Introduction: Human Papillomavirus (HPV) infection in seminal fluid is a condition of potential pathogenetic relevance in male infertility. This study is part of the prospective multicentre "HOPE" study, aiming to determine the prevalence and clinical-biological impact of seminal HPV on conventional sperm parameters and second-level ART outcomes. Materials and Methods: A total of 133 couples attending 2 ART centres for IVF/ICSI cycles were recruited, in which the female partner tested negative for HPV-DNA. HPV genotyping on male seminal fluid was performed via DNA extraction and Reverse Line Blot assay (Ampliquality HPV-Type Express v3.0) to identify 40 genotypes. Seminal parameters were evaluated according to WHO 2021 standards. Embryological and pregnancy outcomes were analysed and compared between HPV-positive and HPV-negative subjects. Results: The overall prevalence of seminal HPV infection was 17.0% (19/112), with a higher predominance of high-risk oncogenic genotypes (HPV16, 31, 35, 51). No statistically significant differences emerged in conventional seminal parameters between HPV-positive and HPV-negative subjects. Regarding in vitro embryonic development, the fertilization rate was comparable; however, a statistically significant reduction in the distribution ad number of obtained blastocyst distribution and yield per cycle was observed in HPV-positive subjects (p=0.038). No significant differences were found in clinical and biochemical pregnancy rates. Conclusions: Seminal HPV infection does not appear to alter conventional seminal parameters but is associated with a significant reduction in blastocyst yield. These findings support the clinical utility of semen HPV screening and the potential application of advanced sperm washing techniques in assisted reproduction pathways.
Introduzione: L’infezione da Papillomavirus Umano (HPV) a livello del liquido seminale è una condizione di potenziale rilevanza patogenetica nell'infertilità maschile. Il presente lavoro si inserisce nello studio prospettico multicentrico "HOPE" con l'obiettivo di determinare la prevalenza e l'impatto clinico-biologico dell'HPV seminale sui parametri spermatici convenzionali e sugli outcome di PMA di II livello. Materiali e metodi: Sono state reclutate 133 coppie consecutive afferenti a2 centri di PMA per cicli di FIVET/ICSI con partner femminile risultata negativa a HPV-DNA. La genotipizzazione dell'HPV sul liquido seminale maschile è stata eseguita tramite estrazione di DNA e saggio Reverse Line Blot (Ampliquality HPV-Type Express v3.0) per l'identificazione di 40 genotipi. I parametri seminali sono stati valutati secondo standard WHO 2021. Gli outcome embriologici e di gravidanza sono stati analizzati e confrontati tra soggetti HPV-positivi e negativi. Risultati: La prevalenza globale di infezione seminale da HPV è risultata pari al 17,0% (19/112), con maggiore prevalenza di genotipi ad alto rischio oncogeno (HPV16, 31, 35, 51). Non sono emerse differenze statisticamente significative nei parametri seminali convenzionali tra soggetti HPV-positivi e negativi. Relativamente allo sviluppo embrionale in vitro, il tasso di fertilizzazione è risultato sovrapponibile, ma si è evidenziata una riduzione significativamente differente nella distribuzione e del numero di blastocisti ottenute per ciclo nei soggetti HPV-positivi (p=0,038). Non sono state riscontrate variazioni significative sui tassi di gravidanza clinica e biochimica. Conclusioni: L’infezione seminale da HPV non sembra alterare i parametri seminali convenzionali, ma si associa a una significativa riduzione del numero di blastocisti ottenute. Tali evidenze supportano l'utilità di uno screening seminale per HPV e la potenziale applicazione di tecniche di lavaggio avanzate nei percorsi di fecondazione assistita.
Valutazione dell'impatto della presenza di HPV nel liquido seminale sui parametri seminali e sugli outcome della PMA di secondo livello: HOPE Study
FINOCCHI, FEDERICA
2025/2026
Abstract
Introduction: Human Papillomavirus (HPV) infection in seminal fluid is a condition of potential pathogenetic relevance in male infertility. This study is part of the prospective multicentre "HOPE" study, aiming to determine the prevalence and clinical-biological impact of seminal HPV on conventional sperm parameters and second-level ART outcomes. Materials and Methods: A total of 133 couples attending 2 ART centres for IVF/ICSI cycles were recruited, in which the female partner tested negative for HPV-DNA. HPV genotyping on male seminal fluid was performed via DNA extraction and Reverse Line Blot assay (Ampliquality HPV-Type Express v3.0) to identify 40 genotypes. Seminal parameters were evaluated according to WHO 2021 standards. Embryological and pregnancy outcomes were analysed and compared between HPV-positive and HPV-negative subjects. Results: The overall prevalence of seminal HPV infection was 17.0% (19/112), with a higher predominance of high-risk oncogenic genotypes (HPV16, 31, 35, 51). No statistically significant differences emerged in conventional seminal parameters between HPV-positive and HPV-negative subjects. Regarding in vitro embryonic development, the fertilization rate was comparable; however, a statistically significant reduction in the distribution ad number of obtained blastocyst distribution and yield per cycle was observed in HPV-positive subjects (p=0.038). No significant differences were found in clinical and biochemical pregnancy rates. Conclusions: Seminal HPV infection does not appear to alter conventional seminal parameters but is associated with a significant reduction in blastocyst yield. These findings support the clinical utility of semen HPV screening and the potential application of advanced sperm washing techniques in assisted reproduction pathways.| File | Dimensione | Formato | |
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https://hdl.handle.net/20.500.12608/119258