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https://www.readbyqxmd.com/read/28090280/in-vitro-activity-of-linezolid-in-combination-with-photodynamic-inactivation-against-staphylococcus-aureus-biofilms
#1
Nasim Kashef, Mahboobeh Akbarizare, Mohammad Reza Razzaghi
BACKGROUND: Biofilm infections are a major challenge in medical practice. Bacteria that live in a biofilm phenotype are more resistant to both antimicrobial therapy and host immune responses compared to their planktonic counterparts. So, there is need for new therapeutic strategies to combat these infections. A promising approach [known as Photodynamic Inactivation (PDI)] to kill bacteria growing as biofilms uses light in combination with a photosensitizer to induce a phototoxic reaction which produces reactive oxygen species that can destroy lipids and proteins causing cell death...
January 2017: Avicenna Journal of Medical Biotechnology
https://www.readbyqxmd.com/read/28081025/transdermal-scopolamine-withdrawal-syndrome-case-report-in-the-pediatric-cerebral-palsy-population
#2
Nasim A Chowdhury, Mary Laura Sewatsky, Heakyung Kim
Sialorrhea in children with cerebral palsy (CP) results in aspiration, decreased social integration, and poor quality of life. Management options include transdermal anticholinergics such as the scopolamine patch. A controlled clinical trial has proven botulinum toxin (BTX) injections into the salivary glands are an effective alternative to transdermal anticholinergics with a safer side effect profile. Multiple studies of the injections in diverse populations demonstrate reduction in saliva production with improvement in quality of life and decrease in hospitalization-associated costs...
January 9, 2017: American Journal of Physical Medicine & Rehabilitation
https://www.readbyqxmd.com/read/28067055/chemical-composition-and-antioxidant-activity-of-essential-oil-from-leaves-and-rhizomes-of-curcuma-angustifolia-roxb
#3
Sudipta Jena, Asit Ray, Anwesha Banerjee, Ambika Sahoo, Noohi Nasim, Suprava Sahoo, Basudeba Kar, Jeetendranath Patnaik, Pratap Chandra Panda, Sanghamitra Nayak
The essential oil extracted from rhizome and leaf of Curcuma angustifolia Roxb. (Zingiberaceae) was characterised by gas chromatography-mass spectrometry (GC-MS). The GC-MS analysis revealed the presence of 32 and 35 identified constituents, comprising 92.6% and 92% of total leaf and rhizome oil, respectively. Curzerenone (33.2%), 14-hydroxy-δ-cadinene (18.6%) and γ-eudesmol acetate (7.3%) were the main components in leaf oil. In rhizome oil, curzerenone (72.6%), camphor (3.3%) and germacrone (3.3%) were found to be the major constituents...
January 9, 2017: Natural Product Research
https://www.readbyqxmd.com/read/28066547/holographic-direct-pulsed-laser-writing-of-two-dimensional-nanostructures
#4
Bader AlQattan, Haider Butt, Aydin Sabouri, Ali K Yetisen, Rajib Ahmed, Nasim Mahmoodi
The development of accurate and rapid techniques to produce nanophotonic structures is essential in data storage, sensors, and spectroscopy. Existing bottom-up and top-down approaches to fabricate nanophotonic devices are high cost and time consuming, limiting their mass manufacturing and practical applications. Here, we demonstrate a strategy to rapidly create 25-40 nm thick 1/2D Au-Ti nanopatterns using holographic direct laser interference patterning (DLIP). Pulses of an Nd:YAG laser (1064 nm) in holographic Denisyuk reflection mode were used to create ablative interference fringes...
December 4, 2016: RSC Advances
https://www.readbyqxmd.com/read/28063837/leveraging-lean-principles-in-creating-a-comprehensive-quality-program-the-ucla-health-readmission-reduction-initiative
#5
Nasim Afsar-Manesh, Sarah Lonowski, Aram A Namavar
INTRODUCTION: UCLA Health embarked to transform care by integrating lean methodology in a key clinical project, Readmission Reduction Initiative (RRI). METHODS: The first step focused on assembling a leadership team to articulate system-wide priorities for quality improvement. The lean principle of creating a culture of change and accountability was established by: 1) engaging stakeholders, 2) managing the process with performance accountability, and, 3) delivering patient-centered care...
January 4, 2017: Healthcare
https://www.readbyqxmd.com/read/28063101/elimination-and-molecular-identification-of-endophytic-bacterial-contaminants-during-in-vitro-propagation-of-bambusa-balcooa
#6
Syandan Sinha Ray, Md Nasim Ali, Shibasis Mukherjee, Gautam Chatterjee, Maitreyi Banerjee
Bambusa balcooa is an economically important, multipurpose bamboo species, decidedly used in construction industry. Availability of natural bamboo is depleting very rapidly due to accelerated deforestation and its unrestrained use. The large number and timely supply of saplings are the need of the hour for the restoration of bamboo stands. Micropropagation, being the potent alternative for season independent rapid regeneration, is restricted in bamboo because of endophytic contamination. An in vitro attempt has been taken to overcome the endophytic contamination by using broad spectrum antibiotics as surface sterilant as well as a media component...
February 2017: World Journal of Microbiology & Biotechnology
https://www.readbyqxmd.com/read/28062186/protective-effects-of-atorvastatin-against-morphine-induced-tolerance-and-dependence-in-mice
#7
Nasim Sadat Pajohanfar, Ehsan Mohebbi, Abolfazl Rad, Akbar Pejhan, Samad Nazemi, Bahareh Amin
[Background] In this study, we evaluated the effects of atorvastatin, a lipid-lowering medication on morphine-induced tolerance and dependence in mice. [Methods] Tolerance was induced by subcutaneous administration of morphine (20 mg/kg) to animals, twice a day for 9 days. Atorvastatin was given at the doses of 5, 10 and 20 mg/kg, 30 min before each morphine administration, once daily for 9 days. Hot plate test was employed to assess antinociceptive effect of morphine on days 1, 3, 5, 7 and 9. Dependence was evaluated by naloxone-precipitated withdrawal syndrome...
January 3, 2017: Brain Research
https://www.readbyqxmd.com/read/28059430/attitudes-toward-the-canadian-guideline-for-safe-and-effective-use-of-opioids-for-chronic-non-cancer-pain-a-qualitative-study
#8
Yaping Chang, Kan Lun Zhu, Ivan D Florez, Sung Min Cho, Nasim Zamir, Augustin Toma, Reza Donald Mirza, Gordon H Guyatt, Norman Buckley, Jason W Busse
BACKGROUND: Chronic noncancer pain (CNCP) refers to all pain disorders, not due to cancer, that persist for ≥3 months. The point prevalence of CNCP in the general population of Western countries is between 19 and 33 percent. Opioids are commonly prescribed for CNCP and are associated with both benefits and harms. The Canadian Guideline for Safe and Effective Use of Opioids for CNCP was published in 2010 to provide guidance for optimal opioid prescribing in patients with CNCP. OBJECTIVES: To investigate the attitudes toward, and use of, the Canadian Opioids Guideline among pain physicians...
November 2016: Journal of Opioid Management
https://www.readbyqxmd.com/read/28054268/optimizing-the-phosphorus-use-in-cotton-by-using-csm-cropgro-cotton-model-for-semi-arid-climate-of-vehari-punjab-pakistan
#9
Asad Amin, Wajid Nasim, Muhammad Mubeen, Muhammad Nadeem, Liaqat Ali, Hafiz Mohkum Hammad, Syeda Refat Sultana, Khawar Jabran, M Habib Ur Rehman, Shakeel Ahmad, Muhammad Awais, Atta Rasool, Shah Fahad, Shah Saud, Adnan Noor Shah, Zahid Ihsan, Shahzad Ali, Ali Ahsan Bajwa, Khalid Rehman Hakeem, Asif Ameen, Amanullah, Hafeez Ur Rehman, Fahad Alghabar, Ghulam Hussain Jatoi, Muhammad Akram, Aziz Khan, Faisal Islam, Syed Tahir Ata-Ul-Karim, Muhammad Ishaq Asif Rehmani, Sajid Hussain, Muhammad Razaq, Amin Fathi
Crop nutrient management is an essential component of any cropping system. With increasing concerns over environmental protection, improvement in fertilizer use efficiencies has become a prime goal in global agriculture system. Phosphorus (P) is one of the most important nutrients, and strategies are required to optimize its use in important arable crops like cotton (Gossypium hirsutum L.) that has great significance. Sustainable P use in crop production could significantly avoid environmental hazards resulting from over-P fertilization...
January 4, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28054200/the-functions-of-the-multi-tasking-pfh1-pif1-helicase
#10
REVIEW
Nasim Sabouri
Approximately, 1% of the genes in eukaryotic genomes encode for helicases, which make the number of helicases expressed in the cell considerably high. Helicases are motor proteins that participate in many central aspects of the nuclear and mitochondrial genomes, and based on their helicase motif conservation, they are divided into different helicase families. The Pif1 family of helicases is an evolutionarily conserved helicase family that is associated with familial breast cancer in humans. The Schizosaccharomyces pombe Pfh1 helicase belongs to the Pif1 helicase family and is a multi-tasking helicase that is important for replication fork progression through natural fork barriers, for G-quadruplex unwinding, and for Okazaki fragment maturation, and these activities are potentially shared by the human Pif1 helicase...
January 4, 2017: Current Genetics
https://www.readbyqxmd.com/read/28042540/melissa-officinalis-acidic-fraction-protects-cultured-cerebellar-granule-neurons-against-beta-amyloid-induced-apoptosis-and-oxidative-stress
#11
Maliheh Soodi, Abolfazl Dashti, Homa Hajimehdipoor, Shole Akbari, Nasim Ataei
OBJECTIVE: Extracellular deposition of the beta-amyloid (Aβ) peptide, which is the main finding in the pathophysiology of Alzheimer's disease (AD), leads to oxidative damage and apoptosis in neurons. Melissa officinalis (M. officinalis) is a medicinal plant from the Lamiaceae family that has neuroprotective activity. In the present study we have investigated the protective effect of the acidic fraction of M. officinalis on Aβ-induced oxidative stress and apoptosis in cultured cerebellar granule neurons (CGN)...
2017: Cell Journal
https://www.readbyqxmd.com/read/28033725/untypeable-hepatitis-c-virus-subtypes-in-pakistan-a-neglected-section
#12
Abdul Waheed Khan, Zeeshan Nasim, Fazli Zahir, Shahid Ali, Abid Ali, Aqib Iqbal, Iqbal Munir
Diagnostically untypeable subtypes contribute a considerable percent of hepatitis C virus (HCV) subtypes in Pakistan. In the present study, chronically infected HCV patients with known viremia were subjected to HCV genotyping. Among the total retrieved samples, 92.7% (64/69) were found typeable while 7.24% (5/69) were diagnostically untypeable. In conclusion, the presence of large number of untypeable HCV subtypes emphasizes the need of an updated type-specific genotyping assay and consideration of primers for proportionally rare subtypes to minimize the number of untypeable HCV subtypes...
December 2016: Acta Microbiologica et Immunologica Hungarica
https://www.readbyqxmd.com/read/28029296/characterization-of-kewda-volatile-components-by-comprehensive-two-dimensional-gas-chromatography-time-of-flight-mass-spectrometry
#13
Noohi Nasim, Asit Ray, Subhashree Singh, Sudipta Jena, Ambika Sahoo, Basudeba Kar, I Sriram Sandeep, Sujata Mohanty, Sanghamitra Nayak
Kewda (Pandanus fascicularis Lam.) is a well known medicinal and aromatic plant. The paper aims to precisely characterize volatile constituents present in Kewda flower oil using comprehensive two-dimensional gas chromatography coupled to time of flight mass spectrometry (GCxGC-TOFMS). A total of 159 components were identified due to enhanced chromatographic separation and mass spectral deconvolution of GCxGC-TOFMS. On the basis of its chemical structure, the identified compounds were grouped into hydrocarbons, alcohols, ethers, ketones, esters, nitrogen compounds, aldehydes, acids, lactones, halides and sulfur containing compounds...
April 2017: Natural Product Research
https://www.readbyqxmd.com/read/28027821/entrococcus-faecalis-elimination-in-root-canals-using-silver-nanoparticles-photodynamic-therapy-diode-laser-or-laser-activated-nanoparticles-an-in%C3%A2-vitro-study
#14
Farzaneh Afkhami, Saba Akbari, Nasim Chiniforush
INTRODUCTION: The aim of this study was to compare the efficacy of silver nanoparticles (AgNPs), an 810-nm diode laser (DL), conventional photodynamic therapy (PDT) with the use of indocyanine green (ICG) photosensitizer, and modified PDT with the use of AgNPs for the disinfection of root canals inoculated with Enterococcus faecalis. METHODS: The root canals of 65 extracted human single-rooted teeth were prepared, and E. faecalis was incubated in the root canals for 4 weeks...
December 24, 2016: Journal of Endodontics
https://www.readbyqxmd.com/read/28024370/encapsulation-of-homogeneous-catalysts-in-porous-polymer-nanocapsules-produces-fast-acting-selective-nanoreactors
#15
Sergey A Dergunov, Alibek T Khabiyev, Sergey N Shmakov, Mariya D Kim, Nasim Ehterami, Mary Clare Weiss, Vladimir B Birman, Eugene Pinkhassik
Nanoreactors were created by entrapping homogeneous catalysts in hollow nanocapsules with 200 nm diameter and semipermeable nanometer-thin shells. The capsules were produced by the polymerization of hydrophobic monomers in the hydrophobic interior of the bilayers of self-assembled surfactant vesicles. Controlled nanopores in the shells of nanocapsules ensured long-term retention of the catalysts coupled with the rapid flow of substrates and products in and out of nanocapsules. The study evaluated the effect of encapsulation on the catalytic activity and stability of five different catalysts...
December 27, 2016: ACS Nano
https://www.readbyqxmd.com/read/28018597/associations-between-unhealthy-dieting-behaviors-and-tobacco-use-among-adolescents
#16
Megan E Sutter, Aashir Nasim, Susan Veldheer, Caroline O Cobb
BACKGROUND: Cigarette smoking is an important risk factor for unhealthy dieting behaviors (UDBs) in youth. The role of alternative tobacco products and UDB engagement has yet to be examined empirically despite concerning trends in use. This study aimed to examine UDB prevalence in a U.S. geographic region-specific adolescent sample and associations with a variety of tobacco use behaviors and perceptions. METHODS: Weighted data from the 2013 Virginia Youth Survey were analyzed (n = 6903)...
2016: Journal of Eating Disorders
https://www.readbyqxmd.com/read/28006747/role-of-protease-and-protease-inhibitors-in-cancer-pathogenesis-and-treatment
#17
REVIEW
Ali Eatemadi, Hammed T Aiyelabegan, Babak Negahdari, Mohammad Ali Mazlomi, Hadis Daraee, Nasim Daraee, Razieh Eatemadi, Esmaeil Sadroddiny
Cancer is the second cause of death in 2015, and it has been estimated to surpass heart diseases as the leading cause of death in the next few years. Several mechanisms are involved in cancer pathogenesis. Studies have indicated that proteases are also implicated in tumor growth and progression which is highly dependent on nutrient and oxygen supply. On the other hand, protease inhibitors could be considered as a potent strategy in cancer therapy. On the basis of the type of the key amino acid in the active site of the protease and the mechanism of peptide bond cleavage, proteases can be classified into six groups: cysteine, serine, threonine, glutamic acid, aspartate proteases, as well as matrix metalloproteases...
December 19, 2016: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28006712/effect-of-annealing-on-the-mechanical-properties-and-the-degradation-of-electrospun-polydioxanone-filaments
#18
Roxanna E Abhari, Pierre-Alexis Mouthuy, Nasim Zargar, Cameron Brown, Andrew Carr
Annealing, or heat treatment, has traditionally been used as a treatment to improve the strength and stiffness of electrospun materials. Understanding the extent to which annealing can improve the mechanical properties and alter the degradation rate of electrospun polydioxanone filaments could influence the range of its potential clinical applications. In this study, we investigated the effect of annealing electrospun polydioxanone filaments at varying times and temperatures and subsequently subjecting them to in vitro degradation in phosphate buffer saline for up to 6 weeks...
December 15, 2016: Journal of the Mechanical Behavior of Biomedical Materials
https://www.readbyqxmd.com/read/27993599/cd73-specific-sirna-loaded-chitosan-lactate-nanoparticles-potentiate-the-antitumor-effect-of-a-dendritic-cell-vaccine-in-4t1-breast-cancer-bearing-mice
#19
Farhad Jadidi-Niaragh, Fatemeh Atyabi, Ali Rastegari, Nasim Kheshtchin, Samaneh Arab, Hadi Hassannia, Maryam Ajami, Zahra Mirsanei, Sima Habibi, Farimah Masoumi, Farshid Noorbakhsh, Fazel Shokri, Jamshid Hadjati
The efficacy of conventional anti-tumor immunotherapeutic approaches is markedly affected by the immunosuppressive microenvironment of tumor. Since adenosine is one of the main orchestra leaders in immunosuppression symphony of tumor, targeting its producing molecules such as CD73 can help to achieve a better clinical outcome following conventional cancer immunotherapeutic approaches. In the present study, we evaluated the efficacy of CD73-specific siRNA-loaded chitosan-lactate nanoparticles (ChLa NPs) in combination with tumor lysate pulsed dendritic cells (DCs) vaccine in treatment of 4T1 (murine derived) breast cancer bearing mice...
December 18, 2016: Journal of Controlled Release: Official Journal of the Controlled Release Society
https://www.readbyqxmd.com/read/27993025/dip-and-drag-lateral-force-spectroscopy-for-measuring-adhesive-forces-between-nanofibers
#20
Grace K Dolan, Gleb E Yakubov, George W Greene, Nasim Amiralian, Pratheep K Annamalai, Darren J Martin, Jason R Stokes
Adhesive interactions between nanofibers strongly influence the mechanical behavior of soft materials composed of fibrous networks. We use atomic force microscopy in lateral force mode to drag a cantilever tip through fibrous networks, and use the measured lateral force response to determine the adhesive forces between fibers of the order of 100 nm diameter. The peaks in lateral force curves are directly related to the detachment energy between two fibers; the data is analyzed using the Jarzynski equality to yield the average adhesion energy of the weakest links...
December 20, 2016: Langmuir: the ACS Journal of Surfaces and Colloids
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