Black women's perspectives on bladder health: Social-ecological and life course contexts

AIMS

This paper explores Black women's perspectives on bladder health using a social-ecological conceptual framework and life course perspective.

METHODS

We conducted a directed content analysis of data from the Study of Habits, Attitudes, Realities, and Experiences (SHARE), a focus group study by the Prevention of Lower Urinary Tract Symptoms (PLUS) Research Consortium. Analysis was conducted on data from five focus groups and a member-checking session where all participants self-identified as Black or African American.

RESULTS

Forty-two participants aged 11-14 or 45+ years reported life course experiences with their bladder. The intersection of race and gender was the lens through which participants viewed bladder health. Participants' accounts of their perspectives on bladder health explicitly and implicitly revealed structural racism as an explanatory overarching theme. Participants described (a) historically-rooted and still pervasive practices of discrimination and segregation, engendering inequitable access to quality medical care and public facilities, (b) institutional barriers to toileting autonomy in educational and occupational settings, promoting unhealthy voiding habits, (c) internalized expectations of Black women's stereotyped role as family caregiver, compromising caregiver health, (d) lack of reliable information on bladder health, leading to unhealthy bladder behaviors, and (e) potentially stress-related comorbid chronic conditions and associated medication use, causing or exacerbating bladder problems.

CONCLUSIONS

Bladder health promotion interventions should address social-ecological and life course factors shaping Black women's bladder health, including social and structural barriers to accessing equitable health information and medical care.

The brain, gut, and bladder health nexus: A conceptual model linking stress and mental health disorders to overactive bladder in women

OBJECTIVE

A small, but growing literature links stressors and mental health disorders (MHDs) across the life course to overactive bladder (OAB) and urinary incontinence symptoms. Mechanisms by which stressors and MHDs may impact bladder health are not fully understood, limiting novel prevention and treatment efforts. Moreover, potential biopsychosocial mechanisms involving the brain and gut have not been considered in an integrated, comprehensive fashion.

METHODS

Members of the prevention of lower urinary tract symptoms Research Consortium developed conceptual models to inform research on biopsychosocial mechanisms through which stress and MDHs may impact bladder health among girls and women, focusing on brain and gut physiology.

RESULTS

Two conceptual models were developed-one to explain central (brain-based) and peripheral (gut-based) mechanisms linking stressors and MHDs to OAB and bladder health, and one to highlight bidirectional communication between the brain, gut, and bladder. Traumatic events, chronic stressors, and MHDs may lead to a maladaptive stress response, including dysregulated communication and signaling between the brain, gut, and bladder. Gut bacteria produce molecules and metabolites that alter production of neurotransmitters, amino acids, short-chain fatty acids, and inflammatory immune response molecules that mediate communication between the gut and brain. Microbiota signal neurogenesis, microglia maturation, and synaptic pruning; they also calibrate brain-gut-bladder axis communication through neurotransmission and synaptogenesis, potentially influencing bladder symptom development. Life course trajectories of risk may be prevented or interrupted by central and peripheral resources for neuropsychological resilience.

CONCLUSIONS

Depicted pathways, including brain-gut-bladder communication, have implications for research and development of novel prevention and treatment approaches.

A longitudinal study of social, religious, and spiritual capital and physical and emotional functioning in a national sample of African-Americans

The present study builds on prior research by examining the moderating relationships between different types of capital on physical functioning, emotional functioning, and depressive symptoms using a 2.5-year longitudinal design with a national sample of African-American adults. Results indicated a significant T1 social capital × T1 religious capital interaction such that among low T1 religious capital participants, those with high T1 social capital had lower T2 physical functioning than those with lower T1 social capital. There was also a marginally significant T1 social capital × T1 spiritual capital interaction suggesting that among low T1 spiritual capital participants, those with higher T1 social capital reported a decline in depressive symptoms compared to those with lower T1 social capital. Future research and implications for intervention and policy development are discussed.

Disability and Health in African Americans: Population Research and Implications for Occupational Therapy Community-Based Practice

Background

Population-based research and community-based interventions are integral to occupational therapy's scope of practice, yet they are underdeveloped in actual implementation. Therefore, this paper focuses on some health challenges facing the African American population, guided by the Person-Environment-Occupation-Performance Model.

Method

Using data from an observational cross-sectional nationwide telephone survey of African American adults, we examined differences between African Americans who are receiving disability payments (RDP) and those who are employed full time (FTE) on several physical health behaviors and psychosocial health indicators. We further compared the differences between African Americans RDP versus those FTE on those physical health behaviors and psychosocial health indicators across five US regions.

Results

Findings suggest that African Americans RDP are engaging in fewer positive physical health behaviors and experiencing worse psychosocial health compared to their counterparts FTE. There are also nuanced regional variations in the differences between African Americans RDP and FTE in physical health behaviors and psychosocial health indicators.

Conclusion

This research highlighted some health challenges of African Americans RDP and FTE using a regional lens, demonstrating the value of OT population-based research. There is a need for OT population-specific community-based practice to address the health disparities of underserved and minority populations, such as African Americans.

Social Support as a Mediator of the Personality-Physical Functioning Relationship in a National Sample of African Americans: A Two-Wave Longitudinal Study

The present study investigates whether social support mediates the relationship between personality traits and physical functioning among African Americans over 2.5 years. Data were collected from a national probability sample of African American adults (analytic sample N = 312). Telephone surveys included measures of the five-factor model personality traits, social support, and physical functioning. Personality traits were assessed at Time 1 (T1), and social support and physical functioning were assessed 2.5 years later at Time 2 (T2). Physical functioning was assessed using the SF-12 at T2. Results indicated that T2 social support mediated the relationship between T1 personality traits and T2 physical functioning for the traits of conscientiousness, extraversion, agreeableness, and neuroticism, but not for openness to experience. This information may be useful to healthcare providers and community members in developing strategies targeting personality traits in cultivating social support for health promotion.

Should we be talking about guidelines with patients? A qualitative analysis in metastatic breast cancer

BACKGROUND

Little data exist on perceptions of guideline-based care in oncology. This qualitative analysis describes patients' and oncologists' views on the value of guideline-based care as well as discussing guidelines when making metastatic breast cancer (MBC) treatment decisions.

PATIENTS AND METHODS

In-person interviews completed with MBC patients and community oncologists and focus groups with academic oncologists were audio-recorded and transcribed. Two coders utilized a content analysis approach to analyze transcripts independently using NVivo. Major themes and exemplary quotes were extracted.

RESULTS

Participants included 20 MBC patients, 6 community oncologists, and 5 academic oncologists. Most patients were unfamiliar with the term "guidelines." All patients desired to know if they were receiving guideline-discordant treatment but were often willing to accept this treatment. Five themes emerged explaining this including trusting the oncologist, relying on the oncologist's experiences, being informed of rationale for deviation, personalized treatment, and openness to novel therapies. Physician discussions regarding the importance of guidelines revealed three themes: consistency with scientific evidence, insurance coverage, and limiting unusual practices. Oncologists identified three major limitations in using guidelines: lack of consensus, inability to "think outside the box" to personalize treatment, and lack of guideline timeliness. Although some oncologists discussed guidelines, it was often not considered a priority.

CONCLUSIONS

Patients expressed a desire to know whether they were receiving guideline-based care but were amenable to guideline-discordant treatment if the rationale was made clear. Providers' preference to limit discussions of guidelines is discordant with patients' desire for this information and may limit shared decision-making.

A longitudinal examination of social support as a mediator of the personality-health relationship in a national sample of African Americans

The present study investigates whether social support mediates the relationship between personality traits and health among African Americans over a five-year period, filling a gap in the literature on longitudinal tests of the personality-health association. Data were collected from a national probability sample of African American adults (N = 200). Personality was assessed at Time 1 (T1), social support was assessed 2.5 years later (T2), and physical functioning was examined 5 years (T3) after T1. Telephone surveys included measures of the Five Factor Model personality traits (T1), social support (T2), and physical functioning (T3). Results suggested that relationships between the T1 personality traits and T3 physical functioning were not mediated by T2 social support. Secondary analyses found that among all T1 personality traits, higher openness and lower neuroticism uniquely predicted higher T2 social support. Further, among T1 personality traits, higher conscientiousness uniquely predicted better T3 physical functioning. This information may be useful to healthcare providers and community members in developing prevention and intervention strategies for African Americans.

Trust but Verify: Exploring the Role of Treatment-Related Information and Patient-Physician Trust in Shared Decision Making Among Patients with Metastatic Breast Cancer

An ideal model for decision making in cancer is shared decision-making (SDM). Primary facilitators in this model are information-seeking about treatment options and patient-physician trust. Previous studies have investigated the role of each of these parameters individually. However, little is known about their convergent role in treatment decision-making. Therefore, we explored perspectives of metastatic breast cancer (MBC) patients and healthcare professionals about the influence of health information-seeking and physician trust in the SDM process. Qualitative interviews with 20 MBC patients and 6 community oncologists, as well as 3 separate focus groups involving lay navigators, nurses, and academic oncologists, were conducted, recorded, and transcribed. Qualitative data analysis employed a content analysis approach, which included a constant comparative method to generate themes from the transcribed textual data. Five emergent themes were identified (1) physicians considered themselves as the patients' primary source of treatment information; (2) patients trusted their physician's treatment recommendations; (3) patients varied in their approach to seeking further health information regarding the discussed treatment options (e.g., internet websites, family and friends, support groups); (4) other healthcare professionals were cognizant of their fundamental role in facilitating further information-seeking; and (5) patient and physician discordant perspectives on shared decision making were present. Patient procurement of treatment information and the capacity to use it effectively in conjunction with patient trust in physicians play an important role in the shared decision-making process.

"It's important to me": A qualitative analysis on shared decision-making and patient preferences in older adults with early-stage breast cancer

OBJECTIVE

Shared decision-making (SDM) occurs when physicians and patients jointly select treatment that aligns with patient care goals. Incorporating patient preferences into the decision-making process is integral to successful decision-making. This study explores factors influencing treatment selection in older patients with early-stage breast cancer (EBC).

METHODS

This qualitative study included women age ≥65 years with EBC. To understand role preferences, patients completed the Control Preferences Scale. Semi-structured interviews were conducted to explore patients' treatment selection rationale. Interview transcripts were analyzed using a constant comparative method identifying major themes related to treatment selection.

RESULTS

Of 33 patients, the majority (48%) desired shared responsibility in treatment decision-making. Interviews revealed that EBC treatment incorporated three domains: Intrinsic and extrinsic influences, clinical characteristics, and patient values. Patients considered 19 treatment selection themes, the most prioritized including physician trust and physical side effects.

CONCLUSIONS

Because preferences and approach to treatment selection varied widely in this sample of older, EBC patients, more research is needed to determine best practices for preference incorporation to optimize SDM at the time of treatment decisions.

Applying concepts of life course theory and life course epidemiology to the study of bladder health and lower urinary tract symptoms among girls and women

AIMS

Although lower urinary tract symptoms (LUTS) may occur at different periods during the life course of women, a little research on LUTS has adopted a life course perspective. The purpose of this conceptual paper is to demonstrate how life course theory and life course epidemiology can be applied to study bladder health and LUTS trajectories. We highlight conceptual work from the Prevention of Lower Urinary Tract Symptoms Research Consortium to enhance the understanding of life course concepts.

METHODS

Consortium members worked in transdisciplinary teams to generate examples of how life course concepts may be applied to research on bladder health and LUTS in eight prioritized areas: (a) biopsychosocial ecology of stress and brain health; (b) toileting environment, access, habits, and techniques; (c) pregnancy and childbirth; (d) physical health and medical conditions; (e) musculoskeletal health; (f) lifestyle behaviors; (g) infections and microbiome; and (h) hormonal status across the life span.

RESULTS

Life course concepts guided consortium members' conceptualization of how potential risk and protective factors may influence women's health. For example, intrapartum interventions across multiple pregnancies may influence trajectories of bladder health and LUTS, illustrating the principle of life span development. Consortium members also identified and summarized methodologic and practical considerations in designing life course research.

CONCLUSIONS

This paper may assist researchers from a variety of disciplines to design and implement research identifying key risk and protective factors for LUTS and bladder health across the life course of women. Results from life course research may inform health promotion programs, policies, and practices.

"I'd Want to Know, Because a Year's Not a Long Time to Prepare for a Death": Role of Prognostic Information in Shared Decision Making among Women with Metastatic Breast Cancer

Context: Increasing emphasis on patient-centered care has led to highlighted importance of shared decision making, which better aligns medical decisions with patient care preferences. Effective shared decision making in metastatic breast cancer (MBC) treatment requires prognostic understanding, without which patients may receive treatment inconsistent with personal preferences. Objectives: To assess MBC patient and provider perspectives on the role of prognostic information in treatment decision making. Methods: We conducted semi-structured interviews with MBC patients and community oncologists and separate focus groups involving lay navigators, nurses, and academic oncologists. Qualitative analysis utilized a content analysis approach that included a constant comparative method to generate themes. Results: Of 20 interviewed patients with MBC, 30% were African American. Academic oncologists were mostly women (60%), community oncologists were all Caucasian, and nurses were all women and 28% African American. Lay navigators were all African American and predominately women (86%). Five emergent themes were identified. (1) Most patients wanted prognostic information but differed in when they wanted to have this conversation, (2) Emotional distress and discomfort was a critical reason for not discussing prognosis, (3) Religious beliefs shaped preferences for prognostic information, (4) Health care professionals differed on prognostic information delivery timing, and (5) Providers acknowledged that an individualized approach taking into account patient values and preferences would be beneficial. Conclusion: Most MBC patients wanted prognostic information, yet varied in when they wanted this information. Understanding why patients want limited or unrestricted prognostic information can inform oncologists' efforts toward shared decision making.

Explaining the Relationship Between Personality and Health in a National Sample of African Americans: The Mediating Role of Social Support

Though associations between personality and health have been previously observed, less is known about why such relationships exist. The present study examines whether social support mediated the relationship between personality traits and health among African Americans. We hypothesized that social support would help explain the relationship between each of the five-factor model traits and physical functioning. Data were collected from a national probability sample of 803 African American adults using a telephone survey including measures of the five-factor model personality traits, social support, and physical functioning. Results of mediational analyses suggested that higher openness to experience, conscientiousness, extraversion, and agreeableness, and lower neuroticism predicted higher social support. Higher openness, conscientiousness, extraversion, and lower neuroticism, but not agreeableness, predicted higher physical functioning. The relationships between physical functioning and personality traits were at least partially mediated by social support. This study reinforces the importance of identifying the mechanisms underlying the personality-health relationship. This information may be useful to community members and health care providers in developing prevention and treatment strategies for African Americans.

U.S. Adolescent and Adult Women's Experiences Accessing and Using Toilets in Schools, Workplaces, and Public Spaces: A Multi-Site Focus Group Study to Inform Future Research in Bladder Health

The World Health Organization recognizes access to clean and safe toilets as crucial for public health. This study explored U.S. adolescent and adult cisgender women's lived experiences accessing toilets in schools, workplaces, and public spaces. As part of the Prevention of Lower Urinary Tract Symptoms (PLUS) Research Consortium, we conducted 44 focus groups with female participants (n = 360; ages 11-93). Focus groups were stratified by age (11-14, 15-17, 18-25, 26-44, 45-64, 65+) and conducted across 7 geographically diverse U.S. sites from July 2017-April 2018. Using a transdisciplinary approach, we conducted conventional qualitative coding informed by our PLUS conceptual framework and used content analysis processes to identify salient themes. Across settings, toilet access was restricted by "gatekeepers" (i.e., individuals who control access to toilets). In contrast, self-restricting toilet use (deciding not to use the toilet despite biologic need to urinate) was based on internalized norms to prioritize school and job responsibilities over urination. In public spaces, self-restricting use was largely in response to lack of cleanliness. Across the life course, participants perceived gender disparities in the ability to easily access public toilets. Further research is needed to determine if and how these factors impact bladder health across the life course.

What Is Important When Making Treatment Decisions in Metastatic Breast Cancer? A Qualitative Analysis of Decision-Making in Patients and Oncologists

BACKGROUND

Metastatic breast cancer (MBC) is an ideal environment for shared decision-making because of the large number of guideline-based treatment options with similar efficacy but different toxicity profiles. This qualitative analysis describes patient and provider factors that influence decision-making in treatment of MBC.

MATERIALS AND METHODS

Patients and community oncologists completed in-person interviews. Academic medical oncologists participated in focus groups. Interviews and focus groups were audio-recorded, transcribed, and analyzed using NVivo. Using an a priori model based on the Ottawa Framework, two independent coders analyzed transcripts using a constant comparative method. Major themes and exemplary quotes were extracted.

RESULTS

Participants included 20 patients with MBC, 6 community oncologists, and 5 academic oncologists. Analysis of patient interviews revealed a decision-making process characterized by the following themes: decision-making style, contextual factors, and preferences. Patient preference subthemes include treatment efficacy, physical side effects of treatment, emotional side effects of treatment, cognitive side effects of treatment, cost and financial toxicity, salience of cutting-edge treatment options (clinical trial or newly approved medication), treatment logistics and convenience, personal and family responsibilities, treatment impact on daily activities, participation in self-defining endeavors, attending important events, and pursuing important goals. Physician decisions emphasized drug-specific characteristics (treatment efficacy, side effects, cost) rather than patient preferences, which might impact treatment choice.

CONCLUSION

Although both patients with MBC and oncologists considered treatment characteristics when making decisions, patients' considerations were broader than oncologists', incorporating contextual factors such as the innovative value of the treatment and life responsibilities. Differences in perspectives between patients and oncologists suggests the value of tools to facilitate systematic communication of preferences in the setting of MBC.

IMPLICATIONS FOR PRACTICE

Both patients with metastatic breast cancer (MBC) and oncologists emphasized importance of efficacy and physical side effects when making treatment decisions. However, other patient considerations for making treatment decisions were broader, incorporating contextual factors such as the logistics of treatments, personal and family responsibilities, and ability to attend important events. Furthermore, individual patients varied substantially in priorities that they want considered in treatment decisions. Differences in perspectives between patients and oncologists suggest the value of tools to facilitate systematic elicitation of preferences and communication of those preferences to oncologists for integration into decision-making in MBC.

Should we be talking about guidelines with patients? A qualitative analysis in metastatic breast cancer

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Background: Little data exist on patient perceptions of guideline-based care. This qualitative analysis describes patient and oncologist views on the value of discussing guidelines when making metastatic breast cancer (MBC) treatment decisions. Methods: In-person interviews completed by MBC patients and community medical oncologists and focus groups for academic medical oncologists were audio-recorded and transcribed. Two coders utilized a content analysis approach to analyze transcripts independently using NVivo. Major themes and exemplary quotes were extracted. Results: Participants included 20 MBC patients, 6 community oncologists, and 5 academic oncologists. The majority of patients (80%) were unfamiliar with the term “guidelines”. However, all patients desired to know if they were receiving guideline discordant treatment. As one patient commented “ I'm supposed to know the guidelines and it's not supposed to be a secret to me.” Among patients willing to receive care inconsistent with guidelines, several themes emerged including trusting the oncologist, relying on the oncologist’s prior experiences, being informed of rationale for deviation, personalized treatment, and openness to novel therapies. Physician discussions on the importance of guidelines revealed themes such as consistency with scientific evidence, insurance coverage, and limiting unusual practices. Oncologists identified limitations to guidelines including lack of expert consensus, inability to “ think outside the box” to personalize treatment, and lack of guideline timeliness. Although some oncologists discussed guidelines, a common sentiment was that sharing this information is not a priority. One physician commented that sharing the guidelines with patients is, “ getting too much into the how you practice medicine, and they may not want to know, kind of like eating at a restaurant. You don't need to know how the cook's preparing everything.” Conclusions: Both patients and physicians expressed reasons why guideline discordant treatments would be acceptable. Providers’ preference to limit discussions of guidelines is discordant with patients’ desire for this information and may limit shared decision-making.

Trust but verify: Patterns of obtaining health information and the role of physician trust in decision-making amongst patients with metastatic breast cancer

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Background: Increasing emphasis on patient-centered care has led to shared decision making, which better aligns medical decisions with patient preferences for care. In its 2004 report, Health Literacy: A Prescription to End Confusion, the US Institute of Medicine defines health literacy as the degree to which individuals have the capacity to obtain, process and understand basic health information and services needed to make appropriate health decisions. However, little is known about the confluent role of patient health information seeking patterns and physician trust in the decision-making process. Therefore, we assessed perspectives of metastatic breast cancer (MBC) patients and health care professionals regarding how health information seeking and physician trust influence decision making. Methods: Qualitative interviews with 26 MBC patients and 6 community oncologists, as well as 3 separate focus groups involving lay navigators, nurses, and academic oncologists, were recorded and transcribed. Qualitative data analysis was conducted using a content analysis approach that included a constant comparative method to generate themes from the transcribed textual data. Results: Five prominent themes emerged from these responses. (1) Patients’ primary source of treatment information were physicians. (2) Patients differed in their approach to seeking further health information regarding the discussed treatment options (e.g. internet websites, family and friends, support groups). (3) Patients trusted their physician’s recommendations to achieve their goals of care. (4) Oncologists were cognizant of their fundamental role in facilitating informed decision making (5) Patient and physician discordant perspectives on shared decision making were apparent. Conclusions: Patient procurement of health information and their capacity to use it effectively to make informed decisions in conjunction with their trust in physicians, may play an important role in shared decision making.

Qualitative assessment of self-identity in people with advanced dementia

This study aimed to understand the preserved elements of self-identity in persons with moderate to severe dementia attributable to Alzheimer's disease. A semi-structured interview was developed to explore the narrative self among residents with dementia in a residential care facility, and residents without dementia in an independent living setting. The interviews were transcribed verbatim from audio recordings and analyzed for common themes, while being sensitive to possible differences between the groups. The participants with dementia showed evidence of self-reference even though losses in explicit memory were evident. The most noticeable difference between the two groups was time frame reference. Nonetheless, all participants showed understanding of their role in relationships and exhibited concrete preferences. Our findings suggest that memory loss and other cognitive deficits associated with moderate to severe dementia do not necessarily lead to a loss of “self.”

Which Personality Traits Moderate the Relationship Between Religious Capital and Depressive Symptomology in a National Sample of African Americans?

The present study examined the relationship between religious capital and depressive symptoms and the moderating role of the Big Five personality constructs in a national sample of African American adults. Data were collected from a national probability sample of 803 African American men and women using a telephone survey including measures of the Big Five personality traits, religious capital, and depressive symptomology. Most interestingly, there was evidence for Personality × Religious Capital interactions on depressive symptomology. Higher religious capital was related to lower depressive symptomology among persons with low conscientiousness or low openness to experience. However, religious capital was less related to depressive symptoms among those with high conscientiousness or high openness. This study reinforces the importance of examining the moderating effects of personality and perceived religious capital in understanding mental health outcomes. This information can be of use to practitioners in designing culturally appropriate interventions, including the use of capital from faith-based organizations.

Racial Differences in Processes of Care at End of Life in VA Medical Centers: Planned Secondary Analysis of Data from the BEACON Trial

BACKGROUND

Racial differences exist for a number of health conditions, services, and outcomes, including end-of-life (EOL) care.

OBJECTIVE

The aim of the study was to examine differences in processes of care in the last 7 days of life between African American and white inpatients.

METHODS

Secondary analysis was conducted of data collected in the Best Practices for End-of-Life Care for Our Nation's Veterans (BEACON) trial (conducted 2005-2011). Subjects were 4891 inpatient decedents in six Veterans Administration Medical Centers. Data were abstracted from decedents' medical records. Multi-variable analyses were conducted to examine the relationship between race and each of 18 EOL processes of care controlling for patient characteristics, study site, year of death, and whether the observation was pre- or post-intervention.

RESULTS

The sample consisted of 1690 African American patients (34.6%) and 3201 white patients (65.4%). African Americans were less likely to have: do not resuscitate (DNR) orders (odds ratio [OR]: 0.67; p = 0.004), advance directives (OR: 0.71; p = 0.023), active opioid orders (OR: 0.64, p = 0.0008), opioid medications administered (OR: 0.61, p = 0.004), benzodiazepine orders (OR: 0.68, p < 0.0001), benzodiazepines administered (OR: 0.61, p < 0.0001), antipsychotics administered (OR: 0.73, p = 0.004), and steroids administered (OR: 0.76, p = 0.020). Racial differences were not found for other processes of care, including palliative care consultation, pastoral care, antipsychotic and steroid orders, and location of death.

CONCLUSIONS

Racial differences exist in some but not all aspects of EOL care. Further study is needed to understand the extent to which racial differences reflect different patient needs and preferences and whether interventions are needed to reduce disparities in patient/family education or access to quality EOL care.

"He's on his dying bed": Next-of-kin's experiences of the dying body

For family members of dying patients who have grown accustomed to providing daily body care, the transition from home to hospital is stressful. The authors used the experiences surrounding death for 78 U.S. veterans who died in a Veterans Affairs hospital. The research is based on interviews conducted with the decedent's next-of-kin. Secondary qualitative analysis of previously-coded transcribed interviews was used. Themes of social disorganization and a loss of control over the body emerged. Next-of-kin experienced the physical and functional breakdown of their loved one's body. Understanding the nature of the loss of control may help alleviate the loss of control may help alleviate the strain on families.

Predictors of Physical Restraint Use in Hospitalized Veterans at End of Life: An Analysis of Data from the BEACON Trial

BACKGROUND

The use of physical restraints in dying patients may be a source of suffering and loss of dignity. Little is known about the prevalence or predictors for restraint use at end of life in the hospital setting.

OBJECTIVE

The objective was to determine the prevalence and predictors of physical restraint use at the time of death in hospitalized adults.

METHODS

Secondary analysis was performed on data from the "Best Practices for End-of-Life Care for Our Nation's Veterans" (BEACON) trial conducted between 2005 and 2011. Medical record data were abstracted from six Veterans Administration Medical Centers (VAMCs). Data on processes of care in the last seven days of life were abstracted from the medical records of 5476 who died in the six VAMCs. We prospectively identified potential risk factors for restraint use at the time of death from among the variables measured in the parent trial, including location of death, medications administered, nasogastric tube, intravenous (IV) fluids, family presence, and receipt of a palliative care consultation.

RESULTS

Physical restraint use at time of death was documented in 890 decedents (16.3%). Restraint use varied by location of death, with patients in intensive settings being at higher risk. Restraint use was significantly more likely in patients with a nasogastric tube and those receiving IV fluids, benzodiazepines, or antipsychotics.

CONCLUSIONS

This is the first study to document that one in six hospitalized veterans were restrained at the time of death and to identify predictors of restraint use. Further research is needed to identify intervention opportunities.

Sudden Advanced Illness: An Emerging Concept Among Palliative Care and Surgical Critical Care Physicians

BACKGROUND

End-of-life discussions in critically-ill patients with acute surgical conditions may be rushed and occur earlier during hospitalization. This study explores the concept of sudden advanced illness (SAI) and its relevance to patients requiring Palliative and Surgical Critical Care.

METHODS

Semi-structured interviews were completed with 16 physicians, querying each about (1) definitional components, (2) illustrative cases, and (3) comfort with SAI. Analysis was done by grounded theory.

RESULTS

SAI was characterized as unforeseen, emerging abruptly and producing devastating injury, often in healthy, younger patients. There is (1) prognostic uncertainty, (2) loss of capacity, and (3) unprepared surrogate decision-making. Cases are emotionally-charged and often personal.

CONCLUSION

The emerging concept of SAI is important for understanding how Palliative Care can enhance care for this subset of patients.

Impact of a hospice emergency kit for veterans and their caregivers: a prospective cohort study

BACKGROUND

Although hospice emergency kits (HEKs) are provided by many home hospice agencies, little is known about their use, side effects, and perceived impact.

OBJECTIVE

To evaluate HEK medication utilization, side effects, and impact as perceived by home hospice patients and their caregivers.

METHODS

We conducted a prospective longitudinal cohort study. Participants included 43 veterans and their family/caregivers referred to community home hospices with a Veterans Affairs (VA)-provided HEK. Measurements included patient/family reports based on weekly telephone interviews, electronic medical record (EMR) review, and after-death caregiver interviews.

RESULTS

The HEK was used by 27 of 43 patients/caregivers (62.8%). In 11 cases, they reported using the kit on more than one occasion. The most commonly used medications were morphine concentrate (30.2% of patients), lorazepam (20.9%), and levofloxacin (16.3%). In 15 cases (34.9%), the family thought the HEK may have helped the patient stay at home. Nineteen of the 43 patients made at least one visit to the emergency department (ED) and 22 were hospitalized. Most admissions through the ED were due to uncontrolled pain and/or gastrointestinal problems, such as nausea or bowel obstruction. In after-death interviews, opinions of the HEK were uniformly positive. Respondents described the HEK's usefulness and felt supported and empowered by its presence in the home. Minor side effects were reported in four cases.

CONCLUSIONS

Findings provide promising evidence that HEKs are a feasible and well-tolerated method for achieving timely relief of emergent symptoms in home hospice patients and possibly avoiding unwanted ED visits and hospitalizations.

Intervention to improve care at life's end in inpatient settings: the BEACON trial

BACKGROUND

Widespread implementation of palliative care treatment plans could reduce suffering in the last days of life by adopting best practices of traditionally home-based hospice care in inpatient settings.

OBJECTIVE

To evaluate the effectiveness of a multi-modal intervention strategy to improve processes of end-of-life care in inpatient settings.

DESIGN

Implementation trial with an intervention staggered across hospitals using a multiple-baseline, stepped wedge design.

PARTICIPANTS

Six Veterans Affairs Medical Centers (VAMCs).

INTERVENTION

Staff training was targeted to all hospital providers and focused on identifying actively dying patients and implementing best practices from home-based hospice care, supported with an electronic order set and paper-based educational tools.

MAIN MEASURES

Several processes of care were identified as quality endpoints for end-of-life care (last 7 days) and abstracted from electronic medical records of veterans who died before or after intervention (n = 6,066). Primary endpoints were proportion with an order for opioid pain medication at time of death, do-not-resuscitate order, location of death, nasogastric tube, intravenous line infusing, and physical restraints. Secondary endpoints were administration of opioids, order/administration of antipsychotics, benzodiazepines, and scopolamine (for death rattle); sublingual administration; advance directives; palliative care consultations; and pastoral care services. Generalized estimating equations were conducted adjusting for longitudinal trends.

KEY RESULTS

Significant intervention effects were observed for orders for opioid pain medication (OR: 1.39), antipsychotic medications (OR: 1.98), benzodiazepines (OR: 1.39), death rattle medications (OR: 2.77), sublingual administration (OR: 4.12), nasogastric tubes (OR: 0.71), and advance directives (OR: 1.47). Intervention effects were not significant for location of death, do-not-resuscitate orders, intravenous lines, or restraints.

CONCLUSIONS

This broadly targeted intervention strategy led to modest but statistically significant changes in several processes of care, indicating its potential for widespread dissemination to improve end-of-life care for thousands of patients who die each year in inpatient settings.

"Don't get weak in your compassion": bereaved next of kin's suggestions for improving end-of-life care in Veterans Affairs Medical Centers

OBJECTIVES

To analyze bereaved next of kin's suggestions for improving end-of-life (EOL) care in Veterans Affairs (VA) Medical Centers (VAMCs).

DESIGN

Qualitative.

SETTING

This study was part of a larger study testing the effectiveness of a multimodal intervention strategy to improve processes of EOL care in six southeast U.S. VAMCs (Best Practices for End-of-Life Care for Our Nation's Veterans-BEACON Trial).

PARTICIPANTS

Bereaved next of kin (n = 78) of veterans who died between 2005 and 2010.

MEASUREMENTS

Data addressing praise, criticism, and recommendations for enhancing EOL care were abstracted from semistructured interviews of next of kin and aggregated into a code labeled "Suggestions." Content analysis proceeded iteratively through data review, comparison, and negotiation of emergent themes and integration of all coauthors' insights and interpretations into the evolving interpretive scheme.

RESULTS

Next of kin provided examples that resonated with their conceptions of quality EOL care. They also described distressing situations and perceptions of deficits in care. Major themes derived were compassionate care, good communication, support for family visits and privacy, and the need for death preparation and postdeath guidance. The fifth theme, unique to this study, was the salience of the relationship between the veterans and their families and the VA and the expectations this engendered in terms of dignity and honor.

CONCLUSION

Interventions that support staff's ability to convey compassion, communicate information to families and other staff, listen to patients and families, prepare families for the individual's death, and provide consistent, coordinated information regarding after-death activities may optimize EOL hospital care for veterans.

Team-based volunteerism with the seriously ill: a qualitative analysis from 10 volunteers' perspectives

Volunteers offer means through which social workers may extend their ability to support individuals with serious illnesses near the end of life. This study explored the experience of volunteers on teams organized initially as a grassroots movement in response to stigmatized and often socially isolated people with HIV/AIDS dying in the community. Volunteer care teams later expanded to individuals with other serious illnesses. This model spread as a means of meeting the growing need for practical support for seriously ill homebound individuals. Yet, little has been reported in the scientific literature about the interworkings of these teams and their optimal level of functioning. Qualitative inquiry, in the form of semi-structured interviews, explored perspectives of 10 volunteers with experience in volunteer team caring and identified the social processes that shaped their work. The volunteers discussed balance between positive life meaning gained from volunteer work, lessons learned, and negative aspects of a volunteer team approach to caring for the seriously ill in the community. Further investigation is warranted to validate the volunteer care team approach as a cost-effective tool to help seriously ill individuals and caregivers.

Formative evaluation of a multi-component, education-based intervention to improve processes of end-of-life care

A multicomponent, palliative care, education-based intervention was implemented in six Veterans Affairs Medical Centers in the southeast United States. The intervention comprised onsite staff training plus supporting written materials, installation of an electronic order set, and follow-up consultations. Training included large-group didactic presentations, small-group clinical demonstrations, and one-on-one consultations. The intervention strategy was targeted broadly to hundreds of hospital providers, including physician, nursing, and ancillary staff. The purpose was to train staff in identifying actively dying patients and implementing best practices of home-based hospice care. A formative evaluation was conducted utilizing semistructured telephone interviews with key informants from each site. Qualitative data analysis revealed processes that facilitated or impeded uptake of the intervention. Results will be used to inform ongoing and future clinical initiatives and optimize future implementation of education-based interventions to improve adoption of best practices for end-of-life care within acute care settings.

Exploring the affective dimension of the life review process: Facilitators’ interactional strategies for fostering personhood and social value among older adults with early dementia

We employed an auto-ethnography approach to explore the affective dimension of life review sessions with community-dwelling older military veterans with minor cognitive impairment (MCI) and early dementia. Using researchers’ analytic memos, we identified facilitators’ interactional strategies that fostered the participant’s sense of personal identity, dignity and social self-worth. Interaction among participant, caregiver, and facilitators evoked a range of emotional responses, offering a window into the affective world of MCI and early dementia. Positive emotional responses outnumbered negative emotional responses by a ratio of two-to-one in the life review sessions; however, negative emotions were more revelatory of current struggles with declines in health and function. Facilitators utilized two interactional strategies, in particular, to foster personhood and social value of participants: focusing on the participant and creating an empathic connection with the participant. Further work is needed to understand the role of emotions in research interactions and to examine the psychosocial mechanisms through which positive affect functions in promoting identity, personhood and social value among persons with MCI and early dementia.

Opioid pain medication orders and administration in the last days of life

CONTEXT

Most patients with serious and life-limiting illness experience pain at some point in the illness trajectory.

OBJECTIVES

To describe baseline pain management practices for imminently dying patients in Veterans Administration Medical Centers (VAMCs) and examine factors associated with these processes, including presence of opioid orders at the time of death and medication administration in the last seven days, 48 hours, and 24 hours of life.

METHODS

Data on orders and administration of opioid pain medication at the end of life were abstracted from the medical records of veterans who died in six VAMC hospitals in 2005.

RESULTS

Of 1068 patient records, 686 (64.2%) had an active order for an opioid medication at the time of death. Of these, 69.8% of patients had received the medication at some time within the last seven days of life, 61.2% within the last 48 hours, and 47.0% within the last 24 hours. In multivariable models, presence of an order for opioid pain medication at the time of death and administration within the last 24 hours were both significantly associated with having a Do Not Resuscitate (DNR) order (P < 0.0001/0.0002), terminal condition (P < 0.0001/< 0.0001), family presence (P < 0.0001/0.0023), location of death (P = 0.003/0.0005), and having pain noted in the care plan (P = 0.0073/0.0007).

CONCLUSION

Findings indicate a need for improving availability of opioids for end-of-life care in the inpatient setting. Modifiable factors, such as family presence and goals-of-care discussions, suggest potential targets for intervention to improve recognition of the dying process and proactive planning for pain control.

Intrinsic association of widowhood with mortality in community-dwelling older women and men: findings from a prospective propensity-matched population study

OBJECTIVES

Widowhood is associated with increased mortality. However, to what extent this association is independent of other risk factors remains unclear. In the current study, we used propensity score matching to design a study to examine the independent association of widowhood with outcomes in a balanced cohort of older adults in the United States.

METHODS

We used public-use copies of the Cardiovascular Health Study data obtained from the National Heart, Lung, and Blood Institute. Of the 5,795 community-dwelling older men and women aged 65 years and older in Cardiovascular Health Study, 3,820 were married and 1,436 were widows or widowers. Propensity scores for widowhood, estimated for each of the 5,256 participants, were used to assemble a cohort of 819 pairs of widowed and married participants who were balanced on 74 baseline characteristics. The 1,638 matched participants had a mean (± standard deviation) age of 75 (± 6) years, 78% were women, and 16% African American.

RESULTS

All-cause mortality occurred in 46% (374/819) and 51% (415/819) of matched married and widowed participants, respectively, during more than 11 years of median follow-up (hazard ratio associated with widowhood, 1.18; 95% confidence interval, 1.03-1.36; p = .018). Hazard ratios (95% confidence intervals) for cardiovascular and noncardiovascular mortalities were 1.07 (0.87-1.32; p = .517) and 1.28 (1.06-1.55; p = .011), respectively. Widowhood had no independent association with all-cause or heart failure hospitalization or incident cardiovascular events.

CONCLUSIONS

Among community-dwelling older adults, widowhood was associated with increased mortality, which was independent of confounding by baseline characteristics and largely driven by an increased noncardiovascular mortality. Widowhood had no independent association with hospitalizations or incident cardiovascular events.

Thoughts on aneuploidy

Aneuploidy refers to karyotypic abnormalities characterized by gain or loss of individual chromosomes. This condition is associated with disease and death in all organisms in which it has been studied. We have characterized the effects of aneuploidy on yeast and primary mouse cells and found it to be detrimental at the cellular level. Furthermore, we find that aneuploid cells exhibit phenotypes consistent with increased energy need and proteotoxic stress. These observations, together with the finding that the additional chromosomes found in aneuploid cells are active, lead us to propose that aneuploidy causes an increased burden on protein synthesis and protein quality-control pathways and so induces an aneuploidy stress response.

Marital status and health: exploring pre-widowhood

BACKGROUND

Health and function vary by marital status across the life-course, but little is known about older adults approaching spousal loss (pre-widowed).

OBJECTIVE

To explore health and function by marital status focusing on the pre-widowed and to examine factors associated with shorter time to spousal loss. PARTICIPANTS, DESIGN, AND MEASUREMENTS: We used 3 years of data from African American and white community-dwelling older adults in the UAB Study of Aging (N = 1000). Participants were categorized as "continuously married" (married at baseline and 3 years), "widowed" (widowed at baseline), "single" (never married/divorced); and "pre-widowed" (married at baseline and widowed within 3 years). Assessments included sociodemographic characteristics, and measures of depression, anxiety, life-space mobility, and self-reported health. chi(2) and analysis of variance (ANOVA) were used to examine baseline differences. Using Cox regression, we explored factors having independent and significant associations with shorter time to spousal loss among married older adults.

RESULTS

There were significant differences by marital status category for sociodemographic factors, health, and function. Pre-widows differed from other categories by sociodemographic characteristics as well as levels of depression, anxiety and self-reported health. Among married older adults, being female and having lower self-reported health at baseline were independent significant hazards for shorter time to widowhood; while rural residence and providing spousal care were independent significant hazards for a longer progression to widowhood.

CONCLUSIONS

Health deficits associated with spousal bereavement may be evident earlier in the marital transition than previously thought, warranting attention to the health of elderly persons whose spouses have chronic/life-limiting conditions.

Identifying and responding to ethical and methodological issues in after-death interviews with next-of-kin

After-death research with next-of-kin can enhance our understanding of end-of-life care and translate into better services for dying persons and their survivors. This article describes ethical and methodological issues that emerged in a pilot of a face-to-face interview guide designed to elicit next-of-kin's perceptions of end-of-life care. The pilot study was part of a larger Veterans Affairs (VA) Health Services Research protocol to improve end-of-life care in VA Medical Centers. By deconstructing the research process from an ethical perspective and engaging in critical self-assessment, the authors aim to inform other researchers of potential problems involved in after-death research with next-of-kin.

Barriers to mobility during hospitalization from the perspectives of older patients and their nurses and physicians

BACKGROUND

Low mobility is common during hospitalization and is associated with adverse outcomes. Understanding barriers to the maintenance or improvement of mobility is important to the development of successful interventions.

OBJECTIVES

To identify barriers to mobility during hospitalization from the perspectives of older patients and their primary nurses and physicians, to compare and contrast the perceived barriers among these groups, and to make a conceptual model.

DESIGN

Qualitative interviews analyzed and interpreted using a grounded theory approach.

SETTING

Medical wards of a university hospital.

PARTICIPANTS

Twenty-nine participants--10 patients >or= 75 years, 10 nurses, and 9 resident physicians.

MEASUREMENTS

Participants were interviewed using a semistructured interview guide, with similar questions for patients and health care providers. Interviews were audiotaped, transcribed, and reviewed for common themes by independent reviewers. Perceived barriers to mobility were identified, and their nature and frequency were examined for each respondent group.

RESULTS

Content analysis identified 31 perceived barriers to increased mobility during hospitalization. Barriers most frequently described by all 3 groups were: having symptoms (97%), especially weakness (59%), pain (55%), and fatigue (34%); having an intravenous line (69%) or urinary catheter (59%); and being concerned about falls (79%). Lack of staff to assist with out-of-bed activity was mentioned by patients (20%), nurses (70%), and physicians (67%). Unlike patients, health care providers attributed low mobility among hospitalized older adults to lack of patient motivation and lack of ambulatory devices.

CONCLUSIONS

Recognizing and understanding perceived barriers to mobility during hospitalization of older patients is an important first step toward developing successful interventions to minimize low mobility.

What about the trach? Tracheotomy removal as a palliative care maneuver

Tracheotomy is performed on patients with airway obstruction or prolonged mechanical ventilation. Tracheotomy patients are increasingly being referred to hospice and palliative care. This case series describes a process for evaluating the ongoing need for tracheotomy and the impact of tracheotomy removal. A retrospective cohort design was used in which charts were reviewed of all tracheotomy patients referred to the palliative care unit between November 1, 1998, and July 31, 2001. Tracheotomy was present in 13 of 791 palliative care unit admissions. Persistent airway obstruction contraindicated tracheotomy removal in 5 patients. The remaining patients had a successful "button" trial with subsequent tracheotomy removal. They incurred no complications and exhibited improved functional status and decreased symptom burden. Tracheotomy removal is safe and beneficial in this patient subset and should be considered an alternative to prolonged tracheotomy.

Improving processes of hospital care during the last hours of life

BACKGROUND

Known for excellence in care in the last days and hours of life, hospice programs can help individuals have a "good death" and lead to higher family satisfaction with quality of care. Our objective was to evaluate the effectiveness of a multicomponent palliative care intervention based on the best practices of home hospice and designed to improve the quality of care provided for patients dying in an acute care inpatient setting.

METHODS

This study was a before-after intervention trial conducted between 2001 and 2003. Participants included physician, nursing, and ancillary staff on inpatient services of an urban, tertiary care Veterans Affairs medical center. The palliative care intervention included staff education and support to identify patients who were actively dying and implement care plans guided by a comfort care order set template for the last days or hours of life. Data abstracted from computerized medical records of 203 veterans who died during a 6-month period before (n = 108) and after (n = 95) intervention were used to determine the impact of intervention on symptom documentation and 5 process of care indicators.

RESULTS

There was a significant increase in the mean (SD) number of symptoms documented from 1.7 (2.1) to 4.4 (2.7) (P<.001), and the number of care plans increased from 0.4 (0.9) to 2.7 (2.3) (P<.001). Opioid medication availability increased from 57.1% to 83.2% (P<.001), and do-not-resuscitate orders increased from 61.9% to 85.1% (P<.001). There were nonsignificant changes in the proportion of deaths that occurred in intensive care units (P = .17) and in the use of nasogastric tubes (P = .40), and there was a significant increase in the use of restraints (P<.001).

CONCLUSION

Our results indicate that end-of-life care improved after the introduction of the palliative care program.

The Balm of Gilead Project: A Demonstration Project on End-of-Life Care for Safety-Net Populations

The Balm of Gilead is a comprehensive program of end-of-life care for the populations served by the "safety net" public health system in Alabama's largest county. The Balm of Gilead serves terminally ill persons, predominantly of minority ethnic status who as a group are relatively younger than the national hospice population, and typically lacking in personal financial resources. Care provided by the Balm of Gilead addresses the holistic needs associated with terminal illness in each of its stages and each of its treatment settings. Balm of Gilead professionals and volunteers provide continuity of care across a continuum that includes inpatient palliative care, home hospice services, and specialized palliative care in nursing homes and other community residential settings. Cooper Green Hospital and the Jefferson County Department of Health are principal partners in the program. Community partnerships with local foundations, colleges and universities, faith communities, civic groups, and professional groups complete the collaborative network of the Balm of Gilead Project. This report discusses work to date toward fulfilling the project's two primary objectives: (1) to build the infrastructure necessary to support a comprehensive palliative care program that is available to county residents regardless of their ability to pay and (2) to develop systems and services to foster the institutional and community values that promote excellence in end-of-life care. The Project's current status and future challenges are reviewed.

Differential expression of E-cadherin and beta catenin in primary and metastatic Wilms's tumours

BACKGROUND

The E-cadherin-catenin adhesion complex is crucial for intercellular adhesiveness and maintenance of tissue architecture. Its impairment is associated with poorly differentiated phenotype and increased invasiveness of carcinomas.

AIMS

To evaluate E-cadherin, beta catenin, gamma catenin, and ezrin expression and its relation to histopathological features of primary and metastatic Wilms's tumours.

METHODS

Immunohistochemistry was used to determine the expression and cellular distribution of E-cadherin, beta catenin, gamma catenin, and ezrin in primary and metastatic Wilms's tumours. Western blotting was used to determine polypeptide size and expression of E-cadherin and beta catenin in Wilms's tumours compared with normal kidney.

RESULTS

Moderate expression of E-cadherin was found mainly in cytoplasm and occasionally cell membranes of dysplastic tubules, whereas low expression was seen in cytoplasm of blastemal cells. Primary and metastatic tumours showed moderate to high beta catenin expression in blastemal and epithelial cells, with predominantly membranous and cytoplasmic staining. Occasional nuclear staining was noted in metastatic tumours. Low to high gamma catenin and ezrin expression was seen in cytoplasm of blastemal and epithelial cells of primary and metastatic tumours. Higher amounts of 92 kDa beta catenin were detected in tumours than in normal kidney. Low expression of 120 kDa E-cadherin was seen in moderately differentiated tumours, whereas expression was lacking in poorly differentiated tumours.

CONCLUSIONS

Compared with primary tumours, metastatic tumours showed lower expression of E-cadherin and gamma catenin, with nuclear staining for beta catenin. Low E-cadherin was associated with poorly differentiated tumours. These results suggest that abnormal expression of adhesion proteins correlates with the invasive and metastatic phenotype in Wilms's tumours.

Apoptosis and interferons: role of interferon-stimulated genes as mediators of apoptosis

IFNs are a family of cytokines with pleiotropic biological effects mediated by scores of responsive genes. IFNs were the first human proteins to be effective in cancer therapy and were among the first recombinant DNA products to be used clinically. Both quality and quantity of life has been improved in response to IFNs in various malignancies. Despite its beneficial effects, unraveling the mechanisms of the anti-tumor effects of IFN has proven to be a complex task. IFNs may mediate anti-tumor effects either indirectly by modulating immunomodulatory and anti-angiogenic responses or by directly affecting proliferation or cellular differentiation of tumor cells. Both direct or indirect effects of IFNs result from induction of a subset of genes, called IFN stimulated genes (ISGs). In addition to the ISGs implicated in anti-viral, anti-angiogenic, immunomodulatory and cell cycle inhibitory effects, oligonucleotide microarray studies have identified ISGs with apoptotic functions. These include TNF-alpha related apoptosis inducing ligand (TRAIL/Apo2L), Fas/FasL, XIAP associated factor-1 (XAF-1), caspase-4, caspase-8, dsRNA activated protein kinase (PKR), 2'5'A oligoadenylate synthetase (OAS), death activating protein kinases (DAP kinase), phospholipid scramblase, galectin 9, IFN regulatory factors (IRFs), promyelocytic leukemia gene (PML) and regulators of IFN induced death (RIDs). In vitro IFN-alpha, IFN-beta and IFN-gamma induced apoptosis in multiple cell lines of varied histologies. This review will emphasize possible mechanisms and the role of ISGs involved in mediating apoptotic function of IFNs.

Mre11 complex and DNA replication: linkage to E2F and sites of DNA synthesis

We show that the Mre11 complex associates with E2F family members via the Nbs1 N terminus. This association and Nbs1 phosphorylation are correlated with S-phase checkpoint proficiency, whereas neither is sufficient individually for checkpoint activation. The Nbs1 E2F interaction occurred near the Epstein-Barr virus origin of replication as well as near a chromosomal replication origin in the c-myc promoter region and was restricted to S-phase cells. The Mre11 complex colocalized with PCNA at replication forks throughout S phase, both prior to and coincident with the appearance of nascent DNA. These data suggest that the Mre11 complex suppresses genomic instability through its influence on both the regulation and progression of DNA replication.

Functional classification of interferon-stimulated genes identified using microarrays

Interferons (IFNs) are a family of multifunctional cytokines that activate transcription of subsets of genes. The gene products induced by IFNs are responsible for IFN antiviral, antiproliferative, and immunomodulatory properties. To obtain a more comprehensive list and a better understanding of the genes regulated by IFNs, we compiled data from many experiments, using two different microarray formats. The combined data sets identified >300 IFN-stimulated genes (ISGs). To provide new insight into IFN-induced cellular phenotypes, we assigned these ISGs to functional categories. The data are accessible on the World Wide Web at http://www.lerner.ccf.org/labs/williams/, including functional categories and individual genes listed in a searchable database. The entries are linked to GenBank and Unigene sequence information and other resources. The goal is to eventually compile a comprehensive list of all ISGs. Recognition of the functions of the ISGs and their specific roles in the biological effects of IFNs is leading to a greater appreciation of the many facets of these intriguing and essential cytokines. This review focuses on the functions of the ISGs identified by analyzing the microarray data and focuses particularly on new insights into the protein kinase RNA-regulated (PRKR) protein, which have been made possible with the availability of PRKR-null mice.

Signal integration via PKR

The vital role of interferons (IFNs) as mediators of innate immunity is well established. It has recently become apparent that one of the pivotal proteins in mediating the antiviral activity of IFNs, the double-stranded RNA (dsRNA)-activated protein kinase (PKR), also functions as a signal transducer in the proinflammatory response to different agents. PKR is a member of a small family of kinases that are activated by extracellular stresses and that phosphorylate the alpha subunit of protein synthesis initiation factor eIF-2, thereby inhibiting protein synthesis. The activation of PKR during infection by viral dsRNA intermediates results in the inhibition of viral replication. PKR also mediates the activation of signal transduction pathways by proinflammatory stimuli, including bacterial lipopolysaccharide (LPS), tumor necrosis factor alpha (TNF-alpha), and interleukin 1 (IL-1). PKR is a component of the inhibitor of kappaB (IkappaB) kinase complex and plays either a catalytic or structural role in the activation of IkappaB kinase, depending on the stimulus. The activities of the stress-activated protein kinases p38 and c-Jun NH(2)-terminal kinase (JNK) are also regulated by PKR in a pathway that leads to the production of proinflammatory cytokines. This review will focus on the role of PKR in nuclear factor kappa B (NF-kappaB) and mitogen-activated protein kinase (MAPK) pathways, because these have been the subjects of a series of publications over the past year that have reported conflicting findings. Although the conflicts may not be resolved in this review, suggestions are made for experiments that could lead to a clearer understanding of the mechanisms involved.

RNA-dependent protein kinase PKR is required for activation of NF-kappa B by IFN-gamma in a STAT1-independent pathway

The IFN-inducible dsRNA-activated protein kinase PKR regulates protein synthesis through phosphorylation of eukaryotic initiation factor-2alpha. It also acts as a signal transducer for transcription factors NF-kappaB, IFN regulatory factor-1, and activating transcription factor-2. IFN-gamma, a pleiotropic cytokine, elicits gene expression by activating the Janus kinase-STAT signaling pathway. IFN-gamma can synergize with TNF-alpha to activate NF-kappaB in a number of cell lines. Here we show that IFN-gamma alone can activate NF-kappaB, by a Janus kinase-1-mediated, but Stat1-independent, mechanism. NF-kappaB activation by IFN-gamma is associated with degradation of IkappaB beta. The IFN-gamma response can be blocked by 2',5'-oligoadenylate-linked antisense chimeras against PKR mRNA. There was no activation of NF-kappaB by IFN in PKR-null cells, indicating that PKR is required for IFN-gamma signaling to NF-kappaB.

ARED: human AU-rich element-containing mRNA database reveals an unexpectedly diverse functional repertoire of encoded proteins

The adenylate uridylate-rich elements (AREs) mediate the rapid turnover of mRNAs encoding proteins that regulate cellular growth and body response to exogenous agents such as microbes, inflammatory and environmental stimuli. However, the full repertoire of ARE-containing mRNAs is unknown. Here, we explore the distribution of AREs in human mRNA sequences. Computational derivation of a 13-bp ARE pattern was performed using multiple expectation maximization for motif elicitations (MEME) and consensus analyses. This pattern was statistically validated for the specificity towards the 3'-untranslated region and not coding region. The computationally derived ARE pattern is the basis of a database which contains non-redundant full-length ARE-mRNAs. The ARE-mRNA database (ARED; http://rc.kfshrc.edu.sa/ared) reveals that ARE-mRNAs encode a wide repertoire of functionally diverse proteins that belong to different biological processes and are important in several disease states. Cluster analysis was performed using the ARE sequences to demonstrate potential relationships between the type and number of ARE motifs, and the functional characteristics of the proteins.