Earthquakes ; Humans ; Rescue Work ; Wounds and Injuries ; surgery

Objective:To examine the soft tissue changes of early skeletal Class III malocclusion patients after maxillary protraction treatment. Methods:60 skeletal anterior crossbite patients, 27 males, 33 females in the late mixed dentition were selected. The age ranged from 8 to 11 years. Mean age was 9.3 years. The patients were divided into treatment group and control group. Average treatment time was 12.1 months. Pre- and post-treatment lateral cephalograms of both groups were traced and analyzed. Difference between pre- and post-treatment was analyzed with paired t-tests. Results:After treatment, Ns-Sn-Pos, Ns-Prn-Pos, Sn-S-Si and Cm-Sn-UL decreased significantly,while Sn-Ns-Si and UL-E increased significantly. No significant change was found in S-Ns-Sn and LL-E. Conclusion:Soft tissue profiles are significantly improved by maxillary protraction treatment in the late mixed dentition. The concave profiles were changed to straight or nearly normal profiles. The relationship among nose, upper lip, lower lip and chin become harmonious. The curve of the lips tends to be smooth and harmonious.

Study on stability of Caitong Tablets with the constant temperature accelerated test has been carried out. Using the flavone component in Caitong Tablets as an index,their content was determined. It was predetermined that the shelf life was 4. 11 years.

Objective To investigate the genuineness of Amomum Villosum Lour.at DNA molecular level.Methods Forty -nine samples from 3different habitats(Chunwan,Panlong,Yunnan)were analyzed by RAPD.The data of amp li-fied bands were analyzed by the softw are Popgene 3.2and Phylip.Results The molecular phylogenetic tree of Amomum Villosum Lour.from 3habitats indic ated that the Chunwan' s had a close consanguinity with the Panlong' s and the consan-guinity of the Yunnan' s was distant to the Chunwan' s and the Panlong' s.Conclusion This provide evidence of the gen-uineness of A.Villosum Lour.at molecular level.

According to the programming characteristics under the SOC embedded environment,the dynamic auto-adapted bit stream technology,the intelligent interception technology,and the tele-control technology are utilized to realize the real time network communication of medical video with a variable bit stream from 1M to 4M as well as the tele-control of multiple communication protocols such as TCP,UDP and Multicast.

Objective To discuss the clinical significant of detecting cytoplasm phospholipase A2 alpha (cPLA2α)in patients with chronic obstructive pulmonary disease (COPD).Methods Selected treated 90 cases of patients with COPD.According to the COPD severity classification standard,they were divided into mild group of 30 cases,moderate group of 25 cases and severe group of 35 cases.In the same period of physical examination,90 cases of normal lung function healthy were control group.Used Enzyme linked immunosorbent test (ELISA)to detect cPLA2αlevel of these groups.At the same time,detected cPLA2αexpression of these groups by RT-PCR.Results cPLA2αlevel in serum of mild group was (0.039 2±0.005 1)pg/ml,gene expression was (0.68±0.01),in moderate group (0.049 8±0.007 4)pg/ml and (0.92±0.02),in severe group (0.055 4±0.008 1)and (1.35±0.02).and in Healthy controls group (0.010 2±0.006 6)pg/ml and (0.11±0.01).There were significant differences among four groups (t = 3.013 ~ 5.817,5.039 ~ 11.667,P < 0.05).Conclusion Detection of blood cPLA2αcan indicate COPD severity,and cPLA2α is the new molecular targets of diagnosis,treatment and classifica-tion COPD.

Objective To investigate the effects of panax notoginseng saponins(PNS) on the expression of IL-10 and TNF-α in the brain after focal cerebral ischemia-reperfusion injury in rats,and the mechanism was explored.Methods 30 male adult Sprague-Dawley rats were randomly divided into sham-operation group,ischemia-reperfusion group and PNS treatment group,10 rats in each group.The middle cerebral artery occlusion(MCAO) was established with ischemia-reperfusion group.The rats received continuous gastric lavage for 4 weeks,who were observed for 3 days and then killed to the detect the expression of IL-10 and TNF-αin ischemic region by ELISA,immunohistochemistry and RT-PCR.The behavioral ability score in rats were tested.Results Compared with the sham-operation group and ischemia-reperfusion group,the expression of IL-10 was increased,while the expression of TNF-α was decreased significantly in PNS treatment group,behavior score of PNS treatment group increased significantly than that of ischemia-reperfusion group.Conclusion The panax notoginseng saponins can reduce the neurons injury after focal cerebral ischemia-reperfusion injury in rats partly by regulating the expression of IL-10 and TNF-α in the brain.

A large nunber of studies show that aspirin and other non-steroid anti-inflammatory drugs (NSAID) have chemopreventive effects on several cancer type s,and more specifically in colorectal cancer.Aspirin can help prevent colon cancer,which has a specific advantage of drug prophylaxis.Studies found that aspirin play different roles on high-risk,moderate-risk and low-risk populations in time and dose.There is limited evidence about the influence on incidence of adenoma among the general risk populations.

Objective To evaluate the therapeutic effects of bi-level positive airway pressure on acute left heart failure. Methods Thirty patients with acute left heart failure received combined conventional therapy and bilevel positive airway pressure, and were compared with 30 patients with acute left heart failure receiving traditional treatment as controls. The changes in the power of hydrogen, partial pressure of oxygen in artery, pulse oxygen saturation,partial pressure of carbondioxide in artery,buffuer excess,blood pressure,heart rate,and breathing frequency,and clinical symptom were compared between the two groups. Results Compared with control group,the blood pressure,heart rate, breathing frequency decreased significantly( P＜0. 05 ) ;pulse oxygen saturation increased significantly (P＜0. 05 ) ; the power of hydrogen, partial pressure of oxygen in artery, partial pressure of carbondioxide in artery, and buffuer excess were improved more significantly ( P＜0. 05 ) ; the marked response rate and the total effective rate increased significantly(P＜0. 05). Conclusion The combined conventional therapy and bi-level positive airway pressure has a good efficacy in the patients with acute left heart failure.