Journal of Pharmacy & Pharmacognosy Research: The Blog

For specialists working in the pharmaceutical and herbal fields

Detection, quantification, and investigation of the red blood cell partitioning of cryptolepine hydrochloride


Article published in Journal of Pharmacy & Pharmacognosy Research 6(4): 260-270, 2018. (PDF)

Regina A. Kwakye, Noble Kuntworbe*, Kwabena Ofori-Kwakye, Yaa A. Osei

Department of Pharmaceutics, Faculty of Pharmacy and Pharmaceutical Sciences, Kwame Nkrumah University of Science and Technology, PV Obeng Avenue, Tackie Building, PMB, Kumasi, Ghana.

*E-mail: nkunstar@yahoo.co.uk

Abstract

Context: The fight against malaria is limited by the development of resistance of Plasmodium to medication. This has led to an urgent search for alternative medicinal agents.

Aims: To determine the affinity of cryptolepine for the red blood cell.

Methods: HPLC method for the identification and quantification of cryptolepine was developed. Lipid solubility for both quinine (control) and cryptolepine was determined. Partitioning and repartitioning of cryptolepine into RBCs were studied. Time, concentration, temperature and pH were varied to see their effect on the partitioning of cryptolepine. Plasma protein binding was determined by the red blood cell partitioning method.

Results: An accurate, precise and robust HPLC method for cryptolepine hydrochloride was developed. Cryptolepine and quinine had lipophilicity of 0.91 ± 0.02 and 1.52 ± 0.27, respectively. The highest partitioning values of 2.02 ± 0.08 for cryptolepine and 0.93 ± 0.02 for quinine were obtained at 40 minutes. Concentration-dependent protein binding was observed for both compounds with cryptolepine having 0.43 and 0.38 for quinine. Partitioning was also found to be temperature dependent with the highest partitioning obtained at 370C for cryptolepine (1.56 ± 0.04) and quinine (0.78 ± 0.01). Partitioning of cryptolepine and quinine were inversely related to pH with R2 values of 0.94 and 0.96, respectively. P-values between partitioning and repartitioning for cryptolepine and quinine were 0.04 and 0.05, respectively.

Conclusions: Partitioning was found to be time, temperature, concentration and pH dependent. Partitioning was irreversible for cryptolepine and reversible for quinine. Protein binding in both cases was moderate.

Anuncios

Responder

Introduce tus datos o haz clic en un icono para iniciar sesión:

Logo de WordPress.com

Estás comentando usando tu cuenta de WordPress.com. Cerrar sesión /  Cambiar )

Google+ photo

Estás comentando usando tu cuenta de Google+. Cerrar sesión /  Cambiar )

Imagen de Twitter

Estás comentando usando tu cuenta de Twitter. Cerrar sesión /  Cambiar )

Foto de Facebook

Estás comentando usando tu cuenta de Facebook. Cerrar sesión /  Cambiar )

Conectando a %s

This site uses Akismet to reduce spam. Learn how your comment data is processed.

SCImago Journal & Country Rank

Enter your email address to follow this blog and receive notifications of new posts by email.

Únete a otros 2.359 seguidores

Flag Counter

JPPRes Sponsored Event (FAPRONATURA 2015)

Cuarto Congreso Internacional sobre Farmacología de Productos Naturales (Fapronatura 2015), 20 - 25 de Septiembre de 2015 en Topes de Collantes, Trinidad, Cuba.

Cuarto Congreso Internacional sobre Farmacología de Productos Naturales (Fapronatura 2015), 20 - 25 de Septiembre de 2015 en Topes de Collantes, Trinidad, Cuba.

Lo más 'clickado'

  • Ninguna

Sígueme en Twitter

XML JATS en Redalyc

Un modelo, miles de editores, múltiples plataformas.

BUENAS PRACTICAS FARMACEUTICAS

Buenas Prácticas Farmacéuticas Mercosur

Nutrición Vitoria

Educa tu alimentación

Desayuno con fotones

Un blog de física médica para todos los públicos

AFALU

Asociación de Familiares de Enfermos de Alzheimer y otras Demencias Neurodegenerativas de Lugo

Blog Hedonista

El placer no es bueno, ni malo, simplemente existe. Gastronomía, vinos, ocio, cultura, life style, tendencias todo es hedonismo.

Perlita1's Blog

Just another WordPress.com site

BIRRApertorio del Xino

Blog mezcla de coleccionismo cervecero con objetivos enciclopédicos y publicitarios

Francisco Goncalves - Photographer

La fotografía es la mejor compañía de las historias

Mola Saber

El blog de Carlos Pazos. Grafismos, viñetas de humor sobre ciencia, tecnología y todo lo que mola saber.

Mantenlo Simple

Minimalismo, simplicidad, sencillez e ideas para rumiar

CIÉNCIATE

Nunca antes la ciencia fue tan fácil

Al ritmo político

En sintonía con la realidad

La Ciencia es fácil.

La actualidad científica a tu alcance.

For specialists working in the pharmaceutical and herbal fields

PHARMACOSERÍAS Marketing Farmacéutico/Pharmaceutical Marketing

For specialists working in the pharmaceutical and herbal fields

A %d blogueros les gusta esto: