Optimization of noni callus induction and establishment of callus suspension system / 生物工程学报

The aim of the study was to obtain the secondary metabolites in the stem segment of noni and to establish genetic transformation system. The stem segments (no axillary buds) of noni were used as explants to induce the callus, and then to establish the cell suspension system. The factors affecting callus induction and cell suspension were studied. The results showed that the optimal culture medium for induction was MS with 1.0 mg/L 6-Benzylaminopurine (6-BA) and 0.1 mg/L 2,4-dichlorophenoxyacetic acid (2,4-D), and the optimum culture medium for suspension was MS with 1.0 mg/L 6-BA and 0.1 mg/L 2,4-D, 3% sucrose and the pH of 5.85, with the initial inoculation amount of 37.5 g/L, and the speed of 110 r/min and 25±2 °C applying darkness culture. The suspension cells grew well and showed the maximum growth rate. The growth curve of the suspension cells from the stem segment of noni was in "S-typed" trend, and it should be transformed to the fresh medium between 12 and 20 d. During the culture, the pH of the culture medium decreased and then slowly increased, and the optimum pH for the suspension cells culture of callus from noni's stem segments was 4.5-5.0. In this study, the stable cell suspension system of the stem segment of noni was successfully established.

Actividad antipirética del producto natural Noni-C en un modelo experimental en conejos / Antipyretic activity of the natural product called Noni C in an experimental rabbit model

INTRODUCCIÓN: en la medicina tradicional de Cuba se usa el fruto de la planta conocida como Noni por su efecto beneficioso sobre la salud. A esta se le atribuyen innumerables propiedades curativas. Sin embargo, no existen estudios preclínicos que demuestren el efecto antipirético y validen su uso. OBJETIVO: evaluar la actividad antipirética del producto natural Noni-C (Morinda Citrifolia Linn) en un modelo experimental en conejos. MÉTODOS: se realizó un ensayo preclínico en el Departamento de Investigaciones Médico Militares del Hospital militar "Dr. Luis Díaz Soto". Se utilizaron 30 conejos de la línea nueva Zelanda, sexo masculino y peso corporal entre 2,2 ­ 2,5 kg, distribuidos al azar en 5 grupos. Al grupo I se le inoculó Cloruro de Sodio 0,9 %, mientras que el grupo II fue tratado con ibuprofeno (100 mg/Kg). A los grupos III, IV y V se les administró Noni-C en dosis de 200, 400 y 800 mg/Kg respectivamente. Se midió temperatura basal rectal y los tiempos de una, dos, cuatro y seis horas postratamiento. Como inductor de la fiebre se utilizó una solución al 20 % de levadura desecada en cloruro de sodio al 0,9 %. El nivel de significación se fijó en p<0,05. RESULTADOS: se observó una disminución significativa de la temperatura corporal (p=0,00) a las dosis de 400 y 800 mg/Kgde N oni-C (38,5 ºC y 38,2 ºC) respectivamente, similar al del fármaco de referencia ibuprofeno, 38,5 ºC posterior a las 2 horas de haber suministrado la sustancia en estudio. Se pudo concluir que el producto natural Noni-C mostró actividad antipirética a las dosis de 400 y 800 mg/Kg administrado por vía oral.

INTRODUCTION: in the Cuban traditional folk medicine, the fruit of a plant called Noni is used because of its beneficial effects on health and attributable curative qualities. However, there are no preclinical research studies that prove the antipyretic effect of Noni and validate its use in this field. OBJECTIVE: to evaluate the antipyretic activity of the natural product Noni C (Morinda Citrifolia Linn) in an experimental rabbit model. METHODS: a preclinical assay was performed in the military medical research department of ¨Dr Luis Diaz Soto¨ military hospital. Thirty male New Zealand-line rabbits, weighed 2.2-2.5 kg and randomly distributed into 5 groups were used in the study. The first group was inoculated 0.9% sodium chloride; Group II was treated with Ibuprofen (100 mg/kg) whereas groups III, IV and V received Noni C at a dose of 200, 400 and 800 mg/kg, respectively. The basal rectal temperatures were measured at one, two, four and six hours after the treatment. The fever inducer was 0.9% sodium chloride-dried 20% yeast solution. The level of significance was set at p<0.05. RESULTS: body temperature significantly lowered with the 400 and 800 mg doses (38.5 and 38.2) respectively, similar to the figure of the reference drug Ibuprofen after two hours of administration of the substance under study. CONCLUSIONS: it was concluded that the natural product Noni-C showed its antipyretic action with the 400 and 800 mg/kg orally administered doses.

Progress on antitumor activity and its mechanisms of Morinda citrifolia / 实用肿瘤学杂志

This paper summarizes the progress on anti -tumor effect and its mechanism of Noni over the past decade.Plenty of tests indicated that noni juice , juice extracts, leaf and root extracts have anti -tumor effects.It can inhibit tumor growth through inducing tumor cell apoptosis ,activating host immune system ,inhibi-tion of angiogenesis and cyclooxygenase ,anti -oxidation and blocking carcinogen -DNA adduct formation.This paper provides a reference for the adjuvant therapy of anticancer drugs and food form Noni .