Browsing by keyword "Survival"
Now showing items 1-11 of 11
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Autologous/Allogeneic Hematopoietic Cell Transplantation versus Tandem Autologous Transplantation for Multiple Myeloma: Comparison of Long-Term Postrelapse SurvivalWe compared postrelapse overall survival (OS) after autologous/allogeneic (auto/allo) versus tandem autologous (auto/auto) hematopoietic cell transplantation (HCT) in patients with multiple myeloma (MM). Postrelapse survival of patients receiving an auto/auto or auto/allo HCT for MM and prospectively reported to the Center for International Blood and Marrow Transplant Research between 2000 and 2010 were analyzed. Relapse occurred in 404 patients (72.4%) in the auto/auto group and in 178 patients (67.4%) in the auto/allo group after a median follow-up of 8.5 years. Relapse occurred before 6 months after a second HCT in 46% of the auto/allo patients, compared with 26% of the auto/auto patients. The 6-year postrelapse survival was better in the auto/allo group compared with the auto/auto group (44% versus 35%; P = .05). Mortality due to MM was 69% (n = 101) in the auto/allo group and 83% (n = 229) deaths in auto/auto group. In multivariate analysis, both cohorts had a similar risk of death in the first year after relapse (hazard ratio [HR], .72; P = .12); however, for time points beyond 12 months after relapse, overall survival was superior in the auto/allo cohort (HR for death in auto/auto =1.55; P = .005). Other factors associated with superior survival were enrollment in a clinical trial for HCT, male sex, and use of novel agents at induction before HCT. Our findings shown superior survival afterrelapse in auto/allo HCT recipients compared with auto/auto HCT recipients. This likely reflects a better response to salvage therapy, such as immunomodulatory drugs, potentiated by a donor-derived immunologic milieu. Further augmentation of the post-allo-HCT immune system with new immunotherapies, such as monoclonal antibodies, checkpoint inhibitors, and others, merit investigation.
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Contributions of the alpha6 integrins to breast carcinoma survival and progressionThis review summarizes recent findings that support a key role for the alpha6 integrins (alpha6beta1 and alpha6beta4) in the progression of breast carcinoma. The hypothesis that emerges from the existing data is that both of these integrins have the ability to sustain the survival of breast carcinoma cells, especially in stress conditions such as those that exist in the tumor microenvironment. The mechanisms by which these integrins promote survival appear to involve their ability to regulate the expression of vascular endothelial growth factor (VEGF), either at the level of transcription or translation. VEGF produced by breast carcinoma cells in response to alpha6 integrin regulation can function in an autocrine manner to promote survival signaling.
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Differences in survival among multiple myeloma patients in the United States SEER population by neighborhood socioeconomic status and race/ethnicityPURPOSE: We examined the combined influences of race/ethnicity and neighborhood socioeconomic status (SES) on long-term survival among patients with multiple myeloma (MM). METHODS: Data from the 2000-2015 NCI Surveillance, Epidemiology, and End Results Program (SEER-18) were used. Census tract-level SES index was assessed in tertiles (low, medium, high SES). Competing-risk modeling was used to estimate sub-hazard ratios (SHR) and 95% confidence intervals (CIs) for SES tertile adjusted for sex and age at diagnosis and stratified by race/ethnicity. RESULTS: Overall, living in a low SES neighborhood was associated with worse MM survival. However, we observed some variation in the association by racial/ethnic group. Living in a low versus a high SES neighborhood was associated with a 35% (95% CI = 1.16-1.57) increase in MM-specific mortality risk among Asian/Pacific Islander cases, a 17% (95% CI = 1.12-1.22) increase among White cases, a 14% (95% CI = 1.04-1.23) increase among Black cases, and a 7% (95% CI = 0.96-1.19) increase among Hispanic cases. CONCLUSION: These results suggest that the influence of both SES and race/ethnicity should be considered when considering interventions to remedy disparities in MM survival.
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Effects of chronic adenosine uptake blockade on adrenergic responsiveness and left ventricular chamber function in pressure overload hypertrophy in the ratBACKGROUND: Increased sympathetic activity contributes to the progression of heart failure. Adenosine counteracts sympathetic activity by inhibition of presynaptic norepinephrine release and attenuation of the metabolic and contractile responses to beta-adrenergic stimulation. In this study, we tested the hypothesis that the adenosinergic effects (uptake blockade) of dipyridamole may retard the progression of pressure overload hypertrophy in the rat. METHODS AND RESULTS: To verify that the administration of dipyridamole increases myocardial adenosine levels in the rat, epicardial adenosine concentrations were measured from 12 isolated, perfused rat hearts exposed to 10(-7) and 10(-6) mol/l dipyridamole. Adenosine concentrations were increased with both doses of dipyridamole. Also, 9 weeks of dipyridamole treatment resulted in decreased sensitivity to the adenosine A1-receptor agonist, 2-chloro-N6-cyclopentyl adenosine, suggesting that dipyridamole increases adenosine levels in the intact rat. In the second part of the study, rats were divided into either abdominal aortic-banded or sham-operated groups and were treated with either dipyridamole or saline. After 9 weeks of treatment, two-dimensional Doppler echocardiographic studies were performed and the adrenergic responsiveness to 10(-8) mol/l isoproterenol was assessed in vitro. The saline-treated banded group demonstrated concentric left ventricular hypertrophy, abnormal diastolic filling, increased wet lung weights and attenuation of adrenergic responsiveness. In contrast, the dipyridamole-treated banded rats exhibited more concentric geometry (higher relative wall thickness with similar left ventricular mass), normal left ventricular filling characteristics and preserved adrenergic responsiveness. Systolic left ventricular chamber and myocardial function, as assessed by stress-endocardial and midwall shortening relationships, were not significantly altered by banding or dipyridamole treatment. CONCLUSIONS: Dipyridamole treatment prevented the development of abnormal left ventricular chamber filling, preserved adrenergic responsiveness and appeared to attenuate detrimental chamber remodeling in rats with pressure overload hypertrophy.
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Functional analysis of Gscl in the pathogenesis of the DiGeorge and velocardiofacial syndromesGscl encodes a Goosecoid-related homeodomain protein that is expressed during mouse embryogenesis. In situ hybridization and immunohistochemistry studies show that Gscl is expressed in the pons region of the developing central nervous system and primordial germ cells. Gscl expression is also detected in a subset of adult tissues, including brain, eye, thymus, thyroid region, stomach, bladder and testis. Gscl is located within a region of the mouse genome that is syntenic with the region commonly deleted in DiGeorge and velocardiofacial syndrome (DGS/VCFS) patients. DGS/VCFS patients have craniofacial abnormalities, cardiac outflow defects and hypoplasia of the parathyroid gland and thymus due to haploinsufficiency of a gene or genes located within the deleted region. Thus, the genomic location of Gscl and its expression in a subset of the tissues affected in DGS/VCFS patients suggest that Gscl may contribute to the pathogenesis of DGS/VCFS. To determine the role of Gscl during mouse embryogenesis and in DGS/VCFS, we have deleted Gscl by gene targeting in mouse embryonic stem cells. Both Gscl heterozygous and Gscl null mice were normal and fertile, suggesting that Gscl is not a major factor in DGS/VCFS. Interestingly, expression of the adjacent Es2 gene in the pons region of Gscl null fetuses was absent, suggesting that mutations within the DGS/VCFS region can influence expression of adjacent genes. In addition, embryos that lacked both Gscl and the related Gsc gene appeared normal. These studies represent the first functional analysis of a DGS/VCFS candidate gene in vivo. These Gscl null mice will be an important genetic resource for crosses with other mouse models of the DGS/VCFS.
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Influence of race and sociodemographic factors on declining resection for gastric cancer: A national studyBackground: The purpose of this study was to determine whether racial or other demographic characteristics were associated with declining surgery for early stage gastric cancer. Methods: Patients with clinical stage I-II gastric adenocarcinoma were identified from the NCDB. Multivariable logistic models identified predictors for declining resection. Patients were stratified based on propensity scores, which were modeled on the probability of declining. Overall survival was evaluated using the Kaplan-Meier method. Results: Of 11,326 patients, 3.68% (n = 417) declined resection. Patients were more likely to refuse if they were black (p < 0.001), had Medicaid or no insurance (p < 0.001), had shorter travel distance to the hospital (p < 0.001) or were treated at a non-academic center (p = 0.001). After stratification, patients who declined surgery had worse overall survival (all strata, p < 0.001). Conclusions: Racial and sociodemographic disparities exist in the treatment of potentially curable gastric cancer, with patients who decline recommended surgery suffering worse overall survival.
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Keeping Clubhouses Open: Toward a Roadmap for SustainabilityClubhouses are recovery centers that help persons with serious mental illness obtain and maintain community-based employment, education, housing, social integration, and other services. Key informants from U.S. clubhouses were interviewed to create a conceptual framework for clubhouse sustainability. Survival analyses tested this model for 261 clubhouses. Clubhouses stayed open significantly longer if they had received full accreditation, had more administrative autonomy, and received funding from multiple rather than sole sources. Cox regression analyses showed that freestanding clubhouses which were accredited endured the longest. Budget size, clubhouse size, and access to managed care did not contribute significantly to sustainability.
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Necroptosis, pyroptosis and apoptosis: an intricate game of cell deathCell death is a fundamental physiological process in all living organisms. Its roles extend from embryonic development, organ maintenance, and aging to the coordination of immune responses and autoimmunity. In recent years, our understanding of the mechanisms orchestrating cellular death and its consequences on immunity and homeostasis has increased substantially. Different modalities of what has become known as 'programmed cell death' have been described, and some key players in these processes have been identified. We have learned more about the intricacies that fine tune the activity of common players and ultimately shape the different types of cell death. These studies have highlighted the complex mechanisms tipping the balance between different cell fates. Here, we summarize the latest discoveries in the three most well understood modalities of cell death, namely, apoptosis, necroptosis, and pyroptosis, highlighting common and unique pathways and their effect on the surrounding cells and the organism as a whole.
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Prognostic relevance of temporal muscle thickness as a marker of sarcopenia in patients with glioblastoma at diagnosisOBJECTIVES: Temporal muscle thickness (TMT) is a surrogate marker of sarcopenia, correlated with survival expectancy in patients suffering from brain metastases and recurrent or treated glioblastoma. We evaluated the prognostic relevance of TMT measured on brain MRIs acquired at diagnosis in patients affected by glioblastoma. METHODS: We retrospectively enrolled 51 patients in our Institution affected by methylated MGMT promoter, IDH1-2 wild-type glioblastoma, who underwent complete surgical resection and subsequent radiotherapy with concomitant and maintenance temozolomide, from January 1, 2015, to April 30, 2017. The last clinical/radiological follow-up date was set to September 3, 2019. TMT was measured bilaterally on reformatted post-contrast 3D MPRAGE images, acquired on our 3-T scanner no more than 2 days before surgery. The median, 25th, and 75th percentile TMT values were identified and population was subdivided accordingly; afterwards, statistical analyses were performed to verify the association among overall survival (OS) and TMT, sex, age, and ECOG performance status. RESULTS: In our cohort, the median OS was 20 months (range 3-51). Patients with a TMT > /= 8.4 mm (median value) did not show a statistically significant increase in OS (Cox regression model: HR 1.34, 95% CI 0.68-2.63, p = 0.403). Similarly, patients with a TMT > /= 9.85 mm (fourth quartile) did not differ in OS compared to those with TMT < /= 7 mm (first quartile). The statistical analyses confirmed a significant association among TMT and sex (p = 0.0186), but none for age (p = 0.642) and performance status (p = 0.3982). CONCLUSIONS: In our homogeneous cohort of patients with glioblastoma at diagnosis, TMT was not associated with prognosis, age, or ECOG performance status. KEY POINTS: * Temporal muscle thickness (TMT) is a surrogate marker of sarcopenia and has been correlated with survival expectancy in patients suffering from brain metastases and recurrent or treated glioblastoma. * We appraised the correlation among TMT and survival, sex, age at surgery, and performance status, measured on brain MRIs of patients affected by glioblastoma at diagnosis. * TMT did not show any significant correlation with prognosis, age at surgery, or performance status, and its usefulness might be restricted only to patients with brain metastases and recurrent or treated glioblastoma.
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Religiosity and Patient Activation and Health Outcomes among Hospital Survivors of an Acute Coronary SyndromeBackground: Religious involvement is widespread and may influence patient engagement with their healthcare (patient activation) and health outcomes. This dissertation examined the association between religiosity and patient activation, changes in health-related quality of life (HRQOL), readmissions, and survival after hospitalization for acute coronary syndrome (ACS). Methods: We recruited 2,174 patients hospitalized for ACS in Georgia and Central Massachusetts (2011-2013) in a prospective cohort study. Participants self-reported three items assessing religiosity – strength/comfort from religion, petition prayers for health, and awareness of intercessory prayers by others. Patient activation was measured using the 6-item Patient Activation Measure. Generic HRQOL was assessed with the SF-36®v2 physical and mental component summary scores. Disease-specific HRQOL was evaluated with the Seattle Angina Questionnaire Quality of Life subscale. Unscheduled readmissions were validated from medical records. Mortality status was obtained from national and state vital statistics. Results: After adjustment for several sociodemographic, psychosocial, and clinical variables, reports of strength/comfort from religion and receipt of intercessions were associated with high activation. Praying for one’s health was associated with low activation. Prayers for health were associated with clinically meaningful increases in disease-specific and physical HRQOL. Neither strength/comfort from religion, petition, nor intercessory prayers were significantly associated with unscheduled 30-day readmissions and two-year all-cause mortality. Conclusions: Most ACS survivors acknowledge religious practices for their health. Religiosity was associated with patient activation and changes in HRQOL. These findings suggest that religiosity may influence patient engagement in their healthcare and recovery after a life-threatening illness, buttressing the need for holistic approach in patient management.
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TRACE-CORE Dataset on Religious Practices and Long-Term Survival after Hospital Discharge for an Acute Coronary SyndromeManuscript abstract: Background: Prior studies of healthy populations have found religious practices to be associated with survival. However, no contemporary studies have examined whether religiosity influences survival among patients discharged from the hospital after an acute coronary syndrome (ACS). The present study examined the relationship between religious practices and 2-year all-cause mortality among hospital survivors of an ACS. Methods: Patients hospitalized for an ACS were recruited from 6 medical centers in Massachusetts and Georgia between 2011 and 2013. Study participants self-reported three items assessing religiosity: strength/comfort from religion, petition prayers for health, and awareness of intercessory prayers by others. All cause-mortality within 2-years of hospital discharge was ascertained by review of medical records at participating study hospitals and from death certificates. Cox proportional hazards models were used to estimate the multivariable adjusted risk of 2-year all-cause mortality. Results: Participants (n=2,068) were on average 61 years old, 34% were women, and 81% were non-Hispanic White. Approximately 85% derived strength/comfort from religion, 61% prayed for their health, and 89% were aware of intercessions. Overall, 6% died within 2 years post-discharge. After adjusting for sociodemographic variables (age, sex, and race/ethnicity), petition prayers were associated with an increased risk of 2-year all-cause mortality (HR: 1.64; 95% CI: 1.01-2.66). With further adjustment for several clinical and psychosocial measures, this association was no longer statistically significant. Strength/comfort from religion and intercessory prayers were not significantly associated with mortality. Conclusions: Most ACS survivors acknowledge deriving strength and comfort from religion, praying for their health, and intercessions made by others for their health. Although the reported religious practices were not associated with post-discharge survival after multivariable adjustment, acknowledging that patients utilize their religious beliefs and practices as strategies to improve their health would ensure a more holistic approach to patient management.



