2,853 research outputs found

    The role of ras gene in the development of haemic neoplasia in Mytilus trossulus

    Get PDF
    Disseminated neoplasia has been reported in mussels (Mytilus spp) from numerous locations worldwide. This condition is progressive and fatal and the aetiology is unknown. In vertebrates, oncogenes such as ras, and tumour suppressor genes such as p53, play important roles in carcinogenesis. We have cloned a Mytilus trossulus homologue of the vertebrate ras gene, which shows conserved sequence in regions of functional importance. Neoplastic hemolymph samples derived from M. trossulus have been investigated for the presence of ras gene mutations and changes in expression

    Daytime temperature is sensed by phytochrome B in Arabidopsis through a transcriptional activator HEMERA.

    Get PDF
    Ambient temperature sensing by phytochrome B (PHYB) in Arabidopsis is thought to operate mainly at night. Here we show that PHYB plays an equally critical role in temperature sensing during the daytime. In daytime thermosensing, PHYB signals primarily through the temperature-responsive transcriptional regulator PIF4, which requires the transcriptional activator HEMERA (HMR). HMR does not regulate PIF4 transcription, instead, it interacts directly with PIF4, to activate the thermoresponsive growth-relevant genes and promote warm-temperature-dependent PIF4 accumulation. A missense allele hmr-22, which carries a loss-of-function D516N mutation in HMR's transcriptional activation domain, fails to induce the thermoresponsive genes and PIF4 accumulation. Both defects of hmr-22 could be rescued by expressing a HMR22 mutant protein fused with the transcriptional activation domain of VP16, suggesting a causal relationship between HMR-mediated activation of PIF4 target-genes and PIF4 accumulation. Together, this study reveals a daytime PHYB-mediated thermosensing mechanism, in which HMR acts as a necessary activator for PIF4-dependent induction of temperature-responsive genes and PIF4 accumulation

    The Kansas Demonstration to Maintain Independence and Employment: Preventing or Forestalling Disability Among Participants in the Kansas High Risk Insurance Pool

    Get PDF
    Section 204 of TWWIIA authorized the development of another program targeted at disability prevention. Demonstrations to Maintain Independence and Employment (DMIEs) provide health care coverage to working people iwth potentially disabling conditions to test the hypothesis that providing health care and other supports can prevent or forestall the onset of full disability and eventual dependence on federal disability program

    Historical Disability Outcomes of Enrollees in the Kansas High Risk Pool: A White Paper presented to CMS by the Kansas DMIE Project January, 2006

    Get PDF
    This white paper reports the historical rates of disability outcomes (e.g., transition to Social Security disability status) for people enrolled in Kansas' state high-risk health insurance pool.Centers for Medicare & Medicaid Services; Kansas Health Policy Authorit

    Transition to Medicare Part D: An Early Snapshot of Barriers Experienced by Younger Dual Eligibles With Disabilities

    Get PDF
    Transition to Medicare Part D affected not only 35.4 million elderly enrollees but also 6.4 million younger enrollees with disabilities, 2.5 million of whom have low incomes and previously obtained medications through Medicaid. Because Part D was conceived primarily as a benefit for elders, we sought to examine its effects on a dually eligible, younger group of beneficiaries who have significantly different, more expensive, and often unstable health conditions

    Health Care Behaviors and Decision-Making Processes Among Enrollees In A State High Risk Insurance Pool: Focus Group Findings

    Get PDF
    Purpose-To better understand the relationship between health insurance coverage and health care behaviors of persons with potentially disabling conditions enrolled in a state high risk insurance pool. Approach or Design-Six focus groups with risk pool enrollees in two sites. Setting-Suburban areas in the state of Kansas. Participants-Forty-two individuals ages 29 to 62 years, all with potentially disabling physical or mental health conditions. Method-Qualitative analysis of focus group transcripts using pile sorting and theme identification. Results-High premiums and deductibles limit participantsā€™ ability to afford basic health services and access to prescription medications despite their middle-class socioeconomic status. Participants report delaying or forgoing needed medical care due to lack of coverage and/or out-of-pocket costs. They employ numerous and potentially dangerous strategies to minimize costs, especially for prescription medications. Some report ā€œsaving upā€ needed procedures until their total costs will exceed that yearā€™s deductible. Conclusion-Individuals in the risk pool were making medical decisions on the basis of cost rather than need. Many shared stories of medical complications as a result of delayed care and most expressed stress related to the difficulty of making decisions about their care and use of prescribed medications. The individual, nongroup insurance market, with its higher out-of-pocket costs, may not meet the needs of people with chronic health conditions.Kansas Health Policy Authority, U.S. Department of Health and Human Services, Centers for Medicare and Medicaid Services (11-P-92389/7-01

    Unintended Consequences: The Potential Impact of Medicare Part D on Dual Eligibles with Disabilities in Medicaid Work Incentive Programs

    Get PDF
    Common sense suggests that a safety net is required for situations in which enrollees are unable to obtain critical or life-sustaining medications. Such situations can arise when either the drug is not on formulary and/or is being used off-label and the appeals process has been exhausted, or when patients cannot afford the co-payments for the numerous medications they need. Given the vulnerability of this population, immediate action is needed to address these issues in the short time remaining before Part D is implemented
    • ā€¦
    corecore