https://ogma.newcastle.edu.au/vital/access/ /manager/Index ${session.getAttribute("locale")} 5 https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:42636 Wed 31 Aug 2022 09:32:13 AEST ]]> https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:39561 Wed 27 Jul 2022 14:35:53 AEST ]]> https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:15069 Wed 11 Apr 2018 13:57:41 AEST ]]> https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:48010 Tue 14 Feb 2023 17:45:53 AEDT ]]> https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:43788 Fri 30 Sep 2022 08:32:34 AEST ]]> https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:39668 n = 124) and a group with seminal abnormalities (SAG, n = 136). Evaluation included complete physical examination, past medical history, habits and lifestyle factors, two complete seminal analysis with sperm functional tests, serum levels of 25-hydroxy-vitamin D₃(25(OH)VD₃), total and free testosterone, luteinizing hormone (LH), follicle-stimulating hormone (FSH), sex hormone-binding globulin (SHBG), total cholesterol, homeostatic model assessment of insulin resistance (HOMA-IR) index, and karyotype. The mean concentration of 25(OH)VD₃ was significantly lower in the SAG (P < 0.001) and positively correlated with all baseline seminal parameters and total testosterone levels. In addition, serum vitamin D₃ concentration was found to be positively correlated with sperm concentration (β = 2.103; P < 0.001), total number of spermatozoa with progressive motility (β = 2.069; P = 0.003), total number of motile spermatozoa (β = 2.571; P = 0.015), and strict morphology (β = 0.056; P = 0.006), regardless of other variables. This is the first comparative study to address the issue of serum vitamin D₃ content between normozoospermic patients and those with sperm abnormalities. It clearly demonstrates a direct and positive relationship between serum vitamin D level and overall semen quality, male reproductive potential, and testosterone levels.]]> Fri 17 Jun 2022 15:25:05 AEST ]]> https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:47345 Fri 13 Jan 2023 12:16:37 AEDT ]]> https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:45727 Fri 04 Nov 2022 09:52:06 AEDT ]]>