Dimitra Karageorgou

Dr. Dimitra Karageorgou

orcid

Research Focus & Metrics

Academic Career Length

9Years (2018-Present)

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

Representative Publications

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8 June 2019 in The American Journal of Clinical Nutrition
Verified
Journal Article
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LPLaura Pimpin
Laura Pimpin
SKSarah Kranz
Sarah Kranz
ELEnju Liu
Enju Liu
MSMasha Shulkin
Masha Shulkin
DKDimitra Karageorgou
Dimitra Karageorgou
DMDariush Mozaffarian
Dariush Mozaffarian
Child stunting is a major public health problem, afflicting 155 million people worldwide. Lack of animal-source protein has been identified as a risk, but effects of animal protein supplementation are not well established. The aim of this study was to investigate effects of animal protein supplementation in mothers, preterm infants, and term infants/children on birth and growth outcomes. PubMed, EMBASE, Cochrane library, Web of Science, Cumulative Index of Nursing and Allied Health Literature, and Latin American and Caribbean Health Sciences Literature were searched for randomized controlled trials of animal protein supplementation in mothers or infants and children (≤age 5 y), evaluating measures of anthropometry (≤age 18 y). Main outcomes included birth weight, low birth weight, small for gestational age at birth; height, height-for-age, weight, weight-for-age, weight-for-length, stunting, and wasting ≤18 y of age. Data were extracted independently in duplicate, and findings pooled using inverse variance meta-analysis. Heterogeneity was explored using I2, stratified analysis, and meta-regression, and publication bias by funnel plots, Egger's test, and fill/trim methods. Of 6808 unique abstracts and 357 full-text articles, 62 trials were included. The 62 trials comprised over 30,000 participants across 5 continents, including formula-based supplementation in infants and food-based supplementation in pregnancy and childhood. Maternal supplementation increased birth weight by 0.06 kg, and both formula and food-based supplementation in term infants/young children increased weight by ≤0.14 kg. Neither formula nor food-based supplementation for term infants/young children increased height, whereas the height-for-age z-score was increased in the food-based (+0.06 z-score) but not formula-based (−0.11 z-score) trials reporting this outcome. In term infants, the weight-for-length z-score was increased in trials of formula (+0.24 z-score) and food supplementation (+0.06 z-score), whereas food supplementation was also associated with reduced odds of stunting (−13%). Supplementation of protein from animal-source foods generally increased weight and weight-for-length in children, but with more limited effects on other growth outcomes such as attained height.

19 January 2024 in Public Health Nutrition
Verified
Journal Article
Open access
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DKDimitra Karageorgou
Dimitra Karageorgou
LCLaura Lara Castor
Laura Lara Castor
VQVictoria Padula de Quadros
Victoria Padula de Quadros
RSRita Ferreira de Sousa
Rita Ferreira de Sousa
BHBridget Anna Holmes
Bridget Anna Holmes
RMRenata Micha
Renata Micha
Objective: The Global Dietary Database (GDD) expanded its previous methods to harmonise and publicly disseminate individual-level dietary data from nutrition surveys worldwide. Design: Analysis of cross-sectional data. Setting: Global. Participants: General population. Methods: Comprehensive methods to streamline the harmonisation of primary, individual-level 24-h recall and food record data worldwide were developed. To standardise the varying food descriptions, FoodEx2 was used, a highly detailed food classification and description system developed and adapted for international use by European Food Safety Authority (EFSA). Standardised processes were developed to: identify eligible surveys; contact data owners; screen surveys for inclusion; harmonise data structure, variable definition and unit and food characterisation; perform data checks and publicly disseminate the harmonised datasets. The GDD joined forces with FAO and EFSA, given the shared goal of harmonising individual-level dietary data worldwide. Results: Of 1500 dietary surveys identified, 600 met the eligibility criteria, and 156 were prioritised and contacted; fifty-five surveys were included for harmonisation and, ultimately, fifty two were harmonised. The included surveys were primarily nationally representative (59 %); included high- (39 %), upper-middle (21 %), lower-middle (27 %) and low- (13 %) income countries; usually collected multiple recalls/ records (64 %) and largely captured both sexes, all ages and both rural and urban areas. Surveys from low- and lower-middle v. high- and upper-middle income countries reported fewer nutrients (median 17 v. 30) and rarely included nutrients relevant to diet-related chronic diseases, such as n-3 fatty acids and Na. Conclusions: Diverse 24-h recalls/records can be harmonised to provide highly granular, standardised data, supporting nutrition programming, research and capacity development worldwide.

1 June 2019 in Public Health
Verified
Journal Article
Closed access
DKDimitra Karageorgou
Dimitra Karageorgou
EMEmmanuella Magriplis
Emmanuella Magriplis
AMA.V. Mitsopoulou
A.V. Mitsopoulou
IDIoannis Dimakopoulos
Ioannis Dimakopoulos
IBI. Bakogianni
I. Bakogianni
ERE. Roma
E. Roma

13 November 2019 in Lupus
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Journal Article
Closed access
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EPE Papadaki
E Papadaki
EKEleftherios Kavroulakis
Eleftherios Kavroulakis
George BertsiasGeorge Bertsias
George Bertsias
AFAntonis Fanouriakis
Antonis Fanouriakis
DKDimitra Karageorgou
Dimitra Karageorgou
PSP Simos
P Simos
The study examined the hypothesis that hypoperfusion in brain areas known to be involved in emotional disturbances in primary psychiatric disorders is also linked to emotional difficulties in systemic lupus erythematosus (SLE) and that these are not secondary to the physical and social burden incurred by the disease. Nineteen SLE patients without overt neuropsychiatric manifestations (non-NPSLE), 31 NPSLE patients, and 23 healthy controls were examined. Dynamic susceptibility contrast MRI was used and cerebral blood flow and cerebral blood volume values were estimated in six manually selected regions of interest of brain regions suspected to play a role in anxiety and depression (dorsolateral prefrontal cortex, ventromedial prefrontal cortex, anterior cingulate cortex, hippocampi, caudate nuclei and putamen). NPSLE patients reported high rates of anxiety and depression symptomatology. Significantly reduced cerebral blood flow and cerebral blood volume values were detected in the NPSLE group compared to healthy controls in the dorsolateral prefrontal cortex and ventromedial prefrontal cortex, bilaterally. Within the NPSLE group, anxiety symptomatology was significantly associated with lower perfusion in frontostriatal regions and in the right anterior cingulate gyrus. Importantly, the latter associations appeared to be specific to anxiety symptoms, as they persisted after controlling for depression symptomatology and independent of the presence of visible lesions on conventional MRI. In conclusion, hypoperfusion in specific limbic and frontostriatal regions is associated with more severe anxiety symptoms in the context of widespread haemodynamic disturbances in NPSLE.

20 April 2020 in Public Health Nutrition
Verified
Journal Article
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AMAnastasia-Vasiliki Mitsopoulou
Anastasia-Vasiliki Mitsopoulou
EMEmmanuella Magriplis
Emmanuella Magriplis
IDIoannis Dimakopoulos
Ioannis Dimakopoulos
DKDimitra Karageorgou
Dimitra Karageorgou
IBIoanna Bakogianni
Ioanna Bakogianni
Antonis ZampelasAntonis Zampelas
Antonis Zampelas
Objective: To assess the usual dietary intake of twenty micronutrients and to identify their food sources in a representative sample of Greek children and adolescents.Design: Cross-sectional data from the Hellenic National Nutrition and Health Survey (HNNHS). Vitamin and mineral intakes were estimated from two 24 h dietary recalls by sex and age groups. Estimates were calculated using the National Research Council method and the statistical software package Stata13 to account for within- and between-person variations. The prevalence of nutrients’ inadequacy among sample was estimated using the estimated average requirement (EAR) cut-point method. The contribution of food groups to nutrient intake was estimated to identify micronutrients food sources.Setting: Greece.Participants: Children and adolescents aged 1–19 years (n 577) who provided sufficient and plausible 24-h recalls.Results: A substantial percentage of children and adolescents had insufficient intakes of numerous micronutrients. Usual intake of vitamins D, K and potassium was inadequate in practically all individuals. Vitamin A, folate, Ca and Mg were also insufficient to a considerable percentage, especially in girls aged 14–18 years. Pantothenic acid was highlighted as nutrient of interest since only one out of ten boys 9–13 years and girls 14–19 years had intake above the EAR. Data demonstrated that food groups highly ranked in energy contribution were not necessarily important sources of micronutrients.Conclusions: Results suggest that micronutrient density of Greek children and adolescents’ diet should be improved. These findings might be used by public health policy-makers to help young people optimise their food choices in Greece.

1 August 2021 in Public Health
Verified
Journal Article
Closed access
EMEmmanuella Magriplis
Emmanuella Magriplis
DPD. Panagiotakos
D. Panagiotakos
EPEmilia Papakonstantinou
Emilia Papakonstantinou
AMA.-V. Mitsopoulou
A.-V. Mitsopoulou
DKDimitra Karageorgou
Dimitra Karageorgou
ERE. Roma
E. Roma