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» Authors » George Tzortzis

George Tzortzis

Explore the profile of George Tzortzis including associated specialties, affiliations and a list of published articles. Areas
Snapshot
Articles 36
Citations 1408
Followers 0
Related Specialties
Microbiology
Biomedical Engineering
Nutritional Sciences
Top 10 Co-Authors
Glenn R Gibson
Jelena Vulevic
Dimitris Charalampopoulos
Adele Costabile
Michael T Cook
Vitaliy V Khutoryanskiy
Philip W J Burnet
Helene M Savignac
Aleksandra Juric
Ali Osman
Published In
Appl Microbiol Biotechnol
J Nutr
Am J Clin Nutr
Biomacromolecules
J Med Microbiol
Affiliations
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Recent Articles
1.
Impact of Combined Prebiotic Galacto-Oligosaccharides and -Derived Postbiotic on Gut Microbiota and HbA1c in Prediabetic Adults: A Double-Blind, Randomized, Placebo-Controlled Study
Beteri B, Barone M, Turroni S, Brigidi P, Tzortzis G, Vulevic J, et al.
Nutrients . 2024 Jul; 16(14). PMID: 39064648
The complex interactions between intestinal microbiota and metabolic disorders are well-documented, with implications for glucose metabolism, energy expenditure, and intestinal permeability. Prebiotics induce beneficial changes in gut microbiota composition in...
2.
Supplementation with postbiotic from BB091109 improves inflammatory status and endocrine function in healthy females: a randomized, double-blind, placebo-controlled, parallel-groups study
Motei D, Beteri B, Hepsomali P, Tzortzis G, Vulevic J, Costabile A
Front Microbiol . 2023 Dec; 14:1273861. PMID: 38075921
This study evaluated the effects of dietary supplementation with a postbiotic extract of BB091109 on pro-inflammatory cytokines levels and markers of endocrine function. A prospective, double-blind, placebo-controlled, randomized, single-centered, parallel...
3.
A Rare Case of Cervical Vagus Nerve Schwannoma in an Adult Patient
Tzortzis A, Dogantzis P, Koliakos N, Tsintzos S, Tzortzis G
Cureus . 2022 Jun; 14(5):e25211. PMID: 35747007
Schwannomas of the head and neck are relatively rare benign tumors that derive from the Schwann cells. Schwannomas are usually asymptomatic; however, tumors of bigger size may produce unspecific symptoms...
4.
Cervical Cystic Lymphangioma in an Adult Patient. A Case Report of a Rare Entity
Tzortzis A, Maniatakos V, Tsintzos S, Tzortzis G
Acta Medica (Hradec Kralove) . 2022 Mar; 64(4):224-226. PMID: 35285445
Cystic lymphangioma (CL) is a rare benign tumour that arises from the lymphatic vessels. The most common site of presentation is the posterior triangle of the neck. 90% of the...
5.
Layer-by-layer coating of alginate matrices with chitosan-alginate for the improved survival and targeted delivery of probiotic bacteria after oral administration
Cook M, Tzortzis G, Khutoryanskiy V, Charalampopoulos D
J Mater Chem B . 2020 Apr; 1(1):52-60. PMID: 32260612
The oral administration of probiotic bacteria has shown potential in clinical trials for the alleviation of specific disorders of the gastrointestinal tract. However, cells must be alive in order to...
6.
Effect of a prebiotic galactooligosaccharide mixture (B-GOS®) on gastrointestinal symptoms in adults selected from a general population who suffer with bloating, abdominal pain, or flatulence
Vulevic J, Tzortzis G, Juric A, Gibson G
Neurogastroenterol Motil . 2018 Aug; 30(11):e13440. PMID: 30109908
Background: Prebiotics exert beneficial effects upon gastrointestinal (GI) environment, but this is not always accompanied with a positive effect on GI symptoms. B-GOS® is a prebiotic with high selectivity toward...
7.
Effects of Prebiotics vs a Diet Low in FODMAPs in Patients With Functional Gut Disorders
Huaman J, Mego M, Manichanh C, Canellas N, Canueto D, Segurola H, et al.
Gastroenterology . 2018 Jul; 155(4):1004-1007. PMID: 29964041
Prebiotics and diets low in fermentable oligo-, di-, mono-saccharides and polyols (low-FODMAP diet) might reduce symptoms in patients with functional gastrointestinal disorders, despite reports that some nonabsorbable, fermentable meal products...
8.
Increased cortical neuronal responses to NMDA and improved attentional set-shifting performance in rats following prebiotic (B-GOS) ingestion
Gronier B, Savignac H, Di Miceli M, Idriss S, Tzortzis G, Anthony D, et al.
Eur Neuropsychopharmacol . 2017 Nov; 28(1):211-224. PMID: 29174530
We have previously shown that prebiotics (dietary fibres that augment the growth of indigenous beneficial gut bacteria) such as Bimuno galacto-oligosaccharides (B-GOS), increased N-methyl-D-aspartate (NMDA) receptor levels in the rat...
9.
In vitro fermentation of B-GOS: impact on faecal bacterial populations and metabolic activity in autistic and non-autistic children
Grimaldi R, Cela D, Swann J, Vulevic J, Gibson G, Tzortzis G, et al.
FEMS Microbiol Ecol . 2016 Nov; 93(2). PMID: 27856622
Children with autism spectrum disorders (ASD) often suffer gastrointestinal problems consistent with imbalances in the gut microbial population. Treatment with antibiotics or pro/prebiotics has been postulated to regulate microbiota and...
10.
Neonatal prebiotic (BGOS) supplementation increases the levels of synaptophysin, GluN2A-subunits and BDNF proteins in the adult rat hippocampus
Williams S, Chen L, Savignac H, Tzortzis G, Anthony D, Burnet P
Synapse . 2015 Dec; 70(3):121-4. PMID: 26682524
Compelling data suggest that perturbations in microbial colonization of the gut in early-life, influences neurodevelopment and adult brain function. If this is the case, then ensuring the growth of beneficial...