Objective: The measurement of phase angles is an important monitoring parameter and supplementation with omega-3 could promote benefits by modulating the electrical potential of membranes and increasing body cell mass...Objective: The measurement of phase angles is an important monitoring parameter and supplementation with omega-3 could promote benefits by modulating the electrical potential of membranes and increasing body cell mass. This study aimed to evaluate the effectiveness of omega-3 fatty acid supplementation on the phase angle of people living with HIV/AIDS. Methods: In this study, 63 individuals of all genders who were undergoing outpatient follow-up and showed lipodystrophy due to highly active antiretroviral therapy were analyzed. Our sample consisted of two groups, one that received supplementation containing 2550 mg of omega-3/day (1080 mg of eicosapentaenoic acid and 720 mg of docosahexaenoic acid) for three months (n = 32) and another that underwent nutrition guidance (n = 31). Phase angle and body cell mass were assessed for both groups and compared at the beginning of research (T0) and after our intervention (T1) for each group separately. Results: Phase angle averaged 6.45° ± 1.06 SD. The comparison between T0 and T1 showed a significant increase in phase angle and body cell mass, whereas the guidance group showed a decrease in body cell mass at T1 in relation to T0, with a significant p-value. Variance in phase angle between moments showed significant values between T0 and T1 in the supplementation group for all genders. Conclusion: Omega-3 positively modulated patients phase angle and body cell mass, but we emphasize the need for other studies that can solidify knowledge about supplementation dosage and intervention time.展开更多
This is an essay focused on discussing parts of the current state of knowledge and research in the field of Omega 3, Inflammation and cardiovascular diseases prevention. For a long time, Omega 3 has been considered a ...This is an essay focused on discussing parts of the current state of knowledge and research in the field of Omega 3, Inflammation and cardiovascular diseases prevention. For a long time, Omega 3 has been considered a health-promoting and beneficial substance for well-being and longevity. New studies have shed new light on the role of omega 3 in cardiovascular diseases prevention and anti-inflammatory effects.展开更多
Diets these days contain more fats. High fat diet (HFD) is a model of unhealthy eating in experimental animals. It is known to induce inflammatory responses and oxidative stress. Cannabidiol (CBD), the non-psychoactiv...Diets these days contain more fats. High fat diet (HFD) is a model of unhealthy eating in experimental animals. It is known to induce inflammatory responses and oxidative stress. Cannabidiol (CBD), the non-psychoactive component of Cannbis sativa has been legalized for medicinal use in many countries of the world. Omega 3 fatty acid, commonly found in fish oil is medicinal and necessary for brain development. The antioxidant and neuroprotective functions of CBD and omega 3 have made them relevant in many researches. In this study, 45 mice were used and divided into three groups of 15 animals each: Group 1 (normal feed and water ad libidum);Group 2 (HFD ad libidum);Group 3 (HFD + CBD + Omega 3) for 16 weeks. Thereafter, five animals from each group were selected and their frontal lobes were harvested for histological analyses using H and E staining. The remaining mice were allowed to feed on normal diet and observed till death. At the end, HFD significantly reduced life span (57.4 ± 0.3) when compared to control (78.9 ± 1.6) and HFD + CBD + omega 3 group (74.5 ± 0.8) at p < 0.05. HFD also caused significant brain ischemic damage, neuronophagia and significant perivascular oedema. CBD + Omega 3 induced significant astrocytosis compared to control and HFD group. The immune stimulation by the CBD + Omega 3 could be responsible for tissue survival and longevity by protection from inflammatory and oxidative injuries. Ischaemic tissue death could have been prevented by amelioration of artheroma formation due to HFD. Further studies will be required to ascertain other possible mechanisms behind these findings.展开更多
Chronic intake of High Fat Diet (HFD) has the potential of causing a number of metabolic disorders. It is also theorized to be involved in perturbation of gut microbiota. Cannabididol (CBD) and omega 3 are known to po...Chronic intake of High Fat Diet (HFD) has the potential of causing a number of metabolic disorders. It is also theorized to be involved in perturbation of gut microbiota. Cannabididol (CBD) and omega 3 are known to possess a number of medicinal usefulness. Their combined use in experimental interventions is quite limited. A total of 15 mice were used for this research divided into three groups of five animals each. Group 1 was administered water and normal chow ad libidum. Group 2 had HFD and water ad libidum. Group 3 had HFD plus CBD (10 mg/kg) and omega 3 (200 mg/kg) all for a total of 12 weeks. They were tested on the elevated plus maze (EPM) and average entry time into the closed arm was recorded. They were also tested on the Y-maze and spontaneous alternations were measured. Thereafter animals were sacrificed and faecal content in the caecum was collected in sterile bottles and cultured for E. coli count. It was found that HFD group at p value E. coli count (2.4 × 10<sup>6</sup> ± 4.5) compared to group 1 (1.4 × 10<sup>6</sup> ± 5.6) and group 3 (1.42 × 10<sup>6</sup> ± 6.3). The findings revealed that HFD enhanced gut E. coli overgrowth which was reduced by CBD and Omega 3. The memory impairment and anxiety induction by HFD was also significantly ameliorated by CBD and omega 3. E. coli known to be implicated in dementia induction was suppressed by the interventions. Possible mechanisms proposed are actions of CBD and omega 3 on CB1, TRVP and 5HT receptors in reducing anxiety and their antioxidant/anti-inflammatory actions in mitigating the neuro-inflammatory effect of HFD and immune hyperstimulation of E. coli via the gutbrain-axis.展开更多
Anti-arrhythmic properties of n-3 polyunsaturated fatty acids, at least in part mediated by anti-oxidant, anti-inflammatory and anti-fibrotic power, have been widely proved. Effect of fish oil on atrial fibrillation, ...Anti-arrhythmic properties of n-3 polyunsaturated fatty acids, at least in part mediated by anti-oxidant, anti-inflammatory and anti-fibrotic power, have been widely proved. Effect of fish oil on atrial fibrillation, both in primary and in secondary prevention and after cardiac surgery, are controversial, mostly due to lack of homogeneity between studies but also due to individual variability in response to fatty acids administration. Inclusion of measurement of incorporation of fish oil into cell membranes, appears to be essential in future studies, to assess their antiarrhythmic effect.展开更多
Long chain polyunsaturated fatty acids are essential macronutrients that have several benefits which have been described for children’s health. Omega 3 LCPUFA metabolism has been reported to be altered in under-nouri...Long chain polyunsaturated fatty acids are essential macronutrients that have several benefits which have been described for children’s health. Omega 3 LCPUFA metabolism has been reported to be altered in under-nourished and in HIV infected children. Therefore, we describe Eicosapentaenoic acid, Docosapentaenoic acid and Docosahexaenoic acid levels of HIV infected, HIV exposed uninfected and HIV unexposed uninfected school aged children from a low income country with a high burden of HIV infection and under-nutrition. This cross-sectional study recruited children 7 to 10 years old. Capillary blood was collected on filter paper and whole blood fatty acid analysis done using automated gas liquid chromatography. Kruskal Wallis and Median tests were used to compare the distribution and medians of the Omega 3 LCPUFA among the children according to HIV status, gender, age and nutritional status. A total of 318 children were recruited with 21 (7%) being HIV infected and 116 (37%) being HIV exposed uninfected. Chronic malnutrition was present in 12% of the children. The omega 3 fatty acids were expressed as percent weight of total fatty acids. The medians (interquartile range) for EPA, DPA and DHA for all the children were 0.19 (0.09), 0.79 (0.19) and 2.14 (0.54) %wt/wt respectively. EPA, DPA and DHA levels were not associated with the HIV status of the children. EPA levels were much lower in the 7-year-age group compared with the 8 and 9 - 10-year-age groups. Further studies assessing LCPUFA levels that include larger sample size, children from both urban and rural areas are recommended as this may assist in clearly defining the association of LCPUFA with HIV status in children from low income countries with high burden of under-nutrition.展开更多
Omega 3 fatty acids have been shown to support reproductive performance in dairy cows, but large amounts are needed due to ruminal biohydrogenation of fatty acids. Three long-term large herd feeding trials, two with h...Omega 3 fatty acids have been shown to support reproductive performance in dairy cows, but large amounts are needed due to ruminal biohydrogenation of fatty acids. Three long-term large herd feeding trials, two with heifers and one with mature cows, were conducted to evaluate the effects of adding a rumen protected fish oil supplement on reproduction. In all trials, there were over 1000 animals eligible to be bred/treatment. Cows received a ration with 40 g of a rumen protected fish oil supplement (Salmate®?the Ballard Group, Cincinnati Ohio) during the test periods, while controls received no supplementation. The additive was provided to the test cows from the onset of lactation until 90 ± 5 days in milk. Cows entering the pen on or after the first day of the study were included in the dataset. Individual cow records were compiled by Dairy Herd Improvement Association (National DHIA, Verona WI USA) were compared to records from the same time period the year prior. Results were compared using ANOVA for single mean variables and Fisher’s exact test for proportional data. In trials 1 and 2 involving heifers, pregnancy rates were improved (22.4% vs 14.8% in trial 1 and 22.0 vs 17.8% in trial 2, (p < 0.05)). In both cases the improved pregnancy rate could be attributed to higher numbers of cattle bred that became pregnant (P < 0.05), resulting in fewer services/conception (P < 0.05). Early embryonic abortion rates were under 2% in trial 1 and did not differ by treatment. Embryonic abortions rates were 9.2% for the control group as compared to 5.6% for the test group in trial 2, but failed to reach significance. There were no differences in pregnancy rates for the mature cows evaluated in trial 3 (P > 0.05). However, early embryonic abortion rates were 16.8 during the control period, as compared to 4.7% during the test feeding period. The rumen protected omega 3 fatty acid supplement was found to be of benefit to reproductive performance in dairy cows. The supplement may improve the percentage of cattle bred that become pregnant in herds where this metric is low. Early term abortions may be lowered, particularly in herds where this is high.展开更多
Two experiments were conducted to assess the value of hydrophobic starch as a method to encapsulate a supplement consisting of refined fish oil intended for use as a feed supplement for ruminant animals. In Study 1, t...Two experiments were conducted to assess the value of hydrophobic starch as a method to encapsulate a supplement consisting of refined fish oil intended for use as a feed supplement for ruminant animals. In Study 1, the product was incubated in vitro for 24 hours. The entire media was analyzed to determine fatty acid composition. In Study 2, the test material was incubated for 0, 2, 4, 6, 8, 10, 12 and 24 hours in order to determine rate of loss of dry matter, as well as the fatty acid profile of the dry matter remaining at 24 hours. Results from Study 1 indicated that 61.1 % of the eicosapentaenoic acid (C20:5) and 75.3% docosahexaenoic acid (C22:6) were still intact after the 24 hour incubation period. In Study 2, 39.1% of the test material was solubilized in the 24 hour period. However, the losses in C20:5 and C22:6 fatty acids were less (25.32% and 27.90% respectively) indicating that the majority of the test product was protected against biohydrogenation. It was concluded that hydrophobic starch can be used to ruminally protected fish oil and to deliver C20:5 and C22:6 fatty acids past the rumen.展开更多
文摘Objective: The measurement of phase angles is an important monitoring parameter and supplementation with omega-3 could promote benefits by modulating the electrical potential of membranes and increasing body cell mass. This study aimed to evaluate the effectiveness of omega-3 fatty acid supplementation on the phase angle of people living with HIV/AIDS. Methods: In this study, 63 individuals of all genders who were undergoing outpatient follow-up and showed lipodystrophy due to highly active antiretroviral therapy were analyzed. Our sample consisted of two groups, one that received supplementation containing 2550 mg of omega-3/day (1080 mg of eicosapentaenoic acid and 720 mg of docosahexaenoic acid) for three months (n = 32) and another that underwent nutrition guidance (n = 31). Phase angle and body cell mass were assessed for both groups and compared at the beginning of research (T0) and after our intervention (T1) for each group separately. Results: Phase angle averaged 6.45° ± 1.06 SD. The comparison between T0 and T1 showed a significant increase in phase angle and body cell mass, whereas the guidance group showed a decrease in body cell mass at T1 in relation to T0, with a significant p-value. Variance in phase angle between moments showed significant values between T0 and T1 in the supplementation group for all genders. Conclusion: Omega-3 positively modulated patients phase angle and body cell mass, but we emphasize the need for other studies that can solidify knowledge about supplementation dosage and intervention time.
文摘This is an essay focused on discussing parts of the current state of knowledge and research in the field of Omega 3, Inflammation and cardiovascular diseases prevention. For a long time, Omega 3 has been considered a health-promoting and beneficial substance for well-being and longevity. New studies have shed new light on the role of omega 3 in cardiovascular diseases prevention and anti-inflammatory effects.
文摘Diets these days contain more fats. High fat diet (HFD) is a model of unhealthy eating in experimental animals. It is known to induce inflammatory responses and oxidative stress. Cannabidiol (CBD), the non-psychoactive component of Cannbis sativa has been legalized for medicinal use in many countries of the world. Omega 3 fatty acid, commonly found in fish oil is medicinal and necessary for brain development. The antioxidant and neuroprotective functions of CBD and omega 3 have made them relevant in many researches. In this study, 45 mice were used and divided into three groups of 15 animals each: Group 1 (normal feed and water ad libidum);Group 2 (HFD ad libidum);Group 3 (HFD + CBD + Omega 3) for 16 weeks. Thereafter, five animals from each group were selected and their frontal lobes were harvested for histological analyses using H and E staining. The remaining mice were allowed to feed on normal diet and observed till death. At the end, HFD significantly reduced life span (57.4 ± 0.3) when compared to control (78.9 ± 1.6) and HFD + CBD + omega 3 group (74.5 ± 0.8) at p < 0.05. HFD also caused significant brain ischemic damage, neuronophagia and significant perivascular oedema. CBD + Omega 3 induced significant astrocytosis compared to control and HFD group. The immune stimulation by the CBD + Omega 3 could be responsible for tissue survival and longevity by protection from inflammatory and oxidative injuries. Ischaemic tissue death could have been prevented by amelioration of artheroma formation due to HFD. Further studies will be required to ascertain other possible mechanisms behind these findings.
文摘Chronic intake of High Fat Diet (HFD) has the potential of causing a number of metabolic disorders. It is also theorized to be involved in perturbation of gut microbiota. Cannabididol (CBD) and omega 3 are known to possess a number of medicinal usefulness. Their combined use in experimental interventions is quite limited. A total of 15 mice were used for this research divided into three groups of five animals each. Group 1 was administered water and normal chow ad libidum. Group 2 had HFD and water ad libidum. Group 3 had HFD plus CBD (10 mg/kg) and omega 3 (200 mg/kg) all for a total of 12 weeks. They were tested on the elevated plus maze (EPM) and average entry time into the closed arm was recorded. They were also tested on the Y-maze and spontaneous alternations were measured. Thereafter animals were sacrificed and faecal content in the caecum was collected in sterile bottles and cultured for E. coli count. It was found that HFD group at p value E. coli count (2.4 × 10<sup>6</sup> ± 4.5) compared to group 1 (1.4 × 10<sup>6</sup> ± 5.6) and group 3 (1.42 × 10<sup>6</sup> ± 6.3). The findings revealed that HFD enhanced gut E. coli overgrowth which was reduced by CBD and Omega 3. The memory impairment and anxiety induction by HFD was also significantly ameliorated by CBD and omega 3. E. coli known to be implicated in dementia induction was suppressed by the interventions. Possible mechanisms proposed are actions of CBD and omega 3 on CB1, TRVP and 5HT receptors in reducing anxiety and their antioxidant/anti-inflammatory actions in mitigating the neuro-inflammatory effect of HFD and immune hyperstimulation of E. coli via the gutbrain-axis.
文摘Anti-arrhythmic properties of n-3 polyunsaturated fatty acids, at least in part mediated by anti-oxidant, anti-inflammatory and anti-fibrotic power, have been widely proved. Effect of fish oil on atrial fibrillation, both in primary and in secondary prevention and after cardiac surgery, are controversial, mostly due to lack of homogeneity between studies but also due to individual variability in response to fatty acids administration. Inclusion of measurement of incorporation of fish oil into cell membranes, appears to be essential in future studies, to assess their antiarrhythmic effect.
文摘Long chain polyunsaturated fatty acids are essential macronutrients that have several benefits which have been described for children’s health. Omega 3 LCPUFA metabolism has been reported to be altered in under-nourished and in HIV infected children. Therefore, we describe Eicosapentaenoic acid, Docosapentaenoic acid and Docosahexaenoic acid levels of HIV infected, HIV exposed uninfected and HIV unexposed uninfected school aged children from a low income country with a high burden of HIV infection and under-nutrition. This cross-sectional study recruited children 7 to 10 years old. Capillary blood was collected on filter paper and whole blood fatty acid analysis done using automated gas liquid chromatography. Kruskal Wallis and Median tests were used to compare the distribution and medians of the Omega 3 LCPUFA among the children according to HIV status, gender, age and nutritional status. A total of 318 children were recruited with 21 (7%) being HIV infected and 116 (37%) being HIV exposed uninfected. Chronic malnutrition was present in 12% of the children. The omega 3 fatty acids were expressed as percent weight of total fatty acids. The medians (interquartile range) for EPA, DPA and DHA for all the children were 0.19 (0.09), 0.79 (0.19) and 2.14 (0.54) %wt/wt respectively. EPA, DPA and DHA levels were not associated with the HIV status of the children. EPA levels were much lower in the 7-year-age group compared with the 8 and 9 - 10-year-age groups. Further studies assessing LCPUFA levels that include larger sample size, children from both urban and rural areas are recommended as this may assist in clearly defining the association of LCPUFA with HIV status in children from low income countries with high burden of under-nutrition.
文摘Omega 3 fatty acids have been shown to support reproductive performance in dairy cows, but large amounts are needed due to ruminal biohydrogenation of fatty acids. Three long-term large herd feeding trials, two with heifers and one with mature cows, were conducted to evaluate the effects of adding a rumen protected fish oil supplement on reproduction. In all trials, there were over 1000 animals eligible to be bred/treatment. Cows received a ration with 40 g of a rumen protected fish oil supplement (Salmate®?the Ballard Group, Cincinnati Ohio) during the test periods, while controls received no supplementation. The additive was provided to the test cows from the onset of lactation until 90 ± 5 days in milk. Cows entering the pen on or after the first day of the study were included in the dataset. Individual cow records were compiled by Dairy Herd Improvement Association (National DHIA, Verona WI USA) were compared to records from the same time period the year prior. Results were compared using ANOVA for single mean variables and Fisher’s exact test for proportional data. In trials 1 and 2 involving heifers, pregnancy rates were improved (22.4% vs 14.8% in trial 1 and 22.0 vs 17.8% in trial 2, (p < 0.05)). In both cases the improved pregnancy rate could be attributed to higher numbers of cattle bred that became pregnant (P < 0.05), resulting in fewer services/conception (P < 0.05). Early embryonic abortion rates were under 2% in trial 1 and did not differ by treatment. Embryonic abortions rates were 9.2% for the control group as compared to 5.6% for the test group in trial 2, but failed to reach significance. There were no differences in pregnancy rates for the mature cows evaluated in trial 3 (P > 0.05). However, early embryonic abortion rates were 16.8 during the control period, as compared to 4.7% during the test feeding period. The rumen protected omega 3 fatty acid supplement was found to be of benefit to reproductive performance in dairy cows. The supplement may improve the percentage of cattle bred that become pregnant in herds where this metric is low. Early term abortions may be lowered, particularly in herds where this is high.
文摘Two experiments were conducted to assess the value of hydrophobic starch as a method to encapsulate a supplement consisting of refined fish oil intended for use as a feed supplement for ruminant animals. In Study 1, the product was incubated in vitro for 24 hours. The entire media was analyzed to determine fatty acid composition. In Study 2, the test material was incubated for 0, 2, 4, 6, 8, 10, 12 and 24 hours in order to determine rate of loss of dry matter, as well as the fatty acid profile of the dry matter remaining at 24 hours. Results from Study 1 indicated that 61.1 % of the eicosapentaenoic acid (C20:5) and 75.3% docosahexaenoic acid (C22:6) were still intact after the 24 hour incubation period. In Study 2, 39.1% of the test material was solubilized in the 24 hour period. However, the losses in C20:5 and C22:6 fatty acids were less (25.32% and 27.90% respectively) indicating that the majority of the test product was protected against biohydrogenation. It was concluded that hydrophobic starch can be used to ruminally protected fish oil and to deliver C20:5 and C22:6 fatty acids past the rumen.
文摘目的建立近红外光谱法(near-infrared spectrometry,NIRS)快速检测鸡蛋中Omega-3多不饱和脂肪酸含量。方法共采集115份市售鸡蛋,将其蛋黄冻干处理后制成蛋黄粉,采用气相色谱法测得α-亚麻酸(α-linolenic acid,ALA)、二十碳五烯酸(eicosapentaenoic acid,EPA)和二十二碳六烯酸(docosahexaenoic acid,DHA)的含量,并用近红外光谱仪进行光谱扫描。基于偏最小二乘法(partial least-square method,PLS)用20种方法对光谱图进行预处理,建立ALA、EPA和DHA的近红外定量检测模型,以校正集决定系数(coefficient of determination of calibration set,rc)、验证集决定系数(coefficient of determination of prediction set,rp)和相对分析误差(relative percent deviation,RPD)作为模型的评价指标。结果ALA、EPA和DHA最优的光谱预处理方法分别为多元散射校正(multiple scatter correction,MSC)+二阶求导(second derivative,2nd)+Savitzky-Golay平滑、2nd和标准正态变化(standard normal variate,SNV)+2nd+Norris Derivative平滑,模型的rc值分别为0.9906、0.9311和0.9058,rp值分别为0.9894、0.6978和0.9098。结论该研究成功建立可用于鸡蛋中ALA、EPA和DHA含量快速测定的近红外模型,为鸡蛋中脂肪酸得快速检测提供了一种有效工具。
