Scopri l'Aloe Vera con MondoAloe.IT
Ricerche e Brevetto dell'Università di Padova
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L'Aloe è da sempre impiegata dall'uomo per i suoi molteplici effetti benefici. Per questa pianta, come per altre, il presunto effetto anti-cancro era stato dichiarato più volte ma sino a poco tempo fa, non erano emersi studi che rispondessero a severi criteri scientifici e che dimostrassero una sua efficacia sull'uomo.
Nelle ricerche condotte dalla Dott.ssa Teresa Pecere e il suo gruppo, nel laboratorio diretto dal Prof. Giorgio Palù, ed in collaborazione con il Prof. Modesto Carli, del Dipartimento di Pediatria, AE (aloe-emodina) si è dimostrata molto attiva contro le cellule dei tumori che originano dal sistema nervoso autonomo, cioè quello che innerva tutti gli organi del nostro corpo, quali il melanoma, il tumore a piccole cellule del polmone e neuroblastoma.
Il neuroblastoma è un tumore che colpisce solo i bambini ed è la prima causa di morte in età prescolare nel mondo industrializzato.
Nelle ricerche della Dott.ssa Teresa Pecere su cellule coltivate in laboratorio è stato dimostrato che AE "seleziona" le cellule da colpire (quelle del neuroblastoma, in particolare) e non aggredisce le cellule sane. Questo significa che questa molecola è "tumore-specifica", cioè colpisce solamente le cellule del tumore e risparmia le cellule sane, ma in rapida replicazione come le cellule del tratto gastro-intestinale e del midollo osseo.
Una volta dimostrata la selettività d'azione in vitro, gli studi proseguirono sugli animali da laboratorio.
Nei topi AE ha dimostrato una buona farmacocinetica, la capacità di bloccare la crescita del tumore unita ad una scarsa tossicità.
Con queste ricerche, isolando antroni e antrachinoni (aloe-emodina, emodina, crisofenolo e diversi altri), presenti nell'aloina, si è dimostrato che i principi attivi contenuti nell'aloe si accumulano nelle cellelule tumorali, aggredendo selettivamente le cellule malate.
La notizia ha destato l'interesse del mondo scientifico, così tanto da fondare A.R.A. (Associazione Ricerca Aloe), con l'intento di studiare questa pianta ed i suoi effetti terapeutici nella lotta contro i tumori.
A.R.A. è presieduta dal professor Roberto Miccinilli, che da oltre venti anni si occupa di omeopatia all'Università di Londra.
Il professor
Giuseppe D'Alessio, direttore del Dipartimento di Chimica Organica e Biologica dell'Università Federico II di Napoli, ha effettuato, per conto dell'associazione, alcune ricerche sugli effetti dell'Aloe Arborescens.
Testata più volte, l'aloe ha dimostrato di essere in grado di aggredire le cellule tumorali, preservando nel contempo quelle sane.
A conferma di questi dati, il ricercatore americano David Hudson ha scoperto che uno stato particolare, monoatomico, di rodio e iridio possiede notevoli facoltà terapeutiche, che si sono dimostrate efficaci in casi di cancro.
Una sua ricerca ha dimostrato che tali sostanze sono presenti in notevoli quantità nell'Aloe Arborescens.
Di seguito due documenti che evidenziano che l'aloe-emodina induce l'apoptosi delle cellule malate in vari tipi di cancro.
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"Aloe Emodin apoptosis in human epatoma", Po-Lin Kuo(a), Ta-Chen Lin(b), Chun-Ching Lin(a), (a) Graduate Institute of Natural Products, College of Pharmacy, Kaohsiung Medical University, Kaohsiung 807, Taiwan, ROC - (b) Department of Pharmacy, Ta-Jen Institute of Technology, Ping-Tung 907, Taiwan, ROC
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"Aloe Emodin induces apoptosis in human carcinoma", Hong-Zin Lee, School of Pharmacy, China Medical College, 91, Hsueh-Shih Road, Taichung, 404, Taiwan
Dopo aver accertato che la molecola aloe-emodina presente nell'aloe, influisce sulle masse tumorali, l'università di Padova ha brevettato la molecola.
Un articolo scritto dalla Dott.ssa Teresa Pecere, intitolato "Alla ricerca di nuovi farmaci", che spiega il proprio lavoro di ricerca
[Leggi l'articolo]
Lista delle sperimentazioni
Pubblicazioni MEDLINE EXPRESS
Aloe-emodin Is a New Type of Anticancer Agent with Selective Activity against Neuroectodermal Tumors
Hydroxyanthraquinones as Tumor Promoters: Enhancement of Malignant Transformation of C3H Mouse Fibroblasts and Growth Stimulation of Primary Rat Hepatocytes
Chemopreventive effects of Aloe arborescens on N-nitrosobis(2-oxopropyl)amine-induced pancreatic carcinogenesis in hamsters.
The effect of aloe emodin on the proliferation of a new merkel carcinoma cell line.
Inhibition of azoxymethane-induced aberrant crypt foci formation in rat colorectum by whole leaf Aloe arborescens Miller var. natalensis Berger.
Effects and mechanisms of aloe-emodin on cell death in human lung squamous cell carcinoma.
Cytotoxic and DNA damage-inducing activities of low molecular weight phenols from rhubarb.
Protein kinase C involvement in aloe-emodin- and emodin-induced apoptosis in lung carcinoma cell.
Chemomodulatory action of Aloe vera on the profiles of enzymes associated with carcinogen metabolism and antioxidant status regulation in mice.
Studies of aloe. VI. Cathartic effect of isobarbaloin.
Induction of apoptosis in human leukaemic cell lines K562, HL60 and U937 by diethylhexylphthalate isolated from Aloe vera Linne.
Anti-leukaemic and anti-mutagenic effects of di(2-ethylhexyl)phthalate isolated from Aloe vera Linne.
Aloe-emodin is a new type of anticancer agent with selective activity against neuroectodermal tumors.
Adverse and beneficial effects of plant extracts on skin and skin disorders.
Acemannan purified from Aloe vera induces phenotypic and functional maturation of immature dendritic cells.
Decreased mortality of Norman murine sarcoma in mice treated with the immunomodulator, Acemannan.
The therapeutic potential of Aloe Vera in tumor-bearing rats.
Aloe vera: a systematic review of its clinical effectiveness.
Management of psoriasis with Aloe vera extract in a hydrophilic cream: a placebo-controlled, double-blind study.
Effect of Aloe vera leaves on blood glucose level in type I and type II diabetic rat models.
The effect of a plants mixture extract on liver gluconeogenesis in streptozotocin induced diabetic rats.
Aloe-Emodin quinone pretreatment reduces acute liver injury induced by carbon tetrachloride.
Vitamin C and aloe vera supplementation protects from chemical hepatocarcinogenesis in the rat.
Decreased levels of 2-amino-3-methylimidazo[4,5-f]quinoline-DNA adducts in rats treated with beta-carotene, alpha-tocopherol and freeze-dried aloe.
Inhibition of benzo[a]pyrene-DNA adduct formation by Aloe barbadensis Miller.
The effect of a plants mixture extract on liver gluconeogenesis in streptozotocin induced diabetic rats.
Biotherapy with the pineal immunomodulating hormone melatonin versus melatonin plus aloe vera in untreatable advanced solid neoplasms.
Chemopreventive effects of Aloe arborescens on N-nitrosobis(2-oxopropyl)amine-induced pancreatic carcinogenesis in hamsters.
The plant kingdom as a source of anti-ulcer remedies.
Acemannan hydrogel dressing versus saline dressing for pressure ulcers. A randomized, controlled trial.
The effect of aloe vera gel/mild soap versus mild soap alone in preventing skin reactions in patients undergoing radiation therapy.
Studies on chemical radioprotectors against X-irradiation used by soft X-ray accelerator
Acemannan-containing wound dressing gel reduces radiation-induced skin reactions in C3H mice.
Characterization of Aloeride, a new high-molecular-weight polysaccharide from Aloe vera with potent immunostimulatory activity.
In vivo metabolism of aloemannan.
Prevention of ultraviolet radiation-induced suppression of contact hypersensitivity by Aloe vera gel components.
Aloe barbadensis extracts reduce the production of interleukin-10 after exposure to ultraviolet radiation.
Prevention of ultraviolet radiation-induced suppression of accessory cell function of Langerhans cells by Aloe vera gel components.
Hematopoietic augmentation by a beta-(1,4)-linked mannan.
Prevention of ultraviolet radiation-induced suppression of contact and delayed hypersensitivity by Aloe barbadensis gel extract.
Anthraquinones in Rheum palmatum and Rumex dentatus (Polygonaceae), and phorbol esters in Jatropha curcas (Euphorbiaceae) with molluscicidal activity against the schistosome vector snails Oncomelania, Biomphalaria and Bulinus.
The wound-healing effect of a glycoprotein fraction isolated from aloe vera.
Therapeutic effects of Aloe vera on cutaneous microcirculation and wound healing in second degree burn model in rats.
Influence of Aloe vera on collagen turnover in healing of dermal wounds in rats.
Influence of aloe vera on the healing of dermal wounds in diabetic rats.
Influence of Aloe vera on the glycosaminoglycans in the matrix of healing dermal wounds in rats.
Effect of the combination of Aloe vera, nitroglycerin, and L-NAME on wound healing in the rat excisional model.
Beneficial effect of Aloe on wound healing in an excisional wound model.
Isolation and characterization of the glycoprotein fraction with a proliferation-promoting activity on human and hamster cells in vitro from Aloe vera gel.
Hematopoietic augmentation by a beta-(1,4)-linked mannan.
Studies on optimal dose and administration schedule of a hematopoietic stimulatory beta-(1,4)-linked mannan.
Effect of aloe vera gel to healing of burn wound a clinical and histologic study.
Treatment of experimental frostbite with pentoxifylline and aloe vera cream.
Aloe vera, hydrocortisone, and sterol influence on wound tensile strength and anti-inflammation.
Anti-inflammatory and wound healing activity of a growth substance in Aloe vera.
Effect of aloe-emodin on expression of proliferating cell nuclear antigen of vascular smooth muscle cells in culture after arterial injury.
Effect of aloe-emodin on proliferation of vascular smooth muscle cells after arterial injury
Aloe vera and the inflamed synovial pouch model.
Efficacy of crude extract of Aloe secundiflora against Salmonella gallinarum in experimentally infected free-range chickens in Tanzania.
Evaluation of the efficacy of the crude extract of Aloe secundiflora in chickens experimentally infected with Newcastle disease virus.
Aloe polymannose enhances anti-coxsackievirus antibody titres in mice.
Lichen planus--report of successful treatment with aloe vera.
The action of an aqueous extract of Aloe barbadensis Miller in an in-vitro culture of Trichomonas vaginalis]
Inactivation of enveloped viruses by anthraquinones extracted from plants.
In vivo macrophage activation in chickens with Acemannan, a complex carbohydrate extracted from Aloe vera.
In vitro chemopreventive effects of plant polysaccharides (Aloe barbadensis miller, Lentinus edodes, Ganoderma lucidum and Coriolus versicolor).
Activation of a mouse macrophage cell line by acemannan: the major carbohydrate fraction from Aloe vera gel.
Nitric oxide production by chicken macrophages activated by Acemannan, a complex carbohydrate extracted from Aloe vera.
Isolation of a stimulatory system in an Aloe extract.
Inhibitory mechanism of aloe single component (alprogen) on mediator release in guinea pig lung mast cells activated with specific antigen-antibody reactions.
Initial characterization of the effects of Aloe vera at a crayfish neuromuscular junction.
Antiinflammatory activity of Muktashukti bhasma.
Antiinflammatory activity of extracts from Aloe vera gel.
Antiinflammatory C-glucosyl chromone from Aloe barbadensis.
Isolation of a stimulatory system in an Aloe extract.
The isolation of an active inhibitory system from an extract of aloe vera.
Phenolic constituents of Cassia seeds and antibacterial effect of some naphthalenes and anthraquinones on methicillin-resistant Staphylococcus aureus.
Aloe-emodin effects on arylamine N-acetyltransferase activity in the bacterium Helicobacter pylori.
Antifungal activity of anthraquinone derivatives from Rheum emodi.
Antifungal effects of different plant extracts and their major components of selected aloe species.
Saprophytic and cycloheximide resistant fungi isolated from golden hamster.
Upregulation of phagocytosis and candidicidal activity of macrophages exposed to the immunostimulant acemannan.
The effectiveness and acceptance of a medical device for the treatment of aphthous stomatitis. Clinical observation in pediatric age
Oxoaporphine alkaloids and quinones from Stephania dinklagei and evaluation of their antiprotozoal activities.
Isolation and identification of a phenolic antioxidant from Aloe barbadensis.
Antioxidant and radical scavenging effects of anthraquinones and anthrones.
Chemomodulatory action of Aloe vera on the profiles of enzymes associated with carcinogen metabolism and antioxidant status regulation in mice.
Sennosides and aloin do not promote dimethylhydrazine-induced colorectal tumors in mice.
The genotoxicity status of senna.