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https://www.readbyqxmd.com/read/28335208/the-influence-of-fluorination-on-nano-scale-phase-separation-and-photovoltaic-performance-of-small-molecular-pc71bm-blends
#1
Zhen Lu, Wen Liu, Jingjing Li, Tao Fang, Wanning Li, Jicheng Zhang, Feng Feng, Wenhua Li
To investigate the fluorination influence on the photovoltaic performance of small molecular based organic solar cells (OSCs), six small molecules based on 2,1,3-benzothiadiazole (BT), and diketopyrrolopyrrole (DPP) as core and fluorinated phenyl (DFP) and triphenyl amine (TPA) as different terminal units (DFP-BT-DFP, DFP-BT-TPA, TPA-BT-TPA, DFP-DPP-DFP, DFP-DPP-TPA, and TPA-DPP-TPA) were synthesized. With one or two fluorinated phenyl as the end group(s), HOMO level of BT and DPP based small molecular donors were gradually decreased, inducing high open circuit voltage for fluorinated phenyl based OSCs...
April 21, 2016: Nanomaterials
https://www.readbyqxmd.com/read/28333312/establishment-maintenance-and-functional-integrity-of-the-blood-testis-barrier-in-organotypic-cultures-of-fresh-and-frozen-thawed-prepubertal-mouse-testes
#2
C Rondanino, A Maouche, L Dumont, A Oblette, N Rives
STUDY QUESTION: Can the spatio-temporal formation of an intact blood-testis barrier (BTB), which is essential for the progression of spermatogenesis, be reproduced in cultures of fresh or frozen/thawed prepubertal mouse testes? SUMMARY ANSWER: Organotypic cultures allow the establishment and maintenance of major BTB components and the formation of a functional BTB in mouse testicular tissues. WHAT IS KNOWN ALREADY: In vitro maturation of prepubertal testicular tissues is a promising approach to restore fertility in adult survivors of childhood cancer...
March 17, 2017: Molecular Human Reproduction
https://www.readbyqxmd.com/read/28332871/sodium-glucose-cotransporter-2-and-dipeptidyl-peptidase-4-inhibition-promise-of-a-dynamic-duo
#3
Ildiko Lingvay
OBJECTIVE: This article reviews evidence supporting sodium glucose cotransporter 2 (SGLT2) inhibitor and dipeptidyl peptidase-4 (DPP-4) inhibitor combination therapy for management of type 2 diabetes mellitus (T2DM). METHODS: We conducted a non-systematic review of the literature focusing on single-pill or fixed-dose combinations of SGLT2 inhibitors and DPP-4 inhibitors available in the United States. RESULTS: SGLT2 inhibitors and DPP-4 inhibitors have complementary mechanisms of action that address several of the underlying pathophysiological abnormalities present in T2DM without overlapping toxicities...
March 23, 2017: Endocrine Practice
https://www.readbyqxmd.com/read/28332122/cognitive-impairments-and-predominant-polarity-in-bipolar-disorder-a-cross-sectional-study
#4
Gabriel Okawa Belizario, Alexandre Duarte Gigante, Cristiana Castanho de Almeida Rocca, Beny Lafer
BACKGROUND: Bipolar disorder (BD) patients exhibit cognitive impairments during euthymic states. Studies suggest that manic episodes may be correlated to cognitive impairments. The present study investigated the relationship between predominant polarity and the cognitive deficits frequently detected in bipolar patients. We hypothesize that mania predominant polarity (MPP) patients should exhibit greater cognitive impairments in comparison to depressive (DPP) and indefinite predominant polarity (IPP) patients and healthy control (HC) individuals...
December 2017: International Journal of Bipolar Disorders
https://www.readbyqxmd.com/read/28330877/k-channel-modulatory-subunits-kchip-and-dpp-participate-in-kv4-mediated-mechanical-pain-control
#5
Yen-Ling Kuo, Jen-Kun Cheng, Wen-Hsien Hou, Yu-Cheng Chang, Po-Hao Du, Jhao-Jun Jian, Ruey-Horng Rau, Jung-Hui Yang, Cheng-Chang Lien, Meei-Ling Tsaur
The K(+) channel pore-forming subunit Kv4.3 is expressed in a subset of non-peptidergic nociceptors within the dorsal root ganglion (DRG), and knockdown of Kv4.3 selectively induces mechanical hypersensitivity, a major symptom of neuropathic pain. K(+) channel modulatory subunits KChIP1, KChIP2 and DPP10 are coexpressed in Kv4.3(+) DRG neurons, but whether they participate in Kv4.3-mediated pain control is unknown. Here, we show the existence of a Kv4.3/KChIP1/KChIP2/DPP10 complex (abbreviated as the Kv4 complex) in the endoplasmic reticulum and cell surface of DRG neurons...
March 22, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28327803/serodiagnosis-of-visceral-and-cutaneous-leishmaniasis-in-human-and-canine-populations-living-in-indigenous-reserves-in-the-brazilian-amazon-region
#6
Julia Teresa Ribeiro de Lima, Solange Maria Gennari, Herbert Sousa Soares, Antonio Humberto Hamad Minervino, Antonio Francisco Malheiros, Fernando Silveira Marques, Márcia Dalastra Laurenti, Rosangela Zacarias Machado, Arlei Marcili, Marcelo Bahia Labruna, Rodrigo Martins Soares
INTRODUCTION: Leishmaniasis is endemic to the Northern, Northeastern, Central-Western, and Southeastern regions of Brazil. We aimed to assess the epidemiological situation of leishmaniasis in humans and dogs in indigenous villages located in the States of Mato Grosso and Tocantins using a serological survey conducted in May 2011. METHODS: Serum samples were collected from 470 humans and 327 dogs living in villages of the Urubu Branco and Tapirapé Karajá indigenous reserves...
January 2017: Revista da Sociedade Brasileira de Medicina Tropical
https://www.readbyqxmd.com/read/28327288/atrophin-controls-developmental-signaling-pathways-via-interactions-with-trithorax-like
#7
Kelvin Yeung, Ann Boija, Edvin Karlsson, Per-Henrik Holmqvist, Yonit Tsatskis, Ilaria Nisoli, Damian B Yap, Alireza Lorzadeh, Michelle Moksa, Martin Hirst, Samuel Aparicio, Manolis Fanto, Per Stenberg, Mattias Mannervik, Helen McNeill
Mutations in human Atrophin1, a transcriptional corepressor, cause dentatorubral-pallidoluysian atrophy, a neurodegenerative disease. Drosophila Atrophin (Atro) mutants display many phenotypes, including neurodegeneration, segmentation, patterning and planar polarity defects. Despite Atro's critical role in development and disease, relatively little is known about Atro's binding partners and downstream targets. We present the first genomic analysis of Atro using ChIP-seq against endogenous Atro. ChIP-seq identified 1300 potential direct targets of Atro including engrailed, and components of the Dpp and Notch signaling pathways...
March 22, 2017: ELife
https://www.readbyqxmd.com/read/28326327/ameliorating-effect-of-gemigliptin-on-renal-injury-in-murine-adriamycin-induced-nephropathy
#8
Da Rae Kim, Shin Yeong Lee, Jin Sug Kim, Yang Gyun Kim, Ju-Young Moon, Sang Ho Lee, Tae Won Lee, Chun Gyoo Ihm, Kyung Hwan Jeong
Background. Previous studies have shown the antiapoptotic and anti-inflammatory potential of DPP-IV inhibitor in experimental models of renal injury. We tested whether DPP-IV inhibitor (gemigliptin) ameliorates renal injury by suppressing apoptosis, inflammation, and oxidative stress in mice with adriamycin nephropathy. Methods. Mice were treated with normal saline (control), gemigliptin (GM), adriamycin (ADR), or adriamycin combined with gemigliptin (ADR+GM). Apoptosis, inflammation, and oxidative stress were analyzed via western blotting, real-time PCR, light microscopy, and immunofluorescence...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28323503/add-on-dpp-4-inhibitor-alogliptin-alone-or-in-combination-with-pioglitazone-improved-%C3%AE-cell-function-and-insulin-sensitivity-in-metformin-treated-pcos
#9
Mojca Jensterle, Katja Goricar, Andrej Janez
PURPOSE: Impaired β-cell function remains unaddressed in PCOS. The aim of the study was to evaluate whether dipeptidyl peptidase-4 (DPP-4) inhibitor alogliptin (ALO) alone or in combination with pioglitazone (PIO) improves β-cell function along with insulin resistance (IR) in metformin (MET) treated obese women with PCOS with persistent IR. MATERIALS AND METHODS: In 12-week randomized study, ALO 25 mg QD (n=15) or ALO 25 mg QD and PIO 30 mg QD (n=15) was added to MET 1000 mg BID in PCOS women (aged 34...
March 21, 2017: Endocrine Research
https://www.readbyqxmd.com/read/28322294/effects-of-dipeptidyl-peptidase-4-inhibitors-on-beta-cell-function-and-insulin-resistance-in-type-2-diabetes-meta-analysis-of-randomized-controlled-trials
#10
Xiafei Lyu, Xiaolin Zhu, Bin Zhao, Liang Du, Dawei Chen, Chun Wang, Guanjian Liu, Xingwu Ran
Dipeptidyl peptidase-4 (DPP-4) inhibitors are a novel family of glucose-lowering agents. Accumulating evidence suggests that DPP-4 inhibitors preserve pancreatic beta-cell function, but results in previous studies have been inconsistent. We assessed the effects of DPP-4 inhibitors on the homoeostasis model assessment beta-cell function (HOMA-B) or insulin resistance (HOMA-IR) index in patients with type 2 diabetes through a systematic review and meta-analysis of randomized controlled trials (RCTs). Relevant articles were identified from PubMed, Embase, and Cochrane Library databases up to December 27, 2016...
March 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28322073/sglt2-inhibitor-dpp-4-inhibitor-combination-therapy-complementary-mechanisms-of-action-for-management-of-type-2-diabetes-mellitus
#11
Jayant Dey
Type 2 diabetes mellitus is a progressive disease with multiple underlying pathophysiologic defects. Monotherapy alone cannot maintain glycemic control and leads to treatment failure. Ideally, a combination of glucose-lowering agents should have complementary mechanisms of action that address multiple pathophysiologic pathways, can be used at all stages of the disease, and be generally well tolerated with no increased risk of hypoglycemia, cardiovascular events, or weight gain. The combination should also provide conveniences for patients, such as oral dosing, single-pill formulations, and once-daily administration, potentially translating to improved adherence...
March 21, 2017: Postgraduate Medicine
https://www.readbyqxmd.com/read/28321949/synthesis-and-characterization-of-a-soluble-a-d-a-molecule-containing-a-2d-conjugated-selenophene-based-side-group-for-organic-solar-cells
#12
Yurim Shin, Chang Eun Song, Woo-Hyung Lee, Sang Kyu Lee, Won Suk Shin, In-Nam Kang
A new acceptor-donor-acceptor (A-D-A) small molecule based on benzodithiophene (BDT) and diketopyrrolopyrrole (DPP) is synthesized via a Stille cross-coupling reaction. A highly conjugated selenophene-based side group is incorporated into each BDT unit to generate a 2D soluble small molecule (SeBDT-DPP). SeBDT-DPP thin films produce two distinct absorption peaks. The shorter wavelength absorption (400 nm) is attributed to the BDT units containing conjugated selenophene-based side groups, and the longer wavelength band is due to the intramolecular charge transfer between the BDT donor and the DPP acceptor...
March 21, 2017: Macromolecular Rapid Communications
https://www.readbyqxmd.com/read/28321057/the-glucose-lowering-efficacy-of-sitagliptin-in-obese-japanese-patients-with-type-2-diabetes
#13
Ryo Kodera, Kenichi Shikata, Akihiko Nakamura, Satoru Okazaki, Ryo Nagase, Tatsuaki Nakatou, Shigeru Haisa, Kazuyuki Hida, Katsuhiro Miyashita, Hirofumi Makino
Objective Dipeptidyl peptidase-4 (DPP-4) inhibitors are the most frequently prescribed oral hypoglycemic agents in Japan. Although a relationship between the efficacy of DPP-4 inhibitors and the body mass index (BMI) has been reported, this relationship is controversial. We investigated whether the BMI value affects the glucose-lowering efficacy of sitagliptin in obese Japanese patients with type 2 diabetes. Methods One hundred sixty-two outpatients with inadequate glycemic control were divided into four groups based on their baseline BMI values...
2017: Internal Medicine
https://www.readbyqxmd.com/read/28318663/dipeptidyl-peptidase-iv-in-chronic-heart-failure-with-reduced-ejection-fraction
#14
Patrícia Lourenço, Sérgio Silva, Filipe Cunha, Joana Pereira, Ana Ribeiro, Nuno Silva, João Tiago Guimarães, José Paulo Araújo, Paulo Bettencourt
BACKGROUND: An association between dipeptidyl peptidase-IV (DPP-IV) inhibitors with worse prognosis in HF has been suggested. We aimed to assess the serum DPP-IV levels in chronic stable HF patients and determine their association with prognosis. METHODS AND RESULTS: Chronic stable HF patients with optimized prognostic-modifying therapy were prospectively recruited. EXCLUSION CRITERIA: 1) ejection fraction>50%, 2) hospitalizations or therapeutic adjustments in the previous 2months; 3) patients on renal replacement therapy, and 4) use of DPP-IV inhibitors...
March 11, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28317144/uhplc-ms-ms-method-for-the-determination-of-omarigliptin-in-rat-plasma-and-its-application-to-a-pharmacokinetic-study-in-rats
#15
Meng-Fang Li, Xiao-Xia Hu, Ai-Qun Ma
Omarigliptin is a novel long-acting DPP-4 inhibitor used for the treatment of T2DM. In this work, a sensitive and selective UHPLC-MS/MS method was developed and validated for determination of omarigliptin in rat plasma. Sample preparation was performed by protein precipitation with acetonitrile. Chromatographic separation of analytes was achieved on a RRHD Eclipse Plus C18 column (2.1 × 50 mm, 1.8 µ), using gradient mobile phase (0.1% formic acid-acetonitrile) at a flow rate of 0.4 mL/min. Detection was performed in multiple reaction monitoring mode, with target fragment ions m/z 399...
March 19, 2017: Biomedical Chromatography: BMC
https://www.readbyqxmd.com/read/28315838/germline-proliferation-is-regulated-by-somatic-endocytic-genes-via-jnk-and-bmp-signaling-in-drosophila
#16
Yaning Tang, Qing Geng, Di Chen, Shaowei Zhao, Xian Liu, Zhaohui Wang
Signals derived from the microenvironment contribute greatly to tumorigenesis. The underlying mechanism requires thorough investigation. Here, we use Drosophila testis as a model system to address this question, taking the advantage of the ease to distinguish germline and somatic cells and to track the cell numbers. In an EMS mutagenesis screen, we identified Rab5, a key factor in endocytosis, for its non-autonomous role in germline proliferation. The disruption of Rab5 in somatic cyst cells, which escort the development of germline lineage, induced the over-proliferation of under-differentiated but genetically wild-type germ cells...
March 17, 2017: Genetics
https://www.readbyqxmd.com/read/28314484/impact-of-health-policy-and-practice-on-finding-the-best-fit-for-patients-with-type-2-diabetes-after-metformin-failure-croatian-pilot-study
#17
Maja Cigrovski Berković, Davorka Herman Mahečić, Marina Gradišer, Ines Bilić-Ćurčić
AIM: We assessed the impact of clinical practice and health policy on the choice and efficacy of different second-line therapies for the treatment of type 2 diabetes (T2DM) after failure of metformin. METHODS: This retrospective database analysis included 200 patients with a follow-up period of 6 months. The primary end-point was achievement of HbA1c <7% and fasting (FBG) and postprandial glucose levels (PPG) <7.2mmol/L and <10mmol/L, respectively after three and six months of different add-on treatments...
March 14, 2017: Primary Care Diabetes
https://www.readbyqxmd.com/read/28303056/fixed-dose-combination-of-alogliptin-pioglitazone-improves-glycemic-control-in-japanese-patients-with-type-2-diabetes-mellitus-independent-of-body-mass-index
#18
Chie Aoki, Kunihiro Suzuki, Hisamoto Kuroda, Masaaki Sagara, Masanori Shimizu, Kikuo Kasai, Yoshimasa Aso
This study investigated the effects of switching from combination therapy with either alogliptin (Alo) or pioglitazone (Pio) to fixed-dose combination therapy (FDCT) with alogliptin and pioglitazone (Alo-Pio FDCT). The usefulness and efficacy of Alo-Pio FDCT were investigated. A total of 50 outpatients with type 2 diabetes mellitus (T2DM) treated with Alo and 47 outpatients with T2DM treated with Pio were switched to Alo-Pio FDCT, and its efficacy and usefulness were evaluated. Significant improvements were observed in hemoglobinA1c (HbA1c), alanine transaminase (ALT), and γ-glutamyl transpeptidase (GGT) levels after switching to Alo-Pio FDCT for 16 weeks in both groups...
February 2017: Nagoya Journal of Medical Science
https://www.readbyqxmd.com/read/28302310/design-synthesis-and-anti-diabetic-activity-of-triazolotriazine-derivatives-as-dipeptidyl-peptidase-4-dpp-4-inhibitors
#19
Bhumika D Patel, Shraddha V Bhadada, Manjunath D Ghate
Type 2 diabetes mellitus (T2DM) is one of the major global metabolic disorders characterized by insulin resistance and chronic hyperglycemia. Inhibition of the enzyme, dipeptidyl peptidase-4 (DPP-4) has been proved as successful and safe therapy for the treatment of T2DM since last decade. In order to design novel DPP-4 inhibitors, various in silico studies such as 3D-QSAR, pharmacophore modeling and virtual screening were performed and on the basis of the combined results of them, total 50 triazolo[5,1-c][1,2,4]triazine derivatives were designed and mapped on the best pharmacophore model...
March 6, 2017: Bioorganic Chemistry
https://www.readbyqxmd.com/read/28300136/spalt-is-functionally-conserved-in-locusta-and-drosophila-to-promote-wing-growth
#20
Dan Wang, Juanjuan Li, Suning Liu, Hang Zhou, Long Zhang, Wangpeng Shi, Jie Shen
Locusta has strong fly wings to ensure its long distance migration, but the molecular mechanism that regulates the Locusta wing development is poorly understood. To address the developmental mechanism of the Locusta flying wing, we cloned the Dpp target gene spalt (sal) and analyzed its function in wing growth in the Locusta. The Locusta wing size is apparently reduced with vein defects when sal is interfered by injection of dsRNA, indicating that sal is required for locust wing growth and vein formation. This function is conserved during the Drosophila wing development...
March 16, 2017: Scientific Reports
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