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1.
J Phys Chem A ; 113(42): 11443-53, 2009 Oct 22.
Artigo em Inglês | MEDLINE | ID: mdl-19785393

RESUMO

The self-assembly of SbCl(3) and 1,4-dioxane in a 2:3 ratio leads to an interpenetrating extended cubic structure from X-ray crystallography. The structure is held together by very weak Sb-O bonds ( approximately 7 kcal/mol each), which still maintain strong directionality. Parameterization and subsequent simulation of the system using a reactive force field (ReaxFF) gives us insight into the key interactions necessary for self-assembly from a completely random configuration of molecules into the experimentally observed cubic structure. We explain why the porous structure (with no interpenetration of lattices) is not observed, and we trace the important intermediate substructures formed en route to the crystal.

2.
Hum Gene Ther ; 20(12): 1641-51, 2009 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-19671000

RESUMO

Immunotherapy with whole cell cancer vaccines has been tested in various tumor types. This study investigated the safety profile and antitumor activity of an allogeneic prostate carcinoma cell line, LNCaP, expressing recombinant human interleukin-2 and human interferon-gamma. Thirty HLA-A*0201-matched patients with progressive, castration-resistant prostate cancer received four intradermal injections on days 1, 15, 29, and 92, and then every 90 days, as long as no tumor progression occurred. Three patients received a dose level of 7.5 million cells, and 27 patients received 15 million cells per injection. The primary study criteria were safety and the difference in prostate-specific antigen doubling time (PSA-DT), determined in the pretreatment phase (before the start of vaccination) and in the trial treatment phase (during vaccination). No dose-limiting or autoimmune toxicity was seen. During vaccination there was a significant prolongation of the PSA-DT compared with the prevaccination period (prolongation from 63 to 114 days; p < 0.01; intention to treat). In addition, results showed a period of PSA stabilization of at least 12 weeks, together with stable bone scans in 12 of 30 patients, and 3 patients sustained a >50% decrease in PSA versus baseline. The median overall survival time from first vaccination was 32 months (mean value, 34 months). Immune monitoring revealed T cell stimulation in the majority of patients. This vaccine strategy was found to be safe and well tolerated and was accompanied by prolongation of PSA-DT. The results of this trial warrant clinical development of this vaccine.


Assuntos
Vacinas Anticâncer/administração & dosagem , Interferon gama/imunologia , Interleucina-2/imunologia , Neoplasias da Próstata/terapia , Idoso , Idoso de 80 Anos ou mais , Vacinas Anticâncer/efeitos adversos , Vacinas Anticâncer/imunologia , Castração , Linhagem Celular Tumoral , Antígenos HLA-A/imunologia , Antígeno HLA-A2 , Humanos , Interferon gama/genética , Interleucina-2/genética , Masculino , Pessoa de Meia-Idade , Neoplasias da Próstata/mortalidade , Neoplasias da Próstata/patologia , Vacinação/efeitos adversos
3.
J Gene Med ; 10(6): 655-67, 2008 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-18338834

RESUMO

Despite aggressive pre- or postoperative treatment, feline fibrosarcomas have high recurrence rates. Immunostimulatory gene therapy is a promising approach in veterinary oncology. This phase I dose-escalation study was performed to determine toxicity and feasibility of gene therapy with feline granulocyte-macrophage colony-stimulating factor (feGM-CSF) in cats with fibrosarcomas. Twenty cats were treated with plasmid coding for feGM-CSF attached to magnetic nanoparticles in doses of 50, 250, 750 and 1250 microg. Two preoperative intratumoral injections followed by magnetofection were given. Four control cats received only surgical treatment. Adverse events were recorded and correlated according to the veterinary co-operative oncology group toxicity scale. An enzyme-linked immunosorbent assay was performed to detect plasma feGM-CSF concentrations. No significant treatment related toxicity was observed. Preliminary recurrence results were encouraging as, on day 360, ten of 20 treated cats were recurrence-free. In conclusion, 1250 microg of feGM-CSF plasmid DNA applied by magnetofection is safe and feasible for phase II testing.


Assuntos
Doenças do Gato/terapia , Fibrossarcoma/veterinária , Técnicas de Transferência de Genes/veterinária , Terapia Genética/veterinária , Fator Estimulador de Colônias de Granulócitos e Macrófagos/metabolismo , Terapia Neoadjuvante/veterinária , Animais , Doenças do Gato/imunologia , Gatos , Relação Dose-Resposta a Droga , Ensaio de Imunoadsorção Enzimática , Fibrossarcoma/imunologia , Fibrossarcoma/terapia , Terapia Genética/métodos , Fator Estimulador de Colônias de Granulócitos e Macrófagos/sangue , Magnetismo , Nanopartículas/uso terapêutico , Terapia Neoadjuvante/métodos , Resultado do Tratamento
4.
Eur Urol ; 54(5): 1179-87, 2008 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-18313832

RESUMO

BACKGROUND: Schwann cell-seeded guidance tubes have been shown to promote cavernous nerve regeneration, and the local delivery of neurotrophic factors may additionally enhance nerve regenerative capacity. The present study evaluates whether the transplantation of GDNF-overexpressing Schwann cells may enhance regeneration of bilaterally transected erectile nerves in rats. METHODS: Silicon tubes seeded with either GDNF-overexpressing or GFP-expressing Schwann cells were implanted into the gaps between transected cavernous nerve endings. Six (10 study nerves) or 12 wk (20 study nerves) postoperatively, erectile function was evaluated by relaparotomy, electrical nerve stimulation, and intracavernous pressure recording, followed by ultrastructural evaluation of reconstructed nerves employing bright-field and electron microscopy. Additional animals were either sham-operated (positive control; 20 study nerves) or received bilateral nerve transection without nerve reconstruction (negative control; 20 study nerves). RESULTS: The combination of GDNF delivery and Schwann cell application promoted an intact erectile response in 90% (9 of 10) of grafted nerves after 6 wk and in 95% (19 of 20) after 12 wk, versus 50% (5 of 10) and 80% (16 of 20) of GFP-expressing Schwann cell grafts (p=0.02). The functional recovery was paralleled by enhanced axonal regeneration in GDNF-overexpressing Schwann cell grafts, as indicated by larger cross-sectional areas and a significantly higher percentage of neural tissue compared with GFP-transduced controls. CONCLUSIONS: These findings demonstrate that the time required to elicit functional recovery of erectile nerves can be reduced by local delivery of GDNF. In terms of clinical application, this enhanced nerve repair might be critical for timely reinnervation of the corpus cavernosum as a prerequisite for functional recovery in men.


Assuntos
Transplante de Células/métodos , Disfunção Erétil/cirurgia , Fator Neurotrófico Derivado de Linhagem de Célula Glial/biossíntese , Regeneração Nervosa/fisiologia , Ereção Peniana/fisiologia , Pênis/cirurgia , Células de Schwann/transplante , Animais , Axônios/fisiologia , Axônios/ultraestrutura , Células Cultivadas , Modelos Animais de Doenças , Ensaio de Imunoadsorção Enzimática , Disfunção Erétil/metabolismo , Disfunção Erétil/fisiopatologia , Imuno-Histoquímica , Masculino , Microscopia Eletrônica , Pênis/inervação , Ratos , Ratos Endogâmicos F344 , Recuperação de Função Fisiológica/fisiologia , Células de Schwann/metabolismo , Células de Schwann/ultraestrutura
5.
Int J Exp Pathol ; 89(6): 433-7, 2008 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-19134052

RESUMO

Dysfunction of the graft after liver transplantation caused by ischaemia-/reperfusion (I/R) injury is a serious clinical problem. The aim of this study was to evaluate the influence of different kinds of reperfusion on I/R injury in a rat model. Arterialized orthoptic rat liver treatment was performed on male LEWIS-(RT(1))-rats. Three groups (n = 7) were formed. Group I: antegrade reperfusion with a 6-min delayed reperfusion via the hepatic artery. Group II: Antegrade reperfusion, simultaneously, via the portal vein and the hepatic artery. Group III: Retrograde reperfusion via the vena cava. Serum parameters were determined one, 24 and 48 h after operation. Furthermore, after 48 h, the liver was taken for histological assessment. After 48 h, rats of group III showed significantly lower aspartate amino transferase and alanine amino transferase serum levels compared with group I and group II rats. Forty-eight hours after transplantation, glutamate dehydrogenase serum level was significantly lower in group III than in group II. In histology, group III livers showed significantly less necrotic spots than group I and group II livers. Maximum size of the necrotic spots was significantly lower in group III than in group I. Also, significantly more necrotic spots were seen in the 'Rappaport's zone' 1 and 2 of group I than in group III. Our data suggested that the expression of I/R-injury correlates with the type of reperfusion. Furthermore, under standard conditions, this study was able to demonstrate that in a rat model, the retrograde reperfusion leads to a lower expression of I/R-injury than the antegrade reperfusion.


Assuntos
Transplante de Fígado/métodos , Fígado/patologia , Traumatismo por Reperfusão/patologia , Reperfusão/métodos , Alanina Transaminase/análise , Animais , Aspartato Aminotransferases/análise , Glutamato Desidrogenase/análise , Artéria Hepática , Fígado/enzimologia , Testes de Função Hepática , Masculino , Veia Porta , Ratos , Ratos Endogâmicos Lew , Veia Cava Inferior , Isquemia Quente
6.
Biomaterials ; 28(30): 4480-7, 2007 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-17629939

RESUMO

To examine a retroviral gene transfer to chondrocytes in vitro and in vivo in tissue-engineered cell-collagen constructs articular chondrocytes from rabbits and humans were isolated and transduced with VSV.G pseudotyped murine leukemia virus-derived retroviral vectors. Viral supernatants were generated by transient transfection of 293T cells using the pBullet retroviral vector carrying the nlslacZ gene, a Moloney murine leukemia virus gag/pol plasmid and a VSV.G coding plasmid. Transduction efficiency was analyzed by fluorescence-activated-cell-sorter analysis and transduced autologous chondrocytes from rabbits were seeded on collagen-scaffolds and implanted into osteochondral defects in the patellar groove of the rabbit's femur (n=10). LacZ-expression was analyzed by X-gal staining on total knee explants and histological sections. Retroviral transduction efficiency exceeded 92.3% (SEM+/-3.5%) in rabbit articular chondrocytes, 74.7% (SEM+/-1.8%) in human articular chondrocytes and 52.7% (SEM+/-5.8%) in osteoarthritic human chondrocytes. Reporter gene expression remained high after 15 weeks in 75.7% (SEM+/-8.2%) of transduced rabbit articular chondrocytes. In vivo, intraarticular beta-galactosidase activity could be determined in the majority of implanted chondrocytes in the osteochondral defects after 4 weeks.


Assuntos
Condrócitos/metabolismo , Colágeno Tipo I/metabolismo , Técnicas de Transferência de Genes , Vetores Genéticos , Osteoartrite/metabolismo , Animais , Cartilagem Articular/citologia , Técnicas de Cultura de Células , Linhagem Celular , Sobrevivência Celular , Células Cultivadas , Condrócitos/citologia , Condrócitos/patologia , Feminino , Fêmur , Expressão Gênica , Terapia Genética , Humanos , Imuno-Histoquímica , Implantes Experimentais , Rim/citologia , Óperon Lac , Osteoartrite/patologia , Osteoartrite/terapia , Coelhos , Retroviridae/genética , Fatores de Tempo , Engenharia Tecidual/métodos , Transdução Genética , Transplante Autólogo , beta-Galactosidase/genética
7.
J Vet Intern Med ; 21(6): 1340-6, 2007.
Artigo em Inglês | MEDLINE | ID: mdl-18196745

RESUMO

BACKGROUND: Recombinant feline interferon-omega (rFeIFN-omega) was tested as a treatment option for cats with fibrosarcoma to assess safety and feasibility. HYPOTHESIS: Treatment with rFeIFN-omega in cats with fibrosarcoma is safe and feasible. ANIMALS: Twenty domestic cats. METHODS: In an open-labeled uncontrolled clinical trial 12 injections of 1 x 10(6) U/kg rFeIFN-omega were administered over a 5-week period: the 1st through 4th injections were given intratumorally, and the 5th through 12th injections were administered subcutaneously at the tumor excision site. Wide surgical excision of the tumors was carried out after the 4th injection and before the 5th injection of rFeIFN-omega. A Common Terminology Criteria for Adverse Events (CTCAE) analysis was conducted. Flow cytometry of fibrosarcoma cells after incubation with rFeIFN-omega and recombinant feline interferon-gamma was performed to assess the biological effect of rFeIFN-omega. RESULTS: Changes in blood cell count, increases in serum aspartate-amino-transferase activity, serum bilirubin concentration, serum creatinine and serum electrolyte concentrations, weight loss, anorexia, increased body temperature, and reduced general condition were observed but were mostly minor (grade 1 and 2) and self limiting. Eosinophilia (P = .025), neutropenia (P = .021), and weight loss (P < .001) were statistically correlated with rFeIFN-omega-treatment (analysis of parameters before treatment and after 3 injections of rFeIFN-omega). Flow cytometry of 5 unrelated feline fibrosarcoma cell lines showed increased expression of major histocompatibility complex (MHC) class I molecules (P = .026) in response to in vitro incubation with rFeIFN-omega, whereas expression of MHC class II molecules was not affected significantly. CONCLUSIONS AND CLINICAL IMPORTANCE: RFeIFN-omega for the treatment of feline fibrosarcoma is safe, well tolerated, and can be easily performed in practice. To assess the efficacy of the treatment, it should be tested in a placebo-controlled trial.


Assuntos
Adjuvantes Imunológicos/uso terapêutico , Doenças do Gato/tratamento farmacológico , Fibrossarcoma/veterinária , Interferon Tipo I/uso terapêutico , Animais , Gatos , Fibrossarcoma/tratamento farmacológico , Antígenos de Histocompatibilidade , Interferon gama/uso terapêutico , Proteínas Recombinantes
8.
Dermatology ; 211(4): 351-5, 2005.
Artigo em Inglês | MEDLINE | ID: mdl-16286746

RESUMO

Acrodermatitis continua of Hallopeau (ACH) is a rare type of pustular psoriasis affecting the digits. We report on a 43-year-old female patient who had been suffering from ACH for more than 20 years. Despite the fact that the disease was localized on one finger during the whole period, several topical and systemic treatments resulted in only temporary or partial improvement of the lesion. Although the monotherapies with calcipotriol and tacrolimus ointments gave no satisfying results in the long-term management of the disease, the combination of both agents led to a continuous improvement of the patient's skin condition.


Assuntos
Acrodermatite/tratamento farmacológico , Calcitriol/análogos & derivados , Fármacos Dermatológicos/uso terapêutico , Dermatoses da Mão/tratamento farmacológico , Imunossupressores/uso terapêutico , Psoríase/tratamento farmacológico , Tacrolimo/uso terapêutico , Administração Cutânea , Adulto , Calcitriol/administração & dosagem , Calcitriol/uso terapêutico , Fármacos Dermatológicos/administração & dosagem , Combinação de Medicamentos , Feminino , Humanos , Imunossupressores/administração & dosagem , Pomadas , Tacrolimo/administração & dosagem
9.
Vet Anaesth Analg ; 32(5): 261-70, 2005 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-16135207

RESUMO

OBJECTIVE: To compare the quality of surgical anaesthesia and cardiorespiratory effects of three intramuscular (IM) anaesthetic combinations in rabbits. STUDY DESIGN: Prospective randomized cross-over experimental study. ANIMALS: Nineteen adult female chinchilla mixed-bred rabbits weighing 3.9 +/- 0.8 kg. METHODS: Rabbits were given one of three IM anaesthetic combinations: 0.25 mg kg(-1) medetomidine and 35.0 mg kg(-1) ketamine (M-K), 0.20 mg kg(-1) medetomidine and 0.02 mg kg(-1) fentanyl and 1.0 mg kg(-1) midazolam (M-F-Mz) and 4.0 mg kg(-1) xylazine and 50 mg kg(-1) ketamine (X-K). The effects of anaesthesia on nociceptive reflexes, circulatory and respiratory function were recorded. Statistical analyses involved repeated measures anova with paired Student's t-test applied post hoc. P-values <0.05 were considered as significant. RESULTS: Reflex loss was most rapid and complete in M-K recipients, whereas animals receiving M-F-Mz showed the longest tolerance of endotracheal intubation (78.1 +/- 36.5 minutes). Loss of righting reflex was significantly most rapid (p < 0.05) in the X-K group (114.7 +/- 24.0 minutes). Surgical anaesthesia was achieved in 16 of 19 animals receiving M-K, in 14 animals receiving M-F-Mz, and in seven animals with X-K, but only for a short period (7.1 +/- 11.6 minutes). This was significantly (p < 0.001) shorter than with M-K (38.7 +/- 30.0 minutes) and M-F-Mz (31.6 +/- 26.6 minutes). Heart rates were greatest in X-K recipients; lowest HR were seen in animals receiving M-F-Mz. Mean arterial blood pressure was significantly higher (about 88 mmHg) during the first hour in the M-K group. During recovery, the greatest hypotension was encountered in the X-K group; minimum values were 53 +/- 12 mmHg. Six of 19 animals in the M-F-Mz group showed a short period of apnoea (30 seconds) immediately after endotracheal intubation. Respiratory frequency was significantly lower in this group (p < 0.001). Highest values for arterial carbon dioxide partial pressures (PaCO(2)) (6.90 +/- 0.87 kPa; 52.5 +/- 6.5 mmHg) occurred after induction of anaesthesia in group M-F-Mz animals. There was a marked decrease in PaO(2) in all three groups (the minimum value 5.28 +/- 0.65 kPa [39.7 +/- 4.9 mmHg] was observed with M-K immediately after injection). Arterial PO(2) was between 26.0 and 43.0 kPa (196 and 324 mmHg) in all groups during O(2) delivery and decreased - but not <7.98 kPa - on its withdrawal. Immediately after drug injection, pH(a) values fell in all groups, with lowest values after 30 minutes (7.23 +/- 0.03 with M-K, 7.28 +/- 0.05 with M-F-Mz, and 7.36 +/- 0.04 with X-K). The X-K animals showed significantly (p < 0.001) higher pH values than medetomidine recipients. During 1 hour of anaesthesia pH values in the medetomidine groups remained below those of the X-K group. CONCLUSIONS: Surgical anaesthesia was induced in most animals receiving medetomidine-based combinations. Arterial blood pressure was maintained at baseline values for about 1 hour after M-K. Transient apnoea occurred with M-F-Mz and mandates respiratory function monitoring. Oxygen enrichment of inspired gases is necessary with all three combinations. Endotracheal intubation is essential in rabbits receiving M-F-Mz. CLINICAL RELEVANCE: The quality of surgical anaesthesia was greatest with M-K. All combinations allowed recoveries of similar duration. It is theoretically possible to antagonize each component of the M-F-Mz combination.


Assuntos
Anestesia/veterinária , Anestésicos Combinados/administração & dosagem , Animais de Laboratório/fisiologia , Coelhos/fisiologia , Animais , Estudos Cross-Over , Feminino , Fentanila/administração & dosagem , Hemodinâmica , Injeções Intramusculares/veterinária , Ketamina/administração & dosagem , Medetomidina/administração & dosagem , Estudos Prospectivos , Resultado do Tratamento , Xilazina/administração & dosagem
10.
Appl Spectrosc ; 59(10): 1194-202, 2005 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-18028616

RESUMO

The vibrational modes of the -NO2 group in more than fifty energetic compounds containing the C-nitro and N-nitro functionalities were observed and then calculated in optimized structures using density functional theory (B3LYP/6-31+G*). The trends in the symmetric and asymmetric stretches and scissor and out-of-plane deformations were explained by these calculations. A previously unreported correlation was found between the nitro group internal bonding angle and its asymmetric stretching frequency. The concept of meta and ortho/para directing groups was applicable to the trends in coupled motions in the nitroaromatic compounds. Both the scissor motion of C-NO2 groups and the out-of-plane deformation of N-NO2 groups were found to be virtually insensitive to the remainder of the molecule. These findings may be useful in analytical methods of explosive detection based on their infrared (IR) spectra.

11.
Int J Oral Maxillofac Implants ; 17(5): 707-14, 2002.
Artigo em Inglês | MEDLINE | ID: mdl-12381072

RESUMO

PURPOSE: Titanium endosseous implants are becoming increasingly important in dentistry because of their excellent long-term results. However, it has been reported that these implants may lead to higher concentrations of titanium, especially in the lungs and kidneys. The purpose of this study, therefore, was to determine whether CO2 laser-assisted decontamination of exposed implant surfaces is associated with an increase in titanium release. MATERIALS AND METHODS: In 6 beagle dogs, a total of 60 implants were placed. After osseointegration and second-stage surgery, peri-implantitis was induced by cotton floss ligatures for 12 weeks. Surgical treatment consisted of granulation tissue removal, including decontamination of the implant surface with 3 different methods. Twenty implants were decontaminated conventionally by an air-powder abrasive for 60 seconds. Another 20 implants were decontaminated by laser treatment alone. The last 20 implants were treated conventionally by air-powder abrasive and then lased. Four months later, fresh tissue samples of various tissues were evaluated by histologic and chemical analysis. RESULTS: Quantitative analysis indicated that titanium accumulation could be detected, especially in the spleen, liver, oral mucosa, regional lymph nodes, lung, and kidney in the beagle dog model. DISCUSSION: The concentrations found did not exceed those previously reported in the literature. CONCLUSION: These results support the hypothesis that CO2 laser-assisted therapy of ailing implants will not result in excessive titanium concentrations in tissues. Accordingly, CO2 lasers appear suitable and safe for peri-implant gingival surgery.


Assuntos
Implantes Dentários , Terapia a Laser , Periodontite/terapia , Titânio/química , Ar , Animais , Dióxido de Carbono , Modelos Animais de Doenças , Desinfecção/métodos , Cães , Microanálise por Sonda Eletrônica , Feminino , Tecido de Granulação/cirurgia , Rim/química , Rim/patologia , Fígado/química , Fígado/patologia , Pulmão/química , Pulmão/patologia , Linfonodos/química , Linfonodos/patologia , Mandíbula/cirurgia , Mucosa Bucal/química , Mucosa Bucal/patologia , Osseointegração , Periodontite/cirurgia , Pós , Análise Espectral , Baço/química , Baço/patologia , Estatística como Assunto , Irrigação Terapêutica/instrumentação , Fatores de Tempo , Titânio/efeitos da radiação
12.
Neurosci Lett ; 324(2): 93-6, 2002 May 17.
Artigo em Inglês | MEDLINE | ID: mdl-11988335

RESUMO

The histological response after intracerebral (IC) injection of superantigen (SAg) was investigated in unprimed Lewis rats. The staphylococcal enterotoxins (SE) A (SEA), and E, but not B or saline, induced a variable perivascular inflammation in the injected hemisphere (6.7 +/- 6.1 cuffs per tissue section with SEA; mean +/- SD). Adoptive transfer of mitogen activated splenocytes (AS) augmented the response to SEA significantly (18.5 +/- 11.4; P<0.05). With or without AS transient bilateral perivascular cuffs were observed around the ventricles and in the corpus callosum up to 3 days after IC injection. The findings demonstrate that local expression of SAg in the brain can cause encephalitis, depending on the number of activated T cells in the circulation.


Assuntos
Encéfalo/imunologia , Quimiotaxia de Leucócito/imunologia , Encefalite/imunologia , Enterotoxinas/imunologia , Baço/imunologia , Superantígenos/imunologia , Linfócitos T/imunologia , Animais , Encéfalo/efeitos dos fármacos , Encéfalo/patologia , Movimento Celular/efeitos dos fármacos , Movimento Celular/imunologia , Artérias Cerebrais/efeitos dos fármacos , Artérias Cerebrais/imunologia , Artérias Cerebrais/patologia , Quimiotaxia de Leucócito/efeitos dos fármacos , Corpo Caloso/efeitos dos fármacos , Corpo Caloso/imunologia , Corpo Caloso/patologia , Relação Dose-Resposta a Droga , Encefalite/induzido quimicamente , Encefalite/microbiologia , Enterotoxinas/farmacologia , Antígenos de Histocompatibilidade Classe II/efeitos dos fármacos , Antígenos de Histocompatibilidade Classe II/imunologia , Vigilância Imunológica/efeitos dos fármacos , Vigilância Imunológica/imunologia , Injeções Intraventriculares , Masculino , Microglia/efeitos dos fármacos , Microglia/imunologia , Microglia/patologia , Fibras Nervosas Mielinizadas/efeitos dos fármacos , Fibras Nervosas Mielinizadas/imunologia , Fibras Nervosas Mielinizadas/patologia , Ratos , Ratos Endogâmicos Lew , Baço/citologia , Baço/transplante , Staphylococcus/imunologia , Staphylococcus/metabolismo , Superantígenos/farmacologia , Linfócitos T/citologia , Linfócitos T/efeitos dos fármacos
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