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The objective of the investigations was to study the occurrence of the equine herpesvirus type 1 (EHV-1) infection in aborted equine fetuses and in newborn foals and to compare the sensitivity of virus isolation, immunohistochemistry and histology in 101 cases and of fetal serology in 68 cases in the diagnosis of the infection. Out of the 93 aborted equine fetuses and 8 weak foals, 15 (14.9%) (14 fetuses and 1 foal) proved to be EHV-1 infected by immunohistochemical and 13 (12.9%) by virological investigation. Characteristic microscopic changes were seen in several organs in all cases, while intranuclear inclusion bodies could be found only in 25 (35.2%) of the 71 virus-positive tissue samples. Four (5.9%) cases proved to be positive by fetal serological investigation, but none of these cases showed any EHV-1 specific lesions and in none of these cases could the virus be detected by virus isolation or by immunohistochemistry. According to the results, fetal serology does not seem to be a useful test in virus-positive cases, while the immunohistochemical method seems to be a reliable and a slightly more sensitive method than virus isolation in the diagnosis of EHV-1 infection.

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Two guinea pigs (Cavia porcellus) with clinical signs of anorexia, weight loss, depression and abdominal enlargement were examined. During ultrasound examination, a fluid-filled anechogenic structure 3–4 cm in diameter, with echogenic spots and a highly echogenic thick wall, was found in the pelvic region in one case and connected to the liver in the other case. An abscess or a cyst was suspected and surgical treatment including laparotomy was performed. By histopathological examination performed after surgery, a liver abscess was diagnosed in one guinea pig and an abscess in the pelvic region in the other animal.

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Acta Veterinaria Hungarica
Authors:
A. Beregi
,
Cs. Székely
,
L. Békési
,
Judit Szabó
,
V. Molnár
, and
K. Molnár

Radiodiagnostic methods have not been used previously for studying the anatomy and diseases of the swimbladder of freshwater fish species. In this study, the radiographic anatomy of the swimbladder and species-related differences in swimbladder structure were studied on plain radiographs taken of 12 Hungarian fish species of major economic importance. Changes observed by radiography were also studied by conventional parasitological methods. The radiodiagnostic method reported here appears to be a useful complement to diagnostic examinations that have been based merely on dissection so far. It enables evaluation of the pathological lesions in live condition, without causing damage to the fish.

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The second part of the review dealing with the diagnostic radiology of pet and wild birds discusses the indications of radiological examination, the interpretation of radiographs taken of pathological lesions, and the differential diagnosis of such lesions. Radiology has paramount importance in the diagnosis of diseases affecting the skeletal, digestive, respiratory, urogenital and cardiovascular systems. Certain diseases (shortage of grits, ovarian cysts) cannot be recognised without radiography. Other conditions (e.g. Macaw Wasting Disease, renal tumours, egg retention) require this complementary diagnostic method for confirmation of a suspicion based upon the clinical signs. Radiographic examination is also indicated for follow-up of the surgical management of bone fractures and for facilitating the implantation of transponders aimed at individual identification of the birds.

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Acta Physiologica Hungarica
Authors:
G. Nyírő
,
G. Inczédy-Farkas
,
V. Reményi
,
A. Gál
,
Zs Pál
, and
Mária Molnár

Clopidogrel is an inhibitor of platelet-aggregation used in the prevention of secondary stroke. The molecule is activated by the cytochrome P450 2C19 (CYP2C19) enzyme. The frequent CYP2C19*2 point mutation causes loss of enzyme function, a decreased (heterozygous form) or blocked (homozygous form) formation of the active molecule. Thus, for a patient harboring a mutated allele, clopidogrel does not provide effective protection against stroke. Multiple drugs inhibit the CYP2C19 enzyme and their simultaneous use with clopidogrel is especially hazardous for patients with genetically decreased enzyme activity. Frequency of the CYP2C19*2 is variable in different populations, highest rates were detected in some Asian groups. In our study the CYP2C19 genotype was determined in one Hungarian sample of 354 stroke patients and 221 healthy controls. Frequency of the minor allele was found to be 12.87% (12.85% in stroke patients, 12.89% in healthy controls). The proportion of the homozygous CYP2C19*2 variant causing total loss of gene function was 1.74%, rate of the heterozygous allele causing reduced enzyme activity was 22.26% in the total population. Our results for the allele frequencies of the CYP2C19*2 gene are similar to those found in other Caucasian populations. In conclusion, the homozygous mutation, causing ineffectiveness of clopidogrel is relatively rare. However, the heterozygous form in which interaction of CYP2C19 inhibitors causes further decrease in the genetically impaired enzyme activity is present in every fifth drug-taking patient. Based on our findings, we would like to emphasize that it is important to adjust individually antiplatelet treatment in ischemic stroke patients and to take into consideration genetic factors as well as drugs taken for comorbid conditions.

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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
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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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

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