1.Development and evaluation of a triplex RT-qPCR assay with internal references for detection of the Dengue and Zika viruses
Meng-Tao CAO ; Xiao-Yu HU ; Wei YANG ; Chun-Yuan LI ; Xiao-Li XU ; Rui-Wen REN ; Hong-Xia JIANG
Chinese Journal of Zoonoses 2024;40(6):537-543
A triplex RT-qPCR assay with human genes as internal references was established for detection of the Dengue and Zika viruses(DENV and ZIKV,respectively).The conserved regions of the four serotypes of DENV,along with the NS1 gene of ZIKV and the human β-actin gene,which is stably ex-pressed in various human tissues,were targeted by three sets of specific primers and probes.Standard plasmids for four se-rotypes of DENV,ZIKV,and β-actin were constructed as pos-itive controls.Optimal reaction conditions were determined through an L9(34)orthogonal experiment.The specificity,sensitivity,and coverage of the assay were verified and evalua-ted clinically,and the consistency was evaluated against a com-mercial kit for detection of DENV.The triplex RT-qPCR assay established exhibited no non-specific cross reactions with 12 similar arboviruses.The detection sensitivity for DENV and ZIKV were 2.99 and 2.18 copies/μL,respectively,and the intra-group and inter-group repeatability coefficients of variation were within 1.5%.As compared to the commercial kit,the proposed assay obtained positive results for 13 epidemic strains of DENV.Bland-Altman consistency analysis confirmed that the consistency of the detection results of clinical positive samples between the commercial kit and the proposed assay was 92.59%.The highly specific and sensitive triplex RT-qPCR assay with internal references is an effective tool for early and rapid differential identification of DENV and ZIKV.
2.RHD Genotyping Characteristics of RhD-Negative Blood Donors in Wuhu Area
Meng-Nan LI ; Zhen-Jun DU ; Jing-Wen LIU ; Rui ZHANG ; Yuan WANG ; Dian-Ming CAO ; Ji-Chun TAO ; Lu-Chen ZOU ; Hui HUANG ; En-Tao SUN
Journal of Experimental Hematology 2024;32(5):1531-1538
Objective:To investigate the molecular mechanism and distribution characteristics of RhD negative phenotypes in Han population of blood donors in Wuhu city.Methods:A total of 210 RhD-samples from August 2021 to August 2022 were screened by serological test and collected from Wuhu Central Blood Station for the voluntary blood donor population.Exons 1 and 10 of the RHD gene were amplificated by PCR to determine whether the samples had the RHD gene.Exons 1-10 of the RHD gene were amplificated by PCR and zygosity analysis were performed in 82 samples containing D gene,and Sanger sequencing was performed on 55 samples containing all RHD exons to determine the genotype.Results:Among 210 RhD-specimens,128 cases(60.38%)had RHD gene deletion.27 cases had partial exons of RHD,including 2 cases with RHD*DVI.3/RHD*01N.01,24 cases with RHD*01N.04/RHD*01N.01,and 1 case with RHD-CE(2-10)/RHD*01N.01.55 cases had retained all of 10 exons,including 4 cases with RHD*01/RHD*01N.01,6 cases with RHD*15/RHD*01N.01,1 case with RHD*01W.72/RHD*01N.01,1 case with RHD*15/RHD*01EL.01,39 cases with RHD*01EL.01/RHD*01N.01,and the remaining 4 cases were determined to have no RHD gene deletion by zygosity analysis and sequencing showed the presence of 1227G>A mutation loci.Conclusion:There is polymorphism in the molecular mechanism of RhD-D gene in Wuhu blood donor population,among which RHD*01EL.01 and RHD*15 are the main variants in this region.The results of this study provide a theoretical basis for RhD blood group identification and clinical blood transfusion in this region.
3.Efficacy of posterior reduction and fixation combined with pedicle subtraction osteotomy in the treatment of ankylosing spondylitis kyphotic deformity complicated by upper cervical spine injury
Jian ZHANG ; Fangsheng HE ; Jun SHENG ; Rui CAO ; Tao XU ; Weidong LIANG ; Bing WU ; Weibin SHENG
Chinese Journal of Trauma 2024;40(6):522-530
Objective:To investigate the efficacy of posterior reduction and fixation combined with pedicle subtraction osteotomy (PSO) in the treatment of ankylosing spondylitis (AS) kyphotic deformity complicated by upper cervical spine injury.Methods:A retrospective case series study was conducted to analyze the clinical data of 8 patients with AS kyphotic deformity complicated by upper cervical spine injury, who were admitted to First Affiliated Hospital of Xinjiang Medical University from October 2010 to December 2022. All were males, aged 32-58 years [(46.9±8.7)years]. Acute injury was found in 1 patient and chronic injuries in 7 patients, including 3 with cervicothoracic kyphotic deformity and 5 with thoracolumbar kyphotic deformity. Five patients were complicated by odontoid fractures, 1 by C 2-C 3 fracture and 2 by atlantoaxial dislocation. According to American Spinal Injury Association (ASIA) scale, 2 patients were with grade C, 3 with grade D, and 3 with grade E. The patients were treated with posterior upper cervical reduction and fixation combined with cervicothoracic PSO or thoracolumbar PSO respectively according to the location of the deformity. The operation time and intraoperative blood loss were recorded. Neck disability index (NDI), visual analogue scale (VAS), C 0-C 2 angle, C 1-C 2 angle, cervical lordosis angle (CL), head tilt angle (HT), chin-brow vertical angle (CBVA), cervical sagittal vertical axis (CSVA), and sagittal vertical axis (SVA) were compared before surgery, at 1 week and 3, 6, 12 months after surgery, and at the last follow-up. The healing of fractures and fusion of osteotomy site were recorded at 12 months after surgery. Recovery of neurological function was observed at the last follow-up. Incidence of complications was observed. Results:Patients were all followed up for 12-24 months [(17.0±5.4)months]. The operation time was 5.5-7.2 hours [(6.2±0.6)hours] and the intraoperative blood loss was 480-800 ml [(629.4±124.0)ml]. The NDI scores at 1 week and 3, 6, 12 months after surgery, and at the last follow-up were (14.6±2.6)points, (13.6±2.8)points, (12.8±2.4)points, (12.8±2.7)points, and (12.8±2.6)points respectively, significantly lower than (29.6±8.5)points preoperatively ( P<0.01). There were no significant differences in NDI scores at various time points after surgery ( P>0.05). The VAS scores were 2.0(1.0, 3.0)points, 1.5(1.0, 2.0)points, 0.5(0.0, 1.8)points, 0.5(0.0, 1.7)points, and 0.5(0.0, 1.8)points respectively, significantly lower than 3.5(3.0, 4.8)points preoperatively ( P<0.01). The VAS score at 3 months postoperatively was lower than that at 1 week postoperatively ( P<0.05), and the VAS score at 6 months postoperatively was lower than that at 3 months postoperatively ( P<0.05). There were no statistically significant differences in VAS scores at 6, 12 months postoperatively, and at the last follow-up ( P>0.05). There were no statistically significant differences between C 0-C 2 angle and C 1-C 2 angle preoperatively and at different time points postoperatively ( P>0.05). At 1 week and 3, 6, 12 months postoperatively and at the last follow-up, the CL values were -8.5(-5.3, -11.9)°, -8.6(-5.5, -11.9)°, -8.4(5.2, -12.1)°, -8.8(-5.6, -12.4)°, and -8.7(-5.3, -12.5)° respectively, significantly higher than 1.2(9.5, -4.8)° preoperatively ( P<0.01); the HT values were 6.1(4.5, 9.6)°, 6.1(4.3, 9.4)°, 6.0(4.2, 8.9)°, 6.0(4.2, 9.2)°, and 6.1(4.3, 9.2)° respectively, significantly lower than 17.0(10.3, 22.0)° preoperatively ( P<0.01); the CBVA values were (23.2±5.0)°, (23.1±4.8)°, (23.0±4.7)°, (23.1±4.7)°, and (23.1±4.9)° respectively, significantly lower than (44.1±9.8)° preoperatively ( P<0.01); the CSVA values were 5.2(4.2, 7.5)cm, 5.4(4.1, 7.1)cm, 4.7(4.0, 7.4)cm, 5.4(4.1, 7.0)cm, and 5.1(4.3, 6.5)cm respectively, significantly shorter than 9.0(7.8, 9.3)cm preoperatively ( P<0.01); the SVA values were 7.7(6.2, 13.7)cm, 7.5(6.0, 13.4)cm, 7.6(6.2, 13.2)cm, 7.4(6.3, 13.1)cm, and 7.5(6.2, 13.2)cm respectively, significantly shorter than 16.8(8.2, 27.2)cm preoperatively ( P<0.05). There were no statistically significant differences among CL, HT, CBVA, CSVA, and SVA values at different time points after surgery ( P>0.05). All the fractures healed at 12 months after surgery and Bridwell grade I healing was achieved at all the osteotomy sites. At the last follow-up, all the patients were classified as ASIA grade E, significantly improved compared with preoperatively ( P<0.01). One patient had transient C 8 nerve paralysis after surgery and recovered after 4 weeks′ treatment. The remaining patients did not develop any infection or internal fixation-related complications, such as broken rods, broken screws, or loose screws. Conclusion:For AS kyphosis deformity complicated with upper cervical injury, posterior reduction and fixation combined with cervicothoracic or thoracolumbar PSO can effectively promote functional recovery, relieve pain, maintain overall trunk balance, improve neurological symptoms, and reduce the incidence of complications.
4.Single posterior osteotomy for the treatment of rigid cervical spine deformities
Xiaoyu CAI ; Tao XU ; Maimaiti MAIERDAN· ; Rui CAO ; Chuanhui XUN ; Weidong LIANG ; Jian ZHANG ; Qiang DENG ; Maimaiti PULATI· ; Jun SHENG ; Ting WANG ; Weibin SHENG
Chinese Journal of Orthopaedics 2024;44(19):1265-1272
Objective:To evaluate the safety and effectiveness of single posterior osteotomy in the correction of rigid cervical spine deformities (CSD) and to explore the indications and key surgical techniques involved.Methods:A retrospective analysis was conducted on the clinical data of 9 patients with rigid CSD who underwent single posterior osteotomy correction between June 2012 and June 2023 in the Department of Spine Surgery at the First Affiliated Hospital of Xinjiang Medical University. The cohort comprised 4 males and 5 females, with a mean age of 19.8±27.2 years (range, 7-48 years). Among these, 5 cases were congenital CSD, 3 were post-tuberculosis deformities, and 1 was iatrogenic. Various coronal and sagittal alignment parameters were measured, including C 1, 2 angle, cervical lordosis (CL), structural scoliosis angle (SSA), structural kyphosis angle (SKA), head tilt (HT), C 2-C 7 sagittal vertical axis (CSVA), sagittal vertical axis (SVA), coronal balance distance (CBD), T 1 slope (T 1S), and the difference between T 1 tilt and cervical lordosis (T 1S-CL). Clinical outcomes were assessed using the neck disability index (NDI), visual analogue scale (VAS), and Scoliosis Research Society-22 questionnaire (SRS-22). Results:The average operation time was 273.9±76.1 min, with an average blood loss of 472.2±128.8 ml. All 9 patients were followed up for an average of 45.2±41.8 months (range, 12-116 months). A total of 7 patients underwent single-segment osteotomies (C 3, C 6 and C 7: 1 case each; C 5: 4 cases), and 2 patients underwent double-segment osteotomies (C 2 and C 7, C 3 and C 4). Four cases involved pedicle subtraction osteotomy (PSO), while 7 cases required vertebral column resection. The upper instrumented vertebra (UIV) was located at the occiput in 1 case and in the cervical spine in 8 cases. The lower instrumented vertebra (LIV) was located in the upper thoracic spine in 6 cases and in the cervical spine in 3 cases, with 2 of the latter cases having both UIV and LIV in the cervical spine. The average number of fused segments was 7.6±4.4 segments (range, 2-12 segments). All patients achieved successful bone fusion within an average of 8.8±3.2 months (range, 6-12 months). Preoperatively, the mean values for CL, SSA, SKA, HT, and CBD were 19.8° (17.2°, 30.5°), 27.4°(23.3°, 30.4°), 28.4°(25.6°, 30.1°), 9.0°(6.2°, 12.3°), and 18.5(12.3, 23.6) mm, respectively. Postoperative improvements were noted with values of -11.1°(-8.8°, -14.4°), 1.3°(0.8°, 1.6°), -11.1°(-8.6°, -14.5°), 1.6°(0.5°, 2.2°), and 9.4 (4.8-13.5) mm, respectively. At the final follow-up, these parameters were maintained, with values of -11.0°(-8.8°, -14.3°), 1.2°(0.8°, 1.5°), -11.0° (-8.6°, -14.3°), 1.5°(0.5°, 2.2°), and 9.4(4.8, 13.4) mm, respectively. Statistically significant improvements were observed between preoperative and postoperative measurements ( P<0.05), except for C 1, 2 angle, CSVA, SVA, T 1S, and T 1S-CL ( P>0.05). NDI and SRS-22 scores showed significant improvements postoperatively ( P<0.05), while VAS scores did not show a significant change ( P>0.05). Postoperative complications included transient nerve injury in two patients, one case of right central retinal artery occlusion, and one case of vertebral artery injury. Conclusion:This study confirms the safety and efficacy of single posterior osteotomy for treating rigid CSD of various etiologies. Standard PSO or modified techniques are effective for correcting cervical kyphosis, while hemivertebra resection and concave-side distraction are recommended for congenital scoliosis or kyphoscoliosis.
5.Comparison of three methods for establishing rat peri-implantitis model.
Ling Wei MENG ; Xue LI ; Sheng Han GAO ; Yue LI ; Rui Tao CAO ; Yi ZHANG ; Shao Xia PAN
Journal of Peking University(Health Sciences) 2023;55(1):22-29
OBJECTIVE:
To compare the efficiency and effect of establishing rat peri-implantitis model by traditional cotton thread ligation and local injection of Porphyromonas gingivalis lipopolysaccharide (LPS) around the implant, as well as the combination of the two methods.
METHODS:
Left side maxillary first molars of 39 male SD rats were extracted, and titanium implants were implanted after four weeks of healing. After 4 weeks of implant osseointegration, 39 rats were randomly divided into 4 groups. Cotton thread ligation (n=12), local injection of LPS around the implant (n=12), and the two methods combined (n=12) were used to induce peri-implantitis, the rest 3 rats were untreated as control group. All procedures were conducted under 5% isoflurane inhalation anesthesia. The rats were sacrificed 2 weeks and 4 weeks after induction through carbon dioxide asphyxiation method. The maxilla of the rats in the test groups were collected and marginal bone loss was observed by micro-CT. The gingival tissues around the implants were collected for further real time quantitative PCR (RT-qPCR) analysis, specifically the expression of tumor necrosis factor-alpha (TNF-α) as well as interleukin-1β (IL-1β). The probing depth (PD), bleeding on probing (BOP) and gingival index (GI) of each rat in the experimental group were recorded before induction of inflammation and before death.
RESULTS:
After 4 weeks of implantation, the osseointegration of implants were confirmed. All the three test groups showed red and swollen gums, obvious marginal bone loss around implants. After 2 weeks and 4 weeks of inflammation induction, PD, GI and BOP of the three test groups increased compared with those before induction, but only BOP was statistically significant among the three test groups (P < 0.05). At the end of 2 weeks of inflammation induction, marginal bone loss was observed at each site in the cotton thread ligation group and the combined group. At each site, the bone resorption in the combined group was greater than that in the cotton thread ligation group, but the difference was not statistically significant (P > 0.05), bone resorption was observed at some sites of some implants in LPS local injection group. At the end of 4 weeks of inflammation induction, marginal bone loss was observed at all sites in each group. The marginal bone loss in the cotton thread ligation group and the combined group was greater than that in the LPS local injection group, and the difference was statistically significant (P < 0.05). At the end of 2 weeks and 4 weeks of induction, the expression of TNF-α and IL-1β in the test groups were higher than those in the control group (P < 0.05).
CONCLUSION
Compared with local injection of LPS around the implant, cotton thread ligature and the two methods combined can induce peri-implantitis in rats better and faster.
Animals
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Male
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Rats
;
Alveolar Bone Loss/etiology*
;
Dental Implants/adverse effects*
;
Inflammation
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Lipopolysaccharides
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Peri-Implantitis/pathology*
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Rats, Sprague-Dawley
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Tumor Necrosis Factor-alpha
6.Genetic characteristics and survival analysis of 27 cases of juvenile myelomonocytic leukemia.
Juan Juan LI ; Tao HU ; Jun Hui LI ; Zhao Xia ZHANG ; Shun Qiao FENG ; Xiao Dong SHI ; Lei ZHANG ; Jinh CAO ; Ze Liang SONG ; Meng Ze HU ; Do Xiao ZHONG ; Mei YUE ; Wei FAN ; Rui Hong TANG ; Bing Han ZOU ; Rong LIU
Chinese Journal of Pediatrics 2023;61(1):56-60
Objective: To investigate the genetic and genomic profiling of juvenile myelomonocytic leukemia (JMML) and factors affecting its survival rate. Methods: Clinical characteristics, cytogenetics, molecular biology results and survival status of children with 27 JMML cases admitted to the Hematology Department of Children's Hospital, Capital Institute of Pediatrics from December 2012 to December 2021 were analyzed retrospectively, and the outcomes of the children were followed up. Kaplan-Meier method was used for survival analysis. Univariate analysis was used for analyzing factors affecting the overall survival (OS) rates of patients who received hematopoietic stem cell transplantation (HSCT). Log-Rank test was used for comparison of survival curves. Results: Among 27 JMML cases, there were 11 males and 16 females. The age of disease onset was 28 (11,52) months. There are 20 cases of normal karyotype, 4 cases of monosomy 7, 1 case of trisomy 8,1 case of 11q23 rearrangement and 1 case of complex karyotype. A total of 39 somatic mutations were detected.Those involved in RAS signal pathway were the highest (64%(25/39)), among which PTPN11 mutation was the most frequent (44% (11/25)). A total of 17 cases (63%) received HSCT, 8 cases (30%) did not receive HSCT, and 2 cases (7%) lost follow-up. For children receiving transplantation, the follow-up time after transplantation was 47 (11,57) months. The 1-year OS rate of high-risk transplantation group (17 cases) and high-risk non transplantation group (6 cases) was (88±8)% and (50±20)% respectively, with a statistically significant difference (χ2=5.01, P=0.025). The 5-year OS rate of the high-risk transplantation group was (75±11)%. The survival time of those who relapsed or progressed to acute myeloid leukemia after transplantation was significantly shorter than that of those who did not relapse (χ2=6.80, P=0.009). The OS rate of patients with or without PTPN11 mutation was (81±12) % and (67±19)% respectively (χ2=0.85, P=0.356). Conclusions: The main pathogenesis involved in JMML is gene mutation related to RAS signaling pathway, and the most common driver gene of mutation is PTPN11. Allogeneic HSCT can significantly improve the survival rate of high-risk JMML patients. The recurrence or progression after transplantation was related to poor prognosis.
Male
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Female
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Child
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Humans
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Child, Preschool
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Leukemia, Myelomonocytic, Juvenile/therapy*
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Retrospective Studies
;
Survival Analysis
;
Mutation
;
Hematopoietic Stem Cell Transplantation
7.Analysis of allergen profiles in dust mite-sensitive allergic rhinitis patients in Dalian
Zhijun HONG ; Rui LI ; Tao JIANG ; Di ZHAO ; Weili LU ; Xianhua LI ; Zhiwei CAO
Journal of China Medical University 2023;52(12):1119-1124
Objective To investigate the allergen profiles of dust mite-sensitive allergic rhinitis patients in Dalian,and to lay the foun-dation for precise prevention and control of allergic rhinitis.Methods Clinical data of allergic rhinitis patients treated at Affiliated Zhongshan Hospital of Dalian University from January 2015 to December 2022 were collected.The allergen distribution spectrums were compared between different groups designated according to sex,age,allergen reaction level,combination of other allergens,and testing time.Results A total of 1 330 allergic rhinitis patients were included,among whom the total detection rate of dust mite allergy was 60.83%(n= 809),with 330(40.79%)of these having dust mite sensitization alone and 479(59.21%)having multiple sensitization.There were many kinds of allergens in multiple sensitization.Among those with dust mite allergy,all 20 combined allergens detected in this group were analyzed,and mugwort,cat hair,and common rinea grass were the top three allergens in combined sensitization,accounting for 64.52%.The number of other allergens combined with dust mite was mainly 1-3 species(88.73%),and a maximum of 10 allergens were simultaneously present.Patients with 1-3 other combined sensitivities were mainly reactive to respiratory allergens,and those with 4 or more allergens essentially had joint sensitization to respiratory and food allergens.As for the allergen reaction level,the dust mite sensitivity reaction was relatively strong,with grade 3 or above accounting for 61.19%.Except for mugwort,the other combined allergens elicited mainly grade 1 and grade 2 reactions.The detection rates of dust mite allergy were 61.84%in male patients and 59.94%in female patients,with no statistical difference between the sexes(χ2=4.000,P= 0.261).The detection rate of dust mite sensitization was highest in the group aged<20 years and decreased with age(χ2=69.984,P<0.001).Dust mite-sensitive allergic rhinitis mainly occurred from August to October,and the detection rate of dust mite sensitization was the highest in October,reaching 80.16%.Conclusion The dust mite sensitization rate in patients with allergic rhinitis in the Dalian area is relatively high,and multiple sensitization is more common.Combinations of respiratory allergens mainly involve 1-3 types,and mugwort,cat hair,and common ragweed are the most common aller-gens combined with dust mite.Therefore,prevention and control of allergic rhinitis should focus on the characteristics of dust mite allergy in this region.
8.Medication law and mechanism of traditional Chinese medicine in prevention and treatment of epidemic diseases: based on traditional Chinese medicine theory of cold pestilence.
Ze-Yu LI ; Er-Wei HAO ; Rui CAO ; Si LIN ; Shu-Ying CHEN ; Xian-Ting HUANG ; Wan-Ru XU ; Xiao-Tao HOU ; Jia-Gang DENG
China Journal of Chinese Materia Medica 2022;47(17):4765-4777
Epidemic diseases have caused huge harm to the society. Traditional Chinese medicine(TCM) has made great contributions to the prevention and treatment of them. It is of great reference value for fighting diseases and developing drugs to explore the medication law and mechanism of TCM under TCM theory. In this study, the relationship between the TCM theory of cold pestilence and modern epidemic diseases was investigated. Particularly, the the relationship of coronavirus disease 2019(COVID-19), severe acute respiratory syndrome(SARS), and influenza A(H1 N1) with the cold pestilence was identified and analyzed. The roles of TCM theory of cold pestilence in preventing and treating modern epidemic diseases were discussed. Then, through data mining and textual research, prescriptions for the treatment of cold pestilence were collected from major databases and relevant ancient books, and their medication laws were examined through analysis of high-frequency medicinals and medicinal pairs, association rules analysis, and cluster analysis. For example, the prescriptions with high confidence levels were identified: "Glycyrrhizae Radix et Rhizoma-Bupleuri Radix-Paeoniae Radix Alba" "Glycyrrhizae Radix et Rhizoma-Pinelliae Rhizoma-Bupleuri Radix", and TCM treatment methods with them were analyzed by clustering analysis to yield the medicinal combinations: "Zingiberis Rhizoma-Aconiti Lateralis Radix Praeparata-Ginseng Radix et Rhizoma" "Poria-Atractylodis Macrocephalae Rhizoma" "Cinnamomi Ramulus-Asari Radix et Rhizoma" "Citri Reticulatae Pericarpium-Perillae Folium" "Pinelliae Rhizoma-Magnoliae Officinalis Cortex-Atractylodis Rhizoma" "Paeoniae Radix Alba-Angelicae Sinensis Radix-Glycyrrhizae Radix et Rhizoma-Bupleuri Radix-Scutellariae Radix-Rhizoma Zingiberis Recens" "Ephedrae Herba-Armeniacae Semen Amarum-Gypsum Fibrosum" "Chuanxiong Rhizoma-Notopterygii Rhizoma et Radix-Angelicae Dahuricae Radix-Platycodonis Radix-Saposhnikoviae Radix". Then, according to the medication law for cold pestilence, the antiviral active components of medium-frequency and high-frequency medicinals were retrieved. It was found that these components exerted the antiviral effect by inhibiting virus replication, regulating virus proteins and antiviral signals, and suppressing protease activity. Based on network pharmacology, the mechanisms of the medicinals against severe acute respiratory syndrome coronavirus(SARS-CoV), 2019 novel coronavirus(2019-nCoV), and H1 N1 virus were explored. It was determined that the key targets were tumor necrosis factor(TNF), endothelial growth factor A(VEGFA), serum creatinine(SRC), epidermal growth factor receptor(EGFR), matrix metalloproteinase 9(MMP9), mitogen-activated protein kinase 14(MAPK14), and prostaglandin-endoperoxide synthase 2(PTGS2), which were involved the mitogen-activated protein kinase(MAPK) pathway, advanced glycation end-products(AGE)-receptor for AGE(RAGE) pathway, COVID-19 pathway, and mTOR pathway. This paper elucidated the medication law and mechanism of TCM for the prevention and treatment of epidemic diseases under the guidance of TCM theory of cold pestilence, in order to build a bridge between the theory and modern epidemic diseases and provide reference TCM methods for the prevention and treatment of modern epidemic diseases and ideas for the application of data mining to TCM treatment of modern diseases.
Aconitum
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Antiviral Agents
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COVID-19/epidemiology*
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Calcium Sulfate
;
Communicable Disease Control
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Communicable Diseases/virology*
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Creatinine
;
Cyclooxygenase 2
;
Drugs, Chinese Herbal/therapeutic use*
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Endothelial Growth Factors
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Epidemics/prevention & control*
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ErbB Receptors
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Humans
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Matrix Metalloproteinase 9
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Medicine, Chinese Traditional
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Mitogen-Activated Protein Kinase 14
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Pinellia
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SARS-CoV-2
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TOR Serine-Threonine Kinases
;
Tumor Necrosis Factors
;
COVID-19 Drug Treatment
9.Action Mechanism of Chinese Medicine Polysaccharides in Prevention and Treatment Diabetes and Its Complications:A Review
Feng CHEN ; Fan ZHANG ; Er-wei HAO ; Liu-ying MO ; Jin-ling XIE ; Ze-yu LI ; Xing-yuan WANG ; Rui CAO ; Xiao-tao HOU ; Jia-gang DENG
Chinese Journal of Experimental Traditional Medical Formulae 2022;28(12):256-266
Diabetes is a metabolic disease mainly characterized by hyperglycemia due to inadequate insulin secretion. And persistent hyperglycemia can cause chronic damage or dysfunction of eyes, kidneys, heart, blood vessels and nerves. Polysaccharides are high molecular carbohydrates polymerized by glycosidic bonds from more than 10 monosaccharide molecules of the same or different types. They have the advantages of wide sources, high safety and low toxic and so on. As one of the important effective components of traditional Chinese medicine, polysaccharides have biological activities such as immune regulation, anti-oxidation, anti-tumor, lowering blood sugar and so on. The structure is directly related to biological activities, and the advanced structure of polysaccharides is based on the primary structure. Exploring the primary structure of polysaccharides is the key task of lowering blood sugar and improving diabetic complications. This paper summarizes the monosaccharide composition of the primary structure of Chinese medicine polysaccharides, and the mechanism of Chinese medicine polysaccharides improving diabetes is emphasized by increasing the secretion and release of insulin, increasing the islet β cell number, upregulating insulin receptor level, improving glucose and lipid metabolism, inhibiting inflammatory response, improving oxidative stress and regulating phosphatidylinositol-3-kinase(PI3K)/protein kinase B (Akt), mitogen activated protein kinase, cyclic adenosine monophosphate(cAMP)/protein kinase A(PKA) and adenosine monophosphate activated protein kinase(AMPK) signaling pathways. At the same time, we also summarized the prevention and treatment of Chinese medicine polysaccharides in diabetic nephropathy, diabetic cardiomyopathy, diabetic ophthalmopathy and diabetic peripheral neuropathy, in order to provide a theoretical basis for new drug development and clinical application of Chinese medicine polysaccharides in the intervention of diabetes and its complications.
10.Effect of Toddalia asiatica Alcohol Extract on Apoptosis of Non-small Cell Lung Cancer A549 Cells Based on Autophagy Pathway
Lan HONG ; Hao WU ; Rui TIAN ; Jia FENG ; Ziming HOU ; Mengjie TIAN ; Bonan TAO ; Xi SHEN ; Chunyu CAO ; Lin YUAN
Chinese Journal of Experimental Traditional Medical Formulae 2022;28(20):78-85
ObjectiveTo study the effects of Toddalia asiatica alcohol extract on autophagy and apoptosis of non-small cell lung cancer A549 cells, and to explore its possible mechanism. MethodA549 cells were cultured in vitro. Cell counting kit-8 (CCK-8) was used to detect the proliferation of A549 cells, and cell survival rate was calculated to screen the drug concentration. The apoptosis in each dose group and that after the use of 3-methyladenine (3-MA), an autophagy inhibitor, were detected by flow cytometry combined with Annexin V-FITC/PI double staining. Western blot was used to detect the expression levels of apoptosis-related proteins such as B cell lymphocytoma-2(Bcl-2), Bcl-2-associated X protein(Bax), microtubule-associated protein 1 light chain 3 (LC3), cleaved cysteinyl aspartate-specific protease-3 (cleaved Caspase-3), activated poly (Adenosine diphosphate) ribonucleotide polymerase (cleaved PARP1), PARP1, activated death activator (t-Bid), Bid, and ubiquitin-binding protein p62 in each group and those after the use of 3-MA. ResultCompared with the conditions in the control group, the cell survival rate in 0.25 g·L-1 group (P<0.05), and 0.5, 1, 2, 4 g·L-1 groups (P<0.01) was decreased after 24 h intervention. Additionally, the cell survival rate was reduced in a concentration-dependent manner at 48 h and it was less than 10% at 4 g·L-1 (P<0.01). Compared with the conditions in the control group, the total apoptosis rate in 0.5 g·L-1 group was increased (P<0.05), and the apoptosis rate in 1 and 2 g·L-1 groups was also increased (P<0.01). Compared with the 2 g·L-1 group and 3-MA group, the 3-MA combined with T. asiatica alcohol extract had significantly decreased apoptosis rate (P<0.01). Compared with the conditions in the control group, elevated expression of pro-apoptotic proteins cleaved PARP1, Bax and t-Bid in 1 and 2 g·L-1 groups (P<0.05, P<0.01), and reduced expression of Bid in the 2 g·L-1 group (P<0.01) were found. Compared with the conditions in the control group, the expression of anti-apoptotic protein Bcl-2 (P<0.05, P<0.01) and the level of p62 (P<0.01) were down-regulated in 0.5, 1, 2 g·L-1 groups, while the level of LC3 Ⅱ protein was up-regulated (P<0.01), with certain concentration dependence. ConclusionT. asiatica alcohol extract could significantly inhibit the proliferation of A549 cells, which might be related to promoting autophagy and inducing apoptosis.

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