Long-term persistence of cross-feeding
Ontology highlight
ABSTRACT:
PROVIDER: PRJEB43101 | ENA |
REPOSITORIES: ENA
Similar Datasets
Project description:The salmon fry was sampled at day 0 (before initial feeding) and day 1 (20h after initial feeding). The fish was about 0.2g, liver and pyloric caeca were dissected and used for RNA-seq. Fish was given standard commercial diets with high PUFA.
2018-12-29 | E-MTAB-7312 | biostudies-arrayexpress
Project description:After surgery for oesophageal (gullet) or gastric (stomach) cancer, patients are routinely fed by means of a small feeding tube into the intestine (jejunostomy, JEJ) while they are in hospital. Current practice is to stop feeding once the patient leaves hospital, although the tube is left in place for the first 6 weeks. Most patients lose weight after surgery and have to learn to adjust to new eating habits and behaviours. A few patients have the JEJ feed restarted because of nutritional problems and this requires a further inpatient stay.
It is unknown whether every patient would benefit from this type of feeding at home. Previous studies have only assessed the value of JEJ feeding while patients are still in hospital. There is little known about the benefit of continuing JEJ feeding after discharge from hospital, although home feeding is not uncommon in other patient groups (eg. after a stroke).
The proposed study will provide initial information on patients’ well being by measuring quality of life and factors such as change in body weight and dietary intake following a period of home JEJ feeding after surgery. Subjects recruited into the study will be placed, randomly, into a control group who receive current nutritional care (based on dietary advice and oral nutritional supplement drinks) or an intervention group who will receive home JEJ feeding for 6 weeks after hospital discharge, in addition to current treatment.
If subjects in the control group are experiencing problems eating at home, home feeding through the JEJ tube will be started as needed.
The study will also examine how surgery and JEJ feeding at home impact on the patient and carer(s) by means of questionnaires and interviews conducted in the patients’ home.
Information obtained will assist in the design of a multicentre study. This intervention is considered important because it has the potential to benefit thousands of patients each year at a modest cost.
| 2146124 | ecrin-mdr-crc
Project description:Gene expression microarray experiment comparing differential expression across a developmental and metabolic trajectory of diapause termination. Six phenotypes representing 6 developmental time points, four replicate individuals for each phenotype, four competitve hybridizations for each of six phenotypic comparisons. Each individual was hybridized up to 3 times, each in a separate phenotypic comparison. Phenotypes: 24Fridge = early diapause (24 hours after transfer from fridge to 24C) LateDia = late diapause (2 weeks after transfer from fridge to 24C) Break24 = 24 hours after initial metabolic rate increase Break48 = 48 hours after initial metabolic rate increase Plat = in the metabolic rate plateau PostPlat = in the final, exponential phase of metabolic rate increase
2011-09-30 | E-GEOD-30785 | biostudies-arrayexpress
Project description:Interventions: -
Primary outcome(s): Feeding strategy (tube feeding, tpn) and duration in days
Study Design: Open (masking not used), N/A , unknown, Other
| 19118 | ecrin-mdr-crc
Project description:Time-restricted feeding improves metabolic health independently of dietary macronutrient composition or energy restriction. To understand the mechanisms underpinning the effects of time-restricted feeding, we investigated the metabolic and transcriptomic profile of skeletal muscle and serum samples from 11 overweight/obese men. In muscle, 4-10% of transcripts and 14% of metabolites were periodic, with the amplitude of the metabolites lower after time-restricted feeding. Core clock genes were unaltered by either intervention, while time-restricted feeding induced rhythmicity of genes related to lipid and amino acid transport. In serum, 49-65% of the metabolites had diurnal rhythms across both conditions, with the majority being lipids. Time-restricted feeding shifted the skeletal muscle metabolite profile from predominantly lipids to amino acids. Our results show time-restricted feeding differentially affects the amplitudes and rhythmicity of serum and skeletal muscle metabolites, and regulates the rhythmicity of genes controlling lipid and amino acid transport, without perturbing the core clock.
2020-07-10 | GSE129843 | GEO
Project description:Using standardized, semipurified diets is a crucial factor for reproducibility of experimental nutritional studies. For the purpose of comparability and integration of research, two European consortia, Mitofood and BIOCLAIMS, proposed an AIN-93-based standard reference diet, the standardized BIOCLAIMS low-fat diet (LFD) as well as a high-fat diet (HFD). In order to evaluate the BIOCLAIMS LFD and HFD, we performed short-term (5 days) and long-term (12 weeks) feeding experiments using male C57BL/6 mice. The HFD has the same composition as the LFD except the fat content is increased to 40% energy in exchange for carbohydrates. Both diets were accepted by the animals and proof of principle was given that the BIOCLAIMS HFD increases body weight and body fat and affects glucose homeostasis. Short-term feeding trials (5 days) were performed in order to identify metabolic and molecular parameters which can serve as acute predictors for metabolic disorders due to high-fat diet-induced obesity. We analyzed gene expression in gonadal white adipose tissue of short- and long-term fed animals with whole genome microarrays. The BIOCLAIMS HFD strongly influenced gene expression in white adipose tissue after short- and long-term intervention. A total number of 973 and 4678 transcripts were significantly different between both diets after 5 days feeding and 12 weeks feeding, respectively. A total number of 764 transcripts encoding 549 genes were significantly differentially regulated between LF and HF animals after 12 weeks feeding as well as after 5 days feeding. Of these 549 overlapping genes, a substantial number (434 genes) were expressed at a lower level and 115 genes were expressed at a higher level in the HF mice compared to the LF mice. Without exception, all genes were regulated equally. Pathway analysis revealed a prominent role for genes involved in lipid metabolism, carbohydrate metabolism and oxidative phosphorylation. This was confirmed by quantitative real-time reverse transcription PCR. The high predictive value of gene expression changes in our short-term study compared to long-term high fat feeding is a promising step to get well-defined, early biomarkers that could shorten animal trials considerably and allow a more rapid and efficient screening of different compounds.
2013-08-27 | GSE38337 | GEO
Project description:The economic importance of wheat and its contribution to human and livestock diets has been already demonstrated. However, wheat production is impacted by pests that induce yield reductions. Among these pests, wheat curl mite (WCM, Aceria tosichella Keifer) impacts wheat all around the world. WCM are tiny pests that feed within the whorl of developing leaves and prevent the leaves from unfurling by causing leaves curling. The curling of the leaves provides a protective niche for the WCM. Additionally, WCM are also the vector of serious viruses in wheat. Little is known regarding the impact of the WCM on wheat transcriptome, and to date, only one article has been published describing the wheat transcriptomic changes after 1 day of WCM feeding. To better understand the wheat transcriptome variation after long-term feeding by WCM (10 days post infestation (dpi)), we used an RNA-seq approach. We collected leaves uninfested and infested with WCR from two wheat cultivars: Byrd (WCM resistant) and Settler CL (WCM susceptible) at 10 dpi. Our transcriptomic analysis revealed the common and specific transcriptomic variations in WCM resistant and susceptible wheat cultivars, chromosome specific location of the differentially expressed genes, and also identified the gene functions and pathways involved in WCM resistance. Collectively, our study provides important insights on wheat defense mechanisms against WCM after long-term feeding.
2023-02-01 | GSE195958 | GEO
Project description:Using standardized, semipurified diets is a crucial factor for reproducibility of experimental nutritional studies. For the purpose of comparability and integration of research, two European consortia, Mitofood and BIOCLAIMS, proposed an AIN-93-based standard reference diet, the standardized BIOCLAIMS low-fat diet (LFD) as well as a high-fat diet (HFD). In order to evaluate the BIOCLAIMS LFD and HFD, we performed short-term (5 days) and long-term (12 weeks) feeding experiments using male C57BL/6 mice. The HFD has the same composition as the LFD except the fat content is increased to 40% energy in exchange for carbohydrates. Both diets were accepted by the animals and proof of principle was given that the BIOCLAIMS HFD increases body weight and body fat and affects glucose homeostasis. Short-term feeding trials (5 days) were performed in order to identify metabolic and molecular parameters which can serve as acute predictors for metabolic disorders due to high-fat diet-induced obesity. We analyzed gene expression in gonadal white adipose tissue of short- and long-term fed animals with whole genome microarrays. The BIOCLAIMS HFD strongly influenced gene expression in white adipose tissue after short- and long-term intervention. A total number of 973 and 4678 transcripts were significantly different between both diets after 5 days feeding and 12 weeks feeding, respectively. A total number of 764 transcripts encoding 549 genes were significantly differentially regulated between LF and HF animals after 12 weeks feeding as well as after 5 days feeding. Of these 549 overlapping genes, a substantial number (434 genes) were expressed at a lower level and 115 genes were expressed at a higher level in the HF mice compared to the LF mice. Without exception, all genes were regulated equally. Pathway analysis revealed a prominent role for genes involved in lipid metabolism, carbohydrate metabolism and oxidative phosphorylation. This was confirmed by quantitative real-time reverse transcription PCR. The high predictive value of gene expression changes in our short-term study compared to long-term high fat feeding is a promising step to get well-defined, early biomarkers that could shorten animal trials considerably and allow a more rapid and efficient screening of different compounds. C57BL/6J wildtype male mice, aged 12 weeks, received a low-fat diet or a high-fat diet for 5 days or 12 weeks. After sacrification, white adipose tissue depots were dissected, and immediately snap frozen in liquid nitrogen. Total RNA was isolated, quantified and qualified, and subsequently used for global gene expression profiling using Agilent 4x44K microarrays.
2013-08-27 | E-GEOD-38337 | biostudies-arrayexpress
Project description:Farmed and wild Atlantic salmon was given either vegetable oil (low DHA and EPA) feed or fish oil (high in DHA and EPA) feed or phospholipid (high in phospholipid) feed from start of feeding. We sampled and RNAseq two tissues (pyloric caeca and liver) on day 0, day 48, day 65 and day 94 after initial feeding.
2019-10-30 | E-MTAB-8306 | biostudies-arrayexpress