Unit:
Faculty of MedicineLibrary of the School of Health Sciences
Author:
Galanis Dimitrios
Dissertation committee:
Σουλτάνης Κωνσταντίνος, Αναπληρωτής Καθηγητής, Ιατρική Σχολή, ΕΚΠΑ, Επιβλέπων
Δοντά Ισμήνη – Νίκη, Καθηγήτρια, Ιατρική Σχολή, ΕΚΠΑ
Μητάκου Σοφία, Καθηγήτρια, Τμήμα Φαρμακευτικής, ΕΚΠΑ
Σκαλτσούνης Λέανδρος, Καθηγητής, Τμήμα Φαρμακευτικής, ΕΚΠΑ
Μουτσάτσου – Λαδικού Παρασκευή, Καθηγήτρια, Ιατρική Σχολή, ΕΚΠΑ
Νικολάου Βασίλειος, Αναπληρωτής Καθηγητής, Ιατρική Σχολή, ΕΚΠΑ
Μαυρογένης Ανδρέας, Αναπληρωτής Καθηγητής, Ιατρική Σχολή, ΕΚΠΑ
Original Title:
Μελέτη της επίδρασης του εκχυλίσματος από το φυτό Glycyrrhiza glabra (γλυκύριζα) στην πειραματικά επαγόμενη οστεοπόρωση
Translated title:
Study of the effect of the extract from the plant Glycyrrhiza glabra (licorice) on the experimental induced osteoporosis
Summary:
Objective: The aim of this study was to evaluate the potential effect of the methanolic extract of plant Glycyrrhiza glabra roots on bone mineral density and femoral bone strength of ovariectomized rats. Methods: Thirty 10-month-old Wistar rats were randomly separated into three groups of ten, Control, Ovariectomy and Ovariectomy-plus-Glycyrrhiza in their drinking water. Total and proximal tibial bone mineral density was measured in all groups before ovariectomy (baseline) and after 3 and 6 months post ovariectomy. Three-point-bending of the femurs and uterine weight and histology were examined at the end of the study. Results: No significant difference was noted in bone density percentage change of total tibia from baseline to 3 months between Control and Ovariectomy-plus-Glycyrrhiza groups (+5.31%±4.75 and +3.30%±6.31 respectively, P=non significant), and of proximal tibia accordingly (+5.58% ± 6.92 and +2.61% ± 13.62, P=non significant) demonstrating a strong osteoprotective effect. There was notable difference in percentage change of total tibia bone density from baseline to 6 months between groups Ovariectomy and Ovariectomy-plus-Glycyrrhiza (−13.03%±5.11 and −0.84%±7.63 respectively, P<0.005), and of proximal tibia accordingly (−27.9%±3.69 and −0.81%±14.85 respectively, P<0.001), confirming the protective effect of Glycyrrhiza glabra extract in preserving bone density of the Ovariectomy-plus-Glycyrrhiza group. Three-point-bending did not reveal any statistically significant difference between Ovariectomy and Ovariectomy-plus-Glycyrrhiza groups. Uterine weights of the Ovariectomy-plus-Glycyrrhiza group ranged between the other two groups with no statistically significant difference to each. Conclusions: Glycyrrhiza glabra root extract notably protected tibial bone mineral density loss in Ovariectomy-plus-Glycyrrhiza rats in comparison with ovariectomized rats, but did not improve biomechanical strength.
Main subject category:
Health Sciences
Keywords:
Rat, Osteoporosis, Ovariectomy, Absorptiometry, Three-point- bending, Preclinical research
Number of references:
119
