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https://www.readbyqxmd.com/read/29163166/saxagliptin-attenuates-albuminuria-by-inhibiting-podocyte-epithelial-to-mesenchymal-transition-via-sdf-1%C3%AE-in-diabetic-nephropathy
#1
Yun-Peng Chang, Bei Sun, Zhe Han, Fei Han, Shao-Lan Hu, Xiao-Yu Li, Mei Xue, Yang Yang, Li Chen, Chun-Jun Li, Li-Ming Chen
The dipeptidyl peptidase-4 (DPP-4) inhibitor saxagliptin has been found to reduce progressive albuminuria, but the exact mechanism of inhibition is unclear. Podocyte epithelial-to-mesenchymal transition (EMT) has emerged as a potential pathway leading to proteinuria in diabetic nephropathy (DN). Stromal cell-derived factor-1α (SDF-1α), one of the substrates of DPP-4, can activate the protein kinase A pathway and subsequently inhibit its downstream effector, transforming growth factor-β1 (TGF-β1), which induces podocyte EMT...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/29162869/novel-one-step-synthesis-of-zwitterionic-polymer-nanoparticles-via-distillation-precipitation-polymerization-and-its-application-for-dye-removal-membrane
#2
G P Syed Ibrahim, Arun M Isloor, Inamuddin, Abdullah M Asiri, Norafiqah Ismail, Ahmed Fauzi Ismail, Ghulam Md Ashraf
In this work, poly(MBAAm-co-SBMA) zwitterionic polymer nanoparticles were synthesized in one-step via distillation-precipitation polymerization (DPP) and were characterized. [2-(methacryloyloxy)ethyl]dimethyl-(3-sulfopropyl)ammonium hydroxide (SBMA) as monomer and N, N'-methylene bis(acrylamide) (MBAAm) as cross-linker are used for the synthesis of nanoparticles. As  far as our knowledge, this is the first such report on the synthesis of poly(MBAAm-co-SBMA) nanoparticles via DPP. The newly synthesized nanoparticles were further employed for the surface modification of polysulfone (PSF) hollow fiber membranes for dye removal...
November 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29159257/development-and-analytical-performance-of-a-new-architect-automated-dipeptidyl-peptidase-4-immunoassay
#3
Philip M Hemken, Nicolette M Jeanblanc, Tracey Rae, Susan E Brophy, Maria J Datwyler, Ying Xu, T Scott Manetz, Inna Vainshtein, Meina Liang, Xiaodong Xiao, Partha S Chowdhury, Chien-Ying Chang, Katie Streicher, Lydia Greenlees, Koustubh Ranade, Gerard J Davis
Background: Dipeptidyl peptidase-4 (DPP-4) may be a suitable biomarker to identify people with severe asthma who have greater activation of the interleukin-13 (IL-13) pathway and may therefore benefit from IL-13-targeted treatments. We report the analytical performance of an Investigational Use Only immunoassay and provide data on the biological range of DPP-4 concentrations. Methods: We assessed assay performance, utilising analyses of precision, linearity and sensitivity; interference from common endogenous assay interferents, and from asthma and anti-diabetic medications, were also assessed...
December 2017: Pract Lab Med
https://www.readbyqxmd.com/read/29158889/non-canonical-dorsoventral-patterning-in-the-moth-midge-clogmia-albipunctata
#4
Karl R Wotton, Anna Alcaine-Colet, Johannes Jaeger, Eva Jiménez-Guri
Background: Bone morphogenetic proteins (BMPs) are of central importance for dorsal-ventral (DV) axis specification. They are core components of a signalling cascade that includes the BMP ligand decapentaplegic (DPP) and its antagonist short gastrulation (SOG) in Drosophila melanogaster. These components are very ancient, with orthologs involved in DV patterning in both protostomes and deuterostomes. Despite such strong conservation, recent comparative work in insects has revealed interesting differences in the way the patterning function of the DV system is achieved in different species...
2017: EvoDevo
https://www.readbyqxmd.com/read/29156154/coconut-phytocompounds-inhibits-polyol-pathway-enzymes-implication-in-prevention-of-microvascular-diabetic-complications
#5
Devi Lekshmi Sheela, Puthiyaveetil Abdulla Nazeem, Arunaksharan Narayanankutty, R Muthangaparambil Shylaja, Sangeetha P Davis, Priyanga James, Ravisankar Valsalan, Thekkekara Devassy Babu, Achuthan C Raghavamenon
Coconut oil (CO), the primary choice of cooking purposes in the south Asian countries, is rich in medium chain saturated fatty acids, especially lauric acid (50-52%). The oil has high medicinal use in Ayurvedic system and known to contain polyphenolic antioxidants. Studies have reported that CO improves insulin sensitivity and shows hypoglycemic effect. However, there is no information regarding its effect on chronic diabetic complications including retinopathy and nephropathy is available. The secondary diabetic complications are mediated by the activation of polyol pathway, where aldose reductase (AR) plays crucial role...
December 2017: Prostaglandins, Leukotrienes, and Essential Fatty Acids
https://www.readbyqxmd.com/read/29154902/dipeptidyl-peptidase-iv-dpp-iv-inhibition-prevents-fibrosis-in-adipose-tissue-of-obese-mice
#6
Ana Patrícia Marques, Janete Cunha-Santos, Helena Leal, Lígia Sousa-Ferreira, Luís Pereira de Almeida, Cláudia Cavadas, Joana Rosmaninho-Salgado
BACKGROUND: During the development of obesity the expansion of white adipose tissue (WAT) leads to a dysregulation and an excessive remodeling of extracellular matrix (ECM), leading to fibrosis formation. These ECM changes have high impact on WAT physiology and may change obesity progression. Blocking WAT fibrosis may have beneficial effects on the efficacy of diet regimen or therapeutical approaches in obesity. Since dipeptidyl peptidase IV (DPP-IV) inhibitors prevent fibrosis in tissues, such as heart, liver and kidney, the objective of this study was to assess whether vildagliptin, a DPP-IV inhibitor, prevents fibrosis in WAT in a mouse model of obesity, and to investigate the mechanisms underlying this effect...
November 14, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/29148282/macrocarpal-c-isolated-from-eucalyptus-globulus-inhibits-dipeptidyl-peptidase-4-in-an-aggregated-form
#7
Eisuke Kato, Kazuhiro Kawakami, Jun Kawabata
Dipeptidyl peptidase 4 (DPP-4) inhibitors are used for the treatment of type-2 diabetes mellitus. Various synthetic inhibitors have been developed to date, and plants containing natural DPP-4 inhibitors have also been identified. Here, 13 plant samples were tested for their DPP-4 inhibitory activity. Macrocarpals A-C were isolated from Eucalyptus globulus through activity-guided fractionation and shown to be DPP-4 inhibitors. Of these, macrocarpal C showed the highest inhibitory activity, demonstrating an inhibition curve characterised by a pronounced increase in activity within a narrow concentration range...
December 2018: Journal of Enzyme Inhibition and Medicinal Chemistry
https://www.readbyqxmd.com/read/29146426/determination-of-phthalic-acid-esters-in-water-samples-using-core-shell-poly-dopamine-magnetic-nanoparticles-and-gas-chromatography-tandem-mass-spectrometry
#8
Javier González-Sálamo, Bárbara Socas-Rodríguez, Javier Hernández-Borges, Miguel Ángel Rodríguez-Delgado
In this work, the first application of core-shell poly(dopamine) magnetic nanoparticles as sorbent for the extraction of a group of eleven phthalic acid esters of interest (i.e. diethyl phthalate (DEP), dipropyl phthalate (DPP), dibutyl phthalate (DBP), bis-isopentyl phthalate (DIPP), bis-n-pentyl phthalate (DNPP), benzylbutyl phthalate (BBP), dicyclohexyl phthalate (DCHP), di-(2-ethylhexyl) phthalate (DEHP), di-n-octyl phthalate (DNOP), diisononyl phthalate (DINP) and diisodecyl phthalate (DIDP)) and one adipate (bis (2-ethylhexyl) adipate, DEHA) from different water samples (Milli-Q, mineral, tap, pond and waste water) is proposed...
November 8, 2017: Journal of Chromatography. A
https://www.readbyqxmd.com/read/29146035/renal-outcomes-with-dipeptidyl-peptidase-4-inhibitors
#9
REVIEW
A J Scheen, P Delanaye
Dipeptidyl peptidase-4 inhibitors (DPP-4is) are increasingly being used in the management of type 2 diabetes (T2D). The present review summarizes the current knowledge of the effects of DPP-4is on renal outcomes by analyzing the experimental preclinical data, the effects of DPP-4is on urinary albumin-creatinine ratios (UACRs) and estimated glomerular filtration rates (eGFRs) from observational studies and clinical trials, and renal events (including kidney failure requiring renal replacement therapy) in recent large prospective cardiovascular outcome trials...
November 13, 2017: Diabetes & Metabolism
https://www.readbyqxmd.com/read/29145151/vildagliptin-loaded-triangular-dna-nanospheres-coated-with-eudragit-for-oral-delivery-and-better-glycemic-control-in-type-2-diabetes-mellitus
#10
Mirza Muhammad Faran Ashraf Baig, Sara Khan, Muhammad Ahsan Naeem, Ghulam Jilany Khan, Muhammad Tayyab Ansari
Diabetes mellitus type 2 is a multidimensional disease associated with poor glycemic control through compromised sensitivity of pancreatic islet α and β cells against glucose and dwindled secretion of insulin which is linked with the quantity of incretin hormones that are abridged by dipeptidyl peptidase-4 (DPP-4) in diseased condition. Vildagliptin (VG) inhibits DPP-4 therefore regulates the incretins that conversely maintains glycemic control. The safe reach and absorption of VG from intestine was dubious...
November 13, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29143678/shifting-the-paradigm-in-dirofilaria-immitis-prevention-blocking-transmission-from-mosquitoes-to-dogs-using-repellents-insecticides-and-macrocyclic-lactone-prevention-as-part-of-a-multimodal-approach
#11
John W McCall, Marie Varloud, Elizabeth Hodgkins, Abdelmoneim Mansour, Utami DiCosty, Scott McCall, James Carmichael, Ben Carson, Justin Carter
BACKGROUND: This study assessed the influence of a topical ectoparasiticide (dinotefuran-permethrin-pyriproxyfen, DPP, Vectra® 3D, Ceva Animal Health) combined with a macrocyclic lactone (milbemycin oxime, MBO, Interceptor®, Virbac) on transmission of heartworm L3 from mosquitoes to dogs and subsequent development of worms in treated dogs exposed to infected mosquitoes. METHODS: Thirty-two beagle dogs were allocated to four groups of eight: Group 1, untreated controls; Group 2, treated topically with DPP on Day 0; Group 3, treated orally with MBO on Day 51; and Group 4, treated with DPP on Day 0 and MBO on Day 51...
November 9, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/29143651/blocking-the-transmission-of-heartworm-dirofilaria-immitis-to-mosquitoes-aedes-aegypti-by-weekly-exposure-for-one-month-to-microfilaremic-dogs-treated-once-topically-with-dinotefuran-permethrin-pyriproxyfen
#12
John W McCall, Elizabeth Hodgkins, Marie Varloud, Abdelmoneim Mansour, Utami DiCosty
BACKGROUND: This study assessed the influence of a topical ectoparasiticide (dinotefuran-permethrin-pyriproxyfen, DPP, Vectra®3D, Ceva Animal Health) on the acquisition of heartworm microfilariae by mosquitoes exposed to microfilaremic dogs weekly for 1 month. METHODS: Six beagle dogs (9.2 ± 1.6 kg body weight) infected with Dirofilaria immitis were allocated to two groups of three dogs: an untreated control group and a DPP-treated group. Dogs were treated on Day 0 and exposed under sedation for 1 h to 80 ± 20 unfed Aedes aegypti...
November 9, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/29143466/tuberculosis-serosurveillance-and-management-practices-of-captive-african-elephants-loxodonta-africana-in-the-kavango-zambezi-transfrontier-conservation-area
#13
L E Rosen, T G Hanyire, J Dawson, C M Foggin, A L Michel, K P Huyvaert, M A Miller, F J Olea-Popelka
Transfrontier conservation areas represent an international effort to encourage conservation and sustainable development. Their success faces a number of challenges, including disease management in wildlife, livestock and humans. Tuberculosis (TB) affects humans and a multitude of non-human animal species and is of particular concern in sub-Saharan Africa. The Kavango-Zambezi Transfrontier Conservation Area encompasses five countries, including Zimbabwe, and is home to the largest contiguous population of free-ranging elephants in Africa...
November 16, 2017: Transboundary and Emerging Diseases
https://www.readbyqxmd.com/read/29138226/insulin-secretory-effect-of-sitagliptin-assessment-with-a-hyperglycemic-clamp-combined-with-a-meal-challenge
#14
Sudha S Shankar, R Ravi Shankar, Lori A Mixson, Deborah L Miller, Helmut O Steinberg, Chan R Beals, David E Kelley
Sitagliptin,a dipeptidylpeptidase-IVinhibitor(DPP-4),sustains activity of the incretin hormones GLP-1andGIP and improves hyperglycemia inT2DM.It has however proven challenging to quantify the effect of sitagliptin on rates of insulin secretion(ISR) during a prandial challenge.The tight feedback governance ofISR by plasma glucose means that in the face of treatment-related lowering of postprandialglycemia,corresponding stimulation ofISR is lessened.We postulated that sustaining a stable level of moderate hyperglycemia prior to and during a mealchallenge(MC)would be a platform that enables greater clarity to assess the effect ofsitagliptin onISR and an approach that could be valuable to evaluate novel targets that increase insulin secretion directly and by augmenting incretins...
November 14, 2017: American Journal of Physiology. Endocrinology and Metabolism
https://www.readbyqxmd.com/read/29136913/direct-detection-of-fluoride-ions-in-aquatic-samples-by-surface-enhanced-raman-scattering
#15
Xueliang Li, Ming Zhang, Yue Wang, Xiaolei Wang, Hao Ma, Peng Li, Wei Song, Xiao Xia Han, Bing Zhao
Given the strong hydration propensity of fluoride ions, it is difficult to detect fluoride, especially inorganic fluoride, in aqueous samples. Resolving the issue of fluoride detection in aqueous samples is a scientific undertaking of great practical significance. Herein, we propose a new method for the sensitive and selective detection of fluoride in aqueous samples without the addition of organic solvents. The method involves surface-enhanced Raman spectroscopy using 1,4-diketo-3,6-diphenylpyrrolo[3,4-c]pyrrole (DPP) compounds and Ag nanoparticles...
February 1, 2018: Talanta
https://www.readbyqxmd.com/read/29133097/biological-and-textural-properties-of-underutilized-exudate-gums-of-jammu-and-kashmir-india
#16
Mudasir Bashir, Tuba Usmani, Sundaramoorthy Haripriya, Tanveer Ahmed
Three different exudate gums were studied for their in-vitro antioxidant activity, functional and textural properties. In-vitro antioxidant activity of the gum exudates was evaluated in terms of DPPH radical scavenging, hydroxyl radical scavenging, reducing power and phenolic content assays. Among the gum exudates, almond gum exhibited maximum DPPḢ inhibition of 35.52±1.125% followed by apricot gum and gum arabic at the concentration of 1mg/mL. Gum arabic had significantly higher reducing power than the other exudate gums...
November 10, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/29132091/effect-of-anti-diabetic-drugs-on-bone-metabolism-evidence-from-preclinical-and-clinical-studies
#17
REVIEW
Mohammad Adil, Rashid Ali Khan, Abul Kalam, Shiva Kumar Venkata, Amit Dattatraya Kandhare, Pinaki Ghosh, Manju Sharma
Diabetes mellitus is associated with abnormal bone health and an increased risk of fracture even though patients have normal or higher BMD. The mechanisms behind diabetes mellitus- induced various skeletal disorders remain unclear. Anti-diabetic drugs may have negative or positive impact on bone metabolism. For instance, thiazolidinediones increases the bone loss and risk of fracture possibly through PPARγ activation in bone marrow cells and hamper osteoblastogenesis via decreasing Runx2 transcription factor, IGF-1 and Wnt signalling pathways...
May 25, 2017: Pharmacological Reports: PR
https://www.readbyqxmd.com/read/29129715/reducing-barriers-to-healthy-weight-planned-and-responsive-adaptations-to-a-lifestyle-intervention-to-serve-people-with-impaired-mobility
#18
Andrea C Betts, Katherine Froehlich-Grobe, Simon Driver, Danielle Carlton, M Kaye Kramer
BACKGROUND: People with impaired mobility (IM) disabilities have a higher prevalence of obesity and obesity-related chronic conditions; however, lifestyle interventions that address the unique needs of people with IM are lacking. OBJECTIVE: This paper describes an adapted evidence-based lifestyle intervention developed through community-based participatory research (CBPR). METHODS: Individuals with IM, health professionals, disability group representatives, and researchers formed an advisory board to guide the process of thoroughly adapting the Diabetes Prevention Program Group Lifestyle Balance (DPP GLB) intervention after a successful pilot in people with IM...
October 27, 2017: Disability and Health Journal
https://www.readbyqxmd.com/read/29125769/is-solute-rotation-in-an-ionic-liquid-influenced-by-the-addition-of-glucose
#19
Rajan Maurya, Sudhanshu Naithani, Dibyendu Bandyopadhyay, Niharendu Choudhury, G Bhaskar Dutt
Fluorescence anisotropy measurements and molecular dynamics simulations (MD) have been performed to understand the specific interactions of two structurally similar nondipolar solutes, 2,5-dimethyl-1,4-dioxo-3,6-diphenylpyrrolo[3,4-c]pyrrole (DMDPP) and 1,4-dioxo-3,6-diphenylpyrrolo[3,4-c]pyrrole (DPP) with neat 1-butyl-3-methylimidazolium dicyanamide ([BMIM][N(CN)2]) and also in the presence of glucose. It has been observed that the measured reorientation times of DMDPP in neat [BMIM][N(CN)2] follow the predictions of Stokes-Einstein-Debye hydrodynamic theory with slip boundary condition...
November 10, 2017: Journal of Physical Chemistry. B
https://www.readbyqxmd.com/read/29125198/redox-active-ligand-assisted-two-electron-oxidative-addition-to-gallium-ii
#20
Igor L Fedushkin, Vladimir Dodonov, Alexandra Skatova, Vladimir Sokolov, Alexander Piskunov, Georgii Fukin
The reaction of digallane (dpp-bian)Ga-Ga(dpp-bian) (2) (dpp-bian = 1,2-bis[(2,6-diisopropylphenyl)imino]acenaphthene) with allylchloride (AllCl) proceeds as the two-electron oxidative addition and affords paramagnetic complexes (dpp-bian)Ga(1-All)Cl (3) and (dpp-bian)(Cl)Ga-Ga(Cl)(dpp-bian) (4). Treatment of complex 4 with pyridine induces intramolecular redox-process resulting diamagnetic (dpp-bian)Ga(Py)Cl (5). With allylbromide complex 2 gives metal- and ligand-centered addition products, (dpp-bian)Ga(1-All)Br (6) and (dpp-bian-All)(Br)Ga-Ga(Br)(dpp-bian-All) (7)...
November 10, 2017: Chemistry: a European Journal
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