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Montoya CA, Young W, Ryan L, Dunstan K, Peters J, Dewhurst H, Dekker J, Haggarty N, Dilger RN, Roy NC. The probiotic Lacticaseibacillus rhamnosus HN001 influences the architecture and gene expression of small intestine tissue in a piglet model. Br J Nutr 2024; 131:1289-1297. [PMID: 38053344 PMCID: PMC10950449 DOI: 10.1017/s0007114523002830] [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: 04/17/2023] [Revised: 10/25/2023] [Accepted: 11/24/2023] [Indexed: 12/07/2023]
Abstract
This study investigated the effects of Lacticaseibacillus rhamnosus HN001 supplementation on the architecture and gene expression in small intestinal tissues of piglets used as an animal model for infant humans. Twenty-four 10-d-old entire male piglets (4·3 (sd 0·59) kg body weight) were fed an infant formula (IF) (control) or IF supplemented with 1·3 × 105 (low dose) or 7·9 × 106 (high dose) colony-forming units HN001 per ml of reconstituted formula (n 8 piglets/treatment). After 24 d, piglets were euthanised. Samples were collected to analyse the histology and gene expression (RNAseq and qPCR) in the jejunal and ileal tissues, blood cytokine concentrations, and blood and faecal calprotectin concentrations. HN001 consumption altered (false discovery rate < 0·05) gene expression (RNAseq) in jejunal tissues but not in ileal tissues. The number of ileal goblet cells and crypt surface area increased quadratically (P < 0·05) as dietary HN001 levels increased, but no increase was observed in the jejunal tissues. Similarly, blood plasma concentrations of IL-10 and calprotectin increased linearly (P < 0·05) as dietary HN001 levels increased. In conclusion, supplementation of IF with HN001 affected the architecture and gene expression of small intestine tissue, blood cytokine concentration and frequencies, and blood calprotectin concentrations, indicating that HN001 modulated small intestinal tissue maturation and immunity in the piglet model.
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Affiliation(s)
- Carlos A. Montoya
- Smart Foods & Bioproducts, AgResearch, Te Ohu Rangahau Kai Facility, Palmerston North, New Zealand
- Riddet Institute, Massey University, Te Ohu Rangahau Kai Facility, Palmerston North4474, New Zealand
| | - Wayne Young
- Smart Foods & Bioproducts, AgResearch, Te Ohu Rangahau Kai Facility, Palmerston North, New Zealand
- Riddet Institute, Massey University, Te Ohu Rangahau Kai Facility, Palmerston North4474, New Zealand
- High-Value Nutrition National Science Challenge, Auckland, New Zealand
- Fonterra Research and Development Centre, Dairy Farm Rd, Palmerston North, New Zealand
| | - Leigh Ryan
- Smart Foods & Bioproducts, AgResearch, Te Ohu Rangahau Kai Facility, Palmerston North, New Zealand
| | - Kelly Dunstan
- Smart Foods & Bioproducts, AgResearch, Te Ohu Rangahau Kai Facility, Palmerston North, New Zealand
| | - Jason Peters
- Smart Foods & Bioproducts, AgResearch, Te Ohu Rangahau Kai Facility, Palmerston North, New Zealand
| | - Hilary Dewhurst
- Smart Foods & Bioproducts, AgResearch, Te Ohu Rangahau Kai Facility, Palmerston North, New Zealand
| | - James Dekker
- Fonterra Research and Development Centre, Dairy Farm Rd, Palmerston North, New Zealand
| | - Neill Haggarty
- Fonterra Research and Development Centre, Dairy Farm Rd, Palmerston North, New Zealand
| | - Ryan N. Dilger
- Department of Animal Sciences, University of Illinois, Urbana, IL, USA
| | - Nicole C. Roy
- Riddet Institute, Massey University, Te Ohu Rangahau Kai Facility, Palmerston North4474, New Zealand
- High-Value Nutrition National Science Challenge, Auckland, New Zealand
- Department of Human Nutrition, University of Otago, Dunedin, New Zealand
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Montoya CA, Rohleff I, Hodgkinson S, Stoklosinski HM, Moughan PJ. Type and Amount of Dietary Fiber Influence the Hindgut Synthesis of Organic Acids from Fermentable Material of Both Total and Nondietary Origin in a Pig Model of the Adult Human. J Nutr 2023; 153:2868-2877. [PMID: 37604383 DOI: 10.1016/j.tjnut.2023.08.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Revised: 07/25/2023] [Accepted: 08/16/2023] [Indexed: 08/23/2023] Open
Abstract
BACKGROUND Organic acid synthesis by the hindgut microbiota is commonly believed to be mainly of fermentable material of dietary origin. OBJECTIVE This study aimed to determine the hindgut organic acid synthesis from fermentable material of dietary (mainly fiber) or nondietary origin for different types and amounts of dietary fiber in growing pigs used as a model for adult humans. METHOD Seven fiber-containing diets were formulated: 4 fiber types (cellulose, gum acacia, oligofructose, and pectin) at 6% of the diet and 3 (gum acacia, oligofructose, and pectin) at 3% as the sole fiber source. Ileal cannulated female pigs (n = 14; Landrace/Large white) were fed the fiber-containing diets (n = 6 pigs/diet) for 11 days (fiber phase) followed by 3 days on a fiber-free diet (fiber-free phase), using a replicated Youden square. Ileal digesta for each phase were collected and fermented in vitro with a pooled fecal microbial inoculum prepared from feces collected during the fiber phase to determine the organic acids synthesized from fermentable material of dietary (fiber phase) and nondietary (fiber-free phase) origins. RESULTS The total amount of each individual organic acid synthesized during in vitro hindgut fermentation differed (P ≤ 0.05) across the types and amounts of dietary fiber intake. For example, the amount of acetate was 3.6-fold higher (P ≤ 0.05) for pigs fed the 6% pectin-containing diet than those fed the 6% oligofructose-containing diet. The nondietary substrate contributed between 36% (hexanoate) and 70% (succinate) to the total hindgut organic acid synthesis. The adaptation to the different fiber-containing diets led to different amounts of some organic acids of nondietary origin. CONCLUSIONS The total amount of organic acids synthesized in the hindgut by the resident microbes is influenced by the type and amount of dietary fiber consumed. This study quantifies the interaction between both dietary and nondietary fermentable materials in hindgut fermentation.
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Affiliation(s)
- Carlos A Montoya
- Smart Foods & Bioproducts, AgResearch, Te Ohu Rangahau Kai, Massey University, Palmerston North, New Zealand; Riddet Institute, Massey University, Te Ohu Rangahau Kai Facility, Palmerston North, New Zealand.
| | - Ina Rohleff
- Riddet Institute, Massey University, Te Ohu Rangahau Kai Facility, Palmerston North, New Zealand
| | - Suzanne Hodgkinson
- Riddet Institute, Massey University, Te Ohu Rangahau Kai Facility, Palmerston North, New Zealand
| | | | - Paul J Moughan
- Riddet Institute, Massey University, Te Ohu Rangahau Kai Facility, Palmerston North, New Zealand
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