Dengue virus (DENV) causes the most prevalent arthropod-borne viral disease in humans. Although Aedes mosquitoes transmit DENV when probing for blood in the skin, no information exists on DENV infection and immune response in the dermis, where the blood vessels are found. DENV suppresses the interferon response, replicates, and causes disease in humans but not wild-type mice. Here, we used mice...

marginal zone lymphoma (mzl) accounts for between 5% and 17% of all non-hodgkin lymphomas (nhl). w e reported a rare case of marginal zone lymphoma presenting with bilateral ear erythema and swelling. the case was a 79-year-old man who suffered from progressive bilateral ear erythema and swelling since 2 years ago. physical examination was remarkable for erythmatous, edematous and non-tender au...

To evaluate whether histological findings of skin in sepsis by Pseudomonas aeruginosa could be a predictive factor of progression to death, histological alterations after challenge by one multidrug-resistant isolate were studied in 24 rabbits. Acute pyelonephritis was induced after ligation of the right ureter and injection of 10 8 CFU per kg of body weight into the renal pelvis. Biopsy samples...

A study was conducted to record the histoenzymic changes in the skin of dog infested with different ectoparasites. Infested tissue sections were treated with specific substrates for Succinate (SDH), CytochromeOxidase (CYO), Acid Phosphatase (ACPase) and Alkaline Phosphatase (AKPase) to record the histoenzymic reactivity in the skin of naturally infested dogs with Rhipicephalussanguineus, Ctenoc...

1. Stress-relaxation tests and creep tests were performed on the bodywall dermis of two sea cucumbers, Actinopyga echinites (Jager) and Holothuria leucospilota Brandt. 2. These viscoelastic connective tissues had mechanical properties which agreed well with those of a four-element mechanical model composed of two Maxwell elements connected in parallel. 3. The elastic stiffness of the dermis of ...

BACKGROUND The surgical repair of abdominal wall defects that cannot be closed primarily in contaminated fields is a difficult problem. The use of nonabsorbable synthetic materials usually is contraindicated in this setting because of the risk for colonization and chronic infection of the mesh. In this study we sought to determine the safety and efficacy of implanted human acellular dermal graf...

The chick dermis is known to control the formation of feathers and interfeathery skin in a hexagonal pattern. The evidence that the segregation of two types of fibroblasts involves Delta/Notch signalling is based on three facts. Rings of C-Delta-1-expressing fibroblasts precede and delimit the forming feather primordia. C-Delta-1 is uniformly expressed in the dermis of the scaleless mutant, whi...

shaped hypergranulosis, sawtooth rete ridges, and the presence of colloid bodies at the dermoepidermal junction (Figure 2). The most noticeable aspect from the histological point of view was the intensity of the lymphoid infiltrate, which occupied the whole papillary dermis and reached the upper reticular dermis, obliterating the dermoepidermal junction and also affecting the periadnexal dermis...