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Assis de Andrade E, Machinski I, Terso Ventura AC, Barr SA, Pereira AV, Beltrame FL, Strangman WK, Williamson RT. A Review of the Popular Uses, Anatomical, Chemical, and Biological Aspects of Kalanchoe (Crassulaceae): A Genus of Plants Known as "Miracle Leaf". Molecules 2023; 28:5574. [PMID: 37513446 PMCID: PMC10383218 DOI: 10.3390/molecules28145574] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Revised: 07/15/2023] [Accepted: 07/19/2023] [Indexed: 07/30/2023] Open
Abstract
Species of the genus Kalanchoe have a long history of therapeutic use in ethnomedicine linked to their remarkable healing properties. Several species have chemical and anatomical similarities, often leading to confusion when they are used in folk medicine. This review aims to provide an overview and discussion of the reported traditional uses, botanical aspects, chemical constituents, and pharmacological potential of the Kalanchoe species. Published scientific materials were collected from the PubMed and SciFinder databases without restriction regarding the year of publication through April 2023. Ethnopharmacological knowledge suggests that these species have been used to treat infections, inflammation, injuries, and other disorders. Typically, all parts of the plant are used for medicinal purposes either as crude extract or juice. Botanical evaluation can clarify species differentiation and can enable correct identification and validation of the scientific data. Flavonoids are the most common classes of secondary metabolites identified from Kalanchoe species and can be correlated with some biological studies (antioxidant, anti-inflammatory, and antimicrobial potential). This review summarizes several topics related to the Kalanchoe genus, supporting future studies regarding other unexplored research areas. The need to conduct further studies to confirm the popular uses and biological activities of bioactive compounds is also highlighted.
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Affiliation(s)
- Evelyn Assis de Andrade
- Pharmaceutical Science Graduate Program, State University of Ponta Grossa, Ponta Grossa 84030-900, PR, Brazil
| | - Isadora Machinski
- Pharmaceutical Science Graduate Program, State University of Ponta Grossa, Ponta Grossa 84030-900, PR, Brazil
| | - Ana Carolina Terso Ventura
- Pharmaceutical Science Graduate Program, State University of Ponta Grossa, Ponta Grossa 84030-900, PR, Brazil
| | - Sarah Ainslie Barr
- Department of Chemistry and Biochemistry, University of North Carolina Wilmington, Wilmington, NC 28409, USA
| | - Airton Vicente Pereira
- Pharmaceutical Science Graduate Program, State University of Ponta Grossa, Ponta Grossa 84030-900, PR, Brazil
| | - Flávio Luís Beltrame
- Pharmaceutical Science Graduate Program, State University of Ponta Grossa, Ponta Grossa 84030-900, PR, Brazil
| | - Wendy Karen Strangman
- Department of Chemistry and Biochemistry, University of North Carolina Wilmington, Wilmington, NC 28409, USA
| | - Robert Thomas Williamson
- Department of Chemistry and Biochemistry, University of North Carolina Wilmington, Wilmington, NC 28409, USA
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Tater A, Gupta A, Upadhyay G, Deshpande A, Date R, Tamboli IY. In vitro assays for characterization of distinct multiple catalytic activities of thyroid peroxidase using LC-MS/MS. Curr Res Toxicol 2021; 2:19-29. [PMID: 34345847 PMCID: PMC8320612 DOI: 10.1016/j.crtox.2021.01.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2020] [Revised: 12/30/2020] [Accepted: 01/05/2021] [Indexed: 11/30/2022] Open
Abstract
Multiple reactions catalyzed by thyroid peroxidase (TPO) were monitored by a battery of unique in vitro assays. Monoiodination and diiodination of L-Tyr to MIT and DIT was examined in a single assay. MIT to DIT and T3 to T4 monoiodination reactions were monitored separately. DIT to T4 conversion assay was used to study coupling of iodotyrosine phenolic rings. Distinct Km, Vmax, Kcat and Kcat/ Km values for each of the TPO catalysed reaction are presented. Differential response of 5 known inhibitors with specific TPO reactions was studied.
A diverse set of environmental contaminants have raised a concern about their potential adverse effects on endocrine signaling. Robust and widely accepted battery of in vitro assays is available to assess the disruption of androgenic and estrogenic pathways. However, such definitive systems to investigate effects on the disruption of thyroid pathways by the xenobiotics are not yet well established. One of the major “Molecular Initiating Events” (MIEs) in thyroid disruption involves targeting of thyroid peroxidase (TPO), a key enzyme involved in thyroid hormone synthesis. TPO catalyzes mono- and diiodination of L-Tyrosine (L-Tyr) to generate 3-Iodo-l-tyrosine (MIT) and 3,5-Diiodo-l-tyrosine (DIT), respectively, followed by the coupling of iodinated tyrosine rings to generate thyroid hormones, 3,3’5-Triiodo-l-thyronine (T3) and Levothyroxine (T4). We sought to develop a robust, sensitive, and rapid in vitro assay systems to evaluate the effects of test chemicals on the multiple catalytic activities of thyroid peroxidase. Simple in vitro assays were designed to study TPO mediated distinct reactions using a single LC-MS/MS method. Herein, we describe a battery of assays to investigate the iodination of L-Tyr to MIT and DIT, MIT to DIT as well as, T3 to T4 catalyzed by rat thyroid TPO. Importantly, two sequential reactions involving mono- and diiodination of L-Tyr could be analyzed in a single assay. The assay that monitors in vitro conversion of DIT to T4 was developed to study the coupling of tyrosine rings. Enzyme kinetics studies revealed distinct characteristics of multiple reactions catalyzed by TPO. Further, the known TPO inhibitors were used to assess their potency towards individual TPO substrates and reactions. The resultant half maximum inhibitory concentration (IC50) values highlighted differential targeting of TPO catalyzed reactions by the same inhibitor. Overall results underscore the need to develop more nuanced approaches that account for distinct multiple catalytic activities of TPO.
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Affiliation(s)
- Abhishek Tater
- Jai Research Foundation, N. H. 48, Near Daman-Ganga bridge, Valvada 396105, India
| | - Aditi Gupta
- Jai Research Foundation, N. H. 48, Near Daman-Ganga bridge, Valvada 396105, India
| | - Gopal Upadhyay
- Jai Research Foundation, N. H. 48, Near Daman-Ganga bridge, Valvada 396105, India
| | - Abhay Deshpande
- Jai Research Foundation, N. H. 48, Near Daman-Ganga bridge, Valvada 396105, India
| | - Rahul Date
- Jai Research Foundation, N. H. 48, Near Daman-Ganga bridge, Valvada 396105, India
| | - Irfan Y Tamboli
- Jai Research Foundation, N. H. 48, Near Daman-Ganga bridge, Valvada 396105, India
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Legerská B, Chmelová D, Ondrejovič M, Miertuš S. The TLC-Bioautography as a Tool for Rapid Enzyme Inhibitors detection - A Review. Crit Rev Anal Chem 2020; 52:275-293. [PMID: 32744081 DOI: 10.1080/10408347.2020.1797467] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Microorganisms and plants can be important sources of many compounds with potential pharmaceutical applications. Extraction of these matrices is one of the ways of identifying the presence of inhibitory active substances against enzymes whose high activity leads to serious human diseases including cancer, Parkinson's or Crohn's diseases. The isolation and purification of inhibitors are time-consuming and expensive steps in the analysis of the crude extract and therefore, it is necessary to find a fast, efficient, and inexpensive method for screening extracts of interest. TLC-Bioautography combines the separation of the extract on a thin layer with its subsequent biological analysis. TLC-Bioautography methods have been developed for several classes of enzymes including oxidoreductases, hydrolases and isomerases, and there is a potential for developing functional methods for other classes of enzymes. This review summarizes known TLC-Bioautography methods and their applications for determining the presence of enzyme inhibitors in extracts and compares the effectiveness of different methodological approaches. It also indicates the current state and perspective of the development of TLC-Bioautography and its possible future applications.
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Affiliation(s)
- Barbora Legerská
- Department of Biotechnology, Faculty of Natural Sciences, University of Ss. Cyril and Methodius in Trnava, Trnava, Slovakia
| | - Daniela Chmelová
- Department of Biotechnology, Faculty of Natural Sciences, University of Ss. Cyril and Methodius in Trnava, Trnava, Slovakia
| | - Miroslav Ondrejovič
- Department of Biotechnology, Faculty of Natural Sciences, University of Ss. Cyril and Methodius in Trnava, Trnava, Slovakia
| | - Stanislav Miertuš
- Department of Biotechnology, Faculty of Natural Sciences, University of Ss. Cyril and Methodius in Trnava, Trnava, Slovakia.,ICARST n.o., Bratislava, Slovakia
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Zohreh B, Masoumeh V, Fakhraddin N, Omrani GHR. Apigenin-mediated Alterations in Viability and Senescence of SW480 Colorectal Cancer Cells Persist in The Presence of L-thyroxine. Anticancer Agents Med Chem 2020; 19:1535-1542. [PMID: 31272364 DOI: 10.2174/1871520619666190704102708] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2019] [Revised: 04/15/2019] [Accepted: 04/24/2019] [Indexed: 02/08/2023]
Abstract
INTRODUCTION Deregulation of Thyroid Hormones (THs) system in Colorectal Cancer (CRC) suggests that these hormones may play roles in CRC pathogenesis. Flavonoids are polyphenolic compounds, which possess potent antitumor activities and interfere, albeit some of them, with all aspects of THs physiology. Whether the antitumor actions of flavonoids are affected by THs is unknown. Therefore, we investigated the effects of apigenin (Api), a well-known flavone, on some tumorigenic properties of SW480 CRC cells in the presence and absence of L-thyroxine (T4). METHODS Cell viability was assessed by MTT assay. Flow cytometry and DNA electrophoresis were used to evaluate cell death. Cell senescence was examined by in situ detection of β-galactosidase activity. Protein expression was assessed by antibody array technique. RESULTS While T4 had minimal effects, Api reduced cell growth and senescence by induction of apoptosis. Expression of anti-apoptotic and pro-apoptotic proteins were differentially affected by Api and T4. Survivin, HSP60 and HTRA were the most expressed proteins by the cells. Almost all Api-induced effects persisted in the presence of T4. CONCLUSION These data suggest that Api may inhibit CRC cell growth and progression through induction of apoptosis rather than cell necrosis or senescence. In addition, they suggest that T4 has minimal effects on CRC cell growth, and is not able to antagonize the anti-growth effects of Api. Regardless of the treatments, cells expressed high levels of survivin, HSP60 and HTRA, indicating that these proteins may play central roles in SW480 CRC cell immortality.
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Affiliation(s)
- Bagheri Zohreh
- Department of Physiology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Varedi Masoumeh
- Department of Physiology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | | | - Gholam H R Omrani
- Endocrine and Metabolism Research Center, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
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Paunkov A, Chartoumpekis DV, Ziros PG, Chondrogianni N, Kensler TW, Sykiotis GP. Impact of Antioxidant Natural Compounds on the Thyroid Gland and Implication of the Keap1/Nrf2 Signaling Pathway. Curr Pharm Des 2020; 25:1828-1846. [PMID: 31267862 DOI: 10.2174/1381612825666190701165821] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2019] [Accepted: 06/20/2019] [Indexed: 02/08/2023]
Abstract
BACKGROUND Natural compounds with potential antioxidant properties have been used in the form of food supplements or extracts with the intent to prevent or treat various diseases. Many of these compounds can activate the cytoprotective Nrf2 pathway. Besides, some of them are known to impact the thyroid gland, often with potential side-effects, but in other instances, with potential utility in the treatment of thyroid disorders. OBJECTIVE In view of recent data regarding the multiple roles of Nrf2 in the thyroid, this review summarizes the current bibliography on natural compounds that can have an effect on thyroid gland physiology and pathophysiology, and it discusses the potential implication of the Nrf2 system in the respective mechanisms. METHODS & RESULTS Literature searches for articles from 1950 to 2018 were performed in PubMed and Google Scholar using relevant keywords about phytochemicals, Nrf2 and thyroid. Natural substances were categorized into phenolic compounds, sulfur-containing compounds, quinones, terpenoids, or under the general category of plant extracts. For individual compounds in each category, respective data were summarized, as derived from in vitro (cell lines), preclinical (animal models) and clinical studies. The main emerging themes were as follows: phenolic compounds often showed potential to affect the production of thyroid hormones; sulfur-containing compounds impacted the pathogenesis of goiter and the proliferation of thyroid cancer cells; while quinones and terpenoids modified Nrf2 signaling in thyroid cell lines. CONCLUSION Natural compounds that modify the activity of the Nrf2 pathway should be evaluated carefully, not only for their potential to be used as therapeutic agents for thyroid disorders, but also for their thyroidal safety when used for the prevention and treatment of non-thyroidal diseases.
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Affiliation(s)
- Ana Paunkov
- Service of Endocrinology, Diabetology and Metabolism, University of Lausanne, Lausanne, Switzerland
| | - Dionysios V Chartoumpekis
- Department of Internal Medicine, Endocrinology Unit, Patras University Medical School, Patras, Greece
| | - Panos G Ziros
- Service of Endocrinology, Diabetology and Metabolism, University of Lausanne, Lausanne, Switzerland
| | - Niki Chondrogianni
- Institute of Biology, Medicinal Chemistry and Biotechnology, National Hellenic Research Foundation, Athens, Greece
| | - Thomas W Kensler
- Public Health Sciences Division, Fred Hutchinson Cancer Research Center, Seattle, WA, United States
| | - Gerasimos P Sykiotis
- Service of Endocrinology, Diabetology and Metabolism, University of Lausanne, Lausanne, Switzerland
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Kalanchoe laciniata and Bryophyllum pinnatum: an updated review about ethnopharmacology, phytochemistry, pharmacology and toxicology. REVISTA BRASILEIRA DE FARMACOGNOSIA-BRAZILIAN JOURNAL OF PHARMACOGNOSY 2019. [DOI: 10.1016/j.bjp.2019.01.012] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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Gonçalves CFL, de Freitas ML, Ferreira ACF. Flavonoids, Thyroid Iodide Uptake and Thyroid Cancer-A Review. Int J Mol Sci 2017; 18:E1247. [PMID: 28604619 PMCID: PMC5486070 DOI: 10.3390/ijms18061247] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2017] [Revised: 06/05/2017] [Accepted: 06/07/2017] [Indexed: 12/27/2022] Open
Abstract
Thyroid cancer is the most common malignant tumor of the endocrine system and the incidence has been increasing in recent years. In a great part of the differentiated carcinomas, thyrocytes are capable of uptaking iodide. In these cases, the main therapeutic approach includes thyroidectomy followed by ablative therapy with radioiodine. However, in part of the patients, the capacity to concentrate iodide is lost due to down-regulation of the sodium-iodide symporter (NIS), the protein responsible for transporting iodide into the thyrocytes. Thus, therapy with radioiodide becomes ineffective, limiting therapeutic options and reducing the life expectancy of the patient. Excessive ingestion of some flavonoids has been associated with thyroid dysfunction and goiter. Nevertheless, studies have shown that some flavonoids can be beneficial for thyroid cancer, by reducing cell proliferation and increasing cell death, besides increasing NIS mRNA levels and iodide uptake. Recent data show that the flavonoids apingenin and rutin are capable of increasing NIS function and expression in vivo. Herein we review literature data regarding the effect of flavonoids on thyroid cancer, besides the effect of these compounds on the expression and function of the sodium-iodide symporter. We will also discuss the possibility of using flavonoids as adjuvants for therapy of thyroid cancer.
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Affiliation(s)
- Carlos F L Gonçalves
- Carlos Frederico Lima Gonçalves, Laboratory of Endocrine Physiology, Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, 21941-902 Rio de Janeiro, Brazil.
| | - Mariana L de Freitas
- Mariana Lopes de Freitas, Laboratory of Endocrine Physiology, Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, 21941-902 Rio de Janeiro, Brazil.
| | - Andrea C F Ferreira
- Andrea Claudia Freitas Ferreira, Laboratory of Endocrine Physiology, Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, 21941-902 Rio de Janeiro, Brazil.
- NUMPEX, Campus Duque de Caxias, Universidade Federal do Rio de Janeiro, Duque de Caxias, 25245-390 Rio de Janeiro, Brazil.
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Immunomodulating and Revascularizing Activity of Kalanchoe pinnata Synergize with Fungicide Activity of Biogenic Peptide Cecropin P1. J Immunol Res 2017; 2017:3940743. [PMID: 28695135 PMCID: PMC5485323 DOI: 10.1155/2017/3940743] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2017] [Accepted: 04/10/2017] [Indexed: 11/18/2022] Open
Abstract
Previously transgenic Kalanchoe pinnata plants producing an antimicrobial peptide cecropin P1 (CecP1) have been reported. Now we report biological testing K. pinnata extracts containing CecP1 as a candidate drug for treatment of wounds infected with Candida albicans. The drug constitutes the whole juice from K. pinnata leaves (not ethanol extract) sterilized with nanofiltration. A microbicide activity of CecP1 against an animal fungal pathogen in vivo was demonstrated for the first time. However, a favorable therapeutic effect of the transgenic K. pinnata extract was attributed to a synergism between the fungicide activity of CecP1 and wound healing (antiscar), revascularizing, and immunomodulating effect of natural biologically active components of K. pinnata. A commercial fungicide preparation clotrimazole eliminated C. albicans cells within infected wounds in rats with efficiency comparable to CecP1-enriched K. pinnata extract. But in contrast to K. pinnata extract, clotrimazole did not exhibit neither wound healing activity nor remodeling of the scar matrix. Taken together, our results allow assumption that CecP1-enriched K. pinnata extracts should be considered as a candidate drug for treatment of dermatomycoses, wounds infected with fungi, and bedsores.
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Lebedeva AA, Zakharchenko NS, Trubnikova EV, Medvedeva OA, Kuznetsova TV, Masgutova GA, Zylkova MV, Buryanov YI, Belous AS. Bactericide, Immunomodulating, and Wound Healing Properties of Transgenic Kalanchoe pinnata Synergize with Antimicrobial Peptide Cecropin P1 In Vivo. J Immunol Res 2017; 2017:4645701. [PMID: 28326334 PMCID: PMC5343256 DOI: 10.1155/2017/4645701] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2016] [Accepted: 01/23/2017] [Indexed: 11/22/2022] Open
Abstract
Procedure of manufacturing K. pinnata water extracts containing cecropin P1 (CecP1) from the formerly described transgenic plants is established. It included incubation of leaves at +4°C for 7 days, mechanical homogenization of leaves using water as extraction solvent, and heating at +70°C for inactivating plant enzymes. Yield of CecP1 (after heating and sterilizing filtration) was 0.3% of total protein in the extract. The water extract of K. pinnata + CecP1 exhibits favorable effect on healing of wounds infected with S. aureus (equal to Cefazolin) and with a combination of S. aureus with P. aeruginosa (better than Cefazolin). Wild-type K. pinnata extract exhibited evident microbicide activity against S. aureus with P. aeruginosa but it was substantially strengthened in K. pinnata + CecP1 extract. K. pinnata extracts (both wild-type and transgenic) did not exhibit general toxicity and accelerated wound recovery. Due to immunomodulating activity, wild-type K. pinnata extract accelerated granulation of the wound bed and marginal epithelialization even better than K. pinnata + CecP1 extract. Immunomodulating and microbicide activity of K. pinnata synergizes with microbicide activity of CecP1 accelerating elimination of bacteria.
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Affiliation(s)
- A. A. Lebedeva
- Russian Academy of Sciences, Branch of Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Pushchino, Moscow Region, Russia
| | - N. S. Zakharchenko
- Russian Academy of Sciences, Branch of Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Pushchino, Moscow Region, Russia
| | - E. V. Trubnikova
- Kursk State University, Kursk, Russia
- Kursk State Medical University, Kursk, Russia
| | | | | | | | - M. V. Zylkova
- Russian Academy of Sciences, Branch of Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Pushchino, Moscow Region, Russia
- Emanuel Institute of Biochemical Physics, Moscow, Russia
| | - Y. I. Buryanov
- Russian Academy of Sciences, Branch of Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Pushchino, Moscow Region, Russia
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Panda S, Kar A. Antithyroid effects of naringin, hesperidin and rutin in l-T4 induced hyperthyroid rats: Possible mediation through 5′DI activity. Pharmacol Rep 2014; 66:1092-9. [DOI: 10.1016/j.pharep.2014.07.002] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2014] [Revised: 06/21/2014] [Accepted: 07/02/2014] [Indexed: 12/17/2022]
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Costa ACDO, Fernandes JM, Neto TDSN, Mendonça JN, Tomaz JC, Lopes NP, Soares LAL, Zucolotto SM. Quantification of Chemical Marker of Kalanchoe brasiliensis (Crassulaceae) Leaves by HPLC–DAD. J LIQ CHROMATOGR R T 2014. [DOI: 10.1080/10826076.2014.971370] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Anne Caroline de Oliveira Costa
- Programa de Pós-Graduação em Ciências Farmacêuticas, Centro de Ciências da Saúde, Universidade Federal do Rio Grande do Norte, Natal-RN, Brazil
| | - Júlia Morais Fernandes
- Programa de Pós-Graduação em Ciências Farmacêuticas, Centro de Ciências da Saúde, Universidade Federal do Rio Grande do Norte, Natal-RN, Brazil
| | | | - Jacqueline Nakau Mendonça
- Departamento de Física e Química, Faculdade de Ciências Farmacêuticas de Ribeirão Preto-SP, Ribeirão Preto-SP, Brazil
| | - José Carlos Tomaz
- Departamento de Física e Química, Faculdade de Ciências Farmacêuticas de Ribeirão Preto-SP, Ribeirão Preto-SP, Brazil
| | - Norberto Peporine Lopes
- Departamento de Física e Química, Faculdade de Ciências Farmacêuticas de Ribeirão Preto-SP, Ribeirão Preto-SP, Brazil
| | - Luiz Alberto Lira Soares
- Departamento de Ciências Farmacêuticas, Universidade Federal de Pernambuco, Cidade Universitária, Recife-PE, Brazil
| | - Silvana Maria Zucolotto
- Programa de Pós-Graduação em Ciências Farmacêuticas, Centro de Ciências da Saúde, Universidade Federal do Rio Grande do Norte, Natal-RN, Brazil
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Lima Gonçalves CF, de Souza dos Santos MC, Ginabreda MG, Soares Fortunato R, Pires de Carvalho D, Freitas Ferreira AC. Flavonoid rutin increases thyroid iodide uptake in rats. PLoS One 2013; 8:e73908. [PMID: 24023911 PMCID: PMC3762709 DOI: 10.1371/journal.pone.0073908] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2013] [Accepted: 07/25/2013] [Indexed: 11/19/2022] Open
Abstract
Thyroid iodide uptake through the sodium-iodide symporter (NIS) is not only an essential step for thyroid hormones biosynthesis, but also fundamental for the diagnosis and treatment of different thyroid diseases. However, part of patients with thyroid cancer is refractory to radioiodine therapy, due to reduced ability to uptake iodide, which greatly reduces the chances of survival. Therefore, compounds able to increase thyroid iodide uptake are of great interest. It has been shown that some flavonoids are able to increase iodide uptake and NIS expression in vitro, however, data in vivo are lacking. Flavonoids are polyhydroxyphenolic compounds, found in vegetables present in human diet, and have been shown not only to modulate NIS, but also thyroperoxidase (TPO), the key enzyme in thyroid hormones biosynthesis, besides having antiproliferative effect in thyroid cancer cell lines. Therefore, we aimed to evaluate the effect of some flavonoids on thyroid iodide uptake in Wistar rats in vivo. Among the flavonoids tested, rutin was the only one able to increase thyroid iodide uptake, so we decided to evaluate the effect of this flavonoid on some aspects of thyroid hormones synthesis and metabolism. Rutin led to a slight reduction of serum T4 and T3 without changes in serum thyrotropin (TSH), and significantly increased hypothalamic, pituitary and brown adipose tissue type 2 deiodinase and decreased liver type 1 deiodinase activities. Moreover, rutin treatment increased thyroid iodide uptake probably due to the increment of NIS expression, which might be secondary to increased response to TSH, since TSH receptor expression was increased. Thus, rutin might be useful as an adjuvant in radioiodine therapy, since this flavonoid increased thyroid iodide uptake without greatly affecting thyroid function.
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Affiliation(s)
- Carlos Frederico Lima Gonçalves
- Laboratório de Fisiologia Endócrina Doris Rosenthal, Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brasil
| | - Maria Carolina de Souza dos Santos
- Laboratório de Fisiologia Endócrina Doris Rosenthal, Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brasil
| | - Maria Gloria Ginabreda
- Laboratório de Fisiologia Endócrina Doris Rosenthal, Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brasil
| | - Rodrigo Soares Fortunato
- Laboratório de Fisiologia Endócrina Doris Rosenthal, Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brasil
| | - Denise Pires de Carvalho
- Laboratório de Fisiologia Endócrina Doris Rosenthal, Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brasil
| | - Andrea Claudia Freitas Ferreira
- Laboratório de Fisiologia Endócrina Doris Rosenthal, Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brasil
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Catechin induced modulation in the activities of thyroid hormone synthesizing enzymes leading to hypothyroidism. Mol Cell Biochem 2012; 374:37-48. [DOI: 10.1007/s11010-012-1503-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2012] [Accepted: 10/25/2012] [Indexed: 10/27/2022]
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de Souza Dos Santos MC, Gonçalves CFL, Vaisman M, Ferreira ACF, de Carvalho DP. Impact of flavonoids on thyroid function. Food Chem Toxicol 2011; 49:2495-502. [PMID: 21745527 DOI: 10.1016/j.fct.2011.06.074] [Citation(s) in RCA: 68] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2011] [Revised: 06/20/2011] [Accepted: 06/27/2011] [Indexed: 01/03/2023]
Abstract
Flavonoids are polyphenolic compounds of natural occurrence produced by plants that are largely consumed both for therapeutic purposes and as food. Experimental data have shown that many flavonoids could inhibit thyroperoxidase activity, decreasing thyroid hormones levels thus increasing TSH and causing goiter. In humans, infants fed with soy formula have been shown to develop goiter. However, in post-menopausal women soy intake did not affect thyroid function. In thyroid tumor cell line, flavonoids were shown to inhibit cell growth, but they can also decrease radioiodine uptake, that could reduce the efficacy of radioiodine therapy. Flavonoids could also affect the availability of thyroid hormones to target tissues, by inhibiting deiodinase activity or displacing T4 from transthyretin. Thus, flavonoids have been shown to interfere with many aspects of the thyroid hormones synthesis and availability in in vivo and in vitro models. In the present article, we review and synthesize the literature on the effects of flavonoids on thyroid and discuss the possible relevance of these effects for humans.
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Affiliation(s)
- Maria Carolina de Souza Dos Santos
- Laboratório de Fisiologia Endócrina Doris Rosenthal, Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, RJ, Brazil
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Silva KGH, Júnior FHX, Farias IEG, Silva AKA, Neto JAC, Souza LCA, Santiago RR, Júnior FA, Júnior TN, Soares LAL, Santos-Magalhães NS, Egito EST. Stationary cuvette: a new approach to obtaining analytical curves by UV-VIS spectrophotometry. PHYTOCHEMICAL ANALYSIS : PCA 2009; 20:265-271. [PMID: 19333915 DOI: 10.1002/pca.1122] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
BACKGROUND Investigations in the field of pharmaceutical analysis and quality control of medicines require analytical procedures that achieve suitable performance. An analytical curve is one of the most important steps in the chemical analysis presenting a direct relationship to features such as linearity. OBJECTIVE This study has the aim of developing a new methodology, the stationary cuvette, to derive analytical curves by spectroscopy for drug analysis. METHODOLOGY The method consists basically of the use of a cuvette with a path length of 10 cm, containing a constant volume of solvent in which increasing amounts of a stock solution of the sample are added, droplet by droplet. After each addition, the cuvette is stirred and the absorbance is measured. This procedure was compared with the currently used methodology, which requires a labour-intensive dilution process, and possible sources of variation between them were evaluated. RESULTS The results demonstrated that the proposed technique presented high sensitivity and similar reproducibility compared with the conventional methodology. In addition, a number of advantages were observed, such as user-friendliness, cost-effectiveness, accuracy, precision and robustness. CONCLUSION The stationary cuvette approach may be considered to be an appropriate alternative to derive analytical curves for analysing drug content in raw materials and medicines through UV-VIS spectrophotometry.
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Affiliation(s)
- K G H Silva
- Programa de Pós-graduação em Ciências da Saúde, Universidade Federal do Rio Grande do Norte, Natal-RN, Brazil
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Silva ACM, Marassi MP, Mühlbauer M, Lourenço AL, Carvalho DP, Ferreira ACF. Retinoic acid effects on thyroid function of female rats. Life Sci 2009; 84:673-7. [PMID: 19233213 DOI: 10.1016/j.lfs.2009.02.010] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2008] [Revised: 12/09/2008] [Accepted: 02/10/2009] [Indexed: 11/28/2022]
Abstract
AIMS Retinoic acid is widely used in dermatological treatment and thyroid cancer management; however its possible side-effects on normal thyroid function remains unknown. We aimed to determine the effects of retinoic acid on thyroid function of adult female rats. MAIN METHODS Female Wistar rats were treated with all-trans-retinoic acid and 13-cis retinoic acid for 14 and 28 days. Then, rats were killed and thyroid function was evaluated. KEY FINDINGS Serum T4 and thyrotropin levels remained unchanged, while serum T3 increased in animals treated with all-trans-retinoic acid for 14 days. No changes were observed in hepatic or renal type 1 iodothyronine deiodinase (D1) activities, while thyroid D1 was higher in animals treated for 14 days with all-trans-retinoic acid, which could be related to the increased serum T3 levels. 13-cis retinoic acid increased thyroid iodide uptake after 28 days. These results show effects of retinoic acid treatment on these thyroid proteins: sodium/iodide symporter and deiodinase. SIGNIFICANCE Retinoic acid is able to interfere with normal thyroid function, increasing thyroid type 1 deiodinase activity, serum T3 levels and sodium/iodide symporter function. However, the effects are time- and retinoic acid isomer-dependent. Since serum thyrotropin levels did not change in any group, the effects observed are probably mediated by a direct retinoic acid effect on the normal thyroid.
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Affiliation(s)
- Alba Cenélia M Silva
- Laboratório de Fisiologia Endócrina from Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
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Costa SS, Muzitano MF, Camargo LMM, Coutinho MAS. Therapeutic Potential of Kalanchoe Species: Flavonoids and other Secondary Metabolites. Nat Prod Commun 2008. [DOI: 10.1177/1934578x0800301236] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
The Kalanchoe genus (syn. Bryophyllum), family Crassulaceae, comprises 125 species, most of them native to Madagascar. The great importance of several of these species for the traditional medicine in several regions of the World, esspecially India, Africa, China and Brazil, stimulated research programs into these plants from both a pharmacological and chemical point of view. The present review focuses on the main results obtained during the last decade on the secondary metabolites isolated from these species – endowed or not with a specific biological profile – with emphasis on flavonoids. The distribution of these molecules in the genus will be summarized and special attention will be given to K. brasiliensis and K. pinnata, two species well-known for healing inflammatory and infectious processes. Ornamental Kalanchoe species are also discussed as a potential source of bioactive compounds. This review covers the period 1970–2008.
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Affiliation(s)
- Sônia S. Costa
- Núcleo de Pesquisas de Produtos Naturais, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Michelle F. Muzitano
- Núcleo de Pesquisas de Produtos Naturais, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
- Laboratório de Biologia do Reconhecer, Centro de Biociências e Biotecnologia, Universidade Estadual do Norte Fluminense Darcy Ribeiro, Campos dos Goytacazes, RJ, Brazil
| | - Luiza M. M. Camargo
- Núcleo de Pesquisas de Produtos Naturais, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Marcela A. S. Coutinho
- Núcleo de Pesquisas de Produtos Naturais, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
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Abstract
The aging is associated with alterations in the hypothalamic-pituitary-thyroidal axis which can lead to hypothyreosis. Our previous investigations has shown that polyphenol curcumin can enhance the manifestation of hypothyreosis in rats simultaneous treated with propylthiouracil. The aim of the study was to investigate the relationship between age-related changes and curcumin action in the thyroid of old rats. To this end, morphometric and radioimmunological methods were used. The study was conducted on 3- and 18-month-old male Wistar rats. The experimental rats were treated daily for 30 days by gavage with 100 mg/kg b.w. of curcumin. There were observed age-related changes in morphology and endocrine function of the thyroid. It was increase in the percentages of large follicles and significant decrease in FT3 level in 18-month-old rats in comparison to 3-month ones. Curcumin treatment lead to significant increase in FT3 and FT4 levels in 3-month-old experimental rats, but the level of FT3 significantly decreased in 18-month-old rats after curcumin administration. Our results show that curcumin activity depends on the functional condition of the rat thyroid which changes with age. This compound exerts stimulatory influence on the secretory function of the thyroid gland in young rats, but has rather weak antithyroid activity in old animals.
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Ferreira ACF, Lisboa PC, Oliveira KJ, Lima LP, Barros IA, Carvalho DP. Inhibition of thyroid type 1 deiodinase activity by flavonoids. Food Chem Toxicol 2002; 40:913-7. [PMID: 12065212 DOI: 10.1016/s0278-6915(02)00064-9] [Citation(s) in RCA: 69] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Some dietary flavonoids inhibit thyroperoxidase and hepatic deiodinase activity, indicating that these compounds could be classified as anti-thyroid agents. In this study, we evaluated the in vitro effect of various flavonoids on thyroid type 1 iodothyronine deiodinase activity (D1). D1 activity was measured in murine thyroid microsome fractions by the release of 125I from 125I-reverse T3. D1 activity was significantly inhibited by all the flavonoids tested; however, the inhibitory potencies on thyroid D1 activity differed greatly among them. A 50% inhibition of D1 activity (IC(50)) was obtained at 11 microM baicalein, 13 microM quercetin, 17 microM catechin, 55 microM morin, 68 microM rutin, 70 microM fisetin, 72 microM kaempferol and 77 microM biochanin A. Our data reinforce the concept that dietary flavonoids might behave as antithyroid agents, and possibly their chronic consumption could alter thyroid function.
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Affiliation(s)
- A C F Ferreira
- Laboratório de Fisiologia Endócrina, Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Brazil
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