microRNA Expression Profile in Obesity-Induced Kidney Disease Driven by High-Fat Diet in Mice.

Obesity is one of the main causes of chronic kidney disease; however, the precise molecular mechanisms leading to the onset of kidney injury and dysfunction in obesity-associated nephropathy remain unclear. The present study aimed to unveil the kidney microRNA (miRNA) expression profile in a model of obesity-induced kidney disease in C57BL/6J mice using next-generation sequencing (NGS) analysis. High-fat diet (HFD)-induced obesity led to notable structural alterations in tubular and glomerular regions of the kidney, increased renal expression of proinflammatory and profibrotic genes, as well as an elevated renal expression of genes involved in cellular lipid metabolism. The miRNA sequencing analysis identified a set of nine miRNAs differentially expressed in the kidney upon HFD feeding, with miR-5099, miR-551b-3p, miR-223-3p, miR-146a-3p and miR-21a-3p showing the most significant differential expression between standard diet (STD) and HFD mice. A validation analysis showed that the expression levels of miR-5099, miR-551b-3p and miR-146a-3p were consistent with NGS results, while Kyoto Encyclopedia of Genes and Genomes (KEGG) and Gene Ontology (GO) enrichment analyses revealed that these three validated miRNAs modulated target genes involved in metabolic and adipocytokine pathways, fatty acid and lipid metabolism, and inflammatory, senescence and profibrotic pathways. Our results suggest that differentially expressed miRNAs play pivotal roles in the intricate pathophysiology of obesity-associated kidney disease and could potentially create novel treatment strategies to counteract the deleterious effects of obesity on kidney function.

Matrix Gla protein polymorphism rs1800802 is associated with atheroma plaque progression and with cardiovascular events in a chronic kidney disease cohort.

Background: Chronic kidney disease (CKD) is associated with increased atherosclerotic burden and higher risk for cardiovascular events (CVE). Atherosclerosis has a significant genetic component and, in CKD, it is influenced by mineral metabolism alterations. Therefore, genetic modifications of mineral metabolism-related proteins could affect atherosclerosis in CKD patients. In the present study we investigated the role of single nucleotide polymorphisms (SNPs) of the matrix gamma-carboxy glutamic acid protein (MGP) on atherosclerosis progression and CVE in a CKD cohort. Methods: A total of 2187 CKD patients from the Observatorio Nacional de Aterosclerosis en Nefrologia (NEFRONA) study were genotyped for SNPs present in the matrix gamma-carboxy glutamic acid (Gla) protein (MGP) gene. Atheromatosis was detected by vascular ultrasound. Progression of atheromatosis, defined as an increase in territories with plaque, was assessed after 24 months. Patients were followed for 48 months for CVE. Association of SNPs with plaque progression was assessed by logistic regression and their capacity to predict CVE by Cox regression. Results: Three SNPs of the MGP gene were analyzed. No association of the rs4236 or the rs1800801 SNPs was detected with any of the outcomes. However, patients homozygotes for the minor allele of the rs1800802 SNP showed higher adjusted risk for plaque progression [odds ratio 2.3 (95% confidence interval 1.06-4.9)] and higher risk of suffering a CVE [hazard ratio 2.16 (95% confidence interval 1.13-4.12)] compared with the rest of genotypes. No association of the SNP with total or dp-ucMGP levels was found in a subsample. Conclusions: The rs1800802 polymorphism of MGP is associated with plaque progression and CVE in CKD patients.

B- and T-lymphocyte attenuator could be a new player in accelerated atherosclerosis associated with chronic kidney disease.

BACKGROUND: In chronic kidney disease (CKD), cardiovascular morbi-mortality is higher than in general population. Atherosclerotic cardiovascular disease is accelerated in CKD, but specific CKD-related risk factors for atherosclerosis are unknown. METHODS: CKD patients from the NEFRONA study were used. We performed mRNA array from blood of patients free from atheroma plaque at baseline, with (n=10) and without (n=10) de novo atherosclerotic plaque development 2 years later. Selected mRNA candidates were validated in a bigger sample (n=148). Validated candidates were investigated in vivo in an experimental model of CKD-accelerated atherosclerosis, and in vitro in murine macrophages. RESULTS: mRNA array analysis showed 92 up-regulated and 67 down-regulated mRNAs in samples from CKD patients with de novo plaque development. The functional analysis pointed to a paramount role of the immune response. The validation in a bigger sample confirmed that B- and T-lymphocyte co-inhibitory molecule (BTLA) down-regulation was associated with de novo plaque presence after 2 years. However, BTLA down-regulation was not found to be associated with atherosclerotic progression in patients with plaque already present at baseline. In a model of CKD-accelerated atherosclerosis, mRNA and protein expression levels of BTLA were significantly decreased in blood samples and atheroma plaques. Plaques from animals with CKD were bigger, had more infiltration of inflammatory cells, higher expression of IL6 and IL17 and less presence of collagen than plaques from control animals. Incubation of macrophages with rat uremic serum decreased BTLA expression. CONCLUSIONS: BTLA could be a potential biomarker or therapeutic target for atherosclerosis incidence in CKD patients.

Antihypertensive Effects of an Optimized Aged Garlic Extract in Subjects with Grade I Hypertension and Antihypertensive Drug Therapy: A Randomized, Triple-Blind Controlled Trial.

The use of garlic (Allium sativum) for treating arterial hypertension has been recognized as effective for several decades. However, tolerance to treatment is low, and several technological modifications have been developed to improve its tolerability, such as the aging process at controlled temperature and humidity. This study aims to validate the antihypertensive effects of an optimized extract of aged black garlic with low doses of s-allyl-cysteine (SAC) in a Grade I hypertensive population with drug treatment. A randomized, triple-blind, placebo-controlled parallel trial was developed, where a daily supplementation with 0.25 mg/day of SAC for 12 weeks was performed. A reduction in systolic and diastolic blood pressure of 1.8 mmHg (0.7 to 4.1 95% CI) and 1.5 mmHg (0.3 to 3.0 95% CI), respectively, was observed. Similarly, an increase in blood nitric oxide (10.3 µM, 1.1 to 19.5 95% CI) and antioxidant capacity (7 × 10-3 µM TE/min, (1.2 to 13 × 10-3 95% CI) and a reduction in uric acid levels (-0.3 mg/dL, -0.5 to -0.001 95% CI) and ACE activity (-9.3 U/L; -18.4 to -0.4 95% CI) were observed. No changes in endothelial function and inflammatory cytokines were observed. It was concluded that low-dose SAC supplementation in an optimized black-garlic extract allows for an extra-significant reduction in blood pressure in a Grade I hypertensive population receiving drug treatment.

The role of immunotherapy in non-clear cell renal cell carcinoma.

The category of non-clear cell renal cell carcinoma (nccRCC) includes several clinically, histologically, and molecularly diverse entities. Traditionally, they comprise type 1 and type 2 papillary, chromophobe, unclassified, and other histologies (medullary, collecting duct carcinoma, and translocation-associated). Molecular knowledge has allowed the identification of some other specific subtypes, such as fumarate hydratase-deficient renal cell carcinoma (RCC) or succinate dehydrogenase-associated RCC. In addition, it has recognized some alterations with a possible predictive role, e.g., MET proto-oncogene receptor tyrosine kinase (MET) alterations in papillary tumors. Standard therapies for the management of advanced clear cell RCC (ccRCC), i.e., vascular endothelial growth factor receptor (VEGFR) pathway inhibitors and mammalian target of rapamycin inhibitors, have shown poorer results in nccRCC patients. Therefore, there is a need to improve the efficacy of the treatment for advanced nccRCC. Immunotherapy, especially immune checkpoint inhibitors (ICIs) targeting programmed death 1/programmed death ligand 1 and cytotoxic T-lymphocyte associated protein 4 (CTLA-4), has demonstrated a significant survival benefit in several malignant neoplasias, including ccRCC, with a proportion of patients achieving long survival. The combinations of ICI or ICI + VEGFR tyrosine kinase inhibitors (TKIs) are the standard of care in advanced ccRCC. Unfortunately, major pivotal trials did not include specific nccRCC populations. In recent years, several studies have retrospectively or prospectively evaluated ICIs alone or in combination with another ICI or with TKIs in nccRCC patients. In this article, we review data from available trials in order to elucidate clinical and molecular profiles that could benefit from immunotherapy approaches.

The Increase in FGF23 Induced by Calcium Is Partially Dependent on Vitamin D Signaling.

BACKGROUND: Increased FGF23 levels are an early pathological feature in chronic kidney disease (CKD), causing increased cardiovascular risk. The regulation of FGF23 expression is complex and not completely understood. Thus, Ca2+ has been shown to induce an increase in FGF23 expression, but whether that increase is mediated by simultaneous changes in parathyroid hormone (PTH) and/or vitamin D is not fully known. METHODS: Osteoblast-like cells (OLCs) from vitamin D receptor (VDR)+/+ and VDR-/- mice were incubated with Ca2+ for 18 h. Experimental hypercalcemia was induced by calcium gluconate injection in thyro-parathyroidectomized (T-PTX) VDR +/+ and VDR-/- mice with constant PTH infusion. RESULTS: Inorganic Ca2+ induced an increase in FGF23 gene and protein expression in osteoblast-like cells (OLCs), but the increase was blunted in cells lacking VDR. In T-PTX VDR +/+ and VDR-/- mice with constant PTH levels, hypercalcemia induced an increase in FGF23 levels, but to a lower extent in animals lacking VDR. Similar results were observed in FGF23 expression in bone. Renal and bone 1α-hydroxylase expression was also modulated. CONCLUSIONS: Our study demonstrates that Ca2+ can increase FGF23 levels independently of vitamin D and PTH, but part of the physiological increase in FGF23 induced by Ca2+ is mediated by vitamin D signaling.

Elimination of Vitamin D Signaling Causes Increased Mortality in a Model of Overactivation of the Insulin Receptor: Role of Lipid Metabolism.

Vitamin D (VD) deficiency has been associated with cancer and diabetes. Insulin signaling through the insulin receptor (IR) stimulates cellular responses by activating the PI3K/AKT pathway. PTEN is a tumor suppressor and a negative regulator of the pathway. Its absence enhances insulin signaling leading to hypoglycemia, a dangerous complication found after insulin overdose. We analyzed the effect of VD signaling in a model of overactivation of the IR. We generated inducible double KO (DKO) mice for the VD receptor (VDR) and PTEN. DKO mice showed severe hypoglycemia, lower total cholesterol and increased mortality. No macroscopic tumors were detected. Analysis of the glucose metabolism did not show clear differences that would explain the increased mortality. Glucose supplementation, either systemically or directly into the brain, did not enhance DKO survival. Lipidic liver metabolism was altered as there was a delay in the activation of genes related to ß-oxidation and a decrease in lipogenesis in DKO mice. High-fat diet administration in DKO significantly improved its life span. Lack of vitamin D signaling increases mortality in a model of overactivation of the IR by impairing lipid metabolism. Clinically, these results reveal the importance of adequate Vitamin D levels in T1D patients.

PTEN Deletion in Adult Mice Induces Hypoinsulinemia With Concomitant Low Glucose Levels.

The PI3K/AKT pathway, negatively regulated by PTEN, plays a paramount role in glucose metabolism regulation due to its activation by the insulin receptor signaling pathway. We generated a PTEN-KO mouse to evaluate the systemic effect of the overactivation of the PI3K/AKT pathway in insulin signaling and glucose homeostasis. Our results demonstrate that PTEN-KO mice show very low glucose levels in the fasted state, which poorly respond to glucose and pyruvate administration. Insulinemia decreased without alterations in pancreatic islets. Among the possible reasons, we uncover the deregulation of the expression of proximal tubule glucose transporter and consequent glycosuria. Moreover, we evidence an altered activation of hepatic gluconeogenesis-related genes. In addition, the expression of several genes related to ß-oxidation showed a delayed or even absent response to fasting, suggesting that the lack of PTEN not only impairs glucose metabolism but also slows down the use of lipids as a metabolic fuel. We conclude that the inducible full PTEN-KO mice could be a good model to study the metabolic interactions between glycidic and lipidic metabolism in hypoinsulinemic hypoglycemia and that PTEN could be an important mediator in the disease and/or a potential drug target.

Relationship between immunoglobulin A1 lectin-binding specificities, mesangial C4d deposits and clinical phenotypes in immunoglobulin A nephropathy.

BACKGROUND: The reason why mesangial C4d deposits are detected in only certain biopsies of immunoglobulin A nephropathy (IGAN) remains unclear. We analyse the association between IgA glycosylation patterns, mesangial C4 deposition and clinical phenotypes in IgAN. METHODS: This cross-sectional study included 145 patients with idiopathic IgAN. We measured the serum levels of three different IgA1 lectin-binding specificities using enzyme-linked immunosorbent assays with and without treatment with neuraminidase and we analysed the relationship between these glycoforms, C4d mesangial deposits and clinical phenotypes. RESULTS: C4d-positive versus Cd4-negative patients had higher proteinuria [median 3.1 g/g (0.9-4.2) versus 1.8 (1-2.2); P = 0.000], haematuria [223 cells/µL (32-278) versus 99 (25-186); P = 0.000] and higher levels of IgA binding to neuraminidase untreated Helix aspersa (HA IgA1 neu-; 150.6 ± 52 U versus 96.2 ± 64.1; P = 0.000), neuraminidase untreated Helix pomatia (HPA IgA1 neu-; 0.34 ± 0.15 U versus 0.27 ± 0.13; P = 0.04), Triticum vulgaris (TV IgA1; 85.1 ± 31.7 U versus 42.2 ± 26.9; P = 0.000) and Canavalia ensiformis (ConA IgA1; 32.5 ± 18 U versus 16.7 ± 9.38; P = 0.000). The levels of HA IgA1 neu-, HPA IgA1 neu-, TV IgA1 and ConA IgA1 were all associated with the mesangial deposition of C4d, extracapillary proliferation and acute kidney injury. In receiver operating characteristics curves, HA IgA1 neu-, HPA IgA1 neu-, TV IgA1 and ConA IgA1 significantly discriminated between C4d-positive ad C4d-negative biopsies. In logistics models, TV IgA1 and ConA IgA1 were the only independent predictors of mesangial C4d deposits. CONCLUSIONS: In IgAN, the severity of the disease is associated with the level of IgA exposing N-acetyl-d-galactosamine, N-acetyl-d-glucosamine or mannose, whereas C4d deposits are only associated with elevated levels of IgA1 glycoforms exhibiting glycan residues with specificity for mannose and N-acetyl-d-glucosamine binding lectins.

Monitoring anti-PLA2R antibody titres to predict the likelihood of spontaneous remission of membranous nephropathy.

BACKGROUND: In anti-phospholipase A2 receptor (PLA2R) membranous nephropathy (MN) there is controversy whether spontaneous remission (SR) can be predicted using a single titre or by assessing the dynamic changes in anti-PLA2R antibody (ab) titres. The study objective was to identify the optimal dynamics of anti-PLA2Rab titres to predict SR in MN. METHODS: A total of 127 nephrotic patients with anti-PLA2R-MN were prospectively followed up for 6 months under conservative treatment. Anti-PLA2Rabs and proteinuria were assessed at diagnosis and monthly thereafter. The primary endpoint (PEP) was a reduction of proteinuria ≥50% at 6 months. Logistic models with baseline and evolutive anti-PLA2Rab titres were developed to predict the PEP. RESULTS: A total of 28 patients (22%) reached the PEP. These patients were more frequently female and had significantly lower baseline proteinuria and anti-PLA2Rab titres. An anti-PLA2R titre ≤97.5 RU/mL at diagnosis had a sensitivity of 71% and a specificity of 81% to predict the PEP. The model including baseline anti-PLA2Rabs and a reduction ≥15% at 3 months predicted the PEP with a sensitivity of 93% and a specificity of 80%, with an area under the curve that was significantly greater than that obtained with relative changes of proteinuria in the same period of time {odds ratio [OR] 0.95 [95% confidence interval (CI) 0.91-0.98 versus OR 0.79 [95% CI 0.70-0.88], respectively; P = 0.0013}. CONCLUSIONS: Combining the baseline anti-PLA2Rab titres with their relative changes at 3 months after diagnosis gives the earliest prediction for achieving a reduction of urinary protein excretion ≥50% at 6 months in MN, thereby shortening the observation period currently recommended to make individualized decisions to start immunosuppressive therapy.

[Prevalence and factors associated with partner violence among pregnant and puerperal women in Santiago, Chile]. / Violencia contra la mujer durante la gestación y postparto infligida por su pareja en Centros de Atención Primaria de la zona norte de Santiago, Chile.

BACKGROUND: Violence against women (VAW) is a violation of women's fundamental rights and special attention must be paid during the gestational and postpartum period. AIM: To determine the prevalence of violence against women attending antenatal and postpartum controls in Primary Health Centers. MATERIAL AND METHOD: The Woman Abuse Screening Tool (WAST) for early detection of VAW was applied to 279 pregnant and 102 puerperal women attending five public primary health centers in metropolitan Santiago. RESULTS: The prevalence ofviolence against pregnant and puerperal women was 5.7 and 5.9%, respectively. In both groups, the factors associated with a greater risk of violence were being immigrants, a history of domestic violence, not having a supportive partner and alcohol consumption by the partner. CONCLUSIONS: Violence against these women is a multifactorial, complex and structural phenomenon, which involves the victim, the abuser and the entire social system. Primary health care level and health professionals can be key elements applying early detection strategies, timely referral mechanisms and bringing emotional support for victims.

Violencia contra la mujer durante la gestación y postparto infligida por su pareja en Centros de Atención Primaria de la zona norte de Santiago, Chile / Prevalence and factors associated with partner violence among pregnant and puerperal women in Santiago, Chile

Background: Violence against women (VAW) is a violation of women's fundamental rights and special attention must be paid during the gestational and postpartum period. Aim: To determine the prevalence of violence against women attending antenatal and postpartum controls in Primary Health Centers. Material and Method: The Woman Abuse Screening Tool (WAST) for early detection of VAW was applied to 279 pregnant and 102 puerperal women attending five public primary health centers in metropolitan Santiago. Results: The prevalence ofviolence against pregnant and puerperal women was 5.7 and 5.9%, respectively. In both groups, the factors associated with a greater risk of violence were being immigrants, a history of domestic violence, not having a supportive partner and alcohol consumption by the partner. Conclusions: Violence against these women is a multifactorial, complex and structural phenomenon, which involves the victim, the abuser and the entire social system. Primary health care level and health professionals can be key elements applying early detection strategies, timely referral mechanisms and bringing emotional support for victims.

Association between urinary biomarkers and disease progression in adults with autosomal dominant polycystic kidney disease.

BACKGROUND: Height-adjusted total kidney volume (htTKV) is considered as the best predictor of kidney function in patients with autosomal dominant polycystic kidney disease (ADPKD), but its limited predictive capacity stresses the need to find new biomarkers of ADPKD progression. The aim of this study was to investigate urinary biomarkers of ADPKD progression. METHODS: This observational study included ADPKD patients, and two comparator groups of ischaemic and non-ischaemic kidney injury: benign nephroangiosclerosis patients and non-ischaemic chronic kidney disease (CKD) patients. Proteinuria, htTKV and urinary levels of molecules are associated with ischaemia and/or tubular injury. The slope of estimated glomerular filtration rate (eGFR) was used as a dependent variable in univariate and multivariate models of kidney function decline. RESULTS: The study included 130 patients with ADPKD, 55 with nephroangiosclerosis and 40 with non-ischaemic CKD. All patients had increased urinary concentrations of biomarkers associated with tubular lesions (liver fatty acid-binding protein, kidney injury molecule-1, ß2-microglobulin) and molecules overexpressed under ischaemic conditions [hypoxia-inducible factor-1α, vascular endothelial growth factor (VEGF) and monocyte chemoattractant protein-1 (MCP-1)]. These biomarkers correlated positively with htTKV and negatively with the eGFR slope. htTKV was the single best predictor of the eGFR slope variability in univariate analyses. However, a multivariate model including urinary levels of ß2-microglobulin, MCP-1 and VEGF improved the capacity to predict the decline of eGFR in ADPKD patients compared with htTKV alone. CONCLUSIONS: The urinary levels of molecules associated with either renal ischaemia (VEGF and MCP-1) or tubular damage (ß2-microglobulin) are associated with renal function deterioration in ADPKD patients, and are, therefore, candidates as biomarkers of ADPKD progression.

Bienestar psicológico y psicopatología: estudio de un caso de intervención en el equipo técnico y deportistas de un Club de Tenis / Psychological wellbeing and psychopathology: a case study of intervention with coaching staff and players at a tennis club

Como consecuencia de la intensa participación en el deporte, los atletas no solo pueden experimentar sentimientos positivos de bienestar sino que también experimentar cantidades significativas de estrés que pueden contribuir a la psicopatología. La investigación sobre la psicopatología en el deporte es un área de estudio relativamente reciente y las investigaciones se han focalizado más estrechamente sobre algunos tópicos de estudio. El propósito de esta investigación fue dar cuenta de una intervención psicológica que se desarrollo una vez que se detecto que uno de los tenistas del equipo deportivo sufre un episodio maníaco, dado que dicha situación afectó la organización deportiva y la estabilidad emocional de entrenadores y grupo de jugadores. El enfoque de la intervención estuvo dirigida al equipo técnico y deportistas y se baso en el Modelo de Bienestar Psicológico de Carol Ryff (AU)

Due to their intensive sporting activities, athletes might not only experience positive outcomes and a state of psychological wellbeing but also a considerable amount of stress which can contribute to psychopathological states. Research into psychopathology in sport is a relatively recent field of study and investigations have focused rather narrowly on a few limited areas of study. The purpose of this study was to examine the effectiveness of psychological intervention after a young tennis player experienced a manic episode which affected the emotional wellbeing of other individuals from the same sporting environment, including the coaches and other athletes. The intervention, directed at the coaching staff and athletes, was based on the Psychological Wellbeing Model developed by Carol Ryff (AU)

Autonomy, coping strategies and psychological well-being in young professional tennis players.

This research aimed to analyze the role of Psychological Well-being factors in young professional tennis players, assigning special attention to their preferred coping strategies and perceived autonomy that specifically contribute to Psychological Well-being. The conceptual framework utilized for this study was Ryff's Psychological Well-being multidimensional model in order to focus our understanding towards how environment demands of professional sport affect athletes Psychological Well-being. Participants were 155 male professional tennis players with a mean age of 14.61 (SD = 1.86) engaged in South American Tennis Federation tournaments. Instruments utilized were Psychological Well Being Scale EBP, Díaz et al., 2006, Sport Coping Approach Questionnary Spanish version, ACSQ-1 (Kim, Duda, Tomas, & Balaguer, 2003) and Sport Perceived Autonomy Scale, Spanish version (Balaguer, Castillo, & Duda, 2008). Our research revealed that the greater autonomy young athletes perceive while being engaged in professional sport was because of the coping strategies they utilized such as active planning, cognitive restructuring, emotional calmness and seeking of social support. Results confirmed also that the greater perceived autonomy was explaining athletes high levels of Psychological Well-being.

Autonomy, coping strategies and psychological well-being in young professional tennis players

This research aimed to analyze the role of Psychological Well-being factors in young professional tennis players, assigning special attention to their preferred coping strategies and perceived autonomy that specifically contribute to Psychological Well-being. The conceptual framework utilized for this study was Ryff’s Psychological Well-being multidimensional model in order to focus our understanding towards how environment demands of professional sport affect athletes Psychological Well-being. Participants were 155 male professional tennis players with a mean age of 14.61 (SD = 1.86) engaged in South American Tennis Federation tournaments. Instruments utilized were Psychological Well Being Scale EBP, Díaz et al., 2006, Sport Coping Approach Questionnary Spanish version, ACSQ-1 (Kim, Duda, Tomas, & Balaguer, 2003) and Sport Perceived Autonomy Scale, Spanish version (Balaguer, Castillo, & Duda, 2008). Our research revealed that the greater autonomy young athletes perceive while being engaged in professional sport was because of the coping strategies they utilized such as active planning, cognitive restructuring, emotional calmness and seeking of social support. Results confirmed also that the greater perceived autonomy was explaining athletes high levels of Psychological Well-being (AU)

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Estrategias de afrontamiento y bienestar psicológico en jóvenes tenistas de competición / Coping strategies and psychological well-being in adolescent competition tennis player

El propósito de nuestra investigación fue examinar los tipos de estrategias preferidas por tenistasadolescentes con atención a la efectividad percibida de las estrategias y las consecuencias en el estado de bienestar de losjugadores. Los participantes en la investigación fueron 26 adolescentes tenistas de una edad media de 15 años participandoa un nivel muy alto en Chile. El cuestionario de Aproximación al Afrontamiento en el Deporte (ACSQ-1) fue utilizado paramedir la manera de aproximación al afrontamiento y la evaluación del bienestar psicológico se realizó a través la Escala deBienestar Psicológico. Los resultados indicaron que la estrategia calma emocional fue la estrategia favorecida por lostenistas por lo general. Al mismo tiempo, la calma emocional y la planificación activa fueron las estrategias evaluadas másaltamente en beneficiar el rendimiento de ellos. Otro resultado importante fue que los tenistas que menos se autoaceptaronutilizaron más la estrategia de calma emocional y que aquellos con más autoaceptación utilizaron en mayor frecuencia laestrategia de retraimiento mental. Otro hallazgo fue que los jóvenes que declaran mayor dominio del entorno utilizanmayoritariamente el retraimiento mental como estrategia de afrontamiento. Los resultados indicaron que diferenciasindividuales existen en la preferencia para estrategias de afrontamiento en jóvenes tenistas y que las estrategias tienenefectos diferenciados en el bienestar (AU)

The study aimed to examine the types of coping strategies preferred by adolescent competition tennisplayers and specific attention was paid to understanding these strategies’ perceived effectiveness and the coping strategy’ssubsequent effects on well-being. The sample for the study was made up of 27 adolescent tennis players with a mean ageof 15 years who participate at a high competitive level. The Approach to Coping in Sport Questionnaire (ACSQ-1) was used tomeasure the coping strategy used by the players and their psychological well-being was assessed by the Psychological Well-Being Scale. The results indicated that the emotional calming strategy was the tennis players’ preferred coping strategy in general. At the same time, emotional calming and active planning were the strategies the players’ considered to be the mosteffective in terms of improving performance. An additional finding was that players with lower levels of self-acceptancerelied more heavily on the emotional calming strategy and those with higher levels of self-acceptance used mentaldistancing more frequently. Players who perceived greater environmental control relied more heavily upon mentaldistancing as their preferred coping strategy. These findings indicate that individual differences were present in terms ofpreferred coping strategies and that the strategies produced differentiated effects on well-being for young competitiontennis players (AU)

Estado del arte, y perspectiva actual del concepto de bienestar psicológico en psicología del deporte / State of the art and current perspective of psychological well-being in sport psychology

La Teoría del bienestar Psicológico (Ryff, 1989) constituye uno de los eslabones fundamentales de la psicología positiva, la cual ha estado en marcada principalmente entre dos perspectivas que explican un modelo de mundo y un modelo de sujeto (Díaz, 2006). Ryff (1989) enuncia su modelo bautizado como “Modelo Integrado de Desarrollo Personal” (Integrated Model of Personal Develoment). Considerando que el deporte y la vida deportiva son actividades que requieren ser resistentes, alta capacidad volitiva, autonomía, poseer desafíos, plantearse objetivos, cumplir metas, crecer como persona, adaptarse a los distintos ambientes y cambios y para ello, relacionarse positivamente con el entorno, ser saludable, y mantener un control sobre lo que se hace, es por eso que nos detendremos en el concepto, y el análisis del bienestar psicológico y sus implicancias en el deporte y la psicología del deporte, desde el enfoque de Carol Ryff.

Well-being psychology theory (Ryff, 1989) is one of the essential links of positive psychology, which has been mainly framed between two perspectives that explain a model of world and a model of person (Díaz, 2006). Ryff (1989) states her model baptized as “Integrated Model of Personal Development”. Considering that sport, and life cycle sport are activities that demand to be strong, to have superior volitive skills, autonomy, be challenging, set up objectives, meet aims, grow as person, adapt to different environments and changes, and for that purpose, establish positive relationship with the others, be healthy and maintain self control, is for that reason we will stop into this concept and the analysis of psychological wellbeing and its involvement in sport, and sport psychology, from Carol Ryff perspective.