Smallpox, caused by variola virus (VARV), is a devastating human disease that affected millions worldwide until the virus was eradicated in the 1970 s. Subsequent cessation of vaccination has resulted in an immunologically naive human population that would be at risk should VARV be used as an agent of bioterrorism. The development of antivirals and improved vaccines to counter this threat would...

BACKGROUND Envenoming by viper snakes constitutes an important public health problem in Brazil and other developing countries. Local hemorrhage is an important symptom of these accidents and is correlated with the action of snake venom metalloproteinases (SVMPs). The degradation of vascular basement membrane has been proposed as a key event for the capillary vessel disruption. However, SVMPs th...

1. The objective of this investigation was to test the influence of mammary cancer tissue extract on the induction of various tumors by urethan. Three strains of female mice, Balb/c, Zb and Db, were used in this experiment. 2. It was found that urethan was a multipotential carcinogen in the induction of (a) lung tumor, ovarian hemorrhagic cyst, and hemorrhagic lesions in various tissue in Balb/...

Sorafenib, a multikinase inhibitor, is the first-line treatment for unresectable progressive hepatocellular carcinoma (HCC) and has been approved by both the United States Food and Drug Administration (FDA) and the EuropeanMedicines Agency (EMEA) [1,2]. Although there are studies reporting its effectiveness, there are also reports about adverse events related to treatment with this drug. Among ...

Background: To evaluate the association between pre/post-procedural high sensitive C-reactive protein (hs-CRP) level and hs-CRP difference, and the risk of major adverse cardiovascular events (MACE) or new diffusion-weighted MRI lesions after carotid angioplasty and stenting (CAS). Methods: In this study, conducted in 2016 in Shiraz (Iran), patients who underwent diagnostic angiography and CAS...

A pyogenic granuloma is a prevalent inflammatory hyperplasia of connective tissue. These lesions develop as reactive tissue response to low-grade local irritation, trauma, and hormonal imbalances. Morphologically, it may present single exophytic nodule or sessile papule, with smooth lobulated surface, on pedunculated base. hemorrhagic range in size from few millimeters several centimetres vary ...

Chikungunya virus (CHIKV) is a reemerging, ordinarily mosquito-transmitted, alphavirus that occasionally produces hemorrhagic manifestations, such as nose bleed and bleeding gums, in human patients. Interferon response factor 3 and 7 deficient (IRF3/7-/-) mice, which are deficient for interferon α/β responses, reliably develop hemorrhagic manifestations after CHIKV infection. Here we show that ...

Splenic cysts are rare lesions. Primary cysts have a cellular lining that can be caused by congenital events or parasitic infection (Echinococcus). Secondary cysts have no cellular lining and may be of hemorrhagic, serous, inflammatory, or degenerative origin. We report a case of pseudocyst treated successfully by splenectomy, and we review the literature.

Annular urticarial lesions in a child must establish a main differential diagnosis with urticaria multiforme, common urticaria, acute hemorrhagic edema of infancy, erythema marginatum, erythema annulare centrifugum, annular erythema in childhood, erythema multiforme, Sweet's syndrome, Schönlein-Henoch purpura, erythematosus lupus, several systemic vasculitis, and serum sickness.

Osler–Weber–Rendu syndrome, also known as Hereditary Hemorrhagic Telangiectasia (HHT), is an autosomal dominant disorder. Telangiectasias and Arterio-Venous Malformations (AVMs) are vascular lesions present in HHT, most commonly causing epistaxis and gastrointestinal bleeding. While epistaxis presents as early as childhood, the gastrointestinal manifestations of HHT develop with increasing age.