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Makk E, Bohonyi N, Oszter A, Éles K, Tornóczky T, Tóth A, Kálmán E, Kovács K. Comparative analysis of EZH2, p16 and p53 expression in uterine carcinosarcomas. Pathol Oncol Res 2023; 29:1611547. [PMID: 38146588 PMCID: PMC10749357 DOI: 10.3389/pore.2023.1611547] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/12/2023] [Accepted: 11/28/2023] [Indexed: 12/27/2023]
Abstract
Introduction: The role of p16 and p53 immunohistochemistry in the diagnosis of rare and aggressive uterine carcinosarcoma (UCS) has been well established. However, enhancer of zeste homolog 2 (EZH2), a histone methyltransferase and a member of the polycomb group family is a relatively new biomarker, with limited published data on its significance in this tumor type. The goal of this study was to examine EZH2 expression in UCS and its components, in correlation with morphological features, and p16 and p53 staining patterns. Methods: Twenty-eight UCSs were included in the study. EZH2, p16 and p53 immunoreactivity were assessed independently by two pathologists in both tumor components (epithelial and mesenchymal). EZH2 and p16 immunostains were scored semiquantitatively: based on the percentage and intensity of tumor cell staining a binary staining index ("high- or low-expressing") was calculated. The p53 staining pattern was evaluated as wild-type or aberrant (diffuse nuclear, null, or cytoplasmic expression). Statistical tests were used to evaluate the correlation between staining patterns for all three markers and the different tumor components and histotypes. Results: High EZH2 and p16 expression and aberrant p53 patterns were present in 89.3% 78.6% and 85.7% of the epithelial component and in 78.6%, 62.5% and 82.1% of the mesenchymal component, respectively. Differences among these expression rates were not found to be significant (p > 0.05). Regarding the epithelial component, aberrant p53 pattern was found to be significantly (p = 0.0474) more frequent in the serous (100%) than in endometrioid (66.6%) histotypes. Within the mesenchymal component, p53 null expression pattern occurred significantly (p = 0.0257) more frequently in heterologous sarcoma components (71.4%) compared to the homologous histotype (18.8%). Conclusion: In conclusion, EZH2, p16 and p53 seem to play a universal role in the pathogenesis of UCS; however, a distinctive pattern of p53 expression appears to exist between the serous and endometrioid carcinoma components and also between the homologous and heterologous sarcoma components.
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Affiliation(s)
- Evelin Makk
- Department of Pathology, University of Pécs Medical School, Pécs, Hungary
| | - Noémi Bohonyi
- Department of Obstretrics and Gynaecology, University of Pécs Medical School, Pécs, Hungary
| | - Angéla Oszter
- Department of Pathology, University of Pécs Medical School, Pécs, Hungary
| | - Klára Éles
- Department of Pathology, University of Pécs Medical School, Pécs, Hungary
| | - Tamás Tornóczky
- Department of Pathology, University of Pécs Medical School, Pécs, Hungary
| | - Arnold Tóth
- Department of Medical Imaging, University of Pécs Medical School, Pécs, Hungary
| | - Endre Kálmán
- Department of Pathology, University of Pécs Medical School, Pécs, Hungary
| | - Krisztina Kovács
- Department of Pathology, University of Pécs Medical School, Pécs, Hungary
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Cserni G, Kálmán E, Udvarhelyi N, Papp E, Grote I, Bartels S, Christgen M, Kreipe H, Kulka J. Evaluation of the routine use of E-cadherin immunohistochemistry in the typing of breast carcinomas: results of a randomized diagnostic study. Histopathology 2023; 83:810-821. [PMID: 37609779 DOI: 10.1111/his.15026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Revised: 07/03/2023] [Accepted: 07/30/2023] [Indexed: 08/24/2023]
Abstract
AIMS Invasive lobular carcinoma (ILC) has distinct morphology and association with loss of E-cadherin function. It has special clinical and imaging features, and its proper recognition is important. Following a recent proposal, we tested the value of the routine use of E-cadherin immunohistochemistry (IHC) in recognizing ILC. METHODS AND RESULTS Five pathologists with experience in breast pathology from four Hungarian institutions histotyped 1001 breast cancers from diagnostic core biopsies or excision specimens randomly assigned to haematoxylin and eosin (HE) diagnosis first, followed by E-cadherin IHC; or to immediate HE and E-cadherin-based diagnosis. Of 524 cases with HE diagnosis, 73(14%) were deemed uncertain. E-cadherin made the initial histological type change in 14/524 cases (2.7%), including three with confident HE-based type allocation. Use of E-cadherin immunostaining was considered useful in 88/477 cases (18%) with immediate dual assessment, and typing uncertainty went down to 5% (25/477 cases), but was not zero. Collective assessment of 171 uncertain, difficult, nonclassical cases resulted in consensus diagnosis in most cases, but 15 cases were still doubtful as concerns their proper histological type. CDH1 gene sequencing was attempted and successful in 13; pathogenic genetic alterations were identified in seven cases. CONCLUSIONS The routine use of E-cadherin IHC decreases the uncertainty in typing and improves the typing accuracy at the cost of potentially redundant additional immunostains. Furthermore, this procedure does not exclude uncertainty due to E-cadherin-positive ILCs, which are occasionally difficult to confidently label as ILC, especially when the growth pattern is not classic.
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Affiliation(s)
- Gábor Cserni
- Department of Pathology, Bács-Kiskun County Teaching Hospital, Kecskemét, Hungary
- Department of Pathology, Albert Szent-Györgyi Medical Centre, University of Szeged, Szeged, Hungary
| | - Endre Kálmán
- Institute of Pathology, University of Pécs, Pécs, Hungary
| | - Nóra Udvarhelyi
- Department of Surgical and Molecular Pathology, Centre of Tumour Pathology, National Institute of Oncology, Budapest, Hungary
| | - Eszter Papp
- Department of Surgical and Molecular Pathology, Centre of Tumour Pathology, National Institute of Oncology, Budapest, Hungary
| | - Isabel Grote
- Institute of Pathology, Hannover Medical School, Hannover, Germany
| | - Stephan Bartels
- Institute of Pathology, Hannover Medical School, Hannover, Germany
| | | | - Hans Kreipe
- Institute of Pathology, Hannover Medical School, Hannover, Germany
| | - Janina Kulka
- Department of Pathology, Forensic and Insurance Medicine, Semmelweis University, Budapest, Hungary
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Gulyás E, Bajnok L, Nemes O, Bódis B, Szukits S, Schmidt E, Semjén D, Kálmán E, Szabados S, Kittka B, Benkő I, Mezősi E. Óriás mellkasi paraganglioma diagnosztikai nehézségei és terápiás lehetőségei. Orv Hetil 2022; 163:1243-1249. [DOI: 10.1556/650.2022.32529] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2022] [Accepted: 04/13/2022] [Indexed: 11/21/2022]
Abstract
A paragangliomák a szimpatikus vagy paraszimpatikus ganglionokból kiinduló,
többségükben jóindulatú daganatok, de rosszindulatú formájuk is ismert. A
fej-nyak régióban, a glomus caroticumban, illetve a vegetatív idegrendszer
dúcláncának megfelelően a hasüregben, illetve a mellüregben is előfordulhatnak.
A 39 éves férfi beteg kivizsgálása extrém magas vérnyomásértékek, éjszakai
izzadás és 10 kg-os fogyás miatt kezdődött. A mellkas-CT-vizsgálat a jobb oldali
tüdőkapuban óriási térfoglalást írt le, a bronchoszkópos mintavétel sikertelen
volt. Jobb oldali thoracotomiából mintavétel történt, reszekcióra a kifejezett
adhéziók, illetve a szívérintettség miatt nem volt lehetőség. A szövettani
vizsgálat eredménye paraganglioma lett, ezt a laborvizsgálatok is támogatták.
Ennek megfelelőn szomatosztatinanalóg-terápiát kezdtünk, majd
131I-MIBG-kezelést alkalmaztunk, jó klinikai eredménnyel. A
koronarográfia során észleltük, hogy a jobb coronaria két marginális ággal
hozzájárul a mellkasi terime vérellátásához. Megfelelő előkészítést követően,
szív- és mellkassebészeti beavatkozással a tumor eltávolíthatónak bizonyult,
ennek eredményeként a posztoperatív szakban a beteg vérnyomáscsökkentőit
elhagytuk. A kontrollok során tumormaradványra utaló jel nem volt. A
vérnyomáskiugrások okának keresésekor merüljön fel bennünk a paraganglioma
lehetősége is. Ezen esetekben az invazív beavatkozások, amennyiben nem előzi meg
őket gyógyszeres előkészítés, akár fatális kimenetellel járhatnak. Az egyre
szélesedő terápiás lehetőségek kihasználásával és az intézetek közötti
kooperációval az óriás-paragangliomában szenvedő betegek is tumormentessé
tehetők. Orv Hetil. 2022; 163(31): 1243–1249.
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Affiliation(s)
- Erna Gulyás
- Pécsi Tudományegyetem, Általános Orvostudományi Kar, Klinikai Központ, I. Belgyógyászati Klinika, Endokrinológiai és Anyagcsere Tanszék Pécs, Ifjúság u. 13., 7624 Magyarország
| | - László Bajnok
- Pécsi Tudományegyetem, Általános Orvostudományi Kar, Klinikai Központ, I. Belgyógyászati Klinika, Endokrinológiai és Anyagcsere Tanszék Pécs, Ifjúság u. 13., 7624 Magyarország
| | - Orsolya Nemes
- Pécsi Tudományegyetem, Általános Orvostudományi Kar, Klinikai Központ, I. Belgyógyászati Klinika, Endokrinológiai és Anyagcsere Tanszék Pécs, Ifjúság u. 13., 7624 Magyarország
| | - Beáta Bódis
- Pécsi Tudományegyetem, Általános Orvostudományi Kar, Klinikai Központ, I. Belgyógyászati Klinika, Endokrinológiai és Anyagcsere Tanszék Pécs, Ifjúság u. 13., 7624 Magyarország
| | - Sándor Szukits
- Pécsi Tudományegyetem, Általános Orvostudományi Kar, Klinikai Központ, Orvosi Képalkotó Klinika Pécs Magyarország
| | - Erzsébet Schmidt
- Pécsi Tudományegyetem, Általános Orvostudományi Kar, Klinikai Központ, Orvosi Képalkotó Klinika Pécs Magyarország
| | - Dávid Semjén
- Pécsi Tudományegyetem, Általános Orvostudományi Kar, Klinikai Központ, Pathológiai Intézet Pécs Magyarország
| | - Endre Kálmán
- Pécsi Tudományegyetem, Általános Orvostudományi Kar, Klinikai Központ, Pathológiai Intézet Pécs Magyarország
| | - Sándor Szabados
- Pécsi Tudományegyetem, Általános Orvostudományi Kar, Klinikai Központ, Szívgyógyászati Klinika Pécs Magyarország
| | - Bálint Kittka
- Pécsi Tudományegyetem, Általános Orvostudományi Kar, Klinikai Központ, Szívgyógyászati Klinika Pécs Magyarország
| | - István Benkő
- Pécsi Tudományegyetem, Általános Orvostudományi Kar, Klinikai Központ, Sebészeti Klinika Pécs Magyarország
| | - Emese Mezősi
- Pécsi Tudományegyetem, Általános Orvostudományi Kar, Klinikai Központ, I. Belgyógyászati Klinika, Endokrinológiai és Anyagcsere Tanszék Pécs, Ifjúság u. 13., 7624 Magyarország
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Cserni G, Francz M, Járay B, Kálmán E, Kovács I, Krenács T, Tóth E, Udvarhelyi N, Vass L, Vörös A, Krivokuca A, Kajo K, Kajová Macháleková K, Kulka J. Pathological Diagnosis, Work-Up and Reporting of Breast Cancer 1st Central-Eastern European Professional Consensus Statement on Breast Cancer. Pathol Oncol Res 2022; 28:1610373. [PMID: 35845921 PMCID: PMC9284216 DOI: 10.3389/pore.2022.1610373] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Accepted: 04/29/2022] [Indexed: 12/18/2022]
Abstract
This text is based on the recommendations accepted by the 4th Hungarian Consensus Conference on Breast Cancer, modified on the basis of the international consultation and conference within the frames of the Central-Eastern European Academy of Oncology. The recommendations cover non-operative, intraoperative and postoperative diagnostics, determination of prognostic and predictive markers and the content of cytology and histology reports. Furthermore, they address some specific issues such as the current status of multigene molecular markers, the role of pathologists in clinical trials and prerequisites for their involvement, and some remarks about the future.
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Affiliation(s)
- Gábor Cserni
- Department of Pathology, Bács-Kiskun County Teaching Hospital, Kecskemét, Hungary
- Institute of Pathology, University of Szeged, Szeged, Hungary
- *Correspondence: Gábor Cserni,
| | - Monika Francz
- Department of Pathology, Szabolcs-Szatmár-Bereg County Hospitals and University Teaching Hospital, “Jósa András” Teaching Hospital, Nyíregyháza, Hungary
| | | | - Endre Kálmán
- Institute of Pathology, University of Pécs, Pécs, Hungary
| | - Ilona Kovács
- Department of Pathology, University of Debrecen, “Kenézy Gyula” University Hospital, Debrecen, Hungary
| | - Tibor Krenács
- Department of Pathology and Experimental Cancer Research, Semmelweis University, Budapest, Hungary
| | - Erika Tóth
- Department of Pathology, National Institute of Oncology, Budapest, Hungary
| | - Nóra Udvarhelyi
- Department of Pathology, National Institute of Oncology, Budapest, Hungary
| | - László Vass
- Department of Pathology, Pest County “Flór Ferenc” University Teaching Hospital, Kistarcsa, Hungary
| | - András Vörös
- Institute of Pathology, University of Szeged, Szeged, Hungary
| | - Ana Krivokuca
- Institute for Oncology and Radiology of Serbia, Belgrade, Serbia
| | - Karol Kajo
- Department of Pathology, St. Elisabeth Cancer Institute, Bratislava, Slovakia
| | | | - Janina Kulka
- Department of Pathology, Forensic and Insurance Medicine, Semmelweis University, Budapest, Hungary
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5
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Pesti A, Gyömörei C, Juhász P, Kálmán E, Kiss A, Kuthi L, Lotz G, Méhes G, Schaff Z, Tiszlavicz L. SARS-CoV-2-fehérjék kimutatása immunhisztokémiai módszerrel emberi szövetekben. Orv Hetil 2022; 163:975-983. [DOI: 10.1556/650.2022.32536] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Accepted: 04/19/2022] [Indexed: 11/19/2022]
Abstract
Bevezetés: A SARS-CoV-2 (súlyos akut légzőszervi szindrómát
előidéző koronavírus) okozta COVID–19 világszerte sajnálatosan nagy halálozással
jár. A fertőzés kimutatása elsősorban polimeráz-láncreakcióval (PCR) történik
élőben vagy a halál után, amely azonban nem ad információt arról, hogy a vírus
mely sejtekben, szövetekben van jelen. A SARS-CoV-2 tüske- és
nukleokapszid-proteinjeinek, valamint a vírus-ribonukleinsavnak (RNS) az
in situ kimutatása igazolhatja a vírus jelenlétét, valamint
adatot szolgáltathat annak direkt vagy indirekt sejtpusztulást okozó
mechanizmusáról. Jelenleg számos SARS-CoV-2-tüske- és -nukleokapszid
fehérjeellenes antitest van kereskedelmi forgalomban, melyek eltérő eredménnyel
képesek a megfelelő antigének kimutatására. Célkitűzés: A jelen
munka célja a megfelelő, megbízhatóan működő antitest kiválasztása volt.
Módszer: COVID–19-ben elhunyt 3 egyén formalinfixált,
paraffinba ágyazott, SARS-CoV-2-PCR-pozitív tüdejének anyagai, valamint
fertőzött placenta anonim módon jelölt mintái kerültek vizsgálatra, megfelelő
negatív kontrollal. Az immunhisztokémiai reakciók intenzitását és specificitását
hasonlították össze négy hazai orvostudományi egyetemi patológiai intézet
részvételével, különböző antitesteket és hígításokat alkalmazva. Az elvégzett
immunhisztokémiai reakciók szkennelt, kódolt metszeteken kerültek értékelésre,
majd az eredmények összesítése után statisztikai elemzésre.
Eredmények: A vizsgálatok alapján meghatározhatók voltak
azon antitestek, amelyek a jelölt hígításban és módszerrel megfelelő
intenzitású, megbízható eredményt adtak. Következtetés: A
vizsgálat alapot ad arra, hogy a SARS-CoV-2 egyes komponensei biopsziás/sebészi
anyagban és az elhunytak szöveteiben nagy pontossággal és reprodukálható módon
kimutathatók legyenek a COVID–19-ben megbetegedett, elhunyt egyének élőben vagy
halál után eltávolított szöveteiben, sejtjeiben. Orv Hetil. 2022; 163(25):
975–983.
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Affiliation(s)
- Adrián Pesti
- Semmelweis Egyetem, Általános Orvostudományi Kar, Patológiai, Igazságügyi és Biztosítási Orvostani Intézet Budapest, Üllői út 93., 1091 Magyarország
| | - Csaba Gyömörei
- Pécsi Tudományegyetem, Klinikai Központ, Általános Orvostudományi Kar, Patológiai Intézet Pécs Magyarország
| | - Péter Juhász
- Debreceni Egyetem, Általános Orvostudományi Kar, Patológiai Intézet Debrecen Magyarország
| | - Endre Kálmán
- Pécsi Tudományegyetem, Klinikai Központ, Általános Orvostudományi Kar, Patológiai Intézet Pécs Magyarország
| | - András Kiss
- Semmelweis Egyetem, Általános Orvostudományi Kar, Patológiai, Igazságügyi és Biztosítási Orvostani Intézet Budapest, Üllői út 93., 1091 Magyarország
| | - Levente Kuthi
- Szegedi Tudományegyetem, Szent-Györgyi Albert Orvostudományi Kar, Patológiai Intézet Szeged Magyarország
| | - Gábor Lotz
- Semmelweis Egyetem, Általános Orvostudományi Kar, Patológiai, Igazságügyi és Biztosítási Orvostani Intézet Budapest, Üllői út 93., 1091 Magyarország
| | - Gábor Méhes
- Debreceni Egyetem, Általános Orvostudományi Kar, Patológiai Intézet Debrecen Magyarország
| | - Zsuzsa Schaff
- Semmelweis Egyetem, Általános Orvostudományi Kar, Patológiai, Igazságügyi és Biztosítási Orvostani Intézet Budapest, Üllői út 93., 1091 Magyarország
| | - László Tiszlavicz
- Szegedi Tudományegyetem, Szent-Györgyi Albert Orvostudományi Kar, Patológiai Intézet Szeged Magyarország
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Rideg O, Oszter A, Makk E, Kálmán E, Farkas K, Tornóczky T, Kovács K. Wide Spectrum Analysis of Human Papillomavirus Genotypes in External Anogenital Warts. Vaccines (Basel) 2021; 9:604. [PMID: 34198774 PMCID: PMC8230260 DOI: 10.3390/vaccines9060604] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Revised: 05/31/2021] [Accepted: 06/04/2021] [Indexed: 12/26/2022] Open
Abstract
External anogenital warts (EGW) are primarily associated with the low-risk human papillomavirus (HPV) genotypes 6 and 11, though coinfection with other low-risk and oncogenic high-risk HPV genotypes also occurs. Although there have been many studies on HPV-associated disease, the prevalence of HPV genotypes associated with EGW is not well characterized. The objective of our retrospective study was to determine the prevalence of HPV genotypes among patients diagnosed with EGW in the south-west of Hungary. Archived formalin-fixed paraffin-embedded tissues from 94 patients were processed in our study. HPV genotypes were determined, applying HPV Direct Flow CHIP test. The overall prevalence of HPV DNA in the EGW samples was 100%, yielding 131 infections among the 94 samples. Of these cases, 72.3% were mono while 27.6% were multi-infections. Out of the 131 infections, the cumulative prevalence of HPV 6 and 11 was 71%. A total of 98.9% of the samples were carrying at least one of these genotypes, while 19.1% of the cases occurred with at least one high-risk genotype. Data from our study could provide invaluable information concerning the prevalence of HPV types among patients with EGW, enabling improved assessment of the actual and future efficacy of vaccination programs, vaccine development, and forecast changes in infection patterns.
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Affiliation(s)
- Orsolya Rideg
- Department of Pathology, Medical School and Clinical Center, University of Pécs, 7624 Pécs, Hungary; (O.R.); (A.O.); (E.M.); (E.K.); (K.K.)
| | - Angéla Oszter
- Department of Pathology, Medical School and Clinical Center, University of Pécs, 7624 Pécs, Hungary; (O.R.); (A.O.); (E.M.); (E.K.); (K.K.)
| | - Evelin Makk
- Department of Pathology, Medical School and Clinical Center, University of Pécs, 7624 Pécs, Hungary; (O.R.); (A.O.); (E.M.); (E.K.); (K.K.)
- Department of Medical Imaging, Medical School and Clinical Center, University of Pécs, 7624 Pécs, Hungary
| | - Endre Kálmán
- Department of Pathology, Medical School and Clinical Center, University of Pécs, 7624 Pécs, Hungary; (O.R.); (A.O.); (E.M.); (E.K.); (K.K.)
| | - Kornélia Farkas
- Institute of Bioanalysis, Medical School and Clinical Center, University of Pécs, 7624 Pécs, Hungary;
| | - Tamás Tornóczky
- Department of Pathology, Medical School and Clinical Center, University of Pécs, 7624 Pécs, Hungary; (O.R.); (A.O.); (E.M.); (E.K.); (K.K.)
| | - Krisztina Kovács
- Department of Pathology, Medical School and Clinical Center, University of Pécs, 7624 Pécs, Hungary; (O.R.); (A.O.); (E.M.); (E.K.); (K.K.)
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7
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Kinyó Á, Kovács AL, Degrell P, Kálmán E, Nagy N, Kárpáti S, Gyulai R, Saeidian AH, Youssefian L, Vahidnezhad H, Uitto J. Homozygous ITGA3 Missense Mutation in Adults in a Family with Syndromic Epidermolysis Bullosa (ILNEB) Without Pulmonary Involvement. J Invest Dermatol 2021; 141:2752-2756. [PMID: 34023363 DOI: 10.1016/j.jid.2021.03.029] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Revised: 03/25/2021] [Accepted: 03/26/2021] [Indexed: 10/21/2022]
Affiliation(s)
- Ágnes Kinyó
- Department of Dermatology, Venereology and Oncodermatology, UP Clinical Centre, University of Pécs Medical School, Pécs, Hungary
| | - András László Kovács
- Department of Dermatology, Venereology and Oncodermatology, UP Clinical Centre, University of Pécs Medical School, Pécs, Hungary
| | - Péter Degrell
- Department of Pathology, Moritz Kaposi General Hospital, Kaposvár, Hungary
| | - Endre Kálmán
- Department of Pathology, UP Clinical Centre, University of Pécs Medical School, Pécs, Hungary
| | - Nikoletta Nagy
- Department of Medical Genetics, University of Szeged, Szeged, Hungary
| | - Sarolta Kárpáti
- Department of Dermatology, Venereology and Dermato-oncology, Faculty of Medicine, Semmelweis University, Budapest, Hungary
| | - Rolland Gyulai
- Department of Dermatology, Venereology and Oncodermatology, UP Clinical Centre, University of Pécs Medical School, Pécs, Hungary
| | - Amir Hossein Saeidian
- Department of Dermatology & Cutaneous Biology, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, Pennsylvania, USA; Jefferson Institute of Molecular Medicine, Department of Dermatology & Cutaneous Biology, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, Pennsylvania, USA; Genetics, Genomics & Cancer Biology PhD Program, College of Life Sciences, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
| | - Leila Youssefian
- Department of Dermatology & Cutaneous Biology, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, Pennsylvania, USA; Jefferson Institute of Molecular Medicine, Department of Dermatology & Cutaneous Biology, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
| | - Hassan Vahidnezhad
- Department of Dermatology & Cutaneous Biology, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, Pennsylvania, USA; Jefferson Institute of Molecular Medicine, Department of Dermatology & Cutaneous Biology, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
| | - Jouni Uitto
- Department of Dermatology & Cutaneous Biology, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, Pennsylvania, USA; Jefferson Institute of Molecular Medicine, Department of Dermatology & Cutaneous Biology, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, Pennsylvania, USA.
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8
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Csonka V, Bódis B, Kovács D, Farkas N, Kálmán E, Czirják L, Varjú C. Screening for the presence of scleroedema adultorum of Buschke in patients with diabetes mellitus: newly diagnosed patients had a high prevalence of dyslipidaemia. Lipids Health Dis 2021; 20:47. [PMID: 33952255 PMCID: PMC8101242 DOI: 10.1186/s12944-021-01473-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Accepted: 04/21/2021] [Indexed: 12/03/2022] Open
Abstract
Background Scleroedema adultorum of Buschke is a rare disorder characterized by fibromucinous thickening of the dermis that manifests mainly at the nape of the neck and on the upper back and shoulders. This study screened patients with diabetes mellitus for skin hardening caused by scleroedema adultorum of Buschke and characterized the clinical and laboratory findings in patients with newly identified cases, with a focus on lipid metabolism abnormalities and vascular complications. Methods Out of 113 consecutive patients with diabetes, 11 (9.7%) new scleroedema patients, all with type 2 diabetes, were found. Their clinical and laboratory data were compared to those of the rest of the screened patients and to those of a cohort of 15 patients with scleroedema and diabetes who were already being treated in a tertiary clinical centre at the University of Pécs. Results Higher proportions of patients with dyslipidaemia, hypertriglyceridemia (P < 0.05) and increased mean levels of non-high-density lipoprotein cholesterol (non-HDL-C) were found (P < 0.01) in both scleroedema groups than in the group without scleroedema. Stroke and venous thromboembolism (VTE) were more frequently found in the histories of both the newly identified scleroedema group (each 3/11; 27.3%) and the treated cohort (each 6/15; 40.0%) than in the group without scleroedema (6/102; 5.9% in cases of stroke P = 0.021, P < 0.001; and 14/102; 13.7%; P < 0.05 in cases of VTE, respectively). Based on binary logistic regression, a high non-HDL-C level (odds ratio (OD): 3.338, confidence interval (CI): 1.77–6.28; P < 0.001) and insulin treatment (OR 7.64, CI 1.9–29.3; P = 0.003) were independent predictors of scleroedema in patients with diabetes mellitus. Conclusions Diabetes patients with scleroedema had more severe dyslipidaemia and higher occurrence of vascular complications compared to those without scleroedema. In addition to poorly controlled type 2 diabetes mellitus requiring insulin treatment, high non-HDL-C levels may be another contributing factor to the development of scleroedema. Trial registration NCT04335396.
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Affiliation(s)
- Viktória Csonka
- Department of Rheumatology and Immunology, Medical School, University of Pécs, Akác u. 1, Pécs, H-7632, Hungary.,Department of Internal Medicine, Teaching Hospital Mór Kaposi, Kaposvár, Hungary
| | - Beáta Bódis
- 1st Department of Internal Medicine, Medical School, University of Pécs, Pécs, Hungary
| | - Dániel Kovács
- Department of Vascular Surgery, Medical School, University of Pécs, Pécs, Hungary
| | - Nelli Farkas
- Institute of Bioanalysis, Medical School, University of Pécs, Pécs, Hungary
| | - Endre Kálmán
- Department of Pathology, Medical School, University of Pécs, Pécs, Hungary
| | - László Czirják
- Department of Rheumatology and Immunology, Medical School, University of Pécs, Akác u. 1, Pécs, H-7632, Hungary
| | - Cecília Varjú
- Department of Rheumatology and Immunology, Medical School, University of Pécs, Akác u. 1, Pécs, H-7632, Hungary.
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9
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Cserni G, Francz M, Járay B, Kálmán E, Kovács I, Krenács T, Tóth E, Udvarhelyi N, Vass L, Vörös A, Kulka J. [Pathological diagnosis, work-up and reporting of breast cancer. Recommendations from the 4th Breast Cancer Consensus Conference]. Magy Onkol 2020; 64:301-328. [PMID: 33313608] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2020] [Accepted: 11/30/2020] [Indexed: 06/12/2023]
Abstract
There have been some relevant changes in the diagnosis and treatment of breast cancer to implement the updating of the 2016 recommendations made during the 3rd national consensus conference on the disease. Following a wide interdisciplinary consultation, the present recommendations have been finalized after their public discussion at the 4th Hungarian Breast Cancer Consensus Conference. The recommendations cover non-operative, intraoperative and postoperative diagnostics, the determination of prognostic and predictive markers and the content of the cytology and histology reports. Furthermore, it touches some special issues such as the current status of multigene molecular markers, the role of pathologists in clinical trials and prerequisites for their involvement, some relevant points about the future. The most important changes include the integration of the TNM 8th edition, the WHO classification of breast tumors 5th edition, the ASCO/CAP HER2 assessment guidelines from 2018, and the Yokohama terminology for cytology reporting; a more detailed text on tumor-infiltrating lymphocytes and size determination after neoadjuvant therapy and a broader discussion of molecular tests.
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Affiliation(s)
- Gábor Cserni
- Patológiai Osztály, Bács-Kiskun Megyei Kórház, Kecskemét, Hungary.
| | - Monika Francz
- Patológiai Osztály, Szabolcs-Szatmár-Bereg Megyei Kórházak és Egyetemi Oktatókórház, Jósa András Oktatókórház, Nyíregyháza, Hungary
| | | | - Endre Kálmán
- Patológiai Intézet, Pécsi Tudományegyetem, Pécs, Hungary
| | - Ilona Kovács
- Kenézy Gyula Egyetemi Kórház, DE, Patológia, Debrecen, Hungary
| | - Tibor Krenács
- I. Sz. Patológiai és Kísérleti Rákkutató Intézet, Semmelweis Egyetem, Budapest, Hungary
| | - Erika Tóth
- Országos Onkológiai Intézet, Budapest, Hungary
| | | | - László Vass
- Patológiai Osztály, Pest Megyei Flór Ferenc Egyetemi Oktatókórház, Kistarcsa, Hungary
| | - András Vörös
- Patológiai Intézet, Szegedi Tudományegyetem, Szeged, Hungary
| | - Janina Kulka
- II. Sz. Patológiai Intézet, Semmelweis Egyetem, Budapest, Hungary
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10
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Révész P, Gerlinger I, Kálmán E, Koukkoullis A, Burián A, Tóth I. Eosinophil otitis media – egy kevéssé ismert kórkép kezelési nehézségei. Orv Hetil 2020; 161:1769-1775. [DOI: 10.1556/650.2020.31851] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Accepted: 05/20/2020] [Indexed: 11/19/2022]
Abstract
Absztrakt:
Az eosinophil otitis media az utóbbi évtizedben került a kutatók és a klinikum
látóterébe; jellemzője a középfülben termelődő, eosinophil granulocytákkal
telített mucosus, nehezen eltávolítható váladék és az asthma bronchiale,
valamint a krónikus rhinosinusitis társulása. A betegség egyelőre kevéssé ismert
a klinikumban, emiatt nincsenek információk a pontos előfordulási gyakoriságáról
sem. A kórkép nem gyógyítható, de kezelésére beváltak az intratympanalisan
használható szteroidkészítmények, melyek azonban csak enyhébb fokú betegség
esetén vezetnek eredményre. A súlyosabb gradusú eosinophil otitis media dobüregi
granulációs szövet képződésével és idegi halláscsökkenéssel is járhat, ami
sebészi eltávolítást és per os szteroidkezelést is igényel.
Fontos felhívni a figyelmet a kórkép létezésére, mert a megfelelő diagnózis
felállítása után az időben elkezdett kezeléssel elkerülhető lehet az
életminőséget rontó fülváladékozás, felülfertőződés és az idegi halláscsökkenés.
A jelen közleményben a szerzők a nemzetközi szakirodalom áttekintésén túl saját
esetbemutatásokon keresztül demonstrálják a betegség enyhe és súlyos fokú
változatának kezelési lépéseit. Orv Hetil. 2020; 161(41): 1769–1775.
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Affiliation(s)
- Péter Révész
- 1 Általános Orvostudományi Kar, Klinikai Központ, Fül-, Orr-, Gégészeti és Fej-, Nyaksebészeti Klinika, Pécsi Tudományegyetem, Pécs, Munkácsy M. u. 2., 7621
| | - Imre Gerlinger
- 1 Általános Orvostudományi Kar, Klinikai Központ, Fül-, Orr-, Gégészeti és Fej-, Nyaksebészeti Klinika, Pécsi Tudományegyetem, Pécs, Munkácsy M. u. 2., 7621
| | - Endre Kálmán
- 2 Általános Orvostudományi Kar, Klinikai Központ, Pathologiai Intézet, Pécsi Tudományegyetem, Pécs
| | - Alexandros Koukkoullis
- 1 Általános Orvostudományi Kar, Klinikai Központ, Fül-, Orr-, Gégészeti és Fej-, Nyaksebészeti Klinika, Pécsi Tudományegyetem, Pécs, Munkácsy M. u. 2., 7621
| | - András Burián
- 1 Általános Orvostudományi Kar, Klinikai Központ, Fül-, Orr-, Gégészeti és Fej-, Nyaksebészeti Klinika, Pécsi Tudományegyetem, Pécs, Munkácsy M. u. 2., 7621
| | - István Tóth
- 1 Általános Orvostudományi Kar, Klinikai Központ, Fül-, Orr-, Gégészeti és Fej-, Nyaksebészeti Klinika, Pécsi Tudományegyetem, Pécs, Munkácsy M. u. 2., 7621
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11
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Horváth KB, Boros Á, Kálmán E, Pankovics P, Delwart E, Reuter G. Characterization of an integrated, endogenous mouse mammary tumor virus-like (MMTV) betaretrovirus genome in a black Syrian hamster (Mesocricetus auratus). Infect Genet Evol 2019; 75:103995. [PMID: 31404669 DOI: 10.1016/j.meegid.2019.103995] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/12/2019] [Revised: 08/02/2019] [Accepted: 08/05/2019] [Indexed: 11/28/2022]
Abstract
Retroviruses (family Retroviridae) are important agents of humans and animals. This study reports the detection and complete genome characterization of a novel endogenous retrovirus from the black Syrian hamster (Mesocricetus auratus) with a squamous cell skin tumor. The proviral genome, tentatively named black Syrian hamster retrovirus (BSHRV/2013/HUN, MK304634), was 8784 nucleotide in length with typical full-length betaretrovirus genome organization of 5'LTR-gag-pro-pol-env-3'LTR and with a characteristic mouse mammary tumor virus-like (MMTV) betaretrovirus dUTPase domain but without a sag gene. The BSHRV gag (534aa), pro/pol (~1099aa) and env (672aa) proteins had 56%/63%/50% aa identity to the corresponding proteins of MMTV (AF228552). The proviral DNA is detectable in tumor as well as in tumor-free cells by conventional PCR and qPCR but only visible in the tumor cells by in situ hybridization. Low level retroviral RNA expression was found only in the DNase-treated RNA tumor samples using RT/nested PCR. BSHRV/2013/HUN-like betaretrovirus DNA was also identified from a faecal and tissue samples from 1 of the further 3 tested individuals by nested-PCR and qPCR. Further research is needed to investigate the distribution, activity and etiological role of this novel MMTV-like betaretrovirus species in hamster.
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Affiliation(s)
- Katalin B Horváth
- Department of Medical Microbiology and Immunology, Medical School, University of Pécs, Pécs, Hungary; Regional Laboratory of Virology, National Reference Laboratory of Gastroenteric Viruses, ÁNTSZ Regional Institute of State Public Health Service, Pécs, Hungary
| | - Ákos Boros
- Department of Medical Microbiology and Immunology, Medical School, University of Pécs, Pécs, Hungary; Regional Laboratory of Virology, National Reference Laboratory of Gastroenteric Viruses, ÁNTSZ Regional Institute of State Public Health Service, Pécs, Hungary
| | - Endre Kálmán
- Department of Pathology, Medical School, University of Pécs, Pécs, Hungary
| | - Péter Pankovics
- Department of Medical Microbiology and Immunology, Medical School, University of Pécs, Pécs, Hungary; Regional Laboratory of Virology, National Reference Laboratory of Gastroenteric Viruses, ÁNTSZ Regional Institute of State Public Health Service, Pécs, Hungary
| | - Eric Delwart
- Blood Systems Research Institute, San Francisco, CA, USA; University of California, San Francisco, CA, USA
| | - Gábor Reuter
- Department of Medical Microbiology and Immunology, Medical School, University of Pécs, Pécs, Hungary; Regional Laboratory of Virology, National Reference Laboratory of Gastroenteric Viruses, ÁNTSZ Regional Institute of State Public Health Service, Pécs, Hungary.
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12
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Fakan B, Baranyi E, Horváth R, Kálmán E, Kulka J, Tölgyesi K, Török M, Udvarhelyi N, Zombori T, Cserni G. [Evaluation of resection margins following breast conserving surgery for breast cancer. A multicentric retrospective study]. Orv Hetil 2019; 160:1036-1044. [PMID: 31230468 DOI: 10.1556/650.2019.31449] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Introduction: Breast conserving surgery for breast cancer requires the analysis of surgical margins. If the tumor is not removed completely, additional treatments (reoperation, boost irradiation) are generally recommended. Aim: To analyze the information content of histopathology reports on surgical margins in consecutive cases of breast conservation for invasive female breast cancer, to evaluate the frequency of incompletely removed tumors and to estimate the rate of further treatments after incomplete removal. Method: Analysis of margin related data of consecutive histopathology reports from 8 Hungarian pathology units with locoregional treatment related data in case of unsafe margins. Results: 386 reports were analyzed after exclusions. 200 and 32 cases were identified as having unsafe margins according to the previous (<5 mm) and the new (0 mm) definition of unclear margin, respectively. Unsafe margins were more common with lobular carcinomas. Specimens with clear margins weighed more. Reoperations for unsafe margins were performed in 43/180 and 12/22 cases according to the previous and the new definitions, respectively. Only 75/137 patients without reoperation received boost irradiation of the tumor bed; information on boost radiotherapy was often missing. Residual cancer was identified in 15/43 reoperated patients, of whom 9 had >0 mm margin distance. Conclusions: Some pathology reports lack information on surgical margins. Unsafe margin rates decreased with the new definition. Residual cancer may be left behind in case of clear margins with no ink on tumor. Neither reoperation, nor boost radiotherapy is given to some patients with unclear surgical margins. Orv Hetil. 2019; 160(26): 1036-1044.
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Affiliation(s)
- Bernadett Fakan
- Neurológiai és Stroke Osztály, Bács-Kiskun Megyei Kórház Kecskemét, Nyíri út 38., 6000
| | - Eszter Baranyi
- Szegedi Tudományegyetem, Általános Orvostudományi Kar Szeged
| | - Réka Horváth
- Patológiai Osztály, Flór Ferenc Kórház Kistarcsa
| | - Endre Kálmán
- Patológiai Intézet, Pécsi Tudományegyetem, Általános Orvostudományi Kar Pécs
| | - Janina Kulka
- II. Patológiai Intézet, Semmelweis Egyetem, Általános Orvostudományi Kar Budapest
| | - Katalin Tölgyesi
- Patológiai Osztály, Szabolcs-Szatmár-Bereg Megyei Kórházak és Egyetemi Oktatókórház - Jósa András Oktatókórház Nyíregyháza
| | - Miklós Török
- Patológiai Osztály, Debreceni Egyetem Kenézy Gyula Egyetemi Kórház Debrecen
| | - Nóra Udvarhelyi
- Daganatpatológiai Központ, Sebészeti és Molekuláris Patológiai Osztály, Országos Onkológiai Intézet Budapest
| | - Tamás Zombori
- Patológiai Intézet, Szegedi Tudományegyetem, Általános Orvostudományi Kar Szeged
| | - Gábor Cserni
- Patológiai Intézet, Szegedi Tudományegyetem, Általános Orvostudományi Kar Szeged.,Patológiai Osztály, Bács-Kiskun Megyei Kórház Kecskemét
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13
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Makk E, Bálint L, Cifra J, Tornóczky T, Oszter A, Tóth A, Kálmán E, Kovács K. Robust expression of EZH2 in endocervical neoplastic lesions. Virchows Arch 2019; 475:95-104. [PMID: 30903272 PMCID: PMC6611890 DOI: 10.1007/s00428-019-02550-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2018] [Revised: 02/22/2019] [Accepted: 02/25/2019] [Indexed: 12/17/2022]
Abstract
The aim of this study was to evaluate the nuclear expression of histone methyltransferase enhancer of zeste homolog 2 (EZH2) in endocervical neoplastic lesions such as invasive endocervical adenocarcinoma (ECA) and cervical in situ adenocarcinoma (AIS) in comparison with normal endocervix and non-neoplastic counterparts. A total of 54 consecutive neoplastic cases (37 ECA, 17 AIS) and 32 non-neoplastic endocervical lesions (15 reactive atypia, 9 microglandular hyperplasia, 3 tuboendometrioid metaplasia, 3 tunnel cluster, 2 endometriosis) were included in the study with adjacent normal endocervix if present. EZH2 immunoreactivity was evaluated semiquantitatively by three independent experts in lesions and adjacent normal glandular epithelium as well. EZH2 expression was defined robust if at least two of the three experts rated partial or diffuse positivity. Robust EZH2 expression was statistically compared among the neoplastic, non-neoplastic, and normal glandular epithelium samples. Diagnostic test capability of robust EZH2 expression was calculated. Fifty-three out of the 54 neoplastic cases (98%) showed robust EZH2 expression. Robust EZH2 expression was significantly less often (4 out of 32 cases, 12.5%) found in the non-neoplastic endocervical lesions (p < 0.0001) and never (0 out of 66 samples) in the adjacent normal glandular epithelium. Robust EZH2 overexpression had a sensitivity and specificity of over 95% in detecting neoplastic lesions versus non-neoplastic lesions or normal glandular epithelium. EZH2 may play a role in the pathogenesis of endocervical neoplasia, and the detection of robust expression of EZH2 might be a useful differential diagnostic tool in problematic endocervical lesions in histology and cytology as well.
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Affiliation(s)
- Evelin Makk
- Department of Pathology, University of Pécs Medical School, Szigeti út 12, Pécs, 7624, Hungary.
| | - Levente Bálint
- Department of Pathology, University of Pécs Medical School, Szigeti út 12, Pécs, 7624, Hungary
| | - János Cifra
- Department of Pathology, County Hospital Tolna, János Balassa Hospital, Béri Balogh Ádám u. 5-7, Szekszárd, 7100, Hungary
| | - Tamás Tornóczky
- Department of Pathology, University of Pécs Medical School, Szigeti út 12, Pécs, 7624, Hungary
| | - Angéla Oszter
- Department of Pathology, University of Pécs Medical School, Szigeti út 12, Pécs, 7624, Hungary
| | - Arnold Tóth
- Department of Radiology, University of Pécs Medical School, Ifjúság út 13, Pécs, 7624, Hungary
| | - Endre Kálmán
- Department of Pathology, University of Pécs Medical School, Szigeti út 12, Pécs, 7624, Hungary
| | - Krisztina Kovács
- Department of Pathology, University of Pécs Medical School, Szigeti út 12, Pécs, 7624, Hungary
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14
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Szlávicz E, Kálmán E, Gyömörei C, Kovács LA, Ócsai H, Varga E, Oláh J, Gyulai R, Lengyel Z. Presence of varicella zoster virus in zosteriform leukaemia cutis. Clin Exp Dermatol 2019; 44:e200-e204. [PMID: 30628105 DOI: 10.1111/ced.13899] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/09/2018] [Indexed: 12/01/2022]
Abstract
Leukaemia cutis is a relatively rare manifestation in chronic lymphocytic leukaemia, characterized by a diverse morphology of skin lesions. We report two patients who developed zosteriform skin symptoms; however, the histological analysis revealed leukaemia infiltration as the cause of their symptoms. Contrary to previous reports, varicella zoster virus DNA was detectable in the lesions. These findings suggest that varicella zoster virus plays an active role in the development of zosteriform leukaemia cutis.
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Affiliation(s)
- E Szlávicz
- Department of Dermatology, Venereology and Oncodermatology, University of Pecs, Pecs, Hungary
| | - E Kálmán
- Department of Dermatology, Venereology and Oncodermatology, University of Pecs, Pecs, Hungary
| | - C Gyömörei
- Department of Dermatology and Allergology, University of Szeged, Szeged, Hungary
| | - L A Kovács
- Department of Dermatology, Venereology and Oncodermatology, University of Pecs, Pecs, Hungary
| | - H Ócsai
- Department of Dermatology and Allergology, University of Szeged, Szeged, Hungary
| | - E Varga
- Department of Dermatology and Allergology, University of Szeged, Szeged, Hungary
| | - J Oláh
- Department of Dermatology and Allergology, University of Szeged, Szeged, Hungary
| | - R Gyulai
- Department of Dermatology, Venereology and Oncodermatology, University of Pecs, Pecs, Hungary
| | - Z Lengyel
- Department of Dermatology, Venereology and Oncodermatology, University of Pecs, Pecs, Hungary
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15
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Szőts M, Blaabjerg M, Kondziella D, Herceg M, Diószeghy P, Bajzik G, Berki T, Kálmán E, Nagy F, Illés Z. Four cases of GABAB receptor encephalitis. Ideggyogy Sz 2018; 69:281-287. [PMID: 29465894 DOI: 10.18071/isz.69.0281] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
GABAB receptor (gamma-aminobutyric acid type B receptors - GABABR) encephalitis is a rare manifestation of autoimmune encephalitides. We report four cases - including the first two Hungarian patients - with some peculiar features. One patient developed subacute disorientation and almost complete loss of short-term memory, but no epilepsy. Without immunotherapy, his memory spontaneously improved up to mild cognitive impairment in six weeks. GABABR antibodies persisted in his serum, and 18 months later, FDG-PET detected abnormal mediastinal lymph nodes and small cell lung cancer (SCLC). Another patient had persistently decreased sodium content in the peripheral blood. In those three patients who died, CSF was abnormal, but CSF was not pathological in the patient, who spontaneously improved. Brain MRI indicated signal intensity changes in the medial temporal areas in three cases. SCLC was found in three patients. Only the patient, who spontaneously improved, survived for more than 24 months. In summary, our cases show that (i) GABABR encephalitis may develop without epilepsy; (ii) the severe short-term memory loss can spontaneously improve; (iii) persistent hyponatremia can be present in the blood; (iv) the patient with benign course without epilepsy and CSF abnormality survived; (v) spontaneously remitting encephalitis can precede SCLC by 1.5 year, which emphasizes that repeated search for cancer is of paramount importance even in cases with spontaneous improvement.
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Affiliation(s)
- Mónika Szőts
- Department of Neurology, Kaposi Mór Teaching Hospital, Kaposvár, Hungary
| | - Morten Blaabjerg
- Department of Neurology, Odense University Hospital, Odense, Denmark.,Department of Clinical Research, University of Southern Denmark, Odense, Denmark
| | - Daniel Kondziella
- Department of Neurology, Rigshospitalet, Copenhagen University, Copenhagen, Denmark
| | - Mihály Herceg
- Department of Neurology, Kaposi Mór Teaching Hospital, Kaposvár, Hungary
| | - Péter Diószeghy
- Department of Neurology, Jósa András Teaching Hospital, Nyíregyháza, Hungary
| | - Gábor Bajzik
- Institute of Diagnostic Imaging and Radiation Oncology, University of Kaposvár, Kaposvár, Hungary
| | - Tímea Berki
- Department of Immunology and Biotechnology, University of Pécs, Pécs, Hungary
| | - Endre Kálmán
- Department of Pathology, University of Pécs, Pécs, Hungary
| | - Ferenc Nagy
- Department of Neurology, Kaposi Mór Teaching Hospital, Kaposvár, Hungary
| | - Zsolt Illés
- Department of Neurology, Odense University Hospital, Odense, Denmark.,Department of Clinical Research, University of Southern Denmark, Odense, Denmark
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16
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17
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Kálmán E. Leitfähigkeit in konzentrierten ternären Systemen. Z PHYS CHEM 2017. [DOI: 10.1515/zpch-1971-24816] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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18
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Cserni G, Kulka J, Francz M, Járay B, Kálmán E, Kovács I, Krenács T, Udvarhelyi N, Vass L. [Pathological diagnosis, work-up and reporting of breast cancer. Recommendations of the 3rd Hungarian Consensus Conference on Breast Cancer]. Magy Onkol 2016; 60:209-228. [PMID: 27579721] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2016] [Accepted: 06/20/2016] [Indexed: 06/06/2023]
Abstract
There have been relevant changes in the diagnosis and treatment of breast cancer to implement the updating of the 2010 recommendations made during the 2nd national consensus conference on the disease. Following a wide interdisciplinary consultation, the present recommendations have been finalized after their public discussion at the 3rd Hungarian Consensus Conference on Breast Cancer. The recommendations cover non-operative and intraoperative diagnostics, the work-up of operative specimens, the determination of prognostic and predictive markers and the content of the cytology and histology reports. Furthermore, it touches some special issues such as the current status of multigene molecular markers, the role of pathologists in clinical trials and prerequisites for their involvement, some relevant points about the future.
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Affiliation(s)
- Gábor Cserni
- Patológiai Osztály, Bács-Kiskun Megyei Önkormányzat Kórháza, Kecskemét, Hungary.
| | - Janina Kulka
- II. Sz. Patológiai Intézet, Semmelweis Egyetem, Budapest, Hungary
| | - Monika Francz
- Patológiai Osztály, Szabolcs-Szatmár-Bereg Megyei Kórházak és Egyetemi Oktatókórház, Jósa András Oktatókórház, Nyíregyháza, Hungary
| | - Balázs Járay
- II. Sz. Patológiai Intézet, Semmelweis Egyetem, Budapest, Hungary
| | - Endre Kálmán
- Patológiai Intézet, Pécsi Tudományegyetem, 2. sz. Diagnosztikus Labor, Pécs, Hungary
| | - Ilona Kovács
- Patológiai Osztály, Kenézy Gyula Kórház, Debrecen, Hungary
| | - Tibor Krenács
- I. Sz. Patológiai és Kísérleti Rákkutató Intézet, Semmelweis Egyetem, Budapest, Hungary
| | | | - László Vass
- Patológiai Osztály, Flór Ferenc Kórház, Kistarcsa, Hungary
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19
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Tóth A, Kátai E, Kálmán E, Bogner P, Schwarcz A, Dóczi T, Sík A, Pál J. In vivo detection of hyperacute neuronal compaction and recovery by MRI following electric trauma in rats. J Magn Reson Imaging 2016; 44:814-22. [PMID: 26969965 DOI: 10.1002/jmri.25216] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2015] [Accepted: 02/16/2016] [Indexed: 11/08/2022] Open
Abstract
PURPOSE To verify the following phenomenon in vivo using quantitative magnetic resonance imaging (MRI). Neuronal compression may occur following brain injuries in the cortex and hippocampus. As well being characterized by previous histological studies in rats, the majority of these neurons undergo hyperacute recovery rather than apoptotic death. MATERIALS AND METHODS Twenty male Wistar rats were assigned into injured or sham-injured groups (n = 10). The injured group underwent an electric trauma model to provoke compacted neuron formation. A T1 map was acquired prior to the injury and 10 T1 maps were acquired consecutively over a period of 2.5 hours after the injury, using a 3.0T scanner. Voxelwise statistical analyses were performed between timepoints. To enable comparison with the histological appearance of the compacted neurons, silver staining was performed on a sham-injured rat and five injured rats, 10, 40, 90, 150, and 300 minutes after the injury. RESULTS A significant (corrected P < 0.05) increase in average T1 from the preinjury (895.24 msec) to the first postinjury timepoint (T1 = 951.37 msec) was followed by a significant (corrected P < 0.05) decrease (return) up to the last postinjury timepoint (T1 = 913.16 msec) in the voxels of the cortex and hippocampus. No significant (corrected P < 0.05) change in T1 was found in the sham-injured group. CONCLUSION The spatial and temporal linkages between the MRI T1 changes and the histological findings suggest that neuronal compaction and recovery is associated with T1 alterations. MRI therefore offers the possibility of in vivo investigations of neuronal compaction and recovery. J. MAGN. RESON. IMAGING 2016;44:814-822.
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Affiliation(s)
- Arnold Tóth
- Department of Neurosurgery, University of Pécs, Pécs, Hungary.
| | - Emese Kátai
- Department of Laboratory Medicine, University of Pécs, Pécs, Hungary
| | - Endre Kálmán
- Department of Pathology, University of Pécs, Pécs, Hungary
| | | | - Attila Schwarcz
- Department of Neurosurgery, University of Pécs, Pécs, Hungary.,MTA-PTE Clinical Neuroscience MR Research Group, Pécs, Hungary
| | - Tamás Dóczi
- Department of Neurosurgery, University of Pécs, Pécs, Hungary.,MTA-PTE Clinical Neuroscience MR Research Group, Pécs, Hungary
| | - Attila Sík
- School of Clinical and Experimental Medicine College of Medical and Dental Sciences University of Birmingham, Birmingham, UK
| | - József Pál
- Department of Neurosurgery, University of Pécs, Pécs, Hungary.,School of Clinical and Experimental Medicine College of Medical and Dental Sciences University of Birmingham, Birmingham, UK
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20
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Mangel L, Bíró K, Battyáni I, Göcze P, Tornóczky T, Kálmán E. A case study on the potential angiogenic effect of human chorionic gonadotropin hormone in rapid progression and spontaneous regression of metastatic renal cell carcinoma during pregnancy and after surgical abortion. BMC Cancer 2015; 15:1013. [PMID: 26704433 PMCID: PMC4691015 DOI: 10.1186/s12885-015-2031-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2015] [Accepted: 12/17/2015] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Treatment possibilities of metastatic renal cell carcinoma (mRCC) have recently changed dramatically prolonging the overall survival of the patients. This kind of development brings new challenges for the care of mRCC. CASE PRESENTATION A 22 year-old female patient with translocation type mRCC, who previously had been treated for nearly 5 years, became pregnant during the treatment break period. Follow-up examinations revealed a dramatic clinical and radiological progression of mRCC in a few weeks therefore the pregnancy was terminated. A few days after surgical abortion, CT examination showed a significant spontaneous regression of the pulmonary metastases, and the volume of the largest manifestation decreased from ca. 30 to 3.5 cm(3) in a week. To understand the possible mechanism of this spectacular regression, estrogen, progesterone and luteinizing hormone receptors (ER, PGR and LHR, respectively) immuno-histochemistry assays were performed on the original surgery samples. Immuno-histochemistry showed negative ER, PGR and positive LHR status suggesting the possible angiogenic effect of human chorionic gonadotropin hormone (hCG) in the background. CONCLUSION We hypothesize that pregnancy may play a causal role in the progression of mRCC via the excess amount of hCG, however, more data are necessary to validate the present notions and the predictive role of LHR overexpression.
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Affiliation(s)
- László Mangel
- Institute of Oncotherapy, University of Pécs, H-7624, Édesanyák útja 17, Pécs, Hungary.
| | - Krisztina Bíró
- Department of Chemotherapy, National Institute of Oncology, Budapest, Hungary.
| | | | - Péter Göcze
- Clinic of Obstetrics and Gynecology, University of Pécs, Pécs, Hungary.
| | | | - Endre Kálmán
- Institute of Pathology, University of Pécs, Pécs, Hungary.
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21
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Horváth KB, Pankovics P, Kálmán E, Kádár Z, Battyáni Z, Lengyel Z, Reuter G. Epidemiological, Clinicopathological and Virological Features of Merkel Cell Carcinomas in Medical Center of University of Pécs, Hungary (2007-2012). Pathol Oncol Res 2015; 22:71-7. [PMID: 26306468 DOI: 10.1007/s12253-015-9974-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/13/2015] [Accepted: 08/19/2015] [Indexed: 10/23/2022]
Abstract
Merkel cell carcinoma (MCC) is a rare, highly aggressive skin tumour. In 2008, a Merkel cell polyomavirus (MC) was identified in MCCs as a potential etiological factor of MCC. The aims of this retrospective study were to investigate the epidemiological, clinicopathological and virological features of MCCs. Between 2007 and 2012, 11 patients had been diagnosed with MCC by histological methods in University of Pécs, Hungary. In eight MCC cases MC was tested by PCR (in primary skin lesions, lymph nodes/cutan metastases, MCC neighboring carcinomas). Clinicopathological characteristics (age, histological pattern, lymphovascular invasion, co-morbidities) of MC-positive and MC-negative cases were compared. MC was detected in three (37.5%) out of eight patients' primary tumour or metastasis. The average age was 73.8 (64.3 in MC-positive group). Except the youngest, 55 year-old patient (the primary tumour appeared on his leg), all tumours were found at the head and neck region. Immunosuppression (steroid therapy, chronic lymphoid leukaemia, chronic obstructive pulmonary disease) and/or old age were characteristic for all cases. Histological pattern was different in MC-positive and in MC-negative groups: MCCs with MC showed more homogeneous histological pattern, lack of lymphovascular invasion and were associated with better prognosis (mortality rate: 33% versus 80%). MCC associated with oncogenic virus is a newly recognized clinical entity. However, MC could not be detected in all histologically proven MCCs. The well-defined selection of patients/disease groups and better characterization of differences between MC-positive and negative cases is an important step towards the recognition of the etiology and pathogenesis of all MCCs.
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Affiliation(s)
- Katalin Barbara Horváth
- Regional Laboratory of Virology, ÁNTSZ Regional Institute of State Public Health Service, Szabadság út 7., Pécs, H-7623, Hungary.,Department of Pathology, University of Pécs, Pécs, Hungary
| | - Péter Pankovics
- Regional Laboratory of Virology, ÁNTSZ Regional Institute of State Public Health Service, Szabadság út 7., Pécs, H-7623, Hungary
| | - Endre Kálmán
- Department of Pathology, University of Pécs, Pécs, Hungary
| | - Zsolt Kádár
- Department of Dermatology, Venereology and Oncodermatology, University of Pécs, Pécs, Hungary
| | - Zita Battyáni
- Department of Dermatology, Venereology and Oncodermatology, University of Pécs, Pécs, Hungary
| | - Zsuzsanna Lengyel
- Department of Dermatology, Venereology and Oncodermatology, University of Pécs, Pécs, Hungary
| | - Gábor Reuter
- Regional Laboratory of Virology, ÁNTSZ Regional Institute of State Public Health Service, Szabadság út 7., Pécs, H-7623, Hungary.
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22
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Kálmán E, Serke I, Pálinkás G, Zeidler MD, Wiesmann FJ, Bertagnolli H, Chieux P. The Molecular Structure and Hydrogen Bond Geometry in Liquid Formamide: Electron, Neutron, and X-Ray Diffraction Studies. ACTA ACUST UNITED AC 2014. [DOI: 10.1515/zna-1983-0221] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Electron, neutron and X-ray diffraction patterns of liquid formamide have been measured at a temperature of 25 °C. Analysis of the diffraction data yields the molecular structure and the average geometry of the hydrogen bond. The molecular parameters obtained from liquid diffraction experiments are in good agreement with those from gas electron diffraction for the free molecule. The mean O…N and O…H hydrogen bond distances are 2.9 Å and 1.9 Å, respectively. Four H-bonds per molecule are found on the average. The deviation of the H-bonds from the linearity is estimated.
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Affiliation(s)
- E. Kálmán
- Central Research Institute for Chemistry of the Hungarian Academy of Sciences, Budapest
| | - I. Serke
- Central Research Institute for Chemistry of the Hungarian Academy of Sciences, Budapest
| | - G. Pálinkás
- Central Research Institute for Chemistry of the Hungarian Academy of Sciences, Budapest
| | - M. D. Zeidler
- Institut für Physikalische Chemie der Rheinisch-Westfälischen Technischen Hochschule, Aachen
| | - F. J. Wiesmann
- Institut für Physikalische Chemie der Rheinisch-Westfälischen Technischen Hochschule, Aachen
| | - H. Bertagnolli
- Institut für Physikalische Chemie der Universität, Würzburg
| | - P. Chieux
- Institut Max von Laue-Paul Langevin, Grenoble
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23
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Kálmán E, Serke I, Pálinkás G, Johansson G, Kabisch G, Maeda M, Ohtaki H. Complex Formation in an Aqueous ZnBr2 Solution Based on Electron Diffraction, X-ray Scattering and Raman Spectra. ACTA ACUST UNITED AC 2014. [DOI: 10.1515/zna-1983-0220] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Electron and X-ray scattering as well as Raman spectra of as aqueous solution of ZnBr2 with a Br-/Zn++ ratio of 3:1 have been studied. The existence of hexaaquo, di-, tri-and tetra-bromo complexes in solution has been established by all three methods. Octahedral hexaaquo and tetrahedral Zn(H2O)4-n Brn complexes with n=2, 3, 4 are consistent with electron and X-ray structure functions. The inner sphere type complexes have interatomic distances of 2.2 Å for Zn++ -H2O, 2.4 Å for Zn++ -Br-, 3.93 Å for Br--Br- and 2.91 Å for W-W interactions with average numbers of contacts 2.4, 2.22, 1.33 and 1.1 respectively.
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Affiliation(s)
- E. Kálmán
- Central Research Institute for Chemistry, Budapest
| | - I. Serke
- Central Research Institute for Chemistry, Budapest
| | - G. Pálinkás
- Central Research Institute for Chemistry, Budapest
| | | | - G. Kabisch
- Arbeitsstelle der Sächsischen Akademie, Freiberg
| | - M. Maeda
- Tokyo Institute of Technology, Japan
| | - H. Ohtaki
- Tokyo Institute of Technology, Japan
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Abstract
The structure of a concentrated solution of MgCl2 in methanol has been studied by X-ray diffraction. The parameters for the ion-solvent interactions are in good agreement with those found in aqueous solutions. Both for Mg2+ and Cl- the solvate shells are composed of 6 methanol molecules. An average octahedral arrangement of OH groups in the solvate shells of magnesium is probable. Octahedral symmetrical positions for CH3 groups proved to be unlikely
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Affiliation(s)
- T. Radnai
- Central Research Institute for Chemistry of Hungarian Academy of Sciences, Budapest
| | - E. Kálmán
- Central Research Institute for Chemistry of Hungarian Academy of Sciences, Budapest
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25
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László T, Lacza Á, Tóth D, Molnár TF, Kálmán E. Pulmonary enteric adenocarcinoma indistinguishable morphologically and immunohistologically from metastatic colorectal carcinoma. Histopathology 2014; 65:283-7. [DOI: 10.1111/his.12403] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Terézia László
- Department of Pathology; Medical Faculty of Pécs University; Pécs Hungary
| | - Ágnes Lacza
- Department of Pathology; Medical Faculty of Pécs University; Pécs Hungary
| | - Dénes Tóth
- Department of Forensic Medicine; Medical Faculty of Pécs University; Pécs Hungary
| | - Tamás F Molnár
- Department of Thoracic Surgery; County Hospital Győr; Petz Aladár Hospital; Győr Hungary
- Department of Operational Medicine; Medical Faculty of Pécs University; Pécs Hungary
| | - Endre Kálmán
- Department of Pathology; Medical Faculty of Pécs University; Pécs Hungary
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26
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Horváth T, Kálmán E, Kutsán G, Rauscher Á. Corrosion of mild steel in hydrochloric acid solutions containing organophosphonic acids. ACTA ACUST UNITED AC 2013. [DOI: 10.1179/000705994798267683] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
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27
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Kajtár B, Tornóczky T, Kálmán E, Kuzsner J, Hogendoorn PCW, Szuhai K. CD99-positive undifferentiated round cell sarcoma diagnosed on fine needle aspiration cytology, later found to harbour aCIC-DUX4translocation: a recently described entity. Cytopathology 2013; 25:129-32. [DOI: 10.1111/cyt.12079] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/04/2013] [Indexed: 11/26/2022]
Affiliation(s)
- B. Kajtár
- Department of Pathology; University of Pécs; Hungary
| | - T. Tornóczky
- Department of Pathology; University of Pécs; Hungary
| | - E. Kálmán
- Department of Pathology; University of Pécs; Hungary
| | - J. Kuzsner
- Department of Orthopaedics; University of Pécs; Hungary
| | - P. C. W. Hogendoorn
- Department of Pathology; Leiden University Medical Center; Leiden The Netherlands
| | - K. Szuhai
- Department of Molecular Cell Biology; Leiden University Medical Center; Leiden The Netherlands
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28
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Horváth KB, Pankovics P, Battyáni Z, Kálmán E, Reuter G. [A probable etiological role of Merkel cell polyomavirus in the development of Merkel cell carcinoma]. Orv Hetil 2013; 154:102-12. [PMID: 23315225 DOI: 10.1556/oh.2013.29525] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Approximately 20% of the tumours in humans are associated with contagious viral agents. Merkel cell carcinoma is a rare and highly aggressive tumour which may originate from the epidermal stratum basale, although the origin is still controversial. This tumour is most commonly found in elderly and immunocompromised patients in sun exposed areas, especially in the head and neck regions. Merkel cell carcinoma often causes a diagnostic challenge with a dramatically increasing incidence. In 2008, a DNA tumour virus, a polyomavirus (Merkel cell polyomavirus) was detected in Merkel cell carcinomas, and this finding helped to understand the etiological background of the disease. The infectious - probably viral - etiology resulted in a paradigm shift in pathogenesis and, hopefully, in therapy as well. This review summarizes the current knowledge related to Merkel cell carcinoma and the first oncogenic human polyomavirus, the Merkel cell polyomavirus, to promote the clinical adaptation of the information.
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Affiliation(s)
- Katalin Barbara Horváth
- Állami Népegészségügyi és Tisztiorvosi Szolgálat Dél-dunántúli Regionális Intézete Regionális Virológiai Laboratórium, Gastroenteralis Vírusok Nemzeti Referencialaboratóriuma Pécs Szabadság u, Általáno Orvostudományi Kar
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29
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Zapf I, Fekecs T, Moezzi M, Tizedes G, Pavlovics G, Kálmán E, Horváth PO, Ferencz A. [Differential scanning calorimetry of blood plasma in breast cancer patients]. Magy Onkol 2012; 56:274-279. [PMID: 23236598] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2012] [Accepted: 09/10/2012] [Indexed: 06/01/2023]
Abstract
Breast cancer is the commonest cause of cancer death in women worldwide. Its incidence has been increasing for many years in economically developed countries. Differential scanning calorimetry (DSC) is a thermoanalytical technique which monitors small heat changes between sample and reference materials. This examination is a validly efficient method for the demonstration of structural changes not only in the physical sciences, but in numerous human oncological diseases. The goal of this study was to measure DSC thermogram of blood plasma in breast cancer patients with different stages. Nineteen women with different tumor diameter (0.5-7.5 mm) and with or without regional lymph node metastases were involved in the study. Preoperatively peripheral blood samples were collected from the patients and from healthy controls, and plasma components were analysed by SETARAM micro DSC-II calorimeter. The diameter of the tumor tissue and the number of metastatic lymph nodes were evaluated on the basis of postoperative histological results. In the current study we found difference in changes of the thermal parameters (transition temperature, calorimetric enthalpy) of breast cancer patients' plasma components. Moreover, a tendency has been found for association of these results with tumor size and with the degree of regional lymph node involvement. Preliminary study of the clinical utility of DSC technology arises, even though there is no data in the literature. In cases of breast cancer the blood plasma may be suitable for DSC analysis for diagnosis or staging as well. In order to clarify the relationships we are planning further studies.
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Affiliation(s)
- István Zapf
- Sebészeti Klinika, Pécsi Tudományegyetem, Pécs, Hungary.
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30
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Zapf I, Tizedes G, Pavlovics G, Kovács G, Kálmán E, Szalai G, Kövér E, Farkas R, Horváth OP. [Primary systemic therapy in breast cancer patients (2007-2010)]. Magy Seb 2011; 64:223-8. [PMID: 21997525 DOI: 10.1556/maseb.64.2011.5.1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
INTRODUCTION/AIM The importance of preoperative neoadjuvant (NA) systemic treatment in operable breast cancer has significantly increased in the last few years. The aim of our retrospective study was to determine the effect of NA therapy in breast cancer patients treated in our unit and analyze radiological and pathological response rates in the context of surgical treatment. MATERIALS AND METHODS One hundred and fourteen cases of breast cancer with NA therapy were analyzed and clinical data were collected from March 2007 to December 2010. Twenty-two patients received NA treatment for inoperable tumours. As far as operable cancers (92 patients), the indications for NA treatment were high tumour grade, presence of axillary metastasis and relatively young age. 5-Fluorouracil-Epirubicin-Cyclophosphamid or Taxotere-Epirubicin regimens were administered in 6 cycles followed by radiological evaluation and surgery. Herein, we compared the preoperative staging with the pathological results after surgery. RESULTS NA therapy resulted in complete regression in 17% of patients, significant regression in 21%, while moderate regression was achieved in 43% of patients. No regression was detected in 19%. The decrease in T stage was not followed by decrease in N stage in significant number of cases. Moreover, in some cases NA therapy caused complete radiological regression, while histologically it still remained positive. In certain cases, breast conserving surgery was feasible due to down-staging caused by NA therapy. CONCLUSION NA therapy was effective primarily in decreasing tumour size; however, it was less effective on axillary lymph node metastases. Due to the presence of the residual DCIS component, the volume of resection could not be decreased as much as down-staging of the invasive cancer would have permitted.
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Affiliation(s)
- István Zapf
- Pécsi Tudományegyetem, Klinikai Központ Sebészeti Klinika 7624 Pécs Ifjúság út 13.
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31
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Cserni G, Francz M, Járay B, Kálmán E, Kovács I, Kulka J, Orosz Z, Udvarhelyi N, Vass L. [Pathologic diagnosis and histopathology record of breast cancer]. Magy Onkol 2011; 54:217-26. [PMID: 20870599 DOI: 10.1556/monkol.54.2010.3.3] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Affiliation(s)
- Gábor Cserni
- Bács-Kiskun Megyei Onkormányzat Kórháza, Kecskemét
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32
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Verzár Z, Kövér E, Dóczi T, Kálmán E, Koppán M, Bódis J. Successful treatment of FIGO stage IV gestational choriocarcinoma occurring 2 months after delivery. Eur J Obstet Gynecol Reprod Biol 2008; 140:275-6. [PMID: 17521800 DOI: 10.1016/j.ejogrb.2007.03.026] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2006] [Revised: 01/13/2007] [Accepted: 03/03/2007] [Indexed: 10/23/2022]
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33
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Kuzmann E, Stichleutner S, Homonnay Z, Vértes A, Paszternák A, Nagy F, Felhősi I, Pető G, Telegdi J, Kálmán E. Amorphous iron formation due to low energy heavy ion implantation in evaporated 57Fe thin films. J Radioanal Nucl Chem 2008. [DOI: 10.1007/s10967-007-7117-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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34
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35
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Gergely A, Telegdi J, Mészáros E, Pászti Z, Tárkanyi G, Kármán FH, Kálmán E. Modification of multi-walled carbon nanotubes by Diels-Alder and Sandmeyer reactions. J Nanosci Nanotechnol 2007; 7:2795-807. [PMID: 17685300 DOI: 10.1166/jnn.2007.625] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
Random (L) and aligned (A) multi-walled carbon nanotubes (MWNTs) were modified by Diels-Alder (DA) [4+2] cycloaddition, Sandmeyer (SM) reaction and by catalytic oxidation (OX). The properties of modified carbon nanotubes were studied by dispersability tests, elemental analysis, thermogravimetry/mass spectrometry, X-ray photoelectron spectroscopy, and NMR spectroscopy. The cycloaddition reaction could only be successfully performed with the L-MWNTs in molten and in solution state by using an aluminum chloride homogeneous catalyst. The efficiency and thermal stability of the solution phase cycloaddition were much higher than in the case of modification in the molten phase. The functionalization of both types of MWNTs by Sandmeyer reaction was carried out by copper(I) and iron(ll) ions that helped in the radical decomposition of diazonium salts. Successful functionalization of nanotubes is achieved by a long decomposition time of the thermally activated diazonium salts. To the contrary, in the case of radical decomposition of diazonium salts, the time is not a decisive parameter. The dispersability tests have proved the changes in the physical features of modified carbon nanotubes depending on the hydrophobic and hydrophilic character of the solvents. The presence of the modifying groups and their fragments from the functionalized MWNTs has been demonstrated by thermogravimetry/mass spectrometry (TG/MS). Relatively high concentration of sulfur atoms was detected by X-ray photoelectron spectroscopy in nanotubes modified by sulfur substituent groups. In the case of catalytic oxidation, the X-ray photoelectron spectroscopic signal of oxygen bound to nanotubes showed considerable change as compared to pristine nanotubes. Due to the high thermal stability of modified multi-walled carbon nanotubes, the functionalized derivatives are applicable in several industrial fields.
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Affiliation(s)
- A Gergely
- Institute of Chemistry, Chemical Research Center of the Hungarian Academy of Sciences, Budapest, Hungary
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Ottóffy G, Vojcek Á, Cholnoky E, Kálmán E, Szalai G, Kajtár P. P029 First report about a toxic sialadenosis of the parotis during induction and re-intensification of acute lymphoblastic leukemia. Blood Rev 2007. [DOI: 10.1016/s0268-960x(07)70103-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Lorincz BB, Kálmán E, Gerlinger I. KTP-532 laser-assisted microvascular anastomosis (experimental animal study). Eur Arch Otorhinolaryngol 2007; 264:823-8. [PMID: 17453225 DOI: 10.1007/s00405-007-0317-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2006] [Accepted: 04/03/2007] [Indexed: 11/30/2022]
Abstract
Former animal studies on laser-assisted microvascular anastomosis performed with CO(2)-, argon-, diode-, Holmium:YAG- and Nd:YAG-lasers had already proven the stability of the anastomotic sites. Tissue damage remained minimal along the anastomosis, while duration of the surgeries decreased significantly compared to that of traditionally implemented microvascular sutures. In addition to this, foreign body reaction next to end-to-end anastomosis appeared to be minimal due to fewer traditional stitches. This animal study was designed in order to investigate the durability and the histological properties of microvascular anastomosis assisted by KTP-532 laser. Twenty-one Wistar albino rats were used: in nine animals the KTP-laser-assisted microvascular anastomosis was carried out on the femoral artery. Those nine animals were divided into three groups and each of them consisted of three rats. The animals in these three groups were sacrificed 4 h, 1 and 4 weeks following the surgery, respectively. In three additional animals laser-assisted microvascular anastomosis was done on the abdominal aorta. Conventional microvascular sutures were carried out on femoral arteries of further nine animals in the control group. The healing process of the femoral arteries is documented with figures of histological slides both in the laser-treated and in the conventionally operated group of rats. The KTP-laser-assisted microvascular anastomosis failed on the abdominal aorta, as strong bleedings occurred after the traditional sutures had been taken out. However, the coagulative effect of the KTP-laser could still be used. The authors share the opinion that the success of the laser-assisted end-to-end microvascular anastomosis does not depend on the wavelength of the applied laser, but can be affected by both the calibre of the vessel and the intraluminal pressure.
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Affiliation(s)
- Balázs B Lorincz
- Department of Otolaryngology and Head and Neck Surgery, Medical School, University of Pécs, Munkácsy M. utca 2, 7621, Pécs, Hungary.
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Szots M, Bors L, Kálmán E, Szapáry L, Illés Z. [Intravascular lymphomatosis: diagnostic problems of a rare disease]. Orv Hetil 2007; 148:749-52. [PMID: 17437952 DOI: 10.1556/oh.2007.27974] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Intravascular lymphomatosis is a rare systemic disease characterized by proliferation of malignant B or rarely T lymphocytes. Skin and the brain are predominantly affected. We describe a patient presenting with focal neurological signs and progressive dementia. Cerebral neuroimaging findings were nonspecific. Postmortem examination revealed intravascular proliferation of atypical mononuclear cells in the lumens of small vessels in all organs. The authors conclude that diagnosis requires a high index of suspicion and pathological examination of the affected organs, but is rarely made ante mortem.
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Affiliation(s)
- Mónika Szots
- Pécsi Tudományegyetem, Altalános Orvostudományi Kar, Neurológiai Klinika, Pécs.
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Süle N, Tészás A, Kálmán E, Szigeti R, Miseta A, Kellermayer R. Lithium suppresses epidermal SERCA2 and PMR1 levels in the rat. Pathol Oncol Res 2006; 12:234-6. [PMID: 17189987 DOI: 10.1007/bf02893419] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/19/2006] [Accepted: 10/21/2006] [Indexed: 10/21/2022]
Abstract
Autosomal dominant mutations in the genes encoding the calcium ATPases SERCA2 and PMRI/SPCA1 cause the genodermatoses Darier disease (DD) and Hailey-Hailey disease (HHD), respectively. Recent observations indicated that the level of the pathogenic proteins greatly decreases in the affected areas of the epidermis in these disorders. Here we addressed how lithium, a recognized exacerbating factor in Darier disease, affects the epidermal expression of SERCA2 and PMR1/SPCA1 in the rat as a model. Standard histologic and immunohistochemical methods were utilized in 3 lithium-treated and 3 control animals. A significant suppression of epidermal SERCA2 and PMR1 levels were observed as a result of lithium therapy in addition to marked qualitative and quantitative changes in the stratum corneum and the granular layer of the epidermis in the treated animals. Our findings suggest that exacerbating factors in calcium ATPase disorders of the skin suppress epidermal SERCA2 and PMR1 levels, further decreasing the already haploinsufficient protein expression to a potentially critical level in Darier disease and Hailey-Hailey disease, respectively. Lithium therapy should specifically be avoided not only in Darier disease, but Hailey-Hailey disease as well.
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Affiliation(s)
- Norbert Süle
- Department of Pathology, University of Pécs, Pécs, Hungary
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Cserni G, Orosz Z, Kulka J, Sápi Z, Kálmán E, Bori R. Divergences in diagnosing nodular breast lesions of noncarcinomatous nature. Pathol Oncol Res 2006; 12:216-21. [PMID: 17189984 DOI: 10.1007/bf02893415] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/23/2006] [Accepted: 10/21/2006] [Indexed: 10/21/2022]
Abstract
Nodular breast lesions of noncarcinomatous origin are often of fibroepithelial origin. They may cause classification problems when they are hypocellular or hypercellular; the latter setting may also raise the differential diagnosis of phyllodes tumors. Thirty equivocal nodular breast lesions were collected and one hematoxylin and eosin slide from each was assessed by six pathologists with special interest in breast pathology. The overall reproducibility of classifying these lesions into categories of fibroadenoma, phyllodes tumor or anything else was moderate (kappa value: 0.48). The lack of a uniform nomenclature was not felt disturbing for hypocellular lesions, but the discordant diagnosis of tumors resembling or representing phyllodes tumors was acknowledged to require intervention, such as more obvious implication of guidelines and quality assurance programs aiming at assessing diagnoses and prognostic parameters.
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Affiliation(s)
- Gábor Cserni
- Department of Pathology, Bács-Kiskun County Teaching Hospital, Kecskemét, H-6000, Hungary.
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Affiliation(s)
- E. Kálmán
- a Central Research Institute for Chemistry of the Hungarian Academy of Sciences , Hungary , 1431 , Budapest , 8, Pf. 156
| | - G. Pálinkás
- a Central Research Institute for Chemistry of the Hungarian Academy of Sciences , Hungary , 1431 , Budapest , 8, Pf. 156
| | - P. Kovács
- a Central Research Institute for Chemistry of the Hungarian Academy of Sciences , Hungary , 1431 , Budapest , 8, Pf. 156
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Affiliation(s)
- G. Pálinkás
- a Central Research Institute for Chemistry of the Hungarian Academy of Sciences , Hungary , 1088 , Budapest , Puskin u. 11–13
| | - E. Kálmán
- a Central Research Institute for Chemistry of the Hungarian Academy of Sciences , Hungary , 1088 , Budapest , Puskin u. 11–13
| | - P. Kovács
- a Central Research Institute for Chemistry of the Hungarian Academy of Sciences , Hungary , 1088 , Budapest , Puskin u. 11–13
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Schreiber A, Schultze J, Lohrengel M, Kármán F, Kálmán E. Grain dependent electrochemical investigations on pure iron in acetate buffer pH 6.0. Electrochim Acta 2006. [DOI: 10.1016/j.electacta.2005.07.052] [Citation(s) in RCA: 70] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Lachmann M, Gelbmann D, Kálmán E, Polgár B, Buschle M, Von Gabain A, Szekeres-Barthó J, Nagy E. PIBF (progesterone induced blocking factor) is overexpressed in highly proliferating cells and associated with the centrosome. Int J Cancer 2004; 112:51-60. [PMID: 15305375 DOI: 10.1002/ijc.20326] [Citation(s) in RCA: 50] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
PIBF was previously identified as a 34 kDa immunomodulatory molecule secreted by pregnancy lymphocytes and is thought to play a crucial role in preventing rejection of the embryo by the maternal immune response. Recent data suggested that PIBF protein was also expressed by the progesterone receptor (PR) positive MCF-7 breast tumor cell line. Therefore our study was designed to analyze the expression of PIBF in malignant cell lines and primary tumors both at the mRNA and protein levels. RNA expression analyses of several human cell lines with different tissue origin and paired human tumor/normal tissues, as well as of several PR+ and PR- breast tumors revealed that PIBF mRNA was overexpressed in highly proliferating cells independent of the presence of PR. In addition to the full-length PIBF mRNA encoding for a 90 kDa protein, several alternatively spliced species were detected, all resulting from perfect exon skipping. The most frequently identified splice variant is predicted to encode for an approximately 35 kDa protein. Immunofluorescence microscopy revealed a centrosomal localization for the full-length PIBF, while the 35 kDa form showed a diffuse cytoplasmic staining. These data, together with the identification of the PIBF gene in the chromosomal region associated with breast cancer susceptibility, reveal a strong parallel with known tumor suppressor proteins, such as BRCA1 and p53 having the same centrosomal localization. Given the notion that a number of proteins shown to be involved in tumorigenesis are associated with the centrosome and disturbed centrosome function causes unequal segregation of chromosomes, studies to evaluate whether or not PIBF that is highly expressed in tumors is directly involved in tumorigenesis are thus warranted.
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Tornóczky T, Kálmán E, Kajtár PG, Nyári T, Pearson ADJ, Tweddle DA, Board J, Shimada H. Large cell neuroblastoma: a distinct phenotype of neuroblastoma with aggressive clinical behavior. Cancer 2004; 100:390-7. [PMID: 14716776 DOI: 10.1002/cncr.20005] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
BACKGROUND Among cases of undifferentiated and poorly differentiated tumors in the neuroblastoma (Schwannian stroma-poor) category, the authors histologically identified a group of rare tumors, known as large cell neuroblastomas (LCNs), that are composed of large cells with sharply outlined nuclear membranes and 1-4 prominent nucleoli. METHODS Histologic and immunohistochemical features of LCN were characterized. Morphologic characteristics, clinical features, and MYCN status were compared between LCNs and conventional neuroblastomas documented in the files of two European centers (the Sir James Spence Institute of Child Health, Royal Victoria Infirmary, University of Newcastle, Newcastle upon Tyne, United Kingdom, and the Medical and Health Sciences Center, University of Pécs, Pécs, Hungary). RESULTS Of 92 peripheral neuroblastic tumors (pNTs; including neuroblastoma [n = 81]; ganglioneuroblastoma, intermixed [n = 6]; and ganglioneuroblastoma, nodular [n = 5]), 7 (7.6%) qualified as LCN. All 7 LCNs were classified as having unfavorable histology (UH) according to the International Neuroblastoma Pathology Classification. The LCNs were composed of monomorphous undifferentiated neuroblasts and shared certain histologic features, such as a high incidence of high mitosis-karyorrhexis index and a low incidence of calcification, with other neuroblastomas in the conventional UH (c-UH) group. These features were significantly different from those of neuroblastomas in the conventional favorable histology (c-FH) group. On immunohistochemical analysis, LCN tumor cells were positive for neuron-specific enolase (5 of 5 cases), protein gene product 9.5 (5 of 5 cases), synaptophysin (5 of 5 cases), tyrosine hydroxylase (focally in 3 of 3 cases), and NB84 (3 of 5 cases) and negative for CD99. Patients with LCN and patients with c-UH disease had similar clinical features (diagnosis at age > 1 year, often with distant metastasis). The clinical features of these patients also were significantly different from those of patients with c-FH disease. Further analysis demonstrated that the LCN group was significantly different from both the c-UH and c-FH groups with respect to MYCN status (MYCN amplification, 4 of 5 vs. 3 of 17 vs. 8 of 17, respectively; P = 0.023) and survival rate (4-year expected survival, 0% vs. 71% vs. 17%, respectively; P < 0.01). CONCLUSIONS Because of its unique clinicopathologic features, the authors propose that LCN be recognized as a distinct entity within the undifferentiated and poorly differentiated subtypes of the neuroblastoma category.
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Affiliation(s)
- Tamás Tornóczky
- Department of Pathology, Faculty of Medicine, Medical and Health Sciences Center, University of Pécs, Szigeti út 12, H-7643 Pécs, Hungary.
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Horányi G, Kálmán E. Anion specific adsorption on Fe2O3 and AlOOH nanoparticles in aqueous solutions: comparison with hematite and γ-Al2O3. J Colloid Interface Sci 2004; 269:315-9. [PMID: 14654390 DOI: 10.1016/s0021-9797(03)00750-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
The specific adsorption of radiolabeled sulfate and phosphate ions from perchlorate supporting electrolyte onto nano-AlOOH and nano-Fe(2)O(3) powder has been investigated. The pH dependence of the adsorption of anions onto nanopowders was compared with that of the same ions onto gamma-Al(2)O(3) and hematite. It was demonstrated that the character of the pH dependence of the adsorption is very similar in the comparable cases. It was found, however, that in contrast to the behavior of gamma-Al(2)O(3), nano-AlOOH dissolves at a significant rate at low pH values (pH<2). Thus the study of the pH dependence of the anion adsorption encounters difficulties at these pH values. Disregarding this fact, it can be concluded that no special effects can be observed in the anion adsorption onto the nano-oxides studied.
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Affiliation(s)
- G Horányi
- Research Laboratory of Materials and Environmental Chemistry, Chemical Research Center, Hungarian Academy of Sciences, 1525, PO Box 17, Budapest, Hungary.
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Nagy NM, Kónya J, Beszeda M, Beszeda I, Kálmán E, Keresztes Z, Papp K, Cserny I. Physical and chemical formations of lead contaminants in clay and sediment. J Colloid Interface Sci 2003; 263:13-22. [PMID: 12804879 DOI: 10.1016/s0021-9797(03)00284-4] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
A possible sink for divalent lead in the environment is clays such as montmorillonite that have cation exchange capacities. To assess the reaction, a calcium-montmorillonite was mixed with lead perchlorate solutions of varying concentrations and at various pH's. The recovered solids were studied by a variety of techniques (X-ray photoelectron and infrared spectroscopy, scanning electron microscopy, and atomic force microscopy) to determine what, if any, alterations occurred. The ion exchange of lead for calcium reduced the hydrated water in the clay, and evidence for proton-lead ion exchange at the edges of the sheets was observed. Evidence for a second, unexpected, reaction was also observed. Small spots (0.2 to 1 microm) of lead enrichment were observed on the surface of clay particles. They were also observed on clays recovered from the sediment of a Hungarian lake. The results show that lead ions are adsorbed onto montmorillonite by two processes: cation exchange and nano- and microparticle production. Cation exchange leads to the even distribution of the ions, while the production of spots causes the enrichment of lead ions. The production of these particles is not expected from the thermodynamic properties of the solution and cannot be observed in the absence of clay.
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Affiliation(s)
- N M Nagy
- Isotope Laboratory, Faculty of Natural Sciences, University of Debrecen, P.O.B. 8, H-4010 Debrecen, Hungary.
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Pradier CM, Kármán F, Telegdi J, Kálmán E, Marcus P. Adsorption of Bovine Serum Albumin on Chromium and Molybdenum Surfaces Investigated by Fourier-Transform Infrared Reflection−Absorption Spectroscopy (FT-IRRAS) and X-ray Photoelectron Spectroscopy. J Phys Chem B 2003. [DOI: 10.1021/jp026365i] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- C. M. Pradier
- Laboratoire de Physico-Chimie des Surfaces, CNRS (UMR 7045), Ecole Nationale Supérieure de Chimie de Paris, 11 rue P. et M. Curie, 75005 Paris, France, and Chemical Research Center, Department of Surface Chemistry and Corrosion Research, Hungarian Academy of Sciences, H-1025 Budapest, Hungary
| | - F. Kármán
- Laboratoire de Physico-Chimie des Surfaces, CNRS (UMR 7045), Ecole Nationale Supérieure de Chimie de Paris, 11 rue P. et M. Curie, 75005 Paris, France, and Chemical Research Center, Department of Surface Chemistry and Corrosion Research, Hungarian Academy of Sciences, H-1025 Budapest, Hungary
| | - J. Telegdi
- Laboratoire de Physico-Chimie des Surfaces, CNRS (UMR 7045), Ecole Nationale Supérieure de Chimie de Paris, 11 rue P. et M. Curie, 75005 Paris, France, and Chemical Research Center, Department of Surface Chemistry and Corrosion Research, Hungarian Academy of Sciences, H-1025 Budapest, Hungary
| | - E. Kálmán
- Laboratoire de Physico-Chimie des Surfaces, CNRS (UMR 7045), Ecole Nationale Supérieure de Chimie de Paris, 11 rue P. et M. Curie, 75005 Paris, France, and Chemical Research Center, Department of Surface Chemistry and Corrosion Research, Hungarian Academy of Sciences, H-1025 Budapest, Hungary
| | - P. Marcus
- Laboratoire de Physico-Chimie des Surfaces, CNRS (UMR 7045), Ecole Nationale Supérieure de Chimie de Paris, 11 rue P. et M. Curie, 75005 Paris, France, and Chemical Research Center, Department of Surface Chemistry and Corrosion Research, Hungarian Academy of Sciences, H-1025 Budapest, Hungary
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Horváth T, Kálmán E. RUSS J ELECTROCHEM+ 2002; 38:225-229. [DOI: 10.1023/a:1014779903507] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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