Blar i Bergen Open Research Archive på forfatter "Verri, Tiziano"
-
Amino Acid Carriers of the Solute Carrier Families 7 (SLC7) and 38 (SLC38) Are Involved in Leucine Sensing in the Brain of Atlantic Salmon (Salmo salar)
Comesaña, Sara; Lai, Floriana; Jordal, Ann-Elise Olderbakk; Verri, Tiziano; Espe, Marit; Soengas, José L.; Rønnestad, Ivar (Journal article; Peer reviewed, 2021)Sensing of amino acids in fish brain, especially branched-chain amino acids (BCAA) like leucine, is involved in regulation of feed intake through different mechanisms. However, there is limited information regarding the ... -
Anorectic role of high dietary leucine in farmed Atlantic salmon (Salmo salar L.): Effects on feed intake, growth, amino acid transporters and appetite-control neuropeptides
Lai, Floriana; Comesaña, Sara; Gomes, Ana S.; Flatejord, Daniel; Tolås, Ingvill; Espe, Marit; De Santis, Christian; Hartviksen, Mali B.; Verri, Tiziano; Soengas, Jose L.; Rønnestad, Ivar (Journal article; Peer reviewed, 2023)Leucine has been identified to modulate feed intake and energy homeostasis in fish as in other vertebrates. Under allostatic conditions, energy expenditure may change, and adjustments to the processes that govern the energy ... -
Effects of short term fasting on mRNA expression of ghrelin and the peptide transporters PepT1 and 2 in Atlantic salmon (Salmo salar)
Del Vecchio, Gianmarco; Lai, Floriana; Gomes, Ana S.; Verri, Tiziano; Kalananthan, Tharmini; Barca, Amilcare; Handeland, Sigurd Olav; Rønnestad, Ivar (Journal article; Peer reviewed, 2021)Food intake is a vital process that supplies necessary energy and essential nutrients to the body. Information regarding luminal composition in the gastrointestinal tract (GIT) collected through mechanical and nutrient ... -
Functional characterization of Atlantic salmon (Salmo salar L.) PepT2 transporters
Vacca, Francesca; Gomes, Ana S.; Murashita, Koji; Cinquetti, Raffella; Roseti, Cristina; Barca, Amilcare; Rønnestad, Ivar; Verri, Tiziano; Bossi, Elena (Journal article; Peer reviewed, 2022)The high-affinity/low-capacity system Slc15a2 (PepT2) is responsible for the reuptake of di/tripeptides from the renal proximal tubule, but it also operates in many other tissues and organs. Information regarding PepT2 in ... -
Identification and characterization of the Atlantic salmon peptide transporter 1a
Gomes, Ana S.; Vacca, Francesca; Cinquetti, Raffaella; Murashita, Koji; Barca, Amilcare; Bossi, Elena; Rønnestad, Ivar; Verri, Tiziano (Journal article; Peer reviewed, 2020)Peptide transporter 1 (PepT1) mediates the uptake of dietary di-/tripeptides in vertebrates. However, in teleost fish gut, more than one PepT1-type transporter might operate, because of teleost-specific whole gen(om)e ... -
Leptin receptor-deficient (knockout) zebrafish: Effects on nutrient acquisition
Del Vecchio, Gianmarco; Murashita, Koji; Verri, Tiziano; Gomes, Ana Cristina Da Silva; Rønnestad, Ivar (Journal article; Peer reviewed, 2021)In mammals, knockout of LEPR results in a hyperphagic, morbid obese, and diabetic phenotype, which supports that leptin plays an important role in the control of appetite and energy metabolism, and that its receptor, LEPR, ... -
The peptide transporter 1a of the zebrafish Danio rerio, an emerging model in nutrigenomics and nutrition research: Molecular characterization, functional properties, and expression analysis
Vacca, Francesca; Barca, Amilcare; Gomes, Ana S.; Mazzei, Aurora; Piccinni, Barbara; Cinquetti, Raffaella; Del Vecchio, Gianmarco; Romano, Alessandro; Rønnestad, Ivar; Bossi, Elena; Verri, Tiziano (Peer reviewed; Journal article, 2019-12-19)Background: Peptide transporter 1 (PepT1, alias Slc15a1) mediates the uptake of dietary di/tripeptides in all vertebrates. However, in teleost fish, more than one PepT1-type transporter might function, due to specific whole ... -
Rearing conditions and automated feed distribution systems for zebrafish (Danio rerio)
del Veccio, Gianmarco; Mazzei, Aurora; Schiavone, Roberta; Gomes, Ana S.; Frangelli, Giovanni; Sala, Tomasso; Fantino, Stefania; Brocca, Marco G.A.; Barca, Amilcare; Rønnestad, Ivar; Verri, Tiziano (Journal article; Peer reviewed, 2022)Zebrafish (Danio rerio) is a well-established animal model, used in a number of research areas. In the last decade, it has also emerged as a tool to evaluate the effects of diets and dietary components and to test novel ... -
Sequence analysis and spatiotemporal developmental distribution of the Cat-1-type transporter slc7a1a in zebrafish (Danio rerio)
Ellingsen, Ståle; Narawane, Shailesh; Fjose, Anders; Verri, Tiziano; Rønnestad, Ivar (Journal article; Peer reviewed, 2020)Cationic amino acid transporter 1 (Cat-1 alias Slc7a1) is a Na+-independent carrier system involved in transport and absorption of the cationic amino acids lysine, arginine, histidine, and ornithine and has also been shown ... -
The teleost fish PepT1-type peptide transporters and their relationships with neutral and charged substrates
Vacca, Francesca; Gomes, Ana S.; De Gennaro, Marco; Rønnestad, Ivar; Bossi, Elena; Verri, Tiziano (Journal article; Peer reviewed, 2023)In teleosts, two PepT1-type (Slc15a1) transporters, i.e., PepT1a and PepT1b, are expressed at the intestinal level. They translocate charged di/tripeptides with different efficiency, which depends on the position of the ... -
The zebrafish cationic amino acid transporter/glycoprotein-associated family: sequence and spatiotemporal distribution during development of the transport system b 0,+ (slc3a1/slc7a9)
Ellingsen, Ståle; Narawane, Shailesh; Fjose, Anders; Verri, Tiziano; Rønnestad, Ivar (Journal article; Peer reviewed, 2021)System b0,+ absorbs lysine, arginine, ornithine, and cystine, as well as some (large) neutral amino acids in the mammalian kidney and intestine. It is a heteromeric amino acid transporter made of the heavy subunit SLC3A1/rBAT ...