Objective: Information is needed to guide the design of randomized controlled trials (RCTs) evaluating L-citrulline as a therapy for premature infants with pulmonary hypertension associated with bronchopulmonary dysplasia (BPD-PH). Our goal was to evaluate the tolerability and ability to achieve a target steady-state L-citrulline plasma concentration in prematures treated enterally with a multi-dose L-citrulline strategy based on our single-dose pharmacokinetic study.
Study Design: Six prematures received 60 mg/kg of L-citrulline every 6 hours for 72 hours. Plasma L-citrulline concentrations were measured before the first and last L-citrulline doses. L-citrulline concentrations were compared to concentration-time profiles from our previous study.
Results: Plasma L-citrulline concentrations agreed with the simulated concentration-time profiles. No serious adverse events occurred.
Conclusions: Simulations based on single-doses can be used to predict target multi-dose plasma L-citrulline concentrations. These results assist the design of RCTs evaluating the safety and effectiveness of L-citrulline therapy for BPD-PH. Clinical trials.gov ID: NCT03542812.
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http://dx.doi.org/10.21203/rs.3.rs-3006963/v1 | DOI Listing |
J Anim Sci Biotechnol
January 2025
Department of Animal Science, Texas A&M University, College Station, Texas, 77843, USA.
Background: Meat goat production is a worldwide industry with products such as meat, milk, soap, and fiber being produced. There are approximately 2.6 million meat goats in the United States.
View Article and Find Full Text PDFAnim Nutr
December 2024
State Key Laboratory of Animal Nutrition and Feeding, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China.
This study aimed to develop a compensatory growth model using growing beef cattle by changing dietary protein and to investigate the underlying mechanisms of compensatory protein deposition in muscle tissue. Twelve Charolais bulls were randomly assigned to one of two groups with two periods: 1) a control group (CON) fed a 13% crude protein (CP) diet for 6 weeks; 2) a treatment group (REC) fed a 7% CP diet for 4 weeks (restriction period) and fed a 13% CP diet in the following 2 weeks (re-alimentation period). Growth performance, digestibility, nitrogen balance, targeted metabolomics of amino acids (AA) in plasma, and transcriptional profiling in muscle tissue were analyzed.
View Article and Find Full Text PDFFront Mol Biosci
November 2024
Department of Neonatology, The Sixth Affiliated Hospital, Sun-Yat-Sen University, Guangzhou, China.
Background: Citrullinemia type I disorders (CTLN1) is a genetic metabolic disease caused by argininosuccinate synthetase (ASS1) gene mutation. To date, the human genome mutation database has documented over 100 variants of the ASS1 gene. This study reported a novel deletion-insertion variant of ASS1 gene and employed various prediction tools to determine its pathogenicity.
View Article and Find Full Text PDFDiseases
October 2024
Department of Public Health and Preventive Medicine, Yamaguchi University Graduate School of Medicine, Ube 755-8505, Yamaguchi, Japan.
Investigating the association between plasma-free amino acids (PFAAs) and hyperuricemia (HU) in dyslipidemia (DL) and dyslipidemia with hypertension (DH) is crucial, as it could provide valuable insights into the pathophysiology of these conditions and contribute to the development of targeted prevention and management strategies. Therefore, in this study, we aimed to elucidate the associations between PFAAs and HU in individuals with DL and DH. We quantified PFAAs and uric acid levels among Japanese healthy subjects (n = 1311; HU, n = 57), subjects with DL (n = 1483; HU, n = 219), and subjects with DH (n = 1159; HU, n = 237).
View Article and Find Full Text PDFLett Appl Microbiol
December 2024
Medical Microbiology and Bioprocess Technology Laboratory, Department of Microbiology, Maharshi Dayanand University, Rohtak, Haryana 124001, India.
In the present study, nutraceutical citrulline was produced using immobilization of permeabilized whole cells of Pseudomonas furukawaii, an efficient producer of ADI. Since arginine deiminase (ADI) is intracellularly localized, various additives such as SDS (Sodium dodecyl sulfate), Triton X-100, and EDTA (Ethylenediaminetetraacetic Acid) were used to permeabilize the cell to improve substrate accessibility and ADI activity. The maximum ADI activity was observed with 0.
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