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Analgesic-like activity of perillyl acetate:In vivo and in silico studies

Asian Pacific Journal of Tropical Biomedicine 2022年第4期12卷 156-163页

作者： Renan Braga Humberto Andrade Ryldene Cruz Mayara Maia Carolina Lima Anderson Santos AndréMiranda Allana Duarte Marcus Scotti Reinaldo Almeida Damião Sousa Postgraduate Program in Natural and Synthetic Bioactive Products Federal University of Paraíba58051-970João PessoaPBBrazil Research Institute for Drugs and Medicines Federal University of ParaíbaCP 5009João Pessoa58051-900PBBrazil Department of Pharmaceutical Sciences Federal University of Paraíba58051-970João PessoaPBBrazil

Objective:To evaluate the antinociceptive activity of perillyl acetate in mice and in silico ***:The vehicle,perillyl acetate(100,150 and/or 200 mg/kg,i.p.),diazepam(2 mg/kg,i.p.)or morphine(6 mg/kg,i.p.)was administered to mice,*** test,acetic acidinduced abdominal writhing,formalin-induced nociception,hot plate test,and tail-flick test were *** receptorsinvolvement in perillyl acetate antinociceptive effect was also ***:Perillyl acetate did not affect the motor coordination of ***,it reduced the number of acetic acid-induced abdominal twitches and licking times in the formalin *** was an increase of latency time in the tail-flick test of 30 and *** with naloxone reversed the antinociceptive effect of perillyl acetate(200 mg/kg).In silico analysis demonstrated that perillyl acetate could bind toμ-opioid ***:Perillyl acetate has antinociceptive effect at the spinal level in animal nociception models,without affecting the locomotor integrity and possibly throughμ-opioid *** silico studies have suggested that perillyl acetate can act as aμ-opioid receptor agonist.

关键词： Analgesic Biological products Opioid Essential oil Pain Monoterpene Perillyl acetate

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Surfactant-free nano-emulsions from two lemongrass essential oils: Investigation of temperature ramp influence

Food Chemistry Advances

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Food Chemistry Advances 2023年 3卷

作者： Bezerra, Desirane C. Oliveira, Anna E.M.F.M. da Silva, Luiz E. do Amaral, Wanderlei do Nascimento, Yuri M. Tavares, Josean F. Machado, Francisco P. Fernandes, Caio P. Post-Graduate Program in Pharmaceutical Sciences Federal University of Amapá Amapá Macapá 68903-419 Brazil Laboratory of Phytopharmaceutical Nanobiotechnology Federal University of Amapá Amapá Macapá 68903-419 Brazil Post-Graduate Program in Sustainable Territorial Development Federal University of Paraná Paraná Matinhos 83260-000 Brazil Graduate Program in Natural and Synthetic Bioactive Products Health Sciences Center Federal University of Paraíba Paraíba João Pessoa 58051-900 Brazil Laboratory of Technology in Natural Products Fluminense Federal University Rio de Janeiro Niterói Brazil

Nano-emulsions are alternatives for incorporation of essential oils in food-products. Despite generation of surfactant-free nano-emulsions is well known (e.g., Ouzo effect) its stabilization is a critical issue. This study shows the behavior of surfactant-free nano-emulsions prepared with two lemongrass essential oils based in dynamic light scattering analysis through exposure to a linear ramp of temperature. The gas-chromatography coupled to mass-spectrometry analysis revealed that β-myrcene was found in the Cymbopogon citratus and absent in C. flexuosus. C. citratus nano-emulsion prepared with deionized water (CCNE-DW) presented initial lower size diameter (208.6 ± 1.9 nm) than C. flexuosus nano-emulsion (245.2 ± 3.1 nm) prepared with deionized water (CFNE-DW), probably due to the presence of β-myrcene capable of avoiding a rapid droplet growth before onset of dynamic light scattering measurements. In silico physicochemical properties suggest that β-myrcene could considered decisive for low size of C. citratus nano-emulsions, since reduction of its concentration may induce destabilization of C. citratus diluted nano-emulsions. Similar initial droplet size was observed for C. citratus nano-emulsion (221.0 ± 1.3 nm) prepared with infusion (CCNE-IN) and C. flexuosus nano-emulsion (215.7 ± 1.7 nm) prepared with infusion (CFNE-IN). The highest droplet reduction was observed for CFNE-DW (DR_25–80ºC = 45.9 %;p<0.0001). Distinct phytochemical profile evidenced by ¹H NMR, since C. citratus infusion shows an envelope of signals with more overlapped peaks between the chemical shifts at δ_H 3.5 – 4.0 ppm, may favored solubilization of droplet components by the infusion and responsible by droplet growth of diluted nano-emulsions, in addition to decrease of β-myrcene content. Our results show the feasibility of preparation of surfactant-free nano-emulsions from two lemongrass and contribute to better knowledge related to influence of chemical prof

关键词： Colloids Compositional ripening Geraniol (PubChem CID: 637566) Geranyl acetate (PubChem CID: 1549026) Linalool (PubChem CID: 6549) Monoterpenes Neral (PubChem CID: 643779) Ostwald ripening β-Myrcene (PubChem CID: 31253)

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AmIActive (AIA): A Large-scale QSAR Based Target Fishing and Polypharmacology Predictive Web Tool

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Journal of Molecular Biology 2025年第15期437卷 169090页

作者： de Morais Melo, Luis Felipe de Oliveira Filho, Luciano Pereira Ferreira, Uilames de Assis Pessoa Alves, Eduardo Henrique Oliveira Costa, Renan Paiva Scotti, Luciana Scotti, Marcus Tullius Cheminformatics Laboratory Department of Chemistry Center for Exact and Natural Sciences (CCEN) Federal University of Paraiba (UFPB) Campus I Lot. Cidade Universitaria Castelo Branco Paraiba João Pessoa Brazil Postgraduate Program in Natural and Synthetic Bioactive Products (PgPNSB) Federal University of Paraiba (UFPB) Campus I Lot. Cidade Universitaria Castelo Branco Paraiba João Pessoa Brazil

Here, we introduce AmIActive (AIA), a QSAR-based web tool for biological activity prediction and target fishing. The AIA system uses QSAR models trained with biological activity data from the ChEMBL database and currently covers single proteins, protein complexes, protein families, cell lines, organisms, and tissues. The system contains 3,239 models corresponding to 2,277 distinct targets of interest. These models are Random Forest classifiers trained with circular fingerprint descriptors, and all models have clearly defined applicability domains. The system is easy to use, with a friendly and intuitive interface. The results can be downloaded in CSV format and include predictive information, details about the target, validation metrics for the models, and the active/inactive threshold used to train the classifier. The AIA system is available free of charge and can be accessed at the following link: https://***/. © 2025 Elsevier Ltd

关键词： chemoinformatics ligand-based virtual screening machine learning reverse screening target screening

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Antifungal activity and antidiarrheal activity via antimotility mechanisms of (-)-fenchone in experimental models

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World Journal of Gastroenterology 2020年第43期26卷 6795-6809页

作者： Michelle Liz de Souza Pessoa Leiliane Macena Oliveira Silva Maria Elaine Cristina Araruna Catarina Alves de Lima Serafim Edvaldo Balbino Alves Junior Alessa Oliveira Silva Matheus Marley Bezerra Pessoa Hermes Diniz Neto Edeltrudes de Oliveira Lima Leonia Maria Batista Department of Pharmaceutical Sciences IPeFarMFederal University of ParaibaJoao Pessoa 58051-970ParaibaBrazil Health Sciences Center Federal University of ParaibaJoaoPessoa 58051-970ParaibaBrazil Postgraduate Program in Natural and Synthetic Bioactive Products Universidade Federal da ParaibaJoão Pessoa 58051-900Brazil

BACKGROUND(-)-Fenchone is a bicyclic monoterpene present in essential oils of plant species,such as Foeniculum vulgare and Peumus boldus,used to treatment of gastrointestinal *** studies report its anti-inflammatory,antioxidant,and antinociceptive *** To investigate antidiarrheal activity related to gastrointestinal motility,intestinal secretion and antimicrobial *** A castor oil-induced diarrhea model was used to evaluate antidiarrheal *** transit and gastric emptying protocols were used to assess a possible antimotility *** receptors,presynaptic α2-adrenergic and tissue adrenergic receptors,KATP channels,nitric oxide were investigated to uncover antimotility mechanisms of action and castor oil-induced enteropooling to elucidate antisecretory *** antimicrobial activity was evaluated in the minimum inhibitory concentration model,the fractional inhibitory concentration index using the(-)-fenchone association method with standard antifungal ***(-)-Fenchone(75,150 and 300 mg/kg)showed antidiarrheal activity,with a significant decrease in the evacuation *** activity is possibly related to a percentage of reduced intestinal transit(75,150 and 300 mg/kg).The antimotility effect of(-)-fenchone decreased in the presence of pilocarpine,yohimbine,propranolol,L-NG-nitroarginine methyl ester or *** the enteropooling model,no reduction in intestinal fluid weight was observed.(-)-Fenchone did not show antibacterial activity;on the other hand,inhibits the growth of strains of fungi with a minimum fungicide concentration of 32μg/***,when it was associated with amphotericin B,no synergism was *** The antidiarrheal effect of(-)-fenchone in this study involves antimotility effect and not involve antisecretory mechanisms.(-)-Fenchone presents antifungal activity;however,it did not show antibacterial activity.

关键词： (-)-Fenchone Monoterpenes Diarrhea Motility Antifungal

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Bridging the Gap: Exploring the Preclinical Potential ofPereskia grandifoliain Metabolic-Associated Fatty Liver Disease

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Evidence-Based Complementary and Alternative Medicine 2023年第1期2023卷

作者： Edilson Rodrigues Albuquerque Gustavo Ratti da Silva Fernanda de Abreu Braga Ester Pelegrini Silva Karina Sposito Negrini Julia Amanda Rodrigues Fracasso Lucas Pires Guarnier Ezilda Jacomassi João Tadeu Ribeiro-Paes Roberto da Silva Gomes Arquimedes Gasparotto Junior Francislaine Aparecida dos Reis Lívero Laboratory of Preclinical Research of Natural Products Post Graduate Program in Animal Science with Emphasis on Bioactive Products Universidade Paranaense Umuarama Brazilunipar.br Laboratory of Preclinical Research of Natural Products Paranaense University Umuarama Brazilunipar.br School of Dentistry São Paulo State University Araçatuba Brazilunesp.br Department of Genetic Ribeirão Preto Medical School University of São Paulo Ribeirão Preto São Paulo Brazilusp.br Laboratory of Preclinical Research of Natural Products Post Graduate Program in Medicinal Plants and Phytotherapeutics in Basic Attention Paranaense University Umuarama Brazilunipar.br Department of Biotechnology São Paulo State University Assis São Paulo Brazilunesp.br Department of Pharmaceutical Sciences North Dakota State University Fargo North Dakota 58102 USAndsu.edu Laboratory of Cardiovascular Pharmacology Faculty of Health Sciences Federal University of Grande Dourados Dourados Brazilufgd.edu.br Laboratory of Cardiometabolic Pharmacology Federal University of Paraná Curitiba Brazilufpr.br

Metabolic-associated fatty liver disease (MAFLD) is a complex condition characterized by steatosis and metabolic disturbances. Risk factors such as diabetes, cigarette smoking, and dyslipidaemia contribute to its development and progression. Effective and safe therapies for MAFLD are urgently needed. Pereskia grandifolia has shown potential as an alternative treatment, but its effectiveness against liver disease remains unexplored. This research aims to determine the hepatoprotective properties of P. grandifolia using a model of MAFLD. The study was carried out through various phases to assess the safety and efficacy of the ethanol-soluble fraction of P. grandifolia . Initially, an in vitro assay was performed to assess cell viability. This was followed by an acute toxicity test conducted in rats to determine the safety profile of the extract. Subsequently, the anti-inflammatory properties of P. grandifolia were examined in macrophages. For the MAFLD study, diabetic Wistar rats were made diabetic and exposed to a high fat diet and cigarette smoke, for 4 weeks. During the last 2 weeks, the rats were orally given either the vehicle (negative control group; C-), P. grandifolia (30, 100, and 300 mg/kg), or insulin in addition to simvastatin. A basal group of rats not exposed to these risk factors was also assessed. Blood samples were collected to measure cholesterol, triglycerides, glucose, ALT, and AST levels. Liver was assessed for lipid and oxidative markers, and liver histopathology was examined. P. grandifolia showed no signs of toxicity. It demonstrated anti-inflammatory effects by inhibiting phagocytosis and macrophage spreading. The MAFLD model induced liver abnormalities, including increased AST, ALT, disrupted lipid profile, oxidative stress, and significant hepatic damage. However, P. grandifolia effectively reversed these changes, highlighting its potential as a therapeutic agent. These findings emphasize the significance of P. grandifolia in mitigating hepa

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Correction to: Lentinus crinitus basidiocarp stipe and pileus: chemical composition, cytotoxicity and antioxidant activity

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European Food Research and Technology 2021年第6期247卷 1367-1367页

作者： Bertéli, Míria B. D. Oliveira Filho, Olavo B. Q. Freitas, Janyeli D. S. Bortolucci, Wanessa C. Silva, Gustavo R. Gazim, Zilda C. Lívero, Francislaine A. R. Lovato, Evellyn C. W. Valle, Juliana S. Linde, Giani A. Barros, Lillian Reis, Filipa S. Ferreira, Isabel C. F. R. Paccola-Meirelles, Luzia D. Colauto, Nelson B. Laboratory of Molecular Biology Graduate Program in Biotechnology Applied to Agriculture Universidade Paranaense Umuarama Brazil Laboratory of Preclinical Research of Natural Products Graduate Program in Medicinal Plants and Phytotherapics in Basic Attention Graduate Program in Animal Science with Emphasis on Bioactive Products Universidade Paranaense Umuarama Brazil Laboratory of Neurosciences Graduate Program in Medicinal Plants and Phytotherapics in Basic Attention Universidade Paranaense Umuarama Brazil Centro de Investigação de Montanha (CIMO) Instituto Politécnico de Bragança Bragança Portugal

A correction to this paper has been published: https://***/10.1007/s00217-021-03733-x

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P44 Carboxymethyl-glucan extracted from Saccharomyces cerevisiae induces vasodilation mediated by the NOS/NO/SCG pathway and negative inotropic effects in rats

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Biochemical Pharmacology 2017年 139卷 140-141页

作者： Renata Layne Paixão Vieira Lorena Soares Bezerra Marciane Magnani Eneas Ricardo de Morais Gomes Andrezza Miná Barbosa Natália Tabosa Machado Calzerra Priscilla Maria Pereira Maciel Maria Pereira de Assis Tays Amanda Felisberto de Silva Robson Cavalcante Veras Isac Almeida de Medeiros Graduate Program in Nutritional Sciences Health Sciences Center Federal University of Paraíba Paraíba Brazil Department of Chemical and Food Technology Technology Center Federal University of Paraíba Paraíba Brazil Graduate Program in biotechnology Departament of biotechnology Federal University of Paraíba Paraíba Brazil Graduate Program in Natural and Synthetic Bioactive Products Health Sciences Center Federal University of Paraíba Paraíba Brazil Department of Pharmaceutical Sciences Health Sciences Center Federal University of Paraíba Paraíba Brazil

Carboxymethyl-glucans are derived solubles of β-D-glucans, known to be biologically active molecules presenting immunomodulation, antioxidant and platelet anti-aggregation activity. This study evaluated the effect of carboxymethyl-glucan from Saccharomyces cerevisiae (CM-G) on vascular reactivity, investigating the mechanisms of action involved; atrial contractility and transient calcium in ventricular cardiomyocytes. Experiments were designed with healthy animals which were divided into two groups: one treated orally with CM-G at a dose of 50 mg/kg, daily, during 21 days; and another with saline solution. Afterward, experiments were carried out using an animal model of acute myocardial infarction induced by isoproterenol , in which on days 20 and 21 of the experiment were administered 85 mg/kg/day of isoproterenol by subcutaneous injection . On the 22th day, at 48 h after administration of the first isoproterenol dose, experimental tests were conducted. CM-G provoked concentration dependent vasorelaxant effect in functional endothelium vessels. This effect was significantly reduced in pre-incubated rings with L-NAME, ODQ or carboxy-PTIO. Treatment with CM-G increased the effectiveness of acetylcholine-induced relaxation. The results show that CM-G positively modulated the vascular endothelium, leading to relaxation in the rat aorta via NOS/NO/sCGs, in addition to acting on the myocardium, inducing a negative inotropic effect.

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Analysis of the Tropism and Anti-Bacterial Potential of a Type of Clay

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Open Journal of Medical Microbiology 2014年第2期4卷 140-145页

作者： Cassio Ilan Soares Medeiros Erica Renata Nogueira Sa Juliana Raquel de Morais Santos Oliveira Lis Magalhaes Geraldo Goncalves de Almeida Filho Hilzeth de Luna Freire Pessoa Graduate Student in Biomedicine Integrated College of PatosParaibaBrazil ICU Specialist Physiotherapist Integrated College of PatosParaibaBrazil Medical Student College of Santa MariaCajazeiras ParaibaBrazil MSc.in Natural and Synthetic Bioactive Products Federal University of ParaibaUFPBJoao PessoaBrazil

natural clays have been used by man in infections of bacterial etiology, since the first historical registers. Our attention turned to a red-colored clay, known in the northeast of Brazil as “barro de louça” (dish clay). These clays and other natural earth materials seem interesting to us, as the blockage of the liberation of toxins or inactivation, may be related to the interruption of infection cycles in the skin and mucous membranes. The adsorptive and absorptive properties of the mineral clays are well documented in the cure process of skin and gastrointestinal diseases. Susceptibility and bacterial tropism tests were carried out. The results were analyzed and interpreted according to the conventional microbiological protocol. The bacterial strains, Staphylococcus aureus, Escherichia coli e Pseudomonas aeruginosa, did not present a susceptibility profile to an isotonic solution of clay, but there was an increase of the bacterial tropism as the concentration of the isotonic solution was increased, being the minimal observed concentration of 100 mg/mL. Our aim is to document a type of red clay from the northeast of Brazil with possible attraction properties (Tropism) to bacteria and their toxins.

关键词： Red Clay Bacterial Tropism Bacterial Resistance

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