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An aqueous extract of Liu Wei Di Huang Wan alters the labeling of blood constituents with Technetium-99m

Chinese Science Bulletin 2013年第18期58卷 2061-2065页

作者： MATOS Vernica Soares de CARMO Fernanda Santos do DINIZ Claudia Leite NASCIMENTO ana Lucia Rosa pereira Márcia Oliveira FERNANDES Joelma Fonseca de Oliveira SANTOS-FILHO Sebastiao David MORENO Silvana Ramos Farias BERNARDO-FILHO Mario Departamento de Biofísica e Biometria Instituto de Biologia Roberto Alcantara GomesUniversidade do Estado do Rio de Janeiro

The Liu Wei Di Huang Wan is a formula of a traditional Chinese medicine that is used to treat asthma patients and has been shown to have several important properties,such as antioxidant and free radical scavenging *** influence of an extract of Liu Wei Di Huang Wan on the labeling of blood constituents with technetium-99m was *** blood(Wistar rats) was incubated with the extract,stannous chloride and technetium-99m,as sodium *** were centrifuged and aliquots of plasma and blood cells were separated and precipitated with trichloroacetic acid,to obtain soluble and insoluble fractions of the blood *** percentage of radioactivity(%ATI) in all the fractions was *** analysis of the results shows that the extract at the highest concentration used(70 mg/mL) decreased significantly(P<0.05) the %ATI(from 96.48 ± 1.19 to 54.46 ± 7.38) on blood cells compartment,(from 81.11 ± 4.15 to 61.33 ± 4.74) on insoluble fractions of blood cells and(from 65.91 ± 2.44 to 13.15 ± 3.62) on insoluble fractions of *** conclusion,the results suggest that the substances present on this extract can alter this labeling process,probably due to(i) redox properties(antioxidant and chelator activities) and/or(ii) specific actions in the binding sites where the 99mTc would be bound on the blood *** a consequence,precaution is suggested on the interpretation of the nuclear medicine results from performed with blood constituents labeled with 99m Tc in patients that have undertaken LWDHW,although the current findings were obtained in experimental animal models.

关键词：六味地黄丸血液成分标签水提物 Wistar大鼠氧化还原性能锝实验动物模型

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Effects of Environmental Water Contamination in the Reproductive System of Mice

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Journal of Environmental Protection 2013年第7期4卷 121-125页

作者： Paulo Augusto Amador pereira ana Julia Lichtenfels Luiz Alberto Amador pereira Olaf Malm Paulo Hilario Nascimento Saldiva Alfesio Luis Ferreira Braga Chin An Lin Environmental Epidemiology Study Group Laboratory of Experimental Air PollutionUniversity of Sao Paulo Faculty of Medical SciencesSao PauloBrazil Environmental Risk and Exposure Assessment Group Collective Health Post-Graduation ProgramCatholic University of SantosSantosBrazil Program of Environmental Biophysics and Biotechnology Institute of Biophysics Carlos Chagas FilhoFederal University of Rio de JaneiroRio de JaneiroBrazil Medical Clinics Department University of Sao Paulo Faculty of Medical SciencesSao PauloBrazil

This study investigated the effects on the reproductive system of balb-c mice exposed to water collected from different sources near to a deactivated fertilizer waste depositary. Eighty male mice were separated in four groups: Group A (mineral water);Group B (water from the water treatment station);Group C (water from Cubatao city);Group D (water from the waste depositary region). They were exposed to water since they were weaned until they reached sexual maturity, then they were coupled with females in reproductive age and after this mating time they were sacrificed. The evaluated parameters were testicle weight, sperm analysis, pregnancy rate, sex ratio of the offspring and Sertoli cell count. The analysis of the water did not show presence of pollutants in the Group “A” and Group “C” water. Group “B” showed low level of cadmium, 3.58 ± 0.50 μg/L. Group “D” showed the presence of PAH’s and high levels of lead (221 ± 16 μg/L), cadmiun (12.6 ± 1.2 μg/L) and mercury (5.3 ± 1.1 μg/L). The tests of Levene and Kolmogorov-Smirnov were employed to verify the homogeneity of the variances and the tack to the normal curve, respectively. ANOVA was used for parametric tests and Kruskall-Wallis was used for non-parametric tests, while Turkey tests were employed for multiple comparisons. There were no differences between groups in testicle weight, sperm analysis, pregnancy rate and Sertoli cell count. There was a significant reduction in sex-ratio of the offspring in Group B. This alteration cannot be explained by the cadmium levels in Group B water. In the present study we cannot associate the exposition to contaminated water from the waste depositary and reproductive alterations.

关键词： Pollution Reproduction Metals Organic Pollutants Mice

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Production and Recovery of Rhamnolipids Using Sugar Cane Molasses as Carbon Source

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Journal of Chemistry and Chemical Engineering 2010年第11期4卷 27-33页

作者： ana Carmen Santos Marcio Silva Bezerra Heloize dos Santos pereira Everaldo Silvino dos Santos GoreteRibeiro de Macedo Federal University of Rio Grande do Norte Center of Technology Chemical Engineering Department Biochemical Engineering Laboratory Campus Universitario Lagoa Nova 3000 CEP.＇59072-970 Natal Rio Grande do Norte Brazil

Biosurfactants were synthesized by Pseudomonas aeruginosa （P.A.）, using sugar cane molasses as carbon source. Assays were conducted in a shaker with agitation speed of 200 rpm, temperature of 38 ℃ and aeration ratio （Vm/Vf） of 0.4 and 0.6. A concentration of 3.0% was used for the carbon and energy source （molasses） and of 0.3% for the nitrogen source （NaNO3）. Samples were removed at regular times until 96 hours of cultivation. The reduction in surface tension was measured using the ring method; cell concentration was obtained by the dry mass and substrate consumption by the DNS method. The metabolite produced was extracted and quantified by the thioglycolic method. The results showed a maximum surface tension reduction of 46.57% after 60 h, 3.63 g/L of biomass after 8 h （μXmax =0.15 h^-1）, 79.60% of substrate consumption （μs= 0.67 h-1） and 4.47 g/L of rhamnolipid （μp=0.029 h^-1）.

关键词： Biosurfactants molasses rhamnolipids Pseudomonas aeruginosa.

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Development of Baccharis dracunculifolia(Asteraceae)Essential Oil Nanoemulsion and Its Biological Activity on Pre-pupae of Cochliomyia hominivorax(Diptera:Calliphoridae)

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Journal of Pharmacy and Pharmacology 2019年第6期7卷 293-308页

作者： Jaqueline Seugling Shirley Kuhnen Giuliano pereira de Barros Maria Beatriz Velerinho Letícia Mazzarino Patrizia ana Bricarello Animal Parasitology Laboratory Agrarian Sciences CenterFederal University of Santa CatarinaFlorianópolis 88034-001Brazil Biochemical and Animal Morphophysiology Laboratory Agrarian Sciences CenterFederal University of Santa CatarinaFlorianópolis 88034-001Brazil NanobioMat Agrarian Sciences CenterFederal University of Santa CatarinaFlorianópolis 88034-001Brazil

Myiasis is considered a serious medical condition in animals and humans that occurs predominantly in tropical *** hominivorax is one of the main fly species that causes myiasis and the actual geographic distribution includes the Caribbean and all of South America,except *** use of synthetic insecticides and endectocides in livestock for the myiasis treatment has resulted in insect resistance,while also causing residuals in the environment and contamination of animal food *** active compounds are considered an alternative for the sustainable management of insects,as they are biodegradable and less damaging to the *** study developed a nanoemulsion containing the essential oil of Baccharis dracunculifolia and evaluated its in vitro effects on *** *** pressure homogenization was used to develop the *** tests were carried out with the tested products using 15 larvae/repetition,for a total of 150 larvae per *** different concentrations of the nanoemulsion were tested shortly after preparation and after 120 days of *** the fresh formulation,at concentrations of 5,7.5,10,13.5,and 15%(w/v)we found mortality of 28,48,70,84,and 97%,respectively,while for the stored formulation,we found mortality of 17,36,51,81,and 92%.The larvicidal effect was similar,except for the concentrations of 5 and 10%(w/v)(p<0.05).Our results show that the natural based *** nanoemulsion can be considered a promising alternative for the treatment and control of myiasis caused by ***.

关键词： Natural products insecta phytotherapy larvicidal activity myiasis

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Chemical composition, antiparasitic and cytotoxic activities of aqueous extracts of Ziziphus joazeiro Mart

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Asian Pacific Journal of Tropical Biomedicine 2019年第5期9卷 222-226页

作者： Jacqueline Cosmo ANDrade ana Raquel pereira da Silva Ant?nia Thassya Lucas dos Santos Maria Audilene Freitas Yedda Maria Lobo Soares de Matos Maria Flaviana Bezerra Morais Braga Camila Fonseca Bezerra Maria Isabeli pereira Gon?alo Maria Celeste Vega Gomez Míriam Rolóm Cathia Coronel Paulo Riceli Vasconcelos Ribeiro Edy Sousa de Brito Henrique Douglas Melo Coutinho Microbiology and Molecular Biology Laboratory Biological Chemistry Department Regional University of Cariri-URCA Bioassays Laboratory-LABIO Federal University of Cariri-UFCA Brejo Santo University campus (CE) Center for the Development of Scientific Research Moisés Bertoni Foundation/Díaz Gill Laboratories Natural Products Chemistry Multiuser Laboratory LMQPN Embrapa Tropical Agroindustry

Objective: To compare the in vitro antiparasitic activity of aqueous extracts from Ziziphus joazeiro leaves and stem bark against Trypanosoma cruzi, Leishmania braziliensis, and Leishmania infantum, as well as to evaluate its cytotoxicity in mammalian cells, in addition to identifying the chemical composition of the extracts. Methods: Ziziphus joazeiro leaf and stem bark aqueous extracts were prepared by cold extraction maceration and subjected to ultra-efficient liquid chromatography coupled to a quadrupole/time of flight system. The susceptibility assays used Trypanosoma cruzi CLB5 strains and promastigote forms of Leishmania braziliensis and Leishmania infantum for antiparasitic activity of the extracts. Moreover, mammalian fibroblasts NCTC clone 929 were used for cytotoxicity analysis. Results: Terpenoid compounds, flavonoids and phenolic acid were identified in extracts. The stem bark aqueous extracts presented more significant results in terms of antiparasitic activity compared with the leaf aqueous extracts, especially against Leishmania braziliensis and Leishmania infantum promastigote forms with an IC50 < 500 μg/mL. The cytotoxicity evaluation showed moderate toxicity of the stem bark aqueous extracts, which is relevant information for the rational use of this plant part since it is widely used by the population. Conclusions: These preliminary results may contribute to the formulation of new therapeutic agents against this group of neglected diseases, so further investigations are required to delineate the mechanisms of action mainly of the aqueous extract of stem bark of Ziziphus joazeiro.

关键词： Antiepimastigote Antipromastigote UPLC-MS-ESI-QTOF

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Effect of propranolol on the splanchnic and peripheral renin angiotensin system in cirrhotic patients

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World Journal of Gastroenterology 2008年第44期14卷 6824-6830页

作者： Walkíria Wingester Vilas-Boas Antnio Ribeiro-Oliveira Jr Renata da Cunha Ribeiro Renata Lúcia pereira Vieira Jerusa Almeida ana Paula Nadu ana Cristina Sim■es e Silva Robson Augusto Souza Santos Laboratório de Hipertenso Departamento de Fisiologia e BiofísicaICB-UFMGAv. Antonio Carlos6627Belo HorizonteMG31270-901Brazil Laboratório de Endocrinologia Departamento de Clínica MédicaFaculdade de Medicina-UFMGAv. Alfredo Balena190Belo HorizonteMG30130-100Brazil Departamento de Pediatria Faculdade de MedicinaUniversidade Federal de Minas Gerais (UFMG)Av. Alfredo Balena190Belo HorizonteMG30130-100Brazil

AIM:To evaluate the effect of β-blockade on angiotensins in the splanchnic and peripheral circulation of cirrhotic patients and also to compare hemodynamic parameters during liver transplantation according to propranolol pre-treatment or not. METHODS:Patients were allocated into two groups:outpatients with advanced liver disease(LD) and during liver transplantation(LT). Both groups were subdivided according to treatment with propranolol or not. Plasma was collected through peripheral venipuncture to determine plasma renin activity(PRA),Angiotensin(Ang) Ⅰ,Ang Ⅱ,and Ang-(1-7) levels by radioimmunoassay in LD group. During liver transplantation,hemodynamic parameters were determined and blood samples were obtained from the portal vein to measure renin angiotensin system(RAS) ***:PRA,Ang Ⅰ,Ang Ⅱ and Ang-(1-7) were signifi cantly lower in the portal vein and periphery in all subgroups treated with propranolol as compared to non-treated. The relationships between Ang-(1-7) and Ang Ⅰ levels and between Ang Ⅱ and Ang Ⅰ were significantly increased in LD group receiving propranolol. The ratio between Ang-(1-7) and Ang Ⅱ remained unchanged in splanchnic and peripheral circulation in patients under β-blockade,whereas the relationship between Ang Ⅱ and Ang Ⅰ was significantly increased in splanchnic circulation of LT patients treated with propranolol. During liver transplantation,cardiac output and index as well systemic vascular resistance and index were reduced in propranolol-treated subgroup. CONCLUSION:In LD group,propranolol treatment reduced RAS mediators,but did not change the ratio between Ang-(1-7) and Ang Ⅱ in splanchnic and peripheral circulation. Furthermore,the modification of hemodynamic parameters in propranolol treated patients was not associated with changes in the angiotensin ratio.

关键词： β-blockade Cirrhosis Renin angiotensinsystem Angiotensin-(1-7)

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Polyphenolic composition, antibacterial, modulator and neuroprotective activity of Tarenaya spinosa(Jacq.) Raf.(Cleomaceae)

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Asian Pacific Journal of Tropical Biomedicine 2019年第1期9卷 12-17页

作者： Francisca Samara Muniz dos Santos Jose Weverton Almeida Bezerra Jean Paul Kamdem Aline Augusti Boligon Marli Matiko Anraku ana Raquel pereira da Silva Kleber Ribeiro Fidelis Nadghia Figueiredo Leite Antonio Ivanildo Pinho Henrique Douglas Melo Coutinho Jose Edilson Goncalves dos Santos Microscopy Laboratory Regional University of Cariri (URCA) Program Post graduate in Plant Biology (UFPE) Phytochemical Laboratory Department of Industrial Pharmacy Federal University of Santa Maria (UFSM) Microbiology and Molecular Biology Laboratory Regional University of Cariri (URCA)

Objective: To evaluate the antibacterial activity and neuroprotective capacity of the ethanolic and aqueous extracts of Tarenaya spinosa(T. spinosa) as well as to determine and quantify some of its polyphenols by high performance liquid chromatography with diode-array detection(HPLC-DAD). Methods: The bacterial Escherichia coli, Staphylococcus aureus and Pseudomonas aeruginosa strains, grown in Heart Agar Infusion, were tested. The drugs gentamicin, norfloxacin and imipenem were used to evaluate the modulating or antagonistic capacity of the T. spinosa extracts. The extract was analysed by HPLC-DAD to determine the main phenolic compounds. For the cell viability tests, individual heads of the Nauphoeta cinerea arthropod model were removed, homogenized in Trifluoromethyl ketone and centrifuged afterwards. Subsequently, 20 μL of NaN O2 were added to the biological material, except in the control group, to evaluate the protection capacity of the extracts. The homogenate of the insect heads was incubated for 2 h in tubes containing tetrazolium bromide. Results: HPLC-DAD demonstrated that the ethanolic extract of T. spinosa presented caffeic acid as the major compound. The ethanolic extract also showed neuroprotective effects at concentrations ≥ 10 μg/mL, while aqueous extract was shown to have a protective effect only at the concentration of 100 μg/mL. The aqueous extract demonstrated a clinically relevant antibacterial activity against the Staphylococcus aureus multidrug resistant strain-MDR, with MIC 512 μg/m L. However, when the extracts were associated with gentamicin and imipenem, a synergism was detected against Staphylococcus aureus and Escherichia coli MDR strains. Conclusions: Although it does not present an antibacterial action, the extracts of T. spinosa can be used in the pharmaceutical industries since its extracts show modulating action of drugs. Besides, these natural products have neuroprotective capacity.

关键词： Tarenaya spinosa Cleome spinose Nauphoeta cinerea Synergism Antibiotic resistance

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Seed Germination and Production of Erythrina mulungu and Erythrina velutina Plantlets

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American Journal of Plant Sciences 2014年第5期5卷 535-540页

作者： ana Maria Soares pereira Verena Trevizani Alves Souza Juliana da Silva Coppede Suzelei de Castro Franca Bianca Waléria Bertoni ana Valéria Vieira de Souza Department of Biotechnology University of Ribeirao PretoRibeirão PretoBrazil Embrapa Semiárido Centro de Pesquisa Agropecuaria do Tropico Semi-AridoPetrolinaBrazil

Species of the genus Erythrina are frequently used as ornamental plants and in projects to restore degraded areas. Also, extracts from its shoots and stems are popularly used as a herbal medicine with validated activity on the central nervous system. The objective of this study was to evaluate E. mulungu and E. velutina seed germination and seedling development potential aiming commercial scale production of those species. Seeds stored for one or twelve months at 10°C ± 2°C were sown in sand, soil or Plantmax? substrates and evaluated for germination and seedling development. Subsequently, seedlings sprouted in Plantmax? were transferred to polyethylene bags and kept in greenhouse, under direct sunlight for plant development (plant height, stem diameter and root length pivoting) evaluations. Four-month-old plantlets were transplanted to the field and after a period of one year the collar diameter and shoot height (of each plant were measured. Seed germination rates of both species grown in soil and in Plantmax? were significantly high (over 80%). Storing seeds for 1 month did not inhibit germination. However, seeds stored for twelve months had germination reduced by more than a quarter. The development of plants in greenhouse and in the field was satisfactory, indicating the viability of producing E. mulungu and E. velutina on a commercial scale, in order to meet the expanding market demand for herbal medicines.

关键词： Medicinal Plants Herbal Medicines Cerrado Caatinga Rhizobium

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Therapeutic and prophylactic thalidomide in TNBS-induced colitis: Synergistic effects on TNF-α, IL-12 and VEGF production

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World Journal of Gastroenterology 2007年第15期13卷 2166-2173页

作者： ana Teresa Carvalho Heitor Souza Antonio Jose Carneiro Morgana Castelo-Branco Kalil Madi Alberto Schanaider Flavia Silva Fernando Antonio pereira Júnior Márcia G pereira Cláudio Tortori Ilana Dines Jane Carvalho Eduardo Rocha Celeste Elia Departamento de Clínica Médica Hospital Universitário Clementino Fraga Filho Brazil Departamento de Histologia e Embriologia Laboratório de Imunologia Celular Instituto de Ci(e|^)ncias BiomédicasUniversidade Federal do Rio de Janeiro21941-590Brazil Laboratório Multidisciplinar de Pesquisa anatomia Patológica Hospital Universitário Clementino Fraga FilhoBrazil e Cirurgia Experimental Hospital Universitário Clementino Fraga Filho Brazil

AIM： To evaluated the therapeutic and prophylactic effect of thalidomide on 2, 4, 6-trinitrobenzene sulfonic acid （TNBS）-induced colitis. Thalidomide has been reported to downregulate the expression of tumor necrosis factor α （TNF-α）, IL-12, and vascular endothelial growth factor （VEGF）, hallmarks of intestinal inflammation in Crohn＇s disease （CD）. METHODS： Male Wistar rats were divided in five groups of ten animals each. Four groups received a rectal infusion of TNBS in ethanol. The first group was sacrificed 7 d after colitis induction. The second and third groups received either thalidomide or placebo by gavage and were sacrificed at 14 d. The fourth group received thalidomide 6 h before TNBS administration, and was sacrificed 7 d after induction. The fifth group acted as the control group and colitis was not induced. Histological inflammatory scores of the colon were performed and lamina propria CD4＋ T cells, macrophages, and VEGF＋ cells were detected by immunohistochemistry. TNF-α and IL-12 were quantified in the supernatant of organ cultures by ELISA. RESULTS： Significant reduction in the inflammatory score and in the percentage of VEGF＋ cells was observed in the group treated with thalidomide compared with animals not treated with thalidomide. Both TNF-α and IL-12 levels were significantly reduced among TNBS induced colitis animals treated with thalidomide compared with animals that did not receive thalidomide. TNF-α levels were also significantly reduced among the animals receiving thalidomide prophylaxis compared with untreated animals with TNBS-induced colitis. Intestinal levels of TNF-α and IL-12 were significantly correlated with the inflammatory score and the number of VEGF＋ cells. CONCLUSION： Thalidomide significantly attenuates TNBS-induced colitis by inhibiting the intestinal production of TNF-α, IL-12, and VEGF. This effect may support the use of thalidomide as an alternate approach in selected patients with CD.

关键词： Thalidomide Experimental colitis Inflammatory bowel disease Tumor necrosis factor α IL-12 Vascular endothelial growth factor

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Comparison of morphological and functional outcomes of mouse sciatic nerve repair with three biodegradable polymer conduits containing poly (lactic acid)

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Neural Regeneration Research 2018年第10期13卷 1811-1819页

作者： Fernanda Marques Pestana Rui C.C.Domingues Júlia Teixeira Oliveira Daniela F.P.A.Durco Camila Oliveira Goulart Henrique Rocha Mendonca Anne Caroline Rodrigues dos Santos Natália Tavares de Campos Beatriz Theodoro da Silva Cristina Cardoso pereira Cristiano Piacsek Borges ana Maria Blanco Martinez Pós Graduacao em Ciências Morfológicas Instituto de Ciências Biomédicas-UFRJRio de Janeiro RJ Brazil anatomia Patológica-Faculdade de Medicina-HUCFF-UFRJ Rio de Janeiro RJ Brazil Laboratório de Neurodegeneracao e Reparo-Faculdade de Medicina-HUCFF-UFRJ Rio de Janeiro RJ Brazil Programa de Eng. Química COPPE-UFRJRio de Janeiro Brazil Polo Universitário de Macaé Laboratório Integrado de Produtos Bioativos e BiociênciasMacaê UFRJ Brazil

Poly（lactic acid）（PLA）-containing nerve guidance conduits（NGCs） are currently being investigated for nerve repair as an alternative to autograft, which leads to permanent functional impairment in the territory innervated by the removed nerve. Combination of polymers modifies the physical properties of the conduits, altering their nerve-guidance properties. Conduits made from PLA-only or combined with other polymers have been used successfully for nerve repair, but their efficiency has not been compared. We compared the morphological and functional outcomes of peripheral nerve repair by using NGCs made of poly（lactic acid） and combined or not with polycaprolactone（PLA/PCL） or polyvinylpyrrolidone（PLA/PVP）. To assess the functional recovery, we employed a mechanical hyperalgesia analysis, sciatic functional index（SFI）, and electroneuromyography. The mechanical hyperalgesia analysis showed that the PLA group improved more rapidly than the PLA/PVP and PLA/PCL groups; similarly, in the electroneuromyography assay, the PLA group exhibited higher amplitude than the PLA/PCL and PLA/PVP groups. However, the SFI improvement rates did not differ among the groups. Morphologically, the PLA group showed more vascularization, while the nerve fiber regeneration did not differ among the groups. In conclusion, the PLA-only conduits were superior to the other NGCs tested for nerve repair.

关键词： sciatic nerve tubulization biodegradable conduit poly(lactic acid) regeneration

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