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Immunosuppressed individuals, including those undergoing cancer treatment, are more vulnerable to fungal infections, such as oral candidiasis, impacting their quality of life. Given the limitations of current therapies, the discovery of new antifungal agents, including those of natural origin, is crucial for the proper managing of these infections. We investigated the phytochemical profile and antifungal activity of both the essential oil and crude ethanolic extract (CEE) obtained from Eugenia luschnathiana against reference strains and clinical isolates of Candida from oncology patients. Toxicological characterization was also conducted. Gas chromatography coupled to mass spectrometry (GC-MS) and 1H Nuclear Magnetic Resonance (NMR) were used for phytochemical analysis. Antifungal evaluation was conducted to determine the Minimum Inhibitory Concentration (MIC) and Minimum Fungicidal Concentration (MFC); evaluation of potential mechanisms of action; activity on a fungal biofilm; evaluation of the cytotoxic effect on human keratinocytes of the HaCat lineage by the MTT method; determination of lethality for Artemia salina larvae. GC-MS identified a predominance of sesquiterpenes in the essential oil, notably (E)-Caryophyllene. The 1H NMR spectrum identified aliphatic, osidic, and aromatic compounds in the crude ethanolic extract. The essential oil showed no antifungal activity. However, the CEE exhibited fungicidal activity, with MIC and MFC ranging from 1.95 µg/mL to 3.90 µg/mL. The antifungal effect was affected by sorbitol, indicating a possible mechanism targeting fungal cell wall structures. At low concentration (19.5 µg/mL), the CEE inhibited 62,78% of C. albicans biofilm. The CEE demonstrated a promising toxicity profile, with an LC50 of 142.4 µg/mL against Artemia salina. In conclusion, the CEE from Eugenia luschnathiana exhibited potent antifungal activity, likely through cell wall disruption, biofilm inhibition, and a favorable toxicity profile for further exploration.

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The importance of balanced dietary habits, which include appropriate amounts of antioxidants to maintain the immune system, has become increasingly relevant during the current SARS-CoV-2/COVID-19 pandemic, because viral infections are characterized by high oxidative stress. Furthermore, the measures taken by governments to control the pandemic have led to increased anxiety, stress, and depression, which affect physical and mental health, all of which are influenced by nutritional status, diet, and lifestyle. The Mediterranean diet (MD), Atlantic diet (AD), and the Dietary Guidelines for Americans all provide the essential vitamins, minerals, and phenolic compounds needed to activate enzymatic and nonenzymatic antioxidant responses. However, viral pandemics such as the current COVID-19 crisis entail high oxidative damage caused by both the infection and the resultant social stresses within populations, which increases the probability and severity of infection. Balanced dietary patterns such as the MD and the AD are characterized by the consumption of fruit, vegetables, legumes, olive oil, and whole grains with low intakes of processed foods and red meat. For a healthy lifestyle in young adults, the MD in particular provides the required amount of antioxidants per day for vitamins D (0.3-3.8 µg), E (17.0 mg), C (137.2-269.8 mg), A (1273.3 µg), B-12 (1.5-2.0 µg), and folate (455.1-561.3 µg), the minerals Se (120.0 µg), Zn (11.0 mg), Fe (15.0-18.8 mg), and Mn (5.2-12.5 mg), and polyphenols (1171.00 mg) needed to maintain an active immune response. However, all of these diets are deficient in the recommended amount of vitamin D (20 µg/d). Therefore, vulnerable populations such as elders and obese individuals could benefit from antioxidant supplementation to improve their antioxidant response. Although evidence remains scarce, there is some indication that a healthy diet, along with supplemental antioxidant intake, is beneficial to COVID-19 patients.

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Municipal solid waste (MSW) management in Brazil faces major challenges in order to meet the requirements proposed by the National Solid Waste Policy, which has been in force since 2010 and complicates decision-making, especially in small municipalities. In this context, sustainability indicators are important support tools that help in setting out performance actions for municipal sustainable development. The main objective of this article is to evaluate the four sustainability dimensions (social, environmental, economic, and legal/institutional) using sustainability indicators for MSW management in the Recife Metropolitan Region (RMR) in Northeast Brazil. To do this, the progress of the region was evaluated against the principal goals and guidelines proposed by solid waste plans and by the United Nations Sustainable Development Goals. It was found that some progress has been achieved in recent years, such as the closure of dumps, a reduction of the per capita MSW mass collected, and an increase in the coverage rate for solid household waste collection. However, selective collection and financial autonomy still fall well short of the region's goals. According to the results of this study, municipalities in the RMR require more environmental education and joint actions involving government, the private sector, and the general population.

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OBJECTIVE: To evaluate the clinical evolution of patients with implantation of ventricular assist device (VAD) and identify the intervening factors for death. METHODS: This analytical, retrospective study was carried out in a public reference hospital in cardiopulmonary diseases located in northeastern Brazil. The study population encompassed the medical records of 16 patients who underwent VAD implantation. Data collection took place from January to August 2016, through the consultation of medical records. Descriptive analysis, odds ratio, and the Fisher's Exact, Wilcoxon, Friedman and t-tests were used to analyze the data. RESULTS: All patients experienced complications during the use of the device, with bleeding being the main cause (11 [68.8%]). There was a significant decrease in noradrenaline (P = .025), milrinone (Primacor; P = .007), and dobutamine (P = .046) flow rates with the clinical evolution of patients. Regarding hematologic parameters, the use of VAD promoted a significant improvement in hemoglobin (P < .001), hematocrit (P = .003), activated partial thromboplastin time (P = .013), and fibrinogen (P = .049) values at the 3 time points analyzed. Regarding the clinical outcome of the patients, the majority (10 [62.5%]) underwent cardiac transplantation. CONCLUSIONS: This study allowed for better knowledge of the clinical evolution of patients with VAD implantation, highlighting the benefits of this type of device as a bridge for heart transplantation.

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Determining the factors associated with NCCLs and DH in populations could guide the implementation of specific preventive measures. This study evaluated the clinical features and factors associated with non-carious cervical lesions (NCCLs) and dentin hypersensitivity (DH) in a Brazilian population. The participants were 118 patients at the Dentistry Clinic of our dental school. They completed an interview to obtain personal information and determine the possible factors associated with NCCLs and DH. Clinical examination was undertaken to record the NCCLs, shape of the lesion and certain occlusal factors. DH was diagnosed by air and probe tests. Data were analysed with the multilevel Poisson regression and prevalence ratios, and the respective 95% confidence intervals were calculated. The prevalence of NCCLs and DH among patients was 67·8% and 51·7%, respectively. Of a total number of 2902 teeth examined, 9·65% had NCCLs and 5·82% were sensitive to air. The most affected teeth for both conditions were the premolars. Most of the NCCLs were wedge-shaped and located in the maxilla. The factors associated with NCCLs and DH were age and presence of premature occlusal contacts. NCCLs were also significantly associated with consumption of wine and alcoholic beverages, and DH with consumption of acidic fruits and juices. NCCLs were a common finding, with higher frequency in more advanced age groups, the maxilla and premolars. A significant association occurred between NCCLs, premature contacts and consumption of wine and alcoholic beverages. DH was associated with NCCLs, premature contacts and with the consumption of acidic fruits and juices.

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AIM: To investigate the ability of newly developed powdered coconut water formulas (ACP) with different osmolarities to maintain the viability of periodontal ligament (PDL) cells over time compared with other solutions. METHODOLOGY: Dogs teeth were extracted and stored for two periods, 3 h or 24 h, in the following media: long-shelf life CW (CW), pH-adjusted long-shelf life CW (pH-CW) and powdered CW that was pH and osmolality adjusted (ACP-404-I, 250 mOsm kg-1 H2 O; pH 7.0; ACP-404-II, 372 mOsm kg-1 H2 O; pH 7.0; ACP-404-III, 300 mOsm kg-1 H2 O; pH 7.4). The positive control group (Pc) corresponded to immediate measurement after tooth extraction, and two negative controls (Nc) corresponded to 3 h and 24 h of dry time. PDL cells were extracted, and cell viability analysed by Trypan blue exclusion. Data were analysed statistically using two-way anova followed by the Tukey test and one-way anova followed by the Dunnett test (P < 0.05). RESULTS: At 3 h and 24 h, ACP-404-I had a performance similar to those of ACP-404-II and pH-CW, with significantly higher (P = 0.004) percentages of viable cells than ACP-404-III and CW. The positive control group had a significantly higher (P = 0.002) percentage of viable cells than the negative control groups, CW and ACP-404-III, irrespective of the period evaluated. CONCLUSION: Powdered coconut water formulas, ACP-404-I and ACP-404-II, preserved viability for up to 24 h.

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Shiga toxin-producing Escherichia coli (STEC) can cause conditions ranging from diarrhea to potentially fatal hemolytic uremic syndrome. Enteropathogen adaptation to the intestinal environment is necessary for the development of infection, and response to bile is an essential characteristic. We evaluated the response of STEC strain M03 to the bile salt sodium deoxycholate through proteomic analysis. Cell extracts of strain M03 grown with and without sodium deoxycholate were analyzed by two-dimensional electrophoresis; the differentially expressed proteins were identified using matrix-assisted laser desorption/ionization time-of-flight mass spectrometry. Three proteins were found to be differentially expressed due to sodium deoxycholate. Glycerol dehydrogenase and phosphate acetyltransferase, which are involved in carbon metabolism and have been associated with virulence in some bacteria, were downregulated. The elongation factor Tu (TufA) was upregulated. This protein participates in the translation process and also has chaperone activities. These findings help us understand strategies for bacterial survival under these conditions.

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OBJECTIVES: This study investigated the radio-opacity of commercially available glass ionomer cements (GICs), flowable resin composites (FRCs) and calcium hydroxide cements (CHCs) and compared this with the radio-opacity of enamel, dentine and aluminium stepwedge. 16 GICs, 8 FRCs and 4 CHCs were analysed. METHODS: Three sets of three samples were prepared: 1 mm, 2 mm and 3 mm thickness for GIC and FRC and 1 mm thickness for CHC. Specimens of enamel and dentine with the same thicknesses were obtained. As a control, an aluminium stepwedge was used. Radiographs were taken with a digital Kodak RVG 5000 (0.32 s, 30 cm). The images were analysed using the Image Tool(®) program (v. 2.00; The University of Texas Health Science Center, San Antonio, TV) to obtain the mean grey values. RESULTS: Analysis of variance was used to investigate the significance of differences among the groups. For pairwise comparisons, the Tukey test was applied (p < 0.05). The GICs Ionomaster (Wilcos, Petrópolis, Brazil), Maxxion (FGM, Joinville, Brazil), Bioglass R (Biodinâmica, Ibiporã, Brazil), Bioglass F (Biodinâmica), Vidrion R (SS White, Rio de Janerio, Brazil) and Vidrion F (SS White), presented radio-opacity lower than that of dentine. All FRCs and CHCs studied showed radio-opacity higher than that of dentine. Vitro Fil (DFL, Rio de Janeiro, Brazil), Magic Glass (Vigodent, Rio de Janeiro, Brazil), Vitrebond (3M, Sumaré SP, Brazil), Riva Self Cure (SDI, Victoria, Australia), Riva Light Cure (SDI), Fill Magic (Vigodent), Opallis (FGM, Joinville, Brazil), Surefil SDR (Dentsply, Milford, DE), Tetric N (Ivoclar Vivadent, Schaan, Lichtenstein), Tetric (Ivoclar Vivadent), Hydro C (Dentsply, Petrópolis, Brazil), Hydcal (Technew, Madalena, Portugal) and Liner (Vigodent) showed radio-opacity similar to or greater than that of enamel for all thicknesses. CONCLUSIONS: The increased thickness of the materials studied increases their radio-opacity. Some commercially available GICs used as a base and liner for restorations have a very low radio-opacity (Ionomaster, Maxxion, Bioglass R, Bioglass F, Vidrion R and Vidrion F).

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The process of reservoir eutrophication has been recognised as a central problem in tropical reservoir environmental quality. Effects of eutrophication are complex interactions involving a decrease in water quality, especially loss of aquatic biodiversity, occurrence of undesired species such as cyanobacteria with its cyanotoxins, mass development of macrophytes such as Egeria densa with its mechanical impact on turbines, and an increase in greenhouse gas emissions, mainly of methane. The eutrophication process can be described by the OECD critical load concept or related models. The phosphorus use efficiency is given by the Chl a-P - relationship, indicating eutrophic conditions by only 10 µg L(-1) P in Itaparica Reservoir, Brazil. Eutrophication of the reservoir is quantified for internal phosphorus sources (inflow, mineralisation of inundated soils and vegetation, net cage aquaculture) and external ones (agriculture, emissions of natural caatinga vegetation and rural communities) The actual internal P load is calculated to be 0.40 g m(-2) a(-1), and the critical P load is given with 1.20 g m(-2) a(-1). The external P load amounts about 1.16 g m(-2) a(-1) and thus exceeds the critical export rate of 7.1 kg km(-2) a(-1) by 50%, thus a bundling of measurements has to be considered when attempting to promote re-oligotrophication.

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The aim of this study was to evaluate the erosive potential of orange juice modified with food-approved additives: 0.4 g/l of calcium (Ca) from calcium lactate pentahydrate, 0.2 g/l of linear sodium polyphosphate (LPP) or their combination (Ca+LPP) were added to a commercially available orange juice (negative control, C-). A commercially available calcium-modified orange juice (1.6 g/l of calcium) was the positive control (C+). These juices were tested using a short-term erosion in situ model, consisting of a five-phase, single-blind crossover clinical trial involving 10 subjects. In each phase, subjects inserted custom-made palatal appliances containing 8 bovine enamel specimens in the mouth and performed erosive challenges for a total of 0 (control), 10, 20, and 30 min. Two specimens were randomly removed from the appliances after each challenge period. Enamel surface microhardness was measured before and after the clinical phase and the percentage of surface microhardness change (%SMC) was determined. Before the procedures, in each phase, the subjects performed a taste test, where the juice assigned to that phase was blindly compared to C-. Overall, C+ showed the lowest %SMC, being the least erosive solution (p < 0.05), followed by Ca+LPP and Ca, which did not differ from each other (p > 0.05). LPP and C- were the most erosive solutions (p < 0.05). Taste differences were higher for C+ (5/10 subjects) and Ca (4/10 subjects), but detectable in all groups, including C- (2/10 subjects). Calcium reduced the erosive potential of the orange juice, while no protection was observed for LPP.

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The dichloromethane and n-butanol extracts obtained from fresh bulbs of Hippeastrum vittatum (Amaryllidaceae), collected in Southern Brazil, were evaluated for their cytotoxic activity in vitro against five human cell lines (HT29 colon adenocarcinoma, H460 non-small cell lung carcinoma, RXF393 renal cell carcinoma, MCF7 breast cancer, and OVCAR3 epithelial ovarian cancer), using the sulphorhodamine B assay. Both extracts showed potential antiproliferative activity. From CH(2)Cl(2) fraction, three alkaloids were isolated: lycorine, vittatine and montanine. The two last compounds were submitted to the antiproliferative assay and the highest level of cytotoxicity was found for the alkaloid montanine.

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The experiment was carried out to determine the antibody levels to infectious bronchitis virus (IBV) in 1120 broilers of two broiler flocks, both from the same parental flock and free from previous vaccination. Forty chicks of each line were alloted to the control group and the sera were tested by indirect ELISA. The vaccination program consisted on the administration of commercial vaccines against IBV at 10 and 25 days of age. Chicks with low levels of maternal antibodies (Mab) did not show significant titers to the first vaccinal stimulus. They presented a vaccinal response to the second vaccinal stimulus reaching the top around GMT 1100 at 45 days. Chicks with high Mab titers did not show significant titers to the primary and secondary vaccinal stimuli, reaching peak levels of GMT 500 at 45 days. No antibody response was detected after the primary vaccination at day 10. A delayed antibody response was detected after the secondary vaccination on day 25, indicating no previous priming. The maternal antibody titers can interfere on the response to the first and second vaccinal stimulus promoting the neutralization of the first vaccination and a different response to the second one, according to high or low maternal antibodies.

Utilizaram-se 1120 pintos de um dia de idade, de duas linhagens, não vacinados, para determinar os níveis de anticorpos para o vírus da bronquite infecciosa (VBI) em frangos de corte no estado do Ceará. Quarenta aves de cada linhagem, colocadas em boxes isolados e não vacinadas, foram usadas como controle. As aves vacinadas contra VBI aos 15 e 25 dias foram submetidas a coletas de sangue periódicas para avaliação, pelo ELISA indireto, dos títulos de anticorpos para VBI. As aves com baixos títulos de anticorpos maternos (AcM) não apresentaram títulos significativos ao primeiro estímulo vacinal; para o segundo estímulo, o pico de resposta de GMT 1100 ocorreu aos 45 dias. As com elevado título de AcM não responderam significativamente à primeira vacinação e o pico de resposta ao segundo estímulo de GMT 500 ocorreu aos 45 dias. Não se verificou resposta de anticorpos para o primeiro estímulo vacinal, observando-se resposta tardia somente para o segundo. Os AcM podem ter interferido tanto no primeiro quanto no segundo estímulo, promovendo neutralização da primeira vacinação e resposta diferenciada para a segunda de acordo com o nível, elevado ou baixo, de AcM.

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The experiment was carried out to determine the antibody levels to infectious bronchitis virus (IBV) in 1120 broilers of two broiler flocks, both from the same parental flock and free from previous vaccination. Forty chicks of each line were alloted to the control group and the sera were tested by indirect ELISA. The vaccination program consisted on the administration of commercial vaccines against IBV at 10 and 25 days of age. Chicks with low levels of maternal antibodies (Mab) did not show significant titers to the first vaccinal stimulus. They presented a vaccinal response to the second vaccinal stimulus reaching the top around GMT 1100 at 45 days. Chicks with high Mab titers did not show significant titers to the primary and secondary vaccinal stimuli, reaching peak levels of GMT 500 at 45 days. No antibody response was detected after the primary vaccination at day 10. A delayed antibody response was detected after the secondary vaccination on day 25, indicating no previous priming. The maternal antibody titers can interfere on the response to the first and second vaccinal stimulus promoting the neutralization of the first vaccination and a different response to the second one, according to high or low maternal antibodies.(AU)

Utilizaram-se 1120 pintos de um dia de idade, de duas linhagens, nao vacinados, para determinar os níveis de anticorpos para o vírus da bronquite infecciosa (VBI) em frangos de corte no estado do Ceará. Quarenta aves de cada linhagem, colocadas em boxes isolados e nao vacinadas, foram usadas como controle. As aves vacinadas contra VBI aos 15 e 25 dias foram submetidas a coletas de sangue periódicas para avaliacao, pelo ELISA indireto, dos títulos de anticorpos para VBI. As aves com baixos títulos de anticorpos maternos (AcM) nao apresentaram títulos significativos ao primeiro estímulo vacinal; para o segundo estímulo, o pico de resposta de GMT 1100 ocorreu aos 45 dias. As com elevado título de AcM nao responderam significativamente à primeira vacinacao e o pico de resposta ao segundo estímulo de GMT 500 ocorreu aos 45 dias. Nao se verificou resposta de anticorpos para o primeiro estímulo vacinal, observando-se resposta tardia somente para o segundo. Os AcM podem ter interferido tanto no primeiro quanto no segundo estímulo, promovendo neutralizacao da primeira vacinacao e resposta diferenciada para a segunda de acordo com o nível, elevado ou baixo, de AcM.(AU)

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The purpose of this study was to evaluate clinically the effects of pre-treatments with a 35% hydroxyethyl metacrylate/5% glutaraldehyde dentine desensitizer (Gluma Desensitizer) and a 2% chlorexidine-based cavity disinfectant (Cav-Clean) on postoperative sensitivity. Three premolar teeth with no pain symptoms were selected from each one of 17 patients, totalling 51 teeth, for which Class II restoration using a composite was indicated. Each one of the three premolar teeth of the same patient was submitted to a different treatment. After acid etching, only a dental adhesive was applied to the first tooth, which served as the control. Gluma Desensitizer dentinal desensitizer was applied to the second premolar tooth prior to applying the dental adhesive. Cav-Clean cavity disinfectant was used on the third premolar tooth before applying the dental adhesive. Only one tooth was restored per session, and all premolar teeth were restored with a condensable composite, according to current restoration technique guidelines. Sensitivity to different stimuli (cold, heat, sweet and dental floss) was assessed on Day 1, Day 4 and Day 7 by questionnaire following restorative procedures. The results of this clinical research showed that, as far as the investigated stimuli and postoperative course are concerned, there was no statistically significant difference in the three different treatments (P>0.05). Postoperative sensitivity resulting from Class II restorations using composite resin cannot be completely eliminated with the prior use of a dentinal desensitizer or a cavity disinfectant. In day-to-day clinical treatment, postoperative sensitivity may possibly be related to the technique employed.

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Plantas da família Amaryllidaceae são caracterizadas pela presença de alcalóides isoquinolínicos. Desde o primeiro estudo envolvendo alcalóides desta família em 1877, um grande número destas plantas tem sido analisado quimicamente. Estes compostos apresentam uma ampla variedade de atividades biológicas, tais como: antiviral, citotóxica, antitumoral e analgésica. Neste trabalho, foram avaliados o perfil cromatográfico e a potencial atividade antiviral das frações diclorometano A e B, isoladas dos diferentes órgãos vegetais (bulbos, raízes, folhas e flores) de Hippeastrum glaucescens (Martius) Herbert, assim como dos alcalóides licorina, tazetina e pretazetina, previamente isolados desta planta. A extração dos alcalóides de H. glaucescens foi realizada por métodos clássicos, a partir de bulbos, raízes, folhas e flores fornecendo rendimentos totais em alcalóides de 0,53 por cento; 0,81 por cento; 0,29 por cento e 0,12 por cento, respectivamente. Empregando-se cromatografia em camada delgada, verificou-se que os bulbos e as raízes apresentam perfis cromatográficos semelhantes e que os alcalóides licorina, tazetina e pretazetina estão presentes em todas as partes testadas do vegetal. As frações diclorometano A e B, de cada órgão vegetal, e os alcalóides isolados (licorina, tazetina e pretazetina) não inibiram a replicação do herpesvírus simples humano tipo 1 (HSV-1) cepa KOS, quando avaliados através do método de inibição do efeito citopático viral.

Plants of Amaryllidaceae are characterized by isoquinoline alkaloids. Since the first study with Amaryllidaceae alkaloids in 1877, a large number of these plants have been chemically investigated. These compounds have shown a wide range of biological activities such as: antiviral, cytotoxic, antitumoral and analgesic. In this work, the dichloromethane (CH2Cl2) extracts obtained from different parts of the Hippeastrum glaucescens (Martius) Herbert (bulbs, roots, leaves and flowers) and the isolated alkaloids lycorine, tazettine and pretazettine were analyzed by a chromatographic method (TLC) and tested for antiviral activity. The extraction of alkaloids from bulbs, roots, leaves and flowers of H. glaucescens was performed by classic methods and yields 0.53 percent, 0.81 percent, 0.29 percent and 0.12 percent, respectively. Through TLC, bulbs and roots revealed similar chromatographic profiles and lycorine, tazettine and pretazettine were found in all the parts analyzed. The CH2Cl2-A and CH2Cl2-B extracts from each part of the plant and the isolated alkaloids (lycorine, tazettine and pretazettine) did not inhibit the HSV-1 strain KOS replication, when evaluated through the inhibition of cytophatic viral effect.

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A new alkaloid identified as 3beta,6beta-ditigloyloxynortropane as 3beta,7beta-ditigloyloxynortropane, 4-hydroxyhygrinic acid, methylecgonidine and tropacocaine have been isolated from the leaves of Erythroxylum argentinum. The new structure was established by means of spectroscopic techniques. Four other species E. deciduum, E. microphyllum, E. pelleterianum and E. cuneifolium collected in the state of Rio Grande do Sul were screened for methylecgonidine and tropacocaine by CG/MS. Two of these plants contain tropacocaine and two contain methylecgonidine. GC/MS analysis of all 5 species for cocaine proved fruitless. The chemotaxonomic significance of these results is discussed.

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Intravenous leiomyomatosis of the uterus is a rare neoplasm characterized by nodular masses of benign smooth muscles with intraluminal growth to the inferior vena cava and, in some cases, to the heart. It may cause abdominal and cardiovascular symptoms and is a serious risk of death when it reaches the tricuspid valve. Surgery is the best treatment and must be applied as soon as possible using cardiopulmonary bypass. The authors report a new case that had cardiac involvement and was successfully resected. The symptoms, imaging diagnosis, pathological and histopathological findings, tumors that mismatched the intravenous leiomyomatosis (IVL), and the use of circulatory arrest and deep hypothermia are discussed. A review of the literature is included.

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