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1.
Chem Biodivers ; 20(10): e202301207, 2023 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-37688779

RESUMO

Plants from Salacia genus are used in traditional medicine for a wide range of diseases. Previous studies reported bioactive pentacyclic triterpenoids from S. elliptica leaves and branches. In this study, the novel pentacyclic triterpenoid 7α,15α-dihydroxyfriedelan-3-one (1) was obtained from the roots of Salacia elliptica, along with seven known compounds: friedelan-3-one (2), friedelan-3ß-ol (3), friedelan-1,3-dione (4), friedelan-3,15-dione (5), 15α-hydroxyfriedelan-3-one (6), 15α,26-dihydroxyfriedelan-3-one (7), and 26-hydroxyfriedelan-3,15-dione (8). Additionally, one steroid, spinasterol (9), was also identified. The chemical structures of all compounds were established through 1 H and 13 C-NMR. Compound 1 was analysed by additional 2D experiments (HMBC, HSQC, COSY, and NOESY) for complete elucidation. Furthermore, the cytotoxicity of compounds 2, 3, 6, 7 and 8 against the A549 lung cancer cells model was evaluated. The flow cytometry analysis revealed a significant cytotoxic activity similar to that exhibited by the triterpenoid lupeol. Additionally, compounds 2, 3, 6, and 7 were tested for in vitro antifungal activity against Candida, Cryptococcus and Sporothrix strains. However, all compounds showed no activity at the tested concentrations.

2.
Molecules ; 27(3)2022 Jan 31.
Artigo em Inglês | MEDLINE | ID: mdl-35164224

RESUMO

The Celastraceae family comprises about 96 genera and more than 1.350 species, occurring mainly in tropical and subtropical regions of the world. The species of this family stand out as important plant sources of triterpenes, both in terms of abundance and structural diversity. Triterpenoids found in Celastraceae species display mainly lupane, ursane, oleanane, and friedelane skeletons, exhibiting a wide range of biological activities such as antiviral, antimicrobial, analgesic, anti-inflammatory, and cytotoxic against various tumor cell lines. This review aimed to document all triterpenes isolated from different botanical parts of species of the Celastraceae family covering 2001 to 2021. Furthermore, a compilation of their 13C-NMR data was carried out to help characterize compounds in future investigations. A total of 504 pentacyclic triterpenes were compiled and distinguished as 29 aromatic, 50 dimers, 103 friedelanes, 89 lupanes, 102 oleananes, 22 quinonemethides, 88 ursanes and 21 classified as others.


Assuntos
Anti-Infecciosos/farmacologia , Anti-Inflamatórios/farmacologia , Antineoplásicos/farmacologia , Celastraceae/química , Triterpenos Pentacíclicos/farmacologia , Animais , Humanos
3.
Behav Ther ; 52(5): 1171-1187, 2021 09.
Artigo em Inglês | MEDLINE | ID: mdl-34452671

RESUMO

Despite recent advances in the treatment of early child social anxiety, the broad accessibility of brick-and-mortar services has been limited by traditional barriers to care, and more recently by new obstacles related to efforts to slow the spread of COVID-19. The present waitlist-controlled trial examined the preliminary efficacy of a family-based behavioral parenting intervention (i.e., the iCALM Telehealth Program) that draws on Parent-Child Interaction Therapy and videoconferencing to remotely deliver clinician-led care for anxiety in early childhood. Young children (3-8 years) with a diagnosis of social anxiety disorder (N = 40; 65% from ethnic/racial minority backgrounds) were randomly assigned to iCALM or waitlist. Intent-to-treat analyses found that at post, independent evaluators classified roughly half of the iCALM-treated children, but only 6% of waitlist children, as "Responders" (Wald test = 4.51; p = .03). By Post, iCALM led to significantly greater reductions than waitlist in child anxiety symptoms, fear, discomfort, and anxiety-related social impairment, and also led to greater improvements in child soothability. By 6-month follow-up, the percentage of iCALM-treated children classified as "Responders" rose to roughly 60%. Exploratory moderation tests found iCALM was particularly effective in reducing life impairments and parental distress among families presenting with higher, relative to lower, levels of baseline parental accommodation. The present findings add to a growing body of research supporting the promise of technology-based strategies for broadening the portfolio of options for delivering clinician-led mental health services.


Assuntos
COVID-19 , Telemedicina , Ansiedade/terapia , Pré-Escolar , Medo , Humanos , Internet , SARS-CoV-2
4.
J Consult Clin Psychol ; 87(8): 720-733, 2019 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-31294589

RESUMO

OBJECTIVE: Very few controlled trials have evaluated targeted treatment methods for childhood selective mutism (SM); the availability of evidence-based services remains limited. This study is the first controlled trial to evaluate an intensive group behavioral treatment (IGBT) for children with SM. METHOD: Twenty-nine children with SM (5-9 years; 76% female; 35% ethnic minority) were randomized to immediate SM 5-day IGBT or to a 4-week waitlist with psychoeducational resources (WLP), and were assessed at Week 4 and again 8 weeks into the following school year. RESULTS: IGBT was associated with high satisfaction and low perceived barriers to treatment participation. At Week 4, 50% of the immediate IGBT condition and 0% of the WLP condition were classified as "clinical responders." Further, Time × Condition interactions were significant for social anxiety severity, verbal behavior in social situations, and global functioning (but not for SM severity, verbal behavior in home settings, or overall anxiety). School-year follow-up assessments revealed significant improvements across all outcomes. Eight weeks into the following school year, 46% of IGBT-treated children were free of an SM diagnosis. In addition, teachers in the post-IGBT school year rated less school impairment and more classroom verbal behavior relative to teachers in the pre-IGBT school year. CONCLUSIONS: Findings provide the first empirical support for the efficacy and acceptability of IGBT for SM. Further study is needed to examine mechanisms of IGBT response, and other effective SM treatment methods, in order to clarify which treatment formats work best for which affected children. (PsycINFO Database Record (c) 2019 APA, all rights reserved).


Assuntos
Terapia Comportamental/métodos , Mutismo/terapia , Psicoterapia de Grupo/métodos , Criança , Pré-Escolar , Etnicidade , Feminino , Humanos , Masculino , Grupos Minoritários , Mutismo/psicologia , Resultado do Tratamento
5.
Behav Ther ; 49(2): 249-261, 2018 03.
Artigo em Inglês | MEDLINE | ID: mdl-29530263

RESUMO

Anxiety disorders are collectively the most prevalent mental health problems affecting youth. To increase the reach of mental health care, recent years have seen increasing enthusiasm surrounding mobile platforms for expanding treatment delivery options. Apps developed in academia and supported in clinical trials are slow to reach the consumer marketplace. Meanwhile, proliferation of industry-developed apps on consumer marketplaces has been high. The present study analyzed content within mobile products prominently marketed toward consumers for anxiety in youth. Systematic inventory of the Google Play Store and Apple Store using keyword searches for child and adolescent anxiety yielded 121 apps, which were evaluated on the basis of their descriptive characteristics, mobile functionalities, and adherence to evidence-based treatment principles. Findings revealed that evidence-based treatment content within the sample is scant and few comprehensive anxiety self-management apps were identified. Advanced features that leverage the broader functionalities of smartphone capabilities (e.g., sensors, ecological momentary assessments) were rarely present. Findings underscore the need to increase the prominence and accessibility of quality child anxiety intervention products for consumers. Strategies for improving marketing of supported apps to better penetrate consumer markets are discussed.


Assuntos
Transtornos de Ansiedade/terapia , Aplicativos Móveis/normas , Smartphone , Telemedicina , Adolescente , Criança , Humanos , Smartphone/normas , Telemedicina/normas
6.
Depress Anxiety ; 34(9): 786-793, 2017 09.
Artigo em Inglês | MEDLINE | ID: mdl-28661053

RESUMO

BACKGROUND: Social networking services (SNS) have rapidly become a central platform for adolescents' social interactions and media consumption patterns. The present study examined a representative sample of publicly accessible content related to deliberate self-injurious cutting across three SNS platforms: Twitter, Tumblr, and Instagram. METHODS: Data collection simulated searches for publicly available deliberate self-injury content on Twitter, Tumblr, and Instagram. Over a six-month period at randomly generated time points, data were obtained by searching "#cutting" on each SNS platform and collecting the first 10 posts generated. Independent evaluators coded posts for presence of the following: (a) graphic content, (b) negative self-evaluations, (c) references to mental health terms, (d) discouragement of deliberate self-injury, and (e) recovery-oriented resources. Differences across platforms were examined. RESULTS: Data collection yielded a sample of 1,155 public posts (770 of which were related to mental health). Roughly 60% of sampled posts depicted graphic content, almost half included negative self-evaluations, only 9.5% discouraged self-injury, and <1% included formal recovery resources. Instagram posts displayed the greatest proportion of graphic content and negative self-evaluations, whereas Twitter exhibited the smallest proportion of each. CONCLUSIONS: Findings characterize the graphic nature of online SNS deliberate self-injury content and the relative absence of SNS-posted resources for populations seeking out deliberate self-injurious cutting content. Mental health professionals must recognize the rapidly changing landscape of adolescent media consumption, influences, and social interaction as they may pertain to self-harm patterns.


Assuntos
Comportamento Autodestrutivo , Mídias Sociais , Rede Social , Humanos , Mídias Sociais/estatística & dados numéricos
7.
J Consult Clin Psychol ; 85(9): 909-917, 2017 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-28650194

RESUMO

OBJECTIVE: Remote technologies are increasingly being leveraged to expand the reach of supported care, but applications to early child-behavior problems have been limited. This is the first controlled trial examining video-teleconferencing to remotely deliver behavioral parent training to the home setting with a live therapist. METHOD: Racially/ethnically diverse children ages 3-5 years with disruptive behavior disorders, and their caregiver(s), using webcams and parent-worn Bluetooth earpieces, participated in a randomized trial comparing Internet-delivered parent-child interaction therapy (I-PCIT) versus standard clinic-based PCIT (N = 40). Major assessments were conducted at baseline, midtreatment, posttreatment, and 6-month follow-up. Linear regressions and hierarchical linear modeling using maximum-likelihood estimation were used to analyze treatment satisfaction, diagnoses, symptoms, functioning, and burden to parents across conditions. RESULTS: Intent-to-treat analyses found 70% and 55% of children treated with I-PCIT and clinic-based PCIT, respectively, showed "treatment response" after treatment, and 55% and 40% of children treated with I-PCIT and clinic-based PCIT, respectively, continued to show "treatment response" at 6-month follow-up. Both treatments had significant effects on children's symptoms and burden to parents, and many effects were very large in magnitude. Most outcomes were comparable across conditions, except that the rate of posttreatment "excellent response" was significantly higher in I-PCIT than in clinic-based PCIT, and I-PCIT was associated with significantly fewer parent-perceived barriers to treatment than clinic-based PCIT. Both treatments were associated with positive engagement, treatment retention, and very high treatment satisfaction. CONCLUSION: Findings build on the small but growing literature supporting the promising role of new technologies for expanding the delivery of behavioral parent training. (PsycINFO Database Record


Assuntos
Terapia Comportamental/métodos , Transtorno da Conduta/terapia , Educação não Profissionalizante/métodos , Relações Pais-Filho , Telemedicina/métodos , Adulto , Pré-Escolar , Feminino , Humanos , Internet , Masculino
8.
J Consult Clin Psychol ; 85(2): 178-186, 2017 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-27869451

RESUMO

OBJECTIVE: Despite advances in supported treatments for early onset obsessive-compulsive disorder (OCD), progress has been constrained by regionally limited expertise in pediatric OCD. Videoteleconferencing (VTC) methods have proved useful for extending the reach of services for older individuals, but no randomized clinical trials (RCTs) have evaluated VTC for treating early onset OCD. METHOD: RCT comparing VTC-delivered family based cognitive-behavioral therapy (FB-CBT) versus clinic-based FB-CBT in the treatment of children ages 4-8 with OCD (N = 22). Pretreatment, posttreatment, and 6-month follow-up assessments included mother-/therapist-reports and independent evaluations masked to treatment condition. Primary analyses focused on treatment retention, engagement and satisfaction. Hierarchical linear modeling preliminarily evaluated the effects of time, treatment condition, and their interactions. "Excellent response" was defined as a 1 or 2 on the Clinical Global Impressions-Improvement Scale. RESULTS: Treatment retention, engagement, alliance and satisfaction were high across conditions. Symptom trajectories and family accommodation across both conditions showed outcomes improving from baseline to posttreatment, and continuing through follow-up. At posttreatment, 72.7% of Internet cases and 60% of Clinic cases showed "excellent response," and at follow-up 80% of Internet cases and 66.7% of Clinic cases showed "excellent response." Significant condition differences were not found across outcomes. CONCLUSIONS: VTC methods may offer solutions to overcoming traditional barriers to care for early onset OCD by extending the reach of real-time expert services regardless of children's geographic proximity to quality care. (PsycINFO Database Record


Assuntos
Terapia Cognitivo-Comportamental/métodos , Terapia Familiar/métodos , Internet , Transtorno Obsessivo-Compulsivo/terapia , Telemedicina/métodos , Comunicação por Videoconferência , Criança , Pré-Escolar , Feminino , Seguimentos , Humanos , Masculino , Projetos Piloto , Resultado do Tratamento
9.
J Phys Chem B ; 118(21): 5730-9, 2014 May 29.
Artigo em Inglês | MEDLINE | ID: mdl-24820398

RESUMO

Methanol is a widely used solvent for chemical reactions and has solvation properties similar to those of water. However, the performance of continuum solvation models in this solvent has not been tested yet. In this report, we have investigated the performance of the SM8 and SMD models for pKa prediction of 26 carboxylic acids, 24 phenols, and 23 amines in methanol. The gas phase contribution was included at the X3LYP/TZVPP+diff//X3LYP/DZV+P(d) level. Using the proton exchange reaction with acetic acid, phenol, and ammonia as reference species leads to RMS error in the range of 1.4 to 3.6 pKa units. This finding suggests that the performance of the continuum models for methanol is similar to that found for aqueous solvent. Application of simple empirical correction through a linear equation leads to accurate pKa prediction, with uncertainty less than 0.8 units with the SM8 method. Testing with the less expensive PBE1PBE/6-311+G** method results in a slight improvement in the results.

10.
Depress Anxiety ; 31(7): 542-50, 2014 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-24865569

RESUMO

BACKGROUND: Following the Boston Marathon attack, the extraordinary interagency manhunt and shelter-in-place made for a truly unprecedented experience for area families. Although research on Boston youth has found robust associations between manhunt-related experiences and post-attack functioning, such work does little to identify the specific needs of a particularly vulnerable population--i.e., children with a relative who participated in the manhunt. Understanding the adjustment of these youth is critical for informing clinical efforts. METHODS: Survey of Boston-area parents/caretakers (N = 460) reporting on their child's attack/manhunt-related experiences, as well as psychosocial functioning in the first six post-attack months; analyses compared youth with and without a relative in law enforcement or the armed services who participated in the manhunt. RESULTS: The proportion of youth with likely PTSD was 5.7 times higher among youth with relatives in the manhunt than among youth without. After accounting for child demographics, blast exposure, and children's own exposure to manhunt events (e.g., hearing/seeing gunfire/explosions, having officers enter/search home), having a relative in the manhunt significantly predicted child PTSD symptoms, emotional symptoms, and hyperactivity/inattention. Fear during the manhunt that a loved one could be hurt mediated relationships between having a relative in the manhunt and clinical outcomes; living within the zone of greatest manhunt activity did not moderate observed relationships. CONCLUSIONS: Children with relatives called upon to participate in the unprecedented interagency manhunt following the Boston Marathon attack carried a particularly heavy mental health burden. Continued research is needed to clarify the clinical needs of youth with relatives in high-risk occupations.


Assuntos
Família/psicologia , Transtornos de Estresse Pós-Traumáticos/etiologia , Terrorismo/psicologia , Adolescente , Adulto , Boston/epidemiologia , Criança , Pré-Escolar , Feminino , História do Século XXI , Humanos , Masculino , Militares/psicologia , Polícia , Transtornos de Estresse Pós-Traumáticos/epidemiologia , Terrorismo/história , Adulto Jovem
11.
J Phys Chem B ; 117(17): 5129-35, 2013 May 02.
Artigo em Inglês | MEDLINE | ID: mdl-23570440

RESUMO

Absolute solvation free energy of the lithium cation in methanol was calculated by the cluster-continuum quasichemical theory of solvation. Clusters with up to five methanol molecules were investigated using X3LYP, MP2, and MP4 methods with DZVP, 6-311+G(2df,2p), TZVPP+diff, and QZVPP+diff basis sets and including the cluster solvation through the PCM and SMD continuum models. Our calculations have determined a value of -118.1 kcal mol(-1) for the solvation free energy of the lithium, in close agreement with a value of -116.6 kcal mol(-1) consistent with the TATB assumption. Using data of solvation and transfer free energy of a pair of ions, electrode potentials and pKa, we have obtained the solvation free energy of 25 ions in methanol. Our analysis leads to a value of -253.6 kcal mol(-1) for the solvation free energy of the proton, which can be compared with the value of -263.5 kcal mol(-1) obtained by Kelly et al. using the cluster pair approximation. Considering that this difference is due to the methanol surface potential, we have estimated that it corresponds to -0.429 V.

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