Objective To observe the safety and effectiveness of inductive chemotheray with lobaplatin plus 5-Fu (LF regimen) and concurrent chemoradiotherapy with lobaplatin for local-regionally advanced nasopharyngeal carcinoma (NPC) patients,and investigate the appropriate lobaplatin dose for the concurrent chemoradiotherapy.Methods Newly diagnosed local-regionally advanced NPC patients signed informed consent.The inductive chemotherapy was lobaplatin 30 mg/m2 + 5-Fu 4 g/m2 civ 120 h for 2 cycles every 21 days,then concurrent lobaplatin chemoradiotherapy was conducted.The initial lobaplatin dose for concurrent chemoradiotherapy was 50 mg/m2 with at least 3 cases in every dose level.If 2 of 3 patients presented dose-limiting toxicity (DLT),5 mg/m2 dose decreased for the next level until maximal tolerant dose (MTD) reached.The tumor response was evaluated after inductive chemotherapy,at the end of the chemoradiotherapy,3 months after chemoradiotherapy and 6 months after chemoradiotherapy.Results From Dec 2011 to Apr 2012,11 patients were enrolled in this study.After 2 courses of inductive chemoradiotherapy,CR,PR and SD were observed in 1,8 and 2 patients,respectively.At the end of the chemoradiotherapy and 3 months after chemoradiotherapy,CR and PR were observed in 10 and 1 patients,respectively.Six months after the chemoradiotherapy,all patients were CR.For the patients(3 in each arm) received 50 mg/m2 or 45 mg/m2 lobapaltin concurrent chemoradiotherapy,2 patients in each arm presented DLT.For the 5 patients received 40 mg/m2 lobapaltin concurrent chemoradiotherapy,no patients presented DLT.40 mg/m2 was suggested as the MTD.Inhibition of platelet was the major DLT.Conclusion Inductive chemotherapy with LF regimen and concurrent chemoradiotherapy with lobaplatin is safe and effective for local-regionally advanced NPC patients and the MTD of lobaplatin for the concurrent chemoradiotherapy is 40 mg/m2.Further clinical trial with large sample is expected.

OBJECTIVEThe skeletal Class III malocclusion often occurs in ethnic Asia population, and it is difficult to obtain an ideal results if only treated with protraction headgear (PH). However, the combined rapid palatal expansion (RPE), Edgewise Technique and PH can reach it, so the authors investigated the methods and characteristics of combined RPE, Edgewise Technique and PH in the treatment of skeletal Class III malocclusion.

METHODSFifteen patients, aged 8.5-12 years, including six males and 9 females, with skeletal Class III malocclusion and maxillary retrusion were selected for this study. Radiographs of left hand and wrist showed that all patients were at the pre-pubertal stage. The duration of treatment was nine months on average.

RESULTSThe SNA and A-ptm increased with a mean of cephalometric analysis, which showed significant difference (P < 0.05).

CONCLUSIONObvious skeletal and profile changes can be achieved with combined RPE, Edgewise Technique and PH in the treatment of early skeletal Class III malocclusion.

Child ; Extraoral Traction Appliances ; Female ; Humans ; Male ; Malocclusion, Angle Class III ; therapy ; Orthodontics, Corrective ; instrumentation ; methods ; Palatal Expansion Technique

Objective To explore the effects of gossypol acetate on the morphological features and the gene expression in the femoral head of Sprague-Dawley rat in vivo after treated with dexamethasone .Methods Dexamethasone(Dex) was injected into the abdominal cavity of SD rats at an dose of 10 mg/kg ,twice a week ,and feed gossypol acetate 5 mg · kg -1 · d-1 .The controls re-ceived saline 2 mL injection .The treatment lasted for 12 and 20 weeks .The slices of the femoral head were made for HE and immu-nohistochemical study .The total mRNA was extracted for RT-PCR assessment .Results The cancellous bone trabecular became sparse ,trabecular bone area ratio decreased ,bone marrow fat tissue increased .These changes were fitted for pathological character of bone necrosis .The gossypol acetate could not affect the pathological changes .The proportion of the positive stained osteoblasts increased ,adipocytes decreased .PPARγ,C/EBPα,11β-HSD1 expression enhanced ,Runx2 down regulated in the treatment groups and GAA group .Conclusion Dex can induce evident pathological changes conform to the characters of femoral head necrosis .They may have closed correlation between 11β-HSD1 and the gene expression .But GAA could not affected the pathological changes and abnormality of the gene expression .

Purpose: This study was aimed to investigate long-term survivals and toxicities of early-stage nasopharyngeal carcinoma (NPC) in endemic area, evaluating the role of chemotherapy in stage II patients. Materials and Methods: Totally 187 patients with newly diagnosed NPC and restaged American Joint Committee on Cancer/ International Union Against Cancer 8th T1-2N0-1M0 were retrospectively recruited. All received intensity-modulated radiotherapy (IMRT)±chemotherapy (CT) from 2001 to 2010. Results: With 15.7-year median follow-up, 10-year locoregional recurrence-free survival, distant metastasis-free survival (DMFS), disease-specific survival (DSS), and overall survival (OS) were 93.3%, 93.5%, 92.9% and 88.2%, respectively. Multivariable analyses showed cervical lymph nodes positive and pre-treatment prognostic nutritional index ≥ 52.0 could independently predict DMFS (p=0.036 and p=0.011), DSS (p=0.014 and p=0.026), and OS (p=0.002 and p < 0.001); Charlson comorbidity index < 3 points could predict DSS (p=0.011); age > 45 years (p=0.002) and pre-treatment lactate dehydrogenase ≥ 240 U/L (p < 0.001) predicted OS. No grade 4 late toxicity happened; grade 3 late toxicities included subcutaneous fibrosis (4.3%), deafness or otitis (4.8%), skin dystrophy (2.1%), and xerostomia (1.1%). No differences on survivals were shown between IMRT+CT vs. IMRT alone in stage II patients, even in T2N1M0 (p > 0.05). Unsurprising, patients in IMRT+CT had more acute gastrointestinal reaction, myelosuppression, mucositis, late ear toxicity, and cranial nerve injury (all p < 0.05) than IMRT alone group. Conclusion Superior tumor control and satisfying long-term outcomes could be achieved with IMRT in early-stage NPC with mild late toxicities. As CT would bring more toxicities, it should be carefully performed to stage II patients.