Grover M.,PCTE Group of Institutes |
Utreja P.,PCTE Group of Institutes
Current Drug Delivery | Year: 2014
Almost 200 million people worldwide are found to be affected by Diabetes mellitus (DM). DM is a metabolic disorder which occurs due to reduced insulin action and/or insulin secretion in the body. Reduced or inactive insulin results in imbalanced food metabolism. With the progression of disease, pathological changes like nephropathy, retinopathy and cardiovascular complications start occurring in the body. DM is mainly categorized into 2 types: type 1 DM and type 2 DM. Type 1 is generally treated through insulin replacement therapy. Type 2 DM is treated with oral hypoglycemics. Oral hypoglycemics are classified into 5 types: sulfonylureas, biguanides, α-glucosidase inhibitors, meglitinide analogues and thiazolidinediones. Conventional dosage forms of most of these drugs bear some drawbacks such as frequent dosing, short half live, and low bioavailability. Therefore, to alleviate the drawbacks associated with conventional dosage forms, efforts have been made in the area of novel and controlled drug delivery system for oral hypoglycemics. Present review highlights various novel and controlled drug delivery systems that have been investigated by different researchers for achieving sustained and controlled drug delivery of oral hypoglycemics and for overcoming the limitations related with the conventional dosage forms of oral hypoglycemics. © 2014 Bentham Science Publishers.
Saluja V.,PCTE Group of Institutes |
Sekhon B.S.,PCTE Group of Institutes
Journal of Excipients and Food Chemicals | Year: 2014
Pharmaceutical excipients are vital components of drug formulations and are generally considered pharmacologically inert. Control of excipient manufacturing and distribution is now considered a key priority by regulatory authorities and pharmaceutical manufacturers, because adulteration of pharmaceutical excipients has resulted in adverse effects in patients. Furthermore, with the emergence of novel excipients and delivery systems, better quality and supply control of pharmaceutical excipients becomes increasingly important in the context of in vivo performance. Recognizing the critical role that excipients play in pharmaceutical dosage forms necessitates that excipient suppliers meet the quality requirements of the pharmaceutical industry and the pharmaceutical industry as a whole must work to assume integrity of the supply chain. © IPEC-Americas Inc.
Gulati M.,Lovely Professional University |
Chopra D.S.,Punjabi University |
Singh S.K.,Lovely Professional University |
Saluja V.,PCTE Group of Institutes |
And 2 more authors.
Recent Patents on CNS Drug Discovery | Year: 2013
The blood-brain barrier (BBB) presents a combination of physical and electrostatic barriers. It is a highly complex structure that tightly regulates the movement of molecules from the blood to brain, protecting it from injuries and diseases. However, the BBB also significantly precludes the delivery of drugs to the brain, thus, preventing the therapy of a number of neurological disorders like brain cancer, epilepsy, Alzheimer's disease, schizophrenia etc. Numerous drug delivery strategies have been developed to circumvent this barrier. Out of those, one popular approach is the use of nanoparticles. Nanoparticles form solid, colloidal drug delivery system that consists of macromolecular materials in which the active principle is dissolved, entrapped or encapsulated or onto which the active principle is adsorbed or attached. Brain targeted polymeric nanoparticles have been found to increase the therapeutic efficacy and reduce the toxicity for a large number of drugs. By coating the nanoparticles with surfactants, higher concentrations of the drugs can be delivered. The article presents various approaches used in design and delivery of nanoparticles to brain. It also reviews various patents that describe the use of nanoparticles to deliver various neurotherapeutics to brain. © 2013 Bentham Science Publishers.
Das A.,Jadavpur University |
Roy A.,Jadavpur University |
Das R.,Jadavpur University |
Bhattacharya S.,PCTE Group of Institutes |
Haldar P.K.,Jadavpur University
Journal of Environmental Pathology, Toxicology and Oncology | Year: 2016
The present study evaluates the protective potential of the flavonoid naringenin (NRG) against experimentally induced cadmium (Cd) toxicity in Swiss albino mice. NRG (4 and 8 mg/kg) was orally administered to mice 30 min before oral administration of CdCl2 (12 mg/kg) for 11 consecutive days. On the 12th day, we evaluated body and organ weights, hematological profiles, serum biochemical profiles, and hepatic and renal tissue antioxidative parameters including lipid peroxidation, reduced and oxidized glutathione, glutathione- S-transferase, glutathione peroxidase, glutathione reductase, superoxide dismutase, and catalase. Cotreatment with NRG markedly and significantly normalized body and organ weights, hematological profiles, and serum biochemical profiles and significantly modulated all of the hepatic and renal tissue biochemical parameters in Cd-intoxicated mice. The present findings show that NRG possesses a remarkable alleviative effect against Cdinduced toxicity in albino mice, mediated by abrogation of Cd-induced oxidative stress by multiple mechanisms. © 2016 Begell House, Inc.
Kumar R.B.S.,Jadavpur University |
Kar B.,Jadavpur University |
Dolai N.,Jadavpur University |
Karmakar I.,Jadavpur University |
And 2 more authors.
Interdisciplinary Toxicology | Year: 2015
Streblus asper Lour (Moraceae), commonly known as Siamee Rough Brush in English is widely distributed in subtropical Asia and traditionally used for several medicinal purposes. In the present study, the ethyl acetate fraction of the methanol extract from Streblus asper bark (EASA) was evaluated for antitumor effect against Dalton's ascitic lymphoma (DAL) in Swiss albino mice. Twenty-four hours after intraperitoneal inoculation of DAL cells in mice, EASA was administered intraperitoneally at 200 and 400 mg/kg body weight for 9 consecutive days. On the 10th day, half of the mice were sacrificed to determine the tumor growth parameters, and the rest were kept alive for survival assessment. Hematological, serum biochemical and tissue (liver, kidney) antioxidant profiles were also determined. EASA exhibited significant and dose dependent decrease in tumor growth parameters and increased survival of DAL bearing animals. EASA significantly and dose-dependently normalized the altered hematological, serum biochemical and tissue antioxidant parameters as compared with the DAL control mice. From the present study it may be concluded that S. asper bark possesses remarkable antitumor efficacy mediated by amelioration of oxidative stress by multiple mechanisms. © 2015 Interdisciplinary Toxicology.
PubMed | PCTE Group of Institutes
Type: | Journal: Current pharmaceutical design | Year: 2016
The regulatory paradigm is relaxing gradually without compromising the safety, efficacy and the quality of the product and, most importantly, a perceptible scientific consensus is maturing towards the need of affordable medicines. The establishment of bioequivalence (BE) is no longer being considered to be accomplished only by in vivo studies in oral drug products. The potential use of in vitro dissolution testing in lieu of BE studies has now been regulatory adopted and is commonly referred to as biowaiver. Further, the advent of biopharmaceutics classification system (BCS) and in vitro-in vivo correlation (IVIVC) proves to be sound milestones and signifies that we are incessantly forwarding towards a scenario that would reduce regulatory burden, save time and make the drug products more affordable while insuring their quality. This review outlines, the current and pertinent regulatory environment for biowaiver based on in vitro drug dissolution, primarily as per the FDA prospective. The rationale used for qualification of biowaiver for different strengths, post-approval changes and multi-source products are discussed along with the role of BCS and IVIVC.
PubMed | PCTE Group of Institutes
Type: Journal Article | Journal: Current drug delivery | Year: 2015
An important step in oral drug development is to identify drug candidates that show sufficient aqueous solubility and could resist or bypass first-pass metabolism in order to overcome bioavailability problems. Aqueous solubility is characteristically low for Biopharmaceutical Classification System (BCS) class II and class IV drug candidates. Several formulation approaches are being identified to overcome the low solubility aspect of a drug candidate such as particle size manipulation, solid dispersions, inclusion complexes and several of nanoparticle-based options. However, the formulation for drug candidates that in addition to low aqueous solubility shows high intestinal and first-pass metabolism is challenging. The self-emulsifying lipid formulations (SELF) provide a mean for sidestepping these factors and improve the bioavailability of lipophilic and highly first- pass metabolised drugs. Nevertheless, formulation of a successful SELF requires an exhaustive understanding of the component used to formulate them, the behaviour of the formulation within the gastrointestinal (GI) milieu and the mechanism by which the drug is released and absorbed. This review gives a brief description of the formulation aspects of SELF and their potential role to mitigate the bioavailability problem related to lipophilic and highly first- pass metabolised drugs.
PubMed | Jadavpur University and PCTE Group of Institutes
Type: Journal Article | Journal: Journal of environmental pathology, toxicology and oncology : official organ of the International Society for Environmental Toxicology and Cancer | Year: 2016
The present study evaluates the protective potential of the flavonoid naringenin (NRG) against experimentally induced cadmium (Cd) toxicity in Swiss albino mice. NRG (4 and 8 mg/kg) was orally administered to mice 30 min before oral administration of CdCl2 (12 mg/kg) for 11 consecutive days. On the 12th day, we evaluated body and organ weights, hematological profiles, serum biochemical profiles, and hepatic and renal tissue antioxidative parameters including lipid peroxidation, reduced and oxidized glutathione, glutathione-S-transferase, glutathione peroxidase, glutathione reductase, superoxide dismutase, and catalase. Cotreatment with NRG markedly and significantly normalized body and organ weights, hematological profiles, and serum biochemical profiles and significantly modulated all of the hepatic and renal tissue biochemical parameters in Cd-intoxicated mice. The present findings show that NRG possesses a remarkable alleviative effect against Cd-induced toxicity in albino mice, mediated by abrogation of Cd-induced oxidative stress by multiple mechanisms.