keyword
MENU ▼
Read by QxMD icon Read
search

BERA

keyword
https://www.readbyqxmd.com/read/28529377/depression-in-mothers-of-the-mentally-retarded-patients-need-to-look-deeper
#1
Sagar Chandra Bera
No abstract text is available yet for this article.
January 2017: Indian Journal of Psychiatry
https://www.readbyqxmd.com/read/28523326/hashimoto-s-thyroiditis-associated-with-thyroid-adenoma-with-h%C3%A3-rthle-cells-case-report
#2
Mihaela Stanciu, Liana Gabriela Bera, Mihaela Popescu, Florin Grosu, Florina Ligia Popa
Chronic thyroiditis may present a focal lesion, often-palpable abnormality, simulating nodular disease. The number and morphology of the Hürthle cells (HC) vary in the thyroid aspirate. Distinguishing between neoplastic and non-neoplastic HC lesions is difficult when using the fine-needle aspiration cytology (FNAC). We present the case of a 46-year-old female with a large right nodular goiter and hypothyroidism and high titer of anti-thyroid peroxidase antibody (TPO). The thyroid ultrasound showed a large well-defined nodule (more than 6...
2017: Romanian Journal of Morphology and Embryology, Revue Roumaine de Morphologie et Embryologie
https://www.readbyqxmd.com/read/28489112/an-efficient-charge-separation-and-photocurrent-generation-in-the-carbon-dot-zinc-oxide-nanoparticle-composite
#3
Monoj Kumar Barman, Piyali Mitra, Rajesh Bera, Somnath Das, Amitava Pramanik, Amitava Parta
The development of light harvesting systems based on heterostructures for efficient conversion of solar energy to renewable energy is an emerging area of research. Here, we have designed heterostructures by using carbon dots (C-dots) and zinc oxide nanoparticles (ZnO NP) to develop an efficient light harvesting system. Interestingly, the conduction band and the valence band positions of ZnO NP are lower than the LUMO and HOMO positions of C-dots in this type II heterostructure of C dot-ZnO NP, which causes efficient charge separation and photocurrent generation...
May 10, 2017: Nanoscale
https://www.readbyqxmd.com/read/28488658/walker-warburg-syndrome-with-gonadal-dysgenesis-a-rare-association
#4
Goutam Bera, Aniket Halder, Bappa Mandal, Ram Narayan Das, Suchandra Mukherjee, Uttara Chatterjee
No abstract text is available yet for this article.
May 2017: Neurology India
https://www.readbyqxmd.com/read/28487688/gamma-glutamylpolyamine-synthetase-glna3-is-involved-in-the-first-step-of-polyamine-degradation-pathway-in-streptomyces-coelicolor-m145
#5
Sergii Krysenko, Nicole Okoniewski, Andreas Kulik, Arne Matthews, Jan Grimpo, Wolfgang Wohlleben, Agnieszka Bera
Streptomyces coelicolor M145 was shown to be able to grow in the presence of high concentrations of polyamines, such as putrescine, cadaverine, spermidine, or spermine, as a sole nitrogen source. However, hardly anything is known about polyamine utilization and its regulation in streptomycetes. In this study, we demonstrated that only one of the three proteins annotated as glutamine synthetase-like protein, GlnA3 (SCO6962), was involved in the catabolism of polyamines. Transcriptional analysis revealed that the expression of glnA3 was strongly induced by exogenous polyamines and repressed in the presence of ammonium...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28487073/a-minimalistic-tetrapeptide-amphiphile-scaffold-for-transmembrane-pores-with-a-preference-for-sodium
#6
Debajyoti Basak, Sucheta Sridhar, Amal K Bera, Nandita Madhavan
Synthetic channels or pores that are easy to synthesize, stable and cation-selective are extremely attractive for the development of therapeutics and materials. Herein, we report a pore developed from a small tetrapeptide scaffold that shows a preference for sodium over lithium/potassium. The sodium selectivity is attributed to the appended oligoether tail at the C-terminus. A peptide dimer is proposed as the predominant cation-transporting pore. Such pyridine containing stable pores can be potentially utilized for the pH modulated ion transport...
April 27, 2017: Bioorganic & Medicinal Chemistry Letters
https://www.readbyqxmd.com/read/28482582/core-shell-alginate-ghatti-gum-modified-montmorillonite-composite-matrices-for-stomach-specific-flurbiprofen-delivery
#7
Hriday Bera, Sohitha Reddy Ippagunta, Sanoj Kumar, Pavani Vangala
Novel alginate-arabic gum (AG) gel membrane coated alginate-ghatti gum (GG) modified montmorillonite (MMT) composite matrices were developed for intragastric flurbiprofen (FLU) delivery by combining floating and mucoadhesion mechanisms. The clay-biopolymer composite matrices containing FLU as core were accomplished by ionic-gelation technique. Effects of polymer-blend (alginate:GG) ratios and crosslinker (CaCl2) concentrations on drug entrapment efficiency (DEE, %) and cumulative drug release after 8h (Q8h, %) were studied to optimize the core matrices by a 3(2) factorial design...
July 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28471010/oxidative-n-heterocyclic-carbene-catalyzed-dearomatization-of-indoles-to-spirocyclic-indolenines-with-a-quaternary-carbon-stereocenter
#8
Srikrishna Bera, Constantin G Daniliuc, Armido Studer
An efficient method for the asymmetric intramolecular dearomatization of indoles by using oxidative N-heterocyclic carbene catalysis is demonstrated. Valuable optically active spirocyclic indolenines bearing an all-carbon quaternary stereocenter are obtained in excellent yields and with excellent enantioselectivity. The starting indoles are readily prepared and the reactions proceed through an intramolecular indole 3-acylation with an in situ generated acyl azolium intermediate to form a spirocyclic ketone moiety...
May 4, 2017: Angewandte Chemie
https://www.readbyqxmd.com/read/28466949/the-role-of-1-d-finite-size-heisenberg-chains-in-increasing-the-metal-to-insulator-transition-temperature-in-hole-rich-vo2
#9
Raktima Basu, Manas Sardar, Santanu Bera, P Magudapathy, Sandip Dhara
VO2 samples are grown with different oxygen concentrations leading to different monoclinic, M1, and triclinic, T, insulating phases which undergo a first order metal to insulator transition (MIT) followed by a structural phase transition (SPT) to the rutile tetragonal phase. The metal insulator transition temperature (Tc) was found to be increased with increasing native defects. Vanadium vacancy (VV) is envisaged to create local strains in the lattice which prevents twisting of the V-V dimers promoting metastable monoclinic, M2 and T phases at intermediate temperatures...
May 18, 2017: Nanoscale
https://www.readbyqxmd.com/read/28465178/oral-delivery-of-ursolic-acid-loaded-nanostructured-lipid-carrier-coated-with-chitosan-oligosaccharides-development-characterization-in-vitro-and-in-vivo-assessment-for-the-therapy-of-leishmaniasis
#10
Suman Das, Santanu Ghosh, Asit Kumar De, Tanmoy Bera
Visceral leishmaniasis (VL) is a life-threatening disease caused by Leishmania donovani due to uncontrolled parasitisation of liver, spleen, and bone marrow. Ursolic acid (UA), a promising anti-inflammatory, anti-bacterial and anti-diabetic drug used successfully for treatment of ailments. Development of new delivery system is extremely urgent for UA with better efficacy and fewer side effects. The aim of present research work was to formulate and evaluate the potential anti-leishmanial activity of UA loaded N-octyl-chitosan surface decorated nanostructured lipid carrier system (UA-NLC) for delivery to the macrophages for VL...
April 29, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28447449/molecular-simulations-of-mixed-lipid-bilayers-with-sphingomyelin-glycerophospholipids-and-cholesterol
#11
Indrani Bera, Jeffery B Klauda
The highly-diversified composition of lipid bilayers across living cells is crucial for many biological processes. Lipid bilayers mainly consist of phosphatidylcholines (PC), phosphatidylethanolamines (PE), sphingomyelin (SM) and cholesterol, with eukaryotic membranes containing high percentage of sphingomyelin and cholesterol. In this study, we have modeled bilayers with different concentration of PC, PE and SM to understand the changes in bilayer properties with varied SM concentrations. In addition, membrane models with 33% cholesterol have been simulated to understand the influence of cholesterol...
April 27, 2017: Journal of Physical Chemistry. B
https://www.readbyqxmd.com/read/28432372/evaluation-of-the-auditory-pathway-in-traffic-policemen
#12
Vipul Indora, Farah Khaliq, Neelam Vaney
BACKGROUND: Traffic policemen working at heavy traffic junctions are continuously exposed to high level of noise and its health consequences. OBJECTIVE: To assess the hearing pathway in traffic policemen by means of brainstem evoked response audiometry (BERA), mid-latency response (MLR), and slow vertex response (SVR). METHODS: In this observational comparative study, BERA, MLR, and SVR were tested in 35 male traffic policemen with field posting of more than 3 years...
April 2017: International Journal of Occupational and Environmental Medicine
https://www.readbyqxmd.com/read/28426209/channel-assisted-proton-conduction-behavior-in-hydroxyl-rich-lanthanide-based-magnetic-metal-organic-frameworks
#13
Soumava Biswas, Jayita Chakraborty, Vijay Singh Parmar, Siba Prasad Bera, Nirmal Ganguli, Sanjit Konar
Two new lanthanide-based 3D metal-organic frameworks (MOFs), {[Ln(L)(Ox)(H2O)]n·xH2O} [Ln = Gd(3+) and x = 3 (1) and Dy(3+) and x = 1.5 (2); H2L = mucic acid; OxH2 = oxalic acid] showing interesting magnetic properties and channel-mediated proton conduction behavior, are presented here. Single-crystal X-ray structure analysis shows that, in complex 1, the overall structure originates from the mucate-bridged gadolinium-based rectangular metallocycles. The packing view reveals the presence the two types of hydrophilic 1D channels filled with lattice water molecules, which are strongly hydrogen-bonded with coordinated water along the a and b axes, whereas for complex 2, the 3D framework originates from a carboxylate-bridged dysprosium-based criss-cross-type secondary building block...
April 20, 2017: Inorganic Chemistry
https://www.readbyqxmd.com/read/28419759/regulation-of-burkholderia%C3%A2-cenocepacia-biofilm-formation-by-rpon-and-the-c-di-gmp-effector-berb
#14
Mustafa Fazli, Morten Rybtke, Elisabeth Steiner, Elisabeth Weidel, Jens Berthelsen, Julie Groizeleau, Wu Bin, Boo Zhao Zhi, Zhang Yaming, Volkhard Kaever, Michael Givskov, Rolf W Hartmann, Leo Eberl, Tim Tolker-Nielsen
Knowledge about the molecular mechanisms that are involved in the regulation of biofilm formation is essential for the development of biofilm-control measures. It is well established that the nucleotide second messenger cyclic diguanosine monophosphate (c-di-GMP) is a positive regulator of biofilm formation in many bacteria, but more knowledge about c-di-GMP effectors is needed. We provide evidence that c-di-GMP, the alternative sigma factor RpoN (σ54), and the enhancer-binding protein BerB play a role in biofilm formation of Burkholderia cenocepacia by regulating the production of a biofilm-stabilizing exopolysaccharide...
April 16, 2017: MicrobiologyOpen
https://www.readbyqxmd.com/read/28408871/focused-and-sustained-attention-is-modified-by-a-goal-based-rehabilitation-in-parkinsonian-patients
#15
Davide Ferrazzoli, Paola Ortelli, Roberto Maestri, Rossana Bera, Roberto Gargantini, Grazia Palamara, Marianna Zarucchi, Nir Giladi, Giuseppe Frazzitta
Rehabilitation for patients with Parkinson's disease (PD) is based on cognitive strategies that exploit attention. Parkinsonians exhibit impairments in divided attention and interference control. Nevertheless, the effectiveness of specific rehabilitation treatments based on attention suggests that other attentional functions are preserved. Data about attention are conflicting in PD, and it is not clear whether rehabilitative treatments that entail attentional strategies affect attention itself. Reaction times (RTs) represent an instrument to explore attention and investigate whether changes in attentional performances parallel rehabilitation induced-gains...
2017: Frontiers in Behavioral Neuroscience
https://www.readbyqxmd.com/read/28400285/development-and-evaluation-of-a-cedrol-loaded-nanostructured-lipid-carrier-system-for-in-vitro-and-in-vivo-susceptibilities-of-wild-and-drug-resistant-leishmania-donovani-amastigotes
#16
Nabanita Kar, Shreyasi Chakraborty, Asit Kumar De, Santanu Ghosh, Tanmoy Bera
Leishmaniasis is an epidemic in various countries, and the parasite Leishmania donovani is developing resistance against available drugs. In the present study the antileishmanial action of cedrol was evaluated in vitro and in vivo. Activity potentiation was achieved via nanostructured lipid carrier (NLC) complexation of cedrol. Cedrol-loaded NLC was prepared through the hot-melting emulsification-ultrasonication method. The cedrol- NLC prepared did not require the use of any organic solvents. The characterization of NLC-C1 and NLC-C2 revealed that particle size was 46...
April 8, 2017: European Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28394203/dysregulation-of-energy-metabolism-in-multiple-sclerosis-measured-in-vivo-with-diffusion-weighted-spectroscopy
#17
Benedetta Bodini, Francesca Branzoli, Emilie Poirion, Daniel García-Lorenzo, Mélanie Didier, Elisabeth Maillart, Julie Socha, Geraldine Bera, Catherine Lubetzki, Itamar Ronen, Stephane Lehericy, Bruno Stankoff
OBJECTIVE: We employed diffusion-weighted magnetic resonance spectroscopy (DW-MRS), which allows to measure in vivo the diffusion properties of metabolites, to explore the functional neuro-axonal damage and the ongoing energetic dysregulation in multiple sclerosis (MS). METHODS: Twenty-five patients with MS and 18 healthy controls (HC) underwent conventional magnetic resonance imaging (MRI) and DW-MRS. The apparent diffusion coefficient (ADC) of total N-acetyl-aspartate (tNAA) and creatine-phosphocreatine (tCr) were measured in the parietal normal-appearing white matter (NAWM) and in the thalamic grey matter (TGM)...
April 1, 2017: Multiple Sclerosis: Clinical and Laboratory Research
https://www.readbyqxmd.com/read/28393626/in-silico-modelling-and-molecular-dynamics-simulation-studies-of-thiazolidine-based-ptp1b-inhibitors
#18
Manoj Kumar Mahapatra, Krishnendu Bera, Durg Vijay Singh, Rajnish Kumar, Manoj Kumar
Protein tyrosine phosphatase 1B (PTP1B) has been identified as negative regulator of insulin and leptin signalling pathway, hence it can be considered as a new therapeutic target of intervention for the treatment of type2 diabetes. Inhibition of this molecular target takes care of both diabetes and obesity, i.e., diabestiy. In order to get more information on identification and optimisation of lead, pharmacophore modelling, atom-based 3D QSAR, docking and molecular dynamics studies were carried out on a set of ligands containing thiazolidine scaffold...
April 10, 2017: Journal of Biomolecular Structure & Dynamics
https://www.readbyqxmd.com/read/28393438/rhodium-catalyzed-meta-c-h-functionalization-of-arenes
#19
Milan Bera, Soumitra Agasti, Rajdip Chowdhury, Rahul Mondal, Debasis Pal, Debabrata Maiti
Rhodium-catalyzed ortho-C-H functionalization is well known in the literature. Described herein is the Xphos-supported rhodium catalysis of meta-C-H olefination of benzylsulfonic acid and phenyl acetic acid frameworks with the assistance of a para-methoxy-substituted cyano phenol as the directing group. Complete mono-selectivity is observed for both scaffolds. A wide range of olefins and functional groups attached to arene are tolerated in this protocol.
May 2, 2017: Angewandte Chemie
https://www.readbyqxmd.com/read/28388810/hemilability-driven-water-activation-a-ni-ii-catalyst-for-base-free-hydration-of-nitriles-to-amides
#20
Jitendra K Bera, Kuldeep Singh, Abir Sarbajna, Indranil Dutta, Pragati Pandey
A Ni(II) complex 1 containing pyridyl- and hydroxy-functionalized N-heterocyclic carbenes (NHC) is synthesized and its catalytic utility for selective nitrile hydration to amide under base-free condition is evaluated. The title compound exploits hemilabile pyridyl unit to interact with a catalytically relevant water molecule via hydrogen-bonding and promote nucleophilic water attack to the nitrile. A wide variety of nitriles are hydrated to the corresponding amides including pharmaceutical drugs Rufinamide, Rifater and Piracetam...
April 7, 2017: Chemistry: a European Journal
keyword
keyword
115910
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"