2.Expression and significance of SHP-2 in human papillomavirus infected cervical cancer.
Fei, MENG ; Xiaoyun, ZHAO ; Shulan, ZHANG
Journal of Huazhong University of Science and Technology (Medical Sciences) 2012;32(2):247-51
This study investigated the expression and prognostic value of SHP-2 in cervical cancer caused by human papillomavirus (HPV) infection. Forty-five specimens from patients with cervical cancer (stage I-III), 32 specimens from patients with cervical intraepithelial neoplasia (CIN) (I, II) and 20 normal cervical samples from patients with hysteromyoma were collected in Department of Pathology for comparison. The expression levels of SHP-2 and IFN-β proteins were detected by using immunohistochemistry. The mRNA expression level of SHP-2 was detected by using quantitative real-time polymerase chain reaction (PCR). HPVs were detected by HPV GenoArray Test. The Spearman correlation was used to compare the expression level of SHP-2 in HPV infected cervical cancer vs non-HPV infected normal cervix. The level of SHP-2 protein expression in the cancer tissues (88.8%) was significantly higher than in CIN tissues (62.5%) and normal cervixes (45%) (P<0.05 and P<0.05, respectively). The SHP-2 mRNA levels in the cancer tissues were upregulated as compared with those in the normal cervixes (P<0.05). Twenty-one (46.7%) cervical cancers, 25 (78.1%) CINs and 17 (85%) normal cervixes showed IFN-β positive staining in cytoplasm. There was statistically significant difference in the expression rate of IFN-β between cervical cancer and normal cervix (χ (2)=8.378, P<0.05) as well as between cervical cancer and CIN (χ (2)=7.695, P<0.05). HPV16/18 infections could be found in normal cervixs (15%), CINs (68.7%) and cervical cancers (84.4%). There was a correlation between HPV infection and SHP-2 expression in cervical cancer (r (s)=0.653, P<0.05). SHP-2 may be a useful prognostic and diagnostic indicator for HPV infected cervical cancer. In cervical cancers, SHP-2 mRNA and protein overexpression was associated with IFN-β lower-expression.
3.Design and implementation of information management system for field medical team
Zongran ZHANG ; Guangzhi ZHANG ; Ailan LIU ; Fei ZHAO ; Daosheng ZHU
Chinese Medical Equipment Journal 2004;0(07):-
This paper develops the field medical information management system,which realizes the informationiztion and team service management for field medical team.system to field medical team. It also provides interface program with No.1 Military Medical Project,which realizes the linking of medical treatment information about patient in field medical team and rear military hospital.
4.MRI diagnosis of myxoid liposarcoma of extremities
Zhao-Hui ZHANG ; Quan-Fei MENG ; Xiao-Ling ZHANG ;
Chinese Journal of Radiology 2001;0(01):-
Objective To explore the clinical and MR imaging features of myxoid liposarcoma.Methods Clinical and MR imaging data of 7 patients with histologically confirmed myxoid liposarcomas on extremities were retrospectively analyzed.The age of the patients ranged from 41 to 59 years with a median age of 51 years.Results Three tumors occurred in thigh,two in calf,one in foot and one in shoulder.Six tumors were situated deeply,and one was superficial.On T_1-weighted images,all 7 tumors showed predominant isointense or slightly hypointense signals relative to muscle,with 6 having lacy,linear or amorphous loci of high signal intensity.The major portion of each tumor displayed hyperintense signals compared with fat on T_2-weighted images.Following the injection of Gd-DTPA,all tumors showed inhomogenous and strong enhancement.All tumors had septa and were well defined without obvious surrounding edema and invasion of the adjacent bones.Conclusion Myxoid liposarcomas usually show predominant isointense or slightly hypointense signals relative to muscle on T_1-weighted images and hyperintense signals relative to fat on T_2-weighted images.The fat components within the tumors may be identified as linear,lacy or amorphous foci of high signal intensity on T_1-weighted images.The contrast enhancement of the mvxoid liposarcomas is usually pronounced and heterogeneous.
5.Analysis of influencing factors on adverse reaction of Shengfu injection based on prospective active safety monitoring.
Zhi-fei WANG ; Wei ZHAO ; Yin ZHANG ; Yan-ming XIE
China Journal of Chinese Materia Medica 2015;40(24):4746-4751
This study collected demographic data, past history, personal history, family history, dosage, solvent, combined medication information of adverse reaction cases from a prospective, multi center, large sample intensive hospital monitoring, and found the influencing factors with cross-tab analysis. The results showed that in the medication group of 19-45, patients with allergic histories had a higher proportion in ADR; in the medication group of 46-65, male patients with allergic histories had a higher proportion in ADR; indication and non-indication group, patients of 19-45 years old, with combined medications and allergy histories had a higher proportion in ADR; Non-indication medication group, patients with combined medication, higher concentration, out-instruction solvent and dosage, had a higher proportion in ADR. So, the ADRs of Shenfu injection were related to the history of drug allergy, and also related to the indication, dosage, solvent, concentration when it was used.
Adult
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Aged
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Drug Hypersensitivity
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etiology
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Drugs, Chinese Herbal
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adverse effects
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Female
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Humans
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Injections
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Male
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Middle Aged
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Prospective Studies
7.Effects of zinc-finger proteins and artificial zinc-finger proteins on microbial metabolisms--a review.
Zhuo LIU ; Fei ZHANG ; Xinqing ZHAO ; Fengwu BAI
Chinese Journal of Biotechnology 2014;30(3):331-340
Zinc-finger proteins have been widely studied due to their highly conserved structures and DNA-binding specificity of zinc-finger domains. However, researches on the zinc-finger proteins from microorganisms, especially those from prokaryotes, are still very limited. This review focuses on the latest progress on microbial zinc-finger proteins, especially those from prokaryotes and the application of artificial zinc-finger proteins in the breeding of robust strains. Artificial zinc-finger proteins with transcriptional activation or repression domain can regulate the global gene transcription of microbial cells to acquire improved phenotypes, such as stress tolerance to heat, ethanol, butanol, and osmotic pressure. Using the zinc-finger domain as DNA scaffold in the construction of enzymatic system can enhance the catalytic efficiency and subsequently the production of specific metabolites. Currently, zinc-finger domains used in the construction of artificial transcription factor are usually isolated from mammalian cells. In the near future, novel transcription factors can be designed for strain development based on the natural zinc-finger domains from different microbes, which may be used to regulate the global gene expression of microbial cells more efficiently.
Bacteria
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metabolism
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DNA
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chemistry
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Protein Engineering
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Transcription Factors
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chemistry
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Transcriptional Activation
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Zinc Fingers
8.Analysis of diagnosis and treatment of 40 patients with primary gastrointestinal diffuse large B-cell lymphoma
Fei WANG ; Min ZHAI ; Yayun WU ; Haitao ZHANG ; Xin ZHAO
Chinese Journal of Postgraduates of Medicine 2017;40(3):250-254
Objective To study the clinical characteristics, treatment methods and prognosis of primary gastrointestinal diffuse large B-cell lymphoma (PGI-DLBCL). Methods The clinical data of 40 patients with PGI- DLBCL were retrospectively analyzed. All the cases had received surgery treatment. Results In 40 patients with PGI-DLBCL, the major clinical presentation included abdominal pain in 15 cases (37.5%), abdominal mass in 6 cases (15.0%), abdominal discomfort in 5 cases (12.5%), abdominal distension in 5 cases (12.5%), and hematemesis in 5 cases (12.5%). Fifteen cases were misdiagnosed as gastric cancer, 5 cases as colon cancer, and 4 cases as digestive tract ulcer. The misdiagnosis rate was 60.0% (24/40). The survival rates of 1- , 2- and 3- year were 62.3%, 57.5% and 52.6%. The univariate analyses result showed that the clinical stage, international prognosis index (IPI) and treatment method were associated with survival rate (P<0.01), but the gender, age and disease distribution were not associated with survival rate (P > 0.05). The 3-year survival rate of clinical stage Ⅰ - Ⅱ was significantly higher than clinical stageⅢ-Ⅳ(68.0%vs. 13.3%), the 3-year survival rate of IPI 0-2 scores was significantly higher than 3 - 5 scores (66.7% vs. 7.6%), and the 3- year survival rate of surgery combined with postoperative chemotherapy was significantly higher than simple surgery (75.0%vs. 20.0%), there were statistical differences (P<0.01). Conclusions The patients with PGI- DLBCL have no obvious clinical manifestions and a higher misdiagnosed rate. Modified IPI, clinical stage and surgery combined with postoperative chemotherapy are the influencing factors of prognosis.
9.Effect of subconjunctival injection of mesenchymal stem cells on corneal allograft survival
Fei, LI ; Yan, ZHANG ; Yusha, RU ; Huijuan, LIU ; Shaozhen, ZHAO
Chinese Journal of Experimental Ophthalmology 2015;33(5):440-445
Background Mesenchymal stem cells (MSCs) have been applied in basic and clinical researches of organ transplantation.Our previous study showed that intravenous injection of MSCs prolonged corneal allograft survival in rat.However,the effect of local administration of MSCs on corneal allograft rejection remains unclear.Objective The aim of this study was to investigate the effect of subconjunctival injection of MSCs on corneal allograft rejection in rat model of keratoplasty.Methods MSCs were isolated and cultured from femur and tibia bone marrow of clean Wistar rats,and then the cells were identified by induced differentiation of osteoblast and adipocyte.The third generation of MSCs was used in subsequent experiment.Allogenic penetrating keratoplasty was performed with the bilateral corneas of 20 Wistar rats as donor grafts and the right eyes of 40 Lewis rats as recipients.PBS 0.1 ml containing 2 × 106 MSCs and 0.1 ml PBS only was subconjunctivally injected immediately and postoperative 3 days respectively in randomized two groups,and another 6 normal Lewis rats served as the normal control group.Corneal rejection response was evaluated under the slit lamp after surgery based corneal opacity,edema and neovascularization,and the grafts were scored according to the criteria of Larkin.The corneal samples were extracted from 12 rats of the PBS control group and the MSCs group separately 10 days after surgery.The relative expressions of Th1 cytokines (interferon-γ [IFN-γ] mRNA and interleukin-2 [IL-2] mRNA) and Th2 cytokines (IL-4 mRNA and IL-10 mRNA) were detected by real-time quantitative PCR.Protein levels of IL-4 and IL-10 proteins in the corneas were assayed by ELISA.All experimental protocols involving rats were approved by the laboratory animal care and use committee of the Tianjin Medical University and treated with the ARVO statement for the use of animals in ophthalmic and vision research.Results The cells grew well with the orange stain for alizarin red in differentiated the osteoblasts and red stain for Oil red O in differentiated adipocytes.The survival time of corneal graft in the MSCs group was (11.8±1.6) days,it was significantly longer than (9.6±1.4) days in the PBS control group (P=0.004).The levels of IL-4 mRNA and IL-10 mRNA in the MSCs group were significantly higher than those in the PBS control group (both at P =0.00);while the levels of IFN-γ mRNA and IL-2 mRNA were not significantly different between the groups (both at P>0.05).The IL-10 protein contents were (22.74 ±7.06),(68.40±12.83) and (215.41 ±44.66)pg/ml in the normal control group,PBS control group and MSCs group,showing significant difference among the three groups (F =55.06,P =0.00) and a significant increase in the MSCs group compared with the PBS control group and the normal control group (both at P < 0.05).Conclusions Subconjunctival injection of MSCs prolongs the survival time of cornea allograft in penetrating keratoplasty probably by modulating the balance between Th1 and Th2 cytokines,especially by up-regulating Th2 cytokines.
10.Comparisons of the clinical effectiveness between ultrasound-guided puncture drainage and open surgery in the treatment of pyogenic liver abscess
Fei DU ; Chengming ZHOU ; Jun CAO ; Jinming ZHAO ; Jinhui ZHANG
Chinese Journal of General Surgery 2015;30(3):201-203
Objective To compare the clinical effectiveness between puncture drainage and surgery in the treatment of pyogenic liver abscess.Methods Clinical date of 81 patients with pyogenic liver abscess were retrospectively analyzed.Patients were divided into the ultrasound-guided puncture drainage group (48 patients) and open surgical drainage group (33 patients).The demographic data,laboratory examination,efficient rate,complication rate,mortality,time for body temperature returned to normal and hospital stays were compared between the two groups.Results Klebsiella pneumoniae was positive in 45.45% cases by blood culture,and in 62.50% cases by pus culture.There was no statistically significant difference in the effective rate and mortality (x2 =0.91,2.05,P > 0.05).For patients with puncture drainage hospital stay was (14 ± 5) days,significantly shorter than (17 ± 5) days in surgery group (t =-3.20,P < 0.05).Time to normal temperature was (5.1 ± 1.6) days in puncture drainage group,which was shorter than (6.0 ± 1.1) days in open surgery group (t =-2.85,P < 0.05).Postoperative complications were fewer in the puncture drainage group (6 cases) than open surgery group (10 cases) (x2=3.91,P < 0.05).Conclusions Ultrasound-guided puncture drainage for liver abscess is safe,feasible,effective of low complication rate for the treatment of pyogenic liver abscess.