Literature DB >> 2012010

Lowering of serum cholesterol in hypercholesterolemic humans by tocotrienols (palmvitee).

A A Qureshi1, N Qureshi, J J Wright, Z Shen, G Kramer, A Gapor, Y H Chong, G DeWitt, A Ong, D M Peterson.   

Abstract

A double-blind, crossover, 8-wk study was conducted to compare effects of the tocotrienol-enriched fraction of palm oil (200 mg palmvitee capsules/day) with those of 300 mg corn oil/d on serum lipids of hypercholesterolemic human subjects (serum cholesterol 6.21-8.02 mmol/L). Concentrations of serum total cholesterol (-15%), LDL cholesterol (-8%), Apo B (-10%), thromboxane (-25%), platelet factor 4 (-16%), and glucose (-12%) decreased significantly only in the 15 subjects given palmvitee during the initial 4 wk. The crossover confirmed these actions of palmvitee. There was a carry over effect of palmvitee. Serum cholesterol concentrations of seven hypercholesterolemic subjects (greater than 7.84 mmol/L) decreased 31% during a 4-wk period in which they were given 200 mg gamma-tocotrienol/d. This indicates that gamma-tocotrienol may be the most potent cholesterol inhibitor in palmvitee capsules. The results of this pilot study are very encouraging.

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Year:  1991        PMID: 2012010     DOI: 10.1093/ajcn/53.4.1021S

Source DB:  PubMed          Journal:  Am J Clin Nutr        ISSN: 0002-9165            Impact factor:   7.045


  41 in total

1.  Alpha- and gamma-tocotrienols are metabolized to carboxyethyl-hydroxychroman derivatives and excreted in human urine.

Authors:  J K Lodge; J Ridlington; S Leonard; H Vaule; M G Traber
Journal:  Lipids       Date:  2001-01       Impact factor: 1.880

2.  γ-Tocotrienol but not γ-tocopherol blocks STAT3 cell signaling pathway through induction of protein-tyrosine phosphatase SHP-1 and sensitizes tumor cells to chemotherapeutic agents.

Authors:  Ramaswamy Kannappan; Vivek R Yadav; Bharat B Aggarwal
Journal:  J Biol Chem       Date:  2010-08-18       Impact factor: 5.157

3.  Caveolin and proteasome in tocotrienol mediated myocardial protection.

Authors:  Manika Das; Samarjit Das; Ping Wang; Saul R Powell; Dipak K Das
Journal:  Cell Physiol Biochem       Date:  2008-07-25

4.  Tocotrienol attenuates triglyceride accumulation in HepG2 cells and F344 rats.

Authors:  Gregor Carpentero Burdeos; Kiyotaka Nakagawa; Fumiko Kimura; Teruo Miyazawa
Journal:  Lipids       Date:  2012-02-26       Impact factor: 1.880

5.  A combination of palm oil tocotrienols and citrus peel polymethoxylated flavones does not influence elevated LDL cholesterol and high-sensitivity C-reactive protein levels.

Authors:  J P Schuchardt; S Heine; A Hahn
Journal:  Eur J Clin Nutr       Date:  2015-04-01       Impact factor: 4.016

6.  Dose-response impact of various tocotrienols on serum lipid parameters in 5-week-old female chickens.

Authors:  Suzanne G Yu; Ann M Thomas; Abdul Gapor; Barrie Tan; Nilofer Qureshi; Asaf A Qureshi
Journal:  Lipids       Date:  2006-05       Impact factor: 1.880

7.  Comparative effects of palm vitamin E and alpha-tocopherol on healing and wound tissue antioxidant enzyme levels in diabetic rats.

Authors:  M Musalmah; M Y Nizrana; A H Fairuz; A H NoorAini; A L Azian; M T Gapor; W Z Wan Ngah
Journal:  Lipids       Date:  2005-06       Impact factor: 1.880

8.  γ-Tocotrienol Inhibits TGF-β1-Induced Contractile Phenotype Expression of Human Airway Smooth Muscle Cells.

Authors:  Takehito Fukushima; Akira Yamasaki; Tomoya Harada; Hiroki Chikumi; Masanari Watanabe; Ryota Okazaki; Miki Takata; Yasuyuki Hasegawa; Jun Kurai; Masaaki Yanai; Akihiro Yamamoto; Yuriko Sueda; Andrew J Halayko; Eiji Shimizu
Journal:  Yonago Acta Med       Date:  2017-03-09       Impact factor: 1.641

9.  Vitamin E delta-tocotrienol levels in tumor and pancreatic tissue of mice after oral administration.

Authors:  Kazim Husain; Rony A Francois; Sean Z Hutchinson; Anthony M Neuger; Richard Lush; Domenico Coppola; Said Sebti; Mokenge P Malafa
Journal:  Pharmacology       Date:  2009-01-13       Impact factor: 2.547

10.  Enhanced antiproliferative and apoptotic response to combined treatment of gamma-tocotrienol with erlotinib or gefitinib in mammary tumor cells.

Authors:  Sunitha V Bachawal; Vikram B Wali; Paul W Sylvester
Journal:  BMC Cancer       Date:  2010-03-08       Impact factor: 4.430

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