Fight Aging! Newsletter, March 25th 2019

This study defines a new clinically relevant concept of T-cell senescence-mediated inflammatory responses in the pathophysiology of abnormal glucose homeostasis. We also found that T-cell senescence is associated with systemic inflammation and alters hepatic glucose homeostasis. The rational modulation of T-cell senescence would be a promising avenue for the treatment or prevention of diabetes. Intron Retention via Alternative Splicing as a Signature of Aging In recent years researchers have investigated changes in alternative splicing in the context of aging and age-related disease. It is thought to be important in cellular senescence, for example, but that is just one line item in the bigger picture. A given gene can code for multiple different proteins, and alternative splicing is the name given to the processes by which those different proteins are produced. A gene contains discrete DNA sequences called exons and introns, the former passed into the protein production process, and the latter removed during RNA splicing. The canonical protein produced from this genetic blueprint contains all of the exons, joined in sequence, but alternative splicing may drop exons, resulting in a different protein. The balance between the proteins produced from a given gene tends to shift with age. This might be a harmful downstream consequence of underlyi...
Source: Fight Aging! - Category: Research Authors: Tags: Newsletters Source Type: blogs

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This study reports the clinicopathologic features of 31 cases with a TP53 mutation involving nuclear localization, the largest study to date, emphasizing practical strategies for recognizing this uncommon variant and distinguishing it from the p53 wild-type pattern. The study also evaluates the prognostic significance of TP53 mutation involving nuclear localization in the ovarian high-grade serous carcinoma (HGSC) cohort of The Cancer Genome Atlas database. Most of the 31 tumors were advanced stage pelvic or endometrial HGSC. All TP53 mutations were predicted to result in loss of function. The p53 overexpression pattern wa...
Source: The American Journal of Surgical Pathology - Category: Pathology Tags: Original Articles Source Type: research
Ovarian clear cell carcinoma (OCCC) and ovarian endometrioid carcinoma (OEC) are both associated with endometriosis but differ in histologic phenotype, biomarker profile, and survival. Our objectives were to refine immunohistochemical (IHC) panels that help distinguish the histotypes and reassess the prevalence of mismatch repair deficiency (MMRd) in immunohistochemically confirmed OCCC. We selected 8 candidate IHC markers to develop first-line and second-line panels in a training set of 344 OCCC/OEC cases. Interobserver reproducibility of histotype diagnosis was assessed in an independent testing cohort of 100 OCC/OEC ini...
Source: The American Journal of Surgical Pathology - Category: Pathology Tags: Original Articles Source Type: research
This study supports the proposal for the usage of the term “EBV-associated pulmonary carcinoma” to encompass the entire morphologic spectrum of this distinct EBV-associated disease entity.
Source: The American Journal of Surgical Pathology - Category: Pathology Tags: Original Articles Source Type: research
Extraneural metastases of glioblastoma (GBM), although rare, are becoming an increasingly recognized occurrence. Currently, the biological mechanism underlying this rare occurrence is not understood. To explore the potential genomic drivers of extraneural metastasis in GBM, we present the molecular features of 4 extraneural metastatic GBMs, along with a comprehensive review and analysis of previously reported cases that had available molecular characterization. In addition to our 4 cases, 42 patients from 35 publications are reviewed. To compare the molecular profiles between GBM cases with extraneural metastasis and the g...
Source: The American Journal of Surgical Pathology - Category: Pathology Tags: Original Articles Source Type: research
High-grade prostatic adenocarcinoma involving duct/acinar structures is labeled intraductal carcinoma of the prostate (IDCP). As numerous studies have shown that IDCP is associated with high stage disease with a significant negative impact on cancer-specific survival, accurate diagnosis is crucial to ensure appropriate patient management. The definition of IDCP recommended by 2016 World Health Organization (WHO) classification suggests that cases of IDCP with micropapillary or loose cribriform architecture without comedonecrosis should have cells with ≥6× nuclear enlargement. It is unclear how this size criterion ...
Source: The American Journal of Surgical Pathology - Category: Pathology Tags: Original Articles Source Type: research
We report a novel NIPBL-NACC1 gene fusion in a rare primary hepatic neoplasm previously described as the “cholangioblastic variant of intrahepatic cholangiocarcinoma.” The 2 index cases were identified within our consultation files as morphologically distinctive primary hepatic neoplasms in a 24-year-old female and a 54-year-old male. The neoplasms each demonstrated varied architecture, including trabecular, organoid, microcystic/follicular, and infiltrative glandular patterns, and biphasic cytology with large, polygonal eosinophilic cells and smaller basophilic cells. The neoplasms had a distinctive immunoprof...
Source: The American Journal of Surgical Pathology - Category: Pathology Tags: Original Articles Source Type: research
This article discusses the pathophysiology, risk factors, clinical manifestations, diagnostics, and pharmacologic treatment of pulmonary arterial hypertension, as well as nursing considerations for caring for patients with this rare disease.
Source: Nursing - Category: Nursing Tags: Feature: NCPD Connection Source Type: research
No abstract available
Source: Nursing - Category: Nursing Tags: Department: INFOBYTES Source Type: research
An advisory panel to the F.D.A. will consider Pfizer ’s application for those ages 5-to-11 on Tuesday.
Source: NYT Health - Category: Consumer Health News Authors: Tags: Coronavirus (2019-nCoV) Vaccination and Immunization Children and Childhood Johnson & Moderna Inc Pfizer Inc Fauci, Anthony S United States Source Type: news
Discussion Anorexia nervosa is an eating disorder with an intense fear of being overweight (i.e. distorted body image), and self-starvation and excessive weight loss. It is more common in women (1.2%) than men (0.2%) but can be seen in both genders. Risk factors include high-intelligence, perfectionism/inflexibility, anxiety, activities where thinner body types are expected (e.g. dancer, diver, gymnast, long-distance runner, volleyball player, etc.) Other eating disorders include bulimia nervosa (i.e. cycles of binge eating and then purging), binge eating disorder (i.e. purging), orthorexia (i.e. obsessions with healthful ...
Source: - Category: Pediatrics Authors: Tags: Uncategorized Source Type: news
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