Rapport från en studieresa till Portugal 26/11-1/12 1991

Föreliggande rapport innehåller minnesanteckningar från en studieresa till Portugal 25/11- 2/121991. Syftet var framförallt att diskutera CPC-teknologi för solvärmeändamål med Manuel Collares-Pereira, CCE, Lissabon, inför ett fortsatt arbete med att utveckla CPC-teknologi i Sverige. Även andra institut och anläggningar besöktes och beskrivs i rapporten.

Estudo da expressão imuno-histoquímica das MMPs -2, -7, -9 e -26 e TIMPs -1 e -2 em adenomas pleomórficos e carcinomas adenóides císticos de glândulas salivares menores

The balance between the expression of matrix metalloproteinases (MMPs) and their tissue inhibitors (TIMPs) has been related to various physiological and pathological processes, including salivary gland morphogenesis and tumor invasion and metastasis processes. Pleomorphic adenoma (PA) and adenoid cystic carcinoma (ACC) respectively represent benign and malignant neoplasias of salivary glands. Although they share the same cell origin, they present distinct biological behavior. The aim of this study was to compare the immunohistochemical expression of MMPs -2, -7, -9 and -26, and of TIMPs -1 and -2, in cases of PA and ACC of minor salivary glands. Twenty cases of PA and twenty cases of ACC were assessed according to the presence, intensity and location of MMPs and TIMPs in the tumor parenchyma. Most of the PAs and ACCs presented a high expression of MMP -2, -7, -9 and -26 and of TIMP -1 and -2, predominantly located in tumor cells. There was no significant difference in the expression of MMPs -2 (p=0.359), -7 (p=0.081) and -26 (p=0.553), as well as of TIMPs -1 (p=0.657) and -2 (p=0.248), between the parenchyma of PAs and ACCs. However, MMP-9 showed a significant difference of expression between the two tumors, with the ACC showing more intense marking for this gelatinase (p=0.041). The strong expression of MMP-9 observed in the parenchyma suggests that this gelatinase may play an important role in the biological behavior of these tumors. On the other hand, although there was no significant difference between the marking of MMP -2, 7 and 26 in the studied tumors, the data, when analyzed as a whole, suggest that these proteases may take part in the process of tissue remodeling in both tumors, but do not present a direct relation with the pattern of aggressiveness of ACC. Nonetheless, matrilisins may indirectly influence the behavior of this tumor due to their capacity of activating MMP-9, strongly expressed in the parenchyma of ACC

Programa de actividades sobre política comercial 26 (sc.1) Resolución aprobada el 20 de diciembre de 1967

Incluye Bibliografía.-- Disponible elctrónicamente

Avaliação do pH, da solubilidade e da infiltração marginal em retrobturações com o Sealer 26 puro ou acrescido de iodofórmio

Sealer 26® cement contains bisphenol epoxy resin associated with calcium hydroxide, presenting smaller radiopacity than other endodontic cements. Aiming to improve this property, iodoform has been added in its composition. However, this addition's possible changes in physical and chemical properties still need to be studied. OBJECTIVE: To evaluate the apical sealing ability, solubility, and pH of Sealer 26® alone or with iodoform, at several proportions. MATERIAL AND METHODS: Three experimental mixtures of Sealer 26®, alone or with iodoform, were prepared and subjected to solubility test. Additionally, these combinations were inserted into polyethylene tubes and immersed in distilled water, and, their pH was evaluated after 24-h and 7-day periods. Subsequently, forty roots of extracted lower incisors subdivided into four groups of 10 specimens each, were retrograde filled with one of the previously described mixtures and gutta-percha points. The roots were immersed in Rhodamine B, under vacuum, for 72 hours. After this period, the specimens were longitudinally sectioned, root fragments photographed, these images scanned, and apical infiltration measured by Image tool software. The obtained data were subjected to statistical analysis, at a significance level of 5%. RESULTS: Marginal leakage and solubility tests did not show any difference among the experimental groups (p > 0.05). pH analysis was only statistically different at 24-h period and between Sealer 26® alone and 1.1g iodoform group (p < 0.05). CONCLUSION: The presence of iodoform in Sealer 26®, at the used proportions, did not alter the solubility, apical marginal leakage and pH properties of the original cement.

Na 1 Nachlass Max Horkheimer, 55 - Korrespondenzen u.a. mit Julien Wavrinek und Walter Benjamin (p. I 26, 1-130)

2 Briefe zwischen Marga Wadsack und Max Horkheimer, 24.08.1937, 29.08.1937; 1 Brief von Gloria H. Wagner an Max Horkheimer, 27.12.1948; 1 Brief von Herta Wagner an Leo Löwenthal, 05.06.1936; 3 Brief und 1 Beilage zwischen Herta Wagner, 12.03.1936, 1936; 8 Brief zwischen Katja Walch-Lux und Max Horkheimer, 1934-1938; 2 Brief zwischen K. Walcher und Max Horkheimer, 07.08.1936, 04.09.1936 sowie Bemerkungen zum Brief von Max Horkheimer; 2 Briefe zwischen Morris Waldman und Max Horkheimer, 17.04.1940, 11.05.1940; 6 Briefe zwischen Sidney Wallach und Max Horkheimer, 1940; 2 Briefe von Max Horkheimer an Waldman; 2 Briefe von Max Horkheimer an Landau; 1 Brief Max Horkheimer an Warburg; 1 Brief von Hans Wallenberg an Leo Löwenthal, 06.05.1940; 1 Brief von Willard W. Waller an Franz Neumann, 28.04.1941; 2 Briefe und 1 Beilage zwischen Hans Waloschek und Max Horkheimer, 04.08.1938, 31.08.1938; 4 Briefe und 2 Beilagen zwischen Emil J. Walter und Max Horkheimer, 1937, 1938; 5 Briefe und 1 Beilage zwischen Hilde Walter und Max Horkheimer, 1937, 1945; 1 Brief von Rose Walter an Max Horkheimer, 16.11.1938; 2 Briefe zwischen Yu-Chuan Wang und Max Horkheimer, 12.10.1936, 09.12.1936; 1 Brief von Rike Wankmüller-Freyh an Max Horkheimer, 06.07.1949; 1 Brief von Ilse Bach an Heinz Wartenberg, 11.11.1940; 1 Brief von Heinz Wartenberg an Richard Bach, 07.02.1941; 1 Brief von Max Horkheimer an Heinz Wartenberg, 11.03.1941; 1 Brief von Richard Bach an Max Horkheimer; 1 Brief von Franz und Hilde Wasem an Max Horkheimer, 16.02.1949; 5 Briefe zwischen Goodwin Watson und Franz Neumann, 1941; 11 Briefe und Notizen zwischen Julien Wavrinek und Max Horkheimer, 1938-1940; 1 Brief von Max Horkheimer an M. Bruhat; 2 Briefe von Max Horkheimer an Walter Benjamin, 03.05.1940;