Child ; Humans ; Laryngeal Diseases ; pathology ; therapy ; Vocal Cords ; pathology

Objective To explore the effect of endoscopic sinus surgery on inverted papilloma of nasal cavity and paranasal sinuses in 30 cases.Methods 30 patients with inverted papilloma of nasal cavity and paranasal sinuses were operated on by endoscopic sinus surgery.Results During a follow-up of 2～3 years,only four cases recurred, Conclusion Endoscopic sinus surgery had advantsges of clear field and little injury,and therefore it was effective for inverted papilloma of nasal cavity and paranasal sinuses.

Objective To investigate the effects of Naoluoxintong which is representative prescription of supplementing Qi and activating blood therapy(Yiqihuoxue),the prescription of supplementing Qi therapy(Yiqi) and the prescription of activating blood therapy(Huoxue) on local cerebral ischemia-reperfusion injury rats.To observe the changes of neural stem cells(NSCs) and correlated SVZ factors.Methods Models of local cerebral ischemia-reperfusion were established by thread-occluding the MCA.The time points were observed at 1,3,7 d after reperfusion following 2 h of MCAO respectively.The expression levels of Nestin were measured by immunohistochemical staining.Results The expression of Nestin of treatment groups increased significantly compared with model group at 7 d(P

Objective: To investigate the effects of human tissue inhibitor of matelloproteinase 4 (TIMP 4) on vascular smooth muscle cells (VSMCs) migration and the neointimal formation after balloon injury in rats. Methods: The cultured VSMCs were transfected with an adenoviral vector containing human TIMP 4 gene, AdTIMP 4. Effect of TIMP 4 on VSMC migration was investigated by monolayer cell scrape. AdTIMP 4, control adenoviral vector or PBS was transduced into the rat carotid artery from the adventitial after carotid artery injury. Cell number within the internal elastic lamina 4 days after gene transfer was counted and neointima/media area ratio 28 days after gene transfer was calculated. Results: The migration distance of VSMCs infected with AdTIMP 4 was inhibited markedly. Morphometric analysis demonstrated a statistically significant reduction in the number of cells migrated into neointima compared with controls [(32.5?4.8) cells per section, (33.8?7.0) cells per section and (8.2?2.4) cells per section for uninfected, AdGFP treated and AdTIMP 4 treated arteries, respectively]. There was a reduction of intima/media ratio of TIMP 4 treated group by 66.5% compared with control groups 28 days after gene transfer ( P

Objective To study the level of serum IL-10 in renal allgraft recipients with stable renal function,acute rejection,infection and chronic allgraft nephropathy(CAN),and to study the level of serum IL-10 in stable renal function recipients with different postoperative time,different dosage of CsA,different rejective frequency in order to find out the value of IL-10 in the follow-up of out-patients. Methods IL-10 were detected randomly by ELISA technique in 127 renal allgraft recipients during the follow-up,and 20 healthy volunteers were enrolled as controls.Results Level of serum IL-10 in stable renal function group was significantly higher than that in rejection group,CAN group and control group(P

Objective To identify the pathogens that cause hand, foot and mouth disease (HFMD) in adults and analyze the nucleotide sequences characteristics of enterovirus 71 (EV71). Methods The reverse transcription-polymerase chain reaction (RT-PCR) method was used to detect the enterovirus from the samples of four adult HFMD patients. The 227 bp amplified segments of EVT1 were then sequenced and compared with the sequences of previously isolated EVT1 strains available from GenBank by homogeneity and phylogenetic tree analyses. Results All the results of RT-PCR with enterovirus universal primers and EVT1 specific primers were positive. The EV71 sequences analysis showed that the four new sequences (named as GZ19610, GZ99310, GZ99355 and GZ46477) shared 96.0% to 99.1% nucleotide identify themselves and shared 96.9% to 100.0% homology with the strain Fuyang/17.08/3 isolated in 2008 from Fuyang, Anhui Province. Phylogenetic tree analysis showed that the genotype of the four new sequences was all subtype C4, they were the same sub-genotype as those strains isolated from Chinese mainland and Chinese Taiwan in 2004, and the genetic distance between them was most closely. Conclusions EV71 can cause adult HFMD. Compared with the nucleotide sequences of EV71 strains that isolated now and formerly in China, there is no large variation of the EV71 sequences isolated from four adult HFMD patients in Guangzhou this time. The adult HFMD patients should be isolated for treatment to avoid them transmitting the virus and causing disease spreading.

Objective To investigate the effect of perfusion and preservation with intragraft dipeptidyl peptidase Ⅳ (DPP Ⅳ) catalytic inhibitor on pulmonary function after lung transplantation in rats. Methods Pure SD rats were divided into six groups. Syngeneic rats (SD to SD) served as donors and recipients. Orthotopic lung transplantation model was used. Grafts of control groups (CONI and CON2) were flushed and preserved in LPD-glucoae exposed to 18 h of cold ischemia before transplantation. Peak airway pressure (PIP), blood gas (PO2), wet/dry weight ratio (W/D), the activity of myeloperoxidase (MPO) and the content of malonyldialdehyde (MDA) of CON1 group were analyzed at first day after transplantation. In CON2 group, the 7-day survival rate post-transplantation was observed. Experimental groups were divided into four sub-groups (EXP1-EXP4), and grafts were perfused and stored for 18 h with LPD-glueose plus DPPⅣ catalytic inhibitor. The pulmonary function was detected at 1st (EXP1), 3rd (EXP2), 5th (EXP3), and 7th day (EXP4) posttransplantation, respectively. Results The rats in CON2 were died at 7th day post-transplantation,and all rats in EXP4 group survived to the 7th day post-transplantation. As compared with CON1 group, PIP, W/D, MPO activity and MDA content were reduced (P<0. 01 or 0. 05), and PO2 increased (P<0. 05) in EXP4 group. The pulmonary function of DPPⅣ catalytic inhibitor-perfused grafts from 1 to 7 days was improved and all tested parameters were close to normal at 7th day.Conclusion Perfusion and preservation with an inhibitor of CD26/DPP Ⅳ enzymatic activity obviously reduced severity of ischemia-reperfusion injury and was beneficial to the rehabilitation of grafts'pulmonary function.

120 age- and body mass-matched Lewis rats underwent anastomosis of vessels and bronchus using cuff technique and 60 rats received orthotopic left lung transplantation. All procedures were done by one operator. The feasibility and reliability of this technique was determined by examining graft patency usng X-ray, gross and histological examinations. The successful rate of the surgery was 96.7%, mean warm ischemic time was (14.5±3.2)min. On gross examination, grafts were well perfused and ventilated.Recipients of 14d after transplantation showed excellent chest X-ray signs and perfect graft function. The animal model established in this study has been verified to be a safe, simple and reproducible model.

AIM: To examine the alteration of pathologic structure and gaseous molecules in rats with pulmonary hypertension induced by high pulmonary blood flow.METHODS: Aortocaval shunting was produced for 11 weeks in rats, and pulmonary hemodynamics was evaluated.Pulmonary vascular micro- and ultra- structure was also examined.Meanwhile,the concentration of plasma nitric oxide (NO) and carbon monoxide (CO) was measured by spectrophotometry.The expression of endothelial nitric oxide synthase (eNOS) and heme oxygenase-1 (HO-1) in pulmonary arteries was detected by immunohistochemistry.RESULTS: After 11- week aortocaval shunting,pulmonary artery mean pressure was significantly increased.Muscularization of small pulmonary vessels and relative medial thickness and area of pulmonary arteries were obviously increased in shunting rats compared with controls.Ultrastructure of intrapulmonary arteries changed obviously in shunting rats.Meanwhile,plasma NO concentration was increased and eNOS expression in pulmonary artery endothelial cells was significantly augmented in rats of shunting group.Plasma carbon monoxide level and HO-1 expression in puomonary artery smooth muscle cells,however,were not altered in shunting rats.CONCLUSIONS: Pulmonary vascular structural remodeling is the important pathologic basis of pulmonary hypertension induced by a left-to-right shunt,and NO other than CO might play an important regulating role in the development of high pulmonary blood flow-induced pulmonary hypertension.

Child ; Child, Preschool ; Female ; Hand, Foot and Mouth Disease ; complications ; Humans ; Infant ; Male ; Nail Diseases ; etiology