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1.
Clin Infect Dis ; 78(4): 1065-1072, 2024 Apr 10.
Artigo em Inglês | MEDLINE | ID: mdl-37946601

RESUMO

BACKGROUND: Data are limited on influenza vaccine effectiveness (VE) in the prevention of influenza-related hospitalizations in older adults and those with underlying high-risk comorbidities. METHODS: We conducted a prospective, test-negative, case-control study at 2 US hospitals from October 2018-March 2020 among adults aged ≥50 years hospitalized with acute respiratory illnesses (ARIs) and adults ≥18 years admitted with congestive heart failure (CHF) or chronic obstructive pulmonary disease (COPD) exacerbations. Adults were eligible if they resided in 1 of 8 counties in metropolitan Atlanta, Georgia. Nasopharyngeal and oropharyngeal swabs were tested using BioFire FilmArray (bioMérieux, Inc.) respiratory panel, and standard-of-care molecular results were included when available. Influenza vaccination history was determined from the Georgia vaccine registry and medical records. We used multivariable logistic regression to control for potential confounders and to determine 95% confidence intervals (CIs). RESULTS: Among 3090 eligible adults, 1562 (50.6%) were enrolled. Of the 1515 with influenza vaccination history available, 701 (46.2%) had received vaccination during that season. Influenza was identified in 37 (5.3%) vaccinated versus 78 (9.6%) unvaccinated participants. After adjustment for age, race/ethnicity, immunosuppression, month, and season, pooled VE for any influenza-related hospitalization in the eligible study population was 63.1% (95% CI, 43.8-75.8%). Adjusted VE against influenza-related hospitalization for ARI in adults ≥50 years was 55.9% (29.9-72.3%) and adjusted VE against influenza-related CHF/COPD exacerbation in adults ≥18 years was 80.3% (36.3-93.9%). CONCLUSIONS: Influenza vaccination was effective in preventing influenza-related hospitalizations in adults aged ≥50 years and those with CHF/COPD exacerbations during the 2018-2020 seasons.


Assuntos
Insuficiência Cardíaca , Vacinas contra Influenza , Influenza Humana , Doença Pulmonar Obstrutiva Crônica , Humanos , Idoso , Influenza Humana/epidemiologia , Influenza Humana/prevenção & controle , Estudos de Casos e Controles , Estudos Prospectivos , Pandemias , Eficácia de Vacinas , Doença Pulmonar Obstrutiva Crônica/complicações , Doença Pulmonar Obstrutiva Crônica/epidemiologia , Insuficiência Cardíaca/epidemiologia , Vacinação , Hospitalização , Estações do Ano
2.
Artigo em Inglês | MEDLINE | ID: mdl-38972572

RESUMO

STUDY OBJECTIVE: To examine racial disparities in route of hysterectomy and perioperative outcomes before and after expansion of high-volume minimally invasive surgeons (>10 minimally invasive hysterectomies (MIH)/year) DESIGN: Retrospective cohort study SETTING: Multi-center academic teaching institution PATIENTS: All patients who underwent a scheduled hysterectomy for benign indications during 2018 (pre-intervention) and 2022 (post-intervention) INTERVENTIONS: Recruitment of Fellowship in Minimally Invasive Gynecologic Surgery (FMIGS)- trained faculty and increased surgical training for academic specialists in obstetrics and gynecology occurred in 2020. MEASUREMENTS AND MAIN RESULTS: Patients in the pre-intervention cohort (n=171) were older (median age 45 years vs. 43 years, p=0.003) while patients in the post-intervention cohort (n=234) had a higher burden of comorbidities (26% ASA class III vs. 19%, p=0.03). Uterine weight was not significantly different between cohorts (p=0.328). Between the pre-intervention and post-intervention cohorts, high-volume minimally invasive surgeons increased from 27% (n=4) to 44% (n=7) of those performing hysterectomies within the division and percentage of hysterectomies performed via minimally invasive route increased (63% vs. 82%, p<0.001). In the pre-intervention cohort, Black patients had a lower percentage of hysterectomies performed via minimally invasive route compared to White patients (Black = 56% MIH vs. White = 76% MIH, p=0.014). In the post-intervention cohort, differences by race were no longer significant (Black = 78% MIH vs. White = 87% MIH, p= 0.127). There was a significant increase (22%) in MIH for Black patients between cohorts (p<0.001). After adjusting for age, BMI, ASA class, prior surgery, and uterine weight, disparities by race were no longer present in the post-intervention cohort. Perioperative outcomes including length of stay (p<0.001), infection rates (p=0.002) and blood loss (p=0.01) improved post-intervention. CONCLUSION: Increasing FMIGs-trained gynecologic surgeons and providing more opportunities in robotic/laparoscopic training for academic specialists may improve access to MIH for Black patients and reduce disparities.

3.
Phytochem Anal ; 35(3): 476-482, 2024 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-37984858

RESUMO

INTRODUCTION: Olive leaves, abundant by-products of the olive oil industry, are a rich source of oleuropein, an important polyphenol in olive leaves. So far, no published methods have been validated using matrix standards for oleuropein quantification in olive leaves. OBJECTIVES: The study aimed to develop an HPLC method for oleuropein determination in olive leaves using spiked matrix standards prepared from a blank olive leaf matrix, to validate the method with respect to aqueous standards, and cross-validate the HPLC method with UPLC-MS and UPLC-UV techniques. METHODOLOGY: Oleuropein was extracted into methanol and analysed by HPLC with fluorescence detection (FLD; excitation and emission wavelengths 281 and 316 nm, respectively) and by UPLC-MS-UV. For validation, calibration curves of spiked matrix standards (0.4 to 4.8 mg/g) were analysed by the three methods over several days. Oleuropein was then analysed in French olive varieties. RESULTS: For the HPLC-FLD method, repeatability and intermediate precision were less than 5% RSD and linearity was demonstrated by the Fischer test. Differences in results of the spiked placebos by the three methods were non-significant, as confirmed by ANOVA. Extraction recovery was >90%, and there was a strong linear relationship between authentic and spiked matrix standards. The determination of oleuropein in French olive varieties is reported, including analysis in "Olivière" cultivar for the first time, leaves of which contained twice the amount of oleuropein compared with "Picholine". CONCLUSION: Accurate quantification of oleuropein is possible using aqueous standards. Cross-validation indicates that selective analysis can equally be carried out by HPLC or by UPLC-MS techniques.


Assuntos
Espectrometria de Massa com Cromatografia Líquida , Olea , Cromatografia Líquida de Alta Pressão/métodos , Cromatografia Líquida , Iridoides , Espectrometria de Massas em Tandem/métodos , Glucosídeos Iridoides/análise , Azeite de Oliva , Folhas de Planta/química
4.
Sociol Health Illn ; 45(2): 366-385, 2023 02.
Artigo em Inglês | MEDLINE | ID: mdl-36377646

RESUMO

Men's emotions in intimate partner relationships have received little research attention. The current interpretive descriptive study included 30 Canadian-based men to address the research question: What are the connections between masculinities and men's emotions in and after intimate partner relationships? Three inductively derived themes included emergent distressing emotions wherein participants' predominance for holding in abeyance their concerns about the relationship manifested varying levels of emotional stoicism. Within this context most men denied or downplayed and did not express their emotions. When the relationship broke, men were overwhelmed by mixed and weighty break-up emotions comprising diverse and often-times discordant emotions, including sadness, shame, anger, regret and guilt, calling into question men's rationality for deciphering and expressing what was concurrently but inexplicably felt. Shame and anger were prominent emotions demanding the participant's attention to all that happened in and at the end of the relationship. In the third theme, understanding and transitioning after-burn emotions, participant's grief levered their efforts, including soliciting professional help for deconstructing, reframing and expressing their emotions in the aftermath of the partnership ending. The findings contextualise and in some instances counter claims about the utility of men's emotional stoicism by mapping participants' feelings in and after intimate partner relationships.


Assuntos
Emoções , Masculinidade , Masculino , Humanos , Canadá , Comportamento Sexual , Parceiros Sexuais , Saúde do Homem
5.
Teach Learn Med ; : 1-11, 2023 Jul 14.
Artigo em Inglês | MEDLINE | ID: mdl-37450615

RESUMO

Phenomenon: Improving the learning environment (LE), particularly for students underrepresented in medicine (URM), has become an important goal for institutions that provide undergraduate and graduate medical education. Until recently, research and intervention development have been limited by the lack of comprehensive theoretical frameworks. A multi-dimensional conceptual model of the medical school environment, developed by Gruppen and colleagues in 2019, provides a useful framework for guiding research and interventions in this area.Approach: Using Gruppen et al's model, this study investigated experiences of the LE from the perspectives of both URM and non-URM students at a medical school in New York City. In examining experiences of the organizational, social, and physical domains of the LE, we sought to explore the symbolic and experiential links across domains and identify concrete needs for improvement.Findings: Institutional structures and policies, features of the built environment, and social relationships that put learning first and generated a sense of community were highly valued. Although both URM and non-URM students shared many perceptions and experiences, URM students expressed heightened vulnerability to the experiences of devaluation and exclusion.Insights: All participants in the study greatly appreciated aspects of the LE that made them feel like valued members of the community. Medical schools should approach the task of improving the LE for URM students using a comprehensive, multi-dimensional approach.

6.
Am J Hematol ; 97(3): 256-266, 2022 03 01.
Artigo em Inglês | MEDLINE | ID: mdl-34748664

RESUMO

Thrombosomes are trehalose-stabilized, freeze-dried group O platelets with a 3-year shelf life. They can be stockpiled, rapidly reconstituted, and infused regardless of the recipient's blood type. Thrombosomes thus represent a potential alternative platelet transfusion strategy. The present study assessed the safety and potential early signals of efficacy of Thrombosomes in bleeding thrombocytopenic patients. We performed an open-label, phase 1 study of single doses of allogeneic Thrombosomes at three dose levels in three cohorts, each consisting of eight patients who had hematologic malignancies, thrombocytopenia, and bleeding. Adverse events, dose-limiting toxicities (DLTs), World Health Organization (WHO) bleeding scores, and hematology values were assessed. No DLTs were reported. The median age was 59 years (24-71). Most patients had AML (58%) or ALL (29%), followed by MDS (8%) and myeloproliferative neoplasm (4%). The WHO scores of 22 patients who were actively bleeding at a total of 27 sites at baseline either improved (n = 17 [63%]) or stabilized (n = 10 [37%]) through day 6. Twenty-four hours after infusion, 12 patients (50%) had a clinically significant platelet count increase. Of eight patients who received no platelet transfusions for 6 days after Thrombosomes infusion, 5 had a clinically significant increase in platelet count of ≥5000 platelets/µL and 2 had platelet count normalization. Thrombosomes doses up to 3.78 × 108 particles/kg demonstrated safety in 24 bleeding, thrombocytopenic patients with hematological malignancies. Thrombosomes may represent an alternative to conventional platelets to treat bleeding. A phase 2 clinical trial in a similar patient population is underway.


Assuntos
Plaquetas , Preservação de Sangue , Neoplasias Hematológicas/terapia , Hemorragia/terapia , Transfusão de Plaquetas , Trombocitopenia/terapia , Adulto , Idoso , Feminino , Liofilização , Humanos , Masculino , Pessoa de Meia-Idade
7.
Eur J Cancer Care (Engl) ; 31(6): e13733, 2022 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-36259243

RESUMO

Oral anti-cancer medications (OAMs) are increasingly prescribed in oncology, and although administered at home, ongoing monitoring generally requires the patient to attend an acute hospital. With the requirement to provide safe yet convenient care and to increase hospital capacity, the potential exists to transition this cohort of patients to the community to be assessed by oncology health care professionals (HCPs). The onset of COVID-19 facilitated this planned transition. OBJECTIVE: The primary objective was to understand stakeholders' perceptions of a community-based advanced nurse practitioner (ANP)-led integrated OAM care model for adults. METHODS: Qualitative data from interviews and focus groups were obtained from 33 individuals; either service users who attended ANP-led OAM clinics or stakeholders involved in OAM care. Data were subsequently analysed using thematic analysis. RESULTS: Four themes were identified and included reflection on pre-COVID-19 system, role of ANP in current OAM care, importance of robust communication and infrastructural requirements for transition to an integrated OAM care model. CONCLUSION: This study demonstrated that patients and HCPs perceived the proposal positively. They identified the ANP as the appropriate HCP to care for this cohort and the importance of communication and strategic planning for transitioning this model of care to the community setting. CLINICAL TRIAL REGISTRATION: ISRCTN10401455.


Assuntos
Tratamento Farmacológico da COVID-19 , Neoplasias Bucais , Profissionais de Enfermagem , Adulto , Humanos , Pesquisa Qualitativa
8.
Qual Health Res ; 32(10): 1464-1476, 2022 08.
Artigo em Inglês | MEDLINE | ID: mdl-35758178

RESUMO

Deleterious effects of separation and divorce on men's mental health are well-documented; however, little is known about their help-seeking when adjusting to these all-too-common life transitions. Employing interpretive descriptive methods, interviews with 47 men exploring their mental health help-seeking after a relationship break-up were analyzed in deriving three themes: (1) Solitary work and tapping established connections, (2) Reaching out to make new connections, and (3) Engaging professional mental health care. Men relying on solitary work and established connections accessed relationship-focused self-help books, online resources, and confided in friends and/or family. Some participants supplemented solitary work by reaching out to make new connections including peer-based men's groups and education and social activities. Comprising first-time, returning, and continuing users, many men responded to relationship break-up crises by engaging professional mental health care. The findings challenge longstanding commentaries that men actively avoid mental health promotion by illuminating wide-ranging help resources.


Assuntos
Masculinidade , Saúde Mental , Humanos , Masculino , Homens/psicologia , Saúde do Homem , Parceiros Sexuais
9.
Health Promot J Austr ; 33(1): 126-137, 2022 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-33561896

RESUMO

ISSUE ADDRESSED: Health outcomes linked to men's relationships have the potential to both promote and risk the well-being of males and their families. The current scoping review provides a synthesis of men's relationship programs (excluding criminal court mandated services) in Australia, Canada and the United Kingdom to distil predominant program designs, access points, delivery modes and evaluative strategies. METHODS: Databases CINAHL, Medline, PsycInfo and Web of Science were searched for eligible articles published January 2010 and June 2020. The inclusion criteria consisted of empirical studies focussed on relationship programs for men. RESULTS: The review identified 21 articles comprising eight focussed on Fathering Identities as the Catalyst for Relationship Building and 13 targeting Men's Behaviour Change in Partner Relationships. Findings highlight the prevalence of group-based, in-person programs which men accessed via third party or self-referrals. Fathering programs highlighted the impact of men's violence on their children in appealing to attendees to strategise behavioural adjustments. Men's partner relationship programs emphasised self-control amid building strategies for proactively dealing with distress and conflict. Program evaluations consistently reported attendee feedback to gauge the acceptability and usefulness of services. CONCLUSIONS: That most men attending fathering and partner relationship programs were referred as a result of domestic violence and/or intimate partner violence underscores men's reticence for proactively seeking help as well as the absence of upstream relationship programs. There are likely enormous gains to be made by norming boys and men's relationship programs to prevent rather than correct violent and/or abusive behaviours.


Assuntos
Saúde do Homem , Violência , Austrália , Criança , Humanos , Masculino , Violência/prevenção & controle
10.
Br J Clin Pharmacol ; 87(3): 1150-1154, 2021 03.
Artigo em Inglês | MEDLINE | ID: mdl-32687645

RESUMO

AIMS: To assess clinical outcomes and adverse drug events in patients hospitalised with COVID-19 treated with off-label hydroxychloroquine (HCQ) and azithromycin (Az). METHODS: We performed a retrospective analysis of hospitalised patients who had a positive polymerase chain reaction test for SARS-CoV-2 and received HCQ plus Az or no targeted therapy. The primary end point was clinical improvement on day 7 defined as either hospital discharge or an improvement of 2 points on a 6-category ordinal scale. Secondary outcomes included mortality at day 28, intensive care admission, requirement for mechanical ventilation and incidence of adverse events. RESULTS: Data from a total of 134 patients were evaluated; 82 patients received HCQ/Az and 52 patients received no targeted therapy. Clinical improvement was seen in 26.8% of patients who received HCQ/Az but this was not significant. The rates of intensive care transfer and mechanical ventilation were higher in the treatment group, but these differences were not significant. Mortality at day 28 was significantly higher in the treatment group (P = .03). Hypoglycaemia elevated liver function tests and QT prolongation were monitored in both groups. The risk of QT prolongation was significantly higher in the treatment group. Treatment was stopped early in 6 (7.3%) patients due to adverse events. CONCLUSION: Although patients who received HCQ/Az were more severely ill the administration of these repurposed drugs did not result in clinical improvement and was associated with a significant increase in toxicity. This descriptive study highlights the importance of monitoring all repurposed agents for adverse events.


Assuntos
Antibacterianos/efeitos adversos , Antibacterianos/uso terapêutico , Antimaláricos/efeitos adversos , Antimaláricos/uso terapêutico , Azitromicina/efeitos adversos , Azitromicina/uso terapêutico , Tratamento Farmacológico da COVID-19 , Hidroxicloroquina/efeitos adversos , Hidroxicloroquina/uso terapêutico , Adulto , Idoso , Idoso de 80 Anos ou mais , COVID-19/mortalidade , Cuidados Críticos/estatística & dados numéricos , Reposicionamento de Medicamentos , Feminino , Hospitalização , Humanos , Masculino , Pessoa de Meia-Idade , Uso Off-Label , Alta do Paciente/estatística & dados numéricos , Respiração Artificial/estatística & dados numéricos , Estudos Retrospectivos , Resultado do Tratamento , Adulto Jovem
11.
Can J Psychiatry ; 66(5): 433-445, 2021 05.
Artigo em Inglês | MEDLINE | ID: mdl-33719600

RESUMO

OBJECTIVE: Suicide in Canadian men is high and rising. Research consistently indicates increased suicide risk in male subgroups including sexual minority, Indigenous, middle-aged, and military men. The current scoping review addresses the research question: Among male subgroups featured in Canadian suicide research, what are the key findings to inform suicide prevention efforts?. METHOD: A scoping review was undertaken in accord with PRISMA-ScR guidelines. Structured searches were conducted in CIHAHL, Medline, PsychInfo, and Web of Science to identify studies reporting suicidality (suicidal ideation, plans and/or attempts) and suicide among men in Canada. Inclusion criteria comprised primary empirical studies featuring Canadian male subgroups published in English from 2009 to 2020 inclusive. RESULTS: Sixty-eight articles met the inclusion criteria, highlighting significant rates of male suicidality and/or suicide in 3 categories: (1) health inequities (n = 29); (2) age-specific (n = 30); and (3) occupation (n = 9). The health inequities category included sexual minority men, Indigenous, and other marginalized males (i.e., homeless, immigrant men, and men who use opiates). Age-specific men focused on adolescents and youth, and middle-aged and older males. Active military, veterans, and first responders featured in the occupation category. Studies compared at risk male subgroups to females, general male populations, and/or other marginalized groups in emphasizing mental health disparities and increased suicide risk. Some men's suboptimal connections to existing mental health care services were also highlighted. CONCLUSION: While male subgroups who are vulnerable to suicidality and suicide were consistently described, these insights have not translated to tailored upstream suicide prevention services for Canadian boys and men. There may be some important gains through integrating social and mental health care services for marginalized men, implementing school-based masculinity programs for adolescent males, orientating clinicians to the potential for men's mid-life suicide risks (i.e., separation, bereavement, retirement) and lobbying employers to norm help-seeking among activate military, veterans, and first responder males.


Assuntos
Saúde do Homem , Prevenção do Suicídio , Adolescente , Idoso , Canadá/epidemiologia , Feminino , Humanos , Masculino , Masculinidade , Pessoa de Meia-Idade , Ideação Suicida
12.
Br J Nurs ; 30(17): S24-S30, 2021 Sep 23.
Artigo em Inglês | MEDLINE | ID: mdl-34605263

RESUMO

Myeloproliferative neoplasms (MPNs) are associated with a high disease burden, reduced quality of life and shortened survival. The aim of this questionnaire was to gain patients' and caregivers' perspectives on the impact of living with an MPN in the Republic of Ireland. An Irish adaptation of the 'Global MPN Landmark survey' was conducted. Fifty-one patients and 44 caregivers completed the questionnaire. Patients reported a wide variety of symptoms at the time of questionnaire completion; fatigue, bone pain and pruritus being most frequently reported. Approximately one-third of respondents from each of the groups (patients and caregivers) reported a negative impact of MPNs on their emotional wellbeing and daily lives. The study findings revealed that, despite treatment, symptom burden remains high, and several unmet needs exist, including educational, emotional and peer group support. Interventions that focus on reducing symptom burden and addressing these unmet needs, may improve the quality of life for patients with MPNs and their caregivers.


Assuntos
Cuidadores , Qualidade de Vida , Efeitos Psicossociais da Doença , Fadiga , Humanos , Irlanda
13.
J Gynecol Surg ; 37(1): 89-91, 2021 Feb 01.
Artigo em Inglês | MEDLINE | ID: mdl-35153453

RESUMO

Despite the advantages of a decreased risk of epithelial-cell ovarian cancer and the extremely minimally invasive nature of the procedure, combined salpingectomy and endometrial ablation is a potentially underused procedure in the United States to treat abnormal uterine bleeding and desired sterilization. The lack of utilization of this combined procedure might be based on factors other than clinical considerations, including slow acceptance and adoption of Committee Opinions expressing the value of salpingectomy over sterilization. Committee Opinions and randomized clinical trials have demonstrated the benefit of salpingectomy for sterilization and epithelial-cancer risk reduction, and there could be an additional protection against postablation tubal sterilization syndrome. This Commentary discusses the advantages and rationale for consideration of expanding usage of the combined approach.

14.
Psychol Med ; 50(3): 507-514, 2020 02.
Artigo em Inglês | MEDLINE | ID: mdl-30867085

RESUMO

BACKGROUND: Postmortem human brain studies provide the molecular, cellular, and circuitry levels of resolution essential for the development of mechanistically-novel interventions for cognitive deficits in schizophrenia. However, the absence of measures of premortem cognitive aptitude in postmortem subjects has presented a major challenge to interpreting the relationship between the severity of neural alterations and cognitive deficits within the same subjects. METHODS: To begin addressing this challenge, proxy measures of cognitive aptitude were evaluated in postmortem subjects (N = 507) meeting criteria for schizophrenia, major depressive or bipolar disorder, and unaffected comparison subjects. Specifically, highest levels of educational and occupational attainment of the decedent and their parents were obtained during postmortem psychological autopsies. RESULTS: Consistent with prior findings in living subjects, subjects with schizophrenia had the lowest educational and occupational attainment relative to all other subject groups, and they also failed to show the generational improvement in attainment observed in all other subject groups. CONCLUSIONS: Educational and occupational attainment data obtained during postmortem psychological autopsies can be used as proxy measures of premortem cognitive function to interrogate the neural substrate of cognitive dysfunction in schizophrenia.


Assuntos
Transtornos Cognitivos/psicologia , Cognição , Escolaridade , Ocupações , Esquizofrenia/patologia , Psicologia do Esquizofrênico , Adulto , Idoso , Autopsia , Transtorno Bipolar/psicologia , Transtorno Depressivo Maior/psicologia , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Pais
15.
Am J Hematol ; 95(11): 1296-1303, 2020 11.
Artigo em Inglês | MEDLINE | ID: mdl-32697348

RESUMO

Stroma-leukemia interactions mediated by CXCR4, CD44, VLA4, and their respective ligands contribute to therapy resistance in FLT3-ITD-mutated acute myelogenous leukemia (AML). We conducted a phase 1 study with the combination of sorafenib (a FLT3-ITD inhibitor), plerixafor (a SDF-1/CXCR4 inhibitor), and G-CSF (that cleaves SDF-1, CD44, and VLA4). Twenty-eight patients with relapsed/refractory FLT3-ITD-mutated AML were enrolled from December 2010 to December 2013 at three dose levels of sorafenib (400, 600, and 800 mg twice daily) and G-CSF and plerixafor were administered every other day for seven doses starting on day one. Sorafenib 800 mg twice daily was selected for the expansion phase. While no dose-limiting toxicities (DLT) were encountered in the four-week DLT window, hand-foot syndrome and rash were seen beyond the DLT window, which required dose reductions in most patients. The response rate was 36% (complete response (CR) = 4, complete remission with incomplete platelet recovery (CRp) = 4, complete remission with incomplete hematologic recovery (CRi) = 1, and partial response (PR) = 1) for the intention to treat population. Treatment resulted in 58.4 and 47 mean fold mobilization of blasts and CD34 /38- stem/progenitor cells, respectively, to the circulation. Expression of the adhesion molecules CXCR4, CD44, and VLA4 on circulating leukemia cells correlated negatively with the mobilization of CD34+/38-, CD34+/38-/123+ "progenitor" cells (all P ≤ .002). Mass cytometry analysis of sequential samples from two patients demonstrated resistance emerging early on from sub-clones with persistent Akt and/or ERK signaling. In conclusion, the strategy of combined inhibition of FLT3 kinase and stromal adhesive interactions has promising activity in relapsed/refractory, FLT3-ITD-mutated AML, which warrants further evaluation in the front-line setting.


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/administração & dosagem , Leucemia Mieloide Aguda , Mutação , Tirosina Quinase 3 Semelhante a fms , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Protocolos de Quimioterapia Combinada Antineoplásica/efeitos adversos , Benzilaminas , Ciclamos , Intervalo Livre de Doença , Feminino , Fator Estimulador de Colônias de Granulócitos/administração & dosagem , Fator Estimulador de Colônias de Granulócitos/efeitos adversos , Compostos Heterocíclicos/administração & dosagem , Compostos Heterocíclicos/efeitos adversos , Humanos , Leucemia Mieloide Aguda/sangue , Leucemia Mieloide Aguda/tratamento farmacológico , Leucemia Mieloide Aguda/genética , Leucemia Mieloide Aguda/mortalidade , Masculino , Pessoa de Meia-Idade , Sorafenibe/administração & dosagem , Sorafenibe/efeitos adversos , Taxa de Sobrevida , Tirosina Quinase 3 Semelhante a fms/sangue , Tirosina Quinase 3 Semelhante a fms/genética
16.
Proc Natl Acad Sci U S A ; 114(43): 11530-11535, 2017 10 24.
Artigo em Inglês | MEDLINE | ID: mdl-29073082

RESUMO

The intestinal epithelium is a major site for the conversion of dietary ß-carotene to retinaldehyde by the enzyme BCO1. The majority of retinaldehyde is further metabolized to retinol (vitamin A), esterified and packaged into triacylglycerol-rich chylomicrons for bodily distribution. Some serve on-site for the synthesis of retinoic acid, a hormone-like compound, which exerts pleiotropic and dominant effects on gastrointestinal immunity. We report here that the intestine-specific homeobox protein ISX is critical to control the metabolic flow of ß-carotene through this important branching point of vitamin A metabolism. This transcription factor represses Bco1 gene expression in response to retinoic acid signaling. In ISX-deficient mice, uncontrolled Bco1 gene expression led to increased retinoid production in the intestine. Systemically, this production resulted in highly elevated hepatic retinoid stores. In the intestine, it increased the expression of retinoic acid-inducible target genes such as Aldh1a2, Dhrs3, and Ccr9 The ß-carotene-inducible disruption of retinoid homeostasis affected gut-homing and differentiation of lymphocytes and displayed morphologically in large lymphoid follicles along the intestine. Furthermore, it was associated with an infiltration of the pancreas by gut-derived lymphocytes that manifested as a pancreatic insulitis with ß-islet cell destruction and systemic glucose intolerance. Thus, our study identifies an important molecular interlink between diet and immunity and indicates that vitamin A homeostasis must be tightly controlled by ISX to maintain immunity and tolerance at the intestinal barrier.


Assuntos
Dieta , Intestinos/imunologia , Fatores de Transcrição/metabolismo , Oxirredutases do Álcool/genética , Oxirredutases do Álcool/metabolismo , Aldeído Desidrogenase/genética , Aldeído Desidrogenase/metabolismo , Família Aldeído Desidrogenase 1 , Ração Animal/análise , Animais , Glicemia , Feminino , Regulação da Expressão Gênica/efeitos dos fármacos , Genótipo , Glucose/metabolismo , Homeostase , Camundongos , Receptores CCR/genética , Receptores CCR/metabolismo , Retinal Desidrogenase , Retinoides/biossíntese , Linfócitos T/fisiologia , Fatores de Transcrição/genética , beta-Caroteno 15,15'-Mono-Oxigenase/genética , beta-Caroteno 15,15'-Mono-Oxigenase/metabolismo
17.
Pediatr Radiol ; 50(8): 1102-1106, 2020 07.
Artigo em Inglês | MEDLINE | ID: mdl-32462306

RESUMO

BACKGROUND: Hypertrophic pyloric stenosis (HPS) is a common cause of gastric outlet obstruction in young infants. Infants with HPS present with projectile vomiting, sometimes have electrolyte abnormalities and typically undergo pyloromyotomy to alleviate the obstruction. Abdominal US is the gold standard imaging study for diagnosis. Case reports of incidental hepatic portal venous gas have been reported in infants with HPS; however, no large studies have been conducted to determine the incidence or possible clinical implications of this finding. OBJECTIVE: To assess the incidence of portal venous gas in infants with HPS and to determine whether the presence of this gas in infants with HPS indicates a more unstable patient, increased length of stay or worse outcome. MATERIALS AND METHODS: We conducted a retrospective review of sonographic reports containing "pyloric stenosis," excluding negative descriptor, at a tertiary-care children's hospital from November 2010 to September 2017. Data collected included pyloric thickness/length, liver evaluation, portal venous gas, any additional imaging, demographics, symptomatology days, electrolyte abnormality, and length of hospital stay. RESULTS: In a 7-year period, 545 US exams were positive for HPS. Of these, 334 exams included enough hepatic parenchyma to evaluate for portal venous gas. Infants in 6 of the 334 exams demonstrated portal venous gas (1.8%). Clinical presentation (length of symptoms and electrolyte abnormalities), demographics (male predominance and age at presentation) and imaging characteristics (pyloric thickness and length) were similar for the HPS groups with and without portal venous gas. There was no significant difference in outcome or length of hospital stay. CONCLUSION: Visualization of portal venous gas in infants with HPS is not rare and appears benign, without need for further imaging. Portal venous gas in infants with HPS does not portend a more severe patient presentation or outcome.


Assuntos
Veia Porta/diagnóstico por imagem , Estenose Pilórica Hipertrófica/diagnóstico por imagem , Ultrassonografia/métodos , Feminino , Gases , Hospitais Pediátricos , Humanos , Incidência , Achados Incidentais , Lactente , Recém-Nascido , Masculino , Estudos Retrospectivos
18.
Health Promot Int ; 35(5): 1037-1051, 2020 Oct 01.
Artigo em Inglês | MEDLINE | ID: mdl-31557281

RESUMO

Although men's health promotion efforts have attracted programmatic and evaluative research, conspicuously absent are gendered insights to men's health literacy. The current scoping review article shares the findings drawn from 12 published articles addressing men's health literacy in a range of health and illness contexts. Evident was consensus that approaches tailored to men's everyday language and delivered in familiar community-based spaces were central to advancing men's health literacy, and, by extension, the effectiveness of men's health promotion programs. However, most men's health literacy studies focussed on medical knowledge of disease contexts including prostate and colon cancers, while diversity was evident regards conceptual frameworks and/or methods and measures for evaluating men's health literacy. Despite evidence that low levels of health literacy fuel stigma and men's reticence for health help-seeking, and that tailoring programs to health literacy levels is requisite to effective men's health promotion efforts, the field of men's health literacy remains underdeveloped. Based on the scoping review findings, recommendations for future research include integrating men's health literacy research as a needs analysis to more effectively design and evaluate targeted men's health promotion programs.


Assuntos
Letramento em Saúde , Promoção da Saúde , Nível de Saúde , Humanos , Masculino , Saúde do Homem
19.
J Am Pharm Assoc (2003) ; 60(5): e76-e80, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32229089

RESUMO

OBJECTIVES: This case series was designed to educate and inform health care professionals on the importance of providing adequate education on injectable antidiabetic agents and highlighting common medication errors related to diabetes care seen in ambulatory practice. The discussion following case descriptions will attempt to characterize patients who may be at high risk for these errors and identify ways to reduce the potential for error. CASE SUMMARY: In a diabetes care clinic, 4 cases were identified in which the patient experienced an escalation of insulin or other injectable antidiabetic medication doses with no improvement in glycemic control. Two of the cases involved failure to remove an inner needle cap because of a poor understanding of pen use. One case was attributed to switching formulations without providing proper education for an adult patient with a learning impairment, and the other was attributed to suboptimal absorption of insulin doses from lipohypertrophy. Three of the 4 cases resulted in multiple instances of hypoglycemia, and all 4 patients exhibited markedly improved glycemic control once the injection error was corrected. The clinic pharmacist played an essential role in identifying and correcting administration errors within an interdisciplinary team. PRACTICE IMPLICATIONS: Based on the observations from the 4 cases, clinicians should be prompted to review antidiabetic medication injection techniques before initiation and periodically thereafter with their patients. Factors that should prompt further education include low health literacy, language barrier, initiation of medication by another provider, switch of medication product or formulation, obvious discrepancies between refill history and patient's self-reported adherence, observed lipohypertrophy, and escalation of doses without any improvement in glycemic control. A referral to the clinic pharmacist should be considered to provide more detailed education for these patients.


Assuntos
Diabetes Mellitus , Hipoglicemia , Adulto , Diabetes Mellitus/tratamento farmacológico , Humanos , Hipoglicemiantes/uso terapêutico , Insulina , Erros de Medicação/prevenção & controle
20.
Langmuir ; 35(5): 1864-1871, 2019 02 05.
Artigo em Inglês | MEDLINE | ID: mdl-30119608

RESUMO

We report the synthesis of a zwitterionic carboxybetaine disulfide cross-linker (CBX-SS) and biodegradable poly(carboxybetaine) (PCB) hydrogels and nanocages (NCs) made using this cross-linker. The structure of CBX-SS combines zwitterionic carboxybetaine to confer nonfouling properties and a disulfide linkage to facilitate degradation. The physical, mechanical, and fouling characteristics of PCB hydrogels cross-linked with CBX-SS were investigated. Then, the degradation characteristics of CBX-SS-cross-linked hydrogels were evaluated through their weight loss and release of an encapsulated protein in a reducing environment. Furthermore, CBX-SS was applied to prepare degradable PCB NCs. Results show that encapsulating the highly immunogenic enzyme uricase in degradable PCB NCs eliminates or prevents an in vivo immune response to both the protein and polymer.

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