A chemically defined medium that supports the growth of both encapsulated and nontypeable Haemophilus influenzae strains in broth to densities that are >/= 10(9) CFU/ml or on agar plates is described. The mean generation time of a panel of clinical isolates was comparable to that in rich, chemically undefined media (brain-heart infusion broth supplemented with heme and beta-NAD).
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http://dx.doi.org/10.1128/JCM.41.9.4408-4410.2003 | DOI Listing |
J Expo Sci Environ Epidemiol
December 2024
Department of Epidemiology, UNC Gillings School of Public Health, Chapel Hill, NC, USA.
Background: Despite evidence from experimental studies linking some petroleum hydrocarbons to markers of immune suppression, limited epidemiologic research exists on this topic.
Objective: The aim of this cross-sectional study was to examine associations of oil spill related chemicals (benzene, toluene, ethylbenzene, xylene, and n-hexane (BTEX-H)) and total hydrocarbons (THC) with immune-related illnesses as indicators of potential immune suppression.
Methods: Subjects comprised 8601 Deepwater Horizon (DWH) oil spill clean-up and response workers who participated in a home visit (1-3 years after the DWH spill) in the Gulf Long-term Follow-up (GuLF) Study.
Sci Rep
December 2024
Faculté des Sciences et Technologies, LEMTA - Université de Lorraine - CNRS UMR 7563, Boîte Postale 70239, Vandoeuvre les Nancy cedex, 54506, France.
The wetting characteristics of fluids play a crucial role in various fields of interface and surface science. Contact angle serves as a fundamental indicator of wetting behavior. However, accurate quantification of wetting phenomena even at the macroscale often poses challenges, particularly due to the hysteresis between receding and advancing contact angles.
View Article and Find Full Text PDFSci Rep
December 2024
Germplasm Bank of Wild Species & Yunnan Key Laboratory for Fungal Diversity and Green Development, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, China.
Continuous cropping obstacle has been becoming the bottleneck for the stable development of morel cultivation. The allelopathic effect of soil allelochemicals may play an instrumental role in the morel soil sickness. In this study, the allelochemicals were identified by gas chromatography-mass spectrometry (GC-MS) combined with in vitro bioassay.
View Article and Find Full Text PDFJ Pharm Biomed Anal
December 2024
Shanghai Key Laboratory of Compound Chinese Medicine, The Ministry of Education (MOE) Key Laboratory for Standardization of Chinese Medicine, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, 1200 Cailun Road, Shanghai 201203, China. Electronic address:
Danning tablet (DNT) is a traditional Chinese medicine (TCM) that contains seven herbal ingredients. It has been clinically used to treat liver and gallbladder diseases in humans. However, the complex composition of TCM prescriptions makes it challenging to fully analyze different polar range compounds.
View Article and Find Full Text PDFArch Toxicol
December 2024
Division of Toxicology, Wageningen University and Research, Stippeneng 4, 6708 WE, Wageningen, The Netherlands.
Systemic bile acid homeostasis plays an important role in human health. In this study, a physiologically based kinetic (PBK) model that includes microbial bile acid deconjugation and intestinal bile acid reuptake via the apical sodium-dependent bile acid transporter (ASBT) was applied to predict the systemic plasma bile acid concentrations in human upon oral treatment with the antibiotic tobramycin. Tobramycin was previously shown to inhibit intestinal deconjugation and reuptake of bile acids and to affect bile acid homeostasis upon oral exposure of rats.
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