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- 저자 : Joao Ernesto de Carvalho (검색결과 3 건)
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Marcia da Silva Pinto,Joao Ernesto de Carvalho,Franco Maria Lajolo,Maria Ine´s Genovese,Kalidas Shetty 한국식품영양과학회 2010 Journal of medicinal food Vol.13 No.5
Strawberries represent the main source of ellagic acid derivatives in the Brazilian diet, corresponding to more than 50% of all phenolic compounds found in the fruit. There is a particular interest in the determination of the ellagic acid content in fruits because of possible chemopreventive benefits. In the present study, the potential health benefits of purified ellagitannins from strawberries were evaluated in relation to the antiproliferative activity and in vitro inhibition of α-amylase, α-glucosidase, and angiotensin I-converting enzyme (ACE) relevant for potential management of hyperglycemia and hypertension. Therefore, a comparison among ellagic acid, purified ellagitannins, and a strawberry extract was done to evaluate the possible synergistic effects of phenolics. In relation to the antiproliferative activity, it was observed that ellagic acid had the highest percentage inhibition of cell proliferation. The strawberry extract had lower efficacy in inhibiting the cell proliferation, indicating that in the case of this fruit there is no synergism. Purified ellagitannins had high α-amylase and ACE inhibitory activities. However, these compounds had low α-glucosidase inhibitory activity. These results suggested that the ellagitannins and ellagic acid have good potential for the management of hyperglycemia and hypertension linked to type 2 diabetes. However, further studies with animal and human models are needed to advance the in vitro assay-based biochemical rationale from this study.
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Antiulcerative and Antinociceptive Activities of Casein and Whey Proteins
Wilman Carrillo,Karin Maia Monteiro,Humberto Spindola,Mercedes Ramos,Joao Ernesto de Carvalho 한국식품영양과학회 2018 Journal of medicinal food Vol.21 No.6
The aim of this study was to evaluate the antiulcerative and antinociceptive activities of milk proteins using the induced gastric ulcer with ethanol rat model and the acetic acid-induced writhing mouse model. Casein (CN), (100, 300, and 1000 mg kg−1) doses presented antiulcerative activity on a dose-dependent manner with values of 30.8%, 41.4%, and 57.0% of inhibition measured using the ulcerative lesions index (ULI), respectively. Whey protein concentrate (WPC), (100, 300, and 1000 mg kg−1) doses presented antiulcerative activity on a dose-dependent manner with values of 48.9%, 65.5%, and 68.22% of ULI inhibition, respectively. CN, casein hydrolysates (CNH), WPC, and whey protein hydrolysates (WPH), (3, 10, and 30 mg kg−1) doses presented antinociceptive activity using the acetic acid-induced writhing in the mouse model. CN (30 mg kg−1) presented a value of 40% of inhibition writhing, and CNH (30 mg kg−1) presented antinociceptive activity with a value up to 46% of writhing inhibition. WPC (30 mg kg−1) presented a value of 52.50%, and WPH (30 mg kg−1) presented antinociceptive activity with a value up to 88.00% of writhing inhibition. In conclusion, CN and WPC demonstrated in vivo antiulcerative properties and represent a promising alternative to be used as protectors of the gastric mucosa. CNH and WPH demonstrated in vivo antiulcerative properties and represent a promising alternative to be used as natural analgesic.
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Anelise S.N. Formagio,Maria do Carmo Vieira,Luiz A.C. dos Santos,Clau´dia A.L. Cardoso,Mary Anny Foglio,Joao Ernesto de Carvalho,Magaiver Andrade-Silva,Caˆndida A.L. Kassuya 한국식품영양과학회 2013 Journal of medicinal food Vol.16 No.1
The essential oil from the leaves of Annona sylvatica (EOAS) was extracted by hydrodistillation, and the analysis was performed by gas chromatography–mass spectrometry. The main compounds identified in the EOAS were sesquiterpenes, such as hinesol, z-caryophyllene, β-maaliene, γ-gurjunene, silphiperfol-5-en-3-ol, ledol, cubecol-1-epi, and muurola-3,5-diene. Oral administration of the EOAS (20 and 200 mg/kg) and subcutaneous injection of dexamethasone (0.5 mg/kg, reference drug) significantly inhibited carrageenan- and complete Freund's adjuvant–induced mouse paw edema. The anticancer activity the EOAS showed growth inhibitory activity on all cell lines when administered in a high concentration. The EOAS inhibited the growth of human cancer cell lines with GI50 values in the range of 36.04–45.37 μg/mL on all of the cell lines tested. This work describes for the first time the anti-inflammatory and anticancer effects of the essential oil of A. sylvatica and its composition. Considering that drugs currently available for the treatment of inflammatory and cancer conditions show undesirable side-effects, the present results may have clinical relevance and open new possibilities for the development of novel anti-inflammatory and anticancer drugs.
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