979 research outputs found
Influencia de la fertilización en el crecimiento de radicchio "Rosso di Chioggia" cultivado en dos ambientes diferentes
Este trabajo evalúa la influencia de la
fertilización en radicchio tipo "Rosso de Chioggia"
(precocidad media) sobre algunos Ãndices de
crecimiento. Se realizaron ensayos durante dos
campañas en Rovigo (Italia) y una en Mendoza
(Argentina), aplicándose dosis crecientes de
NPK, identificadas como N0P0K0, N1P1K1,
N2P2K2, en Mendoza y en Rovigo, además,
N3P2K2. Durante el cultivo se calcularon
Ãndices de crecimiento como: relative growth
rate (RGR), net assimilation rate (NAR), leaf
area ratio (LAR), specific leaf area (SLA), leaf
weigh ratio (LWR), crop growth ratio (CGR), leaf
area index (LAI) and leaf area duration (LAD).
En Mendoza, el CGR estuvo fuertemente
influenciado por NAR desde el trasplante hasta
alcanzar 776 grados dÃas (GDD); desde 1052 a
1653 GDD el CGR fue afectado por el LAI el cual
aumentó marcadamente debido a las condiciones
ambientales favorables. Entre los 1052 y 1653
GDD el incremento del LAI determinó una
reducción en la eficiencia fotosintética. En Rovigo,
la tendencia de los Ãndices fue disÃmil en los
dos años, encontrándose respuestas diferentes
en LAR y en SLA. En el segundo año, el CGR
siempre arrojó valores más altos, mientras que
NAR no difirió en ninguno de los años. En la
segunda mitad del ciclo, CGR estuvo fuertemente
asociado a una menor eficiencia fotosintética,
debido a la formación de la cabeza. Valores
elevados de LAI indicaron una extensión del ciclo,
retrasando la formación de la cabeza. Las plantas
alcanzaron la madurez comercial con LWR entre
0,35 - 0,40 g g-1. En ambos ambientes, no se
observó claramente el efecto de la fertilización
sobre los Ãndices; si bien las dosis más altas
mostraron mayor actividad de crecimiento en las
etapas tempranas.This study evaluated the influence
of fertilization on some growth indexes in
radicchio "Rosso di Chioggia". The trial was
conducted in Rovigo (Italy) for two years and in
Mendoza (Argentina) for one year. Increasing
doses of macronutrients were considered,
identified as N0P0K0, N1P1K1, N2P2K2
and, only in Rovigo, N3P2K2. Some indexes
related to growth analysis: relative growth rate
(RGR), net assimilation rate (NAR), leaf area
ratio (LAR), specific leaf area (SLA), leaf weigh
ratio (LWR), crop growth ratio (CGR), leaf
area index (LAI) and leaf area duration (LAD)
were calculated during the growing cycle. At
Mendoza CGR was strongly influenced by
NAR from transplant until 776 growth degree
days (GDD). After that moment, CGR was
affected by LAI that increased markedly due
to favourable environmental conditions. From
1052 to 1653 GDD the high increase of LAI
determined a reduction in photosynthetic
efficiency. At Rovigo the trends in index values
showed differences between the two years
considered, especially in LAR and SLA. In the
second year CGR had always higher values;
mainly due to higher LAI values, since NAR did
not differ significantly during the years. In the
second half of the growing cycle, CGR was
instead strongly linked to a contraction of
photosynthetic effectiveness, due to head
formation. High LAI values showed a growing
cycle extension to the detriment of early head
formation. It was also observed that when
LWR is around 0.35 - 0.40 g g-1, the plant
reaches marketable maturation and is ready
to be harvested. In both environments, no
clear effects of fertilization were observed
on the growth indexes. In any case highly
fertilized plants showed higher growing
activity especially at the beginning of the
growing cycle.Fil: Filippini, MarÃa Flavia.
Universidad Nacional de Cuyo. Facultad de Ciencias Agrarias. Departamento de IngenierÃa AgrÃcolaFil: Nicoletto, Carlo.
Università degli Studi di Padova (Italia). Dipartimento Territorio e Sistemi Agro-ForestaliFil: Sambo, Paolo.
Università degli Studi di Padova (Italia). Dipartimento Territorio e Sistemi Agro-ForestaliFil: Cavagnaro, Juan Bruno.
Universidad Nacional de Cuyo. Facultad de Ciencias Agrarias. Departamento de Ciencias BiológicasFil: Pimpini, Ferdinando.
Università degli Studi di Padova (Italia). Dipartimento Territorio e Sistemi Agro-Forestal
Contrast-Enhanced Ultrasound: a Simple and Effective Tool in Defining a Rapid Diagnostic Work-up for Small Nodules Detected in Cirrhotic Patients during Surveillance
Disappearance of portal blood flow and arterial vascularization is the hallmark of hepatocarcinogenesis. The capability of a dynamic imaging modality detecting arterial hypervascularization of small nodules is crucial to promote a rapid diagnostic and therapeutic work-up improving survival. We aimed to evaluate the capability of CEUS to detect arterial vascularization of ≤ 2 cm HCC nodules arising during surveillance so as to shorten the diagnostic and therapeutic work-up
Microwave Ablation in Intermediate Hepatocellular Carcinoma in Cirrhosis: An Italian Multicenter Prospective Study
Background and Aims:
To report long-term results in treatment of intermediate hepatocellular carcinoma (HCC) in cirrhotics using new high-powered microwaves (MWS) ablation alone.
Methods:
This multicenter study included 215 cirrhotics (age range: 67-84 years; 137 males; 149 Child A, 66 Child B) who underwent percutaneous ultrasound-guided high-powered MWS ablation instead of transarterial chemoembolization. Among the patient population, 109 had a single nodule (Ø 5.3-8 cm) [group A], 70 had 2 nodules (Ø 3-6 cm) [group B] and 36 had 3-5 nodules (Ø 1.5-6.8 cm) [group C]. MWS ablation efficacy was evaluated using enhanced-computed tomography and/or magnetic resonance imaging. Primary end-point was 5-year cumulative overall survival (OS).
Results:
On enhanced-computed tomography and/or magnetic resonance imaging, complete ablation rates were 100% for 1.5-3.5 cm nodules. In nodules >3.5-5 cm, it was 89% for the first ablation and 100% for the second. For lesions >5-8 cm, ablation was up to 92%. Overall, 1-, 3- and 5-year survival rates were 89, 60, and 21%, respectively. The cumulative OS rate of group A was 89%, 66% and 34% at 1, 3 and 5 years. The cumulative OS rate of group B was 88%, 60% and 11% at 1, 3 and 5 years. The cumulative OS rate of group C was 86%, 55% and 0%. The 5-year survival rate was significantly different among the groups (p <0.001). One patient died from rupture of HCC. Upon multivariate analysis, preablation total bilirubin >1.5 mg/dL was an independent factor for predicting lower survival.
Conclusions:
Percutaneous MWS ablation of intermediate HCC is safe and effective in inducing large volume of necrosis in intermediate HCC nodules, providing long-term survival rates similar to transarterial chemoembolization. Preablation total bilirubin >1.5 mg/dL as expression of liver function reserve is the main factor predicting a worse outcome
Results of a prospective observational study of autologous peripheral blood mononuclear cell therapy for no-option critical limb-threatening ischemia and severe diabetic foot ulcers
Cell therapy with autologous peripheral blood mononuclear cells (PB-MNCs) may help restore limb perfusion in patients with diabetes mellitus and critical limb-threatening ischemia (CLTI) deemed not eligible for revascularization procedures and consequently at risk for major amputation (no-option). Fundamental is to establish its clinical value and to identify candidates with a greater benefit over time. Assessing the frequency of PB circulating angiogenic cells and extracellular vesicles (EVs) may help in guiding candidate selection
The metamorphosis of SN1998bw
We present and discuss the photometric and spectroscopic evolution of the
peculiar SN1998bw, associated with GRB980425, through an analysis of optical
and near IR data collected at ESO-La Silla. The spectroscopic data, spanning
the period from day -9 to day +376 (relative to B maximum), have shown that
this SN was unprecedented, although somewhat similar to SN1997ef. Maximum
expansion velocities as high as 3x10^4 km/s to some extent mask its resemblance
to other Type Ic SNe. At intermediate phases, between photospheric and fully
nebular, the expansion velocities (~10^4 km/s) remained exceptionally high
compared to those of other recorded core-collapse SNe at a similar phase. The
mild linear polarization detected at early epochs suggests the presence of
asymmetry in the emitting material. The degree of asymmetry, however, cannot be
decoded from these measurements alone. The HeI 1.083 mu and 2.058 mu lines are
identified and He is suggested to lie in an outer region of the envelope. The
temporal behavior of the fluxes and profiles of emission lines of MgI]4571A,
[OI]6300,6364A and a feature ascribed to Fe are traced to stimulate future
modeling work.Comment: 32 pages, 19 figures; ps file including figures at
http://www.eso.org/~fpatat/sn98b
Antidepressant activity of fingolimod in mice
Recent findings indicate that fingolimod, the first oral drug approved for the treatment of multiple sclerosis (MS), acts as a direct inhibitor of histone deacetylases (HDACs) and enhances the production of brain-derived neurotrophic factor (BDNF) in the CNS. Both mechanisms are relevant to the pathophysiology and treatment of major depression. We examined the antidepressant activity of fingolimod in mice subjected to chronic unpredictable stress (CUS), a model of reactive depression endowed with face and pharmacological validity. Chronic treatment with fingolimod (3\ua0mg\ua0kg(-1), i.p., once a day for 4\ua0weeks) reduced the immobility time in the forced swim test (FST) in a large proportion of CUS mice. This treatment also caused anxiogenic-like effects in the social interaction test without affecting anxiety-like behavior in the elevated plus maze or spatial learning in the water maze. CUS mice showed reduced BDNF levels and enhanced HDAC2 levels in the hippocampus. These changes were reversed by fingolimod exclusively in mice that showed a behavioral response to the drug in the FST. Fingolimod treatment also enhanced H3 histone K14-acetylation and adult neurogenesis in the hippocampus of CUS mice. Fingolimod did not affect most of the parameters we have tested in unstressed control mice. The antidepressant-like activity of fingolimod was confirmed in mice chronically treated with corticosterone. These findings show for the first time that fingolimod exerts antidepressant-like effect acting in a "disease-dependent" manner, and raise the interesting possibility that the drug could relieve depressive symptoms in MS patients independently of its disease-modifying effect on MS
Antidepressant activity of fingolimod in mice
Recent findings indicate that fingolimod, the first oral drug approved for the treatment of multiple sclerosis (MS), acts as a direct inhibitor of histone deacetylases (HDACs) and enhances the production of brain-derived neurotrophic factor (BDNF) in the CNS. Both mechanisms are relevant to the pathophysiology and treatment of major depression. We examined the antidepressant activity of fingolimod in mice subjected to chronic unpredictable stress (CUS), a model of reactive depression endowed with face and pharmacological validity. Chronic treatment with fingolimod (3\ua0mg\ua0kg(-1), i.p., once a day for 4\ua0weeks) reduced the immobility time in the forced swim test (FST) in a large proportion of CUS mice. This treatment also caused anxiogenic-like effects in the social interaction test without affecting anxiety-like behavior in the elevated plus maze or spatial learning in the water maze. CUS mice showed reduced BDNF levels and enhanced HDAC2 levels in the hippocampus. These changes were reversed by fingolimod exclusively in mice that showed a behavioral response to the drug in the FST. Fingolimod treatment also enhanced H3 histone K14-acetylation and adult neurogenesis in the hippocampus of CUS mice. Fingolimod did not affect most of the parameters we have tested in unstressed control mice. The antidepressant-like activity of fingolimod was confirmed in mice chronically treated with corticosterone. These findings show for the first time that fingolimod exerts antidepressant-like effect acting in a "disease-dependent" manner, and raise the interesting possibility that the drug could relieve depressive symptoms in MS patients independently of its disease-modifying effect on MS
Civiltà della Campania. Anno II, n. 3 (agosto-ottobre 1975)
A. II, n.3 (agosto-ottobre 1975): Il messaggio dell’Assessore Emilio de Feo, P. 3 ; M. Parrilli, Continuità nel turismo regionale, P. 3 ; Napoli nei secoli, P. 5 ; G. Galasso, Tumulti ed elezioni del ’600, P. 6 ; N. Cilento, Nella città medioevale, P. 18 ; B. Gatta, Capri tra Napoleone e Murat, P. 24 ; R. Causa, Gioacchino Toma a Napoli, P. 30 ; A. Assante, Napoli e il suo porto, P. 34 ; G. Grimaldi, Messaggio di fede dell’Anno Santo, P. 40 ; R. Vlad, Musica all’aperto, P. 50 ; M. Stefanile, Viaggio nella storia di Amalfi, P. 52 ; D. Rea, Mappa minore, P. 60 ; M. Prisco , Incontro con la Badia, P. 68 ; P. Amos e A. Gambardella, Il villaggio di Albori, P. 74 ; R. Virtuoso, Giovanni Cuomo ritorna tra i giovani, P. 76 ; V. Panebianco, Il turismo venuto dalla storia, P. 80 ; A.P. Carbone, Le grotte di Pertosa, P. 84 ; F. de Ciuceis, Il mare di Caserta, P. 88 ; E. Tirone, Riti settennali a Guardia Sanframondi, P. 92 ; F. Calabro, Turismo e cultura a Capri, P. 98 ; F. de Ciuceis, Settembre al Borgo, P. 102 ; I. Santoro, Teggiano citta museo, P. 104 ; Notiziario, P. 108
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The SIFIPAC/WSES/SICG/SIMEU guidelines for diagnosis and treatment of acute appendicitis in the elderly (2019 edition).
The epidemiology and the outcomes of acute appendicitis in elderly patients are very different from the younger population. Elderly patients with acute appendicitis showed higher mortality, higher perforation rate, lower diagnostic accuracy, longer delay from symptoms onset and admission, higher postoperative complication rate and higher risk of colonic and appendiceal cancer. The aim of the present work was to investigate age-related factors that could influence a different approach, compared to the 2016 WSES Jerusalem guidelines on general population, in terms of diagnosis and management of elderly patient with acute appendicitis. During the XXIX National Congress of the Italian Society of Surgical Pathophysiology (SIFIPAC) held in Cesena (Italy) in May 2019, in collaboration with the Italian Society of Geriatric Surgery (SICG), the World Society of Emergency Surgery (WSES) and the Italian Society of Emergency Medicine (SIMEU), a panel of experts participated to a Consensus Conference where eight panelists presented a number of statements, which were developed for each of the four topics about diagnosis and management of acute appendicitis in elderly patients, formulated according to the GRADE system. The statements were then voted, eventually modified and finally approved by the participants to the Consensus Conference. The current paper is reporting the definitive guidelines statements on each of the following topics: diagnosis, non-operative management, operative management and antibiotic therapy
The SIFIPAC/WSES/SICG/SIMEU guidelines for diagnosis and treatment of acute appendicitis in the elderly (2019 edition).
The epidemiology and the outcomes of acute appendicitis in elderly patients are very different from the younger population. Elderly patients with acute appendicitis showed higher mortality, higher perforation rate, lower diagnostic accuracy, longer delay from symptoms onset and admission, higher postoperative complication rate and higher risk of colonic and appendiceal cancer. The aim of the present work was to investigate age-related factors that could influence a different approach, compared to the 2016 WSES Jerusalem guidelines on general population, in terms of diagnosis and management of elderly patient with acute appendicitis. During the XXIX National Congress of the Italian Society of Surgical Pathophysiology (SIFIPAC) held in Cesena (Italy) in May 2019, in collaboration with the Italian Society of Geriatric Surgery (SICG), the World Society of Emergency Surgery (WSES) and the Italian Society of Emergency Medicine (SIMEU), a panel of experts participated to a Consensus Conference where eight panelists presented a number of statements, which were developed for each of the four topics about diagnosis and management of acute appendicitis in elderly patients, formulated according to the GRADE system. The statements were then voted, eventually modified and finally approved by the participants to the Consensus Conference. The current paper is reporting the definitive guidelines statements on each of the following topics: diagnosis, non-operative management, operative management and antibiotic therapy
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