Publications by authors named "Hu-Cheng Yang"

Article Synopsis
  • The study investigates how prenatal exposure to metal mixtures affects fetal growth, focusing on differences between male and female fetuses.
  • Researchers analyzed data from 1,041 pregnant women, measuring 12 metals in maternal blood at various stages of pregnancy and assessing fetal growth through a specific indicator called biparietal diameter (BPD).
  • Findings reveal that cobalt has opposing effects on growth trajectories by sex; it negatively impacts male fetuses while positively affecting females, with significant interactions between metal exposure and sex influencing growth outcomes.
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  • - Prenatal and early-life exposure to air pollution and extreme temperatures are linked to increased risks of asthma and wheezing in children, but the specific vulnerable periods and how these effects vary by sex remain unclear.
  • - The study analyzed data from 468 mother-child pairs in Mexico City, finding that exposure to particulate matter (PM) and nitrogen oxides (NO) during mid-gestation and the first year of life significantly increased the odds of wheeze, with some temperature effects being less consistent.
  • - Results indicated that the impact of air pollution on respiratory issues is stronger in males, and a combined high exposure to PM and temperature during infancy led to an increased risk of wheeze.
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Background: This study aims to compare the efficacy and safety of chimeric antigen receptor T-cell (CAR-T) immunotherapy with standard treatment for B-cell lymphoma, providing evidence-based support for the more efficient use of CAR-T cell immunotherapy.

Methods: We conducted a comprehensive literature search of high-quality randomized controlled trials (RCTs) on CAR-T therapy for B-cell lymphoma in the following databases: Wanfang, Web of Science, CNKI, VIP database, and PubMed, up to February 2024. The outcome measures included objective remission rate (ORR), complete remission rate (CRR), and incidence of adverse reactions.

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Early life phthalates exposure has been associated with adverse respiratory outcomes. However, evidence linking prenatal phthalates exposure and childhood lung function has been inconclusive. Additionally, few studies have examined phthalates exposure as a mixture and explored sexually dimorphic associations.

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Nine jatrophane diterpenoids were isolated from the whole plant , including two new ones, helioscopnins A () and B (). Comprehensive spectroscopic data analysis and ECD calculations elucidated their structures, including absolute configurations. All compounds were evaluated for bioactivity towards autophagic flux by flow cytometry using HM mCherry-GFP-LC3 cells.

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  • PFAS, a group of environmental contaminants known for their immunosuppressive effects, may have a connection to rheumatoid arthritis (RA), but this link has been under-researched.
  • Using data from nearly 10,500 adults over multiple years, the study analyzed serum levels of different PFAS and self-reported RA cases to understand their association.
  • Results showed that higher concentrations of certain PFAS were linked to lower odds of RA, primarily in females, suggesting that exposure to these substances may influence the prevalence of RA in a sex-specific manner.
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Background: Ambient particulate matter (PM) has been recognized as inducing oxidative stress, which could contribute to mitochondrial damage and dysfunction. However, studies investigating the association between ambient PM and mitochondria, particularly mitochondrial DNA copy number (mtDNA-CN), have yielded inconsistent results.

Methods: We conducted comprehensive literature searches to identify observational studies published before July 17, 2023, examining the association between ambient PM exposure and mtDNA-CN.

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Colorectal cancer (CRC) is a widespread malignancy worldwide, and its relationship with pesticide exposure remains inconclusive. This study aims to elucidate the relationship between pesticide exposure and the risk of colon, rectal, or CRC, focusing on specific pesticide groups. We conducted an extensive literature search for peer-reviewed studies published up to March 31, 2023.

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Dry eye disease (DED) is a common disorder of tear secretion on the ocular surface caused by multiple factors with dry eyes as the main symptom, but until now studies focusing on relationship between local meteorological factors and ocular surface diseases in Urumqi are very limited. Besides, the effects of long-term and extreme meteorological factors on DED and the lag effect have not been fully evaluated. Electronic case information of 9970 DED outpatients from the Ophthalmology Department of the First Affiliated Hospital of Xinjiang Medical University (Urumqi, Xinjiang, China) between January 1, 2013, and December 31, 2020, was screened and analyzed.

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Three previously undescribed diterpenoids, helioscopnoids A-C, and eight known compounds were isolated from the whole plants of Euphorbia helioscopia. Their structures were established by extensive analysis of spectra and data comparison with previous literatures. Among them, compound 4 was identified as 24,24-dimethoxy-25,26,27-trinoreuphan-3β-ol with revised configurations of C-13, C-14, and C-17 (13R*, 14R*, 17R*).

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Background: It has been suggested that gestational diabetes mellitus (GDM) alters the growth trajectory of a fetus and increases the risk of abnormal birth weight. In spite of this, there is still a significant debate regarding the mode and optimal timing of diagnosing this condition. Our aim was to determine fetal growth velocity and birth biometry in pregnant women with GDM at varying risk levels.

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Some heavy metals are associated with periodontitis; whereas most of these associations have focused on individual metal, there are no specific studies on the effects of combined heavy metal exposure on periodontitis. We conducted an analysis on the association between urinary heavy metal exposure and periodontitis in participants aged 30 years and older using multiple logistic regression and Bayesian kernel machine regression (BKMR). This analysis was performed on data from the National Health and Nutrition Examination Survey from 2011 to 2014.

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Background: A growing number of studies have shown that prenatal exposure to chemical and non-chemical stressors has effects on fetal growth. The co-exposure of both better reflects real-life exposure patterns. However, no studies have included air pollutants and pregnancy-related anxiety (PrA) as mixtures in the analysis.

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Objective: This study aimed to elucidate the relationship between retinopathy status or severity and the all-cause and specific-cause mortality risk based on the updated National Health and Nutrition Examination Survey (NHANES) database and 2019 Public Access Link mortality file.

Methods: In this prospective cohort study, a total of 6,797 participants aged over 40 years based on NHANES 2005-2008 were analyzed. The severity of retinopathy was classified into 4 grades-no retinopathy, mild non-proliferative retinopathy (NPR), moderate to severe NPR, and proliferative retinopathy (PR).

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Background: Previous studies addressing the impact of environmental factors on TB prognosis are scarce, with only some studies examining the effect of particulate pollutants on TB mortality. Moreover, few studies have evaluated the effects of multiple gaseous pollutants and greenness exposures on newly treated TB patients on a large population scale.

Methods: Through the Centers for Disease Control and Prevention, data were collected from January 1, 2015 to December 31, 2020 for newly treated TB patients in Anhui Province, China.

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Hypertensive disorders of pregnancy (HDP), including gestational hypertension (GH) and preeclampsia (PE), cause significant morbidity and mortality among pregnant women. Several environmental toxins, particularly those that affect the normal function of the placenta and the endothelium, are emerging as potential risk factors for HDP. Among them, per- and polyfluoroalkyl substances (PFAS), widely used in a variety of commercial products, have been related to a variety of adverse health effects including HDP.

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Conjunctivitis is an inflammatory disease of the conjunctival tissue caused by a variety of causes; despite the conjunctiva being directly exposed to the external atmospheric environment, the important role of air pollution is not fully evaluated, especially in areas with poor air quality undergoing rapid economic and industrial development. Information on 59,731 outpatient conjunctivitis visits from 1 January 2013 to 31 December 2020 was obtained from the Ophthalmology Department of the First Affiliated Hospital of Xinjiang Medical University (Urumqi, Xinjiang, China), and data on six air pollutants including particulate matter with a median aerometric diameter of less than 10 and 2.5 mm (PM and PM, respectively), carbon monoxide (CO), sulfur dioxide (SO), nitrogen dioxide (NO), and ozone (O) from eleven standard urban background fixed air quality monitors were also recorded.

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Article Synopsis
  • - Conjunctivitis is a widespread eye condition marked by symptoms like redness, swelling, and increased eye discharge, influenced by both regular and extreme weather conditions, which haven't been thoroughly studied before.
  • - Researchers analyzed data from around 59,731 conjunctivitis patients over seven years in China, looking at daily weather variables and air quality to understand their effects on the number of outpatient visits.
  • - Findings showed that higher temperatures and humidity levels raised the risk of conjunctivitis visits, while higher atmospheric pressure lowered it; extreme weather conditions were also linked to varying risks based on patient demographics like gender and age.
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Background: There is growing evidence that the COVID-19 pandemic has had a dramatic impact on public mental health. However, less attention has been paid to left-behind experience college students (LBEs). This online study aimed to investigate the relationship between psychological capital (PsyCap) and anxiety among LBEs during COVID-19 pandemic, and further analyze the mediation role of self-esteem between them.

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  • The study explored the relationship between air pollutants, greenness, and mortality among 29,519 newly treated tuberculosis (TB) patients in Anhui province, finding that increased air pollution correlates with higher death risk.
  • Specifically, each 10 µg/m increase in particulate matter (PM) and sulfur dioxide (SO) was associated with significant increases in mortality risk, indicating a direct negative impact of poor air quality on TB patient survival.
  • Conversely, greater exposure to green spaces was linked to lower mortality rates, suggesting that enhancing greenness in living environments could help reduce the detrimental effects of air pollution on TB patients.
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Background: Emerging evidence suggests that per- and polyfluoroalkyl substances (PFAS) are endocrine disruptors and may contribute to the etiology of diabetes.

Objectives: This study aimed to systematically review the epidemiological evidence on the associations of PFAS with mortality and morbidity of diabetes and to quantitatively evaluate the summary effect estimates of the existing literature.

Methods: We searched three electronic databases for epidemiological studies concerning PFAS and diabetes published before April 1, 2022.

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  • The study examined the effects of prenatal exposure to phthalates on placental structure and function, utilizing data from 2,723 women in the Ma'anshan Birth Cohort.
  • It found significant relationships between various phthalate metabolites and placental weight, efficiency, and chorionic disc area across all trimesters, with some showing inverted U-shaped nonlinear trends.
  • However, combined exposure to multiple phthalate metabolites did not correlate with any placental measures, suggesting that individual phthalates have more impact than their mixtures.
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Background: As a communicable disease and major public health issue, many studies have quantified the associations between tuberculosis (TB) and meteorological factors with inconsistent results. The purpose of this multicenter study was to characterize the associations between ambient temperature, humidity and the risk of TB hospitalizations and to investigate potential heterogeneity.

Method: Data on daily hospitalizations for TB, meteorological factors and ambient air pollutants for 16 cities in Anhui Province were collected from 2015 to 2020.

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Article Synopsis
  • - The study reviews existing research on how per- and polyfluoroalkyl substances (PFAS) impact birth outcomes, finding inconsistent evidence on this issue.
  • - After analyzing 46 eligible studies, the research revealed statistically significant associations between PFAS exposure and various adverse birth outcomes, such as lower birth weight and increased risk of preterm birth.
  • - The overall evidence suggests a "moderate" level of reliability, indicating PFAS exposure is linked to various negative effects on birth outcomes like gestational age and small for gestational age.
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Traffic noise has attracted much attention as a significant and intractable public health threat. This study was designed as a systematical review to explore the association of traffic noise with different indicators of obesity, thus providing updated quantitative estimates for the pooled effect estimates of the existing literature. We conducted an extensive search for epidemiological studies that investigated the association of traffic noise with obesity in three electronic databases till February 23, 2021.

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