1.IL-10 inhibits expression of inflammatory factors in Chlamydia-infected cells by up-regulating socs3
Chinese Journal of Immunology 2024;40(3):530-533
Objective:To investigate the role and mechanisms of SOCS3 protein in IL-10 inhibiting the expression of inflam-matory factors in Chlamydia-infected cells.Methods:The activation of STAT3 protein were examined in Chlamydia-infected cells by Western blot,and the activation of p38 and ERK1/2 were also examined in infected cells treated with socs3 siRNA.The expression of socs3 gene was examined in Chlamydia-infected cells treated with IL-10 or Stattic by RT-PCR.IL-6 and IL-12 were measured in infect-ed cells treated with socs3 siRNA using ELISA kits.Results:Socs3 expression was up-regulated by IL-10 through activation of STAT3 protein.IL-6 and IL-12 induced by Chlamydia were down-regulated by IL-10 through induction of socs3.The activation of p38 and ERK1/2 signalling pathways were inhibited by SOCS3.Conclusion:IL-10 inhibits the production of pro-inflammatory cytokines through induction of SOCS3 and inhibition p38 and ERK1/2 signalling pathways.
2.Effects of evodiamine on inflammation and apoptosis of airway epithelial cells in asthma model rats and its mechanism
Jun LEI ; Lijun LU ; Lingyan LUO ; Song QIAO ; Yanan TONG ; Yang ZHENG ; Lei YAO
China Pharmacy 2024;35(11):1351-1356
OBJECTIVE To explore the effects and potential mechanism of evodiamine on inflammatory response and apoptosis of epithelial cells in asthma model rats. METHODS SD rats were separated into control group, model group, evodiamine low-dose group (10 mg/kg), evodiamine high-dose group (20 mg/kg), dexamethasone group (positive control, 0.5 mg/kg), epidermal growth factor (EGF) group [mitogen-activated protein kinase (MAPK) activator, 10 μg], evodiamine high-dose+EGF group (20 mg/kg evodiamine+10 μg EGF), with 10 rats in each group. Except for the control group, the other groups were sensitized by 3-point injection of 10% ovalbumin(OVA)-aluminium hydroxide mixture and stimulated by inhalation of 2%OVA nebulized liquid to establish an asthma model. The count of inflammatory cells (macrophages and lymphocytes) in bronchoalveolar lavage fluid (BALF) was detected in each group; pathological changes of lung tissue in rats were observed; the apoptosis of airway epithelial cells, the levels of serum inflammatory factors [tumor necrosis factor-α, interleukin-6 (IL-6) and IL-4], the expressions of pathway-related proteins p38 MAPK, phosphorylated p38 MAPK (p-p38 MAPK), signal transduction and transcription activating factor 1 (STAT1)] and apoptosis-related proteins [B cell lymphoma-2 (Bcl-2) and Bcl-2 associated X protein (Bax)] were all detected in lung tissue. RESULTS Compared with the control group, bronchial mucosal edema, thickening of alveolar septa and extensive infiltration of inflammatory cells were observed in the lung tissue of rats in the model group; the number of inflammatory cells, apoptosis rate of airway epithelial cells, the levels of inflammatory factors, p-38 MAPK/p-38 MAPK, and the protein expressions of Bax and STAT1 were increased significantly; the expressions of Bcl-2 protein and Bcl-2/Bax were reduced significantly (P<0.05). Compared with the model group, the pathological changes in lung tissues were alleviated to varying degrees in evodiamine low-dose and high-dose groups, and dexamethasone groups, and the above indicators were significantly reversed. However, the change trends of corresponding indicators in the EGF group were opposite to the above (P<0.05). EGF could significantly attenuate the effect of high-dose evodiamine on inflammatory response in asthmatic rats (P<0.05). CONCLUSIONS Evodiamine can relieve inflammatory reactions and inhibit the apoptosis of airway epithelial cells in asthmatic rats, the mechanism of which may be associated with inhibiting p38 MAPK/STAT1 signaling pathway.
3.Effects of evodiamine on inflammation and apoptosis of airway epithelial cells in asthma model rats and its mechanism
Jun LEI ; Lijun LU ; Lingyan LUO ; Song QIAO ; Yanan TONG ; Yang ZHENG ; Lei YAO
China Pharmacy 2024;35(11):1351-1356
OBJECTIVE To explore the effects and potential mechanism of evodiamine on inflammatory response and apoptosis of epithelial cells in asthma model rats. METHODS SD rats were separated into control group, model group, evodiamine low-dose group (10 mg/kg), evodiamine high-dose group (20 mg/kg), dexamethasone group (positive control, 0.5 mg/kg), epidermal growth factor (EGF) group [mitogen-activated protein kinase (MAPK) activator, 10 μg], evodiamine high-dose+EGF group (20 mg/kg evodiamine+10 μg EGF), with 10 rats in each group. Except for the control group, the other groups were sensitized by 3-point injection of 10% ovalbumin(OVA)-aluminium hydroxide mixture and stimulated by inhalation of 2%OVA nebulized liquid to establish an asthma model. The count of inflammatory cells (macrophages and lymphocytes) in bronchoalveolar lavage fluid (BALF) was detected in each group; pathological changes of lung tissue in rats were observed; the apoptosis of airway epithelial cells, the levels of serum inflammatory factors [tumor necrosis factor-α, interleukin-6 (IL-6) and IL-4], the expressions of pathway-related proteins p38 MAPK, phosphorylated p38 MAPK (p-p38 MAPK), signal transduction and transcription activating factor 1 (STAT1)] and apoptosis-related proteins [B cell lymphoma-2 (Bcl-2) and Bcl-2 associated X protein (Bax)] were all detected in lung tissue. RESULTS Compared with the control group, bronchial mucosal edema, thickening of alveolar septa and extensive infiltration of inflammatory cells were observed in the lung tissue of rats in the model group; the number of inflammatory cells, apoptosis rate of airway epithelial cells, the levels of inflammatory factors, p-38 MAPK/p-38 MAPK, and the protein expressions of Bax and STAT1 were increased significantly; the expressions of Bcl-2 protein and Bcl-2/Bax were reduced significantly (P<0.05). Compared with the model group, the pathological changes in lung tissues were alleviated to varying degrees in evodiamine low-dose and high-dose groups, and dexamethasone groups, and the above indicators were significantly reversed. However, the change trends of corresponding indicators in the EGF group were opposite to the above (P<0.05). EGF could significantly attenuate the effect of high-dose evodiamine on inflammatory response in asthmatic rats (P<0.05). CONCLUSIONS Evodiamine can relieve inflammatory reactions and inhibit the apoptosis of airway epithelial cells in asthmatic rats, the mechanism of which may be associated with inhibiting p38 MAPK/STAT1 signaling pathway.
4.Impacts of Schisandrin B on airway inflammation and airway remodeling in asthmatic rats by regulating Noxa/Hsp27/NF-κB signaling pathway
Jun LEI ; Lingyan LUO ; Song QIAO
Chinese Journal of Immunology 2024;40(12):2484-2489
Objective:To investigate the impacts of Schisandrin B(Sch B)on airway inflammation and airway remodeling in asthmatic rats by regulating Noxa/Heat shock protein 27(Hsp27)/nuclear factor-κB(NF-κB)signaling pathway.Methods:SD male rats were randomly separated into control group(normal feeding),asthma group,Sch B-L group(40 mg/kg),Sch B-H group(80 mg/kg),positive control group(0.5 mg/kg dexamethasone),Vector group(tail vein injection of empty plasmid+80 mg/kg Sch B),Noxa group(tail vein injection of Noxa overexpression plasmid+80 mg/kg Sch B),with 6 rats in each group.Except the control group,6 groups of rats were sensitized and stimulated with ovalbumin to establish asthma rat model,and were given drug intervention,once a day for four weeks.RT-qPCR was applied to measure the expression of Noxa in lung tissue;differential white blood cell counts in bronchoalveolar lavage fluid(BALF)were performed;ELISA was applied to measure the levels of IL-4,INF-α,IL-13 and IL-5 in rat serum;HE staining was applied to observe the histopathology of lung tissue of rats in each group;expression of Noxa protein and phosphorylation levels of Hsp27 and NF-κB in lung tissue were detected by Western blot.Results:Compared with the Vector group,the expression lev-el of Noxa in the left lung tissue of the Noxa group was obviously increased;compared with the control group,the right lung tissue structure of the rats in the asthma group was obviously damaged,the tracheal tube was obviously narrowed,the interstitium was mas-sively inflammatory infiltration,the thickness of the bronchial smooth muscle,the thickness of the basement membrane and the cir-cumference of the basement membrane were obviously increased,and the cells in the BALF were obviously increased,the total num-ber,eosinophils,neutrophils,and lymphocytes were obviously increased,and macrophages were obviously decreased,the levels of serum TNF-α,IL-4,IL-5 and IL-13 were obviously increased,the expression levels of Noxa,p-Hsp27/Hsp27,p-NF-κB p65/NF-κB p65 in the left lung tissue were obviously increased(P<0.05);compared with the asthma group,the duct stenosis in the right lung tis-sue of the Sch B-L group,the Sch B-H group and the positive control group were obviously improved,the inflammatory infiltration was reduced,the thickness of the bronchial smooth muscle,the thickness of the basement membrane and the circumference of the base-ment membrane were obviously reduced,and the cells in the BALF were obviously reduced,the total number,eosinophils,neutro-phils,and lymphocytes were obviously decreased,and macrophages were obviously increased,the levels of serum TNF-α,IL-4,IL-5 and IL-13 were obviously decreased,the expression levels of Noxa,p-Hsp27/Hsp27,p-NF-κB p65/NF-κB p65 in the left lung tissue were obviously decreased and was dependent on dose(P<0.05);overexpression of Noxa attenuated the ameliorating effects of Sch B on airway inflammation and airway remodeling in asthmatic rats.Conclusion:Sch B can effectively ameliorate airway inflammation and airway remodeling in asthmatic rats by regulating Noxa/Hsp27/NF-κB signaling pathway.
5.Status quo survey of nutrition work ability in primary medical institutions of Chongqing City
Ping FENG ; Jiahui CHEN ; Cheng LONG ; Ying ZHANG ; Lingyan YUAN ; Shuquan LUO ; Jingrong CHEN
Chongqing Medicine 2024;53(13):2028-2032
Objective To understand the status quo of nutrition working ability in primary medical and health institutions of Chongqing City.Methods Three primary medical institutions were randomly extracted from each of 39 districts and counties of Chongqing City,and Primary Nutrition Service Capacity Survey Form and Nutrition Work Capacity Survey System were adopted to conduct the questionnaire survey.Then the sur-vey results were analyzed.Results A total of 117 primary medical institutions were surveyed,in which 86 in-stitutions(73.50%)undertook the nutritional work.The number of engaging the nutrition full-time work in the units was 0(0,0).Among the nutritional staff,the age in 164 persons was 30-<40 years old,accounting for 48.38%,180 persons(53.10%)had the primary title,232 persons(68.44%)had the bachelor degree,287 persons(84.66%)had the medical related background,but only 2 persons had the nutritional related profes-sional background.There were 57(48.72%),75(64.10%),77(65.81%)primary medical institutions in carry-ing out the nutrition and health management of pregnant women,children aged 0-6 years old and elderly peo-ple,34 institutions(29.10%)in carrying out nutritional monitoring,and 17 institutions(14.50%)had the clinical nutrition work ability.Compared with the villages and towns,the proportion of urban area primary medical institutions in carrying out the blood routine items in children aged 0-6 years old,hemoglobin,blood routine and urine routine items in elderly people was higher,the number of published popular science works on nutrition was more,and the differences were statistically significant(P<0.05).Conclusion The nutrition work system of primary medi-cal institutions in Chongqing City is temporarily imperfect,the specialized persons still lack and the nutritional health service level needs to be further strengthened.
6.The impact of bilateral asynchronous discharges on cognitive functions in temporal lobe epilepsy patients
Yang CAI ; Xiaoling WU ; Lingyan MAO ; Wenyi LUO ; Jing DING ; Xin WANG
Chinese Journal of Neurology 2024;57(10):1090-1100
Objective:To investigate the cognitive functions of temporal lobe epilepsy (TLE) patients with bilateral asynchronous interictal discharges.Methods:A total of 162 TLE patients who were treated at Zhongshan Hospital, Fudan University, from June 2021 to December 2023 were collected. According to the interictal scalp electroencephalogram, TLE patients were classified to the TLE with bilateral temporal asynchronous interictal epileptiform discharges ( n=51) and TLE with unilateral temporal epileptiform discharges ( n=111). Unilateral TLE patients were divided into TLE with right ( n=48) and left ( n=63) temporal epileptiform discharges. The Mini-Mental State Examination (MMSE), Montreal Cognitive Assessment (MoCA), Digital Span (DS), Verbal Fluency Test (VFT), the third part of Color Word Test (CWT-C), Trail Making Test-B (TMT-B), Symbol Digit Modalities Test (SDMT), Auditory Verbal Learning Test (AVLT), Rey-Osterrieth Complex Figure (ROCF), and Similarity Comprehension Test were performed for the participants. The differences of cognitive functions between patients with bilateral and unilateral temporal discharges were compared. Univariate and multivariate Logistic regression models were used to analyze the risk factors for patients with bilateral temporal asynchronous discharges. Spearman analysis was used to explore the correlation between cognitive function and clinical indicators. Results:In the group of TLE patients with bilateral asynchronous discharges compared to those with unilateral discharges, the completion time of CWT-C [67 (55, 103) s vs 59 (50, 71) s, Z=-2.904, P=0.004], TMT-B [159 (108, 219) s vs 129 (95, 180) s, Z=-2.361, P=0.018] was longer. Additionally, TLE patients with bilateral asynchronous discharges got lower scores of MMSE [28 (26, 29) vs 29 (28, 30), Z=3.098, P=0.002], MoCA [23 (19, 28) vs 27 (23, 28), Z=3.175, P=0.001], AVLT1+2+3 [16.843±6.482 vs 19.162±5.526, t=-2.347, P=0.020], AVLT6 [6 (3, 10) vs 8 (5, 10), Z=3.275, P=0.001], ROCF2 [15 (8, 22) vs 20 (12, 25), Z=2.870, P=0.004], ROCF3 [14 (8, 22) vs 20 (11, 25), Z=2.634, P=0.008], and Similarity Test [13 (8, 18) vs 16 (12, 20), Z=2.387, P=0.017] as well as lower VFT-vegetable and fruit count [15 (13, 19) vs 18 (15, 21), Z=2.402, P=0.016] and SDMT completion count [41 (30, 53) vs 51 (40, 60), Z=3.089, P=0.002]. The multivariate Logistic regression analysis showed that the decrease in AVLT6 scores ( OR=1.546, 95% CI 1.150-2.078, P=0.004) and longer TMT-B time ( OR=1.013, 95% CI 1.001-1.025, P=0.035) were independent risk factors for TLE patients with bilateral asynchronous discharges. Conclusions:Compared to the patients with TLE characterized by unilateral temporal lobe discharges, those with asynchronous discharges in bilateral temporal lobes show statistically significant declines in all domains of cognitive functions, including executive function, memory, and language abilities. Decreased cue recall ability in language memory and prolonged trail-making test in executive function are independent cognitive impairment risk factors for bilateral temporal asynchronous discharges.
7.Recommendations for prescription review of commonly used anti-seizure medications in treatment of children with epilepsy
Qianqian QIN ; Qian DING ; Xiaoling LIU ; Heping CAI ; Zebin CHEN ; Lina HAO ; Liang HUANG ; Yuntao JIA ; Lingyan JIAN ; Zhong LI ; Hua LIANG ; Maochang LIU ; Qinghong LU ; Xiaolan MO ; Jing MIAO ; Yanli REN ; Huajun SUN ; Yanyan SUN ; Jing XU ; Meixing YAN ; Li YANG ; Shengnan ZHANG ; Shunguo ZHANG ; Xin ZHAO ; Jie DENG ; Fang FANG ; Li GAO ; Hong HAN ; Shaoping HUANG ; Li JIANG ; Baomin LI ; Jianmin LIANG ; Jianxiang LIAO ; Zhisheng LIU ; Rong LUO ; Jing PENG ; Dan SUN ; Hua WANG ; Ye WU ; Jian YANG ; Yuqin ZHANG ; Jianmin ZHONG ; Shuizhen ZHOU ; Liping ZOU ; Yuwu JIANG ; Xiaoling WANG
Chinese Journal of Applied Clinical Pediatrics 2023;38(10):740-748
Anti-seizure medications (ASMs) are the main therapy for epilepsy.There are many kinds of ASMs with complex mechanism of action, so it is difficult for pharmacists to examine prescriptions.This paper put forward some suggestions on the indications, dosage forms/routes of administration, appropriateness of usage and dosage, combined medication and drug interaction, long-term prescription review, individual differences in pathophysiology of children, and drug selection when complicated with common epilepsy, for the reference of doctors and pharmacists.
8.Investigation on the quality of life and demands of family members of patients with mental disorders in hospice care
Xiao ZHANG ; Qian ZHANG ; Cairun LUO ; Lingyan ZHANG ; Ruiyu XU ; Junmei WU
Sichuan Mental Health 2022;35(6):537-542
ObjectiveTo investigate the quality of life and demands of family members of patients with mental disorders in hospice care, in order to create a better medical care environment for patients to meet their demands. MethodsA total of 205 family members of patients with mental disorders in hospice care were consecutively sampled from two special psychiatric hospitals in Deyang city with convenient sampling method. The Chinese version of WHO Quality of Life-BREF (WHOQOL-BREF) and Critical Care Family Needs Inventory (CCFNI) were used to assess the quality of life and demands of family members. ResultsAmong the patients' family members, WHOQOL-BREF scored (68.08±9.98) in the physiological field, (63.82±9.39) in the psychological field, (70.73±12.61) in the social relations field, and (64.24±11.87) in the environmental field. Compared with the domestic general population, there were significant differences in other fields except the physiological field (t=3.066, 9.845, 16.109, P<0.01). In CCFNI, the score of condition assurance factor was (3.20±0.41), information support was (2.86±0.50), proximity to patients was (2.79±0.46), self comfort was (2.35±0.47), and medical staff support was (2.60±0.44). ConclusionThe quality of life of the family members of patients with mental disorders in hospice care may be higher than that of the general population, and their demands mainly focus on the condition assurance and information support.
9.Aristolochic acids exposure was not the main cause of liver tumorigenesis in adulthood.
Shuzhen CHEN ; Yaping DONG ; Xinming QI ; Qiqi CAO ; Tao LUO ; Zhaofang BAI ; Huisi HE ; Zhecai FAN ; Lingyan XU ; Guozhen XING ; Chunyu WANG ; Zhichao JIN ; Zhixuan LI ; Lei CHEN ; Yishan ZHONG ; Jiao WANG ; Jia GE ; Xiaohe XIAO ; Xiuwu BIAN ; Wen WEN ; Jin REN ; Hongyang WANG
Acta Pharmaceutica Sinica B 2022;12(5):2252-2267
Aristolochic acids (AAs) have long been considered as a potent carcinogen due to its nephrotoxicity. Aristolochic acid I (AAI) reacts with DNA to form covalent aristolactam (AL)-DNA adducts, leading to subsequent A to T transversion mutation, commonly referred as AA mutational signature. Previous research inferred that AAs were widely implicated in liver cancer throughout Asia. In this study, we explored whether AAs exposure was the main cause of liver cancer in the context of HBV infection in mainland China. Totally 1256 liver cancer samples were randomly retrieved from 3 medical centers and a refined bioanalytical method was used to detect AAI-DNA adducts. 5.10% of these samples could be identified as AAI positive exposure. Whole genome sequencing suggested 8.41% of 107 liver cancer patients exhibited the dominant AA mutational signature, indicating a relatively low overall AAI exposure rate. In animal models, long-term administration of AAI barely increased liver tumorigenesis in adult mice, opposite from its tumor-inducing role when subjected to infant mice. Furthermore, AAI induced dose-dependent accumulation of AA-DNA adduct in target organs in adult mice, with the most detected in kidney instead of liver. Taken together, our data indicate that AA exposure was not the major threat of liver cancer in adulthood.
10.Research progress on the impact of intermittent fasting on cardiovascular risk factors
Jinghuan GONG ; Lingyan ZHU ; Zhenlan LUO
Chinese Journal of Practical Nursing 2021;37(17):1356-1361
Dietary intervention is essential as a primary prevention measure for cardiovascular diseases. Nurses master scientific dietary guidance methods, which can help reduce the risk of cardiovascular diseases in high-risk groups and reduce the medical burden of cardiovascular diseases. This paper reviews the classification of intermittent fasting, its impact on cardiovascular risk factors, its possible mechanisms for preventing cardiovascular diseases, its safety and compliance, and suggestions on domestic cardiovascular research. In order to provide references for future research in China.

Result Analysis
Print
Save
E-mail