1,309 research outputs found

    A meta-analysis of biomarkers related to oxidative stress and nitric oxide pathway in migraine

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    Background Oxidative and nitrosative stress are considered key events in the still unclear pathophysiology of migraine. Methods Studies comparing the level of biomarkers related to nitric oxide (NO) pathway/oxidative stress in the blood/urine of migraineurs vs. unaffected controls were extracted from the PubMed database. Summary estimates of mean ratios (MR) were carried out whenever a minimum of three papers were available. Nineteen studies were included in the meta-analyses, accounting for more than 1000 patients and controls, and compared with existing literature. Results Most studies measuring superoxide dismutase (SOD) showed lower activity in cases, although the meta-analysis in erythrocytes gave null results. On the contrary, plasma levels of thiobarbituric acid reactive substances (TBARS), an aspecific biomarker of oxidative damage, showed a meta-MR of 2.20 (95% CI: 1.65–2.93). As for NOs, no significant results were found in plasma, serum and urine. However, higher levels were shown during attacks, in patients with aura, and an effect of diet was found. The analysis of glutathione precursor homocysteine and asymmetric dimethylarginine (ADMA), an NO synthase inhibitor, gave inconclusive results. Conclusions The role of the oxidative pathway in migraine is still uncertain. Interesting evidence emerged for TBARS and SOD, and concerning the possible role of diet in the control of NOx levels

    [factors Associated With Satisfaction With Life Among Elderly Caregivers And Non-caregivers].

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    This article seeks to investigate associations between satisfaction with life and sociodemographic variables, health conditions, functionality, social involvement and social support among elderly caregivers and non-caregivers, as well as between satisfaction and the intensity of stress in the caregiver group. A sample of 338 caregivers was selected according to two items of the Brazilian version of the Elders Life Stress Inventory. A comparison-group of elderly non-caregivers was selected at random, with a similar gender, age and income profile. Data were derived from self-reported questionnaires and scales. Elderly caregivers with low levels of satisfaction and high levels of stress revealed more symptoms of insomnia, fatigue, diseases and worse IADL performance. Those with greater satisfaction and less stress revealed a good level of social support. Insomnia, depression and fatigue were associated with low satisfaction among caregivers, and with fatigue, depression and low social support among non-caregivers. It was considered relevant that instrumental, psychological and informative support can improve the quality of life and the quality of care provided by elderly caregivers, especially if they are affected by unfavorable health and psychosocial conditions and low satisfaction with life.193429-4

    Old and Promising Markers Related to Autophagy in Traumatic Brain Injury

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    Traumatic brain injury (TBI) is one of the first causes of death and disability in the world. Because of the lack of macroscopical or histologic evidence of the damage, the forensic diagnosis of TBI could be particularly difficult. Considering that the activation of autophagy in the brain after a TBI is well documented in literature, the aim of this review is to find all autophagy immunohistological protein markers that are modified after TBI to propose a method to diagnose this eventuality in the brain of trauma victims. A systematic literature review on PubMed following PRISMA 2020 guidelines has enabled the identification of 241 articles. In all, 21 of these were enrolled to identify 24 markers that could be divided into two groups. The first consisted of well-known markers that could be considered for a first diagnosis of TBI. The second consisted of new markers recently proposed in the literature that could be used in combination with the markers of the first group to define the elapsed time between trauma and death. However, the use of these markers has to be validated in the future in human tissue by further studies, and the influence of other diseases affecting the victims before death should be explored

    Impact of Bullying and Low Perceived Social Support on Ultra- High-Risk for Psychosis in Immigrant Adolescents: A Preliminary Study

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    The purpose of our research is to identify, in a sample of immigrant adolescents, the presence of Ultra-High-Risk (UHR) for psychosis and to analyze the interaction between UHR, experience of bullying victimization and low social support. Data were collected from the medical records of 31 immigrant adolescents. CAARMS (Comprehensive Assessment of At-Risk Mental States) was used to determine the presence of ultra high risk (UHR) of developing psychosis, while MSPSS (Multidimensional Scale of Perceived Social Support) for the perceived social support. 45.2% of subjects resulted at high risk for psychosis (UHR). In the UHR group the 57.1% of the subjects told to be victims of bullying (p = 0,007). The MSPSS outlined that 17.2% of the subjects declared that they received a low social support, the 58.6% average, and the 24.1% a high support. Significant differences between UHR and NOT UHR group considering a low perceived social support emerged. Considering the fixed variable “being or not being bullied”, a direct correlation between bullying (ρ = 0.431) and UHR and an indirect correlation between the MSPSS total score (ρ = -0.273) and UHR emerged. Results of the multiple linear regression considering UHR as a dependent variable confirmed that both the variables are significant (p = 0.0082) and that they both contribute to the risk of psychosis. Preliminary results of our study suggest a relevant and causal relation between bullying, low social support and psychosis in immigrant adolescents

    Effect of Colic Vein Ligature in Rats with Loperamide-Induced Constipation

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    Introduction. Medical treatment in chronic constipation is not always successful. Surgery is indicated in unresponsive selected severe cases. This study presents the distal venous colic ligation in rat as a novel surgical approach. Materials and Methods. 16 rats (study group) were evaluated in 3 phases of 6 days each: A (normal conditions), B (loperamide-induced constipation), and C (colic vein legation) and compared with rats treated in phase C with PEG 4,000 (control group). Blood biochemical and physiological parameters, daily fecal water content (FWC), and histological analysis were performed in all study phases. Results. No biochemical and physiological parameters changes were observed. FWC decreased in phase B and increased in phase C in both groups with a grow up to 2.3-fold in study group compared to control (P < 0.0001). Moreover, in study group, a high number of colonic goblet cells were detected (phase C versus phase B: P < 0.001) while no differences were registered in control. Conclusion. By ligature of the colic vein in constipated rats, an increase in FWC and goblet cells higher than in PEG treated rats was detected. The described surgical procedure appeared effective, simple, and safe; further studies in animal models, however, are necessary to assess its clinical applicability

    Nutritional counseling in childhood and adolescence: a systematic review

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    Healthy eating habits are the basis for good health status, especially for children and adolescents, when growth and development are still ongoing. Nutrition educational programs are essential to prevent and treat chronic diseases. Nutritional counseling (NC), as a collaborative process between the counselor and the client process, could help to achieve better outcomes. This review aims to collect information about the utilization of NC during childhood and adolescence and to highlight its possible impact on adherence/compliance rates, nutrition knowledge, status and dietary intake. The methods applied in this systematic review followed the instruction of the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA). The search in PubMed/Medline, Scopus, Web of Science, LILACS, and Science Direct included observational or randomized studies. RoB 2.0 and Robins-I tools was used for the risk of bias assessment in randomized and non-randomized studies, respectively. The quality of evidence was checked by the Mixed Methods Appraisal Tool system. A total of 21 articles were selected, computing 4,345 individuals. 11 achieved at least 4 stars quality level. The highest risk of bias for randomized studies was related to the randomization process. 42.9% of non-randomized studies had some concerns of bias, mainly because of a lack of control of all confounding factors. Different strategies of NC were used in children and adolescents with positive results for health or diseases. NC strategies can be effectively used in children and adolescents. In general, NC showed benefits in pediatrics age for anthropometric or body composition parameters, dietary intake, nutrition knowledge and physical activity improvement. Performing NC in pediatrics is challenging due to the counseling strategies that must be adapted in their contents to the cognitive ability of each age. More structured research must be done focused on this population. Investments in healthy eating behaviors in pediatrics can lead to better health outcomes in the future population with substantial benefits to society.Systematic review registration[https://www.crd.york.ac.uk/prospero/#recordDetails], identifier [CRD42022374177]
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