A review of the literature on the use of probiotics to treat irritable bowel syndrome and inflammatory bowel disease

Introducción: el síndrome de intestino irritable (SII) y la enfermedad inflamatoria intestinal (EII), son motivos de consulta frecuente. Usualmente su tratamiento se hace en primer nivel de atención, con ajuste de estilo de vida y cambios dietéticos. Los tratamientos farmacológicos tienen eficacia limitada e importantes efectos secundarios, por lo que existe un interés creciente en terapias diferentes, como el uso de probióticos. Métodos: se realizó una revisión de la literatura en las bases de datos Medline y Embase buscando estudios que asociaran suplementos nutricionales con SII o EII, haciendo énfasis en probióticos. Resultados: de un total de 1598 referencias, 43 cumplieron criterios finales de inclusión. El uso de probióticos en SII y EII sugiere ser una terapia que ayuda a mantener los períodos de remisión de la enfermedad, mejorar la calidad de vida y atenuar el proceso fisiopatológico. Conclusiones: el uso de probióticos y prebióticos podría ser una alternativa de soporte nutricional en pacientes seleccionados.Q4Revisión de tema141-149Introduction: Irritable bowel syndrome (IBS) and inflammatory bowel disease (IBD) are frequent reasons for medical consultation. Usually they are treated at the first level of attention with adjustment of lifestyle and dietary changes. Pharmacological treatments have limited efficacy and significant side effects, so there is growing interest in other therapies such as the use of probiotics. Methods: This is literature review of studies associating nutritional supplements with IBS or IBD that have an emphasis on probiotics and which found in the Medline and Embase databases. Results: Of a total of 1,598 references, 43 met the final inclusion criteria. The use of probiotics in IBS and IBD suggests a therapy that helps maintain periods of disease remission, improvement of quality of life and attenuation of the pathophysiological process. Conclusions: The use of probiotics and prebiotics could be alternative nutritional support for selected patients

Mitochondrial physiology

As the knowledge base and importance of mitochondrial physiology to evolution, health and disease expands, the necessity for harmonizing the terminology concerning mitochondrial respiratory states and rates has become increasingly apparent. The chemiosmotic theory establishes the mechanism of energy transformation and coupling in oxidative phosphorylation. The unifying concept of the protonmotive force provides the framework for developing a consistent theoretical foundation of mitochondrial physiology and bioenergetics. We follow the latest SI guidelines and those of the International Union of Pure and Applied Chemistry (IUPAC) on terminology in physical chemistry, extended by considerations of open systems and thermodynamics of irreversible processes. The concept-driven constructive terminology incorporates the meaning of each quantity and aligns concepts and symbols with the nomenclature of classical bioenergetics. We endeavour to provide a balanced view of mitochondrial respiratory control and a critical discussion on reporting data of mitochondrial respiration in terms of metabolic flows and fluxes. Uniform standards for evaluation of respiratory states and rates will ultimately contribute to reproducibility between laboratories and thus support the development of data repositories of mitochondrial respiratory function in species, tissues, and cells. Clarity of concept and consistency of nomenclature facilitate effective transdisciplinary communication, education, and ultimately further discovery

Production of He-4 and (4) in Pb-Pb collisions at root(NN)-N-S=2.76 TeV at the LHC

Results on the production of He-4 and (4) nuclei in Pb-Pb collisions at root(NN)-N-S = 2.76 TeV in the rapidity range vertical bar y vertical bar <1, using the ALICE detector, are presented in this paper. The rapidity densities corresponding to 0-10% central events are found to be dN/dy4(He) = (0.8 +/- 0.4 (stat) +/- 0.3 (syst)) x 10(-6) and dN/dy4 = (1.1 +/- 0.4 (stat) +/- 0.2 (syst)) x 10(-6), respectively. This is in agreement with the statistical thermal model expectation assuming the same chemical freeze-out temperature (T-chem = 156 MeV) as for light hadrons. The measured ratio of (4)/He-4 is 1.4 +/- 0.8 (stat) +/- 0.5 (syst). (C) 2018 Published by Elsevier B.V.Peer reviewe

Dietary supplements as modifiers of cardiovascular risk in components of the metabolic syndrome in adults

Objetivo analizar los suplementos nutricionales con ácidos grasos de cadena larga, micronutrientes y antioxidantes en la población adulta, como posibles modificadores del riesgo cardiovascular en pacientes con diagnóstico de síndrome metabólico, o alguno de sus componentes. Métodos Se realizó una revisión de la literatura en las bases de datos Medline y Embase, utilizando los términos “Metabolic Syndrome” AND “Dietary supplements” y ‘Metabolic Syndrome’/exp AND ‘Dietary supplement’/exp, respectivamente, sobre el papel de los suplementos nutricionales en la modificación del riesgo cardiovascular en adultos con síndrome metabólico o alguno de sus componentes. Resultados De 475 artículos depurados, se seleccionaron 37 que estudiaran el posible beneficio de los suplementos nutricionales en el síndrome metabólico. Algunos estudios muestran un potencial de ácidos grasos de cadena larga y antioxidantes (vitamina D, vitamina E) para reducir el riesgo cardiovascular de pacientes con síndrome metabólico, evidenciado en la reducción de parámetros como colesterol total, glucemia, índice de masa corporal y perímetro abdominal. Conclusión El uso de suplementos nutricionales con ácidos grasos de cadena larga y antioxidante podría tener efectos benéficos en la disminución de riesgo cardiovascular en pacientes con diagnóstico de síndrome metabólico o alguno de sus componentes. El uso de suplementos con otros componentes debe estudiarse a mayor profundidad para efectuar recomendaciones.Q4Revisión de tema277-285Objective: To analyze dietary supplements with long chain fatty acids, micronutrients and antioxidants in adult population as possible modifiers of cardiovascular risk in patients diagnosed with metabolic syndrome or any of its components. Methods: Literature review of databases Medline and Embase using terms ‘‘Metabolic Syndrome’’ AND ‘‘Dietary supplements’’ and ‘Metabolic Syndrome’/exp AND ‘Dietary supplement’/ exp, respectively, on the role of dietary supplements in modifying cardiovascular risk in adults with metabolic syndrome or any of its components. Results: Out of 475 articles, the 37 selected studied the possible benefit of dietary supplements in metabolic syndrome. Some studies reveal a potential in long chain fatty acids and antioxidants (vitamin D, vitamin E) in reducing cardiovascular risk of patients with metabolic syndrome, evidenced in the decrease of parameters such as total cholesterol, blood sugar, body mass index and abdominal perimeter. Conclusion: The use of dietary supplements with long chain fatty acids and antioxidants could have beneficial effects in reducing cardiovascular risk in patients diagnosed with metabolic syndrome or any of its components. The use of supplements with other components must be studied more deeply to make further recommendations

Multiplicity dependence of light (anti-)nuclei production in p–Pb collisions at sNN=5.02 TeV

The measurement of the deuteron and anti-deuteron production in the rapidity range −1 < y < 0 as a function of transverse momentum and event multiplicity in p–Pb collisions at √sNN = 5.02 TeV is presented. (Anti-)deuterons are identified via their specific energy loss dE/dx and via their time-of- flight. Their production in p–Pb collisions is compared to pp and Pb–Pb collisions and is discussed within the context of thermal and coalescence models. The ratio of integrated yields of deuterons to protons (d/p) shows a significant increase as a function of the charged-particle multiplicity of the event starting from values similar to those observed in pp collisions at low multiplicities and approaching those observed in Pb–Pb collisions at high multiplicities. The mean transverse particle momenta are extracted from the deuteron spectra and the values are similar to those obtained for p and particles. Thus, deuteron spectra do not follow mass ordering. This behaviour is in contrast to the trend observed for non-composite particles in p–Pb collisions. In addition, the production of the rare 3He and 3He nuclei has been studied. The spectrum corresponding to all non-single diffractive p-Pb collisions is obtained in the rapidity window −1 < y < 0 and the pT-integrated yield dN/dy is extracted. It is found that the yields of protons, deuterons, and 3He, normalised by the spin degeneracy factor, follow an exponential decrease with mass number

Reproducibility of fluorescent expression from engineered biological constructs in E. coli

We present results of the first large-scale interlaboratory study carried out in synthetic biology, as part of the 2014 and 2015 International Genetically Engineered Machine (iGEM) competitions. Participants at 88 institutions around the world measured fluorescence from three engineered constitutive constructs in E. coli. Few participants were able to measure absolute fluorescence, so data was analyzed in terms of ratios. Precision was strongly related to fluorescent strength, ranging from 1.54-fold standard deviation for the ratio between strong promoters to 5.75-fold for the ratio between the strongest and weakest promoter, and while host strain did not affect expression ratios, choice of instrument did. This result shows that high quantitative precision and reproducibility of results is possible, while at the same time indicating areas needing improved laboratory practices.Peer reviewe

Measuring KS0^0_{\rm S}K±^{\rm \pm} interactions using Pb-Pb collisions at sNN=2.76{\sqrt{s_{\rm NN}}=2.76} TeV

We present the first ever measurements of femtoscopic correlations between the KS0 and K ± particles. The analysis was performed on the data from Pb–Pb collisions at sNN=2.76 TeV measured by the ALICE experiment. The observed femtoscopic correlations are consistent with final-state interactions proceeding via the a0(980) resonance. The extracted kaon source radius and correlation strength parameters for KS0K− are found to be equal within the experimental uncertainties to those for KS0K+ . Comparing the results of the present study with those from published identical-kaon femtoscopic studies by ALICE, mass and coupling parameters for the a0 resonance are tested. Our results are also compatible with the interpretation of the a0 having a tetraquark structure instead of that of a diquark

Measurement of D-meson production at mid-rapidity in pp collisions at s=7{\sqrt{s}=7} TeV

The production cross sections for prompt charmed mesons $\mathrm{D^0}$ , $\mathrm{D^+}$ , $\mathrm{D^{*+}}$ and $\mathrm{D_s^+}$ were measured at mid-rapidity in proton–proton collisions at a centre-of-mass energy $\sqrt{s}=7~{\mathrm {TeV}}$ with the ALICE detector at the Large Hadron Collider (LHC). D mesons were reconstructed from their decays $\mathrm{D}^0 \rightarrow \mathrm{K}^-\pi ^+$ , $\mathrm{D}^+\rightarrow \mathrm{K}^-\pi ^+\pi ^+$ , $\mathrm{D}^{*+} \rightarrow \mathrm{D}^0 \pi ^+$ , $\mathrm{D_s^{+}\rightarrow \phi \pi ^+\rightarrow K^-K^+\pi ^+}$ , and their charge conjugates.With respect to previous measurements in the same rapidity region, the coverage in transverse momentum ( $p_\mathrm{T}$ ) is extended and the uncertainties are reduced by a factor of about two. The accuracy on the estimated total $\mathrm{c}{\overline{\mathrm{c}}}$ production cross section is likewise improved. The measured $p_\mathrm{T}$ -differential cross sections are compared with the results of three perturbative QCD calculations