Is sodium current present in human sinoatrial node cells?

Abstract:

:Pacemaker activity of the sinoatrial node has been studied extensively in various animal species, but is virtually unexplored in man. As such, it is unknown whether the fast sodium current (I(Na)) plays a role in the pacemaker activity of the human sinoatrial node. Recently, we had the unique opportunity to perform patch-clamp experiments on single pacemaker cells isolated from a human sinoatrial node. In 2 out of the 3 cells measured, we observed large inward currents with characteristics of I(Na). Although we were unable to analyze the current in detail, our findings provide strong evidence that I(Na) is present in human sinoatrial node pacemaker cells, and that this I(Na) is functionally available at potentials negative to -60 mV.

journal_name

Int J Biol Sci

authors

Verkerk AO,Wilders R,van Borren MM,Tan HL

doi

10.7150/ijbs.5.201

subject

Has Abstract

pub_date

2009-01-01 00:00:00

pages

201-4

issue

2

issn

1449-2288

journal_volume

5

pub_type

杂志文章
  • Mechanical tumor microenvironment and transduction: cytoskeleton mediates cancer cell invasion and metastasis.

    abstract::Metastasis is a complicated, multistep process that is responsible for over 90% of cancer-related death. Metastatic disease or the movement of cancer cells from one site to another requires dramatic remodeling of the cytoskeleton. The regulation of cancer cell migration is determined not only by biochemical factors in...

    journal_title:International journal of biological sciences

    pub_type: 杂志文章,评审

    doi:10.7150/ijbs.44943

    authors: Li X,Wang J

    更新日期:2020-04-27 00:00:00

  • Umbelliferone Prevents Lipopolysaccharide-Induced Bone Loss and Suppresses RANKL-Induced Osteoclastogenesis by Attenuating Akt-c-Fos-NFATc1 Signaling.

    abstract::Excessive bone resorption plays a central role in the development of inflammatory bone diseases, including osteoporosis and rheumatoid arthritis. Thus, identification of agents that can effectively suppress excessive osteoclast formation and function is crucial for the prevention and treatment of inflammatory bone los...

    journal_title:International journal of biological sciences

    pub_type: 杂志文章

    doi:10.7150/ijbs.28609

    authors: Kwak SC,Baek JM,Lee CH,Yoon KH,Lee MS,Kim JY

    更新日期:2019-09-07 00:00:00

  • Antennal expression pattern of two olfactory receptors and an odorant binding protein implicated in host odor detection by the malaria vector Anopheles gambiae.

    abstract::Odor-detection in the malaria mosquito Anopheles gambiae involves large families of diverse proteins, including multiple odorant binding proteins (AgOBPs) and olfactory receptors (AgORs). The receptors AgOR1 and AgOR2, as well as the binding protein AgOBP1, have been implicated in the recognition of human host odors. ...

    journal_title:International journal of biological sciences

    pub_type: 杂志文章

    doi:10.7150/ijbs.6.614

    authors: Schymura D,Forstner M,Schultze A,Kröber T,Swevers L,Iatrou K,Krieger J

    更新日期:2010-10-08 00:00:00

  • The gain of function of p53 mutant p53S in promoting tumorigenesis by cross-talking with H-RasV12.

    abstract::The loss of wild type p53 tumor suppressive function and oncogenic gain-of-function of p53 mutants have been showing important implications in tumorigenesis. The p53(N236S) (p53(N239S) in human, p53S) mutation has been shown to lose wild type p53 function by yeast assay. However, its gain of function is still not clea...

    journal_title:International journal of biological sciences

    pub_type: 杂志文章

    doi:10.7150/ijbs.4176

    authors: Jia S,Zhao L,Tang W,Luo Y

    更新日期:2012-01-01 00:00:00

  • Oncogenic Protein Kinase D3 Regulating Networks in Invasive Breast Cancer.

    abstract::Protein Kinase D3 (PRKD3) functions as an important oncogenic driver in invasive breast cancer, which is the leading cause of women mortality. However, PRKD3 regulating network is largely unknown. In this study, we systematically explored PRKD3 regulating networks via investigating phosphoproteome, interactome and tra...

    journal_title:International journal of biological sciences

    pub_type: 杂志文章

    doi:10.7150/ijbs.18472

    authors: Liu Y,Li J,Zhang J,Yu Z,Yu S,Wu L,Wang Y,Gong X,Wu C,Cai X,Mo L,Wang M,Gu J,Chen L

    更新日期:2017-05-16 00:00:00

  • Crosstalk between Epigenetic Modulations in Valproic Acid Deactivated Hepatic Stellate Cells: An Integrated Protein and miRNA Profiling Study.

    abstract::Reverting activated hepatic stellate cells (HSCs) to less activation or quiescent status is a promising strategy for liver fibrosis. Histone deacetylase inhibitor (HDACI) could suppress HSCs activation. Our previous study demonstrated a critical role of miRNAs in HSCs activation. Here, we explored the involvement of m...

    journal_title:International journal of biological sciences

    pub_type: 杂志文章

    doi:10.7150/ijbs.28642

    authors: Lu P,Yan M,He L,Li J,Ji Y,Ji J

    更新日期:2019-01-06 00:00:00

  • Adapted Resistance to the Knockdown Effect of shRNA-Derived Srsf3 siRNAs in Mouse Littermates.

    abstract::Gene silencing techniques are widely used to control gene expression and have potential for RNAi-based therapeutics. In this report, transgenic mouse lines were created for conditional knockdown of Srsf3 (SRp20) expression in liver and mammary gland tissues by expressing Srsf3-specific shRNAs driven by a U6 promoter. ...

    journal_title:International journal of biological sciences

    pub_type: 杂志文章

    doi:10.7150/ijbs.13011

    authors: Ajiro M,Jia R,Wang RH,Deng CX,Zheng ZM

    更新日期:2015-09-03 00:00:00

  • Mast cell-nerve cell interaction at acupoint: modeling mechanotransduction pathway induced by acupuncture.

    abstract::Mast cells are found abundant at sites of acupoints. Nerve cells share perivascular localization with mast cells. Acupuncture (mechanical stimuli) can activate mast cells to release adenosine triphosphate (ATP) which can activate nerve cells and modulates pain-processing pathways in response to acupuncture. In this pa...

    journal_title:International journal of biological sciences

    pub_type: 杂志文章

    doi:10.7150/ijbs.8631

    authors: Yao W,Yang H,Yin N,Ding G

    更新日期:2014-04-26 00:00:00

  • Melatonin Stimulates STAR Expression and Progesterone Production via Activation of the PI3K/AKT Pathway in Bovine Theca Cells.

    abstract::Melatonin is present in mammalian follicular fluid and plays an important role in regulating steroidogenesis in follicular cells. In this study, we report the effect of melatonin on steroidogenesis in the theca interna (TI) in small bovine follicles and theca cells (TCs) cultured in vitro. Treatment with melatonin sig...

    journal_title:International journal of biological sciences

    pub_type: 杂志文章

    doi:10.7150/ijbs.27912

    authors: Wang X,Meng K,He Y,Wang H,Zhang Y,Quan F

    更新日期:2019-01-01 00:00:00

  • Zika Virus Envelope Protein induces G2/M Cell Cycle Arrest and Apoptosis via an Intrinsic Cell Death Signaling Pathway in Neuroendocrine PC12 Cells.

    abstract::Clinical evidence suggests that there exists a strong correlation between Zika virus (ZIKV) infection and abnormal development of the nervous system. However, the underlying mechanisms remain to be elusive. In this study, recombinant lentiviral vectors coding for ZIKV structural proteins and truncations (prM-Env, M-En...

    journal_title:International journal of biological sciences

    pub_type: 杂志文章

    doi:10.7150/ijbs.26400

    authors: Liu J,Li Q,Li X,Qiu Z,Li A,Liang W,Chen H,Cai X,Chen X,Duan X,Li J,Wu W,Xu M,Mao Y,Chen H,Li J,Gu W,Li H

    更新日期:2018-06-08 00:00:00

  • Reno-protection of Urine-derived Stem Cells in A Chronic Kidney Disease Rat Model Induced by Renal Ischemia and Nephrotoxicity.

    abstract::Purpose: Drug-induced nephrotoxicity can occur in patients with pre-existing renal dysfunction or renal ischemia, potentially leading to chronic kidney disease (CKD) and end-stage renal disease (ESRD). Prompt treatment of CKD and the related side effects is critical in preventing progression to ESRD. The goal of this ...

    journal_title:International journal of biological sciences

    pub_type: 杂志文章

    doi:10.7150/ijbs.37550

    authors: Zhang C,George SK,Wu R,Thakker PU,Abolbashari M,Kim TH,Ko IK,Zhang Y,Sun Y,Jackson J,Lee SJ,Yoo JJ,Atala A

    更新日期:2020-01-01 00:00:00

  • Research Advances in CKLF-like MARVEL Transmembrane Domain-containing Family in Non-small Cell Lung Cancer.

    abstract::CKLF-like MARVEL transmembrane domain-containing member (CMTM) is a new gene family first cloned and reported in 2001. The CMTM family consists of nine members including CKLF and CMTM1-CMTM8, which are located on different chromosomes. Besides exhibiting extensive chemotactic activity, the CMTM family plays an importa...

    journal_title:International journal of biological sciences

    pub_type: 杂志文章,评审

    doi:10.7150/ijbs.33733

    authors: Wu K,Li X,Gu H,Yang Q,Liu Y,Wang L

    更新日期:2019-09-07 00:00:00

  • A new trick of an old molecule: androgen receptor splice variants taking the stage?!

    abstract::Prostate cancer is the second leading cause of cancer-related death in American men. Although most prostate cancers are initially androgen-dependent and respond to androgen ablation therapy, majority of them eventually relapse and progress into incurable castration-resistant (or hormone refractory) prostate cancer. Th...

    journal_title:International journal of biological sciences

    pub_type: 杂志文章,评审

    doi:10.7150/ijbs.7.815

    authors: Guo Z,Qiu Y

    更新日期:2011-01-01 00:00:00

  • NOD2 is involved in the inflammatory response after cerebral ischemia-reperfusion injury and triggers NADPH oxidase 2-derived reactive oxygen species.

    abstract:BACKGROUND:Increasing evidences suggest that innate immunity is involved in cerebral ischemia-reperfusion (I/R) injury, but the liable innate immune receptors have not been completely elucidated. Here, we explored the role of the nucleotide-binding oligomerization domain (NOD)2, a member of the cytosolic NOD-like recep...

    journal_title:International journal of biological sciences

    pub_type: 杂志文章

    doi:10.7150/ijbs.10927

    authors: Liu H,Wei X,Kong L,Liu X,Cheng L,Yan S,Zhang X,Chen L

    更新日期:2015-03-25 00:00:00

  • Exosomal transfer of vasorin expressed in hepatocellular carcinoma cells promotes migration of human umbilical vein endothelial cells.

    abstract::Vasorin (VASN) is a type I transmembrane protein that plays important roles in tumor development and vasculogenesis. In this paper, we showed that VASN could be a key mediator of communication between tumor cells and endothelial cells. We confirmed for the first time that HepG2-derived VASN can be transferred to human...

    journal_title:International journal of biological sciences

    pub_type: 杂志文章

    doi:10.7150/ijbs.11943

    authors: Huang A,Dong J,Li S,Wang C,Ding H,Li H,Su X,Ge X,Sun L,Bai C,Shen X,Fang T,Li J,Shao N

    更新日期:2015-06-11 00:00:00

  • MiR-696 Regulates C2C12 Cell Proliferation and Differentiation by Targeting CNTFRα.

    abstract::Micro-696 (miR-696) has been previously known as an exercise related miRNA, which has a profound role in fatty acid oxidation and mitochondrial biogenesis of skeletal muscle. However, its role in skeletal myoblast proliferation and differentiation is still unclear. In this study, we found that miR-696 expressed highly...

    journal_title:International journal of biological sciences

    pub_type: 杂志文章

    doi:10.7150/ijbs.17508

    authors: Wang H,Shi L,Liang T,Wang B,Wu W,Su G,Wei J,Li P,Huang R

    更新日期:2017-03-11 00:00:00

  • A novel brain neurovascular unit model with neurons, astrocytes and microvascular endothelial cells of rat.

    abstract::A novel triple cell neurovascular unit (NVU) model co-culturing with neurons, brain microvascular endothelial cells (BMECs) and astrocytes was established in this study for investigating the cerebral diseases and screening the candidates of therapeutic drug. We have first performed the cell identification and morpholo...

    journal_title:International journal of biological sciences

    pub_type: 杂志文章

    doi:10.7150/ijbs.5115

    authors: Xue Q,Liu Y,Qi H,Ma Q,Xu L,Chen W,Chen G,Xu X

    更新日期:2013-01-01 00:00:00

  • Identification and Characterization of Novel Maize Mirnas Involved in Different Genetic Background.

    abstract::MicroRNAs (miRNAs) are a class of small, non-coding regulatory RNAs that regulate gene expression by guiding target mRNA cleavage or translational inhibition in plants and animals. At present there is relatively little information regarding the role of miRNAs in the response to drought stress in maize. In this study, ...

    journal_title:International journal of biological sciences

    pub_type: 杂志文章

    doi:10.7150/ijbs.11619

    authors: Sheng L,Chai W,Gong X,Zhou L,Cai R,Li X,Zhao Y,Jiang H,Cheng B

    更新日期:2015-05-22 00:00:00

  • Effects of diosgenin on myometrial matrix metalloproteinase-2 and -9 activity and expression in ovariectomized rats.

    abstract::Diosgenin, a traditional Yam extraction, has been used in hormone replacement for menopausal women. We aimed to investigate the influences of diosgenin administration upon the MMP-2 and -9 activity and expression and reproductive hormones of ovariectomized (OVX) rats, a model of menopausal status. Seven-week old femal...

    journal_title:International journal of biological sciences

    pub_type: 杂志文章

    doi:10.7150/ijbs.7.837

    authors: Chang CC,Kuan TC,Hsieh YY,Ho YJ,Sun YL,Lin CS

    更新日期:2011-01-01 00:00:00

  • Caffeine Inhibits NLRP3 Inflammasome Activation by Suppressing MAPK/NF-κB and A2aR Signaling in LPS-Induced THP-1 Macrophages.

    abstract::Excessive inflammation induced by various risk factors is associated with the development of bronchopulmonary dysplasia (BPD). Caffeine exerts potent anti-inflammatory effects as a clinical preventive medicine for BPD. Recently, NLRP3 inflammasome activation has been demonstrated to be essential for the pathogenesis o...

    journal_title:International journal of biological sciences

    pub_type: 杂志文章

    doi:10.7150/ijbs.34211

    authors: Zhao W,Ma L,Cai C,Gong X

    更新日期:2019-06-02 00:00:00

  • Evaluation of Breast Cancer Stem Cells and Intratumor Stemness Heterogeneity in Triple-negative Breast Cancer as Prognostic Factors.

    abstract::Triple-negative breast cancer (TNBC) is a tumor subtype with aggressive behavior and poor clinical outcome for lacking effective therapies. Breast cancer stem cells (BCSCs) have been suggested to have tumor-initiating properties, but it remains unclear whether their presence contributes to the increased aggressiveness...

    journal_title:International journal of biological sciences

    pub_type: 杂志文章

    doi:10.7150/ijbs.16874

    authors: Yang F,Cao L,Sun Z,Jin J,Fang H,Zhang W,Guan X

    更新日期:2016-12-07 00:00:00

  • MiR-216a-5p inhibits tumorigenesis in Pancreatic Cancer by targeting TPT1/mTORC1 and is mediated by LINC01133.

    abstract::MiR-216a-5p has opposite effects on tumorigenesis and progression in the context of different tumors, acting as either a tumor suppressor or an oncogene. However, the expression and function of miR-216a-5p in pancreatic cancer (PC) is not well characterized. In this study, we found miR-216a-5p was significantly downre...

    journal_title:International journal of biological sciences

    pub_type: 杂志文章

    doi:10.7150/ijbs.46822

    authors: Zhang J,Gao S,Zhang Y,Yi H,Xu M,Xu J,Liu H,Ding Z,He H,Wang H,Hao Z,Sun L,Liu Y,Wei F

    更新日期:2020-07-19 00:00:00

  • Loop nucleotide polymorphism in a putative miRNA precursor associated with seed length in rice (Oryza sativa L.).

    abstract::The terminal loop region of primary miRNA transcripts is an important determinant controlling miRNA function in human, animals and plants. However, the effects of polymorphisms in loop region of miRNA precusors on phenotypic variation have not been reported, especially on agronomic traits in rice. From rice japonica v...

    journal_title:International journal of biological sciences

    pub_type: 杂志文章

    doi:10.7150/ijbs.6357

    authors: Wang C,Ye J,Tang W,Liu Z,Zhu C,Wang M,Wan J

    更新日期:2013-06-16 00:00:00

  • Vital Roles of β-catenin in Trans-differentiation of Chondrocytes to Bone Cells.

    abstract::A recent breakthrough showing that direct trans-differentiation of chondrocytes into bone cells commonly occurs during endochondral bone formation in the growth plate, articular cartilage, and mandibular condylar cartilage suggests that chondrogenesis and osteogenesis are likely one continuous biological process inste...

    journal_title:International journal of biological sciences

    pub_type: 杂志文章

    doi:10.7150/ijbs.23165

    authors: Jing Y,Jing J,Wang K,Chan K,Harris SE,Hinton RJ,Feng JQ

    更新日期:2018-01-01 00:00:00

  • Enrichment of prostate cancer stem-like cells from human prostate cancer cell lines by culture in serum-free medium and chemoradiotherapy.

    abstract::The discovery of rare subpopulations of cancer stem cells (CSCs) has created a new focus in cancer research. As CSCs demonstrate resistance to chemoradiation therapy relative to other cancer cells, this allows the enrichment of CSC populations by killing apoptosis-susceptible cancer cells. In this study, three commonl...

    journal_title:International journal of biological sciences

    pub_type: 杂志文章

    doi:10.7150/ijbs.5855

    authors: Wang L,Huang X,Zheng X,Wang X,Li S,Zhang L,Yang Z,Xia Z

    更新日期:2013-05-15 00:00:00

  • FRS2α is essential for the fibroblast growth factor to regulate the mTOR pathway and autophagy in mouse embryonic fibroblasts.

    abstract::Although the fibroblast growth factor (FGF) signaling axis plays important roles in cell survival, proliferation, and differentiation, the molecular mechanism underlying how the FGF elicits these diverse regulatory signals is not well understood. By using the Frs2α null mouse embryonic fibroblast (MEF) in conjunction ...

    journal_title:International journal of biological sciences

    pub_type: 杂志文章

    doi:10.7150/ijbs.7.1114

    authors: Lin X,Zhang Y,Liu L,McKeehan WL,Shen Y,Song S,Wang F

    更新日期:2011-01-01 00:00:00

  • Novel Functions of CD147 in the Mitochondria Exacerbates Melanoma Metastasis.

    abstract::Melanoma is an aggressive form of skin cancer characterized by rapid invasion and metastasis. CD147 is known to be functioning in cell invasion. In this study, we showed that CD147 was translocated from the cell membrane to the mitochondria in advanced melanoma. Melanoma patients with CD147 localized to the mitochondr...

    journal_title:International journal of biological sciences

    pub_type: 杂志文章

    doi:10.7150/ijbs.52043

    authors: Lu L,Zhang J,Gan P,Wu L,Zhang X,Peng C,Zhou J,Chen X,Su J

    更新日期:2021-01-01 00:00:00

  • Interleukin-8 regulates endothelial permeability by down-regulation of tight junction but not dependent on integrins induced focal adhesions.

    abstract::Interleukin-8 (IL-8) is a common inflammatory factor, which involves in various non-specific pathological processes of inflammation. It has been found that increased endothelial permeability accompanied with high expression of IL-8 at site of injured endothelium and atherosclerotic plaque at early stages, suggesting t...

    journal_title:International journal of biological sciences

    pub_type: 杂志文章

    doi:10.7150/ijbs.6996

    authors: Yu H,Huang X,Ma Y,Gao M,Wang O,Gao T,Shen Y,Liu X

    更新日期:2013-09-23 00:00:00

  • Effect of IL-18 on the Expansion and Phenotype of Human Natural Killer Cells: Application to Cancer Immunotherapy.

    abstract::When pathogenic stresses are recognized by innate immune cells, inflammasomes are assembled and caspase-1 is activated, resulting in the conversion of pro-IL-18 into mature IL-18. Because natural killer (NK) cells express IL-18 receptors, IL-18 may play roles in immune functions of NK cells. In the present study, we e...

    journal_title:International journal of biological sciences

    pub_type: 杂志文章

    doi:10.7150/ijbs.22809

    authors: Senju H,Kumagai A,Nakamura Y,Yamaguchi H,Nakatomi K,Fukami S,Shiraishi K,Harada Y,Nakamura M,Okamura H,Tanaka Y,Mukae H

    更新日期:2018-03-09 00:00:00

  • DNA-PKcs Negatively Regulates Cyclin B1 Protein Stability through Facilitating Its Ubiquitination Mediated by Cdh1-APC/C Pathway.

    abstract::The catalytic subunit of DNA-dependent protein kinase (DNA-PKcs) is a critical component of the non-homologous end-joining pathway of DNA double-stranded break repair. DNA-PKcs has also been shown recently functioning in mitotic regulation. Here, we report that DNA-PKcs negatively regulates the stability of Cyclin B1 ...

    journal_title:International journal of biological sciences

    pub_type: 杂志文章

    doi:10.7150/ijbs.12443

    authors: Shang ZF,Tan W,Liu XD,Yu L,Li B,Li M,Song M,Wang Y,Xiao BB,Zhong CG,Guan H,Zhou PK

    更新日期:2015-07-14 00:00:00