74 research outputs found
Słowa z obszarów tabuizowanych w świadomości cudzoziemców uczących się języka polskiego
Zjawisko tabu odgrywa ważną rolę w metodyce nauczania języków obcych. Celem artykułu jest zbadanie świadomości istnienia tabu w języku polskim i zakresów tematycznych, które to tabu obejmuje, wśród studentów uczących się języka polskiego na poziomie średnim i zaawansowanym. Autorki, na podstawie sondażowych badań ankietowych, sprawdziły znajomość słów tabuizowanych z wybranych pól tematycznych, takich jak śmierć, choroba, części ciała czy erotyka. Warto zaznaczyć, że przeprowadzona ankieta wzbudziła wśród respondentów wiele emocji i stała się punktem wyjścia do rozważań na temat tabu i wulgaryzmów w języku polskim. Studenci podkreślali, że to właśnie braki w słownictwie doprowadzają do nieporozumień lub blokady komunikacyjnej.The phenomenon of the taboo plays a crucial role in the methodology of the Polish language teaching. The aim of this article is to examine the existence of the taboos in the Polish language and the topic areas in which it is present, among intermediate and advanced students of Polish. Using a survey, the authors of the article checked students’ knowledge of taboo words in selected topic areas, such as death, illness, parts of the body, or erotica. It is worth mentioning that the survey brought about various emotions in the respondents and became a starting point to reflect on taboos and vulgarisms in Polish language. The students indicated that deficiencies in vocabulary indeed lead to misunderstandings and hinder communication
Longitudinal Multimodal fMRI to Investigate Neurovascular Changes in Spontaneously Hypertensive Rats
Hypertension is an important risk factor for age‐related cognitive decline and neuronal pathologies. Studies have shown a correlation between hypertension, disruption in neurovascular coupling and cerebral autoregulation, and cognitive decline. However, the mechanisms behind this are unclear. To further understand this, it is advantageous to study neurovascular coupling as hypertension progresses in a rodent model. Here, we use a longitudinal functional MRI (fMRI) protocol to assess the impact of hypertension on neurovascular coupling in spontaneously hypertensive rats (SHRs). Eight female SHRs were studied at 2, 4, and 6 months of age, as hypertension progressed. Under an IV infusion of propofol, animals underwent fMRI, functional MR spectroscopy, and cerebral blood flow (CBF) quantification to study changes in neurovascular coupling over time. Blood pressure significantly increased at 4 and 6 months (P < .0001). CBF significantly increased at 4 months old (P < .05), in the acute stage of hypertension. The size of the active region decreased significantly at 6 months old (P < .05). Change in glutamate signal during activation, and N‐acetyl‐aspartate (NAA) signal, remained constant. This study shows that, while cerebral autoregulation is impaired in acute hypertension, the blood oxygenation‐level‐dependent (BOLD) response remains unaltered until later stages. At this stage, the consistent NAA and glutamate signals show that neuronal death has not occurred, and that neuronal activity is not affected at this stage. This suggests that neuronal activity and viability is not lost until much later, and changes observed here in BOLD activity are due to vascular effects
A longitudinal, multi-parametric functional MRI study to determine age-related changes in the rodent brain
As the population ages, the incidence of age-related neurological diseases and cognitive decline increases. To further understand disease-related changes in brain function it is advantageous to examine brain activity changes in healthy aging rodent models to permit mechanistic investigation. Here, we examine the suitability, in rodents, of using a novel, minimally invasive anaesthesia protocol in combination with a functional MRI protocol to assess alterations in neuronal activity due to physiological aging. 11 Wistar Han female rats were studied at 7, 9, 12, 15 and 18 months of age. Under an intravenous infusion of propofol, animals underwent functional magnetic resonance imaging (fMRI) and functional magnetic resonance spectroscopy (fMRS) with forepaw stimulation to quantify neurotransmitter activity, and resting cerebral blood flow (CBF) quantification using arterial spin labelling (ASL) to study changes in neurovascular coupling over time. Animals showed a significant decrease in size of the active region with age (P [less than] 0.05). fMRS results showed a significant decrease in glutamate change with stimulation (?Glu) with age (P < 0.05), and ?Glu became negative from 12 months onwards. Global CBF remained constant for the duration of the study. This study shows age related changes in the blood oxygen level dependent (BOLD) response in rodents that correlate with those seen in humans. The results also suggest that a reduction in synaptic glutamate turnover with age may underlie the reduction in the BOLD response, while CBF is preserved
Podstawy medycyny personalizowanej raka jelita grubego
Personalised treatment which is a dynamically developing branch of medicine, is based on individualisation of diagnostic and therapeutic procedures. Its aim is to optimise treatment by increasing therapy effectiveness, while minimising side effects. It is designed both for patients with a diagnosed hereditary cancer syndrome, as well as those with sporadic cancers. In the case of a diagnosed colorectal cancer, personalised treatment requires patient selection based on predictive factors. This involves determination of the genetic status within the epidermal growth factor receptor (EGFR) signalling pathway, including assessment of the cancer tissue genotype with respect to RAS gene mutations (KRAS, NRAS) and BRAF gene mutations. In patients who do not respond to anti-EGFR targeted therapy, chemotherapy aimed at vascular endothelial growth factor (VEGF) is introduced. In personalised medicine it is also essential to introduce prophylactic and therapeutic measures, both in carriers of germline mutations, and members of their families who have not been diagnosed with this mutation, but who meet family history and clinical criteria of hereditary cancer syndrome.Leczenie personalizowane, jako dynamicznie rozwijająca się gałąź medycyny, opiera się na indywidualizacji postępowania diagnostycznego oraz terapeutycznego. Ma na celu optymalizowanie leczenia dzięki zwiększeniu skuteczności terapii, przy jednoczesnym zminimalizowaniu działań niepożądanych. Przeznaczone jest zarówno dla pacjentów z rozpoznanym dziedzicznym zespołem predyspozycji do nowotworów, jak i pacjentów z nowotworami sporadycznymi. Założenia leczenia personalizowanego w przypadku rozpoznania raka jelita grubego wymagają selekcji chorych na podstawie czynników predykcyjnych. To oznacza, że należy określić status genetyczny w obrębie szlaku sygnałowego receptora naskórkowego czynnika wzrostu (EGFR), w tym ocenić genotyp tkanki nowotworowej pod kątem mutacji genów RAS (KRAS, NRAS) oraz genu BRAF. U pacjentów niewrażliwych na chemioterapię zawierającą elementy anty-EGFR do leczenia wprowadza się chemioterapię, której celem jest czynnik wzrostu śródbłonka naczyniowego (VEGF). W medycynie personalizowanej istotne jest również wdrożenie działań profilaktyczno-terapeutycznych, zarówno u nosicieli mutacji germinalnych (dziedzicznych), jak i u członków rodzin, w których mutacja taka nie została zidentyfikowana, spełnione są natomiast kryteria rodowodowo-kliniczne, które pozwalają na rozpoznanie zespołu dziedzicznej predyspozycji do nowotworów
Impact of perioperative infarcts after cardiac surgery
Background and Purpose: Brain injury after cardiac surgery is a serious concern for patients and their families. The purpose of this study was to use 3-T fluid attenuated inversion recovery MRI to characterize new and preexisting cerebral ischemic lesions in patients undergoing cardiac surgery and to test whether the accumulation of new ischemic lesions adversely affects cognition.
Methods: Digital comparison of before and after fluid attenuated inversion recovery MRI images was performed for 77 cardiac surgery patients. The burden of preexisting versus new ischemic lesions was quantified and compared with the results of baseline and postoperative neuropsychological testing.
Results: After surgery, new lesions were identified in 31% of patients, averaging 0.5 lesions per patient (67 mm3 [0.004%] of brain tissue). Patients with preexisting lesions were 10× more likely to receive new lesions after surgery than patients without preexisting lesions. Preexisting ischemic lesions were observed in 64% of patients, averaging 19.4 lesions (1542 mm3 [0.1%] of brain tissue). New lesions in the left hemisphere were significantly smaller and more numerous (29 lesions; median volume, 44 mm3; volume range, 5–404 mm3) than those on the right (10 lesions; median volume, 128 mm3; volume range, 13–1383 mm3), which is consistent with a cardioembolic source of particulate emboli. Overall, the incidence of postoperative cognitive decline was 46% and was independent of whether new lesions were present.
Conclusions: New lesions after cardiac surgery added a small (≈4%) contribution to the burden of preexisting cerebrovascular disease and did not seem to affect cognitive function
A distinct septal pattern of late gadolinium enhancement specific for COVID-induced myocarditis: A multicenter cardiovascular magnetic resonance study
BACKGROUND: Coronavirus disease-19 (COVID-19) is a great medical challenge provoking acute respiratory distress, pulmonary manifestations, and cardiovascular (CV) consequences. AIMS: This study compares cardiac injury in COVID-19 myocarditis patients with non-COVID myocarditis patients.
METHODS: Patients who recovered from COVID-19 were scheduled for cardiovascular magnetic resonance (CMR) owing to clinical myocarditis suspicion. The retrospective non-COVID-19 myocarditis (2018-2019) group was enrolled (n=221 patients). All patients underwent a contrast-enhanced CMR, conventional myocarditis protocol, and late gadolinium enhancement (LGE). The COVID study group included 552 patients with a mean (standard deviation [SD]) age 45.9 (12.6) years old.
RESULTS: CMR assessment confirmed a myocarditis-like LGE in 46% of the cases (68.5% of the segments with LGE <25% transmural extent), left ventricular (LV) dilatation in 10%, and systolic dysfunction in 16%. The COVID-myocarditis group showed a smaller median (interquartile range [IQR]) LV LGE (4.4% [2.9%–8.1%] vs. 5.9% [4.4%–11.8%]; P <0.001), lower LVEDV (144.6 [125.5–178] ml vs. 162.8 [136.6–194] ml; P <0.001), limited functional consequence (LVEF, 59% [54.1%–65%] vs. 58% [52%–63%]; P = 0.01), and a higher rate of pericarditis (13.6% vs. 6%; P = 0.03) compared to non-COVID myocarditis. The COVID-induced injury was more frequent in septal segments (2, 3, 14), and non-COVID myocarditis showed higher affinity to lateral wall segments (P <0.01). Neither obesity nor age was associated with LV injury or remodeling in subjects with COVID-myocarditis.
CONCLUSIONS: COVID-19-induced myocarditis is associated with minor LV injury with a significantly more frequent septal pattern and a higher pericarditis rate than non-COVID-19 myocarditis
Worldwide trends in underweight and obesity from 1990 to 2022: a pooled analysis of 3663 population-representative studies with 222 million children, adolescents, and adults
Background Underweight and obesity are associated with adverse health outcomes throughout the life course. We
estimated the individual and combined prevalence of underweight or thinness and obesity, and their changes, from
1990 to 2022 for adults and school-aged children and adolescents in 200 countries and territories.
Methods We used data from 3663 population-based studies with 222 million participants that measured height and
weight in representative samples of the general population. We used a Bayesian hierarchical model to estimate
trends in the prevalence of different BMI categories, separately for adults (age ≥20 years) and school-aged children
and adolescents (age 5–19 years), from 1990 to 2022 for 200 countries and territories. For adults, we report the
individual and combined prevalence of underweight (BMI <18·5 kg/m2) and obesity (BMI ≥30 kg/m2). For schoolaged children and adolescents, we report thinness (BMI <2 SD below the median of the WHO growth reference)
and obesity (BMI >2 SD above the median).
Findings From 1990 to 2022, the combined prevalence of underweight and obesity in adults decreased in
11 countries (6%) for women and 17 (9%) for men with a posterior probability of at least 0·80 that the observed
changes were true decreases. The combined prevalence increased in 162 countries (81%) for women and
140 countries (70%) for men with a posterior probability of at least 0·80. In 2022, the combined prevalence of
underweight and obesity was highest in island nations in the Caribbean and Polynesia and Micronesia, and
countries in the Middle East and north Africa. Obesity prevalence was higher than underweight with posterior
probability of at least 0·80 in 177 countries (89%) for women and 145 (73%) for men in 2022, whereas the converse
was true in 16 countries (8%) for women, and 39 (20%) for men. From 1990 to 2022, the combined prevalence of
thinness and obesity decreased among girls in five countries (3%) and among boys in 15 countries (8%) with a
posterior probability of at least 0·80, and increased among girls in 140 countries (70%) and boys in 137 countries (69%)
with a posterior probability of at least 0·80. The countries with highest combined prevalence of thinness and
obesity in school-aged children and adolescents in 2022 were in Polynesia and Micronesia and the Caribbean for
both sexes, and Chile and Qatar for boys. Combined prevalence was also high in some countries in south Asia, such
as India and Pakistan, where thinness remained prevalent despite having declined. In 2022, obesity in school-aged
children and adolescents was more prevalent than thinness with a posterior probability of at least 0·80 among girls
in 133 countries (67%) and boys in 125 countries (63%), whereas the converse was true in 35 countries (18%) and
42 countries (21%), respectively. In almost all countries for both adults and school-aged children and adolescents,
the increases in double burden were driven by increases in obesity, and decreases in double burden by declining
underweight or thinness.
Interpretation The combined burden of underweight and obesity has increased in most countries, driven by an
increase in obesity, while underweight and thinness remain prevalent in south Asia and parts of Africa. A healthy
nutrition transition that enhances access to nutritious foods is needed to address the remaining burden of
underweight while curbing and reversing the increase in obesit
Height and body-mass index trajectories of school-aged children and adolescents from 1985 to 2019 in 200 countries and territories: a pooled analysis of 2181 population-based studies with 65 million participants
Summary Background Comparable global data on health and nutrition of school-aged children and adolescents are scarce. We aimed to estimate age trajectories and time trends in mean height and mean body-mass index (BMI), which measures weight gain beyond what is expected from height gain, for school-aged children and adolescents. Methods For this pooled analysis, we used a database of cardiometabolic risk factors collated by the Non-Communicable Disease Risk Factor Collaboration. We applied a Bayesian hierarchical model to estimate trends from 1985 to 2019 in mean height and mean BMI in 1-year age groups for ages 5–19 years. The model allowed for non-linear changes over time in mean height and mean BMI and for non-linear changes with age of children and adolescents, including periods of rapid growth during adolescence. Findings We pooled data from 2181 population-based studies, with measurements of height and weight in 65 million participants in 200 countries and territories. In 2019, we estimated a difference of 20 cm or higher in mean height of 19-year-old adolescents between countries with the tallest populations (the Netherlands, Montenegro, Estonia, and Bosnia and Herzegovina for boys; and the Netherlands, Montenegro, Denmark, and Iceland for girls) and those with the shortest populations (Timor-Leste, Laos, Solomon Islands, and Papua New Guinea for boys; and Guatemala, Bangladesh, Nepal, and Timor-Leste for girls). In the same year, the difference between the highest mean BMI (in Pacific island countries, Kuwait, Bahrain, The Bahamas, Chile, the USA, and New Zealand for both boys and girls and in South Africa for girls) and lowest mean BMI (in India, Bangladesh, Timor-Leste, Ethiopia, and Chad for boys and girls; and in Japan and Romania for girls) was approximately 9–10 kg/m2. In some countries, children aged 5 years started with healthier height or BMI than the global median and, in some cases, as healthy as the best performing countries, but they became progressively less healthy compared with their comparators as they grew older by not growing as tall (eg, boys in Austria and Barbados, and girls in Belgium and Puerto Rico) or gaining too much weight for their height (eg, girls and boys in Kuwait, Bahrain, Fiji, Jamaica, and Mexico; and girls in South Africa and New Zealand). In other countries, growing children overtook the height of their comparators (eg, Latvia, Czech Republic, Morocco, and Iran) or curbed their weight gain (eg, Italy, France, and Croatia) in late childhood and adolescence. When changes in both height and BMI were considered, girls in South Korea, Vietnam, Saudi Arabia, Turkey, and some central Asian countries (eg, Armenia and Azerbaijan), and boys in central and western Europe (eg, Portugal, Denmark, Poland, and Montenegro) had the healthiest changes in anthropometric status over the past 3·5 decades because, compared with children and adolescents in other countries, they had a much larger gain in height than they did in BMI. The unhealthiest changes—gaining too little height, too much weight for their height compared with children in other countries, or both—occurred in many countries in sub-Saharan Africa, New Zealand, and the USA for boys and girls; in Malaysia and some Pacific island nations for boys; and in Mexico for girls. Interpretation The height and BMI trajectories over age and time of school-aged children and adolescents are highly variable across countries, which indicates heterogeneous nutritional quality and lifelong health advantages and risks
Rising rural body-mass index is the main driver of the global obesity epidemic in adults
Body-mass index (BMI) has increased steadily in most countries in parallel with a rise in the proportion of the population who live in cities(.)(1,2) This has led to a widely reported view that urbanization is one of the most important drivers of the global rise in obesity(3-6). Here we use 2,009 population-based studies, with measurements of height and weight in more than 112 million adults, to report national, regional and global trends in mean BMI segregated by place of residence (a rural or urban area) from 1985 to 2017. We show that, contrary to the dominant paradigm, more than 55% of the global rise in mean BMI from 1985 to 2017-and more than 80% in some low- and middle-income regions-was due to increases in BMI in rural areas. This large contribution stems from the fact that, with the exception of women in sub-Saharan Africa, BMI is increasing at the same rate or faster in rural areas than in cities in low- and middle-income regions. These trends have in turn resulted in a closing-and in some countries reversal-of the gap in BMI between urban and rural areas in low- and middle-income countries, especially for women. In high-income and industrialized countries, we noted a persistently higher rural BMI, especially for women. There is an urgent need for an integrated approach to rural nutrition that enhances financial and physical access to healthy foods, to avoid replacing the rural undernutrition disadvantage in poor countries with a more general malnutrition disadvantage that entails excessive consumption of low-quality calories.Peer reviewe
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