LIVIVO - The Search Portal for Life Sciences

zur deutschen Oberfläche wechseln
Advanced search

Search results

Result 1 - 10 of total 88

Search options

  1. Article: [Interaction of olfaction and feeding behavior and its neural mechanism].

    Zhou, Jian-Hong / Chen, Yan-Mei

    Sheng li xue bao : [Acta physiologica Sinica

    2021  Volume 74, Issue 2, Page(s) 276–282

    Abstract: Olfaction and food intake are interrelated and regulated. In the process of feeding, the metabolic signals in the body and the feeding signals produced by food stimulation are first sensed by the arcuate nucleus of hypothalamus and the nucleus tractus ... ...

    Abstract Olfaction and food intake are interrelated and regulated. In the process of feeding, the metabolic signals in the body and the feeding signals produced by food stimulation are first sensed by the arcuate nucleus of hypothalamus and the nucleus tractus solitarius of brain stem, and then these neurons project to the paraventricular nucleus of hypothalamus. The paraventricular nucleus transmits the signals to other brain regions related to feeding and regulates feeding behavior. In this process, olfactory signals can be transmitted to hypothalamus through olfactory bulb and olfactory cortex to regulate feeding behavior. At the same time, gastrointestinal hormones (ghrelin, insulin, leptin, etc.) and some neurotransmitters (acetylcholine, norepinephrine, serotonin, endocannabinoid, etc.) produced in the process of feeding act on the olfactory system to regulate olfactory function, which in turn affects the feeding itself. This review summaries the research progress of the interaction between olfaction and food intake and its internal mechanism from the aspects of neuronal and hormonal regulation.
    MeSH term(s) Arcuate Nucleus of Hypothalamus/metabolism ; Feeding Behavior/physiology ; Hypothalamus ; Paraventricular Hypothalamic Nucleus ; Smell
    Language Chinese
    Publishing date 2021-12-24
    Publishing country China
    Document type Journal Article ; Review
    ZDB-ID 604308-2
    ISSN 0371-0874
    ISSN 0371-0874
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  2. Article: Resolving deep evolutionary relationships within the RNA virus phylum

    Sadiq, Sabrina / Chen, Yan-Mei / Zhang, Yong-Zhen / Holmes, Edward C

    Virus evolution

    2022  Volume 8, Issue 1, Page(s) veac055

    Abstract: The RNA virus ... ...

    Abstract The RNA virus phylum
    Language English
    Publishing date 2022-06-14
    Publishing country England
    Document type Journal Article
    ZDB-ID 2818949-8
    ISSN 2057-1577
    ISSN 2057-1577
    DOI 10.1093/ve/veac055
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  3. Article ; Online: Theoretical insights into selective extraction of Am(III) from Cm(III) and Eu(III) with asymmetric N-heterocyclic ligands.

    Chen, Yan-Mei / Wang, Cong-Zhi / Zhang, Lei / Wu, Qun-Yan / Lan, Jian-Hui / Chai, Zhi-Fang / Shi, Wei-Qun

    Dalton transactions (Cambridge, England : 2003)

    2024  Volume 53, Issue 17, Page(s) 7406–7413

    Abstract: Separation of lanthanide (Ln) and minor actinide (MA) elements and mutual separation between minor actinide elements ( ...

    Abstract Separation of lanthanide (Ln) and minor actinide (MA) elements and mutual separation between minor actinide elements (
    Language English
    Publishing date 2024-04-30
    Publishing country England
    Document type Journal Article
    ZDB-ID 1472887-4
    ISSN 1477-9234 ; 1364-5447 ; 0300-9246 ; 1477-9226
    ISSN (online) 1477-9234 ; 1364-5447
    ISSN 0300-9246 ; 1477-9226
    DOI 10.1039/d3dt03965j
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  4. Article ; Online: Application of machine learning algorithm in predicting distant metastasis of T1 gastric cancer.

    Tian, HuaKai / Liu, Zitao / Liu, Jiang / Zong, Zhen / Chen, YanMei / Zhang, Zuo / Li, Hui

    Scientific reports

    2023  Volume 13, Issue 1, Page(s) 5741

    Abstract: Distant metastasis (DM) is relatively uncommon in T1 stage gastric cancer (GC). The aim of this study was to develop and validate a predictive model for DM in stage T1 GC using machine learning (ML) algorithms. Patients with stage T1 GC from 2010 to 2017 ...

    Abstract Distant metastasis (DM) is relatively uncommon in T1 stage gastric cancer (GC). The aim of this study was to develop and validate a predictive model for DM in stage T1 GC using machine learning (ML) algorithms. Patients with stage T1 GC from 2010 to 2017 were screened from the public Surveillance, Epidemiology and End Results (SEER) database. Meanwhile, we collected patients with stage T1 GC admitted to the Department of Gastrointestinal Surgery of the Second Affiliated Hospital of Nanchang University from 2015 to 2017. We applied seven ML algorithms: logistic regression, random forest (RF), LASSO, support vector machine, k-Nearest Neighbor, Naive Bayesian Model, Artificial Neural Network. Finally, a RF model for DM of T1 GC was developed. The AUC, sensitivity, specificity, F1-score and accuracy were used to evaluate and compare the predictive performance of the RF model with other models. Finally, we performed a prognostic analysis of patients who developed distant metastases. Independent risk factors for prognosis were analysed by univariate and multifactorial regression. K-M curves were used to express differences in survival prognosis for each variable and subvariable. A total of 2698 cases were included in the SEER dataset, 314 with DM, and 107 hospital patients were included, 14 with DM. Age, T-stage, N-stage, tumour size, grade and tumour location were independent risk factors for the development of DM in stage T1 GC. A combined analysis of seven ML algorithms in the training and test sets found that the RF prediction model had the best prediction performance (AUC: 0.941, Accuracy: 0.917, Recall: 0.841, Specificity: 0.927, F1-score: 0.877). The external validation set ROCAUC was 0.750. Meanwhile, survival prognostic analysis showed that surgery (HR = 3.620, 95% CI 2.164-6.065) and adjuvant chemotherapy (HR = 2.637, 95% CI 2.067-3.365) were independent risk factors for survival prognosis in patients with DM from stage T1 GC. Age, T-stage, N-stage, tumour size, grade and tumour location were independent risk factors for the development of DM in stage T1 GC. ML algorithms had shown that RF prediction models had the best predictive efficacy to accurately screen at-risk populations for further clinical screening for metastases. At the same time, aggressive surgery and adjuvant chemotherapy can improve the survival rate of patients with DM.
    MeSH term(s) Humans ; Stomach Neoplasms/diagnosis ; Bayes Theorem ; Algorithms ; Random Forest ; Machine Learning
    Language English
    Publishing date 2023-04-07
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2615211-3
    ISSN 2045-2322 ; 2045-2322
    ISSN (online) 2045-2322
    ISSN 2045-2322
    DOI 10.1038/s41598-023-31880-6
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  5. Article ; Online: Activation of mTORC1 Signaling Cascade in Hippocampus and Medial Prefrontal Cortex Is Required for Antidepressant Actions of Vortioxetine in Mice.

    Li, Wei-Yu / Shi, Tian-Shun / Huang, Jie / Chen, Yan-Mei / Guan, Wei / Jiang, Bo / Wang, Cheng-Niu

    The international journal of neuropsychopharmacology

    2023  Volume 26, Issue 10, Page(s) 655–668

    Abstract: Background: Although thought of as a multimodal-acting antidepressant targeting the serotonin system, more molecules are being shown to participate in the antidepressant mechanism of vortioxetine. A previous report has shown that vortioxetine ... ...

    Abstract Background: Although thought of as a multimodal-acting antidepressant targeting the serotonin system, more molecules are being shown to participate in the antidepressant mechanism of vortioxetine. A previous report has shown that vortioxetine administration enhanced the expression of rapamycin complex 1 (mTORC1) in neurons. It has been well demonstrated that mTORC1 participates in not only the pathogenesis of depression but also the pharmacological mechanisms of many antidepressants. Therefore, we speculate that the antidepressant mechanism of vortioxetine may require mTORC1.
    Methods: Two mouse models of depression (chronic social defeat stress and chronic unpredictable mild stress) and western blotting were first used together to examine whether vortioxetine administration produced reversal effects against the chronic stress-induced downregulation in the whole mTORC1 signaling cascade in both the hippocampus and medial prefrontal cortex (mPFC). Then, LY294002, U0126, and rapamycin were used together to explore whether the antidepressant effects of vortioxetine in mouse models of depression were attenuated by pharmacological blockade of the mTORC1 system. Furthermore, lentiviral-mTORC1-short hairpin RNA-enhanced green fluorescence protein (LV-mTORC1-shRNA-EGFP) was adopted to examine if genetic blockade of mTORC1 also abolished the antidepressant actions of vortioxetine in mice.
    Results: Vortioxetine administration produced significant reversal effects against the chronic stress-induced downregulation in the whole mTORC1 signaling cascade in both the hippocampus and mPFC. Both pharmacological and genetic blockade of the mTORC1 system notably attenuated the antidepressant effects of vortioxetine in mice.
    Conclusions: Activation of the mTORC1 system in the hippocampus and mPFC is required for the antidepressant actions of vortioxetine in mice.
    MeSH term(s) Mice ; Animals ; Vortioxetine/pharmacology ; Mechanistic Target of Rapamycin Complex 1/metabolism ; Antidepressive Agents/pharmacology ; Antidepressive Agents/metabolism ; Hippocampus ; Prefrontal Cortex/metabolism ; Sirolimus/pharmacology
    Chemical Substances Vortioxetine (3O2K1S3WQV) ; Mechanistic Target of Rapamycin Complex 1 (EC 2.7.11.1) ; Antidepressive Agents ; Sirolimus (W36ZG6FT64)
    Language English
    Publishing date 2023-04-06
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 1440129-0
    ISSN 1469-5111 ; 1461-1457
    ISSN (online) 1469-5111
    ISSN 1461-1457
    DOI 10.1093/ijnp/pyad017
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  6. Article ; Online: The antidepressant-like effects of escitalopram in mice require salt-inducible kinase 1 and CREB-regulated transcription co-activator 1 in the paraventricular nucleus of the hypothalamus.

    Shi, Tian-Shun / Li, Wei-Yu / Chen, Yan-Mei / Huang, Jie / Guan, Wei / Xu, Da-Wei / Jiang, Bo

    Journal of affective disorders

    2023  Volume 338, Page(s) 228–238

    Abstract: Background: The salt-inducible kinase 1 (SIK1)-CREB-regulated transcription co-activator 1 (CRTC1) system in the paraventricular nucleus (PVN) of the hypothalamus has been demonstrated to participate in not only depression neurobiology but also the ... ...

    Abstract Background: The salt-inducible kinase 1 (SIK1)-CREB-regulated transcription co-activator 1 (CRTC1) system in the paraventricular nucleus (PVN) of the hypothalamus has been demonstrated to participate in not only depression neurobiology but also the antidepressant mechanisms of fluoxetine, paroxetine, venlafaxine, and duloxetine. Like fluoxetine and paroxetine, escitalopram is also a well-known selective serotonin (5-HT) reuptake inhibitor (SSRI). However, recently it has been found that escitalopram can modulate a lot of targets other than the 5-HT system. Here, we speculate that escitalopram produces effects on the SIK1-CRTC1 system in the PVN.
    Methods: Two mice models of depression (chronic social defeat stress (CSDS) and chronic unpredictable mild stress (CUMS)), various behavioral tests, enzyme linked immunosorbent assay (ELISA), western blotting, co-immunoprecipitation (Co-IP), quantitative real-time reverse transcription PCR (qRT-PCR), immunofluorescence, and adeno-associated virus (AAV)-mediated gene transfer were used together in the present study.
    Results: It was found that escitalopram administration not only significantly prevented the hyperactivity of the hypothalamic-pituitary-adrenal (HPA) axis induced by CSDS and CUMS, but also notably reversed the effects of CSDS and CUMS on SIK1, CRTC1, and CRTC1-CREB binding in the PVN of mice. AAV-based genetic knock-down of SIK1 in PVN neurons evidently abolished the antidepressant-like effects of escitalopram in mice.
    Limitation: A shortage of this study is that only rodent models of depression were used, while human samples were not included.
    Conclusions: In summary, regulating the SIK1-CRTC1 system in the PVN participates in the antidepressant mechanism of escitalopram, which extends the knowledge of the pharmacological actions of escitalopram.
    MeSH term(s) Mice ; Humans ; Animals ; Escitalopram ; Paraventricular Hypothalamic Nucleus ; Paroxetine ; Fluoxetine ; Serotonin ; Antidepressive Agents/pharmacology ; Antidepressive Agents/therapeutic use ; Stress, Psychological/drug therapy ; Stress, Psychological/metabolism ; Depression/drug therapy ; Depression/genetics ; Depression/metabolism
    Chemical Substances Escitalopram (4O4S742ANY) ; Paroxetine (41VRH5220H) ; Fluoxetine (01K63SUP8D) ; Serotonin (333DO1RDJY) ; Antidepressive Agents
    Language English
    Publishing date 2023-05-29
    Publishing country Netherlands
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 135449-8
    ISSN 1573-2517 ; 0165-0327
    ISSN (online) 1573-2517
    ISSN 0165-0327
    DOI 10.1016/j.jad.2023.05.085
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  7. Article: Evolutionary trajectory of diverse SARS-CoV-2 variants at the beginning of COVID-19 outbreak.

    Lv, Jia-Xin / Liu, Xiang / Pei, Yuan-Yuan / Song, Zhi-Gang / Chen, Xiao / Hu, Shu-Jian / She, Jia-Lei / Liu, Yi / Chen, Yan-Mei / Zhang, Yong-Zhen

    Virus evolution

    2024  Volume 10, Issue 1, Page(s) veae020

    Abstract: Despite extensive scientific efforts directed toward the evolutionary trajectory of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) in humans at the beginning of the COVID-19 epidemic, it remains unclear how the virus jumped into and evolved ...

    Abstract Despite extensive scientific efforts directed toward the evolutionary trajectory of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) in humans at the beginning of the COVID-19 epidemic, it remains unclear how the virus jumped into and evolved in humans so far. Herein, we recruited almost all adult coronavirus disease 2019 (COVID-19) cases appeared locally or imported from abroad during the first 8 months of the outbreak in Shanghai. From these patients, SARS-CoV-2 genomes occupying the important phylogenetic positions in the virus phylogeny were recovered. Phylogenetic and mutational landscape analyses of viral genomes recovered here and those collected in and outside of China revealed that all known SARS-CoV-2 variants exhibited the evolutionary continuity despite the co-circulation of multiple lineages during the early period of the epidemic. Various mutations have driven the rapid SARS-CoV-2 diversification, and some of them favor its better adaptation and circulation in humans, which may have determined the waxing and waning of various lineages.
    Language English
    Publishing date 2024-03-05
    Publishing country England
    Document type Journal Article
    ZDB-ID 2818949-8
    ISSN 2057-1577
    ISSN 2057-1577
    DOI 10.1093/ve/veae020
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  8. Article: Historical context, process, and development trends of pediatric thyroid cancer research: a bibliometric analysis.

    Song, Chang / Luo, Jia-Yuan / Pang, Yu-Yan / He, Rong-Quan / Li, Xiao-Jiao / Chen, Gang / Zhao, Chun-Yan / Qu, Ning / Chen, Yan-Mei / Yang, Li / Li, Bi-Qi / Shi, Lin

    Frontiers in oncology

    2024  Volume 14, Page(s) 1340872

    Abstract: Objective: At present, the structure of knowledge in the field of childhood thyroid cancer is not clear enough, and scholars lack a sufficient understanding of the developing trends in this field, which has led to a shortage of forward-looking outputs. ... ...

    Abstract Objective: At present, the structure of knowledge in the field of childhood thyroid cancer is not clear enough, and scholars lack a sufficient understanding of the developing trends in this field, which has led to a shortage of forward-looking outputs. The purpose of this research is to help scholars construct a complete knowledge framework and identify current challenges, opportunities, and development trends.
    Methods: We searched the literature in the Web of Science Core Collection database on August 7, 2023 and extracted key information from the top 100 most cited articles, such as the countries, institutions, authors, themes, and keywords. We used bibliometric tools such as bibliometrix, VOSviewer, and CiteSpace for a visualization analysis and Excel for statistical descriptions.
    Results: The top 100 most cited articles fluctuated over time, and the research was concentrated in European countries, the United States, and Japan, among which scientific research institutions and scholars from the United States made outstanding contributions. Keyword analysis revealed that research has shifted from simple treatment methods for pediatric thyroid cancer (total thyroidectomy) and inducing factors (the Chernobyl power station accident) to the clinical applications of genetic mutations (such as the
    Conclusion: Extensive research has been conducted on the basic problems of pediatric thyroid cancer, and there has been significant outputs in the follow-up and cohort analysis of conventional diagnostic and treatment methods. However, these methods still have certain limitations. Therefore, scholars should focus on exploring fusion genes, the clinical applications of molecular targets, and novel treatment methods. This study provides a strong reference for scholars in this field.
    Language English
    Publishing date 2024-02-22
    Publishing country Switzerland
    Document type Journal Article ; Review
    ZDB-ID 2649216-7
    ISSN 2234-943X
    ISSN 2234-943X
    DOI 10.3389/fonc.2024.1340872
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  9. Article ; Online: Polymorphisms of the Vitamin D Receptor Gene and Sex-Differential Associations with Lipid Profiles in Chinese Han Adults.

    Chen, Yan Mei / Xu, Ping / Wang, Zhou Tian / Zhu, Yu Mei / Gong, Chun Mei / Huang, Chang Hua / Liu, Xiao Li / Zhou, Ji Chang

    Biomedical and environmental sciences : BES

    2022  Volume 35, Issue 2, Page(s) 115–125

    Abstract: Objective: To explore the association of single nucleotide polymorphisms (SNPs) of the vitamin D receptor gene ( : Methods: Of the Han Chinese adults recruited from a health examination center for inclusion in the study, the circulating lipids, 25- ... ...

    Abstract Objective: To explore the association of single nucleotide polymorphisms (SNPs) of the vitamin D receptor gene (
    Methods: Of the Han Chinese adults recruited from a health examination center for inclusion in the study, the circulating lipids, 25-hydroxyvitamin D (25OHD), and other parameters were measured. The
    Results: In the female participants (
    Conclusion: In the Chinese Han adults included in the study, the
    MeSH term(s) Adult ; Alleles ; Asians/ethnology ; Asians/genetics ; China/ethnology ; Dyslipidemias/blood ; Dyslipidemias/genetics ; Female ; Genetic Predisposition to Disease/ethnology ; Genetic Predisposition to Disease/genetics ; Genotype ; Humans ; Lipids/blood ; Male ; Middle Aged ; Polymorphism, Single Nucleotide ; Receptors, Calcitriol/genetics ; Sex Factors ; Vitamin D/analogs & derivatives ; Vitamin D/blood
    Chemical Substances Lipids ; Receptors, Calcitriol ; Vitamin D (1406-16-2) ; 25-hydroxyvitamin D (A288AR3C9H)
    Language English
    Publishing date 2022-02-23
    Publishing country China
    Document type Journal Article
    ZDB-ID 645083-0
    ISSN 2214-0190 ; 0895-3988
    ISSN (online) 2214-0190
    ISSN 0895-3988
    DOI 10.3967/bes2022.016
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  10. Article ; Online: Hippocampal F3/Contactin plays a role in chronic stress-induced depressive-like effects and the antidepressant actions of vortioxetine in mice.

    Chen, Yan-Mei / Fan, Hua / Huang, Jie / Shi, Tian-Shun / Li, Wei-Yu / Wang, Cheng-Niu / Jiang, Bo / Liu, Jian-Feng

    Biochemical pharmacology

    2022  Volume 202, Page(s) 115097

    Abstract: Depression is a very prevalent psychiatric disorder which threats nearly one in six of the population in this world. To date, the pathogenesis of depression remains elusive and is thought to depend on multiple factors in which chronic stress is critical. ...

    Abstract Depression is a very prevalent psychiatric disorder which threats nearly one in six of the population in this world. To date, the pathogenesis of depression remains elusive and is thought to depend on multiple factors in which chronic stress is critical. Currently, it has been demonstrated that besides monoaminergic dysfunction, depression is accompanied by several other important pathological phenomena such as impaired neurogenesis and decreased brain-derived neurotrophic factor (BDNF)-cAMP response element binding protein (CREB) signaling cascade in the hippocampus. F3/Contactin is a cell-adhesion molecule which has been reported to correlate with hippocampal neurogenesis and BDNF-CREB signaling. Here we assumed that F3/Contactin may be implicated in depression, and various methods including western blotting, immunofluorescence, virus-mediated gene transfer and chronic stress models of depression were adopted together. It was found that both chronic restraint stress (CRS) and chronic social defeat stress (CSDS) significantly decreased the expression of F3/Contactin in the hippocampus. Adeno-associated virus (AAV)-mediated over-expression of hippocampal F3/Contactin notably prevented the CRS-induced and CSDS-induced depressive-like behaviors in mice. Moreover, hippocampal F3/Contactin over-expression also fully reversed the CRS-induced and CSDS-induced dysfunction in the hippocampal BDNF-CREB signaling and neurogenesis of mice. Furthermore, administration of vortioxetine, a multimodal-acting antidepressant, fully ameliorated the inhibitory actions of both CRS and CSDS on the hippocampal F3/Contactin expression. In contrast, AAV-mediated knockdown of hippocampal F3/Contactin significantly abolished the protecting effects of vortioxetine against CRS and CSDS. Collectively, hippocampal F3/Contactin is implicated in depression and could be a novel antidepressant target.
    MeSH term(s) Animals ; Antidepressive Agents/pharmacology ; Antidepressive Agents/therapeutic use ; Brain-Derived Neurotrophic Factor/genetics ; Brain-Derived Neurotrophic Factor/metabolism ; Contactins/metabolism ; Cyclic AMP Response Element-Binding Protein/metabolism ; Depression/drug therapy ; Depression/etiology ; Disease Models, Animal ; Hippocampus ; Humans ; Mice ; Mice, Inbred C57BL ; Stress, Psychological/complications ; Stress, Psychological/metabolism ; Vortioxetine/pharmacology
    Chemical Substances Antidepressive Agents ; Brain-Derived Neurotrophic Factor ; Contactins ; Cyclic AMP Response Element-Binding Protein ; Vortioxetine (3O2K1S3WQV)
    Language English
    Publishing date 2022-05-21
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 208787-x
    ISSN 1873-2968 ; 0006-2952
    ISSN (online) 1873-2968
    ISSN 0006-2952
    DOI 10.1016/j.bcp.2022.115097
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

To top