Exercise and green tea extract stimulate fat oxidation and prevent obesity in mice

INTRODUCTION/PURPOSE: The purpose of the present study was to explore the combined effects of dietary supplementation with green tea extract (GTE) and regular exercise on the development of obesity in high fat-fed C57BL/6J mice. METHODS: Weight and age-matched male mice were divided into 5 groups of 10 mice each. Groups were treated as follows: a low-fat diet and not exercised (LF), a high-fat diet and not exercised (HF), a high-fat diet supplemented with GTE and not exercised (GTE-HF), a high-fat diet and exercised regularly (EX-HF), or a high-fat diet supplemented with GTE and exercised regularly (GTEEX-HF). The exercise modality was treadmill running. RESULTS: After 15 wk, GTE alone and regular exercise alone caused a 47 and 24% reduction in body weight gain induced by the high-fat diet, respectively, and when combined, resulted in an 89% reduction. In visceral fat accumulation, GTE alone, exercise alone, and their combination caused a 58, 37, and 87% reduction, respectively. Indirect calorimetry showed that the GTEEX-HF group had the highest energy expenditure and fat utilization in the sedentary condition after 4 wk. Furthermore, the GTEEX-HF group utilized more fat than the EX-HF group during exercise. GTE supplementation increased hepatic fatty acid oxidation both in the exercised and nonexercised groups. In addition, when combined with regular exercise, GTE supplementation also stimulated skeletal muscle fatty acid oxidation. CONCLUSION: In conclusion, dietary GTE and regular exercise, if combined, stimulate fat catabolism not only in the liver but also in skeletal muscle, and attenuate high-fat diet-induced obesity more effectively than each alone in C57BL/6J mice.     

Isolated heart responsiveness to beta-simulation after exercise training in obesity

PURPOSE: Exercise training results in many health benefits, but few studies have focused on whether exercise training might attenuate the adverse effects of obesity on heart function. Therefore, the purpose of this study was to determine whether exercise training attenuated obesity-related decreases in systolic contractile function in response to beta-adrenergic stimulation, using the rabbit model of obesity. METHODS: Female New Zealand white rabbits were divided into four groups: lean sedentary, lean exercise-trained, obese sedentary, and obese exercise-trained. Obese rabbits were fed an ad libitum high-fat diet. Exercise-trained rabbits underwent a 12-wk progressive treadmill exercise training protocol. After 12 wk, the Langendorff isolated heart method was used to study developed pressure, +dP/dt, and -dP/dt responses to increasing concentrations of isoproterenol (10(-9)--3 x 10(-7) M). Log concentration-response data were fit to a sigmoidal function, using a four-parameter (minimum, maximum, EC(50), slope) logistic equation. Groups were compared using a 2 x 2 analysis of variance. RESULTS: Although obesity shifted the concentration-response curves for developed pressure, +dP/dt, and -dP/dt to the right as indicated by an increase in the EC(50) (P < or = 0.05), there was no effect of exercise training on any of the logistic regression parameters. EC(50) (log M) values for combined lean versus combined obese were -8.50 +/- 0.7 vs -8.20 +/- 0.09 (developed pressure), -8.04 +/- 0.06 vs -7.68 +/- 0.07 (+dP/dt), and -8.17 +/- 0.07 vs -7.91 +/- 0.09 (-dP/dt). CONCLUSION: These results confirm the negative effect of obesity on responsiveness of the isolated heart to beta-adrenergic stimulation but indicate that exercise training does not significantly attenuate obesity-related changes.     

Effects of Carbon Photon Irradiation on Wound Healing in a Rat Full-thickness Wound Model

Objective: The present study was undertaken to examine the effect of carbon photon on healing of skin wounds in a rat model.Methods: One full-thickness skin wounds were created on the back of Wistar rats and irradiated by using carbon photon at peak wavelength 662 nm with 54 J/cm2,compared with injured sham-irradiation control rats. The animals were then killed after various intervals of wounding,and the wounded skin tissues were evaluated by histological test.. The wound re-epithelialization and healing qualification were examined by histological analysis.Cell proliferation was examined by Brd Uimmunohis through chemical staining.Results: The irradiation of carbon photon significantly accelerated wound healing rate compared with the control group at 7,14 and 21 days after wounding. At the histological level,the significant increasement in the degree of re-epithelialization,the content of collagen and the density of micro-vessel were observed in the wound sites in carbon photon treated group at 7,14 and21 days after wounding. Moreover,treatment with carbon photon increased Brd U-labeled cells at the edge of the wound sites after wounding at the indicated time.Conclusion: The results of the experiment showed that carbon photon therapy can accelerate wound healing and improve wound healing quality by stimulating cell proliferation.     

蜕皮甾酮乳膏对伤口愈合速度及毛细血管密度的影响

目的 研究蜕皮甾酮乳膏对实验性兔创伤模型促进伤口愈合作用的疗效观察,从而为蜕皮甾酮乳膏促愈作用找到证据及其机制.方法 先制备好蜕皮甾酮乳膏,而后将32只体重相近的新西兰兔制备成全皮层缺损的创伤动物模型,每只兔3个背部创面,分别敷以空白乳膏基质、蜕皮甾酮乳膏及云南白药创可贴.其中8只兔分别于造模后4、8、12天拍摄愈合后的创面,统计其面积,同时计算出各个创面的伤口愈合率;另外24只兔分3批于造模后4、8、12天利用微循环观察和分析系统检测创面毛细血管密度.结果 伤口愈合率的统计学分析表明:蜕皮甾酮乳膏有明显的促进伤口愈合的作用(P<0.01),疗效与云南白药相近(P＞0.05);毛细血管密度的统计学分析表明:蜕皮甾酮乳膏组创面与其他两组相比,其毛细血管生成密度较大(P<0.01);病理观察:蜕皮甾酮乳膏组上皮细胞、内皮细胞及成纤维细胞增生较多.结论 蜕皮甾酮乳膏对实验性兔创伤缺损模型有明显促愈作用,为临床促愈用药的筛选提供了新思路.     

猪自体脂肪移植修复皮肤损伤的初步研究

目的　探讨脂肪对猪皮肤损伤的促愈作用 ,为临床皮肤损伤修复提供新的治疗方法。方法　 6只小型香猪背部中线两侧各制备 4个 2 5cm×2 5cm的全层皮肤缺损创面 ,将创面随机分为 4组 ,即空白对照组、脂肪治疗组、碱性成纤维生长因子 (bFGF)治疗组和表皮生长因子(EGF)治疗组 (每组各 12个创面 )。分别于伤后 3、7、14、2 1天采用大体观察和组织学方法动态观察创面愈合情况。结果　伤后 3天和 7天 ,脂肪治疗组肉芽组织形成丰富 ,血管密度大 ,伤腔容积小于其余各组 (P <0 0 1) ;伤后 7天和 14天 ,各组创面逐渐缩小 ,脂肪治疗组创面面积明显小于其余各组(P <0 0 1) ,并且再上皮化的新生表皮较其余各组为厚。结论　自体脂肪移植到局部皮肤创面后能明显促进创面愈合速度 ,提高愈合质量     

Meal-induced thermogenesis following exercise training in the rat

The effects of treadmill exercise on the thermic effect of a meal were studied in male Sprague-Dawley rats (370 to 400 g, 4 to 5 months of age). Rats were exercised for 60 min, 5 d.wk-1 for 8 to 10 wk, at a speed of 27 m.min-1 and with a grade of 8%. Sedentary (N = 9) and exercised (N = 8) rats were given food and water ad libitum. Oxygen consumption was measured at rest and following the ingestion of a meal consisting of 81% carbohydrate, 9% protein, and 10% fat (by calories). In those animals that were exercised, oxygen consumption measurements were performed 24 h after the completion of an exercise bout. Although all animals gained weight during the experimental period, the exercised group gained significantly less than did the sedentary rats. Resting oxygen consumption [ml/(min X g body mass.67)] was not significantly different between the exercised and sedentary rats. The ingestion of the high carbohydrate meal significantly increased mass-independent oxygen consumption above resting values in both groups; the values for the exercised rats were greater than those for the sedentary rats. However, there were no differences between the exercised and sedentary rats in meal-induced oxygen consumption when the data were expressed as a function of lean body mass [ml/(min X g lean body mass)] or as mass-independent lean body mass [ml/(min X g lean body mass.67)]. These data suggest that exercise-trained rats have increased diet-induced thermogenesis and may be one factor in the loss of weight sometimes found in response to exercise.     

Gender differences in viral infection after repeated exercise stress

Fatiguing exercise can increase susceptibility to respiratory infection after intranasal inoculation with herpes simplex virus-1 (HSV-1) in male mice. Although gender differences in susceptibility to certain pathogens do exist, it is unknown whether female mice will respond differently than males in response to strenuous exercise and HSV-1 infection. PURPOSE: To test the effects of gender on susceptibility to HSV-1 respiratory infection after repeated exhaustive exercise. METHODS: Male (N = 86) and female (N = 89) CD-1 mice (approximately 60 d old) were randomly assigned to exercise (Ex) or control (C) groups. Exercise consisted of 3 d of treadmill running at 36 m x min(-1) at 8% grade until volitional fatigue (135 +/- 5min). Fifteen minutes after the last bout of exercise, Ex and C mice were inoculated intranasally with a standard dose (LD30) of HSV-1. Mice were monitored for 21 d for morbidity (time to sickness and symptom severity) and mortality. RESULTS: Run time to fatigue was significantly longer in females than males (P = 0.027). Significant gender differences in susceptibility to infection were found after exercise stress. In males, exercise stress resulted in increased morbidity (66%, P < 0.05) and mortality (30%, P < 0.05) whereas in females, exercise stress only resulted in increased morbidity (66%, P < 0.05). CONCLUSION: Results suggest that although males and females have similar morbidity rates after infection and exercise stress, females recover to a greater extent and are ultimately better protected from death.     

负载VEGF 、bFGF的聚乳酸-羟基乙酸纳米微囊复合体对放射性损伤创面愈合的作用

 目的 探讨负载VEGF、bFGF的聚乳酸-羟基乙酸共聚物(poly lactic-co-glycolic acid,PLGA)纳米微囊复合体对放射性损伤创面愈合的影响。方法 以PLGA为支架联合应用bFGF、VEGF构建纳米微囊,作用于小鼠放射性损伤创面作为实验组,单纯应用PLGA为支架,未用bFGF、VEGF的作为对照组,观察两组创面愈合率、创面的病理改变;于伤后不同时间点检测创面新生血管细胞数目、毛细血管截断面积及成纤维细胞数量;RT-PCR检测创面VEGF mRNA 、bFGF mRNA的表达水平;观察其对放射性创面愈合的影响。结果 实验组创面愈合率明显高于对照组;实验组创面组织中VEGF mRNA、bFGF mRNA的表达均高于对照组,差异均有统计学意义(P<0.05);对创面组织进行HE染色,发现实验组肉芽组织增多增厚,成纤维细胞数量及密度均高于对照组;伤后第8天、第15天,实验组的新生毛细血管数量及毛细血管横截面积均较对照组有所增加,实验组的成纤维细胞计数也明显高于对照组,差异均有统计学意义(P<0.05)。结论 采用负载VEGF、bFGF的PLGA纳米微囊复合体可以促进小鼠放射性损伤创面的愈合。     

Effects of oat beta-glucan on innate immunity and infection after exercise stress

PURPOSE: To test the effects of oat beta-glucan (ObetaG) on respiratory infection, macrophage antiviral resistance, and NK cytotoxicity. METHODS: Mice were randomly assigned to one of four groups: Ex-H2O, Ex-ObetaG, Con-H2O, or Con-ObetaG. ObetaG was fed in the drinking water for 10 d before intranasal inoculation of HSV-1 or sacrifice. Exercise consisted of treadmill running to volitional fatigue (approximately 140 min) for three consecutive days. Fifteen minutes after the last bout of exercise or rest, mice (N = 24) were intranasally inoculated with a standardized dose of HSV-1. Mice were monitored twice daily for morbidity and mortality. Additional mice were sacrificed after exercise, peritoneal macrophages were obtained via i.p. lavage and assayed for antiviral resistance to HSV-1 (N = 18), and spleens were harvested and assayed for NK cell cytotoxicity (N = 12). RESULTS: Exercise stress was associated with a 28% increase in morbidity (P = 0.036) and 18% increase in mortality (P = 0.15). Ingestion of ObetaG before infection prevented this increase in morbidity (P = 0.048) and mortality (P = 0.05). Exercise stress was associated with a decrease in macrophage antiviral resistance (P = 0.007), which was blocked by ingestion of ObetaG (P < 0.001). There were no effects of exercise or ObetaG on NK cytotoxicity. CONCLUSION: These data suggest that daily ingestion of ObetaG may offset the increased risk of URTI associated with exercise stress, which may be mediated, at least in part, by an increase in macrophage antiviral resistance.     

Athletic participation after myocardial revascularization. Possibilities and benefits.

Exercise after open heart operation is not only possible but highly desirable. Training increases the efficiency of exercise and therefore decreases myocardial work for any given level of activity. Even before sternal and incisional healing is complete the patient may become physically active. Almost every patient can improve his or her level of fitness safely by following simple guidelines. Exercise treadmill testing is the basis for assessing exercise capacity in cardiac patients. Upper-body exercise is not adequately emphasized in most exercise programs.     

局部应用PTD-SOD对机械性创伤愈合的影响

目的 探讨氧化应激在机械性创伤愈合发展中的地位、作用和抗氧化剂PTD-SOD对创伤愈合的影响.方法 制备机械性创伤小鼠模型和不同浓度的PTD-SOD(1 000 U、3 000 U、6 000 U、10 000 U)和SOD(3 000 U、6 000 U)溶液,分别用上述溶液进行治疗,同时设立模型对照组、等渗盐水对照组和复方碘液对照组,各组均连续治疗13天.观察各组创伤愈合情况,记录创伤收缩率和愈合天数;于创伤后第14天取各组小鼠创伤愈合部位皮肤,一部分制成10%组织匀浆液用于检测抗氧化酶(SOD、CAT、GSH-Px)活性及丙二醛(MDA)、羟脯氨酸(Hyp)含量,一部分制成病理组织切片用于皮肤组织学观察.结果 (1)与模型对照组、等渗盐水对照组及复方碘液对照组相比,同时相点PTD-SOD各组(10 000 U组除外)和SOD各组的抗氧化酶活性和Hyp含量显著升高(P<0.05或0.01),MDA含量显著降低(P<0.05或0.01),创伤收缩率提高(P<0.05或0.01),创伤愈合时间缩短(P<0.05或0.01).(2)在同等剂量下,从促创伤愈合时间、抗氧化酶活性、MDA含量、Hyp含量等方面比较,伤后同时相点PTD-SOD组明显优于SOD组(P<0.05或0.01).(3)10 000 U PTD-SOD组创伤愈合效果明显不如其他剂量PTD-SOD组(P<0.05或0.01).结论 在创伤愈合的早期特别是炎症期,应考虑氧化应激的存在,抗氧化治疗是一个治疗策略,适时、适当的抗氧化治疗,可以抑制氧化应激态,缩短创面愈合时间,提高创面愈合质量.适当剂量的PTD-SOD在皮肤创伤治疗中具有很好的抗氧化应激损伤、抑制炎症和促进愈合的效果.

Abstract：

Objective To study the role of the oxidative stress in the development of wound healing and observe the effect of the antioxidant PTD-SOD on damage and inflammation reaction after mechanical wound. Methods In this experiment,acute wound healing model by removal the whole layer dorsal skin of the mice was prepared,SOD(3 000 U and 6 000 U)and the fusion protein PTD-SOD with different concentrations(1 000 U,3 000 U,6 000 U and 10 000 U)were used to deal with the wounds continuously for 13 days.The mice were divided into different concentration SOD treatment group and PTD-SOD treatment group,model control group,physiological saline treatment group and compound iodine solution control group.The wound healing situation and healing percentage of the fight and left skin wounds of each mouse in every group was recorded every day.At day 14 after wound,the wound healing skin of each group was removed and some were used to make 10%tissues homogenate for detecting the activities of superoxide dismutase(SOD),catalase(CAT),glutathione peroxidase(GSH-Px)and contents of malondialdehyde(MDA)and hydroxyproline(Hyp);in the meantime,the other removed skin were fixed in 10% formalin for observing the histopathological changes of the tissues. Results Compared with the model control group,the physiological saline treatment group and the compound iodine solution control group,the skin wound healing percentage was significantly(P<0.05 or P<0.01)improved,with increase of the activities of SOD,CAT,GSH-Px and contents of Hyp (P<0.05 or P<0.01)and decrease of MDA(P<0.05 or P<0.01) in the SOD groups or PTD-SOD groups (except for 10 000 U PTD-SOD group).When compared with the physiological saline treatment group or the compound iodine solution treatment group,the effect was similar to the model control group.In comparison to the SOD groups,under the same dosage and environment condition,the PTD-SOD groups were much better than SOD groups with regard to promoting skin wound healing percentage,increasing activities of antioxidases and contents of Hyp,decreasing contents of MDA.Among the PTD-SOD groups,the effect of high dosage 10 000 U on promoting skin wound healing was declined. Conclusions The oxidative stress may playan important role in the development of wound healing.Proper application of treatment with antioxidants is a alternative strategy in the early stage of wound.PTD-SOD is able to prevent the oxidative stress damage,inhibit inflammatory infiltration and promote skin wound healing efficiently.     

Lactoferrin effect on lymphocyte cytokines and apoptosis is independent of exercise

BACKGROUND: Strenuous exercise increases apoptosis of intestinal lymphocytes (IL). Bovine lactoferrin (bLf), a protein found in milk products, affects lymphocyte apoptosis and the expression of TH1 and TH2 cytokines. OBJECTIVE: The purpose was to determine whether bLf affects apoptosis and TH1 (tumor necrosis factor alpha) and TH2 (interleukin-10) cytokine expression in IL of mice given strenuous exercise. METHODS:: Female C57BL/6 mice (n = 89), given three bouts of treadmill exercise, were killed either immediately, 24 h after the last bout, or before initiation of exercise; within exercise conditions, mice were fed control (0% bLf) or bLf-supplemented (2% bLf) diet for 12 d until sacrifice. IL were enumerated, and apoptosis and cytokine expression were determined by Western blot analysis; markers of stress (corticosterone and iso-prostanes) were measured in the plasma by radioimmunoassay and direct immunoassay. RESULTS: Exercise increased IL loss (P < 0.05) and the expression of caspase 3 (P < 0.001), heat shock protein 70 (P < 0.01), and interleukin-10 (P < 0.05) in mouse IL; bLf did not alter these responses. However, bLf reduced tumor necrosis factor alpha expression in mouse IL (P < 0.05), possibly through decreased nuclear factor kappaB expression (P < 0.05) in the supplemented group. CONCLUSIONS: Dietary bLf does not affect IL apoptosis after exercise but may confer intestinal protection through changes in cytokine expression, independent of exercise.     

Exercise training in obesity lowers blood pressure independent of weight change

PURPOSE: We used the rabbit model of obesity and exercise training to determine effects of exercise training during the development of obesity on resting blood pressure and heart rate, ventricular hypertrophy, blood volume, and hormonal profile. METHODS: Female New Zealand white rabbits were assigned to one of four groups: lean sedentary (L-S, N = 17), lean exercise-trained (L-EX, N = 16), obese sedentary (O-S, N = 18), and obese exercise-trained (O-EX, N = 15). Lean rabbits were fed a maintenance diet whereas obese rabbits were fed an ad libitum high fat (10% added fat) diet. Simultaneously, exercise-trained animals underwent a progressive treadmill exercise training protocol for 12 wk. After 12 wk of diet and exercise regimens, resting blood pressure and heart rate were measured from a central ear artery catheter. Ventricular hypertrophy was evaluated using wet ventricular weights. Blood volume was measured using the Evans blue dye procedure; hormonal profile was evaluated from arterial plasma/serum samples. RESULTS: After 12 wk, O-S and O-EX had similar body weights and similar percentage increases in body weight. Despite similar body weights, O-EX had an approximate 6-mm Hg lower mean blood pressure compared with the elevated pressure seen in O-S (P < or = 0.05). Obese rabbits had greater resting heart rate, plasma cholesterol and triglycerides, and plasma renin activity compared with lean rabbits, and these values were unaffected by exercise training. Plasma and blood volumes, as well as plasma insulin, cortisol, and aldosterone were unaffected by exercise training. CONCLUSION: These data suggest that exercise training, in the absence of differences in body weight, may be useful in the reduction of obesity-induced hypertension but that other therapies may be needed in order to control other cardiovascular risk factors.     

Acute exercise and subsequent nutritional adaptations: what about obese youths?

The imbalance between energy expenditure and energy intake is the main factor accounting for the progression of obesity. For many years, physical activity has been part of weight-loss programmes to increase energy expenditure. It is now recognized that exercise can also affect appetite and energy consumption. In the context of seeking new obesity treatments, it is of major interest to clarify the impact of physical exercise on energy intake. Many reviews on this topic have been published regarding both lean and overweight adults, and this review focuses on the relationships between acute exercise and the short-term regulation of energy intake in lean and overweight or obese youths. The current literature provides very few data regarding the impact of exercise on subsequent energy intake and perceived and measured appetite in children and adolescents, mainly because of methodological difficulties in the assessment of both energy intake and expenditure. It has been long suggested that energy intake was regulated after exercise in order to compensate for the exercise-induced energy expenditure and then preserve energy balance. This overview underlines that the energy expended during exercise is not the main parameter that influences subsequent energy intake in both lean and overweight/obese children and adolescents, and that factors such as the duration or intensity of exercise may have larger impact. The effects of acute exercise on the following nutritional adaptations (energy intake and appetite feelings) remain inconclusive in lean youths, mainly due to the lack of data and the disparity of the methodologies used. Studies in overweight or obese children and adolescents are confronted with the same difficulties, and the few available data suggest that intensive exercise (>70% maximal oxygen consumption) can induce a reduction in daily energy balance, as a result of its anorexigenic effect in obese adolescents. However, further studies are needed to clarify the impact of acute exercise on subsequent nutritional adaptations and appetite-related hormones in children and adolescents, and to investigate the effect of chronic exercise programmes.     

Exercise training in obese children and adolescents: current concepts

Childhood obesity has reached epidemic proportions worldwide and is associated with increased cardiovascular mortality and morbidity in adult life. The increase in fat mass in children and adolescents has occurred concomitantly with a decline in reported time for exercise. Evidence suggests that non-physically active children are more likely to become non-physically active adults and that encouraging the development of physical activity habits in children helps establish patterns that continue into adulthood. Dietary treatment of obesity is relatively ineffective in adults and it has been suggested that prevention of obesity in childhood and adolescence should emphasise increased physical activity rather than diet because of fears relating to the adverse effects of inappropriate eating patterns. Despite this, there are very few randomised controlled studies investigating the efficacy of exercise training in obese children or adolescents and many of the extant studies have been poorly controlled and have not specifically stratified the independent effect of exercise versus dietary modification.This review focuses on the well designed controlled trials that have evaluated the effect of exercise training in obese children and adolescents on body composition, haemodynamic and metabolic variables, cardiovascular fitness, muscular strength and vascular function. These studies indicate that, although exercise training does not consistently decrease bodyweight or body mass index, it is associated with beneficial changes in fat and lean body mass, emphasising the importance of comprehensive assessment of body composition in future exercise-training studies. Exercise training improves cardiovascular fitness and muscular strength; however, it seems to have little effect on blood lipid profile or blood pressure in obese young people. Importantly, recent studies have demonstrated that exercise training improves vascular endothelial function, an important surrogate measure that may predict future atherosclerotic risk in obese children and adolescents. Given that improvement in vascular function in these training studies occurred in the absence of changes in lipid fractions, haemodynamic variables or glucose metabolism, exercise appears to have a direct beneficial effect on the vasculature, in addition to its putative benefits through risk-factor modification.     

有氧运动和膳食脂肪对ApoE基因缺陷小鼠动脉粥样硬化斑块形成的影响

为了探讨有氧运动和膳食因素在动脉粥样硬化斑块形成过程中的作用,研究了在跑台上进行的有氧运动和低脂膳食对ApoE基因缺陷小鼠动脉粥样硬化斑块形成过程的影响。结果表明10周中等强度的有氧运动组和低脂膳食组ApoE基因缺陷小鼠主动脉窦处形成的动脉粥样硬化斑块面积均较对照组减少（P<0.05）;有氧运动结合低脂膳食组ApoE基因缺陷小鼠的斑块面积分别低于单独的运动组和低脂膳食组（P<0.05）。研究提示有氧运动和低脂膳食均有利于并有效减轻动脉粥样硬化斑块的形成,有氧运动和低脂膳食两种因素结合的作用大于单独的有氧运动和低脂膳食的作用,二者在预防动脉粥样硬化斑块的形成上可能存在协同加强作用。     

骨髓间充质干细胞对放创复合伤创面的促愈作用

目的 探讨骨髓间充质干细胞对放创复合伤创面的促愈作用。方法 利用自体骨髓来源的间充质干细胞移植于局部合并放射损伤的创面，采用荧光示踪技术、形态学观察、胶原染色、成纤维细胞和毛细血管计数、羟脯氨酸含量测定等多种指标，观察了间充质干细胞对放创复合伤创面的促愈使用。结果 间充质干细胞能加快创面愈合，促进肉芽组织生长和胶原合成。结论 骨髓间充质干细胞对放创复合伤创面有明显的促愈效应。     

MEBO在文唇术中的应用

目的:观察MEBO在文唇术中的作用,探寻减少文唇术后并发症的方法。方法:治疗组50例,于文唇术后当天即在创面上涂MEBO,每日4～6次;同时设对照组50例,创面当天涂阿昔洛韦软膏,每日4～6次,直至创面愈合。结果:治疗组创面平均愈合时间6±2天,创面未见瘢痕形成;对照组创面平均愈合时间10±3天,其中3例感染,2例瘢痕形成,随访3个月后瘢痕变软,遗留轻度色素沉着。结论:文唇术后应用MEBO,愈合时间短,并可有效预防创面感染及瘢痕增生等并发症。     

皮肤再生技术在烧伤创伤修复中的作用

本文主要介绍徐荣祥教授创立的皮肤再生医疗技术在烧伤、创伤、创疡创面修复中的作用。从报道的实验研究资料分析：MEBO可提高小鼠外周血WBC总数、PMN百分数和小鼠腹腔吞噬细胞的吞噬功能。同时，在局部创伤渗出液中测出含有IL-1，而IL-1可促进纤维细胞增殖及促进分泌胶原酶，引起炎症和发热，促进创面愈合，而炎症反应被认为是机体的防御反应，因此MEBO具有抗感染、止痛、促进创面愈合和减轻瘢痕形成等作用。     

下肢开放复杂伤口与创面的修复

目的 探讨多种原因造成的下肢开放复杂伤口与创面的修复.方法 应用皮瓣、肌皮瓣、大网膜移植等方法,对155例下肢复杂伤口与创面进行修复.结果 一次手术愈合率为50%;两次手术愈合率为14.8%;三次手术愈合率为7.7%.结论 皮瓣、肌皮瓣以及大网膜移植,可以有效修复多种原因造成的下肢复杂伤口与创面.