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  1. Article ; Online: Endosomal recycling and dopamine neurotransmission: Exploring the links between the retromer and Parkinson's disease.

    Gock, Nathan / Follett, Jordan / Rintoul, Gordon L / Beischlag, Timothy V / Lee, Frank J S

    Synapse (New York, N.Y.)

    2022  Volume 76, Issue 3-4, Page(s) e22224

    Abstract: The retromer complex is an evolutionarily conserved protein complex involved in the endosomal recycling of various cargo proteins. It is ubiquitously expressed in all tissue and is found in both invertebrate as well as mammalian nervous systems, where it ...

    Abstract The retromer complex is an evolutionarily conserved protein complex involved in the endosomal recycling of various cargo proteins. It is ubiquitously expressed in all tissue and is found in both invertebrate as well as mammalian nervous systems, where it recycles various synaptic membrane proteins including the dopamine transporter and dopamine D1 receptor, two proteins implicated in dopamine homeostasis and neurotransmission. The involvement of the retromer complex in dopamine neurobiology is further underscored by its links to Parkinson's disease, a neurodegenerative disorder of the dopamine system. In this article, the existing literature linking the retromer complex to synaptic function and dopamine homeostasis is reviewed. Additional possible links are highlighted by exploring the retromer and other Parkinson's disease-associated proteins and possible relationships to synaptic function and dopamine transmission.
    MeSH term(s) Animals ; Dopamine/metabolism ; Endosomes/metabolism ; Mammals ; Parkinson Disease/metabolism ; Protein Transport
    Chemical Substances Dopamine (VTD58H1Z2X)
    Language English
    Publishing date 2022-02-14
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't ; Review
    ZDB-ID 639061-4
    ISSN 1098-2396 ; 0885-8276 ; 0887-4476
    ISSN (online) 1098-2396
    ISSN 0885-8276 ; 0887-4476
    DOI 10.1002/syn.22224
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Book ; Thesis: Mind your heart

    Donker, Franciscus Johannus Stephanus

    risk factor education in secondary prevention of coronary heart disease

    1999  

    Author's details door Franciscus Johannus Stephanus Donker
    Language English
    Size 168 S.
    Publishing country Netherlands
    Document type Book ; Thesis
    Thesis / German Habilitation thesis Nijmegen, Kath. Univ., Diss., 1999
    Note Zsfassung in niederländ. Sprache
    HBZ-ID HT010826226
    ISBN 90-901-2757-7 ; 978-90-901-2757-6
    Database Catalogue ZB MED Medicine, Health

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  3. Article ; Online: Neuroprotective effects of extracellular DJ-1 on reperfusion injury in SH-SY5Y cells.

    Han, Jay / Luk, Beryl / Lee, Frank J S

    Synapse (New York, N.Y.)

    2017  Volume 71, Issue 5

    Abstract: Using an in vitro model of ischemic stroke we treated differentiated SH-SY5Y cells to oxygen-glucose deprivation (OGD) followed by a reperfusion period where normal growth conditions were restored. Cells undergoing OGD exhibited significant cell death as ...

    Abstract Using an in vitro model of ischemic stroke we treated differentiated SH-SY5Y cells to oxygen-glucose deprivation (OGD) followed by a reperfusion period where normal growth conditions were restored. Cells undergoing OGD exhibited significant cell death as measure by propidium iodide staining. However, cells treated with exogenous extracellular DJ-1 during reperfusion exhibited significant rescue from OGD-induced cell death.
    Language English
    Publishing date 2017-05
    Publishing country United States
    Document type Journal Article
    ZDB-ID 639061-4
    ISSN 1098-2396 ; 0885-8276 ; 0887-4476
    ISSN (online) 1098-2396
    ISSN 0885-8276 ; 0887-4476
    DOI 10.1002/syn.21963
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: A Physical Interaction between the Dopamine Transporter and DJ-1 Facilitates Increased Dopamine Reuptake.

    Beryl Luk / Mohinuddin Mohammed / Fang Liu / Frank J S Lee

    PLoS ONE, Vol 10, Iss 8, p e

    2015  Volume 0136641

    Abstract: The regulation of the dopamine transporter (DAT) impacts extracellular dopamine levels after release from dopaminergic neurons. Furthermore, a variety of protein partners have been identified that can interact with and modulate DAT function. In this ... ...

    Abstract The regulation of the dopamine transporter (DAT) impacts extracellular dopamine levels after release from dopaminergic neurons. Furthermore, a variety of protein partners have been identified that can interact with and modulate DAT function. In this study we show that DJ-1 can potentially modulate DAT function. Co-expression of DAT and DJ-1 in HEK-293T cells leads to an increase in [3H] dopamine uptake that does not appear to be mediated by increased total DAT expression but rather through an increase in DAT cell surface localization. In addition, through a series of GST affinity purifications and co-immunoprecipitations, we provide evidence that the DAT can be found in a complex with DJ-1, which involve distinct regions within both DAT and DJ-1. Using in vitro binding experiments we also show that this complex can be formed in part by a direct interaction between DAT and DJ-1. Co-expression of a mini-gene that can disrupt the DAT/DJ-1 complex appears to block the increase in [3H] dopamine uptake by DJ-1. Mutations in DJ-1 have been linked to familial forms of Parkinson's disease, yet the normal physiological function of DJ-1 remains unclear. Our study suggests that DJ-1 may also play a role in regulating dopamine levels by modifying DAT activity.
    Keywords Medicine ; R ; Science ; Q
    Subject code 500
    Language English
    Publishing date 2015-01-01T00:00:00Z
    Publisher Public Library of Science (PLoS)
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  5. Article ; Online: Learning to balance on a slackline: Development of coordinated multi-joint synergies.

    Mildren, R L / Zaback, M / Adkin, A L / Bent, L R / Frank, J S

    Scandinavian journal of medicine & science in sports

    2018  Volume 28, Issue 9, Page(s) 1996–2008

    Abstract: Previous research has investigated synergies involved in locomotion and balance reactions; however, there is limited insight into the emergence of skilled balance control with practice of challenging tasks. We explored motor learning of tandem and single ...

    Abstract Previous research has investigated synergies involved in locomotion and balance reactions; however, there is limited insight into the emergence of skilled balance control with practice of challenging tasks. We explored motor learning of tandem and single leg stance on an unstable surface-a slackline. Balance was tested in 10 naïve healthy adults at four time points: baseline, after one slackline practice session, after 1 week of practice, and 1 week following the final practice session. We recorded kinematics of the upper and lower arms bilaterally, trunk, and thigh and foot unilaterally while participants balanced in tandem and single leg stance on a slackline and narrow rigid beam (transfer task). When participants first attempted to stand on the slackline, they exhibited fast and frequent movements across all joints with actions along the frontal plane (particularly the hip) and fell after a short period (~3 seconds). Performance improved rapidly (fewer falls), and this was accompanied by dampened trunk and foot oscillations and the development of coordinated movement patterns with a progressive emphasis on more distal upper body segments. Continuous relative phase angles between joint pairs began to cluster around either 0° (indicating in-phase movement) or 180° (indicating anti-phase movement). Participants also began to demonstrate coordinated upper body synergies and performance improvements (fewer falls) on the transfer task, while a control group (n = 10) did not exhibit similar synergies or performance improvements. Our findings describe the emergence of coordinated movement synergies involving the upper body as healthy adults learn a challenging balance task.
    MeSH term(s) Arm ; Biomechanical Phenomena ; Female ; Foot ; Humans ; Learning ; Male ; Motor Skills ; Postural Balance ; Thigh ; Torso ; Young Adult
    Language English
    Publishing date 2018-05-22
    Publishing country Denmark
    Document type Journal Article
    ZDB-ID 1077418-x
    ISSN 1600-0838 ; 0905-7188
    ISSN (online) 1600-0838
    ISSN 0905-7188
    DOI 10.1111/sms.13208
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: A Physical Interaction between the Dopamine Transporter and DJ-1 Facilitates Increased Dopamine Reuptake.

    Luk, Beryl / Mohammed, Mohinuddin / Liu, Fang / Lee, Frank J S

    PloS one

    2015  Volume 10, Issue 8, Page(s) e0136641

    Abstract: The regulation of the dopamine transporter (DAT) impacts extracellular dopamine levels after release from dopaminergic neurons. Furthermore, a variety of protein partners have been identified that can interact with and modulate DAT function. In this ... ...

    Abstract The regulation of the dopamine transporter (DAT) impacts extracellular dopamine levels after release from dopaminergic neurons. Furthermore, a variety of protein partners have been identified that can interact with and modulate DAT function. In this study we show that DJ-1 can potentially modulate DAT function. Co-expression of DAT and DJ-1 in HEK-293T cells leads to an increase in [3H] dopamine uptake that does not appear to be mediated by increased total DAT expression but rather through an increase in DAT cell surface localization. In addition, through a series of GST affinity purifications and co-immunoprecipitations, we provide evidence that the DAT can be found in a complex with DJ-1, which involve distinct regions within both DAT and DJ-1. Using in vitro binding experiments we also show that this complex can be formed in part by a direct interaction between DAT and DJ-1. Co-expression of a mini-gene that can disrupt the DAT/DJ-1 complex appears to block the increase in [3H] dopamine uptake by DJ-1. Mutations in DJ-1 have been linked to familial forms of Parkinson's disease, yet the normal physiological function of DJ-1 remains unclear. Our study suggests that DJ-1 may also play a role in regulating dopamine levels by modifying DAT activity.
    MeSH term(s) Cell Membrane/metabolism ; Dopamine/genetics ; Dopamine/metabolism ; Dopamine Plasma Membrane Transport Proteins/genetics ; Dopamine Plasma Membrane Transport Proteins/metabolism ; Dopaminergic Neurons/metabolism ; Gene Expression Regulation ; HEK293 Cells ; Humans ; Immunoprecipitation ; Intracellular Signaling Peptides and Proteins/genetics ; Intracellular Signaling Peptides and Proteins/metabolism ; Mutation ; Oncogene Proteins/genetics ; Oncogene Proteins/metabolism ; Parkinson Disease/genetics ; Parkinson Disease/metabolism ; Parkinson Disease/pathology ; Protein Binding ; Protein Deglycase DJ-1
    Chemical Substances Dopamine Plasma Membrane Transport Proteins ; Intracellular Signaling Peptides and Proteins ; Oncogene Proteins ; PARK7 protein, human (EC 3.1.2.-) ; Protein Deglycase DJ-1 (EC 3.1.2.-) ; Dopamine (VTD58H1Z2X)
    Language English
    Publishing date 2015
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ISSN 1932-6203
    ISSN (online) 1932-6203
    DOI 10.1371/journal.pone.0136641
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: Delineation of domains within the cannabinoid CB1 and dopamine D2 receptors that mediate the formation of the heterodimer complex.

    Khan, Shazina S / Lee, Frank J S

    Journal of molecular neuroscience : MN

    2013  Volume 53, Issue 1, Page(s) 10–21

    Abstract: Both the cannabinoid CB1 receptor (CB1) and dopamine D2 receptor (D2R) are G protein-coupled receptors that are linked to inhibitory Gαi/o protein, whereby activation of the receptor leads to the inhibition of cAMP production. Moreover, previous findings ...

    Abstract Both the cannabinoid CB1 receptor (CB1) and dopamine D2 receptor (D2R) are G protein-coupled receptors that are linked to inhibitory Gαi/o protein, whereby activation of the receptor leads to the inhibition of cAMP production. Moreover, previous findings have shown evidence of cross-talk between the dopamine and endocannabinoid systems. In this report, we confirm the interaction of CB1 and D2R with co-immunoprecipitation experiments using human embryonic kidney 293T (HEK-293T) cells co-expressing both receptors. We also generated GST and His-tagged fusion proteins of the D2R and CB1 and conducted affinity purification assays and in vitro binding experiments to show that the CB1-D2R complex can be formed by a direct protein-protein interaction. This interaction is mediated by the carboxyl terminus of the CB1 receptor and the third intracellular loop of the D2 receptor. Co-transfection of an inhibitory mini-gene resulted in decreased levels of the CB1-D2R complex. Using a cAMP biosensor, we show that activation of D2R or CB1 alone in HEK-293T cells co-expressing both receptors leads to an inhibition of forskolin-stimulated cAMP accumulation. However, co-activation of both receptors resulted in a loss of this inhibition on cAMP accumulation. Our findings characterize the physical interaction between CB1 and D2R as well as demonstrate the potential functional outcome of the receptor complex.
    MeSH term(s) HEK293 Cells ; Humans ; Protein Binding ; Protein Multimerization ; Protein Structure, Tertiary ; Receptor, Cannabinoid, CB1/chemistry ; Receptor, Cannabinoid, CB1/metabolism ; Receptors, Dopamine D2/chemistry ; Receptors, Dopamine D2/metabolism
    Chemical Substances Receptor, Cannabinoid, CB1 ; Receptors, Dopamine D2
    Language English
    Publishing date 2013-11-22
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 1043392-2
    ISSN 1559-1166 ; 0895-8696
    ISSN (online) 1559-1166
    ISSN 0895-8696
    DOI 10.1007/s12031-013-0181-7
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article: Genetic factors involved in the pathogenesis of Parkinson's disease.

    Lee, Frank J S / Liu, Fang

    Brain research reviews

    2008  Volume 58, Issue 2, Page(s) 354–364

    Abstract: Parkinson's disease (PD) is a neurodegenerative disease characterized by a loss of nigrostriatal dopaminergic neurons. Recently, PD research has been stimulated by the identification of genes that are implicated in rare familial forms of PD. However, ... ...

    Abstract Parkinson's disease (PD) is a neurodegenerative disease characterized by a loss of nigrostriatal dopaminergic neurons. Recently, PD research has been stimulated by the identification of genes that are implicated in rare familial forms of PD. However, despite these discoveries, the primary cause of PD is still unclear. Various pathogenic mechanisms may be involved including mitochondrial dysfunction, proteasomal dysfunction/protein aggregation, oxidative damage, environmental factors and genetic disposition. Furthermore, dopamine has also been implicated in contributing to the pathogenesis of PD. This review will focus on the genes that have been identified to be associated with PD and how they may impair dopamine metabolism. Understanding the role of these PD-related genes in dopamine neurobiology may provide insight into the underpinning pathogenic mechanisms of PD.
    MeSH term(s) Animals ; Dopamine/metabolism ; Humans ; Intracellular Signaling Peptides and Proteins/genetics ; Membrane Proteins/genetics ; Neoplasm Proteins/genetics ; Oncogene Proteins/genetics ; Parkinson Disease/genetics ; Parkinson Disease/pathology ; Protein Deglycase DJ-1 ; Protein Kinases/genetics ; Ubiquitin Thiolesterase/genetics ; Ubiquitin-Protein Ligases/genetics ; alpha-Synuclein/genetics
    Chemical Substances Intracellular Signaling Peptides and Proteins ; LRRN1 protein, human ; Membrane Proteins ; Neoplasm Proteins ; Oncogene Proteins ; UCHL1 protein, human ; alpha-Synuclein ; Ubiquitin-Protein Ligases (EC 2.3.2.27) ; parkin protein (EC 2.3.2.27) ; Protein Kinases (EC 2.7.-) ; PTEN-induced putative kinase (EC 2.7.11.1) ; PARK7 protein, human (EC 3.1.2.-) ; Protein Deglycase DJ-1 (EC 3.1.2.-) ; Ubiquitin Thiolesterase (EC 3.4.19.12) ; Dopamine (VTD58H1Z2X)
    Language English
    Publishing date 2008-02-11
    Publishing country Netherlands
    Document type Journal Article ; Review
    ZDB-ID 423722-5
    ISSN 1872-6321 ; 0165-0173
    ISSN (online) 1872-6321
    ISSN 0165-0173
    DOI 10.1016/j.brainresrev.2008.02.001
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article ; Online: Serum amyloid P component (SAP) modulates antidepressant effects through promoting membrane insertion of the serotonin transporter.

    Su, Ping / Yan, Shuxin / Yang, Jian / Tong, Junchao / Samsom, James / You, Fan / Li, Yun / Chen, Qiuyue / Jiang, Anlong / Zhai, Dongxu / Chen, Jiahao / Sun, Zuoli / Zhou, Jingjing / Liu, Min / Lee, Frank J S / Xu, Zhi-Qing David / Wang, Xin / Vasdev, Neil / Wong, Albert H C /
    Liu, Fang

    Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology

    2022  Volume 48, Issue 3, Page(s) 508–517

    Abstract: Serum amyloid P component (SAP) is a universal constituent of human amyloid deposits including those in Alzheimer's disease. SAP has been observed to be elevated in patients with depression, and higher SAP levels are associated with better response to ... ...

    Abstract Serum amyloid P component (SAP) is a universal constituent of human amyloid deposits including those in Alzheimer's disease. SAP has been observed to be elevated in patients with depression, and higher SAP levels are associated with better response to the antidepressant escitalopram. The mechanisms underlying these clinical observations remain unclear. We examined the effect of SAP on serotonin transporter (SERT) expression and localization using Western blot, confocal microscopy, and positron emission tomography with the radioligand [
    MeSH term(s) Humans ; Mice ; Animals ; Serotonin Plasma Membrane Transport Proteins/metabolism ; Serum Amyloid P-Component/metabolism ; Escitalopram ; Antidepressive Agents/pharmacology ; Selective Serotonin Reuptake Inhibitors/pharmacology
    Chemical Substances Serotonin Plasma Membrane Transport Proteins ; Serum Amyloid P-Component ; Escitalopram (4O4S742ANY) ; Antidepressive Agents ; Selective Serotonin Reuptake Inhibitors
    Language English
    Publishing date 2022-09-08
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 639471-1
    ISSN 1740-634X ; 0893-133X
    ISSN (online) 1740-634X
    ISSN 0893-133X
    DOI 10.1038/s41386-022-01449-4
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article: Potential consequences of angling on nest-site fidelity in largemouth bass

    Twardek, William M / Aaron D. Shultz / David P. Philipp / Frank J. S. Phelan / Jeffrey A. Stein / Jeffrey B. Koppelman / Julie E. Claussen / Steven J. Cooke

    Environmental biology of fishes. 2017 May, v. 100, no. 5

    2017  

    Abstract: Breeding site fidelity has evolved in many vertebrate taxa, suggesting both that site selection has an important influence on fitness potential and that the decision to reuse a nesting site is related to the individual’s prior nesting success at that ... ...

    Abstract Breeding site fidelity has evolved in many vertebrate taxa, suggesting both that site selection has an important influence on fitness potential and that the decision to reuse a nesting site is related to the individual’s prior nesting success at that location. For a species that provides parental care, such as the Largemouth Bass Micropterus salmoides, catch-and-release angling impacts individual nesting success and fitness through physiological disturbance and by removing the nest-guarding male from its brood, thereby allowing temporary access to eggs and hatchlings by brood predators. To assess the impact of catch-and-release angling on nest site fidelity, we compared the consequences of angling on individually marked (i.e., with passive integrated transponders) nest-guarding male Largemouth Bass in Ontario. An extremely high degree of nest site fidelity in year two was observed for males that were angled only once during year one (87% within 10 m of the previous year’s nest), 96.7% of which remained on the nest and completed parental care activities. There was significantly lower fidelity in year two, however, for males that were angled multiple times during year one (27% within 10m of the previous year’s nest), only 5.6% of which remained on the nest and completed parental care activities. This observed difference suggests that angling nesting bass may cause them to avoid previously used nest sites and instead search for alternative sites during future reproductive seasons. This human-induced impact on nest site choice may impact the future reproductive success of those Largemouth Bass.
    Keywords bass ; breeding season ; eggs ; males ; Micropterus salmoides ; nesting sites ; nests ; philopatry ; predators ; reproductive success ; sport fishing ; transponders ; Ontario
    Language English
    Dates of publication 2017-05
    Size p. 611-616.
    Publishing place Springer Netherlands
    Document type Article
    ZDB-ID 196790-3
    ISSN 1573-5133 ; 0378-1909
    ISSN (online) 1573-5133
    ISSN 0378-1909
    DOI 10.1007/s10641-016-0558-x
    Database NAL-Catalogue (AGRICOLA)

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