1.Clinicopathological analysis of solitary fibrous tumor in 11 patients
Zilan ZHANG ; Xuewen GU ; Qin XIAO ; Cuimei WANG
Cancer Research and Clinic 2015;27(2):107-108,112
Objective To evaluate the clinicopathological characteristics and immunophenotype of solitary fibrous tumor (SFT),which is able to provide the basis for clinical diagnosis and prognosis,differential diagnosis and predictable prognosis.Methods Data from 11 cases of SFT were investigated by immunohistochemical.Results Histologically,SFT was composed of spindle cells,which arranged in fascicles pattern,as well as the collagen and branch vessels.Malignant SFT had higher and crowed cellularity with significant pleomorphism,numerous mitoses and putrescence.Positivity for bcl-2 and CD34 was observed in all SFT.Eight tissues showed CD99 positivity,one showed s-100 positivity,all 1 1 tissues showed Ckpan negativity.Conclusions SFT has originated from different sites,which should be distinguished with fibrosarcoma and other spindle cell neoplasms.More attentions should be paid to malignant SFT and focus on the follow-up visit.
2.Purification of patchouli alcohol in volatile oil of Pogostemon cablin by molecular distillation
Hui CHEN ; Jinwei ZHANG ; Hewei ZHU ; Zilan SONG
Chinese Traditional and Herbal Drugs 1994;0(01):-
Objective The volatile oil was further purified to get the patchouli alcohol by molecular distillation taking patchouli oil which contained 23.97% of patchouli alcohol as raw material.Methods The best process parameters,including temperature,feed rate,and scraping rate,of molecular distillation technique for separating patchouli oil were studied by orthogonal test.The content was detected by GC under the conditions of elastic quartz capillary column HP-5,detector temperature 280 ℃,gasification temperature 280 ℃,distributary refer 20∶1.The effects of evaporation temperature on content and extraction rate of the patchouli oil had been investigated and the difference between the molecular and vapor distillations was studied.Results Content and extraction rate of patchouli alcohol under the best evaporation temperature 65 ℃ by molecular distillation reached to 40.71% and 76.55%,respectively.Conclusion The molecular distillation technique that could get the product with higher purity and extracting rate than that by vapor distillation in patchouli oil purification has a very good prospect in industry.
3.Life Style of the Elderly in empty-nest Family and Need of Community Health Service in community of Shanggang
Lichang ZHU ; Tao CHEN ; Li LI ; Chao WANG ; Zilan XUE ; Xiaohong WANG ; Ying ZHANG
Chinese Journal of Primary Medicine and Pharmacy 2010;17(11):1470-1471
Objective To explore the life style of the elderly in empty-nest family and need of community health service in shanggang community.Methods Using random sampling method, a group of 634 the aged more than 60 from empty-nest family in the community were investigated with questionnaires.Results In daily activities,40.9% of the elderly empty-nest took part in physical exercise,36.3% had hobbies.Really empty-nest group had rarely physical exercise and prepared staying alone.In community health service,about 82.65% ,72.82% ,55.21% of the aged empty-nest needed regular physical examination,health guidance and psychological counseling respectively.Conclusion Life style of the elderly in empty-nest family was reasonable,and empty-nest group,especially really empty-nest group had advanced demand about the community health service.Medical staff should often carry out physical exercise and psychological counseling,and also popularize common medical knowledge.Besides,regular physical examination and paying close attention to the healthy information of the elderly in empty-nest family was needed.
4.Inhibition of the invasion and migration of hepatocellular carcinoma cells by miR-148a and the mechanisms
Xiaoqin JIA ; Junjun MIAO ; Jun YONG ; Zilan ZHANG ; Chen HUA ; Guoli LI
China Oncology 2014;(6):412-417
Background and purpose: Primary liver cancer is the malignant tumor of liver cells or intrahepatic bile duct epithelium with familiar metastasis and postsurgical recurrence. The purpose of this study was to investigate the effects of miR-148a on the invasion and migration of hepatocellular carcinoma cells and the underlying mechanisms. Methods: The supernatant containing LV-miR-148a lentivirus particles was used to infect SMMC-7721 cells. The expression of miR-148a was determined by RT-PCR. Wound healing assay and transwell assay were performed to detect the effects of miR-148a on the invasion of hepatocellular carcinoma cells. Gelatin zymography assay was used to detect the effects of miR-148a on the enzyme activities of matrix metalloproteinase-2 (MMP-2) and matrix metalloproteinase-9 (MMP-9). The expression of MMP-2, MMP-9, E-cadherin and vimentin proteins was detected by Western blot assay. Results:RT-PCR showed the expression of miR-148a was upregulated in the infected SMMC-7721 cells. Transwell assay and wound healing assay showed ectopic expression of miR-148a suppressed cell migration and invasion abilities. miR-148a overexpression led to the decrease of the enzyme activities of MMP-2 and MMP-9 (P<0.05). Western blot assay showed that the protein expression of MMP-2, MMP-9 and vimentin proteins was signiifcantly decreased, the expression of E-cadherin had no changes. Conclusion:miR-148a is able to inhibit the migration and invasion of human SMMC-7721 cells in vitro, and the possible mechanisms may be related to decrease the enzyme activities of the MMP-2 and MMP-9 and the down regulation expression of MMP-2, MMP-9 and vimentin.
5.Prevalence and antibiotic resistance proifle ofHelicobacter pylori in Shanghai
Binjie HU ; Fuju ZHAO ; Zilan CHAI ; Zhijun BAO ; Ping XIANG ; Changqing YANG ; Yifei WANG ; Yi FANG ; Yanmei ZHANG ; Hu ZHAO
Chinese Journal of Infection and Chemotherapy 2016;16(3):346-352
Objective To examine the prevalence ofHelicobacter pylori in Shanghai and relevant risk factors, evaluate the resistance proifle ofH. pylori isolates to antibiotics used in ifrst-line therapy in two hospitals in Shanghai.MethodsH. pylori were isolated from the biopsy samples of gastric mucosa collected from September 2013 to January 2015. Antimicrobial susceptibility test was performed by E-test method for 131H. pylori strains to 4 antibiotics, clarithromycin, metronidazole, amoxicillin and tetracycline. Results A total of 955 patients receiving gastroscopy were enrolled. And 248 (26.0%)H. pylori strains were isolated from the biopsy samples of gastric mucosa. Overall, 14.5%, 64.1%, 0 and 0.8% of the strains were resistant to clarithromycin, metronidazole, amoxicillin and tetracycline, respectively. Resistance to two drugs was found in 10.7%(14/131) of the strains, and majority (92.8%, 13/14) of which were resistant to clarithromycin and metronidazole.Conclusions The prevalence ofH. pylori in gastric mucosa is rather lower compared with the data reported previously. It is associated with the sex, age and clinical outcome of patients, however, antibiotic resistance profile is not related to these factors.H. pylori eradication therapy should be individualized according to the results of susceptibility test in Shanghai.
6.The value of different inflammatory indexes in early diagnosis of bacterial bloodstream infection in patients with malignant tumor
Darong ZHANG ; Guangli LUO ; Zilan LYU
International Journal of Laboratory Medicine 2017;38(18):2503-2505,2508
Objective To explore the value of procalcitonin,C-reactive protein and neutrophil percentage in early diagnosis of bacterial bloodstream infection in patients with malignant tumor.Methods Retrospectively analyzed the clinical data of 413 cases with tumor fever who were performed PCT,CRP,blood test and blood culture in the same day in our hospital from January to December in 2015.According to blood culture results,they were divided into observation group(211 cases) and control group(202 cases).The observation group was divided into Gram-negative(G-) group and Gram-positive(G+) group.The diagnostic efficacy of PCT,CRP and NEUT% on bacterial bloodstream infection was evaluated by receiver operating characteristic curve (ROC).Results The specificity of PCT in the observation group was the highest and the sensitivity of CRP was the highest.The levels of PCT,CRP and NEUT% in the observation group were significantly higher than those in the control group(P<0.05).PCT level in the G-group were apparently higher than that of G+ group(P<0.05),while CRP and NEUT% levels had no statistical significance between the two groups(P>0.05).According to ROC curve,In the observation group,The AUC of PCT,CRP and NEUT% were 0.848,0.796 and 0.718,respectively.In G-and G+ group,the AUC of PCT were 0.877 and 0.767,respectively.Conclusion PCT,CRP and NEUT% were significantly increased in the malignant patient with bloodstream infection,PCT has showed better diagnostic efficiency compared to CRP or NEUT% and better clinical value in distinguish between G-and G+ bacterial infection type.Combined detection of PCT,CRP,NEUT% can help for early diagnosing malignant tumor with bacterial bloodstream infection.
7.Correlation analysis between thrombelastography and conventional coagulation indexes in breast cancer patients
Zilan LYU ; Binlin WANG ; Bianqin GUO ; Yang ZHANG ; Lixiang WU
International Journal of Laboratory Medicine 2019;40(2):218-221
Objective To analyze the correlation between thrombelastography (TEG) and conventional coagulation indexes in breast cancer patients, and to compare the differences between the two methods in the detection of coagulation function in breast cancer patients.Methods Retrospectively analyzed the clinical data of180patients with breast cancer who were performed TEG, coagulation and blood test in the same day in our hospital from November 2016to May 2017.Linear correlation and regression analysis were performed among the parameters.The differences of positive rates of TEG parameters and conventional coagulation indexes were compared.Results The R value of TEG parameters of breast cancer patients was positively correlated with K and APTT, and negatively correlated withα-Angle, MA, CI, DD, FDPs.K was positively correlated with APTT and TT, and negatively correlated withα-Angle, MA, FIB, DD, FDPs and PLT.α-Angle was positively correlated with MA, CI, FIB, DD, FDPs and PLT.MA was positively correlated with CI, FIB, DD, FDPs and PLT.CI was positively correlated with FIB, DD, FDPs and PLT.α-Angle, MA and CI were all negatively correlated with APTT and TT, the difference were statistically significant (P<0.05).A linear regression equation of TEG parameters and coagulation indexes was obtained.There was no significant difference between TEG detection positive rate and conventional coagulation test (P>0.05).Conclusion There are significant correlation between the TEG parameters and routine coagulation or platelet, and the results are consistent.
8.Correlation study between advanced age and inferior prognosis in stage Ⅱ colorectal cancer patients
Ruoxin ZHANG ; Zilan YE ; Junyong WENG ; Xinxiang LI
China Oncology 2024;34(5):485-492
Background and purpose:With the aging population,the number of elderly patients with colorectal cancer(CRC)is increasing.To date,elderly patients with stage Ⅱ CRC often receive a weakened chemotherapy regimen or even no chemotherapy after radical surgery,and It is still unclear whether this will lead to adverse oncological outcomes.This study aimed to explore the prognostic impact of advanced age on stage Ⅱ CRC patients after removing bias through a multivariate COX regression approach.Methods:We retrospectively collected data of 3314 colorectal cancer patients with postoperative pathology of stage Ⅱ,no history of previous tumors,no secondary primary tumors within 5 years after surgery and no preoperative neoadjuvant therapy.This study was reviewed by the medical ethics committee of Fudan University Shanghai Cancer Center(ethics number:050432-4-2108*).The optimal threshold for calculating age relative to survival using survminer package of R software(version 3.0)(surv_cutpoint algorithm)was 73 years.We compared the clinical and pathological characteristics,overall survival(OS)and disease-free survival(DFS)between the older group(age>73 years)and the younger group(age≤73 years).The alignment diagram prediction model was drawn using the survival package and RMS package.Results:The elderly and non-elderly groups were evenly comparable in terms of gender,tumor location,differentiation,vascular invasion,perineural invasion and pT stage.Multivariate COX regression showed that advanced age was an independent prognostic risk factor for OS[hazard ratio(HR)=3.725(3.051-4.549),P<0.001]and DFS[HR=2.431(2.029-2.912),P<0.001].The nomogram(alignment diagram)prediction model constructed based on multivariate COX regression could effectively evaluate the prognosis of stage Ⅱ CRC patients and provide guidance for practical clinical work.Conclusion:In stage Ⅱ CRC patients,older age is associated with shorter OS and DFS.Adequate intensity of adjuvant chemotherapy may be necessary.Treatment decisions can be adjusted based on the predicted model scores of the patient's alignment diagram.
9.Clinical efficacy of AERD in the treatment of residual aortic dissection on Stanford type B aortic dissection patients after endovascular repair
Jinglong ZHANG ; Jia CHEN ; Chao LI ; Zilan SUN ; Zilin LI ; Jian ZUO
Chinese Journal of Thoracic and Cardiovascular Surgery 2024;40(6):331-334
Objective:Evaluate the safety and efficacy of aortic endovascular remodeling device (AERD) in the treatment of residual aortic dissection on Stanford type B aortic dissection patients after endovascular repair.Methods:Adopting a prospective cohort study design, according to the inclusion and exclusion criteria, a total number of 60 patients with Stanford B-type aortic dissection after TEVAR surgery from January 2022 to December 2023 were included. Collecting CTA imaging data of patients before and after endovascular treatment with AERD and using computer 3D reconstruction fluid dynamics to evaluate distal aortic remodeling.Results:The incidence of major adverse events and mortality rate associated with aortic dissection within 30 days were 0 after endovascular treatment with AERD. In the short term, AERD was safe for the treatment of residual aortic dissection on Stanford type B aortic dissection patients after endovascular repair. Endovascular treatment with AERD significantly increased the volume of the true lumen of the aorta in the dissection segment, with an increase of 88.44%. At the same time, endovascular treatment with AERD significantly reduced the volume of the false lumen of the aorta in the dissection segment, with a decrease of 61.04%. Endovascular treatment with AERD has no significant effect on the longest true lumen diameter of distal aorta of stent and upper margin aorta of superior mesenteric artery. Comparing to the longest diameter of the true lumen of the aorta, the change in the shortest diameter of the true lumen of the aorta is more significant, with the shortest diameter of true lumen of distal aortic of the stent increasing by 32.29%, the shortest diameter of true lumen of the narrowest part of the aorta increasing by 204.15%, the shortest diameter of true lumen of the upper margin aorta of superior mesenteric artery increasing by 80.76%, the shortest diameter of true lumen of the lower edge aorta of the renal artery increasing by 115.26%, the shortest diameter of the opening of the left iliac artery increasing by 152.01%, and the shortest diameter of opening of the right iliac artery increasing by144.21%.Conclusion:AERD is safe and effective in the treatment of residual aortic dissection on Stanford type B aortic dissection patients after endovascular repair. Endovascular treatment with AERD promotes true lumen dilation and false lumen reduction in the early postoperative stage and promotes benign remodeling of the distal aorta after TEVAR surgery.
10. Interactions and clinical significance of gut microbiota and levothyroxine
Jiating ZHOU ; Zilan XIE ; Zhi LI ; Jiating ZHOU ; Zilan XIE ; Zhi LI ; Jiating ZHOU ; Zilan XIE ; Zhi LI ; Jiating ZHOU ; Zilan XIE ; Zhi LI ; Xuan ZHANG
Chinese Journal of Clinical Pharmacology and Therapeutics 2023;28(11):1307-1314
Levothyroxine is a class of thyroid hormone medication mainly used in the clinical treatment of thyroid hormone replacement therapy and thyrotropin suppression therapy. In recent years, studies have found a close correlation between the human gut microbiota and the occurrence and development of thyroid diseases, as well as changes in thyroid hormone levels. Therefore, understanding the impact of levothyroxine on the gut microbiota, as well as the effects of the gut microbiota on the metabolism and absorption of levothyroxine, is of great significance for the treatment of thyroid diseases and the rational use of clinical medication. This article explores the interaction between the gut microbiota and levothyroxine and summarizes the current clinical findings of the gut microbiota in levothyroxine therapy.