白蛋白XY精蟲分離法

精液置於7.5%-17.5%白蛋白上，一小時後蒐集17.5%白蛋白內之精蟲
可能可得較高比率之X精蟲

http://humrep.oxfordjournals.org/content/17/5/1254.full

Female sex selection using clomiphene citrate and albumin separation of human sperm

1. A.Y. Silverman1, 
2. S.R. Stephens2, 
3. M.T. Drouin3, 
4. R.G. Zack4, 
5. J. Osborne6 and
6. S.A. Ericsson5,,7

+Author Affiliations

1. ¹12 Greenridge Avenue, Suite 400 White Plains, NY 10605,
2. ²Stephens, Turner and Associates, 8160 Walnut Hill Lane, Suite
3. ³24, Dallas, TX 75231, 3Women's Health Center, 287 Main Street, Suite 201 Lewiston, ME 04240,
4. ⁴Midwest Fertility and Sex Selection Center, 18211 West Twelve Mile Road, Lathrup Village, MI 48076,
5. ⁵Department of Animal Science, Box C-11, Sul Ross State University, Alpine, TX 79832, USA and
6. ⁶Birmingham Gender Clinic, Eldon House, Central Square High Street, Erdington, Birmingham B23 6RH, UK

• Received August 18, 2001.
• Revision received October 17, 2001.
• Accepted January 10, 2001.

 

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Abstract

BACKGROUND: This study was undertaken to assess whether the use of clomiphene citrate in conjunction with albumin-separated sperm would alter the sex ratio (expressed as the proportion of males) towards females and, if so, whether this skewing was due solely to the induction of ovulation. METHODS: The sex ratios of 184 single and 42 twin births at five assisted reproduction biology clinics were determined. The normal approximation to the binomial distribution was used to determine significant differences between these sex ratios and the established sex ratios for single, twin and combined (single and twin) non- and ovulation-induced births. RESULTS: The non-ovulation-induced sex ratios for singletons (51.4%) and twins (50.2%) were greater than the treatment singleton (27.7%; P < 0.001) and twin (33.3%; P < 0.01) sex ratios respectively. Correspondingly, the non-induced sex ratio for combined births (51.4%) was greater than the treatment sex ratio (28.8%; P < 0.001). The previously established induced singleton and twin sex ratios (48.1%) were lower than the non-induced sex ratio (51.4%), but higher than the treatment singleton (27.7%; P < 0.001) or twin (33.3%; P < 0.03) sex ratios. The ovulation-induced combined ratio (48.1%) was less than the non-induced combined (51.4%) sex ratio, although greater than the treatment combined sex ratio (28.8%; P < 0.001). CONCLUSION: Clomiphene citrate in conjunction with albumin-separated sperm decreased the sex ratio; a reduction that was not exclusively due to induction of ovulation.