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1.
Chem Biodivers ; 21(4): e202301946, 2024 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-38433095

RESUMEN

In Turkish folk medicine, the roots of Onosma armeniacum Klokov are used to heal wounds, burns, hemorrhoids, hoarseness, dyspnea, stomach ulcers, and abdominal aches. The objective was to evaluate the plant's ethnopharmacological applications using in vivo pharmacological experimental models. In vivo linear incision and circular excision the wound models were used to assess the wound healing activity along with histopathological investigation. The active component(s) were isolated and identified after being exposed to several chromatographic separation procedures on the primary extract. The n-hexane-dichloromethane mixture extract was subjected to chromatographic separation after the wound-healing activity was confirmed. Deoxyshikonin (1), ß,ß-dimethylacrylshikonin (2), α-methyl-n-butylshikonin (3), isovalerylshikonin (4), acetylshikonin (5), ß-hydroxyisovalerylshikonin (6), and 5,8-O-dimethylacetylshikonin (7) were identified as the structures of the isolated compounds. The efficacy of O. armeniacum to heal wounds was investigated in this study. Shikonin derivatives were identified as the primary active components of the roots by bioassay-guided fractionation and isolation procedures.


Asunto(s)
Boraginaceae , Naftoquinonas , Boraginaceae/química , Extractos Vegetales/química , Cicatrización de Heridas , Raíces de Plantas/química , Naftoquinonas/química
2.
Expert Rev Mol Med ; 25: e13, 2023 03 30.
Artículo en Inglés | MEDLINE | ID: mdl-36994671

RESUMEN

The term 'autophagy' literally translates to 'self-eating' and alterations to autophagy have been identified as one of the several molecular changes that occur with aging in a variety of species. Autophagy and aging, have a complicated and multifaceted relationship that has recently come to light thanks to breakthroughs in our understanding of the various substrates of autophagy on tissue homoeostasis. Several studies have been conducted to reveal the relationship between autophagy and age-related diseases. The present review looks at a few new aspects of autophagy and speculates on how they might be connected to both aging and the onset and progression of disease. Additionally, we go over the most recent preclinical data supporting the use of autophagy modulators as age-related illnesses including cancer, cardiovascular and neurodegenerative diseases, and metabolic dysfunction. It is crucial to discover important targets in the autophagy pathway in order to create innovative therapies that effectively target autophagy. Natural products have pharmacological properties that can be therapeutically advantageous for the treatment of several diseases and they also serve as valuable sources of inspiration for the development of possible new small-molecule drugs. Indeed, recent scientific studies have shown that several natural products including alkaloids, terpenoids, steroids, and phenolics, have the ability to alter a number of important autophagic signalling pathways and exert therapeutic effects, thus, a wide range of potential targets in various stages of autophagy have been discovered. In this review, we summarised the naturally occurring active compounds that may control the autophagic signalling pathways.


Asunto(s)
Productos Biológicos , Neoplasias , Humanos , Longevidad , Autofagia , Envejecimiento , Neoplasias/tratamiento farmacológico
3.
Crit Rev Microbiol ; 49(1): 117-149, 2023 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-35313120

RESUMEN

Most human infectious diseases are caused by microorganisms growing as biofilms. These three-dimensional self-organized communities are embedded in a dense matrix allowing microorganisms to persistently inhabit abiotic and biotic surfaces due to increased resistance to both antibiotics and effectors of the immune system. Consequently, there is an urgent need for novel strategies to control biofilm-associated infections. Natural products offer a vast array of chemical structures and possess a wide variety of biological properties; therefore, they have been and continue to be exploited in the search for potential biofilm inhibitors with a specific or multi-locus mechanism of action. This review provides an updated discussion of the major bioactive compounds isolated from several natural sources - such as plants, lichens, algae, microorganisms, animals, and humans - with the potential to inhibit biofilm formation and/or to disperse established biofilms by bacterial pathogens. Despite the very large number of bioactive products, their exact mechanism of action often remains to be clarified and, in some cases, the identity of the active molecule is still unknown. This knowledge gap should be filled thus allowing development of these products not only as novel drugs to combat bacterial biofilms, but also as antibiotic adjuvants to restore the therapeutic efficacy of current antibiotics.


Asunto(s)
Bacterias , Productos Biológicos , Animales , Humanos , Biopelículas , Antibacterianos/química , Productos Biológicos/farmacología
4.
Chem Biodivers ; 20(12): e202301529, 2023 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-37955210

RESUMEN

The study's objective is to clarify the probable mechanisms underlying the wound-healing properties of Helianthemum canum L. (Cistaceae), a traditional anti-inflammatory and wound-healing medicine. LC/MS-MS was used to perform phytochemical analyses on a 70 % methanol extract of the plant's aerial parts. In vivo, linear incision and circular excision models were used to evaluate the wound healing activity. For anti-inflammatory effect, in vivo acetic acid capillary permeability assay and in vitro Interleukin 1, Interleukin 6, and Interferon É£ levels in LPS-induced FR skin fibroblast cell line were also evaluated. The extract significantly improved wound healing in experimental models, with tensile strength values of 27.8 % and a contraction value of 35.09 %. Histopathological examinations, hydroxyproline estimation, hyaluronidase, collagenase, and elastase enzyme inhibitory assays confirmed wound healing potential. Inflammatory cytokines were significantly inhibited in the LPS-induced FR cell line, with the highest effect seen on IL-6 (34.5±2.12 pg/mL). This study offered the first concrete proof that H. canum can be used to treat wounds by suggesting that the myricetin and quinic acid content identified by LCMS-MS analysis may be accountable for the effect of H. canum on wound contraction and hydroxyproline production.


Asunto(s)
Cistaceae , Extractos Vegetales , Ratas , Animales , Extractos Vegetales/química , Ratas Sprague-Dawley , Hidroxiprolina/metabolismo , Lipopolisacáridos/farmacología , Cicatrización de Heridas , Fitoquímicos/farmacología , Antiinflamatorios/farmacología , Antiinflamatorios/uso terapéutico , Cistaceae/metabolismo
5.
Nutr Cancer ; 74(4): 1457-1473, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-34291706

RESUMEN

Liquidambar orientalis Mill. var. orientalis (Hammamelidaceae) commonly known as oriental sweet gum is a medicinal plant endemic to Turkey, and used for treatment of wounds such as ulcers, gastritis and skin diseases. However, there are only a limited number of studies on the anticancer properties of this plant. The aim of this study is to investigate the cellular and molecular mechanisms of L. orientalis in colorectal cancer cell lines and to reveal the active therapeutic components. Antioxidant, anti-proliferative, anti-invasive and apoptotic effects were investigated for determining biological activities. The phytochemical profile and quantitation assays were carried out by using HPLC-ESI-Q-TOF-MS. The results demonstrated that leaf methanol extract (LM) of L. orientalis has the highest cytotoxic activity in HCT-116 (IC50 27.80 µg/mL) and HT-29 (IC50 43.13 µg/mL) cell lines as compared to the other extracts tested. Regarding chemical composition, quercetin 3-glucoside (61.005 ± 1.527 mg/g extract), chlorogenic acid (31.627 ± 0.970 mg/g extract), pyrogallol (9.950 ± 0.001 mg/g extract), epigallocatechin gallate (9.671 ± 0.004 mg/g extract), apigenin 7-O-glucoside (2.687 ± 0.027 mg/g extract), gallic acid (2.137 ± 0.012 mg/g extract), genistin (1.270 ± 0.027 mg/g extract), luteolin (0.055 ± 0.0005 mg/g extract) and kaempferol (0.506 ± 0.007 mg/g extract) were identified as the major phytochemical compounds. Our results showed that LM extract exhibited In Vitro cytotoxic and apoptotic properties.


Asunto(s)
Neoplasias Colorrectales , Liquidambar , Antioxidantes/farmacología , Neoplasias Colorrectales/tratamiento farmacológico , Glucósidos , Humanos , FN-kappa B , Fitoquímicos/farmacología , Extractos Vegetales/química , Extractos Vegetales/farmacología
6.
Crit Rev Food Sci Nutr ; 62(30): 8467-8496, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-34058922

RESUMEN

This review highlights main bioactive compounds and important biological functions especially anticancer effects of the garlic. In addition, we review current literature on the stability and bioavailability of garlic components. Finally, this review aims to provide a potential strategy for using nanotechnology to increase the stability and solubility of garlic components, providing guidelines for the qualities of garlic products to improve their absorption and prevent their early degradation, and extend their circulation time in the body. The application of nanotechnology to improve the bioavailability and targeting of garlic compounds are expected to provide a theoretical basis for the functional components of garlic to treat human health. We review the improvement of bioavailability and bioactivity of garlic bioactive compounds via nanotechnology, which could promisingly overcome the limitations of conventional garlic products, and would be used to prevent and treat cancer and other diseases in the near future.


Asunto(s)
Ajo , Humanos , Disponibilidad Biológica , Antioxidantes , Nanotecnología , Solubilidad
7.
Arch Toxicol ; 96(5): 1257-1277, 2022 05.
Artículo en Inglés | MEDLINE | ID: mdl-35199243

RESUMEN

Tannins are an interesting class of polyphenols, characterized, in almost all cases, by a different degree of polymerization, which, inevitably, markedly influences their bioavailability, as well as biochemical and pharmacological activities. They have been used for the process of tanning to transform hides into leather, from which their name derives. For several time, they have not been accurately evaluated, but now researchers have started to unravel their potential, highlighting anti-inflammatory, antimicrobial, antioxidant and anticancer activities, as well as their involvement in cardiovascular, neuroprotective and in general metabolic diseases prevention. The mechanisms underlying their activity are often complex, but the main targets of their action (such as key enzymes modulation, activation of metabolic pathways and changes in the metabolic fluxes) are highlighted in this review, without losing sight of their toxicity. This aspect still needs further and better-designed study to be thoroughly understood and allow a more conscious use of tannins for human health.


Asunto(s)
Polifenoles , Taninos , Antiinflamatorios , Antioxidantes/metabolismo , Antioxidantes/farmacología , Disponibilidad Biológica , Humanos , Taninos/química , Taninos/metabolismo , Taninos/farmacología
8.
Compr Rev Food Sci Food Saf ; 21(5): 4422-4446, 2022 09.
Artículo en Inglés | MEDLINE | ID: mdl-35904246

RESUMEN

The growing interest in foods that can be beneficial to human health is bringing into focus some products that have been used locally for centuries but have recently gained worldwide attention. One of these foods is pumpkin seed oil, which has been used in culinary and traditional medicine, but recent data also show its use in the pharmaceutical and cosmetic industries. In addition, some sources refer to it as a potential functional food, mainly because it is obtained from pumpkin seeds, which contain many functional components. However, the production process of the oil may affect the content of these components and consequently the biological activity of the oil. In this review, we have focused on summarizing scientific data that explore the potential of pumpkin seed oil as a functional food ingredient. We provide a comprehensive overview of pumpkin seed oil chemical composition, phytochemical content, biological activity, and safety, as well as the overview of production processes and contemporary use. The main phytochemicals in pumpkin seed oil with health-related properties are polyphenols, phytoestrogens, and fatty acids, but carotenoids, squalene, tocopherols, and minerals may also contribute to health benefits. Most studies have been conducted in vitro and support the claim that pumpkin seed oil has antioxidant and antimicrobial activities. Clinical studies have shown that pumpkin seed oil may be beneficial in the treatment of cardiovascular problems of menopausal women and ailments associated with imbalance of sex hormones.


Asunto(s)
Antiinfecciosos , Cucurbita , Ingredientes Alimentarios , Antioxidantes/farmacología , Carotenoides , Cucurbita/química , Ácidos Grasos/química , Femenino , Alimentos Funcionales , Humanos , Preparaciones Farmacéuticas , Fitoquímicos , Fitoestrógenos , Aceites de Plantas/química , Aceites de Plantas/farmacología , Polifenoles , Escualeno , Tocoferoles
9.
Nutr Cancer ; 73(7): 1228-1243, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-32691634

RESUMEN

Rheum ribes L. is a widespread plant species in the eastern part of our country and is consumed as a vegateble by the folk people. In our study, we investigated whether R. ribes has anti-cancerogenic effect on colorectal cancer cell lines. Six different extracts were obtained from R. ribes. Total phenolic, flavonoid contents, antioxidant activities, and cytotoxic effects of all extracts on colorectal cancer cells were determined. Differences in expression levels of the miR-200 family and target genes were assessed by real-time qPCR in cells. Antiproliferative effect was determined by TUNEL, Annexin V, cell cycle, invasion analysis; and levels of BCL-2, ZEB1, GATA4 and FAS/CD95 proteins were determined by ELISA. According to the results of miRNA expression analysis, the only dose group with a significant increase (p < 0,05) in the expression level of all of miRNAs in both cell lines was RM (Root methanol) extract alone. Our results showed that, RM caused a significant increase in the expressions of miR-200a/b/c and miR-141, and it suppressed BCL-2, ZEB1, GATA4 expressions, with this way. Thus, it has been suggested that the treatment of RM alone, or combined treatment of RM with 5-FU result in a better response than cancer cells treated with 5-FU alone.


Asunto(s)
Antineoplásicos Fitogénicos/farmacología , Neoplasias Colorrectales , MicroARNs , Extractos Vegetales , Rheum , Apoptosis , Línea Celular Tumoral , Proliferación Celular , Neoplasias Colorrectales/tratamiento farmacológico , Neoplasias Colorrectales/genética , Humanos , MicroARNs/genética , Extractos Vegetales/farmacología , Rheum/química
10.
Crit Rev Food Sci Nutr ; 61(10): 1616-1639, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-32478608

RESUMEN

Irrespective of sex and age, cancer is the leading cause of mortality around the globe. Therapeutic incompliance, unwanted effects, and economic burdens imparted by cancer treatments, are primary health challenges. The heritable features in gene expression that are propagated through cell division and contribute to cellular identity without a change in DNA sequence are considered epigenetic characteristics and agents that could interfere with these features and are regarded as potential therapeutic targets. The genetic modification accounts for the recurrence and uncontrolled changes in the physiology of cancer cells. This review focuses on plant-derived flavonoids as a therapeutic tool for cancer, attributed to their ability for epigenetic regulation of cancer pathogenesis. The epigenetic mechanisms of various classes of flavonoids including flavonols, flavones, isoflavones, flavanones, flavan-3-ols, and anthocyanidins, such as cyanidin, delphinidin, and pelargonidin, are discussed. The outstanding results of preclinical studies encourage researchers to design several clinical trials on various flavonoids to ascertain their clinical strength in the treatment of different cancers. The results of such studies will define the clinical fate of these agents in future.


Asunto(s)
Flavonoides , Neoplasias , Dieta , Epigénesis Genética , Flavonoles , Humanos , Neoplasias/tratamiento farmacológico , Neoplasias/genética
11.
Molecules ; 26(9)2021 Apr 21.
Artículo en Inglés | MEDLINE | ID: mdl-33919399

RESUMEN

Wound healing involves a series of cellular events in damaged cells and tissues initiated with hemostasis and finally culminating with the formation of a fibrin clot. However, delay in the normal wound healing process during pathological conditions due to reactive oxygen species, inflammation and immune suppression at the wound site represents a medical challenge. So far, many therapeutic strategies have been developed to improve cellular homeostasis and chronic wounds in order to accelerate wound repair. In this context, the role of Nuclear factor erythroid 2-related factor 2 (Nrf2) during the wound healing process has been a stimulating research topic for therapeutic perspectives. Nrf2 is the main regulator of intracellular redox homeostasis. It increases cytoprotective gene expression and the antioxidant capacity of mammalian cells. It has been reported that some bioactive compounds attenuate cellular stress and thus accelerate cell proliferation, neovascularization and repair of damaged tissues by promoting Nrf2 activation. This review highlights the importance of the Nrf2 signaling pathway in wound healing strategies and the role of bioactive compounds that support wound repair through the modulation of this crucial transcription factor.


Asunto(s)
Factor 2 Relacionado con NF-E2/metabolismo , Transducción de Señal , Cicatrización de Heridas/fisiología , Animales , Apoptosis , Autofagia , Biomarcadores , Movimiento Celular , Proliferación Celular , Citoprotección/genética , Regulación de la Expresión Génica , Humanos , Oxidación-Reducción , Estrés Oxidativo , Especies Reactivas de Oxígeno/metabolismo , Piel/metabolismo
12.
Compr Rev Food Sci Food Saf ; 19(6): 3191-3218, 2020 11.
Artículo en Inglés | MEDLINE | ID: mdl-33337062

RESUMEN

Phytochemicals, especially polyphenols, are gaining more attention from both the scientific community and food, pharmaceutical, and cosmetics industries due to their implications in human health. In this line, lately new applications have emerged, and of great importance is the selection of accurate and reliable analytical methods for better evaluation of the quality of the end-products, which depends on diverse process variables as well as on the matrices and on the physicochemical properties of different polyphenols. The first of a two-part review on polyphenols will address the phytochemistry and biological activities of different classes of polyphenols including flavonoids, lignans and flavanolignans, stilbenoids, tannins, curcuminoids, and coumarins. Moreover, the possible interactions of polyphenols and current and potential industrial applications of polyphenols are discussed.


Asunto(s)
Fitoquímicos , Polifenoles/análisis , Polifenoles/química , Polifenoles/farmacología
13.
Pharmacol Res ; 141: 466-480, 2019 03.
Artículo en Inglés | MEDLINE | ID: mdl-30639373

RESUMEN

The Hedgehog pathway is essential for embryonic development but also for tissue and organ homeostasis in adult organisms. Activation of this pathway leads to the expression of target genes involved in proliferation, angiogenesis and stem cell self-renewal. Moreover, abnormal persistence of Hedgehog signaling is directly involved in a wide range of human cancers. Development of novel strategies targeting the Hedgehog pathway has become a subject of increased interest in anticancer therapy. These data are sustained by pre-clinical studies demonstrating that Hedgehog pathway inhibitors could represent an effective strategy against a heterogeneous panel of malignancies. Limited activity in other tumor types could be explained by the existence of crosstalk between the Hedgehog pathway and other signaling pathways that can compensate for its function. This review describes the Hedgehog pathway in detail, with its physiological roles during embryogenesis and adult tissues, and summarizing the preclinical evidence on its inhibition, the crosstalk between Hedgehog and other cancer-related pathways and finally the potential therapeutic effects of emerging compounds.


Asunto(s)
Antineoplásicos/farmacología , Proteínas Hedgehog/metabolismo , Terapia Molecular Dirigida/métodos , Neoplasias/tratamiento farmacológico , Transducción de Señal/efectos de los fármacos , Animales , Antineoplásicos/uso terapéutico , Humanos , Neoplasias/metabolismo , Neoplasias/patología , Receptores Notch/metabolismo , Receptores del Factor de Crecimiento Derivado de Plaquetas/metabolismo , Proteínas Smad/metabolismo , Factor de Crecimiento Transformador beta/metabolismo
14.
Phytother Res ; 32(2): 185-198, 2018 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-29044858

RESUMEN

Medicinal plants have always had great value for the human population due to their valuable constituents and potential bioactivities. The objective of this review is to present an updated overview of an important medicinal plant genus Nepeta L., from the family Lamiaceae, revealing its traditional utilization, biological activity, phytoconstituents, and mechanisms of action. For this purpose, a literature survey was carried out by using SciFinder, ScienceDirect, Scopus, PubMed, and Web of Science followed by a revision of the bibliographies of the related articles. We have described and analyzed the role of plants in drug discovery and the importance of Nepeta species. Information on the utilization purposes of Nepeta species in folk medicine has been emphasized, and scientific studies on the biological effects and secondary metabolites are addressed. Nepeta species are characterized by terpenoid-type compounds and phenolic constituents, which exert several activities such as an antimicrobial, repellent against major pathogen vector mosquitoes, insecticide, larvicide against Anopheles stephensi, cytotoxic anticarcinogen, antioxidant, anticonvulsant, analgesic, anti-inflammatory agent, and antidepressant, revealing its importance in medicinal and agricultural fields. On the basis of numerous studies, the Nepeta genus demonstrates remarkable therapeutic effects against various diseases. However, clinical studies are warranted to confirm preclinical findings.


Asunto(s)
Medicina Tradicional/métodos , Nepeta/química , Fitoterapia/métodos , Plantas Medicinales/efectos de los fármacos , Humanos
15.
Pharm Biol ; 54(6): 1065-70, 2016.
Artículo en Inglés | MEDLINE | ID: mdl-26510970

RESUMEN

CONTEXT: One traditional medicines, Hypericum perforatum L. (Hypericaceae), possesses several beneficial effects against depression, ulcers, dyspepsia, abdominal pains, burns, bacterial infections, migraine headaches, and sciatica. OBJECTIVE: The present study investigates the antimicrobial activity of the ethanol extract (HP-EtOH) of H. perforatum and its sub-extracts, namely n-hexane (HP-hexane), chloroform (HP-CHCl3), ethyl acetate (HP-EtOAc), n-butanol (HP-n-BuOH), and water (HP-H2O) extracts, against Streptococcus mutans, S. sobrinus, Lactobacillus plantarum, and Enterococcus faecalis. MATERIALS AND METHODS: For the evaluation of the antimicrobial activity, flowering aerial parts of H. perforatum were extracted with EtOH and then this extract was fractionated to obtain five sub-extracts in different polarities. Antimicrobial activities of HP-EtOH and its sub-extracts against Streptococcus mutans, S. sobrinus, L. plantarum, and E. faecalis were assessed by using colorimetric micro-well dilution at concentration ranges of 64-0.5 µg/ml as well as resazurin microplate and modified microtiter-plate assays between the ranges of 100 and 0.78125 µg/ml. RESULTS: According to the results of the present study, HP-H2O sub-extract displayed strong antibacterial activity (MIC values 8 µg/mL) against S. sobrinus and L. plantarum, and exerted moderate activity against S. mutans and E. faecalis at 32 and 16 µg/mL concentrations, respectively. Other sub-extracts also demonstrated antimicrobial activity against S. sobrinus at a concentration of 16 µg/mL. HP-EtOAc and HP-n-BuOH showed antimicrobial activity against L. plantarum and HP-EtOAc and HP-H2O were also active against E. faecalis at the same concentrations (16 µg/mL). CONCLUSION: According to the results, we suggest that H. perforatum could be employed as a natural antibacterial agent in oral care products.


Asunto(s)
Antibacterianos/farmacología , Biopelículas/efectos de los fármacos , Hypericum/química , Boca/microbiología , Extractos Vegetales/farmacología , Antibacterianos/aislamiento & purificación , Biopelículas/crecimiento & desarrollo , Relación Dosis-Respuesta a Droga , Enterococcus faecalis/efectos de los fármacos , Enterococcus faecalis/crecimiento & desarrollo , Humanos , Lactobacillus plantarum/efectos de los fármacos , Lactobacillus plantarum/crecimiento & desarrollo , Pruebas de Sensibilidad Microbiana , Componentes Aéreos de las Plantas/química , Extractos Vegetales/aislamiento & purificación , Streptococcus mutans/efectos de los fármacos , Streptococcus mutans/crecimiento & desarrollo , Streptococcus sobrinus/efectos de los fármacos , Streptococcus sobrinus/crecimiento & desarrollo
16.
Arch Gynecol Obstet ; 292(3): 619-28, 2015 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-25700659

RESUMEN

PURPOSE: The aim of the present study is to evaluate the treatment potential of Alchemilla mollis (Buser) Rothm. and Alchemilla persica Rothm. in the experimentally induced endometriosis model in rats. METHODS: Endometriosis was surgically induced in rats by autotransplanting endometrial tissue to abdominal wall. Thirty-six rats were randomly divided into six groups. The groups were orally treated with the methanol:water (80:20) extracts of aerial parts and roots of A. mollis and A. persica. Buserelin acetate (20 mg) was used as the reference drug. The phytochemical contents of the most active extracts were determined by high performance liquid chromatography. RESULTS: The cystic formation was determined to be significantly decreased with the aerial part extract of A. mollis. A reduction in the endometrioma was also determined for the aerial part extract of A. persica group. However, significant reduction on the levels of cytokine were recorded for the A. mollis aerial part extract group. Therefore, the phytochemical contents of the aerial part extracts of A. mollis. and A. persica were analyzed. CONCLUSION: The results of the present study revealed that the aerial part extracts of A. mollis and A. persica could be beneficial in the treatment of endometriosis.


Asunto(s)
Alchemilla/química , Endometriosis/tratamiento farmacológico , Fitoterapia , Extractos Vegetales/administración & dosificación , Animales , Cromatografía Líquida de Alta Presión , Endometriosis/metabolismo , Femenino , Humanos , Masculino , Componentes Aéreos de las Plantas/química , Extractos Vegetales/uso terapéutico , Raíces de Plantas/química , Ratas , Ratas Sprague-Dawley
17.
Bioorg Med Chem ; 21(7): 1834-43, 2013 Apr 01.
Artículo en Inglés | MEDLINE | ID: mdl-23434134

RESUMEN

Wound healing is a significant concern in many pathologies (post-surgeries, burns, scars) and the search for new chemical entities is advisable. The lichen compound (+)-usnic acid (1) has found application in dermatological and cosmetic preparations, due to its bacteriostatic and antioxidant activities. The compound has also been shown to stimulate the wound closure of keratinocyte monolayers at subtoxic doses. Here we describe the design and synthesis of usnic acid enamines (compounds 2-11), obtained through nucleophilic attack of amino acids or decarboxyamino acids at the acyl carbonyl of the enolized 1,3 diketone. The wound repair properties of these derivatives were evaluated using in vitro and in vivo assays. Compounds 8 and 9 combine low cytotoxicity with high wound healing performance, suggesting their possible use in wound healing-promoting or antiage skin preparations.


Asunto(s)
Antiinfecciosos/química , Antiinfecciosos/uso terapéutico , Benzofuranos/química , Benzofuranos/uso terapéutico , Líquenes/química , Cicatrización de Heridas/efectos de los fármacos , Animales , Antiinfecciosos/toxicidad , Antioxidantes/química , Antioxidantes/uso terapéutico , Antioxidantes/toxicidad , Benzofuranos/toxicidad , Línea Celular , Supervivencia Celular/efectos de los fármacos , Humanos , Queratinocitos/citología , Queratinocitos/efectos de los fármacos , Masculino , Ratones , Ratas , Ratas Sprague-Dawley
18.
Pharm Biol ; 51(8): 1008-13, 2013 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-23768252

RESUMEN

CONTEXT: Liverworts (Marchantiophyta) are the second largest group of bryophytes exhibiting promising pharmacological and biological activities. They have been used as remedies for cuts, fractures, burns, bruises, open wounds, inflammation and pneumonia. OBJECTIVE: In the present study, eight liverwort species [Corsinia coriandrina (Spreng.) Lindb. (Corsiniaceae), Mannia androgyna (L.) A. Evans (Aytoniaceae), Plagiochasma rupestre (J.R. Forst et G. Forst) Steph. (Aytoniaceae), Porella cordaeana (Huebener) Moore (Porellaceae), Porella platyphylla (L.) Pfeiff. (Porellaceae), Reboulia hemisphaerica (L.) Raddi (Aytoniaceae), Riccia fluitans L. (Ricciaceae), and Targionia hypophylla L. (Targioniaceae)] have been investigated for their phytochemical composition and pharmacological effects as a function of anti-inflammatory and antinociceptive potentials, in connection with the major volatile components of the extracts. MATERIAL AND METHODS: The chemical compositions of these species and major constituents were identified using GC/MS. In addition, carrageenan-induced paw edema and p-benzoquinone-induced abdominal constriction models were used for the activity assessments. RESULTS: Sesquiterpenes were detected as common constituents of all liverworts. The in vivo experimental models revealed that P. cordeana, P. rupestre and R. haemispherica show significant inhibitory effect on carrageenan-induced paw edema with the inhibition values of 25.4, 27.2 and 29.4%, respectively. Porella cordaeana, P. platyphylla, P. rupestre and R. haemispherica exhibit promising suppressing effect on p-benzoquinone-induced abdominal constriction animal models with the values of 27.6, 31.5, 44.6, and 41.1%, respectively. DISCUSSION: It is suggested that the sesquiterpenes are partly responsible for mentioned activities of the liverworts. CONCLUSION: The present study confirms the claimed anti-inflammatory activity of liverworts in a scientific platform.


Asunto(s)
Analgésicos/farmacología , Antiinflamatorios/farmacología , Hepatophyta/química , Extractos Vegetales/farmacología , Analgésicos/aislamiento & purificación , Animales , Antiinflamatorios/aislamiento & purificación , Benzoquinonas/toxicidad , Carragenina/toxicidad , Modelos Animales de Enfermedad , Edema/tratamiento farmacológico , Edema/fisiopatología , Inflamación/tratamiento farmacológico , Inflamación/fisiopatología , Masculino , Ratones , Dolor/tratamiento farmacológico , Dolor/fisiopatología , Sesquiterpenos/aislamiento & purificación , Sesquiterpenos/farmacología
19.
J Clin Res Pediatr Endocrinol ; 15(2): 145-153, 2023 05 29.
Artículo en Inglés | MEDLINE | ID: mdl-36597761

RESUMEN

Objective: This study was planned to determine the effects of carob use on puberty because of the observation of early puberty or pubertal variants due to the long-term use of carob in our clinic. Methods: Forty-eight Wistar albino rats, on postnatal day 21, were assigned into two groups female (n=24) and male (n=24). Groups were divided into four groups Control, and Carob-150, Carob-300, and Carob-600. Ceratonia siliqua L. extract was given to rats in a 0.5% carboxymethylcellulose (CMC) solution. CMC (0.5%) was given to the control, Ceratonia siliqua L. extract was given 150 mg/kg/day to the Carob-150, 300 mg/kg/day to the Carob-300, 600 mg/kg/day to the Carob-600 by oral gavage. The treatments were performed once daily until the first sign of puberty. Serum follicle stimulating hormone (FSH), luteinizing hormone (LH), estradiol, total testosterone, leptin, glutathione, glutathione peroxidase (GPx), and malondialdehyde were measured by commercial rat-specific ELISA kits. Testis, uterus and ovarian tissue were examined histologically. Results: The median time of preputial separation in male rats was 38th, 31st, 31st, and 31st days in the Control, Carob-150, Carob-300, and Carob-600 groups, respectively (p=0.004). The median day of vaginal opening day was the 39th, 31st, 34th, and 31st days in the Control, Carob-150, Carob-300, and Carob-600 groups, respectively (p=0.059). FSH, LH, testosterone (male), estradiol (female) and leptin levels of the groups were similar. However, GPx levels were higher in male and female animals given C. siliqua extract compared to the Control (male p=0.001 and female p=0.008). Testicular and ovarian tissues were concordant with the pubertal period in all groups. As the dose of Ceratonia siliqua extract increased, it induced spermatogenesis and spermiogenesis, causing abnormal changes, such as ondulation in the basement membrane, capillary dilatation, and increased congestion in males. In females, edema in the medulla gradually increased with increased dosage, and granulosa cell connections were separated in Carob-300 and Carob-600 groups. Conclusion: This study demonstrated that C. siliqua caused early puberty and increased spermiogenesis and folliculogenesis. Antioxidant mechanisms were impaired with increasing dose, possibly leading to tissue damage at high doses.


Asunto(s)
Fabaceae , Frutas , Femenino , Animales , Ratas , Masculino , Humanos , Leptina , Ratas Wistar , Extractos Vegetales/farmacología , Pubertad
20.
Artículo en Inglés | MEDLINE | ID: mdl-21941588

RESUMEN

Juniperus and Cupressus genera are mainly used as diuretic, stimulant, and antiseptic, for common cold and wound healing in Turkish folk medicine. In the present study, essential oils obtained from cones of Cupressus and berries of Juniperus were evaluated for their wound healing and anti-inflammatory effects. In vivo wound healing activity was evaluated by linear incision and circular excision experimental wound models, assessment of hydroxyproline content, and subsequently histopathological analysis. The healing potential was comparatively assessed with a reference ointment Madecassol. Additionally acetic-acid-induced capillary permeability test was used for the oils' anti-inflammatory activity. The essential oils of J. oxycedrus subsp. oxycedrus and J. phoenicea demonstrated the highest activities, while the rest of the species did not show any significant wound healing effect. The experimental study revealed that J. oxycedrus subsp. oxycedrus and J. phoenicea display remarkable wound healing and anti-inflammatory activities, which support the folkloric use of the plants.

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