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Shade and sapling size influence restoration of Araucaria angustifolia

Journal of Forestry Research 2021年第5期32卷 1833-1841页

作者： Simone Aparecida Zolet Sasso JoséAbramo Marchese Amanda Pacheco Cardoso Moura Bruna Valéria Gil anelise tessari perboni Joel Donazzolo Fabrícia Lorrane Rodrigues Oliveira Bruno Francisco Sant’Anna-Santos Angela Rohr Moeses Andrigo Danner Agronomy Department Universidade Tecnológica Federal do Paraná(UTFPR)Campus Pato BrancoVia do Conhecimentokm 01Pato BrancoParaná85503-390Brazil UTFPR Campus Dois VizinhosEstrada para Boa Esperançakm 04Dois VizinhosParaná85660-000Brazil Biological Sciences Department Universidade Federal do Paraná(UFPR)Avenida Coronel Francisco H.dos Santos100CuritibaParaná81531-980Brazil

Toward improving reforestation of Brazilian pine(Araucaria angustifolia),two contrasting sapling sizes in either full sun or in the shade of a mixed plantation and the effect of opening the canopy were evaluated for survival,growth,gas exchange,photosynthetic pigments,and leaf anatomy 18 months after being *** 23 months after planting,a partial opening was made in the canopy in the mixed plantation,then the saplings were evaluated again after 2 months for the same morphophysiological *** 18 months,saplings planted in the full sun had higher survival,growth,pigments,and photosynthesis compared to the shaded *** saplings had higher survival and growth compared to the small *** leaves were thinner and little differentiation of palisade parenchyma and *** opening of the canopy,photo synthetically active radiation was 10 times higher,and the saplings quickly grew in height due to increased ***,although the species can tolerate shade,growth in the shade is *** recommend that for reforestation purposes of Brazilian pine,large saplings should be selected and planted in the open for better development.

关键词： Brazilian pine Luminosity Gas exchanges Photosynthetic pigments Leaf anatomy

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Growth hormone releasing peptide 2 reverses anorexia associated with chemotherapy with 5-fluoruracil in colon cancer cell-bearing mice

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World Journal of Gastroenterology 2008年第41期14卷 6303-6305页

作者： Simona perboni Cyril Bowers Shinya Kojima Akihiro Asakawa Akio Inui Unità Operativa Day Hospital Area Medica Azienda Ospedaliera di Desenzano sul Garda Ospedale di Manerbio Tulane University Health Science Center New Orleans Department of Psychosomatic Internal Medicine Kagoshima University Graduate School of Medical and Dental Sciences

The cancer-associated anorexia-cachexia syndrome is observed in 80% of patients with advanced-stage cancer, and is one of the major obstacles in chemo- therapy. Ghrelin is a orexigenic hormone that has been proposed to prevent anorexia. Aim of the study was to determine whether the addition of the ghrelin agonist growth hormone releasing peptide 2 (GHRP-2) to cytotoxic therapy with 5-fluoruracil (5-FU) prevents the anorexia associated with chemotherapy in cancer cachectic mice. Thirty-three BALB/c female tumourbearing mice were randomized to receive a solution containing: (a) placebo; (b) GHRP-2; (c) 5-FU; or (d) 5-FU + GHRP-2. Ten BALB/c no tumour-bearing mice received placebo solution. Food intake and survival were checked. Six hours after the drug injection the cumulative food intake was signifi cantly increased in mice treated with the combination of 5-FU + GHRP-2 versus the 5-FU alone (P = 0.0096). On day 3, the cumulative food intake of mice treated with GHRP-2,5-FU and 5-FU + GHRP-2 signifi cantly increased com- pared with naive and vehicle groups (P = 0.0007, P = 0.0038 and P = 0.0166, respectively). The median survival time was longer in 5-FU + GHRP-2 treated mice than in those with 5-FU, although it was not signifi cant (18 d versus 15.5 d, P = 0.7). For the fi rst time, we demonstrated that the addition of GHRP-2 to cytotoxic therapy with 5-FU improved appetite in tumour-bearing mice with anorexia/cachexia syndrome in early stage. These data suggest that GHRP-2 may improve the effi cacy of therapy and the quality of life of cancer patients thank to the amelioration of their nutritional state.

关键词： GHS Ghrelin Cancer anorexia-cachexia syndrome Food intake Chemotherapy Colon cancer cell line Murine model

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