检索结果-南通市图书馆

Safety and Efficacy of ptcts Cosmetic Gel: Study on Human Radiodermatitis Lesions

Case Reports in Clinical Medicine 2015年第10期4卷 327-333页

作者： Silvia Regina Graziani Brigitte M. Van Eyll Carlos Elias Fristachi Maria de Lourdes Higuchi Renata Ikegami Jose Antonio Ramires Arnaldo Vieira de Carvalho Cancer Institute Sao Paulo Brazil Heart Institute (InCor) of Clinical Hospital Medical School University of S&atildeo Paulo S&atildeo Paulo Brazil

Radiodermatitis is a constant complication after radiotherapy with no efficient drug for prevention and treatment. Its physiopathology is complex, possibly related to injury of epidermis and endothelial cells from the basal layer by radiolysis, overproduction of free radicals, pro-inflammatory cytokines, and inflammation. ptcts gel is an after sun cosmetic gel composed by anti-oxidative plant extract rich in natural nanoparticles and thermal water (Complex A) and recombinant protein of Trypanosoma cruzi transialidase (Complex B), with high anti-oxidative and anti-apoptotic effects, presenting anti-aging and healing cutaneous properties. Objective: To study the safety and efficacy of ptcts gel for topic use in volunteer subjects with healthy skin, and in patients with radiodermatitis, in different concentrations of Complexes A and B. Material and Methods: The project was approved by the Ethical Committee of Arnaldo Vieira de Carvalho Institute, Sao Paulo, Brazil. The individuals were submitted to laboratorial toxicity study through tests for liver and kidney function, levels of blood glucose and blood count before and after 7 days of ptcts application. We studied two groups: GI-22 volunteers with healthy skin, presenting articular or skeletal muscle pain and GII-38 patients in radiotherapy for breast or head and neck cancer, with radiodermatitis grade 2 or 3. The patients were evaluated before and after 1.0 ml/cm2 ptcts gel application, twice a day. We tested Complex B in four different concentrations, and Complex A concentrations varied inversely. Results: No irritation signs were observed in GI nor GII group, 64% of GI had important decrease in the intensity of the muscular or articular pain, and 99% of GII showed regression of radiodermatitis, all exhibiting relief of pain. No patient presented hematologic, renal or hepatic toxicity. Conclusion: ptcts cosmetic gel is a safe option for radiodermatitis treatment, with no side effects or laboratorial toxicity in diff

关键词： Radiodermatitis Nanoparticles Thermal Water Transialidase Toxicity ptcts Cosmetic Gel

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Oral ptcts (Particulated Transialidase) Removes Serum Microparticles and Decreases Inflammation in Atherosclerotic Plaques of Rabbits

引用

Advances in Nanoparticles 2015年第4期4卷 107-115页

作者： Shérrira M. Garavelo Jaqueline J. Pereira Nilsa S. Y. Wadt Marcia M. Reis Renata N. Ikegami Joyce T. Kawakami Abdelali Agouni Suely A. P. Palomino Dulcinéia Abdalla Maria de Lourdes Higuchi Heart Institute (InCor) University of Sao Paulo Clinics Hospital Sao Paulo Brazil Faculty of Health and Medical Sciences (FHMS) University of Surrey Guildford UK College of Pharmacy Qatar University Doha Qatar Department of Clinical and Toxicological Analysis Faculty of Pharmaceutical Sciences University of Sao Paulo Sao Paulo Brazil

Background: Previous studies showed that atherosclerotic plaque vulnerability was related with microparticles (MPs)-vesicles larger than 100 nm, which released MMP9 collagenase. In our previous study, intramuscular injection of a new drug (ptcts) normalized oxidized LDL serum levels and reduced rabbit atherosclerosis. Now, we studied administration of oral ptcts in order to clarify anti-atherosclerotic mechanism of action, analyzing if the treatment removed MPs containing ox-LDL and Mycoplasma pneumoniae antigens and improved the immune response. Methods: We compared two groups of rabbits. Control group (CG, n = 6)—1% cholesterol enriched diet for 12 weeks;Treated group (TG, n = 8)—1% cholesterol enriched diet for 12 weeks with administration of ptcts (400 μl/day) during the last 6 weeks of diet. The animals had their blood collected, in three different phases of the protocol before being fed with hypercholesterolemic diet, before being treated with water or ptcts and at the moment of sacrifice. The serum was submitted to immunofluorescence technique to evaluate the quantity of microparticles marked with antibodies against Mycoplasma pneumoniae and ox-LDL. A fragment of aorta was submitted to immunohistochemical detection of antigens from MMP9, ox-LDL, NF-κB and IL-1β. Results: ptcts showed significant reduction in MMP-9 (P = 0.001) and a tendency of reducing IL-1β (P = 0.09) in the aortic plaques compared with CG. In the serum, ptcts was able to remove microparticles containing antigen of ox-LDL (P = 0.004) and Mycoplasma pneumoniae (P β and mycoplasma, as well as a better stabilization of the atheromatous plaque by reducing levels of MMP-9, avoiding plaque rupture, without causing mortality or toxicity.

关键词： Atherosclerosis Inflammation ptcts Mycoplasma NF-κB

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：