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11.
Marangoni F Colombo C Martiello A Negri E Galli C 《Prostaglandins, leukotrienes, and essential fatty acids》2007,76(2):87-92
Limited data are available on the fatty acid (FA) composition of circulating lipids and the associations with diet, physiological and pathological conditions, due to the complexity and costs of the analytical process. The aim of our study was to evaluate the FA composition in 108 healthy subjects and to correlate the data with gender, pregnancy, dietary habits, lifestyle, and short-term controlled intake of n-3 FA, using an innovative analytical approach for the collection and processing of blood samples. Ten subjects were also supplemented with n-3 polyunsaturated FA as smoked salmon or capsules for 3 weeks. The resulting blood FA composition was affected by gender, pregnancy, diet and smoking. The data indicate that this new analytical methodology is suitable for assessing associations between circulating FA and various parameters in large population groups, and is applicable to epidemiological studies and in the assessment of the effects of controlled FA supplementation in clinical studies. 相似文献
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Patricia de Souza Bonfim-Mendon?a Bianca Altr?o Ratti Janine da Silva Ribeiro Godoy Melyssa Negri Nayara Cristina Alves de Lima Adriana Fiorini Elaine Hatanaka Marcia Edilaine Lopes Consolaro Sueli de Oliveira Silva Terezinha Inez Estivalet Svidzinski 《PloS one》2014,9(9)
Vulvovaginal candidiasis (VVC) is among the most prevalent vaginal diseases. Candida albicans is still the most prevalent species associated with this pathology, however, the prevalence of other Candida species, such as C. glabrata, is increasing. The pathogenesis of these infections has been intensely studied, nevertheless, no consensus has been reached on the pathogenicity of VVC. In addition, inappropriate treatment or the presence of resistant strains can lead to RVVC (vulvovaginal candidiasis recurrent). Immunomodulation therapy studies have become increasingly promising, including with the β-glucans. Thus, in the present study, we evaluated microbicidal activity, phagocytosis, intracellular oxidant species production, oxygen consumption, myeloperoxidase (MPO) activity, and the release of tumor necrosis factor α (TNF-α), interleukin-8 (IL-8), IL-1β, and IL-1Ra in neutrophils previously treated or not with β-glucan. In all of the assays, human neutrophils were challenged with C. albicans and C. glabrata isolated from vulvovaginal candidiasis. β-glucan significantly increased oxidant species production, suggesting that β-glucan may be an efficient immunomodulator that triggers an increase in the microbicidal response of neutrophils for both of the species isolated from vulvovaginal candidiasis. The effects of β-glucan appeared to be mainly related to the activation of reactive oxygen species and modulation of cytokine release. 相似文献
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P. Bruzzi E. Negri C. La Vecchia A. Decarli D. Palli F. Parazzini M. R. Del Turco 《BMJ (Clinical research ed.)》1988,297(6656):1096-1098
To determine whether there is a short term increase in the risk of breast cancer after a full term birth data from two hospital based, case-control studies in Italy were pooled. Analysis was restricted to women aged under 50 with two or more children (573 women with cancer and 570 controls). A relative risk for breast cancer of 2.66 was seen in women who had given birth during the three years preceding the interview compared with women whose last birth had occurred 10 or more years before, after adjustment for age, age at first birth, and parity. The relative risk slowly decreased for women who had last given birth three to 10 years before. Multivariate analyses confirmed the protective effect of an early age at first birth and the age dependent effect of parity on the risk of breast cancer--that is, a direct relation below age 40 and an inverse one in older women. These data provide epidemiological evidence that a full term birth is followed by a transient increase in the risk of breast cancer, which for some time contrasts with and overcomes the long term protection of pregnancy at an early age. They therefore confirm predictions from animal studies and theoretical models that pregnancy prevents the early stages of breast carcinogenesis but promotes the late stages of the process. 相似文献
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Over the last two decades, the importance of conserving genetic resources has received increasing attention. In this context
the role of home gardens as repositories of biological diversity has been acknowledged but still a comprehensive, interdisciplinary
investigation of their agro-biodiversity is lacking. Home gardens, whether found in rural or urban areas, are characterized
by a structural complexity and multifunctionality which enables the provision of different benefits to ecosystems and people.
Studies carried out in various countries demonstrate that high levels of inter- and intra-specific plant genetic diversity,
especially in terms of traditional crop varieties and landraces, are preserved in home gardens. Families engage in food production
for subsistence or small-scale marketing and the variety of crops and wild plants provides nutritional benefits. At the same
time, home gardens are important social and cultural spaces where knowledge related to agricultural practices is transmitted
and through which households may improve their income and livelihoods. The present article summarizes available literature
on the biological and cultural significance of agro-biodiversity in home gardens. It discusses future constraints and opportunities
in home garden research, in the prospect of defining and promoting their role in conservation of agricultural biodiversity
and cultural heritage. 相似文献
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Analysis of grape berry cell wall proteome: a comparative evaluation of extraction methods 总被引:1,自引:0,他引:1
Negri AS Prinsi B Scienza A Morgutti S Cocucci M Espen L 《Journal of plant physiology》2008,165(13):1379-1389
Different methods were tested for the extraction of proteins from the cell wall-enriched fraction (CWEf) obtained from a sample formed by skin and seeds of ripe berries of Vitis vinifera L. cv. Cabernet Sauvignon. The CWEf was isolated using a disruptive approach that involves tissue homogenization and precipitation by centrifugation. To extract proteins, the CWEf was treated with CaCl(2) and LiCl in two successive steps or, alternatively, with phenol. The efficiency of the protocols was evaluated by measuring protein yield and by analyzing two-dimensional gel electrophoresis (2-DE) gels for the highest detectable spot number and the greatest spot resolution. The phenol method was also adopted for the extraction of proteins from the cytosolic fraction (CYf). The comparison of 2-DE reference maps of protein extracts from CWEf and CYf indicated the presence of both common traits and unique characteristics. To survey this aspect some spots detected in both fractions or present in only one fraction were analyzed by liquid chromatography electrospray ionization tandem mass spectrometry (LC-ESI-MS/MS). Of the 47 spots identified, some were found to be cell wall proteins, while others were proteins not traditionally considered as localized in the apoplastic space. The data presented here provide initial information regarding the apoplastic proteome of grape berry tissues, but also raise the issue of the technical problems that characterize the isolation of cell wall proteins from these very hardy tissues. 相似文献