Introduction: Sleep disorders are common among shift workers and those who work under stressful and unpredictable conditions. Sleep quality and its promotion in paramedics are understudied. Objective: The study aimed to investigate the quality of sleep in emergency medical service workers, to compare certain relationships between variables (gender, age, length of experience), and to assess whether a cut-off score of 10 is appropriate for the discriminatory ability of the selected instrument in the Czech clinical setting. Design: A cross-sectional study. Methods: Data were obtained using the Pittsburgh Sleep Quality Index (PSQI). The sample comprised 191 paramedics. Data were analyzed using selected statistical methods. Results: The mean PSQI total score was 7.45 (SD 3.60). The lowest scoring component was sleep duration (1.45; SD 1.01). There was no relationship between sleep quality and gender. With respect to age, two components, sleep disturbances and daytime dysfunction, were found to be significant (p < 0.05). Regarding the length of experience, daytime dysfunction was identified as a significant component. The PSQI total parameter with a cut-off of 10 (PSQI total ≤10 good sleep; PSQI total >10 poor sleep) was confirmed to be suitable for discriminating the subjectively perceived sleep quality in paramedics. Conclusion: The study demonstrates that sleep quality is compromised in paramedics. Impaired sleep quality has the greatest impact on daytime dysfunction in paramedics. The PSQI, with a cut-off score of 10, is an appropriate instrument for assessing their sleep disturbances.

• MeSH
• kvalita spánku MeSH
• lidé MeSH
• poruchy cirkadiánního rytmu (spánek) * MeSH
• práce na směny MeSH
• průzkumy a dotazníky MeSH
• zdravotničtí záchranáři MeSH
• Check Tag
• lidé MeSH
• Geografické názvy
• Česká republika MeSH

Vysokoškolský pracovní sešit obsahující protokoly z oboru fyziologie.

• MeSH
• fyziologie MeSH

• Konspekt
• Fyziologie člověka a srovnávací fyziologie
• Učební osnovy. Vyučovací předměty. Učebnice
• NLK Obory
• fyziologie
• NLK Publikační typ
• učebnice vysokých škol
• pracovní sešity
• protokoly

Diabetes mellitus 2 (DM2) is the seventh cause of death worldwide. One of the reasons is late diagnosis of vascular damage. Pulse wave velocity (PWV) has become an independent marker of arterial stiffness and cardiovascular risk. Moreover, the previous studies have shown the importance of beat-to-beat PWV measurement due to its variability among the heart cycle. However, variability of PWV (PWVv) of the whole body hasn't been examined yet. We have studied a group of DM II and heathy volunteers, to investigate the beat-to-beat mean PWV (PWVm) and PWVv in the different body positions. PWV of left lower and upper extremities were measured in DM2 (7 m/8 f, age 68+/-10 years, BP 158/90+/-19/9 mm Hg) and healthy controls (5 m/6 f, age 23+/-2 years, BP 117/76+/-9/5 mm Hg). Volunteers were lying in the resting position and of head-up-tilt in 45° (HUT) for 6 min. PWVv was evaluated as a mean power spectrum in the frequency bands LF and HF (0.04-0.15 Hz, 0.15-0.5 Hz). Resting PWVm of upper extremity was higher in DM2. HUT increased lower extremity PWVm only in DM2. Extremities PWVm ratio was significantly lower in DM2 during HUT compared to controls. LF and HF PWVv had the same response to HUT. Resting PWVv was higher in DM2. Lower extremity PWVv increased during HUT in both groups. PWVm and PWVv in DM2 differed between extremities and were significantly influenced by postural changes due to hydrostatic pressure. Increased resting PWVm and PWVv in DM2 is a marker of increased arterial stiffness.

• MeSH
• analýza pulzové vlny metody   MeSH
• diabetes mellitus 2. typu metabolismus   patologie   MeSH
• dospělí MeSH
• lidé MeSH
• mladý dospělý MeSH
• nemoci cév diagnóza   metabolismus   patologie   MeSH
• postura těla fyziologie   MeSH
• rychlost toku krve fyziologie   MeSH
• senioři MeSH
• srdeční frekvence fyziologie   MeSH
• studie případů a kontrol MeSH
• tuhost cévní stěny MeSH
• Check Tag
• dospělí MeSH
• lidé MeSH
• mladý dospělý MeSH
• mužské pohlaví MeSH
• senioři MeSH
• ženské pohlaví MeSH
• Publikační typ
• časopisecké články MeSH

BACKGROUND: The term arterial stiffness (ArSt) describes structural changes in arterial wall related to the loss of elasticity and is known as an independent predictor of cardiovascular diseases (CVD). The evidence relating to ArSt and triglycerides (TG) shows contradictory results. This paper means to survey the association between high TG and ArSt, utilizing the cardio-ankle vascular index (CAVI). METHODS: Subjects aged between 25 and 64 years from a random population-based sample were evaluated between 2013 and 2016. Data from questionnaires, blood pressure, anthropometric measures, and blood samples were collected and analyzed. CAVI was measured using VaSera VS-1500 N devise. Subjects with a history of CVD or chronic renal disease were excluded. RESULTS: One thousand nine hundred thirty-four participants, 44.7% of males, were included. The median age was 48 (Interquartile Range [IQR] 19) years, TG levels were 1.05 (0.793) mmol/L, and CAVI 7.24 (1.43) points. Prevalence of high CAVI was 10.0% (14.5% in males and 6.4% in females; P <  0.001) and prevalence of hypertriglyceridemia was 20.2% (29.2% in males and 13% in females, P <  0.001). The correlation between TG and CAVI was 0.136 (P <  0.001). High CAVI values were more prevalent among participants with metabolic syndrome (MetS), high blood pressure, dysglycemia, abdominal obesity, high LDL-cholesterol (LDL-c), and high total cholesterol. Using binary regression analysis, high TG were associated with high CAVI, even after adjustment for other MetS components, age, gender, smoking status, LDL-c, and statin treatment (β = 0.474, OR = 1.607, 95% CI = 1.063-2.429, P = 0.024). CONCLUSION: TG levels were correlated with ArSt, measured as CAVI. High TG was associated with high CAVI independent of multiple cardiometabolic risk factors. Awareness of the risks and targeted treatment of hypertriglyceridemia could further benefit in reducing the prevalence of CVD and events.

• MeSH
• ateroskleróza krev   patofyziologie   MeSH
• dospělí MeSH
• hypertriglyceridemie krev   patofyziologie   MeSH
• lidé středního věku MeSH
• lidé MeSH
• metabolický syndrom krev   patofyziologie   MeSH
• regresní analýza MeSH
• rizikové faktory MeSH
• triglyceridy krev   MeSH
• tuhost cévní stěny fyziologie   MeSH
• Check Tag
• dospělí MeSH
• lidé středního věku MeSH
• lidé MeSH
• mužské pohlaví MeSH
• ženské pohlaví MeSH
• Publikační typ
• časopisecké články MeSH

Publikace se zabývá pandemií COVID-19 a prevencí šíření infekce. Určeno dětem.

• MeSH
• COVID-19 prevence a kontrola   MeSH
• hygiena MeSH
• karanténa MeSH
• koronavirové infekce prevence a kontrola   MeSH
• pandemie MeSH
• přenos infekční nemoci prevence a kontrola   MeSH
• primární prevence MeSH
• Publikační typ
• populární práce MeSH
• vtip a humor MeSH

• Konspekt
• Česká próza
• Literatura pro děti a mládež (beletrie)
• NLK Obory
• veřejné zdravotnictví
• infekční lékařství
• pneumologie a ftizeologie
• humanitní vědy a umění
• NLK Publikační typ
• brožury
• literatura pro děti a mládež

OBJECTIVE: While circulating nucleosome levels are high in obese mouse models, it is unknown where these nucleosomes originate from and whether they are a marker of cardio-metabolic health in humans. Here, we aimed to determine whether an association exists between circulating nucleosomes and the risk of developing obesity, metabolic syndrome (MetS) and/or a dysfunctional cardiovascular performance. METHODS: We randomly selected 120 participants of the Kardiovize Brno 2030 study across three BMI strata: BMI 18-25, 25-30, and > 30. We assessed the association between circulating nucleosome levels and the risk of obesity, MetS, and poor cardiovascular health. We then cultured human neutrophils, adipocytes, and hepatoma cells to study nucleosome origins in a fat-rich environment. RESULTS: Circulating nucleosome levels positively correlated with BMI (R = 0.602, p < 0.05), fatty liver index (R = 0.622, p < 0.05), left ventricular mass (R = 0.457, p < 0.05), and associated with MetS (p < 0.001) and poor cardiovascular health (p < 0.001). Incubating neutrophils with 1-10 μM free fatty acids triggered nucleosome production without concomitant cell death. Nucleosomes were not produced during pre-adipocyte differentiation or upon incubation of hepatic cells with palmitic acid. CONCLUSIONS: Neutrophils are a bona fide source of circulating nucleosomes in an obesogenic environment and in overweight/obese patients. High nucleosome levels are associated with MetS and cardiovascular performance, and might represent novel candidate biomarkers for cardio-metabolic health.

• MeSH
• buňky Hep G2 MeSH
• dospělí MeSH
• index tělesné hmotnosti MeSH
• kardiovaskulární nemoci etiologie   MeSH
• kultivované buňky MeSH
• lidé středního věku MeSH
• lidé MeSH
• metabolický syndrom krev   komplikace   MeSH
• nadváha krev   komplikace   metabolismus   MeSH
• neutrofily cytologie   metabolismus   MeSH
• nukleozomy metabolismus   MeSH
• obezita krev   komplikace   metabolismus   MeSH
• senioři MeSH
• tukové buňky cytologie   metabolismus   MeSH
• Check Tag
• dospělí MeSH
• lidé středního věku MeSH
• lidé MeSH
• mužské pohlaví MeSH
• senioři MeSH
• ženské pohlaví MeSH
• Publikační typ
• časopisecké články MeSH
• práce podpořená grantem MeSH

OBJECTIVE: Atherosclerosis is a major contributor to cardiovascular disease, with a higher burden on men than women during the occupational age. Intake of individual dietary antioxidants is inversely associated with risk of atherosclerosis development. We aimed to understand the relationship between dietary composite antioxidant intake and the carotid intima media thickness (cIMT), which is a proxy of atherosclerosis progression. APPROACH AND RESULTS: We performed a cross-sectional analysis that included 894 members of the Kardiovize cohort, a random urban sample population. Nutrient intakes were derived by 24-h recall. We constructed a composite dietary antioxidant index (CDAI), based on zinc, selenium, vitamin A, vitamin C, vitamin E and carotenoids. We considered the CDAI as the exposure variable and primary outcomes were the following cardio-metabolic parameters: body mass index (BMI), waist-to-hip ratio (WHR), body fat mass (BFM), systolic and diastolic blood pressure, triglycerides, HDL and LDL cholesterol, and cIMT. Associations and interactions between variables were evaluated using linear regression analyses. In women, a 1 mg increase in dietary intake of zinc or vitamin E decreased the cIMT by 3.36 and 1.48 µm, respectively, after adjusting for covariates. Similarly, the cIMT decreased by 4.72 µm for each one-unit increase in CDAI (p = 0.018). Beyond CDAI, age (β = 3.61; SE=0.89; p = 0.001), systolic blood pressure (β = 1.30; SE=0.59; p = 0.029) and triglycerides (β = 22.94; SE=10.09; p = 0.024) were significant predictors of cIMT in women. By contrast, we found no association between CDAI and cIMT in men. CONCLUSIONS: CDAI negatively associates with cIMT in women. These findings indicate that combined intake of nutrients with anti-oxidant properties might prevent the initiation and progression of arterial lesions in a sex-specific manner.

• MeSH
• antioxidancia aplikace a dávkování   MeSH
• ateroskleróza krev   diagnóza   dietoterapie   patofyziologie   MeSH
• dospělí MeSH
• HDL-cholesterol krev   MeSH
• index tělesné hmotnosti MeSH
• intimomediální šíře tepenné stěny * MeSH
• karotenoidy aplikace a dávkování   MeSH
• kyselina askorbová aplikace a dávkování   MeSH
• LDL-cholesterol krev   MeSH
• lidé středního věku MeSH
• lidé MeSH
• poměr pasu a boků MeSH
• potravní doplňky * MeSH
• progrese nemoci MeSH
• průřezové studie MeSH
• selen aplikace a dávkování   MeSH
• sexuální faktory MeSH
• triglyceridy krev   MeSH
• tuková tkáň účinky léků   MeSH
• vitamin A aplikace a dávkování   MeSH
• vitamin E aplikace a dávkování   MeSH
• zinek aplikace a dávkování   MeSH
• Check Tag
• dospělí MeSH
• lidé středního věku MeSH
• lidé MeSH
• mužské pohlaví MeSH
• ženské pohlaví MeSH
• Publikační typ
• časopisecké články MeSH
• práce podpořená grantem MeSH

Little is still known about the effect of dietary patterns on left ventricular hypertrophy (LVH). Here, we derived dietary patterns by principal component analysis (PCA) and evaluated their association with LV structure, function, and remodelling. Our cross-sectional study included 438 members (aged 25-65 years; 59.1% women) of the Kardiovize Brno 2030 with no history of cardiovascular disease. Two dietary patterns were derived using PCA, namely prudent and western. Primary outcomes were echocardiographic parameters and LV geometric patterns, such as concentric LV remodelling (cLVR), concentric LVH (cLVH), and eccentric LVH (eLVH). Interestingly, participants with high adherence to the prudent dietary pattern had decreased odds of cLVH after adjustment for socio-demographic, clinical and behavioral covariates (OR = 0.24, 95% CI = 0.08-0.88; p = 0.031). By contrast, several echocardiographic parameters increased with increasing adherence to the western dietary pattern, which resulted in higher odds of cLVH among participants with high adherence (OR = 5.38, 95% CI = 1.17-23.58; p = 0.035). Although our findings may have an immediate relevance for public-health strategies, further large-size prospective studies should be encouraged to better understand the observed association and their causality.

• MeSH
• dospělí MeSH
• elektrokardiografie MeSH
• kardiomegalie patologie   patofyziologie   MeSH
• lidé středního věku MeSH
• lidé MeSH
• logistické modely MeSH
• remodelace komor * MeSH
• senioři MeSH
• srdeční komory diagnostické zobrazování   patologie   patofyziologie   MeSH
• stravovací zvyklosti * MeSH
• Check Tag
• dospělí MeSH
• lidé středního věku MeSH
• lidé MeSH
• mužské pohlaví MeSH
• senioři MeSH
• ženské pohlaví MeSH
• Publikační typ
• časopisecké články MeSH
• práce podpořená grantem MeSH

• Publikační typ
• abstrakt z konference MeSH

Obesity and hypertension independently promote pathological left ventricular remodelling (LVR) and left ventricular hypertrophy (LVH), but to what extent they do so when they do not coexist is unclear. We used data from the Cardiovision Brno 2030 study to assess-for the first time in a region where no investigations have been previously carried out-the independent association of obesity and hypertension with LV geometry, and to evaluate the effects of hypertension in normal weight patients and the effects of obesity in normotensive patients. Overall, 433 individuals, aged 25⁻65 years, with no history of cardiovascular disease and/or antihypertensive treatment, were stratified into four groups according to BMI and hypertension: normal weight non-hypertensive (NWNH), normal weight hypertensive (NWH), overweight/obese non-hypertensive (ONH) and overweight/obese hypertensive (OH). LVR was classified as normal, concentric LVR (cLVR), concentric LVH (cLVH) or eccentric LVH (eLVH). Linear regression analysis demonstrated that body mass index (BMI) and systolic blood pressure (SBP) are the main predictors of LV mass and that they interact: SBP had a stronger effect in overweight/obese (β = 0.195; p = 0.033) compared to normal weight patients (β = 0.134; p = 0.048). Hypertension increased the odds of cLVR (OR = 1.78; 95%CI = 1.04⁻3.06; p = 0.037) and cLVH (OR = 8.20; 95% CI = 2.35⁻28.66; p = 0.001), independent of age, sex and BMI. Stratified analyses showed that NWH had a greater odd of cLVH (OR = 7.96; 95%CI = 1.70⁻37.08; p = 0.008) and cLVR (OR = 1.62; 95%CI = 1.02⁻3.34; p = 0.047) than NWNH. In the absence of hypertension, obesity was not associated with LVM and abnormal LV geometry, suggesting that it is not per se a determinant of LVR. Thus, antihypertensive therapy still remains the first-line approach against LVH in hypertensive patients, though weight loss interventions might be helpful in those who are obese.

• Publikační typ
• časopisecké články MeSH