Publications by authors named "Aidan Farrell"

Peptic ulcer disease (PUD) is a well-known and commonly encountered gastrointestinal (GI) pathology. and nonsteroidal anti-inflammatory drug (NSAID) use are the cause of the majority of PUD cases, although other rare etiologies may be encountered. PUD is confirmed by endoscopic visualization of gastric ulcers, with radiographic imaging being less impactful in diagnosis.

View Article and Find Full Text PDF

Pleurocutaneous fistula (PCF) is a pathological communication between the pleural space and subcutaneous tissue. This rare condition occurs as a complication of infection, malignancy, and therapeutic procedures such as tube thoracostomies. PCF is typically confirmed with computed tomography (CT) imaging.

View Article and Find Full Text PDF

Pseudoaneurysms are a commonly encountered pathology, though pseudoaneurysms of the visceral arteries are a less frequent, but potentially deadly entity. Transarterial embolization is the typical treatment of visceral pseudoaneurysms, but success is dependent on anatomy that is conducive to selecting the supplying vessel. Abdominal ultrasound is a viable method to effectively treat visceral pseudoaneurysms when transarterial embolization is not possible.

View Article and Find Full Text PDF

Acute cholangitis is a well-known biliary tree pathology most often encountered in patients with gallstone disease. When left untreated, acute cholangitis can lead to severe complications, including death. Therefore, identifying and properly treating acute cholangitis is crucial to avoiding such complications.

View Article and Find Full Text PDF

Heroin inhalation leukoencephalopathy (HIL) is a rare complication of vaporized heroin inhalation leading to white matter degeneration resulting in a range of neurologic disturbances including softened speech, cerebellar ataxia, behavioral changes, cerebellar gait abnormalities, and even respiratory failure resulting in death in the most severe cases. Magnetic resonance imaging (MRI) most commonly demonstrates bilateral hyperintensities affecting the basal ganglia, periventricular white matter, and cerebellum. In this case report, we present a relatively mild case of HIL in a young female patient to describe the characteristic challenges associated with the condition's presentation, diagnosis, and treatment.

View Article and Find Full Text PDF

Hiatal hernias are commonly encountered in elderly patients, predisposing patients to the common condition of gastroesophageal reflux disease (GERD). Depending on the size of the hernia, different complications can arise. Large hernias can lead to development of gastric volvulus, obstruction, strangulation, and perforation.

View Article and Find Full Text PDF

Temperate perennial fruit and nut trees play varying roles in world food diversity-providing edible oils and micronutrient, energy, and protein dense foods. In addition, perennials reuse significant amounts of biomass each year providing a unique resilience. But they also have a unique sensitivity to seasonal temperatures, requiring a period of dormancy for successful growing season production.

View Article and Find Full Text PDF

Many tropical species live close to their thermal limits within a narrow niche. Here, we investigate the ecophysiological limits of the tropical tree Podocarpus trinitensis, which is endemic to Trinidad and Tobago where most populations exist as isolated stands on hilltops. Five wild stands from a range of elevations were compared in the field with measurements of leaf temperature, canopy cover, stomatal conductance (gs), chlorophyll content and several chlorophyll fluorescence parameters.

View Article and Find Full Text PDF
Article Synopsis
  • Reliable estimates of climate change's impact on crop production are essential for evaluating food system sustainability.
  • A new global dataset combines existing meta-analyses and recent literature, covering 8703 simulations from 202 studies on major crops like maize, rice, soybean, and wheat from 1984 to 2020.
  • This dataset allows for better evaluation of climate change effects on crop yields in 91 countries under various emission scenarios, aiding data-driven machine learning applications.
View Article and Find Full Text PDF

Cacao ( L.) is a shade-tolerant tree species, but in recent years it has increasingly been cultivated under full sun conditions in an orchard system where photoinhibition is likely. Here we investigate the extent of photoinhibition in 17 cacao accessions from a range of genetic groups, growing under high light conditions.

View Article and Find Full Text PDF

Purpose: Necrotizing enterocolitis (NEC) is a leading cause of death in premature infants. Breast feeding decreases the incidence of NEC but, even with aggressive promotion of nursing in Neonatal Intensive Care Units, morbidity and mortality remain high. Previous studies from our laboratory have demonstrated that extracellular vesicles (EVs) purified from mouse and rat stem cells can protect the intestines from NEC.

View Article and Find Full Text PDF

This study compared side-by-side the impact of donor age on the production of tissue-engineered small intestine (TESI). Each age represents a specific period of life: E18 for fetuses, 5-day-old pups for neonates, 21-day-old rats for weanlings, and 6-week-old rats for adults. The TESI produced was compared macroscopically and microscopically.

View Article and Find Full Text PDF

The analysis of environmental DNA (eDNA) is a powerful, non-destructive technique for detecting rare or hard to find freshwater organisms. In this study, we investigated the effectiveness of environmental DNA analysis as a method for detecting a rare amphibian, the golden tree frog (Phytotriades auratus). These frogs are believed to live exclusively within one species of tank bromeliad, Glomeropitcairnia erectiflora, found on the highest peaks of the island of Trinidad in the West Indies.

View Article and Find Full Text PDF

Efforts to maximize yields of food crops can be undermined by abiotic stress factors, particularly those related to climate change. Here, we use a range of physiological methods to detect the individual and combined effects of heat and drought stress on three contrasting varieties of tomato: Hybrid 61, Moskvich, and Nagcarlang. Seedlings were acclimated under the following treatment regimes: CONTROL (25-36°C; well-watered), DRY (25-36°C; 20% field capacity), HOT (25-42°C; well-watered) and HOT+DRY (25-42°C; 20% field capacity).

View Article and Find Full Text PDF

To study the role of abscisic acid (ABA) and gibberellins (GA) in pre-maturity α-amylase (PMA) formation in developing wheat grain, two glasshouse experiments were conducted under controlled conditions in the highly PMA-susceptible genotype Rialto. The first, determined the relative efficacy of applying hormone solutions by injection into the peduncle compared to direct application to the intact grain. The second, examined the effects of each hormone, applied by either method, at mid-grain development on PMA in mature grains.

View Article and Find Full Text PDF