LIVIVO - The Search Portal for Life Sciences

zur deutschen Oberfläche wechseln
Advanced search

Your last searches

  1. AU="Chen, Fen Fen"
  2. AU="Schafer, Jason J"

Search results

Result 1 - 10 of total 39

Search options

  1. Article ; Online: Comparison of microstructure, mechanical property, and degradation rate of Mg-1Li-1Ca and Mg-4Li-1Ca alloys.

    Long, Li-Xin / Chen, Fen-Fen / Cui, Lan-Yue / Wei, Ze-Song / Wang, Hai-Tao / Zeng, Rong-Chang / Zheng, Yu-Feng

    Bioactive materials

    2023  Volume 26, Page(s) 279–291

    Abstract: Mg-1 wt.% Li-1 wt.% Ca (LX11) and Mg-4 wt.% Li-1 wt.% Ca (LX41) alloys share the same hexagonal closed-packed crystalline structure. However, the differences in microstructure, mechanical properties, and degradation rates between the two alloys are not ... ...

    Abstract Mg-1 wt.% Li-1 wt.% Ca (LX11) and Mg-4 wt.% Li-1 wt.% Ca (LX41) alloys share the same hexagonal closed-packed crystalline structure. However, the differences in microstructure, mechanical properties, and degradation rates between the two alloys are not well understood. Hereby, the above three aspects of LX11 and LX41 alloys were studied via optical microscopy, tensile tests, and electrochemical polarization and electrochemical impedance spectroscopy, together with hydrogen evolution. The concentration of the released Mg
    Language English
    Publishing date 2023-03-14
    Publishing country China
    Document type Journal Article
    ISSN 2452-199X
    ISSN (online) 2452-199X
    DOI 10.1016/j.bioactmat.2023.02.030
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  2. Article ; Online: Clinical outcomes and prognostic risk factors of Langerhans cell histiocytosis in children: Results from the BCH-LCH 2014 protocol study.

    Cui, Lei / Wang, Chan-Juan / Lian, Hong-Yun / Zhang, Li / Ma, Hong-Hao / Wang, Dong / Chen, Fen-Fen / Zhang, Qing / Yang, Ying / Wei, Ang / Huang, Xiao-Tong / Zhu, Ting / Wang, Tian-You / Li, Zhi-Gang / Zhang, Rui

    American journal of hematology

    2023  Volume 98, Issue 4, Page(s) 598–607

    Abstract: Langerhans cell histiocytosis (LCH) is a rare myeloid neoplasm mainly affecting young children. This study aimed to evaluate the outcomes of 449 pediatric patients enrolled in the BCH-LCH 2014 study. 52.6% of patients were classified with single-system ( ... ...

    Abstract Langerhans cell histiocytosis (LCH) is a rare myeloid neoplasm mainly affecting young children. This study aimed to evaluate the outcomes of 449 pediatric patients enrolled in the BCH-LCH 2014 study. 52.6% of patients were classified with single-system (SS) LCH, 28.1% with multisystem (MS) risk organ negative (RO-) LCH, and 19.4% with MS RO+ LCH. Three hundred ninety-six patients (88.2%) were initially treated with first-line therapy based on the vindesine-prednisone combination. One hundred thirty-nine patients who lacked a response to initial treatment were shifted to second-line therapy, 72 to intensive treatment Arm S1 (a combination of cytarabine, cladribine, vindesine, and dexamethasone), and 67 to Arm S2 (without cladribine). The 5-year overall survival (OS), progression-free survival (PFS), and relapse rates were 98.2% (median: 97.6 months), 54.6% (median: 58.3 months), and 29.9%, respectively. MS RO+ patients had the worst prognosis among the three clinical subtypes. For the patients initially treated with first-line therapy, the 5-year OS, PFS, and relapse rates were 99.2%, 54.5%, and 29.3%, respectively. Patients in Arm S1 had a significantly better prognosis than patients in Arm S2 (5-year PFS: 69.2% vs. 46.5%, p = .042; relapse rate: 23.4% vs. 44.2%, p = .031). Multivariate analysis revealed that early treatment response, the involvement of RO, skin, and oral mucosa, as well as laboratory parameters, including CRP and γ-GT, were independent risk factors for the PFS of LCH. Thus, the prognosis of LCH in children has been improved significantly with stratified chemotherapy, and progression and relapse remained the challenges, especially for RO+ patients.
    MeSH term(s) Child ; Humans ; Child, Preschool ; Prognosis ; Treatment Outcome ; Cladribine/therapeutic use ; Vindesine/therapeutic use ; Risk Factors ; Histiocytosis, Langerhans-Cell/therapy ; Recurrence ; Retrospective Studies
    Chemical Substances Cladribine (47M74X9YT5) ; Vindesine (RSA8KO39WH)
    Language English
    Publishing date 2023-01-09
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 196767-8
    ISSN 1096-8652 ; 0361-8609
    ISSN (online) 1096-8652
    ISSN 0361-8609
    DOI 10.1002/ajh.26829
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  3. Article: The potential and limitation of targeted chromosomal breakpoint sequencing for the

    Hung, Ming-Szu / Lin, Yu-Ching / Chen, Fen-Fen / Jiang, Yuan-Yuan / Fang, Yu-Hung / Lu, Ming-Shian / Lin, Chin-Kuo / Yang, Tsung-Ming / Lung, Jrhau / Chen, Chih-Cheng / Lee, Kuan-Der / Tsai, Ying-Huang

    American journal of cancer research

    2022  Volume 12, Issue 5, Page(s) 2376–2386

    Abstract: ... ...

    Abstract ROS1
    Language English
    Publishing date 2022-05-15
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2589522-9
    ISSN 2156-6976
    ISSN 2156-6976
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  4. Article ; Online: Lipid Droplets in Lung Cancers Are Crucial for the Cell Growth and Starvation Survival.

    Lung, Jrhau / Hung, Ming-Szu / Wang, Ting-Yao / Chen, Kuan-Liang / Luo, Chi-Wen / Jiang, Yuan-Yuan / Wu, Shin-Yi / Lee, Li-Wen / Lin, Paul-Yann / Chen, Fen-Fen / Liao, Hui-Fen / Lin, Yu-Ching

    International journal of molecular sciences

    2022  Volume 23, Issue 20

    Abstract: For rapid and unlimited cell growth and proliferation, cancer cells require large quantities of nutrients. Many metabolic pathways and nutrient uptake systems are frequently reprogrammed and upregulated to meet the demand from cancer cells, including the ...

    Abstract For rapid and unlimited cell growth and proliferation, cancer cells require large quantities of nutrients. Many metabolic pathways and nutrient uptake systems are frequently reprogrammed and upregulated to meet the demand from cancer cells, including the demand for lipids. The lipids for most adult normal cells are mainly acquired from the circulatory system. Whether different cancer cells adopt identical mechanisms to ensure sufficient lipid supply, and whether the lipid demand and supply meet each other, remains unclear, and was investigated in lung cancer cells. Results showed that, despite frequent upregulation in de novo lipogenesis and the lipid transporter system, different lung cancer cells adopt different proteins to acquire sufficient lipids, and the lipid supply frequently exceeds the demand, as significant amounts of lipids stored in the lipid droplets could be found within lung cancer cells. Lipid droplet surface protein, PLIN3, was found frequently overexpressed since the early stage in lung cancer tissues. Although the expression is not significantly associated with a specific gender, age, histology type, disease stage, and smoking habit, the frequently elevated expression of PLIN3 protein indicates the importance of lipid droplets for lung cancer. These lipid droplets are not only for nutrient storage, but are also crucial for tumor growth and proliferation, as well as survival in starvation. These results suggest that manipulation of lipid droplet formation or TG storage in lung cancer cells could potentially decrease the progression of lung cancer. Further exploration of lipid biology in lung cancer could help design novel treatment strategies.
    MeSH term(s) Adult ; Humans ; Lipid Droplets/metabolism ; Perilipin-3/metabolism ; Lipid Metabolism ; Cell Proliferation ; Membrane Proteins/metabolism ; Starvation/metabolism ; Lung Neoplasms/metabolism ; Lipids/physiology
    Chemical Substances Perilipin-3 ; Membrane Proteins ; Lipids
    Language English
    Publishing date 2022-10-19
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2019364-6
    ISSN 1422-0067 ; 1422-0067 ; 1661-6596
    ISSN (online) 1422-0067
    ISSN 1422-0067 ; 1661-6596
    DOI 10.3390/ijms232012533
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  5. Article ; Online: Knock-down Sox5 suppresses porcine adipogenesis through BMP R-Smads signal pathway.

    Peng, Ying / Shi, Xin-E / Huang, Kui-Long / Yao, Xiang-Ping / Chen, Fen-Fen / Li, Xiao / Yang, Gong-She

    Biochemical and biophysical research communications

    2020  Volume 527, Issue 2, Page(s) 574–580

    Abstract: Adipogenesis, a differentiation process that transitions preadipocytes to adipocytes, is key to understanding the biology of fat accumulation and obesity. During this process, there many crucial transcription factors, such as PPARγ and the C/EBP family. ... ...

    Abstract Adipogenesis, a differentiation process that transitions preadipocytes to adipocytes, is key to understanding the biology of fat accumulation and obesity. During this process, there many crucial transcription factors, such as PPARγ and the C/EBP family. Here we show a transcription factor in preadipocytes --- Sox5, that has a function in porcine adipogenesis. In our porcine subcutaneous-derived preadipocyte differentiation model, we found Sox5 expression displayed a significant upregulation after initial induction and decreased afterwards, which resembles the PPARγ expression pattern. siRNA knockdown of Sox5 in porcine preadipocytes significantly promoted cell growth and accelerated cell cycle progression. After inducing differentiation, knockdown of Sox5 notably down-regulated the expression of adipogenic marker genes: PPARγ, aP2, FAS and impaired lipid accumulation. Mechanistically, the deletion of Sox5 down-regulated the BMP R-Smads signal pathway, a crucial signal pathway for controlling preadipocyte fate commitment and adipogenesis. After using BMP4 recombinant protein to activate the BMP R-Smads signal, Sox5 function was partially rescued. In conclusion, our findings uncovered a function of Sox5 in porcine adipogenesis and reveal an interaction between Sox5 and BMP signaling.
    MeSH term(s) Adipogenesis ; Animals ; Bone Morphogenetic Proteins/genetics ; Bone Morphogenetic Proteins/metabolism ; Cells, Cultured ; Down-Regulation ; RNA Interference ; SOXD Transcription Factors/genetics ; SOXD Transcription Factors/metabolism ; Signal Transduction ; Smad Proteins/genetics ; Smad Proteins/metabolism ; Swine/genetics ; Swine/physiology ; Up-Regulation
    Chemical Substances Bone Morphogenetic Proteins ; SOXD Transcription Factors ; Smad Proteins
    Language English
    Publishing date 2020-05-15
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 205723-2
    ISSN 1090-2104 ; 0006-291X ; 0006-291X
    ISSN (online) 1090-2104 ; 0006-291X
    ISSN 0006-291X
    DOI 10.1016/j.bbrc.2020.04.125
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  6. Article: Knock-down Sox5 suppresses porcine adipogenesis through BMP R-Smads signal pathway

    Peng, Ying / Shi, Xin-e / Huang, Kui-long / Yao, Xiang-ping / Chen, Fen-fen / Li, Xiao / Yang, Gong-she

    Biochemical and biophysical research communications. 2020 June 25, v. 527, no. 2

    2020  

    Abstract: Adipogenesis, a differentiation process that transitions preadipocytes to adipocytes, is key to understanding the biology of fat accumulation and obesity. During this process, there many crucial transcription factors, such as PPARγ and the C/EBP family. ... ...

    Abstract Adipogenesis, a differentiation process that transitions preadipocytes to adipocytes, is key to understanding the biology of fat accumulation and obesity. During this process, there many crucial transcription factors, such as PPARγ and the C/EBP family. Here we show a transcription factor in preadipocytes --- Sox5, that has a function in porcine adipogenesis. In our porcine subcutaneous-derived preadipocyte differentiation model, we found Sox5 expression displayed a significant upregulation after initial induction and decreased afterwards, which resembles the PPARγ expression pattern. siRNA knockdown of Sox5 in porcine preadipocytes significantly promoted cell growth and accelerated cell cycle progression. After inducing differentiation, knockdown of Sox5 notably down-regulated the expression of adipogenic marker genes: PPARγ, aP2, FAS and impaired lipid accumulation. Mechanistically, the deletion of Sox5 down-regulated the BMP R-Smads signal pathway, a crucial signal pathway for controlling preadipocyte fate commitment and adipogenesis. After using BMP4 recombinant protein to activate the BMP R-Smads signal, Sox5 function was partially rescued. In conclusion, our findings uncovered a function of Sox5 in porcine adipogenesis and reveal an interaction between Sox5 and BMP signaling.
    Keywords adipocytes ; adipogenesis ; cell cycle ; cell growth ; lipids ; models ; obesity ; recombinant proteins ; research ; signal transduction ; swine
    Language English
    Dates of publication 2020-0625
    Size p. 574-580.
    Publishing place Elsevier Inc.
    Document type Article
    Note NAL-AP-2-clean
    ZDB-ID 205723-2
    ISSN 0006-291X ; 0006-291X
    ISSN (online) 0006-291X
    ISSN 0006-291X
    DOI 10.1016/j.bbrc.2020.04.125
    Database NAL-Catalogue (AGRICOLA)

    More links

    Kategorien

  7. Article: Differences between porcine longissimus thoracis and semitendinosus intramuscular fat content and the regulation of their preadipocytes during adipogenic differentiation

    Chen, Fen-Fen / Ying-Qian Wang / Guo-Rong Tang / Shu-Ge Liu / Rui Cai / Yun Gao / Yun-Mei Sun / Gong-She Yang / Wei-Jun Pang

    Meat science. 2019 Jan., v. 147

    2019  

    Abstract: Intramuscular fat (IMF) plays an important role in pork quality. However, differences in the adipogenic regulation of IMF content between pig longissimus thoracis (LT) and semitendinosus (ST) remain unclear. Here, we found that IMF content of 180-day-old ...

    Abstract Intramuscular fat (IMF) plays an important role in pork quality. However, differences in the adipogenic regulation of IMF content between pig longissimus thoracis (LT) and semitendinosus (ST) remain unclear. Here, we found that IMF content of 180-day-old pig LT was greater than that of pig ST. Furthermore, lipid accumulation was earlier and greater in LT intramuscular preadipocytes (L-IMA) than in ST intramuscular preadipocytes (S-IMA) during differentiation. Interestingly, glucose consumption was lower in L-IMA than in S-IMA. Moreover, monounsaturated fatty acid content was greater in L-IMA than in S-IMA, whereas polyunsaturated fatty acid content was lower. Levels of the expression of key adipogenic genes were higher in L-IMA than S-IMA. Compared with S-IMA, adipogenic signals were more activated in L-IMA after adipogenic induction. In conclusion, IMF deposition differences between pig LT and ST were due to different glucose consumption, fatty acid composition, expression of key adipogenic genes and level of activating adipogenic signals between S-IMA and L-IMA during adipogenesis.
    Keywords adipogenesis ; fatty acid composition ; genes ; glucose ; intramuscular fat ; longissimus muscle ; monounsaturated fatty acids ; polyunsaturated fatty acids ; pork quality ; swine
    Language English
    Dates of publication 2019-01
    Size p. 116-126.
    Publishing place Elsevier Ltd
    Document type Article
    ZDB-ID 753319-6
    ISSN 1873-4138 ; 0309-1740
    ISSN (online) 1873-4138
    ISSN 0309-1740
    DOI 10.1016/j.meatsci.2018.09.002
    Database NAL-Catalogue (AGRICOLA)

    More links

    Kategorien

  8. Article: [Regulation of VPS28 gene knockdown on the milk fat synthesis in Chinese Holstein dairy].

    Liu, Li Li / Guo, Ai Wei / Wu, Pei Fu / Chen, Fen Fen / Yang, Ya Jin / Zhang, Qin

    Yi chuan = Hereditas

    2018  Volume 40, Issue 12, Page(s) 1092–1100

    Abstract: In a previous genome-wide association study on milk production traits in Chinese Holstein population, we discovered VPS28 gene was highly expressed in mammary gland tissue. Further, a -58C>T mutantion at the 5°-UTR of the gene was significantly ... ...

    Abstract In a previous genome-wide association study on milk production traits in Chinese Holstein population, we discovered VPS28 gene was highly expressed in mammary gland tissue. Further, a -58C>T mutantion at the 5°-UTR of the gene was significantly associated with milk fat content traits. However, its regulation on milk fat content is still uncertain. In this study, we explored the effect of this -58C>T mutation on VPS28, and found that it could significantly reduce promoter activity of VPS28 gene. To identify the potential function of this SNP, we performed RNAi experiments to knockdown VPS28 gene in BMECs and examined the general effects of VPS28 knockdown on BMECs. The results showed that VPS28 knockdown could decrease the mRNA expression of genes in ubiquitination-lysosome and ubiquitination- proteasome pathways, increase the mRNA expression of genes in milk fat synthesis pathway and promote triglyceride synthesis in BMECs. Our data indicate that VPS28 gene could regulate milk fat synthesis pathway; and promote triglyceride synthesis in BMECs. Our data indicate that VPS28 gene could regulate milk fat synthesis through modulating the ubiquitination-lysosome and ubiquitination-proteasome systems. Our results demonstrate the molecular mechanism of VPS28 on regulation of milk synthesis in dairy cattle through the ubiquitination signaling pathway, thereby supporting a relationship between milk fat synthesis and ubiquitination and laying the molecular foundation in breeding of dairy cattle in the future.
    MeSH term(s) Animals ; Breeding ; Cattle/genetics ; Endosomal Sorting Complexes Required for Transport/genetics ; Gene Knockdown Techniques ; Milk/chemistry ; Polymorphism, Single Nucleotide ; RNA Interference
    Chemical Substances Endosomal Sorting Complexes Required for Transport
    Language Chinese
    Publishing date 2018-12-14
    Publishing country China
    Document type Journal Article
    ISSN 0253-9772
    ISSN 0253-9772
    DOI 10.16288/j.yczz.18-134
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  9. Article ; Online: Impact of putamen stroke on task context updating: Evidence from P300 brain waves.

    Hsu, Li-Chuan / Lo, Sui-Foon / Lin, Chia-Yao / Chen, Fen-Fen / Lo, Yu-Chien / Chou, Li-Wei / Kuo, Chih-Lan / Tien, Yi-Min

    Journal of clinical neuroscience : official journal of the Neurosurgical Society of Australasia

    2018  Volume 55, Page(s) 45–51

    Abstract: According to the context updating theory, the oddball P300 component indexes brain activities underlying revision of the mental representation induced by incoming stimuli. It involves an attention-driven comparison process that evaluates the ... ...

    Abstract According to the context updating theory, the oddball P300 component indexes brain activities underlying revision of the mental representation induced by incoming stimuli. It involves an attention-driven comparison process that evaluates the representation of the previous event in working memory. Delayed latencies have been reported for various types of stroke such as unilateral thalamic stroke. We investigated memory updating effects in patients with putamen stroke. Two groups of patients with putamen and thalamic stroke were recruited along with two control groups of young and old healthy participants. Auditory and visual P300 were elicited respectively in a two-stimulus oddball paradigm. The auditory P300 peak latencies were significantly longer in patients with a putamen lesion than in the aged and young control groups and the same pattern was found in the thalamus-lesioned patient. The delayed auditory P300 component in both patient groups but neither control group suggests impairment of memory updating in patients with putamen stroke comparable with thalamic stroke. Our study illustrates the important role of subcortical structures subserved in context updating.
    MeSH term(s) Adult ; Brain Waves/physiology ; Electroencephalography ; Event-Related Potentials, P300/physiology ; Evoked Potentials, Auditory/physiology ; Evoked Potentials, Visual/physiology ; Female ; Humans ; Male ; Memory Disorders/etiology ; Memory Disorders/physiopathology ; Putamen/physiopathology ; Stroke/complications ; Stroke/physiopathology
    Language English
    Publishing date 2018-08-01
    Publishing country Scotland
    Document type Journal Article
    ZDB-ID 1193674-5
    ISSN 1532-2653 ; 0967-5868
    ISSN (online) 1532-2653
    ISSN 0967-5868
    DOI 10.1016/j.jocn.2018.07.004
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  10. Article: [The regulation of ubiquitination in milk fat synthesis in bovine].

    Liu, Li Li / Guo, Ai Wei / Li, Qingqing / Wu, Pei Fu / Yang, Yajin / Chen, Fen Fen / Li, Su Hua / Guo, Pan Jiang / Zhang, Qin

    Yi chuan = Hereditas

    2020  Volume 42, Issue 6, Page(s) 548–555

    Abstract: Ubiquitination signaling is the main pathway of protein degradation in eukaryotic cells. Ubiquitin-proteasome system degrades the ubiquitinated cytoplasmic proteins and lysosome pathway mainly degrades the ubiquitinated membrane proteins. Previous ... ...

    Abstract Ubiquitination signaling is the main pathway of protein degradation in eukaryotic cells. Ubiquitin-proteasome system degrades the ubiquitinated cytoplasmic proteins and lysosome pathway mainly degrades the ubiquitinated membrane proteins. Previous studies have shown that ubiquitination signaling plays a critical role in fatty acids synthesis. In the process of fatty acids import, disruption of ubiquitination could prevent the degradation of fatty acid transport proteins, thereby promoting fatty acids import and milk fat synthesis in bovine primary mammary epithelial cells. In this review, we summarize the signal transduction and regulation mechanism of ubiquitination signaling in milk fat synthesis, which may provide references and new ideas for future research on milk fat traits in dairy cows.
    MeSH term(s) Animals ; Cattle ; Epithelial Cells ; Fatty Acids/metabolism ; Female ; Mammary Glands, Animal ; Milk/metabolism ; Ubiquitination
    Chemical Substances Fatty Acids
    Language Chinese
    Publishing date 2020-07-18
    Publishing country China
    Document type Journal Article ; Review
    ISSN 0253-9772
    ISSN 0253-9772
    DOI 10.16288/j.yczz.20-037
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

To top