Posted by admin on Apr 1, 2014 in |
Thuja occidentalis called the tree of life is an endemic plant in eastern North America and cultivated in northern Europe and in Brazil as ornamental tree. According to the popular use of this plant has been used in herbal and homeopathic preparations for acute and chronic infections of the upper respiratory tract, warts, as adjunctive antibiotic, immunostimulant. However, these and other data are old or unavailable, and in view of the therapeutic potential of the species, it was necessary to upgrade the recently published studies and not included in previous reviews about the botanical, pharmacological, toxicological and technological aspects. In this review article, it was noted that for many years the phytochemistry studies on the species concentrated their efforts around essential oils, highlighting the monoterpene thujone, which is attributed to the pharmacological and toxicological activities. Recently, preclinical studies have identified the presence of polysaccharides, flavonoids, tannins and proteins in the ethanol fraction, which showed antioxidant, hepatoprotective, antitumor, hypolipidemic, antidiabetic and antiulcerative activity. The clinical studies proving its immunostimulant and...
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Posted by admin on Apr 1, 2014 in |
Since Dr. Tsuneji Nagai of Hoshi University, Japanin the early 1980’s used the concept of bio adhesion for the delivery of insulin across the buccal mucosa in beagle dogs; several researchers tried a large number of drugs for administration through buccal mucoadhesive dosage forms. The potential of these dosage forms have been found to be tremendous because of their ability to improve the bioavailability of many such drugs by bypassing the hepatic first pass metabolism. Because of the growing number of newer molecules in the form of peptides and proteins, the research in this field has gained the centre stage for the non-invasive drug delivery as an alternative to parenteral route. The novel design of the buccal delivery system can be achieved by the help of polymers of synthetic and natural polymers. The purpose of this review article is to establish the developments and highlight the importance of mucoadhesive buccal delivery for low bio available...
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Posted by admin on Mar 1, 2014 in |
Liver, the largest gland functioning as an organ of storage, manufacturing and biotransformation is a vulnerable target for injury. Chronic alcohol consumption, exposure to toxic chemicals and certain drugs like paracetamol, tetracycline, antitubercular drugs, chemotherapeutic agents, NSAIDS, damage the liver cells (hepatocytes) in long run. Drug induced liver injury is a major health problem, the manifestations of which are highly variable, ranging from asymptomatic elevation of liver enzymes to fulminant liver failure. Modern medicine has provided us many drugs that alleviate liver diseases but compared to it herbal medicine is preferred because the latter is cost effective and considered to be a safe approach for treatment with minimal side effects. Through the decades many scientists, researchers have reported hepatoprotective activity of many medicinal plants mostly in the form of plant extracts. The present review is aimed at compiling data on different medicinal plants with hepatoprotective activity on various models of...
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Posted by admin on Mar 1, 2014 in |
A toxic substance is one which can produce its adverse effects in biological systems by interfering with their structure and function, which may lead to mortality. From the biological point of view, it can be consider that no chemical is either completely safe or harmful .The safe or harmful nature of toxic substance depends on the doses, duration and the time when animal is exposed to the particular toxic substance. Susceptibility to toxicant often depends on developmental stage. There are critical period of development during pre and postnatal time and a particular structure or function will be most sensitive to disturbance during its critical period. Developmental toxicants are agents that cause adverse effects on the development of new progeny. Recently the developmental toxicology has become an increasingly significant area of toxicology and encompasses the study of hazard and risk associated with exposure to toxicants during pre and postnatal development. It has been expanded by the U.S Environmental Protection Agency to include effects on the developmental process in the course...
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Posted by admin on Mar 1, 2014 in |
The chemistry of β-lactams has taken an prestigious place in organic and medicinal chemistry so the review on recent methods in the synthesis of 2-Azetidinone derivatives rendered as a lead molecule for designing potential bioactive agents and it accompanying additional various synthetic information and its orientations would encompass great deal of help to researchers, chemists and pharmacologists to make it the best, most productive, economical and medicinal important compounds which will be expected to show potent pharmacological activities. In future it would be useful to design different new drugs to bring in the market by using rapid, operationally simple, efficient and green procedure. This has led to the discovery of a wide variety of compounds that are of high interest from the point of view antibacterial, anti-inflammatory, antihyperlipidemic, CNS activity, anticancer, antimicrobial, pesticidal, cytotoxic, antidiabetic, antitumor, antifungal, antitubercular...
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