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1.
Heliyon ; 10(7): e28712, 2024 Apr 15.
Article in English | MEDLINE | ID: mdl-38689957

ABSTRACT

Aims: The aims of this study were to verify if a 5-week cognitive-motor training (CMT) using FitlightsTM induced changes in young adult judo athletes compared to a non-intervention group. Specifically, it was verified if CMT influenced executive functions (EFs), physical fitness and brain-derived neurotrophic factor (BDNF) levels. Additionally, athletes' competitive results were compared between groups. Method: Twenty-seven athletes (14 males and 13 females; age = 19.5 ± 2.0 years) were assigned to the Fitlight (FG) and control (CG) groups which performed 5 weeks of CMT, respectively, including 25 min per day of Fitlight training or traditional judo practice. All participants performed cognitive (flanker task and forward/backward digit span) and fitness tests (counter movement jump, handgrip test, dynamic and isometric chin up). In addition, BDNF was collected by saliva sampling and competitive results after the intervention period were considered. Results: RM-ANOVA showed significant differences in FG for the accuracy of flanker (p = 0.028) and backward digit span (p < 0.001). Moreover, significant differences in FG were found for relative dynamic chin up (p = 0.027) and counter movement jump (p = 0.05). In addition, a significant difference in FG was found for competitive results after the intervention period (p < 0.01).No significant differences were found for BDNF and other cognitive and fitness measures (p > 0.05). Conclusion: A 5-week judo-specific CMT improved EFs and motor performance in élite judo athletes. It seems that CMT with Fitlight™ could be considered an additional support to coaches during the training period.

2.
J Endocrinol Invest ; 45(7): 1289-1295, 2022 Jul.
Article in English | MEDLINE | ID: mdl-35122630

ABSTRACT

BACKGROUND: Hypoparathyroidism (HypoP) is a rare endocrine condition characterized by hypocalcaemia and hyperphosphatemia, as a consequence of absent or improperly low parathyroid hormone (PTH) levels. Patients affected by HypoP have a clinical condition often characterized by paresthesias and muscle spasms, as well as long-term consequences as nephrolithiasis, extraskeletal calcification, and fractures. In the literature, likely due to these symptoms, few data exist regarding the appropriate physical activity (PA) in subjects suffering from HypoP. PURPOSE: This review evaluates the literature on exercise-based approaches to the management of individuals affected by HypoP and evaluates: (1) the effects of physical exercise on muscle cramps and other clinical symptoms; (2) the effects of exercise on PTH and calcium level; (3) the most suitable clinical exercise testing; and (4) the most suitable exercise combination. METHODS AND RESULTS: A systematic search was conducted using the databases MEDLINE, Google Scholar using "hypoparathyroidism AND Physical Activity", "Training AND hypoparathyroidism", "Exercise AND muscle cramps", "Exercise AND Fatigue" as keywords. In addition, references list from the included articles were searched and cross-checked to identify any further potentially eligible studies. A total of 50 manuscripts were found among which 39 manuscripts were selected. A few clinical studies have been performed in HypoP patients to evaluate PA training protocols. CONCLUSION: Although further research is needed to draw solid conclusions regarding best PA protocols in subjects affected by HypoP, a PA protocol has been proposed within the manuscript to encourage patients to attempt exercise to improve their clinical conditions and their quality of life.


Subject(s)
Hypoparathyroidism , Parathyroid Hormone , Exercise , Humans , Hypoparathyroidism/diagnosis , Hypoparathyroidism/therapy , Muscle Cramp , Quality of Life
3.
Chaos ; 30(3): 033135, 2020 Mar.
Article in English | MEDLINE | ID: mdl-32237785

ABSTRACT

The present paper concerns a new description of changing in metabolism during incremental exercises test that permit an individually tailored program of exercises for obese subjects. We analyzed heart rate variability from RR interval time series (tachogram) with an alternative approach, the recurrence quantification analysis, that allows a description of a time series in terms of its dynamic structure and is able to identify the phase transitions. A transition in cardiac signal dynamics was detected and it perfectly reflects the aerobic threshold, as identified by gas exchange during an incremental exercise test, revealing the coupling from the respiratory system toward the heart. Moreover, our analysis shows that, in the recurrence plot of RR interval, it is possible to identify a specific pattern that allows to identify phase transitions between different dynamic regimes. The perfect match of the occurrence of the phase transitions with changes observed in the VO2 consumption, the gold standard approach to estimate thresholds, strongly supports the possibility of using our analysis of RR interval to detect metabolic threshold. In conclusion, we propose a novel nonlinear data analysis method that allows for an easy and personalized detection of thresholds both from professional and even from low-cost wearable devices, without the need of expensive gas analyzers.


Subject(s)
Exercise Test , Heart Rate , Obesity , Oxygen Consumption , Adult , Female , Humans , Male , Middle Aged , Obesity/blood , Obesity/physiopathology
4.
J Endocrinol Invest ; 41(4): 465-473, 2018 Apr.
Article in English | MEDLINE | ID: mdl-29080964

ABSTRACT

PURPOSE: Evaluation of the effects of an individualized home-based unsupervised aerobic training on body composition, physical and physiological parameters in female and male obese adults. METHODS: Two hundred and twenty obese adults (age 47.9 ± 12.4 years; BMI 38.0 ± 7.2 kg/m2) entered the 4-month training program. Body composition, physiological and functional capacities were assessed pre- and post-intervention. All subjects were requested to perform unsupervised aerobic training with the intensity based on heart rate, walking speed and OMNI-RPE score corresponding to the individual ventilatory threshold for at least 5 days/week. RESULTS: After 4-month study period, 40% of patients completed the protocol, 24% had high compliance (HC) (exercise ≥ 3 days/week), while 16% had low compliance (LC) to exercise prescription (exercise < than 3 days/week). In HC group, a significant improvement of body composition variables after training was performed. Moreover, oxygen uptake and metabolic equivalent at peak significantly increased after training. Six-minute walking test (6MWT) distance significantly increased while heart rate during 6MWT was significantly lower after training. No significant differences were found in LC group between pre- and post-intervention in all variables. Interestingly, gender does not influence the effects of training. CONCLUSIONS: Our results indicate that subjects, independent of gender, with high compliance to the aerobic training based on a new individualized method can achieve a significant reduction in weight loss and also an improvement in physical and physiological parameters. This innovative personalized prescription could be a valuable tool for exercise physiologist, endocrinologists, and nutritionists to approach and correct life style of obese subjects.


Subject(s)
Body Composition , Energy Metabolism , Exercise/physiology , Obesity/rehabilitation , Precision Medicine , Weight Loss , Adult , Body Mass Index , Female , Humans , Male , Middle Aged , Obesity/physiopathology , Prognosis
5.
Int J Sports Med ; 37(4): 324-8, 2016 Apr.
Article in English | MEDLINE | ID: mdl-26667927

ABSTRACT

Our purpose was to verify if the use of the new AquaTrainer(®) respiratory snorkel lead to an increase of front crawl hydrodynamic drag and whether the constraint of using an adapted turning technique influences its corresponding turning time. 12 swimmers performed 2 (without and with snorkel) 12×25 front crawl repetitions from low to maximal velocity on the measuring active drag system. Complementarily, 3 swimming turns were compared: open turn with snorkel, tumble turn and open turn without snorkel. Drag values were similar without vs. with snorkel at 0.9, 1.1, 1.3, 1.5 and 1.7 m.s(-1) velocities: 15.84 ±5.32 vs. 16.18±4.81, 25.60±6.69 vs. 26.03±6.17, 38.37±8.04 vs. 38.88±7.56, 54.64±10.06 vs. 55.08±9.55, 74.77±14.09 vs. 74.92±13.14 N, (respectively, p≥0.05), and high agreement between conditions was observed (p<0.01). Front crawl swimming with snorkel using the open turn implied an increase in turning time of 14.2 and 5.1% than the tumble turn and open turn without the apparatus (p<0.01). AquaTrainer(®) snorkel does not lead to an increase in active drag during front crawl performed at a large range of velocities and, consequently, the metabolic energy necessary to overcome total drag will not be affected. However, turning with it requires an additional time that should be taken into account in scientific research and training conditions.


Subject(s)
Hydrodynamics , Oximetry/instrumentation , Swimming/physiology , Adolescent , Adult , Biomechanical Phenomena , Humans , Young Adult
6.
Cell Death Differ ; 22(10): 1687-99, 2015 Oct.
Article in English | MEDLINE | ID: mdl-26021297

ABSTRACT

Accumulating evidence underscores the T-cell immune synapse (IS) as a site of intense vesicular trafficking, on which productive signaling and cell activation crucially depend. Although the T-cell antigen receptor (TCR) is known to exploit recycling to accumulate to the IS, the specific pathway that controls this process remains to be elucidated. Here we demonstrate that the small GTPase Rab29 is centrally implicated in TCR trafficking and IS assembly. Rab29 colocalized and interacted with Rab8, Rab11 and IFT20, a component of the intraflagellar transport system that regulates ciliogenesis and participates in TCR recycling in the non-ciliated T cell, as assessed by co-immunoprecipitation and immunofluorescence analysis. Rab29 depletion resulted in the inability of TCRs to undergo recycling to the IS, thereby compromizing IS assembly. Under these conditions, recycling TCRs accumulated in Rab11(+) endosomes that failed to polarize to the IS due to defective Rab29-dependent recruitment of the dynein microtubule motor. Remarkably, Rab29 participates in a similar pathway in ciliated cells to promote primary cilium growth and ciliary localization of Smoothened. These results provide a function for Rab29 as a regulator of receptor recycling and identify this GTPase as a shared participant in IS and primary cilium assembly.


Subject(s)
Cilia/physiology , Immunological Synapses , Receptors, Antigen, T-Cell/metabolism , T-Lymphocytes/immunology , rab1 GTP-Binding Proteins/physiology , Cell Growth Processes , Cilia/metabolism , Cilia/ultrastructure , Humans , Protein Transport , T-Lymphocytes/enzymology , T-Lymphocytes/ultrastructure , rab GTP-Binding Proteins
7.
Scand J Med Sci Sports ; 25(3): e331-8, 2015 Jun.
Article in English | MEDLINE | ID: mdl-25134779

ABSTRACT

To examine the influence of different types of exertion on immediate and delayed attention in 116 primary school children divided in three groups of exertion [cognitive exertion - CE (school curricular lesson), physical exertion - PE (traditional physical education lesson), mixed cognitive and physical exertion - CPE (coordinative physical education lesson)]. CPE was the combination of physical load due to the practice of physical exercises and of cognitive load requested to perform movement-based problem solving tasks requiring accurate timing, temporal estimations, temporal production, and spatial adjustments. Children's attentional capacity was tested before (pre) and after (at 0 min and at 50 min post) a CE, a PE, or a CPE lesson, using the d2-test of attention, and analyzed using a 3 × 3 × 2 mixed analysis of covariance with exertion type and time as within factors, gender as between factor, and baseline data as covariate. Effect sizes were calculated as partial eta squared (ƞ(2)). Results showed that participants' attentional performance was significantly affected by exertion type (P < 0.0001), by time (P < 0.0001) and by exertion type × time interactions (P < 0.0001). The effect sizes ranged from medium (0.039) to large (0.437). Varying the type of exertion has different beneficial influences on the level of attention in school children.


Subject(s)
Attention/physiology , Motor Activity/physiology , Physical Education and Training , Physical Exertion/physiology , Students , Child , Cognition , Exercise , Female , Humans , Male , Schools
8.
Int J Sports Med ; 35(12): 1030-6, 2014 Nov.
Article in English | MEDLINE | ID: mdl-24892654

ABSTRACT

Cardiorespiratory response in swimming has been used to better understand aerobic performance, especially by assessing oxygen uptake (VO2). The current study aimed to compare different VO2 time-averaging intervals throughout low to severe swimming intensities, hypothesizing that VO2 values are similar for different time averages at low to moderate and heavy swimming intensities, but not for the severe domain. 20 male trained swimmers completed an incremental protocol of 7×200 m until exhaustion (0.05 m/s increments and 30 s intervals). VO2 was measured by a portable gas analyser connected to a snorkel system. 6 time average intervals (breath-by-breath, 5, 10, 15, 20 and 30 s) were compared for all the protocol steps. Breath-by-breath and 5 s average exhibited higher VO2 values than averages≥10 s for all swimming intensities (P≤0.02; partial η(2)≤0.28). VO2 values did not differ between 10, 15, 20 and 30 s averages throughout the incremental protocol (P>0.05; partial η(2)≤0.05). Furthermore, 10 and 15 s averages showed the lowest VO2 mean difference (0.19 mL( · )kg(-1 · )min(-1)). For the 6 time average intervals analysed, 10 and 15 s averages were those that showed the lowest changes on VO2 values. We recommended the use of 10 and 15 s time averaging intervals to determine relevant respiratory gas exchange parameters along a large spectrum of swimming intensities.


Subject(s)
Oxygen Consumption/physiology , Pulmonary Gas Exchange/physiology , Swimming/physiology , Adolescent , Adult , Heart Rate , Humans , Lactic Acid/blood , Male , Young Adult
9.
Cell Death Dis ; 5: e1068, 2014 Feb 20.
Article in English | MEDLINE | ID: mdl-24556683

ABSTRACT

Shc (Src homology 2 domain containing) adaptors are ubiquitous components of the signaling pathways triggered by tyrosine kinase-coupled receptors. In lymphocytes, similar to other cell types, the p52 and p66 isoforms of ShcA/Shc participate in a self-limiting loop where p52Shc acts as a positive regulator of antigen receptor signaling by promoting Ras activation, whereas p66Shc limits this activity by competitively inhibiting p52Shc. Based on the fact that many signaling mediators are shared by antigen and chemokine receptors, including p52Shc, we have assessed the potential implication of p66Shc in the regulation of B-cell responses to chemokines, focusing on the homing receptors CXCR4 (C-X-C chemokine receptor type 4) and CXCR5 (C-X-C chemokine receptor type 5). The results identify p66Shc as a negative regulator of the chemotactic responses triggered by these receptors, including adhesion, polarization and migration. We also provide evidence that this function is dependent on the ability of p66Shc to interact with the chemokine receptors and promote the assembly of an inhibitory complex, which includes the phosphatases SHP-1 (Src homology phosphatase-1) and SHIP-1 (SH2 domain-containing inositol 5'-phosphatase-1), that results in impaired Vav-dependent reorganization of the actin cytoskeleton. This function maps to the phosphorylatable tyrosine residues in the collagen homology 1 (CH1) domain. The results identify p66Shc as a negative regulator of B-cell chemotaxis and suggest a role for this adaptor in the control of B-cell homing.


Subject(s)
B-Lymphocytes/metabolism , Chemotaxis, Leukocyte , Receptors, CXCR4/metabolism , Receptors, CXCR5/metabolism , Shc Signaling Adaptor Proteins/metabolism , Animals , Cell Adhesion , Cell Line , Cytoskeleton/metabolism , Humans , Inositol Polyphosphate 5-Phosphatases , Mice , Mice, 129 Strain , Mice, Knockout , Phosphatidylinositol 3-Kinase/metabolism , Phosphatidylinositol-3,4,5-Trisphosphate 5-Phosphatases , Phosphoric Monoester Hydrolases/metabolism , Phosphorylation , Protein Structure, Tertiary , Protein Tyrosine Phosphatase, Non-Receptor Type 6/metabolism , Proto-Oncogene Proteins c-vav/metabolism , Shc Signaling Adaptor Proteins/deficiency , Signal Transduction , Src Homology 2 Domain-Containing, Transforming Protein 1 , Time Factors , Transfection , Tyrosine , src-Family Kinases/metabolism
10.
J Endocrinol Invest ; 37(1): 13-24, 2014 Jan.
Article in English | MEDLINE | ID: mdl-24464446

ABSTRACT

BACKGROUND: Few and conflicting data on the acute adaptive role of the hypothalamic-pituitary-testicular (HPT) axis to sub-maximal endurance exercise exist. AIMS: To investigate the acute HPT axis responses to standardized endurance exercises in a laboratory setting and the correlations between testosterone and classic adaptive hormones variations. SUBJECTS AND METHODS: 12 healthy male volunteers were recruited for this experimental study. Serum PRL, GH, ACTH, LH, cortisol, DHEAS, testosterone [total (TT), calculated free (cFT) and bioavailable (cBioT)], SHBG, and respective ratios, were evaluated before and after a 30-min sub-maximal exercise on cycle ergometer at individual anaerobic threshold (IAT) and a maximal exercise until exhaustion. Blood samples were collected before exercise (30, 15 min and immediately before), immediately after and at different time points during recovery (+15, +30 and +60 min) for hormones assays. Oxygen consumption and lactate concentration were evaluated. RESULTS: Testosterone (TT, cFT and cBioT) acutely increased in all volunteers after both exercises. Testosterone increased in parallel to GH after both exercises and to cortisol only after maximal exercise. Differently from other increased hormones, testosterone increases were not correlated to exercise-intensity-related variables. The anabolic/catabolic steroids ratios were higher after sub-maximal exercise, compared to maximal. CONCLUSIONS: A 30-min sub-maximal endurance exercise acutely increased serum testosterone similarly to maximal exercise, but without cortisol increases. Exercise-related testosterone peaks should be considered adaptive phenomena, but few data on their short- and long-term effects exist. Investigations on the mechanisms of adaptation to exercise in active individuals with physiological or pathological hypo-testosteronemia are warranted.


Subject(s)
Exercise/physiology , Hypothalamo-Hypophyseal System/physiology , Physical Endurance/physiology , Testis/physiology , Testosterone/blood , Adult , Exercise Test , Humans , Lactic Acid/blood , Male , Oxygen Consumption/physiology , Pituitary Hormones/blood
11.
Int J Sports Med ; 34(4): 336-44, 2013 Apr.
Article in English | MEDLINE | ID: mdl-23041962

ABSTRACT

The Cosmed AquaTrainer® snorkel, in connection with the K4b2 analyzer, is the most recent instrument used for real time gas analysis during swimming. This study aimed to test if a new AquaTrainer® snorkel with 2 (SV2) or 4 (SV4) valves is comparable to a standard face mask (Mask) being valid for real time gas analysis under controlled laboratory and swimming pool conditions. 9 swimmers performed 2 swimming and 3 cycling tests at 3 different workloads on separate days. Tests were performed in random order, at constant exercise load with direct turbine temperature measurements, breathing with Mask, SV4 and SV2 while cycling, and with SV2 and SV4 while swimming. A high agreement was obtained using Passing - Bablok regression analysis in oxygen consumption, carbon dioxide production, tidal volumes, pulmonary ventilation, expiratory fraction of oxygen and carbon dioxide, and heart rate comparing different conditions in swimming and cycling. Proportional and fixed differences were always rejected (95% CI always contained the value 1 for the slope and the 0 for the intercept). In conclusion, the new SV2 AquaTrainer® snorkel, can be considered a valid device for gas analysis, being comparable to the Mask and the SV4 in cycling, and to the SV4 in swimming.


Subject(s)
Oxygen Consumption/physiology , Respiratory Function Tests/instrumentation , Sports Equipment , Swimming/physiology , Adult , Carbon Dioxide/metabolism , Exercise Test , Female , Heart Rate/physiology , Humans , Male , Oxygen/metabolism , Pulmonary Ventilation/physiology , Regression Analysis , Tidal Volume/physiology
12.
Int J Sports Med ; 34(4): 330-5, 2013 Apr.
Article in English | MEDLINE | ID: mdl-23041966

ABSTRACT

The aims of this study were to estimate the difference in exercise intensity (METs), energy cost (EE) and gender difference between a typical salsa lesson (TSL), rueda de casino lesson (RCL), and salsa dancing at a night club (SDN). Subjects performed 1 pre-testing session and 3 testing conditions. During the pre-testing session height, weight and V˙O2max were assessed. During the testing conditions all subjects performed 3 different kinds of salsa dance. Heart rate was assessed during each dance condition. The exercise intensity of the 3 salsa dancing conditions was moderate ranging from 3.9 to 5.5 METs. A significant difference between genders for HRpeak (P=0.01), max%HRR (P=0.006) and mean EE (P=0.02) were observed. Significant gender×condition interactions for HRpeak (P=0.03), mean %HRR (P=0.02), mean METs (P=0.02) and mean EE (P=0.02) were found. In addition, a significant main effect for each condition was found in all variables (P<0.01). Our results showed that the exercise intensities of all 3 salsa dancing conditions were moderate. Findings showed some significant differences in exercise intensity between males and females and within conditions. Salsa dancing could be useful in achieving a significant training effect in people who have a low level of fitness.


Subject(s)
Dancing/physiology , Physical Exertion/physiology , Adult , Analysis of Variance , Energy Metabolism/physiology , Female , Heart Rate/physiology , Humans , Male , Oxygen Consumption/physiology , Sex Factors
13.
Int J Immunopathol Pharmacol ; 25(3): 811-7, 2012.
Article in English | MEDLINE | ID: mdl-23058036

ABSTRACT

Common variable immunodeficiency (CVID) is a primary immune disorder characterized by impaired antibody production, which is in many instances secondary to defective T cell function (T-CVID). We previously identified a subset of T-CVID patients characterized by defective expression of Vav1, a guanine nucleotide exchanger which couples the T-cell antigen receptor to reorganization of the actin cytoskeleton. Here we have addressed the possibility that an intrinsic defect in the Vav1 gene might underlie the reduction in Vav protein observed in T cells from these patients. We report the identification in one T-CVID patient of a heterozygous deletion in Vav1. The gene deletion, spanning exons 2-27, accounts for the reduction in Vav1 mRNA and protein in T cells from this patient. The disease-related pedigree of this patient suggests a de novo origin of the Vav1 deletion. The findings highlights Vav1 as an autosomal dominant disease gene associated with CVID with defective T-cell function.


Subject(s)
Common Variable Immunodeficiency/genetics , Haploinsufficiency , Proto-Oncogene Proteins c-vav/genetics , T-Lymphocytes/immunology , Adult , Aged , Aged, 80 and over , Case-Control Studies , Cells, Cultured , Common Variable Immunodeficiency/immunology , Down-Regulation , Exons , Female , Gene Deletion , Genetic Predisposition to Disease , Heterozygote , Humans , Italy , Male , Middle Aged , Pedigree , Phenotype , Proto-Oncogene Proteins c-vav/metabolism , RNA, Messenger/analysis
14.
Int J Sports Med ; 33(12): 1010-5, 2012 Dec.
Article in English | MEDLINE | ID: mdl-22791619

ABSTRACT

We aimed to determine the effect of sampling interval strategy on VO(2max) assessment to establish a standard time averaging method that allows a better identification of the VO(2) plateau incidence in swimming. To this end, 3 incremental protocols utilizing different step lengths for each sampling interval were used to compare VO(2max)measurements. 11 trained male swimmers performed 3 repetitions of a front crawl intermittent incremental protocol until exhaustion (increments of 0.05 m.s(-1), with 30 s and 24-48 h intervals between steps and tests, respectively) with 200, 300 and 400-m step lengths. VO(2) was directly measured, and 6 sampling intervals were compared: bxb and averages of 5, 10, 15, 20 and 30 s. Shorter sampling intervals (≤ 15 s) allowed the highest incidence of the VO(2) plateau, independent of the step lengths used; the 200 and 300-m step protocols accounted for higher percentage of VO(2) plateau incidence, and higher VO(2max) values, compared to the 400-m step protocol. As an optimal sampling interval should be used for the validation of the research findings, and considering that swimmers and coaches prefer less time-consuming protocols, the use of the 10 s time-average interval (once bxb and 5 s samplings present high variability) in a 200-m step incremental protocol for VO(2max) assessment in swimming is suggested.


Subject(s)
Oxygen Consumption/physiology , Swimming/physiology , Adolescent , Humans , Male , Time Factors , Young Adult
15.
Radiol Med ; 117(8): 1309-19, 2012 Dec.
Article in English, Italian | MEDLINE | ID: mdl-22327917

ABSTRACT

PURPOSE: The exact incidence of myocarditis is unknown, as the diagnosis is frequently delayed or missed. Clinical presentation and disease course are extremely variable, as there may be acute onset with acute coronary syndrome, or cardiogenic shock, or progressive heart failure or arrhythmias. The purpose of this study was to identify prognostic factors on magnetic resonance imaging (MRI) performed in patients with bioptically proven myocarditis at presentation and after 6 months. MATERIALS AND METHODS: Fifty-six consecutive patients with different presentations of myocarditis (20 with acute coronary syndrome, 20 with heart failure, 16 with arrhythmias) were enrolled. All patients underwent B-mode echocardiography (echo) and tissue Doppler imaging, coronarography, ventriculography, endomyocardial biopsy and contrast-enhanced MRI examination, as well as clinical and echo follow-up at 6 months. RESULTS: At 6-month follow-up, patients were divided in two groups according to values of end-systolic volume and ejection fraction: patients with negative remodelling and those with positive remodelling. Late enhancement was found to be an independent predictor of negative remodelling. CONCLUSIONS: Contrast-enhanced MRI is useful both in the diagnosis and as a prognostic indicator in the clinical suspicion of myocarditis.


Subject(s)
Magnetic Resonance Imaging , Myocarditis/diagnosis , Adolescent , Adult , Aged , Contrast Media , Echocardiography, Doppler , Female , Humans , Male , Middle Aged , Myocarditis/diagnostic imaging , Myocarditis/physiopathology , Prognosis , Ventricular Function, Left , Ventricular Remodeling , Young Adult
16.
Int J Immunopathol Pharmacol ; 24(3): 695-702, 2011.
Article in English | MEDLINE | ID: mdl-21978701

ABSTRACT

Most autoinflammatory disorders typically come out in the pediatric population, although a limited number of patients may experience disease onset during adulthood. To date, a late disease onset has been described only in familial Mediterranean fever, caused by mutations in the MEFV gene, and in tumor necrosis factor receptor-associated periodic syndrome, caused by mutations in the TNFRSF1A gene. The relative rarity and lack of information on adult-onset autoinflammatory diseases make it likely that mutations will be found in an even smaller percentage of cases. With the aim of improving the genetic diagnosis in adults with suspected autoinflammatory disorders, we recently identified a set of variables related to the probability of detecting gene mutations in MEFV and TNFRSF1A and, in addition, we have also proposed a diagnostic score for identifying those patients at high risk of carrying mutations in these genes. In the present study we evaluated the preliminary score sensitivity and specificity on a wider number of patients in order to validate the goodness of fit of the model. Two hundred and nineteen consecutive patients with a clinical history of periodic fever attacks were screened for mutations in MEFV and TNFRSF1A genes; detailed information about family/personal history and clinical manifestations were also collected. For the validation of the score we considered data both from the 110 patients used to build the preliminary diagnostic score and from the additional 219 patients enrolled in the present study, for a total number of 329 patients. Early age at disease onset, positive family history for recurrent fever episodes, thoracic pain, abdominal pain and skin rash, which are the variables that had previously been shown to be significantly associated with a positive genetic test result (12), were used for validation. On univariate analysis the associations with a positive genetic test were: age at onset (odds ratio [OR] 0.43, p=0.003), positive family history for recurrent fever episodes (OR 5.81, p<0.001), thoracic pain (OR 3.17, p<0.001), abdominal pain (OR 3.80, p<0.001) and skin rash (OR 1.58, p=0.103). The diagnostic score was calculated using the linear combination of the estimated coefficients of the logistic multivariate model (cut-off equals to 0.24) revealing good sensitivity (0.778) and good specificity (0.718). In conclusion, our score may serve in the diagnostic evaluation of adult patients presenting with recurrent fever episodes suspected of having an autoinflammatory disorder, helping identify the few subjects among them who may be carriers of mutations in MEFV and TNFRSF1A genes.


Subject(s)
Hereditary Autoinflammatory Diseases/diagnosis , Adolescent , Adult , Age of Onset , Aged , Child , Child, Preschool , DNA/biosynthesis , DNA/genetics , DNA Mutational Analysis , Female , Gene Amplification , Genetic Predisposition to Disease , Heterozygote , Humans , Infant , Logistic Models , Male , Maximal Expiratory Flow-Volume Curves/genetics , Middle Aged , Models, Biological , Odds Ratio , ROC Curve , Receptors, Tumor Necrosis Factor, Type I/genetics , Reproducibility of Results , White People , Young Adult
17.
Scand J Med Sci Sports ; 21(2): 324-9, 2011 Apr.
Article in English | MEDLINE | ID: mdl-19883379

ABSTRACT

To assess whether rural or urban setting may influence young girls' fitness and coordinative abilities training adaptations following dance training. Forty-four dancers aged 11-12 years (21 urban, 23 rural) attended a 6-month dance training while continuing to practice their habitual physical activities (PA). Dancers' fitness and motor coordination abilities were assessed by pre- and post-intervention tests (anthropometric measures, 1-mile run/walk, sit and reach, standing long jump, hand grip and four field tests of kinaesthetic discrimination and response orientation). PA was assessed using a self-report recall measure. After the intervention period, rural dancers significantly improved in 1-mile run/walk, lower limb kinaesthetic discrimination and response orientation ability tests. Significant differences between two groups in upper limb response orientation ability test were found. Both groups showed a significant increase in body height and weight. Multiple regression analysis indicated that time in nonorganized PA predicted some fitness and coordinative changes (1-mile run/walk, lower limb response orientation and kinaesthetic discrimination ability tests) following the training period, although the percentage of variance it could explain was moderate. Our results showed that training adaptations of some fitness and coordinative performances could be influenced by setting characteristics that provided opportunities for different types of PA.


Subject(s)
Dancing/physiology , Motor Skills/physiology , Physical Fitness/physiology , Rural Population , Urban Population , Anthropometry , Child , Exercise Test , Female , Humans , Italy , Regression Analysis
18.
Curr Med Chem ; 18(4): 497-512, 2011.
Article in English | MEDLINE | ID: mdl-21143114

ABSTRACT

The seven-spanning transmembrane G-protein coupled receptor CXCR4, which specifically binds to the chemokine CXCL12, is expressed on many cell types, including various types of tumour cells. CXCR4 plays a crucial role in organ-specific metastasis, directing migration of malignant cells expressing this receptor toward microenvironments where the cognate ligand is secreted. CXCL12 has a direct growth and survival-promoting effect for various cancer cells and enhances moreover tumour angiogenesis by recruiting endothelial progenitor cells to tumours. Drugs which modulate the CXCL12/CXCR4 axis are therefore promising candidates in anti-cancer therapies. CXCR4 is also a coreceptor for human immunodeficiency virus type 1 (HIV-1) X4 virus and, as such, plays an important role in virus entry into target cells. Hence, antiviral agents that bind to CXCR4 are expected to inhibit HIV-1 entry. Here we review the structure, mechanism of action and biological activity of the main CXCR4 antagonists (peptide inhibitors, non-peptide antagonists, neutralizing antibodies, modified analogues of CXCL12) and agonists (CXCL12 peptide analogues) and discuss the CXCL12/CXCR4 axis as an important target in development of anti-tumoral and anti-HIV-1 therapies.


Subject(s)
Chemokine CXCL12/agonists , HIV Infections/drug therapy , HIV-1 , Neoplasms/drug therapy , Receptors, CXCR4/agonists , Receptors, CXCR4/antagonists & inhibitors , Antineoplastic Agents/chemistry , Antineoplastic Agents/therapeutic use , Chemokine CXCL12/metabolism , Humans , Peptides/chemistry , Peptides/therapeutic use , Receptors, CXCR4/metabolism , Small Molecule Libraries/chemistry , Small Molecule Libraries/therapeutic use
19.
Int J Immunopathol Pharmacol ; 23(3): 701-7, 2010.
Article in English | MEDLINE | ID: mdl-20943039

ABSTRACT

Tumor necrosis factor-alpha receptor (TNFR1)-associated periodic syndrome (TRAPS) is the most common autosomal-dominant autoinflammatory condition and is caused by mutations in the TNFRSF1A gene. TRAPS is characterized by recurrent attacks of fever typically lasting from 1 to 3 weeks; in addition to fever, common clinical features include mainly periorbital oedema, conjunctivitis, a migratory erythematous plaque simulating erysipela with underlying myalgia, and arthritis or arthralgia; serosal membrane inflammation is also possible. The identification of TNFRSF1A mutations as the genetic cause of TRAPS coincided with the wider use of biological agents in medicine and raised the possibility that blocking TNF could potentially represent the primary therapeutic goal in TRAPS, thus disclosing new treatment choices for this complex disease. In the past few years, isolated reports and case-series have been published suggesting that inhibition of TNF-alpha might represent a promising therapeutic approach in TRAPS. We present here our experience with etanercept in the treatment of patients affected with TRAPS, and we also add a review of the literature.


Subject(s)
Anti-Inflammatory Agents, Non-Steroidal/therapeutic use , Hereditary Autoinflammatory Diseases/drug therapy , Immunoglobulin G/therapeutic use , Receptors, Tumor Necrosis Factor/physiology , Adult , Child , Etanercept , Female , Hereditary Autoinflammatory Diseases/pathology , Humans , Male , Middle Aged , Receptors, Tumor Necrosis Factor/therapeutic use , Receptors, Tumor Necrosis Factor, Type I/genetics
20.
J Sports Med Phys Fitness ; 50(3): 281-7, 2010 Sep.
Article in English | MEDLINE | ID: mdl-20842088

ABSTRACT

AIM: This study examined the interaction of exercise and music to establish the impact of these factors on state-anxiety and time to exhaustion comparing trained and active participants. METHODS: Twenty-six university students (13 trained, 13 active) completed the State-anxiety Inventory questionnaire before and after a submaximal treadmill running until volitional exhaustion in both music and no-music condition. RESULTS: ANOVA showed that both trained and active groups significantly reduced their State-Anxiety scores after exercise tasks (P<0.01, partial η2=0.26) independently by the presence of music. Finding also revealed that active group reported a higher significant reduction of their state anxiety score after exercise in music condition compared to no-music task (P<0.05, d=0.80), while this effect in trained group was not significant. Moreover, data showed that only active-subjects significantly prolonged their exercise experience in presence of music (P<0.05, d=0.47), while trained group did not. CONCLUSION: This study supports the general finding that exercise is associated with state-anxiety reduction, and suggests that music during exercise may improve this effect in active but not in trained participants. Further, listening to music during exercise may prolong the participants' exercise experience but different training status seems to qualify differently this response.


Subject(s)
Anxiety/prevention & control , Exercise/physiology , Music , Adult , Analysis of Variance , Anxiety/diagnosis , Exercise Test , Female , Humans , Male , Running/physiology , Surveys and Questionnaires
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