Objective To investigate the effect and mechanism of probiotic products on alpha-naphthylisothiocyanate(ANIT) induced intrahepatic cholestasis of rats.Methods Seventy-two SD rats were randomly divided into 3 groups: control group(n=8),intoxication group(n=32) and intervention group(n=32).After 3 days adapted feeding,all rats received a single intragastric administration of ANIT(200 mg/kg) to induce acute intrahepatic cholestasis.Probiotics[4.2?108/(kg?d)] was given to intervention group 2 days before ANIT was administrated.After ANIT was given,biliary flow,alanine aminotransferase transaminase(ALT),total bilirubin(TB) and gastrointestinal hormone were recorded in every 48 h till 192 h.SPSS 12.0 software was used to analyze the data.Results 1.Forty-eight hours after ANIT was gavaged,the biliary flow of intoxication and intervention groups were lowered while ALT and TB were increased.But the above observation items of intoxication group were more significantly altered than those of intervention group.Then,they all recovered gradually.Those of intervention group returned to nearly normal levels 144 h after ANIT was gavaged while those of the intoxication group recover at 192 h.2.After ANIT was gavaged,MTL of intoxication and intervention groups was lowered while vasoactive intestinal peptide(VIP) increased.But the above items of intoxication group were more significantly altered than those of intervention group.Then,they all recovered gradually and the intervention group was much more early to returned to normal levels than the intoxication group at 192 h.Conclusions Probiotics can promote the bowel movement through increasing the secretion of gastrointestinal hormone,then relieve the cholestasis.

Objective To investigate if the relative ratio between C1q and C3a, C5a had a relationship with the extent of coronary artery disease ( CAD) which had never been evaluated in humans.Methods Fifty-three patients scheduled for elective percutaneous coronary intervention ( PCI ) from February, 2016 to April, 2016 at Fuwai hospital were prospectively enrolled.According to the clinical and angiographic characters patients were divided into two groups:acute coronary syndrome ( ACS) group ( n=24), and control group (n=29, 19 patients with stable angina and 10 patients without CAD confirmed by angiography).In all individuals, fasting venous blood was collected by EDTA tubes after admission and strictly before PCI.The plasma level of C1q was measured by immune turbidimetric analysis, C3a and C5a were measured by ELISA tests.Differences between groups were assessed using t test, Mann-Whitney Utests, chi-squared test or Fisher exact test depending on the type of data respectively.Multivariate logistic regression analyses were conducted to evaluate the adjusted effect of C1q, C3a, C5a, C1q/C3a and C1q/C5a on ACS.Results Compared with control group, ACS group has an elevated circulation level of C3a (4 531.14 μg/L vs.4 179.95 μg/L, t=1.381,P=0.173) and C5a (6.44 μg/L vs.4.42 μg/L, t=0.133, P=0.108) but a decreased level of C1q (176.98 μg/ml vs.200.60 μg/ml, t=-2.022, P=0.048).The relative ratio of C1q/C3a was significantly decreased in ACS patients(4.05 ×10 -2 vs.4.97 × 10 -2 , t=-2.484, P=0.016).According to the multiple logistic regression analysis, lower relative ratio of C1q/C3a level proved to be independently associated with ACS ( OR=0.937, P=0.047, 95% CI:0.879-0.998).Conclusions The decreased relative ratio of C1q/C3a level proved to be independently associated with ACS.C1q/C3a ratio could be used as an important index reflecting the complement system homeostasis status which might have potential clinical value in evaluating the prognosis of patients with CAD.

AIM: To explored the treatment effects of retinal laser photocoagulation and the applications of color Doppler flow imaging(CDFI) in the diabetic retinopathy.METHODS: We collected 60 patients(120 eyes) with diabetic retinopathy(Ⅲ~Ⅳstage) from February 2013 to February 2014 in Anyang Eye Hospital admitted in fundus disease department.The health control (HC) group of 55 normal people was established simultaneously.Ocular blood flow velocity of the 55 normal people (110 eyes) and the 60 patients (120 eyes) was examined by CDFI of central retinal artery (CRA) and posterior ciliary artery (PCAs) using the PHILIPS HD6.Peak systolic velocity(PSV) was recorded.The examinations of CDFI, electroretinogram(ERG) and the vision were performed in pre-operation, 1,7d, 1, 3 and 6mo postoperatively.RESULTS: Compared the PSV of CRA of the DR group before and after photocoagulation to the data of the HC group, there was a significant difference(P<0.05);compared the PSV of CRA of the DR group after photocoagulation with the data before, there was a significant difference(P<0.05).Compared the PSV of PCAs of the DR group before and after photocoagulation to the data of the HC group, there was a significant difference(P<0.05);compared the PSV of PCAs of the DR group after photocoagulation with the data before, there was a significant difference at 1d postoperatively(P<0.05), there was no significant difference at 7d, 1, 3 and 6mo(P>0.05).Compared the aA and bA of ERG of the DR group before and after photocoagulation to the data of the HC group, there was a significant difference(P<0.05).Compared the aA and bA of ERG of the DR group after photocoagulation with the data before, there was a significant difference(P<0.05).Compared the aT and bT of ERG of the DR group before and after photocoagulation to the data of the HC group, there was a significant difference(P<0.05);compared the aT and bT of ERG of the group DR after photocoagulation with the data before, there was no significant difference(P>0.05).The vision of 49 cases(98 eyes) was improved 1 to 3 rows, the effective rate was 82%.The vision of 11 cases(22 eyes) remained constant.CONCLUSION: Retinal laser photocoagulation is an effective treatment to diabetic retinopathy patients, which can significantly reduce the peak systolic velocity of the central retinal artery, improve and stabilize the condition, protect visual function in long-term clinical effect.Color doppler flow imaging can observe the changes of ocular vessel flow velocity in diabetic` eyes noninvasively, repeatedly and in real time, providing a basis for clinical treatments.

Objective To investigate the mechanism of tumor necrosis factor-α (TNF)-α inhibiting osteo blastdifferentiation of mesenchymal stem cells (BMMSCs) in the pathogenesis of osteoporosis in the mouse model of systemic lupus erythematosus (MRL/lpr). Methods The femurs of MRL / lpr and C3He/HeJ mice were isolated, the bone structure were examined by hematoxylin-eosin (HE) staining. The proteins of TNF-α, NF-κB P50, bone morphogenetic protein -2 (BMP-2) and PSmad1/5/8 were measured by immunohistochemical stain. Bone marrow mesenchymal stem cells (BMMSCs) were isolated. After BMMSCs grew on the cover slips, the proteins on top of it were evaluated by immunohistochemistry stain. Moreover, the alkaline phosphatase (ALP) staining was employed for the measurement of the early osteogenic differentiation. BMMSCs together with hydroxyapatite were embedded subcutaneously in the nude mice and eight weeks later, the ectopic bone formation was evaluated. The recombinant human tumor necrosis factor receptor type Ⅱantibody fusion protein (etanercept) or normal saline was subcutaneous injected to the mice with lupus. After four weeks, the expression of these proteins was observed and the ectopic bone formation was investigated. Image-Pro plus 6.0 software was employed for imagine analysis, and Studentˊs t-test was used to test the differences between 2 independent groups. Results MRL/lpr mice showed decreased volume of cortex and the percentage of cortex to the volume of bone of MRL/lpr mice was significantly lower compared to control groups and with C3He/HeJ mice (13.96±0.25 vs 23.61±0.71, n=3, P<0.01). The protein levels of both TNF-αand NF-κB P50 on the femur of MRL/lprl mice were higher than those of the control group (0.643±0.051 vs 0.405±0.022, 0.917±0.023 vs 0.650±0.032, n=3, P<0.01). The expressions of BMP-2 on the femur of MRL/lpr mice were lower than those of the C3He/HeJ mice (0.52 ±0.03 vs 0.72 ±0.03, n=3, P<0.01). There was no difference in the expression of PSmad1/5/8 on the femur between the two groups by immunohistochemistry detection (1.264 ±0.021 vs 1.301± 0.044, n=3, P>0.05). The expressions of TNF-α and NF-κB P50 in BMMSCs of MRL/lprl mice were higher than those of the C3He/HeJ (0.184±0.021 vs 0.136±0.013, 0.132±0.021 vs 0.097± 0.014, n=3, P<0.01), while BMP-2 and PSmad were lower than those of the control group (0.128±0.013 vs 0.216±0.221, 0.115±0.023 vs 0.196±0.034, n=3, P<0.01). After 7 days of BMP-2 stimulation, the activities of ALP of BMMSCs from MRL/lprl mice were reduced detected by ALP staining and the osteoblast differentiation of these cells were decreased than BMMSCs from the control mice by HE and Masson staining. The percentage of the cortex to the volume of bone of the etanercept injection MRL/lpr mice was higher than that of the control group (21.8±1.0 vs 14.3 ±0.6, n=3, P<0.01). Moreover, the proteins of TNF-α and NF-κB P50 on the femurs of such injected mice were lower than those of the control group (0.540±0.024 vs 0.682±0.031, 0.857±0.023 vs 1.098±0.044, n=3, P<0.05), while the expressions of BMP-2 were higher than the control group (0.99±0.04 vs 0.85±0.04, n=3, P<0.05). There was no difference in the PSmad1/5/8 expression on the bone of the two group of lupus mice (0.88 ±0.08 vs 0.84 ±0.04, n=3, P>0.05). The ectopic bone formation of BMMSCs of the etanercept injected MRL/lpr mice was higher than that of the normal saline injected mice, however, it was lower than that of the C3He/HeJ mice. Conclusion TNF-α inhibits osteoblast differentiation of mesenchymal stem cells by depressing Smad signaling which may contribute to the osteoporosis of the lupus mice.

Objective To analyze the genetic characteristics and the evolution of the influenza A (H3N2) virus strains circulating in Jiangsu province between 2013 and 2014.Methods This study analyzed thirty-one representative strains of influenza A (H3N2) virus, which were isolated in different regions of Jiangsu province and during different time periods from 2013 to 2014.Results Genetic distances in nucleic acid and amino acid between a strain used for vaccine production (A/Texas/50/2012) and the 31 strains were 0.010 5 and 0.012 4.Similarities between them in nucleic acid and amino acid sequences were 97.9%-99.6% and 97.2%-99.3%.Phylogenetic analysis showed that the hemagglutinin (HA) genes of the 31 strains were divided into three different groups.Three strains isolated in 2013 and three strains isolated in 2014 belonged to Group 1 and Group 2, respectively, while the others belonged to Group 3.Three positive selection sites (237, 366 and 367) in HA protein were observed by REL model.Compared with the strain used for vaccine production, the 31 strains were characterized by amino acid substitutions (N128A/T and P198S/A) in HA protein and all of the mutations located in B-cell epitopes.The total number of mutation sites reached 24.Compared with the A/Texas/50/2012 strain, seven strains presented the glycosylation site 126NWT, and three strains showed disappeared glycosylation sites of 45NSS and 144NNS.Evaluation of vaccine efficacy for A(H3N2) virus strains showed that the vaccine efficacy was not very well.Conclusion The HA gene of A(H3N2) virus had undergone a greater variation and the vaccine efficacy was not very well in Jiangsu province during 2013 to 2014, which made the influenza A(H3N2) virus become the circulating strain.

Objective To investigate the feasibility, efficacy, safety and economy of secondary splenic pedicle trisection method in removing schistosoma cirrhosis caused the splenic function. Methods Thirty patients receiving spleen secondary structure amputation between July 2014 and September 2016 were analyzed. Results Laparoscopic splenectomy with secondary splenic pedicle transaction was successfully performed in 28 patients, whereas two Endo-GIAs were used in 2 patients. The average of operation time was (80 ± 20) min, and operative blood loss was (320 ± 10) ml. The drainage of the splenic fossa was removed (3- 4) days after operation.Postoperative hospital stay was (10.8 ± 1.2) days after operaions. No massive hemorrhage, pancreatic leakage, secondary infection, serious complications such as abscess under diaphragm and recent complication such as infection of incision occurred postoperatively. Platelet of all patients recovered in 4 days postoperatively, and patients with platelet>400 × 109/L was given oral aspirin enteric-coated metformin hydrochloride. All patients were followed up for 6 months postoperatively, and no intestinal obstruction, portal vein thrombosis and other long-term complications occurred in all patients. Conclusions The amputation of secondary structures of the spleen in laparoscopic splenectomy to remove schistosoma cirrhosis caused the splenic function is safe. It could shorten the length of hospital stay and reduce the medical cost. It is a valuable method for clinical promotion.

Hemangioendothelioma, Epithelioid ; pathology ; Humans ; Male ; Middle Aged ; Nasal Cavity ; pathology ; Nose Neoplasms ; pathology

Objective To explore the feasibility of culturing dermal papillae cells (DPC) of hu- man hair in a serum-flee medium,and to observe the growth characteristics of these cells.Methods Cell culture flasks (plates) were pretreated with fibronectin,and DPC (2nd passage) were incubated with Williams E serum-flee medium supplemented with insulin-transferrin-selenite (ITS).Cells were observed by an inverted phase-contrast microscope.Proliferation of DPC was evaluated with 3-(4,5-dimethylthia- zol-2-yl)-2,5-diphenyl tetrazolium bromide (MTT) assay and by their growth curve.Results In a serum-free medium,2nd passage DPC adhered to the flask surface within two to four hours of incubation; two to three days later,confluence,of the cells was observed,without noticeable proliferation.Four days later,cell connection was interrupted,isolated cells or cell clusters were seen,and detachment of some cells from the flask surface was observed.One to two weeks later,most cells had died.After incubation with 4% bovine serum for ten hours,cell proliferation was observed surrounding the remaining viable cell colonies. DPC growth curve showed stagnant phase and slow growth phase;however,log growth phase was not ob- served.Conclusion DPC could be successfully cultured in serum-free medium.However,the culture con- dition needs to be further optimized.

Animals ; Dentate Gyrus ; metabolism ; Epilepsy ; chemically induced ; metabolism ; Glial Fibrillary Acidic Protein ; metabolism ; Hippocampus ; metabolism ; Kainic Acid ; Male ; Mice ; Mice, Inbred C57BL ; Microtubule-Associated Proteins ; metabolism ; Neurons ; metabolism ; Neuropeptides ; metabolism

Objective To investigate the regularity of intrapulnonary lobar and segmental lymph nodes metastasis in patients with cT1N0M0 stage lung adenocarcinoma.To provide a basis for more accurate determination of N stage and indication for pulmonary segmental resection.Methods A prospective study was performed from March 2014 to December 2015.103 cases of cT1 N0M0 stage lung adenocarcinoma received lobectomy and mediastinal lymph node dissection in the thoracic surgery department of China-Japan Friendship Hospital.Intrapulmonary lobar and segmental lymph nodes were dissected and sorted carefully then sent to the pathological department with the corresponding lung specimen and other lymph nodes.Statistical analysis was carried out considering size of the lesion,imaging features,serum CEA levels,pathological subtypes and so on.Results In total 103 cases,pN0 was confirmed in 82 cases,pN1 in 15 cases,pN1 + N2 in 5 cases,and skipping-pN2 in 1 case.14 cases(93.3％) in pN1 group were detected with station 12-14 lymph node metastasis,while only 5 cases (33.3％) were detected with station 12-14 LSNs metastasis.4 cases(66.7％) in pN2 group were detected with station 12-14 lymph node metastasis,while only 1 case(16.7％) with station 13 and station 7 lymph node metastasis.If LSNs were not detected,the false negative rate of N staging could be as high as 6.1％ (5/82),The rate of missed diagnosis of lymph node metastasis might be 30％ (6/20) to N1 stations alone.41.2％ (7/17)cases with metastasis to the adjacent LSNs had been proved with metastasis to the isolated LSNs.The metastasis rate of the isolated LSNs was significantly lower(P =0.049) in pure GGNs compared with those part-solid/solid nodules.Invasive adenocarcinoma had higher metastasis rate of isolated LSNs,compared with preinvasive lesions or minimally invasive adenocarcinomas,with no statistical difference between groups (P =0.055).No significant difference in isolated LSNs metastasis rate was found between groups with different serum CEA levels(P =0.251) or tumor size(P =0.197).Conclusion Dissection of intrapulmonary lobar and segmental lymph nodes might facilitate a more accurate N stage,reduce the false negative rate of lymph node metastasis,and provide basis for more accurate assessment of prognosis and postoperative adjuvant treatment.The sampling area of lymph nodes during segmental resection should include the adjacent LSNs of the target segment.The isolated LSNs metastasis rate of cT1N0M0 stage lung adenocarcinoma with pureGGN as imaging feature is relative low,which might be suitable for segmentectomy when meeting other criteria.