Medicinal leeches have been utilized in therapy for thousands of years. However, the adaptation physiology between leeches and hosts is not fully understand. To disclose the molecular mechanisms of adaptation between ...Medicinal leeches have been utilized in therapy for thousands of years. However, the adaptation physiology between leeches and hosts is not fully understand. To disclose the molecular mechanisms of adaptation between leech and host, the body transcriptomes of hunger and fed blood-sucking Poecilobdella javanica, Haemadipsa cavatuses, and Hirudo nipponia leeches were obtained by RNA sequencing, after comparison, a stratified unigenes group was obtained, which closely correlated to body distension. In the group, Rfamide receptor decreased significantly (P < 0.05) while serotonin receptor increased significantly (P < 0.05). Moreover, four KEGG (Kyoto Encyclopedia of Genes and Genomes) pathways, including cardiac muscle contraction, complement and coagulation cascades, renin-angiotensin system, and hypertrophic cardiomyopathy were significantly enriched. The unigenes annotation, neuroregulators correlation analysis and induced function of the KEGG pathways, were consistently supported the same result as: vasoconstriction and systole reaction enhance in hunger leeches and vice versa vasodilation and diastole increase in fed leeches, meanwhile, Interspecific comparison and correlative analyses of physiological function showed that the strongest reaction of induced heart failure from four KEGG occur in strongest reaction of systole in hungry P. javanica and in strongest reaction of diastole in fed H. nipponia. Overall, heart failure is likely a physiological function involved in feeding behaviour.展开更多
[Objectives] To identify the species of Hirudo from different sources. [Methods] In accordance with morphological, anatomical and molecular taxonomic characteristics, the identification conclusion was drawn. [Results]...[Objectives] To identify the species of Hirudo from different sources. [Methods] In accordance with morphological, anatomical and molecular taxonomic characteristics, the identification conclusion was drawn. [Results] The living samples of Hirudo belong to 1 order, 2 families, 3 genera and 5 species, and the dry samples of medicinal leeches belong to 4 species. [Conclusions] The sources of medicinal leeches are complex, and there is a problem that Hirudo from different basic sources are mixed for medication.展开更多
The phenomenon in which cells prefer glycolysis to oxidative phosphorylation with increased lactate production is known as the Warburg effect and is found prevalent in cancer cells and pluripotent stem cells [1]. In a...The phenomenon in which cells prefer glycolysis to oxidative phosphorylation with increased lactate production is known as the Warburg effect and is found prevalent in cancer cells and pluripotent stem cells [1]. In addition to being an intermediate metabolite of glycolysis, lactate has been reported as a signal involved in multiple important biological processes, such as innate immunity [2], the cell cycle [3], hippocampal neurogenesis [4].展开更多
文摘Medicinal leeches have been utilized in therapy for thousands of years. However, the adaptation physiology between leeches and hosts is not fully understand. To disclose the molecular mechanisms of adaptation between leech and host, the body transcriptomes of hunger and fed blood-sucking Poecilobdella javanica, Haemadipsa cavatuses, and Hirudo nipponia leeches were obtained by RNA sequencing, after comparison, a stratified unigenes group was obtained, which closely correlated to body distension. In the group, Rfamide receptor decreased significantly (P < 0.05) while serotonin receptor increased significantly (P < 0.05). Moreover, four KEGG (Kyoto Encyclopedia of Genes and Genomes) pathways, including cardiac muscle contraction, complement and coagulation cascades, renin-angiotensin system, and hypertrophic cardiomyopathy were significantly enriched. The unigenes annotation, neuroregulators correlation analysis and induced function of the KEGG pathways, were consistently supported the same result as: vasoconstriction and systole reaction enhance in hunger leeches and vice versa vasodilation and diastole increase in fed leeches, meanwhile, Interspecific comparison and correlative analyses of physiological function showed that the strongest reaction of induced heart failure from four KEGG occur in strongest reaction of systole in hungry P. javanica and in strongest reaction of diastole in fed H. nipponia. Overall, heart failure is likely a physiological function involved in feeding behaviour.
文摘[Objectives] To identify the species of Hirudo from different sources. [Methods] In accordance with morphological, anatomical and molecular taxonomic characteristics, the identification conclusion was drawn. [Results] The living samples of Hirudo belong to 1 order, 2 families, 3 genera and 5 species, and the dry samples of medicinal leeches belong to 4 species. [Conclusions] The sources of medicinal leeches are complex, and there is a problem that Hirudo from different basic sources are mixed for medication.
基金supported by the National Key Research and Development Program of China (2023YFE0210100, 2022YFE0210100, 2019YFA0904500, 2022YFA1103800)the National Natural Science Foundation of China (32025010, 92157202, 32241002, 92254301, 92357302, 32261160376,31970709, 32070729, 32100619, 32170747, 32322022, 32370782, 32371007, 32300608, 32300620)+7 种基金NSFC/RGC Joint Grant Scheme 2022/2023 (N_CUHK 428/22)the Strategic Priority Research Program of the Chinese Academy of Sciences (XDB0480000)the Key Research Program, CAS (ZDBSZRKJZ-TLC003)International Cooperation Program, CAS (154144KYSB20200006)CAS Project for Young Scientists in Basic Research (YSBR-075)Guangdong Province Science and Technology Program (2023B0303000023, 2023B1111050005, 2023A1515030231, 2022A1515110493, 2023B1212060050, 2021A1515012513, 2021B1515020096, 2022A1515012616, 2022A1515110951, 2023B1212120009)Guangzhou Science and Technology Program (202102021037, 202102020827, 202102080066, 202206060002, 2023A04J0414)Health@Inno HK funding support from the Innovation Technology Commission of the Hong Kong SAR, Basic Research Project of Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences and CAS Youth Innovation Promotion Association。
文摘The phenomenon in which cells prefer glycolysis to oxidative phosphorylation with increased lactate production is known as the Warburg effect and is found prevalent in cancer cells and pluripotent stem cells [1]. In addition to being an intermediate metabolite of glycolysis, lactate has been reported as a signal involved in multiple important biological processes, such as innate immunity [2], the cell cycle [3], hippocampal neurogenesis [4].
