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The rate at which individuals discount future rewards (i.e., discounting rate) is strongly associated with their propensity for substance abuse as well as myriad other negative health behaviors. An excessive preference for immediately available rewards suggests a shortened time horizon in which immediate rewards are overvalued and future, potentially negative consequences are undervalued. This review outlines Reinforcer Pathology Theory (i.e., the interaction between excessive preference for immediately available rewards and the overvaluation of a particular commodity that offers brief, intense reinforcement), its neurobiological/behavioral underpinnings, and its implications for treating substance use disorders. In doing so, the current review provides an overview of a variety of ways in which interventions have been used to manipulate aspects of reinforcer pathology in an individual, including narrative theory, framing manipulations, and neuromodulation (e.g., working memory training, TMS) which may serve as promising avenues for the modulation of the temporal window and/or valuation of reinforcers.
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http://dx.doi.org/10.1007/7854_2020_145 | DOI Listing |
Arq Bras Cir Dig
September 2025
Universidade de São Paulo, Faculty of Medicine, Department of Gastroenterology, Colonoscopy Division - São Paulo (SP), Brazil.
Background: Artificial intelligence (AI)-assisted colonoscopy has emerged as a tool to enhance adenoma detection rates (ADRs) and improve lesion characterization. However, its performance in real-world settings, especially in developing countries, remains uncertain.
Aims: The aim of this study was to evaluate the impact of AI on ADRs and its concordance with histopathological diagnosis.
Cancer Med
September 2025
Department of Chinese Medicine, Sichuan Provincial People's Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, China.
Background: Melanoma is one of the most immunogenic malignancies, yet resistance to immune checkpoint inhibitors (ICIs) remains a major obstacle to durable therapeutic success. Emerging evidence indicates that aging-related processes, including cellular senescence and immunosenescence, can reshape the tumor microenvironment (TME) to favor immune evasion and disease progression. Senescent melanoma and stromal cells secrete a senescence-associated secretory phenotype (SASP) that alters immune cell recruitment and function, while immunosenescence leads to diminished cytotoxic responses and the accumulation of dysfunctional or suppressive immune subsets.
View Article and Find Full Text PDFCureus
August 2025
Investigation, Hospital Regional de Alta Especialidad de Ixtapaluca, Mexico City, MEX.
Splenic pseudocysts represent an uncommon condition in abdominal surgery, generally resulting from trauma, infection, or ischemic processes. Histologically, they are characterized by the absence of an epithelial lining; that is, they lack the inner layer of cells typically found in true cysts. Its clinical presentation is non-specific, commonly manifesting with abdominal pain, early satiety, or alterations in bowel habits, which lead to late or incidental diagnoses through imaging studies.
View Article and Find Full Text PDFAPMIS
September 2025
Cancer Cytogenomic Laboratory, Center for Research and Drug Development (NPDM), Federal University of Ceara, Fortaleza, Ceara, Brazil.
Toll-like receptors (TLRs) are essential components of the innate immune system, functioning as pattern recognition receptors (PRRs) to detect pathogen-associated molecular patterns (PAMPs) and damage-associated molecular patterns (DAMPs). In hematological malignancies, particularly myelodysplastic syndromes (MDS), acute myeloid leukemia (AML), and chronic myeloid leukemia (CML), TLRs influence inflammation, disease progression, and therapeutic response. This review highlights the prognostic relevance of TLR expression, the role of the MyD88 signaling pathway in clonal evolution, and the dual nature of TLR-mediated immune responses, either promoting antitumor activity or contributing to leukemogenesis.
View Article and Find Full Text PDFMedicine (Baltimore)
September 2025
Department of Geriatrics, Beijing Haidian Hospital, Beijing, China.
The causal relationship between immune cell signatures and multiple myeloma (MM) pathobiology remains incompletely understood. This study aimed to explore the bidirectional causal associations between 731 circulating immune cell traits and MM risk using a two-sample, bidirectional Mendelian randomization (MR) approach. Two-sample MR analyses were conducted utilizing genome-wide association study (GWAS) summary statistics for 731 immune cell phenotypes and MM GWAS datasets.
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