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1.
Int J Mol Sci ; 25(9)2024 Apr 30.
Article in English | MEDLINE | ID: mdl-38732139

ABSTRACT

The plant-derived α-linolenic acid (ALA) is an essential n-3 acid highly susceptible to oxidation, present in oils of flaxseeds, walnuts, canola, perilla, soy, and chia. After ingestion, it can be incorporated in to body lipid pools (particularly triglycerides and phospholipid membranes), and then endogenously metabolized through desaturation, elongation, and peroxisome oxidation to eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA), with a very limited efficiency (particularly for DHA), beta-oxidized as an energy source, or directly metabolized to C18-oxilipins. At this moment, data in the literature about the effects of ALA supplementation on metabolic syndrome (MetS) in humans are inconsistent, indicating no effects or some positive effects on all MetS components (abdominal obesity, dyslipidemia, impaired insulin sensitivity and glucoregulation, blood pressure, and liver steatosis). The major effects of ALA on MetS seem to be through its conversion to more potent EPA and DHA, the impact on the n-3/n-6 ratio, and the consecutive effects on the formation of oxylipins and endocannabinoids, inflammation, insulin sensitivity, and insulin secretion, as well as adipocyte and hepatocytes function. It is important to distinguish the direct effects of ALA from the effects of EPA and DHA metabolites. This review summarizes the most recent findings on this topic and discusses the possible mechanisms.


Subject(s)
Metabolic Syndrome , alpha-Linolenic Acid , Metabolic Syndrome/metabolism , Humans , alpha-Linolenic Acid/metabolism , alpha-Linolenic Acid/administration & dosage , Animals , Fatty Acids, Unsaturated/metabolism , Dietary Supplements , Insulin Resistance
2.
J Big Data ; 9(1): 117, 2022.
Article in English | MEDLINE | ID: mdl-36532842

ABSTRACT

The ability to cross data from multiple sources represents a competitive advantage for organizations. Yet, the governance of the data lifecycle, from the data sources into valuable insights, is largely performed in an ad-hoc or manual manner. This is specifically concerning in scenarios where tens or hundreds of continuously evolving data sources produce semi-structured data. To overcome this challenge, we develop a framework for operationalizing and automating data governance. For the first, we propose a zoned data lake architecture and a set of data governance processes that allow the systematic ingestion, transformation and integration of data from heterogeneous sources, in order to make them readily available for business users. For the second, we propose a set of metadata artifacts that allow the automatic execution of data governance processes, addressing a wide range of data management challenges. We showcase the usefulness of the proposed approach using a real world use case, stemming from the collaborative project with the World Health Organization for the management and analysis of data about Neglected Tropical Diseases. Overall, this work contributes on facilitating organizations the adoption of data-driven strategies into a cohesive framework operationalizing and automating data governance.

3.
Nat Commun ; 12(1): 5375, 2021 09 10.
Article in English | MEDLINE | ID: mdl-34508070

ABSTRACT

The viability of lithium-sulfur batteries as an energy storage technology depends on unlocking long-term cycle stability. Most instability stems from the release and transport of polysulfides from the cathode, which causes mossy growth on the lithium anode, leading to continuous consumption of electrolyte. Therefore, development of a durable cathode with minimal polysulfide escape is critical. Here, we present a saccharide-based binder system that has a capacity for the regulation of polysulfides due to its reducing properties. Furthermore, the binder promotes the formation of viscoelastic filaments during casting which endows the sulfur cathode with a desirable web-like microstructure. Taken together this leads to 97% sulfur utilisation with a cycle life of 1000 cycles (9 months) and capacity retention (around 700 mAh g-1 after 1000 cycles). A pouch cell prototype with a specific energy of up to 206 Wh kg-1 is produced, demonstrating the promising potential for practical applications.

4.
J Sci Food Agric ; 99(13): 5834-5841, 2019 Oct.
Article in English | MEDLINE | ID: mdl-31206711

ABSTRACT

BACKGROUND: Many studies have described cocoa polyphenols as being bioactive compounds with a potential positive effect on human health. Although dark chocolate is a most powerful source of antioxidants, their content is lower in milk chocolate; conversely, in white chocolate the fat-free cocoa solids are omitted. The aim of this study was to increase polyphenol content and antioxidant capacity of white chocolate by adding encapsulated green tea extract (GTE) in amounts of 60, 80 and 100 g kg-1 . RESULTS: GTE influenced the particle size parameters, increasing the volume weighted mean from 15.43 µm in white chocolate to 19.34 µm in chocolate with 100 g kg-1 GTE. At the same time, the viscosity of enriched chocolate also increased owing to the addition of new solid particles. The surface color of enriched chocolates changed in accordance with the amount of encapsulate, where all enriched chocolates had a slightly lighter color after 12 months of storage. Total polyphenol content (mg gallic acid equivalents (GAE) kg-1 ) increased from 0.41 in white chocolate to 2.73 in chocolate enriched with maximal GTE. This amount of GTE increased antioxidant capacity (mmol Trolox equivalents kg-1 ) from 1.22 in white chocolate to 16.12. After 12 months of storage, degradation of polyphenols was found to be a maximum of 37.27%, while antioxidant capacity decreased up to 44.14%. CONCLUSION: In addition to the impact on chocolate viscosity, GTE added value through the polyphenol content and sensorial profile of the new product with an unusual green tea flavor and a shelf life of at least 12 months. © 2019 Society of Chemical Industry.


Subject(s)
Cacao/chemistry , Camellia sinensis/chemistry , Chocolate/analysis , Food Additives/analysis , Plant Extracts/analysis , Antioxidants/analysis , Food Handling , Humans , Polyphenols/analysis , Taste , Viscosity
5.
Pol J Pathol ; 69(2): 136-142, 2018.
Article in English | MEDLINE | ID: mdl-30351860

ABSTRACT

Primary testicular diffuse large B-cell lymphoma (PT-DLBCL) represents a rare and aggressive extranodal non-Hodgkin's lymphoma (NHL) with some specific features that differ from other NHLs. Formalin fixed, paraffin wax embedded (FFPE) samples of 21 PT-DLBCLs and 30 comparative patients with DLBCL were analysed. All PT-DLBCL patients were treated with rituximab-containing regimens, intrathecal prophylaxis (10 patients), and irradiation of the contralateral testis (9 patients). FFPE samples were additionally analysed by immunohistochemistry (Bcl-2, c-Myc protein expression) and fluorescence in situ hybridisation (FISH) (BCL2 and MYC). The patients with PT-DLBCL (median age 48.5 years), had low frequency of B symptoms (28.6%) and were often diagnosed in I and II Ann Arbor clinical stage (66.0%). The majority of PT-DLBCL (80.9%) had a non-germinal centre B-cell-like immunophenotype. Immunohistochemical staining showed increased c-Myc protein expression in the PT-DLBCL group compared to the control group (p = 0.016). MYC rearrangement was detected in 1 of 14 (7.0%), and MYC amplification in 3 of 14 (21.0%) patients. One of the 14 cases (7.0%) in the PT DLBCL group showed BCL2 rearrangement, and four of 14 (28.05%) cases showed BCL2 amplification. Complete remission (CR) was achieved in 75.0% of PT-DLBCL patients who had superior survival compared to those who did not achieve CR (median 48 vs. 21 months, p = 0.012). Patients with PT-DLBCL express some immunohistochemical, biological, and clinical features that might differentiate them from nodal and extranodal DLBCL patients, indicating the need for a more personalised treatment approach.


Subject(s)
Lymphoma, Large B-Cell, Diffuse/diagnosis , Lymphoma, Large B-Cell, Diffuse/pathology , Testicular Neoplasms/diagnosis , Testicular Neoplasms/pathology , Humans , Immunohistochemistry , In Situ Hybridization, Fluorescence , Male , Middle Aged , Proto-Oncogene Proteins c-bcl-2/genetics , Proto-Oncogene Proteins c-myc/genetics , Rituximab/therapeutic use , Testis/pathology
6.
Srp Arh Celok Lek ; 136(3-4): 162-5, 2008.
Article in Serbian | MEDLINE | ID: mdl-18720752

ABSTRACT

INTRODUCTION: Spondylitis is a rare bone and joint infection. It is a disease with long clinical history. Often, it is difficult to recognise symptoms at a proper time, and, due to the complex clinical outcome of spondylitis, a clinician may think about other problems in the body. CASE OUTLINE: A case report of a 59-year-old male patient with thoracic spine spondylitis is presented, formerly treated as pulmonary thromboembolism with pericarditis. Only after neurological disorder such as paraplegia and orthopaedic consultative examination, real diagnosis was established. After that, the patient was hospitalized and operated on. CONCLUSION: A therapeutic approach to spondylitis is based on surgery, antibiotic drugs and symptomatic therapy. Due to the frequent occurrence of neurologic disorders, therapy could be prolonged and uncertain.


Subject(s)
Spondylitis/diagnosis , Thoracic Vertebrae , Humans , Male , Middle Aged , Spondylitis/therapy
7.
Srp Arh Celok Lek ; 136 Suppl 3: 259-62, 2008 Sep.
Article in Serbian | MEDLINE | ID: mdl-19562880

ABSTRACT

INTRODUCTION: The paper presents important facts in the application of recombinant human factor VIIa (rFVIIa) and in the treatment of renal cell carcer. CASE REPORT: A 69-year old male with infiltrative renal cell carcer underwent radical nephrectomy using Hasagawa's approach. The extirpated tumor was 35 cm in diameter. During surgery, the patient suffered cardiac arrest with 3500 ml blood loss. Twenty-four hours after operation, he lost additional 2100 ml of blood. Despite adequate blood substitution with intensive surgical attempts to treat haemostasis, bleeding did not stop until the application of rFVIIa (300 IU). The patient survived and fully recovered. CONCLUSION: To control massive non-surgical bleeding additionally complicated by paraneoplastic syndrome, extensive surgical intervention, haemodilution and massive blood substitution, the application of rFVIIa has proved to be most successful.


Subject(s)
Blood Loss, Surgical , Factor VIIa/therapeutic use , Hemostatics/therapeutic use , Nephrectomy , Aged , Carcinoma, Renal Cell/surgery , Humans , Kidney Neoplasms/surgery , Male , Recombinant Proteins/therapeutic use
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