Objective To analyze the ultrasonic features of thyroid microcarcinoma (TMC) and the causes of misdiagnosis. Methods The ultrasonic features including shape, margin, echogenecity, microcalcification, vascularity and lymphadenopathy were analyzed retrospectively in 26 pathologically-proven TMC patients. Results In 26 cases, 11 cases were diagnosed correctly before operation (11/26, 42.31%), 12 cases were misdiagnosed (12/26, 46.15%) as adenoma or benign nodule, and 3 cases were missed diagnosed (3/26, 11.54%). Among the 23 cases detected on ultrasound, 21 cases were solid and hypoechoic (21/23, 91.30%);19 cases were ill-defined (19/23, 82.61%);12 cases were taller than wide in shape (12/23, 52.17%); 14 cases had microcalcification (14/23, 60.87%); 7 cases showed central or peripheral blood flow signals (7/23,30.43%) with arterial resistance index>0.70 in 3 lesions and<0.70 in 4 lesions. Conclusions Several ultrasonographic features are helpful in identiifcation of TMC, including hypo/iso-echogenecity, ill-deifned margin, taller-than-wide shape, microcalciifcation, arterial signals with high resistance index, and abnormal lymphadenopathy. Moreover, for cases with multiple lesions, to the potential co-existence of benign and malignant lesions should be considered.

Objective To explore clinical value of transvagiTIa ultrasound in diagnosis of cctopie oviductpregnancy.Methods EUB-2000 ultrasound diagnosis meter was used,the vagina probe head frequency is 5～10MHz,after the vagina to the womb,the double-side ovary,the double side oviduct and its periphery organizes to carry on omni-direetionally sweeps looks up.Results Transvagina ultrasound diagnosis ectopic pregnancy center oviduct pot abdomen pregnancy 158 cases,the oviduct canyon department 4 cases,between the oviduct the nature department pregnancy 2 cases,all pass through the cefioseope of our hospital.Coincidence rate was 100%.Conclusion Transvagina ultrasound diagnosis ectopie pregnancy is one of most accurate ultrasound diagnosis methods presendy,suggested various basic units hospital widely develops.

Objective To study their chemical components of xianglingcao(Crotalaria ferruginea) and identify their chemical structures.Methods The compounds were isolated by chromatography and their structures were identified by spectral analysis and compared with the published data.Results Ten compounds were isolated and identified as vomifolilol(Ⅰ),genistein(Ⅱ),p-hydroxybenzoic acid(Ⅲ),5,7-dihydroxy-4-methoxy-flavone-7-O-?-D-glycopyranoside(Ⅳ),octadecoic acid(Ⅴ),octacosanol(Ⅵ),?-stitosterol(Ⅶ),?-daucosterol(Ⅷ),stigmasterol(Ⅸ),and ?5,22 stigmasterol-3-O-?-D-glycopyranoside(Ⅹ).Conclusion The ten compounds are obtained from xianglingcao for the first time.

Objective To research the curative effect of chondroitin sulfate and glucosamine on Kashin-Beck disease(KBD). Methods According to Diagnosis for Kashin-Beck disease,80 patients of adult KBD were detected from Guanghui village Shangzhi city Heilongjiang province in July,2007,and they divided into treatment group and control group according to their condition,age and sex,40 person in each group. Treatment group was given chondroitin sulfate and glucosamine sulfate,and control group was given placebo(equivalent amount of starch). Bilateral knees X-ray films were shot before and after treatment (8th month),scale division magnifying glass was used to measure the width of joint space on X-ray films. Results The width of joint space respectively was (4.30±2.14) and (4.10±2.07)mm in control group before and after treatment,and treatment group respectively was (4.17±2.15),(4.16±2.11)mm. Medicine had no obviously role on joint space (F = 0.50,P > 0.05),Time and both of time and medicine had obvious role on joint space(F= 67.66,46.74,all P< 0.05). Joint space of treat group was thinner than control group(P < 0.05) before treatment,but thicker after treatment(P < 0.05). To compare with the width of before treatment,joint space width of control group became obviously narrow(P < 0.05). Conclusions Experimental group taking chondroitin sulfate and glucosamine sulfate alleviated knee joint space narrowing process of adults KBD patients compared with control group. It plays a protection role in articular cartilage and provides evidences for choosing drug and evaluating effect in the treatment of adults KBD.

AIMTo study the chemical components from the bioactive extract of Herpetospermum pedunculosum, a Tibetan medicinal herb for liver diseases.

METHODSThe isolation and purification of this extract were conducted by means of silica gels column chromatography and preparative HPLC. The structures of the compounds were elucidated based on their physical and chemical features, and spectral data.

RESULTSTwo lignans were isolated from this extract. They were elucidated as herpetone (I), dehydrodiconiferyl alcohol (II).

CONCLUSIONCompound I is a new compound with the rare structure of sesqui-norlignan. Compound II is isolated from the genus of Herpetospermum for the first time.

Chromatography, Gel ; methods ; Chromatography, High Pressure Liquid ; Cucurbitaceae ; chemistry ; Lignans ; chemistry ; isolation & purification ; Molecular Structure ; Phenols ; chemistry ; isolation & purification ; Plants, Medicinal ; chemistry ; Seeds ; chemistry ; Silica Gel ; Silicon Dioxide

The biological characters of Sindbis virus strain of Yunnan(YN87448 strain) were studied by the test of the filtration, acid-resistant, ether-resistant, CPE, susceptibility of animal, HA, plague, determination of virus titres, and the cross-HI, cross-IFAT and PRNT as well.The results indicated that YN87448 strain belongs to Sindbis virus, Alphavirus, Togaviridae. YN87448 strain virus was plaque purified(PYN87448). The biological character of PYN87448 strain virus was studied too. PYN87448 strain virus will be used in the molecule biological test.

OBJECTIVETo explore the feasibility of transfecting recombinant Sp1 into hypertrophic scar fibroblasts and investigate the proliferation and collagen I, III synthesis in the transfected cells.

METHODSRecombinant human Sp1 was transfected into hypertrophic scar fibroblasts with the karyocyte expressive vector. The expression of Sp1, collagen I, III mRNA was tested by real time PCR. The change of cell proliferation was observed with CCK8 colorimeter.

RESULTSAbout 30% of transfected hypertrophic scar fibroblasts showed green fluorescence positive. The relative expression of Sp1 mRNA in transfected cells, empty-vector cell or untransfected cells group was 5.26 +/- 0.76, 1.08 +/- 0.18, 1.09 +/- 0.15, respectively, showing a significant difference between thansfected and untransfected cells or between the transfected cells and empty-vector group (P <0.01, n = 5). Expression of collagen I, III mRNA was 2.49 +/- 0.40 and 1.88 +/- 0.30 in transfected cells, 0.96 +/- 0.18 and 0.95 +/- 0.18 in empty-vector cell, and 0.97 +/- 0.15 and 0.93 +/- 0.13 in untransfected cells, respectively, showing a significant difference between thansfected and untransfected cells or between the transfected cells and empty-vector group (P < 0.01, n = 5).

CONCLUSIONSThe hypertrophic scar fibroblasts could be as the target cells of Sp1 gene transfection. Sp1 gene may play an important role in abnormal collagen metabolism in hypertrophic scar.

Cell Proliferation ; Cells, Cultured ; Cicatrix, Hypertrophic ; genetics ; metabolism ; pathology ; Collagen ; metabolism ; Escherichia coli ; genetics ; Fibroblasts ; metabolism ; pathology ; Humans ; RNA, Messenger ; genetics ; Recombinant Proteins ; genetics ; Skin ; metabolism ; Sp1 Transcription Factor ; genetics ; Transfection

BACKGROUNDSevoflurane preconditioning (SP) has been shown to invoke potent myocardial protection in animal studies and clinical trials. However, the mechanisms underlying SP are complex and not yet well understood. We investigated the hypothesis that the cardioprotection afforded by SP is mediated via the Wnt/glycogen synthase kinase 3β (GSK3β)/β-catenin signaling pathway.

METHODSTwo models were established: a Langendorff perfused rat heart model and the H9C2 cell hypoxia/reoxygenation model. Both rats and H9C2 cells were randomly divided into 6 groups as follows: S group, ischemia-reperfusion (I/R) group, DMSO group, IWP group, SP group, and SP + IWP group. Hemodynamic parameters, lactate dehydrogenase (LDH) activity in coronary effluent and cell culture supernatant, and the infarct size were measured to evaluate myocardial ischemia-reperfusion injuries. To determine the activity of Wnt/GSK3β/β-catenin signaling pathway, the expressions of Wnt3a, phospho-GSK3β, and β-catenin were measured by Western blotting.

RESULTSSP improved cardiac function recovery, reduced infarct size (18 ± 2% in the SP group compared with 35 ± 4% in the I/R group; P < 0.05), decreased LDH activity in coronary effluent, and culture supernatant. IWP-2, an inhibitor of Wnt, abolished the cardioprotection by SP. In addition, Western blotting analysis demonstrated that the expressions of Wnt3a, phospho-GSK3β, and β-catenin significantly (P < 0.05) increased in the I/R group, compared with the S group; and compared to I/R group, SP significantly (P < 0.05) increased Wnt3a, phospho-GSK3β, and β-catenin expressions. Pretreatment with IWP-2 significantly (P < 0.05) abolished SP-induced Wnt/GSK3β/β-catenin signaling activation.

CONCLUSIONSThe results showed for thefirst time that cardioprotection afforded by SP may be mediated partly via the Wnt/GSK3β/β-catenin signaling pathway.

Animals ; Cell Hypoxia ; drug effects ; Cell Line ; Glycogen Synthase Kinase 3 ; genetics ; metabolism ; Glycogen Synthase Kinase 3 beta ; Hemodynamics ; drug effects ; Male ; Methyl Ethers ; therapeutic use ; Myocardial Reperfusion Injury ; drug therapy ; prevention & control ; Rats ; Rats, Wistar ; Wnt Signaling Pathway ; drug effects ; genetics ; beta Catenin ; genetics ; metabolism

Objective To explore the anti-inflammatory action of Heshi Yangshen Recipe on rat model of nephrotic syndrome induced by adriamycin. Methods Rat model of nephrotic syndrome was established by tail venous injection of one-dose of adriamycin. SD rats were divided into normal group(N = 10),model group(N =11), positive control group (N = 12), and high-, middle- , low-dose Chinese medicine groups (N = 12, respectively). Two weeks after modeling,rats in the normal group and model group were given gastric gavage of same volume of normal saline, rats in positive control group were given gastric gavage of benazepril aqueous solution at a dose of 10 mg·kg-1·d-1 in the former period of 15 days and at 10 mg·kg-1·d-1 in the later period of 20 days, and rats in high-,middle- ,low-dose groups were given gastric gavage of Heshi Yangshen Recipe at a dosage of 33.26, 16.63, 8.32 g·kg-1·d-1 respectively, for 30 continuous groups. During the treatment period, the general situation of rats was observed. After the completion of medication, the levels of 24-hour urinary protein, urine total proteins, urine creatinine were measured by biochemical analyzer, serum high-sensitivity C-reactive protein (Hs-CRP) level was detected by enzyme-linked immunosorbent assay(ELISA),and the expression levels of intercellular adhesion molecule 1 (ICAM-1)and vascular cell adhesion molecule-1 (VCAM-1)in rat renal tissue of various groups were determined by immunohistochemistry. Results The increase of body mass in all of the modeled rats was significantly slowed down (P < 0.01 as compared with the normal group). Compared with the normal group, the levels of 24-hour urinary protein, serum hs-CRP, and the expression of ICAM-1 and VCAM-1 in rat renal tissue were increased in the model group (P < 0.05 or P <0.01). Compared with the model group, the level of 24-hour urinary protein in the positive control group and high-dose Chinese medicine group was decreased (P < 0.05), and the levels of serum Hs-CRP, and the expression of ICAM-1 and VCAM-1 in rat renal tissue of the positive control group and high-,middle-,low-dose Chinese medicine groups were decreased (P < 0.05 or P < 0.01). Conclusion Heshi Yangshen Recipe exerts certain anti-inflammatory action, and its mechanism may be related with the decrease of ICAM-1 and VCAM-1 expression. High dosage of Heshi Yangshen Recipe has the strongest therapeutic effect.

Objective To investigate the occurrence of sleep snoring and relative morbidities in preschool and early school children aged 3 to 14 years old in Nanning city.Methods A population-based cross-sectional study of children aged form 3 to 14 years old was conducted,12 kindergartens,8 prime schools and 6 junior high schools were randomly selected and information was collected using a parent-completed questionnaire to ascertain snoring or habitual snoring and correlated symptom.The response rate was 90.6%,8 150 of 9 000 questionnaire were fully completed and 6 999 questionnaires were available.Results The prevalence of snoring in preschool and school children were reported in 32.7%,the incidence rate of sleep snoring in boys was 44.22%,which was higher than that in girls(28.58%)(P