• Title/Summary/Keyword: Lipid Synthesis

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Royal Jelly Protein and Lipid Composition in Apis cerana indica F.

  • Shinkhede, Milind Manohar;Tembhare, Dnyaneshwar Bapuji
    • International Journal of Industrial Entomology and Biomaterials
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    • v.18 no.2
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    • pp.139-142
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    • 2009
  • The histological and transmission electron microscopic studies revealed the synthesis activity predominantly in the hypopharyngeal glands of the nurse bees. The biochemical analysis of both, the hypopharyngeal gland extract and royal jelly elucidated unequivocally the proteins and lipids as the major constituents. Further the SDS-PAGE of hypopharyngeal gland extract showed about 17 protein bands, perhaps 14.10, 20.00, 29.00 and 43.00 kDa predominantly while that of royal jelly revealed only two protein bands of 29.00 and 43.00 kDa molecular weight suggesting them as the major royal jelly proteins (MRJP). The lipid profile of royal jelly consists of triglycerides, cholesterol, HDL, LDL and VLDL.

Anti-obesity Effect of Black Vinegar Fermented with Herbal Extracts

  • Lee, Dongsub;Park, Sangwook
    • Biomedical Science Letters
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    • v.23 no.4
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    • pp.402-405
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    • 2017
  • Vinegar has been widely produced for a variety of industrial and domestic use as well as medicinal use. For sale of the commercial vinegar with herbal extracts, we produced an experimental black vinegar through sequential fermentation of alcohol, followed by acetic acid according to the manufacturer's procedure. To investigate the effect of anti-obesity of black vinegar on biochemical values, we evaluated enzyme activities via acetyl-CoA carboxylase (ACC), which plays a critical role in the lipid metabolism. We found that increased phosphorylated adenosine monophosphate (AMP) activated protein kinase (AMPK) and ACC in L6 mouse muscle cells treated with the manufactured vinegar. Based on the results, supplementation of experimental herbal black vinegar inactivates ACC, enhancing the phosphorylation of AMPK. Thus, the lipid oxidation and inhibitory effect of fatty acid synthesis by the black vinegar expects to facilitate the anti-obesity activity.

Health Promoting Effects of Lactoferrin from Milk

  • Shimizu, Hirohiko;Ando, Kunio;Hoshino, Tatsuo
    • Journal of Dairy Science and Biotechnology
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    • v.24 no.2
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    • pp.21-24
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    • 2006
  • The ubiquitous presence of lactoferrin(LF) receptor in human as reported by the research group of Prof. Bo Lonnerdal, Univ. California (Suzuki, Y. A.,2001) encouraged us to search for the unknown physiological roles of Lf. Under the collaboration with Prof. Etsumori Harada, Tottori Univ., and his research group, we have found two novel biological activities of LF as the control of the lipid metabolism and the effect on the central nervous system. Relating to the lipid metabolism, LF could, in animal experiments, reduce triglyceride and total cholesterol both in blood and liver (Takeuchi, T et αl., 2003). LF increased plasms HDL-C and lowered LDL-C. In the central nervous system, LF showed anti-nociceptive activity mediated by ${\mu}$-opioid receptor in the rat spinal cord (Hayashida, K. et al., 2003). LF enhanced analgesic action of morphine synergistically via nitric oxide synthesis (Hayashida, K., et al., 2003) LF showed opioid-mediated suppressive effect on distress induced by maternal separation in rat pups (Takeuchi, T., et al., 2003).

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Electron Microscopic Study of Fat-storing Cells in Liver of Rabbits Given Ginseng (인삼투여가토(人蔘投與家兎) 간지방섭취세포(肝脂肪攝取細胞)의 전자현미경적관찰(電子顯微鏡的觀察))

  • Lee, Jae-Hyun;Woun, Bong-Rae
    • Korean Journal of Veterinary Research
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    • v.20 no.2
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    • pp.143-150
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    • 1980
  • The light and electron microscopic observations were carried out in order to know the morphological changes of the fat-storing cells (FSC) in the liver of rabbits given Ginseng for 30 days. The results obtained were as follows: The FSC of experimental group was shown the appearance of a few large lipid droplets, enlarged rough surfaced endoplasmic reticulum, some residual body in the enlarged rER and the nuclear body in some cases. As these findings, it could be suggested that the Ginseng affect the synthesis and accumulation of lipid on the FSC.

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Health Promoting Effect of Lactoferrin from Milk

  • Hoshino, Tatsuo;Shimizu, Hirohiko;Ando, Kunio
    • 한국유가공학회:학술대회논문집
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    • 2005.10a
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    • pp.1-9
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    • 2005
  • The ubiquitous presence of lactoferrin (LF) receptor in human as reported by the research group of Prof, Bo Lonnerdal, Univ. California, encouraged us to search for the unknown physiological roles of LF. Under the collaboration with Prof. Etsumori Harada, Tottori Univ., and his research group, we have found two novel biological activities of LF as the control of the lipid metabolism and the effect on the central nervous system. Relating to the lipid metabolism, LF could, in animal experiments, reduce triglyceride and total cholesterol both in blood and liver. LF increased plasma HDL-C and lowered LDL-C. In the central nervous system, LF showed anti-nociceptive activity mediated by ${\mu}$-opioid receptor in the rat spinal cord. LF enhanced analgesic action of morphine synergistically via nitric oxide synthesis. LF showed opioid-mediated suppressive effect on distress induced by maternal separation in rat pups.

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Synthesis and Antioxidant Properties of Some Novel Benzimidazole Derivatives on Lipid Peroxidation in the Rat Liver

  • Canan Kus;Gulgun, Ayhan-Kilcigil;Eke, Benay-Can;Mumtaz Iscan
    • Archives of Pharmacal Research
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    • v.27 no.2
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    • pp.156-163
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    • 2004
  • Some benzimidazole derivatives namely 1-[(substituted thiocarbamoylhydrazine carbonyl) methyl]-2-phenyl-1 H-benzimidazoles (1a-13a), N-[(2-phenylbenzimidazol-1-yl methyl)-[1,3,4]-thiadiazole-2-yl]-substituted phenyl amines (1b-13b) and 5-(2-phenyl benzimidazol-1-yl-methyl)-4-substituted phenyl-4H-1,2,4-triazole-3-thiones (1c-13c) were synthesized, and their in vitro effects on the rat liver microsomal NADPH-dependent lipid peroxidation (LP) levels were determined. The most active compound 10a caused an 84% inhibition of LP at $10^{-3}$ M, which is better than that of butylated hydroxytoluene (BHT) (65%).

Study of Glycyrrhizic Acid:menthol Supramolecular Complexes on Mitochondrial Functional Activity in in-vitro Experiments

  • L. A. Еttibaeva;U. K. Abdurakhmanova;A. D. Matchanov
    • Journal of the Korean Chemical Society
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    • v.67 no.2
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    • pp.99-105
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    • 2023
  • Here we present how a supramolecular complex of Glycyrrhizic acid (GA) with Menthol (Mt) affects the blood glucose levels and glycogen synthesis in the liver of rats in in-vivo experiments with diabetes caused by alloxan. We have shown that Menthol, Glycyrrhizic acid and GA:Mt supramolecular complexes can restore functional dysfunction of the liver mitochondria in alloxan diabetes, i.e., inhibit lipid peroxidation. The hypoglycemic activity and mitochondrial membrane stabilizing properties of the supramolecular complex GA:Mt (4:1) in alloxan diabetes were more pronounced than those of menthol, GA and its GA:Mt (2:1) and GA: Mt (9:1) supramolecular complexes.

Antiadipogenic Effects of Red Radish (Raphanus sativus L.) Sprout Extract in 3T3-L1 Preadipocytes (적무 새싹 추출물의 3T3-L1 지방전구세포에서 지방합성 억제 효과)

  • Kim, Da Hye;Kim, Sang Jun;Jeong, Seung-Il;Cheon, Chun Jin;Kim, Seon-Young
    • Journal of Life Science
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    • v.24 no.11
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    • pp.1224-1230
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    • 2014
  • The red radish (Raphanus sativus L.; RR) sprout is a plant of the cruciferous family. In this study, we elucidated the effect of the water extract of RR sprout (RRSE) against ${\alpha}$-amylase, ${\alpha}$-glucosidase, and pancreatic lipase enzyme activity and adipogenesis in 3T3-L1 preadipocytes. ${\alpha}$-amylase, ${\alpha}$-glucosidase, and pancreatic lipase enzyme activity was inhibited in a concentration-dependent manner by RRSE treatment. RSSE also abolished adipocyte differentiation and lipid and triglyceride accumulation without cytotoxicity in 3T3-L1 adipocytes. In addition, RRSE modulated the expression of the proteins related to adipogenic transcription factors: peroxisome proliferator-activated receptor (PPAR)${\gamma}$, sterol regulatory element-binding protein 1 (SREBP-1), and CCAT/enhancer binding protein (C/EBP)${\alpha}$. RRSE also suppressed expression of the proteins responsible for lipid synthesis, transport, and storage: adiponectin, fatty acid synthesis (FAS), perilipin, and fatty acid bind protein-4 (FABP4). This study showed that RRS treatment has the potential to inhibit obesity by controlling the expression of adipogenic transcription factors and adipogenic proteins.

Effects of Carbohydrates on the Biosynthesis of Phospholipids and Fatty Acid Composition in Aspergillus, Rhizopus and Candida Cells (탄수화물이 Aspergillus, Rhizopus, Candida 세포의 인지질 합성과 지방산 조성에 미치는 영향)

  • Cho, Sun-Hee;Lee, Chong-Sam
    • The Korean Journal of Mycology
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    • v.22 no.1
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    • pp.8-30
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    • 1994
  • The synthesis of phospholipids and the composition of fatty acids were analyzed in the fungal cells of Aspergillus phoenicis, Rhizopus acidus and Candida albicans treated with carbon sources (glucose, sucrose, raffinose) during the culture. Growth ratios were predominantly in Aspergillus and Candida treated with sucrose and those in Rhizopus treated with glucose. The synthesis of total lipids were accelerated in Aspergillus and Rhizopus with glucose and the contents of total lipid was increased in Candida with raffinose. The glucose treatment increased Phosphatidylinositol(PI) content by 73.7% for Aspergillus and Phosphatidylcholine(PC) content by 292% for Rhizopus. In sucrose treatment the synthesis of PI was accelerated 112% for Aspergillus and that of PC was increased 77.7% for Rhizopus and 71.8% for Candida. In raffinose treatment, the content of PC was increased 79.5% for Aspergillus, the biosynthesis of Phosphatidylethanolamine(PE) was inhanced 50.9% for Rhizopus and 49.1% for Candida. In Aspergillus and Candida, oleic acid and linoleic acid were major fatty acids for biosynthesis of PC and PE when the three carbon sources were treated. The major fatty acids for biosynthesis of phospholipid was palmitic acid and linoleic acid in Aspergillus, palmitic acid in Rhizopus and oleic acid in Candida. Palmitic acid was one of major fatty acids utilized for the biosynthesis of phospholipid(PC, PE, PI) in the fungal cells treated with carbohydrates.

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Knockdown of endogenous SKIP gene enhanced insulin-induced glycogen synthesis signaling in differentiating C2C12 myoblasts

  • Xiong, Qi;Deng, Chang-Yan;Chai, Jin;Jiang, Si-Wen;Xiong, Yuan-Zhu;Li, Feng-E;Zheng, Rong
    • BMB Reports
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    • v.42 no.2
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    • pp.119-124
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    • 2009
  • PI(3,4,5)$P_3$ produced by the activated PI3-kinase is a key lipid second messenger in cell signaling downstream of insulin. Skeletal muscle and kidney-enriched inositol phosphatase (SKIP) identified as a 5'-inositol phosphatase that hydrolyzes PI(3,4,5) $P_3$ to PI(3,4)$P_2$, negatively regulates the insulin-induced glycogen synthesis in skeletal muscle. However the mechanism by which this occurs remains unclear. To elucidate the function of SKIP in glycogen synthesis, we employed RNAi techniques to knockdown the SKIP gene in differentiating C2C12 myoblasts. Insulininduced phosphorylation of Akt (protein kinase B) and GSK-3$\beta$ (Glycogen synthase kinase), subsequent dephosphorylation of glycogen synthase and glycogen synthesis were increased by inhibiting the expression of SKIP, whereas the insulin-induced glycogen synthesis was decreased by overexpression of WT-SKIP. Our results suggest that SKIP plays a negative regulatory role in Akt/ GSK-3$\beta$/GS (glycogen synthase) pathway leading to glycogen synthesis in myocytes.