نتایج جستجو برای: phytochemicals

تعداد نتایج: 9554  

2016
Vikram A. Bagchi Joel P. Siegel Mark R. Demkovich Luke N. Zehr May R. Berenbaum

For some polyphagous insects, adaptation to phytochemically novel plants can enhance resistance to certain pesticides, but whether pesticide resistance expands tolerance to phytochemicals has not been examined. Amyelois transitella Walker (navel orangeworm) is an important polyphagous pest of nut and fruit tree crops in California. Bifenthrin resistance, partially attributable to enhanced cytoc...

2004
Sevtap Aydın Nurşen Başaran

A growing number of scientific concern is focusing on the significance of natural compounds that can act as protectants against diseases. Phenolic phytochemicals are a large group of substances ubiquitous in plants and found in significant quantities in vegetables, fruits and beverages such as teas. They have a number of biological effects in vivo and in vitro and have been regarded as possible...

Journal: :Toxicological sciences : an official journal of the Society of Toxicology 2004
Majorie B M van Duursen J Thomas Sanderson Paul C de Jong Marlies Kraaij Martin van den Berg

Phytochemicals are natural dietary constituents of fruits and vegetables. Some of these phytochemicals are known to affect estrogen-metabolizing enzymes. In breast tissue, estradiol can be metabolized to the catechol estrogens 2- and 4-hydroxyestradiol (2-OHE(2) and 4-OHE(2)). Catechol estrogens are suspected carcinogens potentially involved in the etiology of breast cancer. Catechol-O-methyltr...

Journal: :Phytochemistry Reviews 2019

Journal: :The Proceedings of the Nutrition Society 2007
Ian T Johnson

Epidemiological studies showing a protective effect of diets rich in fruits and vegetables against cancer have focused attention on the possibility that biologically-active plant secondary metabolites exert anti-carcinogenic activity. This huge group of compounds, now collectively termed 'phytochemicals', provides much of the flavour and colour of edible plants and the beverages derived from th...

Objective: The aim of this study was to estimate the cheminformatics and qualitative structure-activity relationship (QSAR) of cinnamaldehyde and eugenol. The effects of cinnamaldehyde and eugenol on the viability, doubling time and adipogenic or osteogenic differentiations of human adipose-derived mesenchymal stem cells (hASCs) were also investigated.  Materials and Methods: QSAR and toxicity ...

Cancer is still one of the major causes of mortality in both developing and developed countries. At this time, in spite of intensive interventions, a large number of patients have poor prognosis. Therefore, the effort for finding new anticancer agents with better efficacy and lesser side effects has continued. According to the traditional recommendations and experimental studies, numerous medic...

2013
Filomena Nazzaro Florinda Fratianni Raffaele Coppola

Most infectious diseases are caused by bacteria, which proliferate within quorum sensing (QS)-mediated biofilms. Efforts to block QS in bacteria and disrupt biofilms have enabled the identification of bioactive molecules that are also produced by plants. This mini review primarily focuses on natural QS inhibitors, which display potential for treating bacterial infections and also enhance the sa...

Journal: :Frontiers in bioscience 2012
Yu-Chang Chen Jui-Sheng Wu Shun-Tai Yang Chien-Yu Huang Chen Chang Grace Y Sun Teng-Nan Lin

Stroke, or brain attack, is the third leading cause of death and the leading cause of adult disability worldwide. There is a great demand for intervention therapy. Unfortunately, although more than 700 drugs that target neuroprotection showed beneficial effects in preclinical animal studies, none of them proved efficacious in treating stroke patients. There is recent interest in understanding m...

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