications in domains ranging from human-computer interactive systems that can anticipate a person’s intent and render assistance to the potentially early identification of attention-related clinical disorders (ADHD, PTSD, phobia) based on deviation from neurotypical fixation behavior.

Liquid biopsies have the utility for detecting minimal residual disease in several cancer types. Here, we investigate if liquid biopsy tracking on-treatment informs on tumour phenotypes by longitudinally quantifying circulating Epstein-barr virus (EBV) DNA copy number in 673 nasopharyngeal carcinoma patients undergoing radical induction chemotherapy (IC) and chemo-radiotherapy (CRT). We observe significant inter-patient heterogeneity in viral copy number clearance that is classifiable into eight distinct patterns based on clearance kinetics and bounce occurrence, including a substantial proportion of complete responders (≈30%) to only one IC cycle. Using a supervised statistical clustering of disease relapse risks, we further bin these eight subgroups into four prognostic phenotypes (early responders, intermediate responders, late responders, and treatment resistant) that are correlated with efficacy of chemotherapy intensity. Taken together, we show that real-time monitoring of liquid biopsy response adds prognostic information, and has the potential utility for risk-adapted treatment de-intensification/intensification in nasopharyngeal carcinoma. Liquid biopsies are emerging as a useful method for diagnosis and prognosis in cancer. Here, the authors show the prognostic value of monitoring the level of circulating Epstein-barr virus DNA throughout induction chemotherapy and chemo-radiotherapy and its potential utility for risk-adapted individualised therapy in nasopharyngeal carcinomapatients.

This study examines the mechanism of consent production within the emerging occupation of gaming companionship, using Bixin, China’s largest gaming companion platform, as a case. Drawing from in-depth interviews with 18 gaming companions, we explore how consent is manufactured amid conditions of income instability. Despite the precarious nature of their work, gaming companions generally express high job satisfaction and a sense of fairness, believing in the value of hard work and attributing their income variations to personal effort and choices. We argue that the dashenfen (god-tier score) control system provides workers with a sense of autonomy, as they feel empowered to make their own strategic choices in managing relationships with clients. However, this is a “structured autonomy” as this architecture of choice is designed to align their self-interest with platform goals. Moreover, besides the unique workforce consisting of youngsters which allows for the acceptance of fluctuating job opportunities and income, the control mechanism cultivates an ideology of “gaming meritocracy”; it blends meritocratic ideals with elements of gaming culture. This individualizes and normalizes the inherent instability of platform work, thereby encouraging active participation in a highly uncertain environment.

The fruit of Rosa laevigata Michx. (FR), a traditional Chinese herb utilized for the treatment of a variety diseases, has notably diverse pharmacological activities including hepatoprotective, anti-oxidant, and anti-inflammatory effects. Despite ongoing research on illustrating the underlying anti-inflammatory mechanism of FR, the principal mechanism remained inadequately understood. In this study, we investigated in depth the molecular mechanism of the anti-inflammatory actions of the ethanol extract of FR (EFR) and its potential targets using lipopolysaccharide (LPS)-stimulated RAW 264.7 macrophages in vitro. We showed that EFR effectively ameliorated the overproduction of inflammatory mediators and cytokines, as well as the expression of related genes. It was further demonstrated that LPS-induced activation of nuclear factor kappa B (NF-κB) and mitogen-activated protein kinases (MAPKs) were significantly inhibited by pretreatment with EFR, accompanied by a concomitant decrease in the nuclear translocation of the p65 subunit of NF-κB and activator protein 1 (AP-1). In addition, EFR pretreatment potently prevented LPS-induced decreased phosphorylation of adenosine monophosphate-activated protein kinase (AMPK). Our data also revealed that the activation of AMPK and subsequent inhibition of the mammalian target of the rapamycin (mTOR) signaling pathway was probably responsible for the inhibitory effect of EFR on LPS-induced inflammatory responses, evidenced by reverse changes observed under the condition of AMPK inactivation following co-treatment with the AMPK-specific inhibitor Compound C. Finally, the main components with an anti-inflammatory effect in EFR were identified as madecassic acid, ellagic acid, quinic acid, and procyanidin C1 by LC–MS and testified based on the inhibition of NO production and inflammatory mediator expression. Taken together, our results indicated that EFR was able to ameliorate inflammatory responses via the suppression of MAPKs/NF-κB signaling pathways following AMPK activation, suggesting the therapeutic potential of EFR for inflammatory diseases.

Background Homocysteine (Hcy) has been confirmed to be associated with depression, but its relationship with poststroke depression (PSD) remains controversial. So far, there is no meta‐analysis of the correlation between Hcy level in acute stroke and PSD. Methods A systematic search of a sub‐database of studies reporting the level of Hcy in the acute phase of ischemic stroke and PSD as of November 2021 was performed. Data extraction was performed strictly according to the inclusion and exclusion criteria. All data were analyzed using STATA 11.0. The standardized root mean square difference (SMD) and 95% confidence interval (CI) were used to compare continuous variables. Results A total of 11 studies were included in this study, including 2789 participants. The results of this meta‐analysis showed that admission the levels of Hcy were significantly higher in PSD survivors, compared to non‐PSD survivors (SMD = 0.37, 95%CI = 0.07–0.66, P ＜ .001). Subgroup analysis showed that survivors with PSD diagnosed more than 3 months after stroke had significantly different the levels of from non‐PSD survivors (6 months: SMD = 0.61, 95%CI = 0.40–0.82, 9 months: SMD = 1.00, 95%CI = 0.59–1.41). Conclusion The level of Hcy in the acute phase of ischemic stroke is a risk factor for PSD. Forest plot of Hcy level in PSD patients and the non‐PSD.

Most laparoscopic surgeries under general anesthesia are performed in noisy environments, although the effect of intraoperative noise reduction on postoperative pain remains uncertain. This study aimed to explore whether postoperative pain could be reduced through the intraoperative use of noise-cancelling headphones. This study was conducted as a prospective parallel-group randomized clinical trial. Operating room and surgery room. Ninety patients who underwent laparoscopic surgery under general anesthesia. In the intervention group, noise-cancelling headphones were used to reduce noise intensity during laparoscopic surgery under general anesthesia. The primary outcome was the maximum movement-evoked pain intensity within 24 h post-surgery, measured using a 10-point numeric rating scale. Secondary outcomes included the maximum resting pain score and total opioid consumption during the 24-h period post-surgery. Mean intraoperative noise and the proportion of intraoperative time with noise intensity ≥70 dB were recorded. The maximum movement-evoked pain score was significantly lower in the intervention group than in the control group (mean score [SD], 2.7 [1.0] and 4.0[1.0], respectively; P < 0.001). The intervention group required significantly fewer opioids than the control group (mean [SD], 44.2 [12.8] and 51.3[17.5] mg, respectively; P = 0.032). In the control group, but not the intervention group, all postoperative pain scores were significantly associated with the proportion of intraoperative time with noise intensity ≥70 dB, which was an independent risk factor for postoperative pain. During laparoscopic surgery under general anesthesia, intraoperative noise isolation using noise-cancelling headphones is a safe and effective strategy for relieving postoperative pain and decreasing total opioid analgesic consumption. [Display omitted] •Noise-cancelling headphones during surgery reduced postoperative pain scores.•Noise-cancelling headphones during surgery reduced postoperative opioid consumption.•Reduction of hyperpathia contributes to the beneficial effect of noise-cancelling.

BACKGROUND AND AIMS: Plant growth and photosynthetic ability have been frequently demonstrated to increase with nitrogen (N) supply. N can also promote changes in root water absorption and shoot water status via mechanisms that remain poorly understood. This study aims at investigating the effects of N supply on water absorption. METHODS: A hydroponic experiment with two independent rice varieties (cv. ‘Shangyou63’ hybrid indica and cv. ‘Yangdao6’ conventional indica, China) supplied by three distinct N levels was performed in a greenhouse. Physiological characteristics were analyzed after a few weeks. RESULTS: Compared to low N supply (20 mg·L⁻¹), exposure to high N supply (100 mg·L⁻¹) increased the light-saturated photosynthetic rate (A) and water use efficiency (WUE) by 17 % and 22 %, respectively, in Shanyou63 and by 43 % and 26 %, respectively, in Yangdao6. The leaf water potential was significantly decreased in Shanyou63 but not in Yangdao6. There were increases in the rate of water uptake and the root hydraulic conductance (L ᵣ) under high N supply in both rice cultivars; these changes were accompanied by increased transcription levels of aquaporins (AQPs), decreased aerenchyma formation and root porosity, and decreased root lignin content. Under high N supply, Yangdao6 also exhibited much higher AQP activity, lower aerenchyma and root porosity compared with those of Shanyou63, indicating that Yangdao6 had an increased ability to absorb water compared with that of Shanyou63. CONCLUSIONS: The enhanced expression of AQPs and decreased root aerenchyma and lignin contributed to increased water absorption ability under high N supply. In addition, the responses of each of the two rice cultivars (hybrid and conventional) to N supply is related to their water uptake ability, resulting from root porosity and an increase in AQP activity.

Folium Microcos (FM), the leaves of Microcos paniculata L., shows various biological functions including antioxidant activity and α-glucosidase inhibitory effect. However, its therapeutic potential in acute liver injury is still unknown. This study investigated the hepatoprotective effect and underlying mechanisms of the polyphenol-enriched fraction (FMF) from Folium Microcos. FMF exhibited strong free radical scavenging activities and prevented HepG2/Hepa1–6 cells from hydrogen peroxide- (H2O2-) induced ROS production and apoptosis in vitro. Antioxidant activity and cytoprotective effects were further verified by alleviating APAP-induced hepatotoxicity in mice. Western blot analysis revealed that FMF pretreatment significantly abrogated APAP-mediated phosphorylation of MAPKs, activation of proapoptotic protein caspase-3/9 and Bax, and restored expression of antiapoptotic protein Bcl2. APAP-intoxicated mice pretreated with FMF showed increased nuclear accumulation of nuclear factor erythroid 2-related factor (Nrf2) and elevated hepatic expression of its target genes, NAD(P)H:quinine oxidoreductase 1 (NQO1) and hemeoxygenase-1(HO-1). HPLC analysis revealed the four predominantly phenolic compounds present in FMF: narcissin, isorhamnetin-3-O-β-D-glucoside, isovitexin, and vitexin. Consequently, these findings indicate that FMF possesses a hepatoprotective effect against APAP-induced hepatotoxicity mainly through dual modification of ROS/MAPKs/apoptosis axis and Nrf2-mediated antioxidant response, which may be attributed to the strong antioxidant activity of phenolic components.

Metastasis and recurrence account for 95% of deaths from nasopharyngeal carcinoma (NPC). Cancer stem cells (CSCs) are regarded as one of the main reasons for tumor cell resistance to clinical therapy, and cancer metastasis or recurrence, while little is known about CSCs in NPC. The present study uncovers a subpopulation of cells labeled as CD45 − EPCAM + PROCR + in NPC biopsy samples that exhibit stem cell-like characteristics. A relatively low number of these cells initiate xenograft tumors in mice. Functional analysis reveals that protein C receptor (PROCR) not only serves as a stem cell marker in NPC, but also maintains tumor cells’ stemness potential through regulating lipid metabolism and mitochondrial fission. Epistatic studies reveal that cAMP-protein kinase A stimulates Ca2 + release to manipulate lipid metabolism related genes’ expression. Finally, in a cohort of 207 NPC samples, PROCR expression is correlated with tumor metastasis or recurrence, and predicts poor prognosis. These novel findings link PROCR labeled CSCs with lipid metabolism and mitochondrial plasticity, and provides new clinical target against metastatic or recurrent NPC.

Background and Aims: Magnesium (Mg) fertilizer has been proved to play an important role in improving the yield and quality of tea. However, plant availability of Mg, including its use, efficiency, and quality improvement effects, were highly affected by plant species, soil characteristics (nutritional status, etc.), and Mg status (chemical-available, etc.). Methods: Tea plants were pot-cultivated in 12 typical tea plantation soils amended with and without Mg fertilizer. Exchangeable Mg (Ex-Mg) concentration in soils was quantitatively extracted using four extraction solutions (Mehlich-3, BaCl 2 , CaCl 2 , and NH 4 OAC). Plant availability of Mg was evaluated by Mg uptake and its use efficiency, as well as its association with quality components in tea plants. Results: Ex-Mg in soils was extracted most efficiently by Mehlich-3, while Mg concentrations in tea plant tissue were higher correlated with Ex-Mg extracted by CaCl 2 than other extraction solutions. Mg fertilizer use efficiency in tea plant varied from 6.08 to 29.56 %, and the effect of Mg application on tea quality improvement and the use efficiency of Mg fertilizer both negatively correlated with total Mg concentration ( r = −0.94 and −0.63, respectively) and nitrogen (N) level ( r = −0.61 and −0.51, respectively) in soils prior to tea plant cultivation. Conclusions: CaCl 2 could be recommended for plant-available Mg extraction in tea plantation soil, and Mg fertilizer use efficiency could be affected and predicted by total N and Mg status in soils prior to tea plant cultivation, providing a potential theoretical for the guidance of Mg fertilization for tea yield and quality improvement in tea plantation management.