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1.
Psychol Med ; : 1-12, 2024 Apr 12.
Artículo en Inglés | MEDLINE | ID: mdl-38606582

RESUMEN

BACKGROUNDS: Many autistic people in mental health are suicidal. This study evaluated the effectiveness of dialectical behavior therapy (DBT) v. treatment as usual (TAU) in reducing suicidal ideation and suicide attempts. METHODS: At six Dutch mental health centers, 123 outpatients (18-65 years) with DSM-5 diagnosed autism spectrum disorder (ASD) and suicidal behavior were randomly assigned to the DBT intervention group (n = 63) or TAU control group (n = 60). Assessments were conducted at baseline, post-treatment at 6 months and 12-month follow-up. The primary outcomes were severity of suicidal ideation and frequency of suicide attempts. The severity of depression and social anxiety were secondary outcomes. RESULTS: At end-of-treatment, DBT significantly reduced both suicidal ideation (z = -2.24; p = 0.025; b = -4.41; s.e. = 197.0) and suicide attempts (z = -3.15; p = 0.002; IRR = 0.046; s.e. = 0.045) compared to TAU, but lost statistical significance at the 12-month follow-up. Depression severity significantly decreased with DBT (z = -1.99; p = 0.046: b = -2.74; s.e. = 1.37) remaining so at 12 months (z = -2.46; p = 0.014; b = -3.37; s.e. = 1.37). No effects were observed on social anxiety. Severe adverse events included two suicides in the TAU condition. CONCLUSIONS: DBT is an acceptable, safe, and short-term effective intervention to reduce suicidal ideation and suicide attempts in autistic adults with suicidal behavior.

2.
Top Companion Anim Med ; 60: 100863, 2024 Mar 19.
Artículo en Inglés | MEDLINE | ID: mdl-38513795

RESUMEN

OBJECTIVE: To describe an unusual case of spontaneous hemothorax resulting from thymic involution in a dog with suspected acquired bleeding dyscrasia associated with steroid-responsive meningitis-arteritis (SRMA). CASE DESCRIPTION: A 6-month-old spayed female Golden Retriever was referred due to the sudden onset of lethargy, fever (pyrexia), loss of appetite (anorexia), and moderate neck pain. These symptoms emerged six days after an ovariohysterectomy performed by the primary veterinarian. Upon admission, the patient exhibited pale mucous membranes, tachycardia (180 bpm), bilateral muffled heart sounds and tachypnea. Abdominal and thoracic point-of-care ultrasound (POCUS) were performed and revealed bilateral pleural effusion. Due to the patient's unstable condition, emergent thoracocentesis and transfusion of packed red blood cells was required. The initial work-up performed included a complete blood cell count (CBC), biochemistry profile, venous blood gas and coagulation panel (PT, APTT, fibrinogen). Pleural effusion analysis was compatible with hemothorax. Bloodwork was unremarkable including the initial coagulation panel. Further coagulation test was performed including buccal mucosal bleeding time, viscoelastic-based clot detection tests (TEG) and Von Willebrand factor antigen measurement. TEG revealed marked hyperfibrinolysis. Angiostrongylus vasorum and 4DX snap test were performed and yielded a negative result. Thoracic CT scan revealed the presence of a soft tissue-attenuating mass in the ventral mediastinum, thymic involution, and enlargement of the sternal and mediastinal lymph nodes. Therapy with tranexamic acid and corticosteroids at anti-inflammatory doses was initiated. Marked clinical improvement was observed within 24 hours, and after three days of hospitalization the patient was discharged. One month later, the dog was referred again for acute pyrexia, hyporexia, and neck pain which progressed to non-ambulatory tetraparesis. Neurological examination was compatible with C6-T2 lesion. MRI and cerebrospinal fluid analysis were performed and revealed a final diagnosis of steroid-responsive meningitis-arteritis (SRMA) with associated intramedullary hemorrhage. Corticosteroids were started again, and the patient showed a dramatic improvement over the next 24 hours. Three weeks after the diagnosis, the dog returned to a clinically normal state. The treatment was gradually tapered over the following months, guided by regular neurological and clinical examinations and CRP measurements, without any relapses. NEW OR UNIQUE INFORMATION: To the best of the author's knowledge, this is the first documented case of a dog experiencing spontaneous hemothorax as a result of thymic hemorrhage/involution which, in the absence of other identifiable diseases, was attributed to a hyperfibrinolytic state induced by a severe inflammatory disease such as SRMA.

5.
ESMO Open ; 7(6): 100611, 2022 12.
Artículo en Inglés | MEDLINE | ID: mdl-36463731

RESUMEN

BACKGROUND: In ∼3%-5% of patients with metastatic disease, tumor origin remains unknown despite modern imaging techniques and extensive pathology work-up. With long diagnostic delays and limited and ineffective therapy options, the clinical outcome of patients with cancer of unknown primary (CUP) remains poor. Large-scale genome sequencing studies have revealed that tumor types can be predicted based on distinct patterns of somatic variants and other genomic characteristics. Moreover, actionable genomic events are present in almost half of CUP patients. This study investigated the clinical value of whole genome sequencing (WGS) in terms of primary tumor identification and detection of actionable events, in the routine diagnostic work-up of CUP patients. PATIENTS AND METHODS: A WGS-based tumor type 'cancer of unknown primary prediction algorithm' (CUPPA) was developed based on previously described principles and validated on a large pan-cancer WGS database of metastatic cancer patients (>4000 samples) and 254 independent patients, respectively. We assessed the clinical value of this prediction algorithm as part of routine WGS-based diagnostic work-up for 72 CUP patients. RESULTS: CUPPA correctly predicted the primary tumor type in 78% of samples in the independent validation cohort (194/254 patients). High-confidence predictions (>95% precision) were obtained for 162/254 patients (64%). When integrated in the diagnostic work-up of CUP patients, CUPPA could identify a primary tumor type for 49/72 patients (68%). Most common diagnoses included non-small-cell lung (n = 7), gastroesophageal (n = 4), pancreatic (n = 4), and colorectal cancer (n = 3). Actionable events with matched therapy options in clinical trials were identified in 47% of patients. CONCLUSIONS: Genome-based tumor type prediction can predict cancer diagnoses with high accuracy when integrated in the routine diagnostic work-up of patients with metastatic cancer. With identification of the primary tumor type in the majority of patients and detection of actionable events, WGS is a valuable diagnostic tool for patients with CUP.


Asunto(s)
Carcinoma de Pulmón de Células no Pequeñas , Neoplasias Pulmonares , Neoplasias Primarias Desconocidas , Humanos , Neoplasias Primarias Desconocidas/diagnóstico , Neoplasias Primarias Desconocidas/genética , Neoplasias Primarias Desconocidas/tratamiento farmacológico , Genómica , Secuenciación Completa del Genoma
6.
Brain Lang ; 235: 105197, 2022 12.
Artículo en Inglés | MEDLINE | ID: mdl-36343507

RESUMEN

We utilized the N400 effect to investigate the influence of speech register on predictive language processing. Participants listened to long stretches (4 - 15 min) of naturalistic speech from different registers (dialogues, news broadcasts, and read-aloud books), totalling approximately 50,000 words, while the EEG signal was recorded. We estimated the surprisal of words in the speech materials with the aid of a statistical language model in such a manner that it reflected different predictive processing strategies; generic, register-specific, or recency-based. The N400 amplitude was best predicted with register-specific word surprisal, indicating that the statistics of the wider context (i.e., register) influences predictive language processing. Furthermore, adaptation to speech register cannot merely be explained by recency effects; instead, listeners adapt their word anticipations to the presented speech register.


Asunto(s)
Percepción del Habla , Habla , Humanos , Masculino , Femenino , Electroencefalografía , Potenciales Evocados , Motivación
8.
Neuropathol Appl Neurobiol ; 47(2): 328-345, 2021 02.
Artículo en Inglés | MEDLINE | ID: mdl-32949047

RESUMEN

AIM: Granulovacuolar degeneration (GVD) in Alzheimer's disease (AD) involves the necrosome, which is a protein complex consisting of phosphorylated receptor-interacting protein kinase 1 (pRIPK1), pRIPK3 and phosphorylated mixed lineage kinase domain-like protein (pMLKL). Necrosome-positive GVD was associated with neuron loss in AD. GVD was recently linked to the C9ORF72 mutation in amyotrophic lateral sclerosis (ALS) and frontotemporal lobar degeneration with transactive response DNA-binding protein (TDP-43) pathology (FTLD-TDP). Therefore, we investigated whether GVD in cases of the ALS-FTLD-TDP spectrum (ALS/FTLD) shows a similar involvement of the necrosome as in AD, and whether it correlates with diagnosis, presence of protein aggregates and cell death in ALS/FTLD. METHODS: We analysed the presence and distribution of the necrosome in post-mortem brain and spinal cord of ALS and FTLD-TDP patients (n = 30) with and without the C9ORF72 mutation, and controls (n = 22). We investigated the association of the necrosome with diagnosis, the presence of pathological protein aggregates and neuronal loss. RESULTS: Necrosome-positive GVD was primarily observed in hippocampal regions of ALS/FTLD cases and was associated with hippocampal TDP-43 inclusions as the main predictor of the pMLKL-GVD stage, as well as with the Braak stage of neurofibrillary tangle pathology. The central cortex and spinal cord, showing motor neuron loss in ALS, were devoid of any accumulation of pRIPK1, pRIPK3 or pMLKL. CONCLUSIONS: Our findings suggest a role for hippocampal TDP-43 pathology as a contributor to necrosome-positive GVD in ALS/FTLD. The absence of necroptosis-related proteins in motor neurons in ALS argues against a role for necroptosis in ALS-related motor neuron death.


Asunto(s)
Demencia Frontotemporal/patología , Hipocampo/patología , Necroptosis/fisiología , Degeneración Nerviosa/patología , Adulto , Anciano , Anciano de 80 o más Años , Femenino , Humanos , Masculino , Persona de Mediana Edad , Médula Espinal/patología
9.
BMC Cancer ; 20(1): 790, 2020 Aug 20.
Artículo en Inglés | MEDLINE | ID: mdl-32819390

RESUMEN

BACKGROUND: Accurate detection of patients with minimal residual disease (MRD) after surgery for stage II colon cancer (CC) remains an urgent unmet clinical need to improve selection of patients who might benefit form adjuvant chemotherapy (ACT). Presence of circulating tumor DNA (ctDNA) is indicative for MRD and has high predictive value for recurrent disease. The MEDOCC-CrEATE trial investigates how many stage II CC patients with detectable ctDNA after surgery will accept ACT and whether ACT reduces the risk of recurrence in these patients. METHODS/DESIGN: MEDOCC-CrEATE follows the 'trial within cohorts' (TwiCs) design. Patients with colorectal cancer (CRC) are included in the Prospective Dutch ColoRectal Cancer cohort (PLCRC) and give informed consent for collection of clinical data, tissue and blood samples, and consent for future randomization. MEDOCC-CrEATE is a subcohort within PLCRC consisting of 1320 stage II CC patients without indication for ACT according to current guidelines, who are randomized 1:1 into an experimental and a control arm. In the experimental arm, post-surgery blood samples and tissue are analyzed for tissue-informed detection of plasma ctDNA, using the PGDx elio™ platform. Patients with detectable ctDNA will be offered ACT consisting of 8 cycles of capecitabine plus oxaliplatin while patients without detectable ctDNA and patients in the control group will standard follow-up according to guideline. The primary endpoint is the proportion of patients receiving ACT when ctDNA is detectable after resection. The main secondary outcome is 2-year recurrence rate (RR), but also includes 5-year RR, disease free survival, overall survival, time to recurrence, quality of life and cost-effectiveness. Data will be analyzed by intention to treat. DISCUSSION: The MEDOCC-CrEATE trial will provide insight into the willingness of stage II CC patients to be treated with ACT guided by ctDNA biomarker testing and whether ACT will prevent recurrences in a high-risk population. Use of the TwiCs design provides the opportunity to randomize patients before ctDNA measurement, avoiding ethical dilemmas of ctDNA status disclosure in the control group. TRIAL REGISTRATION: Netherlands Trial Register: NL6281/NTR6455 . Registered 18 May 2017, https://www.trialregister.nl/trial/6281.


Asunto(s)
Protocolos de Quimioterapia Combinada Antineoplásica/administración & dosificación , Biomarcadores de Tumor/sangre , ADN Tumoral Circulante/sangre , Neoplasias del Colon/terapia , Recurrencia Local de Neoplasia/epidemiología , Adulto , Protocolos de Quimioterapia Combinada Antineoplásica/efectos adversos , Protocolos de Quimioterapia Combinada Antineoplásica/normas , Capecitabina/administración & dosificación , Capecitabina/efectos adversos , Quimioterapia Adyuvante/economía , Quimioterapia Adyuvante/psicología , Quimioterapia Adyuvante/normas , Quimioterapia Adyuvante/estadística & datos numéricos , Colectomía , Neoplasias del Colon/sangre , Neoplasias del Colon/diagnóstico , Neoplasias del Colon/mortalidad , Análisis Costo-Beneficio , Supervivencia sin Enfermedad , Femenino , Estudios de Seguimiento , Humanos , Biopsia Líquida , Masculino , Recurrencia Local de Neoplasia/prevención & control , Estadificación de Neoplasias , Neoplasia Residual , Países Bajos/epidemiología , Oxaliplatino/administración & dosificación , Oxaliplatino/efectos adversos , Aceptación de la Atención de Salud/psicología , Aceptación de la Atención de Salud/estadística & datos numéricos , Guías de Práctica Clínica como Asunto , Estudios Prospectivos , Calidad de Vida , Ensayos Clínicos Controlados Aleatorios como Asunto
10.
BMC Psychiatry ; 20(1): 127, 2020 03 17.
Artículo en Inglés | MEDLINE | ID: mdl-32183793

RESUMEN

BACKGROUND: Many persons with autism spectrum disorder (ASD) are treated in long-term specialised care. In this population, suicidal behaviour troubles patients, families, and specialists in the field because it is difficult to treat. At present, there is no documented effective therapy for suicidal behaviour in ASD (Autism Research 7:507-521, 2014; Crisis 35:301-309, 2014). Dialectical Behaviour Therapy (DBT) is an efficacious treatment programme for chronically suicidal and/or self-harm behaviour in patients with Borderline Personality Disorder (J Psychiatry 166:1365-1374, 2014; Linehan MM. Cognitive behavioural therapy of borderline personality disorder. 1993). This study will evaluate the efficacy of DBT in persons with ASD and suicidal/ self- destructive behaviour in a multicentre randomised controlled clinical trial. METHOD: One hundred twenty-eight persons with autism and suicidal and/or self-harming behaviour will be recruited from specialised mental healthcare services and randomised into two conditions: 1) the DBT condition in which the participants have weekly individual cognitive behavioural therapy sessions and a 2.5 h skills training group session twice per week during 6 months, and 2) the treatment as usual condition which consists of weekly individual therapy sessions of 30-45 min with a psychotherapist or social worker. Assessments will take place at baseline, at post-treatment (6 months), and after a follow-up period of 12 months. The mediators will also be assessed at 3 months. The primary outcome is the level of suicidal ideation and behaviour. The secondary outcomes are anxiety and social performance, depression, core symptoms of ASD, quality of life, and cost-utility. Emotion regulation and therapeutic alliance are hypothesised to mediate the effects on the primary outcome. DISCUSSION: The results from this study will provide an evaluation of the efficacy of DBT treatment in persons with ASD on suicidal and self-harming behaviour. The study is conducted in routine mental health services which enhances the generalisability of the study results to clinical practice. TRIAL REGISTRATION: ISRCTN96632579. Registered 1 May 2019. Retrospectively registered.


Asunto(s)
Trastorno del Espectro Autista , Trastorno Autístico , Trastorno de Personalidad Limítrofe , Terapia Conductual Dialéctica , Conducta Autodestructiva , Prevención del Suicidio , Trastorno del Espectro Autista/psicología , Trastorno del Espectro Autista/terapia , Trastorno Autístico/psicología , Trastorno Autístico/terapia , Terapia Conductista , Femenino , Humanos , Masculino , Calidad de Vida , Conducta Autodestructiva/terapia , Método Simple Ciego , Resultado del Tratamiento
11.
Anaesthesia ; 75(4): 499-508, 2020 04.
Artículo en Inglés | MEDLINE | ID: mdl-31984478

RESUMEN

Interscalene brachial plexus block provides analgesia for shoulder surgery but is associated with hemidiaphragmatic paralysis. Before considering a combined suprascapular and axillary nerve block as an alternative to interscalene brachial plexus block, evaluation of the incidence of diaphragmatic dysfunction according to the approach to the suprascapular nerve is necessary. We randomly allocated 84 patients undergoing arthroscopic shoulder surgery to an anterior or a posterior approach to the suprascapular nerve block combined with an axillary nerve block using 10 ml ropivacaine 0.375% for each nerve. The primary outcome was the incidence of hemidiaphragmatic paralysis diagnosed by ultrasound. Secondary outcomes included: characterisation of the hemidiaphragmatic paralysis over time; numeric rating scale pain scores; oral morphine equivalent consumption; and patient satisfaction. The incidence of hemidiaphragmatic paralysis was 40% (n = 17) vs. 2% (n = 1) in the anterior and posterior groups, respectively (p < 0.001). In one third of patients with hemidiaphragmatic paralysis, it persisted beyond the eighth hour. The median (interquartile range [range]) oral morphine equivalent consumption was significantly higher in the posterior approach when compared with the anterior approach, whether in the recovery area (20 [5-31 (0-60)] mg vs. 7.5 [0-14 (0-52)] mg, respectively; p = 0.004) or during the first 24 h (82 [61-127 (12-360) mg] vs. 58 [30-86 (0-160)] mg, respectively; p = 0.01). Patient satisfaction was comparable between groups (p = 0.6). Compared with the anterior approach, diaphragmatic function is best preserved with the posterior needle approach to the suprascapular nerve block.


Asunto(s)
Bloqueo Nervioso/efectos adversos , Complicaciones Posoperatorias/inducido químicamente , Parálisis Respiratoria/inducido químicamente , Hombro/inervación , Hombro/cirugía , Ultrasonografía Intervencional/métodos , Método Doble Ciego , Femenino , Humanos , Masculino , Persona de Mediana Edad , Bloqueo Nervioso/métodos , Resultado del Tratamiento
12.
Am J Gastroenterol ; 114(12): 1909-1918, 2019 12.
Artículo en Inglés | MEDLINE | ID: mdl-31764091

RESUMEN

INTRODUCTION: We set out to evaluate the performance of a multitarget stool DNA (MT-sDNA) in an average-risk colonoscopy-controlled colorectal cancer (CRC) screening population. MT-sDNA stool test results were evaluated against fecal immunochemical test (FIT) results for the detection of different lesions, including molecularly defined high-risk adenomas and several other tumor characteristics. METHODS: Whole stool samples (n = 1,047) were prospectively collected and subjected to an MT-sDNA test, which tests for KRAS mutations, NDRG4 and BMP3 promoter methylation, and hemoglobin. Results for detecting CRC (n = 7), advanced precancerous lesions (advanced adenoma [AA] and advanced serrated polyps; n = 119), and non-AAs (n = 191) were compared with those of FIT alone (thresholds of 50, 75, and 100 hemoglobin/mL). AAs with high risk of progression were defined by the presence of specific DNA copy number events as measured by low-pass whole genome sequencing. RESULTS: The MT-sDNA test was more sensitive than FIT alone in detecting advanced precancerous lesions (46% (55/119) vs 27% (32/119), respectively, P < 0.001). Specificities among individuals with nonadvanced or negative findings (controls) were 89% (791/888) and 93% (828/888) for MT-sDNA and FIT testing, respectively. A positive MT-sDNA test was associated with multiple lesions (P = 0.005), larger lesions (P = 0.03), and lesions with tubulovillous architecture (P = 0.04). The sensitivity of the MT-sDNA test or FIT in detecting individuals with high-risk AAs (n = 19) from individuals with low-risk AAs (n = 52) was not significantly different. DISCUSSION: In an average-risk screening population, the MT-sDNA test has an increased sensitivity for detecting advanced precancerous lesions compared with FIT alone. AAs with a high risk of progression were not detected with significantly higher sensitivity by MT-sDNA or FIT.


Asunto(s)
Adenoma/diagnóstico , Pólipos del Colon/diagnóstico , Neoplasias Colorrectales/diagnóstico , ADN/análisis , Heces/química , Hemoglobinas/análisis , Adenoma/genética , Adenoma/metabolismo , Adenoma/patología , Anciano , Proteína Morfogenética Ósea 3/genética , Pólipos del Colon/genética , Pólipos del Colon/metabolismo , Pólipos del Colon/patología , Colonoscopía , Neoplasias Colorrectales/genética , Neoplasias Colorrectales/metabolismo , Neoplasias Colorrectales/patología , Detección Precoz del Cáncer , Femenino , Hemoglobinas/metabolismo , Humanos , Inmunoquímica , Masculino , Persona de Mediana Edad , Proteínas Musculares/genética , Proteínas del Tejido Nervioso/genética , Proteínas Proto-Oncogénicas p21(ras)/genética
13.
Neuropathol Appl Neurobiol ; 45(3): 291-304, 2019 04.
Artículo en Inglés | MEDLINE | ID: mdl-29908069

RESUMEN

AIMS: Amyotrophic lateral sclerosis (ALS) is the most common motor neuron degeneration disease with a diagnostic delay of about 1 year after symptoms onset. In ALS, blood neurofilament light chain (NfL) levels are elevated, but it is not entirely clear what drives this increase and what the diagnostic performance of serum NfL is in terms of predictive values and likelihood ratios. The aims of this study were to further explore the prognostic and diagnostic performances of serum NfL to discriminate between patients with ALS and ALS mimics, and to investigate the relationship between serum NfL with motor neuron degeneration. METHODS: The diagnostic performances of serum NfL were based on a cohort of 149 serum samples of patients with ALS, 19 serum samples of patients with a disease mimicking ALS and 82 serum samples of disease control patients. The serum NfL levels were correlated with the number of regions (thoracic, bulbar, upper limb and lower limb) displaying upper and/or lower motor neuron degeneration. The prognostic performances of serum NfL were investigated based on a Cox regression analysis. RESULTS: The associated predictive values and likelihood ratio to discriminate patients with ALS and ALS mimics were established. Serum NfL was associated with motor neuron degeneration driven by upper motor neuron (UMN) degeneration and was independently associated with survival in patients with ALS. CONCLUSIONS: Altogether, these findings suggest that elevated serum NfL levels in ALS are driven by UMN degeneration and the disease progression rate and are independently associated with survival at time of diagnosis.


Asunto(s)
Esclerosis Amiotrófica Lateral/sangre , Esclerosis Amiotrófica Lateral/diagnóstico , Esclerosis Amiotrófica Lateral/patología , Neuronas Motoras/patología , Proteínas de Neurofilamentos/sangre , Adulto , Anciano , Anciano de 80 o más Años , Femenino , Humanos , Masculino , Persona de Mediana Edad , Valor Predictivo de las Pruebas
14.
Int J Law Psychiatry ; 58: 72-78, 2018.
Artículo en Inglés | MEDLINE | ID: mdl-29853015

RESUMEN

There is little to no evidence of effective treatment methods for patients with an antisocial personality disorder (ASPD). One of the reasons could be the fact that they are often excluded from mental healthcare and thus from studies. A treatment framework based on 'state of the art' methods and best practices, offering guidelines on the treatment of ASP and possibilities for more systematical research, is urgently needed. This research involved a literature search and an international Delphi-study (N = 61 experts in research, management and clinical practice focused on ASPD). The results suggested important preconditions with regard to organization of care, healthcare workers and therapy. Conclusions are that there are many ways to coordinate effective treatment and management and work toward the increased availability of evidence based care for persons with ASPD.


Asunto(s)
Trastorno de Personalidad Antisocial/terapia , Técnica Delphi , Práctica Clínica Basada en la Evidencia , Femenino , Humanos , Masculino , Resultado del Tratamiento
15.
Brain Pathol ; 28(2): 203-211, 2018 03.
Artículo en Inglés | MEDLINE | ID: mdl-28035716

RESUMEN

Amyotrophic lateral sclerosis (ALS) is a severe, progressive and ultimately fatal motor neuron disease caused by a combination of genetic and environmental factors, but its underlying mechanisms are largely unknown. To gain insight into the etiology of ALS, we here conducted genetic network and literature analyses of the top-ranked findings from six genome-wide association studies of sporadic ALS (involving 3589 cases and 8577 controls) as well as genes implicated in ALS etiology through other evidence, including familial ALS candidate gene association studies. We integrated these findings into a molecular landscape of ALS that allowed the identification of three main processes that interact with each other and are crucial to maintain axonal functionality, especially of the long axons of motor neurons, i.e. (1) Rho-GTPase signaling; (2) signaling involving the three regulatory molecules estradiol, folate, and methionine; and (3) ribonucleoprotein granule functioning and axonal transport. Interestingly, estradiol signaling is functionally involved in all three cascades and as such an important mediator of the molecular ALS landscape. Furthermore, epidemiological findings together with an analysis of possible gender effects in our own cohort of sporadic ALS patients indicated that estradiol may be a protective factor, especially for bulbar-onset ALS. Taken together, our molecular landscape of ALS suggests that abnormalities within three interconnected molecular processes involved in the functioning and maintenance of motor neuron axons are important in the etiology of ALS. Moreover, estradiol appears to be an important modulator of the ALS landscape, providing important clues for the development of novel disease-modifying treatments.


Asunto(s)
Esclerosis Amiotrófica Lateral/etiología , Esclerosis Amiotrófica Lateral/genética , Esclerosis Amiotrófica Lateral/metabolismo , Estudios de Cohortes , Femenino , Genómica , Humanos , Masculino , Persona de Mediana Edad , Polimorfismo de Nucleótido Simple
18.
Virchows Arch ; 471(2): 165-173, 2017 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-28573511

RESUMEN

The field of genomics has shifted our view on disease development by providing insights in the molecular and functional processes encoded in the genome. In the case of cancer, many alterations in the DNA accumulate that enable tumor growth or even metastatic dissemination. Identification of molecular signatures that define different stages of progression towards cancer can enable early tumor detection. In this review, the impact of genomics will be addressed using early detection of colorectal cancer (CRC) as an example. Increased understanding of the adenoma-to-carcinoma progression has led to the discovery of several diagnostic biomarkers. This combined with technical advancements, has facilitated the development of molecular tests for non-invasive early CRC detection in stool and blood samples. Even though several tests have already made it to clinical practice, sensitivity and specificity for the detection of precancerous lesions still need improvement. Besides the diagnostic qualities, also the accuracy of the intermediate endpoint is an important issue on how the effectiveness of a novel test is perceived. Here, progression biomarkers may provide a more precise measure than the currently used morphologically based features. Similar developments in biomarker use for early detection have taken place in other cancer types.


Asunto(s)
Biomarcadores de Tumor/análisis , Detección Precoz del Cáncer/métodos , Genómica/tendencias , Neoplasias Colorrectales/diagnóstico , Neoplasias Colorrectales/genética , Neoplasias Colorrectales/patología , Genómica/métodos , Humanos
20.
Rev. esp. anestesiol. reanim ; 64(3): 157-167, mar. 2017. tab, ilus, graf
Artículo en Español | IBECS | ID: ibc-159954

RESUMEN

El papel que desempeña el tronco encefálico en el control del funcionamiento basal del organismo y los detalles sobre cómo la anestesia general puede influir sobre este aún no está completamente definido. Sin embargo, en cada anestesia general el anestesiólogo debe ser consciente de la interacción de los fármacos anestésicos y la función del tronco encefálico en relación con la homeostasis del organismo. Como resultado de esta interacción habrá cambios en el nivel de consciencia, los reflejos protectores del organismo, el ritmo respiratorio, la frecuencia cardíaca, la temperatura o la presión arterial entre otros. La función del tronco encefálico puede ser explorada usando 3 enfoques diferentes: a través de la exploración clínica, analizando los cambios en la actividad eléctrica del cerebro o mediante el uso de técnicas de neuroimagen. El presente artículo de formación continuada trata de la influencia de los efectos de los fármacos anestésicos sobre la función del tronco encefálico. Para ello se estudia la exploración clínica de los nervios craneales y de diversos arcos reflejos afectados, el análisis de las señales eléctricas, tales como los cambios electroencefalográficos, y lo que se sabe acerca del tronco encefálico a través del uso de técnicas de imagen, más concretamente a través de imágenes obtenidas por resonancia magnética funcional. El objetivo es proporcionar al anestesiólogo clínico una visión global de la interacción entre los cambios inducidos por los anestésicos relacionados con la función del tronco encefálico (AU)


The exact role of the brainstem in the control of body functions is not yet well known and the same applies to the influence of general anaesthesia on brainstem functions. Nevertheless in all general anaesthesia the anaesthesiologist should be aware of the interaction of anaesthetic drugs and brainstem function in relation to whole body homeostasis. As a result of this interaction there will be changes in consciousness, protective reflexes, breathing pattern, heart rate, temperature or arterial blood pressure to name a few. Brainstem function can be explored using three different approaches: clinically, analyzing changes in brain electric activity or using neuroimaging techniques. With the aim of providing the clinician anaesthesiologist with a global view of the interaction between the anaesthetic state and homeostatic changes related to brainstem function, the present review article addresses the influence of anaesthetic drug effects on brainstem function through clinical exploration of cranial nerves and reflexes, analysis of electric signals such as electroencephalographic changes and what it is known about brainstem through the use of imaging techniques, more specifically functional magnetic resonance imaging (AU)


Asunto(s)
Humanos , Masculino , Femenino , Anestesia General/instrumentación , Anestesia General/métodos , Anestesia General , Tronco Encefálico , Nervios Craneales , Propofol/uso terapéutico , Anestesia , Enfermedades del Sistema Nervioso/complicaciones , Enfermedades del Sistema Nervioso/tratamiento farmacológico , Signos Vitales , Sueño REM , Péptidos Opioides/agonistas , Anestesia Local/métodos
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