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https://www.readbyqxmd.com/read/28074878/microscopic-evolution-of-laboratory-volcanic-hybrid-earthquakes
#1
H O Ghaffari, W A Griffith, P M Benson
Characterizing the interaction between fluids and microscopic defects is one of the long-standing challenges in understanding a broad range of cracking processes, in part because they are so difficult to study experimentally. We address this issue by reexamining records of emitted acoustic phonon events during rock mechanics experiments under wet and dry conditions. The frequency spectrum of these events provides direct information regarding the state of the system. Such events are typically subdivided into high frequency (HF) and low frequency (LF) events, whereas intermediate "Hybrid" events, have HF onsets followed by LF ringing...
January 11, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28070261/the-effect-of-utilizing-organizational-culture-improvement-model-of-patient-education-on-coronary-artery-bypass-graft-patients-anxiety-and-satisfaction-theory-testing
#2
Mansoureh Ashghali Farahani, Fatemeh Ghaffari, Faezeh Norouzinezhad, Roohangiz Jamshidi Orak
INTRODUCTION: Due to the increasing prevalence of arteriosclerosis and the mortality caused by this disease, Coronary Artery Bypass Graft (CABG) has become one of the most common surgical procedures. Utilization of patient education is approved as an effective solution for increasing patient survival and outcomes of treatment. However, failure to consider different aspects of patient education has turned this goal into an unattainable one. The objective of this research was to determine the effect of utilizing the organizational culture improvement model of patient education on CABG patients' anxiety and satisfaction...
November 2016: Electronic Physician
https://www.readbyqxmd.com/read/28069896/anti-tumor-effects-of-shikonin-derivatives-on-human-medullary-thyroid-carcinoma-cells
#3
Carina Hasenoehrl, Gert Schwach, Nassim Ghaffari-Tabrizy-Wizsy, Robert Fuchs, Nadine Kretschmer, Rudolf Bauerr, Roswitha Pfragner
New treatment options are needed for medullary thyroid carcinoma (MTC), a highly metastasizing neuroendocrine tumor that is resistant to standard radio- and chemotherapy. We show that the following shikonin derivatives inhibit cell proliferation and cell viability of the MTC cell line TT: acetylshikonin, β,β-dimethylacrylshikonin, shikonin and a petroleum ether extract of the roots of Onosma paniculata containing several shikonin derivatives. The unsubstituted shikonin derivative was found to be the most effective compound with an IC50 of 1...
January 9, 2017: Endocrine Connections
https://www.readbyqxmd.com/read/28054503/inhibition-of-telomerase-using-bibr1532-enhances-doxorubicin-induced-apoptosis-in-pre-b-acute-lymphoblastic-leukemia-cells
#4
Davood Bashash, Mohadeseh Zareii, Ava Safaroghli-Azar, Mir Davood Omrani, Seyed H Ghaffari
OBJECTIVES: Interest into targeting telomerase in cancer has increased by the recent disclosure that elevated telomerase activity is associated with disease recurrence and poor outcome in cancers. In addition, cellular acquisition of unlimited replicative potential, which is closely related to the maintenance of telomeres mostly via the reactivation of telomerase, has been shown to confer loss of sensitivity to a wide range of anti-neoplastic agents. METHODS: To evaluate whether telomerase inhibition using non-nucleosidic inhibitor of telomerase BIBR1532 could enhance cytotoxic effect of doxorubicin in acute lymphoblastic leukemia, Nalm-6 pre-B ALL cells were subjected to combination treatment and subsequent cell viability, growth kinetics, caspase-3 activity, and transcriptional alteration of p73, p21, FOXO3a, c-Myc, hTERT, and other apoptosis-related target genes were investigated...
January 5, 2017: Hematology (Amsterdam, Netherlands)
https://www.readbyqxmd.com/read/28052203/dietary-n-6-n-3-fatty-acid-ratios-alter-rumen-fermentation-parameters-and-microbial-populations-in-goats
#5
Mahdi Ebrahimi, Mohamed Ali Rajion, Kazeem Dauda Adeyemi, Saeid Jafari, Mohammad Faseleh Jahromi, Ehsan Oskoueian, Yong Meng Goh, Morteza Hosseini Ghaffari
Revealing the ruminal fermentation patterns and microbial populations as affected by dietary n-6:n-3 PUFA ratio would be useful for further clarifying the role of the rumen in the lipid metabolism of ruminants. The objective of the present study was to investigate the effects of dietary n-6:n-3 PUFA ratios on fermentation characteristics, fatty acid (FA) profiles and microbial populations in the rumen of goats. A total of twenty-one, Boer goats (5 months old; 31.66±1.07kg) were randomly assigned to three dietary treatments with different n-6:n-3 PUFA ratios of 2...
January 4, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/28050331/placental-microrna-expression-is-not-altered-by-maternal-obesity-and-fetal-overgrowth
#6
Neda Ghaffari, Samuel Parry, Michal A Elovitz, Celeste P Durnwald
Objective The epigenetic mechanisms underlying fetal metabolic programming are poorly understood. We studied whether obesity is associated with alterations in placental miRNA expression. Study Design A cross-sectional study was performed, including (1) normal-weight women (BMI 20-24.9 kg/m(2)) and normal-birth-weight (BW) infants (2,700-3,500 g) (n = 20), (2) normal-weight and macrosomic infants (BW ≥ 4,000 g) (n = 10), (3) obese (BMI ≥ 35 kg/m(2)) and normal BW infants (n = 16), and (4) obese and macrosomic infants (n = 10)...
October 2016: American Journal of Perinatology Reports
https://www.readbyqxmd.com/read/28018676/increased-serum-levels-of-tumor-necrosis-factor-alpha-resistin-and-visfatin-in-the-children-with-autism-spectrum-disorders-a-case-control-study
#7
Mohammad Ali Ghaffari, Elham Mousavinejad, Forough Riahi, Masoumeh Mousavinejad, Mohammad Reza Afsharmanesh
Background. Autism spectrum disorders (ASDs) are complex disorders where the pathogenesis is not fully understood. Several proinflammatory and immunoinflammatory disturbances have been observed in the etiology of ASD. There is, however, limited knowledge on variations of adipokines in ASD. The present study aimed to analyze the serum levels of resistin, visfatin, and tumor necrosis factor-alpha (TNF-α) in children with ASD in relation to body weight, gender, and ASD severity level. Method. In total, 30 children with ASD (mean age: 7...
2016: Neurology Research International
https://www.readbyqxmd.com/read/28012617/growth-performance-feeding-behavior-and-selected-blood-metabolites-of-holstein-dairy-calves-fed-restricted-amounts-of-milk-no-interactions-between-sources-of-finely-ground-grain-and-forage-provision
#8
M Mirzaei, M Khorvash, G R Ghorbani, M Kazemi-Bonchenari, M H Ghaffari
The objective of this study was to investigate the effects of grain sources and forage provision on growth performance, blood metabolites, and feeding behaviors of dairy calves. Sixty 3-d-old Holstein dairy calves (42.2 ± 2.5 kg of body weight) were used in a 2 × 3 factorial arrangement with the factors being grain sources (barley and corn) and forage provision (no forage, alfalfa hay, and corn silage). Individually housed calves were randomly assigned (n = 10 calves per treatment: 5 males and 5 females) to 6 treatments: (1) barley grain (BG) without forage supplement, (2) BG with alfalfa hay (AH) supplementation, (3) BG with corn silage (CS) supplementation, (4) corn grain (CG) without forage supplement, (5) CG with AH supplementation, and (6) CG with CS supplementation...
December 21, 2016: Journal of Dairy Science
https://www.readbyqxmd.com/read/28012508/psychological-status-in-children-with-ear-and-nose-foreign-body-insertion
#9
Mehdi Bakhshaee, Paria Hebrani, Majid Shams, Maryam Salehi, Ataollah Ghaffari, Mohsen Rajati
OBJECTIVE: Children with psychological disorders are prone to various unintentional injuries, one of the most common of which is foreign body inserting. In spite of the high incidence, the association is not studied yet. METHODS: This is a case control study in otorhinolaryngology and psychology departments, at a tertiary referral teaching hospital. One hundred five children (2-12 years old) who were referred for removal of foreign bodies in their ear or nose over a period of one year were selected for the study...
January 2017: International Journal of Pediatric Otorhinolaryngology
https://www.readbyqxmd.com/read/28008285/development-and-validation-of-evaluation-tools-of-nursing-students-clinical-pharmacology-unit
#10
Nasrin Navabi, Fatemeh Ghaffari, Abbas Shamsalinia, Safieh Faghani
INTRODUCTION: The need for valid, reliable, and objective tools has always been emphasized in studies related to the clinical assessment of nursing students. The aims of this study were to develop and assess the validity and reliability of the tools used to evaluate the clinical pharmacology unit. METHODS: This study was a methodological one, conducted in 2016. An item pool was developed based on the literature review and personal interviews with faculty members...
2016: Drug, Healthcare and Patient Safety
https://www.readbyqxmd.com/read/28000929/in-vitro-reprotoxicity-of-carboxyl-functionalised-single-and-multi-walled-carbon-nanotubes-on-human-spermatozoa
#11
Z Aminzadeh, M Jamalan, L Chupani, H Lenjannezhadian, M A Ghaffari, M Aberomand, M Zeinali
Reproductive toxicity of carboxyl-functionalised carbon nanotubes (CNT-COOH), as the most commonly used form of water-soluble CNTs, is not clearly studied. The aim of this study was to investigate in vitro toxicity of carboxylated single-walled and multi-walled CNTs (SWCNT-COOH and MWCNT-COOH) against human spermatozoa. Sperm cells from healthy donors were incubated with 0.1-100 μg/ml of SWCNT-COOH or MWCNT-COOH at 37°C for up to 5 hr. Viability of sperm cells was assessed using MTT test, and sperm motility was evaluated following World Health Organization guideline...
December 21, 2016: Andrologia
https://www.readbyqxmd.com/read/27994057/foxo3-is-essential-for-protecting-hematopoietic-stem-and-progenitor-cells-from-oxidative-dna-damage
#12
Carolina L Bigarella, Jianfeng Li, Pauline Rimmelé, Raymond Liang, Robert W Sobol, Saghi Ghaffari
Accumulation of damaged DNA in hematopoietic stem cells (HSC) is associated with chromosomal abnormalities, genomic instability and HSC aging, and might promote hematological malignancies with age. Despite this importance, the regulatory pathways implicated in the HSC DNA damage response have not been fully elucidated. One of the sources of DNA damage is reactive oxygen species (ROS) generated by both exogenous and endogenous insults. Balancing ROS levels in HSC requires FOXO3, which is an essential transcription factor for HSC maintenance implicated in HSC aging...
December 19, 2016: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/27988019/nano-carbohydrates-synthesis-and-application-in-genetics-biotechnology-and-medicine
#13
REVIEW
Ali Jebali, Elham Khajeh Nayeri, Sima Roohana, Shiva Aghaei, Maede Ghaffari, Karim Daliri, Garcia Fuente
Combining nanoparticles with carbohydrate has triggered an exponential growth of research activities for the design of novel functional bionanomaterials, nano-carbohydrates. Recent advances in versatile synthesis of glycosylated nanoparticles have paved the way towards diverse biomedical applications. The accessibility of a wide variety of these structured nanosystems, in terms of shape, size, and organization around stable nanoparticles, has readily contributed to their development and application in nanomedicine...
November 9, 2016: Advances in Colloid and Interface Science
https://www.readbyqxmd.com/read/27987774/effect-of-high-energy-electron-beam-10mev-on-specific-heat-capacity-of-low-density-polyethylene-hydroxyapatite-nano-composite
#14
Z Soltani, F Ziaie, M Ghaffari, A M Beigzadeh
In the present work, thermal properties of low density polyethylene (LDPE) and its nano composites are investigated. For this purpose LDPE reinforced with different weight percents of hydroxyapatite (HAP) powder which was synthesized via hydrolysis method are produced. The samples were irradiated with 10MeV electron beam at doses of 75 to 250kGy. Specific heat capacity measurement have been carried out at different temperatures, i.e. 25, 50, 75 and 100°C using modulated temperature differential scanning calorimetry (MTDSC) apparatus and the effect of three parameters include of temperature, irradiation dose and the amount of HAP nano particles as additives on the specific heat capacity of PE/HAP have been investigated precisely...
February 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/27939538/effects-of-forage-provision-to-dairy-calves-on-growth-performance-and-rumen-fermentation-a-meta-analysis-and-meta-regression
#15
M Imani, M Mirzaei, B Baghbanzadeh-Nobari, M H Ghaffari
A meta-analysis of the potential effect of forage provision on growth performance and rumen fermentation of dairy calves was conducted using published data from the literature (1998-2016). Meta-regression was used to evaluate the effects of different forage levels, forage sources, forage offering methods, physical forms of starter, and grain sources on the heterogeneity of the results. We considered 27 studies that reported the effects of forage provision to dairy calves. Estimated effect sizes of forage were calculated on starter feed intake, average daily gain (ADG), feed efficiency (FE), body weight (BW), and rumen fermentation parameters...
December 8, 2016: Journal of Dairy Science
https://www.readbyqxmd.com/read/27931306/idiopathic-cd4-lymphocytopenia
#16
Joel P Brooks, Gisoo Ghaffari
BACKGROUND: Idiopathic CD4 lymphocytopenia (ICL) is a rare disorder of unknown etiology. Diagnostic criteria include a persistent CD4 T-cell lymphopenia with no underlying primary or secondary immune deficiencies and a CD4 T-cell count of 300 cells/mL or 20% total lymphocyte on multiple occasions. OBJECTIVE: To increase awareness of ICL and to provide a review of the clinical characteristics, diagnosis, and management of this disease process. Presently, many of these patients receive prophylactic treatment similar to other T-cell deficient conditions, most notably patients with human immunodeficiency virus (HIV) or acquired immunodeficiency syndrome; however, the same indications may not necessarily apply to this patient population because the T cells are not affected by a virus as in HIV...
November 2016: Allergy and Asthma Proceedings:
https://www.readbyqxmd.com/read/27928594/pulmonary-hypertension-in-rheumatic-mitral-stenosis-revisited
#17
L Pourafkari, S Ghaffari, M Ahmadi, A Tajlil, N Aslanabadi, N D Nader
BACKGROUND: In patients with mitral stenosis (MS), pulmonary hypertension (PH) is a significant contributor to the associated morbidity. We aimed to study factors associated with the presence of significant PH (sPH) and whether incorporating body surface area (BSA) in the mitral valve area (MVA) would improve the predictive value of the latter. METHODS: The medical records of 558 patients with severe MS undergoing percutaneous balloon mitral commissurotomy were evaluated over a period of 8 years...
December 7, 2016: Herz
https://www.readbyqxmd.com/read/27924731/improved-immunogenicity-against-a-her2-neu-derived-peptide-by-employment-of-a-pan-hla-dr-binding-epitope-and-cpg-in-a-balb-c-mice-model
#18
Sahar Tahaghoghi-Hajghorbani, Jalil Tavakkol-Afshari, Mahmoud Reza Jaafari, Haniyeh Ghaffari-Nazari, Elham Masoumi, Seyed Amir Jalali
BACKGROUND: An efficient strategy to improve the immunogenicity of peptide vaccines is the use of a synthetic peptide containing cytotoxic T-lymphocyte (CTL) epitopes with T-helper (Th) inducing-epitopes. OBJECTIVE: Our purpose was to determine the use of human epidermal growth factor receptor-2 (Her2/neu)-specific CTL epitopes plus the pan HLA DR-binding epitope (PADRE) and CpG oligodeoxynucleotides (ODNs) to induce antitumor effects in vaccinated mice. METHOD: Female BALB/c mice were immunized with subcutaneously the different vaccines...
December 6, 2016: Anti-cancer Agents in Medicinal Chemistry
https://www.readbyqxmd.com/read/27913663/resistance-of-dynamin-related-protein-1-oligomers-to-disassembly-impairs-mitophagy-resulting-in-myocardial-inflammation-and-heart-failure
#19
Thomas J Cahill, Vincenzo Leo, Matthew Kelly, Alexander Stockenhuber, Nolan W Kennedy, Leyuan Bao, Grazia M Cereghetti, Andrew R Harper, Gabor Czibik, Chunyan Liao, Mohammed Bellahcene, Violetta Steeples, Sahar Ghaffari, Arash Yavari, Alice Mayer, Joanna Poulton, David J P Ferguson, Luca Scorrano, Nishani T Hettiarachchi, Chris Peers, John Boyle, R Blake Hill, Alison Simmons, Hugh Watkins, T Neil Dear, Houman Ashrafian
No abstract text is available yet for this article.
December 2, 2016: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/27911288/the-effect-of-base-transceiver-station-waves-on-some-immunological-and-hematological-factors-in-exposed-persons
#20
Mohammad Taheri, Ghodratollah Roshanaei, Jamileh Ghaffari, Samira Rahimnejad, Behzad Nazel Khosroshahi, Mohsen Aliabadi, Mohammad Mahdi Eftekharian
BACKGROUND: Since the number of mobile subscribers has significantly increased in recent years, the installation and deployment of Base Transceiver Station (BTS) antennas sending and receiving signals has become common and inevitable in different regions. OBJECTIVE: In this study, we have tried to evaluate the effect of the waves on some immunological and hematological parameters in exposed individuals. In this study, the exposed and non-exposed individuals were used as the test and control groups, respectively...
November 25, 2016: Human Antibodies
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