性逆转

背景与目的：性逆转综合征是一种由于性别决定和分化异常导致的两性畸形，其主要特征是患者的核型与表型相反，分为46，XX男性和46，XY女性两型。

Background and Objective : sex reversal syndrome characterised by discrepancy in karyotype and Phenotype is a hermaphrodism due to abnormity of Sex Determination and differentiation . Sex reversal syndrome is divided into 46 , XX male and 46 , XY female .

黄鳝性逆转与性腺蛋白关系的分析

Relationship between sex reversal and gonadal protein in Monopterus albus

2.magneticfieldn.磁场磁场极性逆转就是磁极转换。

Magnetic field polarity reversals are magnetic poleshifts .

赤点石斑鱼（Epinephelusakaara）是名贵海水经济鱼类，雌雄同体，雌性先熟，存在天然性逆转现象。

Red spotted grouper ( Epinephelus akaara ) is a kind of marine fish .

在本研究中通过外源激素甲基睾酮（MT）和温度处理半滑舌鳎获得性逆转个体，分析其中性别相关基因的表达变化情况有助于了解性别分化的作用机理。

With the sex reversal obtained by MT immersion and temperature treatment during sex differentiation , it will be helpful to understand the mechanism of sex determination to analyze the sex-related gene expression in sex reversal .

这些结果表明，脑部芳香化酶活性的显著升高与性逆转密切相关，17-αMT主要通过提高血清中11-KT水平诱导赤点石斑鱼发生性逆转。

Present results suggested that the elevation of brain aromatase activities was associated closely with sex reversion , and the increasing 11-KT levels may be important for sex inversion induced by 17 α - MT in red-spotted grouper .

精制白喉毒素加0.02Mβ&丙氨酸，再加甲醛溶液经适当的时间解毒，即可转化为完全类毒化且无毒性逆转的精制白喉类毒素。

After adding 0 . 02M β- alanine then formalin into purified diphtheria toxin and keeping them for a suitable period , we got such product that was completely detoxified and nontoxicity reverse .

黄鳝性逆转过程中4种同工酶谱的比较

Studies on four isozyme systems in sex reversal process of Monopterus albus

含铬低合金钢在海水中耐蚀性逆转原因分析

Analysis for the reason of corrosion resistance reversion of containing chromium low alloy steels in seawater

17α-甲基睾酮对赤点石斑鱼性逆转的影响：卵细胞退化过程的观察

Effects of 17 α methyltestosterone on sex reversal in Epinephelus akaara : observation of degenerative process in egg cell

通过遗传分析性逆转患者来研究胚胎性腺发育和分化等相关基因是一条比较便捷的通道。

Genetic analysis of genes involved in embryonic gonadal development and differentiation in sex reversal is a relatively convenient access .

甲基睾酮对珍珠玛丽鱼及红剑尾鱼性逆转及体色影响的初步研究

A Preliminary Study on the Effects of Methyltestosterone on Sex Reversal and Body Colour in Sailfin Molly and Red Sword tall

对铬钢的耐蚀性逆转和铬元素对钢海水腐蚀的影响提出了新的看法。

New views on corrosion resistance reverse of chromium steels and the effect of chromium on seawater corrosion resistance were postulated .

该论文首次报道了经由促雄性腺提取物的注射而在蟹类中引起的性逆转现象。

This is the first report of sex reversal induced by injection of androgenic gland ( AG ) extract in brachyuran crabs .

该研究为了进一步开展黄鳝性逆转生殖调控分子机理研究奠定了基础。

Therefore , this study has laid a foundation for the mechanism of sex reversal of Monopterus Albus on the molecule level .

黄鳝性逆转过程中同工酶的分析研究Ⅰ.雌雄个体不同组织的同工酶分析

Studies on Isozymes in Sex Reversal Proces of Monopterus albus ⅰ . Analysis to Isozymes from Different Tissues of Male and Famale Individuals

甲状腺激素可能与性逆转关系不大，其作用在于促进代谢与生长。

In brief , the serum thyroid hormones in ricefield eel are scarce in relation to sex reversal , but the hormones affect and stimulate its metabolism and growth .

此外，还对性逆转期间性腺、性细胞的发育和变化过程以及外源混合激素的作用等问题进行了探讨。

The development and transformation process of gonad and sex cells as well as some effects of exogenous mixed hormones on the fish during the period of sex transformation were discussed .

饲料中的低蛋白水平有利于维持黄鳝血清较低的雌二醇水平，较高的睾酮水平，在一定程度上可以促进黄鳝的性逆转。

Dietary low protein levels were conducive to maintain lower serum estradiol levels , higher testosterone levels , and promote the sex reversal of Monopterus albus ( Zuiew ) in a certain extent . 2 .

劳动力市场的这种根本性逆转，已促使农民工的收入迅速增长。只要蓝领劳动力仍然短缺，这一趋势就不太可能改变。

The result of this fundamental labour market reversal has been to propel migrant workers ' incomes sharply higher , a trend that is unlikely to change for as long as blue-collar labour remains in shortage .

流动性逆转的原因包括大幅波动的货币政策等宏观方面因素，也包括金融机构的高杠杆率的迅速扩张和收缩等微观方面的原因。

The reason of liquidity reversal includes currency policy sharp fluctuations and other macro-economy factors , and the micro economy factors such as financial institutions rapid expansion and contraction on highly leverage ratio are also included .

黄鳝是一种雌性先熟的雌雄同体鱼类，黄鳝自然性逆转现象产生的遗传背景及分子调控机制一直是研究热点。

The first mature female Monopterus albus is a hermaphrodite fish . For the Monopterus albus ' natural sex reversal phenomenon of the molecular mechanism and genetic background in the academic community has been the focus of attention .

低浓度（20mg/kg）的丙酸睾酮对黄鳝性逆转无显著促进作用，而高浓度（40,60,80100mg/kg）对黄鳝性逆转有促进作用。

Low concentration ( 20 mg / kg ) of testosterone propionate on the reversal of rice-field eel had no significant promotion , however , high concentrations ( 40,60,80,100 mg / kg ) can promote the reversal of rice-field eel .

开放资本账户后的资本管制主要适应国际与国内金融形势的变化，减慢国际资本快速流动与突然性逆转对本国金融体系的冲击，防止本国金融危机的发生和防范他国金融危机对本国的传染。

The capital supervision and regulation After opening capital account mainly adapts to the international and domestic financial condition change , making international capital dramatically move slowly to abate the assault of the domestic financial systems , preventing the financial crisis and the financial crisis infection .

PR。结果：孕激素治疗后，子宫内膜由腺瘤样增生或非典型性增生逆转为正常内膜ER。

Results : After treatment with the pregnancy hormone , endometrium transferred from adenoma hyperplasia or atypism hyperplasia to normal mesentery , ER .

在碳酸钙加填纸中AKD施胶的有效性和逆转性

Efficiency and Reversion of Alkyl Ketene Dimer Sizing in Calcium Carbonate Filled Papers

研究表明，一些传染病受到了厄尔尼诺/南方涛动现象（ENSO）的影响。ENSO是太平洋洋流周期性的逆转，它会破坏世界气候。

Research shows that some infectious diseases are affected by the El Ni ñ o Southern Oscillation ( ENSO ) & a periodic reversal of currents in the Pacific Ocean that disrupts the world 's climate .

国际环境和中国的国际地位发生了根本性的逆转；

The international environment and China 's status has changed radically ;

笔者认为这种做法存在一定的局限性，逆转理论是有益的补充。

The author thinks that the method has many limitations and reversal theory is helpful supplement .

父方投资与性角色逆转现象：螽斯类昆虫的婚礼食物及对性选择方向的影响

Parental investment and sex role reversal : nuptial gift and its effects on sexual selection in katydids