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https://www.readbyqxmd.com/read/28099806/melting-behavior-of-zipper-structured-lipopeptides-in-lipid-bilayer
#1
Sijia Wang, Xia Han, Danyang Liu, Mengya Li, Shouhong Xu, Honglai Liu
A zipper-structured lipopeptide is expected to play a role of "intelligent valve" in the lipid bilayer. In this paper, a series of zipper-structured lipopeptides have been designed for preparing thermo-controllable hybrid liposomes. Their conformational transition as a function of temperature in lipid bilayer has been investigated for understanding the influences of molecular structure and bilayer property on bio-function. The melting temperatures Tm of the lipopeptides have been found to depend on their molecular structures...
January 18, 2017: Langmuir: the ACS Journal of Surfaces and Colloids
https://www.readbyqxmd.com/read/28093297/bottom-up-synthesis-of-carbon-nanoparticles-with-higher-doxorubicin-efficacy
#2
Samer Bayda, Mohamad Hadla, Stefano Palazzolo, Vinit Kumar, Isabella Caligiuri, Emmanuele Ambrosi, Enrico Pontoglio, Marco Agostini, Tiziano Tuccinardi, Alvise Benedetti, Pietro Riello, Vincenzo Canzonieri, Giuseppe Corona, Giuseppe Toffoli, Flavio Rizzolio
Nanomedicine requires intelligent and non-toxic nanomaterials for real clinical applications. Carbon materials possess interesting properties but with some limitations due to toxic effects. Interest in carbon nanoparticles (CNPs) is increasing because they are considered green materials with tunable optical properties, overcoming the problem of toxicity associated with quantum dots or nanocrystals, and can be utilized as smart drug delivery systems. Using black tea as a raw material, we synthesized CNPs with a narrow size distribution, tunable optical properties covering visible to deep red absorption, non-toxicity and easy synthesis for large-scale production...
January 13, 2017: Journal of Controlled Release: Official Journal of the Controlled Release Society
https://www.readbyqxmd.com/read/28064050/development-of-a-novel-ph-sensitive-silane-crosslinked-injectable-hydrogel-for-controlled-release-of-neomycin-sulfate
#3
Sehrish Jabeen, Atif Islam, Abdul Ghaffar, Nafisa Gull, Ayesha Hameed, Anbreen Bashir, Tahir Jamil, Tousif Hussain
Silane crosslinked biopolymer based novel pH-responsive hydrogels were fabricated by blending the cationic (chitosan) and anionic (alginate) polymers with poly(vinyl alcohol). Tetraethoxysilane (TEOS) was used, as a crosslinker in different amounts due to its nonhazardous nature, to study its impact on physical and chemical properties of the prepared injectable hydrogels along with the controlled release of drug. The swelling response of the prepared hydrogels was examined in different solvent media which exhibited decreased swelling ratio with increase in the amount of TEOS...
January 4, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28057607/the-value-of-electronic-medical-record-implementation-in-mental-health-care-a-case-study
#4
Sanaz Riahi, Ilan Fischler, Melanie I Stuckey, Philip E Klassen, John Chen
BACKGROUND: Electronic medical records (EMR) have been implemented in many organizations to improve the quality of care. Evidence supporting the value added to a recovery-oriented mental health facility is lacking. OBJECTIVE: The goal of this project was to implement and customize a fully integrated EMR system in a specialized, recovery-oriented mental health care facility. This evaluation examined the outcomes of quality improvement initiatives driven by the EMR to determine the value that the EMR brought to the organization...
January 5, 2017: JMIR Medical Informatics
https://www.readbyqxmd.com/read/28055215/salecan-based-ph-sensitive-hydrogels-for-insulin-delivery
#5
Xiaoliang Qi, Wei Wei, Junjian Li, Gancheng Zuo, Xihao Pan, Ting Su, Jianfa Zhang, Wei Dong
Stimuli-responsive polymeric hydrogels are promising and appealing delivery vehicles for protein/peptide drugs and has made protein/peptide delivery with both dosage- and spatiotemporal-controlled manners possible. Here a series of new Salecan-based pH-sensitive hydrogels were fabricated for controlled insulin delivery via the graft copolymerization reaction between Salecan and 2-acrylamido-2-methyl-1-propanesulfonic acid. In this study, on one hand, Salecan played a key role in modifying the structure and the pore size of the developing hydrogel...
January 5, 2017: Molecular Pharmaceutics
https://www.readbyqxmd.com/read/28038386/cognitive-functions-in-children-exposed-to-antiepileptic-drugs-in-utero-study-in-georgia
#6
Sofia Kasradze, Nino Gogatishvili, Giorgi Lomidze, Tamar Ediberidze, Marine Lazariashvili, Ketevan Khomeriki, Shorena Mamukadze, Mariam Metreveli, Tamar Gagoshidze, Nino Tatishvili, Torbjörn Tomson
OBJECTIVE: The cognitive teratogenicity of antiepileptic drugs (AEDs) has gained increasing attention in the last decade. The objective of the current study was to assess the effects of AED fetal exposure on the cognitive development of children of mothers with epilepsy from Georgia in a controlled study taking into consideration major confounding factors. METHODS: A prospective cohort group was formed from children and mothers registered in the Georgian National AED-Pregnancy Registry...
December 27, 2016: Epilepsy & Behavior: E&B
https://www.readbyqxmd.com/read/27984158/association-of-norepinephrine-transporter-gene-polymorphisms-in-attention-deficit-hyperactivity-disorder-in-korean-population
#7
So-Young Oh, Yong-Ku Kim
We investigated the association of three single nucleotide polymorphisms(SNP) of the norepinephrine transporter (NET) gene SLC6A2, T-182C (rs2242446), A-3081T (rs28386840), and G-1287A (rs5569) with the prevalence of attention-deficit/hyperactivity disorder (ADHD), its clinical severity, and other disease-related characteristics in a Korean population. The genotype, allele frequency and haplotype of 103 ADHD patients and 173 controls were analyzed for these three SNPs. All participants completed the Korean version of the ADHD Rating Scale (K-ARS)...
October 27, 2016: Progress in Neuro-psychopharmacology & Biological Psychiatry
https://www.readbyqxmd.com/read/27928893/outsmarted-by-nooptropics-an-investigation-into-the-thermal-degradation-of-modafinil-modafinic-acid-adrafinil-crl-40-940-and-crl-40-941-in-the-gc-injector-formation-of-1-1-2-2-tetraphenylethane-and-its-tetra-fluoro-analogue
#8
Geraldine Dowling, Pierce V Kavanagh, Brian Talbot, John O'Brien, Gary Hessman, Gavin McLaughlin, Brendan Twamley, Simon D Brandt
2-[(Diphenylmethyl)sulfinyl]acetamide (modafinil) is commonly prescribed for the treatment of narcolepsy. Increasing popularity and off-label use as a cognitive enhancer has resulted in a reputation as an intelligence boosting 'wonder drug'. Common alternatives available from online shops and other retail outlets include 2-[(diphenylmethyl)sulfinyl]-N-hydroxyacetamide (adrafinil), 2-{[bis(4-fluorophenyl)methyl]sulfinyl}acetamide (CRL-40,940), 2-{[bis(4-fluorophenyl)methyl]sulfinyl}-N-hydroxyacetamide (CRL-40,941), and N-methyl-4,4-difluoro-modafinil (modafiendz), respectively...
December 8, 2016: Drug Testing and Analysis
https://www.readbyqxmd.com/read/27887958/on-the-article-findings-questioning-the-involvement-of-sigma-1-receptor-in-the-uptake-of-anisamide-decorated-particles-j-control-release-224-2016-229-238-letter-to-the-editor-1-september-14-2016
#9
LETTER
Tyler J Goodwin, Leaf Huang
No abstract text is available yet for this article.
December 10, 2016: Journal of Controlled Release: Official Journal of the Controlled Release Society
https://www.readbyqxmd.com/read/27868173/-validation-of-tools-for-assessing-the-intelligence-and-the-functional-impairment-of-papiamento-speaking-suspects
#10
M van de Vorst, D J Vinkers, G E Matroos, F Heijtel, H W Hoek
BACKGROUND: Although Antillean suspects in the Netherlands are often diagnosed as being intellectually impaired, there are no validated tests available Papiamento (the native language) for assessing intelligence or functional impairment. AIM: To validate the use of the GIT 2 (Groninger Intelligentie Test 2) and the Barkley Functioning Impairment Scale (BFIS) for Antillean defendants detained by the Judicial Service of the Caribbean Netherlands in Bonaire. METHOD: With the approval of the publishers, the GIT 2 and the BFIS were translated in Papiamento by two independent experts...
2016: Tijdschrift Voor Psychiatrie
https://www.readbyqxmd.com/read/27754095/os-20-09-diagnosis-and-treatment-of-cognitive-disorders-in-arterial-hypertension
#11
Viktoria Krotova, Tatyana Khomazyuk
OBJECTIVE: One of the first disorders of affection subcortical brain structures in arterial hypertension (AH) is a decrease in mental processes, intellectual rigidity. To investigate the cognitive disorders (CD) in AH patients 1-2 stages of working age and the effectiveness of nootropic agent (phenibutum) and anticholinergic drug (ipidacrinum) in combined antihypertensive therapy. DESIGN AND METHOD: Observed 60 patients with controlled AH 1-2 stages and CD. The median age-55,3 ± 9,1 years and duration of AH-10,2 ± 5,8 years...
September 2016: Journal of Hypertension
https://www.readbyqxmd.com/read/27725270/multifunctional-nanogels-with-dual-temperature-and-ph-responsiveness
#12
Loredana Elena Nita, Aurica P Chiriac, Alina Diaconu, Nita Tudorachi, Liliana Mititelu-Tartau
Over the last 10 years, the development of intelligent biomaterials for medical and pharmaceutical applications has attracted growing interest by combining interdisciplinary efforts. Between them nanogels represent one of the most attractive carriers for innovative drug delivery systems. In the present investigation new variants of multi-responsive nanogels have been synthesized by crosslinking poly(itaconic anhydride-co-3,9-divinyl-2,4,8,10-tetraoxaspiro [5.5] undecane) copolymer (having different molar ratios between comonomers) with 1,12-dodecandiol...
December 30, 2016: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/27685895/overview-on-the-current-status-of-virtual-high-throughput-screening-and-combinatorial-chemistry-approaches-in-multi-target-anticancer-drug-discovery-part-i
#13
George D Geromichalos, Constantinos E Alifieris, Elena G Geromichalou, Dimitrios T Trafalis
Conventional drug design embraces the "one gene, one drug, one disease" philosophy. Nowadays, new generation of anti- cancer drugs, able to inhibit more than one pathway, is believed to play a major role in contemporary anticancer drug research. In this way, polypharmacology, focusing on multi-target drugs, has emerged as a new paradigm in drug discovery. A number of recent successful drugs have in part or in whole emerged from a structure-based research approach. Many advances including crystallography and informatics are behind these successes...
July 2016: Journal of B.U.ON.: Official Journal of the Balkan Union of Oncology
https://www.readbyqxmd.com/read/27646591/ph-nir-light-controlled-multidrug-release-via-a-mussel-inspired-nanocomposite-hydrogel-for-chemo-photothermal-cancer-therapy
#14
Amin GhavamiNejad, Melisa SamariKhalaj, Ludwig Erik Aguilar, Chan Hee Park, Cheol Sang Kim
This study reports on an intelligent composite hydrogel with both pH-dependent drug release in a cancer environment and heat generation based on NIR laser exposure, for the combined application of photothermal therapy (PTT) and multidrug chemotherapy. For the first time in the literature, Dopamine nanoparticle (DP) was incorporated as a highly effective photothermal agent as well as anticancer drug, bortezomib (BTZ) carrier inside a stimuli responsive pNIPAAm-co-pAAm hydrogel. When light is applied to the composite hydrogel, DP nanoparticle absorbs the light, which is dissipated locally as heat to impact cancer cells via hyperthermia...
2016: Scientific Reports
https://www.readbyqxmd.com/read/27643020/os-20-09-diagnosis-and-treatment-of-cognitive-disorders-in-arterial-hypertension
#15
Viktoria Krotova, Tatyana Khomazyuk
OBJECTIVE: One of the first disorders of affection subcortical brain structures in arterial hypertension (AH) is a decrease in mental processes, intellectual rigidity. To investigate the cognitive disorders (CD) in AH patients 1-2 stages of working age and the effectiveness of nootropic agent (phenibutum) and anticholinergic drug (ipidacrinum) in combined antihypertensive therapy. DESIGN AND METHOD: Observed 60 patients with controlled AH 1-2 stages and CD. The median age-55,3 ± 9,1 years and duration of AH-10,2 ± 5,8 years...
September 2016: Journal of Hypertension
https://www.readbyqxmd.com/read/27626786/smart-bomb-as1411-aptamer-functionalized-pamam-dendrimer-nanocarriers-for-targeted-drug-delivery-in-the-treatment-of-gastric-cancer
#16
Amir Barzegar Behrooz, Fatemeh Nabavizadeh, Jamal Adiban, Mehdi Shafiee Ardestani, Rouhollah Vahabpour, Mohammad Reza Aghasadeghi, Hamid Sohanaki
Chemotherapy, a conventional method assessed in recent oncology studies, poses numerous problems in the clinical environment. To overcome the problems inherent in chemotherapy, an intelligent drug delivery system has come to the forefront of cancer therapeutics. In this study, we designed a dendrimer-based pharmaceutical system together with a single-stranded AS1411 aptamer (APT(AS)(1411) ) as a therapeutic strategy. The polyamidoamine (PAMAM)-polyethylene glycol (PEG) complex was then conjugated with the AS1411 aptamer and confirmed by atomic-force microscopy (AFM) and Fourier transform infrared spectroscopy (FTIR) ...
January 2017: Clinical and Experimental Pharmacology & Physiology
https://www.readbyqxmd.com/read/27594525/evaluation-of-the-tissue-distribution-excretion-and-cytochrome-p450-induction-studies-of-a-potential-antitumor-agent-tm-2-in-animals-using-lc-ms-ms
#17
Lei Men, Yunli Zhao, Hongxin Lin, Xing Tang, Zhiguo Yu
1 TM-2 is a promising novel semi-synthetic taxane derivative with greater antitumor activity especially against resistant tumors and lower toxicity compared with docetaxel. Information on distribution and excretion of the pharmaceutical in animals, as well as biochemical information relevant to potential drug interactions should normally be evaluated prior to human clinical trials. 2 The present study investigated the tissue distribution and excretion of TM-2 in animals following intravenous administration for further advancement of the molecule...
September 5, 2016: Xenobiotica; the Fate of Foreign Compounds in Biological Systems
https://www.readbyqxmd.com/read/27564064/modular-design-and-facile-synthesis-of-enzyme-responsive-peptide-linked-block-copolymers-for-efficient-delivery-of-doxorubicin
#18
Wendong Ke, Junjie Li, Kaijie Zhao, Zengshi Zha, Yu Han, Yuheng Wang, Wei Yin, Ping Zhang, Zhishen Ge
Construction of efficient doxorubicin (DOX) delivery systems addressing a cascade of physiological barriers remains a great challenge for better therapeutic efficacy of tumors. Herein, we design well-defined enzyme-responsive peptide-linked block copolymer, PEG-GPLGVRGDG-P(BLA-co-Asp) [PEG and P(BLA-co-Asp) are poly(ethylene glycol) and partially hydrolyzed poly(β-benzyl l-aspartate) (PBLA), respectively] (P3), with modular functionality for efficient delivery of DOX. The block copolymers were successfully obtained via click reaction to introduce peptide (alkynyl-GPLGVRGDG) into the end of PEG for initiating ring-opening polymerization of β-benzyl l-aspartate N-carboxyanhydride (BLA-NCA) by terminal amino groups followed by partial hydrolysis of PBLA segments...
October 10, 2016: Biomacromolecules
https://www.readbyqxmd.com/read/27557281/a-fibrous-localized-drug-delivery-platform-with-nir-triggered-and-optically-monitored-drug-release
#19
Heng Liu, Yike Fu, Yangyang Li, Zhaohui Ren, Xiang Li, Gaorong Han, Chuanbin Mao
Implantable localized drug delivery systems (LDDSs) with intelligent functionalities have emerged as a powerful chemotherapeutic platform in curing cancer. Developing LDDSs with rationally controlled drug release and real-time monitoring functionalities holds promise for personalized therapeutic protocols but suffers daunting challenges. To overcome such challenges, a series of porous Yb(3+)/Er(3+) codoped CaTiO3 (CTO:Yb,Er) nanofibers, with specifically designed surface functionalization, were synthesized for doxorubicin (DOX) delivery...
September 6, 2016: Langmuir: the ACS Journal of Surfaces and Colloids
https://www.readbyqxmd.com/read/27540599/precision-medicine-intelligence-evidence-scoring-evaluating-the-clinical-actionability-of-braf-v600e-in-multiple-non-melanoma-solid-tumors
#20
A Crescenzo
With the ever-increasing growth of next-generation sequencing literature, how can researchers and clinicians assess clinical actionability and utility and objectively assign confidence to gene variant-phenotype associations? This article presents an informatics solution for clinical interpretation of patient-derived genomic and molecular data containing manually curated scientific evidence supporting gene variant-disease and -drug response phenotypes in somatic cancers. An algorithm for direct evidence scoring will be used to demonstrate the diverse utility of BRAF V600E in treating many common cancers...
July 2016: Drugs of Today
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