Compared with CT scan results of OSAS patients and normal adults to explore the value of CT diagnosis of upper airway stricture in patients with OSAS, 35 patients with OSAS and 35 normal adults were included in the study. 22, 19, 12, 8 cases had obstruction at palate, uvula, lingua and epiglottis region respectively, the awaked CT scan results of 61 obstructive sites were compared with those of normal adults. Obvious difference was found between patients and normal adults in area, left right dimension and coronal dimension. difference was also found in thickness of lateral pharyngeal tissue of palate, uvula and lingua region and retropharyngeal tissue of palate and uvula. The normal extent was determined by unilateral 95% confidence interval in normal adult group. And 43 sites had abnormal CT scan results, the positive ratio was 72 13%. The results sugget that there are obvious differences between the patients with OSAS and normal adults, the CT scan measure can show the upper airway obstructive site of patients with OSAS.

Objective To investigate the short and long term therapeutic effects of prostaglandin E1 (PGEl) on diabetic nephropathy (DN). Methods Patients with DN in stage Ⅲ to Ⅴ according to Mogensen criteria were randomly assigned to four groups of PGE1, angiotensin-converting enzyme inhibitor (ACEI), PGE1 + ACEI and control drug. The levels of proteinuria and albuminuria were measured before and 15 days, 6 months and 18 months after treatment. Patients with DN in stage Ⅳ were subdivided into three groups according to proteinuria: early stage IV (protienuria was less than 1.5 g/d), middle stage Ⅳ (protienuria was between 1.5 g/d and 2.5 g/d) and late stage Ⅳ (protienuria was larger than 2.5 g/d). Results Fifteen days after treatment, the levels of proteinuria and albuminuria were significantly decreased compared with pre-treatment in PGE1 and PGE1 + ACEI groups (P<0. 01), and the therapeutic effect was better in PGE1 + ACE1 group than in ACEI group (P<0. 01). Six months after treatment, there were still significant differences in above parameters in patients with DN in stage Ⅲ and Ⅳ between PGE1 + ACEI and PGE1 groups. And for the patients in stage Ⅴ, statistic significance between pre-and post-treatment existed only in PGE1 + ACEI group (P<0. 05). but not in PGE1 and ACEI groups (both P>0. 05). Eighteen months atter treatment, the levels of proteinuria and albuminuria were significantly decreased in patients in stage HI and early stage IV in all treatment groups (P<0. 01). For patients in middle stage IV and late stage Ⅳ , the significant differences still occurred between pre-and post-treatment in PGE1 + ACEI group (P<0. 01 or P<0. 05), and were significantly better than in ACEI group (P<0. 01 or P<0. 05). However, the proteinuria of patients in late stage IV elevated in PGE1 group in post-treatment versus pre-treatment (P<0. 05). Conclusions The short term therapeutic effect of PGE1 is quick and good in patients with DN. The therapeutic effect is much better in patients in stage Ⅲ compared with stage Ⅴ. The combination of PGE1 and ACEI will get better best therapeutic effect than PGE1 or ACEI alone in long term.

Objective To investigate the effects of prostaglandin E1(PGEl)in improving proteinuria and albuminuria in the elderly people with diabetic nephropathy(DN). Methods Patients including stage Ⅲ,stage Ⅳ and stage Ⅴ were divided into four groups:conventional therapy group,PGE1 group,PGE1+ACEI group and ACEI group.Proteinuria and albuminuria were measured before and after treatment for 15 days,3 months,6 months. Results (1)In the DN patients in stage Ⅲ and stage Ⅳ (proteinuria＜2.5 g/d),the proteinuria and albuminuria descended markedly in PGE1+ACEI and PGEl group(P＜0.01).It was better than that in eonventionaI therapy and ACEI group.(2)In the DN patients in stage Ⅳ(proteinuria＞2.5 g/d),proteinuria and albuminuria were not changed significantly after 3 months and 6 months in PGE1+ACEI and PGE1 group,but they were increased in conventional group(P＜0.05).(3)In the DN patients in stage Ⅴ,the proteinuria and albuminuria were not changed much after 1 5 days,3 months and 6 months(P＜0.05).The proteinuria and albuminuria were increased by more than 10 percent(P＜0.01)in the conventional group after 3 and 6 months. Conclusions The therapeutic effects of PGE1 are obvious.Early treatment of nephropathy will get a better improvement in patients with diabetic nephropathy.

Objective:To compare the models of guinea pig allergic rhinitis induced by different allergens. Methods: Ovalbumin (OVA), 2,4-tolylene diisocyanate (TDI) and alternariaalternata was respectively used as the allergens to establish the model of guinea pigs allergic rhinitis. The conformity of the models and human allergic rhinitis was studied through the behavioral indices, such as the times of nose itches, nasal discharge flow, histological properties and serum HA and IgE indices. Results:The times of sneezing and scratching nose, serum HA and IgE in OVA group was significantly different from those in the control group (P<0. 001 or P<0. 01). Conclusion:The models of allergic rhinitis induced by OVA are the same as allergic rhinitis in typical symptoms and pathological changes.

Objective To observe the clinical effect of mechanical perfusion preservation kidney transplantation in donor after cardiac death (DCD),and to explore the effect of mechanical perfusion preservation of DCD on renal function recovery.Methods The clinical data of 186 patients undergoing DCD kidney transplantation from January 2012 to December 2016 were retrospectively analyzed.Sixty-eight DCD donor's kidneys were preserved by LifePortpreservation (low temperature mechanical perfusion group),118 DCD donor's kidneys were preserved by static low temperature preservation (static low temperature preservation group).The renal function recovery,the incidence of primary non-function,delayed graft function and infection,and the survival rate of patients and renal grafts were analyzed.Results There was no significant difference between the two groups in gender,age,hemodialysis ratio,dialysis time,BMI,warm ischemia time and cold ischemia time (P＞0.05).There was significant difference in creatinine value between the two groups at 1st week (P＜0.05),but there was no significant difference in creatinine at 3rd,6th,12th,24th and 36th month (P＞0.05).There was significant difference in the incidence of DGF between two groups (P＜0.05),but no significant difference in the incidence rate of PNF,AR and infection,and the survival rate of patient and renal graft between two groups (P＞0.05).There was no significant difference in 1-and 3-year survival rate of the recipients and transplanted kidney between the two groups (P＞0.05).Conclusion LifePort can significantly reduce the incidence of DGF as compared with static cold preservation.The resistance index and perfusion flow of the LifePort have important significance to assess the renal quality.

Objective To assess the therapeutic effect of human adipose-derived mesenchymal stem cells on radiation-induced vascular injury in the small intestine of rat. Methods A total of 34 male Sprague-Dawley rats were enrolled in this study. To establish a model of radiation-induced intestinal injury, each rat was irradiated with 15 Gy in whole abdomen. 17 rats were randomly selected and infused intraperitoneally with passage 6 ( P6 ) Ad-MSCs, and the other 17 rats that received PBS were set as control. 10 days post-irradiation, the number of CD31+ endothelial cells in the small intestine villus was measured by flow-cytometry, the expressions of CD31, CD105 and isolectin-B4 in the na?ve endothelial cells with detected by IHC-staining, and the vascular integrity was evaluated by measuring VE-Cadherin. The origination of na?ve endothelial cells within injured intestine was also analyzed. In addition, total mRNA were extracted from irradiated small intestine to assay the expressions of VEGF, bFGF, Flk-1 and SDF-1 using quantitative Real-time PCR. Results Compared to the control, the amount of CD31-postive endothelial cells within irradiated intestine was significantly increased after Ad-MSCs infusion ( t=12?15, P<0?05). The microvascular density in the injured sites was also significantly increased by the infusion of Ad-MSCs (20 d:t=10?33, P<0. 05;30 d:t=32?85, P<0?05). Moreover, the expressions of VEGF, bFGF, Flk-1 and SDF-1 were significantly up-regulated after delivery of Ad-MSCs ( VEGF:t =10?34, bFGF:t=11?25,Flk-1:t=6?73, SDF-1:t=6?73, all P<0?05), which was beneficial in maintaining the integrity of intra-villus blood-vessels as well as promoting neovascularization in the injured sites. Conclusion Ad-MSCs had potentials in healing radiation-induced vascular injury in rat small intestine.

Objective To evaluate the therapeutic effect of adipose-derived mesenchymal stem cells on radiation enteritis.Methods A total of 52 male Sprague-Dawley rats were used in the present study.Herein,46 rats were randomly selected and irradiated with a dose of 15 Gy at their abdomens.Two hours post-irradiation,23 rats were randomly selected and infused intraperitoneally with adipose-derived mesenchymal stem cells in passage 6 from young-female donor.The other 23 rats were intraperitoneally infused with PBS.The rest 6 rats were set as normal control.During the first 10 days post-irradiation,peripheral blood-samples from irradiated rats were harvested for testing the levels of IL-10 in serum using ELISA assay.Additionally,after isolating the thymic cells and peripheral blood mononuclear cells,the percentages of CD4/CD25/Foxp(3)-positive regulatory T cells in thymus and peripheral blood were tested by flow-cytometry.Finally,infiltration of inflammatory cells and deposition of collagens within irradiated small intestine were analyzed by H&E staining and Masson Trichrome staining,respectively.Based on the MPO-immunohistochemistry staining,the type of infiltrated cells was identified.The Kaplan-Meier method was used for analyzing the survival rate of irradiated rats.Results During a period of 30 days post-irradiation,the irradiated rats receiving adipose-derived mesenchymal stem cells survived longer than those receiving PBS (t =4.53,P ＜ 0.05).Compared to the irradiated rats with PBS-treatment,adipose-derived mesenchymal stem cells could elevate the level of IL-10 in serum (7 d:t =13.93,P ＜ 0.05) and increase the percentages of CD4/CD25/Foxp(3)-positive regulatory T cells in both peripheral blood (3.5 d:t =7.72,7 d:t=11.11,10 d:t =6.99,P ＜0.05) and thymus (7 d:t =16.17,10 d:t =12.12,P＜ 0.05).Moreover,infiltration of inflammatory cells and deposition of collagens within irradiated small intestine were mitigated by adipose-derived mesenchymal stem cells.Conclusions Adipose-derived mesenchymal stem cells were capable of curing radiation enteritis.

Dendritic cells (DCs) derived from bone marrow cells are specialized cells for the uptake, processing, and presentation of foreign and self-antigens. The study indicated that re-transfusion of DCs pulsed with tumor-associated antigen can induce an vigorous specific anti-tumor response in clinic. The present study was aimed to investigate the enhancing effect of DCs derived from human cord blood on T cells in killing tumor cells. Human cord blood mononuclear cells were isolated from human cord blood by density gradient centrifugation using lymphocyte separating medium, and cord blood mononuclear cells were obtained by adherence and cultured in a liquid culture system with GM-CSF and IL-4 for 15 days. Then the cells were analyzed for phenotypes of CD1a by indirect immunofluorescence. The capacity of DCs to initiate T cell-dependent anti-tumor immune responses was assayed by MTT kit. The ratios of DCs to tumor cells in experimental groups were 20:1, 50:1 and 100:1 respectively. The DCs were not added in control group. The results indicated that in the presence of GM-CSF and IL-4, the DCs with typical morphological features at days 15 were observed. At that time, (43.12 +/- 5.83)% CD1a(+) cells were obtained. In addition to these phenotypic properties, the DC of experimental groups could remarkably initiate T cell-dependent anti-tumor immune responses with different ratios compared with control group (P < 0.01), there were no significant difference of killing effects between 100:1 and 50:1 groups (P > 0.05), and killing effect of DC in 20:1 group was higher than that in 100:1 or 50:1 groups (P < 0.05). It is concluded that human cord blood mononuclear cells can serve as a better source of DC, which can promote the capacity to initiate T cell-dependent anti-tumor immune responses.
Apoptosis ; immunology ; Brain Neoplasms ; pathology ; Cell Differentiation ; Cells, Cultured ; Dendritic Cells ; cytology ; immunology ; Fetal Blood ; cytology ; Granulocyte-Macrophage Colony-Stimulating Factor ; pharmacology ; Humans ; Interleukin-4 ; pharmacology ; Leukocytes, Mononuclear ; cytology ; Neuroblastoma ; pathology ; Recombinant Proteins ; T-Lymphocytes ; immunology ; Tumor Cells, Cultured

Objective To summarize the diagnosis and treatment of localized malignant peritoneal mesothelioma(LMPM). Methods A total of 68 cases of LMPM were analyzed retrospectively,including 65 patients in the literature concerning LMPM published in Chinese medical journals be-fore October 2014 plus 3 cases of LMPM admitted in The First Hospital of China Medical University in the same period. Results Among the 68 cas-es,30 cases were male,38 cases were female,with a male to female ratio of 1:1.27. Mean age was 57.6 years. Major clinical manifestations includ-ed abdominal pain or discomfort(76.9%)and palpable abdominal masses(58.5%). Patients(41.7%)had the history of exposure to asbestos. Among the 48 cases(92.3%)that underwent CT examination,ascites was found in 16 cases,and hepatic metastasis was found in 11 cases. Most of the tumors were epithelial type(76.7%),with a mean diameter of 12.2 cm. The main therapeutic strategy was combination therapy of cytoreductive surgery with intraperitoneal hyperthemic chemotherapy. Conclusion LMPM is a rare malignant tumor that occurs predominantly in old people. Symptoms and imaging examinations are untypical. The diagnosis is dependent on pathological examination. Combining several laboratory tests could help the diagnosis. Combination therapy of cytoreductive surgery with intraperitoneal hyperthemic chemotherapy provides an adequate and efficient treatment for LMPM.

Objective To investigate management approach of integrated laparoscopic operating rooms based on the new surgical model. Methods Four integrated laparoscopie operating rooms were equipped and used in PLA General Hospital. The methods of management using these instruments were sunmmrized. Results During using integrated laparoscopic operating rooms, the experience including the preparation of instnunents, arrangement, managerial focus and training related approach were summarized. Conclusions Constructing of integrated laparoscopic operating rooms is the foundation of realization of the digital hospital.