Usefulness of salivary sampling for the molecular detection of a genetic variant associated with bipolar disorders

Under certain conditions, the hyperthymic temperament traits associated with an increased risk of developing bipolar disorders may in fact produce adaptive responses. The purpose of this study is to see if the type of biological material used for genetic analysis (saliva or blood) affects the detection of mutations in the CACNA1C (RS1006737) gene. The first experimental group consisted of Sardinian migrants (“volunteers”) in South American and European megacities. The second experimental group consisted of older healthy subjects with hyperactivity and novelty-seeking characteristics from Cagliari, Italy. The genetic procedure included DNA extraction, real-time PCR, and the Sanger method. Nonetheless, the authors believe that saliva is the most appropriate biological material, given its many advantages. In contrast to blood, saliva can be collected by any type of healthcare provider after following a few simple instructions

Inflammatory Indices during and after a Randomized Controlled Trial on Exercise in Old Adults: Could Moderate-intensity Exercise be Safe Enough? (Active Elderly and Health – Clinicaltrials.Gov, NCT03858114)

Background: Aging is characterized by a progressive increase in chronic diseases. According to WHO’s guidance, there is a need to develop strategies to monitor, maintain and rehabilitate the health of older people. The present research aims to elucidate whether or not a moderate physical activity intervention in older adults can cause an increase in inflammatory biomarker indices such as C-reactive Protein (CRP) and erythrocyte sedimentation rate (ESR). It is a valuable tool for promoting health that can be considered tolerable in the over-65 population. Methods: 120 males and females over 65 years of age participated in a randomized controlled trial (RCT NCT03858114) in two groups of 60 individuals of similar size and underwent moderate physical activity or cultural and recreational activities. The exclusion criteria were being younger than 65 years old, being unable to participate in physical activity for medical reasons, and a Body Mass Index of greater than 35. Blood samples from participants were collected for the pre-treatment period (t0), at the end of the study of 12 weeks (t1), and 20 weeks after the end of the study (t2) for measurement of inflammatory indices CRP and ESR. Results: The commonly routine tests for inflammatory reactions (ERS and CPR) showed no change at the end of an RCT on mild-to-moderate exercise. Conclusion: The results on inflammatory indices confirm the safety of this type of intervention and encourage its long-term use and testin

Plasticity in the Oxidative Folding Pathway of the High Affinity Nerita Versicolor Carboxypeptidase Inhibitor (NvCI)

Nerita Versicolor carboxypeptidase inhibitor (NvCI) is the strongest inhibitor reported so far for the M14A subfamily of carboxypeptidases. It comprises 53 residues and a protein fold composed of a two-stranded antiparallel β sheet connected by three loops and stabilized by three disulfide bridges. Here we report the oxidative folding and reductive unfolding pathways of NvCI. Much debate has gone on whether protein conformational folding guides disulfide bond formation or instead they are disulfide bonds that favour the arrangement of local or global structural elements. We show here that for NvCI both possibilities apply. Under physiological conditions, this protein folds trough a funnelled pathway involving a network of kinetically connected native-like intermediates, all sharing the disulfide bond connecting the two β-strands. In contrast, under denaturing conditions, the folding of NvCI is under thermodynamic control and follows a "trial and error" mechanism, in which an initial quasi-stochastic population of intermediates rearrange their disulfide bonds to attain the stable native topology. Despite their striking mechanistic differences, the efficiency of both folding routes is similar. The present study illustrates thus a surprising plasticity in the folding of this extremely stable small disulfide-rich inhibitor and provides the basis for its redesign for biomedical applications.Instituto Multidisciplinario de Biología Celula

Principal Component Analysis of the Social and Behavioral Rhythms Scale in elderly

Background: Changes in social and behavioral rhythms (SBR) in elderly are related to health status. Nevertheless, there is no data on factor analysis of the Brief Social Rhythm Scale (BSRS) an internationally well-known tool in this field. The aim was to analyze, in elderly, the factorial structure of the Italian version of BSRS.Design and Methods: Principal Component Analysis of the BSRS carried out in elderly living at home.Results: Sample of 141 participants (83 Females, 58,9%), aged 72.3±4.8. All the items of the questionnaire were related and could compose a single factor, explaining 56% of variance. A solution adopting two factors, the first (including items 1,2,3,4,9,10), the second (including items 5,6,7,8), covered cumulatively 78.8% of the variance.Conclusion: The study confirms that the BSRS is consistent with the idea for which it was built and can be useful for the study of regularity of SBR in old adults

Heart Rate Variability Biofeedback Efficacy on Fatigue and Energy Levels in Fibromyalgia: A Secondary Analysis of RCT NCT0412183

: Background: Fibromyalgia syndrome (FMs) is a chronic condition characterized by widespread musculoskeletal pain and a range of complex symptoms, with chronic fatigue being a central feature significantly impacting daily life. The aim of this study was to analyze the secondary outcomes, specifically those related to perceived energy and fatigue symptoms in a randomized controlled trial (RCT) assessing the efficacy of heart rate variability biofeedback (HRV-BF) as an adjunctive treatment for FMs. Methods: Sixty-four FMs patients were randomly assigned to either receive 10 HRV-BF training sessions alongside standard pharmacological therapy (experimental group) or standard therapy alone for 10 weeks (control group). For this secondary analysis, potential improvements in specific items were evaluated regarding perceived energy (Item 10 of the Short-Form Health Survey), the ability to walk and climb stairs (Item 7 and Item 11 of the Fibromyalgia Impact Questionnaire, respectively), and the impact of pain on movement ability (Item 17 of the Bodily and Emotional Perception of Pain). Results: The experimental group demonstrated an improvement in the perception of energy, the ability to walk, and the impact of pain on movement ability. However, the same improvement was not observed in the ability to climb stairs. Conclusions: Fatigue assessment has emerged as a crucial factor for evaluating treatment efficacy in FMs and related conditions linked to altered energy levels, such as bipolar depression, and can offer valuable insights for precisely guiding HRV-BF treatments. ClinicalTrials.gov with code: NCT04121832

The impact of MDQ positivity on quality of life impairment: Does it support the hypothesis of Dysregulation of Mood, Energy, and Social Rhythms Syndrome (DYMERS)?

Background: DSM-5 separates bipolar (BD) from depressive disorders, but some experts consider BD as part of a spectrum of mood disorders. The interpretation of numerous false positives of BD screened by the Mood Disorders Questionnaire (MDQ) is part of this debate. Recent study results suggest that the worsening of health-related quality of life (H-Qol) associated with MDQ positivity does not depend solely on mood disorders. This study aims to clarify whether the impairment may be due to other concomitant disorders, unrelated to mood disorders, leading to a worsening of H-Qol. Additionally, the study aims to explore if MDQ positivity itself observe clinical significance.Design and methods: The study involved pairs of cases (MDQ+) and controls (MDQ-) matched for sex, age, and absence of DSM-IV psychiatric comorbidity. The impact of MDQ positivity on the quality of life in a sample of MDQ+ comorbid with MDD was measured and compared to impact of MDD in other chronic disorders.Results: The H-Qol was significantly worse in MDQ+ than in controls (both groups without any psychiatric co-morbidity). The worsening was similar to severe chronic disorders The burden of worsening quality of life due to MDD was mild in another sample of MDQ positives with comorbid MDD.Conclusion:The study hypothesizes that MDQ positivity may be related to hyperactivation and dysregulation of rhythms typical of stress disorders. In fact, MDQ+ was found strongly related to sleep disturbances. Future studies could verify if a "Dysregulation of Mood, Energy, and Social Rhythms Syndrome" (DYMERS), causes worsening the H-Qol in MDQ+

Improving Quality of Life in Older Adults Living at Home by a Moderate Exercise Training

Background: Physical activity is associated with a higher quality of life (QoL) in older adults, but there is no evidence whether its effects on healthy individuals or individuals with a mild disability performing a medium-intensity exercise program can be assessed. Objective: This randomized controlled trial aims to evaluate whether moderate exercise training can improve QoL, and whether this model is suitable for older adults with mild chronic diseases living in the community. Methods: 120 participants, randomized 1/1 to either perform a physical exercise protocol or to undergo a social program (control group), were recruited in a 12-week randomized controlled trial registered at ClinicalTrials.Gov (NCT03858114). QoL was measured through the Health-Related Quality of Life Survey Short Form - 12 items tool (SF-12). Results: The participants involved in the exercise-training program had a moderate QoL improvement, compared to those involved in cultural activities, who experienced no change or even a worsening of their QoL. However, the between-groups differences did not attain the statistically significant threshold, when globally assessed, F[1, 103] = 2.98, p = .087, nor when the analysis was restricted to the physical (F[1, 103] = 2.78, p = .099) or mental components (F[1, 103] = 3.83, p = .053). Conclusion: Data from this study are not conclusive, although suggestive of possible efficacy. An effort to collect a larger amount of evidence is advisable. Research published only as protocols, not providing final results, might be useful to demonstrate or reject the hypothesis that physical exercise improves QoL in older adults. On a heuristic level, the sum of results that are not conclusive individually might be decisive if meta-analyzed. (Randomized Controlled Blind trial NCT03858114)

Effect of a Low-Moderate Exercise Program on Dysmetabolism in Older Adults: Results of a Randomized Controlled Trial

Physical exercise has been shown to improve dysmetabolism in older adults, reducing cardiovascular risk, while its role in preventing dysmetabolism is less known. Moreover, most of the trials use exercise programs that are difficult to put into daily practice. The purpose of this Randomized Controlled Trial (RCT) was to evaluate the effectiveness of a 3-month moderate exercise program in improving or preventing dysmetabolism in 120 older adults, randomly selected for the exercise program (experimental group) or cultural activities (control group). None of the subjects were following a hypocaloric diet, and all of them reported healthy eating habits. Anthropometric (Body Mass Index (BMI) and Waist Circumference (WC)) and metabolic variables (fasting plasma glucose (FPG), High-Density Lipoprotein Cholesterol (HDL-C), and triglycerides (TG)) were assessed at baseline (T0) and at the end of the trial (T1). Dysmetabolism was defined by the presence of an increased WC plus at least two metabolic alterations. At T0, the two groups did not differ by sex, age, education, BMI, WC, FPG, HDL-C levels, and prevalence of dysmetabolism. The mean BMI value indicated overweight, and WC values were higher than the cut-off. At T1, a slight reduction in the number of people with dysmetabolism was found only in the experimental group. However, none of the individuals without dysmetabolism at T0 in the experimental group developed it at T1, while 11.4% developed it in the control group (p = 0.032). This study highlights that a moderate exercise program, accessible in daily practice, can prevent dysmetabolism in older adults, even while being overweight, while if dysmetabolism is already present, more prolonged combined nutritional and exercise interventions will be needed

Mental Health Professionals’ Perception of Respect for Human Rights and Organizational Well-Being in Three Countries of South America

The respect for human rights in mental health care services significantly contributes to organizational well-being and is evolving into an actual benchmark of quality standards. This study assesses the perception of the respect for human rights for users and staff, as well as organizational and job satisfaction among mental health professionals in three South American countries, through the well-being at work and respect for human rights (WWRR) questionnaire and assesses whether there are significant differences. Seven mental health facilities in Argentina, Colombia, and Peru were involved in this observational study. The sample comprised 310 mental health professionals. The three countries exhibited differences in WWRR, particularly in the staff's satisfaction with resources for care (η2 = 0.166) and staff's satisfaction with organizational aspects (η2 = 0.113). Colombia had the lowest scores in these factors but the highest in the perception of the respect for human rights for users and staff, although this difference did not reach a statistical significance. Despite the progress made in recent years towards coercion-free medical standards and an increased focus on mental health polices in Latin American countries, there is a need to enhance the quality standards of mental health services, recognizing the value that the respect for human rights holds for the organizational well-being of both mental health users and professionals