616 research outputs found

    Pesquisa, desenvolvimento e inovação em pinhão-manso para produção de biocombustíveis.

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    Características e potencial da cultura para o mercado de biodiesel; Lacunas de conhecimento e desafios para pesquisa; Situação atual e perspectivas de pesquisa; Banco de germoplasma (BAG-Jatropha) e caracterização de pinhão-manso; Descritores botânicos para pinhão-manso (Jatropha curcas L.); Registro de cultivares e melhoramento de pinhão manso; Possibilidades de parceria, cooperação técnica e financeira; Apropriação de resultados.bitstream/item/17976/1/DOC01.pd

    Undetected patricide: Inaccuracy of cause of death determination without an autopsy

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    Patricide (killing the father) is uncommon form of homicide. Usually the assaults occur at home in the absence of witnesses and adult sons are frequently involved. Homicides in a domestic context usually do not tend to recurrence, because the motivation for the crime ends with the death of the parent. However, this is not what was observed in the present case study dealing with the death of a 70 years old white man originally misclassified as accident and discovered three years later only after an additional homicide in a family context of a 60 years old white lady. Multiple stab wounds to the neck and thorax were misinterpreted at the external male body examination as blunt trauma falling down stairs. No forensic autopsy was requested and no comparison of medical findings with the results from the death scene, such as a bloodstain analysis was performed by the police officers nor required by the judicial authority. This was quite surprising because an additional but preliminary post-mortem external examination performed by a general practitioner on the male body already raised the suspicion that the external lesions were stab wounds thus requiring a forensic autopsy. Only the exhumation of the elderly body, performed years later, confirmed the diagnostic hypothesis raised by the first physician. The present case is quite representative of a death investigation not run professionally and performed by individuals with no specific training where most of the medico-legal investigations (especially for traumatic and violent deaths) are restricted to an external body examination without subsequent autopsy. Although misinterpretation of external lesions is inevitable and significant discrepancies between external body examination and forensic autopsy are not rare, in the case of contradictory results of postmortem external examination or unclear/suspicious cause and manner of death, investigation should proceed necessarily with a forensic autopsy

    Commentary: Glucose control: Not just a bystander in GLP-1RA-mediated cardiovascular protection

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    Cardiovascular (CV) disease prevention in type 2 diabetes (T2D)demands multifactorial interventions including treatment of dyslipidemia, hypertension, hypercoagulability, and certainly hyperglycemia[1]. However, randomized controlled trials specifically addressing the impact of intensive glucose control (IGC) on CV outcomes yielded ambiguous results [2], while real-life evidence from a Swedish nationwide registry showed hyperglycemia as the strongest predictor of myocardial infarction (MI) and stroke [3]. Although CV outcome trials (CVOT) with GLP-1 receptor agonists (GLP-1RA) were designed to achieve glycemic equipoise, all showed a greater HbA1c reduction in the intervention arm [4–10], allowing to consider the potential effect of different degrees of glucose-lowering on their resul

    Genetic parameters and variability in physic nut accessions during early developmental stages.

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    The objective of this work was to estimate the genetic parameters and variability among accessions (half?sib families) of physic nut (Jatropha curcas) during the early stages of development. For this study, 110 accessions in the first year of development of the physic nut germplasm bank, maintained at Embrapa Cerrados, DF, Brazil, were evaluated in situ. The experiment was established in a randomized complete block design, with two replicates and five plants per plot arranged in rows at 4x2 m spacing. Grain yield, total number of branches per plant, plant height, stem diameter, canopy projection on the row, canopy projection between rows, canopy volume, number of days until first flowering and height of the first inflorescence were evaluated. Estimates of vegetative genetic parameters showed the existence of genetic variability in the physic nut germplasm bank. Physic nut accessions of the germplasm bank were grouped into five similarity groups based on character divergence. Although preliminary, the obtained results are promising for showing potential for Jatropha improvement with selective efficiency

    Efficacy and safety of GLP-1 receptor agonists as add-on to SGLT2 inhibitors in type 2 diabetes mellitus: A meta-analysis

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    GLP-1 receptor agonists (GLP-1RA) and SGLT2 inhibitors (SGLT2i) have been associated with improved glycemic control, body weight loss and favorable changes in cardiovascular risk factors and outcomes. We conducted a systematic review and meta-analysis to evaluate the effects of the addition of GLP-1RA to SGLT2i in patients with type 2 diabetes mellitus and inadequate glycemic control. Six databases were searched until March 2019. Randomized controlled trials (RCT) with a follow-up of at least 24 weeks reporting on HbA1c, body weight, systolic blood pressure, lipids, achievement of HbA1c < 7%, requirement of rescue therapy due to hyperglycemia and hypoglycemic events were selected. Four RCTs were included. Compared to SGLT2i, the GLP-1RA/SGLT2i combination was associated with greater reduction in HbA1c (−0.74%), body weight (−1.61 kg), and systolic blood pressure (−3.32 mmHg). A higher number of patients achieved HbA1c < 7% (RR = 2.15), with a lower requirement of rescue therapy (RR = 0.37) and similar incidence of hypoglycemia. Reductions in total and LDL cholesterol were found. The present review supports treatment intensification with GLP-1RA in uncontrolled type 2 diabetes on SGLT2i. This drug regimen could provide improved HbA1c control, together with enhanced weight loss and blood pressure and lipids control

    Life cycle inventory of physic nut biodiesel: comparison between the manual and mechanized agricultural production systems practiced in Brazil.

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    The physic nut (Jatropha curcas L.) is an oleaginous species recently introduced into Brazil for energy purposes. The technological framework for the development of the physic nut biodiesel productive chain in Brazil is still being set up. Two production systems are in practice at the agricultural level, the small scale manual system and the medium scale mechanized system. The objective of the present research was to assess the environmental performance of these two production systems by elaborating life-cycle inventories (LCIs) using a cradle-to-gate approach. The main environmental aspects of these LCIs are the synthetic fertilizers, pesticides, land-use changes and its emissions and the occupation of the land. Making use of the residues from the agroindustrial physic nut chain and the use of biological pest control methods could improve the environmental performance of these systems

    Cardiovascular and Renal Effectiveness of GLP-1 Receptor Agonists vs. Other Glucose-Lowering Drugs in Type 2 Diabetes: A Systematic Review and Meta-Analysis of Real-World Studies

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    Cardiovascular outcome trials (CVOT) showed that treatment with glucagon-like peptide-1 receptor agonists (GLP-1RA) is associated with significant cardiovascular benefits. However, CVOT are scarcely representative of everyday clinical practice, and real-world studies could provide clini-cians with more relatable evidence. Here, literature was thoroughly searched to retrieve real-world studies investigating the cardiovascular and renal outcomes of GLP-1RA vs. other glucose-lowering drugs and carry out relevant meta-analyses thereof. Most real-world studies were conducted in populations at low cardiovascular and renal risk. Of note, real-world studies investigating cardio-renal outcomes of GLP-1RA suggested that initiation of GLP-1RA was associated with a greater benefit on composite cardiovascular outcomes, MACE (major adverse cardiovascular events), all-cause mortality, myocardial infarction, stroke, cardiovascular death, peripheral artery disease, and heart failure compared to other glucose-lowering drugs with the exception of sodium-glucose transporter-2 inhibitors (SGLT-2i). Initiation of SGLT-2i and GLP-1RA yielded similar effects on composite cardiovascular outcomes, MACE, stroke, and myocardial infarction. Conversely, GLP-1RA were less effective on heart failure prevention compared to SGLT-2i. Finally, the few real-world studies addressing renal outcomes suggested a significant benefit of GLP-1RA on estimated glomerular filtration rate (eGFR) reduction and hard renal outcomes vs. active comparators except SGLT-2i. Further real-world evidence is needed to clarify the role of GLP-1RA in cardio-renal protection among available glucose-lowering drugs

    Effects of extra virgin olive oil polyphenols on beta-cell function and survival

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    Extra virgin olive oil (EVOO) is a major component of the Mediterranean diet and is appreciated worldwide because of its nutritional benefits in metabolic diseases, including type 2 diabetes (T2D). EVOO contains significant amounts of secondary metabolites, such as phenolic compounds (PCs), that may positively influence the metabolic status. In this study, we investigated for the first time the effects of several PCs on beta-cell function and survival. To this aim, INS-1E cells were exposed to 10 μM of the main EVOO PCs for up to 24 h. Under these conditions, survival, insulin biosynthesis, glucose-stimulated insulin secretion (GSIS), and intracellular signaling activation (protein kinase B (AKT) and cAMP response element-binding protein (CREB)) were evaluated. Hydroxytyrosol, tyrosol, and apigenin augmented beta-cell proliferation and insulin biosynthesis, and apigenin and luteolin enhanced the GSIS. Conversely, vanillic acid and vanillin were pro-apoptotic for beta-cells, even if they increased the GSIS. In addition, oleuropein, p-coumaric, ferulic and sinapic acids significantly worsened the GSIS. Finally, a mixture of hydroxytyrosol, tyrosol, and apigenin promoted the GSIS in human pancreatic islets. Apigenin was the most effective compound and was also able to activate beneficial intracellular signaling. In conclusion, this study shows that hydroxytyrosol, tyrosol, and apigenin foster beta-cells’ health, suggesting that EVOO or supplements enriched with these compounds may improve insulin secretion and promote glycemic control in T2D patients
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