OBJECTIVE:To study the relation between the level of bacterial endotoxin and the severeness of biliary tract infection METHDOS:Chromogenic technique was adopted to detect the content of bacterial endotoxin in human bile RESULTS:The level of bacterial endotoxin in human bile raised along with severeness of biliary tract infection CONCLUSION:Detection of bacterial endotoxin in bile using chromogenic technique is of help to the clinical judgement of the severeness of biliary tract infection

Objective:To explore the relationship between level of urinary iodine excretion (UIE) before 131I treatment and excellent response (ER) in low-to-intermediate risk differentiated thyroid carcinoma (DTC) patients. Methods:A retrospective analysis was performed with 432 DTC patients (124 males, 308 females, age: (42.1±11.0) years) who were treated with 131I for the first time after total thyroidectomy from June 2017 to October 2018 in Department of Nuclear Medicine, the Second Hospital of Shandong University. All patients were divided into 4 groups: G1, group 1, UIE<50 μg/L; G2, group 2, 50 μg/L≤UIE<100 μg/L; G3, group 3, 100 μg/L≤UIE<200 μg/L; G4, group 4, UIE≥200 μg/L. Patients were given 131I with a fixed dose (3 700 MBq). Response was evaluated 6 to 8 months after 131I treatment: ER, indeterminate response (IDR), biochemical incomplete response (BIR), and structural incomplete response (SIR). χ2 test and Kruskal-Wallis rank sum test were used to analyze the data. The adjusted standardized residual (residual) and Cramer′s V between G1-G4 and different treatment reactions were calculated to judge the difference among groups. IDR, BIR and SIR were classified into non-ER (NER) group, and binary logistic regression analysis and receiver operating characteristic (ROC) curve analysis were performed to find the influencing factors of treatment reactions. Results:There were 51.9%(41/79), 64.9%(98/151), 53.8%(63/117), 30.6%(26/85) patients achieved ER in G1-G4, and the proportion of G4 was significantly lower than that of G1-G3 ( χ2 values: 7.695-25.697, all P<0.05), and there was no significant difference among G1-G3 ( χ2 values: 0.072-3.667, all P>0.05). The UIE level of patients in ER, IDR, BIR, SIR group was 87.5(57.0, 129.0), 97.0(55.7, 211.5), 141.0(74.0, 231.0), 148.0(68.5, 221.0) μg/L( H=15.977, P=0.001), and there was significant difference between those of patients in ER and SIR groups ( χ2=8.729, P=0.019). There was a certain correlation between UIE levels and different treatment reactions (Cramer′s V=0.151, P=0.001). UIE (≥200 μg/L), gender and preablative stimulated thyroglobulin could be used as independent factors affecting ER ( Wald values: 4.029, 7.185, 56.301, all P<0.05). Conclusion:Among DTC patients with low-to-intermediate risk, 131I treatment does not affect ER when the UIE level is less than 200 μg/L, while 131I treatment should be performed carefully when the UIE level is more than 200 μg/L.

BACKGROUND:Large-scale expansion of undifferentiated and multipotential adipose-derived stem cells using serum-free culture system is a difficult issue to be resolved. OBJECTIVE:To establish an in vitro culture system combined with the extracellular matrix in order to investigate the efficiency, effectiveness and security of extracellular matrix on expanding adipose-derived stem cells. METHODS:In vitro isolated adipose-derived stem cells were seeded in traditional two-dimensional plastic plates and extracellular matrix-coated plates supplemented with serum-free medium respectively. After in vitro expansion, total cellnumber, expression of cellsurface markers, cellsenescence degree and multipotent differentiation ability (adipogenic, osteoblastic and chondrogenic differentiation) of adipose-derived stem cells cultured under both conditions were detected and compared. Moreover, the clinical safety of adipose-derived stem cells expanded in extracellular matrix-coated plates was investigated. RESULTS AND CONCLUSION:Total cellnumber of passage 5 adipose-derived stem cells cultured in extracellular matrix-coated plates was 10 times more than that in traditional two-dimensional plastic plates. Flow-cytometric analysis showed that adipose-derived stem cells cultured with extracellular matrix expressed stem cellsurface markers. cellular senescence examination showed that almost al of passage 15 adipose-derived stem cells cultured with extracellular matrix showed no aging, while most passage 5 adipose-derived stem cells cultured by the two-dimensional system aged and lost their proliferation ability. Multidirectional induction of adipose-derived stem cells showed that passage 15 adipose-derived stem cells cultured with extracellular matrix could stil differentiate into adipocytes, osteoblasts and chondrocytes as passage 5 adipose-derived stem cells did, which performed much better than the induced differentiations of passage 5 adipose-derived stem cells cultured by the two-dimensional system. Karyotype analysis and in vivo invasion experiment insured the clinical safety of adipose-derived stem cells expanded with extracellular matrix. Al above results suggest a safe and more efficient expansion system of extracellular matrix for clinical application using the serum-free culture system combined with extracellular matrix.

The present is aimed at identifying the activation of TRAFs in n asopharyngeal carcinoma (NPC) in vitro. The differential expression of TRAF2\,TRAF3 was not detected in RN A and protein level, whereas the expression of TRAF1 in HNE2-LMP1 cell lines wa s much more abundant than that in HNE2 cell lines, suggesting that TRAF1 may be an inducible molecule; More importantly, TRAF1, TRAF2 or TRAF3 were activated in the HNE2-LMP1 cells, whereas TRAF1, TRAF2 or TRAF3 were not activated in HNE2 cells as detected by the immunoprecipitation-Western blotting assay. These data provide an experimental basis for our study beginning from the signal transduca tion pathway for the eluccidation of the mechanism of LMP1 carcinogenesis in NP C.

To evaluate the efficacy and safety of transcatheter arterial chemoembolization (TACE) combined with radiofrequency ablation (RFA) and TACE alone for hepatocellular carcinoma (HCC), Pubmed, Cochrane Library, Web of Science, China National Knowledge Infrastructure (CNKI) and Wanfang Datebases were searched for the randomized controlled trials (RCTs) and retrospective cohort studies from the establishment of the databases to January 2014. The bibliographies of the included studies were searched, too. After study selection, assessment, data collection and analysis were undertaken, we performed this meta-analysis by using the RevMan5.2 software. Seventeen studies involving 1116 patients met the inclusion criteria with 530 treated with RFA-plus-TACE and 586 with TACE alone. The results of meta-analysis showed that the combination of TACE and RFA was obviously associated with higher 1-, 2-, and 3-year overall survival rates (OR1-year=3.98, 95% CI 2.87-5.51, P<0.00001; OR2-year=3.03, 95% CI 2.10-4.38, P<0.00001; OR3-year=7.02, 95% CI 4.14-11.92, P<0.00001) than TACE alone. The tumor complete necrosis rate in patients treated with TACE and RFA was higher than that of TACE alone (OR=13.86, 95% CI 8.04-23.89, P<0.00001). And there was a significant difference in local recurrence rate between two different kinds of treatment (OR=0.24, 95%CI 0.14-0.44, P<0.00001). Additionally, combination of TACE and RFA was associated with higher complete tumor necrosis rates than TACE mono-therapy in the treatment of HCC. However, RFA plus TACE was found to be associated with a lower local recurrence rate than TACE monotherapy. TACE-plus-RFA treatment was associated with a higher response rate (RR) than the TACE-alone treatment (OR=3.90, 95% CI=2.37-6.42, P<0.00001). TACE-plus-RFA treatment did not differ from the TACE-alone treatment in terms of stable disease (SD) rate (OR=0.38, 95% CI=0.11-1.26, P=0.11). Meta-analyses showed that the combination of RFA and TACE was associated with a significantly lower progressive disease (PD) rate (OR=0.15, 95% CI=0.05-0.43, P=0.0005). The rate of AFP reducing or returning to normal in serum in RFA plus TACE group was obviously lower than TACE alone group (OR=4.62, 95% CI 2.56-8.34, P<0.00001). The effect of TACE plus RFA for HCC is better than TACE mono-therapy. The combined therapy can elevate the patients' overall survival rate, tumor necrosis rate and the rate of AFP reducing or returning to normal in serum and decrease local recurrence rate, PD rate compared with TACE alone.

Objective To evaluate the diagnostic value of fluorescent quantitative polymerase chain reaction(PCR) for Mycoplasma pneumoniae (MP) in children with MP pneumonia(MPP).Methods From Jun.2008 to Jan.2009,153 cases hospitalized with pneumonia were enrolled,and 30 cases without respiratory infection were enrolled as control group.Their respiratory secretion (including nasopharyngeal secretion,sputum,bronchialalveolar lavage fluid or pharyngeal swab) samples were collected for fluorescent quantitative PCR for MP.And their single or paired serums were collected for specific MP antibody detection.Results There were 123 cases confirmed with MPP by serology,among whom 114 cases were MP PCR positive.The quantitation of MP DNA was among 1.20?106-3.66?1010 gene copys/L. There were 30 cases with pneumonia negative with MP by the paired serum serology,among whom 2 cases were MP PCR positive,and the quantitation of MP DNA was (1.08-3.02)?107gene copys/L.All cases of control group were MP PCR negative.During the first and second weeks of the MPP onset,the sensitivity of MP-IgM from the first single blood samples were 66.7% and 83.9%,respectively.While the sensitivity and specificity of MP PCR were 92.7% and 93.3%,respectively.From the third week of the disease onset,the sensitivity of MP-IgM from the first single blood samples increased to 90.9%-100%.The clinical manifestations of MPP were nonspecific.Conclusions PCR is superior to serology for early diagnosis on MP infection.Combination of the 2 methods may be helpful to early and accurate diagnosis on MP infection.

ObjectiveTo compare the efficacy of single-stage and two-stage revision prosthesis-relative chronic infection causing by methicillin-resistant Staphylococcus aureus(MRSA) after total knee arthroplasty(TKA) in rabbits, and evaluate the clinical feasibility of single-stage revision TKA. MethodsA new kind of prosthesis was implanted into the right knee joints of 48 New Zealand white rabbits following proper anesthesia. After 4 weeks, the dose of 5×105 colony forming unit MRSA was inoculated into every knee to establish prosthesis joint infection model. The rabbits were divided into 2 groups randomly: experimental and control group. Four weeks after inoculation, the treatments of the experimental and control group were singlestage and two-stage revision respectively. The levels of serum C-reaction protein (CRP) and Erythrocyte sedimentation rate (ESR) were monitored in ten phase, i.e. prior to primary arthroplasty and revision, at 1, 3, 5, 7days, and 2, 4, 6, 12 weeks after revision. Twelve weeks after revision, animals were sacrificed and joint samples were collected for bacterial culture. The positive results were judged as reinfection, and the negative results were judged as successful healing. ResultsFive rabbits were excluded out of the group for some reasons. The recurrence rates of infection in the experimental group and control group were 22.7％ (5/22) and 14.3％(3/21) respectively after revision. The difference between them was statistically insignificant(χ2=0.102,P=0.750). The levels of serum CRP of the two groups raised, and reached their peaks at 3 days, then dropped into the normal level prior to primary arthroplasty at 4 weeks after revision. The difference between them was statistically insignificant (F=0.157, P=0.694). The ESR levels of the two groups elevated after revision, and reached their peaks at 5 days, then declined slowly into the original level prior to primary arthroplasty at 12 weeks. The difference between them was statistically insignificant (F=0.936,P=0.339). ConclusionThough the prosthesis-relative chronic infection caused by high virulence organism after TKA, the short-term efficacy of single-stage revision is similar to that of two-stage if the stain of pathogenic bacteria and its spectrum are obtained.

Objective Neonatal lupus erythematosus (NLE) is an uncommon" passive autoimmune disease, which is associated with transplacental passage of maternal antibodies. It is often misdiagnosed as intrauterine infection or sepsis. The main purpose of this retrospective study was to summarize its clinical manifestations related with pathogenesis.Methods Data of all the NLE neonates, including clinical manifestations, immunochemical evidence of serum antinuclear antibodies (ANA), antibody to Ro/Sjogren's syndrome A ( anti-Ro/SSA), antibody to La/Sjogren' s syndrome B (anti-La/SSB) and anti-dsDNA antibodies in both infants and mothers, and images from head ultrasound and CT scans were analyzed. Follow-up was performed until one and half years of age or when all the clinical abnormalities had been resolved.Results Totally 8 cases (3 males and 5 females ) seen between September 2003 and February 2006 met the diagnostic criteria of NLE, in whom 4 were small for gestational age and one was born prematurely. Mean gestational age was (38.1 ± 1.9 ) weeks, mean birth weight (2605 ± 420) g, mean admission age (22.4 ± 27.7 ) days (2 hours-72 days) and mean age of onset (9.4 ± 12. 1)days (0-28 days). The common clinical manifestations included cutaneous lupus lesions (8 infants ), neural system abnormalities (2 infants ) and congenital heart block (2 infants). Annular, erythematous or desquamative lesions were seen in skin and all disappeared before 6 months of age. One patient presented with third degree atrio-ventricular block and was delivered by cesarean section because of " fetal distress" He did not recover by the end of one and half years follow-up. One infant was hypotonic with delayed neuro-motor development initially and during follow-up with both abnormal neonatal behavioral neurological assessment (NBNA) and imaging findings. Brain CT scan showed generalized low density involving periventricular and deep white matter at one week of age. At the age of one and a half years, he presented with normal mental development index determined by Child Development Center of China (CDCC) infant intelligence mensuration. Other abnormal clinical findings such as hepatosplenomegaly, anemia, thrombocytopenia, cholestasis and elevated liver enzyme activities were all resolved before 6 months of age. Only 3 mothers of the NLE infants were diagnosed as systemic lupus erythematosus (SLE) before parturition and only one received partial therapy. At least anti-Ro/SSA antibody or anti-La/SSB antibody or ANA was found in the affected patients. Seven cases had circulating anti-Ro and/or anti-La antibodies in the mothers and in the newborns, while ANA was positive in seven newborns and in all mothers. All the clinical symptoms disappeared before 18 months ot age except for congenital heart block. No special intervention was applied.Conclusions Serum auto-antibodies should be investigated to rule out NLE when a newborn infant has congenital heart block or rashes or thrombocytopenia, although there is no maternal history of SLE. Central nervous system abnormalities in NLE are likely to be a transient phenomenon and whether it will cause long-term sequelae is uncertain.

OBJECTIVETo observe the effect of Liuweidihuang Pills in relieving cellphone electromagnetic radiation-induced histomorphological abnormality, oxidative injury, and cell apoptosis in the rat testis.

METHODSThirty adult male SD rats were equally randomized into a normal, a radiated, and a Liuweidihuang group, the animals in the latter two groups exposed to electromagnetic radiation of 900 MHz cellphone frequency 4 hours a day for 18 days. Meanwhile, the rats in the Liuweidihuang group were treated with the suspension of Liuweidihuang Pills at 1 ml/100 g body weight and the other rats intragastrically with the equal volume of purified water. Then all the rats were killed for observation of testicular histomorphology by routine HE staining, measurement of testicular malondialdehyde (MDA) and glutathione (GSH) levels by colorimetry, and determination of the expressions of bax and bcl-2 proteins in the testis tissue by immunohistochemistry.

RESULTSCompared with the normal controls, the radiated rats showed obviously loose structure, reduced layers of spermatocytes, and cavitation in the seminiferous tubules. Significant increases were observed in the MDA level (P < 0.01) and bax expression (P < 0.01) but decreases in the GSH level (P < 0.01) and bcl-2 expression (P < 0.01) in the testis issue of the radiated rats. In comparison with the radiated rats, those of the Liuweidihuang group exhibited nearly normal testicular structure, significantly lower MDA level (P < 0.05), bax expression (P < 0.01), and bcl-2 expression (P < 0.01).

CONCLUSIONLiuweidihuang Pills can improve cellphone electromagnetic radiation-induced histomorphological abnormality of the testis tissue and reduce its oxidative damage and cell apoptosis.

Animals ; Apoptosis ; drug effects ; radiation effects ; Body Weight ; drug effects ; radiation effects ; Cell Phone ; Drugs, Chinese Herbal ; pharmacology ; Electromagnetic Radiation ; Glutathione ; metabolism ; Male ; Malondialdehyde ; metabolism ; Oxidative Stress ; Radiation-Protective Agents ; pharmacology ; Rats ; Rats, Sprague-Dawley ; Seminiferous Tubules ; drug effects ; radiation effects ; Spermatocytes ; drug effects ; metabolism ; radiation effects ; Staining and Labeling ; Testis ; drug effects ; metabolism ; pathology ; radiation effects

OBJECTIVETo establish a new method for simultaneous determination of shanzhiside methyl ester, chlorogenic acid, 8-O-acetyl shanzhiside methylester, forsythiaside B, rutin, acteoside and galuteolin in Lamiophlomis rotata.

METHODSeparation was performed on a Welchrom-C18 chromatographic column with acetonitrile-0.1% orthophosphoric acid as mobile phasewith gradient elution. The flow rate was 1.0 mL x min(-1). The column temperature was 30 degrees C, and the detection wavelength was set at 238 nm, 330 nm and 350 nm.

RESULTThe seven compounds were well separated with good linear correlations. The mean recoveries of seven compounds were 96.47%-102.2% (RSD 0.70%-2.2%).

CONCLUSIONThere were good correlations among the seven compounds in the samples of aerial parts. The mean sum of shanzhiside methyl ester and 8-O-acetyl shanzhiside methylester in samples of aerial parts is 1.44%. The aerial parts have more kinds of composition and with higher content than that of underground parts in L. rotata, which was reasonable for the resonable use of the aerial part as medicinal part. The method was simple, repeatable and stable, which could be used for identification and quality evaluation of L. rotata.

Chlorogenic Acid ; chemistry ; Chromatography, High Pressure Liquid ; methods ; Drugs, Chinese Herbal ; chemistry ; Glucosides ; chemistry ; Glycosides ; chemistry ; Lamiaceae ; chemistry ; Methyl Ethers ; chemistry ; Phenols ; chemistry ; Plant Components, Aerial ; chemistry ; Plants, Medicinal ; chemistry ; Pyrans ; chemistry ; Rutin ; chemistry