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Viteri-Echeverría J, Andrés A, Calvo-Lerma J, Heredia A, García-Hernández J, Asensio-Grau A. In vitro screening of the impact of dietary prebiotic components, probiotic strains, and their symbiotic combinations on colonic microbiota in children with cystic fibrosis. Food Funct 2024; 15:6512-6522. [PMID: 38804915 DOI: 10.1039/d4fo00325j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/29/2024]
Abstract
Children with Cystic Fibrosis (CF) are more likely to have intestinal dysbiosis due to recurrent antibiotic therapy and the conventional hypercaloric diet administered to them. This study aimed at evaluating the effect of isolated prebiotic components and probiotic strains, and their combinations as potential synbiotics, on the intestinal microbiota of CF children. A static in vitro colonic fermentation model was used by colonizing vials with faecal inoculum, a culture medium, and the substrates to be tested. Post treatment, aliquots were taken to determine ammonium, lactate, and short-chain fatty acids production and to profile the microbiota composition by 16s rRNA sequencing. At genus level, Escherichia-Shigella decreased (15.8%) with the treatment pectin + L. rhamnosus, followed by the beta-glucan + L. salivarius (15.5%). Inversely, the most increase in Bacteroides (44%) was obtained by the treatment with Pectin + L. reuteri. Lactate and acetic acid production was significantly increased with prebiotics and their combinations with L. rhamnosus and L. salivarius. In conclusion, the use of beta-glucan and pectin in combination with probiotic strains from the Lactobacillaceae family suggest potential to modulate dysbiosis and metabolic activity on CF colonic microbiota, encouraging further studies in animal studies or clinical settings to confirm the findings in vivo.
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Affiliation(s)
- Jazmín Viteri-Echeverría
- University Institute of Food Engineering (FoodUPV), Polytechnic University of Valencia, Camino de Vera s/n, 46022, València, Spain.
| | - Ana Andrés
- University Institute of Food Engineering (FoodUPV), Polytechnic University of Valencia, Camino de Vera s/n, 46022, València, Spain.
| | - Joaquim Calvo-Lerma
- Research Group in Innovative Technologies for Sustainable Food (ALISOST). University of Valencia, Avda. Vicent Andrés Estellés s/n, Burjassot, 46100, València, Spain.
| | - Ana Heredia
- University Institute of Food Engineering (FoodUPV), Polytechnic University of Valencia, Camino de Vera s/n, 46022, València, Spain.
| | - Jorge García-Hernández
- Advanced Food Microbiology Centre (CAMA), Polytechnic University of Valencia, Camino de Vera s/n, 46022 València, Spain.
| | - Andrea Asensio-Grau
- University Institute of Food Engineering (FoodUPV), Polytechnic University of Valencia, Camino de Vera s/n, 46022, València, Spain.
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Asensio-Grau A, Ferriz-Jordán M, Hervás D, Heredia A, García-Hernández J, Garriga M, Masip E, Carmen Collado M, Andrés A, Ribes-Koninckx C, Calvo-Lerma J. Faecal lipid profile as a new marker of fat maldigestion, malabsorption and microbiota. Pediatr Res 2024:10.1038/s41390-024-03209-0. [PMID: 38778229 DOI: 10.1038/s41390-024-03209-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Revised: 03/21/2024] [Accepted: 03/28/2024] [Indexed: 05/25/2024]
Abstract
BACKGROUND Fat malabsorption in children with cystic fibrosis (CF) leads to poor nutritional status and altered colonic microbiota. This study aimed at establishing the faecal lipid profile in children with CF, and exploring associations between the faecal lipidome and microbiota. METHODS Cross-sectional observational study with children with CF and an age-matched control group. Faecal lipidome was analysed by UHLC-HRMS and microbiota profiling by 16S rRNA amplicon sequencing. RESULTS Among 234 identified lipid species, five lipidome clusters (LC) were obtained with significant differences in triacylglycerols (TG), diacylglycerols (DG), monoacylglycerols (MG) and fatty-acids (FA): LC1 subjects with good digestion and absorption: low TG and low MG and FA; LC2 good digestion and poor absorption: low TG and high MG and FA; LC3 Mild digestion and poor absorption: intermediate TG and high MG and FA; LC4 poor digestion and absorption: high TG and high MG and FA; LC5 outliers. Bacteroidota and Verrucomicrobiota decreased over LC1-LC4, while Proteobacteria increased. Nutritional status indicators were significantly higher in LC1 and decreased over LC2-LC4. CONCLUSION Assessing faecal lipidome may be relevant to determine how dietary lipids are digested and absorbed. This new evidence might be a method to support targeted nutritional interventions towards reverting fat maldigestion or malabsorption. IMPACT Lipidomic analysis enabled the identification of the lipid species related to maldigestion (triglycerides) or malabsorption (monoglycerides and fatty acids). Children with cystic fibrosis can be grouped depending on the faecal lipidome profile related to dietary fat maldigestion or malabsorption. The lipidome profile in faeces is related to the composition of microbiota and nutritional status indicators.
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Affiliation(s)
- Andrea Asensio-Grau
- Institute of Food Engineering (FoodUPV). Polytechnic University of València, 46022, València, Spain
- Joint Research Unit NutriCuraPDig, València, Spain
| | - Miguel Ferriz-Jordán
- Institute of Food Engineering (FoodUPV). Polytechnic University of València, 46022, València, Spain
| | - David Hervás
- Department of Statistics (EIO). Polytechnic University of València, 46022, València, Spain
| | - Ana Heredia
- Institute of Food Engineering (FoodUPV). Polytechnic University of València, 46022, València, Spain
- Joint Research Unit NutriCuraPDig, València, Spain
| | - Jorge García-Hernández
- Centre for Advanced Microbiology (CAMA). Polytechnic University of València, 46022, València, Spain
| | - María Garriga
- University Hospital Ramón y Cajal, 28034, Madrid, Spain
| | - Etna Masip
- Health Research Institute La Fe, 46026, València, Spain
| | - M Carmen Collado
- Institute of Agrochemistry and Food Technology. Spanish National Research Council (IATA-CSIC), 46980, València, Spain
| | - Ana Andrés
- Institute of Food Engineering (FoodUPV). Polytechnic University of València, 46022, València, Spain
- Joint Research Unit NutriCuraPDig, València, Spain
| | - Carmen Ribes-Koninckx
- Joint Research Unit NutriCuraPDig, València, Spain
- Health Research Institute La Fe, 46026, València, Spain
| | - Joaquim Calvo-Lerma
- Institute of Food Engineering (FoodUPV). Polytechnic University of València, 46022, València, Spain.
- Joint Research Unit NutriCuraPDig, València, Spain.
- Faculty of Pharmacy and Food Science. University of Valencia, Avda. Vicent Andrés Estellés s/n, Burjassot, 46100, València, Spain.
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Yang X, Xu H, Liang X, Yuan G, Gao Q, Tan X, Yang Y, Xiao Y, Huang Z, Dai W, Liu X. Exploring the casual association between gut microbiome, circulating inflammatory cytokines and chronic pancreatitis: A Mendelian randomization analysis. Medicine (Baltimore) 2024; 103:e37959. [PMID: 38701270 PMCID: PMC11062735 DOI: 10.1097/md.0000000000037959] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/29/2024] [Accepted: 03/29/2024] [Indexed: 05/05/2024] Open
Abstract
It has been established that gut dysbiosis contributed to the pathogenesis of digestive disorders. We aimed to explore the causal relationships between intestinal microbiota, circulating inflammatory cytokines and chronic pancreatitis (CP). Summary statistics of genome-wide association studies (GWAS) of intestinal microbiome was retrieved from the MiBioGen study and the GWAS data of 91 circulating inflammatory cytokines and CP were obtained from the GWAS catalog. The 2-sample bidirectional Mendelian randomization (MR) analysis was performed between gut microbiota, circulating inflammatory cytokines and CP, in which the inverse variance weighted (IVW) method was regarded as the primary analysis approach. To prove the reliability of the causal estimations, multiple sensitivity analyses were utilized. IVW results revealed that genetically predicted 2 genera, including Sellimonas and Eubacteriumventriosumgroup, and plasm C-C motif chemokine 23 (CCL23) level were positively associated with CP risk, while genus Escherichia Shigella, Eubacteriumruminantiumgroup and Prevotella9, and plasma Caspase 8, Adenosine Deaminase (ADA), and SIR2-like protein 2 (SIRT2) level, demonstrated an ameliorative effect on CP. Leave-one-out analysis confirmed the robustness of the aforementioned causal effects and no significant horizontal pleiotropy or heterogeneity of the instrumental variables was detected. However, no association was found from the identified genera to the CP-related circulating inflammatory cytokines. Besides, the reverse MR analysis demonstrated no causal relationship from CP to the identified genera and circulating inflammatory cytokines. Taken together, our comprehensive analyses offer evidence in favor of the estimated causal connections from the 5 genus-level microbial taxa and 4 circulating inflammatory cytokines to CP risk, which may help to reveal the underlying pathogenesis of CP.
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Affiliation(s)
- Xiaoqiu Yang
- Department of Anesthesiology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong Province, People’s Republic of China
| | - Hao Xu
- Department of Hepatobiliary and Pancreatic Surgery, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong Province, People’s Republic of China
| | - Xiaolu Liang
- Department of Hepatobiliary and Pancreatic Surgery, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong Province, People’s Republic of China
| | - Guojia Yuan
- Department of Hepatobiliary and Pancreatic Surgery, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong Province, People’s Republic of China
| | - Qiaoping Gao
- Department of Hepatobiliary and Pancreatic Surgery, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong Province, People’s Republic of China
| | - Xiaoyu Tan
- Department of Hepatobiliary and Pancreatic Surgery, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong Province, People’s Republic of China
| | - Yongguang Yang
- Department of Hepatobiliary and Pancreatic Surgery, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong Province, People’s Republic of China
| | - Yi Xiao
- Department of Hepatobiliary and Pancreatic Surgery, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong Province, People’s Republic of China
| | - Zhanren Huang
- Department of Hepatobiliary and Pancreatic Surgery, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong Province, People’s Republic of China
| | - Wei Dai
- Department of Hepatobiliary and Pancreatic Surgery, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong Province, People’s Republic of China
| | - Xiaoguang Liu
- Department of Hepatobiliary and Pancreatic Surgery, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong Province, People’s Republic of China
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Asensio-Grau A, Heredia A, García-Hernández J, Cabrera-Rubio R, Masip E, Ribes-Koninckx C, Collado MC, Andrés A, Calvo-Lerma J. Effect of beta-glucan supplementation on cystic fibrosis colonic microbiota: an in vitro study. Pediatr Res 2024; 95:1519-1527. [PMID: 38092964 DOI: 10.1038/s41390-023-02944-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Revised: 11/06/2023] [Accepted: 11/18/2023] [Indexed: 05/26/2024]
Abstract
BACKGROUND Children with cystic fibrosis (CF) present with gut dysbiosis, and current evidence impedes robust recommendations on the use of prebiotics. This study aimed at establishing the prebiotic potential of a commercial beta-glucan on the in vitro colonic microbiota of a child with CF compared to a healthy counterpart (H). METHODS A dynamic simulator of colonic fermentation (twin-SHIME® model) was set up including the simulation of the proximal (PC) and distal colon (DC) of the CF and the H subjects by colonizing the bioreactors with faecal microbiota. During two weeks the system was supplied with the beta-glucan. At baseline, during treatment and post-treatment, microbiota composition was profiled by 16 S rRNA and short-chain fatty acids (SCFA) production was determined by GS-MS. RESULTS At baseline, Faecalibacterium, was higher in CF' DC than in the H, along higher Acidaminococcus and less Megasphaera and Sutterella. Beta-glucan supplementation induced increased microbiota richness and diversity in both subjects during the treatment. At genus level, Pseudomonas and Veillonella decreased, while Akkermansia and Faecalibacterium increased significantly in CF. CONCLUSION The supplementation with beta-glucan suggests positive results on CF colonic microbiota in the in vitro context, encouraging further research in the in vivo setting. IMPACT Current evidence supports assessing the effect of prebiotics on modifying cystic fibrosis microbiota. The effect of beta-glucan supplementation was evaluated in a controlled dynamic in vitro colonic ecosystem. Beta-glucan supplement improved diversity in cystic fibrosis colonic microbiota. The treatment showed increased abundance of Faecalibacterium and Akkermansia in cystic fibrosis. New evidence supports the use of prebiotics in future clinical studies.
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Affiliation(s)
- Andrea Asensio-Grau
- Instituto de Ingeniería de Alimentos para el Desarrollo. Universitat Politècnica de València, València, Spain.
- Unidad Mixta de Investigación (NutriCuraPDig), Valencia, Spain.
| | - Ana Heredia
- Instituto de Ingeniería de Alimentos para el Desarrollo. Universitat Politècnica de València, València, Spain
- Unidad Mixta de Investigación (NutriCuraPDig), Valencia, Spain
| | - Jorge García-Hernández
- Unidad Mixta de Investigación (NutriCuraPDig), Valencia, Spain
- Centro Avanzado de Microbiología de Alimentos (CAMA), Universitat Politècnica de València, Valencia, Spain
| | - Raúl Cabrera-Rubio
- Institute of Agrochemistry and Food Technology-Spanish National Research Council (IATA-CSIC), Valencia, Spain
| | - Etna Masip
- Unidad Mixta de Investigación (NutriCuraPDig), Valencia, Spain
- Instituto de Investigación Sanitaria La Fe, Valencia, Spain
| | - Carmen Ribes-Koninckx
- Unidad Mixta de Investigación (NutriCuraPDig), Valencia, Spain
- Instituto de Investigación Sanitaria La Fe, Valencia, Spain
| | - Maria Carmen Collado
- Institute of Agrochemistry and Food Technology-Spanish National Research Council (IATA-CSIC), Valencia, Spain
| | - Ana Andrés
- Instituto de Ingeniería de Alimentos para el Desarrollo. Universitat Politècnica de València, València, Spain
- Unidad Mixta de Investigación (NutriCuraPDig), Valencia, Spain
| | - Joaquim Calvo-Lerma
- Unidad Mixta de Investigación (NutriCuraPDig), Valencia, Spain
- Institute of Agrochemistry and Food Technology-Spanish National Research Council (IATA-CSIC), Valencia, Spain
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5
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Wu X, Liu P, Wang Q, Sun L, Wang Y. A prognostic model established using bile acid genes to predict the immunity and survival of patients with gastrointestinal cancer. ENVIRONMENTAL TOXICOLOGY 2024. [PMID: 38606991 DOI: 10.1002/tox.24287] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2024] [Revised: 03/13/2024] [Accepted: 03/31/2024] [Indexed: 04/13/2024]
Abstract
BACKGROUND The metabolism of abnormal bile acids (BAs) is implicated in the initiation and development of gastrointestinal (GI) cancer. However, there was a lack of research on the molecular mechanisms of BAs metabolism in GI. METHODS Genes involved in BAs metabolism were excavated from public databases of The Cancer Genome Atlas (TCGA) database, Gene Expression Omnibus (GEO) database, and Molecular Signatures Database (MSigDB). ConsensusClusterPlus was used to classify molecular subtypes for GI. To develop a RiskScore model for predicting GI prognosis, univariate Cox analysis was performed on the genes in protein-protein interaction (PPI) network, followed by using Lasso regression and stepwise regression to refine the model and to determine the key prognostic genes. Tumor immune microenvironment in GI patients from different risk groups was assessed using the ESTIMATE algorithm and enrichment analysis. Reverse transcription-quantitative real-time PCR (RT-qPCR), Transwell assay, and wound healing assay were carried out to validate the expression and functions of the model genes. RESULTS This study defined three molecular subtypes (C1, C2, and C3). Specifically, C1 had the best prognosis, while C3 had the worst prognosis with high immune checkpoint gene expression levels and TIDE scores. We selected nine key genes (AXIN2, ATOH1, CHST13, PNMA2, GYG2, MAGEA3, SNCG, HEYL, and RASSF10) that significantly affected the prognosis of GI and used them to develop a RiskScore model accordingly. Combining the verification results from a nomogram, the prediction of the model was proven to be accurate. The high RiskScore group was significantly enriched in tumor and immune-related pathways. Compared with normal gastric mucosal epithelial cells, the mRNA levels of the nine genes were differential in the gastric cancer cells. Inhibition of PNMA2 suppressed migration and invasion of the cancer cells. CONCLUSION We distinguished three GI molecular subtypes with different prognosis based on the genes related to BAs metabolism and developed a RiskScore model, contributing to the diagnosis and treatment of patients with GI.
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Affiliation(s)
- Xin Wu
- Department of General Surgical Medicine, The First Medicine Center of PLA General Hospital, Beijing, China
| | - Peifa Liu
- Pathology Department, The First Medicine Center of PLA General Hospital, Beijing, China
| | - Qing Wang
- Department of General Surgical Medicine, The First Medicine Center of PLA General Hospital, Beijing, China
| | - Linde Sun
- Department of General Surgical Medicine, The First Medicine Center of PLA General Hospital, Beijing, China
| | - Yu Wang
- Department of General Surgical Medicine, The First Medicine Center of PLA General Hospital, Beijing, China
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Németh K, Sterczer Á, Kiss DS, Lányi RK, Hemző V, Vámos K, Bartha T, Buzás A, Lányi K. Determination of Bile Acids in Canine Biological Samples: Diagnostic Significance. Metabolites 2024; 14:178. [PMID: 38668306 PMCID: PMC11052161 DOI: 10.3390/metabo14040178] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2024] [Revised: 03/19/2024] [Accepted: 03/20/2024] [Indexed: 04/28/2024] Open
Abstract
The comprehensive examination of bile acids is of paramount importance across various fields of health sciences, influencing physiology, microbiology, internal medicine, and pharmacology. While enzymatic reaction-based photometric methods remain fundamental for total BA measurements, there is a burgeoning demand for more sophisticated techniques such as liquid chromatography-tandem mass spectrometry (LC-MS/MS) for comprehensive BA profiling. This evolution reflects a need for nuanced diagnostic assessments in clinical practice. In canines, a BA assessment involves considering factors, such as food composition, transit times, and breed-specific variations. Multiple matrices, including blood, feces, urine, liver tissue, and gallbladder bile, offer insights into BA profiles, yet interpretations remain complex, particularly in fecal analysis due to sampling challenges and breed-specific differences. Despite ongoing efforts, a consensus regarding optimal matrices and diagnostic thresholds remains elusive, highlighting the need for further research. Emphasizing the scarcity of systematic animal studies and underscoring the importance of ap-propriate sampling methodologies, our review advocates for targeted investigations into BA alterations in canine pathology, promising insights into pathomechanisms, early disease detection, and therapeutic avenues.
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Affiliation(s)
- Krisztián Németh
- Department of Physiology and Biochemistry, University of Veterinary Medicine, István u. 2, H-1078 Budapest, Hungary; (K.N.); (D.S.K.); (V.H.); (T.B.)
| | - Ágnes Sterczer
- Department of Internal Medicine, University of Veterinary Medicine, István u. 2, H-1078 Budapest, Hungary;
| | - Dávid Sándor Kiss
- Department of Physiology and Biochemistry, University of Veterinary Medicine, István u. 2, H-1078 Budapest, Hungary; (K.N.); (D.S.K.); (V.H.); (T.B.)
| | - Réka Katalin Lányi
- Faculty of Pharmacy, University of Szeged, Zrínyi u. 9, H-6720 Szeged, Hungary;
| | - Vivien Hemző
- Department of Physiology and Biochemistry, University of Veterinary Medicine, István u. 2, H-1078 Budapest, Hungary; (K.N.); (D.S.K.); (V.H.); (T.B.)
| | - Kriszta Vámos
- Department of Internal Medicine, University of Veterinary Medicine, István u. 2, H-1078 Budapest, Hungary;
| | - Tibor Bartha
- Department of Physiology and Biochemistry, University of Veterinary Medicine, István u. 2, H-1078 Budapest, Hungary; (K.N.); (D.S.K.); (V.H.); (T.B.)
| | - Anna Buzás
- Institute of Food Chain Science, University of Veterinary Medicine, István u. 2, H-1078 Budapest, Hungary; (A.B.); (K.L.)
| | - Katalin Lányi
- Institute of Food Chain Science, University of Veterinary Medicine, István u. 2, H-1078 Budapest, Hungary; (A.B.); (K.L.)
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Song R, Hu M, Qin X, Qiu L, Wang P, Zhang X, Liu R, Wang X. The Roles of Lipid Metabolism in the Pathogenesis of Chronic Diseases in the Elderly. Nutrients 2023; 15:3433. [PMID: 37571370 PMCID: PMC10420821 DOI: 10.3390/nu15153433] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Revised: 07/26/2023] [Accepted: 07/31/2023] [Indexed: 08/13/2023] Open
Abstract
Lipid metabolism plays crucial roles in cellular processes such as hormone synthesis, energy production, and fat storage. Older adults are at risk of the dysregulation of lipid metabolism, which is associated with progressive declines in the physiological function of various organs. With advancing age, digestion and absorption commonly change, thereby resulting in decreased nutrient uptake. However, in the elderly population, the accumulation of excess fat becomes more pronounced due to a decline in the body's capacity to utilize lipids effectively. This is characterized by enhanced adipocyte synthesis and reduced breakdown, along with diminished peripheral tissue utilization capacity. Excessive lipid accumulation in the body, which manifests as hyperlipidemia and accumulated visceral fat, is linked to several chronic lipid-related diseases, including cardiovascular disease, type 2 diabetes, obesity, and nonalcoholic fatty liver disease. This review provides a summary of the altered lipid metabolism during aging, including lipid digestion, absorption, anabolism, and catabolism, as well as their associations with age-related chronic diseases, which aids in developing nutritional interventions for older adults to prevent or alleviate age-related chronic diseases.
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Affiliation(s)
- Rui Song
- College of Food Science & Nutritional Engineering, China Agricultural University, Beijing 100083, China; (R.S.); (M.H.); (X.Q.); (L.Q.)
| | - Mengxiao Hu
- College of Food Science & Nutritional Engineering, China Agricultural University, Beijing 100083, China; (R.S.); (M.H.); (X.Q.); (L.Q.)
| | - Xiyu Qin
- College of Food Science & Nutritional Engineering, China Agricultural University, Beijing 100083, China; (R.S.); (M.H.); (X.Q.); (L.Q.)
| | - Lili Qiu
- College of Food Science & Nutritional Engineering, China Agricultural University, Beijing 100083, China; (R.S.); (M.H.); (X.Q.); (L.Q.)
| | - Pengjie Wang
- Key Laboratory of Precision Nutrition and Food Quality, Department of Nutrition and Health, China Agricultural University, Beijing 100193, China; (P.W.); (X.Z.); (R.L.)
| | - Xiaoxu Zhang
- Key Laboratory of Precision Nutrition and Food Quality, Department of Nutrition and Health, China Agricultural University, Beijing 100193, China; (P.W.); (X.Z.); (R.L.)
| | - Rong Liu
- Key Laboratory of Precision Nutrition and Food Quality, Department of Nutrition and Health, China Agricultural University, Beijing 100193, China; (P.W.); (X.Z.); (R.L.)
| | - Xiaoyu Wang
- College of Food Science & Nutritional Engineering, China Agricultural University, Beijing 100083, China; (R.S.); (M.H.); (X.Q.); (L.Q.)
- Key Laboratory of Precision Nutrition and Food Quality, Department of Nutrition and Health, China Agricultural University, Beijing 100193, China; (P.W.); (X.Z.); (R.L.)
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8
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Chai LN, Wu H, Wang XJ, He LJ, Guo CF. The Mechanism of Antimicrobial Activity of Conjugated Bile Acids against Lactic Acid Bacilli. Microorganisms 2023; 11:1823. [PMID: 37512995 PMCID: PMC10386348 DOI: 10.3390/microorganisms11071823] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Revised: 07/11/2023] [Accepted: 07/12/2023] [Indexed: 07/30/2023] Open
Abstract
The mechanism underlying antimicrobial activity of conjugated bile acids against strains of lactic acid bacilli is not well understood. The purpose of this study was to investigate two typical conjugated bile acids (glycochenodeoxycholic acid and taurochenodeoxycholic acid) for their mechanisms of antimicrobial activity against four strains of different species of lactic acid bacilli at the physiological pH of the small intestine of humans. The bacterial cell membrane integrity, transmembrane potential, and transmembrane pH gradient were examined using the fluorescence probes SYTO 9 plus propidium iodide, 3,3'-dipropylthiadicarbocyanine iodide, and 5(6)-carboxyfluorescein diacetate N-succinimidyl ester, respectively. The intracellular ATP levels were measured by the firefly luciferase-based bioluminescence method. It was found that the antimicrobial activity of conjugated bile acids against the strains of lactic acid bacilli is strain-specific, and glycochenodeoxycholic acid showed significantly greater antimicrobial activity than taurochenodeoxycholic acid against the strains of lactic acid bacilli. The conjugated bile acids inhibited the growth of strains of lactic acid bacilli by disrupting membrane integrity, dissipating transmembrane potential, reducing the transmembrane pH gradient, and depleting intracellular ATP. In conclusion, the antimicrobial activity of conjugated bile acids against lactic acid bacilli is a multifactorial phenomenon. This study will provide valuable information for developing strategies to improve the ability of lactic acid bacilli to tolerate bile in vivo.
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Affiliation(s)
- Li-Na Chai
- College of Food Science and Engineering, Northwest A&F University, Yangling, Xianyang 712100, China
| | - Hua Wu
- College of Food Science and Engineering, Northwest A&F University, Yangling, Xianyang 712100, China
| | - Xue-Jiao Wang
- College of Food Science and Engineering, Northwest A&F University, Yangling, Xianyang 712100, China
| | - Li-Juan He
- College of Food Science and Engineering, Northwest A&F University, Yangling, Xianyang 712100, China
| | - Chun-Feng Guo
- College of Food Science and Engineering, Northwest A&F University, Yangling, Xianyang 712100, China
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9
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Malhotra P, Palanisamy R, Caparros-Martin JA, Falasca M. Bile Acids and Microbiota Interplay in Pancreatic Cancer. Cancers (Basel) 2023; 15:3573. [PMID: 37509236 PMCID: PMC10377396 DOI: 10.3390/cancers15143573] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Revised: 06/29/2023] [Accepted: 06/30/2023] [Indexed: 07/30/2023] Open
Abstract
Evidence suggests the involvement of the microbiota, including oral, intra-tumoral and gut, in pancreatic cancer progression and response to therapy. The gut microbiota modulates the bile acid pool and is associated with maintaining host physiology. Studies have shown that the bile acid/gut microbiota axis is dysregulated in pancreatic cancer. Bile acid receptor expression and bile acid levels are dysregulated in pancreatic cancer as well. Studies have also shown that bile acids can cause pancreatic cell injury and facilitate cancer cell proliferation. The microbiota and its metabolites, including bile acids, are also altered in other conditions considered risk factors for pancreatic cancer development and can alter responses to chemotherapeutic treatments, thus affecting patient outcomes. Altogether, these findings suggest that the gut microbial and/or bile acid profiles could also serve as biomarkers for pancreatic cancer detection. This review will discuss the current knowledge on the interaction between gut microbiota interaction and bile acid metabolism in pancreatic cancer.
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Affiliation(s)
- Pratibha Malhotra
- Metabolic Signalling Group, Curtin Health Innovation Research Institute, Curtin Medical School, Curtin University, Perth, WA 6102, Australia
| | - Ranjith Palanisamy
- Metabolic Signalling Group, Curtin Health Innovation Research Institute, Curtin Medical School, Curtin University, Perth, WA 6102, Australia
| | | | - Marco Falasca
- Metabolic Signalling Group, Curtin Health Innovation Research Institute, Curtin Medical School, Curtin University, Perth, WA 6102, Australia
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Vaaben T, Vazquez-Uribe R, Sommer MOA. Characterization of Eight Bacterial Biosensors for Microbial Diagnostic and Therapeutic Applications. ACS Synth Biol 2022; 11:4184-4192. [PMID: 36449712 PMCID: PMC9764412 DOI: 10.1021/acssynbio.2c00491] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022]
Abstract
The engineering of microbial cells to produce and secrete therapeutics directly in the human body, known as advanced microbial therapeutics, is an exciting alternative to current drug delivery routes. These living therapeutics can be engineered to sense disease biomarkers and, in response, deliver a therapeutic activity. This strategy allows for precise and self-regulating delivery of a therapeutic that adapts to the disease state of the individual patient. Numerous sensing systems have been characterized for use in prokaryotes, but a very limited number of advanced microbial therapeutics have incorporated such sensors. We characterized eight different sensors that respond to physiologically relevant conditions and molecules found in the human body in the probiotic strain Escherichia coli Nissle 1917. The resulting sensors were characterized under aerobic and anaerobic conditions and were demonstrated to be functional under gut-like conditions using the nematode Caenorhabditis elegans as an in vivo model. We show for the first time how a biosensor is able to detect in vivo the bile acid-like molecule Δ4-dafachronic acid, a small molecule in C. elegans that regulates lifespan. Furthermore, we exemplify how bacterial sensors can be used to dynamically report on changes in the intestinal environment of C. elegans, by demonstrating the use of a biosensor able to detect changes in lactate concentrations in the gut lumen of individual C. elegans. The biosensors presented in this study allow for dynamic control of expression in vivo and represent a valuable tool in further developing advanced microbiome therapeutics.
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11
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Larriba R, Roca M, Masip E, Cañada-Martínez A, Ribes-Koninckx C, Calvo-Lerma J. How macronutrients and pancreatic enzyme supplements dose variability affect fat, protein and starch absorption in children with cystic fibrosis. Dig Liver Dis 2022; 55:513-518. [PMID: 36435715 DOI: 10.1016/j.dld.2022.11.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Revised: 10/31/2022] [Accepted: 11/02/2022] [Indexed: 11/25/2022]
Abstract
BACKGROUND low evidence on the dose of enzymatic supplements used in pancreatic enzyme replacement therapy (PERT) is available. AIM assessing if fat, protein and starch absorption could be related to the dose of the enzymatic supplement, the intra-patient variability in the dose and macronutrient intake. METHODS Four-day food records and 3-day faecal samples were prospectively collected in 69 children with cystic fibrosis. Pearson correlations between enzyme dose and macronutrient absorption, and beta regression models were applied to explain the results. RESULTS the supply of protease units per protein intake (PU/g protein) in relation to lipase units per fat intake (LU/g fat) was low and the intra-patient variability in the dose of enzymes was ±1331 LU/g fat. Fat and starch absorption was >90% while for protein it was 81.5%. The coefficient of fat absorption was associated with an interaction between the dose of LU/g fat and its variability among different days. Lipid and protein intake were also determinants of the coefficient of fat absorption. CONCLUSION the dose of PERT should be re-adjusted to the amount of dietary fat of every meal (constant LU/g fat) to minimize variability and increase fat absorption. Also, the supply of protease should be increased to prevent from protein malabsorption.
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Affiliation(s)
- Raúl Larriba
- Celiac Disease and Digestive Immunopathology Research Group, Instituto de Investigación Sanitaria La Fe, 46026, València, Spain
| | - María Roca
- Celiac Disease and Digestive Immunopathology Research Group, Instituto de Investigación Sanitaria La Fe, 46026, València, Spain
| | - Etna Masip
- Celiac Disease and Digestive Immunopathology Research Group, Instituto de Investigación Sanitaria La Fe, 46026, València, Spain
| | - Antonio Cañada-Martínez
- Data Science and Biostatistics Unit, Instituto de Investigación Sanitaria La Fe, 46026, València, Spain
| | - Carmen Ribes-Koninckx
- Celiac Disease and Digestive Immunopathology Research Group, Instituto de Investigación Sanitaria La Fe, 46026, València, Spain
| | - Joaquim Calvo-Lerma
- Celiac Disease and Digestive Immunopathology Research Group, Instituto de Investigación Sanitaria La Fe, 46026, València, Spain; Institute of Agrochemistry and Food Technology, Spanish National Research Council (IATA-CSIC), Valencia, Spain.
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Baker LM, Davies TS, Masetti G, Hughes TR, Marchesi JR, Jack AA, Joyce TSC, Allen MD, Plummer SF, Michael DR, Ramanathan G, Del Sol R, Facey PD. A genome guided evaluation of the Lab4 probiotic consortium. Genomics 2021; 113:4028-4038. [PMID: 34391865 DOI: 10.1016/j.ygeno.2021.08.007] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Revised: 07/16/2021] [Accepted: 08/10/2021] [Indexed: 12/01/2022]
Abstract
In this study, we present the draft genome sequences of the Lab4 probiotic consortium using whole genome sequencing. Draft genome sequences were retrieved and deposited for each of the organisms; PRJNA559984 for B. bifidum CUL20, PRJNA482335 for Lactobacillus acidophilus CUL60, PRJNA482434 for Lactobacillus acid. Probiogenomic in silico analyses confirmed existing taxonomies and identified the presence putative gene sequences that were functionally related to the performance of each organism during in vitro assessments of bile and acid tolerability, adherence to enterocytes and susceptibility to antibiotics. Predictions of genomic stability identified no significant risk of horizontal gene transfer in any of the Lab4 strains and the absence of both antibiotic resistance and virulence genes. These observations were supported by the outcomes of acute phase and repeat dose tolerability studies in Wistar rats where challenge with high doses of Lab4 did not result in any mortalities, clinical/histopathological abnormalities nor indications of systemic toxicity. Detection of increased numbers of lactobacilli and bifidobacteria in the faeces of supplemented rats implied an ability to survive transit through the gastrointestinal tract and/or impact upon the intestinal microbiota composition. In summary, this study provides in silico, in vitro and in vivo support for probiotic functionality and the safety of the Lab4 consortium.
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Affiliation(s)
- L M Baker
- Swansea University Medical School, Swansea University, Singleton Park Campus, Swansea SA2 8PP, United Kingdom
| | - T S Davies
- Cultech Limited, Unit 2 Christchurch Road, Baglan Industrial Park, Port Talbot SA12 7BZ, United Kingdom
| | - G Masetti
- Cultech Limited, Unit 2 Christchurch Road, Baglan Industrial Park, Port Talbot SA12 7BZ, United Kingdom
| | - T R Hughes
- Systems Immunity Research Institute, Henry Welcome Building, Cardiff University, CF14 4XN, United Kingdom
| | - J R Marchesi
- Division of Digestive Diseases, Department of Metabolism, Digestion and Reproduction, Faculty of Medicine, Imperial College London, London, United Kingdom
| | - A A Jack
- Cultech Limited, Unit 2 Christchurch Road, Baglan Industrial Park, Port Talbot SA12 7BZ, United Kingdom
| | - T S C Joyce
- Cultech Limited, Unit 2 Christchurch Road, Baglan Industrial Park, Port Talbot SA12 7BZ, United Kingdom
| | - M D Allen
- Cultech Limited, Unit 2 Christchurch Road, Baglan Industrial Park, Port Talbot SA12 7BZ, United Kingdom
| | - S F Plummer
- Cultech Limited, Unit 2 Christchurch Road, Baglan Industrial Park, Port Talbot SA12 7BZ, United Kingdom
| | - D R Michael
- Cultech Limited, Unit 2 Christchurch Road, Baglan Industrial Park, Port Talbot SA12 7BZ, United Kingdom
| | - G Ramanathan
- Pharmacology based Clinical Trials, Pennington Biomedical Research Center, 6400 Perkins Rd, Baton Rouge, LA 70808, USA
| | - R Del Sol
- Swansea University Medical School, Swansea University, Singleton Park Campus, Swansea SA2 8PP, United Kingdom
| | - P D Facey
- Swansea University Medical School, Swansea University, Singleton Park Campus, Swansea SA2 8PP, United Kingdom.
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13
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Calvo-Lerma J, Boon M, Colombo C, de Koning B, Asseiceira I, Garriga M, Roca M, Claes I, Bulfamante A, Walet S, Pereira L, Ruperto M, Masip E, Asensio-Grau A, Giana A, Affourtit P, Heredia A, Vicente S, Andrés A, de Boeck K, Hulst J, Ribes-Koninckx C. Clinical evaluation of an evidence-based method based on food characteristics to adjust pancreatic enzyme supplements dose in cystic fibrosis. J Cyst Fibros 2020; 20:e33-e39. [PMID: 33279468 DOI: 10.1016/j.jcf.2020.11.016] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2020] [Revised: 11/18/2020] [Accepted: 11/20/2020] [Indexed: 12/12/2022]
Abstract
BACKGROUND Patients with cystic fibrosis (CF) and pancreatic insufficiency need pancreatic enzyme replacement therapy (PERT) for dietary lipids digestion. There is limited evidence for recommending the adequate PERT dose for every meal, and controlling steatorrhea remains a challenge. This study aimed to evaluate a new PERT dosing method supported by a self-management mobile-app. METHODS Children with CF recruited from 6 European centres were instructed to use the app, including an algorithm for optimal PERT dosing based on in vitro digestion studies for every type of food. At baseline, a 24h self-selected diet was registered in the app, and usual PERT doses were taken by the patient. After 1 month, the same diet was followed, but PERT doses were indicated by the app. Change in faecal fat and coefficient of fat absorption (CFA) were determined. RESULTS 58 patients (median age 8.1 years) participated. Baseline fat absorption was high: median CFA 96.9%, median 2.4g faecal fat). After intervention CFA did not significantly change, but range of PERT doses was reduced: interquartile ranges narrowing from 1447-3070 at baseline to 1783-2495 LU/g fat when using the app. Patients with a low baseline fat absorption (CFA<90%, n=12) experienced significant improvement in CFA after adhering to the recommended PERT dose (from 86.3 to 94.0%, p=0.031). CONCLUSION the use of a novel evidence-based PERT dosing method, based on in vitro fat digestion studies incorporating food characteristics, was effective in increasing CFA in patients with poor baseline fat absorption and could safely be implemented in clinical practice.
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Affiliation(s)
- Joaquim Calvo-Lerma
- Instituto de Investigación Sanitaria La Fe de Valencia. Cystic Fibrosis Unit. 46026 Valencia, Spain; Universitat Politècnica de València, Research Institute of Food Engineering for Development. 46022 Valencia, Spain.
| | - Mieke Boon
- Department of pediatrics, Center for Cystic Fibrosis, University Hospital Leuven. Leuven, Belgium
| | - Carla Colombo
- CF Center, Università degli Studi di Milano. Fondazione IRCCS Ca' Granda, Ospedale Maggiore Policlinico. 20122 Milan, Italy
| | - Barbara de Koning
- Department of Pediatrics, div of Gastro-Enterology and div of Respiratory Medicine and Allergology, Erasmus MC- Sophia Children's Hospital, University Hospital Rotterdam. Rotterdam, the Netherlands
| | - Inês Asseiceira
- Centro de Fibrose Quística, Hospital de Santa Maria, Lisboa. Lisbon, Portugal
| | - Maria Garriga
- Hospital Universitario Ramón y Cajal. Cystic Fibrosis Unit. 28034 Madrid, Spain
| | - Maria Roca
- Instituto de Investigación Sanitaria La Fe de Valencia. Cystic Fibrosis Unit. 46026 Valencia, Spain
| | - Ine Claes
- Department of pediatrics, Center for Cystic Fibrosis, University Hospital Leuven. Leuven, Belgium
| | - Anna Bulfamante
- CF Center, Università degli Studi di Milano. Fondazione IRCCS Ca' Granda, Ospedale Maggiore Policlinico. 20122 Milan, Italy
| | - Sylvia Walet
- Department of Pediatrics, div of Gastro-Enterology and div of Respiratory Medicine and Allergology, Erasmus MC- Sophia Children's Hospital, University Hospital Rotterdam. Rotterdam, the Netherlands
| | - Luisa Pereira
- Centro de Fibrose Quística, Hospital de Santa Maria, Lisboa. Lisbon, Portugal
| | - Mar Ruperto
- Hospital Universitario Ramón y Cajal. Cystic Fibrosis Unit. 28034 Madrid, Spain
| | - Etna Masip
- Instituto de Investigación Sanitaria La Fe de Valencia. Cystic Fibrosis Unit. 46026 Valencia, Spain
| | - Andrea Asensio-Grau
- Universitat Politècnica de València, Research Institute of Food Engineering for Development. 46022 Valencia, Spain
| | - Arianna Giana
- CF Center, Università degli Studi di Milano. Fondazione IRCCS Ca' Granda, Ospedale Maggiore Policlinico. 20122 Milan, Italy
| | - Philine Affourtit
- Department of Pediatrics, div of Gastro-Enterology and div of Respiratory Medicine and Allergology, Erasmus MC- Sophia Children's Hospital, University Hospital Rotterdam. Rotterdam, the Netherlands
| | - Ana Heredia
- Universitat Politècnica de València, Research Institute of Food Engineering for Development. 46022 Valencia, Spain
| | - Saioa Vicente
- Hospital Universitario Ramón y Cajal. Cystic Fibrosis Unit. 28034 Madrid, Spain
| | - Ana Andrés
- Universitat Politècnica de València, Research Institute of Food Engineering for Development. 46022 Valencia, Spain
| | - Kris de Boeck
- Department of pediatrics, Center for Cystic Fibrosis, University Hospital Leuven. Leuven, Belgium
| | - Jessie Hulst
- Department of Pediatrics, div of Gastro-Enterology and div of Respiratory Medicine and Allergology, Erasmus MC- Sophia Children's Hospital, University Hospital Rotterdam. Rotterdam, the Netherlands; Division of Gastroenterology, Hepatology and Nutrition, The Hospital for Sick Children, Toronto, Canada
| | - Carmen Ribes-Koninckx
- Instituto de Investigación Sanitaria La Fe de Valencia. Cystic Fibrosis Unit. 46026 Valencia, Spain
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14
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Asensio-Grau A, Calvo-Lerma J, Heredia A, Andrés A. In vitro digestion of salmon: Influence of processing and intestinal conditions on macronutrients digestibility. Food Chem 2020; 342:128387. [PMID: 33097324 DOI: 10.1016/j.foodchem.2020.128387] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Revised: 09/13/2020] [Accepted: 10/10/2020] [Indexed: 01/02/2023]
Abstract
Salmon is the main dietary source of omega-3 lipids and contains high-biological value protein. However, processing techniques could affect macronutrient digestibility. Also, altered intestinal conditions, particularly given in pancreatic insufficiency, could threaten digestibility. This study tested both hypotheses by subjecting raw, marinated and microwave-cooked salmon to static in vitro digestion under healthy (pH 7, bile concentration 10 mM) and altered (pH 6, bile 1 or 10 mM) intestinal conditions with different pancreatin concentrations. In the standard conditions, proteolysis was not affected by processing, but lipolysis decreased in marinated (46%) and raw salmon (57%) compared to the cooked matrix (67%). In altered conditions, proteolysis and lipolysis decreased to different extents depending on the treatment. Overall, processing affected proteolysis the most (f-ratio = 5.86), while intestinal conditions were the major determinants of lipolysis (f-ratio = 58.01). This study could set the ground to establish dietary recommendations of salmon for specific population groups.
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Affiliation(s)
- Andrea Asensio-Grau
- Instituto de Ingeniería de Alimentos para el Desarrollo, Universitat Politècnica de València, Camino de Vera s/n, 46022 València, Spain.
| | - Joaquim Calvo-Lerma
- Instituto de Ingeniería de Alimentos para el Desarrollo, Universitat Politècnica de València, Camino de Vera s/n, 46022 València, Spain
| | - Ana Heredia
- Instituto de Ingeniería de Alimentos para el Desarrollo, Universitat Politècnica de València, Camino de Vera s/n, 46022 València, Spain
| | - Ana Andrés
- Instituto de Ingeniería de Alimentos para el Desarrollo, Universitat Politècnica de València, Camino de Vera s/n, 46022 València, Spain
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15
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Calvo-Lerma J, Asensio-Grau A, Heredia A, Andrés A. Lessons learnt from MyCyFAPP Project: Effect of cystic fibrosis factors and inherent-to-food properties on lipid digestion in foods. Food Res Int 2020; 133:109198. [DOI: 10.1016/j.foodres.2020.109198] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2019] [Revised: 02/07/2020] [Accepted: 03/23/2020] [Indexed: 12/14/2022]
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Impact of Processing and Intestinal Conditions on in Vitro Digestion of Chia ( Salvia hispanica) Seeds and Derivatives. Foods 2020; 9:foods9030290. [PMID: 32150813 PMCID: PMC7143566 DOI: 10.3390/foods9030290] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Revised: 02/24/2020] [Accepted: 03/01/2020] [Indexed: 02/07/2023] Open
Abstract
Chia seeds present with an excellent nutrient profile, including polyunsaturated fat, protein, fibre and bioactive compounds, which make them a potential food or ingredient to bring beneficial health effects. However, their tough structure could mean that these seeds remain hardly disrupted during digestion, thus preventing the release and digestibility of nutrients. In the present study, different chia products (seeds, whole flour, partially defatted flour and sprouts) were assessed in terms of proteolysis, lipolysis, calcium and polyphenols bioaccessibility and antioxidant activity. In vitro digestions were performed supporting standard intestinal (pH 7, bile salts concentration 10 mM) and altered (pH 6, bile salts concentration 1 mM) conditions. The altered conditions significantly reduced lipolysis, but not proteolysis. Regarding the food matrix, compared to the chia seeds, whole and partially defatted flour increased the hydrolysis of lipids and protein, relating to reduced particle size. Sprouting had an enhancing effect on proteolysis but prevented lipolysis. Calcium bioaccessibility dropped in all the samples in the two intestinal conditions. The digestion process led to increased polyphenols bioaccessibility in all the structures, but reduced antioxidant activity except in the milled structures. In conclusion, milling should be applied to chia seeds prior to consumption in cases where enhancing the potential uptake of macro and micronutrients is targeted, and sprouting is suitable to enhance protein digestibility and reduce lipolysis.
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17
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Screening the impact of food co-digestion on lipolysis under sub-optimal intestinal conditions. Lebensm Wiss Technol 2020. [DOI: 10.1016/j.lwt.2019.108792] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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18
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In vitro study of cheese digestion: Effect of type of cheese and intestinal conditions on macronutrients digestibility. Lebensm Wiss Technol 2019. [DOI: 10.1016/j.lwt.2019.108278] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Calvo-Lerma J, Fornés-Ferrer V, Heredia A, Andrés A. In vitro digestion models to assess lipolysis: The impact of the simulated conditions of gastric and intestinal pH, bile salts and digestive fluids. Food Res Int 2019; 125:108511. [PMID: 31554063 DOI: 10.1016/j.foodres.2019.108511] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2019] [Revised: 05/31/2019] [Accepted: 06/21/2019] [Indexed: 10/26/2022]
Abstract
In vitro digestion models are a valid methodology to study nutrient hydrolysis by simulating standard physiological gastrointestinal conditions. However, there are pathologies in which some conditions are affected, which should be considered in the design of an in vitro digestion study. Our work aims at elucidating the role of different gastrointestinal conditions on lipolysis. In the context of exocrine pancreatic insufficiency, gastric pH, intestinal pH, bile salts composition, bile salts concentration, fat concentration in the digestion medium and volumetric ratio digestion fluid/food were the selected study parameters. The pH-stat method was applied to assess lipolysis extent and kinetics. Descriptive results were summarised in digestibility curves and beta regression models were used to explain the effect (odds ratio, OR) of the studied conditions on lipolysis. Additionally, distribution of emulsion droplets was measured and optical microscopy images of fat globules were taken in a selection of experimental conditions. Results showed that intestinal pH was the variable with the highest effect on lipolysis (OR 22.86, p < 0.001), followed by fat concentration in the digestion medium (OR 6.76, p < 0.001) and bile salts concentration (OR 1.56, p < 0.001). Overall, lipolysis was significantly associated with particle size (OR - 6.98, p < 0.001). We conclude that the assessment of lipolysis by means of in vitro digestion models is sensitive to the simulated gastrointestinal conditions, which should be adapted to the real physiological conditions occurring in altered health conditions.
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Affiliation(s)
- Joaquim Calvo-Lerma
- Universitat Politècnica de València, Instituto de Ingeniería de Alimentos para el Desarrollo, Spain; Instituto de Investigación Sanitaria La Fe, Spain.
| | | | - Ana Heredia
- Universitat Politècnica de València, Instituto de Ingeniería de Alimentos para el Desarrollo, Spain
| | - Ana Andrés
- Universitat Politècnica de València, Instituto de Ingeniería de Alimentos para el Desarrollo, Spain
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Abstract
PURPOSE OF REVIEW Chronic diarrhoea remains a diagnostic challenge, with numerous causes and few effective symptomatic treatments. This review focuses on new methods for diagnosis of common disorders and alerts readers to rarer causes through a systematic approach to the underlying mechanisms. RECENT FINDINGS New strategies are emerging to stratify the need for endoscopic investigation. Faecal immunochemical testing, combined with standard blood tests, shows promise in excluding colorectal cancers, adenoma and inflammatory bowel disease, challenging the current use of faecal calprotectin. Serum analysis for markers of bile acid synthesis has been refined, potentially streamlining diagnostic pathways of bile acid malabsorption for those who are unable to access nuclear medicine scans, but the positive predictive value of faecal elastase in low prevalence populations has been questioned. Novel markers such as volatile organic compounds and stool DNA analyses continue to develop. SUMMARY A systematic approach to investigation of chronic diarrhoea will ensure all relevant causes are considered and minimize the chance of a missed diagnosis. Combination of clinical features with noninvasive testing supports a judicious approach to endoscopic investigations but further innovation will be needed to resolve the diagnostic challenge that diarrhoea poses.
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Calvo-Lerma J, Hulst J, Boon M, Colombo C, Masip E, Ruperto M, Fornés-Ferrer V, van der Wiel E, Claes I, Garriga M, Roca M, Crespo-Escobar P, Bulfamante A, Woodcock S, Martínez-Barona S, Andrés A, de Boeck K, Ribes-Koninckx C. Clinical validation of an evidence-based method to adjust Pancreatic Enzyme Replacement Therapy through a prospective interventional study in paediatric patients with Cystic Fibrosis. PLoS One 2019; 14:e0213216. [PMID: 30861039 PMCID: PMC6413926 DOI: 10.1371/journal.pone.0213216] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2018] [Accepted: 02/15/2019] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND A method to adjust Pancreatic Enzyme Replacement Therapy in Cystic Fibrosis is not currently available. OBJECTIVES To assess the in vivo efficacy of a method to adjust the dose of enzymatic supplement in CF extrapolated from previous in vitro digestion studies (theoretical optimal dose, TOD). Secondly, to assess how individual patient characteristics influence the expected coefficient of fat absorption (CFA) and thus to identify an individual correction factor to improve TOD. METHODS A prospective interventional study in 43 paediatric patients with CF from 5 European centres. They followed a 24h fixed diet with the theoretical optimal dose for each meal. Faecal collection was carried out between colorimetric markers in order to include all the faeces corresponding to the fixed diet. Beta regression models were applied to assess the associations of individual patient characteristics with the CFA. RESULTS Median CFA was 90% (84, 94% 1st, 3rd Q.) with no significant differences among centres. Intestinal transit time was positively associated with CFA (p = 0.007), but no statistical associations were found with and age, gender, phenotype or BMI. Regression model showed no improvement of the in vitro predicted theoretical optimal dose when taking individual patient characteristics into account. CONCLUSION Strict adherence to the theoretical optimal dose of enzymatic supplement for a prescribed meal, led to median CFA levels at the clinical target of 90% with a low variability between patients. The proposed method can be considered as a first approach for an evidence-based method in PERT dosing based on food characteristics. Results have to be confirmed in free dietary settings.
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Affiliation(s)
- Joaquim Calvo-Lerma
- Instituto de Investigación Sanitaria La Fe de Valencia, Valencia, Spain
- Universitat Politècnica de València, Research Institute of Food Engineering for Development, Valencia, Spain
| | - Jessie Hulst
- Erasmus Medical Center, Sophia Children’s Hospital, GD Rotterdam, the Netherlands
| | - Mieke Boon
- Pediatric Pulmonology and Cystic Fibrosis Unit, Department of Pediatrics, University Hospitals Leuven, Leuven, Belgium
| | - Carla Colombo
- CF Center, Università degli Studi di Milano, Fondazione IRCCS Ca’ Granda, Ospedale Maggiore Policlinico, Via Commenda 9, Milan, Italy
| | - Etna Masip
- Instituto de Investigación Sanitaria La Fe de Valencia, Valencia, Spain
| | - Mar Ruperto
- Hospital Universitario Ramón y Cajal, Carretera Colmenar Viejo km 9, Madrid, Spain
| | | | - Els van der Wiel
- Erasmus Medical Center, Sophia Children’s Hospital, GD Rotterdam, the Netherlands
| | - Ine Claes
- Pediatric Pulmonology and Cystic Fibrosis Unit, Department of Pediatrics, University Hospitals Leuven, Leuven, Belgium
| | - Maria Garriga
- Hospital Universitario Ramón y Cajal, Carretera Colmenar Viejo km 9, Madrid, Spain
| | - Maria Roca
- Instituto de Investigación Sanitaria La Fe de Valencia, Valencia, Spain
| | | | - Anna Bulfamante
- CF Center, Università degli Studi di Milano, Fondazione IRCCS Ca’ Granda, Ospedale Maggiore Policlinico, Via Commenda 9, Milan, Italy
| | - Sandra Woodcock
- Erasmus Medical Center, Sophia Children’s Hospital, GD Rotterdam, the Netherlands
| | | | - Ana Andrés
- Universitat Politècnica de València, Research Institute of Food Engineering for Development, Valencia, Spain
| | - Kris de Boeck
- Pediatric Pulmonology and Cystic Fibrosis Unit, Department of Pediatrics, University Hospitals Leuven, Leuven, Belgium
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Variations in gastrointestinal lipases, pH and bile acid levels with food intake, age and diseases: Possible impact on oral lipid-based drug delivery systems. Adv Drug Deliv Rev 2019; 142:3-15. [PMID: 30926476 DOI: 10.1016/j.addr.2019.03.005] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2018] [Revised: 02/27/2019] [Accepted: 03/25/2019] [Indexed: 12/21/2022]
Abstract
The lipids and some surfactants present in oral lipid-based drug delivery systems are potential substrates for the various lipases involved in gastrointestinal (GI) lipolysis. The levels of these enzymes, together with pH and biliairy secretion, are important parameters that condition the fate of lipid-based formulations (LBF) and the dispersion, solubilization and absorption of lipophilic drugs in the GI tract. Since in vitro methods of digestion are now combined with dissolution assays for a better assessment of LBF performance, it is essential to have a basic knowledge on lipase, pH and bile acid (BA) levels in vivo to develop relevant in vitro models. While these parameters and their variations in healthy subjects are today well documented, in vivo data on specific populations (age groups, patients with various diseases, patients with treatment affecting GI tract parameters, …) are scarce and obtaining them from clinical studies is sometimes difficult due to ethical limitations. Here we collected some in vivo data already available on the levels of digestive lipases, gastric and intestinal pH, and BAs at various ages and in patients with exocrine pancreatic insufficiency, a pathological situation that leads to drastic changes in GI tract parameters and impacts pharmacological treatments.
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Calvo-Lerma J, Fornés-Ferrer V, Peinado I, Heredia A, Ribes-Koninckx C, Andrés A. A first approach for an evidence-based in vitro digestion method to adjust pancreatic enzyme replacement therapy in cystic fibrosis. PLoS One 2019; 14:e0212459. [PMID: 30794618 PMCID: PMC6386532 DOI: 10.1371/journal.pone.0212459] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2018] [Accepted: 02/01/2019] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND Patients with cystic fibrosis have to take enzymatic supplements to allow for food digestion. However, an evidence-based method to adjust Pancreatic Enzyme Replacement Therapy (PERT) is inexistent, and lipid content of meals is used as a rough criterion. OBJECTIVE In this study, an in vitro digestion model was set up to determine the theoretical optimal dose (TOD) of enzymatic supplement for a selection of foods, which is the dose that allows for maximum lipolysis extent. METHODS A static in vitro digestion model was applied to simulate digestion of eight foods covering a wide range of lipid contents. First, the dose of the enzymatic supplement was fixed at 2000 lipase units per gram of fat (LU/g fat) using intestinal pH and bile salt concentration as variables. Second, intestinal pH and bile salt concentrations were fixed and the variable was the dose of the enzymatic supplement. Lipolysis extent was determined by measuring the free fatty acids released from initial triglycerides content of foods after digestion. Results in terms of percentage of lipolysis extent were fitted into a linear-mixed segmented model and the deducted equations were used to predict the TOD to reach 90% of lipolysis in every food. In addition, the effect of intestinal pH and bile salt concentration were investigated. RESULTS The predictive equations obtained for the assessed foods showed that lipolysis was not only dependent on the dose of the enzyme supplement or the lipid content. Moreover, intestinal pH and bile salt concentration had significant effects on lipolysis. Therefore an evidence-based model can be developed taking into account these variables. CONCLUSIONS Depending on food characteristics, a specific TOD should be assigned to achieve an optimal digestion extent. This work represents a first step towards an evidence-based method for PERT dosing, which will be applied in an in vivo setting to validate its efficacy.
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Affiliation(s)
- Joaquim Calvo-Lerma
- Universitat Politècnica de València, Research Institute of Food Engineering for Development, Valencia, Spain
- Instituto de Investigación Sanitaria La Fe de Valencia, Valencia, Spain
| | | | - Irene Peinado
- Universitat Politècnica de València, Research Institute of Food Engineering for Development, Valencia, Spain
| | - Ana Heredia
- Universitat Politècnica de València, Research Institute of Food Engineering for Development, Valencia, Spain
| | | | - Ana Andrés
- Universitat Politècnica de València, Research Institute of Food Engineering for Development, Valencia, Spain
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