Search PubMed⌕ Search

Biomedical subjects

S Tognella

Publications and source records attributed to S Tognella.

At least 37 records · Page 2Linked to original sources
PubMed1994

Reproductive toxicology of the new antitussive moguisteine.

Moguisteine (R,S(+/-)-2-(2-methoxyphenoxy)-methyl-3-ethoxycarbonylacetyl- 1,3-thiazolidine, CAS 119637-67-1), a new oral non narcotic peripherally acting antitussive drug, was examined for effects in the rat on general reproductive performance (at 0, 50, 212, 900 mg/kg/d,) for embryotoxicity (at 0, 25, 75, 225, 900 mg/kg/d) and for peri-postnatal toxicity (at 0, 62.5, 250, 1000 mg/kg/d). Embryotoxicity (at 0, 75, 225, 900 mg/kg/d) was also examined in the New Zealand White rabbit. In all the studies, moguisteine was administered orally as a suspension by gavage. At the tested doses, moguisteine did not interfere with general reproductive performance, either in the F0 or in the F1 generation. The drug did not show any toxic effect on the dams and their fetuses, nor did it have any teratogenic effect in either of the tested species. Finally, moguisteine had no adverse effects, either on parturition or on peri-and postnatal survival and/or development of the offspring.

Abnormalities, Drug-Induced↗
PubMed1983

Effect of conalbumin on phytomitogen stimulation and E-rosette formation of human peripheral lymphocytes in normal subjects.

An immunological in vitro study was carried out on conalbumin, an iron binding protein structurally similar to lactoferrin, which is a well-known bacterial inhibitor in human milk. Conalbumin itself has been proved to have bacteriostatic activity against a broad spectrum of bacteria responsible for gastrointestinal infections. The activity of conalbumin on the in vitro response to PHA, PWM and Con A and on the E-rosette formation ability of peripheral lymphocytes of 10 normal subjects was studied. The results showed that conalbumin did not affect the lymphocytes' E-rosette formation ability and did not induce blastic transformation of lymphocytes. However, conalbumin was able to produce a significant increase in the in vitro response of lymphocytes to PHA and PWM, suggesting an action on both T and B lymphocytes.

Adult↗
PubMed1981

[Effect of conalbumin on stimulation by phytomitogens and on rosette E formation of human peripheral lymphocytes of normal subject].

We carried on an immunological in vitro study on conalbumin, an iron binding protein structurally similar to lactoferrin, a well know bacterial inhibitor of human milk. Conalbumin itself has been proved to have bacteriostatic activity against a broad spectrum of bacteria responsible for gastrointestinal infections. The activity of conalbumin on the in vitro response to PHA, PWM and Con A and on the E-rosette formation ability and does not induce blastic transformation of lymphocytes. However, conalbumin has been able to significantly increase the in vitro response of lymphocytes to PHA and PWM, suggesting an action on both T and B lymphocytes.

Adult↗
PubMed1979

Interference of levamisole with inhibition of E-rosette formation by Hodgkin's disease and systemic lupus erythematosus cytotoxic sera.

A new system has been used to test the influence of levamisole on T-cell function. Evidence has been produced that prior exposure to the drug "protects" normal human peripheral blood lymphocytes from the inhibition that cytotoxic sera from patients with Hodgkin's disease and systemic lupus erythematosus exhibit on their E-rosette-forming capacity. Also, damage of this T-cell function already induced by Hodgkin's sera may be partially corrected.

Cytotoxicity, Immunologic↗
PubMed1976

[Comparison between anti-lymphocyte antibodies in systemic lupus erythematosus and in Hodgkin's disease].

Anti-lymphocyte antibodies of cold-reactive IgM-type in Systemic Lupus Erythematosus (SLE) and IgG-type in Hodgkin's disease (HD) by means of immunofluorescent technique have been demonstrated. The contemporaneous attachment of SLE and HD sera on selected peripheral lymphocytes demonstrate that the target cell is T-lymphocyte and that the two kinds of antibodies coat the same cell. Co-capping experiments have shown that the phenomenon has the same behaviour as regard to SLE and HD antibody, indicating that the antigen is the same. Hypothesis about the meaning of these antibodyies have been made.

Antibody Formation↗
PubMed1976

[Presence of alpha-2-macroglobulin on the membrane of peripheral human blood lymphocytes : a new lymphocyte maker].

The presence of alpha-2-macroglobulin (alpha-2-M) on the surface of peripheral blood lymphocytes from normal human subjects and from patients with chronic lymphatic leukaemia (CLL) and with ataxia-teleangectasia was studied by indirect immunofluorescence technique. Same experiments were done on purified subpopulations of normal blood peripheral lymphocytes (B and T). The percentage of alpha-2-M bearing lymphocytes is 17 +/- 6% as regard to normal subjects (Ig-bearing cells are 14%): in CLL the percentage of alpha-2-M bearing cells generally is significantly lower than that of Ig-bearing cells (IgM-IgD). On selected subpopulations, 90% of alpha-2-M bearing cells are present among non T-cells and only 5% among T-cells (probably due to not absolute purification). Blocking experiments using anti-Ig sera did not affect significantly the percentage of alpha-2-M bearing cells and using anti-alpha-2-M sera did not affect that of Ig-bearing cells. The percentage of E-rosette forming cells is not affected by pretreatment of peripheral lymphocytes with anti-Ig and/or anti-alpha-2-M sera. Hypothesis is set forth that alpha-2-M bearing cells could be a lymphocytes subpopulation made by a subgroup of B-cells and by K-cells, taking part in that immunoregulatory system in which collaborate many serum alpha-globulins and T-suppresor cells.

Antibody Formation↗
PubMed1976

Anti-lymphocyte antibodies in systemic lupus erythematosus and in Hodgkin's disease: a comparison by immunofluorescence.

Anti-lymphocyte antibodies of IgM type (cold reactive) in systemic lupus erythematosus and of IgG type (not cold reactive) in Hodgkin's disease have been demonstrated by immunofluorescence to attach the same target cell (T-lymphocyte.) The same behaviour of both kinds of antibodies in "co-capping" experiments confirm that the antigen on the cell surface is the same. Hypothesis about the meaning of this phenomenon are made.

Antilymphocyte Serum↗