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  • 1
    Language: English
    In: Biochemical Systematics and Ecology, 2015, Vol.62, p.82(9)
    Description: To link to full-text access for this article, visit this link: http://dx.doi.org/10.1016/j.bse.2015.07.041 Byline: Alessandra Bertoli, Maria Cecilia Loi, Cecilia Noccioli, Lucia Maxia, Anna-Camilla Moonen, Luisa Pistelli Abstract: The aroma fingerprints of seven endemic Sardinian populations of Genista species (Genista bocchierii, Genista arbusensis, Genista cadasonensis, Genista corsica, Genista morisii, Genista pichisermolliana, Genista sulcitana) were defined for the first time in order to investigate the relationship between their chemotaxonomic classification and discriminating volatiles. It is the first time that the inter-species compositional variations of non-terpenoidic constituents and target volatiles such as linalool, limonene, 2,6-nonadienal, 2-pentylfuran, (E)-2-(2-pentenyl)-furan, [sz]-caryophyllene and caryophyllene oxide were related by Principal Components Analysis to the actual chemotaxonomic classification of the selected Sardinian Genista species. Although they are not considered marketable aromatic plants, these original results have shown the potential role of volatiles not only as new further important chemotaxonomic markers of Genista species, but also as potential ecological factors in the chemodiversity of some endemic Mediterranean Genista or, more in general, in vegetation changes and reforestation processes. Author Affiliation: (a) Department of Pharmacy, University of Pisa, Via Bonanno 33, 56126 Pisa, Italy (b) Department of Environmental and Life Science, Section Botany and Botanical Garden, University of Cagliari, Viale S.Ignazio, 13 I, 09123 Cagliari, Italy (c) Institute of Life Sciences - Scuola Superiore Sant'Anna, Via Santa Cecilia 3, 56127 Pisa, Italy Article History: Received 30 April 2015; Revised 30 July 2015; Accepted 31 July 2015
    Keywords: Reforestation ; Animal Behavior
    ISSN: 0305-1978
    Source: Cengage Learning, Inc.
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  • 2
    Language: English
    In: Biochemical Systematics and Ecology, October 2015, Vol.62, pp.82-90
    Description: The aroma fingerprints of seven endemic Sardinian populations of species ( , , , , , , ) were defined for the first time in order to investigate the relationship between their chemotaxonomic classification and discriminating volatiles. It is the first time that the inter-species compositional variations of non-terpenoidic constituents and target volatiles such as linalool, limonene, 2,6-nonadienal, 2-pentylfuran, ( )-2-(2-pentenyl)-furan, -caryophyllene and caryophyllene oxide were related by Principal Components Analysis to the actual chemotaxonomic classification of the selected Sardinian species. Although they are not considered marketable aromatic plants, these original results have shown the potential role of volatiles not only as new further important chemotaxonomic markers of species, but also as potential ecological factors in the chemodiversity of some endemic Mediterranean or, more in general, in vegetation changes and reforestation processes.
    Keywords: Essential Oil ; Headspace ; Gc-MS ; Genista ; Leguminosae ; PCA ; Chemistry ; Ecology
    ISSN: 0305-1978
    E-ISSN: 1873-2925
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  • 3
    Language: English
    In: Apoptosis, 2008, Vol.13(1), pp.119-131
    Description: Myrtucommulone (MC) is a unique, nonprenylated acylphloroglucinol contained in the leaves of myrtle ( Myrtus communis ). Here, we addressed the potential of MC to induce apoptosis of cancer cells. MC potently induced cell death of different cancer cell lines (EC 50 3–8 μM) with characteristics of apoptosis, visualized by the activation of caspase-3, -8 and -9, cleavage of poly(ADP-ribose)polymerase (PARP), release of nucleosomes into the cytosol, and DNA fragmentation. MC was much less cytotoxic for non-transformed human peripheral blood mononuclear cells (PBMC) or foreskin fibroblasts (EC 50 cell death = 20–50 μM), and MC up to 30 μM hardly caused processing of PARP, caspase-3, -8 and -9 in human PBMC. MC-induced apoptosis was mediated by the intrinsic rather than the extrinsic death pathway. Thus, MC caused loss of the mitochondrial membrane potential in MM6 cells and evoked release of cytochrome c from mitochondria. Interestingly, Jurkat cells deficient in caspase-9 were resistant to MC-induced cell death and no processing of PARP or caspase-8 was evident. In cell lines deficient in either CD95 (Fas, APO-1) signalling, FADD or caspase-8, MC was still able to potently induce cell death and PARP cleavage. Conclusively, MC induces apoptosis in cancer cell lines, with marginal cytotoxicity for non-transformed cells, via the mitochondrial cytochrome c/Apaf-1/caspase-9 pathway.
    Keywords: Cancer ; Apoptosis ; Mitochondria ; Caspase ; Myrtucommulone
    ISSN: 1360-8185
    E-ISSN: 1573-675X
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  • 4
    Language: English
    In: Journal of Natural Products, 2006, Vol.69(7), pp.1101-1104
    Description: Investigation of an acetone extract from asafetida afforded two drimane sesquiterpene dienones (fetidones A and B, 1a,b) and several known sesquiterpene coumarin ethers, one of which (8-acetoxy-5-hydroxyumbelliprenin, 2a) showed potent and specific NF-kappa B-inhibiting properties. This, coupled to a...
    Keywords: Naturvetenskap ; Kemi ; Organisk Kemi ; Natural Sciences ; Chemical Sciences ; Organic Chemistry
    ISSN: 0163-3864
    E-ISSN: 15206025
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  • 5
    Language: English
    In: Journal of natural products, February 2006, Vol.69(2), pp.251-4
    Description: An investigation of the polar glycosidic fraction from the leaves of myrtle afforded four galloylated nonprenylated phloroglucinol glucosides (3a-d) related to the endoperoxide hormone G3 (4) in terms of structure and biogenesis. Despite their close similarity, significant antibacterial activity was shown only by one of these compounds (3b, gallomyrtucommulone B), while the G3 hormone (4) was inactive.
    Keywords: Phloroglucinol ; Glucosides -- Isolation & Purification ; Myrtus -- Chemistry
    ISSN: 0163-3864
    E-ISSN: 15206025
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  • 6
    In: Nephrology Dialysis Transplantation, 2015, Vol. 30(7), pp.1193-1202
    Description: BACKGROUND: Pregnancy on dialysis is increasingly being reported. This study evaluates the behavioural profile of the children of mothers on dialysis and the parental stress their mothers undergo when compared with a group of mothers affected by a different chronic disease (microcythaemia) and a group of healthy control mothers.METHODS: Between 2000 and 2012, 23 on-dialysis mothers gave birth to 24 live-born children in Italy (23 pregnancies, 1 twin pregnancy, one of the twins deceased soon after delivery); of these, 16 mothers and 1 father (whose wife died before the inquiry) were included in the study (1 mother had died and the father was unavailable; 2 were not asked to participate because their children had died and 3 were unavailable; children: median age: 8.5, min-max: 2-13 years). Twenty-three mothers affected by transfusion-dependent microcythaemia or drepanocitosis (31 pregnancies, 32 children) and 35 healthy mothers (35 pregnancies, 35 children; median age of the children: 7, min-max: 1-13 years) were recruited as controls. All filled in the validated questionnaires: 'Child Behaviour Checklist' (CBCL) and the 'Parental Stress Index-Short Form' (PSI-SF).RESULTS: The results of the CBCL questionnaire were similar for mothers on dialysis and healthy controls except for pervasive developmental problems, which were significantly higher in the dialysis group, while microcythaemia mothers reported higher emotional and behavioural problems in their children in 8 CBCL sub-scales. Two/16 children in the dialysis and 3/32 in the microcythaemia group had pathological profiles, as assessed by T-scores (p: ns). PSI-SF indicated a normal degree of parental stress in microcythaemia subjects and healthy controls, while mothers on dialysis declared significantly lower stress, suggesting a defensive response in order to minimize problems, stress or negativity in their relationship with their child.CONCLUSIONS: According to the present analysis, the emotional and behavioural outcome is normal in most of the children from on-dialysis mothers. A 'positive defence' in the dialysis mothers should be kept in mind when tailoring psychological support for this medical miracle.
    Keywords: Depression ; Dialysis ; Esrd ; Pregnancy ; Microcythaemia ; Stress
    ISSN: 0931-0509
    E-ISSN: 1460-2385
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  • 7
    Language: Italian
    In: Rivista della Societa Italiana di Scienza dell'Alimentazione, 1977, Vol.6(6), pp.461-466
    Description: 5 graphs; 17 ref. Summaries (En, It). ; v.461-466(6)
    Source: AGRIS (Food and Agriculture Organization of the United Nations)
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  • 8
    Language: Italian
    In: Rivista della Societa Italiana di Scienza dell'Alimentazione, 1977, pp.387-389
    Description: 15 ref. Summaries (En, It). ; v.387-389
    Source: AGRIS (Food and Agriculture Organization of the United Nations)
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