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The local control rate of nasopharyngeal carcinoma in the period of accurate intensity modulated radiotherapy is very high. Only 10% to 20% of the patients will have local or lymph node recurrence after the first radiotherapy. Locally recurrent nasopharyngeal carcinoma is still potentially curable. However, the retreatment of locally recurrent nasopharyngeal carcinoma needs to be optimized. According to the latest clinical research evidence, we explore the recurrence pattern of nasopharyngeal carcinoma and the choice of treatment of locally recurrent nasopharyngeal carcinoma.
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Objective To investigate the clinical value of serum glycyl-proline dipeptidyl aminopeptidase(GPDA)combined with carcino-embryonic antigen (CEA),carbohydrate antigen724 (CA724),carbohydrate antigen242 (CA242) in the early diagnosis of gastric cancer.Methods Collected in Changan hospital in patients with gastric cancer and atrophic gastritis patients and healthy subjects 60 cases,by TBA-120FR biochemical analyzer glycyl-proline dipeptidyl aminopeptidase (GPDA),chemiluminescence analyzer to detect the levels of serum CEA,CA724 and CA242,analysis of single detection and joint detection and the differences between the positive rate and sensitivity.Results The detection of GPDA in gastric cancer group was significantly lower than that in atrophic gastritis group and healthy control group,the difference was statistically significant (F=69.532,P=0.000).The results of CEA,CA724 and CA242 in gastric cancer group were higher than those in atrophic gastritis group and healthy control group,the difference was statistically significant (CEA:F=59.926,P=0.001;CA724:F=51.056,P =0.001;CA242:F =72.613,P =0.000).Serum GPDA,CEA,CA724 and CA242 single detection positive rate were 70 ％,45 ％,61.7 ％ and 50 ％.Tumor markers CEA,CA724,CA242 positive rate of three joint detection was 75％.Serum GPDA and tumor markers of CEA,the positive rate of CA724 and CA242 combined detection of four was 86.7％.The positive rate of three and higher than that of single detection,the difference was statistically significant (F=49.635,P=0.003).Serum GPDA,CEA,CA724 and CA242 single detection sensitivity was 70.2 ％,50.2 ％,67.3 ％ and 53.2％.Tumor markers CEA,CA724,CA242 three joint detection sensitivity was 85.6％.Serum GPDA and tumor markers CEA,CA724 and CA242 four joint detection sensitivity was 90.3％.The sensitivity was higher than the three items and the individual tests,and the difference was statistically significant (F=52.016,P =0.001).Conclusion GPDA joint CEA,CA724 and CA242 tumor markers detection can improve the positive rate and sensitivity in early diagnosis of gastric cancer,but it will not reduce the diagnostic specificity,the clinical diagnosis of early gastric cancer has important significance and value.
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Objective The aims of this study were to determine the expression of Ki-67 and PTEN in oral adenoid cystic carcinoma( OACC) and its relationship with clinicopathological features,and to explore the re-lationship between the expression of Ki-67 and PTEN. Methods Forty cases of oral adenoid cystic carcinoma were collected from the pathological laboratory in our hospital. Another 15 cases of normal gland in patients with oral adenoid cystic carcinoma were selected as the control group. The expression of Ki-67 protein and PTEN in adenoid cystic carcinoma was detected by immunohistochemistry. Results The positive rate of Ki-67 protein in oral adenoid cystic carcinoma was 70%(28/40),which was significantly higher than that in the control group(2/15)(P<0. 05). The positive rate of PTEN in oral adenoid cystic carcinoma was 63%(25/40),which was signif-icantly higher than that in the control group 20%(3/15)(P <0. 05). They were associated with histological types,metastasis,lymph node metastasis and neural invasion,and not correlated with age,gender and tumor loca-tion. The expression of Ki-67 and PTEN in oral adenoid cystic carcinoma may have a significant correlation. Conclusion The expression of Ki-67 and PTEN in adenoid cystic carcinoma is high,and their occurrence and development in adenoid cystic carcinoma play an important role in the process of evolution and metastasis. Ki-67 and PTEN proteins may be markers of oral adenoid cystic carcinoma.
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Objective Discuss the interference of injection cefotiam on vanadate oxidation method and dry chemical method assay total bilirubin .Methods Collected 60 examples ,include total bilirubin concentration 20 examples less than 20 μmol/L ,20 examples between 150-220 μmol/L and 20 examples between 350-410 μmol/L ,add an equal volume of various concentrations of cefotiam in each case ,formulated into cefotiam final concentrations of 300 ,150 ,75 mg/L of serum samples as the test group ,add an equal volume of water in each serum samples as the control group ,determine all the samples total bilirubin concentration respectively by vanadate oxidation method and dry chemical method ,compared the interference of cefotiam on determined total bilirubin by two method ,analyze the data by SPSS13 .0 .Results Determined total bilirubin by dry chemical method ,the test group higher than the control group ,the difference was statistically significant(P<0 .05) ,at the same total bilirubin levels ,with cefotiam concentrations decreased ,increased rate of total bilirubin concentration were decreased in the experimental group .Determined total bilirubin by vanadate oxidation method ,when the total bilirubin concentration between 150 -220 μmol/L ,the test group was higher than the control group ,the difference was statistically significant(P<0 .05) .Conclusion Interference of injection cefotiam on determined to‐tal bilirubin by dry chemical method is strong ,and with the drug concentration increased ,effect is more obvious ,but determination of total bilirubin by vanadate oxidation method has almost no effect .
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Objective To analyze the clinical value of gastric bacterial cultivation in the early diagnosis of bacterial infection in preterm infants.Methods 174 preterm with risk perinatal factors of infection in NICU of Chang’an Hospital from January 2013 to December 2014 were collected,they were given the gastric juice cultivation checking in 1 hour after birth before eat-ing,watering and giving medicine.According to the clinical symptoms and laboratory test results,they were divided into the infected group and non-infected group.Their Gastric cultivation inspection was compared and analyzed in two groups.Results The positive rate of bacterial culture of gastric fluid was 40.8% (71/174),and located in the top four is Escherichia coli 30.99% (22/71),coagulase-negative staphylococci 21.13%(15/71),Staphylococcus aureus 14.08%(10/71)and group B streptococcus 8.45% (6/71).There was relation between premature infants with bacterial culture positive and meconium stained amniotic fluid,maternal infection during pregnancy,premature rupture of membranes,but not with gestational hyper-tension,fever unrelated to the mother giving birth.Conclusion There was high positive rate of gastric juice bacterial culture with a significant correlation of early onset infection.
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Objective To study the changes condition and clinical significance of serum cystatin C(Cys‐C) ,β2 microglobulin(β2‐MG) and retinol binding protein (RBP) detection in different stages of hemorrhagic fever with renal syndrome(HFRS) .Methods The levels of serum Cys‐C ,β2‐MG and RBP were detected in 22 patients with HFRS and 30 cases of healthy physical examination and the detection results were statistically analyzed by the SPSS13 .0 software .Results The serum Cys C and β2‐MG levels in every stage of HFRS were increased compared with the healthy control group(P0 .05) ,while RBP was significantly increased in the oliguria stage ,polyuria stage and convalescence stage(P 0 .05) .Conclusion β2‐MG is more sensitive than Cys‐C in the early stage of HFRS ;RBP has the clinical guidance significance in the progression of HFRS .
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Objective To understand the distribution and drug resistance of pathogens isolated from blood culture samples Chang’an Hospital from 2012 to 2014 to provide basis for rational use of antibacterial drugs.Methods The clinical date of distribution,changes and drug resistance of main pathogens in blood culture samples during 2012 and 2014 in chang anhospi-tal were retrospectively analyzed.Results 512 pathogenic bacterial strains were isolated from 4 792 blood culture samples in 2012~2014.Among them,gram-negative bacteria accounted for 62.50% (320/512),Escherichia coli ,Klebsiella pneumoni-ae and Pseudomonas aeruginosa accounted for 25.20% (129/512),14.26% (73/512)and 8.20% (42/512)respectively;Gram-positive bacteria accounted for 29.30% (150/512),Staphylococcus aureus and Coagulase-negative Staphylococcus ac-counted for 11.52% (59/512)and 10.16% (52/512)respectively.The rate of fungi was 7.62% (39/512).Susceptibility re-sults showed that Escherichia coli and Klebsiella pneumoniae had highly sensitive to carbapenems,but had a varying degrees of resistance to other antibacterial drugs.The rate of drug resistant of Gram-positive cocci to Penicillin,Erythromycin and Clindamycin had been a high level,but no strains being resistant to van comycin and linezolid had been detected.Conclusion The pathogens causing bloodstream infection widely distribute,and have highly drug-resistant.It is necessary to under-stand the distribution of pathogens isolated from blood culture as well as the changes of drug resistance in a timely manner so as to guide the reasonable clinical medication.
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Objective To explore the diagnostic significance of C reactive protein(CRP)in diagnosing haemorrhagic fever with renal syndrome(HFRS).Methods 96 cases of patients with HFRS of different stages were enrolled in this study,and serum speci-men were collected.30 cases of patients with fever of unknown origin(fever of unknown origin group)and and 30 healthy individu-als(healthy control)were selected as control.Serum levels of CRP,alanine aminotransferase(ALT),aspartate amino-transferase (AST),creatine phosphokinase(CK),lactate dehydrogenase(LDH)and creatinine(Cr)were detected.Results Serum levels of CRP in patients with HFRS of different stages were lower than that in the fever of unknown origin group,had statistically significant differences(P <0.05).The variation trend of CRP in each stage of HFRS was consistent with the trend of AST,CK,LDH and Cr. Conclusion CRP has clinical significance in differentiating HFRS from fever of unknown origin.
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Objective To study the clinical significance of detecting the levels of homocysteine,lipoprotein(a)and high sensi-tivity C-reaction protein in serum from patients with diabetes mellitus.Methods Serum Hcy,Lp(a)and hsCRP levels were detected from 30 patients of diabetes mellitus with microangiopathy,and 30 patients of simple diabetic,45 heslthy individuals as normal controls,all the data were analysed by SPSS13.0 software.Results The levels of Hcy,Lp(a)and hsCRP in dia-betes mellitus with microangiopathy group were higher than that of normal controls and simple diabetic group.In all groups, the positive rate of Lp(a)was highest (P<0.05).Detecting the serun Hcy combined with Lp(a)and hsCRP had higher positive rate then single detecting (P<0.05).Conclusion The generation and development of diabetes mellitus were corre-lated with the serum levels of Hcy,Lp(a)and hsCRP.Detecting the serum Hcy combined with Lp(a)and hsCRP have more clinical significance than single detecting.Serum Hcy,Lp(a)and hsCRP level has the remarkable significance to diagnosis and prediction diabetes mellitus with microangiopathy.
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The etiology of nasopharyngeal carcinoma is still not very clear.Epigenetics is proved to play an important role in the occurrence and development of nasopharyngeal carcinoma (NPC).Detection of epigenetics can serve as molecular index of NPC,and it is advantageous to the prognosis and disease of NPC.Different intervention measures in the epigenetics can be used as a new treatment of NPC,as well as the development of new NPC radiotherapy sensitization agent and new drugs.Study of epigenetics changes in nasopharyngeal carcinoma provides a new idea for the diagnosis and treatment in NPC and so on.
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Objective:To construct the recombinant prokaryotic plasmid to express HCV HLA-A2 restricted multi-CTL epitopes and to purify the fused protein for antigenic analysis.Methods:The human ubiquitin gene and multi-CTL epitopes gene was synthesized respectively,and digested by restrict enzyme before being cloned into pRSET-A.Then it was transformed into E.coli DH5α and the positive recombinant plasmid named pRSET-Ub-Mep was sequenced.Target protein was distinctly expressed after transformed into E.coli BL21 and induced with IPTG.Thus the protein was scanned and purified on Ni~(2+)-NTA column as well as Western blot performed after solubility analysis.Results:The recombinant plasmid pRSET-Ub-Mep was successfully constructed and it could efficiently express the target gene.Protein production was mainly in inclusion body and could be purified through Ni~(2+)-NTA column.The purified protein kept the antigen activity.Conclusion:The gene encoding for HCV HLA-A2-restricted multi-CTL epitopes is efficiently expressed and the target protein is purified,which establishes a foundation of further research to evaluate the cellular immune response induced by the target gene.
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Objective To observe the clinical effect of cinobufagin injection by transcatheter arterial chemoembolization (TACE) combined with intravenous on treating primary liver cancer (PLC).Methods 47 patients with moderate and advanced primary liver cancer were randomly divided into treatment group (23 patients) and control group (24 patients). The AFP, laboratory tests of liver function, quality of life, the size of tumor were observed before and after treatment.Results The laboratory tests of liver functionsuch as ALT and GGT decreased obviously in the treatment group (P=0.021,P=0.032). The level of AFP decreased significantly after treatment in thetreatment group (P=0.015). The quality of life of the treatment group was better than that of control group (P=0.030).Conclusion The treatment for PLC with cinobufagin through Transcatheter arterial chemoembolization (TACE) combined with intravenous can not only inhibit the proliferation of cancer, but also protect liver function and improve quality of life. It is an effective method for patients with PLC who have miss the surgical chance.
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Objective To explore the feasibility of fluorescence quantitative PCR(FQ-PCR)in prenatal diagnosis of the fetal RhD genotyping using free DNA from RhD-negative pregnant women.Methods The fetal RhD gene was amplified from 78 RhD-negative pregnant women with single fetus maternal plasma (gestation from 11 to 40 weeks).Rhe existence of fetal DNA was confirmed by amplification ofnine different polymorphic short tandem repeat loci(STR)and sex-determining region Y chromosome(SRY)gene.Exon5,7,10 and intron 4 were amplified by real-time polymerase chain reaction with TaqMan probe.The results of fetal RhD genotyping were evaluated retrospectively by the serologic analysis of infant cord blood.Results Among the 78 specimens,the SRY positive signals were detected from samples of 41 and were all identified male fetal through 8ex observation after newborn infants delivered from the women enrolled.The mean concentration of SRY gene reached(214.7±120.9)eopies/ml.RhD genotyping results of 70 cases were in complete concordance with the resets through serological detection of fetal cord blood after delivery.In addition,5 cases were false-positive.3 cages were considered inconclusive.The coincidence rate was 90%(70/78).From 5 false-positive cases,4 cases were identified as RhDel phenotype by detecting RHDl227A allele gene.The final accuracy rate of FQ-PCR was 95%(74/78)in the fetal RhD genotyping.Conclusion FQ-PCR analysis for noninvasive prenatal of fetal RhD genotyping could be useful in prevention and diagnosis of hemolytic disease of newborn.
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Objective:To evaluate the therapeutic methods of sensorineural hearing loss with iron deficiency anemia and their effects. Method:Sixty-eight Wistar rats were randomly divided into 3 groups: Group A (iron deficiency group A) 24 rats, group B (iron deficiency group B) 24 rats and group C (control group) 20 rats. Group A and B were fed with iron deficiency diet for 6 weeks. By analyzing ABR and DPOAE, hearing loss was detected in group A and B. Then,group A was given iron supplementation diet and hyperbaric oxygen therapies. and group B was given iron supplementation diet only. Result:The auditory thresholds and period latencies (PL) of I waves of ABR and DPOAE amplitude in 2 kHz and 3kHz within group A and B were significantly different before and after treatment (P＜0.05). But the effects of treatment between these two groups had not significant differences (P＞0.05). Conclusion: It suggested that good results can be obtained by early iron supplementation in iron deficiency hearing loss cases. Hyperbaric Oxygen therapy may not be necessary.