Posted by admin on Nov 30, 2019 in |
Recent past has witnessed the promising roles of natural gums as pharmaceutical ingredients. Gums became important excipients in many pharmaceutical preparations owing to their abundance, biodegradability, non-toxicity and comparatively low cost. They have notable applications in pharmaceutical preparation as binders, disintegrants, suspending agents, emulsifiers. The use of these gums as gelling or matrix-forming agents to suit the requirement as excipient in novel drug delivery systems is one of the interesting fields of emerging research. The present article is focused on reviewing some important features of gums, their economic importance uses and pharmaceutical...
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Posted by admin on Oct 31, 2019 in |
Rubella is an eradicable illness on the grounds of immunization against it produces solid protection. The name rubella comes from the Latin language, and it means “little red”. In olden times people thought that rubella was a variant of measles. German literature first described it as a separate disease, and hence it was also called “German Measles”. People are the main reservoir of the infection. Before inoculation, rubella was endemic around the world, with plagues occurring every 6-9 years. Congenital rubella syndrome (CRS) acquires a very important place in rubella infection since it leads to a highly damaging effect on the health of newborns. It is transmitted to them by their mothers who have acquired this infection. Babies conceived every year with inborn rubella disorder is a disaster. Although, effective vaccination programs against rubella, especially in combination with immunization against measles has led to the eradication of this disease especially in developed countries like United States of America, still it is vital to recollect that having a powerful antibody...
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Posted by admin on Oct 31, 2019 in |
Alloxan diabetes mellitus (DM) simulates acute metabolic stress in a different direction, whose starting point is primary lysis of β-cells in the pancreas. Disorders in the system of the major insulin-induced regulatory mechanism occur, initiating imbalance in the system of a living organism generally. Primary changes occur on the level of metabolic ways of the cells of the pancreas and liver: redistribution of mitochondrial and microsomal processes of oxidation with possible synthesis of new isoenzymatic forms of important metabolic enzymes, disturbance of synthesis of regulatory proteins and, as a result, degenerative changes in the cellular structure (lysis, necrosis and apoptosis). Despite the numerous and even contradictory points of view, the theory of cell lysis with the increase of transaminases activity is still predominant. Cytolytic syndrome leads to the destruction of liver cells, the concentration of serum GOT increases dramatically (probably due to the mitochondrial fraction). Under conditions of alloxan-induced diabetic rat model intensification of oxidative stress processes occur provoking changes, which are typical for chronic hepatitis. Alloxan diabetes serves...
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Posted by admin on Oct 31, 2019 in |
The calcium channel blockers, a diverse group of cardiovascular drugs, exert their action by inhibiting the L-type calcium channels and cause vasodilatation in the heart and the smooth muscles. They also block the action potential at the SA and AV node, thus prolonging the duration of the action potential (Verapamil and Diltiazem). Although, the calcium channel blockers have the same anti-hypertensive actions, they have a vast difference in their pharmacological actions, pharmacokinetic profile, and adverse reactions. The main aim was to review, compare, and understand the complete pharmacological profile of all the calcium channel blockers and understand their place in pharmacotherapy. Numerous articles and studies showed that amlodipine remains to be the safe and effective drug of choice in chronic hypertension due to its slow, prolonged duration of action and lesser incidence of reflux tachycardia. The newer calcium channel blockers, although similar to amlodipine in blood pressure lowering effect, have several pharmacological advantages. Felodipine was found to be slightly better than amlodipine in the treatment of ischemia/angina due to...
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Posted by admin on Oct 31, 2019 in |
Dental caries is an infective serious transmittable bacterial disease characterized by a multi-factorial pathology. Main players in the etiology of this disease are cariogenic bacteria, fermentable carbohydrates, a susceptible tooth, the host, and the time. It is still one of the most common disease worldwide. Biological factor such as cariogenic bacteria plays an important role in dental caries initiation, progression as well as tooth decay. Previous studies suggested that the main pathogenic bacteria are Streptococcus mutans and Lactobacillus. Consequently, Lactobacillus is considered the second most cariogenic bacteria of oral flora. It is not the caries initiator but plays an important role in caries progression. Most of the previous studies were quantitative, so till now, researchers not know about the specific species of Lactobacillus which are directly associated with dental caries progression. Some species-level identification studies suggested that the most common Lactobacillus species are L. gasseeri, L. fermentum, L. vaginalis and L. casei which were predominantly reported at the most of the oral sites, i.e. saliva, tongue, carious lesion, dental...
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