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Background: Learning flow is an optimal learning experience representing full engagement in one's studies. The belief-affect-engagement model and control-value theory suggest that positivity would be a motivator of learning flow, while positive affect in school would be a mediator of the relation between positivity and learning flow. Aims: The current research aimed to examine (1) the longitudinal relations among positivity, positive affect in school, and learning flow, and (2) the mediational role of positive affect in school between positivity and learning flow. Sample and Method: A sample of 4681 Chinese elementary school students (44.9% girls; M[subscript age] = 9.87 years, SD = 0.70 at Time 1) completed reliable measures for each construct on four occasions across 2 years, using 6-month intervals. Structural equation modelling was used for examining study hypotheses. Results: After controlling for gender, age, and family socioeconomic status, the results showed that (1) positivity, positive affect in school, and learning flow reciprocally facilitated each other directly; (2) positive affect in school mediated the relation between positivity and later learning flow, as well as the relation between learning flow and later positivity. Conclusions: These findings revealed that positivity, positive affect in school, and learning flow form a complex, dynamic system, suggesting that school professionals should consider monitoring and developing interventions based upon these variables as early as elementary school.

Although parental psychological control has been well-documented as a significant predictor of social anxiety among adolescents, few studies examine how changes in parental psychological control and adolescent social anxiety are reciprocally related at the within-person level, especially in Chinese culture. This longitudinal study examined reciprocal relations between parental psychological control and social anxiety, and the potential mediating role of self-concept clarity, by disentangling between- and within-person effects. A total of 4731 students (44.9% girls; Mage = 10.91 years, SD = 0.72) participated in a four-wave longitudinal study with 6-month intervals. Results from random intercept cross-lagged panel modeling indicated that parental psychological control directly predicted social anxiety, and vice versa. Parental psychological control indirectly predicted social anxiety via self-concept clarity, and social anxiety also indirectly predicted parental psychological control via self-concept clarity. These findings reveal a vicious cycle of mutual influence between parental psychological control and adolescent social anxiety in Chinese youth, and highlight the crucial role of self-concept clarity in the interplay between parenting and adolescent social functioning. [ABSTRACT FROM AUTHOR]

Based on the interplay between achievement goals theory and social comparison theory, our study focused on how achievement goals relate to subjective well-being in the school context in Chinese adolescents. Specifically, we addressed a theoretical model that specified that academic social comparisons and self-esteem would serve as mediators in the relation between achievement goals and subjective well-being in school in Chinese adolescents. At baseline, the sample included 894 students (461 girls and 433 boys) from grade 7. Students completed multiple self-report measures on three occasions at 1-year intervals. The findings from structural equation modeling analyses revealed that mastery goals, but not performance goals, displayed statistically significant indirect effects on subjective well-being in school successively via academic social comparisons and self-esteem. The results are discussed with respect to their implications for research and interventions in schools.

As peer relationships become paramount during early adolescence, there's a normative rise in social anxiety, coinciding with a peak in peer victimization and aggression. Although previous studies have suggested reciprocal associations between changes in social anxiety and adolescent peer victimization and aggression, the mechanics of these associations at the personal trait and time-varying state levels remains unclear. This study examined the longitudinal relations between social anxiety and adolescent peer victimization and aggression by disentangling between-person trait differences from within-person state processes. A total of 4731 Chinese early adolescents (44.9% girls; M age = 10.91 years, SD = 0.72) participated in a four-wave longitudinal study with 6-month intervals. Random-intercept cross-lagged panel model (RI-CLPM) was applied. The results revealed higher levels of social anxiety are associated with more peer victimization and aggression at the between-person trait level. At the within-person state level, adolescent social anxiety, and adolescent physical victimization and physical aggression, reciprocally predicted each other. Relational victimization significantly predicted an increase of social anxiety, but not vice versa. Social anxiety positively predicted relational aggression over time, whereas the effect of relational aggression on social anxiety was only observed at the initial stage of early adolescence. These findings highlight that various types of victimization and aggression might exhibit unique reciprocal associations with social anxiety. Distinguishing between the within-person state and between-person trait effects is crucial in research that informs the co-development of adolescent peer victimization, aggression, and social anxiety. [ABSTRACT FROM AUTHOR]

A meta‐analysis was performed to comprehensively assess the effects of video‐assisted thoracoscopy on surgical site wound infection and wound pain in patients with lung cancer. Studies on video‐assisted thoracoscopy for lung cancer were collected from PubMed, EMBASE, Cochrane Library, Web of Science, China National Knowledge Infrastructure, Chinese Biomedical Literature Database, and Wanfang database, from inception to January 2023. Two researchers independently screened the literature, extracted the data, and evaluated the quality of the included studies according to the inclusion and exclusion criteria. Meta‐analysis was performed using RevMan 5.4 software. Thirty‐one articles with a total of 3608 patients were included, with 1809 in the video‐assisted thoracoscopy group and 1799 in the control group. Compared with the control group, video‐assisted thoracoscopy significantly reduced surgical site wound infection (odds ratio: 0.22, 95% confidence interval [CI]: 0.14–0.33, P <.001) and surgical site wound pain at postoperative day 1 (standardised mean difference [SMD]: −0.90, 95% CI: −1.17 to −0.64, P <.001) and postoperative day 3 (SMD: −1.59, 95% CI: −2.25 to −0.92, P <.001). Thus, these results showed that video‐assisted thoracoscopy may have beneficial outcomes by reducing surgical site wound infection and pain. However, owing to the large variation in sample sizes and some methodological shortcomings, further validation is needed in future studies with higher quality and larger sample sizes. [ABSTRACT FROM AUTHOR]

Violent video game exposure (VVGE) is a significant predictor of adolescent cyberbullying perpetration. However, little is known about the mediating and moderated mechanisms between them. This study examined the mediating role of moral disengagement between VVGE and cyberbullying perpetration as well as the moderating role of callous-unemotional (CU) traits on those associations. A total of 2,523 Chinese adolescents (Mage = 13.22, SD = 1.60, 48.4 percent girls) participated this study. Structural equation modeling showed that VVGE was significantly related to cyberbullying perpetration and moral disengagement play a mediating role between them. Latent moderated structural equation modeling showed that CU traits strengthened the effect of VVGE on moral disengagement and of VVGE on cyberbullying perpetration. Results further showed that the mediating effect of moral disengagement was more prominent for youths who have higher levels of CU traits. Interventions to reduce moral disengagement and CU traits among adolescents may interrupt the effect of VVGE to cyberbullying perpetration. [ABSTRACT FROM AUTHOR]

This study examined the mediating role of social anxiety in the relation between cyberbullying victimization and nonsuicidal self-injury (NSSI), as well as the moderating role of emotion reactivity in those associations. Participants included 2,864 adolescents (Mage = 12.46, SD = 1.36, 47.1 percent girls). Results of path analysis showed that cyberbullying victimization was significantly related to NSSI, and social anxiety plays a mediating role in the relation between them. Emotion reactivity strengthened the effect of cyberbullying victimization on NSSI and of social anxiety on NSSI. The results further showed that the mediating effect of social anxiety was more prominent for youths who have higher levels of emotion reactivity. Interventions to reduce adolescent social anxiety and emotion reactivity may interrupt the pathway from cyberbullying victimization to NSSI. [ABSTRACT FROM AUTHOR]

Foreign exchange risk management is the focus of overseas construction enterprise management. The quality of its management will affect the profitability of enterprises to a large extent. It is also an important index for comprehensive evaluation of its internal management. The foreign exchange management strategies of China's overseas construction enterprises mainly include two ways: operational hedging and financial hedging. According to the data of overseas construction enterprises in China from 2011 to 2018, the empirical application shows that enterprises that use only financial hedging have a negative relationship with corporate profits. The better foreign exchange risk management strategy of enterprises should be a comprehensive foreign exchange risk prevention strategy, which mainly relies on operational hedging supplemented by financial hedging. [ABSTRACT FROM AUTHOR]

Introduction: Antineutrophil cytoplasmic antibody (ANCA)-associated vasculitis (AAV) is relatively rare in children. This article aimed to analyze clinical and renal histology findings and different responses to induction treatment associated with the long-term renal outcomes in children with AAV in a single center. Methods: All pediatric patients with AAV admitted to Tongji Hospital from January 2002 to January 2021 were included in the study. The demographic, clinical, pathological, laboratory, and treatment data and outcomes were collected and analyzed to identify predictors associated with response to induction treatment and progression to end-stage renal disease (ESRD). Results: In total, 48 children with AAV were included in this cohort; 81.25% of them were women, and 91.7% were microscopic polyangiitis (MPA). Kidney involvement was found in 45 patients (93.75%). The most common histopathological subtype was crescentic form in this cohort according to Berden's classification. In total, 34 patients (70.8%) showed eGFR <60 ml/min/1.73 m2 at the time of diagnosis. Complete and partial remission was achieved in 8 patients (16.7%) and 19 patients (39.6%), respectively, following 6-month induction treatment. Half of the patients eventually progressed to ESRD at a mean time of (13.04 ± 15.83) months after diagnosis. The independent predictors of nonremission following induction treatment and progression to ESRD were baseline eGFR <60 ml/min/1.73 m2 and hypertension at diagnosis. Renal survival significantly decreased over time in patients with renal sclerotic subtypes or those with nonremission following induction treatment by Kaplan–Meier curve estimation. Conclusions: Our study demonstrates that women, MPA, and crescentic subtypes are predominant in pediatric AAV in China. Initial renal failure (eGFR <60 ml/min/1.73 m2), hypertension, sclerotic pathological subtype, and nonremission following induction treatment are predictive of long-term renal outcomes. [ABSTRACT FROM AUTHOR]

Aggression among peers is a common and serious problem in school‐age children. Physical, relational, and cyber aggression often occur simultaneously but may exhibit heterogeneous developmental patterns. We aimed to identify heterogeneous co‐developmental patterns of physical, relational, and cyber peer aggression and to investigate the contributions of victimization experiences to co‐developmental trajectories. Participants were 2869 elementary school students (56.2% boys), initially in fourth grade (Mage = 10.51 years) in China. Longitudinal data on peer aggression were collected from participants semiannually for 2 years. Data on victimization experiences were collected in the initial measurement wave. Parallel process latent curve growth modeling produced four co‐developmental trajectories of peer aggression: High Desisting group, Moderate‐Increasing group, Moderate‐Physical and Relational Aggression group, and Low Stable group. Multivariate logistic regression analyses revealed that childhood emotional abuse, psychological maltreatment by teachers, as well as physical peer victimization, and cyber peer victimization, served as risk factors for severe co‐developmental trajectories. The findings highlight the co‐development of physical, relational, and cyber aggression. The identification of risk factors for co‐developmental trajectories points to the need for continued monitoring and protection from ongoing victimization experiences in the family and school settings to prevent or ameliorate aggressive behavior. [ABSTRACT FROM AUTHOR]

This study investigated the longitudinal associations between teacher support (i.e., emotional and instrumental support) and academic (i.e., math) achievement at the between-student and within-student levels using random intercept cross-lagged panel models (RI-CLPMs). Data were collected from 694 elementary school students in China (44.9% girls; M age = 10.53 years, SD = 0.70) over four waves across 2 school years. Results from the RI-CLPMs supported that higher academic achievement was significantly associated with higher teacher emotional and instrumental support at the between-student level. At the within-student level, the RI-CLPMs only supported the predictive effect of academic achievement on teacher instrumental support, but not emotional support. Further analysis utilizing cross-lagged panel models (CLPMs) demonstrated significant reciprocal effects between teacher emotional support and academic achievement, as well as instrumental support and academic achievement. No significant sex differences were observed in RI-CLPMs or CLPMs. The findings illustrate the importance of distinguishing the between-student and within-student associations in longitudinal relations concerning teacher support and academic achievement. [ABSTRACT FROM AUTHOR]

Few studies have simultaneously examined the underlying mechanisms of the link between violent video games exposure (VVGE) and aggression (as proposed by different theories) to examine how they explain the relationship between the concepts as independent–dependent variables. This study used a multi-informant design to examine the relationship between VVGE and the functions (proactive and reactive) of aggressive behaviors by comparing three mediating mechanisms: anger, moral disengagement, and cognitive impulsivity. The sample consisted of 2,095 Chinese children and adolescences (48.9 percent girls; Mage = 11.12 years, SD = 1.70) and their mothers. After controlling for age, gender, socioeconomic status, child maltreatment, and problematic traits, structural equation modeling indicated that anger and moral disengagement play mediating roles between VVGE and proactive and reactive aggression, but cognitive impulsivity only plays a mediating role between VVGE and reactive aggression. The discussion emphasizes the importance of creating prevention programs for anger, moral disengagement, and cognitive impulsivity to break the VVGE-to-aggression cycle, and provides suggestions for future research. [ABSTRACT FROM AUTHOR]

The physical properties of fuels have significant impact on the spray performances. Fischer-tropsch (FT) aviation fuel is mainly composed by paraffins compared with Chinese jet fuel (RP-3). Difference in composition determines the differences in physical properties. Spray characteristics of FT and the blends were investigated downstream of a pressure swirl nozzle exit at different injection pressures and compared with those of RP-3. The liquid length and the spray cone angle of FT fuel are up to18.2% and 6.75% higher than RP-3, respectively. In the area where the axial distance from nozzle exit is less than 10 mm, FT fuel has a higher droplet size and droplet velocity than RP-3. A reflux zone is observed in the hollow cone downstream the nozzle. The droplets' droplet diameter and velocity of FT fuel are 53.32% and 49.74% bigger than those of RP-3 in the reflux zone, respectively. The presence of the reflux zone is also believed to be responsible for the higher local droplet concentration in the spray. The spray performances of the blends containing 75% FT is close to that of RP-3. The differences in spray performances between the fuels are consistent with the expectation based on differences in physical properties. • The relationship between FT fuel properties and spray characteristics is discussed. • 75% mass fraction is considered acceptable for China's FT fuel. • The empirical formulas for FT and the blends are presented with a high precision. [ABSTRACT FROM AUTHOR]

Background: The study was conducted to investigate the clinicopathological features and prevalence of ROS1 gene fusion in Chinese patients with non‐small cell lung cancer (NSCLC). Methods: The presence of ROS1 fusion was assessed by quantitative real‐time PCR. Associations between ROS1 fusion and clinical characteristics were analyzed. Results: In total, 6066 patients with pathologically confirmed NSCLC and ROS1 fusion test results were enrolled. The average age was 60.89 ± 10.60 years and fusion was detected in 157 (2.59%) patients. Fusion frequency was significantly correlated with age, gender, smoking status (all P < 0.001), pathology type (P = 0.017), and lymph node metastasis stage (P = 0.027). ROS1 fusion‐positive patients were significantly younger (55.68 ± 11.34 vs. negative 61.02 ± 10.44 years; P < 0.01). Fusion frequency was higher in women (3.71% vs. men 1.81%), never‐smokers (3.33% vs. smokers 1.21%), and patients with adenocarcinoma (2.77% vs. squamous lung cancer 0.93%) and at advanced node stages (1.31%, 1.40%, 2.07%, and 3.23% for N0, N1, N2, and N3, respectively). No significant correlation between ROS1 fusion status and pathological stage was found in subgroups classified by pathological, tumor, or metastasis stage (P > 0.05). Age, smoking status, and lymph node stage were statistically significantly correlated with ROS1 fusion frequency (all P < 0.05); gender and pathology type were not significantly correlated with ROS1 fusion status after adjusting for smoking status. Conclusion: An overall ROS1 fusion frequency of 2.59% was confirmed in this study. ROS1 fusion was more prevalent among younger patients, never‐smokers, and those at advanced node stages. [ABSTRACT FROM AUTHOR]

There has been growing evidence of comorbidity between problematic internet game use and internalizing and externalizing problems in young people. However, little is known about the directionality and gender differences in these longitudinal relations at the symptoms level in the framework of network theory among youth. This study estimated the longitudinal relations between the symptoms of problematic internet game use, internalizing and externalizing problems, and the gender differences of these relations in Chinese youth using cross-lagged panel network modeling (CLPN). A sample of 1269 Chinese youth (M age = 10.35 years) participated in this study semi-annually at two time points. CLPN analysis was used to calculate the network model of problematic internet game use and internalizing and externalizing problems to explore bridge symptoms and find transmission pathways between problematic internet game use and internalizing and externalizing problems. The CLPN revealed significant gender differences. For boys, depressed mood , which leads to relationships turning sour in order to play online games , bridges the relations between internalizing symptoms and problematic internet game use. For girls, irritability is the central predictive symptom, causing a range of problems related to problematic internet game use, which can, in turn, lead to fights or feelings of worthlessness. However, the effect sizes for the pathways between problematic internet game use and internalizing/externalizing problems were relatively weak, and the comorbidity between their relations should not be over-interpreted. The current findings provide new evidence for understanding the directional relationship between the central characteristics of problematic internet game use and internalizing and externalizing problems in boys and girls. Gender-specific interventions targeting the central symptoms of internalizing and externalizing problems and problematic internet game use can help mitigate the vicious cycle of comorbidity among adolescents. • Cross-lagged panel network modeling (CLPN) was used. • The results revealed different longitudinal network patterns across gender. • Depressed mood was the central bridge for boys. • For girls, irritability was the central symptom. [ABSTRACT FROM AUTHOR]

Objective: The objective of this study is to investigate the histogenesis of lymphoepithelial carcinoma (LEC) and its relationship with Epstein-Barr virus (EBV).Materials and Methods: The expression of EBV was detected using in situ hybridization, and the CK5/6, p63, and p40 expression levels were detected using immunohistochemistry in 45 paraffin-embedded tissues from LEC.Results: In 45 paraffin-embedded LEC tissues from 10 different samples, the positive CK5/6 signals were located in the cell membrane. The positive signals for p63 and p40 were located in the cell nucleus. In all LEC cases, the positive rates of CK5/6, p63, and p40 were 93.3% (42/45), 95.6% (43/45), and 93.3% (42/45), respectively. The positive EBV-encoded RNA (EBER) signals were located in the cell nucleus. In the 45 LEC cases, the expression of EBER was strongly positive with a positive rate of 100% (45/45).Conclusions: LEC is closely related to EBV, and EBV plays an important role in the development of LEC. LEC showed positive squamous cell markers, indicating that the samples contain squamous cell carcinoma (SQCC). LEC is EBV (+) with nonkeratinizing SQCC, and this name better reflects the nature of this disease. [ABSTRACT FROM AUTHOR]

Background. Glomerular upregulation of miR-193a has been detected in primary focal segmental glomerulosclerosis (FSGS) but not in other glomerular diseases. We aimed to isolate exosomes from urine of children with primary FSGS and to assess the diagnostic potential of urinary exosomal miR-193a for primary FSGS. Methods. The first morning urine samples were collected from children with primary FSGS (n=8) and minimal change disease (MCD, n=5). Isolated urinary exosomes were confirmed by electron microscopy and Western blotting. Urinary exosomal microRNA was extracted, and the expression levels of exosomal miR-193a were quantified by real-time PCR. The diagnosis value of urinary exosomal miR-193a levels for primary FSGS was evaluated by ROC analysis. Results. The isolated vesicles were qualitatively compatible with exosomes. The levels of urinary exosomal miR-193a were significantly higher in children with primary FSGS than those in children with MCD. Moreover, the area under the ROC for the diagnosis of primary FSGS using urinary exosomal miR-193a was 0.85. Conclusions. A significant increase in the levels of urinary exosomal miR-193a in primary FSGS patients compared to those in MCD ones was observed. This study suggests that urinary exosomal miR-193a may be a new noninvasive biomarker for the diagnosis of primary FSGS. [ABSTRACT FROM AUTHOR]

The attenuated Chinese equine infectious anemia virus (EIAV) vaccine has successfully protected millions of equine animals from EIA disease in China. In this pilot study, to determine whether this attenuated vaccine can induce broadly neutralizing antibodies, we immunized four horses with the attenuated Chinese vaccine strain EIAVFDDV and then observed the evolution of neutralizing antibodies against different EIAV strains. During the vaccination phase, all vaccinees rapidly developed high levels of neutralizing antibodies against the homologous vaccine strain (pLGFD3V), and 3 out of 4 horses showed a gradual increase in serum neutralizing activity against two relatively heterologous virulent variants of the challenge strain (pLGFD3Mu12V and DLV34). After challenge, the three horses that had developed high levels of neutralizing antibodies against pLGFD3Mu12V and DLV34 did not show signs of infection, which was demonstrated by immune suppression, while the one horse producing serum that could only neutralize pLGFD3V developed a febrile episode during the 8-month observation period. To assess whether the broadly neutralizing activity is associated with immune protection, sera drawn on the day of challenge from these four vaccinees and an additional four EIAVFDDV-vaccinated horses were analyzed for neutralizing antibodies against pLGFD3V, pLGFD3Mu12V and DLV34. Although there was no significant correlation between protection from infection and serum neutralizing activity against any of these three viral strains, protection from infection was observed to correlate better with serum neutralizing activity against the two heterologous virulent strains than against the homologous vaccine strain. These data indicate that EIAVFDDV induced broadly neutralizing antibodies, which might confer enhanced protection of vaccinees from infection by the challenge virus. [ABSTRACT FROM AUTHOR]

lentiviral vaccine, live attenuated equine infectious anemia virus (EIAV) vaccine, was developed in the 1970s, and this has made tremendous contributions to the control of equine infectious anemia (EIA) in China. Four key virus strains were generated during the attenuation of the EIAV vaccine: the original Liao-Ning strain (EIAV), a donkey-adapted virulent strain (EIAV), a donkey-leukocyte-attenuated vaccine strain (EIAV), and a fetal donkey dermal cell (FDD)-adapted vaccine strain (EIAV). In this study, we analyzed the proviral genomes of these four EIAV strains and found a series of consensus substitutions among these strains. These mutations provide useful information for understanding the genetic basis of EIAV attenuation. Our results suggest that multiple mutations in a variety of genes in our attenuated EIAV vaccines not only provide a basis for virulence attenuation and induction of protective immunity but also greatly reduce the risk of reversion to virulence. [ABSTRACT FROM AUTHOR]

Background: Autosomal dominant tubulointerstitial kidney disease (ADTKD) caused by UMOD gene mutation (ADTKD-UMOD) is rare in children, characterized by hyperuricemia, gout, and progressive chronic kidney disease. It usually leads to end-stage renal failure at fiftieth decades. Here, we report a 3-year-old Chinese boy in an ADTKD family caused by a novel UMOD gene mutation.Case Presentation: A 3-year-old boy was admitted to our hospital because of persistent hematuria. Urinalysis showed BLD 2+ without proteinuria. The serum levels of uric acid, creatinine and electrolytes were normal. No renal cyst or calculus was found by ultrasonography. Renal biopsy was performed and focal and segmental glomerulosclerosis was found in 4 glomeruli among 35 glomeruli examined. His father was found with end-stage renal disease (ESRD) at the age of 29, and renal ultrasound showed several cysts in both kidneys. A novel heterozygous mutation (c.1648G > A,p.V550I) in exon 8 of UMOD gene was identified by whole exome sequencing in the family. SCBC Genome Browser alignment showed that V550 were highly conserved in uromodulin among different species. Software predicted that the mutation is suspected to be harmful. By literature review, there are 12 mutations of UMOD gene in 14 Chinese families including only one pediatric case(a 16-year-old girl).Conclusions: A novel heterozygous mutation (c.1648G > A,p.V550I) in exon 8 of UMOD gene was found in in a Chinese child case with ADTKD-UMOD, which extends our understanding of UMOD gene mutation spectrum and phenotype of ADTKD-UMOD in children. [ABSTRACT FROM AUTHOR]

Abstract Although the development of elementary school students' behavioral school engagement in Western societies has received much research attention, longitudinal research on its development and predictors in China is still sparse. This two-year, four-wave, accelerated longitudinal study investigated the developmental trajectory of behavioral school engagement across Grades 3–6 among Chinese school students. Based on positive psychology constructs, we investigated the longitudinal relations between subjective well-being (SWB) in school and behavioral school engagement. Data were collected from self-report questionnaires completed by 1057 children (572 males, M age = 9.4) from Grades 3–5 at the time of the first assessment. Analyses of latent growth curve models indicated a curvilinear trend of behavioral school engagement with an initial increase followed by a slight decrease. Analyses of autoregressive cross-lagged models showed that SWB in school and behavioral school engagement were reciprocally predictive over time. Although cross-cultural research is needed, our findings suggest a possible, unique influence of Chinese culture in shaping the developmental pattern of Chinese students' behavioral school engagement and the role of school-aged children's SWB in school in their behavioral school engagement. Limitations and implications of this study were discussed. Highlights • Cross-lagged models were used to examine the longitudinal relations between SWB in school and behavioral school engagement. • This study investigated the development of behavioral school engagement across Grades 3–6 among Chinese school students. • This study indicated that SWB in school and behavioral engagement were reciprocally predictive over time. • Gender and grade level differences in the relations between SWB in school and behavioral school engagement were investigated. [ABSTRACT FROM AUTHOR]

Ultrasonography is the most widely used technique to diagnose echinococcosis; however, challenges in using this technique and the demand on medical resources, especially in low-income or remote areas, can delay diagnosis. We aimed to develop a deep convolutional neural network (DCNN) model based on ultrasonography to identify echinococcosis and its types, especially alveolar echinococcosis. • This study used 9631 ultrasound images from patients assessed at 84 hospitals in China, obtained between Jan 1, 2002, and Dec 31, 2021. Patients with a diagnosis of cystic echinococcosis, alveolar echinococcosis, or seven other types of focal liver lesions were included. • We tested ResNet-50, ResNext-50, and VGG-16 as the backbone network architecture for a classification DCNN model and input the perinodular information from the ultrasound images. We trained and validated the DCNN model to diagnose and classify echinococcosis using still greyscale ultrasound images of focal liver lesions. • We then tested the algorithm on internal, external, and prospective test datasets. The performance of DCNN was also compared with that of 12 radiologists in a subset of ultrasound data that were randomly chosen from the prospective test dataset. Results The DCNN model was shown to be accurate and robust, and could improve the ultrasound diagnostic ability of radiologists for Echinococcosis and its types for highly endemic and remote regions. [ABSTRACT FROM AUTHOR]

Epstein-Barr virus (EBV) is the first identified human tumor-related DNA virus, and has a high infection among people worldwide. Recent studies have showed that nearly 10% of gastric cancers have shown EBV infection and this kind of gastric cancer has been identified as a new subtype: EBV associated Gastric cancer (EBVaGC). Furthermore, it has been reported that tumor related genes in the EBVaGC showed frequent methylation modifications compared to those in the EBV negative gastric cancer (EBVnGC). To fully understand the role of EBV in EBVaGC, we analyzed and found that 16.67% of gastric carcinoma samples showed positive EBER1 signals. Mechanically, EBV-encoded Latent membrane protein 1 (LMP1) inhibited the expression of RASSF10, and promoted tumorigenesis by recruiting DNMT1 and inducing the DNA methylation of RASSF10. Altogether, it allows us a better understanding of the possible mechanism of EBV-induced gene hypermethylation in gastric cancer genome. Targeting EBV-induced DNA methylation is a potential therapeutic modality of EBVaGC. • High rate of EBV infection in gastric carcinoma samples from south China. • RASSF10 was hypermethylated in the EBVaGC specimens. • EBV LMP1 promoted DNA methylation of RASSF10 gene in gastric cancer cells. • These results reveal a critical role of EBV infection in EBVaGC. [ABSTRACT FROM AUTHOR]

• Mechanisms between bullying victimization and online game addiction were examined. • Presence of meaning attenuated the effects of bullying victimization for boys. • Search for meaning amplified the effects of bullying victimization for boys. • Presence of meaning played mediating roles for girls. Although the risk effect of bullying victimization on youths' online game addiction has been well established, little is known about the potential mediating and moderating mechanisms that account for the relationship between them. This study considered two dimensions of meaning in life (i.e., the presence of meaning and the search for meaning) as underlying mediating and moderating variables to explain the link between bullying victimization and online game addiction among Chinese early adolescents. We examined gender differences in these relationships. The sample included 1665 Chinese early adolescents (48.9% girls; Mage = 11.80 years, SD = 1.23) and their mothers. Latent structural equation modeling showed that the model for boys was consistent with moderation, that is, the presence of meaning buffered against the ill effects of bullying victimization on boys' online game addiction, whereas the search for meaning amplified the association between bullying victimization and online game addiction. The model for girls was consistent with mediation, that is, the presence of meaning but not the search for meaning may have explained how victimization led to online game addiction. Suggested intervention and prevention strategies include helping youths enhance their sense of the presence of meaning and guiding male adolescents to search for positive and advanced meaning in life. [ABSTRACT FROM AUTHOR]

The present study investigated the relations between maternal depressive symptoms and internalizing problems in offspring during late childhood and early adolescence, examining sex differences using symptom network analysis. A total of 885 Chinese youths in late childhood (n = 497, 38.6% girls; age = 9.58 years, SD = 0.24) and early adolescence (n = 388, 48.5% girls; age = 11.30 years, SD = 0.24) and their mothers (M age = 37.34 years, SD = 5.42) were recruited. Cross-lagged panel network (CLPN) analysis was used to explore bridge symptoms (i.e., symptoms connecting two or more mental disorders) and identify transmission pathways between maternal depressive symptoms and offspring's internalizing problems at these two developmental stages. The CLPN results revealed that in late childhood, the bridge connections in the network model were boys feeling worried to mothers feeling distractible, and girls feeling worried to mothers feeling powerless. In early adolescence, the bridge connections were boys experiencing depressed mood to mothers feeling powerless, and mothers feeling bad to girls experiencing depressed mood. These findings highlight the network-level relations between maternal depressive symptoms and offspring internalizing problems. They provide insights into the developmental differences and similarities in symptoms during these periods and suggest ways to break the vicious cycle of psychopathology between mothers and their children., (© 2024. The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature.)

Background: Anaplastic lymphoma kinase (ALK) test in advanced non-small cell lung cancer (NSCLC) can help physicians provide target therapies for patients harboring ALK gene rearrangement. This study aimed to investigate the real-world test patterns and positive rates of ALK gene rearrangements in advanced NSCLC., Methods: In this real-world study (ChiCTR2000030266), patients with advanced NSCLC who underwent an ALK rearrangement test in 30 medical centers in China between October 1, 2018 and December 31, 2019 were retrospectively analyzed. Interpretation training was conducted before the study was initiated. Quality controls were performed at participating centers using immunohistochemistry (IHC)-VENTANA-D5F3. The positive ALK gene rearrangement rate and consistency rate were calculated. The associated clinicopathological characteristics of ALK gene rearrangement were investigated as well., Results: The overall ALK gene rearrangement rate was 6.7% in 23,689 patients with advanced NSCLC and 8.2% in 17,436 patients with advanced lung adenocarcinoma. The quality control analysis of IHC-VENTANA-D5F3 revealed an intra-hospital consistency rate of 98.2% (879/895) and an inter-hospital consistency rate of 99.2% (646/651). IHC-VENTANA-D5F3 was used in 53.6%, real-time polymerase chain reaction (RT-PCR) in 25.4%, next-generation sequencing (NGS) in 18.3%, and fluorescence in-situ hybridization (FISH) in 15.9% in the adenocarcinoma subgroup. For specimens tested with multiple methods, the consistency rates confirmed by IHC-VENTANA-D5F3 were 98.0% (822/839) for FISH, 98.7% (1,222/1,238) for NGS, and 91.3% (146/160) for RT-PCR. The overall ALK gene rearrangement rates were higher in females, patients of ≤ 35 years old, never smokers, tumor cellularity of > 50, and metastatic specimens used for testing in the total NSCLC population and adenocarcinoma subgroup (all P < 0.05)., Conclusions: This study highlights the real-world variability and challenges of ALK test in advanced NSCLC, demonstrating a predominant use of IHC-VENTANA-D5F3 with high consistency and distinct clinicopathological features in ALK-positive patients. These findings underscore the need for a consensus on optimal test practices and support the development of refined ALK test strategies to enhance diagnostic accuracy and therapeutic decision-making in NSCLC., (© 2024 The Author(s). Cancer Communications published by John Wiley & Sons Australia, Ltd on behalf of Sun Yat‐sen University Cancer Center.)

Objective: In this multi-informant, 3-year longitudinal study, the bidirectional relations between externalizing and internalizing problems were investigated, along with whether peer victimization and academic achievement mediated their relations after separating between-person effects from within-person effects., Method: A sample of 3238 Chinese children (55.02% boys; M age T1 = 9.89 years) reported semiannually on peer victimization and both externalizing and internalizing problems, and parents reported on their children's externalizing and internalizing problems. Students' objective academic achievement data (i.e. final exam scores) were obtained from school records., Results: Random intercepts cross-lagged panel modeling (RI-CLPM) revealed that neither academic achievement nor peer victimization mediated the relations between externalizing and internalizing problems in both self and parent reports at the within-person level. The cross-lagged panel models (CLPM) results supported that peer victimization (but not academic achievement) mediated the relations from internalizing to externalizing problems or externalizing to internalizing problems, whether self-reported or parent-reported. This study also identified meaningful sex differences in focal relations among children., Conclusions: Findings illustrate the importance of distinguishing within-person and between- person associations, with within- person findings failing to support the hypothesized mediating pathways of the Dual Failure or Acting Out Models among children.

Background: The variants of nucleoporins are extremely rare in hereditary steroid-resistant nephrotic syndrome (SRNS). Most of the patients carrying such variants progress to end stage kidney disease (ESKD) in their childhood. More clinical and genetic data from these patients are needed to characterize their genotype-phenotype relationships and elucidate the role of nucleoporins in SRNS., Methods: Four patients of SRNS carrying biallelic variants in the NUP93, NUP107 and NUP160 genes were presented. The clinical and molecular genetic characteristics of these patients were summarized, and relevant literature was reviewed., Results: All four patients in this study were female and initially presented with SRNS. The median age at the onset of the disease was 5.08 years, ranging from 1 to 10.5 years. Among the four patients, three progressed to ESKD at a median age of 7 years, ranging from 1.5 to 10.5 years, while one patient reached stage 3 chronic kidney disease (CKD3). Kidney biopsies revealed focal segmental glomerulosclerosis in three patients. Biallelic variants were detected in NUP93 in one patient, NUP107 in two patients, as well as NUP160 in one patient respectively. Among these variants, five yielded single amino acid substitutions, one led to nonsense mutation causing premature termination of NUP107 translation, one caused a single nucleotide deletion resulting in frameshift and truncation of NUP107. Furthermore, one splicing donor mutation was observed in NUP160. None of these variants had been reported previously., Conclusion: This report indicates that biallelic variants in NUP93, NUP107 and NUP160 can cause severe early-onset SRNS, which rapidly progresses to ESKD. Moreover, these findings expand the spectrum of phenotypes and genotypes and highlight the importance of next-generation sequencing in elucidating the molecular basis of SRNS and allowing rational treatment for affected individuals., (© 2024. The Author(s).)

Relationships with parents and teachers are crucial to a child's socialization. However, little is known about the transactional processes between parent-child and teachers-student relationships and their mediating mechanisms. This short-term longitudinal study examined bidirectional relations between positive parent-child and teachers-student relationships, and the potential mediating role of positivity within these relations. There were 3,450 Chinese children (44.8% girls; M age = 10.93 years) who participated in a four-wave longitudinal study, spaced 6 months apart. The random intercept cross-lagged panel modeling found: (a) both father-child and mother-child relationships directly predicted teachers-student relationships, and vice versa; (b) positivity functioned as a mediator in bidirectional relations between parent-child and teachers-student relationships. These results support a transactional spillover effect between parent-child and teachers-student relationships, suggesting Chinese children may become caught in a virtuous cycle either directly or indirectly via their positivity. (PsycInfo Database Record (c) 2024 APA, all rights reserved).

Family dysfunction plays an important role in cyberbullying and cybervictimization. However, little research has investigated the longitudinal relations and the mediating mechanisms between them during adolescence. This study examined the longitudinal relations between family dysfunction and cyberbullying and cybervictimization, along with whether depressive symptoms function as mediators between them at the within-person level. A total of 3,743 Chinese adolescents (46.2% females; M age = 9.92 years; SD = 0.51) participated a five-wave longitudinal study with a 6-month time interval. The results of random intercept cross-lagged panel model found that: (1) family dysfunction directly predicted depressive symptoms and vice versa at the within-person level; (2) depressive symptoms directly predicted cyberbullying and cybervictimization at the within-person level, but not vice versa; (3) family dysfunction indirectly predicted cyberbullying and cybervictimization via depressive symptoms at the within-person level; (4) at the between-person level, there were significant associations among family dysfunction, depressive symptoms, cyberbullying and cybervictimization. The results are discussed on the basis of the mechanisms that lead to cyberbullying and cybervictimization.

This longitudinal study examined bidirectional relations between parental harsh punishment and psychoticism at the between‑ and within‑family levels in Chinese adolescents. There were 3,307 Chinese youth (43.6% girls, M age = 11.30 years, SD  = 0.24) who participated in a 4-wave longitudinal study, spaced 12 months apart. The results of cross-lagged panel modeling (i.e. CLPM) found the significant bidirectional relations between parental harsh punishment and psychoticism at the between-family level. However, the within-person level analysis of random intercept cross-lagged panel modeling (i.e. RI-CLPM) only revealed parental harsh punishment significantly predicted youth psychoticism, but not vice versa. Moreover, no sex differences were observed in the bidirectional relations between parental harsh punishment and psychoticism at the between- or within-family level. These results suggest parental harsh parenting could exacerbate the psychoticism trait at both the between- and within-family level, whereas the influence of young people's psychoticism on harsh parenting response from parents occurs only at the between-family level. The findings help to understand the nature of the dynamic process of change between psychoticism and harsh parenting among Chinese adolescents.

The surge of medical waste (MW) generated during the COVID-19 pandemic has exceeded the disposal capacity of existing facilities. The timely, safe, and efficient emergency disposal of MW is critical to prevent the epidemic spread. Therefore, this review presents the current status of MW generation and disposal in China and analyzes the characteristics and applicability of emergency disposal technologies. The results show that movable disposal facilities can dispose of infectious MW on site, even though most of their disposal capacity is at a low level (<5 t/day). Co-disposal facilities need to be reformed completely for emergency MW disposal, in which separate feeding systems should be taken seriously. Specifically, municipal solid waste (MSW) incineration facilities have great potential to improve emergency MW disposal capacities. For hazardous waste incineration facilities, compatibility of the wastes must be matched to the composition and calorific value of the waste. As for cement kiln, MW can only be used as an alternative fuel instead of a raw material for cement. Based on the environmental risk and technical adaptability, the six emergency MW disposal technologies are recommended to be prioritized as follows: movable microwave sterilization, movable steam sterilization, movable incineration, co-incineration with hazardous waste, co-incineration with MSW and co-disposal in cement kilns. Infectious MW, especially COVID-19 MW, should be prioritized for disposal by centralized and movable disposal facilities, while non-infectious MW can be disposed of using co-disposal facilities. All stakeholders should strengthen the delicacy management of the end-of-life stage of MW, including collection, classification, packaging identification, transportation, and disposal. Currently, it is necessary for centralized disposal enterprises to follow the emergency disposal operation flowchart. From a long-term strategic perspective, making full use of regional movable and co-disposal facilities in the megacities can effectively enhance the emergency MW disposal capacity., Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2021 Elsevier B.V. All rights reserved.)

The coordinated supply and demand of ecosystem services (ESs) is important for ensuring regional sustainable development. However, research identifying key areas of imbalanced supply and demand of ESs at the urban agglomeration scale is limited. Therefore, in this study, using the Fujian Delta urban agglomeration of China as the research area, based on multi-source data, and analysis tools, such as ArcGIS, ENVI, and GeoDa, we constructed a research framework and indicator system for ESs supply and demand to determine the spatial change law, matching degree, and coupling coordination degree (CCD) of the ESs. On this basis, the key areas of imbalanced supply and demand of ESs were identified, and optimization strategies were proposed. The results showed that (1) there is obvious spatial heterogeneity between ESs supply and demand in the study area, and different degrees of spatial changes occurred with urbanization. Specifically, areas with large changes were concentrated in urban core areas and economic development zones. (2) The matching degree between ESs supply and demand is quite diverse and shows a trend of polarization. Under the influence of urbanization, some cities began facing ESs supply shortages. (3) Overall, the CCD between ESs supply and demand in the study area is in a state of mild incoordination, but with increasing urbanization, some cities have turned into a state of extreme incoordination. Our results indicate that the ESs supply and demand status in some cities at the urban agglomeration scale has become increasingly severe. Therefore, it is necessary to focus on certain "key areas" to formulate optimization strategies. For key areas with "low supply-high demand" and extreme incoordination, the population and land use intensity should be controlled to reduce the ESs demand level. Meanwhile, for key areas with "high supply-low demand" and extreme incoordination, the utilization efficiency of ecological resources should be improved to enhance the ESs supply capacity. The results of this study will help decision-makers optimize the relationship between ESs supply and demand in order to achieve the sustainable development of urban agglomeration., Competing Interests: Declaration of competing interest No conflict of interest exits in the submission of this manuscript, and manuscript is approved by all authors for publication. Our manuscript has not been published previously or submitted elsewhere for publication in whole or in part., (Copyright © 2021 Elsevier B.V. All rights reserved.)

Objectives: In this study, the genetic diversity, phylogenetic grouping, antimicrobial resistance and extended-spectrum β-lactamase (ESBL) types of Escherichia coli isolates from chickens, dogs, pigs and yaks in six prefectures of Gansu and Qinghai Provinces, China, were investigated., Methods: E. coli was isolated from diarrhoeic and healthy faecal samples. Multilocus sequence typing (MLST), phylogenetic grouping, antimicrobial resistance and ESBL profiles were investigated., Results: A total of 142 MLST sequence types (STs) were identified from 400 E. coli isolates. eBURST clustering analysis resolved the 142 STs into 19 clonal complexes (CCs) and 67 singletons. PCR phylogenetic typing determined the isolation rate of potentially pathogenic B2/D group isolates among all E. coli to be 12.5% from healthy animal samples and 17.5% from diarrhoeic samples. Antimicrobial susceptibility testing revealed 78 antimicrobial resistance patterns. E. coli resistance rates were highest to doxycycline, ampicillin and tetracycline, whereas polymyxin B and meropenem had the lowest resistance rates. All polymyxin B-resistant E. coli isolates were positive for the mcr-1 gene. A total of 62 ESBL-producing isolates were identified. The ESBL prevalence was 55.0% in diarrhoeic samplings and 5.6% in healthy animals. TEM (82.3%) was the predominant ESBL type, followed by CTM (43.5%) and SHV (19.4%)., Conclusion: E. coli isolates in the study area have a high diversity of genetic and antimicrobial resistance patterns but a relatively low isolation rate of potentially pathogenic phylogroups. However, the somewhat high isolation rate of multidrug-resistant E. coli, particularly ESBL-producing isolates, requires continual surveillance of E. coli from animals in these areas., (Copyright © 2020 Lanzhou Veterinary research institute ,CAAS. Published by Elsevier Ltd.. All rights reserved.)

Background: Three cases of the application of focused cardiac ultrasound in patients with coronavirus disease 2019 are presented., Methods: Cardiac point-of-care ultrasound, limited transthoracic echocardiography, and critical care echocardiography were applied in cases of heart failure, pulmonary embolism, and myocarditis with thrombus respectively., Results: The impact on patient management and the global context of each presentation are discussed., Conclusions: Focused cardiac point-of-care ultrasound played an important, front-line role in the bedside management of patients during the COVID-19 pandemic in Wuhan, China., (Copyright © 2020 American Society of Echocardiography. Published by Elsevier Inc. All rights reserved.)

Objectives: Although the relation between low self-esteem and depression has been well established, little is known about the possible psychological mechanisms that account for the relation between them. Based on Beck's cognitive theory of depression, the main aim of this study was to explore the notion that rejection sensitivity and loneliness serve as mediators of the relation between low self-esteem and depression among early adolescents., Design: Using a longitudinal design, we evaluated the hypothesized model with a sample of 866 Chinese early adolescents (51% females) between 11 and 15 years old who completed questionnaires on three occasions at 1-year intervals., Results: Structural equation modelling showed that: (1) low self-esteem at Time 1 positively predicted depression at Time 3; (2) rejection sensitivity at Time 2 partially mediated the relation between low self-esteem at Time 1 and depression at Time 3; (3) low self-esteem at Time 1 demonstrated partial indirect effects on depression at Time 3 successively via rejection sensitivity and loneliness at Time 2; and (4) rejection sensitivity predicted an increase in loneliness but not vice versa, and depression accounted for later loneliness, but not for rejection sensitivity., Conclusions: The associations between low self-esteem and depression among early adolescents may be explained by rejection sensitivity and loneliness. These results suggest implications for effective interventions for depression in early adolescents., Practitioner Points: Low self-esteem is a risk factor for depression in early adolescents, and rejection sensitivity and loneliness help explain the vulnerability model. Implementing empirically based intervention plans to overcome low self-esteem may be helpful in efforts to reduce depression in early adolescents. Effective interventions should likely include efforts to decrease rejection sensitivity and loneliness and their effects, such as training to interpret verbal and behavioural cues in social interactions more accurately and to develop more effective social skills to enhance social confidence., (© 2018 The British Psychological Society.)

Introduction: Cervical cancer rates in China remain high, with only limited opportunistic screening in urban centers and large mostly unscreened rural areas. Cervical cytology practices in China have been changing over the last decade with introduction of The Bethesda System reporting terminology, liquid-based cytology (LBC), and programs for cervical cytology screening of underserved rural populations. An effort was undertaken for the first time to collect nationwide data on cervical cytology laboratory practices in China, a possible first step toward increased standardization and potential development of nationwide cytology quality benchmarks., Materials and Methods: Data on cervical cytology practices from 1572 laboratories operating in 26 nationwide Provisional Level Administrative Divisions was collected in an online survey approved through the Obstetrics and Gynecology Hospital of Fudan University in Shanghai., Results: Over 90% of cervical cytology laboratories in China now solely use Bethesda System reporting terminology. LBC is now the most commonly utilized form of cervical cytology, with lower-cost Chinese-manufactured LBC formulations used in almost 70% of laboratories. Nationwide, significantly higher abnormal cytology rates were reported with LBC than with the conventional Papanicolaou smear (CPS); however, the CPS remains a useful low-cost alternative as China strives to extend cervical screening to large underserved rural areas., Conclusions: Abnormal cytology rates were not significantly different when different levels of hospitals were compared. The survey identified nationwide opportunities for cytology quality improvement, including low rates of reporting of unsatisfactory cases and low rates for atypical glandular cells., (Copyright © 2019 American Society of Cytopathology. Published by Elsevier Inc. All rights reserved.)

Cystic fibrosis (CF) is a fatal autosomal-recessive disease caused by mutations in the CF transmembrane conductance regulator (CFTR) gene. CF is characterized by recurrent pulmonary infection with obstructive pulmonary disease. CF is common in the Caucasian population but is rare in the Chinese population. The symptoms of early-stage CF are often untypical and may sometimes manifest as Bartter syndrome (BS)-like hypokalemic alkalosis. Therefore, the ability of doctors to differentiate CF from BS-like hypokalemic alkalosis in Chinese infants is a great challenge in the timely and accurate diagnosis of CF. In China, sporadic CF has not been diagnosed in children younger than three years of age to date. Three infants, who were initially admitted to our hospital over the period of June 2013 to September 2014 with BS-like hypokalemic alkalosis, were diagnosed with CF through exome sequencing and sweat chloride measurement. The compound heterozygous mutations of the CFTR gene were detected in two infants, and a homozygous missense mutation was found in one infant. Among the six identified mutations, two are novel point mutations (c.1526G > C and c.3062C > T) that are possibly pathogenic. The three infants are the youngest Chinese patients to have been diagnosed with sporadic CF at a very early stage. Follow-up examination showed that all of the cases remained symptom-free after early intervention, indicating the potential benefit of very early diagnosis and timely intervention in children with CF. Our results demonstrate the necessity of distinguishing CF from BS in Chinese infants with hypokalemic alkalosis and the significant diagnostic value of powerful exome sequencing for rare genetic diseases. Furthermore, our findings expand the CFTR mutation spectrum associated with CF.

Objective: The objective of this study is to evaluate the effect of simvastatin on the jaw bone microstructural defect and autophagy in rats with high cholesterol diet (HCD)., Methods: Male Sprague-Dawley rats were fed a standard rodent chow (NC group) or a high cholesterol diet for 32 weeks and the HCD-fed rats were treated with vehicle (HC group) or simvastatin (5 mg/kg orally daily for 8 weeks, HC + SIM group, and n = 10/group). The static histomorphometric changes in the jaw bone tissues in individual rats were evaluated. The relative levels of OPG, RANKL, NF- κ B, LC3, and p62 in the jaw bone tissues were determined by quantitative RT-PCR and/or immunohistochemistry., Results: Compared with the NC group, the HC groups had lower trabecular bone volume, trabecular thickness and trabecular number, and increased ratios of RANKL/OPG in the jaw bone, accompanied by enhanced NF- κ B activation and autophagy. Simvastatin treatment inhabited these changes, including the decreased levels of serum proinflammatory cytokines and increased autophagy., Conclusion: Simvastatin treatment could inhibit the hyperlipidemia-induced jaw bone microstructural defect in rats by increasing autophagic flux.

Objective: To investigate whether survival is improved by using the right thoracic approach (extended lymphadenectomy) compared with the left thoracic approach (limited lymphadenectomy) for esophageal cancer., Background: The optimal surgical technique for esophageal cancer remains unclear., Methods: Between May 2010 and July 2012, 300 patients with middle and lower thoracic esophageal carcinoma were randomized to receive esophagectomy through either the right or left thoracic approach. Of these, 286 patients with squamous cell carcinoma determined by postoperative pathology were included in this analysis. Disease-free survival (DFS) and overall survival (OS) were compared between the right (n = 146) and left thoracic groups (n = 140)., Results: The median follow-up was 55.9 months [95% confidence interval (CI): 53.1-58.6]. The 3-year DFS rates were 62% and 52% in the right and left thoracic arms, respectively [hazard ratio (HR) 0.709; 95% CI, 0.506-0.995; P = 0.047, log-rank test]. The 3-year OS rates were 74% and 60%, respectively (HR, 0.663; 95% CI, 0.457-0.961; P = 0.029). Subgroup analyses revealed longer DFS in the right thoracic arm (vs left thoracic arm) in patients with lymph node involvement (HR, 0.632; 95% CI, 0.412-0.969, P = 0.034), but not in patients without lymph node involvement (HR, 0.757; 95% CI, 0.434-1.320, P = 0.325), and in patients with R1-2 resection margins (HR, 0.495; 95% CI, 0.290-0.848, P = 0.009), but not R0 margins (HR, 0.944; 95% CI, 0.603-1.477, P = 0.801)., Conclusions: Compared with the left thoracic approach, the right thoracic approach associated with increased DFS and OS in esophageal squamous cell carcinoma patients, particularly in those with lymph node involvement and/or R1-2 resection margins.

Background: LAMB2 mutations cause Pierson syndrome (OMIM 609049), an autosomal recessive genetic disease typically characterized by congenital nephrotic syndrome (CNS) and early onset renal failure, as well as bilateral microcoria. NPHP1 mutations cause familial juvenile nephronophthisis type 1 (NPHP1, OMIM 256100), another autosomal recessive renal disease that usually occurs years after birth. Both Pierson syndrome and nephronophthisis cause end-stage renal disease and rare kidney diseases in children. We report an extremely rare case of concurrent mutations of LAMB2 and NPHP1 in a Chinese girl with isolated CNS and the association of the phenotype with novel non-truncating mutations of LAMB2., Case Presentation: A-34-day-old girl presented with CNS but no eye abnormalities, and mild hyperechogenicity of kidneys. A novel c.1176&#95;1178delTCT mutation caused deletion of a glycine in exon 9 of LAMB2, and another mutation c.4923 + 2 T > G led to a splicing error. In addition, compound heterozygous mutations of NPHP1 were identified in this child using next generation sequencing, and confirmed by Sanger sequencing., Conclusion: Mutations of the LAMB2 and NPHP1 are present in infants with isolated CNS. Next generation sequencing enabled high-throughput screening for mutant genes promptly, with clinically significant outcomes. In addition, our results expand the phenotype spectrum of LAMB2 mutations as the only renal manifestation.

Objective: To investigate the association between the genotypes, sequence variations and phylogenetic origins of strains of Helicobacter pylori with gastric cancer in Chinese patients., Methods: Strains of H. pylori were isolated from patients with chronic gastritis and gastric cancer. Genotypes of the cagA and vacA genes were determined using polymerase chain reaction. Sequence analysis was used to detect variations in the 3' and 5' regions of cagA, and to detect known polymorphisms in cagE. A phylogenetic tree was constructed based on the analysis of seven housekeeping genes., Results: A total of 67 strains of H. pylori were analysed. Nearly all strains of H. pylori carried cagA (65/67; 97.0%), an East Asia type of the cagA 3' region (63/65; 96.9%) and the vacA intermediate (i)1 genotype (65/67; 97.0%). None of the H. pylori strains examined had sequence variations in the 5' region of cagA or cagE. Phylogenetic analyses, however, revealed that strains of H. pylori from gastric cancer tended to cluster together., Conclusions: Virulent strains of H. pylori were highly prevalent, but virulent genotypes of H. pylori associated with gastric cancer were not detected in this geographical region., (© The Author(s) 2014 Reprints and permissions: sagepub.co.uk/journalsPermissions.nav.)

HIV CRF07 B'/C is a strain circulating mainly in northwest region of China. The gp41 region of CRF07 is derived from a clade C virus. In order to compare the difference of CRF07 gp41 with that of typical clade B virus, we solved the crystal structure of the core region of CRF07 gp41. Compared with clade B gp41, CRF07 gp41 evolved more basic and hydrophilic residues on its helix bundle surface. Based on sequence alignment, a hyper-mutant cluster located in the middle of HR2 heptads repeat was identified. The mutational study of these residues revealed that this site is important in HIV mediated cell-cell fusion and plays critical roles in conformational changes during viral invasion., (© 2013 Elsevier Inc. All rights reserved.)