Papers by Pamoda Jayatunga
Insects, 2021
Aedes albopictus is an important vector of dengue worldwide. Eliminating dengue in Sri Lanka depe... more Aedes albopictus is an important vector of dengue worldwide. Eliminating dengue in Sri Lanka depends entirely on controlling the vector and human-vector contact. Thus, studying the bionomics and behavior of Ae. albopictus is paramount. The objective of this study was to evaluate the effect of the excreta of cow, goat and pig on the attraction, oviposition and development of Ae. albopictus. Bioassay chambers determined the mosquito stimulatory response. Ovitraps determined Ae. albopictus oviposition preference to excreta singly, in combination and on fermentation. The excreta effect on larval development was also determined. The results revealed that Ae. albopictus gravid females were significantly attracted to goat excreta but were repelled by pig excreta. The oviposition preference was highest for cow excreta and lowest for pig excreta. For excreta combinations, the Cow+Goat combination increased the oviposition while the Pig+Goat combination reduced the oviposition. The ovipositio...
Alzheimer’s disease (AD) is a devastating neurodegenerative disorder that affects approximately 6... more Alzheimer’s disease (AD) is a devastating neurodegenerative disorder that affects approximately 60-80% of all clinically diagnosed dementia cases worldwide. It is the second major cause of death in Australia. The progressive nature of the disease is characterized by cognitive deficits that worsen over time, usually leading to death within about a decade from their first manifestation. The AD brain is classically characterized by extracellular deposition of amyloid-β (Aβ) protein aggregates, as senile plaques, and intracellular neurofibrillary tangles (NFTs), composed of hyper-phosphorylated forms of the microtubule-associated protein Tau. There is no effective treatment for AD and the drugs currently being used to treat the disease only alleviate symptoms for a limited period in most cases. There has been limited success in clinical trials for some proposed therapies, so attention has been drawn towards using alternative approaches, including prevention strategies. As a result, nutr...
Nutrients
Mitochondrial dysfunction including deficits of mitophagy is seen in aging and neurodegenerative ... more Mitochondrial dysfunction including deficits of mitophagy is seen in aging and neurodegenerative disorders including Alzheimer’s disease (AD). Apart from traditionally targeting amyloid beta (Aβ), the main culprit in AD brains, other approaches include investigating impaired mitochondrial pathways for potential therapeutic benefits against AD. Thus, a future therapy for AD may focus on novel candidates that enhance optimal mitochondrial integrity and turnover. Bioactive food components, known as nutraceuticals, may serve as such agents to combat AD. Urolithin A is an intestinal microbe-derived metabolite of a class of polyphenols, ellagitannins (ETs). Urolithin A is known to exert many health benefits. Its antioxidant, anti-inflammatory, anti-atherogenic, anti-Aβ, and pro-mitophagy properties are increasingly recognized. However, the underlying mechanisms of urolithin A in inducing mitophagy is poorly understood. This review discusses the mitophagy deficits in AD and examines potent...
Insects
Aedes albopictus is an important vector of dengue worldwide. Eliminating dengue in Sri Lanka depe... more Aedes albopictus is an important vector of dengue worldwide. Eliminating dengue in Sri Lanka depends entirely on controlling the vector and human-vector contact. Thus, studying the bionomics and behavior of Ae. albopictus is paramount. The objective of this study was to evaluate the effect of the excreta of cow, goat and pig on the attraction, oviposition and development of Ae. albopictus. Bioassay chambers determined the mosquito stimulatory response. Ovitraps determined Ae. albopictus oviposition preference to excreta singly, in combination and on fermentation. The excreta effect on larval development was also determined. The results revealed that Ae. albopictus gravid females were significantly attracted to goat excreta but were repelled by pig excreta. The oviposition preference was highest for cow excreta and lowest for pig excreta. For excreta combinations, the Cow+Goat combination increased the oviposition while the Pig+Goat combination reduced the oviposition. The ovipositio...
International Journal of Food Science & Technology
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Papers by Pamoda Jayatunga