The 2-Minutes Walking Test Is Not Correlated with Aerobic Fitness Indices but with the 5-Times Sit-to-Stand Test Performance in Apparently Healthy Older Adults.

The 2-minutes walking test (2-MWT) is a valid and reliable test that has a high correlation with the distance walked in the 6-minutes walking test (6-MWT). However, to date, no study has determined the relationship between 2-MWT performance and the aerobic fitness indices obtained during a maximal incremental test to confirm if this test is a valid surrogate of aerobic fitness in apparently healthy older adults. The main objective of this work was to identify the factors associated to the performance in the 2-MWT, including aerobic fitness, functional and spatial-temporal gait parameters. Seventeen elderly adults performed a maximal incremental cycling test to determine maximum oxygen consumption (VO2max) and ventilatory thresholds (VT1 and VT2), two static standing balance tests with open and close eyes, a 5-times sit-to-stand test (5-TSTS), a handgrip test, and a 2-MWT on three different days over 2 weeks. No correlations were found between aerobic fitness indices and the distance covered in 2-MWT, but significant moderate correlations were found between the distance covered in 2-MWT and the time to perform the 5-TSTS (rho = -0.49) and with stride length (rho = 0.52) during the test. In conclusion, the 2-MWT does not seem a good test to assess aerobic capacity while it showed to be associated to the 5-TSTS performance of the elderly.

Long-Term Exposure to Air Pollution and COVID-19 Vaccine Antibody Response in a General Population Cohort (COVICAT Study, Catalonia).

BACKGROUND: Ambient air pollution has been associated with COVID-19 disease severity and antibody response induced by infection. OBJECTIVES: We examined the association between long-term exposure to air pollution and vaccine-induced antibody response. METHODS: This study was nested in an ongoing population-based cohort, COVICAT, the GCAT-Genomes for Life cohort, in Catalonia, Spain, with multiple follow-ups. We drew blood samples in 2021 from 1,090 participants of 2,404 who provided samples in 2020, and we included 927 participants in this analysis. We measured immunoglobulin M (IgM), IgG, and IgA antibodies against five viral-target antigens, including receptor-binding domain (RBD), spike-protein (S), and segment spike-protein (S2) triggered by vaccines available in Spain. We estimated prepandemic (2018-2019) exposure to fine particulate matter [PM ≤2.5µm in aerodynamic diameter (PM2.5)], nitrogen dioxide (NO2), black carbon (BC), and ozone (O3) using Effects of Low-Level Air Pollution: A Study in Europe (ELAPSE) models. We adjusted estimates for individual- and area-level covariates, time since vaccination, and vaccine doses and type and stratified by infection status. We used generalized additive models to explore the relationship between air pollution and antibodies according to days since vaccination. RESULTS: Among vaccinated persons not infected by SARS-CoV-2 (n=632), higher prepandemic air pollution levels were associated with a lower vaccine antibody response for IgM (1 month post vaccination) and IgG. Percentage change in geometric mean IgG levels per interquartile range of PM2.5 (1.7 µg/m3) were -8.1 (95% CI: -15.9, 0.4) for RBD, -9.9 (-16.2, -3.1) for S, and -8.4 (-13.5, -3.0) for S2. We observed a similar pattern for NO2 and BC and an inverse pattern for O3. Differences in IgG levels by air pollution levels persisted with time since vaccination. We did not observe an association of air pollution with vaccine antibody response among participants with prior infection (n=295). DISCUSSION: Exposure to air pollution was associated with lower COVID-19 vaccine antibody response. The implications of this association on the risk of breakthrough infections require further investigation. https://doi.org/10.1289/EHP11989.

Identification of potential bioactive compounds of Passiflora edulis leaf extract against colon adenocarcinoma cells.

Plant bioactive compounds such as flavonoids and triterpenes can affect lipid metabolism. Here, we report the cytotoxic and lipid-lowering activities of the ethanolic extract of P. edulis leaves on human colon adenocarcinoma SW480 cells, also the molecular interactions of bioactive compounds present in P. edulis extract on ACC and HMGCR enzymes. The extract reduced cell viability and decreased intracellular triglyceride content by up to 35% and 28% at 24 and 48 h, respectively; whereas the effect was evident on cholesterol only at 24 h. In-silico analysis revealed that luteolin, chlorogenic acid, moupinamide, isoorientin, glucosyl passionflower, cyclopasifloic acid E and saponarin had optimal molecular coupling on Acetyl-CoA Carboxylase 1 and 2 as well as 3-hydroxy-3-methyl-glutaryl-CoA reductase, with possible inhibitory effects. These results show the ability of ethanolic extract to reduce intracellular levels of cholesterol and triglycerides in SW480 cells, which attracts attention for the treatment of colorectal cancer.

Skin Phototype and Disease: A Comprehensive Genetic Approach to Pigmentary Traits Pleiotropy Using PRS in the GCAT Cohort.

Human pigmentation has largely been associated with different disease prevalence among populations, but most of these studies are observational and inconclusive. Known to be genetically determined, pigmentary traits have largely been studied by Genome-Wide Association Study (GWAS), mostly in Caucasian ancestry cohorts from North Europe, identifying robustly, several loci involved in many of the pigmentary traits. Here, we conduct a detailed analysis by GWAS and Polygenic Risk Score (PRS) of 13 pigmentary-related traits in a South European cohort of Caucasian ancestry (n = 20,000). We observed fair phototype strongly associated with non-melanoma skin cancer and other dermatoses and confirmed by PRS-approach the shared genetic basis with skin and eye diseases, such as melanoma (OR = 0.95), non-melanoma skin cancer (OR = 0.93), basal cell carcinoma (OR = 0.97) and darker phototype with vitiligo (OR = 1.02), cataracts (OR = 1.04). Detailed genetic analyses revealed 37 risk loci associated with 10 out of 13 analyzed traits, and 16 genes significantly associated with at least two pigmentary traits. Some of them have been widely reported, such as MC1R, HERC2, OCA2, TYR, TYRP1, SLC45A2, and some novel candidate genes C1QTNF3, LINC02876, and C1QTNF3-AMACR have not been reported in the GWAS Catalog, with regulatory potential. These results highlight the importance of the assess phototype as a genetic proxy of skin functionality and disease when evaluating open mixed populations.

SARS-CoV-2 infection, vaccination, and antibody response trajectories in adults: a cohort study in Catalonia.

BACKGROUND: Heterogeneity of the population in relation to infection, COVID-19 vaccination, and host characteristics is likely reflected in the underlying SARS-CoV-2 antibody responses. METHODS: We measured IgM, IgA, and IgG levels against SARS-CoV-2 spike and nucleocapsid antigens in 1076 adults of a cohort study in Catalonia between June and November 2020 and a second time between May and July 2021. Questionnaire data and electronic health records on vaccination and COVID-19 testing were available in both periods. Data on several lifestyle, health-related, and sociodemographic characteristics were also available. RESULTS: Antibody seroreversion occurred in 35.8% of the 64 participants non-vaccinated and infected almost a year ago and was related to asymptomatic infection, age above 60 years, and smoking. Moreover, the analysis on kinetics revealed that among all responses, IgG RBD, IgA RBD, and IgG S2 decreased less within 1 year after infection. Among vaccinated, 2.1% did not present antibodies at the time of testing and approximately 1% had breakthrough infections post-vaccination. In the post-vaccination era, IgM responses and those against nucleoprotein were much less prevalent. In previously infected individuals, vaccination boosted the immune response and there was a slight but statistically significant increase in responses after a 2nd compared to the 1st dose. Infected vaccinated participants had superior antibody levels across time compared to naïve-vaccinated people. mRNA vaccines and, particularly the Spikevax, induced higher antibodies after 1st and 2nd doses compared to Vaxzevria or Janssen COVID-19 vaccines. In multivariable regression analyses, antibody responses after vaccination were predicted by the type of vaccine, infection age, sex, smoking, and mental and cardiovascular diseases. CONCLUSIONS: Our data support that infected people would benefit from vaccination. Results also indicate that hybrid immunity results in superior antibody responses and infection-naïve people would need a booster dose earlier than previously infected people. Mental diseases are associated with less efficient responses to vaccination.

Comparison of the Agonist/Antagonist Tensional Balance of the Knee between Two Isokinetic Positions: A Pilot Study on a Sample of High-Level Competitive Soccer Players.

Isokinetic knee dynamometry evolves towards more precise techniques, such as the calculation of the functional ratio. This study evaluated the influence of an intermediate hip position called the unified reclined position (URP) compared to the classic sitting position, (CSP) on hamstring eccentric PT values (Hexc30) and conventional (Hcon60/Qcon60) and functional (Hexc30/Qcon60) ratios. Twenty Spanish high-level competitive soccer players (20.4 ± 4.44 years) were evaluated in CSP and in URP. The hip angle in URP (44°) was determined with a passive extensibility test (quadriceps and hamstrings), looking for an agonist/antagonist tension balance. The following were performed: three repetitions (60°/s) and five repetitions (240°/s) in concentric quadriceps and hamstrings mode; and three repetitions (30°/s) in concentric and eccentric for the hamstrings. At 30°/s, the CSP presents higher values of maximal eccentric hamstring strength than URP, (Dom + N-Dom leg (Nm): CSP = 148.3 ± 19.5 vs. URP 143.5 ± 23.2); p = 0.086 (n.s.). The conventional relationship did not show data justifying the preference for URP over CSP (p = 0.86 (n.s.)). However, although the functional index did not show significant values (p = 0.97 (n.s.), it did show a greater number of subjects with imbalances measured in URP (five in URP vs. two in CSP). An assessment angle of the hip closer to sports reality seems to favor the use of the URP as a complementary method to the CSP. These data stimulate new studies using URP together with the classic protocol.

GCAT|Panel, a comprehensive structural variant haplotype map of the Iberian population from high-coverage whole-genome sequencing.

The combined analysis of haplotype panels with phenotype clinical cohorts is a common approach to explore the genetic architecture of human diseases. However, genetic studies are mainly based on single nucleotide variants (SNVs) and small insertions and deletions (indels). Here, we contribute to fill this gap by generating a dense haplotype map focused on the identification, characterization, and phasing of structural variants (SVs). By integrating multiple variant identification methods and Logistic Regression Models (LRMs), we present a catalogue of 35 431 441 variants, including 89 178 SVs (≥50 bp), 30 325 064 SNVs and 5 017 199 indels, across 785 Illumina high coverage (30x) whole-genomes from the Iberian GCAT Cohort, containing a median of 3.52M SNVs, 606 336 indels and 6393 SVs per individual. The haplotype panel is able to impute up to 14 360 728 SNVs/indels and 23 179 SVs, showing a 2.7-fold increase for SVs compared with available genetic variation panels. The value of this panel for SVs analysis is shown through an imputed rare Alu element located in a new locus associated with Mononeuritis of lower limb, a rare neuromuscular disease. This study represents the first deep characterization of genetic variation within the Iberian population and the first operational haplotype panel to systematically include the SVs into genome-wide genetic studies.

Impact of COVID-19 in nutritional and functional status of survivors admitted in intensive care units during the first outbreak. Preliminary results of the NUTRICOVID study.

BACKGROUND & AIMS: COVID-19 patients present a high hospitalization rate with a high mortality risk for those requiring intensive care. When these patients have other comorbid conditions and older age, the risk for severe disease and poor outcomes after ICU admission are increased. The present work aims to describe the preliminary results of the ongoing NUTRICOVID study about the nutritional and functional status and the quality of life of adult COVID-19 survivors after ICU discharge, emphasizing the in-hospital and discharge situation of this population. METHODS: A multicenter, ambispective, observational cohort study was conducted in 16 public hospitals of the Community of Madrid with COVID-19 survivors who were admitted to the ICU during the first outbreak. Preliminary results of this study include data retrospectively collected. Malnutrition and sarcopenia were screened at discharge using MUST and SARC-F; the use of healthcare resources was measured as the length of hospital stay and requirement of respiratory support and tracheostomy during hospitalization; other study variables were the need for medical nutrition therapy (MNT); and patients' functional status (Barthel index) and health-related quality of life (EQ-5D-5L). RESULTS: A total of 176 patients were included in this preliminary analysis. Most patients were male and older than 60 years, who suffered an average (SD) weight loss of 16.6% (8.3%) during the hospital stay, with a median length of stay of 53 (27-89.5) days and a median ICU stay of 24.5 (11-43.5) days. At discharge, 83.5% and 86.9% of the patients were at risk of malnutrition and sarcopenia, respectively, but only 38% were prescribed MNT. In addition, more than 70% of patients had significant impairment of their mobility and to conduct their usual activities at hospital discharge. CONCLUSIONS: This preliminary analysis evidences the high nutritional and functional impairment of COVID-19 survivors at hospital discharge and highlights the need for guidelines and systematic protocols, together with appropriate rehabilitation programs, to optimize the nutritional management of these patients after discharge.

Specialized metabolism and development: An unexpected friendship.

Plants produce a myriad of metabolites. Some of them have been regarded for a long time as secondary or specialized metabolites and are considered to have functions mostly in defense and the adaptation of plants to their environment. However, in the last years, new research has shown that these metabolites can also have roles in the regulation of plant growth and development, some acting as signals, through the interaction with hormonal pathways, and some independently of them. These reports provide a glimpse of the functional possibilities that specialized metabolites present in the modulation of plant development and encourage more research in this direction.

Ambient Air Pollution in Relation to SARS-CoV-2 Infection, Antibody Response, and COVID-19 Disease: A Cohort Study in Catalonia, Spain (COVICAT Study).

BACKGROUND: Emerging evidence links ambient air pollution with coronavirus 2019 (COVID-19) disease, an association that is methodologically challenging to investigate. OBJECTIVES: We examined the association between long-term exposure to air pollution with SARS-CoV-2 infection measured through antibody response, level of antibody response among those infected, and COVID-19 disease. METHODS: We contacted 9,605 adult participants from a population-based cohort study in Catalonia between June and November 2020; most participants were between 40 and 65 years of age. We drew blood samples from 4,103 participants and measured immunoglobulin M (IgM), IgA, and IgG antibodies against five viral target antigens to establish infection to the virus and levels of antibody response among those infected. We defined COVID-19 disease using self-reported hospital admission, prior positive diagnostic test, or more than three self-reported COVID-19 symptoms after contact with a COVID-19 case. We estimated prepandemic (2018-2019) exposure to fine particulate matter [PM with an aerodynamic diameter of ≤2.5µm (PM2.5)], nitrogen dioxide (NO2), black carbon (BC), and ozone (O3) at the residential address using hybrid land-use regression models. We calculated log-binomial risk ratios (RRs), adjusting for individual- and area-level covariates. RESULTS: Among those tested for SARS-CoV-2 antibodies, 743 (18.1%) were seropositive. Air pollution levels were not statistically significantly associated with SARS-CoV-2 infection: Adjusted RRs per interquartile range were 1.07 (95% CI: 0.97, 1.18) for NO2, 1.04 (95% CI: 0.94, 1.14) for PM2.5, 1.00 (95% CI: 0.92, 1.09) for BC, and 0.97 (95% CI: 0.89, 1.06) for O3. Among infected participants, exposure to NO2 and PM2.5 were positively associated with IgG levels for all viral target antigens. Among all participants, 481 (5.0%) had COVID-19 disease. Air pollution levels were associated with COVID-19 disease: adjusted RRs=1.14 (95% CI: 1.00, 1.29) for NO2 and 1.17 (95% CI: 1.03, 1.32) for PM2.5. Exposure to O3 was associated with a slightly decreased risk (RR=0.92; 95% CI: 0.83, 1.03). Associations of air pollution with COVID-19 disease were more pronounced for severe COVID-19, with RRs=1.26 (95% CI: 0.89, 1.79) for NO2 and 1.51 (95% CI: 1.06, 2.16) for PM2.5. DISCUSSION: Exposure to air pollution was associated with a higher risk of COVID-19 disease and level of antibody response among infected but not with SARS-CoV-2 infection. https://doi.org/10.1289/EHP9726.

Infection induced SARS-CoV-2 seroprevalence and heterogeneity of antibody responses in a general population cohort study in Catalonia Spain.

Sparse data exist on the complex natural immunity to SARS-CoV-2 at the population level. We applied a well-validated multiplex serology test in 5000 participants of a general population study in Catalonia in blood samples collected from end June to mid November 2020. Based on responses to fifteen isotype-antigen combinations, we detected a seroprevalence of 18.1% in adults (n = 4740), and modeled extrapolation to the general population of Catalonia indicated a 15.3% seroprevalence. Antibodies persisted up to 9 months after infection. Immune profiling of infected individuals revealed that with increasing severity of infection (asymptomatic, 1-3 symptoms, ≥ 4 symptoms, admitted to hospital/ICU), seroresponses were more robust and rich with a shift towards IgG over IgA and anti-spike over anti-nucleocapsid responses. Among seropositive participants, lower antibody levels were observed for those ≥ 60 years vs < 60 years old and smokers vs non-smokers. Overweight/obese participants vs normal weight had higher antibody levels. Adolescents (13-15 years old) (n = 260) showed a seroprevalence of 11.5%, were less likely to be tested seropositive compared to their parents and had dominant anti-spike rather than anti-nucleocapsid IgG responses. Our study provides an unbiased estimate of SARS-CoV-2 seroprevalence in Catalonia and new evidence on the durability and heterogeneity of post-infection immunity.

Involvement in self-care and psychological well-being of Spanish family caregivers of relatives with dementia.

The provision of continuous care to a dependent person can lead to a lack of self-care by the caregiver themselves with corresponding low levels of well-being. This well-being has been analysed mostly from within the perspective of the hedonic tradition, with the development of personal growth often being overlooked. This study aims to increase the understanding of the connection between this type of psychological well-being and involvement in self-care activities, and to be a starting point for the determination of categories that may serve in the screening of potential participants in social-health interventions where it is being promoted. Taking the hypothesis of a probable positive connection between psychological well-being and involvement in self-care, an observational study was carried out on 45 caregivers of relatives with dementia. In those caregivers showing greater dedication to self-care, a higher score was obtained on the well-being scales connected to personal significance and positive emotions and experiences. These findings were further reinforced by the identification of other positive connections, the involvement in self-care and the six dimensions of wellness contemplated by Ryff. It is possible to envisage the existence of a virtuous circle in respect of the caregiver, whereby a greater involvement in self-care is related to a higher psychological well-being, which in turn is related to greater self-care, and so on.

Estrés oxidativo e ingesta de Passiflora edulis en voleibolistas hombres / Oxidative stress and intake of Passiflora edulis in men's volleyball players

Introducción: El estrés oxidativo, puede disminuir el rendimiento deportivo, generando una posible sobrecarga muscular. Una adecuada alimentación contribuye a disminuir los productos derivados del estrés oxidativo; un alimento antiestrés oxidativo es el fruto de la Passiflora edulis, ya que se ha comprobado in-vitro su alto contenido polifenólico. Objetivo: Determinar el efecto del consumo de Passiflora edulis sobre marcadores de estrés oxidativo en voleibolistas durante un microciclo de choque. Metodología: Voluntariamente participaron 14 voleibolistas; aleatoriamente fueron divididos en grupo experimental (GE) y grupo placebo (GP), ambos grupos entraron al microciclo de choque. Durante los siete días del microciclo, GE consumió 2 ml/día de zumo de Passiflora edulis (1mg/ml) y GP recibió 2 ml de placebo. Se tomaron 4 muestras sanguíneas durante los días 1(D1), 4(D4), 7(D7) y 14(D14). Se determinó catalasa (CAT), superóxido dismutasa (SOD) y las sustancias reactivas al ácido tiobarbitúrico (TBARS). Resultados: Durante el microciclo, SOD incremento en ambos grupos, en D4 con respecto al D1, y disminuyó del D14 con respecto al D7 ambos significativamente. La CAT no presentó diferencias estadísticas entre los días evaluados. Las diferencias estadísticas con respecto a TBARS únicamente se presentaron en GE y fueron en el incremento del D4 con respecto al D1, y en el descenso del D14 con respecto al D7. No hubo diferencias significativas al comparar las mediciones realizadas entre el GE y el GP. Conclusión: No se encontró efecto significativo del consumo de P. edulis sobre los marcadores de estrés oxidativo evaluados, es necesario evaluar diferentes concentraciones del zumo.

Introduction: Oxidative stress can decrease sports performance, generating a possible muscle overload. An adequate diet contributes to reducing the products derived from oxidative stress; an oxidative anti-stress food is the fruit of Passiflora edulis, as has been verified in-vitro its high polyphenolic content. Objective: to determine the effect of Passiflora edulis consumption on oxidative stress markers in volleyball players during a shock microcycle. Methodology: 14 volleyball players participated voluntarily; They were randomly divided into an experimental group (EG) and a placebo group (PG), both groups entered the shock microcycle. During the seven days of the microcycle, GE consumed 2 ml / day of Passiflora edulis juice (1mg/ml) and PG received 2 ml of placebo. Four blood samples were taken on days 1(D1), 4(D4), 7(D7) and 14(D14). Catalase (CAT), superoxide dismutase (SOD) and thiobarbituric acid reactive substances (TBARS) were determined. Results: During the microcycle, SOD increased in both groups, in D4 compared to D1, and decreased significantly in D14 compared to D7. The CAT did not present statistical differences between the days evaluated. The statistical differences with respect to TBARS only appeared in GE and were in the increase of D4 with respect to D1, and in the decrease of D14 with respect to D7. There were no significant differences when comparing the measurements made between the EG and the GP. Conclusion: No significant effect of the consumption of Passiflora edulis was found on the oxidative stress markers evaluated, it is necessary to evaluate different concentrations of the juice.

Local and Contralateral Effects after the Application of Neuromuscular Electrostimulation in Lower Limbs.

Neuromuscular electrostimulation (NMES) has been used mainly as a method to promote muscle strength, but its effects on improving blood flow are less well known. The aim of this study is to deepen the knowledge about the local and contralateral effects of the application of symmetric biphasic square currents on skin temperature (Tsk). An experimental pilot study was developed with a single study group consisting of 45 healthy subjects. Thermographic evaluations were recorded following the application of NMES to the anterior region of the thigh. The results showed an increase in the maximal Tsk of 0.67% in the anterior region of the thigh where the NMES was applied (p < 0.001) and an increase of 0.54% (p < 0.01) due to cross-education effects, which was higher when the NMES was applied on the dominant side (0.79%; p < 0.01). The duration of the effect was 20 min in the dominant leg and 10 min in the nondominant one. The application of a symmetrical biphasic current (8 Hz and 400 µs) creates an increase in the maximal Tsk at the local level. A temperature cross-education effect is produced, which is greater when the NMES is applied on the dominant side. This could be a useful noninvasive measurement tool in NMES treatments.

Physiotherapeutic intervention to promote self-care: exploratory study on Spanish caregivers of patients with dementia.

The caregivers of dependent persons should benefit from social-health interventions that empower them. Physiotherapists can play an important role as facilitators of self-care learning by boosting the mind-body interaction. The aim of this study was to analyse the efficacy of a physiotherapeutic intervention centered on the promotion of self-care within a sample of caregivers, members of four Spanish Associations of Relative of Alzheimer's and other dementias. To fulfill the study goal, a pre-experimental study was developed with two different groups. Group 1 participated in four training sessions based exclusively on the communication of information and which addressed, among other aspects, the most frequent health problems in caregivers and the powerful role of self-care to face such problems. Group 2 received the same theoretical information as group 1, followed by 10 sessions of practical training in several concrete strategies of body-mind self-care. The results obtained support the usefulness of combining theoretical and practical training in mind-body strategies (relaxation, self-massage and stretching), as such combination managed to favor their implication to self-care and certain dimensions of psychological well-being, while attenuating the burden. Conversely, training based solely on theoretical approaches was not beneficial. Besides evidencing the usefulness of combining passive and active methodologies to favor self-care, the data provided calls for greater consideration of aspects close to philosophical perspectives like personal growth.

Dyslipidemia and its relationship with thyroid disease in farmers in the coffee-growing zone / Dislipidemia y relación con enfermedad tiroidea en agricultores de la zona cafetera

Abstract Introduction: Free thyroxine (T4), free triiodothyronine thyroid (T3) and thyroid stimulating hormone (TSH) are recognized as regulators of lipid synthesis, mobilization and degradation. Objective: To find a relationship between dyslipidemia and thyroid disease in an adult population. Methods: This was a cross-sectional study of 819 individuals. TSH, free T4, total cholesterol (TC), low-density lipoprotein cholesterol (LDL-C), high-density lipoprotein cholesterol (HDL-C), and triglycerides (TG) were measured. Results: The general population showed normal TC, normal LDL-C, low HDL-C, and elevated TG. The prevalence of dyslipidemia was as follows: elevated TC 31.9%, HDL-C <40 mg/dL 57.9%, elevated LDL-C 24.3% and TG ≥200 mg/dL 26%. The prevalence of TSH ≥4.6 mIU/L was 8.1%. The prevalence of overt hypothyroidism was 1.2%, and that of subclinical hypothyroidism was 6.7%. The prevalences of elevated TC in individuals with overt hypothyroidism and normal thyroid levels were 50.0% and 31.6%, respectively. However, in those with subclinical hypothyroidism, the prevalences were 43.6% and 31.0% (p=0.04) for elevated TC and 40.0% and 23.2% (p=0.006) for elevated LDL-C. A significant relationship was found between TSH ≥4.6 mIU/L and elevated TC (OR=1.9, p=0.01) and elevated LDL-C (OR=2.5, p=0.001); the frequency of elevated LDL-C was 2.2 times greater in people with subclinical hypothyroidism than in people with normal TSH levels. Conclusion: Given agricultural workers' particular socioeconomic conditions and access to the health system, it is important to design screening programs for biomarkers that allow early detection of changes in thyroid hormones, TSH and lipid profiles to provide this population with preventive interventions to reduce morbimortality due to cardiovascular events (Acta Med Colomb 2019; 44. DOI:https://doi.org/10.36104/amc.2019.1094).

Resumen Introducción: tiroxina libre (T4L), triyodo tironina libre (T3L) y hormona estimulante del tiroides (TSH), se reconocen como reguladoras de síntesis, movilización y degradación de lípidos. Objetivo: encontrar una relación entre dislipidemias y enfermedad tiroidea en una población adulta. Métodos: este fue un estudio de corte transversal, en 819 individuos. Se midieron TSH, T4L, colesterol total (CT), colesterol en lipoproteínas de baja densidad (C-LDL), colesterol en lipopro-teínas de alta densidad (C-HDL) y triglicéridos (TG). Resultados: la población general mostró CT, C-LDL normales, C-HDL bajo y TG elevados. La prevalencia de dislipidemia fue: CT elevado 31.9%, C-HDL < 40 mg/dL 57.9%. C-LDL alto 24.3% y TG ≥200 mg/dL, 26%. La frecuencia de TSH ≥ 4.6 mIU/L fue 8.1%. La prevalencia de hipotiroidismo manifiesto fue de 1.2% y la de hipotiroidismo subclínico de 6.7%. La prevalencia de CT elevado en individuos con hipotiroidismo manifiesto y en normales fue de 50.0% y 31.6% respectivamente. Mientras en hipotiroidismo subclínico fue de 43.6% y 31.0% p: 0.04 para CT (elevado); 40.0% y 23.2% p: 0.006 para C-LDL elevado. Se encontró relación significativa entre TSH ≥4.6 mIU/L con CT elevado (OR 1.9 p 0.01) y C-LDL elevada (OR 2.5 p: 0.001); la frecuencia de C-LDL elevado fue de 2.2 veces en personas con hipotiroidismo subclínico con relación a personas con niveles normales de TSH. Conclusión: en los trabajadores del agro, por sus particulares condiciones socioeconómicas y de acceso al sistema de salud, es importante diseñar programas de tamizaje de biomarcadores que permitan avizorar de manera precoz cambios en las hormonas tiroideas, TSH y perfil lipídico, para realizar intervenciones de prevención secundaria que contribuyan a la disminución de la morbimortalidad por eventos cardiovasculares. (Acta Med Colomb 2019; 44. DOI: https://doi.org/10.36104/amc.2019.1094).

Socioeconomic Status in Adolescents: A Study of Its Relationship with Overweight and Obesity and Influence on Social Network Configuration.

Socioeconomic status (SES) influences all the determinants of health, conditioning health throughout life. The aim of the present study was to explore the relationship between socioeconomic status and obesity in adolescence through an analysis of the patterns of contact between peers as a function of this parameter. A cross-sectional study was performed, analyzing a sample of 235 students aged 14 to 18 and 11 class networks. Social network analysis was used to analyze structural variables of centrality from a sociocentric perspective. We found that adolescents with a medium-low SES presented a two-fold higher probability of being overweight, but we did not detect any differences in the configuration of their social networks when compared with those of normal-weight adolescents. However, we did find significant differences in the formation of networks according to SES in the overall sample and disaggregated by gender, whereby adolescents with a high SES in general presented a higher capacity to form wider social networks. Elucidating the relationship between SES and overweight and its influence on social network formation can contribute to the design of preventative strategies against overweight and obesity in adolescents, since their social environment can provide them with several resources to combat excess weight.

Nutritional Composition Assessment of 3000 Individualized Parenteral Nutrition Bags in a Tertiary Referral Hospital: Current Prescribing Patterns.

Individualized parenteral nutrition is the most specialized type of nutritional support in the hospital setting. The composition and prescribing patterns for parenteral nutrition have evolved due to new emerging scientific evidence. In the last few years, there has been a tendency to increase the nitrogen and lipid content and decrease the carbohydrate content. To assess the prescribing pattern in a tertiary referral hospital in Spain, the nutritional composition of individualized parenteral nutrition was evaluated retrospectively from January to December of 2016. A total of 3029 parenteral nutrition units were analysed, corresponding to 257 hospitalized adult patients. Medical specialists in General Surgery and Haematology were the most common petitioners. The three most frequently prescribed parenteral nutrition formulae contained 13.4 (28.8%), 15.7 (19.54%) and 17.9 (17.79%) g of nitrogen. The quantity of carbohydrates and lipids showed a mean non-protein calories-to-nitrogen ratio of approximately 78:1 and a carbohydrate-to-lipid ratio that was near 50:50 in most cases. These results suggest a trend towards the administration of parenteral nutrition with a high content of nitrogen and smaller proportion of the non-protein components.

[A global vision of adverse reactions to foods: food allergy and food intolerance]. / Una visión global de las reacciones adversas a alimentos: alergia e intolerancia alimentaria.

Over the last years, there has been an increase in adverse food reactions, probably associated with life style changes in the past decades. An adverse food reaction is any clinically abnormal response that can be attributed to ingestion, contact or inhalation of a food, its derivatives or an additive contained in it. They can be classified as food allergy or intolerance. Food allergies are usually immune-mediated, associated with IgE. Adverse reactions to food have a large clinical and social repercussion, which can be fatal in some cases and impair the quality of life of patients. This implies directly the services of collective catering and food manufacturing, which is why a legislature and regulations were implemented for its correct management. The most allergenic foods change according to the age group; being the egg the most frequent in children under 5 years, and fresh fruits in the older than 5 years. The most frequent clinical manifestations are cutaneous-mucous type. Food intolerances may be due to a pharmacological, metabolic, mixed or idiosyncratic mechanism. Clinical manifestations are usually dose dependent. The most common and known food intolerance is lactose, which is a metabolic type. The main treatment of both types of adverse reaction to foods is avoidance of the causal food of the reaction.

En estos últimos años se ha evidenciado un aumento de las reacciones adversas a alimentos, probablemente asociadas a los cambios en el estilo de vida producidos en las últimas décadas. Una reacción adversa a alimentos es cualquier respuesta clínicamente anormal que puede atribuirse a la ingestión, contacto o inhalación de un alimento, de sus derivados o de uno de sus aditivos.Pueden clasificarse en alergia o intolerancia alimentaria. Las alergias alimentarias suelen tener un componente inmunológico generalmente asociado a inmunoglobulina E (IgE). Las reacciones adversas a alimentos tienen una gran repercusión tanto clínica como social y perjudican la calidad de vida de los pacientes y, en algunos casos, resultan fatales, de ahí que se implique directamente a los servicios de restauración colectiva y de manufacturación de alimentos para su correcto manejo.Los alimentos más alérgenos cambian según el grupo etario. La alergia al huevo es la más frecuente en menores de 5 años y a las frutas frescas, en los mayores de 5 años. Las manifestaciones clínicas más frecuentes son de tipo cutáneo-mucosas. Las intolerancias alimentarias pueden deberse a un mecanismo farmacológico, metabólico, mixto o idiosincrático, pero no inmunológico. Las manifestaciones clínicas suelen ser dosis dependientes, mientras que las alérgicas son dosis independientes.La intolerancia alimentaria más frecuente y conocida es la intolerancia a la lactosa, que es de tipo metabólica. El tratamiento principal para ambos tipos de reacciones adversas a alimentos consiste en evitar el alimento que causa de la reacción.

Perfil lipídico, antropométrico y condición física de estudiantes deportistas universitarios / Lipid anthropometric and physical condition profile of university athlete students

Resumen Introducción: Reconocer aspectos como perfil lipídico, composición corporal y composición física de los deportistas, puede evitar errores recurrentes en el entrenamiento deportivo. Objetivo: Establecer el perfil lipídico, antropométrico y de condición física de estudiantes pertenecientes a las selecciones deportivas de la Universidad del Quindío. Materiales y métodos: Se valoró a integrantes de 14 selecciones deportivas en sus medidas antropométricas acorde a los lineamientos de la International Society for the Avancement in Kineanthropometric (ISAK); para determinar fuerza, velocidad, resistencia y flexibilidad se aplicó diferentes test. Para establecer el perfil lipídico se utilizó kits comerciales. Resultados: La población presenta rangos normales de perfil lipídico. Respecto al perfil antropométrico, se encontró promedios de porcentaje graso sobre los considerados normales para deportistas, aunque corresponden a la normalidad de la población en general. A nivel condicional la flexibilidad fue la capacidad con promedios inferiores de los rangos considerados aceptables. Conclusión: Es necesario buscar estrategias que permitan mejorar aspectos como: niveles de porcentaje graso y flexibilidad, que en algunos participantes no están acorde con los rangos establecidos para deportistas de rendimiento.

Abstract Introduction: Recognizing aspects such as lipid profile, body composition and physical composition of athletes can avoid recurrent errors in sports training. Objective: To establish the lipid, anthropometric and physical condition profile of students belonging to the sports teams of the University of Quindío. Materials and methods: Members of 14 sports teams were valued in their anthropometric measurements according to the guidelines of the International Society for the Advancement in Kinanthropometric (ISAK). For this, different tests were applied to determine strength, speed, resistance and flexibility and commercial kits were used to establish the lipid profile. Results: The population has normal ranges of lipid profile. Regarding the anthropometric profile, averages of fat percentage were found above those that are considered normal for athletes, although they correspond to the normality of the population in general. On a conditional level, flexibility was the capacity with lower averages from those considered as acceptable ranks. Conclusions: It is necessary to look for strategies to improve aspects such as: levels of fatty percentage and flexibility, which in some participants are not in line with the established ranges for performance athletes.