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Physiology International
Authors:
P. Kovács
,
József Gábor Joó
,
V. Tamás
,
Z. Molnár
,
D. Burik-Hajas
,
J. Bódis
, and
L. Kornya

Abstract

Purpose

We aimed to assess the etiological role of apoptotic genes Bcl-2 and Bax in the background of major obstetric and gynaecological diseases.

Methods

Placental tissue samples were collected from 101 pregnancies with intrauterine growth restriction and 104 pregnancies with premature birth with 140 controll samples from term, eutrophic newborns. In addition, gene expression assessment of the genes Bax and Bcl-2 was performed in 101 uterine leiomyoma tissue samples at our disposal with 110 control cases. Gene expression levels were assessed by PCR method.

Results

The expression of the Bcl-2 gene was decreased in placental samples with intrauterine growth restriction. Significant overexpression of the proapoptotic Bax gene was detected in samples from premature infants. Antiapoptotic Bcl-2 gene expression was found to be significantly increased in fibroid tissues.

Conclusion

Apoptosis plays a crucial role in the development of the most common OB/GYN conditions. Decrease in the placental expression of the antiapoptotic gene Bcl-2 may upset the balance of programmed cell death.

Open access
Orvosi Hetilap
Authors:
Géza Tóth
,
Ferenc Győry
,
Miklós Bodor
,
Csaba Molnár
, and
V. Endre Nagy

Absztrakt:

A differenciált pajzsmirigydaganatok körébe tartozó papillaris és follicularis carcinomákat együttesen nem medullaris pajzsmirigyráknak nevezzük, melyek az összes pajzsmirigy-carcinoma 90%-át teszik ki. Ezen daganatok 5–10%-a családi halmozódást mutat, és csak elenyésző hányaduk, mintegy 3–5%-uk köthető monogénes öröklődést mutató tumorszindrómához. Az összes többi familiaris nem medullaris pajzsmirigy-carcinoma hátterében egyértelmű genetikai eltérés nem észlelhető. A családi halmozódást mutató nem medullaris pajzsmirigyrákok viselkedése, agresszivitása és kimenetele rosszabb a sporadikus formáénál. Tizenhét évvel ezelőtt, az akkor 45 éves nőnél derült fény pajzsmirigy szolid göbjének hátterében papillaris carcinomájára. Műtétet és radiojód-ablatiót követően levotiroxinkezelés mellett azóta tumormentes. Egy éve 41 éves leányánál multinodularis struma műtéte során tokinfiltrációval és nyaki nyirokcsomóáttétekkel járó papillaris carcinoma igazolódott. 39 éves másik leányánál szűrővizsgálatot követően derült fény multiplex pajzsmirigygöbjeire. A műtét során multiplex papillaris daganatot találtunk tokáttöréssel, érinvázióval, valamint nyaki nyirokcsomóáttétekkel. Totális thyreoidectomiára, valamint centrális nyaki blokkdissectióra került sor. Ezt követően radiojód-terápiát, majd levotiroxint kapott. Esetünkkel szeretnénk felhívni a figyelmet a familiaris nem medullaris pajzsmirigy-carcinomák jelenlétére, azok agresszívebb természetére és emiatt a családszűrés, valamint a kezelési stratégia megválasztásának fontosságára. Orv Hetil. 2020; 161(43): 1849–1854.

Open access
Orvosi Hetilap
Authors:
Katalin Leiszter
,
Orsolya Galamb
,
Ferenc Sipos
,
Kinga Tóth
,
Gábor Valcz
,
V. Árpád Patai
,
Jeannette Molnár
,
Béla Molnár
, and
Zsolt Tulassay

Az öregedés emésztőrendszeri hatásainak vizsgálata, molekuláris hátterének megismerése és bizonyos betegségek (mint például az idősek körében gyakrabban előforduló sporadikus vastagbélrák) kialakulásával való kapcsolatának feltérképezése új és ígéretes területe a molekuláris gasztroenterológiának. Ismert tény, hogy az emésztőrendszerben az öregedés során kialakuló molekuláris változások egy része (például a DNS-metiláció, a telomerrövidülés) a vastagbélrák bizonyos típusaiban is azonosítható. A sporadikus vastagbélrák epidemiológiai és molekuláris tulajdonságait ismerve továbbra is nyitott kérdés, hogy pontosan milyen molekuláris mechanizmusok, genetikai vagy génexpressziós szintű, illetve epigenetikai változások magyarázzák, hogy 45–50 éves kor felett a sporadikus vastagbélrákos megbetegedések száma ugrásszerűen megnő, és ezek vajon hogyan hozhatók összefüggésbe az öregedés mechanizmusával. Hosszú távon a megelőzés és a korszerű kezelés szempontjából is kiemelkedő jelentőségű lehet a megismert folyamatok célzott befolyásolása. Dolgozatunk az öregedés során a vastagbélben kialakuló mikroszkópos és molekuláris változásokat foglalja össze, és ezek lehetséges szerepét mutatja be az időskori sporadikus vastagbélrák kialakulásában.

Open access
Acta Phytopathologica et Entomologica Hungarica
Authors:
A. P. Glinushkin
,
O. O. Beloshapkina
,
A. A. Solovykh
,
V. S. Lukyantsev
,
A. A. Batmanova
,
G. V. Sudarenkov
, and
J. Molnár

The identification of pathogenic agents isolated from infected wheat seeds and plants, collected in the Southern Ural and characterized by an atypical manifestation of bacterial infection (yellow leaf tips), has been carried out by direct microbiological and molecular methods. In addition, an indirect identification by the hypersensitive reaction (HR) approach has been performed simultaneously with the pathogenicity assessment of isolates using an indicator plant Plectranthus australis R. Br. Isolated samples have been microbiologically identified as Xanthomonas sp. According to the results of the PCR identification with species-specific primers, isolated samples represent Xanthomonas translucens; the reliability of the obtained results is corroborated by the hypersensitive reaction approach used also to assess the pathogenicity of isolates. Winter wheat, especially cv. Pionerskaya 23, where both X. translucens and Pantoea agglomerans were found, suffered more severe symptoms than spring wheat that was only affected by strains of X. translucens. To improve the reliability of the primary diagnostics of a bacterial character of seed infection, the provoking of the pathogen development by temperature or pH stress is proposed.

Restricted access

The taxonomy of the genus Bulbocodium , in which two European species, a smaller eastern (B. versicolor) and a more robust western (B. vernum) are included, has been controversial since the description of the eastern species in 1821. Nuclear encoded ribosomal DNA ITS1 and the entire chloroplast DNA ITS were sequenced from several European populations, from France to the Ukraine, and the leaf width of mature living individuals was measured and analysed by ANOVA and Tukey-test. Although the studied DNA regions proved to be invariable, leaf width shows extreme variability. We found no correlation between the leaf size of the individuals and the geographical position of the populations, and in addition, the sequenced DNA regions showed total uniformity. Thus, our results do not support the division of the genus Bulbocodium into two taxa, at least in the sampled area. The formerly described size variants can be treated taxonomically at the forma level.

Restricted access
Acta Botanica Hungarica
Authors:
T. Nagy
,
K. Nótári
,
A. Takács
,
T. Malkócs
,
J. Tökölyi
, and
A. Molnár V.

The rare, fully mycoheterotrophic Ghost Orchid, Epipogium aphyllum is only visible during its short flowering and fruiting season, which lasts for a few weeks between May and October. Due to the apparent unpredictability of its flowering, decades may pass between subsequent observations at the same locality. The factors affecting timing of flowering in this enigmatic species remain largely unexplored. In Hungary, it is an extremely rare species: between 1924 and 2014 only 25 dated observations from 15 locations are known. Hungary is located on the edge of the species’ distribution area where higher precipitation may occur only in higher regions of mountains. Hence, the spatial and temporal pattern of precipitation might limit the emergence of generative shoots. In this paper we compared rainfall patterns in relation with the Ghost Orchids’ observations to multiannual precipitation averages. The year of flowering and the month preceding flowering (but not the year before flowering and the month of flowering) were characterised by significantly more rainfall than the multi-annual average precipitation. These results suggest that the appearance of the species in Hungary is precipitation-dependent.

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Journal of Radioanalytical and Nuclear Chemistry
Authors:
Em. Cincu
,
I. Manea
,
V. Manu
,
D. Barbos
,
O. Sima
,
I. Gustavsson
,
P. Vermaercke
,
N. Vajda
,
Zs. Molnar
, and
H. Polkowska-Motrenko

Abstract  

Samples of high alloy Stainless Steel SS 1 were analyzed by instrumental neutron activation analysis (INAA) at 5 research institutes in 4 European countries within the frame of an Inter-Laboratory Comparison (ILC) exercise aiming at checking if the results were independent of the standardization methods, and if INAA was accurate enough to contribute to certification. The mean element concentration values yielded by INAA were also compared with mean values obtained by atomic emission spectroscopy techniques at other laboratories that took part in the International Proficiency Testing organized by KIMAB Institute of Sweden, producer of the SS 1. The performances of the nuclear and atomic techniques were compared in terms of the z-score values calculated for 11 element concentrations evaluated by the two analytical ways. Finally, consideration is given to the ways in which highest accuracy and precision can be ensured for certifying stainless steels as CRMs.

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Acta Physiologica Hungarica
Authors:
E. Nemes-Nagy
,
T. Szőcs-Molnár
,
I. Dunca
,
V. Balogh-Sămărghiţan
,
Şt. Hobai
,
R. Morar
,
D.L. Pusta
, and
E.C. Crăciun

Restricted access
Physiology International
Authors:
G. Molnár
,
V. A. Gyarmathy
,
J. Takács
,
S. Sándor
,
B. Kiss
,
J. Fazakas
, and
P. L. Kanizsai

Abstract

Objectives

Conditions that have similar initial presentations as sepsis may make early recognition of sepsis in an emergency room (ER) difficult. We investigated whether selected physiologic and metabolic parameters can be reliably used in the emergency department to differentiate sepsis from other disease states that mimic it, such as dehydration and stroke.

Methods

Loess regression on retrospective follow-up chart data of patients with sepsis-like symptoms (N = 664) aged 18+ in a large ER in Hungary was used to visualize/identify cutoff points for sepsis risk. A multivariate logistic regression model based on standard triage data was constructed with its corresponding receiver operating characteristic (ROC) curve and compared with another model constructed based on current sepsis guidelines.

Results

Age, bicarbonate, HR, lactate, pH, and body temperature had U, V, W, or reverse U-shaped associations with identifiable inflexion points, but the cutoff values we identified were slightly different from guideline cutoff values. In contrast to the guidelines, no inflexion points could be observed for the association of sepsis with SBP, DPB, MAP, and RR and therefore were treated as continuous variables. Compared to the guidelines-based model, the triage data-driven final model contained additional variables (age, pH, bicarbonate) and did not include lactate. The data-driven model identified about 85% of sepsis cases correctly, while the guidelines-based model identified only about 70% of sepsis cases correctly.

Conclusion

Our findings contribute to the growing body of evidence for the necessity of finding improved tools to identify sepsis at early time points, such as in the ER.

Open access
Interventional Medicine and Applied Science
Authors:
H. Vágó
,
P. Takács
,
A. Tóth
,
L. Gellér
,
Sz. Szilágyi
,
L. Molnár
,
V. Kutyifa
,
T. Simor
, and
Béla Merkely

Abstract

Cardiac electromechanical resynchronisation therapy (CRT) is an effective non-pharmacological treatment of patients suffering from drug refractory heart failure. However, approximately 20–30% of patients are non-responder. Cardiac magnetic resonance imaging (CMR) may play significant role in clarifying many questions in this patient population. Forty-five patients, suffering from severe drug refractory heart failure, underwent CMR before applying CRT. Left ventricular end-diastolic, end-systolic volumes, ejection fraction, myocardial mass, wall motion disturbances, localisation of non-viable myocardium were determined. Left ventricular dyssynchrony was determined by illustrating wall-time thickening in short-axis slices of left ventricle from basis to apex. CMR-proved underlying heart disease were postinfarction heart failure, dilated cardiomyopathy and non-compaction cardiomyopathy in 62, 27 and in 11%, respectively. Mean left ventricular ejection fraction was 24.5±10%, intraventricular dyssynchrony was 200±78 ms. In four patients, requiring surgical revascularisation after unsuccessful coronary sinus electrode implantation, optimal position for epicardial screw-in electrode was selected. According to the results of CMR, biventricular device was not implanted in 7 patients. During the follow-up of the 38 patients, 5 patients (13.16%) were non-responders, despite the approximately 22% non-responder ratio in our whole patient population treated by CRT but without performing previous CMR examination. In this patient population CMR may have a significant role in the selection of responder patient population.

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