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1.
Ann Palliat Med ; 2024 Apr 07.
Artigo em Inglês | MEDLINE | ID: mdl-38600818

RESUMO

BACKGROUND: Behavioral health (BH) comorbidities in hospice patients are widespread and impact important outcomes, including symptom burden, quality of life, and caregiver wellbeing. However, evidencebased BH interventions tailored for the hospice setting remain understudied. METHODS: We conducted a scoping review with the objective of mapping studies of interventions for BH comorbidities in the hospice setting. We included empirical studies among hospice patients of interventions with BH outcomes. We abstracted data on study design, intervention type, and patient characteristics. RESULTS: Our search generated 7,672 unique results, of which 37 were ultimately included in our analysis. Studies represented 16 regions, with the United Kingdom (n=13) most represented. The most frequent intervention type was complementary and alternative interventions (n=13), followed by psychotherapeutic interventions (n=12). Most of the studies were either pilot or feasibility investigations. Fifteen studies employed a randomized controlled trial design. The most frequently utilized measurement tools for BH outcomes included the Hospital Anxiety and Depression Scale and the Edmonton Symptom Assessment Scale. Seventeen studies demonstrated statistically significant results in a BH outcome measure. BH conditions prevalent among hospice patients that were the focus of intervention efforts included depression symptoms, anxiety symptoms, and general psychological distress. No study focused on trauma-related disorders or substance use disorders. CONCLUSIONS: This scoping review reveals a concerning gap in research regarding evidence-based BH interventions in hospice settings, especially in the U.S. Despite extensive utilization of hospice care services and the high prevalence of BH conditions among hospice patients, randomized controlled trials focused on improving BH outcomes remain scant. The current BH practices, like the widespread use of benzodiazepines and antipsychotics, may not be rooted in robust evidence, underscoring an urgent need for investment in hospice research infrastructure and tailored clinical trials to test behavioral approaches to mitigate mental health outcomes at the end of life.

2.
Pharmaceutics ; 16(4)2024 Apr 15.
Artigo em Inglês | MEDLINE | ID: mdl-38675206

RESUMO

The aim of this study was to assess the impact of physiological factors, namely tear fluid and lysozyme enzyme, as well as surfactant polysorbate, on the release profile from solid lipid microparticles (SLM), in the form of dispersion intended for ocular application. Indomethacin (Ind) was used as a model drug substance and a release study was performed by applying the dialysis bag method. Conducting release studies taking into account physiological factors is expected to improve development and screening studies, as well as support the regulatory assessment of this multi-compartment lipid dosage form. The effect of the lysozyme was directly related to its effect on lipid microparticles, as it occurred only in their presence (no effect on the solubility of Ind). Polysorbate also turned out to be an important factor interacting with the SLM surface, which determined the release of Ind from SLM. However, in study models without tear fluid or lysozyme, the release of Ind did not exceed 60% within 96 h. Ultimately, only the simultaneous application of artificial tear fluid, lysozyme, and polysorbate allowed for the release of 100% of Ind through the SLM dispersion. The examination of the residues after the release studies indicated the possibility of releasing 100% of Ind from SLM without complete degradation of the microparticles' matrix. The incubation of SLM with tear fluid confirmed a similar influence of physiological factors contained in tear fluid on the surface structure of SLM as that observed during the in vitro studies.

3.
PLoS Biol ; 21(11): e3002343, 2023 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-38029342

RESUMO

For social interaction to be successful, two conditions must be met: the motivation to initiate it and the ability to maintain it. This study uses both optogenetic and chemogenetic approaches to reveal the specific neural pathways that selectively influence those two social interaction components.


Assuntos
Optogenética , Interação Social , Cognição , Motivação , Neurônios/fisiologia , Vias Neurais/fisiologia
4.
Opt Express ; 31(18): 28850-28858, 2023 Aug 28.
Artigo em Inglês | MEDLINE | ID: mdl-37710695

RESUMO

The near-infrared emission in fabricated low-phonon energy, gallo-germanate glass, and double-core optical fiber has been investigated. Broadband amplified spontaneous emission (ASE) was obtained in optical fiber with cores doped with: 1st - 0.2Er2O3 and 2nd - 0.5Yb2O3/0.4Tm2O3/0.05Ho2O3 as a result of the superposition of emission bands from both cores corresponding to the Er3+:4I13/2→4I15/2 (1st core) and Tm3+:3F4 → 3H6/Ho3+:5I7 → 5I8 (2nd core) transitions. The effect of fiber length and pump wavelength on the near-infrared amplified spontaneous emission (ASE) properties has been analyzed for 1 m and 5 m optical fiber. The widest emission bandwidth (355 nm - 3 dB level) was obtained for a 5 m length optical fiber pumped by a 940 nm laser.

5.
Int J Neuropsychopharmacol ; 26(10): 747-760, 2023 10 19.
Artigo em Inglês | MEDLINE | ID: mdl-37531283

RESUMO

BACKGROUND: Increased levels of occupational stress among health professionals during the COVID-19 pandemic have been documented. Few studies have examined the effects of the pandemic on mental health professionals despite the heightened demand for their services. METHOD: A multilingual, longitudinal, global survey was conducted at 3 time points during the pandemic among members of the World Health Organization's Global Clinical Practice Network. A total of 786 Global Clinical Practice Network members from 86 countries responded to surveys assessing occupational distress, well-being, and posttraumatic stress symptoms. RESULTS: On average, respondents' well-being deteriorated across time while their posttraumatic stress symptoms showed a modest improvement. Linear growth models indicated that being female, being younger, providing face-to-face health services to patients with COVID-19, having been a target of COVID-related violence, and living in a low- or middle-income country or a country with a higher COVID-19 death rate conveyed greater risk for poor well-being and higher level of stress symptoms over time. Growth mixed modeling identified trajectories of occupational well-being and stress symptoms. Most mental health professions demonstrated no impact to well-being; maintained moderate, nonclinical levels of stress symptoms; or showed improvements after an initial period of difficulty. However, some participant groups exhibited deteriorating well-being approaching the clinical threshold (25.8%) and persistently high and clinically significant levels of posttraumatic stress symptoms (19.6%) over time. CONCLUSIONS: This study indicates that although most mental health professionals exhibited stable, positive well-being and low stress symptoms during the pandemic, a substantial minority of an already burdened global mental health workforce experienced persistently poor or deteriorating psychological status over the course of the pandemic.


Assuntos
COVID-19 , Humanos , Feminino , Masculino , COVID-19/epidemiologia , Pandemias , SARS-CoV-2 , Saúde Mental , Depressão/psicologia
6.
J Pain Symptom Manage ; 66(1): e129-e151, 2023 07.
Artigo em Inglês | MEDLINE | ID: mdl-37003308

RESUMO

BACKGROUND: Although psychiatric comorbidities are common among individuals at end of life, their impact on outcomes is poorly understood. METHODS: We conducted a systematic literature review of six databases following preferred reporting items for systematic reviews and meta-analyses guidelines and aimed at assessing the relationship between psychiatric comorbidities and outcomes in palliative and end-of-life care. Six databases were included in our search. This review is registered on PROSPERO (CRD42022335922). RESULTS: Our search generated 7472 unique records. Eighty-eight full texts were reviewed for eligibility and 43 studies were included in the review. Clinically, psychiatric comorbidity was associated with poor quality of life, increased physical symptom burden, and low function. The impact of psychiatric comorbidity on health utilization varied, though many studies suggested that psychiatric comorbidity increased utilization of palliative care services. Quality of evidence was limited by lack of consistent approach to confounding variables as well as heterogeneity of the included studies. CONCLUSION: Psychiatric comorbidity is associated with significant differences in care utilization and clinical outcome among patients at end of life. In particular, patients with psychiatric comorbidity and serious illness are at high risk of poor quality of life and high symptom burden. Our finding that psychiatric comorbidity is associated with increased utilization of palliative care likely reflects the complexity and clinical needs of patients with serious illness and mental health needs. These data suggest that greater integration of mental health and palliative care services may enhance quality-of-life among patients at end of life.


Assuntos
Cuidados Paliativos na Terminalidade da Vida , Assistência Terminal , Humanos , Qualidade de Vida , Comorbidade , Morte
7.
Sensors (Basel) ; 23(5)2023 Feb 27.
Artigo em Inglês | MEDLINE | ID: mdl-36904832

RESUMO

This paper contains the design of active optical lenses used for the detection of arc flashing emissions. The phenomenon of an arc flashing emission and its characteristics were contemplated. Methods of preventing these emissions in electric power systems were discussed as well. The article also includes a comparison of commercially available detectors. An analysis of the material properties of fluorescent optical fiber UV-VIS-detecting sensors constitutes a major part of the paper. The main purpose of the work was to make an active lens using photoluminescent materials, which can convert ultraviolet radiation into visible light. As part of the work, active lenses with materials such as Poly(methyl 2-methylpropenoate) (PMMA) and phosphate glass doped with lanthanides, such as terbium (Tb3+) and europium (Eu3+) ions, were analyzed. These lenses were used to make optical sensors, which were supported by commercially available sensors in their construction.

8.
Materials (Basel) ; 16(4)2023 Feb 14.
Artigo em Inglês | MEDLINE | ID: mdl-36837218

RESUMO

Nanophosphors are widely used, especially in biological applications in the first and second biological windows. Currently, nanophosphors doped with lanthanide ions (Ln3+) are attracting much attention. However, doping the matrix with lanthanide ions is associated with a narrow luminescence bandwidth. This paper describes the structural and luminescence properties of co-doped LaPO4 nanophosphors, fabricated by the co-precipitation method. X-ray structural analysis, scanning electron microscope measurements with EDS analysis, and luminescence measurements (excitation 395 nm) of LaPO4:Eu3+/Nd3+ and LaPO4:Eu3+/Nd3+/Yb3+ nanophosphors were made and energy transfer between rare-earth ions was investigated. Tests performed confirmed the crystal structure of the produced phosphors and deposition of rare-earth ions in the structure of LaPO4 nanocrystals. In the range of the first biological window (650-950 nm), strong luminescence bands at the wavelengths of 687 nm and 698 nm (5D0 → 7F4:Eu3+) and 867 nm, 873 nm, 889 nm, 896 nm, and 907 nm (4F3/2 → 4I9/2:Nd3+) were observed. At 980 nm, 991 nm, 1033 nm (2F5/2 → 2F7/2:Yb3+) and 1048 nm, 1060 nm, 1073 nm, and 1080 nm (4F3/2 → 4I9/2:Nd3+), strong bands of luminescence were visible in the 950 nm-1100 nm range, demonstrating that energy transfer took place.

9.
J Trauma Stress ; 36(1): 5-16, 2023 02.
Artigo em Inglês | MEDLINE | ID: mdl-36300605

RESUMO

Ensuring effective mental health and psychosocial support is crucial following exposure to a potentially traumatic event and can have long-term consequences for individuals, families, and communities. Psychological first aid (PFA) has become a widespread intervention of choice following exposure to conflict or disaster; however, its impact is unknown. This systematic review assessed PFA efficacy in improving the mental health and psychosocial well-being of individuals exposed to potentially traumatic events. We searched PubMed, PsycINFO, PTSDpubs, and EMBASE for peer reviewed studies evaluating programmatic outcomes of PFA, or an adapted intervention, published in English before March 9, 2021. Studies evaluating training outcomes or program feasibility were excluded. The primary outcomes were reported measures of participant mental health and psychosocial well-being, with narrative results presented for each. The Cochrane Risk of Bias tool was applied. Of 9,048 potentially eligible citations, 12 studies with a total of 1,437 participants met the inclusion criteria. Only one study was a randomized controlled trial. The findings from all studies suggest a positive impact of PFA, with most reporting reduced symptoms of anxiety, depression, posttraumatic stress, and distress, as well as improved ratings of mood, the experience of safety, connectedness, and a sense of control, among youth and adults. Risk of bias was generally high. Inconsistent intervention components, insufficient evaluation methodologies, and a high risk of bias within the reviewed studies present challenges in assessing PFA efficacy, and an imbalance between popular support for PFA and scant evidence of outcome data exists. Further research is needed to justify the proliferation of PFA.


Assuntos
Desastres , Transtornos de Estresse Pós-Traumáticos , Adulto , Adolescente , Humanos , Saúde Mental , Transtornos de Estresse Pós-Traumáticos/psicologia , Primeiros Socorros Psicológicos , Ansiedade , Ensaios Clínicos Controlados Aleatórios como Assunto
10.
Materials (Basel) ; 15(15)2022 Jul 28.
Artigo em Inglês | MEDLINE | ID: mdl-35955165

RESUMO

The effect of BaF2, MgF2, and AlF3 on the structural and luminescent properties of gallo-germanate glass (BGG) doped with erbium ions was investigated. A detailed analysis of infrared and Raman spectra shows that the local environment of erbium ions in the glass was influenced mainly by [GeO]4 and [GeO]6 units. Moreover, the highest number of non-bridging oxygens was found in the network of the BGG glass modified by MgF2. The 27Al MAS NMR spectrum of BGG glass with AlF3 suggests the presence of aluminum in tetra-, penta-, and octahedral coordination geometry. Therefore, the probability of the 4I13/2→4I15/2 transition of Er3+ ions increases in the BGG + MgF2 glass system. On the other hand, the luminescence spectra showed that the fluoride modifiers lead to an enhancement in the emission of each analyzed transition when different excitation sources are employed (808 nm and 980 nm). The analysis of energy transfer mechanisms shows that the fluoride compounds promote the emission intensity in different channels. These results represent a strong base for designing glasses with unique luminescent properties.

11.
Materials (Basel) ; 15(11)2022 May 26.
Artigo em Inglês | MEDLINE | ID: mdl-35683100

RESUMO

Glass-ceramic is semi-novel material with many applications, but it is still problematic in obtaining fibers. This paper aims to develop a new glass-ceramic material that is a compromise between crystallization, thermal stability, and optical properties required for optical fiber technology. This compromise is made possible by an alternative method with a controlled crystallization process and a suitable choice of the chemical composition of the core material. In this way, the annealing process is eliminated, and the core material adopts a glass-ceramic character with high transparency directly in the drawing process. In the experiment, low phonon antimony-germanate-silicate glass (SGS) doped with Eu3+ ions and different concentrations of P2O5 were fabricated. The glass material crystallized during the cooling process under conditions similar to the drawing processes'. Thermal stability (DSC), X-ray photo analysis (XRD), and spectroscopic were measured. Eu3+ ions were used as spectral probes to determine the effect of P2O5 on the asymmetry ratio for the selected transitions (5D0 → 7F1 and 5D0 → 7F2). From the measurements, it was observed that the material produced exhibited amorphous or glass-ceramic properties, strongly dependent on the nucleator concentration. In addition, the conducted study confirmed that europium ions co-form the EuPO4 structure during the cooling process from 730 °C to room temperature. Moreover, the asymmetry ratio was changed from over 4 to under 1. The result obtained confirms that the developed material has properties typical of transparent glass-ceramic while maintaining high thermal stability, which will enable the fabrication of fibers with the glass-ceramic core.

12.
J Psychiatr Res ; 148: 188-196, 2022 04.
Artigo em Inglês | MEDLINE | ID: mdl-35131587

RESUMO

BACKGROUND: COVID-19 has profoundly affected the work of mental health professionals with many transitioning to telehealth to comply with public health measures. This large international study examined the impact of the pandemic on mental health clinicians' telehealth use. METHODS: This survey study was conducted with mental health professionals, primarily psychiatrists and psychologists, registered with WHO's Global Clinical Practice Network (GCPN). 1206 clinicians from 100 countries completed the telehealth section of the online survey in one of six languages between June 4 and July 7, 2020. Participants were asked about their use, training (i.e., aspects of telehealth addressed), perceptions, and concerns. OUTCOMES: Since the pandemic onset, 1092 (90.5%) clinicians reported to have started or increased their telehealth services. Telephone and videoconferencing were the most common modalities. 592 (49.1%) participants indicated that they had not received any training. Clinicians with no training or training that only addressed a single aspect of telehealth practice were more likely to perceive their services as somewhat ineffective than those with training that addressed two or more aspects. Most clinicians indicated positive perceptions of effectiveness and patient satisfaction. Quality of care compared to in-person services and technical issues were the most common concerns. Findings varied by WHO region, country income level, and profession. INTERPRETATION: Findings suggest a global practice change with providers perceiving telehealth as a viable option for mental health care. Increasing local training opportunities and efforts to address clinical and technological concerns is important for meeting ongoing demands.


Assuntos
COVID-19 , Telemedicina , Pessoal de Saúde , Humanos , Saúde Mental , Pandemias
13.
Psychiatr Serv ; 73(4): 439-446, 2022 04 01.
Artigo em Inglês | MEDLINE | ID: mdl-34346736

RESUMO

OBJECTIVE: Mental Health First Aid (MHFA) is a globally disseminated course that trains members of the public to recognize and respond to mental health issues in their communities. Although substantial evidence suggests that MHFA training is associated with positive changes in knowledge, attitudes, and behavioral intent, little is known about how MHFA trainee-delivered aid supports mental health needs. This systematic review sought to summarize the extant research evaluating MHFA trainees' helping behaviors and the impacts of these behaviors on people experiencing a mental health problem (i.e., recipients). METHODS: Electronic databases were searched for MHFA evaluations published before or on March 9, 2021. Studies that evaluated at least one outcome related to trainee helping behavior or recipient mental health were included in the synthesis. Outcomes were organized into three categories: trainee use of MHFA skills, helpfulness of trainees' actions, and recipients' mental health. Only studies that compared pre- and posttraining outcomes, included a control group, and directly evaluated MHFA were used to assess its efficacy. RESULTS: The search identified 31 studies, nine of which met criteria to assess MHFA efficacy. The findings of the nine studies indicated that MHFA had mixed effects on trainees using the skills taught in the course and no effects on the helpfulness of trainees' actions or on recipient mental health. CONCLUSIONS: The findings indicate that there is insufficient current evidence that MHFA improves the helping behaviors of trainees or the mental health of those receiving helping behaviors. They highlight a crucial research gap that should be prioritized as MHFA continues to grow in popularity.


Assuntos
Primeiros Socorros , Transtornos Mentais , Grupos Controle , Bases de Dados Factuais , Humanos , Transtornos Mentais/terapia , Saúde Mental , Avaliação de Resultados em Cuidados de Saúde
14.
Curr Biol ; 31(11): 2347-2358.e6, 2021 06 07.
Artigo em Inglês | MEDLINE | ID: mdl-33848461

RESUMO

Animals display a rich repertoire of defensive responses adequate to the threat proximity. In social species, these reactions can be additionally influenced by the behavior of fearful conspecifics. However, the majority of neuroscientific studies on socially triggered defensive responses focuses on one type of behavior, freezing. To study a broader range of socially triggered reactions and underlying mechanisms, we directly compared two experimental paradigms, mimicking occurrence of the imminent versus remote threat. Observation of a partner currently experiencing aversive stimulation evokes passive defensive responses in the observer rats. Similar interaction with a partner that has just undergone the aversive stimulation prompts animals to increase active exploration. Although the observers display behaviors similar to those of the aversively stimulated demonstrators, their reactions are not synchronized in time, suggesting that observers' responses are caused by the change in their affective state rather than mimicry. Using opsins targeted to behaviorally activated neurons, we tagged central amygdala (CeA) cells implicated in observers' responses to either imminent or remote threat and reactivated them during the exploration of a novel environment. The manipulation revealed that the two populations of CeA cells promote passive or active defensive responses, respectively. Further experiments confirmed that the two populations of cells at least partially differ in expression of molecular markers (protein kinase C-δ [PKC-δ] and corticotropin-releasing factor [CRF]) and connectivity patterns (receiving input from the basolateral amygdala or from the anterior insula). The results are consistent with the literature on single subjects' fear conditioning, suggesting that similar neuronal circuits control defensive responses in social and non-social contexts.


Assuntos
Complexo Nuclear Basolateral da Amígdala , Núcleo Central da Amígdala , Animais , Antígeno Carcinoembrionário , Hormônio Liberador da Corticotropina , Medo , Ratos
16.
Sci Rep ; 7: 44277, 2017 03 10.
Artigo em Inglês | MEDLINE | ID: mdl-28281674

RESUMO

Cationic amphiphilic drugs (CADs) comprise a wide variety of different substance classes such as antidepressants, antipsychotics, and antiarrhythmics. It is well recognized that CADs accumulate in certain intracellular compartments leading to specific morphological changes of cells. So far, no adequate technique exists allowing for ultrastructural analysis of CAD in intact cells. Azidobupramine, a recently described multifunctional antidepressant analogue, allows for the first time to perform high-resolution studies of CADs on distribution pattern and morphological changes in intact cells. We showed here that the intracellular distribution pattern of azidobupramine strongly depends on drug concentration and exposure time. The mitochondrial compartment (mDsRed) and the late endo-lysosomal compartment (CD63-GFP) were the preferred localization sites at low to intermediate concentrations (i.e. 1 µM, 5 µM). In contrast, the autophagosomal compartment (LC3-GFP) can only be reached at high concentrations (10 µM) and long exposure times (72 hrs). At the morphological level, LC3-clustering became only prominent at high concentrations (10 µM), while changes in CD63 pattern already occurred at intermediate concentrations (5 µM). To our knowledge, this is the first study that establishes a link between intracellular CAD distribution pattern and morphological changes. Therewith, our results allow for gaining deeper understanding of intracellular effects of CADs.


Assuntos
Antidepressivos Tricíclicos/metabolismo , Cátions/metabolismo , Espaço Intracelular/metabolismo , Preparações Farmacêuticas/metabolismo , Antidepressivos Tricíclicos/química , Antidepressivos Tricíclicos/farmacocinética , Autofagossomos/metabolismo , Cátions/química , Cátions/farmacocinética , Células HeLa , Humanos , Interações Hidrofóbicas e Hidrofílicas , Lisossomos/metabolismo , Mitocôndrias/metabolismo , Preparações Farmacêuticas/química
17.
Int J Mol Sci ; 16(6): 13217-58, 2015 Jun 10.
Artigo em Inglês | MEDLINE | ID: mdl-26068453

RESUMO

Although less pronounced, social, cognitive, and personality characteristics associated with autism spectrum disorders (ASD) may be present in people who do not meet ASD diagnostic criteria, especially in first-degree relatives of individuals with ASD. Research on these characteristics, referred to as broader autism phenotype (BAP), provides valuable data on potential expressions of autism-specific deficits in the context of family relations. This paper offers a review of research on BAP in siblings of individuals with ASD, focusing on reports regarding social, communication, and cognitive deficits, published from 1993 to 2014. The studies are divided into two groups based on participants' age: papers on preschool and older siblings of individuals with ASD; and publications on infants at risk for ASD. On the basis of this review, suggestions are offered for further research and its significance for our understanding of the genetic determinants of autism.


Assuntos
Transtorno do Espectro Autista/genética , Fenótipo , Irmãos , Transtorno do Espectro Autista/diagnóstico , Transtorno do Espectro Autista/epidemiologia , Criança , Pré-Escolar , Humanos , Lactente
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