检索结果-南通市图书馆

Evaluating bioactivity and bioaccessibility properties of the propolis extract prepared with L-lactic acid: An alternative solvent to ethanol for propolis extraction

引用

FOOD BIOSCIENCE 2023年第3期53卷 2351-2358页

作者： atayoglu, ali timucin Atik, Didem Sozeri Boluk, Esra Gurbuz, Basak Ceylan, Fatma Duygu Capanoglu, Esra Atayolu, Rumeysa Paradkar, Anant Fearnley, James Palabiyik, Ibrahim Istanbul Medipol Univ Tradit & Complementary Med Dept Istanbul Turkiye Tekirdag Namik Kemal Univ Food Engn Dept Tekirdag Turkiye Istanbul Tech Univ Food Engn Dept Istanbul Turkiye Istanbul Medipol Univ Nutr & Dietet Dept Istanbul Turkiye Univ Bradford Ctr Pharmaceut Engn Sci Sch Pharm Bradford W Yorkshire England Apiceut Res Ctr Whitby N Yorkshire England

Ethanol readily solubilizes the active components of propolis. Due to certain disadvantages of ethanolic extracts, developing new non-ethanolic extraction methods is highly desirable. This study aimed to determine the content of phenolic compounds and antioxidant activity of propolis by using lactic acid extraction compared to ethanol. Various concentrations of ethanol and lactic acid were utilized to produce extracts, and an in vitro digestion procedure was applied to the extracts to compare the bioaccessibility of phenolic compounds by using LC-MS/MS in extracts and HPLC-DAD in digested samples. The compounds detected in the lactic acid-based propolis so-lution had similar values to those in the ethanol solution at a propolis concentration of 10%. The propolis-lactic acid solution had a significantly higher antioxidant activity against DPPH radical than the one prepared with ethanol at the same concentration (p < 0.05). Chrysin and naringenin were found as the most abundant phenolic compounds in the initial samples during in vitro digestion experiments. Pinocembrin was the most bioaccessible component among the dialyzed IN fractions of ethanol and lactic acid-based solutions, whereas some compounds were not detected. The results suggest that lactic acid may be used as an alternative to ethanol for propolis extraction.

关键词： Antioxidant Extraction Lactic acid Propolis Phenolics

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

Liver transplantation: Current status and challenges

引用

World Journal of Gastroenterology 2016年第18期22卷 4438-4445页

作者： Caroline C Jadlowiec timucin Taner William J. von Liebig Transplantation Center Division of Transplant Surgery Department of SurgeryMayo Clinic

Great progress has been made in the field of liver transplantation over the past two decades. This progress, however, also brings up the next set of challenges: First, organ shortage remains a major limitation, and accounts for a large proportion of wait list mortality. While living donation has successfully increased the total number of liver transplants done in Asian countries, the total number of such transplants has been stagnant in the western hemisphere. As such, there has been a significant effort over the past decade to increase the existing deceased donor pool. This effort has resulted in a greater use of liver allografts following donation after cardiac death(DCD) along with marginal and extended criteria donors. Improved understanding of the pathophysiology of liver allografts procured after circulatory arrest has not only resulted in better selection and management of DCD donors, but has also helped in the development of mechanical perfusion strategies. Early outcomes demonstrating the clinical applicability of both hypothermic and normothermic perfusion and its potential to impact patient survival and allograft function have generated much interest. Second, long-term outcomes of liver transplant recipients have not improved significantly, as recipients continue to succumb to complications of long-term immunosuppression, such as infection, malignancy and renal failure. Furthermore, recent evidence suggests that chronic immune-mediated injury to the liver may also impact graft function.

关键词： Donation after cardiac death Mechanical perfusion Renal-sparing immunosuppression Antibody-mediated rejection

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

Current diagnostic tools and treatment modalities for rectal prolapse

引用

World Journal of Clinical Cases 2023年第16期11卷 3680-3693页

作者： Mustafa Oruc timucin Erol Department of General Surgery Hacettepe University School of MedicineAnkara 06100Turkey

Rectal prolapse is a circumferential,full-thickness protrusion of the rectum through the *** is a rare condition,and only affects 0.5%of the general *** treatment modalities have been described,which have changed significantly over *** in the last decade,laparoscopic and robotic surgical approaches with different mobilization techniques,combined with medical therapies,have been widely *** patients have presented with a wide range of complaints(ranging from abdominal discomfort to incomplete bowel evacuation,mucus discharge,constipation,diarrhea,and fecal incontinence),understanding the extent of complaints and ruling out differential diagnoses are essential for choosing a tailored surgical *** is crucial to assess these additional symptoms and their severities using preoperative scoring ***,radiological and physiological evaluations may explain some vague symptoms and reveal concomitant pelvic ***,there is no consensus on or standardization of the optimal extent of dissection,type of procedure,and materials used for rectal fixation;this makes providing maximum benefits to patients with minimal complications *** recent publications and systematic reviews have not recommended the most appropriate treatment *** review explains the appropriate diagnostic tools for different conditions and summarizes the current treatment approaches based on existing literature and expert opinions.

关键词： Rectal prolapse Constipation Fecal incontinence Diagnosis Minimally invasive surgical procedures Colorectal surgery

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

Significance of progressive liver fibrosis in pediatric liver transplants: A review of current evidence

引用

World Journal of Gastroenterology 2020年第17期26卷 1987-1992页

作者： Mathew George Philippe Paci timucin Taner Departments of Surgery Mayo ClinicRochesterMN 55905United States Departments of Immunology Mayo ClinicRochesterMN 55905United States

This article reviews the current evidence and knowledge of progressive liver fibrosis after pediatric liver *** often-silent histologic finding is common in long-term survivors and may lead to allograft dysfunction in advanced *** through protocolized liver allograft biopsy remains the gold standard for diagnosis,and recent evidence suggests that chronic inflammation precedes fibrosis.

关键词： Allograft fibrosis Pediatric liver transplant Chronic rejection Immunosuppression Portal inflammation Liver allograft

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

Revisiting the liver’s role in transplant alloimmunity

引用

World Journal of Gastroenterology 2019年第25期25卷 3123-3135页

作者： Nitin Abrol Caroline C Jadlowiec timucin Taner William J.von Liebig Center for Transplantation and Clinical Regeneration Massyo ClinicRochesterMN 55905United States Transplant Center Mayo ClinicPhoenixAZ 85259United States

The transplanted liver can modulate the recipient immune system to induce tolerance after *** phenomenon was observed nearly five decades ***,the liver’s role in multivisceral transplantation was recognized,as it has a protective role in preventing rejection of simultaneously transplanted solid organs such as kidney and *** liver has a unique architecture and is home to many cells involved in immunity and *** transplantation,these cells migrate from the liver into the *** studies identified chimerism as an important mechanism by which the liver modulates the human immune *** studies on human T-cell subtypes,cytokine expression,and gene expression in the allograft have expanded our knowledge on the potential mechanisms underlying *** this article,we discuss the privileged state of liver transplantation compared to other solid organ transplantation,the liver allograft’s role in multivisceral transplantation,various cells in the liver involved in immune responses,and the potential mechanisms underlying immunomodulation of host alloresponses.

关键词： Liver transplantation Alloimmunity Liver-kidney transplant Tolerance Rejection

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

抽穗期叶面施用腐植酸改善硬粒小麦生理和农艺性状

引用

腐植酸 2023年第2期 53-64页

作者： Arzu Mutlu timucin Tas 王元(译) 孙斌(译) 土耳其尚勒乌尔法哈莱大学阿卡卡尔职业高中有机农业系尚勒乌尔法01170 土耳其巴利克西尔大学凯普苏特职业高中巴利克西尔10660 山西农业大学园艺学院太谷030801

作物生产因越少使用化学品,作物的质量越好而引起了广泛的关注。有机肥料通常用于满足作物的营养需求,而腐植酸有助于进一步提高有机农业作物的生长和生产力。因此,本研究探讨了腐植酸在改善硬粒小麦生理和农艺性状中的作用。用5种不同... 详细信息

作物生产因越少使用化学品,作物的质量越好而引起了广泛的关注。有机肥料通常用于满足作物的营养需求,而腐植酸有助于进一步提高有机农业作物的生长和生产力。因此,本研究探讨了腐植酸在改善硬粒小麦生理和农艺性状中的作用。用5种不同用量的腐植酸,即0(H0)、1.5(H1)、2.5(H2)、3.5(H3)和4.5 L/hm^(2)(H4)分别施用于有机小麦的拔节期(SE)和抽穗期(H)。以土耳其广泛种植的硬粒小麦“Burgos”为试验材料,测量叶绿素指数(CI)、旗叶面积(FSA)、脯氨酸含量(PC)、株高(PH)、蛋白质比率(PR)和籽粒产量(GY)的相关数据。腐植酸的用量和生长阶段对不同的生理和农艺性状都有显著影响。结果表明,H0的CI、FSA、PC、PH和GY值最低,而H4的值最高;H0籽粒产量为3882.82kg/hm^(2),H4的腐植酸用量使产量增加到4988.14 kg/hm^(2)(28%)。在试验的第二年,由于天气条件较为温暖和干燥,GY降低,而PC和PR增加。H0中PC值最高,PC值随腐植酸用量的增加而降低。施用腐植酸为植物生长创造了良好的环境。总体而言,在抽穗期施用H4的小麦产量及相关性状最高。因此,建议在抽穗期施用4.5 L/hm^(2)腐植酸,可以提高有机栽培条件下的硬粒小麦产量。

关键词：腐植酸籽粒产量脯氨酸含量叶绿素指数回归分析

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

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

在线全文

在线全文

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

在线全文

在线全文

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：