Publications by authors named "Siying Guo"

Brain effective connectivity (EC) is a functional measurement that reflects the causal effects and topological relationships of neural activities. Recent research has increasingly focused on the classification for mental illnesses and healthy controls using brain EC; however, no comprehensive reviews have synthesized these studies. Therefore, the aim of this review is to thoroughly examine the existing literature on constructing diagnosis model for mental illnesses using brain EC.

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Plant architecture is a main determinate of crop yield, and lateral branching significantly influences the number of inflorescences and seeds. The mechanism of axillary bud initiation remains unclear. This work aimed to examine how miRNAs regulate axillary bud initiation.

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Background: The diagnosis of glioma has advanced since the release of the WHO 2021 classification with more molecular alterations involved in the integrated diagnostic pathways. Our study aimed to present our experience with the clinical features and management of astrocytoma, IDH mutant based on the latest WHO classification.

Methods: Patients diagnosed with astrocytoma, IDH-mutant based on the WHO 5th edition classification of CNS tumors at our center from January 2009 to January 2022 were included.

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  • The study investigates intratumoral hemorrhage as a potential initial sign of glioma, analyzing its prevalence in different glioma types and its correlations with patient genetics and outcomes.
  • Conducted on 457 patients who underwent surgery, the study discovered that 14.7% presented with hemorrhage, leading to older age and poorer health scores among this group.
  • Results indicated that specific genetic alterations (CDKN2B, KMT5B, and PIK3CA) were more common in patients with hemorrhage and those individuals faced worse prognoses compared to their non-hemorrhage counterparts.
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  • The 2021 WHO Classification updates the glioma grading system, highlighting amplification (Amp) as a key diagnostic marker for glioblastoma (GBM).
  • A study analyzed 187 adult glioma patients from 2011 to 2022, finding that Amp was more prevalent in IDH-wildtype gliomas and GBM compared to IDH-mutant gliomas.
  • Results suggested that while Amp did not impact overall survival in IDH-mutant gliomas, it was associated with poorer survival outcomes in IDH-wildtype diffuse gliomas and GBM, confirming its role as a diagnostic marker.
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  • The study aimed to identify factors that can predict overall survival in glioma patients being treated with bevacizumab, analyzing data from 102 patients over an 11-year period.
  • A nomogram was created using 19 clinical and 60 molecular variables, revealing that lower tumor grades, previous radiochemotherapy, and wildtype EGFR status were associated with longer survival.
  • The model exhibited moderate performance with a concordance index of 0.652, suggesting it could help doctors predict treatment benefits for these patients.
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Previous studies on exposure to violence lack a nuanced understanding of the causal effects of different exposure types on offending behaviors. This study, drawing on Pathways to Desistance Study (PDS) data tracking 1354 adjudicated youths aged 14-18 over 7 years, explores the contemporaneous (cross-sectional), acute (after 1 year), enduring (after 3 years), and long-term (after 6 years) causal effects of violence exposure on property and violent offending. The sample, predominantly male (86%), consisted of White (20%), Black (42%), and other (38%) individuals.

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  • Cognitive impairment is prevalent in diffuse glioma patients, prompting a study to explore the link between preoperative cognitive function and various clinical and molecular factors based on the updated 2021 WHO classification.
  • The study involved 110 patients who underwent cognitive assessments and had their clinical data and gene sequencing analyzed, revealing significant factors like age, tumor location, and glioblastoma type affecting cognitive function.
  • Genetic alterations such as IDH, CIC, and ATRX are identified to have positive correlations with cognitive aspects, highlighting the need to consider both clinical and molecular characteristics for better management of glioma patients and overall cognitive outcomes.
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Background: Spinal cord stimulation (SCS) is a surgical technique used in patients with chronic intractable pain, and its effectiveness and safety have been validated by multiple studies. However, to maintain an optimal and steady long-term effect is still challenging. Here, we report a new management paradigm integrating smartphone application and remote programming.

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Background: The latest fifth edition of the World Health Organization (WHO) classification of the central nervous system (CNS) tumors (WHO CNS 5 classification) released in 2021 defined astrocytoma, IDH-mutant, Grade 4. However, the understanding of this subtype is still limited. We conducted this study to describe the features of astrocytoma, IDH-mutant, Grade 4 and explored the similarities and differences between histological and molecular subtypes.

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Introduction: Glioblastoma (GBM), the most lethal primary brain malignancy, is divided into histological (hist-GBM) and molecular (mol-GBM) subtypes according to the 2021 World Health Organization classification of central nervous system tumors. This study aimed to characterize the clinical, radiological, molecular, and survival features of GBM under the current classification scheme and explore survival determinants.

Methods: We re-examined the genetic alterations of IDH-wildtype diffuse gliomas at our institute from 2011 to 2022, and enrolled GBMs for analysis after re-classification.

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Purpose: To evaluate significant risk variables for sepsis incidence and develop a predictive model for rapid screening and diagnosis of sepsis in patients from the emergency department (ED). Methods: Sepsis-related risk variables were screened based on the PIRO (Predisposition, Insult, Response, Organ dysfunction) system. Training (n = 1,272) and external validation (n = 568) datasets were collected from Peking Union Medical College Hospital (PUMCH) and Beijing Tsinghua Changgung Hospital (BTCH), respectively.

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Introduction: The fifth edition of the World Health Organization (WHO) classification of central nervous system (CNS) tumors released in 2021 formally defines pediatric-type diffuse gliomas. However, there is still little understanding of pediatric-type diffuse gliomas, and even less attention has been paid to adult patients. Therefore, this study describes the clinical radiological, survival, and molecular features of adult patients with pediatric-type glioma.

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4E-BP1 is a tumor suppressor regulating cap-dependent translation that is in turn controlled by mechanistic target of rapamycin (mTOR) or cyclin-dependent kinase 1 (CDK1) phosphorylation. 4E-BP1 serine 82 (S82) is phosphorylated by CDK1, but not mTOR, and the consequences of this mitosis-specific phosphorylation are unknown. Knock-in mice were generated with a single 4E-BP1 S82 alanine (S82A) substitution leaving other phosphorylation sites intact.

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Nickel-iron based hydr(oxy)oxides have been well recognized as one of the best oxygen-evolving catalysts in alkaline water electrolysis. A crucial problem, however, is that iron leakage during prolonged operation would lead to the oxygen evolution reaction (OER) deactivation over time, especially under large current densities. Here, the NiFe-based Prussian blue analogue (PBA) is designed as a structure-flexible precursor for navigating an electrochemical self-reconstruction (ECSR) with Fe cation compensation to fabricate a highly active hydr(oxy)oxide (NiFeO H ) catalyst stabilized with NiFe synergic active sites.

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Background: The 5th edition of the World Health Organization (WHO) classification of central nervous system tumors incorporated specific molecular alterations into the categorization of gliomas. The major revision of the classification scheme effectuates significant changes in the diagnosis and management of glioma. This study aimed to depict the clinical, molecular, and prognostic characteristics of glioma and its subtypes according to the current WHO classification.

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SARS-CoV-2 NSP12, the viral RNA-dependent RNA polymerase (RdRp), is required for viral replication and is a therapeutic target to treat COVID-19. To facilitate research on SARS-CoV-2 NSP12 protein, we developed a rat monoclonal antibody (CM12.1) against the NSP12 N-terminus that can facilitate functional studies.

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In large-scale observational data with a hierarchical structure, both clusters and interventions often have more than two levels. Popular methods in the binary treatment literature do not naturally extend to the hierarchical multilevel treatment case. For example, most K-12 and universities have moved to an unprecedented hybrid learning module during the COVID-19 pandemic where learning modes include hybrid and fully remote learning, while students were clustered within a class and school region.

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Objectives: Developed to keep youth in school and out of court, the Philadelphia Police School Diversion Program allows youth to avoid arrest for specified school-based summary and misdemeanor offenses. This study examined whether diverted youth were also less likely to experience exclusionary discipline, both in response to the referring incident and in the following calendar year.

Hypotheses: We predicted that diverted youth-compared to youth arrested in schools the year before program implementation-would have been less likely to receive a suspension for their school-based incident, receive a suspension in the year following the incident, and be referred for permanent school removal in the year following the incident.

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Adopting the integrated model of General Strain Theory (GST), the current study tested the relations between cyberbullying roles (i.e., cyberbully, cybervictim, and cyberbully-victim) and delinquent behaviors (i.

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Under the integrated model of General Strain Theory (GST), the present study sought to examine whether delinquent peer association, social control, and negative emotion moderated the relations of distinctive cyberbullying roles with delinquency, as well as whether the moderating effects varied by gender among a nationally representative sample of American adolescents. Based on the data from the 2009-2010 Health Behavior in School-Aged Children study in the U.S.

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Objectives: Created to combat the school-to-prison pipeline, the Philadelphia Police School Diversion Program offers voluntary community-based services to eligible youth accused of minor school-based offeses in lieu of arrest. This study evaluated program effectiveness in accomplishing goals related to reductions in school-based arrests, serious behavioral incidents, and recidivism.

Hypotheses: We expected the annual number of school-based arrests in Philadelphia schools to decrease over the program's first 5 years and predicted that the annual number of serious behavioral incidents would not increase.

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Background: Research on generational transmission of violence in general suggests that corporal punishment leads to children's aggressive behavior. However, less clear is the intervening mechanisms that link corporal punishment with adolescent aggression and the moderation on the intervening mechanisms.

Objectives: This study examined the mediating role of negative emotions, endorsement of violence, and low self-control in the association between parental corporal punishment and adolescent aggression and investigated whether the intervening mechanisms operated differently according to different levels of parental responsiveness and demandingness.

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Family processes, adolescent religious involvement, and self-control may serve as important mechanisms that mediate the relationship between parental religious involvement and delinquency. However, at present no study has systematically investigated the relationships among these factors and how these mediating mechanisms work. To address this gap, path analyses are conducted to test the hypothesized pathways whereby parental religious involvement operates to discourage delinquent behaviors of offspring.

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