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2.
Mem Cognit ; 51(8): 1807-1818, 2023 11.
Artigo em Inglês | MEDLINE | ID: mdl-37458968

RESUMO

Negation is often used to contradict or correct (e.g. There is no dog here.). While rejecting some state of affairs that is presumed to hold for the recipient (e.g. There is a dog here.), the speaker might implicitly suggest a set of plausible alternatives (e.g. There is a wolf instead.). Prior work indicates that alternatives are highly relevant to the comprehension of sentences involving focus: in priming studies, listeners infer plausible alternatives to focused items even when they are not contextually available. So far it is unclear whether negation similarly activates an automatic search for plausible alternatives. The current study was designed to investigate this question, by looking at the activation levels of nouns after negative and affirmative sentences. In a series of priming experiments, subjects were presented with negative and affirmative sentences (e.g. There is an/no apple.), followed by a lexical decision task with targets including plausible alternatives (e.g. pear), as well as semantically related but implausible alternatives (e.g. seed). An interaction of Sentence Polarity and Prime-Target Relation was expected, with negation facilitating responses to plausible alternatives. Results of the first experiment were numerically in line with the hypothesis but the interaction just missed significance level. A post hoc analysis revealed the expected significant interaction. Possible roles of sentential context and goodness of alternatives are discussed. A further experiment confirms that the goodness of alternatives is in fact critical in modulating the effect.


Assuntos
Compreensão , Idioma , Humanos , Compreensão/fisiologia
3.
Psychol Res ; 87(1): 124-136, 2023 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-35220497

RESUMO

The current study originates from inconsistent findings within the framework of embodied language processing, specifically in the reading-by-rotating literature: whereas some studies report a match advantage (e.g., Zwaan and Taylor (J Exp Psychol 135:1, 2006)), i.e., shorter reading times when the direction of a linguistically conveyed manual rotation matched rather than mismatched the direction of an actually to be performed manual rotation Claus (Acta Psychol 156:104-113, 2015) found a mismatch advantage. The current study addresses two explanations that were previously discussed as potentially responsible for this inconsistency: on the one hand, differences in the knob devices employed; on the other hand, differences in the perspectives adopted by the readers depending on the number of characters involved in the narratives. Concurrently, the study exploits individual differences in motoric experience to explore the experiential basis of action-sentence compatibility effects. The results are inconclusive with respect to the two explanations. However, in their overall picture, they contribute suggestive considerations for the ongoing debate on action-simulation effects by pointing to the potential role of interindividual variation in motoric experience.


Assuntos
Compreensão , Idioma , Humanos , Simulação por Computador , Individualidade
4.
Front Immunol ; 13: 866167, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35603187

RESUMO

Pathological correlates of potential autoimmune gastritis (AIG), defined by anti-parietal cell antibody (PCA) positivity in the absence of gastric atrophy, have never been described. We herein aimed to assess intraepithelial lymphocyte (IEL) infiltration in gastric corpus of AIG patients. From 2000 to 2021, among 53 potential AIG patients, we focused on nine (median age 61 years, IQR 53-82; four females) who subsequently developed overt AIG. IEL infiltration of the oxyntic mucosa was assessed before and after developing overt AIG by measuring deep and superficial CD3+ IEL. AIG patients with different degrees of corpus atrophy, healthy controls (HC), active H. pylori gastritis, celiac disease (CD), and Hashimoto's thyroiditis patients were included as controls. Of note, deep, but not superficial, CD3+ IEL count was higher (p<0.001) in potential AIG compared to HC and H. pylori gastritis. Deep CD3+ IEL infiltration did not change before or after the evolution into atrophy (median 9.6, IQR 8.8-12.4, vs 11.3, IQR 9.4-12.9). No difference was found in deep CD3+ IEL infiltration among potential, mild, and severe AIG, and compared to Hashimoto's thyroiditis or CD. A deep CD3+ IEL cut-off of >7/100 epithelial cells allowed discrimination of any AIG stage and severity (AUC=0.842). We conclude that an increased deep CD3+ IEL infiltration of the oxyntic mucosa could represent a marker of potential AIG. Prospective studies including a larger number of potential AIG patients are needed.


Assuntos
Doenças Autoimunes , Doença Celíaca , Gastrite , Doença de Hashimoto , Linfócitos Intraepiteliais , Atrofia , Doença Celíaca/patologia , Feminino , Mucosa Gástrica , Doença de Hashimoto/patologia , Humanos , Linfócitos Intraepiteliais/patologia , Pessoa de Meia-Idade , Estudos Prospectivos
5.
Cogn Sci ; 45(7): e13015, 2021 07.
Artigo em Inglês | MEDLINE | ID: mdl-34288035

RESUMO

Conversational negation often behaves differently from negation as a logical operator: when rejecting a state of affairs, it does not present all members of the complement set as equally plausible alternatives, but it rather suggests some of them as more plausible than others (e.g., "This is not a dog, it is a wolf/*screwdriver"). Entities that are semantically similar to a negated entity tend to be judged as better alternatives (Kruszewski et al., 2016). In fact, Kruszewski et al. (2016) show that the cosine similarity scores between the distributional semantics representations of a negated noun and its potential alternatives are highly correlated with the negated noun-alternatives human plausibility ratings. In a series of cloze tasks, we show that negation likewise restricts the production of plausible alternatives to similar entities. Furthermore, completions to negative sentences appear to be even more restricted than completions to an affirmative conjunctive context, hinting at a peculiarity of negation.


Assuntos
Idioma , Semântica , Animais , Comunicação , Cães , Humanos
7.
J Clin Med ; 11(1)2021 Dec 27.
Artigo em Inglês | MEDLINE | ID: mdl-35011865

RESUMO

The development of research in genetic and biochemical fields has made it possible to investigate certain metabolic aspects of the microenvironment of chronic skin lesions, including altered cell signalling, highlighting its importance in determining the blockage of repair processes. The purpose of this prospective observational study is to evaluate the efficacy of a medical device consisting of a polyester scaffold enriched with an oleic matrix with controlled release of ROS in the management of LABC skin lesions. During the period from October 2018 to March 2020, 20 patients with locally advanced breast cancer were enrolled and ten were treated with the devices abovementioned. After 30 days of treatment all patients treated reported a general improvement in local conditions with reduction in ulceration area, exudate and odour. The results suggest that the application of these devices even in particular conditions (healthy and neoplastic tissue) does not lead to the onset of negative effects due to the release of ROS, though their role in tissue repair requires further study to fully understand their potential and increase the fields of application of the device by exploiting its modulation capabilities.

8.
Hematol Oncol ; 38(5): 689-697, 2020 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-32738175

RESUMO

Non-chronic lymphocytic leukemia (non-CLL) clonal B-cell lymphocytosis (CBL) encompasses a heterogeneous group of hematologic disorders that are still poorly understood. To shed light on their biological aspects, we retrospectively analyzed a highly selected series of 28 patients, who had a clonal B-cell population in the peripheral blood and in the bone marrow, without evidence of lymphoma. Extended targeted next-generation sequencing revealed wide molecular heterogeneity with MYD88 (14%), PDE4DIP (14%), BIRC3 (11%), CCND3 (11%), NOTCH1 (11%), and TNFAIP3 (11%) as the most mutated genes. Mutations of MYD88 were "nonclassic" in most cases. Although some genetic lesions were overlapping with indolent lymphomas, mainly splenic B-cell lymphomas of marginal zone origin and splenic diffuse red pulp small B-cell lymphoma, the genetic profile of our non-CLL CBL series seemed to suggest that various pathways could be involved in the pathogenesis of these disorders, not mirroring any specific lymphoma entity. These data better enlighten the molecular characteristics of non-CLL CBL; however, more efforts are needed in order to improve the diagnostic process, prognostication, and clinical management.


Assuntos
Biomarcadores Tumorais , Heterogeneidade Genética , Sequenciamento de Nucleotídeos em Larga Escala , Leucemia Linfocítica Crônica de Células B/diagnóstico , Leucemia Linfocítica Crônica de Células B/genética , Idoso , Alelos , Suscetibilidade a Doenças , Feminino , Expressão Gênica , Predisposição Genética para Doença , Humanos , Cadeias Pesadas de Imunoglobulinas/genética , Imuno-Histoquímica , Imunofenotipagem , Leucemia Linfocítica Crônica de Células B/metabolismo , Masculino , Pessoa de Meia-Idade , Mutação
9.
Aliment Pharmacol Ther ; 50(11-12): 1172-1180, 2019 12.
Artigo em Inglês | MEDLINE | ID: mdl-31621927

RESUMO

BACKGROUND: Autoimmune atrophic gastritis (AAG) is an immune-mediated disorder characterised by destruction of gastric oxyntic mucosa AIM: To explore gastric histopathological evolution in a cohort of AAG patients over a prolonged follow-up METHODS: Single centre prospective study enrolling consecutive patients with histologically confirmed AAG between 2000 and 2018. All AAG patients undergoing endoscopic follow-up every 1-3 years were classified as having stages 1, 2 or 3 according to atrophy severity (mild, moderate and severe). AAG patients with either glandular or neuroendocrine dysplasia/neoplasia were classified as having stage 4. Disease stage progression, and changes in serum anti-parietal cell antibody (PCA), chromogranin A and gastrin-17 were assessed. RESULTS: In total, 282 AAG patients (mean age 60.3 years; F:M ratio 2.4:1; median follow-up 3 years, interquartile range 1-7) were enrolled. All patients with stages 1 or 2 progressed to stage 2 or 3 over time with a steady trend (P = .243) and regression from a severe to a milder stage was never noticed. Disease progression of patients with stages 1 or 2 occurred within the first 3 years. PCA positivity rate did not change over time. Stage 3 patients had higher gastrin-17 levels compared to patients with stages 1 and 2 (median 606 vs 295 pg/mL; P < .001). In stage 3, the hazard ratio for the risk of developing stage 4 was 6.6 (95% CI 1.5-29; P = .001). CONCLUSIONS: AAG is a steadily progressive disease, in which stages 1 and 2 always progress to stage 3. The risk of developing a complicated disease stage is greater in patients with more severe gastric lesions.


Assuntos
Doenças Autoimunes/patologia , Gastrite Atrófica/patologia , Adulto , Idoso , Doenças Autoimunes/sangue , Progressão da Doença , Feminino , Mucosa Gástrica/patologia , Gastrinas/sangue , Gastrite Atrófica/sangue , Humanos , Masculino , Pessoa de Meia-Idade , Tumores Neuroendócrinos/patologia , Estudos Prospectivos , Índice de Gravidade de Doença , Neoplasias Gástricas/patologia
10.
J Radiol Case Rep ; 13(3): 28-36, 2019 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-31565175

RESUMO

Castleman Disease is a lymphoid disorder characterized by the presence of an enlarged or abnormal lymph node/lymphatic tissue. The disease is classified into unicentric or multicentric variants. The unicentric form is a benign disorder that is usually asymptomatic and consists of a single lymphoid mass that is predominantly located in the mediastinum, but can also rarely develop in the neck or abdomen. The multicentric type involves more than one lymphatic station and is related to the presence of type B symptoms (fevers, night sweats and weight loss), HIV/HHV8 infection and increased serum IL-6 levels. We present the case of an unusual pelvic intraperitoneal manifestation of Castleman Disease in a 52-year-old caucasian woman who showed clinical, radiological, histological and laboratory findings common to both Unicentric and Multicentric Castleman Disease.


Assuntos
Hiperplasia do Linfonodo Gigante/diagnóstico por imagem , Pelve/diagnóstico por imagem , Hiperplasia do Linfonodo Gigante/patologia , Feminino , Humanos , Linfonodos/diagnóstico por imagem , Linfonodos/patologia , Pessoa de Meia-Idade , Pelve/patologia , Tomografia por Emissão de Pósitrons combinada à Tomografia Computadorizada , Tomografia Computadorizada por Raios X , Ultrassonografia
11.
Endocr Pathol ; 29(4): 369-373, 2018 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-30076568

RESUMO

Grade 3 well-differentiated neuroendocrine tumors (G3 NETs) have been characterized in the pancreas and stomach and distinguished from low-to-intermediate grade (G1-G2) NETs, as well as from highly malignant, poorly differentiated neuroendocrine carcinomas (NECs). Up to now, no G3 NET has been thoroughly described in the distal small intestine. We herein report a case of a 61-year-old man presenting with carcinoid syndrome. The surgical specimen showed, in a background of small G1 ileal NETs, a larger, grade 3 NET, which retained the nesting pattern and the expression of serotonin, chromogranin-A, and type 2A somatostatin receptors, typical of well-differentiated jejuno-ileal NETs. The patient had G3 NET metastasis to the liver and he died 14 months after surgery, due to deterioration in his clinical conditions.


Assuntos
Tumor Carcinoide/patologia , Neoplasias do Íleo/patologia , Neoplasias Intestinais/patologia , Síndrome do Carcinoide Maligno/etiologia , Tumor Carcinoide/complicações , Humanos , Neoplasias do Íleo/complicações , Neoplasias Intestinais/complicações , Masculino , Pessoa de Meia-Idade , Gradação de Tumores
12.
Neuroendocrinology ; 107(2): 114-126, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-29895024

RESUMO

BACKGROUND: Gastric neuroendocrine neoplasms (NENs) are very heterogeneous, ranging from mostly indolent, atrophic gastritis-associated, type I neuroendocrine tumors (NETs), through highly malignant, poorly differentiated neuroendocrine carcinomas (pdNECs), to sporadic type III NETs with intermediate prognosis, and various rare tumor types. Histologic differentiation, proliferative grade, size, level of gastric wall invasion, and local or distant metastases are used as prognostic markers. However, their value remains to be tailored to specific gastric NENs. METHODS: Series of type I NETs (n = 123 cases), type III NETs (n = 34 cases), and pdNECs (n = 43 cases) were retrospectively collected from four pathology centers specializing in endocrine pathology. All cases were characterized clinically and histopathologically. During follow-up (median 93 months) data were recorded to assess disease-specific patient survival. RESULTS: Type I NETs, type III NETs, and pdNECs differed markedly in terms of tumor size, grade, invasive and metastatic power, as well as patient outcome. Size was used to stratify type I NETs into subgroups with significantly different invasive and metastatic behavior. All 70 type I NETs < 0.5 cm (micro-NETs) were uneventful. Ki67-based grading proved efficient for the prognostic stratification of type III NETs; however, grade 2 (G2) was not associated with tumor behavior in type I NETs. Although G3 NETs (2 type I and 9 type III) had a very poor prognosis, it was found that patient survival was longer with type III G3 NETs compared to pdNECs. CONCLUSIONS: Given the marked, tumor type-related behavior differences, evaluation of gastric NEN prognostic parameters should be tailored to the type of neoplastic disease.


Assuntos
Tumores Neuroendócrinos/classificação , Tumores Neuroendócrinos/patologia , Neoplasias Gástricas/classificação , Neoplasias Gástricas/patologia , Adulto , Idoso , Intervalo Livre de Doença , Feminino , Seguimentos , Humanos , Estimativa de Kaplan-Meier , Estudos Longitudinais , Masculino , Pessoa de Meia-Idade , Tumores Neuroendócrinos/mortalidade , Prognóstico , Estudos Retrospectivos , Neoplasias Gástricas/mortalidade
13.
Post Reprod Health ; 20(1): 22-29, 2014 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-24879777

RESUMO

Sexual health in the menopause is a medical challenge because the progressive decline of sexual hormones interacts with the aging process and many psychosocial stressors modulate vulnerability for sexual symptoms (low sexual desire, poor arousal and lubrication, dyspareunia, orgasmic dysfunction and lack of satisfaction). In clinical practice, a coordinated approach is needed to optimally manage the risk for developing female sexual dysfunction (FSD), especially when chronic conditions are present. Biomedical and psychosocial interventions include general education, recognition of signs and symptoms, promotion of health, attention to the partner and individualization of treatment. Counselling to overcome personal and relational difficulties should be always combined with hormonal and non-hormonal strategies to maximize biological signals driving the sexual response. By enhancing women's abilities to cope with sexual changes at midlife, health care providers may significantly optimize healthy aging and partnership.

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