WO 2006087759 20060824
PHARMACEUTICAL COMPOSITION COMPRISING CURCUMIN AND RESVERATROL AND USES THEREOF IN MEDICAL FIELD
The present invention deals with a pharmaceutical composition comprising curcumin and resveratrol and uses thereof in medical field. More specifically, the composition object of the invention can be advantageously employed for retarding ageing, for the prevention of vascular diseases, for the treatment and prevention of cancers as, for example, prostate carcinoma, skin diseases as psoriasis, and diseases of the piliferous system as hair loss.
Resveratrol is a polyphenol present in grapes, especially in its peel and in its seeds, but also in a plant, the Polygonum Cuspidatum. Numbers of scientific researches have shown the in vitro efficacy of the Resveratrol in reducing the proliferation of human carcinogenic cells (Annals of the New York Academy of Science 957:210-229 (2002); Anticancer Res. 2004 Sept-Oct, 24(5A):2783-840; J Urol. 2002 Aug 168(2):748-55; Biochem Pharmacol 2004 Sep 15 68(6):1113-8; Drugs exp din Res 2003 29(5-6):257-61). Moreover, the regular use of red wine in France could explain the so-called “French Paradox”, that is the low incidence of coronary diseases in French population even if its diet has a high fat content.
The researches carried out by D. Sinclair and others, published on the magazine NATURE ((2789-9/7/2004-VBCKNELL-111861), aroused great interest by considering the opportunity of a life extension in good conditions. The researches are based on data dated many years ago that showed that a controlled diet prolonged life of the Drosophila Melanogaster, even if as side effect the animal manifested drowsiness. It has been shown that the admixture of resveratrol to diet gives the same results of a controlled diet, but eliminating any negative side effect.
Moreover Sinclair, who discovered the ability of Resveratrol of prolonging the life of yeasts, tried it on fruit-flies and small worms that have biological processes similar to the human ones. He ascertained an increased activity and fertility, together with a greater egg production. Curcumin is an extract of the root of the Curcumea Longa, a plant well known since a long time for its pharmaceutical properties. Nowadays curcumin is well known for its power of reducing cholesterol, its
diuretic, choleretic, anti-inflammatory ability and for ameliorating the general conditions of patients treated with chemotherapy for neoplasia.
Particular feature of Curcumin is to belong to the capsaicinoids family, substances characterized by a pungent taste, similar to the one of pepper. From a point of view of molecular biology, the presence of a vanilloid receptor on the cell membrane and close to the mitochondrial structures can explain the induction of apoptosis or planned death of cells that would have become neoplastic. Moreover, in the Central Nervous System there are various receptors of capsaicinoids and this could explain the enhancement of the anti-aging action of resveratrol by curcumin.
The authors of the present invention, starting from the recognized anti-inflammable and anti-neoplastic action of resveratrol and curcumin, have tested two mixtures with an antioxidant action. The first one is made of basically resveratrol (called Resverage) and the other one made of resveratrol and curcumin (called Capsures). The mixtures have been packaged in capsules for oral use. At the beginning the compounds have been administered to patients with prostate carcinoma insensible to hormones. The choice of these patients depends of the fact that the evolution of neoplasia can easily be monitored by the prostate-specific antigens (PSA).
The group of patients that has assumed only resveratrol didn’t show any modification on the PSA, while the group treated with resveratrol and curcumin showed with great surprise a reduction, sometimes also relevant, in variable time periods. Moreover, during this testing, the patients treated with resveratrol and curcumin surprisingly showed positive improvements in the treatment of psoriasis and the attenuation and even a stop of the hair loss, a reduction of the hair graying and the rebirth of hair in bald areas sometimes even of the original color too. This aspect polarized the attention and the mechanism that ruled the association of the two substances became the object of the studies. The physic and pathologic basis of the action of the association of resveratrol and curcumin can be found in the relationship existing between the congenital hyposensitization of the sensory fibers of rats and the skin lesions similar to psoriatic lesions. In that case, the administration of a substance that reactivates the skin tropism would open new ways to the treatment of skin lesions.1A possible theory is that it is possible to stimulate the peripheral •
sensory fibers with tropic function by associating curcumin and resveratrol. Regarding its action on hair growth, even if not yet known, it is probably linked to the release of P substance. The growth and the pigmentation of the hair follicle would depend on mesenchymal-epithelium-neiroderic interactions not very well-known yet, where the P substance would stimulate the hair growth in vivo (RaIf Paus et al Investigation Labs, VoI 71, No 1 , p.135, 1994).
Figure 1 shows a scheme of the capsaicin-sensible sensory neuron and the localization of tackykinins (P substance and Neurokinin A) and CGRP with the receptors TRPV 1. The scheme would show the double function, afferent and efferent, of the sensorial fibers with the release of neuropeptides from the terminal like the P substance, Neurokinin A and CGRP (Calcitonin gene related peptides). Researches are progressing about the use of high dosages of Curcumin for the treatment of colon cancer, but it seems like any effect on the hair growth has been shown; Effect that instead has been obtained thanks to the administration of curcumin together with resveratrol.
Therefore, the object of the present invention is a pharmaceutical composition comprising resveratrol and/or the root of polygonum cuspidatum, containing resveratrol, and curcumin and/or root of the curcuma longa, containing curcumin, as active principles, in association with one or more adjuvant and/or excipients pharmacologically acceptable. The root of powdered polygonum cuspidatum, a plant commonly used in the traditional Chinese and Japanese medicine as circulatory tonic, is particularly rich in resveratrol. Epidemiological and in vitro studies suggest that its use reduces the incidence of cardiovascular diseases and cancers. The powdered root of Curcuma longa, a plant diffused in the oriental medicine, is very rich in active elements as curcuminoids, the elements responsible for the characteristic yellow color and probably for the anti-inflammatory, antiviral and detoxicant effects too.
According to the invention, the pharmaceutical composition can comprise also vitamin E and/or wheat germs containing vitamin E. In fact, the powdered wheat germs are one of the richest natural resources of vitamin E (or tocopherol) and are one of the most effective antioxidants against free radicals, the aggressive substances that proliferate in our body because of the action of pollution, inaccurate diets, sun or just age.
Moreover, according to the invention, the pharmaceutical composition can also comprise vitamin C and/or berries of Rosa canina containing vitamin C. In fact the powdered berry of Rosa canina is a natural source of C vitamin, important for the good functioning of the immune system and an excellent antioxidant too. The vitamin C fights any kind of infection and facilitates the repair of the connective tissue. The modern living conditions, the high level of air pollution, smoking and passive smoking, increase our need of vitamin C.
According to another embodiment of the present invention, the pharmaceutical composition can also comprise Capsaicin and/or the fruit of capsicum annum, which contains capsaicin. Capsicum annum, its powdered fruit in particular, is rich in important nutritional substances as flavonoids, vitamins (C, E, PP, and K), lecithins, mineral salts and capsaicin, an alkaloid responsible for its particular taste and for its activating properties. The extract of capsicum seems to be very effective in stimulating the vitality of the tissues and in activating the venous and capillary circulation.
In particular, in the composition according to this invention, the content of resveratrol can range from 3 to 6 mg; of Curcumin from 15 to 30 mg; of vitamin E from 50 to 100 mg; of vitamin C from 10 to 30 mg; of capsaicin from 2 to 5 mg; of powdered wheat germs from 50 to 450 mg,
• preferably from 100 to 350 mg; of powdered berries of Rosa canina from
50 to 450 mg, preferably from 100 to 350 mg; of the powdered fruit of capsicum annum from 50 to 450, preferably from 100 to 350 mg; of the powdered root of curcuma longa from 1 to 100 mg, preferably from 50 to 100 mg; of the powdered root of polygonum cuspidatum from 1 to 100 mg, preferably from 50 to 100 mg.
The abovementioned quantities are the quantities contained in one dosage unit. According to a preferred embodiment of the invention, the composition comprises Rosa canina (titrated dried extract) 10%; natural vitamin C 150.00 mg.; synthetic vitamin C 15.00 mg; Curcuma (titrated dried extract) 95%; Curcumin 20.60 mg; synthetic Curcumin 20.00 mg; Poligonum cuspidatum (titrated dried extract) 98%; resveratrol 5.10 mg; synthetic resveratrol 5.00 mg.; wheat germ oil 60.00 mg.; Capsicum (titrated dried extract) 60% in capsaicin 5.00 mg.; synthetic capsaicin 3.00 mg.
The composition according to the invention can be presented in capsules, pills, solution and emulsion. If in capsules or pills, the suggested dosage is one or two units, before meals.
Further object of the present invention is the use of the composition for the cancer treatment, in particular the treatment of prostate carcinoma. Moreover, the composition according to the invention can be advantageously employed for the treatment of skin diseases, in particular of psoriasis, for the treatment and the prevention from ageing, for the treatment and the prophylaxis of diseases .of the piliferous system, in particular of alopecia.
Another object of the present invention is a combination comprising resveratrol and curcumin for the simultaneous, separate or sequential use in the treatment of cancer, as for example, the prostate carcinoma, in the treatment of skin diseases as psoriasis and for the prevention and the treatment of alopecia.
It is understood that the abovementioned examples are just an exemplification offered to illustrate the practical usages of the invention.
The invention in fact can vary in its dosages and in its components, adding other components similar to the one suggested, but without altering the conceptual basis of the invention.
The present invention will now be described by way of information, not restrictively, in its preferred ways of presentation, with a particular reference to the attached pictures, where:
Figure 1 shows a scheme of the capsaicinoids-sensible sensory neuron, and the localization of tackykinins (substance P and Neurokinin A) and CGRP with the receptor TRPV 1.
Example 1 : Study on the effect of resveratrol and the association of resveratrol and curcumin on the prostate-specific antigen (PSA) in patients affected by prostate carcinoma, on hair growth and on psoriasis.
A composition has been prepared. It contains RESVERATROL (poligonum cuspidatum) and other antioxidants and it is called “Resverage”. Its ingredients are: Rosa canina (titrated dried extract) 10%; natural vitamin C 200.00 mg; synthetic vitamin C 20.00 mg; wheat germ oil 60.00 mg; poligonum cuspidatum (titrated dried extract) 98%; resveratrol 8.20 mg; synthetic resveratrol 8.00 mg. The administration capsules of this composition to 5 patients did not give any positive result. Thus, another
composition containing resveratrol and curcumin (Curcuma longa) has been prepared and tested on a bigger group of patients. In detail the composition was composed of:
Rosa canina (titrated dried extract) 10%, natural vitamin C 150.00 mg., synthetic vitamin C 15.00;
Curcuma (titrated dried extract) 95%, Curcumin20.60; synthetic Curcumin 20.00 mg
Poligonum cuspidatum (titrated dried extract) 98%; resveratrol 5.10 mg.; Synthetic resveratrol 5.00 mg - Wheat germ oil 60.00 mg, capsicum (titrated dried extract)
60% in capsaicin 5.00 mg; synthetic capsaicin 3.00 mg.
Ingredients: dicalcic phosphate, fruits of rosa canina (titrated dried extract) maltodextrins 10%; natural vitamin C, wheat germ oil plv titrated 40%(triticum vulgaris, modified amylum, microcrystalline cellulose, Curcuma rhizome (titrated dried extract)Curcuma Longa L. maltodextrins 95%; Curcumin, anti-agglomerative, vegetal stearate magnesium; coating agents: hydroxyl-propyl-methyl cellulose, glycerol, titanium dioxide; Capsicum fruit (titrated dried extract) [capsicum frutescens, capsicum annum) 60% in capsaicin, Poligonum Cuspidatum root (dried extract) 98%, resveratrol.
In this testing, apart from a relevant anti-cancer action on hormone-insensible prostate neoplasia, an effect on some patients has also been the stop of the hair loss and the growth of hair, sometimes of the original color too. Therefore patients without any neoplastic disease, but affected by alopecia or hair loss, have been included to the testing. MATERIALS AND METHODS
The group treated only with resveratrol didn’t show any relevant variation, except from two cases that showed a slight decrease.
Group treated with resveratrol: 5 patient, aged between 64 and 76 years old, affected by a hormone-independent prostate carcinoma have been treated with Resverage, 4 pills a day, for a period that ranged from 30 and 90 days. The basic PSA varied from 25/220 mg/ml and it has been monitored for the 15 days following the treatment period. The patients tolerated the therapy without showing any nuisance. Table n°1 shows the results obtained with the treatment with Resverage.
It is demonstrated that hair has a sensory innervation defined capsaicin-sensitive, whose characteristic is that the C-amyelinated fibers have an afferent and efferent function (see scheme of picture n°1).
Those fibers, whose nerve cell is in the posterior roots, once stimulated release neuropeptides like the P substance, Neurokinin A and the Calcitonin Gene Related Peptide (CGRP). Experimental researches demonstrated that the desensibilization of those fibers leads to skin lesions localized in the cervical region of the rat. These experiments indicate the existence of a tropic function. It is probable that the loss of hair is a result of the deficit of neuropeptides released by the fibers that innervate the scalp.
Therefore it is possible that the administration of a substance that has as activity similar to capsaicin, as the Curcumin that metabolizes like an active curcumoid, can stimulate the sensorial fibers that have a tropic function, and that resveratrol has a vehicular function on the tissues. Therefore, the composition of the present invention is active on cases of hormone-insensible prostate carcinoma but in particular on hair, as our research has proven. The efficacy of the composition according to the present invention also depends on the great lyophilic properties of a capsaicinoid, curcumin on the anti-inflammatory effect of the two substances.
The interference of the hormonal action on hair loss is unquestionable, even if capsaicinoid-sensible sensory innervations are an ancestral phenomenon that does not depend on the hormonal mechanisms, but through a metabolic way different from the ordinary one. The growth and the pigmentation of the hair follicle seem to be controlled by epitelius-mesenchimoneuroechtodermmic interactions not very well known, but with an important role of the P substance on the hair growth in vivo.