GENOTOXIC AND ANTIGENOTOXIC ACTIVITY OF CHEMICAL COMPOUNDS OF PLANT ORIGIN AS APPLIED TO HORTICULTURE

1987 ◽  
pp. 21-30
Author(s):  
R.H.C. San
Keyword(s):  
Chemical Compounds ◽  
Plant Origin

scholarly journals Drug interactions between herbal medicines and oral contraceptives

2021 ◽  
Vol 10 (13) ◽  
pp. e372101321331
Author(s):  
Daniella Jordão Valmiro ◽  
Lucas Moyses Pinto ◽  
Lucas Nascimento Barbosa ◽  
Luiza Beatriz Carvalho de Araújo ◽  
Rodrigo Vieira Gonzaga
Keyword(s):  
Adverse Effects ◽  
Drug Interactions ◽  
Oral Contraceptives ◽  
Synergistic Effects ◽  
Herbal Medicines ◽  
Chemical Compounds ◽  
Clinical Effects ◽  
Plant Origin ◽  
Saw Palmetto ◽  
Kava Kava

The use of herbal medicines has grown considerably in recent years, due to the erroneous thought that products of plant origin are harmless, and therefore do not cause adverse effects or have drug interactions. The use of these drugs with oral contraceptives can bring risks to patients. The potential negative clinical effects that can be caused by these drug interactions must be emphasized to prevent risks and ensure the effectiveness of this contraceptive method that is one of the most used by women seeking to prevent pregnancy. The users of herbal medicines usually believe that herbal medicine is a therapeutic alternative free of adverse effects and/or incapable of causing drug interactions, but herbal medicines are composed of several chemical compounds, which, in turn, may be responsible for antagonistic and/or synergistic effects with other drugs. The main interactions that can occur with contraceptives are with popularly used herbal medicines such as licorice, alfalfa, cannabis, cimicifuga, St. John's wort, ginseng, kava-kava, saw palmetto, sene, and soy. The herbal medicines have several chemical compounds, among which we highlight the secondary metabolites, responsible for the pharmacological actions and mechanism of action of drug interactions, which are often similar in plants that have in their composition the same metabolites, as in the case of saponins and isoflavones that reduce the speed of biotransformation of oral contraceptives.

scholarly journals SILICA UROLITHIASIS IN BEEF CATTLE.: IV. THE RELATIONSHIP BETWEEN THE pH AND BUFFERING CAPACITY OF THE ASH OF CERTAIN FEEDS, pH OF THE URINE, AND UROLITHIASIS

1961 ◽  
Vol 41 (1) ◽  
pp. 49-54 ◽  
Author(s):  
L. M. Bezeau ◽  
C. B. Bailey ◽  
S. B. Slen
Keyword(s):  
Beef Cattle ◽  
Urinary Calculi ◽  
Chemical Compounds ◽  
Buffering Capacity ◽  
Statistical Relationship ◽  
Plant Origin ◽  
Urine Ph ◽  
Alkaline Urine ◽  
Per Se ◽  
The Relationship

Two experiments were carried out to determine the relationship existing between the pH and buffering capacity of the ash of feeds and the urine pH, and the incidence of silica urolithiasis.In the first experiment the pH and buffering capacity were determined on the ash of 51 feeds of plant origin. No statistical relationship between the pH of the ash and its buffering capacity was found. Twenty-one of these feeds and four chemical compounds were fed to Holstein steer calves and the urine pH recorded. Twelve of the twenty-one feeds produced an acid urine.In the second experiment, four Holstein steer calves were fed for 6 months on rations designed to produce either an acid or alkaline urine. All calves produced silicerous urinary calculi. Urine pH per se did not seem to be a factor in the incidence of silica urolithiasis.

scholarly journals Initial Evaluation of the Effectiveness of Selected Active Substances in Reducing Damage To Rape Plants Caused By Arion Lusitanicus (Gastropoda, Pulmonata, Arionidae)

2010 ◽  
Vol 50 (4) ◽  
pp. 520-526 ◽  
Author(s):  
Jan Kozłowski ◽  
Tomasz Kałuski ◽  
Monika Jaskulska ◽  
Maria Kozłowska
Keyword(s):  
Chemical Compounds ◽  
High Potential ◽  
Initial Evaluation ◽  
Plant Origin ◽  
Winter Rape ◽  
Rape Plant ◽  
Arion Lusitanicus ◽  
Plant Damage ◽  
Active Substances ◽  
Rape Seedlings

Initial Evaluation of the Effectiveness of Selected Active Substances in Reducing Damage To Rape Plants Caused By Arion Lusitanicus (Gastropoda, Pulmonata, Arionidae) Spray forms of various chemical compounds including compounds of plant origin, molluscicides, and insecticides were tested in order to investigate their possibilities for reducing damage to young rape plants caused by the slug Arion lusitanicus Mabille, 1868. Among them, abamectin (0.2%), methiocarb (0.5%) and metaldehyde (1.0%) reduced damage to the plants, although metaldehyde remained active for only nine days. These three chemical compounds were not phytotoxic to rape plants, and none of them proved lethal to the slugs at the concentration used. The reduction in rape plant damage was obtained as a result of their deterrent and/or antifeedant action. The results indicate that abamectin has high potential usefulness in protecting winter rape seedlings from slugs.

Cytochemical analysis of mast cell granules after poly-dl-lysine action

1978 ◽  
Vol 36 (2) ◽  
pp. 278-279
Author(s):  
R. Courtoy ◽  
L.J. Simar ◽  
J. Christophe
Keyword(s):  
Mast Cell ◽  
Mast Cells ◽  
Chemical Compounds ◽  
Cellular Membrane ◽  
Thin Sections ◽  
Organic Bases ◽  
Ferric Thiocyanate ◽  
Cytochemical Analysis ◽  
Mast Cell Granule ◽  
Amine Liberation

Several chemical compounds induce amine liberation from mast cells but do not necessarily provoque the granule expulsion. For example, poly-dl-lysine induces modifications of the cellular membrane permeability which promotes ion exchange at the level of mast cell granules. Few of them are expulsed but the majority remains in the cytoplasm and appears less dense to the electrons. A cytochemical analysis has been performed to determine the composition of these granules after the polylysine action.We have previously reported that it was possible to demonstrate polyanions on epon thin sections using a cetylpyridinium ferric thiocyanate method. Organic bases are selectively stained with cobalt thiocyanate and the sulfhydryle groups are characterized with a silver methenamine reaction. These techniques permit to reveal the mast cell granule constituents, i.e. heparin, biogenic amines and basic proteins.

Growth of near noble metal Pd and Pt thin film silicides morphology and structure

1984 ◽  
Vol 42 ◽  
pp. 498-499
Author(s):  
E. I. Alessandrini ◽  
M. O. Aboelfotoh
Keyword(s):  
Noble Metals ◽  
Annealing Temperature ◽  
Chemical Compounds ◽  
Barrier Properties ◽  
Solid State Reactions ◽  
Transmission Electron ◽  
Stable Chemical ◽  
Metal Thickness ◽  
Amorphous Si ◽  
Si Films

Considerable interest has been generated in solid state reactions between thin films of near noble metals and silicon. These metals deposited on Si form numerous stable chemical compounds at low temperatures and have found applications as Schottky barrier contacts to silicon in VLSI devices. Since the very first phase that nucleates in contact with Si determines the barrier properties, the purpose of our study was to investigate the silicide formation of the near noble metals, Pd and Pt, at very thin thickness of the metal films on amorphous silicon.Films of Pd and Pt in the thickness range of 0.5nm to 20nm were made by room temperature evaporation on 40nm thick amorphous Si films, which were first deposited on 30nm thick amorphous Si3N4 membranes in a window configuration. The deposition rate was 0.1 to 0.5nm/sec and the pressure during deposition was 3 x 10 -7 Torr. The samples were annealed at temperatures in the range from 200° to 650°C in a furnace with helium purified by hot (950°C) Ti particles. Transmission electron microscopy and diffraction techniques were used to evaluate changes in structure and morphology of the phases formed as a function of metal thickness and annealing temperature.

Analysis of Bioactive Chemical Compounds of Trogoderma granarium (Insecta: Coleoptera: Dermestidae) Using Gas Chromatography – Mass Spectrometry

2017 ◽  
Vol 9 (03) ◽  
Author(s):  
Jenan Mohammed Ubaid ◽  
Abeer Fauzi Al-Rubaye ◽  
Imad Hadi Hameed
Keyword(s):  
Acetic Acid ◽  
Benzoyl Chloride ◽  
Methanolic Extract ◽  
Biological Activities ◽  
Chemical Compounds ◽  
Gas Chromatography Mass Spectrometry ◽  
Pentanoic Acid ◽  
Trogoderma Granarium ◽  
Trans Methyl ◽  
Phenacyl Thiocyanate

Methanolic extract of bioactive compounds of Trogoderma granarium was assayed. GC-MS analysis of Trogoderma granarium revealed the existence of the Pentanoic acid , 1,1-dimethylpropyl ester , (1H)-Pyrimidinone , 5-chloro-4,6- diphenyl, Cyclobutanemethanol , α-methyl- , Nitro-2-methyl-1,3-propanediol , Hydroxylamine ,O-(2-methylpropyl)- , Uridine , 2',3'-O-(phenylmethylene)- ,Acetic acid ,2-benzoylthio-,2-oxo-2-phenylethyl ester , methylpropyl)- , Uridine , 2',3'-O-(phenylmethylene)- , 5'-(4-methylbenzenesulfo , Indolinol , 1-benzoyl-, Benzeneethanol , β-methyl-,(s)- , Acetic acid ,2-benzoylthio-,2-oxo-2-phenylethyl ester , Phenacyl thiocyanate , Deoxy-L-ribose-2,5-dibenzoate , Methenamine , Alanine , N-methyl-n-propargyloxycarbonyl-, decyl ester , Benzoyl chloride , Thiophene-2-ol , benzoate , Ethanone , -(5- nitrotetrazol-2-yl)-1-phenyl- , 2,5-Dimethylhexane-2,5-dihydroperoxide , Benzamide , N-(3-benzylthio-1,2,4-thiadiazol- 5-yl)- , Methyl p-(2-phenyl-1-benzimidazolyl)benzoate , Methyl-2-phenoxyethylamine , Pentaborane(11) , cis-Methoxy- 5-trans-methyl-1R-cyclohexanol , Nitro-1-phenyl-3-(tetrahydropyran-2-yloxy)propan-1-one , cis-Methoxy-5-transmethyl-1R-cyclohexanol. Trogoderma granarium produce many important secondary metabolites with high biological activities.

Review on Efficacy of Herbal Antiviral Drugs against COVID-19

2020 ◽  
Vol 11 (SPL1) ◽  
pp. 1116-1121
Author(s):  
Pooja P. Thakre ◽  
Vinod Ade ◽  
Shweta Parwe
Keyword(s):  
Physical Contact ◽  
Research Articles ◽  
Herbal Drugs ◽  
Plant Origin ◽  
Respiratory Pathway ◽  
Traditional Medicines ◽  
The Past ◽  
Primary Health ◽  
Coronavirus Infection ◽  
Novel Coronavirus

Coronavirus disease (CoViD-19) is an infection of the respiratory system caused due to various viruses affects the respiratory pathway, and it can spread from one person to another by coughing, sneezing or physical contact. Commonly include cough, cold, fever are the symptoms. Viral diseases increase worldwide concern, including emerging and chronic viruses. The invention of new anti-viral drugs from plants has implicit in the past. The Coronavirus disease 19 (COVID-19) caused due to severe acute respiratory syndrome, which is a transmittable and pathogenic viral infection. Several traditional medicines of plant origin having antimicrobial and anti-inflammatory properties some have been studied for their anti-viral properties and immune-modulating effects. Herbal drugs are now in massive requirement in the developing countries for primary health care not because of their economical but also for better civilising adequacy, improved compatibility with the human body and significantly fewer side effects. This review gives an overview of some critical traditionally used medicinal herbs with anti-viral properties—the literature regarding the drugs of this group, collected from Ayurveda classics. Research articles are collected from published material and discussed per therapeutic actions. Most of the Herbs are with Katu Rasa (pungent) and Ushna Virya (hot potency). They are indicated in diseases, viz. Kasa (cough), Shwas (asthma), Krumi (worm/ infection). Krumihara property drugs which are correlated with anti-viral action helps to prevent against Novel coronavirus infection.

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