As early as 1890, Ewald (1) showed that extracts of pancreas were able to dissolve the elastic fibers of connective tissue. In 1950, Balo and Banga (2) described the properties of a purified enzyme obtained from defatted pancreatic powder, distinct from trypsin and chymotrypsin, and capable of dissolving elastic fibers either in tissues or in test tubes. Lewis, Williams, and Brink (3) have sinc...

Objective(s): Bdellovibrio-and-like organisms (BALOs) are predatory prokaryotes that attack and kill other Gram-negative bacteria for growth and reproduction. This study describes the isolation, identification, biological properties, and bacteriolytic activity of the first Bdellovibrio bacteriovorus with a broad prey range from Iran.Materials and Meth...

of illnesses with varied etiology. They range from clearly infectious diseases such as progressive multifocal leucoencephalopathy to hereditary metabolic disorders such as adrenoleucodystrophy and metachromatic leucodystrophy to a group of disorders of unknown etiology (Table 14.1). Whether multiple sclerosis (MS) and its variants comprise a single disease with a highly varied course or a group...

The connective tissue is the chief place where the pathological rheumatic process takes place. The changes mainly affect its intercellular components. On the basis of this localization of the pathological lesions, rheumatism has been included among the so-called collagen diseases (Klemperer, 1950). The mechanism of development of the pathological processes in the intercellular substance of conn...

The genus Scelio is a cosmopolitan and speciose group of solitary parasitoids of the eggs of short-horned grasshoppers (Orthoptera: Acrididae). A number of these hosts are important pests, including plague locusts of the genus Schistocerca. Species of Scelio are recognized as potentially important biological control agents, but this possibility has yet to be fully realized, in part because the ...

Mercury is ubiquitous in the environment, and in our mouths in the form of "silver" amalgams. Once introduced to the body through food or vapor, mercury is rapidly absorbed and accumulates in several tissues, leading to increased oxidative damage, mitochondrial dysfunction, and cell death. Mercury primarily affects neurological tissue, resulting in numerous neurological symptoms, and also affec...

Historically, in both Australia and the United States, the issue of film censorship has been a source of conflict between the film industry, community groups and the government. This paper compares the methods used to regulate film content in each jurisdiction between 1900 and 1940. It argues that whilst the legal structure and community pressure groups played an important part in the form of c...