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https://www.readbyqxmd.com/read/28423937/concordance-of-several-subcellular-interactions-initiates-alzheimer-s-dementia-their-reversal-requires-combination-treatment
#1
W J Fessel
The pathogenesis of Alzheimer's disease involves multiple pathways that, at the macrolevel, include decreased proliferation plus increased loss affecting neurons, astrocytes, and capillaries and, at the subcellular level, involve several elements: amyloid/amyloid precursor protein, presenilins, the unfolded protein response, the ubiquitin/proteasome system, the Wnt/catenin system, the Notch signaling system, mitochondria, mitophagy, calcium, and tau. Data presented show the intimate, anatomical interactions between neurons, astrocytes, and capillaries; the interactions between the several subcellular factors affecting those cells; and the treatments that are currently available and that might correct dysfunctions in the subcellular factors...
May 2017: American Journal of Alzheimer's Disease and Other Dementias
https://www.readbyqxmd.com/read/28421983/comparative-study-between-multivariate-and-univariate-analysis-of-two-antidiabetic-combinations
#2
Maha F Abdel-Ghany, Omar Abdel-Aziz, Miriam F Ayad, Mariam M Tadros
New multivariate and univariate methods were developed for the analysis of two novel gliptin combinations by manipulating the zero-order and ratio spectra of empagliflozin and linagliptin in combination, with application on Glyxambi(®) tablets, and of alogliptin and pioglitazone in combination, with application on Oseni(®) tablets. Linearity ranges for chemometric approaches using principal component regression and partial least-squares were found to be 2–10, 2.5–12.5, 5–15, and 5–25 μg/mL for empagliflozin, linagliptin, alogliptin, and pioglitazone, respectively, whereas the respective linearity ranges for the spectrophotometric approaches were found to be 5–15, 2–12, 5–15, and 5–15 μg/mL...
April 18, 2017: Journal of AOAC International
https://www.readbyqxmd.com/read/28420166/hypaphorine-attenuates-lipopolysaccharide-induced-endothelial-inflammation-via-regulation-of-tlr4-and-ppar-%C3%AE-dependent-on-pi3k-akt-mtor-signal-pathway
#3
Haijian Sun, Xuexue Zhu, Weiwei Cai, Liying Qiu
Endothelial lesion response to injurious stimuli is a necessary step for initiating inflammatory cascades in blood vessels. Hypaphorine (Hy) from different marine sources is shown to exhibit anti-inflammatory properties. However, the potential roles and possible molecular mechanisms of Hy in endothelial inflammation have yet to be fully clarified. We showed that Hy significantly inhibited the positive effects of lipopolysaccharide (LPS) on pro-inflammatory cytokines expressions, including tumor necrosis factor-α (TNF-α), interleukin-1β (IL-1β), monocyte chemoattractant protein 1 (MCP-1) and vascular cellular adhesion molecule-1 (VCAM-1), as well as induction of the phosphorylation of Akt and mTOR in HMEC-1 cells...
April 17, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28419516/systemic-and-local-anti-nociceptive-effects-of-simvastatin-in-the-rat-formalin-assay-role-of-peroxisome-proliferator-activated-receptor-%C3%AE-and-nitric-oxide
#4
Mohammad Taghi Mansouri, Bahareh Naghizadeh, Behnam Ghorbanzadeh, Soheila Alboghobeish
This study aimed to determine the potential systemic and local anti-nociceptive effects of simvastatin (SIM) and the possible role of peroxisome proliferator-activated receptor gamma (PPARγ) and nitric oxide (NO) pathways using a formalin assay in rats. After allocation, rats were intraplantarly (i.pl.) treated with formalin solution (2.5%) and the flinching behaviors were recorded for 5 min (phase 1) and 15-60 min (phase 2). SIM was given intraperitoneally (i.p.) and i.pl. 30 and 20 min before test, respectively...
April 17, 2017: Journal of Neuroscience Research
https://www.readbyqxmd.com/read/28416142/nanoparticle-mediated-drug-delivery-system-for-atherosclerotic-cardiovascular-disease
#5
REVIEW
Tetsuya Matoba, Jun-Ichiro Koga, Kaku Nakano, Kensuke Egashira, Hiroyuki Tsutsui
Administration of drugs and other therapeutic agents has been the central strategy of contemporary medicine for cardiovascular disease. The use of drug delivery systems (DDS) includes micelles, liposomes, polymeric nanoparticles, dendrimers, carbon nanotubes, and crystalline metals. Nano-DDS modify in vivo drug kinetics, depending on (patho)physiological mechanisms such as retard excretion, vascular permeability, and incorporation by mononuclear phagocyte systems, which constitute the 'passive-targeting' property of nano-DDS...
April 13, 2017: Journal of Cardiology
https://www.readbyqxmd.com/read/28415730/a-polymorphism-at-igf1-locus-is-associated-with-anemia
#6
Maria Adelaide Marini, Gaia Chiara Mannino, Teresa Vanessa Fiorentino, Francesco Andreozzi, Francesco Perticone, Giorgio Sesti
In vitro and in vivo studies suggest that IGF-1 has a role in erythropoiesis. There is evidence that the rs35767 C/T polymorphism near IGF1 is associated with plasma IGF-1 levels. We investigated the effect of this polymorphism on hemoglobin (Hb) concentration and anemia. The study group comprised 3286 adult Whites. The rs35767 polymorphism was screened using a TaqMan allelic discrimination assay. The rs35767 polymorphism was not associated with age, gender, BMI, waist circumference, smoking, blood pressure, plasma glucose, HbA1c, type 2 diabetes, HOMA-IR, hsCRP, eGFR, and lipid profile...
March 11, 2017: Oncotarget
https://www.readbyqxmd.com/read/28404113/pathogenesis-and-novel-treatment-options-for-non-alcoholic-steatohepatitis
#7
REVIEW
Vincent Wai-Sun Wong, Shiv Chitturi, Grace Lai-Hung Wong, Jun Yu, Henry Lik-Yuen Chan, Geoffrey C Farrell
Non-alcoholic fatty liver disease affects 20-40% of the population. Its active form, non-alcoholic steatohepatitis (NASH), is characterised by hepatocyte injury, liver inflammation, and progression of fibrosis, and has emerged as one of the most important causes of liver failure and hepatocellular carcinoma. Weight reduction of 10% by dietary restriction and regular exercise is sufficient to reverse NASH in most patients, but in practice this reduction is often not achieved. Available drugs such as vitamin E, pioglitazone, and pentoxifylline have borderline efficacy, but are limited by potential side-effects and toxicities, and do not improve liver fibrosis...
September 2016: Lancet. Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/28397719/toll-like-receptor-4-signaling-pathway-in-the-protective-effect-of-pioglitazone-on-experimental-immunoglobulin-a-nephropathy
#8
Jia-Nan Zou, Jing Xiao, Sha-Sha Hu, Chen-Sheng Fu, Xiao-Li Zhang, Zhen-Xing Zhang, Yi-Jun Lu, Wei-Jun Chen, Zhi-Bin Ye
BACKGROUND: In vitro experiments have revealed that toll-like receptor 4 (TLR4) pathway is involved in the progression of immunoglobulin A nephropathy (IgAN) by induction of proinflammatory cytokines. Evidence showed that, in other disease models, peroxisome proliferator-activated receptor-γ (PPAR-γ) agonists have been shown to exert anti-inflammatory effects through suppression of the expression and activity of TLR4. However, the interaction between PPAR-γ and TLR4 in IgAN has not been fully studied both in vitro and in vivo...
April 20, 2017: Chinese Medical Journal
https://www.readbyqxmd.com/read/28386331/pkc-nadph-oxidase-are-involved-in-the-protective-effect-of-pioglitazone-in-high-homocysteine-induced-paracrine-dyfunction-in-endothelial-progenitor-cells
#9
Shengjie Xu, Yanbo Zhao, Chongying Jin, Lu Yu, Fang Ding, Guosheng Fu, Junhui Zhu
Increasing evidence suggests that EPCs improve neovascularization and endothelial regeneration via the production of paracrine factors. VEGF and IL-8 are major cytokines involved in EPC-mediated angiogenesis and re-endothelialization. In our previous studies, Hcy impaired EPC migratory and adhesive activities. We devised this study to determine whether Hcy could affect the expression and secretion of VEGF and IL-8 from EPCs. We found that high levels of Hcy (100-500 μM) decreased the EPC-mediated protein secretion and mRNA expression of VEGF and IL-8...
2017: American Journal of Translational Research
https://www.readbyqxmd.com/read/28381265/thiazolidinedione-use-and-atrial-fibrillation-in-diabetic-patients-a-meta-analysis
#10
Zhiwei Zhang, Xiaowei Zhang, Panagiotis Korantzopoulos, Konstantinos P Letsas, Gary Tse, Mengqi Gong, Lei Meng, Guangping Li, Tong Liu
BACKGROUND: Accumulating evidence suggests that thiazolidinediones (TZDs) may exert protective effects in atrial fibrillation (AF). The present meta-analysis investigated the association between TZD use and the incidence of AF in diabetic patients. METHODS: Electronic databases were searched until December 2016. Of the 346 initially identified records, 3 randomized clinical trials (RCTs) and 4 observational studies with 130,854 diabetic patients were included in the final analysis...
April 5, 2017: BMC Cardiovascular Disorders
https://www.readbyqxmd.com/read/28365473/pioglitazone-treatment-following-spinal-cord-injury-maintains-acute-mitochondrial-integrity-and-increases-chronic-tissue-sparing-and-functional-recovery
#11
Samir P Patel, David H Cox, Jenna L Gollihue, William M Bailey, Werner J Geldenhuys, John C Gensel, Patrick G Sullivan, Alexander G Rabchevsky
Pioglitazone is an FDA-approved PPAR-γ agonist drug used to treat diabetes, and it has demonstrated neuroprotective effects in multiple models of central nervous system (CNS) injury. Acute treatment after spinal cord injury (SCI) in rats is reported to suppress neuroinflammation, rescue injured tissues, and improve locomotor recovery. In the current study, we additionally assessed the protective efficacy of pioglitazone treatment on acute mitochondrial respiration, as well as functional and anatomical recovery after contusion SCI in adult male C57BL/6 mice...
March 30, 2017: Experimental Neurology
https://www.readbyqxmd.com/read/28361819/pioglitazone-utilization-efficacy-safety-in-indian-type-2-diabetic-patients-a-systematic-review-comparison-with-european-medicines-agency-assessment-report
#12
REVIEW
Sarayu A Pai, Nilima A Kshirsagar
BACKGROUND & OBJECTIVES: With pioglitazone ban and subsequent revoking in India along with varying regulatory decisions in other countries, it was decided to carry out a systematic review on its safety, efficacy and drug utilization in patients with type 2 diabetes mellitus (T2DM) in India and compare with the data from the European Medicines Agency Assessment Report (EMA-AR). METHODS: Systematic review was performed as per the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines, searching Medline/PubMed, Google Scholar and Science Direct databases using 'pioglitazone AND India AND human' and 'pioglitazone AND India AND human AND patient' and compared with EMA-AR...
November 2016: Indian Journal of Medical Research
https://www.readbyqxmd.com/read/28356907/neuroprotective-effect-and-mechanism-of-thiazolidinedione-on-dopaminergic-neurons-in-vivo-and-in-vitro-in-parkinson-s-disease
#13
Yanqin Wang, Weilin Zhao, Ge Li, Jinhu Chen, Xin Guan, Xi Chen, Zhenlong Guan
The aim of the present study was to gain insight into the neuroprotection effects and mechanism of thiazolidinedione pioglitazone in both in vitro and in vivo MPP(+)/MPTP induced PD models. In vivo experimental results showed that oral treatment of pioglitazone resulted in significant improvements in behavior symptoms damaged by MPTP and increase in the survival of TH positive neurons in the pioglitazone intervention groups. In addition, oral treatment of pioglitazone increased the expression of peroxisome proliferator-activated receptor-γ coactivator of 1α (PGC-1α) and increased the number of mitochondria, along with an observed improvement in mitochondrial ultrastructure...
2017: PPAR Research
https://www.readbyqxmd.com/read/28347792/ppar%C3%AE-agonists-use-and-recurrence-of-atrial-fibrillation-after-successful-electrical-cardioversion
#14
Jun Gu, Wei Hu, Zhi-Ping Song, Xu Liu, Da-Dong Zhang
Inflammation is associated with atrial fibrillation (AF) and peroxisome proliferators activated receptor-gamma (PPARγ) agonists have anti-inflammatory properties. We tested if pioglitazone reduced AF recurrence after electrical cardioversion (EC) by modifying systemic inflammation. In this randomized and prospective trial, patients with persistent AF and type 2 diabetes mellitus were randomized into pioglitazone group (n=48) or control group (n=49) before EC. Treatment was continued for 3 months or until AF recurred...
March 24, 2017: Hellenic Journal of Cardiology: HJC, Hellēnikē Kardiologikē Epitheōrēsē
https://www.readbyqxmd.com/read/28342366/discovery-of-new-dual-ppar%C3%AE-gpr40-agonists-with-robust-antidiabetic-activity-design-synthesis-and-in-combo-drug-evaluation
#15
Sergio Hidalgo-Figueroa, Gabriel Navarrete-Vázquez, Samuel Estrada-Soto, Diana Giles-Rivas, Francisco J Alarcón-Aguilar, Ismael León-Rivera, Abraham Giacoman-Martínez, Elizabeth Miranda Pérez, Julio C Almanza-Pérez
The design of compounds 1 and 2 was based on the similar scaffold of pharmacophoric groups for PPARγ and GPR40 agonists. In order to find new compounds with improved biological activity, the current manuscript describes a new dual PPARγ-GPR40 agonist. We synthesized two compounds, which were prepared following a multistep synthetic route, and the relative mRNA expression levels of PPARγ, GLUT4, and GPR40 were quantified in cell culture, as well as insulin secretion and [Ca(2+)] intracellular levels. Compound 1 showed a 7-times increase in the mRNA expression of PPARγ, which in turn enhanced the expression levels of GLUT4 respect to control and pioglitazone...
March 22, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28340963/pioglitazone-in-patients-with-insulin-resistance-after-ischemic-stroke-or-transient-ischemic-attack-a-comment-on-the-iris-trial
#16
EDITORIAL
Niki Katsiki, Dimitri P Mikhailidis
No abstract text is available yet for this article.
January 2017: Journal of Diabetes and its Complications
https://www.readbyqxmd.com/read/28340451/the-role-of-drug-drug-interactions-in-prostate-cancer-treatment-focus-on-abiraterone-acetate-prednisone-and-enzalutamide
#17
REVIEW
Marzia Del Re, Stefano Fogli, Lisa Derosa, Francesco Massari, Paul De Souza, Stefania Crucitta, Sergio Bracarda, Daniele Santini, Romano Danesi
Elderly patients with cancer may have comorbidities, each requiring additional pharmacologic treatment. Therefore, the occurrence of pharmacokinetic (PK) and pharmacodynamic (PD) interactions is very likely, and the risk of adverse reactions (ADRs), due to the narrow therapeutic window of anticancer drugs, is increased. Drug-drug interactions (DDIs) may occur in prostate cancer patients due to inhibition by abiraterone of liver cytochrome P450 (CYP)-dependent enzymes CYP2C8 and 2D6, which are involved in the metabolism of approximately 25% of all drugs, and induction by enzalutamide of CYP3A4, 2C9 and 2C19, which metabolize up to 50% of medications...
March 9, 2017: Cancer Treatment Reviews
https://www.readbyqxmd.com/read/28337819/pai-1-in-granulosa-cells-is-suppressed-directly-by-statin-and-indirectly-by-suppressing-tgf-%C3%AE-and-tnf-%C3%AE-in-mononuclear-cells-by-insulin-sensitizing-drugs
#18
Kaori Yamada-Nomoto, Osamu Yoshino, Ikumi Akiyama, Akira Iwase, Yosuke Ono, Tomoko Nakamura, Miyuki Harada, Akitoshi Nakashima, Tomoko Shima, Akemi Ushijima, Yutaka Osuga, Russell Jeffrey Chang, Shunichi Shimasaki, Shigeru Saito
PROBLEM: Plasminogen activator inhibitor-1 (PAI-1) is elevated in women with polycystic ovary syndrome (PCOS), but the regulation in granulosa cells (GCs) is unclear. METHOD OF STUDY: PAI-1 expression in PCOS ovaries was investigated immunohistologically. PAI-1 expressions in HGrC1, a human GC cell line, were investigated at mRNA and activity levels. The expressions of TGF-β and TNF-α in peritoneal fluid mononuclear cells (PFMCs) were measured with quantitative PCR...
March 24, 2017: American Journal of Reproductive Immunology: AJRI
https://www.readbyqxmd.com/read/28336578/quantitative-prediction-of-cyp3a4-induction-impact-of-measured-free-and-intracellular-perpetrator-concentrations-from-human-hepatocyte-induction-studies-on-drug-drug-interaction-predictions
#19
Yongkai Sun, Paresh P Chothe, Jennifer Sager, Hong Tsao, Amanda Moore, Leena Laitinen, Niresh Hariparsad
Typically, concentration-response curves are generated based upon nominal new chemical entity (NCE) concentrations for in-vitro-to-in-vivo extrapolation of CYP3A4 induction. These data are then used to determine the induction risk of an NCE employing various modeling approaches. The limitation to this practice is that it assumes the hepatocyte culture model to be a static system. In the current study, we assessed whether correcting for; 1) changes in perpetrator concentration in the induction medium during the assay incubation period, 2) perpetrator binding to proteins in the induction medium and 3) non-specific binding of perpetrator can improve the accuracy of CYP3A4 induction predictions...
March 23, 2017: Drug Metabolism and Disposition: the Biological Fate of Chemicals
https://www.readbyqxmd.com/read/28333739/updated-review-confirms-potential-risk-of-bladder-cancer-with-pioglitazone
#20
Diane S Aschenbrenner
No abstract text is available yet for this article.
April 2017: American Journal of Nursing
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