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Search Results: 1 - 10 of 1002 matches for " lipids "
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Aerobic exercise program on blood lipids in women between 40 and 55 years old  [PDF]
Judith M. Rodríguez-Villalobos, María de Jesús Mu?oz-Daw, Rosa P. Hernández, Martha Ornelas
Health (Health) , 2013, DOI: 10.4236/health.2013.58167

Objective: Evaluate the effect of a physical activity program on the blood lipid profile in women between 40 and 55 years old. Methods: 7 female participants from the city of Chihuahua, Chihuahua, Mexico, on a program of moderateintensity physical activity lasting 4 months, evaluated before and after the implementation of the program in the variables of total cholesterol, triglycerides, LDL and HDL, as well as the atherogenic index and cardiovascular risk. Data were analyzed with Student t test for related samples with a significance level of 0.05. Results: Total cholesterol levels and LDL in samples collected after physical exercise program decreased significantly compared to those collected before the implementation of the exercise program, while statistically, HDL and triglycerides did not show significant changes. The atherogenic index and cardiovascular risk showed positive trends, thus favoring that moderate intensity aerobic exercise decreased cardiovascular risk in women reaching the perimenopause period.

Identification and Characterization of the Lipid Transport System in the Tarantula Grammostola rosea  [PDF]
Aldana Laino, Monica Cunningham, Gustavo Suárez, Carlos Fernando Garcia
Open Journal of Animal Sciences (OJAS) , 2015, DOI: 10.4236/ojas.2015.51002
Abstract: Lipids due to its hydrophobic nature are transported in the hemolymph mainly by lipoproteic fractions. In the present work we studied the lipoproteic fractions present in the hemolymph of the spider Grammostola rosea. Through ultracentrifugation two lipoproteic fractions are isolated, one of high density named Gr-HDL (δ = 1.13 - 1.15 g/ml) and the other of very high density called Gr-VHDL (δ = 1.24 - 1.27 g/ml) Gr-VHDL in hemolymph is majority in relation to Gr-HDL. In this sense Gr-VHDL fraction has 98.6% of hemolymphatic proteins, and 89.3% of lipids presents in the hemolymph. Both lipoproteic fractions possess phospholipids such as majority lipids (phosphatidylcholine and phosphatidylethanolamine) and 18:1, 16:0, 18:2 and 18:0 as the major fatty acids. In order to confirm the role played by lipoproteic fractions in vitro assays with different 14C-lipid were performed. It was observed that Gr-VHDL takes up mainly free fatty acids and triacylglycerols unlike that observed for Gr-HDL in relation to phosphatidylcholine. Through electrophoresis it was observed that Gr-VHDL has three proteins: a predominant band of 68 kDa and two others of 99 and 121 kDa. Gr-HDL displayed a predominant band of 93 kDa, and other minority of 249 kDa. In conclusion, this study reports lipid characterization of the lipoproteic fractions present in the hemolymph of the tarantula, G. rosea. The role of each lipoproteic fraction in relation to lipid uptake is sustained by in vitro assays. Similarities and differences are found when it is compared to lipoproteins of only the three species of spiders studied.
Microalgae Lipid and Biodiesel Production: A Brazilian Challenge  [PDF]
Carolina T. Miranda, Roberta F. Pinto, Daniel V. N. de Lima, Carolina V. Viegas, Simone M. da Costa, Sandra M. F. O. Azevedo
American Journal of Plant Sciences (AJPS) , 2015, DOI: 10.4236/ajps.2015.615254
Abstract: Global increases in atmospheric CO2 and climate change are drawing considerable attention to identify sources of energy with lower environmental impact than those currently in use. Biodiesel production from microalgae lipids can, in the future, occupy a prominent place in energy generation because it represents a sustainable alternative to petroleum-based fuels. Several species of microalgae produce large amounts of lipids per biomass unit. Triacylglycerol is the fatty acid used for biodiesel production and the main source of energy reserves in microalgae. The current literature indicates that nutrient limitations can lead to triacylglycerol accumulation in different species of microalgae. Further efforts in microalgae screening for biodiesel production are needed to discover a native microalgae that will be feasible for biodiesel production in terms of biomass productivity and oil. This revision focuses in the biotechnological potential and viability of biodiesel production from microalgae. Brazil is located in a tropical region with high light rates and adequate average temperatures for the growth of microalgae. The wide availability of bodies of water and land will allow the country to produce renewable energy from microalgae.
Diabetes and Hypertension in a Santhal Tribe in Bangladesh: A Population Based Study  [PDF]
M. Abu Sayeed, Parvin Akter Khanam, Muhammad Tofazzal Hussain, Mir Masudur Rhaman, Shurovi Sayeed, Tanjima Begum, M. Abu Hana Golam Morshed, Akhter Banu
Journal of Diabetes Mellitus (JDM) , 2014, DOI: 10.4236/jdm.2014.42020

BACKGROUND: Santhal (Santals) tribe is one of the oldest and largest aboriginal pre Aryan populations in India and Bangladesh. There was no published report on the prevalence of diabetes and hypertension. OBJECTIVE: To determine the prevalence of type 2 diabetes mellitus (T2DM) and hypertension in a Santhal tribe of Bangladesh. RESEARCH DESIGN AND METHODS: Eight villages inhabited largely by Santhal tribe were purposively selected. All Santhals aged 20 years or more were considered eligible and enlisted for the study. Investigations included socio-demographic information (age, sex, education, income), clinical history (general illness), anthropometry (height, weight, waist-girth, hip-girth) and blood pressure. Body mass index (BMI) and waist-to-hip ration (WHR) were calculated. Blood samples were collected for fasting plasma glucose (FPG), total cholesterol (Chol), triglycerides (TG), urea and creatinine. RESULTS: Thirteen hundred eligible Santhals were enlisted. Of them, 1049 (80.7%) participated in the study. The male and female participants were 40% and 60%, respectively. The prevalence of T2DM was 0.6% and hyperglycemia (FPG > 5.5 mmol/l) was 10.0%. The prevalence of systolic hypertension (sHTN) was 24.4% and diastolic hypertension (dHTN) was 24.6%. Compared with the males the females had significantly higher prevalence of sHTN (OR, 2.20 with 95% CI, 1.62 - 3.02) and dHTN (OR, 1.81 with CI, 1.34 - 2.0); whereas, the prevalence of T2DM and IFG did not differ. Regarding obesity 45% of the participants had BMI < 18.5 and only 5% had BMI > 23.1. Logistic regression estimated that the increasing age, female sex, higher FPG (>5.5 mmol/l) and higher Chol (>160 mg/dl) had independent risk for sHTN and dHTN. CONCLUSIONS: The Santhals had less risk for diabetes but increased risk for hypertension. The Santhal females had excess risk of hypertension. Advancing age, female sex, hyperglycemia and hypercholesterolemia were found to have significant risk for hypertension. Obesity had no effect on diabetes or hypertension. High dietary salt intake among Santhals might have contributed to the development of hypertension. Further study may confirm the study findings and to understand why this tribe is less susceptible to diabetes and more to hypertension.

Evaluation of BMI and Lipids Profile in Type 2 Diabetic Subjects with Low and Raised Levels of Thyroid Hormone in Calabar, Nigeria  [PDF]
C. E. J. Udiong, M. H. Etukudoh, I. K. Isong, E. F. Udoisa
Journal of Diabetes Mellitus (JDM) , 2015, DOI: 10.4236/jdm.2015.54034

Relationship between lipid levels and BMI was investigated in euthyroid, hyperthyroid, hypothyroid, general Type 2 diabetics, and non-diabetic control subjects. FT4, T4, T3 and TSH did not differ in obese and non-obese diabetics but were higher in diabetics than in non-diabetics (p = 0.015, 0.012, 0.0164 respectively). Levels of FT4 correlated with TC, LDL-C, VLDL-C, TG and HDL-C (r = 0.179, p = 0.034; r = 0.183, p = 0.033; r = 0.183 p = 0,033; r = 0.176, p = 0.037; r = -0.210, p = 0.023 respectively). T3 levels correlated with TC (r = 0.210: p = 0.023), LDL-C (r = 0.193: p = 0.025), and VLDL-C (r = 0.244: p = 0.003) levels in diabetic subjects. FT4 and T4 levels correlated with BMI only in the non-diabetic subjects (p = 0.022, 0.025) respectively. TC and LDL-C levels correlated positively with BMI in non-diabetics (r = 0.265,

Métodos de extra??o e qualidade da fra??o lipídica de matérias-primas de origem vegetal e animal
Brum, Aelson Aloir Santana;Arruda, Lia Ferraz de;Regitano-d′Arce, Marisa Aparecida Bismara;
Química Nova , 2009, DOI: 10.1590/S0100-40422009000400005
Abstract: methodologies of extraction of lipids from chicken breast and oats flakes were evaluated: soxhlet, folch et al., bligh & dyer and hara & radin. for chicken breast, the methods soxhlet, folch et al. and bligh & dyer presented the highest yields in total lipids. with oat flakes, the methods soxhlet and bligh & dyer presented higher yields than the hara & radin and folch et al. the soxhlet method affected the quality of the lipid fraction in both samples. extracted lipid components were separated by thin layer chromatography, the chloroform-methanol based was more efficient to extract the neutral and polar lipids.
Blood lipids may have influence on the emotional well-being in young men  [PDF]
Edyta Kramek, Sylwia Jastrzebska, Renata Walczak-Jedrzejowska, Katarzyna Marchlewska, Elzbieta Oszukowska, Anna Guminska, Krzysztof Kula, Jolanta Slowikowska-Hilczer
Health (Health) , 2010, DOI: 10.4236/health.2010.25066
Abstract: Anamnestic data on general health and medical conditions were achieved from 136 men (20-49 yrs). Beck Depression Inventory II (BDI-II) questionnaire was used to assess depressive symptomatology. Body weight, height, waist and hip circumference, arterial blood pressure were mea- sured. Serum levels of total cholesterol (TC), LDL cholesterol (LDL-C), HDL cholesterol (HDL-C), triglicerydes (TG), glucose, SHBG, total testosterone, DHEA-S and estradiol were determined. Calculated were body mass index (BMI), waist to hip ratio (WHR) and free testosterone index (FTI). In men aged 40-49 general health significantly got worse, BMI, WHR, blood pressure increased and mean serum levels of FTI, DHEA-S, estradiol decreased in comparison to younger men. Only in 40-49 age band BDI-II scoring was negatively related with FTI, however, in the whole group there were no significant correlations. Nevertheless, some symptoms of depression were negatively related with LDL-C or HDL-C and positively with TG. Similar relations were found among young men, but not in the middle-aged. Conclusions: Only blood lipids may have influence on emotional well-being in young healthy men. The decreased testosterone level becomes probably the main risk factor for the lower mood in middle-aged men. Atherosclerosis risk factors and general health worsen with the advancing age, but they have no significant effect on psychological situation.
Simple anthropometric measurements to predict dyslipidemias in Mexican school-age children: a cross-sectional study  [PDF]
Maria del Carmen Caama?o, Olga Patricia García, María del Rocío Arellano, Karina de la Torre-Carbot, Jorge L. Rosado
Open Journal of Preventive Medicine (OJPM) , 2011, DOI: 10.4236/ojpm.2011.13023
Abstract: Objective: The purpose of this study was to identify the best predictors of dyslipidemias in Mexican obese children using different anthropometric and body composition measurements. Methods: In an observational, cross-sectional study, 905 children from 5 schools were measured for weight, height, waist and hip circumference, and triceps and subscapular skinfolds. A fasting blood sample was taken from a random sub-sample of 306 children to determine lipid profile. Abnormal total cholesterol, LDL, HDL, triglycerides, total cholesterol to HDL ratio, and LDL to HDL ratio, were determined. Logistic regressions and ROC analysis were carried out to determine the best anthropometric predictors of these risk factors. Results: Prevalence of elevated total cholesterol, triglycerides and LDL cholesterol was 14%, 56% and 58%, respectively. In logistic regressions, BMI and triceps skinfold had the highest odds ratios to predict elevated total cholesterol (1.05, 95%CI: 0.97 - 1.14; 1.07, 1.01 - 1.13, respectively), triglycerides (1.19, 1.11 - 1.27; 1.12, 1.08 - 1.17, respectively), LDL cholesterol (1.11, 1.04 - 1.18; 1.09, 1.05 - 1.14, respectively), total cholesterol to HDL ratio (1.06, 1.00-1.14; 1.07,1.03-1.12, respectively) and LDL to HDL ratio risk (1.08,1.01-1.15; 1.07, 1.03-1.12, respectively). After BMI and triceps skinfold, subscapular skinfold also predicted dyslipidemias, except for low HDL; both skinfolds had a narrower odds ratio confidence interval than BMI. In ROC analysis, subscapular skinfold was the best predictor of elevated triglycerides with an AUC ≥ 0.7. Conclusion: Anthropometric measurements are not strongly associated with dyslipidemias in Mexican children. However, since triceps and subscapular skinfolds were better predictors than other anthropometry measures, they may be a simple way to predict dyslipidemias in Mexican children.
Effect of garlic powder on performance and lipid profile of broilers  [PDF]
Kamal Jamal Issa, J. M. Abo Omar
Open Journal of Animal Sciences (OJAS) , 2012, DOI: 10.4236/ojas.2012.22010
Abstract: This experiment was conducted to investigate the effect of feeding garlic powder (GP) on the performance, digestibility, digestive organs, carcass cuts and lipid profile of broilers. A total of 270 day-old Cobb-500 chicks were used in the experiment. Birds were partitioned into three experimental groups of 90 birds in each. Each treatment was composed of 6 replicates with 15 birds in each. The control group was fed with a commercial starter and finisher diet. The second and third groups were supplemented with GP at the rate of 0.2% and 0.4% respectively. In the last week of experiment, 18 birds from each experimental group (3 birds per replicate) were used in a metabolic trial. At the time of termination of the experiment, the same number of birds were killed for digestive organs and carcass components measurements. Blood samples from 3 birds per replicate were collected on 3rd, 5th and 6th week post feeding from wing vein for blood lipid profile determination. Total cholesterol (COL), triglycerides (TG), high density lipoprotein (HDL), low density lipoprotein (LDL) levels were determined. Results of this study showed that GP had no significant effects on broilers weight gain, feed intake (FI), feed conversion ratio (FCR), carcass cuts, visceral organs. However, GP decreased (P < 0.05) COL, TG, LDL and increased HDL levels compared to control birds. The dry matter (DM), crude protein (CP) and ether extract (EE) digestibility were improved by feeding GP. It can be concluded that GP could provide positive advantages in broilers performance.
Age and depot-specific adipokine responses to obesity in mice  [PDF]
Claudia Hantschel, Asja Wagener, Christina Neuschl, Armin O. Schmitt, Gudrun A. Brockmann
Health (Health) , 2012, DOI: 10.4236/health.2012.412A218

Leptin and adiponectin are the most abundant adipokines that regulate energy homeostasis. Here, we report the changes of leptin and adiponectin in response to age and their depot-specific expression in lean and genetically obese mice. Fat deposition patterns, adipokine levels and their adipose-tissue depot-specific expression patterns were examined in both sexes of lean and obese mice on two different diets at four and 20 weeks. In obese mice, body fat mass was higher than in lean mice and was increased with age. Leptin levels correlated with body fat mass and therefore increased with age. Leptin levels were correlated higher with the weight of subcutaneous than with the weight of reproductive adipose tissue. Likewise, leptin mRNA levels in subcutaneous adipose tissue corresponded well with serum leptin levels. Adiponectin levels did not differ significantly between the ages and did not correlate with body fat mass or with either of the adipose-tissue depots, although obese mice had lower adiponectin levels than lean mice. Nevertheless, serum adiponectin levels showed a pattern of changes that was similar to that of the adiponectin transcript amounts in the reproductive adipose tissue. Our results confirm that serum leptin levels are regulated by the body fat mass, predominantly by the subcutaneous adipose tissue mass. Furthermore, our data provide evidence that serum adiponectin levels are influenced by other factors than body fat mass alone.

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