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1.
Calcif Tissue Int ; 114(3): 222-227, 2024 03.
Artículo en Inglés | MEDLINE | ID: mdl-38030713

RESUMEN

This combined retrospective and prospective study aimed to investigate the relationship between scoliosis, spinal bone mineral density (BMD), and truncal muscle strength in patients with familial dysautonomia (FD). A total of 79 FD patients (40 male, 39 female) aged 5-44 years were included. The severity of scoliosis, lumbar spine BMD (Z-score), and truncal muscle strength were assessed. Correlations were analyzed using Pearson's correlation coefficient. Inverse correlations were observed between scoliosis severity and BMD (r = - 0.328, p = 0.001), as indicated by increasingly negative Z-score values with worsening osteoporosis. There were also inverse correlations between scoliosis and truncal muscle strength (r = - 0.595, p < 0.001). The correlation between scoliosis and age was notable up to 22 years (r = 0.421, p = 0.01), but not in the older age group (22-44 years). Our study identified inverse correlations between osteoporosis and scoliosis, as well as between scoliosis and truncal muscle strength, in FD patients. These findings suggest that there may be a relationship between bone density, muscle strength, and the severity of spinal curvature in this population. While our results highlight the potential importance of early diagnosis and management of osteoporosis, and possibly the benefits of physical therapy to strengthen truncal muscles, further research is needed to determine the direct impact of these interventions on preventing the progression of scoliosis and its associated complications in FD patients. A long-term longitudinal study could provide more insights into these relationships and inform treatment strategies for FD patients.


Asunto(s)
Disautonomía Familiar , Osteoporosis , Escoliosis , Humanos , Masculino , Femenino , Anciano , Densidad Ósea/fisiología , Disautonomía Familiar/complicaciones , Estudios Retrospectivos , Estudios Prospectivos , Estudios Longitudinales , Osteoporosis/complicaciones , Vértebras Lumbares , Fuerza Muscular , Absorciometría de Fotón/métodos
2.
BMC Pediatr ; 24(1): 217, 2024 Mar 27.
Artículo en Inglés | MEDLINE | ID: mdl-38539130

RESUMEN

BACKGROUND: Childhood traumatic experiences may result in post-traumatic stress disorder. Although pediatricians are encouraged to address these traumas in clinical encounters, measures of childhood traumatic stress have not been adopted by primary care clinicians. In this study, we describe the feasibility and potential utility of the UCLA Brief Screen, a validated screener for childhood traumatic stress symptoms, in pediatric primary care clinics. METHODS: Children 6-17 years of age presenting for routine well-child care in community-based pediatric clinics were eligible for traumatic stress screening. We described the feasibility and acceptability of screening based on screener adoption by eligible pediatric clinicians. We assessed the potential utility of screening based on prevalence and distribution of potentially traumatic events and traumatic stress symptoms in this general pediatric population. Finally, we compared results of the UCLA Brief Screen with those of the Patient Health Questionnaire-A to evaluate associations between symptoms of traumatic stress, depression, and suicidality among adolescents in this community setting. RESULTS: 14/18 (77.8%) pediatric clinicians in two clinics offered an adapted UCLA Brief Screen during 2359/4959 (47.6%) eligible well-child checks over 14 months. 1472/2359 (62.4%) of offered screeners were completed, returned, and scored. One-third (32.5%) of completed screeners captured a potentially traumatic event experience described by either children or caregivers. Moderate to severe traumatic stress symptoms were identified in 10.7% and 5.2% of patients, respectively. Concurrent depression screening revealed that 68.3% of adolescents with depressive symptoms reported a potentially traumatic event (PTE) and 80.5% had concurrent traumatic stress symptoms. Adolescents reporting a PTE were 3.5 times more likely to report thoughts of suicide or self-harm than those without this history. CONCLUSIONS: Results from this pilot study suggest that traumatic stress screening in the pediatric primary care setting may be feasible and may identify and classify mental health symptoms missed with current screening practices for depression. The prevalence of PTEs and traumatic stress symptoms associated with PTEs support the potential utility of a standardized screening in early identification of and response to children with clinically important symptoms of childhood traumatic stress. Future research should evaluate meaningful clinical outcomes associated with traumatic stress screening.


Asunto(s)
Conducta Autodestructiva , Trastornos por Estrés Postraumático , Adolescente , Niño , Humanos , Proyectos Piloto , Trastornos por Estrés Postraumático/diagnóstico , Trastornos por Estrés Postraumático/epidemiología , Trastornos por Estrés Postraumático/etiología , Ideación Suicida , Atención Primaria de Salud
3.
Dis Esophagus ; 36(9)2023 Sep 01.
Artículo en Inglés | MEDLINE | ID: mdl-36892169

RESUMEN

Recent guidelines recommend screening for patients with chronic gastroesophageal reflux disease who have three or more additional risk factors for Barrett's esophagus (BE). Failure to screen high-risk individuals represents a missed opportunity in esophageal adenocarcinoma prevention and early detection. We aimed to determine the frequency of upper endoscopy and prevalence of BE and esophageal cancer in a cohort of United States veterans who possessed four or more risk factors for BE. All patients at VA New York Harbor Healthcare System with at least four risk factors for BE between 2012 and 2017 were identified. Procedure records were reviewed for upper endoscopies performed between January 2012 and December 2019. Multivariable logistic regression was used to determine risk factors associated with undergoing endoscopy and factors associated with BE and esophageal cancer. 4505 patients with at least four risk factors for BE were included. 828 patients (18.4%) underwent upper endoscopy, of which 42 (5.1%) were diagnosed with BE and 11 (1.3%) with esophageal cancer (10 adenocarcinoma; 1 squamous cell carcinoma). Among individuals who underwent upper endoscopy, risk factors associated with undergoing endoscopy included obesity (OR, 1.79; 95% CI, 1.41-2.30; P < 0.001) and chronic reflux (OR, 3.86; 95% CI, 3.04-4.90; P < 0.001). There were no individual risk factors associated with BE or BE/esophageal cancer. In this retrospective analysis of patients with 4 or more risk factors for BE, fewer than one-fifth of patients underwent upper endoscopy, supporting the need for efforts aimed at improving BE screening rates.


Asunto(s)
Adenocarcinoma , Esófago de Barrett , Neoplasias Esofágicas , Reflujo Gastroesofágico , Veteranos , Humanos , Esófago de Barrett/diagnóstico , Esófago de Barrett/epidemiología , Esófago de Barrett/complicaciones , Estudios Retrospectivos , Neoplasias Esofágicas/diagnóstico , Neoplasias Esofágicas/epidemiología , Neoplasias Esofágicas/etiología , Factores de Riesgo , Adenocarcinoma/diagnóstico , Adenocarcinoma/epidemiología , Adenocarcinoma/etiología , Reflujo Gastroesofágico/complicaciones , Reflujo Gastroesofágico/epidemiología , Esofagoscopía/efectos adversos
4.
Philos Trans A Math Phys Eng Sci ; 380(2232): 20210340, 2022 Sep 19.
Artículo en Inglés | MEDLINE | ID: mdl-35909361

RESUMEN

The present paper investigates the impact behaviour of both pristine carbon-fibre-reinforced-plastic (CFRP) composite laminates and repaired CFRP laminates. For the patch-repaired CFRP specimen, the pristine CFRP panel specimen has been damaged by cutting out a central disc of the CFRP material and then repaired using an adhesively bonded patch of CFRP to cover the hole. Drop-weight, impact tests are performed on these two types of specimens and a numerical elastic-plastic, three-dimensional damage model is developed and employed to simulate the impact behaviour of both types of specimen. This numerical model is meso-scale in nature and assumes that cracks initiate in the CFRP at a nano-scale, in the matrix around fibres, and trigger sub-micrometre intralaminar matrix cracks during the impact event. These localized regions of intralaminar cracking then lead to interlaminar, i.e. delamination, cracking between the neighbouring plies which possess different fibre orientations. These meso-scale, intralaminar and interlaminar, damage processes are modelled using the numerical finite-element analysis model with each individual ply treated as a continuum. Good agreement is found between the results from the experimental studies and the predictions from the numerical simulations. This article is part of the theme issue 'Nanocracks in nature and industry'.

5.
J Sch Nurs ; 38(1): 74-83, 2022 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-33944636

RESUMEN

School nurses are the most accessible health care providers for many young people including adolescents and young adults. Early identification of depression results in improved outcomes, but little information is available comprehensively describing depressive symptoms specific to this population. The aim of this study was to develop a taxonomy of depressive symptoms that were manifested and described by young people based on a scoping review and content analysis. Twenty-five journal articles that included narrative descriptions of depressive symptoms in young people were included. A total of 60 depressive symptoms were identified and categorized into five dimensions: behavioral (n = 8), cognitive (n = 14), emotional (n = 15), interpersonal (n = 13), and somatic (n = 10). This comprehensive depression symptom taxonomy can help school nurses to identify young people who may experience depression and will support future research to better screen for depression.


Asunto(s)
Depresión , Adolescente , Humanos , Adulto Joven
6.
Genet Med ; 23(2): 289-297, 2021 02.
Artículo en Inglés | MEDLINE | ID: mdl-33020592

RESUMEN

PURPOSE: Death from suicide has an estimated heritability of ~50%. Research may soon allow calculation of polygenic risk scores (PRS) for suicide death, which could be marketed directly to consumers. This raises ethical concerns. Understanding how consumers will utilize this information is urgent. METHODS: We conducted three focus groups involving suicide attempt survivors ("survivors") and family members of suicide decedents ("family members") to gauge their reactions to this technology. Questions focused on positive and negative implications of PRS results. Qualitative research methods were used to summarize studio results. RESULTS: Eight survivors and 13 family members participated. Both groups postulated benefits of suicide PRS, including prevention and reduced stigma. Their concerns ranged from increased stigma to adverse psychological effects. They suggested that suicide PRS should be accompanied by extensive education and counseling. Participants experienced no adverse effects. CONCLUSION: Many ethical, legal, and social implications of genetic testing for suicide risk are highly salient to community stakeholders. Our participants hoped that suicide PRS could have significant individual and community-level benefits, but had concerns about effects in several domains, including stigma, access to insurance and employment, and increased anxiety and depression.


Asunto(s)
Salud Pública , Sobrevivientes , Familia , Pruebas Genéticas , Humanos , Estigma Social , Intento de Suicidio
7.
Am J Med Genet B Neuropsychiatr Genet ; 186(8): 508-520, 2021 12.
Artículo en Inglés | MEDLINE | ID: mdl-34042246

RESUMEN

Identification of genetic factors leading to increased risk of suicide death is critical to combat rising suicide rates, however, only a fraction of the genetic variation influencing risk has been accounted for. To address this limitation, we conducted the first comprehensive analysis of rare genetic variation in suicide death leveraging the largest suicide death biobank, the Utah Suicide Genetic Risk Study (USGRS). We conducted a single-variant association analysis of rare (minor allele frequency <1%) putatively functional single-nucleotide polymorphisms (SNPs) present on the Illumina PsychArray genotyping array in 2,672 USGRS suicide deaths of non-Finnish European (NFE) ancestry and 51,583 NFE controls from the Genome Aggregation Database. Secondary analyses used an independent control sample of 21,324 NFE controls from the Psychiatric Genomics Consortium. Five novel, high-impact, rare SNPs were identified with significant associations with suicide death (SNAPC1, rs75418419; TNKS1BP1, rs143883793; ADGRF5, rs149197213; PER1, rs145053802; and ESS2, rs62223875). 119 suicide decedents carried these high-impact SNPs. Both PER1 and SNAPC1 have other supporting gene-level evidence of suicide risk, and psychiatric associations exist for PER1 (bipolar disorder, schizophrenia), and for TNKS1BP1 and ESS2 (schizophrenia). Three of the genes (PER1, TNKS1BP1, and ADGRF5), together with additional genes implicated by genome-wide association studies on suicidal behavior, showed significant enrichment in immune system, homeostatic and signal transduction processes. No specific diagnostic phenotypes were associated with the subset of suicide deaths with the identified rare variants. These findings suggest an important role for rare variants in suicide risk and implicate genes and gene pathways for targeted replication.


Asunto(s)
Predisposición Genética a la Enfermedad , Suicidio , Estudio de Asociación del Genoma Completo , Humanos , Proteínas Nucleares/genética , Proteínas Circadianas Period/genética , Polimorfismo de Nucleótido Simple , Receptores Acoplados a Proteínas G/genética , Proteína 1 de Unión a Repeticiones Teloméricas/genética , Factores de Transcripción/genética
8.
Int J Behav Med ; 26(3): 278-285, 2019 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-30963517

RESUMEN

BACKGROUND: Brooding, a type of rumination, and subjective social status (SSS) may be two interacting factors for cardiovascular disease (CVD). Our goal was to examine the relations of brooding and SSS with systolic blood pressure (SBP) and diastolic blood pressure (DBP), two measures of CVD. We predicted that [1] brooding and SSS are each related to SBP and DBP and [2] the interaction of brooding and SSS is linked to SBP and DBP. METHOD: In this cross-sectional study, college student participants (n = 240; 58.6% female, age: M = 23.95 years, SD = 8.62) completed demographics questionnaires, the Ruminative Response Scale, and MacArthur Subjective Social Status scale, and gave blood pressure samples. RESULTS: Linear models suggested that, for participants low in SSS, high brooding and DBP were positively related. For participants high in SSS, high brooding and low DBP were negatively related. There were no relations between SSS, brooding, and SBP. CONCLUSIONS: As predicted, for individuals with low SSS, more brooding was associated with higher DBP. Yet, in individuals with high SSS, more brooding was associated with lower DBP. There was no relation between SSS, brooding, and SBP. Our results suggest that brooding may serve as diathesis for some symptoms of CVD (i.e., high DBP but not high SBP) in individuals with low SSS. We discuss how other factors, like burnout or defensive pessimism, may contribute to the relation between high SSS, high brooding, and low DBP.


Asunto(s)
Presión Sanguínea/fisiología , Enfermedades Cardiovasculares/fisiopatología , Medio Social , Adolescente , Adulto , Estudios Transversales , Femenino , Humanos , Hipertensión/epidemiología , Masculino , Persona de Mediana Edad , Adulto Joven
9.
J Intellect Disabil Res ; 62(10): 864-874, 2018 10.
Artículo en Inglés | MEDLINE | ID: mdl-30141530

RESUMEN

BACKGROUND: Although burnout has been recognised as an important stress-related problem among staff working with people with intellectual and developmental disabilities (IDD), literature on the subject is limited yet emerging. The aim of this study is twofold: (1) to evaluate the level of burnout within different professions working with IDD; (2) to examine the association between socio-demographic, professional and organisational characteristics and burnout. METHOD: One hundred ninety-nine professionals working with people with IDD were enrolled in the study (66% response rate). Participants were recruited from several facilities that provide care for people with IDD of all ages, in the Jerusalem area and in other cities in central Israel. The anonymous questionnaires included valid and reliable measures of burnout, socio-demographic variables, professional variables and organisational variables. RESULTS: Participants' mean age was 38.3 years, and most were women. There were no significant differences in burnout levels among the different professionals. Role ambiguity, perceived overload, care-recipient group and job involvement were significant predictors of burnout. The model explained a high percentage (46.8%) of the observed variance. CONCLUSIONS: Most of these predictors are organisational measures. These findings demonstrate that organisational variables are more significantly associated with burnout of staff working with people with IDD than the socio-demographic factors or professional characteristics. Identifying and better understanding the specific factors associated with burnout among professionals working with IDD could facilitate unique intervention programs to reduce burnout levels in staff.


Asunto(s)
Agotamiento Profesional/diagnóstico , Discapacidades del Desarrollo/terapia , Personal de Salud/psicología , Discapacidad Intelectual/terapia , Instituciones Residenciales/organización & administración , Adulto , Anciano , Agotamiento Profesional/epidemiología , Femenino , Personal de Salud/estadística & datos numéricos , Humanos , Israel/epidemiología , Masculino , Persona de Mediana Edad , Adulto Joven
10.
Biopolymers ; 108(4)2017 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-28085180

RESUMEN

Hydrophobicity has proven to be an extremely useful parameter in small molecule drug discovery programmes given that it can be used as a predictive tool to enable rational design. For larger molecules, including peptoids, where folding is possible, the situation is more complicated and the average hydrophobicity (as determined by RP-HPLC retention time) may not always provide an effective predictive tool for rational design. Herein, we report the first ever application of partitioning experiments to determine the log D values for a series of peptoids. By comparing log D and average hydrophobicities we highlight the potential advantage of employing the former as a predictive tool in the rational design of biologically active peptoids.


Asunto(s)
Cromatografía Líquida de Alta Presión/métodos , Interacciones Hidrofóbicas e Hidrofílicas , Peptoides/química , Biblioteca de Péptidos
11.
Ann Clin Psychiatry ; 29(4): 258-265, 2017 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-29069111

RESUMEN

BACKGROUND: Despite the high prevalence of suicidality in psychiatrically hospitalized youth, its risk factors and impact on inpatient psychopharmacologic treatment are unknown. We identified characteristics associated with suicidality in psychiatrically hospitalized youth and determined the association of suicidality with subsequent psychopharmacologic interventions. METHODS: Medical records from consecutive psychiatric admissions to a large, acute care, urban, pediatric hospital were analyzed retrospectively (N = 1,309). Demographic, clinical, and treatment-related features of suicidal and nonsuicidal youth were characterized. Logistic regression identified predictors of suicidality, and multiple comparison analyses evaluated the association between suicidality and changes to antidepressant prescribing during inpatient course. RESULTS: Compared with nonsuicidal patients, inpatients who were suicidal were more likely to have a mood disorder or posttraumatic stress disorder, as well as Cannabis and alcohol use, were more commonly girls, and at least 13 years of age (all P ≤ .05). Hospitalization was shorter for suicidal patients, was more likely to be associated with antidepressant treatment (P ≤ .001), and among suicidal patients prescribed antidepressants at the time of admission, was associated with a greater likelihood of changing antidepressant treatment compared with nonsuicidal inpatients (P ≤ .05). CONCLUSIONS: These findings reveal differences between suicidal and nonsuicidal psychiatrically hospitalized youth and suggest that suicidality is associated with specific pharmacologic treatment approaches within this population.


Asunto(s)
Antidepresivos/uso terapéutico , Demografía/estadística & datos numéricos , Hospitales Psiquiátricos , Suicidio , Adolescente , Niño , Femenino , Humanos , Masculino , Trastornos del Humor , Estudios Retrospectivos , Factores de Riesgo , Trastornos por Estrés Postraumático
12.
Child Care Health Dev ; 43(2): 298-306, 2017 03.
Artículo en Inglés | MEDLINE | ID: mdl-27766678

RESUMEN

There is an urgent, agreed need to improve participation outcomes and interventions for children and young people with neurodisability. We worked together with service users and providers to design research into participation outcomes and interventions in neurodisability. We built on existing evidence about participation outcomes and interventions and the WHO International Classification of Functioning, Disability and Health. We: (1) specified seven participation outcome categories for measurement; (2) prioritized these for improvement: self-care, friends and social, and physical activity ranked the highest; (3) identified 11 potential intervention categories for targeting the top priority, self-care, through eight hypothesized change mechanisms and agreed for the interventions to be delivered as a 'Menu of Interventions' for personalized self-care support; and (4) designed a before-and-after mixed methods feasibility study to evaluate the Menu with children and young people (0-12 years) and their parents and therapists.


Asunto(s)
Personas con Discapacidad/rehabilitación , Trastornos del Neurodesarrollo/rehabilitación , Participación del Paciente , Niño , Preescolar , Ejercicio Físico , Estudios de Factibilidad , Humanos , Lactante , Recién Nacido , Relaciones Interpersonales , Estilo de Vida , Trastornos del Neurodesarrollo/fisiopatología , Evaluación de Resultado en la Atención de Salud/métodos , Proyectos de Investigación , Autocuidado
14.
Stem Cells ; 33(3): 848-58, 2015 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-25402778

RESUMEN

Promoting the expansion of adult stem cell populations offers the potential to ameliorate radiation or chemotherapy-induced bone marrow failure and allows for expedited recovery for patients undergoing these therapies. Previous genetic studies suggested a pivotal role for SH2 domain-containing inositol-5-phosphatase 1 (SHIP1) in limiting the size of the hematopoietic stem cell (HSC) compartment. The aim of this study was to determine whether our recent development of small molecule SHIP1 inhibitors offers the potential for pharmacological expansion of the HSC compartment in vivo. We show here that treatment of mice with aminosteroid inhibitors of SHIP1 (SHIPi) more than doubles the size of the adult mesenchymal stem cell (MSC) compartment while simultaneously expanding the HSC pool sixfold. Consistent with its ability to target SHIP1 function in vivo, SHIPi also significantly increases plasma granulocyte colony-stimulating factor (G-CSF) levels, a growth factor that supports proliferation of HSC. Here, we show that SHIPi-induced G-CSF production mediates HSC and MSC expansion, as in vivo neutralization of G-CSF abrogates the SHIPi-induced expansion of both the HSC and MSC compartments. Due to its expansionary effect on adult stem cell compartments, SHIPi represents a potential novel strategy to improve declining stem cell function in both therapy induced and genetically derived bone marrow failure syndromes.


Asunto(s)
Células Madre Hematopoyéticas/citología , Células Madre Hematopoyéticas/efectos de los fármacos , Células Madre Mesenquimatosas/citología , Células Madre Mesenquimatosas/efectos de los fármacos , Monoéster Fosfórico Hidrolasas/farmacología , Animales , Movimiento Celular/efectos de los fármacos , Movimiento Celular/fisiología , Factor Estimulante de Colonias de Granulocitos/biosíntesis , Células Madre Hematopoyéticas/metabolismo , Inositol Polifosfato 5-Fosfatasas , Masculino , Células Madre Mesenquimatosas/metabolismo , Ratones , Ratones Endogámicos C57BL , Fosfatidilinositol-3,4,5-Trifosfato 5-Fosfatasas
15.
J Evol Biol ; 29(11): 2311-2320, 2016 11.
Artículo en Inglés | MEDLINE | ID: mdl-27488414

RESUMEN

In many species, male secondary sexual traits have evolved via female choice as they confer indirect (i.e. genetic) benefits or direct benefits such as enhanced fertility or survival. In humans, the role of men's characteristically masculine androgen-dependent facial traits in determining men's attractiveness has presented an enduring paradox in studies of human mate preferences. Male-typical facial features such as a pronounced brow ridge and a more robust jawline may signal underlying health, whereas beards may signal men's age and masculine social dominance. However, masculine faces are judged as more attractive for short-term relationships over less masculine faces, whereas beards are judged as more attractive than clean-shaven faces for long-term relationships. Why such divergent effects occur between preferences for two sexually dimorphic traits remains unresolved. In this study, we used computer graphic manipulation to morph male faces varying in facial hair from clean-shaven, light stubble, heavy stubble and full beards to appear more (+25% and +50%) or less (-25% and -50%) masculine. Women (N = 8520) were assigned to treatments wherein they rated these stimuli for physical attractiveness in general, for a short-term liaison or a long-term relationship. Results showed a significant interaction between beardedness and masculinity on attractiveness ratings. Masculinized and, to an even greater extent, feminized faces were less attractive than unmanipulated faces when all were clean-shaven, and stubble and beards dampened the polarizing effects of extreme masculinity and femininity. Relationship context also had effects on ratings, with facial hair enhancing long-term, and not short-term, attractiveness. Effects of facial masculinization appear to have been due to small differences in the relative attractiveness of each masculinity level under the three treatment conditions and not to any change in the order of their attractiveness. Our findings suggest that beardedness may be attractive when judging long-term relationships as a signal of intrasexual formidability and the potential to provide direct benefits to females. More generally, our results hint at a divergence of signalling function, which may result in a subtle trade-off in women's preferences, for two highly sexually dimorphic androgen-dependent facial traits.


Asunto(s)
Conducta de Elección , Cara/anatomía & histología , Masculinidad , Conducta Sexual , Adulto , Belleza , Evolución Biológica , Femenino , Feminidad , Cabello , Humanos , Masculino , Adulto Joven
16.
BMC Health Serv Res ; 16(a): 374, 2016 08 11.
Artículo en Inglés | MEDLINE | ID: mdl-27515233

RESUMEN

BACKGROUND: HIV testing, diagnosis and treatment programs have expanded globally, particularly in resource-limited settings. Diagnosis must be followed by determination of treatment eligibility and referral to care prior to initiation of antiretroviral treatment (ART). However, barriers and delays along these early steps in the treatment cascade may impede successful ART initiation. New strategies are needed to facilitate the treatment cascade. We evaluated the role of on site CD4+ T cell count phlebotomy services by nurses in facilitating pre-ART care in a community-based voluntary counseling and testing program (CBVCT) in rural South Africa. METHODS: We retrospectively evaluated CBVCT services during five continuous time periods over three years: three periods when a nurse was present on site, and two periods when the nurse was absent. When a nurse was present, CD4 count phlebotomy was performed immediately after HIV testing to determine ART eligibility. When a nurse was absent, patients were referred to their local primary care clinic for CD4 testing. For each period, we determined the proportion of HIV-positive community members who completed CD4 testing, received notification of CD4 count results, as well as the time to test completion and result notification. RESULTS: Between 2010 and 2013, 7213 individuals accessed CBVCT services; of these, 620 (8.6 %) individuals were HIV-positive, 205 (33.1 %) were eligible for ART according to South African national CD4 count criteria, and 78 (38.0 % of those eligible) initiated ART. During the periods when a professional nurse was available to provide CD4 phlebotomy services, HIV-positive clients were significantly more likely to complete CD4 testing than during periods when these services were not available (85.5 % vs. 37.3 %, p < 0.001). Additionally, when nurses were present, individuals were significantly more likely to be notified of CD4 results (60.6 % vs. 26.7 %, p <0.001). The time from HIV screening to CD4 test completion was also significantly shorter during nurse presence than nurse absence (median 8 days (IQR 4-19) vs. 35 days (IQR 15-131), p < 0.001). CONCLUSIONS: These findings indicate that in addition to CBVCT, availability of on site CD4 phlebotomy may reduce loss along the pre-ART care cascade and facilitate timely entry into HIV care.


Asunto(s)
Atención Ambulatoria/organización & administración , Recuento de Linfocito CD4/métodos , Servicios de Salud Comunitaria/organización & administración , Infecciones por VIH/inmunología , Enfermeras y Enfermeros/organización & administración , Adulto , Consejo , Femenino , Infecciones por VIH/tratamiento farmacológico , Infecciones por VIH/epidemiología , Infecciones por VIH/enfermería , Accesibilidad a los Servicios de Salud , Humanos , Masculino , Sistemas de Atención de Punto , Derivación y Consulta , Estudios Retrospectivos , Población Rural , Sudáfrica/epidemiología
17.
Gynecol Oncol ; 137(3): 523-8, 2015 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-25888979

RESUMEN

OBJECTIVES: The aim of this study is to determine if peri-operative immune modulating dietary supplements decrease wound complications in gynecologic oncology patients undergoing laparotomy. METHODS: In July 2013 we instituted a practice change and recommended pre- and post-operative oral immune modulating diets (IMDs) to patients undergoing laparotomy. We retrospectively compared patients who received IMDs to those who did not for the study period July 2012 to June 2014. Our outcome of interest was the frequency of Centers for Disease Control surgical site infections (CDC SSIs). RESULTS: Of the 338 patients who underwent laparotomy during the study period, 112 (33%) received IMDs post-operatively. There were 89 (26%) wound complications, including 69 (78%) CDC SSI class 1, 7(8%) class 2 and 13(15%) class 3. Patients receiving IMDs had fewer wound complications than those who did not (19.6% vs. 33%, p=0.049). After controlling for variables significantly associated with the development of a wound complication (ASA classification, body mass index (BMI), history of diabetes mellitus or pelvic radiation, length of surgery and blood loss) consumption of IMDs remained protective against wound complications (OR 0.45, CI 0.25-0.84, p=0.013) and was associated with a 78% reduction in the incidence of CDC SSI class 2 and 3 infections (OR=0.22, CI 0.05-0.95, p=0.044). CONCLUSIONS: Post-operative IMDs are associated with fewer wound complications in patients undergoing laparotomy for gynecologic malignancy and may reduce the incidence of CDC SSI class 2 and 3 infections.


Asunto(s)
Nutrición Enteral/métodos , Neoplasias de los Genitales Femeninos/terapia , Infección de la Herida Quirúrgica/prevención & control , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Femenino , Neoplasias de los Genitales Femeninos/cirugía , Humanos , Laparotomía/efectos adversos , Laparotomía/métodos , Masculino , Persona de Mediana Edad , Periodo Posoperatorio , Factores de Riesgo , Resultado del Tratamiento , Adulto Joven
18.
J Evol Biol ; 27(2): 437-48, 2014 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-24456226

RESUMEN

Males from different populations of the same species often differ in their sexually selected traits. Variation in sexually selected traits can be attributed to sexual selection if phenotypic divergence matches the direction of sexual selection gradients among populations. However, phenotypic divergence of sexually selected traits may also be influenced by other factors, such as natural selection and genetic constraints. Here, we document differences in male sexual traits among six introduced Australian populations of guppies and untangle the forces driving divergence in these sexually selected traits. Using an experimental approach, we found that male size, area of orange coloration, number of sperm per ejaculate and linear sexual selection gradients for male traits differed among populations. Within populations, a large mismatch between the direction of selection and male traits suggests that constraints may be important in preventing male traits from evolving in the direction of selection. Among populations, however, variation in sexual selection explained more than half of the differences in trait variation, suggesting that, despite within-population constraints, sexual selection has contributed to population divergence of male traits. Differences in sexual traits were also associated with predation risk and neutral genetic distance. Our study highlights the importance of sexual selection in trait divergence in introduced populations, despite the presence of constraining factors such as predation risk and evolutionary history.


Asunto(s)
Preferencia en el Apareamiento Animal , Poecilia/fisiología , Animales , Color , Femenino , Flujo Genético , Variación Genética , Geografía , Especies Introducidas , Masculino , Poecilia/anatomía & histología , Dinámica Poblacional , Queensland
19.
Depress Anxiety ; 31(2): 107-14, 2014 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-23893710

RESUMEN

BACKGROUND: Little is known regarding changes in the hypothalamic-pituitary-adrenal axis (HPA axis) of adolescent girls with and without posttraumatic stress disorder (PTSD) who have recently experienced sexual abuse. Therefore, in this pilot study, we utilized non-stressed home saliva collection three times a day for three days to assess the levels, diurnal variation and awakening response of cortisol in recently sexually abused adolescent girls. METHODS: Twenty-four adolescent girls (mean age: 15 ± 1.5 years) with a history of recent sexual abuse (sexual abuse occurred 1-6 months prior to study enrollment) and 12 healthy, nontraumatized comparison subjects (mean age: 14.8 ± 1.3 years) collected saliva at home upon awakening, 30 min after waking, and in the late afternoon on three consecutive school days. RESULTS: Among sexually abused girls, flattening of the morning cortisol awakening response was associated with PTSD severity (r = -.41, P < .05) as well as intrusive symptoms (r = -.42, P < .05). Increased adversity prior to sexual abuse was also associated with flattening of the cortisol awakening response (r = -.53, P < .01). CONCLUSIONS: Attenuation of the cortisol awakening response in recently sexually abused girls suggests that alterations in HPA-axis functioning may occur relatively proximate to the traumatic event and correlate with symptom severity of PTSD, intrusive symptoms, and hyperarousal symptoms. These data raise the possibility that subacute alterations in the dynamic secretion of cortisol are directly related to the pathophysiology of sexual abuse-related PTSD symptoms in adolescent girls.


Asunto(s)
Hidrocortisona/metabolismo , Delitos Sexuales , Trastornos por Estrés Postraumático/metabolismo , Adolescente , Ritmo Circadiano/fisiología , Femenino , Humanos , Sistema Hipotálamo-Hipofisario/metabolismo , Sistema Hipotálamo-Hipofisario/fisiopatología , Proyectos Piloto , Sistema Hipófiso-Suprarrenal/metabolismo , Sistema Hipófiso-Suprarrenal/fisiopatología , Saliva/metabolismo , Índice de Severidad de la Enfermedad , Trastornos por Estrés Postraumático/fisiopatología
20.
Optom Vis Sci ; 91(3): e76-82, 2014 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-24413277

RESUMEN

PURPOSE: Although a chordoma is extremely rare, it commonly presents with ocular symptoms, often impacting one or more cranial nerves. CASE REPORT: The authors describe a unique case of rapidly developing intracranial chordoma that recurred 9 years after the original mass was successfully diagnosed and treated. It is noteworthy that, although the tumor originated within the cranium at the base of the skull, it presented primarily with clinical signs of a unilateral orbital mass because of tumor extension. CONCLUSIONS: The lifetime recurrence rate for chordoma is high after treatment; therefore, a high level of suspicion is warranted in any patient with new symptoms and a history of intracranial chordoma.


Asunto(s)
Cordoma/diagnóstico , Recurrencia Local de Neoplasia , Neoplasias de la Base del Cráneo/diagnóstico , Cordoma/fisiopatología , Cordoma/cirugía , Diplopía/diagnóstico , Humanos , Masculino , Persona de Mediana Edad , Procedimientos Neuroquirúrgicos , Neoplasias de la Base del Cráneo/fisiopatología , Neoplasias de la Base del Cráneo/cirugía , Tomografía Computarizada por Rayos X , Agudeza Visual/fisiología , Campos Visuales/fisiología
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