Antineoplastic Agent: Chemotherapeutic Treatment to Fight against Cancer

A neoplasm or tumor is a abnormal mass of tissue, the growth of which exceeds and is uncoordinated with that of the normal tissue and continues in the same manner after cessation of the stimuli which have initiated it. A malignant tumor grows rapidly and continuously, and even when it has impoverished its host and source of nutrition, still retains the potentiality for further proliferation. Besides, malignanat tumors invade and destroys neighbouring tissues and possess no effective capsule, a malignant tumors readily ulcerate and tend sooner or later dessiminate and form metastases.Copyright © www.iiste.org Key-Word:- neoplasm, stimuli, malignant tumor, metastases

Design and Development of Niosomal Delivery System for Ketoprofen

Niosomes are efficient carriers for controlled drug delivery, to entrap hydrophilic drugs in the larger interior aqueous layer, whereas, lipophilic drugs in the outer lipid bilayers. Since, the niosomes are biodegradable and non toxic and hence, a good carrier for targeting of therapeutic agents at the site of interest with reduced systemic toxicity. The film formation method was used for the preparation of the niosomes due to simplicity, reproducibility and high drug entrapment efficiency. The various ratios of Surfactant (Span 60) Cholesterol and Dicetyl phosphate (DCP) were used for the preparation of the niosomes. The molar ratio of 47.5:47.5:5 was found to be most suitable in terms of niosomal size drug entrapment efficiency and in vitro drug release. The average size of niosomes was observed as 4.5 µ m with drug entrapment efficiency of 62.4%. The in vitro drug release study was carried out using dialysis membrane in Phosphate buffer saline (PBS, pH 7.4) for 24 hrs.  The result showed a cumulative drug release of 98% in 8 hrs. from the free drug, against 92% drug release in 24 hrs. With optimized niosomal formulation. The optimized niosomal formulation showed a sustained action of about 16 hrs was subjected to in vivo studies (anti-inflammatory activity). This formulation was found to be more effective in reducing edema after 2 hrs as compared to the free drug.  Copyright © www.iiste.org Key-word: - Niosomes, biodegradable, film formation method, drug entrapment efficiency, dialysis membrane

A study on wheat grass and its Nutritional value

Wheat Grass refers to the young grass of the common wheat plant, Triticum aestivum that is freshly juiced or dried into powder for animal and human consumption. Both provide chlorophyll, amino acids, minerals, vitamins, and enzymes. Wheat grass is a humble weed that is a powerhouse of nutrients and vitamins for the human body. In the form of fresh juice, it has high concentrations of chlorophyll, active enzymes, vitamins and other nutrients. Copyright © www.iiste.org Key-Word: - Wheat Grass, human consumption, Triticum aestivum, enzymes, vitamins, nutrients

Microsphere: An Overview

A plastic compound used in some dermal fillers for the correction of wrinkles that are filled with a substance and released as the shell disintegrates Controlled release delivery Biodegradable microspheres are used to control drug release rates thereby decreasing toxic side effects, and eliminating the inconvenience of repeated injections. Microparticulate carrier system can be administered through different routes such as i.v,ocular,i.m,oral,intra arterial.etc.Each routes has it's own biological significance, limitation & pharmaceutical feasibility. Keywords: wrinkles, Biodegradable microspheres, Microparticulate, injections, control drug release.Â

Ischaemic Heart Disease: An Overview to Heart Disease

Ischaemic Heart Disease is a condition that affects the supply of blood to the heart. The blood vessels are blocked due to the deposition of cholesterol plaques on their walls. This reduces the supply of oxygen and nutrients to the heart musculature, which is essential for proper functioning of the heart. This may eventually result in a portion of the heart being suddenly deprived of its blood supply leading to the death of that area of heart tissue, resulting in heart attack. In 1963 the Ministry of Railways carried out a survey with a view to ascertaining the number of deaths due to ischimic heart disease among railway populations in different parts of the country. The method employed was to obtain data from all the railway zones on a proforma based on W.H.O. classification 420, for arteriosclerotic, including coronary heart disease. The epidemiology studies have provided several key points of information related to the risk of developing IHD. First, several specific risk factors for IHD have been identified. Second, evidence that these factors are closely related to environmental and life-style changes implies that risk factors are potentially alterable. Third, these studies have stimulated further consideration and investigation of the basic mechanism of atherosclerosis. Angiographic studies have indicated a direct relationship between the risk factors and the severity of coronary disease. Copyright © www.iiste.org Key-Word:- Ischaemic Heart Disease, oxygen, nutrient, W.H.O. epidemiology

DEVELOPMENT AND VALIDATION OF NOVEL SPECTROPHOTOMETRIC METHODS FOR SIMULTANEOUS ESTIMATION OF PIOGLITAZONE AND METFORMIN IN BULK AND FIXED DOSAGE FORMS BY AREA UNDER CURVE AND DUAL WAVELENGTH MODE

Objective: Two simple, accurate and reproducible spectrophotometric methods have been developed and validated for simultaneous estimation of metformin (MET) and pioglitazone (PIO) in bulk and tablet dosage forms. Methods: (1) Area under curve method (Area calculation): The proposed area under the curve method involves measurement of area at selected wavelength ranges. Two wavelength ranges were selected 228-238 nm and 265-275 nm for estimation of MET and PIO respectively. (2) Dual wavelength method: In the dual-wavelength method, two wavelengths were selected for each drug in a way so that the difference in absorbance is zero for another drug. PIO shows equal absorbance at 235 and 266 nm, where the difference in absorbance was measured for determination of MET. Similarly, the difference in absorbance at 216 and 241.5 nm was measured for determination of MET. Results: Linearity range for MET and PIO is 2-10 μg/ml and 10-50 μg/ml at respective selected wavelengths. Accuracy and precision studies were carried out, and results were satisfactory. The proposed methods have been validated as per ICH guidelines and successfully applied to the estimation of MET and PIO in their combined tablet dosage form. Conclusion: The developed methods are simple, precise, rugged and economical. The utility of the methods has been demonstrated by analysis of commercially available formulations. Keywords: Metformin, Pioglitazone, Area under curve method, Dual wavelength metho

DIFFERENCE SPECTROPHOTOMETRIC METHOD FOR SIMULTANEOUS ESTIMATION OF MOXIFLOXACIN AND CEFIXIME TRIHYDRATE IN BULK AND COMBINED DOSAGE FORM

Objective: To develop rapid, accurate, reproducible, validated and economical difference spectroscopy method for the simultaneous determination of moxifloxacin (MFN) and cefixime (CEF) in tablet dosage forms.Methods: The method comprised the measurement of the absorbance of a solution of the tablet extract in 0.1 M NaOH relative to that of an equimolar solution in 0.1 M HC1 at 254 nm for MFN and 292 nm for CEF. The presence of identical isosbestic points for pure drug solutions and tablet extracts indicated the non-interference of excipients in the absorption at these wavelengths.Results: The method was found to be linear over the concentration range of 10-50 μg/ml for CEF and 4-20 μg/ml for MFN. Accuracy was found to be in the range of 99.91-101.18%. Relative standard deviation for precision and intermediate precision was found to be less than 2%. The developed method was successfully applied for the simultaneous estimation of Moxifloxacin and Cefixime in tablet formulation. The results obtained from the validation experiments prove that the developed method is suitable for routine analysis.Conclusion: This method is simple, selective, linear, precise, and accurate and sensitive hence can be successfully employed for the routine quality control of dosage forms containing both the drugs in pharmaceutical industries.Â

Simultaneous estimation of Amino acids by using HPLC

Various methods for the individual as well as simultaneous estimation of amino acids using various techniques like HPLC and other way outs like electrophoresis have been described in this review paper. The amino acid determination by using HPLC can either be done by using pre-column or post column derivatization. The amino acid is first derivatized into a particular derivative and then is analysed into the column in the case of pre-column derivatization, whereas in the case of post column derivatization, the amino acid is first passed through the column for the sake of separation and then the separated amino acids are derivatized into their such derivatives which can be detected by fluorescence detector. Out of the above two mentioned techniques, pre-column derivatization is used more oftenly than the post column derivatization. Few of the most commonly used derivatization agents are phenylisothiocyanate, o-phthalaldehyde+2-mercaptoethanol, dansyl chloride, phenylthiohydantoin etc

Niosome: The Magic Bullet

Target oriented drug delivery systems are the areas of the major interest in the modern pharmaceutical research. The selective drug delivery to the target tissues increases the therapeutic efficacy of the drug and reduces its undesirable effect to non target tissues.The concept of drug targeting or site specific drug delivery was introduced first time by Paul Elrich in 1909, when he reported magic bullet to deliver a drug to the desired site of action without affecting the non target organs or tissues (Juliano, 1980) by associating the drug with a pharmacologically “inactive carrier capable of conveying the drug selectively towards its target cells. Niosomes or nonionic surfactant vesicles are microscopic lamellar structures formed on admixture of nonionic surfactant of the alkyl or dialkyl polyglycerol ether class and cholesterol with subsequent hydration in aqueous media. In niosomes, the vesicles forming amphiphile is a nonionic surfactant such as span 60 which is usually stabilized by addition of cholesterol and small amount of anionic surfactant such as dicetyl phosphate. Niosomes can entrap both hydrophilic and lipophilic drugs, either in aqueous layer or in vesicular membrane made of lipid materials. It is reported to attain better stability than liposomes. It can prolong the circulation of the entrapped drugs. Because of the presence of nonionic surfactant with the lipid, there is better targeting of drugs to tumour, liver and brain. It may prove very useful for targeting the drug for treating cancers, parasitic, viral and other microbial disease more effectively. Key-Words: magic bullet, Target oriented drug delivery systems, inactive carrier, Niosome, site specific drug delivery, liposomes, cancers

Niosome: A Novel Drug Delivery System

The concept of drug targeting or site specific drug delivery was introduced first time by Paul Elrich in 1909, when he reported magic bullet to deliver a drug to the desired site of action without affecting the non target organs or tissues (Juliano, 1980) by associating the drug with a pharmacologically inactive carrier capable of conveying the drug selectively towards its target cells. The main goal of a site specific drug delivery system is not only to increase the selectivity and drug therapeutic index, but also to reduce the toxicity of the drug