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Iskalni niz: "ključne besede" (insulin) .

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1.
Pathophysiological mechanisms of reduced physical activity : insights from the human step reduction model and animal analogues
Fabio Sarto, Roberto Bottinelli, Martino V. Franchi, Simone Porcelli, Boštjan Šimunič, Rado Pišot, Marco Vicenzo Narici, 2023, pregledni znanstveni članek

Povzetek: Physical inactivity represents a heavy burden for modern societies and is spreading worldwide, it is a recognised pandemic and is the fourth cause of global mortality. Not surprisingly, there is an increasing interest in longitudinal studies on the impact of reduced physical activity on different physiological systems. This narrative review focuses on the pathophysiological mechanisms of step reduction (SR), an experimental paradigm that involves a sudden decrease in participants’ habitual daily steps to a lower level, mimicking the effects of a sedentary lifestyle. Analogous animal models of reduced physical activity, namely the “wheel-lock” and the “cage reduction” models, which can provide the foundation for human studies, are also discussed. The empirical evidence obtained thus far shows that even brief periods of reduced physical activity can lead to substantial alterations in skeletal muscle health and metabolic function. In particular, decrements in lean/muscle mass, muscle function, muscle protein synthesis, cardiorespiratory fitness, endothelial function and insulin sensitivity, together with an increased fat mass and inflammation, have been observed. Exercise interventions seem particularly effective for counteracting these pathophysiological alterations induced by periods of reduced physical activity. A direct comparison of SR with other human models of unloading, such as bed rest and lower limb suspension/immobilisation, is presented. In addition, we propose a conceptual framework aiming to unravel the mechanisms of muscle atrophy and insulin resistance in the specific context of reduced ambulatory activity. Finally, methodological considerations, knowledge gaps and future directions for both animal and human models are also discussed in the review.
Ključne besede: physical inactivity, cage reduction, insulin sensitivity, muscle atrophy
Objavljeno v DiRROS: 29.06.2023; Ogledov: 320; Prenosov: 246
.pdf Celotno besedilo (6,91 MB)
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2.
Nrf2-interacting nutrients and COVID-19 : time for research to develop adaptation strategies
Jean Bousquet, Jean-Paul Cristol, Wienczyslawa Czarlewski, Josep M. Antò i Boquè, Adrian Martineau, Tari Haahtela, Susana C. Fonseca, Guido Iaccarino, Hubert Blain, Alessandro Fiocchi, Nisera Bajrović, Natalija Edelbaher, Maja Jošt, Peter Kopač, Anja Koren, Mitja Košnik, Karmen Kramer Vrščaj, Samo Kreft, Nika Lalek, Bojan Madjar, Tonka Poplas-Susič, Irma Rozman Sinur, Tanja Soklič, Katja Triller Vadnal, Nadja Triller, Jure Urbančič, Mihaela Zidarn, 2020, pregledni znanstveni članek

Povzetek: There are large between- and within-country variations in COVID-19 death rates. Some very low death rate settings such as Eastern Asia, Central Europe, the Balkans and Africa have a common feature of eating large quantities of fermented foods whose intake is associated with the activation of the Nrf2 (Nuclear factor (erythroid-derived 2)-like 2) anti-oxidant transcription factor. There are many Nrf2-interacting nutrients (berberine, curcumin, epigallocatechin gallate, genistein, quercetin, resveratrol, sulforaphane) that all act similarly to reduce insulin resistance, endothelial damage, lung injury and cytokine storm. They also act on the same mechanisms (mTOR: Mammalian target of rapamycin, PPAR[gamma]:Peroxisome proliferator-activated receptor, NF[kappa]B: Nuclear factor kappa B, ERK: Extracellular signal-regulated kinases and eIF2[alpha]:Elongation initiation factor 2[alpha]). They may as a result be important in mitigating the severity of COVID-19, acting through the endoplasmic reticulum stress or ACE-Angiotensin-II-AT1R axis (AT1R) pathway. Many Nrf2-interacting nutrients are also interacting with TRPA1 and/or TRPV1. Interestingly, geographical areas with very low COVID-19 mortality are those with the lowest prevalence of obesity (Sub-Saharan Africa and Asia). It is tempting to propose that Nrf2-interacting foods and nutrients can re-balance insulin resistance and have a significant effect on COVID-19 severity. It is therefore possible that the intake of these foods may restore an optimal natural balance for the Nrf2 pathway and may be of interest in the mitigation of COVID-19 severity.
Ključne besede: Covid-19, SARS-CoV-2, food, insulin resistance, obesity, Nrf2, nutrients, TRPA1
Objavljeno v DiRROS: 25.01.2021; Ogledov: 1588; Prenosov: 618
.pdf Celotno besedilo (1,61 MB)

3.
Continuous glucose monitoring use and glucose variability in pre-school children with type 1 diabetes
Klemen Dovč, Kevin Cargnelutti, Anže Šturm, Julij Šelb, Nataša Bratina, Tadej Battelino, 2018, izvirni znanstveni članek

Povzetek: Aims. The objective of this nationwide population-based cohort study was to evaluate the correlation between continuous glucose monitoring (CGM) use and glucose variability in pre-schoolers with type 1 diabetes. Methods. We analysed data from the Slovenian National Registry. The primary endpoint was the difference in glucose variability between periods, during which participants were using CGM and periods, during which CGM was not used, over 5 years. Results. A total of 40 children <8 years old were followed for an estimated observational period of 116 patient/years. Mean age at CGM initiation was 3.5 (±1.7) years. Both standard deviation of mean glucose [3.6 mmol/L (3.2–3.9) with CGM and 4.3 mmol/L (3.8–4.7) without CGM, p < 0.001] and coefficient of variation [44.0% (40.4–47.0) with CGM and 46.1% (42.3–49.4) without CGM, p = 0.021] were lower during the periods, when CGM was used. Frequent CGM use (>5 days/week) was associated with a 0.4% [4.4 mmol/mol] reduction in glycated haemoglobin level (7.6% compared to 7.2%, p = 0.047). Conclusions. Our results indicate that the use of CGM was associated with reduced glucose variability during a 5 year follow-up period among pre-schoolers with type 1 diabetes.
Ključne besede: continuous glucose monitoring, type 1 diabetes, children, insulin therapy
Objavljeno v DiRROS: 12.11.2020; Ogledov: 1240; Prenosov: 790
.pdf Celotno besedilo (738,73 KB)
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4.
Uporaba glukokortikoidov in sladkorna bolezen
Marjan Kristanc, 2003, strokovni članek

Ključne besede: sladkorna bolezen, zdravljenje, glukoza, insulin, zdravila
Objavljeno v DiRROS: 19.05.2016; Ogledov: 3893; Prenosov: 663
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