The objectives of this study were to determine the effects of intravenous infusions of L-glutamine (Gln) on the autophagy and apoptosis of duodenum cells in early-weaned calves. Holstein male calves were weaned at day 35 (20 male calves, birth weight 43 ± 1.8 kg; 35 ± 3 d of age) and randomly allocated to four treatments (5 calves/treatment). The treatments were: (1) infusion of NaCl, representing the control group (C); (2) infusion of 10 g/d of Gln solution (L); (3) infusion of 20 g/d of Gln solution (M); and (4) infusion of 40 g/d of Gln solution (H). The solutions were infused for 2 h daily for 3 consecutive days after weaning. All calves were killed on the third day post-weaning. The results showed that the autophagy level of the duodenal cells was increased as the Gln infusions increased from 0 to 20 g/d and dropped with a further increase in dose (40 g/d). We also found that the level of apoptosis was decreased with Gln infusion from 0 to 20 g/d and rose as the dose increased to 40 g/d. This knowledge provides a reference for weaned calf health management.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6680711 | PMC |
| http://dx.doi.org/10.3390/ani9070404 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
AbaComplex Enhances Mitochondrial Biogenesis and Adipose Tissue Browning: Implications for Obesity and Glucose Regulation.
Foods
December 2024
Inventia Biotech-Healthcare Food Research Center s.r.l., Strada Statale Sannitica KM 20.700, 81020 Caserta, Italy.
Adipose tissue, particularly white adipose tissue (WAT), plays a central role in energy storage and metabolic regulation. Excess WAT, especially visceral fat, is strongly linked to metabolic disorders such as obesity and type 2 diabetes. The browning of WAT, whereby white fat cells acquire characteristics of brown adipose tissue (BAT) with enhanced thermogenic capacity, represents a promising strategy to enhance metabolic health.
View Article and Find Full Text PDFAssessment of blood sampling time points to determine the relative bioavailability of ruminally protected methionine supplements using the plasma free amino acid dose-response technique.
JDS Commun
November 2024
Department of Agriculture, Nutrition, and Food Systems, University of New Hampshire, Durham, NH 03824.
The calculation of the relative bioavailability (RBV) of rumen-protected AA supplements using the plasma free AA dose-response technique currently relies on blood samples obtained 2, 4, 6, and 8 h after the 0500 h feeding during the last 3 d of each period in Latin square experiments with cows fed every 8 h (0500, 1300, and 2100 h). The objective of this study was to determine if this current blood sampling protocol captures the changes that may occur in plasma Met concentrations within a 24-h day to adequately determine the RBV of Met from Smartamine M (SM). Five multiparous lactating Holstein cows were used in a 5 × 5 Latin square design with 7-d periods.
View Article and Find Full Text PDFRumen-protected methionine supplementation improves lactation performance and alleviates inflammation during a subclinical mastitis challenge in lactating dairy cows.
J Dairy Sci
December 2024
School of Animal Science, Virginia Tech, Blacksburg, VA 24061. Electronic address:
This study aimed to evaluate the effects of rumen-protected Met on lactation performance, inflammation, and immune response, and liver glutathione of lactating dairy cows during a subclinical mastitis challenge (SMC). Thirty-two Holstein cows (145 ± 51 DIM) were enrolled in a randomized complete block design. At -21 d relative to the SMC, cows were assigned to dietary treatments, and data were collected before and during the SMC.
View Article and Find Full Text PDFInterleukin-15-armoured GPC3 CAR T cells for patients with solid cancers.
Nature
January 2025
Texas Children's Cancer Center, Department of Pediatrics, Baylor College of Medicine, Houston, TX, USA.
Interleukin-15 (IL-15) promotes the survival of T lymphocytes and enhances the antitumour properties of chimeric antigen receptor (CAR) T cells in preclinical models of solid neoplasms in which CAR T cells have limited efficacy. Glypican-3 (GPC3) is expressed in a group of solid cancers, and here we report the evaluation in humans of the effects of IL-15 co-expression on GPC3-expressing CAR T cells (hereafter GPC3 CAR T cells). Cohort 1 patients ( NCT02905188 and NCT02932956 ) received GPC3 CAR T cells, which were safe but produced no objective antitumour responses and reached peak expansion at 2 weeks.
View Article and Find Full Text PDFA Randomized Trial of Drug Route in Out-of-Hospital Cardiac Arrest.
N Engl J Med
January 2025
From the Warwick Medical School, Clinical Trials Unit, University of Warwick (K.C., C.J., J.P.N., J.B.L., J.M.M., F.M., C.N., H.N., A.-M.S., M.A.S., K.R.S., S.W., R.L., G.D.P.), and the Critical Care Unit, University Hospital Coventry and Warwickshire NHS Trust (M.A.S.), Coventry, Devon Air Ambulance (N.L., B.T.) and South Western Ambulance Service NHS Foundation Trust (R.O., S.W.), Exeter, East Midlands Ambulance Service NHS Trust, Nottingham (R.E.S.S., G.L.S., G.A.W.), East of England Ambulance Service NHS Trust, Cambridge (S.B., T.F.), Kingston University (T.Q.) and London Ambulance Service NHS Trust (R.T.F., J.K., J.F., A.M.-S.), London, North East Ambulance Service NHS Foundation Trust, Newcastle upon Tyne (K.C., E.B., M.L.), North West Ambulance Service NHS Trust, Bolton (S.B., A. Wright, M.W.), South Central Ambulance Service NHS Foundation Trust, Bicester (C.D.D., M.B., A.C., V.D.), South East Coast Ambulance Service NHS Foundation Trust, Crawley (G.B., J.W.), Welsh Ambulance Services University NHS Trust, Cwmbran (C.M., N.R.), West Midlands Ambulance Service University NHS Foundation Trust, Brierley Hill (A. Walker, C.E., J.M., J.V.W.), the Critical Care Unit, University Hospitals Birmingham NHS Foundation Trust, Birmingham (G.D.P., K.C.), the Emergency Department, Harrogate and District NHS Foundation Trust, Harrogate (A. Walker), the Department of Anaesthesia, Royal United Hospitals Bath NHS Foundation Trust, Bath (J.P.N.), University Hospital Southampton NHS Foundation Trust, Southampton (C.D.D.), and the University of Bristol, Bristol (J.P.N.) - all in the United Kingdom.
Background: In patients with out-of-hospital cardiac arrest, the effectiveness of drugs such as epinephrine is highly time-dependent. An intraosseous route of drug administration may enable more rapid drug administration than an intravenous route; however, its effect on clinical outcomes is uncertain.
Methods: We conducted a multicenter, open-label, randomized trial across 11 emergency medical systems in the United Kingdom that involved adults in cardiac arrest for whom vascular access for drug administration was needed.
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!