• 생명과학회지
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• 제20권7호
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• pp.1113-1120
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• 2010

본 연구는 macelignan과 CTH를 제2형 당뇨병동물모델에 3주간 병용 투여하여 macelignan을 단독으로 투여했을 때보다 더 나은 효과가 있는지를 살펴 보았다. Macelignan과 CTH의 병용 투여는 공복혈당과 내당능을 비롯하여 혈중 free fatty acids, HTR, 그리고 AI에서는 macelignan 단독 투여군과 비교하여 유의적으로 나타나는 큰 차이를 발견할 수는 없었다. 그러나, HbA1c, insulin 민감도, 그리고 혈중 triglyceride 함량에서는 유의적인 변화를 보이며 효과가 있는 것으로 나타났다. 따라서, macelignan의 단독 투여보다 CTH를 병용 투여하는 것이 당뇨병 합병증을 예방하거나 개선시킬 수 있는 잠재력이 있을 것으로 판단된다. 이에 보다 명확하게 검증하기 위해 혈당 및 대사조절 기전연구를 위한 further study가 진행되어야 할 것으로 사료된다.

• Food Science and Biotechnology
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• 제18권5호
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• pp.1301-1304
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• 2009

Macelignan is a bioactive compound isolated from nutmeg (Myristica fragrans Houtt.) which has been traditionally used for the food and pharmaceutical purposes. In this study, the activities of macelignan against vegetative cells and spores of Bacillus cereus were evaluated in vitro. Our results showed that the vegetative cells of B. cereus were significantly inhibited in growth by macelignan with minimum inhibitory concentration (MIC) of $4{\mu}g/mL$. The vegetative cells of B. cereus were completely killed with minimum bactericidal concentration (MBC) of $8{\mu}g/mL$ of macelignan. Killing time of macelignan against vegetative cells of B. cereus was very fast; endpoint of macelignan was reached after 4 hr of incubation at $4{\times}MIC$. Macelignan inactivated more than 3-log (99.9%) of spores/mL of B. cereus at the concentration of $100{\mu}g/mL$. Macelignan was found to be effective against vegetative cells and spores of B. cereus. These results suggest that macelignan might be good to be developed as a food preservative.

• Natural Product Sciences
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• 제23권1호
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• pp.21-28
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• 2017

In our program to search for new AMP-activated protein kinase (AMPK) activators from plants that exert potential anticancer property, we found that an EtOAc extract of Myristica fragrans (nutmeg) activated AMPK enzyme in human breast cancer MCF-7 cells. Two major diarylbutane-type lignans, macelignan and meso-dihydroguaiaretic acid (MDGA), were isolated as active principles from this extract. Treatment of breast cancer cells with two compounds induced cellular apoptosis, evidenced by cleavage of poly-(ADP-ribose) polymerase (PARP) and Ser 15 phosphorylation of p53. Moreover, macelignan and MDGA significantly inhibited the colony formation of MCF-7 breast cancer cells on soft agar. Intraperitoneal injection of macelignan and MDGA (20 mg/kg) suppressed the tumor growth of 4T1 mammary cancer cells. These results indicate that the chemopreventive effects of two major diarylbutane-type lignans from Myristica fragrans (nutmeg) may be associated with induction of apoptosis presumably through AMPK activation.

• 생약학회지
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• 제17권3호
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• pp.189-194
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• 1986

The single acute treatment of mice with the steam distillate, non-volatile ether extract and methanol extract from mace, arils of Myristica fragrans(Myristicaceae) caused a significant prolongation of hexobarbital-induced narcosis, an increase in strychnine toxicity as well as a significant decrease in hepatic microsomal drug metabolizing enzyme activities. On seven daily consecutive administrations, however, the duration of narcosis was markedly shortened and significant increases in the hepatic enzyme activities were shown. From the non-volatile ether fraction, macelignan, a new lignan, mp $70{\sim}72^{\circ}$ was isolated as an active principle.

• 생명과학회지
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• 제25권11호
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• pp.1298-1303
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• 2015

후박나무(녹나무과)는 한국과 일본 등지에 서식하는 상록 교목으로 한국, 중국, 일본에서 부종, 복통, 복부 팽만 등의 질병 치료를 위해 오랫동안 사용되어오고 있다. 본 연구에서는 후박나무 껍질을 메탄올에 추출하고 메탄올 추출물을 헥산, 클로로포름, 부탄올에 순차적으로 분획하였다. 클로로포름 분획물로부터 2종의 화합물을 분리하였으며 분리된 화합물1과 2의 구조는 ¹H-, ¹³C-NMR과 참고 문헌 데이터에 의해 dibenzylbutane lignin 화합물인 macelignan (1)과 meso-dihydroguaiaretic acid (2)로 동정되었다. 분리된 화합물들의 tyrosinase 저해 활성을 측정한 결과, 화합물 2는 tyrosinase 저해 활성 중 monophenolase (IC₅₀ = 10.2 μM)에 대해 높은 저해활성을 나타내는 경쟁적 저해제였으며 효소에 결합하는 화합물 2의 저해 상수(K_i 값)는 4.8 μM였다. 따라서 meso-dihydroguaiaretic acid (2)는 멜라닌 생합성과 관련된 피부 질환 치료를 위한 잠재적 후보가 될 수 있을 것으로 판단된다.

• 생약학회지
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• 제21권4호
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• pp.270-273
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• 1990

Antioxidant activity of diarylbutane type lignans was evaluated in TBA-reactant assay to elucidate the structure-activity relationship. The antioxidant potency of lignans increased with increasing the number of hydroxyl groups, with the exception of macelignan(I), which showed a more potent activity than demethyl meso-dihydroguaiaretic acid(III).

• 약학회지
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• 제46권2호
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• pp.98-101
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• 2002

The phytochemical study of nutmeg, the seeds of Myristica fragrans Houttuyn (Myristicaceae) led to the isolation of three lignans, safrole (I), macelignan (III), and a 3,4 : 3',4'-bis(methylenedioxy)lignan (II). The compound II was identified by a mixture (1:1) of (8S, 8'R)- and (8S, 8'S)-forms of bis(3, 4-methylenedioxy)-8, 8'-neolignan by $^1$H-, $^{13}$ C-NMR and $^1$H-$^1$H COSY spectral data. The compound II was isolated for the first time from Myristica fragrans.

• Archives of Pharmacal Research
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• 제13권3호
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• pp.265-268
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• 1990

The effects of lignans, related to macelignan, on hepatic microsomal drug-metabolizing enzyme (DME) activity were evaluated to elucidate the structure-activity relationship in mice and rats. The compounds carrying the methylenedioxyphenyl nucleus were found to be the msot potent among compounds tested; which not only produced a marked inhibition of DME with a single dose but a significant induction with repeated treatments. Lack of the methylenedioxy group caused marked decrease in the activity, implying that a methylenedioxy group is essential and of major importance eliciting DME modifying activity.

• 생약학회지
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• 제36권3호통권142호
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• pp.240-244
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• 2005

The methanol extract of the seed of Myristica fragrans (myristicaceae) demonstrated a potent inhibition on the proliferation of cultured human tumor cells such as A549 (non small cell lung), SK-OV-3 (ovary), SK-MEL-2(melanoma), XF498 (central nerve system) and HCT-15(colon). The MeOH extract was fractionated into three portions by serial solvent partition i,e., EtOAc soluble part, BuOH soluble part and remaining water layer. Among them, the EtOAc soluble part of the extract demonstrated a potent inhibition on the proliferation of cultured human tumor cells, Bioassay-guided fractionation of the EtOAc soluble part led to the isolation of six lignan constituents, i.e., safrole(1), machilin A (2), licarin B (3), macelignan (4), mesodihydroguaiaretic acid (5) and myristargenol A (6) as well as a large amount of myristic acid as active ingredients. Structures of the isolated active components (1-6) were established by chemical and spectroscopic means.

• 생약학회지
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• 제37권3호
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• pp.206-211
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• 2006

The methanol extract from seed of Myristica fragrans (Myristicaceae) demonstrated a potent inhibition on the pro-liferation of cultured human tumor cells such as A549 (non small cell lung), SK-OV-3 (ovary), SK-MEL-2 (melanoma), XF498 (central nerve system) and HCT-15 (colon) in vitro. By the continuous effort to purify the active components responsible far the anti-proliferative effect on tumor cell lines, we have isolated eleven kinds of lignan components, i. e., safrole (1), machilin A (2), licarin B (3), macelignan (4), mere-dihydroguaiaretic acid (5), mγnstargenol A (6), methoxyeugenol (7), machilin F (8), licarin A (9), nectandrin B (10), and 2-(4-allyl-2,6-dimethoxyphenoxy)-1-(4-hydroxy-3-methoxyphenyl)propan-1-ol (11) together with a novel furan fatty acid, (E)-3-(3-methyl-5-pentylfuran-2-yl) acrylic acid (12) from seed extract of M. fragrans. Chemical structures of the isolated components (1-12) were established bγ the aid of NMR spectroscopic analyses, i. e., COSY HMQC and HMBC. Each of the Isolates demonstrated a potent inhibition on the proliferation of cultured human tumor cells such as A549 (non small cell lung), SK-OY-3 (ovary), SK-MEL-2 (melanoma) and HCT-15 (colon) in vitro.