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001-es BibID:BIBFORM077036
035-os BibID:(WoS)000458934000210 (Scopus)85061291471
Első szerző:Bombicz Mariann (gyógyszerész)
Cím:The Drug Candidate BGP-15 Delays the Onset of Diastolic Dysfunction in the Goto-Kakizaki Rat Model of Diabetic Cardiomyopathy / Bombicz Mariann, Priksz Daniel, Gesztelyi Rudolf, Kiss Rita, Hollos Nora, Varga Balazs, Nemeth Jozsef, Toth Attila, Papp Zoltan, Szilvassy Zoltan, Juhasz Bela
Dátum:2019
ISSN:1420-3049
Megjegyzések:Background and Aims: Diabetic cardiomyopathy (DCM) is an emerging problem worldwide due to an increase in the incidence of type 2 diabetes. Animal studies have indicated that metformin and pioglitazone can prevent DCM partly by normalizing insulin resistance, and partly by other, pleiotropic mechanisms. One clinical study has evidenced the insulin-senzitizing effect of the drug candidate BGP-15, along with additional animal studies that have confirmed its beneficial effects in models of diabetes, muscular dystrophy and heart failure, with the drug affecting chaperones, contractile proteins and mitochondria. Our aim was to investigate whether the inzulin-senzitizer BGP-15 exert any additive cardiovascular effects compared to metformin or pioglitazone, using Goto-Kakizaki (GotoK) rats. Methods: Rats were divided into five groups: (I) healthy control (Wistar), (II) diseased (GotoK), and GotoK rats treated with: (III) BGP-15, (IV) metformin, and (V) pioglitazone, respectively, for 12 weeks. Metabolic parameters and insulin levels were determined at the endpoint. Doppler echocardiography was carried out to estimate diabetes-associated cardiac dysfunction. Thoracotomy was performed after the vascular status of rats was evaluated using an isolated aortic ring method. Furthermore, western blot assays were carried out to determine expression or phosphorylation levels of selected proteins that take part in myocyte relaxation. Results: BGP-15 restored diastolic parameters (e·/a·, E/e·, LAP, E and A wave) and improved Tei-index compared to untreated GotoK rats. Vascular status was unaffected by BGP-15. Expression of sarco/endoplasmic reticulum Ca2+-ATPase (SERCA2a) and phosphodiesterase 9A (PDE9A) were unchanged by the treatments, but the phosphorylation level of vasodilator-stimulated phosphoprotein (VASP) and phospholamban (PLB) increased in BGP-15-treated rats, in comparison to GotoK. Conclusions: Even though the BGP-15-treatment did not interfere significantly with glucose homeostasis and vascular status, it considerably enhanced diastolic function, by affecting the SERCA/phospholamban pathway in GotoK rats. Although it requires further investigation, BGP-15 may offer a new therapeutic approach in DCM.
Tárgyszavak:Orvostudományok Gyógyszerészeti tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
BGP-15
diastolic dysfunction
type 2 diabetes
Goto-Kakizaki
echocardiography
Megjelenés:Molecules. - 24 : 3 (2019), p. 1-18. -
További szerzők:Priksz Dániel (1989-) (farmakológus) Gesztelyi Rudolf (1969-) (kísérletes farmakológus) Kiss Rita (1974-) (laboratóriumi diagnosztika szakorvos) Hollós Nóra (1995-) (hallgató) Varga Balázs (1984-) (kísérletes farmakológus) Németh József (1954-) (vegyész, analitikus) Tóth Attila (1971-) (biológus) Papp Zoltán (1965-) (kardiológus, élettanász) Szilvássy Zoltán (1957-) (belgyógyász, farmakológus, klinikai farmakológus) Juhász Béla (1978-) (kísérletes farmakológus)
Pályázati támogatás:GINOP-2.3.4-15-2016-00002
GINOP
Internet cím:Szerző által megadott URL
DOI
Intézményi repozitóriumban (DEA) tárolt változat
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2.

001-es BibID:BIBFORM086205
035-os BibID:(WoS)000553858800078 (Scopus)85085910076
Első szerző:Hegedűs Csaba (Molekuláris biológus, Cera-Med Kft. Debrecen)
Cím:SIRT1 Activation by Equisetum Arvense L. (Horsetail) Modulates Insulin Sensitivity in Streptozotocin Induced Diabetic Rats / Csaba Hegedűs, Mariana Muresan, Andrea Badale, Mariann Bombicz, Balázs Varga, Anna Szilágyi, Dávid Sinka, Ildikó Bácskay, Mihaela Popoviciu, Ioan Magyar, Mária Magdolna Szarvas, Erzsébet Szőllősi, József Németh, Zoltán Szilvássy, Annamária Pallag, Rita Kiss
Dátum:2020
ISSN:1420-3049
Megjegyzések:Equisetum arvense L., commonly known as field horsetail is a perennial fern of which extracts are rich sources of phenolic compounds, flavonoids, and phenolic acids. Activation of SIRT1 that was shown to be involved in well-known signal pathways of diabetic cardiomyopathy has a protective effect against oxidative stress, inflammatory processes, and apoptosis that are the basis of diseases such as obesity, diabetes mellitus, or cardiovascular diseases. The aim of our study was to evaluate the antidiabetic and cardioprotective effects of horsetail extract in streptozotocin induced diabetic rats. METHODS: Diabetes was induced by a single intraperitoneal injection of 45 mg/kg streptozotocin. In the control groups (healthy and diabetic), rats were administered with vehicle, whilst in the treated groups, animals were administered with 50, 100, or 200 mg/kg horsetail extract, respectively, for six weeks. Blood glucose levels, glucose tolerance, and insulin sensitivity were determined, and SIRT1 levels were measured from the cardiac muscle. RESULTS: The horsetail extract showed moderate beneficial changes in blood glucose levels and exhibited a tendency to elevate SIRT1 levels in cardiomyocytes, furthermore a 100 mg/kg dose also improved insulin sensitivity. CONCLUSIONS: Altogether our results suggest that horsetail extract might have potential in ameliorating manifested cardiomyopathy acting on SIRT1.
Tárgyszavak:Orvostudományok Gyógyszerészeti tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Megjelenés:Molecules. - 25 : 11 (2020), p. 2541-2561. -
További szerzők:Muresan, Mariana Badale, Andrea (1986-) (gyógyszerész) Bombicz Mariann (1987-) (gyógyszerész) Varga Balázs (1984-) (kísérletes farmakológus) Szilágyi Anna Tünde (1981-) Sinka Dávid Zsolt (1991-) (gyógyszerész) Bácskay Ildikó (1969-) (gyógyszerész, gyógyszertechnológus) Popoviciu, Mihaela Magyar, Ioan Szarvas Mária Magdolna (1989-) (élelmiszeripari mérnök) Szőllősi Erzsébet (1983-) (biológus) Németh József (1954-) (vegyész, analitikus) Szilvássy Zoltán (1957-) (belgyógyász, farmakológus, klinikai farmakológus) Pallag Annamária Kiss Rita (1974-) (laboratóriumi diagnosztika szakorvos)
Pályázati támogatás:NKFIH1150-6/2019
Egyéb
GINOP-2.3.2-15-2016-00043
GINOP
EFOP-3.6.2-16-2017-00009
EFOP
Internet cím:Szerző által megadott URL
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Intézményi repozitóriumban (DEA) tárolt változat
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3.

001-es BibID:BIBFORM061364
035-os BibID:(WOS)000365744800007 (Scopus)84948683402
Első szerző:Hegedűs Csaba (Molekuláris biológus, Cera-Med Kft. Debrecen)
Cím:Effect of long-term olanzapine treatment on meal-induced insulin sensitization and on gastrointestinal peptides in female Sprague-Dawley rats / Csaba Hegedűs, Diána Kovács, Rita Kiss, Réka Sári, József Németh, Zoltán Szilvássy, Barna Peitl
Dátum:2015
ISSN:0269-8811
Megjegyzések:Meal-induced insulin sensitization (MIS), an endogenous adaptive mechanism is activated post-prandially. Reduced MIS leads to diabetes, but itsactivation improves insulin sensitivity. MIS is preserved to single olanzapine administration, therefore we aimed to investigate the chronic effect ofolanzapine on fasted-state insulin sensitivity and on MIS in female Sprague?Dawley rats. Daily food and water intake, stool and urine production andbody weight were determined. The MIS was characterized by a rapid insulin sensitivity test. Fasting hepatic and peripheral insulin sensitivity weredetermined by a hyperinsulinaemic euglycaemic glucose clamping supplemented with radiotracer technique. Fasted and post-prandial blood sampleswere obtained for plasma insulin, leptin, ghrelin, amylin, GLP-1, GIP, PYY and PP determination. Adiposity was characterized by weighing intraabdominaland inguinal fat pads. Olanzapine caused hepatic insulin resistance and a reduced metabolic clearance rate of insulin, but the MIS retainedits function. Body weight and adiposity were enhanced, but olanzapine failed to increase food intake. Fasting insulin and leptin were elevated and thepost-prandial reduction in ghrelin level was inhibited by olanzapine.The MIS remained functionally intact after long-term olanzapine treatment. Altered insulin, leptin and ghrelin levels indicate olanzapine-inducedmetabolic derangements. Pharmacological activation of MIS could potentially be exploited to treat or prevent olanzapine-induced insulin resistance.
Tárgyszavak:Orvostudományok Gyógyszerészeti tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
olanzapine
insulin resistance
obesity
ghrelin
leptin
Megjelenés:Journal Of Psychopharmacology. - 29 : 12 (2015), p. 1271-1279. -
További szerzők:Kovács Diána Klára (1985-) (Molekuláris biológus) Kiss Rita (1974-) (laboratóriumi diagnosztika szakorvos) Sári Réka (farmakológus) Németh József (1954-) (vegyész, analitikus) Szilvássy Zoltán (1957-) (belgyógyász, farmakológus, klinikai farmakológus) Peitl Barna (1972-) (orvos, farmakológus)
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Intézményi repozitóriumban (DEA) tárolt változat
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4.

001-es BibID:BIBFORM072627
035-os BibID:(cikkazonosító)771 (scopus)85043576366 (wos)000428309800128
Első szerző:Kiss Rita (laboratóriumi diagnosztika szakorvos)
Cím:Insulin-Sensitizer Effects of Fenugreek Seeds in Parallel with Changes in Plasma MCH Levels in Healthy Volunteers / Kiss Rita, Szabó Katalin, Gesztelyi Rudolf, Somodi Sándor, Kovács Péter, Szabó Zoltán, Németh József, Priksz Dániel, Kurucz Andrea, Juhász Béla, Szilvássy Zoltán
Dátum:2018
ISSN:1661-6596 1422-0067
Megjegyzések:In developed, developing and low-income countries alike, type 2 diabetes mellitus (T2DM)is one of the most common chronic diseases, the severity of which is substantially a consequenceof multiple organ complications that occur due to long-term progression of the disease beforediagnosis and treatment. Despite enormous investment into the characterization of the disease, itslong-term management remains problematic, with those afflicted enduring significant degradationin quality-of-life. Current research efforts into the etiology and pathogenesis of T2DM, are focusedon defining aberrations in cellular physiology that result in development of insulin resistance andstrategies for increasing insulin sensitivity, along with downstream effects on T2DM pathogenesis.Ongoing use of plant-derived naturally occurring materials to delay the onset of the disease oralleviate symptoms is viewed by clinicians as particularly desirable due to well-established efficacyand minimal toxicity of such preparations, along with generally lower per-patient costs, in comparisonto many modern pharmaceuticals. A particularly attractive candidate in this respect, is fenugreek,a plant that has been used as a flavouring in human diet through recorded history. The presentstudy assessed the insulin-sensitizing effect of fenugreek seeds in a cohort of human volunteers, andtested a hypothesis that melanin-concentrating hormone (MCH) acts as a critical determinant ofthis effect. A test of the hypothesis was undertaken using a hyperinsulinemic euglycemic glucoseclamp approach to assess insulin sensitivity in response to oral administration of a fenugreek seedpreparation to healthy subjects. Outcomes of these evaluations demonstrated significant improvementin glucose tolerance, especially in patients with impaired glucose responses. Outcome data furthersuggested that fenugreek seed intake-mediated improvement in insulin sensitivity correlated withreduction in MCH levels.
Tárgyszavak:Orvostudományok Gyógyszerészeti tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
hyperinsulinemic euglycemic glucose clamp (HEGC)
fenugreek
melanin-concentrating hormone (MCH)
RIA
type 2 diabetes
clinical pilot study
Megjelenés:International Journal Of Molecular Sciences. - 19 : 3 (2018), p. 1-17. -
További szerzők:Szabó Katalin (1989-) (táplálkozástudományi szakember) Gesztelyi Rudolf (1969-) (kísérletes farmakológus) Somodi Sándor (1977-) (belgyógyász) Kovács Péter (1947-) (belgyógyász, kardiológus, klinikai farmakológus) Szabó Zoltán (1973-) (belgyógyász, kardiológus) Németh József (1954-) (vegyész, analitikus) Priksz Dániel (1989-) (farmakológus) Kurucz Andrea (1984-) (orvos) Juhász Béla (1978-) (kísérletes farmakológus) Szilvássy Zoltán (1957-) (belgyógyász, farmakológus, klinikai farmakológus)
Pályázati támogatás:GINOP-2.3.4-15-2016-00002
GINOP
AGR-PIAC-13-1-2013-0008
Egyéb
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Intézményi repozitóriumban (DEA) tárolt változat
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5.

001-es BibID:BIBFORM061365
Első szerző:Kovács Diána Klára (Molekuláris biológus)
Cím:Meal-induced insulin sensitization is preserved after acute olanzapine administration in female Sprague-Dawley rats / Diána Kovács, Csaba Hegedűs, Rita Kiss, Réka Sári, József Németh, Zoltán Szilvássy, Barna Peitl
Dátum:2015
ISSN:0028-1298
Megjegyzések:Olanzapine, an atypical antipsychotic, can acutely induce fasting insulin resistance, but we do not know whether it is able to modulate the meal-induced insulin sensitization (MIS). Two main experimental groups (control and olanzapine-treated) were created with two subgroups (fasted and re-fed) within each. After oral vehicle/olanzapine administration, the first meal size and duration and the total amount of consumed food was recorded in conscious rats. Then, under anaesthesia, the carotid artery and jugular vein was prepared and cannulated to obtain samples for blood glucose and hormone determination as well as for insulin/glucose infusion, respectively. Basal insulin sensitivity and MIS was determined by homeostasis model assessment (HOMA) calculation and by rapid insulin sensitivity test, respectively. In fasted animals, olanzapine increased blood glucose and plasma insulin and reduced basal insulin sensitivity, but it failed to modify other hormone levels. Postprandial leptin and glucose-dependent insulinotropic polypeptide (GIP) levels increased, and ghrelin level decreased significantly (p?<?0.05) both in vehicle- and olanzapine-treated groups, but plasma insulin increased only in vehicle-treated animals. Furthermore, decrement in ghrelin level was attenuated in olanzapine-treated animals compared to controls. There was no significant change in the first meal size and duration or in the total amount of food consumed. Olanzapine had no effect on the MIS. We demonstrated that olanzapine can induce insulin resistance without weight gain in healthy rats. Furthermore, the MIS was preserved after acute olanzapine treatment. The blunted postprandial ghrelin and insulin response could contribute to the effect of olanzapine on feeding behaviour. Pharmacological induction of MIS may improve the olanzapine-induced insulin resistance.
Tárgyszavak:Orvostudományok Gyógyszerészeti tudományok idegen nyelvű folyóiratközlemény külföldi lapban
Olanzapine
Insulin sensitivity
Satiety
Ghrelin
Gut hormones
Megjelenés:Naunyn-Schmiedebergs Archives Of Pharmacology. - 388 : 5 (2015), p. 525-530. -
További szerzők:Hegedűs Csaba (1983-) (Molekuláris biológus, Cera-Med Kft. Debrecen) Kiss Rita (1974-) (laboratóriumi diagnosztika szakorvos) Sári Réka (farmakológus) Németh József (1954-) (vegyész, analitikus) Szilvássy Zoltán (1957-) (belgyógyász, farmakológus, klinikai farmakológus) Peitl Barna (1972-) (orvos, farmakológus)
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Intézményi repozitóriumban (DEA) tárolt változat
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6.

001-es BibID:BIBFORM074359
035-os BibID:(WOS)000436968500012 (Scopus)85048672173
Első szerző:Simon Ádám (molekuláris biológus)
Cím:Feeding state and age dependent changes in melanin-concentrating hormone expression in the hypothalamus of broiler chickens / Simon Ádám, Németh József, Jávor András, Komlósi István, Bai Péter, Oláh János, Juhász Béla, Kiss Rita, Szilvássy Zoltán, Czeglédi Levente
Dátum:2018
ISSN:0001-527X
Tárgyszavak:Agrártudományok Állattenyésztési tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Megjelenés:Acta Biochimica Polonica. - 65 : 2 (2018), p. 251-258. -
További szerzők:Németh József (1954-) (vegyész, analitikus) Jávor András (1952-) (agrármérnök) Komlósi István (1960-) (agrármérnök) Bai Péter (1976-) (biokémikus) Oláh János (1976-) (állattenyésztés) Juhász Béla (1978-) (kísérletes farmakológus) Kiss Rita (1974-) (laboratóriumi diagnosztika szakorvos) Szilvássy Zoltán (1957-) (belgyógyász, farmakológus, klinikai farmakológus) Czeglédi Levente (1977-) (agrármérnök)
Pályázati támogatás:EFOP-3.6.3-VEKOP-16-2017-00008
EFOP
EFOP-3.6.2-16-2017-00009
EFOP
GINOP-2.3.4-15-2016-00002
GINOP
K108308
OTKA
123975
OTKA
ÚNKP-17-3
ÚNKP
ÚNKP-17-4
ÚNKP
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Intézményi repozitóriumban (DEA) tárolt változat
Borító:

7.

001-es BibID:BIBFORM085888
035-os BibID:(cikkazonosító)2124 (scopus)85082286798 (wos)000529890200220
Első szerző:Wachal Zita
Cím:Retinoprotection by BGP-15, a Hydroximic Acid Derivative, in a Type II Diabetic Rat Model Compared to Glibenclamide, Metformin, and Pioglitazone / Wachal Zita, Bombicz Mariann, Priksz Dániel, Hegedűs Csaba, Kovács Diána, Szabó Adrienn Mónika, Kiss Rita, Németh József, Juhász Béla, Szilvássy Zoltán, Varga Balázs
Dátum:2020
ISSN:1661-6596 1422-0067
Megjegyzések:High blood glucose and the consequential ischemia-reperfusion (I/R) injury damage vessels of the retina, deteriorating its function, which can be clearly visualized by electroretinography (ERG). The aim of the present study was to evaluate the possible retinoprotective effects of systemic BGP-15, an emerging drug candidate, in an insulin resistant animal model, the Goto-Kakizaki rat, and compare these results with well-known anti-diabetics such as glibenclamide, metformin, and pioglitazone, which even led to some novel conclusions about these well-known agents. Experiments were carried out on diseased animal model (Goto-Kakizaki rats). The used methods include weight measurement, glucose-related measurements?like fasting blood sugar analysis, oral glucose tolerance test, hyperinsulinemic euglycemic glucose clamp (HEGC), and calculations of different indices from HEGC results?electroretinography and Western Blot. Beside its apparent insulin sensitization, BGP-15 was also able to counteract the retina-damaging effect of Type II diabetes comparable to the aforementioned anti-diabetics. The mechanism of retinoprotective action may include sirtuin 1 (SIRT1) and matrix metalloproteinase 9 (MMP9) enzymes, as BGP-15 was able to elevate SIRT1 and decrease MMP9 expression in the eye. Based on our results, this emerging hydroximic acid derivative might be a future target of pharmacological developments as a potential drug against the harmful consequences of diabetes, such as diabetic retinopathy.
Tárgyszavak:Orvostudományok Elméleti orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
electroretinography (ERG)
Goto-Kakizaki rat
pioglitazone
metformin
glibenclamide
BGP
diabetic retinopathy
Megjelenés:International Journal Of Molecular Sciences. - 21 : 6 (2020), p. 1-19. -
További szerzők:Bombicz Mariann (1987-) (gyógyszerész) Priksz Dániel (1989-) (farmakológus) Hegedűs Csaba (1983-) (Molekuláris biológus, Cera-Med Kft. Debrecen) Kovács Diána Klára (1985-) (Molekuláris biológus) Szabó Adrienn Mónika (1982-) (orvos) Kiss Rita (1974-) (laboratóriumi diagnosztika szakorvos) Németh József (1954-) (vegyész, analitikus) Juhász Béla (1978-) (kísérletes farmakológus) Szilvássy Zoltán (1957-) (belgyógyász, farmakológus, klinikai farmakológus) Varga Balázs (1984-) (kísérletes farmakológus)
Pályázati támogatás:GINOP-2.3.2-15-2016-00043
GINOP
EFOP-3.6.3-VEKOP-16-2017-00009
EFOP
NKFIH-1150-6/2019
NKFIH
Internet cím:Szerző által megadott URL
DOI
Intézményi repozitóriumban (DEA) tárolt változat
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