摘要：Burn injuries are considered one of the major sources of trauma that might lead to substantial morbidity and mortality. Severe burns cause multiple organ dysfunction and even sometimes organ failure, leading to debility and subsequent scarring that affects the quality of life and mental health. Consequently, this study is designed to compare the outcomes of two burn treatment modalities in patients suffering from burn injuries who were admitted to the Burn Unit / AL-Hussein Teaching Hospital / Samawa / Al-Muthanna Governorate. A clinical study was established during the period from December 2018 to January 2022 60 patients of both sexes suffered from different burn injuries. All patients are treated with Moist Exposed Burn Ointment -MEBO- or with covered classic methods using silver sulphadiazine cream dressings. Follow-up of treated patients is done to evaluate the treatment outcome. Our study included 44 burned and 16 scalded cases of different age groups, with second and third burn degrees extending on different body surface areas ranging from 30-60% in males and 30-70% in females.  Of 60 patients, 40 females (67%) were between 10 and 40 years old, and 20 males (33%) were between 3 and 36 years old. The mortality percentages were 7 (23.3%) and 2 (6.6 %) cases out of a total of 60 patients for the conventional method and MEBO-treated group, respectively. Sepsis was observed in most dead cases, manifested by foul-smelling wound discharge and necrotic non-viable wound tissues, in addition to pneumonia and bronchitis. Pseudomonas sp, Klebsiella sp, and Proteus sp were isolated from these cases by culture and sensitivity tests.  In conclusion, this study showed that the MEBO cream application in treating burned injuries revealed dramatic curative hopeful results with less liability for infective and septic complications compared with the conventional method, represented by the Sulphadiazine cream application. The authors recommend using treatment in burn units instead of using the routine old conventional method to avoid the expected morbidity and mortality and gain acceptable cosmetic results.  

摘要：New hopes in cell therapies have steadily arisen with ongoing progress in stem cell research, and innumerable conditions could be now treated and cured, from musculoskeletal injuries to diabetes to cardiac failure, to cite but a few, with the appropriate stem cells available. Arguably, the ideal therapeutic stem cells are those that naturally heal, repair, and replenish the target tissue in life, and research from the last decades has uncovered the presence of such committed, specialized stem cells in most organs. However, these cell lineage-specific regenerative cells are rare, difficult to identify and purify, and virtually impossible to culture for amplification as functionally intact, undifferentiated units. For this reason, and with the notable exception of hematopoietic stem cells, these are not presently amenable to clinical utilization.From the 1980's, Prof. Rongxiang Xu developed the theory that some of the pluripotent stem cells that build the embryo in early development also establish through adult life a minor subset of cells which, although seemingly terminally differentiated, retain strong multi-lineage developmental potential. He called these "potential regenerative cells" (PRCs), proposing these can be recruited into tissue repair and regeneration when no other progenitor cells are available (1). Although this hypothesis could not be fully tested experimentally at the time, it later turned out as strikingly visionary: on the one hand, it was demonstrated that mature cells can be reprogrammed into stem cells in culture, a discovery rewarded by attribution of the Nobel Prize in Medicine or Physiology in 2012 (2). Hence, transition from a functional, specialized cell back into a naïve, unbiased stem cell is, biologically, feasible and might explain the persistence of Rongxiang Xu's PRCs in adult organs. Another example in support of PRC existence refers to mesenchymal stem cells. MSCs are multipotent cells that can differentiate in culture into bone, cartilage, fat, tendon, muscle, and indirectly support, via growth factor secretion, the regeneration of multiple other tissues (3). This extraordinary potential has stimulated the use of MSCs in over 2000 clinical trials in attempts to treat multiple conditions in cardiology, orthopaedics, cancerology, nephrology, and many other specialties including medical immunology, since MSCs are also immunosuppressive (see clinicaltrials.gov). Despite such a popularity, progress in MSC science has long been hindered by the unknown identity of native, tissueresident mesenchymal stem cells, since these cells appear and expand in extended cultures of total, unselected cell populations dissociated from bone marrow, adipose tissue, umbilical cord, or other organs. Put in other words, MSCs are normally produced in vitro from elusive, rare ancestor cells that have long resisted description. This changed when multicolour, stringent flow cytometry cell sorting and sensitive differentiation assays were used for MSC prospective identification. In full support of the PRC concept proposed by Rongxiang Xu, innate tissue resident mesenchymal stem cells turned out to be differentiated perivascular cells of documented function. Pericytes, which enwrap capillaries and microvessels, regulate blood pressure and control angiogenesis. Equivalent cells populate the tunica adventitia at the periphery of larger blood vessels. Both purified pericytes and adventicytes give rise to bona fide mesenchymal stem cells when cultured in vitro (4,5). The use of transgenic reporter mice, in which cell lineages can be tracked dynamically, has confirmed the progenitor cell potential of perivascular cells in vivo (6). In aggregate, all these results have confirmed that differentiated cells can be reprogrammed into regenerative cells in culture and in the living organism, thus supporting Dr Xu's hypothesis on the existence of PRCs in adult organs.Professor Rongxiang Xu contributed to the development of formulations, mostly inspired by traditional Chinese medicine, for stem cell (PRC) stimulation in situ and in culture. Such a supplement, for instance, named GIC, was claimed to regenerate the gastrointestinal mucosa, as well as nerves, in culture. More recently, the LifeRegen Inc. company developed a line of products inspired by Dr Xu's research and patents were issued for a proprietary blend of natural ingredients produced via an original manufacturing process. All LifeRegen protocols rely on the infusion of combined black sesame oil, skullcap root, and beeswax. These products are considered GRAS (generally recognized as safe) by the FDA, and represent a scientific breakthrough merging ancient Chinese medicine recipes and Rongxiang Xu's groundbreaking results that are, moreover, being supported and extended by ongoing current research. More precisely, GI Balance and Juvenate Skincare are LifeRegen's proprietary formulations developed to nurture and renew the gut lining and create a cellular, rejuvenation promoting protective barrier for the skin, respectively.The insightful Prof. Rongxiang Xu predicted that some of the cells that constitute developed organs retain stem potential, and hence can be qualified as "potentially regenerative cells", and devised formulations that can stimulate such cells into tissue regeneration. He left us a rich legacy of centers at prestigious institutions, such as the Rongxiang Xu Center for Regenerative Therapeutics at Beth Israel Deaconess Medical Center in Boston, the Rongxiang Xu Center for Regenerative Life Science at the University of Southern California, and the Rongxiang Xu College of Health and Human Services at Cal state LA.The LifeRegen company has resumed and considerably amplified and diversified Dr Xu's approach to regenerative medicine, and is now sponsoring clinical studies for the GI Balance supplement that in previous published research enabled regeneration and rejuvenation of the entire gut mucosa within 6 months. In a more fundamental investigation perspective, PRCs have been prospectively identified and characterized in depth, for instance as pericytes and other perivascular elements, and can be purified to homogeneity and in large numbers from multiple organs (3). This opens unforeseen possibilities in regenerative medicine research whereby such well-characterized potential regenerative cells can be selected from the bone marrow, pancreas, skin, adipose tissue and other organs and treated with natural supplements for enhanced proliferation, migration, and differentiation. Such protocols should be initialized in culture and further developed in vivo by transplantation into relevant animal hosts. In perspective are novel biomolecular manoeuvres to drive the improved healing and replenishment of, for instance but not exclusively, cardiovascular, musculoskeletal, and epithelial tissues.

摘要：<正>负压封闭引流技术（VSD）利用持续的吸引作用,清除坏死组织和脓性分泌物,达到促进创面愈合的目的,是治疗糖尿病足溃疡的重要手段[1]。皮肤再生医疗技术（MEBT/MEBO）是基于中医治疗皮肤溃疡“祛腐”、“生肌”原则,结合现代医学及科技技术而来,其抑制感染、促进创面愈合的作用已在既往研究中充分证实[2]。晚期糖基化终末产物（AGEs）为机体还原糖与游离氨基发生非酶糖基化反应的产物,近年来的研究发现其与血管病变、创面愈合有密切关系[3]。Wnt信号通路在创面愈合中发挥重要作用,其中Wnt/β-catenin为最经典的通路,

摘要：目的:观察皮肤再生医疗技术(Moist exposed burn therapy/Moist exposed burn ointment,MEBT/MEBO)促进糖尿病足Wagner 3级创面愈合作用,初步探讨MEBT/MEBO对糖尿病足Wagner 3级创面愈合过程中AGEs-RAGE信号通路的干预机制,为临床MEBT/MEBO治疗糖尿病足溃疡提供理论依据。方法:采用随机数字表法纳入50～70岁糖尿病足Wagner 3级患者进行随机分组,分为治疗组36例和对照组30例。两组病例均进行基础治疗,包括控制血压、血脂,扩血管、营养神经、营养支持等对症支持治疗。治疗组采用MEBT/MEBO进行创面处理,对照组采用贝复济进行创面处理,换药次数1～2次/日。在治疗前、治疗两周、治疗四周分别对患者创面情况及症状情况(包括渗液、腐肉、肉芽、上皮量、创面面积及深浅、周围皮色、肿胀、疼痛)进行记录,并依照症状积分量表进行比较。于治疗前、治疗两周、治疗四周分别取部分创面组织,匀浆取上清液采用ELASA法测定AGEs、RAGE表达水平。所有实验数据采用SPSS22.0统计分析软件处理,P<0.05为差异有统计学意义。结果:本研究共纳入66例糖尿病足Wagner 3级患者,分为治疗组(MEBO组)36例和对照组(贝复济组)30例。治疗前,两组病例一般情况(年龄、餐后血糖、肱踝指数、创面面积)、症状积分比较,组间差异均无统计学差异(P>0.05),具有可比性。治疗两周后,与贝复济组比较,MEBO组的腐肉、肉芽积分降低趋势明显,差异具有统计学意义(P<0.05);治疗四周后,MEBO组的渗液、腐肉、肉芽、上皮量、创面、创周情况积分较贝复济组下降趋势明显,差异具有统计学意义(P<0.05)。在治疗两周、治疗四周,两组创面组织AGEs表达水平均有所下降,与贝复济组比较,MEBO组AGEs表达量下降趋势明显,差异具有统计学意义(P<0.05);MEBO组在治疗两周、治疗四周RAGE表达量明显下降,与贝复济组比较,两组之间有明显统计学差异(P<0.05)。两组患者在经过四周治疗后,经秩和检验结果显示:治疗组痊愈2例,显效23例,有效9例,无效2例,有效率94.4%,显效率63.89%;贝复济组治愈0例,显效6例,有效19例,无效5例,有效率83.33%,显效率20%。两组结果比较,差异具有统计学意义(P<0.05),MEBO组疗效优于贝复济组。结论...