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| 1 | Cell–cell contact with proinflammatory macrophages enhances the immunotherapeutic effect of mesenchymal stem cells in two abortion models显示文摘Mesenchymal stem cells(MSCs),which are pluripotent cells with immunomodulatory properties,have been considered good candidates for the therapy of several immune disorders,such as inflammatory bowel diseases,concanavalin A-induced liver injury,and graft-versus-host disease.The embryo is a natural allograft to the maternal immune system.A successful pregnancy depends on the timely extinction of the inflammatory response induced by embryo implantation,followed by the switch to a tolerant immune microenvironment in both the uterus and the system.Excessive infiltration of immune cells and serious inflammatory responses are triggers for embryo rejection,which results in miscarriage.Here,we demonstrated that adoptive transfer of MSCs could prevent fetal loss in a lipopolysaccharide(LPS)-induced abortion model and immune response-mediated spontaneous abortion model.The immunosuppressive MSCs alleviated excessive inflammation by inhibiting CD4+T cell proliferation and promoting the decidual macrophage switch to M2 in a tumor necrosis factor-stimulated gene-6(TSG-6)-dependent manner.Cell-tocell contact with proinflammatory macrophages increased the TSG-6 production by the MSCs,thereby enhancing the suppressive regulation of T cells and macrophages.Moreover,proinflammatory macrophages in contact with the MSCs upregulated the expression of CD200 on the stem cells and facilitated the reprogramming of macrophages towards an anti-inflammatory skew through the interaction of CD200 with CD200R on proinflammatory macrophages.Therefore,the results demonstrate that a TSG-6-mediated paracrine effect,reinforced by cell-to-cell contact between MSCs and proinflammatory macrophages,is involved in the mechanism of MSC-mediated abortion relief through the induction of immune tolerance.Our study also indicates the potential application of MSCs in clinical recurrent miscarriages. | Yanhong Li Di Zhang Ling Xu Lin Dong Ji Zheng Yikong Lin Jiefang Huang Yanyun Zhang Yu Tao Xingxing Zang Dajin Li Meirong Du | 2019 | Cellular & Molecular Immunology2019，16，12： | 23 |
| 2 | SCM-198 protects endometrial stromal cells from oxidative damage through Bax/Bcl-2 and ERK signaling pathways显示文摘In creasi ng amounts of evidence dem on strated that accumulative reactive oxyge n species (ROS) and apoptosis of human endometrial stromal cells (ESCs) are closely associated with endometrial dysfunction induced by oxidative stress, which plays an important role in the pathological process of multiple gyn ecological and reproduction-related diseases. SCM-198, an alkaloid active component of Leonurus japonicas Houtt, has been reported to have anti-oxidative activity. However, the specific mechanisms of SCM-198 in the prevention of endometrial damage remain unknown. In the present study, we assessed the effect of SCM-198 on hydrogen peroxide (H2O2Hnduced oxidative injury in ESCs. ESCs were pretreated with SCM-198 for 4 h and then challenged with H2O2.Morphology ch a nges, apoptosis rate, and intracellular ROS producti on were measured to assess the level of oxidative injury. Flow cytometry and western blot analysis were performed to detect the expression levels of Bax, Bcl-2, active-caspase-3, and mitogen-activated protein kinases pathways. Classic inflammation cytokines were measured by real-time polymerase chain reactions. Our results showed that SCM-198 attenuated apoptosis and ROS generation of ESCs induced by H2O2. H2O2 induced the apparent apoptotic characteristics, including fragmentation of DNA, upregulation of Bax/Bcl2, activation of caspase-3, and secretion of inflammation cytokines, which were all ameliorated by SCM-198. Furthermore, H2O2-induced apoptosis-related ERK1/2 pathway activation was restrained by SCM-198 pretreatme nt. These fin dings suggested that SCM-198 could protect ESCs from oxidative injury, mainly by inhibiting oxidative stress and reducing apoptosis. | Yunyun Li Yikong Lin Xixi Huang Chunfang Xu Xinhua Liu Li Wang Min Yu Dajin Li Yizhun Zhu Meirong Du | 2019 | Acta Biochimica et Biophysica Sinica2019，51，6： | 10 |
| 3 | Activation of Rev-erbα attenuates lipopolysaccharide-induced inflammatory reactions in human endometrial stroma cells via suppressing TLR4-regulated NF-κB activation显示文摘Perturbation of the circadian rhythm damages the biological characteristics of cells and leads to their dysfunction. Rev-erbα, an important gene in the transcription-translation loop of circadian rhythm, is involved in regulating the balance between pro-inflammation and anti-inflammation. The disruption of this balance in human endometrial stroma cells (hESCs) destroys their biological behavior function in maintaining the menstrual cycle and embryonic implantation. Whether pharmacological modulation of Rev-erbα affects the inflammation of hESCs remains unclear. In this study, we treated hESCs with lipopolysaccharide (LPS) and found that LPS treatment increased the mRNA levels of pro-inflammatory cytokines, such as interleukin (IL)-1β, IL-6, IL-8, IL-18, and TNFα, and the secretion of IL-6. SR9009, a Rev-erbα agonist, significantly alleviated the LPS-induced production of pro-inflammatory cytokines in hESCs. Meanwhile, knockdown of Rev-erbα increased the expressions of IL-1β, IL-6, and IL-8, accompanied by an increased mRNA level of the core clock gene Bmal1. Western blot analysis showed that SR9009 inhibited the expression of toll-like receptor 4 (TLR4) and the activation of NF-κB induced by LPS. All these findings suggested that pharmacological activation of Rev-erbα attenuated the LPS-induced inflammatory response of hESCs by suppressing TLR4-regulated NF-κB activation. This study may provide a strategy for preventing inflammation-related endometrial dysfunction and infertility or recurrent implantation failure. | Weijie Zhao Liyuan Cui Xixi Huang Songcun Wang Dajin Li Liping Li Yan Sun Meirong Du | 2019 | Acta Biochimica et Biophysica Sinica2019，51，9： | 8 |
| 4 | Size fraction of phytoplankton and the contribution of natural plankton to the carbon source of Zhikong scallop Chlamys farreri in mariculture ecosystem of the Sanggou Bay显示文摘The biomass and size fraction of phytoplankton in terms of chlorophyll a(Chl a) was measured during four cruises conducted in April, July, October 2013 and January 2014 in mariculture area, the Sanggou Bay, China.Results show that total Chl a levels in the surface seawater of the Sanggou Bay generally range from 0.10 to 20.46μg/L, with an average value of 2.13 μg/L. Nano-phytoplankton was the most important size-fraction and accounted for about 65.1% of total Chl a. In order to evaluate the importance of the 'protozoan trophic link' for energy transfer from the microbial loop to filter-feeding feeders, Zhikong scallop Chlamys farreri was then offered a natural planktonic community as potential prey. Results show that scallops obtained carbon source from natural plankton with the rate of 11 033.05 μg/(g·d). Protists(nanoflagellates and ciliates) were the dominant source of carbon retained by scallop(48.78%). The microbial loop provided 58.45% of the carbon source for farmed scallops. These results indicate that the microbial loop represent a valuable trophic resource in mariculture system of the Sanggou Bay. | JIANG Zengjie DU Meirong FANG Jinghui GAO Yaping LI Jiaqi ZHAO Li FANG Jianguang | 2017 | Acta Oceanologica Sinica2017，36，10： | 4 |
| 5 | Elastic Scattering of 7Be on Pb Target显示文摘 | Yang Yanyun Wang Jiansong Wang Qi Huang Meirong Ma Junbing Ma Peng Cao Xiguang Han Jianlong Bai Zhen Jin Shilong Hu Qiang Jin Lei Chen Jiangbo Zhang Xueying Chen Ruofu Hu Zhengguo Xu Shiwei Zhen Chuan Xu Zhiguo Xu Hushan Duan Liming Sun Zhiyu Chen Zhiqiang He Jianjun Li Songlin Lei Xiangguo Fu Fen Zhang Xueheng Yuan Xiaohua Du Chengming Yan Xinshuang Hu Jun Tang Shuwen Ye Ruiping Yang Kun Shi Fudong Zhang Wei Chen Ze Li Long Xu Xing Liu Longxiang Zhang Liyong Lin Qingyun Gou Boxing Xu Ge Zhou Xionghong Zhang Yuhu Xiao Guoqing | 2011 | IMP & HIRFL Annual Report2011，，1： | 4 |
| 6 | Regulatory mechanisms of endometrial decidualization and pregnancy-related diseases显示文摘Endometrial decidualization is one of the earlest changes by which the uterus adapts to pregnancy.During this period,the endometrium undergoes complex changes in its biochemistry,physiology,and function at various levels,providing a suitable microenvironment for embryo implantation and development.Favorable decidualization lays an essential foundation for subsequent gestation,without which pregnancy failure or pregnancy complications may occur.The interaction between pregnancy-related hormones and cytokines produced by embryonic and uterine cells is known to be essential for decidualization,in which some transcription factors also play pivotal roles.Increasing evidence has revealed the importance of metabolism in regulating decidualization.Here,we summarize and discuss these crucial elements in decidualization and the relationship between decidualization and pregnancy complications.A better comprehension of these issues should help to improve the prediction of pregnancy outcomes and the use of appropriate intervention. | Yifei Sang Yanhong Li Ling Xu Dajin Li Meirong Du | 2020 | Acta Biochimica et Biophysica Sinica2020，52，2： | 4 |
| 7 | Assessing the effects of oyster/kelp weight ratio on water column properties: an experimental IMTA study at Sanggou Bay, China显示文摘Integrated Multi-Trophic Aquaculture(IMTA)is an effective method for sustainable aquaculture as species from different trophic levels could reduce negative effects from fed species in the environment.A proper proportion of different trophic species in an IMTA system could improve the aquaculture production and environmental sustainability.At present,research on the proper proportions for farming species is scarce.We investigated the effects of IMTA modes of oyster(Crassostrea gigas)and kelp(Saccharina japonica)in different weight ratios on water quality and carbonate system in a closed enclosure experiment for three days in the Sanggou Bay in Shandong Province,China,in December 2017.Nine collocation modes in oyster:kelp weight ratio were tested showing as 24:3,24:2,24:1,16:3,16:2,16:1,8:3,8:2,and 8:1.The water parameters were determined at 17:00 on Day 1(D1),and 6:00 and 17:00 on Days 2(D2)and 3(D3).As two-way ANOVA showed,all increased parameters(dissolved oxygen(DO),pH,chl a,the carbonate system and pCO2)were significantly related to oyster-kelp modes,and interaction between modes and time were also significant(P<0.05).On the 3th day,the 8:3 mode was the highest in DO,pH,chl a,CO32-(P<0.05),and dissolved inorganic carbon(DIC),HCO3-,CO2,and pCO2 were the lowest(P<0.05).According to previous references and the results of this study,the appropriate oyster:kelp proportion at the beginning of winter is from 8:2 to 8:3.The results of this study may help government to optimize the aquaculture structure of Sanggou Bay. | FANG Jinghui FANG Jianguang CHEN Qionglin MAO Yuze JIANG Zengjie DU Meirong GAO Yaping LIN Fan | 2020 | Journal of Oceanology and Limnology2020，38，6： | 2 |
| 8 | SCM-198 ameliorates endometrial inflammation via suppressing the LPS-JNK-cJUN/cFOS-TLR4-NF-κB pathway显示文摘Endometritis is an inflammatory disease of the endometrium,which is responsible for endometrial dysfunction,decidualization failure,and increased incidence of early pregnancy loss.SCM-198,a synthetic form of leonurine,is well known to possess anti-inflammatory effects.SCM-198 has been reported to display beneficial effects on endometritis.However,the specific mechanisms of SCM-198 in preventing endometritis remain unknown.In this study,we focused on the molecular mechanism of SCM-198 in inhibiting endometritis.The anti-inflammatory effects and the related signaling pathways of SCM-198 were studied in vitro using human endometrial stromal cells(hESCs).Reverse transcriptase-polymerase chain reaction and western blot analysis results demonstrated that SCM-198 markedly inhibited lipopolysaccharide(LPS)-induced endometrial inflammatory response by suppressing the LPS-JNK-cJUN/cFOS-TLR4-NF-κB pathway.The preventive and therapeutic effects of SCM-198 on endometrial inflammation were explored by using a mouse model of LPS-induced endometritis.SCM-198 produced essentially the same effects when administered either post-treatment(after LPS)or pre-treatment(before LPS)via vaginal or intraperitoneal administration.In vivo results indicated that SCM-198 is a potential effective drug for the treatment of endometritis. | Yikong Lin Yunyun Li Xinyi Li Xinhua Liu Xiaolin Wang Min Yu Yizhun Zhu Meirong Du | 2021 | Acta Biochimica et Biophysica Sinica2021，53，9： | 1 |
| 9 | Melatonin regulates proliferation and apoptosis of endometrial stromal cells via MT1显示文摘Endometrial dysfunction is an important factor for implantation failure.The function of the endometrium is regulated by multiple factors like sex hormones and circadian rhythms.Endometrial stromal cells(ESCs)are a major cellular component in the endometrium,which is essential for proper physiological activities of the endometrium and the establishment of pregnancy.Melatonin,as a circadian-controlled hormone,plays beneficial roles in the regulation of reproductive processes.MT1,a melatonin receptor,can regulate cell proliferation and apoptosis.Whether melatonin-MT1 signal affects biological function of ESCs remains unknown.Here,we showed that MT1 was expressed in human ESCs(hESCs),which could be regulated by estrogen and progesterone.MT1 knockdown inhibited proliferative activity and promoted apoptosis of hESCs by activating caspase-3 and upregulating the Bax/Bcl2 ratio.Melatonin could reverse the effect of MT1 knockdown on proliferative activity and apoptosis of hESCs.Melatonin could promote proliferative activity of hESCs via the JNK/P38 signal pathway and repress the apoptosis of hESCs via the JNK signal pathway.Moreover,in vivo experiments showed that MT1 expression was decreased in endometrial cells from mice with disrupted circadian rhythm,accompanied by increased apoptosis and suppressed proliferative activity,which could be alleviated by administration of melatonin.These results showed the regulatory effect of melatonin-MT1 signal on biological behaviors of ESCs,which might provide a novel therapeutic strategy for endometrial dysfunction induced by disrupted circadian rhythm. | Liyuan Cui Feng Xu Zhuxuan Jiang Songcun Wang Xinyi Li Yan Ding Ying Zhang Meirong Du | 2021 | Acta Biochimica et Biophysica Sinica2021，53，10： | 1 |
| 10 | Picropodophyllin inhibits type I endometrial cancer cell proliferation via disruption of the PI3K/Akt pathway显示文摘The type-I insulin-like growth factor receptor (IGF-IR) is overexpressed in endometrial cancer. High IGF-IR expression was considered as an important prognostic factor for tumor progression. The purpose of this study was to investigate the role and molecular mechanism of IGF-IR inhibitor picropodophyllin (PPP) in the growth and development of endometrial cancer. High expression of IGF-IR was observed in endometrial cancer tissues, as well as in ECC-1 and KLE cell lines. PPP suppressed the number of clones of ECC-1 and KLE cell lines;however, it had no significant effect on HEC-1-A cell line, which expressed lower IGF-IR than ECC-1 and KLE cell lines. Furthermore, PPP reduced cell proliferation capacity, inhibited the IGF-IR mRNA expression, and suppressed protein phosphorylation of IGF-IR and Akt in the three cell lines. In addition, PPP inhibited the protein expression of survivin in KLE cell line after 1 h of exposure, though this effect did not last for prolonged time. In conclusion, IGF-IR was mostly overexpressed in type I endometrial cancer. High IGF-IR expression was an important prognostic factor of tumor progression. PPP mediated the down-regulation of IGF-IR phosphorylation and inhibited cell proliferation via the PI3K/Akt signal pathway. PPP may have the potential to become a clinical treatment target in endometrial carcinoma. | Lin Dong Meirong Du Qianzhou Lv | 2019 | Acta Biochimica et Biophysica Sinica2019，51，7： | 1 |
| 11 | Targeting UHRF1-SAP30-MXD4 axis for leukemia initiating cell eradication in myeloid leukemia显示文摘Aberrant self-renewal of leukemia initiation cells(LICs)drives aggressive acute myeloid leukemia(AML).Here,we report that UHRF1,an epigenetic regulator that recruits DNMT1 to methylate DNA,is highly expressed in AML and predicts poor prognosis.UHRF1 is required for myeloid leukemogenesis by maintaining self-renewal of LICs.Mechanistically,UHRF1 directly interacts with Sin3A-associated protein 30(SAP30)through two critical amino acids,G572 and F573 in its SRA domain,to repress gene expression.Depletion of UHRF1 or SAP30 derepresses an important target gene,MXD4,which encodes a MYC antagonist,and leads to suppression of leukemogenesis.Further knockdown of MXD4 can rescue the leukemogenesis by activating the MYC pathway.Lastly,we identified a UHRF1 inhibitor,UF146,and demonstrated its significant therapeutic efficacy in the myeloid leukemia PDX model.Taken together,our study reveals the mechanisms for altered epigenetic programs in AML and provides a promising targeted therapeutic strategy against AML. | Cheng-Long Hu Bing-Yi Chen Zijuan Li Tianbiao Yang Chun-Hui Xu Ruirui Yang Peng-Cheng Yu Jingyao Zhao Ting Liu Na Liu Bin Shan Qunling Zhang Junhong Song Ming-Yue Fei Li-Juan Zong Jia-Ying Zhang Ji-Chuan Wu Shu-Bei Chen Yong Wang Binhe Chang Dan Hou Ping Liu Yilun Jiang Xiya Li Xinchi Chen Chu-Han Deng Yi-Yi Ren Roujia Wang Jiacheng Jin Kai Xue Ying Zhang Meirong Du Jun Shi Ling-Yun Wu Chun-Kang Chang Shuhong Shen Zhu Chen Sai-Juan Chen Xiaolong Liu Xiao-Jian Sun Mingyue Zheng Lan Wang | 2022 | Cell Research2022，32，12： | 1 |
| 12 | Applicability of Perinereis aibuhitensis Grube for Fish Waste Removal from Fish Cages in Sanggou Bay,P.R.China显示文摘The present study investigated the applicability of integrated polychaete-fish culture for fish waste removal to offset negative impact induced by organic benthic enrichment.A field study demonstrated that deposition rate was significantly higher underneath the fish farm than that in control area.The material settling under the farm was characterized by a high amount of fish feces(45%) and uneaten feed(27%).Both feeding rate(FR) and apparent digestibility rate(ADR) increased with decreasing body weight,as was indicated by significantly a higher rate observed for the groups containing smaller individuals in a lab study.The nutrient in fresh deposited material(De) was higher than that in sediments collected under the farm(Se),resulting in lower feces production but higher apparent digestibility rate for the De group as feeding rate was similar.Consequently,higher nutrient removal efficiency was observed in the De group.A mass balance approach indicated that approximately 400–500 individuals m^(-2) is required for removing all waste materials deposited underneath the fish farm,whereas abundance can be lower(about 300–350 individuals m^(-2)) when only the fish waste needs to be removed.The results showed that a significant amount of waste had been accumulated in the fish cages in Sanggou Bay.The integration of fish with P.aibuhitensis seems promising for preventing organic pollution in the sediment and therefore is an effective strategy for mitigating negative effect of fish farms.Thus such integration can become a new IMTA(integrated multi-trophic aquaculture) model in Sanggou Bay. | FANG Jinghui JIANG Zengjie JANSEN Henrice M. HU Fawen FANG Jianguang LIU Yi GAO Yaping DU Meirong | 2017 | Journal of Ocean University of China2017，16，2： | 1 |
| 13 | Response of Yesso scallop Patinopecten yessoensis to acute temperature challenge: physiological and biochemical parameters显示文摘Water temperature is generally considered to be a major factor af fecting the physiological and biochemical activities of marine bivalves. Here, the physiological and biochemical responses of Yesso scallop, Patinopecten yessoensis, to acute water temperature changes in summer were studied. Scallops were transferred directly to a lower temperature( T dec treatment)(from 23°C to 15°C) or to a higher temperature( Ti nc treatment)(from 15°C to 23°C) for 72 h, respectively. Results showed that the oxygen consumption and ammonia-N excretion rates of P. yessoensis decreased signi?cantly in the T dec treatment but increased dramatically at 6 h in the Ti nc treatment( P <0.05). In the T dec treatment, hepatopancreas antioxidant enzyme activities, superoxide dismutase(SOD) and catalase(CAT) activities, increased substantially within 72 h( P <0.05). However, a signi?cant decrease in CAT activity was found at 12 h in the Ti nc treatment( P <0.01).A signi?cant enhancement of acid phosphatase(ACP) activity and malondialdehyde(MDA) content was detected when scallops were acutely exposed to a temperature of 15°C. The levels of Cu/Zn-SOD gene expression in their gills up-regulated signi?cantly in response to acute temperature changes( P <0.01). These data suggest that acute temperature change af fects physiological and biochemical functions, and improve our knowledge of P. yessoensis under conditions of thermal stress. | JIANG Weiwei DU Meirong FANG Jianguang GAO Yaping MAO Yuze CHEN Qionglin LIN Fan JIANG Zengjie | 2019 | Journal of Oceanology and Limnology2019，37，1： | 1 |
| 14 | TIM-3: a crucial regulator of NK cells in pregnancy显示文摘In pregnancy,the maternal immune system(including innate and adaptive immunity)makes elaborate adjustments to endure the embryo’s expression of paternal antigens and to protect the embryo from attacks by invading pathogens such as bacteria or viruses.1 As the predominant innate immune cells during gestation,natural killer(NK)cells have been proven to mediate the establishment of maternal-fetal immune tolerance and to initiate appropriate defenses against infections.2 Tim-3,a member of the T-cell immunoglobulin and mucin domain proteins,has emerged as a key molecule in both innate and adaptive responses and represents a promising novel therapeutic target. | Yanhong Li Dajin Li Meirong Du | 2017 | Cellular & Molecular Immunology2017，14，11： | 1 |
| 15 | Nucleolus localization of SpyCas9 affects its stability and interferes with host protein translation in mammalian cells显示文摘The CRISPR/Cas9 system,originally derived from the prokaryotic adaptive immune system,has been developed as efficient genome editing tools.It enables precise gene manipulation on chromosomal DNA through the specific binding of programmable sgRNA to target DNA,and the Cas9 protein,which has endonuclease activity,will cut a double strand break at specific locus.However,Cas9 is a foreign protein in mammalian cells,and the potential risks associated with its introduction into mammalian cells are not fully understood.In this study,we performed pull-down and mass spectrometry(MS)analysis of Streptococcus pyogenes Cas9(SpyCas9)interacting proteins in HEK293T cells and showed that the majority of Cas9-associated proteins identified by MS were localized in the nucleolus.Interestingly,we further discovered that the Cas9 protein contains a sequence encoding a nucleolus detention signal(NoDS).Compared with wild-type(WT)Cas9,NoDS-mutated variants of Cas9(mCas9)are less stable,although their gene editing activity is minimally affected.Overexpression of WT Cas9,but not mCas9,causes general effects on transcription and protein translation in the host cell.Overall,identification of NoDS in Cas9 will improve the understanding of Cas9's biological function in vivo,and the removal of NoDS in Cas9 may enhance its safety for future clinical use. | Renke Tan Wenhao Du Yiyang Liu Xiaoji Cong Meirong Bai Chenxiao Jiang Zengxia Li Minjia Tan Dengke K.Ma Qiang Huang Wei Jiang Yongjun Dang | 2022 | Genes & Diseases2022，9，3： | 0 |
| 16 | Application of biofl oc technology in recirculation A rtemia culture system显示文摘Biofl oc technology(BFT)improves water quality,and productivity of the farmed species through converting ammonium nitrogen to microbial protein,stabilizing microbial community,and reducing the production cost.In this study,a small-scale biofl oc development unit was designed in combination of recirculation system(RAS)for Artemia culture.Artemia growth,water quality,and microbial composition of biofl ocs in RAS were studied in comparison with in-situ batch culture(Glu).Glucose was added in RAS and Glu at C/N ratio of 10.The cultures without glucose addition,but with 50%daily water renewal(WRe)and without water renewal(NWRe)were considered as the controls.Arte mia were cultured at 25℃ and salinity 30 for 24 days and fed formulated feed.The results showed that compared to the controls,Glu signifi cantly improved the Artemia biomass,increased the biofl oc volume,and reduced the content of total ammonia nitrogen(TAN),nitrite nitrogen(NO_(2)-N)and nitrate nitrogen(NO_(3)-N)in water column(P<0.05).In addition,RAS had similar results with Glu.High throughput sequencing analysis on biofl oc microbial composition demonstrated that glucose supplement shaped the microbial community structure,and increased proportion of potential probiotic bacteria and suppressed pathogenic bacteria growth.Furthermore,we analyzed the relationship between the microbial composition of biofl oc and environmental factors.Canonical correspondence analysis(CCA)indicated that inorganic nitrogen in culture water had great impact on biofl oc microbial composition in NWRe and WRe,whilst the dissolved organic carbon(DOC)modifi ed the microbial community in Glu and RAS.This study shows the advantages of BFT in Artemia culture and provides practical information for applying BFT-RAS in indoor Artemia culture. | Xuejiao LIANG Chi ZHANG Dongdong DU Meirong GAO Liying SUI | 2022 | Journal of Oceanology and Limnology2022，40，4： | 0 |
| 17 | Transcriptomes of Litopenaeus vannamei reveal modulation of antioxidant system induced by dietary archaeal carotenoids显示文摘Oxidative stress induced by factors such as ammonia nitrogen has become a major issue in shrimp farming.The effects of carotenoids on the growth and antioxidant capability of Litopenaeus vannamei juveniles were investigated in this study using dietary archaeal carotenoids supplementation.For four weeks,shrimp were given diets containing 0 mg/kg(Ctrl)and 55.98 mg/kg(Car)archaeal carotenoids.Dietary archaeal carotenoids significantly enhanced the astaxanthin content in shrimp muscles and carapaces,as well as the superoxide dismutase(SOD)and glutathione peroxidase(GSH-Px)activity(P<0.05).The malonaldehyde(MDA)content in Car group significantly decreased(P<0.05).The transcriptome analysis was conducted to determine the molecular processes in response to archaeal carotenoids supplementation.A total of 1536 differentially expressed genes(DEGs)were detected,including 538 upregulated DEGs and 998 downregulated DEGs.GO functional enrichment analysis between Ctrl and Car indicated that 26 GO terms including extracellular region,metabolic process,and proteolysis were enriched.The KEGG pathway enrichment analysis revealed that the amino sugar and nucleotide sugar metabolism,cysteine and methionine metabolism,glycine serine and threonine metabolism,and amino acid biosynthesis were enriched.Archaeal carotenoids influenced the expression of several important genes involved in reactive oxygen species(ROS)generation,Nrf2 signaling,and antioxidant enzymes.Seven DEGs were chosen to confirm the RNA-Seq data using qRT-PCR.The genes and pathways discovered in this work assist to elucidate the molecular processes through which archaeal carotenoid enhances L.vannamei antioxidative system. | Wei XIE Guoru DU Honggang DENG Yingchao MA Meirong GAO Hu DUAN Sung YIK YEONG Liying SUI | 2023 | Journal of Oceanology and Limnology2023，41，5： | 0 |
| 18 | Tolerance, Oxygen Consumption and Ammonia Excretion of Ophiopholis sarsii vadicola in Different Temperatures and Salinities显示文摘There are more than 2000 species of brittle stars in the world. For most of them, many scientific questions including basic characteristics of eco-physiology are still unknown. In the present study, Ophiopholis sarsii vadicola acclimated at 15℃, salinity 31, were assessed for temperature and salinity tolerance. Its oxygen consumption and ammonia excretion were studied at different temperatures(5, 10, 15, 20, 25℃) and salinities(25, 30, 35). O. sarsii vadicola could tolerate 0–24℃ and no brittle star was dead in the salinity range of 19–48 in the experimental situation. Two-way ANOVA showed that the oxygen consumption and ammonia excretion normalized with both dry mass and wet mass, Q10, which is used to describe the temperature sensitivity of respiration, and moisture content were significantly affected by temperature and salinity, and the combined effects of the two factors were significant. Stepwise multiple regression analysis revealed that logarithmic oxygen consumption and ammonia excretion showed a significant positive relationship with logarithmic temperature and salinity. The logarithmic moisture content of the brittle stars showed an inverse relationship with logarithmic salinity, but a positive relationship with logarithmic temperature. This suggests that the tolerance of temperature and salinity of brittle stars is closely related to their living environment, and that the effects of temperature on oxygen consumption are more significant at higher salinity, and that the ammonia excretion is less affected by salinity at lower temperatures. | FANG Jinghui ZHANG Jihong JIANG Zengjie ZHAO Xuewei JIANG Xu DU Meirong GAO Yaping FANG Jianguang | 2015 | Journal of Ocean University of China2015，14，3： | 0 |
| 19 | Photosynthetic and metabolic responses of eelgrass Zostera marina L. to short-term high-temperature exposure显示文摘In recent years, extreme heat events have occurred worldwide and the ocean temperature has been rising, causing stress on the photosynthesis and growth of seagrass. Metabolomics enables detection of metabolic changes under environmental stress. In this study, the photosynthetic physiology and metabolic changes of the eelgrass Zostera marina L. in response to 48 h exposure to 32°C were investigated. The results showed that high temperature induced signi?cant inhibition of photosynthetic effciency(Δ F/F′ m)(23.9%lower than the control), enhanced respiration(58.3% higher), and decreased carbohydrate decomposition products and tricarboxylic acid(TCA) cycle intermediate products, indicating that the energy supply of the eelgrass may be insuffcient at high temperature. In addition, high temperature decreased stearic acid and linoleic acid in eelgrass, suggesting the composition of the membrane system of eelgrass may change at high temperature and implying that high temperature may cause the membrane system to be unstable. | GAO Yaping JIANG Zengjie DU Meirong FANG Jinghui JIANG Weiwei FANG Jianguang | 2019 | Journal of Oceanology and Limnology2019，37，1： | 0 |
| 20 | Decidualization-derived cAMP regulates phenotypic and functional conversion of decidual NK cells from CD56dimCD16− NK cells显示文摘In early pregnancy,the decidua is populated by a large number of natural killer cells(NKs),most of which are CD56bright with a strong capacity to secrete cytokines,differing from peripheral and cord blood NK cells(pNKs and cNKs).1,2,3 It is generally believed that uterine NKs are recruited from the peripheral blood and are further educated to develop a decidual NK cell(dNK)-like phenotype in the microenvironment at the maternal-fetal interface.4 However,the defined mechanisms involved in this education remain unclear. | Xueling Jin Liyuan Cui Weijie Zhao Xinyi Li Lu Liu Yanhong Li Qiang Fu Dajin Li Min Yu Meirong Du | 2021 | Cellular & Molecular Immunology2021，18，6： | 0 |
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