35 research outputs found

    Ginger Essential Oil Ameliorates Cisplatin-Induced Nephrotoxicity in Mice

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    Purpose: To investigate the effect of ginger essential oil (GEO) in an experimental model of cisplatininduced nephrotoxicity.Methods: Male mice were divided into treatment six groups (n = 7), namely: Groups I (saline), II and III (cisplatin, 10 mg/kg, i.p.) euthanized in 3th and 6th days, respectively, and IV, V and IV (GEO, 100, 200 and 400 mg/kg/day, respectively, by gavage 3, 4, 5 and 6 days after cisplatin injection). Creatinine levels and protein/creatinine ratio were determined in plasma and urine, respectively. Bone morphogenic protein (BMP-7) and tumor necrosis factor (TNF-α) levels of kidney tissues were determined while mRNA expression levels were obtained using real-time polymerase chain reaction.Results: GEO treatment reduced significantly creatinine levels to 0.53 ± 0.02; 0.48 ± 0.008 and 0.46 ± 0.02 at 100, 200 and 400 mg/kg, respectively, compared with control (0.70 ± 0.01) [p<0.05] but increased protein : creatinine ratio to 0.21 ± 0.01, 0.22 ± 0.01, 0.24 ± 0.02 compared with control (0.06 ± 0.008) [p<0.05]. Pro-inflammatory TNF-α mRNA expression was decreased to 1.46 ± 0.21, 1.39 ± 0.19 and 1.36 ± 0.09, at GEO doses of 100, 200 and 400 mg/kg, respectively, while anti-fibrotic BMP-7 mRNA expression increased to 2.05 ± 0.26 and 2.44 ± 0.42 at doses of 200 and 400 mg/kg, respectively, compared with control (0.59 ± 0.39, p < 0.05).Conclusion: GEO treatment attenuates cisplatin-induced nephrotoxicity, in part, by modulating some inflammatory cytokines.Keywords: Zingiber officinale, Ginger, Roscoe, Essential oil, Nephrotoxicity, Cisplati

    Selectivity of the antimetastatic and cytotoxic effects of 1-p-(3,3-dimethyl-1-triazeno)benzoic acid potassium salt (+/-)-1,2-di(3,5-dioxopiperazin-1-yl)propane, and cyclophosphamide in mice bearing Lewis lung carcinoma.

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    The effects of two selective antimetastatic agents, 1-p-(3,3-dimethyl-1-triazeno)benzoic acid potassium salt (DM-COOK), and (+/-)-1,2-di(3,5-dioxopiperazin-1-yl)propane, have been examined in comparison with those of a cytotoxic agent, cyclophosphamide, in mice bearing Lewis carcinoma. Cyclophosphamide at the two highest dosages causes a strictly related and pronounced inhibition (to less than 10\%) of the weight of the s.c. tumor, spontaneous metastases, and lung colonies formed after i.v. injection of tumor cells (artificial metastases); this behavior is consistent with a purely cytotoxic mechanism. At the three dosages used, (+/-)-1,2-di(3,5-dioxopiperazin-1-yl)propane reduces the weight of spontaneous metastases to less than 3\%. A dose-dependent reduction of artificial metastasis weight is also observed. At the highest dose, artificial metastasis weight is reduced to about 5\%, and s.c. tumor mass is significantly lowered to 40\%. These effects are consistent with the combined occurrence of cytotoxic and selective antimetastatic action, although the latter appears to be predominant. At the three dosages used, DM-COOK markedly depresses the weight and number of spontaneous metastases to about 10\%, leaving the formation of artificial metastases unaffected and causing no significant effect on primary tumor growth. The effects of these agents on the fractional incorporation of [3H]thymidine in tumor cells further indicate that only DM-COOK is devoid of cytotoxic effects for pulmonary and s.c. tumors. In hosts pretreated with DM-COOK, no reduction in the formation either of spontaneous or of artificial metastases is observed. These data indicate that DM-COOK acts directly on tumor cells and that it presumably inhibits their release from the primary tumor into the bloodstream

    From nearly zero energy buildings (NZEB) to positive energy buildings (PEB): The next challenge - The most recent European trends with some notes on the energy analysis of a forerunner PEB example

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    The European energy policies introduced the Nearly Zero Energy Building (NZEB) objective (Directive, 2010/31/EU and 2018/844/UE) to stimulate the energy transition of the construction sector. EU programs, specifically “Horizon 2020”, promote the NZEB design and also its evolution, namely the Positive Energy Building (PEB) model. Based on the most recent developments, a critical review of the main actions of the European Union towards the development of the NZEB and PEB design models has been conducted. Some considerations on advanced materials and technologies (PCM, VIP, smart glass, integrated photovoltaic systems) have also been added. Finally, a case study is presented (single-family residential NZEB) to show how a careful and integrated design of the building envelope and systems not only allows to obtain an almost total coverage of the energy consumption by renewable sources, but also to generate an energy surplus that could be shared with urban grids (PEB potential)

    [Double outlet right ventricle. Angiographic study]

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    Cineangiographic study in 41 patients with double outlet right ventricle was performed. Segmental approach was utilized to describe the anatomical features. Atrial situs was inversus in 5 cases, ambiguous in 3 and solitus in the other cases. Atrio-ventricular (a-v) connections were biventricular in 34 and univentricular in 7. A common a-v valve was found in 2 cases. Mitral valve was imperforated in 1 and straddling in 1. The most frequent relationship between aorta and pulmonary artery was side by side (41.1%). Ventricular septal defect was subaortic in 14, subpulmonary in 9, double committed in 5 and non committed in 6. In 27 cases a double infundibulum was present; in 7 patients we described a subpulmonary conus only. Some nosological aspects of this congenital heart disease are discussed particularly in conformity with the surgical needs

    Avaliação da atividade antiinflamatória do coentro (Coriandrum sativum L.) em roedores

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    Coriandrum sativum L. (Umbelliferae), conhecido popularmente por coentro, é uma planta doméstica cultivada nas diversas partes do mundo, inclusive no Brasil. As folhas e frutos do coentro são utilizados como condimento em culinária e na medicina popular como analgésica, antirreumática, carminativa e colagoga. O objetivo deste estudo foi avaliar o efeito do tratamento com o óleo essencial (OEC) e o extrato hidroalcóolico (EHC) do coentro em modelos experimentais de inflamação em roedores. A atividade antiinflamatória do coentro foi avaliada por meio dos testes de pleurisia em ratos e formação do edema de orelha em camundongos. A pleurisia foi induzida pela carragenina em animais tratados ou não com EHC. O edema de orelha induzido pela aplicação tópica de óleo de cróton e a atividade da mieloperoxidase foi avaliada em camundongos tratados ou não com OEC ou EHC. No teste da pleurisia o tratamento com EHC promoveu significativa diminuição no edema pleural, mas não sobre a migração leucocitária. Além disso, diferentemente ao observado com o tratamento com OEC, o uso tópico de EHC diminui significativamente o edema de orelha e a migração celular induzidos pela aplicação do óleo de cróton. Os dados indicam que EHC apresenta atividade antiinflamatória quando administrado pelas via oral e tópica, enquanto que OEC não apresenta atividade antiinflamatória tópica

    Epidemiology of stroke and cerebral protection in patients undergoing transcatheter aortic valve replacement

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    The introduction into clinical practice of transcatheter aortic valve implantation (TAVI) has led to a significant change in the therapeutic paradigm for patients with valvular aortic stenosis. However, in parallel with the benefits obtained in prognosis and quality of life, an inherent risk of major cerebral thromboembolic events has been observed. In different studies this risk has been estimated between 2% and 6%. In order to reduce the incidence of cerebrovascular accidents during TAVI, several brain protection systems have been developed but, to date, none has obtained sufficient clinical evidence to be implemented on a large scale, and they are therefore used only in selected cases. Furthermore, periprocedural drug therapy and follow-up are still the subject of extensive discussion in the scientific community. This paper reviews the topic of stroke prevention in patients undergoing TAVI for both the periprocedural and postprocedural aspects
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