?dopamine

dopamine發(fā)音

英：['d??p?mi:n]　　美：['do?p?mi:n]

英：　　美：

dopamine中文意思翻譯

n. 多巴胺(一種治腦神經(jīng)病的藥物)

dopamine常見(jiàn)例句

1 、An amino acid, C9H11NO4, formed in the liver from tyrosine and converted to dopamine in the brain.───多巴一種胺基酸，c9h11no4，由酪胺酸在肝臟中生成并在大腦中變?yōu)槎喟桶?/p>

2 、Dopamine 400 in 500, start it at ten.─── 多巴胺400毫克 從10毫克開(kāi)始加

3 、"We believed that this change would enhance dopamine activity in the brain.───我們認為這種改變可以增強腦內的多巴胺的功能?！?/p>

4 、Similarly, when a male rat have sex it feels good to him since of the dopamine.───與草原田鼠近似，雄性家鼠**時(shí)，因多巴胺分泌同樣會(huì )感到愉快。

5 、Dopamine agonists are powerful drugs that are used to control tremors associated with Parkinson's Disease.───多巴胺激動(dòng)劑是一種有效的藥物，用于控制帕金森病人的顫抖。

6 、Both classes of drugs are dopamine receptor antagonists that work by blocking the action of naturally occurring dopamine in the brain.───兩類(lèi)藥物都多巴胺受體拮抗劑，通過(guò)阻斷大腦自然發(fā)生的多巴胺活性發(fā)揮效用。

7 、Further evaluation of the efficacy and safety of dopamine for improvement of renal function in hospitalized patients with heart failure is warranted.───多巴胺改善住院心力衰竭患者腎功能的有效性和安全性尚需進(jìn)一步研究。

8 、Start dopamine at 10 and titrate to a systolic of 90.─── 靜脈滴定10單位多巴胺 使收縮壓升至90

9 、Medical experts think that this is dopamine, norepinephrine and serotonin in the blood the result.───醫學(xué)專(zhuān)家認為，這是多巴胺、去甲腎上腺素和血液中的復合胺共同作用的結果。

10 、When dopamine is released by meth use, it lessens acetylcholine levels in the striatum; continued drug use reduces it to as low as 10 percent.───當使用甲基苯丙胺引發(fā)多巴胺釋放時(shí)，這導致了紋狀體中的**膽堿水平降低；持續用藥會(huì )將其降低至10%。

11 、An amino acid,C9H11NO4,formed in the liver from tyrosine and converted to dopamine in the brain.───多巴一種胺基酸，C9H11NO4，由酪胺酸在肝臟中生成并在大腦中變?yōu)槎喟桶贰?/p>

12 、B.P.'s dropping.Up the dopamine.───|血壓下降. 加大多巴胺劑量.

13 、Reward coding theories predict that dopamine neurons will be inhibited by or will not respond to aversive stimuli.───獎賞譯碼理論預測多巴胺神能經(jīng)元對于令人厭惡的刺激會(huì )被抑制或者不反應。

14 、Abstract Objective To study the changes of dopamine in cerebrospinal fluid in the cats with persistent vegetative state (PVS).───摘要 目的 探討持續性植物狀態(tài)貓腦脊液中多巴胺的變化及其意義。

15 、The decrease in the amount of dopamine can result in one or more of the general signs or symptoms of Parkinson's disease.───多巴胺的缺失能夠導致一種或多種帕金森氏綜合癥的常規癥狀。

16 、DerHirnbotenstoff Dopamin beeinflusst, welche Alternativen wir bevorzugen.───大腦信息的物質(zhì)多巴胺影響著(zhù)，我們會(huì )首選什么。

17 、COMT has been intensively studied because of its key role in dopamine catabolism.───COMT已經(jīng)有深入的研究了，因為他在多巴代謝中扮演重要角色。

18 、Take exercise together, possibly by playing sport or jogging. This boosts dopamine levels in the brain.───一起鍛煉身體，可以進(jìn)行體育運動(dòng)或是慢跑。這能促進(jìn)大腦中的多巴胺濃度上升。

19 、It was successfully used for the determination of the content of dopamine hydrochloride in dopamine hydrochloride injection.───應用于鹽酸多巴胺注射液中鹽酸多巴胺的測定,結果滿(mǎn)意。

20 、On the other hand, other evidence suggests a link between dopamine and schizophrenia, because treatments for schizophrenia, such as haloperidol, block dopamine.───另外一方面，其他證據顯示多巴胺與精神分裂癥也是有關(guān)的，因為治療精神分裂癥的藥物氟哌啶醇的作用就是阻抑多巴胺。

21 、Secondly, cocaine has well documented effects on the reward system of mammal brains by influencing the levels of dopamine in the brain.───其次，可卡因通過(guò)影響哺乳動(dòng)物大腦中多巴胺的水平很好地證明了其對哺乳動(dòng)物大腦回報系統的效果。

22 、A neurochemical called dopamine is released from the ventral tegmental area into the caudate nucleus.───影響神經(jīng)系統的多巴胺就會(huì )從腹側被蓋區釋放到尾狀核。

23 、From there, the dopamine latches onto its receptor on the accumbens neuron and transmits its signal into the cell.───多巴胺在這兒會(huì )與依核神經(jīng)元上的受體相接，并將訊息傳給這個(gè)依核神經(jīng)元。

24 、Bupropion prevents two of these neurotransmitters, noradrenaline and dopamine, from being reabsorbed back into the nerve ce...───在信息傳遞時(shí)，神經(jīng)遞質(zhì)就會(huì )從神經(jīng)細胞釋放，一旦信號傳遞完畢，神經(jīng)細胞會(huì )將神經(jīng)遞質(zhì)重吸收。

25 、Dr.Berns of Emory says dopamine may help explain why someone buys shoes they never wear.───埃默里大學(xué)的伯恩斯說(shuō)，多巴胺可以解釋為什么一個(gè)人購買(mǎi)鞋子后卻從來(lái)不穿。

26 、When it reaches the brain, levodopa is changed to dopamine.───當它到達腦部后就變成多巴胺。

27 、Neuroblastomas are also associated with increased urinary levels of dopa, dopamine and their metabolites, particularly homovanillis acid.───成神經(jīng)細胞瘤患者尿中也出現大量的多巴、多巴胺以及它們的代謝物，特別是高香草酸。

28 、Previous research has shown that the drug stimulates nerve cells in the midbrain to release dopamine into the synapses (connections between neurons) in the striatum.───以前的研究已證明，該藥品（甲基苯丙胺）刺激中腦突觸（神經(jīng)元間的連接）向紋狀體釋放多巴胺。

29 、Abstract： Objective To study the toxicity of exogenous dopamine(DA) in dopaminergic neurons.───摘 要： 目的研究外源性多巴胺對多巴胺能神經(jīng)元的毒性作用。

30 、In the base of dopamine,it is nothing to do with surviving to apply dobutamine or noradrenaline.───應用多巴胺的基礎上應用多巴酚丁胺或去甲腎上腺素對于患者的預后無(wú)影響。

31 、Dopamine allows us to feel good when we laugh.───當我們笑的時(shí)候,多巴胺讓我們感覺(jué)心情很好。

32 、Aversive events produce different, mostly slower, electrophysiological dopamine responses that consist predominantly of depressions.───嫌惡物事件在電生理學(xué)方面產(chǎn)生不同的、慢的多巴胺應答，主要是抑制性的。

33 、THUS FAR WE HAVE focused on drug-induced changes that relate to dopamine in the brain's reward system.───到目前為止，我們都只談到藥物在腦部報償系統所引起、多巴胺有關(guān)的變化。

34 、Neuroblastomas are also associated with increased urinary levels of dopa, dopamine and their metabolites.───成神經(jīng)細胞瘤患者尿中也出現大量的多巴、多巴胺以及它們的代謝物。

35 、The compound is present in limited amounts in the brain, where it is critical for making neurotransmitters such as dopamine, epinephrine, norepinephrine, serotonin and melatonin.───在腦里，生物喋呤的量很有限，卻是制造多巴胺、腎上腺素、正腎上腺素、血清張力素、褪黑激素等神經(jīng)傳遞物的關(guān)鍵分子；

36 、Dopamine is a brain chemical which produces feelings of satisfaction and pleasure.───多巴胺是大腦中產(chǎn)生滿(mǎn)足和快樂(lè )的一種化學(xué)物質(zhì)。

37 、Low dose levodopa and dopamine agonists are effective in controlling most symptoms of the disorder.───小劑量左旋多巴和多巴胺激動(dòng)劑治療有效。

38 、Defects in the gene might promote manic-depression by making people oversensitive to these messages, which are carried by dopamine and other substances, he said.───凱爾索博士說(shuō)，這種基因的特性可以最終造成人們對這些成分（通常在多巴胺和其他物質(zhì)中）的過(guò)分敏感，而誘發(fā)躁郁癥。

39 、It replaces the natural substance dopamine, which is lacking in Parkinson's disease patients.───它取代了帕金森患者缺少的天然多巴胺。

40 、I can literally feel my dopamine levels rising.─── 我能感覺(jué)到體內的多巴胺蹭蹭蹭往上飆

41 、The injection of dopamine also significantly decreased the oxyhemocyanin/protein ratio of P. monodon at 2 h due to the elevation of hemolymph protein.───在注射多巴胺后2小時(shí)后，由于血淋巴中的總蛋白質(zhì)含量增加，導致攜氧血藍素佔總蛋質(zhì)的百分比也顯著(zhù)性地下降。

42 、High concentrations of L-DOPA and dopamine are toxic to the larvae.───且高濃度L-多巴和多巴胺對幼蟲(chóng)有毒害效應。

43 、They found that feelings of intensive romantic love were linked to activity in the right caudate nucleus and right ventral tegmental area dopamine.───他們發(fā)現強烈而又浪漫的愛(ài)情感覺(jué)跟右尾狀核和右腹側被蓋區多巴胺有關(guān)。

44 、To later shut down the signal, the VTA neuron removes the dopamine from the synaptic cleft and repackages it to be used again as needed.───之后為了停止訊號的傳送，VTA神經(jīng)元會(huì )收回突觸間隙的多巴胺，并重新組裝以備再度需要的時(shí)刻。

45 、Effects of Dopamine, Dobutamine, and Dopexamine on Microcirculatory Blood Flow in the Gastrointestinal Tract during Sepsis and Anesthesia.───多巴胺,多巴酚丁胺以及多培沙明對敗血癥和**期間胃腸道微循環(huán)血流的影響。

46 、Dr.Brown said scientists believe that when you fall in love, the ventral tegmental floods the caudate with dopamine.───布朗博士說(shuō)，科學(xué)家們相信，當人們墜入愛(ài)河的時(shí)候，腹側被蓋區就會(huì )使活性尾區域充滿(mǎn)多巴胺。

47 、There are alternatie therapies aailable for Parkinson's disease, including three other dopamine agonists that hae not been associated with alular heart disease.───患者可選用其它治療藥物，包括三種與心臟瓣膜疾病無(wú)關(guān)的其它多巴胺激動(dòng)劑。

48 、Sure enough, when a female prairie vole mates, there is a 50% increase in the level of dopamine in the reward centre of her brain.───當雌性草原田鼠交配時(shí)，在大腦獎賞系統中樞，多巴胺水平會(huì )有50%的上升，而這已足夠讓這些“女士”們產(chǎn)生上面提到的那種快感。

49 、I'm telling you, the guy he puts the "dope" in dopamine.─── 我跟你們說(shuō) 那個(gè)人以為多巴胺是*

50 、After patients received bonus of ephedrine 0.2 mg/kg or dopamine 0.05 mg/kg or 2 ml of saline respectively.───3min后E組、D組和C組分別靜脈注射麻黃堿0.2mg/kg、多巴胺0.05mg/kg或生理鹽水2ml;

51 、Sure enough, when a female prairie vole mates, there is a50% increase in the level of dopamine in the reward centre of her brain.───當雌性草原田鼠交配時(shí)，在大腦獎賞系統中樞，多巴胺水平會(huì )有50%上升，而這已完全足夠讓這些“女士”們產(chǎn)生上面提到的那種快感。

52 、We report a case of antecollis, or dropped head with Parkinson's disease (PD) induced by pramipexole, a nonergot dopamine agonist.───一80歲的女性帕金森病患者出現頸項前屈，表現為嚴重的頸反射，癥狀進(jìn)行性加重。

53 、We discuss the properties of substantia nigra dopamine neurons that might make them particular targets of such multiple hits.───以及抑制了神經(jīng)元保護性應答，導致了選擇的神經(jīng)元死亡。

54 、The dopamine D_2 partial agonist is expected to reduce the positive symptoms of schizophrenia without producing movement disorders or elevated prolactin levels.───它可以改善精神分裂癥**癥狀,而不引起運動(dòng)障礙和催乳素增高,很少引起錐體外系反應。

55 、This operation was replaced in the1960 s by drugs that dampen dopamine's activity in the same brain systems.───前額葉切斷術(shù)是一種過(guò)時(shí)的手術(shù)，一度用來(lái)控制患者的幻覺(jué)與妄想，但到了1960年代，就被可以減弱腦中多巴胺活性的藥物取代了。

56 、The response of canine trachea to exogenous dopamine was studied in vivo.Pentobarbital-anesthetized dogs were treated with dopamine through i.v. injection and i.v. infusion.───為求瞭解外加性多巴胺對呼吸道的影響，我們設計了一種測量動(dòng)物體內半分離氣管的內壓的方法，以偵測氣管對由靜脈輸入及由靜脈注射的多巴胺的反應。

57 、Defects in the gene might promote manic-depression by making people oversensitive to these messages,which are carried by dopamine and other substances,he said.───凱爾索博士說(shuō)，這種基因的特性可以最終造成人們對這些成分(通常在多巴胺和其他物質(zhì)中)的過(guò)分敏感，而誘發(fā)躁郁癥。

58 、We found that, in the ventral tegmental area of anesthetized rats, the population of presumed dopamine neurons that are excited by aversive stimuli is actually not dopaminergic.───作者發(fā)現在**大鼠的腹側被蓋區中被推測對令人厭惡刺激產(chǎn)生反應的多巴胺能神經(jīng)元群體實(shí)際上不是多巴胺能的。

59 、Uniform Inhibition of Dopamine Neurons in the Ventral Tegmental Area by Aversive Stimuli Dopamine neurons play a key role in reward-related behaviors.───令人厭惡的刺激產(chǎn)生的在腹側被蓋區產(chǎn)生的多巴胺神能經(jīng)元一致性抑制 多巴胺神經(jīng)元在獎賞相關(guān)行為中氣主要作用。

60 、It has been reported in foreign literature that the A 1 allele of the Taq I polymorphism of the dopamine D 2 receptor gene(DRD 2)was related to ADHD.───國外近年由于分子生物學(xué)方法的介入，發(fā)現多巴胺D2受體TaqIA1等位基因與本病相關(guān)。

61 、But dopamine is all about the hunt, not the trophy: only the anticipation, rather than the buying, squirts the chemical.───但多巴胺只和尋覓過(guò)程有關(guān)，和得到戰利品無(wú)關(guān)：只有預期，而不是購買(mǎi)，能釋放這種物質(zhì)。

62 、When they first fall in love, Fisher explains, couples often show the signs of surging dopamine: Increased energy, less need for sleep or food, and highly focused attention.───當他們第一次相愛(ài),費雪解釋,夫妻常常涌動(dòng)多巴胺跡象表明:增加能源、那么需要睡眠或食物、高度集中注意力.

63 、A similar increase was shown in those of the intact animals given an inhibitor of high affinity dopamine uptake, GBR 12909 (20 mg/kg, i.p.) , in response to DOPA.───在使用多巴胺高親和力重攝取位點(diǎn)的阻斷劑GBR12909后，左旋多巴治療正常動(dòng)物也引起了類(lèi)似于帕金森病動(dòng)物的變化。

64 、They believe it is associated with dopamine, as well as with the closely related neurotransmitter norepinephrine.───他們相信這和多巴胺有關(guān)，以及與降腎上腺素的神經(jīng)傳遞素有密切關(guān)系。

65 、The effects of dopamine on the brain are similar to cocaine.─── 多巴胺對大腦的作用和可卡因一樣

66 、Similarly, when a male rat has s*x it feels good to him because of the dopamine.───與草原田鼠近似，雄性家鼠**時(shí)，因多巴胺分泌同樣會(huì )感到快樂(lè )。

67 、IF DOPAMINE CANNOT account well for schizophrenia, what is the missing link?───如果多巴胺未能完全解釋精神分裂癥的成因，那麼遺失的環(huán)節究竟在哪里呢?

68 、Even with its intoxicating supply of dopamine, the ventral tegmental couldn't do the love job on its own.───他們發(fā)現強烈而又浪漫的愛(ài)情感覺(jué)跟右尾狀核和右腹側被蓋區多巴胺有關(guān)。多巴胺是大腦中產(chǎn)生滿(mǎn)足和快樂(lè )的一種化學(xué)物質(zhì)。

69 、Give atropine and start a dopamine drip.─── 輸阿托品并開(kāi)始多巴胺點(diǎn)滴

70 、But drugs do more than provide the dopamine jolt that induces euphoria and mediates the initial reward and reinforcement.───但藥物不只會(huì )造成多巴胺的變動(dòng)，來(lái)引發(fā)快感以及起初的報償和強化作用。

71 、Dopamine is important in controlling many brain functions, including feelings of motivation and reward.───多巴胺在控制腦功能方面起重要作用，包括控制激勵和回報的感覺(jué)。

72 、Similar to drug-addicted subjects, we found reductions in striatal dopamine D2 receptors in obese subjects.───與藥物成癮者相似，我們也發(fā)現肥胖患者的紋狀體D2受體的減少。

73 、Prefrontal lobe cortex dopamine D1 receptors mRNA expression increased in rats of DOI-induced head-shakes.───DOI誘導的Tourette綜合征動(dòng)物模型大鼠前額葉皮層多巴胺D1受體基因表達增高。

74 、delivering dopamine when moms interact with their children.─── 當母親與孩子親近時(shí)會(huì )釋放出多巴胺

75 、Surgeons insert a catheter into the left and right striatum, the main recipients in the basal ganglia of the dopamine secreted by neurons of the substantia nigra.───外科醫師將導管伸入腦左右兩邊的紋狀體，那里是接受黑質(zhì)神經(jīng)元釋出多巴胺的主要基底核腦區。

76 、Another area that lit up: the ventral tegmental, which produces dopamine, a powerful neurotransmitter that affects pleasure and motivation.───另一個(gè)區域--腹側被蓋區被激活，開(kāi)始產(chǎn)生多巴胺，這種強大的強大神經(jīng)傳遞素能影響（人們的）快感和沖動(dòng)。

77 、Dr.Berns and his colleagues have devised studies to simulate novel experiences to better understand when and why the brain releases dopamine.───伯恩斯博士和他的同事設計了一套研究方法，模擬這種新奇的體驗，以了解大腦何時(shí)分泌多巴胺，以及分泌的原因是什么。

78 、Underweight rats have enhanced dopamine release and blunted acetylcholine response in the nucleus accumbens while bingeing on sucrose.───體重過(guò)輕大鼠在狂飲蔗糖時(shí)可使伏隔核內多巴胺釋放增加并且使**膽堿反應變遲鈍。

79 、Complex carbohydrates provide readily available fuel for your body, while protein increases the brain's dopamine levels, thereby boosting alertness.───復合型碳水化合物能夠迅速地為你的身體提供能量，而蛋白質(zhì)可以補充你腦中的多巴胺，使你身體敏捷程度提高。

80 、Dopamine is a key neuro-transmitter,its research history was closely related to the development of Parkinson s disease(PD).───多巴胺作為一種重要神經(jīng)遞質(zhì),其研究歷史與帕金森病發(fā)展史緊密相隨。

81 、Dopamine makes us feel good and norepinephrine stimulates the production of adrenaline.───多巴胺使我們感覺(jué)良好，而去甲腎上腺素刺激產(chǎn)生興奮。

82 、They need dopamine so that they want to consume and reproduce.─── 它們也需要多巴胺來(lái)促使它們進(jìn)食和繁殖

83 、Most other drugs used to treat Parkinson's disease are designed to increase the amount of dopamine in the brain.───大多數用于治療帕金森氏綜合癥的藥物是為了提高腦部多巴胺的含量。

84 、When drugs of abuse increase dopamine release from the VTA into the nucleus accumbens, they also alter the responsiveness of the VTA and nucleus accumbens to glutamate for days.───當濫用藥物促使VTA釋出較多的多巴胺到依核時(shí)，也會(huì )改變VTA與依核對麩胺酸的反應達數天之久。

85 、Local alpha-bungarotoxin-sensitive nicotinic receptors in the nucleus accumbens modulate nicotine-stimulated dopamine secretion in vivo.───伏隔核中的局部阿爾法-金環(huán)蛇毒素敏感**感受器在體調制**誘發(fā)多巴胺分泌。

86 、The healthcare product B also apparently increases the level of hypothalamic dopamine in the same rat, improving the results of exercise endurance.───保健品B亦能明顯增加過(guò)度游泳訓練造成的超負荷疲勞大鼠下丘腦多巴胺含量，有利于提高耐力性運動(dòng)的成績(jì)。

87 、It's cortisol, oxytocin, dopamine. It's a trick.─── 只是皮質(zhì)醇 催產(chǎn)素 多巴胺的把戲而已

88 、Improper dopamine balance cannot account for why one individual with schizophrenia responds almost completely to treatment, whereas someone else shows no apparent response.───多巴胺的不平衡未能解釋為什麼某位精神分裂癥患者對治療幾乎全然有反應，而其他人的反應卻不明顯；

89 、If a person feels happy, his cerebrum will excrete a favorable hormone called “dopamine”.───如果人是快樂(lè )的，大腦就分泌一種叫做“多巴胺”的“益性”荷爾蒙；

什么叫做多巴胺

什么叫做多巴胺如下：

多巴胺（Dopamine）是一種神經(jīng)遞質(zhì)，也是一種重要的化學(xué)物質(zhì)，在人類(lèi)和其他動(dòng)物的大腦中起著(zhù)重要的調節作用。它涉及到多種生理和心理功能，包括運動(dòng)調節、獎賞機制、情緒調節、注意力、學(xué)習和記憶等。

多巴胺在中樞神經(jīng)系統中的主要功能之一是作為一種神經(jīng)遞質(zhì)，即在神經(jīng)細胞之間傳遞信號的化學(xué)物質(zhì)。它通過(guò)連接神經(jīng)元之間的空隙，稱(chēng)為突觸，將信息從一個(gè)神經(jīng)元傳遞到另一個(gè)神經(jīng)元。多巴胺的釋放和重新吸收，以及與接受它的神經(jīng)元之間的相互作用，是調節中樞神經(jīng)系統功能的重要過(guò)程。

多巴胺還參與調節運動(dòng)功能。在大腦的基底節區域，多巴胺參與調節肌肉的收縮和放松，從而實(shí)現身體的運動(dòng)控制。

此外，多巴胺還與獎賞機制密切相關(guān)。當我們經(jīng)歷到愉快的事物或體驗時(shí)，多巴胺的釋放會(huì )增加，產(chǎn)生一種快樂(lè )和滿(mǎn)足感。這種獎賞反饋系統在個(gè)體學(xué)習和行為獎勵方面起著(zhù)重要作用，激勵我們追求積極的體驗。

多巴胺也影響情緒調節。多巴胺的不足或過(guò)多都可能與情緒障礙相關(guān)，例如抑郁癥和精神分裂癥。

總的來(lái)說(shuō)，多巴胺在大腦中扮演著(zhù)重要的角色，涉及到多種生理和心理功能的調節。它不僅關(guān)乎我們的身體活動(dòng)和運動(dòng)控制，還與獎賞、情緒和學(xué)習等方面密切相關(guān)。

知識拓展

根據研究所得，多巴胺能夠治療抑郁癥;而多巴胺不足則會(huì )令人失去控制肌肉的能力，嚴重會(huì )令病人的手腳不自主地震動(dòng)或導致帕金森氏癥。

2012年有科學(xué)家研究出多巴胺可以有助進(jìn)一步醫治帕金森癥。治療方法在于恢復腦內多巴胺的水準及控制病情。德國研究人員稱(chēng)，多巴胺有助于提高記憶力，這一發(fā)現或有助于阿爾茨海默氏癥的治療。

多巴胺的化學(xué)性質(zhì)是什么

多巴胺(Dopamine) (C6H3(OH)2-CH2-CH2-NH2) 是一種腦內分泌，可影響一個(gè)人的情緒。 它正式的化學(xué)名稱(chēng)為4-(2-乙胺基)苯-1,2-二醇，簡(jiǎn)稱(chēng)「DA」。Arvid Carlsson確定多巴胺為腦內信息傳遞者的角色使他贏(yíng)得了2000年諾貝爾醫學(xué)獎。多巴胺是一種神經(jīng)傳導物質(zhì)，用來(lái)幫助細胞傳送脈沖的化學(xué)物質(zhì)。這種腦內分泌主要負責大腦的情欲，感覺(jué)，將興奮及開(kāi)心的信息傳遞，也與上癮有關(guān)。愛(ài)情其實(shí)就是腦里產(chǎn)生大量多巴胺作用的結果。所以，吸煙和吸毒都可以增加多巴胺的分泌，使上癮者感到開(kāi)心及興奮。根據研究所得，多巴胺能夠治療抑郁癥；而多巴胺不足則會(huì )令人失去控制肌肉的能力，嚴重會(huì )令病人的手腳不自主地震動(dòng)或導致帕金森氏癥。最近，有科學(xué)家研究出多巴胺可以有助進(jìn)一步醫治柏金遜癥。治療方法在于恢復腦內多巴胺的水準及控制病情。

常用其鹽酸鹽，為白色或類(lèi)白色有光澤的結晶；無(wú)臭，味微苦；露置空氣中及遇光色漸變深。在水中易溶，在無(wú)水乙醇中微溶，在氯仿或乙醚中極微溶解。熔點(diǎn)243℃-249℃(分解)。