{"id":{"repo_id":"greece","oai_identifier":"oai:10442/1110"},"canonical_url":"https://search.dev.ndltd.org/etd/greece/oai:10442/1110","repository":{"repo_id":"greece","name":"Greek National Archive of PhD Theses","base_url":"https://phdtheses.ekt.gr/eadd_oai/request"},"display":{"title":"Η ΣΤΑΘΕΡΟΠΟΙΗΣΗ ΤΗΣ ΧΡΩΜΑΤΙΝΗΣ ΤΩΝ ΣΠΕΡΜΑΤΟΖΩΑΡΙΩΝ ΩΣ ΔΕΙΚΤΗΣ ΤΗΣ ΓΟΝΙΜΟΤΗΤΑΣ ΤΟΥ ΣΠΕΡΜΑΤΟΣ","abstract":"THE PURPOSE OF THE PRESENT STUDY IS TO EVALUATE IF THE CHROMATIN STABILITY OF THE SPERMATOZOA CAN BE USED AS AN INDEX TO ASSESS WHETHER ONE SEMEN CAN CHARACTERIZE EITHER POTENTIAL FERTILITY OR LOW FERTILITY. FROM THE RESULTS OF OUR STUDYWE CONCLUDE THAT WHERE THE CHROMATIN STABILITY OF EJACULATED SPERMATOZOA IS GREATER THAN 70% IT HAS A POSITIVE EFFECT ON FERTILIZATION, WHERE THE CHROMATIN STABILITY IS BETWEEN 50% AND 70% THERE IS A MORE LIMITED POSSIBILITY OF FERTILIZATION AND FINALLY THE EXISTENCE OF LESS THAN 50% OF STABLE CHROMATIN DOES NOT EXCLUDE THE POSSIBILITY OF FERTILIZATION BUT ACCORDING TO OUR FINDINGS, SIMPLY REDUCES THE FERTILIZATION POTENTIAL.","abstract_html":"THE PURPOSE OF THE PRESENT STUDY IS TO EVALUATE IF THE CHROMATIN STABILITY OF THE SPERMATOZOA CAN BE USED AS AN INDEX TO ASSESS WHETHER ONE SEMEN CAN CHARACTERIZE EITHER POTENTIAL FERTILITY OR LOW FERTILITY. FROM THE RESULTS OF OUR STUDYWE CONCLUDE THAT WHERE THE CHROMATIN STABILITY OF EJACULATED SPERMATOZOA IS GREATER THAN 70% IT HAS A POSITIVE EFFECT ON FERTILIZATION, WHERE THE CHROMATIN STABILITY IS BETWEEN 50% AND 70% THERE IS A MORE LIMITED POSSIBILITY OF FERTILIZATION AND FINALLY THE EXISTENCE OF LESS THAN 50% OF STABLE CHROMATIN DOES NOT EXCLUDE THE POSSIBILITY OF FERTILIZATION BUT ACCORDING TO OUR FINDINGS, SIMPLY REDUCES THE FERTILIZATION POTENTIAL.","abstract_has_math":false,"creators":["Ζηκόπουλος, Κωνσταντίνος"],"institution":"University of Ioannina","degree_name":null,"degree_level":null,"degree_discipline":null,"degree_department":null,"school":null,"contributors":[],"advisors":[],"committee_chairs":[],"committee_members":[],"year":1989,"date_issued":"1989","date_published":"1989","updated_at":"2026-07-24T02:24:43Z","subjects":["Γονιμότητα","Σπερματοζωάρια","ΣΤΑΘΕΡΟΠΟΙΗΣΗ ΤΗΣ ΧΡΩΜΑΤΙΝΗΣ","CHROMATIN STABILITY","Fertility","Spermatozoa","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/1110"],"render_values":[{"text":"10.12681/eadd/1110","href":"https://doi.org/10.12681/eadd/1110","code":true}]}]},"links":{"outbound_url":"http://hdl.handle.net/10442/hedi/1110","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:creator","label":"Author","values":["Ζηκόπουλος, Κωνσταντίνος"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["1989"]},{"key":"dc:publisher","label":"Institution","values":["University of Ioannina","Πανεπιστήμιο Ιωαννίνων"]},{"key":"dc:type","label":"Dc Type","values":["PhD Thesis"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Γονιμότητα","Σπερματοζωάρια","ΣΤΑΘΕΡΟΠΟΙΗΣΗ ΤΗΣ ΧΡΩΜΑΤΙΝΗΣ","CHROMATIN STABILITY","Fertility","Spermatozoa","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/1110","http://hdl.handle.net/10442/hedi/1110"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["THE PURPOSE OF THE PRESENT STUDY IS TO EVALUATE IF THE CHROMATIN STABILITY OF THE SPERMATOZOA CAN BE USED AS AN INDEX TO ASSESS WHETHER ONE SEMEN CAN CHARACTERIZE EITHER POTENTIAL FERTILITY OR LOW FERTILITY. FROM THE RESULTS OF OUR STUDYWE CONCLUDE THAT WHERE THE CHROMATIN STABILITY OF EJACULATED SPERMATOZOA IS GREATER THAN 70% IT HAS A POSITIVE EFFECT ON FERTILIZATION, WHERE THE CHROMATIN STABILITY IS BETWEEN 50% AND 70% THERE IS A MORE LIMITED POSSIBILITY OF FERTILIZATION AND FINALLY THE EXISTENCE OF LESS THAN 50% OF STABLE CHROMATIN DOES NOT EXCLUDE THE POSSIBILITY OF FERTILIZATION BUT ACCORDING TO OUR FINDINGS, SIMPLY REDUCES THE FERTILIZATION POTENTIAL.","ΣΚΟΠΟΣ ΤΗΣ ΜΕΛΕΤΗΣ ΗΤΑΝ ΝΑ ΑΞΙΟΛΟΓΗΣΕΙ ΚΑΤΑ ΠΟΣΟ Η ΣΤΑΘΕΡΟΤΗΤΑ ΤΗΣ ΧΡΩΜΑΤΙΝΗΣ ΤΩΝ ΣΠΕΡΜΑΤΟΖΩΑΡΙΩΝ ΜΠΟΡΕΙ ΝΑ ΧΡΗΣΙΜΕΥΣΕΙ ΣΑΝ ΕΝΑΣ ΔΕΙΚΤΗΣ ΩΣΤΕ ΕΝΑ ΣΠΕΡΜΑ ΝΑ ΘΕΩΡΕΙΤΑΙ ΣΑΝ ΔΥΝΗΤΙΚΑ ΓΟΝΙΜΟ 'Η ΜΕΙΩΜΕΝΗΣ ΓΟΝΙΜΟΤΗΤΟΣ. ΑΠΟ ΤΗΝ ΜΕΛΕΤΗ ΜΑΣ ΑΥΤΗ ΚΑΤΑΛΗΞΑΜΕ ΣΤΟ ΣΥΜΠΕΡΑΣΜΑ ΟΤΙ ΟΠΟΥ Η ΣΤΑΘΕΡΟΤΗΤΑ ΤΗΣ ΧΡΩΜΑΤΙΝΗΣ ΤΩΝ ΕΚΣΠΕΡΜΑΤΙΣΘΕΝΤΩΝ ΣΠΕΡΜΑΤΟΖΩΑΡΙΩΝ ΕΙΝΑΙ >70% ΕΧΕΙ ΘΕΤΙΚΗ ΕΠΙΔΡΑΣΗ ΣΤΗΝ ΓΟΝΙΜΟΤΗΤΑ, ΟΡΙΑΚΕΣ ΘΕΩΡΟΥΝΤΑΙ ΟΙ ΤΙΜΕΣ 50-70% ΚΑΙ Η ΥΠΑΡΞΗ ΑΣΤΑΘΕΡΟΠΟΙΗΤΗΣ ΧΡΩΜΑΤΙΝΗΣ ΣΕ ΠΟΣΟΣΤΟ <50% ΔΕΝ ΑΠΟΚΛΕΙΕΙ ΤΗ ΓΟΝΙΜΟΤΗΤΑ, ΑΠΛΩΣ ΣΥΜΦΩΝΑ ΜΕ ΤΑ ΕΥΡΗΜΑΤΑ ΜΑΣ, ΜΕΙΩΝΕΙ ΤΗ ΔΥΝΗΤΙΚΟΤΗΤΑ ΤΗΣ. ΕΠΙΠΛΕΟΝ ΒΡΕΘΗΚΕ ΟΤΙ ΔΕΝ ΥΠΑΡΧΕΙ ΣΥΣΧΕΤΙΣΗ ΜΕΤΑΞΥ ΣΤΑΘΕΡΟΤΗΤΑΣΤΗΣ ΧΡΩΜΑΤΙΝΗΣ, ΤΟΥ ΑΡΙΘΜΟΥ, ΤΗΣ ΚΙΝΗΤΙΚΟΤΗΤΑΣ ΚΑΙ ΤΗΣ ΜΟΡΦΟΛΟΓΙΑΣ ΤΩΝ ΣΠΕΡΜΑΤΟΖΩΑΡΙΩΝ."]},{"key":"dc:title","label":"Title","values":["Η ΣΤΑΘΕΡΟΠΟΙΗΣΗ ΤΗΣ ΧΡΩΜΑΤΙΝΗΣ ΤΩΝ ΣΠΕΡΜΑΤΟΖΩΑΡΙΩΝ ΩΣ ΔΕΙΚΤΗΣ ΤΗΣ ΓΟΝΙΜΟΤΗΤΑΣ ΤΟΥ ΣΠΕΡΜΑΤΟΣ","THE CHROMATIN STABILITY OF THE SPERMATOZOA AS AN INDEX FOR THE FERTILIZATION OFSPERM"]}]}],"canonical_facts":{"dc:creator":["Ζηκόπουλος, Κωνσταντίνος"],"dc:date":["1989"],"dc:description":["THE PURPOSE OF THE PRESENT STUDY IS TO EVALUATE IF THE CHROMATIN STABILITY OF THE SPERMATOZOA CAN BE USED AS AN INDEX TO ASSESS WHETHER ONE SEMEN CAN CHARACTERIZE EITHER POTENTIAL FERTILITY OR LOW FERTILITY. FROM THE RESULTS OF OUR STUDYWE CONCLUDE THAT WHERE THE CHROMATIN STABILITY OF EJACULATED SPERMATOZOA IS GREATER THAN 70% IT HAS A POSITIVE EFFECT ON FERTILIZATION, WHERE THE CHROMATIN STABILITY IS BETWEEN 50% AND 70% THERE IS A MORE LIMITED POSSIBILITY OF FERTILIZATION AND FINALLY THE EXISTENCE OF LESS THAN 50% OF STABLE CHROMATIN DOES NOT EXCLUDE THE POSSIBILITY OF FERTILIZATION BUT ACCORDING TO OUR FINDINGS, SIMPLY REDUCES THE FERTILIZATION POTENTIAL.","ΣΚΟΠΟΣ ΤΗΣ ΜΕΛΕΤΗΣ ΗΤΑΝ ΝΑ ΑΞΙΟΛΟΓΗΣΕΙ ΚΑΤΑ ΠΟΣΟ Η ΣΤΑΘΕΡΟΤΗΤΑ ΤΗΣ ΧΡΩΜΑΤΙΝΗΣ ΤΩΝ ΣΠΕΡΜΑΤΟΖΩΑΡΙΩΝ ΜΠΟΡΕΙ ΝΑ ΧΡΗΣΙΜΕΥΣΕΙ ΣΑΝ ΕΝΑΣ ΔΕΙΚΤΗΣ ΩΣΤΕ ΕΝΑ ΣΠΕΡΜΑ ΝΑ ΘΕΩΡΕΙΤΑΙ ΣΑΝ ΔΥΝΗΤΙΚΑ ΓΟΝΙΜΟ 'Η ΜΕΙΩΜΕΝΗΣ ΓΟΝΙΜΟΤΗΤΟΣ. ΑΠΟ ΤΗΝ ΜΕΛΕΤΗ ΜΑΣ ΑΥΤΗ ΚΑΤΑΛΗΞΑΜΕ ΣΤΟ ΣΥΜΠΕΡΑΣΜΑ ΟΤΙ ΟΠΟΥ Η ΣΤΑΘΕΡΟΤΗΤΑ ΤΗΣ ΧΡΩΜΑΤΙΝΗΣ ΤΩΝ ΕΚΣΠΕΡΜΑΤΙΣΘΕΝΤΩΝ ΣΠΕΡΜΑΤΟΖΩΑΡΙΩΝ ΕΙΝΑΙ >70% ΕΧΕΙ ΘΕΤΙΚΗ ΕΠΙΔΡΑΣΗ ΣΤΗΝ ΓΟΝΙΜΟΤΗΤΑ, ΟΡΙΑΚΕΣ ΘΕΩΡΟΥΝΤΑΙ ΟΙ ΤΙΜΕΣ 50-70% ΚΑΙ Η ΥΠΑΡΞΗ ΑΣΤΑΘΕΡΟΠΟΙΗΤΗΣ ΧΡΩΜΑΤΙΝΗΣ ΣΕ ΠΟΣΟΣΤΟ <50% ΔΕΝ ΑΠΟΚΛΕΙΕΙ ΤΗ ΓΟΝΙΜΟΤΗΤΑ, ΑΠΛΩΣ ΣΥΜΦΩΝΑ ΜΕ ΤΑ ΕΥΡΗΜΑΤΑ ΜΑΣ, ΜΕΙΩΝΕΙ ΤΗ ΔΥΝΗΤΙΚΟΤΗΤΑ ΤΗΣ. ΕΠΙΠΛΕΟΝ ΒΡΕΘΗΚΕ ΟΤΙ ΔΕΝ ΥΠΑΡΧΕΙ ΣΥΣΧΕΤΙΣΗ ΜΕΤΑΞΥ ΣΤΑΘΕΡΟΤΗΤΑΣΤΗΣ ΧΡΩΜΑΤΙΝΗΣ, ΤΟΥ ΑΡΙΘΜΟΥ, ΤΗΣ ΚΙΝΗΤΙΚΟΤΗΤΑΣ ΚΑΙ ΤΗΣ ΜΟΡΦΟΛΟΓΙΑΣ ΤΩΝ ΣΠΕΡΜΑΤΟΖΩΑΡΙΩΝ."],"dc:identifier":["10.12681/eadd/1110","http://hdl.handle.net/10442/hedi/1110"],"dc:language":["gre"],"dc:publisher":["University of Ioannina","Πανεπιστήμιο Ιωαννίνων"],"dc:subject":["Γονιμότητα","Σπερματοζωάρια","ΣΤΑΘΕΡΟΠΟΙΗΣΗ ΤΗΣ ΧΡΩΜΑΤΙΝΗΣ","CHROMATIN STABILITY","Fertility","Spermatozoa","Ιατρική και Επιστήμες Υγείας","Κλινική Ιατρική","Medical and Health Sciences","Clinical Medicine"],"dc:title":["Η ΣΤΑΘΕΡΟΠΟΙΗΣΗ ΤΗΣ ΧΡΩΜΑΤΙΝΗΣ ΤΩΝ ΣΠΕΡΜΑΤΟΖΩΑΡΙΩΝ ΩΣ ΔΕΙΚΤΗΣ ΤΗΣ ΓΟΝΙΜΟΤΗΤΑΣ ΤΟΥ ΣΠΕΡΜΑΤΟΣ","THE CHROMATIN STABILITY OF THE SPERMATOZOA AS AN INDEX FOR THE FERTILIZATION OFSPERM"],"dc:type":["PhD Thesis"]},"updated_at":"2026-07-24T02:24:43Z"}