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1.
J Natl Med Assoc ; 107(2): 4-17, 2015 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-27269485

RESUMO

We thank Cathy Eames (Director, Library Services, Detroit Medical Center) for valuable input and assistance with the search strategy. Funding for this research was supported by a grant from Children's Hospital of Michigan Research Foundation (Principal Investigator: Terrance L. Albrecht, Ph.D.). BACKGROUND: Patient- and family-centered care (PFCC) has the potential to address disparities in access and quality of healthcare for African American pediatric asthma patients by accommodating and responding to the individual needs of patients and families. STUDY OBJECTIVES: To identify and evaluate research on the impact of family-provider interventions that reflect elements of PFCC on reducing disparities in the provision, access, quality, and use of healthcare services for African American pediatric asthma patients. METHODS: Electronic searches were conducted using PubMed, CINAHL, and Psyclnfo databases. Inclusion criteria were peer-reviewed, English-language articles on family-provider interventions that (a) reflected one or more elements of PFCC and (b) addressed healthcare disparities in urban African American pediatric asthma patients (≤18years). RESULTS: Thirteen interventions or programs were identified and reviewed. Designs included randomized clinical trials, controlled clinical trials, pre- and post-interventions, and program evaluations. CONCLUSIONS: Few interventions were identified as explicitly providing PFCC in a pediatric asthma context, possibly because of a lack of consensus on what constitutes PFCC in practice. Some studies have demonstrated that PFCC improves satisfaction and communication during clinical interactions. More empirical research is needed to understand whether PFCC interventions reduce care disparities and improve the provision, access, and quality of asthma healthcare for urban African American children. ELECTRONIC DATABASES USED: PubMed, CINAHL, and Psyclnfo ABBREVIATIONS: AA-African American: CCT-Controlled clinical trial; ED-Emergency Department; ETS-Environmental tobacco smoke; FCC- Family Centered Care; PFCC-Patient and Family Centered Care; RCT- Randomized, controlled trial.

2.
Genet Mol Res ; 14(1): 244-52, 2015 Jan 16.
Artigo em Inglês | MEDLINE | ID: mdl-25729956

RESUMO

Acyl sugars present in the tomato Solanum lycopersicum 'LA-716' accession confer good levels of resistance to arthropod pests. The objective of the present study was to select F2 plants from the interspecific cross Solanum pennellii 'LA-716' x Solanum lycopersicum 'Redenção' to assess resistance to spider mites (Tetranychus urticae) based on the leaf acyl sugar content and repellence tests. Four genotypes were selected with high leaflet acyl sugar content (RVTA-2010 pl#31, RVTA-2010 pl#75, RVTA-2010 pl#83, and RVTA-2010 pl#94), and an additional three genotypes with low acyl sugar content were also selected (RVTA-2010 pl#33, RVTA-2010 pl#39, and RVTA-2010 pl#73). The results from the in vivo tests used to confirm the selection of plants resistant to mites indicated that the genotypes with high acyl sugars content did not differ from the resistant parent LA-716. The negative correlation between acyl sugar content and the distance run by the mite along the leaflet surface confirmed the association between high and low allelochemical content and resistance. The medium degree of dominance (MDD) was estimated (MDD = -0.83), indicating that the high acyl sugar content was due to incomplete dominance of a recessive allele. A value of 81.85% was found for the broad sense heritability estimate, which suggests that most among-plant variation in the F2 generation is genetically based. Furthermore, 0.69 genes were estimated, which presumably confirms monogenic inheritance. Thus, indirect selection was an efficient method used to obtain industrial tomato plants that are resistant to spider mites.


Assuntos
Resistência à Doença/genética , Doenças das Plantas/genética , Doenças das Plantas/parasitologia , Seleção Genética , Solanum lycopersicum/genética , Solanum lycopersicum/parasitologia , Tetranychidae/fisiologia , Animais , Carboidratos/análise , Distribuição de Qui-Quadrado , Cruzamentos Genéticos , Genótipo
3.
Ann Hematol ; 93(6): 965-75, 2014 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-24682421

RESUMO

This study aims to determine the maximum tolerated dose (MTD) of clofarabine combined with the EORTC-GIMEMA 3 + 10 induction regimen (idarubicin + cytosine arabinoside) in adults with untreated acute myelogenous leukemia or high-risk myelodysplastic syndrome. In this phase I trial, 25 patients (median age 56 years) received 5 days of clofarabine as 1-h infusion (arm A) or push injection (arm B) at the dose level of 5 × 10 or 5 × 15 mg/m(2)/day in an algorithmic dose escalation 3 + 3 design. A consolidation course (intermediate dose cytosine arabinoside, idarubicin) was planned for patients in complete remission (CR). Primary endpoint was safety and tolerance as measured by dose limiting toxicity (DLT); secondary endpoints were response rate, other grade III/IV toxicities, and hematological recovery after induction and consolidation. Five DLTs were observed (in arm A: one DLT at 10 mg/m(2)/day, three at 15 mg/m(2)/day; in arm B: one DLT at 15 mg/m(2)/day). Three patients receiving 15 mg/m(2)/day were withdrawn due to adverse events not classified as DLT. Prolonged hypoplasia was observed in five patients. CR + complete remission with incomplete recovery were achieved in 21 patients (11/12 (92 %) receiving clofarabine 10 mg/m(2)/day; 10/13 (77 %) receiving clofarabine 15 mg/m(2)/day). Clofarabine, 5 × 10 mg/m(2)/day, resulted in one DLT and no early treatment withdrawals. MTD of clofarabine combined with cytosine arabinoside and idarubicin is 5 × 10 mg/m(2)/day.


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Leucemia Mieloide Aguda/tratamento farmacológico , Síndromes Mielodisplásicas/tratamento farmacológico , Nucleotídeos de Adenina/administração & dosagem , Nucleotídeos de Adenina/efeitos adversos , Adulto , Idoso , Protocolos de Quimioterapia Combinada Antineoplásica/administração & dosagem , Protocolos de Quimioterapia Combinada Antineoplásica/efeitos adversos , Arabinonucleosídeos/administração & dosagem , Arabinonucleosídeos/efeitos adversos , Clofarabina , Quimioterapia de Consolidação , Citarabina/administração & dosagem , Citarabina/efeitos adversos , Fadiga/induzido quimicamente , Feminino , Gastroenteropatias/induzido quimicamente , Humanos , Hidroxiureia/uso terapêutico , Hiperbilirrubinemia/induzido quimicamente , Idarubicina/administração & dosagem , Idarubicina/efeitos adversos , Masculino , Pessoa de Meia-Idade , Indução de Remissão , Risco , Resultado do Tratamento
4.
Am J Phys Anthropol ; 141(4): 515-25, 2010 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-19927372

RESUMO

Fossilized footprints contain information about the dynamics of gait, but their interpretation is difficult, as they are the combined result of foot anatomy, gait dynamics, and substrate properties. We explore how footprints are generated in modern humans. Sixteen healthy subjects walked on a solid surface and in a layer of fine-grained sand. In each condition, 3D kinematics of the leg and foot were analyzed for three trials at preferred speed, using an infrared camera system. Additionally, calibrated plantar pressures were recorded. After each trial in sand, the depth of the imprint was measured under specific sites. When walking in sand, subjects showed greater toe clearance during swing and a 7 degrees higher knee yield during stance. Maximal pressure was the most influential factor for footprint depth under the heel. For other foot zones, a combination of factors correlates with imprint depth, with pressure impulse (the pressure-time integral) gaining importance distally, at the metatarsal heads and the hallux. We conclude that footprint topology cannot be related to a single variable, but that different zones of the footprint reflect different aspects of the kinesiology of walking. Therefore, an integrated approach, combining anatomical, kinesiological, and substrate-mechanical insights, is necessary for a correct interpretation.


Assuntos
Pé/anatomia & histologia , Antropologia Forense/métodos , Marcha/fisiologia , Tornozelo/fisiologia , Fenômenos Biomecânicos , Feminino , Fósseis , Humanos , Joelho/fisiologia , Masculino , Pressão , Dióxido de Silício , Adulto Jovem
5.
J Antimicrob Chemother ; 64(6): 1274-81, 2009 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-19841031

RESUMO

OBJECTIVES: Caspofungin was evaluated as first-line monotherapy of invasive aspergillosis (IA) in patients with haematological malignancies and undergoing autologous transplants. METHODS: Adults with proven or probable IA, defined strictly according to EORTC-MSG criteria, were eligible. Those with possible IA were enrolled, but were not evaluable for efficacy unless upgraded to proven/probable disease within 7 days of registration based on investigations performed within 48 h after enrolment. Caspofungin dosage was 70 mg (day 1) followed by 50 mg/day. The primary endpoint was the proportion of patients with complete or partial response at the end of caspofungin therapy in the modified intention to treat (MITT) group; secondary endpoints were response and survival at day 84 and safety. RESULTS: In the MITT group (n = 61), 75% of patients had cancer not in remission (relapsing or refractory), 85% were neutropenic at enrolment and 49% had a Karnofsky score of < or =50. At end of treatment, 1 and 19 patients had complete and partial response, respectively [success rate 33% (20/61)], 9 (15%) achieved stabilization and 31 (51%) had disease progression. One patient was not evaluable. The 6 and 12 week survival rates were 66% (40/61) and 53% (32/60), respectively. Baseline characteristics associated with survival at day 84 were an underlying disease in remission (not relapsing or refractory) and Karnofsky score. Recovery from neutropenia at the end of treatment was also significantly associated with survival. No serious drug-related adverse events or discontinuations due to drug-related adverse events were observed. CONCLUSIONS: Caspofungin provided an observed response rate compatible with the null hypothesis of a true response rate of < or =35%. Underlying disease-related factors had a major impact on results.


Assuntos
Antifúngicos/uso terapêutico , Aspergilose/tratamento farmacológico , Equinocandinas/uso terapêutico , Neoplasias Hematológicas/complicações , Transplante Autólogo/efeitos adversos , Adulto , Idoso , Idoso de 80 Anos ou mais , Antifúngicos/administração & dosagem , Caspofungina , Equinocandinas/administração & dosagem , Feminino , Humanos , Lipopeptídeos , Masculino , Pessoa de Meia-Idade , Análise de Sobrevida , Resultado do Tratamento , Adulto Jovem
6.
Bone Marrow Transplant ; 45(7): 1227-33, 2010 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-20062093

RESUMO

Caspofungin at standard dose was evaluated as first-line monotherapy of mycologically documented probable/proven invasive aspergillosis (IA) (unmodified European Organisation for Research and Treatment of Cancer/Mycosis Study Group criteria) in allogeneic hematopoietic SCT patients. The primary efficacy end point was complete or partial response at end of caspofungin treatment. Response at week 12, survival and safety were additional end points. Enrollment was stopped prematurely because of low accrual, with 42 enrolled and 24 eligible, giving the study a power of 85%. Transplant was from unrelated donors in 16 patients; acute or chronic GVHD was present in 15. In all, 12 patients were neutropenic (<500/microl) at baseline, 10 received steroids and 16 calcineurin inhibitors or sirolimus. Median duration of caspofungin treatment was 24 days. At the end of caspofungin therapy, 10 (42%) patients had complete or partial response (95% confidence interval: 22-63%); 1 (4%) and 12 (50%) had stable and progressing disease, respectively; one was not evaluable. At week 12, eight patients (33%) had complete or partial response. Survival rates at week 6 and 12 were 79 and 50%, respectively. No patient had a drug-related serious adverse event or discontinued because of toxicity. Caspofungin first-line therapy was effective and well tolerated in allogeneic hematopoietic SCT patients with mycologically documented IA.


Assuntos
Aspergilose/tratamento farmacológico , Equinocandinas/administração & dosagem , Transplante de Células-Tronco Hematopoéticas/efeitos adversos , Adulto , Idoso , Antifúngicos/uso terapêutico , Aspergilose/mortalidade , Caspofungina , Quimioterapia Combinada , Efeitos Colaterais e Reações Adversas Relacionados a Medicamentos , Equinocandinas/uso terapêutico , Equinocandinas/toxicidade , Europa (Continente) , Feminino , Doença Enxerto-Hospedeiro , Transplante de Células-Tronco Hematopoéticas/métodos , Transplante de Células-Tronco Hematopoéticas/mortalidade , Humanos , Lipopeptídeos , Masculino , Pessoa de Meia-Idade , Taxa de Sobrevida , Transplante Homólogo , Resultado do Tratamento , Adulto Jovem
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