Objective To explore the feasibility and clinical resuhs of the tension skin flap of the pedicle of distally based skin flap or reverse-flow island flap. Methods Nine cases were repaired using reversed island flap pedicled with cutaneous branches of medial supramalleolar of posterior tibial artery in clinic,2 cases using distally based skin flap pedicled with the medial perforator of the posterior tibial artery,8 cases using reversalisland flap of peroneal artery lateral mulleolus skin perfarator 4 cases using reversed island flap pedicled with superficial peroneal nerve and its nutrient vessels. 3 cases using distally based sural neurocutaneous flap,and 2 cases using reversed island flap pedicled with dorsal fascia of hand.The area of the tension flap was 1.0 cm×1.0 cm to 5.0 am×3.5 cm. Results All the flaps completely survived.On the postoperative years follow-up,the texture of the flap was excellent,and primary healing was obtained at the donor site. Conclusion It's effective to design at the pedicle of the distally based flap or reversed island flap a tension skin flap,which can prevent the vessels from compressing or destroying.

Objective To explore the clinical curative effect of hollow screw internal fixation for the treatment of distal epiphyseal teenagers tibial fracture.Methods Thirty -nine cases of epiphyseal fractures of the distal tibia were treated in Shanghai Children′s Hospital between February 2005 and September 201 4.This study included 24 boys and 1 5 girls with the average age of 1 3.1 years (ranged 1 0.5 to 1 6.2 years old).Preoperative diagnosis was confirmed by the X -ray films or CT examination.All the cases were closed fractures and manipulative reduction all failed.Surgi-cal reduction was performed when plain radiographs showed the fracture gap of epiphysis board and articular surface were greater than 2 mm or after closed reduction.Under C -arm X -ray machine,ankle axial traction was performed initially.Anatomical reduction underwent according to the bone fracture type.The fractures were fixed with cannulated screws by percutaneous or open approach.Postoperative X -ray or CT confirmed anatomical reduction at articular sur-face and growth plate.All patients had been immobilized with short -leg cast for 4 -6 weeks.The ankle joint function and growth were evaluated by means of American Orthopaedic Foot and Ankle Society(AOFAS)Ankle Hindfoot Scale. Results All patients were followed up for 5 to 91 months with an average duration of 35 months.X -ray films showed that all fractures were bone healing.No uneven articular surface was found and there was no extremity rotation and shorte-ning deformity.Results were evaluated by AOFAS scoring system:excellent in 27 cases,good in 10 cases,and general in 2 cases.All patients were able to participate in the normal physical activities.Conclusions CT with multiplanar recon-struction is a premise to make an accurate diagnosis and to choose a reasonable approach.For failed closed reduction for adolescent distal tibial epiphyseal fractures,the cannulated screws are simple and may have a satisfactory effect.

Adult ; Female ; Humans ; Male ; Middle Aged ; Paint ; poisoning ; Solvents ; poisoning ; Young Adult

Acute Disease ; Coronary Aneurysm ; diagnostic imaging ; etiology ; Female ; Humans ; Infant ; Intracranial Hemorrhages ; diagnosis ; diagnostic imaging ; etiology ; Male ; Mucocutaneous Lymph Node Syndrome ; complications ; diagnosis ; diagnostic imaging ; Tomography, X-Ray Computed

Objective To explore the relationship between serum HBV DNA level , expression of PD-1 on CTL and liver functions in patients with hepatitis B virus cirrhosis. Methods 109 HBV hepatic cirrhosis patients with , HBV DNA positive , HBeAg positive and HLA-A2 positive were divided into two groups according to their HBV DNA levels,52 cases in group A, HBV DNA 2-4 log10 copies/mL, 57cases in group B, HBV DNA 5-7 log10 copies/mL , differences of HBV specific CTL surface PD-1 expressions , HBV specific CTL levels and liver functions were compared between two groups. Results HBV specific CTL surface PD-1 expressions of group A were lower than that of group B (t = 11.101, P < 0.01), HBV specific CTL levels of group A were higher than that of group B (t = 24.424, P < 0.01), ALT of group A were lower than that of group B (t = 2.652, P < 0.01), ALB of group A were higher than that of group B (t = 2.347, P < 0.05). Child-pugh rating, grade C of group A was lower than that of group B (χ2= 4.262,P < 0.05). Conclusions HBV specific CTL surface PD-1 expression levels were higher in those hepatic cirrhosis patients with , high level of serum HBV DNA, and HBV specific CTL levels were lower, liver functions damage were much serious. So, lower HBV DNA levels , lower HBV specific CTL surface PD-1 expression levels and higher HBV specific CTL levels can product relatively good effect of anti-viral treatment.

The conventional therapy for arteriosclerosis obliterans (ASO) is Western medicine. However, it has some adverse effects and does not respond to some patients, and it is also very expensive.

Objective To confirm the transmission of Toxoplasma gondii by semen and to investigate the impact of vaginal status on the transmission of T. gondii in female rabbits. Methods Sixteen male rabbits were infected with T. gondii by intraperitoneal injection each with 1 ×105 RH tachyzoites. Eight rabbits died in 8-14 d after infection.Artificial vagina was used to collect semen from male rabbits weekly before and after infection for 8 weeks. If more than 2 portions of semen from 8 survived male rabbits were collected after infection, the collected semen was mixed weekly for later use. Twenty-seven female rabbits were divided into 4 groups: group 1 with normal vagina (7 rabbits), group 2with wounded vagina (7), group 3 with trichomonas vaginitis (7) and group 4 with colpomycosis infection (6). Tachyzoites were found in mixed semen digested by trypsinase, and were used for endovaginal artificial insemination to female rabbits by uterine cavity tube once a week for 8 consecutive weeks. 2-3 d after every insemination, 2 ml blood was collected from helix vein of each rabbit, and stored at -40 ℃ for use. Anti-T. gondii antibody was examined by ELISA and the B1 gene of T. gondii was detected by PCR. Results Anti-T. gondii antibody was detected in some rabbits (2, 3, 1, and 1 rabbits from each of the groups respectively) on the 16th day after the first insemination. The positive rate of ELISA was 25.9%. The amplification of B1 gene (200 bp) by PCR appeared positive from the blood samples on the 3rd day after the first insemination and the last positive one was proved on the 51th day after the first insemination.Number of positive samples was 2, 1, 3 and 1 in the 4 groups respectively, with an overall PCR positive rate of 18.5%.Only 3 of the 27 rabbits were positive by both ELISA and PCR. Conclusions T. gondii can be transmitted by semen and the health status of vagina shows no impact on it.

Objective To explore the histocompatibility and plasticitity of hydroxyapatite/high-density polyethylene composite (HMPE). Design Experimental study. Participants Forty-five rabbits. Methods Rabbits were randomly devided into HA/PE, HA and PE surgical groups, every group included 15 rabbits. Osteoeetomy of orbital rim and implantation (HA/PE, HA and PE materials were used) were performed on 3 groups of the rabbits. At 1st week, 4th week, 8th week, 12th week and 24th week of postoperation, we took out the samples from the rabbits separately in each group and did histopathologic and electron microscope examinations. Main Outcome Measures Physical signs of the implant combination with the bone. The bone cell appeared in the implants. Results After 12 weeks, the calcium salts deposit like bone plate with some osteoblast inside the HA/PE implants was observed. After 8 weeks, the calci- um salts deposit inside the HA plants was observed. In the PE implants, nothing could be seen but some fibrous connective tissue. Conclusion HMPE is an ideal repair material especially for orbital bone.

Objective ToinvestigatethementaldevelopmentsituationofpreschoolchildreninTaiyuan. Methods 1174preschoolchildrenoftwourbanareasinTaiyuanwereselected.TheyweretestedwithDenverDevel-opmentScreenTest(DDST).Results Thepassingratewas94.80%in1174children.Theirindividual-social reaction ability and movement ability were good in the three groups.In the subject-touch reaction ability,the passing rate ofvertical tilt at 30°insidewas 36.36%in 4 years old group,which was higher than the other projects.In the speaking ability,the passing rates of three right in four problems with knowing preposition were 15.88% and 27. 22% in 4 and 5 years old group,which were higher than the other projects.The culture degree of the mental retar-dation children's parents were lower than those of the normal children's parents,the difference were statistically signifi-cant(χ2=4.485,P=0.034;χ2=7.577,P=0.006).Conclusion DDSTisaquicklyscreeningmethodformental retardation children,it is suggested to be used in medical and health examination for preschool children.

Objective To study inflammatory cytokines changes in brain tissue of neonatal rats with periventricular leukomalacia (PVL).Method A total of 80 neonatal SD rats (P3) were randomly assigned into 2 equal groups,sham-operated group and PVL group.Rats in each group were further assigned into four subgroups (12,24,48,72 h),with 10 rats in each subgroup.The hypoxic-ischemic PVL modal were established following the procedure:first,isolation and ligation of left common carotid artery,and then exposed to 8％ O2 and 92％ N2 for 2.5 h.The sham-operated rats were processed with isolation of left common carotid artery only.Rats of the four subgroups were sacrificed at 12,24,48 h and 72 h respectively,then the brains were rapidly removed in corresponding time.Pathological changes of brain tissues were observed using HE stain.The mRNA expression levels of tumor necrosis factor α(TNF-α)and inter leukin-1β (IL-1β) were assessed using real-time quantitative PCR assays,the protein levels of TNF-α and IL-1β were detected using enzyme linked immunosorbent assay method.Result The brains tissues of rats in PVL group showed remarkably hyperemia and edema,with left ventricle enlargement.Periventricular white matter structure was disintegrated comparing with sham-operated group.The expression of TNF-α and IL-1 β mRNA in PVL group increased significantly,reaching peak by 24 h and then gradually decreased 72 h after the procedure.The mRNA levels of TNF-c and IL-1 β were significantly different between each two time points of 12,24 h and 48 h in PVL group (P ＜0.05).However,there was no differences between 72 h and 48 h within PVL and sham-operated group group(P ＞0.05).In PVL group,the protein expression trends of TNF-α and IL-1 β were similar to mRNA expression trends.Moreover,the protein levels were significantly different between each two time points of TNF-α and IL-1 β,respectively (P ＜ 0.01).The protein expression levels of TNF-α were different at each time point between PVL group and sham-operated group[(189.2 ± 20.4) pg/ml vs.(131.4 ±5.2) pg/ml at 12 h,(213.8 ± 16.7) pg/ml vs.(127.7 ±7.4) pg/ml at 24 h,(181.7 ± 15.0) pg/ml vs.(126.3 ± 6.0) pg/ml at 48 h,(159.6 ± 25.3) pg/ml vs.(131.4 ± 6.0) pg/ml at 72 h;P ＜0.01].The protein levels of IL-1β were different between the two groups only at 24 h and 48 h.[(121.8 ±30.0) pg/ml vs.(67.4 ± 13.7) pg/ml,(83.3 ± 15.7) pg/ml vs.(65.3 ± 14.9) pg/ml;P ＜0.05].In sham-operated group,no differences of TNF-α and IL-1 β protein levels were found between any different time points (P ＞ 0.05).Conclusion Inflammatory cytokines such as TNF-α and IL-1β are involved in ischemic-hypoxia induced PVL.Dynamic detection of inflammatory factors is expected to be an important method of early diagnosis,assessment of treatment efficacy and prognosis of PVL.