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1.
Journal of Preventive Medicine ; (12): 632-635, 2024.
Article in Chinese | WPRIM | ID: wpr-1039420

ABSTRACT

Objective@#To analyze the semen quality parameters of sperm donor volunteers, so as to provide insights into male infertility control and related research.@*Methods@#A total of 155 sperm donors were recruited from the Human Sperm Bank of Zhejiang Province using the convenience sampling method from January to March 2021. Demographic information were collected through questionnaire surveys. Semen were collected, and parameters including semen volume, sperm concentration, total number of sperm, forward motility rate and total sperm viability were measured. Semen quality was evaluated according to the WHO Laboratory Manual for the Examination and Processing of Human Semen.@*Results@#@*Conclusion@#There were 20.65% of the 155 sperm donors with unqualified semen, and the unqualified rates of forward motility rate and total sperm viability were relatively high.

2.
J Cancer Res Ther ; 2020 May; 16(2): 301-308
Article | IMSEAR | ID: sea-213817

ABSTRACT

Aims: The aim of the study was to determine whether the time to progression (TTP) or time to untreatable progression (TTUP) is an appropriate surrogate endpoint for overall survival (OS) in patients with hepatocellular carcinoma (HCC) after transarterial chemoembolization (TACE). Materials and Methods: Eighty-four patients with Barcelona clinic liver cancer (BCLC) stage B or C HCC underwent TACE. The correlations of TTP and TTUP with OS were evaluated after a log transformation of the indicated values. After identifying independent prognostic factors of TTP, TTUP, and OS, the partial correlations of TTP and TTUP with OS were analyzed in all patients and subgroups. Subsequently, the prognostic value of TTP and TTUP was compared by the multivariate survival analysis of OS. Results: Both the BCLC stage and tumor number were correlated with TTP and TTUP. In addition, the BCLC stage, initial treatment failure, and sorafenib administration were associated with OS. In all patients, the correlation coefficients of TTP and TTUP with OS were 0.559 and 0.789, respectively. Adjustment for independent prognostic factors yielded partial correlation coefficients which were 0.433 and 0.697, respectively. Furthermore, OS was found to be associated with TTUP (P = 0.003; hazard ratio: 0.253; 95% confidence interval: 0.10–0.63) but not with TTP. Conclusion: Untreatable progression is more representative of clinical progression in patients with HCC who underwent TACE. In the current study, TTUP is a more appropriate surrogate endpoint for OS than TTP. Future studies should explore whether untreatable progression is a valuable endpoint event in clinical trials or an indicator of the need for second-line therapy

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