| 1. | Late maternal age has certainly been implicated in mongolism .
先天愚型就与高龄生产有关。 |
| 2. | I because maternal age large body is bad to need to take care of , because this often works overtime 1 small come home take care of a mother
我因为母亲年龄大身体不好需照顾，因此常加班1小就回家照顾母亲。 |
| 3. | The results are as follows : number of newborn pups decreased gradually and date of pupbirth was prolonged with maternal age of km mice
结果如下：随着衰老，昆明白小鼠产出的幼仔数明显下降，其分娩日期也延迟。 |
| 4. | Karyotyping for adanced maternal age was performed by amniocentesis and demonstrated a normal male karyotype ( 46 xy with g - banding )
对此高龄孕妇行羊膜穿刺染色体组型分型检查，先是正常男性（ 46xy ， g带显带技术） 。 |
| 5. | The clinical features , maternal age , gestational age , risk factors , clinical courses , radiographic findings , treatment , laboratory data , and the pregnancy outcomes were reviewed by medical records
这些孕妇之临床表现，年龄，妊娠周数，危险因子，临床病程，放射线检查之结果，实验室检查之数据，治疗过程与怀孕结果，皆由病例纪录得到完整之资料。 |
| 6. | The results of statistics showed that maternal age of ds had a tendency to decrease . the results of maternal exposed factors multi - unconditional logistic model showed that long time and low dose radiation and smoked were significantly related with ds
最后将结果用spss10 . 0进行统计分析，对ds父母亲的环境因子暴露情况进行了单因素的基本分析和多因素非条件logistic回归分析。 |
| 7. | Using km mouse as a animal model for studies on the maternal age effec t , we compared quantity , quality and in vitro developmental competence of oocytes from different age groups of mice to elucidate the possible mechanism of the decline in ageing - associated fertility
本实验以昆明白小鼠作为研究母体年龄效应的动物模型，比较了不同年龄段小鼠卵母细胞的数量、质量及体外发育能力等，以探讨与衰老相关生育力下降的机制。 |
| 8. | Maturation rates of 9 types of reconstructed gv oocytes were not differed with maternal age . after maturation of reconstructed gv oocytes , the percentages of pronuclear - stage embryos and 2 - cell embryos developed from 9 types of reconstructed oocytes by ivf or artificial activation were not influenced by cytoplasmic or nuclear changes resulting from oocytes of different age groups of mice
不同年龄段小鼠进行gv互换所形成的9种重组卵母细胞，在经人工活化或体外受精后，形成原核期胚和2 -细胞期胚的比率并不因不同年龄小鼠卵母细胞所带来的细胞质或细胞核的改变而受到影响。 |
| 9. | A better knowledge of their etiologic factors and their pathogenesis could have important practical implications for prevention . it is well known that maternal age is one of etiologic factors . but maternal age is just the effects of accumulated environmental factors on human body
已有的研究发现母亲生育年龄是染色体不分离疾病发生的危险因素，但母亲生育年龄只是环境因子在体内累积作用的表现形式，随着人们生活水平提高，人类生存环境发生了很大的变化，有必要分离当前与染色体不分离有关的环境因子，从而有利于预防染色体不分离疾病的发生，提高我国人口素质，降低人口数量。 |
| 10. | The researchers also confirmed previous findings that an earlier maternal age was somewhat protective against breast cancer . those whose first pregnancies occurred when they were 19 or younger had about a 10 percent reduced risk of breast cancer , while those who waited until they were 35 or older to have their first child faced 20 times the average breast cancer risk
那些首次怀孕发生在19岁或更小的时候的女性，其患这种疾病的危险要少10而那些直到35岁或更大年纪才有第一个孩子的女性将面临着是平常女性20倍的患病危险。 |
