A comparison was made of water-soluble root exudates and extracts of Sorghum vulgare Pers. grown under two levels of P nutrition. An increase in P nutrition significantly decreased the concentration of carbohydrates, carboxylic acids, and amino acids in exudates, and decreased the concentration of carboxylic acids in extracts. Higher P did not affect the relative proportions of specific carboxy...

BACKGROUND The management strategy to be adopted in pleural effusion depends on whether an effusion is a transudate or exudate. OBJECTIVE To evaluate the usefulness of pleural fluid cholesterol and/or total protein measurements for differentiating between exudates and transudates, and to compare it with Light's criteria. METHODS In this prospective study 60 patients with pleural effusion we...

Three mosquito species, Culex tarsalis Coquillett, Culex quinquefasciatus Say and Aedes aegypti L. (Diptera: Culicidae), were examined in laboratory binary choice experiments to investigate whether fish exudates from the mosquitofish, Gambusia affinis (Baird & Girard) (Cyprinodontiformes: Poecilliidae), deter oviposition and whether the responses of these mosquito species to fish exudates in ov...

The transport of cefmenoxime,a cephalosporin antibiotic,into three kinds of exudates (exudate from excoriated skin,exudate from burn wounds,and burn blister fluid)from blood was studied on 37 burn patients after they were given an intravenous bolus of 50mg cefmenoxime per kg body weight.Concentrations of cefmenoxime in serum and in the above exudates or fluid were determined by bioassay.Concent...

The objective of the study was to compare the serum-effusion albumin gradient (serum albumin level minus pleural effusion albumin level) to Light's traditional criteria (pleural fluid/serum total protein ratio greater than 0.5, pleural fluid/serum LDH ratio greater than 0.6, and pleural fluid LDH greater than 200 U/L) for identifying exudative pleural effusions. The design included prospective ...

Phytoplankton exudates play an important role in pelagic ecology and biogeochemical cycles of elements. Exuded compounds fuel the microbial food web and often encompass bioactive secondary metabolites like sex pheromones, allelochemicals, antibiotics, or feeding attractants that mediate biological interactions. Despite this importance, little is known about the bioactive compounds present in ph...

OBJECTIVE Pleural effusion is common problem, but the rapid and reliable diagnosis for specific pathogenic effusions are lacking. This study aimed to identify the diagnosis based on clinical variables to differentiate pleural tuberculous exudates from other pleural effusions. We also investigated the role of renin-angiotensin system (RAS) and matrix metalloproteinase (MMPs) in the pathogenesis ...

We hypothesized that plant exudates could either gel or disperse soil depending on their chemical characteristics. Barley (Hordeum vulgare L. cv. Optic) and maize (Zea mays L. cv. Freya) root exudates were collected using an aerated hydroponic method and compared with chia (Salvia hispanica L.) seed exudate, a commonly used root exudate analogue. Sandy loam soil was passed through a 500-μm mesh...

Root exudates are carriers for the transfer of material, energy and information between plant roots soils. Plants encountering environmental stresses such as heavy metal pollution adapt to environment by producing secreting root exudates. In this study, laboratory soil culture experiment pot with Sedum plumbizincicola were used study effects single combined application three exudates, citric ac...

UNLABELLED The purpose of the study was to evaluate predictive value of vascular endothelial growth factor (VEGF) in the differential diagnosis of pleural effusion. MATERIAL AND METHODS By Light's criteria in 29 cases exudates and 10 transudates was recognized. We investigated 39 patients with pleural effusion (congestive heart failure--10, parapneumonic--11, tuberculous--6, malignant--12, tr...