Comparative Biochemistry and Physiology. Part A, Molecular and integrative physiology. This is an RSS file. You can use it to subscribe to this data in your favourite RSS reader or to display this data on your own website or blog.

Possible role of neuropeptide Y on zymosan- and lipopolysaccharide-induced change in gastrointestinal feed passage via the medulla oblongata in chicks
Comp Biochem Physiol A Mol Integr Physiol. 2023 Dec 24:111565. doi: 10.1016/j.cbpa.2023.111565. Online ahead of print.ABSTRACTZymosan is a fungi-derived pathogen-associated molecular pattern. It activates the immune system and induces the reduction of feed passage rate in the gastrointestinal tract of vertebrates including birds. However, the mechanism mediating the zymosan-induced inhibition of feed passage in the gastrointestinal tract remains unknown. Since the medulla oblongata regulates the digestive function, it is plausible that the medulla oblongata is involved in the zymosan-induced inhibition of feed passage. The...
Source: Comparative Biochemistry and Physiology. Part A, Molecular and integrative physiology. - December 26, 2023 Category: Physiology Authors: Maki Takahashi Sakirul Khan Mark A Cline Tetsuya Tachibana Source Type: research

Transesophageal echocardiography of cardiac function in Nile crocodiles - A novel tool for assessing complex hemodynamic patterns
CONCLUSION: TEE can be used to image the unique features of the crocodile heart and allow for in-vivo imaging of the complex shunting hemodynamics, including timing of cardiac shunts.PMID:38135145 | DOI:10.1016/j.cbpa.2023.111564 (Source: Comparative Biochemistry and Physiology. Part A, Molecular and integrative physiology.)
Source: Comparative Biochemistry and Physiology. Part A, Molecular and integrative physiology. - December 22, 2023 Category: Physiology Authors: Christian F B Poulsen Kim Munk Tobias Wang Mads Damkjaer Source Type: research

Activation and characterization of G protein-coupled receptors for CHHs in the mud crab, Scylla paramamosain
This study employed a eukaryotic expression system, HEK293T cell transient transfection, and ligand-receptor interaction tests to identify the GPCRs of CHHs in the mud crab Scylla paramamosain. We found that four GPCRs (Sp-GPCR-A34-A37) were activated by their corresponding CHHs (Sp-CHH1-v1, Sp-MIH, Sp-VIH) in a dose-dependent manner. Of these, Sp-GPCR-A34 was exclusively activated by Sp-VIH; Sp-GPCR-A35 was activated by Sp-CHH1-v1 and Sp-VIH, respectively; Sp-GPCR-A36 was activated by Sp-CHH1-v1 and Sp-MIH; Sp-GPCR-A37 was exclusively activated by Sp-MIH. The half-maximal effective concentration (EC50) values for all CHHs...
Source: Comparative Biochemistry and Physiology. Part A, Molecular and integrative physiology. - December 20, 2023 Category: Physiology Authors: Nan Mo Shucheng Shao Yan Zhuang Yanan Yang Zhaoxia Cui Chenchang Bao Source Type: research

Temperature and hypoxia trigger developmental phenotypic plasticity of cardiorespiratory physiology and growth in the parthenogenetic marbled crayfish, Procambarus virginalis Lyko, 2017
Comp Biochem Physiol A Mol Integr Physiol. 2023 Dec 17:111562. doi: 10.1016/j.cbpa.2023.111562. Online ahead of print.ABSTRACTAttempting to differentiate phenotypic variation caused by environmentally-induced alterations in gene expression from that caused by actual allelic differences can be experimentally difficult. Environmental variables must be carefully controlled and then interindividual genetic differences ruled out as sources of phenotypic variation. We investigated phenotypic variability of cardiorespiratory physiology as well as biometric traits in the parthenogenetically-reproducing marbled crayfish Procambarus...
Source: Comparative Biochemistry and Physiology. Part A, Molecular and integrative physiology. - December 19, 2023 Category: Physiology Authors: Torben G öpel Warren W Burggren Source Type: research

Dietary fatty acids and flight-training influence the expression of the eicosanoid hormone prostacyclin in songbirds
Comp Biochem Physiol A Mol Integr Physiol. 2023 Dec 6;288:111561. doi: 10.1016/j.cbpa.2023.111561. Online ahead of print.ABSTRACTDiet shifts can alter tissue fatty acid composition in birds, which is subsequently related to metabolic patterns. Eicosanoids, short-lived fatty acid-derived hormones, have been proposed to mediate these relationships but neither baseline concentrations nor the responses to diet and exercise have been measured in songbirds. We quantified a stable derivative of the vasodilatory eicosanoid prostacyclin in the plasma of male European Starlings (Sturnus vulgaris, N = 25) fed semisynthetic diets with...
Source: Comparative Biochemistry and Physiology. Part A, Molecular and integrative physiology. - December 6, 2023 Category: Physiology Authors: Wales A Carter Kristen J DeMoranville Lisa Trost Amadeusz Bry ła Maciej Dzia ło Edyta T Sadowska Ulf Bauchinger Barbara Pierce Scott R McWilliams Source Type: research

Understanding olfactory and behavioural responses to dietary cues in age-1 lake sturgeon Acipenser fulvescens
In this study we used electrophysiological and behavioural techniques to evaluate olfactory detection and behaviour in juvenile lake sturgeon Acipenser fulvescens in response to hatchery- and natural dietary cues. We hypothesized that electro-olfactogram (EOG) and behavioural responses would be dependent on diet type. We predicted that inhibition of the phospholipase C/inositol 1,4,5-triphosphate (PLC/IP3) secondary transduction pathway would reduce EOG responses to dietary cues and, inhibition of the adenylyl cyclase/adenosine 3,5-cyclic monophosphate (cAMP) pathway, would have no effect. Furthermore, we predicted a stron...
Source: Comparative Biochemistry and Physiology. Part A, Molecular and integrative physiology. - December 6, 2023 Category: Physiology Authors: Tyler Edwards Ian A Bouyoucos Caleb T Hasler Mark Fry W Gary Anderson Source Type: research

Understanding olfactory and behavioural responses to dietary cues in age-1 lake sturgeon Acipenser fulvescens
In this study we used electrophysiological and behavioural techniques to evaluate olfactory detection and behaviour in juvenile lake sturgeon Acipenser fulvescens in response to hatchery- and natural dietary cues. We hypothesized that electro-olfactogram (EOG) and behavioural responses would be dependent on diet type. We predicted that inhibition of the phospholipase C/inositol 1,4,5-triphosphate (PLC/IP3) secondary transduction pathway would reduce EOG responses to dietary cues and, inhibition of the adenylyl cyclase/adenosine 3,5-cyclic monophosphate (cAMP) pathway, would have no effect. Furthermore, we predicted a stron...
Source: Comparative Biochemistry and Physiology. Part A, Molecular and integrative physiology. - December 6, 2023 Category: Physiology Authors: Tyler Edwards Ian Bouyoucos Caleb Hasler Mark Fry Gary Anderson Source Type: research