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1.
J Pain Res ; 8: 799-806, 2015.
Artigo em Inglês | MEDLINE | ID: mdl-26609244

RESUMO

INTRODUCTION: Knee osteoarthritis is associated with persistent joint pain, stiffness, joint deformities, ligament damage, and surrounding muscle atrophy. The complexity of the disease makes treatment difficult. There are no therapeutic drugs available to halt the disease progression, leaving patients dependent on pain medication, anti-inflammatory drugs, or invasive joint replacement surgery. CASE PRESENTATIONS: Four patients with a history of unresolved symptomatic knee osteoarthritis were investigated for the therapeutic outcome of combining an exercise rehabilitation program with intra-articular injections of autologous StroMed (ie, stromal vascular fraction cells concentrated by ultrasonic cavitation from lipoaspirate) and platelet-rich plasma (PRP). The Knee Injury and Osteoarthritis Outcome Score questionnaire (KOOS) was administered along with physical function tests over a 12-month period. The first patient achieved a maximum therapeutic outcome of 100 in all five KOOS subscales (left knee), and 100 for four subscales (right knee). The second patient scored 100 in all five KOOS subscales (left knee), and greater than 84 in all subscales (right knee). Treatment of the third patient resulted in improved outcomes in both knees of >93 for four KOOS subscales, and 60 for the Function in Sport and Recreation subscale. The fourth patient improved to 100 in all five KOOS subscales. In all patients, the physical function "Get-up and Go" test and "Stair Climbing Test" returned to normal (a value of zero). CONCLUSION: This case series indicates that improved outcomes may be obtained when autologous stromal vascular fraction (StroMed) cell therapy is combined with traditional exercise practices and PRP for osteoarthritis. Of the seven joints treated: all patients' scores of pain improved to >96; and quality of life scores to >93. Functional performance measures of mobility returned to normal. This simple treatment appears to be extremely effective for osteoarthritis disorders that have no drug treatment to halt disease progression.

2.
J Med Case Rep ; 8: 237, 2014 Jun 30.
Artigo em Inglês | MEDLINE | ID: mdl-24981130

RESUMO

INTRODUCTION: Chronic migraines and tension-type headaches are debilitating diseases affecting 1.4 to 2.2% of the population with both quality of life and economic implications. To date, the pain associated with migraine and tension-type headaches has been controlled with a range of medications, with varying levels of success. In addition, the side-effect profile of these medications, as well as their potential for addiction, has been a cause for concern for both patients and physicians. CASE PRESENTATIONS: Four women with long histories of migraine or frequent tension-type headache that meet the International Classification of Headache Disorders criteria for Chronic Migraine or Tension-type Headaches were given a systemic treatment(s) of autologous stromal vascular fraction or autologous 'StroMed' isolated from lipoaspirate. StroMed is stromal vascular fraction cells prepared by ultrasonic cavitation. Two of the four patients, both of whom are Arab women aged 40 and 36 years, ceased having migraines after 1 month, for a period of 12 to 18 months. The third patient, a Slavic woman aged 43 years, had a significant decrease in the frequency and severity of migraines with only seven migraines over 18 months. The fourth patient, an Asian woman aged 44 years, obtained a temporary decrease for a period of a month and was retreated 18 months later and has been free of migraines to date for 1 month. Pain medication was typically reduced from prescribed opioid analgesia to non-steroidal anti-inflammatory drugs and paracetamol. CONCLUSIONS: This case series is the first to provide evidence of the efficacy of autologous StroMed and stromal vascular fraction in the treatment of migraine and tension-type headache. The treatment of this disease by stromal vascular fraction adds a new dimension to its clinical applicability and suggests a relatively simple treatment that may help address the symptoms of the disease. Given what is known about the components of the stromal vascular fraction and how they act, the information presented in this case series may also further our knowledge of the etiology and pathophysiology of migraine and tension-type headaches. This treatment is simple, looks to be extremely effective and has been life changing for these patients.


Assuntos
Transplante de Células-Tronco Mesenquimais/métodos , Transtornos de Enxaqueca/terapia , Gordura Subcutânea/citologia , Cefaleia do Tipo Tensional/terapia , Adulto , Doença Crônica , Feminino , Humanos , Células Estromais/transplante , Transplante Autólogo , Resultado do Tratamento
3.
J Biol Chem ; 281(26): 18246-56, 2006 Jun 30.
Artigo em Inglês | MEDLINE | ID: mdl-16636064

RESUMO

Retinoic acid (RA) induces growth arrest, cell death, and differentiation in many human cancer cells in vitro and has entered routine clinical use for the treatment of several human cancer types. One mechanism by which cancer cells evade retinoid-induced effects is through repression of retinoic acid receptor beta (RARbeta) gene transcription. The RA response element beta (betaRARE) is the essential DNA sequence required for retinoid-induced RARbeta transcription. Here we show that the estrogen-responsive B box protein (EBBP), a member of the RING-B box-coiled-coil protein family, is a betaRARE-binding protein. EBBP undergoes serine threonine phosphorylation and enhanced protein stability after RA treatment. Following RA treatment, we also observed increased nuclear EBBP levels in aggregates with the promyelocytic leukemia protein at promyelocytic leukemia nuclear bodies. EBBP enhanced RA-responsive RARbeta transcription in RA-sensitive and -resistant cancer cells, which were resistant to both a histone deacetylase inhibitor and a demethylating agent. EBBP-specific small interfering RNA reduced basal and RA-induced RARbeta expression. EBBP increased betaRARE-transactivating function through its coiled-coil domain. Taken together, our work suggests that EBBP may have a pivotal role in the retinoid anti-cancer signal.


Assuntos
Antineoplásicos/metabolismo , Proteínas de Ligação a DNA/química , Proteínas de Ligação a DNA/metabolismo , Transdução de Sinais/fisiologia , Fatores de Transcrição/química , Fatores de Transcrição/metabolismo , Tretinoína/metabolismo , Sequência de Aminoácidos , Antineoplásicos/farmacologia , Neoplasias da Mama , Divisão Celular/fisiologia , Linhagem Celular Tumoral , Proteínas de Ligação a DNA/genética , Regulação Neoplásica da Expressão Gênica/efeitos dos fármacos , Regulação Neoplásica da Expressão Gênica/fisiologia , Humanos , Neoplasias Pulmonares , Dados de Sequência Molecular , Proteínas de Neoplasias/metabolismo , Neuroblastoma , Proteínas Nucleares/metabolismo , Proteína da Leucemia Promielocítica , Estrutura Terciária de Proteína , RNA Interferente Pequeno , Receptores do Ácido Retinoico/metabolismo , Fatores de Transcrição/genética , Transcrição Gênica , Tretinoína/farmacologia , Proteínas com Motivo Tripartido , Proteínas Supressoras de Tumor/metabolismo , Ubiquitina-Proteína Ligases
4.
Proc Natl Acad Sci U S A ; 101(34): 12664-9, 2004 Aug 24.
Artigo em Inglês | MEDLINE | ID: mdl-15314226

RESUMO

The mechanisms causing persistence of embryonal cells that later give rise to tumors is unknown. One tumorigenic factor in the embryonal childhood tumor neuroblastoma is the MYCN protooncogene. Here we show that normal mice developed neuroblast hyperplasia in paravertebral ganglia at birth that completely regressed by 2 weeks of age. In contrast, ganglia from MYCN transgenic (TH-MYCN) mice demonstrated a marked increase in neuroblast hyperplasia and MycN expression during week 1. Regression of neuroblast hyperplasia was then delayed and incomplete before neuroblastoma tumor formation at 6 and 13 weeks in homo- and hemizygote mice, respectively. Paravertebral neuronal cells cultured from perinatal TH-MYCN mice exhibited 3- to 10-fold resistance to nerve growth factor (NGF) withdrawal, compared with normal mice. Both low- and high-affinity NGF receptors were expressed in perinatal neuroblast hyperplasia but not in neuroblastoma tumor tissue. MYCN transgene amplification was present at low levels in perinatal neuroblast hyperplasia from both homo- and hemizygote TH-MYCN mice. However, only in hemizygous mice did tumor formation correlate with a stepwise increase in the frequency of MYCN amplification. These data suggest that inappropriate perinatal MycN expression in paravertebral ganglia cells from TH-MYCN mice initiated tumorigenesis by altering the physiologic process of neural crest cell deletion. Persisting embryonal neural crest cells underwent further changes, such as MYCN amplification and repression of NGF receptor expression, during tumor progression. Our studies provide a model for studying perinatal factors influencing embryonal tumor initiation.


Assuntos
Carcinoma Embrionário/metabolismo , Amplificação de Genes , Neuroblastoma/metabolismo , Proteínas Nucleares/metabolismo , Proteínas Oncogênicas/metabolismo , Animais , Apoptose/fisiologia , Carcinoma Embrionário/patologia , Técnicas de Cultura , Gânglios Simpáticos/citologia , Gânglios Simpáticos/metabolismo , Gânglios Simpáticos/patologia , Humanos , Camundongos , Camundongos Transgênicos , Proteína Proto-Oncogênica N-Myc , Fator de Crescimento Neural/metabolismo , Neuroblastoma/patologia , Proteínas Nucleares/genética , Proteínas Oncogênicas/genética , Receptores de Fator de Crescimento Neural/metabolismo , Transgenes
5.
Int J Biochem Cell Biol ; 36(5): 771-5, 2004 May.
Artigo em Inglês | MEDLINE | ID: mdl-15061133

RESUMO

N-myc has emerged as a member of a transcriptional regulatory network which impinges directly on the machinery of cell growth and proliferation. Critical during neural crest embryogenesis, N-myc is rapidly down-regulated as tissues become terminally differentiated and growth-arrested. The involvement of N-myc in these fundamental cellular processes necessitates an intricate strategy for its regulation, which is still being elucidated. Deregulated N-myc over-expression has clear transforming ability in vitro and in vivo. The transcriptional target genes responsible for this activity are beginning to be unravelled.


Assuntos
Proteínas Proto-Oncogênicas c-myc/fisiologia , Fatores de Transcrição/fisiologia , Animais , Regulação da Expressão Gênica , Humanos , Camundongos , Crista Neural/embriologia , Estrutura Terciária de Proteína/genética , Proteínas Proto-Oncogênicas c-myc/genética , Proteínas Proto-Oncogênicas c-myc/uso terapêutico , Fatores de Transcrição/genética , Fatores de Transcrição/uso terapêutico
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