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Dive into the research topics where Réka Brubel is active.

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Featured researches published by Réka Brubel.


Journal of Maternal-fetal & Neonatal Medicine | 2014

Placental gene expression patterns of endoglin (CD105) in intrauterine growth restriction.

Imre Szentpéteri; Attila Rab; László Kornya; Péter Kovács; Réka Brubel; József Gábor Joó

Abstract Objective: In this study, we describe placental gene expression patterns of endoglin in pregnancies with intrauterine growth restriction (IUGR) compared to normal pregnancies. Methods: Placental samples were obtained from 101 pregnancies with IUGR using 140 normal pregnancy cases as control. Gene expression patterns and protein levels of the endoglin were compared between the two groups. For the gene expression analysis real-time PCR was applied, while for the estimation of placental protein level we performed Western analysis. Results: The placental endoglin gene was significantly overexpressed in the IUGR group versus the control group (Ln2α: 1.69). The placental endoglin protein level proved to be significantly higher in case of IUGR (endoglin/β-actin ratio: 13.8 ± 2.3) versus the control cases (5.3 ± 1.1). The placental gene expression as well as the protein levels of endoglin showed no significant difference between female and male newborns. Concerning the placental gene expression and protein level, no significant difference was justified between the more (0–5 percentile) and less (5–10 percentile) severe cases of IUGR. Conclusion: Increased placental gene expression of endoglin may result in vascular dysfunction leading to chronic fetal hypoxia, which may induce VEGF-A to stimulate angiogenesis. This can be explained as feed back response to restore fetal placental circulation.


European Journal of Obstetrics & Gynecology and Reproductive Biology | 2013

The role of the alcohol dehydrogenase-1 (ADH1) gene in the pathomechanism of uterine leiomyoma

Éva Csatlós; János Rigó; Marcella Laky; Réka Brubel; Gábor József Joó

OBJECTIVE To describe alterations of gene expression patterns of the alcohol dehydrogenase-1 (ADH1) gene in human leiomyoma tissue. We correlated changes in ADH1 gene activity with several clinical and demographic variables. STUDY DESIGN We compared gene expression patterns of ADH1 in leiomyoma tissue samples obtained from 101 hysterectomy cases to 110 cases of hysterectomy performed for non-oncological indications. Gene expression was determined by standard PCR technique. Clinical and epidemiological data were extracted from the computerized database of the 1st Department of Obstetrics and Gynecology of Semmelweis University and from patient questionnaires. RESULTS Median age in the leiomyoma group was significantly lower than in the control group (47.5 ± 12.1 vs. 54.7 ± 10.2 years). The incidence of uterine leiomyoma was highest (48%) in the 41-50 year age group. In the obstetric history, cumulative gestational age in the leiomyoma group was significantly lower (105.1 ± 8.2 weeks) than in the control group (127.2 ± 9.1 weeks) and cumulative lactation length was also significantly shorter (2.4 ± 1.2 months vs. 5.1 ± 2.2 months). Surgical treatment of the fibroid was myomectomy in 39.6% of the cases and hysterectomy in 60.4%. The ADH1 gene was significantly underexpressed in the leiomyoma group compared to the control group. There was no significant association between ADH1 gene expression and family history. Within the leiomyoma group, there was no significant difference in ADH1 gene expression between subgroups of cases with different number of fibroid tumors found in the hysterectomy sample, but individual tumor number did correlate with the degree of underexpression of the ADH1 gene. There was no significant association between ADH1 gene expression and cumulative history of lactation. CONCLUSIONS Underexpression of the ADH1 gene, which influences the transformation of the extracellular matrix, plays a probable role in the etiology of uterine fibroid. Although significant differences in ADH1 gene activity were not seen, a negative correlation between tumor number and degree of ADH1 underexpression was found. Neither family history nor cumulative lactation length was a significant predictor of uterine leiomyoma.


Fertility and Sterility | 2017

Serum galectin-9 as a noninvasive biomarker for the detection of endometriosis and pelvic pain or infertility-related gynecologic disorders

Réka Brubel; Attila Bokor; Ákos Pohl; Gabriella Schilli; Laszlo Szereday; Reka Bacher-Szamuel; János Rigó; Beata Polgar

OBJECTIVE To investigate the usefulness of soluble galectin-9 (Gal-9) in the noninvasive laboratory diagnosis of endometriosis and various gynecologic disorders. DESIGN Prospective case-control study. SETTING University medical centers. PATIENT(S) A total of 135 women of reproductive age were involved in the study, 77 endometriosis patients, 28 gynecologic controls, and 30 healthy women. INTERVENTION(S) Diagnostic laparoscopy and collection of tissue biopsies, peritoneal cells, and native peripheral blood from different case groups of gynecology patients and healthy women. MAIN OUTCOME MEASURE(S) The expression of mRNA and serum concentration of Gal-9. RESULT(S) Semiquantitative reverse transcription-polymerase chain reaction analysis and serum soluble Gal-9 ELISA were performed on three different cohorts of patients: those with endometriosis, those with benign gynecologic disorders, and healthy controls. Differences in the Gal-9 concentrations between the investigated groups and the stability of Gal-9 in the serum and diagnostic characteristics of Gal-9 ELISA were determined by statistical evaluation and receiver operating characteristic (ROC) curve analysis. Significantly elevated Gal-9 levels were found in both minimal-mild (I-II) and moderate-severe (III-IV) stages of endometriosis in comparison with healthy controls. At a cutoff of 132 pg/mL, ROC analysis revealed an excellent diagnostic value of Gal-9 ELISA in endometriosis (area under the curve = 0.973) with a sensitivity of 94% and specificity of 93.75%, indicating better diagnostic potential than that of other endometriosis biomarkers. Furthermore, various pelvic pain or infertility-associated benign gynecologic conditions were also associated with increased serum Gal-9 levels. CONCLUSION(S) Our results suggest that Gal-9 could be a promising noninvasive biomarker of endometriosis and a predictor of various infertility or pelvic pain-related gynecologic disorders.


Orvosi Hetilap | 2014

Experience with multidisciplinary laparoscopic surgery in patients with deep infiltrating colorectal endometriosis

Attila Bokor; Réka Brubel; Péter Lukovich; János Rigó

INTRODUCTION Deep infiltrating endometriosis is a particular form of endometriosis that penetrates the peritoneal surface or it reaches the subserosal neurovascular plexus. AIM The aim of the authors was to analyze the results of segmental colorectal resections performed for deep infiltrating endometriosis. METHOD Between 2009 and 2012, 50 patients underwent segmental rectum or/and sigmoid resection for endometriosis. RESULTS 21 patients had ultralow rectal resection and 29 patients had low colorectal anastomosis or anterior resection. Concomitant intervention in other organs was required in all cases, including gynecologic procedures (n = 50), additional gynecologic (n = 47), vesical (n = 9) and ureteral (n = 18) resections. The mean number of endometriosis lesions was 2.4±1.8 per patient. In all patients fertility was preserved. Severe surgical complications (Clavien-Dindo stage III or more severe) occurred in 3 patients (6%). CONCLUSIONS The results confirm that segmental bowel resection is an efficient and safe method for the treatment of deep infiltrating colorectal endometriosis. Orv. Hetil., 2014, 155(5), 182-186.


Journal of Minimally Invasive Gynecology | 2018

Natural Orifice Specimen Extraction (NOSE) during Laparoscopic Bowel Resection for Colorectal Endometriosis: Technique and Outcome

Attila Bokor; Péter Lukovich; Noémi Csibi; Thomas D'Hooghe; Dan I. Lebovic; Réka Brubel; János Rigó

STUDY OBJECTIVE To present a detailed description of a modified natural orifice specimen extraction (NOSE) colectomy technique. We also report the postoperative outcomes of our prospective case series when compared with conventional laparoscopic bowel resection in a relatively large series of patients. DESIGN Canadian Task Force classification II-1. SETTING A university tertiary referral center. PATIENTS The last 90 consecutive patients in our care with deep infiltrating endometriosis of the bowel are presented in this study. Patients were diagnosed at the 1st Department of Obstetrics and Gynecology, Semmelweis University, Budapest, Hungary. INTERVENTIONS We performed laparoscopic bowel resection using the transrectal NOSE technique and compared the results of the new operative method (n = 30) with traditional laparoscopic bowel resection (n = 60). MEASUREMENTS AND MAIN RESULTS The median duration of surgery was 121 minutes in the control group and 96 minutes in the NOSE group (p = .005). According to the Clavien-Dindo classification, we observed a severe, grade IIIb or higher, overall complication rate of 3.3% among all 90 patients. In the control group, anastomosis insufficiency occurred in 3.3% of patients (2/60 cases), and in 1 patient with anastomotic leakage a rectovaginal fistula was observed (1.7%). There was no significant difference in the rates of severe postoperative complications (p = .55). The length of hospital stay in the control group was a median of 7 days (range, 5-13 days), whereas in the NOSE group it was 6 days (range, 3-11 days) (p < .001). CONCLUSION According to our findings, the use of NOSE colectomy offers a shorter recovery time and can eventually lead to a shorter surgery duration compared with traditional laparoscopic bowel resection.


Orvosi Hetilap | 2017

Prospektív vizsgálat a sigmoideoscopia diagnosztikai érzékenységének meghatározására vastagbelet infiltráló endometriosisban

Péter Lukovich; Noémi Csibi; Réka Brubel; Krisztina Tari; Szilvia Csuka; László Harsányi; János Rigó; Attila Bokor

INTRODUCTION AND AIM In the treatment of colorectal endometriosis a multidisciplinary laparoscopic resection is suggested, for this reason the correct selection of bowel infiltration is essential before surgery. PATIENTS AND METHOD Between 2009 and 2015, 383 sigmoidoscopies were performed in patients with endometriosis. Where mucosal invasion was absent secondary signs (wall rigidity, impression, kinking, pain during the examination, suffusion) were analysed. In endoscopically confirmed cases multidisciplinary surgery was performed, the remaining patients were operated by a gynecologic team only. RESULTS Endometriosis was endoscopically confirmed in 224 patients (58.49%), 108 of them underwent multidisciplinary operation, the negative 135 cases received gynaecological surgery. Bowel endometriosis was confirmed in 103 out of 108 cases intraoperatively, while in 8 cases of the sigmoidoscopically negative patients bowel infiltration was diagnosed intraoperatively by the gynaecological team. Complete sigmoidoscopy was performed in 43.47% of the cases. Intraluminal endometriosis was found in 4.91%, secondary signs as rigidity in 38.39%, impression in 45.54%, kinking in 57.14%, pain (in cases of examination without narcosis) in 26.06% and suffusion in 3.82% of the cases was found during sigmoidoscopy. Sigmoidoscopic examination has a 92.8% specificity and 96.2% sensitivity in cases of bowel endometriosis. CONCLUSION Sigmoidoscopy performed by an experienced gastroenterologist is a highly sensitive examination for the diagnosis of bowel endometriosis. Orv. Hetil., 2017, 158(7), 264-269.Absztrakt: Bevezetes es celkitűzes: A colorectalis rendszert erintő endometriosis ellatasa multidiszciplinaris laparoszkopos teammel javasolt. A belinfiltracio preoperativ felismerese ehhez elengedhetetlen. Betegek es modszer: 2009–2015 kozott prospektiven 383, endometriosissal diagnosztizalt betegnel tortent sigmoideoscopia. Intraluminalis endometriosis, fali infiltraciora jellemző masodlagos jelek (falmerevseg, benyomat, megtoretes, vizsgalat alatti fajdalom, suffusio) kerultek feldolgozasra. Műteti indikacio eseten a pozitiv esetek multidiszciplinaris, a negativ esetek nőgyogyasz altal vegzett műteten estek at. Eredmenyek: 224 (58,49%) pozitivnak talalt beteg kozul 108-nal multidiszciplinaris műtet tortent, a negativnak bizonyult esetek kozul 135 ginekologiai műteten esett at. 108-bol 103 betegnel a műtet soran is igazolodott a bel erintettsege, mig a negativ esetek kozul nyolc esetben volt jelentős belinfiltracio. Teljes sigmoideoscopias vizsgalat 43,4%-ban volt kivitelezhető. Intraluminalis endometri...


Orvosi Hetilap | 2015

Az idegkímélő műtéti technika jelentősége a mélyen infiltráló endometriosis sebészetében

Attila Bokor; Noémi Csibi; Péter Lukovich; Réka Brubel; József Gábor Joó; János Rigó

Absztrakt Bevezetes: A melyen infiltralo endometriosis kezeleseben az elvaltozasok hagyomanyos sebeszi eltavolitasa sulyos szovődmenyekkel jarhat. Celkitűzes: Idegkimelő, illetve hagyomanyos technikaval vegzett műtetek osszehasonlitasa, az egyes szovődmenyek előfordulasi gyakorisaganak ismertetese melyen infiltralo endometriosissal foglalkozo munkacsoportok műteti eredmenyeinek osszefoglalasaval. Modszer: A szerzők retrospektiv elemzest vegeztek a 2004. marcius 31. es 2015. marcius 31. kozott megjelent tudomanyos kozlemenyek felhasznalasaval. A keresest a http://www.pubmed.org adatbazisban vegeztek az „endometriosis”, „deep infiltrating,” „nerve-sparing, surgery” (endometriosis, melyen infiltralo, idegkimelő, sebeszet) keresőszavak kombinaciojanak alkalmazasaval. Eredmenyek: Melyen infiltralo endometriosis kapcsan vegzett, nem idegkimelő beavatkozasokat kovetően 19,1–38,5%-ban jelentkezhet atmeneti hugyholyag-diszfunkcio, mig idegkimelő műteti technika alkalmazasat kovetően a betegek 0,61–33,3%-aban fordu...INTRODUCTION Traditional surgeries performed in cases of deep infiltrating endometriosis lead to impaired quality of life. AIM To summarize the postoperative outcome and to compare the rate of postoperative complications after different therapeutic approaches applied in deep infiltrating endometriosis. METHOD The authors analized the articles published between March 31, 2004 and March 31, 2015, in the database http://www.pubmed.org using the following keywords: endometriosis, deep infiltrating, nerve sparing, surgery. RESULTS Non-nerve sparing surgery resulted in temporary urinary dysfunction in 19.1-38.5% of patients, while it occurred in 0.61-33.3% of patients after nerve-sparing surgery. Non-nerve sparing surgical technique resulted in an average of 121 days of need for self-catheretisation. When nerve-sparing surgeries were performed the duration of self-catheterisation varied between 7 to 39.8 days. After nerve sparing surgeries, permanent bladder dysfunction was not detected in any case. CONCLUSIONS Because of the successful treatment of the patients symptoms and the lower postoperative complication rate, nerve-sparing surgical technique leads to a significant improvement of the quality of life.


Orvosi Hetilap | 2014

A leggyakoribb nem onkológiai eredetu nogyógyászati kórképek epigenetikai háttere

József Gábor Joó; Éva Csatlós; Réka Brubel; Attila Bokor; Csaba Karabélyos; János Rigó

Epigenetic effects influence the function of genes regulating the main physiological mechanisms. Some of these environmental factors may reduce or inhibit the function of these genes. The environmental effects on gene function may result in a change of the DNA structure leading to non-heritable phenotype changes. Epigenetic factors play an important etiological role in the development of numerous diseases in obstetrics and gynecology. Uterine fibroids probably have a complex etiological background including epigenetic mechanisms. The multifactorial aetiology of endometriosis suggests key roles for immunological and hormonal factors in the development of the diseases. These mechanisms are influenced by epigenetic factors, which may serve as therapeutic targets in the future. The possible in utero origin of polycystic ovary syndrome determines the main directions of research concerning epigenetic factors in the etiological background, with the hope of eventual prevention and/or treatment in the preconceptional period as well as during pregnancy care.


Orvosi Hetilap | 2014

A leggyakoribb nem onkológiai eredetű nőgyógyászati kórképek epigenetikai háttere@@@Epigenetic background of the most common non-oncologic gynecological diseases

József Gábor Joó; Éva Csatlós; Réka Brubel; Attila Bokor; Csaba Karabélyos; János Rigó

Epigenetic effects influence the function of genes regulating the main physiological mechanisms. Some of these environmental factors may reduce or inhibit the function of these genes. The environmental effects on gene function may result in a change of the DNA structure leading to non-heritable phenotype changes. Epigenetic factors play an important etiological role in the development of numerous diseases in obstetrics and gynecology. Uterine fibroids probably have a complex etiological background including epigenetic mechanisms. The multifactorial aetiology of endometriosis suggests key roles for immunological and hormonal factors in the development of the diseases. These mechanisms are influenced by epigenetic factors, which may serve as therapeutic targets in the future. The possible in utero origin of polycystic ovary syndrome determines the main directions of research concerning epigenetic factors in the etiological background, with the hope of eventual prevention and/or treatment in the preconceptional period as well as during pregnancy care.


Orvosi Hetilap | 2014

Epigenetic background of the most common non-oncologic gynecological diseases

József Gábor Joó; Éva Csatlós; Réka Brubel; Attila Bokor; Csaba Karabélyos; János Rigó

Epigenetic effects influence the function of genes regulating the main physiological mechanisms. Some of these environmental factors may reduce or inhibit the function of these genes. The environmental effects on gene function may result in a change of the DNA structure leading to non-heritable phenotype changes. Epigenetic factors play an important etiological role in the development of numerous diseases in obstetrics and gynecology. Uterine fibroids probably have a complex etiological background including epigenetic mechanisms. The multifactorial aetiology of endometriosis suggests key roles for immunological and hormonal factors in the development of the diseases. These mechanisms are influenced by epigenetic factors, which may serve as therapeutic targets in the future. The possible in utero origin of polycystic ovary syndrome determines the main directions of research concerning epigenetic factors in the etiological background, with the hope of eventual prevention and/or treatment in the preconceptional period as well as during pregnancy care.

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Attila Bokor

Katholieke Universiteit Leuven

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Attila Bokor

Katholieke Universiteit Leuven

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