Theories and classifications of defence mechanisms are not unified. This study addresses the psychological system as a dissipative structure which exchanges information with the external and internal world. When using defence mechanisms, the cognitive-affective schema of an individual could remain stable and ordered by excluding psychological entropy, obtaining psychological negentropy or by dissipating the energy of self-presentation. From this perspective, defences can be classified into three basic types: isolation, compensation and self-dissipation. However, not every kind of defence mechanisms can actually help the individual. Non-adaptive defences are just functioning as an effective strategy in the short run but can be a harmful approach in the long run, while adaptive defences could instead help the individual as a long-term mechanism. Thus, we would like to suggest that it is more useful for the individual to use more adaptive defence mechanisms and seek out social or interpersonal support when undergoing psychic difficulties. As this model of defences is theoretical at present, we therefore aim to support and enrich this viewpoint with empirical evidence.
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http://dx.doi.org/10.1111/1745-8315.12623 | DOI Listing |
Neurotox Res
January 2025
Programa de Pós-Graduação em Ciências Biológicas: Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil.
Resveratrol, a natural polyphenol, has shown promising neuroprotective effects in several in vivo and in vitro experimental models. However, the mechanisms by which resveratrol mediates these effects are not fully understood. Glutamate is the major excitatory neurotransmitter in the brain; however, excessive extracellular glutamate levels can affect neural activity in several neurological diseases.
View Article and Find Full Text PDFJ Pediatr Gastroenterol Nutr
January 2025
Department of Pediatrics, Uniformed Services University of the Health Sciences, Bethesda, Maryland, USA.
This study investigated trends in suspected cannabinoid hyperemesis syndrome (CHS)-related emergency department visits among youth (15-24 years old) in the United States between 2006 and 2020. Using data from the Nationwide Emergency Room Sample, over 55,000 suspected CHS-related visits were identified, with an average annual increase of 28.1% per year.
View Article and Find Full Text PDFPlant J
January 2025
College of Agriculture, Shanxi Agricultural University, Taigu, Shanxi, 030801, China.
Glutathione reductase (GR) maintains the cellular redox state by reducing oxidized glutathione to glutathione (GSH), which regulates antioxidant defense. Additionally, GR plays an essential role in photosynthesis; however, the mechanism by which GR regulates photosystem II (PSII) is largely unknown. We identified six, three, and three GR genes in Gossypium hirsutum, Gossypium arboreum, and Gossypium raimondii, respectively.
View Article and Find Full Text PDFUnlabelled: Success of phage therapies is limited by bacterial defenses against phages. While a large variety of anti- phage defense mechanisms has been characterized, how expression of these systems is distributed across individual cells and how their combined activities translate into protection from phages has not been studied. Using bacterial single-cell RNA sequencing, we profiled the transcriptomes of ∼50,000 cells from cultures of a human pathobiont, infected with a lytic bacteriophage.
View Article and Find Full Text PDFNOD-like receptors (NLRs) are intracellular immune receptors that detect pathogen-associated cues and trigger defense mechanisms, including regulated cell death. In filamentous fungi, some NLRs mediate heterokaryon incompatibility, a self/non-self recognition process that prevents the vegetative fusion of genetically distinct individuals, reducing the risk of parasitism. The and NLRs in are highly polymorphic incompatibility genes ( genes) whose products recognize different alleles of the gene via a sensor domain composed of WD40 repeats.
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