Articles

2 October 2012

A Detailed Review on Novel Mucoadhesive System

About Authors:
Singh Deep Hussan*, Roychowdhury Santanu
Sri Sai college of pharmacy, badhani,
pathankot
*hussannijjar@gmail.com

Abstract:
Mucoadhesion is the prevalent interest in the design of drug delivery systems. Mucoadhesion can be defined as the state in which two materials, at least one of which is biological (mucosa) in nature, are held together for a prolonged time period by means of interfacial forces. This mucoadhesive system offers many advantages as it allows for reduction in daily administrations and daily drug dosage and is suitable for the treatment of irritation, pain, and discomfort associated with gingivitis, sore throats, laryngopharyngitis, cold, and periodontal surgery. Moreover, it adheres well to the gum and is very simple to apply, which means that patient compliance is improved. Mucoadhesive drug delivery system are designed to enable prolonged residence time of the dosage form at the site of application or absorption and facilitate an intimate contact of the dosage form with the underline absorption surface. The present review describes mucoadhesion, mucoadhesive polymers and their classification, stages, mechanism and theories of mucoadhesion and factors affecting them along with its evaluation. However, the research on mucoadhesives, is still in its early stage and further advances need to be made for the successful translation of the concept into practical application in controlled drug delivery.
20 September 2012

CHRONOPHARMACOKINETICS: THE CIRCADIAN RHYTHM OF DRUGS AND ITS IMPLICATIONS

About Authors:
N Allamneni*, CH Ajay Babu, AVS Madhulatha, C Anusha, P Sowjanya, BV Komali, M Kalyani, Syed M
*Department of Pharmaceutical Technology,
Narasaraopeta Institute of Pharmaceutical Sciences,
Narasaraopeta, Guntur, India.
*yaswanthallamneni@gmail.com

ABSTRACT
Chronopharmacokinetics involves the study of temporal changes in drug absorption, distribution, metabolism and excretion with respect to time of administration. Drug Absorption, distribution, metabolism and elimination are influenced by many different physiological functions of the body, which may vary, with time of day. Thus, the pharmacokinetic parameters characterizing these different steps, conventionally considered to be constant in time, depend on the moment of drug administration. Chronokinetic studies have been reported for many drugs in an attempt to explain chronopharmacodynamic phenomena and demonstrate that the time of administration is a possible factor of variation in the kinetics of a drug. However, the time of day has to be regarded as an additional variable influencing the kinetics of a drug since many drugs are affected by time of administration and the activity or rest period of the human or animal.
13 September 2012

EFFECT OF THIODIAZURON ON MULTIPLE SHOOT INDUCTION OF DIPLOID COTTON (G. ARBOREUM CV.PA255)

About Authors:
Nitin Deorao Rewatkar
Department of Biotechnology, Kamla Nehru College,
Sakkardara Square, Nagpur
nitinrewatkar@gmail.com

Abstract
The effect of TDZ on regeneration studies of cotton G.arboreum cv PA255 was performed for in-vitro culture studies, healthy and disease free seeds, after surface sterilization were inoculated on seed germination media. Seeds germination efficiency was observed to be 73.38%. Shoot tips and cotynode explants aseptically isolated from in Vitro germinated seedlings of 7 and 14 days old were inoculated on MS basal salt supplemented with 30 gm/L glucose, 10 mg/L thiamine, 100 mg/L Inositol with four different concentration of TDZ. The proliferation of 7 and 14 days old shoot tip was found to 100% in media combination with 0.08 TDZ and 0.02 TDZ respectively. Cotynode explants of 7 days old was 100% responded in 0.02 TDZ and 0.08 TDZ, 14 days old cotynode shows highest 85% explants responded in 0.02 TDZ media combination but multiple shoots observed higher in 0.05 TDZ medium.TDZ induces callus formation and inhibit root formation, TDZ shows good responsein very small concentration otherwise increase concentration more than 1 mg/l it shows toxic effect on explants and completely dried. Browning and subsequent death of the cultured explants are major problems in TDZ supplemented media. Calculate the amount of phenol excreted from shoot tip and cotynode during in vitro regeneration of cotton cv. PA255. In the media combination 0.1mg /L TDZ evaluate highest phenol secreted, shoot tip secrete average 0.014mg and cotynode secrete 0.022mg phenol by per explants.
30 August 2012

A GENERAL OVERVIEW ON: STRESS AND ADAPTOGENS

About Author:
Sachin Kaushik
P.G. Department of Pharmacology,
B.L.D.E.A.’s college of Pharmacy,
Bijapur- 586103, Karnataka,India.
sachin_2004_kaushik@yahoo.com

ABSTRACT
In this general overview, we discussed about stress, types of stress, mechanism and its management. According to the report of WHO, approximately 450 million people suffer from mental or behavioral disorders like stress. This amounts to 12.3% of the global burden of disease and predicted to rise up to 15% by 2020. Therefore there is a need of an effective management to control stress and stress induced disorders.
29 August 2012

siRNA TECHNOLOGY:AN EMERGING TREND IN THERAPEUTICS

About Authors:
Vaibhav Patel*, Punit Bhatnagar, Gopal Rai, Alok Pal Jain
Guru Ramdas Khalsa Institute of Science & Technology (Pharmacy),
Jabalpur
*vaibhavpatel281@gmail.com

Introduction
Gene therapy by small interfering RNAs (siRNAs) hasbeen emerging as innovative nucleic acid medicines with increasing knowledge on the molecular mechanisms of endogenous RNA interference. Gene silencingis a promising tool for the treatment of numerous human diseases that cannot be cured by rational therapies. The primary success of siRNA applications depends on suitable vectors to deliver therapeutic genes.
7 June 2012

TOPOISOMERASE

About Authors:
B. A. Baviskar¹, S. S. Khadabadi², S. L. Deore^1*, R. P.Marathe¹
¹Government College of Pharmacy, Kathora Naka,
Amravati – 444604, MS, INDIA.
²Government College of Pharmacy, Aurangabad Opp. Govt. Polytechnic, Osmanpura, Aurangabad-431005,
Maharashtra INDIA
*sharudeore_2@yahoo.com

Abstract: Topoisomerase is an enzyme that alters/regulates the super coiling of double-stranded DNA by transiently cutting one or both strands of the DNA and hence important target for anticancer activity. The present review articles is focusing a light on points like What is topoisomerase, its types, mode of action of cancer inhibition, Top-I targeted anticancer drugs, Top-II targeted anticancer drugs and Topoisomerase Cellular resistance.
4 June 2012

A Review on the role of Paclitaxel in Cancer –Mechanism & Enhanced Bioavailability

About Authors:
Raj Mukherjee^*, Koyel Sen, Dr. Ketousetuo Kuotsu^**
* Department of Pharmaceutical Technology, Jadavpur University.
** Assistant Professor,
Department of Pharmaceutical Technology,
Jadavpur University.
* rajmukhrje@gmail.com

Abstract:
“Paclitaxel” is a potent mitotic inhibitor acting as anti-neoplastic agent, obtained as complex diterpins, termed “Taxanes” from the barks of Taxus breufolia (Pacific Yew). The oral bioavailability of the drug varies around 6-7% and has a strong protein binding capacity altering between 89% - 98%. Most of these drugs have a central role in metastatic ovarian and breast carcinoma, along with advanced head and neck cancer, small cell lung cancer, esophageal adenocarcinoma, hormone refractory prostate cancer, Kaposi’s Sarcoma and also in the prevention of recurrent narrowing of Coronary Stents. Paclitaxel mainly functions by improvising enhanced stabilization of microtubule polymers during cell division and binds specifically to the beta-tubulin subunits, thus antagonizing disassembly of the key cytoskeletal protein, producing abnormal arrays of microtubules throughout the cell cycle. Due to the poor aqueous solubility there is a need for the development of alternative formulations of paclitaxel with improved solubility and at the same time devoid of major toxic effects. Various approaches employed so far include cosolvents, emulsions, micelles, liposomes, microsphere nanoparticles, cyclodextrins, pastes, and implants. All these formulations have been prepared with specific aims to enhance bio-stability and reduce the basic toxic effects of Paclitaxel including low blood count, hair loss, peripheral neuropathy, anthralgias , myalgias, nausea, vommiting, mouth sores and various hypersensitivity reactions . The drug undergoes extensive CYP-mediated hepatic metabolism (majorly CYP2C8 with specific contributions from CYP3A4), and not more than 10% of a unit dose is excreted in the urine intact. We have tried to answer the probable mechanisms of Paclitaxel and how it can be made more bio-available in order to enhance its anti-cancer activities. Our review revealed the active ingredients that are co-administered with paclitaxel did not improve its functions but blocked the pathways that decreased the function of paclitaxel, since P-glycoproteins itself reduces the accumulation of paclitaxel and might use it as a substrate.
23 April 2012

NEED OF PHARMACOECONOMICS IN INDIAN HEALTH CARE SYSTEM: A BRIEF REVIEW

About Authors:
Hinchagri S S ^1*, Halakatti P K², Devar S B², Biradar B S², Kankanwadi S K², Patil S D²
^1. HKES’s College of Pharmacy, Sedam Road, Gulbarga, Karnataka, India
^2. HSK College of Pharmacy, BVVS’s Campus, Bagalkot, Karnataka, India
*shivanand.hinchageri95@gmail.com

Abstract:
In India, nearly 3.1 million households below the poverty line and those are unaffordable for private health care. Cost of medicines are growing constantly as new medicines are marketed and are under patent law, preference of drug therapy over invasive therapy, and the irrational drug prescription. In a developing country like India 85% of total health expenditure is financed by house-hold, out-of–pocket expenditure. The proportion of insurance in health-care financing in India is very low. Many poor people frequently face a choice between buying medicines or buying food or other necessities due to limited resources and high pricing of drug. So medicine prices do matter. The main objective of study is to show the importance of pharmacoeconomic evaluation in Indian health care. Methods to be used for pharmacoeconomic evaluation are Cost-effectiveness analysis, Cost minimization analysis, Cost-benefit analysis and Cost-utility analysis. Review of pharmacoeconomic evaluation sample studies shows the pharmacoeconomics became more important 1. To find the optimal therapy at the lowest price. 2. Numerous drug alternatives and empowered consumers also fuel the need for economic evaluations of pharmaceutical products. 3. The use of economic evaluations of alternative healthcare outcomes. 4. Healthcare resources are not easily accessible and affordable to many patients; therefore pharmacoeconomic evaluations play an important role in the allocation of these resources. The study concludes that in India the pharmacoeconomic evaluation is essential to optimal therapy at lowest price, alternative treatment plans, which help the poor and middle class Indians to obtain well health care services.
6 December 2011

Natural Anticancer drugs and Recent Developments in it

About Authors:
Kaushal Chovatiya, D.R. Mundhada
Agnihotri College of Pharmacy, Wardha,
Maharashtra, India.

Abstract:
Cancer is the second leading cause of death worldwide. Conventional cancer therapies cause serious side effects and, at best, merely extend the patient’s lifespan by a few years. Cancer control may therefore benefit from the potential that resides in alternative therapies. The demand to utilize alternative concepts or approaches to the treatment of cancer is therefore escalating. There is compelling evidence from epidemiological and experimental studies that highlight the importance of compounds derived from plants “phytochemicals” to reduce the risk of colon cancer and inhibit the development and spread of tumors in experimental animals. More than 25% of drugs used during the last 20 years are directly derived from plants, while the other 25% are chemically altered natural products. Still, only 5-15% of the approximately 250,000 higher plants have ever been investigated for bioactive compounds. The advantage of using such compounds for cancer treatment is their relatively non-toxic nature and availability in an ingestive form. An ideal phytochemical is one that possesses anti-tumor properties with minimal toxicity and has a defined mechanism of action. As compounds that target specific signaling pathways are identified, researchers can envisage novel therapeutic approaches as well as a better understanding of the pathways involved in disease progression. Plant derived compounds have played an important role in the development of several clinically useful anticancer agents. Several anticancer agents including taxol, vinblastine, vincristine and topotecan are in clinical use all over the world. A number of promising agents such as combrestatin, betulinic acid and silvesterol are in clinical or preclinical development.An attempt has been made to review some medicinal plants used for the prevention and treatment of cancer and recent state of development of anticancer drugs regarding Natural Products.
10 November 2011

Review on: THE PHARMACEUTICAL PACKAGING

About Authors:
Manoj,
Shekhawati College of Pharmacy,
Dundlod

1) Introduction:
Packaging can be defined as an economical means of providing presentation, protection, identification information, containment, convenience and compliance for a product during storage, carriage, display and until the product is consumed. Packaging must provide protection against climatic conditions biological, physical and chemical hazards and must be economical. The package must ensure adequate stability of the product throughout the shelf life.¹