G. Negri | Semantic Scholar

Publications
Influence

Traditional uses, chemistry and pharmacology of Croton species (Euphorbiaceae)

A. Salatino, M. L. Salatino, G. Negri
Biology, Chemistry
2007

Pharmacological assays have frequently corroborated the traditional uses of Croton species, and a wide diversity of effects having been noticed, including hypolipidemic, hypoglycaemic, anti-oestrogen and anti-cancer.

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Brazilian red propolis: unreported substances, antioxidant and antimicrobial activities.

A. A. Righi, Thiago R Alves, G. Negri, L. M. Marques, Henrique Breyer, A. Salatino
Chemistry
Journal of the science of food and agriculture
1 October 2011

Structures are suggested for new substances never before seen in any kind of propolis, including the first report of 3,4,2',3'-tetrahydroxychalcone and a flavone C-glycoside in a propolis sample.

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Seasonal Variation, Chemical Composition and Antioxidant activity of Brazilian Propolis Samples

E. Teixeira, D. Message, G. Negri, A. Salatino, P. C. Stringheta
Chemistry, Medicine
Evidence-based complementary and alternative…
31 January 2008

No correlation was observed between antioxidant activity and either total phenolic contents or contents of artepillin C and other phenolic substances, as assayed by CG/MS analysis.

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Hydroxycinnamic acid amide derivatives, phenolic compounds and antioxidant activities of extracts of pollen samples from Southeast Brazil.

G. Negri, E. Teixeira, A. Salatino
Chemistry, Medicine
Journal of agricultural and food chemistry
27 April 2011

Antioxidant activities above 75%, based on the DPPH method, were observed for all extracts, not correlated with total phenolic contents, and those frozen were more active than samples untreated, and the samples frozen and then dried were the most active.

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Origin and Chemical Variation of Brazilian Propolis

A. Salatino, E. Teixeira, G. Negri, D. Message
Environmental Science
Evidence-based complementary and alternative…
9 February 2005

Propolis research has uncovered potentialities of substances previously isolated from plants and has detected constituents of plant origin that would hardly be known otherwise.

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Plant Origin of Green Propolis: Bee Behavior, Plant Anatomy and Chemistry

E. Teixeira, G. Negri, Renata M S A Meira, D. Message, A. Salatino
Chemistry, Medicine
Evidence-based complementary and alternative…
6 January 2005

The present work aimed to observe the collecting behavior of bees, to test the efficacy of histological analysis in studies of propolis botanical origin and to compare the chemistries of alecrim apices, resin masses and green propolis.

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Foliar epicuticular wax of Arrabidaea brachypoda: flavonoids and antifungal activity

Tatiana Alcerito, Fausto E. Barbo, Cecília T. T. Blatt
Chemistry
1 July 2002

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Antiviral Action of Hydromethanolic Extract of Geopropolis from Scaptotrigona postica against Antiherpes Simplex Virus (HSV-1)

Guilherme Rabelo Coelho, R. Mendonça, G. Negri
Biology
Evidence-based complementary and alternative…
11 March 2015

This work is the first report about the antiviral activity of geopropolis from Scaptotrigona postica, in vitro, against antiherpes simplex virus (HSV).

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Comparative Chemistry of Propolis from Eight Brazilian Localities

A. A. Righi, G. Negri, A. Salatino
Chemistry, Medicine
Evidence-based complementary and alternative…
15 April 2013

The present work represents the first report of prenylated flavonoids in Brazilian propolis and schaftoside (apigenin-8-C-glucosyl-6- C-arabinose) in green propolis.

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Aqueous Extract of Brazilian Green Propolis: Primary Components, Evaluation of Inflammation and Wound Healing by Using Subcutaneous Implanted Sponges

Sandra Aparecida Lima de Moura, G. Negri, D. C. Cara
Medicine
Evidence-based complementary and alternative…
8 June 2011

Key factors of the wound healing process are modulated by propolis constituents, indicating that key factors of that process areModulated by Propolis constituents.

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