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Freitas PHSD, Conegundes JLM, Evangelista MDR, Almeida MAD, Silva NPD, Tavares GD, Vilela FMP, Duque APDN, Ribeiro A, Scio E. Cecropia pachystachya Trécul: a promising ingredient for skin-whitening cosmetics. BRAZ J PHARM SCI 2022. [DOI: 10.1590/s2175-97902022e21154] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Affiliation(s)
| | | | | | | | | | | | | | | | | | - Elita Scio
- Federal University of Juiz de Fora, Brazil
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Pinto NDCC, Maciel MDSF, Rezende NDS, Duque APDN, Mendes RDF, da Silva JB, Evangelista MDR, Monteiro LC, da Silva JM, da Costa JDC, Scio E. Preclinical studies indicate that INFLATIV, an herbal medicine cream containing Pereskia aculeata, presents potential to be marketed as a topical anti-inflammatory agent and as adjuvant in psoriasis therapy. J Pharm Pharmacol 2020; 72:1933-1945. [PMID: 32846458 DOI: 10.1111/jphp.13357] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Revised: 06/03/2020] [Accepted: 07/25/2020] [Indexed: 11/27/2022]
Abstract
OBJECTIVES A previous study reported that the hexane fraction (HF) obtained from Pereskia aculeata leaves showed promising topical anti-inflammatory activity. Intending its future use in clinical practice, a herbal medicine cream named INFLATIV was developed. Its anti-inflammatory and antipsoriatic potential were investigated. INFLATIV was subjected to preliminary accelerated stability tests and to a degradation profile assessment. METHODS INFLATIV was prepared at 6% and 12%. The anti-inflammatory activity was assessed by croton oil single and multiple application challenge in mice. Mouse tail test was used for antipsoriatic potential investigation. Cutaneous atrophy test was performed. Preliminary accelerated stability tests were performed together with a degradation profile by GC-MS analysis. KEY FINDINGS The anti-inflammatory activity shown by INFLATIV was comparable to dexamethasone. However, the skin atrophy caused by that drug was not observed. INFLATIV modified skin parakeratotic differentiation into orthokeratosis, which revealed its antipsoriatic potential. The ingredients used were suitable to carry the bioactives as they were well permeated by the skin. The preliminary accelerated stability tests indicated that INFLATIV 6% is more stable than 12%. CONCLUSIONS The results demonstrated the relevant therapeutic and marketing potentials of INFLATIV, which is likely to be further evaluated in clinical trials for drug registration process with regulatory agencies.
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Affiliation(s)
- Nícolas de Castro Campos Pinto
- Laboratory of Bioactive Natural Products, Department of Biochemistry, Institute of Biological Science, Federal University of Juiz de Fora, Juiz de Fora, MG, Brazil
| | - Mariana de Souza Ferreira Maciel
- Laboratory of Bioactive Natural Products, Department of Biochemistry, Institute of Biological Science, Federal University of Juiz de Fora, Juiz de Fora, MG, Brazil
| | - Nathalia Dos Santos Rezende
- Laboratory of Bioactive Natural Products, Department of Biochemistry, Institute of Biological Science, Federal University of Juiz de Fora, Juiz de Fora, MG, Brazil
| | - Ana Paula do Nascimento Duque
- Laboratory of Bioactive Natural Products, Department of Biochemistry, Institute of Biological Science, Federal University of Juiz de Fora, Juiz de Fora, MG, Brazil
| | - Renata de Freitas Mendes
- Laboratory of Bioactive Natural Products, Department of Biochemistry, Institute of Biological Science, Federal University of Juiz de Fora, Juiz de Fora, MG, Brazil
| | - Jucélia Barbosa da Silva
- Laboratory of Bioactive Natural Products, Department of Biochemistry, Institute of Biological Science, Federal University of Juiz de Fora, Juiz de Fora, MG, Brazil
| | - Monique de Rezende Evangelista
- Laboratory of Bioactive Natural Products, Department of Biochemistry, Institute of Biological Science, Federal University of Juiz de Fora, Juiz de Fora, MG, Brazil
| | - Luana Cahon Monteiro
- Laboratory of Bioactive Natural Products, Department of Biochemistry, Institute of Biological Science, Federal University of Juiz de Fora, Juiz de Fora, MG, Brazil
| | - Josiane Mello da Silva
- Laboratory of Bioactive Natural Products, Department of Biochemistry, Institute of Biological Science, Federal University of Juiz de Fora, Juiz de Fora, MG, Brazil
| | - Juliana de Carvalho da Costa
- Laboratory of Bioactive Natural Products, Department of Biochemistry, Institute of Biological Science, Federal University of Juiz de Fora, Juiz de Fora, MG, Brazil
| | - Elita Scio
- Laboratory of Bioactive Natural Products, Department of Biochemistry, Institute of Biological Science, Federal University of Juiz de Fora, Juiz de Fora, MG, Brazil
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Pedretti SLDC, Rena CDL, Castãnon MCMN, Duque APDN, Pereira FH, Nunes TA. Effects of dimethylsulfoxide and pentoxifylline in the vitality of cutaneous flaps in rats. ACTA ACUST UNITED AC 2018; 44:457-464. [PMID: 29019574 DOI: 10.1590/0100-69912017005006] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2017] [Accepted: 05/25/2017] [Indexed: 11/21/2022]
Abstract
OBJECTIVES to verify the influence of dimethylsulfoxide and pentoxifylline on the vitality of cutaneous flaps in rats and the tissue repair process. METHODS were studied 30 Wistar rats, submitting them to a 2cm wide by 8cm long dorsal cutaneous flap, of caudal base. We distributed the animals in three groups: Control Group (n=10) with application gauze moistened with 0.9% Saline in the flap bed for 30 seconds; Dimethylsulfoxide group (n=10), with administration of 1ml of 5% dimethylsulfoxide divided into five injections of 0.2ml in the transition of the flap segments; Pentoxifylline group (n=10), with administration of pentoxifylline 20mg/kg, diluted to 1ml and divided into five injections of 0.2ml in the transition of the flap segments. Drugs were administered intraoperatively, in a single dose and subcutaneously. We observed the skin flaps for changes in color and texture. On the 10th postoperative day, we checked the dimensions of viable and necrotic tissues, followed by excision of the specimen for histological analysis. RESULTS the measurements of length of the viable and necrotic tissues between groups showed no differences. Histological analysis showed that the Dimethylsulfoxide group presented neovascularization, inflammatory infiltrate with leukocytes and more structured conjunctival stroma. The Pentoxifylline group showed neovascularization and inflammatory infiltrate, with moderate to intense granulation. The control group evolved with a higher rate of necrosis in the distal segment. CONCLUSION dimethylsulfoxide and pentoxifylline influenced the vitality of the flap and the tissue repair process. However, they did not prevent necrosis macroscopically.
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Duque APDN, Pinto NDCC, Mendes RDF, da Silva JM, Aragão DMDO, Castañon MCMN, Scio E. In vivo wound healing activity of gels containing Cecropia pachystachya leaves. J Pharm Pharmacol 2016; 68:128-38. [DOI: 10.1111/jphp.12496] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2015] [Accepted: 10/17/2015] [Indexed: 11/29/2022]
Abstract
Abstract
Objectives
To evaluate the in-vivo wound healing and in-vitro antioxidant activity of gels containing the ethyl acetate extract of Cecropia pachystachya (ECP) 2% and 5%, and to perform the chemical fingerprint of ECP by HPLC-DAD.
Methods
The wound healing activity of the gels was evaluated for 21 days, using the excision model in rats followed by histopathological and histomorphometric analysis. The in-vitro antioxidant effect of ECP was investigated using 1-diphenyl-2-picrylhydrazyl, reducing power, β-carotene bleaching and thiobarbituric acid reactive substances assays. Also, a HPLC analysis was performed to identify the chemical markers orientin, iso-orientin and chlorogenic acid.
Key findings
The group of animals treated with ECP 5% presented oedema and inflammatory infiltrate with less intensity than the other groups. Both ECP 2% and 5% gels showed less neovascularization and cellularity, and better tissue repair when compared to the control, which showed a younger and homogeneous tissue.
Conclusions
This study had demonstrated that the ECP gels promoted the acceleration of the healing process when compared to the control group. Wound contraction, angiogenesis, epithelialization and the collagen deposition support further evaluation of C. pachystachya leaves in the topical treatment and management of skin wounds.
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Affiliation(s)
- Ana Paula do Nascimento Duque
- Laboratory of Bioactive Natural Products, Department of Biochemistry, Federal University of Juiz de Fora, Juiz de Fora, MG, Brazil
| | - Nícolas de Castro Campos Pinto
- Laboratory of Bioactive Natural Products, Department of Biochemistry, Federal University of Juiz de Fora, Juiz de Fora, MG, Brazil
| | - Renata de Freitas Mendes
- Laboratory of Bioactive Natural Products, Department of Biochemistry, Federal University of Juiz de Fora, Juiz de Fora, MG, Brazil
| | - Josiane Mello da Silva
- Laboratory of Bioactive Natural Products, Department of Biochemistry, Federal University of Juiz de Fora, Juiz de Fora, MG, Brazil
| | | | | | - Elita Scio
- Laboratory of Bioactive Natural Products, Department of Biochemistry, Federal University of Juiz de Fora, Juiz de Fora, MG, Brazil
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Pinto NDCC, Duque APDN, Pacheco NR, Mendes RDF, Motta EVDS, Bellozi PMQ, Ribeiro A, Salvador MJ, Scio E. Pereskia aculeata: A plant food with antinociceptive activity. Pharm Biol 2015; 53:1780-1785. [PMID: 26084799 DOI: 10.3109/13880209.2015.1008144] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
CONTEXT Pereskia aculeata Miller (Cactaceae) is a cactus distributed from south to northeast of Brazil, where its leaves are commonly used as a vegetable, in skin wound healing, and to treat inflammation. OBJECTIVES The objective of this study was to perform the chemical characterization and to evaluate the antinociceptive activity of the hydromethanolic fraction obtained from the methanol extract of P. aculeata leaves. MATERIALS AND METHODS Chemical characterization was performed by UPLC-MS analysis. The antinociceptive activity was evaluated by the acetic acid-induced writhing, formalin, and tail-flick tests in mice, administering the single oral doses of 100, 200, and 300 mg/kg 1 h before each test. RESULTS Tryptamine, abrine, mescaline, hordenine, petunidin, di-tert-butylphenol isomers, and quercetin were identified. The antinociceptive activity was inversely proportional to the administered doses in the acetic acid test, as the dose of 100 mg/kg reduced by 78% the number of writhings, while the doses of 200 and 300 mg/kg reduced by 64% and 41%, respectively. In the formalin test, the dose of 300 mg/kg inhibited by 50% and 86% the licking paw time in the first and second phases, respectively, while the doses of 200 mg/kg (45% and 62%, respectively) and 100 mg/kg (15% and 48%, respectively) were less effective. The sample did not respond to the tail-flick test. Those results suggested a peripheral and central antinociception devoid of an opioid effect. CONCLUSION Pereskia aculeata not only is a plant food with high nutritional value but also presents analgesic potential. It is the first time that this bioactivity is reported for this species.
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Affiliation(s)
- Nícolas de Castro Campos Pinto
- Laboratory of Bioactive Natural Products, Department of Biochemistry, Institute of Biological Science of Federal University of Juiz de Fora , Juiz de Fora, MG , Brazil and
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Tavares LS, Rettore JV, Freitas RM, Porto WF, Duque APDN, Singulani JDL, Silva ON, Detoni MDL, Vasconcelos EG, Dias SC, Franco OL, Santos MDO. Antimicrobial activity of recombinant Pg-AMP1, a glycine-rich peptide from guava seeds. Peptides 2012; 37:294-300. [PMID: 22841855 DOI: 10.1016/j.peptides.2012.07.017] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/04/2012] [Revised: 07/20/2012] [Accepted: 07/20/2012] [Indexed: 11/20/2022]
Abstract
Antimicrobial peptides (AMPs) are compounds that act in a wide range of physiological defensive mechanisms developed to counteract bacteria, fungi, parasites and viruses. These molecules have become increasingly important as a consequence of remarkable microorganism resistance to common antibiotics. This report shows Escherichia coli expressing the recombinant antimicrobial peptide Pg-AMP1 previously isolated from Psidium guajava seeds. The deduced Pg-AMP1 open reading frame consists in a 168 bp long plus methionine also containing a His6 tag, encoding a predicted 62 amino acid residue peptide with related molecular mass calculated to be 6.98 kDa as a monomer and 13.96 kDa at the dimer form. The recombinant Pg-AMP1 peptide showed inhibitory activity against multiple Gram-negative (E. coli, Klebsiella pneumonia and Pseudomonas aeruginosa) and Gram-positive (Staphylococcus aureus and Staphylococcus epidermides) bacteria. Moreover, theoretical structure analyses were performed in order to understand the functional differences between natural and recombinant Pg-AMP1 forms. Data here reported suggest that Pg-AMP1 is a promising peptide to be used as a biotechnological tool for control of human infectious diseases.
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Affiliation(s)
- Letícia Stephan Tavares
- Departamento de Biologia, Programa de Pós-Graduação em Genética e Biotecnologia, Universidade Federal de Juiz de Fora, Campus Universitário, 36036-900, Martelos, Juiz de Fora-MG, Brazil
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