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Weinzierl A, Ampofo E, Menger MD, Laschke MW. Tissue-Protective Mechanisms of Bioactive Phytochemicals in Flap Surgery. Front Pharmacol 2022; 13:864351. [PMID: 35548348 PMCID: PMC9081973 DOI: 10.3389/fphar.2022.864351] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Accepted: 03/24/2022] [Indexed: 11/21/2022] Open
Abstract
Despite careful preoperative planning, surgical flaps are prone to ischemic tissue damage and ischemia–reperfusion injury. The resulting wound breakdown and flap necrosis increase both treatment costs and patient morbidity. Hence, there is a need for strategies to promote flap survival and prevent ischemia-induced tissue damage. Phytochemicals, defined as non-essential, bioactive, and plant-derived molecules, are attractive candidates for perioperative treatment as they have little to no side effects and are well tolerated by most patients. Furthermore, they have been shown to exert beneficial combinations of pro-angiogenic, anti-inflammatory, anti-oxidant, and anti-apoptotic effects. This review provides an overview of bioactive phytochemicals that have been used to increase flap survival in preclinical animal models and discusses the underlying molecular and cellular mechanisms.
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Affiliation(s)
- Andrea Weinzierl
- Institute for Clinical and Experimental Surgery, Saarland University, Homburg, Germany
| | - Emmanuel Ampofo
- Institute for Clinical and Experimental Surgery, Saarland University, Homburg, Germany
| | - Michael D Menger
- Institute for Clinical and Experimental Surgery, Saarland University, Homburg, Germany
| | - Matthias W Laschke
- Institute for Clinical and Experimental Surgery, Saarland University, Homburg, Germany
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Santos MDO, Camilo CJ, Macedo JGF, Lacerda MNSD, Lopes CMU, Rodrigues AYF, Costa JGMD, Souza MMDA. Copaifera langsdorffii Desf.: A chemical and pharmacological review. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2022. [DOI: 10.1016/j.bcab.2021.102262] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Teixeira RKC, Costa FLDS, Calvo FC, Santos DRD, Yasojima EY, Brito MVH. EFFECT OF COPAIBA OIL IN INTESTINAL MUCOSA OF RATS SUBMITTED TO HYPOVOLEMIC SHOCK. ACTA ACUST UNITED AC 2019; 32:e1451. [PMID: 31644671 PMCID: PMC6812147 DOI: 10.1590/0102-672020190001e1451] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2019] [Accepted: 05/16/2019] [Indexed: 02/10/2023]
Abstract
Background:
Hypovolemic shock is a common disease in polytrauma patients and may develop
ischemia in various organs, increasing morbidity and mortality. The bowel is
usually most affected by this condition.
Aim:
To evaluate the effects of copaiba oil on the intestinal mucosa’s injury of
rats submitted to hypovolemic shock.
Method:
Fifteen rats were divided into three groups: sham - simulated surgery;
ischemia - animals submitted to hypovolemic shock; and copaiba - animals
submitted to hypovolemic shock previously treated with copaiba oil. Mean
blood pressure, arterial blood gas after shock induction, degree of
intestinal lesion and villus length were evaluated.
Results:
The sham presented the lowest values of lactate and PaCO2 and the
highest values of mean arterial pressure, pH and bicarbonate in relation to
the other groups. The degree of mesenteric lesion was zero in the sham
group; 3.00±1.00 in the ischemia group; and 3.00±0.71 in the copaiba group.
The villus length was 173.60±8.42 in the sham, 142.77±8.33 in the ischemia
and 143.01±9.57 in the copaiba group. There was a significant difference
between the sham and the other groups (p<0.05); however, there not
significant difference between groups Ischemia and copaiba.
Conclusion:
Administration of copaiba oil did not reduce the intestinal mucosa lesion of
rats after hypovolemic shock.
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Affiliation(s)
| | | | - Faustino Chaves Calvo
- Laboratory of Experimental Surgery, Faculty of Medicine, State University of Pará, Belém, PA, Brazil
| | - Deivid Ramos Dos Santos
- Laboratory of Experimental Surgery, Faculty of Medicine, State University of Pará, Belém, PA, Brazil
| | - Edson Yuzur Yasojima
- Laboratory of Experimental Surgery, Faculty of Medicine, State University of Pará, Belém, PA, Brazil
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Copaiba Oil Attenuates Right Ventricular Remodeling by Decreasing Myocardial Apoptotic Signaling in Monocrotaline-Induced Rats. J Cardiovasc Pharmacol 2019; 72:214-221. [PMID: 30212415 DOI: 10.1097/fjc.0000000000000617] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
There is an increase in oxidative stress and apoptosis signaling during the transition from hypertrophy to right ventricular (RV) failure caused by pulmonary arterial hypertension (PAH) induced by monocrotaline (MCT). In this study, it was evaluated the action of copaiba oil on the modulation of proteins involved in RV apoptosis signaling in rats with PAH. Male Wistar rats (±170 g, n = 7/group) were divided into 4 groups: control, MCT, copaiba oil, and MCT + copaiba oil. PAH was induced by MCT (60 mg/kg intraperitoneally) and, 7 days later, treatment with copaiba oil (400 mg/kg by gavage) was given for 14 days. Echocardiographic and hemodynamic measurements were performed, and the RV was collected for morphometric evaluations, oxidative stress, apoptosis, and cell survival signaling, and eNOS protein expression. Copaiba oil reduced RV hypertrophy (24%), improved RV systolic function, and reduced RV end-diastolic pressure, increased total sulfhydryl levels and eNOS protein expression, reduced lipid and protein oxidation, and the expression of proteins involved in apoptosis signaling in the RV of MCT + copaiba oil as compared to MCT group. In conclusion, copaiba oil reduced oxidative stress, and apoptosis signaling in RV of rats with PAH, which may be associated with an improvement in cardiac function caused by this compound.
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Rocha SMMD, Cardoso PCDS, Bahia MDO, Pessoa CDÓ, Soares PC, Rocha SMD, Burbano RMR, Rocha CAMD. Effect of the kaurenoic acid on genotoxicity and cell cycle progression in cervical cancer cells lines. Toxicol In Vitro 2019; 57:126-131. [DOI: 10.1016/j.tiv.2019.02.022] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2019] [Revised: 02/19/2019] [Accepted: 02/25/2019] [Indexed: 12/19/2022]
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Mauro M, De Grandis RA, Campos ML, Bauermeister A, Peccinini RG, Pavan FR, Lopes NP, De Moraes NV. Acid diterpenes from Copaiba oleoresin (Copaifera langsdorffii): Chemical and plasma stability and intestinal permeability using Caco-2 cells. JOURNAL OF ETHNOPHARMACOLOGY 2019; 235:183-189. [PMID: 30763698 DOI: 10.1016/j.jep.2019.02.017] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2018] [Revised: 02/04/2019] [Accepted: 02/10/2019] [Indexed: 06/09/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Copaiba oleoresin has been used in folk medicine in the treatment of bronchitis, syphilis, skin diseases and ulcers due to its anti-inflammatory and antiseptic activities, but there is no information about major compounds oral absorption to support the traditional use. AIM OF STUDY Considering the potential of copalic (CA) and kaurenoic acid (KA) - major biological activity (in vitro) diterpenes found in the oleoresin, this study aimed to evaluate the intestinal permeability of CA and KA using Caco-2 cells model as predictive test for oral drug absorption. MATERIALS AND METHODS Chemical stability at pH 1.2 and 7.4 and plasma stability were evaluated to mimic physiological conditions of the gastrointestinal tract. The intestinal permeability of CA and KA was evaluated in Caco-2 cells in the presence and absence of the P-glycoprotein inhibitor verapamil. RESULTS CA and KA were rapidly degraded at pH 1.2 (0.2 M Clark-Lubs buffer). At pH 7.4 (0.1 M phosphate buffer), CA was stable for up to 24 h and KA for up to 6 h. In human plasma, CA and KA can be considered stable for 24 h and 12 h at 37 °C, respectively. Caco-2 cells were considered viable when incubated with CA or KA in the range of 3.9-250 μM for 24 h. CA and KA exhibited moderate apparent permeability (Papp) of 4.67 (±0.08) × 10-6 cm/s and 4.66 (±0.04) × 10-6 cm/s, respectively. Simultaneous incubation with verapamil showed that P-glycoprotein does not play a relevant role on CA and KA oral absorption, with Papp of 4.48 (±0.26) × 10-6 cm/s and 5.37 (±0.72) × 10-6 cm/s observed for CA and KA, respectively. CONCLUSION The oral absorption of both CA and KA is driven by mainly passive permeability, is not limited by p-glycoprotein, but enteric-coated dosage forms should be used to avoid chemical instability in the gastric pH.
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Affiliation(s)
- M Mauro
- São Paulo State University (UNESP), School of Pharmaceutical Sciences, Araraquara, SP ZIP 14801-902, Brazil.
| | - R A De Grandis
- São Paulo State University (UNESP), School of Pharmaceutical Sciences, Araraquara, SP ZIP 14801-902, Brazil.
| | - M L Campos
- Federal University of Mato Grosso, Sinop, MT, Brazil.
| | - A Bauermeister
- University of Sao Paulo (USP), NPPNS, School of Pharmaceutical Sciences of Ribeirao Preto, Ribeirao Preto, SP ZIP 14040-903, Brazil.
| | - R G Peccinini
- São Paulo State University (UNESP), School of Pharmaceutical Sciences, Araraquara, SP ZIP 14801-902, Brazil.
| | - F R Pavan
- São Paulo State University (UNESP), School of Pharmaceutical Sciences, Araraquara, SP ZIP 14801-902, Brazil.
| | - N P Lopes
- University of Sao Paulo (USP), NPPNS, School of Pharmaceutical Sciences of Ribeirao Preto, Ribeirao Preto, SP ZIP 14040-903, Brazil.
| | - N V De Moraes
- São Paulo State University (UNESP), School of Pharmaceutical Sciences, Araraquara, SP ZIP 14801-902, Brazil.
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Arruda C, Aldana Mejía JA, Ribeiro VP, Gambeta Borges CH, Martins CHG, Sola Veneziani RC, Ambrósio SR, Bastos JK. Occurrence, chemical composition, biological activities and analytical methods on Copaifera genus-A review. Biomed Pharmacother 2018; 109:1-20. [PMID: 30396065 DOI: 10.1016/j.biopha.2018.10.030] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2018] [Revised: 10/03/2018] [Accepted: 10/09/2018] [Indexed: 12/25/2022] Open
Abstract
Copaifera is a genus of large trees found in Brazil, mainly in Amazon forest, but also in Atlantic forest and cerrado biomes. It has also been found in other countries in South America. In Africa, it is found mainly in Congo, Cameroon, Guinea and Angola. Its oleoresin has been used in folk medicine in the treatment of numerous healthy disorders, such as urinary, respiratory, skin and inflammatory diseases, for which there are several studies corroborating its ethnopharmacological uses. It is also extensively employed in the pharmaceutical and cosmetic industries in the development of ointments, pills, soaps, perfumes, among others. Copaifera oleoresin contains mainly diterpenes, such as: kaurenoic acid, kaurenol, copalic acid, agathic acid, hardwiickic acid, polyalthic acid, and sesquiterpenes, comprising β-caryophyllene, caryophyllene oxide, α-copaene, α-humulene, γ-muurolene and β-bisabolol, among other compounds. On the other hand, Copaifera leaves contain mainly phenolic compounds, such as flavonoids and methylated galloylquinic acid derivatives. Therefore, considering the economic importance of Copaifera oleoresin, its ethnopharmacological uses, the need to develop new pharmaceuticals for the treatment of many diseases, as well as the pharmacological potential of the compounds found in Copaifera spp., it was undertaken a review covering mostly the last two decades on the distribution, chemistry, pharmacology, quality control and safety of Copaifera species.
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Affiliation(s)
- Caroline Arruda
- School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Av. Café s/n, Ribeirão Preto, SP, 14040-903, Brazil
| | - Jennyfer Andrea Aldana Mejía
- School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Av. Café s/n, Ribeirão Preto, SP, 14040-903, Brazil
| | - Victor Pena Ribeiro
- School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Av. Café s/n, Ribeirão Preto, SP, 14040-903, Brazil
| | | | | | | | | | - Jairo Kenupp Bastos
- School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Av. Café s/n, Ribeirão Preto, SP, 14040-903, Brazil.
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Copaifera of the Neotropics: A Review of the Phytochemistry and Pharmacology. Int J Mol Sci 2018; 19:ijms19051511. [PMID: 29783680 PMCID: PMC5983702 DOI: 10.3390/ijms19051511] [Citation(s) in RCA: 51] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2018] [Revised: 05/15/2018] [Accepted: 05/15/2018] [Indexed: 12/25/2022] Open
Abstract
The oleoresin of Copaifera trees has been widely used as a traditional medicine in Neotropical regions for thousands of years and remains a popular treatment for a variety of ailments. The copaiba resins are generally composed of a volatile oil made up largely of sesquiterpene hydrocarbons, such as β-caryophyllene, α-copaene, β-elemene, α-humulene, and germacrene D. In addition, the oleoresin is also made up of several biologically active diterpene acids, including copalic acid, kaurenoic acid, alepterolic acid, and polyalthic acid. This review presents a summary of the ecology and distribution of Copaifera species, the traditional uses, the biological activities, and the phytochemistry of copaiba oleoresins. In addition, several biomolecular targets relevant to the bioactivities have been implicated by molecular docking methods.
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Teixeira FB, de Brito Silva R, Lameira OA, Webber LP, D’Almeida Couto RS, Martins MD, Lima RR. Copaiba oil-resin (Copaifera reticulata Ducke) modulates the inflammation in a model of injury to rats' tongues. Altern Ther Health Med 2017; 17:313. [PMID: 28615025 PMCID: PMC5471965 DOI: 10.1186/s12906-017-1820-2] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2016] [Accepted: 06/01/2017] [Indexed: 12/22/2022]
Abstract
Background The regeneration of integrity and tissue homeostasis after injury is a fundamental property and involves complex biological processes fully dynamic and interconnected. Although there are medications prescribed to accelerate the process of wound healing by reducing the exaggerated inflammatory response, comes the need to search for different compounds of Amazonian biodiversity that can contribute to the acceleration of the healing process. Among these products, the copaiba oil-resin is one of the most prominent feature in this scenario, as they have been reported its medicinal properties. Methods Aiming to evaluate the anti-inflammatory and healing effect of copaiba oil-resin (Copaifera reticulata Ducke) in transfixing injury of rats’ tongues first proceeded up the copaiba oil-resin oral toxicity test in 5 male mice to stipulate the therapeutic dose which was established at 200 mg/kg/day. Then it was induced transfixing injury in a total of 15 Wistar rats. The animals were randomly divided into three groups based on the treatment: control group, dexamethasone group and copaiba oil-resin group. After 7 days of treatment, histological slides stained with hematoxylin and eosin was prepared. Immunohistochemistry for CD68 (macrophage marker) was performed and analyzed by the cell counter Image J. Results The acute toxicity test showed that the oil-resin copal has low toxicity. Furthermore, copaiba oil-resin therapy modulates the inflammatory response by decreasing the chronic inflammatory infiltrate, edema and specifically the number of macrophages. Conclusions The results indicate the potential of the Amazon region and showed up relevant because therapy with this extract modulates the inflammatory process.
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Ribeiro RV, Bieski IGC, Balogun SO, Martins DTDO. Ethnobotanical study of medicinal plants used by Ribeirinhos in the North Araguaia microregion, Mato Grosso, Brazil. JOURNAL OF ETHNOPHARMACOLOGY 2017; 205:69-102. [PMID: 28476677 DOI: 10.1016/j.jep.2017.04.023] [Citation(s) in RCA: 95] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2016] [Revised: 04/19/2017] [Accepted: 04/19/2017] [Indexed: 05/27/2023]
Abstract
ETHNOPHARMACOLOGICAL IMPORTANCE Currently, in many traditional communities, such as the riverine community in the North Araguaia microregion (Mato Grosso, Brazil), plant knowledge and use represent the main, if not the only, therapeutic resource for the maintenance of health and/or treatment of diseases. This study aimed to identify and document species of medicinal plants used by local experts from riverine communities in the North Araguaia microregion in Mato Grosso State, and to further chemical and pharmacological studies on species selected based on searches in the relevant literature. MATERIALS AND METHODS This is a cross-sectional ethnobotanical study, with non-probabilistic sampling (n =60), that applied the snowball method to select local riverine experts who understand medicinal plant use. Socio-demographic, ethnobotanical and ethnopharmacological data (vernacular name, uses, geographical origin, habit, method of preparation and part used) on medicinal plants were collected during semi-structured interviews. The results were analyzed by descriptive and quantitative means: indices of use-report (UR) were used to select plant species with therapeutic potential. RESULTS In total, 309 plant species belonging to 86 botanical families were cited; 73% were native to Brazil, and Fabaceae was the most representative family (11.3%). Arboreal was the predominant life form (37.2%). The leaf was the most used part (28.9%). Infusion was the most commonly reported method of preparation (31.3%). The plants reported in the survey were indicated for 18 of the 22 ICD-10 disease categories. The disease categories most commonly cited were the infectious and parasitic diseases (IPD, 718 UR), digestive system diseases (DSD, 565 UR) and respiratory system diseases (RSD, 504 UR), representing 16.6%, 13.1% and 11.7%, respectively of the total UR. Dysphania ambrosioides L. was the most sighted in the IPD category 50 UR. Copaifera langsdorffii Desf. (133), Lafoensia pacari A. St.-Hil. (131), and Cecropia pachystachya Trécul (126) were the species with the highest UR. Bidens pilosa L., Vernonia ferruginea Less, and L. pacari, respectively, were the most cited native plants used to treat such diseases. Of the 8 investigated native plants, C. langsdorffii, and Brosimum gaudichaudii are the most prominent: in addition to having been widely studied, in terms of phytochemical and pharmacological, these species have been marketed as pharmaceutical products, with associated patent deposits. CONCLUSIONS Local riverine experts from the North Araguaia microregion use a wide variety of medicinal plants in self-care health, especially those species used to treat IPD. The therapeutic potential of some of these plants has been scientifically validated; however, there are other species whose pharmacological effects and safety remain to be properly investigated. Thus, the present study, aside from being a basis for future chemical, pharmacological and agronomic bioprospecting studies, may contribute to the development of the management, conservation and sustainable use of medicinal flora in the microregion studied.
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Affiliation(s)
- Reginaldo Vicente Ribeiro
- Department of Basic Sciences in Health, Faculty of Medicine, Universidade Federal de Mato Grosso (UFMT), 78.060-900 Cuiabá, Mato Grosso, Brazil; Instituto Federal de Educação, Ciência e Tecnologia de Mato Grosso (IFMT), Advanced Campus of Lucas do Rio Verde, 78.455-000, Mato Grosso, Brazil
| | - Isanete Geraldini Costa Bieski
- Department of Basic Sciences in Health, Faculty of Medicine, Universidade Federal de Mato Grosso (UFMT), 78.060-900 Cuiabá, Mato Grosso, Brazil; Curso de Farmácia, Faculdade do Noroeste de Mato Grosso - AJES, 78.320-000 Juína, Mato Grosso, Brazil
| | - Sikiru Olaitan Balogun
- Department of Basic Sciences in Health, Faculty of Medicine, Universidade Federal de Mato Grosso (UFMT), 78.060-900 Cuiabá, Mato Grosso, Brazil; Curso de Farmácia, Faculdade do Noroeste de Mato Grosso - AJES, 78.320-000 Juína, Mato Grosso, Brazil
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Castro Ghizoni CV, Arssufi Ames AP, Lameira OA, Bersani Amado CA, Sá Nakanishi AB, Bracht L, Marçal Natali MR, Peralta RM, Bracht A, Comar JF. Anti‐Inflammatory and Antioxidant Actions of Copaiba Oil Are Related to Liver Cell Modifications in Arthritic Rats. J Cell Biochem 2017; 118:3409-3423. [DOI: 10.1002/jcb.25998] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2016] [Accepted: 03/17/2017] [Indexed: 01/15/2023]
Affiliation(s)
| | | | - Osmar A. Lameira
- Embrapa Amazônia OrientalBrazilian Agricultural Research CorporationBelémPABrazil
| | | | | | - Lívia Bracht
- Department of BiochemistryState University of MaringaPRBrazil
| | | | | | - Adelar Bracht
- Department of BiochemistryState University of MaringaPRBrazil
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The Effect of Botulinum Toxin A on Ischemia-Reperfusion Injury in a Rat Model. BIOMED RESEARCH INTERNATIONAL 2017; 2017:1074178. [PMID: 28589130 PMCID: PMC5447266 DOI: 10.1155/2017/1074178] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/05/2017] [Accepted: 04/09/2017] [Indexed: 02/04/2023]
Abstract
Introduction While studies using various materials to overcome ischemia-reperfusion (IR) injury are becoming increasingly common, studies on the effects of botulinum toxin A (BoTA) on IR injury in musculocutaneous flaps are still limited. The purpose of this study was to examine our hypotheses that BoTA provide protection of musculocutaneous flap from ischemia-reperfusion injury. Method Five days after pretreatment injection (BoTA versus normal saline), a right superior musculocutaneous flap (6 × 1.5 cm in size) was made. Ischemia was created by a tourniquet strictly wrapping the pedicle containing skin and muscle for 8 h. After ischemia, the tourniquet was cut, and the musculocutaneous flap was reperfused. Results The overall survival percentage of flap after 8 h of pedicle clamping followed by reperfusion was 87.32 ± 3.67% in the control group versus 95.64 ± 3.25% in the BoTA group (p < 0.001). The BoTA group had higher expression of CD34, HIF-1α, VEGF, and NF-kB comparing to control group in qRT-PCR analysis. Conclusions In this study, we found that local BoTA preconditioning yielded significant protection against IR injury in a rat musculocutaneous flap model.
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Orhan E, Uysal AÇ, Başer E, Keskin D, Demiroğlu-Yakut Ç. The effect of intradermal administration of inactive platelet-rich plasma on flap viability in rats. Acta Cir Bras 2017; 32:280-286. [DOI: 10.1590/s0102-865020170040000003] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2016] [Accepted: 03/10/2017] [Indexed: 11/22/2022] Open
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Cardoso PCDS, Rocha CAMD, Leal MF, Bahia MDO, Alcântara DDFÁ, Santos RAD, Gonçalves NDS, Ambrósio SR, Cavalcanti BC, Moreira-Nunes CA, Pessoa CDÓ, Burbano RMR. Effect of diterpenoid kaurenoic acid on genotoxicity and cell cycle progression in gastric cancer cell lines. Biomed Pharmacother 2017; 89:772-780. [PMID: 28273639 DOI: 10.1016/j.biopha.2017.02.085] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2016] [Revised: 02/22/2017] [Accepted: 02/22/2017] [Indexed: 12/23/2022] Open
Abstract
The goal of our study was to evaluate the effect of kaurenoic acid, obtained from copaiba oil resin, in gastric cancer (GC) and a normal mucosa of stomach (MNP01) cell lines. The compound was tested at concentrations of 2.5, 5, 10, 30 and 60μg/mL. Comet and micronucleus assays were used to access its potential genotoxicity in vitro. Moreover, we evaluated the effect of kaurenoic acid in cell cycle progression and in the transcription of genes involved in the control of the cell cycle: MYC, CCND1, BCL2, CASP3, ATM, CHK2 and TP53. Kaurenoic acid induced an increase on cell DNA damage or micronucleus frequencies on GC cell lines in a dose-dependent manner. The GC and MNP01 cell lines entering DNA synthesis and mitosis decreased significantly with kaurenoic acid treatment, and had an increased growth phase compared with non-treated cells. The treatment induced apoptosis (or necrosis) even at a concentration of 2.5μg/mL in relation to non-treated cells. GC cell lines presented reduced MYC, CCND1, BCL2 and CASP3 transcription while ATM, CHK2 and TP53 increased in transcription in relation to non-treated cells, especially at a concentration above 10μg/mL. The gene transcription in the MNP01 (non-treated non-cancer cell line) was designated as a calibrator for all the GC cell lines. In conclusion, our results showed that kaurenoic acid obtained from Copaifera induces DNA damage and increases the micronuclei frequency in a dose-dependent manner in GC cells, with a significant genotoxicity observed above the concentration of 5μg/mL. Moreover, this compound seems to be able to induce cell cycle arrest and apoptosis in GC cells.
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Affiliation(s)
| | - Carlos Alberto Machado da Rocha
- Federal Institute of Education, Science and Technology of Pará (IFPA), Av. Almirante Barroso, 1155 (Marco), CEP 66093-020, Belém, Pará, Brazil.
| | - Mariana Ferreira Leal
- Department of Morphology and Genetics, Federal University of São Paulo (UNIFESP), São Paulo, São Paulo, Brazil
| | - Marcelo de Oliveira Bahia
- Human Cytogenetic Laboratory, Biological Science Institute, Federal University of Pará (UFPA), Belém, Pará, Brazil
| | | | - Raquel Alves Dos Santos
- Laboratory of Genetics and Molecular Biology, University of Franca (UNIFRAN), Franca, São Paulo, Brazil
| | | | | | - Bruno Coêlho Cavalcanti
- Department of Physiology and Pharmacology, Federal University of Ceará (UFC), Fortaleza, Ceará, Brazil
| | - Caroline Aquino Moreira-Nunes
- Human Cytogenetic Laboratory, Biological Science Institute, Federal University of Pará (UFPA), Belém, Pará, Brazil; Laboratory of Genetics of Hemoglobinopathies and Hematologic Diseases, Federal University of Ceará (UFC), Fortaleza, Ceará, Brazil
| | - Claudia do Ó Pessoa
- Department of Physiology and Pharmacology, Federal University of Ceará (UFC), Fortaleza, Ceará, Brazil
| | - Rommel Mário Rodríguez Burbano
- Human Cytogenetic Laboratory, Biological Science Institute, Federal University of Pará (UFPA), Belém, Pará, Brazil; Hospital Ophir Loyola (HOL), Belém, Pará, Brazil.
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Zhang DY, Kang SS, Zhang ZW, Wu R. Edaravone enhances the viability of ischemia/reperfusion flaps. ACTA ACUST UNITED AC 2017; 37:51-56. [PMID: 28224430 DOI: 10.1007/s11596-017-1693-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2015] [Revised: 08/03/2016] [Indexed: 10/18/2022]
Abstract
The purpose of the experiment was to study the efficacy of edaravone in enhancing flap viability after ischemia/reperfusion (IR) and its mechanism. Forty-eight adult male SD rats were randomly divided into 3 groups: control group (n=16), IR group (n=16), and edaravone-treated IR group (n=16). An island flap at left lower abdomen (6.0 cm×3.0 cm in size), fed by the superficial epigastric artery and vein, was created in each rat of all the three groups. The arterial blood flow of flaps in IR group and edaravone-treated IR group was blocked for 10 h, and then the blood perfusion was restored. From 15 min before reperfusion, rats in the edaravone-treated IR group were intraperitoneally injected with edaravone (10 mg/kg), once every 12 h, for 3 days. Rats in the IR group and control group were intraperitoneally injected with saline, with the same method and frequency as the rats in the edaravone-treated IR group. In IR group and edaravone-treated IR group, samples of flaps were harvested after reperfusion of the flaps for 24 h. In the control group, samples of flaps were harvested 34 h after creation of the flaps. The content of malondialdehyde (MDA) and activity of superoxide dismutase (SOD) were determined, and changes in organizational structure and infiltration of inflammatory cells were observed by hematoxylin-eosin (HE) staining, apoptotic cells of vascular wall were marked by terminal deoxynucleotidyl transferase-mediated dUTP nick-end labeling (TUNEL) assay, and the apoptotic rate of cells in vascular wall was calculated. The ultrastructural changes of vascular endothelial cells were observed by transmission electron microscopy (TEM). Seven days after the operation, we calculated the flap viability of each group, and marked vessels of flaps by immunohistochemical staining for calculating the average number of subcutaneous vessels. The results showed that the content of MDA, the number of multicore inflammatory cells and apoptotic rate of cells in vascular wall in the edaravone-treated IR group were significantly lower than those in the IR group. The activity of SOD, flap viability and average number of subcutaneous vessels in the edaravone-treated IR group were significantly higher than those in the IR group. All the differences were statistically significant. The ultrastructure injury of vascular endothelial cells in the edaravone-treated IR group was slighter than that in IR group. It was concluded that edaravone can significantly enhance IR flap viability and protect flap vessels, which is related to scavenging oxygen free radicals, reducing the consumption of SOD, reducing the extent of lipid peroxidation and inflammation, and protecting functional structure of vessels in the early stages of reperfusion.
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Affiliation(s)
- Dong-Yi Zhang
- Department of Plastic Surgery, Henan Provincial People's Hospital (Zhengzhou University People's Hospital), Zhengzhou, 450000, China
| | - Shen-Song Kang
- Department of Plastic Surgery, Henan Provincial People's Hospital (Zhengzhou University People's Hospital), Zhengzhou, 450000, China.
| | - Zheng-Wen Zhang
- Department of Plastic Surgery, Henan Provincial People's Hospital (Zhengzhou University People's Hospital), Zhengzhou, 450000, China
| | - Rui Wu
- Department of Cardiopulmonary Function, Henan Provincial People's Hospital (Zhengzhou University People's Hospital), Zhengzhou, 450000, China
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de Almeida Borges VR, Tavares MR, da Silva JH, Tajber L, Boylan F, Ribeiro AF, Nasciutti LE, Cabral LM, de Sousa VP. Development and characterization of poly(lactic-co-glycolic) acid nanoparticles loaded with copaiba oleoresin. Pharm Dev Technol 2017; 23:343-350. [DOI: 10.1080/10837450.2017.1290107] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
| | - Marina R. Tavares
- Department of Pharmaceutics, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Julianna Henriques da Silva
- Research Program in Cellular Biology and Development, Institute of Biomedical Sciences, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Lidia Tajber
- School of Pharmacy, Trinity College, University of Dublin, Dublin, Ireland
| | - Fabio Boylan
- School of Pharmacy, Trinity College, University of Dublin, Dublin, Ireland
| | - Ana Ferreira Ribeiro
- Department of Pharmaceutics, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Luiz Eurico Nasciutti
- Research Program in Cellular Biology and Development, Institute of Biomedical Sciences, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Lucio Mendes Cabral
- Department of Pharmaceutics, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
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Silva JJDL, Pompeu DG, Ximenes NC, Duarte ASG, Gramosa NV, Carvalho KDM, Brito GADC, Guimarães SB. Effects of Kaurenoic Acid and Arginine on Random Skin Flap Oxidative Stress, Inflammation, and Cytokines in Rats. Aesthetic Plast Surg 2015; 39:971-7. [PMID: 26408387 DOI: 10.1007/s00266-015-0559-8] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2015] [Accepted: 08/18/2015] [Indexed: 11/26/2022]
Abstract
BACKGROUND Kaurenoic acid (KA), a diterpene extracted from copaíba oil-resin, is known to have potent antioxidant and anti-inflammatory properties. L-Arginine (LA) is an amino acid and a nitrogenous precursor for the synthesis of nitric oxide (NO). NO paper in wound healing has already been well documented. The aim of this study was to investigate the protective effects of LA and KA against ischemia reperfusion injury in a randomized skin flap model in rats. METHODS A modified McFarlane flap model measuring 2.5 wide × 8 cm long was established in 36 anesthetized rats and evaluated within 3 groups: group control, group L-arginine, and group kaurenoic acid. Each group was subdivided into two subgroups (T1 and T2, n = 6 each). Samples were collected 24 h (T1)/48 h (T2) postoperatively for oxidative stress (glutathione), as non-protein thiols, malondialdehyde (MDA), NO2, inflammation [myeloperoxidase (MPO)], and cytokines TNF-α and IL-1β assays. RESULTS KA promoted a significant decrease of TNF-α and IL-1 expression and MPO activity at T1/T2 time points. NSGH levels increased significantly in KA-treated rats, while MDA levels decreased significantly in the same rats. Arginine promoted a significant decrease in MDA levels at the T1 time point and a significant increase in non-protein thiols concentrations at T1/T2 time points. NO2 concentration also decreased at the T1 time point. CONCLUSIONS KA may attenuate the oxidative stress and the inflammation, thereby reducing tissue damage induced by ischemia/reperfusion in rats subjected to dorsal skin flaps. NO LEVEL ASSIGNED This journal requires that authors assign a level of evidence to each submission to which Evidence-Based Medicine rankings are applicable. This excludes Review Articles, Book Reviews, and manuscripts that concern Basic Science, Animal Studies, Cadaver Studies, and Experimental Studies. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors http://www.springer.com/00266.
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Affiliation(s)
- Joaquim José de Lima Silva
- Department of Surgery, Federal University of Ceará (UFC), Rua Professor Costa Mendes, 1608/3º andar, Bloco Didático, Fortaleza, CE, 60430-140, Brazil.
| | - Débora Gramosa Pompeu
- Course of Chemical Engineering (UFC), Av. da Universidade, 2853 - Benfica, Fortaleza, CE, 60020-181, Brazil.
| | - Naiara Coelho Ximenes
- Faculty of Pharmacy, Dentistry and Nursing (UFC), Rua Alexandre Baraúna, 949 - Rodolfo Teófilo, Fortaleza, CE, 60430-160, Brazil.
| | | | - Nilce Viana Gramosa
- Department of Organic and Inorganic Chemistry (UFC), Campus do Pici, bloco 940 Bairro Pici, Fortaleza, CE, 60451-970, Brazil.
| | - Krishnamurti de Morais Carvalho
- Clinical Pharmacology and Molecular Laboratory, School of Medicine, Ceara State University (UECE), Av. Dr. Silas Muguba, 1700 - Campus do Itaperi, Fortaleza, CE, 60740-000, Brazil.
| | - Gerly Anne de Castro Brito
- Department of Morphology (UFC), Rua Delmiro de Farias s/n - Rodolfo Teófilo, Fortaleza, CE, 60416-030, Brazil.
| | - Sergio Botelho Guimarães
- Department of Surgery, Federal University of Ceará (UFC), Rua Professor Costa Mendes, 1608/3º andar, Bloco Didático, Fortaleza, CE, 60430-140, Brazil.
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Silva PF, Brito MVH, Pontes FSC, Ramos SR, Mendes LC, Oliveira LCM. Copaiba oil effect on experimental jaw defect in Wistar rats. Acta Cir Bras 2015; 30:120-6. [PMID: 25714691 DOI: 10.1590/s0102-86502015002000006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2014] [Accepted: 01/19/2015] [Indexed: 11/21/2022] Open
Abstract
PURPOSE To evaluate the effects of copaiba oil on jaw defects repair in Wistar rats treated with bioglass or adipose tissue. METHODS A jaw defect was randomly created in forty-two rats and filled with bioglass or adipose tissue. The two groups (Gbio and Gcell) were subdivided in three subgroups with seven animals each according to gavage administration: control (distillated water), oil (copaiba oil) and melox (meloxicam). Euthanasia was performed after forty post-operative days. The bone formation was analyzed regarding the histological aspects. RESULTS The osteoclasts activity was observed only in four subgroups (p=0.78). Regarding the osteoblasts presence, it was very similar between the subgroups, the difference was due to Gcell-melox (p=0.009) that presented less osteoblastic activity. The inflammatory cells were more evident in Gcell-melox subgroup, however, there was no difference in comparison with the other subgroups (p=0.52). Bone formation was observed in all subgroups, just two animals showed no bone formation even after 40 days. More than 50% of bone matrix mineralization was observed in 56% (23 animals) of the analyzed areas. The bone matrix mineralization was not different between subgroups (p=0.60). CONCLUSIONS The subgroups that received copaiba oil showed bone repair, although not statistically significant in comparison to subgroups treated with meloxicam or controls. Copaiba oil administered by gavage had no effect on bone repair in this experimental model.
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Estevão LRM, Medeiros JPD, Baratella-Evêncio L, Simões RS, Mendonça FDS, Evêncio-Neto J. Effects of the topical administration of copaiba oil ointment (Copaifera langsdorffii) in skin flaps viability of rats. Acta Cir Bras 2013; 28:863-9. [DOI: 10.1590/s0102-86502013001200009] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2013] [Accepted: 11/18/2013] [Indexed: 01/09/2023] Open
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Almeida MR, Darin JDC, Hernandes LC, de Souza Ramos MF, Antunes LMG, de Freitas O. Genotoxicity assessment of Copaiba oil and its fractions in Swiss mice. Genet Mol Biol 2012; 35:664-72. [PMID: 23055807 PMCID: PMC3459418 DOI: 10.1590/s1415-47572012005000052] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2012] [Accepted: 05/21/2012] [Indexed: 11/22/2022] Open
Abstract
Copaiba oil-resin, extracted from the trunk of Copaifera, and traditionally used in folk medicine in the treatment of various disorders, has been shown to be an effective antiinflamatory, antitumor, antitetanus, antiseptic and anti-blenorrhagea agent. As, there are few studies evaluating its genotoxicity, this aspect of the commercial oil-resin, and its volatile and resinous fractions, were evaluated in mice by comet assay and micronucleus (MN) test. A single dose of oil resin, volatile or resin fractions (500; 1,000 or 2,000 mg/kg b.w.) was administered by gavage. The chemical compositions of Copaiba oil resin and its fractions was analyzed by gas chromatography. According to comet assaying, treatment with either one did not increase DNA damage, and as to MN testing, there was no alteration in the incidence of micronucleated polychromatic erythrocytes. Chromatographic analysis of the oil-resin itself revealed sesquiterpenes, diterpenic carboxylic acid methyl esters and high levels of β-caryophyllene. Thus, it can be assumed that the oil resin and volatile and resinous fractions from the commercial product are not genotoxic or mutagenic.
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Affiliation(s)
- Mara Ribeiro Almeida
- Departamento de Análises Clínicas, Toxicológicas e Bromatológicas, Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Ribeirão Preto, SP, Brazil
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Leandro LM, de Sousa Vargas F, Barbosa PCS, Neves JKO, da Silva JA, da Veiga-Junior VF. Chemistry and biological activities of terpenoids from copaiba (Copaifera spp.) oleoresins. Molecules 2012; 17:3866-89. [PMID: 22466849 PMCID: PMC6269112 DOI: 10.3390/molecules17043866] [Citation(s) in RCA: 117] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2011] [Revised: 03/18/2012] [Accepted: 03/22/2012] [Indexed: 12/27/2022] Open
Abstract
Copaiba oleoresins are exuded from the trunks of trees of the Copaifera species (Leguminosae-Caesalpinoideae). This oleoresin is a solution of diterpenoids, especially, mono- and di-acids, solubilized by sesquiterpene hydrocarbons. The sesquiterpenes and diterpenes (labdane, clerodane and kaurane skeletons) are different for each Copaifera species and have been linked to several reported biological activities, ranging from anti-tumoral to embriotoxic effects. This review presents all the substances already described in this oleoresin, together with structures and activities of its main terpenoids.
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Affiliation(s)
- Lidiam Maia Leandro
- Chemistry Department, Amazonas Federal University, Av. Gal. Rodrigo Octávio, 6.200, Japiim, Manaus-AM, 69080-900, Brazil
| | - Fabiano de Sousa Vargas
- Chemistry Department, Amazonas Federal University, Av. Gal. Rodrigo Octávio, 6.200, Japiim, Manaus-AM, 69080-900, Brazil
| | - Paula Cristina Souza Barbosa
- Chemistry Department, Amazonas Federal University, Av. Gal. Rodrigo Octávio, 6.200, Japiim, Manaus-AM, 69080-900, Brazil
| | - Jamilly Kelly Oliveira Neves
- Graduate Program on Pharmaceutical Sciences, Paraíba State University, Rua Baraúnas, 351, Bairro Universitário, Campina Grande-PB, 58429-500, Brazil
| | - José Alexsandro da Silva
- Graduate Program on Pharmaceutical Sciences, Paraíba State University, Rua Baraúnas, 351, Bairro Universitário, Campina Grande-PB, 58429-500, Brazil
| | - Valdir Florêncio da Veiga-Junior
- Chemistry Department, Amazonas Federal University, Av. Gal. Rodrigo Octávio, 6.200, Japiim, Manaus-AM, 69080-900, Brazil
- Author to whom correspondence should be addressed; ; Tel.: +55-92-9903-6771
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Copaiba oil-resin treatment is neuroprotective and reduces neutrophil recruitment and microglia activation after motor cortex excitotoxic injury. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2012; 2012:918174. [PMID: 22461843 PMCID: PMC3291111 DOI: 10.1155/2012/918174] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/23/2011] [Revised: 11/05/2011] [Accepted: 11/16/2011] [Indexed: 11/21/2022]
Abstract
The oil-resin of Copaifera reticulata Ducke is used in the Brazilian folk medicine as an anti-inflammatory and healing agent. However, there are no investigations on the possible anti-inflammatory and neuroprotective roles of copaiba oil-resin (COR) after neural disorders. We have investigated the anti-inflammatory and neuroprotective effects of COR following an acute damage to the motor cortex of adult rats. Animals were injected with the neurotoxin N-Methyl-D-Aspartate (NMDA) (n = 10) and treated with a single dose of COR (400 mg/kg, i.p.) soon after surgery (Group 1) or with two daily doses (200 mg/kg, i.p.) during 3 days (Group 2) alter injury. Control animals were treated with vehicle only. COR treatment induced tissue preservation and decreased the recruitment of neutrophils and microglial activation in the injury site compared to vehicle animals. The results suggest that COR treatment induces neuroprotection by modulating inflammatory response following an acute damage to the central nervous system.
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Esteves EA, Oliveira LG, Pires ST, Batista ÂG, Dessimoni-Pinto NAV, Santana RC. Nutritional composition of Copaifera langsdorffii Desf. aril flour and its effect on serum lipids and glucose in rats. Food Res Int 2011. [DOI: 10.1016/j.foodres.2010.12.005] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Comelli Júnior E, Skinovski J, Sigwalt MF, Branco AB, Luz SR, Baulé CDP. Rupture point analysis of intestinal anastomotic healing in rats under the action of pure Copaíba (Copaifera Iangsdorfii) oil. Acta Cir Bras 2011; 25:362-7. [PMID: 20676496 DOI: 10.1590/s0102-86502010000400012] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2010] [Accepted: 04/28/2010] [Indexed: 11/22/2022] Open
Abstract
PURPOSE Analyze the mechanical strength of digestive tract scar after intestinal anastomosis surgery in animals treated with pure Copaíba oil. METHODS 60 Wistar rats, male, about 250 days old and weighting around 350g were used. The rats were randomly divided into two groups: Group O, with 30 animals that received Copaíba oil and Group C, with 30 animals that received saline. Each group was subdivided into three subgroups, containing 10 rats each. They were designated O7, O14, O28, C7, C14 and C28, according to the post-operative assessment date at 7, 14 and 28 days, respectively. On these dates euthanasia was performed with the removal of the bowel segment containing the anastomosis and assigning the samples to tensile test for assessing Maximum Stress, Maximum Tensile Strength and Maximum Rupture Strength. RESULTS On the three variables of the study, the results indicate that, for the three assessment periods (7, 14 and 28 days) there was no significant difference between the oil and control groups. CONCLUSION For the mechanical tests proposed by this study, Copaíba oil didn t show any effectiveness in increasing the anatomosis strength.
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Jacobsen GW, Hem E, Sigurdsson JA. "No doubt this childhood disease on Vestmannö can be prevented"--neonatal tetanus on the Westman Islands. TIDSSKRIFT FOR DEN NORSKE LEGEFORENING 2011; 131:701-7. [PMID: 21494309 DOI: 10.4045/tidsskr.10.1023] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022] Open
Abstract
At the beginning of the 1800 s neonatal tetanus was a major health hazard on the Westman Islands, an archipelago immediately south of Iceland. Up to 60–70% of newborn babies died in the course of the first two weeks of life, and Danish health authorities were almost helpless in the face of this mysterious disease. In 1847 the young Danish doctor Peter Anton Schleisner (1818-1900) was sent to the islands to investigate the conditions there. He established a maternity hospital, gave advice on hygiene and encouraged breast-feeding and a number of changes in diet. Since there was no known treatment, Schleisner's only option was to resort to preventive measures. He dressed the umbilical stump with balsamum copaivae and tried well-established methods such as opium tincture with saffron and mercurial ointment if there was any sign of infection. By the time he returned to Denmark after nine months, mortality had been halved. Neonatal mortality on the Westman Islands remained at the same low level throughout the rest of the 19th century. According to popular belief this was due to the naflaolian (navel oil) which Schleisner introduced. Nevertheless, it can be partly attributed to generally improved living standards, a relatively higher number of mothers in better social circumstances, a greater urban influence, changed lifestyle and hygienic measures. Schleisner's efforts are considered to have had major significance when conditions are compared with those on the Scottish island of St Kilda where the situation was the same and improved only just before the turn of the century.
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Affiliation(s)
- Geir W Jacobsen
- Department of Public Health and General Practice, Norwegian University of Science and Technology, 7491 Trondheim, Norway.
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Sachetti CG, de Carvalho RR, Paumgartten FJR, Lameira OA, Caldas ED. Developmental toxicity of copaiba tree (Copaifera reticulata Ducke, Fabaceae) oleoresin in rat. Food Chem Toxicol 2011; 49:1080-5. [PMID: 21266184 DOI: 10.1016/j.fct.2011.01.015] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2010] [Revised: 11/29/2010] [Accepted: 01/17/2011] [Indexed: 11/29/2022]
Abstract
The oleoresin of the copaiba tree (Copaifera sp., Fabaceae) is traditionally used in Brazilian herbal medicine to treat a variety of illnesses and symptoms. This study, conducted according to the OECD Guideline 414, provides data on the developmental toxicity of oleoresin from C. reticulata (COPA-R) in rats. Pregnant Wistar rats (25 per dose group) were treated by gavage with COPA-R (0, 500, 1000 and 1250 mg/kg bw/day) on gestation days (GD) 6-19 and Caesarean sections performed on GD20. Implantations, living and dead fetuses and resorptions were recorded. Half of the fetuses from each litter were examined for visceral abnormalities and the remaining were cleared and stained for skeleton evaluation. COPA-R was maternally toxic (reduced food intake and weight gain) and embryotoxic (lower fetal body weight and increased occurrence of fetal skeleton variations) at the two highest doses, but did not cause embryo deaths or fetal malformations at any dose level. The study derived an oral no-observed-adverse-effect-level (NOAEL) for maternal and developmental toxicity induced by COPA-R of 500 mg/kg bw/day. The results suggest that copaiba oleoresin does not pose a health risk to pregnant women when used according to the recommended doses (up to five drops, three times a day).
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Affiliation(s)
- Camile G Sachetti
- Laboratory of Toxicology, University of Brasilia, Brasilia, DF, Brazil
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