Mei Dong Yan

Mei Dong Yan


Research Focus & Metrics

Academic Career Length

14Years (2013-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

View All Publications
3 July 2014 in Nanotechnology
Verified
Journal Article
Closed access
JCJun Chen
Jun Chen
XYXiaoquan Yang
Xiaoquan Yang
YMYuan-Zheng Meng
Yuan-Zheng Meng
HHHuan-Huan Huang
Huan-Huan Huang
MQMeng-Yao Qin
Meng-Yao Qin
ZMZhi-Ya Ma
Zhi-Ya Ma
Probe bismuth sulfide modified with Pluronic F127 (Bi2S3-PF127), which has high biocompatibility and dispersibility, is synthesized using triblock copolymer Pluronic F127 to modify hydrophobic Bi2S3 nanoparticles that are prepared by a hot injection method. TEM results show that most of the probe has a length of about 14.85 ± 1.70 nm and a breadth of about 4.79 ± 0.63 nm. After injected into the tail vein of a mouse, the probe has obvious CT contrast enhancement capability from x-ray CT imaging results. Meanwhile, the probe's in vivo toxicity is also studied. It is found that hematoxylin and eosin stains of major organs have no change. A biochemical analysis (alanine aminotransferase and aspartate aminotransferase) prove the probe has no adverse effects. The results of a blood analysis (white blood cell count, red blood cell count, hemoglobin, and platelet count) are also normal. The biological distribution of Bi by ICP-AES shows that most of nanoparticles are cleaned out after injection 48 h, and the circulation half-life of the probe is 5.0 h, suggesting that Bi2S3-PF127 has a long circulation and indicating that the Bi2S3-PF127 probe has good biocompatibility and safety.

1 January 2020 in Evidence-Based Complementary and Alternative Medicine
Verified
Journal Article
Open access
PDF file
YWYanping Wang
Yanping Wang
XZXu Zhou
Xu Zhou
XCXiaofan Chen
Xiaofan Chen
FWFei Wang
Fei Wang
WZWeifeng Zhu
Weifeng Zhu
HSHongcai Shang
Hongcai Shang
Background. Shengmai injection (SMI) is made from purified ginseng, Radix Ophiopogonis, and Schisandra chinensis. It has cardiotonic effects and is clinically used for the adjuvant treatment of chronic heart failure (CHF). However, its efficacy and safety are uncertain. The purpose of this study was to systematically evaluate the existing efficacy and safety evidence in randomized controlled trials (RCTs) that studied SMI for the treatment of CHF. Methods. PubMed, Embase, Cochrane Library, clinicaltrials.gov, CNKI, Wanfang, VIP, and CBM databases were searched up to September 10, 2019. RCTs that compared basic Western medicine treatment with SMI + basic Western medicine were included. The Cochrane Collaboration Risk of Bias Tool was used to assess the risk of bias in the RCTs. The meta‐analysis used the random effects model; the mean difference (MD) and 95% confidence intervals (CIs) were combined using the inverse variance method, and the Mantel–Haenszel method was used to combine the relative risk (RR) and 95% CIs. Heterogeneity was assessed using I2 and Q tests, and the source of heterogeneity was explored by analyzing three preset subgroup hypotheses. Results. A total of 20 RCTs were included (n = 1562), with a moderate‐to‐high risk of bias. The meta‐analysis showed that, compared with Western medicine alone, SMI adjuvant therapy significantly improved cardiac function indicators, including left ventricular ejection fraction (MD 6.8%, 95% CI 4.68 to 8.91), stroke volume (MD 9.81 ml, 95% CI 5.67 to 13.96), cardiac output (MD 0.96 L/min, 95% CI 0.66 to 1.25), and cardiac index (MD 0.53 L/min, 95% CI 0.36 to 0.70); heterogeneity was generally high among these outcomes. Compared with the controls, patients receiving SMI adjuvant therapy also had a higher response to treatment (RR 2.89, 95% CI 2.10 to 3.99; I2 = 0%), a greater decrease in brain natriuretic peptide levels (MD −284.66 ng/l, 95% CI −353.73 to −215.59, I2 = 0%), and a greater increase in six‐minute walk test performance (MD 70.67 m, 95% CI 22.92 to 118.42; I2 = 84%). Nine studies reported mild adverse events, such as gastrointestinal reactions, and no serious adverse events were reported. Conclusion. Currently, available evidence indicates that SMI, as an adjuvant for basic Western medicine treatment, can improve the cardiac function of patients with CHF with good safety outcomes. Because of the high risk of bias among the included RCTs and the large heterogeneity of partial outcomes, the findings of this study must be verified by high‐quality studies with large sample sizes.

18 January 2024 in BMC Public Health
Verified
Journal Article
Open access
PDF file
XCXu Chen
Xu Chen
JTJiao Tong
Jiao Tong
WZWeijing Zhang
Weijing Zhang
XWXin Wang
Xin Wang
SMShan Ma
Shan Ma
YLYan Liu
Yan Liu
Background: Parents of children with autism spectrum disorder (ASD) are at a higher risk of depression than parents of typically developing children and those of children with other developmental disorders. Depression affects the well-being and quality of life of parents of children with ASD and has serious consequences for the long-term health outcomes of children with ASD. Therefore, this study explored the current status of depressive symptoms in parents of children with ASD in eastern China and further analyzed multiple aspects of the predictors of depressive symptoms. Methods: A multicenter cross-sectional survey was conducted among parents of children with ASD in the rehabilitation department of a large specialized hospital and 10 rehabilitation centers for children with special needs in Lianyungang, Jiangsu Province, Eastern China. A structured questionnaire that focused on child-related factors, parent-related factors, depressive symptoms, courtesy stigma, and social support was used to obtain data. Binary logistic regression was used to identify the independent predictors of depressive symptoms in parents of children with ASD. Results: A total of 409 parents of children with ASD were recruited, of whom 18.8% had depressive symptoms. Parents of children with ASD who raised a child who spoke few to no words (odds ratio [OR]: 2.747, 95% confidence interval [CI]: 1.026–7.357), claimed a high economic burden (OR: 3.215, 95% CI: 1.234–8.379), reported no change or increased severity of ASD in their children (OR: 2.518, 95% CI: 1.108–5.720), and those with a higher courtesy stigma score (OR: 1.189, 95% CI: 1.093–1.294) were more likely to have depressive symptoms. Conversely, parents of children with ASD who were employed (OR: 0.427, 95% CI: 0.201–0.907), satisfied with their current marital status (OR: 0.429, 95% CI: 0.221–0.834), and those with a higher social support score (OR: 0.973, 95% CI: 0.950–0.996) were less likely to have depressive symptoms. Conclusions: Depressive symptoms are common in parents of children with ASD in eastern China. Therefore, screening and intervention for depressive symptoms in parents of children with ASD is necessary, especially for those with high-risk factors.

1 January 2020 in Evidence-Based Complementary and Alternative Medicine
Verified
Journal Article
Open access
PDF file
HNHeyun Nie
Heyun Nie
SLShuqing Li
Shuqing Li
MLMeilu Liu
Meilu Liu
WZWeifeng Zhu
Weifeng Zhu
XZXu Zhou
Xu Zhou
MYMei Dong Yan
Mei Dong Yan
Background. Yiqi Fumai injection (YQFM) is a traditional Chinese medicine widely used for cardiovascular diseases in China. This systematic review aimed to evaluate whether YQFM could be an effective and safe complementary therapy for chronic heart failure (CHF). Methods. Eight electronic literature databases were searched up to March 31, 2020. Randomized controlled trials (RCTs) comparing YQFM + conventional treatment with conventional treatment alone for CHF were included. The primary outcome was response to treatment, which was graded by improvements in heart function based on the New York Heart Association (NYHA) criteria, while the secondary outcomes included the left ventricular ejection fraction (LVEF), cardiac output, left ventricular end‐systolic diameter (LVESD), amino‐terminal pro‐brain natriuretic peptide (NT‐proBNP), 6‐minute walk test performance (6MWT), quality of life (QoL) as assessed by the Minnesota Living with Heart Failure questionnaire, and adverse reactions. Data from individual RCTs were pooled by a random‐effects meta‐analysis with effect measures of proportional odds ratios (pORs) and 95% confidence intervals (95% CIs) for the ordinal outcomes and the mean difference (MD) and 95% CI for the continuous outcomes. Results. In total, 33 RCTs involving 3070 patients with an overall moderate‐to‐high risk of bias were selected. The meta‐analysis showed that compared with conventional treatment alone, YQFM plus conventional treatment had a significantly higher likelihood of improving the response to treatment (pOR 1.88, 95% CI 1.47 to 2.42, I2 = 0%). YQFM also significantly improved the LVEF (MD 5.53%, 95% CI 4.73 to 6.33, I2 = 82%), cardiac output (MD 0.32 L/min, 95% CI 0.19 to 0.45, I2 = 47%), and LVESD (MD −3.73 mm, 95% CI −5.51 to −1.95, I2 = 22%), reduced the NT‐proBNP levels (MD −341.83 pg/mL, 95% CI −417.89 to −265.77, I2 = 88%), and improved the 6MWT (MD 61.86 m, 95% CI 45.05 to 78.67, I2 = 64%) and QoL (MD −9.82, 95% CI −14.17 to −5.46, I2 = 81%). No serious adverse events related to YQFM were reported. Conclusion. Although limited by a moderate‐to‐high risk of bias, the current evidence suggests that YQFM as a complementary treatment significantly improves heart function and related indicators in patients with CHF. The clinical use of YQFM needs careful safety monitoring. Well‐designed studies are still required to further evaluate the efficacy and safety of YQFM for CHF.

19 September 2022 in BMC Ophthalmology
Verified
Journal Article
Open access
PDF file
JLJian Lin
Jian Lin
DADexiang An
Dexiang An
YLYun Lu
Yun Lu
MYMei Dong Yan
Mei Dong Yan
Background: To assess the correlation between ocular residual astigmatism and anterior corneal astigmatism in children with low and moderate myopia. Methods: Refractive astigmatism was determined by subjective manifest refraction. Anterior corneal astigmatism was determined by IOL Master. Thibos vector analysis was used to calculate ocular residual astigmatism. Correlation analysis was used to assess the relationship between the amounts of ocular residual astigmatism and anterior corneal astigmatism. The relationship between the vectors of ocular residual astigmatism and anterior corneal astigmatism was evaluated by a physical method. Results: The study analysed 241 right eyes of 241 children aged 8 to 18 years old. In this study, the median magnitude of ocular residual astigmatism was 1.02 D, with an interquartile range was of 0.58 D. Against-the-rule ocular residual astigmatism was seen in 232 eyes (96.3%). There was a significant and moderate correlation between ocular residual astigmatism and anterior corneal astigmatism (r = 0.50, P < 0.001). Ocular residual astigmatism compensated for anterior corneal astigmatism in 240 eyes (99.6%). The mean compensation value was 1.00 ± 0.41 D (range 0.02 D to 2.34 D). Based on this effect, 37 eyes had a different axial classification of anterior corneal astigmatism and refractive astigmatism. In contrast, one eye (0.4%) had oblique ocular residual astigmatism and the ocular residual astigmatism superimposed with-the-rule anterior corneal astigmatism. Conclusions: The magnitude of ocular residual astigmatism was relatively large in myopic children and predominantly compensated for anterior corneal astigmatism. Ocular residual astigmatism should be assessed in patients before fitting them with orthokeratology lenses.

17 November 2023 in Frontiers in Psychiatry
Verified
Journal Article
Open access
XCXu Chen
Xu Chen
JTJiao Tong
Jiao Tong
BJBochen Jiang
Bochen Jiang
SMShan Ma
Shan Ma
XWXin Wang
Xin Wang
LWLei-lei Wang
Lei-lei Wang
Introduction: The experience and perception of stigma is a common problem among primary caregivers of children with autism spectrum disorder (ASD), and has a profound adverse impact on primary caregivers and children with ASD; however, few studies have explored courtesy stigma among primary caregivers of children with ASD in the Chinese context. The aim of this study was to explore the status of courtesy stigma among primary caregivers of children with ASD in Lianyungang, Jiangsu Province, Eastern China, and to conduct in-depth analysis of its predictors from multiple perspectives.Methods: An institution-based multi-center cross-sectional survey was conducted in the rehabilitation department of a large specialized hospital and 10 rehabilitation centers for children with special needs in Lianyungang, Jiangsu Province, Eastern China, from October 2022 to February 2023. A structured questionnaire to assess child-related factors, primary caregiver-related factors, courtesy stigma, general self-efficacy, and social support, was used to collect data. Predictors of courtesy stigma among primary caregivers of children with ASD were identified by linear regression.Results: A total of 428 primary caregivers of children with ASD were recruited. The mean ± standard deviation (SD) score for courtesy stigma was 7.49 ± 4.13. Multiple linear regression analysis revealed that primary caregivers of children with ASD who were not too satisfied with their current marital status (β = 1.21, 95% CI: 0.34–2.08, p < 0.05) were more likely to have a high courtesy stigma; however, significantly lower courtesy stigma was observed in primary caregivers of children with ASD who were not picky eaters (β = −1.33, 95% CI: −2.08 – –0.58, p < 0.05), and who reported low level challenge in caring for children with ASD (β = −1.16, 95% CI: −2.20 – –0.12, p < 0.05), good general self-efficacy (β = −0.16, 95% CI: −0.25 – –0.06, p < 0.05), and good social support (β = −0.04, 95% CI: −0.08 – –0.01, p < 0.05).Conclusion: There is a high level of courtesy stigma among primary caregivers of children with ASD in eastern China, and it is affected by numerous factors. More resources should be directed to groups that are more likely to experience stigma.