The effects of polyadenylic.polyuridylic acid [poly(A).poly(U)] on in vitro proliferations of thymus and spleen cells from C57BL/6 mice were investigated. Mice were injected intravenously with 30 micrograms of poly(A).poly(U) or placebo. Two days later, thymus, spleen and peritoneal cells from these mice were prepared and cultured in pooled or non-pooled conditions. Cell proliferations were assessed by the technique of incorporation of tritiated thymidine. It has been revealed that the in vitro proliferations of thymus and spleen cells as well as the productions of interleukin-1 by peritoneal adhering cells and interleukin-2 by spleen cells were significantly enhanced in the cultures of cells from poly(A).poly(U)-treated mice. These enhancing effects were observed only in the cultures of pooled cells from mice whose genetic homogeneity is suspected. Furthermore, thymus cells from poly(A).poly(U)-treated mice acted as strong responder cells but not as stimulators in one way mixed cultures. Thus, the enhanced cellular responsiveness may be mediated by the increased production of cytokines and antigen recognitions of thymus-derived cells following activations via the adjuvant effect of poly(A).poly(U).
Animal ; Cell Division/drug effects ; Cells, Cultured ; Female ; Interleukin-1/biosynthesis ; Interleukin-2/biosynthesis ; Male ; Mice ; Mice, Inbred C57BL ; Poly A-U/administration & dosage/*pharmacology ; Spleen/*cytology ; Support, Non-U.S. Gov't ; Thymus Gland/*cytology

Actinic reticuloid as a manifestation of chronic actinic dermatitis (CAD) is a rare dermatosis whose clinical and histologic features resemble other types of pseudolymphomas including mycosis fungoides and Jessner's lymphocytic infiltration, and it is regarded as an eventual stage of various photodermatoses like photosensitive eczema or persistent light reaction or chronic photoallergic contact dermatitis and so on. Phototests in the patients with actinic reticuloid usually reveal hypersensitivity to UVB, UVA, and sometimes to visible light. We present a case of actinic reticuloid in a 65-year-old male, whose skin lesions developed as erythematous lichenified infiltrating plaques on the face at first, and then spread themselves onto the upper trunk later. Histologically those skin lesions showed the aggregation of atypical lymphocytes and photobiologically the results of phototests revealed photosensitivity to UVB and UVA.
Actins* ; Aged ; Dermatitis, Photoallergic ; Eczema ; Humans ; Hypersensitivity ; Light ; Lymphocytes ; Male ; Mycosis Fungoides ; Photosensitivity Disorders ; Pseudolymphoma ; Skin ; Skin Diseases

No abstract available.
Child* ; Humans ; Killer Cells, Natural* ; Nephrosis, Lipoid*

The T cell responses to hepatitis B surface antigen (HBsAg) were analyzed in acute hepatitis patients, chronic active hepatitis (CAH) patients and asymptomatic carriers. Neither proliferative responses nor substantial cytokine production of peripheral blood mononuclear cells (PBMC) in response to HBsAg was detected. For further studies, HBsAg- reactive T cell lines were prepared from PBMC of the hepatitis patients and asymptomatic carriers. No proliferative response of the T cell lines was observed. Interestingly, however, T cell lines obtained from acute hepatitis patients were found to produce IFN-r, but not IL- 4, in response to HBsAg stimulation, whereas T cell lines obtained from CAH patients and carriers were not. Results of this study suggest that HBsAg-reactive T cells producing Thl type cytokines may play an important role in the viral clearance during acute infections, while defects in those T cells may be responsible for the viral persistency.
Cell Line ; Cytokines ; Hepatitis ; Hepatitis B Surface Antigens* ; Hepatitis, Chronic ; Humans ; T-Lymphocytes*

No abstract available.
Asthma* ; Humans ; Prednisolone* ; Theophylline*

No abstract available.
Animals ; Antibody Formation* ; Immunoglobulin E* ; Mice* ; Poly I-C*

The nail has been considered to be the best human model to evaluate the general body state at all ages. The present study was disigned to measure the nail growth rate and to define the correlation of them with other values of nail size. The subjects were 373 males and 812 females whose ages from R months to 79 years. The results were as follows: 1. The linear elongation of the nails were most rapid in the 14 to 15 year-old age group. It decreased steadily as the subjects got older and olr1er. 2. Sex differences in the nail growth rate were not statistically significant. R. Where were no statistically significant differences in the linear growth rate of nails between right and left hands. 4. The middle finger nail grew more quickly than others, while the thumb and little finger nails grew more slowly. 5. Linear growth of nails were not significantly correlated to the thickness and length of nails and the length of lunulae.
Adolescent ; Female ; Fingers ; Hand ; Humans ; Male ; Sex Characteristics ; Thumb

It is interesting from a, clinical point of view that nail changes are often signs of dermatological and systemic diseass and rnay even be their leading sign. There is biological and biochemical evidence that studies of nails can serve to gauge the growth and metabolism not only of integumental appendages, but also of other bodily structures. The present study was performed to establish the standard nail sizes of healthy Koreans at successive ages, in addition to nail length, nail width, nail thickness, lunular length, lunular width and analyze of some of the factors which. might conceivably influence it. The correlation among individual nail sizes has been studied also. The subjects for this study were 373 males and 3I2 females from 8 months to 79 years of age. The results of this study were as follows; considerable individual variation in nail size was found. (countinue..)
Female ; Humans ; Male ; Metabolism

No abstract available.
Hypothyroidism* ; Megacolon* ; Pericardial Effusion* ; Pregnancy*

No abstract available.