245 research outputs found
Using a family systems approach to treat tobacco use among cancer patients
Tobacco use treatment is an essential component of cancer care. Family members play a significant role in smoking behavior, but more research is needed regarding the development, implementation, and impact of family-based interventions in cancer care. The UNC Tobacco Treatment Program conducted an 18-month pilot study to examine the feasibility of implementing a family systems approach to treat tobacco use among patients at the North Carolina Cancer Hospital and to measure the impact of such an approach on patient abstinence. Implementation included four phases: (1) modifying the electronic health record and monthly report generated from the electronic health record; (2) training Tobacco Treatment Specialists to provide family counseling; (3) integrating family members into patients’ treatment; and (4) conducting six-month follow-up calls. During the course of the study, 42% (N = 221/532) of patients had family members integrated into their tobacco use treatment. Only 21 patients (4%) had family members present but not integrated into the treatment plan. At the six-month follow up time point, the seven-day point-prevalence quit rate for patients with family integration was 28% (N = 56/200), compared to 23% (N = 67/291) (p = 0.105) for patients without family integration. Integration of family members is clearly possible in an academic medical center’s oncology tobacco treatment program. Although pilot results were not statistically significant at 6 months, a potentially higher quit rate suggests a need for expanded research on methods to integrate family members in oncology settings for patients with tobacco-related cancers
Case Study: Use of Electronic Nicotine Delivery Systems (ENDS) By a Pregnant Woman
Introduction: The use of electronic nicotine delivery systems (ENDS) such as electronic cigarettes, vapour cigarettes, and vapour/hookah pens is rapidly increasing. The effectiveness of ENDS for smoking cessation and their safety, particularly amongst pregnant women, is largely unknown. Some women who use tobacco products in pregnancy, such as the one described in this case study, switch to ENDS assuming they are a safer alternative to smoking traditional cigarettes. Many obstetric providers do not screen for ENDS use and may miss an opportunity to counsel their patients about ENDS usage, side effects, or alternatives. Case Description: Motivated by concern for her baby's health, a 28-year-old patient reduced consumption of traditional cigarettes and began using ENDS shortly after learning she was pregnant. Her obstetric team did not screen for ENDS use and was unaware that she had started using ENDS. During the postpartum period, her providers ordered a tobacco cessation consult and the tobacco treatment specialist (TTS) discovered the patient's ENDS use as well as her desire to quit. Conclusions: In the absence of consistent screening by providers and a lack of safety data regarding ENDS use during pregnancy, women are often given little guidance in deciphering the potential risks and benefits of ENDS use. In this case, the patient turned to ENDS because she thought it was safer than smoking tobacco cigarettes and was unaware that there is limited research on ENDS safety. This case highlights the importance of updating clinical screening tools to include ENDS and the need for further research investigating the safety of ENDS use during pregnancy
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Probability and consequences of accidents in the nuclear fuel cycle
>From winter meeting of American Society of Mechanical Engineers; Detroit, Michigan, USA (11 Nov 1973). The probability of accidents occurring in the nuclear fuel cycle is examined by considering: projected number of shipments of nuclear materials for power reactors (excluding breeder and gascooled reactors); transport by truck, rail, aircraft, and barge; and statistics on the frequency and severity of accidents in each of these modes of transport. The consequences of accidents involving nuclear fuel cycle materials are discussed in terms of package integrity; estimates of radioactivity releases; radiation doses to humans from estimated releases of radioactive materials; and environmental contamination from accidental radioactivity releases. (LCL
A lean quality improvement initiative to enhance tobacco use treatment in a cancer hospital
Sustained tobacco use after cancer diagnosis decreases treatment effectiveness while increasing treatment side effects, primary cancer recurrence, and the occurrence of secondary cancers. Delivering tobacco use treatment to fewer patients due to inefficient workflow represents missed opportunities to deliver life-saving care. In 2017, the National Cancer Institute initiated the Cancer Cessation Initiative (C3I) to push new tobacco cessation resources into cancer centers across the United States. This grant allowed the University of North Carolina Tobacco Treatment Program (UNC TTP) to dramatically expand tobacco use treatment (TUT) services to patients at the North Carolina Cancer Hospital (NCCH). With this push, the team saw an opportunity to utilize Lean Six Sigma, a set of quality improvement (QI) tools, to streamline their processes and uncover the root causes of program inefficiencies. A 12-month QI project using the Lean A3 problem-solving tool was implemented to examine the team’s workflow. The study team mapped out the processes and, as a result, developed multiple “experiments” to test within the NCCH to address workflow efficiency and clinical reach. Outcome measures from the baseline to follow-up included: (1) the number of new patient referrals per month, and (2) the number of counseling sessions delivered per month. From the baseline to final state, the team’s referrals increased from a mean of 10 to 24 per month, and counseling sessions increased from a mean of 74 to 84 per month. This project provided a deeper understanding of how workflow inefficiencies can be eliminated in the clinical setting, how technology can be harnessed to increase reach, and finally, that soliciting and using feedback from NCCH leadership can remove barriers and improve patient care
Using Lean Quality Improvement Tools to Increase Delivery of Evidence-Based Tobacco Use Treatment in Hospitalized Neurosurgical Patients
Background Health care providers routinely undertreat tobacco dependence, indicating a need for innovative ways to increase delivery of evidence-based care. Lean, a set of quality improvement (QI) tools used increasingly in health care, can help streamline processes, create buy-in for use of evidence-based practices, and lead to the identification of solutions on the basis of a problem's root causes. To date, no published research has examined the use of Lean tools in tobacco dependence. A 12-month QI project using Lean tools was conducted to increase delivery of evidence-based tobacco use treatment (TUT) to hospitalized neurosurgical patients. Methods The study team developed a nicotine replacement therapy (NRT) and counseling protocol for neurosurgery inpatients who indicated current tobacco use and used Lean tools to increase protocol adherence. Rates of NRT prescription, referrals to counseling, and follow-up phone calls were compared pre- and postintervention. Secondary measures included patient satisfaction with intervention, quit rates, and reduction rates at 4 weeks postdischarge. Results Referrals to counseling doubled from 31.7% at baseline to 62.0% after implementation of the intervention, and rates of nicotine replacement therapy (NRT) prescriptions during hospitalization and at discharge increased from 15.3% to 28.5% and 9.0% to 19.3%, respectively. Follow-up phone call rates also dramatically increased. The majority of satisfaction survey respondents indicated that counseling had a positive or neutral impact on stress level and overall satisfaction. Conclusion Lean tools can dramatically increase use of evidence-based TUT in hospitalized patients. This project is easily replicable by professionals seeking to improve delivery of tobacco treatment. These findings may be particularly helpful to inpatient surgical departments that have traditionally been reticent to prescribe NRT
1-Aminocyclopropane-1-carboxylic acid (ACC) concentration and ACC synthase expression in soybean roots, root tips, and soybean cyst nematode (Heterodera glycines)-infected roots
Colonization of plant roots by root knot and cyst nematodes requires a functional ethylene response pathway. However, ethylene plays many roles in root development and whether its role in nematode colonization is direct or indirect, for example lateral root initiation or root hair growth, is not known. The temporal requirement for ethylene and localized synthesis of ethylene during the life span of soybean cyst nematode (SCN) on soybean roots was further investigated. Although a significant increase in ethylene evolution was not detected from SCN-colonized roots, the concentration of the immediate precursor to ethylene, 1-aminocyclopropane-1-carboxylic acid (ACC), was higher in SCN-colonized root pieces and root tips than in other parts of the root. Moreover, expression analysis of 17 ACC synthase (ACS) genes indicated that a select set of ACS genes is expressed in SCN-colonized root pieces that is clearly different from the set of genes expressed in non-colonized roots or root tips. Semi-quantitative real-time PCR indicated that ACS transcript accumulation correlates with the high concentration of ACC in root tips. In addition, an ACS-like sequence was found in the public SCN nucleotide database. Acquisition of a full-length sequence for this mRNA (accession GQ389647) and alignment with transcripts for other well-characterized ACS proteins indicated that the nematode sequence is missing a key element required for ACS activity and therefore probably is not a functional ACS. Moreover, no significant amount of ACC was found in any growth stage of SCN that was tested
Influence of ripening stage on physical and chemical attributes of 'Golden' papaya fruit treated with 1-Methylcyclopropene
Untersuchungen zur Reaktivität von Cyclopentadienylchromsulfiden gegenüber Luftsauerstoff und Elektrophilen und Röntgenstrukturanalyse von Cp*2Cr2(μ,η2-S2)(μ-S2) (Cp* = η5-C5Me5)
Differential Pulmonary Effects of CoO and La2O3 Metal Oxide Nanoparticle Responses During Aerosolized Inhalation in Mice
Background: Although classified as metal oxides, cobalt monoxide (CoO) and lanthanum oxide (La2O3) nanoparticles, as representative transition and rare earth oxides, exhibit distinct material properties that may result in different hazardous potential in the lung. The current study was undertaken to compare the pulmonary effects of aerosolized whole body inhalation of these nanoparticles in mice.
Results: Mice were exposed to filtered air (control) and 10 or 30 mg/m3 of each particle type for 4 days and then examined at 1 h, 1, 7 and 56 days post-exposure. The whole lung burden 1 h after the 4 day inhalation of CoO nanoparticles was 25 % of that for La2O3 nanoparticles. At 56 days post exposure, \u3c 1 % of CoO nanoparticles remained in the lungs; however, 22–50 % of the La2O3 nanoparticles lung burden 1 h post exposure was retained at 56 days post exposure for low and high exposures. Significant accumulation of La2O3 nanoparticles in the tracheobronchial lymph nodes was noted at 56 days post exposure. When exposed to phagolysosomal simulated fluid, La nanoparticles formed urchin-shaped LaPO4 structures, suggesting that retention of this rare earth oxide nanoparticle may be due to complexation of cellular phosphates within lysosomes. CoO nanoparticles caused greater lactate dehydrogenase release in the bronchoalveolar fluid (BALF) compared to La2O3 nanoparticles at 1 day post exposure, while BAL cell differentials indicate that La2O3 nanoparticles generated more inflammatory cell infiltration at all doses and exposure points. Histopathological analysis showed acute inflammatory changes at 1 day after inhalation of either CoO or La2O3 nanoparticles. Only the 30 mg/m3 La2O3 nanoparticles exposure caused chronic inflammatory changes and minimal fibrosis at day 56 post exposure. This is in agreement with activation of the NRLP3 inflammasome after in vitro exposure of differentiated THP-1 macrophages to La2O3 but not after CoO nanoparticles exposure.
Conclusion: Taken together, the inhalation studies confirmed the trend of our previous sub-acute aspiration study, which reported that CoO nanoparticles induced more acute pulmonary toxicity, while La2O3 nanoparticles caused chronic inflammatory changes and minimal fibrosis
Ethylene supports colonization of plant roots by the mutualistic fungus Piriformospora indica
The mutualistic basidiomycete Piriformospora indica colonizes roots of mono- and dicotyledonous plants, and thereby improves plant health and yield. Given the capability of P. indica to colonize a broad range of hosts, it must be anticipated that the fungus has evolved efficient strategies to overcome plant immunity and to establish a proper environment for nutrient acquisition and reproduction. Global gene expression studies in barley identified various ethylene synthesis and signaling components that were differentially regulated in P. indica-colonized roots. Based on these findings we examined the impact of ethylene in the symbiotic association. The data presented here suggest that P. indica induces ethylene synthesis in barley and Arabidopsis roots during colonization. Moreover, impaired ethylene signaling resulted in reduced root colonization, Arabidopsis mutants exhibiting constitutive ethylene signaling, -synthesis or ethylene-related defense were hyper-susceptible to P. indica. Our data suggest that ethylene signaling is required for symbiotic root colonization by P. indica
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