نتایج جستجو برای: biological activities

تعداد نتایج: 812368  

2009
Alka MITAL

Parasitic and bacterial infections affecting the gastrointestinal tract represent a significant cause of morbidity and mortality worldwide. Nitroheterocyclic drugs have been available since the early 1960s for the treatment of anaerobic protozoa. The application of these drugs has widened and they are presently used to treat anaerobic pathogenic bacteria and protozoa. 5-nitroimidazoles are a we...

Journal: :Molecules 2018
Yanna C F Teles Maria Sallett R Souza Maria de Fátima Vanderlei de Souza

The great diversity of enzymatic reactions in plant secondary metabolism allows the continuous discovery of new natural compounds and derivatives. Flavonoids, for example, can be found as aglycone or as several sorts of glycosylated, acetylated, methylated, and sulphated derivatives. This review focuses on sulphated flavonoids, an uncommon group of flavonoid derivatives found in some plant fami...

2017
Nikhil Khurana Suman Bala Sharma Aiman Abbas Jafri Akash M Sharma

Azaphilones which can be isolated from various natural resources like fungi and plant have range of potent biological activities that can be exploited against various diseases. Structure of numerous azaphilones has already been described. The present review talks about activities of azaphilones like anti-cancerous, anti-HIV, anti-nematicidal, anti-bacterial, anti-fungal which have been extensiv...

2009
Didem DELİORMAN ORHAN Nilüfer ORHAN Berrin ÖZÇELIK Fatma ERGUN

The fractions of different polarity, namely chloroform, ethylacetate, n-butanol, and remaining water fractions, were fractionated from an aqueous extract of V. vinifera leaves. The antibacterial, antifungal, antiviral, antioxidant activities, and total phenolic content of these fractions were investigated. The chloroform fraction showed a promising effect against Herpes simplex virus type-1 (HS...

Journal: :Phytotherapy research : PTR 2002
H M A Cavanagh J M Wilkinson

Essential oils distilled from members of the genus Lavandula have been used both cosmetically and therapeutically for centuries with the most commonly used species being L. angustifolia, L. latifolia, L. stoechas and L. x intermedia. Although there is considerable anecdotal information about the biological activity of these oils much of this has not been substantiated by scientific or clinical ...

2015
Jalal Hasan Mohammed

In this study the chemistry of chalcones has generated intensive scientific interest due to their biological and industrial applications. Chalcones are natural biocides and are well known intermediates in the synthesis of heterocyclic compounds exhibiting various biological activities. Chalcones and their derivatives possess some interesting biological properties such as antibacterial, antifung...

2014
An-Na Li Sha Li Yu-Jie Zhang Xiang-Rong Xu Yu-Ming Chen Hua-Bin Li

The oxidative stress imposed by reactive oxygen species (ROS) plays an important role in many chronic and degenerative diseases. As an important category of phytochemicals, phenolic compounds universally exist in plants, and have been considered to have high antioxidant ability and free radical scavenging capacity, with the mechanism of inhibiting the enzymes responsible for ROS production and ...

2011
Nadeem Siddiqui Bishmillah Azad M Shamsher Alam Ruhi Ali

In recent years, indole derivatives have acquired conspicuous significance due to their wide spectrum of biological activities. It is well known fact that the indole nucleus is present as a structural unit in many natural products. Synthesis and biological evaluation of indole derivatives have been a topic of special interest to organic and medicinal chemists. A number of indole derivatives hav...

Journal: :International journal of biometeorology 1989
S Inoué M Kabaya

Contrary to previous presumption, accumulated evidence indicates that far-infrared rays are biologically active. A small ceramic disk that emits far-infrared rays (4-16 microns) has commonly been applied to a local spot or a whole part of the body for exposure. Pioneering attempts to experimentally analyze an effect of acute and chronic radiation of far-infrared rays on living organisms have de...

2007
ARPANA RANA

Benzothiazoles are bicyclic ring system with multiple developed and examined, in vitro, their antitumor activity in applications. In the 1950s, a number of 2-aminobenzothiazoles ovarian, breast, lung, renal and colon carnicoma human cell were intensively studied as central muscle relaxants. Since lines. Pyrimido benzothiazole and benzothiazolo then medicinal chemists have not taken active inter...

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