Objective To investigate the effect of mild hypothermia therapy on plasma tissue-type plasminogen activator (tPA)/plasminogen activator inhibitor-1 (PAI-1) in patients with massive cerebral infarction (MCI).Methods The patients with MCI were randomly divided into the conventional therapy group and the mild hypothermia therapy group.On the basis of conventional therapy,the latter received local mild hypothermia therapy for 48 hours immediately after admission.Enzyme-linked immunosorbent assay was used to detect plasma tPA and PAI-1 at admission and at 48 hours after mild hypothermia,respectively.The general information and the tPA and PAI-1 levels before and after treatment in both groups were compared.Results A total of 46 patients with MCI were included.There were 26 and 20 patients in the conventional therapy group and the mild hypothermia therapy group,respectively.There were no significant differences in the general information,the tPA and PAI-1 levels before and after treatment in both groups,and the levels of plasma tPA (80.98 ± 34.64 pg/mL vs.110.1 ± 32.7 pg/mL; t =3.462,P =0.013) and PAI-1 (145.40 ± 45.29 pg/mL vs.174.2 ± 38.0 pg/mL; t =4.854,P =0.034) at 48 hours of mild hypothermia therapy in the mild hypothermia therapy group were significantly lower than those in the conventional therapy group.Conclusions Mild hypothermia therapy may decrease the plasma tPA and PAI-1 levels in patients with MCI,and it may be associated with the neuroprotective effect of hypothermia therapy.

The imbalance in the fibrinolytic system participates in the pathophysic-logical processes of ischemic stroke. Most researchers consider that the fibrinolytic activity decreases in patients with ischemic stroke, while others believe that it increases. Mild hypothermia is a therapeutic approach with great potential and plays the neuroprotective effect through a variety of mechanisms. Animal experiments have demonstrated that the treatment with mild hypothermia may increase the plasma fibrinolytic activity and decrease the expression of local plasminogen activator in ischemic area. Howere, the related clinical research studies are few, and most of them are limited in the safty and collaborative research of mild hypothermia combined with other treatment therapies.

The war injuries with seawater immersion has become one of the most common in the naval battle. These injuries are quite different on characteristics from simple war injuries because of the low temperature, high osmotic pressure and bring a large number of bacterial of seawater. The characteristics and early treatment of war injuries with seawater immersion were introduced on research results of army medicine order task. The significance of making a thorough investigation and study was discussed.

The proto oncogene c-Myc is expressed in many kinds of organs, and its dysfunction is closely related to the occurrence and prognosis of lymphoma, prostatic cancer, breast cancer and pancreatic cancer.With a large number of studies focus on the expression and function of c-Myc in tumor, the treatment of tumor by targeting c-Myc has made a wealth of progress.

Objective To discuss the influence of blood exchange transfusions on hemato- microenvironment of neonates with hyperbilirubinemian.Methods Blood exchange transfusion was performed in 35 neonates.Mean transfusion volume was (136.9±27.4) ml/kg.The speed of blood exchange transfusion was 92 ml/(kg·h).Blood bilirubin,blood electrolyte,blood routine and blood sugar levels were measured before,during and after the transfusion.Results Serum total bilirubin (TB) decreased by 53.78% after blood exchange,but there was no change in Na~+,Cl~-,and blood sugar (P＞0.05),and K~+ was remarkably decreased from (4.45±2.40)mmol/L to (3.87±0.52)mmol/L (t=21.979,P＜0.05).TB,Hb,PLT,WBC,Ca~(2+) were decreased[TB from(511.52±80.21) μmol/L to (236.41±66.54) μmol/L;Hb from (145.20±11.70) g/L to (128.66±2.54) g/L;PLT from (207.84±70.67)×10~9/L to (134.86±48.61)×10~9/L;WBC from (16.90±10.56)×10~9/L to (8.94±7.44)×10~9/L,and Ca~(2+) from (1.26±0.32) mmol/L to (0.99±0.22) mmol/L,P＜0.05 or ＜0.01].Conclusions Blood exchange transfusion can not influence Na~+,Cl~-,and blood sugar,but has remarkable effect on total bilirubin,Ca~(2+),Hb,K~+,PLT,and WBC.

Objective To investigate the action mechanism of blood-stage treatment that affects psoriasis vulgaris using observation of the Th17/Treg expression.Methods A total of 32 patients ( blood heat group,n =17 ; blood stasis group,n =15) and 15 healthy people ( control group,n =15 ) were observed.The frequencies of Th17 and Treg in peripheral blood were detected by flow cytometric analysis in patients before and after treated by heat-clearing and blood-cooling decoction,qi-enriching and blood-activating decoction.Results The ratio of Th17/Treg in peripheral blood [ blood heat group (4.21 ± 0.52 )％ ;blood stasis group( 3.32 ± 0.43 )％ ] was significantly increased in patients compared with controls [ ( 1.79 ±0.18)％ ] ( P ＜0.01 ).After herbal treatment,the ratio of Th17/Treg expression in the blood heat group [ ( 2.41 ± 0.22 ) ％ ] and in blood stasis group [ ( 2.02 ± 0.12 ) ％ ] was significantly decreased ( P ＜ 0.05 ),respectively.Conclusions Blood-stage treatment works well on Th17/Treg expression in patients with psoriasis vulgaris.

Objective To discuss the clinical characteristics and therapeutic strategy of contrecoup contusion and laceration in frontal lobe. Methods 48 cases with contrecoup contusion and laceration in frontal lobe were analysed retrospectively with their imaging feature. Results In accordance with the GOS,36 cases survived well, 8 suffered from moderate disability. One keept in persistent vegetative state and one was dead. Conclusion Contrecoup contusion and laceration in frontal lobe merged with occipital extradural hematoma and diffuse brain swelling. Early diagnosis and treatment for the delayed occipital extradural hematoma, and standard large trauma craniotomy in treatment of heavy contrecoup contusion and laceration with diffuse brain swelling in frontal lobe were the key measures to improve the rate of success rescue.

Objective To study the relationship between the expression of nm23- H1 gene product and early distant metastases in nasopharyngeal carcinoma (NPC). Methods The S- P immunohistochemical method was used to detect the expression of nm23- H1 in 95 cases of NPC. Results The positive rate of nm23- H1 was 47.4 % (45/95). The positive rate of nm23- H1 in early distant metastases group (26.7 %) was much lower than those without distant metastases group (60.0 %) (P

Objective To assess the genetic toxicity and effects of cooking oil fume on oxidation-antioxidation level, immunity function of the workers occupationally exposed to cooking oil fume. Methods 108 subjects engaged in catering trade in Dongshan district of Guangzhou city were enrolled into this study by questionnaire investigation, serum MDA, SOD, activity of Lysozyme, micronucleus formation of periphery lymphocytes, blood lipids, blood routine indexes and vital capacity were determined. Results Compared with the control, serum MDA, micronucleus formation of periphery lymphocytes, CHOL, apoB LDL,WBC and mononuclear cells in the exposed group were significantly higher and a positive correlation was found between the levels of serum MDA, CHOL, apob, LDL, micronucleus formation of periphery lymphocyfes and length of service. Conclusion Cooking oil fume may injure oxidation-antioxidation system and have genetic toxity to human. The effect on lung function needs further study.

Objective To evaluate the mortality and survival time of war injuries, followed by seawater immersion. Methods Animal models of injuries including open chest injury, open abdominal injury, burn, hemorrhagic shock, were reproduced. The animals were divided into two groups: control group consisting simple injury without seawater immersion, and seawater immersion group consisting similar injuries followed by seawater immersion. The survival time of animals of the two groups were recorded. Results The mean survival time of the animals with open chest injury and open abdominal injury followed by seawater immersion was 45 minutes and 162 minutes, respectively. The mortality of 30% Ⅱ degree burn was 50% after seawater immersion for 4 hours, while it was 6% without seawater immersion. The mortality of moderate hemorrhagic shock with four-hour with seawater immersion was 90%, while all the animals survived without seawater immersion. Conclusions The experimental study showed that the mortality rate was significantly raised and the survival time significantly shortened when open wounds were exposed to seawater for a certain period of time. Hypertonicity of the seawater with high sodium content, and low temperature of seawater might play important roles in producing various pathophysiological changes which contributed to early death of the animals.