Plant species contribution to bioretention performance under a temperate climate.

Bioretention systems are green infrastructures increasingly used to manage urban stormwater runoff. Plants are an essential component of bioretention, improving water quality and reducing runoff volume and peak flows. However, there is little evidence on how this contribution varies between species, especially in temperate climates with seasonal variations and plant dormancy.

Human herpes virus 8 (Kaposi's sarcoma herpes virus) and malignant lymphoproliferations in France: a molecular study of 250 cases including two AIDS-associated body cavity based lymphomas.

The new human herpes virus 8 (HHV8) was recently detected in cases of body cavity based lymphoma (BCBL), a rare B cell lymphoma, mostly AIDS-associated. We investigated for HHV8 DNA sequences a series of 250 B or T cell lymphoproliferative malignancies, as seen in France, including 126 leukemias and 124 lymphomas (232 non-AIDS-associated and 18 AIDS-associated tumors). HHV8 sequences were detected in only three patients.

CD1 stimulation of human T cell lines induces a rapid increase in the intracellular free Ca2+ concentration and the production of IL-2.

The effect of a battery of CD1 mAb on intracellular free Ca2+ concentration and IL-2 production has been examined on different T cell lines in this study. Both 0249F and NU-T2 two CD1b specific mAb tested, induced a rapid increase in the intracellular Ca2+ concentration on HPBALL T cells whereas only one (L161) among three different CD1c mAb (L161, 10C3, and M241) produced a similar effect. In contrast the addition of four different CD1a mAb directed against two different epitopic groups of this molecule were uneffective in modifying the intracellular Ca2+.

[Stage I and II Hodgkin's disease with enlarged mediastinum in adults. Apropos of 24 cases].

We have reported a retrospective study on 24 cases of supra-diaphragmatic Hodgkin's disease Stage I and II, with massive mediastinal invasion, followed from January 1981 to October 1986 and treated first with chemotherapy and then supra-diaphragmatic mantle type radiotherapy up to a dose of 40 Gy in 20 sessions and over 26 days; inverted irradiation was given to the aorto-lumbar region and the spleen up to a dose of 30 Gy in 15 sessions over 19 days. Supplementary irradiation to the superior mediastinum on average 10 Gy in five sessions over five days was given in two cases and five Gy in three sessions over three days in four cases. After initial chemotherapy there appeared to be a complete remission in 29% (7 out of 24), there was a partial remission in 71% (17 out of 24), of which one gave a 25% response, two a 50% response and 14 gave a response of greater than 80%.

[Half-body irradiation and drug-resistant non-Hodgkin's lymphomas. Apropos of 9 cases].

Nine patients, aged 19 to 57 years (mean: 37 years) with non hodgkin lymphoma (NHL) secondarily resistant to chemotherapy (8 stages CS IV involving the bone marrow and 1 stage III) were studied. Histologic forms according to the Lennert classification were as follow: 1 nodular centrocytic which developed into a diffuse centroblastic, 3 diffuse immunoblastic, 4 diffuse centrocytic-centroblastic, and 1 T cell lymphoblastic. The nine patients were managed by external irradiation of the lower half of the body (LHBI), followed six weeks later by irradiation of the upper half of the body (UHBI).

[Non-Hodgkin lymphomas of the head and neck, stages I and II. Apropos 35 cases].

35 cases of non-Hodgkin malignant lymphomas of head and neck, stages I and II. All were treated in Pitié-Salpêtrière Hospital in Paris, by radiotherapy alone or combination chemotherapy and radiotherapy, with or without surgery. The authors discuss the prognostic and therapeutic aspects.