1.High-quality acceleration of the Chinese national schistosomiasis elimination programme to advance the building of Healthy China
Jing XU ; Qiang WANG ; Kun YANG ; Liyong WEN ; Tianping WANG ; Dandan LIN ; Jianbing LIU ; Jie ZHOU ; Yang LIU ; Yi DONG ; Chunli CAO ; Shizhu LI ; Xiaonong ZHOU
Chinese Journal of Schistosomiasis Control 2024;36(1):1-6
The goal of achieving elimination of schistosomiasis across all endemic counties in China by 2030 was proposed in the Outline of the Healthy China 2030 Plan. On June 16, 2023, the Action Plan to Accelerate the Elimination of Schistosomiasis in China (2023—2030) was jointly issued by National Disease Control and Prevention Administration and other 10 ministries, which deployed the targets and key tasks of the national schistosomiasis elimination programme in China. This article describes the progress of the national schistosomiasis control programme, analyzes the opportunities to eliminate schistosomiasis, and proposes targeted recommendations to tackle the challenges of schistosomiasis elimination, so as to accelerate the process towards schistosomiasis elimination and facilitate the building of a healthy China.
2.Concentrations and sociodemographic determinants of per- and polyfluoroalkyl substances in women pregnant using assisted reproduction technology in comparison with women pregnant naturally
Dandan MAO ; Jiuru ZHAO ; Hong LI ; Zixia WANG ; Xiaomeng CHENG ; Yan ZHANG ; Zhiwei LIU ; Yu GAO ; Ying TIAN
Journal of Environmental and Occupational Medicine 2024;41(6):632-639
Background Per- and polyfuoroalkyl substances (PFAS) are categorized as persistent organic pollutants and commonly detected in humans, and their toxicity has attracted widespread attention. However, few studies have reported comparison of PFAS levels and potential factors between women pregnant using assisted reproduction technology (ART) and women pregnant naturally. Objective To analyze and compare serum concentrations and sociodemographic determinants of PFAS in pregnant women conceiving through ART and conceiving naturally from Shanghai. Methods Based on the China National Birth Cohort (CNBC) in Shanghai from 2017 to 2019, 333 pregnant women conceiving through ART and 689 pregnant women conceiving naturally were recruited during the same period as study subjects. The concentrations of 32 PFAS were measured in early-pregnancy serum of all pregnant women, and four PFAS with the highest co-exposure levels in both groups were included in the subsequent analysis. Multiple linear regression models were performed to evaluate the associations of sociodemographic factors with serum PFAS concentrations in the two groups respectively. Beta coefficients and 95% confidence intervals (CI) were exponentiated to calculate the ratio of the geometric mean (GM) of PFAS concentrations after each unit change in the independent variable. Results Perfluorooctanoic acid (PFOA), perfluorooctanesulfonic acid (PFOS), 6∶2 chlorinated polyfluoroethersulfonic acid (6∶2 Cl-PFESA), and perfluorohexanesulfonic acid (PFHxS) were four major PFAS in serum of pregnant women conceiving through ART and conceiving naturally, and the concentrations of PFOA, PFOS, and 6∶2 Cl-PFESA were higher in pregnant women conceiving through ART than in pregnant women conceiving naturally (P <0.05). The results of multiple linear regression analysis showed that age at pregnancy and household income were associated with serum PFAS levels in both groups. The serum concentrations of PFOS were higher in pregnant women aged ≥35 years old who conceiving through ART (GM ratio=1.26, 95%CI: 1.04, 1.54) and conceiving naturally (GM ratio=1.24, 95%CI: 1.08, 1.42) than pregnant women aged <30 years old respectively. Pregnant women conceiving through ART and conceiving naturally whose household annual income >300000 CNY had lower serum concentrations of PFOA [GM ratio (95%CI): 0.82 (0.72, 0.95) and 0.89 (0.81, 0.97), respectively] and PFHxS [GM ratio (95%CI): 0.66 (0.51, 0.86) and 0.77 (0.66, 0.90), respectively] than those women whose household annual income <200000 CNY. Additionally, pregnant women conceiving naturally with a graduate education or above had lower serum 6∶2 Cl-PFESA concentrations than women with an education below college (GM ratio: 0.81), and multiparous pregnant women conceiving naturally had higher serum concentrations of PFOS, 6∶2 Cl-PFESA, and PFHxS than primiparous pregnant women (GM ratio: 1.14, 1.25, and 1.27 respectively). Conclusion Although differences in serum PFAS levels are found between pregnant women conceiving through ART and women conceiving naturally in this study, maternal age and household income are common determinants of PFAS exposure levels in both populations. We find no special sociodemographic factors to affect PFAS concentrations of pregnant women conceiving through ART compared to pregnant women conceiving naturally. Further research is required to explore other potential factors.
3.Platelet-rich plasma combined with gypenosides for the treatment of psoriasis-like inflammation in mice
Dandan LI ; Bing WANG ; Yu GE ; Hong CHENG ; Mengxue LI ; Zhicheng WANG ; Rong XIA
Chinese Journal of Blood Transfusion 2024;37(12):1350-1357
[Abstract] [Objective] To investigate the therapeutic effect of platelet-rich plasma (PRP) subcutaneous injection combined with gypenosides (GPs) oral administration on BALB/c mouse psoriatic inflammation and explore its mechanism of action. [Methods] The 6-8 week-old female SPF BALB/c mice were randomly divided into five groups: control, model, PRP, GPs and PRP+GPs group, with 5 mice in each group. Imiquimod (IMQ) was used to induce psoriasis-like skin inflammation on the back of mice except the control group. The onset and severity of psoriasis-like inflammation in different treatment groups were evaluated by observing skin lesions, skin thickness and measuring PASI score. HE staining and Ki67 staining were used to evaluate the pathological changes and proliferation of keratinocytes in psoriasis-like skin lesions. Blood cell count, enzyme-linked immunosorbent assay and Western blot were used to explore the changes in circulating white blood cell count, cytokines IL-17A and TNF-α, and related signaling pathway proteins p-STAT3 and p-P38. [Results] At the end of the experiment (on day 6), scale scores of model, PRP, GPs and PRP+GPs group were 3.6±0.49, 1.8±0.75, 1.8±0.75, 1.2±0.40, respectively; the ratios of skin thickness (μm) were 0.86±0.18, 0.59±0.10, 0.56±0.07 and 0.42±0.09; PASI scores were 10.6±1.02, 4.0±0.63, 4.0±1.10 and 3.2±0.75. Compared with the model group, the number of scales (P<0.01), patch thickness (P<0.01) and PASI score decreased (P<0.0001) showed a certain therapeutic effect, and PRP+GPs group had the best effect. Pathological examination showed that both the epidermal layer thickness (P<0.01) and epidermal cell proliferation (P<0.05) decreased in all treatment groups; IL-17A expression levels were 9.02±2.54, 16.56±3.49, 10.01±1.83, 11.12±2.48 and 10.50±2.16, and TNF-α expression levels were 223.36±70.34, 377.36±58.47, 265.42±45.14, 262.94±33.29 and 268.94±26.80 respectively. The expression of skin tissue IL-17A (P<0.05) and TNF-α (P<0.05) decreased, along with the decreased expression of related signaling pathway proteins p-STAT3 and p-P38. [Conclusion] PRP combined with GPs can reduce the expression of IL-17A and TNF-α through the STAT3 and P38 signaling pathways, thereby alleviating inflammation and inhibiting the overproliferation of keratinocytes, thus improving psoriasis-like skin inflammation in BALB/c mice.
4.Discussion on TCM Etiology and Pathogenesis of Cognitive Dysfunction from the of Perspective Microbiota-gut-brain Axis Based on"Spleen Can't Regulate Spirit"
Lanhui ZHENG ; Qi ZHANG ; Boyu ZHANG ; Dandan FENG ; Jiayao LUO ; Tong YANG ; Hua SUI ; Yan WANG ; Qingquan SUN ; Sheng LI ; Shuyuan LIU
Chinese Journal of Information on Traditional Chinese Medicine 2024;31(6):18-23
Cognitive dysfunction refers to dysfunction of individual perception,memory,understanding,learning,creation and other dysfunctions caused by abnormal brain function and structure.Based on the fact that the spleen can't regulate transportation and transformation,govern blood and send up essential substance,combined with the microbiota-gut-brain axis,this article discussed the etiology and pathogenesis of intestinal flora imbalance affecting cognitive dysfunction in TCM.It was proposed that the spleen in TCM and intestinal flora are connected in physiology and pathology:the spleen regulates spirit and governs cognition,when the spleen fails to function normally that it can't dominate transportation and transformation,govern blood and send up essential substance will cause that the brain spirit can not be nourished;intestinal flora is closely related to the spleen in TCM,and affects brain function through the nervous system,endocrine,immune and metabolic mechanisms.This article can provide explore new ideas for the clinical research and treatment of cognitive dysfunction of traditional Chinese and Western medicine.
5.Analysis of laboratory characteristics and evaluation of prognostic value of patients with NPM1 mutated acute myeloid leukemia
Ping WU ; Ting LI ; Huipeng SUN ; Lingjun WAN ; Chunyu ZHOU ; Dandan ZHANG ; Xiaofei ZHOU ; Heng ZHANG ; Mingyue CHEN ; Yunfang WANG ; Ningning WANG ; Wenjing LIU ; Tanlin XU ; Yiwei FU ; Lijun LIU ; Xiaoyu LIU ; Hongxing LIU ; Tong WANG ; Hui WANG
Chinese Journal of Laboratory Medicine 2023;46(5):483-492
Objective:To analyze the clinical and laboratory characteristics of acute myeloid leukemia (AML) patients with NPM1 mutation, and to explore the prognostic factors.Methods:A total of 77 AML patients with NPM1 gene mutation admitted to Hebei Yanda Ludaopei Hospital from May 1st 2012 to December 31st 2021 were enrolled in the study, including 34 male and 43 female patients. The median age was 40 (3, 68) years old. Patients were selected and divided into 4 groups according to the morphological FAB classification. There were 29 cases (37.7%) of M1 type, 13 cases (16.9%) of M2 type, 23 cases (29.9%) of M4 type, and 12 cases (15.5%) of M5 type. The clinical characteristics, bone marrow/peripheral blood cell morphology, immunophenotype, cytogenetics, molecular biology and overall survival of different groups were retrospectively analyzed, and the risk factors affecting the prognosis of AML were also explored. Cox multivariate regression was used to analyze the clinical influencing factors of survival and prognosis.Results:The white blood cell counts were highest in M4 and M5 patients and lowest in M2 patients, while no significant difference in the red blood cell, hemoglobin, and platelet counts( P>0.05). Morphologically, there were significant differences in the percentage of blasts and blasts with cup-like nuclei on bone marrow (BM) and peripheral blood (PB). The proportion of blasts in BM and PB was the highest in M1 and the lowest in M2 ( P<0.001). The positive rate of blasts with cup-like nuclei was the highest in M1 and the lowest in M5 of BM ( P<0.001), while the highest in M2 and the lowest in M5 of PB ( P=0.006). The scores of myeloperoxidase and chloroacetate esterase were all the highest in M1 and the lowest in M5 ( P<0.001, 0.001, respectively). In terms of molecular biology, the occurence rate of blasts combined with DNMT3A mutation was the highest in M4 and the lowest in M2 ( P=0.044), while those combined with FLT3-ITD mutation was the highest in M4 and the lowest in M5 ( P=0.002). In immunophenotype, there were significant differences in the expression positivities of seven antigens including HLA-DR, CD56, CD11c, CD15, CD14, CD96 and cMPO ( P<0.05). Multivariate COX regression analysis showed that no recurrence after treatment ( P<0.001), complete remission after treatment ( P=0.015) and transplantation ( P<0.001) were correlated with overall survival (OS). No recurrence after treatment ( P=0.033), transplantation ( P=0.027), no mutation of FLT3-ITD ( P=0.040), and hemoglobin concentration ( P=0.023) were associated with relapse-free survival (RFS). Survival analysis by Kaplan-Meier curve showed that there was no significant difference in survival time between the M1, M2, M4 and M5 groups in OS and RFS. Conclusion:There were significant differences in the white blood count, the percentage of blasts and blasts with cup-like nuclear morphology, cytochemical staining (MPO integration, CE integration and percentage of NAS-DCE), gene mutation (DNMT3A and FLT3-ITD) and immunophenotypes (HLA-DR, CD56, CD11c, CD15, CD14, CD96 and cMPO) between the four groups. The multivariate analysis revealed that no recurrence after treatment and transplantation were independent prognostic factors in NPM1 mut AML patients. On the other hand, FLT3-ITD mutation and hemoglobin concentration were associated with RFS and complete remission after treatment was associated with OS in the entire NPM1 mut cohort.
6.A novel biological sources consistency evaluation method reveals high level of biodiversity within wild natural medicine: A case study of Amynthas earthworms as "Guang Dilong".
Zhimei XING ; Han GAO ; Dan WANG ; Ye SHANG ; Tenukeguli TULIEBIEKE ; Jibao JIANG ; Chunxiao LI ; Hong WANG ; Zhenguo LI ; Lifu JIA ; Yongsheng WU ; Dandan WANG ; Wenzhi YANG ; Yanxu CHANG ; Xiaoying ZHANG ; Liuwei XU ; Chao JIANG ; Luqi HUANG ; Xiaoxuan TIAN
Acta Pharmaceutica Sinica B 2023;13(4):1755-1770
For wild natural medicine, unanticipated biodiversity as species or varieties with similar morphological characteristics and sympatric distribution may co-exist in a single batch of medical materials, which affects the efficacy and safety of clinical medication. DNA barcoding as an effective species identification tool is limited by its low sample throughput nature. In this study, combining DNA mini-barcode, DNA metabarcoding and species delimitation method, a novel biological sources consistency evaluation strategy was proposed, and high level of interspecific and intraspecific variations were observed and validated among 5376 Amynthas samples from 19 sampling points regarded as "Guang Dilong" and 25 batches of proprietary Chinese medicines. Besides Amynthas aspergillum as the authentic source, 8 other Molecular Operational Taxonomic Units (MOTUs) were elucidated. Significantly, even the subgroups within A. aspergillum revealed here differ significantly on chemical compositions and biological activity. Fortunately, this biodiversity could be controlled when the collection was limited to designated areas, as proved by 2796 "decoction pieces" samples. This batch biological identification method should be introduced as a novel concept regarding natural medicine quality control, and to offer guidelines for in-situ conservation and breeding bases construction of wild natural medicine.
7.Click chemistry extracellular vesicle/peptide/chemokine nanocarriers for treating central nervous system injuries.
Huitong RUAN ; Yongfang LI ; Cheng WANG ; Yixu JIANG ; Yulong HAN ; Yiwei LI ; Dandan ZHENG ; Jing YE ; Gang CHEN ; Guo-Yuan YANG ; Lianfu DENG ; Ming GUO ; Xingcai ZHANG ; Yaohui TANG ; Wenguo CUI
Acta Pharmaceutica Sinica B 2023;13(5):2202-2218
Central nervous system (CNS) injuries, including stroke, traumatic brain injury, and spinal cord injury, are essential causes of death and long-term disability and are difficult to cure, mainly due to the limited neuron regeneration and the glial scar formation. Herein, we apply extracellular vesicles (EVs) secreted by M2 microglia to improve the differentiation of neural stem cells (NSCs) at the injured site, and simultaneously modify them with the injured vascular targeting peptide (DA7R) and the stem cell recruiting factor (SDF-1) on their surface via copper-free click chemistry to recruit NSCs, inducing their neuronal differentiation, and serving as the nanocarriers at the injured site (Dual-EV). Results prove that the Dual-EV could target human umbilical vascular endothelial cells (HUVECs), recruit NSCs, and promote the neuronal differentiation of NSCs in vitro. Furthermore, 10 miRNAs are found to be upregulated in Dual-M2-EVs compared to Dual-M0-EVs via bioinformatic analysis, and further NSC differentiation experiment by flow cytometry reveals that among these miRNAs, miR30b-3p, miR-222-3p, miR-129-5p, and miR-155-5p may exert effect of inducing NSC to differentiate into neurons. In vivo experiments show that Dual-EV nanocarriers achieve improved accumulation in the ischemic area of stroke model mice, potentiate NSCs recruitment, and increase neurogenesis. This work provides new insights for the treatment of neuronal regeneration after CNS injuries as well as endogenous stem cells, and the click chemistry EV/peptide/chemokine and related nanocarriers for improving human health.
8.Sigirr deletion upregulates NF⁃ κB and is involved in the development of renal interstitial fibrosis in mice with chronic kidney disease
Ziwen Tong ; Deping Xu ; Zhe Wang ; Ping Yang ; Zhenzhen Tu ; Dandan Zang ; Haisheng Zhou
Acta Universitatis Medicinalis Anhui 2023;58(5):724-730
Objective:
To investigate the role and mechanism of Sigirr deletion in chronic kidney disease complicated with renal interstitial fibrosis (CKD⁃RIF) in mice.
Methods:
polymerase chain reaction (PCR) was used for identification of gene types of mice. Mice were continuously fed with the foods containing 0. 2% adenine for 12 weeks to establish the CKD⁃RIF models. Then , serum was collected to detect levels of creatinine and nitrogen when mice were killed. H&E staining was used to analyze the pathological changes of kidney tissues. Masson staining was used to observe the degree of renal fibrosis. Immunohistochemistry was used to detect the changes of the interest proteins , such as IL⁃1β , MyD88 , activated NF⁃κB , TGF⁃ β1 , E ⁃cadherin and Vimentin.
Results:
Serum creatinines and urea nitrogens of mice fed with high adenine (CKD⁃RIF groups) significantly increased , compared with those of the control groups. H&E and Masson staining results showed that there were more infiltrated inflammatory cells and more critical collagen fiber deposition in the renal tissues of the Sigirr - / - mice with CKD⁃RIF. Western blot and Immunohistochemical analysis showed that the expression of IL⁃1β and its downstream MyD88 increased , and the level of phosphorylated NF⁃κB (p⁃P65) significantly increased in the renal tissues of CKD⁃RIF mice compared with the controls. And upregulation of these proteins in renal tissues of Sigirr - / - mice with CKD⁃RIF was more obvious than that of the CKD⁃RIF Sigirr + / + mice. TGF⁃ β1 , as a key cytokine involved in renal interstitial fibrosis , significantly increased ,followed by the increase of vimentin , as well as the decrease of E ⁃cadherin . The results of vimentin and cadherin E detected by Western blot were consistent with those of immunohistochemistry , and α ⁃SMA also increased significantly.
Conclusion
Adenine diet successfully induces CKD⁃RIF mice models. Sigirr deletion is beneficial to activation of the IL⁃1β mediating NF⁃κB signal pathway ,which promotes TGF⁃ β1 expression in the renal interstitiums to induce renal interstitial fibrosis.
9.Juvenile hyaline fibromatosis: a case report and literatures review
XIA Liang ; WU Dandan ; CHEN Yang
Journal of Prevention and Treatment for Stomatological Diseases 2022;30(7):505-510
Objective:
To investigate the clinicopathological characteristics, imaging manifestations, genetic manifestations, diagnosis and treatment of juvenile hyaline fibromatosis.
Methods :
A case of juvenile hyaline fibromatosis was reported, and the patient's clinical manifestations, imaging examinations, histopathological examinations, genetic changes and treatment were summarized and analyzed.
Results :
Juvenile hyaloid fibromatosis is more common in infants and children. This patient had typical clinical and pathological manifestations, including posterior occipital masses, skin and subcutaneous nodules, gum hyperplasia, joint contractures, and joint osteolytic lesions. The histopathological lesions were characterized by the proliferation of spindle cells in the tissue accompanied by a large amount of amorphous transparent matrix. Genetic testing was performed to confirm an ANTXR2 gene mutation, consistent with the known genetic changes of juvenile hyaline fibromatosis. The 6-month follow-up of the patient showed that there was no obvious recurrence after resection of the gum and facial mass. In addition to surgery, the treatment of this disease requires multidisciplinary symptomatic treatment combined with rehabilitation and supportive treatment to achieve a better prognostic effect.
Conclusion
Juvenile hyaline fibromatosis is a rare nonneoplastic autosomal recessive genetic disease. Mutations in the ANTXR2 gene lead to disorders of collagen synthesis and metabolism in the tissues and further cause subcutaneous nodules, gingival hyperplasia, joint contractures and bone dissolution.
10.MiR-494-3p Upregulation Exacerbates Cerebral Ischemia Injury by Targeting Bhlhe40
Lingjiang SUN ; Dandan JI ; Feng ZHI ; Yu FANG ; Zigang ZHU ; Tong NI ; Qin ZHU ; Jie BAO
Yonsei Medical Journal 2022;63(4):389-398
Purpose:
Cerebral ischemia is related to insufficient blood supply and is characterized by abnormal reactive oxygen species (ROS) production and cell apoptosis. Previous studies have revealed a key role for basic helix-loop-helix family member e40 (Bhlhe40) in oxidative stress and cell apoptosis. This study aimed to investigate the roles of miR-494-3p in cerebral ischemia/reperfusion (I/R) injury.
Materials and Methods:
A mouse middle cerebral artery occlusion (MCAO/R) model was established to mimic cerebral ischemia in vivo. Brain infarct area was assessed using triphenyl tetrazolium chloride staining. Oxygen-glucose deprivation/reoxygenation (OGD/R) operation was adopted to mimic neuronal injury in vitro. Cell apoptosis was analyzed by flow cytometry. The relationship between miR-494-3p and Bhlhe40 was validated by luciferase reporter and RNA immunoprecipitation assays.
Results:
Bhlhe40 expression was downregulated both in MCAO/R animal models and OGD/R-induced SH-SY5Y cells. Bhlhe40 overexpression inhibited cell apoptosis and reduced ROS production in SH-SY5Y cells after OGD/R treatment. MiR-494-3p was verified to bind to Bhlhe40 and negatively regulate Bhlhe40 expression. Additionally, cell apoptosis and ROS production in OGD/ R-treated SH-SY5Y cells were accelerated by miR-494-3p overexpression. Rescue experiments suggested that Bhlhe40 could reverse the effects of miR-494-3p overexpression on ROS production and cell apoptosis.
Conclusion
MiR-494-3p exacerbates brain injury and neuronal injury by regulating Bhlhe40 after I/R.


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