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1.
J Gen Intern Med ; 35(7): 1954-1962, 2020 07.
Artículo en Inglés | MEDLINE | ID: mdl-32076990

RESUMEN

BACKGROUND: Social connectedness exerts strong influences on health, including major depression and suicide. A major component of social connectedness is having individual relationships with close supports, romantic partners, and other trusted members of one's social network. OBJECTIVE: The objective of this study was to understand how individuals' relationships with close supports might be leveraged to improve outcomes for primary care patients with depression and at risk for suicide. DESIGN: In this qualitative study, we used a semi-structured interview guide to probe patient experiences, views, and preferences related to social support. PARTICIPANTS: We conducted interviews with 30 primary care patients at a Veterans Health Administration (VA) medical center who had symptoms of major depression and a close support. APPROACH: Thematic analysis of qualitative interview data examined close supports' impact on patients. We iteratively developed a codebook, used output from codes to sort data into themes, and selected quotations that exemplified themes for inclusion in this manuscript. KEY RESULTS: "Being there" as an important quality of close supports emerged as a key concept. "Being there" was defined in three ways: physical proximity, frequent or responsive contact, or perceived availability. Close supports who were effective at "being there" possessed skills in intuitively sensing the patient's emotional state and communicating indirectly about depression. Three major barriers to involving close supports in depression care were concerns of overburdening the close support, a perception that awareness of the patient's depression would make the close support unnecessarily worried, and a desire and preference among patients to handle depression on their own. CONCLUSIONS: "Being there" represents a novel, patient-generated way to conceptualize and talk about social support. Suicide prevention initiatives such as population-level communication campaigns might be improved by incorporating language used by patients and addressing attitudinal barriers to allowing help and involvement of close supports.


Asunto(s)
Veteranos , Comunicación , Depresión , Humanos , Investigación Cualitativa , Apoyo Social
2.
Soc Psychiatry Psychiatr Epidemiol ; 55(5): 589-597, 2020 May.
Artículo en Inglés | MEDLINE | ID: mdl-31691842

RESUMEN

PURPOSE: Our study explored whether aspects of veterans' social connectedness (social support, interpersonal conflict, loneliness, social norms, number of confidants) are associated with change in their depression symptoms and health services utilization over 1 year. METHODS: We conducted a prospective, longitudinal study of 262 military veterans who obtained primary care and other services at a Veterans Health Administration (VHA) facility and screened positive for depression. Participants completed surveys at baseline and 12-month follow-up. We measured social connectedness variables using the NIH Toolbox Adult Social Relationship Scales. We used the Patient Health Questionnaire to assess depression symptoms and suicidal ideation and administrative medical record data for health services utilization. We calculated change scores to model outcomes over time using multivariable regressions. RESULTS: We found that higher levels of baseline loneliness were associated with decreased depression severity over 1 year (B = - 1.55, 95% CI [- 2.53, - .56], p < .01). We found a similar association for suicidal ideation. In contrast, higher baseline number of confidants was associated with increased depression (B = .55, 95% CI [.18, .92], p < .01). Higher levels of emotional support were associated with decreased mental health visits (B = - 3.88, 95% CI [- 6.80, - .96], p < .01). No significant associations were found between social connectedness variables and primary care visits. CONCLUSIONS: Emotional support may play an important role in reducing mental health treatment utilization among VHA-using veterans. Additional investigation as to how and why loneliness and number of confidants might be paradoxically associated with depression symptoms remains necessary.


Asunto(s)
Trastorno Depresivo/epidemiología , Aceptación de la Atención de Salud , Apoyo Social , Veteranos/psicología , Trastorno Depresivo/psicología , Femenino , Humanos , Estudios Longitudinales , Masculino , Persona de Mediana Edad , Estudios Prospectivos , Psicometría , Encuestas y Cuestionarios , Estados Unidos/epidemiología , United States Department of Veterans Affairs
3.
J Med Internet Res ; 21(8): e13544, 2019 08 13.
Artículo en Inglés | MEDLINE | ID: mdl-31411143

RESUMEN

As Facebook continues to grow its number of active users, the potential to harness data generated by Facebook users also grows. As much of Facebook users' activity consists of creating (and commenting on) written posts, the potential use of text data for research is enormous. However, conducting a content analysis of text from Facebook users requires adaptation of research methods used for more traditional sources of qualitative data. Furthermore, best practice guidelines to assist researchers interested in conducting qualitative studies using data derived from Facebook are lacking. The purpose of this primer was to identify opportunities, as well as potential pitfalls, of conducting qualitative research with Facebook users and their activity on Facebook and provide potential options to address each of these issues. We begin with an overview of information obtained from a literature review of 23 studies published between 2011 and 2018 and our own research experience to summarize current approaches to conducting qualitative health research using data obtained from Facebook users. We then identify potential strategies to address limitations related to current approaches and propose 5 key considerations for the collection, organization, and analysis of text data from Facebook. Finally, we consider ethical issues around the use and protection of Facebook data obtained from research participants. In this primer, we have identified several key considerations that should aid health researchers in the planning and execution of qualitative studies involving content analysis of text data from Facebook users.


Asunto(s)
Medios de Comunicación Sociales/normas , Humanos , Investigación Cualitativa
4.
Elife ; 72018 12 14.
Artículo en Inglés | MEDLINE | ID: mdl-30547884

RESUMEN

The delta-protocadherins (δ-Pcdhs) play key roles in neural development, and expression studies suggest they are expressed in combination within neurons. The extent of this combinatorial diversity, and how these combinations influence cell adhesion, is poorly understood. We show that individual mouse olfactory sensory neurons express 0-7 δ-Pcdhs. Despite this apparent combinatorial complexity, K562 cell aggregation assays revealed simple principles that mediate tuning of δ-Pcdh adhesion. Cells can vary the number of δ-Pcdhs expressed, the level of surface expression, and which δ-Pcdhs are expressed, as different members possess distinct apparent adhesive affinities. These principles contrast with those identified previously for the clustered protocadherins (cPcdhs), where the particular combination of cPcdhs expressed does not appear to be a critical factor. Despite these differences, we show δ-Pcdhs can modify cPcdh adhesion. Our studies show how intra- and interfamily interactions can greatly amplify the impact of this small subfamily on neuronal function.


Asunto(s)
Cadherinas/genética , Perfilación de la Expresión Génica , Neuronas Receptoras Olfatorias/metabolismo , Precursores de Proteínas/genética , Animales , Cadherinas/metabolismo , Adhesión Celular/genética , Células Cultivadas , Femenino , Humanos , Células K562 , Masculino , Ratones Endogámicos C57BL , Mutación , Neuronas Receptoras Olfatorias/citología , Isoformas de Proteínas/genética , Isoformas de Proteínas/metabolismo , Precursores de Proteínas/metabolismo , Análisis de la Célula Individual/métodos
5.
J Affect Disord ; 230: 42-49, 2018 04 01.
Artículo en Inglés | MEDLINE | ID: mdl-29407537

RESUMEN

BACKGROUND: Although the substantial influence of social relationships on health is well-known, studies that concurrently examine the influence of varying dimensions of social connectedness on major depression are more limited. This study's aim was to determine to what degree several facets of social connectedness (number of confidants, social support, interpersonal conflict, social norms, and loneliness) are correlated with depression-related outcomes. METHODS: Participants were primary care patients (n = 301) with probable major depression at a Veterans Health Administration hospital and its satellite clinics. Social connectedness was primarily measured using multi-item instruments from the NIH Toolbox of Adult Social Relationship Scales. Primary outcomes were clinical symptoms (depression and suicidal ideation) and secondary outcomes were self-reported health-related behaviors (medication adherence, patient activation, and help-seeking intentions). RESULTS: In multivariate models adjusting for potential confounders and other facets of connectedness, loneliness was associated with higher levels of depression and suicidal ideation, as well as lower patient activation and help-seeking intentions. Social support and social norms about depression treatment were each associated with higher patient activation and help-seeking intentions. Social connectedness was not associated with medication adherence. LIMITATIONS: The limitations of this study are primarily related to its cross-sectional survey design and study population. CONCLUSIONS: Multiple aspects of social connectedness are associated with depression outcomes among military veterans with depression. Loneliness may represent the most important component of connectedness, as it is associated with depression severity, suicidality, and health-related behaviors.


Asunto(s)
Trastorno Depresivo Mayor/psicología , Soledad/psicología , Ideación Suicida , Veteranos/psicología , Adulto , Anciano , Estudios Transversales , Femenino , Conductas Relacionadas con la Salud , Humanos , Relaciones Interpersonales , Masculino , Persona de Mediana Edad , Atención Primaria de Salud , Autoinforme , Apoyo Social , Estados Unidos
6.
J Med Internet Res ; 20(2): e62, 2018 02 26.
Artículo en Inglés | MEDLINE | ID: mdl-29483064

RESUMEN

BACKGROUND: The media has devoted significant attention to anecdotes of individuals who post messages on Facebook prior to suicide. However, it is unclear to what extent social media is perceived as a source of help or how it compares to other sources of potential support for mental health problems. OBJECTIVE: This study aimed to evaluate the degree to which military veterans with depression use social media for help-seeking in comparison to other more traditional sources of help. METHODS: Cross-sectional self-report survey of 270 adult military veterans with probable major depression. Help-seeking intentions were measured with a modified General Help-Seeking Questionnaire. Facebook users and nonusers were compared via t tests, Chi-square, and mixed effects regression models. Associations between types of help-seeking were examined using mixed effects models. RESULTS: The majority of participants were users of social media, primarily Facebook (n=162). Mean overall help-seeking intentions were similar between Facebook users and nonusers, even after adjustment for potential confounders. Facebook users were very unlikely to turn to Facebook as a venue for support when experiencing either emotional problems or suicidal thoughts. Compared to help-seeking intentions for Facebook, help-seeking intentions for formal (eg, psychologists), informal (eg, friends), or phone helpline sources of support were significantly higher. Results did not substantially change when examining users of other social media, women, or younger adults. CONCLUSIONS: In its current form, the social media platform Facebook is not seen as a venue to seek help for emotional problems or suicidality among veterans with major depression in the United States.


Asunto(s)
Conducta de Búsqueda de Ayuda , Personal Militar/psicología , Medios de Comunicación Sociales/instrumentación , Veteranos/psicología , Adulto , Estudios Transversales , Femenino , Humanos , Masculino , Persona de Mediana Edad , Encuestas y Cuestionarios , Estados Unidos
7.
Biochemistry ; 57(7): 1073-1086, 2018 02 20.
Artículo en Inglés | MEDLINE | ID: mdl-29300467

RESUMEN

The ATPase domain of members of the 70 kDa heat shock protein (Hsp70) family shows a high degree of sequence, structural, and functional homology across species. A broadly conserved residue within the Hsp70 ATPase domain that captured our attention is an unpaired cysteine, positioned proximal to the site of nucleotide binding. Prior studies of several Hsp70 family members show this cysteine is not required for Hsp70 ATPase activity, yet select amino acid replacements of the cysteine can dramatically alter ATP hydrolysis. Moreover, post-translational modification of the cysteine has been reported to limit ATP hydrolysis for several Hsp70s. To better understand the underlying mechanism for how perturbation of this noncatalytic residue modulates Hsp70 function, we determined the structure for a cysteine-to-tryptophan mutation in the constitutively expressed, mammalian Hsp70 family member Hsc70. Our work reveals that the steric hindrance produced by a cysteine-to-tryptophan mutation disrupts the hydrogen-bond network within the active site, resulting in a loss of proper catalytic magnesium coordination. We propose that a similarly altered active site is likely observed upon post-translational oxidation. We speculate that the subtle changes we detect in the hydrogen-bonding network may relate to the previously reported observation that cysteine oxidation can influence Hsp70 interdomain communication.


Asunto(s)
Adenosina Trifosfatasas/genética , Cisteína/genética , Proteínas del Choque Térmico HSC70/genética , Mutación Puntual , Adenosina Trifosfatasas/química , Adenosina Trifosfatasas/metabolismo , Adenosina Trifosfato/metabolismo , Secuencia de Aminoácidos , Cristalografía por Rayos X , Cisteína/química , Cisteína/metabolismo , Proteínas del Choque Térmico HSC70/química , Proteínas del Choque Térmico HSC70/metabolismo , Humanos , Enlace de Hidrógeno , Hidrólisis , Modelos Moleculares , Alineación de Secuencia
8.
Psychiatr Serv ; 68(11): 1098-1100, 2017 Nov 01.
Artículo en Inglés | MEDLINE | ID: mdl-28967322

RESUMEN

Promoting patient engagement in treatment and reducing frequency of missed appointments result in higher value through both improved outcomes and improved efficiency. For this reason, continuous quality improvement (CQI) efforts to increase engagement are important in service operations. This column illustrates the results of a CQI study to determine the impact of method of delivery of phone appointment reminders on attendance rates for a cohort of 250 primary care patients with depression. Results indicated that the type of reminder had a significant impact on attendance. Live reminders had the lowest no-show rate (3%), then message or voice mail reminders (24%) and no answer (39%). These findings illustrate the value of CQI efforts for even such basic interventions as appointment reminders. Appointment attendance rates were considerably higher when there was a live contact. CQI efforts related to reminders therefore may benefit from rapid change cycles that incorporate monitoring of the type of reminder delivery and that continuously seek better strategies for engagement.


Asunto(s)
Citas y Horarios , Trastorno Depresivo/terapia , Pacientes no Presentados/estadística & datos numéricos , Atención Primaria de Salud/estadística & datos numéricos , Mejoramiento de la Calidad/estadística & datos numéricos , Sistemas Recordatorios/estadística & datos numéricos , Teléfono/estadística & datos numéricos , Adulto , Femenino , Humanos , Masculino , Persona de Mediana Edad , Atención Primaria de Salud/normas , Mejoramiento de la Calidad/normas , Sistemas Recordatorios/normas , Estados Unidos , United States Department of Veterans Affairs
9.
J Mol Biol ; 428(20): 4168-4184, 2016 10 09.
Artículo en Inglés | MEDLINE | ID: mdl-27543005

RESUMEN

Among the amino acids, cysteine stands apart based on its highly reactive sulfur group. In general, cysteine is underrepresented in proteins. Yet, when present, the features of cysteine often afford unique function. We have shown previously that a cysteine within the ATPase domain of yeast BiP (Kar2) serves as a sensor of the endoplasmic reticulum (ER) redox environment [1, 2]. Under conditions of increased oxidant (oxidative stress), this cysteine becomes oxidized, changing Kar2 from an ATP-dependent foldase to an ATP-independent holdase. We were struck by the high degree of conservation for this cysteine between BiP orthologs, and we sought to determine how cysteine substitution impacts Kar2 function. We observed that no single amino acid replacement is capable of recreating the range of functions that can be achieved by wild-type Kar2 with its cysteine in either unmodified or oxidized states. However, we were able to generate mutants that could selectively replicate the distinct activities exhibited by either unmodified or oxidized Kar2. We found that the ATPase activity displayed by unmodified Kar2 is fully maintained when Cys63 is replaced with Ala or Val. Conversely, we demonstrate that several amino acid substitutions (including His, Phe, Pro, Trp, and Tyr) support an enhanced viability during oxidative stress associated with oxidized Kar2, although these alleles are compromised as an ATPase. We reveal that the range of activity demonstrated by wild-type Kar2 can be replicated by co-expression of Kar2 mutants that mimic either the unmodified or oxidized Kar2 state, allowing for growth during standard and oxidative stress conditions.


Asunto(s)
Adenosina Trifosfatasas/genética , Adenosina Trifosfatasas/metabolismo , Cisteína/genética , Cisteína/metabolismo , Proteínas Fúngicas/genética , Proteínas Fúngicas/metabolismo , Proteínas HSP70 de Choque Térmico/genética , Proteínas HSP70 de Choque Térmico/metabolismo , Saccharomyces cerevisiae/enzimología , Sustitución de Aminoácidos , Secuencia Conservada , Mutagénesis Sitio-Dirigida , Oxidación-Reducción , Saccharomyces cerevisiae/genética , Saccharomyces cerevisiae/crecimiento & desarrollo
10.
Matern Child Health J ; 18(7): 1639-47, 2014 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-24337776

RESUMEN

We explored the attitudes, opinions, and concerns of African American women regarding influenza vaccination during pregnancy. As influenza immunization coverage rates remain suboptimal in the United States among this population, we elicited message framing strategies for multicomponent interventions aimed at decreasing future incident cases of maternal and neonatal influenza. Semi-structured in-depth interviews (N = 21) were conducted with pregnant African American women at urban OB/GYN clinics who had not received an influenza vaccine. Interviews were transcribed, subjected to intercoder reliability assessment, and content analyzed to identify common thematic factors related to acceptance of the influenza vaccine and health communication message preferences. Four major themes were identified. These were communication approaches, normal vaccine behavior, pregnancy vaccination, and positive versus negative framing. Two strong themes emerged: positively-framed messages were preferred over negatively-framed messages and those emphasizing the health of the infant. Additionally, previous immunization, message source, and vaccine misperceptions also played important roles in decision-making. The majority of women indicated that positively framed messages focusing on the infant's health would encourage them to receive an influenza vaccine. Messages emphasizing immunization benefits such as protection against preterm birth and low birth weight outcomes have potential to overcome widespread negative community perceptions and cultural beliefs. Additionally, messages transmitted via interpersonal networks and social media strongly influence motivation to obtain vaccination during pregnancy. The findings of this study will assist in developing tailored messages that change pregnant African American women's influenza vaccination decision-making to achieve improved coverage.


Asunto(s)
Negro o Afroamericano , Comunicación , Promoción de la Salud/métodos , Complicaciones Infecciosas del Embarazo/prevención & control , Vacunación/estadística & datos numéricos , Adulto , Actitud Frente a la Salud , Femenino , Humanos , Gripe Humana , Persona de Mediana Edad , Embarazo , Investigación Cualitativa , Adulto Joven
11.
Proc Natl Acad Sci U S A ; 101(34): 12718-23, 2004 Aug 24.
Artículo en Inglés | MEDLINE | ID: mdl-15304640

RESUMEN

How olfactory sensory neurons converge on spatially invariant glomeruli in the olfactory bulb is largely unknown. In one model, olfactory sensory neurons interact with spatially restricted guidance cues in the bulb that orient and guide them to their target. Identifying differentially expressed molecules in the olfactory bulb has been extremely difficult, however, hindering a molecular analysis of convergence. Here, we describe several such genes that have been identified in a screen that compiled microarray data to create a three-dimensional model of gene expression within the mouse olfactory bulb. The expression patterns of these identified genes form the basis of a nascent spatial map of differential gene expression in the bulb.


Asunto(s)
Perfilación de la Expresión Génica , Bulbo Olfatorio/fisiología , Olfato/fisiología , Animales , Mapeo Encefálico , Análisis por Conglomerados , Hibridación in Situ , Ratones , Neuronas Aferentes/citología , Neuronas Aferentes/metabolismo , Bulbo Olfatorio/anatomía & histología , Análisis de Secuencia por Matrices de Oligonucleótidos , Reproducibilidad de los Resultados
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