نتایج جستجو برای: radiation protective agents

تعداد نتایج: 695886  

2017
Meng Qin Weijuan Chen Juanjuan Cui Wentao Li Dongmei Liu Weifen Zhang

Radiation pneumonitis is a clinical problem with a high incidence. Once the onset of radiation pneumonitis has occurred, the administration of antioxidants and anti-inflammatory agents is the most commonly used method of clinical treatment. Quercetin (Que) is a common flavonoid, with potent anti-inflammatory and anti-oxidant activities. In the present study, the therapeutic effect of inhaled Qu...

Journal: :Cancer research 2005
Sanjay Awasthi Sharad S Singhal Sushma Yadav Jyotsana Singhal Kenneth Drake Aalok Nadkar Ewa Zajac Dilki Wickramarachchi Nancy Rowe Adly Yacoub Paul Boor Seema Dwivedi Paul Dent Wendy E Jarman Berchmans John Yogesh C Awasthi

RLIP76 (RALBP1) is a glutathione-conjugate transporter that is a critical component of clathrin-coated pit-mediated endocytosis, as well as in stress responses. In cultured cells, it provides protection from stressors including heat, oxidant chemicals, chemotherapeutic agents, UV irradiation, and X-irradiation. Here, we show marked reduction in glutathione conjugate transport capacity and stepw...

2012
Chandrasekharan Nair Kesavachandran Frank Haamann Albert Nienhaus

BACKGROUND Various procedures, especially minimal invasive techniques using fluoroscopy, pose a risk of radiation exposure to orthopaedic staff. Anatomical sites such as the eyes, thyroid glands and hands are more vulnerable to radiation considering the limited use of personal protective devices in the workplace. The objective of the study is to assess the annual mean cumulative and per procedu...

Journal: :Oncology reports 2010
Qing-Zhong Yuan Chun-Ting Wang Yong-Qiu Mao Peng Zhang Hua-Shan Shi Zhi-Yong Li Li Pan Dan-Dan Yu Fei Leng Xiang Chen Wei Ying Jing-Hui Xu Wei Li Fan Wu Yuan Wen Tian-Tai Ma Yu-Quan Wei

Radiosensitivity of tumors is due to a complex interaction of various factors, it has been reported that survivin also acts as a constitutive and inducible radioresistance factor in a panel of tumor cells and approaches designed to inhibit survivin expression or function may lead to tumor sensitisation to chemical and physical agents. Previously, we found that the plasmid encoding the phosphory...

2015
Ashraf Virmani Andreas Diedenhofen

There is constant low level background radiation from the cosmos but in certain situation the body may be subjected to increased acute or chronic exposure from other sources. This occurs in situations such as radiation accidents, medical use and could possibly occur in military/terrorist incident. Dependent on the type, strength of the actual source, degree of exposure and type of radiation dif...

Journal: :RoFo : Fortschritte auf dem Gebiete der Rontgenstrahlen und der Nuklearmedizin 2015
M A Kuefner M Brand C Engert S A Schwab M Uder

UNLABELLED Shortly after the discovery of X-rays, their damaging effect on biological tissues was observed. The determination of radiation exposure in diagnostic and interventional radiology is usually based on physical measurements or mathematical algorithms with standardized dose simulations. γ-H2AX immunofluorescence microscopy is a reliable and sensitive method for the quantification of rad...

2012
Zi-Luan Fan Zhen-Yu Wang Li-Li Zuo Shuang-Qi Tian

There is a growing concern about the serious harm of radioactive materials, which are widely used in energy production, scientific research, medicine, industry and other areas. In recent years, owing to the great side effects of anti-radiation drugs, research on the radiation protectants has gradually expanded from the previous chemicals to the use of natural anti-radiation drugs and functional...

2002
Pavlína Plevová

Ionising radiation and cytostatic agents used in cancer therapy exert damaging effects on normal tissues and induce there a complex response at the cellular and molecular levels. Cytokines and adhesion molecules are released during this response and mediate intercellular interactions among the effectors of immune and other systems.1,2 Medical strategies that modulate this response in order to r...

2016
Grzegorz Gralewicz Grzegorz Owczarek

The paper analyses the selected optical parameters of protective optic filters used for protection of the eyes against hazardous radiation within the visible (VIS) and near infrared (NIR) spectrum range. The indexes characterizing transmission and reflection of optic radiation incident on the filter are compared. As it follows from the completed analysis, the newly developed interference filter...

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