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1.
J Racial Ethn Health Disparities ; 11(2): 826-833, 2024 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-36959392

RESUMO

PURPOSE: Obesity and weight gain in breast cancer survivors leads to a greater risk of recurrence and a decreased chance of survival. A paucity of data exists regarding strengths, weaknesses, and barriers for implementing culturally sensitive, patient-centered interventions for weight management among minority communities. The objective of this study was to evaluate breast cancer patients' experience and perspectives regarding weight management in a racially diverse population. METHODS: Semi-structured qualitative interviews were conducted with breast cancer patients with a body mass index ≥ 25 kg/m2 regarding their experience with weight management. Interviews were transcribed verbatim, and a thematic analysis was conducted. RESULTS: Participants (n = 17) most commonly self-identified as non-Hispanic Black (70.6%). Nearly all participants felt comfortable being approached about weight management, yet less than half (41.2%) reported that they knew about the link between breast cancer and body weight prior to the interview. Four themes emerged: (1) lack of knowledge regarding the link between body weight and breast cancer risk, (2) barriers to weight management including family stressors, high cost, mental health issues, and chronic medical conditions, (3) previous attempts at weight loss including bariatric surgery, and (4) best practices for approaching weight management including discussion of weight management prior to survivorship. CONCLUSION: There is a need for a multidisciplinary, patient-centered weight management program for minority breast cancer patients that improves awareness of the link between weight and breast cancer risk. Weight management should be introduced early on as an element of the treatment plan for breast cancer.


Assuntos
Neoplasias da Mama , Humanos , Feminino , Obesidade/psicologia , Redução de Peso , Índice de Massa Corporal , Grupos Minoritários , Pesquisa Qualitativa
2.
Neurourol Urodyn ; 43(2): 329-341, 2024 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-38108255

RESUMO

PURPOSE: To identify factors associated with urinary incontinence (UI) in women of various Hispanic/Latina backgrounds. MATERIALS AND METHODS: We analyzed data from the Hispanic Community Health Study/Study of Latinos (HCHS/SOL), a multicenter, community-based cohort study which includes a health-related questionnaire assessing presence and type of UI. Complex survey logistic regression analysis was used to assess the cross-sectional association of Hispanic/Latina backgrounds and other factors of UI. All estimates accounted for HCHS/SOL survey design. RESULTS: Of 5027 women, 33.4% answered "yes" to UI. Rates of any UI ranged from approximately 21.9% to 40.3% in women of Dominican and Puerto-Rican background, respectively. Any UI and UI subtypes were associated with age older than 65 years, increasing body mass index, smoking status, any alcohol use, parity ≥3, and postmenopausal status. After controlling for covariates and when compared with women of Mexican background, women of Dominican background were less likely to have any UI (OR = 0.42, 95% CI 0.30-0.57), as were women of Cuban (OR = 0.48, 95% CI 0.37-0.62), Puerto-Rican (OR = 0.79, 95% CI 0.62-1.0), and mixed (OR = 0.62, 95% CI 0.39-0.99) background; and women of every other background except for South American were less likely to have stress UI. In addition, women of Cuban (OR = 0.53, 95% CI 0.32-0.86) and mixed (OR = 0.38, 95% CI 0.16-0.87) background were less likely to have urge UI than women of Mexican background. CONCLUSIONS: Our study demonstrates differences in UI by Hispanic/Latina background, suggesting collective designation of Hispanics/Latinas as a single ethnic group does not adequately describe UI among this diverse group.


Assuntos
Hispânico ou Latino , Saúde Pública , Humanos , Estados Unidos/epidemiologia , Feminino , Idoso , Masculino , Estudos Transversais , Estudos de Coortes , Incontinência Urinária de Urgência , Fatores de Risco , Prevalência
3.
Cancer ; 129(S19): 3102-3113, 2023 09.
Artigo em Inglês | MEDLINE | ID: mdl-37691521

RESUMO

BACKGROUND: Mammography is an effective screening tool that leads to decreased breast cancer mortality, yet minority women continue to experience barriers. The coronavirus disease 2019 (COVID-19) pandemic has been proven to have negatively affected minority communities, yet its effect on mammography screening habits in Black women is uncertain. The purpose of this study was to evaluate breast cancer mammography screening habits and barriers for Black women in two northeast communities amid the COVID-19 pandemic. METHODS: The study participants were Black women aged 40 years or older who were recruited from community outreach initiatives. Study coordinators conducted telephone surveys to determine mammography screening behaviors, perceptions, and psychosocial factors. RESULTS: Two hundred seventy-seven surveys were completed. Two hundred fifty-six patients who reported ever having a mammogram became the study population of interest. One hundred seventy-four of these patients (68%) reported having a mammogram within the past year (nondelayed), and 82 (32%) had a mammogram more than a year ago (delayed). Only thirty-one of the delayed participants (37.8%) had private insurance. There was a significant difference in the mean score for mammography screening perceived barriers for nondelayed participants (mean = 9.9, standard deviation [SD] = 3.6) versus delayed participants (mean = 11.2, SD = 4.3, p = .03). There was also a significant difference in the mean score when they were asked, "How likely is it that 'other health problems would keep you from having a mammogram'?" (p = .002). CONCLUSIONS: Barriers to mammography screening for Black women during the COVID-19 era include insurance, competing health issues, and perceptions of screening. Community outreach efforts should concentrate on building trust and collaborating with organizations to improve screening despite the COVID-19 pandemic.


Assuntos
Negro ou Afro-Americano , Neoplasias da Mama , Mamografia , Programas de Rastreamento , Feminino , Humanos , População Negra , Neoplasias da Mama/diagnóstico por imagem , Neoplasias da Mama/psicologia , COVID-19/epidemiologia , COVID-19/psicologia , Mamografia/psicologia , Pandemias , Programas de Rastreamento/psicologia , Conhecimentos, Atitudes e Prática em Saúde , Hábitos , Negro ou Afro-Americano/psicologia , New England , Adulto , Relações Comunidade-Instituição
4.
Plast Reconstr Surg ; 2023 Aug 11.
Artigo em Inglês | MEDLINE | ID: mdl-37563756

RESUMO

BACKGROUND: After approval of Sientra silicone gel breast implants in March of 2012, the U.S. Food and Drug Administration required completion of a 10-year U.S. post-approval study. We present results from the first 6 years of this study. METHODS: An ongoing, open-label, prospective, multicenter study is being conducted to evaluate the long-term clinical performance of Sientra implants in patients receiving breast augmentation, reconstruction, and revision in the post-market environment. Enrollment of 5197 patients (10,327 implants) was completed on March 6, 2015, (4046 primary augmentation, 895 revision-augmentation, 149 primary reconstruction, and 107 revision-reconstruction). Analyses were conducted at year 6 (database lock: January 24, 2022). RESULTS: Across all cohorts who received an implant, the Kaplan-Meier risk of investigator-reported Baker grade III/IV capsular contracture was 4.1 percent (3.9 percent with submuscular placement and 6.7 percent with subglandular placement), the risk of reoperation was 11.6 percent, and the risk of implant removal was 7.8 percent (5.9 percent with implant replacement and 2.0 percent without replacement). The primary reason (over 50 percent) for reoperation was aesthetic (e.g., style/size change). The Kaplan-Meier risk of rupture, calculated for patients who underwent explantation or MRI for rupture evaluation, was 5.8 percent. Overall, 82.6 percent of patients were highly satisfied/happy with their implant. No cases of breast implant-associated anaplastic large cell lymphoma were reported. CONCLUSIONS: Six-year results of the post-approval study were consistent with the 10-year core study and provide additional evidence in a large dataset supporting the comprehensive safety and effectiveness profile of the Sientra implants.

5.
J Urol ; 207(2): 277-283, 2022 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-34555934

RESUMO

PURPOSE: Daily aspirin use following cardiovascular intervention is commonplace and creates concern regarding bleeding risk in patients undergoing surgery. Despite its cardio-protective role, aspirin is often discontinued 5-7 days prior to major surgery due to bleeding concerns. Single institution studies have investigated perioperative outcomes of aspirin use in robotic partial nephrectomy (RPN). We sought to evaluate the outcomes of perioperative aspirin (pASA) use during RPN in a multicenter setting. MATERIALS AND METHODS: We performed a retrospective evaluation of patients undergoing RPN at 5 high volume RPN institutions. We compared perioperative outcomes of patients taking pASA (81 mg) to those not on aspirin. We analyzed the association between pASA use and perioperative transfusion. RESULTS: Of 1,565 patients undergoing RPN, 228 (14.5%) patients continued pASA and were older (62.8 vs 56.8 years, p <0.001) with higher Charlson scores (mean 3 vs 2, p <0.001). pASA was associated with increased perioperative blood transfusions (11% vs 4%, p <0.001) and major complications (10% vs 3%, p <0.001). On multivariable analysis, pASA was associated with increased transfusion risk (OR 1.94, 1.10-3.45, 95% CI). CONCLUSIONS: In experienced hands, perioperative aspirin 81 mg use during RPN is reasonable and safe; however, there is a higher risk of blood transfusions and major complications. Future studies are needed to clarify the role of antiplatelet therapy in RPN patients requiring pASA for primary or secondary prevention of cardiovascular events.


Assuntos
Perda Sanguínea Cirúrgica/estatística & dados numéricos , Neoplasias Renais/cirurgia , Nefrectomia/efeitos adversos , Inibidores da Agregação Plaquetária/efeitos adversos , Procedimentos Cirúrgicos Robóticos/efeitos adversos , Idoso , Aspirina/efeitos adversos , Perda Sanguínea Cirúrgica/prevenção & controle , Transfusão de Sangue/estatística & dados numéricos , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Nefrectomia/métodos , Nefrectomia/estatística & dados numéricos , Assistência Perioperatória/efeitos adversos , Estudos Retrospectivos , Procedimentos Cirúrgicos Robóticos/estatística & dados numéricos , Resultado do Tratamento
6.
Sci Adv ; 7(45): eabh2148, 2021 Nov 05.
Artigo em Inglês | MEDLINE | ID: mdl-34739319

RESUMO

Brain tumor­initiating cells (BTICs) drive glioblastoma growth through not fully understood mechanisms. Here, we found that about 8% of cells within the human glioblastoma microenvironment coexpress programmed cell death 1 (PD-1) and BTIC marker. Gain- or loss-of-function studies revealed that tumor-intrinsic PD-1 promoted proliferation and self-renewal of BTICs. Phosphorylation of tyrosines within the cytoplasmic tail of PD-1 recruited Src homology 2­containing phosphatase 2 and activated the nuclear factor kB in BTICs. Notably, the tumor-intrinsic promoting effects of PD-1 did not require programmed cell death ligand 1(PD-L1) ligation; thus, the therapeutic antibodies inhibiting PD-1/PD-L1 interaction could not overcome the growth advantage of PD-1 in BTICs. Last, BTIC-intrinsic PD-1 accelerated intracranial tumor growth, and this occurred in mice lacking T and B cells. These findings point to a critical role for PD-1 in BTICs and uncover a nonimmune resistance mechanism of patients with glioblastoma to PD-1­ or PD-L1­blocking therapies.

7.
J Osteopath Med ; 122(1): 65-68, 2021 Nov 22.
Artigo em Inglês | MEDLINE | ID: mdl-34800011

RESUMO

Hemoglobin A1c (HbA1c) is a very common measure utilized to diagnose diabetes and to monitor the level of glycemic control during the course of management. Despite the high utility of HbA1c, it has some limitations. Physiological conditions that affect the lifespan of red blood cells (RBCs) can falsely elevate or lower HbA1c results. In this case report, we present a case of a patient who was found to have hereditary spherocytosis (HS) after developing nephrotic range proteinuria. The patient had diabetes that was previously thought to be well controlled, but his HS was masking his poor glycemic control. This case highlights the importance of understanding the limitations of the HbA1c in managing patients with diabetes.


Assuntos
Glicemia , Controle Glicêmico , Hemoglobinas Glicadas/análise , Humanos
8.
J Endourol Case Rep ; 6(4): 328-331, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-33457666

RESUMO

Background: Ureteral stricture disease is a troubling urologic issue that can be managed with surgical reconstruction or, more conservatively, with chronic nephrostomy tubes or ureteral stents. These indwelling tubes require exchanges and are prone to complications such as encrustation or stent failure. Metallic ureteral stents are designed to be more resistant to extrinsic compression and allow for exchanges at longer intervals. However, encrustation or tissue ingrowth can occur with these stents as well. The removal of encrusted or embedded metallic ureteral stents poses a difficult clinical scenario. We present a case of an encrusted metallic stent embedded in a proximal ureteral stricture requiring percutaneous endoscopic removal with a novel looped-wire technique. Case Presentation: A 50-year-old Caucasian man with bilateral ureteral stricture disease, managed with chronic indwelling metallic stents, failed retrograde removal on the right during routine exchange. Staged procedures with percutaneous nephrostomy, followed by combined percutaneous antegrade and retrograde endoscopy were required to observe and access the embedded stent. The exposed metallic surface was unable to be grasped by available instruments through flexible endoscopy. Under endoscopic control with fluoroscopic guidance, a polytetrafluoroethylene (PTFE)-coated guidewire was looped around the metallic stent. With gentle traction on the wire loop, the embedded stent curl was delivered out of the stricture and into the renal pelvis from where it was extracted carefully with graspers inserted through a rigid nephroscope. Follow-up antegrade fluoroscopic studies with contrast showed no extravasation. Conclusion: Percutaneous removal of metallic stents retained within the ureter has unique challenges. We present a novel method of extraction of a retained metallic stent with a looped PTFE-coated guidewire, which may safely and effectively be used in complex situations.

9.
Health Promot Int ; 33(1): 115-122, 2018 Feb 01.
Artigo em Inglês | MEDLINE | ID: mdl-27492826

RESUMO

Gambling impacts affect Australian Indigenous families and communities in diverse and complex ways. Indigenous people throughout Australia engage in a broad range of regulated and unregulated gambling activities. Challenges in this area include the complexities that come with delivering services and programmes between the most remote regions, to highly populated towns and cities of Australia. There is little knowledge transfer between states and territories in Australia and no conceptual understanding or analysis of what constitutes 'best practice' in gambling service delivery for Indigenous people, families and communities. This article reviews health promotion approaches used in Australia, with a particular focus on Indigenous and gambling-based initiatives. Contributing to this review is an examination of health promotion strategies used in Indigenous gambling service delivery in the Northern Territory, New South Wales and Western Australia, demonstrating diversity and innovation in approaches. The article concludes by emphasizing the potential value of adopting health promotion strategies to underpin programme and service delivery for addressing gambling problems in Australian Indigenous communities. However, success is contingent on robust, evidence-based programme design, implementation and evaluation that adhere to health promotion principles.


Assuntos
Participação da Comunidade/psicologia , Jogo de Azar/etnologia , Promoção da Saúde , Havaiano Nativo ou Outro Ilhéu do Pacífico/psicologia , Austrália , Humanos
11.
Int J Exp Pathol ; 97(1): 56-65, 2016 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-26853073

RESUMO

We aimed to assess the expression and distribution of Hsp27, pHsp27 (Ser82), p38MAPK and p-p38MAPK in fibro-fatty atherosclerotic lesions and the myocardium of hypercholesterolaemic rabbits. Male New Zealand white rabbits were fed a high-cholesterol diet for 18 weeks, maintaining serum cholesterol at approximately 20 mmol/l over this period. Aortic arch and myocardial tissues were analysed by Western blot, immunohistochemistry and double immunofluorescence. Plasma Hsp27 levels were measured by ELISA. There was a significant increase in the expression of monomeric and dimeric forms of Hsp27, together with pHsp27 (Ser82), p38MAPK and p-p38MAPK in the fibro-fatty atherosclerotic lesions (P < 0.01; P < 0.05; P < 0.001; and P < 0.001, respectively) and the myocardial tissues (P < 0.001) from the cholesterol-fed rabbits compared with equivalent tissues from controls when the plasma concentration was low. Immunohistochemical analysis of the fibro-fatty lesions showed marked increases in Hsp27 and pHsp27 (Ser82) immunoreactivity. Double immunostaining showed intense expression of pHsp27 and p-p38MAPK in regions that were rich in macrophages, suggesting a close association with these inflammatory cells, whereas, in regions rich in smooth muscle cells, only p-p38MAPK was found to be strongly expressed. An increased expression of pHsp27 (Ser82) was spatially associated with increased p-p38MAPK within fibro-fatty atherosclerotic lesions and was colocalized to regions rich in macrophages. The initial increase in plasma Hsp27 levels may reflect the increase in systemic inflammation and oxidative stress in the early phases of disease. The falling concentrations subsequently may be coincident with the development of the advanced atherosclerotic lesions.


Assuntos
Aterosclerose/metabolismo , Proteínas de Choque Térmico HSP27/metabolismo , Macrófagos/metabolismo , Proteínas Quinases p38 Ativadas por Mitógeno/metabolismo , Animais , Aorta/metabolismo , Aorta/patologia , Aterosclerose/induzido quimicamente , Colesterol/metabolismo , Modelos Animais de Doenças , Imuno-Histoquímica/métodos , Masculino , Miócitos de Músculo Liso/metabolismo , Fosforilação , Coelhos
12.
Plast Reconstr Surg ; 134(1 Suppl): 57S-67S, 2014 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-25057751

RESUMO

As of 2012, breast augmentation surgery continues to be the most commonly performed aesthetic surgical procedure in the United States. Surgeons consider a multitude of factors when choosing the type and style of breast implant for a patient. With the continuous evolution of breast implant designs, there are a variety of breast implant options for plastic surgeons to choose from; however, round implants remain the implant of choice for breast augmentation. This article discusses preoperative planning, implant selection, surgical techniques, and postoperative management using Sientra's Silimed brand smooth and textured round implants.


Assuntos
Implante Mamário/métodos , Implantes de Mama , Desenho de Prótese , Implante Mamário/tendências , Humanos , Contratura Capsular em Implantes/prevenção & controle , Cuidados Pós-Operatórios , Tatuagem
13.
J Gambl Stud ; 30(2): 387-402, 2014 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-23378227

RESUMO

Despite a long history of gambling amongst many Indigenous peoples, knowledge about contemporary Indigenous gambling is sparse. In Australia, previous studies of Indigenous gambling have been severely limited in number, scope and rigour. The research reported in this paper is based on the first Indigenous-specific quantitative gambling research undertaken in Australia since 1996 and draws on the largest sample to date. This study examined numerous aspects of gambling among Indigenous Australians. After appropriate consultations and permission, the study collected surveys from 1,259 self-selected Indigenous adults in 2011 at three Indigenous festivals, online and in several Indigenous communities. This paper draws on these data to identify problem gambling risk factors by comparing selected socio-demographic characteristics, early exposure to gambling, gambling motivations, gambling behaviour, gambling cognitions, and substance use while gambling, amongst non-problem, low risk, moderate risk and problem gamblers. A logistic regression investigated the difference between problem gamblers and all other PGSI groups. Risk factors associated with being a problem gambler were: being older, commencing gambling when under 10 years old, always being exposed to adults gambling as a child, using alcohol and/or drugs while gambling, having family and friends who gamble, having an addiction to gambling and not gambling to socialise, having a high expenditure on commercial gambling, and living in a state or territory other than NSW or QLD. Public health measures to address these risk factors are identified.


Assuntos
Jogo de Azar/etnologia , Havaiano Nativo ou Outro Ilhéu do Pacífico/psicologia , Adulto , Idoso , Austrália , Coleta de Dados , Pesquisa Empírica , Feminino , Jogo de Azar/psicologia , Humanos , Masculino , Pessoa de Meia-Idade , Análise Multivariada , Havaiano Nativo ou Outro Ilhéu do Pacífico/estatística & dados numéricos , Fatores de Risco
14.
J Gambl Stud ; 30(3): 737-55, 2014 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-23740348

RESUMO

This paper aimed to analyze the harms arising from gambling and gambling-related help-seeking behaviour within a large sample of Indigenous Australians. A self-selected sample of 1,259 Indigenous Australian adults completed a gambling survey at three Indigenous sports and cultural events, in several communities and online. Based on responses to the problem gambling severity index (PGSI), the proportions of the sample in the moderate risk and problem gambler groups were higher than those for the population of New South Wales. Many in our sample appeared to face higher risks with their gambling and experience severe gambling harms. From PGSI responses, notable harms include financial difficulties and feelings of guilt and regret about gambling. Further harms, including personal, relationship, family, community, legal and housing impacts, were shown to be significantly higher for problem gamblers than for the other PGSI groups. Most problem gamblers relied on family, extended family and friends for financial help or went without due to gambling losses. Nearly half the sample did not think they had a problem with gambling but the results show that the majority (57.7 %) faced some risk with their gambling. Of those who sought gambling help, family, extended family, friends and respected community members were consulted, demonstrating the reciprocal obligations underpinning traditional Aboriginal culture. The strength of this finding is that these people are potentially the greatest source of gambling help, but need knowledge and resources to provide that help effectively. Local Aboriginal services were preferred as the main sources of professional help for gambling-related problems.


Assuntos
Jogo de Azar/diagnóstico , Jogo de Azar/etnologia , Havaiano Nativo ou Outro Ilhéu do Pacífico/estatística & dados numéricos , Aceitação pelo Paciente de Cuidados de Saúde/etnologia , Índice de Gravidade de Doença , Adolescente , Adulto , Feminino , Jogo de Azar/psicologia , Humanos , Controle Interno-Externo , Masculino , Pessoa de Meia-Idade , Havaiano Nativo ou Outro Ilhéu do Pacífico/psicologia , New South Wales/epidemiologia , Aceitação pelo Paciente de Cuidados de Saúde/psicologia , Reprodutibilidade dos Testes , Medição de Risco , Inquéritos e Questionários/normas
15.
J Gambl Stud ; 30(2): 369-86, 2014 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-23338830

RESUMO

The gambling activities of minority groups such as Indigenous peoples are usually culturally complex and poorly understood. To redress the scarcity of information and contribute to a better understanding of gambling by Indigenous people, this paper presents quantitative evidence gathered at three Australian Indigenous festivals, online and in several Indigenous communities. With support from Indigenous communities, the study collected and analyzed surveys from 1,259 self-selected Indigenous adults. Approximately 33 % of respondents gambled on card games while 80 % gambled on commercial gambling forms in the previous year. Gambling participation and involvement are high, particularly on electronic gaming machines (EGMs), the favorite and most regular form of gambling. Men are significantly more likely to participate in gambling and to gamble more frequently on EGMs, horse/dog races, sports betting and instant scratch tickets. This elevated participation and frequency of gambling on continuous forms would appear to heighten gambling risks for Indigenous men. This is particularly the case for younger Indigenous men, who are more likely than their older counterparts to gamble on EGMs, table games and poker. While distinct differences between the gambling behaviors of our Indigenous sample and non-Indigenous Australians are apparent, Australian Indigenous behavior appears similar to that of some Indigenous and First Nations populations in other countries. Although this study represents the largest survey of Indigenous Australian gambling ever conducted in New South Wales and Queensland, further research is needed to extend our knowledge of Indigenous gambling and to limit the risks from gambling for Indigenous peoples.


Assuntos
Jogo de Azar/etnologia , Havaiano Nativo ou Outro Ilhéu do Pacífico/psicologia , Adolescente , Adulto , Idoso , Animais , Austrália , Coleta de Dados , Feminino , Jogo de Azar/psicologia , Humanos , Masculino , Pessoa de Meia-Idade , Havaiano Nativo ou Outro Ilhéu do Pacífico/estatística & dados numéricos , Adulto Jovem
17.
Aust N Z J Public Health ; 34(6): 547-53, 2010 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-21134054

RESUMO

OBJECTIVE: This paper details how we, as 'cultural outsiders', conducted a large gambling survey in an Indigenous Australian community that adhered to Indigenous ethical protocols and values while differing from some standard survey practices. APPROACH: The paper summarises the ethical guidelines for conducting Indigenous public health research. It describes research processes used in the study in eight generic steps identified in Keeping Research on Track: A Guide for Aboriginal and Torres Strait Islander Peoples About Health Research Ethics.(1) It explains how adherence to these guidelines contributed to successful project completion. CONCLUSION: The research processes used to conduct this project gave explicit recognition and commitment to respecting Indigenous cultural values and principles. It engaged the Indigenous community in ways that promoted its ownership of the research issue, ensured the validity and reliability of the research data and unearthed potential solutions to problems identified. IMPLICATIONS: By sharing our experiences in attempting to conduct research that respected these values and principles, we have contributed to culturally appropriate and ethical research with participating Indigenous peoples and communities.


Assuntos
Coleta de Dados/métodos , Ética em Pesquisa , Jogo de Azar/etnologia , Saúde Pública , Austrália , Participação da Comunidade , Cultura , Guias como Assunto , Inquéritos Epidemiológicos , Humanos , Entrevistas como Assunto , Havaiano Nativo ou Outro Ilhéu do Pacífico/psicologia , Características de Residência
18.
Wound Repair Regen ; 16(1): 70-9, 2008.
Artigo em Inglês | MEDLINE | ID: mdl-18086289

RESUMO

Wound healing in the mid-gestation fetus is scarless with minimal inflammation and a unique extracellular matrix. We have previously documented the relative lack of inflammatory cytokines in this environment. We demonstrate that interleukin (IL)-10 is highly expressed in mid-gestation human fetal skin but is absent in postnatal human skin. We hypothesize that overexpression of IL-10 in postnatal skin may replicate a permissive environment for scarless healing. To study the mechanism underlying this process we performed immunohistochemistry for IL-10 in human mid-gestation fetal and postnatal skin. We also determined if adenoviral-mediated overexpression of IL-10 could allow for scarless wound healing in a murine incisional wound model. Wounds were analyzed at 1-90 days postwounding for effects on scar formation, inflammatory response, and biomechanical properties. Ad-IL-10 reconstitutes a permissive environment for scarless healing as shown by reconstitution of a normal dermal reticular collagen pattern and distribution of dermal elements. Compared with controls, Ad-IL-10 treated wounds showed reduced inflammatory response and no difference in biomechanical parameters. Therefore, overexpression of IL-10 in postnatal wounds results in a permissive environment for scarless wound repair, possibly by replicating a fetal wound environment.


Assuntos
Cicatriz/imunologia , Interleucina-10/biossíntese , Pele/imunologia , Cicatrização/imunologia , Ferimentos e Lesões/imunologia , Adenoviridae , Animais , Fenômenos Biomecânicos , Cicatriz/etiologia , Modelos Animais de Doenças , Feminino , Feto/imunologia , Vetores Genéticos , Humanos , Imuno-Histoquímica , Recém-Nascido , Camundongos , Camundongos Endogâmicos C57BL , Gravidez , Fenômenos Fisiológicos da Pele/imunologia , Transgenes
19.
J Craniofac Surg ; 15(6): 922-7; discussion 928-9, 2004 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-15547375

RESUMO

Male predominance in metopic and sagittal craniosynostosis and in nonsynostotic plagiocephaly suggests a role for circulating androgens in early craniofacial development. Androgens have been documented to play an important role in postnatal skeletal growth, and the androgen receptor has been recently demonstrated in human and rat osteoblast-like cell lines and in human long bones. The purpose of this study was to describe the expression of androgen receptor in the fetal craniofacial skeleton. The heads of E18 fetal CD-1 male and female mice were fixed in 10% formalin, decalcified, and embedded in paraffin. Four- to 6-mum coronal and sagittal sections were stained with a monoclonal antibody specific to androgen receptor, which was detected by an avidinbiotin conjugate and peroxidase system. The sections were then examined for androgen receptor expression patterns. Strong androgen receptor immunoreactivity was observed in the dura mater of developing fetuses. Androgen receptor expression was also noted in cells lining the osteogenic fronts and in calvarial osteoblasts. Similar androgen receptor expression patterns were found in male and female mice. Androgen receptor is abundantly expressed in fetal dura mater and calvarial bone. This study confirms the presence of androgen receptor in the murine fetal craniofacial skeleton, suggesting a potential role for the anabolic effects of androgens in the developing craniofacial skeleton.


Assuntos
Suturas Cranianas/embriologia , Craniossinostoses/metabolismo , Dura-Máter/embriologia , Receptores Androgênicos/biossíntese , Crânio/embriologia , Androgênios/metabolismo , Animais , Suturas Cranianas/metabolismo , Craniossinostoses/embriologia , Dura-Máter/metabolismo , Feminino , Desenvolvimento Fetal , Técnicas Imunoenzimáticas , Masculino , Camundongos , Camundongos Endogâmicos , Osteoblastos/metabolismo , Crânio/metabolismo
20.
Ann Plast Surg ; 49(1): 33-8; discussion 38, 2002 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-12142592

RESUMO

The potential for growth restriction has limited the use of alloplastic materials for reconstruction of the growing craniofacial skeleton. A calcium phosphate cement that has been introduced recently for craniofacial reconstruction crystallizes in situ into a substance that resembles more closely the mineral phase of bone, thereby offering the potential for enhanced bioresorption and osteoconductivity. The purpose of these experiments was to assess quantitatively craniofacial growth after reconstruction of frontal craniectomy defects in skeletally immature animals with this calcium phosphate bone mineral substitute. To simulate the calvarial defects that result from unilateral fronto-orbital advancement procedures, unilateral frontal bone flaps were removed in 3-week-old female Yorkshire piglets. The bone flaps were trimmed medially and posteriorly, and were then reattached to the supraorbital ridge. The resulting 5-mm gap between the frontal bone flap and the native bone was either filled with Norian CRS bone cement (N = 3) or left empty (N = 3). After 90 days, the animals were killed and the skulls were harvested and cleared. Direct craniometric measurements were performed on the prepared dry skulls to assess craniofacial growth in all dimensions. Extensive remodeling was observed within defects treated with the calcium phosphate cement, with complete or near-complete replacement of the cement by host bone, resulting in a solid bony union. Direct craniometric measurements revealed no differences in craniofacial growth in any dimension between the operated and unoperated sides of the cranium in either group. These studies demonstrate that craniofacial growth is not restricted after reconstruction of frontal craniectomy defects with carbonated calcium phosphate cement in skeletally immature animals. The remodeling capacity of this material offers promise for its safe use in reconstruction of the growing calvarium.


Assuntos
Cimentos Ósseos/uso terapêutico , Fosfatos de Cálcio/uso terapêutico , Anormalidades Craniofaciais/cirurgia , Ossos Faciais/cirurgia , Procedimentos de Cirurgia Plástica/métodos , Fraturas Cranianas/cirurgia , Crânio/cirurgia , Animais , Regeneração Óssea/fisiologia , Traumatismos Craniocerebrais/cirurgia , Ossos Faciais/crescimento & desenvolvimento , Modelos Animais , Crânio/crescimento & desenvolvimento , Suínos
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