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1.
BMC Geriatr ; 23(1): 338, 2023 05 31.
Artigo em Inglês | MEDLINE | ID: mdl-37259070

RESUMO

BACKGROUND: When there are safety concerns, healthcare professionals (HCPs) may disregard older adults' wishes to return or remain at home. A paradigm shift is needed for HCPs to move from labelling older adults as living at risk to helping them live with risk. The Living with Risk: Decision Support Tool (LwR:DST) was developed to support older adults and HCPs with difficult decision-making regarding living with risk. The study objectives were to: (1) validate, and (2) pilot-test the LwR:DST in hospital and community settings. METHODS: The study was conducted across Canada during the pandemic. The LwR:DST's content was validated with quantitative and qualitative data by: (1) 71 HCPs from hospital and community settings using the Delphi method, and (2) 17 older adults and caregivers using focus groups. HCPs provided feedback on the LwR:DST's content, format and instruction manual while older adults provided feedback on the LwR:DST's communication step. The revised LwR:DST was pilot-tested by 14 HCPs in one hospital and one community setting, and 17 older adults and caregivers described their experience of HCPs using this approach with them. Descriptive and thematic analysis were performed. RESULTS: The LwR:DST underwent two iterations incorporating qualitative and quantitative data provided by HCPs, older adults and caregivers. The quantitative Delphi method data validated the content and the process of the LwR:DST, while the qualitative data provided practical improvements. The pilot-testing results suggest that using the LwR:DST broadens HCPs' clinical thinking, structures their decision-making, improves their communication and increases their competence and comfort with risk assessment and management. Our findings also suggest that the LwR:DST improves older adults' healthcare experience by feeling heard, understood and involved. CONCLUSIONS: This revised LwR:DST should help HCPs systematically identify frail older adults' risks when they remain at or return home and find acceptable ways to mitigate these risks. The LwR:DST induces a paradigm shift by acknowledging that risks are inherent in everyday living and that risk-taking has positive and negative consequences. The challenges involved in integrating the LwR:DST into practice, i.e., when, how and with whom to use it, will be addressed in future research.


Assuntos
Sistemas de Apoio a Decisões Clínicas , Humanos , Idoso , Cuidadores , Pessoal de Saúde , Canadá , Grupos Focais , Pesquisa Qualitativa
2.
Ophthalmology ; 127(7): 963-976, 2020 07.
Artigo em Inglês | MEDLINE | ID: mdl-32107066

RESUMO

Improving or maintaining visual acuity is the main goal for the treatment of neovascular age-related macular degeneration (nAMD). Current nAMD standard of care dictates frequent intravitreal (IVT) anti-vascular endothelial growth factor (VEGF) injections, which places a substantial burden on patients, caregivers, and physicians. Brolucizumab, a newly developed anti-VEGF molecule for nAMD treatment, has demonstrated longer durability and improvement in visual and anatomic outcomes in clinical studies in a q12-week regimen, indicating its potential to reduce treatment burden as an important therapeutic tool in nAMD management. This review focuses on the development of brolucizumab and the preclinical and clinical studies evaluating its efficacy, tolerability, and safety. Brolucizumab (also known as "RTH258" and "ESBA1008") is a humanized, single-chain variable fragment (scFv) antibody with a molecular mass of approximately 26 kDa that inhibits VEGF-A. Preclinical studies show that brolucizumab readily penetrates the retina to reach the retinal pigment epithelium (RPE)/choroid with minimal subsequent systemic exposure. The safety, tolerability, and efficacy of a single IVT brolucizumab administration in patients with treatment-naïve nAMD were first demonstrated in the SEE Phase 1/2 study. The OSPREY Phase 2 study showed brolucizumab to be as efficacious as aflibercept in a q8-week regimen with regard to best-corrected visual acuity (BCVA) and brolucizumab achieving greater fluid resolution. Brolucizumab-treated patients in the OSPREY study were subsequently challenged with a q12-week dosing interval, and the outcomes provided key information for the study design and end points of the Phase 3 studies. In the HAWK and HARRIER Phase 3 studies, after 3 monthly loading injections, brolucizumab treatment regimen (q12-week or q8-week) was guided by individual disease activity assessment using functional and anatomic parameters (central subfield thickness [CST], intraretinal fluid [IRF], or subretinal fluid [SRF]) versus aflibercept (q8-week). Fewer brolucizumab 6-mg treated eyes had disease activity versus aflibercept, and anatomic outcome results at weeks 16 and 48 demonstrate brolucizumab as a potent drying agent. Moreover, of patients treated with 6 mg brolucizumab, 55.6% and 51.0% maintained a q12-week dosing interval immediately after the loading phase until week 48 in HAWK and HARRIER, respectively. These Phase 3 studies demonstrated that the brolucizumab q12-week regimen maintains efficacy and safety while reducing treatment burden associated with regular IVT injections for patients with nAMD.


Assuntos
Anticorpos Monoclonais Humanizados/administração & dosagem , Gerenciamento Clínico , Epitélio Pigmentado da Retina/patologia , Acuidade Visual , Degeneração Macular Exsudativa/tratamento farmacológico , Humanos , Injeções Intravítreas , Tomografia de Coerência Óptica , Degeneração Macular Exsudativa/diagnóstico
5.
Genome Med ; 16(1): 13, 2024 01 16.
Artigo em Inglês | MEDLINE | ID: mdl-38229148

RESUMO

BACKGROUND: Sudden unexpected death in children is a tragic event. Understanding the genetics of sudden death in the young (SDY) enables family counseling and cascade screening. The objective of this study was to characterize genetic variation in an SDY cohort using whole genome sequencing. METHODS: The SDY Case Registry is a National Institutes of Health/Centers for Disease Control and Prevention surveillance effort to discern the prevalence, causes, and risk factors for SDY. The SDY Case Registry prospectively collected clinical data and DNA biospecimens from SDY cases < 20 years of age. SDY cases were collected from medical examiner and coroner offices spanning 13 US jurisdictions from 2015 to 2019. The cohort included 211 children (median age 0.33 year; range 0-20 years), determined to have died suddenly and unexpectedly and from whom DNA biospecimens for DNA extractions and next-of-kin consent were ascertained. A control cohort consisted of 211 randomly sampled, sex- and ancestry-matched individuals from the 1000 Genomes Project. Genetic variation was evaluated in epilepsy, cardiomyopathy, and arrhythmia genes in the SDY and control cohorts. American College of Medical Genetics/Genomics guidelines were used to classify variants as pathogenic or likely pathogenic. Additionally, pathogenic and likely pathogenic genetic variation was identified using a Bayesian-based artificial intelligence (AI) tool. RESULTS: The SDY cohort was 43% European, 29% African, 3% Asian, 16% Hispanic, and 9% with mixed ancestries and 39% female. Six percent of the cohort was found to harbor a pathogenic or likely pathogenic genetic variant in an epilepsy, cardiomyopathy, or arrhythmia gene. The genomes of SDY cases, but not controls, were enriched for rare, potentially damaging variants in epilepsy, cardiomyopathy, and arrhythmia-related genes. A greater number of rare epilepsy genetic variants correlated with younger age at death. CONCLUSIONS: While damaging cardiomyopathy and arrhythmia genes are recognized contributors to SDY, we also observed an enrichment in epilepsy-related genes in the SDY cohort and a correlation between rare epilepsy variation and younger age at death. These findings emphasize the importance of considering epilepsy genes when evaluating SDY.


Assuntos
Cardiomiopatias , Epilepsia , Criança , Humanos , Feminino , Lactente , Masculino , Morte Súbita Cardíaca/etiologia , Inteligência Artificial , Teorema de Bayes , Arritmias Cardíacas/complicações , Arritmias Cardíacas/genética , Cardiomiopatias/genética , Cardiomiopatias/complicações , Epilepsia/genética , DNA , Testes Genéticos
6.
J Immunol ; 186(2): 667-74, 2011 Jan 15.
Artigo em Inglês | MEDLINE | ID: mdl-21169545

RESUMO

Development of long-term humoral immunity, characterized by the formation of long-lived plasma cells (PCs) in the bone marrow and memory B cells, is a critical component of protective immunity to pathogens, and as such it is the major goal of vaccination. However, the mechanisms involved in the generation of long-term humoral immunity remain poorly understood. In this study, we used IL-21R-deficient (IL-21R.KO) mice to examine the role of the IL-21 pathway in the development of the B cell memory response. Primary IgG serum Ab responses to the T cell-dependent Ag 4-hydroxy-3-nitrophenylacetyl (NP) hapten conjugated to chicken γ globulin were delayed in IL-21R.KO mice, but reached normal titers within 3 to 4 wk of immunization. IL-21R.KO mice formed germinal centers and generated normal numbers of PCs in their bone marrow. Additionally, memory B cell formation was similar in wild-type and IL-21R.KO mice. However, NP-specific memory B cells and PCs failed to expand following secondary immunization of IL-21R.KO mice, and consequently, secondary IgG Ab responses to NP hapten conjugated to chicken γ globulin were significantly impaired. These results identify the IL-21 pathway as a critical component of the memory B cell response.


Assuntos
Subpopulações de Linfócitos B/imunologia , Subpopulações de Linfócitos B/metabolismo , Diferenciação Celular/imunologia , Imunoglobulina G/biossíntese , Imunoglobulina M/biossíntese , Memória Imunológica , Receptores de Interleucina-21/fisiologia , Animais , Antígenos de Superfície/biossíntese , Proteínas Reguladoras de Apoptose/biossíntese , Subpopulações de Linfócitos B/citologia , Diferenciação Celular/genética , Galinhas/imunologia , Células Dendríticas Foliculares/imunologia , Células Dendríticas Foliculares/metabolismo , Centro Germinativo/citologia , Centro Germinativo/imunologia , Centro Germinativo/metabolismo , Haptenos/administração & dosagem , Haptenos/imunologia , Imunização Secundária , Memória Imunológica/genética , Memória Imunológica/imunologia , Antígenos Comuns de Leucócito/biossíntese , Camundongos , Camundongos Endogâmicos C57BL , Camundongos Knockout , Nitrofenóis/administração & dosagem , Nitrofenóis/imunologia , Fenilacetatos/administração & dosagem , Fenilacetatos/imunologia , Receptor de Morte Celular Programada 1 , Receptores CXCR5/biossíntese , Receptores de Interleucina-21/deficiência , Receptores de Interleucina-21/genética , Linfócitos T Auxiliares-Indutores/citologia , Linfócitos T Auxiliares-Indutores/imunologia , Linfócitos T Auxiliares-Indutores/metabolismo , gama-Globulinas/administração & dosagem , gama-Globulinas/imunologia
7.
medRxiv ; 2023 Mar 29.
Artigo em Inglês | MEDLINE | ID: mdl-37034657

RESUMO

Background: Sudden unexpected death in children is a tragic event. Understanding the genetics of sudden death in the young (SDY) enables family counseling and cascade screening. The objective of this study was to characterize genetic variation in an SDY cohort using whole genome sequencing. Methods: The SDY Case Registry is a National Institutes of Health/Centers for Disease Control surveillance effort to discern the prevalence, causes, and risk factors for SDY. The SDY Case Registry prospectively collected clinical data and DNA biospecimens from SDY cases <20 years of age. SDY cases were collected from medical examiner and coroner offices spanning 13 US jurisdictions from 2015-2019. The cohort included 211 children (mean age 1 year; range 0-20 years), determined to have died suddenly and unexpectedly and in whom DNA biospecimens and next-of-kin consent were ascertained. A control cohort consisted of 211 randomly sampled, sex-and ancestry-matched individuals from the 1000 Genomes Project. Genetic variation was evaluated in epilepsy, cardiomyopathy and arrhythmia genes in the SDY and control cohorts. American College of Medical Genetics/Genomics guidelines were used to classify variants as pathogenic or likely pathogenic. Additionally, genetic variation predicted to be damaging was identified using a Bayesian-based artificial intelligence (AI) tool. Results: The SDY cohort was 42% European, 30% African, 17% Hispanic, and 11% with mixed ancestries, and 39% female. Six percent of the cohort was found to harbor a pathogenic or likely pathogenic genetic variant in an epilepsy, cardiomyopathy or arrhythmia gene. The genomes of SDY cases, but not controls, were enriched for rare, damaging variants in epilepsy, cardiomyopathy and arrhythmia-related genes. A greater number of rare epilepsy genetic variants correlated with younger age at death. Conclusions: While damaging cardiomyopathy and arrhythmia genes are recognized contributors to SDY, we also observed an enrichment in epilepsy-related genes in the SDY cohort, and a correlation between rare epilepsy variation and younger age at death. These findings emphasize the importance of considering epilepsy genes when evaluating SDY.

8.
Acad Forensic Pathol ; 12(4): 129-139, 2022 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-36545303

RESUMO

Introduction: Postmortem genetic testing (PMGT) can provide valuable information about an individual's cause of death and potentially allow at-risk relatives to discern their risks for inherited cardiac disease. Postmortem genetic testing is most often successful with certain specimens. Methods: Investigators collected data on postmortem referrals to GeneDx, LLC for PMGT. Orders were reviewed and stratified based on provider, specimen type, and tests ordered. Discussion: This cohort included 601 deceased individuals referred for PMGT with a total of 673 genetic tests ordered from 247 different providers. The most common test categories ordered were arrhythmia (33.4%) and cardiomyopathy (29.3%). A likely pathogenic or pathogenic genetic variant was identified in approximately 15% of patients. Blood in EDTA was received for 21.6% of patients with a 95% success rate for completion of all test components. Blood samples in EDTA were most successful in completing PMGT, but sequencing was still successful in the majority of suboptimal specimens. Conclusion: The use of PMGT is increasing. Obtaining optimal samples (blood in EDTA) is important for successful completion of genetic testing. Obstacles may still exist for obtaining and storing ideal specimens. Continued efforts are needed for education and awareness around appropriate specimen types, storage and shipping of specimens, DNA banking, and overall availability of PMGT. In addition, access to resources such as supplies, proper storage conditions, DNA banking, and PMGT will allow for more opportunities to complete testing.

9.
Can J Occup Ther ; 89(2): 190-200, 2022 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-35275507

RESUMO

Background. The Performance Assessment of Self-Care Skills (PASS) is a standardized assessment of the ability to perform daily activities. Purposes. This preliminary exploratory study aimed to 1) explore the ability of four PASS tasks to predict adverse events (readmissions and injuries) in older adults following hospitalization; 2) compare PASS's predictive validity to that of a generic tool (SMAF) and OT clinical judgement. Method.Twenty-two older patients were assessed in hospital at discharge and at home one week later. Adverse events were documented for six months post-discharge. Sensitivity and specificity analyses (ROC curves, Fisher's exact tests) were performed. Findings. Two PASS tasks (telephone, medication), the SMAF-Social and OT clinical judgement could identify individuals at risk of readmission (AUC > 0.7; p < 0.05). Implications. Using the PASS to assess more cognitively demanding tasks could be a promising way to predict adverse events after discharge, as a complement to clinical judgment.


Assuntos
Terapia Ocupacional , Alta do Paciente , Atividades Cotidianas , Assistência ao Convalescente , Idoso , Humanos , Autocuidado
11.
Heart Rhythm ; 18(10): 1637-1644, 2021 10.
Artigo em Inglês | MEDLINE | ID: mdl-33781984

RESUMO

BACKGROUND: Thorough investigation of sudden cardiac death (SCD) in those aged 1-40 years commonly reveals a heritable cause, yet access to postmortem genetic testing is variable. OBJECTIVE: The purpose of this study was to explore practices of postmortem genetic testing and attitudes of health care professionals worldwide. METHODS: A survey was administered among health care professionals recruited through professional associations, social media, and networks of researchers. Topics included practices around postmortem genetic testing, level of confidence in health care professionals' ability, and attitudes toward postmortem genetic testing practices. RESULTS: There were 112 respondents, with 93% from North America, Europe, and Australia/New Zealand, and 7% from South America, Asia and Africa. Only 30% reported autopsy as mandatory, and overall practices were largely case by case and not standardized. North American respondents (87%) more often perceived practices as ineffective compared to those from Europe (58%) and Australia/New Zealand (48%; P = .002). Where a heritable cause is suspected, 69% considered postmortem genetic testing and 61% offered genetic counseling to surviving family members. Financial resources varied widely. Half of participants believed practices in their countries perpetuated health inequalities. CONCLUSION: Postmortem genetic testing is not consistently available in the investigation of young SCD despite being a recommendation in international guidelines. Access to postmortem genetic testing, which is critical in ascertaining a cause of death in many cases, must be guided by well-resourced, multidisciplinary teams.


Assuntos
Atitude do Pessoal de Saúde , Autopsia/métodos , Morte Súbita Cardíaca/patologia , Pessoal de Saúde/psicologia , Patologistas/psicologia , Inquéritos e Questionários , Estudos Transversais , Morte Súbita Cardíaca/epidemiologia , Aconselhamento Genético , Testes Genéticos , Saúde Global , Humanos , Incidência
12.
J Arrhythm ; 37(3): 481-534, 2021 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-34141003

RESUMO

This international multidisciplinary document intends to provide clinicians with evidence-based practical patient-centered recommendations for evaluating patients and decedents with (aborted) sudden cardiac arrest and their families. The document includes a framework for the investigation of the family allowing steps to be taken, should an inherited condition be found, to minimize further events in affected relatives. Integral to the process is counseling of the patients and families, not only because of the emotionally charged subject, but because finding (or not finding) the cause of the arrest may influence management of family members. The formation of multidisciplinary teams is essential to provide a complete service to the patients and their families, and the varied expertise of the writing committee was formulated to reflect this need. The document sections were divided up and drafted by the writing committee members according to their expertise. The recommendations represent the consensus opinion of the entire writing committee, graded by Class of Recommendation and Level of Evidence. The recommendations were opened for public comment and reviewed by the relevant scientific and clinical document committees of the Asia Pacific Heart Rhythm Society (APHRS) and the Heart Rhythm Society (HRS); the document underwent external review and endorsement by the partner and collaborating societies. While the recommendations are for optimal care, it is recognized that not all resources will be available to all clinicians. Nevertheless, this document articulates the evaluation that the clinician should aspire to provide for patients with sudden cardiac arrest, decedents with sudden unexplained death, and their families.

13.
Heart Rhythm ; 18(1): e1-e50, 2021 01.
Artigo em Inglês | MEDLINE | ID: mdl-33091602

RESUMO

This international multidisciplinary document intends to provide clinicians with evidence-based practical patient-centered recommendations for evaluating patients and decedents with (aborted) sudden cardiac arrest and their families. The document includes a framework for the investigation of the family allowing steps to be taken, should an inherited condition be found, to minimize further events in affected relatives. Integral to the process is counseling of the patients and families, not only because of the emotionally charged subject, but because finding (or not finding) the cause of the arrest may influence management of family members. The formation of multidisciplinary teams is essential to provide a complete service to the patients and their families, and the varied expertise of the writing committee was formulated to reflect this need. The document sections were divided up and drafted by the writing committee members according to their expertise. The recommendations represent the consensus opinion of the entire writing committee, graded by Class of Recommendation and Level of Evidence. The recommendations were opened for public comment and reviewed by the relevant scientific and clinical document committees of the Asia Pacific Heart Rhythm Society (APHRS) and the Heart Rhythm Society (HRS); the document underwent external review and endorsement by the partner and collaborating societies. While the recommendations are for optimal care, it is recognized that not all resources will be available to all clinicians. Nevertheless, this document articulates the evaluation that the clinician should aspire to provide for patients with sudden cardiac arrest, decedents with sudden unexplained death, and their families.


Assuntos
Arritmias Cardíacas/complicações , Consenso , Morte Súbita Cardíaca/prevenção & controle , Família , Morte Súbita Cardíaca/epidemiologia , Saúde Global , Humanos , Morbidade , Taxa de Sobrevida
14.
Cell Immunol ; 266(1): 14-23, 2010.
Artigo em Inglês | MEDLINE | ID: mdl-20851384

RESUMO

Delayed-type hypersensitivity (DTH) is classically defined as inflammation involving activated Th1 cells and cytokine production. DTH paw swelling, along with the cytokines IL-2, IFNγ, MCP-1 and TNFα, were inhibited in Balb/c mice by cyclosporine A (CsA). Surprisingly, the DTH response in the B6D2F1 mice was unaffected by CsA, despite a decrease in TNFα and IFNγ levels. IL-2 levels, however, were not decreased. To determine if the IL-2 production in the B6D2F1 strain is occurring through CD28-mediated costimulation, both CsA and CTLA-4Ig were administered. Paw swelling and IL-2 levels were decreased, indicating a role for costimulation. Co-administration of temsirolimus and CsA also reduced DTH and IL-2 levels in B6D2F1 mice, demonstrating involvement of the mTORC1 pathway. These results indicate that the cell activation pathways responsible for DTH differ with mouse strain. It is important to understand these differences in order to accurately interpret the results using potential therapeutic agents.


Assuntos
Autoimunidade/imunologia , Ciclosporina/farmacologia , Hipersensibilidade Tardia/imunologia , Imunidade Celular/efeitos dos fármacos , Imunidade Celular/imunologia , Interleucina-2/imunologia , Abatacepte , Animais , Anticorpos/imunologia , Anticorpos/farmacologia , Autoimunidade/efeitos dos fármacos , Antígenos CD28/metabolismo , Movimento Celular/efeitos dos fármacos , Movimento Celular/imunologia , Ciclosporina/farmacocinética , Citocinas/metabolismo , Eritrócitos/imunologia , Feminino , Pé/patologia , Hipersensibilidade Tardia/patologia , Imunoconjugados/farmacologia , Interleucina-17/antagonistas & inibidores , Interleucina-17/imunologia , Linfonodos/citologia , Linfonodos/imunologia , Ativação Linfocitária/imunologia , Alvo Mecanístico do Complexo 1 de Rapamicina , Camundongos , Camundongos Endogâmicos BALB C , Camundongos Endogâmicos , Complexos Multiproteicos , Fatores de Transcrição NFATC/antagonistas & inibidores , Fatores de Transcrição NFATC/metabolismo , Inibidores de Proteínas Quinases/farmacologia , Proteínas/antagonistas & inibidores , Ovinos , Transdução de Sinais/efeitos dos fármacos , Transdução de Sinais/imunologia , Sirolimo/análogos & derivados , Sirolimo/farmacologia , Especificidade da Espécie , Linfócitos T/efeitos dos fármacos , Linfócitos T/imunologia , Linfócitos T/metabolismo , Serina-Treonina Quinases TOR , Vacinação
15.
J Pediatr X ; 22020.
Artigo em Inglês | MEDLINE | ID: mdl-32743542

RESUMO

OBJECTIVE: To describe epidemiologic data from the Sudden Death in the Young (SDY) Case Registry. Understanding the scope of SDY may optimize prevention efforts. STUDY DESIGN: We analyzed sudden, unexpected deaths of infants (<365 days) and children (1-17 years) from a population-based registry of 8 states/jurisdictions in 2015 and 9 in 2016. Natural deaths and injury deaths from drowning, motor vehicle accident drivers, and infant suffocation were included; other injury deaths, homicide, suicide, intentional overdose, and terminal illness were excluded. Cases were categorized using a standardized algorithm. Descriptive statistics were used to characterize deaths, and mortality rates were calculated. RESULTS: Of 1319 cases identified, 92% had an autopsy. We removed incomplete cases, leaving 1132 analyzable deaths (889 infants, 243 children). The SDY rate for infants was 120/100 000 live births and for children was 1.9/100 000 children. Explained Cardiac rates were greater for infants (2.7/100 000 live births) than children (0.3/100 000 children). The pediatric Sudden Unexpected Death in Epilepsy (SUDEP) mortality rate was 0.2/100 000 live births and children. Blacks comprised 42% of infant and 43% of child deaths but only 23% of the population. In all ages, myocarditis/endocarditis was the most common Explained Cardiac cause; respiratory illness was the most common Explained Other cause. SDY occurred during activity in 13% of childhood cases. CONCLUSIONS: Prevention strategies include optimizing identification and treatment of respiratory and cardiac diseases.

16.
Sci STKE ; 2007(402): pe48, 2007 Sep 04.
Artigo em Inglês | MEDLINE | ID: mdl-17785715

RESUMO

Toll-like receptor (TLR) activation is primarily thought to affect antigen-presenting cells (APCs) by inducing an innate immune response that can subsequently activate the adaptive immune system. However, there are increasing data that demonstrate expression and activation of TLRs on T cells, thus providing evidence for a direct role for TLRs in the activation of an adaptive immune response. A study recently demonstrated that Pam3CSK {N-palmitoyl-S-[2,3-bis(palmitoloxy)-(2RS)-propyl]-Cys-Ser-Lys(4)}, a TLR2 agonist lipopeptide, activates T helper 1 (T(H)1) cells and induces interferon-gamma (IFN-gamma) production, even in the absence of TLR1, which differs from its mechanism of activation of APCs. Moreover, whereas Pam3CSK-stimulated IFN-gamma production by T(H)1 cells is ablated in the absence of both myeloid differentiation marker 88 (MyD88), an adaptor protein in the TLR pathway, and interleukin-1 receptor (IL-1R)-associated kinase-4 (IRAK4), the mitogen-activated protein kinases p38 and c-Jun N-terminal kinase (JNK) are still phosphorylated. These data suggest that TLR2 activation of T(H)1 cells occurs through a mechanism different from that described for APCs and provides further evidence of direct TLR activation of the adaptive immune system.


Assuntos
Adaptação Fisiológica , Imunidade/fisiologia , Ativação Linfocitária/fisiologia , Linfócitos T/imunologia , Receptores Toll-Like/fisiologia , Animais , Células Apresentadoras de Antígenos/imunologia , Proteínas Quinases/fisiologia
17.
J Genet Couns ; 17(5): 499-507, 2008 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-18791812

RESUMO

This study evaluated the effectiveness of using a family history questionnaire to ascertain patients and families at-risk for inherited cardiovascular disease. A questionnaire composed of 21 questions was developed based on the experience of a cardiovascular genetic counselor. This questionnaire was administered to 39 patients at a University-based cardiology practice reflecting general and specialized aspects of cardiovascular medicine. Using the number and degree of relatedness of relatives reported and limited age of onset information participants were ranked into three familial risk categories. Thirty-nine patients participated in this pilot study. Of the 39 patients, six Mendelian diseases were identified. All individuals surveyed in this study were found to be at high and/or moderate risk for at least one disease based on the family history questionnaire. Twenty-five out of 39 participants (64.1%) were found to be at high risk for at least one cardiovascular disease, and thirty-three out of 39 participants (84.6%) were found to be at moderate risk for at least one disease. A family history of arrhythmia disorders, hypertension, hyperlipidemia, coronary artery disease and diabetes were more likely to be associated with a personal history in family histories of both moderate and high risk. Family history questionnaires in cardiology clinics can be a cost-effective tool for identifying patients and families who are in the greatest need of genetic evaluation and genetic counseling services.


Assuntos
Doenças Cardiovasculares/genética , Anamnese , Medição de Risco/métodos , Idoso , Doenças Cardiovasculares/classificação , Feminino , Humanos , Masculino , Projetos Piloto , Inquéritos e Questionários
18.
Med Teach ; 30(2): 185-91, 2008.
Artigo em Inglês | MEDLINE | ID: mdl-18464145

RESUMO

BACKGROUND: Many patients today have health concerns related to lifestyle factors. This has created a situation where physicians are regularly confronted with the challenge of how to conduct lifestyle counseling with patients. Specific strategies can enable physicians to more effectively navigate this complex area of communication with patients, improving patient response in adopting healthy behaviours and increasing physician satisfaction with this task. AIM: To evaluate the impact of a lifestyle counseling workshop incorporating the motivational enhancement and transtheoretical models upon primary care clinicians' counseling practice patterns, especially communication and counseling skills, and attitudes toward lifestyle counseling. METHOD: This study used a mixed method research design. Forty-three clinicians completed a post-workshop evaluation and identified intended changes to practice following the workshop. Twelve participated in interviews several months later to explore the kinds of changes made and influences upon them. RESULTS: Forty-one (95.3%) questionnaire respondents reported an intention to change their practice. Main changes reported were: asking more questions, listening more, assessing patients' readiness to change, tailoring counseling to patients' readiness to change. They seemed to have acquired and retained new knowledge and most were able to apply the new skills in their practices. Many reported feeling more comfortable and/or confident when interacting with patients in need of lifestyle change. But, time constraints, comfort with current skills, lack of self-efficacy, and fears of missing opportunities to influence patients, moderated participants' ability to adopt and maintain new approaches. CONCLUSIONS: While primary care clinicians can successfully learn specific lifestyle counseling skills and incorporate them into their practice following a two-hour evidence-based workshop, individual, educational and system factors can interfere.


Assuntos
Medicina de Família e Comunidade , Aconselhamento Genético , Estilo de Vida , Atenção Primária à Saúde , Adulto , Feminino , Grupos Focais , Genética/educação , Humanos , Internato e Residência , Masculino , Avaliação das Necessidades , Ontário
19.
Acad Forensic Pathol ; 8(2): 347-391, 2018 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-31240048

RESUMO

The Sudden Death in the Young (SDY) Case Registry, a prospective, population-based registry active in ten states, has developed tools to aid pathologists and death investigators in the evaluation and autopsy of unexplained, natural sudden deaths in the pediatric population. The tools were developed by a team of experts representing forensic pathology; pediatric-, cardiac-, and neuropathology; cardiology; neurology/epileptology; pediatrics; genetic counseling; and public health. These tools focus on collecting data relevant to determination of cause of death with a focus on dissection of the cardiovascular system. The tools provide an objective checklist format for ease of use and data extraction. By sharing the tools here and highlighting the examination of the cardiovascular system, the SDY Case Registry encourages a standardized approach to death investigation, autopsy, and data collection for sudden, unexpected deaths in the young towards a goal of informing prevention efforts. Acad Forensic Pathol. 2018 8(2): 347-391.

20.
Acad Forensic Pathol ; 8(3): 738-751, 2018 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-31240068

RESUMO

A significant portion of sudden death cases result from an underlying genetic etiology, which may be determined through postmortem genetic testing. The National Association of Medical Examiners (NAME) recommends that an appropriate postmortem sample is saved on all sudden death cases under the age of 40. Genetic counselors (GCs) play an important role in this process by working with medical examiners and coroners (ME/Cs) to recommend and interpret specific testing and to guide family members. A survey sent to the National Society of Genetic Counselors was designed and implemented to learn more about the experiences of genetic counselors who had considered or ordered postmortem genetic testing. Results showed that cardiovascular GCs were significantly more willing to recommend genetic testing in younger age decedents (ages 10, 18, 30, 40, and 50) compared to other specialty GCs (p<0.05, Chi-square). Thirty-seven percent (7 of 19) of GCs reported insurance covering some portion of genetic testing. Participants also reported highest success for DNA extractions with fresh and frozen blood, reinforcing NAME recommendations for appropriate sample collection for postmortem genetic testing. Overall, participating GCs demonstrated a very good understanding for the appropriate use of postmortem genetic testing and did identify suspected barriers of cost and lack of insurance coverage as deterrents. With the rapid decrease in costs for diagnostic genetic testing, ME/C awareness of NAME recommendations for sample collection and storage remain important to facilitate postmortem genetic testing.

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