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Novel Combinations for Wound Healing: Chitosan/PVA Nano Fiber; Royal Jelly,Probiotic 新型伤口愈合材料:壳聚糖/聚乙烯醇纳米纤维蜂王浆,益生菌
Pub Date : 2017-02-05 DOI: 10.4172/2157-7552.100I101
Saeed Ahmadi Majd, M. R. Khorasgani, Firouzeh Khosravi
Nowadays, Diabetes is one of the most common diseases in the world. These diseases and disorders of the problems for the patient and the health system create. One of the long term complications of diabetes is neuropathy, or nerve problems which are involved in diabetic foot ulcers and prevalence of this disorder in patients between 12 and 50 percent mentioned. Diabetes mellitus is a group of metabolic diseases characterized by hyperglycemia resulting from defects in insulin secretion, insulin action, or both. Regarding the absence of sufficient efficacy of the available methods in diabetic wound healing, the use of alternative or complementary compounds has been considered (Figure 1 and 2).
如今,糖尿病是世界上最常见的疾病之一。这些疾病和失调给病人和卫生系统造成了问题。糖尿病的长期并发症之一是神经病变,或与糖尿病足溃疡有关的神经问题,这种疾病的患病率在12%到50%之间。糖尿病是一组以高血糖为特征的代谢性疾病,由胰岛素分泌或胰岛素作用缺陷引起。鉴于现有方法在糖尿病伤口愈合中缺乏足够的疗效,人们考虑使用替代或补充化合物(图1和2)。
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引用次数: 0
The Influences of Electromagnetic Field Irradiated by High Voltage Transmission Lines with 50 Hz on the Features of Blood in Animals 50 Hz高压输电线路辐照电磁场对动物血液特性的影响
Pub Date : 2017-02-03 DOI: 10.4172/2157-7552.1000194
Xiao-Feng Pang, Li Gun
The influences of electromagnetic field(EMF) of high voltage transmission lines(HVTL) with 50 Hz on the features of blood in the animals, including the biochemical indicators, routine index, refractive index and infrared absorption of the serum and adtevak as well as the features of hemoglobin molecules in it, are researched and measured extensively by using the biological- chemical methods, LQ-300 K automatic biochemistry analyzer, 670Nicolet FTIR spectrometers and Abbe refractometer, respectively. The results obtained showed the variations for the alanine aminotransferase (ALT), total protein (TP), albumin (ALB), total bilirubin (TB), direct bilirubin (DB), indirect bilirubin (IB), globulin (CLO), aspartate aminotransferase (AST), ratio of ALB with CLO (A/C), urea nitrogen (BUN), direct bilirubin (DB), globulin (GLO) as well as refractive index in the blood under the influences of the EMF, but their variations are differences, in which the variation of ALT is most significant (P<0.05), the increase of number of white blood cells is also significant (P<0.01). Thus we can affirm that the EMF of HVTL can vary the properties of the blood in rats. At the same time, we further elucidated the reasons or mechanisms of these change, for which we can say totally that they are due to the variations of the states and properties of the protein molecules, such as the hemoglobin, in blood. This conclusion can be verified by the experimental results in the infrared absorptions of the serum, adtevak and hemoglobin molecules, respectively. Therefore, our investigations manifested clearly that the EMF irradiated by HVTL can influence and vary the properties of the blood in rats; it has an obvious biological effect.
采用生物化学方法、LQ-300 K型全自动生化分析仪、670Nicolet FTIR光谱仪和Abbe折射仪,广泛研究了50 Hz高压输电线电磁场对动物血液生化指标、常规指标、折射率、红外吸收及血红蛋白分子特征的影响。分别。结果表明,在电动势作用下,血中丙氨酸转氨酶(ALT)、总蛋白(TP)、白蛋白(ALB)、总胆红素(TB)、直接胆红素(DB)、间接胆红素(IB)、球蛋白(CLO)、天冬氨酸转氨酶(AST)、ALB / CLO比值(A/C)、尿素氮(BUN)、直接胆红素(DB)、球蛋白(GLO)及折光率均有变化,但变化均有差异,其中以ALT变化最为显著(P<0.05);白细胞数量的增加也极显著(P<0.01)。因此,我们可以肯定,HVTL的电磁场可以改变大鼠血液的性质。同时,我们进一步阐明了这些变化的原因或机制,我们可以完全地说,它们是由于血液中蛋白质分子的状态和性质的变化,如血红蛋白。这一结论可以通过血清、adtevak和血红蛋白分子的红外吸收实验结果来验证。因此,我们的研究清楚地表明,HVTL辐照的电磁场可以影响和改变大鼠的血液特性;它具有明显的生物学效应。
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引用次数: 4
Tissue microRNAs as Cancer Tissue Biomarkers 组织microrna作为癌症组织生物标志物
Pub Date : 2017-01-30 DOI: 10.4172/2157-7552.1000190
Rahul Upadhya
microRNA (miRNA) is non-coding RNA sequences that modify DNA, typically through cleavages. They can have an effect on cell cycle progression, namely through inhibiting regulators for tumorigenesis control. Because of this, specific miRNA sequences can be monitored for cancer detection purposes. This detection is conducted through a variety of methods, such as in tissue, blood plasma, serum, ductal lavage fluid and nipple aspirate fluid. Recent research has been done to compare miRNA detection accuracy between these methods, especially with tissue analyses since this tends to be more invasive. Imaging methods have been utilized for cancer detection, but they are less effective in staging cancers, which is necessary for clinicians to provide individualized treatments. In several cases, detection accuracy has been compared to the accuracy from biopsy methods, which is a common practice but also invasive. In the future, non-invasive techniques of detection and personalized treatments will be the emphasis of research in cancer detection.
microRNA (miRNA)是修饰DNA的非编码RNA序列,通常通过裂解。它们可以对细胞周期进程产生影响,即通过抑制肿瘤发生控制的调节因子。正因为如此,特定的miRNA序列可以监测癌症检测的目的。这种检测是通过多种方法进行的,如组织、血浆、血清、导管灌洗液和乳头吸入液。最近的研究已经完成了比较这些方法之间的miRNA检测准确性,特别是与组织分析相比,因为这往往更具侵入性。成像方法已被用于癌症检测,但它们在癌症分期方面效果较差,这对于临床医生提供个性化治疗是必要的。在一些情况下,检测准确性与活检方法的准确性进行了比较,这是一种常见的做法,但也是侵入性的。在未来,无创检测技术和个性化治疗将是癌症检测研究的重点。
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引用次数: 0
Bio Technological Intervention with Platelet Rich Plasma for Assisted Regeneration of Sole 富血小板血浆生物技术干预辅助足底再生
Pub Date : 2017-01-01 DOI: 10.4172/2157-7552.1000206
S. Shrivastava, S. Naik, Bhushan Patil, Pankaj Kharabe, Anurag Gupta, Swapnil Joshi
With the advent of Regenerative medicine products in medicine, newer solutions are getting evolved for complex conditions. The Cellular therapies offer a new ray of hope by inducing regeneration of tissue at the site of damage. The cellular therapy led by platelet rich plasma (PRP) is one such key regenerative product. But there is a huge variability in its usage, particularly for wounds. The standardisation for clinical usage is not yet evolved, hence limiting the clinical application of the same. The authors have developed a standard protocol “STARS” therapy, which utilises PRP as biotechnological tool, re-engineering the damaged tissue and gradually assisting the regeneration. In this study we report 8 cases of wounds / ulcers over the sole being treated by it. The results are excellent and offer a milestone solution to non-healing wounds/ ulcers over soles. These wounds are otherwise, very difficult to treat particularly as they are associated with high risks factors such as infection, Diabetes and old age. They are under constant pressure due to weight bearing and give way easily and do not heal. The bioenginreeing of the sole tissues through PRP led STARS intervention is safe, effective and easily reproducible.
随着再生医学产品在医学领域的出现,新的解决方案正在为复杂的情况而发展。细胞疗法通过诱导损伤部位的组织再生,给人们带来了新的希望。以富血小板血浆(PRP)为主导的细胞治疗就是这样一种关键的再生产品。但它的用法有很大的差异,尤其是在伤口上。临床使用的标准化尚未形成,因此限制了其临床应用。作者开发了一种标准方案“STARS”疗法,该疗法利用PRP作为生物技术工具,重新设计受损组织并逐渐帮助再生。在这项研究中,我们报告了8例伤口/溃疡的鞋底被治疗。结果非常好,并提供了一个里程碑式的解决方案,无法愈合的伤口/溃疡的鞋底。否则,这些伤口很难治疗,特别是因为它们与感染、糖尿病和老年等高风险因素有关。它们承受着持续的压力,因为要承受重量,很容易脱落,而且不愈合。通过PRP引导STARS介入对足底组织进行生物工程,安全、有效、易复制。
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引用次数: 0
pH-Sensitive Chitosan Hydrogel with Instant Gelation for Myocardial Regeneration ph敏感壳聚糖水凝胶用于心肌再生
Pub Date : 2017-01-01 DOI: 10.4172/2157-7552.1000212
F. Alimirzaei, E. Vasheghani-Farahani, Ali Ghiaseddin, M. Soleimani, Pouri, Zeinab Najafi-Gharavi
Recently in situ injectable hydrogels have received considerable attention to regenerate failure heart tissue after myocardial infarction (MI). But two criteria remain crucial: first, defining their chemical composition and structural parameters because they must be fabricated to withstand physiological condition while having high cell retention; second, providing the hydrogel with short gelation time to protect the cells from washout and extrusion in the injection site. In this study, two different pH-sensitive hydrogels with instant gelation in the presence of aqueous acetic acid (WH sample), and DMEM medium along with acetic acid (MH sample) were prepared. The morphology and structural and mechanical properties of the hydrogels were evaluated by SEM, FTIR and compressive strength test, respectively. Also, the equilibrium swelling ratio of each hydrogel and their degradation rate as a desirable property were also determined. MTT test confirmed that both hydrogels were biocompatible and non-toxic for human Bone Marrow Mesenchymal Stem Cells (hBMSCs) within 14 days as well as 31 and 36% cell growth during this time for WH and MH samples, respectively. The viability investigation of human Adipose Mesenchymal Stem Cells (hADSCs), tested by live/dead assay with Acridine Orange and Ethidium bromide staining, showed high cell survival and cell density increase during 1, 7, 14, 21 days. The overall results demonstrated that both in situ forming hydrogels are promising candidates for regeneration of the infarcted myocardium.
近年来,原位注射水凝胶在心肌梗死(MI)后再生衰竭心脏组织方面受到了广泛关注。但有两个标准仍然至关重要:首先,确定它们的化学成分和结构参数,因为它们必须在制造时能够承受生理条件,同时具有高细胞保留率;第二,使水凝胶凝胶化时间短,以保护细胞在注射部位不被冲洗和挤压。在本研究中,制备了两种不同的ph敏感水凝胶,分别在水溶液乙酸(WH样品)和DMEM介质伴乙酸(MH样品)存在下立即凝胶化。通过扫描电镜(SEM)、红外光谱(FTIR)和抗压强度测试对水凝胶的形貌、结构和力学性能进行了表征。此外,还确定了每种水凝胶的平衡膨胀比及其作为理想性能的降解率。MTT试验证实,这两种水凝胶在14天内对人骨髓间充质干细胞(hBMSCs)具有生物相容性和无毒,在此期间,WH和MH样品的细胞生长分别为31%和36%。用吖啶橙和溴化乙啶染色法对人脂肪间充质干细胞(hADSCs)进行活/死实验,结果表明,在1、7、14、21天,hADSCs的细胞存活率较高,细胞密度增加。总的结果表明,这两种原位形成的水凝胶都是梗死心肌再生的有希望的候选者。
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引用次数: 18
Gene Delivery System: Non-Viral Mediated Chemical Approaches 基因传递系统:非病毒介导的化学方法
Pub Date : 2017-01-01 DOI: 10.4172/2157-7552.1000205
N. Khan
Employing cationic lipids and polymers, inorganic nanoparticles, etc. as DNA carriers for gene delivery systems are gaining interest with the passage of time such chemical vectors form condensed complexes or aggregates with negatively charged DNA to not only protect the DNA from nucleases but also facilitate its intracellular uptake and site specific delivery.
随着时间的推移,利用阳离子脂质和聚合物、无机纳米颗粒等作为基因传递系统的DNA载体越来越受到人们的关注,这些化学载体与带负电荷的DNA形成凝聚复合物或聚集体,不仅可以保护DNA免受核酸酶的侵害,还可以促进其在细胞内的摄取和位点特异性传递。
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引用次数: 0
Pre-Differentiated Skin-Like Cells can Alleviate In Vitro Burn Injury 预分化皮肤样细胞可减轻体外烧伤
Pub Date : 2016-12-26 DOI: 10.4172/2157-7552.1000189
Ruhma Mahmood, Mahmood S Choudhery, Shaheen N. Khan, S. Riazuddin
Considering importance of stem cell based therapies for wound healing, we have previously established protocols for successful differentiation of stem cells (isolated from placenta) into skin-like cells (keratinocytes and fibroblasts). In the current study we aim to evaluate the effect of pre-differentiated skin-like-cells on wound healing potential using an in vitro burn injury model. The amniotic epithelial cells (AECs) and umbilical cord mesenchymal stem cells (UCMSCs) obtained from amniotic membrane and umbilical cord tissue; respectively, were differentiated into skin-like cells (keratinocyte and fibroblasts respectively). In order to make an in vitro burn injury model, keratinocytes and fibroblasts were isolated from rats and insulted with high temperature (up to 50oC). The optimal temperature for burn injury models was determined using viability assay, cytotoxicity level, proliferation, and expression of pro-apoptotic. In order to assess effectiveness of pre-differentiated skin like cells, the keratinocyte- and fibroblasts-like cells were co-cultured with injured keratinocytes and injured fibroblasts, respectively. Results indicated that optimal temperature for the induction of heat injury for both keratinocytes and fibroblasts was 50oC. At this temperature both types of cells (keratinocytes and fibroblasts) showed modified morphology, drastic cellular injury, least viability, higher expression of pro-apoptotic markers and lower expression of proliferation genes. Co-culturing of pre-differentiated cells leads to an increase in viability and proliferation concurrent with decreased apoptosis. We have established successfully in vitro model of burn injury that might be helpful to evaluate the wound healing potential of cells. Further, predifferentiated skin-like cells are a potential source for the treatment of severe burn injuries.
考虑到干细胞治疗对伤口愈合的重要性,我们之前已经建立了将干细胞(从胎盘中分离出来)成功分化为皮肤样细胞(角质形成细胞和成纤维细胞)的方案。在目前的研究中,我们旨在通过体外烧伤模型评估预分化皮肤样细胞对伤口愈合潜力的影响。从羊膜和脐带组织中获得羊膜上皮细胞(AECs)和脐带间充质干细胞(UCMSCs);分别分化为皮肤样细胞(角质细胞和成纤维细胞)。为了制备体外烧伤模型,从大鼠体内分离角质形成细胞和成纤维细胞,并在高达50℃的高温下进行损伤处理。通过细胞活力测定、细胞毒性水平、细胞增殖和促凋亡表达确定烧伤模型的最佳温度。为了评估预分化皮肤样细胞的有效性,将角质形成细胞和成纤维细胞样细胞分别与受伤的角质形成细胞和受伤的成纤维细胞共培养。结果表明,诱导角化细胞和成纤维细胞热损伤的最佳温度均为50℃。在这个温度下,两种类型的细胞(角质形成细胞和成纤维细胞)都表现出形态改变,细胞损伤严重,活力最低,促凋亡标志物表达较高,增殖基因表达较低。预分化细胞的共培养增加了细胞活力和增殖,同时减少了细胞凋亡。我们成功地建立了体外烧伤模型,这可能有助于评估细胞的创面愈合潜力。此外,预分化皮肤样细胞是治疗严重烧伤的潜在来源。
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引用次数: 0
A Post Mortem Case Study: Diffuse Pulmonary Ossification and Sudden Death 一例死后病例研究:弥漫性肺骨化和猝死
Pub Date : 2016-12-16 DOI: 10.4172/2157-7552.1000188
S. Cook, G. Sandusky
A post mortem examination was performed on a 45 year old white male who died suddenly during a competitive athletic swimming event. There were few clinical events seen in the year before his death. Clinical workup was negative and lung scan showed a small coin lesion was attributed to focal bacterial/fungal infection. Antibiotic treatment appeared to clear this condition on another follow up scan and he was sent home with an inhaler. On gross post mortem examination the lungs revealed diffuse pulmonary congestion, focal hemorrhage and edema. Small focal white areas of calcified lesions were also seen. In addition, an enlarged heart with left ventricular hypertrophy and thickened interventricular septum were seen. There was moderate atherosclerosis midway down the left anterior descending branch of the coronary artery observed. Histologic examination of lung tissue proved confirmatory for diffuse pulmonary ossification. Heart microscopic examination was consistent with cardiomyocyte hypertrophy. In conclusion, the diffuse pulmonary ossification was probably related to the sudden death with concomitant myocardial hypertrophy.
对一名45岁的白人男子进行了尸检,他在一场竞技游泳比赛中突然死亡。在他去世的前一年几乎没有临床症状。临床检查为阴性,肺部扫描显示小的硬币病变归因于局灶性细菌/真菌感染。在另一次随访扫描中,抗生素治疗似乎消除了这种情况,他被带着吸入器送回家。尸检显示肺弥漫性充血,局灶性出血和水肿。可见小的白色局灶性钙化灶。心脏增大,左室肥厚,室间隔增厚。冠状动脉左前降支中段可见中度动脉粥样硬化。肺组织组织学检查证实弥漫性肺骨化。心脏镜下检查与心肌细胞肥大一致。结论弥漫性肺骨化可能与猝死并发心肌肥大有关。
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引用次数: 0
Development of Biodegradable Films Based on Chitosan/Glycerol Blends Suitable for Biomedical Applications 壳聚糖/甘油共混物生物降解膜的研制
Pub Date : 2016-12-10 DOI: 10.4172/2157-7552.1000187
Deb, I. Maria, C. Bernal, N. Francois
In the present work, chitosan/glycerol blends were used to prepare biodegradable films with potential application in dermal treatment. While the presence of glycerol gives the hydrating effect, the chitosan characteristics contribute to dermal regeneration. Swelling degree measurements, water vapor permeability determinations, mechanical tests, scanning electronic microscopy and Fourier transform infrared spectroscopy analysis; biodegradability studies, thermogravimetric and differential scanning calorimetry analysis were used to analyze the influence of the incorporation of significant amounts of glycerol in film properties. The obtained results suggested that the glycerol addition provide the films with the required properties for the intended application related to dermal treatment. Increasing the glycerol concentration, a cluster effect produced by the glycerol molecules surrounding the macromolecular chains led to a decrease in the swelling degree and an increase in the WVP along with improvements in mechanical properties.
利用壳聚糖/甘油共混物制备生物降解膜,在皮肤治疗中具有潜在的应用前景。虽然甘油的存在产生水合作用,但壳聚糖的特性有助于皮肤再生。膨胀度测量、水蒸气渗透性测定、力学试验、扫描电子显微镜和傅里叶变换红外光谱分析;生物降解性研究、热重法和差示扫描量热法分析用于分析大量甘油掺入对膜性能的影响。所得结果表明,甘油的加入为与皮肤治疗相关的预期应用提供了所需的性能。随着甘油浓度的增加,大分子链周围的甘油分子产生的簇效应导致溶胀程度降低,WVP增加,机械性能改善。
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引用次数: 37
Platelet Rich Plasma as a Mono Therapy for Diabetic Ulcer 富血小板血浆作为单一疗法治疗糖尿病溃疡
Pub Date : 2016-11-30 DOI: 10.4172/2157-7552.1000186
S. Shrivastava, C. Mahakalkar, P. Singh, A. Chandak, S. Tayde
Diabetic non-healing Ulcers are very difficult to treat. Many of such Patients undergo Amputations to lessen the morbidity. There is no defined management for them. Current management requires multiple surgical interventions, drugs and intense local dressing and care. The authors have developed an innovative therapy called as STARS (Sandeep’s technique for assisted regeneration of skin) for wound management. It is basically based on principle of regenerative medicine with autologous platelet rich Plasma (PRP) being the source of regenerative growth factors leading to complete healing of wounds. This case is a young female, a Juvenile Diabetic with non-healing infected ulcers on both heels since 3 years. She received STARS therapy and her one ulcer healed completely and second ulcer healed 40%. A complete healing of non healing diabetic ulcer without surgery, drugs and intense dressing, in an uncontrolled diabetic patient, is a milestone in such wound management. STARS therapy led by Platelet regeneration, is an innovative protocol for such cases.
糖尿病性不愈合溃疡很难治疗。许多此类患者接受截肢手术以减轻发病率。它们没有明确的管理。目前的治疗需要多种手术干预,药物和强烈的局部敷料和护理。作者开发了一种创新的治疗方法,称为STARS (Sandeep的辅助皮肤再生技术),用于伤口管理。它基本上是基于再生医学原理,自体富血小板血浆(PRP)是再生生长因子的来源,导致伤口完全愈合。该病例是一名年轻女性,患有3年未愈合的双脚跟感染溃疡的青少年糖尿病患者。她接受了STARS治疗,她的一个溃疡完全愈合,第二个溃疡愈合40%。在不受控制的糖尿病患者中,不需手术、药物和强烈敷料即可完全治愈不愈合的糖尿病溃疡,是此类伤口管理的一个里程碑。以血小板再生为主导的STARS治疗是治疗此类病例的创新方案。
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引用次数: 1
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Journal of Tissue Science and Engineering
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