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Triage for management of cervical high-grade squamous intraepithelial lesion patients with positive margin

null

《医学前沿（英文）》 2017年 第11卷 第2期   页码 223-228 doi: 10.1007/s11684-017-0517-8

摘要：

The objective of this study is to guide a triage for the management of cervical high-grade squamous intraepithelial lesion (HSIL) patients with positive margin by conization. Clinico-pathological data of HSIL patients with positive margin by conization were retrospectively collected from January 2009 to December 2014. All patients underwent secondary conization or hysterectomy within 6 months. The rate of residual lesion was calculated, and the factors associated with residual lesion were analyzed by univariate and multivariate analyses. Among a total of 119 patients, 56 (47.06%) patients presented residual HSIL in their subsequent surgical specimens, including 4 cases of invasive cervical carcinoma (3 stage IA1 and 1 stage IA2 patients). Univariate analysis showed that patient age>35 years (P=0.005), menopausal period>5 years (P=0.0035), and multiple-quadrant involvement (P=0.001) were significantly correlated with residual disease; however, multivariate analysis revealed that multiple-quadrant involvement (P=0.001; OR, 3.701; 95%CI, 1.496–9.154) was an independent risk factor for residual disease. Nearly half of HSIL patients with positive margin by conization were disease-free in subsequent surgical specimens, and those with multiple positive margins may consider re-conization or re-assessment.

关键词： cervical high-grade squamous intraepithelial lesion     conization     positive surgical margin     hysterectomy    

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Clinical significance of human papilloma virus infection in the cervical lesions

Shuang LI, Yu-Han MENG, Hu TING, Jian SHEN, Ding MA

《医学前沿（英文）》 2010年 第4卷 第3期   页码 264-270 doi: 10.1007/s11684-010-0094-6

摘要： Cervical lesions have been regarded as the common and frequently occurring diseases in China. Recently, the morbidity and youth tendency of cervical cancer have gradually increased. Cervical cancer, related with human papilloma virus (HPV) infection, has been one of the severest diseases threatening health and life of women, and is an infectious disease. The universality of HPV infection in the reproductive tract should not be ignored. The well-known risk factors of HPV infection in cervical lesions consist of high-risk sexual behaviors, immunosuppression, age, contraceptive methods, the concurrent infection of other sexually transmitted diseases, etc. The variation of cervical lesions induced by HPV infection is involved in the continuous pathological process, including the subclinical, latent, and persistent infection of high risk (HR)-HPV, chronic cervicitis with abnormal results of cytological examination, cervical intraepithelial neoplasia (CIN), and cervical cancer. The outcome of patients with HPV infection is influenced by many factors, such as HPV subtype dominance, persistent HPV infection, HPV loading dose, and multiple HPV infection. Controlling HR-HPV persistent infection should be an important strategy for reducing cervical lesions.

关键词： cervical lesion     high risk-human papilloma virus     persistent infection     loading dose     cervical intraepithelial neoplasia     cervical cancer    

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Epidemiological studies of women under age 30 infected with human papillomavirus

Zhihua LIU MD, Qing LI BM, Weihong LI BM,

《医学前沿（英文）》 2009年 第3卷 第4期   页码 459-462 doi: 10.1007/s11684-009-0084-8

摘要： The aim of this paper was to investigate the prevalence of human papilloma virus (HPV) infection in women under 30 years old with cervical intraepithelial neoplasia (CIN) or cervical cancer, in order to provide a basis for cervical cancer prevention and treatment. We recruited 2052 female cases from the education system in Futian District, Shenzhen city, from April 2006 to April 2008, with age ranging from 22 to 60 years old. Second-generation hybrid capture test was done for detection of female genital tract HPV and cervical colposcopy for screening CIN or cervical cancer. The prevalence of HPV and cervical precancerous lesions or cervical cancer was evaluated in different age groups of women. The HPV positive rate was 247/2052 (12.00%), and 35/2052 (1.71%) of the cases were≥CIN I by pathological diagnosis. In the 22―29-year-old age group, there were 291 cases, including 39HPV-positive cases (13.40%) and one case of pathological diagnosis≥CIN I (0.34%), and there were 1761 cases in the 30―60-year-old age group, including 208 HPV-positive cases (11.81%) and 34 cases of pathological diagnosis≥CIN I (1.93%). The HPV-positive rate of 22―29-year-old age group was higher than that of 30―60-year-old age group, but the difference was not significant ( = 0.5967, = 0.4398); the CIN and cervical cancer detection rate of the former group was lower than that of the latter one, and the difference was not significant either ( = 3.7519, = 0.0527). The cases in 30―60-year-old age group were divided into five age sub-groups, and the HPV-positive rate of the 22―29-year-old age group was compared with the remaining groups, and it was found that the HPV-positive rate of the former group (13.40%) was lower than that of the 40―44-year-old age group (14.70%) but higher than that of the other four groups. Moreover, the difference in the HPV-positive rate between the 22―29-year-old age group and the 50―60-year-old age group (6.06%) was significant ( = 5.545, = 0.018), but the difference between the 22― 29-year-old age group and each of the other four groups was not significant (>0.05). In addition, the CIN and cervical cancer detection rate of the 22―29-year-old age group (0.34%) was lower than that of the remaining five groups, and the difference between the 22―29-year-old age group and the 35―39-year-old age group (2.26%), and between 22―29-year-old age group and 40―44-year-old age group (2.30%) was significant ( = 4.446, = 0.0035; = 4.525, = 0.0363, respectively), but the difference between the 22―29-year-old age group and each of other three groups was not significant (>0.05). Furthermore, 80.00% (28/35) cases of pathological diagnosis≥CIN I and 90.91% (10/11) lesions of pathological diagnosis≥CIN II occurred at 35―49 years of age. For many young women below the age of 30 who were infected with high-risk HPV were one-off infections, so it was not appropriate to recommend HPV detection as cervical precancerous lesions or cancer screening program for women less than 30 years old. The prevention and treatment of cervical cancer should be focused on those women more than 35 years of age.

关键词： cervical cancer     human papilloma virus     cervical intraepithelial neoplasia    

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percutaneous coronary intervention of left main coronary artery disease: the importance of proper lesion

《医学前沿（英文）》 2023年 第17卷 第1期   页码 75-84 doi: 10.1007/s11684-022-0950-1

摘要： This retrospective single-center registry study included all consecutive patients who underwent percutaneous coronary intervention (PCI) for a de novo left main coronary artery lesion using drug coated-balloon (DCB)-only strategy between August 2011 and December 2018. To best of our knowledge, no previous studies of DCB-only strategy of treating de novo left main coronary artery disease, exist. The primary endpoint was major adverse cardiovascular events (MACEs) including cardiac death, non-fatal myocardial infarction, and target lesion revascularization (TLR). The cohort was divided into two groups depending on weather the lesion preparation was done according to the international consensus group guidelines. Sixty-six patients (mean age 75±8.6, 72% male), 52% of whom had acute coronary syndrome, underwent left main PCI with the DCB-only strategy. No procedural mortality and no acute closures of the treated left main occurred. At 12 months, MACE and TLR occurred in 24% and 6% of the whole cohort, respectively. If the lesion preparation was done according to the guidelines, the MACE and TLR rates were 21.2% and 1.9%. Left main PCI with the DCB only-strategy is safe leading to acceptable MACE and low TLR rates at one year, if the lesion preparation is done according to the guidelines.

关键词： drug-coated balloon     left main     high bleeding risk     predilatation     calcifield lesion     percutaneous coronary intervention    

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Molecular alterations and clinical relevance in esophageal squamous cell carcinoma

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《医学前沿（英文）》 2013年 第7卷 第4期   页码 401-410 doi: 10.1007/s11684-013-0286-y

摘要：

Esophageal squamous cell carcinoma (ESCC) is one of the most common types of gastrointestinal cancers, and the fourth leading cause of cancer-related deaths in China. Early detection and intervention in time may dramatically increase the survival of the patients by initiating treatment regimens during earlier stages of ESCC or even during precancerous stages. Molecular classification will be useful for subtyping esophageal tumors or precancerous lesions to improve current therapeutics or early intervention of the disease. In this review, we summarize the findings in investigating the molecular alterations and clinical relevance of ESCC.

关键词： esophageal squamous cell carcinoma (ESCC)     early detection     molecular classification     molecular markers    

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高钢级钢管和高压输送：我国油气输送管道的重大技术进步

李鹤林,吉玲康,田伟

《中国工程科学》 2010年 第12卷 第5期   页码 84-90

摘要：

近年来，我国管道企业和相关科研院所联合攻关，取得了一批关键技术成果，这些成果包括：研制了X70，X80钢级高性能管线钢及焊管、管件；突破国际上螺旋缝埋弧焊管的使用禁区，确立了具有中国特色的“大口径高压输送主干线螺旋埋弧焊管与直缝埋弧焊管联合使用”的技术路线；在国内首次研究了高压输气管道动态断裂与止裂问题，采用Battelle双曲线模型预测了西气东输和西气东输二线等管道延性断裂的止裂韧性；在国内首次研究了油气管道基于应变的设计方法，解决了该设计方法及抗大变形管线钢管在强震区和活动断层管段应用的技术难题；解决了高强度焊管的腐蚀控制和应变时效控制等技术。

关键词： 油气管道     管线钢     螺旋缝埋弧焊管     止裂韧性     基于应变的设计    

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Repurposed benzydamine targeting CDK2 suppresses the growth of esophageal squamous cell carcinoma

《医学前沿（英文）》 2023年 第17卷 第2期   页码 290-303 doi: 10.1007/s11684-022-0956-8

摘要： Esophageal squamous cell carcinoma (ESCC) is one of the leading causes of cancer death worldwide. It is urgent to develop new drugs to improve the prognosis of ESCC patients. Here, we found benzydamine, a locally acting non-steroidal anti-inflammatory drug, had potent cytotoxic effect on ESCC cells. Benzydamine could suppress ESCC proliferation in vivo and in vitro. In terms of mechanism, CDK2 was identified as a target of benzydamine by molecular docking, pull-down assay and in vitro kinase assay. Specifically, benzydamine inhibited the growth of ESCC cells by inhibiting CDK2 activity and affecting downstream phosphorylation of MCM2, c-Myc and Rb, resulting in cell cycle arrest. Our study illustrates that benzydamine inhibits the growth of ESCC cells by downregulating the CDK2 pathway.

关键词： benzydamine     cyclin-dependent kinase 2     patient-derived xenograft     esophageal squamous cell carcinoma    

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PD-1/PD-L1 blockade in cervical cancer: current studies and perspectives

Yumeng Wang, Guiling Li

《医学前沿（英文）》 2019年 第13卷 第4期   页码 438-450 doi: 10.1007/s11684-018-0674-4

摘要： Cervical cancer (CC) is the fourth most commonly diagnosed female malignancy and a leading cause of cancer-related mortality worldwide, especially in developing countries. Despite the use of advanced screening and preventive vaccines, more than half of all CC cases are diagnosed at advanced stages, when therapeutic options are extremely limited and side effects are severe. Given these circumstances, new and effective treatments are needed. In recent years, exciting progress has been made in immunotherapies, including the rapid development of immune checkpoint inhibitors. Checkpoint blockades targeting the PD-1/PD-L1 axis have achieved effective clinical responses with acceptable toxicity by suppressing tumor progression and improving survival in several tumor types. In this review, we summarize recent advances in our understanding of the PD-1/PD-L1 signaling pathway, including the expression patterns of PD-1/PD-L1 and potential PD-1/PD-L1-related therapeutic strategies for CC.

关键词： PD-1     PD-L1     immune checkpoint blockade antibody     immunotherapy     cervical cancer    

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Application of Grading of Recommendations Assessment, Development, and Evaluation (GRADE) to the guideline

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《医学前沿（英文）》 2017年 第11卷 第4期   页码 590-594 doi: 10.1007/s11684-017-0537-4

摘要：

Grading of Recommendations Assessment, Development, and Evaluation (GRADE) offers a worldwide approach to guideline development for clinical practice. For the clinical practice of acupuncture therapy, 18 evidence-based guidelines have been developed in China using GRADE. In this study, we review the advantages and limitations of the GRADE approach in the guideline development for acupuncture and moxibustion and propose some solutions to these limitations. Scientific advantages of rating the quality of evidence, outcome-centric direction, overall progression to develop recommendations, and strength of recommendations providing specific clinical guidance are the advantages of GRADE. The limitations of GRADE in the development of guidelines for acupuncture and moxibustion include rating the quality of evidence for ancient literature and literature on famous traditional Chinese medicine experts’ experiences and specific guidelines for formulating recommendations from evidence. In the guideline development for clinical practice with acupuncture and moxibustion, we suggest that a specific method should be explored based on the GRADE approach and the characteristics of acupuncture therapy.

关键词： guideline     acupuncture     GRADE    

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Relative expression of PTTG and bFGF in oral squamous cell carcinoma and Tca8113

Yumei DING BM , Lili CHEN MD , Bo CHENG PhD , Handong ZHANG MM ,

《医学前沿（英文）》 2009年 第3卷 第3期   页码 357-362 doi: 10.1007/s11684-009-0046-1

摘要： The purpose of this study was to investigate the expression of pituitary tumor transforming gene (PTTG) and basic fibroblast growth factor (bFGF) in oral squamous cell carcinoma (OSCC) and tongue cancer cell line Tca8113, as well as their effects on each other. We detected PTTG protein and bFGF in OSCC tissues from 56 cases using the streptavidin-biotin peroxidase (S-P) method; additionally, after being treated with different concentrations of anti bFGF or PTTG antibody, PTTG or bFGF expression in Tca8113 was examined by immunocytochemistry. The results were as follows: (1) Positive rates of PTTG protein and bFGF were 78.2% and 67.3% in OSCC, respectively, which were significantly higher than those in normal mucosal tissues (<0.05). PTTG protein was significantly up-regulated in poorly and moderately differentiated tumors compared to well differentiated tumors (<0.05), and there was also a significant difference between tumors with lymph node metastasis and tumors without lymph node metastasis (<0.05). PTTG protein expression was positively correlated with bFGF ( = 0.382, <0.05); (2) PTTG protein emitted strong fluorescence in Tca8113, and it decreased after being treated with anti-bFGF antibody. Anti-PTTG antibody also had an inhibitive effect on bFGF expression. In summary, the overexpression of PTTG protein is closely related with OSCC differentiation and lymph node metastasis. PTTG protein expression conforms to bFGF in OSCC tissues and Tca8113 cells. Detection of both PTTG and bFGF may help to judge the degree of malignancy and prognosis of patients with OSCC.

关键词： carcinoma     squamous cell     pituitary tumor transforming gene (PTTG) protein     basic fibroblast growth factor    

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Genomic variations in the counterpart normal controls of lung squamous cell carcinomas

null

《医学前沿（英文）》 2018年 第12卷 第3期   页码 280-288 doi: 10.1007/s11684-017-0580-1

摘要：

Lung squamous cell carcinoma (LUSC) causes approximately 400 000 deaths each year worldwide. The occurrence of LUSC is attributed to exposure to cigarette smoke, which induces the development of numerous genomic abnormalities. However, few studies have investigated the genomic variations that occur only in normal tissues that have been similarly exposed to tobacco smoke as tumor tissues. In this study, we sequenced the whole genomes of three normal lung tissue samples and their paired adjacent squamous cell carcinomas. We then called genomic variations specific to the normal lung tissues through filtering the genomic sequence of the normal lung tissues against that of the paired tumors, the reference human genome, the dbSNP138 common germline variants, and the variations derived from sequencing artifacts. To expand these observations, the whole exome sequences of 478 counterpart normal controls (CNCs) and paired LUSCs of The Cancer Genome Atlas (TCGA) dataset were analyzed. Sixteen genomic variations were called in the three normal lung tissues. These variations were confirmed by Sanger capillary sequencing. A mean of 0.5661 exonic variations/Mb and 7.7887 altered genes per sample were identified in the CNC genome sequences of TCGA. In these CNCs, C:G→T:A transitions, which are the genomic signatures of tobacco carcinogen N-methyl-N-nitro-N-nitrosoguanidine, were the predominant nucleotide changes. Twenty five genes in CNCs had a variation rate that exceeded 2%, including ARSD (18.62%), MUC4 (8.79%), and RBMX (7.11%). CNC variations in CTAGE5 and USP17L7 were associated with the poor prognosis of patients with LUSC. Our results uncovered previously unreported genomic variations in CNCs, rather than LUSCs, that may be involved in the development of LUSC.

关键词： lung cancer     counterpart normal control     genomic variations    

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A new thinprep cytologic test of cervical cells and its application

Xiaojun ZHAO, Jingjuan WEI, Rong WANG, Yajun GU, Yunde LIU

《医学前沿（英文）》 2009年 第3卷 第2期   页码 227-229 doi: 10.1007/s11684-009-0035-4

摘要： In order to improve the quality of routine cervical smears, we investigated the new Thinprep cytologic test (TCT) for cervical cells. In this study, 100 women who were enrolled were randomly divided into two groups. In one group, the TCT for cervical cells was applied (TCT group), and in the other group routine cervical smear was used. In addition, the cells in the TCT group were screened by double sifters, and centrifuged using a separation medium so as to eliminate mucus, inflammatory cells and blood cells. According to the cell distribution and the thickness of the smear, the results were assigned to three groups, including satisfactory smears, less satisfactory smears and unsatisfactory smears. The TCT had a higher satisfactory rate (98%) compared to the routine cervical smear (32%) ( <0.01), indicating the TCT was superior to the routine cervical smear. It is concluded that the TCT is more acceptable. Meanwhile, in comparison to the routine cervical smear, the TCT for cervical cells has 5 advantages which can greatly increase the cytological accuracy.

关键词： thinprep cytologic test     cervical cells     Papanicolaou smear    

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Correlation of Twist upregulation and senescence bypass during the progression and metastasis of cervical

null

《医学前沿（英文）》 2014年 第8卷 第1期   页码 106-112 doi: 10.1007/s11684-014-0307-5

摘要：

Cervical carcinoma is associated with high propensity for local invasion and lymph node metastasis. However, the molecular alterations that drive progression and metastasis of cervical cancer remain unclear. Cellular senescence has been proposed as the mechanism that protects an organism against cancer progression and metastasis. In addition, Twist, a basic helix-loop-helix transcription factor, has been suggested as an oncogene because it is overexpressed in many types of human cancer. This gene also exhibits a positive function in regulating invasion and metastasis. In this study, Twist was strongly and positively expressed in normal tissue, squamous cell carcinoma (SCC) IA--IIA, and SCC IIB--IIIB (4.3%, 44%, and 88.9%, respectively). The strong positive expressions of the senescence marker CBX3 were 39.1%, 32%, and 15.6%, respectively. The strong positive expressions of Twist in the SCC groups with or without lymph node metastasis were 80.8% and 50%. For CBX3, such expressions were 7.7% and 29.5%, respectively. Results also showed that the expression of Twist was inversely correlated with that of CBX3. Moreover, the knockdown of Twist with target siRNA in SiHa triggered the induction of the chromatin marker of the cellular senescence CBX3 and senescence-associated β-galactosidase activity. Our results suggested that the expression of Twist increased during the progression and metastasis of cervical cancer. Furthermore, Twist-induced senescence bypass is important in this process.

关键词： cervical cancer     senescence     Twist     CBX3     lymph node metastasis    

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Development of combined transitional pavement structure for urban tram track-road grade crossings

《结构与土木工程前沿（英文）》   页码 1199-1210 doi: 10.1007/s11709-023-0949-y

摘要： The grade crossings and adjacent pavements of urban trams are generally subjected to complex load conditions and are susceptible to damage. Therefore, in this study, a novel pavement structure between tram tracks and roads constructed using polyurethane (PU) elastic concrete and ultra-high-performance concrete (UHPC), referred to as a track-road transitional pavement (TRTP), is proposed. Subsequently, its performance and feasibility are evaluated using experimental and numerical methods. First, the mechanical properties of the PU elastic concrete are evaluated. The performance of the proposed structure is investigated using a three-dimensional finite element model, where vehicle-induced dynamic and static loads are considered. The results show that PU elastic concrete and the proposed combined TRTP are applicable and functioned as intended. Additionally, the PU elastic concrete achieved sufficient performance. The recommended width of the TRTP is approximately 50 mm. Meanwhile, the application of UHPC under a PU elastic concrete layer significantly reduces vertical deformation. Results of numerical calculations confirmed the high structural performance and feasibility of the proposed TRTP. Finally, material performance standards are recommended to provide guidance for pavement design and the construction of tram-grade crossings in the future.

关键词： urban tram track     grade crossing     combined track-road transitional pavement     polyurethane elastic concrete     finite element method    

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relationship between platelet-derived growth factor expression and angiogenesis/lymphangiogenesis in cervical

Guocheng LIU MD, Shouhua YANG MD, Zehua WANG MD,

《医学前沿（英文）》 2009年 第3卷 第4期   页码 447-451 doi: 10.1007/s11684-009-0082-x

摘要： This paper is aimed to examine if changes in platelet-derived growth factor (PDGF) expression at different stages of cervical cancer are related to the variation in blood vessel density (BVD) and lymphatic vessel density (LVD) to evaluate the relationship between PDGF expression and stages and metastasis of cervical cancer. Polymerase chain reaction (PCR) and RT-PCR were used to detect the expression levels of PDGF in 45 cervical cancer tissue samples (the experimental group). The samples were immunohistochemically stained with monoclonal antibodies D2-40 and CD34, and BVD and LVD were measured. The expressions of PDGF-A, -B, and- D were all higher in the experimental group than in the control group (<0.05); no significant difference was found in the expression of PDGF-C between the experimental group and the control group (>0.05). PDGF-A and -B expression was positively related with BVD and LVD (<0.01, R= 0.49, 0.527, 0.327, 0.68). The expression levels of PDGF-C and -D were not significantly related with BVD and LVD. At the early stage of cervical cancer, BVD and LVD were significantly higher than in the controls (<0.01). The BVD and LVD in tissues in the surrounding areas of cervical cancer were significantly higher than in tissues at cancer center, and LVD was related to lymph node metastasis (<0.001). BVD and LVD were not associated with the differentiation and pathological stages of cervical cancer. The expressions of PDGF-A, -B, and -D in cervical cancer were closely related with the clinical stages of cervical cancer. PDGF-A and -B were intimately associated with the lymph node metastasis and prognosis of cervical cancer.

关键词： cervical cancer     lymphatic vessel density     blood vessel density     platelet-derived growth factor    

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标题 作者 时间 类型 操作

Triage for management of cervical high-grade squamous intraepithelial lesion patients with positive margin

null

期刊论文

Clinical significance of human papilloma virus infection in the cervical lesions

Shuang LI, Yu-Han MENG, Hu TING, Jian SHEN, Ding MA

期刊论文

Epidemiological studies of women under age 30 infected with human papillomavirus

Zhihua LIU MD, Qing LI BM, Weihong LI BM,

期刊论文

percutaneous coronary intervention of left main coronary artery disease: the importance of proper lesion

期刊论文

Molecular alterations and clinical relevance in esophageal squamous cell carcinoma

null

期刊论文

高钢级钢管和高压输送：我国油气输送管道的重大技术进步

李鹤林,吉玲康,田伟

期刊论文

Repurposed benzydamine targeting CDK2 suppresses the growth of esophageal squamous cell carcinoma

期刊论文

PD-1/PD-L1 blockade in cervical cancer: current studies and perspectives

Yumeng Wang, Guiling Li

期刊论文

Application of Grading of Recommendations Assessment, Development, and Evaluation (GRADE) to the guideline

null

期刊论文

Relative expression of PTTG and bFGF in oral squamous cell carcinoma and Tca8113

Yumei DING BM , Lili CHEN MD , Bo CHENG PhD , Handong ZHANG MM ,

期刊论文

Genomic variations in the counterpart normal controls of lung squamous cell carcinomas

null

期刊论文

A new thinprep cytologic test of cervical cells and its application

Xiaojun ZHAO, Jingjuan WEI, Rong WANG, Yajun GU, Yunde LIU

期刊论文

Correlation of Twist upregulation and senescence bypass during the progression and metastasis of cervical

null

期刊论文

Development of combined transitional pavement structure for urban tram track-road grade crossings

期刊论文

relationship between platelet-derived growth factor expression and angiogenesis/lymphangiogenesis in cervical

Guocheng LIU MD, Shouhua YANG MD, Zehua WANG MD,

期刊论文