1.Mannitol inhibits the proliferation of neural stem cell by a p38 mitogen-activated protein kinase-dependent signaling pathway
Hai-Zhen DUAN ; Xin ZHOU ; Quan HU ; Meng-Long LIU ; Shu-Hong WANG ; Ji ZHANG ; Xu-Heng JIANG ; Tian-Xi ZHANG ; An-Yong YU
Chinese Journal of Traumatology 2024;27(1):42-52
Purpose::Mannitol is one of the first-line drugs for reducing cerebral edema through increasing the extracellular osmotic pressure. However, long-term administration of mannitol in the treatment of cerebral edema triggers damage to neurons and astrocytes. Given that neural stem cell (NSC) is a subpopulation of main regenerative cells in the central nervous system after injury, the effect of mannitol on NSC is still elusive. The present study aims to elucidate the role of mannitol in NSC proliferation.Methods::C57 mice were derived from the animal house of Zunyi Medical University. A total of 15 pregnant mice were employed for the purpose of isolating NSCs in this investigation. Initially, mouse primary NSCs were isolated from the embryonic cortex of mice and subsequently identified through immunofluorescence staining. In order to investigate the impact of mannitol on NSC proliferation, both cell counting kit-8 assays and neurospheres formation assays were conducted. The in vitro effects of mannitol were examined at various doses and time points. In order to elucidate the role of Aquaporin 4 (AQP4) in the suppressive effect of mannitol on NSC proliferation, various assays including reverse transcription polymerase chain reaction, western blotting, and immunocytochemistry were conducted on control and mannitol-treated groups. Additionally, the phosphorylated p38 (p-p38) was examined to explore the potential mechanism underlying the inhibitory effect of mannitol on NSC proliferation. Finally, to further confirm the involvement of the p38 mitogen-activated protein kinase-dependent (MAPK) signaling pathway in the observed inhibition of NSC proliferation by mannitol, SB203580 was employed. All data were analyzed using SPSS 20.0 software (SPSS, Inc., Chicago, IL). The statistical analysis among multiple comparisons was performed using one-way analysis of variance (ANOVA), followed by Turkey's post hoc test in case of the data following a normal distribution using a Shapiro-Wilk normality test. Comparisons between 2 groups were determined using Student's t-test, if the data exhibited a normal distribution using a Shapiro-Wilk normality test. Meanwhile, data were shown as median and interquartile range and analyzed using the Mann-Whitney U test, if the data failed the normality test. A p < 0.05 was considered as significant difference. Results::Primary NSC were isolated from the mice, and the characteristics were identified using immunostaining analysis. Thereafter, the results indicated that mannitol held the capability of inhibiting NSC proliferation in a dose-dependent and time-dependent manner using cell counting kit-8, neurospheres formation, and immunostaining of Nestin and Ki67 assays. During the process of mannitol suppressing NSC proliferation, the expression of AQP4 mRNA and protein was downregulated, while the gene expression of p-p38 was elevated by reverse transcription polymerase chain reaction, immunostaining, and western blotting assays. Subsequently, the administration of SB203580, one of the p38 MAPK signaling pathway inhibitors, partially abrogated this inhibitory effect resulting from mannitol, supporting the fact that the p38 MAPK signaling pathway participated in curbing NSC proliferation induced by mannitol.Conclusions::Mannitol inhibits NSC proliferation through downregulating AQP4, while upregulating the expression of p-p38 MAPK.
2.Chinese expert consensus on the diagnosis and treatment of traumatic supraorbital fissure syndrome (version 2024)
Junyu WANG ; Hai JIN ; Danfeng ZHANG ; Rutong YU ; Mingkun YU ; Yijie MA ; Yue MA ; Ning WANG ; Chunhong WANG ; Chunhui WANG ; Qing WANG ; Xinyu WANG ; Xinjun WANG ; Hengli TIAN ; Xinhua TIAN ; Yijun BAO ; Hua FENG ; Wa DA ; Liquan LYU ; Haijun REN ; Jinfang LIU ; Guodong LIU ; Chunhui LIU ; Junwen GUAN ; Rongcai JIANG ; Yiming LI ; Lihong LI ; Zhenxing LI ; Jinglian LI ; Jun YANG ; Chaohua YANG ; Xiao BU ; Xuehai WU ; Li BIE ; Binghui QIU ; Yongming ZHANG ; Qingjiu ZHANG ; Bo ZHANG ; Xiangtong ZHANG ; Rongbin CHEN ; Chao LIN ; Hu JIN ; Weiming ZHENG ; Mingliang ZHAO ; Liang ZHAO ; Rong HU ; Jixin DUAN ; Jiemin YAO ; Hechun XIA ; Ye GU ; Tao QIAN ; Suokai QIAN ; Tao XU ; Guoyi GAO ; Xiaoping TANG ; Qibing HUANG ; Rong FU ; Jun KANG ; Guobiao LIANG ; Kaiwei HAN ; Zhenmin HAN ; Shuo HAN ; Jun PU ; Lijun HENG ; Junji WEI ; Lijun HOU
Chinese Journal of Trauma 2024;40(5):385-396
Traumatic supraorbital fissure syndrome (TSOFS) is a symptom complex caused by nerve entrapment in the supraorbital fissure after skull base trauma. If the compressed cranial nerve in the supraorbital fissure is not decompressed surgically, ptosis, diplopia and eye movement disorder may exist for a long time and seriously affect the patients′ quality of life. Since its overall incidence is not high, it is not familiarized with the majority of neurosurgeons and some TSOFS may be complicated with skull base vascular injury. If the supraorbital fissure surgery is performed without treatment of vascular injury, it may cause massive hemorrhage, and disability and even life-threatening in severe cases. At present, there is no consensus or guideline on the diagnosis and treatment of TSOFS that can be referred to both domestically and internationally. To improve the understanding of TSOFS among clinical physicians and establish standardized diagnosis and treatment plans, the Skull Base Trauma Group of the Neurorepair Professional Committee of the Chinese Medical Doctor Association, Neurotrauma Group of the Neurosurgery Branch of the Chinese Medical Association, Neurotrauma Group of the Traumatology Branch of the Chinese Medical Association, and Editorial Committee of Chinese Journal of Trauma organized relevant experts to formulate Chinese expert consensus on the diagnosis and treatment of traumatic supraorbital fissure syndrome ( version 2024) based on evidence of evidence-based medicine and clinical experience of diagnosis and treatment. This consensus puts forward 12 recommendations on the diagnosis, classification, treatment, efficacy evaluation and follow-up of TSOFS, aiming to provide references for neurosurgeons from hospitals of all levels to standardize the diagnosis and treatment of TSOFS.
3.Relationship Between Mindfulness and Affiliate Stigma in Parents of Children with Autism Spectrum Disorder in China: The Mediating Role of Coping Styles
Ya-Nan WANG ; Qi-Heng LIN ; Dan MENG ; Jing WANG ; Hai-Ping XU ; Wan-Hong WEI ; Jin-Yan ZHANG
Asian Nursing Research 2024;18(2):89-96
Purpose:
This study aims to investigate the current status of affiliate stigma among parents of autistic children, analyze the influencing factors, explore the relationship among mindfulness, coping styles, and affiliate stigma, and verify the mediating role of coping styles between mindfulness and affiliate stigma in parents of children with autism in China.MethodBetween February and April 2023, the Child Development Behaviour Centre of a public hospital in China recruited 345 parents of children with autism. These parents completed the general information questionnaire, the Mindful Attention Awareness Scale, the Affiliate Stigma Scale, and the Simple Coping Style Questionnaire. We then adapted the Hayes Process Macro and Bootstrap methods to examine the mediating effects of coping styles between mindfulness and affiliate stigma.
Results:
(1) The total affiliate stigma score of parents of children with autism was 48.53 (standard deviation:: 10.74). Parents' age, monthly family income, duration of care, mindfulness, and coping styles were the influencing factors of parental affiliate stigma. (2) Mindfulness was positively correlated with positive coping style (r = 0.33, p < .01) and negatively correlated with negative coping style, affiliate stigma (r = −0.38, −0.39, p < .01), whereas affiliate stigma was negatively correlated with positive coping style (r = −0.34, p < .01) and positively correlated with negative coping style (r = 0.41, p < .01). (3) Positive coping style and negative coping style play a parallel mediating role between mindfulness and affiliate stigma of parents of autistic children.
Conclusions
Parents of children with autism experience significant levels of affiliate stigma. Mindfulness has a direct impact on associated stigma in parents of children with autism and also indirectly predicts associated stigma through the intermediary influence of positive and negative coping styles. Healthcare professionals could perform mindfulness interventions from an optimistic psychology viewpoint to boost parents' mindfulness and coping abilities, thereby accomplishing the objective of mitigating affiliate stigma.
4.Study on the application of model transfer technology in the extraction process of Xiao'er Xiaoji Zhike oral liquid
Xiu-hua XU ; Lei NIE ; Xiao-bo MA ; Xiao-qi ZHUANG ; Jin ZHANG ; Hai-ling DONG ; Wen-yan LIANG ; Hao-chen DU ; Xiao-mei YUAN ; Yong-xia GUAN ; Lian LI ; Hui ZHANG ; Xue-ping GUO ; Heng-chang ZANG
Acta Pharmaceutica Sinica 2023;58(10):2900-2908
The modernization and development of traditional Chinese medicine has led to higher standards for the quality of traditional Chinese medicine products. The extraction process is a crucial component of traditional Chinese medicine production, and it directly impacts the final quality of the product. However, the currently relied upon methods for quality assurance of the extraction process, such as simple wet chemical analysis, have several limitations, including time consumption and labor intensity, and do not offer precise control of the extraction process. As a result, there is significant value in incorporating near-infrared spectroscopy (NIRS) in the production process of traditional Chinese medicine to improve the quality control of the final products. In this study, we focused on the extraction process of Xiao'er Xiaoji Zhike oral liquid (XXZOL), using near-infrared spectra collected by both a Fourier transform near-infrared spectrometer and a portable near-infrared spectrometer. We used the concentration of synephrine, a quality control index component specified by the pharmacopoeia, to achieve rapid and accurate detection in the extraction process. Moreover, we developed a model transfer method to facilitate the transfer of models between the two types of near-infrared spectrometers (analytical grade and portable), thus resolving the low resolution, poor performance, and insufficient prediction accuracy issues of portable instruments. Our findings enable the rapid screening and quality analysis of XXZOL onsite, which is significant for quality monitoring during the traditional Chinese medicine production process.
5.Effects of astragaloside Ⅳ on inflammatory response and percentage of peripheral blood Th17 cells in mice with ulcerative colitis.
Sheng-Yan XU ; Xiang-Dang HU ; Zong-Liang YANG ; An LIU ; Yong-Heng HE ; Hai-Yan LU
China Journal of Chinese Materia Medica 2022;47(2):469-475
This study aimed to investigate the anti-inflammatory effect of astragaloside Ⅳ in mice with ulcerative colitis(UC) and its effect on the percentage of peripheral blood T helper(Th17) cells. Following the establishment of UC mouse model with 2% sodium dextran sulfate(DSS), mice in the positive control group and low-and high-dose astragaloside Ⅳ groups were treated with corresponding drugs by gavage. Disease activity index(DAI) was calculated, and serum interleukin-17(IL-17), tumor necrosis factor-α(TNF-α), and transforming growth factor-β(TGF-β) levels were assayed by ELISA. The pathological changes in colon tissue were observed by HE staining, and Th17/regulatory T cells(Treg) ratio in the peripheral blood was determined by flow cytometry. Western blot was conducted for detecting the relative protein expression levels of forkhead box protein P3(Foxp3) and retinoic acid-related orphan nuclear receptor γT(ROR-γt). The findings demonstrated that in normal mice, the colonic structure was intact. The goblet cells were not reduced and the glands were neatly arranged, with no mucosal erosion, bleeding, or positive cell infiltration. In the model group, the colonic mucosal structure was seriously damaged, manifested as disordered arrangement or missing of glands, vascular dilatation, congestion, and massive inflammatory cell infiltration. The pathological injury of colon tissue was alleviated to varying degrees in drug treatment groups. Compared with the normal group, the model group exhibited elevated percentage of Th17 cells, increased IL-17 and TNF-α content, up-regulated relative ROR-γt protein expression, lowered TGF-β, reduced percentage of Treg cells, and down-regulated relative Foxp3 protein expression. The comparison with the model group showed that DAI score, pathological score, percentage of Th17 cells, IL-17 and TNF-α content, and relative ROR-γt protein expression in the positive control group, low-dose astragaloside Ⅳ group, and high-dose astragaloside Ⅳ group were decreased, while TGF-β content, percentage of Treg cells, and relative Foxp3 protein expression were increased. The DAI score, pathological score, percentage of Th17 cells, IL-17 and TNF-α content, and relative ROR-γt protein expression in the low-dose astragaloside Ⅳ group were higher than those in the positive control group, whereas the content of TGF-β, percentage of Treg cells, and relative Foxp3 protein expression were lower. DAI score, pathological score, percentage of Th17 cells, IL-17 and TNF-α content, relative ROR-γt protein expression in the high-dose astragaloside Ⅳ group declined in contrast to those in the low-dose astragaloside Ⅳ group, while the TGF-β content, percentage of Treg cells, and relative Foxp3 protein expression rose. There was no significant difference between the positive control group and the high-dose astragaloside Ⅳ group. Astragaloside Ⅳ is able to inhibit inflammatory response and diminish the percentage of Th17 cells in mice with UC.
Animals
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Colitis, Ulcerative/metabolism*
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Mice
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Saponins/pharmacology*
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T-Lymphocytes, Regulatory
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Th17 Cells
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Triterpenes/pharmacology*
6.Causes analysis of blood donor deferral in 20 domestic blood centers
Dongyan ZHAO ; Bing JU ; Hai QI ; Heng ZHANG ; Lixian MA ; Rong GUO ; Ling HOU ; Lin BAI ; Yang ZHANG ; Tao QI ; Yang CHEN ; Wenjie HU ; Xiaojun XU ; Rui CHEN ; Lin WANG ; Tao LI ; Wei LUO ; Ning CHENG ; Honghua LIU ; Junying LI ; Yan QIU
Chinese Journal of Blood Transfusion 2022;35(4):360-364
【Objective】 To investigate the main causes of blood donor deferral in domestic blood center. 【Methods】 The causes of donor deferral were classified into 12 categories as previous medical history, drug use, alcohol consumption, menstrual period, underweight, abnormal blood pressure, abnormal body temperature, abnormal hemoglobin (Hb), lipemic blood, positive hepatitis B surface antigen (HBsAg), elevated alanine aminotransferase (ALT) and others according to the comparison indicators of Asia-Pacific Blood Network (APBN) and the national standard Blood Donor Health Examination Requirements. The relevant data of the top 3 causes of donor deferral, voluntarily reported by the members of Practice Comparison Working Group of China’s Mainland Blood Collection and Supply Institutions from 2014 to 2019, were collected and a histogram was generated. 【Results】 The median donor deferral rate of 20 domestic blood centers from 2014 to 2019 was 12.14%, with the lowest at 0.18% and highest at 32.32%, respectively. The top three causes for donor deferral were elevated ALT, abnormal Hb and abnormal blood pressure in year 2014, 2015, 2018 and 2019; elevated ALT, lipemic blood and abnormal blood pressure in 2016; elevated ALT, abnormal Hb, and lipemic blood in 2017. 【Conclusion】 The main causes of donor deferral were elevated ALT, abnormal Hb, abnormal blood pressure and lipemic blood.
7.Practice and exploration of compact county medical consortium based on medical group
Xiaoqiang ZHU ; Hua ZHANG ; Heng GAO ; Hai GONG ; Xinglong XU
Chinese Journal of Hospital Administration 2021;37(4):275-279
The construction of compact county medical consortium is an effective way to integrate county medical resources, improve county diagnosis and treatment capabilities, and establish and improve the hierarchical diagnosis and treatment system. It is the guidance of national policy and the demand of social practice. Based on the reality of Jiangyin′s developed local economy, sufficient overall high-quality medical resources and high health demand of residents, Jiangyin People′s Hospital Medical Group explored the construction practice of compact county medical consortium according to local conditions. The group focused on implementing the functional positioning of medical institutions, improving the primary service ability, and straightening out the two-way referral process. Through the four major measures of establishing mechanism, strengthening the primary level, optimizing the process, and focusing on convergence, the group improved the organization structure and operation mechanism, continuously improved the management level and service connotation of the medical consortium. The goal of establishing an overall management mode, improving primary service capabilities, and forming an up-down cooperation mechanism had been initially realized.
8. Identification and evaluation of occupational hazards during construction of a large construction project
Qin-hai HUANG ; Mao-sheng YAN ; Jia-heng HE ; Zuo-kan LIN ; Guo-yong XU ; Dan-ying ZHANG
China Occupational Medicine 2021;48(02):218-222
OBJECTIVE: To analyze the occupational hazard factors and their critical control points in the process of construction of a large-scale construction project.METHODS: The engineering analysis, worksite survey occupational health and occupational hazard factor testing were conducted in a large-scale construction project, and the results were analyzed. RESULTS: During the process of construction of this large-scale construction project, there were many occupational hazard factors such as silicon dust, welding smoke, wood and other dusts, inorganic compounds of manganese, carbon monoxide, carbon dioxide, nitric oxide, ozone, noise, high temperature, hand-transmitted vibration and ultraviolet irradiation, among them, silicon dust and noise were the most common ones. The over standard rates of exposure concentration of short term of total dust and respirable dust in the workplace were 68.2%(15/22) and 40.9%(9/22), and the over standard rates of exposure concentration of time weighted average were 54.5%(12/22) and 13.6%(3/22), respectively. The over standard rates of the noise intensity of area sampling and personal sampling in workplace were 69.2%(45/65) and 61.0%(25/41) respectively. The four hours energy equivalent frequency-weighted acceleration to vibration of three hand-transmitted vibration positions has been detected, and the result has surpassed the occupational exposure limit.The results of other occupational hazard factors such as high temperature, ultraviolet radiation, wood dust, welding smoke, other dust, manganese inorganic compounds, carbon monoxide, carbon dioxide, nitric oxide, nitrogen dioxide, hydrogen sulfide, hydrogen cyanide and ozone all met the occupational exposure limits. CONCLUSION: There are various occupational hazard factors in the process of construction of this large-scale construction project, among them, noise, dust and hand-transmitted vibration are the most prominent hazards.These hazards are the critical control points of this type of construction projects.
9.Risk characteristics of hypertension in high-risk population: an analysis based on the surveillance data of chronic diseases in Shanghai
Hai-feng XU ; Hai-ying TANG ; Yuan YUAN ; Fei WU ; Yan LU ; Yu-heng WANG
Shanghai Journal of Preventive Medicine 2021;33(7):553-558
Objective:To understand the epidemiological characteristics of high-risk population of hypertension in Shanghai, and to provide references for health management and targeted lifestyle intervention of the high-risk population in community. Methods:The data from the 2013 Shanghai Non-communicable and Chronic Diseases Surveillance were used. The subjects who met the criteria of high-risk population of hypertension were included, and 11 753 subjects were finally identified, to analyze the distribution and level of risk characteristics. Result:Among six high-risk characteristics of hypertension, the detection rate of high salt in diet was the highest (55.3%), followed by overweight/obesity (44.0%), family history of hypertension (41.6%), and blood pressure level of (130-139)/(85-89) mmHg (31.7%). The detection rate of excessive drinking was the lowest (5.0%). The percentage of population with one or two high-risk characteristics was higher than that with three or more high-risk characteristics (76.9%
10.Preparation, water absorption and solubility of a new Eucommia ulmoides gum composite soft denture liner
Heng LUO ; Hai GAO ; Xuefei XU ; Yunzhi FENG
Chinese Journal of Tissue Engineering Research 2019;23(10):1501-1506
BACKGROUND: The most common soft liners currently used in the clinic are silicone rubbers and acrylics, but both of them have deficiencies. Therefore, the development of soft lining materials with stability, excellent performance, and antibacterial properties is of important clinical significance. OBJECTIVE: To prepare a soft lining material with high elasticity on the basis of excellent characteristics of Eucommia ulmoides gum, and to preliminarily explore its water absorption and solubility. METHODS: The basic formula was made based on the existing formula of elastic Eucommia ulmoides gum and medical rubber, in combination with the specific requirements of denture lining materials. The ratio of Eucommia ulmoides to butadiene rubber was set to be 10:90, 30:70, 50:50, 70:30 and 90:10, and the new Eucommia ulmoides gum composite soft denture liners were then prepared. Acrylate self-curing soft lining material and Silagum silicone rubber denture soft lining material served as controls. Afterwards, the samples were put into distilled water or artificial saliva for 7 and 30 days, and the value of water absorption and water solubility were calculated. RESULTS AND CONCLUSION: (1) In the artificial saliva for 7 and 30 days, the water absorption rate and solubility of samples in different ratio groups were close to those in the Silagum group, but extremely lower than those in the acrylate group. (2) In the distilled water for 7 and 30 days, the water absorption rate and solubility of samples in different ratio groups were close to those in the Silagum group, but extremely lower than those in the acrylate group. (3) The water absorption rate and solubility of the acrylate group were significantly higher than those in the other groups at 7 and 30 days of immersion in the artificial saliva or distilled water (P < 0.05). (4) After 7 and 30 days of immersion, the water absorption rate of the same sample in the artificial saliva was significantly lower than that in the distilled water. Wile at 7 days of immersion, the samples in the 30:70 and 50:50 groups showed a lower solubility in the artificial saliva than in the distilled water (P < 0.05), and at 30 days of immersion, the samples in the 30:70, 50:50, 70:30 and 90:10 groups showed a lower solubility in the artificial saliva than in the distilled water (P < 0.05). (5) In the artificial saliva, there was no significant difference in the solubility in the 50:50 and 70:30 groups at 7 and 30 days of immersion (P> 0.05), while the solubility in the other groups exhibited significant differences at different observational times (P < 0.05). In the distilled water, there was no significant difference in the solubility in the 10:90 and 30:70 groups at 7 and 30 days of immersion (P> 0.05), while the solubility in the other groups exhibited significant differences at different observational times (P < 0.05). To conclude, the water absorption of Eucommia ulmoides gum composite soft denture liner is close to Silagum, but significantly less than that of acrylate soft lining materials, and the solubility remains at a very low level.

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