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1.
Mini Rev Med Chem ; 22(1): 89-114, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-34165408

RESUMO

The occurrence of the diabetes happens due to the irregular operation of glucose in the body, which is also known as glucose homeostasis, thus leading to metabolic changes in the body. The two stages whether hypoglycemia or hyperglycemia differentiates diabetes into various categories and brought new innovative management for the new routes of administration of these disease condition. Various bio-nanotechnologies which are coupled with nano particulates, polymers, Liposome, various gold plated and Solid Lipids Particulates regulate the transcellular transport, non specific cellular uptake, and paracellular transport, which leads to oral, transdermal, Pulmonary, buccal, Nasal, specific gene oriented administration to avoid the non patience compliance with the parental routes of administration. Phytochemicals have an emerging strategy for the future prospects of diabetes management.


Assuntos
Diabetes Mellitus , Insulina , Diabetes Mellitus/tratamento farmacológico , Glucose , Humanos , Hipoglicemiantes/uso terapêutico
2.
Int J Biol Macromol ; 191: 1046-1055, 2021 Nov 30.
Artigo em Inglês | MEDLINE | ID: mdl-34600951

RESUMO

Chitosan (CTS) functionalized Halloysite Nanotubes (HNT) have been used as receptive nano-supports for the grafting of copper (Cu) and laccase (Lac) for the degradation of chlorpyrifos. The developed nanocomposite Lac@Cu-CTS-HNT showed 83.4% Lac immobilization which was further characterized by TEM, SEM-EDX, FTIR, XRD, DSC and TGA. The chlorpyrifos degradation studies were performed under constant stirring for 24 h with both free enzyme and Lac@Cu-CTS-HNT and were analysed through HPLC. Percentage degradation of chlorpyrifos with the nanocomposite went as high as 97% for 50 µg/mL chlorpyrifos at neutral pH and room temperature. Variable pesticide and nanocomposite concentration, pH, and temperature studies for pesticide degradation were also performed, followed by reusability studies. The nanocomposite maintained its degradation ability at ~97% even at variable temperature and pH conditions. Reusability study was performed 5 times wherein the degradation percentage remained the same after 5 cycles (~<95%). Degradation kinetics were also performed for the nanocomposite in the presence and absence of the immobilized enzyme. Through this study, it is suggested that Lac@Cu-CTS-HNT can be a potential nano-catalyst for the degradation of chlorpyrifos in aqueous environment.


Assuntos
Quitosana/química , Clorpirifos/metabolismo , Argila/química , Cobre/química , Enzimas Imobilizadas/química , Lacase/metabolismo , Nanotubos/química , Catálise , Concentração de Íons de Hidrogênio , Cinética , Nanocompostos , Praguicidas , Temperatura , Fatores de Tempo
3.
J Chromatogr Sci ; 58(10): 961-968, 2020 Oct 26.
Artigo em Inglês | MEDLINE | ID: mdl-33015709

RESUMO

"Sitopaladi churna," a well-known formulation of Ayurveda, is prescribed to treat the disease like Bronchitis, Pneumonia, allergic conditions, viral infection of the respiratory tract and as a natural antioxidant. A novel method based on reversed-phase high-performance liquid chromatography (RP-HPLC) coupled to photodiode array detector was established and validated for sitopaladi churna. Here, HPLC fingerprints data obtained for 28 samples including standard sample were then treated to chemometric analysis like principal component analysis and hierarchical clustering analysis for further analysis to evaluate the differences in market samples of sitopaladi churna. Additionally, one major marker compound, piperine was quantified and it also facilitated for relative retention time. The simulative mean spectrum was also generated. The validation results showed that the developed method was simple, precise and stable. Thus, the developed chromatographic method adjoined with multivariate analysis can be used as an efficient and practical approach for quality assessment of sitopaladi churna.


Assuntos
Cromatografia Líquida de Alta Pressão/métodos , Ayurveda , Preparações de Plantas , Análise por Conglomerados , Análise Multivariada , Preparações de Plantas/análise , Preparações de Plantas/química , Preparações de Plantas/normas
4.
J Pharm Anal ; 4(3): 159-165, 2014 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-29403878

RESUMO

Forced degradation is a degradation of new drug substance and drug product at conditions more severe than accelerated conditions. It is required to demonstrate specificity of stability indicating methods and also provides an insight into degradation pathways and degradation products of the drug substance and helps in elucidation of the structure of the degradation products. Forced degradation studies show the chemical behavior of the molecule which in turn helps in the development of formulation and package. In addition, the regulatory guidance is very general and does not explain about the performance of forced degradation studies. Thus, this review discusses the current trends in performance of forced degradation studies by providing a strategy for conducting studies on degradation mechanisms and also describes the analytical methods helpful for development of stability indicating method.

5.
J Pharm Anal ; 2(4): 306-309, 2012 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-29403758

RESUMO

A novel, safe, economic and sensitive method of spectrophotometric estimation has been developed using Azeoptropic mixture (water:methanol: 60:40, v/v) for the quantitative determination of Lornoxicam, a practically water-insoluble drug. Hence, Lornoxicam stock solution was prepared in Azeoptropic mixture. Lornoxicam showed maximum absorbance at 383 nm. Beer's law was obeyed in the concentration range 4-24 µg/mL with regression coefficient of 0.999. The method was validated in terms of linearity (R2=0.999), precision (CV for intra-day and inter-day was 0.28-0.68 and 0.12-0.92, respectively), accuracy (98.03-100.59% w/w) and specificity. This method is simple, precise, accurate, sensitive and reproducible and can be used for the routine quality control testing of the marketed formulations.

6.
J Adv Pharm Technol Res ; 1(4): 368-73, 2010 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-22247875

RESUMO

Packaging is the coordinated system that encloses and protects the dosage form. Counterfeit drugs are the major cause of morbidity, mortality, and failure of public interest in the healthcare system. High price and well-known brands make the pharma market most vulnerable, which accounts for top priority cardiovascular, obesity, and antihyperlipidemic drugs and drugs like sildenafil. Packaging includes overt and covert technologies like barcodes, holograms, sealing tapes, and radio frequency identification devices to preserve the integrity of the pharmaceutical product. But till date all the available techniques are synthetic and although provide considerable protection against counterfeiting, have certain limitations which can be overcome by the application of natural approaches and utilization of the principles of nanotechnology.

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