• Title/Summary/Keyword: cerebroside B

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Effect of Glucosylceramides and Sterols Isolated from Agaricus Blazei Extract on Improvement of Skin Cell (신령버섯에서 분리된 Glucosylceramide 및 Sterol의 피부 세포 개선 효과)

  • Kim, Jeong Eun;Lee, So Young;Chang, Yunhee;Jin, Mu Hyun
    • Journal of the Society of Cosmetic Scientists of Korea
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    • v.46 no.2
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    • pp.105-117
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    • 2020
  • Agaricus blazei Murill (Almond mushroom) has many beneficial effects, such as anti-cancer, immuneenhancement, and anti-obesity. Also, its skin benefits have been reported for antioxidant, anti-inflammatory, and whitening. In order to elucidate these effects, many studies have been conducted. In this study, we reconfirmed the skin efficacy of the extract of the mushrooms mushrooms. The Agaricus blazei extract showed inhibition of melanin synthesis, enhancement of collagen synthesis, and up-regulation of gene expression (hyaluronan syntahase-2, 3 and aquaporin-3) at 100 ㎍/mL. and identified the ingredients from the extract. We further investigated them to find an applicability as cosmetic ingredients. The ingredients were confirmed comparison of their spectroscopic data with literature values. They were identified as being ergosterol (1), 5-dihydroergosterol (2), cerevisterol (3), cerebroside B (4), cerebroside D (5), adenosine (6), and benzoic acid (7). Among these compounds, we evaluated skin efficacy for two cerebrosides and three ergosterol derivatives that have not been reported its efficacy. As a result, 5-dihydroergosterol (2) inhibited melanogenesis in B16F10 and promoted collagen biosynthesis in human dermal fibroblast. In addition, cerevisterol (3), cerebroside B (4), and cerebroside D (5) inhibited NO production in RAW 264.7 cell. In particular, cerebroside D (5) increased the expression of hyaluronan synthase-2 and aquaporin-3 genes in HaCaT. These results suggest that Agaricus blazei extract and isolated compounds can be used as cosmetic ingredients.

A Sphingolipid and Tyrosinase Inhibitors from the Fruiting Body of Phellinus linteus

  • Kang, Hye-Sook;Park, Jin-Ho;Cho, Won-Ki;Park, Jong-Cheal;Choi, Jae-Sue
    • Archives of Pharmacal Research
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    • v.27 no.7
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    • pp.742-750
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    • 2004
  • This paper for the first time reports the isolation of 5 compounds from Phellinus linteus. A sphingolipid (1) and two tyrosinase inhibitory compounds (2, 3) along with two carboxylic acids (4, 5), were isolated from the fruiting body of Phellinus linteus (Berk & Curt) Aoshima. The structure of compound 1 was identified as 1-O-$\beta$-D-glucopyranosyl-(2S, 3R, 4E, 8E)-2-[(2R)-2-hydroxyhexadecanoylamino]-9-methyl-4,8-octadecadiene-1,3-diol, known as cerebroside B, based on spectroscopic methods such as 1D and 2D NMR as well as by acid hydrolysis. Compounds 2-5 were identified as protocatechualdehyde (2), 5-hydroxymethyl-2-furaldehyde (HMF) (3), succinic acid (4), and fumaric acid (5) based on the spectroscopic evidence. Compounds 2 and 3 inhibited the oxidation of L-tyrosine catalyzed by mushroom tyrosinase with an $IC_{50}$ of 0.40 and 90.8 $\mu\textrm{g}$/mL, respectively. The inhibitory kinetics, which were analyzed by the Lineweaver-Burk plots, were found to be competitive and noncompetitive inhibitors with a $K_{j}$ of 1.1 $\mu\textrm{m}$ and 1.4 mM, respectively.

Effect of Long-Term Pyridoxine Depletion on Lipid Composition in the Developing Rat Brain (장기간의 Pyridoxine 부족이 새끼쥐 뇌의 지방조성에 미치는 영향)

  • 김정희
    • Journal of Nutrition and Health
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    • v.20 no.5
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    • pp.318-329
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    • 1987
  • Weanling female Sprague Dawley rate were fed 1.2mg pyridoxine' HCl/kg diet Cdepleted diet) and 2 22mg pyridoxine' HCI/kg dietCcontrol diet). The control and one depleted group were fed their diets throughout growth, gestation, and lactation. Other three depleted groups were fed the depleted diet throught growth and gestation, and then pyridoxine w was supplemented by feeding control diet at 5, 10, and 21 days postpartum. The brains were analyzed for proteolipid protein, cholesterol, and cerebrosi­d de. Percentage stimulation of erythrocyte alanine aminotransferase activity was also determined. Body and brain weight were significantly lower at all ages in depleted group than the control and depleted group showed inadequacy of B6 at all ages. PProteolipid protein and cholesterol were significa­n ntlylower in the depleted group at 10, 21, 35 and 5 50 days. The postnatal development of cerebroside in brain was delayed in depleted groups suppleme­I nted at 5, 10, and 21 days. When supplementation was initiateo at 5 days postparturn, contents of cho­lesterol proteolipid protein were reversed. But some differences in brain development of pups we­re evident when supplementation of dams was de­layed to 10 days or 21 days.

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Aqueous extract of Lycii fructus suppresses inflammation through the inhibition of nuclear factor kappa B signal pathway in murine raw 264.7 macrophages

  • Kim, Beum-Seuk;Lim, Hyung-Ho;Song, Yun-Kyung;Sung, Yun-Hee;Kim, Sung-Eun;Chang, Hyun-Kyung;Shin, Mal-Soon;Kim, Chang-Ju;Lee, Hye-Jung;Kim, Dong-Hee
    • Advances in Traditional Medicine
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    • v.10 no.3
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    • pp.155-164
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    • 2010
  • Lycii fructus is the fruit of Lycium chinense Miller and is part of the Solanaceae family. Lycii fructus produces various effects such as hypotensive, hypoglycemic, anti-pyretic, and anti-stress activities. Lycii fructus is known to contain betaine, carotene, nicotinic acid, zeaxanthin, and cerebroside. In the present study, the effects of Lycii fructus aqueous extract on lipopolysaccharide (LPS)-induced inflammation in murine raw 264.7 macrophage cells were investigated. In this study we utilized the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay, reverse transcriptionpolymerase chain reaction (RT-PCR), Western blotting, and nitric oxide (NO) detection. Lycii fructus aqueous extract suppressed NO production by inhibiting the LPS-induced expressions of inducible nitric oxide synthase (iNOS) and tumor necrosis factor-alpha (TNF-$\alpha$) mRNA and iNOS protein in murine raw 264.7 macrophage cells. Also, Lycii fructus aqueous extract suppressed the activation of nuclear factor-kappa B (NF-${\kappa}B$) in the nucleus. These results demonstrated that Lycii fructus aqueous extract causes an anti-inflammatory effect that was likely produced by the suppression of iNOS expression through the down-regulation of NF-$\hat{e}B$ binding activity.

Phytochemical Studies on Rehmanniae Radix Preparata (숙지황(熟地黃)의 성분연구)

  • Lee, Joo-Young;Lee, Eun-Ju;Kim, Ju-Sun;Lee, Je-Hyun;Kang, Sam-Sik
    • Korean Journal of Pharmacognosy
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    • v.42 no.2
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    • pp.117-126
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    • 2011
  • Twenty-two compounds were isolated from the 70% ethanolic extract of Rehmanniae Radix Preparata (Scrophulariaceae) and their structures were identified as three triterpenoids [oleanolic acid (1), pomonic acid (2) and ursolic acid (5)], an iridoid, catalpol (13), four furan derivatives [5-hydroxymethyl-2-furaldehyde acetate (3), 5-hydroxymethyl-2-furfural (6), 5-hydroxymethyl-2-furancarboxylic acid (7), and 5-(${\alpha}$-D-galactopyranosyloxymethyl)-2-furancarboxaldehyde (15)], three phenethyl alcohol glycosides [darendoside B (14), phenethyl alcohol 2-O-${\beta}$-D-xylopyranosyl(1${\rightarrow}$6)-${\beta}$-D-glucopyranoside (17), and salidroside (19)], four sugar derivatives [L-arabinose (11), raffinose (20), stachyose (21), and mannitol (22)], and seven others [2,5-dihydroxyacetophenone (4), succinic acid (8), daucosterol (9), ${\beta}$-sitosterol (10), adenosine (16), uridine (18) jio-cerebroside (12)]. The chemical structures of these compounds were identified on the basis of spectroscopic methods and comparison with literature values. This is the first report of the triterpenoids oleanolic acid (1), pomonic acid (2), and ursolic acid (5) from the genus Rehmannia, as well as the first report of compounds 5-hydroxymethyl-2-furaldehyde acetate (3), 2,5-dihydroxyacetophenone (4), daucosterol (9), darendoside B (14), 5-(${\alpha}$-D-galactopyranosyloxymethyl)-2-furancarboxaldehyde (15), adenosine (16), phenethyl alcohol 2-O-${\beta}$-D-xylopyranosyl(1${\rightarrow}$6)-${\beta}$-D-glucopyranoside (17), and salidroside (19) from the Rehmanniae Radix Preparata.

Preparation and Characterization of a Polar Milk Lipid-enriched Component from Whey Powder

  • Lee, Kwanhyoung;Kim, Ara;Hong, Ki-Bae;Suh, Hyung Joo;Jo, Kyungae
    • Food Science of Animal Resources
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    • v.40 no.2
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    • pp.209-220
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    • 2020
  • Milk fat globule membrane (MFGM) is a lipid carrier in mammals including humans that consists mainly of polar lipids, like phospholipids and glycolipids. In this study, a process to enrich polar lipids in commercial butter and whey powder, including polar lipids of MFGM, was developed. WPC (whey protein concentrate) 60 was selected as the most suitable raw material based on the yield, phospholipid, protein, and lactose content of the polar lipid fraction obtained by ethanol extraction of two WPC (WPC60 and WPC70) and two buttermilk (A and B). After fractionation under optimum conditions, the polar-lipid enriched fraction from WPC60 contained 38.56% phospholipids. The content of glycolipids, cerebroside, lactosylceramide, ganglioside GM3, ganglioside GD3, was 0.97%, 0.55%, 0.09%, and 0.14%, respectively. Rancimat results showed that the oxidation stability of fish oil increased with an increase in the polar-lipid fraction by more than 30 times. In addition, the secretion of IL-6 and TNF-α decreased in a concentration-dependent manner after treatment of RAW 264.7 cells with 0.1 to 100 ppm of the polar lipid fraction. In this study, polar lipid concentrates with antioxidant and anti-inflammatory activity, were prepared from milk processing by-products. The MFGM polar lipid concentrates made from by-products are not only additives for infants, but are also likely to be used as antioxidants in cooking oils and as active ingredients for functional foods.

Acute toxicity test and safety classification for Termitomyces albuminosus containing pharmacologically similar ingredient of Aconitum koreanum (백부자-대체 가능 한약재의 계종버섯에 대한 급성독성시험과 안전성등급화)

  • An, Minji;Park, Yeongchul
    • The Korea Journal of Herbology
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    • v.32 no.4
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    • pp.33-38
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    • 2017
  • Objectives : Termitomyces albuminosus (Berk.) Heim is one of the famous wild edible mushrooms in the southern part of China. It is known that Termitomyces albuminosus, like Aconitum koreanum used in Korean traditional medicine, contains a kind of cerebroside, termitomycesphin, causing a pharmacologic effect on the neuron system. The pharmacologic effect of Termitomyces albuminosus can be used to possibly replace Aconitum koreanum. However, It needs to be certified as safe before it can be used. Here, a single-oral toxicity test and safety classification was conducted to obtain acute information of the toxicity of dried-Termitomyces albuminosus powder and to secure its safety in clinical applications. Methods : In order to calculate approximate lethal dose(ALD), test substance was orally administered to male and female SD-rat at dose levels of 5,000 and 0 (vehicle control) mg/kg (body weight). Based on the result of this toxicity, also the estimation of safety classification was calculated using the HED-based (human equivalent dose) MOS (margin of safety). Results : There were no mortalities, test substances treatment-related clinical signs, no changes in the body or organ weights, and no gross or histopathological findings at 14 days after treatment with test substance. Thus, the approximate lethal dose of dried-Termitomyces albuminosus powder was considered over 5,000 mg/kg in both female and male mice. Conclusions : Based on the limit dose, 5000 mg/kg, it was estimated that dried-Termitomyces albuminosus powder is classified as "Specified class B" indicating that clinical dose is not limited to patients as safe as food.

Lipids and Fatty Acids Composition of Korean Native Goat's Bone Marrow (한국 재래산양 골수의 지질 및 지방산 조성)

  • Lee, Y.Y.;Ha, J.K.;Ahn, B.H.;Kang, D.H.;Ki, W.K.;Kim, J.K.
    • Applied Biological Chemistry
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    • v.31 no.2
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    • pp.177-181
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    • 1988
  • Korean native goat's bone marrow was low in triglycerides high in phospholipids and glycolipids. In the fatty acid composition, goat's bone marrow was high in $C_{18:1}$ and low in $C_{18:0}$. Goat's bone marrow also contained more unsaturated fatty acid than saturated fatty acid. Triglyceride and sterylester were more than others in the neutral lipids. Esterified glycoside and monogalactosyl diglyceride were higher than others in the glycolipids. Diphosphatidyl glycerol and phosphatidyl ethanolamine were higher than others in the phospholipids. In the fatty acid composition of triglycerides, Humerus and Radius, Femur and Os coxae and Lumbar vertebra were all higher in $C_{16:0}$, $C_{18:0}$ and $C_{18:1}$ than others in the 1-position of triglycerides and higher in $C_{18:0}$, $C_{18:2}$ and $C_{18:3}$ than others in the 2-position of triglycerides.

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