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2.
Clin Ther ; 39(3): 558-566, 2017 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-28185715

RESUMO

PURPOSE: Oral antidiabetic drugs (OADs) such as pioglitazone and metformin have beneficial effects in patients with nonalcoholic steatohepatitis. We prospectively assessed the effects of OADs on nonalcoholic fatty liver disease (NAFLD) in 886 men with type 2 diabetes mellitus and in a murine model of NAFLD. METHODS: Patients were randomized to receive pioglitazone, metformin, sitagliptin, or a non-OAD (control) for 6 months. All the patients received dietary and exercise guidance once a month during this study. Changes in the liver-to-spleen ratio on computed tomography (CT) and NAFLD-related parameters were measured from baseline to the end of treatment. FINDINGS: The liver/spleen ratio improved significantly in the pioglitazone and metformin groups compared with the control group (both P < 0.01), but not in the sitagliptin group (P = 0.73). The mean changes from baseline were -3.464 ± 10.156%, 19.236 ± 9.896%, 4.783 ± 1.467%, and 1.328 ± 0.802% in the control, pioglitazone, metformin, and sitagliptin groups, respectively. Multivariable analysis showed that the liver/spleen ratio was strongly correlated with high-sensitivity C-reactive protein concentration in the pioglitazone group (F = 9.973; P < 0.01) and abdominal visceral fat volume in the metformin group (F = 6.049; P < 0.05). CONCLUSIONS: Pioglitazone elicited the greatest improvements in features of NAFLD in type 2 diabetes mellitus. (Trial Registration: www.isrctn.org/, ISRCTN33414972, http://www.isrctn.org/).


Assuntos
Diabetes Mellitus Tipo 2/tratamento farmacológico , Hipoglicemiantes/uso terapêutico , Hepatopatia Gordurosa não Alcoólica/tratamento farmacológico , Adulto , Idoso , Biomarcadores/metabolismo , Proteína C-Reativa , Humanos , Masculino , Metformina/uso terapêutico , Pessoa de Meia-Idade , Pioglitazona , Fosfato de Sitagliptina/administração & dosagem , Baço/diagnóstico por imagem , Tiazolidinedionas/administração & dosagem , Tomografia Computadorizada por Raios X
3.
J Thyroid Res ; 2012: 182176, 2012.
Artigo em Inglês | MEDLINE | ID: mdl-22655217

RESUMO

TWO TRABS: TSBAb and TSAb. TSBAb causes hypothyroidism. TSAb causes Graves' hyperthyroidism. TSBAb and TSAb block TSH-binding to cells as TRAb, measured as TSH-binding inhibitory immunoglobulin (TBII). We reevaluate TSBAb and TSAb. We studied TSBAb, TSAb, and TBII over 10 years in 34 TSBAb-positives with hypothyroidism and in 98 TSAb-positives with hyperthyroidism. Half of the 34 TSBAb-positives with hypothyroidism continued to have persistently positive TSBAb, continued to have hypothyroidism, and did not recover from hypothyroidism. Ten of the 98 TSAb-positives with hyperthyroidism continued to have positive TSAb and continued to have hyperthyroidism. TSBAb had disappeared in 15 of the 34 TSBAb-positives with hypothyroidism. With the disappearance of TSBAb, recovery from hypothyroidism was noted in 13 (87%) of the 15 patients. TSAb had disappeared in 73 of the 98 TSAb-positives with hyperthyroidism. With the disappearance of TSAb, remissions of hyperthyroidism were noted in 60 (82%) of the 73. Two of the 34 TSBAb-positives with hypothyroidism developed TSAb-positive Graves' hyperthyroidism. Two of the 98 TSAb-positive Graves' patients with hyperthyroidism developed TSBAb-positive hypothyroidism. TSBAb and TSAb are TRAbs. TSBAb-hypothyroidism and TSAb-hyperthyroidism may be two aspects of one disease (TRAb disease). Two forms of autoimmune thyroiditis: atrophic and goitrous. We followed 34 TSBAb-positive patients with hypothyroidism (24 atrophic and 10 goitrous) over 10 years. All of the 10 TSBAb-positive goitrous patients recovered from hypothyroidism and 19 (79%) of the 24 TSBAb-positive atrophic patients continued to have hypothyroidism.

4.
J Thyroid Res ; 2011: 413026, 2011.
Artigo em Inglês | MEDLINE | ID: mdl-21603170

RESUMO

A 36-year-old woman with postpartum hypopituitarism (Sheehan's syndrome: SS) developed postpartum autoimmune thyroiditis (PPAT). She delivered a baby by Caesarean section (620 mL blood loss). At 1 month post partum, she developed thyrotoxicosis due to painless thyroiditis (autoimmune destructive thyroiditis). She was positive for antithyroid antibodies. Postpartum and hypoadrenalism-induced exacerbation of autoimmune thyroiditis caused the thyrotoxicosis due to autoimmune destructive thyroiditis. ACTH was undetectable. She had ACTH deficiency and secondary hypoadrenalism. Hydrocortisone was started. At 6 months post partum, she was referred to us with hypothyroidism. Thyroxine was administered. She had thyrotoxicosis at 1-2 months post partum and then hypothyroidism. She was diagnosed with PPAT. She had hypopituitarism, ACTH deficiency (secondary hypoadrenalism), low prolactin with agalactia, and low LH with failure to resume regular menses. She had empty sella on MRI. She was diagnosed with SS. Three cases with SS have been reported to develop PPAT. Postpartum immunological rebounds and hypoadrenalism-induced immunological alterations (or a combination of the two) might have been responsible for the PPAT.

5.
Intern Med ; 49(14): 1395-400, 2010.
Artigo em Inglês | MEDLINE | ID: mdl-20647655

RESUMO

A 75-year-old woman was found to be unconscious in hospital. She was febrile with a temperature of 38.4 degrees C. She had hypotension (blood pressure 80/40 mmHg) with serum Na 132 mEq/L and K 5.7 mEq/L (serum Na/K = 23.2), and serum cortisol 0.91 microg/dL, indicative of adrenal failure. She was admitted for the treatment of Graves' hyperthyroidism, and was found to be unconscious in hospital. We encountered a patient with unrecognized adrenocortical disease, in whom development of Graves' hyperthyroidism caused an adrenal crisis. The ACTH stimulation test indicated that she had 21-hydroxylase deficiency (21OHD); after ACTH stimulation, 17-OH-progesterone increased from 0.6 to 10.4 ng/mL (17.3 times), and 17-OH-progesterone/cortisol from 0.0049 to 0.045 (9.2 times). She did not have clinical signs of classical 21OHD. She had non-classical 21OHD (NC21OHD). Development of Graves' hyperthyroidism caused an adrenal crisis in a patient with previously unrecognized NC21OHD. A patient with unrecognized adrenocortical disease developed Graves' hyperthyroidism, which induced an adrenal crisis. She had NC21OHD.


Assuntos
Hiperplasia Suprarrenal Congênita/diagnóstico , Doença de Graves/diagnóstico , Doença de Graves/enzimologia , Esteroide 21-Hidroxilase , Hiperplasia Suprarrenal Congênita/complicações , Hiperplasia Suprarrenal Congênita/enzimologia , Idoso , Diagnóstico Tardio , Feminino , Doença de Graves/etiologia , Humanos , Esteroide 21-Hidroxilase/genética
6.
Intern Med ; 49(7): 665-9, 2010.
Artigo em Inglês | MEDLINE | ID: mdl-20371956

RESUMO

Localized pretibial myxedema (PTM) is a sign of Graves' disease. A 53-year-old man with Graves' disease was admitted with the development of PTM following radioisotope (131)I treatment for Graves' hyperthyroidism. TSH receptor antibody (TRAb) titer was also increased after (131)I treatment. TRAb was measured as thyroid stimulating antibody (TSAb) or TSH-binding inhibitory immunoglobulin (TBII). PTM was noted several months after (131)I treatment. The PTM-development seems to be associated with the increased TRAb-activities. The localized pretibial myxedema was effectively treated with topical steroid (triamcinolone acetonide) ointment application with sealing cover (steroid occlusive dressing technique: steroid ODT). We also report our experience of PTM-treatment with steroid ODT in 5 other PTM patients with positive TRAb. PTM was successfully treated with steroid ODT in two patients. In these two patients, the treatment was started within several months of the appearance of PTM. In the other 4 patients, the treatment was started 5-10 years after the appearance of PTM without any beneficial effects. Early detection and early treatment are necessary for the remission of PTM.


Assuntos
Doença de Graves/tratamento farmacológico , Dermatoses da Perna/tratamento farmacológico , Mixedema/tratamento farmacológico , Curativos Oclusivos , Esteroides/administração & dosagem , Administração Tópica , Doença de Graves/complicações , Doença de Graves/patologia , Humanos , Dermatoses da Perna/etiologia , Dermatoses da Perna/patologia , Masculino , Pessoa de Meia-Idade , Mixedema/etiologia , Mixedema/patologia , Pomadas , Resultado do Tratamento
7.
Gan To Kagaku Ryoho ; 37(4): 743-6, 2010 Apr.
Artigo em Japonês | MEDLINE | ID: mdl-20414040

RESUMO

We report a rare case showing involvement with the cauda equina after autologous peripheral blood stem cell transplantation for primary plasma cell leukemia (PCL). A 55-year-old man was diagnosed with PCL(IgA-k type, stage III)in November of 2006. He was treated with VAD chemotherapy consisting of vincristine, doxorubicin, and dexamethasone. After achieving hematological remission, he received tandem high-dose melphalan supported by autologous peripheral blood stem cell transplantation. Five months after his second transplant, he complained of lumbago and bilateral leg pain. M-protein and Bence-Jones protein were not detected in serum or urine. An axial magnetic resonance imaging study revealed enlargement of the cauda equina nerve roots on T-1 weighted image. A sagittal T-1 weighted gadolinium-enhanced imaging study showed hyperintensities along the cauda equina. Leptomeningeal enhancement was also seen below the level of Th6. A cytological examination of the cerebrospinal fluid (CSF) with May-Giemsa stain showed atypical plasma cells. Immunoelectrophoresis of the CSF revealed monoclonal IgA-k type protein. A diagnosis of central nervous system (CNS)relapse was made. The patient died of pneumonia two months after relapse. It should be kept in mind that CNS relapse can occur during hematological remission in patients with multiple myeloma including PCL.


Assuntos
Cauda Equina/patologia , Leucemia Plasmocitária/patologia , Neoplasias do Sistema Nervoso Periférico/patologia , Biópsia , Evolução Fatal , Humanos , Leucemia Plasmocitária/cirurgia , Imageamento por Ressonância Magnética , Masculino , Pessoa de Meia-Idade , Invasividade Neoplásica , Transplante de Células-Tronco de Sangue Periférico , Neoplasias do Sistema Nervoso Periférico/secundário , Recidiva , Transplante Autólogo
8.
Acta Haematol ; 122(4): 211-5, 2009.
Artigo em Inglês | MEDLINE | ID: mdl-19887777

RESUMO

The development of Burkitt's lymphoma (BL) is uncommon in elderly people. Most treatment-related hematological malignancies are of a myeloid lineage. Only a few cases with BL secondary to cancer treatment have been described. We report a rare case of an elderly patient with radiotherapy-related BL. A 71-year-old Japanese man, who had a past history of oropharyngeal cancer treated with local irradiation 15 years ago, presented with a left mandibular mass in December 2004. A partial mandibulectomy disclosed pathological features consistent with BL. Although the patient was initially treated with intensive chemotherapy, the development of complications precluded further anticancer drug treatment. Rituximab was administered once weekly for 5 consecutive weeks, with resolution of the mandibular mass. He remained in remission without further lymphoma treatment for more than 3 years after diagnosis. Rituximab monotherapy should be considered as a therapeutic option for elderly patients with BL.


Assuntos
Anticorpos Monoclonais/uso terapêutico , Linfoma de Burkitt/etiologia , Linfoma de Burkitt/terapia , Neoplasias Induzidas por Radiação/terapia , Segunda Neoplasia Primária/etiologia , Segunda Neoplasia Primária/terapia , Idoso , Anticorpos Monoclonais Murinos , Antineoplásicos/uso terapêutico , Linfoma de Burkitt/patologia , Humanos , Imageamento por Ressonância Magnética , Masculino , Neoplasias Mandibulares/etiologia , Neoplasias Mandibulares/patologia , Neoplasias Mandibulares/terapia , Neoplasias Induzidas por Radiação/etiologia , Neoplasias Induzidas por Radiação/patologia , Segunda Neoplasia Primária/patologia , Neoplasias Orofaríngeas/radioterapia , Indução de Remissão , Rituximab , Fatores de Tempo
9.
Gan To Kagaku Ryoho ; 36(7): 1195-8, 2009 Jul.
Artigo em Japonês | MEDLINE | ID: mdl-19620817

RESUMO

We report a rare case of human immunodeficiency virus (HIV)- and human herpes virus-8 (HHV-8)-negative primary effusion lymphoma (PEL)-like lymphoma presenting with lymphomatous effusions complicated by cardiac tamponade. A 68-year-old woman was hospitalized with generalized weakness in June 2006. Echocardiogram revealed the presence of pericardial effusion and she had the signs of cardiac tamponade. Urgent pericardial drainage relieved her symptoms. Chest computed tomography showed bilateral pleural effusions along with pericardial effusion. Cytologic findings of both effusions were suggestive of malignancies, including malignant lymphoma. Immunocytochemical studies with a panel of antibodies, including CD20 and CD79a, could not provide a definite diagnosis. Flow cytometric analysis of pleural effusion revealed that tumor cells were positive for CD10 and CD19, but negative for CD20, CD23, surface immunoglobulin, and T-cell associated antigens. Clonal rearrangement of the immunoglobulin heavy chain gene was detected by Southern blot analysis. Polymerase chain reaction proved to be negative for HHV-8. The serology test for HIV was negative. After a diagnosis of HHV-8-negative PEL-like lymphoma, she was treated with CHOP chemotherapy (cyclophosphamide, doxorubicin, vincristine and prednisolone). However, she died of progressive lymphoma 7 months after the diagnosis. PEL-like lymphomas are of B-cell origin. In some cases of PEL-like lymphoma, tumor cells may be negative for representative markers of B-cell phenotype such as CD20 and CD79a.


Assuntos
Tamponamento Cardíaco/complicações , Derrame Pericárdico/complicações , Idoso , Southern Blotting , Feminino , HIV/imunologia , Herpesvirus Humano 8/imunologia , Humanos , Linfoma de Efusão Primária , Derrame Pleural Maligno/complicações , Reação em Cadeia da Polimerase
10.
Intern Med ; 48(6): 475-8, 2009.
Artigo em Inglês | MEDLINE | ID: mdl-19293550

RESUMO

We report a rare case of primary cutaneous diffuse large B-cell lymphoma (DLBCL) with Burkitt-like morphology. A 54-year-old man presented with multiple subcutaneous tumors. Pathological examination showed morphological features resembling Burkitt or Burkitt-like lymphoma (BL/BLL) with high MIB-1 positivity. Cytogenetic studies revealed no 8q24/c-myc translocation. After the diagnosis of Burkitt-like DLBCL, the patient was treated with CODOX-M chemotherapy (cyclophosphamide, doxorubicin, vincristine, cytarabine and methotrexate), which led to durable remission. The present case suggests that short-term, high-intensity chemotherapy used for BL/BLL may be appropriate for primary cutaneous Burkitt-like DLBCL, as well as systemic lymphoma with Burkitt-like morphology.


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Linfoma de Burkitt/patologia , Linfoma Difuso de Grandes Células B/tratamento farmacológico , Linfoma de Burkitt/tratamento farmacológico , Ciclofosfamida/uso terapêutico , Diagnóstico Diferencial , Doxorrubicina/uso terapêutico , Humanos , Linfoma Difuso de Grandes Células B/diagnóstico , Masculino , Metotrexato/uso terapêutico , Pessoa de Meia-Idade , Indução de Remissão/métodos , Vincristina/uso terapêutico
11.
Leuk Lymphoma ; 50(2): 187-95, 2009 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-19197730

RESUMO

Extranodal adult T-cell leukemia/lymphoma (ATLL) of the head and neck is a rare disease. We studied the clinicopathological features of nine patients with ATLL involving extranodal head and neck sites and conducted a literature review. Six patients presented with extranodal mass of the head and neck, whereas three had disseminated diseases. Tumors involved the parotid gland, sinonasal tract, masseter muscle, mandible and skull. Histopathology included diffuse pleomorphic-type (with angiocentric features), Hodgkin-like and anaplastic large cell-type. Five patients with localised disease showed prolonged survival regardless of unfavourable histology and/or aberrant provirus status, including integration of multiple copies or defective provirus. Patients with localised disease documented in the literature, including our study series, had a reduced frequency of elevated lactate dehydrogenase, no hypercalcemia and longer survival. ATLL should be included in the differential diagnosis of extranodal head and neck lymphoma. Localised extranodal ATLL of the head and neck may exhibit indolent clinical behaviours.


Assuntos
Neoplasias de Cabeça e Pescoço/patologia , Leucemia-Linfoma de Células T do Adulto/patologia , Adulto , Idoso , Idoso de 80 Anos ou mais , Feminino , Neoplasias de Cabeça e Pescoço/diagnóstico por imagem , Neoplasias de Cabeça e Pescoço/imunologia , Neoplasias de Cabeça e Pescoço/metabolismo , Humanos , Imuno-Histoquímica , Leucemia-Linfoma de Células T do Adulto/diagnóstico por imagem , Leucemia-Linfoma de Células T do Adulto/imunologia , Leucemia-Linfoma de Células T do Adulto/metabolismo , Imageamento por Ressonância Magnética , Masculino , Pessoa de Meia-Idade , Tomografia Computadorizada por Raios X
12.
World J Gastroenterol ; 14(42): 6584-8, 2008 Nov 14.
Artigo em Inglês | MEDLINE | ID: mdl-19030219

RESUMO

Multiple lymphomatous polyposis (MLP) is an unusual form of non-Hodgkin's lymphoma characterized by polyps throughout the gastrointestinal tract. It has been reported that most MLP are observed in cases with mantle cell lymphoma of B-cell type. We herein present a case of a 66-year-old man with adult T-cell leukemia/lymphoma (ATLL). Colonoscopy revealed MLP throughout the colon and histopathological findings of ATLL cell infiltration. The patient died despite combination of chemotherapy. The literature of manifestations of colonic involvement of ATLL is reviewed and the importance of endoscopic evaluation to differentiate ATLL intestinal lesions from opportunistic infectious enterocolitis is discussed.


Assuntos
Pólipos do Colo/etiologia , Polipose Intestinal/etiologia , Leucemia-Linfoma de Células T do Adulto/complicações , Idoso , Protocolos de Quimioterapia Combinada Antineoplásica , Pólipos do Colo/tratamento farmacológico , Pólipos do Colo/patologia , Colonoscopia , Diagnóstico Diferencial , Evolução Fatal , Humanos , Polipose Intestinal/tratamento farmacológico , Polipose Intestinal/patologia , Leucemia-Linfoma de Células T do Adulto/tratamento farmacológico , Leucemia-Linfoma de Células T do Adulto/patologia , Masculino , Pessoa de Meia-Idade , Falha de Tratamento
13.
Cancer Sci ; 99(11): 2286-94, 2008 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-18771528

RESUMO

Clinical trials for treatment of adult T-cell leukemia (ATL) caused by human T-cell leukemia virus type I (HTLV-I) using all-trans-retinoic acid (ATRA) have shown satisfactory therapeutic responses, although efficacies were limited. Recently, many synthetic retinoids have been developed and among them, a novel synthetic retinoid, Am80 (Tamibarotene) is an RARalpha- and RARbeta-specific retinoid expected to overcome ATRA resistance. The present study examined the inhibitory effects of Am80 on HTLV-I-infected T-cell lines and ATL cells. Am80 had negligible growth inhibition of peripheral blood mononuclear cells but marked growth inhibition of both HTLV-I-infected T-cell lines and ATL cells. Am80 arrested cells in the G1 phase of the cell cycle and induced apoptosis in HTLV-I-infected T-cell lines. It inhibited also the phosphorylation of IkappaBalpha and NF-kappaB-DNA binding, in conjunction with reduction of expression of proteins involved in the G1/S cell cycle transition and apoptosis. Am80 also inhibited the expression of JunD, resulting in suppression of AP-1-DNA binding. Furthermore, severe combined immunodeficient mice with tumors induced by subcutaneous inoculation of HTLV-I-infected T cells, responded to Am80 treatment with partial regression of tumors and no side-effects. These findings demonstrate that Am80 is a potential inhibitor of NF-kappaB and AP-1, and is a potentially useful therapeutic agent against ATL.


Assuntos
Antineoplásicos/farmacologia , Benzoatos/farmacologia , Leucemia-Linfoma de Células T do Adulto/tratamento farmacológico , Tetra-Hidronaftalenos/farmacologia , Animais , Antineoplásicos/uso terapêutico , Benzoatos/uso terapêutico , Ciclo Celular , Divisão Celular , Linhagem Celular Tumoral , Feminino , Vírus Linfotrópico T Tipo 1 Humano/patogenicidade , Humanos , Leucemia-Linfoma de Células T do Adulto/metabolismo , Leucemia-Linfoma de Células T do Adulto/patologia , Camundongos , Camundongos SCID , Tetra-Hidronaftalenos/uso terapêutico
14.
Tohoku J Exp Med ; 216(1): 25-34, 2008 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-18719335

RESUMO

Survivin, a member of the inhibitor of apoptosis protein (IAP) family, has been widely studied because of its aberrant expression in human cancer. Survivin has multiple functions, including cell-cycle regulation at mitosis, inhibition of apoptosis and caspase-independent cytoprotection. Clinical studies have shown that survivin is associated with resistance to treatment and its expression is linked to poor prognosis. Recent studies indicated that Ras pathways up-regulate survivin expression in hematopoietic cells. Here we analyzed downstream pathways of Ras in interleukin-3 (IL-3)-dependent Baf-3 murine-derived pro-B lymphocytic cells that express constitutively active Ras mutants, using signaling pathway-specific inhibitors. Both mitogen-activated protein kinase (MAPK) and phosphatidylinositol-3 kinase (PI3-K) pathways are involved in the induction of survivin. Downstream of PI3-K, the signaling pathway is composed of two kinases, Akt and mammalian target of rapamycin (mTOR) pathways. In the downstream targets of PI3-K, mTOR but not Akt is responsible for survivin expression. Using a counterflow centrifugal elutriator, we observed G2/M phase-dominant survivin expression in Baf-3 cells. Interestingly, constitutively active Ras mutants also induced survivin in a cell cycle-dependent manner. Reporter assays of the survivin gene promoter revealed a transcriptional regulatory cis-acting region that is responsible for Ras signaling, indicating that Ras increases the transcription of the survivin gene through specific enhancer elements. These data illustrate the pathways regulating survivin expression by Ras. Ras activates the MAPK, PI3-K and mTOR pathways, and these signals enhance survivin transcription. Our data will provide the new information about mechanisms of survivin expression by Ras-signalling pathways.


Assuntos
Linfócitos B/metabolismo , Regulação da Expressão Gênica , Genes ras , Proteínas Associadas aos Microtúbulos/biossíntese , Proteína Oncogênica p21(ras)/fisiologia , Transdução de Sinais/fisiologia , Animais , Apoptose/efeitos dos fármacos , Apoptose/fisiologia , Linfócitos B/efeitos dos fármacos , Proteínas de Transporte/fisiologia , Ciclo Celular/fisiologia , Linhagem Celular/efeitos dos fármacos , Linhagem Celular/metabolismo , Cromonas/farmacologia , Elementos Facilitadores Genéticos , Flavonoides/farmacologia , Humanos , Proteínas Inibidoras de Apoptose , Interleucina-3/farmacologia , Sistema de Sinalização das MAP Quinases/efeitos dos fármacos , Camundongos , Proteínas Associadas aos Microtúbulos/genética , Morfolinas/farmacologia , Proteína Oncogênica p21(ras)/genética , Fosfatidilinositol 3-Quinases/fisiologia , Inibidores de Fosfoinositídeo-3 Quinase , Fosfotransferases (Aceptor do Grupo Álcool)/fisiologia , Mutação Puntual , Proteínas Proto-Oncogênicas c-akt/fisiologia , Proteínas Recombinantes de Fusão/fisiologia , Proteínas Repressoras , Transdução de Sinais/efeitos dos fármacos , Sirolimo/farmacologia , Survivina , Serina-Treonina Quinases TOR , Transfecção
15.
Gan To Kagaku Ryoho ; 35(8): 1423-5, 2008 Aug.
Artigo em Japonês | MEDLINE | ID: mdl-18701864

RESUMO

Primary malignant lymphoma of the female genital tract is an extremely rare clinical entity. We report a case of primary non-Hodgkin lymphoma of the uterine cervix. A 68-year-old woman presented with abnormal genital bleeding in May 2002. A coloposcopic examination revealed a mass in the uterine cervix. Magnetic resonance imaging showed a bulky cervical tumor(7.5 x 8 cm)invading the right parametrium and adjacent levator ani muscle. Involvement of pelvic lymph nodes was also observed. The uterine lesion exhibited homogenous hypointensity on T1 weight image and isointense to hyperintense on T2-weight image. No other lesions were detected by the whole-body computed tomography, gallium scintigraphy, and bone marrow examination. Although cytology of the smear from the uterine cervix was nondiagnostic, the histologic examination of the punch biopsy material showed a diffuse proliferation of atypical lymphoid cells. Immunophenotypic studies revealed tumor cells were positive for CD19, CD20, CD30, and k-chain. A diagnosis of diffuse large B-cell lymphoma of the uterine cervix, clinical stage IIE was made. The patient was treated with 6 cycles of cyclophosphamide, doxorubicin, vincristine, and prednisone(CHOP)chemotherapy followed by the involved field irradiation. She remains alive and free of disease more than 5 years after the diagnosis.


Assuntos
Linfoma Difuso de Grandes Células B/patologia , Neoplasias do Colo do Útero/patologia , Idoso , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Biópsia , Terapia Combinada , Feminino , Humanos , Linfoma Difuso de Grandes Células B/tratamento farmacológico , Linfoma Difuso de Grandes Células B/radioterapia , Neoplasias do Colo do Útero/tratamento farmacológico , Neoplasias do Colo do Útero/radioterapia
16.
Gan To Kagaku Ryoho ; 35(8): 1431-4, 2008 Aug.
Artigo em Japonês | MEDLINE | ID: mdl-18701866

RESUMO

We report a Japanese case of human herpes virus-8 (HHV-8)-associated multicentric Castleman disease(MCD) complicated by hemophagocytic syndrome(HPS). A 60-year-old man presented with persistent fever and progressive pancytopenia in June 2004. On physical examination, anemia, icterus, hepatosplenomegaly, and generalized lymphadenopathy were detected. Laboratory findings showed elevated levels of serum ferritin and soluble interleukin-2 receptor. Anti-human immunodeficiency virus (HIV) antibody was negative. Bone marrow aspiration revealed a normocellular marrow with an increased number of hemophagocytic histiocytes. Biopsy of cervical lymph node disclosed pathological features compatible with the plasmablastic variant of Castleman disease. HHV-8 DNA was detected in the specimen from lymph node by polymerase chain reaction. Thus, the diagnosis of HHV-8-associated MCD complicated by HPS was made. The patient was treated with immunotherapy and subsequent chemotherapy. However, he died of bacterial sepsis after one-month therapy. This case report provides some evidence that HHV-8 may be a causative agent of MCD even in HIV-seronegative Japanese patients.


Assuntos
Hiperplasia do Linfonodo Gigante/complicações , Hiperplasia do Linfonodo Gigante/virologia , Herpesvirus Humano 8/fisiologia , Linfo-Histiocitose Hemofagocítica/complicações , Hiperplasia do Linfonodo Gigante/patologia , Humanos , Linfo-Histiocitose Hemofagocítica/patologia , Masculino , Pessoa de Meia-Idade
17.
Diabetes Res Clin Pract ; 80(2): 213-7, 2008 May.
Artigo em Inglês | MEDLINE | ID: mdl-18346809

RESUMO

Catecholamines strongly promote lipolysis and thermogenesis, and play a central role in the regulation of body fat content. The beta1 adrenergic receptor (BAR-1) is a major mediator of catecholamine-induced lipolysis and thermogenesis. To explore whether mutations in the BAR-1 gene contribute to morbid obesity in Japanese, we scanned for mutations in the coding sequence of the gene in 50 morbid obese [body mass index (BMI)>==35.0kg/m(2); 99.7th percentile] Japanese subjects. Direct DNA sequencing was performed following polymerase chain reaction (PCR) amplification. Two common polymorphisms, Gly49Arg and Arg389Ser, were detected in these subjects. The frequencies of these polymorphisms, as determined by PCR-restriction fragment length polymorphism (RFLP) analysis, showed no significant difference between 180 severely obese subjects (BMI>==30.0kg/m(2); 97th percentile) and 132 control (BMI<25.0kg/m(2)) subjects. This study represents the first investigations of genetic variations of BAR-1 in relationship to morbid obesity and suggests mutations in the BAR-1 coding sequence is not likely a major cause of morbid obesity at least in Japanese.


Assuntos
Mutação , Obesidade Mórbida/genética , Obesidade/genética , Polimorfismo de Nucleotídeo Único , Receptores Adrenérgicos beta 1/genética , Substituição de Aminoácidos , Animais , Povo Asiático/genética , Primers do DNA , Variação Genética , Homozigoto , Humanos , Japão , Modelos Animais , Reação em Cadeia da Polimerase , Polimorfismo de Fragmento de Restrição , Ratos
18.
Eur J Endocrinol ; 158(6): 817-22, 2008 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-18322304

RESUMO

OBJECTIVE: Programmed cell death-1 (PD-1) and its ligands (PD-L1 and PD-L2) inhibit T-cell proliferation and activation. This inhibition down-regulates the immune responses. The association of a PD-L1 polymorphism with Graves' disease (GD) was studied. DESIGN: The association of an A/C polymorphism at position 8923 in PD-L1 intron 4 with GD was studied. PATIENTS: The study included 327 GD patients and 192 controls, of which 252 GD patients were followed over 5-10 years. MEASUREMENTS: PD-L1 intron 4 position 8923 A/C polymorphism was typed using the PCR-restriction fragment length polymorphism method. RESULTS: The A/C genotype frequencies were significantly different between GD patients and controls. The A/C and C/C frequencies were higher in GD patients than in controls. The A/A frequencies were lower in GD patients than in controls. C-allele frequency was higher in GD patients than in controls. A total of 252 GD patients were followed over 5-10 years; 200 had discontinued antithyroid drugs (ATD) while 52 continued to take ATD. Of these 200, 176 continued to be in remission and 24 had relapsed into hyperthyroidism. Significant differences in the duration of positive TBII, positive thyroid-stimulating antibodies, and ATD treatment were noted between the patients in remission and those that had relapsed. Significant differences in the A- and C-allele frequencies were noted between the two. The C-allele frequency was higher in GD patients who did not achieve remission than in those who achieved remission. CONCLUSION: An A/C polymorphism at position 8923 in PD-L1 is associated with GD. The PD-L1 polymorphism plays a role in GD development. GD patients with the C allele at position 8923 in PD-L1 gene had difficulty in achieving remission.


Assuntos
Antígenos CD/genética , Povo Asiático/genética , Doença de Graves/genética , Polimorfismo de Nucleotídeo Único , Adolescente , Adulto , Idoso , Antígeno B7-H1 , Feminino , Frequência do Gene , Genótipo , Doença de Graves/etnologia , Humanos , Íntrons/genética , Japão , Masculino , Pessoa de Meia-Idade
19.
Head Neck ; 30(6): 815-20, 2008 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-18023035

RESUMO

BACKGROUND: Adult T-cell leukemia/lymphoma (ATLL) is a highly aggressive T-cell lymphoma and etiologically associated with human T-lymphotropic virus type 1 (HTLV-1). Patients with ATLL commonly present with leukemic changes, systemic lymphadenopathy, and/or extranodal lesion and have very poor prognosis. METHODS AND RESULTS: We describe a rare case of ATLL presenting as an isolated paranasal mass. Southern blot analysis of the biopsied specimens demonstrated multiple integration bands of HTLV-1 provirus of different intensities. Chemotherapy resulted in complete resolution of the paranasal mass. Thereafter, the patient showed an indolent clinical course with leukemic changes and pulmonary and cutaneous ATLL lesions and remains alive more than 5 years from diagnosis. CONCLUSION: ATLL should be included in the differential diagnosis of sinonasal lymphoma, although the event is rare. Multiple HTLV-1 provirus integrations of different intensities may be indicative of good prognosis for ATLL.


Assuntos
Vírus Linfotrópico T Tipo 1 Humano/fisiologia , Leucemia-Linfoma de Células T do Adulto/diagnóstico , Neoplasias dos Seios Paranasais/diagnóstico , Provírus/fisiologia , Adulto , Humanos , Leucemia-Linfoma de Células T do Adulto/terapia , Leucemia-Linfoma de Células T do Adulto/virologia , Masculino , Neoplasias dos Seios Paranasais/terapia , Neoplasias dos Seios Paranasais/virologia , Integração Viral
20.
Expert Rev Clin Immunol ; 4(2): 221-37, 2008 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-20477052

RESUMO

Hashimoto described four patients with goiter. The histology of the goiter was characterized by diffuse lymphocytic infiltration, fibrosis and epithelial cell destruction. Thyroglobulin antibody (TGAb) and thyroid peroxidase antibody (TPOAb) have been used to diagnose Hashimoto's thyroiditis. Patients with positive TGAb and/or TPOAb have been assumed to have Hashimoto's thyroiditis. Approximately 10% of those with positive TGAb and/or TPOAb have hypothyroidism. There are two types of autoimmune thyroiditis: goitrous Hashimoto's thyroiditis and atrophic thyroiditis. The latter patients have blocking antibody (thyroid-stimulating hormone [TSH]-stimulation blocking antibody [TSBAb]). TSBAb is a TSH-receptor antibody (TRAb). TSBAb causes thyroid atrophy and hypothyroidism. TGAb and/or TPOAb do not necessarily cause hypothyroidism. Hypothyroid patients with Hashimoto's thyroiditis usually receive life-long l-thyroxine therapy. However, spontaneous recovery from hypothyroidism has been reported. Patients who had Hashimoto's hypothyroidism and then Graves' hyperthyroidism (and vice versa), have also been reported. Hashimoto's hypothyroidism and Graves' hyperthyroidism could be the opposite spectrums of one disease.

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