scholarly journals Absorption of Polyunsaturated Fatty Acid (PUFA) Is Related to IgG Blood Levels of Neonatal Pigs during the First 48 Hours Postpartum

2020 ◽  
Vol 2020 ◽  
pp. 1-8 ◽  
Author(s):  
Kateryna Pierzynowska ◽  
Jarosław Woliński ◽  
Björn Weström ◽  
Radosław Jazwiec ◽  
Halyna Shmigel ◽  
...  

The current study is aimed at highlighting the impact of enterally or parenterally applied immunoglobulins (Igs) on polyunsaturated fatty acid (PUFA) absorption in newborn pigs. Piglets were chosen as the appropriate model since they are born agammaglobulinemic and any effects of Ig addition can thus be easily monitored. Twenty-one, new born piglets were used in the study. Plasma levels of PUFAs, ARA, DHA, and EPA dropped (similarly to that seen in human infants) by between 40 and 50% in newborn, unsuckled piglets fed an infant formula for 48 h. However, piglets fed the same infant formula but supplied with immunoglobulins (Igs) either orally, by feeding piglets with swine or bovine colostrum, or intravenously, by i.u.a. (intraumbilical artery) infusion of swine or human Ig preparations or swine serum, demonstrated improved growth and PUFA levels similar to those observed at birth. The significant positive correlation was found between the body weight gain, as well as levels of ARA and EPA, and plasma immunoglobulins concentration. These results indicate the importance of the presence of Ig in the blood for appropriate absorption of dietary PUFAs and probably other nutrients in newborn piglets. This may have an impact on the dietary guidelines for human neonates, especially those born prematurely with low plasma Ig levels, since PUFAs are important factors for brain development in early life.

2020 ◽  
Vol 4 (Supplement_2) ◽  
pp. 1038-1038
Author(s):  
Michael Miklus ◽  
Pedro Prieto ◽  
Cynthia Barber ◽  
Robert Rhoads ◽  
Samer El-Kadi

Abstract Objectives The objectives of this study were to determine the effect of 2’fucosyllactose (2’FL) and fat blends on growth, body composition and fatty acid profile of the liver and brain using the neonatal pig as a model for the human infant. Methods Pigs (3 d old) were randomly assigned to either: 1. control, 2. Palm Olein (PO) fat blend – Low 2'-FL, 3. PO – High 2'-FL, 4. High oleic acid (HO) – Low 2'-FL, 5. HO FB – High 2'-FL, 6. PO FB – GLA, or 7. kept with their sows. Pigs in groups 1 to 6 received 250 ml·kg−1·d−1 of formula in 5 equal meals for 15 d. On day 14 of the study, groups 1–6 received intraperitoneal E. coli LPS challenge at 100 µg·kg−1 weight. Results Body weight was greater for piglets fed by sows than those in the other groups (P < 0.001). In addition, % fat and bone mineral content were higher in the sow-fed group while lean % was less sow-fed piglets (group 7) compared with those in the other groups (P < 0.05). Only longissimus weight expressed as a % of body weight, was greater for group 7 compared with all other groups (P < 0.001). Soleus, semitendinosus, brain, heart and spleen weights as a % of body weight were similar across all groups. However, liver weight as a % of body weight was greater in groups 1–6 (3.7%) compared with group 7 (2.8%; P < 0.001). The proportion of brain 16:1 fatty acid was less (0.83%) for groups 1–6 than for group 7 pigs (1.08%; P < 0.0001). The proportion of 20:3 N6 was greatest (0.66%) for group 3 compared with groups 1 and 4 (0.55%; P < 0.05). In addition, the proportion of 20:5 N3 was greatest (0.12%) for group 3 compared with groups 1 and 7 (0.07%; P < 0.05). The proportion of liver 16:1, 18:0, and 18:1 cis-11 fatty acids were greater for group 7 (2.3, 23, 2.2%) than groups 1–6 (0.2, 20, 1.2%; P < 0.0001). Conversely, the contribution of 14:0, 18:1 cis-9, 18:3 N6 cis-6,9,12, and 22:6 N3 were greater for pigs in groups 1–6 (1.3, 0.6, and 14, 7.8%) compared with those in group 7 (0.5, 8.5, 0.2 and 3.5%; P < 0.0001). Conclusions Our data suggest that feeding 2’fucosyllactose had no effect on the body weight gain and composition in neonatal pigs. Our data also suggest that dietary fatty acids have a greater effect on liver than on brain fatty acid composition. Funding Sources Funding for the work was provided by Perrigo Nutritionals, LLC.


Nutrients ◽  
2019 ◽  
Vol 11 (9) ◽  
pp. 2200 ◽  
Author(s):  
Unger ◽  
Torres-Gonzalez ◽  
Kraft

Lifestyle is a key modifiable risk factor involved in the manifestation of metabolic syndrome and, in particular, diet plays a pivotal role in its prevention and development. Current dietary guidelines discourage the consumption of saturated fat and dietary sources rich in saturated fat, such as dairy products, despite data suggesting that full-fat dairy consumption is protective against metabolic syndrome. This narrative review assessed the recent epidemiological and clinical research that examined the consumption of dairy-derived saturated fatty acids (SFA) on metabolic syndrome risk. In addition, this review evaluated studies of individual SFA to gain insight into the potential mechanisms at play with intake of a diet enriched with these dairy-derived fatty acids. This work underscores that SFA are a heterogenous class of fatty acids that can differ considerably in their biological activity within the body depending on their length and specific chemical structure. In summary, previous work on the impact of dairy-derived SFA consumption on disease risk suggests that there is currently insufficient evidence to support current dietary guidelines which consolidate all dietary SFA into a single group of nutrients whose consumption should be reduced, regardless of dietary source, food matrix, and composition.


Author(s):  
I Wayan Weta ◽  
Mahadewa Tjokorda Gb ◽  
Wayan P Sutirtayasa ◽  
Anak Agung Ngurah Subawa ◽  
Safarina G Malik ◽  
...  

  Objectives: In addition to the rise in obesity prevalence globally, morbidity due to nonalcoholic fatty liver disease is increasing. Primary modalities for preventing and managing this problem include dietary modification and improved physical activities. A daily diet with a low n-6:n-3 polyunsaturated fatty acid (PUFA) ratio is suspected to contribute to ameliorating liver steatosis (LS). The present study was conducted to elucidate the effects of an n-6:n-3 PUFA ratio of 2:1 in alleviating LS.Methods: Twenty-four young obese women with LS were recruited from Denpasar, Bali, Indonesia. They were randomly allocated to an intervention or control group. Both groups were given linoleic acid:α-linolenic acid at ratios of 2035:970 and 240:100 g, respectively, for 12 weeks. Baseline and end-line data were obtained. All patients were advised to maintain their daily energy intake no more than 1500 kcal and to perform structured physical exercises once a week.Results: The intervention significantly decreased the body fat (body mass index, p=0.040; triglyceride, p=0.008) and serum tumor necrosis factor-α (TNF-α) levels (p=0.002) and increased serum interleukin-10 (IL-10) levels (p=0.004). The severity of LS was reduced through the intervention (odds ratio=0.064; 95% confidence interval=0.013-0.310; p=0.001).Conclusion: An increased intake of 2:1 n-6:n-3 PUFA ratio alleviated LS, decreased body fat composition and serum TNF-α levels, and increased serum IL-10 levels.


2007 ◽  
Vol 293 (3) ◽  
pp. R1056-R1062 ◽  
Author(s):  
Jacqueline Férézou-Viala ◽  
Anne-France Roy ◽  
Colette Sérougne ◽  
Daniel Gripois ◽  
Michel Parquet ◽  
...  

Epidemiological and animal studies suggest that the alteration of hormonal and metabolic environment during fetal and neonatal development can contribute to development of metabolic syndrome in adulthood. In this paper, we investigated the impact of maternal high-fat (HF) diet on hypothalamic leptin sensitivity and body weight gain of offspring. Adult Wistar female rats received a HF or a control normal-fat (C) diet for 6 wk before gestation until the end of the suckling period. After weaning, pups received either C or HF diet during 6 wk. Body weight gain and metabolic and endocrine parameters were measured in the eight groups of rats formed according to a postweaning diet, maternal diet, and gender. To evaluate hypothalamic leptin sensitivity in each group, STAT-3 phosphorylation was measured in response to leptin or saline intraperitoneal bolus. Pups exhibited similar body weights at birth, but at weaning, those born to HF dams weighed significantly less (−12%) than those born to C dams. When given the HF diet, males and females born to HF dams exhibited smaller body weight and feed efficiency than those born to C dams, suggesting increased energy expenditure programmed by the maternal HF diet. Thus, maternal HF feeding could be protective against adverse effects of the HF diet as observed in male offspring of control dams: overweight (+17%) with hyperleptinemia and hyperinsulinemia. Furthermore, offspring of HF dams fed either C or HF diet exhibited an alteration in hypothalamic leptin-dependent STAT-3 phosphorylation. We conclude that maternal high-fat diet programs a hypothalamic leptin resistance in offspring, which, however, fails to increase the body weight gain until adulthood.


2021 ◽  
Vol 5 (Supplement_2) ◽  
pp. 762-762
Author(s):  
Angela Jaramillo-Ospina ◽  
Rosario Toro-Campos ◽  
Teresa Murguia-Peniche ◽  
Jennifer Wampler ◽  
Steven Wu ◽  
...  

Abstract Objectives Bovine milk fat globule membrane (bMFGM) added in routine infant formula supports normal growth and safety through 24 mo of age in term infants. The impact on micronutrients and glucose-related biomarkers is assessed here. Methods In this double-blind, randomized, controlled trial, formula-fed infants were enrolled (<120 days of age) and randomized to receive a standard cow´s milk-based infant formula (SF, n = 174) or a similar formula with added whey protein-lipid concentrate (5 g/L; bMFGM; EF n = 173); exclusively breastfed infants were enrolled as a reference (HM, n = 235). In 50% of infants (chosen at random), parents agreed to blood collection (2–4 h fasting) at baseline, 6, 12, and 24 mo of age. Serum micronutrients (zinc, iron, ferritin, transferrin receptor) and glucose-related biomarkers (glucose, insulin, HOMA-IR [Homeostatic Model Assessment-Insulin Resistance], IGF-1) were analyzed. Results At baseline, significant differences in markers of iron status (serum iron, ferritin) and glucose-related biomarkers (glucose, HOMA-IR, and IGF-1) were detected between HM and study formula groups. At 6 and 12 mo, no differences in any measure were detected between study formula groups. Serum iron and ferritin at 12 mo as well as glucose-related biomarkers at 6 mo (insulin, HOMA-IR, IGF-1) and 12 mo (IGF-1 only) were lower in the HM vs study formula groups. By 24 mo, micronutrients and glucose-related biomarkers were similar between study formula groups (with the exception of significantly lower serum iron in the SF group); for HM vs study formula groups, differences included significantly lower zinc and IGF-1. Conclusions Patterns of micronutrients and glucose-related biomarkers were similar through two years of age in infants who received formula through one year. This study add to the body of data available for glucose-related biomarkers in children at two years of age and younger. Funding Sources The study was funded by Mead Johnson Nutrition (MJN). TMP, SSW, and JLW are currently, and CLB was previously employed by MJN.


2021 ◽  
Vol 11 (21) ◽  
pp. 9845
Author(s):  
Alexandra Mihailescu ◽  
Vlad Serafim ◽  
Corina Paul ◽  
Nicoleta Andreescu ◽  
Diana-Andreea Tiugan ◽  
...  

Polyunsaturated fatty acids are involved in a wide variety of biological functions. Linoleic acid and alpha-linolenic acid are two essential fatty acids that the body cannot synthesize. The conversion rates in the body depend on FADS2 genetic variants. Certain variations in this gene are directly responsible for the low levels and poor conversion efficiency of the delta-6 desaturase enzyme, resulting in low circulating levels of docosahexaenoic acid. In this study, we evaluated the impact of the rs526126 FADS2 gene polymorphism on fatty acid levels in a group of two hundred children (n = 95 males, n = 105 females) aged 7–18 years, with obesity defined by BMI > +2 SD. Fatty acid quantification was performed by LC-MS/MS while genotyping for genetic variants was performed using a custom-made hotspot sequencing panel of 55 SNPs. Our results suggest that rs526126 FADS2 gene polymorphism specifically impacts the plasma levels of free n-3 polyunsaturated fatty acids. Finally, the presence of the minor allele G of rs526126 could have beneficial effects, as it was associated with higher levels of free docosahexaenoic acid in plasma, especially in children with low n-3 intakes.


2020 ◽  
Author(s):  
Hélène Cazzola ◽  
Laurine Lemaire ◽  
Sébastien Acket ◽  
Elise Prost ◽  
Luminita Duma ◽  
...  

AbstractEnterohemorrhagic Escherichia coli (EHEC) O157:H7 is a major cause of foodborne gastrointestinal illness. The adhesion of EHEC on host tissues is the first step enabling bacterial colonization. Adhesins like fimbriae and flagella mediate this mechanism. Here, we studied the interaction of the bacterial flagellum with the host cell’s plasma membrane using Giant Unilamellar Vesicles (GUVs) as a biologically relevant model. Cultured cell lines contain many different molecular components including proteins and glycoproteins. In contrast, with GUVs we can characterize the bacterial mode of interaction solely with a defined lipid part of the cell membrane. Bacterial adhesion on GUVs was dependent on the presence of the flagellar filament and its motility. By testing different phospholipid head groups, the nature of the fatty acid chains or the liposome curvature, we found that lipid packing is a key parameter to enable bacterial adhesion. Using HT-29 cells grown in the presence of polyunsaturated fatty acid (α-linolenic acid) or saturated fatty acid (palmitic acid), we found that α-linolenic acid reduced adhesion of wild type EHEC but not of a non-flagellated mutant. Finally, our results reveal that the presence of flagella is advantageous for the bacteria to bind to lipid rafts. We speculate that polyunsaturated fatty acids prevent flagellar adhesion on membrane bilayers and play a clear role for optimal host colonization. Flagella-mediated adhesion to plasma membranes has broad implications to host-pathogen interactions.ImportanceBacterial adhesion is a crucial step to allow bacteria to colonize their hosts, invade tissues and form biofilm. Enterohemorrhagic E. coli O157:H7 is a human pathogen and the causative agent of diarrhea and hemorrhagic colitis. Here, we use biomimetic membrane models and cell lines to decipher the impact of lipid content of the plasma membrane on enterohemorrhagic E. coli flagella-mediated adhesion. Our findings provide evidence that polyunsaturated fatty acid (α-linolenic acid) inhibits E. coli flagella adhesion to the plasma membrane in a mechanism separate from its antimicrobial and anti-inflammatory functions. In addition, we confirm that cholesterol-enriched lipid microdomains, often called lipid rafts are important in bacterial adhesion. These findings significantly strengthen plasma membrane adhesion via bacterial flagella in an important human pathogen. This mechanism represents a promising target for the development of novel anti-adhesion therapies.


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