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Gastric Accommodation Testing Using Hybrid Nuclear Imaging Volumetry and Combined High-Resolution Manometry-Nutrient Drink Test: A Pilot Study in Healthy Individuals.
Neurogastroenterol Motil
January 2025
Department of Nuclear Medicine, Radiotherapy & Oncology, School of Medical Sciences, Universiti Sains Malaysia Health Campus, Kota Bharu, Kelantan, Malaysia.
Background: Gastric accommodation (GA) testing is gaining clinical recognition as novel and minimally invasive modalities emerge. We investigated the feasibility of hybrid nuclear imaging volumetry (SPECT/CT) and combined high-resolution manometry-nutrient drink test (HRM-NDT) to assess GA.
Methods: In this non-randomized pilot study, [Tc]NaTcO gastric SPECT/CT (250 mL protocol) and proximal gastric HRM-NDT (~60 mL/min protocol) were performed separately within 30 days using Ensure Gold test meal (1.
Bioaccumulation and toxicokinetics of arsenite (As III) in the aquatic bioindicator Pomacea canaliculata using radiotracer analysis.
Aquat Toxicol
January 2025
IHEM Instituto de Histología y Embriología de Mendoza CONICET, Universidad Nacional de Cuyo, Mendoza, Argentina; Universidad Nacional de Cuyo, Facultad de Ciencias Médicas, Instituto de Fisiología, Mendoza, Argentina; Universidad Nacional de Cuyo, Facultad de Ciencias Exactas y Naturales, Mendoza, Argentina. Electronic address:
This study examines the kinetics of absorption, distribution and accumulation of arsenite (As III) in the freshwater gastropod Pomacea canaliculata using a short-lived tracer (As III). The toxicokinetic model indicate that the gills play a crucial role in the As III uptake, with uptake rates significantly exceeding those of release back into the aquatic environment. The movement of As III from the gills to the hemolymph has low exchange rate.
View Article and Find Full Text PDFDiet and trophic structure of fishes in the Barents Sea: between empty and full stomachs - large individual variability follows a common pattern.
J Fish Biol
January 2025
Polar branch of the Russian Federal Research Institute of Fisheries and Oceanography ("PINRO" named after N.M. Knipovich), Murmansk, Russia.
More than 27,000 stomachs from 70 species of fish were collected from the Barents Sea in 2015. Quantitative stomach content expressed relative to the body weight of the predator fish (g g as %) varied by four to five orders of magnitude for six species with the largest sample size (Atlantic cod Gadus morhua, haddock Melanogrammus aeglefinus, Greenland halibut Reinhardtius hippoglossoides, long rough dab Hippoglossoides platessoides, polar cod Boreogadus saida, and Atlantic capelin Mallotus villosus). The quantitative stomach contents of individual fish followed a common and strict statistical relationship for predator species or groups of species (by families), and for prey categories across predator species.
View Article and Find Full Text PDFMorpho-physiological digestive features of genetically closely related sympatric lacustrine whitefish forms with different feeding habits.
Fish Physiol Biochem
January 2025
Institute of Agrifood Research and Technology (IRTA), Centre de La Ràpita, Crta. Poble Nou del Delta Km 5.5, 43540, la Ràpita, Spain.
The effect of different feeding habits on gut morphology and digestive function has been intensively studied during the last decades but sympatric closely related fishes are relatively rare objects of such studies. In the present study, we have identified both morphological and physiological changes in the digestive system of a sympatric pair of whitefish represented by "normal" Coregonus lavaretus pidschian (benthivorous) and "dwarf" C. l.
View Article and Find Full Text PDFMinimum resection length to ensure a pathologically negative distal margin and a larger remnant stomach for esophagogastric junction cancer.
Gastric Cancer
January 2025
Department of Gastroenterological Surgery, Cancer Institute Hospital, Japanese Foundation for Cancer Research, Tokyo, Japan.
Background: Ensuring a pathologically negative distal margin (DM) and preserving a larger remnant stomach is important for proximal gastrectomy (PG) in patients with esophagogastric junction (EGJ) cancer. However, the minimum DM length for ensuring negative margins has not been identified.
Methods: We enrolled patients undergoing PG or total gastrectomy for EGJ cancer.
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