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https://www.readbyqxmd.com/read/28808451/prevalence-of-taurodont-molars-in-a-selected-iranian-adult-population
#1
Davoud Jamshidi, Maryam Tofangchiha, Nasim Jafari Pozve, Mahdis Mohammadpour, Bijan Nouri, Kazem Hosseinzadeh
INTRODUCTION: Taurodontism is an anomaly characterized by elongated crowns and consumedly apical location of the bifurcation area. This study aimed to determine the prevalence of taurodontism in molars based on digital panoramic radiographies in eight cities of Iran. METHODS AND MATERIALS: This descriptive cross-sectional study was conducted on 2360 digital panoramic radiographs taken for different treatment purposes. Demographic information of patients was recorded and radiographs were evaluated for presence of taurodont molars...
2017: Iranian Endodontic Journal
https://www.readbyqxmd.com/read/28805830/in-vitro-and-in-vivo-analysis-of-visible-light-crosslinkable-gelatin-methacryloyl-gelma-hydrogels
#2
Iman Noshadi, Seonki Hong, Kelly E Sullivan, Ehsan Shirzaei Sani, Roberto Portillo-Lara, Ali Tamayol, Su Ryon Shin, Albert E Gao, Whitney L Stoppel, Lauren D Black Iii, Ali Khademhosseini, Nasim Annabi
Photocrosslinkable materials have been frequently used for constructing soft and biomimetic hydrogels for tissue engineering. Although ultraviolet (UV) light is commonly used for photocrosslinking such materials, its use has been associated with several biosafety concerns such as DNA damage, accelerated aging of tissues, and cancer. Here we report an injectable visible light crosslinked gelatin-based hydrogel for myocardium regeneration. Mechanical characterization revealed that the compressive moduli of the engineered hydrogels could be tuned in the range of 5-56 kPa by changing the concentrations of the initiator, co-initiator and co-monomer in the precursor formulation...
August 14, 2017: Biomaterials Science
https://www.readbyqxmd.com/read/28802180/new-episode-of-middle-east-respiratory-syndrome-coronavirus-outbreak-in-saudi-arabia-an-emerging-public-health-threat
#3
Abdul Waheed Khan, Andrew W Taylor-Robinson, Zeeshan Nasim, Fazli Zahir, Abid Ali, Shahid Ali
No abstract text is available yet for this article.
August 9, 2017: Public Health
https://www.readbyqxmd.com/read/28801906/the-tetracycline-responsive-system
#4
Nasim Yousaf, David Gould
Constitutive gene expression is not always the appropriate expression system because the unphysiological levels of expressed protein could be detrimental in studies examining biological roles of proteins, or continued expression may be unnecessary after therapeutic effects have been achieved in gene therapy . We have utilized pharmacologically regulated gene expression systems to achieve fine control of gene expression levels which facilitate research in basic biology and translates to use in experimental gene therapy studies...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28801896/demonstrating-interactions-of-transcription-factors-with-dna-by-electrophoretic-mobility-shift-assay
#5
Nasim Yousaf, David Gould
Confirming the binding of a transcription factor with a particular DNA sequence may be important in characterizing interactions with a synthetic promoter. Electrophoretic mobility shift assay is a powerful approach to demonstrate the specific DNA sequence that is bound by a transcription factor and also to confirm the specific transcription factor involved in the interaction. In this chapter we describe a method we have successfully used to demonstrate interactions of endogenous transcription factors with sequences derived from endogenous and synthetic promoters...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28795045/evaluation-of-sperm-protamine-deficiency-and-apoptosis-in-infertile-men-with-idiopathic-teratozoospermia
#6
Fatemeh Dehghanpour, Nasim Tabibnejad, Farzaneh Fesahat, Fatemeh Yazdinejad, Ali Reza Talebi
OBJECTIVE: Sperm morphology plays an important role in infertility, especially in cases of defects in the heads of spermatozoa. Tapered-head or elongated-head spermatozoa are examples of morphological abnormalities. The aim of this study was to compare the semen parameters, levels of protamine deficiency, and frequency of apoptosis between patients with normozoospermia and those with teratozoospermia with tapered-head spermatozoa. METHODS: Fifty-two semen samples (27 patients with tapered-head sperm and 25 fertile men) were collected and semen analysis was performed according to the World Health Organization criteria for each sample...
June 2017: Clinical and Experimental Reproductive Medicine
https://www.readbyqxmd.com/read/28782184/integrin-mediated-interactions-control-macrophage-polarization-in-3d-hydrogels
#7
Byung-Hyun Cha, Su Ryon Shin, Jeroen Leijten, Yi-Chen Li, Sonali Singh, Julie C Liu, Nasim Annabi, Reza Abdi, Mehmet R Dokmeci, Nihal Engin Vrana, Amir M Ghaemmaghami, Ali Khademhosseini
Adverse immune reactions prevent clinical translation of numerous implantable devices and materials. Although inflammation is an essential part of tissue regeneration, chronic inflammation ultimately leads to implant failure. In particular, macrophage polarity steers the microenvironment toward inflammation or wound healing via the induction of M1 and M2 macrophages, respectively. Here, this paper demonstrates that macrophage polarity within biomaterials can be controlled through integrin-mediated interactions between human monocytic THP-1 cells and collagen-derived matrix...
August 7, 2017: Advanced Healthcare Materials
https://www.readbyqxmd.com/read/28780192/a-novel-hpv-prophylactic-peptide-vaccine-designed-by-immunoinformatics-and-structural-vaccinology-approaches
#8
Manica Negahdaripour, Mahboobeh Eslami, Navid Nezafat, Nasim Hajighahramani, Mohammad Bagher Ghoshoon, Eskandar Shoolian, Ali Dehshahri, Nasrollah Erfani, Mohammad Hossein Morowvat, Younes Ghasemi
Human papillomavirus (HPV)-caused cervical cancer is the fourth common female cancer globally. Despite availability of three effective vaccines in market, development of HPV prophylactic vaccines is still pursued due to affordability issues and type-restricted protection of the marketed vaccines. Investigational second generation prophylactic HPV vaccines are mostly exploiting epitopes from the virus minor capsid protein (L2), which despite many advantages suffer from low immunogenicity, a common problem of epitope vaccines...
August 2, 2017: Infection, Genetics and Evolution
https://www.readbyqxmd.com/read/28777120/multicenter-aids-cohort-study-quantitative-coronary-plaque-progression-study-rationale-and-design
#9
Rine Nakanishi, Wendy S Post, Kazuhiro Osawa, Eranthi Jayawardena, Michael Kim, Nasim Sheidaee, Negin Nezarat, Sina Rahmani, Nicholas Kim, Nicolai Hathiramani, Shriraj Susarla, Frank Palella, Mallory Witt, Michael J Blaha, Todd T Brown, Lawrence Kingsley, Sabina A Haberlen, Christopher Dailing, Matthew J Budoff
BACKGROUND AND AIM: The association of HIV with coronary atherosclerosis has been established; however, the progression of coronary atherosclerosis over time among participants with HIV is not well known. The Multicenter AIDS Cohort Study Quantitative Coronary Plaque Progression Study is a large prospective multicenter study quantifying progression of coronary plaque assessed by serial coronary computed tomography angiography (CTA). PATIENTS AND METHODS: HIV-infected and uninfected men who were enrolled in the Multicenter AIDS Cohort Study Cardiovascular Substudy were eligible to complete a follow-up contrast coronary CTA 3-6 years after baseline...
August 2, 2017: Coronary Artery Disease
https://www.readbyqxmd.com/read/28771251/improved-diagnostic-yield-compared-with-targeted-gene-sequencing-panels-suggests-a-role-for-whole-genome-sequencing-as-a-first-tier-genetic-test
#10
Anath C Lionel, Gregory Costain, Nasim Monfared, Susan Walker, Miriam S Reuter, S Mohsen Hosseini, Bhooma Thiruvahindrapuram, Daniele Merico, Rebekah Jobling, Thomas Nalpathamkalam, Giovanna Pellecchia, Wilson W L Sung, Zhuozhi Wang, Peter Bikangaga, Cyrus Boelman, Melissa T Carter, Dawn Cordeiro, Cheryl Cytrynbaum, Sharon D Dell, Priya Dhir, James J Dowling, Elise Heon, Stacy Hewson, Linda Hiraki, Michal Inbar-Feigenberg, Regan Klatt, Jonathan Kronick, Ronald M Laxer, Christoph Licht, Heather MacDonald, Saadet Mercimek-Andrews, Roberto Mendoza-Londono, Tino Piscione, Rayfel Schneider, Andreas Schulze, Earl Silverman, Komudi Siriwardena, O Carter Snead, Neal Sondheimer, Joanne Sutherland, Ajoy Vincent, Jonathan D Wasserman, Rosanna Weksberg, Cheryl Shuman, Chris Carew, Michael J Szego, Robin Z Hayeems, Raveen Basran, Dimitri J Stavropoulos, Peter N Ray, Sarah Bowdin, M Stephen Meyn, Ronald D Cohn, Stephen W Scherer, Christian R Marshall
PurposeGenetic testing is an integral diagnostic component of pediatric medicine. Standard of care is often a time-consuming stepwise approach involving chromosomal microarray analysis and targeted gene sequencing panels, which can be costly and inconclusive. Whole-genome sequencing (WGS) provides a comprehensive testing platform that has the potential to streamline genetic assessments, but there are limited comparative data to guide its clinical use.MethodsWe prospectively recruited 103 patients from pediatric non-genetic subspecialty clinics, each with a clinical phenotype suggestive of an underlying genetic disorder, and compared the diagnostic yield and coverage of WGS with those of conventional genetic testing...
August 3, 2017: Genetics in Medicine: Official Journal of the American College of Medical Genetics
https://www.readbyqxmd.com/read/28765671/evaluation-of-the-diode-laser-810nm-980-nm-on-color-change-of-teeth-after-external-bleaching
#11
Nazanin Kiomars, Pouneh Azarpour, Mansooreh Mirzaei, Sedighe Sadat Hashemi Kamangar, Mohammad Javad Kharazifard, Nasim Chiniforush
Subject and aim: The aim of this study was to evaluate the efficiency of diode laser-activated bleaching systems for color change of teeth. Materials & Methods: 40 premolars with intact enamel surfaces were selected for five external bleaching protocols (n=8). Two different wavelengths of diode laser (810 and 980 nm) with two different hydrogen peroxide concentrations (30% and 46%) were selected for laser bleaching. Group 1 received bleaching (Heydent- Germany) with a 810 nm diode laser; Group 2 received bleaching (Heydent- Germany) with a 980 nm diode laser; Group 3 received bleaching (laser white*20- Biolase) with a 810 nm diode laser; Group 4 received bleaching (laser white*20- Biolase) with a 980 nm diode laser, with an output power of 1...
December 30, 2016: Laser Therapy
https://www.readbyqxmd.com/read/28765670/microleakage-in-class-v-composite-restorations-after-desensitizing-surface-treatment-with-er-yag-and-co2-lasers
#12
Hamid Reza Mozaffari, Alireza Ehteshami, Farshad Zallaghi, Nasim Chiniforush, Zohreh Moradi
Aims: Glutaraldehyde, CO2 and Er:YAG lasers can be used for treatment of dentin hypersensitivity. However, their application may have adverse effects on the clinical service of restorations. This study aimed to assess the microleakage in composite restorations following surface treatment with Glutaraldehyde desensitizer, CO2 and Er:YAG laser irradiation for treatment of dentin hypersensitivity. Materials and methods: This experimental study was conducted on 60 extracted sound human teeth. Class V cavities were prepared measuring 3×3 mm using a diamond bur...
December 30, 2016: Laser Therapy
https://www.readbyqxmd.com/read/28761938/down-regulation-of-hk7-in-the-sera-of-breast-cancer-and-benign-breast-disease-patients
#13
Samina Ejaz, Faiz-Ul-Hassan Nasim, Muhammad Ashraf, Gulzar Ahmad
INTRODUCTION: Breast cancer is known as a leading cause of cancer-related death among women all over the world. Biomarkers facilitate diagnosis at the earliest possible stage and better prognosis of the disease. Hence, may help to improve the overall survival rate among breast cancer patients. To find a better diagnostic/prognostic marker we evaluated human tissue kallikrein 7 (hK7) as biomarker of breast cancer. hK7 is a secreted serine protease having chymotrypsin like activity. Serum hK7 is known to have aberrant expression in ovarian and prostate cancer but has not been yet studied in breast cancer...
July 2017: Heliyon
https://www.readbyqxmd.com/read/28761199/a-narrative-review-of-acute-adult-poisoning-in-iran
#14
REVIEW
Samira Alinejad, Nasim Zamani, Mohammad Abdollahi, Omid Mehrpour
Poisoning is a frequent cause of referral to medical emergencies and a major health problem around the world, especially in developing countries. We aimed to review the epidemiology and pattern of adult poisoning in Iran in order to facilitate the early diagnosis and management of poisoning. The pattern of poisoning is different in various parts of Iran. Pharmaceutical compounds were the most common cause of poisoning in most parts of Iran. Pesticide-related toxicities were more common in northern agricultural regions, whereas bites and stings were seen more commonly in southern Iran...
July 2017: Iranian Journal of Medical Sciences
https://www.readbyqxmd.com/read/28757880/buccal-fat-pad-as-a-potential-source-of-stem-cells-for-bone-regeneration-a-literature-review
#15
REVIEW
Nasim Salehi-Nik, Maryam Rezai Rad, Lida Kheiri, Pantea Nazeman, Nasser Nadjmi, Arash Khojasteh
Adipose tissues hold great promise in bone tissue engineering since they are available in large quantities as a waste material. The buccal fat pad (BFP) is a specialized adipose tissue that is easy to harvest and contains a rich blood supply, and its harvesting causes low complications for patients. This review focuses on the characteristics and osteogenic capability of stem cells derived from BFP as a valuable cell source for bone tissue engineering. An electronic search was performed on all in vitro and in vivo studies that used stem cells from BFP for the purpose of bone tissue engineering from 2010 until 2016...
2017: Stem Cells International
https://www.readbyqxmd.com/read/28757160/mitochondrial-impairments-contribute-to-spatial-learning-and-memory-dysfunction-induced-by-chronic-tramadol-administration-in-rat-protective-effect-of-physical-exercise
#16
Hajar Mehdizadeh, Jalal Pourahmad, Ghorban Taghizadeh, Nasim Vousooghi, Ali Yoonessi, Parvaneh Naserzadeh, Ladan Behzadfar, Mohammad Reza Rouini, Mohammad Sharifzadeh
Despite the worldwide use of tramadol, few studies have been conducted about its effects on memory and mitochondrial function, and controversial results have been reported. Recently, there has been an increasing interest in physical exercise as a protective approach to neuronal and cognitive impairments. Therefore, the aim of this study was to investigate the effects of physical exercise on spatial learning and memory and brain mitochondrial function in tramadol-treated rats. After completion of 2-week (short-term) and 4-week (long-term) treadmill exercise regimens, male Wistar rats received tramadol (20, 40, 80mg/kg/day) intraperitoneally for 30days...
July 27, 2017: Progress in Neuro-psychopharmacology & Biological Psychiatry
https://www.readbyqxmd.com/read/28754612/differentiation-potential-of-human-cd133-positive-hematopoietic-stem-cells-into-motor-neuron-like-cells-in-vitro
#17
Sepideh Alavi Moghaddam, Behnam Yousefi, Davood Sanooghi, Faezeh Faghihi, Nasim Hayati Roodbari, Nikoo Bana, Mohammad Taghi Joghataei, Paria Pooyan, Babak Arjmand
Spinal cord injuries and motor neuron-related disorders impact on life of many patients around the world. Since pharmacotherapy and surgical approaches were not efficient to regenerate these types of defects; stem cell therapy as a good strategy to restore the lost cells has become the focus of interest among the scientists. Umbilical cord blood CD133(+) hematopoietic stem cells (UCB- CD133(+) HSCs) with self- renewal property and neural lineage differentiation capacity are ethically approved cell candidate for use in regenerative medicine...
July 25, 2017: Journal of Chemical Neuroanatomy
https://www.readbyqxmd.com/read/28741069/microrna-100-shuttled-by-mesenchymal-stem-cell-derived-exosomes-suppresses-in-vitro-angiogenesis-through-modulating-the-mtor-hif-1%C3%AE-vegf-signaling-axis-in-breast-cancer-cells
#18
Katayoon Pakravan, Sadegh Babashah, Majid Sadeghizadeh, Seyed Javad Mowla, Majid Mossahebi-Mohammadi, Farangis Ataei, Nasim Dana, Mohammad Javan
BACKGROUND: Human mesenchymal stem cells (MSCs) have been shown to be involved in the formation and modulation of tumor stroma and in interacting with tumor cells, partly through their secretome. Exosomes are nano-sized intraluminal multi-vesicular bodies secreted by most types of cells and have been found to mediate intercellular communication through the transfer of genetic information via coding and non-coding RNAs to recipient cells. Since exosomes are considered as protective and enriched sources of shuttle microRNAs (miRNAs), we hypothesized that exosomal transfer of miRNAs from MSCs may affect tumor cell behavior, particularly angiogenesis...
July 24, 2017: Cellular Oncology (Dordrecht)
https://www.readbyqxmd.com/read/28740630/safety-and-effect-of-high-dose-allopurinol-in-patients-with-severe-left-ventricular-systolic-dysfunction
#19
Mohammad Mostafa Ansari-Ramandi, Majid Maleki, Azin Alizadehasl, Ahmad Amin, Sepideh Taghavi, Mohammad Javad Alemzadeh-Ansari, Ali Kazem Moussavi, Nasim Naderi
Introduction: Allopurinol used in the treatment of gout has been shown to improve the vascular endothelial dysfunction and reduce the dysfunction of the failing heart. This study was done to evaluate the effect and safety of allopurinol in non-hyperuricemic patients with chronic severe left ventricular (LV) dysfunction. Methods: In this study, 35 consecutive cases of non-hyperuricemic patients with chronic heart failure who had severe LV systolic dysfunction (ejection fraction of less than 35%) and were on optimal guideline directed medical therapies for at least 3 months were included...
2017: Journal of Cardiovascular and Thoracic Research
https://www.readbyqxmd.com/read/28732431/the-efficacy-of-oral-immunotherapy-in-patients-with-cow-s-milk-allergy
#20
Mohsen Ebrahimi, Mohammad Gharagozlou, Ali Mohebbi, Nasim Hafezi, Gholamreza Azizi, Masoud Movahedi
Cow's milk allergy is the most common type of food allergy that decrease the quality of life of patients and their families. The aim of this study was to evaluate the efficacy of oral immunotherapy in patients with cow's milk allergy. 14 patients above 3 years of age with a history of cow's milk allergy confirmed by positive double blind placebo controlled food challenge (DBPCFC) test, presence of serum IgE against cow's milk and positive SPT (skin prick test) were enrolled in this study. During the immunotherapy all patients received increasing amounts of cow's milk during three phases...
June 2017: Iranian Journal of Allergy, Asthma, and Immunology
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