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https://www.readbyqxmd.com/read/28550684/long-noncoding-rna-ccat2-knockdown-suppresses-tumorous-progression-by-sponging-mir-424-in-epithelial-ovarian-vancer
#1
Fu Hua, Chang-Hua Li, Xiao-Gang Chen, Xiao-Ping Liu
Epithelial ovarian cancer (EOC) is the one of most common gynecological malignant tumor with highest mortality, meanwhile, series of lncRNAs have been validated to play vital role in EOC tumorigenesis. Colon cancer-associated transcript 2 (CCAT2) has been verified as oncogenic lncRNA in multiple tumors, however, the role of CCAT2 in EOC genesis is still unclear. The purpose of present study is to probe the function of CCAT2 on EOC. Preliminary experiments found that CCAT2 expression was significantly up-regulated in EOC tissue and cell lines compared to noncancerous tissue and cells...
May 21, 2017: Oncology Research
https://www.readbyqxmd.com/read/28550468/probing-the-contractile-vacuole-as-achilles-heel-of-the-biotrophic-grapevine-pathogen-plasmopara-viticola
#2
Viktoria Tröster, Tabea Setzer, Thomas Hirth, Anna Pecina, Andreas Kortekamp, Peter Nick
The causative agent of Grapevine Downy Mildew, the oomycete Plasmopara viticola, poses a serious threat to viticulture. In the current work, the contractile vacuole of the zoospore is analysed as potential target for novel plant protection strategies. Using a combination of electron microscopy, spinning disc confocal microscopy, and video differential interference contrast microscopy, we have followed the genesis and dynamics of this vacuole required during the search for the stomata, when the non-walled zoospore is exposed to hypotonic conditions...
May 26, 2017: Protoplasma
https://www.readbyqxmd.com/read/28550253/is-sleep-disruption-a-risk-factor-for-alzheimer-s-disease
#3
Arthur Cassa Macedo, Sara Balouch, Naji Tabet
Sleep disturbances are routinely encountered in Alzheimer's disease (AD) and affect about 25-40% of patients in the mild-to-moderate stages of the disease. In many, sleep pathology may represent a symptom of the underlying neurodegeneration. However, a history of sleep disruption occurring years prior to onset of cognitive symptoms could represent a potential risk factor for AD. The aim of the present narrative review was to evaluate current evidence linking sleep disturbances with AD development and to understand the mechanisms that may contribute to this...
May 26, 2017: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/28548636/long-non-coding-rna-uca1-targets-mir-122-to-promote-proliferation-migration-and-invasion-of-glioma-cells
#4
Yang Sun, Jun-Gong Jin, Wei-Yang Mi, Hao Wu, Shi-Rong Zhang, Qiang Meng, Shi-Tao Zhang
Glioma is the most common and lethal intracranial malignant tumor. Long non-coding RNAs (lncRNAs) have been identifiedas pivotal regulators in the tumorigenesis of glioma. However, the role of lncRNA urothelial carcinoma-associated 1 (UCA1) in the gliomagenesis is still unknown. The purpose of this study is to investigate the underlying function of UCA1 on glioma genesis. Results demonstrated that UCA1 was up-regulated in glioma tissue and indicated the poor prognosis. UCA1 knockdown induced by si-UCA1 significantly suppressed the proliferative, migrative and invasive activity of glioma cell lines (U87 and U251)...
May 5, 2017: Oncology Research
https://www.readbyqxmd.com/read/28548218/gene-therapy-for-atrial-fibrillation-in-heart-failure
#5
R Arora
Atrial fibrillation (AF) is the most common arrhythmia and a major cause of morbidity and mortality in an aging population. Unfortunately, current treatments for AF are suboptimal, in large part because the molecular mechanisms underlying AF are not well understood. Recent advances in our understanding of the AF disease state have led to the preclinical development of gene-based therapies that are targeted to key molecular mechanisms involved in the genesis and maintenance of AF.
May 26, 2017: Clinical Pharmacology and Therapeutics
https://www.readbyqxmd.com/read/28543684/multiparity-modifies-contractile-properties-of-pelvic-muscles-affecting-the-genesis-of-vaginal-pressure-in-rabbits
#6
Rhode López-Juárez, René Zempoalteca, Dora Luz Corona-Quintanilla, Ismael Jiménez-Estrada, Francisco Castelán, Margarita Martínez-Gómez
AIMS: To characterize the contractile properties of the bulbospongiosus (Bsm), isquiocavernosus (Ism), and pubococcygeus muscles (Pcm), and their involvement in the genesis of vaginal pressure in nulliparous and multiparous rabbits. METHODS: Age-matched nulliparous and multiparous rabbits were used to record the isometric contractile responses of each muscle as well as the intravaginal pressure evoked by single square electrical pulses and stimulation trains of ascending frequency...
May 24, 2017: Neurourology and Urodynamics
https://www.readbyqxmd.com/read/28543030/defining-epileptogenic-networks-contribution-of-seeg-and-signal-analysis
#7
REVIEW
Fabrice Bartolomei, Stanislas Lagarde, Fabrice Wendling, Aileen McGonigal, Viktor Jirsa, Maxime Guye, Christian Bénar
Epileptogenic networks are defined by the brain regions involved in the production and propagation of epileptic activities. In this review we describe the historical, methodologic, and conceptual bases of this model in the analysis of electrophysiologic intracerebral recordings. In the context of epilepsy surgery, the determination of cerebral regions producing seizures (i.e., the "epileptogenic zone") is a crucial objective. In contrast with a traditional focal vision of focal drug-resistant epilepsies, the concept of epileptogenic networks has been progressively introduced as a model better able to describe the complexity of seizure dynamics and realistically describe the distribution of epileptogenic anomalies in the brain...
May 20, 2017: Epilepsia
https://www.readbyqxmd.com/read/28542442/pedogenetic-processes-in-anthrosols-with-pretic-horizon-amazonian-dark-earth-in-central-amazon-brazil
#8
Rodrigo S Macedo, Wenceslau G Teixeira, Marcelo M Corrêa, Gilvan C Martins, Pablo Vidal-Torrado
Anthrosols known as Amazonian Dark Earth (ADE) have borne witness to the intensification of sedentary patterns and the demographic increase in Central Amazon. As a result, a recurring pattern has been observed of mounds with ADE arising from domestic activities and the disposal of waste. The objective of this research was to demonstrate the relationship of these anthropic activities with pedogenetic formation processes of ADE in the municipality of Iranduba, Brazil. Disturbed and undisturbed soil samples were taken from two areas of ADE (pretic horizon) and from a non-anthropic pedon...
2017: PloS One
https://www.readbyqxmd.com/read/28542357/the-nrf2-transcription-factor-plays-a-dual-role-in-colorectal-cancer-a-systematic-review
#9
C Gonzalez-Donquiles, J Alonso-Molero, T Fernandez-Villa, L Vilorio-Marqués, A J Molina, V Martín
BACKGROUND: Colorectal cancer is one of the most common cancers worldwide, and is influenced by the interplay of various factors, including a very strong genetic component. For instance, incorrect mitochondrial biogenesis is correlated with increased risk of developing colorectal cancer. Thus, it is important to understand the consequences of changes in both the expression and the correct function of the transcription factors that regulate mitochondrial biogenesis, namely NRF2. OBJECTIVES: The main objective of this paper is to characterise the relationship between NRF2 and colorectal cancer by compiling data from an exhaustive literature search...
2017: PloS One
https://www.readbyqxmd.com/read/28540401/white-matter-microstructure-damage-in-tremor-dominant-parkinson-s-disease-patients
#10
ChunYan Luo, Wei Song, Qin Chen, Jing Yang, QiYong Gong, Hui-Fang Shang
PURPOSE: Resting tremor is one of the cardinal motor features of Parkinson's disease (PD). Several lines of evidence suggest resting tremor may have different underlying pathophysiological processes from those of bradykinesia and rigidity. The current study aims to identify white matter microstructural abnormalities associated with resting tremor in PD. METHODS: We recruited 60 patients with PD (30 with tremor-dominant PD and 30 with nontremor-dominant PD) and 26 normal controls...
May 24, 2017: Neuroradiology
https://www.readbyqxmd.com/read/28537252/an-hsp90-co-chaperone-protein-in-yeast-is-functionally-replaced-by-site-specific-posttranslational-modification-in-humans
#11
Abbey D Zuehlke, Michael Reidy, Coney Lin, Paul LaPointe, Sarah Alsomairy, D Joshua Lee, Genesis M Rivera-Marquez, Kristin Beebe, Thomas Prince, Sunmin Lee, Jane B Trepel, Wanping Xu, Jill Johnson, Daniel Masison, Len Neckers
Heat shock protein 90 (Hsp90) is an essential eukaryotic molecular chaperone. To properly chaperone its clientele, Hsp90 proceeds through an ATP-dependent conformational cycle influenced by posttranslational modifications (PTMs) and assisted by a number of co-chaperone proteins. Although Hsp90 conformational changes in solution have been well-studied, regulation of these complex dynamics in cells remains unclear. Phosphorylation of human Hsp90α at the highly conserved tyrosine 627 has previously been reported to reduce client interaction and Aha1 binding...
May 24, 2017: Nature Communications
https://www.readbyqxmd.com/read/28534979/high-expression-of-piwil2-promotes-tumor-cell-proliferation-migration-and-predicts-a-poor-prognosis-in-glioma
#12
Jinquan Li, Li Xu, Zhen Bao, Peng Xu, Hao Chang, Jingjing Wu, Yuanqi Bei, Liuwan Xia, Peizhang Wu, Gang Cui
Piwi-like RNA-mediated gene silencing 2 (PIWIL2), has been reported as an oncogene tightly associated with the genesis and progression of various malignancies. Nevertheless, the function of the PIWIL2 protein in human gliomas has not yet been clarified. In this study, we sought to investigate the clinical significance of PIWIL2 expression and reveal its function in the pathological process of gliomas. Through western blot and immunohistochemical analyses we found that PIWIL2 was overexpressed in glioma tissues...
May 17, 2017: Oncology Reports
https://www.readbyqxmd.com/read/28533477/a-summary-of-relationships-between-alternative-splicing-and-breast-cancer
#13
REVIEW
Zhang Xiping, Wei Qingshan, Zhao Shuai, Yang Hongjian, Ding Xiaowen
Alternative splicing (AS) is the process of combinatorial rearrangement of parts of exons, and/or parts of introns into mature RNA to result in a multitude of transcripts. AS is a biological process through which organisms produce as many protein variants as possible by a limited genetic resource. It plays an important role in growth and development of the organisms. Over the past few years, alternative splicing has been discovered to be critical for genesis and development of malignant tumors, including breast cancer...
May 9, 2017: Oncotarget
https://www.readbyqxmd.com/read/28532907/nerve-atrophy-and-a-small-trigeminal-pontine-angle-in-primary-trigeminal-neuralgia-a-morphometric-mri-study
#14
Jian Cheng, Jinli Meng, Wenke Liu, Heng Zhang, Ding Lei, Xuhui Hui
OBJECTIVE: To prospectively evaluate the morphological and structural changes of trigeminal nerve in patients with trigeminal neuralgia (TN) and to perform a comparison with healthy controls. METHODS: We conducted a prospective case-control study of 60 consective patients diagnosed with TN and 30 sex-and age-matched healthy controls. All subjects underwent high-resolution three-dimensional MRI. The volume and length of the cisternal segment of trigeminal nerve and the angle between the trigeminal nerve and the anterior surface of the pons (trigeminal pontine angle) were measured and compared...
May 19, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28527065/migraine-with-aura-white-matter-lesions-preliminary-data-on-clinical-aspects
#15
Alberto Galli, P Di Fiore, G D'Arrigo, C Uggetti, S Squarza, M Leone, D D'Amico, F Frediani
A few clinic-based magnetic resonance imaging studies report an increased risk of signal abnormalities in migraineurs brain's white matter, especially in migraine with aura subjects. A vascular genesis has been hypnotized and migraine with aura was considered an independent risk factor for stroke. Available data of magnetic resonance imaging alterations are often nonspecific and sometimes controversial. The aim of our study is to investigate migraine with aura patients with standardized brain magnetic resonance imaging to detect and to quantify the presence of white matter lesions and to analyze their relation with clinical data...
May 2017: Neurological Sciences
https://www.readbyqxmd.com/read/28527054/understanding-migraine-as-a-cycling-brain-syndrome-reviewing-the-evidence-from-functional-imaging
#16
Arne May
Due to the clinical picture and also based on early imaging data (Weiller et al. Nat Med 1:658-660, 1995), the brainstem and midbrain structures have been intensely discussed as possible driving or generating structures in migraine. The fact that the brainstem activation persisted after treatment makes it unlikely that this activation was only due to increased activity of the endogenous anti-nociceptive system. It was consequently (and somewhat simplifying) coined the "migraine generator". Since then several studies have focussed on this region when investigating episodic, but also chronic migraine...
May 2017: Neurological Sciences
https://www.readbyqxmd.com/read/28525246/-genesis-of-specific-multisite-medical-intervention-plans-in-the-brussels-capital-region
#17
P Mols, R Schmidt, E Marion, M Luyckx
After the november 19th 2015 Paris terrorist attacks, there was a clear need to update the Medical Intervention Plans (MIP) for Mass Casualty Events (MCE) in the Brussels Capital Region (BCR), because they only offered a response to single-site MCE in a peace-time context. We compared the organisation and the resources of the BCR and cities like Paris and Lille, we discussed with our french colleagues and formed a Multisite Attack Task-force that produced a specific multisite MIP, which had to be put to use only a few days after its creation...
2017: Revue Médicale de Bruxelles
https://www.readbyqxmd.com/read/28524219/-epileptic-encephalopathies
#18
J Ramos-Lizana
According to the International League Against Epilepsy's (ILAE) Commission on Classification and Terminology, the term 'epileptic encephalopathy' reflects the notion that epileptic activity in itself can contribute to the genesis of severe cognitive or behavioural disabilities, beyond what could be expected from the pathology underlying the epilepsy. However, in many cases it is difficult to define the boundary between the relative contribution of the epileptic seizures and the underlying cause in the genesis of cognitive deficits...
May 17, 2017: Revista de Neurologia
https://www.readbyqxmd.com/read/28524151/-etiopathogenesis-of-ocular-ischemic-syndrome
#19
D К Makhkamova
Ocular ischemic syndrome (OIS) is a collection of symptoms of carotid and ophthalmic artery disease of common genesis accompanied by ischemia of eyeball membranes. Specifically, the intraocular blood flow becomes impaired due to inflow reduction or arrest, while the venous outflow remains patent. Causes of OIS include arterial hypertension, atherosclerosis, diabetes, aortoarteritis and other vascular diseases. Clinical features depend on the extent, nature, and site of vascular involvement as well as the concurrent pathology...
2017: Vestnik Oftalmologii
https://www.readbyqxmd.com/read/28523296/a-systematic-review-of-the-possible-carcinogenic-role-of-the-aristolochic-acid
#20
Tivadar Bara, Simona Gurzu, Haruhiko Sugimura, Tivadar Bara, Marius Alexandru Beleaua, Ioan Jung
Aristolochic acid (AA) is a bioactive component of Chinese herbs, dietary supplements, slimming pills and contaminated flour, which is known to induce chronic tubulointerstitial disease. AA is also shown to be involved in the genesis of the upper urinary tract urothelial carcinoma (UTUC) and some other cancers, but its tumorigenic role is far to be understood. We performed a systematic literature review regarding the involvement of AA in malignant processes and molecular pathways of carcinogenesis. Twenty representative papers were selected for this review...
2017: Romanian Journal of Morphology and Embryology, Revue Roumaine de Morphologie et Embryologie
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