Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 30
Filtrar
Más filtros

Base de datos
País/Región como asunto
Tipo del documento
Intervalo de año de publicación
1.
Mol Ecol Resour ; 17(5): 1037-1053, 2017 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-27863033

RESUMEN

We present a DNA barcoding study on the insect order Orthoptera that was generated in collaboration between four barcoding projects in three countries, viz. Barcoding Fauna Bavarica (Germany), German Barcode of Life, Austrian Barcode of Life and Swiss Barcode of Life. Our data set includes 748 COI sequences from 127 of the 162 taxa (78.4%) recorded in the three countries involved. Ninety-three of these 122 species (76.2%, including all Ensifera) can be reliably identified using DNA barcodes. The remaining 26 caeliferan species (families Acrididae and Tetrigidae) form ten clusters that share barcodes among up to five species, in three cases even across different genera, and in six cases even sharing individual barcodes. We discuss incomplete lineage sorting and hybridization as most likely causes of this phenomenon, as the species concerned are phylogenetically young and hybridization has been previously observed. We also highlight the problem of nuclear mitochondrial pseudogenes (numts), a known problem in the barcoding of orthopteran species, and the possibility of Wolbachia infections. Finally, we discuss the possible taxonomic implications of our barcoding results and point out future research directions.


Asunto(s)
Código de Barras del ADN Taxonómico , Ortópteros/clasificación , Ortópteros/genética , Animales , Austria , ADN Bacteriano/genética , Complejo IV de Transporte de Electrones/genética , Alemania , Cooperación Internacional , Suiza , Wolbachia/genética
2.
Genome ; 59(9): 661-70, 2016 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-27314158

RESUMEN

Biodiversity loss is mainly driven by human activity. While concern grows over the fate of hot spots of biodiversity, contemporary species losses still prevail in industrialized nations. Therefore, strategies were formulated to halt or reverse the loss, driven by evidence for its value for ecosystem services. Maintenance of the latter through conservation depends on correctly identified species. To this aim, the German Federal Ministry of Education and Research is funding the GBOL project, a consortium of natural history collections, botanic gardens, and universities working on a barcode reference database for the country's fauna and flora. Several noticeable findings could be useful for future campaigns: (i) validating taxon lists to serve as a taxonomic backbone is time-consuming, but without alternative; (ii) offering financial incentives to taxonomic experts, often citizen scientists, is indispensable; (iii) completion of the libraries for widespread species enables analyses of environmental samples, but the process may not hold pace with technological advancements; (iv) discoveries of new species are among the best stories for the media; (v) a commitment to common data standards and repositories is needed, as well as transboundary cooperation between nations; (vi) after validation, all data should be published online via the BOLD to make them searchable for external users and to allow cross-checking with data from other countries.


Asunto(s)
Biodiversidad , Código de Barras del ADN Taxonómico , Bases de Datos Genéticas , Animales , Países Desarrollados , Alemania , Adhesión a Directriz , Humanos , Cooperación Internacional , Bibliotecas , Reproducibilidad de los Resultados
4.
Faraday Discuss ; 189: 291-315, 2016 07 18.
Artículo en Inglés | MEDLINE | ID: mdl-27112235

RESUMEN

A detailed source apportionment of size-resolved aerosol particles in the area of Leipzig, Germany, was performed. Sampling took place at four sites (traffic, traffic/residential, urban background, regional background) in parallel during summer 2013 and the winters 2013/14/15. Twenty-one samples were taken per season with a 5-stage Berner impactor and analysed for particulate mass, inorganic ions, organic and elemental carbon, water-soluble organic carbon, trace metals, and a wide range of organic species. The compositional data were used to estimate source contributions to particulate matter (PM) in quasi-ultrafine (up to 140 nm), accumulation mode, and coarse size ranges using Positive Matrix Factorisation (PMF) receptor modelling. Traffic (exhaust and general traffic emissions), coal combustion, biomass combustion, photochemistry, general secondary formation, cooking, fungal spores, urban dust, fresh sea/road salt, and aged sea salt were all found to contribute to different extents to observed PM concentrations. PMF derived estimates agreed reasonably with estimates from established macrotracer approaches. Quasi-ultrafine PM originated mainly from traffic (20-50%) and photochemistry (30-50%) in summer, while it was dominated by solid fuel (mainly biomass) combustion in winter (50-70%). Tentatively identified cooking aerosol contributed up to 36% on average at the residential site. For accumulation mode particles, two secondary sources typically contributed 40-90% to particle mass. In winter, biomass and coal combustion contributions were up to ca. 25% and 45%, respectively. Main sources of coarse particles were diverse and included nearly all PMF-resolved ones depending on season and air mass origin. For PM10, traffic (typically 20-40% at kerbside sites), secondary formation (30-60%), biomass combustion (10-15% in winter), and coal combustion (30-40% in winter with eastern air mass inflow) were the main quantified sources. At the residential site, contributions from biomass combustion derived up to 60% from local emissions. Coal combustion as a significant source was only present during eastern air mass inflow and showed very similar concentrations at all sites, indicating the importance of trans-boundary air pollution transport in the study area. Overall, nearly half of the PM10 mass was attributed to urban sources by a simple subtractive approach with highest reduction potentials of up to 80% for local (urban) mitigation measures in ultrafine and coarse particles. Local increments of elemental carbon have decreased by about 50% as compared to the year 2000, corroborating results from a former study on the positive effects of a low emission zone, implemented in Leipzig in 2011.

5.
Bone Marrow Transplant ; 50(5): 679-84, 2015 May.
Artículo en Inglés | MEDLINE | ID: mdl-25642765

RESUMEN

Prognosis is poor for patients with biologically aggressive Non-Hodgkin lymphoma (NHL), refractory to chemotherapy or relapsed after autologous transplantation, especially when no disease control before allogeneic transplantation is achieved. In 16 patients (median age 53, median prior regimes 5) with relapsed or refractory non-remission NHL, we analysed retrospectively the efficacy of a sequential therapy comprising clofarabine re-induction followed by a reduced-intensity conditioning with fludarabine, CY and melphalan, and T-cell-replete HLA-haploidentical transplantation. High-dose CY was utilized post-transplantation. All patients engrafted. Early response (day +30) was achieved in 94%. Treatment-related grade III-IV toxicity occurred in 56%, most commonly transient elevation of transaminases (36%), while there was a low incidence of infections (19% CMV reactivation, 19% invasive fungal infection) and GVHD (GVHD: acute III-IV: 6%; mild chronic: 25%). One-year non-relapse mortality was 19%. After a median follow-up of 21 months, estimated 1- and 2-year PFS was 56 and 50%, respectively, with 11 patients (69%) still alive after 2 years. In summary, sequential therapy is feasible and effective and provides an acceptable toxicity profile in high-risk non-remission NHL. Presumably, cytotoxic reinduction with clofarabine provides enough remission time for the graft-versus lymphoma effect of HLA-haploidentical transplantation to kick in, even in lymphomas that are otherwise chemo-refractory.


Asunto(s)
Nucleótidos de Adenina/administración & dosificación , Antimetabolitos Antineoplásicos/administración & dosificación , Arabinonucleósidos/administración & dosificación , Antígenos HLA , Trasplante de Células Madre Hematopoyéticas , Linfoma no Hodgkin , Adulto , Anciano , Aloinjertos , Clofarabina , Supervivencia sin Enfermedad , Femenino , Humanos , Linfoma no Hodgkin/mortalidad , Linfoma no Hodgkin/terapia , Masculino , Persona de Mediana Edad , Recurrencia , Estudios Retrospectivos , Tasa de Supervivencia
6.
J Dent Res ; 94(2): 297-303, 2015 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-25421839

RESUMEN

The healing time of zirconia implants may be reduced by the use of bioactive glass coatings. Unfortunately, existing glasses are either bioactive like Bioglass 45S5 but thermally incompatible with the zirconia substrate, or they are thermally compatible but exhibit only a very low level of bioactivity. In this study, we hypothesized that a tailored substitution of alkaline earth metals and alkaline metals in 45S5 can lead to a glass composition that is both bioactive and thermally compatible with zirconia implants. A novel glass composition was analyzed using x-ray fluorescence spectroscopy, dilatometry, differential scanning calorimetry, and heating microscopy to investigate its chemical, physical, and thermal properties. Bioactivity was tested in vitro using simulated body fluid (SBF). Smooth and microstructured glass coatings were applied using a tailored spray technique with subsequent thermal treatment. Coating adhesion was tested on implants that were inserted in bovine ribs. The cytocompatibility of the coating was analyzed using L929 mouse fibroblasts. The coefficient of thermal expansion of the novel glass was shown to be slightly lower (11.58 · 10(-6) K(-1)) than that of the zirconia (11.67 · 10(-6) K(-1)). After storage in SBF, the glass showed reaction layers almost identical to the bioactive glass gold standard, 45S5. A process window between 800 °C and 910 °C was found to result in densely sintered and amorphous coatings. Microstructured glass coatings on zirconia implants survived a minimum insertion torque of 60 Ncm in the in vitro experiment on bovine ribs. Proliferation and cytotoxicity of the glass coatings was comparable with the controls. The novel glass composition showed a strong adhesion to the zirconia substrate and a significant bioactive behavior in the SBF in vitro experiments. Therefore, it holds great potential to significantly reduce the healing time of zirconia dental implants.


Asunto(s)
Cerámica/química , Materiales Biocompatibles Revestidos/química , Implantes Dentales , Materiales Dentales/química , Vidrio/química , Circonio/química , Animales , Líquidos Corporales/química , Rastreo Diferencial de Calorimetría , Bovinos , Línea Celular , Proliferación Celular/fisiología , Supervivencia Celular/fisiología , Cerámica/toxicidad , Materiales Biocompatibles Revestidos/toxicidad , Cristalización , Recubrimiento Dental Adhesivo , Fibroblastos/efectos de los fármacos , Ratones , Microscopía Confocal , Costillas/cirugía , Propiedades de Superficie , Temperatura , Termodinámica , Torque , Temperatura de Transición , Difracción de Rayos X
7.
Bone Marrow Transplant ; 49(7): 895-901, 2014 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-24820212

RESUMEN

Haploidentical haematopoietic SCT (HSCT) using T-cell-replete grafts and post-transplant high-dose CY has found increasing acceptance. Our purpose was to evaluate the feasibility and outcome of this strategy as second HSCT incorporating donor change for acute leukaemia relapse after a first allogeneic transplantation. The courses of 20 consecutive adults (median age 37 years, 12 male) with AML (n=14), ALL (n=5) and acute bi-phenotypic leukaemia (n=1) were analysed retrospectively. Conditioning consisted of fludarabine, CY and either melphalan or TBI or tresosulfan+/-etoposide. Engraftment was achieved in 17 (85%), and a second remission was induced in 15 patients (75%) on day +30. The rate of grade II-IV acute GvHD was 35%, while chronic GvHD occurred in five patients. Most commonly observed grade III-IV toxicities were mucositis (30%), hyperbilirubinemia (20%), elevation of transaminases (20%) and creatinine (20%), while invasive fungal infection affected 30%. One-year non-relapse mortality (NRM) was 36%. At a median follow-up of 17 months, estimated 1-year OS was 45%, and 1-year relapse-free survival was 33%. This strategy was feasible and allowed for successful engraftment with a moderate rate of toxicity. Early outcome and NRM are at least comparable with results after a second HSCT from HLA-matched donors without donor change at HSCT2.


Asunto(s)
Trasplante de Células Madre Hematopoyéticas/métodos , Leucemia/terapia , Acondicionamiento Pretrasplante/métodos , Enfermedad Aguda , Adulto , Femenino , Humanos , Masculino , Persona de Mediana Edad , Recurrencia , Donantes de Tejidos , Trasplante Homólogo , Adulto Joven
9.
Eat Weight Disord ; 15(1-2): e15-22, 2010.
Artículo en Inglés | MEDLINE | ID: mdl-20571316

RESUMEN

BACKGROUND: Disturbed interactions with one's body and with other persons are two major features in eating disorders. This study was designed to assess current and childhood characteristics of eating-disordered men. METHODS: The authors interviewed 32 men with eating disorders (anorexia nervosa: N=9, bulimia nervosa: N=15, eating disorders not otherwise specified: N=8) and 43 control participants with no such history similar in age and educational status. The Structured Clinical Interview for DSM-IV was used to assess Axis I disorders and a self-designed interview to assess actual social and sexual characteristics and childhood body-focused and social behaviors including sexual and physical abuse. RESULTS: The two groups differed significantly with regard to clinical, sexual and social features, with a three times higher rate of psychiatric disorders, fewer sexual and social relationships in the index group than in the controls. Eating-disordered men differed significantly from controls on most measures of body-focused and social behaviors, displaying higher rates of thumb sucking, nail biting, auto-aggressive behavior, and nudity as a familial taboo during childhood, as well as less parental bodily caressing than did controls. The index group reported significantly poorer relationships to their parents, fewer friends and persons of trust, and more often had adjustment problems at school than did their counterparts. CONCLUSIONS: Our data show that disturbed interactions with one's body and with other persons in eating-disordered men are associated with a body-denying and distant family climate and an auto-aggressive, anxious and inhibited social behavior during childhood.


Asunto(s)
Trastornos de Alimentación y de la Ingestión de Alimentos/diagnóstico , Trastornos de Alimentación y de la Ingestión de Alimentos/psicología , Hombres/psicología , Adulto , Adultos Sobrevivientes del Maltrato a los Niños/psicología , Distribución de Chi-Cuadrado , Humanos , Entrevistas como Asunto , Masculino , Selección de Paciente , Autoimagen , Conducta Social , Medio Social , Estadísticas no Paramétricas
10.
Internist (Berl) ; 50(7): 881-6, 2009 Jul.
Artículo en Alemán | MEDLINE | ID: mdl-19536514

RESUMEN

We discuss the case of a 32 year-old male with severe microcytic anemia (hemoglobin 2,9 g/dl) and megaloblastic changes in the bone marrow. The patient reported of substantial dietary weight loss. The family history was positive for beta-thalassemia. Previous blood work showed iron deficiency with mild anemia. Further work-up verified beta-thalassemia minor and revealed severely decreased vitamin B12 levels with positive anti intrinsic-factor antibodies, pathognomonic for autoimmune pernicious anemia. The paradoxon therefore dissolved as a pernicious anemia with megaloblastic changes with microcytic erythrocytes due to beta-thalassemia.


Asunto(s)
Anemia Perniciosa/diagnóstico , Anemia Perniciosa/etiología , Deficiencia de Vitamina B 12/diagnóstico , Deficiencia de Vitamina B 12/etiología , Talasemia beta/complicaciones , Talasemia beta/diagnóstico , Adulto , Diagnóstico Diferencial , Humanos , Masculino
11.
Psychother Psychosom ; 77(1): 57-60, 2008.
Artículo en Inglés | MEDLINE | ID: mdl-18087209

RESUMEN

BACKGROUND: Bulimia nervosa (BN) is often associated with depressive symptoms and treatment with antidepressants has shown positive effects. A shared deficient serotonergic transmission was postulated for both syndromes. The left dorsolateral prefrontal cortex was argued to regulate eating behaviour and to be dysfunctional in eating disorders. METHODS: Fourteen women meeting DSM-IV criteria for BN were included in a randomised placebo-controlled double-blind trial. In order to exclude patients highly responsive to placebo, all patients were first submitted to a one-week sham treatment. Randomisation was followed by 3 weeks of active treatment or sham stimulation. As the main outcome criterion we defined the change in binges and purges. Secondary outcome variables were the decrease of the Hamilton Depression Rating Scale (HDRS), the Beck Depression Inventory (BDI) and the Yale-Brown Obsessive Compulsive Scale (YBOCS) over time. RESULTS: The average number of binges per day declined significantly between baseline and the end of treatment in the two groups. There was no significant difference between sham and active stimulation in terms of purge behaviour, BDI, HDRS and YBOCS over time. CONCLUSION: These preliminary results indicate that repetitive transcranial magnetic stimulation (rTMS) in the treatment of BN does not exert additional benefit over placebo. A larger number of patients might clarify a further role of rTMS in the treatment of BN.


Asunto(s)
Bulimia Nerviosa/terapia , Estimulación Magnética Transcraneal , Adulto , Atención Ambulatoria , Bulimia Nerviosa/diagnóstico , Bulimia Nerviosa/fisiopatología , Bulimia Nerviosa/psicología , Trastorno Depresivo/diagnóstico , Trastorno Depresivo/fisiopatología , Trastorno Depresivo/psicología , Trastorno Depresivo/terapia , Dominancia Cerebral/fisiología , Método Doble Ciego , Femenino , Estudios de Seguimiento , Humanos , Inventario de Personalidad , Corteza Prefrontal/fisiopatología , Resultado del Tratamiento
12.
Acta Psychiatr Scand ; 113(4): 360-3; discussion 363-4, 2006 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-16638081

RESUMEN

OBJECTIVE: The case report suggests the indispensability of preoperative accurate psychiatric checkups especially in temporal resections. METHOD: A single case was reported. RESULTS: We report the case of a 20-year-old woman suffering for 12 years from primary generalized epilepsy, attributed to left-sided hippocampal sclerosis. Because seizures were resistant to drug therapy, she underwent amygdala-hippocampectomy at the age of 18. Furthermore, she had previously been victim of childhood sexual abuse. Two weeks after epilepsy surgery, she manifested symptoms of post-traumatic stress disorder (PTSD). CONCLUSION: There is evidence that the amygdala-hippocampal region is both functionally and morphologically involved in the aetiology of PTSD. The removal of this marked neuroanatomical region and the resulting disconnection and asymmetry between right and left amygdala-hippocampal region might be seen as an evidence for this region aetiologically being involved in the patient's PTSD symptoms.


Asunto(s)
Amígdala del Cerebelo/fisiopatología , Amígdala del Cerebelo/cirugía , Epilepsia/etiología , Epilepsia/fisiopatología , Epilepsia/cirugía , Hipocampo/fisiopatología , Hipocampo/cirugía , Procedimientos Neuroquirúrgicos/métodos , Complicaciones Posoperatorias , Trastornos por Estrés Postraumático/etiología , Trastornos por Estrés Postraumático/fisiopatología , Adulto , Niño , Abuso Sexual Infantil/psicología , Trastornos del Conocimiento/diagnóstico , Diagnóstico Diferencial , Femenino , Humanos , Incesto/psicología , Pruebas Neuropsicológicas , Cuidados Preoperatorios , Trastornos por Estrés Postraumático/terapia
13.
Eur Psychiatry ; 19(2): 118-9, 2004 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-15051113

RESUMEN

Research on repetitive transcranial magnetic stimulation (rTMS) indicates that the treatment of non-psychotic depression is comparable to electroconvulsive therapy (ECT) in terms of short-term outcome. We report on a woman who exerted a recurrent moderate major depressive episode, 6 months after discontinuation of maintenance ECT. She responded to acute rTMS treatment which was followed by the rTMS maintenance-protocol. Within 2 months of continuation rTMS she relapsed suffering from a severe non psychotic depressive episode and had to be switched to a successful ECT. In this patient rTMS had a good clinical impact as an acute treatment strategy, but failed to prevent relapse as the continuation ECT previously did in the same patient.


Asunto(s)
Trastorno Depresivo/terapia , Terapia por Estimulación Eléctrica , Terapia Electroconvulsiva/métodos , Campos Electromagnéticos , Trastorno Depresivo/psicología , Femenino , Humanos , Persona de Mediana Edad , Fitoterapia , Recurrencia , Factores de Tiempo , Insuficiencia del Tratamiento , Vitamina E/uso terapéutico
14.
J Neurol Neurosurg Psychiatry ; 75(2): 320-2, 2004 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-14742619

RESUMEN

Repetitive transcranial magnetic stimulation (rTMS) has been reported to demonstrate slight effects in the treatment of depression. Hence, a novel bilateral versus unilateral and sham stimulation design was applied to further assess rTMS' antidepressant effects. Forty one medication free patients with major depression, admitted to a psychiatric unit specialising in affective disorders, were consecutively randomised into 3 groups. Group A1 (n = 12) received unilateral active stimulation consisting of high frequency (hf) rTMS over the left dorsolateral prefrontal cortex (LDLPC) and subsequent sham low frequency (lf) rTMS over the right dorsolateral prefrontal cortex (RDLPC). Group A2 (n = 13) received simultaneous bilateral active stimulation consisting of hf-rTMS over the LDLPC and lf-rTMS over the RDLPC. Group C (n = 13) received bilateral sham stimulation. Stimulation was performed on 10 consecutive workdays. All patients received antidepressant medication on the first day of stimulation, which was continued during and after the stimulation period. As no significant difference in antidepressant outcome between group A1 and A2 was found, the two groups were pooled. The time course of the outcome variables Hamilton depression rating scale (HDRS(21)) and Beck depression inventory (days 0, 7, 14, 28) by repeated measures analysis of variance revealed no significant group differences (in terms of a group by time interaction), whereas there was a significant effect of time on all three outcome variables in all groups. The results suggest that rTMS as an "add on" strategy, applied in a unilateral and a bilateral stimulation paradigm, does not exert an additional antidepressant effect.


Asunto(s)
Trastorno Depresivo Mayor/terapia , Fenómenos Electromagnéticos/instrumentación , Método Doble Ciego , Diseño de Equipo , Femenino , Humanos , Masculino , Persona de Mediana Edad , Estudios Prospectivos , Cráneo , Insuficiencia del Tratamiento
15.
Psychol Med ; 33(7): 1319-23, 2003 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-14580085

RESUMEN

BACKGROUND: Family studies have suggested that eating disorders and mood disorders may coaggregate in families. To study further this question, data from a family interview study of probands with and without major depressive disorder was examined. METHOD: A bivariate proband predictive logistic regression model was applied to data from a family interview study, conducted in Innsbruck, Austria, of probands with (N = 64) and without (N = 58) major depressive disorder, together with 330 of their first-degree relatives. RESULTS: The estimated odds ratio (OR) for the familial aggregation of eating disorders (anorexia nervosa, bulimia nervosa and binge-eating disorder) was 7.0 (95 % CI 1.4, 28; P = 0.006); the OR for the familial aggregation of mood disorders (major depression and bipolar disorder) was 2.2 (0.92, 5.4; P = 0.076); and for the familial coaggregation of eating disorders with mood disorders the OR was 2.2 (1.1, 4.6; P = 0.035). CONCLUSIONS: The familial coaggregation of eating disorders with mood disorders was significant and of the same magnitude as the aggregation of mood disorders alone--suggesting that eating disorders and mood disorders have common familial causal factors.


Asunto(s)
Anorexia Nerviosa/genética , Trastorno Bipolar/genética , Bulimia/genética , Trastorno Depresivo Mayor/genética , Adulto , Anorexia Nerviosa/diagnóstico , Anorexia Nerviosa/epidemiología , Anorexia Nerviosa/psicología , Austria , Trastorno Bipolar/diagnóstico , Trastorno Bipolar/epidemiología , Trastorno Bipolar/psicología , Bulimia/diagnóstico , Bulimia/epidemiología , Bulimia/psicología , Causalidad , Comorbilidad , Trastorno Depresivo Mayor/diagnóstico , Trastorno Depresivo Mayor/epidemiología , Trastorno Depresivo Mayor/psicología , Femenino , Humanos , Entrevista Psicológica , Modelos Logísticos , Masculino , Persona de Mediana Edad , Oportunidad Relativa
17.
Acta Psychiatr Scand ; 106(2): 83-96, 2002 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-12121205

RESUMEN

OBJECTIVE: To review the available literature on depressive symptomatology in schizophrenia in order to establish a diagnostic algorithm of depressive syndromes in schizophrenia. METHOD: A literature search was performed using PubMed and Medline. Additional information was gained by cross-referencing from papers found in the database. Data from controlled studies as well as supplementary information from review articles and psychiatric manuals pertinent to the topic were used. Depressive symptoms were classified with respect to their temporal relationship to acute psychotic symptoms before the background of nosological entities as operationalized by Diagnostic Statistical Manual IV (DSM IV). RESULTS: Depression is a common and devastating comorbid syndrome in patients suffering from schizophrenic disorder. The paper summarizes the relevant diagnostic steps to guide the clinician towards therapeutic interventions, which differ depending on the nature of the depressive syndrome. CONCLUSION: Differentiating depressives states in schizophrenia has consequences in terms of choosing therapeutic strategies. An algorithm which leads the practitioner to a reliable diagnosis and in consequence to a valid therapy is presented.


Asunto(s)
Algoritmos , Depresión/diagnóstico , Depresión/epidemiología , Esquizofrenia/epidemiología , Antidepresivos/uso terapéutico , Depresión/tratamiento farmacológico , Diagnóstico Diferencial , Humanos , Índice de Severidad de la Enfermedad
18.
Horm Metab Res ; 34(1): 7-12, 2002 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-11832994

RESUMEN

Non-obese diabetic (NOD) mice spontaneously develop insulin dependent diabetes due to autoimmune destruction of beta-cells. The progression of insulitis can be accelerated and synchronized in the pancreas by a single injection of 250 mg/kg cyclophosphamide. In this study, we will report on three immune mediators that were not known to be expressed during insulitis until now. Early insulitis in ten-week-old female NOD mice was associated with strong expression of prostaglandin H synthase 2 in the pancreas and of arginase, an antagonist enzyme of the inducible NO synthase. After acceleration of insulitis progression by cyclophosphamide, expression of the two enzymes was downregulated within 24 h. There was strong concomitant upregulation of IL-15 gene expression that preceded lymphocyte invasion of islets and a rise of IFN-gamma mRNA levels by several days. The comparison of individual pancreata showed that the expression of IL-12 and IL-18 mRNA closely correlated with levels of IL-15 gene expression. We conclude that arginase and prostaglandin H synthase 2 expression is associated with peri-insulitis, while IL-15 is a candidate cytokine in driving destructive insulitis, as it elicits Th1-cytotoxic responses in lymphoid as well as in non-lymphoid immune cells and is unusually resistant to downregulation by antagonistic cytokines. This is the first report on arginase, prostaglandin H synthase 2 and IL-15 expression in pancreatic lesions of prediabetic NOD mice.


Asunto(s)
Arginasa/biosíntesis , Diabetes Mellitus Experimental/inmunología , Diabetes Mellitus Experimental/metabolismo , Interleucina-15/biosíntesis , Prostaglandina-Endoperóxido Sintasas/biosíntesis , Animales , Arginasa/genética , Diabetes Mellitus Experimental/genética , Femenino , Regulación de la Expresión Génica , Histocitoquímica , Interleucina-15/genética , Interleucinas/biosíntesis , Interleucinas/genética , Ratones , Ratones Endogámicos NOD , Páncreas/enzimología , Páncreas/inmunología , Prostaglandina-Endoperóxido Sintasas/genética , ARN Mensajero/biosíntesis , ARN Mensajero/genética , Reacción en Cadena de la Polimerasa de Transcriptasa Inversa , Estadísticas no Paramétricas , Regulación hacia Arriba
19.
Neurosci Lett ; 310(2-3): 105-8, 2001 Sep 14.
Artículo en Inglés | MEDLINE | ID: mdl-11585578

RESUMEN

Repetitive transcranial magnetic stimulation is a novel non-invasive method with antidepressant properties, where electromagnetic fields are applied via an electrode. The aim of the present study was to investigate in an in vitro model if magnetic stimulation may activate the transcription factor c-fos. Organotypic brain slices of the parietal cortex were cultured for 2 weeks and then treated with a magnetic stimulator. Immunohistochemistry was used to detect c-fos like immunoreactivity. We show that magnetic stimulation (1 Hz, 10 min, 75% machine output/magstim 200 rapid stimulator) transiently enhanced c-fos 3-6 h after stimulation. Co-localization experiments revealed that c-fos was expressed in neurons but not astroglia. The activation of c-fos by magnetic stimulation was inhibited by the sodium-channel blocker tetrodotoxin (TTX) (10 microM). It is concluded that magnetic stimulation induces neuronal c-fos via TTX-sensitive sodium channels in organotypic cortex slices.


Asunto(s)
Corteza Cerebral/metabolismo , Magnetismo , Neuronas/metabolismo , Proteínas Proto-Oncogénicas c-fos/metabolismo , Canales de Sodio/metabolismo , Animales , Corteza Cerebral/citología , Estimulación Eléctrica , Técnicas de Cultivo de Órganos , Ratas , Bloqueadores de los Canales de Sodio , Tetrodotoxina/farmacología
20.
Psychother Psychosom ; 70(1): 38-43, 2001.
Artículo en Inglés | MEDLINE | ID: mdl-11150937

RESUMEN

BACKGROUND: To compare male bodybuilders to men with eating disorders and control men regarding body image, psychopathology and sexual history. METHOD: We compared 28 male bodybuilders, 30 men with eating disorders (anorexia nervosa, bulimia or binge eating disorder defined by DSM-IV), and 30 controls, using a battery of questionnaires covering weight history, eating behavior, body image, lifetime history of psychiatric disorders, and sexuality. Eating-disordered and control men were recruited from a college student population and studied during the course of an earlier investigation. RESULTS: Bodybuilders exhibited a pattern of eating and exercising as obsessive as that of subjects with eating disorders, but with a 'reverse' focus of gaining muscle as opposed to losing fat. Bodybuilders displayed rates of psychiatric disorders intermediate between men with eating disorders and control men. In measures of body image, the bodybuilders closely resembled the men with eating disorders, but significantly differed from the control men, with the former two groups consistently displaying greater dissatisfaction than the latter. Sexual functioning did not distinguish the three groups except for the item 'lack of sexual desire' which was reported significantly more often by both bodybuilders and men with eating disorders. CONCLUSION: On measures of body image and eating behavior, bodybuilders share many features of individuals with eating disorders.


Asunto(s)
Imagen Corporal , Ejercicio Físico , Trastornos Mentales/psicología , Adulto , Trastornos de Ansiedad/psicología , Estudios de Casos y Controles , Conducta Alimentaria , Trastornos de Alimentación y de la Ingestión de Alimentos/psicología , Humanos , Masculino , Trastornos del Humor/psicología , Sexualidad , Trastornos Relacionados con Sustancias/psicología
SELECCIÓN DE REFERENCIAS
DETALLE DE LA BÚSQUEDA