2,265 research outputs found
Análise descritiva da vitivinicultura do Rio Grande do Sul com base no cadastro vitÃcola de 1977 e em dados institucionais. II. MunicÃpio de Flores da Cunha.
bitstream/item/40366/1/cir02.pd
Análise descritiva da vitivinicultura do Rio Grande do Sul com base no cadastro vitÃcola de 1977 e em dados institucionais. III. MunicÃpio de Caxias do Sul.
bitstream/item/40367/1/cir03.pd
Como elaborar vinho de qualidade na pequena propriedade.
bitstream/item/60701/1/CNPUV-DOC.-12-94.pd
A Dynamic Objective Evaluation of Peripheral Arterial Disease by Near-Infrared Spectroscopy
AbstractObjectivesNear-Infrared Spectroscopy (NIRS), suitable for dynamic measurements, is not routinely used for peripheral arterial disease (PAD). We propose a dynamic NIRS-based measurement to quantify variations in muscle metabolism in PAD.MethodSixty-seven consecutive PAD patients (males=56, age 71.6±8.7 years) and 28 healthy subjects (males=12, age 30.4±11.9 years) were studied. An echo-colour Doppler (ECD) was performed and the ankle–brachial index (ABI) was calculated. Participants performed an incremental treadmill test with NIRS probes on the gastrocnemius. Variations in oxygenated (HbO2), deoxygenated (HHb), total (tHb=HbO2+HHb), and differential (dHb=HbO2−HHb) haemoglobin were recorded and quantified as area-under-curve (AUC) within the range 1.7–3.0kmh−1. Heart rate was recorded, and the number of beats in the same interval was calculated (dHr).ResultsO2HbAUC, HHbAUC and dHbAUC differed between diseased and non-diseased legs (P<0.0001) and exhibited different patterns related to PAD severity according to the ABI value. A compensatory heart rate increase was observed in PAD patients. Compared with the ECD positivity for occlusions/stenoses or multiple plaques, only the receiver-operating characteristic (ROC) analysis of dHbAUC (area=0.932, P<0.0001) showed a sensitivity/specificity of 87.6/93.4 for values ≤−197 (LR+LR−: 13.36/0.13).ConclusionThe dynamic NIRS-based test, quantifying muscle metabolic response according to presence and degree of PAD, allows the evaluation of patients with walking disabilities
Análise descritiva da vitivinicultura do Rio Grande do Sul com base no cadastro vitÃcola de 1977 e em dados institucionais. IV. MunicÃpio de Farroupilha.
bitstream/item/40371/1/cir04.pd
Análise descritiva da viticultura da Microrregião homogênea viticultora de Caxias do Sul.
bitstream/item/59959/1/CNPUV-CIR.-TEC.-9-82.pd
Predictors of HER2 gene amplification in immunohistochemistry score 2+ Early Breast Cancer according to 2018 ASCO/CAP guidelines: a single institution analysis.
Background: HER2 overexpression occurs in approximately
15-20% of invasive breast cancers (BC). From a
pathological point of view HER2 positivity is defined by
intense circumferential membrane complete staining in
more than 10% of tumour cells in immunohistochemistry
(IHC score 3+). When complete circumferential staining
is weak to moderate (IHC score 2+) double probe in situ
ibridation (ISH) is mandatory to define HER2 status. In
2018 ASCO/CAP guidelines were updated to provide
additional guidance in HER2 equivocal cases to allow a
greater discrimination between positive and negative
cases. Our aim is to find predictors of HER2 positivity
among IHC score 2+ early breast cancer specimens analysed
according to 2018 ASCO/CAP guidelines.
Patients and methods: 253 cases of early BC diagnosed
at Modena Cancer Center between November 2013 and
August 2017 were identified. Stage, ISH result, hormonal
receptor status (HR), proliferation index (MIB1), and histological
grade were captured; menopausal status was available too. All IHC score 2+ cases were reclassified
according to 2018 ASCO/CAP guidelines. The association
between pathological tumour features, clinical characteristics
and ISH positivity was assessed using Fisher test.
Results: Overall, 25.7% IHC score 2+ BC resulted HER2
amplified in double probe ISH. High tumour grade (G3 vs
G1-2) and MIB1 > 20% significantly predict HER2 ISH
amplification (p=0,0001). No correlation was found according
to HR, stage, or menopausal status. The majority (185;
98.4%) of HER2-ve BC were reclassified as group 5 (HER2/
CEP17 ratio <2 and HER2 copy number <4 signals/cell)
except for 3 specimens classified as group 4 (HER2/CEP17
RATIO <2 and HER2 copy number \ub34 but <6 signals/cell).
In HER2+ve group the majority (62; 95.3%) specimens
were group 1 (HER2/CEP17 RATIO >2 and HER2 copy
number =4 signals/cell), no specimen was group 2, and only
3 cases were classified as group 3 (HER2/CEP17 RATIO
<2 and HER2 copy number >6 signals/cell).
Conclusions: In this IHC score 2+ BC series, reclassification
according to 2018 ASCO/CAP guidelines identified
only 4.6% group 3 and 1.6% group 4 cases. The routinely
assessment of grading and proliferation index could help
to predict HER2 amplification in IHC score 2+ samples
even if it must not substitute ISH assay in determining eligibility
for HER2 targeted therapies
Clinical impact and prognostic role of KRAS/BRAF/PIK3CA mutations in stage I colorectal cancer
Stage I colorectal carcinoma has excellent prognosis, with 5-year survival rate up to 95%. The occurrence of lymphovascular invasion, tumor budding, high number of PDC, or lymph node micrometastases is associated with tumor progression. The aim of this study was to evaluate the mutational status of 62 stage I colorectal carcinomas (CRC) (taken from 37 patients surviving more than five years since the initial diagnosis and from 25 patients who died of disease) and to correlate it with histopathological features and the clinical outcome. Mutations of KRAS, NRAS, BRAF, and PIK3CA genes were analyzed through Myriapod Colon Status Kit, using the high-throughput genotyping platform Sequenom MassARRAY System. Mutations in those genes were found in 31 cases (50%) and mainly in those with poor prognosis. The most frequent mutations occurred at codons 12 and 13 of the KRAS gene (40% of cases). We found concomitant PIK3CA mutations in 5 cases (8%). The presence of PIK3CA mutations was mainly observed in tumors with poor prognosis and with unfavorable histopathological prognostic features. High PDC grade (P = 0 0112), the presence of tumor budding (P = 0 0334), LVI (P < 0 0001), KRAS mutations (P = 0 0228), PIK3CA mutations (P = 0 0214), multiple genetic mutations in KRAS and PIK3CA genes (P = 0 039), and nodal micrometastases (P < 0 0001) were significant prognostic variables for CSS. The presence of LVI was the only independent and statistically significant prognostic variable for CSS in our cohort of pTNM stage I CRCs. The analysis of KRAS/PIK3CA mutational status may be used to identify patients with stage I CRC at high risk of bad outcome and who may need additional treatments, including biological therapies
Is robot-assisted gait training intensity a determinant of functional recovery early after stroke? A pragmatic observational study of clinical care
Gait rehabilitation is a critical factor in functional recovery after a stroke. The aim of this pragmatic observational study was to identify the optimal dose and timing of robot-assisted gait training (RAGT) that can lead to a favourable outcome in a sample of subacute stroke survivors. Subacute patients with stroke who underwent a RAGT within a multidisciplinary rehabilitation program were enrolled. A set of clinical (i.e. age, type of stroke and time since stroke) and rehabilitation stay outcomes (length of stay and RAGT number of sessions) were recorded to evaluate their impact on functional outcome measures by functional independence measure (FIM) or functional ambulation category (FAC). We included 236 patients (62.73 ± 11.82 year old); 38.44% were females, and 59.32% were ischaemic stroke patients. Patients that received at least 14 RAGT sessions, had 15.83% more chance to be responders compared to those that receive less sessions (P = 0.006). Similarly, younger patients (≤60 years) were more prone to be responders (+15.1%). Lastly, an early rehabilitation (<6 weeks) was found to be more efficient (+21.09%) in determining responsiveness (P < 0.001). Becoming newly independent for gait, that refers to a FAC score ≥4, was related with age and RAGT sessions (P = 0.001). In conclusion, a younger age (≤60 years), an early rehabilitation (<6 weeks since stroke) and a higher RAGT dose (at least 14 sessions) were related to a favourable outcome in patients with subacute stroke
Maternal mortality in 19th- and early 20th-century Italy
Although dramatically reduced in Western and developed countries, maternal mortality is still today one of the most relevant social and health scourges in developing countries. This is the reason why high levels of maternal mortality are always interpreted as a sign of low living standards, ignorance, poverty and woman discrimination. Maternal mortality represents, therefore, a very peculiar characteristic of demographic systems of ancien regime. Despite this important role in demographic systems, no systematic study has been addressed to investigate the impact of maternal mortality in historical Italy. The aim of this article is to shed some light on such a phenomenon by investigating its trend over time and the determinants in some Italian populations between the 18th and the early 20th centuries. The analysis will make use of civil and parish registers linked together by means of nominative techniques, and it will be, therefore, carried out at the micro level
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