Based on a self-made questionnaire,this research is carried on to analyze the consumption psychology of mobile phone text among 400 university students of different grades,and finally discovered:(1)Mobile phone text has become a universally popular way of social intercourse among modern university students,and been wider used inside intimate communities.Its convenience and low expense are primary reasons for its widespread usage among university students.(2) The consumption of mobile phone text among university students displays remarkable differences between different genders and grades.(3) Some students formed certain psychological and behavioral problems during the usage of mobile phone text including mobile phone dependence and auditory hallucinations,and so on.

Aim To investigate the reversal effect of PARP-1 inhibitor PJ34 on cisplatin-resistance in hu-man lung adenocarcinoma A549/DDP cells and the mechanism. Methods A549/DDP cells were treated with PJ34 alone or combined with cisplatin. The effects of proliferation inhibition were assayed by MTT meth-
od. The apoptosis ratios of cells were analyzed by flow cytometry. The protein expression of PARP-1 and LRP, GST-π were measured by Western blot assay. Results PJ34 could inhibit the proliferation of A549/DDP cells alone. The non-toxic dose of PJ34 could signifi-cantly resensitize A 5 4 9/ DDP cells to cisplatin , induce
apoptotic,lower the expression of PARP-1 and resist-ance-associated protein LRP and GST-π. Conclusion PJ34 could inhibit the proliferation of A549/DDP cells and resensitize A549/DDP cells,partially reverse cisplatin-resistance in A549/DDP cells, with a proba-
ble mechanism relating to increased apoptotic rate,and lowered expression of PARP-1 and resistance-associat-ed protein LRP and GST-π.

Uveitis is a kind of inflammatory disease affected in ocular posterior segment.Uveitis sustains a long duration and causes a significant damage of visual function.It often leads to serious complications,such as cystoid macular edema (CME),cataract,glaucoma,retinal detachment and choroidal neovascularization (CNV).In the pathological process of uveitis,inflammatory factors promote the release of vascular endothelial growth factor (VEGF) through a variety of pathways.It has been verified that VEGF level is elevated in vitreous in the patients with uveiticinduced CME.Intravitreal injection of anti-VEGF drugs,including ranibizumab and bevacizumab,can improve the visual acuity in most patients with noninfectious uveitic-induced CME and CNV.However,intravitreously repeated injections of anti-VEGF drugs may be required in some patients.Intraocular injection of anti-VEGF drugs is an optional and effective way for those with persist macular edema and not being suitable for the use of corticosteroid or immunosuppressive therapy.However,anti-VEGF drugs may affect the efficacy of corticosteroid.Therefore,more clinical and basic researches are still needed.The status and progresses in the use of anti-VEGF drugs for uveitisinduced CME and CNV were reviewed.

BACKGROUND: After tissue-engineering products transplantation, angiogenesis played an important role in the function restoring of defective organs. The natural tissue-engineering materials had a wide application in tissue engineering due to its favorable biocompatibility and degradability, at the same time its pro-angiogenic function enhanced the achievement ratio of tissue-engineering products transplantation. Therefore, they attract much attention during recent years. OBJECTIVE: To summarize the research status of incubating induced angiogenesis of tissue-engineered natural scaffold, so as to give some theoretical basis for further study on clinical application of natural tissue engineering materials. METHODS: Relevant literatures in PubMed and Springerlink published between January1995 and June 2009 were searched by compute with the key words of "tissue-engineering products, natural materials" in English. While relevant Chinese articles in CKNI published between January1999 and June 2007 were also searched with the key words of "tissue-engineering natural materials, collagen, chitosan, fibrin" in Chinese. After primary selection, inclusive articles were those about study and experimental study of induced angiogenesis of tissue-engineered natural scaffold. Exclusive criteria: repetitive and obsolescent articles. A total 35 literatures were finally analyzed in accordance with the criteria. RESULTS AND CONCLUSION: The natural tissue engineering materials were synthesized by macromolecules out of normal tissue, whose multiple bioinformation provided signal for cells and benefited for cellular adhesion and maintenance. Collagen protein, fiber gel protein, and chitosan summarized in this study were beneficial for inducing angiogenesis but limited to mechanical characteristics. Therefore, to construct natural materials inducing angiogenesisis is prospect.

Objective To investigate the protective effects of different concentrations of propofol on thelungs apainst acute injury induced by lipopolysaccharide (us) in rats.Methods Twenty-four male Wistar ratsweighing 150-250g were randomly divided into 4 groups with 6 animals in each group : (1) control group receivedonly normal saline; (2) LPS group received LPS 5 mg?kg~(-1)i. v.; (3) propofol group 1 received a bolus 5 mg?kg~(-1) after LPS followed by propofol infusion at 5 mg?kg~(-1) ; (4) propofol group Ⅱ received a bolus of propofol 10mg.kg~(-1) after LPS followed by propofol infusion 10 mg?kg~(-1). Blood samples were obtained from femoralartery for determintiion of serum concentrations of TNF-?, IL-? and IL-10 at 1, 2, 3, 4 h after LPS injection. Theanimals were then killed by exsanguination. The lungs were removed. Left lung was lavaged and the broncho-alveolar lavage fluid (BALF) was collected for determination of its neutrophil count, and protein, TNF-?, IL-I?and IL-10 levels. Right lung was used for measurement of wet / dry lung weight ratio. Results In LPS group thewet/dry lung weight ratio, BALF neutrophil counts and protein contents and BALF and serum TNF-?, Ib-I? andIL-10 levels were significantly increased compared with control group (P

Objective To explore clinical efficacy of local random flap in reconstruction of facial skin and softtissue defects caused by lesions resection and injury.Methods Forty-six cases with facial skin and soft-tissue defects were cured by constructing and transplanting different local random flap that is designed according to parts,shapes and sizes of defect between July of 2008 and June of 2013.Results All the cases obtained satisfactory effects for full survivorship of flap,one-stage healing of wound,tiny scar and pigmentation,and good appearance by following up from 3 months to 6 months after operation.Conclusions Using local random flap in repair of facial skin defect could get satisfactoried functional and aesthetic efficacy,and it is worth being applicatied in the clinic.

Objective To investigate the effects of thiopental on expression of nuclear factor kappa B (NF-?B) and content of TNF-? and IL-1? in the lungs induced by lipopolysaccharide (LPS) .Methods Twenty-four male Kunming mice weighing 15-25 g were randomly divided into 4 groups (n = 6 each) : I control group received intraperitoneal (i.p.) normal saline (NS) 1 ml?kg-1 ; Ⅱ LPS group received i.p. LPS 5 mg?kg-1 ; Ⅲ LPS + thiopental (TH) received intrapentoneal TH 60 mg?kg-1 20 min after i.p. LPS 5 mg?kg-1 and Ⅳ TH group received i.p. TH 60 mg?kg-1 alone. The animals were bled to death at 3 h after LPS administration. The lungs were immediately removed for determination of expression of NF-?B p65 (Western blot) and TNF-? and IL-1? content (ELISA) in the lung. Results The expression of NF-?B p65 was significantly increased and the level of TNF-? and IL-1? in the lungs were significantly increased after LPS stimulation as compared with control group ( P

Objective To evaluate hernia repair with Onlay (premuscular positioning of the prosthesis) for the treatment of parastomal hernia.Methods In this study 45 patients with parastomal hernia were treated with a tension-free manner of hernia repair in situ by Onlay using prolene mesh between February 2006 and April 2012.There were 24 males and 21 female cases,including 6 recurrent parastomal hernia cases.The average age was (49 ±8) years ranging from 43 to 80.The parastomal defect ranged from 4 cm to 9 cm.Results All operations were successful.There was no hospital death or severe postoperative complications.The mean operating time was (109 ± 23) min (96-148),and the average time of pulling out the gastrointestinal decompression tube was (2.0 ± 2.0) day (12 h-3 d) and the drainage tube was removed after (5.0 ± 2.0) days (4-9 d).The mean postoperative hospitalization was (11 ± 3) days (9-16 d).42 cases achieved primary healing.The serofluid swelling in 7 cases was cured by puncturing and pressing the incision.41 cases were followed-up from 8 to 48 months,and 4 patients suffered from hernia recurrence respestively after 3 months,4 months,4.5 months and 7 months.One recurrent case was healed by conservative therapy and the other three were healed by reoperation.Conclusions Hernia repair in situ with Onlay method for parastomal hernia with prolene mesh was a safe and effective.

Objective To investigate the effect of different pressures of hyperbaric oxygen (HBO) treatment on neuropathic pain (NP) in rats.Methods Twenty-four healthy male Sprague-Dawley rats were randomly divided into 4 groups (n =6 each):sham operation group (group S),NP group,treatment with HBO at 2.0 atmosphere absolute group (group HBO2.0) and treatment with HBO at 2.5 atmosphere absolute group (group HBO2.5).The animals were anesthetized with intraperitoneal 5 ％ chloral hydrate 300 mg/kg.NP was induced by chronic constrictive injury.The left sciatic nerve was exposed and 4 loose ligatures were placed on the sciatic nerve at 1-mm intervals with 4-0 silk thread.After the rats were placed in the HBO chamber,the pressure was increased at a rate of 10 kPa/min until the desired pressure was reached,and then the pressure was maintained at this level for 60 min.The pressure was then decreased at a rate of 10 kPa/min until the normal pressure was reached.HBO treatment was performed once a day for 5 consecutive days starting from 1st day after operation in groups HBO2.0 and HBO2.5.While the rats were only placed in the HBO chamber and stayed for 100 min in groups S and NP.The mechanical paw withdrawal threshold (MWT) and thermal paw withdrawal latency (TWL) were measured at 0,1and 2 h after leaving the HBO chamber (T0.2).Results Compared with group S,MWT was significantly decreased and TWL was shortened in group NP (P ＜ 0.05).Compared with group NP,MWT was significantly increased and TWL prolonged at T1 during the treatment (P ＜ 0.05),while no significant change was found in MWT and TWL at T2 during the treatment in groups HBO2.0 and HBO2.5 (P ＞ 0.05).There was no significant difference in MWT and TWL at each time point during the treatment between groups HBO2.0 and HBO2.5 (P ＞ 0.05).Conclusion Treatment with different pressures of HBO can reduce NP in rats,but the change in pressure dose not affect the analgesic efficacy.

Objective To investigate radiation-induced alternations of phospholipids in epithelial cells,and to provide experimental evidence for understanding the mechanism of radiation-induced intestinal injury.Methods The intestinal epithelial cells(IEC-6)in rats were divided into three groups:normal control group,8 Gy X-ray irradiation group and 12 Gy X-ray irradiation group.Phospholipids were extracted at 6 h or 24 h after radiation and then measured by high-performance liquid chromatography and mass spectrometry(HPLC-MS).Results At 6 h after radiation,the phospholipids in 8 Gy irradiation group didn't vary significantly,while those in 12 Gy irradiation group changed.The PG,PI and Lyso PC were significantly up-regulated(F=5.37,9.60,9.88,P＜0.05).However,at 24 h after radiation,many PE and PG species in both irradiation groups declined(F=5.15-99.77,P＜0.05)and SM species increased in 12 Gy irradiation group(F=4.35-7.92,P＜0.05).Conclusions The ionizing radiation could disorder phospholipid metabolism in IEC-6 cells with a dose-dependent manner.