相关实验视频
Updated: Jun 25, 2025
05:07
Microwave-Assisted Preparation of 1-Aryl-1H-pyrazole-5-amines
Published on: June 23, 2019
6.7K
合成和生物研究的胺衍生物向代谢酶的合成和生物研究
Elif Korkusuz1, Yusuf Sert2, Seher Arslan3
1Mustafa Cikrikcioglu Vocational College, Kayseri University, Kayseri, Turkey.
Archiv der Pharmazie
|May 21, 2024
概括
新型胺衍生物对与,玻璃眼,阿尔茨海默氏病和糖尿病相关的关键酶表现出强大的抑制作用. 这些化合物为代谢和神经疾病提供了有前途的治疗潜力.
科学领域:
- 药用化学 医学化学
- 酶学 是一种酶学.
- 药理学 药理学是指药理学的学科.
背景情况:
- 代谢酶,如炭酶I和II (hCA I和II),乙胆酶 (AChE),丁胆酶 (BChE),α-糖酶和阿尔多减少酶 (AR) 等代谢酶,都与各种疾病有关.
- 这些疾病包括,玻璃眼,阿尔茨海默氏症,糖尿病和神经病变,突显了针对这些酶的有效治疗剂的需要.
研究的目的:
- 为了合成新的胺基衍生物.
- 研究这些衍生物对hCA I,hCA II,ACHE,BCHE,α-糖酶和AR的抑制潜力.
- 评估这些化合物对相关疾病的治疗前景.
主要方法:
- 新型胺衍生物的合成.
- 进行了酶抑制试验以确定IC50和Ki值.
- 对关键代谢酶组的抑制活性进行比较.
主要成果:
- 合成的胺衍生物对所有测试的酶都表现出有效的抑制作用.
- 对于hCA I. 的特定Ki值在39.16 ± 7.70 nM至144.62 ± 26.98 nM之间.
- 对于hCA II (18.21 ± 3.66136.35 ± 21.48 nM),AChE (33.15 ± 4.8552.98 ± 19.86 nM),BChE (31.96 ± 8.2469.57 ± 21.27 nM),α-糖化酶 (17.37 ± 1.11253.88 ± 39.91 nM) 和AR (648.82 ± 53.741902.58 ± 98.90 nM) 的基值也具有意义.
结论:
- 新型皮里米丁衍生物对与主要疾病相关的酶具有显著的抑制活性.
- 这些化合物代表了开发新治疗剂的有希望的候选者.
- 需要进一步的研究来阐明它们的抑制机制和体内疗效.
相关概念视频
01:19Allosteric Proteins-ATCase
5.7K
Binding sites linkages can regulate a protein's function. For example, enzyme activity is often regulated through a feedback mechanism where the end product of the biochemical process serves as an inhibitor.
Aspartate transcarbamoylase (ATCase) is a cytosolic enzyme that catalyzes the condensation of L-aspartate and carbamoyl phosphate to N-carbamoyl-L-aspartate. This reaction is the first step in pyrimidine biosynthesis. UTP and CTP, the end products of the pyrimidine synthesis...
Aspartate transcarbamoylase (ATCase) is a cytosolic enzyme that catalyzes the condensation of L-aspartate and carbamoyl phosphate to N-carbamoyl-L-aspartate. This reaction is the first step in pyrimidine biosynthesis. UTP and CTP, the end products of the pyrimidine synthesis...
5.7K
01:19Phase II Reactions: Miscellaneous Conjugation Reactions
58
Phase II biotransformations are detoxification mechanisms that conjugate xenobiotics with endogenous substances, neutralizing their toxicity.
A key example involves the conjugation of cyanide ions, which impair cellular respiration and alter hemoglobin into non-oxygen-carrying cyanmethemoglobin. To neutralize this threat, a sulfur atom from thiosulphate is transferred to the cyanide ion, catalyzed by the enzyme rhodanese, resulting in an inactive compound called thiocyanate. The production of...
A key example involves the conjugation of cyanide ions, which impair cellular respiration and alter hemoglobin into non-oxygen-carrying cyanmethemoglobin. To neutralize this threat, a sulfur atom from thiosulphate is transferred to the cyanide ion, catalyzed by the enzyme rhodanese, resulting in an inactive compound called thiocyanate. The production of...
58
01:17Phase II Reactions: Methylation Reactions
178
Methylation is a phase II biotransformation process involving the attachment of a methyl group to a substrate. Enzymes known as methyltransferases orchestrate this reaction.
The mechanism of methylation unfolds in two stages. The first stage sees a methyltransferase enzyme facilitating the transfer of a methyl group from S-adenosylmethionine (SAM) to the substrate, forming S-adenosylhomocysteine (SAH). The second stage involves further metabolism of SAH into homocysteine, which can be recycled...
The mechanism of methylation unfolds in two stages. The first stage sees a methyltransferase enzyme facilitating the transfer of a methyl group from S-adenosylmethionine (SAM) to the substrate, forming S-adenosylhomocysteine (SAH). The second stage involves further metabolism of SAH into homocysteine, which can be recycled...
178
01:14Drug Metabolism: Phase II Reactions
3.8K
Phase II reactions are essential for the detoxification and elimination of drugs from the body. These reactions involve the conjugation of parent drugs or their phase I metabolites with endogenous molecules, resulting in more hydrophilic drug conjugates. The primary conjugation reactions in this phase are sulfation and glucuronidation. Both sulfation and glucuronidation typically produce biologically inactive metabolites. However, in some cases involving prodrugs, active metabolites may be...
3.8K
01:29Drugs Affecting Neurotransmitter Synthesis
1.4K
Drugs affecting neurotransmitter synthesis can impact the adrenergic neuron and the synthesis of neurotransmitters. For example, α-methyltyrosine and carbidopa target specific enzymes involved in catecholamine synthesis. α-methyltyrosine inhibits the enzyme tyrosine hydroxylase, which converts tyrosine into dopamine. By blocking this enzyme, α-methyltyrosine reduces dopamine production and other catecholamines. Carbidopa, on the other hand, inhibits the enzyme dopa decarboxylase,...
1.4K
01:26Targets for Drug Action: Overview
6.2K
Drugs target macromolecules to modify ongoing cellular processes. Primary drug targets include receptors, ion channels, transporters, and enzymes.
Receptors are either membrane-spanning or intracellular proteins, which upon binding a ligand, get activated and transmit the signal downstream to elicit a response. Drugs bind receptors, either mimicking the action of endogenous ligands or blocking the receptor activity to bring about a modified response. Nearly 35% of approved drugs target the G...
Receptors are either membrane-spanning or intracellular proteins, which upon binding a ligand, get activated and transmit the signal downstream to elicit a response. Drugs bind receptors, either mimicking the action of endogenous ligands or blocking the receptor activity to bring about a modified response. Nearly 35% of approved drugs target the G...
6.2K