42 research outputs found

    Hepatic SILAC proteomic data from PANDER transgenic model

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    This article contains raw and processed data related to research published in ā€œQuantitative Proteomic Profiling Reveals Hepatic Lipogenesis and Liver X Receptor Activation in the PANDER Transgenic Modelā€ (M.G. Athanason,Ā W.A. Ratliff, D. Chaput, C.B. MarElia, M.N. Kuehl, S.M., Jr. Stevens, B.R. Burkhardt (2016)) [1], and was generated by ā€œspike-inā€ SILAC-based proteomic analysis of livers obtained from the PANcreatic-Derived factor (PANDER) transgenic mouse (PANTG) under various metabolic conditions [1]. The mass spectrometry output of the PANTG and wild-type B6SJLF mice liver tissue and resulting proteome search from MaxQuant 1.2.2.5 employing the Andromeda search algorithm against the UniprotKB reference database for Mus musculus has been deposited to the ProteomeXchange Consortium (http://www.proteomexchange.org) via the PRIDE partner repository with dataset identifiers PRIDE: PXD004171 and doi:10.6019/PXD004171. Protein ratio values representing PANTG/wild-type obtained by MaxQuant analysis were input into the Perseus processing suite to determine statistical significance using the Significance A outlier test (p<0.05). Differentially expressed proteins using this approach were input into Ingenuity Pathway Analysis to determined altered pathways and upstream regulators that were altered in PANTG mice

    Oral gavage delivery of Cornus officinalis extract delays type 1 diabetes onset and hyperglycemia in nonā€obese diabetic (NOD) mice

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    Type 1 diabetes (T1D) is an autoimmune disease initiated by genetic predisposition and environmental influences, which result in the specific destruction of insulinā€producing pancreatic Ī²ā€cells. Currently, there are over 1.6ā€‰million cases of T1D in the United States with a worldwide incidence rate that has been increasing since 1990. Here, we examined the effect of Cornusā€‰officinalis (CO), a wellā€known ethnopharmacological agent, on a T1D model of the nonā€obese diabetic (NOD) mouse. A measured dose of CO extract was delivered into 10ā€weekā€old NOD mice by oral gavage for 15ā€‰weeks. T1D incidence and hyperglycemia were significantly lower in the COā€treated group as compared to the water gavage (WT) and a no handling or treatment control group (NHT) following treatment. T1D onset per group was 30%, 60% and 86% for the CO, WT and NHT groups, respectively. Circulating Cā€peptide was higher, and pancreatic insulitis was decreased in nonā€T1D COā€treated mice. Our findings suggest that CO may have therapeutic potential as both a safe and effective interventional agent to slow early stage T1D progression

    Tumor Necrosis Factor-Ī±, Matrix-Metalloproteinases 8 and 9 Levels in the Saliva Are Associated with Increased Hemoglobin A1c in Type 1 Diabetes Subjects.

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    Type 1 diabetes (T1D) is an autoimmune disease resulting in the targeted destruction of pancreatic Ī²-cells and permanent loss of insulin production. Proper glucose management results in better clinical outcomes for T1D and provides a strong rationale to identify non-invasive biomarkers indicative or predictive of glycemic control. Therefore, we investigated the association of salivary inflammation with HbA1c in a T1D cohort.Unstimulated saliva was collected from 144 subjects with T1D at the USF Diabetes Center. BMI, duration of diabetes, and HbA1c were recorded during clinical visit. Levels of interleukin (IL)-1Ī², -6, -8, -10, IFN-Ī³, TNF-Ī±, MMP-3, -8, and -9 were measured using multiplexing immunoassay analysis. To account for smoking status, salivary cotinine levels were also determined.Multiple linear (HbA1c) and logistic (self-reported gingival condition) regression analyses were performed to examine the relationships between the Principal Component Analysis (PCA) components and HbA1c and gingival condition (adjusted for age, duration of diabetes, BMI, and sex; model for HbA1c also adjusted for gingival condition and model for gingival condition also adjusted for HbA1c). PCA components 1 (MMP-8 and MMP-9) and 3 (TNF-Ī±) were significantly associated with HbA1c (Ī² = 0.28 Ā±0.14, p = 0.045; Ī² = 0.31 Ā±0.14, p = 0.029), while PCA component 2 (IL-6, IL-1Ī², and IL-8) was significantly associated with gingival condition (OR 1.60 95% CI 1.09-2.34, p = 0.016). In general, increased salivary inflammatory burden is associated with decreased glycemic control and self-reported gingival condition.The saliva may represent a useful reservoir of novel noninvasive inflammatory biomarkers predictive of the progression and control of T1D

    \u3cem\u3eAnemarrhena asphodeloides\u3c/em\u3e Bunge and its Constituent Timosaponinā€AIII induce Cell Cycle Arrest and Apoptosis in Pancreatic Cancer Cells

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    Pancreatic cancer is one of the most recalcitrant and lethal of all cancers. We examined the effects of Anemarrhena asphodeloides (AA) and timosaponinā€AIII (TAIII), a steroidal saponin present in AA, on pancreatic cancer cell proliferation and aimed to elucidate their potential apoptotic mechanisms of action. Viability assays and cell cycle analysis revealed that both AA and TAIII significantly inhibited pancreatic cancer cell proliferation and cell cycle progression compared to treatment with gemcitabine, the standard chemotherapeutic agent for advanced pancreatic cancer. We identified a doseā€dependent increase in caspaseā€dependent apoptosis and activation of proā€apoptotic PI3K/Akt pathway proteins, with a subsequent downregulation of proā€survival PI3K/Akt pathway proteins, in pancreatic cancer cells treated with AA or TAIII over those treated with gemcitabine

    Circulating PANDER Concentration is Associated with Increased HbA1c and Fasting Blood Glucose in Type 2 Diabetic Subjects

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    Aim: PANcreatic-DERived factor (PANDER, FAM3B) is a novel hormone that regulates glucose levels via interaction with both the endocrine pancreas and liver. Prior studies examining PANDER were primarily conducted in murine models or in vitro but little is known regarding the circulating concentration of PANDER in humans, especially with regard to the association of type 2 diabetes (T2D) or overall glycemic regulation. To address this limitation, we performed a cross-sectional analysis of circulating serum PANDER concentration in association with other hormones that serve as either markers of insulin resistance (insulin and adiponectin) or to metabolic parameters of glycemic control such as fasting HbA1c and blood glucose (FBG). Methods: Fasting serum was obtained from a commercial biorepository from 300 de-identified adult subjects with 150 T2D and non-T2D adult subjects collected from a population within the United States, respectively, matched on gender, age group and race/ethnicity. Concentration of PANDER, insulin and adiponectin were measured for all samples as determined by commercial ELISA. Metadata was provided for each subject including demography, anthropometry, and cigarette and alcohol use. In addition, fasting blood glucose (FBG) and HbA1c were available on T2D subjects. Results: Multiple linear regression analyses were performed to examine the relationships between circulating log PANDER concentration on HbA1c, fasting glucose, log insulin, log HOMA-Ī² and log HOMA-IR among T2D subjects and for insulin and adiponectin in non-T2D subjects. A significant linear association was identified between PANDER with fasting HbA1c (Ī² 0.832ā€ÆĀ±ā€ÆSE 0.22, pā€Æ=ā€Æ0.0003) and FBG (Ī² 20.66ā€ÆĀ±ā€ÆSE 7.43, pā€Æ=ā€Æ0.006) within T2D subjects. However, insulin, HOMA-Ī², HOMA-IR and adiponectin (pā€Æ\u3eā€Æ0.05) were not found to be linearly associated with PANDER concentration. Conclusion:Within T2D subjects, PANDER is modestly linearly associated with increased HbA1c and FBG in a US population. In addition, highest circulating PANDER levels were measured in T2D subjects with HbA1c above 9.9. No association was identified with PANDER and insulin resistance or pancreatic Ī²-cell function in T2D subjects

    F3MB(PANDER) decreases mice hepatic triglyceride and is associated with decreased DGAT1 expression.

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    Pancreatic-derived factor (PANDER, also named as FAM3B) is secreted by pancreatic Ī± and Ī² cells. Increasing evidence suggests that it may serve a hormonal function related to glycemic and lipid metabolism. In this study, we investigated the effects of PANDER overexpression on hepatic and adipose triglyceride metabolism in high-fat diet-fed male C57BL/6 mice.PANDER overexpression was achieved by tail-vein injection of recombinant Ad-PANDER and Ad-GFP injected mice served as a control. The TG metabolism in both groups were compared.Adenoviral-mediated overexpression of PANDER did not affect body weight, food consumption, or liver enzymes. The triglyceride (TG) content of both liver and adipose tissue was significantly decreased in Ad-PANDER mice (liver: 6.16Ā±1.89 mg/g vs. control 14.95Ā±2.27 mg/g, P<0.05; adipose: 39.31Ā±1.99 mg/100mg vs. 47.22Ā±2.21 mg/100mg, P<0.05). The free fatty acid (FFA) content of adipose tissue in Ad-PANDER mice was also decreased (1.38Ā±0.18 mg/g vs. 2.77Ā±0.31 mg/g, P<0.01). The investigation of key enzymes of triglyceride hydrolysis and FFA oxidation in liver and adipose tissue showed that p-HSL/HSL was significantly increased and that DGAT1 gene and protein expression were significantly reduced in the liver of PANDER-overexpressing mice. PKA phosphorylation was also significantly increased in the livers of Ad-PANDER mice. No differences in ATGL, CPT1, ACOX1, or DGAT2 expression were observed.Overexpression of PANDER is associated with observable decreases in TG, increases in PKA phosphorylation, and decreased DGAT1 expression, suggesting a possible interrelationship. The mechanisms by which this occurs remain to be elucidated

    Multiple<sup>*</sup> logistic regression of PCA components on condition of gums (poor + fair + good vs. very good + excellent).

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    <p><sup>*</sup>Adjusted for age, duration of diabetes, HbA1c, BMI, sex.</p><p>Multiple<a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0125320#t004fn001" target="_blank"><sup>*</sup></a> logistic regression of PCA components on condition of gums (poor + fair + good vs. very good + excellent).</p

    Principal components analysis with orthogonal rotation of the individual cytokines and MMPs.

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    <p>*Factor loads are determined by the pearson correlation coefficient of the marker on the component.</p><p><sup>ā€ </sup>Factor loads >0.6 were considered for the interpretation of the component.</p><p>Principal components analysis with orthogonal rotation of the individual cytokines and MMPs.</p

    Multiple<sup>*</sup> linear regression of PCA components on HbA1c.

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    <p><sup>*</sup>Adjusted for age, duration, BMI, sex, and gingival condition.</p><p>Multiple<a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0125320#t003fn001" target="_blank"><sup>*</sup></a> linear regression of PCA components on HbA1c.</p
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