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Castanho TC, Santos NC, Meleiro-Neves C, Neto S, Moura GR, Santos MA, Cruz AR, Cunha O, Castro Rodrigues A, Rodrigues AJ, Sousa N. Association of positive and negative life events with cognitive performance and psychological status in late life: A cross-sectional study in Northern Portugal. Aging Brain 2021; 1:100020. [PMID: 36911520 PMCID: PMC9997151 DOI: 10.1016/j.nbas.2021.100020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2021] [Revised: 07/27/2021] [Accepted: 08/02/2021] [Indexed: 11/30/2022] Open
Abstract
Objectives Life events have important effects on psychological well-being. Yet, studies have mainly focused on exploring the impact of traumatic and negative experiences on health and well-being, with positive events receiving marginal attention. In this study, we investigated the association between negative and positive life events, cognitive performance and psychological status in older individuals. Method A cross-sectional approach with a sample of 97 community-dwelling adults, recruited from a network of 23 centres/institutions in Northern Portugal, and aged between 56 and 85 years, was conducted. All participants were evaluated through a battery of tests assessing for depressive mood, perceived stress, and cognitive functioning. Life events were measured using the Lifetime Experiences Scale (LIFES) which covers 75 life experiences organized in eight domains. Results A total of 95.9% of the participants reported more positive life events than negative throughout life. Participants reporting more positive experiences had lower scores in the depressive mood and perceived stress measures. At the domain-level of LIFES scale, more negative experiences in the Work and Health domains were associated with a depressed mood and more perceived stress. Significant positive associations were found between positive life experiences and most cognitive measures, after controlling for sex, education, age and depressive symptoms. Namely, more positive experiences at School, Leisure, and Living conditions were positively associated with better performance across cognitive tests. Discussion This study adds important evidence on the association between of life events, both negative and positive experiences, on cognition and psychological well-being, providing a more balanced view of the field.
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Affiliation(s)
- T C Castanho
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho - Braga, Portugal.,Association P5 Digital Medical Centre (ACMP5), Braga, Portugal
| | - N C Santos
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho - Braga, Portugal.,Association P5 Digital Medical Centre (ACMP5), Braga, Portugal
| | - C Meleiro-Neves
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho - Braga, Portugal
| | - S Neto
- Genome Medicine laboratory, Institute of Biomedicine - iBiMED, Department of Medical Sciences, University of Aveiro, Aveiro, Portugal
| | - G R Moura
- Genome Medicine laboratory, Institute of Biomedicine - iBiMED, Department of Medical Sciences, University of Aveiro, Aveiro, Portugal
| | - M A Santos
- Genome Medicine laboratory, Institute of Biomedicine - iBiMED, Department of Medical Sciences, University of Aveiro, Aveiro, Portugal
| | - A R Cruz
- School of Psychology, University of Minho - Braga, Portugal.,Lusófona University HEI-Lab, Porto, Portugal
| | - O Cunha
- School of Psychology, University of Minho - Braga, Portugal.,Lusófona University HEI-Lab, Porto, Portugal
| | - A Castro Rodrigues
- School of Psychology, University of Minho - Braga, Portugal.,ISPA, William James Center for Research, Lisboa, Portugal
| | - A J Rodrigues
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho - Braga, Portugal.,Clinical Academic Center - Braga (2CA-B), Braga, Portugal
| | - N Sousa
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho - Braga, Portugal.,Association P5 Digital Medical Centre (ACMP5), Braga, Portugal.,Clinical Academic Center - Braga (2CA-B), Braga, Portugal
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Arantes C, Cortez-Dias N, Agostinho J, Goncalves IS, Lima Da Silva G, Francisco AR, Carneiro M, Neto S, Quaresma J, Carpinteiro L, Pinto F, Sousa J. P371Impact of contact force sensing ablation catheter on atrial fibrillation ablation procedure. Europace 2017. [DOI: 10.1093/ehjci/eux141.097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Arantes C, Cortez-Dias N, Lima Da Silva G, Agostinho J, Goncalves IS, Guimaraes T, Cota S, Neto S, Barreiros C, Carpinteiro L, Pinto F, Sousa J. 1170Ablation of atrial fibrillation: does age matters? Europace 2017. [DOI: 10.1093/ehjci/eux153.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Abstract
The catalytic hydrogenation of (S)-alkyl-N-(2-methylbenzoyl)pyroglutamates was studied over supported rhodium and ruthenium catalysts at room temperature and a pressure of 5 MPa. The reaction was diastereoselective with the predominant formation of (1S,2R)-2-methylcyclohexane carboxylic acid with a diastereomeric excess (de) of up to 96%. The most stable conformation was determined by means of a combination of modelling calculations, NMR spectroscopy and X-ray structural determination. In this conformation, the carbonyl group of the pyroglutamate auxiliary shields one face of the aromatic ring. The observed selectivity may thus be explained by a preferential adsorption at the unshielded face which avoids steric repulsion by the C=O group to result in a cis hydrogenation. The addition of an amine, the nature of the support (alumina or active carbon) or of the metal (Rh or Ru) were shown to give additional stabilisation of the adsorption at the unshielded face to increase the diastereoisomeric excess.
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Affiliation(s)
- M Besson
- Institut de Recherches sur la Catalyse-CNRS, Villeurbanne, France.
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Oliveira G, Xavier P, Murphy B, Neto S, Mendes A, Sayegh MH, Guerra LE. Cytokine analysis of human renal allograft aspiration biopsy cultures supernatants predicts acute rejection. Nephrol Dial Transplant 1998; 13:417-22. [PMID: 9509455 DOI: 10.1093/oxfordjournals.ndt.a027839] [Citation(s) in RCA: 23] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND A Th1 response is said to be associated with transplant rejection and Th2 with tolerance, although this is not agreed by all. Cytokines evaluation in peripheral blood and urine in kidney transplants produces variable results. We hypothesized that measurement of major cytokines involved in Th1/Th2 paradigm on transplant renal-infiltrating cells could bring valuable scientific and clinical information. METHODS Fifty-six adult cadaver kidney transplants were subdivided into 21 stable patients (group A), 22 suffering acute rejection (group B), 10 with chronic rejection (group C) and three with CMV disease (group D). Fine-needle aspiration biopsies were cultured and their supernatants analysed for IL-2, IL-4, IL-10 and IFN-gamma. RESULTS Group A produced small amounts of both IL-2 and IL-10 while group B synthetized significantly higher IL-2 and significantly lower IL-10 amounts than group A. Group B produced significantly more IL-2 than A on day 7 post-transplantation, several days before rejection supervened. Group C produced IL-10 and very low amount of IL-2. Group D produced both IL-2 and IL-10. We did not find any IL-4, and IFN-gamma was present in a few samples. For IL-2, sensitivity, specificity, negative and positive predictive values for acute rejection were 100, 87.2, 94.7 and 83.3%, respectively. CONCLUSIONS Cytokine analysis in fine-needle aspiration biopsy cultures supernatants is a very useful immunological screening method for kidney transplants. IL-2 synthesis on day 7 post-transplantation reliably predicted the risk of impending acute rejection during the first weeks. The cytokine pattern suggests that acute rejection is associated with Th1, stable patients with Th0/Th2, and chronic rejection with Th2 patterns.
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Affiliation(s)
- G Oliveira
- Renal Department, Hospital S. João, Porto, Portugal
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Oliveira JG, Xavier P, Neto S, Mendes AA, Guerra LE. Monocytes-macrophages and cytokines/chemokines in fine-needle aspiration biopsy cultures: enhanced interleukin-1 receptor antagonist synthesis in rejection-free kidney transplant patients. Transplantation 1997; 63:1751-6. [PMID: 9210499 DOI: 10.1097/00007890-199706270-00008] [Citation(s) in RCA: 25] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
BACKGROUND Monocytes-macrophages are found within kidney allografts during the first days after surgery, where they perform "housekeeping" tasks, participate in postreperfusion injury, and act as antigen-presenting cells, as well as become involved in the effector phase of acute rejection. They also seem to play a prominent role in chronic rejection. We quantified their presence in fine-needle aspiration biopsies and studied the growth factors that, we hypothesized, would mark the different implications of the presence of monocytes-macrophages. METHODS Fine-needle aspiration biopsies were obtained from 56 adult renal transplants and analyzed for CD14+ using the alkaline phosphatase-anti-alkaline phosphatase procedure. Thirty-three patients were studied on the production of interleukin (IL)-1 receptor antagonist (IL-1ra), IL-6, IL-8, macrophage colony-stimulating factor, monocyte chemotactic protein 1, and macrophage inflammatory protein 1alpha by aspiration biopsies cultures using enzyme-linked immunosorbent assay techniques. RESULTS CD14+ cells were present at significantly higher numbers in steroid-resistant acute rejections but also during the first days after surgery, especially if acute tubular necrosis was present. We found a significantly higher production of IL-1ra by rejection-free patients compared with acutely rejecting patients, and this difference was already established on day 7 after surgery (10+/-10.5 days before rejection). CONCLUSIONS Monocytes-macrophages are present at higher numbers in aspiration biopsies of kidney transplant patients suffering either acute tubular necrosis or steroid-resistant rejections, but they are present during the first days after transplant in stable patients, too. The production of IL-1ra is significantly up-regulated in stable patients, which suggests that monocytes-macrophages may constitute an early key factor in the down-regulation of the anti-allograft immune response.
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Affiliation(s)
- J G Oliveira
- Renal Department, Hospital S. João, Porto, Portugal
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