1.Clinical Observation of Acupuncture Combined with Acupoint Catgut Embedding Therapy on Back-Shu and Front-Mu Points and External Application on Shenque Point for Premature Ovarian Failure
Xue-Juan ZHAO ; Hong-Wei YANG ; Xiu-Ming LIU ; Rui-Yang SHEN ; Mei-Xia WEI ; Gui-Yun TAN
Journal of Guangzhou University of Traditional Chinese Medicine 2024;41(11):2906-2911
		                        		
		                        			
		                        			Objective To observe the clinical efficacy of acupuncture combined with acupoint catgut embedding therapy on back-shu and front-mu points and external application on shenque(RN8)point for premature ovarian failure(POF).Methods A total of 62 patients with POF were randomly divided into the observation group and the control group,with 31 patients in each group.The observation group was treated with acupuncture combined with acupoint catgut embedding therapy on back-shu and front-mu points and external application on shenque point,and the control group was treated with hormone replacement therapy.After three months of treatment,the clinical efficacy of the two groups was evaluated,and the changes in the traditional Chinese medicine(TCM)syndrome scores,as well as the ovarian volume,number of antral follicle,and antral follicle diameter of the patients in the two groups before and after treatment were observed.The changes of serum follicle stimulating hormone(FSH),luteinizing hormone(LH)and estradiol(E2)levels before and after treatment were compared between the two groups.Results(1)The total effective rate was 93.55%(29/31)in the observation group and 80.64%(25/31)in the control group.The efficacy of the observation group was significantly superior to that of the control group,and the difference was statistically significant(P<0.05).(2)After treatment,the serum FSH,LH and E2 levels of patients in the two groups were significantly improved(P<0.05),and the improvement in the observation group was significantly superior to that in the control group,with statistically significant differences(P<0.05).(3)After treatment,ovarian volume,number of antral follicle,and antral follicle diameter were significantly improved in the two groups(P<0.05),and the improvement in the observation group was significantly superior to that in the control group,and the difference was statistically significant(P<0.05).Conclusion The treatment of POF with acupuncture combined with acupoint catgut embedding therapy on back-shu and front-mu points and external application on shenque point can significantly improve the clinical symptoms of the patients,conducive to the recovery of ovarian function,and significantly improve the sex hormone levels of the patients,with precise clinical efficacy.
		                        		
		                        		
		                        		
		                        	
2.Vascularization of intravitreal injection of Conbercept in the treatment of retinopathy of prematurity
Zheng FU ; Wei-Wei XIONG ; Xue YIN ; Zhi-Bin HONG ; Xiu-Ting LI ; Xi-Xiang WEI ; Wei-Fang FANG ; Ya-Juan CHEN ; Jing-Wei LIN ; Yan-Hui ZHU ; Yi-Hua ZHU ; Hui YANG
International Eye Science 2023;23(3):363-368
		                        		
		                        			
		                        			 AIM: To evaluate retinal vascularization caused by the intravitreal injection of Conbercept in the treatment of a series of retinopathy of prematurity(ROP)cases in Type Ⅰ(threshold and pre-threshold period)and aggressive ROP(A-ROP).METHODS: The data of 34 ROP cases(67 eyes)treated by intravitreal injection of Conbercept(IVC)in the ophthalmology department of the Xiamen Children's Hospital from July 2017 to March 2020 were retrospectively analyzed. Reactivation, which refers to recurrence of acute phase features, occurred at any stage of the disease in the presence or absence of other diseases. RESULT: The average gestational age of the 34 children was 28.82±2.32wk. The average birth weight was 1155.18±398.22g. The lesion zone of 19 cases(37 eyes)was Zone Ⅰ. In 10 cases(20 eyes), the lesion was in Zone Ⅱ, and in 5 cases(10 eyes), the lesion was in the posterior Zone Ⅱ. The total effective rate of disease control in ROP children treated with once IVC was 73.1%(49/67), and the vascularization of Zone Ⅱ was completed. The patients showed variable changes in the vascularization in Zone Ⅲ. For the patients who received one treatment and did not reactivate, the average rate of Type Ⅰ vascularization of ROP was 9.11±2.49wk, and the A-ROP was 13.40±4.04wk. The rate of A-ROP vascularization in Zone Ⅱ was significantly longer compared to Type Ⅰ.CONCLUSION: IVC effectively completes vascularization in Zone Ⅱ. 
		                        		
		                        		
		                        		
		                        	
3.Molecular genetic characteristics of a family which coinheritance of rare-88 C>G (HBB:c.-138 C>G) β-thalassemia mutation with α-thalassemia and review of the literature.
Wei LI ; Li Ting CHEN ; Ying YU ; Jie WANG ; Cui Yun LI ; Tian E CAI ; Chun Jiao LU ; Dong Xue LI ; Xiu Juan TIAN
Chinese Journal of Preventive Medicine 2023;57(2):253-258
		                        		
		                        			
		                        			The molecular genetic characteristics of a family with rare -88 C>G (HBB: c.-138 C>G) β-thalassemia gene mutation were studied using cohort study. The cohort study was conducted from June to August 2022 by Prenatal Diagnosis Center of Sanya Women and Children's Hospital Managed by Shanghai Children's Medical Center. The phenotype and genotype were analyzed by hematological cytoanalyzer, automatic electrophoretic analysis system, and next-generation sequencing (NGS). And then, Sanger sequencing was used to verify the rare gene results. The results showed that the proband, her father, her uncle and her younger male cousin had discrete microcytosis (MCV 70.1 fl, 71.9 fl, 73.1 fl and 76.6 fl, respectively) and hypochromia (MCH 21.5 pg,22.0 pg,22.6 pg and 23.5 pg, respectively), elevated hemoglobin A2 level (5.3%, 5.4%, 5.4% and 5.5%, respectively), slightly elevated or normal fetal hemoglobin (Hb F), but no anemia. The proband was identified to have co-inherited ɑ-thalassemia (Hb Westmead gene heterozygous mutation, ɑwsɑ/ɑɑ) and β-thalassemia with a rare -88 C>G (HBB: c.-138 C>G) heterozygous mutation (β-88 C>G/βN). Her mother had the same α-thalassemia as the proband. Her father, her uncle and her younger male cousin had the same rare -88 C>G heterozygous mutations as the proband. While her grandmother and younger brother were not carrier of thalassemia. In conclusion, 4 cases of rare -88 C>G(HBB:c.-138 C>G) heterozygous mutation had been detected in a Chinese family. Carriers of this beta-thalassemia are clinically asymptomatic. This study enriches the knowledge of the thalassemia mutation spectrum in Chinese people and provides valuable information for genetic counseling, prenatal diagnosis, and prevention of thalassemia, providing a scientific basis for improving the quality of birth population and preventing birth defects.
		                        		
		                        		
		                        		
		                        			Female
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Male
		                        			;
		                        		
		                        			alpha-Thalassemia/genetics*
		                        			;
		                        		
		                        			beta-Globins/genetics*
		                        			;
		                        		
		                        			beta-Thalassemia/diagnosis*
		                        			;
		                        		
		                        			China
		                        			;
		                        		
		                        			Cohort Studies
		                        			;
		                        		
		                        			Genotype
		                        			;
		                        		
		                        			Molecular Biology
		                        			;
		                        		
		                        			Mutation
		                        			
		                        		
		                        	
4.Post-stroke dysphagia treated with four-step acupuncture therapy for opening orifices and benefiting throat combined with neuromuscular electrical stimulation: a randomized controlled trial.
Xue CAO ; Hong-Juan ZHANG ; Gang XU ; Xing-Xing MA ; Xiu-Ling PU ; Wen-Juan MA ; Di ZHANG ; Zhao-di TIAN ; Wei-Hua ZHANG
Chinese Acupuncture & Moxibustion 2023;43(6):611-614
		                        		
		                        			OBJECTIVE:
		                        			To observe the clinical efficacy on post-stroke dysphagia treated with four-step acupuncture therapy for opening orifices and benefiting throat combined with neuromuscular electrical stimulation.
		                        		
		                        			METHODS:
		                        			Sixty patients with post-stroke dysphagia were randomly divided into an observation group and a control group, with 30 cases in each group. The neuromuscular electrical stimulation was adopted in the control group. Besides the treatment as the control group, in the observation group, the four-step acupuncture therapy for opening orifices and benefiting throat was supplemented. Step 1: the three areas of scalp acupuncture on the affected side were stimulated. Step 2: pricking method was operated on the posterior pharyngeal wall. Step 3: bleeding technique was operated at Jinjin (EX-HN 12) and Yuye (EX-HN 13). Step 4: deep insertion of needle was operated at three-pharynx points. The needles were retained for 30 min at the three areas of scalp acupuncture and the three-pharynx points. The intervention of each group was delivered once daily, 6 times a week, at the interval of 1 day. One course of treatment was 1 week and 4 successive courses were required. The rating of Kubota water swallow test, the score of standardized swallowing assessment (SSA) and the rating of Rosenbek penetration- aspiration scale (PAS) were observed before and after treatment in patients of the two groups. The incidence of clinical complications and clinical efficacy were compared between the two groups.
		                        		
		                        			RESULTS:
		                        			Compared with those before treatment, the rating of Kubota water swallow test, the scores of SSA and the rating of PAS of patients in the two groups were decreased after treatment (P<0.01), and the values of the observation group were lower than those of the control group after treatment (P<0.05). The incidence of clinical complications in the observation group was 13.3% (4/30), lower than 36.7% (11/30) in the control group (P<0.05). The total effective rate in the observation group was 93.3% (28/30), which was better than 70.0% (21/30) in the control group (P<0.05).
		                        		
		                        			CONCLUSION
		                        			The four-step acupuncture therapy for opening orifices and benefiting throat combined with neuromuscular electrical stimulation can improve the swallowing function of patients with post-stroke dysphagia and reduce the incidence of clinical complications.
		                        		
		                        		
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Pharynx
		                        			;
		                        		
		                        			Deglutition Disorders/therapy*
		                        			;
		                        		
		                        			Acupuncture Therapy
		                        			;
		                        		
		                        			Stroke/complications*
		                        			;
		                        		
		                        			Water
		                        			;
		                        		
		                        			Electric Stimulation
		                        			
		                        		
		                        	
5.Effect of origin, tree age, and harvesting time on content of flavonoids and terpene lactones in Ginkgo Folium.
Fu-Juan SHI ; Chao-Jie YANG ; Xiu-Fen CHEN ; Mi-Ji-Ti MAIHELIYA ; Miao-Miao HUANG ; Xue-Jiao WEI ; Kun WANG ; Chun-Sheng LIU ; Yao-Jun YANG
China Journal of Chinese Materia Medica 2022;47(15):4055-4065
		                        		
		                        			
		                        			The content of total flavonol glycosides in Ginkgo Folium in the planting bases was determined by high performance liquid chromatography(HPLC).The samples were extracted by reflux with methanol-25% hydrochloric acid.The HPLC conditions were as follows: Agilent ZORBAX SB-C_(18) column(4.6 mm×250 mm, 5 μm), isocratic elution with mobile phase of 0.4% phosphoric acid solution-methanol(45∶55), flow rate of 1 mL·min~(-1), column temperature of 30 ℃, detection wavelength of 360 nm, and injection vo-lume of 10 μL.A method for the determination of terpene lactones in Ginkgo Folium was established based on ultra-high performance liquid chromatograph-triple-quadrupole/linear ion-trap tandem mass spectrometry(UPLC-QTRAP-MS/MS).The UPLC conditions were as below: gradient elution with acetonitrile-0.1% formic acid, flow rate of 0.2 mL·min~(-1), column temperature of 30 ℃, sample chamber temperature of 10 ℃, and injection volume of 10 μL.The ESI~+and multiple reaction monitoring(MRM) were adopted for the MS.The above methods were used to determine the content of total flavonol glycosides and terpene lactones in 99 batches of Ginkgo Folium from 6 planting bases, and the results were statistically analyzed.The content of flavonoids and terpene lactones in Ginkgo Folium from different origins, from trees of different ages, harvested at different time, from trees of different genders, and processed with different methods was compared.The results showed that the content of total flavonol glucosides in 99 Ginkgo Folium samples ranged from 0.38% to 2.08%, and the total content of the four terpene lactones was in the range of 0.03%-0.87%.The method established in this study is simple and reliable, which can be used for the quantitative analysis of Ginkgo Folium.The research results lay a basis for the quality control of Ginkgo Folium.
		                        		
		                        		
		                        		
		                        			Chromatography, High Pressure Liquid/methods*
		                        			;
		                        		
		                        			Flavonoids/analysis*
		                        			;
		                        		
		                        			Flavonols
		                        			;
		                        		
		                        			Ginkgo biloba
		                        			;
		                        		
		                        			Glycosides/analysis*
		                        			;
		                        		
		                        			Lactones/analysis*
		                        			;
		                        		
		                        			Methanol
		                        			;
		                        		
		                        			Plant Leaves/chemistry*
		                        			;
		                        		
		                        			Tandem Mass Spectrometry/methods*
		                        			;
		                        		
		                        			Terpenes/analysis*
		                        			;
		                        		
		                        			Trees
		                        			
		                        		
		                        	
6.Early changes within the lymphocyte population are associated with the long term prognosis in severely injured patients.
Fu Zheng GUO ; Xiu Juan ZHAO ; Jiu Xu DENG ; Zhe DU ; Tian Bing WANG ; Feng Xue ZHU
Journal of Peking University(Health Sciences) 2022;54(3):552-556
		                        		
		                        			OBJECTIVE:
		                        			To investigate the relationship between early lymphocyte responses and the prognosis in severely injured patients.
		                        		
		                        			METHODS:
		                        			Consecutive patients with severe trauma who were treated in Peking University People's Hospital Trauma Medical Center between June 2017 and June 2020 were enrolled in this restropective chart-review study. According to the responses of lymphocyte after severe injury, the patients were divided into three groups, group 1: lymphopenia-returned to normal; group 2: persistent lymphopenia; group 3: never lymphopenic, and the outcome of 28 d were recorded. Clinical data such as gender, age, base excess, mechanism of injury, Glasgow coma scale (GCS), injury severity score (ISS) and massive blood transfusion were collected. Perform statistical analysis on the collected clinical data to understand the trend of lymphocyte changes in early trauma and the relationship with prognosis. In order to eliminate the interference of age, stratification was carried out according to whether the age was ≥ 65 years old, in different age groups, they were grouped according to whether the length of stay was ≥ 28 d, and the relationship between lymphocyte trend and length of stay was discussed.
		                        		
		                        			RESULTS:
		                        			A total of 83 patients were included, 66 males and 17 females. The main injury mechanisms were traffic accident injuries and high-altitude fall injuries. The average ISS was (30±11) points. 65 patients had lymphopenia on the day of injury, 32 of them returned to normal on the 5th day, and the rest did not recover; the other 18 patients had normal lymphocyte levels after injury. Patients which are failure to normalize lymphopenia within the first 5 days following admission was related with the long hospitalization time and higher 28 d mortality rate. After further stratification by age, failure to normalize lymphopenia within the first 5 days following admission in the elderly group (age ≥65 years) was a risk factor for prolonged hospital stay (≥28 d), P=0.04. While in younger group, a high level of neutrophils within the first 5 d following admission was a risk factor for bad outcome.
		                        		
		                        			CONCLUSION
		                        			A failure to normalize lymphopenia in severely injured patients is associated with significantly higher mortality and longer hospital stay. This study reveals lymphocytes can be used as a reliable indicator for the prognostic evaluation.
		                        		
		                        		
		                        		
		                        			Aged
		                        			;
		                        		
		                        			Female
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Injury Severity Score
		                        			;
		                        		
		                        			Length of Stay
		                        			;
		                        		
		                        			Lymphopenia/etiology*
		                        			;
		                        		
		                        			Male
		                        			;
		                        		
		                        			Prognosis
		                        			;
		                        		
		                        			Retrospective Studies
		                        			
		                        		
		                        	
7.Analysis of factors associated with the structure of the gut microbial community in HIV/AIDS patients in some areas of Henan province.
Jia LIU ; Jie GENG ; Jia Qi LIU ; Xiu Juan XUE ; Jiang Zhou YAN ; Yuan YUAN ; Xiang Bing ZHANG ; Chun Hua LIU ; Guo Long ZHANG
Chinese Journal of Epidemiology 2022;43(4):566-571
		                        		
		                        			
		                        			Objective: To investigate the related factors associated with the structure of the gut microbial community in HIV infection/AIDS cases (HIV/AIDS) in Henan province. Methods: The convenience sampling method was used to select 122 cases who were receiving Antiviral Treatment (ART) or ART-naive in Henan. Whole blood and stool specimens were collected. Genomic DNA of stool samples was extracted, and the V3-V4 hypervariable regions of the 16S rRNA gene were sequenced using Illumina NovaSeq 6000 high-throughput sequencing system. The analysis was performed mainly at the genus level, and the 30 genera with the highest abundance were selected as a measure of the gut microbial community structure. The correlation between community structure and related factors was analyzed using redundancy analysis and Envfit function. Results: 122 cases were finally completed sequencing and analysis, the average BMI was (23.62±2.78) kg/m2 and the average age was (47±13) years. Among them, male accounted for 66.39% (81/122), and heterosexual transmission route constituted the largest ratio, accounting for 51.64% (63/122). 36 cases were treatment naive (29.51%, 36/122). The top five dominant genera of the total population (122 cases) were Prevotella, Roseburia, Megamonas, Bacteroides and Faecalibacterium and the top five dominant genera of the ART population (86 cases) were Prevotella, Megamonas, Bacteroides, Roseburia and Faecalibacterium. The top five dominant genera of the ART-naive population (36 cases) appeared as Prevotella, Faecalibacterium, Roseburia, Bacteroides and Megamonas. In the total population, ART (P<0.001) was the most significant factors of community structure. Other significant factors were: duration of diagnosis (P=0.009), viral load (P=0.022) and anti-HCV (P=0.018). ART was positively correlated with Megamonas and negatively correlated with Prevotella, Roseburia and Faecalibacterium, while the other three factors of duration of diagnosis, viral load and anti-HCV were positively correlated with Prevotella, Roseburia and Faecalibacterium and negatively correlated with Megamonas. In the ART-naive population, duration of diagnosis (P=0.003) were the factors significantly associated with community structure. Duration of diagnosis was positively correlated with Roseburia, Faecalibacterium, Megamonas and Prevotella and negatively correlated with Bacteroides. Conclusion: ART and duration of diagnosis were factors significantly associated with gut microbial community structure and had a significant impact on multiple high-abundance genera.
		                        		
		                        		
		                        		
		                        			Acquired Immunodeficiency Syndrome/epidemiology*
		                        			;
		                        		
		                        			Adult
		                        			;
		                        		
		                        			Gastrointestinal Microbiome/genetics*
		                        			;
		                        		
		                        			HIV Infections/epidemiology*
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Male
		                        			;
		                        		
		                        			Microbiota
		                        			;
		                        		
		                        			Middle Aged
		                        			;
		                        		
		                        			RNA, Ribosomal, 16S/genetics*
		                        			
		                        		
		                        	
8.Ferroptosis of airway epithelial cells in asthma: current and future
Xue-mei CHEN ; Juan LIANG ; Xiu-ling SONG ; Xiao-hua LIU ; Chu-peng XUE ; Yu-ge HUANG ; Wen LI
Acta Pharmaceutica Sinica 2022;57(6):1614-1620
		                        		
		                        			
		                        			 Ferroptosis is a novel cell death mode proposed in recent years, which is characterized by intracellular iron-dependent lipid peroxidation. Its mechanisms include lipid peroxidation, iron accumulation and the imbalance of antioxidant system. The crosstalk between ferroptosis and asthma is gradually deepening. Elucidating the specific mechanism of ferroptosis in regulating asthma is helpful to broaden the understanding of the pathology of asthma. This paper expounds the role of ferroptosis in airway epithelial cells in the occurrence and development of asthma from three perspectives: lipid peroxidation, iron accumulation and the imbalance of antioxidant system, hoping to find new targets and strategies for asthma treatment. 
		                        		
		                        		
		                        		
		                        	
9.Clinical treatment outcomes and their changes in extremely preterm twins: a multicenter retrospective study in Guangdong Province, China.
Bi-Jun SHI ; Ying LI ; Fan WU ; Zhou-Shan FENG ; Qi-Liang CUI ; Chuan-Zhong YANG ; Xiao-Tong YE ; Yi-Heng DAI ; Wei-Yi LIANG ; Xiu-Zhen YE ; Jing MO ; Lu DING ; Ben-Qing WU ; Hong-Xiang CHEN ; Chi-Wang LI ; Zhe ZHANG ; Xiao RONG ; Wei SHEN ; Wei-Min HUANG ; Bing-Yan YANG ; Jun-Feng LYU ; Hui-Wen HUANG ; Le-Ying HUO ; Hong-Ping RAO ; Wen-Kang YAN ; Xue-Jun REN ; Yong YANG ; Fang-Fang WANG ; Dong LIU ; Shi-Guang DIAO ; Xiao-Yan LIU ; Qiong MENG ; Yu WANG ; Bin WANG ; Li-Juan ZHANG ; Yu-Ge HUANG ; Dang AO ; Wei-Zhong LI ; Jie-Ling CHEN ; Yan-Ling CHEN ; Wei LI ; Zhi-Feng CHEN ; Yue-Qin DING ; Xiao-Yu LI ; Yue-Fang HUANG ; Ni-Yang LIN ; Yang-Fan CAI ; Sha-Sha HAN ; Ya JIN ; Guo-Sheng LIU ; Zhong-He WAN ; Yi BAN ; Bo BAI ; Guang-Hong LI ; Yue-Xiu YAN
Chinese Journal of Contemporary Pediatrics 2022;24(1):33-40
		                        		
		                        			OBJECTIVES:
		                        			To investigate the clinical treatment outcomes and the changes of the outcomes over time in extremely preterm twins in Guangdong Province, China.
		                        		
		                        			METHODS:
		                        			A retrospective analysis was performed for 269 pairs of extremely preterm twins with a gestational age of <28 weeks who were admitted to the department of neonatology in 26 grade A tertiary hospitals in Guangdong Province from January 2008 to December 2017. According to the admission time, they were divided into two groups: 2008-2012 and 2013-2017. Besides, each pair of twins was divided into the heavier infant and the lighter infant subgroups according to birth weight. The perinatal data of mothers and hospitalization data of neonates were collected. The survival rate of twins and the incidence rate of complications were compared between the 2008-2012 and 2013-2017 groups.
		                        		
		                        			RESULTS:
		                        			Compared with the 2008-2012 group, the 2013-2017 group (both the heavier infant and lighter infant subgroups) had lower incidence rates of severe asphyxia and smaller head circumference at birth (P<0.05). The mortality rates of both of the twins, the heavier infant of the twins, and the lighter infant of the twins were lower in the 2013-2017 group compared with the 2008-2012 group (P<0.05). Compared with the 2008-2012 group, the 2013-2017 group (both the heavier infant and lighter infant subgroups) had lower incidence rates of pulmonary hemorrhage, patent ductus arteriosus (PDA), periventricular-intraventricular hemorrhage (P-IVH), and neonatal respiratory distress syndrome (NRDS) and a higher incidence rate of bronchopulmonary dysplasia (P<0.05).
		                        		
		                        			CONCLUSIONS
		                        			There is a significant increase in the survival rate over time in extremely preterm twins with a gestational age of <28 weeks in the 26 grade A tertiary hospitals in Guangdong Province. The incidences of severe asphyxia, pulmonary hemorrhage, PDA, P-IVH, and NRDS decrease in both the heavier and lighter infants of the twins, but the incidence of bronchopulmonary dysplasia increases. With the improvement of diagnosis and treatment, the multidisciplinary collaboration between different fields of fetal medicine including prenatal diagnosis, obstetrics, and neonatology is needed in the future to jointly develop management strategies for twin pregnancy.
		                        		
		                        		
		                        		
		                        			Bronchopulmonary Dysplasia/epidemiology*
		                        			;
		                        		
		                        			Female
		                        			;
		                        		
		                        			Gestational Age
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Infant
		                        			;
		                        		
		                        			Infant, Extremely Premature
		                        			;
		                        		
		                        			Infant, Newborn
		                        			;
		                        		
		                        			Pregnancy
		                        			;
		                        		
		                        			Respiratory Distress Syndrome, Newborn/epidemiology*
		                        			;
		                        		
		                        			Retrospective Studies
		                        			;
		                        		
		                        			Treatment Outcome
		                        			
		                        		
		                        	
10. Screening Novel Drugresistant Mutations in Mycobacterium tuberculosis Strains by Using the Amplicon Sequencing Method
Peng-Peng YANG ; Juan-Xiu LUO ; Yu-Zhu SONG ; Xue-Shan XIA ; A-Mei ZHANG ; Xiao-Fei LI
Chinese Journal of Biochemistry and Molecular Biology 2022;38(4):527-536
		                        		
		                        			
		                        			 Tuberculosis is one of the seriously public problems. The increasing drug-resistant tuberculosis is the key problem for controlling tuberculosis. Rapid and accurate diagnosis is important for further treatment. In this study‚ a next-generation sequencing method based on amplicon sequencing was constructed to screen the mutations in 17 drug-resistant genes of five first-line anti-tuberculosis drugs. A total of 65 mutations were identified in 26 clinic drug-resistant tuberculosis strains‚ including 33 hotspot mutations‚ 9 rare mutations‚ and 23 novel mutations. The pathogenesis‚ conservation‚ and partial structures caused by 18 novel missense mutations were predicted. The results showed that 14 novel mutations showed high conservation in nine species. All these 14 mutations could change the partial structure of protein. According to the detection and analysis results of this study‚ it is speculated that these newly discovered mutations may be potential drug-resistant mutations. It is a rapid‚ accurate and comprehensive method for the detection of drug-resistant mutations in first-line drug-resistant Mycobacterium tuberculosis‚ which could identify hotspot and rare mutations together with novel mutations. The detection method may be used for clinical diagnosis and basic research. 
		                        		
		                        		
		                        		
		                        	
            
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