Objective To analyze the relationship of serum levels of TSH,thyroid peroxidase antibody(TPOAb) and thyroglobulin antibody(TGAb) with cytopathologic changes of thyroid fine needle aspiration(FNAB) in autoimmune thyroiditis(AIT).Methods Totally 82 cases of cytologically confirmed AIT including 75 females and 7 males were collected.Levels of TSH,TPOAb and TGAb were tested.After execution of FNAB,features of the cytopathology were observed.Results ① The percentage of positive TPOAb and TGAb were 91.4% and 74.4%,respectively in all the AIT patients.47.6% of the patients had TSH levels within normal range(0.3～5 mu/L).② All of the slides had different grades of lymphocytic infiltration.49.3% had germinal center,32.8% had Askanazy cells,26.9% had plasma cells,22.4% had colloid,and 9% had multinuclear giant cells.③ Lymphocytic infiltration was divided into four degrees.The levels of TSH and TPOAb increased significantly in the extremely heavy lymphocytic infiltration grade than in the others(P

BACKGROUND:Acel ular tracheal matrix is similar to the native trachea with structure and biological performance preserved after decel ularization, and it is an important aim in tissue engineering to find an effective method of decel ularization.
OBJECTIVE:To select the optimal decel ularization method through comparing chemical extraction method with detergent-enzymatic method for preparing rabbit tissue engineering trachea matrix.
METHODS:Thirty tracheas from New Zealand white rabbits were randomly divide into three groups. Twenty of rabbit tracheas were subjected to decel ularization using 2%TritonX-100 combined with deoxyribonuclease I and ribonuclease (chemical extraction method group), and sodium deoxycholate combined with deoxyribonuclease I (detergent-enzymatic group), respectively. The other ten were given no intervention as controls. Samples were col ected and observed by hematoxylin-eosin staining, Masson-trichrome staining, safranin O staining, DAPI staining and scanning electronic microscope.
RESULTS AND CONCLUSION:Hematoxylin-eosin staining demonstrated that compared with the control group, almost al cel ular components of the mucosal epithelium were removed in the detergent-enzymatic and chemical extraction groups, and there were few remnant chondrocytes. Masson-trichrome staining indicated that compared with the control group, components of the mucosal layer chondrocytes in the chemical extraction and detergent-enzymatic groups were completely removed, with only part of remained chondrocytes in the cartilage zone. Glycosaminoglycan was slightly decreased both in the chemical extraction and detergent-enzymatic groups shown by Safranin O staining, but more reduction was found in the chemical extraction group. DAPI staining reveled that only a smal amount of cartilage cel s remained in the dense layer of cartilage and lacuna both in this two methods. Scanning electronic microscope showed that using the detergent-enzymatic method there were the hierarchical structures of native trachea, but slight disruption using the chemical extraction method. In conclusion, decel ularized rabbit trachea matrix obtained by detergent-enzymatic method is better, with little disruption to the matrix.

Aim To study the effect of high salt diet during pregnancy on the development of renal vessels in offspring rats and its mechanism.Methods Natural pregnant Sprague-Dawley rats were randomly divided into high-salt group and control group.The pregnant rats in the high-salt group were given high-salt diet of 8% NaCl content , while the control group normal diet with 1% NaCl content.In both groups, pregnant rats were given normal drinking water.After delivery, all mothers returned to normal diet and all neonatal rats were breast-fed until one month old.The adult male off springs were used as experimental animals.The vessel tone of renal interlobar arteries and electrophysiological behavior of single vascular smooth muscle cells (VSMCs) were detected respectively.Results The contractile response of renal arteries to phenylephrine(Phe) in high-salt group was stronger than that in the control group(P<0.05).The effect of protein kinase C(PKC) non selective blocker GF109203X on Phe-induced contraction in two groups also showed significant difference(P<0.05).In electrophysiology experiments, Phe inhibited high-conductance Ca2+-activated K+ channel(BK channel) currents in renal arteriolar smooth muscle cells in two groups, and the inhibitory effect was more pronounced in high-salt offsprings (P<0.05).GF109203X could eliminate the response of Phe on BK currents in both groups(P>0.05).Conclusions High-salt diet during pregnancy could increase the sensitivity of renal interlobar arterial contractile response to Phe in adult male offsprings, which is associated with PKC-mediated BK channels pathway.Maternal high-salt diet during pregnancy may increase the risk of renal vascular diseases in adult offsprings.

OBJECTIVE To investigate the clinical features and causes of nosocomial infection in schizophrenics with tuberculosis so as to take effective measures for better prevention and treatment.METHODS A retrospective investigation was used to analyze the clinical features and causes of nosocomial infection in 207 schizophrenics with tuberculosis.RESULTS The rate of nosocomial infection in schizophrenics with tuberculosis was 39.13%.The main infection way was via respiratory tract,followed by skin,soft tissue and gastrointestinal tract.The period and degrees of tuberculosis,the history of smoking,psychiatric symptoms and the complications were the causes of nosocomial infection.CONCLUSIONS Controlling psychiatric symptoms actively,preventing and treating somatic complications,using antibiotics rationally and less or no smoking are the effective measures to avoid nosocomial infection in schizophrenics with tuberculosis.

Objectives To analyze the expression of fibroblast growth factor-19(FGF-19) in hepatocellular carcinoma ( HCC) and adjacent tissues , and to investigate its clinical significance .Methods A total of 209 HCC patients who had undergone radical resection operations at Hospital 401 between January 2003 and December 2009 were chosen as samples . Immunohistochemistry method was employed to examine the expression level of FGF-19 in HCC and adjacent tissues .The relationship between FGF-19 protein expressions and clinicopathological features was analyzed by the chi -square test or Fisher exact probability .A survival curve was drawn using the Kaplan-Meier method and the Cox model was used to analyze factors that influenced survival .Results The rate of high expression of FGF-19 was 66.1% (138/209) in HCC, which was significantly higher than 46.9%(98/209) in adjacent tissues (P<0.05).The high expression of FGF-19 was related to the tumor capsule and tumor boundary (P<0.05).The overall survival in high expression of FGF-19 group was signifi-cantly lower than that in low expression group (P<0.05).Conclusion FGF-19 plays an important role in the carcinogen-esis and development of HCC , and a high expression of FGF-19 might be closely related to survival time of postoperative patients.FGF-19 might be a potential prognosis prediction factor for HCC .

The main active components in Ginkgo biloba extracts were Ginkgo biloba flavonoids and lactone compounds. This pa-per reviewed on the kinds and pharmacological effects of the active ingredients in Ginkgo biloba extracts, and focused on four aspects including controlled-release preparations, solubilized solid preparations, nanoparticle formulations and time- and site-specific formula-tions to introduce the development in the new dosage forms of Ginkgo biloba flavonoids and lactone compounds.

Sudden visual loss is a group of diseases of retina, with emotional factors being an important pathogeny. On the basis of summarizing the relationship between the psychological features of the sudden visual loss and seven emotional factors, we explore the application of the seven emotional factors in sudden visual loss, in order to treat a disease by looking into both its body and mind and enhance its therapeutic effects.

Objective To construct a recombinant plasmid DNA containing herpes simplex virus type 1(HSV-1) glycoprotein D (gD) gene.Methods The HSV-1 gD gene was obtained by polymerase chain reaction (PCR) and inserted into TA cloning vector pGEM-T, then cloned into the eukaryotic expression vector pcDNA3.1 to generate pLy-D. The recombinant plasmid pLy-D, which was confirmed by partial sequencing and restriction endonuclease analysis, was transfected into Cos-7 cells and used to inoculate ICR mice via muscular injection. Immunohistochemistry and enzyme-linked immunoabsorbent assay (ELISA) were employed to test the gD expression in transfected cells and the specific anti-HSV-1 antibody in the serum of immunized mice, respectively.Results The gD eukaryotic expression plasmid pLy-D was constructed. Using the immunohistochemistry technique, the gD expression in pLy-D-transfected cells was detected. The ELISA demonstrated that specific anti-HSV-1 antibody could be induced in immunized mice after three times injection.Conclusions We constructed HSV-1 gD eukaryotic expression plasmid pLy-D which could express gD protein in transfected cells and could induce humoral immune response in mice. This observation will be helpful in designing HSV prophylactic vaccine.

Objective To investigate intraoperative changes of internal environment in infants undergoing living related liver transplantation (LRLT), and to explore appropriate treatment measures. Methods Twenty-five infants undergoing LRLT were retrospectively studied, including 12 males, 13 females, with age of (3. 4 ± 4. 6) months (ranging from 2-11 months), weight of (6. 8 ±1. 3) kg (ranging from 3. 1-8. 8 kg). Arterial blood samples were collected before the operation, at preanhepatic phase (5 min before cross-clamping), at anhepatic phase (5 min before opening inferior vena cava), 5 and 30 min after the opening inferior yena cava respectively, and at the completion of the surgery the pH value, bases excess (BE), the levels of sodium, potassium, calcium, glucose and lactate were determined. Results There were large fluctuations to the internal environment during operation. Compared with the preoperative values, the intraoperative concentrations of Na+ had no significant change; The pH value and blood level of K+ had no significant change at pre-anhepatic phase and anhepatic phase (P＞0. 05), the pH value was decreased at anhepatic phase Ⅰ (P＜0. 01 )and returned to the preoperative level at the end of the operation, and the blood level of K+ decreased at anhepatic phase and lasted till the completion of the surgery (P＜0. 01 ). The blood level of Ca2+ was decreased at pre-anhepatic phase and neohepatic phaseⅡ (P＜0. 05), and recovered at the end of the operation. Blood glucose concentration was increased significantly at preanhepatic phase to neohepatic Ⅱ, and still kept at the higher level until the end of operation. The lactate concentrations were increased significantly at pre-an.hepatic phase to neohepatic Ⅱ (P＜0. 01 ), and recovered at the end of operation. The BE was decreased at pre-anhepatic phase to neohepatic Ⅱ (P＜0. 05), and recovered at the end of the operation. Conclusion There are significant disruptions which are unique and inter-related to the internal environment parameters in infants during the operation of LRLT.Monitoring and accurate intraoperative managements for different physiological status at different phases are critical for the success of LRLT in infants.

Objective To evaluate the role of 5-HT5A receptors (5-HT5A R) in activation of astroglia in the spinal dorsal horn in a rat model of neuropathic pain induced by vincristine. Methods Forty adult male SD rats weighing 180-200 g were randomly divided into 4 groups ( n = 10 each): control group (group C);neuropathic pain group (group P);Ad-X-HK group (group B) and Ad-5-HT5A-siRNA group (group S). Neuropathic pain was induced by repeated intraperitoneal (IP) injection of vincristine 0.1 mg/kg according to the method described by Weng et al in group P, B and S. On the 2nd day after the last IP injection, the animals received artificial cerebrospinal fluid, Ad-X-HK and Ad-5-HT5A-siRNA 25 μl administered intrathecally (IT) in group P, B and S respectively. Paw withdrawal threshold to mechanical stimulus was measured before and on the 7th day after IT administration. The animals were then sacrificed. The lumbar segment ( L4.5 ) of the spinal cord was removed for determination of 5-HT5A R and GFAP expression. Results Body weight and paw withdrawal threshold were significantly decreased after repeated IP vincristine administration in group P compared with group C. IT Ad-5-HT5A-siRNA reduced pain threshold further in group S compared with group P. Repeated IP vincristine significantly increased the expression of 5-HT5A R and GFAP in spinal dorsal horn, and IT Ad-5-HT5A-siRNA significantly decreased the expression of 5-HT5A R while increased the expression of GFAP in spinal dorsal horn in group S compared with group P. Conclusion 5-HT5AR is involved in the inhibition of astrocyte activation, resulting in reduction of vincristineinduced neuropathic pain.