Publications by authors named "S M Sayed"

Langerhans cell histiocytosis (LCH) is a rare disorder, especially among adults, characterized by abnormal accumulation of dendritic histiocytes in various tissues, presenting as either single- or multi-system disease. In adults, spinal involvement is less common than long bone, while central nervous system manifestations, such as pituitary gland enlargement and stalk thickening, affect about a quarter of adult patients and may lead to significant endocrine disorders. Salivary gland involvement is another extremely rare manifestation of LCH.

View Article and Find Full Text PDF

Pomegranate (Punica granatum) is a widely cultivated fruit historically recognized for its health benefits and is regarded as a nutritional powerhouse. Pomegranate has a unique composition of bioactive compounds including hydrolysable tannins, anthocyanins, and other polyphenolic components. Of those, punicalagin and its subsequent metabolites are the most extensively studied, demonstrating antioxidant, anti-inflammatory, anti-cancer, and anti-nociceptive activity.

View Article and Find Full Text PDF

Background: The immune response against tumors relies on distinguishing between self and non-self, the basis of cancer immunotherapy. Neoantigens from somatic mutations are central to many immunotherapeutic strategies and understanding their landscape in breast cancer is crucial for targeted interventions. We aimed to profile neoantigens in Kenyan breast cancer patients using genomic DNA and total RNA from paired tumor and adjacent non-cancerous tissue samples of 23 patients.

View Article and Find Full Text PDF

Background: Electrosurgery is widely used in all surgical specialities. There is evidence that surgeons in different disciplines and with different experience levels have an inadequate understanding of the basics of electrosurgery and its complications. This can increase the risk of electrosurgical complications.

View Article and Find Full Text PDF

Signal transduction downstream of activating stimuli controls CD8+ T cell biology, however these external inputs can become uncoupled from transcriptional regulation in Primary Immune Regulatory Disorders (PIRDs). Gain-of-function (GOF) variants in STAT3 amplify cytokine signaling and cause a severe PIRD characterized by early onset autoimmunity, lymphoproliferation, recurrent infections, and immune dysregulation. In both primary human and mouse models of STAT3 GOF, CD8+ T cells have been implicated as pathogenic drivers of autoimmunity.

View Article and Find Full Text PDF

A PHP Error was encountered

Severity: Warning

Message: A non-numeric value encountered

Filename: controllers/Author.php

Line Number: 219

Backtrace:

File: /var/www/html/application/controllers/Author.php
Line: 219
Function: _error_handler

File: /var/www/html/index.php
Line: 316
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: A non-numeric value encountered

Filename: libraries/Pagination.php

Line Number: 413

Backtrace:

File: /var/www/html/application/controllers/Author.php
Line: 274
Function: create_links

File: /var/www/html/index.php
Line: 316
Function: require_once