COVID-19 Cases from the First Local Outbreak of the SARS-CoV-2 B.1.1.7 Variant in China May Present More Serious Clinical Features: A Prospective, Comparative Cohort Study.

The SARS-CoV-2 B.1.1.

Incidence and related risk factors of radiographic knee osteoarthritis: a population-based longitudinal study in China.

Objective: To explore the incidence and risk factors for radiographic knee osteoarthritis (ROA) in a suburban area of China.

Methods: Shunyi Osteoarthritis Study was a population-based, longitudinal study of knee osteoarthritis in Shunyi, a suburban area of Beijing, China. A total of 1295 residents aged over 50 years were recruited with fully informed by randomized cluster sampling and were followed up 3 years later.

High Prevalence of Obesity but Low Physical Activity in Children Aged 9-11 Years in Beijing.

Objective: To investigate the prevalence and associated factors of childhood overweight/obesity in the Shunyi district of Beijing, China.

Methods: This study adopted a cross-sectional survey and included 10,855 children aged 6-18 years in the Shunyi district of Beijing, China. Analyses were stratified by age group (6-8, 9-11, 12-14, and 15-18 years).

Individualized resuscitation strategy for septic shock formalized by finite mixture modeling and dynamic treatment regimen.

Background: Septic shock comprises a heterogeneous population, and individualized resuscitation strategy is of vital importance. The study aimed to identify subclasses of septic shock with non-supervised learning algorithms, so as to tailor resuscitation strategy for each class.

Methods: Patients with septic shock in 25 tertiary care teaching hospitals in China from January 2016 to December 2017 were enrolled in the study.

Tracking bacterial DNA patterns in septic progression using 16s rRNA gene amplicon sequencing analysis.

Bloodstream infections remain prevalent in intensive care units, leading to a public health challenge worldwide. Routine diagnosis is mainly based on blood culture, but the technique is limited by its time-consuming process and relatively low sensitivity. Emerging molecular diagnostic tools, such as 16S metagenomics, have been developed for detecting bacteria in the blood samples of septic patients.

Novel pathogenic variants in the RECQL4 gene causing Rothmund-Thomson syndrome in three Chinese patients.

Rothmund-Thomson syndrome (RTS) is a rare autosomal-recessive disorder characterized by poikiloderma, short stature, sparse hair, skeletal abnormalities, and cancer predisposition. Mutations in ANAPC1 or RECQL4 have been identified to underlie RTS. Either Sanger sequencing or next-generation sequencing (NGS) was performed for three Chinese RTS patients.

Right ventricular systolic function is associated with health-related quality of life: a cross-sectional study in community-dwelling populations.

Background: Considerable evidence has been presented that heart and health-related quality of life are directly linked in patients with various diseases. This exploratory study investigated whether cardiac structure and function were associated with health-related quality of life in the general population.

Methods: This cross-sectional study was performed in five villages of Shunyi, a suburban district of Beijing, from June 2013 to April 2016.

Machine Learning Models to Improve the Differentiation Between Benign and Malignant Breast Lesions on Ultrasound: A Multicenter External Validation Study.

Purpose: This study aimed to establish and evaluate the usefulness of a simple, practical, and easy-to-promote machine learning model based on ultrasound imaging features for diagnosing breast cancer (BC).

Materials And Methods: Logistic regression, random forest, extra trees, support vector, multilayer perceptron, and XG Boost models were developed. The modeling data set of 1345 cases was from a tertiary class A hospital in China.

[Effects of interpregnancy interval on pregnancy outcomes of subsequent pregnancy: a multicenter retrospective study].

To explore the effects of interpregnancy interval (IPI) on pregnancy outcomes of subsequent pregnancy. A multicenter retrospective study was conducted in 21 hospitals in China. Information of age, height, pre-pregnancy weight, IPI, history of diseases, complications of pregnancy, gestational age of delivery, delivery mode, and pregnancy outcomes of the participants were collected by consulting medical records of pregnant women who had two consecutive deliveries in the same hospital during 2011 to 2018.

Association between the platelet to lymphocyte ratio, neutrophil to lymphocyte ratio and axillary lymph node metastasis in cT1N0 breast cancer patients.

Objective: To investigate the relationship between platelet-to-lymphocyte ratio (PLR), neutrophil-to-lymphocyte ratio (NLR) and axillary lymph node metastasis in cT1N0 breast cancer patients.

Methods: The clinicopathological data of 154 patients with cT1N0 breast cancer from January 2015 to June 2020 were retrospectively analyzed. All patients underwent sentinel lymph node (SLN) biopsy.

Prospective evaluation of first-trimester screening strategy for preterm pre-eclampsia and its clinical applicability in China.

Objectives: To evaluate, in a Chinese population, the performance of a screening strategy for preterm pre-eclampsia (PE) using The Fetal Medicine Foundation (FMF)'s competing-risks model and to explore its clinical applicability in mainland China.

Methods: This was a prospective, multicenter, observational cohort study including 10 899 women with singleton pregnancy who sought prenatal care at one of 13 hospitals, located in seven cities in mainland China, between 1 December 2017 and 30 December 2019. Mean arterial pressure (MAP), uterine artery pulsatility index (UtA-PI) and maternal serum levels of placental growth factor (PlGF) and pregnancy-associated plasma protein-A (PAPP-A) at 11 + 0 to 13 + 6 weeks' gestation were measured and converted into multiples of the median using Chinese reference ranges.

Dose escalation and expansion (phase Ia/Ib) study of GLS-010, a recombinant fully human antiprogrammed death-1 monoclonal antibody for advanced solid tumors or lymphoma.

Background: GLS-010, a novel engineered fully human immunoglobin G4 monoclonal antibody, can specially block the PD-1/PD-L1/2 axis and reactivate the antitumor immunity.

Aim: This phase Ia/Ib study was carried out to evaluate the safety, recommended phase II dose (R2PD), and primary antitumor effects of GLS-010 in patients with advanced, refractory lymphoma and solid tumors.

Methods: In phase Ia study, patients with refractory solid tumors and lymphoma enrolled and received GLS-010 at a dose of 1, 4, or 10 mg/kg Q2W; 240 mg Q3W or Q2W.

Supraclinoid internal carotid artery blister-like aneurysms: hypothesized pathogenesis and microsurgical clipping outcomes.

Background: Blister-like aneurysms (BLAs) on the supraclinoid segment of the internal carotid artery (ICA) are an enigma of cerebrovascular disease. Neither has a definite pathogenesis been so far identified, nor have uniform treatment guidelines been established for them. Our aim was to develop a hypothesis regarding the evolution of BLAs according to their macroscopic morphologies and to evaluate the efficacy of microsurgical clipping.

The inhibition of HeLa cells proliferation through SPARCL1 mediated by SPP1.

Secreted protein acidic and rich in cysteines-like 1 (SPARCL1) is implicated in tumor progression and considered as a tumor suppressor. Aim of the study is to investigate the role of SPARCL1 in the regulation of tumor biology. SPARCL1 expression in human cervical cells was determined through western blot and RT-PCR.

Application of the P300 potential in cognitive impairment assessments after transient ischemic attack or minor stroke.

The aims of this study were to determine the relationships between changes inlatency and amplitude of the P300 event-related potential component and cognitive impairmentsin patients after a transient ischemic attack (TIA) or a minor stroke and to assess thesuitability of the P300 for screening for cognitive impairments. Sixty-five TIA or minor stroke patients diagnosed at the NeurologyDepartment of Beijing Tiantan Hospital, Capital Medical University from June 2015 toDecember 2016 and 30 healthy people evaluated in the same period were included. Allpatients were examing neuropsychological scales and event-related potentials within7 ± 3 days of onset of the disease.

Design of the Shunyi study on cardiovascular disease and age-related brain changes: a community-based, prospective, cohort study.

Background: Rapid economic growth and increasing lifespan have contributed to an increasing burden of chronic non-communicable diseases in China. Population-based studies focusing on cardiovascular disease and age-related brain changes, with extensive clinical, genetic, and imaging data as well as a comprehensive evaluation of brain function are lacking in China. The Shunyi cohort study aimed to investigate the determinants and consequences of cardiovascular disease and age-related brain alterations among individuals residing in a rural area of Beijing.

The Potential Role of Regulatory B Cells in Idiopathic Membranous Nephropathy.

Regulatory B cells (Breg) are widely regarded as immunomodulatory cells which play an immunosuppressive role. Breg inhibits pathological autoimmune response by secreting interleukin-10 (IL-10), transforming growth factor- (TGF-), and adenosine and through other ways to prevent T cells and other immune cells from expanding. Recent studies have shown that different inflammatory environments induce different types of Breg cells, and these different Breg cells have different functions.

Surgical treatment for antiplatelet intracerebral hemorrhage (SAP-ICH): protocol for a prospective cohort study of emergency surgery for severe spontaneous intracerebral hemorrhage patients on long-term oral antiplatelet treatment.

Background: Despite the capability of emergency surgery to reduce the mortality of severe spontaneous intracranial hemorrhage (SSICH) patients, the effect and safety of surgical treatment for severe spontaneous intracranial hemorrhage (SSICH) patients receiving long-term oral antiplatelet treatment (LOAPT) remains unclear. In consideration of this, the cohort study is aimed at figuring out the effect and safety of emergency surgery for SSICH patients on LOAPT.

Methods: As a multicenter and prospective cohort study, it will be conducted across 7 representative clinical centers.

Long-Term Retrospective Analysis of Microvascular Decompression in Patients With Recurrent Trigeminal Neuralgia.

To explore the clinical characteristics of patients with recurrent trigeminal neuralgia (TN) and the experience of microvascular decompression (MVD) in the treatment of such patients. We retrospectively analyzed clinical data, imaging examination results, surgical methods, and treatment efficacies in 127 patients with recurrent typical TN from January 2005 to December 2014. The age of the recurrent group was higher than that of the non-recurrent group ( < 0.

The Association between Socioeconomic Factors and Visual Function among Patients with Age-Related Cataracts.

Background: With the development of the economy, socioeconomic factors, such as inequalities in the status of regional economies and the subsequent effects on health systems, have influenced the status of health. We explored the association between age-related cataracts and socioeconomic indicators, including the regional economy, health systems, and energy industries.

Methods: This was a prospective, multicenter, Chinese population-based, cross-sectional study.

[Incidence of eating problems and related factors in children aged 1-6 years].

To analyze the incidence of eating problems and risk factors in children aged 1-6 years, and provide evidence for formulating relevant prevention and control strategies. From June to December 2019, two community health service centers and two kindergartens were randomly selected in Shunyi district of Beijing by using stratified random cluster sampling method. Self-designed questionnaires were used to collect data on individual information, family information, and the incidence of eating problems and related factors.

Associations of household solid fuel for heating and cooking with hypertension in Chinese adults.

Objective: The association between indoor air pollution resulting from household solid fuel use for heating and cooking with hypertension or blood pressure (BP) remains less clear. This study aims to rectify these knowledge gaps in a large Chinese population.

Methods: During 2005-2009, 44 007 individuals aged 35-70 years with complete information on household solid fuel use for cooking and heating were recruited from 279 urban and rural communities of 12 centers.

Applied anatomical study on suprascapular nerve protection in reverse total shoulder arthroplasty.

Background: This study aimed to investigate the three-dimensional (3D) anatomical relationship between the suprascapular nerve and scapula, and the method of protecting the suprascapular nerve in reverse total shoulder arthroplasty (RTSA) METHODS: In the present study, 12 fresh adult cadaver shoulder specimens were dissected. X-ray and computed tomography (CT) were used to investigate the 3D scapular and suprascapular nerve images.

Results: The results revealed that the best fitting baseplate diameter was 24.