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arrested development

Q-L Ma, H-J Wang, M-N Shi, J-H An, J Ma, D Yu, M Tang, F-W Shi
OBJECTIVE: Coronary heart disease (CHD) is a frequent medical condition in developed countries and is one of the most serious diseases threatening patients' lives. Perioperative myocardial infarction is the major cause of perioperative cardiac death and cardiac arrest, but is difficult to be precisely identified by observing clinical symptoms or assessing cardiac enzyme levels or by ECG examination. Therefore, assessment of patient prognosis requires reliable predictors. In this regard, we tested the prognostic value of serum troponin I (TnI) concentrations...
October 2016: European Review for Medical and Pharmacological Sciences
Magdalena Paolino, Josef M Penninger
The TAM receptor protein tyrosine kinases-Tyro3, Axl, and Mer-are essential regulators of immune homeostasis. Guided by their cognate ligands Growth arrest-specific gene 6 (Gas6) and Protein S (Pros1), these receptors ensure the resolution of inflammation by dampening the activation of innate cells as well as by restoring tissue function through promotion of tissue repair and clearance of apoptotic cells. Their central role as negative immune regulators is highlighted by the fact that deregulation of TAM signaling has been linked to the pathogenesis of autoimmune, inflammatory, and infectious diseases...
October 21, 2016: Cancers
Shengnan Guo, Yuanyuan Wang, Yu Gao, Yinxu Zhang, Mingzi Chen, Minghao Xu, Lu Hu, Yu Jing, Fangyu Jing, Chen Li, Qingjun Wang, Zhitu Zhu
BACKGROUND High mobility group-box 3 (HMGB3) has been shown to affect tumor initiation and progression. This research aimed to investigate the role of HMGB3 in gastric cancer (GC) cell proliferation, migration, invasion, chemoresistance, and its potential molecular mechanisms. MATERIAL AND METHODS GC MGC803 and BGC823 cells were transfected with siRNA targeting the HMGB3 gene. The expressions of HMGB3 protein in MGC803 and BGC823 cells after transfection were detected by Western blot assays. We detected cell proliferation and cell cycle by MTT and flow cytometry assay...
October 24, 2016: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
Himanshi Kapoor, Nalini Yadav, Madhu Chopra, Sushil Chandra Mahapatra, Veena Agrawal
Glioblastoma has been reckoned as the prime cause of death due to brain tumours, being most invasive and lethal. Available treatment options, i.e. surgery, radiotherapy, chemotherapy and targeted therapies are not effective in improving prognosis, so an alternate therapy is insistent. Plant based drugs are efficient due to their synergistic action, multi-targeted approach and least side effects. Present investigation reports the strong anti-tumorous potential of Nardostachys jatamansi rhizome extract (NJRE) on U87 MG glioblastoma cells...
October 19, 2016: Current Cancer Drug Targets
Matteo Di Nardo, Graeme MacLaren, Marco Marano, Corrado Cecchetti, Paola Bernaschi, Antonio Amodeo
Extracorporeal life support (ECLS) is an important device in the management of children with severe refractory cardiac and or pulmonary failure. Actually, two forms of ECLS are available for neonates and children: extracorporeal membrane oxygenation (ECMO) and use of a ventricular assist device (VAD). Both these techniques have their own advantages and disadvantages. The intra-aortic balloon pump is another ECLS device that has been successfully used in larger children, adolescents, and adults, but has found limited applicability in smaller children...
2016: Frontiers in Pediatrics
Mitsumasa Hata, Yukihiko Orime, Shinji Wakui, Tetsuya Nakamura, Rei Hinoura, Atsushi Harada, Kenji Akiyama
OBJECTIVE: We assessed the efficacy of distal limited open stenting procedure in octogenarians with distal aortic arch aneurysm. METHODS: During the last 5 years, 24 patients underwent distal limited open stenting. Mean patient age was 81.6 ± 2.5 years, ranging from 80 to 90 years. The hemicircumference of the anterior surface of the arch around the left common carotid artery was obliquely incised, and a J-Graft Open Stent (Japan Lifeline Co, Ltd, Tokyo, Japan) was inserted into the descending aorta...
September 24, 2016: Journal of Thoracic and Cardiovascular Surgery
Francisca Leal, Martin J Cohn
Limb reduction and loss are hallmarks of snake evolution. Although advanced snakes are completely limbless, basal and intermediate snakes retain pelvic girdles and small rudiments of the femur. Moreover, legs may have re-emerged in extinct snake lineages [1-5], suggesting that the mechanisms of limb development were not completely lost in snakes. Here we report that hindlimb development arrests in python embryos as a result of mutations that abolish essential transcription factor binding sites in the limb-specific enhancer of Sonic hedgehog (SHH)...
October 19, 2016: Current Biology: CB
Jocelyn Y Cheng
INTRODUCTION: Status epilepticus (SE) is a life-threatening neurologic emergency. Despite advances in management, in-hospital mortality remains unchanged. This is partly due to the pharmacoresistance which develops the longer that seizures persist. Therefore, rapid antiseizure medication (ASM) administration may represent a beneficial treatment option. The purpose of this study was to determine: 1) whether in-hospital mortality is reduced with shorter latencies to initial treatment of SE with an ASM (LTSE); and 2) the critical time frame during which LTSE is associated with reduced in-hospital mortality...
November 15, 2016: Journal of the Neurological Sciences
Jonathan Boyd, Alice Han
Deguelin is one of four major naturally occurring rotenoids isolated from root extracts and is best recognized as a NADH: ubiquinone oxidoreductase (complex I) inhibitor, resulting in significant alterations in mitochondrial function. Deguelin has also been implicated as a regulator of apoptosis through signaling pathways, such as the (PI3K)/Akt pathway, as well as an initiator of cell cycle arrest. Consequently, this compound has accrued great interest as a potential chemopreventive and chemotherapeutic. Additionally, deguelin exposure has been linked to Parkinson's disease (PD)...
2016: Advances in Experimental Medicine and Biology
Demetris Yannopoulos, Jason A Bartos, Stephen A George, George Sideris, Sebastian Voicu, Brett Oestreich, Timothy Matsuura, Kadambari Shekar, Jennifer Rees, Tom P Aufderheide
INTRODUCTION: Sodium nitroprusside (SNP) enhanced CPR (SNPeCPR) demonstrates increased vital organ blood flow and survival in multiple porcine models. We developed a new, coronary occlusion/ischemia model of prolonged resuscitation, mimicking the majority of out-of-hospital cardiac arrests presenting with shockable rhythms. HYPOTHESIS: SNPeCPR will increase short term (4-hour) survival compared to standard 2015 Advanced Cardiac Life Support (ACLS) guidelines in an ischemic refractory ventricular fibrillation (VF), prolonged CPR model...
October 19, 2016: Resuscitation
Cho-Ming Chao, Faady Yahya, Alena Moiseenko, Caterina Tiozzo, Amit Shrestha, Negah Ahmadvand, Elie El Agha, Jennifer Quantius, Salma Dilai, Vahid Kheirollahi, Matthew Jones, Jochen Wilhem, Gianni Carraro, Harald Ehrhardt, Klaus-Peter Zimmer, Guillermo Barreto, Katrin Ahlbrecht, Rory E Morty, Susanne Herold, Rosanna G Abellar, Werner Seeger, Ralph Schermuly, Jin-San Zhang, Parviz Minoo, Saverio Bellusci
Inflammation-induced FGF10 protein deficiency is associated with bronchopulmonary dysplasia (BPD), a chronic lung disease of prematurely born infants characterized by arrested alveolar development. So far, experimental evidence for a direct role of FGF10 in lung disease is lacking. Using the hyperoxia-induced neonatal lung injury as a mouse model of BPD, the impact of Fgf10 deficiency in Fgf10(+/-) versus Fgf10(+/+) pups was investigated. In normoxia, no lethality of Fgf10(+/+) or Fgf10(+/-) pups was observed...
October 22, 2016: Journal of Pathology
Pei Ma, Haitao Wang, Lu Han, Wei Jing, Xin Zhou, Zhisu Liu
Small nucleolar RNAs (snoRNAs) as a novel molecular species may have significant and comprehensive influences on the development and progression of hepatocellular carcinoma (HCC). We recently characterized snoRNA transcriptome signatures in HCC tissues by small RNA sequencing and found that small nucleolar RNA 78 (SNORD78) was associated with HCC. However, little is known about the pathological role of SNORD78 in HCC patients. This study aimed to profile SNORD78 expression signature and then to explore the pathogenesis of SNORD78 in HCC...
October 21, 2016: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
N A Nik Muhamad, R Hawari, H Shafie
Aluminium phosphide (ALP) is highly toxic and poisoning can result in high mortality rates. A 26-year-old female who allegedly ingested a toxic dose of ALP presented with vomiting and diarrhoea. She developed cardiac arrest with refractory pulseless ventricular tachycardia. Despite aggressive resuscitation, she succumbed to death seven hours following ingestion. In cases like this, a better outcome can be achieved with early arrival, prompt diagnosis, aggressive resuscitation and intensive monitoring.
August 2016: Medical Journal of Malaysia
Shara I Feld, Sarah E Tevis, Alexander G Cobian, Mark W Craven, Gregory D Kennedy
BACKGROUND: Many studies have evaluated predictors of postoperative complications, yet little is known about the development of multiple complications. The goal of this study was to assess complication timing in cascades of multiple complications and the risk of future complications given a patient's first complication. METHODS: This study includes 30-day, postoperative complications from the American College of Surgeons National Surgical Quality Improvement Program for all patients who underwent major inpatient and outpatient operative procedures from 2005-2013...
October 18, 2016: Surgery
Sarita Panula, Ahmed Reda, Jan-Bernd Stukenborg, Cyril Ramathal, Meena Sukhwani, Halima Albalushi, Daniel Edsgärd, Michiko Nakamura, Olle Söder, Kyle E Orwig, Shinya Yamanaka, Renee A Reijo Pera, Outi Hovatta
The mechanisms underlying human germ cell development are largely unknown, partly due to the scarcity of primordial germ cells and the inaccessibility of the human germline to genetic analysis. Human embryonic stem cells can differentiate to germ cells in vitro and can be genetically modified to study the genetic requirements for germ cell development. Here, we studied NANOS3 and DAZL, which have critical roles in germ cell development in several species, via their over expression in human embryonic stem cells using global transcriptional analysis, in vitro germ cell differentiation, and in vivo germ cell formation assay by xenotransplantation...
2016: PloS One
Bellal Joseph, Kareem Ibraheem, Ansab A Haider, Narong Kulvatunyou, Andrew Tang, Terence O'Keeffe, Zachary M Bauman, Donald J Green, Rifat Latifi, Peter Rhee
BACKGROUND: Resuscitative thoracotomy (RT) has been the standard therapy in patients with acute arrest due to hemorrhagic shock. However, with the development of resuscitative endovascular balloon occlusion of the aorta (REBOA), its role as a potential adjunct to a highly morbid intervention such as RT is being discussed. The aim of this study was to identify patients who most likely would have potentially benefited from REBOA use based on autopsy findings. METHODS: We performed a 4-year retrospective review of all RTs performed at our Level I trauma center...
November 2016: Journal of Trauma and Acute Care Surgery
Yun Liang, Xin He, Xian Li, Xuzhao Zhang, Xiaohong Zhang, Lei Zhang, Xi Qiu, Xiaoying Zhao, Rongzhen Xu
Multiple myeloma (MM) remains incurable despite the development and the use of new agents. In our studies, we found that 4-chlorbenzoyl berbamine (BBMD9), a novel synthetic derivative of berbamine, inhibited the proliferation of MM cells in dose- and time-dependent manners. Flow cytometric (FCM) analysis revealed that MM cells were arrested in the G1 phase and that apoptotic cells increased in a time-dependent manner. Moreover, the BBMD9 treatment downregulated IKKα and IKKβ, inhibited p-IκBα, and blocked p65 nuclear localization...
October 21, 2016: Cancer Investigation
Rui-Li Zhang, Jun-Ping Yang, Li-Xia Peng, Li-Sheng Zheng, Ping Xie, Meng-Yao Wang, Yun Cao, Zhi-Ling Zhang, Fang-Jian Zhou, Chao-Nan Qian, Yong-Xing Bao
Clear cell renal cell carcinoma (ccRCC) is a common pathological subtype of renal cancer. Although the recent application of molecular-targeted agents has modestly improved the prognosis of ccRCC patients, their outcome is still poor. It is therefore important to characterize the molecular and biological mechanisms responsible for the development of ccRCC. Approximately 25% ccRCC patients involves the loss of RNA-binding protein QKI at 6q26, but the role of QKI in ccRCC is unknown. Here, we found that QKI-5 was frequently downregulated in ccRCC patients and its down-regulation was significantly associated with clinical features including T status, M status, and differentiation grade, and poorer patient prognosis...
October 21, 2016: Cell Cycle
Deepak Adhikari, Kiran Busayavalasa, Jingjing Zhang, Mengwen Hu, Sanjiv Risal, Mustafa Bilal Bayazit, Meenakshi Singh, M Kasim Diril, Philipp Kaldis, Kui Liu
A unique feature of female germ cell development in mammals is their remarkably long arrest at the prophase of meiosis I, which lasts up to 50 years in humans. Both dormant and growing oocytes are arrested at prophase I and completely lack the ability to resume meiosis. Here, we show that the prolonged meiotic arrest of female germ cells is largely achieved via the inhibitory phosphorylation of Cdk1 (cyclin-dependent kinase 1). In two mouse models where we have introduced mutant Cdk1(T14AY15F) which cannot be inhibited by phosphorylation (Cdk1AF) in small meiotically incompetent oocytes, the prophase I arrest is interrupted, leading to a premature loss of female germ cells...
October 21, 2016: Cell Research
Gary K Scott, David Chu, Ravneet Kaur, Julia Malato, Daniel E Rothschild, Katya Frazier, Serenella Eppenberger-Castori, Byron Hann, Ben Ho Park, Christopher C Benz
ERα phosphorylation at hinge site S294 (pS294) was recently shown to be essential for ER-dependent gene transcription and mediated by an unknown cyclin-dependent kinase (CDK). This study was undertaken to identify the exact CDK pathway mediating pS294 formation, and to determine if this phosphorylation event occurs with, and can be targeted to treat, the ligand-independent growth of breast cancers expressing endocrine-refractory ESR1 mutations. Using a newly developed anti-pS294 monoclonal antibody, a combination of CDK specific siRNA knockdown studies and a broad panel of CDK selective inhibitors against ligand (E2)-stimulated MCF7 cells, we first identified CDK2 as the primary mediator of pS294 formation and showed that CDK2-selective inhibitors like Dinaciclib, but not CDK4/6 inhibitors like Palbociclib, can selectively prevent pS294 formation and repress ER-dependent gene expression...
October 18, 2016: Oncotarget
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