{"id":{"repo_id":"greece","oai_identifier":"oai:10442/0365"},"canonical_url":"https://search.dev.ndltd.org/etd/greece/oai:10442/0365","repository":{"repo_id":"greece","name":"Greek National Archive of PhD Theses","base_url":"https://phdtheses.ekt.gr/eadd_oai/request"},"display":{"title":"ΜΕΛΕΤΗ ΣΥΜΜΕΤΟΧΗΣ ΤΩΝ ΝΤΟΠΑΜΙΝΕΡΓΙΚΩΝ ΝΕΥΡΩΝΩΝ ΣΤΗΝ ΑΡΝΗΤΙΚΗ ΠΑΛΙΝΔΡΟΜΗ ΡΥΘΜΙΣΗ ΤΩΝ ΓΟΝΑΔΟΤΡΟΦΙΝΩΝ ΜΕ ΟΙΣΤΡΟΓΟΝΑ","abstract":"THE NEGATIVE FEEDBACK CONTROL OF OESTROGEN TO GONADOTROPIN SECRETION AND THE POSSIBILITY OF THE ACTIVATION OF DOPAMINERGIC NEURONS FOR ELICITING THIS OESTROGEN EFFECT HAS BEEN STUDIED IN 23 MENOPAUSE WOMEN. THE ADMINISTRATION OF OESTRADIOL BENZOATE (1 MGR I.M) RESULTED IN AN INITIAL DECLINE AT LH AND F.S.H. LEVELS.THESE INITIAL DECLINE BECAME STATISTICALLY SIGNIFICANT IN 6 HOUR AND 8 HOUR RESPECTIVELY FOR LH AND F.S.H. WHEN DOPAMINE AGONIST (LARODOPA 500 MGRX2) WAS ADMINISTRATED 12 H. AND -1 H BEFORE OESTROGENS, RESULTED IN A SIMILAR PATTERN OF LH AND F.S.H. DECLINE, FOLLOWING O.B ADMINISTRATION. THE ADMINISTRATION OF DOPAMINE ANTAGONIST (SULPIRIDE 100 MGRX2 I.M) BEFORE OESTROGEN, DID NOT ALTER THE PATTERN OF THE OESTROGEN ELICITED NEGATIVE FEEDBACK EITHER QUALITAVELY OR QUANTITAVELY. THESE RESULTS ARE SUPPORTING THE VIEW AT LEAST DOPAMINERGIC NEURONS ARE NOT ACTIVATED BY OESTROGEN FOR THEIR NEGATIVE FEEDBACK CONTROL ON GONADOTROPIN SECRETION.","abstract_html":"THE NEGATIVE FEEDBACK CONTROL OF OESTROGEN TO GONADOTROPIN SECRETION AND THE POSSIBILITY OF THE ACTIVATION OF DOPAMINERGIC NEURONS FOR ELICITING THIS OESTROGEN EFFECT HAS BEEN STUDIED IN 23 MENOPAUSE WOMEN. THE ADMINISTRATION OF OESTRADIOL BENZOATE (1 MGR I.M) RESULTED IN AN INITIAL DECLINE AT LH AND F.S.H. LEVELS.THESE INITIAL DECLINE BECAME STATISTICALLY SIGNIFICANT IN 6 HOUR AND 8 HOUR RESPECTIVELY FOR LH AND F.S.H. WHEN DOPAMINE AGONIST (LARODOPA 500 MGRX2) WAS ADMINISTRATED 12 H. AND -1 H BEFORE OESTROGENS, RESULTED IN A SIMILAR PATTERN OF LH AND F.S.H. DECLINE, FOLLOWING O.B ADMINISTRATION. THE ADMINISTRATION OF DOPAMINE ANTAGONIST (SULPIRIDE 100 MGRX2 I.M) BEFORE OESTROGEN, DID NOT ALTER THE PATTERN OF THE OESTROGEN ELICITED NEGATIVE FEEDBACK EITHER QUALITAVELY OR QUANTITAVELY. THESE RESULTS ARE SUPPORTING THE VIEW AT LEAST DOPAMINERGIC NEURONS ARE NOT ACTIVATED BY OESTROGEN FOR THEIR NEGATIVE FEEDBACK CONTROL ON GONADOTROPIN SECRETION.","abstract_has_math":false,"creators":["Μπάϊμας, Ιωάννης"],"institution":"National and Kapodistrian University of Athens","degree_name":null,"degree_level":null,"degree_discipline":null,"degree_department":null,"school":null,"contributors":[],"advisors":[],"committee_chairs":[],"committee_members":[],"year":1982,"date_issued":"1982","date_published":"1982","updated_at":"2026-07-24T02:25:14Z","subjects":["ACTIVATION OF OESTROGEN ON PITU HYPOTHALAMIC HORMONES AND NEUROTRASMITTERS","Γοναδοτροφίνες","ΔΡΑΣΗ ΟΙΣΤΡΟΓΟΝΩΝ ΣΤΟ ΥΠΟΦΥΣΙΑΚΟ ΕΠΙΠΕΔΟ","Εμμηνόπαυση","Νευρομεταβιβαστές","ΝΤΟΠΑΜΙΝΕΡΓΙΚΟΙ ΝΕΥΡΩΝΕΣ","Ιατρική και Επιστήμες Υγείας","Κλινική Ιατρική","Medical and Health Sciences","Clinical Medicine"],"languages":["gre"],"rights":[],"rights_urls":[],"identifier_entries":[{"key":"dc:identifier","label":"Identifier","values":["10.12681/eadd/0365"],"render_values":[{"text":"10.12681/eadd/0365","href":"https://doi.org/10.12681/eadd/0365","code":true}]}]},"links":{"outbound_url":"http://hdl.handle.net/10442/hedi/0365","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:creator","label":"Author","values":["Μπάϊμας, Ιωάννης"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["1982"]},{"key":"dc:publisher","label":"Institution","values":["National and Kapodistrian University of Athens","Εθνικό και Καποδιστριακό Πανεπιστήμιο Αθηνών (ΕΚΠΑ)"]},{"key":"dc:type","label":"Dc Type","values":["PhD Thesis"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["ACTIVATION OF OESTROGEN ON PITU HYPOTHALAMIC HORMONES AND NEUROTRASMITTERS","Γοναδοτροφίνες","ΔΡΑΣΗ ΟΙΣΤΡΟΓΟΝΩΝ ΣΤΟ ΥΠΟΦΥΣΙΑΚΟ ΕΠΙΠΕΔΟ","Εμμηνόπαυση","Νευρομεταβιβαστές","ΝΤΟΠΑΜΙΝΕΡΓΙΚΟΙ ΝΕΥΡΩΝΕΣ","Ιατρική και Επιστήμες Υγείας","Κλινική Ιατρική","Medical and Health Sciences","Clinical Medicine"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["gre"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["10.12681/eadd/0365","http://hdl.handle.net/10442/hedi/0365"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["THE NEGATIVE FEEDBACK CONTROL OF OESTROGEN TO GONADOTROPIN SECRETION AND THE POSSIBILITY OF THE ACTIVATION OF DOPAMINERGIC NEURONS FOR ELICITING THIS OESTROGEN EFFECT HAS BEEN STUDIED IN 23 MENOPAUSE WOMEN. THE ADMINISTRATION OF OESTRADIOL BENZOATE (1 MGR I.M) RESULTED IN AN INITIAL DECLINE AT LH AND F.S.H. LEVELS.THESE INITIAL DECLINE BECAME STATISTICALLY SIGNIFICANT IN 6 HOUR AND 8 HOUR RESPECTIVELY FOR LH AND F.S.H. WHEN DOPAMINE AGONIST (LARODOPA 500 MGRX2) WAS ADMINISTRATED 12 H. AND -1 H BEFORE OESTROGENS, RESULTED IN A SIMILAR PATTERN OF LH AND F.S.H. DECLINE, FOLLOWING O.B ADMINISTRATION. THE ADMINISTRATION OF DOPAMINE ANTAGONIST (SULPIRIDE 100 MGRX2 I.M) BEFORE OESTROGEN, DID NOT ALTER THE PATTERN OF THE OESTROGEN ELICITED NEGATIVE FEEDBACK EITHER QUALITAVELY OR QUANTITAVELY. THESE RESULTS ARE SUPPORTING THE VIEW AT LEAST DOPAMINERGIC NEURONS ARE NOT ACTIVATED BY OESTROGEN FOR THEIR NEGATIVE FEEDBACK CONTROL ON GONADOTROPIN SECRETION.","Η ΔΙΕΡΕΥΝΗΣΗ ΤΟΥ ΕΠΙΠΕΔΟΥ ΣΤΟ ΟΠΟΙΟ ΑΣΚΕΙΤΑΙ Η ΔΡΑΣΗ ΤΩΝ ΟΙΣΤΡΟΓΟΝΩΝ ΓΙΑ ΤΗΝ ΕΚΛΥΣΗ ΤΗΣ ΑΡΝΗΤΙΚΗΣ ΠΑΛΙΝΔΡΟΜΗΣ ΡΥΘΜΙΣΗΣ ΣΤΙΣ ΓΟΝΑΔΟΤΡΟΦΙΝΕΣ ΚΑΙ ΕΙΔΙΚΩΤΕΡΑ Η ΠΙΘΑΝΟΤΗΤΑ ΣΥΜΜΕΤΟΧΗΣ ΤΩΝ ΝΤΟΠΑΜΙΝΕΡΓΙΚΩΝ ΝΕΥΡΩΝΩΝ ΜΕΛΕΤΗΘΗΚΕ ΣΕ ΕΙΚΟΣΙ ΤΡΕΙΣ (23) ΕΜΜΗΝΟΠΑΥΣΙΑΚΕΣ ΓΥΝΑΙΚΕΣ. ΕΤΣΙ Α) Η ΧΟΡΗΓΗΣΗ ΒΕΝΖΟΙΚΗΣ ΟΙΣΤΡΑΔΙΟΛΗΣ (1 MGR Ε.Δ.) ΣΕ (10) ΓΥΝΑΙΚΕΣ ΕΙΧΕ ΣΑΝ ΑΠΟΤΕΛΕΣΜΑ ΤΗΝ ΜΕΙΩΣΗ ΤΩΝ ΕΠΙΠΕΔΩΝ ΤΗΣ LH ΑΠΟ ΤΟ ΠΡΩΤΟ ΔΙΩΡΟ ΜΕ ΤΗΝ ΜΕΓΑΛΥΤΕΡΗ ΠΤΩΣΗ ΣΤΙΣ 12 ΩΡΕΣ, ΕΝΩ Η ΠΤΩΣΗ ΤΗΣ F.S.H. ΗΤΑΝ ΜΕΓΑΛΥΤΕΡΗ ΣΤΙΣ 48 ΩΡΕΣ ΤΗΣ ΠΑΡΑΤΗΡΗΣΗΣ. Β) Η ΠΡΟΗΓΗΘΕΙΣΑ ΤΗΣ ΔΟΣΗΣ ΤΗΣ ΒΕΝΖΟΙΚΗΣ ΟΙΣΤΡΑΔΙΟΛΗΣ ΧΟΡΗΓΗΣΗ 1) L-DOPA (500 MGRX2) ΣΕ ΕΠΤΑ (7) ΓΥΝΑΙΚΕΣ ΚΑΙ 2) ΣΟΥΛΠΥΡΙΔΙΟΥ (100 MGRX2) ΣΕ ΕΞΗ (6) ΓΥΝΑΙΚΕΣ ΔΕΝ ΑΛΛΑΞΕ ΤΗΝ ΕΙΚΟΝΑ ΜΕΤΑΒΟΛΗΣ ΤΩΝ ΓΟΝΑΔΟΤΡΟΦΙΝΩΝ. ΤΑ ΑΝΩΤΕΡΩ ΣΥΝΗΓΟΡΟΥΝ ΥΠΕΡ ΤΗΣ ΜΗ ΣΥΜΜΕΤΟΧΗΣ ΤΩΝ ΝΤΟΠΑΜΙΝΕΡΓΙΚΩΝ ΥΠΟΔΟΧΕΩΝ ΣΤΟ ΦΑΙΝΟΜΕΝΟ ΤΗΣ ΑΡΝΗΤΙΚΗΣ ΠΑΛΙΝΔΡΟΜΗΣ ΡΥΘΜΙΣΗΣ ΤΩΝ ΓΟΝΑΔΟΤΡΟΦΙΝΩΝ ΜΕΤΑ ΧΟΡΗΓΗΣΗ ΟΙΣΤΡΟΓΟΝΩΝ."]},{"key":"dc:title","label":"Title","values":["ΜΕΛΕΤΗ ΣΥΜΜΕΤΟΧΗΣ ΤΩΝ ΝΤΟΠΑΜΙΝΕΡΓΙΚΩΝ ΝΕΥΡΩΝΩΝ ΣΤΗΝ ΑΡΝΗΤΙΚΗ ΠΑΛΙΝΔΡΟΜΗ ΡΥΘΜΙΣΗ ΤΩΝ ΓΟΝΑΔΟΤΡΟΦΙΝΩΝ ΜΕ ΟΙΣΤΡΟΓΟΝΑ","STUDY OF PARTICIPATION OF THE DOPAMINERGIC NEURONS ON NEGATIVE FEEDBACK MECHANISM OF OESTROGEN, ON GONADOTROPIN RELEASE"]}]}],"canonical_facts":{"dc:creator":["Μπάϊμας, Ιωάννης"],"dc:date":["1982"],"dc:description":["THE NEGATIVE FEEDBACK CONTROL OF OESTROGEN TO GONADOTROPIN SECRETION AND THE POSSIBILITY OF THE ACTIVATION OF DOPAMINERGIC NEURONS FOR ELICITING THIS OESTROGEN EFFECT HAS BEEN STUDIED IN 23 MENOPAUSE WOMEN. THE ADMINISTRATION OF OESTRADIOL BENZOATE (1 MGR I.M) RESULTED IN AN INITIAL DECLINE AT LH AND F.S.H. LEVELS.THESE INITIAL DECLINE BECAME STATISTICALLY SIGNIFICANT IN 6 HOUR AND 8 HOUR RESPECTIVELY FOR LH AND F.S.H. WHEN DOPAMINE AGONIST (LARODOPA 500 MGRX2) WAS ADMINISTRATED 12 H. AND -1 H BEFORE OESTROGENS, RESULTED IN A SIMILAR PATTERN OF LH AND F.S.H. DECLINE, FOLLOWING O.B ADMINISTRATION. THE ADMINISTRATION OF DOPAMINE ANTAGONIST (SULPIRIDE 100 MGRX2 I.M) BEFORE OESTROGEN, DID NOT ALTER THE PATTERN OF THE OESTROGEN ELICITED NEGATIVE FEEDBACK EITHER QUALITAVELY OR QUANTITAVELY. THESE RESULTS ARE SUPPORTING THE VIEW AT LEAST DOPAMINERGIC NEURONS ARE NOT ACTIVATED BY OESTROGEN FOR THEIR NEGATIVE FEEDBACK CONTROL ON GONADOTROPIN SECRETION.","Η ΔΙΕΡΕΥΝΗΣΗ ΤΟΥ ΕΠΙΠΕΔΟΥ ΣΤΟ ΟΠΟΙΟ ΑΣΚΕΙΤΑΙ Η ΔΡΑΣΗ ΤΩΝ ΟΙΣΤΡΟΓΟΝΩΝ ΓΙΑ ΤΗΝ ΕΚΛΥΣΗ ΤΗΣ ΑΡΝΗΤΙΚΗΣ ΠΑΛΙΝΔΡΟΜΗΣ ΡΥΘΜΙΣΗΣ ΣΤΙΣ ΓΟΝΑΔΟΤΡΟΦΙΝΕΣ ΚΑΙ ΕΙΔΙΚΩΤΕΡΑ Η ΠΙΘΑΝΟΤΗΤΑ ΣΥΜΜΕΤΟΧΗΣ ΤΩΝ ΝΤΟΠΑΜΙΝΕΡΓΙΚΩΝ ΝΕΥΡΩΝΩΝ ΜΕΛΕΤΗΘΗΚΕ ΣΕ ΕΙΚΟΣΙ ΤΡΕΙΣ (23) ΕΜΜΗΝΟΠΑΥΣΙΑΚΕΣ ΓΥΝΑΙΚΕΣ. ΕΤΣΙ Α) Η ΧΟΡΗΓΗΣΗ ΒΕΝΖΟΙΚΗΣ ΟΙΣΤΡΑΔΙΟΛΗΣ (1 MGR Ε.Δ.) ΣΕ (10) ΓΥΝΑΙΚΕΣ ΕΙΧΕ ΣΑΝ ΑΠΟΤΕΛΕΣΜΑ ΤΗΝ ΜΕΙΩΣΗ ΤΩΝ ΕΠΙΠΕΔΩΝ ΤΗΣ LH ΑΠΟ ΤΟ ΠΡΩΤΟ ΔΙΩΡΟ ΜΕ ΤΗΝ ΜΕΓΑΛΥΤΕΡΗ ΠΤΩΣΗ ΣΤΙΣ 12 ΩΡΕΣ, ΕΝΩ Η ΠΤΩΣΗ ΤΗΣ F.S.H. ΗΤΑΝ ΜΕΓΑΛΥΤΕΡΗ ΣΤΙΣ 48 ΩΡΕΣ ΤΗΣ ΠΑΡΑΤΗΡΗΣΗΣ. Β) Η ΠΡΟΗΓΗΘΕΙΣΑ ΤΗΣ ΔΟΣΗΣ ΤΗΣ ΒΕΝΖΟΙΚΗΣ ΟΙΣΤΡΑΔΙΟΛΗΣ ΧΟΡΗΓΗΣΗ 1) L-DOPA (500 MGRX2) ΣΕ ΕΠΤΑ (7) ΓΥΝΑΙΚΕΣ ΚΑΙ 2) ΣΟΥΛΠΥΡΙΔΙΟΥ (100 MGRX2) ΣΕ ΕΞΗ (6) ΓΥΝΑΙΚΕΣ ΔΕΝ ΑΛΛΑΞΕ ΤΗΝ ΕΙΚΟΝΑ ΜΕΤΑΒΟΛΗΣ ΤΩΝ ΓΟΝΑΔΟΤΡΟΦΙΝΩΝ. ΤΑ ΑΝΩΤΕΡΩ ΣΥΝΗΓΟΡΟΥΝ ΥΠΕΡ ΤΗΣ ΜΗ ΣΥΜΜΕΤΟΧΗΣ ΤΩΝ ΝΤΟΠΑΜΙΝΕΡΓΙΚΩΝ ΥΠΟΔΟΧΕΩΝ ΣΤΟ ΦΑΙΝΟΜΕΝΟ ΤΗΣ ΑΡΝΗΤΙΚΗΣ ΠΑΛΙΝΔΡΟΜΗΣ ΡΥΘΜΙΣΗΣ ΤΩΝ ΓΟΝΑΔΟΤΡΟΦΙΝΩΝ ΜΕΤΑ ΧΟΡΗΓΗΣΗ ΟΙΣΤΡΟΓΟΝΩΝ."],"dc:identifier":["10.12681/eadd/0365","http://hdl.handle.net/10442/hedi/0365"],"dc:language":["gre"],"dc:publisher":["National and Kapodistrian University of Athens","Εθνικό και Καποδιστριακό Πανεπιστήμιο Αθηνών (ΕΚΠΑ)"],"dc:subject":["ACTIVATION OF OESTROGEN ON PITU HYPOTHALAMIC HORMONES AND NEUROTRASMITTERS","Γοναδοτροφίνες","ΔΡΑΣΗ ΟΙΣΤΡΟΓΟΝΩΝ ΣΤΟ ΥΠΟΦΥΣΙΑΚΟ ΕΠΙΠΕΔΟ","Εμμηνόπαυση","Νευρομεταβιβαστές","ΝΤΟΠΑΜΙΝΕΡΓΙΚΟΙ ΝΕΥΡΩΝΕΣ","Ιατρική και Επιστήμες Υγείας","Κλινική Ιατρική","Medical and Health Sciences","Clinical Medicine"],"dc:title":["ΜΕΛΕΤΗ ΣΥΜΜΕΤΟΧΗΣ ΤΩΝ ΝΤΟΠΑΜΙΝΕΡΓΙΚΩΝ ΝΕΥΡΩΝΩΝ ΣΤΗΝ ΑΡΝΗΤΙΚΗ ΠΑΛΙΝΔΡΟΜΗ ΡΥΘΜΙΣΗ ΤΩΝ ΓΟΝΑΔΟΤΡΟΦΙΝΩΝ ΜΕ ΟΙΣΤΡΟΓΟΝΑ","STUDY OF PARTICIPATION OF THE DOPAMINERGIC NEURONS ON NEGATIVE FEEDBACK MECHANISM OF OESTROGEN, ON GONADOTROPIN RELEASE"],"dc:type":["PhD Thesis"]},"updated_at":"2026-07-24T02:25:14Z"}