The results indicate that the proximal part of the ureter MI-503 solubility dmso is prone to a higher shear stress during peristalsis compared with its middle and distal parts. It is also shown that the peristalsis is more

efficient as the maximum height of the contraction wave increases. Finally, it is concluded that improper function of ureteropelvic junction results in the passage of part of urine back flow even in the case of slow start-up of the peristaltic contraction wave. [DOI: 10.1115/1.4003316]“
“An algorithm for the assignment of phosphorylalion sites in peptides is described. The program uses tandem mass spectrometry data in conjunction with the respective peptide sequences to calculate site probabilities for all potential phosphorylation sites. Tandem mass spectra from synthetic phosphopeptides were used for optimization of the scoring parameters employing all commonly used fragmentation techniques. Calculation of probabilities was adapted to the different fragmentation

methods and to the maximum mass deviation of the analysis. The software includes a novel approach to peak extraction, required for matching experimental data to the theoretical values of all isoforms, by defining individual peak depths for the different regions of the tandem mass spectrum. Mixtures of synthetic phosphopeptides were used check details to validate the program by calculation of its false localization rate versus site probability cutoff characteristic. Notably, the empirical obtained precision was higher than indicated by the applied probability cutoff In addition, the performance of the algorithm was compared to existing approaches to site localization such as Ascore. In order to assess the practical applicability of the algorithm to large data sets, phosphopeptides from a biological sample were analyzed, localizing more than 3000 nonredundant phosphorylation sites. Finally, the results obtained for the different fragmentation methods Fludarabine purchase and localization tools were compared and discussed.”
“Hydrogels with four different plant-based microcrystalline cellulose concentrations were prepared using the

self-assembly technique. The interaction parameter between cellulose and water was determined by the classical Flory-Huggins theory, and was found to be around 0.44 with weak concentration dependence. The crosslinking density in these hydrogels was measured by both the Mooney-Rivlin equation and the Flory-Rehner theory. Reasonable consistency was found between the two methods albeit results from the Flory-Rehner theory were slightly higher due to the contribution from the physical crosslinks. The crosslinking density values for all four hydrogels determined from both methods were found to range from 19 to 56 mol/m3. (c) 2012 Wiley Periodicals, Inc. J. Appl. Polym. Sci., 2013″
“Dermatomyositis (DM) is associated with an increased risk of lung cancer.

Serial histological sections were performed at the level of the lumbar spine and pelvis in five human fetuses Autophagy inhibitor between 14 and 30weeks of gestation. Sections were treated with histological staining [hematoxylin-eosin (HE) and Masson's trichrome (TriM)] and with immunohistochemical methods to detect nerve fibers (anti-S100), adrenergic

fibers (anti-TH), cholinergic fibers (anti-VAChT) and nitrergic fibers (anti-nNOS). The sections were then digitalized using a high-resolution scanner and the 3D images were reconstructed using winsurf software. These experiments revealed the coexistence of adrenergic and cholinergic fibers within the SHP and the HNs. One-third of these cholinergic fibers were nitrergic fibers [anti-VACHT (+)/anti-NOS (+)] and potentially pro-erectile, while the others were non-nitrergic [anti-VACHT (+)/anti-NOS (-)]. We found these cholinergic fibers arose from the lumbar nerve roots. This study described the nature of the SHP nerve fibers which gives a better understanding of the urinary and sexual dysfunctions after surgical injuries.”
“To investigate the mechanism of activation of the genes for resistance-nodulation-division

(RND) family members MexE, MexF, and OprN for multidrug resistance (MDR), we mutagenized aefR and mexT, the potential regulators of mexEF/oprN transcription in Pseudomonas syringae pv. tabaci 6605 (Pta 6605). BV-6 research buy AefR is a member of the TetR transcription factors, and is known to be required for production of the quorum-sensing molecules, acyl homoserine lactones (AHL), in P. syringae. Furthermore, we found that AHL-synthesis-defective Wnt inhibitor mutant strains in Pta 6605 showed enhanced expression of mexEF/oprN, and were highly tolerant to antimicrobial compounds such as chloramphenicol. MexT is a LysR-type transcription factor and is known to positively regulate transcription of mexEF/oprN in Pseudomonas aeruginosa. The a dagger aefR mutant reduced the amount of growth in in vitro culture, caused the loss of

AHL production, reduced the swarming motility, virulence and expression of psyI (AHL synthase) and psyR (AHL transcriptional regulator), and enhanced mexEF/oprN expression and tolerance to chloramphenicol, whereas the a dagger mexT mutant retained the ability to produce AHL and did not show remarkable changes in in vitro growth, tolerance to antimicrobial compounds or virulence. Furthermore, unlike P. aeruginosa, the expression of mexEF/oprN is independent of MexT. These results indicate that (1) AefR is a regulator for the quorum-sensing system and MDR, and is required for swarming motility and virulence toward the host tobacco plant, and (2) MexT is not involved in the expression of mexEF/oprN in this bacterium.”
“A major mechanism for Na+ transport across epithelia occurs through epithelial Na+ channels (ENaC). ENaC is a multimeric channel consisting of three subunits (alpha, beta, and gamma). The alpha-subunit is critical for ENaC function.

We present a novel technique (1) to detect early tumor cell dissemination and (2) to quantify the true tumor burden.\n\nMETHODS. Prospectively 232 LN of 20 consecutive patients with prostate cancer after lymph node dissection were longitudinally bisected, one half was subjected to single cell immunocytochemistry for pancytokeratine (CK), the other half underwent routine histopathological work-up and step section analysis. In immunocytochemistry,

tumor cell density (TCD) was quantified by calculating the number of CK-positive cells/million leucocytes and compared to routine histopathology and step section analysis.\n\nRESULTS. Eight of 20 patients were positive in histopathology and step sectioning, but 14 of 20 patients were positive in

single cell analysis. Twenty-five of 232 LN were positive in routine histopathology, whereas 52 of 232 LN GSK2399872A in vitro were positive in single cell analysis. Median TCD in histopathologically positive LN was 3060.0 x 10(-6) and 9.9 x 10(-6) in histopathologically negative LN (P < 0.0001). Mean TCD of histopathologically negative LN of pN1 patients was significantly higher than the mean TCD of pN0 patients (P < 0.003). Mean TCD per patient correlated with serum-PSA (r(2) = 0.48, P < 0.006).\n\nCONCLUSIONS. Single cell analysis has an increased detection rate compared to routine histopathology and even to serial step section analysis. The method can detect early tumor dissemination and enables quantification of the tumor burden. The subgroup of histopathologically negative LN with CK-positive cells represents PCI-34051 tumor cell dissemination not depicted histologically. Prostate 70: 1110-1118, 2010. selleck compound (C) 2010 Wiley-Liss, Inc.”
“Aim. The aim of this paper was to investigate the release of oxygen free radicals in patients with peripheral occlusive arterial disease and the effects of immersion of the legs and feet in carbon dioxide (CO(2))-enriched water.\n\nMethods.

Twenty-five patients with peripheral occlusive arterial disease (Fontaine stage II) and 15 healthy controls were treated by immersing the lower legs in either CO(2)-enriched or normal spa water. Blood samples were collected in heparinized tubes and total antioxidant status (TAS) and reactive oxygen metabolites (ROMs) were measured after five treatments a week for two weeks.\n\nResults. d-ROM plasma levels decreased in patients with peripheral occlusive disease after immersion in CO(2)-enriched water (P < 0.001), and in healthy controls (P < 0.01), in line with a significant increase in TAS (P < 0.001).\n\nConclusion. CO(2)-enriched water immersion had a positive effect, reducing free radical plasma levels and raising the levels of antioxidants, suggesting an improvement in the microcirculation. [Int Angiol 2011;30:12-17]“
“Cancer metastases to the oral cavity are reported infrequently. Renal cell carcinoma has a high metastatic potential, with approximately one third of patients presenting with metastatic disease.

\n\nResultsAll Apoptosis inhibitor participants recalled some manifestation of conflict. There were 12 negative conflict-producing themes and 10 protective conflict-mitigating themes. When comparing these themes to a previously developed model of the domains of trust, each theme mapped to domains of the model.\n\nConclusionsConflict affects the ED consultation process. Areas that lead to conflict are identified that map to previous models of trust and conflict. This work extends the current understanding about intradisciplinary

conflict in the clinical realm. These new findings may improve the understanding of the nature of conflicts that occur and form the foundation for interventions that may decrease conflict during ED consultations.\n\nResumen\n\nObjetivosDeterminar las causas y los factores atenuantes para los conflictos entre los urgenciologos y otros colegas durante una interconsulta.\n\nMetodologiaSe entrevistaron 61 medicos (31 residentes y 30 adjuntos de Medicina

de Urgencias y Emergencias, Medicina Interna y Cirugia General) de marzo a septiembre de 2010, y se les pregunto sobre como deberian los estudiantes ser formados sobre las interconsultas del servicio de urgencias (SU). Durante estas entrevistas, se les pregunto si existe y como se manifiesta el conflicto durante el proceso de interconsulta en el SU. Dos investigadores revisaron las transcripciones de forma independiente y generaron temas relacionados con el conflicto hasta que se alcanzo la saturacion. Los desacuerdos se resolvieron mediante un consenso.

La confianza del analisis se aseguro mediante BIBF 1120 manufacturer la generacion de una auditoria, que se audito posteriormente por un investigador no incluido en el analisis inicial. Este analisis se comparo con modelos de confianza y conflicto propuestos previamente en la literatura de las areas de negocios y de sociologia.\n\nResultadosTodos los participantes recordaron alguna manifestacion de conflicto. Hubo 12 temas negativos que producian conflictos y 10 temas que atenuaban conflictos. Cuando se compararon estos temas con un modelo previamente desarrollado de dominios de confianza, se mapeo cada tema para los dominios del modelo.\n\nConclusionesEl conflicto impacta en el proceso de interconsulta del SU. Las areas que conducen al conflicto se identifican al mapear Blebbistatin price los modelos previos de confianza y conflictos. Este trabajo amplia el entendimiento actual sobre los conflictos intradisciplinarios en el area clinica. Estos nuevos hallazgos pueden mejorar el entendimiento de la naturaleza de los conflictos que ocurren y la forma de crear intervenciones que pueden disminuir los conflictos durante las interconsultas en el SU.”
“Background: The papillary and trabecular muscles constitute a significant percentage of left ventricular mass and volume. The influence of the papillary and trabecular muscles on left ventricular parameters has not been described with multidetector CT angiography.

A bioinformatic analysis of the identified non-redundant EST and protein collection indicated that different molecular processes were affected, such as stress response, phytohormone signalling, transcriptional control and primary metabolism,

and that a considerable proportion of the ESTs could not be classified. The altered expression of 20 transcripts was also analysed by real-time PCR, and the most striking differences were further confirmed in the fruit of a different olive variety. We also cloned the full-length coding sequences of two genes, Oe-chitinase I and Oe-PR27, and showed that these are wound-inducible genes and activated by B. oleae punctures.\n\nConclusions: This study represents the first report that reveals VX-689 in vitro the molecular players and signalling pathways involved in the interaction between the olive fruit and its most damaging biotic stressor. Drupe response is complex, involving genes and proteins involved in photosynthesis as well as in the production of ROS, the activation of different stress response pathways and the

production of compounds involved in direct defence against phytophagous larvae. Among the latter, trypsin inhibitors should play a major role in drupe MCC950 purchase resistance reaction.”
“PURPOSE: To assess the safety and clinical efficacy of fluoroscopically guided percutaneous jejunostomy with use of a 21-gauge needle and a single anchor technique in 51 patients.\n\nMATERIALS AND METHODS: From November 2006 to January 2009, 51 consecutive patients (42 men and nine Selleckchem PFTα women; mean age, 63.7 years) underwent percutaneous jejunostomy under fluoroscopic guidance. A 7.5-F multifunctional coil catheter was used to insufflate the jejunum. The distended jejunum was punctured with

a 21-gauge needle, with the inserted coil catheter as the target. A single anchor was used. The technical success, number of punctures, procedure time, complications, and follow-up data including 30-day mortality rate were evaluated.\n\nRESULTS: The technical success rate was 100%, and the single anchor technique was used in all but one patient, in whom three anchors were used. The mean number of punctures was 1.7 (range, 1-4), and the mean procedure time was 14.8 minutes (range, 7-29 min). Peritonitis was a major complication in two patients (3.9%), who were treated by changing the catheters from 141 F to 16 F and performing percutaneous drainage procedures. Three minor complications were encountered: superficial cellulitis (n = 2) and severe puncture site pain (n = 1). The 30-day mortality rate was 5.9% (three of 51), although none of the deaths could be attributed to the jejunostomy procedures.\n\nCONCLUSIONS: Fluoroscopically guided percutaneous jejunostomy with use of a 21-gauge needle and the single anchor technique seems to be safe and effective, with high technical success and low complication rates.

“
“As progression-free survival (PFS) click here has become increasingly used as the primary endpoint

in oncology phase III trials, the U.S. Food and Drug Administration (FDA) has generally required a complete-case blinded independent central review (BICR) of PFS to assess and reduce potential bias in the investigator or local site evaluation. However, recent publications and FDA analyses have shown a high correlation between local site evaluation and BICR assessments of the PFS treatment effect, which questions whether complete-case BICR is necessary. One potential alternative is to use BICR as an audit tool to detect evaluation bias in the local site evaluation. In this article, the performance characteristics of two audit methods proposed in the literature are evaluated on 26 prospective, randomized phase III registration trials

in nonhematologic malignancies. The results support SBE-β-CD that a BICR audit to assess potential bias in the local site evaluation is a feasible approach. However, implementation and logistical challenges need further consideration and discussion. (C) 2013 AACR.”
“Objective: Several genome-wide association studies and replication analyses have identified common variation at the insulin-like binding protein 2 (IGF2BP2) gene to be associated with type 2 diabetes (T2DM). The aim of this study was to replicate in a Lebanese Arab population identified associations of IGF2BP2 variants rs4402960 and rs1470579 with T2DM.\n\nMethods: This case-control study involved 544 T2DM patients and 606 control subjects. Genotyping was done by the allelic exclusion method.\n\nResults: T allele of rs440960 (P = 6.5 x 10(-6)) and C allele of rs1470579 (P = 5.3 x 10(-4)) were significantly associated with T2DM; both SNPs were in strong LD (D’ = 0.83, r(2) = 0.58). While both IGF2BP2 SNPs were significantly associated with T2DM under additive and recessive models, only rs4402960 remained significantly associated with T2DM under the dominant model. Taking

the common rs4402960/rs1470579 GA haplotype as reference, SNX-5422 multivariate analysis confirmed the positive association of TC (P = 0.009; OR, 1.43; 95% CI, 1.09-1.87), and TA (P < 0.001; OR = 5.49; 95% CI = 2.09-14.39) haplotypes with increased T2DM risk. These differences remained significant after applying the Bonferroni correction for multiple testing.\n\nConclusion: We validate that IGF2BP2 susceptibility variants rs4402960 and rs1470579 associate with T2DM in Lebanese Arabs. (C) 2012 Elsevier Ireland Ltd. All rights reserved.”
“An ensemble-based approach is applied to better estimate source impacts on fine particulate matter (PM2.5) and quantify uncertainties in various source apportionment (SA) methods. The approach combines source impacts from applications of four individual SA methods: three receptor-based models and one chemical transport model (CTM).

21, P = .001). Increased BWT was correlated with increased PSA level (r(s) = 0.22, P = .0003), increased prostate volume (r(s) = 0.17, P = .01), and decreased maximum flow rate (r(s) = -0.14, P = .03). Increased EBW was correlated with increased maximum flow rate (r(s) = 0.14, P = .03) and decreased AUASI score (r(s) = -0.13, P = .04).\n\nCONCLUSIONS Decreased SA and EBW were moderately associated with decreased maximum flow rate and increased AUASI scores, suggesting that such measures

may provide insight into detrusor dysfunction. UROLOGY 74: 908-914, 2009. (c) 2009 Elsevier Inc.”
“Memorizing the basic number combinations, such as 9 + 7 = 16 and 16 – 9 = Brigatinib 7, is a punishing and insurmountable task for children with difficulties learning mathematics. Two perspectives on such learning lead to different conclusions about the primary source of this key learning difficulty.

According to the conventional wisdom (the Passive Storage View), memorizing a basic fact is a simple form of learning-merely forming and strengthening an association between an expression and its answer. The two primary reasons this simple form of learning does not occur are inadequate practice or, in cases where adequate practice has been Tyrosine Kinase Inhibitor Library in vivo provided, a defect in the learner. According to the number sense perspective (Active Construction View), memorizing the basic combinations entails constructing a well-structured or -connected body of knowledge that involves CX-6258 order patterns, relations, algebraic rules, and automatic reasoning processes, as well as facts. In effect, fluency with the basic number combinations begins with and grows out of number sense. Aspects of number sense critical to such fluency begin to develop in the preschool years. According to the Active Construction View, the primary cause of problems with the basic combinations, especially among children at risk

for or already experiencing learning difficulties, is the lack of opportunity to develop number sense during the preschool and early school years. (C) 2009 Wiley-Liss, Inc. Dev Disabil Res Rev 2009; 15:69-79.”
“Near-isogenic line (NIL) libraries can be used to detect beneficial trait variation in germplasm that is unadapted or has poor agronomic performance. The objectives of our study were to compare the t test, Dunnett test, and linear model test with regard to the power and false positive rate of quantitative trait loci (QTL) detection in NIL libraries of different design. We employed computer simulations with maize genome models to investigate nonoverlapping NIL libraries, overlapping NIL libraries, and stepped aligned inbred recombinant strains (STAIRS) libraries for traits with oligogenic inheritance. Quantitative trait loci detection power of the linear model and Dunnett tests were similar for nonoverlapping and STAIRS libraries; for overlapping NIL libraries the Dunnett test was slightly superior.

“
“Although adjuvant chemotherapy has significantly increased overall survival in resected Stage III colorectal cancer, disease recurrence is still high (30-40%). 20-25% of Stage II patients also develop recurrent disease. Thus, high-risk patients may benefit from chemotherapy. As patient response

to standard chemotherapy varies, the study of molecular differences in the expression of pharmacologically relevant genes may help clinicians to understand variability and tailor therapy. The expression of 5-fluorouracil (5-FU) pathway genes in tumors from 53 Stages II-III colorectal cancer patients who underwent 5FU adjuvant chemotherapy was investigated by reverse transcription quantitative real-time polymerase chain reaction. Patients were dichotomized into high-and low-mRNA expression level groups using median values of gene mRNA levels. Then, a threshold analysis to S63845 ic50 identify a cut-off distinguishing recurrent-or nonrecurrent-disease was used. A high degree of interpatient variation in relative tumor expression of study genes was observed. Multiple gene correlations were found, which suggest possible coregulation mechanisms. No statistically significant relationship between experimental data and baseline clinical/ pathological characteristics or clinical outcome was observed using gene expression median values. Threshold analysis indicated significant

inverse relationships between deoxyuridine triphosphatase Selleck AC220 (DUT), ferrodoxin reductase (FDXR) or tumor protein p53 (TP53) and disease-free survival

(DFS) in the entire case series and between DUT or PND-1186 NM23-H1 and DFS in Stage III patients: higher gene expression was associated with shorter DFS. This study provides data on relationships between expression of 5-FU pathway genes and clinical outcome of colorectal cancer patients undergoing 5-FU adjuvant chemotherapy and underscores the predictive role of specific genes. Validation in an independent case series is warranted. Cancer Therapy”
“Canine distemper virus (CDV) is a morbillivirus that is the etiological agent of one of the most important viral diseases affecting canids and an expanding range of other carnivores. Using real-time RT-PCR, CDV RNA was detected in organs of an Iberian lynx (Lynx pardinus) found dead in the Dofiana National Park, Southwestern Andalusia, Spain. This finding may be of great importance for the conservation of the species; at present the Iberian lynx is the most critically endangered wild felid. The aim of the present study was to elucidate the significance of CDV for the Iberian lynx population. High viral loads were evident in the dead lynx, suggesting an etiological involvement of CDV in its death. When carnivores from the same region were analyzed by CDV RT-PCR, a stone marten (Martes foina) was positive. Phylogenetic analyses demonstrated high identity of the two detected CDVs and a close relationship to the European dog lineage of CDV. Antibodies to CDV were detected in 14.

Data integration of the variously stained cells increased diagnostic accuracy. The implementation of MMCA also enabled fully automatic, adaptive image preprocessing, including registration of multimodal images and segmentation of cell nuclei. METHODS: In a preliminary clinical trial, 47 slides from brush biopsies of suspicious oral lesions were analyzed. The final histologic diagnoses

BTSA1 research buy included 20 squamous cell carcinomas, 7 hyperkeratotic leukoplakias, and 20 lichen planus mucosae. RESULTS: The stepwise application of 2 additional approaches (morphology, DNA content, argyrophilic nucleolar organizer region counts) increased the specificity of conventional cytologic diagnosis from 92.6% Selonsertib manufacturer to 100%. This feasibility study provided a proof of concept, demonstrating efficiency, robustness, and diagnostic accuracy on slide-based cytologic specimens. CONCLUSIONS: The authors concluded that MMCA may become a sensitive and highly specific, objective, and reproducible adjuvant diagnostic tool for the identification of neoplastic changes in oral smears that contain only a few abnormal cells. Cancer (Cancer Cytopathol) 2009;117:228-35. (C) 2009 American Cancer Society.”
“Combretastatin A-4 (CA-4) is one of the most effective agents used in chemotherapy. Nevertheless, the contribution of p53 and Bim proteins

in the CA-4-induced apoptosis in non-small lung cancer cells (NSCLC) remains unresolved, specifically on involving of p53 in the mitochondrial pathway activation by a transcription-independent mechanism. In this context, the p53-null H1299 and wt-p53 H460 NSCLC cells, in the

absence and presence of pifithrin-mu (PFT mu), an inhibitor of p53 mitochondrial-translocation, were treated with CA-4 and different cellular SHP099 purchase endpoints were analysed. In contrast to previous observations in H460 cells, CA-4 failed in the activation of an apoptotic response in H1299 cells, thus indicating an involvement of p53 in the cell death induced by the drug. We found that CA-4 led to p53 cellular re-localisation in H460 cells; in particular, p53 was released from the microtubular network and accumulated at mitochondria where it interacts with Bim protein and other proteins of the Bcl-2 (B-cell leukaemia-2) family, leading to cytochrome c release, alteration in the mitochondrial membrane polarisation, cell cycle arrest at the G2/M-phase, and cell death. Interestingly, the cytosolic and the mitochondrial accumulation of protein Bim was strictly dependent on p53 status. The extent of cell death was not reduced in H460 after combined treatment of PFT mu with CA-4. Overall, the data support a model of CA-4-induced apoptosis in NSCLC, for which the expression of p53 protein is essential, but its mitochondrial function, linked to p53-transcription independent apoptosis pathway, is negligible.

It is therefore critical to understand the biophysical properties and subcellular localization (density and distribution)

of these channels and how their properties are modulated. Here we will review recent findings Alvocidib showing that two different classes of K+ channels (A-type and small conductance, Ca2+-activated K+ channels), beyond their traditional role in regulating action potential firing, contribute to the regulation of synaptic strength in the hippocampus. In addition, we discuss how modulation of these channels’ properties and expression might contribute to synaptic plasticity.”
“Objectives: Bone tissue regeneration requires a source of viable, proliferative cells with osteogenic differentiation capacity. Periodontal surgeries represent an opportunity to procure small amounts of autologous tissues for primary cell isolation. Our objective was to AP24534 assess the potential of human alveolar bone as a source of autologous osteogenic cells for tissue engineering and biomaterials and drug testing studies.\n\nMaterials and Methods:

Alveolar bone tissue was obtained from 37 patients undergoing routine periodontal surgery. Tissue harvesting and cell isolation procedures were optimized to isolate viable cells. Primary cells were subcultured and characterized with respect to their growth characteristics, gene expression of osteogenic markers, alkaline phosphatase activity and matrix mineralization, under osteogenic stimulation.\n\nResults: Alveolar bone cells were successfully Dihydrotestosterone datasheet isolated from 28 of the 30 samples harvested with bone forceps, and from 2 of the 5 samples obtained by bone drilling. The yield of cells in primary cultures was variable between the individual samples, but was not related to the site of tissue harvesting and the patient age. In 80% of samples (n = 5), the primary cells proliferated steadily for eight subsequent passages, reaching cumulative numbers over 10(10) cells. Analyses confirmed stable gene expression of alkaline phosphatase, osteopontin and osteocalcin in early and late

cell passages. In osteogenic medium, the cells from late passages increased alkaline phosphatase activity and accumulated mineralized matrix, indicating a mature osteoblastic phenotype.\n\nConclusions: Primary alveolar bone cells exhibited robust proliferation and retained osteogenic phenotype during in vitro expansion, suggesting that they can be used as an autologous cell source for bone regenerative therapies and various in vitro studies.”
“This study addresses a fundamental question in fish welfare: are the anaesthetics used for fish aversive? Despite years of routine general use of many agents, within both scientific research and aquaculture, there is a paucity of information regarding their tolerance and associated behavioural responses by fish.