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Effect of dietary intervention with Capsicum annuum extract on growth performance, physiological status, innate immune response, and related gene expression in Nile tilapia
Comp Biochem Physiol B Biochem Mol Biol. 2023 Nov 6:110914. doi: 10.1016/j.cbpb.2023.110914. Online ahead of print.ABSTRACTThe red pepper (Capsicum annuum) has gained great attention recently because of its biological and pharmacological characteristics. The present approach aimed to evaluate the effects of C. annuum alcoholic extract (CAE) supplementation on Nile tilapia (Oreochromis niloticus) growth performance, physiological status, some metabolic, immune, and regulatory genes expression, and resistance against Streptococcus agalactiae infection. Fish (22.26 ± 0.19 g) were assigned to four treatments (five replicates,...
Source: Comparative biochemistry and physiology. Part B, Biochemistry and molecular biology. - November 8, 2023 Category: Biochemistry Authors: Rowida E Ibrahim Nasreddin R Rhouma Mohamed A Elbealy Abdelwahab A Abdelwarith Elsayed M Younis Samah S Khalil Tarek Khamis Abdallah Tageldein Mansour Simon J Davies Abdelhakeem El-Murr Afaf N Abdel Rahman Source Type: research

p38 MAPK involvement in the thermal stress response occurs via HSP27 and caspase3 in the large yellow croaker (Larimichthys crocea)
Comp Biochem Physiol B Biochem Mol Biol. 2023 Nov 2;270:110912. doi: 10.1016/j.cbpb.2023.110912. Online ahead of print.ABSTRACTThe p38 mitogen-activated protein kinase (p38 MAPK) is a multifunctional molecule that is involved in cellular response to various stressful stimuli. In the present study, the full-length cDNA sequence of p38 MAPK (Lcp38 MAPK) was identified from the large yellow croaker Larimichthys crocea, which encoded a polypeptide of 361 amino acid residues. The predicted Lcp38 MAPK protein contained a highly conserved Thr-Gly-Tyr (TGY) motif, a glutamate and aspartate (ED) site, a substrate binding site (Ala-...
Source: Comparative biochemistry and physiology. Part B, Biochemistry and molecular biology. - November 2, 2023 Category: Biochemistry Authors: Qiao-Jing Jia Cui-Luan Yao Source Type: research

p38 MAPK involvement in the thermal stress response occurs via HSP27 and caspase3 in the large yellow croaker (Larimichthys crocea)
Comp Biochem Physiol B Biochem Mol Biol. 2023 Oct 31:110912. doi: 10.1016/j.cbpb.2023.110912. Online ahead of print.ABSTRACTThe p38 mitogen-activated protein kinase (p38 MAPK) is a multifunctional molecule that is involved in cellular response to various stressful stimuli. In the present study, the full-length cDNA sequence of p38 MAPK (Lcp38 MAPK) was identified from the large yellow croaker Larimichthys crocea, which encoded a polypeptide of 361 amino acid residues. The predicted Lcp38 MAPK protein contained a highly conserved Thr-Gly-Tyr (TGY) motif, a glutamate and aspartate (ED) site, a substrate binding site (Ala-Thr...
Source: Comparative biochemistry and physiology. Part B, Biochemistry and molecular biology. - November 2, 2023 Category: Biochemistry Authors: Qiao-Jing Jia Cui-Luan Yao Source Type: research

Characterization of caspase gene family in Sebastes schlegelii and their expression profiles under Aeromonas salmonicida and Vibrio anguillarum infection
This study provides a comprehensive understanding of the caspase gene families in S. schlegelii, thereby establishing a solid foundation for further investigations into the functional roles of these caspase genes.PMID:37913865 | DOI:10.1016/j.cbpb.2023.110913 (Source: Comparative biochemistry and physiology. Part B, Biochemistry and molecular biology.)
Source: Comparative biochemistry and physiology. Part B, Biochemistry and molecular biology. - November 1, 2023 Category: Biochemistry Authors: Haohui Yu Xu Yan Ningning Wang Xiantong Liu Ting Xue Chao Li Xiaoyan Zhang Source Type: research

Oxidative phosphorylation rather than glycolysis is the primary energy source for sperm motility in the mussels Mytilus edulis
Comp Biochem Physiol B Biochem Mol Biol. 2023 Oct 26:110909. doi: 10.1016/j.cbpb.2023.110909. Online ahead of print.ABSTRACTBroadcast-spawning marine mussels rely on high sperm motility for successful fertilization in the dynamic seawater environment. Mitochondria are typically considered the primary source of ATP generation via oxidative phosphorylation (OXPHOS); however, the ATP generation pathways of mussel sperm have not been fully characterized. To better understand the importance of both OXPHOS and glycolysis for mussel sperm function, we conducted experiments inhibiting these pathways in sperm from Mytilus edulis. O...
Source: Comparative biochemistry and physiology. Part B, Biochemistry and molecular biology. - October 28, 2023 Category: Biochemistry Authors: Hui Kong Inna M Sokolova Source Type: research

Physiological indices and liver gene expression related to glucose supply in Brandt's vole (Lasiopodomys brandtii) exhibit species- and oxygen concentration-specific responses to hypoxia
This study aimed to investigate characteristics in physiological indices and liver gene expression associated with glucose supply in Brandt's voles under hypoxia. Serum glucose of Brandt's voles remained stable under 10% O2, increased under 7.5% O2, and decreased under 5% O2. Serum lactate increased under 10% O2, decreased under 7.5% O2, increased at 6 h and decreased at 12 h under 5% O2. Liver glycogen increased under 10% O2, remained constant under 7.5% O2, and reduced under 5% O2. Pepck and G6pase expression associated with gluconeogenesis decreased under 10% O2, while Pepck expression decreased and G6pase expression in...
Source: Comparative biochemistry and physiology. Part B, Biochemistry and molecular biology. - October 28, 2023 Category: Biochemistry Authors: Dan Pan Yuhua Shi Maolin Huang Xiujuan Li Zishi Wang Yifeng Zhang Hong Sun Zhenlong Wang Source Type: research