1.Advances in gene chips for early gastric cancer
Shaohua DANG ; Hongliang JI ; Bo LI ; Xiangdong SUN ; Qingshan HANG
International Journal of Surgery 2011;38(12):845-847
Gastric cancer incidence is one of the most common malignancies in our country and is the second most common in the worldwide,clinic doctors always emphasize early diagnosis and treatment of gastric cancer patients,in order to reduce the mortality,however,most patients' condition often have been in the late fall and these patients were badly in efficacy.Looking for a new diagnosis way is a medical prddem,with molecular biology advance and gene chips was improved,it is possible for the early screening of gastric cancer.This assay aims to briefly analyse the role of gene chips in the research progress of early gastric cancer.
2.Modulatory effects of nebulized nitric oxide donor on inflammatory response in newborn piglets with acute respiratory distress syndrome
Shaohua WANG ; Bing HUANG ; Yongming WANG ; Hongxing DANG ; Feng XU ; Fengwu KUANG
Chinese Pediatric Emergency Medicine 2011;18(1):53-55
Objective To investigate modulatory effects of Neb-SNP on inflammatory response and to explore the protection mechanisms of Neb-SNP in newborn piglets with ARDS. Methods Forty-five neonatal swines were randomly divided into five groups:group A (controlled group ,n = 9), group B (physiological saline group,n =9),group C (Neb-SNP 1 mg/ml,0. 9% NaCl, n = 9), group D (Neb-SNP 5 mg/ml,0. 9% NaCl, n = 9) and group E (Neb-SNP 10 mg/ml,0. 9% NaCl, n = 9). The pathological changes and activity of NF-κB in the lung tissue ,TNF-α ,IL-10 and IL-12 concentrations in serum at 30 minutes,60 minutes and 120 minutes after aerosol inhalation were observed. Results Activity of NF-κB and serum concentrations of TNF-α and IL-12 in the Neb-SNP treated group were lower than group B(P <0. 05) ,and serum IL-l0 concentration was obviously higher in the Neb-SNP group(P <0. 05). With an increase of Neb-SNP concentration,activity of NF-κB and serum concentrations of TNF-α and IL-12 were obviously increased, while serum concentrations of IL-10 was increased in group D and group E than that of group C (P < 0. 05).Conclusion Inhalation of Neb-SNP reduced lung injury induced ARDS through lowering NF-κB activity and inhibiting expression of harmful inflammatory cytokines.
3.Advances in Zuckerkandl tubercle
Qingshan LIANG ; Hongliang JI ; Bo LI ; Xiangdong SUN ; Shaohua DANG ; Jing FENG
International Journal of Surgery 2011;38(1):53-56
Zuckerkandl tubercle is the extension of thyriod gland. For the past few years, more and more surgeons and anatomists have become interested in it. Clinically, surgeons usually rely on specified anatomical landmarks to avoid injuries to the recurrent laryngeal nerve, including the laryngeal branches and the superior parathyroid in thyroid surgery, such as the bottom corner of the thyroid cartilage, the inferior thyroid artery, lower pole of thyroid, tracheoesophageal groove, suspensory ligament of thyroid gland and so on. As the specified landmarks, they have several common characteristics:on the one hand, their location should be constant; on the other hand, they should be easy to observe and touch, meanwhile convenient and practical.As a new anatomical landmark, Zuckerkandl tubercle is in accordance with the above characteristics and prevalent in the population. Therefore, Zuckerkandl tubercle could become an important landmark to identify the the recurrent laryngeal nerve, including the laryngeal branches and the superior parathyroid in thyroid surgery. This essay aims to briefly analyze the role of Zuckerkandl tubercle in thyroid surgery.
4.Local application of slow-release immunosuppressant in islet cell transplantation
Qingshan LIANG ; Hongliang JI ; Qingzhu KONG ; Xiangdong SUN ; Bo LI ; Jing FENG ; Shaohua DANG
International Journal of Surgery 2011;38(5):307-310,封3
Objective To explore the local application of immunosuppressant in improving the survival rate of the transplanted islet cells and systemic side effects.Methods The streptozocin of 200 ms/kg was injected into the abdominal cavity of the Wistar rats,the blood sugar was tested after 48,and 72 hours,and the rats with two consecutive measurements ≥20 mol/L were taken as the experimental animal model.The dose of pancreatic islet cells transplanted into the abdominal cavity was 8 000 IE,/kg,and that of cyclosporine dosage was 1.5 mg/(100 g·d).The pancreatic islet cells were divided into three groups:(1)systemic immunosuppressive agents through stomach lavage with the intraperitoneal injection of microencapsulated islet cells;(2)pure intraperitoneal injection of microencapsulated islet cells;(3)intraperitoneal injection microencapsulated activated carbon particles loaded with immunosuppressants,and mieroencapsulated islet cells.Changes of blood glucose and pathological in rats after transplantation were detected.Results The blood glucose of group 3 and group 1 showed no significant difference(P>0.05),as well as compared with group 2(P>0.05).But the local application of immune agents could prolong the effective time of the islet cells and attenuate the fibrotic extent of the surrounding islets when compared with the control group,the C peptide level in applicating immunosuppressive agents group was significantly hisher in the immunosuppressive group than the pure transplantation group.ConclusionCompared with the systemic immune suppression via stomach lavage,local application of slow-release immunosuppressive agents showed the same effects of activated carbon particles,with a prolonged the effective time of islet cell and reduced topical side effects in the latter.