@article {1813, title = {In silico Analysis of the Polyphenolic Metabolites of Zea mays L. "Purple Corn" on HMG-CoA Reductase}, journal = {Pharmacognosy Journal}, volume = {14}, year = {2022}, month = {June 2022}, pages = {549-558}, type = {Original Article}, chapter = {549}, abstract = {

This research aims to identify the polyphenolic metabolites, reported in ears and grains of Zea mays L. "purple corn" according to the current literature, with more significant interaction on HMG-CoA reductase, through in silico assays. Using the keyword combination {\textquotedblleft}Zea mays L{\textquotedblright} AND {\textquotedblleft}polyphenols{\textquotedblright}, a search was made in Google Scholar, PubMed, ScienceDirect and Scopus databases, identifying 22 polyphenolic compounds. Polyphenolic ligands and control molecules were prepared with the OpenBabel program and parameterized with AutoDock Tools. In addition, the crystallized structure of HMG-CoA reductase (1DQA) was downloaded from the Protein Data Bank database, then prepared in PyMOL and parameterized with AutoDock Tools. Molecular docking was performed in AutoDock Vina with a 100-time repetition for each ligand-target interaction. The results show that the hydrogen bonds with amino acids of importance in HMG-CoA reductase are ASN 658, ARG 590, and GLU 559. Protocatechuic acid, caffeic acid, vanillic acid, ferulic acid, p-coumaric acid, and 4-hydroxybenzoic acid presented lower affinity energy (ΔG{\textdegree}). The physicochemical and pharmacokinetic properties of the molecules with the best pharmacodynamic interaction were analyzed with the SwissADME and pkCSM servers, showing that protocatechuic, caffeic, vanillic, ferulic, p-coumaric and 4-hydroxybenzoic acids have the best physicochemical and pharmacokinetic profile. Therefore, this study gives us a clearer idea of the action of polyphenols on HMG-CoA reductase, which will allow obtaining new drug candidates for the treatment of hypercholesterolemia.

}, keywords = {Flavonoids, HMG-CoA reductase., in silico, Polyphenols, Zea mays L.}, doi = {10.5530/pj.2022.14.70}, author = {Horna-Rodriguez Alexsandra M and L{\'o}pez-Gamboa July A and Silva-Correa Carmen R and Sag{\'a}stegui-Guarniz William Antonio and Gamarra-S{\'a}nchez C{\'e}sar D and Villarreal-La Torre V{\'\i}ctor E} } @article {1364, title = {Hepatoprotective Activity of Cordia lutea Lam Flower Extracts Against Paracetamol-Induced Hepatotoxicity in Rats}, journal = {Pharmacognosy Journal}, volume = {13}, year = {2021}, month = {March 2021}, pages = {309-316}, type = {Original Article}, chapter = {309}, abstract = {

Background: Paracetamol or acetaminophen overdose leads to hepatotoxicity. This study evaluates the effect of Cordia lutea extract on paracetamol-induced hepatotoxicity in rats. Methods: Three different doses of dry fluid extract of C. lutea (200, 400 and 600 mg / Kg) were evaluated and compared with Silymarin 200 mg / Kg. Biochemical parameters such as alanine aminotransferase (ALT), aspartate aminotransferase (AST), alkaline phosphatase (ALP), direct bilirubin, indirect bilirubin, total bilirubin, albumin, globulin and total proteins were evaluated, and histopathological changes in the liver were studied and evaluated. Results: C. lutea reduced the levels of ALT, AST, ALP and increases proteins significantly, although the reduction of bilirubin was not significant, the extract at 400 mg / Kg reduced the levels better than the extract at 600 mg / Kg. The histopathological evaluation suggested that C. lutea extract reduced paracetamol-induced liver necrosis. Conclusions: The extract of C. lutea has a marked hepatoprotective effect, significantly reducing the levels of ALT, AST and ALP, in addition to increasing the levels of albumin, globulin and total proteins, in Rattus norvegicus var. albinus. C. lutea extract is an excellent candidate for use in paracetamol-induced liver diseases.

}, keywords = {Acetaminophen, Biochemical parameters, Cordia lutea, Hepatoprotection, Histopathology, Paracetamol}, doi = {10.5530/pj.2021.13.40}, author = {Ruiz-Reyes SG and Villarreal-La Torre V{\'\i}ctor E and Silva-Correa Carmen R and Sag{\'a}stegui Guarniz William Antonio and Cruzado-Razco Jos{\'e} L and Gamarra-S{\'a}nchez C{\'e}sar D and Venegas Casanova Edmundo A and Miranda-Leyva Manuel and Valdiviezo Campos Juan Ernesto and Cuellar-Cuellar Armando} } @article {1229, title = {Hepatoprotective and Nephroprotective Activity of Artemisia absinthium L. on Diclofenac-induced Toxicity in Rats}, journal = {Pharmacognosy Journal}, volume = {12}, year = {2020}, month = {August 2020}, pages = {1032-1041}, type = {Original Article}, chapter = {1032}, abstract = {

Background: Artemisia absinthium L. is known for its antimalarial activity however, hepatoprotective activity of aqueous extracts has also been reported but, nephroprotective activity not yet evaluated. Objective: To evaluate the hepatoprotective and nephroprotective activities of A. absinthium against diclofenac-induced toxicity on rats. Materials and Methods: Three different doses of methanol and ethyl acetate extract of A. absinthium (50, 100 and 200 mg/kg/day) were evaluated and compared with silymarin 100 mg/kg. Rats received these doses for 5 days and on the 3rd and 4th day diclofenac (50 mg/kg i.p.) was administered 1 h after treatment. Animals were sacrificed 48 h after the last injection of diclofenac. Biochemical blood parameters like aspartate aminotransferase (AST), alanine aminotransferase (ALT), alkaline phosphatase (ALP), urea and creatinine, and histopathologic changes of liver and kidney were studied and evaluated. Results: A. absinthium reduced the elevated blood levels of ALT, AST, ALP, urea and creatinine with the methanol extract to 200 mg/kg/day being more effective. The histopathologic evaluation suggested that A. absinthium decreased hepatic and renal necrosis induced by diclofenac. Conclusions: Hepatoprotective and nephroprotective activities of methanol and ethyl acetate extract of A. absinthium were demonstrated, being methanol extract to 200 mg/kg/day the most effective. This provides scientific support for the use of medicinal plants such as A. absinthium in the treatment of liver and kidney disorders.

}, keywords = {Artemisia absinthium, Biochemical parameters, Diclofenac, Hepatoprotective, Histopathology, Nephroprotective}, doi = {10.5530/pj.2020.12.146}, author = {Sag{\'a}stegui-Guarniz William Antonio and Silva-Correa Carmen R and Villarreal-La Torre V{\'\i}ctor E and Cruzado-Razco Jos{\'e} L and Calder{\'o}n-Pe{\~n}a Abhel A and Aspajo-Villalaz Cinthya L and Gamarra-S{\'a}nchez C{\'e}sar D and Ruiz-Reyes Segundo G and Ch{\'a}vez-Flores Juana E} } @article {1177, title = {Protection of Erythrocytes against Lipoperoxidation and Antiinflammatory Effects of Ethanolic Extract of Encelia canescens Lam Leaves in Mice}, journal = {Pharmacognosy Journal}, volume = {12}, year = {2020}, month = {June 2020}, pages = {798-804}, type = {Original Article}, chapter = {798}, abstract = {

Background: Encelia canescens Lam is a plant traditionally used in Peru for medicinal purposes, and is attributed antioxidant properties, indicating that it could be used in the prevention of non-communicable diseases. Objective: This study aims to evaluate the protection of erythrocytes from lipoperoxidation and the anti-inflammatory effect of ethanolic extract of E. canescens leaves in mice. Materials and methods: Protection from lipoperoxidation was evaluated by inhibition of hemolysis and quantifying malondialdehyde (MDA) concentration against oxidative stress induced with hydrogen peroxide (H2O2) at 200, 150, 100, 50 and 25 μg/mL E. canescens concentrations. The 1\% carrageenan-induced air pouch model was used for evaluated inflammation, where albumin, total proteins, MDA, number and leukocyte differentiation were determined in the exudate, and a histopathological evaluation was performed. The concentrations evaluated were 100, 250 and 500 mg/kg of E. canescens Results: All the concentrations evaluated protected protected erythrocytes from lipoperoxidation (p\<0.05), being E.D. value 200 μg/mL. Regarding anti-inflammatory effect, the albumin, total proteins and MDA values of the treatment groups were lower than carrageenan 1\% group (p\<0.05), but, due to less leukocyte migration and presence of macrophages and the histopathological evaluation, the E.D value was 500 mg/kg. Conclusion: Ethanolic extracts of E. canescens leaves protect erythrocytes from lipoperoxidation and have dose-dependent anti-inflammatory effects maybe for presence of p-hydroxyacetophenone-derived, and these could be new safer anti-inflammatories.

}, keywords = {Antiinflammatory, Carrageenan, Encelia canescens Lam, Hemolysis, Lipoperoxidation, Malondialdehyde}, doi = {10.5530/pj.2020.12.114}, author = {Fern{\'a}ndez-Flores N and Rojas-Cardenas NF and Vásquez-Quispe AD and Chávez-Flores Juana E and Justil-Guerrero Hugo J and Parre{\~n}o-Tipian JM and Silva-Correa Carmen R and Villarreal-La Torre V{\'\i}ctor E} }