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https://www.readbyqxmd.com/read/28443239/primitive-neuro-ectodermal-tumor-arising-in-a-testicular-teratoma-with-retroperitoneal-metastasis-a-case-report-and-review-of-literature
#1
Guodong Hu, Andrew Wang, Xiu Wang, Leilei Xia, Benjamin L Taylor, S Buce Malkowicz, Priti Lal, Julia R Maisel
A 38-year-old man presenting with left testicular mass and extensive retroperitoneal lymphadenopathy underwent radical orchiectomy and specimen showed a germ cell tumor of primarily primitive neuroectodermal tumor mixed with mature teratoma. He then underwent RPLND, followed by adjuvant CAV (cyclophosphamide, doxorubicin, vincristine) and IE (ifosfamide, etoposide) alternating chemotherapy given the high rate of recurrence and high rate of response to the PNET-specific chemotherapy.
July 2017: Urology Case Reports
https://www.readbyqxmd.com/read/28440485/sclareol-inhibits-cell-proliferation-and-sensitizes-cells-to-the-antiproliferative-effect-of-bortezomib-via-upregulating-the-tumor-suppressor-caveolin-1-in-cervical-cancer-cells
#2
Ting Zhang, Ting Wang, Peiling Cai
The anticancer effect of sclareol has long been reported, however, the exact mechanisms underlying the antitumorigenic effect of sclareol in cervical carcinoma remain to be fully elucidated. The present study analyzed cell proliferation and cell apoptosis by MTT and FITC‑Annexin V assays. The protein levels of caveolin‑1 (Cav‑1) and copper-zinc superoxide dismutase (SOD)1 were determined by western blotting, and the interaction of Cav1 and HSC70 was investigated by co‑immunoprecipitation experiments...
April 13, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28425200/high-dose-calcineurin-inhibitor-free-everolimus-as-a-maintenance-regimen-for-heart-transplantation-may-be-a-risk-factor-for%C3%A2-pneumocystis-pneumonia
#3
Yu-Ning Hu, Nan-Yao Lee, Jun-Neng Roan, Chi-Hsin Hsu, Chwan-Yao Luo
BACKGROUND: Everolimus reduces the incidence of cardiac-allograft vasculopathy (CAV) and is less renally toxic than are calcineurin inhibitors (CNIs). We evaluated the safety of CNI-free everolimus for post-heart transplant (HTx) patients. METHODS: We retrospectively reviewed the records of 36 consecutive patients who had undergone an HTx between January 2006 and December 2013 in National Cheng Kung University Hospital. All patients initially had been treated with the standard tacrolimus regimen...
April 20, 2017: Transplant Infectious Disease: An Official Journal of the Transplantation Society
https://www.readbyqxmd.com/read/28424589/the-calcium-channel-c-terminal-and-synaptic-vesicle-tethering-analysis-by-immuno-nanogold-localization
#4
Robert H C Chen, Qi Li, Christine A Snidal, Sabiha R Gardezi, Elise F Stanley
At chemical synapses the incoming action potential triggers the influx of Ca(2+) through voltage-sensitive calcium channels (CaVs, typically CaV2.1 and 2.2) and the ions binds to sensors associated with docked, transmitter filled synaptic vesicles (SVs), triggering their fusion and discharge. The CaVs and docked SVs are located within the active zone (AZ) region of the synapse which faces a corresponding neurotransmitter receptor-rich region on the post-synaptic cell. Evidence that the fusion of a SV can be gated by Ca(2+) influx through a single CaV suggests that the channel and docked vesicle are linked by one or more molecular tethers (Stanley, 1993)...
2017: Frontiers in Cellular Neuroscience
https://www.readbyqxmd.com/read/28420984/potential-roles-of-serum-caveolin-3-levels-in-patients-with-atrial-fibrillation
#5
Ling-Yue Sun, Xiang Qu, Ling-Zhi Chen, Gao-Shu Zheng, Xin-Lei Wu, Xing-Xing Chen, Wei-Jian Huang, Hao Zhou
Objective: To explore serum caveolin-3 (Cav-3) levels in patients with atrial fibrillation (AF) and to evaluate the role of Cav-3 as a biomarker for AF and incident heart failure (HF). Methods: Three hundred and five patients were enrolled in the study and divided into three groups: sinus rhythm (Group SR), paroxysmal AF (Group paAF), and persistent AF (Group peAF). Serum Cav-3 concentrations were measured by enzyme-linked immunosorbent assay at baseline. Clinical characteristics, and laboratory data were collected during hospitalization, and a follow-up of 12-months was carried out...
2017: Frontiers in Aging Neuroscience
https://www.readbyqxmd.com/read/28420590/volume-and-dimensions-of-angiographically-normal-coronary-arteries-assessed-by-multidetector-computed-tomography
#6
Samuel Kiil Sørensen, Jørgen Tobias Kühl, Andreas Fuchs, Jakob Boesgaard Norsk, Lars Valeur Køber, Børge Grønne Nordestgaard, Klaus Fuglsang Kofoed
BACKGROUND: The objective of this study was to determine normal values for coronary artery volume (CAV) and individual vasculature and segment dimensions. METHODS: We examined 200 healthy volunteers with an Agatston score of 0 and a normal, high quality coronary CTA. Using 320 slice multidetector row CT and designated vessel tracing software with border detection algorithm, the main coronary arteries and branches were delineated and total and segmental dimensions calculated...
April 4, 2017: Journal of Cardiovascular Computed Tomography
https://www.readbyqxmd.com/read/28413189/heart-transplantation-in-asia
#7
Hae-Young Lee, Byung-Hee Oh
Heart transplantation (HTx) is the effective way to improve quality of life as well as survival in terminal heart failure (HF) patients. Since the first heart transplant in 1968 in Japan and in earnest in 1987 at Taiwan, HTx has been continuously increasing in Asia. Although the current percentage of heart transplants from Asia comprises only 5.7% of cases in the International Society of Heart and Lung Transplantation (ISHLT) registry, the values were under-reported and soon will be greatly increased. HTx in Asia shows comparable with or even better results compared with ISHLT registry data...
April 11, 2017: Circulation Journal: Official Journal of the Japanese Circulation Society
https://www.readbyqxmd.com/read/28406893/the-chemical-basis-for-electrical-signaling
#8
REVIEW
William A Catterall, Goragot Wisedchaisri, Ning Zheng
Electrical signals generated by minute currents of ions moving across cell membranes are central to all rapid processes in biology. Initiation and propagation of electrical signals requires voltage-gated sodium (NaV) and calcium (CaV) channels. These channels contain a tetramer of membrane-bound subunits or domains comprising a voltage sensor and a pore module. Voltage-dependent activation occurs as membrane depolarization drives outward movements of positive gating changes in the voltage sensor via a sliding-helix mechanism, which leads to a conformational change in the pore module that opens its intracellular activation gate...
April 13, 2017: Nature Chemical Biology
https://www.readbyqxmd.com/read/28402952/caveolin-1-scaffolding-domain-peptides-enhance-anti-inflammatory-effect-of-heme-oxygenase-1-through-interrupting-its-interact-with-caveolin-1
#9
Ping Weng, Xiao-Tong Zhang, Qiong Sheng, Wen-Fang Tian, Jun-Liang Chen, Jia-Jia Yuan, Ji-Ru Zhang, Qing-Feng Pang
Caveolin-1(Cav-1) scaffolding domain (CSD) peptides compete with the plasma membrane Cav-1, inhibit the interaction of the proteins and Cav-1, and re-store the functions of Cav-1 binding proteins. Heme oxygenase-1 (HO-1) binds to Cav-1 and its enzymatic activity was inhibited. In this study, we investigated the effect of CSD peptides on interaction between HO-1 and Cav-1, and on the HO-1 activity in vitro and in vivo. Our data showed that CSD peptides decreased the compartmentalization of HO-1 and Cav-1, and increased the HO-1 activity both in LPS-treated alveolar macrophages and in mice...
March 29, 2017: Oncotarget
https://www.readbyqxmd.com/read/28390683/prognostic-utility-of-right-ventricular-free-wall-strain-in-low-risk-patients-after-orthotopic-heart-transplantation
#10
Amr F Barakat, Brett W Sperry, Randall C Starling, Amgad Mentias, Zoran B Popovic, Brian P Griffin, Milind Y Desai
Global longitudinal strain (GLS) by speckle-tracking echocardiography is a sensitive measure of regional left and right ventricular (LV and RV) dysfunction, before onset of overt systolic dysfunction. We sought to evaluate the prognostic utility of measuring LV-GLS and RV free wall strain (FWS) in low risk patients at 1 year after orthotopic heart transplantation (OHT). We retrospectively studied 96 OHT recipients (age 52 ± 14 years, 64% men) free of antibody-mediated rejection or moderate to severe coronary allograft vasculopathy (CAV, grade 2 to 3) at 1 year after transplant...
March 15, 2017: American Journal of Cardiology
https://www.readbyqxmd.com/read/28389298/stimulatory-and-inhibitory-effects-of-pkc-isozymes-are-mediated-by-serine-threonine-pkc-sites-of-the-cav2-3%C3%AE-1-subunits
#11
Senthilkumar Rajagopal, Brittney K Burton, Blanche L Fields, India O El, Ganesan L Kamatchi
Protein kinase C (PKC) isozymes modulate voltage-gated calcium (Cav) currents through Cav2.2 and Cav2.3 channels by targeting serine/threonine (Ser/Thr) phosphorylation sites of Cavα1 subunits. Stimulatory (Thr-422, Ser-2108 and Ser-2132) and inhibitory (Ser-425) sites were identified in the Cav2.2α1 subunits to PKCs βII and ε. In the current study, we investigated if the homologous sites of Cav2.3α1 subunits (stimulatory: Thr-365, Ser-1995 and Ser-2011; inhibitory: Ser-369) behaved in similar manner. Several Ala and Asp mutants were constructed in Cav2...
May 1, 2017: Archives of Biochemistry and Biophysics
https://www.readbyqxmd.com/read/28386695/human-gyrovirus-apoptin-interferes-with-the-cell-cycle-and-induces-g2-m-arrest-prior-to-apoptosis
#12
Wiem Chaabane, Saeid Ghavami, Andrzej Małecki, Marek J Łos
The human gyrovirus-Apoptin (HGyv-Apoptin) is a protein that gained attention because it is selectively cytotoxic toward cancer cells. In this study, we have investigated the effect of HGyv-Apoptin on cell cycle progression of cancer cells. We also compared HGyv-Apoptin's action to its homologue chicken anemia virus Apoptin (CAV-Apoptin). We show that HGyv-Apoptin induces G2/M arrest in cancer cells. This is at least in part due to the fact that HGyv-Apoptin induces an abnormal spindle formation in mitotic cells that do not progress properly throughout the cell cycle...
April 6, 2017: Archivum Immunologiae et Therapiae Experimentalis
https://www.readbyqxmd.com/read/28374528/calcium-activated-bkca-channels-govern-dynamic-membrane-depolarizations-of-horizontal-cells-in-rodent-retina
#13
Xiaoping Sun, Arlene A Hirano, Nicholas C Brecha, Steven Barnes
Large conductance, calcium-activated potassium (BKCa ) channels have numerous roles in neurons including the regulation of membrane excitability, intracellular [Ca(2+) ] regulation, and neurotransmitter release. In the retina, they have been identified in photoreceptors, bipolar cells, amacrine cells, and ganglion cells, but have not been conclusively identified in mammalian horizontal cells. We found that outward current recorded between -30 mV and +60 mV is carried primarily in BKCa channels in isolated horizontal cells of rats and mice...
April 4, 2017: Journal of Physiology
https://www.readbyqxmd.com/read/28371478/transcriptional-regulation-of-voltage-gated-ca-2-channels
#14
REVIEW
R González-Ramírez, R Felix
The transcriptional regulation of voltage-gated Ca(2+) (CaV ) channels is an emerging research area that promises to improve our understanding of how many relevant physiological events are shaped in the central nervous system, the skeletal muscle and other tissues. Interestingly, a picture of how transcription of CaV channel subunit genes is controlled is evolving with the identification of the promoter regions required for tissue-specific expression and the identification of transcription factors that control their expression...
March 31, 2017: Acta Physiologica
https://www.readbyqxmd.com/read/28365694/correlation-of-caveolin-1-expression-with-prognosis-in-patients-with-gastric-cancer-after-gastrectomy
#15
Mesut Seker, Dincer Aydin, Ahmet Bilici, Dilek Yavuzer, Melin G Ozgun, Melike Ozcelik, Ozhan Aydin, Mehmet Aliustaoglu
BACKGROUND: Upregulation of caveolin-1 (Cav-1) expression is correlated with histopathological grade and poor prognosis in several human cancers. However, in gastric cancer, its clinical utility as a useful prognostic molecular marker remains unclear. METHODS: The prognostic importance of Cav-1 expression was retrospectively analyzed by immunohistochemistry in 148 patients with gastric cancer who had undergone radical gastrectomy. RESULTS: Cav-1 expression was positive in 23 (15...
2017: Oncology Research and Treatment
https://www.readbyqxmd.com/read/28363979/densin-180-controls-the-trafficking-and-signaling-of-l-type-voltage-gated-cav1-2-ca-2-channels-at-excitatory-synapses
#16
Shiyi Wang, Ruslan I Stanika, Xiaohan Wang, Jussara Hagen, Mary B Kennedy, Gerald J Obermair, Roger J Colbran, Amy Lee
Voltage-gated Cav1.2 and Cav1.3 (L-type) Ca(2+) channels regulate neuronal excitability, synaptic plasticity, and learning and memory. Densin-180 (densin) is an excitatory synaptic protein that promotes Ca(2+)-dependent facilitation of voltage-gated Cav1.3 Ca(2+) channels in transfected cells. Mice lacking densin (densin KO) exhibit defects in synaptic plasticity, spatial memory, and increased anxiety-related behaviors --phenotypes that more closely match those in mice lacking Cav1.2 than Cav1.3. Thus, we investigated the functional impact of densin on Cav1...
March 31, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28352235/mouse-lung-fibroblast-resistance-to-fas-mediated-apoptosis-is-dependent-on-the-baculoviral-inhibitor-of-apoptosis-protein-4-and-the-cellular-flice-inhibitory-protein
#17
Sanda A Predescu, Jian Zhang, Cristina Bardita, Monal Patel, Varun Godbole, Dan N Predescu
A characteristic feature of idiopathic pulmonary fibrosis (IPF) is accumulation of apoptotic resistant fibroblasts/myofibroblasts in the fibroblastic foci. As caveolin (Cav)-null mice develop pulmonary fibrosis (PF), we hypothesized that the participating fibroblasts display an apoptosis-resistant phenotype. To test this hypothesis and identify the molecular mechanisms involved we isolated lung fibroblasts from Cav-null mice and examined the expression of several inhibitors of apoptosis (IAPs), of c-FLIP, of Bcl-2 proteins and of the death receptor CD95/Fas...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28348921/the-effect-of-artificial-mowing-on-the-competition-of-phragmites-australis-and-spartina-alterniflora-in-the-yangtze-estuary
#18
Yue Yuan, Chao Zhang, Dezhi Li
Spartina alterniflora Loisel. is one of the most invasive species in the world. However, little is known about the role of artificial mowing in its invasiveness and competiveness. In this work, we studied the effect of mowing on its interspecific interactions with native species Phragmites australis (Cav.) Trin ex Steud of the Yangtze Estuary, China. We calculated their relative neighbor effect (RNE) index, effect of relative crowding (Dr ) index, and interaction strength (I) index. The results showed that the RNE of Phragmites australis and Spartina alterniflora was 0...
2017: Scientifica
https://www.readbyqxmd.com/read/28346478/association-of-enos-and-cav-1-gene-polymorphisms-with-susceptibility-risk-of-large-artery-atherosclerotic-stroke
#19
Hann-Yeh Shyu, Ming-Hua Chen, Yi-Hsien Hsieh, Jia-Ching Shieh, Ling-Rong Yen, Hsiao-Wei Wang, Chun-Wen Cheng
Endothelial nitric oxide synthase (eNOS) is localized in caveole and has important effects on caveolar coordination through its interaction with caveolin-1 (Cav-1), which supports normal functioning of vascular endothelial cells. However, the relationship between genotypic polymorphisms of e-NOS and Cav-1 genes and ischemic stroke (IS) remains lesser reported. This hospital-based case-control study aimed to determine the genetic polymorphisms of the eNOS (Glu298Asp) and Cav-1 (G14713A and T29107A) genes in association with susceptibility risk in patients who had suffered from a large artery atherosclerotic (LAA) stroke...
2017: PloS One
https://www.readbyqxmd.com/read/28346141/insights-into-electrosensory-organ-development-physiology-and-evolution-from-a-lateral-line-enriched-transcriptome
#20
Melinda S Modrell, Mike Lyne, Adrian R Carr, Harold H Zakon, David Buckley, Alexander S Campbell, Marcus C Davis, Gos Micklem, Clare Vh Baker
The anamniote lateral line system, comprising mechanosensory neuromasts and electrosensory ampullary organs, is a useful model for investigating the developmental and evolutionary diversification of different organs and cell types. Zebrafish neuromast development is increasingly well understood, but neither zebrafish nor Xenopus is electroreceptive and our molecular understanding of ampullary organ development is rudimentary. We have used RNA-seq to generate a lateral line-enriched gene-set from late-larval paddlefish (Polyodon spathula)...
March 27, 2017: ELife
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