Evidence that mammalian sex ratios at birth are partially controlled by parental hormone levels around the time of conception

Journal of Endocrinology

Volumn 198, Issue 1, 2008, Pages 3-15

  James, William H ^a  

^a UNIVERSITY COLLEGE LONDON   (United Kingdom)

Author keywords

[No Author keywords available]

Indexed keywords

1,2 DIBROMO 3 CHLOROPROPANE; CHLORPHENOTANE; DIETHYLSTILBESTROL; DIOXIN; ENDOCRINE DISRUPTOR; ESTROGEN; FUNGICIDE; GONADOTROPIN; HLA B ANTIGEN; LEAD; METHYLTESTOSTERONE; POLYCHLORINATED BIPHENYL; TESTOSTERONE;

ARTICLE; BREAST CANCER; CHILDBIRTH; CONCEPTION; CONGENITAL MALFORMATION; CORPUS CALLOSUM; ECTOPIC PREGNANCY; ENVIRONMENTAL EXPOSURE; ESTRUS CYCLE; EVIDENCE BASED PRACTICE; EXPERIMENTAL STUDY; FINGER; GONAD; GYNECOLOGIC DISEASE; HEAT STRESS; HELIGMOSOMOIDES POLYGYRUS; HOME CARE; HORMONE BLOOD LEVEL; HUMAN; HYPEREMESIS GRAVIDARUM; INTRAUTERINE INSEMINATION; LIPID DIET; MENSTRUAL CYCLE; NONHUMAN; OBSERVATIONAL STUDY; OCCUPATIONAL EXPOSURE; OVULATION; PERSONALITY; PLACENTA PREVIA; PRIORITY JOURNAL; PROGENY; SEMEN ANALYSIS; SEX RATIO; SEXUAL MATURATION; TESTOSTERONE BLOOD LEVEL; TOXOPLASMA GONDII; TOXOPLASMOSIS;

ANIMALS; DDT; FEMALE; FINGERS; GONADAL STEROID HORMONES; HEPATITIS B; HLA-B ANTIGENS; HUMANS; MALE; OVULATION INDUCTION; PLACENTA PREVIA; PREGNANCY; SEX RATIO; TETRACHLORODIBENZODIOXIN; TIME FACTORS; TOXOPLASMOSIS;

EID: 47849129271     PISSN: 00220795     EISSN: 14796805     Source Type: Journal    
DOI: 10.1677/JOE-07-0446     Document Type: Article

References (156)

1. Alexenko AP, Mao J, Ellersieck MR, Davis AM, Whyte JR, Rosenfeld CS & Roberts RM 2007 The contrasting effects of ad libitum feeding of a diet very high on saturated fats on sex ratio and metabolic hormones in mice. Biology of Reproduction 77 599-604.
2. Arena JFP & Smith DW 1978 Sex liability to single structural defects. American Journal of Diseases of Children 132 970-972.
3. Askling J, Erlandsson G, Kaijser M, Akre O & Ekbom A 1999 Sickness in pregnancy and sex of child. Lancet 354 2053.
4. Astolfi P, Cuccia M & Martinetti M 2001 Paternal HLA genotype and offspring sex ratio. Human Biology 73 315-319.
5. Barber B 1961 Resistance of scientists to scientific discovery. Science 134 596-602.
6. Barnard CJ, Behnke JM, Gage AR, Brown H & Smithurst PR 1998 The role of parasite-induced immunodepression, rank and social environment in the modulation of behaviour and hormone concentrations in male laboratory mice (Mus musculus). Proceedings of the Royal Society of London. Series B 265 693-701.
7. Beral V & the Million Women Study Collaborators 2003 Breast cancer and hormone replacement therapy: the Million Women Study. Lancet 362 419-427.
8. Berger PJ, Negus NC & Rowsemitt CN 1987 Effect of 6-methoxybenzoxazolinone on sex ratio and breeding performance in Microtus montanus. Biology of Reproduction 36 255-260.
9. Blumberg BS 2006 The curiosities of hepatitis B virus: prevention, sex ratio and demography. Proceedings of the American Thoracic Society 3 14-20.
10. Bodmer WF & Edwards AWF 1960 Natural selection and the sex ratio. Annals of Human Genetics 24 239-244.
11. Brooks RJ, James WH & Gray E 1991 Modelling sub-binomial variation in the frequency of sex combinations in litters of pigs. Biometrics 47 403-417.
12. Cameron EZ & Linklater WL 2007 Extreme sex ratio variation in relation to change in condition around conception. Biology Letters 3 395-397.
13. Catalano R, Bruckner T, Marks AR & Eskenazi B 2006 Exogenous shocks to the human sex ratio: the case of September 11th, 2001 in New York City. Human Reproduction 21 3127-3131.
14. Chahnazarian A, Blumberg BS & London WT 1988 Hepatitis B and the sex ratio at birth: a comparative analysis of four populations. Journal of Biosocial Science 20 357-370.
15. Chang BL, Robbins WA, Wei F, Xun L, Wu G & Elashoff DA 2006 Boron workers in China: exploring work and lifestyle factors related to boron exposure. American Association of Occupational Health Nurses Journal 54 435-443.
16. Chaudhuri A, Ghosh D, Chatterjee AK, Biswas NM & Ghosh PK 1991 Adrenal corticosteroidogenesis after removal of ventral prostate gland. Experientia 47 86-88.
17. Chow PH, Cheung MPL & O WS 1996 Increased secondary sex ratios in golden hamster litters sired by males without coagulatory glands and seminal vesicles. Reproduction, Fertility, and Development 8 297-300.
18. Christiansen K 2004 Behavioural correlates of testosterone. In Testosterone: Action. Deficiency. Substitution Eds E Nieschlag, HM Behre & S Nieschlag. Cambridge, UK: Cambridge University Press, pp 125-172.
19. Clark AJL & Davis JRE 2008 Editorial. Journal of Endocrinology 198 1.
20. Clark MM & Galef BG 1988 Effects of uterine position on rate of sexual development in female Mongolian gerbils. Physiology and Behavior 42 15-18.
21. Clark MM & Galef BG 1994 Reply. Nature 367 328.
22. Clark MM, Spencer CA & Galef BG 1986 Reproductive life history correlates of early and late sexual maturation in Mongolian gerbils (Meriones unguiculatus). Animal Behaviour 34 551-560.
23. Clark MM, Karpiuk P & Galef BG 1993 Hormonally mediated inheritance of acquired characteristics in Mongolian gerbils. Nature 364 712.
24. Clutton-Brock TH & Lason GR 1986 Sex ratio variation in mammals. Quarterly Review of Biology 61 339-374.
25. Cocco P, Fadda D, Ibba A, Melis M, Tocca MG, Atzeri S, Avatanec G, Meloni M, Monni F & Flore C 2005 Reproductive outcome in DDT applicators. Environmental Research 98 120-126.
26. Collins JA, Blake JM & Crosignani PG 2005 Breast cancer risk with postmenopausal hormonal treatment. Human Reproduction Update 11 545-560.
27. Cutolo M & Accardo S 1991 Sex hormones, HLA and rheumatoid arthritis. Clinical and Experimental Rheumatology 9 641-646.
28. Depue RH, Bernstein L, Ross RK, Judd HL & Henderson B 1987 Hyperemesis gravidarum in relation to estradiol levels, pregnancy outcome and other maternal factors: a sero-epidemiological study. American Journal of Obstetrics and Gynecology 156 1137-1141.
29. Dickinson H & Parker L 1994 Do alcohol and lead change the sex ratio? Journal of Theoretical Biology 169 313.
30. Edmonds C & Hayward L 1987 Intellectual impairment with diving: a review. Ninth International Symposium on Underwater and Hyperbaric Physiology. Undersea and Hyperbaric Medical Society, Bethesda, Maryland pp 877-886.
31. Edwards AWF 1958 An analysis of Geissler's data on the human sex ratio. Annals of Human Genetics 23 6-15.
32. Egeland GM, Sweeney MH, Fingerhut MA, Wille KK, Schnorr TM & Halperin WE 1994 Total serum testosterone and gonadotropins in workers exposed to dioxins. American Journal of Epidemiology 139 272-281.
33. Ehman KD & Scott ME 2002 Female mice mate preferentially with non-parasitized males. Parasitology 125 461-466.
34. Figa-Talamanca I, Tarquini M & Lauria L 2003 Is it possible to use sex ratio at birth as indicator of the presence of endocrine disruptors in environmental pollution? (In Italian) Giornale Italiano di Medicina Del Lavoro ed Ergonomia 25(Suppl 3) 52-53.
35. Flegr J, Hruskova M, Hodny Z, Novotna M & Hanusova J 2005 Body height, body mass index, waist-hip ratio, fluctuating asymmetry and second to fourth digit ratio in subjects with latent toxoplasmosis. Parasitology 130 621-628.
36. Fountain ED, Mao J, Whyte JJ, Mueller KE, Ellersieck MR, Will LJ, Roberts RM, Macdonald R & Rosenfeld CS 2007 Effects of diets enriched in omega-3 and omega-6 polyunsaturated fatty acids on offspring sex ratio and maternal behaviour in mice. Biology of Reproduction (Epub 10.10.07).
37. Garry VF, Harkins ME, Erickson LL, Long-Simpson LK, Holland SE & Burroughs BL 2002a Birth defects, season of conception and sex of children born to pesticide applicators living in the Red River Valley of Minnesota, USA. Environmental Health Perspectives 110(Suppl 3) 441-449.
38. Garry VF, Harkins M, Lyubimov A, Erickson L & Long L 2002b Reproductive outcomes in the women of Red River Valley ofthe North. 1. The spouses of pesticide applicators: pregnancy loss, age at menarche and exposure to pesticides. Journal of Toxicology and Environmental Health 65 769-786.
39. Garry VF, Holland SE, Erickson LL & Burroughs BL 2003 Male reproductive hormones and thyroid function in pesticide applicators in the Red River Valley of Minnesota. Journal of Toxicology and Environmental Health. Part A 66 965-986.
40. Gini C 1955 Sulla probabilita che x termini di una serie erratica sieno crescenti (o non decrescenti) ovvero tutti decrescenti (or non crescenti) con applicazioni ai rapporti dei sessi nascite umane in intervalli successivi e alle disposizioni dei sessi nelle fratellanze umane. Metron 17 1-41.
41. Giusti RM, Iwamoto K & Hatch EE 1995 Diethylstilbestrol revisited: a review of the long-term health effects. Annals of Internal Medicine 122 778-788.
42. Gomendio M, Malo, AF, Soler AJ, Fernandez-Santos MR, Esteso MC, Garcia AJ, Roldan ER & Garde J 2006 Male fertility and sex ratio at birth in red deer. Science 314 1445-1447.
43. Grant V 1994 Maternal dominance and the conception of sons. British Journal of Medical Psychology 67 343-351.
44. Grant VJ 2007 Could maternal testosterone levels govern mammalian sex ratio deviations? Journal of Theoretical Biology 246 708-719.
45. Grant VJ & France JT 2001 Dominance and testosterone in women. Biological Psychology 58 41-47.
46. Grant VJ & Irwin RJ 2005 Follicular fluid steroid levels and subsequent sex of bovine embryos. Journal of Experimental Zoology 303A 1120-1125.
47. Gundy S, Babosa M, Baki M & Bodrigi I 2004 Increased predisposition to cancer in brothers and offspring of testicular tumor patients. Pathology Oncology Research 10 197-203.
48. Gutierrez-Adan A 2001 Influence of glucose on the sex ratio of bovine IVM/IVF embryos cultured in vitro. Reproduction, Fertility, and Development 13 361-365.
49. Harris JA, Vernon PA & Boomsma DI 1998 The heritability of testosterone: a study of Dutch adolescent twins and their parents. Behavior Genetics 28 165-171.
50. Hedricks C & McClintock MK 1990 Timing of insemination is correlated with the secondary sex ratio of Norway rats. Physiology and Behavior 48 625-632.
51. Hillgarth N & Wingfield JC 1997 Parasite-mediated sexual selection: endocrine aspects. In Host-Parasite Evolution Eds DH Clayton & J Moore. New York: Oxford University Press, pp 78-104.
52. Hodges LC, Bergerson JS, Hunter DS & Walker CL 2000 Estrogenic effects of organochlorine pesticides on uterine leiomyoma cells in vitro. Toxicological Sciences 54 355-364.
53. Hodlova H, Kolbekova P, Skallova A, Lindova J & Flegr J 2007 Higher perceived dominance in Toxoplasma infected men - new evidence for role of testosterone in toxoplasmosis-associated changes in human behaviour. Neuroendocrinology Letters 28 101-105.
54. Hsu CD & Witter FR 1993 Fetal sex and severe hyperemesis gravidarum. International Journal of Gynaecology and Obstetrics 40 63-64.
55. Hwang SY, Kim W-J, Wee J-J, Choi J-S & Kim S-K 2004 Panax ginseng improves survival and sperm quality in guinea pigs exposed to 2,3,7,8- tetrachlorodibenzo-p-dioxin. BJU International 94 663-668.
56. Ideta A, Hayama K, Urakawa M, Jung YG, Lim KT, Lee WY, Song HB & Aoyagi Y 2007 Relationships among estrus behaviour, superovulatory response and Grade 1 embryo sex ratio in superovulated Holstein heifers. Journal of Reproduction and Development.
57. Ishihara K, Warita K, Tanida T, Sugawara T, Kitagawa H & Hoshi N 2007 Does paternal exposure to 2,3,7,8-tetrachlorodibenzo-p-dioxin affect the sex ratio of offspring? Journal of Veterinary Medical Science 69 347-352.
58. Jacobsen R, Bostofte E, Skakkebaek NE, Hansen J & Moller H 2000a Offspring sex ratio of subfertile men and men with abnormal sperm characteristics. Human Reproduction 15 2369-2370.
59. Jacobsen R, Bostofte E, Engholm G, Hansen J, Skakkebaek NE & Moller H 2000b Fertility and offspring sex ratio of men who develop testicular cancer: a record linkage study. Human Reproduction 15 1958-1961.
60. James WH 1980 Gonadotrophin and the human secondary sex ratio. BMJ 281 711-712.
61. James WH 1985a The sex ratio of infants born after hormonal induction of ovulation. British Journal of Obstetrics and Gynaecology 92 299-301.
62. James WH 1985b The sex ratio of infants born after hormonal induction of ovulation: author's replies. British Journal of Obstetrics and Gynaecology 92 993-996.
63. James WH 1986 Hormonal control of sex ratio. Journal of Theoretical Biology 118 427-441.
64. James WH 1987 The human sex ratio. Part 1: a review of the literature. Human Biology 59 721-752.
65. James WH 1989 Parental hormone levels and mammalian sex ratios at birth. Journal of Theoretical Biology 139 59-67.
66. James WH 1992 The hypothesized hormonal control of mammalian sex ratio at birth - a second update. Journal of Theoretical Biology 155 121-128.
67. James WH 1995a Sex ratios of offspring and the causes of placental pathology. Human Reproduction 10 1403-1406.
68. James WH 1995b Re: total serum testosterone and gonadotropins in workers exposed to dioxins. American Journal of Epidemiology 141 476-477.
69. James WH 1995c What stabilizes the sex ratio? Annals of Human Genetics 59 243-249.
70. James WH 1996 Evidence that mammalian sex ratios at birth are partially controlled by parental hormone levels at the time of conception. Journal of Theoretical Biology 180 271-286.
71. James WH 1997 A potential mechanism for sex ratio variation in mammals. Journal of Theoretical Biology 189 253-255.
72. James WH 1998a The sex ratio of offspring of people exposed to boron. Reproductive Toxicology 12 673.
73. James WH 1998b Hypothesis: one cause of polydactyly. Journal of Theoretical Biology 192 1-2.
74. James WH 1999 Is transposition of the great arteries a consequence of maternal hormone imbalance? Evidence from the sex ratios ofthe relatives of probands. Journal of Theoretical Biology 198 301-303.
75. James WH 2000a Analysing data on the sex ratio of human births by cycle day of conception. Human Reproduction 15 1206-1207.
76. James WH 2000b The sex ratio of children born to women with dermatoses of pregnancy. British Journal of Dermatology 143 1345.
77. James WH 2000c Are oral clefts a consequence of maternal hormone imbalance? Evidence from the sex ratios of siblings of probands. Teratology 62 342-345.
78. James WH 2001a The data sources which may help strengthen the epidemiological evidence for the hormonal hypothesis of sex determination in man. Human Reproduction 16 1081-1085.
79. James WH 2001b Finger length ratios, sexual orientation and offspring sex ratios. Journal of Theoretical Biology 212 273-274.
80. James WH 2001c The associated offspring sex ratios and cause(s) of hyperemesis gravidarum. Acta Obstetrica et Gynecologica Scandinavica 80 378-379.
81. James WH 2001d The sex ratio of births associated with placenta praevia. Journal of Obstetrics and Gynaecology 21 160-161.
82. James WH 2004a Further evidence that mammalian sex ratios at birth are partially controlled by parental hormone levels around the time of conception. Human Reproduction 19 1250-1256.
83. James WH 2004b possible cause of pyloric stenosis. Birth Defects Research. Part A, Clinical and Molecular Teratology 70 37-39.
84. James WH 2006a Are there preconceptual determinants of mammalian sex? A response to Boklage (2005) Human Reproduction 21 2486-2490.
85. James WH 2006b Offspring sex ratios at birth as markers of paternal endocrine disruption. Environmental Research 100 77-85.
86. James WH 2006c Sex ratios of offspring of patients with breast cancer and other endocrine related cancers. International Journal of Cancer 119 2710-2711.
87. James WH 2006d Possible constraints on adaptive variation in sex ratio at birth in humans and other primates. Journal of Theoretical Biology 238 383-394.
88. James WH 2007 Testosterone and male fertility in red deer. Science 316 980-981.
89. James WH 2008 Further evidence that some male-biased neurodevelopmental disorders are associated with high intrauterine testosterone concentrations. Developmental Medicine and Child Neurology.
90. Jansen RPS 1984 Endocrine response in the Fallopian tube. Endocrine Reviews 5 525-551.
91. Jimenez A, Fernandez R, Madrid BN, Moreira PN, Borque C, Pintado B & Gutierrez AA 2003 Experimental demonstration that pre- and post- conceptional mechanisms influence sex ratio in mouse embryos. Molecular Reproduction and Development 66 162-165.
92. Kankova S, SulcJ, Nouzova K, Fajfrlik K, Frynta D & FlegrJ 2007a Women infected with parasite Toxoplasma have more sons. Naturwissenschaften 94 122-127.
93. Kankova S, Kodym P, Frynta D, Vavrinova R, Kubena A & Flegr J 2007b Influence of latent toxoplasmosis on the secondary sex ratio in mice. Parasitology (In press).
94. Keulers MJ, Hamilton CJCM, Franx A, Evers JLH & Bots RSGM 2007 The length of the fertile window is associated with the chance ofspontaneously conceiving an ongoing pregnancy in subfertile couples. Human Reproduction 22 1652-1656.
95. Khanjani N & Sim MR 2006 Maternal contamination with dichlorodiphenyl-trichloroethane and reproductive outcomes in an Australian population. Environmental Research 101 373-379.
96. Leplow B, Tetzlaff K, Holl D, Zeng L & Reuter M 2001 Spatial orientation in construction divers - are there associations with diving experience? Archives of Environmental and Occupational Health 74 189-198.
97. Lubinsky MS 1997 Classifying sex-biased congenital anomalies. American Journal of Medical Genetics 69 225-228.
98. Lyster WR 1982 Altered sex ratio in children of divers. Lancet ii 152.
99. Mandal PK 2005 Dioxin: a review of its environmental effects and its aryl hydrocarbon receptor biology. Journal of Comparative Physiology 'B' - Biochemical, Systematic and Environmental Physiology 175 221-230.
100. Manning JT 2002 Digit Ratio: A Pointer to Fertility, Behavior and Health., London: Rutgers University Press.
101. Manning JT, Scutt D, Wilson J & Lewis-Jones DI 1998 The ratio of 2nd to 4th digit length: a predictor of sperm numbers and concentrations of testosterone, luteinizing hormone and oestrogen. Human Reproduction 13 3000-3004.
102. Manning JT, Martin S, Trivers RL & Soler M 2002 2nd to 4th digit ratio and offspring sex ratio. Journal of Theoretical Biology 217 93-96.
103. Martin SA, Harlow SD, Sowers F, Longnecker MP, Garabrant D, Shore DL & Sandler DP 2002 DDT metabolite and androgens in African American farmers. Epidemiology 13 454-458.
104. Marx PA, Spira AI, Gettie A, Dailey PJ, Veazey RS, Lackner AA, Mahoney CJ, Miller CJ, Claypool LE, Ho DD et al. 1996 Progesterone implants enhance SIV vaginal transmission and early virus load. National Medicine 2 1084-1089.
105. Matsumoto AM, Paulsen CA, Hopper BR & Rebar RW 1983 Human chorionic gonadotropin and testicular function: stimulation of testosterone, testosterone precursors and sperm production despite high estradiol levels. Journal of Clinical Endocrinology and Metabolism 56 720-728.
106. Mazzur S & Watson TM 1974 Excess males among siblings of Australia antigen carriers. Nature 250 60-61.
107. McQueen D, Kent G & Murrison A 1994 Self-reported and long-term effects of diving and decompression illness in recreational SCUBA divers. British Journal of Sports Medicine 28 101-104.
108. Menendez JA, Colomer R & Lupu R 2004 Omega-6 polyunsaturated fatty acid gamma-linolenic acid (18: 3n-6) is a selective estrogen response modulator in human breast cancer cells: gamma-linolenic acid antagonizes estrogen receptor-dependent transcriptional activity, transcriptionally represses estrogen receptor expression and synergistically enhances tamoxifen and ICI 182,780 (Faslodex) efficacy in human breast cancer cells. International Journal of Cancer 109 949-954.
109. Mocarelli P, Brambilla P, Gerthoux PM, Patterson DG & Needham LL 1996 Change in sex ratio with exposure to dioxin. Lancet 348 409.
110. Mocarelli P, Gerthoux PM, Ferrari E, Patterson DG, Kieszak SM, Brambilla P, Vincoli N, Signorini S, Tramacere P, Carreri V et al. 2000 Paternal concentrations of dioxin and sex ratio of offspring. Lancet 355 1858-1863.
111. Moller H 1998 Trends in sex ratio, testicular cancer and male reproductive hazards: are they connected? Acta Pathologica, Microbiologica, et Immunologica Scandinavica 106 232-239.
112. Mondal M, Rajkhowa C & Prakash BS 2006 Relationship of estradiol-17 beta, total estrogen and progesterone to estrus behaviour in mithun ( Bos frontalis) cows. Hormones and Behavior 49 626-633.
113. Nunez JL & Juraska JM 1998 The size of the splenium of the rat corpus callosum: influence of hormones, sex ratios and neonatal cryoanesthesia. Developmental Psychobiology 33 295-303.
114. Ollier W, Spector T, Silman A, Perry L, Ord J, Thomson W & Festenstein H 1989 Are certain HLA haplotypes responsible for low testosterone levels in males? Disease Markers 7 139-143.
115. Olsson H 1984 Epidemiological studies in malignant lymphoma with special reference to occupational exposure to organic solvents and to reproductive factors. Doctoral Dissertation Presented to the University of Lund.
116. Olsson H & Brandt L 1982 Sex ratio in offspring ofpatients with non-Hodgkin lymphoma. New England Journal of Medicine 306 367.
117. Orban JE, Stanley JS, Schwemberger JG & Rennners JC 1994 Dioxins and dibenzofurans in adipose tissue of the general USA population and selected subpopulations. American Journal of Public Health 84 439-445.
118. Oster E 2005 Hepatitis B and the case of the missing women. Journal of Political Economy 113 1163-1216.
119. Padron RS, Wischusen J, Hudson B, Burger HG & De Kretser DM 1980 Prolonged biphasic response of plasma testosterone to single intramuscular injections of human chorionic gonadotropin. Journal of Clinical Endocrinology and Metabolism 50 1100-1104.
120. Paltieli Y, Eibschitz I, Ziskind G, Ohel G, Silbermann M & Weichselbaum A 2000 High progesterone levels and ciliary dysfunction - a possible cause of ectopic pregnancy. Journal of Assisted Reproduction and Genetics 17 103-106.
121. Paul A & Kuester J 1987 Sex ratio adjustment in a seasonally breeding primate species: evidence from the Barbary macaque population at Affenberg Salem. Ethology 74 117-132.
122. Perez-Crespo M, Pintado, B & Gutierrez-Adan A 2007 Scrotal heat stress effects on sperm viability, sperm DNA integrity and the offspring sex ratio in mice. Molecular Reproduction and Development.
123. Perret M 1986 Social influences on oestrous cycle length and plasma progesterone concentrations in the female lesser mouse lemur (Microcebus murinus). Journal of Reproduction and Fertility 77 300-311.
124. Perret M 1990 Influence of social factors on sex ratio at birth, maternal investment and young survival in a prosimian primate. Behavioral Ecology and Sociobiology 27 447-454.
125. Perret M 1996 Manipulation of sex ratio at birth by urinary cues in a prosimian primate. Behavioral Ecology and Sociobiology 38 259-266.
126. Perret M & Colas S 1997 Manipulation of sex ratio at birth and maternal investment in female mouse lemurs (Microcebus murinus, Primates). Applied Animal Behaviour Science 51 275-283.
127. Perry MJ, Ouyang F, Korrick SA, Venners SA, Chen C, Xu X, Lasley BL & Wang X 2006 A prospective study of serum DDT and progesterone and estrogen levels across the menstrual cycle in nulliparous women of reproductive age. Americanjournal of Epidemiology 164 1056-1064.
128. Petersen PM, Skakkebaek NE, Vistisen K, Rorth M & Giwercman A 1999 Semen quality and reproductive hormones in men with testicular cancer. Journal of Clinical Ontology 17 941-947.
129. Piazze J, Nigro G, Mazzocco M, Marchiani E, Brancato V, Anceschi MM & Cosmi EV 1999 The effect of primary cytomegalovirus infection on fetal lung maturity indices. Early Human Development 54 137-144.
130. Potashnik G & Yanai-Inbar I 1987 Dibromochloropropane (DBCP): an 8-year re-evaluation of testicular function and reproductive performance. Fertility and Sterility 47 317-323.
131. Pratt NC, Huck UW & Lisk RD 1987 Offspring sex ratio in hamsters is correlated with vaginal pH at certain times of mating. Behavioral and Neural Biology 48 310-316.
132. Rhouma KB, Tebourbi O, Krichah R & Sakly M 2001 Reproductive toxicity of DDT in adult male rats. Human and Experimental Toxicology 20 393-397.
133. Robbins WA, Wei F, Elashoff DA, Wu G, Xun L & Jia J 2007 Y:X sperm ratio in boron-exposed men. Journal of Andrology.
134. Rockert HOE 1977 Changes in the vascular bed in testes of rats exposed to air at 6 atmospheres absolute pressure. IRCS Journal of Mediral Science 5 107.
135. Rockert HOE & Haglid K 1983 Reversible changes in the rate of DNA synthesis in the testes of rats after daily exposure to a hyperbaric environment of air. IRCS Journal of Medical Science 11 531.
136. Rockert HOE, Damber J-E & Janson PO 1978 Testicular blood flow and plasma testosterone concentrations in anesthetized rats previously exposed to air at 6 ATA. Undersea Biomedical Research 5 355-361.
137. Rosenfeld CS, Grimm KM, Livingston KA, Brokman AM, Lamberson WE & Roberts RM 2003 Striking variation in the sex ratio of pups born to mice according to whether maternal diet is high in fat or carbohydrate. PNAS 100 4628-4632.
138. Ross JAS, Macdiarmid JI, Osman LM, Watt SJ, Godden DJ & Lawson A 2007 Health status of professional divers and offshore oil industry workers. Occupational Medicine 57 254-261.
139. Sas M & Szollosi J 1980 The sex ratio of children of fathers with spermatic disorders following hormone therapy (in Hungarian). Orvosi Hetilap 121 2807-2808.
140. Schadler MH, Butterstein GM, Faulkner BJ, Rice SC & Weisinger LA 1988 The plant metabolite 6-methoxybenzoxazolinone stimulates an increase in secretion of FSH and size of reproductive organs in Microtus pinetorum. Biology of Reproduction 38 817-820.
141. Schiphorst LEM, Collins WP & Royston JP 1985 An estrogen test to determine the times of potential fertility in women. Fertility and Sterility 44 328-334.
142. Schutzenberger MP 1950 Nouvelles recherches sur la distribution du sexe a la naissance. La Semaine des Hopitaux 26 4458-4465.
143. Shields MD, O'Hare B, Nelson J, Stewart MC & Coyle P 2002 Maternal cytomegalovirus seropositivity. BMJ 325 335.
144. Short RV 2006 New ways of preventing HIV infection: thinking simply, simply thinking. Philosophical Transactions of the Royal Society of London. Series B: Biological Sciences 361 811-820.
145. Simonsen CR, Roge R, Christiansen V, Larsen T & Bonde JP 2006 Effects of paternal blood lead levels on offspring sex ratio. Reproductive Toxicology 22 3-4.
146. Smith SM, Baskin GB & Marx PA 2000 Estrogen protects against vaginal transmission of simian immunodeficiency virus. Journal of Infectious Diseases 180 708-715.
147. Speir E, Yu ZX, Takeda K, Ferrans VJ & Cannon RO 2000 Antioxidant effect of estrogen on cytomegalovirus-induced gene expression in coronary artery smooth cells. Circulation 102 2990-2996.
148. Trivers RL & Willard DE 1973 Natural selection of parental ability to vary the sex ratio of offspring. Science 179 90-91.
149. Vandenbergh JG & Huggett CL 1994 Mother's prior intrauterine position affects the sex ratio of her offspring in house mice. PNAS 91 11055-11059.
150. Verme LJ & Ozoga JJ 1981 Sex ratio of white-tailed deer and the estrus cycle. Journal of Wildlife Management 45 710-715.
151. Whorton D, Krauss RM, Marshall S & Milby TH 1977 Infertility in male pesticide workers. Lancet ii 1259-1261.
152. Whorton D, Milby TH, Krauss RM & Stubbs HA 1979 Testicular function in DBCP exposed workers. Journal of Occupational Medicine 21 161-166.
153. Whyte JJ, Alexenko AP, Davis AM, Ellersieck MR, Fountain ED & Rosenfeld CS 2007 Maternal diet composition alters serum steroid and free fatty acid concentrations and vaginal pH in mice. Journal of Endocrinology 192 75-81.
154. Wise LA, Palmer JR, Hatch EE, Troisi R, Titus EL, Herbst AL et al. 2007 Secondary sex ratio among women exposed to diethylstilbestrol in utero. Environmental Health Perspectives 115 1314-1319.
155. Yuan JM, Ross RK, Stanczyk FZ, Govindarajan S, Gao YT, Henderson BE & Yu MC 1995 A cohort study of serum testosterone and hepatocellular carcinoma in Shanghai, China. International Journal of Cancer 63 491-493.
156. Zhang L, Du WH, Chen H, Zhao JH, Pei J & Lin XK 2006 Impact of reproductive hormones on mouse embryo sexes. Fen Zi Xi Bao Sheng Wu Xue Bao 39 573-577.