Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 20
Filtrar
Más filtros












Base de datos
Intervalo de año de publicación
1.
Medicina (Kaunas) ; 59(7)2023 Jun 21.
Artículo en Inglés | MEDLINE | ID: mdl-37511995

RESUMEN

Ovarian cancer is a malignant disease that affects thousands of patients every year. Currently, we use surgical techniques for early-stage cancer and chemotherapy treatment combinations for advanced stage cancer. Several novel therapies are currently being investigated, with gene therapy and stem cell therapy being the corner stone of this investigation. We conducted a thorough search on PubMed and gathered up-to-date information regarding epithelial ovarian cancer therapies. We present, in the current review, all novel treatments that were investigated in this field over the past five years, with a particular focus on local treatment.


Asunto(s)
Antineoplásicos , Neoplasias Ováricas , Femenino , Humanos , Carcinoma Epitelial de Ovario/tratamiento farmacológico , Carcinoma Epitelial de Ovario/cirugía , Antineoplásicos/uso terapéutico , Neoplasias Ováricas/patología , Quimioterapia Adyuvante , Quimioterapia Combinada
2.
Horm Mol Biol Clin Investig ; 44(2): 215-217, 2023 Jun 01.
Artículo en Inglés | MEDLINE | ID: mdl-36593126

RESUMEN

OBJECTIVES: Isolated ovarian agenesis in the absence of Mullerian duct anomalies are rare events which are usually discovered after menarche and incidentally in the context of an intervention for other indications, such as laparoscopy or assisted reproduction techniques. CASE PRESENTATION: We hereby present a case of unilateral ovarian agenesis in the presence of the ipsilateral fallopian tube. CONCLUSIONS: Older studies had reported an incidence of true congenital unilateral ovarian agenesis to be 1 in 11,241 females Sivanesaratnam V. Unexplained unilateral absence of ovary and fallopian tube. Eur J Obstet Gynecol Reprod Biol 1986;22:103-5, but this is likely an understatement given the increase of relevant literature in recent years and the frequency of laparoscopy nowadays.


Asunto(s)
Laparoscopía , Ovario , Femenino , Humanos , Trompas Uterinas/anomalías
4.
Artículo en Inglés | MEDLINE | ID: mdl-35409906

RESUMEN

It is known that children are more sensitive to the effects of medical treatments and environment than adults. Today there is limited information regarding the differences in genotoxic effects in children. The micronucleus assay is a method that is used to monitor genotoxicity, and it was validated several years before. Today there is international interest for exfoliated buccal cells. Most of the micronuclei studies in children have been performed with the analyses of lymphocytes. However, there is vast interest in using exfoliated cells from the oral cavity. The reason is that other type of cells are acquired non-invasively, this is an important issue in paediatric cohorts. Unfortunately a limitation of measuring micronuclei frequency is that it has been observed to be low in newborns and on the other hand there are a large number of patients and cell sample counts. It has been observed that radiation exposure and environmental pollutants increase the micronuclei frequency in newborn and children. Regarding the medical treatments, there is little data and several studies are needed to optimise the doses. There is the need to observe if there is a relationship between micronuclei in lymphocytes and exfoliated cells and to identify the baseline of the micronuclei levels. Moreover, we evaluate the changes in response to the toxic agents. Prospective cohorts studies will clarify the predictive value of micronuclei for cancer and chronic diseases for both children and adults. Novel molecular technologies will assist in the elucidation of different biological pathways and molecular mechanisms connected with the micronulcei levels in newborn and children.


Asunto(s)
Micronúcleos con Defecto Cromosómico , Mucosa Bucal , Adulto , Núcleo Celular , Niño , Humanos , Recién Nacido , Micronúcleos con Defecto Cromosómico/inducido químicamente , Pruebas de Micronúcleos/métodos , Estudios Prospectivos
5.
Artículo en Inglés | MEDLINE | ID: mdl-35329255

RESUMEN

INTRODUCTION: Diagnosis of lung nodules is still under investigation. We use computed tomography scans and positron emission tomography in order to identify their origin. PATIENTS AND METHODS: In our retrospective study, we included 248 patients with a single lung nodule or multiple lung nodules of size ≥1 cm. We used a radial-endobronchial ultrasound and a C-Arm. We used a 1.1 mm cryoprobe versus a 22G needle vs. forceps/brush. We compared the sample size of each biopsy method with the number of cell-block slices. RESULTS: Central lesions indifferent to the method provided the same mean number of cell-block slices (0.04933-0.02410). Cryobiopsies provide less sample size for peripheral lesions due to the higher incidence of pneumothorax (0.04700-0.02296). CONCLUSION: The larger the lesion ≥2 cm, and central, more cell-blocks are produced indifferent to the biopsy method (0.13386-0.02939). The time of the procedure was observed to be less when the C-Arm was used as an additional navigation tool (0.14854-0.00089).


Asunto(s)
Broncoscopía , Neoplasias Pulmonares , Biopsia/efectos adversos , Broncoscopía/métodos , Endosonografía/métodos , Humanos , Pulmón/diagnóstico por imagen , Pulmón/patología , Neoplasias Pulmonares/diagnóstico por imagen , Neoplasias Pulmonares/patología , Estudios Retrospectivos
6.
J Cancer ; 13(4): 1307-1312, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-35281877

RESUMEN

Introduction: Endoscopic techniques have been upgraded in the recent 10 years. We can use the radial endobronchial ultrasound to reach distal nodules in the periphery of the lungs, but also we can use it in order to make biopsies in lesions without endobronchial findings. Patients and Methods: We included in our study 248 patients with pulmonary nodules up to 4 cm. We use a radial endobronchial system from FUJI, a PENTAX bronchoscope and a C-ARM. We recorded the cancer type, biopsy method, time of each procedure, cell blocks and slices from cell blocks. Results: Two thirds of patients belonged to males (61.7%), forceps was the main tissue extraction technique (118, 47.6%) and tumors sized 1 to 2 cm were the most encountered (96, 38.7%). Samples with tissue content were present in 175 patients (70.6%) and one cell block dominated in the samples (109, 43.9%). Less than 20 minutes were needed to complete the operative procedure for the half patients (127, 51.2%), the C-Arm implementation concerned 117 persons (47.2%) and the majority of tumors was located in the central area of the lungs (178, 71.8%). Less time was necessary for central lesions and larger biopsy samples were acquired without the extensive use of C-ARM. Conclusion: The larger the nodule ≥2cm and in periphery the less we use the C-ARM and the time of the procedure is between 20-40 minutes. Moreover; we have more tissue sample and cell block slices.

7.
Adv Med Sci ; 67(1): 114-122, 2022 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-35134600

RESUMEN

PURPOSE: We aim to present a comprehensive literature review which focuses on the preoperative imaging of perianal fistulas. MATERIAL/METHODS: Pelvic magnetic resonance imaging (MRI) and endoanal ultrasound (EAUS) are the two first-line imaging modalities for the preoperative evaluation of patients with perianal fistulas. We conducted a search in PubMed, Scopus and Google Scholar concerning articles comparing pelvic MRI with EAUS, which were published from 1994 until 2019. RESULTS: In most articles, pelvic MRI is superior to EAUS for the evaluation of perianal fistulas (especially for supralevator and extrasphincteric ones). Preoperative pelvic MRI is associated with statistically significant better results and prognosis after surgical treatment of the disease. Preoperative EAUS poses high sensitivity and specificity in identifying intersphincteric and transsphincteric perianal fistulas, as well as the internal opening of a fistula-in-ano. There is only one meta-analysis which compares the diagnostic accuracy of the two mentioned imaging modalities in preoperative fistula detection. Sensitivity of both - pelvic MRI and EAUS, is acceptably high (0.87). Specificity of pelvic MRI is 0.69 in comparison to EAUS (0.43), but both values are considered low. CONCLUSIONS: Future well-designed prospective studies are needed to investigate the diagnostic accuracy of pelvic MRI and EAUS in the preoperative assessment of patients with perianal fistulas. Moreover, the combination of pelvic MRI and EAUS should also be studied, since several published articles suggest that it could lead to improved diagnostic accuracy. A novel treatment algorithm for perianal fistulas could arise from this study.


Asunto(s)
Endosonografía , Fístula Rectal , Endosonografía/métodos , Humanos , Imagenología Tridimensional , Imagen por Resonancia Magnética , Fístula Rectal/diagnóstico por imagen , Fístula Rectal/cirugía , Ultrasonografía
8.
Respir Med Case Rep ; 36: 101571, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-35036303

RESUMEN

AIM: We aimed to observe the clinical practicing value of radial endobronchial ultrasonography evaluating airway wall thickness before and after bronchial thermoplasty. METHODS: We selected two patients who received bronchial thermoplasty in our hospital. We measured the thickness of each segmental airway wall of each patient by radial endobronchial ultrasonography, and observed the difference before and after the therapy. All the treatments and measurement were performed by a designated bronchoscopist and the locations and depths of the ultrasound probe were relatively fixed, to reduce the operational error. RESULTS: In both two patients, the mean thicknesses of all segmental airway walls was 4.9 ± 0.7 mm before the first session of BT; the mean thickness was 4.13 ± 0.92 mm before the second session; the mean thickness was 2.69 ± 0.68 mm before the third session; the mean thickness was 2.7 ± 0.5 mm in the follow-up measurement at six months after the BT treatment; all thicknesses of airway wall were significantly reduced comparing with those before treatment; all the thicknesses of the airway walls were stable without any tendency of thickening after six months. Although the airways in the right middle lobe of both two patients were not received BT, their thicknesses were also decreased comparing with those before the treatment; both upper lobes bronchus of both two patients were not activated in the first and second sessions, but their thicknesses were also decreased at the third measurement. CONCLUSION: Radial endobronchial ultrasonography is a simple and practical method to measure the thickness of patient's airway wall. Bronchial thermoplasty can effectively reduce the thickness of airway wall. It can reduce airway smooth muscle by direct activation and other possible more complicated mechanism, which need further research.

9.
Front Biosci (Landmark Ed) ; 27(1): 36, 2022 01 19.
Artículo en Inglés | MEDLINE | ID: mdl-35090341

RESUMEN

INTRODUCTION: Local treatment of the airways and lung parenchyma has been used in clinical practice for several years for a variety of diseases. METHODS: A variety of endoscopic tools for local treatment exist, especially for treating malignancies. Using these endoscopic tools, one can administer drugs specifically designed for the airways. DISCUSSION: This article presents all locally administered treatment options and provides useful insights for future local endoscopically applied treatments.


Asunto(s)
Stents Liberadores de Fármacos , Everolimus , Sirolimus , Resultado del Tratamiento
10.
Respir Med Case Rep ; 34: 101540, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-34765435

RESUMEN

Bronchogenic cysts are rare congenital anomalies that they are usually diagnosed prenatally during the routine second trimester scan. We present such a rare case of bronchogenic cyst in a fetus. Our initial scan demonstrated a big cystic mass, which enlarged progressively causing shifting of the mediastinum and compression of the fetal heart. Consequent hydrops fetalis was treated with thoracoamniotic shunt and the pregnancy continued with no further complications. Pontnatal period, surgery and long term follow-up was uneventful.

11.
Medicina (Kaunas) ; 57(10)2021 Sep 30.
Artículo en Inglés | MEDLINE | ID: mdl-34684078

RESUMEN

The objective of this review is to describe the effectiveness of laparoscopy in the diagnosis and treatment of pelvic congestion syndrome (PCS). PCS is a cause of chronic pelvic pain (CPP) and is associated with dysfunction of the pelvic venous system. PCS is more common in women of reproductive age, and hormonal changes are associated with its development along with other reasons (e.g., working and living habits). There is an urgent need to establish an effective algorithm for the diagnosis and treatment of CPP, which could have a dramatic effect in patients' everyday life. This algorithm should be able to overcome known issues that lead to the underdiagnosis of PCS, such as the overlap of its symptoms with other diseases. Here, we present our findings from literature articles about the methods used in practice today for the diagnosis of this syndrome. We also compare the methods to propose the most promising technique for providing a diagnosis with high accuracy. In our understanding, laparoscopy is superior when compared to other methods. It can provide a diagnosis of PCS while excluding or identifying other comorbidities and can also lead toward the next steps for the treatment of PCS.


Asunto(s)
Dolor Crónico , Laparoscopía , Várices , Femenino , Humanos , Dolor Pélvico/etiología , Pelvis , Várices/diagnóstico , Várices/cirugía
12.
Rom J Morphol Embryol ; 60(4): 1361-1364, 2019.
Artículo en Inglés | MEDLINE | ID: mdl-32239118

RESUMEN

The left umbilical vein is lodged on the fissure of the round ligament of the liver, from umbilicus to portal vein, just on the inferior margin of the falciform ligament. We report an anomalous course of the umbilical vein in a 39-week-old deceased male fetus, also exhibiting fetal thrombotic vasculopathy (FTV). In the present case, the umbilical vein entered the liver through a tunnel on its anterior part of the diaphragmatic surface, close to the lower free edge of the liver and next to the falciform ligament. The entrance of the tunnel was covered by Glisson's capsule. The round ligament's fissure was absent. The quadrate lobe was not well demarcated and the visceral surface of the liver had an abnormal appearance. The coexistence of FTV was confirmed histologically. The possibility of a tunnel present for the umbilical vein, instead of a fissure, is of great significance for surgical approaches or for radiological evaluations, even though it is not likely to cause intrauterine fetal death. However, the anomalous course of umbilical vein might be a predisposing factor for FTV, which often leads to intrauterine fetal death.


Asunto(s)
Feto/irrigación sanguínea , Hígado/irrigación sanguínea , Trombosis/patología , Venas Umbilicales/anomalías , Feto/patología , Humanos , Hígado/patología , Masculino , Venas Umbilicales/patología
13.
J Clin Ultrasound ; 39(4): 221-4, 2011 May.
Artículo en Inglés | MEDLINE | ID: mdl-21480288

RESUMEN

Ectopic kidney is a rare congenital malformation, caused by renal malpositioning during embryogenesis. We report a rare case of ectopic kidney located in the left hemithorax of a male fetus. The unique features in this case were early sonographic prenatal diagnosis of thoracic kidney at 22 weeks' gestation, which was confirmed by fetal MRI, and delayed sonographic manifestation of the associated congenital diaphragmatic hernia at 27 weeks.


Asunto(s)
Coristoma/diagnóstico por imagen , Hernia Diafragmática/diagnóstico por imagen , Hernias Diafragmáticas Congénitas , Riñón , Enfermedades Torácicas/diagnóstico por imagen , Ultrasonografía Prenatal/métodos , Adulto , Coristoma/cirugía , Femenino , Hernia Diafragmática/cirugía , Humanos , Recién Nacido , Imagen por Resonancia Magnética , Masculino , Embarazo , Resultado del Embarazo , Segundo Trimestre del Embarazo , Enfermedades Torácicas/cirugía
14.
J Clin Ultrasound ; 38(7): 386-8, 2010 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-20607848

RESUMEN

Ectopia cordis and mosaic trisomy 16 are two rare fetal anomalies, which have not been reported in association. We report a case of an isolated ectopia cordis at 11(+3) weeks. Subsequent embryological examination confirmed thoracic ectopia cordis with normal heart structure and array comparative genomic hybridization of fetal tissue detected trisomy 16 mosaicism.


Asunto(s)
Ectopía Cordis/diagnóstico por imagen , Ultrasonografía Prenatal/métodos , Aborto Eugénico , Adulto , Cromosomas Humanos Par 16/genética , Ectopía Cordis/genética , Femenino , Humanos , Mosaicismo , Embarazo , Trisomía/diagnóstico , Trisomía/genética , Adulto Joven
15.
Cardiol J ; 17(1): 65-72, 2010.
Artículo en Inglés | MEDLINE | ID: mdl-20104459

RESUMEN

BACKGROUND: Purpose of this study was to examine pupil size changes and mobility in normal subjects and in heart failure (HF) patients. METHODS: Sixteen stable patients with New York Heart Association (NYHA) class II or III heart failure and sixteen control subjects were studied. Pupillary reaction to light was recorded and nine parameters from this data were measured, reported and then compared in both groups of subjects. RESULTS: Patients with HF had abnormal pupillary function compared with normal subjects. Pupillary light reflex variables differed significantly between two groups (p < 0.05) except baseline radius (R1), minimum radius (R2) and time for maximum constriction (T3). A significant decrease in maximum constriction velocity (VCmax; p < 0.001) and maximum constriction acceleration (ACmax; p < 0.001) was observed in HF subjects. Furthermore, significantly higher values in percentage recovery-redilatation (%R; p < 0.001), percentage R2/R1 (%R2/R1; p < 0.05), latency (T1; p < 0.05) and time for maximum velocity (T2; p < 0.05) were found in the same group. CONCLUSIONS: Of the parameters studied, R1 and %R are governed mainly by the action of the sympathetic nervous system, through norepinephrine. The rest are governed mainly by parasympathetic nervous system, through acetylcholine. The results of our study demonstrate generalized adrenergic activation and parasympathetic withdrawal, which are present in HF.


Asunto(s)
Sistema Nervioso Autónomo/fisiopatología , Insuficiencia Cardíaca/fisiopatología , Reflejo Pupilar , Anciano , Humanos , Rayos Infrarrojos , Persona de Mediana Edad , Norepinefrina/sangre , Sistema Nervioso Parasimpático/fisiopatología , Sistema Nervioso Simpático/fisiopatología , Factores de Tiempo
16.
Pathol Res Pract ; 205(11): 765-73, 2009.
Artículo en Inglés | MEDLINE | ID: mdl-19616898

RESUMEN

In the present study, we carried out a comparative immunohistochemical analysis of aurora-A and aurora-B expression in 40 patients with primary glioblastomas, and attempted to identify any associations with Ki-67 index and the patients' clinical features. The impact of various treatment modalities and proliferative activity on patient outcome was also assessed. Immunohistochemistry was carried out using formalin-fixed and paraffin-embedded tissue sections. Aurora-A expression was higher in tumors with high Ki-67 expression (p=0.01) and was positively, though marginally, related to aurora-B expression (p=0.085). Aurora-B expression was not linked to Ki-67 expression (p=0.182). Lower aurora-A immunohistochemical expression, chemotherapy administration, and tumor localization in one lobe of the brain implied a greater probability of patient survival in univariate analysis (p=0.044, p=0.008, p=0.041, respectively). Ki-67 and aurora-B immunoreactivities were not associated with patient survival (p=0.918 and p=0.539, respectively). To our knowledge, for the first time, the association between aurora-A and aurora-B expression, the correlation of aurora-A with Ki-67 index, and the prognostic impact of aurora-A expression were assessed in glioblastomas. Although we addressed a prognostic connotation of aurora-A, we presume that aurora-A and aurora-B play a complicated role within glioblastomas. Further examinations of larger series are required, so that definite conclusions can be drawn.


Asunto(s)
Neoplasias Encefálicas/metabolismo , Proliferación Celular , Corteza Cerebral/metabolismo , Glioblastoma/metabolismo , Proteínas Serina-Treonina Quinasas/metabolismo , Adulto , Anciano , Anciano de 80 o más Años , Análisis de Varianza , Neoplasias Encefálicas/mortalidad , Neoplasias Encefálicas/terapia , Terapia Combinada , Femenino , Glioblastoma/mortalidad , Glioblastoma/terapia , Humanos , Inmunohistoquímica , Estimación de Kaplan-Meier , Antígeno Ki-67/metabolismo , Masculino , Persona de Mediana Edad , Estadísticas no Paramétricas , Resultado del Tratamiento
17.
Cardiol J ; 16(2): 172-4, 2009.
Artículo en Inglés | MEDLINE | ID: mdl-19387967

RESUMEN

We report one case of cardiac arrest related to ciprofloxacin administration. One female patient (aged 70 years old) developed a marked QTc prolongation (QTc = 0.62 s) within 24 hours of ciprofloxacin administration, with documented torsades de pointes and recurrent syncope that required defibrillation. The patient was under amiodarone and sotalol therapy for atrial fibrillation, with no obvious QT prolongation prior to ciprofloxacin therapy. QT prolongation and subsequent torsades de pointes appeared only after initiation of ciprofloxacin and normalized after drug discontinuation. Even though ciprofloxacin is thought to be safer than other agents in its class, it may cause QT prolongation and torsades de pointes, particularly in high risk patients with predisposing factors. Prolongation of the QT interval related to the effect of fluoroquinolones on rapid potassium channels (IKr) may result on potentially serious proarrhythmic effect, leading to torsades de pointes.


Asunto(s)
Antiarrítmicos/uso terapéutico , Antiinfecciosos/efectos adversos , Fibrilación Atrial/tratamiento farmacológico , Ciprofloxacina/efectos adversos , Síndrome de QT Prolongado/inducido químicamente , Anciano , Amiodarona/uso terapéutico , Cardioversión Eléctrica , Electrocardiografía , Femenino , Paro Cardíaco/inducido químicamente , Humanos , Síndrome de QT Prolongado/diagnóstico , Síndrome de QT Prolongado/terapia , Sotalol/uso terapéutico , Síncope/inducido químicamente , Torsades de Pointes/inducido químicamente , Resultado del Tratamiento
18.
Diagn Pathol ; 4: 7, 2009 Feb 17.
Artículo en Inglés | MEDLINE | ID: mdl-19222834

RESUMEN

BACKGROUND: Clear cell renal cell carcinomas (ccRCCs) constitute the most common renal carcinomas, characterized by a relatively aggressive clinical course. Thus, scientific research is targeting towards the identification of immunohistochemical and molecular markers that could be useful regarding diagnosis, appropriate therapy and prediction of prognosis. In the present study we assessed and correlated the expression of caspase-8, phosphorylated p38 mitogen-activated protein kinase (p-p38) and bcl-2 protein with histopathological features and clinical outcome of 27 patients with ccRCCs. METHOD: Immunohistochemistry in formalin-fixed and paraffin-embedded tissue sections was performed. The associations among various features were assessed utilizing statistical analysis. RESULTS: We found that increased expression of cytoplasmic caspase-8 and bcl-2 protein was strongly associated with low Fuhrman's grade of carcinomas (p = 0.019 and p = 0.041, respectively). On the other hand, increased p-p38 expression was significantly related to high Fuhrman's grade (p = 0.006). Moreover, high bcl-2 expression was correlated with low pathological stage of ccRCCs (p = 0.026). Increased expression of cytoplasmic caspase-8 as well as low-grade tumors (grade 1 and 2) implied a greater probability of patients' survival, in univariate statistical analysis (p = 0.037 and p = 0.019, respectively). Neither p-p38 nor bcl-2 expression was significantly linked to patients' survival. There were not emerged statistically significant associations among caspase-8, p-p38 kinase and bcl-2 protein. CONCLUSION: For the first time the prognostic impact of caspase-8 and p-p38 was studied in a series of ccRCCs, using immunohistochemistry in formalin-fixed and paraffin-embedded tissue sections. The suggestive relationship of caspase-8 with patients' clinical outcome, as well as the role of p-p38 within different grade categories, mandates further studies in larger cohorts of RCCs.

19.
Neuro Endocrinol Lett ; 29(6): 999-1006, 2008 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-19112389

RESUMEN

OBJECTIVES: This study is an attempt to determine, the in vivo action of leptin on this hypophysiotropic hypothalamic area, by evaluating the concentrations of luteinizing hormone (LH) and follicular stimulating hormone (FSH) in the serum. METHODS: The experiments were done by stereotaxic injection of recombinant rat leptin (rrleptin) into the third cerebral ventricle (V3) of adult female Wistar rats. Subjects were divided into five groups. Group A included normal intact animals. In Group B, the rats were stereotaxically administered with rrleptin in the V3. The rats, in Groups C, D and E, were subjected to electrolytic lesion of the arcuate nucleus (ARC), of the ventromedial nucleus (VMH) and of both of these hypothalamic nuclei, respectively. Immediately after the electric lesion, they were intracranially injected with rrleptin. Blood samplings for serum LH and FSH levels estimation were performed three times: 1) just before any stereotaxic procedure, 2) six hours, and 3) twenty-four hours after leptin administration. RESULTS: The results showed that serum LH levels increased dramatically in group B, six hours after leptin administration. The LH levels in Groups C, D and E presented the same pattern with a lower peak. The FSH levels were doubled six hours after leptin administration in all groups without any exception. Both LH and FSH serum levels reverted to the initial basic levels after 24 hours. DISCUSSION: The significant conclusion derived from this study is that ARC and VMH, which are responsible for controlling the tonic secretion of gonadotropins, respond in a different way for the FSH and LH secretion. This also suggests that some other mechanism(s) or factor(s) may additionally participate in the control of the tonic component of FSH secretion.


Asunto(s)
Núcleo Arqueado del Hipotálamo/metabolismo , Hormona Folículo Estimulante/sangre , Leptina/fisiología , Hormona Luteinizante/sangre , Núcleo Hipotalámico Ventromedial/metabolismo , Análisis de Varianza , Animales , Núcleo Arqueado del Hipotálamo/efectos de los fármacos , Femenino , Hormona Folículo Estimulante/metabolismo , Inyecciones Intraventriculares , Leptina/administración & dosificación , Hormona Luteinizante/metabolismo , Ratas , Ratas Wistar , Estadísticas no Paramétricas , Tercer Ventrículo , Núcleo Hipotalámico Ventromedial/efectos de los fármacos
20.
Cases J ; 1(1): 175, 2008 Sep 23.
Artículo en Inglés | MEDLINE | ID: mdl-18811959

RESUMEN

PURPOSE: We present the unusual occurrence of two distinct neoplasms in a 42-year-old woman with an operated pituitary adenoma 18 years ago. METHODS: Clinical history, magnetic resonance imaging studies and histopathological findings were utilized for our diagnostic considerations. RESULTS: Concomitant presence of a cerebellar medulloblastoma secondary disseminated within the spinal canal and a pituitary macroadenoma, was identified. CONCLUSION: To the best of our knowledge, this is the first reported case in which these two neoplasms are simultaneously occurred in the same individual. A short review of the literature is performed.

SELECCIÓN DE REFERENCIAS
DETALLE DE LA BÚSQUEDA
...