18 results on '"Noémi Nyolczas"'
Search Results
2. The Optimization of Guideline-Directed Medical Therapy during Hospitalization among Patients with Heart Failure with Reduced Ejection Fraction in Daily Clinical Practice
- Author
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Fanni Bánfi-Bacsárdi, Balázs Muk, Dávid Pilecky, Gábor Zoltán Duray, Róbert Gábor Kiss, and Noémi Nyolczas
- Subjects
Pharmacology (medical) ,Cardiology and Cardiovascular Medicine - Abstract
Introduction: Hospitalization due to heart failure (HF) progression is associated with poor prognosis. This highlights the role of the implementation of guideline-directed medical therapy (GDMT) in improving the morbidity and mortality of patients with heart failure with reduced ejection fraction (HFrEF). There are limited data about the intrahospital applicability of GDMT in real-world circumstances. We aimed to assess retrospectively the use of cornerstone GDMT including RASi (ACEI/ARB/ARNI), βB, MRA, and SGLT2i treatment in a consecutive real-world HFrEF patient population admitted with signs and symptoms of HF to the HF Unit of a Hungarian tertiary cardiac center between 2019 and 2021. The independent predictors of therapy optimization and the applicability of new HFrEF medication (ARNI, SGLT2i, vericiguat) were also investigated. Methods: Statistical comparison of admission and discharge medication was accomplished with Fisher’s exact test. The independent predictors of the introduction of triple therapy (RASi + βB + MRA) were analyzed using univariate and multivariate logistic regression. The proportion of patients eligible for vericiguat based on the inclusion and exclusion criteria of the VICTORIA trial was also investigated, as well as the number of patients suitable for ARNI and SGLT2i, taking into account the contraindications of application contained in the ESC 2021 HF Guidelines. Results: 238 patients were included. During hospitalization, the use of RASi (69% vs. 89%) (ACEI/ARBs [58% vs. 70%], ARNI [10% vs. 19%]), βBs (69% vs. 85%), and MRAs (61% vs. 95%) increased significantly (p < 0.05) compared to at admission, and the use of SGLT2i (3% vs. 11%) also rose (p = 0.0005). The application ratio of triple (RASi + βB + MRA; 43% vs. 77%) and quadruple (RASi + βB + MRA + SGLT2i; 2% vs. 11%) therapy increased as well (p < 0.0001). The independent predictors of discharge application of triple therapy revealed through multivariate logistic regression analysis were age, duration of hospitalization, eGFR, NTproBNP, and presence of diabetes mellitus. Sixty-eight percent of the cohort would have been suitable for vericiguat, 83% for ARNI, and 84% for SGLT2i. Conclusion: High rates of application of disease-modifying drugs are achievable among hospitalized HFrEF patients in severe clinical condition; thus, awareness of the need for their initiation must be raised.
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- 2022
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3. The Genetic Architecture of Hypertrophic Cardiomyopathy in Hungary: Analysis of 242 Patients with a Panel of 98 Genes
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Róbert, Sepp, Lidia, Hategan, Beáta, Csányi, János, Borbás, Annamária, Tringer, Eszter Dalma, Pálinkás, Viktória, Nagy, Hedvig, Takács, Dóra, Latinovics, Noémi, Nyolczas, Attila, Pálinkás, Réka, Faludi, Miklós, Rábai, Gábor Tamás, Szabó, Dániel, Czuriga, László, Balogh, Róbert, Halmosi, Attila, Borbély, Tamás, Habon, Zoltán, Hegedűs, and István, Nagy
- Abstract
Hypertrophic cardiomyopathy (HCM) is a primary disease of the myocardium most commonly caused by mutations in sarcomeric genes. We aimed to perform a nationwide large-scale genetic analysis of a previously unreported, representative HCM cohort in Hungary. A total of 242 consecutive HCM index patients (127 men, 44 ± 11 years) were studied with next generation sequencing using a custom-designed gene-panel comprising 98 cardiomyopathy-related genes. A total of 90 patients (37%) carried pathogenic/likely pathogenic (P/LP) variants. The percentage of patients with P/LP variants in genes with definitive evidence for HCM association was 93%. Most of the patients with P/LP variants had mutations in
- Published
- 2022
4. A háromér-betegség kezelése a FAME-3 vizsgálat eredményeinek tükrében
- Author
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Zsolt Piróth, Gábor Fülöp, Bettina Csanádi, Géza Fontos, Péter Andréka, Noémi Nyolczas, and Jenő Szolnoky
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Fractional Flow Reserve, Myocardial ,Percutaneous Coronary Intervention ,Treatment Outcome ,Myocardial Infarction ,Humans ,Drug-Eluting Stents ,General Medicine ,Coronary Artery Disease ,Coronary Artery Bypass - Abstract
A korábbi randomizált vizsgálatok rendre azt igazolták, hogy a coronariabypass-műtét előnyösebb a percutan coronariaintervencióval szemben a súlyos, kiterjedt koszorúér-betegség kezelésében. Ezt elsősorban az ismételt revascularisatio ritkább igényével magyarázzák, sőt bizonyos alcsoportokban még mortalitási előnyt és kevesebb szívinfarctust is regisztráltak az operáltak között. A közelmúltban publikált multicentrikus, randomizált FAME (Fractional Flow Reserve Versus Angiography in Multivessel Evaluation)-3 tanulmány 1500 beteg bevonásával azt kutatta, hogy a frakcionált „flow reserve” méréssel vezérelt, újgenerációs gyógyszerkibocsátó stent implantációjával végzett percutan coronariaintervenció non-inferior-e a modern koszorúérbypass-műtéttel szemben az egyéves halálozás, a szívinfarctus, a stroke és az ismételt revascularisatiós igény szempontjából. A FAME-3 vizsgálatban aktívan részt vevő szerzők ismertetik a vizsgálatok, a vizsgált populáció és az elvégzett beavatkozások jellemzőit, illetve az eredményeket. A FAME-3 vizsgálatban nem sikerült igazolni a percutan coronariaintervenció non-inferior voltát a bypassműtéttel szemben a háromér-betegség kezelésében. A szerzők részletesen elemzik ennek lehetséges okait, illetve a vizsgálatból származó egyéb fontos következtetéseket. Idetartozik a „kemény végpontok” tekintetében a szignifikáns különbség hiánya a két kar között, illetve az, hogy a perioperatív morbiditás tekintetében a percutan revascularisatio szignifikánsan jobbnak bizonyult. Bár a primer végpont értékelése meghatározó a klinikai döntéshozatalban, a másodlagos szempontok figyelembevétele is elengedhetetlen a részletes betegfelvilágosításnál és az egyéni revascularisatiós stratégia meghatározásában. Orv Hetil. 2022; 163(26): 1032–1036.
- Published
- 2022
5. Közepes (HFmrEF) és megtartott ejekciós frakciójú szívelégtelenség (HFpEF)
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Noémi Nyolczas
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- 2020
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6. HFmrEF: Közepes ejekciós frakciójú szívelégtelenség
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Noémi Nyolczas
- Subjects
General Medicine - Published
- 2019
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7. Magyar Szívelégtelenség Regiszter 2015–2016. Kezdeti eredmények
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Róbert Sepp, Katalin Nagy, Andras Nagy, Erzsébet Sziliczei, János Tomcsányi, Krisztina Heltai, Előd Papp, Péter Stadler, Attila Borbély, Ferenc Lakatos, Imre Kovács, Noémi Nyolczas, Zoltán Járai, Béla Herczeg, Réka Faludi, András Katona, and Tamas Habon
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medicine.medical_specialty ,COPD ,Ejection fraction ,business.industry ,medicine.medical_treatment ,Management of heart failure ,General Medicine ,Disease ,030204 cardiovascular system & hematology ,Implantable cardioverter-defibrillator ,medicine.disease ,03 medical and health sciences ,0302 clinical medicine ,Heart failure ,Emergency medicine ,Etiology ,Medicine ,Outpatient clinic ,030212 general & internal medicine ,business - Abstract
Abstract: Heart failure is associated with a poor prognosis despite significant advances in the pharmacological and device therapy and incurs very high cost because of frequent hospitalizations. Therefore, professional high-quality care is essential for both patients and the healthcare system. The best way to evaluate the quality of care for a particular disease is the use of disease-specific registries. Until now, there has not been a registry evaluating characteristics and management of heart failure patients in Hungary. For that reason, the Hungarian Society of Cardiology initiated the set-up of the Hungarian Heart Failure Registry. The Aim of this paper is to present the goals, methods and first year results of the Hungarian Heart Failure Registry. The goal of the Registry is to create a modern, web-based database that summarizes the data of large number of patients who are currently or were previously admitted to hospital or who are currently or were previously patients in an outpatient department due to severe heart failure (NYHA III–IV). Currently 17 cardiology departments participate in the development of the Registry. The planned number of patients is 2000. Initially follow-up was planned for one year (pilot study). After the evaluation of the relevant experiences of the pilot study, long-term follow-up is planned. The Registry collects information about the type of heart failure (heart failure with reduced – LVEF≤45% – vs. preserved – LVEF>45% – ejection fraction), etiology, co-morbidities, diagnostic methods, treatment as well as morbidity and mortality. After the first year, assessing the baseline parameters of 698 patients enrolled in the Registry we found that the majority of patients (87.8%) has heart failure with reduced ejection fraction and in 39.8% of the patients heart failure has an ischaemic origin. The most frequent co-morbidity was hypertension followed by diabetes, renal insufficiency and COPD. The patients were treated with ACE inhibitors or ARBs in 94.4%, with beta blockers in 95.9%, and mineralocorticoid receptor antagonists in 73.9%. The mean dose of neurohormonal antagonists was higher than half of the target dose defined by current guidelines. The use of cardiac resynchronisation therapy was 11.7% and implantable cardioverter defibrillator was 25.8%. The pharmacological and device therapy of patients who were enrolled in the Registry until now was fit the current guidelines’ recommendations. This, however, does not mean that the management of heart failure is without problems in our country but that high quality patient care is available with adequate heart failure treatment in cardiology departments dedicated to heart failure care. Orv. Hetil., 2017, 158(3), 94–100.
- Published
- 2017
- Full Text
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8. A 2016-ban publikált új ESC szívelégtelenség irányelv krónikus szívelégtelenség diagnózisára és kezelésére vonatkozó ajánlásai
- Author
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Noémi Nyolczas
- Subjects
General Medicine - Published
- 2017
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9. Újdonságok a krónikus szívelégtelenség gyógyszeres terápiájában
- Author
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Noémi Nyolczas
- Subjects
Gynecology ,03 medical and health sciences ,medicine.medical_specialty ,0302 clinical medicine ,business.industry ,Internal medicine ,Cardiology ,Medicine ,030212 general & internal medicine ,General Medicine ,030204 cardiovascular system & hematology ,business - Abstract
Absztrakt A kronikus szivelegtelenseg gyogyszeres kezeleset illetően szamos uj vizsgalat eredmenyet publikaltak az elmult evekben, es 2016-ban megjelent az Europai Kardiologiai Tarsasag (ESC) akut es kronikus szivelegtelenseg diagnozisara es terapiajara vonatkozo legujabb iranyelve, illetve az amerikai kardiologus tarsasagoknak (ACC/AHA/HFSA) a szivelegtelenseg gyogyszeres kezelesere vonatkozo iranyelv megujitasa is. A kozlemeny az uj iranyelvek tukreben kivan attekintest adni a kronikus szivelegtelenseg gyogyszeres kezelesenek aktualis helyzeteről, magaba foglalva az uj klinikai vizsgalatok eredmenyeit. Orv. Hetil., 2016, 157(38), 1517–1521.
- Published
- 2016
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10. [Perioperative use of levosimendan in cardiac surgery. Hungarian recommendation]
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László, Szudi, László, Székely, Erzsébet, Sápi, Zsolt, Prodán, Jenő, Szolnoky, Ákos, Csomós, Noémi, Nyolczas, Erzsébet, Paulovich, Endre, Németh, István, Hartyánszky, Endre, Zima, Balázs, Sax, Andrea, Bertalan, László, Hejjel, Gábor, Bogáts, Barna, Babik, Károly, Gombocz, Tamás, Szerafin, György, Koszta, and Andrea, Molnár
- Subjects
Pyridazines ,Hungary ,Cardiotonic Agents ,Cardiovascular Diseases ,Preoperative Care ,Hydrazones ,Humans ,Cardiac Surgical Procedures ,Simendan - Abstract
Low output syndrome significantly increases morbidity and mortality of cardiac surgery and lengthens the durations of intensive care unit and hospital stays. Its treatment by catecholamines can lead to undesirable systemic and cardiac complications. Levosimendan is a calcium sensitiser and adenosine triphosphate (ATP)-sensitive potassium channel (IAbsztrakt: Az alacsony perctérfogat szindróma jelentősen emeli a szívműtétek szövődményeit és a halálozást, megnyújtja az intenzív osztályos és kórházi tartózkodási időt. A kezelésére alkalmazott katecholaminterápiának nemkívánatos szisztémás és kardiális mellékhatásai lehetnek. A levoszimendán érzékenyebbé teszi a szívizom kalciumcsatornáit kalciumra, és megnyitja az adenozin-trifoszfát (ATP)-szenzitív káliumcsatornákat (K
- Published
- 2018
11. Combination of Hydralazine and Isosorbide-Dinitrate in the Treatment of Patients with Heart Failure with Reduced Ejection Fraction
- Author
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Noémi, Nyolczas, Miklós, Dékány, Balázs, Muk, and Barna, Szabó
- Subjects
Heart Failure ,Clinical Trials as Topic ,Humans ,Drug Interactions ,Stroke Volume ,Isosorbide Dinitrate ,Hydralazine - Abstract
The use of direct acting vasodilators (the combination of hydralazine and isosorbide dinitrate -Hy+ISDN-) in heart failure with reduced ejection fraction (HFrEF) is supported by evidence, but rarely used.However, treatment with Hy+ISDN is guideline-recommended for HFrEF patients who cannot receive either angiotensin-converting enzyme inhibitors or angiotensin receptor blockers due to intolerance or contraindication, and in self-identified African-American HFrEF patients who are symptomatic despite optimal neurohumoral therapy.The Hy+ISDN combination has arterial and venous vasodilating properties. It can decrease preload and afterload, decrease left ventricular end-diastolic diameter and the volume of mitral regurgitation, reduce left atrial and left ventricular wall tension, decrease pulmonary artery pressure and pulmonary arterial wedge pressure, increase stroke volume, and improve left ventricular ejection fraction, as well as induce left ventricular reverse remodelling. Furthermore, Hy+ISDN combination has antioxidant property, it affects endothelial dysfunction beneficially and improves NO bioavailability. Because of these benefits, this combination can improve the signs and symptoms of heart failure, exercise capacity and quality of life, and, most importantly, reduce morbidity and mortality in well-defined subgroups of HFrEF patients.Accordingly, this therapeutic option can in many cases play an essential role in the treatment of HFrEF.
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- 2017
12. [Hungarian Heart Failure Registry 2015-2016. Preliminary results]
- Author
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Noémi, Nyolczas, Krisztina, Heltai, Attila, Borbély, Tamás, Habon, Zoltán, Járai, Erzsébet, Sziliczei, Péter, Stadler, Réka, Faludi, Béla, Herczeg, Előd, Papp, Ferenc, Lakatos, Katalin, Nagy, András, Katona, Imre, Kovács, János, Tomcsányi, András, Nagy, and Róbert, Sepp
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Adult ,Heart Failure ,Male ,Practice Guidelines as Topic ,Cardiology ,Disease Management ,Humans ,Female ,Guideline Adherence ,Registries ,Middle Aged ,Societies, Medical ,Aged - Abstract
Heart failure is associated with a poor prognosis despite significant advances in the pharmacological and device therapy and incurs very high cost because of frequent hospitalizations. Therefore, professional high-quality care is essential for both patients and the healthcare system. The best way to evaluate the quality of care for a particular disease is the use of disease-specific registries. Until now, there has not been a registry evaluating characteristics and management of heart failure patients in Hungary. For that reason, the Hungarian Society of Cardiology initiated the set-up of the Hungarian Heart Failure Registry. The Aim of this paper is to present the goals, methods and first year results of the Hungarian Heart Failure Registry. The goal of the Registry is to create a modern, web-based database that summarizes the data of large number of patients who are currently or were previously admitted to hospital or who are currently or were previously patients in an outpatient department due to severe heart failure (NYHA III-IV). Currently 17 cardiology departments participate in the development of the Registry. The planned number of patients is 2000. Initially follow-up was planned for one year (pilot study). After the evaluation of the relevant experiences of the pilot study, long-term follow-up is planned. The Registry collects information about the type of heart failure (heart failure with reduced - LVEF≤45% - vs. preserved - LVEF45% - ejection fraction), etiology, co-morbidities, diagnostic methods, treatment as well as morbidity and mortality. After the first year, assessing the baseline parameters of 698 patients enrolled in the Registry we found that the majority of patients (87.8%) has heart failure with reduced ejection fraction and in 39.8% of the patients heart failure has an ischaemic origin. The most frequent co-morbidity was hypertension followed by diabetes, renal insufficiency and COPD. The patients were treated with ACE inhibitors or ARBs in 94.4%, with beta blockers in 95.9%, and mineralocorticoid receptor antagonists in 73.9%. The mean dose of neurohormonal antagonists was higher than half of the target dose defined by current guidelines. The use of cardiac resynchronisation therapy was 11.7% and implantable cardioverter defibrillator was 25.8%. The pharmacological and device therapy of patients who were enrolled in the Registry until now was fit the current guidelines' recommendations. This, however, does not mean that the management of heart failure is without problems in our country but that high quality patient care is available with adequate heart failure treatment in cardiology departments dedicated to heart failure care. Orv. Hetil., 2017, 158(3), 94-100.
- Published
- 2017
13. [Novelties in the pharmacological treatment of chronic heart failure]
- Author
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Noémi, Nyolczas
- Subjects
Heart Failure ,Professional Role ,Health Planning Guidelines ,Adrenergic beta-Antagonists ,Chronic Disease ,Practice Guidelines as Topic ,Cardiology ,Humans ,Angiotensin-Converting Enzyme Inhibitors ,Angiotensin II Type 1 Receptor Blockers ,Societies, Medical - Abstract
Recently, results of several novel clinical trials on the pharmacological treatment of chronic heart failure have been published. In addition, the new European Society of Cardiology guidelines for the diagnosis and treatment of acute and chronic heart failure and a focused update by the ACC/AHA/HFSA on new pharmacological therapy for heart failure has been reported in 2016. This paper intends to provide an overview of the current state of the pharmacological treatment of chronic heart failure in the light of the new guidelines which incorporate the results of the new clinical trials. Orv. Hetil., 2016, 157(38), 1517-1521.
- Published
- 2016
14. [Measurement of natriuretic peptides in heart failure: the good laboratory and clinical practice]
- Author
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L Gábor, Kovács, Noémi, Nyolczas, Tamás, Habon, Róbert, Sepp, Zsolt, Piroth, Ágota, Hajas, Imre, Boncz, János, Tomcsányi, János, Kappelmayer, and Béla, Merkely
- Subjects
Heart Failure ,Hungary ,Respiratory Tract Diseases ,Prognosis ,Severity of Illness Index ,Patient Discharge ,Peptide Fragments ,Direct Service Costs ,Diagnosis, Differential ,Dyspnea ,Patient Admission ,Treatment Outcome ,Acute Disease ,Chronic Disease ,Natriuretic Peptide, Brain ,Ambulatory Care ,Humans ,Reagent Kits, Diagnostic ,Natriuretic Peptides ,Biomarkers ,Blood Chemical Analysis - Abstract
Cardiac natriuretic peptides (BNP, NT-proBNP) play a pivotal role in cardiovascular homeostasis, mainly due to their roles in vasodilatation, natriuresis, diuresis and due to their antiproliferative properties. Proper measurement of the natriuretic peptide levels may help differentiate between respiratory and cardiac forms of dyspnea, diagnose early forms of heart failure, evaluate severity of heart failure (prognosis) and monitor the efficacy of therapy. In many countries natriuretic peptide levels are being used as one of the earliest diagnostics tools to evaluate the involvement of the heart. Current theoretical and clinical data confirm the importance of natriuretic peptides in routine healthcare. These roles are clearly described in international recommendations and guidelines. In the current review the authors discuss the problems of the measurement of natriuretic peptides in Hungary, including several aspects related to laboratory medicine, cardiology and health economy.
- Published
- 2015
15. [Untitled]
- Author
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István Préda, Noémi Nyolczas, Miklós Dékány, and János Fiók
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Pharmacology ,medicine.medical_specialty ,Ejection fraction ,Heart disease ,business.industry ,Cardiomyopathy ,Dilated cardiomyopathy ,General Medicine ,medicine.disease ,Bisoprolol ,Internal medicine ,Heart failure ,Heart rate ,medicine ,Cardiology ,Pharmacology (medical) ,Cardiology and Cardiovascular Medicine ,Pulmonary wedge pressure ,business ,medicine.drug - Abstract
Survival improvement by beta-blocker treatment in patients with chronic heart failure appears to be related to the intermediate-term changes in left ventricular function. The therapeutic potential of beta blockade might be increased by early identification of patients in whom left ventricular function would deteriorate. We aimed at predicting the intermediate-term effect of bisoprolol on left ventricular systolic and diastolic function in patients with dilated cardiomyopathy. Twenty-five patients with symptomatic chronic heart failure treated with bisoprolol were investigated. As a background, tailored therapy with digitalis, diuretics and vasodilators was given. Prediction of the 6-month (intermediate-term) effect of bisoprolol was investigated, using baseline values and short-term (1-month) changes of simple, noninvasive parameters obtained at rest and during maximal exercise. Multivariate analysis resulted in reliable predictions, there was close correlation between the observed and predicted changes of left atrial filling pressure (R = 0.87) and left ventricular ejection fraction (R = 0.74). The baseline value of left ventricular ejection fraction, short-term changes of the pulse amplitude and the double product proved independent predictors of intermediate-term changes of left ventricular ejection fraction. The baseline value of mean pulmonary capillary wedge pressure, heart rate, and increase in heart rate during maximal exercise were predictors of the intermediate-term changes in mean pulmonary capillary wedge pressure. In dilated cardiomyopathy, the intermediate-term effects of bisoprolol on left ventricular ejection fraction and mean pulmonary capillary wedge pressure can be predicted reliably by simple noninvasive variables in the early treatment phase.
- Published
- 2000
- Full Text
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16. Central effects of the potent and highly selective μ opioid antagonist (CTOP) in mice
- Author
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Noémi Nyolczas, Gábor L. Kovács, Márta Kriván, Zoltán Sarnyai, and Karoly Gulya
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Pharmacology ,medicine.drug_class ,business.industry ,Antagonist ,(+)-Naloxone ,Drug interaction ,Hypothermia ,Receptor antagonist ,In vivo ,medicine ,Morphine ,medicine.symptom ,business ,Opioid antagonist ,medicine.drug - Abstract
The ability of the selective cyclic μ-opioid receptor antagonist, (CTOP), to inhibit the acute and chronic effects of morphine in vivo was studied in mice. Intracerebroventricular (i.c.v.) administration of CTOP antagonized the analgesic effect of morphine in a dose-dependent manner, as measured by the heat-irradiant (tail-flick) method. CTOP was more effective than naloxone in inhibiting analgesia on a molar basis. CTOP also antagonized the acute morphine-induced hypermotility. CTOP caused withdrawal hypothermia and a loss of body weight in morphine-dependent animals. After the development of morphine-induced chronic dependence, CTOP administered i.c.v. caused a dose-dependent loss of body weight and hypothermia, and was about 10–400 times more potent than naloxone. CTOP administered alone to drugnaive mice did not cause antinociception, changes in body weight or body temperature.
- Published
- 1988
- Full Text
- View/download PDF
17. Analgesic and tolerance-inducing effects of the highly selective δ opioid agonist enkephalin in mice
- Author
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Gábor L. Kovács, Karoly Gulya, Márta Kriván, and Noémi Nyolczas
- Subjects
Pharmacology ,medicine.medical_specialty ,Enkephalin ,Chemistry ,Penicillamine ,Analgesic ,Physical dependence ,Hypothermia ,Endocrinology ,Nociception ,Internal medicine ,medicine ,Morphine ,medicine.symptom ,Receptor ,medicine.drug - Abstract
The novel and highly selective, conformationally restricted enkephalin analogue for δ-opioid receptors, enkephalin (DPDPE; Pen = penicillamine), was studied in various in vivo tests for analgesia, tolerance and physical dependence. Intracerebroventricular (i.c.v.) administration of DPDPE caused a dose-dependent, naloxone-reversible antinociception, measured with the heat-irradiant (tail-flick) method. Acute tolerance developed to the antinociceptive effect of DPDPE. DPDPE also caused mild signs of physical dependence (withdrawal hypothermia and body weight loss) after repeated peptide treatment. Severe signs of morphine withdrawal (e.g. withdrawal jumping) on the other hand, could not be reversed by the administration of DPDPE. It is concluded that the activation of central δ-opioid receptors may play a role in controlling pain mechanisms, and that this activation is followed by the rapid development of a tolerance to this action.
- Published
- 1988
- Full Text
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18. Effect of a selective - opioid agonist, d-pen2-d-pen5 - enkephalin (DPDPE), on grooming and sniffing activity
- Author
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Gyula Szabó, Noémi Nyolczas, Zoltán Sarnyai, Márta Kriván, Karoly Gulya, Gábor L. Kovács, and G. Telegdy
- Subjects
Agonist ,medicine.medical_specialty ,Communication ,Intracerebral injection ,Enkephalin ,business.industry ,Chemistry ,medicine.drug_class ,General Neuroscience ,Olfactory tubercle ,High density ,Highly selective ,Neuropsychology and Physiological Psychology ,Endocrinology ,Sniffing ,Opioid Agonist ,Physiology (medical) ,Internal medicine ,medicine ,business - Abstract
The effect of intracerebral injection of DPDPE, a highly selective and specific δ-opioid agonist, was investigated on stereotype sniffing and grooming behavior in rats. DPDPE, administered into brain regions with high density of supposed δ-opioid binding sites (caudate-putamen, olfactory tubercle) significantly increased the stereotype grooming and sniffing activity. The result gave functional evidence for the existence of and effects of δ-opioid binding sites.
- Published
- 1989
- Full Text
- View/download PDF
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