Juvenile spring eruption (JSE) is a unique condition that typically affects the helices of the ears of boys and young men. The classical clinical picture of JSE includes the abrupt onset of lesions after spending time outdoors in the early spring. Because of the papulovesicular nature of the rash and the history of sun exposure, JSE is considered a variant of polymorphous light eruption. In addition to the term "juvenile spring eruption," this entity has also been described under other less common terms such as "perniosis juvenilis vernalis aurium" or "spring perniosis," which emphasizes the onset in the spring and the possible pathogenic role of cold weather. We present a case of likely JSE with histopathologic features more consistent with perniosis than polymorphous light eruption and present a review the literature.
Download full-text PDF |
Source |
---|---|
http://dx.doi.org/10.1097/DAD.0000000000000226 | DOI Listing |
Plant Dis
December 2024
Northwest A&F University, College of Plant Protection and State Key Laboratory of Crop Stress Biology for Arid Areas, Yangling, Shaanxi, China;
Cereal cyst nematodes spp., are important pathogens of wheat (Toumi et al. 2018).
View Article and Find Full Text PDFPediatr Surg Int
December 2024
Division of Pediatric Surgery, Stanford University, Stanford, CA, USA.
Purpose: We aim to apply our spring-mediated intestinal lengthening technique to adults and children with short bowel syndrome. We hypothesized that spring-mediated intestinal lengthening would be achieved in adult and juvenile pigs.
Methods: Adult and juvenile pigs underwent insertion of a compressed spring into the jejunum.
N Z Vet J
November 2024
Tāwharau Ora - School of Veterinary Science, Massey University, Palmerston North, New Zealand.
Aims: To determine the major causes of mortality in weka (), and to investigate associations between causes of mortality and captivity status, age, sex, decade of submission, and season.
Methods: Necropsy records were obtained from the Massey University School of Veterinary Science/Wildbase Pathology database (Palmerston North, NZ) for weka submitted between 1 January 1995 and 22 March 2022. Causes of mortality were classified into categories based on aetiology.
Comp Biochem Physiol A Mol Integr Physiol
January 2025
Institut des sciences de la mer de Rimouski, Université du Québec à Rimouski, Rimouski, QC G5L 3A1, Canada. Electronic address:
Winter flounder (Pseudopleuronectes americanus) is a North Atlantic flatfish that inhabits cold-water environments already affected by global warming. Flatfishes are particularly sensitive during their juvenile stage to a phenomenon known as temperature-dependent sex determination (TSD). In this study, we hypothesized that many genes involved in the steroidogenesis pathway are already expressed at the larval stage in winter flounder and that temperature conditions may influence this pathway prior to the juvenile stage, which is usually considered the TSD-sensitive period.
View Article and Find Full Text PDFCold Spring Harb Protoc
October 2024
Department of Genetics, Development, and Cell Biology, Iowa State University, Ames, Iowa 50011, USA
The rolled towel assay (RTA) is a soil-free method to evaluate juvenile phenotypes in crops such as maize and soybean. Here, we provide an updated RTA-based protocol to phenotype maize seedling responses to chemicals of interest. We exemplify the protocol with two synthetic auxin herbicides (2,4-dichlorophenoxyacetic acid and picloram), an auxin precursor (indole-3-butyric acid), and an auxin inhibitor (-1-naphthylphthalamic acid), but the method can be used with other hormones or plant growth regulators that are soluble in growth media.
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!