Publications by authors named "Weili Yan"

Article Synopsis
  • The study investigates how air pollution exposure before conception affects childhood weight and BMI growth in children up to 2 years old in Shanghai, China.
  • It finds that higher levels of certain air pollutants (PM and NO) during the preconception period are linked to increased BMI and weight in children.
  • The research indicates that younger mothers and those with pre-existing overweight/obesity experience a greater impact from preconception air pollution exposure on their children's growth trajectories.
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An enzyme-linked immunosorbent assay (ELISA) based anti-drug antibody (ADA) assay was developed to support the clinical development of a bispecific antibody biotherapeutic anti-A/B. This anti-A/B clinical ADA Version 1 (V1) assay was successfully validated initially using commercial samples from the target indication. However, applying the validation cut point factors (CPFs) led to a high untreated ADA positive rate in the Phase 1 study baseline sample analysis.

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Background: Scoliosis is a spinal deformity in which one or more spinal segments bend to the side or show vertebral rotation. Some artificial intelligence (AI) apps have already been developed for measuring the Cobb angle in patients with scoliosis. These apps still require doctors to perform certain measurements, which can lead to interobserver variability.

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The species PhPNNC 1 reacts with the group 13 Lewis acids E(CF) (E = B or Al), HB(CF), ClAl(CF) and ECl (E = Ga or In) to give the Lewis acid-base adduct PhPNNCB(CF) 2, the zwitterionic product (PhPNH)B(CF)CNB(CF)H 3, the chelated salts [(PhPNNC(CN)NPPh)ER][EXR] (E = Al, R = X = CF, 4; E = Al, R = CF, X = Cl, 5; E = Ga, R = X = Cl, 6), and the neutral species [(PhPNNC(CN)NPPh)InCl] 7. The nature of these variations in reactivity are rationalized and the potential utility considered.

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  • A study was conducted on 1000 preconception Chinese women to identify genetic factors (SNPs) affecting folate levels and related biomarkers like vitamin B-12 and homocysteine.
  • Key findings included that the MTHFR rs1801133 SNP significantly influenced RBC folate and homocysteine, while other SNPs were linked to serum folate and vitamin B-12 levels.
  • This research is the first of its kind in this demographic, highlighting the genetic factors affecting nutrient levels important for pregnancy preparation.
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Demographic characteristics and clinical data of all newly diagnosed biliary atresia patients in Shanghai were collected from 1 January 2015 to 31 October 2016. The total number of live births was 377 420 during the study period, and the incidence of biliary atresia in Shanghai was 10.86 per 100 000 (95% CI 7.

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Article Synopsis
  • - The study investigates the link between folate-dependent one-carbon metabolism (OCM) and autism spectrum disorder (ASD) by comparing plasma OCM metabolites in children with ASD to neurotypical children.
  • - Results show significant differences in ten out of twenty-two metabolites, with higher levels of S-adenosylmethionine (SAM) and lower levels of S-adenosylhomocysteine (SAH) and other metabolites in children with ASD.
  • - The findings suggest disturbances in methionine methylation and trans-sulfuration pathways in children with ASD, indicating potential for targeting OCM as a therapeutic avenue for ASD.
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Background: We aimed to evaluate the trajectory of skin barrier properties in full-term newborns during the first four days after birth.

Methods: Based on the MKNFOAD cohort (NCT02889081), transepidermal water loss (TEWL), stratum corneum hydration (SCH), skin pH, and sebum content at five anatomical sites (cheek, forehead, volar forearm, abdomen, and dorsal lower leg) were examined once within 96 h after birth in 384 full-term infants. Multivariable linear regression analysis was performed to assess variations in these skin barrier parameters with age adjusted for gestational age, neonate's sex, parents' allergy history, delivery mode, amniotic fluid characteristics, and birth weight.

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Purpose: This study aims to evaluate a combined effect of dietary folic acid intake, multiple genetic polymorphisms in folate metabolism, and other environmental factors on red blood cell (RBC) folate concentration in pregnancy-preparing population.

Methods: 519 pregnancy-preparing subjects (260 couples) were investigated. Dietary intake was measured by 3-day dietary recalls.

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  • Abnormal heart development linked to Cornelia de Lange syndrome (CdLS) is related to mutations in cohesin complex genes, specifically SMC3, though the mechanisms are not fully understood.
  • This study found that patients with SMC3 mutations show high occurrences of congenital heart disease (CHD) and used Smc3-knockout mice to investigate heart pathologies like outflow tract (OFT) abnormalities.
  • Researchers discovered that SMC3 deletion affects gene expression related to heart development by reducing interactions between super-enhancers and promoters, revealing SMC3's critical role in regulating genes important for cardiac development and its potential link to CHD.
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Background: Prompt and precise differential diagnosis of biliary atresia (BA) among cholestatic patients is of great importance. Matrix metalloproteinase-7 (MMP-7) holds great promise as a diagnostic marker for BA. This study aimed to investigate the accuracy of age-specific serum MMP-7 for discriminating BA from other cholestatic pediatric patients.

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Background: Heterotaxy (HTX) is a thoracoabdominal organ anomaly syndrome and commonly accompanied by congenital heart disease (CHD). The aim of this study was to analyze rare copy number variations (CNVs) in a HTX/CHD cohort and to examine the potential mechanisms contributing to HTX/CHD.

Methods: Chromosome microarray analysis was used to identify rare CNVs in a cohort of 120 unrelated HTX/CHD patients, and available samples from parents were used to confirm the inheritance pattern.

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Pediatric patients with coronary artery lesions (CALs) after Kawasaki disease (KD) may be complicated with myocardial ischemia. Although previous studies in adults have proven the diagnostic value of Tc-MIBI myocardial perfusion imaging (MPI) for ischemic heart disease, its feasibility and accuracy in this pediatric population remain uncertain. In this retrospective study, we collected data of 177 pediatric patients (Age range: 6 months to 14 years) who had undergone MPI and coronary artery angiography (CAG) between July 2019 and February 2023.

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is distributed globally and incurs considerable economic and ecological costs as an agricultural pest and viral vector. The entomopathogenic fungus has been known for its insecticidal activity, but its impacts on whiteflies are understudied. We investigated how infection with the semi-persistently transmitted Cucurbit chlorotic yellows virus (CCYV) affects whitefly susceptibility to exposure.

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  • The study investigates the effectiveness of waist-to-height ratio (WHtR) compared to waist circumference (WC) and body mass index (BMI) in identifying youths at risk for cardiometabolic issues.
  • Data from over 34,000 children and adolescents from multiple countries was analyzed, focusing on those with cardiometabolic risk factors, carotid intima-media thickness (cIMT), and arterial stiffness.
  • Results showed that WHtR, WC, and BMI performed similarly in identifying at-risk youths, with WHtR being highlighted as a simple and effective screening tool for clinical use.
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Article Synopsis
  • * Conducted in China with 44 children aged 1 to 18, the study involved administering rituximab after corticosteroid-induced remission and tracking relapse-free survival over 12 months.
  • * Results showed a significant increase in 12-month relapse-free survival (74.4% in the rituximab group vs. 30.3% historical controls), along with favorable outcomes for long-term survival and tolerability of rituximab treatment.
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Background: Congenital heart disease (CHD) is a leading cause of birth defect-related mortality. However, more recent CHD mortality data for China are lacking. Additionally, limited studies have evaluated sex, rural-urban, and region-specific disparities of CHD mortality in China.

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Urinary tract infections (UTIs) are among the most common late-onset infections in preterm infants, characterized by nonspecific symptoms and a pathogenic spectrum that diverges from that of term infants and older children, which present unique diagnostic and therapeutic challenges. Existing data on the role of gut microbiota in UTI pathogenesis in this demographic are limited. This study aims to investigate alterations in gut microbiota and fecal calprotectin levels and their association with the development of UTIs in hospitalized preterm infants.

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This study aimed to explore the associations of growth and body composition with gut microbiome and metabolome in preterm infants. A prospective cohort study including 73 human milk-fed very preterm infants was conducted. During hospitalization, fecal samples were collected to detect microbes and metabolites using 16S rRNA gene sequencing and liquid chromatography-mass spectrometry.

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Objective: Cardiac surgery in Congenital Heart Disease-Heterotaxy (CHD-HTX) patients often leads to increased postoperative airway complications. Abnormal respiratory ciliary function, resembling primary ciliary dyskinesia, has been observed. We expanded the sample size by retrospectively reviewing Ciliary Dysfunction (CD) in CHD-HTX patients to verify the increased risk of post-surgical respiratory complications.

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Background: Human milk fortifier (HMF) composition has been optimized recently. But clinical evidence of its safety and efficacy is limited in Chinese population. The aim of this study was to evaluate effects of a new HMF in growth, nutritional status, feeding intolerance, and major morbidities among very preterm (VPT) or very low birth weight (VLBW) infants in China.

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Background: As a severe morbidity during pregnancy, the etiology of spontaneous pregnancy loss (SPL) remains largely unknown. Serum glycated hemoglobin (HbA) level is an established predictor of SPL risk among women with diabetes, but little is known about whether such an association exists among pregnant women without diabetes when glycemic levels are within the normal range.

Objective: This study aimed to quantify the association between maternal HbA levels in early pregnancy and subsequent SPL risk in a cohort of pregnant women without diabetes.

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Article Synopsis
  • This study examines how exposure to greenery affects birth weight, focusing on specific time periods during pregnancy.
  • Researchers analyzed data from nearly 14,000 pregnant women and their babies in Shanghai between 2016 and 2019, using vegetation indices to evaluate greenness exposure.
  • Findings indicate that greater exposure to greenery, especially in the second trimester, is linked to higher birth weight, with stronger effects observed in urban areas and among those lacking nearby parks.
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Background: Trajectories of stratum corneum (SC) lipid subclasses and their associations with infant atopic dermatitis (AD) are unclear. This study aimed to quantify the trajectories of 15 SC subclasses and carbon chain lengths and their associations with AD within 12 months.

Methods: In total, 213 newborns were enrolled at birth with nonlesional skin samples collected from the inner forearm at birth, 42 days, 3, 6, and 12 months, respectively.

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Background: Feeding intolerance (FI) is a significant concern in the care of preterm infants, impacting their growth and development. We previously reported that FI is linked to lower fecal calprotectin (FC) levels. This study aims to explore the postnatal dynamics and interplay between microbiota, metabolic profiles, and host immunity in preterm infants with and without FI.

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Synopsis of recent research by authors named "Weili Yan"

  • - Weili Yan's recent research encompasses diverse fields, focusing on biochemical interactions, genetic influences on health, and pediatric medical conditions, as seen in studies related to Lewis acid reactivity, folate metabolism, and biliary atresia outcomes.
  • - Key findings include the identification of genetic polymorphisms influencing folate-related biomarkers in preconception women and the significant incidence and clinical complexities of biliary atresia in Shanghai, pinpointing health disparities.
  • - The research also explores associations between dietary intake and serum metabolites in relation to health outcomes in children with autism spectrum disorder, emphasizing the need for a multifactorial understanding of pediatric conditions and their metabolic underpinnings.