1.Antitumor effects of curcumin combining with adriamycin in vitro
Xi LIN ; Jianhua XU ; Danru KE
Chinese Pharmacological Bulletin 1986;0(05):-
AIM To investigate antitumor effects of curcumin (Cur) combining with adriamycin(ADM) on human tumor cell lines in vitro . METHODS The antitumor effects of the drugs on tumor cell lines in vitro were determined with MTT method. The Jin's formula was used to analyse the effect of drug combination. RESULTS In simultaneous adiministration Cur 2 04 ?mol?L -1 ~16 29 ?mol?L -1 combining with ADM 0 70 ?mol?L -1 ~5 52 ?mol?L -1 produced a simple addition or potentiation effect. In sequential adiministration the first adiministration of ADM followed by Cur resulted in an antagonistic effect, while the change of the order of adiministration produced an simple addition effect. CONCLUSION Simultaneous adiministration of Cur and ADM produces synergistic effect but sequential adimistration of the drugs only produce a unidirectional synergistic effect.
2.Single-incision Laparoscopic Surgery Versus Conventional Multi-port Laparoscopic Surgery for Tubal Pregnancy
Chinese Journal of Minimally Invasive Surgery 2015;(12):1057-1060
Objective To study the feasibility of transumbilical single-incision laparoscopic surgery ( SILS) in the treatment of tubal pregnancy, as compared with conventional multi-port laparoscopic surgery. Methods Sixty-two patients diagnosed as tubal pregnancy undergoing laparoscopic surgery at this hospital between September 2013 and June 2014 were selected for investigation. There were 29 cases of transumbilical SILS ( SILS group) and 33 cases of conventional multi-port laparoscopic surgery ( MPLS group) . We retrospectively reviewed the medical records of all patients and analyzed the surgical outcomes, including operative time, blood loss, surgical complications and hospital stay. Results In both groups, all procedures were performed without failure.No conversion to open surgery or additional skin incision was needed.There were no differences between the SILS and MPLS groups in the operation time [(51.5 ±10.8) min vs.(47.3 ±9.4) min, t=1.637, P=0.107], the mean estimated blood loss [(15.5 ±10.5) ml vs.(18.4 ±12.2) ml, t=-0.996, P=0.323], the absolute decrease of hemoglobin from preoperative to postoperative [(14 ± 5) g/L vs.(13 ±4) g/L, t=0.874, P=0.386], the postoperative hospital stay [(3.5 ±0.9) d vs.(3.8 ±0.8) d, t=-1.390, P=0.170], and the incidence of postoperative fever (2 cases vs.3 cases, χ2 =0.000, P=1.000).Follow-up for 1-3 months ( mean, 1.8 months) in all the cases showed smooth recovery and no postoperative complications. Conclusion SILS is a feasible and safe approach in the treatment of tubal pregnancy.
3.Regulating effect of recombinant lentivirus silencing rictor gene on mTORC2/SGK1 signal pathway and pulmonary alveolar epithelial sodium ion channel
Xi ZHONG ; Ke QIN ; Daoxin WANG
Chongqing Medicine 2015;(26):3601-3604
Objective To construct recombinant lentivirus silence vector aiming at rictor gene in mTORC2 specific protein, and to investigate its regulation on mTORC2/SGK1 signal pathway and the effect on pulmonary alveolar epithelial sodium ion chan-nel,as well as the role in acute respiratory distress syndrome(ARDS)and acute lung injury.Methods The interfering vector plas-mid and empty vector plasmid of target gene rictor were constructed,which and the lentivirus packaging system were co-transfected to 293T cells.The viral supernatant was collected,centrifuged,concentrated and purified for obtaining recombinant lentivirus.The virus titer was detected and the virus was infected to A549 cells.Stable cell lines were screened.RT-PCR was used to confirm the silencing situation of target gene rictor.The expression situation of various signal indexes in this pathway was detected by PCR and Western blot.Results The recombinant lentivirus of silence gene rictor was successfully constructed and transfected to A549 cell for obtaining stable cell lines.Compared with blank and control groups,the mRNA levels of rictor,downstream SGK1 andα-,β-andγ-ENaC in the shRNA-rictor group were significantly decreased (P <0.05 ).Meanwhile,the protein levels of rictor,downstream SGK1,P-SGK andα-,β-andγ-ENaC in the shRNA-rictor group were significantly decreased compared with the other two groups(P<0.05).Conclusion Silence rictor gene has the obvious regulation effect on mTORC2/SGK1 signal pathway,meanwhile affects the expression of pulmonary alveolar epithelial cellular α-,β-and γ-ENaC at gene and protein level.It is speculated that mTORC2/SGK1 may be an important signal pathway for regulating the clearance capacity of pulmonary alveolar epithelial cells on pulmonary alveolar fluid and simultaneously affecting the pulmonary edema formation.
4.Progress of research on corneal collagen cross-linking for corneal melting
International Eye Science 2016;16(6):1060-1062
?Corneal collagen cross-linking ( CXL ) could increase the mechanical strength, biological stability and halt ectasia progression due to covalent bond formed by photochemical reaction between ultraviolet - A and emulsion of riboflavin between collagen fibers in corneal stroma. Corneal melting is an autoimmune related noninfectious corneal ulcer. The mechanism of corneal melting, major treatment, the basic fundamental of ultraviolet- A riboflavin induced CXL and the clinical researches status and experiment in CXL were summarized in the study.
5.Effect of breast serf-examination on early detection of breast cancer and its prognostic value:a meta-analysis
Xi KE ; Le XU ; Lin LI ; Xinyan CHEN ; Yongchao SHI
Chinese Journal of Health Management 2008;2(4):216-219
Objective To assess the efficacy of early detection of breast cancer and the prognostic value of breast self-examination(BSE).Methods Randomized controlled trials(RCTs)involving BSE were included the present meta-analysis based on their qualities.The pooled analysis was performed with RevMany 4.2.8.Results Three RCTs were identified and then they were included the present metaanalysis.In women who conducted a BSE.the rate of biopsy fora lump in breast was 1.27%in the first 5 years,2.47%in more than 5 years but less than or equal to 10 years,and 2.50%in more than 10 years, respectively,all of which were significantly higher than in those who could not conduct a BSE(P<0.05) There was no significant difierence in the rate of final diagnosis and the mortality for breast cancer between the two populations in any follow-up time(P>0.05).Conclusion The rate of biopsy for a lump in breast in women could be increased by a BSE.which should not have been discarded from the early detection of breast cancer completely despite it is not helpful in increasing the rate of final diagnosis and decreasing the mortality for breast cancer.
6.Hydrophidae identification through analysis on Cyt b gene barcode.
Li-xi LIAO ; Ke-wu ZENG ; Peng-fei TU
China Journal of Chinese Materia Medica 2015;40(16):3179-3182
Hydrophidae, one of the precious traditional Chinese medicines, is generally drily preserved to prevent corruption, but it is hard to identify the species of Hydrophidae through the appearance because of the change due to the drying process. The identification through analysis on gene barcode, a new technique in species identification, can avoid the problem. The gene barcodes of the 6 species of Hydrophidae like Lapemis hardwickii were aquired through DNA extraction and gene sequencing. These barcodes were then in sequence alignment and test the identification efficency by BLAST. Our results revealed that the barcode sequences performed high identification efficiency, and had obvious difference between intra- and inter-species. These all indicated that Cyt b DNA barcoding can confirm the Hydrophidae identification.
Animals
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Base Sequence
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China
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Cytochromes b
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genetics
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DNA Barcoding, Taxonomic
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Elapidae
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classification
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genetics
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Molecular Sequence Data
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Phylogeny
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Reptilian Proteins
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genetics
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Sequence Analysis, DNA
7.Expressions of estrogen receptor β1 and β2 in human thyroid neoplasms and its clinical implication
Dongling JIN ; Lei WANG ; Feng XI ; Lianxiang LI ; Ke TIAN
Chinese Journal of Endocrinology and Metabolism 2011;27(11):932-934
The expressions of estrogen receptor (ER) α,ERβ1,and ERβ2 in thyroid carcinoma,thyroid adenoma,and adjacent normal thyroid tissue were determined by RT-PCR and immunohistochemistry,and the relationship of expression levels of three ERs and the main clinical pathologic parameters were evaluated.The result showed that ERα mRNA expression in papillary thyroid carcinoma(PTC) tissues was significantly higher than adjacent normal tissue,while,ERβ2 mRNA expression in PTC tissues was significantly lower than normal tissue ( P<0.05 ).The positive expression of ERβ1 and ERβ2 in the thyroid carcinoma was related with the histological variant of carcinomas; the ERβ2 expressions were related with the lymph node metastasis and TNM staging of the carcinomas.These results suggest that the decreased ERβ2 expression may induce proliferation and carcinogenesis of thyroid follicular epithelial cells as well as progression of the carcinoma,and is a powerful prognostic indicator.
8.Influence of psychological education on the resourcefulness of perioperative breast cancer patients
Yanping DENG ; Yaqing LIU ; Xi KE ; Jia LIN ; Meihua WU
Modern Clinical Nursing 2016;15(5):6-10
Objective To discuss the influence of psychological education on the resourcefulness of perioperative breast cancer patients. Methods Two hundred breast cancer patients from a first-class hospital in Fujian province were randomly assigned to the control group, in which routine care was done, and an intervention group, in which psychological education curriculum was employed at three stages on the basis of routine care. The resourcefulness scale was used in both two groups before and after the intervention to evaluate the score of individual and social resourcefulness and the total score of resourcefulness in these two groups. Results As to the control group, the score on individual resourcefulness and the total score on resourcefulness before and after the intervention had no significant differences (P>0.05), but the difference in the social resourcefulness scores before and after the intervention was statistically significant (P<0.05). The differences in the scores on the individual resourcefulness, social resourcefulness and the total score on resourcefulness in the intervention group before and after the intervention were all statistically different (P<0.001). What′s more, the scores of individual resourcefulness, social resourcefulness and the total score of resourcefulness between these two groups after the intervention were statistically different (P<0.001) as well. The scores of the intervention group were significantly higher than those of the control one. Conclusion The psychological education can significantly improve the resourcefulness level of perioperative breast cancer patients, which can help individuals to manage stress effectively.
9.Clinical analysis of 35 cases of craniocerebral injury patients with intracranial infection *
Hong XIAO ; Ming CHENG ; Jingrui HUANG ; Xi HU ; Ke LIU
Chongqing Medicine 2013;(21):2458-2460
Objective To investigate the characteristics of pathogenic bacteria/the drug resistance/the correlated risk fators/the prophylaxis control strategy of the severe craniocerebral injury patients combined with intracranial infection .Methods The clinical data of 35 craniocerebral injury patients with intracranial infection were retrospectively analyzed .Results 35 patients′cerebrospinal fluid were separated and 54 pathogenic bacterium had been cultured ,including G+ bacterium(61 .11% ) ,the G - bacteria(33 .33% ) , fungi(5 .56% ) .The pathogenic bacteria showed a higher resistance .The single factor analysis found that the wound itself exists in-fection factors ,the postoperative drainage of incision ,liquorrhoea ,with other basic diseases ,surgery lasted for a long time (>4 h) reoperative ,surgery is placed foreign body is severe craniocerebral trauma combined with intracranial infection were the main rele-vant factors .The total effective rate was 62 .86% ,and the mortality was 11 .43% by the positive therapy .Conclusion G+ bacteria were the main pathogenic bacterium in the severe craniocerebral injury patients combined with intracranial infection .The iatrogenic factors leaded to the increase of the proportion of intracranial infection and the resistance increased year after year .The clinical in-travenous antibiotics combined intrathecal injections were beneficial to control intracranial infection ,shorten the course of treatment and enhance the curative effect .
10.Clinical characterization of patients with lymphatic malformation
Zhaolu DING ; Xi WU ; Gang SUN ; Menyun KE
Basic & Clinical Medicine 2006;0(09):-
Objective To study the clinical characteristics of lymphatic malformation(LM).Methods Clinical data of 14 cases with LM were analysed and literatures were reviewed.Results ①Among the 14 cases,6 were diagnosed as primary intestinal lymphangiectasia(PIL)and 8 as primary lymphedema(PL);②The major manifestations of PIL are symmetry edema,diarrhea,lymphocytopenia,hypoproteinemia and chylopericardium.The manifestations of PL included asymmetry edema of lower limbs and respiratory symptoms;③Directed oil-contrast lymphography and isotope techniques demonstrated absence of contrast in some lymphatic segments and blockage of chylous reflux;④White opaque spots were found on the duodenal and intestinal mucosa in the endoscopy of 6 cases of PIL indicating lacteal vessels dilation.Pathological examinations revealed intestinal lymphangiectasia;⑤Six cases of 14 patients were treated with surgical therapy and 8 cases were treated with conservative therapy including medium chain triglyceride(MCT).Conclusion LM should be diagnosed on the bases of typical clinical manifestations specific laboratory findings and by lymphography and pathology.Combination of surgical therapy and conservative therapy is recommended to treat the LM patients.