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001-es BibID:BIBFORM099030
035-os BibID:(Scopus)85122905153 (WOS)000754954100007
Első szerző:Képes Zita (orvos)
Cím:Homocysteine-related alterations of [18F]FDG brain pattern in metabolic diseases / Zita Képes, Csaba Aranyi, Attila Forgács, Ferenc Nagy, Kornél Kukuts, Regina Esze, Sándor Somodi, Miklós Káplár, József Varga, Miklós Emri, Ildikó Garai
Dátum:2021
ISSN:1790-5427
Megjegyzések:Since hyperhomocysteinaemia (HHcys) is implicated as a risk factor for the development of neurodegeneration, and is associated with the development of metabolic diseases, we aimed at analysing the effect of homocysteine (Hcys) on regional fluorine-18-fluorodeoxyglucose (18F-FDG) brain metabolism in 51 controlled type 2 diabetic and in 48 non-DM obese participants. Plasma Hcys levels were measured by an immunoassay. Homocysteine-related 18F-FDG regional brain metabolism was evaluated applying 18F-FDG PET/CT using magnetic resonance imaging (MRI)-based brain template for Statistical Parametric Mapping (SPM) analysis. Homocysteine-related decreased 18F-FDG uptake was shown in the right middle temporal gyrus in the whole population. Diabetics with Hcys above the reference limit expressed decreased glucose metabolism in the left calcarine cortex compared to the obese with HHcys. Regional metabolic alterations evoked on the basis of HHcys draw attention to the potential risk of neurodegeneration caused by metabolic disturbances.
Tárgyszavak:Orvostudományok Klinikai orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Diabetes
Obesity
(18)-F-FDG PET/CT
Homocysteine
Neurodegeneration
Megjelenés:Hellenic Journal of Nuclear Medicine. - 24 : 3 (2021), p. 222-227. -
További szerzők:Aranyi Sándor Csaba (1988-) (programtervező informatikus) Forgács Attila (1985-) (fizikus) Nagy Ferenc (1984-) (fizikus) Kukuts Kornél Esze Regina Somodi Sándor (1977-) (belgyógyász) Káplár Miklós (1965-) (belgyógyász, diabetológus) Varga József (1955-) (fizikus) Emri Miklós (1962-) (fizikus) Garai Ildikó (1966-) (radiológus)
Pályázati támogatás:National Grant No. GINOP-2.1.1-15-2015-00609
GINOP
National Brain Research Program No. 2017-1.2.1-NKP-2017-00002
Egyéb
Internet cím:Intézményi repozitóriumban (DEA) tárolt változat
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2.

001-es BibID:BIBFORM098876
035-os BibID:(WoS)000730245900001 (Scopus)85121287053
Első szerző:Képes Zita (orvos)
Cím:Imaging with [99mTc]HMPAO - a novel perspective : investigation of [99mTc] HMPAO leg muscle uptake in metabolic diseases / Zita Képes, Márton Mikó, Kornél Kukuts, Regina Esze, Sándor Barna, Sándor Somodi, Miklós Káplár, József Varga, Ildikó Garai
Dátum:2023
ISSN:0284-1851
Megjegyzések:Background: Sensitive imaging modalities in the diagnosis of microcircular complications of the lower extremities induced by metabolic diseases are becoming a focus of interest. Purpose: To investigate the [99mTc]HMPAO uptake of the legs in type 2 diabetes mellitus (T2DM) and obesity, and to search for associations with clinical parameters and nerve conducting studies. Material and Methods: A total of 57 patients with controlled T2DM and 46 obese participants without DM were enrolled in the study. [99mTc]HMPAO SPECT/CT examinations were performed to evaluate the radiopharmaceutical accumulation of the legs. For the quantitative assessment of tracer uptake, standardized uptake value (SUVpeak) was measured in fixed spheric volumes of interest placed on both sural muscles on the attenuation-corrected images. Measurement of current perception threshold applying Neurometer (NM-01/CPT) was used to evaluate peripheral nerve dysfunction. Laboratory parameters assessing the glucose homeostasis of the study participants were also measured. Results: In the diabetic group, significantly lower leg SUV values were detected compared to the non-DM obese group (median: 0.517 vs. 0.607; P < 0.001). Body mass index (BMI) (P < 0.0001), age (P=0.0283), HbA1c (P =0.0068), and glucose level (P =0.0044) proved to be significant predictors of muscle tracer uptake. Neurometer studies showed positive correlation with HbA1c levels in the T2DM group (P=0.0002). Conclusion: We assume that [99mTc]HMPAO uptake of leg muscles is associated with microcirculation, so quantitative [99mTc]HMPAO SPECT/CT might be a sensitive method for evaluating lower limb microvascular alterations. BMI, age, HbA1c, and glucose level may be significant predictors of peripheral vascular abnormalities triggered by metabolic disturbances. Keywords: [99mTc]HMPAO, lower extremity, microcirculation, polyneuropathy, obesity, type 2 diabetes mellitus
Tárgyszavak:Orvostudományok Klinikai orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
[99mTc]HMPAO
lower extremity
microcirculation
polyneuropathy
obesity
type 2 diabetes mellitus
Megjelenés:Acta Radiologica. - 64 : 1 (2023), p. 187-194. -
További szerzők:Mikó Márton (1990-) Kukuts Kornél Esze Regina Barna Sándor (1982-) (kutató orvos) Somodi Sándor (1977-) (belgyógyász) Káplár Miklós (1965-) (belgyógyász, diabetológus) Varga József (1955-) (fizikus) Garai Ildikó (1966-) (radiológus)
Pályázati támogatás:2.1.1-15-2015-00609
GINOP
Internet cím:Szerző által megadott URL
DOI
Intézményi repozitóriumban (DEA) tárolt változat
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3.

001-es BibID:BIBFORM091785
035-os BibID:(cikkazonosító)3 (WOS)000672838300001 (Scopus)85100999105
Első szerző:Képes Zita (orvos)
Cím:Glucose-level dependent brain hypometabolism in type 2 diabetes mellitus and obesity / Z. Képes, Cs. Aranyi, A. Forgács, F. Nagy, K. Kukuts, Zs. Hascsi, R. Esze, S. Somodi, M. Káplár, J. Varga, M. Emri, I. Garai
Dátum:2021
Megjegyzések:Glucose-level dependent brain hypometabolism in type 2 diabetes mellitus and obesity Background: Metabolic syndrome and its individual components lead to wide-ranging consequences, many of which affect the central nervous system. In this study, we compared the [18F]FDG regional brain metabolic pattern of participants with type 2 diabetes mellitus (T2DM) and non-DM obese individuals. Methods: In our prospective study 51 patients with controlled T2DM (ages 50.6 ? 8.0 years) and 45 non-DM obese participants (ages 52.0 ? 9.6 years) were enrolled. Glucose levels measured before PET/CT examination (pre-PET glucose) as well as laboratory parameters assessing glucose and lipid status were determined. NeuroQ application (NeuroQTM 3.6, Syntermed, Philips) was used to evaluate regional brain metabolic differences. [18F]FDG PET/CT (AnyScan PC, Mediso) scans, estimating brain metabolism were transformed to MNI152 brain map after T1 registration and used for SPM-based group comparison of brain metabolism corrected for pre-PET glucose, and correlation analysis with laboratory parameters. Results: NeuroQ analysis did not reveal significant regional metabolic defects in either group. Voxel-based group comparison revealed significantly (pFWE<0.05) decreased metabolism in the region of the precuneus and in the right superior frontal gyrus (rSFG) in the diabetic group as compared to the obese patients. Data analysis corrected for pre-PET glucose level showed a hypometabolic difference only in the rSFG in T2DM. Voxel-based correlation analysis showed significant negative correlation of the metabolism in the following brain regions with pre-PET glucose in diabetes: precuneus, left posterior orbital gyrus, right calcarine cortex and right orbital part of inferior frontal gyrus; while in the obese group only the right rolandic (pericentral) operculum proved to be sensitive to pre-PET glucose level. Conclusions: To our knowledge this is the first study to perform pre-PET glucose level corrected comparative analysis of brain metabolism in T2DM and obesity. We also examined the pre-PET glucose level dependency of regional cerebral metabolism in the two groups separately. Large-scale future studies are warranted to perform further correlation analysis with the aim of determining the effects of metabolic disturbances on brain metabolism. Keywords: [18F]FDG, metabolism, brain, type 2 diabetes mellitus, obesity
Tárgyszavak:Orvostudományok Klinikai orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
[18F]FDG
metabolism
brain
type 2 diabetes mellitus
obesity
Megjelenés:European Journal of Hybrid Imaging. - 5 : 1 (2021), p. 1-15. -
További szerzők:Aranyi Sándor Csaba (1988-) (programtervező informatikus) Forgács Attila (1985-) (fizikus) Nagy Ferenc (1984-) (fizikus) Kukuts Kornél Hascsi Zsolt Esze Regina Somodi Sándor (1977-) (belgyógyász) Káplár Miklós (1965-) (belgyógyász, diabetológus) Varga József (1955-) (fizikus) Emri Miklós (1962-) (fizikus) Garai Ildikó (1966-) (radiológus)
Pályázati támogatás:GINOP-2.1.1-15-2015-00609
GINOP
National Brain Research Program No. 2017-1.2.1-NKP-2017-00002.
Egyéb
Internet cím:Szerző által megadott URL
DOI
Intézményi repozitóriumban (DEA) tárolt változat
Borító:
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