- MeSH
- centrální žilní katétry MeSH
- intravenózní infuze metody přístrojové vybavení škodlivé účinky MeSH
- katetrizace centrálních vén metody ošetřování škodlivé účinky MeSH
- léčivé přípravky aplikace a dávkování MeSH
- lidé MeSH
- metabolické nemoci patofyziologie MeSH
- nutriční podpora metody MeSH
- parenterální infuze * metody přístrojové vybavení škodlivé účinky MeSH
- parenterální výživa úplná metody MeSH
- parenterální výživa * metody přístrojové vybavení škodlivé účinky MeSH
- roztoky pro parenterální výživu aplikace a dávkování metabolismus škodlivé účinky MeSH
- Check Tag
- lidé MeSH
In a recent consensus report in Clinical Nutrition the undernourished category of malnutrition was proposed to be defined and diagnosed on the basis of a low BMI or unintentional weight loss combined with low BMI or FFMI with certain cut off points. The definition was endorsed by ESPEN despite recent endorsement of a very different definition. The approach aims to assess whether nutritional intake is sufficient but is imprecise because a low BMI does not always indicate malnutrition and individuals with increasing BMI's may have decreasing FFM's. The pathophysiology of individuals, considered to be malnourished in rich countries and in areas with endemic malnutrition, results predominantly from deficient nutrition combined with infection/inflammation. Both elements jointly determine body composition and function and consequently outcome of disease, trauma or treatment. When following the consensus statement only an imprecise estimate is acquired of nutritional intake without knowing the impact of inflammation. Most importantly, functional abilities are not assessed. Consequently it will remain uncertain how well the individual can overcome stressful events, what the causes are of dysfunction, how to set priorities for treatment and how to predict the effect of nutritional support. We therefore advise to consider the pathophysiology of malnourished individuals leading to inclusion of the following elements in the definition of malnutrition: a disordered nutritional state resulting from a combination of inflammation and a negative nutrient balance, leading to changes in body composition, function and outcome. A precise diagnosis of malnutrition should be based on assessment of these elements.
- MeSH
- hmotnostní úbytek MeSH
- hodnocení stavu výživy MeSH
- index tělesné hmotnosti MeSH
- lidé MeSH
- nutriční podpora MeSH
- nutriční stav MeSH
- podvýživa diagnóza terapie MeSH
- senioři MeSH
- složení těla MeSH
- zánět diagnóza terapie MeSH
- Check Tag
- lidé MeSH
- mužské pohlaví MeSH
- senioři MeSH
- ženské pohlaví MeSH
- Publikační typ
- časopisecké články MeSH
Oxidative stress is thought to play an important role in the pathogenesis of disorders associated with atherosclerosis. Alpha-tocopherol is considered to be an effective lipophilic antioxidant, which protects lipid membranes against peroxidation and thus prevents cell damage by reaction with free radicals. However, measurement of alpha-tocopherol concentration in serum does not reflect the content of α-tocopherol in membranes whereas erythrocyte alpha-tocopherol may be good indicator of antioxidative status. Therefore a simple isocratic reversed phase HPLC method has been developed and validated for the determination of alpha-tocopherol in human erythrocytes in a clinical setting. The content of alpha-tocopherol in human erythrocyte membrane and lipoperoxidation were studied in patients with severe hypercholesterolemia treated by lipoprotein apheresis. The group of hypercholesterolemic patients (n = 14) treated by lipoprotein apheresis was compared to healthy adult normolipidemic controls. After lipoprotein apheresis, the content of in membrane alpha-tocopherol did not change significantly despite decreased tocopherol in serum and lipoprotein fractions. We observed significantly decreased lipoperoxidation as revealed by serum TBARS, representing end products of lipid peroxidation, which increased from third day afterwards and remained significantly higher in comparison to controls until the next LDL-apheresis. We conclude that aggressive lipid lowering procedure with lipoprotein apheresis was associated with favorable transient decrease of lipoperoxidation. Simultaneously the cell membrane bound antioxidative defense mechanisms as reflected by the content of alpha-tocopherol in human erythrocyte membrane where not depressed in spite of its decreased plasma lipid carrier. Another variables involved remain to be investigated.
- MeSH
- alfa-tokoferol krev MeSH
- antioxidancia metabolismus MeSH
- biologické markery krev MeSH
- časové faktory MeSH
- chromatografie s reverzní fází MeSH
- dospělí MeSH
- erytrocytární membrána metabolismus MeSH
- hyperlipoproteinemie typ II krev diagnóza terapie MeSH
- látky reagující s kyselinou thiobarbiturovou metabolismus MeSH
- lidé středního věku MeSH
- lidé MeSH
- lipoproteiny krev MeSH
- oxidační stres * MeSH
- peroxidace lipidů MeSH
- senioři MeSH
- separace krevních složek metody MeSH
- studie případů a kontrol MeSH
- výsledek terapie MeSH
- vysokoúčinná kapalinová chromatografie MeSH
- Check Tag
- dospělí MeSH
- lidé středního věku MeSH
- lidé MeSH
- mužské pohlaví MeSH
- senioři MeSH
- ženské pohlaví MeSH
- Publikační typ
- časopisecké články MeSH
BACKGROUND: Omentin-1 is an anti-inflammatory adipokine produced preferentially by visceral adipose tissue. Plasma levels of omentin-1 are decreased in obesity and other insulin-resistant states. Insulin resistance contributes to the changes of cholesterol synthesis and absorption as well. The aim of this study was to characterise omentin-1 plasma levels in obese patients with diabetes mellitus type 1 during weight reduction, and to elucidate the relationship between cholesterol metabolism and omentin-1. METHODS: Plasma levels of omentin-1 were measured in obese type 1 diabetics (n=14, body mass index >30 kg m(-2), age 29-62 years) by enzyme-linked immunosorbent assay (BioVendor). Gas chromatography with flame ionisation detector (Fisons Plc.,) was used to measure squalene and non-cholesterol sterols-markers of cholesterol synthesis and absorption (phase I). Measurements were repeated after 1 month (phase II; 1 week of fasting in the hospital setting and 3 weeks on a diet containing 150 g saccharides per day) and after 1 year (phase III) on a diet with 225 g saccharides per day. RESULTS: Omentin-1 plasma levels were stable during phases I and II, but significantly increased (P<0.001) during phase III. Omentin-1 plasma dynamics were significantly associated with plasma levels of high-density lipoprotein (P=0.005) and triacylglycerols (P=0.01), as well as with lathosterol (P=0.03). CONCLUSION: Omentin-1 plasma levels significantly increased during the weight reduction programme. Omentin-1 plasma dynamics suggest a close relationship with cholesterol metabolism.
- Publikační typ
- časopisecké články MeSH
- Publikační typ
- abstrakt z konference MeSH
PURPOSE: To evaluate the experience with rheohaemapheresis (RH) in the treatment of age-related macular degeneration (AMD). METHODS: Thirty-eight patients were each treated with 8 procedures of RH (14 males, 24 females). The control group consisted of 34 random patients (30 females, 4 males) with the dry form of AMD but not treated by RH. Our modification of the cascade method (named rheohaemapheresis) was used for plasma separation. After plasma separation (blood cell separator, Cobe Spectra, Denver, CO, USA), the separated plasma was pumped through a rheofilter (Evaflux 4A, Kuraray, Osaka, Japan) to remove lipoproteins and other high-molecular-weight rheologic factors. RESULTS: In treated patients, best-corrected visual acuity (BCVA) increased significantly from 0.61 (0.06-1.00) to 0.68 (0.35-1.00) after 2.5 years (p = 0.035). We found no significant changes or differences in scotopic activity, whereas cone response and paramacular activity in the more peripheral region between 14° and 22° of eccentricity were significantly higher in treated patients after 2.5 years. CONCLUSION: RH therapy favourably influenced BCVA. During 2.5 years after the therapy, no progression of dry to wet AMD was observed in our patients. RH reduced the area of drusenoid retinal pigment epithelium detachment (which increased during the natural course of dry form AMD). RH influenced rheological markers and probably improved metabolism in the affected retinal areas which lead to the aforementioned positive results.
- MeSH
- biologické markery krev MeSH
- časové faktory MeSH
- elektroretinografie MeSH
- lidé MeSH
- lipoproteiny krev MeSH
- makulární degenerace krev diagnóza patofyziologie terapie MeSH
- noční vidění MeSH
- obnova funkce MeSH
- optická koherentní tomografie MeSH
- prediktivní hodnota testů MeSH
- progrese nemoci MeSH
- reologie MeSH
- senioři nad 80 let MeSH
- senioři MeSH
- separace krevních složek metody MeSH
- viskozita krve MeSH
- výsledek terapie MeSH
- zraková ostrost MeSH
- Check Tag
- lidé MeSH
- mužské pohlaví MeSH
- senioři nad 80 let MeSH
- senioři MeSH
- ženské pohlaví MeSH
- Publikační typ
- časopisecké články MeSH
- práce podpořená grantem MeSH
- randomizované kontrolované studie MeSH
- Geografické názvy
- Česká republika MeSH
