1.Paroxysmal motor induced dyskinesia caused by PRRT2 gene c.776del mutation
Sen HUANG ; Zhan-Hua ZHONG ; Weineng CHEN ; Ruojie HE ; Ling LIAN ; Xiaoli YAO
Chinese Journal of Nervous and Mental Diseases 2024;50(4):239-241
This article reported a typical case of paroxysmal kinesigenic dyskinesia(PKD).The patient was a 26-year-old female with a medical history of 10 years.The patient manifested as paroxysmal choreoathetosis of the limb and head triggered by sudden movement in a quiet state,without sensory aura.The symptoms resolved spontaneously after tens of seconds.She was conscious during and between attacks,had a clear family history and a normal neurological examination.No abnormalities were found in brain magnetic resonance image and electroencephalogram.Genetic test showed a frame-shift mutation of c.776del in PRRT2 gene of the proband and her father with similar phenotype.The patient was diagnosed with PKD according to the diagnostic criteria for PKD.The symptoms were significantly relieved after one month of oxcarbazepine treatment with good prognosis.PKD is a rare movement disorder.The patient has typical symptoms,and the mutation site has not been reported in the Human Gene Mutation Database.Therefore,this article enriched the pathogenic gene mutation spectrum of PKD,provided a basis for genetic counseling of PKD and increased the awareness of this rare disease among physicians.
2.The Polymorphism Analysis of HLA Class Ⅱ Alleles Based on Next-Generation Sequencing and Prevention Strategy for Allele Dropout
Su-Qing GAO ; Zhan-Rou QUAN ; Yan-Ping ZHONG ; Hao CHEN ; Liu-Mei HE ; Hong-Yan ZOU ; Zhi-Hui DENG
Journal of Experimental Hematology 2024;32(2):603-609
Objective:To investigate the accuracy of next-generation sequencing technology(NGS)in detecting the polymorphisms of HLA-DRB1,DQB1,DQA1,DRB3,DRB4,DRB5,DPA1 and DPB1 alleles in randomly-selected unrelated healthy individuals from Shenzhen Han population,investigate the potential reason for HLA-DRB1 allele dropout in routine NGS,and establish an internal quality control system.Methods:NGS-based HLA class Ⅱ genotyping was performed on 1 012 samples using the MiSeqDxTM platform.The suspected missed alleles indicated by the quality control software and HLA-DRB1 homozygotes were confirmed by PCR-SSOP or PCR-SBT methods.Results:A total of 139 alleles were detected,including HLA-DRB1(45),DRB3(7),DRB4(5),DRB5(7),DQA1(17),DQB1(21),DPA1(10)and DPB1(27).HLA-DRB 1*09:01(17.09%),15:01(10.72%);DRB3*02:02(25.99%),03:01(10.18%);DRB4*01:03(36.46%);DRB5*01:01(15.42%);DQA1*01:02(20.01%),03:02(17.19%);DQB1*03:01(19.47%),03:03(17.98%),05:02(11.66%),06:01(10.67%);DPA1*02:02(54.45%),01:03(31.18%)and DPB1*05:01(39.13%),02:01(16.90%)alleles were the most common alleles in Shenzhen Han population(frequencies>10%).There was no statistical difference between the gene frequencies of HLA-DRB1 and DQB1 loci in our study.The HLA Common and Well-Documented Alleles in China(CWD2.4)(x2=12.68,P>0.05).94 cases of HLA-DRB1 homozygous samples detected by NGS were retested by PCR-SSOP or SBT method,and one case of allele dropout at HLA-DRB1 locus was found.SBT method confirmed that the allele of DRB1*04:03 was missed.The laboratory internal quality control system was established.Two cases of new alleles were detected and named by WHO Nomenclature Committee for Factors of the HLA System.Conclusion:The HLA genotyping results based on NGS showed a significantly lower ambiguity rate.The HLA class Ⅱ alleles exhibit genetic polymorphism in the Han population of unrelated healthy individuals in Shenzhen.The independent method based on NGS in clinical histocompatibility testing has limitations and requires internal quality control strategies to avoid allele-dropout events.
3.Analysis of Whole Exome Sequencing Result in Adult Genetic Diseases
Li ZHANG ; Yaoyi GAO ; Li YU ; Xianhong SHU ; Jingmin ZHOU ; Jing DING ; Chunjiu ZHONG ; Chunyan ZHAN ; Baishen PAN ; Beili WANG ; Wei GUO
Chinese Journal of Laboratory Medicine 2024;47(10):1192-1196
Objective:To investigate the effectiveness and feasibility of whole exome sequencing (WES), as a molecular diagnosis technique, for adult patients with genetic diseases.Methods:The present retrospective analysis included 445 adult patients (ages 18-80 years) with suspected genetic diseases who underwent whole exome sequencing (WES) from August 2021 to December 2022. The pathogenicity classification of each variant was assessed in accordance with the recommendations developed by the American Society of Medical Genetics and Genomics.Results:The overall positive rate of WES among adult patients with suspected genetic diseases was 28.08% (125/445). The highest positive rate was observed in the age group of 41-50 years (34.33%, 23/67). Among the diagnosed genetic diseases, those affecting the cardiovascular system (63.16%, 84/133), nervous system (18.05%, 24/133), and endocrine system (13.53%, 18/133) ranked as the top three. The most common genetic diseases identified through WES in adult patients were hypertrophic cardiomyopathy (18.80%, 25/133), dilated cardiomyopathy (16.54%, 22/133), Marfan syndrome (15.04%, 20/133), epilepsy (9.02%, 12/133), and familial hypercholesterolemia (4.51%, 6/133). The main causative genes identified included FBN1 (14.29%, 19/133), MYBPC3 (9.02%, 12/133), MYH7 (9.02%, 12/133), LDLR (3.76%, 5/133), TTN (3.76%, 5/133), and TNNI3 (3.01%, 4/133).Conclusion:Applying the WES technique in clinical practice can improve the diagnostic rate of adult genetic diseases, especially in adult patients with suspected genetic conditions involving the cardiovascular system, nervous system, and endocrine system.
4.Formulation and Analysis on the Standard of Pharmacy Administration in Emergencies
Jingjing RAO ; Jiancun ZHEN ; Wei ZHANG ; Dan MEI ; Liyan MIAO ; Mingkang ZHONG ; Shen GAO ; Rongsheng ZHAO ; Hanqiu ZHAN
Herald of Medicine 2024;43(7):1070-1074
The pharmacy department of medical institutions assumes important responsibilities in the emergency response work.The standard of pharmacy administration in emergencies is formulated based on the principles of scientificity,versatility,instructiveness,and operability,through sorting out problems,collecting opinions and expert argumentation.This standard has 49 standards of 9 key elements from three aspects:emergency mechanism,emergency support,and emergency services.This article aims to introduce the construction method and formulation process of the pharmacy administration in emergency standards,and analyzes the content,to guide for improving emergency response ability of the medical institutions'pharmacy department in emergency events.
5.A multicenter study of neonatal stroke in Shenzhen,China
Li-Xiu SHI ; Jin-Xing FENG ; Yan-Fang WEI ; Xin-Ru LU ; Yu-Xi ZHANG ; Lin-Ying YANG ; Sheng-Nan HE ; Pei-Juan CHEN ; Jing HAN ; Cheng CHEN ; Hui-Ying TU ; Zhang-Bin YU ; Jin-Jie HUANG ; Shu-Juan ZENG ; Wan-Ling CHEN ; Ying LIU ; Yan-Ping GUO ; Jiao-Yu MAO ; Xiao-Dong LI ; Qian-Shen ZHANG ; Zhi-Li XIE ; Mei-Ying HUANG ; Kun-Shan YAN ; Er-Ya YING ; Jun CHEN ; Yan-Rong WANG ; Ya-Ping LIU ; Bo SONG ; Hua-Yan LIU ; Xiao-Dong XIAO ; Hong TANG ; Yu-Na WANG ; Yin-Sha CAI ; Qi LONG ; Han-Qiang XU ; Hui-Zhan WANG ; Qian SUN ; Fang HAN ; Rui-Biao ZHANG ; Chuan-Zhong YANG ; Lei DOU ; Hui-Ju SHI ; Rui WANG ; Ping JIANG ; Shenzhen Neonatal Data Network
Chinese Journal of Contemporary Pediatrics 2024;26(5):450-455
Objective To investigate the incidence rate,clinical characteristics,and prognosis of neonatal stroke in Shenzhen,China.Methods Led by Shenzhen Children's Hospital,the Shenzhen Neonatal Data Collaboration Network organized 21 institutions to collect 36 cases of neonatal stroke from January 2020 to December 2022.The incidence,clinical characteristics,treatment,and prognosis of neonatal stroke in Shenzhen were analyzed.Results The incidence rate of neonatal stroke in 21 hospitals from 2020 to 2022 was 1/15 137,1/6 060,and 1/7 704,respectively.Ischemic stroke accounted for 75%(27/36);boys accounted for 64%(23/36).Among the 36 neonates,31(86%)had disease onset within 3 days after birth,and 19(53%)had convulsion as the initial presentation.Cerebral MRI showed that 22 neonates(61%)had left cerebral infarction and 13(36%)had basal ganglia infarction.Magnetic resonance angiography was performed for 12 neonates,among whom 9(75%)had involvement of the middle cerebral artery.Electroencephalography was performed for 29 neonates,with sharp waves in 21 neonates(72%)and seizures in 10 neonates(34%).Symptomatic/supportive treatment varied across different hospitals.Neonatal Behavioral Neurological Assessment was performed for 12 neonates(33%,12/36),with a mean score of(32±4)points.The prognosis of 27 neonates was followed up to around 12 months of age,with 44%(12/27)of the neonates having a good prognosis.Conclusions Ischemic stroke is the main type of neonatal stroke,often with convulsions as the initial presentation,involvement of the middle cerebral artery,sharp waves on electroencephalography,and a relatively low neurodevelopment score.Symptomatic/supportive treatment is the main treatment method,and some neonates tend to have a poor prognosis.
6.Effects of brusatol on the malignant biological behavior of ovarian cancer cells by regulating SPHK1/S1P/S1PR3 signaling pathway
Mingyan ZHONG ; Fan YANG ; Haizhen LI ; Qi ZHAN ; Wei ZHANG
China Pharmacy 2024;35(16):1991-1997
OBJECTIVE To investigate the effects of brusatol on the malignant biological behavior of ovarian cancer cells by regulating the sphingosine kinase 1 (SPHK1)/sphingosine-1-phosphate (S1P)/sphingosine-1-phosphate receptor 3 (S1PR3) signaling pathway. METHODS Human ovarian cancer cell strain SKOV-3 were randomly divided into control group, brusatol group, SPHK1 overexpression group, brusatol+blank load group, brusatol+SPHK1 overexpression group. The cell viability, colony formation rate, the number of migration and invasion, apoptosis rate, the expressions of cell proliferation-related proteins [myelocytomatosis viral oncogene homolog (C-myc)], apoptosis-related proteins [B-cell lymphoma-2 (Bcl-2), Bcl-2 associated X protein (Bax)], epithelial mesenchymal transition (EMT)-related proteins (E-cadherin, N-cadherin) and SPHK1, S1P, S1PR3 proteins were all detected in each group. Transplanted tumor model of nude mice was constructed by using SKOV-3 cells and randomly separated into control group, brusatol low-dose, medium-dose and high-dose groups, SPHK1 overexpression group, high- dose brusatol+blank load group, and high-dose brusatol+SPHK1 overexpression group; the growth of transplanted tumors were detected. The nude mice model of SKOV-3 transplantation tumor was randomly divided into control group, brusatol group, SPHK1 overexpression group, brusatol+blank load group, and brusatol+SPHK1 overexpression group; the proliferation and apoptosis of transplanted tumor tissue, the expressions of EMT-related Δ 基金项目江西省中医药管理局科技计划项目(No.2023B0762) *第一作者 副主任药师 。研究方向 :药学研究及药理学 。E- proteins and SPHK1/S1P/S1PR3 signaling pathway proteins mail:jsgj2023@126.com were detected in each group. RESULTS Cell experiments in # 通信作者 主任医师,硕士。研究方向:妇科及妇科肿瘤学。E- vitro had shown that compared with the control group, the cell mail:11638199@qq.com viability, clone formation rate, migration number, invasion 中国药房 2024年第35卷第16期 China Pharmacy 2024 Vol. 35 No. 16 · 1991 · number, protein expressions of C-myc, Bcl-2, N-cadherin, SPHK1, S1P and S1PR3 were decreased significantly in brusatol group (P<0.05), while the apoptosis rate, protein expressions of Bax and E-cadherin were increased significantly (P<0.05); overexpression of SPHK1 could weaken the effects of brusatol on the above indicators in SKOV-3 cells. Mice experiments in vivo had shown that compared with the control group, the transplanted tumor volumes of nude mice in the brusatol low-dose, medium- dose and high-dose groups were decreased significantly in a dose-dependent manner after 21 days of intervention (P<0.05). Brusatol of high dose could also significantly reduce the protein expressions of C-myc, Bcl-2, N-cadherin, SPHK1, S1P and S1PR3 in transplanted tumor tissue of nude mice (P<0.05), and significantly increase the protein expressions of Bax and E- cadherin (P<0.05); overexpression of SPHK1 could weaken the effects of brusatol on the above indicators in transplanted tumor tissue of nude mice. CONCLUSIONS Brusatol can inhibit the proliferation, cloning, EMT, migration and invasion of ovarian cancer cells, and induce their apoptosis by down-regulating the expression of SPHK1/S1P/S1PR3 signaling pathway. It can also inhibit the growth of ovarian cancer cells in nude mice, ultimately suppressing their malignant biological behavior and exerting significant anti-cancer effects on ovarian cancer.
7.The nomogram based on preoperative inflammatory biomarkers used for predicting the prognosis of HCC patients treated with transcatheter arterial chemoembolization:its construction and validation
Dongxu ZHAO ; Binyan ZHONG ; Zhongheng HOU ; Yi ZHAN ; Caifang NI
Journal of Interventional Radiology 2024;33(3):245-258
Objective To construct and validate a predictive model based on preoperative inflammatory biomarkers,and to evaluate its ability in predicting the prognosis of patients with unresectable hepatocellular carcinoma(HCC)after receiving transcatheter arterial chemoembolization(TACE).Methods A total of 544 patients with HCC,who received TACE as the initial treatment at six medical institutions between January 2007 and December 2020,were retrospectively collected.The patients were divided into training cohort(n=376)and validation cohort(n=168).LASSO algorithm and Cox regression analysis were used to screen out the independent influencing factors and to make modelling.The model was validated based on the discrimination,calibration and clinical applicability,and the Kaplan-Meier risk stratification curves were plotted to determine the prognostic differences between groups.The likelihood ratio chi-square value,R2 value,akaike information criterion(AIC)value,C-index and AUROC value of the model were calculated to determine its accuracy and efficiency.Results The training cohort and validation cohort had 376 participants and 168 participants respectively.Multivariate analysis indicated that BCLC,tumor size,number of tumor lesions,neutrophil and prognostic nutritional index(PNI)were the independent influencing factors for postoperative overall survival(OS),with all P being<0.05;the BCLC grade,tumor size,number of tumor lesions,NLR,PNI and PS score were the independent influencing factors for progression-free survival(PFS),with all P being<0.05.The C-indexes of the OS and PFS models were 0.735(95% CI=0.708-0.762)and 0.736(95% CI=0.711-0.761)respectively,and the external validation was 0.721(95% CI=0.680-0.762)and 0.693(95% CI=0.656-0.730)respectively.Ideal discrimination ability of the nomogram was exhibited in time-dependent C-index,time-dependent ROC,and time-dependent AUC.The calibration curves significantly coincided with the ideal standard lines,indicating that the model had high stability and low over-fitting level.Decision curve analysis revealed that there was a wider range of threshold probabilities and it could augment net benefits.The Kaplan-Meier curves for risk stratification indicated that the prognosis of patients varied dramatically between risk categories(P<0.000 1).The Kaplan-Meier curves for risk stratification indicated that the prognosis of patients varied dramatically among different risk groups(P<0.000 1).The likelihood ratio chi-square value,R2 value,AIC value,C-index and AUROC value of the model were better than those of other models commonly used in clinical practice.Conclusion The newly-developed prognostic nomogram based on preoperative inflammatory indicators has excellent accuracy as well as excellent prediction effect in predicting the prognosis of patients with unresectable HCC after receiving TACE,therefore,it can be used as an effective tool for guiding individualized treatment and for predicting prognosis.(J Intervent Radiol,2024,33:245-258)
8.Effects of Needle Retention Time for Scalp Acupuncture on Motor Dysfunction and Serum C-Reactive Protein,Blood Glucose and Blood Lipid of Post-Stroke Patients
Qi ZHONG ; Hai-Yan CAI ; Bing-Xu JIN ; Zhan-Xin HUO ; Hui-Yi LUO ; Qiu-Xia ZHONG ; Hao-Xun GUO ; Jia-Wen CHEN ; Shu-Hui ZOU
Journal of Guangzhou University of Traditional Chinese Medicine 2024;41(6):1510-1516
Objective To observe the improvement of motor dysfunction and serum levels of C-reactive protein(CRP),blood glucose and blood lipid in post-stroke patients treated with scalp acupuncture at different needle retention time.Methods A total of 120 patients with motor dysfunction after stroke were randomly divided into control group,observation group 1 and observation group 2,with 40 cases in each group.The patients in the 3 groups were treated with scalp acupuncture,body acupuncture and routine rehabilitation exercise,once a day and 6 times a week,lasting for 2 weeks.The control group was given scalp acupuncture with retaining of needles for 30 minutes,the observation group 1 was given scalp acupuncture with retaining of needles for one hour,and the observation group 2 was given scalp acupuncture with retaining of needles for 2 hours.Before and after treatment,the 3 groups were observed in the changes of the scale scores of National Institutes of Health Stroke Scale(NIHSS),Fugl-Meyer Assessment(FM A),Berg Balance Scale(BBS)and modified Barthel Index(MBI),and the levels of laboratory indicators of peripheral blood CRP,fasting plasma glucose(FPG),total cholesterol(TC),triglyceride(TG),high-density lipoprotein cholesterol(HDL-C)and low-density lipoprotein cholesterol(LDL-C).After treatment,the clinical safety of the three groups was evaluated.Results(1)After treatment,the scale scores of NIHSS in the three groups were lower(P<0.01)and the scale scores FMA,BBS and MBI were higher than those before treatment(P<0.05 or P<0.01).The comparison of post-treatment scale scores showed that the differences among the three groups were statistically significant(P<0.01).The intergroup comparison showed that the decrease of NIHSS score and the increase of FMA,BBS and MBI scores in the observation group 2 were significantly superior to those in the control group and the observation group 1(P<0.01);the improvement of FMA score in the observation group 1 was significantly superior to that in the control group(P<0.01),while the improvement of NIHSS,BBS and MBI scores tended to be superior to that in the control group without statistically significant differences(P>0.05).The results indicated that the curative effect of scalp acupuncture plus exercise regimen was positively correlated with the duration of needle retention for scalp acupuncture.(2)After treatment,the laboratory indicator levels of CRP and FPG in the peripheral blood of the three groups,the levels of TG and LDL-C in the two observation groups and the level of HDL-C in the observation group 2 were improved compared with those before treatment(P<0.05 or P<0.01).Statistically significant differences were presented in the post-treatment levels of CRP and TG in peripheral blood among the three groups(P<0.05 or P<0.01).The intergroup comparison showed that the improvement of CRP and TG levels in the observation group 2 was significantly superior to that in the control group,and the improvement of CRP level in the observation group 2 was significantly superior to that in the observation group 1,the differences being statistically significant(P<0.05 or P<0.01).The TC level in the three groups after treatment did not differ from that before treatment,and there was no significant difference in TC level after treatment among the three groups either(P>0.05).(3)During the treatment,no adverse reactions such as fainting,needle breaking and hematoma occurred in the three groups,the vital signs of the patients were stable,and there were no obvious abnormal changes in pulse,blood pressure and respiratory rate.Conclusion Scalp acupuncture can effectively improve the motor function of post-stroke patients in a pasitive time-effect relationship with the needle retention,and better the curative effect can be achieved by retaining of the needle for 2 h.
9.Structural characteristics and antitumor activity of polysaccharides from Cordyceps species
Zhong-gen ZHAN ; Su-dan YE ; Wei-su HUANG
Acta Pharmaceutica Sinica 2023;58(2):285-297
Polysaccharides is one of the main bioactive components of
10.Using Next-Generation Sequencing Technology to Confirm the HLA Rare Alleles Detected by PCR-SSOP.
Xian-Xin ZHONG ; Wang-Da WU ; Zhan-Rou QUAN ; Su-Qing GAO
Journal of Experimental Hematology 2023;31(1):203-208
OBJECTIVE:
To confirm the HLA genotypes of the samples including 4 cases of magnetic bead probe HLA genotyping result pattern abnormality and 3 cases of ambiguous result detected by PCR sequence-specific oligonudeotide probe (SSOP) method.
METHODS:
All samples derived from HLA high-resolution typing laboratory were detected by PCR-SSOP. A total of 4 samples of magnetic bead probe HLA genotyping result pattern abnormality and 3 samples of ambiguous result were further confirmed by PCR sequence-based typing (SBT) technology and next-generation sequencing (NGS) technology.
RESULTS:
A total of 4 samples of magnetic bead probe HLA genotyping result pattern abnormality were detected by PCR-SSOP method. The results of SBT and NGS showed that the HLA-A genotype of sample 1 did not match any known genotypes. NGS analysis revealed that the novel allele was different from the closest matching allele A*31:01:02:01at position 154 with G>A in exon 2, which resulting in one amino acid substitution at codon 28 from Valine to Methionine (p.Val28Met). The HLA-C genotype of sample 2 was C*03:119, 06:02, sample 3 was C*03:03, 07:137, and sample 4 was B*55:02, 55:12. A total of 3 samples with ambiguous result were initially detected by PCR-SSOP method. The re-examination results of SBT and NGS showed that the HLA-B genotype of sample 5 was B*15:58, 38:02, sample 6 was DRB1*04:05, 14:101, and sample 7 was DQB1*03:34, 05:02. Among them, alleles C*03:119, C*07:137 and DRB1*14:101 were not included in the Common and Well-documented Alleles (CWD) v2.4 of the Chinese Hematopoietic Stem Cell Donor Database.
CONCLUSION
The abnormal pattern of HLA genotyping results of magnetic probe by PCR-SSOP method suggests that it may be a rare allele or a novel allele, which needs to be verified by sequencing.
Humans
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Alleles
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Polymerase Chain Reaction
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Genotype
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High-Throughput Nucleotide Sequencing
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Histocompatibility Testing/methods*
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Technology

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