scholarly journals EFFECTS OF DIETARY ADENINE ON GROWTH, LIPID SECRETION, AND LIVER LIPID CONTENT

2010 ◽  
Vol 10 (2) ◽  
pp. 251-255
Author(s):  
Yohanes Buang

The effects of dietary adenine on growth, lipid secretion, and liver lipid contents were studied. Rats were paired-fed 0.25 % adenine diet or a diet without adenine for 10 days. The final body weight and relative liver weight were recorded. Serum lipid profiles were measured using enzyme assay kits. Lipids of liver tissues were extracted and the lipid contents were determined. A peach of liver was prepared to determine the activities of fatty acid synthase (FAS) and fatty acid β-oxidation. The results showed that animals fed an adenine diet reduced slightly body weight and relative liver weight and promoted serum triglyceride (TG), phospholipids (PL), total cholesterol, and high density lipoprotein concentrations. Their promotions were approximately by 74%, 20%, 27%, and 27%, respectively. The liver PL content increased significantly whereas the promotions of liver TG and cholesterol failed to reach significant level. Furthermore, the FAS activity slightly stimulated, but fatty acid β-oxidation significantly decreased. In conclusion: dietary adenine suppressed slightly growth of body weight and relative liver weight but promoted secretion of lipid compounds from liver tissue into extra-hepatic and liver PL content. The enzyme activity of lipogenic was slightly stimulated whereas the lipolytic was significantly inhibited.   Keywords: adenine, serum lipid, triglyceride, high density lipoprotein, cholesterol

2020 ◽  
Vol 4 (Supplement_2) ◽  
pp. 445-445
Author(s):  
Modupeola Oguntoye ◽  
Olufunke Ezekiel

Abstract Objectives There is considerable interest in the development of high quality food products and dietary supplements that help in weight management. Drug intervention could have a negative side effect. Consumption of probiotics such as Lactobacillus rhamnosus GG cells through food products could offer a positive approach to weight management. Thus, probiotic beverages could serve as a healthy alternative in weight management. The objective of this study is to determine the effect of probiotic beverage such as provitamin A cassava hydrolysate carrying Lactobacillus rhamnosus GG in weight management. Methods Provitamin A cassava hydrolysate was inoculated with free (PHF) or alginate-encapsulated (PHE) Lactobacillus rhamnosus GG (LGG) cells in doses 1, 2 or 4 × 1010 CFU/ml, and administered orally to adult Wistar rats (120–150 g, n = 40 males, 8 groups). All rats were dosed orally once daily for 4 weeks, recording weekly body weight changes as percentage change, and compared against Control (distilled water). Serum lipid profile (total cholesterol, triglycerides and high density lipoprotein) were determined after sacrificing the rats. Data were analyzed using descriptive statistics and ANOVA at α0.05. Results The body weight gain in control rats was significantly higher (α0.05) by the end of the 4th week (40.00%) than PHF or PHE groups at doses 1, 2 or 4 × 1010 CFU/ml (34.59, 24.38 and 8.04%, or 30.34, 23.49 and 18.24% respectively) which reduced with increasing doses. Total cholesterol, triglycerides and high density lipoprotein were higher in control rats (65.40, 56.60 and 29.48 mg/dL respectively) than in PHF or PHE groups at dose 4 × 1010 CFU/ml (54.60, 44.40 and 27.48 mg/dL, and 62.40, 46.60 and 23.12 mg/dL respectively). Conclusions Provitamin A cassava hydrolysate with L. rhamnosus GG was able to induce a transient weight reduction in rats, owing to its potential in reducing serum cholesterol and exerting anti-obesity effect. Thus it could be consumed as a beverage targeting weight management. Funding Sources Self.


2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Qiu-fang Jia ◽  
Han-xue Yang ◽  
Nan-nan Zhuang ◽  
Xu-yuan Yin ◽  
Zhen-hua Zhu ◽  
...  

AbstractLipid profile (total cholesterol and lipoprotein fractions) has been found to correlate with depression and cognitive impairment across the lifespan. However, the role of lipid levels in self-rated depressive state and cognitive impairment remains unclear. In this study, we examined the relationship between lipid profile (total cholesterol, triglycerides, high-density lipoprotein cholesterol and low-density lipoprotein cholesterol) and cognition in adults with and without self-rated depression. Four hundred and thirty-eight healthy participants completed the Repeatable Battery for the Assessment of Neuropsychological Status (RBANS), the Self-Rating Depression Scale (SDS), and a serum lipoprotein test. Using multivariate ANOVA, partial correlation and network analysis, a network linking lipoprotein profile, depressive state and cognition was constructed. A significant difference in serum lipid profile between the high and low depressive groups was detected. Depressive state had a strong negative correlation with cognitive performance. Of the lipid profile, only high-density lipoprotein was positively correlated with depressive symptom severity, whereas the other three indices showed negative correlation with both depressive state and cognitive performance. Our results suggest that serum lipid profile may be directly linked to self-rated depression and cognitive performance. Further studies recruiting larger clinical samples are needed to elucidate the specific effect of lipoprotein on cognitive impairment in mood disorder.


2021 ◽  
Author(s):  
Bin Zhu ◽  
Dan Wu ◽  
Yuanyuan Yang ◽  
Pingli Yu ◽  
Haobo Huang ◽  
...  

Abstract Purpose The aim of the study was to evaluate the prognostic value of free fatty acid (FFA) and high-density lipoprotein cholesterol (HDL-C) in predicting colorectal neuroendocrine tumours (NETs). Methods One hundred patients with pathologically diagnosed colorectal NETs in 2011-2017 were enrolled, and the levels of FFA, HDL-C, low-density lipoproteincholesterol (LDL-C), triglycerides (TGs), cholesterol (CHOL), apolipoprotein A1 (ApoA1) and apolipoprotein B (ApoB) between colorectal NET patients and healthy controls matched by age and sex were compared. In addition, the association of clinicopathological characteristics and follow-up data with FFA and HDL-C was analysed. Results FFA was overexpressed (0.55±0.23 vs. 0.48±0.11, P= 0.006) and HDL-C was underexpressed (1.31±0.41 vs. 1.41±0.29, P=0.046) in colorectal NETs. FFA ≥0.52 mmol/L predicted lymph node metastasis (LNM) (χ2 = 5.964, P=0.015), and HDL-C ≤1.0 mmol/L predicted tumour size ≥2 cm (χ2 = 5.647, P=0.017). No significant association was found between FFA and tumour size (P=0.142) or HDL-C and LNM (P=0.443). FFA ≥0.52 mmol/L (χ2 = 6.016, P=0.014) and HDL-C ≤1.0 mmol/L predicted worse overall survival (OS) (χ2 = 5.488, P=0.019). FFA ≥0.52 mmol/L in combination with HDL-C ≤1.0 mmol/L predicted an even worse prognosis in terms of OS (χ2 = 4.818, P=0.028). Conclusion FFA ≥0.52 mmol/L and HDL-C ≤1.0 mmol/L were promising cut-off values in predicting LNM, tumour size and worse OS in colorectal NETs.


1981 ◽  
Vol 98 (2) ◽  
pp. 246-251 ◽  
Author(s):  
Thomas Rådberg ◽  
Anders Gustafson ◽  
Asbjörn Skryten ◽  
Kirsten Karlsson

Abstract. Thirtyeight women with insulin-dependent diabetes were randomly allocated to contraception with either a progestogen only (Lynestrenol 0.5 mg daily) (LYN), a combined oral contraceptive (OC) (Ethinyl oestradiol 50 μg + Lynestrenol 2.5 mg) (EE + LYN) or a non-hormonal intrauterine device (IUD). Diabetes control (i.e. insulin dosage, blood and urinary glucose and body weight) and the lipid concentration in serum and in high density lipoprotein (HDL) were assessed before and during six months use of the respective contraceptives. In the LYN group urinary glucose excretion increased 10% in spite of unchanged blood glucose, body weight and insulin requirement. All serum lipids decreased; triglycerides by 40% (P < 0.01), cholesterol by 13% (P < 0.01) and phospholipids by 12% (P = 0.06), without alteration of HDL lipids. In the group using combined OC (EE + LYN) the insulin requirement increased by 7% (P < 0.01) without any change in body weight or blood and urinary glucose. Serum as well as HDL lipids remained unchanged. In the IUD group neither diabetes control nor serum or HDL lipids were altered. It is concluded that in insulin-dependent diabetics the progestogen (LYN) has little influence on diabetes control but has a marked, though probably not adverse, effect on lipid metabolism. The combined OC (EE + LYN) may impair glucose homeostasis slightly but has little influence on serum or HDL lipids. These findings seem to differ from those obtained in non-diabetics during administration of contraceptive steroids and these differences suggest that absence of endogenous insulin production enhances the effects of progestogen and reduces the effects of synthetic oestrogens on lipid metabolism.


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