Objective To confirm the role of HLA B2704 in the pathogenesis of psoriasiform dermatosis by investigating the phenotype of skin diseases in HLA B2704 transgenic mice.Methods The transgenic positive mice were screened and identified by PCR,dot blot and Southern blot hybridization.HE and Immunohistochemistry staining of the diseased mice skin were performed to detect the pathological changes and expression of HLA B2704.Results Six transgenic positive mice developed obvious psoriasiform dermatosis.Histologically,the skin was massively thickened by psoriasiform hyperplasia and keratinization.HLA B2704 antigen was highly expressed on the cell surface.Conclusion HLA B2704 heavy chain can induce the psoriasiform dermatosis in the transgenic mice.

OBJECTIVE To provide the investigative data for timely changing medical gloves according to the study on the dynamic change of physical property of the gloves during abdominal open procedure.METHODS The gloves used in the abdominal open procedures were collected.The tensile strength,break elongation and the morphological values of three types of the gloves(No.6.5,7 and 7.5) were measured and recorded before and after their using at the time point of 0.0h,1.5h,2.5h,3.5h,4.5h,5.5h and 6.5h during operation.RESULTS The tensile strength decreased significantly(P

Objective To investigate the physicochemical properties,structural characters and antitumor activity of a polysaccharide PTPS-1 from Paecilomyces tenuipes.Methods PTPS-1 was obtained by DEAE-cellulose and Sephadex G-100 chromatography column.The methods of HPLC,GC,IR,and NMR were used to investigate the molecular weight,monosaccharide composition,and structural characters of PTPS-1.The CCK-8 kit was used to determine the proliferation of PTPS-1 on murine splenocyte and the supernatant of the murine macrophage with PTPS-1-stimulated on Sp2/0 cells.Results PTPS-1,whose molecular weight was 1.84?104 and purity was 98.977%,contained mannose(Man) and galactogen(Gal) as monosaccharide constitute in molar ratio of 1.3∶1.It consisted of a backbone of ?-(1→6),?-(1→2),and ?-(1→3) linkage,whose branches were made by Gal-(1→3) linkage.PTPS-1 significantly stimulated the murine splenocyte proliferation and the supernatant of macrophage inhibited the growth of Sp2/0 cells in vitro.Conclusion PTPS-1 is a polysaccharide from P.tenuipes with immunomodulatory and antitumor activity.

AIM: To study the effects of paecilomyces cicadidae total polysaccharides on the immune function and free radical scavenging of tissues in immunosuppressed rats.METHODS: The activities of lactate dehydrogenase(LDH) and arginase(Arg) in liver,kidney,spleen,thymus of immunosuppressed rats were detected by automatic biochemistry analyzer.The content of lipid peroxide(LPO) and the reduced glutathione(GSH) level in liver,kidney,spleen,thymus of immunosuppressed rats were observed.RESULTS: The activity of the LDH,Arg and GSH level were significantly increased,and the LPO content were significantly declined in liver,kidney,spleen,thymus of immunosuppressed rats induced by cyclophosphamide.CONCLUSION: Paecilomyces cicadidae total polysaccharides promote immune function and the ability of free radical scavenging of tissues in immunosuppressed rats.

Objective To evaluate the diagnostic value of ~(99)Tc~m-methoxyisobutylisonitrile (MIBI) SPECT scintigraphy combined Iocalizable CT in the localization of ectopic parathyroid glands in hyperparathyroidism.Methods Retrospective data of surgery,pathology and imaging were collected from 28 patients with hyperfunctioning ectopic parathyroid glands.All cases underwent CT studies.Twenty-five patients had ~(99)Tc~m-MIBI planar imaging first:SPECT scintigraphy combined localizable CT was performed for the patients with abnormal radionuclide foci immediately.The fusion images obtained after reconstruction showed the exact location of the ectopic foci.Operative histopathologic results were regarded as "gold standards".Presuming 4 parathyroid glands as normal findings,findings confirmed by operation and pathology were regarded as positive,otherwise negative.The results of CT and radionuclide imaging were compared by X~2-test of four-foId table.Results Twenty-eight ectopic parathyroid glands were found in 28 patients,all pathologically confirmed as adenomss.CT found 22 foci,of which 17 were true positive,5 false positive,11 false negative,and 79 true negative.~(99)Tc~m-MIBI SPECT scintigraphy combined localizable CT found 23 foci,no false positive,2 false negative,and 75 true negative.The results showed that the sensitivities were 61% (17/28),92%(23/25),specificities 94%(79/84),100%(75/75),accuracies 86%(96/112),98% (98/100),positive predictive values 77%(17/22),100%(23/23),and negative predictive values 88% (79190),97%(75/77),respectively,for CT and radionuclide imaging.~(99)Tc~m-MIBI SPECT scintigraphy combined localizable CT was therefore significantly higher than CT in sensitivity(X~2=6.98,P＜0.01),specificity (X~2=4.61,P＜0.05),accuracy (X~2=10.30,P＜0.01),positive predictive value(X~2=5.88,P＜0.05) and negative predictive value (X~2=5.36,P＜0.05).Conclusion ~(99)Tc~m-MIBI SPECT scintigraphy combined localizable CT is superior to CT alone in the localization of ectopic parathyroid glands in hyperparathyroidism,but false negative can be found in some patients.

AIM:To investigate the surgical method and extent of reoperation in the concomitant strabismus patients with surgical under-correction and over-correction.
METHODS: Ninety - six concomitant strabismus patients with surgical under - correction and over -correction were recruited in this study, which included 41 males and 55 females, aged 21. 90±14. 70. All individuals underwent routine eye examinations for strabismus before the surgery. Among the cases with concomitant esotropia, there were over-correction in 23 cases, under-correction in 15 cases. Among the cases with concomitant exotropia, there were over-correction in 28 cases, under - correction in 30 cases. The method of reoperation were based on angle of deviation, the method of original operation and acute visual acuity of patients.
RESULTS:In over - correction cases with concomitant esotropia, medial rectus muscle of 9 cases were advanced, the corrective extent was (5. 51±2. 63) ? / mm;9 cases were performed advance of medial rectus muscle and recession of lateral rectus muscle, the corrective extent was (6. 25±1. 59) ? / mm; 3 cases were performed resection of medial rectus muscle and recession of lateral rectus muscle, the corrective extent was (4. 26±1. 04) ? /mm; only 2 cases were performed recession of lateral rectus muscle, the corrective extent was (4. 21±1. 91) ? /mm. In under - correction cases with concomitant esotropia, 6 cases were performed resection of lateral rectus muscle, the corrective extent was (4. 03±0. 98) ? /mm; 6 cases were performed resection of lateral rectus muscle and recession of medial rectus muscle, the corrective extent was (6. 86 ± 1. 32) ? / mm; 3 cases were performed recession of medial rectus muscle, the corrective extent was ( 4. 33 ± 0. 29 ) ? / mm. In over -correction cases with concomitant exotropia, 16 cases were performed advance of lateral rectus muscle, the corrective extent was (5. 37 ± 1. 56) ? / mm; 6 cases were performed recession of medial rectus muscle, the corrective extent was (6. 29 ± 3. 68) ? / mm; 5 cases were performed advance of lateral rectus muscle and recession of medial rectus muscle, the corrective extent was (5. 46±1. 78) ? / mm; 1 case were performed resection of lateral rectus muscle, the corrective extent was 5. 00? / mm. In under - correction cases with concomitant exotropia, 12 cases were performed resection of medial rectus muscle, the corrective extent was (4. 47 ± 0. 54) ? / mm; 16 cases were performed recession of lateral rectus muscle and resection of medial rectus muscle, the corrective extent was ( 5. 11 ± 0. 75 ) ? / mm; 2 cases were performed recession of lateral rectus muscle, the corrective extent was (2. 65±0. 42) ? / mm.
CONCLUSION: In reoperation of concomitant strabismus patients with over-correction, weakening or/and strengthening the horizontal muscle which were performed surgery before has a greater and more unstable surgical corrective extent. While In reoperation of concomitant strabismuspatients with under -correction, weakening or/ and strengthening the horizontal muscle which were not performed surgery has a normal corrective extent as usual.

AIM:To investigate effect of hypoxia on the expression of proliferating cell nuclear antigen(PCNA) a nd phenotype of cardiac fibroblasts(CFs). METHODS: The purif ied cardiac fibro blasts were cultured and divided randomly into there groups :control group, mode rate hypoxia(MH) group and severe hypoxia(SH) group. After 72 h,MTT method was u s ed to investigate the proliferation of CFs, and the ultrastructure of fibroblast s were observed with transmission electron microscopy The expression of PCNA a n d ?-actin in cardiac fibroblasts were measured by the means of immunohistochemi s try and laser scanning confocal microscopy, respectively. RESULTS: MTT A 490 nm value of MH group was significantly higher than that of control group by (18 4?25 0)% ( P

Objective To establish a method for determining volatile components from Actinidia valvata Dunn .Methods A static headspace‐gas chromatography‐mass spectrometry (HS‐GC‐MS) method was used to analyze volatile components , and the separated peaks were identified by mass spectal library searching combined with retention index comparison .Results 42 volatile components were separated from Actinidia valvata Dunn and 25 of them were identified ,mainly including alcohols ,es‐ters ,aldehydes ,hydrocarbons and so on .Conclusion Combined with retention index calculation ,this method improved accuracy of qualitation of HS‐GC‐MS and provided scientific proof for the exploitation and utilization of Actinidia valvata Dunn .

OBJECTIVETo explore the clinical efficacy of the treatment of comminuted trochanteric fractures and trochanteric osteotomy non-union in revision total hip arthroplasty with tension-band fixation.

METHODSA retrospective review of 295 revision total hip operations performed between 1992 and 1998 was undertaken. Twenty hips of 19 patients with comminuted fractures or nonunion of the greater trochanter were stabilized with tension band technique. Multiple 2.0 mm k-wires and tension-band wires were placed through the intact cortex distally and the abductor tendon proximally in the pattern "8".

RESULTSThe average follow-up was 30 months. The Harris Hip Score improved on average from 45 preoperatively to 89 at follow-up. Sixteen hips with intra-operative trochanteric fracture through osteolytic bone and four hips with symptomatic trochanteric nonunion were approached with tension band fixation. Perioperative loss of fixation in one patient required a repeated surgery. The same fixation at the second operation achieved an uneventful healing. Two patients had a 2 cm proximal migration of one K-wire without loss of bony fixation. The trochanteric fractures healed with no further proximal wire migration. One patient had loss of fixation with trochanteric escape at 6 weeks post-operatively. The patient has abductor weakness with Trendleburg limp but without pain. On average, radiographic examination showed that healing occurred at 16.6 weeks postoperatively. Six patients developed grade 1 heterotopic ossification and two patients grade 3. All were asymptomatic. None of the 19 patients experienced a dislocation during the follow-up.

CONCLUSIONSTension-band fixation for greater trochanter can enhance the success rate of revision total hip arthroplasty without a deficient abductor mechanism.

Arthroplasty, Replacement, Hip ; Femur ; surgery ; Fractures, Comminuted ; etiology ; surgery ; Hip Fractures ; etiology ; surgery ; Humans ; Internal Fixators ; Osteotomy ; methods ; Reoperation ; Retrospective Studies ; Treatment Outcome ; Wound Healing

Objective To find out the situation of household consumption of iodized salt in Hebei province so as to provide scientific basis for prevention and control of iodine deficiency disorders(IDD). Methods According to the "national iodine deficiency disorders surveillance program (Trial)", the county (city, district) was taken as a unit, township (town) and administrative villages were selected in accordance with the principle of systematic sampling, then households were chosen by random sampling to collect their edible salt in Hebei province from 2007 to 2009. Salt iodine content was detected by direct titration method. Results A total of 48 675, 48 448 and 48 756 salt samples were collected from 2007 to 2009, respectively. The consumption rate of qualified iodized salt from 2007 to 2009 was 91.16%, 91.96% and 96.17%, respectively. There were 24.6%(41/167)and 18.0%(30/167)counties with consumption rate of qualified iodized salt under 90% in 2007 and 2008, respectively. The percentage of counties with consumption rate of qualified iodized salt above 90% was 100.0%(167/167) in 2009. In general there was a significant differences in frequency distribution of consumption rates of qualified iodized salt among the three years(H = 10.778, P ＜ 0.01 ), and the difference was found significant between 2007 and 2009 as well as between 2008 and 2009(all P ＜ 0.05), but was not significant between 2007 and 2008(P ＞ 0.05). Conclusions The consumption rate of qualified iodized salt at household level increases annually from 2007 to 2009. By 2009,the consumption rate of qualified iodized salt in each county is more than 90%, which has reached the national standard stipulated in "the evaluation programs for fulfilling the goal of eliminating IDD at county level".