137 research outputs found

    Circulating long noncoding RNA GAS5 levels are correlated to prevalence of type 2 diabetes mellitus

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    AbstractBackgroundDiabetes mellitus (DM), a metabolic disease, is characterized by impaired fasting glucose levels. Type 2 DM is adult onset diabetes. Long non-coding RNAs (lncRNAs) regulate gene expression and multiple studies have linked lncRNAs to human diseases.MethodsSerum samples obtained from 96 participating veterans at JAH VA were deposited in the Research Biospecimen Repository. We used a two-stage strategy to identify an lncRNA whose levels correlated with T2DM. Initially we screened five serum samples from diabetic and non-diabetic individuals using lncRNA arrays. Next, GAS5 lncRNA levels were analyzed in 96 serum samples using quantitative PCR. Receiver operating characteristic (ROC) analysis was performed to determine the optimal cutoff GAS5 for diagnosis of DM.ResultsOur results demonstrate that decreased GAS5 levels in serum were associated with diabetes in a cohort of US military veterans. The ROC analysis revealed an optimal cutoff GAS5 value of less than or equal to 10. qPCR results indicated that individuals with absolute GAS5<10ng/ÎŒl have almost twelve times higher odds of having diabetes (Exact Odds Ratio [OR]=11.79 (95% CI: 3.97, 37.26), p<0.001). Analysis indicated area under curve (AUC) of ROC of 0.81 with 85.1% sensitivity and 67.3% specificity in distinguishing non-diabetic from diabetic subjects. The positive predictive value is 71.4%.ConclusionlncRNA GAS5 levels are correlated to prevalence of T2DM.General SignificanceAssessment of GAS5 in serum along with other parameters offers greater accuracy in identifying individuals at-risk for diabetes

    Groundwater Laws and Regulations: A Preliminary Survey of Thirteen U.S. States (Second Edition)

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    This report presents results of a study investigating the groundwater laws and regulations of thirteen U.S. states. The report is actually the second edition of the study following amendments made to the first edition in response to extensive feedback and reviews solicited from practitioners, academics, and other professionals working in the field of water law from across the country. The purpose of the project is to compile and present the groundwater laws and regulations of every state in the United States that could then be used in a series of comparisons of groundwater governance principles, strategies, issues, and challenges. Professor Gabriel Eckstein at Texas A&M University School of Law and Professor Amy Hardberger at Saint Mary’s University Law School developed a matrix to ascertain chief components and characteristics of the groundwater legal regime of each state. Student researchers then used the matrix to respond to a standardized set of questions about the groundwater laws and regulations of a selection of states. In the near future, additional volumes with surveys of other U.S. states will be issued

    The impact of targeting TRAF2 and NCK-interacting protein kinase (TNIK) on anti-tumor effect in small cell lung cancer

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    View full abstracthttps://openworks.mdanderson.org/leading-edge/1056/thumbnail.jp

    CT-based online adaptive radiotherapy improves target coverage and organ at risk (OAR) avoidance in stereotactic body radiation therapy (SBRT) for prostate cancer

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    INTRODUCTION: Stereotactic body radiation therapy (SBRT) is an emerging treatment modality for clinically localized prostate cancer (PCa). Online daily adaptive radiotherapy (ART) could potentially improve the therapeutic ratio of prostate SBRT by accounting for inter-fraction variation in target and OAR volumes. To our knowledge, no group has evaluated the clinical utility of a novel AI-augmented CT-based ART system for prostate SBRT. In this study we hypothesized that adaptive prostate SBRT plans would result in improved target coverage and lower dose to OARs in comparison to unadapted treatment plans. METHODS: Seven patients with favorable intermediate to oligometastatic PCa treated with 5-fx prostate adaptive SBRT were retrospectively reviewed. Patients were treated with 3625 cGy to the prostate and seminal vesicles. 6 patients additionally received 2500 cGy to the pelvic nodes, 5 patients underwent a boost to 4000 cGy to the prostate. For each fraction, a CBCT was acquired and OARs (rectum, bladder, bowel, sigmoid, femurs) were segmented/deformed using AI. CTVs were rigidly registered. Volumes were adjusted manually and PTV expansions added. Adaptive treatment plans were developed based on the contoured targets and OARs and dose to these volumes for the adapted vs. initial plans were compared for each fraction. V100 and the D0.03 cc between scheduled and adapted treatment plans were compared using a Student\u27s RESULTS: Seven patients completed 35 Fx\u27s of adaptive RT. Daily adaptation resulted in a statistically significant mean improvement in PTV V100 for all targets: [21.4 % ± 4.3 % for PTV 4000 (p \u3c 0.0001); 8.7 % ± 1.1 % for PTV 3625 (p \u3c 0.0001); and 11.5 % ± 3.1 % for PTV 2500 (p = 0.0013)]. Mean rectal D0.03 was significantly reduced by 38.8 cGy ± 5.95 cGy (p \u3c 0.0001) per fraction (194 cGy/5 fractions) compared to the initial plans. There was a modest increase in bladder dose of 10.9 cGy ± 4.93 cGy per fraction (p = 0.0424) for the adaptive plans. The adaptive plans met bladder constraints for every fraction. There were no statistically significant differences between sigmoid or bowel dose for adapted vs. initial plans. No patients experienced acute CTCAE grade ≄ 3 GI/GU adverse events (median F/U 9.5 months). All statistically significant differences were maintained in the presence and absence of rectal hydrogel spacer (p \u3c 0.05). CONCLUSIONS: CT-based online adaptive SBRT resulted in statistically significant and clinically meaningful improvements in PTV coverage and D0.03 cc dose to the rectum. A trial evaluating CT adaptive whole-pelvis prostate SBRT is underway

    PDGFRA defines the mesenchymal stem cell Kaposi's sarcoma progenitors by enabling KSHV oncogenesis in an angiogenic environment

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    Kaposi’s sarcoma (KS) is an AIDS-defining cancer caused by the KS-associated herpesvirus (KSHV). Unanswered questions regarding KS are its cellular ontology and the conditions conducive to viral oncogenesis. We identify PDGFRA(+)/SCA-1(+) bone marrow-derived mesenchymal stem cells (Pα(+)S MSCs) as KS spindle-cell progenitors and found that pro-angiogenic environmental conditions typical of KS are critical for KSHV sarcomagenesis. This is because growth in KS-like conditions generates a de-repressed KSHV epigenome allowing oncogenic KSHV gene expression in infected Pα(+)S MSCs. Furthermore, these growth conditions allow KSHV-infected Pα(+)S MSCs to overcome KSHV-driven oncogene-induced senescence and cell cycle arrest via a PDGFRA-signaling mechanism; thus identifying PDGFRA not only as a phenotypic determinant for KS-progenitors but also as a critical enabler for viral oncogenesis.Fil: Naipauer, Julian. Miami University; Estados Unidos. Consejo Nacional de Investigaciones CientĂ­ficas y TĂ©cnicas; Argentina. Sylvester Comprehensive Cancer Center and Miami Center for AIDS Research; Estados UnidosFil: Rosario, Santas. Miami University; Estados Unidos. Sylvester Comprehensive Cancer Center and Miami Center for AIDS Research; Estados UnidosFil: Gupta, Sachin. Miami University; Estados Unidos. Sylvester Comprehensive Cancer Center and Miami Center for AIDS Research; Estados UnidosFil: Premer, Courtney. Miami University; Estados UnidosFil: MĂ©ndez SolĂ­s, Omayra. Miami University; Estados Unidos. Sylvester Comprehensive Cancer Center and Miami Center for AIDS Research; Estados UnidosFil: Schlesinger, Mariana. Miami University; Estados Unidos. Sylvester Comprehensive Cancer Center and Miami Center for AIDS Research; Estados Unidos. Consejo Nacional de Investigaciones CientĂ­ficas y TĂ©cnicas; ArgentinaFil: Ponzinibbio, Maria Virginia. Miami University; Estados Unidos. Sylvester Comprehensive Cancer Center and Miami Center for AIDS Research; Estados Unidos. Consejo Nacional de Investigaciones CientĂ­ficas y TĂ©cnicas; ArgentinaFil: Jain, Vaibhav. University of Florida; Estados UnidosFil: Gay, Lauren. University of Florida; Estados UnidosFil: Renne, Rolf. University of Florida; Estados UnidosFil: Chan, Ho Lam. Miami University; Estados UnidosFil: Morey, Lluis. Miami University; Estados UnidosFil: Salyakina, Daria. Miami University; Estados Unidos. Sylvester Comprehensive Cancer Center and Miami Center for AIDS Research; Estados UnidosFil: Abba, MartĂ­n Carlos. Miami University; Estados Unidos. Universidad Nacional de La Plata. Facultad de Ciencias MĂ©dicas. Centro de Investigaciones InmunolĂłgicas BĂĄsicas y Aplicadas; Argentina. Consejo Nacional de Investigaciones CientĂ­ficas y TĂ©cnicas; ArgentinaFil: Williams, Sion. Miami University; Estados UnidosFil: Hare, Joshua M.. Miami University; Estados UnidosFil: Goldschmidt Clermont, Pascal. Miami University; Estados UnidosFil: Mesri, Enrique Alfredo. Sylvester Comprehensive Cancer Center and Miami Center for AIDS Research; Estados Unidos. Miami University; Estados Unido
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