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Synergistic Antioxidant Activity in Brazilian Propolis Extract Blends: An in Vitro Study

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Food and Nutrition Sciences 2023年第4期14卷 385-400页

作者： José Dilson Francisco da Silva Suslin Raatz thiel Sabrina Somacal Fernanda Cristina Breda Pimpernelli Jonco dos Santos Osmar Damian Prestes Renato Zanella Renius de Oliveira Mello Department of Food Science and Technology Federal University of Santa Maria (UFSM) Santa Maria Brazil Department of Animal Science Federal University of Santa Maria (UFSM) Santa Maria Brazil Department of Chemistry Federal University of Santa Maria (UFSM) Santa Maria Brazil

A simplex-lattice mixture design with response surface methodology was used to evaluate in vitro synergistic antioxidant activity of red, green, and brown Brazilian propolis extract blends. The in vitro antioxidant capacity of propolis extract blends was measured using the fluorine method of oxygen radical absorption capacity assay (ORAC assay). A synergistic antioxidant interaction was identified between green and brown propolis extracts, and the predictive model accused a binary mixture composed of 59% green and 41% brown propolis extracts with increased antioxidant activity of about 54%. Our findings suggest a possible reduction in the dosages of these natural antioxidants in their various potential applications, including health and food, thereby proving to be a highly promising alternative for the rational use and valorization of propolis.

关键词： Green Propolis Red Propolis Natural Antioxidants Food Additives Mixture Modeling

首例报道:持续性苗勒管综合征男孩合并子宫腺肉瘤1例

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世界核心医学期刊文摘（儿科学分册） 2006年第2期2卷 53-54页

作者： thiel D.D. Erhard M.J. 刘凯 Department of Urology Mayo Clinic Jacksonville Jacksonville FL 32224 United States

Persistent mü llerian duct syndrome (PMDS) is a rare form of male pseudohermaphroditism. Bilateral fallopian tubes and a uterus occur with an otherwise normal male phenotype. Testicular neoplasm in PMDS has been reported, but malignant degeneration of the remnant female genitalia has only once been reported. We present imaging, surgical specimen, and surgical pathology of the first documented case of uterine adenosarcoma of a mü llerian remnant in a 14-year-old boy with PMDS presenting with gross hematuria and increasing abdominal protuberance. The child died of metastatic disease after surgical resection.

关键词：苗勒管综合征子宫腺肉瘤持续性男孩男性假两性畸形首例女性生殖器官 PMDS 检查结果双侧输卵管

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技术漫谈

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包含内转换和系间窜跃过程的广义非绝热动力学方法

丛书名：科技德语分级读物

1981年

作者：（西德）蒂尔（thiel H.P.）顾士渊译注

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包含内转换和系间窜跃过程的广义非绝热动力学方法

中国化学会第29届学术年会

作者：崔刚龙方维海 Walter thiel 北京师范大学化学学院德国马克思普朗克煤炭研究所

基于轨迹的非绝热动力学模拟已经逐渐成为研究分子、生物、材料体系的光物理和光化学过程的一个标准方法[1-2]。但是,传统的非绝热动力学只能描述相同自旋态间的非绝热跃迁,即内转换过程。这个瓶颈大大的限制了非绝热动力学方法的应用... 详细信息

基于轨迹的非绝热动力学模拟已经逐渐成为研究分子、生物、材料体系的光物理和光化学过程的一个标准方法[1-2]。但是,传统的非绝热动力学只能描述相同自旋态间的非绝热跃迁,即内转换过程。这个瓶颈大大的限制了非绝热动力学方法的应用前景。因为在许多体系中,甚至是有机分子中,超快的系间窜跃过程已经被实验所证实;它们甚至可以和飞秒的内转换过程竞争[3]。为了能同时模拟内转换和系间窜跃过程,我们最近发展了一个广义的非绝热动力学方法[4]和程序包（GTSH2012）[5]。另一方面,为了模拟发生于凝聚相体系中的光物理和光化学过程,例如溶液光化学和生物光化学,我们也发展了QM/MM版本的广义非绝热动力学方法和程序包（GTSH2013和CHEMSHELL3.5）[5]。在这个报告中,我将简单地介绍我们发展的方法、程序包的架构和使用、初步的应用等等。

关键词：非绝热动力学内转换和系间窜跃光物理和光化学计算机模拟程序包

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涤纶POY微细纤维的现代化生产技术

国际纺织导报 1997年第2期25卷 44-46,48-49页

作者： W.Stibal U.Kemp S.thiel 黄希 Ems-Inventa公司

现在,POY是合成纤维长丝中最重要的产品之一。从70年代开始,POY的生产就已工业化。然而,尽管已有了20多年的实践经验,有关POY生产工艺的开发工作仍在继续进行。

关键词：微细纤维涤纶POY 现代化生产紧凑型纺丝机导丝辊生产工艺纤度合成纤维长丝喷丝板

应用透明质酸钠人工泪液强化治疗后发生角膜钙化

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世界核心医学期刊文摘（眼科学分册） 2006年第8期2卷 29-30页

作者： Bernauer W. thiel M.A. Kurrer M. 王文军 OMMA Eye Center University of Zü rich Theaterstrasse 2 CH- 8001 Zü rich Switzerland Dr.

Aim: To report a potential adverse effect of intensified treatment with sodium hyaluronate artificial tears. Methods: Five cases of deep calcium deposition in the cornea associated with ocular surface disease and frequent use of hyaluronic acid artificial tears are described. All patients used one formulation of phosphate buffered hyaluronate eye drops when rapid calcification developed. All eyes required corneal graft surgery for visual rehabilitation. Specimens at keratoplasty were available for light microscopy and investigation by dispersive x ray analysis. The phosphate concentration in the medication used for topical treatment was measured and compared to alternative hyaluronate preparations. Results: Light microscopy showed dense mineralisation of the entire stroma. The crystalline deposits consisted of hydroxyapatite, Ca5(PO4)3OH. A 50- fold higher concentration of phosphate was measured in the sodium hyaluronate eye drops used for treatment (50.9 mmol/l) when compared with normal serum. The other hyaluronate formulations showed phosphate concentrations from < 0.1 mmol/l to 10.9 mmol/l. Conclusions: The hyaluronate artificial tear formulation “ Hylo-Comod” favours the formation of insoluble crystalline calcium phosphate deposits in presence of epithelial keratopathy. This is because of its high phosphate concentration and typically frequent instillation. Manufacturers and prescribers should be aware that topical preparations may contain considerable amounts of phosphatewhichmay lead to sight threatening corneal complications.

关键词：人工泪液角膜钙化透明质酸钠沉着物角膜基质角膜移植术角膜移植手术角膜疾病眼表疾病磷酸

B(C6F5)3催化邻二醇脱氧和重排反应的机理研究

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B(C6F5)3催化邻二醇脱氧和重排反应的机理研究

Spontaneous Baroreflex Sensitivity in Normotensive African-American Men

中国化学会·第十三届全国物理有机化学学术会议

作者：成贵娟 Nikolaos Drosos Bill Morandi Walter thiel Max-Planck-Institut für Kohlenforschung Kaiser-Wilhelm-Platz 1 香港中文大学(深圳)

通过生物质转化合成平台化合物由于其可持续性获得广泛的关注,其中多元醇是生物质转化得到的一种常见原料化学品。由于多个羟基的存在,多元醇的选择性脱氧还原反应一直是研究的难点。对于1,2-邻二醇,传统过渡金属催化方法通常还原所有...

通过生物质转化合成平台化合物由于其可持续性获得广泛的关注,其中多元醇是生物质转化得到的一种常见原料化学品。由于多个羟基的存在,多元醇的选择性脱氧还原反应一直是研究的难点。对于1,2-邻二醇,传统过渡金属催化方法通常还原所有羟基或者2-位羟基。这里我们采用量子化学计算研究了首例B(CF)催化1,2-邻二醇的选择性1-位羟基脱氧还原反应。

关键词：

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Open Journal of Molecular and Integrative Physiology 2019年第1期9卷 1-10页

作者： Peter L. Latchman Gregory J. Gates Robert thiel Robert S. Axtell Weili Zhu Ally Morin-Viall Tianhong Yue Qin Yang Kenneth Gardner Ronald E. De Meersman Exercise Science Department Southern Connecticut State University New Haven CT USA Department of Pediatrics Albert Einstein College of Medicine Yeshiva University Bronx NY USA Capital University of Physical Education and Sports Beijing China G. C. Foster College of Physical Education and Sport Spanish Town Jamaica College of Medicine American University of Antigua Osbourn Antigua and Barbuda

Purpose: African-American men (AAM) have a greater risk of hypertension (HTN) than Caucasian men (CM). To reduce this risk, determining the differences in mechanisms involved in HTN and understanding the relationship between these mechanisms and factors affecting blood pressure (BP) in AAM and CM is necessary. One such mechanism is spontaneous baroreflex sensitivity (sBRS) and two factors are cardiorespiratory fitness (CRF) and arterial stiffness (AS). The aims of this study were to determine, firstly, whether there are differences in sBRS between young, normotensive AAM and CM, and secondly, to determine if CRF and AS are significant predictors of sBRS in young, normotensive AAM and CM. Methods: Twenty-three normotensive AAM and 36 CM were recruited from Southern Connecticut State University. Measures included anthropometric, sBRS (alpha-index), and CRF (maximal oxygen consumption [VO2max]), as well as AS (carotid-femoral pulse wave velocity [Cf-PWV]). Independent t-tests were used to determine differences between groups and multiple regression analysis was used to determine how much of the variation in sBRS was explained by CRF and AS. Results: The sBRS was significantly lower in AAM (10.3 ± 3.8 ms/mmHg) vs. CM (13.3 ± 5.7 ms/ mmHg), P = 0.03. CRF and AS were not significant predictors of sBRS in AAM (P = 0.25) and CM (P = 0.30). There was no relationship between, sBRS, CRF and AS;CRF was significantly reduced in AAM vs. CM (45.1 ± 6.3 vs. 52.1 ± 7.5 mL·kg?1·min?1, P ≤ 0.001). Conclusions: Young normotensive AAM demonstrated significantly lower sBRS vs. CM, irrespective of having fair CRF and normal BP. CRF and AS are not significant predictors of sBRS in young, normotensive AAM and CM. The attenuation in sBRS in AAM did not result in AAM having higher BP versus CM. This finding underscores the need for more detailed examination of the role of sBRS in the etiology of HTN in AAM.

关键词： African-American Men Spontaneous Baroreflex Sensitivity Cardiorespiratory Fitness Arterial Stiffness Hypertension

原发性中枢神经系统淋巴瘤(PCNSL):MRI反应标准修订

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世界核心医学期刊文摘(神经病学分册) 2006年第2期 50-51页

作者： Küker W. Ngele T. thiel E. 刘康永 Department of Neuroradiology Radcliffe Infirmary Woodstock Road Oxford OX2 6HE United Kingdom.Dr

The authors investigated the applicability of Macdonald response criteria to patients with primary CNS lymphoma (PCNSL). Four of 68 patients with persisting contrast-enhancing lesions after primary therapy did not receive further therapy, and none showed tumor progression after up to 54 months. Because contrast enhancement may not necessarily indicate residual, biologically active lymphoma, the authors propose a modification of the Macdonald response criteria.

关键词：原发性中枢神经系统淋巴瘤 MRI PCNSL 反应