非职业接触人群中不育夫妇卵泡液及精液中4种重金属元素的含量测定

目的:探讨非职业接触人群中不育夫妇卵泡液和精液中4种重金属:铅、镉、锌和锰的含量。方法:女性行IVF-ET操作,常规取卵后收集卵泡液,丈夫手淫法留取精液,用火焰原子吸收法测定卵泡液及精液中的锌含量,用石墨炉原子吸收法测定铅、镉和锰含量。结果:铅、镉、锌和锰的测定均值在卵泡液中分别是(151.06±421.03)μg/L、(2.02±2.79)μg/L、(0.54±0.55)mg/L和(28.54±50.90)μg/L,在精液中分别是(250.23±600.88)μg/L、(7.42±15.84)μg/L、(189.11±283.08)mg/L和(82.15±202.65)μg/L;检出率在卵泡液中分别为43.8%(21/48)、22.9%(11/48)、75.0%(36/48)和50.0%(24/48),在精液中分别为70.2%(33/47)、31.9%(15/47)、100.0%(47/47)和46.8%(22/47)。结论:精液中4种重金属元素含量均高于卵泡液,检出率除锰以外,也均以精液为高。

Contents of Lead, Cadmium, Zinc and Manganese in the Follicular Fluid and Semen of Non-professionally Exposed Infertile Couples

OBJECTIVE: To investigate the contents of lead, cadmium, zinc and manganese in the follicular fluid and semen of infertile couples that are not professionally exposed to the four heavy metallic elements. METHODS: In vitro fertilization pre-embryo transfer (IVF-ET) was carried out in wives, and follicular fluid collected after routine oocyte retrieval. Semen was obtained from husbands by masturbation. The contents of zinc in the follicular fluid and semen were determined by the flame atom absorption method and those of lead, cadmium and manganese by graphite furnace atomic absorption spectrometry. RESULTS: The average concentrations of lead, cad- mium, zinc and manganese were 151.06 microg/L, 2.02 microg/L, 0.54 mg/L and 28.54 microg/L in the follicular fluid, and 250.23 microg/L, 7.42 microg/L, 189.11 mg/L and 82.15 microg/L in the semen. The follicular fluid samples in which lead, cadmium, zinc or manganese was detected constituted 43.8% (21/48), 22.9% (11/48), 75.0% (36/48) and 50.0% (24/48), and the semen samples accounted for 70.2% (33/47), 31.9% (15/47), 100.0% (47/47) and 46.8% (22/47), respectively. CONCLUSION: The results suggest that the average contents of lead, cadmium, zinc and manganese are higher in the semen than in the follicular fluid in the non-professionally exposed infertile couples, and so is the percentage of the samples containing each of the elements, with the exception of manganese.