Whither must spermatozoa wander? The future of laboratory seminology.

نویسنده

  • R John Aitken
چکیده

This commentary celebrates the publication of the 5th edition of the World Health Organization Laboratory Manual for the Examination and Processing of Human Semen. This is the most complete text to date on the creation of a conventional semen profile and includes invaluable reference limits for specific aspects of semen quality based on the analysis of over 1 900 recent fathers. The new edition of the manual also includes detailed protocols for monitoring different aspects of sperm function and new chapters on the preparation of spermatozoa for assisted conception and cryopreservation. Given that this publication is the definitive statement on how to perform a descriptive semen analysis, we might speculate on the future of this field and the sorts of tests that might feature in future editions of the manual. Cell biologists are currently being empowered by the 'omics revolution, which is placing at their disposal technologies of unprecedented power to examine the biochemical composition of cells such as spermatozoa. Indeed, spermatozoa are perfect vehicles for this kind of analysis because they can be obtained as extremely pure suspensions, exist naturally in isolation and can be induced to express their capacity for fertilization and the initiation of embryonic development in vitro. The application of 'omics technologies to these cells, in concert with detailed assessments of their functional competence, should provide insights into the biochemical basis of defective semen quality. This information will then help us understand the causes of male infertility and to develop rational methods for its treatment and possible prevention.

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Fertility in men with primary ciliary dyskinesia presenting with respiratory infection.

BACKGROUND Primary ciliary dyskinesia is characterised by chronic rhinosinusitis, chronic bronchial sepsis (usually with bronchiectasis), dextrocardia in approximately 50% of cases, and male infertility. The latter, described in patients attending infertility clinics, results from immotile but viable spermatozoa. Experience in a respiratory clinic suggests that infertility in men is not invaria...

متن کامل

I-15: Effects of Oxidative Stress on Sperm Function

Semen analysis is the frontline and old reliable test in the assessment of male fertility, but it failed to provide absolute prediction of sperm function and its fertilizing ability. A wide variety of internal and external factors affect sperm function without discernible and significant effects on semen analysis. Oxygen toxicity and oxidative stress (OS) are inherent challenge of living cells ...

متن کامل

Impact of Reactive Oxygen Species on Spermatozoa: ABalancing Act between Beneficial and Detrimental Effects

Reactive oxygen species (ROS)plays an important role in sperm motility. The physiological generation at low concentration induces beneficial effects on sperm functions and plays a significant role in sperm metabolism. Meanwhile, the excessive generation of reactive oxygen species can overwhelm protective mechanism and triggers changes in lipid and protein layers of sperm plasma membrane, which ...

متن کامل

Tolnidamine-Induced Changes in the Testis, Sperm Count, Fertility and Accessory Sex Glands of the Laboratory Mouse

Background Tolnidamine-induced changes have been reported earlier on spermatogenesis, fertility and sperm count in rat, rabbit and langur monkey. The aim of this study is to assess the response of these aspects to tolnidamine in the laboratory mouse. MaterialsAndMethods Adult male mice (12-14 weeks old) of Parkes (P) strain were used in the present study. All the animals were divided into five ...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

عنوان ژورنال:
  • Asian journal of andrology

دوره 12 1  شماره 

صفحات  -

تاریخ انتشار 2010