Quantitative karyological analysis of immature germ cells from ejaculate with normal sperm count

Author:

Andreeva M. V.1ORCID,Shtaut M. I.1ORCID,Dobrodeeva L. T.1ORCID,Sorokina T. M.1ORCID,Chernykh V. B.1ORCID,Kurilo L. F.1ORCID

Affiliation:

1. Research Centre for Medical Genetics

Abstract

Introduction. The number of immature germ cells (IGCs) in ejaculate and the ratio of these cells at different stages of their differentiation can reflect meiotic progression and the state of spermatogenesis. Quantitative karyological analysis of immature germ cells from the ejaculate (QKA IGCs) makes it possible to distinguish and analyze all the stages of cell differentiation during spermatogenesis.Purpose. To analyze the spermatogenesis in men with impaired fertility and possible correlation between semen analysis and QKA IGCs parameters. Materials and methods. We analyzed 52 semen samples with normal sperm concentration, normal ejaculate volume and pH. Sperm examination according to WHO criteria and QKA IGCs from the ejaculate were performed (patent of L.F. Kurilo No. 2328736, 2007). According to the number of leukocytes, we divided two groups: a group with normal concentration of leukocytes in the ejaculate (group 1, n = 34) and a group with leukospermia (group 2, n = 18).Results. Increased IGCs index was found in 56 % of the samples in group 1 and 61 % of the samples in group 2. A positive statistically significant correlation was found between the number of spermatocytes I and sperm concentration (group 1), as well as the number of spermatocytes I and morphologically normal spermatozoa (group 2). The average number of non-divided spermatids in group 2 was statistically higher than in group 1. A negative statistically significant correlation was found between the number of non-divided spermatids and the number of morphologically normal spermatozoa, as well as the concentration of germ cells (group 2). Increased IGCs index was found in both pathozoospermia and normozoospermia.Conclusions. The QKA IGCs is an independent method for spermatogenesis evaluation and can be recommended as part of the protocol for examining men with reproductive disorders along with standard semen analysis.

Publisher

Publishing House ABV Press

Subject

Urology,Reproductive Medicine,Surgery

Reference17 articles.

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2. Tomlinson M.J., Barratt C.L., Cooke I.D. Prospective study of leukocytes and leukocyte subpopulations in semen suggests they are not a cause of male infertility. Fertil Steril 1993;60(6):1069–75. DOI: 10.1016/s0015-0282(16)56412-7.

3. Kurilo L.F. Sposob tsitologicheskoi diagnostiki narusheniya spermatogeneza. Patent na izobretenie № 2328736 ot 01.02.2007. [Kurilo L.F. Method of cytological diagnostics of spermatogenetic disorders. Patent No. 2328736 from 01.02.2007. (In Russ.)].

4. Kurilo L.F., Dubinskaya V.P., Ostroumova T.V. i dr. Otsenka spermatogeneza po nezrelym polovym kletkam eyakulyata. Problemy reproduktsii 1995;3:33–8. [Kurilo L.F., Dubinskaya V.P., Ostroumova T.V. et al. Spermatogenesis evaluation using immature sex cells of the ejaculate. Problemy reproduktsii = Russian Journal of Human Reproduction 1995;3:33–8. (In Russ.)].

5. Kurilo L.F., Chebotarev A.N., Shileiko L.V. i dr. Sravnitel'nyi analiz sootnosheniya nezrelykh polovykh kletok na raznykh stadiyakh ikh differentsirovki v bioptate yaichka i eyakulyate u patsientov s azoo- i oligozoospermiei. Problemy reproduktsii 1997;1:80–4. [Kurilo L.F., Chebotarev A.N., Shileyko L.V. et al. Comparative analysis of the ratio between immature sex cells in different differentiation stages in testicular biopsy samples and ejaculates of patients with azoo- and oligozoospermia. Problemy reproduktsii = Russian Journal of Human Reproduction 1997;1:80–4. (In Russ.)].

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