west china medical publishers
Author
  • Title
  • Author
  • Keyword
  • Abstract
Advance search
Advance search

Search

find Author "CHEN Nan" 14 results
  • Clinical findings and characteristics of FFA and ICGA in polypoidal choroidal vasculopathy

    Objective To investigate the clinical features of polypoidal choroidal vasculopathy. Methods The clinical manifestations and the findings of fundus fluorescein angiography (FFA) and indocyanine green angiography (ICGA) of 7 eyes in 6 patients with polypoidal choroidal vasculopathy were analyzed retrospec tively.Results The ophthalmoscopic examination of PCV in this series of patients revealed orange-red lesions mainly in macular region in early stage, and then hemorrhage, exudation, edema, serous and (or) hemorrhagic detachment of retinal pigment epithelium in affected portions in advanced stage, and retinal and choroidal atrophy in late stage. FFA discovered the vascular dilation at the border of the choroidal vascular network in 1 eye, dotted hyperfluorescence in 6 eyes, and patches of hyperfluorescence in late phase. ICGA disclosed a vascular branching network in choroid with polypoid pattern of the terminal path of the vessels of network in early phase in 5 eyes, and the typical dotted or clustered polypoidal hyperfluorescence in 7 eyes in late phase.Conclusion The characteristic findings of FFA and ICGA are very diagnostic for PCV. (Chin J Ocul Fundus Dis,2003,19:269-332)

    Release date:2016-09-02 06:00 Export PDF Favorites Scan
  • Clinical research progress of primary pulmonary lymphoepithelioma-like carcinoma

    Primary pulmonary lymphoepithelioma-like carcinoma (PPLELC) is a rare type of lung cancer with special characteristics of epidemiology, clinical diagnosis, treatment and prognosis. It has close relationship with Epstein-Barr virus (EBV) infection and has prominent regional feature. Most patients are young and non-smoking. There is no specificity of clinical manifestation. Most patients are asymptomatic at the time of diagnosis. As for treatment, the standard treatment for early stage disease is complete resection. Platinum-based doublet chemotherapy has been applied in locally advanced disease as the first line therapy. Due to its rarity, the treatment of advanced PPLELC is still lack of evidence of large sample randomized controlled trial. Whether target therapy or immunotherapy is effective is worth further study. This article reviews the research progress of PPLELC, to give a particular sight for clinicians and provides a better understanding of this rare tumor for researchers.

    Release date:2019-10-12 01:36 Export PDF Favorites Scan
  • Advances in genetic etiology research of congenital chest wall deformity

    Congenital chest deformity is caused by abnormal development of spine or ribs, resulting in sternal depression or protrusion. Pectus carinatum and pectus excavatum are the most common diseases in clinic, which can either be accompanied by other syndromes or exist alone. The genetic factors of congenital thoracic deformity can be related to single gene mutation, polygene mutation and chromosome aberration. Common clinical congenital thoracic deformity with syndromes, such as Marfan syndrome and Noonan syndrome, often have relatively fixed and clear pathogenic genes. The genetic pathogenesis of non-syndromic and independent congenital thoracic malformations is usually diverse, and treatments for syndromic and non-syndromic congenital thoracic deformity are different. Therefore, it is necessary for us to differentiate syndromic and non-syndromic congenital thoracic deformities in basic research, clinical diagnosis and treatment.

    Release date:2020-01-17 05:18 Export PDF Favorites Scan
  • Advances in the application of 3D printing technology in chest wall disease surgery

    Because of the characteristics such as accurate, efficient and individuation, 3D printing is being widely applied to manufacturing industry, and being gradually expanded into the medical field. Diseases of chest wall is a common type in thoracic surgery, and surgery is a proper treatment to this kind of disease. For the past few years, 3D printing is being gradually applied in surgery of chest wall diseases. The article mainly makes a statement of two parts that including the possibility to apply 3D printing including chest wall reconstruction and chest wall orthopedic, and to analyze the possibility and application prospect of applying 3D printing to the chest wall disease.

    Release date:2018-11-02 03:32 Export PDF Favorites Scan
  • Relationship of spread through air spaces and specific clinicopathological features or poor prognosis of lung adenocarcinoma: A systemic review and meta-analysis

    ObjectiveTo assess the specific clinicopathological characteristics as well as prognostic value of prognostic significance of spread through air spaces (STAS) in lung adenocarcinoma.MethodsWe systematically searched the databases of PubMed, EMbase and Web of Science databases from their date of inception to March 2019. The quality of the included literature was assessed by the Newcastle-Ottawa scale (NOS). The NOS of the study higher than 6 points was considered as high quality. Software of Stata 12.0 was used for meta-analysis.ResultsTwenty retrospective cohort studies involved with totally 6 225 patients were included. Quality of included studies was high with NOS score equal or higher than 6 points. STAS was associated with male sex, ever smoking history, abnormal carcino-embryonic antigen (CEA) level, air bronchogram negative, anaplasticlymphoma kinase (ALK) arrangement positive, epidermal growth factor receptor (EGFR) mutation positive, advanced pathological tumor stage and more invasive pathological adenocarcinoma subtypes. The presence of STAS indicated significantly poor recurrence free survival (RFS) (HR=1.960, 95%CI 1.718-2.237, P<0.001) as well as poor overall survival (OS) (HR=1.891, 95%CI 1.389-2.574, P<0.001). Further subgroup analyses showed that exhibiting tumor size including diameter less than 2 cm (HR=2.344, 95%CI 1.703-3.225, P<0.001) and diameter over 2 cm (HR=2.571, 95%CI 1.559-4.238, P<0.001), resection type including lobectomy (HR=1.636, 95%CI 1.258-2.127, P<0.001) and sublobar resection (HR=3.549, 95%CI 2.092-6.021, P<0.001) in stageⅠ adenocarcinoma suggested that STAS had a bad effect on RFS.ConclusionPresence of STAS is associated with more aggressive clinicopathological features and independently associated with worse RFS and OS in lung adenocarcinoma. STAS positive has a negative effect on RFS whatever the tumor size (including the diameter<2 cm or >2 cm) and resection types in stageⅠ adenocarcinoma.

    Release date:2019-06-18 10:20 Export PDF Favorites Scan
  • The advancements in the relationship between imaging features of lung-ground glass opacity and prognosis of lung adenocarcinoma

    With the development of technology, the detection rate of ground-glass opacity (GGO) is rapidly increasing. GGO comprises of pure GGO and mixed GGO. Many researches have studied the characteristics of GGO, and they found that different malignant probability of GGO was associated with different image characteristics. It is obvious that there is a close relationship between the image characteristics of GGO and its prognosis. However, due to the various image characteristics of GGO, it is essential to assess the prognosis of lung adenocarcinoma patients in a more comprehensive way. In this review, we summarize the correlation between the main GGO image features (solid proportion, size, mean CT value, shape characteristics) and the prognosis of lung adenocarcinoma patients, to provide clinical reference for prognosis prediction and decision-making for patients with lung adenocarcinoma.

    Release date:2019-12-13 03:50 Export PDF Favorites Scan
  • Early motor development of children with congenital muscular torticollis and analysis on its related risk factors

    Objective To investigate the early motor development and the risk factors affecting motor development in children with congenital muscular torticollis (CMT) aged 0–3 months. Methods CMT infants admitting to the Department of Rehabilitation Medicine, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine between January 1st, 2016 and April 30th, 2018 were enrolled as CMT group, and contemporaneous age-matched healthy infants were enrolled as the control group. Motor development was assessed with the Alberta Infant Motor scale (AIMS). We collected the birth weight, birth length, mode of birth, sleep position, and prone time when awake as dependent variables, and used multiple linear regression to find the variables that had significant effect on AIMS scores. Results There were 97 CMT infants (62 males and 35 females) with the mean age of (46.8±17.3) days, mean birth weight of (3.34±0.38) kg and mean birth length of (49.56±0.93) cm in the CMT group, while there were 97 healthy infants (60 males and 37 females) with the mean age of (45.1±19.4) days, mean birth weight of (3.38±0.35) kg and mean birth length of (49.84±1.03) cm in the control group, and the differences in sex, age, birth weight, birth length between the two groups were not statistically significant (P>0.05). AIMS centiles showed that 36 infants (37.1%) in CMT group had suspicious or abnormal motor development, while only 12 infants (12.4%) in the control group had; there was a significant statistical difference between the two groups (χ2=15.945, P<0.001). Multiple linear regression analysis showed that the time of prone position when awake and CMT had significant influence on the AIMS scores (F=64.851, P<0.001). Infants who had a long prone position when awake had significantly higher AIMS scores and CMT had a significantly lower AIMS scores (P<0.001). Conclusions The risk of early motor retardation in infants with CMT aged 0–3 months is higher than that in healthy infants of the same age. The decrease in prone position when awake and CMT may be the causes of delayed motor development. Clinical medical personnel and family caregivers should pay more attention to motor development and provide reasonable intervention to CMT infants.

    Release date:2018-10-22 04:14 Export PDF Favorites Scan
  • Effects of short hairpin RNA-mediated CNTN1 gene silencing on growth of transplanted tumors in nude mice

    ObjectiveTo investigate the inhibitory effect of short hairpin RNA (shRNA) mediated contactin-1 (CNTN1) gene silencing on growth of human breast cancer cell line MDA-MB-468 transplanted tumors in nude mice.MethodsEighteen nude mice (4-week-old male BALB/c) were randomly equally divided into three groups: blank control group, empty vector group, and silencing group. The MDA-MB-468 cells (blank control group), MDA-MB-468 cells transfected by nonsense shRNA (empty vector group), and MDA-MB-468 cells transfected by shRNA (silencing group) were collected in the logarithmic growth period, respectively. The subcutaneous tumor models of nude mice were prepared by the subcutaneous injection of the different group cells. The tumor growth was observed and the expressions of CNTN1 and Ki-67 proteins in the transplanted tumor were detected by the immunohistochemistry.ResultsThe xenograft models of human breast cancer cells were established successfully. The tumor growth in the silencing group was significantly slower than that of the other two groups at every 3 d point (P<0.05). The tumor volume and the tumor weight in the silencing group were significantly smaller or slighter than those of the other two groups at day 18 (P<0.05). The positive rates of CNTN1 and Ki-67 protein expressions in the tumor tissues of the silencing group were lower than those of the other two groups (P<0.05), respectively.ConclusionSilencing expression of CNTN1 gene might inhibit growth of breast cancer cell line MDA-MB-468 transplanted tumors in mude mice.

    Release date:2020-12-25 06:09 Export PDF Favorites Scan
  • Expression of contactin-1 in breast cancer tissues and its relation with prognosis of patients with breast cancer

    ObjectiveTo detect the expression of contactin-1 (CNTN1) gene in the breast cancer tissues and explore the relation between the expression and prognosis of patients with breast cancer. MethodsThe clinicopathologic data of 35 patients with breast cancer who met the inclusion criteria from January to June in 2015 in the Shaanxi Provincial Cancer Hospital were retrospectively collected. The Western blot and immunohistochemistry methods were used to detect the CNTN1 protein expressions in the 35 breast cancer tissues and their corresponding tissues adjacent to cancer and the reverse transcriptase-PCR method was used to detect the CNTN1 mRNA expression. The relation between the CNTN1 protein expression and 5-year overall survival (OS) was analyzed. ResultsThe positive rate and expression level of CNTN1 protein in the breast cancer tissues were higher than those in the tissues adjacent to cancer [65.7% (23/35) vs. 45.7% (16/35), χ2=8.235, P=0.003; 0.825±0.221 vs. 0.412±0.117, t=12.556, P<0.001], and the expression level of CNTN1 mRNA in the breast cancer tissue was also higher than that in the corresponding tissues adjacent to cancer (0.763±0.218 vs. 0.353±0.135, t=11.162, P<0.001). The positive rates of CNTN1 protein were higher in the patients with larger tumor diameter (>2 cm), lower differentiation, later TNM stage (stage Ⅲ+Ⅳ) and axillary lymph node metastasis (P<0.05). The median OS of 35 patients with breast cancer was 47.3 months, which was 36.2 months and 52.5 months in the patients with high CNTN1 expression and low CNTN1 expression (median expression of CNTN1 protein was 0.785 as critical value) respectively (χ2=4.052, P=0.049). ConclusionPreliminary results of this study suggest that overexpression of CNTN1 gene might play an important role in occurrence and progression of primary breast cancer and is related to prognosis of survival.

    Release date: Export PDF Favorites Scan
  • The impact of school breakfast programs on children's nutrition and health: a systematic review

    ObjectiveTo systematically review the impact of school breakfast on children's nutrition and health. MethodsThe PubMed, Web of Science, The Cochrane Library, EMbase, CNKI, CBM, WanFang Data and VIP databases were electronically searched to collect randomized controlled trials (RCTs) on the impact of school breakfast on children's nutrition and health from inception to June 2022. Two reviewers independently screened the literature, extracted data and assessed the risk of bias of the included studies. Meta-analysis was then performed by using RevMan 5.4 software. ResultsA total of 8 RCT, involving 8 208 children were included. The results of meta-analysis showed that compared with non-school breakfast, the school breakfast could significantly improve the rate of school attendance (RR=1.38, 95%CI 1.26 to 1.51, P<0.000 1). However, there was no statistically significant difference in height, weight, weight-for-age, height for age, energy, protein, iron, or incidence of nutritional disease between the groups. ConclusionThe current evidence suggests that school breakfast has no impact on children's nutrition and health. Due to the limited quality and quantity of the included studies, more high-quality studies are needed to verify the above conclusion.

    Release date: Export PDF Favorites Scan
2 pages Previous 1 2 Next

Format

Content