OBJECTIVEThis review aims to identify the dimensional structure of the shortened dentine hypersensitivity experience questionnaire (DHEQ-15) using confirmatory factor analysis (CFA).

METHODSThe Chinese language version of DHEQ-15 was applied to 210 patients with dentine hypersensitivity aged 18-70 years old. The three-dimensional construct was confirmed by CFA.

RESULTSAll the questionnaires were fully completed. The item "Because of the sensations, I take longer to finish a meal than others" was the most frequently reported by the parents. The modified three-factor model is suitable for the data. The chi-square fit statistics/degree of freedom was 2.213, the goodness-of-fit index was 0.905, the adjusted goodness-of-fit index was 0.872, the normed fit index was 0.845, the incremental fit index was 0.962, the Tucker-Lewis index was 0.969, the comparative fit index was 0.977, and the root mean square error of approximation was 0.068.

CONCLUSIONSOur findings generally support the three-dimensional construct of the DHEQ-15. Thus, DHEQ-15 can be used as a valid instrument in patients with dentine hypersensitivity in China.

Administration, Rectal ; Adolescent ; Adult ; Drugs, Chinese Herbal ; administration & dosage ; Endometriosis ; drug therapy ; Female ; Humans ; Middle Aged ; Phytotherapy

Objective To evaluate the efficacy of naloxone used in the postoperation of cerebral tumor.Methods Eighty patients were randomly assigned to receive (treated group:40 patients) or not re- ceive (control group:40 patients) naloxone.Both the two groups accepted the conventional therapy.Re- sults After operation,the content of?-EP,ET decreased continuously but the one of the treated groups was more obviously than that of the control groups (P

AIM: To observe the inhibition of c-Met inhibitor on proliferation of lens epithelial cells (LECs).METHODS: Human's LECs were cultured and hepatocyte growth factor (HGF) and K252a were added to second passage of cells supplied with Dulbecco's modified eagle's medium (DMEM). MTT assay was used to examine the proliferation of LECs, and Western-blot was used to detect the expression change of Bcl-2 and Caspase-3.RESULTS: The photodensity (A) of HGF (50nmol/L) + K252a (30nmol/L) was not significantly different from that of DMEM control (P＞0.05). The expression of Bcl-2 and Caspase-3 were not significantly different from that in the control group.CONCLUSION: K252a, the inhibitor of c-Met, can effectively inhibit the proliferation of LECs.

This article introduces a novel scavenger for waste anesthetic gas which makes use of negative pressure in operating room. This setting can scavenge the exhaust gas absolutely without affection the normal work of anaesthesia.
Anesthetics ; Gas Scavengers ; Operating Rooms

OBJECTIVETo evaluate the clinical results after arthroscopic rotator cuff repair using a suture-bridge technique in late middle-aged adults.

METHODSA retrospective analysis of 30 patients with rotator cuff tears, who were treated consecutively between December 2012 and December 2013 at our clinic, was carried out to evaluate the outcome of arthroscopic suture-bridge technique. The visual analogue scale (VAS), the range of motion (ROM), the rating scale of the University of California at Los Angeles (UCLA), and the shoulder index of the American Shoulder and Elbow Surgeons (ASES) were determined as the evaluation criteria.

RESULTSThe mean follow-up period was 13 months. The follow-up rate was 100%. The study included 0 small, 16 medium, 12 large and 2 massive rotator cuff tears. At the latest follow-up, the VAS score decreased significantly from preoperative 6.3±3.2 to 0.8±1.4 at rest,and from preoperative 7.7±2.1 to 1.7±1.6 during motion. The UCLA score improved significantly from 15.1±4.6 preoperatively to 31.2±5.0 at follow-up. The ASES shoulder index improved significantly from 30.2±16.0 preoperatively to 80.4±13.0 at follow-up. The ROM improved significantly. The satisfactory rate was 94%. There were no complications.

CONCLUSIONThe results of this study indicate that the arthroscopic suture-bridge technique is an effective and reliable treatment for patients with rotator cuff tear in late middle-aged adults.

Age Factors ; Aged ; Arthroscopy ; methods ; Female ; Humans ; Male ; Middle Aged ; Range of Motion, Articular ; Rotator Cuff ; surgery ; Suture Techniques

ObjectiveTo investigate the effect of nifedipine(Nif) on experimental pulmonary hypertension(PH).Methods33 adult male Wistar rats were randomly divided into normal control group,model group and Nif treatment group(n=11 for each group). Rats were given a single dose of subcutaneous monocrotaline(MCT,50 mg/kg) to induce the model of pulmonary hypertension, then treated with gastric infusion of normal saline or Nif respectively for 21 days. The parameters of pulmonary hemodynamics were monitored by Gould3400 polygraph system through the cannulation of polyvinyl tube. Right ventricle and left ventricle added with interventricular septum weight ratio, and the lung wet weight were measured.ResultsNif significantly inhibited the progression of pulmonary artery pressure(P<0.01), decreased the right heart index(P<0.01), but did not significantly reduce the lung wet weight(P>0.05).ConclusionChronic treatment with Nif may effectively reduce the development of PH induced by MCT and improve the heart function.

BACKGROUND:The Acinetobacter baumannii group, including Acinetobacter baumannii, Acinetobacter genomospecies 3 and 13TU, is phenotypically indistinguishable and uniformly identified as Acinetobacter baumannii by laboratories of clinical microbiology. This review aimed to demonstrate the differences among them.METHODS:Literatures associated with the Acinetobacter baumannii group were identified and selected from PubMed databases and relevant journals.RESULTS:Acinetobacter genospecies 3 and 13TU possess a certain proportion in clinical isolates. There were considerable differences in epidemiologic features, clinical manifestations, antimicrobial resistances and therapeutic options among theAcinetobacter baumannii group. Compared with Acinetobacter genomospecies 3 and 13TU,Acinetobacter baumannii with a higher resistance to antimicrobial agents are easier to be treated inappropriately, and present a worse outcome in patients.CONCLUSION:The Acinetobacter baumannii group comprises three distinct clinical entities, and their clinical value are not equal.

Objective To study the potential of multi-slice spiral CT perfusion imaging in the assessment of cerebral neoplasms.Methods Multi-slice helical CT perfusion imaging was performed in 38 patients with cerebral tumors.The perfusion imaging of the tumor was carried out by cine scan technique (ls/1 rotation) with slice thickness 5 mm/4i,reconstructed slice thickness 10 mm/2i.Contrast injection was done by using 50 ml nonionic contrast agent(300 mg I/ml),at a flow rate of 3.5 ml/s with a power injector,and 5 seconds delay,and data acquisition lasted for 45 seconds.The scanning images were processed in ADW 4.0 workstation.BF、BV、PS values of tumors were calculated and statistically analysed. Results 38 patients with cerebral neoplasms included 9 cases of gradeⅠ—Ⅱgliomas(group 1),10 cases of gradeⅢ—Ⅳgliomas (group 2),9 eases of metastases (group 3)and 10 cases of meningiomas (group 4).All raw data was transformed to square root so as to be consistent with normal distribution.BF~(1/2) values for groupl to group 4 were (5.99?1.03)、(7.55?1.57)、(7.72?2.02 )、(11.40?2.13)ml?rain~(-1)?kg~(-1).The differences in BF~(1/2) were statistically significant between group 1 and group 2,between group 1 and group 3,between group 1 and group 4,between group 2 and group 4,between group 3 and group 4(t_(1,2)=6.89,t_(1,3)=4.59,t_(1,4)=11.03,t_(2.4)=10.58,t_(3,4)=7.65,P＜0.05),and there was no statistically significant difference between group 2 and group 3(t_(2.3)=1.17,P＞0.05);BF~(1/2) values for groupl to group 4 were (1.01?0.19)、(1.42?0.38)、(1.25?0.33)、(1.60?0.24)ml?kg~(-1).The differences in BF~(1/2) were statistically significant between every two groups (t_(1,2)=7.15,t_(1.3)=3.71, t_(1.4)=5.93,t_(2.3)=2.94,t_(2,4)=2.72,t_(3.4)=4.46,P＜0.05 );PS~(1/2) values for groupl to group 4 were (1.70?0.37)、(3.63?0.95)、(4.29?1.30)、(5.69?1.03)ml?min~(-1)?kg~(-2).The differences in PS~(1/2) were statistically significant between every two groups(t_(1.2)=11.53,t_(1.3)=10.61,t_(1.4)=16.77,t_(2.3)=3.69, t_(2,4)=9.94,t_(3,4)=5.52,P＜0.05).Conclusion Multi-slice helical CT perfusion imaging is very useful to evaluate tumor vessels of cerebral neoplasmas and it can provide information of incremental benefit in diagnosis,in staging of tumor grade,in the distinction of benign from maglignant cerebral neoplasmas and in differentiating intracerebral neoplasmas from extracerebral neoplasmas.

Objective To evaluate the predictability of MSCT perfusion in the restorability of renal function of hydronephrotie kidneys with unilateral partial ureteric obstructed rabbit model as to explore a method to predict the restorability of renal function of hydronephrotic kidneys and to investigate the changes of MSCT perfusion parameters during the course of the restore of renal function.Methods Establish a unilateral partial ureteric obstructed rabbits hydronephrotie model.Hydronephrotie rabbits were grouped as control,2,4 and 8 week(G_2w,G_4w and G_8w)after obstruction and the later 3 groups of rabbits were reared for further 4 weeks after the obstruction was released.MSCT perfusion scanning was performed and the specimen was made into histological slices with HE staining.Results BF and BV value of renal cortex and medulla of G_2w after obstruction [(864?32)ml?100 g~(-1)?min~(-1),(19.5?0.9)ml/100 g (cortex ); (182.1?7.5)ml?100g~(-1)?min~(-1),(8.37?0.51)ml/100g(medulla)]was released restored in substance and approached that of control[(899?63)ml?100g~(-1)?min~(-1),(21.6 + 1.4)ml/100 g (cortex);(193.5?16.5 )ml?100g~(-1)?min~(-1),(8.50?0.54 )ml/100 g (medulla)]while there was no significant restore in that of G_4w and G_8w after obstruction[(525?15)ml?100g~(-1)?min~(-1),(12.8? 0.6)ml/100g (G_4 w);(512?10)ml?100g~(-1)?min~(-1),(9.4?1.0)ml/100 g (G_8w)] was released. Histologically,there was a positive correlation between the duration of obstruction and the seriousness of pathologic changes.Conclusion MSCT perfusion can provide information not only morphologically but also about renal perfusion of hydronephrotic kidneys.