1.Circulating tumor cells for precision medicine in cancer
Journal of Chinese Physician 2016;18(3):468-470
Over the last two decades,we have seen many advances in the biological underpinnings of many kinds of cancers that have had a significant impact either directly or indirectly on the management and ultimately on the prognostic outcome of this disease.Next-generation sequencing studies have provided further evidence to support the notion4 that cancer is a disease characterized by Darwinian evolution.However,Ones often fail to obtain the information in different stages of the tumor before making treatment decision.This may be the major reason for treatment failures.Currently,circulating tumor cells (CTCs) is considered as aliquid biopsy.By detecting CTCs at different stages of tumor and obtaining the biological characteristics of CTCs,ones can get information about tumor evolution at different stages.It might provide effective basis for individual therapy to tumors,and promote the accuracy of tumor treatment.
2.Extraction and Determination of Total Bromine, Iodine and Species in Atmospheric Aerosol
Siqi XU ; Zhouqing XIE ; Wei LIU ; Hongxia YANG ; Bing LI
Chinese Journal of Analytical Chemistry 2010;38(2):219-224
The species of bromine and iodine in aerosol samples were extracted using ultra-pure water-ultrasonic method with different time in-length and pressurizing decomposition with dilute ammonia, respectively. The efficiency of extraction and the stability of bromine and iodine species were compared under different extraction) conditions. Results showed that(1) the efficiency of extraction using pressurizing decomposition, which might destroy some unknown form of organic iodine, was relatively higher than the one by ultrasonic method;(2) I~- was unstable in added standard cellular blank filter during ultrasonic assisted extraction for long time;(3) The optimum condition was ultra-pure water-ultrasonic assisted extraction for 5 min. Moreover), the suitability of glass microfiber filter(GF) and cellular filter(CF) during extraction for bromine and iodine) species in aerosol was also compared, which indicated that GF is favorable for species analysis than CF under different kinds of extraction conditions. Based upon the extraction results, HPLC-ICP-MS approach was developed to analyze bromine and iodine) species in atmospheric aerosol. The total iodine, bromine and species in the aerosol samples collected in Hefei were then determined accordingly. The levels of total bromine and iodine) in Hefei aerosols were 883 and 231 pmol/m~3, respectively. Br~- was found to be dominant species with 68%, while BrO_3~- was undetectable. 70% of total iodine occurred as unidentified forms including soluble organic) iodine and insoluble iodine.
3.The quality of life in man after treatment of advanced prostate cancer by surgical castration
Wei CHEN ; Zhixian YU ; Hui XIE ; Fangyi ZHANG ; Siqi WANG ; Zhexian DENG ; Xiuling WU ; Zhiliang WENG
Chinese Journal of Postgraduates of Medicine 2008;31(11):20-22
Objective To investigate the quality of life in man after treatment of advanced prostate cancer by surgical castration. Methods A total of 69 patients with advanced prostate cancer treated by sur-gical castration completed the European organization for research and treatment of cancer quality of life questionnaire (QLQ-C30) and QLQ-prostate specific 25-item (PR25) module third at a 12-month interval.The assessment points were preoporative,6 months postoperative and 12 months postoperative. Results Although there were improvement on pain relief (P < 0.01 ) and symptom of urinary (P < 0.01 ) and global health (P < 0.01 ), the physical functioning (P < 0.05 ), role functioning (P < 0.01 ), emotional functioning (P < 0.01 ), cognitive functioning (P < 0.05 ), social functioning (P < 0.05 or < 0.01 ) were found significantly reduced , and insomnia (P < 0.05) and fatigue (P < 0.01 ) aggravated, treatment related symptoms (P <0.01 )appeared predominantly, especially deprivation of sexual functioning. Conclusion The surgical cas-tration when treating advanced prostate cancer did appear to impair the physical and psychological of patients, especially the sexual functioning.
4.Construction and implementation of the "Internet+nursing service" model based on the nurse-patient safety needs
Fenglan XIE ; Fangyu LIN ; Siqi ZHU ; Shouzhen CHENG
Chinese Journal of Practical Nursing 2023;39(3):188-194
Objective:To explore the "Internet + nursing service" model based on the nurse-patient safety needs, and provide reference for development of "Internet + nursing service".Methods:The First Affiliated Hospital of Sun Yatsen University established a "Internet+ nursing service" management team in December 2019, developed an information platform, formulated and implemented a specific plan of the "Internet+ nursing service" model, including service objects, service projects and service modes. After the smooth operation of this model, the statistics of the nursing service projects and service times that had been carried out from September 2020 to March 2021, as well as the satisfaction of 21 patients who received nursing services would be counted.Results:From September 2020 to March 2021, 21 patients were provided with 55 on-site nursing services, and 151 operations in 16 projects were completed. No nursing-related adverse events occurred. The patients gave all five-star evaluations to the door-to-door service, the satisfaction score was 5 points, and the overall evaluation was 99.88 points.Conclusions:The pilot work of "Internet + nursing service" based on the nurse-patient safety needs has met the care needs of discharged patients and the safety needs of door-to-door services, guarantee the safety of nurses' door-to-door service effectively. And it provides reference for the development and improvement of "Internet + nursing service" related safety work in tertiary A-level hospitals.
5.Exploration of the high-quality development path of university-affiliated hospitals facilitated by"seven integrations"under the framework of"one integration and two highs"
Xuan XIE ; Yuping HUANG ; You CHEN ; Xiaojuan JING ; Siqi HUANG
Modern Hospital 2024;24(11):1658-1661,1666
In recent years,challenges persist in the grassroots Party building in the university-affiliated hospitals though increased efforts have been intensified.These challenges include a lack of alignment between Party building and the hospital's central tasks,an absence of distinctive Party building brands,an insufficiently prominent role of Party organizations in hospital development,and inadequate leveraging of the Party construction for promoting medical services and cultivating medical talents.Starting from an exploration of the connotation and significance of constructing framework of"One Integration and Two Highs"in university-affiliated hospitals,this paper conducts an in-depth analysis of the existing problems and their causes within this frame-work.From a holistic perspective,the paper proposes a new path for establishing the"One Integration and Two Highs"frame-work in university-affiliated hospitals,centered around"Seven Integrations":concept integration,organization integration,strength integration,vehicle integration,culture integration,innovation integration,and assessment integration.
6.Characterization of 19 novel gene mutation sites associated with autosome-dominant polycystic kidney disease
Junlan YANG ; Siqi PENG ; Zhiyuan WEI ; Jianan JIANG ; Bin WANG ; Fengmei WANG ; Xiaotong XIE ; Tian XU ; Xiaoliang ZHANG
Chinese Journal of Internal Medicine 2024;63(9):866-873
By analyzing the of genetic testing data of patients with renal polycystic kidney disease and their relatives, this study aims to identify unreported novel gene mutation sites associated with autosomal dominant polycystic kidney disease (ADPKD). Structural prediction software was employed to investigate protein structural changes before and after mutations, explore genotype-phenotype correlations, and enrich the ADPKD gene database. In this single-center retrospective study, patients with multiple renal cysts diagnosed from January 2019 to February 2023 at the Zhong Da Hospital Southeast University were included. Genetic and clinical data of patients and their families were collected. Unreported novel gene mutation sites associated with ADPKD were identified. The AlphaFold v2.3.1 software was used to predict protein structures. Changes in protein structure before and after mutations were compared to explore genotype-phenotype correlations and enrich the ADPKD gene database. Twelve mutated genes associated with renal cysts were detected in 52 families. Nineteen novel gene mutation sites associated with ADPKD were identified, including 17 mutations in the PKD1 gene (one splicing mutation, seven frameshift mutations, four nonsense mutations, one whole-codon insertion, and four missense mutations); one ALG9 missense mutation; and one chromosomal structural variation. Truncating mutations in the PKD1 gene were correlated with a more severe clinical phenotype, while non-truncating mutations were associated with greater clinical heterogeneity. Numerous novel gene mutation sites associated with ADPKD remain unreported. Therefore, it is essential to analyze the pathogenicity of these novel mutation sites, establish genotype-phenotype correlations, and enrich the ADPKD gene database.
7.Research progress of circadian rhythm disorder in cancer survivors
Jianfei XIE ; Lu WANG ; Panpan XIAO ; Lijun LI ; Siqi HE ; Jianda ZHOU ; Qian SUN ; Cheng SK ANDY
Journal of Chinese Physician 2020;22(3):474-477
Circadian rhythm disorder is a common physiological change of cancer survivors, which is mainly manifested in rest activity rhythm change, sleep wake disorder and the decrease of sleep efficiency at night, which further affect their physiological, psychological outcome and disease outcome. This paper reviews the concept, mechanism, influence and intervention methods of circadian rhythm disorder in cancer patients, in order to provide references for effective intervention of circadian rhythm disorder in cancer survivors.
8.Clinical characteristics and genetic analysis of a combined inherited antithrombin and factor Ⅶ deficiency pedigree
Haiyue ZHANG ; Mingshan WANG ; Haixiao XIE ; Siqi LIU ; Shasha LUO ; Lihong YANG ; Xingxing ZHOU ; Yanhui JIN
Chinese Journal of Laboratory Medicine 2020;43(6):635-639
Objective:To study the clinical characteristics and gene mutations in a family with combined inherited antithrombin (AT) and factor Ⅶ (FⅦ) deficiency, and explore the relationship between AT gene, F7 gene mutations and diseases. Methods:Pedigree investigation. Blood samplesand clinical dataswere collected fromthe proband and her family members (a total of 16 people in 3 generations) who admitted to the First Affiliated Hospital of Wenzhou Medical University in November 2018. The prothrombin time (PT), activated partial thromboplastin time (APTT), fibrinogen (FIB), antithrombin activity (AT: A), antithrombin antigen (AT: Ag), protein C activity (PC: A), protein S activity (PS: A), FⅦ activity (FⅦ: C), FⅦ antigen (FⅦ: Ag) and other indicators were detectedto confirm the diagnosis. DNA direct sequencing analysis of all exons, flanking sequences, 5′ and 3′ untranslated regions of AT genes and F7 genes, and the mutation sites were confirmed by clone sequencingor reverse sequencing. Results:The AT: A and AT: Ag of the proband were 46% and 135 mg/L, respectively (reference range: 250-360 mg/L), some of her family members′ s (father, aunt, two cousins, younger brother and nephew) AT: A and AT: Ag were reduced to 50% of normal range. Her father (Ⅰ 2), aunt (Ⅰ 4), elder brother (Ⅱ 7), younger brother (Ⅱ 8), and nephew (Ⅲ 3)′s FⅦ: C were 45%, 50%, 48%, 47% and 48%, respectively; and their FⅦ:Ag was within the normal range. Genetic analysis revealed that the proband(Ⅱ 6) and some of her family members (father, aunt, two cousins, younger brother and nephew) took rs3138521 polymorphism in the 5′ untranslated region of AT gene. Her father (Ⅰ 2), aunt (Ⅰ 4), elder brother (Ⅱ 7), younger brother (Ⅱ 8), nephew (Ⅲ 3) took c.1091G>A heterozygous missense mutationin exon 8 of F7 gene, resulting in p.Arg304Gln. Conclusion:The rs3138521 in AT gene and c.1091G>A in F7 gene, which may be the molecular mechanism leading to combined inherited AT and FⅦ deficiency in this family.
9.Analysis of a Chinese pedigree affected with hereditary factor VII deficiency caused by compound heterozygous variants of F7 gene.
Meina LIU ; Yanhui JIN ; Lihong YANG ; Haixiao XIE ; Xiaolong LI ; Siqi LIU ; Shasha LUO ; Mingshan WANG
Chinese Journal of Medical Genetics 2020;37(6):633-636
OBJECTIVE:
To explore the molecular basis for a Chinese pedigree affected with hereditary coagulation factor VII (FVII) deficiency.
METHODS:
The coding regions of F7 gene were amplified by PCR and sequenced. Suspected variants were confirmed by reverse sequencing and validated in other members from the pedigree. Pathogenicity of the variants was analyzed with multiple bioinformatic tools.
RESULTS:
Genetic analysis revealed that the proband has carried compound heterozygous c.985T>C (p.Ser329Pro) and c.1091G>A (p.Arg364Gln) variants in exon 8 of the F7 gene. Her mother, brother and son were heterozygous for c.985T>C (p.Ser329Pro), while her father was heterozygous for c.1091G>A (p.Arg364Gln). Phylogenetic analysis suggested that both p.Ser329 and p.Arg364 are highly conserved among homologous species. Online bioinformatic software predicted both variants to be deleterious. Protein model analysis suggested that the Pro329 side chain may form a new hydrogen bond with Leu333. The Pro benzene ring may clash with Glu325 in the p.Ser329Pro variant model. The p.Arg364Gln variant have two additional hydrogen bonds compared with wild type Arg364. Both variants may lead to alteration of the protein structure.
CONCLUSION
The p.Ser329Pro and p.Arg364Gln variants in exon 8 of the F7 gene probably account for the reduced FVII in this pedigree.
10.The role of fluid biomarkers in the diagnosis of Alzheimer′s disease
Chinese Journal of Neurology 2023;56(3):245-250
The rapid advancement of biomarker research in Alzheimer′s disease (AD) has improved the accuracy of AD diagnosis, facilitated its early diagnosis and intervention, and has significant implications for disease-modifying therapy research and evaluation. Since its introduction, the AT(N) system has grown in importance in both the clinical and research aspects of AD. However, the fluid biomarkers in the AT(N) system do not yet adequately reflect the complex pathophysiology of AD. Other fluid biomarkers associated with neuroinflammation, synaptic dysfunction, and vascular dysfunction should be a valuable addition to the AT(N). In recent years, the development and application of peripheral blood biomarkers have greatly enriched the fluid biomarker system for AD and are expected to greatly facilitate early screening and diagnosis of the disease. Here, a brief overview of current research on AT(N) and other pathogenesis-related fluid biomarkers is presented, and the article proposes that fluid biomarkers for AD should be studied from a variety of pathophysiological perspectives in order to improve their role in disease diagnosis. This article also discusses the role and limitations of fluid biomarkers in the diagnosis of AD, as well as the future development and application of fluid biomarkers in AD.