The diagnosis of Shiitake flagellate dermatitis is often overlooked due to the rarity of the condition and the commonality of shiitake mushroom consumption. As the popularity of shiitake mushroom rises and is further incorporated into Western diets, there will be a greater chance of coming across shiitake flagellate dermatitis. In this report, we present a middle-aged female patient who developed shiitake flagellate dermatitis following the consumption of shiitake mushrooms. The physical examination showed characteristic erythematous linear papules in a flagellate like pattern across her neck, abdomen, and thighs. Biopsies demonstrated perivascular, lymphocytic infiltrates with scarce eosinophils. Awareness and familiarity to this condition may aid in addressing patient’s worries and preventing unnecessary procedures or treatments which may exacerbate symptoms.

Emergent macrophytes play critical roles in water treatment processes of free-water surface constructed treatment wetlands. Management strategies for plant biomass affect wetland function and mosquito populations. Sinking of harvested macrophyte biomass is thought to provide organic carbon that enhances denitrifying bacteria important for nutrient removal while concomitantly reducing harborage for mosquitoes. The effects of sinking versus floating dried plant biomass (California bulrush [Schoenoplectus californicus]) on immature mosquito abundance and water quality (nutrient levels, oxygen demand, and physicochemical variables) were examined in mesocosms (28-m2 ponds or 1.4-m2 wading pools) under different flow regimes in 4 studies. The numbers of mosquito larvae in earthen ponds with floating vegetation were greater than in ponds with sunken vegetation on most dates but did not differ significantly between the 2 vegetation treatments in experiments using wading pools. Differences of the abundance of Anopheles larvae between the 2 vegetation management treatments were larger than for Culex larvae when naturally occurring larval mosquito predators were present. At high turnover rates (>2 pond volumes/day), water quality did not differ significantly between the vegetation management treatments and the water supply. At low turnover rates (approximately 2–6% of water volume/day), water quality differed significantly between the 2 vegetation management treatments and the water supply. Sinking vegetation can enhance the effectiveness of mosquito control but, depending on water management practices, may raise the concentrations of water quality constituents in discharges that are regulated under the Clean Water Act.

Significance: Aquaporins and ion channels establish and regulate gradients of calcium, sodium, potassium, chloride, water, and protons in the epidermis. These elements have been found to play significant roles in skin biology and wound healing. In this study, we review our understanding of these channels and ion gradients, with a special emphasis on their role in acute wound healing. Recent Advances: Specifically, we assess the temporal and spatial arrangements of ions and their respective channels in the intact skin and during wound and healing to provide a novel perspective of the role of ionic gradients through the various stages of wound healing. Critical Issues: The roles of gradients of ions and channels in wound healing are currently not well understood. A collective analysis of their traits and arrangements in the skin during wound healing may provide a new perspective and understanding of the functionality of gradients of ions and channels in skin biology and wound healing. Future Directions: It is important to elucidate how the gradients of ions and ion channels regulate and facilitate wound healing. A better understanding of the ionic environments may identify novel therapeutic targets and improved strategies to promote wound healing and possibly treat other cutaneous diseases.

Limonene is a fragrant terpene commonly found in household and cosmetic products due to its fresh aroma. When exposed to air, limonene autoxidizes to form limonene hydroperoxide, a potent allergen that can cause allergic contact dermatitis. Recently, as the popularity and availability of limonene increased, it has been incorporated into novel products such as flavoring agents for electronic cigarettes or vapes. With the rising acceptance and popularity of marijuana, this usage has extended to cannabis vaping products. Here, we report an unusual presentation of an allergic contact dermatitis reaction to limonene hydroperoxide stemming from cannabis vaping products.

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