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632. Catalytic nitric oxide synthase activity in the white and gray matter regions of the spinal cord of rabbits
- Creator:
- Naděžda Lukáčová and Jaroslav Pavel
- Format:
- print, bez média, and svazek
- Type:
- article, články, model:article, and TEXT
- Subject:
- Fyziologie člověka a srovnávací fyziologie, mícha, králíci, spinal cord, rabbits, cNOS activity, spinal cord segments, white and gray matter regions, 14, and 612
- Language:
- English
- Description:
- The latest research reveals that nitric oxide as a gas messenger may diffuse into the surrounding extracellular fluid and act locally upon neighboring target cells. However, several observations raise the possibility that nitric oxide may also be released at a greater distance from the neuronal cell body. The catalytic nitric oxide synthase (cNOS) activity was therefore studied in the cervicothoracic and lumbosacral segments of the spinal cord of rabbits, including the white matter of dorsal columns (DC), lateral columns (LC) and ventral columns (VC), as well as the gray matter of dorsal horns (DH), intermediate zone (IZ) and ventral horns (VH). Lower cNOS activity was found in the white matter of both cervicothoracic (47 %) and lumbosacral (30 %) regions, whereas that detected in the gray matter of the lumbosacral part of the spinal cord was considerably higher (70 %). Enzyme activity varied from 43.4 to 77.2 dpm/µg protein in the cervicothoracic segments of the gray matter in the descending order: DH>VH>IZ. Similar cNOS activity was found in the white matter of the cervicothoracic segments (42.1-62.8 dpm/µg protein). When the activity of cNOS was compared in the lumbosacral segments, the highest enzyme activity was found in DH of the gray matter (198.7 dpm/µg protein) and the lowest cNOS in DC (45.8 dpm/µg protein) of the white matter. It was concluded that the white matter of the spinal cord contains similar cNOS activity in comparison to the gray matter., N. Lukáčová, J. Pavel., and Obsahuje bibliografii
- Rights:
- http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public
633. Catenotaenia henttoneni sp. n. (Cestoda: Catenotaeniidae), a parasite of voles Clethrionomys glareolus and C. rutilus (Rodentia)
- Creator:
- Haukisalmi, V. and Tenora, F.
- Format:
- Type:
- model:internalpart and TEXT
- Subject:
- Catenotaenia henttoneni, Cesloda, Clethrionomys, and voles
- Language:
- English
- Description:
- A description of a new tapeworm species, Catenotaenia henttoneni, parasitizing the voles Clethrionomys glareolus and C. rutilus (Arvicolidac) in Finnish Lapland, is given. Wc show that all Catenotaenia from arvicolid rodents in Europe, usually described as C. cricetorum Kirschenblat, 1949, evidently represent the species C. henttoneni.
- Rights:
- http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public
634. Catheter-based management of aortic valve regurgitation in experimental cardiology
- Creator:
- Jan Šochman and Jan H. Peregrin
- Format:
- print, bez média, and svazek
- Type:
- article, články, model:article, and TEXT
- Subject:
- Fyziologie člověka a srovnávací fyziologie, fyziologie, kardiologie, experimentální medicína, katetrizace, physiology, cardiology, experimental medicine, catheterization, aortic valve regurgitation, 14, and 612
- Language:
- English
- Description:
- Non-surgical management of aortic valve disease has been given considerable attention. Several recent publications have already reported its use in clinical practice. The main issue is to get an understanding of the pathophysiological processes and, most importantly, extensive experimental activity. In addition to testing various animal models, technical and material aspects are also being intensively investigated. It is not clear yet whether the durability and applicability of this promising development will be comparable with the standard of current cardiac surgery. Nonetheless, even the use of some models as a temporary approach helping to improve the circulatory status, not allowing safe surgery, is certainly justified. At any rate, a new stage of research and clinical application has been set off. However, experimental background continues to be simply indispensable. The paper is a short review of the issue., J. Šochman, J. H. Peregrin., and Obsahuje bibliografii a bibliografické odkazy
- Rights:
- http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public
635. Cauda equina syndrome and nitric oxide synthase immunoreactivity in the spinal cord of the dog
- Creator:
- Jozef Maršala, Kafka, J., Naděžda Lukáčová, Dáša Čížková, Martin Maršala, and Katsube, N.
- Format:
- print, bez média, and svazek
- Type:
- article, články, model:article, and TEXT
- Subject:
- Fyziologie člověka a srovnávací fyziologie, mícha, psi, spinal cord, dogs, cauda equina syndrome, nitric oxide synthase, 14, and 612
- Language:
- English
- Description:
- The development of the cauda equina syndrome in the dog and the involvement of spinal nitric oxide synthase immunoreactivity (NOS-IR) and catalytic nitric oxide synthase (cNOS) activity were studied in a pain model caused by multiple cauda equina constrictions. Increased NOS-IR was found two days post-constriction in neurons of the deep dorsal horn and in large, mostly bipolar neurons located in the internal basal nucleus of Cajal seen along the medial border of the dorsal horn. Concomitantly, NOS-IR was detected in small neurons close to the medioventral border of the ventral horn. High NOS-IR appeared in a dense sacral vascular body close to the Lissauer tract in S1-S3 segments. Somatic and fiber-like NOS-IR appeared at five days post-constriction in the Lissauer tract and in the lateral and medial collateral pathways arising from the Lissauer tract. Both pathways were accompanied by a dense punctate NOS immunopositive staining. Simultaneously, the internal basal nucleus of Cajal and neuropil of this nucleus exhibited high NOS-IR. A significant decrease in the number of small NOS immunoreactive somata was noted in laminae I-II of L6-S2 segments at five days post-constriction while, at the same time, the number of NOS immunoreactive neurons located in laminae VIII and IX was significantly increased. Moreover, high immunopositivity in the sacral vascular body persisted along with a highly expressed NOS-IR staining of vessels supplying the dorsal sacral gray commissure and dorsal horn in S1-S3 segments. cNOS activity, based on a radioassay of compartmentalized gray and white matter regions of lower lumbar segments and non-compartmentalized gray and white matter of S1-S3 segments, proved to be highly variable for both post-constriction periods., J. Maršala, J. Kafka, N. Lukáčová, D. Čížková, M. Maršala, N. Katsube., and Obsahuje bibliografii
- Rights:
- http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public
636. CD27+ peripheral blood b-cells are a useful biodosimetric marker in vitro
- Creator:
- Zuzana Řeháková, Šinkora, J., Marcela Vlková, Doris Vokurková, Jan Österreicher, Jaroslava Vávrová, and Daniel Driák
- Format:
- print, bez média, and svazek
- Type:
- article, články, model:article, and TEXT
- Subject:
- Fyziologie člověka a srovnávací fyziologie, klinická imunologie, radiobiologie, dozi, clinical immunology, radiobiology, B-cells, CD27+, biodosimetric marker, γ-irradiation, 14, and 612
- Language:
- English
- Description:
- The CD8+ natural killer (NK) subpopulation has recently been identified as a fast and reliable biodosimetric indicator within human peripheral blood mononuclear cells (PBMC) in vitro. In irradiated and subsequently cultivated PBMC, a decrease of the relative number of intact CD3-CD8+ lymphocytes 16 and 48 h after treatment has allowed for estimating the received dose in the range of 0 - 10 Gy and lethal/sublethal dose discrimination, respectively. Here we show that suitable biodosimeters can also be found in the peripheral blood B-cell compartment. Multiparameter flow cytometric analysis of irradiated and subsequently cultivated human PBMC revealed that both the CD27+ and CD21- B-cell subpopulations can be used as biodosimeters and the CD19+CD27+ lymphocytes have proved useful for retrospective determination of the received dose in the range of 0 - 6 Gy. In addition, several CD19+ lymphocyte subsets characterized by co-expression of CD21, CD27 and CD38 have been shown to bear biodosimetric potential, too. However, when important parameters like the original size within the CD19+ compartment, its radiation-induced changes and data variation had been taken into account, the CD27+ subpopulation proved superior to the other B-cell subpopulations and subsets. It appears that, in the dose range of 0 - 6 Gy, the relative decrease of CD27+ B lymphocytes provides more sensitive and reliable data than that of CD8+ NK-cells due mainly to lower data variation. In contrast to CD27+ B-cells, the proportions of CD27+ subpopulations of T-cells were not affected by irradiation. We have also proposed a simple experimental protocol based on full blood cultivation and three-color CD27/CD3/CD19 immuno-phenotyping as a time-saving and inexpensive approach for practical biodosimetric evaluations on simple, three-to-four color flow cytometers., Z. Řeháková, J. Šinkora, M. Vlková, D. Vokurková, J. Österreicher, J. Vávrová, D. Driák., and Obsahuje bibliografii a bibliografické odkazy
- Rights:
- http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public
637. CD36 regulates fatty acid composition and sensitivity to insulin in 3T3-L1 adipocytes
- Creator:
- Kontrová, K., Jarmila Zídková, Bartoš, B., Skop, V., Jiří Sajdok, Ludmila Kazdová, Mikulík, K., Petr Mlejnek, Václav Zídek, and Michal Pravenec
- Format:
- print, bez média, and svazek
- Type:
- article, články, model:article, and TEXT
- Subject:
- Fyziologie člověka a srovnávací fyziologie, fyziologie, mastné kyseliny, inzulin, physiology, fatty acids, insulin, CD36, 3T3-L1 adipocyty, interference RNA, 3T3-L1 adipocytes, RNA interference, 14, and 612
- Language:
- English
- Description:
- In the current study, we tested a hypothesis that CD36 fatty acid (FA) transporter might affect insulin sensitivity by indirect effects on FA composition of adipose tissue. We examined the effects of CD36 downregulation by RNA interference in 3T3-L1 adipocytes on FA transport and composition and on sensitivity to insulin action. Transfected 3T3-L1 adipocytes, without detectable CD36 protein, showed reduced neutral lipid levels and significant differences in FA composition when levels of essential FA and their metabolites were lower or could not be detected including gamma linolenic (C18:3 n6), eicosadienic (C20:2 n6), dihomo-gamma linolenic (C20:3 n6), eicosapentaenoic (EPA) (C20:5 n3), docosapentaenoic (DPA) (C22:5 n3), and docosahexaenoic (DHA) (C22:6 n3) FA. Transfected 3T3-L1 adipocytes exhibited a significantly higher n6/n3 FA ratio, reduced Δ5-desaturase and higher Δ9-desaturase activities. These lipid profiles were associated with a significantly reduced insulin-stimulated glucose uptake (4.02±0.1 vs. 8.42±0.26 pmol.10-3 cells, P=0.001). These findings provide evidence that CD36 regulates FA composition thereby affecting sensitivity to insulin action in 3T3-L1 adipocytes., K. Kontrová, J. Zídková, B. Bartoš, V. Skop, J. Sajdok, L. Kazdová, K. Mikulík, P. Mlejnek, V. Zídek, M. Pravenec., and Obsahuje bibliografii a bibliografické odkazy
- Rights:
- http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public
638. Čechy: nástin historický
- Creator:
- František Lützow, Josef Julius David, Ernest Denis, and Tomáš Garrigue Masaryk
- Publisher:
- Nákladem B. Melichara
- Format:
- print, text, regular print, and xxi, 438 s. ; 18 cm
- Type:
- model:monograph and TEXT
- Subject:
- Dějiny Česka a Slovenska, dějiny, Česko, 94(437.3), (048.8), 8, and 94(437)
- Language:
- Czech and English
- Description:
- anglicky napsal František hrabě z Lützowů ; z originálu přeložil Josef Jul. David ; s předmluvou Arnošta Denise a úvodem T.G. Masaryka, Přeloženo z angličtiny, and Obsahuje bibliografické odkazy a rejstřík
- Rights:
- http://creativecommons.org/publicdomain/mark/1.0/ and policy:public
639. Celiakie – současný pohled na etiopatogenezi, diagnostiku a terapii
- Creator:
- Falt, Přemysl, Fojtík, Petr, and Šmajstrla, Vít
- Format:
- print, text, and regular print
- Type:
- model:article, article, Text, přehledy, and TEXT
- Subject:
- celiakie--diagnóza--etiologie--patologie--terapie, bezlepková dieta, střevní sliznice--imunologie, Triticum, alergie na pšenici--imunologie, příznaky a symptomy ústrojí trávicího, autoimunitní nemoci, imunologické testy--metody, diferenciální diagnóza, and lidé
- Language:
- Czech and English
- Description:
- Celiakie je časté celoživotní autoimunitní onemocnění spuštěné konzumací lepku u geneticky predisponovaných jedinců. Chronické zánětlivé změny vedou k poškození sliznice tenkého střeva s následnou vilózní atrofií provázenou chronickou maldigescí a malabsorpcí. Neléčená celiakie je spojena s širokým spektrem střevních a mimostřevních obtíží a komplikací, z nichž nejzávažnější je lymfom tenkého střeva. Zlatým standardem diagnostiky je stanovení specifických autoprotilátek a průkaz vilózní atrofie v biopsii z duodenální sliznice. Kauzální a ve většině případů efektivní léčbou je celoživotní striktní bezlepková dieta, která vede k restituci sliznice tenkého střeva a snížení rizika závažných komplikací., Coeliac disease is a common lifelong autoimmune disorder triggered by gluten consumption in genetically predisposed patients. Chronic inflammatory response damages the mucosa of the small intestine resulting in villous atrophy with chronic maldigestion and malabsorption. Untreated coeliac disease may present with a variety of intestinal and extraintestinal symptoms and complications, the most serious of which is a small intestine lymphoma. The diagnosis is usually established by specific serology markers and villous atrophy in duodenal biopsy. The causal and, in most cases, effective treatment modality is a strict and life‑long gluten‑free diet that leads to regeneration of the intestinal mucosa and reduces the risk of serious complications., and Falt P., Fojtík P., Šmajstrla V.
- Rights:
- http://creativecommons.org/publicdomain/mark/1.0/ and policy:public
640. Celiakie u pacientů s diabetes mellitus 1. typu
- Creator:
- Haladová, Iva, Čechurová, Daniela, Lacigová, Silvie, Gruberová, Jitka, Rušavý, Zdeněk, and Balihar, Karel
- Format:
- print, text, and regular print
- Type:
- model:article, article, Text, práce podpořená grantem, and TEXT
- Subject:
- dospělí, lidé, lidé středního věku, mužské pohlaví, ženské pohlaví, retrospektivní studie, celiakie--diagnóza--dietoterapie--epidemiologie, diabetes mellitus 1. typu--imunologie--komplikace, bezlepková dieta, prevalence, index tělesné hmotnosti, biopsie, imunoglobulin A--krev, autoprotilátky--imunologie--krev, hemoglobin A glykosylovaný--analýza, transglutaminasy--krev, and enterobiopsie
- Language:
- Czech and English
- Description:
- Cíl: Zjistit prevalenci celiakie u dospělých pacientů s diabetes mellitus 1. typu (DM1T). Vliv nově zahájené léčby celiakie na kompenzaci diabetu a body mass index (BMI) pacientů. Chování protilátek proti tkáňové transglutamináze (atTG) po roce od zahájení léčby. Metodika: Retrospektivní hodnocení cíleného screeningu na celiakii v období 1. 1. 2007–1. 7. 2011 u 465 dospělých pacientů s DM1T v Diabetologickém centru I. interní kliniky LF UK a FN Plzeň (80 % všech pacientů s DM1T). Při pozitivitě atTG-A (popř. atTG-G) byla indikována enterobiopsie. U pacientů s nově indikovanou bezlepkovou dietou byl porovnán HbA1c a BMI v průběhu roku před stanovením diagnózy celiakie vs období 1 roku po 6 měsících od zahájení léčby (3–4 kontroly). Po roce od zahájení léčby byla kontrolována hladina atTG. Ke statistice byl použit párový t-test. Výsledky: Prevalence všech forem celiakie v souboru byla 10,5 %. 1,1 % pacientů (5 ze 465) mělo diagnostikovanou celiakii v dětství. Nově byla pozitivita atTG zachycena u 9,5 % (44 ze 465) pacientů – indikováni k enterobiopsii. Z toho 3 pacienti s atTG > 300 kIU/l odmítli enterobiopsii, u těchto pacientů je celiakie vysoce pravděpodobná a pro malkomplianci nešlo hodnotit vliv bezlepkové diety na BMI a HbA1c. 22 pacientů mělo potenciální formu celiakie (negativní histologie). Pozitivní nález z enterobiopsie byl zjištěn u 19 pacientů (4,1 %). Z podsouboru 22 pacientů (nově indikována bezlepková dieta), bylo nutné vyřadit další 3 pacienty (vývoj HbA1c a BMI byl ovlivněn prvozáchytem DM1T). Charakteristika podsouboru: 9 žen a 7 mužů, průměrný věk 38 ? 12 let, trvání diabetu 21 ? 13 let, celiakie diagnostikována 20,7 ? 13 let od záchytu DM1T. Během sledovaného období nedošlo ke statisticky významné změně bazální hodnoty HbA1c 67 ? 11,4 vs 69 ? 13,9 mmol/mol po sledování a významně se zvýšil BMI z 25,4 ? 4,2 na 25,9 ? 4,3 (p < 0,01). Po roce přetrvávala pozitivita atTG u 47 % (9 z 19) pacientů. Závěr: V souboru dospělých pacientů s DM1T byla zjištěna celková prevalence celiakie 10,5 %. Po zahájení léčby nedošlo k významné změně HbA1c, došlo k významnému vzestupu BMI. Pozitivita atTG přetrvávala po roce u 47 % pacientů., Objective: To assess the prevalence of celiac disease in adult patients with type 1 diabetes mellitus (T1DM). Influence the new started treatment of celiac disease on glycemic control and body mass index (BMI) of the patients. Prevail the anti-transglutaminase antibody (atTG) positivity one year after commencement of the therapy. Methods: A retrospective assessment of celiac disease targeted screening in 465 adult T1DM patients at Diabetes Center, 1st Medical Department, University Hospital in Pilsen (80 % of all T1DM patients) from 1. 1. 2007 until 1. 7. 2011. Enterobiopsy was indicated in case of atTG-A (or atTG-G) positivity. In patients with newly started gluten-free diet, HbA1c and BMI within a year after diagnosis of celiac disease were compared to a year period six months after treatment commencement (3–4 visits), atTG was evaluated one year after treatment beginning. Paired T-test was used for statistical evaluation. Results: The prevalence of all forms of celiac disease in the studied group was 10.5 %. Celiac disease diagnosed in childhood was found in 1.1 % patients (5/465). Positivity of atTG was newly observed in 9.5 % (44/465) patients. Three patients with atTG > 300 kIU/l refused the enterobiopsy examination. Celiac disease is highly plausible. The influence of gluten-free diet on BMI and HbA1c could not be evaluated due to the lack of compliance. 22 patients had a potential form of celiac disease (negative histology). Positive enterobiopsy was found in 19 patients (4.1 %). Another 3 patients had to be excluded from the subgroup of 22 patients (newly indicated gluten-free diet) as the HbA1c values and BMI were affected by the primary diagnosis of T1DM. Subgroup characteristics: 9 women and 7 men, mean age 38 ? 12 years, diabetes duration 21 ? 13 years, celiac disease diagnosed 20.7 ? 13 years since first diagnosis of T1DM. No statistically significant change in HbA1c (67 ? 11.4 vs 69 ? 13.9 mmol/mol) was observed in the studied period, however and a significant change of BMI from 25.4 ? 4.2 to 25.9 ? 4.3 (p < 0.01) was found. The atTG positivity prevailed in 47 % (9/19) of patients after one year. Conclusion: A total prevalence of the celiac disease in the group of adult T1DM patients was 10.5 %. No significant change in HbA1c occurred following treatment, a significant change of BMI was observed. The atTG positivity prevailed in 47 % of patients after one year., and Iva Haladová, Daniela Čechurová, Silvie Lacigová, J. Gruberová, Zdeněk Rušavý, Karel Balihar
- Rights:
- http://creativecommons.org/publicdomain/mark/1.0/ and policy:public