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- Kanai, M, et al.
(author)
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- 2023
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swepub:Mat__t
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- Mishra, A, et al.
(author)
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Diminishing benefits of urban living for children and adolescents' growth and development
- 2023
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In: Nature. - : Springer Science and Business Media LLC. - 1476-4687 .- 0028-0836. ; 615:7954, s. 874-883
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Journal article (peer-reviewed)abstract
- Optimal growth and development in childhood and adolescence is crucial for lifelong health and well-being1–6. Here we used data from 2,325 population-based studies, with measurements of height and weight from 71 million participants, to report the height and body-mass index (BMI) of children and adolescents aged 5–19 years on the basis of rural and urban place of residence in 200 countries and territories from 1990 to 2020. In 1990, children and adolescents residing in cities were taller than their rural counterparts in all but a few high-income countries. By 2020, the urban height advantage became smaller in most countries, and in many high-income western countries it reversed into a small urban-based disadvantage. The exception was for boys in most countries in sub-Saharan Africa and in some countries in Oceania, south Asia and the region of central Asia, Middle East and north Africa. In these countries, successive cohorts of boys from rural places either did not gain height or possibly became shorter, and hence fell further behind their urban peers. The difference between the age-standardized mean BMI of children in urban and rural areas was <1.1 kg m–2 in the vast majority of countries. Within this small range, BMI increased slightly more in cities than in rural areas, except in south Asia, sub-Saharan Africa and some countries in central and eastern Europe. Our results show that in much of the world, the growth and developmental advantages of living in cities have diminished in the twenty-first century, whereas in much of sub-Saharan Africa they have amplified.
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- Bousquet, J, et al.
(author)
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Nrf2-interacting nutrients and COVID-19: time for research to develop adaptation strategies
- 2020
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In: Clinical and translational allergy. - : Wiley. - 2045-7022. ; 10:1, s. 58-
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Journal article (peer-reviewed)abstract
- 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, PPARγ:Peroxisome proliferator-activated receptor, NFκB: Nuclear factor kappa B, ERK: Extracellular signal-regulated kinases and eIF2α:Elongation initiation factor 2α). 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.
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- Cheng, LT, et al.
(author)
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Sex difference in the prevalence of left ventricular hypertrophy in dialysis patients
- 2009
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In: American journal of nephrology. - : S. Karger AG. - 1421-9670 .- 0250-8095. ; 29:5, s. 398-405
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Journal article (peer-reviewed)abstract
- <i>Background:</i> Left ventricular hypertrophy (LVH) is an important, independent negative predictor of cardiovascular morbidity and mortality in the general population and in dialysis patients. Previous studies suggest a sex dimorphism in the prevalence of LVH; however, this issue has never been approached in dialysis patients. <i>Methods:</i> This study enrolled 237 prevalent dialysis patients: 49 on hemodialysis (HD) and 188 on peritoneal dialysis (PD) from a single center. LVH was defined by echocardiography measurements, which were normalized to body surface area (BSA) and height<sup>2.7</sup>, respectively. <i>Results:</i> The mean ages in HD and PD patients were 60 ± 14 and 60 ± 13 years, with a median dialysis vintage of 43 and 20 months, respectively. Although there was no significant difference in age, diabetes, proportion of uncontrolled hypertension, antihypertensive medication and blood pressure between male and female patients within each dialysis modality, the prevalence of LVH (whether indexed to BSA or height<sup>2.7</sup>) was consistently higher in females than in males. When these patients were divided into LVH or non-LVH groups, a significant difference in sex distribution was observed between the two groups (62.0% vs. 41.0% when the BSA-indexed standard was used, p < 0.01; 62.8% vs. 37.1% when the height<sup>2.7</sup>-indexed standard was used, p < 0.001). In logistic regression analysis, female sex was identified as a risk factor of LVH (odds ratio, OR = 2.48, 95% confidence interval, CI = 1.33–4.59; when BSA-indexed LVH was treated as dependent variable, and OR = 4.05, 95% CI = 1.96–8.38, when height<sup>2.7</sup>-indexed LVH was treated as dependent variable) even after adjustment for age, diabetes, blood pressure and antihypertensive medication. <i>Conclusion:</i> This study showed that the prevalence of LVH determined by echocardiography was significantly higher in female dialysis patients than in male dialysis patients. Compared with males, female patients had a 2.5- to 4-fold higher risk to develop LVH even after adjustment for other potential confounding factors, which may indicate that elderly females in the uremic scenario are more prone to develop LVH than elderly males.
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