Volume 2, Issue 2 (7-2004)                   IJRM 2004, 2(2): 82-86 | Back to browse issues page

XML Print

Download citation:
BibTeX | RIS | EndNote | Medlars | ProCite | Reference Manager | RefWorks
Send citation to:
Vahidi A, Kalantar S M, Soleimani M, Amir Arjmand M H, Aflatoonian A, Karimzadeh M A et al . The Relationship between Seasonal Variability and Pregnancy Rates in Women Undergoing Assisted Reproductive Technique. IJRM 2004; 2 (2) :82-86
URL: http://ijrm.ir/article-1-21-en.html
The Relationship between Seasonal Variability and Pregnancy Rates in Women Undergoing Assisted Reproductive Technique
Alireza Vahidi * , Seyed Mehdi Kalantar , Mehrdad Soleimani , Mohammad Hossein Amir Arjmand , Abbas Aflatoonian , Mohammad Ali Karimzadeh , Afsaneh Kermaninejhad
Abstract:   (3148 Views)
Backgrownd: Studies in regions with seasonal climatic variations have revealed a correlation between human natural conception and birth rates. Holidays and other cultural activities probably have influence on conception, but the ambient temperature and emotional influences on the female hormones related to fertility may play an important part in the seasonal variation in conception. Objectives: The aim of study was to determine the relationship between the success rate of Assisted Reproductive Technique (ART) treatment cycles and temperature in different seasons. Materials and Methods: A retrospective study on all individuals undergoing assisted ART at our institution was performed during June 2000 to June 2001. The study population represented 258 IVF-ET cycles and 821 ICSI treatment cycles. Different variables were analyzed using ?2 test. Results: In IVF treatment cycles, conception was more common from early spring (March to June). This decreased from spring, with the minimum in fall, 22% and 14%, respectably. A significant seasonal variability in the number of eggs, embryo transferred and sperm motility was not demonstrated (p>0.05), but sperm count was significantly higher in spring than any other season (72+4 x106 and 52+7x106, respectively). Conclusion: The seasonal changes should be taken into account together with other factors when evaluating infertility data. Article
Keywords: Seasonal variation, Pregnancy rate, IVF-ET, ART, Infertility
Full-Text [PDF 192 kb]   (525 Downloads) |   |   Full-Text (HTML)  (339 Views)  
Type of Study: Original Article |
References
1. Aflatounian., Karimzadeh., Dehghani., Kalantar SM., et al. )2000(. The role of aspiration of half ovarian follicles prior to admistration of hCG or GnRH-a for prevention of severe OHSS in ART programs. Midd East Ferti Soci J 5: 73-75.
2. Bedford, J.M. and Kim, H.H. (1993) Sperm/egg binding patterns and oocyte cytology in retrospective analysis of fertilization failure in vitro. Hum Reprod 8: 453-463. [DOI:10.1093/oxfordjournals.humrep.a138071] [PMID]
3. Cagnacci A ., et al., (2003) Sex ratio at conception shows seasonal variation. Hum Reprod 18: 885-7. [DOI:10.1093/humrep/deg185] [PMID]
4. Edirisinghe WR , Murch A , Junk S and Yovich JI (1997) Cytogenetic abnormalities of unfertilized oocytes generated from in-vitro fertilization and intracytoplasmic sperm injection: a double-blind study. Hum Reprod 12:2784-2791. [DOI:10.1093/humrep/12.12.2784] [PMID]
5. Gavrilov LA, Gavrilova NS (1999) Season of birth and human longevity. J Anti-Aging Med 2:365-366. [DOI:10.1089/rej.1.1999.2.365]
6. Halberg F, Cornelissen G, Otsuka K, et al.(2000) Cross-spectrally coherent ~10.5- and 21-year biological and physical cycles, magnetic storms and myocardial infarctions. Neuroendocrinol Lett 21: 233-258.
7. Halberg F, Cornelissen G, Watanabe Y, et al.(2001) Near 10-year and longer periods modulate circadians: intersecting anti-aging and chronoastrobiological research. J Gerontol A Biol Sci Med Sci 56: M304-M324. [DOI:10.1093/gerona/56.5.M304] [PMID]
8. Heideman PD. (2004). Top-down approaches to the study of natural variation in complex physiological pathways using the white-footed mouse (Peromyscus leucopus) as a model. ILAR J 45:4-13. [DOI:10.1093/ilar.45.1.4] [PMID]
9. Kalnatar SM., Ebrahimi A., Solimani M., Fazli H.(2003) The chromosomal abnormality of failed fertilize human oocytes in an In Vitro Fertilization program. IJRM 1:35-39.
10. Lam, David A., Jeffrey A. Miron. (1994). Global Patterns of Seasonal Variation in Human Fertility. Annals of the New York Academy of Sciences 709:9-28. [DOI:10.1111/j.1749-6632.1994.tb30385.x] [PMID]
11. Lam, David A., Jeffrey A. Miron. (1996). The Effect of Temperature on Human Fertility. Demography 33: 291-305. [DOI:10.2307/2061762] [PMID]
12. Lerchl A, Simoni M, Nieschlag E. (1993) Changes in seasonality of birth rates in Germany from 1951 to 1990. Naturwissenschaften 80:516-8. [DOI:10.1007/BF01140808] [PMID]
13. Paraskevaides EC, Pennington GW, Naik S. (1988) Seasonal distribution in conceptions achieved by artificial insemination by donor. BMJ 297:1309-1310. [DOI:10.1136/bmj.297.6659.1309] [PMID] [PMCID]
14. Peltoniemi OA, Tast A, Love RJ. (2000). Factors effecting reproduction in the pig: seasonal effects and restricted feeding of the pregnant gilt and sow. Anim Reprod Sci 2:173-184. [DOI:10.1016/S0378-4320(00)00092-0]
15. Place NJ, Tuthill CR, Schoomer EE., et al. (2004). Short Day Lengths Delay Reproductive Aging. Biol Reprod 71:987-992. [DOI:10.1095/biolreprod.104.029900] [PMID]
16. Randall W. (1990). The solar wind and human birth rate: a possible relationship due to magnetic disturbances. Int J Biometeorol 34: 42-48. [DOI:10.1007/BF01045819] [PMID]
17. Rivera R. M., Al-Katanani Y. M., Paula-Lopes F. F., and Hansen P. J. (2000). Seasonal Effects on Development of Bovine Embryos Produced by In Vitro Fertilization in a Hot Environment. Journal of Dairy Science 83:305-307 . [DOI:10.3168/jds.S0022-0302(00)74879-X]
18. Rojansky N, Benshushan A, Meirsdorf S, et al.(2000). Seasonal variability in fertilization and embryo quality rates in women undergoing IVF. Fertil Steril 74:476-481. [DOI:10.1016/S0015-0282(00)00669-5]
19. Rojansky N, Brzezinski A, Schenker JG. (1992). Seasonality in human reproduction: an update. Hum Reprod 7:735-745. [DOI:10.1093/oxfordjournals.humrep.a137729] [PMID]
20. Seiver, D.A. (1985). Trend and Variation in the Seasonality of U.S. Fertility, 1947-1976. Demography 22:89-100. [DOI:10.2307/2060988] [PMID]
21. Simon J. (2004). The Annual British Fertility Society Meeting 2004, in Cheltenham, U.K., on March 31. Assisted Reproduction 22.
22. Tuerlings JHAM. (2000). Genetic Aspects of Male Factor Infertility. Durk 189.
23. Weber GW, Prossinger H, Seidler H. (1998). Height depends on month of birth. Nature 391: 754-755. [DOI:10.1038/35781] [PMID]
24. Wehr TA.( 2001) Photoperiodism in humans and other primates: evidence and implications. J Biol Rhythms 16:348-364. [DOI:10.1177/074873001129002060] [PMID]
25. Williams LM, Hannah LT, Bassett JM. (1999) Melatonin receptors in neonatal pig brain and pituitary gland. J Pineal Res 26:43-49. [DOI:10.1111/j.1600-079X.1999.tb00565.x] [PMID]
26. White, M. R., and I. Hertz-Picciotto. (1985) Human health: Analysis of climate related to health. In Characterization of information requirements for studies of CO2 effects: Water resources, agriculture, fisheries, forests and human health, ed. M.R. White, 172-206. [DOI:10.2172/5493376]
27. World Health Organization (1998) WHO Laboratory Manual for the Examination of Human Semen and Sperm-Cervical Mucus Interaction. Cambridge University Press, Cambridge, UK.
Rights and permissions
Creative Commons License This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

Designed & Developed by : Yektaweb