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2.
Pediatr Rheumatol Online J ; 20(1): 107, 2022 11 25.
Artigo em Inglês | MEDLINE | ID: mdl-36434731

RESUMO

BACKGROUND: Children with juvenile idiopathic arthritis (JIA) who achieve a drug free remission often experience a flare of their disease requiring either intraarticular steroids (IAS) or systemic treatment with disease modifying anti-rheumatic drugs (DMARDs). IAS offer an opportunity to recapture disease control and avoid exposure to side effects from systemic immunosuppression. We examined a cohort of patients treated with IAS after drug free remission and report the probability of restarting systemic treatment within 12 months. METHODS: We analyzed a cohort of patients from the Childhood Arthritis and Rheumatology Research Alliance (CARRA) Registry who received IAS for a flare after a period of drug free remission. Historical factors and clinical characteristics and of the patients including data obtained at the time of treatment were analyzed. RESULTS: We identified 46 patients who met the inclusion criteria. Of those with follow up data available 49% had restarted systemic treatment 6 months after IAS injection and 70% had restarted systemic treatment at 12 months. The proportion of patients with prior use of a biologic DMARD was the only factor that differed between patients who restarted systemic treatment those who did not, both at 6 months (79% vs 35%, p < 0.01) and 12 months (81% vs 33%, p < 0.05). CONCLUSION: While IAS are an option for all patients who flare after drug free remission, it may not prevent the need to restart systemic treatment. Prior use of a biologic DMARD may predict lack of success for IAS. Those who previously received methotrexate only, on the other hand, are excellent candidates for IAS.


Assuntos
Antirreumáticos , Artrite Juvenil , Produtos Biológicos , Reumatologia , Humanos , Criança , Artrite Juvenil/tratamento farmacológico , Antirreumáticos/uso terapêutico , Sistema de Registros , Esteroides/uso terapêutico , Produtos Biológicos/uso terapêutico
3.
Arthritis Rheumatol ; 74(4): 570-585, 2022 04.
Artigo em Inglês | MEDLINE | ID: mdl-35233961

RESUMO

OBJECTIVE: To provide recommendations for the management of juvenile idiopathic arthritis (JIA) with a focus on nonpharmacologic therapies, medication monitoring, immunizations, and imaging, irrespective of JIA phenotype. METHODS: We developed clinically relevant Patient/Population, Intervention, Comparison, and Outcomes questions. After conducting a systematic literature review, the Grading of Recommendations Assessment, Development and Evaluation approach was used to rate the quality of evidence (high, moderate, low, or very low). A Voting Panel including clinicians and patients/caregivers achieved consensus on the direction (for or against) and strength (strong or conditional) of recommendations. RESULTS: Recommendations in this guideline include the use of physical therapy and occupational therapy interventions; a healthy, well-balanced, age-appropriate diet; specific laboratory monitoring for medications; widespread use of immunizations; and shared decision-making with patients/caregivers. Disease management for all patients with JIA is addressed with respect to nonpharmacologic therapies, medication monitoring, immunizations, and imaging. Evidence for all recommendations was graded as low or very low in quality. For that reason, more than half of the recommendations are conditional. CONCLUSION: This clinical practice guideline complements the 2019 American College of Rheumatology JIA and uveitis guidelines, which addressed polyarthritis, sacroiliitis, enthesitis, and uveitis, and a concurrent 2021 guideline on oligoarthritis, temporomandibular arthritis, and systemic JIA. It serves as a tool to support clinicians, patients, and caregivers in decision-making. The recommendations take into consideration the severity of both articular and nonarticular manifestations as well as patient quality of life. Although evidence is generally low quality and many recommendations are conditional, the inclusion of caregivers and patients in the decision-making process strengthens the relevance and applicability of the guideline. It is important to remember that these are recommendations. Clinical decisions, as always, should be made by the treating clinician and patient/caregiver.


Assuntos
Antirreumáticos , Artrite Juvenil , Reumatologia , Uveíte , Antirreumáticos/uso terapêutico , Artrite Juvenil/tratamento farmacológico , Artrite Juvenil/terapia , Glucocorticoides/uso terapêutico , Humanos , Imunização , Qualidade de Vida , Estados Unidos , Uveíte/tratamento farmacológico
4.
Arthritis Care Res (Hoboken) ; 74(4): 521-537, 2022 04.
Artigo em Inglês | MEDLINE | ID: mdl-35233986

RESUMO

OBJECTIVE: To provide updated guidelines for pharmacologic management of juvenile idiopathic arthritis (JIA), focusing on treatment of oligoarthritis, temporomandibular joint (TMJ) arthritis, and systemic JIA with and without macrophage activation syndrome. Recommendations regarding tapering and discontinuing treatment in inactive systemic JIA are also provided. METHODS: We developed clinically relevant Patient/Population, Intervention, Comparison, and Outcomes questions. After conducting a systematic literature review, the Grading of Recommendations Assessment, Development and Evaluation approach was used to rate the quality of evidence (high, moderate, low, or very low). A Voting Panel including clinicians and patients/caregivers achieved consensus on the direction (for or against) and strength (strong or conditional) of recommendations. RESULTS: Similar to those published in 2019, these JIA recommendations are based on clinical phenotypes of JIA, rather than a specific classification schema. This guideline provides recommendations for initial and subsequent treatment of JIA with oligoarthritis, TMJ arthritis, and systemic JIA as well as for tapering and discontinuing treatment in subjects with inactive systemic JIA. Other aspects of disease management, including factors that influence treatment choice and medication tapering, are discussed. Evidence for all recommendations was graded as low or very low in quality. For that reason, more than half of the recommendations are conditional. CONCLUSION: This clinical practice guideline complements the 2019 American College of Rheumatology JIA and uveitis guidelines, which addressed polyarthritis, sacroiliitis, enthesitis, and uveitis. It serves as a tool to support clinicians, patients, and caregivers in decision-making. The recommendations take into consideration the severity of both articular and nonarticular manifestations as well as patient quality of life. Although evidence is generally low quality and many recommendations are conditional, the inclusion of caregivers and patients in the decision-making process strengthens the relevance and applicability of the guideline. It is important to remember that these are recommendations. Clinical decisions, as always, should be made by the treating clinician and patient/caregiver.


Assuntos
Antirreumáticos , Artrite Juvenil , Reumatologia , Transtornos da Articulação Temporomandibular , Uveíte , Antirreumáticos/uso terapêutico , Artrite Juvenil/diagnóstico , Artrite Juvenil/tratamento farmacológico , Glucocorticoides/uso terapêutico , Humanos , Qualidade de Vida , Articulação Temporomandibular , Transtornos da Articulação Temporomandibular/diagnóstico , Transtornos da Articulação Temporomandibular/tratamento farmacológico , Estados Unidos , Uveíte/tratamento farmacológico
5.
Arthritis Care Res (Hoboken) ; 74(4): 505-520, 2022 04.
Artigo em Inglês | MEDLINE | ID: mdl-35233989

RESUMO

OBJECTIVE: To provide recommendations for the management of juvenile idiopathic arthritis (JIA) with a focus on nonpharmacologic therapies, medication monitoring, immunizations, and imaging, irrespective of JIA phenotype. METHODS: We developed clinically relevant Patient/Population, Intervention, Comparison, and Outcomes questions. After conducting a systematic literature review, the Grading of Recommendations Assessment, Development and Evaluation approach was used to rate the quality of evidence (high, moderate, low, or very low). A Voting Panel including clinicians and patients/caregivers achieved consensus on the direction (for or against) and strength (strong or conditional) of recommendations. RESULTS: Recommendations in this guideline include the use of physical therapy and occupational therapy interventions; a healthy, well-balanced, age-appropriate diet; specific laboratory monitoring for medications; widespread use of immunizations; and shared decision-making with patients/caregivers. Disease management for all patients with JIA is addressed with respect to nonpharmacologic therapies, medication monitoring, immunizations, and imaging. Evidence for all recommendations was graded as low or very low in quality. For that reason, more than half of the recommendations are conditional. CONCLUSION: This clinical practice guideline complements the 2019 American College of Rheumatology JIA and uveitis guidelines, which addressed polyarthritis, sacroiliitis, enthesitis, and uveitis, and a concurrent 2021 guideline on oligoarthritis, temporomandibular arthritis, and systemic JIA. It serves as a tool to support clinicians, patients, and caregivers in decision-making. The recommendations take into consideration the severity of both articular and nonarticular manifestations as well as patient quality of life. Although evidence is generally low quality and many recommendations are conditional, the inclusion of caregivers and patients in the decision-making process strengthens the relevance and applicability of the guideline. It is important to remember that these are recommendations. Clinical decisions, as always, should be made by the treating clinician and patient/caregiver.


Assuntos
Antirreumáticos , Artrite Juvenil , Reumatologia , Uveíte , Antirreumáticos/uso terapêutico , Artrite Juvenil/tratamento farmacológico , Artrite Juvenil/terapia , Glucocorticoides/uso terapêutico , Humanos , Imunização , Qualidade de Vida , Estados Unidos , Uveíte/tratamento farmacológico
6.
Arthritis Rheumatol ; 74(4): 553-569, 2022 04.
Artigo em Inglês | MEDLINE | ID: mdl-35233993

RESUMO

OBJECTIVE: To provide updated guidelines for pharmacologic management of juvenile idiopathic arthritis (JIA), focusing on treatment of oligoarthritis, temporomandibular joint (TMJ) arthritis, and systemic JIA with and without macrophage activation syndrome. Recommendations regarding tapering and discontinuing treatment in inactive systemic JIA are also provided. METHODS: We developed clinically relevant Patient/Population, Intervention, Comparison, and Outcomes questions. After conducting a systematic literature review, the Grading of Recommendations Assessment, Development and Evaluation approach was used to rate the quality of evidence (high, moderate, low, or very low). A Voting Panel including clinicians and patients/caregivers achieved consensus on the direction (for or against) and strength (strong or conditional) of recommendations. RESULTS: Similar to those published in 2019, these JIA recommendations are based on clinical phenotypes of JIA, rather than a specific classification schema. This guideline provides recommendations for initial and subsequent treatment of JIA with oligoarthritis, TMJ arthritis, and systemic JIA as well as for tapering and discontinuing treatment in subjects with inactive systemic JIA. Other aspects of disease management, including factors that influence treatment choice and medication tapering, are discussed. Evidence for all recommendations was graded as low or very low in quality. For that reason, more than half of the recommendations are conditional. CONCLUSION: This clinical practice guideline complements the 2019 American College of Rheumatology JIA and uveitis guidelines, which addressed polyarthritis, sacroiliitis, enthesitis, and uveitis. It serves as a tool to support clinicians, patients, and caregivers in decision-making. The recommendations take into consideration the severity of both articular and nonarticular manifestations as well as patient quality of life. Although evidence is generally low quality and many recommendations are conditional, the inclusion of caregivers and patients in the decision-making process strengthens the relevance and applicability of the guideline. It is important to remember that these are recommendations. Clinical decisions, as always, should be made by the treating clinician and patient/caregiver.


Assuntos
Artrite Juvenil , Reumatologia , Transtornos da Articulação Temporomandibular , Uveíte , Artrite Juvenil/tratamento farmacológico , Humanos , Qualidade de Vida , Articulação Temporomandibular , Transtornos da Articulação Temporomandibular/tratamento farmacológico , Estados Unidos , Uveíte/tratamento farmacológico
7.
Front Sociol ; 6: 755072, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34778445

RESUMO

The Association of Southeastern Biologists was founded in 1937 with the goal of increasing the contact and collaboration between scientists in the southeastern United States (US). With the exception of two years during World War II and one year during the COVID-19 pandemic, the Association has met annually to promote research and education in the biological sciences by providing a student-friendly networking environment. In recent years, the Association has placed an increased focus on diversity, equity, and inclusion among elected and appointed leaders, among participants in the annual meeting, and in the development of funding and other opportunities for students. This work prompted us to review the history of our Association, including periods of racial segregation and inequity, and focus on our current efforts to promote access and inclusion by students and scientists from myriad underrepresented groups. In so doing, the past provides us with the opportunity to cast a vision for the future of the Association. In this paper, we seek to share the journey of the Association of Southeastern Biologists in this regard so that we may be transparent, exposing the missteps and amplifying the successes of our organization. We envision this work as a first step toward creating a more open and inclusive scientific community for the future.

8.
Arthritis rheumatol. (Malden. Online) ; 71(6): 864-877, 6, June 2019.
Artigo em Inglês | BIGG - guias GRADE | ID: biblio-1087479

RESUMO

To develop recommendations for the screening, monitoring, and treatment of uveitis in children with juvenile idiopathic arthritis (JIA).Methods. Pediatric rheumatologists, ophthalmologists with expertise in uveitis, patient representatives, and methodologists generated key clinical questions to be addressed by this guideline. This was followed by a system-atic literature review and rating of the available evidence according to the GRADE (Grading of Recommendations Assessment, Development and Evaluation). A group consensus process was used to compose the nal recommendations and grade their strength as conditional or strong. Due to a lack of literature with good quality of evidence, recommendations were formulated on the basis of available evidence and a consensus expert opinion. Regular ophthalmic screening of children with JIA is recom-mended because of the risk of uveitis, and the frequency of screening should be based on individual risk factors.


Assuntos
Artrite Juvenil/diagnóstico , Artrite Juvenil/prevenção & controle , Artrite Juvenil/terapia , Uveíte/diagnóstico , Uveíte/terapia , Antígeno HLA-B27
9.
Arthritis rheumatol. (Malden. Online) ; 71(6): [1-18], June 2019.
Artigo em Inglês | BIGG - guias GRADE | ID: biblio-1094962

RESUMO

To develop treatment recommendations for children with juvenile idiopathic arthritis manifesting as non- systemic polyarthritis, sacroiliitis, or enthesitis.Methods. The Patient/Population, Intervention, Comparison, and Outcomes (PICO) questions were developed and recined by members of the guideline development teams. A systematic review was conducted to compile evidence for the benefits and harms associated with treatments for these conditions. GRADE (Grading of Recommendations Assessment, Development and Evaluation) methodology was used to rate the quality of evidence. A group consensus process was conducted among the Voting Panel to generate the nal recommendations and grade their strength. A Parent and Patient Panel used a similar consensus approach to provide patient/caregiver preferences for key questions. Thirty- nine recommendations were developed (8 strong and 31 conditional). The quality of supporting evidence was very low or low for 90% of the recommendations. Recommendations are provided for the use of nonsteroidal antiinflammatory drugs, disease- modifying antirheumatic drugs, biologics, and intraarticular and oral glucocorticoids. Recommendations for the use of physical and occupational therapy are also provided. Specific recommendations for polyarthritis address general medication use, initial and subsequent treatment, and adjunctive therapies. Good disease control, with therapeutic escalation to achieve low disease activity, was recommended. The sacroiliitis and enthesitis recommendations primarily address initial therapy and adjunctive therapies. This guideline provides direction for clinicians, caregivers, and patients making treatment decisions. Clinicians, caregivers, and patients should use a shared decision- making process that accounts for patients' values, preferences, and comorbidities. These recommendations should not be used to limit or deny access to therapies.


Assuntos
Humanos , Adolescente , Artrite Juvenil/diagnóstico , Artrite Juvenil/enfermagem , Artrite Juvenil/prevenção & controle , Especialidade de Fisioterapia/instrumentação , Artrite/complicações , Adolescente/fisiologia , Medicina Baseada em Evidências/métodos
10.
Arthritis Rheumatol ; 71(6): 864-877, 2019 06.
Artigo em Inglês | MEDLINE | ID: mdl-31021511

RESUMO

OBJECTIVE: To develop recommendations for the screening, monitoring, and treatment of uveitis in children with juvenile idiopathic arthritis (JIA). METHODS: Pediatric rheumatologists, ophthalmologists with expertise in uveitis, patient representatives, and methodologists generated key clinical questions to be addressed by this guideline. This was followed by a systematic literature review and rating of the available evidence according to the GRADE (Grading of Recommendations Assessment, Development and Evaluation) methodology. A group consensus process was used to compose the final recommendations and grade their strength as conditional or strong. RESULTS: Due to a lack of literature with good quality of evidence, recommendations were formulated on the basis of available evidence and a consensus expert opinion. Regular ophthalmic screening of children with JIA is recommended because of the risk of uveitis, and the frequency of screening should be based on individual risk factors. Regular ophthalmic monitoring of children with uveitis is recommended, and intervals should be based on ocular examination findings and treatment regimen. Ophthalmic monitoring recommendations were strong primarily because of concerns of vision-threatening complications of uveitis with infrequent monitoring. Topical glucocorticoids should be used as initial treatment to achieve control of inflammation. Methotrexate and the monoclonal antibody tumor necrosis factor inhibitors adalimumab and infliximab are recommended when systemic treatment is needed for the management of uveitis. The timely addition of nonbiologic and biologic drugs is recommended to maintain uveitis control in children who are at continued risk of vision loss. CONCLUSION: This guideline provides direction for clinicians and patients/parents making decisions on the screening, monitoring, and management of children with JIA and uveitis, using GRADE methodology and informed by a consensus process with input from rheumatology and ophthalmology experts, current literature, and patient/parent preferences and values.


Assuntos
Antirreumáticos/uso terapêutico , Artrite Juvenil/terapia , Glucocorticoides/uso terapêutico , Metotrexato/uso terapêutico , Inibidores do Fator de Necrose Tumoral/uso terapêutico , Uveíte/tratamento farmacológico , Adalimumab/uso terapêutico , Administração Oftálmica , Artrite Juvenil/complicações , Humanos , Infliximab/uso terapêutico , Programas de Rastreamento , Uveíte/diagnóstico , Uveíte/etiologia
11.
Arthritis Care Res (Hoboken) ; 71(6): 717-734, 2019 06.
Artigo em Inglês | MEDLINE | ID: mdl-31021516

RESUMO

OBJECTIVE: To develop treatment recommendations for children with juvenile idiopathic arthritis manifesting as non-systemic polyarthritis, sacroiliitis, or enthesitis. METHODS: The Patient/Population, Intervention, Comparison, and Outcomes (PICO) questions were developed and refined by members of the guideline development teams. A systematic review was conducted to compile evidence for the benefits and harms associated with treatments for these conditions. GRADE (Grading of Recommendations Assessment, Development and Evaluation) methodology was used to rate the quality of evidence. A group consensus process was conducted among the Voting Panel to generate the final recommendations and grade their strength. A Parent and Patient Panel used a similar consensus approach to provide patient/caregiver preferences for key questions. RESULTS: Thirty-nine recommendations were developed (8 strong and 31 conditional). The quality of supporting evidence was very low or low for 90% of the recommendations. Recommendations are provided for the use of nonsteroidal antiinflammatory drugs, disease-modifying antirheumatic drugs, biologics, and intraarticular and oral glucocorticoids. Recommendations for the use of physical and occupational therapy are also provided. Specific recommendations for polyarthritis address general medication use, initial and subsequent treatment, and adjunctive therapies. Good disease control, with therapeutic escalation to achieve low disease activity, was recommended. The sacroiliitis and enthesitis recommendations primarily address initial therapy and adjunctive therapies. CONCLUSION: This guideline provides direction for clinicians, caregivers, and patients making treatment decisions. Clinicians, caregivers, and patients should use a shared decision-making process that accounts for patients' values, preferences, and comorbidities. These recommendations should not be used to limit or deny access to therapies.


Assuntos
Antirreumáticos/uso terapêutico , Artrite Juvenil/terapia , Entesopatia/terapia , Terapia Ocupacional , Modalidades de Fisioterapia , Reumatologia/normas , Sacroileíte/terapia , Anti-Inflamatórios não Esteroides/uso terapêutico , Antirreumáticos/efeitos adversos , Artrite Juvenil/diagnóstico , Artrite Juvenil/epidemiologia , Produtos Biológicos/uso terapêutico , Consenso , Entesopatia/diagnóstico , Entesopatia/epidemiologia , Glucocorticoides/uso terapêutico , Humanos , Fatores de Risco , Sacroileíte/diagnóstico , Sacroileíte/epidemiologia , Resultado do Tratamento
12.
Arthritis Rheumatol ; 71(6): 846-863, 2019 06.
Artigo em Inglês | MEDLINE | ID: mdl-31021537

RESUMO

OBJECTIVE: To develop treatment recommendations for children with juvenile idiopathic arthritis manifesting as non-systemic polyarthritis, sacroiliitis, or enthesitis. METHODS: The Patient/Population, Intervention, Comparison, and Outcomes (PICO) questions were developed and refined by members of the guideline development teams. A systematic review was conducted to compile evidence for the benefits and harms associated with treatments for these conditions. GRADE (Grading of Recommendations Assessment, Development and Evaluation) methodology was used to rate the quality of evidence. A group consensus process was conducted among the Voting Panel to generate the final recommendations and grade their strength. A Parent and Patient Panel used a similar consensus approach to provide patient/caregiver preferences for key questions. RESULTS: Thirty-nine recommendations were developed (8 strong and 31 conditional). The quality of supporting evidence was very low or low for 90% of the recommendations. Recommendations are provided for the use of nonsteroidal antiinflammatory drugs, disease-modifying antirheumatic drugs, biologics, and intraarticular and oral glucocorticoids. Recommendations for the use of physical and occupational therapy are also provided. Specific recommendations for polyarthritis address general medication use, initial and subsequent treatment, and adjunctive therapies. Good disease control, with therapeutic escalation to achieve low disease activity, was recommended. The sacroiliitis and enthesitis recommendations primarily address initial therapy and adjunctive therapies. CONCLUSION: This guideline provides direction for clinicians, caregivers, and patients making treatment decisions. Clinicians, caregivers, and patients should use a shared decision-making process that accounts for patients' values, preferences, and comorbidities. These recommendations should not be used to limit or deny access to therapies.


Assuntos
Anti-Inflamatórios não Esteroides/uso terapêutico , Antirreumáticos/uso terapêutico , Artrite Juvenil/terapia , Entesopatia/terapia , Glucocorticoides/uso terapêutico , Sacroileíte/terapia , Inibidores do Fator de Necrose Tumoral/uso terapêutico , Artrite/terapia , Humanos , Injeções Intra-Articulares , Terapia Ocupacional , Modalidades de Fisioterapia
13.
Arthritis Care Res (Hoboken) ; 71(6): 703-716, 2019 06.
Artigo em Inglês | MEDLINE | ID: mdl-31021540

RESUMO

OBJECTIVE: To develop recommendations for the screening, monitoring, and treatment of uveitis in children with juvenile idiopathic arthritis (JIA). METHODS: Pediatric rheumatologists, ophthalmologists with expertise in uveitis, patient representatives, and methodologists generated key clinical questions to be addressed by this guideline. This was followed by a systematic literature review and rating of the available evidence according to the GRADE (Grading of Recommendations Assessment, Development and Evaluation) methodology. A group consensus process was used to compose the final recommendations and grade their strength as conditional or strong. RESULTS: Due to a lack of literature with good quality of evidence, recommendations were formulated on the basis of available evidence and a consensus expert opinion. Regular ophthalmic screening of children with JIA is recommended because of the risk of uveitis, and the frequency of screening should be based on individual risk factors. Regular ophthalmic monitoring of children with uveitis is recommended, and intervals should be based on ocular examination findings and treatment regimen. Ophthalmic monitoring recommendations were strong primarily because of concerns of vision-threatening complications of uveitis with infrequent monitoring. Topical glucocorticoids should be used as initial treatment to achieve control of inflammation. Methotrexate and the monoclonal antibody tumor necrosis factor inhibitors adalimumab and infliximab are recommended when systemic treatment is needed for the management of uveitis. The timely addition of nonbiologic and biologic drugs is recommended to maintain uveitis control in children who are at continued risk of vision loss. CONCLUSION: This guideline provides direction for clinicians and patients/parents making decisions on the screening, monitoring, and management of children with JIA and uveitis, using GRADE methodology and informed by a consensus process with input from rheumatology and ophthalmology experts, current literature, and patient/parent preferences and values.


Assuntos
Artrite Juvenil/diagnóstico , Artrite Juvenil/tratamento farmacológico , Produtos Biológicos/uso terapêutico , Glucocorticoides/uso terapêutico , Imunossupressores/uso terapêutico , Oftalmologia/normas , Reumatologia/normas , Inibidores do Fator de Necrose Tumoral/uso terapêutico , Uveíte/diagnóstico , Uveíte/tratamento farmacológico , Artrite Juvenil/epidemiologia , Produtos Biológicos/efeitos adversos , Consenso , Glucocorticoides/efeitos adversos , Humanos , Imunossupressores/efeitos adversos , Valor Preditivo dos Testes , Fatores de Risco , Resultado do Tratamento , Inibidores do Fator de Necrose Tumoral/efeitos adversos , Uveíte/epidemiologia
15.
J Wildl Dis ; 47(1): 255-8, 2011 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-21270018

RESUMO

Laboratory experiments have documented the effects of hormones and endocrine-disrupting compounds on mammary development in mammals. However, few observations of mammary hyperplasia have been presented for wild rodents. We describe hyperplastic mammary glands in a wild-caught white-footed mouse (Peromyscus leucopus) from an area contaminated with heavy metals.


Assuntos
Exposição Ambiental , Neoplasias Mamárias Animais/induzido quimicamente , Metais Pesados/toxicidade , Peromyscus , Animais , Feminino , Oklahoma
16.
Ecotoxicology ; 16(4): 353-61, 2007 May.
Artigo em Inglês | MEDLINE | ID: mdl-17364238

RESUMO

Tar Creek Superfund Site (TCSFS) was heavily mined from the 1890s to 1970 and currently is contaminated with lead, zinc, and cadmium. Flow cytometry (FCM) was used to measure variation in nuclear DNA content of red blood cells collected from Trachemys scripta living within TCSFS and reference sites, Lake Carl Blackwell (LCB) and Sequoyah National Wildlife Refuge (SNWR). We also used atomic absorption spectrometry to measure Pb in blood and carapace and Cd in blood samples of turtles from TCSFS and SNWR. Mean coefficients of variation around the G(1) peak ranged from 5.33 to 5.48 and showed no significant difference between contaminated and reference populations; however, there was a significantly higher frequency of aneuploidy at TCSFS when compared with both reference populations. Blood Pb levels were not significantly different between TCSFS and SNWR populations. Pb levels in carapace samples did not differ significantly between sites; however, Pb levels were higher in carapace than blood for both populations. Blood Cd was significantly higher in animals at TCSFS than SNWR.


Assuntos
Cádmio/toxicidade , Citometria de Fluxo/métodos , Chumbo/toxicidade , Metais Pesados/toxicidade , Tartarugas/genética , Poluentes Químicos da Água/toxicidade , Aneuploidia , Animais , Cádmio/análise , Cádmio/sangue , Conservação dos Recursos Naturais , DNA/análise , Feminino , Água Doce , Chumbo/análise , Chumbo/sangue , Masculino , Metais Pesados/análise , Metais Pesados/sangue , Mineração , Poluentes Químicos da Água/análise , Poluentes Químicos da Água/sangue
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