ObjectiveTo study the diagnostic value of serum type IV collagen(IV-C) in hepatic fibrosis. MethodsSerum IV-C levels were detected by using radioimmunoassay(RIA) and were compared with serum type Ⅲ procollagen(PCⅢ ) levels in normal controls(NC) and patients with chronic liver diseases. ResultsSerum IV-C and PCⅢ levels in patients with chronic liver diseases were all much higher than those in NC(P < 0.01, totally). Serum IV-C level in severe chronic hepa titis(CH) group was significantly higher than those in mild and median CH groups (P<0.01 total ly), and that in active liver cirrhosis(LC) group was significantly higher than that in static LC group (P＜0.05). There were significant positive correlation between serum IV-C level and serum PcⅢ level both in CH group and in LC group ( in CH γ=0.7023, in LC γ=0. 5878, P＜0. 001).Conclusion Serum IV-C level could reflect the activity of hepatic fibrogenesis.

OBJECTIVE:To provide references for the improvement of National Essential Medicine List.METHODS:The pertinent literature both at home and abroad was reviewed;the status quo and the problems of the National Essential Medicine List of China were expounded.RESULTS & CONCLUSION:It is suggested that its coverage be extended to cover the list of orphan drugs,meanwhile,an urban-rural essential medicine list and an essential medicine list for children should be established to enhance the hierarchy and practicability of National Essential Medicine List.

Seventy two patients with tension type headache (TTH) were divided randomly into two groups: massage group was treated with massage on the trigger points of neck muscles, and control group was treated with drugs.The frequency, duration, severity of TTH, use of painkiller and electromyography of pericranial muscle (temporalis muscle and masseter muscle ) were recorded before and after treatment.The frequency, duration and severity of TTH, the frequency of painkiller use, and amplitude and frequency on electromyography of pericranial muscles in massage groups after treatment were reduced significantly (P ＜0.05 ) .In summary, massage on the trigger points in neck muscles has significant therapeutic effects for TTH.

With the continuous advent of new types of electron microscopes and the continuous improvement and development of electron microscope technique , biological electron microscope tech-nique has become one of the important experimental means in the fields of biology , molecular biology, basic medicine and clinical medicine , Department of Pathology of College of Basic Medical Sciences in Jilin University has reviewed the teaching feature and teaching status of biological electron microscope technique based on the training objectives of postgraduate education. By finding the problems and analyz-ing them, they have added the teaching link of review discussion in teaching process and elaborated on its implementation process and teaching results , aiming to provide practical basis for application of review discussion for postgraduate teaching.

Objective To investigate the effects and mechanism of dexmedetomidine hydrochloride preconditioning against glutamate-induced neurotoxicity.Methods The model of glutamate-induced neurotoxicity was established by the injection of glutamate into lateral cerebral ventricle.Thirty-six SD rats were randomly divided into control group (C group),glutamate-induced neurotoxicity group (G group),Dex1 group and Dex2 group.Dex1 group and Dex2 group received intraperitoneal injection of dexmedetomidine respectively at a dose of 50 μg/kg or 100 μg/kg before glutamate application.Two hours later,the rats were sacrificed and hippocampus was separated to measure the level of SOD and MDA.The rest of each brain was used to measure the degree of brain edema.Pathological changes were observed under microscope with Nissl's staining.Results In contrast to G group,brain edema and MDA concentration in Dex1 group and Dex2 group were significant lower,while SOD concentrations were significantly increased and the pathological change in Dex1 group and Dex2 group were relieved obviously compared to glutamate-induced neurotoxicity group.Conclusion Dexmedetomidine preconditioning can significantly attenuate glutamate-induced neurotoxicity,which is properly related to the inhibition of oxidative-stress reaction.

Objective To evaluate the safety and efficacy of percutaneous balloon mitral valvuloplasty (PBMV) in patients with rheumatic severe mitral stenosis and thrombus in the left atrial appendage.Methods We selected 11 patients (9 women and 2 men), the average age being 40.6?5.7 years. All cases received warfarin orally every day for more than 12 weeks before underwent PBMV used Inoue single balloon technique, to see whether systemic thromboembolism complication occurred during the operation and one year follow-up term. Results The successful rate of PBMV was 100%. No systemic thromboembolism occurred during and after PBMV. The parameters of hemodynamics, mitral valve area and cardiac function improved markedly.Conclusion PBMV on patients with severe mitral stenosis and thrombus in the left atrial appendage is safe and effective after certain anticoagulation treatment.

Objective To identify the middle-long term outcomes,the incidence of restenosis,and the determining factors of restenosis.Methods Four hundred and sixty five patients with mitral stenosis (MS) underwent percutaneous balloon mitrail valvuloplasty (PBMV) from May 1990 to May 2002. Among the 465 patients,a retrospective study of 344 cases (258 females and 86 males) with complete data was presented in this article. The mean age was (40.2?9.6) years (ranging from 15 to 72 years). They were followed-up after PBMV. The data were analyzed with SAS software. Results Follow-up results of 1-12 years [median (3.6?2.5) years] showed that the one-year event-free survival rate was 100% with 9 cases of restenosis in 344 cases (2.5%),the three-years event-free survival rate was 97% with 39 cases of restenosis in 286 cases (13.6%),the five-years event-free survival rate was 91% with 60 cases of restenosis in 221 cases (27.1%),the eight-year event-free survival rate was 80% with 32 cases of restenosis in 81 cases (39.5%),and the ten-year event-free survival rate was 69% with 20 cases of restenosis in 42 cases (47.6%),and the twelve-year event-free survival rate was 63% with 9 cases of restenosis in 16 cases (56.3%). The event-free survival rate was greater in patients with modified echocardiographic score ≤10. Conclusion PBMV can produce good clinical middle and long-term outcomes in most patients,and those with modified echocardiographic score ≤10,bi-commissural splitting,sinus rhythm,large mitral valve area after PBMV,without poor cardiac function may especially have the best middle and long-term results.

Objective:To evaluate the effectiveness of individual operative design for unilateral cleft lip repair.Methods:Individual operation design was applied for the repair of unilateral cleft lip in 40 cases.The operations were conducted according the designs and the secondary nasal deformities were corrected at the same time.One week after operation,dermal sutures were removed,the effects were evaluated by 3 professional doctors.7 labial morphometric lines were measured.The ratio of the line length on healthy side to the correspondence on the cleft side(RLL)were calculated for objective evaluation.Results:First intention was found in all cases,the labial bow of both sides was symmetried after operation.In dynamic state and static state,the effects of the operations were satisfactory.RLL of 0.91-1.10 of the 7 lines was observed in 67.5%-95.0% of the patients.Conclusion:The individual operation design is feasible for unilateral cleft lip repair.

Objective To study the protective effect of resveratrol on endothelial cells injury induced by oxidized low-density lipoprotein (oxLDL) and its protective mechanism. Methods The injured model was established by endothelial cell treated with oxLDL. In the experiment, endothelial cell were cultured in vitro and divided into seven groups which were: control group; solvent (DMSO) group, oxLDL group, quercetin plus oxLDL group, Reseveratrol-L (0.5 mol/L), M(5 mol/L), H(50 mol/L) plus oxLDL group respectively. Endothelial cells were incubated with 200?g/ml oxLDL for 18 hours in the absence or presence of various concentrations of resveratrol and quercetin. The apoptotic index was detected by flow cytometric. Meanwhile, the content of Malondialdehyde (MDA), and the activity of SOD, GSHPX in the culture medium and homogenate of endothelial cells were measured. Results Incubation of endothelial cells with oxLDL for 18 h elicited a significant increase in the percent of apoptotic endothelial cells, in control group, the percent of apoptotic cells is 7.6?0.6, however in oxLDL group, it increased to 41.4?2.3, furthermore, oxLDL induced the increase of the contents of MDA, and accompanied by the decrease in the activity of SOD, GSHPX in the endothelial cells, the difference of was significant as compared with control group. Pretreatment of resveratrol with 0.5～50 mol/L decreased these oxLDL-induced changes, in Reseveratrol with 50 mol/L group, the percent of apoptotic cells decreased to 13.0?1.5, the difference of was significant as compared with oxLDL group (P

0.05), but were highly significant at doses of 100 ?mol/L or above (P