ABSTRACT
This study investigated the potential of aqueous epazote (AE) and ethanolic extract of epazote (ETHE) as inhibitors of lipid oxidation in raw and cooked ground beef stored at 4 °C for 9 days as well as frozen beef patties stored at -18 °C for 90 days. Organic acids were identified in AE and ETHE using ultra-high-performance liquid chromatography-quadrupole time-of-flight (UHPLC-qTOF). Chemical composition, TBARS, pH, colour, sensory acceptability and intensity of oxidised flavour were analysed in the three different meat products. ETHE showed higher values in organic acid content than AE. In raw ground beef, ETHE inhibited lipid oxidation and received the highest score in the three sensorial attributes evaluated at the end of the storage period, whereas in cooked ground beef it showed the highest intensity of oxidised flavour. Regarding CTL, AE reduced lipid oxidation in the cooked ground beef as well as the frozen patties, with improved colour. Therefore, epazote may be a promising natural antioxidant source for use in meat.
Subject(s)
Chenopodium ambrosioides/chemistry , Meat Products/analysis , Oxidation-Reduction , Animals , Antioxidants , Cattle , Cooking , Food Preservation , Freezing , Lipids/chemistry , Plant Extracts/chemistryABSTRACT
A case of angiosarcoma, Raynaud's disease and arteriovenous malformation of the intestinal tract is presented. We propose the association of these three vascular diseases, which has not yet been described. The study of more cases is important in order to understand the physiopathological mechanisms involved.
Subject(s)
Arteriovenous Malformations/etiology , Digestive System/blood supply , Hemangiosarcoma/etiology , Raynaud Disease/etiology , Soft Tissue Neoplasms/etiology , Adult , Arteriovenous Malformations/diagnosis , Arteriovenous Malformations/pathology , Biopsy, Needle , Buttocks , Emergencies , Fatal Outcome , Female , Hemangiosarcoma/diagnosis , Hemangiosarcoma/pathology , Humans , Raynaud Disease/diagnosis , Raynaud Disease/pathology , Soft Tissue Neoplasms/diagnosis , Soft Tissue Neoplasms/pathology , Time FactorsABSTRACT
A man with histologically unequivocal mixed-cellularity Hodgkin's disease, stage IVB, developed an IgG lambda paraproteinemia with bone marrow plasmocytosis but without any other evidence of multiple myeloma. This unusual finding is discussed in the context of recent data suggesting a B-cell origin for some cases of Hodgkin's disease as well as in relation to the evidence of immunoregulatory disturbances in this entity.
Subject(s)
Hodgkin Disease/complications , Immunoglobulin G/analysis , Immunoglobulin lambda-Chains/analysis , Paraproteinemias/complications , B-Lymphocytes/physiology , Hodgkin Disease/immunology , Humans , Lymph Nodes/pathology , Male , Middle AgedABSTRACT
The authors report a patient with Ph1-positive chronic granulocytic leukemia (CGL) who developed "blast crisis" after six years of chronic phase. The presence of mast cell precursors and basophil blasts was demonstrated by ultrastructural morphology and cytochemistry. Membrane phenotype studies with monoclonal antibodies helped in the further characterization of these cells. The possible implication of these findings in the origin of mast cells and the relationship of these cells with basophils are discussed.
