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https://www.readbyqxmd.com/read/28429528/use-of-adenosine-to-shorten-the-post-ablation-waiting-period-for-cavotricuspid-isthmus-dependent-atrial-flutter
#1
Gustavo Morales, Yousef H Darrat, Nicolas Lellouche, Sun Moon Kim, Muhammad Butt, Katrina Bidwell, William Lippert, Gbolahan Ogunbayo, David Hamon, Luigi Di Biase, Andrea Natale, Kevin Parrott, Claude S Elayi
BACKGROUND: Dormant conduction unmasked by adenosine predicts clinical recurrences of cavotricuspid isthmus (CTI) dependent atrial flutter following catheter ablation. Conventional practice involves a waiting period of 20 to 30 minutes after achievement of a bidirectional line of block (BDB) to monitor for recovery of conduction. OBJECTIVE: Assess whether abolition of dormant conduction with adenosine immediately after CTI ablation and BDB can predict the lack of CTI conduction recovery during the following 30 minutes...
April 21, 2017: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/28427563/neuroinflammation-in-alzheimer-s-disease-the-preventive-and-therapeutic-potential-of-polyphenolic-nutraceuticals
#2
Yousef Sawikr, Nagendra Sastry Yarla, Ilaria Peluso, Mohammad Amjad Kamal, Gjumrakch Aliev, Anupam Bishayee
Brain inflammation, characterized by increased microglia and astrocyte activation, increases during aging and is a key feature of neurodegenerative diseases, such as Alzheimer's disease (AD). In AD, neuronal death and synaptic impairment, induced by amyloid-β (Aβ) peptide, are at least in part mediated by microglia and astrocyte activation. Glial activation results in the sustained production of proinflammatory cytokines and reactive oxygen species, giving rise to a chronic inflammatory process. Astrocytes are the most abundant glial cells in the central nervous system and are involved in the neuroinflammation...
2017: Advances in Protein Chemistry and Structural Biology
https://www.readbyqxmd.com/read/28423657/identification-and-characterization-of-rassf1c-pirna-target-genes-in-lung-cancer-cells
#3
Mark E Reeves, Mathew Firek, Abdullaati Jliedi, Yousef G Amaar
RASSF1C up-regulates important genes involved in lung cancer cell growth, including a stem cell self-renewal gene, piwil1. In this article, we report the identification of small noncoding PIWI-interacting RNAs (piRNAs) in lung cancer cells over-expressing RASSF1C. A piRNA microarray screen was performed using RNA isolated from the lung cancer cell line H1299 stably over-expressing RASSF1C and corresponding control. The piRNA microarray screen identified several piRNAs that are regulated by RASSF1C and we have validated the expression of two up-regulated piRNAs (piR-34871 and piR-52200) and two down-regulated piRNAs (piR-35127 and piR-46545) in lung cancer cells with silenced and over-expressed RASSF1C using RT-PCR...
March 7, 2017: Oncotarget
https://www.readbyqxmd.com/read/28422552/rapid-assessment-of-avoidable-blindness-and-diabetic-retinopathy-in-gilan-province-iran
#4
Marzieh Katibeh, Hassan Behboudi, Siamak Moradian, Yousef Alizadeh, Ramin Beiranvand, Hamideh Sabbaghi, Hamid Ahmadieh
PURPOSE: To conduct an assessment of avoidable blindness and diabetic retinopathy (DR) in Gilan, 2014. METHODS: A cross-sectional population-based survey was performed on a representative sample of urban and rural individuals aged ≥50 years of the province. Blindness was defined as presenting visual acuity (PVA) <3/60 in the better eye. Moderate visual impairment (MVI) and severe visual impairment (SVI) were defined as 6/60 ≤ PVA <6/18 and 3/60 ≤ PVA <6/60 in the better eye, respectively...
April 19, 2017: Ophthalmic Epidemiology
https://www.readbyqxmd.com/read/28419161/unidentifiable-by-morphology-dna-barcoding-of-plant-material-in-local-markets-in-iran
#5
Abdolbaset Ghorbani, Yousef Saeedi, Hugo J de Boer
Local markets provide a rapid insight into the medicinal plants growing in a region as well as local traditional health concerns. Identification of market plant material can be challenging as plants are often sold in dried or processed forms. In this study, three approaches of DNA barcoding-based molecular identification of market samples are evaluated, two objective sequence matching approaches and an integrative approach that coalesces sequence matching with a priori and a posteriori data from other markers, morphology, ethnoclassification and species distribution...
2017: PloS One
https://www.readbyqxmd.com/read/28415346/synchronization-of-oscillators-through-time-shifted-common-inputs
#6
Ehsan Bolhasani, Yousef Azizi, Alireza Valizadeh, Matjaž Perc
Shared upstream dynamical processes are frequently the source of common inputs in various physical and biological systems. However, due to finite signal transmission speeds and differences in the distance to the source, time shifts between otherwise common inputs are unavoidable. Since common inputs can be a source of correlation between the elements of multi-unit dynamical systems, regardless of whether these elements are directly connected with one another or not, it is of importance to understand their impact on synchronization...
March 2017: Physical Review. E
https://www.readbyqxmd.com/read/28414989/role-of-cortical-alpha-2-adrenoceptors-in-alcohol-withdrawal-induced-depression-and-tricyclic-antidepressants
#7
Bruk Getachew, Sheketha R Hauser, Antonei B Csoka, Robert E Taylor, Yousef Tizabi
INTRODUCTION: Although a role for alpha-2 adrenoceptors (alpha-2 ARs) in alcohol use disorder (AUD) and depression is suggested, very little information on a direct interaction between alcohol and these receptors is available. METHODS: In this study adult female Wistar and Wistar-Kyoto (WKY) rats, a putative animal model of depression, were exposed to alcohol vapor 3h daily for 10days (blood alcohol concentration ∼150mg%) followed by daily injection of 10mg/kg of imipramine (IMP, a selective norepinephrine NE/serotonin reuptake inhibitor) or nomifensine (NOMI, a selective NE/dopamine reuptake inhibitor)...
April 4, 2017: Drug and Alcohol Dependence
https://www.readbyqxmd.com/read/28410618/liquid-biopsy-a-step-forward-towards-precision-medicine-in-urologic-malignancies
#8
REVIEW
Ashley Di Meo, Jenni Bartlett, Yufeng Cheng, Maria D Pasic, George M Yousef
There is a growing trend towards exploring the use of a minimally invasive "liquid biopsy" to identify biomarkers in a number of cancers, including urologic malignancies. Multiple aspects can be assessed in circulating cell-free DNA, including cell-free DNA levels, integrity, methylation and mutations. Other prospective liquid biopsy markers include circulating tumor cells, circulating RNAs (miRNA, lncRNAs and mRNAs), cell-free proteins, peptides and exosomes have also emerged as non-invasive cancer biomarkers...
April 14, 2017: Molecular Cancer
https://www.readbyqxmd.com/read/28409763/work-related-musculoskeletal-disorders-among-jordanian-dental-technicians-prevalence-and-associated-factors
#9
Zeid Al-Hourani, Mohammad Nazzal, Yousef Khader, Khader Al Mhdawi, Abdel Rahim Bibars
BACKGROUND: Dental technology is a profession that requires precise manual skills and dexterous handling of small tools. There is an abundance research on work-related musculoskeletal disorders (WMSDs) affecting dentists, dental hygienists and dental assistants, yet very few articles investigated WMSDs among dental technicians. OBJECTIVES: This study aimed to determine the prevalence of WMSDs among Jordanian dental technicians and their associated factors. METHODS: A cross-sectional design was conducted...
April 12, 2017: Work: a Journal of Prevention, Assessment, and Rehabilitation
https://www.readbyqxmd.com/read/28408440/global-cardiovascular-and-renal-outcomes-of-reduced-gfr
#10
Bernadette Thomas, Kunihiro Matsushita, Kalkidan Hassen Abate, Ziyad Al-Aly, Johan Ärnlöv, Kei Asayama, Robert Atkins, Alaa Badawi, Shoshana H Ballew, Amitava Banerjee, Lars Barregård, Elizabeth Barrett-Connor, Sanjay Basu, Aminu K Bello, Isabela Bensenor, Jaclyn Bergstrom, Boris Bikbov, Christopher Blosser, Hermann Brenner, Juan-Jesus Carrero, Steve Chadban, Massimo Cirillo, Monica Cortinovis, Karen Courville, Lalit Dandona, Rakhi Dandona, Kara Estep, João Fernandes, Florian Fischer, Caroline Fox, Ron T Gansevoort, Philimon N Gona, Orlando M Gutierrez, Samer Hamidi, Sarah Wulf Hanson, Jonathan Himmelfarb, Simerjot K Jassal, Sun Ha Jee, Vivekanand Jha, Aida Jimenez-Corona, Jost B Jonas, Andre Pascal Kengne, Yousef Khader, Young-Ho Khang, Yun Jin Kim, Barbara Klein, Ronald Klein, Yoshihiro Kokubo, Dhaval Kolte, Kristine Lee, Andrew S Levey, Yongmei Li, Paulo Lotufo, Hassan Magdy Abd El Razek, Walter Mendoza, Hirohito Metoki, Yejin Mok, Isao Muraki, Paul M Muntner, Hiroyuki Noda, Takayoshi Ohkubo, Alberto Ortiz, Norberto Perico, Kevan Polkinghorne, Rajaa Al-Radaddi, Giuseppe Remuzzi, Gregory Roth, Dietrich Rothenbacher, Michihiro Satoh, Kai-Uwe Saum, Monika Sawhney, Ben Schöttker, Anoop Shankar, Michael Shlipak, Diego Augusto Santos Silva, Hideaki Toyoshima, Kingsley Ukwaja, Mitsumasa Umesawa, Stein Emil Vollset, David G Warnock, Andrea Werdecker, Kazumasa Yamagishi, Yuichiro Yano, Naohiro Yonemoto, Maysaa El Sayed Zaki, Mohsen Naghavi, Mohammad H Forouzanfar, Christopher J L Murray, Josef Coresh, Theo Vos
The burden of premature death and health loss from ESRD is well described. Less is known regarding the burden of cardiovascular disease attributable to reduced GFR. We estimated the prevalence of reduced GFR categories 3, 4, and 5 (not on RRT) for 188 countries at six time points from 1990 to 2013. Relative risks of cardiovascular outcomes by three categories of reduced GFR were calculated by pooled random effects meta-analysis. Results are presented as deaths for outcomes of cardiovascular disease and ESRD and as disability-adjusted life years for outcomes of cardiovascular disease, GFR categories 3, 4, and 5, and ESRD...
April 13, 2017: Journal of the American Society of Nephrology: JASN
https://www.readbyqxmd.com/read/28406776/gastric-intestinal-metaplasia-an-intermediate-precancerous-lesion-in-the-cascade-of-gastric-carcinogenesis
#11
Tayyab Hamid Malik, Mujtaba Yousef Al Sayahan, Hussain Ali Al Ahmed, Xu Hong
Gastric intestinal metaplasia, an intermediate lesion in the development of intestinal-type gastric cancer, is observed in the milieu of long standing non-atrophic gastritis and atrophic gastritis. Most patients with intestinal metaplasia remain asymptomatic unless cobalamin deficiency occurs secondary to loss of glands (that produce intrinsic factor and acid). Genetic events that predispose to development of gastric intestinal metaplasia remains an enigma. Mechanisms leading to the progression of atrophy to metaplasia still needs to be comprehensively explored...
March 2017: Journal of the College of Physicians and Surgeons—Pakistan: JCPSP
https://www.readbyqxmd.com/read/28402704/endoscopic-papillary-large-balloon-dilation-versus-endoscopic-sphincterotomy-for-retrieval-of-large-choledocholithiasis-a-prospective-randomized-trial
#12
Mohammed A Omar, Mohamed Abdelshafy, Mohamed Yousef Ahmed, Asmaa Gaber Rezk, Abdallah M Taha, Hamdy M Hussein
BACKGROUND: Endoscopic sphincterotomy (ES) is the standard technique for common bile duct (CBD) stone removal. Recently, endoscopic papillary large balloon dilation (EPLBD) has been shown to be a safe and effective technique for the removal of large CBD stone. The aim of this study was to determine the therapeutic outcomes and safety of EPLBD compared with ES for large CBD stone extraction. PATIENTS AND METHODS: One hundred twenty-four patients with large bile duct stones were randomized into two groups, the first group included 61 patients subjected to EPLBD and the second group included 63 patients who underwent ES...
April 12, 2017: Journal of Laparoendoscopic & Advanced Surgical Techniques. Part A
https://www.readbyqxmd.com/read/28397944/prevalence-of-vitamin-d-deficiency-and-its-associated-factors-in-three-regions-of-saudi-arabia
#13
Ibrahim M Kaddam, Adnan M Al-Shaikh, Bahaa A Abaalkhail, Khalid S Asseri, Yousef M Al-Saleh, Ali A Al-Qarni, Ahmed M Al-Shuaibi, Waleed G Tamimi, Abdelmoneim M Mukhtar
To measure prevalence of vitamin D deficiency in Saudi Arabia, unveil the life style, nutritional habits and status, as well as identify the potential risk factors. Method: A school-based survey targeting Saudi school students and employees was conducted during the  period from 2013 to 2014 using multistage cluster random sample in Central, Western and Eastern regions. The prevalence of vitamin D deficiency and difference between various population subgroups were calculated. Logistic regression analysis was used to determine the predictors of potential risk factors...
April 2017: Saudi Medical Journal
https://www.readbyqxmd.com/read/28396727/multimodality-imaging-using-proton-magnetic-resonance-spectroscopic-imaging-and-18-f-fluorodeoxyglucose-positron-emission-tomography-in-local-prostate-cancer
#14
Amita Shukla-Dave, Cecilia Wassberg, Darko Pucar, Heiko Schöder, Debra A Goldman, Yousef Mazaheri, Victor E Reuter, James Eastham, Peter T Scardino, Hedvig Hricak
AIM: To assess the relationship using multimodality imaging between intermediary citrate/choline metabolism as seen on proton magnetic resonance spectroscopic imaging ((1)H-MRSI) and glycolysis as observed on (18)F-fluorodeoxyglucose positron emission tomography/computed tomography ((18)F-FDG-PET/CT) in prostate cancer (PCa) patients. METHODS: The study included 22 patients with local PCa who were referred for endorectal magnetic resonance imaging/(1)H-MRSI (April 2002 to July 2007) and (18)F-FDG-PET/CT and then underwent prostatectomy as primary or salvage treatment...
March 28, 2017: World Journal of Radiology
https://www.readbyqxmd.com/read/28391711/phenolic-content-and-antioxidant-properties-of-seeds-from-different-grape-cultivars-grown-in-iran
#15
Vasigheh Sadat Mirbagheri, Ebrahim Alizadeh, Mostafa Yousef Elahi, Sedigheh Esmaeilzadeh Bahabadi
This study investigated the antioxidant activity and phenolic composition of seed extracts from three grape cultivars grown in Iran. Folin Ciocalteu method was used for the determination of the total phenolic contents and GC-MS was used for the analysis of phenolic compositions. 1,1-diphenyl-2-picrylhydrazyl (DPPH) method was used to evaluate the antioxidant activity. The highest and the lowest total phenolic contents of seed extract were found in the black and green grape, respectively. The content of individual phenols such as Frulic acid, Gentistic acid, Syringic acid, (+) Catechin, Chlorogenic acid and (-)- Epicatchin gallate was cultivars dependent...
April 10, 2017: Natural Product Research
https://www.readbyqxmd.com/read/28387743/strategies-and-methodologies-for-developing-microbial-detoxification-systems-to-mitigate-mycotoxins
#16
REVIEW
Yan Zhu, Yousef I Hassan, Dion Lepp, Suqin Shao, Ting Zhou
Mycotoxins, the secondary metabolites of mycotoxigenic fungi, have been found in almost all agricultural commodities worldwide, causing enormous economic losses in livestock production and severe human health problems. Compared to traditional physical adsorption and chemical reactions, interest in biological detoxification methods that are environmentally sound, safe and highly efficient has seen a significant increase in recent years. However, researchers in this field have been facing tremendous unexpected challenges and are eager to find solutions...
April 7, 2017: Toxins
https://www.readbyqxmd.com/read/28386933/novel-conformation-selective-alpha-synuclein-antibodies-raised-against-different-in-vitro-fibril-forms-show-distinct-patterns-of-lewy-pathology-in-parkinson-s-disease
#17
Dustin J Covell, John L Robinson, Rizwan S Akhtar, Murray Grossman, Daniel Weintraub, Hannah M Bucklin, Rose M Pitkin, Dawn Riddle, Ahmed Yousef, John Q Trojanowski, Virginia M-Y Lee
AIMS: The aim of this study was to test the hypothesis that different conformations of misfolded α-synuclein (α-syn) are present in Parkinson's disease (PD) brain. METHODS: Using two previously characterized conformations of α-syn fibrils, we generated new conformation-selective, α-syn monoclonal antibodies (mAbs). We then interrogated multiple brain regions in a well-characterized autopsy cohort of PD patients (n = 49) with these mAbs, Syn7015 and Syn9029. RESULTS: Syn7015 detects Lewy bodies (LBs) and Lewy neurites (LNs) formed by pathological α-syn in all brain regions tested, and is particularly sensitive to LNs and small Lewy dots, inclusions believed to form early in the disease...
April 7, 2017: Neuropathology and Applied Neurobiology
https://www.readbyqxmd.com/read/28385649/prospects-of-sirna-applications-in-regenerative-medicine
#18
REVIEW
Fatemeh Mottaghitalab, Ali Rastegari, Mehdi Farokhi, Rassoul Dinarvand, Hossein Hosseinkhani, Keng-Liang Ou, Daniel W Pack, Chuanbin Mao, Meshkat Dinarvand, Yousef Fatahi, Fatemeh Atyabi
Small interfering RNA (siRNA) has established its reputation in the field of tissue engineering owing to its ability to silence the proteins that inhibit tissue regeneration. siRNA is capable of regulating cellular behavior during tissue regeneration processes. The concept of using siRNA technology in regenerative medicine derived from its ability to inhibit the expression of target genes involved in defective tissues and the possibility to induce the expression of tissue-inductive factors that improve the tissue regeneration process...
April 4, 2017: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/28384117/smart-phone-usage-and-addiction-among-dental-students-in-saudi-arabia-a-cross-sectional-study
#19
Elluru Venkatesh, Mohammad Yousef Al Jemal, Abdullah Saleh Al Samani
Purpose The main aim of this research is to explore measures of smart phone usage, smart phone addiction, and their associations with demographic and health behavior-related variables among dental students in Saudi Arabia. Methods A Cross sectional study involving sample of 205 dental students from Qaseem Private College were surveyed for smart phone use and addiction using the short version of the Smartphone Addiction Scale for Adolescents (SAS-SV). Results Smart phone addiction was seen in 136 (71.9%) of the 189 students...
April 6, 2017: International Journal of Adolescent Medicine and Health
https://www.readbyqxmd.com/read/28382102/bilateral-triple-negative-invasive-breast-cancer-with-a-brca2-mutation-and-glioblastoma-a-case-report-and-literature-review
#20
Ali Raufi, Mohamed Alsharedi, Yousef Khelfa, Maria Tirona
Breast cancer is the second leading cause of death among women in North America. Glioblastoma is the most common primary malignant central nervous system tumor in adults. The majority of hereditary breast cancers are associated with deleterious mutations in the BRCA1 and BRCA2 genes. Although few case reports have described the incidence of glioblastoma in patients previously diagnosed with breast cancer, any association between BRCA2 mutations and glioblastoma has not been demonstrated to date. Herein, we report a woman who is a carrier of a familial BRCA2 mutation, and was previously diagnosed with triple-negative breast cancer (TNBC) and subsequently with a second primary TNBC and glioblastoma...
March 2017: Journal of Breast Cancer
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