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1.
Int J Nurs Stud ; 51(4): 572-81, 2014 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-24054068

RESUMO

BACKGROUND: Meeting the health needs of Sudanese women, especially those living in village areas, is imperative and cannot be accomplished without understanding the cultural perceptions and health behaviors related to safe motherhood. Nevertheless, there is little literature exploring these perspectives through qualitative study, as most of the studies performed in Sudan applied quantitative methods and focused on urban areas. OBJECTIVE: This study aims to explore cultural perceptions and behaviors relevant to safe motherhood among Sudanese village women. DESIGN/METHOD: A qualitative method using an ethnographic approach was applied for the study. Semi-structured in-depth interviews were conducted with six village women of reproductive age living in a village in Gadarif State, Eastern Sudan. FINDINGS: The thematic content analysis revealed socio-economic factors, religious values and local beliefs shaping the village women's perceptions of their behaviors related to motherhood safety. Particular concerns included responses to health problems, preference for birth with traditional birth attendants, female genital mutilation/female genital cutting and a lack of utilizing family planning. CONCLUSIONS: An implication arising from this study is that maternal services should develop a collaboration between village midwives and traditional birth attendants. This study further suggests that educational messages must be delivered to family relatives with consideration of the cultural influences highlighted by the village women.


Assuntos
Características Culturais , Comportamentos Relacionados com a Saúde , Mães , Adolescente , Adulto , Antropologia Cultural , Feminino , Humanos , Adulto Jovem
2.
AJNR Am J Neuroradiol ; 34(3): 524-32, 2013 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-22899787

RESUMO

BACKGROUND AND PURPOSE: Restriction of diffusion has been reported in the early phase of secondary neuronal degeneration, such as wallerian degeneration. The purpose of this study was to investigate postoperative transient reduced diffusion in the ipsilateral striatum and thalamus as a remote effect of surgery. MATERIALS AND METHODS: Six hundred two postoperative MR imaging examinations in 125 patients after cerebral surgery were retrospectively reviewed, focusing on the presence of reduced diffusion in the striatum and/or thalamus. The distribution of reduced diffusion in the striatum was classified into 3 groups: anterior, central, and posterior. Reduced diffusion in the thalamus was also classified on the basis of the anatomic locations of the thalamic nuclei. Further follow-up MRI was available in all patients with postoperative reduced diffusion, and acute infarctions were excluded. The patient medical records were reviewed to evaluate neurologic status. RESULTS: Restriction of diffusion was observed in the striatum and/or thalamus ipsilateral to the surgical site in 17 patients (13.6%). The distribution of signal abnormality correlated with the location of the operation, in concordance with the architecture of the striatocortical and thalamocortical connections. Reduced diffusion was observed from days 7 to 46 after the operation, especially during days 8-21. The signal abnormalities completely resolved on follow-up examinations. The median follow-up period was 202 days (interquartile range, 76-487 days). CONCLUSIONS: Postoperative transient reduced diffusion in the ipsilateral striatum and/or thalamus likely represents an early phase of secondary neuronal degeneration based on its characteristic distribution and time course. Clinically, this reduced diffusion should not be mistaken for postoperative ischemic injury.


Assuntos
Corpo Estriado/patologia , Imageamento por Ressonância Magnética/estatística & dados numéricos , Procedimentos Neurocirúrgicos/estatística & dados numéricos , Tálamo/patologia , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Criança , Pré-Escolar , Feminino , Humanos , Lactente , Recém-Nascido , Japão/epidemiologia , Masculino , Pessoa de Meia-Idade , Período Pós-Operatório , Medição de Risco , Adulto Jovem
3.
Osteoporos Int ; 20(11): 1823-35, 2009 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-19262974

RESUMO

UNLABELLED: Using in vivo microcomputed tomography (micro-CT), we found in parathyroid hormone (PTH)-treated osteopenic rats linear increases in cortical and trabecular, due to increased trabecular thickness and number, bone mass. Bone was formed in cavities, leading to restoral of nearly cleaved trabeculae. For the first time, effects in PTH-treated rats were analyzed longitudinally. INTRODUCTION: Our aims were to over time (1) determine changes in trabecular thickness and number after PTH, (2) compare responses to PTH between the meta- and epiphysis, (3) determine effects of PTH on mineralization and mechanical properties, (4) determine locations of new bone formation due to PTH on a microlevel, and (5) determine the predictive value of bone structural properties for gain in bone mass after PTH. METHODS: Adult rats were divided into ovariectomy (OVX; n = 8), SHAM-OVX (n = 8), and OVX and PTH treatment (n = 9). Between weeks 8 and 14, PTH rats received daily subcutaneous PTH injections (60 microg/kg/day). At weeks 0, 8, 10, 12, and 14, in vivo micro-CT scans were made of the proximal and diaphyseal tibia. After sacrifice, all tibiae were tested in three-point bending. RESULTS: PTH increased bone volume fraction linearly over time in meta- and epiphysis, accompanied by increased trabecular thickness in both and increased trabecular number only in the latter one. CT-estimated mineralization increased in trabecular and remained constant in cortical bone. Ultimate load and energy were increased and ultimate displacement and stiffness unaltered compared to SHAM rats. For those trabeculae analyzed, bone was formed initially on places where it was most beneficial for increasing their strength and later on to all surfaces.


Assuntos
Conservadores da Densidade Óssea/uso terapêutico , Doenças Ósseas Metabólicas/tratamento farmacológico , Hormônio Paratireóideo/uso terapêutico , Tíbia/efeitos dos fármacos , Animais , Densidade Óssea/efeitos dos fármacos , Doenças Ósseas Metabólicas/diagnóstico por imagem , Doenças Ósseas Metabólicas/patologia , Doenças Ósseas Metabólicas/fisiopatologia , Remodelação Óssea/efeitos dos fármacos , Diáfises/diagnóstico por imagem , Diáfises/efeitos dos fármacos , Diáfises/patologia , Diáfises/fisiopatologia , Modelos Animais de Doenças , Avaliação Pré-Clínica de Medicamentos/métodos , Epífises/diagnóstico por imagem , Epífises/efeitos dos fármacos , Epífises/patologia , Epífises/fisiopatologia , Feminino , Ovariectomia , Ratos , Ratos Wistar , Tíbia/diagnóstico por imagem , Tíbia/patologia , Tíbia/fisiopatologia , Microtomografia por Raio-X
4.
Int J Pediatr Otorhinolaryngol ; 73(1): 153-8, 2009 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-19042035

RESUMO

The promontory stimulation test (PST) using a needle electrode has been used to evaluate the sense of the auditory nerve as a preoperative examination for cochlear implant in adults. Because this is a painful test, it is not suitable for children. It has been reported that children with inner ear anomaly showed poorer outcomes of hearing after cochlear implant. Electroaudiometry developed by Med-El Corporation, which is noninvasive, is a more suitable procedure for young children. Patients were three children less than five years old with inner ear anomaly. Two patients showed common cavity, and one showed narrow IAC with hypoplastic cochlear anomaly. By using Electroaudiometry, we analyzed electro-neural hearing of these children before cochlear implant, and compared their hearing after cochlear implant. Three children seemed to have residural electro-neural hearing because the dynamic range between stimulus level (SL) and uncomfortable level (UCL) was detected by using Electroaudiometry. After cochlear implant, their pure-tone audiograms showed moderate hearing thresholds, and their hearing detection and speech perception improved. These results suggest that Electroaudiometry is available for evaluating electro-neural hearing in young children with inner ear anomaly. It can provide useful information for a successful cochlear implant and evaluation of postoperative performances.


Assuntos
Estimulação Acústica , Audiometria/métodos , Implantes Cocleares , Perda Auditiva/diagnóstico , Estimulação Acústica/instrumentação , Audiometria/instrumentação , Pré-Escolar , Meato Acústico Externo , Eletrodos , Expressão Facial , Feminino , Perda Auditiva/fisiopatologia , Perda Auditiva/terapia , Humanos , Masculino , Valor Preditivo dos Testes
5.
Osteoarthritis Cartilage ; 17(4): 529-38, 2009 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-18922704

RESUMO

OBJECTIVE: The effect of the prostaglandin E2 (PGE2) signal through prostaglandin E receptor 2 (EP2) receptors on the repair of injured articular cartilage was investigated using a selective agonist for EP2. METHODS: Chondral and osteochondral defects were prepared on the rabbit femoral concave in both knee joints, and gelatin containing polylactic-co-glycolic acid microspheres conjugated with or without the EP2 agonist was placed nearby. Animals were sacrificed at 4 or 12 weeks post-operation, and regenerated cartilage tissues and subchondral structure remodeling were evaluated by histological scoring. The quality of regenerated tissues was also evaluated by the immunohistochemical staining of EP2, type II collagen, and proliferating cell nuclear antigen (PCNA). As an evaluation of side effects, the inflammatory reaction of the synovial membrane was analyzed based on histology and the mRNA expression of matrix metalloproteinase3 (MMP3), tissue inhibitor of metalloproteinase 3 (TIMP3), and interleukin-1 beta (IL-1 beta). Also, the activity of MMP3 and the amount of tumor necrosis factor-alpha (TNF-alpha) and C-reactive protein in joint fluid were measured. RESULTS: In both models, the EP2 agonist enhanced the regeneration of the type II collagen-positive tissues containing EP2- and PCNA-positive chondrocytes, and the histological scale of regenerated tissue and subchondral bone was better than that of on the control side, particularly at 12 weeks post-operation. No inflammatory reaction in the synovial membrane was observed, and no induction of pro-inflammatory cytokines was found in joint fluid. CONCLUSION: Selective stimulation of the PGE2 signal through EP2 receptors by a specific agonist promoted regeneration of cartilage tissues with a physiological osteochondral boundary, suggesting the potential usefulness of this small molecule for the treatment of injured articular cartilages.


Assuntos
Cartilagem Articular/lesões , Dinoprostona/fisiologia , Receptores de Prostaglandina E/fisiologia , Regeneração/fisiologia , Animais , Proteína C-Reativa/metabolismo , Cartilagem Articular/efeitos dos fármacos , Cartilagem Articular/patologia , Cartilagem Articular/fisiologia , Proliferação de Células/efeitos dos fármacos , Modelos Animais de Doenças , Avaliação Pré-Clínica de Medicamentos/métodos , Metaloproteinase 3 da Matriz/metabolismo , Coelhos , Receptores de Prostaglandina E/agonistas , Receptores de Prostaglandina E Subtipo EP2 , Regeneração/efeitos dos fármacos , Reação em Cadeia da Polimerase Via Transcriptase Reversa/métodos , Líquido Sinovial/metabolismo , Membrana Sinovial/efeitos dos fármacos , Membrana Sinovial/patologia , Fator de Necrose Tumoral alfa/metabolismo
6.
Radiat Prot Dosimetry ; 127(1-4): 411-4, 2007.
Artigo em Inglês | MEDLINE | ID: mdl-17567761

RESUMO

The aim of this study is to propose action levels for chelation therapy in the case of inhalation of plutonium compounds using nose swabs. The relationship between the activity found in the nose swabs and early faecal excretion was investigated using actual cases at JAEA-NFCEL. The ratio was found to be in log-normal distribution. The action levels based on the activity of nose swab corresponding to 10 ALI (=200 mSv) are determined for the facilities at JAEA-NFCEL by using the relationship and specific information such as isotopic ratio and physicochemical characteristics of plutonium compounds.


Assuntos
Bioensaio/métodos , Quelantes/uso terapêutico , Mucosa Nasal/metabolismo , Plutônio/administração & dosagem , Plutônio/farmacocinética , Lesões por Radiação/prevenção & controle , Radiometria/métodos , Carga Corporal (Radioterapia) , Simulação por Computador , Humanos , Concentração Máxima Permitida , Modelos Biológicos , Plutônio/toxicidade , Doses de Radiação , Lesões por Radiação/etiologia , Eficiência Biológica Relativa , Reprodutibilidade dos Testes , Sensibilidade e Especificidade
7.
Phys Med Biol ; 52(8): 2301-11, 2007 Apr 21.
Artigo em Inglês | MEDLINE | ID: mdl-17404470

RESUMO

We evaluated the basic properties of a commercially available BANGkit gel dosimeter, which is a normoxic type of BANG gel. This gel-kit has the same composition as the BANG 3 gel, but is fully oxygenated. To exclude oxygen, oxygen scavenging ascorbic acid and copper sulfate as a catalyst are used. The properties that we examined are the effects of the concentrations of copper sulfate and ascorbic acid on the response, the reproducibility, the long-term stability, the temperature effect at irradiation and the dose-rate effect. In our results, the excellent linear fit of the R2-dose response in a dose range for clinical use and its reproducibility were observed. The precision of a linear fit was preserved for about 3 weeks. The temperature at irradiation showed a significant effect on the dose response. Although the dose-rate dependence in the high-dose range was observed, it was negligible for the clinical dose range up to 270 cGy. In conclusion, this gel dosimeter is thought to be utilizable in clinical practice, while we have to pay attention to the temperature during the entire measurement processes, and additionally there is room for improvement in the linearity and the dose-rate dependence in the high-dose range.


Assuntos
Géis/efeitos da radiação , Radiometria/instrumentação , Radiometria/métodos , Relação Dose-Resposta à Radiação , Desenho de Equipamento , Análise de Falha de Equipamento , Doses de Radiação , Reprodutibilidade dos Testes , Sensibilidade e Especificidade
8.
Acta Radiol ; 47(10): 1022-8, 2006 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-17135003

RESUMO

PURPOSE: To evaluate whether portal vein embolization (PVE) using a mixture of gelatin sponge (GS) pieces and iodized oil is safe and effective in inducing hypertrophy of the future liver remnants (FLR). MATERIAL AND METHODS: PVE was performed in 14 patients (eight male and six female, mean age 65 years, range 35-81 years) diagnosed with malignant liver tumor before surgery, whose FLR volumes were judged too small to allow for safe resection. Liver volume change, biochemical data change, complications related to PVE, and postoperative complications were retrospectively evaluated. RESULTS: PVE was successful in all patients, and there were no procedural complications. Absolute FLR volume and FLR/total liver volume (TLV) ratio increased by 102 cm3 and 8% (mean values), respectively. Planned hepatectomies were cancelled in three patients due to extrahepatic metastasis or bile duct infection. Five of the 11 patients (45%) who underwent hepatectomies had major postoperative complications. However, complications due to hepatic failure were not seen. In 10 patients, except one whose outcome was fatal outcome, the mean hospitalization days with and without major complications were 73 and 33 days, respectively. CONCLUSION: PVE using a mixture of GS and iodized oil seems to be effective and safe in inducing hypertrophy of the FLR.


Assuntos
Embolização Terapêutica/métodos , Gelatina/uso terapêutico , Hepatectomia , Óleo Iodado/uso terapêutico , Neoplasias Hepáticas/cirurgia , Veia Porta , Cuidados Pré-Operatórios , Adulto , Idoso , Idoso de 80 Anos ou mais , Feminino , Humanos , Neoplasias Hepáticas/diagnóstico , Masculino , Pessoa de Meia-Idade , Resultado do Tratamento
9.
Acta Radiol ; 47(6): 609-11, 2006 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-16875341

RESUMO

General paresis (parenchymatous neurosyphilis) is a rare disease, and in recent years the number of papers published on the magnetic resonance imaging findings has been limited. The findings are as follows: cerebral atrophy; mesiotemporal T2 hyperintensity; ventriculomegaly; pathological T2 hypointensity of the globus pallidus, putamen, the head of the caudate nucleus and thalamus. We present a new finding, diffuse cerebral white matter T2 hyperintensity, observed in a patient with general paresis with a 5-year history of progressive dementia.


Assuntos
Encefalopatias/diagnóstico , Aumento da Imagem/métodos , Imageamento por Ressonância Magnética/métodos , Neurossífilis/diagnóstico , Adulto , Atrofia , Núcleo Caudado/patologia , Ventrículos Cerebrais/patologia , Demência/diagnóstico , Lobo Frontal/patologia , Globo Pálido/patologia , Humanos , Masculino , Lobo Parietal/patologia , Putamen/patologia , Lobo Temporal/patologia , Tálamo/patologia
10.
Psychopharmacology (Berl) ; 187(3): 293-302, 2006 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-16850286

RESUMO

RATIONALE: The present study hypothesized that delayed increases in extracellular glutamate (Glu) levels in the nucleus accumbens (NAC), induced by a high dose of methamphetamine (METH), can result in some functional changes of excitatory amino acid receptors, developing behavioral cross-sensitization to a non-competitive N-methyl-D-aspartate (NMDA) receptor antagonist, MK-801. OBJECTIVES: The present study aims to examine whether two different doses of METH (2.5 and 1.0 mg/kg) induce different effects on the development of cross-sensitization to MK-801. To clarify the mechanisms for development and expression of cross-sensitization to MK-801, we measured extracellular Glu and dopamine (DA) levels in the NAC at METH injections in a treatment period and at MK-801 injection after a 12-day withdrawal period. MATERIALS AND METHODS: METH- or MK-801-induced changes in Glu and DA levels and in locomotion were measured using in vivo microdialysis and infrared sensor, respectively. RESULTS: METH, at only 2.5 mg/kg, produced delayed increases in Glu levels and developed behavioral cross-sensitization to MK-801 (0.2 mg/kg). MK-801 (0.2 mg/kg) induced delayed increases in Glu levels in the NAC, but this time course was not completely consistent with MK-801-induced enhanced hyperlocomotion. During this time course, MK-801 (0.2 mg/kg) did not induce any changes in DA levels. CONCLUSIONS: These results suggest that METH-induced, at 2.5 mg/kg, delayed increases in Glu levels are necessary for development of behavioral cross-sensitization to MK-801, but not METH. The enhanced locomotion-inducing effect of MK-801 might be related to some functional changes in excitatory amino acid receptors such as NMDA and DL-alpha-amino-3-hydroxy-5-methylisoxazole-4-propionic acid in the NAC.


Assuntos
Maleato de Dizocilpina/farmacologia , Antagonistas de Aminoácidos Excitatórios/farmacologia , Ácido Glutâmico/análise , Metanfetamina/farmacologia , Núcleo Accumbens/efeitos dos fármacos , Receptores de N-Metil-D-Aspartato/antagonistas & inibidores , Animais , Benzazepinas/farmacologia , Dopamina/análise , Relação Dose-Resposta a Droga , Masculino , Microdiálise , Atividade Motora/efeitos dos fármacos , Núcleo Accumbens/química , Ratos , Ratos Sprague-Dawley
11.
Psychopharmacology (Berl) ; 186(4): 525-33, 2006 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-16758239

RESUMO

RATIONALE: Our group has recently shown that methamphetamine (METH) (2.5 mg/kg) induced delayed increases in glutamate (Glu) levels in the rat nucleus accumbens (NAC), and that its repeated administration leads to behavioral cross-sensitization to a selective uncompetitive N-methyl-D-aspartate (NMDA) receptor antagonist, dizocilpine (MK-801). OBJECTIVES: The present study aims to examine whether valproate (VPA) would inhibit the delayed increases in Glu levels and prevent METH (2.5 mg/kg)-induced behavioral cross-sensitization to MK-801 (0.2 mg/kg). MATERIALS AND METHODS: We examined the effects of post-treated VPA (50 mg/kg) on METH (2.5 mg/kg)-induced delayed increases in Glu levels. We injected VPA (50 mg/kg) at 120 min after each METH (2.5 mg/kg, once every other day, total of five times) administration and measured locomotor activity induced by challenge with MK-801 (0.2 mg/kg) or METH (0.15 mg/kg) after sufficient withdrawal period. Finally, we measured locomotion induced by MK-801 (0.2 mg/kg) after pretreatment of a competitive NMDA receptor antagonist, CPP (30 mg/kg). Effects of VPA on extracellular Glu levels were examined by using in vivo microdialysis. Locomotor activity was measured by using an infrared sensor. RESULTS: VPA administered 120 min after METH injection had no effect on METH-induced hyperlocomotion, and inhibited METH-induced delayed increases in Glu levels. Repeated VPA administration prevented METH-induced behavioral cross-sensitization to MK-801, but not sensitization to METH. MK-801-induced hyperlocomotion was enhanced when pretreated with the competitive NMDA receptor antagonist, CPP. CONCLUSIONS: These results suggest that VPA inhibits high-dose METH-induced delayed increases in Glu levels to prevent development of behavioral cross-sensitization to an NMDA antagonist, but not sensitization to METH.


Assuntos
Anticonvulsivantes/farmacologia , Comportamento Animal/efeitos dos fármacos , Estimulantes do Sistema Nervoso Central/farmacologia , Maleato de Dizocilpina/farmacologia , Antagonistas de Aminoácidos Excitatórios/farmacologia , Locomoção/efeitos dos fármacos , Metanfetamina/farmacologia , Ácido Valproico/farmacologia , Animais , Relação Dose-Resposta a Droga , Interações Medicamentosas , Ácido Glutâmico/metabolismo , Masculino , Microdiálise , Plasticidade Neuronal/efeitos dos fármacos , Núcleo Accumbens/efeitos dos fármacos , Núcleo Accumbens/metabolismo , Ratos , Ratos Sprague-Dawley , Receptores de N-Metil-D-Aspartato/antagonistas & inibidores , Receptores de N-Metil-D-Aspartato/metabolismo , Fatores de Tempo
13.
Neurology ; 64(2): 224-9, 2005 Jan 25.
Artigo em Inglês | MEDLINE | ID: mdl-15668417

RESUMO

OBJECTIVE: Voxel-based morphometry was used to compare the amounts of gray matter in the brains of patients with Parkinson disease (PD) and normal control subjects (NCs) and to identify the specific regions responsible for cognitive dysfunction in PD. METHODS: Patients were classified into nondemented (ND) and demented (D) groups according to the criteria of the Diagnostic and Statistical Manual of Mental Disorders (4th ed.), and a group comparison was performed. In the ND patients, a correlation was also performed between local gray matter density and the score on Raven Colored Progressive Matrices (RCPM), a test of executive and visuospatial function. RESULTS: In patients with advanced ND-PD vs NCs, atrophic changes were observed in the limbic/paralimbic areas and the prefrontal cortex. In D vs ND patients, atrophic change was observed widely in the limbic/paralimbic system, including the anterior cingulate gyrus and hippocampus as well as the temporal lobe, dorsolateral prefrontal cortex, thalamus, and caudate nucleus. The RCPM score was positively correlated with the gray matter density in the dorsolateral prefrontal cortex and the parahippocampal gyrus. CONCLUSIONS: In patients with Parkinson disease (PD), atrophic changes occur mainly in the limbic/paralimbic and prefrontal areas. These atrophic changes may be related to the development of dementia in PD.


Assuntos
Encéfalo/patologia , Demência/patologia , Doença de Parkinson/patologia , Idoso , Atrofia , Núcleo Caudado/patologia , Demência/etiologia , Demência/psicologia , Feminino , Atividade Nervosa Superior , Humanos , Sistema Límbico/patologia , Imageamento por Ressonância Magnética , Masculino , Pessoa de Meia-Idade , Neurônios/patologia , Testes Neuropsicológicos , Doença de Parkinson/psicologia , Córtex Pré-Frontal/patologia , Percepção Espacial , Lobo Temporal/patologia , Tálamo/patologia , Percepção Visual
14.
Minim Invasive Neurosurg ; 47(4): 253-5, 2004 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-15346326

RESUMO

The imaging findings in some cases of low back pain are difficult to describe and the pathophysiology is not clear because subjective findings are usually difficult to document. This report concerns a rare case about the lumbosacral joint causing persistent severe back pain which in itself does not usually have any pathological meaning. We describe the diagnosis, treatment, and outcome of a patient suffering from low back pain with lumbosacral transitional vertebra. The radiological examination showed the congenitally malformed transverse processes of the 5th lumbar vertebra to create a facet joint-like shape at the sacral ala region on both sides. Surgery resulted in immediate disappearance of the low back pain. When the lumbosacral junction shows some instability without fusion, the joint-like region could be the cause of low back pain. The lumbosacral transitional vertebra may be associated with low back pain. Electric denervation of the space between the transverse process of 5th lumbar vertebra and sacral ala is minimally invasive and effective for pain eradication.


Assuntos
Denervação/métodos , Terapia por Estimulação Elétrica , Dor Lombar/etiologia , Vértebras Lombares/anormalidades , Vértebras Lombares/patologia , Adulto , Humanos , Região Lombossacral , Masculino , Resultado do Tratamento
15.
Artigo em Inglês | MEDLINE | ID: mdl-12417805

RESUMO

Phantasy Therapy is an interdisciplinary depth-psychologically oriented group therapy form with focus on the treatment of psychoses in acute and remission phases. A different theme is presented to the patients every week on two consecutive days (90 min per session), coherently, via various sensory channels. On the first day, the theme is concretely and operationally introduced by means of an object, transformed into movement in the broadest sense of the word, and experienced directly with the body. The first session ends with a story, usually a fairy tale or parable, so that the body experiences can be further realized symbolically at the cognitive-emotional level. The second session treats the same theme via repetition of the chosen story with the deeper transformation of symbols into color and form. The first day is jointly led by a psychotherapist and a movement/ dance therapist, the second day by a psychotherapist and an art therapist. Our approach understands therapy as a somatesthetic experience- and synthetic expression-oriented encounter with the patient via the therapist's empathic imaginative identification with the patient by means of a progressively orchestrated, positivizing, cognitive-emotional, theme-centered rapport. In this connection six therapeutic elements are of importance: theme, object, movement, fairy tale, artwork, symbol. Phantasy Therapy offers the patient creative freedom in a humorous and playful way within a certain therapeutic security (Amae principle) and contradicts several classical prejudices concerning the treatment of psychotic patients.


Assuntos
Fantasia , Transtornos Mentais/terapia , Psicoterapia de Grupo/métodos , Psicoterapia/métodos , Humanos , Apego ao Objeto , Teste de Realidade , Transferência Psicológica
16.
Biochem Pharmacol ; 62(9): 1249-55, 2001 Nov 01.
Artigo em Inglês | MEDLINE | ID: mdl-11705458

RESUMO

Heme oxygenase (HO) is the rate-limiting enzyme in the degradation of heme into biliverdin, carbon monoxide, and iron. HO-1, an inducible form, is thought to contribute to resistance to various types of oxidative stress. Doxorubicin (DOX) produces clinically useful responses in a variety of human cancers. We reported previously that prior administration of DOX ameliorated subsequent hepatic ischemia and reperfusion injury. The aim of this study was to examine whether this pharmacological preconditioning was useful for another type of hepatic injury induced by a non-surgical method. When a high dose of DOX (10 mg/kg body weight) was administered directly to rat liver via the portal vein, serum aspartate transaminase (AST) and alanine transaminase (ALT) levels increased markedly 24 hr after the injection. Under this condition, zinc-protoporphyrin IX, a specific inhibitor of HO-1, caused both serum AST and ALT levels to be elevated further. When a low dose of DOX (5 mg/kg body weight) was administered to rats via the tail vein as pharmacological preconditioning 3 days before the injection of a high dose of DOX via the portal vein, the levels of serum AST and ALT in rats clearly were improved as compared with rats without the preconditioning. Expression of HO-1 in the liver was confirmed 3 days after the administration of a low dose of DOX. In addition, prior administration of zinc-protoporphyrin IX abolished the effect of DOX preconditioning. Immunohistochemical analysis showed that the positive staining of HO-1 protein induced by a low dose of DOX was localized to histiocytes infiltrating periportal areas. These results strongly suggest that pharmacological preconditioning with DOX may generally help to attenuate subsequent oxidant-induced hepatic injury.


Assuntos
Antibióticos Antineoplásicos/toxicidade , Doxorrubicina/toxicidade , Heme Oxigenase (Desciclizante)/biossíntese , Fígado/efeitos dos fármacos , Animais , Indução Enzimática/efeitos dos fármacos , Inibidores Enzimáticos/farmacologia , Heme Oxigenase (Desciclizante)/efeitos dos fármacos , Heme Oxigenase-1 , Fígado/enzimologia , Fígado/lesões , Fígado/patologia , Masculino , Protoporfirinas/farmacologia , Ratos , Ratos Wistar
17.
Int J Colorectal Dis ; 16(5): 326-30, 2001 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-11686532

RESUMO

The repeated use of chemotherapy to treat patients with colorectal carcinoma may be limited by the fact it creates resistance cells. However, we have observed a remarkable decrease in certain types of drug resistance in patients treated with direct electric current. Experimental studies were therefore performed in animals to determine the differences in pharmacodynamics between chemotherapy with and that without electric treatment. Tumors were created in BALB/c mice by intradermal injection of 0.25 ml 4 x 10(6) Colon 26 cells/ml in the abdomen. Seven days later the mice were divided into two groups: controls and those that underwent electric treatment. Direct electric current (1,000 V, 0.2-0.8 microA) was passed between a platinum electrode inserted intradermally and the earth during and for 1 h after a single intravenous injection of 5-fluorouracil (5-FU; 12.5 mg ml(-1) kg(-1)). Peripheral blood samples were collected before and 5, 10, 20, 30, 45, and 60 min after the injection of 5-FU. Concentrations of 5-FU in the sera and tissues were measured by HPLC. The intratumoral concentrations of 5-FU in the electric treatment group were higher than those in the controls (P<0.05, two-factor analysis of variance), but the serum concentrations were not statistically different between the two groups. Pharmacodynamic changes were thus observed as a result of electrostatic treatment during chemotherapy. This elevated 5-FU concentration in the tumor tissue is considered one of the reasons for the effective inhibition of 5-FU resistance in clinical cases.


Assuntos
Antimetabólitos Antineoplásicos/administração & dosagem , Antimetabólitos Antineoplásicos/farmacocinética , Neoplasias Colorretais/tratamento farmacológico , Terapia por Estimulação Elétrica , Fluoruracila/administração & dosagem , Fluoruracila/farmacocinética , Animais , Antimetabólitos Antineoplásicos/sangue , Resistencia a Medicamentos Antineoplásicos , Fluoruracila/sangue , Camundongos , Camundongos Endogâmicos BALB C , Resultado do Tratamento
18.
ASAIO J ; 47(4): 338-41, 2001.
Artigo em Inglês | MEDLINE | ID: mdl-11482482

RESUMO

To improve the antitumor effect of chemotherapy on a target organ, we experimentally investigated pharmacokinetic alteration of methotrexate (MTX) induced by an electric current in rats to ascertain whether the local concentration of MTX could be enhanced while reducing the concentration in blood. Six male Wistar rats had platinum electrodes introduced into both kidneys. Three rats were subjected to direct current (3.5 V, 50 microA) for 3 hours, while another three control rats received no current. While providing the current to the treated group, all of the rats were intravenously injected with MTX at a dose of 1 mg/kg. The MTX concentration in urine (excreted from each ureter) and serum was measured by fluorescence polarization immunoassay. Cumulative MTX renal excretion rate was significantly higher in the cathode than anode side in the treated group (p < 0.01). Serum MTX concentration at 0 to 5 min was significantly reduced in the treated group (p < 0.03). The first part of the area under the curve (i.e., alpha curve) was markedly increased in the treated group versus controls (p = 0.05). Electric therapy using a slight direct current could gather anionized MTX to the cathode, while reducing MTX concentration in the serum of experimental rats.


Assuntos
Sistemas de Liberação de Medicamentos/métodos , Terapia por Estimulação Elétrica/métodos , Neoplasias/tratamento farmacológico , Animais , Antimetabólitos Antineoplásicos/farmacocinética , Rim/metabolismo , Masculino , Metotrexato/farmacocinética , Ratos , Ratos Wistar
19.
J Vasc Interv Radiol ; 12(7): 847-54, 2001 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-11435541

RESUMO

PURPOSE: To evaluate long-term prognosis of transcatheter arterial chemoembolization (TACE) with use of cisplatin (CDDP) lipiodol (LPD) suspension (CDDP/LPD) compared with that with use of doxorubicin hydrochloride (ADM) LPD emulsion (ADM/LPD) in patients with unresectable hepatocellular carcinoma (HCC). MATERIALS AND METHODS: One hundred eight patients were treated with use of CDDP/LPD and 26 were treated with use of ADM/LPD. Survival rates and frequency of side effects and complications in the CDDP/LPD group were compared with those in the ADM/LPD group. RESULTS: CDDP/LPD was given at a dose of 15-70 mg (mean dose, 41 mg), whereas ADM/LPD was given at a dose of 20-100 mg (mean dose, 57 mg) throughout the study period. The survival rates in the CDDP/LPD group were 81% at 1 year, 41% at 3 years, 19% at 5 years, and 13% at 7 years, whereas those in the ADM/LPD group were 67% at 1 year, 18% at 3 years, and 0% at 5 years. The CDDP/LPD group showed significantly better survival than the ADM/LPD group (P <.05). In the CDDP/LPD group, there was a significant prolongation of survival in patients with monofocal HCC (P <.05) and patients with HCC assessed as an almost complete LPD accumulation (P <.05). There were no significant differences in survival rates in the ADM/LPD group according to tumor size and number of tumors. Hepatic failure was observed in 8% of all procedures and was not different between the two therapeutic groups. Renal dysfunction was observed in 2% of all treatments involving CDDP/LPD, and it resolved spontaneously with appropriate medications. CONCLUSIONS: TACE with use of low-dose CDDP was efficacious for unresectable HCC and had few complications. TACE with use of CDDP may contribute to prolongation of the life span of patients with HCC versus TACE with use of ADM.


Assuntos
Antineoplásicos/administração & dosagem , Carcinoma Hepatocelular/terapia , Quimioembolização Terapêutica/mortalidade , Cisplatino/administração & dosagem , Meios de Contraste/administração & dosagem , Doxorrubicina/administração & dosagem , Óleo Iodado/administração & dosagem , Neoplasias Hepáticas/terapia , Idoso , Idoso de 80 Anos ou mais , Antineoplásicos/efeitos adversos , Carcinoma Hepatocelular/mortalidade , Cisplatino/efeitos adversos , Meios de Contraste/efeitos adversos , Doxorrubicina/efeitos adversos , Emulsões , Feminino , Seguimentos , Humanos , Óleo Iodado/efeitos adversos , Neoplasias Hepáticas/mortalidade , Masculino , Pessoa de Meia-Idade , Prognóstico , Suspensões
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