• Refine Query
  • Source
  • Publication year
  • to
  • Language
  • 84
  • 18
  • 16
  • 16
  • 16
  • 16
  • 16
  • 16
  • 3
  • 3
  • 3
  • 2
  • 2
  • 2
  • 1
  • Tagged with
  • 147
  • 39
  • 30
  • 29
  • 29
  • 23
  • 21
  • 19
  • 19
  • 15
  • 14
  • 12
  • 12
  • 11
  • 11
  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
51

Effects of plant sterols and exercise training on apolipoprotein A and B, adiponectin, growth hormone and ghrelin in hypercholesterolemic sedentary adults

Collins, Melissa. January 2006 (has links)
Plant sterols (PS) lower total cholesterol (TC), low density lipoprotein cholesterol (LDL-C), and inflammatory markers, and decrease risk of atherosclerotic cardiovascular disease (CVD). Exercise increases high density lipoprotein cholesterol (HDL-C) levels and decreases triglycerides (TG) and inflammation, also reducing the risk of CVD. The study objective was to investigate the combined effects of PS and exercise on apolipoproteins (apo) A and B, adiponectin, growth hormone (GH) and ghrelin, in context of previously obtained lipid data. In an 8-wk, placebo-controlled, parallel-arm clinical trial, 84 subjects were randomly assigned to: (1) combination of PS and exercise, (2) exercise, (3) PS, or (4) control group. PS increased (P=0.04) adiponectin values by 15%. ApoA was associated with HDL and apoB with LDL values at baseline. ApoA %change was correlated to HDL %change in the exercise group. ApoB, GH and ghrelin were unchanged. The capability of PS to increase adiponectin values reinforce their role in preventing inflammation, atherosclerosis, and CVD.
52

Steroids and reproduction of the female Asterias rubens L.

Schoenmakers, Hendrik Josephus Nicolaas, January 1979 (has links)
Proefschrift--Rijksuniversiteit te Utrecht. / Includes bibliographical references.
53

The effect of fatty acid composition of plant sterol esters on blood lipid profiles and plasma plant sterol levels in hypercholesterolemic subjects /

Chan, Yen-Ming, 1980- January 2006 (has links)
No description available.
54

Effects of plant sterols and exercise training on apolipoprotein A and B, adiponectin, growth hormone and ghrelin in hypercholesterolemic sedentary adults

Collins, Melissa. January 2006 (has links)
No description available.
55

Biomarkers of biogeochemical carbon cycling at three aquifer sites in Bangladesh / Biomarkers in three Bangladesh aquifer sites

San Pedro, Reisa Joy January 2019 (has links)
The role of aquifer microorganisms in controlling arsenic contamination of Bangladesh aquifers via oxidation of organic carbon coupled with reduction of sedimentary iron oxyhydroxides and concomitant arsenic dissolution is generally accepted. What remains to be ascertained is the in situ biogeochemical mechanisms of cycling different carbon sources and directly relating indigenous microbiota to arsenic release. Using biomarker fingerprint approaches, this dissertation expanded the presently growing research in the biogeochemical carbon cycling controlling arsenic contamination in Bangladesh aquifers. Comprehensive profiles of microbial cell membrane components (PLFA and sterols) at three different aquifers tested the regional distribution of aquifer microbial community abundance, structure, and organic input potential across Araihazar. The highly variable bulk viable microbial biomass observed across these three sites confer both regional-scale and localized heterogeneous distributions of in-aquifer microbial communities which control carbon cycling in the aquifer. The lack of correlation between PLFA biomarkers and dissolved arsenic challenges the assumption that greater extent of microbial community metabolism results in an increase in arsenic in groundwater. Natural abundance radiocarbon isotope Δ14C analysis of cell membrane PLFA and available carbon pools (SOC, DOC, DIC) confirmed that young organic carbon substrates are being cycled at two of the three sites investigated here. This corroborates previous reports at nearby sites (Site B and F) thereby contributing to a well-constrained carbon source which actively support microbial metabolism over a regional scale. Sterol biomarker distributions were characterized to determine potential sources of organic input into the aquifer. In particular, the importance of raw human and/or animal sewage waste as a source of labile carbon was assessed by measuring the faecal biomarker Coprostanol and comparing its abundance to other sources of biogenic sterols using sewage input proxies (Sewage Contamination Index, Coprostanol/Cholesterol ratio). This was motivated by previous findings which correlated sewage contamination with dissolved arsenic at depth at nearby sites. While sewage contamination was low in the shallow aquifers at these sites, it is more likely that plant organic matter supported the elevated microbial abundance at shallow depths. On the other hand, evidence presented in this project suggests that sewage contamination intrudes into deeper aquifers (e.g. buried Pleistocene) and contributes to the vulnerability of previous pristine aquifers to future arsenic contamination. / Thesis / Master of Science (MSc)
56

Efficacy of plant sterol treatment in individuals with high or low baseline levels of circulating plasma plant sterols

Houweling, Adrielle H. January 2006 (has links)
No description available.
57

Effect of plant sterol supplementation and endurance training on cardiovascular disease risk parameters and cholesterol kinetics in previously sedentary hypercholesterolemic adults

Varady, Kristina A. January 2006 (has links)
No description available.
58

Influence of phytosterols versus phytostanols on plasma lipid levels and cholesterol metabolism in hypercholesterolemic humans

Vanstone, Catherine A. January 2001 (has links)
No description available.
59

The effects of formulation and dosing frequency of plant sterols on plasma lipid profiles and cholesterol kinetics parameters in hypercholesterolemic subjects /

AbuMweis, Suhad Sameer January 2007 (has links)
No description available.
60

New polyhydroxy sterols from the marine sponge Callyspongia fibrosa (Ridley and Dendly).

Rao, T.S.P., Sarma, N.S., Murthy, Y.L.N., Kantamreddi, Venkata Siva Satya Narayana, Wright, Colin W., Parameswaran, P.S. January 2010 (has links)
No / Four new polyhydroxylated sterols are isolated from Marine sponge Callyspongia fibrosa collected from the Gulf of Mannar, western Bay of Bengal (India). The structural assignment is based on 1H and 13C NMR spectra. All sterols are based on the known 24S-24-methyl cholesterol 1 which is also isolated, and contain 3b,6b-dihydroxy system and 25-O-acetate as common features (except in the case of sterol 6 that has a D25 in the place of 25-OAc). Additional OH substitution is also present at 5a in 4a and at 8b in 5. A further 12b-OH is present in 6 and 7. The hydroxylation pattern is so far known only in coral sterols but is without a precedent in sponge sterols. The major steroid 4a showed antimalarial activity against Plasmodium falciparum on the chloroquine-resistant stain better than on the chloroquine-sensitive strain.

Page generated in 0.053 seconds