BACKGROUND:As a material to repair osteochondral defect,the acellular cartilage matdx has attracted more and more researchers'attention,however,there is no comparison between two ways of decelluladzation.OBJECTIVE:To test trypsin and Triton X-100 methods for their potential of cell removal.DESIGN,TIME AND SETTING:Controlled observation was performed at the Central Laboratory of Orthopaedics in the Second Hospital of Shanxi Medical University between March and July in 2008.MATERIALS:Fresh knee and hip articular cartilages of pig were purchased from the market.METHODS:Porcine articular cartilages were treated with either 0.25%trypsin or 0.25% Triton X-100 respectively for decelluladzation,while fresh untreated articular cartilage served as control.MAIN OUTCOME MEASURES:①General observation on the morphology of acellular articular cartilage.②Immunohistochemistry and scanning electron microscopy were used to determine the effect of two decellularization methods on the extracellular matrix collagen.③Ten articular cartilage leaflets in each group were measured for breaking strength and percentage elongation through loading,unloading and breaking tests.RESULTS:①By use of trypsin and Triton X-100 methods,the acellular matrix had no significance difference in the morphology compared with untreated cartilage,only presenting slightly white color and feeling less soft.②lmmunohistochemistry and scanning electron microscopy results showed that,trypsin and Triton X-100 methods achieved complete decelluladzation.Trypsin had no significant influence in extracellular matrix and cartilage leaflets microstructure;Triton X-100 caused some tiny structural alterations,such as more collagen and disordered structure.It is possibly that Triton X-100 damaged extracellular matrix.③No significant difference was identified between untreated and trypsin,Triton X-100 groups in breaking strength and percentage elongation.CONCLUSION:Trypsin and Triton X-100 all achieve complete decellularization.but trypsin uses short time and low costs with well preservation,while Triton X-100 with long procedure and slight damage to collagen structure.They all have no significance influence to the mechanics characteristics of articular cartilage.

Humans ; Traumatology

OBJECTIVETo evaluate the efficacy and safety of the combination therapy of Xipayimaizipizi Capsules and Tamsulo- sin in the treatment of benign prostatic hyperplasia (BPH).

METHODSWe randomly assigned 60 BPH patients to a control and a combination group of equal number, the former aged 62.03 ± 10.19 years with a disease course of 3.24 ± 2.18 years and the latter aged 64.77 ± 10.33 years with a disease course of 4.09 ± 2.63 years. We treated the patients in the control group with Tamsulosin at 0.2 mg qd and those in the combination group with Tamsulosin at 0.2 mg qd plus Xipayimaizipizi at 0.5 g tid, respectively, both for 4 weeks. Then, we obtained the mean frequency of nocturnal urination, maximal urinary flow rate (Qmax), residual urine volume, International Prostate Symptom Score (IPSS) , and quality of life scores (QOL) of the patients, and recorded their adverse reactions.

RESULTSBefore treatment, the nocturnal urination frequency, Qmax, IPSS, and QOL were 3.60 ± 1.81, (10.40 ± 3.53) ml/min, 22.47 ± 8.58, and 4.43 ± 1.50 in the control group, as compared with 3.43 ± 1.61, (10.14 ± 3.43) ml/min, 21.93 ± 8.79, and 4.73 ± 1.31 in the combination group. After 4 weeks of medication, the combination group showed more significant improvement than the control in the nocturnal urination frequency (1.30 ± 1.18 vs 2.27 ± 1.60), Qmax ([13.85 ± 3.15] vs [14.36 ± 3.03] ml/min), IPSS (13.00 ± 1.53 vs 17.20 ± 8.43), and QOL (2.57 ± 1.61 vs 2.93 ± 1.68), all significantly better than the baseline (P < 0.05). The combination therapy achieved remarkable improvement as compared with the control in the nocturnal urination frequency (- [2.13 ± 1.11] vs -[1.73 ± 1.07]), IPSS (- [8.93 ?6.01] vs -[4.80 ± 3.87]), and QOL (- [2.17 ± 1.12] vs -[1.50 ± 1.01]) (P < 0.05), but exhibited no significant differences from the latter in Qmax ([3.72 ± 2.281 vs [3.95 ± 2.53] ml/min) and residual urine volume (- [34.30 ± 37.43] vs - [26.43 ± 30.49] ml) (P > 0.05). Adverse reactions were found in 5 cases in the combination group (16.67%) and 3 cases in the control (10%) , with no remarkable differences between the two groups (P > 0.05).

CONCLUSIONThe combination therapy of Xipayimaizipizi Capsules and Tamsulosin can improve the symptoms of BPH and the patients quality of life of.

Aged ; Capsules ; Drug Therapy, Combination ; Drugs, Chinese Herbal ; therapeutic use ; Humans ; Male ; Middle Aged ; Prostatic Hyperplasia ; drug therapy ; Quality of Life ; Sulfonamides ; therapeutic use

Objective: Our aims were to study the expression of p73 protein in giant cell tumor of bone, and to investigate its function in the carcinogenesis and development of giant cell tumor of bone. Methods: The expression of p73 was detected by using S-P immunohistochemical method in 40 cases of paraffin-embedded sections of giant cell tumor of bone. Results: The positive rate of p73 in 40 patients with giant cell tumor of bone was 30.0%,and 20.0% in osteochondroma.The difference between them was not significant(P<0.05). There was significant difference between the expression of p73 in different stages of giant cell tumor of bone(P>0.05). Conclusion: The expression of p73 in giant cell tumor of bone increased prominently in this experiment. It suggests that p73 may play an important role in the carcinogenesis and development of giant cell tumor of bone, and p73 may also have a certain value for the diagnosis of giant cell tumor of bone.

As one of the important founders of GAO's acupuncture academic school in YanZhao area, Professor GAO Yuchun 's experience of acupuncture for headache is summarized in this paper. In the opinion of Professor GAO, the treatment of headache should focus on eliminating evil and relieving pain, and the syndrome differentiation should be based on meridian differentiation, especially on three yang meridians of foot as well as liver meridian and kidney meridian. In the acupoint prescription, attention should be placed on strengthening the spleen and stomach. The midnight-midday ebb flow acupuncture is advocated. The combination between acupuncture order and movement of qi is emphasized. In the manipulation, the role of pressing hand, the stimulation during reinforcing and reducing methods, and needle-retention time are important. The breathing reinforcing and reducing method of acupuncture are also advocated.
Acupuncture Points ; Acupuncture Therapy ; methods ; Female ; Headache ; therapy ; Humans ; Meridians ; Middle Aged

Objective To investigate the correlation between serum insulin-like growth factor-1(IGF-1)level and the 131Ⅰahsorbante of thyroid nodule in patients with struma nadosa,to search for simpler and safer methods for differentiating thyroid nodule.Methods Detecting the 131Ⅰ absorbance of thyroid nodule by radioisotope scanning.then the patients were divided into warm and cold nodule groups,and the normal control group was also set up;the levels of IGF-1,FT3,FT4,sTSH were detected in serum of patients with struma nadosa by radio immunoassay,then the correlation between these data and the 131Ⅰabsorbance of thyroid nodule was analyzed.Results In the patients with warnl nodule,the level of serum IGF-1,FT3,FT4 and the 131Ⅰ absorbance of thyroid nodule[(315.86±22.74)μg/L,(9.95±5.62),(67.27±27.31)ng/L,0.64±0.17]were increased obviously when compared with the control group [(256.13±39.85)μg/L,(2.80±1.30),(13.51±5.50)ng/L,0.35±0.15],but the sTSH[(0.35±0.03)mU/L]went down significantly than the control group[(2.71±1.17)mU/L],the difference being statistically significant(P＜0.01).In the patients with cold nodule,the level of serum IGF-1,FT3,FT4,sTSH[(263.17±30.23)μg/L,(2.89±0.98),(14.23±2.84)ng/L,(2.81±0.42)mU/L] had no significant difference compared with the control group(P＞0.05).The level of serum IGF-1 was positively correlated with the 131Ⅰ absorbance of thyroid nodule(r＝0.835,P＜0.01),but negtively correlated with sTSH(r＝-0.326,P＜0.05)in the patients with warm nodule.Conclusion The level of sernm IGF-1 is closely correlated with the 131Ⅰ absorbance of thyroid nodule in patients with struma nadosa.

Objective To explore the guidance significance of the functional MRI and DTI (fMRI ,DTI) ,intraoperative ultra-sound(IOUS) ,neuronavigation ,electrocorticography(EcoG) monitoring used in surgical treatment of low-grade gliomas with epi-lepsy as main symptom located near the eloquent brain regions .Methods 23 neurosurgical patients in the First Affiliated Hospital of Chongqing Medical University during 2009-2010 were performed the retrospective analysis .The preoperative fMRI ,DTI deter-mined the positional relation between the lesions with the conduction bundle and the eloquent brain regions ,the electrophysiological and imageological examinations positioned the epileptogenic focus and lesions ,the MRI-mediated neuronavigation system was adopt-ed to formulate the surgical plan and choose the best surgical approach ,IOUS was used to perform the realtime monitoring for pre-cisely positioning the lesion range and determining the extent of resection ,and the intraoperative EcoG was adopted to determine the epileptogenic focus localization ,the lesions and the epileptogenic focus was dealed by the operating microscope for avoiding the func-tional region ,and the patient′s prognosis was evaluated and recored in detail after operation .Results By the precisely positioning the lesions and epileptogenic focus by fMRI ,DTI ,neuronavigation and ultrasound ,the lesion resection degrees by the operative mi-croscope and intraopertaive pathological guidance were 17 cases of Ⅰ-Ⅱ grade ,4 cases of Ⅲ grade and 2 case of Ⅳ-Ⅴ grade .1 case of motor aphasia ,4 cases of hemiplegia and monoplegia and 1 case of disturbance of consciousness after operation were improved by the treatment of neurotrophy ,dehydration and hyperbaric oxygen and discharged from hospital with rehabilitation .No death case occurred .The evaluation of the life quality :20 cases ofⅠ-Ⅱ grade ,3 cases of Ⅲ grade and no vegetable survival case of Ⅳ grade . The evaluation of resection clinical effect :20 cases of cure ,3 cases of improvement ,no case of as before and exacerbation .After fol-lowed up for 6-24 months ,according to Engel classification of seizure efficacy assessment :Ⅰ-Ⅱ grade in 21 cases ,Ⅲ grade in 2 case ,no case of Ⅳgrade .Conclusion fMRI ,DTI ,neuronavigation ,IOUS and EcoG for guiding the operation of low grade gliomas located near the eloquent brain regions can resect the lesion to the largest extent and simultaneously deal with epileptogenic focus , effectively protect the neurological function of the functional region ,greatly reduce the side-injury of the normal brain tissues in the functional region ,at the same time increase the curative effect of symptomatic epilepsy .

Objective To analyze the clinic pathologic factors and survival rate by performing a retro-spective study on the early gastric carcinoma (EGC)with signet ring cell underwent curative gastrostomy (SRC) percentage less than 50%after operation .Methods A total of 424 patients was diagnosed as EGC from January 2008 to January 2010 in Changhai Hospital .The patients were divided into three groups according to the different percentage of SRC within tumor cells , SRC group ( with percentage of SCR more than 50%) , Mixed SRC group (with percentage of SRC less than 50%),and Non-SRC group(Classic adenocarcinoma without SRC ).Then we evaluated the clinic pathologic indicators and prognoses , and study on the relationship with histologic types . Results In ECG,the mixed-SRC group was similar to the SRC group on the phases of onset age and sex .On the other phases,the mixed-SRC group was more associated with mucosa -confined,lower lymph node metasta-sis(LNM),and 5-year survival rate was better than adenocarcinoma group (P<0.05).However,the mixed-SRC group showed more submucosal invasion ,and higher LNM than other groups ( P<0 .05 ) .The mixed-SRC component was one of the independent risk factors of LNM .Conclusion In EGC,mixed-SRC had a more favor-able risk factor of LNM ,showed more aggressive behavior than other groups and displayed poor prognosis .

OBJECTIVE Licorice is used throughout the world as a traditional herbal remedy. Ac-cording to Chinese traditional medicine licorice alone can be used to treat inflammation.Although there have been some studies investigated the anti-inflammatory ingredients of licorice, but for the potency of flavonoid glycoside and their aglycones on inflammation are not evaluated.This study was designed to assess the contributions of licorice flavonoid glycosides and their aglycons to its anti-inflammatory and hypnotic effects. METHODS For the flavonoid aglycone's enrichment, the extract of licorice (EL) was fermented in submerged culture of the edible fungus Grifola frondosa HB0071 mycelia which can produce β-glucosidase and catalyze the flavonoid glycosides to aglycones.EL and fermented extract of licorice (FEL) were used in this study. The anti-inflammation test was carried out in arachidonic acid (AA)-induced ear edema model and the hypnotic test was performed by using electroencephalogram (EEG)analysis method in normal freely moving SD rats.The chemicals constituents were analyzed by HPLC.RESULTS During fermentation,the falvonoid glycosides of licorice were hydrolyzed by the time process.Along with fermentation time,the concentration of the major flavonoid glycosides,liquiritin and isoliquiritin were decreased obviously, and simultaneously their aglycons, liquiritigenin and isoliquiriti-genin were remarkably increased in FEL.Moreover,the content of another major constituent glycyrrhi-zic acid and glycyrrhetinic acid were not changed after the fermentation. In AA-induced mice ear ede-ma test,after topical application,FEL(effective dose range:5-20 μg·ear-1)showed more potent inhibito-ry activity than EL(effective dose range:25-100 μg·ear-1).On the other hand,oral administration of EL and FEL exhibited the same hypnotic potency and both enhanced the total sleep time including rapid eye movement (REM) sleep and non-REM sleep time. CONCLUSION These results suggested that the enrichment of flavonoid aglycons such as liquiritigenin and isoliquiritigenin enhanced the anti-inflam-matory potency of licorice extract,and this potentiation has nothing to do with glycyrrhizic acid or glycyr-rhetinic acid.In addition,enrichment of flavonoid aglycones did not alter the hypnotic effect of licorice.

3 root canals were found when a left lower first premolar, which preoperative radiograph showing root canal variety, was treated and were verified by postoperative radiograph. The root canal variety of lower premolars should be paid more attention to prevent root canal from losing.
Bicuspid ; Dental Pulp Cavity ; Humans ; Mandible ; Postoperative Period ; Root Canal Therapy