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001-es BibID:	BIBFORM077996
035-os BibID:	(PMID)30952206
Első szerző:	Móré Elek Csaba (pszichiáter szakorvos)
Cím:	Altered irisin/BDNF axis parallels excessive daytime sleepiness in obstructive sleep apnea patients / Csaba E. More, Csaba Papp, Szilvia Harsanyi, Rudolf Gesztelyi, Angela Mikaczo, Gabor Tajti, Laszlo Kardos, Ildiko Seres, Hajnalka Lorincz, Krisztina Csapo, Judit Zsuga
Dátum:	2019
ISSN:	1465-9921
Megjegyzések:	Study objectives: Obstructive sleep apnea hypopnea syndrome (OSAHS) is a sleep-related breathing disorder, characterized by excessive daytime sleepiness (EDS), paralleled by intermittent collapse of the upper airway. EDS may be the symptom of OSAHS per se but may also be due to the alteration of central circadian regulation. Irisin is a putative myokine and has been shown to induce BDNF expression in several sites of the brain. BDNF is a key factor regulating photic entrainment and consequent circadian alignment and adaptation to the environment. Therefore, we hypothesized that EDS accompanying OSAHS is reflected by alteration of irisin/BDNF axis. Methods: Case history, routine laboratory parameters, serum irisin and BDNF levels, polysomnographic measures and Epworth Sleepiness Scale questionnaire (ESS) were performed in a cohort of OSAHS patients (n=69). Simple and then multiple linear regression was used to evaluate data. Results: We found that EDS reflected by the ESS is associated with higher serum irisin and BDNF levels; ?: 1.53; CI: 0.35, 6.15; p=0.012 and ?: 0.014; CI: 0.0.005, 0.023; p=0.02, respectively. Furthermore, influence of irisin and BDNF was significant even if the model accounted for their interaction (p=0.006 for the terms serum irisin, serum BDNF and their interaction). Furthermore, a concentration-dependent effect of both serum irisin and BDNF was evidenced with respect to their influence on the ESS. Conclusions: These results suggest that the irisin-BDNF axis influences subjective daytime sleepiness in OSAS patients reflected by the ESS. These results further imply the possible disruption of the circadian regulation in OSAHS. Future interventional studies are needed to confirm this observation.
Tárgyszavak:	Orvostudományok Klinikai orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban irisin BDNF sleep apnea circadian rhythm
Megjelenés:	Respiratory Research. - 20 : 1 (2019), p. 1-15. -
További szerzők:	Papp Csaba (1966-) (aneszteziológus és intenzív terápiás szakorvos) Kolozsváriné Harsányi Szilvia (1983-) (okleveles egészségpolitikai szakértő) Gesztelyi Rudolf (1969-) (kísérletes farmakológus) Mikáczó Angéla (1980-) (tüdőgyógyász) Tajti Gábor (1988-) (gyógyszerész, biofizikus, sejtbiológus) Kardos László (1970-) (megelőző orvostan és népegészségtan szakorvos) Seres Ildikó (1954-) (biokémikus) Lőrincz Hajnalka (1986-) (biológus) Csapó Krisztina (1979-) (neurológus) Zsuga Judit (1973-) (neurológus, pszichoterapeuta, egészségügyi szakmanager)
Pályázati támogatás:	EFOP-3.6.2-16-2017-00009 EFOP Establishing Thematic Scientific and Cooperation Network for Clinical Research GINOP-2.3.2-15-2016-00005 GINOP 2017-1.2.1-NKP-2017-00002 Egyéb
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001-es BibID:	BIBFORM132951
035-os BibID:	(scopus)105018892821 (wos)001594833500001
Első szerző:	Rácz Lilla
Cím:	Modulation of Paraoxonase 1 Activity and Asymmetric Dimethylarginine by Immunomodulatory Therapies in Multiple Sclerosis / Racz Lilla, Lorincz Hajnalka, Seres Ildiko, Kardos Laszlo, Paragh Gyorgy, Csepany Tunde
Dátum:	2025
ISSN:	1661-6596 1422-0067
Megjegyzések:	Background: Neurodegeneration is present from the earliest stages of multiple sclerosis [MS], and oxidative stress together with mitochondrial dysfunction are key contributors to neuronal injury and disease progression. Objective: To investigate the role of the antioxidant enzyme paraoxonase 1 (PON1) and serum asymmetric dimethylarginine (ADMA) levels in MS across different disease subtypes and immunomodulatory treatments. Methods: Serum lipid levels and PON1 activity were measured and compared by disease subtype and treatment in a single-center MS cohort (N = 262; CIS = 10, RRMS = 208, PPMS = 19, SPMS = 25; 110 untreated, 152 treated) and in 91 healthy controls. ADMA levels were assessed in sera from 79 MS patients (19 untreated, 60 treated) and 31 age-matched controls. Results: Median serum paraoxonase (PON) and arylesterase (ARE) activity levels were 83.8 and 127.2 IU/L in MS patients versus 85.9 and 136.9 IU/L in controls, with no significant difference for PON (p = 0.191) but a significant reduction in ARE [p = 0.003]. PON activity differed significantly among disease subtypes (p = 0.023), with the highest levels in CIS. PON and ARE activity also varied across treatment groups (p = 0.038 and p = 0.034, respectively), with longitudinal analysis indicating a measurable effect of immunomodulatory therapy on PON activity at 10 years (p = 0.0136). Significant differences in enzyme activity were observed between untreated and interferon-treated patients (PON p = 0.0055, ARE p = 0.0001), with trends toward differences in ARE under natalizumab and fingolimod. ADMA levels were lower in MS patients than controls (p < 0.0001) and differed among treatment subgroups (natalizumab, dimethyl fumarate, glatiramer acetate, untreated RRMS). Conclusions: PON1 activity and ADMA levels differ between MS subgroups and under immunomodulatory treatments. Long-term therapy was associated with increased PON1 activity, while highly effective immunomodulators reduced ADMA levels. These changes may contribute to the treatment-related reduction in disease activity and attenuation of neurodegenerative processes in MS.
Tárgyszavak:	Orvostudományok Klinikai orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban folyóiratcikk multiple sclerosis oxidative stress paraoxonase 1 asymmetric dimethylarginine immunomodulatory treatment
Megjelenés:	International Journal Of Molecular Sciences. - 26 : 19 (2025), p. 1-14. -
További szerzők:	Lőrincz Hajnalka (1986-) (biológus) Seres Ildikó (1954-) (biokémikus) Kardos László (1970-) (megelőző orvostan és népegészségtan szakorvos) Paragh György (1953-) (belgyógyász) Csépány Tünde (1956-) (neurológus, pszichiáter)
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