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1.
Int J Mol Sci ; 23(18)2022 Sep 15.
Artigo em Inglês | MEDLINE | ID: mdl-36142656

RESUMO

Hypoxia affects tumor aggressiveness and activates pathways associated with epithelial mesenchymal transition (EMT) which are crucial for tumor progress. In this study, the correlation of hypoxia and EMT with sentinel lymph node status and tumor-specific survival was investigated in primary melanomas. CD34 for capillary count and Hypoxia inducible factor-1α (HIF-1α) as hypoxia indicators as well as Ezrin and L1-Cell Adhesion Molecule (L1CAM), both critical proteins contributing to EMT, were analyzed using immunohistochemistry in 49 melanoma patients with long follow-up (F/U, mean 110 months; range 12−263 months). We found a significant correlation between Breslow tumor thickness and Ezrin expression (p = 0.018). L1CAM expression in primary melanoma was significantly associated with HIF-1α expression (p < 0.0001) and sentinel lymph node metastasis (p = 0.011). Furthermore, low capillary count, reflecting hypoxic condition, was significantly associated with Ezrin expression (p = 0.047) and decreased tumor-specific survival (p = 0.035). In addition, patients with high Ezrin expression in their primary melanoma had a dramatic loss of life early in their F/U period (mean survival time 29 months; range 15−44 month). Our results highlight the relevance of Ezrin, L1CAM and HIF-1α as prognostic markers in melanoma patients. Additionally, we demonstrate that hypoxia in primary melanoma affects EMT and is at least partly responsible for early metastatic dissemination.


Assuntos
Melanoma , Molécula L1 de Adesão de Célula Nervosa , Hipóxia Celular , Linhagem Celular Tumoral , Proteínas do Citoesqueleto , Transição Epitelial-Mesenquimal , Regulação Neoplásica da Expressão Gênica , Humanos , Hipóxia/genética , Subunidade alfa do Fator 1 Induzível por Hipóxia , Prognóstico
2.
Inquiry ; 59: 469580221097427, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35514077

RESUMO

Distance counselling holds immense potential for improving access to trauma supports for survivors of sexual violence (SV), and particularly for under-served groups who disproportionately experience violence and myriad barriers to accessing in-person supports. And yet, the evidence-base for the practice and delivery of distance counselling remains under-developed. In the context of COVID-19, where telehealth applications have undergone a rapid uptake, we undertook a scoping review of existing evidence of therapeutic and organizational practices related to the real-time (synchronous) delivery of distance counselling to survivors of SV. We based our scoping review methods on Arksey and O'Malley framework and in accordance with the guidance on scoping reviews from the Joanna Briggs Institute (JBI) and PRISMA reporting guidelines for scoping reviews. A comprehensive search of MEDLINE, Embase, PsycINFO, CINAHL, Web of Science, and Sociological Abstracts was undertaken in October 2020, and again in March 2022. Searching, reviewing, appraisal, and data extraction was undertaken by two reviewers. In total, 1094 records were identified that resulted in 20 studies included. Descriptions, findings, and recommendations were gleaned and synthesized into potential practices using inductive thematic analysis. While many studies have an appreciative orientation to distance counselling, these benefits tend to be framed as non-universal, and conditional on survivor safety, flexibility, anonymity, survivor choice, strong and inclusive technology, and a supported workforce.Despite the limited evidence-base, we present several clusters of findings that, taken together, can be used to support current COVID-19 distance counselling initiatives with survivors, as well as guide the future development of best practices.


Assuntos
COVID-19 , Aconselhamento a Distância , Delitos Sexuais , Telemedicina , Humanos , Sobreviventes
3.
Cancer Epidemiol ; 45: 126-134, 2016 12.
Artigo em Inglês | MEDLINE | ID: mdl-27810484

RESUMO

BACKGROUND: Cancer screening is below targets in Ontario, Canada. Our objective was to identify and quantify the barriers and facilitators for breast, cervical and colorectal cancer screening for under and never screened (UNS) residents living in Ontario between 2011 and 2013. METHODS: We used a multi-phased mixed methods study design. Results from thematic analysis of focus group discussions with health care providers and UNS community members were used to develop an on-line, province-wide, cross-sectional survey to estimate the prevalence of barriers and facilitators for the provincial population. Adjusted prevalence odds ratios and 95% confidence intervals were estimated for UNS compared to regularly screened participants using logistic regression. RESULTS: Four focus groups were held with health service providers and sixteen with UNS community members. Top barriers and facilitators themed around provider-patient communication, fear and embarrassment, history of physical or sexual abuse, social determinants of health (including low literacy, lack of awareness, and health insurance), symptoms appearing, and family and friends. 3075 participants completed the online survey. Compared to regularly screened participants, UNS had significantly higher odds of reporting: no regular health care provider; not feeling comfortable talking about screening; or the Doctor or Nurse Practitioner not suggesting screening. UNS also had significantly higher odds of reporting the facilitators: the test being less scary/painful or uncomfortable; friend/family insisting on getting screened; starting to have symptoms; or an easier test that could be done at home. CONCLUSIONS: Interventions addressing fear through individual, interpersonal and structural facilitators may increase cancer screening.


Assuntos
Comunicação , Detecção Precoce de Câncer/métodos , Grupos Focais , Neoplasias/diagnóstico , Neoplasias/psicologia , Adulto , Idoso , Canadá , Estudos Transversais , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Neoplasias/prevenção & controle , Inquéritos e Questionários
4.
Child Abuse Negl ; 58: 12-23, 2016 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-27337692

RESUMO

STI rates are high for First Nations in Canada and the United States. Our objective was to understand the context, issues, and beliefs around high STI rates from a nêhiyaw (Cree) perspective. Twenty-two in-depth interviews were conducted with 25 community participants between March 1, 2011 and May 15, 2011. Interviews were conducted by community researchers and grounded in the Cree values of relationship, sharing, personal agency and relational accountability. A diverse purposive snowball sample of community members were asked why they thought STI rates were high for the community. The remainder of the interview was unstructured, and supported by the interviewer through probes and sharing in a conversational style. Modified grounded theory was used to analyze the narratives and develop a theory. The main finding from the interviews was that abuse of power in relationships causes physical, mental, emotional and spiritual wounds that disrupt the medicine wheel. Wounded individuals seek medicine to stop suffering and find healing. Many numb suffering by accessing temporary medicines (sex, drugs and alcohol) or permanent medicines (suicide). These medicines increase the risk of STIs. Some seek healing by participating in ceremony and restoring relationships with self, others, Spirit/religion, traditional knowledge and traditional teachings. These medicines decrease the risk of STIs. Younger female participants explained how casual relationships are safer than committed monogamous relationships. Resolving abuse of power in relationships should lead to improvements in STI rates and sexual health.


Assuntos
Poder Psicológico , Comportamento Sexual/psicologia , Saúde Sexual , Adolescente , Adulto , Idoso , Canadá/etnologia , Feminino , Humanos , Indígenas Norte-Americanos/psicologia , Relações Interpessoais , Masculino , Pessoa de Meia-Idade , Delitos Sexuais/etnologia , Delitos Sexuais/psicologia , Comportamento Sexual/etnologia , Infecções Sexualmente Transmissíveis/etnologia , Infecções Sexualmente Transmissíveis/psicologia , Suicídio/etnologia , Suicídio/psicologia , Estados Unidos/etnologia , Adulto Jovem
5.
Lancet ; 387(10022): 978-987, 2016 Mar 05.
Artigo em Inglês | MEDLINE | ID: mdl-26777270

RESUMO

BACKGROUND: Fetal alcohol spectrum disorder (FASD) is related to many comorbidities because of the permanent effects of prenatal alcohol exposure on the fetus. We aimed to identify the comorbid conditions that co-occur in individuals with FASD and estimate the pooled prevalence of comorbid conditions occurring in individuals with fetal alcohol syndrome (FAS). METHODS: We did a systematic literature search of studies reporting on the comorbidity and cause of death in individuals with FASD using multiple electronic bibliographic databases, searching for studies published up to July, 2012. We included original research published in a peer-reviewed journal in the English language. We used the following criteria for determining study quality: use of an established FASD diagnostic guideline, study setting, method of data collection, and sample size. All comorbid disease conditions were coded according to the International Classification of Diseases, tenth revision (ICD-10). To estimate the pooled prevalence of comorbid conditions found to co-occur in individuals with FAS, we did meta-analyses assuming a random-effects model. FINDINGS: Of 5068 studies found, 127 met eligibility criteria for data extraction. From those studies, we identified 428 comorbid conditions co-occurring in individuals with FASD, spanning across 18 of 22 chapters of the ICD-10. The most prevalent disease conditions were within the sections of congenital malformations, deformities, and chromosomal abnormalities, and mental and behavioural disorders. 33 studies reported data for frequency in a total of 1728 participants with FAS. The five comorbid conditions with the highest pooled prevalence (between 50% and 91%) included abnormal results of function studies of peripheral nervous system and special senses, conduct disorder, receptive language disorder, chronic serous otitis media, and expressive language disorder. INTERPRETATION: The high prevalence of comorbid conditions in individuals with FASD highlights the importance of assessing prenatal alcohol exposure as a substantial clinical risk factor for comorbidity. The harmful effects of alcohol on a developing fetus represent many cases of preventable disability, and thus, alcohol use during pregnancy should be recognised as a public health problem globally. FUNDING: Public Health Agency of Canada.


Assuntos
Transtornos do Espectro Alcoólico Fetal/epidemiologia , Comorbidade , Humanos , Prevalência
6.
BMC Public Health ; 14: 495, 2014 May 23.
Artigo em Inglês | MEDLINE | ID: mdl-24885998

RESUMO

BACKGROUND: Observed breast, cervical and colon cancer screening rates are below provincial targets for the province of Ontario, Canada. The populations who are under- or never-screened for these cancers have not been described at the Ontario provincial level. Our objective was to use qualitative methods of inquiry to explore who are the never- or under-screened populations of Ontario. METHODS: Qualitative data were collected from two rounds of focus group discussions conducted in four communities selected using maps of screening rates by dissemination area. The communities selected were archetypical of the Ontario context: urban, suburban, small city and rural. The first phase of focus groups was with health service providers. The second phase of focus groups was with community members from the under- and never-screened population. Guided by a grounded theory methodology, data were collected and analyzed simultaneously to enable the core and related concepts about the under- and never-screened to emerge. RESULTS: The core concept that emerged from the data is that the under- and never-screened populations of Ontario are characterized by diversity. Group level characteristics of the under- and never-screened included: 1) the uninsured (e.g., Old Order Mennonites and illegal immigrants); 2) sexual abuse survivors; 3) people in crisis; 4) immigrants; 5) men; and 6) individuals accessing traditional, alternative and complementary medicine for health and wellness. Under- and never-screened could have one or multiple group characteristics. CONCLUSION: The under- and never-screened in Ontario comprise a diversity of groups. Heterogeneity within and intersectionality among under- and never-screened groups adds complexity to cancer screening participation and program planning.


Assuntos
Detecção Precoce de Câncer/métodos , Necessidades e Demandas de Serviços de Saúde , Neoplasias/epidemiologia , Adulto , Neoplasias da Mama/epidemiologia , Neoplasias da Mama/prevenção & controle , Neoplasias do Colo/epidemiologia , Neoplasias do Colo/prevenção & controle , Etnicidade , Feminino , Disparidades em Assistência à Saúde , Humanos , Masculino , Pessoas sem Cobertura de Seguro de Saúde/estatística & dados numéricos , Pessoa de Meia-Idade , Neoplasias/prevenção & controle , Ontário/epidemiologia , População Rural , População Urbana , Neoplasias do Colo do Útero/epidemiologia , Neoplasias do Colo do Útero/prevenção & controle
7.
Can J Public Health ; 102(5): 336-40, 2011.
Artigo em Inglês | MEDLINE | ID: mdl-22032097

RESUMO

OBJECTIVES: The objective of this study was to conduct a systematic search of the literature for studies that estimated the prevalence/incidence of Fetal Alcohol Spectrum Disorder (FASD) in correctional systems in different countries and, based on these data, to estimate a) the number of people with Fetal Alcohol Syndrome (FAS)/FASD within the criminal justice system population, and b) the relative risk of becoming imprisoned for individuals with FAS/FASD compared with those without FAS/FASD. METHOD: A systematic world literature review of published and unpublished studies concerning the prevalence/incidence of FASD in correctional systems was conducted in multiple electronic bibliographic databases. SYNTHESIS: Very little empirical evidence is available on the prevalence of FASD in correctional systems. There were no studies estimating the prevalence/incidence of FASD in correctional systems found for any country other than Canada and the USA. The few studies that have identified incarcerated individuals with FASD estimate that the number of undiagnosed persons in correctional facilities is high. Based on available Canadian data, this study estimates that youths with FASD are 19 times more likely to be incarcerated than youths without FASD in a given year. CONCLUSION: More studies investigating the prevalence/incidence of alcohol-affected people in the criminal justice system are required. There is an urgent need to raise awareness about the prevalence and disabilities of individuals with FASD in the criminal justice system and about appropriate responses. The criminal justice system is an ideal arena for intervention efforts aimed at the rehabilitation and prevention or reduction of recidivism in this unique population.


Assuntos
Transtornos do Espectro Alcoólico Fetal/epidemiologia , Prisões/estatística & dados numéricos , Consumo de Bebidas Alcoólicas/epidemiologia , Canadá/epidemiologia , Feminino , Humanos , Gravidez , Estados Unidos/epidemiologia
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