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  1. Article ; Online: Recent Advances in Drug Discovery and Treatment of Neglected Diseases.

    Lago, João H G / Domingues Passero, Luiz Felipe

    Current topics in medicinal chemistry

    2022  Volume 22, Issue 19, Page(s) 1593–1594

    MeSH term(s) Drug Discovery ; Humans ; Neglected Diseases/drug therapy
    Language English
    Publishing date 2022-09-12
    Publishing country United Arab Emirates
    Document type Editorial
    ZDB-ID 2064823-6
    ISSN 1873-4294 ; 1568-0266
    ISSN (online) 1873-4294
    ISSN 1568-0266
    DOI 10.2174/156802662219220728162323
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Synthesis, characterization, and cytotoxic effects of new copper complexes using Schiff-base derivatives from natural sources.

    Gomes, Rafael N / Silva, Matheus L / Gomes, Kaio S / Lago, João H G / Cerchiaro, Giselle

    Journal of inorganic biochemistry

    2023  Volume 250, Page(s) 112401

    Abstract: Copper(II) complexes are interesting for cancer treatment due to their unique properties, including their redox potential, possible coordination structures with different ligands, the most diverse geometries, and different biomolecule reactivity. The ... ...

    Abstract Copper(II) complexes are interesting for cancer treatment due to their unique properties, including their redox potential, possible coordination structures with different ligands, the most diverse geometries, and different biomolecule reactivity. The present work synthesized new copper(II) complexes with Schiff-base (imine) type ligands using natural aldehydes such as cinnamaldehyde, vanillin, or ethyl vanillin. The ligands were obtained through the reaction of these aldehydes with the amines 1,3-diaminopropane, 2,2-dimethyl-1,3-propanediamine, or 1,3-diamino-2-propanol and characterized by
    MeSH term(s) Humans ; Copper/chemistry ; Neuroblastoma ; Magnetic Resonance Spectroscopy ; Acrolein/pharmacology ; Schiff Bases/chemistry ; Coordination Complexes/chemistry ; Ligands
    Chemical Substances Copper (789U1901C5) ; cinnamaldehyde (SR60A3XG0F) ; Acrolein (7864XYD3JJ) ; Schiff Bases ; Coordination Complexes ; Ligands
    Language English
    Publishing date 2023-10-14
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 162843-4
    ISSN 1873-3344 ; 0162-0134
    ISSN (online) 1873-3344
    ISSN 0162-0134
    DOI 10.1016/j.jinorgbio.2023.112401
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Selective cytotoxicity of ent-kaurene diterpenoids isolated from Baccharis lateralis and Baccharis retusa (Asteraceae).

    Silva, Matheus L / Oliveira, Cyntia S / Dos Santos, Wagner J O / Oliveira, Vani X / Antar, Guilherme M / Lago, João H G / Cerchiaro, Giselle

    Archiv der Pharmazie

    2022  Volume 355, Issue 8, Page(s) e2200083

    Abstract: This study presents the cytotoxic activity evaluation of the natural diterpenes ent-kaurenoic acid (1) and its 15β-hydroxy (2), 15β-senecioyloxy (3), and 15β-tiglinoyloxy (4) derivatives, isolated from Brazilian native plants, Baccharis retusa and B. ... ...

    Abstract This study presents the cytotoxic activity evaluation of the natural diterpenes ent-kaurenoic acid (1) and its 15β-hydroxy (2), 15β-senecioyloxy (3), and 15β-tiglinoyloxy (4) derivatives, isolated from Brazilian native plants, Baccharis retusa and B. lateralis (Asteraceae). Using the MTT (3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide) colorimetric assay, it was observed that compound 1 displayed in vitro activity towards the aggressive MDA-MB-231 adenocarcinoma cell line and reduced toxicity against MCF-10A nontumorigenic epithelial cells, indicating expressive selectivity. On the contrary, compounds 2-4 exhibited reduced toxicity and selectivity in both tested cell lines. Based on the chemical structures of compounds 1-4, it is suggested that the presence of additional functional groups at the C-15 position-a hydroxyl group in compound 2 and isomeric isoprene units in compounds 3 and 4-might be responsible for the reduction in the potential/selectivity. In silico studies show, for compounds 1-4, good predictions regarding bioavailability and ADME (absorption, distribution, metabolism, and excretion) properties as well as no alerts for PAINS (pan-assay structures interference). In conclusion, ent-kaurenoic acid (1), a common diterpenoid isolated in high amounts from different plants belonging to the Baccharis genus, has been shown to be a promising cytotoxic agent against an aggressive adenocarcinoma cell line (MDA-MB-23) and, if well exploited, could be used as a scaffold in the development of molecular prototypes for the treatment of breast cancer.
    MeSH term(s) Adenocarcinoma ; Antineoplastic Agents/chemistry ; Baccharis/chemistry ; Diterpenes/pharmacology ; Diterpenes, Kaurane/chemistry ; Humans ; Structure-Activity Relationship
    Chemical Substances Antineoplastic Agents ; Diterpenes ; Diterpenes, Kaurane
    Language English
    Publishing date 2022-05-12
    Publishing country Germany
    Document type Journal Article
    ZDB-ID 6381-2
    ISSN 1521-4184 ; 0365-6233 ; 1437-1014
    ISSN (online) 1521-4184
    ISSN 0365-6233 ; 1437-1014
    DOI 10.1002/ardp.202200083
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Integrative open workflow for confident annotation and molecular networking of metabolomics MSE/DIA data.

    Katchborian-Neto, Albert / Alves, Matheus F / Bueno, Paula C P / de Jesus Nicácio, Karen / Ferreira, Miller S / Oliveira, Tiago B / Barbosa, Henrique / Murgu, Michael / de Paula Ladvocat, Ana C C / Dias, Danielle F / Soares, Marisi G / Lago, João H G / Chagas-Paula, Daniela A

    Briefings in bioinformatics

    2024  Volume 25, Issue 2

    Abstract: Liquid chromatography coupled with high-resolution mass spectrometry data-independent acquisition (LC-HRMS/DIA), including MSE, enable comprehensive metabolomics analyses though they pose challenges for data processing with automatic annotation and ... ...

    Abstract Liquid chromatography coupled with high-resolution mass spectrometry data-independent acquisition (LC-HRMS/DIA), including MSE, enable comprehensive metabolomics analyses though they pose challenges for data processing with automatic annotation and molecular networking (MN) implementation. This motivated the present proposal, in which we introduce DIA-IntOpenStream, a new integrated workflow combining open-source software to streamline MSE data handling. It provides 'in-house' custom database construction, allows the conversion of raw MSE data to a universal format (.mzML) and leverages open software (MZmine 3 and MS-DIAL) all advantages for confident annotation and effective MN data interpretation. This pipeline significantly enhances the accessibility, reliability and reproducibility of complex MSE/DIA studies, overcoming previous limitations of proprietary software and non-universal MS data formats that restricted integrative analysis. We demonstrate the utility of DIA-IntOpenStream with two independent datasets: dataset 1 consists of new data from 60 plant extracts from the Ocotea genus; dataset 2 is a publicly available actinobacterial extract spiked with authentic standard for detailed comparative analysis with existing methods. This user-friendly pipeline enables broader adoption of cutting-edge MS tools and provides value to the scientific community. Overall, it holds promise for speeding up metabolite discoveries toward a more collaborative and open environment for research.
    MeSH term(s) Reproducibility of Results ; Workflow ; Metabolomics/methods ; Mass Spectrometry/methods ; Chromatography, Liquid/methods ; Software
    Language English
    Publishing date 2024-02-07
    Publishing country England
    Document type Journal Article
    ZDB-ID 2068142-2
    ISSN 1477-4054 ; 1467-5463
    ISSN (online) 1477-4054
    ISSN 1467-5463
    DOI 10.1093/bib/bbae013
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Absolute Configuration and Antileishmanial Activity of (-)-Cyclocolorenone Isolated from

    Monteiro, Jackson / Passero, Luiz Felipe D / Jesus, Jéssica A / Laurenti, Márcia D / Lago, João H G / Soares, Marisi G / Batista, Andrea N L / Batista, João M / Sartorelli, Patricia

    Current topics in medicinal chemistry

    2022  Volume 22, Issue 19, Page(s) 1626–1633

    Abstract: Background: The fractionation of the n-hexane phase of the EtOH extract from the leaves of Duguetia lanceolata (Annonaceae) led to the identification of the sesquiterpene (-)-cyclocolorenone.: Objectives: Chemical characterization, including ... ...

    Abstract Background: The fractionation of the n-hexane phase of the EtOH extract from the leaves of Duguetia lanceolata (Annonaceae) led to the identification of the sesquiterpene (-)-cyclocolorenone.
    Objectives: Chemical characterization, including determination of the absolute stereochemistry, and in vitro evaluation of antileishmanial activity of the sesquiterpene (-)-cyclocolorenone, isolated from D. lanceolata, were carried out.
    Methods: (-)-Cyclocolorenone was isolated from D. lanceolata leaves using different chromatographic steps and its structure was defined by analysis of NMR and ESI-HRMS data. Additionally, the absolute configuration of (-)-cyclocolorenone was ambiguously assigned by means of vibrational circular dichroism (VCD). Antileishmanial activity of (-)-cyclocolorenone was evaluated on promastigote and amastigote forms of Leishmania (Leishmania) amazonensis. The integrity of the cell membrane of L. (L.) amazonensis was analyzed using the SYTOX green probe.
    Results: (-)-(1R,6S,7R,10R)-Cyclocolorenone displayed activity against promastigotes and amastigotes forms of L. (L.) amazonensis with IC
    Conclusion: Obtained data suggested that (-)-cyclocolorenone, in which absolute configuration was determined, can be considered as a scaffold for the development of new drugs for the treatment of leishmaniasis.
    MeSH term(s) Animals ; Annonaceae ; Antiprotozoal Agents/chemistry ; Antiprotozoal Agents/pharmacology ; Mice ; Mice, Inbred BALB C ; Sesquiterpenes
    Chemical Substances Antiprotozoal Agents ; Sesquiterpenes ; cyclocolorenone (489-45-2)
    Language English
    Publishing date 2022-07-24
    Publishing country United Arab Emirates
    Document type Journal Article
    ZDB-ID 2064823-6
    ISSN 1873-4294 ; 1568-0266
    ISSN (online) 1873-4294
    ISSN 1568-0266
    DOI 10.2174/1568026622666220707095718
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article: Petiveria alliacea, a plant used in Afro-Brazilian smoke rituals, triggers pulmonary inflammation in rats

    Alves, Thiago Cagliumi / Girardi, Carlos Eduardo N / Hipólide, Debora C / Lago, João H.G / Prado, Carla M / Rodrigues, Eliana

    Sociedade Brasileira de Farmacognosia Revista Brasileira de Farmacognosia. 2019 Sept., Oct., v. 29, no. 5

    2019  

    Abstract: Petiveria alliacea L., Phytolaccaceae, a plant used in Afro-Brazilian religious smoke rituals is reported to have “harmonic properties” (anxiolytic effect) by ethnobotanical survey. In the present work, we analyzed the chemical composition of volatiles ... ...

    Abstract Petiveria alliacea L., Phytolaccaceae, a plant used in Afro-Brazilian religious smoke rituals is reported to have “harmonic properties” (anxiolytic effect) by ethnobotanical survey. In the present work, we analyzed the chemical composition of volatiles produced by leaves of P. alliacea, using headspace gas chromatography/mass spectrometry and its potential anxiolytic and toxic effects in smoke-exposed rats. Locomotor activity and anxiety-like behavior were allocated into groups, according to substance administration: acute (locomotor activity) or chronic (anxiety-like behavior) burning charcoal or to smoke from P. alliacea. Inflammatory cell counts in the bronchoalveolar lavage and morphometric analysis in airway were assessed. Animals exposed to P. alliacea smoke had no locomotor activity or elevated plus maze open arm exploration impairment, while lungs had lower number of macrophages in bronchoalveolar fluid and an increased number of mononuclear and polymorphonuclear cells in the peribronchovascular region. Chemical analysis of plant material allowed the identification of dimethylsulfide (18.7%), diethylsulfide (33.4%) and nerolidol (25.8%) as main volatile compounds. Taken together, prolonged exposure to P. alliacea smoke does not induce anxiolytic effects, but histological analyses indicate a possible pulmonary inflammatory response.
    Keywords burning ; charcoal ; chemical composition ; dimethyl sulfide ; elevated plus-maze test ; ethnobotany ; gas chromatography-mass spectrometry ; headspace analysis ; histology ; inflammation ; leaves ; locomotion ; lungs ; macrophages ; morphometry ; nerolidol ; Petiveria alliacea ; Phytolaccaceae ; rats ; respiratory tract diseases ; smoke ; surveys ; toxicity ; tranquilizers ; volatile compounds
    Language English
    Dates of publication 2019-09
    Size p. 656-664.
    Publishing place Elsevier Editora Ltda.
    Document type Article
    ISSN 0102-695X
    DOI 10.1016/j.bjp.2019.06.005
    Database NAL-Catalogue (AGRICOLA)

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  7. Article ; Online: Predictive metabolomic signatures of end-stage renal disease: A multivariate analysis of population-based data.

    Silva, Robson E / Baldim, João L / Chagas-Paula, Daniela A / Soares, Marisi G / Lago, João H G / Gonçalves, Reggiani V / Novaes, Rômulo D

    Biochimie

    2018  Volume 152, Page(s) 14–30

    Abstract: The variability of molecular signatures and predictive low molecular weight markers of chronic kidney disease (CKD) in different populations are poorly understood. Thus, in a large sample with 4763 people we compare the molecular signatures and ... ...

    Abstract The variability of molecular signatures and predictive low molecular weight markers of chronic kidney disease (CKD) in different populations are poorly understood. Thus, in a large sample with 4763 people we compare the molecular signatures and metabolites with diagnostic relevance in plasma and urine of CKD patients of different geographical origins. From an integrated model based on dynamic networks and multivariate statistics, metabolites with predictive value obtained from targeted and untargeted molecular analysis, interactions between metabolic pathways affected by CKD, and the methodological quality of metabolomic studies were analyzed. The metabolites 3-methylhistidine, citrulline, kynurenine, p-cresol sulfate, urea, and citrate presented consistent expression in all population groups. Only increased kynurenine and p-cresol sulfate in plasma samples obtained acceptable scores as CKD biomarkers, independent of geographic origin. Metabolites such as leucine, alanine, isoleucine, serine, histidine, and citrate were nodal points, indicating that protein metabolism pathways are similarly impaired in Asian, European and North American patients. Based on our integrated model, we show that the metabolome of CKD patients exhibits a strong geographic influence, leading to unique metabolic signatures. Contrary to the likelihood of molecular similarities between geographically distinct populations, metabolic convergences in protein metabolism pathways and the molecules kynurenine and p-cresol sulfate were relevant as general predictors of CKD. In general, the quality assessment indicated that the current evidence is based on research models with variable methodological quality, whose limitations described in this study should be considered in the refinement of molecular approaches.
    MeSH term(s) Biomarkers/blood ; Biomarkers/urine ; Case-Control Studies ; Cresols/metabolism ; Female ; Humans ; Kidney Failure, Chronic/blood ; Kidney Failure, Chronic/metabolism ; Kidney Failure, Chronic/pathology ; Kidney Failure, Chronic/urine ; Kynurenine/metabolism ; Male ; Metabolomics ; Multivariate Analysis ; Oxidative Stress ; Population Surveillance ; Sulfuric Acid Esters/metabolism
    Chemical Substances Biomarkers ; Cresols ; Sulfuric Acid Esters ; Kynurenine (343-65-7) ; 4-cresol sulfate (56M34ZQY1S)
    Language English
    Publishing date 2018-06-15
    Publishing country France
    Document type Journal Article
    ZDB-ID 120345-9
    ISSN 1638-6183 ; 0300-9084
    ISSN (online) 1638-6183
    ISSN 0300-9084
    DOI 10.1016/j.biochi.2018.06.009
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: Synthesis and Structure-Activity Relationship of Dehydrodieugenol B Neolignans against

    Sear, Claire E / Pieper, Pauline / Amaral, Maiara / Romanelli, Maiara M / Costa-Silva, Thais A / Haugland, Marius M / Tate, Joseph A / Lago, João H G / Tempone, Andre G / Anderson, Edward A

    ACS infectious diseases

    2020  Volume 6, Issue 11, Page(s) 2872–2878

    Abstract: Trypanosoma ... ...

    Abstract Trypanosoma cruzi
    MeSH term(s) Anisoles ; Lignans/pharmacology ; Structure-Activity Relationship ; Trypanosoma cruzi
    Chemical Substances Anisoles ; Lignans ; dehydrodieugenol B
    Language English
    Publishing date 2020-10-13
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ISSN 2373-8227
    ISSN (online) 2373-8227
    DOI 10.1021/acsinfecdis.0c00523
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article ; Online: Sesquiterpene Lactones from

    Caldas, Lhaís Araújo / Rodrigues, Mariana T / Batista, Andrea N L / Batista, João M / Lago, João H G / Ferreira, Marcelo J P / Rubio, Ileana G S / Sartorelli, Patricia

    Molecules (Basel, Switzerland)

    2020  Volume 25, Issue 13

    Abstract: This work describes the chromatographic fractionation of the aerial parts ... ...

    Abstract This work describes the chromatographic fractionation of the aerial parts of
    MeSH term(s) Antineoplastic Agents, Phytogenic/chemistry ; Antineoplastic Agents, Phytogenic/pharmacology ; Asteraceae/chemistry ; Carcinoma/drug therapy ; Carcinoma/pathology ; Carcinoma, Papillary/drug therapy ; Carcinoma, Papillary/pathology ; Cell Proliferation ; Humans ; Lactones/pharmacology ; Molecular Structure ; Phytochemicals/chemistry ; Phytochemicals/pharmacology ; Plant Leaves/chemistry ; Sesquiterpenes/chemistry ; Sesquiterpenes/pharmacology ; Thyroid Neoplasms/drug therapy ; Thyroid Neoplasms/pathology ; Tumor Cells, Cultured
    Chemical Substances Antineoplastic Agents, Phytogenic ; Lactones ; Phytochemicals ; Sesquiterpenes ; calealactone B
    Language English
    Publishing date 2020-06-30
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 1413402-0
    ISSN 1420-3049 ; 1431-5165 ; 1420-3049
    ISSN (online) 1420-3049
    ISSN 1431-5165 ; 1420-3049
    DOI 10.3390/molecules25133005
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article ; Online: Effects of Eugenol and Dehydrodieugenol B from

    Bittencourt-Mernak, Márcia I / Pinheiro, Nathalia M / da Silva, Rafael C / Ponci, Vitor / Banzato, Rosana / Pinheiro, Aruanã J M C R / Olivo, Clarice R / Tibério, Iolanda F L C / Lima Neto, Lídio G / Santana, Fernanda P R / Lago, João H G / Prado, Carla M

    Journal of natural products

    2021  Volume 84, Issue 8, Page(s) 2282–2294

    Abstract: Acute lung injury (ALI) is an important public health problem. The present work investigated whether dehydrodieugenol B treatment, a compound isolated from Brazilian ... ...

    Abstract Acute lung injury (ALI) is an important public health problem. The present work investigated whether dehydrodieugenol B treatment, a compound isolated from Brazilian plant
    MeSH term(s) Acute Lung Injury/chemically induced ; Acute Lung Injury/drug therapy ; Animals ; Anisoles/pharmacology ; Brazil ; Eugenol/pharmacology ; Lauraceae/chemistry ; Lipopolysaccharides ; Male ; Mice ; Mice, Inbred BALB C ; Phytochemicals/pharmacology ; Plant Leaves/chemistry ; Pneumonia/chemically induced ; Pneumonia/drug therapy ; RAW 264.7 Cells
    Chemical Substances Anisoles ; Lipopolysaccharides ; Phytochemicals ; dehydrodieugenol B ; Eugenol (3T8H1794QW)
    Language English
    Publishing date 2021-07-15
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 304325-3
    ISSN 1520-6025 ; 0163-3864
    ISSN (online) 1520-6025
    ISSN 0163-3864
    DOI 10.1021/acs.jnatprod.1c00386
    Database MEDical Literature Analysis and Retrieval System OnLINE

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