Effect of Kinins on the Hepatic Oxidative Stress in Mice Treated with a Methionine-Choline Deficient Diet Mariana Silva Thomaz, Marcela Nascimento Sertorio, Marcos Leoni Gazarini, Daniel Araki Ribeiro, Luciana Pellegrini Pisani, et al. Biomedicines, 2023 Non-alcoholic fatty liver is the leading cause of hepatic disease worldwide and ranges from simple steatosis to non-alcoholic steatohepatitis (NASH) due to cell injury, oxidative stress, and apoptosis. The kinins’ role in the liver has been studied in experimental fibrosis, partial hepatectomy, and ischemia-reperfusion and is related to cell death and regeneration. We investigated its role in experimental NASH induced by a methionine-choline deficient diet for 4 weeks. After that, liver perfusion was performed, and bradykinin (BK) or des-Arg9-BK was infused. Cell death was evaluated by cathepsin-B and caspase-3 activity and oxidative stress by catalase (CAT), glutathione S-transferase, and superoxide dismutase (SOD) activities, as well as malondialdehyde and carbonylated proteins. In control livers, DABK increased CAT activity, which was reversed by antagonist DALBK. In the NASH group, kinins tend to decrease antioxidant activity, with SOD activity being significantly reduced by BK and DABK. Malondialdehyde levels increased in all NASH groups, but carbonylated protein did not. DABK significantly decreased cathepsin-B in the NASH group, while caspase-3 was increased by BK in control animals. Our results suggest that B1R and/or B2R activation did not induce oxidative stress but affected the antioxidant system, reducing SOD in the NASH group.
Synthesis, Structure–Activity Relationships, and Parasitological Profiling of Brussonol Derivatives as New Plasmodium falciparum Inhibitors Camila S. Barbosa, Anees Ahmad, Sarah El Chamy Maluf, Igor M. R. Moura, Guilherme E. Souza, et al. Pharmaceuticals, 2022 Malaria is a parasitic disease caused by protozoan parasites from the genus Plasmodium. Plasmodium falciparum is the most prevalent species worldwide and the causative agent of severe malaria. The spread of resistance to the currently available antimalarial therapy is a major concern. Therefore, it is imperative to discover and develop new antimalarial drugs, which not only treat the disease but also control the emerging resistance. Brussonol is an icetexane derivative and a member of a family of diterpenoids that have been isolated from several terrestrial plants. Here, the synthesis and antiplasmodial profiling of a series of brussonol derivatives are reported. The compounds showed inhibitory activities in the low micromolar range against a panel of sensitive and resistant P. falciparum strains (IC50s = 5–16 μM). Moreover, brussonol showed fast-acting in vitro inhibition and an additive inhibitory behavior when combined with the antimalarial artesunate (FICindex~1). The mode of action investigation indicated that brussonol increased the cytosolic calcium levels within the parasite. Hence, the discovery of brussonol as a new scaffold endowed with antiplasmodial activity will enable us to design derivatives with improved properties to deliver new lead candidates for malaria.
Dual quinoline-hybrid compounds with antimalarial activity against Plasmodium falciparum parasites Geraldo José da Silva Neto, Leandro Rocha Silva, Rafael Jorge Melo de Omena, Anna Caroline Campos Aguiar, Yasmin Annunciato, et al. New Journal of Chemistry, 2022 Although we have at our disposal relatively low-cost drugs that can be prescribed for the treatment of malaria, the prevalence of resistant strains of the causative parasite has required the development of new drugs.
Evaluation of the Activity of 4-Quinolones against Multi-Life Stages of Plasmodium spp. Y Annunciato, EM Da Silva, JE Araújo, LN Martinez, S Santana, ... ACS omega 10 (45), 54850-54863 , 2025 2025 Citations: 1
Fluorescent Marinoquinoline Derivative as Inhibitors of Plasmodium falciparum P Santos Barbosa, GE Souza, SEC Maluf, V Bonatto, CS Moura, ... 2025
Fluorescent Marinoquinoline Derivative as Inhibitors of Plasmodium falciparum : SAR Analysis, Mode of Action and In Vivo Studies P Santos Barbosa, GE Souza, SEC Maluf, V Bonatto, CS Moura, ... Journal of Medicinal Chemistry 68 (20), 21120-21143 , 2025 2025 Citations: 1
Captopril reduces liver cytotoxicity in a murine model of Plasmodium chabaudi infection. PD de Souza Ventura, DV de Souza, ACC Aguiar, CPF Carvalho, ... Environmental Toxicology and Pharmacology, 104801 , 2025 2025
Indole-2-carboxamides Optimization for Antiplasmodial Activity M Kumar, A Ahmad, ACC Aguiar, SEC Maluf, A Shamim, M Ferrer, ... ACS Bio & Med Chem Au 5 (5), 821-839 , 2025 2025 Citations: 3
Mode-of-action investigation of a new generation of acridine/acridonebased antimalarials SEC Maluf, GR Mendes, IMR Moura, GE Souza, V Bonatto, GS Oliveira, ... Annals , 2025 2025
Antimalarial potential of a marine sponge Tedania Ignis against plasmodium falciparum CS Moura, Y Annunciato, TBV Dantas, WGM Júnior, LRG Silva, ... 2024 Citations: 1
Effect of Kinins on the Hepatic Oxidative Stress in Mice Treated with a Methionine-Choline Deficient Diet MS Thomaz, MN Sertorio, ML Gazarini, DA Ribeiro, LP Pisani, ... Biomedicines 11 (8), 2199 , 2023 2023 Citations: 1
Fighting Plasmodium chloroquine resistance with acetylenic chloroquine analogues WA Cortopassi, E Gunderson, Y Annunciato, AES Silva, ... International Journal for Parasitology: Drugs and Drug Resistance 20, 121-128 , 2022 2022 Citations: 9
Synthesis, Structure–Activity Relationships, and Parasitological Profiling of Brussonol Derivatives as New Plasmodium falciparum Inhibitors CS Barbosa, A Ahmad, SEC Maluf, IMR Moura, GE Souza, GAH Guerra, ... Pharmaceuticals 15 (7), 814 , 2022 2022 Citations: 5
Early decrease in Cx36 is associated with increased cell adhesion molecules (CAMs) junctional content in mouse pancreatic islets after short-term high-fat diet feeding C Martinez, DA Maschio, CC de Fontes, EC Vanzela, ID Benfato, ... Annals of Anatomy-Anatomischer Anzeiger 241, 151891 , 2022 2022 Citations: 2
South American rattlesnake cationic polypeptide crotamine trafficking dynamic in Plasmodium falciparum-infected erythrocytes: Pharmacological inhibitors, parasite cycle and … SEC Maluf, MAF Hayashi, JD Campeiro, EB Oliveira, ML Gazarini, ... Toxicon 208, 47-52 , 2022 2022 Citations: 6
Chondroitin sulfate protects the liver in an experimental model of extra-hepatic cholestasis induced by common bile duct ligation PLR Guedes, CPF Carvalho, AAF Carbonel, MJ Simões, MY Icimoto, ... Molecules 27 (3), 654 , 2022 2022 Citations: 11
Effect of Brussonol on the calcium homeostasis in Plasmodium falciparum CS Barbosa, SEC Maluf, A Ahmad, IMR Moura, GE Souza, ACB Burtoloso, ... Anais eletrônicos , 2022 2022
Dual quinoline-hybrid compounds with antimalarial activity against Plasmodium falciparum parasites GJ da Silva Neto, LR Silva, RJM de Omena, ACC Aguiar, Y Annunciato, ... New Journal of Chemistry 46 (14), 6502-6518 , 2022 2022 Citations: 19
Overexpression of Plasmodium falciparum M1 Aminopeptidase Promotes an Increase in Intracellular Proteolysis and Modifies the Asexual Erythrocytic Cycle … CC Hoff, MF Azevedo, AB Thurler, SEC Maluf, PMS Melo, MA Del Rivero, ... Pathogens 10 (11), 1452 , 2021 2021 Citations: 5
Metabolites from marine sponges and their potential to treat malarial protozoan parasites infection: A systematic review ACC Aguiar, JR Parisi, RN Granito, LRF de Sousa, ACM Renno, ... Marine drugs 19 (3), 134 , 2021 2021 Citations: 25
Overexpression of Plasmodium falciparum M1 Aminopeptidase Promotes an Increase in Intracellular Proteolysis and Modifies the Asexual Erythrocytic Cycle Development. Pathogens … CC Hoff, MF Azevedo, AB Thurler, SEC Maluf, PMS Melo, MA del Rivero, ... s Note: MDPI stays neutral with regard to jurisdictional claims in published … , 2021 2021
Human plasma plasminogen internalization route in Plasmodium falciparum -infected erythrocytes S El Chamy Maluf, MY Icimoto, PMS Melo, A Budu, R Coimbra, ... Malaria Journal 19 (1), 302 , 2020 2020 Citations: 5
Decreased nuclear distribution nudE-like 1 enzyme activity in an animal model with dysfunctional disrupted-in-schizophrenia 1 signaling featuring aberrant neurodevelopment and … JV Nani, MC Fonseca, SA Engi, MG Perillo, CSB Dias, ML Gazarini, ... Journal of Psychopharmacology 34 (4), 467-477 , 2020 2020 Citations: 20
MOST CITED SCHOLAR PUBLICATIONS
Calcium-dependent modulation by melatonin of the circadian rhythm in malarial parasites. CT Hotta, ML Gazarini, FH Beraldo, FP Varotti, C Lopes, RP Markus, ... Nature cell biology 2 (7), 466-468 , 2000 2000 Citations: 228
The Plasmodium falciparum STEVOR Multigene Family Mediates Antigenic Variation of the Infected Erythrocyte M Niang, X Yan Yam, PR Preiser PLoS pathogens 5 (2), e1000307 , 2009 2009 Citations: 194
Calcium signaling in a low calcium environment: how the intracellular malaria parasite solves the problem ML Gazarini, AP Thomas, T Pozzan, CRS Garcia The Journal of cell biology 161 (1), 103-110 , 2003 2003 Citations: 193
Carotenoid biosynthesis in intraerythrocytic stages of Plasmodium falciparum R Tonhosolo, LD Fabio, VV de Rosso, ML Gazarini, MY Matsumura, ... Journal of Biological Chemistry 284 (15), 9974-9985 , 2009 2009 Citations: 106
The malaria parasite mitochondrion senses cytosolic Ca2+ fluctuations ML Gazarini, CRS Garcia Biochemical and biophysical research communications 321 (1), 138-144 , 2004 2004 Citations: 80
Plasmodium falciparum malaria parasites display a THG-sensitive Ca2+ pool FP Varotti, FH Beraldo, ML Gazarini, CRS Garcia Cell Calcium 33 (2), 137-144 , 2003 2003 Citations: 78
Inhibition of malaria parasite Plasmodium falciparum development by crotamine, a cell penetrating peptide from the snake venom SEC Maluf, C Dal Mas, EB Oliveira, PM Melo, AK Carmona, ML Gazarini, ... Peptides 78, 11-16 , 2016 2016 Citations: 76
Evidence of lysosomal membrane permeabilization in mucopolysaccharidosis type I: rupture of calcium and proton homeostasis VG Pereira, ML Gazarini, LC Rodrigues, FH Da Silva, SW Han, ... Journal of cellular physiology 223 (2), 335-342 , 2010 2010 Citations: 68
Melatonin triggers PKA activation in the rodent malaria parasite Plasmodium chabaudi ML Gazarini, FH Beraldo, FM Almeida, M Bootman, AM Da Silva, ... Journal of Pineal Research 50 (1), 64-70 , 2011 2011 Citations: 53
Sleep deprivation alters gene expression and antioxidant enzyme activity in mice splenocytes L Lungato, MS Marques, VG Pereira, S Hix, ML Gazarini, S Tufik, ... Scandinavian journal of immunology 77 (3), 195-199 , 2013 2013 Citations: 49
Cysteine-protease activity elicited by Ca2+ stimulus in Plasmodium SL Farias, ML Gazarini, RL Melo, IY Hirata, MA Juliano, L Juliano, ... Molecular and biochemical parasitology 141 (1), 71-79 , 2005 2005 Citations: 48
Human malaria parasites display a receptor for activated C kinase ortholog L Madeira, R DeMarco, ML Gazarini, S Verjovski-Almeida, CRS Garcia Biochemical and biophysical research communications 306 (4), 995-1001 , 2003 2003 Citations: 44
Treatment of Plasmodium chabaudi Parasites with Curcumin in Combination with Antimalarial Drugs: Drug Interactions and Implications on the Ubiquitin … Z Neto, M Machado, A Lindeza, V do Rosário, ML Gazarini, D Lopes Journal of Parasitology Research 2013 (1), 429736 , 2013 2013 Citations: 37
Hypervalent organotellurium compounds as inhibitors of P. falciparum calcium-dependent cysteine proteases SEC Maluf, PMS Melo, FP Varotti, ML Gazarini, RLOR Cunha, ... Parasitology international 65 (1), 20-22 , 2016 2016 Citations: 36
Interruption of the blood-stage cycle of the malaria parasite, Plasmodium chabaudi, by protein tyrosine kinase inhibitors ML Gazarini, CRS Garcia Brazilian journal of medical and biological research 36, 1465-1469 , 2003 2003 Citations: 35
KBE009: An antimalarial bestatin-like inhibitor of the Plasmodium falciparum M1 aminopeptidase discovered in an Ugi multicomponent reaction-derived peptidomimetic library J González-Bacerio, SEC Maluf, Y Méndez, I Pascual, I Florent, PMS Melo, ... Bioorganic & medicinal chemistry 25 (17), 4628-4636 , 2017 2017 Citations: 33
Intracellular proteolysis of kininogen by malaria parasites promotes release of active kinins P Bagnaresi, NMT Barros, DM Assis, PMS Melo, RG Fonseca, MA Juliano, ... Malaria journal 11 (1), 156 , 2012 2012 Citations: 33
Antimalarial drugs disrupt ion homeostasis in malarial parasites ML Gazarini, CAO Sigolo, RP Markus, AP Thomas, CRS Garcia Memorias do Instituto Oswaldo Cruz 102, 329-334 , 2007 2007 Citations: 33
Paradoxical sleep deprivation impairs mouse survival after infection with malaria parasites L Lungato, ML Gazarini, EJ Paredes-Gamero, S Tufik, V D’Almeida Malaria journal 14 (1), 183 , 2015 2015 Citations: 28
Inhibition of Plasmodium falciparum cysteine proteases by the sugarcane cystatin CaneCPI-4 PMS Melo, SEC Maluf, MF Azevedo, T Paschoalin, A Budu, P Bagnaresi, ... Parasitology international 67 (2), 233-236 , 2018 2018 Citations: 26