LIVIVO - The Search Portal for Life Sciences

zur deutschen Oberfläche wechseln
Advanced search

Search results

Result 1 - 10 of total 803

Search options

  1. Article ; Online: Hepatic myxoinflammatory fibroblastic sarcoma: A case report and literature review.

    Shan, Kunkun / Wen, Junye / Ma, Xiaoli / Yu, Hanxiang

    Asian journal of surgery

    2023  Volume 46, Issue 10, Page(s) 4444–4446

    MeSH term(s) Humans ; Fibrosarcoma/diagnostic imaging ; Fibrosarcoma/surgery ; Sarcoma/diagnostic imaging ; Sarcoma/surgery ; Liver/diagnostic imaging
    Language English
    Publishing date 2023-05-03
    Publishing country Netherlands
    Document type Review ; Case Reports ; Letter
    ZDB-ID 1068461-x
    ISSN 0219-3108 ; 1015-9584
    ISSN (online) 0219-3108
    ISSN 1015-9584
    DOI 10.1016/j.asjsur.2023.04.102
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  2. Article ; Online: Construction of Co-ZIF-derived CoS

    Ou, Lian / Yang, Jie / Xu, Li / Zhao, Shan / Xiong, Xiaoli / Xiao, Ting

    Environmental research

    2024  Volume 246, Page(s) 118177

    Abstract: As a neurotoxin, it is necessary to establish a low cost, stable and sensitive method for the quantitative detection of hydrazine. Using Co-ZIF (zeolite imidazole framework) nanorods as precursor, ... ...

    Abstract As a neurotoxin, it is necessary to establish a low cost, stable and sensitive method for the quantitative detection of hydrazine. Using Co-ZIF (zeolite imidazole framework) nanorods as precursor, CoS
    MeSH term(s) Electrochemical Techniques/methods ; Limit of Detection ; Nanotubes ; Carbon/chemistry ; Hydrazines ; Water
    Chemical Substances Carbon (7440-44-0) ; hydrazine (27RFH0GB4R) ; Hydrazines ; Water (059QF0KO0R)
    Language English
    Publishing date 2024-01-10
    Publishing country Netherlands
    Document type Journal Article
    ZDB-ID 205699-9
    ISSN 1096-0953 ; 0013-9351
    ISSN (online) 1096-0953
    ISSN 0013-9351
    DOI 10.1016/j.envres.2024.118177
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  3. Article ; Online: CuCo

    Liu, Yan / Xin, Yuying / Wang, Xin / Zhang, Xianfa / Xu, Yingming / Cheng, Xiaoli / Gao, Shan / Huo, Lihua

    Mikrochimica acta

    2024  Volume 191, Issue 4, Page(s) 218

    Abstract: An electrochemical sensor for detecting ketoprofen was constructed by in-situ grown copper cobaltate ( ... ...

    Abstract An electrochemical sensor for detecting ketoprofen was constructed by in-situ grown copper cobaltate (CuCo
    Language English
    Publishing date 2024-03-26
    Publishing country Austria
    Document type Journal Article
    ZDB-ID 89-9
    ISSN 1436-5073 ; 0026-3672
    ISSN (online) 1436-5073
    ISSN 0026-3672
    DOI 10.1007/s00604-024-06299-z
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  4. Article ; Online: Histone demethylase KDM7A regulates bone homeostasis through balancing osteoblast and osteoclast differentiation.

    Shan, Liying / Yang, Xiaoli / Liao, Xiaoxia / Yang, Zheng / Zhou, Jie / Li, Xiaoxia / Wang, Baoli

    Cell death & disease

    2024  Volume 15, Issue 2, Page(s) 136

    Abstract: Histone methylation plays a crucial role in various cellular processes. We previously reported the in vitro function of histone lysine demethylase 7 A (KDM7A) in osteoblast and adipocyte differentiation. The current study was undertaken to investigate ... ...

    Abstract Histone methylation plays a crucial role in various cellular processes. We previously reported the in vitro function of histone lysine demethylase 7 A (KDM7A) in osteoblast and adipocyte differentiation. The current study was undertaken to investigate the physiological role of KDM7A in bone homeostasis and elucidate the underlying mechanisms. A conditional strategy was employed to delete the Kdm7a gene specifically in osterix-expressing osteoprogenitor cells in mice. The resulting mutant mice exhibited a significant increase in cancellous bone mass, accompanied by an increase in osteoblasts and bone formation, as well as a reduction in osteoclasts, marrow adipocytes and bone resorption. The bone marrow stromal cells (BMSCs) and calvarial pre-osteoblastic cells derived from the mutant mice exhibited enhanced osteogenic differentiation and suppressed adipogenic differentiation. Additionally, osteoclastic precursor cells from the mutant mice exhibited impaired osteoclast differentiation. Co-culturing BMSCs from the mutant mice with wild-type osteoclast precursor cells resulted in the inhibition of osteoclast differentiation. Mechanistic investigation revealed that KDM7A was able to upregulate the expression of fibroblast activation protein α (FAP) and receptor activator of nuclear factor κB ligand (RANKL) in BMSCs through removing repressive di-methylation marks of H3K9 and H3K27 from Fap and Rankl promoters. Moreover, recombinant FAP attenuated the dysregulation of osteoblast and adipocyte differentiation in BMSCs from Kdm7a deficient mice. Finally, Kdm7a deficiency prevented ovariectomy-induced bone loss in mice. This study establish the role of KDM7A in bone homeostasis through its epigenetic regulation of osteoblast and osteoclast differentiation. Consequently, inhibiting KDM7A may prove beneficial in ameliorating osteoporosis. KDM7A suppresses osteoblast differentiation and bone formation through. upregulating FAP expression and inactivating canonical Wnt signaling, and conversely promotes osteoclast differentiation and bone resorption through upregulating RANKL expression. These are based on its epigenetic removal of the repressive H3K9me2 and H3K27me2 marks from Fap and Rankl promoters. As a result, the expression of KDM7A in osteoprogenitor cells tends to negatively modulate bone mass.
    MeSH term(s) Animals ; Female ; Mice ; Bone Resorption/genetics ; Bone Resorption/metabolism ; Cell Differentiation ; Epigenesis, Genetic ; Histone Demethylases/genetics ; Histone Demethylases/metabolism ; Homeostasis ; Osteoblasts/metabolism ; Osteoclasts/metabolism ; Osteogenesis/genetics ; RANK Ligand/genetics ; RANK Ligand/metabolism ; Jumonji Domain-Containing Histone Demethylases/genetics ; Jumonji Domain-Containing Histone Demethylases/metabolism
    Chemical Substances Histone Demethylases (EC 1.14.11.-) ; RANK Ligand ; KDM7 protein, mouse (EC 1.14.11.-) ; Jumonji Domain-Containing Histone Demethylases (EC 1.14.11.-)
    Language English
    Publishing date 2024-02-12
    Publishing country England
    Document type Journal Article
    ZDB-ID 2541626-1
    ISSN 2041-4889 ; 2041-4889
    ISSN (online) 2041-4889
    ISSN 2041-4889
    DOI 10.1038/s41419-024-06521-z
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  5. Article ; Online: Reduction in the activity of VTA/SNc dopaminergic neurons underlies aging-related decline in novelty seeking.

    Shan, Qiang / Tian, Ye / Chen, Hang / Lin, Xiaoli / Tian, Yao

    Communications biology

    2023  Volume 6, Issue 1, Page(s) 1224

    Abstract: Curiosity, or novelty seeking, is a fundamental mechanism motivating animals to explore and exploit environments to improve survival, and is also positively associated with cognitive, intrapersonal and interpersonal well-being in humans. However, ... ...

    Abstract Curiosity, or novelty seeking, is a fundamental mechanism motivating animals to explore and exploit environments to improve survival, and is also positively associated with cognitive, intrapersonal and interpersonal well-being in humans. However, curiosity declines as humans age, and the decline even positively predicts the extent of cognitive decline in Alzheimer's disease patients. Therefore, determining the underlying mechanism, which is currently unknown, is an urgent task for the present aging society that is growing at an unprecedented rate. This study finds that seeking behaviors for both social and inanimate novelties are compromised in aged mice, suggesting that the aging-related decline in curiosity and novelty-seeking is a biological process. This study further identifies an aging-related reduction in the activity (manifesting as a reduction in spontaneous firing) of dopaminergic neurons in the ventral tegmental area (VTA) and substantia nigra pars compacta (SNc). Finally, this study establishes that this reduction in activity causally underlies the aging-related decline in novelty-seeking behaviors. This study potentially provides an interventional strategy for maintaining high curiosity in the aged population, i.e., compensating for the reduced activity of VTA/SNc dopaminergic neurons, enabling the aged population to cope more smoothly with the present growing aging society, physically, cognitively and socioeconomically.
    MeSH term(s) Humans ; Mice ; Animals ; Aged ; Pars Compacta ; Dopaminergic Neurons/physiology ; Exploratory Behavior ; Substantia Nigra ; Ventral Tegmental Area/physiology ; Aging
    Language English
    Publishing date 2023-12-02
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ISSN 2399-3642
    ISSN (online) 2399-3642
    DOI 10.1038/s42003-023-05571-x
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  6. Article ; Online: Reduced Activity of Glutamatergic Neurons in the Prelimbic Medial Prefrontal Cortex Underlies the Inherent Aging-Related Physiological Reduction in Social Dominance.

    Shan, Qiang / Lin, Xiaoli / Yu, Xiaoxuan / Guo, Wenye / Tian, Yao

    The journals of gerontology. Series A, Biological sciences and medical sciences

    2023  Volume 78, Issue 12, Page(s) 2222–2229

    Abstract: Human society is aging, and the percentage of the population of older adults is increasing at an unprecedented rate. It is increasingly appreciated that social behaviors change with aging. One such example is the possible aging-related reduction in ... ...

    Abstract Human society is aging, and the percentage of the population of older adults is increasing at an unprecedented rate. It is increasingly appreciated that social behaviors change with aging. One such example is the possible aging-related reduction in dominance status. This change has been thought to underlie older adults' peculiar vulnerability to fraud, which has become a major challenge in the present aging society. However, whether this change is an inherent physiological process, and, if so, its underlying microscopic physiological mechanism, is not known. This study used groups of mice in a design that minimized effects that could confound any inherent process of dominance and verified that social dominance does inherently reduce with aging. This study further identified an aging-related microscopic functional alteration, that is, a reduction in the activity of glutamatergic pyramidal neurons in the prelimbic medial prefrontal cortex; and established that this reduction in neuronal activity serves as an intrinsic physiological mechanism underlying the macroscopic aging-related reduction in dominance. This study, by exploiting modern neurobiological techniques, sheds light on our understanding of human social behaviors during aging and may help develop strategies to counter related social challenges among the older adults population.
    MeSH term(s) Humans ; Mice ; Animals ; Aged ; Prefrontal Cortex ; Neurons/physiology ; Social Dominance ; Aging
    Language English
    Publishing date 2023-09-14
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 1223643-3
    ISSN 1758-535X ; 1079-5006
    ISSN (online) 1758-535X
    ISSN 1079-5006
    DOI 10.1093/gerona/glad219
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  7. Article ; Online: A sensitive and versatile electrochemical sensor based on hybridization chain reaction and CRISPR/Cas12a system for antibiotic detection.

    Zhang, Xuemei / Zhu, Li / Yang, Li / Liu, Guoyu / Qiu, Shan / Xiong, Xiaoli / Huang, Ke / Xiao, Ting / Zhu, Liping

    Analytica chimica acta

    2024  Volume 1304, Page(s) 342562

    Abstract: A sensitive electrochemical platform was constructed with ... ...

    Abstract A sensitive electrochemical platform was constructed with NH
    MeSH term(s) Anti-Bacterial Agents ; Electrochemical Techniques/methods ; CRISPR-Cas Systems ; Biosensing Techniques/methods ; Nucleic Acid Hybridization
    Chemical Substances Anti-Bacterial Agents
    Language English
    Publishing date 2024-03-30
    Publishing country Netherlands
    Document type Journal Article
    ZDB-ID 1483436-4
    ISSN 1873-4324 ; 0003-2670
    ISSN (online) 1873-4324
    ISSN 0003-2670
    DOI 10.1016/j.aca.2024.342562
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  8. Article ; Online: Stachydrine hydrochloride protects the ischemic heart by ameliorating endoplasmic reticulum stress through a SERCA2a dependent way and maintaining intracellular Ca

    Feng, Minghui / Chen, Yuwen / Chen, Jingzhi / Guo, Wei / Zhao, Pei / Zhang, Chen / Shan, Xiaoli / Chen, Huihua / Xu, Ming / Lu, Rong

    European journal of pharmacology

    2024  Volume 973, Page(s) 176585

    Abstract: This study aimed to explore the effects and mechanism of action of stachydrine hydrochloride (Sta) against myocardial infarction (MI) through sarcoplasmic/endoplasmic reticulum stress-related injury. The targets of Sta against MI were screened using ... ...

    Abstract This study aimed to explore the effects and mechanism of action of stachydrine hydrochloride (Sta) against myocardial infarction (MI) through sarcoplasmic/endoplasmic reticulum stress-related injury. The targets of Sta against MI were screened using network pharmacology. C57BL/6 J mice after MI were treated with saline, Sta (6 or 12 mg kg
    Language English
    Publishing date 2024-04-16
    Publishing country Netherlands
    Document type Journal Article
    ZDB-ID 80121-5
    ISSN 1879-0712 ; 0014-2999
    ISSN (online) 1879-0712
    ISSN 0014-2999
    DOI 10.1016/j.ejphar.2024.176585
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  9. Article ; Online: Microplastic Accumulation in Agricultural Soils with Different Mulching Histories in Xinjiang, China

    Shan Zhang / Anming Bao / Xiaoli Lin / Gongxu Jia / Qingling Zhang

    Sustainability, Vol 15, Iss 5438, p

    2023  Volume 5438

    Abstract: Microplastics (MPs) in soils have been widely studied, yet very little is known about their distribution in agricultural soils and the impact of mulching history. In this study, soil samples were taken across 3 soil layers of 60 sites with varying years ... ...

    Abstract Microplastics (MPs) in soils have been widely studied, yet very little is known about their distribution in agricultural soils and the impact of mulching history. In this study, soil samples were taken across 3 soil layers of 60 sites with varying years of mulching history (<5 years, 5–10 years, 10–20 years and >20 years) in agricultural film-mulched cotton fields of Xinjiang, China. Microplastics were obtained from the soils using oil separation combined with density separation. Stereomicroscopy and Fourier transform infrared spectroscopy (FTIR) were used for identification. The average microplastic abundance of the sites with different years of mulching history are 538, 1484, 5812 and 9708 pieces/kg, respectively. The microplastics with sizes 1000–5000 and 200–500 μm are dominant in soils with less than 10 years and over 10 years of continuous mulching history, respectively. The results show that the abundance of microplastics increases and the size of microplastics decreases gradually as the number of years of mulching history increases. In addition, the best polynomial fitting curves were found between microplastic abundance (y) and mulching years (x) in different soil layers, and the relationship in the topsoil layer can be fitted as the following equation: y = 20.6x 2 = 41.39x + 198.65 ( p < 0.01, R 2 = 0.62). The results indicate that residual agricultural mulching film is the dominating source of microplastics in cotton fields. This study provides rationale for further research on microplastics prediction in agricultural film-mulched fields.
    Keywords cotton field ; mulching ; microplastic pollution ; agriculture ; soil ; distribution ; Environmental effects of industries and plants ; TD194-195 ; Renewable energy sources ; TJ807-830 ; Environmental sciences ; GE1-350
    Subject code 333
    Language English
    Publishing date 2023-03-01T00:00:00Z
    Publisher MDPI AG
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

    More links

    Kategorien

  10. Article ; Online: Reduction in the activity of VTA/SNc dopaminergic neurons underlies aging-related decline in novelty seeking

    Qiang Shan / Ye Tian / Hang Chen / Xiaoli Lin / Yao Tian

    Communications Biology, Vol 6, Iss 1, Pp 1-

    2023  Volume 16

    Abstract: Abstract Curiosity, or novelty seeking, is a fundamental mechanism motivating animals to explore and exploit environments to improve survival, and is also positively associated with cognitive, intrapersonal and interpersonal well-being in humans. However, ...

    Abstract Abstract Curiosity, or novelty seeking, is a fundamental mechanism motivating animals to explore and exploit environments to improve survival, and is also positively associated with cognitive, intrapersonal and interpersonal well-being in humans. However, curiosity declines as humans age, and the decline even positively predicts the extent of cognitive decline in Alzheimer’s disease patients. Therefore, determining the underlying mechanism, which is currently unknown, is an urgent task for the present aging society that is growing at an unprecedented rate. This study finds that seeking behaviors for both social and inanimate novelties are compromised in aged mice, suggesting that the aging-related decline in curiosity and novelty-seeking is a biological process. This study further identifies an aging-related reduction in the activity (manifesting as a reduction in spontaneous firing) of dopaminergic neurons in the ventral tegmental area (VTA) and substantia nigra pars compacta (SNc). Finally, this study establishes that this reduction in activity causally underlies the aging-related decline in novelty-seeking behaviors. This study potentially provides an interventional strategy for maintaining high curiosity in the aged population, i.e., compensating for the reduced activity of VTA/SNc dopaminergic neurons, enabling the aged population to cope more smoothly with the present growing aging society, physically, cognitively and socioeconomically.
    Keywords Biology (General) ; QH301-705.5
    Subject code 616
    Language English
    Publishing date 2023-12-01T00:00:00Z
    Publisher Nature Portfolio
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

    More links

    Kategorien

To top