Monoamine oxidase (MAO)

评估了溴法罗明（CGP 11305A，BRO）对培养皮质细胞中 MAO-A 活性的影响，以评估保护作用是否与 MAO-A 的抑制有关或由替代机制产生。首先，培养的皮质细胞中的 MAO-A 活性被证明是显着的，并且发现溴法罗明以浓度依赖性方式阻断这种酶。 Bromfaramine 的 IC50 为 0.19 μM。希尔系数为 0.96。在 10 μM 时，该酶几乎完全被抑制。在我们培养的皮质细胞中，溴法罗明以浓度依赖性方式抑制 MAO-A 活性。溴法罗明的 IC50 范围为 0.01 μM 至 0.1 μM[1]。

Metabolism / Metabolites
Brofaromine has known human metabolites that include O-desmethyl-brofaromine.

mouse LDLo oral 300 mg/kg BEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD Journal of Pharmacology and Experimental Therapeutics., 284(983), 1998 [PMID:9495858]

[1]. Pirlindole and dehydropirlindole protect rat cultured neuronal cells against oxidative stress-induced cell death through a mechanism unrelated to MAO-A inhibition. Br J Pharmacol. 2002 Feb;135(3):713-20.

It has been shown that the MAO (monoamine oxidase)-B inhibitor deprenyl (DPR, selegiline) protects some cell types against oxidative stress. By decreasing H(2)O(2) production, MAO-A inhibitors could also reduce oxidative stress. This study reports the effect of the MAO-A inhibitors, pirlindole (PIR), dehydropirlindole (DHP), brofaromine (BRO) and moclobemide (MCL) on primary-cultured brain cells exposed to iron-mediated toxicity. A comparison with trolox (TRO), a hydrosoluble vitamin-E analogue that protects against such an induced stress, was performed. Rat hippocampal or cortical cultured cells were exposed either to 2 microM FeSO(4) alone or in the presence of PIR, DHP, BRO, DPR, MCL or TRO. Cell survival (lactate-dehydrogenase measurements, 16 h incubation), intracellular peroxide production (DCF-fluorescence, 1 h incubation), lipoperoxidation (TBARS-fluorescence, 6 h incubation) and mitochondrial function (MTT-test, 16 h incubation) were assessed. PIR, DHP and TRO significantly protected cultures (P<0.05) against Fe(2+)-induced toxicity in a concentration-dependent manner. The EC(50s) of these compounds were 6, 12 and 19 microM, respectively, in hippocampal cells. For cortical cell cultures incubated in the presence of iron and PIR or DHP, EC(50s) were 5 and 6 microM respectively. All Hill coefficients were close to unity. BRO, MCL and DPR were not protective in any type of culture. The IC(50s) for the inhibition of MAO-A were 2, 2 and 0.2 microM for PIR, DHP and BRO, respectively. PIR, DHP and TRO, but not DPR, induced a significant decrease in both intracellular peroxide production and lipoperoxidation. They also improved mitochondrial function. These experiments show that PIR and DHP can protect hippocampal and cortical neurons against oxidative stress at pharmacologically relevant concentrations. This protective effect seems unrelated to inhibition of MAO-A, but possibly involves free radical scavenging. [1]

C14H16NO2BR

310.18634

309.036

63638-91-5

63638-90-4 (HCl);63638-91-5;

44571

Off-white to light yellow solid powder

1.386g/cm3

404ºC at 760 mmHg

198.2ºC

1.588

3.999

34.4

1

3

2

18

283

0

WZXHSWVDAYOFPE-UHFFFAOYSA-N

InChI=1S/C14H16BrNO2/c1-17-11-6-10-7-13(9-2-4-16-5-3-9)18-14(10)12(15)8-11/h6-9,16H,2-5H2,1H3

4-(7-bromo-5-methoxy-1-benzofuran-2-yl)piperidine

Brofaromine; 63638-91-5; Brofaremine; Consonar; Brofaromine [INN]; Brofaromina; Brofarominum; Brofarmine;

2934.99.9001

Powder      -20°C    3 years

                     4°C     2 years

In solvent   -80°C    6 months

                  -20°C    1 month

Room temperature (This product is stable at ambient temperature for a few days during ordinary shipping and time spent in Customs)

DMSO : ~250 mg/mL (~805.96 mM)

配方 1 中的溶解度: ≥ 6.25 mg/mL (20.15 mM) (饱和度未知) in 10% DMSO + 40% PEG300 + 5% Tween80 + 45% Saline (这些助溶剂从左到右依次添加，逐一添加), 澄清溶液。
例如，若需制备1 mL的工作液，可将100 μL 62.5 mg/mL澄清的DMSO储备液加入到400 μL PEG300中，混匀；再向上述溶液中加入50 μL Tween-80，混匀；然后加入450 μL生理盐水定容至1 mL。
*生理盐水的制备：将 0.9 g 氯化钠溶解在 100 mL ddH₂O中，得到澄清溶液。

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配方 2 中的溶解度: ≥ 6.25 mg/mL (20.15 mM) (饱和度未知) in 10% DMSO + 90% (20% SBE-β-CD in Saline) (这些助溶剂从左到右依次添加，逐一添加), 澄清溶液。
例如，若需制备1 mL的工作液，可将 100 μL 62.5mg/mL澄清的DMSO储备液加入到900μL 20％SBE-β-CD生理盐水中，混匀。
*20% SBE-β-CD 生理盐水溶液的制备（4°C，1 周）：将 2 g SBE-β-CD 溶解于 10 mL 生理盐水中，得到澄清溶液。

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配方 3 中的溶解度: ≥ 6.25 mg/mL (20.15 mM) (饱和度未知) in 10% DMSO + 90% Corn Oil (这些助溶剂从左到右依次添加，逐一添加), 澄清溶液。
例如，若需制备1 mL的工作液，可将 100 μL 62.5 mg/mL 的澄清 DMSO 储备液加入到 900 μL 玉米油中并混合均匀。

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请根据您的实验动物和给药方式选择适当的溶解配方/方案：
1、请先配制澄清的储备液(如：用DMSO配置50 或 100 mg/mL母液(储备液));
2、取适量母液，按从左到右的顺序依次添加助溶剂，澄清后再加入下一助溶剂。以 下列配方为例说明 (注意此配方只用于说明，并不一定代表此产品 的实际溶解配方):
10% DMSO → 40% PEG300 → 5% Tween-80 → 45% ddH2O (或 saline);
假设最终工作液的体积为 1 mL, 浓度为5 mg/mL: 取 100 μL 50 mg/mL 的澄清 DMSO 储备液加到 400 μL PEG300 中，混合均匀/澄清；向上述体系中加入50 μL Tween-80，混合均匀/澄清；然后继续加入450 μL ddH2O (或 saline)定容至 1 mL；
3、溶剂前显示的百分比是指该溶剂在最终溶液/工作液中的体积所占比例;
4、 如产品在配制过程中出现沉淀/析出，可通过加热(≤50℃)或超声的方式助溶;
5、为保证最佳实验结果，工作液请现配现用！
6、如不确定怎么将母液配置成体内动物实验的工作液，请查看说明书或联系我们;
7、 以上所有助溶剂都可在 Invivochem.cn网站购买。