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Function: require_once
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Function: _error_handler
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Filename: controllers/Detail.php
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Filename: controllers/Detail.php
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File: /var/www/html/application/controllers/Detail.php
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Function: _error_handler
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Lipid nutrition of marine fish larvae has focused on supplying essential fatty acids (EFA) at high levels to meet requirements for survival, growth and development. However, some deleterious effects have been reported suggesting that excessive supply of EFA might result in insufficient supply of energy substrates, particularly in species with lower EFA requirements such as Senegalese sole (Solea senegalensis). This study addressed how the balance between EFA and non-EFA (better energy sources) affects larval performance, body composition and metabolism and retention of DHA, by formulating enrichment emulsions containing two different vegetable oil sources (olive oil or soybean oil) and three DHA levels. DHA positively affected growth and survival, independent of oil source, confirming that for sole post-larvae it is advantageous to base enrichments on vegetable oils supplying higher levels of energy, and supplement these with a DHA-rich oil. In addition, body DHA levels were generally comparable considering the large differences in their dietary supply, suggesting that the previously reported ∆4 fatty acyl desaturase (fad) operates in vivo and that DHA was synthesized at physiologically significant rates through a mechanism involving transcriptional up-regulation of ∆4fad, which was significantly up-regulated in the low DHA treatments. Furthermore, data suggested that DHA biosynthesis may be regulated by an interaction between dietary n-3 and n-6 PUFA, as well as by levels of LC-PUFA, and this may, under certain nutritional conditions, lead to DHA production from C18 precursors. The molecular basis of putative fatty acyl ∆5 and ∆6 desaturation activities remains to be fully determined as thorough searches have found only a single (∆4) Fads2-type transcript. Therefore, further studies are required but this might represent a unique activity described within vertebrate fads.
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http://dx.doi.org/10.1016/j.cbpb.2013.10.001 | DOI Listing |
NPJ Sci Food
December 2024
College of Veterinary Medicine, Yangzhou University, Yangzhou, Jiangsu, China.
Sodium dehydroacetate (DHA-Na), a widely used preservative, can induce sex-differentiated coagulation disorders primarily resulting from its metabolism. However, the underlying mechanisms remain poorly understood. Here, we identified several Cytochrome P450 (CYP450) sub-enzymes involved in sex differences related to DHA-Na metabolism, along with two related DHA-Na metabolites.
View Article and Find Full Text PDFWei Sheng Yan Jiu
November 2024
Shenzhen Center for Chronic Disease Control, Shenzhen 518020, China.
Objective: To explore the differences in fat and fatty acids content between freshwater and saltwater fish.
Methods: The fat and fatty acids content in 83 fish meat samples from four regions(Hainan, Jiangsu, Fujian, and Guangxi) were detected by national standard method. Mann-Whitney U tests and t-tests were used to compare the differences in fat and major fatty acid content between freshwater and saltwater fish.
Beilstein J Org Chem
December 2024
Department of Chemical and Geological Sciences, University of Cagliari, S.S. 554, bivio per Sestu, 09042 Monserrato (CA), Italy.
The rising popularity of bioconjugate therapeutics has led to growing interest in late-stage functionalization (LSF) of peptide scaffolds. α,β-Unsaturated amino acids like dehydroalanine (Dha) derivatives have emerged as particularly useful structures, as the electron-deficient olefin moiety can engage in late-stage functionalization reactions, like a Giese-type reaction. Cheap and widely available building blocks like organohalides can be converted into alkyl radicals by means of photoinduced silane-mediated halogen-atom transfer (XAT) to offer a mild and straightforward methodology of alkylation.
View Article and Find Full Text PDFDrug Test Anal
December 2024
Catalonian Antidoping Laboratory, Doping Control Research Group, Hospital del Mar Research Institute, Barcelona, Spain.
The detection of endogenous anabolic androgenic steroids misuse in Asian population using the Steroidal Module of the Athlete Biological Passport (ABP) is a challenge due to the high prevalence of UGT2B17 gene deletion polymorphism with low levels of testosterone (T) glucuronide. In this study, the capabilities of different approaches based on urine analysis for the detection of oral T undecanoate administration were evaluated in 13 Asian volunteers, including 11 subjects with del/del genotype and 2 subjects with del/ins genotype. In the first part of the work, the effect on the urinary steroid profile (SP) and on the isotope ratio mass spectrometry markers was evaluated.
View Article and Find Full Text PDFBiochem Pharmacol
December 2024
Department of Obstetrics and Gynecology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, China; National Clinical Research Center for Obstetrics and Gynecology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China. Electronic address:
Offspring of women with gestational diabetes mellitus (GDM) face an increased risk of long-term neurodevelopmental abnormalities. This study explores the altered expression of key placental fatty acid transport proteins-FATP2, FATP4, FATP6, FABP4, and FAT/CD36-in GDM patients, and the potential of docosahexaenoic acid (DHA) to mitigate neurodevelopmental risks in offspring by enhancing their expression through activation of peroxisome proliferator-activated receptor γ (PPAR-γ). Our findings demonstrate that placental FATP4 expression is reduced in GDM patients.
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