Publications by authors named "Hekmat El-Gammal"

Article Synopsis
  • The retina adapts to different light conditions through functional adjustments in retinal cells and genes, particularly by studying opsins, which are crucial for assessing these adaptations.
  • The current research focuses on the laughing dove's retina and reveals its structural features, such as a highly pigmented epithelium and specialized oil droplets, enhancing its ability for color vision and low-light sensitivity.
  • Findings indicate a shift in color vision capabilities from UV to violet sensitivity, highlighting the retina's plasticity and the need for further research into the relationship between light exposure and genetic structures.
View Article and Find Full Text PDF

Background: Hypertrophy of the nucleolus is a distinctive cytological feature of malignant cells and corresponds to aggressive behaviour. This study aimed to identify the key gene associated with nucleolar prominence (NP) in breast cancer (BC) and determine its prognostic significance.

Methods: From The Cancer Genome Atlas (TCGA) cohort, digital whole slide images identified cancers having NP served as label and an information theory algorithm was applied to find which mRNA gene best explained NP.

View Article and Find Full Text PDF

Green synthesized nanoparticles are more advantageous over conventionally prepared ones due to less toxicity, production cost, and environmental hazards. With the widespread of the utilization of nanoparticles, little is known about the maternal-fetal transplacental transfer of green nanoparticles. We have biosynthesized silver nanoparticles using metabolites of Streptomyces malachitus and sunlight then coated them with chitosan.

View Article and Find Full Text PDF

Objective: Acrylamide (ACR), a proved rodent carcinogen and neurotoxic agent, is present in significant quantities in commonly consumed foods such as fried potato chips (FPC) and French fries, raising a health concern worldwide. We investigated and compared the neurotoxic effects of ACR and FPC on postnatal development.

Methods: Female rats were treated with ACR (30 mg/kg of body weight), fed a diet containing approximately 30% of FPC during pregnancy, or fed a standard diet (control) and their offspring were examined.

View Article and Find Full Text PDF