Objective To study the effects of Xiaofeng Powder on IL-4,IFN-? and sIL-2R in delayed hypersensitivity and to explore the mechanism of treatment. Methods The mice model of allergic contact dermatitis was formed by DNCB. The effect of Xiaofeng Powder on ear swelling and leukocyte counts of the model mice were observed. The serum levels of interleukin-4 (IL-4),interferon-gamma (IFN-?) and soluble interleukin-2 receptor (sIL-2R) of the mice were detected by enzyme-linked immunosorbent assay (ELISA). Results Xiaofeng Powder could inhibit ear swellings and obviously reduced the total amount of leucocytes. Xiaofeng Powder could heighten IL-4 level and reduce the level of IFN-?,sIL-2R. Conclusion Xiaofeng Powder has the function of inhibiting delayed hypersensitivity. The mechanism of treatment may be related to inhibiting the total amount of leucocytes,regulating cell factor and receptor.

Objective To analyze the occurrence of traumatic carotid cavemons fistula (TCCF) resulted from the fracture of basilaris cranii, in order to find out the related factors to outcomes and to discuss the approaches to improving prognosis.Method Data of 312 patients with the fracture of skull base complicatcd with TCCF con-firmed angiography from 1999 to 2005 were analyzed. These patients were classified into patients with disable and patients without disabed. The factors potentially impacting on outcomes were analyzed. Results The overall inci-dence of TCCF in 312 patients with fracture of basilaris cranii was 3.8% .The incideucs of TCCF occurred in pa-tients with the fracture of anterior fossa, middle fossa and posterior fossa accounted for 2.4%, 8.3 % and 1.7 %, respectively. Between two cohorts of patients, there were no difference in age, gender, number of embelization proce-dares performed and the time from injury to appearence of the first symptom except the differencc in time from ap-pearence of the first symptom to the intravascular embohzation performed (P>0.05). Conclusions A relatively high incidence of TCCF occurs in patients with middle fossa fractures, especially those with transverse or oblique fractures. Prompt diagnosis and intervention can not be emphasized in case of patients with TCCF, and non inva-sive techniques for the early detection of TCCF under certain circumstance after brain or facial trauma should be considered so as to avoid a miss in the early diagnosis of middle fossa fracture to ensure favourable outcomes.

Objective To observe the clinical characteristics of rhegmatogenous retinal detachment (RRD) secondary to conservative therapy in retinoblastoma (RB) patients.Methods A retrospective study. From July 2013 to May 2017, 20 RRD patients (20 eyes) of 456 RB patients (573 eyes) treated in Xinhua Hospital of Shanghai Jiao Tong University School of Medicine were included in the study. Eleven patients (11 eyes) were boy and 9 patients (9 eyes) were girls. Thirteen patients demonstrated bilateral RB and 7 patients had unilateral RB. Average age when diagnosed with RB was 25 months. International Classification of Retinoblastoma groups were C in 1 eye, D in 17 eyes, and E in 2 eyes. These patients received intra-arterial chemotherapy (17 eyes), intravenous chemotherapy (11 eyes), intravitreal chemotherapy (8 eyes), laser (14 eyes) and/or cryotherapy (5 eyes). Twelve patients (12 eyes) received vitreoretinal surgery including vitrectomy (6 eyes) and scleral buckling (7 eyes). The mean follow-up was 39 months. Fundus examination was performed under general anesthesia during comprehensive treatment and follow-up. The time interval of fundus examination varied from 1 to 6 months depending on the stability of the tumor.Results RRD was noted in 20 eyes (3.5％) with RB. Retinal hole was found in 15 eyes (75％). The cause of RRD was atrophic hole in calcified tumor (6 eyes, 30％), cryotherapy-related hole (5 eyes, 25％) and laser-related hole (9 eyes, 45％). Multiple atrophic hole in calcified tumor was noted in 3 eyes. Size of hole smaller than 2 DD was noted in 8 eyes (53％), and larger than 2 DD was noted in 7 eyes (47％). Holes were in posterior (3 eyes), equator (2 eyes) and periphery (10 eyes). Severe proliferated was noted in 1 eye. No tear was found. No bulbar retinal detachment and choroidal detachment was noted. Among 12 eyes who underwent vitreoretinal surgery, reattachment was achieved in 9 eyes (75％). No metastasis was noted.Conclusions Calcified regression of tumor, cryotherapy and laser were main reasons of RRD. Most of the holes are small in diameter and located in the periphery.

China/epidemiology* ; Humans ; Pemphigoid, Bullous/epidemiology* ; Retrospective Studies

Humans ; Neoplasms, Second Primary/epidemiology* ; Neoplasms/epidemiology* ; Risk Factors ; Prognosis