A patient diagnosed with myoepithelial carcinoma was recently treated in our department. The neoplasm was huge, located in the left maxillofacial region, blocking both eyes, impeding feeding. About one month before admission, the tumor began to bleed frequently, about 100 ml each time, causing headache, dizziness, fatigue, and cold sweats. CT showed the maximum diameter of the tumor was about 23 cm, with uneven density, and maxillofacial bone destruction. MRI revealed internal bleeding and necrosis inside the tumor. After admission, blood routine test showed erythrocyte count 3.64 x 10(12)/L(↓), hemoglobin 106 g/L(↓), hematocrit 0.320 (↓), serum iron 6.2 μmol/L(↓). After surgery, the patient recovered smoothly.
Carcinoma ; diagnosis ; surgery ; Humans ; Magnetic Resonance Imaging ; Myoepithelioma ; diagnosis ; surgery ; Nasal Cavity ; pathology ; Paranasal Sinus Neoplasms ; diagnosis ; surgery ; Paranasal Sinuses ; pathology

Objective To compare the effect of 3 models of rehabilitation service on stroke patients following hemiplegia in community.Methods 87 stroke patients were randomly divided into rehabilitation training group (n=29), intensive training group (n=30) and followed-up group (n=28). Fugl-Meyer Assessment (FMA) was used to evaluate the limbs motor function and Modified Barthel Index (MBI) was used to evaluate the activities of daily living before, 3 months and 6 months after intervention. Results There was no significantly difference in scores of FMA and MBI among the groups. Both the rehabilitation training group and the intensive training group improved in scores of FMA and MBI 3 months after intervention (P<0.01). The intensive training group and the rehabilitation training group improved further 6 months after intervention, while follow-up group had no improvement. Conclusion Stroke patients following hemiplegia can improvemotor function and activities of daily living through systematic, standard, and ongoing rehabilitation training from professionals in community.

ObjectiveTo observe the effect of the ambulation training on the typical hemiplegic gait in community.Methods50 stroke patients with typical hemiplegic gait were divided into two groups: treatment group was treated with systematic rehabilitation training, 5 times each week for 3 months, and control group accepted self-walking training. The follow-up was performed every week at home. The two groups were assessed by the timed "up & go" test, the Fugl-Meyer Assessment(FMA) and Satisfaction with Life Scale(SWLS).ResultsThe scores of the timed "up & go" test, FMA, and SWLS showed that there weren't significant difference between the treatment group and the control group 1 month after treatment; but the scores in the treatment group were obviously higher than those in the control group 3 months after treatment.ConclusionAmbulation training could improve the typical hemiplegic gait and quality of walking of stroke patients with hemiplegic gait in community.

Objective To examine the application value of reticulocyte hemoglobin content (CHr)for diagnosing iron deficiency in premenopausal women.Methods The levels of CHr,hemoglobin (Hb), mean cellular volume(MCV),red cell distribution width (RDW) were measured on the ADVIA 120 (Bayer Diagnostics) automated hematology analyzer.Transferrin saturation (TS) and ferritin (SF) were measured on chemistry analyzer.Results CHr in iron deficiency without anemia group were significantly lower than that in the healthy control group (P＜0.01)and significantly higher than that in iron deficiency anemia group(P＜0.01).CHr in anemia of chronic disease group were significantly higher than that in iron deficiency anemia group(P＜0.01).Receiver operator characteristic curve (ROC) analysis in diagnosis of iron dificiency without anemia demonstrated that the area under the curve for CHr,SF,RDW,MCV,Hb were 0.872,0.798,0.721,0.713,0.677,respectively (P＜0.01).So CHr has a better overall sensitivity than SF,Hb,MCV and RDW in the diagnosis of iron deficiency without anemia.ROC also showed that the area under the curve for Hb,RDW,CHr,SF and MCV was 1.000,0.969,0.958,0.953 and 0.926,respectively (P＜0.01) in iron deficiency anemia.Conclusion CHr is the early and sensitive predictor of iron deficiency in premenopausal women,especially for the diagnosis of iron deficiency without anemia.

Objective To reconstitute hair follicles in mice using graft chambers,and to study the effect of different cell types on hair follicle regeneration.Methods Full-thickness skin was obtained from the back of C57BL/6 neonatal mice.Then,epidermal cell suspensions were prepared by shredding epidermis after trypsinization,hair follicles and dermal cells were collected by filtration,low-speed centrifugation and density gradient centrifugation,and hair follicle epithelial cells were obtained via trypsinization of hair follicles followed by filtration.Nude mice were classified into four groups to be transplanted with epidermal cells + follicular buds,dermal cells alone,epidermal cells + follicular buds + dermal cells,follicular epithelial cells + dermal cells,respectively.The cells were implanted into the dorsal skin of nude mice using fold chambers.After the grafting,the growth of skin and hairs was observed at the grafted sites on week 1,2,4 and 8,and skin specimens were obtained on week 2,4,and 8 for histological study of hair follicles using hematoxylin-eosin staining.Results After grafting,the chambers on the back of nude mice began to shed with crust formation on week 1; stunted hairs came out and follicle-like structures were seen under the microscope on week 2 at the grafted sites,normal hairs were observed on week 4 and 8 in all the mice except for those transplanted with epidermal cells + follicular buds,and the growth of hairs in mice grafted with epidermal cells + follicular buds + dermal cells and mice grafted with follicular epithelial cells +dermal cells was superior to that in mice grafted with dermal cells alone.Conclusions Hair follicles can regenerate after hair follicle cell transplantation into dorsal chambers in nude mice.Both epidermal cells and dermal cells play indispensable roles in hair follicle reconstitution.

Objective:To observe the effect of Gegen Qinlian decoction on serum high sensitive C-reactive protein(hs-CRP)expres-sion of rats with periodontitis and atherosclerosis(P-AS).Methods:40 male Wistar rats were randomly divided into 2 groups:control group(A,n=1 0),P-AS group(B,n=30).5 rats in group A and B were used for the identification of P-AS model.Then rats with P-AS in group B were randomly divided into 5 groups(n=5)and administered with saline(B1 ),atorvastatin(B2),metronidazole (B3),atorvastatin+metronidazole(B4)and Gegen Qinlian decoction(B5)respectively for 4 weeks.Serum hs-CRP level was assayed by ELISA.Periodontal attachment loss(AL)and artery change were examined by pathology.Results:Serum hs-CRP level in group B1-5 was higher than that of group A(P<0.01 ).Serum hs-CRP level of group B4 and B5 was lower than that of group B1-3(P<0.01 ),B4 vs B5,P>0.05.The inflammation of periodontal tissues in group B2-5 was improved more than that in group B1 .AL in group B4 and B5 were lower than that in other groups(P<0.01 ),B4 vs B5,P>0.05.Histopathological observation of arteries re-vealed that there was no foam cell in group B4 and B5 ,the artery wall in group B4 and B5 was more even and muscle fibers were ar-ranged more regular.Conclusion:Gegen Qinlian decoction may decreas serum hs-CRP expression and depress the development of pe-riodontitis and atherosclerosis.

Objective:To observe the effect of Gegen Qinlian decoction on high sensitive C-reactive protein(hs-CRP)and interleu-kin-6(IL-6)in serum of the rats with periodontitis and the IL-6 expression level in periodontal tissues.Methods:45 Wistar rats were randomly divided into 2 groups:control group N(n =1 0),periodontitis model group P(n =35).After periodontitis model was identi-fied by the examination of 5 rats,the rest rats were randomly divided into 3 groups(n =1 0)and treated by gavage of saline(group P0 ), metronidazole(group P1 )and Gegen Qinlian decoction(group P2 )respectively for 4 weeks.Then all the rats were sacrificed.Serum was immediately harvested for the test of serum hs-CRP and IL-6 levels by ELISA.Attachment loss level(AL)was examined by pa-thology.IL-6 expression in periodontal tissues was examined by S-P immunohistochemistry.Results:The inflammation of periodontal tissues in P1 ,P2 were improved more than that in P0 .AL in group P2 were lower than that in other groups(P <0.05).The IL-6 expres-sion in periodontal tissues and the levels of serum hs-CRP and IL-6 of group P2 were lower than those of other groups(P <0.05).Ser-um hs-CRP level was positively correlated with IL-6 level.Conclusion:Gegen Qinlian decoction may inhibit the development of peri-odontitis by depressing the expression of serum hs-CRP and IL-6.

Objective To investigate the influence of murine cytomegalovirus(MCMV) infection on differentiation and differentiation gene expression of neural stem cells (NSCs) in vitro for studying the mechanisms of brain abnormalities calmed by congenital cytomegalovirns infection. Methods NSCs were separated from fetal BALB/c mouse and cultured and identified in vitro. The differentiation potency of NSCs was observed by immunnfluorescence. The NSCs infected by MCMV at dosage of multiplicity of infection (MOI) equaled to 5, I and 0. 1, respectively, were cultured in differentiation medium. The morphological changes of the cells were observed by inverted microscope. The ratios of NSCs and its differentiated cells were detected by flow cytometry. The expression changes of nestin, GFAP and NSE, markers of NSCs and its differentiated cells, were studied by immunofluorescence ( MOI = 1 ). The expression of early antigen (EA) of MCMV was detected to observe the infection process. Real-time RT-PCR method was employed to measure the expression levels of the key differentiation genes Wnt-3 and Wnt-7a in Wnt signal pathway of NSCs at early phage of differentiation culture. Results NSCs isolated from embryonic mouse brains could proliferate to form neurnspheres and strongly express Nestin and differentiate into NF-200 positive neurons or GFAP positive astrocytes. The NSCs of the infected groups couldn't adhere to the wall and appear differentia-tion growth, but showed swollen gradually after differentiation culture. The nostin expression of the infected groups downregulated slowly and was higher than that of the control groups ( P < 0.05 ). The GFAP and NSE expression of the infected groups were lower than that of the control groups (P <0.05). The EA of MCMV could be always detected in the cells of the infected groups. The ratios of nestin positive cells of the infected groups were higher than that of the control groups, but the ratios of GFAP and NSE positive cells of the for-mer were lower than that of the latter from 3rd to 9th day after differentiation culture ( P < 0.05 ). The levels of Wnt-3 mRNA and Wnt-7a mRNA of the infected groups were markedly lower than that of the control groups from 1st to 2nd clay and from 12th hour to 2nd day after differentiation culture respectively ( P < 0.05 ) . These changes of the infected groups became more obvious as MCMV MOI increased . Conclusion MCMV could inhibit significantly NSCs differentiate to neurons and astrocytes and lead to the decrease of dif-ferentiated cells. MCMV could inhibit or interfere with the gene expression of Wnt-3 and Wnt-7a in Wnt sig-nal pathway of NSCs. The effect that MCMV inhibited the differentiation and the differentiation gene expres-sion of NSCs showed dose-dependent with MCMV MOI. The inhibitory effect of MCMV on the differentiation of NSCs might be induced by interfering the differentiation gene expression of NSCs, which is possibly the one of primary causes of brain development disorders caused by congenital CMV infection.

In this study, microcalorimetry was adopted to establish a novel method for detecting the hemagglutination process of Radix Isatidis (Banlangen in Chinese, BLG), and to evaluate the hemagglutination activity diversity of BLG from various habitats. The hemagglutination biothermokinetics curves of positive reagent (phytohemagglutinin, PHA) and 8 batches BLG from different regions of the hemagglutination with 20% rabbit erythrocyte were recorded by microcalorimetry, then biothermokinetics parameters were abstracted, the hemagglutination utility of samples were calculated and analyzed by principal component analysis (PCA) and cluster analysis (CA), meanwhile the results were authenticated by micro-plate agglutination. It showed that the hemagglutination was an exothermic reaction, the reaction rate constant (k: 0.039-73.6 min(-1)), maximum reaction power (Pmax: -1 140.2 - 988.2 microW) and reaction enthalpy (Hi: -529.9 - 717.9 microJ) had good linear correlation with BLG extraction concentration (0.2-1.0 g mL(-1), r > 0.97), and PCA showed Pmax (531-1 335 microW) and Ht (585.2-989.2 microJ) could represent the hemagglutination activity diversity of BLG samples, just confirming with the results of micro-plate agglutination (the agglutination dilution was 3-11 respectively). According to the hemagglutination utility, the BLG samples from Good Agriculture Practice (GAP) regions, main producing area and general regions could be clustered correctly; meanwhile, the biothermokinetics curves with perfect distinctive fingerprint and specificity could give out more information for the quality control and evaluation for BLG. In conclusion, the microcalorimetry method established for detecting the hemagglutination activity of BLG samples on rabbit erythrocyte is sensitive and reliable, and could be adopted as an effective technique in detection aggulatination precisely, quantitatively and consecutively; and provide a novel approach for examining and evaluating quality for Chinese herbal medicine with aggulatinative activity such as BLG.

Objective To investigate the influence of murine cytomegalovirus ( MCMV) infection on the expression of downstream differentiation related target genes of Wnt signaling pathway in neural stem cells (NSCs) in vitro and explore the molecular mechanism of fetal encephalodysplasia caused by CMV infection. Methods NSCs were separated from fetal BALB/c mouse and cultured in vitro. The NSCs infected by MCMV at a MOI (multiplicity of infection) of 5, 1 and 0.1, respectively, were cultured in differentiation medium. The dynamic expression of the downstream differentiation related target genes ( c-myc, cyclinD1, ngn-1 and ngn-2) of Wnt signal pathway in NSCs were measured by Western blot. Real-time RT-PCR was employed to measure the expression levels of the key differentiation genes ngn-1 in Wnt signal pathway of NSCs post infection. Results The protein levels of c-myc in the infected groups were significantly lower than that in the normal control at 0.5-5 d (P＜0.05) ; At 0. 5 d and 1 d post-infection (p. i. ) , the protein levels of cyclinDl in the infected groups were lower than that in the normal control (P＜0.05). At 2 d and 3 d p. i. , the cyclinD1 expression in the infected groups was higher than that in the control group (P ＜ 0. 05). However, at 4 d and 5 d p. i. , the cyclinD1 levels in the group of the MOI of 5 were lower than in other three groups (F＜0.05). The expression of ngn-1 protein in the infected groups was reduced importantly compared with normal control at 1 -5 d p. i. ( P ＜ 0.05 ). The expression of ngn-1 mRNA in the infected groups was lower than that in the control group at all time points (P ＜ 0. 05 ). The expression of ngn-2 protein decreased at first and then increased, which was opposite to the normal control. The peak of ngn-2 expression in groups of the MOT of 0.1 and 1 occurred later and were significantly lower than that in the normal control (P ＜0. 05). No distinct peak was seen in the group of the MOI of 5. At 1 d p. i. , the expression of ngn-2 of all infected groups was significantly lower than that in the normal control ( P ＜ 0. 05 ). At 2 d p. i. , the expression of in the group of the MOI of 5 was still lower (P ＜ 0.05). While at 3 d, 4 d and 5 d p. i. , the protein levels in all infected groups were higher than that in the normal control (P ＜ 0. 05). The protein expression of these genes increased following the increase of MOI. Conclusion MCMV inhibited the protein expression of c-myc and ngn-1 in differentiated NSCs, repressed the mRNA expression of ngn-1 and caused the perturbed expression of cyclinDl and ngn-2 in a MOI-dependent manner. These data suggest that inhibition of or interference with the protein expression of downstream differentiation related target genes of Wnt signaling pathway in NSCs by MCMV may be one of the important mechanisms, by which proliferation and differentiation of NSCs are inhibited and thus fetal brain is impaired after MCMV infection.