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Baker JT, Duarte ME, Kim SW. Effects of dietary xylanase supplementation on growth performance, intestinal health, and immune response of nursery pigs fed diets with reduced metabolizable energy. J Anim Sci 2024; 102:skae026. [PMID: 38280204 PMCID: PMC10889732 DOI: 10.1093/jas/skae026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Accepted: 01/25/2024] [Indexed: 01/29/2024] Open
Abstract
This study aimed to investigate the effects of xylanase on growth performance and intestinal health of nursery pigs fed diets with reduced metabolizable energy (ME). One hundred ninety-two pigs at 8.7 kg ± 0.7 body weight (BW) after 7 d of weaning were allotted in a randomized complete block design with initial BW and sex as blocks. Eight dietary treatments consisted of 5 ME levels (3,400, 3,375, 3,350, 3,325, and 3,300 kcal ME/kg) below the NRC (2012) requirement and 4 levels of xylanase (0, 1,200, 2,400, and 3,600 XU/kg) to a diet with 3,300 kcal ME/kg. All pigs received their respective treatments for 35 d in 2 phases, pre-starter (14 d) and starter (21 d). On day 35, eight pigs in 3,400 kcal/kg (CON), 3,300 kcal/kg (LE), and 3,300 kcal/kg + 3,600 XU xylanase/kg (LEX) were euthanized to collect jejunal tissues and digesta for the evaluation of mucosa-associated microbiota, intestinal immune response, oxidative stress status, intestinal morphology, crypt cell proliferation, and digesta viscosity as well as ileal digesta to measure apparent ileal digestibility. Data were analyzed using the MIXED procedure on SAS 9.4. The LE increased (P < 0.05) jejunal digesta viscosity, tended to have decreased (P = 0.053) relative abundance of Prevotella, and tended to increase (P = 0.055) Lactobacillus. The LE also increased (P < 0.05) the concentration of protein carbonyl whereas malondialdehyde, villus height (VH), villus height to crypt depth ratio (VH:CD), apparent ileal digestibility (AID) of nutrients, and finally average daily feed intake were decreased (P < 0.05). The LE did not affect average daily gain (ADG). The LEX decreased (P < 0.05) digesta viscosity, increased (P < 0.05) the relative abundance of Prevotella, decreased (P < 0.05) Helicobacter, decreased (P < 0.05) the concentration of protein carbonyl, tended to increase (P = 0.065) VH, and decreased (P < 0.05) VH:CD and crypt cell proliferation. Moreover, LEX increased (P < 0.05) the AID of dry matter and gross energy and tended to increase (P = 0.099; P = 0.076) AID of crude protein, and ether extract. The LEX did not affect ADG but did tend to decrease (P = 0.070) fecal score during the starter phase. Overall, reducing ME negatively affected intestinal health parameters and nutrient digestibility without affecting growth. Supplementation of xylanase mitigated some of the negative effects observed by ME reduction on intestinal health and digestibility of nutrients without affecting growth.
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Affiliation(s)
- Jonathan T Baker
- Department of Animal Science, North Carolina State University, Raleigh, NC 27695, USA
| | - Marcos Elias Duarte
- Department of Animal Science, North Carolina State University, Raleigh, NC 27695, USA
| | - Sung Woo Kim
- Department of Animal Science, North Carolina State University, Raleigh, NC 27695, USA
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Andres SF, Zhang Y, Kuhn M, Scottoline B. Building better barriers: how nutrition and undernutrition impact pediatric intestinal health. Front Immunol 2023; 14:1192936. [PMID: 37545496 PMCID: PMC10401430 DOI: 10.3389/fimmu.2023.1192936] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Accepted: 06/26/2023] [Indexed: 08/08/2023] Open
Abstract
Chronic undernutrition is a major cause of death for children under five, leaving survivors at risk for adverse long-term consequences. This review focuses on the role of nutrients in normal intestinal development and function, from the intestinal epithelium, to the closely-associated mucosal immune system and intestinal microbiota. We examine what is known about the impacts of undernutrition on intestinal physiology, with focus again on the same systems. We provide a discussion of existing animal models of undernutrition, and review the evidence demonstrating that correcting undernutrition alone does not fully ameliorate effects on intestinal function, the microbiome, or growth. We review efforts to treat undernutrition that incorporate data indicating that improved recovery is possible with interventions focused not only on delivery of sufficient energy, macronutrients, and micronutrients, but also on efforts to correct the abnormal intestinal microbiome that is a consequence of undernutrition. Understanding of the role of the intestinal microbiome in the undernourished state and correction of the phenotype is both complex and a subject that holds great potential to improve recovery. We conclude with critical unanswered questions in the field, including the need for greater mechanistic research, improved models for the impacts of undernourishment, and new interventions that incorporate recent research gains. This review highlights the importance of understanding the mechanistic effects of undernutrition on the intestinal ecosystem to better treat and improve long-term outcomes for survivors.
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Affiliation(s)
- Sarah F. Andres
- Division of Pediatric Gastroenterology, Department of Pediatrics, Oregon Health and Science University, Portland, OR, United States
| | - Yang Zhang
- Division of Pediatric Gastroenterology, Department of Pediatrics, Oregon Health and Science University, Portland, OR, United States
| | - Madeline Kuhn
- Division of Pediatric Gastroenterology, Department of Pediatrics, Oregon Health and Science University, Portland, OR, United States
| | - Brian Scottoline
- Division of Neonatology, Department of Pediatrics, Oregon Health and Science University, Portland, OR, United States
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Liermann W, Tümmler LM, Kuhla B, Viergutz T, Hammon HM. Effects of rumen cannulation combined with different pre-weaning feeding intensities on the intestinal, splenic and thymic immune system in heifer calves several month after surgery. Front Immunol 2023; 14:1160935. [PMID: 37143684 PMCID: PMC10151785 DOI: 10.3389/fimmu.2023.1160935] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Accepted: 03/27/2023] [Indexed: 05/06/2023] Open
Abstract
Fistulation is a helpful procedure in animal nutritional research and also common practise in human medicine. However, there are indications that alterations in the upper gastrointestinal tract contribute to intestinal immune modulations. The present study aimed to investigate effects of a rumen cannulation in week 3 of life on the intestinal and tissue specific immune system of 34-week old heifers. Nutrition influences the development of the neonatal intestinal immune system to a high extent. Therefore, rumen cannulation was investigated in combination with different pre-weaning milk feeding intensities (20% (20MR) vs. 10% milk replacer feeding (10MR). Heifers of 20MR without rumen cannula (NRC) showed higher cluster of differentiation (CD)8+ T cell subsets in mesenteric lymph nodes (MSL) compared to heifers with rumen cannula (RC) and 10MRNRC heifers. CD4+ T cell subsets in jejunal intraepithelial lymphocytes (IELs) were higher in 10MRNRC heifers compared to 10MRRC heifers. CD4+ T cell subsets in ileal IELs were lower and CD21+ B cell subsets were higher in NRC heifers compared to RC heifers. CD8+ T cell subsets in spleen tended to be lower in 20MRNRC heifers compared to all other groups. Splenic CD21+ B cell subsets were higher in 20MRNRC heifers compared to RC heifers. Splenic toll like receptor (TLR) 6 expression was increased and IL4 expression tended to be increased in RC heifers than NRC heifers. Splenic TLR2, 3 and 10 gene expression was higher in 20MR compared to 10MR heifers. Jejunal prostaglandin endoperoxide synthase 2 expression was higher in RC heifers than NRC heifers, and MUC2 expression tended to increase in 20MR heifers compared to 10MR heifers. In conclusion, rumen cannulation modulated T and B cell subsets in the down streaming gastrointestinal tract and spleen. Pre-weaning feeding intensity seemed to affect intestinal mucin secretion and T and B cell subsets in MSL, spleen and thymus until several month later. Interestingly, in MSL, spleen and thymus the 10MR feeding regime evoked similar modulations of T and B cell subsets like rumen cannulation.
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Affiliation(s)
- Wendy Liermann
- Institute of Nutritional Physiology "Oskar Kellner", Research Institute for Farm Animal Biology (FBN), Dummerstorf, Germany
- *Correspondence: Wendy Liermann,
| | - Lisa-Maria Tümmler
- Institute of Nutritional Physiology "Oskar Kellner", Research Institute for Farm Animal Biology (FBN), Dummerstorf, Germany
| | - Björn Kuhla
- Institute of Nutritional Physiology "Oskar Kellner", Research Institute for Farm Animal Biology (FBN), Dummerstorf, Germany
| | - Torsten Viergutz
- Institute of Reproductive Biology, Research Institute for Farm Animal Biology (FBN), Dummerstorf, Germany
| | - Harald Michael Hammon
- Institute of Nutritional Physiology "Oskar Kellner", Research Institute for Farm Animal Biology (FBN), Dummerstorf, Germany
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Hwang JA, Shin J, Cho E, Ahn SY, Ko GJ, Kwon YJ, Kim JE. Risk factors associated with the discordance in kidney function decline rate in identical twins. PLoS One 2023; 18:e0284154. [PMID: 37053150 PMCID: PMC10101412 DOI: 10.1371/journal.pone.0284154] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Accepted: 03/26/2023] [Indexed: 04/14/2023] Open
Abstract
BACKGROUND The rate of kidney function decline is different for each individual regardless of any difference in the medical histories. This study set out to identify the risk factors for high discordance in kidney function decline in an identical twin cohort. METHODS This study included 333 identical twins from the Korean Genome and Epidemiology Study who were categorized into two groups according to the estimated glomerular filtration rate (eGFR) decline: the slow and rapid progressor groups. The mean differences of variables were compared between the two groups. We calculated the difference in the annual eGFR change between twins and analyzed the risk factors associated with high discordance in twins who had > 5 mL/min/1.73 m2 /yr of the intra-twin difference in the annual eGFR decline. Identical twins with diabetes and baseline eGFR < 60 mL/min/1.73 m2 were excluded. RESULTS The high discordance twins showed significant differences in body mass index; waist-to-hip ratio; total body fat percentage; and levels of blood hemoglobin, serum fasting glucose, albumin, triglyceride, and uric acid; however, there were no differences in low discordance twins. Multivariable logistic regression showed that blood hemoglobin level is the only significant factor associated with high discordance of eGFR decline in twins. CONCLUSIONS Blood hemoglobin level may play a role in the individual differences in kidney function decline.
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Affiliation(s)
- Jeong Ah Hwang
- Department of Internal Medicine, Korea University Guro Hospital, Seoul, Republic of Korea
| | - Jaeun Shin
- Department of Internal Medicine, Korea University Guro Hospital, Seoul, Republic of Korea
| | - Eunjung Cho
- Department of Internal Medicine, Korea University Guro Hospital, Seoul, Republic of Korea
| | - Shin Young Ahn
- Department of Internal Medicine, Korea University Guro Hospital, Seoul, Republic of Korea
- Department of Internal Medicine, Korea University College of Medicine, Seoul, Republic of Korea
| | - Gang-Jee Ko
- Department of Internal Medicine, Korea University Guro Hospital, Seoul, Republic of Korea
- Department of Internal Medicine, Korea University College of Medicine, Seoul, Republic of Korea
| | - Young Joo Kwon
- Department of Internal Medicine, Korea University Guro Hospital, Seoul, Republic of Korea
- Department of Internal Medicine, Korea University College of Medicine, Seoul, Republic of Korea
| | - Ji Eun Kim
- Department of Internal Medicine, Korea University Guro Hospital, Seoul, Republic of Korea
- Department of Internal Medicine, Korea University College of Medicine, Seoul, Republic of Korea
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Abdelsattar MM, Zhuang Y, Cui K, Bi Y, Haridy M, Zhang N. Longitudinal investigations of anatomical and morphological development of the gastrointestinal tract in goats from colostrum to postweaning. J Dairy Sci 2022; 105:2597-2611. [PMID: 35086701 DOI: 10.3168/jds.2021-21056] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2021] [Accepted: 11/29/2021] [Indexed: 01/02/2023]
Abstract
The digestive tract development in goat kids around weaning is vital to the establishment of digestion and absorption function, growth, and health of adults. The objective was to explore the effects of age and solid feed on the anatomical and morphological development of the gastrointestinal tract of Laiwu Black goat kids. Forty-eight female Laiwu Black goats at 8 ages (1, 7, 14, 28, 42, 56, 70, and 84 d; 6 goats per group) were selected and killed for anatomical and morphological analysis. The goats experienced the following 4 diet phases: maternal colostrum (MC; d 1, d 7), maternal milk (MM; d 14, d 28), maternal milk plus solid diet (MMSD; d 42, d 56) and only solid diet (OSD; d 70, d 84). The body and carcass weights were not significantly changed during MC and MM phases but changed during the MMSD phase. The absolute growth of body and carcass weights were higher in the MMSD phase than in MM phase. In addition, the dressing percentage was the highest in the MMSD phase. The body size indices evolved progressively and increased over time. The percentage of internal and external organs to body weight decreased over time, whereas the percentage to complex stomach percentage increased. The rumen and omasum weight experienced synchronous absolute growth over time, especially in the OSD phase. In contrast, the absolute growth of the reticulum and abomasum was the highest in MMSD and MC phases, respectively. After weaning, the goats showed the highest papillae height, lamina propria, muscle layer thickness, and epithelial thickness. The OSD phase showed the highest colonic mucosa thickness, ileal villus height, and ileal muscle layer thickness. The crypt depth was higher in the MMSD phase than in the MM phase. Moreover, the crypt depth and muscle layer thickness of jejunum increased over time. Furthermore, duodenal crypt depth, muscle layer thickness, and epithelial thickness increased in the OSD phase compared with other stages. In conclusion, the histological investigation supports the improvement of the morphological development of the digestive tract and the growth performance in the solid feed phase. It is recommended to add solid food as early as 4 wk old.
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Affiliation(s)
- M M Abdelsattar
- Institute of Feed Research of Chinese Academy of Agricultural Sciences, Key Laboratory of Feed Biotechnology of the Ministry of Agriculture and Rural Affairs, Beijing, 100081, China; Animal and Poultry Production Department, Faculty of Agriculture, South Valley University, Qena, 83523, Egypt
| | - Y Zhuang
- Institute of Feed Research of Chinese Academy of Agricultural Sciences, Key Laboratory of Feed Biotechnology of the Ministry of Agriculture and Rural Affairs, Beijing, 100081, China
| | - K Cui
- Institute of Feed Research of Chinese Academy of Agricultural Sciences, Key Laboratory of Feed Biotechnology of the Ministry of Agriculture and Rural Affairs, Beijing, 100081, China
| | - Y Bi
- Institute of Feed Research of Chinese Academy of Agricultural Sciences, Key Laboratory of Feed Biotechnology of the Ministry of Agriculture and Rural Affairs, Beijing, 100081, China
| | - M Haridy
- Department of Pathology and Clinical Pathology, Faculty of Veterinary Medicine, South Valley University, Qena 83523, Egypt
| | - N Zhang
- Institute of Feed Research of Chinese Academy of Agricultural Sciences, Key Laboratory of Feed Biotechnology of the Ministry of Agriculture and Rural Affairs, Beijing, 100081, China.
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Abstract
The intestinal tract is the entry gate for nutrients and symbiotic organisms, being in constant contact with external environment. DNA methylation is one of the keys to how environmental conditions, diet and nutritional status included, shape functionality in the gut and systemically. This review aims to summarise findings on the importance of methylation to gut development, differentiation and function. Evidence to date on how external factors such as diet, dietary supplements, nutritional status and microbiota modifications modulate intestinal function through DNA methylation is also presented.
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Coones RT, Green RJ, Frazier RA. Investigating lipid headgroup composition within epithelial membranes: a systematic review. SOFT MATTER 2021; 17:6773-6786. [PMID: 34212942 DOI: 10.1039/d1sm00703c] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Membrane lipid composition is often quoted within the literature, but with very little insight into how or why these compositions vary when compared to other biological membranes. One prominent area that lacks understanding in terms of rationale for lipid variability is the human gastro-intestinal tract (GIT). We have carried out a comprehensive systematic literature search to ascertain the key lipid components of epithelial membranes, with a particular focus on addressing the human GIT and to use compositional data to understand structural aspects of biological membranes. Both bacterial outer membranes and the human erythrocyte membrane were used as a comparison for the mammalian [epithelial] membranes and to understand variations in lipid presence. We show that phosphatidylcholine (PC) lipid types tend to dominate (33%) with phosphatidylethanolamines (PE) and cholesterol having very similar abundances (25 and 23% respectively). This systematic review presents a detailed insight into lipid headgroup composition and roles in various membrane types, with a summary of the distinction between the major lipid bilayer forming lipids and how peripheral lipids regulate charge and fluidity. The variety of lipids present in biological membranes is discussed and rationalised in terms function as well as cellular position.
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Affiliation(s)
- R T Coones
- Department of Pharmacy, School of Chemistry, Food, and Pharmacy, University of Reading, UK.
| | - R J Green
- Department of Pharmacy, School of Chemistry, Food, and Pharmacy, University of Reading, UK.
| | - R A Frazier
- Department of Food and Nutritional Sciences, School of Chemistry, Food and Pharmacy, University of Reading, UK.
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Ji Y, Fan X, Zhang Y, Li J, Dai Z, Wu Z. Glycine regulates mucosal immunity and the intestinal microbial composition in weaned piglets. Amino Acids 2021; 54:385-398. [PMID: 33839961 DOI: 10.1007/s00726-021-02976-y] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Accepted: 03/31/2021] [Indexed: 02/06/2023]
Abstract
Glycine is an amino acid with a diverse array of health benefits regarding metabolism, immunity, and development. The aim of this study was to test the hypothesis that glycine supplementation alters the intestinal microbial composition and improves the intestinal mucosal immunity of weaned piglets. One hundred and twenty-eight weaned piglets divided into 4 groups were fed with a corn- and soybean meal-based diet supplemented with 0 (control), 0.5, 1, or 2% glycine for 7 days. The intestinal microbiota and tissue samples from the control and the 2% glycine-supplemented piglets were collected for determination of the composition of microbial community and the intestinal mucosal barrier function. Piglets fed with diet containing 2% glycine, instead of 0.5% or 1% glycine, presented elevated average daily gain and feed conversion ratio, as compared with the control. 2% glycine enhanced the abundance of mucins in the jejunum and ileum and mRNA level of porcine β-defensin (pBD) 2 and pBD-3, as well as the protein level of secretory immunoglobulin A (sIgA) in the jejunum. The mRNA expression of tumor necrosis factor (TNF)-α, interleukin (IL)-1β, and IL-6, and the protein level of phosphorylated p38 mitogen-activated protein kinase (MAPK), signal transducer and activator of transcription 3 (STAT3), nuclear factor (NF)-κB p65, and claudin-2 in the jejunum were lower in the 2% glycine group than that in the control. In addition, an elevated ratio of CD4+/CD8+ T lymphocytes was observed in the jejunum of piglets receiving diet supplemented with 2% glycine. The colon content of piglets fed with 2% glycine exhibited a reduction in abundance of pathogenic bacteria (Escherichia-Shigella, Clostridium, and Burkholderiales) and an increase in short-chain fatty acid-producing bacteria (Blautia, Lachnospiraceae, Anaerostipes, and Prevotella) in comparison with the control. We conclude that dietary supplementation with 2% glycine improves the intestinal immunological barrier function and the microbial composition, therefore, contributing to the growth performance of weaned piglets.
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Affiliation(s)
- Yun Ji
- State Key Laboratory of Animal Nutrition, Department of Animal Nutrition and Feed Science, China Agricultural University, Beijing, 100193, China
| | - Xiaoxiao Fan
- State Key Laboratory of Animal Nutrition, Department of Animal Nutrition and Feed Science, China Agricultural University, Beijing, 100193, China
| | - Yunchang Zhang
- State Key Laboratory of Animal Nutrition, Department of Animal Nutrition and Feed Science, China Agricultural University, Beijing, 100193, China
| | - Ju Li
- Henan Yinfa Animal Husbandry Co., Xinzheng, 451100, Henan, China
| | - Zhaolai Dai
- State Key Laboratory of Animal Nutrition, Department of Animal Nutrition and Feed Science, China Agricultural University, Beijing, 100193, China
| | - Zhenlong Wu
- State Key Laboratory of Animal Nutrition, Department of Animal Nutrition and Feed Science, China Agricultural University, Beijing, 100193, China.
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9
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Extracellular vesicles isolated from milk can improve gut barrier dysfunction induced by malnutrition. Sci Rep 2021; 11:7635. [PMID: 33828139 PMCID: PMC8026962 DOI: 10.1038/s41598-021-86920-w] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2020] [Accepted: 03/18/2021] [Indexed: 02/01/2023] Open
Abstract
Malnutrition impacts approximately 50 million children worldwide and is linked to 45% of global mortality in children below the age of five. Severe acute malnutrition (SAM) is associated with intestinal barrier breakdown and epithelial atrophy. Extracellular vesicles including exosomes (EVs; 30-150 nm) can travel to distant target cells through biofluids including milk. Since milk-derived EVs are known to induce intestinal stem cell proliferation, this study aimed to examine their potential efficacy in improving malnutrition-induced atrophy of intestinal mucosa and barrier dysfunction. Mice were fed either a control (18%) or a low protein (1%) diet for 14 days to induce malnutrition. From day 10 to 14, they received either bovine milk EVs or control gavage and were sacrificed on day 15, 4 h after a Fluorescein Isothiocyanate (FITC) dose. Tissue and blood were collected for histological and epithelial barrier function analyses. Mice fed low protein diet developed intestinal villus atrophy and barrier dysfunction. Despite continued low protein diet feeding, milk EV treatment improved intestinal permeability, intestinal architecture and cellular proliferation. Our results suggest that EVs enriched from milk should be further explored as a valuable adjuvant therapy to standard clinical management of malnourished children with high risk of morbidity and mortality.
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Bergmans RS, Nikodemova M, Stull VJ, Rapp A, Malecki KMC. Comparison of cricket diet with peanut-based and milk-based diets in the recovery from protein malnutrition in mice and the impact on growth, metabolism and immune function. PLoS One 2020; 15:e0234559. [PMID: 32525953 PMCID: PMC7289377 DOI: 10.1371/journal.pone.0234559] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2020] [Accepted: 05/27/2020] [Indexed: 11/18/2022] Open
Abstract
Some evidence suggests that edible insects could be used to treat malnutrition following protein deficiency. However, additional studies are needed to better assess the potential of edible insects as a therapeutic food supplement and their long-term impact on recovery from malnutrition. The goals of this study were to investigate the effectiveness of a cricket-based diet in recovery from protein-malnutrition in early life, and to compare cricket protein to more traditional sources used for food fortification and supplementation. Protein-malnutrition was induced by administration of an isocaloric hypoprotein diet (5% protein calories) in young male mice for two weeks during puberty, followed by a six-week recovery period using a cricket-, peanut- or milk-based diet. We examined the impact of protein-malnutrition and subsequent recovery on body weight, growth and select biomarkers of inflammation and metabolism. Protein-malnutrition resulted in growth retardation, downregulation of inflammatory markers in spleen tissue, decreased levels of serum triglycerides, and elevated serum levels of leptin and adiponectin. The cricket-based diet performed equally well as the peanut- and milk-based diets in body weight recovery, but there were differences in immune and metabolic markers among the different recovery diets. Results suggest edible crickets may provide an alternative nutrient-dense protein source with relatively low environmental demands for combating the effects of early-life malnutrition compared to more traditional supplementation and fortification sources. Additional investigations are needed to examine the short and long term impacts of different recovery diets on metabolism and immune function.
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Affiliation(s)
- Rachel S. Bergmans
- Department of Psychiatry, University of Michigan, Ann Arbor, Michigan, United States of America
| | - Maria Nikodemova
- Department of Population Health Sciences, University of Wisconsin-Madison, Madison, Wisconsin, United States of America
| | - Valerie J. Stull
- Global Health Institute, University of Wisconsin-Madison, Madison, Wisconsin, United States of America
| | - Ashley Rapp
- Department of Epidemiology, University of Michigan, Ann Arbor, Michigan, United States of America
| | - Kristen M. C. Malecki
- Department of Population Health Sciences, University of Wisconsin-Madison, Madison, Wisconsin, United States of America
- * E-mail:
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Nutritional Regulation of Gut Barrier Integrity in Weaning Piglets. Animals (Basel) 2019; 9:ani9121045. [PMID: 31795348 PMCID: PMC6940750 DOI: 10.3390/ani9121045] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Revised: 11/23/2019] [Accepted: 11/26/2019] [Indexed: 12/12/2022] Open
Abstract
Simple Summary Weaning is a very stressful period in the piglet’s life in intensive farming: it is a sudden process occurring between three to four weeks of age, when the gastrointestinal tract (GIT) is still immature. The GIT is formed by the epithelial, immune and enteric nervous system which controls epithelial barrier integrity as well as gut functions including the transport of luminal nutrients, water and electrolytes. Early weaning is characterized by a breakdown of these gut functions, an increase in intestinal permeability and the appearance of gastrointestinal functional disorders, which can have long-lasting consequences in the pig’s life. Weaning, therefore, requires the correct level of nutrients, high quality ingredients, and management, which are directed primarily at encouraging rapid feed intake whilst reducing mortality and morbidity. This review describes the organization of the GIT and highlights the interactions between feed components and the morphology and physiology of the epithelial barrier. Novel dietary strategies focused on improving gut health are also discussed, considering the impacts of selected feed ingredients or additives on the GIT such as functional amino acids, phytochemicals and organic acids. Abstract Weaning is very stressful for piglets and leads to alterations in the intestinal barrier, a reduction in nutrient absorption and a higher susceptibility to intestinal diseases with heavy economic losses. This review describes the structures involved in the intestinal barrier: the epithelial barrier, immune barrier and the enteric nervous system. Here, new insights into the interactions between feed components and the physiology and morphology of the epithelial barrier are highlighted. Dietary strategies focused on improving gut health are also described including amino acids, phytochemicals and organic acids.
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12
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Chen X, Yang Z, Hu H, Duan W, Wang A, Dong Y, Gao W, Deng S, Cheng B, Li J, Sun N, Cheng Z, Guo W, Li Y, Gao Y. Differentiation and Proliferation of Intestinal Stem Cells and its Underlying Regulated Mechanisms during Weaning. Curr Protein Pept Sci 2019; 20:690-695. [DOI: 10.2174/1389203720666190125101834] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2018] [Revised: 12/30/2018] [Accepted: 01/13/2019] [Indexed: 11/22/2022]
Abstract
Weaning is a stressful event associated with gastrointestinal disorders and increased disease
susceptibility. Many studies have reported the changes that happened in the gut of various mammals such
as pigs and rats after weaning. These findings suggest that the development of intestinal tract mainly is
affected at the time of weaning through interfering in the differentiation and proliferation of intestinal
stem cells. Weaning stress stimulates the rapid differentiation and proliferation of intestinal stem cells in
order to adjust to changes caused by weaning, which are mainly manifested as deeper crypt depth and
decreased intestine villus height. However, the accelerated cellular process may lead to an increase in
the proportion of immature intestinal epithelial cells and goblet cells, which affect intestinal permeability
and reduce the gut-barrier function against toxins and pathogens. This review briefly describes the effects
coforticotrophin-releasing factor (CRF), epidermal growth factor (EGF) and polyamines on the differentiation
and proliferation of intestinal stem cells after weaning and discusses its possible underlying regulatory
mechanisms. Firstly, weaning stress activates CRF to binds its receptors, which induces proinflammatory
responses and promote rapid differentiation and proliferation of intestinal stem cells to a
larger fraction of immature intestinal epithelial cells and goblet cells. Secondly, the lack of EGF after
weaning inhibits the expression of goblet cell maturation factors and makes it difficult for goblet cells
and intestinal epithelial cells to mature. Finally, diet and endogenous synthesis lead to excessive polyamines
in the intestine, which promote the proliferation of intestinal stem cells by regulating the expression
of human antigen R (HuR) and other related genes at the time of weaning.
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Affiliation(s)
- Xi Chen
- Piwei Institute, Guangzhou University of Chinese Medicine, Guangzhou, 510405, China
| | - Zehong Yang
- Piwei Institute, Guangzhou University of Chinese Medicine, Guangzhou, 510405, China
| | - Huiling Hu
- Piwei Institute, Guangzhou University of Chinese Medicine, Guangzhou, 510405, China
| | - Wentao Duan
- Institute of Clinical Pharmacology, Guangzhou University of Chinese Medicine, Guangzhou, 510405, China
| | - Aiping Wang
- Piwei Institute, Guangzhou University of Chinese Medicine, Guangzhou, 510405, China
| | - Yanbin Dong
- Piwei Institute, Guangzhou University of Chinese Medicine, Guangzhou, 510405, China
| | - Weihang Gao
- Piwei Institute, Guangzhou University of Chinese Medicine, Guangzhou, 510405, China
| | - Song Deng
- Piwei Institute, Guangzhou University of Chinese Medicine, Guangzhou, 510405, China
| | - Bo Cheng
- Piwei Institute, Guangzhou University of Chinese Medicine, Guangzhou, 510405, China
| | - Jiali Li
- Piwei Institute, Guangzhou University of Chinese Medicine, Guangzhou, 510405, China
| | - Nannan Sun
- Piwei Institute, Guangzhou University of Chinese Medicine, Guangzhou, 510405, China
| | - Zhibin Cheng
- College of Animal Science and Technology, Yunnan Agricultural University, Kunming, Yunnan, 650201, China
| | - Wenfeng Guo
- Piwei Institute, Guangzhou University of Chinese Medicine, Guangzhou, 510405, China
| | - Yanwu Li
- Piwei Institute, Guangzhou University of Chinese Medicine, Guangzhou, 510405, China
| | - Yong Gao
- Piwei Institute, Guangzhou University of Chinese Medicine, Guangzhou, 510405, China
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Søfteland JM, Casselbrant A, Biglarnia AR, Linders J, Hellström M, Pesce A, Padma AM, Jiga LP, Hoinoiu B, Ionac M, Oltean M. Intestinal Preservation Injury: A Comparison Between Rat, Porcine and Human Intestines. Int J Mol Sci 2019; 20:ijms20133135. [PMID: 31252560 PMCID: PMC6650817 DOI: 10.3390/ijms20133135] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2019] [Accepted: 06/25/2019] [Indexed: 02/07/2023] Open
Abstract
Advanced preservation injury (PI) after intestinal transplantation has deleterious short- and long-term effects and constitutes a major research topic. Logistics and costs favor rodent studies, whereas clinical translation mandates studies in larger animals or using human material. Despite diverging reports, no direct comparison between the development of intestinal PI in rats, pigs, and humans is available. We compared the development of PI in rat, porcine, and human intestines. Intestinal procurement and cold storage (CS) using histidine-tryptophan-ketoglutarate solution was performed in rats, pigs, and humans. Tissue samples were obtained after 8, 14, and 24 h of CS), and PI was assessed morphologically and at the molecular level (cleaved caspase-3, zonula occludens, claudin-3 and 4, tricellulin, occludin, cytokeratin-8) using immunohistochemistry and Western blot. Intestinal PI developed slower in pigs compared to rats and humans. Tissue injury and apoptosis were significantly higher in rats. Tight junction proteins showed quantitative and qualitative changes differing between species. Significant interspecies differences exist between rats, pigs, and humans regarding intestinal PI progression at tissue and molecular levels. These differences should be taken into account both with regards to study design and the interpretation of findings when relating them to the clinical setting.
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Affiliation(s)
- John Mackay Søfteland
- The Transplant Institute, Sahlgrenska University Hospital, 413 45 Gothenburg, Sweden
- Laboratory for Transplantation and Regenerative Medicine, Institute of Clinical Sciences, Sahlgrenska Academy at the University of Gothenburg, Sahlgrenska Science Park Medicinaregatan 8, 413 90 Gothenburg, Sweden
| | - Anna Casselbrant
- Department of Gastrosurgical Research and Education, Institute of Clinical Sciences, Sahlgrenska Academy at the University of Gothenburg, Sahlgrenska University Hospital, 41345 Gothenburg, Sweden
| | - Ali-Reza Biglarnia
- Department of Transplantation, Skåne University Hospital, 205 02 Malmö, Sweden
| | - Johan Linders
- Department of Transplantation, Skåne University Hospital, 205 02 Malmö, Sweden
| | - Mats Hellström
- Laboratory for Transplantation and Regenerative Medicine, Institute of Clinical Sciences, Sahlgrenska Academy at the University of Gothenburg, Sahlgrenska Science Park Medicinaregatan 8, 413 90 Gothenburg, Sweden
| | - Antonio Pesce
- Department of Medical and Surgical Sciences and Advanced Technologies, University of Catania, Via Santa Sofia 86, 95123 Catania, Italy
| | - Arvind Manikantan Padma
- Laboratory for Transplantation and Regenerative Medicine, Institute of Clinical Sciences, Sahlgrenska Academy at the University of Gothenburg, Sahlgrenska Science Park Medicinaregatan 8, 413 90 Gothenburg, Sweden
| | - Lucian Petru Jiga
- Department for Plastic, Aesthetic, Reconstructive and Hand Surgery, Evangelisches Krankenhaus Oldenburg, Medical Campus University of Oldenburg, Steinweg 13-17, 26122 Oldenburg, Germany
| | - Bogdan Hoinoiu
- Pius Branzeu Center for Laparoscopic Surgery and Microsurgery, University of Medicine and Pharmacy, P-ta. E. Murgu 2, 300041 Timisoara, Romania
| | - Mihai Ionac
- Pius Branzeu Center for Laparoscopic Surgery and Microsurgery, University of Medicine and Pharmacy, P-ta. E. Murgu 2, 300041 Timisoara, Romania
| | - Mihai Oltean
- The Transplant Institute, Sahlgrenska University Hospital, 413 45 Gothenburg, Sweden.
- Laboratory for Transplantation and Regenerative Medicine, Institute of Clinical Sciences, Sahlgrenska Academy at the University of Gothenburg, Sahlgrenska Science Park Medicinaregatan 8, 413 90 Gothenburg, Sweden.
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Mahdavi R, Osmanyan AK, Fisinin VI, Ghazi Harsini S, Arkhipova AL, Shevyakov AN, Kovalchuk SN, Kosovsky GY. Impact of mash and crumble diets on intestinal amino acids transporters, intestinal morphology and pancreatic enzyme activity of broilers. J Anim Physiol Anim Nutr (Berl) 2018; 102:1266-1273. [PMID: 30152003 DOI: 10.1111/jpn.12956] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2017] [Revised: 06/10/2018] [Accepted: 06/15/2018] [Indexed: 12/23/2022]
Abstract
The objective of this study was to evaluate effects of mash and crumble pre-starter diets on pancreatic enzyme activity, intestinal morphology, gene expression of intestinal peptide and amino acid (AA) transporters of broilers. Broilers in battery cages were assigned to different feed forms of pre-starter diet from 1 to 10 days of age. Significantly increased body weight gain (BWG), feed intake (FI) and lowered FCR were observed in birds fed crumble pre-starter diet (CPD, p < 0.05). Feed forms had no effect on whole and small intestine length, but relative intestinal length and relative small intestinal length significantly increased in the broilers fed a mash pre-starter diet (MPD, p < 0.05). Feeding CPD increased the weight of pancreas (p < 0.05), but relative weight of the pancreas was not influenced by treatments. Pancreatic protease and amylase activities significantly increased in the broilers fed CPD (p < 0.05) but the activity of lipase was not influenced. Crypt depth (CD) and villus height (VH) were higher in broilers fed CPD (p < 0.05) but villus width (VW), villus surface area (VSA) and villus height-to-crypt depth ratio (VCR) were not influenced by treatments. mRNA levels for peptide transporter 1 (PepT1), Na+ -independent cationic AA transporter1 (CAT1), Na+ -independent cationic and Na+ -dependent neutral AA transporter 1 (y+ LAT1) and Na+ -dependent neutral AA transporter (B0 AT) were lower in birds fed CPD (p < 0.05). There were no differences in mRNA abundance of Na+ -independent cationic and zwitterionic AA transporter (b0,+ AT) among treatments. Overall, the present data showed that feeding crumble diet during first 10 days of age, through higher FI, enhanced intestinal histomorphology, increased digestive enzyme activity is beneficial to growth performance of broilers. Indeed, dietary form can be an important factor in the expression of jejunal transporters.
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Affiliation(s)
- Reza Mahdavi
- Faculty of Animal Science and Biology, Special Animal Husbandry Department, Moscow Timiryazev Agricultural Academy, Moscow, Russia
| | - Artyom Karlovich Osmanyan
- Faculty of Animal Science and Biology, Special Animal Husbandry Department, Moscow Timiryazev Agricultural Academy, Moscow, Russia
| | | | - Shahab Ghazi Harsini
- Faculty of Agriculture, Department of Animal Science, Razi University, Kermanshah, Iran
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15
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Abstract
Malnutrition contributes significantly to death and illness worldwide and especially to the deaths of children younger than 5 years. The relation between intestinal changes in malnutrition and morbidity and mortality has not been well characterized; however, recent research indicates that the functional and morphologic changes of the intestine secondary to malnutrition itself contribute significantly to these negative clinical outcomes and may be potent targets of intervention. The aim of this review was to summarize current knowledge of experimental and clinically observed changes in the intestine from malnutrition preclinical models and human studies. Limited clinical studies have shown villous blunting, intestinal inflammation, and changes in the intestinal microbiome of malnourished children. In addition to these findings, experimental data using various animal models of malnutrition have found evidence of increased intestinal permeability, upregulated intestinal inflammation, and loss of goblet cells. More mechanistic studies are urgently needed to improve our understanding of malnutrition-related intestinal dysfunction and to identify potential novel targets for intervention.
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Di Giovanni V, Bourdon C, Wang DX, Seshadri S, Senga E, Versloot CJ, Voskuijl W, Semba RD, Trehan I, Moaddel R, Ordiz MI, Zhang L, Parkinson J, Manary MJ, Bandsma RH. Metabolomic Changes in Serum of Children with Different Clinical Diagnoses of Malnutrition. J Nutr 2016; 146:2436-2444. [PMID: 27807038 PMCID: PMC5118769 DOI: 10.3945/jn.116.239145] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2016] [Revised: 08/28/2016] [Accepted: 10/04/2016] [Indexed: 12/04/2022] Open
Abstract
Background: Mortality in children with severe acute malnutrition (SAM) remains high despite standardized rehabilitation protocols. Two forms of SAM are classically distinguished: kwashiorkor and marasmus. Children with kwashiorkor have nutritional edema and metabolic disturbances, including hypoalbuminemia and hepatic steatosis, whereas marasmus is characterized by severe wasting. The metabolic changes underlying these phenotypes have been poorly characterized, and whether homeostasis is achieved during hospital stay is unclear. Objectives: We aimed to characterize metabolic differences between children with marasmus and kwashiorkor at hospital admission and after clinical stabilization and to compare them with stunted and nonstunted community controls. Methods: We studied children aged 9–59 mo from Malawi who were hospitalized with SAM (n = 40; 21 with kwashiorkor and 19 with marasmus) or living in the community (n = 157; 78 stunted and 79 nonstunted). Serum from patients with SAM was obtained at hospital admission and 3 d after nutritional stabilization and from community controls. With the use of targeted metabolomics, 141 metabolites, including amino acids, biogenic amines, acylcarnitines, sphingomyelins, and phosphatidylcholines, were measured. Results: At admission, most metabolites (128 of 141; 91%) were lower in children with kwashiorkor than in those with marasmus, with significant differences in several amino acids and biogenic amines, including those of the kynurenine-tryptophan pathway. Several phosphatidylcholines and some acylcarnitines also differed. Patients with SAM had profiles that were profoundly different from those of stunted and nonstunted controls, even after clinical stabilization. Amino acids and biogenic amines generally improved with nutritional rehabilitation, but most sphingomyelins and phosphatidylcholines did not. Conclusions: Children with kwashiorkor were metabolically distinct from those with marasmus, and were more prone to severe metabolic disruptions. Children with SAM showed metabolic profiles that were profoundly different from stunted and nonstunted controls, even after clinical stabilization. Therefore, metabolic recovery in children with SAM likely extends beyond discharge, which may explain the poor long-term outcomes in these children. This trial was registered at isrctn.org as ISRCTN13916953.
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Affiliation(s)
| | | | | | | | | | | | - Wieger Voskuijl
- Department of Pediatrics and Child Health, and.,Global Child Health Group, Emma Children's Hospital, Academic Medical Centre, University of Amsterdam, Netherlands
| | - Richard D Semba
- Wilmer Eye Institute, John Hopkins University School of Medicine, Baltimore, MD
| | - Indi Trehan
- Department of Pediatrics and Child Health, and.,National Institute of Aging, NIH, Baltimore, MD
| | | | - M Isabel Ordiz
- Department of Pediatrics, Washington University in St. Louis, St. Louis, MO; and
| | - Ling Zhang
- Department of Physiology and Experimental Medicine
| | - John Parkinson
- Program in Molecular Structure and Function.,Department of Biochemistry and Department of Molecular Genetics, University of Toronto, Toronto, Canada
| | - Mark J Manary
- School of Public Health and Family Medicine, College of Medicine, University of Malawi, Blantyre, Malawi.,Department of Pediatrics, Washington University in St. Louis, St. Louis, MO; and
| | - Robert Hj Bandsma
- Department of Physiology and Experimental Medicine, .,Division of Gastroenterology, Hepatology and Nutrition, and.,Centre for Global Child Health, Hospital for Sick Children, Toronto, Canada.,Department of Biomedical Sciences
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17
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Interrelationships between gut morphology and faeces consistency in newly weaned piglets. ACTA ACUST UNITED AC 2016. [DOI: 10.1017/s1357729800053686] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
AbstractA total of 104 weanling piglets was used to study the interrelationships between faeces consistency and mucosal integrity, as assessed by specific aminopeptidase and isomaltase-sucrase activity, villus height and crypt depth. Piglets were weaned at 26 (s.d. 1·4) days of age, weighing 8·4 (s.d. 0·70) kg. On the day of weaning (day 0), dissection was performed on one group of eight piglets. The remaining piglets were given restricted amounts of diets containing different protein sources. However, during the first 7 days post weaning 72% of the piglets ate on average less than 0·9 of the amount offered and thus actually had ad libitum access to food. On days 3 or 7 post weaning pigs were weighed and euthanased. Diet composition did not effect small intestine integrity and the data were pooled for further analysis. The weight of the stomach, large intestine and pancreas increased with time post weaning (P < 0·001). Small intestine weight decreased from day 0 to 3 and was increased again on day 7, exceeding the pre-weaning value (P < 0·001). Isomaltase-sucrase and aminopeptidase activities were decreased on days 3 and 7 when compared with day 0. Villus height was decreased after weaning, followed by an increase on day 7 post weaning at the proximal small intestine, but by a further decrease at the mid small intestine (P < 0·001). Crypt depth was increased after weaning (P < 0·001). Faeces consistency was scored twice a day on a scale from 0 to 3 with increasing liquid nature. The average percentage of days during which piglets had more-liquid faeces was 26%. During the 1st week post weaning, 73% of the piglets showed a faeces score of 2 during at least 1 day. Villus height was positively correlated with food intake level, brush-border enzyme activity and dry matter content of the chyme. Villus height was negatively correlated with more-liquid faeces. Crypt depth was positively associated with the weight of various parts of the gastro-intestinal tract. It is concluded that this study supports the concept that food intake by weaned piglets determines villus height in the small intestine and brush-border enzyme production which in turn determine the risk of diarrhoea development.
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18
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Yang H, Xiong X, Wang X, Tan B, Li T, Yin Y. Effects of Weaning on Intestinal Upper Villus Epithelial Cells of Piglets. PLoS One 2016; 11:e0150216. [PMID: 27022727 PMCID: PMC4811545 DOI: 10.1371/journal.pone.0150216] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2015] [Accepted: 02/10/2016] [Indexed: 12/25/2022] Open
Abstract
The intestinal upper villus epithelial cells represent the differentiated epithelial cells and play key role in digesting and absorbing lumenal nutrients. Weaning stress commonly results in a decrease in villus height and intestinal dysfunction in piglets. However, no study have been conducted to test the effects of weaning on the physiology and functions of upper villus epithelial cells. A total of 40 piglets from 8 litters were weaned at 14 days of age and one piglet from each litter was killed at 0 d (w0d), 1 d (w1d), 3 d (w3d), 5 d (w5d), and 7 d (w7d) after weaning, respectively. The upper villus epithelial cells in mid-jejunum were isolated using the distended intestinal sac method. The expression of proteins in upper villus epithelial cells was analyzed using the isobaric tags for relative and absolute quantification or Western blotting. The expression of proteins involved in energy metabolism, Golgi vesicle transport, protein amino acid glycosylation, secretion by cell, transmembrane transport, ion transport, nucleotide catabolic process, translational initiation, and epithelial cell differentiation and apoptosis, was mainly reduced during the post-weaning period, and these processes may be regulated by mTOR signaling pathway. These results indicated that weaning inhibited various cellular processes in jejunal upper villus epithelial cells, and provided potential new directions for exploring the effects of weaning on the functions of intestine and improving intestinal functions in weaning piglets.
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Affiliation(s)
- Huansheng Yang
- Chinese Academy of Science, Institute of Subtropical Agriculture, Research Center for Healthy Breeding of Livestock and Poultry, Hunan Engineering and Research Center of Animal and Poultry Science and Key Laboratory for Agroecological Processes in Subtropical Region, Scientific Observation and Experimental Station of Animal Nutrition and Feed Science in South-Central, Ministry of Agriculture, Hunan, China
- School of Life Sciences, Hunan Normal University, Changsha, China
- Fujian Aonong Biotechnology Corporation, Xiamen, Fujian, China
| | - Xia Xiong
- Chinese Academy of Science, Institute of Subtropical Agriculture, Research Center for Healthy Breeding of Livestock and Poultry, Hunan Engineering and Research Center of Animal and Poultry Science and Key Laboratory for Agroecological Processes in Subtropical Region, Scientific Observation and Experimental Station of Animal Nutrition and Feed Science in South-Central, Ministry of Agriculture, Hunan, China
| | - Xiaocheng Wang
- Chinese Academy of Science, Institute of Subtropical Agriculture, Research Center for Healthy Breeding of Livestock and Poultry, Hunan Engineering and Research Center of Animal and Poultry Science and Key Laboratory for Agroecological Processes in Subtropical Region, Scientific Observation and Experimental Station of Animal Nutrition and Feed Science in South-Central, Ministry of Agriculture, Hunan, China
| | - Bie Tan
- Chinese Academy of Science, Institute of Subtropical Agriculture, Research Center for Healthy Breeding of Livestock and Poultry, Hunan Engineering and Research Center of Animal and Poultry Science and Key Laboratory for Agroecological Processes in Subtropical Region, Scientific Observation and Experimental Station of Animal Nutrition and Feed Science in South-Central, Ministry of Agriculture, Hunan, China
| | - Tiejun Li
- Chinese Academy of Science, Institute of Subtropical Agriculture, Research Center for Healthy Breeding of Livestock and Poultry, Hunan Engineering and Research Center of Animal and Poultry Science and Key Laboratory for Agroecological Processes in Subtropical Region, Scientific Observation and Experimental Station of Animal Nutrition and Feed Science in South-Central, Ministry of Agriculture, Hunan, China
| | - Yulong Yin
- Chinese Academy of Science, Institute of Subtropical Agriculture, Research Center for Healthy Breeding of Livestock and Poultry, Hunan Engineering and Research Center of Animal and Poultry Science and Key Laboratory for Agroecological Processes in Subtropical Region, Scientific Observation and Experimental Station of Animal Nutrition and Feed Science in South-Central, Ministry of Agriculture, Hunan, China
- School of Life Sciences, Hunan Normal University, Changsha, China
- * E-mail:
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19
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Incharoen T, Yamauchi KE, Erikawa T, Gotoh H. Histology of intestinal villi and epithelial cells in chickens fed low-crude protein or low-crude fat diets. ITALIAN JOURNAL OF ANIMAL SCIENCE 2016. [DOI: 10.4081/ijas.2010.e82] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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20
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Abstract
Dietary nutrients are essential for gastrointestinal (GI) growth and function, and nutritional support of GI growth and development is a significant component of infant care. For healthy full-term neonates, nutritional provisions of the mother's milk and/or formula will support normal maturation of structure and function of the GI tract in most infants. The composition of breast milk affects GI barrier function and development of a competent mucosal immune system. The functional nutrients and other bioactive components of milk support a microenvironment for gut protection and maturation. However, premature infants struggle with feeding tolerance impairing normal GI function, leading to intestinal dysfunction and even death. The high prevalence worldwide of enteric diseases and dysfunction in neonates has led to much interest in understanding the role of nutrients and food components in the establishment and maintenance of a functioning GI tract. Neonates who do not receive enteral feeding as either mother's milk or formula are supported by total parental nutrition (TPN). The lack of enteral nutrition can compound intestinal dysfunction, leading to high morbidity and mortality in intestinally compromised infants. Reciprocally, enteral stimulation of an immature GI tract can also compound intestinal dysfunction. Therefore, further understanding of nutrient interactions with the mucosa is necessary to define nutritional requirements of the developing GI tract to minimize intestinal complications and infant morbidity. Piglet models of intestinal development and function are similar to humans, and this review summarizes recent findings regarding nutrient requirements for growth and maintenance of intestinal health. In particular, this article reviews the role of specific amino acids (arginine, glutamine, glutamate, and threonine), fatty acids (long chain polyunsaturated, medium chain, and short chain), various prebiotic carbohydrates (short-chain fructo-oligosaccharide, fructo--oligosaccharide, lacto-N-neotetraose, human milk oligosaccharide, polydextrose, and galacto-oligosaccharide), and probiotics that have been examined in the suckling piglet model of intestinal health.
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Affiliation(s)
- Sheila K Jacobi
- Laboratory of Developmental Nutrition, Department of Animal Science, North Carolina State University, Raleigh, NC, USA
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21
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Jacobi SK, Moeser AJ, Corl BA, Harrell RJ, Blikslager AT, Odle J. Dietary long-chain PUFA enhance acute repair of ischemia-injured intestine of suckling pigs. J Nutr 2012; 142:1266-71. [PMID: 22623387 PMCID: PMC7289324 DOI: 10.3945/jn.111.150995] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Infant formula companies have been fortifying formulas with long-chain PUFA for 10 y. Long-chain PUFA are precursors of prostanoids, which stimulate recovery of intestinal barrier function. Supplementation of milk with PUFA increases the content of arachidonic acid (ARA) in enterocyte membranes; however, the effect of this enrichment on intestinal repair is not known. The objective of these experiments was to investigate the effect of supplemental ARA on intestinal barrier repair in ischemia-injured porcine ileum. One-day-old pigs (n = 24) were fed a milk-based formula for 10 d. Diets contained no PUFA (0% ARA), 0.5% ARA, 5% ARA, or 5% EPA of total fatty acids. Following dietary enrichment, ilea were subjected to in vivo ischemic injury by clamping the local mesenteric blood supply for 45 min. Following the ischemic period, control (nonischemic) and ischemic loops were mounted on Ussing chambers. Transepithelial electrical resistance (TER) was measured over a 240-min recovery period. Ischemia-injured ileum from piglets fed 5% ARA (61.0 ± 14%) exhibited enhanced recovery compared with 0% ARA (16 ± 14) and 0.5% ARA (22.1 ± 14)-fed pigs. Additionally, ischemia-injured ileum from 5% EPA (51.3 ± 14)-fed pigs had enhanced recovery compared with 0% ARA-fed pigs (P < 0.05). The enhanced TER recovery response observed with ischemia-injured 5% ARA supplementation was supported by a significant reduction in mucosal-to-serosal flux of (3)H-mannitol and (14)C-inulin compared with all other ischemia-injured dietary groups (P < 0.05). A histological evaluation of ischemic ilea from piglets fed the 5% ARA showed reduced histological lesions after ischemia compared with the other dietary groups (P < 0.05). These data demonstrate that feeding elevated levels of long-chain PUFA enhances acute recovery of ischemia-injured porcine ileum.
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Affiliation(s)
- Sheila K Jacobi
- Laboratory of Developmental Nutrition, Department of Animal Science, North Carolina State University, Raleigh, NC, USA
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22
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Morris HJ, Carrillo OV, Alonso ME, Bermúdez RC, Almarales Á, Llauradó G, Lebeque Y, Fontaine R. Oral Administration of an Enzymatic Protein Hydrolysate from the Green Microalga Chlorella vulgaris Enhances the Nutritional Recovery of Malnourished Mice. J Med Food 2011; 14:1583-9. [DOI: 10.1089/jmf.2010.0283] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Humberto J. Morris
- Center for Studies on Industrial Biotechnology, Faculty of Natural Sciences, University of Oriente, Santiago de Cuba, Cuba
| | | | | | - Rosa C. Bermúdez
- Center for Studies on Industrial Biotechnology, Faculty of Natural Sciences, University of Oriente, Santiago de Cuba, Cuba
| | - Ángel Almarales
- Center of Technological Applications for Sustainable Development, Guantánamo, Cuba
| | - Gabriel Llauradó
- Center for Studies on Industrial Biotechnology, Faculty of Natural Sciences, University of Oriente, Santiago de Cuba, Cuba
| | - Yamila Lebeque
- Center for Studies on Industrial Biotechnology, Faculty of Natural Sciences, University of Oriente, Santiago de Cuba, Cuba
| | - Roberto Fontaine
- Center for Studies on Industrial Biotechnology, Faculty of Natural Sciences, University of Oriente, Santiago de Cuba, Cuba
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Abstract
AbstractThe present study was designed to delineate the effect of Giardia duodenalis in malnourished and renourished BALB/c mice. Control and renourished mice were fed with a standard pellet diet while malnourished mice were fed with a low protein (4.3 %) diet both before and after being challenged orally with actively growing G. duodenalis trophozoites. It was observed that malnourished mice had a greater severity and longer duration of Giardia infection compared with renourished mice. These malnourished mice also had less body mass but higher cyst and trophozoite counts. Malnourished mice infected with Giardia had significantly decreased level of total serum proteins, albumin, globulins, hemoglobin, leukocyte, and differential leukocyte counts compared with renourished mice. From the data it is concluded that protein malnutrition profoundly affects the anthropometric and physiological parameters of the body indicating greater susceptibility and severity of the disease.
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Shukla G, Sidhu RK. Lactobacillus casei as a probiotic in malnourished Giardia lamblia-infected mice: a biochemical and histopathological study. Can J Microbiol 2011; 57:127-35. [PMID: 21326354 DOI: 10.1139/w10-110] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
The study describes the in vivo activity of Lactobacillus casei in malnourished Giardia lamblia-infected BALB/c mice. By experimentation, it was found that daily administration of the probiotic 7 days before inoculation with Giardia trophozoites in malnourished mice efficiently reduced both the severity and duration of giardiasis. More specifically, excretion of Giardia cysts and trophozoites counts were reduced, while faecal lactobacilli counts increased significantly in probiotic-fed malnourished mice, compared with control mice. Interestingly, it was also observed that oral feeding of the probiotic to malnourished mice abrogated all the anthropometric and biochemical anomalies. Histologically, morphological and cellular alteration of microvillus membrane integrity revealed that probiotic administration ameliorated the mucosal damage in malnourished, probiotic-inoculated, Giardia-infected mice compared with the severe microvillus atrophy, œdematous and vacuolated epithelial cells, and ileitis in malnourished Giardia-infected mice. The results clearly show the antigiardial effect of the probiotic in vivo by modulating the gut cells to inhibit the colonization and multiplication of Giardia trophozoites, thus reducing the severity and duration of murine giardiasis.
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Affiliation(s)
- Geeta Shukla
- Department of Microbiology, Panjab University, Chandigarh 160014, India.
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25
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Morris HJ, Carrillo OV, Llauradó G, Alonso ME, Bermúdez RC, Lebeque Y, Fontaine R, Soria NE, Venet G. Effect of starvation and refeeding on biochemical and immunological status of Balb/c mice: an experimental model of malnutrition. Immunopharmacol Immunotoxicol 2010; 33:438-46. [PMID: 21105863 DOI: 10.3109/08923973.2010.531732] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
CONTEXT Although new methods for the induction of malnutrition disorders in laboratory animals have been developed, the bulk of the models described in the literature are essentially based on dietary restriction/starvation principle. In this context, little data are available about the metabolic and the immune system parameters of Balb/c mice under starvation/refeeding. OBJECTIVE This study examined the effects of starvation and refeeding on the biochemical and immunological status of undernourished Balb/c mice. METHODS Female Balb/c mice, weighing 20 g, were starved for 3 days and then refed with commercial pelleted diet for 8 days. The variables considered were as follows: body weight; serum protein and amino acid concentrations; liver protein content, and cholinesterase and arginase activities; jejunal protein and DNA contents as well as oligosaccharidase levels; hematological parameters (bone marrow and peripheral blood cellularity); peritoneal macrophage activation; and humoral and cell-mediated immune functions. RESULTS Profound alterations in both biochemical and immunological conditions appeared after the starvation period. Refeeding resulted in the normalization of serum albumin levels, the intestinal DNA content and the gut-mucosal associated enzymatic activities, the blood lymphocyte counts, and the number of peritoneal macrophages. The markers of liver metabolic function (cholinesterase and arginase activities), and those of bone marrow hemopoiesis and the adaptive immune response (T-dependent antibody titres and delayed-type hypersensitivity response) remained altered after refeeding compared with control mice. CONCLUSION These findings suggest that fasted mice can be used as an animal model of acute starvation that might prove useful in evaluating the effectiveness of nutritional and immunopharmacological interventions.
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Affiliation(s)
- Humberto J Morris
- Faculty of Natural Sciences, Center for Studies on Industrial Biotechnology, University of Oriente, Ave. Patricio Lumumba s/n, Santiago de Cuba 5, CP 90500, Cuba.
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Maneewan B, Yamauchi K. Recovery of duodenal villi and cells in chickens refed protein, carbohydrate and fat. Br Poult Sci 2010; 46:415-23. [PMID: 16268098 DOI: 10.1080/00071660500158105] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
1. To clarify how histological recovery of villi and cells would be affected after refeeding single nutrients such as protein, carbohydrate and fat, male chickens were divided as follows: (1) intact control fed ad libitum a commercial finisher mash diet (CP, 140 g; ME, 11.71 MJ/kg, ALM), (2) 3 d feed withdrawal (FW), (3) FW followed by one day ad libitum free access to the mash diet (FW-ALM), and FW followed by one day force-feeding of (4) a commercial finisher pellet diet (FW-FFM) and an isocaloric diet of (5) a protein (FW-FFP), (6) a carbohydrate (FW-FFC) or (7) a fat (FW-FFF). 2. After refeeding, the formula diet groups increased in villus height and villus area and tended to increase in cell area and cell mitosis. Furthermore, flat cells on the villus tip in the F group developed to dome-shaped cells. This suggests that nutritionally well-balanced diets can induce histological recovery at villus and cellular levels. 3. Not all of the single nutrient groups recovered to the extent of the formula diet groups in all light microscopic variables after refeeding, suggesting that a single nutrient cannot induce histological recovery of the villus. 4. However, the dome-shaped cells were more distributed on the villus tip in these single nutrient groups than in the well-balanced formula diet groups, although cell diameter of the former groups was smaller than that of the latter. This suggests that the single nutrients would be effectively absorbed from cells and can induce histological recovery at the cellular level.
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Affiliation(s)
- B Maneewan
- Laboratory of Animal Science, Faculty of Agriculture, Kagawa University, Miki-cho, Kagawa-ken, Japan
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LOH TC, THANH NT, FOO HL, HAIR-BEJO M, AZHAR BK. Feeding of different levels of metabolite combinations produced byLactobacillus plantarumon growth performance, fecal microflora, volatile fatty acids and villi height in broilers. Anim Sci J 2010; 81:205-14. [DOI: 10.1111/j.1740-0929.2009.00701.x] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Thanh NT, Loh TC, Foo HL, Hair-Bejo M, Azhar BK. Effects of feeding metabolite combinations produced by Lactobacillus plantarum on growth performance, faecal microbial population, small intestine villus height and faecal volatile fatty acids in broilers. Br Poult Sci 2009; 50:298-306. [PMID: 19637029 DOI: 10.1080/00071660902873947] [Citation(s) in RCA: 53] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
1. Four combinations of metabolites produced from strains of Lactobacillus plantarum were used to study the performance of broiler chickens. 2. A total of 432 male Ross broilers were raised from one-day-old to 42 d of age in deep litter pens (12 birds/pen). These birds were divided into 6 groups and fed on different diets: (i) standard maize-soybean-based diet (negative control); (ii) standard maize-soybean-based diet + Neomycin and Oxytetracycline (positive control); (iii) standard maize-soybean-based diet + 0.3% metabolite combination of Lactobacillus plantarum RS5, RI11, RG14 and RG11 strains (com3456); (iv) standard maize-soybean-based diet + 0.3% metabolite combination of L. plantarum TL1, RI11 and RG11 (Com246); (v) standard maize-soybean-based diet + 0.3% metabolite combination of L. plantarum TL1, RG14 and RG11 (Com256) and (vi) standard maize-soybean-based diet + 0.3% metabolite combination of L. plantarum TL1, RS5, RG14 and RG11 (Com2356). 3. Higher final body weight, weight gain, average daily gain and lower feed conversion ratio were found in all 4 treated groups. 4. The addition of a metabolite combination supplementation also increased faecal lactic acid bacteria population, small intestine villus height and faecal volatile fatty acids and faecal Enterobacteriaceae population.
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Affiliation(s)
- N T Thanh
- Department of Animal Science, Faculty of Agriculture, Selangor, Malaysia
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Haritova AM, Fink-Gremmels J. A simulation model for the prediction of tissue:plasma partition coefficients for drug residues in natural casings. Vet J 2009; 185:278-84. [PMID: 19709908 DOI: 10.1016/j.tvjl.2009.06.007] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2009] [Revised: 06/07/2009] [Accepted: 06/08/2009] [Indexed: 10/20/2022]
Abstract
Tissue residues arise from the exposure of animals to undesirable substances in animal feed materials and drinking water and to the therapeutic or zootechnical use of veterinary medicinal products. In the framework of this study, an advanced toxicokinetic model was developed to predict the likelihood of residue disposition of licensed veterinary products in natural casings used as envelope for a variety of meat products, such as sausages. The model proved suitable for the calculation of drug concentrations in the muscles of pigs, cattle and sheep, the major species of which intestines are used. On the basis of drug concentrations in muscle tissue, the model allowed a prediction of intestinal concentrations and residues in the intestines that remained equal to or below the concentrations in muscle tissue, the major consumable product of slaughter animals. Subsequently, residues in intestines were found to be below the maximum residue limit value for muscle tissue when drugs were used according to prescribed procedures, including the application of appropriate withdrawal times. Considering the low consumption of natural casings (which represents only about 1-2% of the weight of a normal sausage), it was concluded that the exposure to drug residues from casings is negligible.
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Affiliation(s)
- Aneliya Milanova Haritova
- Department of Pharmacology, Veterinary Physiology and Physiological Chemistry, Faculty of Veterinary Medicine, Trakia University, Bulgaria
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Ünsal H, Balkaya M, Biyik H, Ünsal C, Başbülbül G, Poyrazoğlu E, Kozaci LD. Time-dependent effects of dietary qualitative and quantitative protein malnutrition on some members of the cecal microbiota in male Wistar rats. MICROBIAL ECOLOGY IN HEALTH AND DISEASE 2009. [DOI: 10.1080/08910600802688860] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Hümeyra Ünsal
- Faculty of Veterinary Medicine, Department of Physiology
| | | | - Halil Biyik
- Faculty of Art and Sciences, Department of Biology
| | - Cengiz Ünsal
- Faculty of Veterinary Medicine, Department of Physiology
| | | | | | - Leyla Di˙dem Kozaci
- Faculty of Medicine, Department of Biochemistry, Adnan Menderes University, Işιklι, Aydιn, Turkey
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31
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Effects of a charcoal powder–wood vinegar compound solution in piglets for raw pigeon pea seed meal. Animal 2008; 2:366-74. [DOI: 10.1017/s1751731107001243] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Nieto N, Mesa MD, López-Pedrosa JM, Torres MI, Ríos A, Suárez MD, Gil A. Contribution of polyunsaturated fatty acids to intestinal repair in protein-energy malnutrition. Dig Dis Sci 2007; 52:1485-96. [PMID: 17393329 DOI: 10.1007/s10620-007-8100-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/19/2005] [Accepted: 07/12/2005] [Indexed: 12/09/2022]
Abstract
The aim of this study was to assess the effect of polyunsaturated fatty acids supplied in the diet on intestinal mucosa repair in a rat model of protein-energy malnutrition. Rats were fed either a standard semipurified diet or the same diet containing lactose as the only source of carbohydrate to cause protein-energy malnutrition. Diarrhea was induced within 24 h and was maintained for 2 weeks, after which both groups of rats were fed for 1 week either the standard diet or the standard diet supplemented with different sources of fatty acids, such as olive oil (OO), fish oil (FO), and purified phospholipids from pig brain (BPL). The lactose-enriched diet caused loss of enterocyte microvilli, lymphocyte infiltration, supranuclear cytoplasmic vesiculation, decreased number of goblet cells, low-density enlarged mitochondria, and less cristae. The FO diet improved the pathology score according to the histological and ultrastructural analysis, with an increased number of goblet cells, ratio of microvilli length to crypt depth, and percentage of intraepithelial lymphocytes compared to those found in rats with protein-energy malnutrition. We previously reported that chronic diarrhea depletes the antioxidant defense in rat intestine; we now show that both, the FO and the BPL diets, increase GSH levels in colon and that some antioxidant enzyme activities vary according to the source of fatty acids, with higher catalase and superoxide dismutase by the FO diet in jejunum, increased catalase by the BPL diet in jejunum, and elevated glutathione peroxidase by the OO diet in colon. The fatty acid profile of intestinal mucosa reflects the source of fat in the diet, with the lowest ratio of n-6/n-3 for rats fed the FO diet. These results suggest that dietary polyunsaturated fatty acids, particularly those in the n-3 series, may play an important role in intestinal repair in chronic diarrhea due to protein-energy malnutrition.
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Affiliation(s)
- Natalia Nieto
- Department of Biochemistry and Molecular Biology, School of Pharmacy, University of Granada, Campus Universitario de Cartuja s/n, Granada, Spain
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López-Pedrosa JM, Manzano M, Baxter JH, Rueda R. N-acetyl-L-glutamine, a liquid-stable source of glutamine, partially prevents changes in body weight and on intestinal immunity induced by protein energy malnutrition in pigs. Dig Dis Sci 2007; 52:650-8. [PMID: 17253138 DOI: 10.1007/s10620-006-9500-y] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/25/2006] [Accepted: 06/21/2006] [Indexed: 01/16/2023]
Abstract
The goal of this study was to evaluate the preventive effect of free glutamine versus N-acetyl-L-glutamine, a liquid-stable source of glutamine, on gut damage induced by protein energy malnutrition in pigs. Healthy pigs (n = 6) were fed a liquid formula for 30 days. Three subgroups of malnourished pigs (n = 6) received daily 20% of the food intake recorded in control group, supplemented with calcium caseinate, glutamine, or N-acetyl-L-glutamine. Body weight was recorded, and small intestinal samples were evaluated for biochemical and immunologic parameters. Suppression in body weight gain was significantly lower in pigs fed with N-acetyl-L-glutamine than in the rest of malnourished pigs. Total number of lymphocytes, CD21+ B cells and CD4+ T cells in ileal Peyer patches were not significantly different in malnourished pigs fed with N-acetyl-L-glutamine and in healthy pigs. In conclusion, N-acetyl-L-glutamine has a moderate protective effect, partially preventing changes induced by protein energy malnutrition.
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Affiliation(s)
- José M López-Pedrosa
- Strategic R&D, Abbott Nutrition International, Abbott Laboratories, Camino de Purchil 68, 18004 Granada, Spain
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34
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Montagne L, Boudry G, Favier C, Le Huërou-Luron I, Lallès JP, Sève B. Main intestinal markers associated with the changes in gut architecture and function in piglets after weaning. Br J Nutr 2007; 97:45-57. [PMID: 17217559 DOI: 10.1017/s000711450720580x] [Citation(s) in RCA: 153] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
We analysed the spatio-temporal sequence of events concerning the morphology, physiology and ecology of the gut of piglets during the 2 weeks following weaning, in order to provide a limited number of variables that could be relevant markers of the gut post-weaning changes. An experiment was conducted on sixty piglets fasted for 2 d, then administered a weaning diet with a moderate or a high content of wheat using controlled gastric feeding, and slaughtered at different time-points post-weaning. Sixty-nine variables were analysed by principal component analysis. The results showed that the temporal changes induced in the gut by weaning can be divided into two periods: an acute period happening immediately after weaning, followed after day 5 by a more progressive adaptative and maturational phase. The main factors of this adaptation were the refeeding process and the time, while the diet per se had little influence. The villus length, lactose activity, macromolecule fluxes across the jejunum and the plasma cholecystokinin were proposed as markers of the acute phase. Ths mass of the jejunum, the weight of the pancrease, the content of stomach, the trypsin activity and the theophyl-line-induced secretion in jejunum were related to the re-feeding. Markers proposed to follow the gut maturation were the maltase activity, the glucose absorption and the basal resistance in the ileum, the lactobacilli and enterococci in the colon, and the pH of colonic and caecal contents. These markers might be helpful to design suitable diets to limit posts-weaning gut disorders in pigs.
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Affiliation(s)
- Lucile Montagne
- Unité Mixte de Recherche Systèmes d'Elevage, Nutrition Animale et Humanine, INRA/Agrocampus Rennes, Saint-Gilles, France.
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35
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Yamauchi K, Buwjoom T, Koge K, Ebashi T. Histological alterations of the intestinal villi and epithelial cells in chickens fed dietary sugar cane extract. Br Poult Sci 2007; 47:544-53. [PMID: 17050097 DOI: 10.1080/00071660600963149] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
1. Sugar cane extract (SCE) is the residue after removing glucose, fructose and sucrose from sugar cane juice. To investigate the effects of dietary SCE on growth performance and alterations to intestinal histology, 36 male Sanuki Cochin chickens were divided into three groups: a control group was fed a commercial diet (180 g/kg CP, 13.59 MJ/kg ME) and the treatment groups were fed the commercial diet supplemented with 0.5 or 10 g/kg SCE ad libitum for 35 d. 2. Feed intake and weight gain tended to be higher in the 0.5 and 10 g/kg SCE groups than in the control group. No specific gross morphological alterations were observed in the visceral organs of chickens in any of the groups. However, intestinal villus height, villus area, epithelial cell area and cell mitosis in each intestinal segment had higher values in the SCE groups than in the control group. In the 0.5 and 10 g/kg SCE groups, but not in the control group, the cells on the villus apical surface protuberated and had larger cell clusters and some areas with cells with no microvilli. 3. The observed alterations to intestinal histology in chickens fed dietary SCE diets demonstrate that the function of villi and cells on the villus tip might be activated in all the intestinal segments and that cell turnover is also accelerated. These activated intestinal functions appear to promote growth and immuno-stimulation in chickens fed SCE diets, especially in the 0.5 g/kg group.
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Affiliation(s)
- K Yamauchi
- Faculty of Agriculture, Laboratory of Animal Science, Kagawa University, Miki-cho, Kagawa-ken, Japan.
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36
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Yamauchi K, Buwjoom T, Koge K, Ebashi T. Histological Intestinal Recovery in Chickens Refed Dietary Sugar Cane Extract. Poult Sci 2006; 85:645-51. [PMID: 16615348 DOI: 10.1093/ps/85.4.645] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Sugar cane extract (SCE), the residue after removing glucose, fructose, and sucrose from sugar cane juice, has growth-promoting, antistress, and immunostimulation effects. The objective of this study was to investigate the effects of refeeding dietary SCE on recovery of BW and intestinal histology after withdrawing feed from chickens. Forty-eight male Sanuki Cochin chickens were assigned randomly to 6 treatments and 8 replicates in a completely randomized design. The 6 treatments were intact control chickens fed ad libitum a basal commercial grower mash diet; 3 d of feed withdrawal; feed withdrawal followed by 1 d of ad libitum access to the same commercial mash diet (AFC); and free access to the commercial mash diet with 0.05, 1, or 3% SCE for 1 d. All SCE groups gained more weight in 1 d of refeeding than the AFC group (P < 0.05). Compared with the AFC group, the SCE groups increased cell mitosis (P < 0.05). On the villus apical surface, flat epithelial cells of the feed withdrawal group developed more protuberated cells than those of the intact control group in all refeeding groups. Compared with the AFC group, the SCE groups showed more protuberated cells. In addition, in the 0.05% SCE group, cell clusters aggregated by many cells were observed on the villus apical surface. The present histological intestinal alterations in chickens refed a SCE-containing diet demonstrate that the villi and epithelial cells might be hypertrophied because of some component in the SCE, resulting in quicker BW recovery in SCE-fed birds compared with those in the AFC group.
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Affiliation(s)
- K Yamauchi
- Laboratory of Animal Science, Faculty of Agriculture, Kagawa University, Miki-cho, Kagawa-ken 761-0795, Japan.
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Smit EN, Muskiet FAJ, Boersma ER. The possible role of essential fatty acids in the pathophysiology of malnutrition: a review. Prostaglandins Leukot Essent Fatty Acids 2004; 71:241-50. [PMID: 15301795 DOI: 10.1016/j.plefa.2004.03.019] [Citation(s) in RCA: 66] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/26/2003] [Accepted: 03/17/2004] [Indexed: 10/26/2022]
Abstract
Biochemical evidence of essential fatty acid deficiency (EFAD) may exist in protein-energy malnutrition (PEM). EFAD is characterised by low 18:2omega6, often in combination with low 20:4omega6 and 22:6omega3, and high 18:1omega9 and 20:3omega9. Some PEM symptoms, notably skin changes, impaired resistance to infections, impaired growth rate and disturbed development may at least partly be explained by EFAD. One or more of the following factors could induce EFAD in PEM: low EFA intake, poor lipid digestion, absorption, transport, desaturation and increased EFA beta-oxidation and peroxidation. EFAD may perpetuate itself by decreasing lipid absorption and transport, and aggravate PEM by impairing nutrient absorption and dietary calorie utilisation. Micronutrient deficiencies may contribute to the impaired EFA bioavailability and metabolism. Nutritional rehabilitation strategies in PEM may consider adequate intakes of EFA and micronutrients, e.g. by promoting breastfeeding. More research is required to gain detailed insight into the role of EFAD in PEM.
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Affiliation(s)
- Ella N Smit
- Department of Pathology and Laboratory Medicine, c/o Prof. Dr. Frits A.J. Muskiet, CMC-V, Y1.147, Groningen University Hospital, P.O. Box 30.001, 9700 RB Groningen, The Netherlands.
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Mekbungwan A, Thongwittaya N, Yamauchi KE. Digestibility of soybean and pigeon pea seed meals and morphological intestinal alterations in pigs. J Vet Med Sci 2004; 66:627-33. [PMID: 15240936 DOI: 10.1292/jvms.66.627] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
To compare the nutrient digestibility of soybean meal (SM) and pigeon pea seed meal (PM) as well as morphological intestinal alterations in piglets fed them, three pigs per group were randomly selected at the end of the feeding experiment for ten days. Growth performance was higher in the SM group than in the PM group (p<0.05). The digestibility of crude protein, crude fat and crude fiber was 80.6%, 23.6% and 52.4% in the SM group, while in the PM group, values of 49.8%, 23.6% and 43.2% were observed, respectively. Digestible energy was 3.26 kcal g(-1) in SM and 3.17 kcal g(-1) in PM. It was concluded that the digestibility of PM was lower than that of SM; almost half of the protein in PM was digested. Dietary treatments had no effect on length of each small intestinal segment and weight of visceral organs (small intestine, liver, heart, spleen, kidney, stomach and lung) except the decreased kidney weight in the PM group (p<0.05). The epithelial cells on the jejunal villi showed a dome-like shape in the SM group, but they were a flat shape in the PM group. The present digestion trial and histological intestinal data suggest that the intestinal digestive and absorptive functions are much more atrophied in the PM group than in the SM group, and demonstrate that histological intestinal alterations might be well related with the intestinal functions.
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Affiliation(s)
- Apichai Mekbungwan
- Department of Animal Technology, Faculty of Agricultural Production, Maejo University, Thailand
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Mekbungwan A, Yamauchi K, Sakaida T. Intestinal villus histological alterations in piglets fed dietary charcoal powder including wood vinegar compound liquid. Anat Histol Embryol 2004; 33:11-6. [PMID: 15027956 DOI: 10.1111/j.1439-0264.2004.00501.x] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
To investigate the effects of dietary charcoal powder including wood vinegar compound liquid (CWVC, 4 : 1) on intestinal villus histology, piglets were fed 0, 1, 3 and 5% dietary CWVC diets for 30 days. Feed intake and body weight gain were measured during the experimental period. At the end of the experiments, intestinal villus height, epithelial cell area and cell mitosis were examined using light microscopy (LM), and the duodenal villus tip surface was observed using scanning electron microscopy (SEM). Feed efficiency tended to be improved in the CWVC group. The 3% CWVC group showed the highest value, followed by 1% CWVC group of most LM parameters in most intestinal parts, but the 5% CWVC group showed the almost similar value compared with the control. In addition, on the duodenal villus tip surface, the 3% CWVC group showed a clearer cell outline, larger cells and cells protuberated further into the lumen than those of the 1% CWVC group. However, the 5% CWVC group showed faint SEM features than the 1% CWVC group. The present trend of improved feed efficiency after feedings of dietary CWVC demonstrates that the CWVC could be incorporated into piglet diets up to 3% level, and that the CWVC might activate intestinal functions both at villus and cellular levels.
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Affiliation(s)
- A Mekbungwan
- Laboratory of Animal Science, Faculty of Agriculture, Kagawa University, Miki-cho, Kagawa-ken, Japan
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40
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Van Harten S, Almeida A, Morais Z, Cardoso L. Free fatty acids and fatty acids of triacylglycerols profiles in muscle and plasma of fed and underfed laboratory rats. Nutr Res 2003. [DOI: 10.1016/j.nutres.2003.08.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Almansa E, Sánchez JJ, Cozzi S, Rodríguez C, Díaz M. Temperature-activity relationship for the intestinal Na+-K+-ATPase of Sparus aurata. A role for the phospholipid microenvironment? J Comp Physiol B 2003; 173:231-7. [PMID: 12743726 DOI: 10.1007/s00360-003-0327-y] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/16/2002] [Indexed: 10/25/2022]
Abstract
The temperature dependence for Na(+)-K(+)-ATPase has been examined in the proximal-distal axis of the intestine of gilthead seabream (Sparus aurata), i.e. pyloric caeca (PC), anterior intestine (AI) and posterior intestine (PI). Data derived from the Arrhenius plots showed differences in terms of temperature discontinuity points ( Td) (13.29 degrees C, 16.39 degrees C and 17.48 degrees C for PC, AI and PI, respectively) and activation energy ratios (Ea(2)/Ea(1)) obtained at both sides of Td (2.38, 1.98 and 1.78, for PC, AI and PI, respectively). The analyses of polar lipids showed differences in the levels of certain fatty acids among intestinal regions. The content of each fatty acid and different fatty acid ratios were correlated with the corresponding Td and Ea(2)/Ea(1) values. Regression analyses revealed the existence of strong negative correlations between docosahexaenoic acid (22:6n-3, DHA) or the DHA/monoenes ratio and Td. No obvious relationships were observed for other polyunsaturated fatty acids (PUFA) nor saturated fatty acids. The results obtained in the present study indicate that the heterogeneous values of Td displayed by the Na(+)-K(+)-ATPase along the intestinal tract could be related to a modulatory role of certain fatty acid within the lipid microenvironment of the enzyme.
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Affiliation(s)
- E Almansa
- Laboratorio de Fisiología Animal, Departamento de Biología Animal, Facultad de Biología, Universidad de La Laguna, 38206 Tenerife, Spain
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Amate L, Gil A, Ramírez M. Dietary long-chain PUFA in the form of TAG or phospholipids influence lymph lipoprotein size and composition in piglets. Lipids 2002; 37:975-80. [PMID: 12530557 DOI: 10.1007/s11745-006-0989-9] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Several sources of long-chain PUFA (LCP) are currently available for infant formula supplementation. These oils differ in their FA composition, the chemical form of the FA esters [TAG or phospholipids (PL)], and presence of other lipid components. These differences may affect LCP absorption, distribution, and metabolic fate after ingestion. The purpose of this study was to evaluate the influence of different chemical forms of dietary LCP on the composition of lymph lipoproteins. Eighteen pigs (5 d old) were bottle-fed different diets for 2 wk: a control diet (C), a diet containing LCP as TAG from tuna and fungal oils (TF-TAG), or a diet containing LCP as PL from egg yolk (E-PL). We measured lipid and FA composition of lymph, main lymph fractions (TAG or PL), and the particle size of lymph lipoproteins. The average diameter of lymph lipoproteins was significantly lower in the E-PL group compared with the control and TF-TAG groups (C: 3902 +/- 384 A; TF-TAG: 3773 +/- 384 A; E-PL: 2370 +/- 185 A). Arachidonic acid and DHA contents in lymph and lymph-TAG were significantly higher in the TF-TAG group compared to the E-PL group (0.50 +/- 0.03 and 0.24 +/- 0.03 g/100 g vs. 0.29 +/- 0.04 and 0.12 +/- 0.03 g/100 g, respectively). The addition to the diet of LCP in the form of TAG or PL affected the size of intestinal lipoproteins and also led to a different distribution of these FA in lymph lipoproteins.
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Affiliation(s)
- Laura Amate
- Research and Development Department, Abbott Laboratories, 18004 Granada, Spain
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44
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Amate L, Gil A, Ramírez M. Feeding infant piglets formula with long-chain polyunsaturated fatty acids as triacylglycerols or phospholipids influences the distribution of these fatty acids in plasma lipoprotein fractions. J Nutr 2001; 131:1250-5. [PMID: 11285334 DOI: 10.1093/jn/131.4.1250] [Citation(s) in RCA: 61] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Several sources of long-chain polyunsaturated fatty acids (LCP) are currently available for infant formula supplementation. These oils differ in their fatty acid composition, the chemical form of the fatty acid esters [triacylglycerols (TG) or phospholipids (PL)] and presence of other lipid components. These differences may affect LCP absorption, distribution and metabolic fate after ingestion. The purpose of the present study was to evaluate the influence of different chemical forms of dietary LCP on the composition of plasma, plasma lipoproteins, liver and jejunum in infant piglets. Thirty pigs (5 d old) were bottle-fed different diets for 4 wk: a control diet (C), a diet containing LCP as TG from tuna and fungal oils (TF-TG) or a diet containing LCP as PL from egg yolk (E-PL). We measured lipid and fatty acid composition of plasma and lipoproteins, as well as lipid composition of liver and intestinal mucosa. The arachidonic and docosahexaenoic acids in HDL-PL were significantly higher in piglets fed the E-PL diet than in those fed the TF-TG diet. Opposite results were found in the LDL-PL diet. No significant differences were found between groups in TG or cholesterol concentrations of plasma or lipoproteins. Arachidonic acid in plasma PL and cholesteryl esters was significantly higher in the E-PL group than in the TF-TG group. The chemical form in which LCP esters are present in different dietary sources influences their distribution in plasma lipoproteins. This may be important for infant nutrition and suggests that not all LCP sources may be biologically equivalent.
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Affiliation(s)
- L Amate
- Research and Development Department, Abbott Laboratories, 18004 Granada, Spain.
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Abstract
Fasting or malnutrition (FM) has dramatic effects on small intestinal mucosal structure and transport function. Intestinal secretion of ions and fluid is increased by FM both under basal conditions and in response to secretory agonists. Intestinal permeability to ions and macromolecules may also be elevated by FM, which increases the potential for fluid and electrolyte losses and for anaphylactic responses to luminal antigens. Mucosal atrophy induced by FM reduces total intestinal absorption of nutrients, but nutrient absorption normalized to mucosal mass may actually be enhanced by a variety of mechanisms, including increased transporter gene expression, electrochemical gradients, and ratio of mature to immature cells. These observations underscore the value of enteral feeding during health and disease.
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Affiliation(s)
- R P Ferraris
- Department of Pharmacology and Physiology, UMD-New Jersey Medical School, Newark, New Jersey 07103-2714, USA.
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Drieu K, Vranckx R, Benassayad C, Haourigi M, Hassid J, Yoa RG, Rapin JR, Nunez EA. Effect of the extract of Ginkgo biloba (EGb 761) on the circulating and cellular profiles of polyunsaturated fatty acids: correlation with the anti-oxidant properties of the extract. Prostaglandins Leukot Essent Fatty Acids 2000; 63:293-300. [PMID: 11090256 DOI: 10.1054/plef.2000.0217] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Ginkgo biloba extract (EGb 761) has beneficial effects on cognitive functions in aging patients, and on various pathologies, including cardiovascular diseases. Although the extract is known to have antioxidant properties and improve membrane fluidity, the cellular mechanisms underlying these effects have not been determined. Here, we examined the in vivo effects of EGb 761 on circulating and cellular lipids. EGb 761 treatment induced significant increases in the levels of circulating polyunsaturated fatty acids (PUFAs), and a decrease in the saturation index SI (saturated/polyunsaturated species). Plasma triglycerides and cholesterol were not affected, while phospholipids were slightly increased at the higher dose of EGb 761. EGb 761 treatment also induced a significant increase in the levels of PUFAs in erythrocyte membranes, especially for the eicosapentaenoic acid (EPA omega 3), and a decrease in the saturation index. Moreover, the response of erythrocytes to oxidative stress was improved in EGb 761-treated animals (H(2)O(2)-induced cell lysis decreased by 50%). Considering that PUFAs are known to improve membrane fluidity and response to oxidative damage, and are precursors of signaling molecules such as prostaglandins, the effects of EGb 761 on circulating and cellular PUFAs may explain some of the pharmacological properties of Ginkgo biloba.
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Affiliation(s)
- K Drieu
- Institut Henri Beaufour-Ipsen, 24 rue Erlanger, 75781, Paris Cedex 16, France.
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Louw L, Dannhauser A. Keloids in rural black South Africans. Part 2: dietary fatty acid intake and total phospholipid fatty acid profile in the blood of keloid patients. Prostaglandins Leukot Essent Fatty Acids 2000; 63:247-53. [PMID: 11090250 DOI: 10.1054/plef.2000.0208] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
In the second part of this study, emphasis is placed on nutritional intakes (fatty acids and micronutrients) and fatty acid intake and metabolism in the blood, respectively, according to a combined 24 h recall and standardized food frequency questionnaire analyses of keloid prone patients (n=10), compared with normal black South Africans (n=80), and total phospholipid blood (plasma and red blood cell ) analyses of keloid patients (n=20), compared with normal individuals (n=20). Lipid extraction and fractionation by standard procedures, total phospholipid (TPL) separation with thin layer chromatography, and fatty acid methyl ester analyses with gas liquid chromatography techniques were used. Since nutrition may play a role in several disease disorders, the purpose of this study was to confirm or refute a role for essential fatty acids (EFAs) in the hypothesis of keloid formations stated in part 1 of this study. (1)According to the Canadian recommendation (1991), we observed that in keloid patients linoleic acid (LA) and arachidonic acid (AA) dietary intakes, as EFAs of the omega-6-series, are higher than the recommended 7-11 g/d. However, the a-linolenic acid (ALA), eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) dietary intakes, as EFAs of the omega-3 series, are lower than the recommendation of 1.1-1.5 g/d. This was also the case in the control group, where a higher dietary intake of the omega-6 fatty acids and a slightly lower dietary intake of the omega-3 fatty acids occurred. Thus, we confirm a high dietary intake of LA (as a product of organ meats, diary products and many vegetable oils) and AA (as a product of meats and egg yolks), as well as lower dietary intakes of ALA (as a product of grains, green leafy vegetables, soy oil, rapeseed oil and linseed), and EPA and DHA (as products of marine oils). Lower micronutrient intakes than the recommended dietary allowances were observed in the keloid group that may influence EFA metabolism and/or collagen synthesis. Of cardinal importance may be the lower intake of calcium in the keloid patients that may contribute to abnormal cell signal transduction in fibroblasts and consequent collagen overproduction, and the lower copper intake that may influence the immune system, or perhaps even the high magnesium intake that stimulates metabolic activity. Micronutrient deficiencies also occurred in the diets of the normal black South Africans that served as a control group. In the case of plasma TPLs, deficiency of the omega-3 EFA series (ALA, EPA and DHA) occurred, and this is in accordance with the apparent lower omega-3 EFA intake in the diets of these patients. In the case of the red blood cell TPLs, as a true and reliable source of dietary fatty acid intake and metabolism, sufficient EFAs of the omega-6 series (LA and AA) and the omega-3 series (ALA, EPA and DHA) occurred. For this study group a relative deficiency of nutritional omega-3 EFA intake apparently did occur, but was probably compensated for by blood fatty acid metabolism.
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Affiliation(s)
- L Louw
- Department of Anatomy and Cell Morphology, University of the Orange Free State, Bloemfontein, South Africa
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López-Pedrosa JM, Ramírez M, Torres MI, Gil A. Dietary phospholipids rich in long-chain polyunsaturated fatty acids improve the repair of small intestine in previously malnourished piglets. J Nutr 1999; 129:1149-55. [PMID: 10356079 DOI: 10.1093/jn/129.6.1149] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Malnourished piglets were studied to establish how a diet containing long-chain polyunsaturated fatty acids (LC-PUFA) of the (n-6) and (n-3) series, esterified in the form of phospholipids, affects intestinal recovery after severe malnutrition. Piglets (7-d-old) were randomly assigned to two groups. One group was fed a piglet milk formula and the other was malnourished by protein-energy restriction for 30 d. Healthy and malnourished piglets were then divided into two subgroups fed for 10 d either an adapted milk formula (C and M) or the same diet supplemented with LC-PUFA phospholipids (C-P and M-P). The M-P group had greater protein, DNA, cholesterol and phospholipid levels and a lower triglyceride level in the jejunal segment than did the M group. The fatty acid composition of the jejunal mucosa and microsomes of the M-P piglets did not differ from that of healthy piglets (C). However, in jejunal mucosa, microsomes and phospholipids from malnourished piglets that did not receive LC-PUFA (group M) had significantly lower percentages of (n-6) LC-PUFA than those in healthy piglets (C). The (n-3) LC-PUFA percentages of jejunal mucosa were also lower in the M group than in the C group. The small intestine of piglets fed the LC-PUFA-supplemented formula recovered more completely from histologic lesions and biochemical alterations caused by the malnutrition process than the small intestine of piglets fed the control formula without LC-PUFA.
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Affiliation(s)
- J M López-Pedrosa
- Department of Biochemistry and Molecular Biology, Department of Cell Biology, University of Granada and R&D Department, Abbott Laboratories S.A., Granada, Spain
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