The Processing of the Degraded Medical Digital Image's Image Enhancement.

Image's noise, edge and contrast are the important factors that influence image's quality. If a method of image enhancement is solely applied to the degraded medical digital image, image's quality is improved in part, if a combined method of image enhancement is applied to the degraded medical digital image, it can increase the image's quality greatly.

Failure of athymic-nude mice sensitized with Bacillus Calmette-Guérin to produce interferon in response to purified protein derivative.

Unlike their +/+ and nu/+ littermates, homozygous athymic-nude (nu/nu) mice that had been sensitized with Bacillus Calmette-Guérin (BCG) failed to produce interferon (IFN) in response to purified protein derivative (PPD). Likewise, spleen cells derived from BCG-sensitized nu/nu mice failed to produce IFN when exposed to PPD in vitro. These findings suggest that the T-cell subset that responds to specific antigens (i.

E-5-(2-bromovinyl)-2'-deoxyuridine vs. interferon in the systemic treatment of infection with herpes simplex virus of athymic nude mice.

The effects of systemic administration of E-5-(2-bromovinyl)-2'-deoxyuridine (BVDU) and interferon (IFN)--mouse IFN type I (MuIFN-alpha plus -beta), mouse IFN type II (MuIFN-gamma), and polyriboinosinic-polyribocytidylic acid (an IFN inducer)--on the development of herpetic skin lesions and associated mortality were studied in athymic nude (nu/nu) mice inoculated intracutaneously with herpes simplex virus (HSV) type 1 (strain KOS). BVDU was given intraperitoneally or orally at dosages of up to 5 mg per mouse per day; IFN and polyriboinosinic-polyribocytidylic acid were given intraperitoneally at dosages of up to 10(6) units per mouse per day and 100 microgram per mouse per day, respectively. Under conditions in which BVDU effectively suppressed the progression of the disease, IFN and polyriboinosinic-polyribocytidylic acid failed to suppress the disease.