levo

简明释义

[ˈliːvəʊ][ˈlivo]

adj. 左旋的(等于levorotatory)

n. (Levo)(美、意)莱沃(人名)

英英释义

Levo is a prefix used in chemistry to indicate that a molecule has a left-handed or counterclockwise orientation, particularly in relation to polarimetry.

Levo是一个在化学中使用的前缀,用于表示分子具有左旋或逆时针方向,特别是在与偏光法相关时。

In pharmacology, levo refers to the left-handed isomer of a chiral compound, which may have different biological activity compared to its right-handed counterpart.

在药理学中,levo指的是手性化合物的左旋异构体,其生物活性可能与其右旋对应物不同。

单词用法

levo-rotatory

左旋光性

levo-cardiac

左心

levo-morphine

左旋吗啡

levo form

左旋形式

levo isomer

左旋异构体

levo configuration

左旋构型

同义词

left

The left side of the road is where you should drive.

你应该在道路的左侧行驶。

levorotary

左旋的

Levorotary compounds are important in chemistry.

左旋化合物在化学中很重要。

反义词

dextro

右旋

Dextro rotation is the opposite of levo rotation.

右旋转是左旋转的相反方向。

right

In chemistry, dextrorotatory compounds rotate plane-polarized light to the right.

在化学中,右旋化合物使平面偏振光向右旋转。

例句

1.The levo-benzhydryl piperazine derivative is expected to become a long-acting effective medicine.

左二苯甲基哌嗪有望成为一种长期有效的药物。

2.The model of MIRI was established by ligating levo-anterior descending branch of coronary artery.

结扎犬冠状动脉左前降支建立急性心肌缺血再灌注模型。

3.Ingredients: Pearl essence, elastin, levo-vitamin c, avocado oil, etc.

主要成份:精纯珍珠精华、弹力蛋白、左旋维c、鳄梨油等。

4.It can be oriented to produce levo-aromatic and dextro-aromatic alcohols.

可用于合成各种具芳基胺醇类结构的手性药物。

5.Furthermore, it can be oriented to produce levo-aromatic and dextro-aromatic alcohols, being an important intermediate to synthesize clural medicines of different arylamino alwhol structures.

且可定向提供生成左旋或左旋芳香醇,因此可用于合成各种具芳基胺醇类结构的手性药物的重要中间体。

6.The purpose of this article is to find a way to determine the effective content of Levo-cetirizine Hydrochloride tablets.

目的建立盐酸左西替利嗪片的含量测定方法。

7.Conclusion Dextral-fosfomycin can be chiral biotransformed to levo-fosfomycin by Penicillium camemberti 2221.

结论沙门柏干酪青霉2221可手性转化右旋磷霉素为左旋磷霉素。

8.The levo-benzhydryl piperazine derivative is expected to become a long-acting effective levo-antihistamine medicine, and provides one more treatment choice for allergic disease patients.

本发明提供了一种有望成为长效、强效的左旋体抗组胺药物,给过敏疾病患者多一种治疗的选择。

9.It is reported that the case of SCA2 with Parkinsonism pedigree which is sensitive to the Levo-dopa treatment is very rare,.

国外文献报道,在欧美人群中,这种呈帕金森氏综合症的对多巴胺治疗敏感的SCA2家系很少。

10.Furthermore, it can be oriented to produce levo-aromatic and dextro-aromatic alcohols, being an important intermediate to synthesize clural medicines of different arylamino alwhol structures.

且可定向提供生成左旋或左旋芳香醇,因此可用于合成各种具芳基胺醇类结构的手性药物的重要中间体。

11.If you want to go to the park, take a levo at the next light.

如果你想去公园,在下一个红绿灯处向转。

12.He always prefers to sit on the levo side of the table.

他总是喜欢坐在桌子的侧。

13.The shop is on the levo side of the street.

那家商店在街道的侧。

14.I will take the levo route to avoid traffic.

我将选择侧的路线以避开交通。

15.At the intersection, make a levo turn.

在十字路口,向转。

作文

In the world of pharmaceuticals, the term levo (左旋) plays a crucial role in understanding the characteristics of various drugs. The prefix levo is derived from the Latin word 'laevus', meaning 'left'. This designation is particularly significant in the context of stereochemistry, which studies the spatial arrangement of atoms in molecules. Many drugs exist in two forms: one that is 'left-handed' (or levo) and another that is 'right-handed' (or 'dextro'). These two forms, known as enantiomers, can have drastically different effects on the body. For example, the drug thalidomide was initially marketed as a safe sedative, but it was later discovered that the levo form caused severe birth defects while the dextro form was effective in treating certain conditions. Understanding the implications of levo compounds is essential for both medical professionals and patients. In the case of certain medications, the levo form may provide therapeutic benefits, while the other enantiomer could be ineffective or even harmful. This reality emphasizes the importance of precise drug formulation and the need for ongoing research in pharmacology. Moreover, the concept of levo is not limited to pharmaceuticals. It extends into the realm of nutrition and dietary supplements, where the levo form of amino acids and vitamins can influence their absorption and efficacy in the body. For instance, some studies suggest that the levo form of certain amino acids may be more beneficial for muscle recovery compared to their dextro counterparts. This highlights the broader implications of levo in our daily lives, as the choices we make regarding supplements can impact our overall health and well-being. In conclusion, the term levo (左旋) is more than just a prefix; it represents a fundamental aspect of chemistry that has significant implications in medicine and nutrition. As we continue to learn more about the complexities of molecular structures and their effects on human health, the importance of understanding levo and its counterpart dextro becomes increasingly clear. By recognizing the differences between these enantiomers, we can make informed decisions about the medications we take and the supplements we choose, ultimately leading to better health outcomes. The study of levo compounds underscores the intricate relationship between chemistry and biology, reminding us that even the smallest changes at the molecular level can have profound effects on our lives.

在制药领域,术语levo(左旋)在理解各种药物的特性方面发挥着至关重要的作用。前缀levo源自拉丁词“laevus”,意为“左”。这一称谓在立体化学的背景下尤为重要,立体化学研究分子中原子的空间排列。许多药物存在两种形式:一种是“左手型”(或levo),另一种是“右手型”(或“dextro”)。这两种形式被称为对映体,对身体的影响可能截然不同。例如,药物沙利度胺最初被宣传为安全的镇静剂,但后来发现其levo形式会导致严重的出生缺陷,而dextro形式在治疗某些疾病方面有效。理解levo化合物的含义对于医疗专业人员和患者至关重要。在某些药物的情况下,levo形式可能提供治疗益处,而另一种对映体可能无效甚至有害。这一现实强调了精确药物配方的重要性,以及在药理学中持续研究的必要性。此外,levo的概念并不限于制药。它还扩展到营养和膳食补充剂的领域,其中某些氨基酸和维生素的levo形式可能影响其在体内的吸收和疗效。例如,一些研究表明,某些氨基酸的levo形式在肌肉恢复方面可能比其dextro对应物更具益处。这突显了levo在我们日常生活中的更广泛影响,因为我们在补充剂方面所做的选择可能会影响我们的整体健康和幸福。总之,术语levo(左旋)不仅仅是一个前缀;它代表着化学的一个基本方面,对医学和营养具有重要意义。随着我们继续深入了解分子结构的复杂性及其对人类健康的影响,理解levo及其对应物dextro的重要性变得愈发明显。通过认识这些对映体之间的差异,我们可以对所服用的药物和选择的补充剂做出明智的决定,最终实现更好的健康结果。对levo化合物的研究强调了化学与生物学之间错综复杂的关系,提醒我们即使是分子层面上最微小的变化也可能对我们的生活产生深远的影响。