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.

Identifying genes involved in the secretory physiological response to feeding in Pacific White Shrimp (Litopenaeus vannamei) using transcriptomics
In this study, transcriptome analysis showed that 3172 differentially expressed genes were involved in the post-feeding response, including 289 new genes not annotated in the L. vannamei reference genome. Subsequently, 715 differentially expressed secretory reference genes and 18 new differentially expressed secretory genes were obtained through the identification of signal peptides in secreted proteins. Functional classification revealed that differentially expressed secretory genes were enriched in pathways pertaining to lipid metabolism (20 genes), carbohydrate metabolism (21 genes), glycan biosynthesis and metabolism (...
Source: Comparative Biochemistry and Physiology. Part A, Molecular and integrative physiology. - November 25, 2023 Category: Physiology Authors: Hu Chen Zecheng Li Haoli Yang Jiangyuan Zhang Ardavan Farhadi Erchao Li Source Type: research

Cardiorespiratory reflexes in white sturgeon (Acipenser transmontanus): Lack of cardiac baroreflex response to blood pressure manipulation?
Comp Biochem Physiol A Mol Integr Physiol. 2023 Nov 20;288:111554. doi: 10.1016/j.cbpa.2023.111554. Online ahead of print.ABSTRACTArterial pressure (Pa) regulation is essential to adequately distribute nutrients to metabolizing tissues, remove wastes and avoid lesions associated with hypertension. In vertebrates, short-term Pa regulation is achieved through the baroreflex, which elicits inversely proportional changes in heart rate (fH) and vascular resistance to restore Pa. The cardiac limb of this reflex has been reported in all vertebrate groups studied to date: teleosts, amphibians, snakes, lizards, crocodiles, birds an...
Source: Comparative Biochemistry and Physiology. Part A, Molecular and integrative physiology. - November 21, 2023 Category: Physiology Authors: Victor Hugo da Silva Braga Vinicius Ara újo Armelin Igor Guagnoni Noll Luiz Henrique Florindo William Kenneth Milsom Source Type: research

Cardiorespiratory reflexes in white sturgeon (Acipenser transmontanus): Lack of cardiac baroreflex response to blood pressure manipulation?
Comp Biochem Physiol A Mol Integr Physiol. 2023 Nov 19:111554. doi: 10.1016/j.cbpa.2023.111554. Online ahead of print.ABSTRACTArterial pressure (Pa) regulation is essential to adequately distribute nutrients to metabolizing tissues, remove wastes and avoid lesions associated with hypertension. In vertebrates, short-term Pa regulation is achieved through the baroreflex, which elicits inversely proportional changes in heart rate (fH) and vascular resistance to restore Pa. The cardiac limb of this reflex has been reported in all vertebrate groups studied to date: teleosts, amphibians, snakes, lizards, crocodiles, birds and ma...
Source: Comparative Biochemistry and Physiology. Part A, Molecular and integrative physiology. - November 21, 2023 Category: Physiology Authors: Victor Hugo da Silva Braga Vinicius Ara újo Armelin Igor Guagnoni Noll Luiz Henrique Florindo William Kenneth Milsom Source Type: research

Functional relation of agouti signaling proteins (ASIPs) to pigmentation and color change in the starry flounder, Platichthys stellatus
In conclusion, the ASIP2 gene is related to the morphological pigmentation (countershading and malpigmentation) of the skin in starry flounder, but not with physiological color changes (color camouflage) in the ocular-side skin.PMID:37981006 | DOI:10.1016/j.cbpa.2023.111524 (Source: Comparative Biochemistry and Physiology. Part A, Molecular and integrative physiology.)
Source: Comparative Biochemistry and Physiology. Part A, Molecular and integrative physiology. - November 19, 2023 Category: Physiology Authors: Duk-Young Kang Hyo-Chan Kim Source Type: research

Light-specific wavelengths differentially affect the exploration rate, opercular beat, skin color change, opsin transcripts, and the oxi-redox system of the longsnout seahorse Hippocampus reidi
Comp Biochem Physiol A Mol Integr Physiol. 2023 Nov 14:111551. doi: 10.1016/j.cbpa.2023.111551. Online ahead of print.ABSTRACTLight is a strong stimulus for the sensory and endocrine systems. The opsins constitute a large family of proteins that can respond to specific light wavelengths. Hippocampus reidi is a near-threatened seahorse that has a diverse color pattern and sexual dimorphism. Over the years, H. reidi's unique characteristics, coupled with its high demand and over-exploitation for the aquarium trade, have raised concerns about its conservation, primarily due to their significant impact on wild populations. Her...
Source: Comparative Biochemistry and Physiology. Part A, Molecular and integrative physiology. - November 16, 2023 Category: Physiology Authors: Jos é Araújo Souto-Neto Daniela Dantas David Giovanna Zanetti Cristhian Sua-Cespedes Natalie Villar Freret-Meurer Maria Nath ália Moraes Leonardo Vinicius Monteiro de Assis Ana Maria de Lauro Castrucci Source Type: research

Effect of water calcium, copper, and silver on branchial Na < sup > + < /sup > permeability in a characid and cichlid fish
Comp Biochem Physiol A Mol Integr Physiol. 2023 Nov 11:111553. doi: 10.1016/j.cbpa.2023.111553. Online ahead of print.ABSTRACTWe tested the hypothesis that water Ca2+ is involved in control of branchial Na+ permeability in low pH tolerant convict cichlids and black neon tetras. We measured Na+ efflux in water with different Ca2+ concentrations during exposure to low pH, silver, and copper, at levels which are known to stimulate Na+ efflux. For convict cichlids at pH 7.5 exposure to 0 μmol L-1 Ca2+caused Na+ efflux to rise 2.5 times above controls at 100 μmol L-1 Ca2+. However, raising [Ca2+] to 500 μmol L-1 had no effec...
Source: Comparative Biochemistry and Physiology. Part A, Molecular and integrative physiology. - November 13, 2023 Category: Physiology Authors: A Ambach K Celo M Lim J Marbach Z Tikekar R J Gonzalez Source Type: research

Crustacean cardioactive peptide signaling system in the gastropod mollusk Pacific abalone
In this study, we identified a CCAP precursor and two CCAPR isoforms in the Pacific abalone (Haliotis discus hannai; Hdh). The Hdh-CCAP precursor was found to harbor three CX5C-type and one CX4C-type CCAPs. The Hdh-CCAPRs displayed homology with protostome CCAPRs and deuterostome NPSRs, having characteristics of the rhodopsin-type G protein-coupled receptors. Phylogenetic analysis showed that lophotrochozoan CCAPRs, including Hdh-CCAPRs, form a monophyletic group distinct from arthropod CCAPRs. Reporter assays demonstrated that all examined Hdh-CCAPs and insect CCAP-induced intracellular Ca2+ mobilization and cAMP accumula...
Source: Comparative Biochemistry and Physiology. Part A, Molecular and integrative physiology. - November 13, 2023 Category: Physiology Authors: Sang Hyuck Lee Mi Ae Kim Young Chang Sohn Source Type: research