Search results for "Defense"
showing 10 items of 247 documents
Combining Hexanoic Acid Plant Priming with Bacillus thuringiensis Insecticidal Activity against Colorado Potato Beetle
2013
Interaction between insect herbivores and host plants can be modulated by endogenous and exogenous compounds present in the source of food and might be successfully exploited in Colorado potato beetle (CPB) pest management. Feeding tests with CPB larvae reared on three solanaceous plants (potato, eggplant and tomato) resulted in variable larval growth rates and differential susceptibility to Bacillus thuringiensis Cry3Aa toxin as a function of the host plant. An inverse correlation with toxicity was observed in Cry3Aa proteolytic patterns generated by CPB midgut brush-border membrane vesicles (BBMV) from Solanaceae-fed larvae, being the toxin most extensively proteolyzed on potato, followed…
Actinins as novel broad-spectrum AMP isolated from the tentacle of Anthozoan Actinia equina (Linnaeus, 1758)
2023
Capturing activities and defense mechanisms of Cnidarian are strongly associated with toxins and peptide with antimicrobial properties. AMP are an important component of many organisms’ innate immune system with a good inhibitory or killing effect against invaders pathogens. We investigated the AMP activity of acid extracts obtained from tentacle and body of Actinia equina (Cnidaria, Anthozoa) against Gram positive (Micrococcus lysodeikticus) and Gram negative (Escherichia coli, Vibrio alginolyticus) bacteria. The peptide fractions showed interesting minimum inhibitory concentrations (MIC) values (concentrations up to 0.125 μg/ml) against tested pathogens. Tentacle acid extracts exhibiting …
Actuaciones procesales de la mujer en Roma. Prohibición edictal y literatura jurídica
2020
[Resumen] La improcedencia moral de que las mujeres usen de la palabra en el ámbito público, que se refiere a los lugares de espacio relevante como es el forum o intervengan en actos jurídicos formales, especialmente los solemnia verba, no impide que pueda intervenir procesalmente en defensa de asuntos propios y ajenos, aunque esta postulatio se traten de virilibus officiis. De esta forma la intervención de la mujer en la defensa de asuntos propios y ajenos aparece como algo poco común pero no prohibido hasta finales de la república. Un edicto de la primera mitad del s. I a. C, introduce el impedimento general de que intervenga la mujer en los procesos ajenos. La contradictoria afirmación q…
The echinoderm innate humoral immune response
2015
Abstract: Multicellular organisms have an immune system, which is essential for the survival of living beings. Interest in the immune system has been expanded since common characteristics of innate immunity between Drosophila melanogaster (Meigen, 1830) and mammals were discovered in the 1980. Since then, immunology has mainly focused on the adaptive immune system that seems to be restricted to vertebrates. Unlike the innate immunity, the adaptive one is acquired after exposure to a specific antigen (Ag) and includes: antigen-presenting cells such as macrophages, proliferation of B and T lymphocytes, Ag-specific antibody/cytokine production and immunological memory. Innate immunity is inste…
Qualcosa è cambiato?
2014
Essential oil of Cyphostemma juttae (Vitaceae): Chemical composition and antitumor mechanism in triple negative breast cancer cells
2019
The genus Cyphostemma (Planch.) Alston (Vitaceae) includes about 150 species distrib- uted in eastern and southern Africa and Madagascar. Some species are used in traditional medicine and their biological activities, including antiproliferative effects against cancer cell lines, have been demonstrated. To date no investigations on Cyphostemma essential oils have been carried out. Essential oils, which play important roles in plant defenses have been demonstrated to be active in the treatment of several human diseases and to enhance bioavability of other drugs. The aim of this paper was to identify the chemical composition of the essential oil of the leaves of Cyphostemma juttae (Dinter &…
Nihil addo, ducas licet. La addictio del iudicatus en una atelana de Novio (fr. 115 Ribbeck3 = 110 Frassinetti)
2022
El fragmento atelánico en cuestión, cuyo contexto es la representación escénica de la addictio de un deudor insolvente a su acreedor conforme a la legis actio per manus iniectionem, es analizado en relación con otras fuentes de significación jurídica que atestiguan la supervivencia de este procedimiento de ejecución personal en el s. I a. C., así como con otros pasajes de la comedia latina ¿pertenecientes al propio Novio y a Plauto¿ en los que dicha situación jurídica es utilizada como recurso cómico. La frase nihil addo es intencionadamente ambigua porque puede entenderse como «no digo nada más» pero también como «no pago una suma mayor», bien porque el personaje que la pronuncia haya supu…
¿Qué perspectivas para las lenguas regionales de Francia?
2014
Nous étudions, dans ce travail, la situation de langues en contact en France et les politiques linguistiques qui ont été menées depuis que le français a été institué langue officielle du pays, afin de déterminer les perspectives de reconnaissance nationale qui existent pour les autres langues, encore sans statut officiel. Le traitement exclusivement national qu’elles ont reçu jusqu’à la fin du XXe siècle se heurte aujourd’hui à la position de défense et de protection des langues régionales de l’Union Européenne. Nous analyserons les deux approches, nationale et européenne, avant de conclure en termes d’attentes pour ces langues minoritaires. We study in this work the situation of the langua…
LPS challenge regulates gene expression and tissue localization of a Ciona intestinalis gene through an alternative polyadenylation mechanism.
2013
A subtractive hybridization strategy for the identification of differentially expressed genes was performed between LPS-challenged and naive Ciona intestinalis. This strategy allowed the characterization of two transcripts (Ci8short and Ci8long) generated by the use of two Alternative Polyadenylation sites. The Ci8long transcript contains a protein domain with relevant homology to several components of the Receptor Transporting Protein (RTP) family not present in the Ci8short mRNA. By means of Real Time PCR and Northern Blot, the Ci8short and Ci8long transcripts showed a different pattern of gene expression with the Ci8short mRNA being strongly activated after LPS injection in the pharynx. …
Preoperative nasopharyngeal swab testing and postoperative pulmonary complications in patients undergoing elective surgery during the SARS-CoV-2 pand…
2021
Abstract Background Surgical services are preparing to scale up in areas affected by COVID-19. This study aimed to evaluate the association between preoperative SARS-CoV-2 testing and postoperative pulmonary complications in patients undergoing elective cancer surgery. Methods This international cohort study included adult patients undergoing elective surgery for cancer in areas affected by SARS-CoV-2 up to 19 April 2020. Patients suspected of SARS-CoV-2 infection before operation were excluded. The primary outcome measure was postoperative pulmonary complications at 30 days after surgery. Preoperative testing strategies were adjusted for confounding using mixed-effects models. Results Of 8…