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1.
Arch Gynecol Obstet ; 285(3): 887-90, 2012 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-22048784

RESUMEN

INTRODUCTION: Cervical dilatation and/or uterine evacuation and curettage (D/E&C) is the most commonly performed and safest gynecological procedure. Although procedure-related uterine perforation is rare, this condition may require surgical intervention. Ultrasound examination and computed tomography are useful for diagnosing such perforations with incarceration of an intra-abdominal organ. However, the use of magnetic resonance imaging (MRI) for detecting postabortal uterine damage has seldom been discussed in the literature. CASE REPORT: A 31-year-old woman was referred to our department for lower abdominal pain and a small amount of vaginal bleeding 28 days after D/E&C for a missed abortion. Transvaginal ultrasound examination showed the presence of a hyperechogenic structure in the anterior wall of the uterine body, which was verified to be fatty tissue by MRI, particularly on the fat-suppressed T1-weighted images. An emergency laparotomy showed a uterine perforation with omentum incarceration. After dissecting the omental loop, the uterine perforation site was incised, and the involved omental tissue was debrided appropriately. DISCUSSION: To our knowledge, this is the first report wherein MRI was used for the detection of incarcerated omental fat within the uterus. Delayed presentation of uterine perforation may be observed 1 month or more after D/E&C, although such a finding is extremely rare. Therefore, postabortal follow-up bimanual vaginal examination using transvaginal ultrasonography is recommended. The current study indicates the usefulness of MRI when myometrial perforation with or without incarceration of an extrauterine organ is suspected.


Asunto(s)
Dilatación y Legrado Uterino/efectos adversos , Imagen por Resonancia Magnética , Epiplón/cirugía , Perforación Uterina/diagnóstico , Perforación Uterina/etiología , Dolor Abdominal/diagnóstico , Dolor Abdominal/diagnóstico por imagen , Dolor Abdominal/cirugía , Adulto , Desbridamiento , Femenino , Humanos , Laparotomía , Ultrasonografía , Hemorragia Uterina/diagnóstico , Hemorragia Uterina/diagnóstico por imagen , Hemorragia Uterina/cirugía , Perforación Uterina/diagnóstico por imagen , Perforación Uterina/cirugía
2.
Int J Womens Health ; 3: 15-8, 2011 Jan 17.
Artículo en Inglés | MEDLINE | ID: mdl-21339933

RESUMEN

Mycoplasma species cannot be identified by routine bacteriological culture methods and are resistant to common antimicrobial agents. Mycoplasma hominis usually colonizes the lower urogenital tract and causes pyelonephritis, pelvic inflammatory disease, chorioamnionitis, rupture of fetal membranes, preterm labor, postpartum fever, postabortal fever, and neonatal infection. This organism is highly prevalent in cervicovaginal cultures of sexually active women. M. hominis, M. genitalis, Ureaplasma urealyticum, and U. parvum may invade and infect placental and fetal tissues, leading to adverse pregnancy outcomes. M. hominis occasionally causes nongenitourinary infection of the blood, wounds, central nervous system, joints, or respiratory tract. We present a case of a 27-year-old woman who developed abdominal wound hematoma and abscess after cesarean section. The wound was drained, but her high fever persisted, in spite of antibiotic treatment using flomoxef sodium and imipenem·cilastatin sodium. Because the exudate exhibited M. hominis growth in an anaerobic environment, we administered the quinolone ciprofloxacin. This therapy resolved her fever, and her white blood cell count and C-reactive protein level diminished to the normal ranges. To our knowledge, there are four published articles regarding the isolation of M. hominis from postcesarean incisions. Based on the current study and the literature, infection by this pathogen may cause hematoma formation with or without abscess after cesarean section or in immunosuppressed postoperative patients. In such cases, physicians may need to suspect Mycoplasma infection and initiate appropriate antibacterial treatment as soon as possible in order to avoid persistent fever.

3.
Int J Gynecol Cancer ; 20(4): 611-6, 2010 May.
Artículo en Inglés | MEDLINE | ID: mdl-20686381

RESUMEN

INTRODUCTION: To determine the long-term effect of neoadjuvant chemotherapy with paclitaxel and carboplatin on a weekly schedule followed by radical surgery for patients with locally advanced cervical cancer. MATERIALS AND METHODS: Thirty patients with stage IB2 to IIIB uterine cervical cancer were treated with paclitaxel (60 mg/m) and carboplatin (area under the curve, 2-an area under the time-concentration curve of 2 mg x min/mL based on creatinine clearance) every week for 6 cycles. A radical hysterectomy was performed 6 days after the final administration of neoadjuvant chemotherapy. The patients were followed up, and 5-year progression-free survival (PFS) and overall survival (OS) were evaluated. RESULTS: Of 30 patients, 28 were followed up. The median follow-up period was 55.6 months (range, 26-83 months). An objective response (complete response + partial response) to the treatment was observed in 26 patients (87%; 95% confidence interval, 70%-95%). Two had complete response, 4 had stable disease, and the remaining patients had partial response; progressive disease was not seen in this study. A radical hysterectomy was performed in 28 patients without delay. Thirteen patients with high-risk factors received radiotherapy after surgery. The 5-year PFS and OS rates were 78.6% and 81.8%, respectively. The 5-year PFS and OS for patients with stage IB2 to IIB cervical cancer were 79.2% and 83.1%, respectively, which were comparable with those in the concurrent chemoradiation therapy study previously reported. There was no significant correlation in survival between preoperative staging and cell type, whereas larger initial tumor size and lymph node metastasis tended to be negatively correlated with survival. CONCLUSIONS: Neoadjuvant chemotherapy with paclitaxel and carboplatin on a weekly schedule followed by radical surgery for patients with locally advanced cervical cancer is a promising mode of therapy that may improve the prognosis. It would be worthwhile to conduct larger-scale trials for comparison with the results of the chemoradiation therapy study.


Asunto(s)
Adenocarcinoma/terapia , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Carcinoma Adenoescamoso/terapia , Carcinoma de Células Escamosas/terapia , Histerectomía , Terapia Neoadyuvante , Neoplasias del Cuello Uterino/terapia , Adenocarcinoma/patología , Adulto , Anciano , Carboplatino/administración & dosificación , Carcinoma Adenoescamoso/patología , Carcinoma de Células Escamosas/patología , Terapia Combinada , Femenino , Estudios de Seguimiento , Humanos , Persona de Mediana Edad , Estadificación de Neoplasias , Paclitaxel/administración & dosificación , Tasa de Supervivencia , Factores de Tiempo , Resultado del Tratamiento , Neoplasias del Cuello Uterino/patología
4.
Int J Gynecol Cancer ; 19(4): 484-8, 2009 May.
Artículo en Inglés | MEDLINE | ID: mdl-19509540

RESUMEN

Paclitaxel and carboplatin are commonly used and well-tolerated agents for gynecologic malignancies. The persistence of platinum in human tissues for 14 days and the long-term retention of platinum in tissues for up to 17 months have been reported. Paclitaxel remains in human uterine cervical cancer tissues for 6 days. These findings prompted us to determine the retention of paclitaxel and carboplatin in human uterine cervical carcinoma, endometrial carcinoma, ovarian carcinoma, and pelvic lymph nodes to establish baseline parameters and guide the development of more effective treatment interventions. Thirty patients with uterine or ovarian carcinomas were treated with intravenous weekly paclitaxel-carboplatin chemotherapy before surgery. The concentrations of these agents in carcinoma tissue, normal cervical, myometrial and ovarian tissues, and pelvic lymph nodes were measured 5 days after the final administration. Paclitaxel was specifically retained in cervical, endometrial, and ovarian carcinoma tissues but was not detected in lymph nodes. In contrast to paclitaxel, carboplatin was readily detectable with similar levels in all tumor-associated and normal host tissues. In addition, a low paclitaxel concentration in cervical carcinoma tissue was significantly associated with short progression-free survival and overall survival. Further studies are needed to clarify the tissue distribution of anticancer drugs in humans and promote optimal treatment strategies enhancing paclitaxel lymphatic targeting.


Asunto(s)
Protocolos de Quimioterapia Combinada Antineoplásica/farmacocinética , Neoplasias de los Genitales Femeninos/metabolismo , Paclitaxel/farmacocinética , Adulto , Anciano , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Carboplatino/administración & dosificación , Carboplatino/farmacocinética , Femenino , Neoplasias de los Genitales Femeninos/tratamiento farmacológico , Neoplasias de los Genitales Femeninos/cirugía , Humanos , Infusiones Intravenosas , Ganglios Linfáticos/metabolismo , Persona de Mediana Edad , Ovario/metabolismo , Paclitaxel/administración & dosificación , Útero/metabolismo
5.
Int J Gynecol Cancer ; 19(2): 208-13, 2009 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-19395995

RESUMEN

Junctional adhesion molecule A (JAM-A) is involved in cell-cell contact and tight junction formation. Loss of cell adhesion molecules may be associated with high histologic grade and invasiveness of endometrial carcinoma. We attempted to determine JAM-A expression in human endometrial carcinoma and its correlations with pathologic features, stage, and survival. Junctional adhesion molecule A expression in human endometrial carcinoma was evaluated by immunohistochemistry. In addition, we cultured human well and poorly differentiated endometrial adenocarcinoma cell lines, Ishikawa cells, and KLE in 3-dimensional basement membrane preparation, and JAM-A expression in these cells was assessed by real-time reverse transcription-polymerase chain reaction and immunohistochemistry. Junctional adhesion molecule A immunostaining intensity was negatively correlated with histologic grade (tau = -0.420, P < 0.0001), myometrial invasion (tau = -0.306, P < 0.01), and stage (tau = -0.383, P < 0.0001). Low JAM-A immunostaining intensity was associated with positive vascular space involvement (P < 0.01). Moreover, low immunostain intensity was significantly (P < 0.0001) related to low overall survival rate and progression-free survival rate. Additionally, in our 3-dimensional epithelial cell culture, JAM-A expression in poorly differentiated adenocarcinoma was significantly lower than that in well-differentiated adenocarcinoma (P < 0.001). Junctional adhesion molecule A expression seems to be reduced in high-grade or advanced endometrial carcinoma and may be a prognostic factor.


Asunto(s)
Adenocarcinoma/metabolismo , Moléculas de Adhesión Celular/biosíntesis , Neoplasias Endometriales/metabolismo , Inmunoglobulinas/biosíntesis , Adenocarcinoma/patología , Adulto , Anciano , Línea Celular Tumoral , Neoplasias Endometriales/patología , Femenino , Humanos , Inmunohistoquímica , Persona de Mediana Edad , Receptores de Superficie Celular
6.
J Reprod Med ; 52(10): 965-7, 2007 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-17977177

RESUMEN

BACKGROUND: Rupture of an ovarian cyst may cause chemical peritonitis. When an ovarian cyst ruptures spontaneously, an emergency operation is usually performed, and the chemical peritonitis is alleviated by irrigating the abdominal cavity. This appears to be the only report of prolonged chemical peritonitis. CASE: A spontaneously ruptured ovarian mature cystic teratoma was left untreated for >2 weeks, and chemical peritonitis lasted for 1 year. The peritonitis required administration of a synthetic adrenal corticosteroid and an immunosuppressive antimetabolite. CONCLUSION: It is important to perform an operation immediately when spontaneous rupture of an ovarian cyst is suspected. For therapeutic purposes, spilled ovarian cyst fluid should be eliminated as soon as possible to prevent prolonged chemical peritonitis.


Asunto(s)
Neoplasias Ováricas/complicaciones , Peritonitis/etiología , Teratoma/complicaciones , Antimetabolitos/uso terapéutico , Femenino , Glucocorticoides/uso terapéutico , Humanos , Inmunosupresores/uso terapéutico , Persona de Mediana Edad , Peritonitis/tratamiento farmacológico , Peritonitis/cirugía , Rotura Espontánea , Factores de Tiempo
7.
Maturitas ; 56(2): 142-52, 2007 Feb 20.
Artículo en Inglés | MEDLINE | ID: mdl-16962266

RESUMEN

OBJECTIVES: To investigate the in vitro effects of five progestogens commonly used in hormone replacement therapy (HRT) on estrogen-metabolizing enzymes in human breast cancer cells. METHODS: The human hormone-dependent breast cancer cell lines T47D, MCF-7, and MCF-7aro were cultured with estradiol (E(2)) and progestogens. The mRNA levels of estrogen-metabolizing enzymes were determined by RT-PCR or Northern blot, and enzyme activities by radiolabeled substrates. Cell proliferation was measured by bromodeoxyuridine incorporation. In vitro models for continuous combined regimen (CCR) and sequential combined regimen (SCR) were established to mimic the in vivo conditions of HRT. RESULTS: Medroxyprogesterone acetate (MPA) plus E(2) (10(-8)M) stimulated the mRNA levels and activities of estrogen-activating enzymes aromatase (at 10(-8)M MPA), 17beta-hydroxysteroid dehydrogenase type 1 (17betaHSD1) (at 10(-6)M), and sulfatase (at 10(-8) to 10(-6)M) compared to E(2) only. Progesterone also stimulated enzyme activity, but to a lower magnitude. Levonorgestrel, norethindrone, and dienogest showed no enzyme stimulation. The estrogen-inactivating enzymes 17beta-hydroxysteroid dehydrogenase type 2 and sulfotransferase were not affected by any of the progestogens tested. However, all the progestogens (at 10(-8) to 10(-6)M) inhibited E(2)-stimulated cell proliferation. While increased aromatase and 17betaHSD1 activities were observed in the CCR model, no significant enzyme stimulation was observed in the SCR model. CONCLUSIONS: The present study suggested that progestogens exert different actions on estrogen-metabolizing enzymes in breast cancer cells dependent on the specific progestogen and regimen used. Further studies are needed to elucidate whether MPA, a progestogen currently used in HRT, leads to a higher risk of breast cancer development than other progestogens.


Asunto(s)
17-Hidroxiesteroide Deshidrogenasas/metabolismo , Aromatasa/metabolismo , Neoplasias de la Mama/enzimología , Progestinas/farmacología , Esteril-Sulfatasa/metabolismo , Neoplasias de la Mama/patología , Proliferación Celular/efectos de los fármacos , Relación Dosis-Respuesta a Droga , Esquema de Medicación , Combinación de Medicamentos , Humanos , Acetato de Medroxiprogesterona/administración & dosificación , Relación Estructura-Actividad , Células Tumorales Cultivadas
8.
J Soc Gynecol Investig ; 13(5): 372-7, 2006 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-16725353

RESUMEN

OBJECTIVE: The peroxisome proliferator-activated receptor-gamma (PPAR-gamma) is a nuclear hormone receptor that plays an important role in many diseases. This study investigated whether two polymorphisms (Pro12Ala in exon B and C161T in exon 6) of the PPAR-gamma2 gene are related to adenomyosis, endometriosis, or leiomyomata. METHODS: A total of 390 patients with adenomyosis, endometriosis, and/or leiomyomata were classified into four groups: 103 patients with adenomyosis (21 adenomyosis only and 82 adenomyosis with endometriosis and/or leiomyomata), 95 patients with endometriosis only, 100 patients with leiomyomata only, and 92 patients with endometriosis and leiomyomata. RESULTS: There was no association between distribution of genotype or allele frequencies for the PPAR-gamma Pro12Ala polymorphism and the presence of adenomyosis, endometriosis, and/or leiomyomata. However, compared with results for controls, the PPAR-gamma 161CC genotype and 161C allele frequencies were significantly increased in patients with adenomyosis (genotype: chi2 = 8.185, corrected P value [Pc] = .0169; allele: chi2 = 8.337, Pc = .0155) and in patients with endometriosis (genotype: chi2 = 6.748, Pc = .0375; allele: chi2 = 6.413, Pc = .0453). CONCLUSION: The results suggest that the PPAR-gamma 161CC genotype could be a genetic risk factor for adenomyosis and endometriosis, whereas the Pro12Ala polymorphism was not associated with these estrogen-dependent benign uterine diseases in a Japanese population.


Asunto(s)
Endometriosis/genética , Leiomioma/genética , PPAR gamma/genética , Polimorfismo Genético , Neoplasias Uterinas/genética , ADN/sangre , Femenino , Frecuencia de los Genes , Genotipo , Humanos , Japón
9.
Hum Reprod ; 20(7): 1999-2003, 2005 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-15890727

RESUMEN

BACKGROUND: The aim of this study was to evaluate the diagnostic significance of CA-125 for endometriosis without ovarian endometriomas. METHODS: Preoperative serum CA-125 levels were measured in 775 consecutive women diagnosed by laparoscopy or laparotomy with endometriosis, adenomyosis, leiomyomas, or normal pelvis. RESULTS: Receiver operating characteristic curve analysis revealed that the area under the curve for endometriosis without endometriomas was 0.788, significantly smaller than that for endometriosis with endometriomas (0.935, P < 0.05). In diagnosis of endometriosis without endometriomas, both the maximal accuracy of 78.8% and the maximal diagnostic value of 61.2% were obtained at the cutoff value of 20 U/mL. Negative predictive value was 78.0% at the cutoff value of 20 U/mL, whereas positive predictive value was 92.9% at the cutoff value of 30 U/mL. This range is clearly superior to the empirical single cutoff of 35 U/mL. CONCLUSIONS: In the diagnosis of endometriosis without endometriomas, combined use of two cutoff values for CA-125, 20 and 30 U/mL, provides improved diagnostic performance. However, the accuracy of using only CA-125 testing for diagnosis is still limited. Serum CA-125 testing can be done during initial screenings of women with possible endometriosis.


Asunto(s)
Antígeno Ca-125/sangre , Endometriosis/diagnóstico , Endometriosis/inmunología , Adulto , Estudios de Casos y Controles , Femenino , Humanos , Laparoscopía , Laparotomía , Leiomioma/diagnóstico , Leiomioma/inmunología , Enfermedades del Ovario/diagnóstico , Enfermedades del Ovario/inmunología , Neoplasias Uterinas/diagnóstico , Neoplasias Uterinas/inmunología
10.
J Clin Endocrinol Metab ; 90(1): 529-37, 2005 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-15507512

RESUMEN

Allograft inflammatory factor-1 (AIF-1) is a cytokine originally identified in rat cardiac allografts with chronic rejection. AIF-1 is expressed in various human immune-related tissues and is thought to play a role in inflammatory responses and the immune activation and function of macrophages. Expression has also been shown in human placentas and bovine embryos, suggesting that AIF-1 may be involved in reproductive function. Immune factors are thought to be involved in the pathogenesis of endometriosis. High concentrations of activated macrophages and various cytokines have been found in the peritoneal fluid of patients with endometriosis. In the current work we examined the expression of AIF-1 in human eutopic endometrium and endometriosis, and measured AIF-1 in peritoneal fluid samples from women with and without endometriosis. RT-PCR, Western blot analysis, and immunohistochemistry showed that AIF-1 mRNA and protein were expressed both in eutopic endometrium and in endometriotic tissue. In eutopic endometrium, expression was greater in the late secretory and menstrual phases than in other phases of the menstrual cycle (P < 0.01). AIF-1 protein was present in greater amounts in peritoneal fluid from patients with endometriosis than in women without it (P < 0.01), and its concentration correlated with the Revised American Society for Reproductive Medicine score (rs = 0.693; P < 0.0001). Peritoneal macrophages from endometriosis patients secreted more AIF-1 than those from unaffected women (P < 0.05). AIF-1 release from macrophages was stimulated by IL-1beta (P < 0.01) and interferon-gamma (P < 0.05). These results demonstrate for the first time that AIF-1 is expressed in eutopic endometrium and endometriotic tissue, suggesting that AIF-1 is one cytokine in the local network involved in the onset of menstruation. AIF-1 derived from peritoneal macrophages may also possibly play a significant role in the pathophysiology and progression of endometriosis.


Asunto(s)
Proteínas de Unión al ADN/fisiología , Endometriosis/metabolismo , Endometrio/metabolismo , Adulto , Líquido Ascítico/química , Proteínas de Unión al Calcio , Citocinas/metabolismo , Proteínas de Unión al ADN/análisis , Proteínas de Unión al ADN/genética , Progresión de la Enfermedad , Endometriosis/etiología , Femenino , Humanos , Macrófagos Peritoneales/metabolismo , Proteínas de Microfilamentos , ARN Mensajero/análisis , Reacción en Cadena de la Polimerasa de Transcriptasa Inversa
11.
Am J Reprod Immunol ; 51(5): 352-7, 2004 May.
Artículo en Inglés | MEDLINE | ID: mdl-15212671

RESUMEN

PROBLEM: Tumor necrosis factor (TNF)-alpha is a major cytokine involved in inflammatory and immune function. The aim of this study was to investigate whether polymorphisms at positions -1031, -863 and -857 in the TNF gene promoter region (TNFA) and TNF receptor type 2 gene (TNFR2) are responsible in part for genetic susceptibility to endometriosis. METHODS OF STUDY: TNFA and TNFR2 polymorphisms were determined in 123 patients with endometriosis and 165 fertile healthy women by the polymerase chain reaction (PCR) - preferential homoduplex formation assay and PCR-restriction fragment length polymorphism, respectively. RESULTS: The frequency of the TNFA-U01 haplotype was increased significantly in patients with endometriosis compared with controls (P = 0.045, OR = 1.45). The TNFA-U01 haplotype was strongly associated with HLA-B*0702. No difference was found in TNFR2 polymorphism between patients and controls. CONCLUSION: Our results indicated that TNFA promoter polymorphism was associated with susceptibility to endometriosis. However, this association was not independent of HLA-class I polymorphisms.


Asunto(s)
Antígenos CD/genética , Endometriosis/genética , Polimorfismo de Nucleótido Simple/genética , Receptores del Factor de Necrosis Tumoral/genética , Factor de Necrosis Tumoral alfa/genética , Adulto , Estudios de Casos y Controles , ADN/genética , ADN/aislamiento & purificación , Interpretación Estadística de Datos , Endometriosis/clasificación , Femenino , Frecuencia de los Genes , Predisposición Genética a la Enfermedad/genética , Genotipo , Antígenos HLA-B/genética , Antígeno HLA-B7 , Haplotipos/genética , Heterocigoto , Homocigoto , Humanos , Leucocitos/metabolismo , Persona de Mediana Edad , Reacción en Cadena de la Polimerasa , Regiones Promotoras Genéticas/genética , Receptores Tipo II del Factor de Necrosis Tumoral
12.
Hum Reprod ; 19(8): 1765-9, 2004 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-15166131

RESUMEN

BACKGROUND: Endometriosis is a multifactorial disease with possible genetic predisposition and involvement of environmental factors in its pathogenesis. Cytokines may play important roles in the pathogenesis of endometriosis. The aim of this study was to investigate whether the interferon-gamma gene (IFNG) CA-repeat and interleukin-4 (IL-4) promoter region (-590C/T) polymorphisms may be responsible in part for genetic susceptibility to endometriosis. METHODS: IFNG CA-repeat and IL-4 -590C/T polymorphisms were determined for 185 patients with endometriosis and 176 healthy fertile women by quantitative genescan technology and PCR-restriction fragment length polymorphism analysis, respectively. Patients with endometriosis were analysed further according to their stage of disease, the presence or absence of chocolate cysts and whether or not their disease was associated with adenomyosis and/or lyomyomata. RESULTS: The global IFNG allele frequencies in the patients with endometriosis were significantly different from those in the control women (chi2 = 12.964, 6 df, P = 0.0436). The difference was due to an increase of the a13 (114 bp) allele in patients with endometriosis (chi2 = 10.222, P = 0.0088, corrected P = 0.0352, odds ratio = 1.48, 95% confidence interval = 1.10-1.98). There were no differences in IL-4 -590C/T genotypes and allele frequencies between control women and all patients with endometriosis or between control women and each subgroup of patients with endometriosis. CONCLUSION: The results suggest that the IFNG CA-repeat polymorphism is associated with susceptibility to endometriosis in a Japanese population.


Asunto(s)
Endometriosis/genética , Interferón gamma/genética , Interleucina-4/genética , Polimorfismo Genético , Adulto , Repeticiones de Dinucleótido , Endometriosis/epidemiología , Femenino , Frecuencia de los Genes , Predisposición Genética a la Enfermedad , Genotipo , Humanos , Japón/epidemiología , Persona de Mediana Edad , Regiones Promotoras Genéticas/genética , Factores de Riesgo
13.
J Steroid Biochem Mol Biol ; 88(2): 183-9, 2004 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-15084350

RESUMEN

We examined the immunohistochemical expression of aromatase cytochrome P450 (P450arom), estrogen receptor (ER), progesterone receptor (PR), and Ki-67 in postoperative uterine sarcomas (n = 31) and the corresponding eutopic endometria (n = 20) to evaluate the relationships between the endocrine character of uterine sarcomas and the clinical features. In sarcoma tissues, P450arom was detected in 55% of cases, ER in 42%, PR in 42%, and Ki-67 in 90%. In eutopic endometria, P450arom was detected in 60% of cases, ER in 60%, and PR in 35%. There were correlations in the steroid-related proteins between the tumors and endometria (P = 0.001-0.026). The positivity of endometrial P450arom (P = 0.04) and ER (P = 0.006) was higher in surviving patients than dead patients regardless of the menstrual state. The results demonstrate correlation between the expression of P450arom, ER, and PR in tumors and eutopic endometria. Intense expression of the steroid-related proteins was associated with better survival.


Asunto(s)
Aromatasa/metabolismo , Receptores de Estrógenos/metabolismo , Receptores de Progesterona/metabolismo , Sarcoma/metabolismo , Neoplasias Uterinas/metabolismo , Adulto , Anciano , Anciano de 80 o más Años , Femenino , Humanos , Inmunohistoquímica , Persona de Mediana Edad , Sarcoma/enzimología , Sarcoma/patología , Neoplasias Uterinas/enzimología , Neoplasias Uterinas/patología
14.
J Reprod Med ; 48(8): 652-4, 2003 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-12971150

RESUMEN

BACKGROUND: Giant ovarian tumors are rarely seen in modern surgical practice. Cardiopulmonary complications associated with the removal of such tumors are serious problems. CASE: An ovarian tumor weighing 55 kg was removed from a 33-year-old woman without cardiorespiratory complications using preoperative drainage and abdominoplasty by excision of the excess skin. CONCLUSION: Preoperative drainage before and abdominoplasty after removal of giant ovarian tumors are effective.


Asunto(s)
Abdomen/cirugía , Cistoadenoma Mucinoso/cirugía , Drenaje , Neoplasias Ováricas/cirugía , Cuidados Preoperatorios , Adulto , Femenino , Humanos
15.
Nat Mater ; 2(10): 661-3, 2003 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-14502274

RESUMEN

Bulk metallic glasses--formed by supercooling the liquid state of certain metallic alloys--have potentially superior mechanical properties to crystalline materials. Here, we report a Co(43)Fe(20)Ta(5.5)B(31.5) glassy alloy exhibiting ultrahigh fracture strength of 5,185 MPa, high Young's modulus of 268 GPa, high specific strength of 6.0 x 10(5) Nm kg(-1) and high specific Young's modulus of 31 x 10(6) Nm kg(-1). The strength, specific strength and specific Young's modulus are higher than previous values reported for any bulk crystalline or glassy alloys. Excellent formability is manifested by large tensile elongation of 1,400% and large reduction ratio in thickness above 90% in the supercooled liquid region. The ultrahigh-strength alloy also exhibited soft magnetic properties with extremely high permeability of 550,000. This alloy is promising as a new ultrahigh-strength material with good deformability and soft magnetic properties.


Asunto(s)
Aleaciones/química , Cobalto/química , Magnetismo , Ensayo de Materiales , Aleaciones/síntesis química , Fuerza Compresiva , Elasticidad , Movimiento (Física) , Estrés Mecánico , Temperatura , Resistencia a la Tracción
16.
Fertil Steril ; 79 Suppl 1: 735-42, 2003 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-12620485

RESUMEN

OBJECTIVE: To investigate whether GnRH agonists or danazol therapy normalizes estrogen metabolism in the eutopic endometrium of women with endometriosis, adenomyosis, or leiomyomas. DESIGN: Prospective clinical study. SETTING: University hospital. PATIENT(S): Fifty-three women with endometriosis, adenomyosis, or leiomyomas. INTERVENTION(S): Patients received GnRH agonist or danazol. Biopsy samples of the endometrium were obtained before and after endocrine therapy. Nontreated endometrial explants were cultured in the presence of either drug. MAIN OUTCOME MEASURE(S): Reverse transcription polymerase chain reaction-Southern blot and immunohistochemical analyses of the endometrial expression of aromatase cytochrome P450, estrogen receptor, progesterone receptor, and Ki-67. Nontreated endometrial explants were cultured in the presence of either drug. RESULT(S): Messenger RNA and protein of aromatase cytochrome P450 were greatly reduced in the eutopic endometrium of patients treated with GnRH agonist for 2 months or more or with danazol for 1 month or more. Culture of endometrial explants with GnRH agonist (10(-9)-10(-7) M) did not change the amount of aromatase cytochrome P450, whereas danazol (10(-7)-10(-6) M) efficiently reduced aromatase cytochrome P450 expression. CONCLUSION(S): Therapy with GnRH agonist or danazol decreases expression of aromatase cytochrome P450 in diseased eutopic endometrium. Endocrine therapy normalized in part the impaired hormonal expression of the eutopic endometrium. GnRH agonist reduced aromatase cytochrome P450 expression mainly by promoting a hypoestrogenic state, whereas danazol reduced aromatase cytochrome P450 in part by direct action on the eutopic endometrium.


Asunto(s)
Aromatasa/biosíntesis , Danazol/farmacología , Antagonistas de Estrógenos/farmacología , Estrógenos/metabolismo , Hormona Liberadora de Gonadotropina/agonistas , Enfermedades Uterinas/enzimología , Adulto , Antineoplásicos Hormonales/farmacología , Aromatasa/genética , Aromatasa/metabolismo , Buserelina/farmacología , Endometriosis/tratamiento farmacológico , Endometriosis/enzimología , Endometriosis/metabolismo , Femenino , Humanos , Técnicas In Vitro , Antígeno Ki-67/metabolismo , Leiomioma/tratamiento farmacológico , Leiomioma/enzimología , Leiomioma/metabolismo , Leuprolida/farmacología , Persona de Mediana Edad , Estudios Prospectivos , ARN Neoplásico/química , ARN Neoplásico/genética , Receptores de Estrógenos/metabolismo , Receptores de Progesterona/metabolismo , Enfermedades Uterinas/tratamiento farmacológico , Enfermedades Uterinas/metabolismo , Neoplasias Uterinas/tratamiento farmacológico , Neoplasias Uterinas/enzimología , Neoplasias Uterinas/metabolismo
17.
Hum Reprod ; 18(4): 715-20, 2003 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-12660261

RESUMEN

BACKGROUND: The aim of this study was to investigate the relationships between the serum levels of soluble leptin receptor (SLEPR), and total, free and bound leptin, and the change in the serum SLEPR level during an IVF cycle. METHODS: Serum concentrations of leptin and SLEPR were measured in 50 Japanese women of reproductive age, and 20 patients participating in an IVF programme. The total leptin was fractionated into free and bound portions by gel filtration chromatography. RESULTS: The SLEPR level was negatively correlated with the body mass index (BMI) (r = -0.548, P < 0.0001), total leptin (r = -0.433, P < 0.0001), the percentage of free leptin (r = -0.732, P < 0.0001) and the absolute free leptin concentration (r = -0.506, P < 0.0001). The SLEPR level was positively correlated with the percentage of bound leptin (r = 0.730, P < 0.0001), whereas there was little variation in the absolute bound leptin concentration, regardless of the BMI or SLEPR concentration. During the IVF cycle, total and free leptin elevated during maximal ovarian stimulation, whereas there was no significant difference in the SLEPR concentration. CONCLUSIONS: The results demonstrate a skillful mechanism where a change in the serum SLEPR level regulates, in part, the biological activity of leptin in the circulation.


Asunto(s)
Infertilidad Femenina/sangre , Infertilidad Femenina/terapia , Leptina/sangre , Inducción de la Ovulación , Receptores de Superficie Celular/sangre , Adulto , Índice de Masa Corporal , Estudios de Casos y Controles , Femenino , Fertilización In Vitro , Humanos , Infertilidad Femenina/patología , Persona de Mediana Edad , Concentración Osmolar , Receptores de Superficie Celular/química , Receptores de Leptina , Solubilidad
18.
Hum Immunol ; 63(11): 1033-8, 2002 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-12392856

RESUMEN

Although the exact etiology of endometriosis is unclear, several lines of evidence support roles for both cell-mediated and humoral immunity in its pathogenesis. To assess the association between HLA genotypes and endometriosis, we investigated the frequencies of HLA-A, -B, -C, and -DRB1 antigens or alleles in 123 Japanese patients with endometriosis and 165 healthy women as controls. Significant positive association with endometriosis was observed for HLA-B7 (OR = 2.7, 95% CI = 1.5-5.1, p(u) = 0.0022, p(c) = 0.0440) and for Cw*0702 (OR = 2.1, 95% CI = 1.2-3.3, p(u) = 0.0026, p(c) = 0.0398). An increased frequency of DRB1*0101 was observed in endometriosis patients compared with control subjects (OR = 2.3, 95% CI = 1.2-4.4, p(u) = 0.0143), but was not statistically significant after correction for multiple comparisons. Two-locus analysis indicated that the susceptibility to endometriosis was primarily associated with B7, and that the increased frequencies of Cw*0702 and DRB1*0101 in patients reflected the linkage disequilibrium between B7 and Cw*0702 and DRB1*0101. Most of the B7 antigens were encoded by the B*0702 allele, which was in complete linkage disequilibrium with A24, Cw*0702, and DRB1*0101. Therefore, our results indicated that the HLA-A24-B*0702-Cw*0702-DRB1*0101 haplotype was associated with endometriosis susceptibility. Our findings may provide an important clue to elucidating the pathogenesis of endometriosis.


Asunto(s)
Alelos , Endometriosis/inmunología , Genes MHC Clase II , Genes MHC Clase I , Predisposición Genética a la Enfermedad , Adulto , Endometriosis/genética , Femenino , Frecuencia de los Genes , Antígenos HLA-A/genética , Antígeno HLA-A24 , Antígeno HLA-B7/genética , Antígenos HLA-DR/genética , Cadenas HLA-DRB1 , Haplotipos , Humanos , Desequilibrio de Ligamiento , Persona de Mediana Edad
19.
Gan To Kagaku Ryoho ; 29(5): 717-22, 2002 May.
Artículo en Japonés | MEDLINE | ID: mdl-12040675

RESUMEN

The tolerability and feasibility of combination therapy with paclitaxel (TXL) and carboplatin (CBDCA) against small residual disease following first-line optimal debulking of stage I c-IV ovarian cancer were evaluated in a multicenter dose-finding study. Eligibility criteria included histologically diagnosed stage I c-IV epithelial ovarian cancer with a postoperative residual lesion < or = 10 mm in diameter, no prior chemotherapy, and written informed consent of the patient and his/her family members to the chemotherapy. Twenty-two patients were enrolled and 20 of them were eligible. The patients were to receive 5 courses of TXL (175 mg/m2) and CBDCA (AUC 5) every 3 weeks. Hematological toxicities occurred in the form of grade 3 leukopenia during 25.7% of all courses, grade 3 neutropenia during 32.0% of all courses, and grade 4 neutropenia during 56.0% of all courses. No courses were associated with grade 4 leukopenia. G-CSF support was needed during 48 of 109 courses (44%) and caused normalization of the leukocyte count from a nadir of 1,921 +/- 434/mm3 after a mean time of 6 +/- 3.1 days, compared with 6 +/- 3.6 days needed for recovery from a nadir of 2, 357 +/- 360/mm3 without G-CSF support. This indicates similarly rapid recovery from severe leukopenia with the use of G-CSF. All eligible patients completed at least 5 courses of the chemotherapy. Some courses were given at a reduced dose or delayed due to toxicity but these dosage modifications were thought to be acceptable for both TXL and CBDCA. Five courses of TXL combined with CBDCA were tolerated well in this patient population.


Asunto(s)
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Neoplasias Ováricas/tratamiento farmacológico , Adulto , Anciano , Carboplatino/administración & dosificación , Esquema de Medicación , Estudios de Factibilidad , Femenino , Factor Estimulante de Colonias de Granulocitos/administración & dosificación , Humanos , Persona de Mediana Edad , Estadificación de Neoplasias , Neoplasia Residual/tratamiento farmacológico , Neoplasias Ováricas/patología , Paclitaxel/administración & dosificación
20.
Hum Reprod ; 17(4): 897-902, 2002 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-11925378

RESUMEN

BACKGROUND: To investigate whether polymorphisms of CYP17 and CYP19 genes are associated with the risk of endometriosis, we analysed the frequency and distribution of a single nucleotide polymorphism at the 5' untranslated region of the CYP17 gene, and a tetranucleotide (TTTA) tandem repeat polymorphism and a 3 bp insertion (I)/deletion (D) polymorphism in intron 4 of the CYP19 gene. METHODS: We studied 140 patients with endometriosis, 67 with adenomyosis and/or leiomyomas and 177 healthy control women. RESULTS: The distribution of the genotypes of CYP17 and alleles of the TTTA repeat polymorphism of CYP19 were not significantly different between the groups. In contrast, an increased frequency of the D/D genotype was observed in the endometriosis group as compared with the control group (D/D genotype versus I/I plus I/D genotypes; corrected P = 0.024). This was more evident in the endometriosis subgroups with chocolate cysts (corrected P = 0.043) and at severe clinical stages (corrected P = 0.035). CONCLUSIONS: The results suggest that the 3 bp I/D polymorphism of the CYP19 gene may be weakly associated with the susceptibility of endometriosis in a Japanese population.


Asunto(s)
Aromatasa/genética , Pueblo Asiatico/genética , Endometriosis/genética , Predisposición Genética a la Enfermedad/genética , Polimorfismo Genético , Esteroide 17-alfa-Hidroxilasa/genética , Adulto , Alelos , Elementos Transponibles de ADN , Femenino , Eliminación de Gen , Frecuencia de los Genes , Genotipo , Humanos , Japón , Leiomiomatosis/genética , Persona de Mediana Edad , Valores de Referencia
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