Levente Czeglédi

Dr. Levente Czeglédi


Research Focus & Metrics

Academic Career Length

24Years (2003-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

View All Publications
21 February 2020 in Animals
Verified
Journal Article
Open access
PDF file
BCBrigitta Csernus
Brigitta Csernus
SBSándor Biró
Sándor Biró
LBLászló Babinszky
László Babinszky
IKIstvan Komlosi
Istvan Komlosi
AJAndrás Jávor
András Jávor
LCLevente Czeglédi
Levente Czeglédi
This study was conducted to investigate the effect of carotenoid, oligosaccharide and anthocyanin supplementation in broiler diets under Escherichia coli lipopolysaccharide (LPS) challenge. Ross 308 chickens were fed 5 diets: basal diet (control diet), diet supplemented with β-glucan in 0.05% (positive control) and diets with 0.5% carotenoid-, oligosaccharide- or anthocyanin contents. On the 26th days of age, chickens were challenged intraperitoneally 2 mg LPS per kg of body weight. 12 h after injection, birds were euthanized, then spleen and ileum samples were collected. LPS induced increased relative mRNA expression of splenic (p = 0.0445) and ileal (p = 0.0435) interleukin-1β (IL-1β), which was lower in the spleen in carotenoid (p = 0.0114), oligosaccharide (p = 0.0497) and anthocyanin (p = 0.0303)-treated chickens compared to LPS-injected control birds. Dietary supplementation of carotenoids also decreased relative gene expression of splenic interleukin-6 (IL-6) (p = 0.0325). In the ileum, β-glucan supplementation showed lower relative mRNA expression of toll-like receptor 5 (TLR-5) (p = 0.0387) compared to anthocyanin treatment. Gene expression of both splenic and ileal interferon-α (IFN-α), interferon-γ (IFN-γ), toll-like receptor 4 (TLR-4) and toll-like receptor 5 (TLR-5) were not influenced by dietary supplements. In conclusion, carotenoids, oligosaccharides and anthocyanins could partially mitigate the immune stress caused by LPS challenge. All of the compounds impacted longer villus height (p < 0.0001), villus height:crypt depth ratios were higher after β-glucan (p < 0.0001) and anthocyanin (p = 0.0063) supplementations and thickened mucosa was observed in β-glucan (p < 0.0001), oligosaccharide (p < 0.0001) and anthocyanin (p = 0.048) treatments. All of these findings could represent a more effective absorption of nutrients.

7 December 2015 in Journal of Molecular Endocrinology
Verified
Journal Article
Closed access
PDF file
KPKrisztina Pohóczky
Krisztina Pohóczky
JKJózsef Kun
József Kun
BSBálint Szalontai
Bálint Szalontai
ÉSÉva Szőke
Éva Szőke
ÉSÉva Sághy
Éva Sághy
Zsuzsanna HelyesZsuzsanna Helyes
Zsuzsanna Helyes
Transient receptor potential ankyrin 1 (TRPA1) and vanilloid 1 (TRPV1) receptors expressed predominantly in sensory nerves are activated by inflammatory stimuli and mediate inflammation and pain. Although they have been shown in the human endometrium, their regulation and function are unknown. Therefore, we investigated their estrogen- and progesterone-dependent alterations in the rat endometrium in comparison with the estrogen-regulated inflammatory cytokine macrophage migration inhibitory factor (MIF). Four-week-old (sexually immature) and four-month-old (sexually mature) female rats were treated with the non-selective estrogen receptor (ER) agonist diethylstilboestrol (DES), progesterone and their combination, or ovariectomized. RT-PCR and immunohistochemistry were performed to determine mRNA and protein expression levels respectively. Channel function was investigated with ratiometric [Ca2+]imeasurement in cultured primary rat endometrial cells. Both TRP receptors and MIF were detected in the endometrium at mRNA and protein levels, and their localizations were similar. Immunostaining was observed in the immature epithelium, while stromal, glandular and epithelial positivity were observed in adults. Functionally active TRP receptor proteins were shown in endometrial cells by activation-induced calcium influx. In adults,Trpa1andTrpv1mRNA levels were significantly up-regulated after DES treatment. TRPA1 increased after every treatment, but TRPV1 remained unchanged following the combined treatment and ovariectomy. In immature rats, DES treatment resulted in increased mRNA expression of both channels and elevated TRPV1 immunopositivity. MIF expression changed in parallel with TRPA1/TRPV1 in most cases. DES up-regulatedTrpa1,Trpv1andMifmRNA levels in endometrial cell cultures, but 17β-oestradiol having ERα-selective potency increased only the expression ofTrpv1. We provide the first evidence for TRPA1/TRPV1 expression and their estrogen-induced up-regulation in the rat endometrium in correlation with the MIF.

1 December 2008 in Phytopathology®
Verified
Journal Article
Open access
Kálmán Zoltán VáczyKálmán Zoltán Váczy
Kálmán Zoltán Váczy
ESErzsébet Sándor
Erzsébet Sándor
LKLevente Karaffa
Levente Karaffa
EFErzsébet Fekete
Erzsébet Fekete
ÉFÉva Fekete
Éva Fekete
CKChristian P. Kubicek
Christian P. Kubicek
Botrytis cinerea (anamorph of Botryotinia fuckeliana) causes gray mold on a high number of crop plants including grapes. In this study, we investigated the genetic properties of a grape pathogenic population of B. cinerea in the area of Eger, Hungary. A total of 109 isolates from 12 areas were sampled. Based on the sequence of the β-tubulin (tub1) locus, they all belong to group II, a phylogenetic species within B. cinerea. Seventy-four isolates were classified as transposa, with both the Flipper and Boty transposons, and 10 were classified as vacuma, lacking both transposons. The remaining isolates contained either only Flipper (13) or Boty (12). Multilocus analysis of sequences from tub1 and two other loci (elongation factor 1-alpha, tef1, and a minisatellite from the intron of an ATPase, MSB1) led to poor phylogenetic resolution of strains in individual clades. Analysis of five microsatellites (Bc2, Bc3, Bc5, Bc6, and Bc10) resulted in 55 microsatellite haplotypes within the 109 strains. No correlation was detected among individual haplotypes and the presence/absence of Flipper and/or Boty, the geographic origin, or the year of isolation. Application of the index of association, the chi-square test, and the phi test consistently indicated that the population of Hungarian isolates of B. cinerea undergoes sexual reproduction. However, the index of association test suggested the presence of some clonality, and the fixation index showed a low or occasionally moderate level of fixation in the Flipper populations. We conclude that the B. cinerea populations in Hungary consist of a strongly recombining group II phylogenetic species.

15 March 2007 in Journal of Animal Physiology and Animal Nutrition
Verified
Journal Article
Closed access
PDF file
AGA. Gutzwiller
A. Gutzwiller
LCLevente Czeglédi
Levente Czeglédi
PSP. Stoll
P. Stoll
LBL. Bruckner
L. Bruckner

22 February 2016 in Journal of Animal Physiology and Animal Nutrition
Verified
Journal Article
Closed access
PDF file
GGG. Gulyas
G. Gulyas
Éva CsőszÉva Csősz
Éva Csősz
JPJ. Prokisch
J. Prokisch
AJA. Javor
A. Javor
MMM. Mezes
M. Mezes
LCLevente Czeglédi
Levente Czeglédi

15 March 2017 in Journal of Animal Physiology and Animal Nutrition
Verified
Journal Article
Closed access
PDF file
ASAdam Simon
Adam Simon
AJA. Jávor
A. Jávor
PBP. Bai
P. Bai
JOJ. Oláh
J. Oláh
LCLevente Czeglédi
Levente Czeglédi