1.Study on sIgE distribution characteristics and the sensitization pattern of allergen in 1 161 patients with allergic diseases of respiratory tract in northwest China.
Miao Yuan XU ; Qing Yuan YE ; Jia Le ZHANG ; Zong Cheng HUANG ; Yi WANG ; Jing LIU ; Hua Jie WU ; Meng XU ; Yu WANG ; Bao Qing SUN ; Wen Ting LUO
Chinese Journal of Preventive Medicine 2023;57(9):1355-1363
Objective: To explore the allergen map of patients with allergic diseases in northwest China, to investigate the distribution characteristics of serum specific Immunoglobulin E (sIgE) in different ages, genders, diseases and the sensitization patterns of allergens. Methods: This study is a cross-sectional study, a total of 1 161 patients with confirmed respiratory allergic diseases were selected retrospectively from outpatient or inpatient department of Gansu Provincial People's Hospital, Gansu Provincial Maternity and Child Care Hospital, General Hospital of Ningxia Medical University, Yinchuan Maternal and Child Health Care Hospital, Xijing Hospital, Air Force Military Medical University and Tumor Hospital of Inner Mongolia Autonomous Region from June 2019 to October 2022. HAIKE ALLEOS 2000 fluorescent magnetic particle chemiluminescence method was used to quantify their serum for 12 inhaled allergen-specific IgE. Chi square test or Fisher's exact test were used for comparison between count data groups (Bonferroni correction was used for further pairwise comparison in multiple groups, two-sided P<0.05/3=0.017 considered that the difference was statistically significant). Pearson correlation analysis was used for correlation of continuous numerical variables. Results: The positive detection rate of sIgE in 1 161 patients was 66.8%(776/1 161). The three highest positive rate of inhaled allergen were mugwort(599/1 161, 51.6%), French chrysanthemum(565/1 161, 48.7%) and dandelion(412/1 161, 35.5%). In different age groups, the highest positive rate of sIgE was 7-18 age group(379/513, 73.9%) while the lowest positive rate was 4-6 age group(222/370, 60.0%), the difference between groups was statistically significant(χ2=21.177, P<0.001). The sensitization peak of mugwort, French chrysanthemum, plantain, timothy, birch, dermatophagoides pteronyssinus, dermatophagoides farinae, cat epithelium, dog epithelium and German cockroach appeared in 7-18 age group. In different disease groups, the highest positive rate of sIgE was allergic rhinitis with asthma group (500/717, 69.7%) while the lowest positive rate was asthma group (76/144, 52.8%), the difference between groups was statistically significant(χ2=15.563, P<0.001). In different gender groups, the positive rate of sIgE in male (503/711, 70.7%) was higher than in female (273/450, 60.7%), the difference between groups was statistically significant(χ2=12.630, P<0.001). The multiple-sensitization rate was 86.9%(674/776) and the double-sensitization rate was 16.8%(130/776) in sIgE positive patients. Pearson correlation results showed that there was an extremely strong correlation between dandelion and French chrysanthemum(r=0.93,P<0.001). There was a strong correlation between mugwort and French chrysanthemum(r=0.64,P<0.001). In the co-sensitization analysis, the number of patients sensitized by mugwort, French chrysanthemum, dandelion, plantain and timothy accounted for 25.2%(170/674)of the total number of multiple sensitization. The number of patients sensitized by mugwort, French chrysanthemum and dandelion accounted for 58.3%(393/674)of the total number of multiple sensitization. The number of patients sensitized by mugwort, French chrysanthemum, dandelion and plantain accounted for 35.6%(240/674) of the total number of multiple sensitization. Conclusion: Mugwort, French chrysanthemum, dandelion are the major inhaled allergens in northwest China. The positive rate of sIgE was different in different ages, diseases and genders. The multiple-sensitization rate of allergen was high and there was a certain positive correlation between pollen allergen-specific IgE pairwise, suggesting that there may exist co-sensitization or cross-reactions among allergens.
Pregnancy
;
Child
;
Animals
;
Dogs
;
Female
;
Humans
;
Male
;
Allergens
;
Cross-Sectional Studies
;
Retrospective Studies
;
Respiratory System
;
Asthma
2.Study on sIgE distribution characteristics and the sensitization pattern of allergen in 1 161 patients with allergic diseases of respiratory tract in northwest China.
Miao Yuan XU ; Qing Yuan YE ; Jia Le ZHANG ; Zong Cheng HUANG ; Yi WANG ; Jing LIU ; Hua Jie WU ; Meng XU ; Yu WANG ; Bao Qing SUN ; Wen Ting LUO
Chinese Journal of Preventive Medicine 2023;57(9):1355-1363
Objective: To explore the allergen map of patients with allergic diseases in northwest China, to investigate the distribution characteristics of serum specific Immunoglobulin E (sIgE) in different ages, genders, diseases and the sensitization patterns of allergens. Methods: This study is a cross-sectional study, a total of 1 161 patients with confirmed respiratory allergic diseases were selected retrospectively from outpatient or inpatient department of Gansu Provincial People's Hospital, Gansu Provincial Maternity and Child Care Hospital, General Hospital of Ningxia Medical University, Yinchuan Maternal and Child Health Care Hospital, Xijing Hospital, Air Force Military Medical University and Tumor Hospital of Inner Mongolia Autonomous Region from June 2019 to October 2022. HAIKE ALLEOS 2000 fluorescent magnetic particle chemiluminescence method was used to quantify their serum for 12 inhaled allergen-specific IgE. Chi square test or Fisher's exact test were used for comparison between count data groups (Bonferroni correction was used for further pairwise comparison in multiple groups, two-sided P<0.05/3=0.017 considered that the difference was statistically significant). Pearson correlation analysis was used for correlation of continuous numerical variables. Results: The positive detection rate of sIgE in 1 161 patients was 66.8%(776/1 161). The three highest positive rate of inhaled allergen were mugwort(599/1 161, 51.6%), French chrysanthemum(565/1 161, 48.7%) and dandelion(412/1 161, 35.5%). In different age groups, the highest positive rate of sIgE was 7-18 age group(379/513, 73.9%) while the lowest positive rate was 4-6 age group(222/370, 60.0%), the difference between groups was statistically significant(χ2=21.177, P<0.001). The sensitization peak of mugwort, French chrysanthemum, plantain, timothy, birch, dermatophagoides pteronyssinus, dermatophagoides farinae, cat epithelium, dog epithelium and German cockroach appeared in 7-18 age group. In different disease groups, the highest positive rate of sIgE was allergic rhinitis with asthma group (500/717, 69.7%) while the lowest positive rate was asthma group (76/144, 52.8%), the difference between groups was statistically significant(χ2=15.563, P<0.001). In different gender groups, the positive rate of sIgE in male (503/711, 70.7%) was higher than in female (273/450, 60.7%), the difference between groups was statistically significant(χ2=12.630, P<0.001). The multiple-sensitization rate was 86.9%(674/776) and the double-sensitization rate was 16.8%(130/776) in sIgE positive patients. Pearson correlation results showed that there was an extremely strong correlation between dandelion and French chrysanthemum(r=0.93,P<0.001). There was a strong correlation between mugwort and French chrysanthemum(r=0.64,P<0.001). In the co-sensitization analysis, the number of patients sensitized by mugwort, French chrysanthemum, dandelion, plantain and timothy accounted for 25.2%(170/674)of the total number of multiple sensitization. The number of patients sensitized by mugwort, French chrysanthemum and dandelion accounted for 58.3%(393/674)of the total number of multiple sensitization. The number of patients sensitized by mugwort, French chrysanthemum, dandelion and plantain accounted for 35.6%(240/674) of the total number of multiple sensitization. Conclusion: Mugwort, French chrysanthemum, dandelion are the major inhaled allergens in northwest China. The positive rate of sIgE was different in different ages, diseases and genders. The multiple-sensitization rate of allergen was high and there was a certain positive correlation between pollen allergen-specific IgE pairwise, suggesting that there may exist co-sensitization or cross-reactions among allergens.
Pregnancy
;
Child
;
Animals
;
Dogs
;
Female
;
Humans
;
Male
;
Allergens
;
Cross-Sectional Studies
;
Retrospective Studies
;
Respiratory System
;
Asthma
3.Incidence of extrauterine growth retardation and its risk factors in very preterm infants during hospitalization: a multicenter prospective study.
Wei SHEN ; Zhi ZHENG ; Xin-Zhu LIN ; Fan WU ; Qian-Xin TIAN ; Qi-Liang CUI ; Yuan YUAN ; Ling REN ; Jian MAO ; Bi-Zhen SHI ; Yu-Mei WANG ; Ling LIU ; Jing-Hui ZHANG ; Yan-Mei CHANG ; Xiao-Mei TONG ; Yan ZHU ; Rong ZHANG ; Xiu-Zhen YE ; Jing-Jing ZOU ; Huai-Yu LI ; Bao-Yin ZHAO ; Yin-Ping QIU ; Shu-Hua LIU ; Li MA ; Ying XU ; Rui CHENG ; Wen-Li ZHOU ; Hui WU ; Zhi-Yong LIU ; Dong-Mei CHEN ; Jin-Zhi GAO ; Jing LIU ; Ling CHEN ; Cong LI ; Chun-Yan YANG ; Ping XU ; Ya-Yu ZHANG ; Si-Le HU ; Hua MEI ; Zu-Ming YANG ; Zong-Tai FENG ; San-Nan WANG ; Er-Yan MENG ; Li-Hong SHANG ; Fa-Lin XU ; Shao-Ping OU ; Rong JU
Chinese Journal of Contemporary Pediatrics 2022;24(2):132-140
OBJECTIVES:
To investigate the incidence of extrauterine growth retardation (EUGR) and its risk factors in very preterm infants (VPIs) during hospitalization in China.
METHODS:
A prospective multicenter study was performed on the medical data of 2 514 VPIs who were hospitalized in the department of neonatology in 28 hospitals from 7 areas of China between September 2019 and December 2020. According to the presence or absence of EUGR based on the evaluation of body weight at the corrected gestational age of 36 weeks or at discharge, the VPIs were classified to two groups: EUGR group (n=1 189) and non-EUGR (n=1 325). The clinical features were compared between the two groups, and the incidence of EUGR and risk factors for EUGR were examined.
RESULTS:
The incidence of EUGR was 47.30% (1 189/2 514) evaluated by weight. The multivariate logistic regression analysis showed that higher weight growth velocity after regaining birth weight and higher cumulative calorie intake during the first week of hospitalization were protective factors against EUGR (P<0.05), while small-for-gestational-age birth, prolonged time to the initiation of total enteral feeding, prolonged cumulative fasting time, lower breast milk intake before starting human milk fortifiers, prolonged time to the initiation of full fortified feeding, and moderate-to-severe bronchopulmonary dysplasia were risk factors for EUGR (P<0.05).
CONCLUSIONS
It is crucial to reduce the incidence of EUGR by achieving total enteral feeding as early as possible, strengthening breastfeeding, increasing calorie intake in the first week after birth, improving the velocity of weight gain, and preventing moderate-severe bronchopulmonary dysplasia in VPIs.
Female
;
Fetal Growth Retardation
;
Gestational Age
;
Hospitalization
;
Humans
;
Incidence
;
Infant
;
Infant, Newborn
;
Infant, Premature
;
Infant, Very Low Birth Weight
;
Prospective Studies
;
Risk Factors
4.Outcomes at discharge of preterm infants born <34 weeks' gestation.
Ning Xin LUO ; Si Yuan JIANG ; Yun CAO ; Shu Jun LI ; Jun Yan HAN ; Qi ZHOU ; Meng Meng LI ; Jin Zhen GUO ; Hong Yan LIU ; Zu Ming YANG ; Yong JI ; Bao Quan ZHANG ; Zhi Feng HUANG ; Jing YUAN ; Dan Dan PAN ; Jing Yun SHI ; Xue Feng HU ; Su LIN ; Qian ZHAO ; Chang Hong YAN ; Le WANG ; Qiu Fen WEI ; Qing KAN ; Jin Zhi GAO ; Cui Qing LIU ; Shan Yu JIANG ; Xiang Hong LIU ; Hui Qing SUN ; Juan DU ; Li HE
Chinese Journal of Pediatrics 2022;60(8):774-780
Objective: To investigate the incidence and trend of short-term outcomes among preterm infants born <34 weeks' gestation. Methods: A secondary analysis of data from the standardized database established by a multicenter cluster-randomized controlled study "reduction of infection in neonatal intensive care units (NICU) using the evidence-based practice for improving quality (REIN-EPIQ) study". This study was conducted in 25 tertiary NICU. A total of 27 192 infants with gestational age <34 weeks at birth and admitted to NICU within the first 7 days of life from May 2015 to April 2018 were enrolled. Infants with severe congenital malformation were excluded. Descriptive analyses were used to describe the mortality and major morbidities of preterm infants by gestational age groups and different admission year groups. Cochran-Armitage test and Jonckheere-Terpstra test were used to analyze the trend of incidences of mortality and morbidities in 3 study-years. Multiple Logistic regression model was constructed to analyze the differences of outcomes in 3 study-years adjusting for confounders. Results: A total of 27 192 preterm infants were enrolled with gestational age of (31.3±2.0) weeks at birth and weight of (1 617±415) g at birth. Overall, 9.5% (2 594/27 192) of infants were discharged against medical advice, and the overall mortality rate was 10.7% (2 907/27 192). Mortality for infants who received complete care was 4.7% (1 147/24 598), and mortality or any major morbidity was 26.2% (6 452/24 598). The incidences of moderate to severe bronchopulmonary dysplasia, sepsis, severe intraventricular hemorrhage or periventricular leukomalacia, proven necrotizing enterocolitis, and severe retinopathy of prematurity were 16.0% (4 342/27 192), 11.9% (3 225/27 192), 6.8% (1 641/24 206), 3.6% (939/25 762) and 1.5% (214/13 868), respectively. There was a decreasing of the overall mortality (P<0.001) during the 3 years. Also, the incidences for sepsis and severe retinopathy of prematurity both decreased (both P<0.001). However, there were no significant differences in the major morbidity in preterm infants who received complete care during the 3-year study period (P=0.230). After adjusting for confounders, infants admitted during the third study year showed significantly lower risk of overall mortality (adjust OR=0.62, 95%CI 0.55-0.69, P<0.001), mortality or major morbidity, moderate to severe bronchopulmonary dysplasia, sepsis and severe retinopathy of prematurity, compared to those admitted in the first study year (all P<0.05). Conclusions: From 2015 to 2018, the mortality and major morbidities among preterm infants in Chinese NICU decreased, but there is still space for further efforts. Further targeted quality improvement is needed to improve the overall outcome of preterm infants.
Bronchopulmonary Dysplasia/epidemiology*
;
Gestational Age
;
Humans
;
Infant
;
Infant Mortality/trends*
;
Infant, Newborn
;
Infant, Premature
;
Infant, Premature, Diseases/epidemiology*
;
Patient Discharge
;
Retinopathy of Prematurity/epidemiology*
;
Sepsis/epidemiology*
5.Mid-term efficacy of China Net Childhood Lymphoma-mature B-cell lymphoma 2017 regimen in the treatment of pediatric Burkitt lymphoma.
Meng ZHANG ; Pan WU ; Yan Long DUAN ; Ling JIN ; Jing YANG ; Shuang HUANG ; Ying LIU ; Bo HU ; Xiao Wen ZHAI ; Hong Sheng WANG ; Yang FU ; Fu LI ; Xiao Mei YANG ; An Sheng LIU ; Shuang QIN ; Xiao Jun YUAN ; Yu Shuang DONG ; Wei LIU ; Jian Wen ZHOU ; Le Ping ZHANG ; Yue Ping JIA ; Jian WANG ; Li Jun QU ; Yun Peng DAI ; Guo Tao GUAN ; Li Rong SUN ; Jian JIANG ; Rong LIU ; Run Ming JIN ; Zhu Jun WANG ; Xi Ge WANG ; Bao Xi ZHANG ; Kai Lan CHEN ; Shu Quan ZHUANG ; Jing ZHANG ; Chun Ju ZHOU ; Zi Fen GAO ; Min Cui ZHENG ; Yonghong ZHANG
Chinese Journal of Pediatrics 2022;60(10):1011-1018
Objective: To analyze the clinical characteristics of children with Burkitt lymphoma (BL) and to summarize the mid-term efficacy of China Net Childhood Lymphoma-mature B-cell lymphoma 2017 (CNCL-B-NHL-2017) regimen. Methods: Clinical features of 436 BL patients who were ≤18 years old and treated with the CNCL-B-NHL-2017 regimen from May 2017 to April 2021 were analyzed retrospectively. Clinical characteristics of patients at disease onset were analyzed and the therapeutic effects of patients with different clinical stages and risk groups were compared. Survival analysis was performed by Kaplan-Meier method, and Cox regression was used to identify the prognostic factors. Results: Among 436 patients, there were 368 (84.4%) males and 68 (15.6%) females, the age of disease onset was 6.0 (4.0, 9.0) years old. According to the St. Jude staging system, there were 4 patients (0.9%) with stage Ⅰ, 30 patients (6.9%) with stage Ⅱ, 217 patients (49.8%) with stage Ⅲ, and 185 patients (42.4%) with stage Ⅳ. All patients were stratified into following risk groups: group A (n=1, 0.2%), group B1 (n=46, 10.6%), group B2 (n=19, 4.4%), group C1 (n=285, 65.4%), group C2 (n=85, 19.5%). Sixty-three patients (14.4%) were treated with chemotherapy only and 373 patients (85.6%) were treated with chemotherapy combined with rituximab. Twenty-one patients (4.8%) suffered from progressive disease, 3 patients (0.7%) relapsed, and 13 patients (3.0%) died of treatment-related complications. The follow-up time of all patients was 24.0 (13.0, 35.0) months, the 2-year event free survival (EFS) rate of all patients was (90.9±1.4) %. The 2-year EFS rates of group A, B1, B2, C1 and C2 were 100.0%, 100.0%, (94.7±5.1) %, (90.7±1.7) % and (85.9±4.0) %, respectively. The 2-year EFS rates was higher in group A, B1, and B2 than those in group C1 (χ2=4.16, P=0.041) and group C2 (χ2=7.21, P=0.007). The 2-year EFS rates of the patients treated with chemotherapy alone and those treated with chemotherapy combined with rituximab were (79.3±5.1)% and (92.9±1.4)% (χ2=14.23, P<0.001) respectively. Multivariate analysis showed that stage Ⅳ (including leukemia stage), serum lactate dehydrogenase (LDH)>4-fold normal value, and with residual tumor in the mid-term evaluation were risk factors for poor prognosis (HR=1.38,1.23,8.52,95%CI 1.05-1.82,1.05-1.43,3.96-18.30). Conclusions: The CNCL-B-NHL-2017 regimen show significant effect in the treatment of pediatric BL. The combination of rituximab improve the efficacy further.
Adolescent
;
Antineoplastic Combined Chemotherapy Protocols/therapeutic use*
;
Burkitt Lymphoma/drug therapy*
;
Child
;
Disease-Free Survival
;
Female
;
Humans
;
Lactate Dehydrogenases
;
Lymphoma, B-Cell/drug therapy*
;
Male
;
Prognosis
;
Retrospective Studies
;
Rituximab/therapeutic use*
;
Treatment Outcome
6.Latest Progresses in Surgical Treatment of Median Arcuate Ligament Syndrome.
Yan Ying YU ; Jing Jing WANG ; Zhi Chao LAI ; Kang LI ; Le Yin XU ; Li Jing FANG ; Jiang Yu MA ; Xiaoxi YU ; Bao LIU
Acta Academiae Medicinae Sinicae 2021;43(2):283-287
Median arcuate ligament syndrome(MALS)is compression of the celiac trunk by the median arcuate ligament.Median arcuate ligament release is the corner stone for the surgical treatment of MALS.Open surgery,laparoscopic surgery,and robot-assisted surgery have been developed,among which laparoscopic surgery has been proposed as the preferred approach in view of its minimal trauma and short hospital stay.Auxiliary celiac plexus neurolysis could further alleviate the patient's discomfort.Moreover,vascular reconstitution is of vital importance in the case of persistent stenosis in the celiac artery despite of median arcuate ligament decompression.Vascular reconstruction has satisfactory long-term patency rate,while endovascular treatment is less invasive.This article aims to summarize the consensuses and advances and shed light on the surgical treatment of MALS.
Celiac Artery/surgery*
;
Constriction, Pathologic/surgery*
;
Decompression, Surgical
;
Humans
;
Laparoscopy
;
Ligaments/surgery*
;
Median Arcuate Ligament Syndrome/surgery*
7.Protective Effect of Total Ginsenoside Ginseng Root on Learning and Memory Impairment and Anxiety in Rats Induced by Hindlimb Suspension
Yu BAO ; Ying CHEN ; Gui-rong ZENG ; Zi-yu YANG ; Rui-le PAN ; Zhe SHI ; Qin HU ; Jing-wei LYU ; Cong LU ; Yang HE ; Ning JIANG ; Bo PENG ; Xin-min LIU ; Lian-kui WEN
Chinese Journal of Experimental Traditional Medical Formulae 2021;27(7):49-56
Objective:To investigate the effect of total ginsenoside ginseng root on the learning and memory impairment and anxiety of hindlimb suspension rats by detecting the performance of rats in the water maze, elevated plus maze, and the expression of hypothalamic-pituitary-adrenal (HPA) axis, inflammatory factors and tryptophan pathway related factors through the intervention of ginsenosides in hindlimb suspension rats. Method:The Wistar male rats were divided into normal group, hindlimb suspension model group, Huperzine A group (0.1 mg·kg-1), and total ginsenoside ginseng root low and high dose groups (100, 200 mg·kg-1), with 8 rats in each group. Except for the normal group, the rats in the other groups maintained a -30° hindlimb suspension state for 24 h. The normal group and the model group received intragastric administration of 10 mL·kg-1 pure water . After 28 days of continuous administration, the water maze and elevated plus maze behavioral tests were performed. After the tests, blood was taken from the abdominal aorta, and the rat brain cortex was peeled off on ice, quenched with liquid nitrogen, and stored at -80 ℃ for later use. LC-MS/MS was used to detect neurotransmitter levels of dopamine, acetylcholine, glutamate,
8.Correlation Analysis of Parasitic Chinese Medicine Based on Morphology-habit-habitat-property and Efficacy
Bao-yu JI ; Kai-le WANG ; Li-xin PEI
Chinese Journal of Experimental Traditional Medical Formulae 2021;27(15):174-180
Objective:To explore the correlation of the botanical characteristics, biological characteristics, habitat, and medicinal property and efficacy of parasitic Chinese medicines, underpin quality evaluation based on property differentiation, and provide references for the development and utilization of parasitic medicinal plant resources. Method:The origin, property and meridian tropism, parasitic type, and the efficacy of the common of parasitic Chinese medicines were summarized. The frequencies of parasitic Chinese medicines in Qingfei Paidu decoction,
9. Study on CYP2E1 gene polymorphism and the relationship between methylation level of its promoter region and liver injury induced by anti-tuberculosis drugs in Mongolian tuberculosis patients in Inner Mongolia
Bao-cui HU ; Jin-qi HAO ; Rui-qing SHI ; Rui-li HOU ; Yan-qin YU ; Dong ZHANG ; Le-le DENG ; Li-qin WEI
Journal of Medical Postgraduates 2020;33(6):598-603
ObjectiveThere are few studies on whether the occurrence of anti-tuberculosis drug-induced liver injury (ADIH) is associated with the polymorphism of CYP2E gene and methylation level. This study aims to CYP2E1 gene polymorphism and the relationship between the methylation level of the promoter region and ADIH in Mongolian tuberculosis (TB) patients.Methods A total of 135 Mongolian TB patients who received standardized treatment at the Tuberculosis Research Institute of Tongliao City, Inner Mongolia from November 2015 to June 2018 were selected. According to the ADIH criteria, TB patients with liver injury were selected as the ADIH group (n=45), and TB patients without liver injury were matched as the control group based on a ratio of 1∶2 (n=90). DNA extraction and polymerase chain reaction (PCR) were performed to amplify the CYP2E1 gene to determine the CYP2E1 rs2031920 genotype, and to analyze the CYP2E1 gene polymorphism and relationship between ADIH and promoter methylation level.Results There were no significant differences in the distribution of CYP2E1 rs2031920 genotype, C1 and C2 gene frequencies between the ADIH group and the control group (P>0.05). The overall methylation level in the promoter region of CYP2E1 gene in ADIH group (0.711±0.085) was significantly lower than that of the control group (0.759±0.062). Results of Logistic regression showed that the overall methylation level in the promoter region of CYP2E1 gene was the influencing factor for the occurrence of ADIH (P<0.005). For each 0.1 unit increase of methylation level, the risk of ADIH occurrence reduced by 0.388 times, and the OR (95% CI) value was 0.388 (between 0.204 and 0.739).Conclusion The overall methylation level in the promoter region of CYP2E1 gene was reduced in Mongolian ADIH patients, but the polymorphism of CYP2E1 gene was not related to the occurrence of ADIH. These results suggested that CYP2E1 methylation could be applied to the prevention and treatment of ADIH in patients with tuberculosis.
10.In Silico Screening of Potential Spike Glycoprotein Inhibitors of SARS-CoV-2 with Drug Repurposing Strategy.
Tian-Zi WEI ; Hao WANG ; Xue-Qing WU ; Yi LU ; Sheng-Hui GUAN ; Feng-Quan DONG ; Chen-le DONG ; Gu-Li ZHU ; Yu-Zhou BAO ; Jian ZHANG ; Guan-Yu WANG ; Hai-Ying LI
Chinese journal of integrative medicine 2020;26(9):663-669
OBJECTIVE:
To select potential molecules that can target viral spike proteins, which may potentially interrupt the interaction between the human angiotension-converting enzyme 2 (ACE2) receptor and viral spike protein by virtual screening.
METHODS:
The three-dimensional (3D)-coordinate file of the receptor-binding domain (RBD)-ACE2 complex for searching a suitable docking pocket was firstly downloaded and prepared. Secondly, approximately 15,000 molecular candidates were prepared, including US Food and Drug Administration (FDA)-approved drugs from DrugBank and natural compounds from Traditional Chinese Medicine Systems Pharmacology (TCMSP), for the docking process. Then, virtual screening was performed and the binding energy in Autodock Vina was calculated. Finally, the top 20 molecules with high binding energy and their Chinese medicine (CM) herb sources were listed in this paper.
RESULTS:
It was found that digitoxin, a cardiac glycoside in DrugBank and bisindigotin in TCMSP had the highest docking scores. Interestingly, two of the CM herbs containing the natural compounds that had relatively high binding scores, Forsythiae fructus and Isatidis radix, are components of Lianhua Qingwen (), a CM formula reportedly exerting activity against severe acute respiratory syndrome (SARS)-Cov-2. Moreover, raltegravir, an HIV integrase inhibitor, was found to have a relatively high binding score.
CONCLUSIONS
A class of compounds, which are from FDA-approved drugs and CM natural compounds, that had high binding energy with RBD of the viral spike protein. Our work provides potential candidates for other researchers to identify inhibitors to prevent SARS-CoV-2 infection, and highlights the importance of CM and integrative application of CM and Western medicine on treating COVID-19.
China
;
Computer Simulation
;
Coronavirus Infections
;
diagnosis
;
drug therapy
;
Drug Repositioning
;
methods
;
Drugs, Chinese Herbal
;
pharmacology
;
Glycoproteins
;
drug effects
;
metabolism
;
Humans
;
Imaging, Three-Dimensional
;
Mass Screening
;
methods
;
Molecular Docking Simulation
;
methods
;
Pandemics
;
Peptidyl-Dipeptidase A
;
drug effects
;
Pneumonia, Viral
;
diagnosis
;
drug therapy
;
Protein Binding
;
United States
;
United States Food and Drug Administration

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