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Mert-Ozupek N, Calibasi-Kocal G, Olgun N, Basbinar Y, Cavas L, Ellidokuz H. In-silico molecular interactions among the secondary metabolites of Caulerpa spp. and colorectal cancer targets. Front Chem 2022; 10:1046313. [PMID: 36561138 PMCID: PMC9763605 DOI: 10.3389/fchem.2022.1046313] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2022] [Accepted: 11/22/2022] [Indexed: 12/12/2022] Open
Abstract
Caulerpa spp. secrete more than thirty different bioactive chemicals which have already been used in cancer treatment research since they play a pivotal role in cancer metabolism. Colorectal cancer is one of the most common cancer types, thus using novel and effective chemicals for colorectal cancer treatment is crucial. In the cheminformatics pipeline of this study, ADME-Tox and drug-likeness tests were performed for filtering the secondary metabolites of Caulerpa spp. The ligands which were selected from the ADME test were used for in silico molecular docking studies against the enzymes of the oxidative branch of the pentose phosphate pathway (glucose-6-phosphate dehydrogenase and 6-phosphoglutarate dehydrogenase), which is of great importance for colorectal cancer, by using AutoDock Vina. Pharmacophore modeling was carried out to align the molecules. Molecular dynamic simulations were performed for each target to validate the molecular docking studies and binding free energies were calculated. According to the ADME test results, 13 different secondary metabolites were selected as potential ligands. Molecular docking studies revealed that vina scores of caulerpin and monomethyl caulerpinate for G6PDH were found as -10.6 kcal mol-1, -10.5 kcal mol-1, respectively. Also, the vina score of caulersin for 6PGD was found as -10.7 kcal mol-1. The highest and the lowest binding free energies were calculated for monomethyl caulerpinate and caulersin, respectively. This in silico study showed that caulerpin, monomethyl caulerpinate, and caulersin could be evaluated as promising marine phytochemicals against pentose phosphate pathway enzymes and further studies are recommended to investigate the detailed activity of these secondary metabolites on these targets.
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Affiliation(s)
- Nazli Mert-Ozupek
- Department of Basic Oncology, Institute of Health Sciences, Dokuz Eylül University, İzmir, Türkiye
| | - Gizem Calibasi-Kocal
- Department of Translational Oncology, Institute of Oncology, Dokuz Eylül University, İzmir, Türkiye
| | - Nur Olgun
- Department of Pediatric Oncology, Institute of Oncology, Dokuz Eylül University, İzmir, Türkiye
| | - Yasemin Basbinar
- Department of Translational Oncology, Institute of Oncology, Dokuz Eylül University, İzmir, Türkiye
| | - Levent Cavas
- Department of Chemistry, Faculty of Sciences, Dokuz Eylül University, İzmir, Türkiye
| | - Hulya Ellidokuz
- Department of Preventive Oncology, Institute of Oncology, Dokuz Eylül University, İzmir, Türkiye,*Correspondence: Hulya Ellidokuz,
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Mert-Ozupek N, Calibasi-Kocal G, Olgun N, Basbinar Y, Cavas L, Ellidokuz H. An Efficient and Quick Analytical Method for the Quantification of an Algal Alkaloid Caulerpin Showed In-Vitro Anticancer Activity against Colorectal Cancer. Mar Drugs 2022; 20:md20120757. [PMID: 36547904 PMCID: PMC9781365 DOI: 10.3390/md20120757] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2022] [Revised: 11/23/2022] [Accepted: 11/23/2022] [Indexed: 12/02/2022] Open
Abstract
Biological invasion is the successful spread and establishment of a species in a novel environment that adversely affects the biodiversity, ecology, and economy. Both invasive and non-invasive species of the Caulerpa genus secrete more than thirty different secondary metabolites. Caulerpin is one of the most common secondary metabolites in genus Caulerpa. In this study, caulerpin found in invasive Caulerpa cylindracea and non-invasive Caulerpa lentillifera extracts were analyzed, quantified, and compared using high-performance thin layer chromatography (HPTLC) for the first time. The anticancer activities of caulerpin against HCT-116 and HT-29 colorectal cancer (CRC) cell lines were also tested. Caulerpin levels were found higher in the invasive form (108.83 ± 5.07 µg mL-1 and 96.49 ± 4.54 µg mL-1). Furthermore, caulerpin isolated from invasive Caulerpa decreased cell viability in a concentration-dependent manner (IC50 values were found between 119 and 179 µM), inhibited invasion-migration, and induced apoptosis in CRC cells. In comparison, no cytotoxic effects on the normal cell lines (HDF and NIH-3T3) were observed. In conclusion, HPTLC is a quick and novel method to investigate the caulerpin levels found in Caulerpa extracts, and this paper proposes an alternative utilization method for invasive C. cylindracea due to significant caulerpin content compared to non-invasive C. lentillifera.
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Affiliation(s)
- Nazli Mert-Ozupek
- Department of Basic Oncology, Institute of Health Sciences, Dokuz Eylül University, Izmir 35340, Turkey
| | - Gizem Calibasi-Kocal
- Department of Translational Oncology, Institute of Oncology, Dokuz Eylül University, Izmir 35340, Turkey
| | - Nur Olgun
- Department of Pediatric Oncology, Institute of Oncology, Dokuz Eylül University, Izmir 35340, Turkey
| | - Yasemin Basbinar
- Department of Translational Oncology, Institute of Oncology, Dokuz Eylül University, Izmir 35340, Turkey
| | - Levent Cavas
- Department of Chemistry, Faculty of Sciences, Dokuz Eylül University, Izmir 35390, Turkey
| | - Hulya Ellidokuz
- Department of Preventive Oncology, Institute of Oncology, Dokuz Eylül University, Izmir 35340, Turkey
- Correspondence: ; Tel.: +90-232-41258890
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Ángeles-López GE, González-Trujano ME, Rodríguez R, Déciga-Campos M, Brindis F, Ventura-Martínez R. Gastrointestinal activity of Justicia spicigera Schltdl. in experimental models. Nat Prod Res 2021; 35:1847-1851. [PMID: 31282754 DOI: 10.1080/14786419.2019.1637873] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Justicia spicigera Schltdl. (Acanthaceae) is used for treatment of gastrointestinal illnesses therapy in traditional medicine. The objective of this study was to give evidence of the antinociceptive and spasmolytic effects of the J. spicigera ethanol extract (JS EtOH) using in in vivo and/or in vitro assays. The JS EtOH exerted regulatory effect on the motility and a partial relaxing response on the intestinal tissue. Furthermore, a significant abdominal antinociceptive response was obtained in mice, which was totally abolished in the presence of 5-HT1A receptor antagonist (WAY100635, 0.1 mg/kg, s.c.) and partially by blocking opioid receptors (NX, 1 mg/kg, i.p.), whereas the inhibition of the NO synthesis (L-NAME, 30 mg/kg, i.p.) facilitated antinociception of this extract. Kaempferitrin was isolated and identified as major secondary metabolite. These results support the analgesic and spasmolytic-like activity of J. spicigera aerial parts involving inhibitory neurotransmission reinforcing the potential of this medicinal plant for alleviating pain.
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Affiliation(s)
- Guadalupe E Ángeles-López
- Departamento de Farmacología, Facultad de Medicina, Universidad Nacional Autónoma de México, Ciudad Universitaria, Coyoacán, Ciudad de México, México
| | - Ma Eva González-Trujano
- Laboratorio de Neurofarmacología de Productos Naturales, Dirección de Investigaciones en Neurociencias, Instituto Nacional de Psiquiatría Ramón de la Fuente Muñiz, Ciudad de México, México
| | - R Rodríguez
- Departamento de Farmacología, Facultad de Medicina, Universidad Nacional Autónoma de México, Ciudad Universitaria, Coyoacán, Ciudad de México, México
| | - M Déciga-Campos
- Sección de Estudios de Posgrado e Investigación, Escuela Superior de Medicina, Instituto Politécnico Nacional, Ciudad de México, México
| | - F Brindis
- Laboratorio Multidisciplinario de Investigación, Escuela de Graduados de Sanidad, SEDENA, Ciudad de México, México
| | - R Ventura-Martínez
- Departamento de Farmacología, Facultad de Medicina, Universidad Nacional Autónoma de México, Ciudad Universitaria, Coyoacán, Ciudad de México, México
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4
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Modulation of TRPV1 channel function by natural products in the treatment of pain. Chem Biol Interact 2020; 330:109178. [DOI: 10.1016/j.cbi.2020.109178] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2020] [Revised: 05/22/2020] [Accepted: 06/09/2020] [Indexed: 01/01/2023]
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Marine Pharmacology in 2014-2015: Marine Compounds with Antibacterial, Antidiabetic, Antifungal, Anti-Inflammatory, Antiprotozoal, Antituberculosis, Antiviral, and Anthelmintic Activities; Affecting the Immune and Nervous Systems, and Other Miscellaneous Mechanisms of Action. Mar Drugs 2019; 18:md18010005. [PMID: 31861527 PMCID: PMC7024264 DOI: 10.3390/md18010005] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2019] [Revised: 12/12/2019] [Accepted: 12/14/2019] [Indexed: 12/31/2022] Open
Abstract
The systematic review of the marine pharmacology literature from 2014 to 2015 was completed in a manner consistent with the 1998-2013 reviews of this series. Research in marine pharmacology during 2014-2015, which was reported by investigators in 43 countries, described novel findings on the preclinical pharmacology of 301 marine compounds. These observations included antibacterial, antifungal, antiprotozoal, antituberculosis, antiviral, and anthelmintic pharmacological activities for 133 marine natural products, 85 marine compounds with antidiabetic, and anti-inflammatory activities, as well as those that affected the immune and nervous system, and 83 marine compounds that displayed miscellaneous mechanisms of action, and may probably contribute to novel pharmacological classes upon further research. Thus, in 2014-2015, the preclinical marine natural product pharmacology pipeline provided novel pharmacology as well as new lead compounds for the clinical marine pharmaceutical pipeline, and thus continued to contribute to ongoing global research for alternative therapeutic approaches to many disease categories.
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Preliminary assessment of the anti-inflammatory and analgesic effects of methanol leaf extract of Cussonia barteri ( Araliaceae) in rodents. HERBA POLONICA 2019. [DOI: 10.2478/hepo-2019-0015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Summary
Introduction: Potato (Solanum tuberosum L.) is an important vegetable crop in Syria. Potato tuber moth Cussonia barteri is a small tree that grows in the sub-Saharan part of Africa. Various parts of the plant are used for the treatment of a variety of ailments in ethno-medicine.
Objective: To evaluate the anti-inflammatory and analgesic effect of the methanol leaf extract of Cussonia barteri.
Material and methods: The leaves were air-dried, powdered and repeatedly extracted with methanol using a Soxhlet apparatus. The resulting methanol extract (100, 200 and 400 mg/kg) was evaluated for anti-inflammatory activity using carrageenan-induced paw oedema, xylene-induced ear oedema and formalin-induced arthritis tests. Analgesic effect was evaluated using acetic acid-induced mouse writhing, hot plate and tail flick tests.
Results: All doses of the extract significantly (p<0.05) reduced carrageenan-induced paw oedema, however the 400 mg/kg dose gave a sustained effect. The extract significantly inhibited xylene induced ear oedema at all doses. There were no significant (p>0.05) reductions in paw swellings due to formalin. In the acetic acid induced writhing test, the extract significantly (p<0.05) decreased writhing at 400 mg/kg only. Reaction times were not significantly different from the control in the hot plate and tail flick tests.
Conclusion: This study has shown that the methanol extract possesses acute anti-inflammatory and peripherally mediated analgesic effects.
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Lunagariya J, Bhadja P, Zhong S, Vekariya R, Xu S. Marine Natural Product Bis-indole Alkaloid Caulerpin: Chemistry and Biology. Mini Rev Med Chem 2019; 19:751-761. [PMID: 28971770 DOI: 10.2174/1389557517666170927154231] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2016] [Revised: 05/05/2017] [Accepted: 08/15/2017] [Indexed: 12/19/2022]
Abstract
Marine bis-indole alkaloids comprise a large and increasingly growing class of secondary metabolites, and continue to deliver a great variety of structural templates for diverse biological targets. The alkaloids derived from marine resources play a crucial role in medicinal chemistry and as chemical agents. In particular, bis-indole alkaloid caulerpin which has been isolated from marine green algae Caulerpa and a red algae Chondria armata at various places around the world, was tested for several therapeutic potentials such as anti-diabetic, antinociceptive, anti-inflammatory, anti-tumor, anti- larvicidal, anti-herpes, anti-tubercular, anti-microbial and immunostimulating activities as well as a means of other chemical agents. Herein, we summarized the discovery and isolation of caulerpin, and its potential medicinal and chemical applications in chronological order with various aspects. Additionally, synthesis of caulerpin and its functional analogues have also been reviewed.
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Affiliation(s)
- Jignesh Lunagariya
- Department of Chemistry, College of Chemistry and Material Science, Jinan University, Guangzhou 510632, China
| | - Poonam Bhadja
- Institute of Biomineralization and Lithiasis Research, Jinan University, Guangzhou 510632, China
| | - Shenghui Zhong
- Department of Chemistry, College of Chemistry and Material Science, Jinan University, Guangzhou 510632, China
| | - Rohit Vekariya
- School of Chemical Engineering, Fuzhou University, Fuzhou 350116, Fujian Province, China
| | - Shihai Xu
- Department of Chemistry, College of Chemistry and Material Science, Jinan University, Guangzhou 510632, China
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Li H, Liao X, Sun Y, Zhou R, Long W, Li L, Gu L, Xu S. An Economical Synthesis of Caulerpin and Evaluation of Its New Anticancer Activities. ChemistrySelect 2018. [DOI: 10.1002/slct.201802876] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Hangbin Li
- Department of Chemistry; College of Chemistry and Materials Science 601 Huangpudadaoxi, Jinan University, Guangzhou; 510632 People's Republic of China
| | - Xiaojian Liao
- Department of Chemistry; College of Chemistry and Materials Science 601 Huangpudadaoxi, Jinan University, Guangzhou; 510632 People's Republic of China
| | - Yueguang Sun
- Department of Chemistry; College of Chemistry and Materials Science 601 Huangpudadaoxi, Jinan University, Guangzhou; 510632 People's Republic of China
| | - Rong Zhou
- Department of Chemistry; College of Chemistry and Materials Science 601 Huangpudadaoxi, Jinan University, Guangzhou; 510632 People's Republic of China
| | - Weili Long
- Department of Chemistry; College of Chemistry and Materials Science 601 Huangpudadaoxi, Jinan University, Guangzhou; 510632 People's Republic of China
| | - Le Li
- Department of Chemistry; College of Chemistry and Materials Science 601 Huangpudadaoxi, Jinan University, Guangzhou; 510632 People's Republic of China
| | - Liuqun Gu
- Department of Biomedical Engineering; Jinan University 601, Huangpudadaoxi, Guangzhou; 510632 People's Republic of China
| | - Shihai Xu
- Department of Chemistry; College of Chemistry and Materials Science 601 Huangpudadaoxi, Jinan University, Guangzhou; 510632 People's Republic of China
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Abotsi WKM, Lamptey SB, Boakye-Gyasi E, Woode E. Albizia zygia (DC.) J.F. Macbr. (Leguminosae-Mimosoideae) root extract exhibits anti-nociceptive and antipyretic activities in murine models. JOURNAL OF ETHNOPHARMACOLOGY 2017; 199:183-193. [PMID: 28167290 DOI: 10.1016/j.jep.2017.02.007] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2016] [Revised: 01/31/2017] [Accepted: 02/02/2017] [Indexed: 06/06/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE The root extract of Albizia zygia (DC.) J.F. Macbr. (Leguminosae-Mimosoideae) is traditionally used in the management of pain and fever. However, little scientific data exists in literature to support its use. AIM OF STUDY The present study evaluated the anti-nociceptive and antipyretic properties of the hydroethanolic extract of the roots of Albizia zygia in animal models. MATERIALS AND METHODS The analgesic effects were investigated in chemical (acetic acid-induced abdominal writhing and formalin tests), thermal (tail-immersion test) and mechanical (carrageenan-induced hyperalgesia) pain models. Possible mechanisms of anti-nociception were also assessed with antagonists in the formalin test. The anti-pyretic effect was evaluated using the baker yeast-induced pyrexia model in young rats. RESULTS The extract (30-300mg/kg, p.o.) and positive controls, diclofenac (3-30mg/kg, i.p.) and morphine (1-10mg/kg, i.p.), significantly (at least P<0.01) attenuated acetic acid-induced visceral pain, formalin- induced paw pain (both neurogenic and inflammatory), thermal pain as well as carrageenan-induced mechanical hyperalgesia in animals. The anti-nociceptive effect of the extract was reversed (at least P<0.05) by the pre-emptive administration of naloxone and atropine; the administration of theophylline, however, exhibited no significant (P>0.05) inhibition of anti-nociception. The extract (30-300mg/kg, p.o) and paracetamol (15-150mg/kg, p.o.) both reversed yeast-induced pyrexia in rats with ED50 values of 48.59±2.59 and 26.19±1.33mg/kg respectively. CONCLUSION The findings indicate that the extract possesses significant anti-nociceptive and antipyretic effects which justify its traditional use in the management of pain and fever. Also, anti-nociceptive effect of the extract involves opioidergic and muscarinic cholinergic mechanisms.
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Affiliation(s)
- Wonder Kofi Mensah Abotsi
- Department of Pharmacology, Faculty of Pharmacy and Pharmaceutical Sciences, College of Health Sciences, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana.
| | - Stanley Benjamin Lamptey
- Department of Pharmacology, Faculty of Pharmacy and Pharmaceutical Sciences, College of Health Sciences, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana.
| | - Eric Boakye-Gyasi
- Department of Pharmacology, Faculty of Pharmacy and Pharmaceutical Sciences, College of Health Sciences, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana.
| | - Eric Woode
- Department of Pharmacology, Faculty of Pharmacy and Pharmaceutical Sciences, College of Health Sciences, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana.
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Fonsêca DV, Salgado PRR, Aragão Neto HDC, Golzio AMFO, Caldas Filho MRD, Melo CGF, Leite FC, Piuvezam MR, Pordeus LCDM, Barbosa Filho JM, Almeida RN. Ortho-eugenol exhibits anti-nociceptive and anti-inflammatory activities. Int Immunopharmacol 2016; 38:402-8. [PMID: 27355133 DOI: 10.1016/j.intimp.2016.06.005] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2016] [Revised: 06/06/2016] [Accepted: 06/06/2016] [Indexed: 12/29/2022]
Abstract
Ortho-eugenol is a much used phenylpropanoid whose ability to reduce pain and inflammation has never been studied. Researching ortho-eugenol's antinociceptive and anti-inflammatory activity, and its possible mechanisms of action is therefore of interest. The administration of vehicle, ortho-eugenol (50, 75 and 100mg/kg i.p.), morphine (6mg/kg, i.p.) or dexamethasone (2mg/kg, s.c.) occurred 30min before the completion of pharmacological tests. Pretreatment with ortho-eugenol did not change motor coordination test results, but reduced the number of writhes and licking times in the writhing test and glutamate test, respectively. The reaction time from thermal stimulus was significantly increased in the hot plate test after administration of ortho-eugenol. Treatment with yohimbine reversed the antinociceptive effect of ortho-eugenol, suggesting involvement of the adrenergic system. In anti-inflammatory tests, ortho-eugenol inhibited acetic acid induced vascular permeability and leukocyte migration, reducing TNF-α and IL-1β by virtue of its suppression of NF-κB and p38 phosphorylated forms in the peritonitis test. From these results, ortho-eugenol antinociceptive effects mediated by the adrenergic system and anti-inflammatory activity through regulation of proinflammatory cytokines and phosphorylation of NF-kB and p38 become evident for the first time.
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Affiliation(s)
- Diogo V Fonsêca
- Postgraduate Program in Natural Products and Bioactive Synthetics (PgPNSB), Federal University of Paraíba (UFPB), João Pessoa, PB, Brazil; Laboratory of Psychopharmacology, Federal University of Paraíba (UFPB), João Pessoa, PB, Brazil
| | - Paula R R Salgado
- Laboratory of Psychopharmacology, Federal University of Paraíba (UFPB), João Pessoa, PB, Brazil
| | - Humberto de C Aragão Neto
- Postgraduate Program in Natural Products and Bioactive Synthetics (PgPNSB), Federal University of Paraíba (UFPB), João Pessoa, PB, Brazil; Laboratory of Psychopharmacology, Federal University of Paraíba (UFPB), João Pessoa, PB, Brazil
| | - Adriana M F O Golzio
- Laboratory of Psychopharmacology, Federal University of Paraíba (UFPB), João Pessoa, PB, Brazil
| | - Marcelo R D Caldas Filho
- Postgraduate Program in Natural Products and Bioactive Synthetics (PgPNSB), Federal University of Paraíba (UFPB), João Pessoa, PB, Brazil; Laboratory of Psychopharmacology, Federal University of Paraíba (UFPB), João Pessoa, PB, Brazil
| | - Cynthia G F Melo
- Postgraduate Program in Natural Products and Bioactive Synthetics (PgPNSB), Federal University of Paraíba (UFPB), João Pessoa, PB, Brazil; Laboratory of Psychopharmacology, Federal University of Paraíba (UFPB), João Pessoa, PB, Brazil
| | - Fagner C Leite
- Postgraduate Program in Natural Products and Bioactive Synthetics (PgPNSB), Federal University of Paraíba (UFPB), João Pessoa, PB, Brazil; Laboratory of Immunology, University of Paraíba (UFPB), João Pessoa, PB, Brazil
| | - Marcia R Piuvezam
- Postgraduate Program in Natural Products and Bioactive Synthetics (PgPNSB), Federal University of Paraíba (UFPB), João Pessoa, PB, Brazil; Laboratory of Immunology, University of Paraíba (UFPB), João Pessoa, PB, Brazil
| | | | - José M Barbosa Filho
- Postgraduate Program in Natural Products and Bioactive Synthetics (PgPNSB), Federal University of Paraíba (UFPB), João Pessoa, PB, Brazil
| | - Reinaldo N Almeida
- Postgraduate Program in Natural Products and Bioactive Synthetics (PgPNSB), Federal University of Paraíba (UFPB), João Pessoa, PB, Brazil; Laboratory of Psychopharmacology, Federal University of Paraíba (UFPB), João Pessoa, PB, Brazil.
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11
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Abstract
This review covers the literature published in 2014 for marine natural products (MNPs), with 1116 citations (753 for the period January to December 2014) referring to compounds isolated from marine microorganisms and phytoplankton, green, brown and red algae, sponges, cnidarians, bryozoans, molluscs, tunicates, echinoderms, mangroves and other intertidal plants and microorganisms. The emphasis is on new compounds (1378 in 456 papers for 2014), together with the relevant biological activities, source organisms and country of origin. Reviews, biosynthetic studies, first syntheses, and syntheses that lead to the revision of structures or stereochemistries, have been included.
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Affiliation(s)
- John W Blunt
- Department of Chemistry, University of Canterbury, Christchurch, New Zealand.
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12
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Cavalcante-Silva LHA, Correia ACDC, Sousa JCF, Barbosa-Filho JM, Santos BVDO, de Miranda GEC, Alexandre-Moreira MS, Cavalcante FDA. Involvement of β adrenergic receptors in spasmolytic effect of caulerpine on guinea pig ileum. Nat Prod Res 2016; 30:2605-2610. [PMID: 26734711 DOI: 10.1080/14786419.2015.1120728] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
Previously, we demonstrated that caulerpine has spasmolytic effect on guinea pig ileum. The aim of this study was to investigate pathways of its spasmolytic action. We test caulerpine against phasic contractions induced by carbachol in the circular layer of guinea pig ileum and this alkaloid did not inhibit these contractions, indicating that caulerpine did not interfering with the mobilisation of Ca2+ from intracellular stores. Additionally, the spasmolytic effect of caulerpine did not involve K+ channels. Furthermore, we observed that α2-adrenergic receptors were not involved in the spasmolytic effect of caulerpine, since the relaxation curve induced by caulerpine was not shifted in the presence of yohimbine (α2-adrenergic antagonist). However, in the presence of propranolol (β-adrenergic antagonist), the relaxation curve induced by caulerpine was right-shifted, resulting in a fivefold increase in EC50. Thus, a possible mechanism for the spasmolytic action of caulerpine is the activation of β-adrenergic receptors.
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Affiliation(s)
| | | | | | - José Maria Barbosa-Filho
- c Postgraduate Program in Natural Products and Synthetic Bioactive , Federal University of Paraíba , João Pessoa , Brazil.,d Department of Pharmaceutical Sciences , Federal University of Paraíba , João Pessoa , Brazil
| | - Bárbara Viviana de Oliveira Santos
- c Postgraduate Program in Natural Products and Synthetic Bioactive , Federal University of Paraíba , João Pessoa , Brazil.,d Department of Pharmaceutical Sciences , Federal University of Paraíba , João Pessoa , Brazil
| | | | | | - Fabiana de Andrade Cavalcante
- c Postgraduate Program in Natural Products and Synthetic Bioactive , Federal University of Paraíba , João Pessoa , Brazil.,f Department of Physiology and Pathology , Federal University of Paraíba , João Pessoa , Brazil
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13
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Abstract
This paper is the thirty-seventh consecutive installment of the annual review of research concerning the endogenous opioid system. It summarizes papers published during 2014 that studied the behavioral effects of molecular, pharmacological and genetic manipulation of opioid peptides, opioid receptors, opioid agonists and opioid antagonists. The particular topics that continue to be covered include the molecular-biochemical effects and neurochemical localization studies of endogenous opioids and their receptors related to behavior (endogenous opioids and receptors), and the roles of these opioid peptides and receptors in pain and analgesia (pain and analgesia); stress and social status (human studies); tolerance and dependence (opioid mediation of other analgesic responses); learning and memory (stress and social status); eating and drinking (stress-induced analgesia); alcohol and drugs of abuse (emotional responses in opioid-mediated behaviors); sexual activity and hormones, pregnancy, development and endocrinology (opioid involvement in stress response regulation); mental illness and mood (tolerance and dependence); seizures and neurologic disorders (learning and memory); electrical-related activity and neurophysiology (opiates and conditioned place preferences (CPP)); general activity and locomotion (eating and drinking); gastrointestinal, renal and hepatic functions (alcohol and drugs of abuse); cardiovascular responses (opiates and ethanol); respiration and thermoregulation (opiates and THC); and immunological responses (opiates and stimulants). This paper is the thirty-seventh consecutive installment of the annual review of research concerning the endogenous opioid system. It summarizes papers published during 2014 that studied the behavioral effects of molecular, pharmacological and genetic manipulation of opioid peptides, opioid receptors, opioid agonists and opioid antagonists. The particular topics that continue to be covered include the molecular-biochemical effects and neurochemical localization studies of endogenous opioids and their receptors related to behavior (endogenous opioids and receptors), and the roles of these opioid peptides and receptors in pain and analgesia (pain and analgesia); stress and social status (human studies); tolerance and dependence (opioid mediation of other analgesic responses); learning and memory (stress and social status); eating and drinking (stress-induced analgesia); alcohol and drugs of abuse (emotional responses in opioid-mediated behaviors); sexual activity and hormones, pregnancy, development and endocrinology (opioid involvement in stress response regulation); mental illness and mood (tolerance and dependence); seizures and neurologic disorders (learning and memory); electrical-related activity and neurophysiology (opiates and conditioned place preferences (CPP)); general activity and locomotion (eating and drinking); gastrointestinal, renal and hepatic functions (alcohol and drugs of abuse); cardiovascular responses (opiates and ethanol); respiration and thermoregulation (opiates and THC); and immunological responses (opiates and stimulants).
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Affiliation(s)
- Richard J Bodnar
- Department of Psychology and Neuropsychology Doctoral Sub-Program, Queens College, City University of New York, Flushing, NY 11367, United States.
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