Les Musiques Afro-Americaines - Colloque de Liege 1984

in Soul Bag (1985), (101), 17-18

Compte rendu du Colloque de Liege 1984 ( Charley Patton)

La biotechnologie : une fenêtre ouverte sur un monde nouveau.

in Bulletin Athéna 3, 4-10. Chambre de Commerce Belgique-Luxembourg-Pays arabes, 5e année (1985), n°1

Transport et sédimentation du pollen par les courants aériens, fluviatiles et marins à Calvi (Corse).

in Pollen et Spores (1985), XXVII(3-4), 349-364

The effect of TRH on F waves recorded from antagonistic muscles in human subjects.

in Annals of Neurology (1985), 18(3), 366-7

The isomerization and fragmentation of the CHO2+ ions: an example of spin-controlled chemistry?

in Advances in Mass Spectrometry (1985), X(B), 1129-1130

The article presents a study of the isomerization and fragmentation of the CHO2+ ions

B16 melanoma cells in bi- or tridimensional cultures

in Archives de Biologie (1985)

Observations au large de Calvi en régime d'été

in Bulletin de la Société Royale des Sciences de Liège (1985), 54(6), 287-300

*Séméplasmes (surréalistes), ou autres

in Temps Mêlés (1985), 150

The beta-lactamase of Enterobacter cloacae P99. Chemical properties, N-terminal sequence and interaction with 6 beta-halogenopenicillanates.

in Biochemical Journal (1985), 228(1), 241-8

The beta-lactamase of Enterobacter cloacae P99 consists of one polypeptide chain of Mr 39000 devoid of disulphide bridges and free thiol groups. It contains an unusually high proportion of tyrosine and ... [more ▼]

The beta-lactamase of Enterobacter cloacae P99 consists of one polypeptide chain of Mr 39000 devoid of disulphide bridges and free thiol groups. It contains an unusually high proportion of tyrosine and tryptophan. The N-terminal sequence exhibits overlaps with the tryptic peptide obtained after labelling the active site with 6 beta-iodopenicillanate. The active-site serine residue is at position 64. The homology with the chromosomal beta-lactamase of Escherichia coli K 12 (ampC gene) is lower within the 25 residues of the N-terminal portion than around the active-site serine residue. The P99 beta-lactamase is inactivated by 6 beta-bromo- and 6 beta-iodo-penicillanate, with a second-order rate constant of 110-140M-1 X s-1 at 30 degrees C and pH 7.0, a value that is much lower than that observed with class-A beta-lactamases. [less ▲]

Isolation of follicular dendritic cells from human tonsils and adenoids. III. Analysis of their Fc receptors.

in Immunology (1985), 54(4), 777-84

Follicular dendritic cells (FDC), isolated from human tonsils or adenoids, were tested for their capacity to retain monomeric, aggregated or antigen-bound human antibodies in the absence of serum. FDC ... [more ▼]

Follicular dendritic cells (FDC), isolated from human tonsils or adenoids, were tested for their capacity to retain monomeric, aggregated or antigen-bound human antibodies in the absence of serum. FDC retain fluorescein-labelled heat-aggregated human immunoglobulins, but not monomeric ones nor fluorescein-labelled F(ab')2 in monomeric or aggregated form. Ultrastructural observations showed that colloidal gold-labelled monomeric, or antigen-bound, antibodies directed against tetanus toxoid are retained by dendrites and membrane infoldings of FDC but are never located in cytoplasmic vesicles. This retention was inhibited by incubating FDC with unlabelled aggregated or antigen-bound antibodies. When gold-labelled anti-tetanus toxoid antibodies were incubated in the presence of protein-A before the contact with FDC, a strong reduction of their retention occurred. This further suggested the presence of Fc receptors on isolated tonsillar FDC. Endocytosis was not observed in isolated FDC, even after prolonged incubation in presence of labelled immune complexes: their Fc receptors are, thus, not related to a phagocytic activity as they are in macrophages. Simultaneous ultrastructural labelling of Fc and C3b receptors with colloidal gold particles of different sizes did not reveal any clear relations between these two receptors on the surface of FDC. [less ▲]

Crystallization and preliminary X-ray data for the exocellular beta-lactamase of Bacillus licheniformis 749/C.

in Journal of Molecular Biology (1985), 181(1), 145-6

The exocellular beta-lactamase from Bacillus licheniformis 749/C has been crystallized from polyethylene glycol solution at pH 5.5. An X-ray examination of the monoclinic crystals shows the space group is ... [more ▼]

The exocellular beta-lactamase from Bacillus licheniformis 749/C has been crystallized from polyethylene glycol solution at pH 5.5. An X-ray examination of the monoclinic crystals shows the space group is P21, with unit cell dimensions a = 66.77 A, b = 93.77 A, c = 43.57 A and beta = 104.5 degrees. The asymmetric unit consists of two molecules of 28,500 Mr each. The crystals are suitable for structure analysis to at least 2 A resolution. [less ▲]

Localisation ultrastructurale d'hormones hypophysaires par reaction immunocytochimique sur coupes fines d'adenomes.

in Comptes Rendus des Séances de la Société de Biologie et de ses Filiales (1985), 179(3), 397-402

Human pituitary adenomas were fixed in glutaraldehyde and embedded in epon. Ultrathin sections were incubated either with anti-hGH, anti-hPRL or anti-hLH. They were incubated with second step goat anti ... [more ▼]

Human pituitary adenomas were fixed in glutaraldehyde and embedded in epon. Ultrathin sections were incubated either with anti-hGH, anti-hPRL or anti-hLH. They were incubated with second step goat anti-rabbit immunoglobulins linked to gold particles. Two PRL secreting adenomas, one GH and PRL secreting adenoma, one ACTH secreting adenoma and two non secreting adenomas were studied. The specificity and the limits of the method were discussed in relation with the results obtained in light microscopy with the PAP method. [less ▲]

Changes in the basal membrane in pre-eclampsia and eclampsia

in Bulletin et Mémoires de l'Académie Royale de Médecine de Belgique (1985), 140(4-5), 208-21

Masking of antigenic sites of fibronectin by glycosaminoglycans in ethanol-fixed embryonic tissue

in Histochemistry (1985), 82(2), 169-74

We studied the interaction between glycosaminoglycans (GAGs) and fibronectin in the basement membrane of the epiblast in the chicken blastoderm using testicular-hyaluronidase digestion of GAGs either on ... [more ▼]

We studied the interaction between glycosaminoglycans (GAGs) and fibronectin in the basement membrane of the epiblast in the chicken blastoderm using testicular-hyaluronidase digestion of GAGs either on fixed tissue sections or in vivo after microinjection of the enzyme preparation prior to immunostaining for fibronectin. In the choice of fixatives, special attention was paid to their preservation of GAGs. The controls included alcian-blue staining of serial sections to test the efficiency of the digestion, and incubations in the presence of protease inhibitors to abolish contaminating proteolytic activity in the commercial hyaluronidase preparations. The results indicate that fixation in solutions which preserve GAGs, i.e. ethanolic solutions or aqueous solutions containing cetylpyridinium chloride, allows the immunocytochemical demonstration of fibronectin in the basement membrane of the epiblast at the level of the endophyllic crescent, but masks this glycoprotein at the epithelial-mesenchymal interface. As shown by both approaches, this masking of immunoreactivity is reversible. Moreover, the in vivo clearance of GAGs before fixation shows that the masking at the epithelial-mesenchymal interface is not an experimental peculiarity due to the use of a particular technique, but is the consequence of an interaction between GAGs and fibronectin in that particular area of the basement membrane that is used by mesoblast cells as a substrate for migration. The observation that fibronectin may be masked by GAGs in ethanol-fixed tissue--a commonly used fixation method--may require the re-evaluation of some negative results mentioned in the literature. [less ▲]

Laminin promotes cerebellar granule cells migration in vitro and is synthesized by cultured astrocytes.

in Developmental Neuroscience (1985), 7(5-6), 278-85

Newborn rat cerebellum microexplants have been used as a model to study neuronal migration. Laminin in a substrate-bound form modifies extensively the migratory behavior of the neurones, an effect which ... [more ▼]

Newborn rat cerebellum microexplants have been used as a model to study neuronal migration. Laminin in a substrate-bound form modifies extensively the migratory behavior of the neurones, an effect which is blocked if antilaminin antibodies are present during the assay. 35S methionine incorporation followed by SDS-PAGE electrophoresis, fluorography and immunoprecipitation with antilaminin antibodies allowed to demonstrate that laminin is synthesized and secreted by cultured newborn rat cerebellum as well as by cultured newborn rat cerebral cortex astrocytes. [less ▲]

Semi-quantitative estimation of serum myoglobin by a rapid latex agglutination method: an emergency screening test for acute myocardial infarction.

in Clinica Chimica Acta (1985), 145(2), 143-50

The present study reports the evaluation of a new latex agglutination test for serum myoglobin (SMb). The time of agglutination of the latex particles coated with antibodies to myoglobin was measured in ... [more ▼]

The present study reports the evaluation of a new latex agglutination test for serum myoglobin (SMb). The time of agglutination of the latex particles coated with antibodies to myoglobin was measured in 172 serum specimens with known concentration of myoglobin quantitated by a radioimmunoassay (RIA), collected from myocardial infarction (MI) patients, subjects suffering from various diseases, and normal controls. Myoglobin levels in the samples were found to decrease exponentially with time of agglutination. Agglutination occurring within 1 min (result coded as + + + +) corresponded to 761 +/- 366 micrograms/l of myoglobin; between 1 and 2 min (+ + +), to 285 +/- 101 micrograms/l; between 2 and 3 min (+ +), to 85 +/- 47 micrograms/l; between 3 and 4 min (+), to 51 +/- 38 micrograms/l; and after more than 4 min (-), to 31 +/- 16 micrograms/l. Blood samples were serially drawn from 24 MI patients with short hospitalization delays; the rapid agglutination which was obtained in the specimens taken upon admission (20 results coded as + + + + and four as + + +) actually corresponded to markedly increased SMb levels. In contrast, serum creatine kinase (CK) activities were still less than 150 U/l in four patients (16.6%); CK-MB was less than 5 U/l in five cases (20.8%). Positive agglutinations for SMb were also obtained 4 and 8 h following admission in all subjects, confirming that the latex test is an early and very sensitive indicator for MI.(ABSTRACT TRUNCATED AT 250 WORDS) [less ▲]

Les ultrasons dans le monde animal: un aperçu

in Acta Belgica. Medica Physica (1985), 8

Ultrasounds are produced and heared by a great variety of animals. Every zoological group considered has its own system of emission/audition. Ultrasounds appear to be used only in order to exchange some ... [more ▼]

Ultrasounds are produced and heared by a great variety of animals. Every zoological group considered has its own system of emission/audition. Ultrasounds appear to be used only in order to exchange some information with other members of a group or to echolocate i.e. to detect possible preys or obstacles with a sonar like system. The best know echolocating mammals are cetaceans and bats. Bats produce two kinds of ultrasonic signals: constant frequency emissions and frequency modulated pulses. Pure tones allow quick detection and identification of the prey, whereas echoes of FM pulses carry valuable informations on the quality of sound reflecting surfaces. Despite these highly sophisticated detection systems, the preys, mainly moths, can sometimes escape their predator. Some of the adopt an irregular flight, others are able deter the bats or to jam their echolocation clicks. [less ▲]

Colloque international "Informatique et agriculture" - Préambule

in Annales de Gembloux (1985), 91

Immunological and structural relatedness of catabolic ornithine carbamoyltransferases and the anabolic enzymes of Enterobacteria.

in Journal of Bacteriology (1985), 161

Retention of immune complexes by Fc receptors on mouse follicular dendritic cells.

in Scandinavian Journal of Immunology (1985), 21(4), 345-53

Follicular dendritic cells (FDC) are located inside lymph follicles and are mainly characterized by their capacity to retain antigens. We investigated this aspect in mice lymph nodes by using bovine serum ... [more ▼]

Follicular dendritic cells (FDC) are located inside lymph follicles and are mainly characterized by their capacity to retain antigens. We investigated this aspect in mice lymph nodes by using bovine serum albumin (BSA) labelled with 5-nm colloidal gold particles and homologous anti-BSA antibodies bound to 20-nm gold particles. Gold-labelled BSA injected alone in non-immunized mice was only rarely found in FDC cytoplasmic interdigitations. Injected in the form of immune complexes, it was retained by FDC. Antigen-free anti-BSA antibodies injected under similar conditions as immune complexes were always found in draining lymph nodes in the same locations as BSA-anti-BSA immune complexes. F(ab')2 from mouse immunoglobulins linked to colloidal gold particles were very rarely found between the FDC extensions, whereas it was intensely phagocytosed by macrophages. Our study permitted precise ultrastructural localization between FDC cytoplasmic extensions or inside macrophages and other cells of the lymph nodes, but it also pointed out that homologous antibodies linked to colloidal gold particles might be retained by FDC in the absence of antigens. These observations, carried out with colloidal gold, were checked by using 125I-labelled anti-BSA antibodies. Complement activation determinations of gold-labelled antibodies or immune complexes showed that antibodies or immune complexes fixed on colloidal gold particles do not activate the complement. This observation enabled us to conclude that Fc receptors play a significant part in the retention of gold-labelled antibodies or immune complexes by FDC of lymph nodes. [less ▲]

Follicle Stimulating Hormone -Secreting Pituitary adenomas

in Journal of Clinical Endocrinology and Metabolism (1985), 61(3), 525-528

This retrospective study concerns 40 patients with an apparently nonsecretory pituitary adenoma who were operated on during an 11-yr period from 1971 to 1981. Among them, 6 men had elevated serum FSH ... [more ▼]

This retrospective study concerns 40 patients with an apparently nonsecretory pituitary adenoma who were operated on during an 11-yr period from 1971 to 1981. Among them, 6 men had elevated serum FSH levels. LH levels were normal in 5 and slightly elevated in 1. Testosterone levels were low in 2 patients and within normal limits in 2 others. Sexual impotency had developed from 6 months to 1 yr before surgery in all patients. Primary hypogonadism could be eliminated on clinical grounds (recent onset of hypogonadism, previous fertility of 5 of the 6, and postoperative improvement). After transsphenoidal adenomectomy, FSH levels returned to normal values in all, and clinical recovery occurred in most patients. Tumor tissue obtained at operation stained positively for the gonadotropins, but was negative for other pituitary hormones in all patients. The most probable explanation for these findings was that the tumors were responsible for the elevated FSH secretion. This explanation is supported by the immunocytochemical identification of gonadotropin-containing cells in the tumors. We conclude that these 6 men frm a series of 40 patients who presented with pituitary tumor but no GH, PRL, or ACTH hypersecretion had primary gonadotropinomas. [less ▲]

Modifications des proteoglycans articulaires durant traitement par l'acide tiaprofénique

in Revue Médicale de Liège (1985), 40(17), 596-599

Erythrocyte Sodium-Potassium activities, plasma natriuretic activity, and peripheral vascular resistances during hemodialysis or hemofiltration

in Journal of Clinical Hypertension (1985), 3

The effect of hemodialysis (acetate buffer) or hemofiltration on blood pressure, heart rate, peripheral vascular resistances, red blood cells ionic fluxes, and plasma natriuretic activity has been studied ... [more ▼]

The effect of hemodialysis (acetate buffer) or hemofiltration on blood pressure, heart rate, peripheral vascular resistances, red blood cells ionic fluxes, and plasma natriuretic activity has been studied in six male patients treated for end-stage renal disease. The hemodynamic response to these two modes of treatment markedly differs. Whereas, peripheral resistances increase and heart rate is not affected during hemofiltration , a decrease in blood pressure, tachycardia, and vasodilation is observed during hemodialysis. However , in both therapeutic approaches, red blood cell ouabain-sensitive sodium-potassium pump activity increases in a similar way, and the plasmatic natriuretic activity decreases, whereas the vascular response to norepinephrine is reduced. All of these changes were strongly correlated to the amount of fluid removed. The natriuretic activity may thus play a role in the regulation of blood pressure and hemodynamic adjustments to fluid removal in chronic renal failure between two dialyses, but its action is not predominent during the dialysis session itself. [less ▲]

Etude de faisabilité d'une structure immergée pour faible profondeur

in Bulletin ATMA (1985)

Usefulness of basement membrane markers in tumoural pathology

in Journal of Pathology (The) (1985), 145(4), 283-96

The distribution of basement membrane (BM) markers, type IV collagen, laminin (LM), heparan sulphate proteoglycan (HSP) and fibronectin (FN) has been studied by indirect immunofluorescence using specific ... [more ▼]

The distribution of basement membrane (BM) markers, type IV collagen, laminin (LM), heparan sulphate proteoglycan (HSP) and fibronectin (FN) has been studied by indirect immunofluorescence using specific antibodies, in tumoural pathology. The disrupted pattern of BM by these markers in severe dysplastic lesions of the breasts, the bronchi and uterine cervix provides evidence for malignancy. In invasive carcinomas, there is generally a loss of these BM components, with FN persisting in the stroma. The loss of these markers in BM is concomitant and superimposable in double staining studies. In embryonic tumours, the presence of BM markers is related to a mesenchymal differentiation of malignant cells with pericellular FN and/or maturation towards organoid structures with BM. In sarcomas, there is a loss of the pericellular BM staining around most transformed muscular and Schwann cells and adipocytes. The persistence of this labelling in some well-differentiated areas can help to diagnose the nature of the sarcoma. The persistence of intercellular filaments of FN corresponds to the mesenchymal and/or sarcomatous nature of undifferentiated anaplastic proliferations. [less ▲]

Patulin Degradation in Saccharomyces cerevisiae : Sensitive Mutants

in Mycotoxin Research (1985), 1

Lactase Insufficiency Revisited

in Journal of Pediatric Gastroenterology and Nutrition (1985), 4

The definition of "insufficient" small bowel lactase activity varies greatly among authors. The present study is aimed at redefining lactase insufficiency by comparing intestinal lactase activity and ... [more ▼]

The definition of "insufficient" small bowel lactase activity varies greatly among authors. The present study is aimed at redefining lactase insufficiency by comparing intestinal lactase activity and results of the lactose breath hydrogen test. Primary "insufficient" lactase activity was considered to be present when a child with a normal small bowel histology showed lactose malabsorption as measured by the lactose breath hydrogen test. The lactase activity of 22 "normal" children ranged from 0.77 to 4.57 U/g wet weight, while five children showed primary lactase insufficiency as defined above. Small bowel lactase activity in the latter patients was < 0.74 U/g wet weight. Sucrase and maltase activities were similar in both groups of patients. We conclude that children with a normal small bowel histology should be considered to have primary lactase insufficiency when small bowel lactase activity is below 0.75 U/g wet weight. [less ▲]

Penicillin-sensitive enzymes in peptidoglycan biosynthesis

in CRC Critical Reviews in Microbiology (1985), 11

Etude préliminaire d'une ligne fluviale de transport de conteneurs et du matériel de transport adapté entre Liège et la Mer du Nord

in Proceeding 26th AIPCN Congress, section 1-3 (1985)

La reconnaissance en Belgique des répudiations unilatérales intervenues au Maroc ou l'ordre public répudié

in Journal des Tribunaux (1985)

Analyse d'un cas d'interaction entre asthme et abandonnisme

in Psychologie Médicale (1985), 17(1), 91-95

Transport des immondices par barges spécialisées

in Bulletin de l’Association Internationale Permanente des Congrès de Navigation [Bulletin de l'AIPCN] (1985)

Quantités de matières transportées en suspension et en solution par l'effluent majeur des karsts belges: la Meuse

in Annales de la Société Géologique de Belgique (1985)

In the Meuse River at Liège, for a drainage basin of 16 400 sq km,the average annual suspended load is 388 000 tons and the load in dissolution 1 092 000 tons.

Entre Narcisse et Pygmalion : la communauté émotionnelle surréaliste

in Mélusine. Cahiers du Centre de recherches sur le surréalisme (1985), VII

Metoprolol v. clonidine in the prophylactic treatment of migraine.

in Cephalalgia : An International Journal of Headache (1985), 5(3), 159-65

In a double-blind, cross-over trial, the migraine prophylactic effect of the beta 1-adrenoceptor antagonist metoprolol was compared with that of clonidine. The dosage of metoprolol was 50 mg b.i.d. and of ... [more ▼]

In a double-blind, cross-over trial, the migraine prophylactic effect of the beta 1-adrenoceptor antagonist metoprolol was compared with that of clonidine. The dosage of metoprolol was 50 mg b.i.d. and of clonidine 50 micrograms b.i.d. Thirty-one patients were included; twenty-three completed the entire study. Six patients withdrew during clonidine treatment, one during metoprolol treatment and one during the wash-out period (placebo). Metoprolol had a significantly better migraine prophylactic effect than clonidine regarding such parameters as the attack frequency, the number of migraine days and the sum of intensity score. Compared to baseline (placebo), metoprolol decreased these parameters, while clonidine did not. Metoprolol, but not clonidine, also reduced the acute consumption of analgesics. No differences were found as regards side effects. [less ▲]

Salmon-calcitonin nasal spray in Paget's disease of bone: preliminary results in five patients

in Calcified Tissue International (1985), 37(6), 577-80

The effectiveness of Synthetic Salmon Calcitonin (SSCT) administered as a nasal spray was assessed via clinical, biological, and radiological variables in 5 Pagetic patients during a 6 months course ... [more ▼]

The effectiveness of Synthetic Salmon Calcitonin (SSCT) administered as a nasal spray was assessed via clinical, biological, and radiological variables in 5 Pagetic patients during a 6 months course therapy, the results show that intranasal administration does not decrease the activity of SSCT in Paget's disease of bone. [less ▲]

Influence of oral contraceptives and pregnancy on constituents of the kallikrein-kininogen system in plasma.

in Clinical Chemistry (1985), 31(9), 1533-6

We measured kininogens of low and high molecular mass along with prokallikrein activity in plasma of women with a normal menstrual cycle. We observed no difference between results for the follicular and ... [more ▼]

We measured kininogens of low and high molecular mass along with prokallikrein activity in plasma of women with a normal menstrual cycle. We observed no difference between results for the follicular and luteal phases. We assayed the same constituents in women who were taking oral contraceptives (combined estroprogestative) and found that activity of prokallikrein and concentrations of low- and high-molecular-mass kininogens were significantly increased. Lastly, we studied the components of the kallikrein-kininogen system during pregnancy. We also observed a marked increase in their concentrations in plasma, despite a decrease in total proteins. Specifically, prokallikrein and kininogens increase continuously with gestational age, reaching their maxima around the eighth month of pregnancy. At that time, more than 50% of observed results fall outside the normal reference interval. Our observations are even more striking when prokallikrein and kininogens are expressed in units per gram of total proteins, to account for the hemodilution. After delivery, the concentrations of prokallikrein and low- and high-molecular-mass kininogens decline promptly, returning to normal within three days. [less ▲]

Complement activation during hemodialysis

in New England Journal of Medicine [=NEJM] (1985), 312(8), 514-515

Les formulations a liberation lente.

in Annales de Gembloux (1985), 91(1),

Experience personnelle de la reconstruction tendineuse en deux temps grace a la prothese de Hunter-Swanson.

in Acta Orthopaedica Belgica (1985), 51(4), 723-38

The Salmonella/mammalian microsome mutagenicity test: comparison of human and rat livers as activating systems.

in Mutation Research : Fundamental & Molecular Mechanisms of Mutagenesis (1985), 156(3), 139-46

The mutagenicity of several test compounds was verified by the Salmonella/microsome mutagenicity test (Ames test), using both human liver and rat liver (untreated or pretreated with Aroclor 1254) S9 under ... [more ▼]

The mutagenicity of several test compounds was verified by the Salmonella/microsome mutagenicity test (Ames test), using both human liver and rat liver (untreated or pretreated with Aroclor 1254) S9 under identical experimental conditions. Aflatoxin B1, 3-methylcholanthrene, and cigarette-smoke condensate were less mutagenic in the presence of human-liver S9 than in the presence of rat-liver S9 (particularly after treatment with Aroclor 1254). The opposite was observed with 2-aminonanthracene and to a lesser degree with 2-aminofluorene; correlation studies indicate that the two compounds were activated by the same or by very similar enzymes, probably cytochrome P-450s. These results clearly indicate that human-liver S9, as an activating system, behaves differently than rat-liver S9; therefore, it may constitute a useful, additional tool for the study of mutagenicity and probably, carcinogenicity in man. [less ▲]

Effect of salt depletion on sodium ion transport from human erythrocytes

in Wiener Klinische Wochenschrift. Supplementum (1985), 63

This study was realized to test De Wardener's hypothesis on the presence of a plasmatic and natriuretic factor in essential hypertension. By an indirect approach consisting of modification of plasma ... [more ▼]

This study was realized to test De Wardener's hypothesis on the presence of a plasmatic and natriuretic factor in essential hypertension. By an indirect approach consisting of modification of plasma volume and sodium pool in chronic renal failure and primary hypertension with, at the same time , measurements of ionic flux variations in human erythrocytes, we provide some arguments to confirm the presence of such a factor in hydrosaline overloaded uraemic patients and in "salt-sensitive" essential hypertensive subjects. [less ▲]

New evidence on beta stationarity and forecast for belgian common stocks

in Journal of Banking & Finance (1985), 9(4), 553-560

Based on a comprehensive sample of 170 securities traded continuously on the Brussels Stock Exchange from December 1966 to December 1983 this paper presents evidence which indicates that the stationarity ... [more ▼]

Based on a comprehensive sample of 170 securities traded continuously on the Brussels Stock Exchange from December 1966 to December 1983 this paper presents evidence which indicates that the stationarity of beta-coefficients is not as strong as reported in previous studies which were based on smaller samples. It is shown, however, that beta forecast can be generally improved using an adjustment method and that the improvement is highest for portfolios of increasing size. [less ▲]

Modélisation de spectres de contraintes et application à la résistance en fatigue

in Revue de la soudure (1985), 2

Histochemical changes of substance P, FRAP, serotonin and succinic dehydrogenase in the spinal cord of rats with adjuvant arthritis.

in Life Sciences (1985), 36(13), 1247-54

Various histochemical changes were found in spinal segments L4-L5 of rats with adjuvant arthritis, predominantly 30 days after inoculation. A slight to marked increase of substance P immunoreactivity ... [more ▼]

Various histochemical changes were found in spinal segments L4-L5 of rats with adjuvant arthritis, predominantly 30 days after inoculation. A slight to marked increase of substance P immunoreactivity occurred in laminae I, II and X. FRAP activity was enhanced in lamina II. Serotonin immunoreactivity was heavier in laminae I, VIII and IX in a few animals. The intensity of the histoenzymological reaction for succinic dehydrogenase increased in certain laminae VIII and X neurons. At day 15 of the disease the increase of substance P and FRAP activities was chiefly restricted to the medial portion of the superficial dorsal horn. There was a significant positive correlation between the scratching behaviour of arthritic rats and the substance P immunoreactivity in laminae X and I. If one accepts that scratching is pain-related, the data are consistent with a possible role of substance P in the chronic pain associated with adjuvant arthritis. They leave undetermined the significance of the other histochemical changes. [less ▲]

Re-evaluation of the site of transcription in Ehrlich tumour cell nucleoli.

in Biology of the Cell (1985), 54(1), 57-64

Recent electron microscopic immunolocalization studies (Scheer and Rose, 1984) indicated that RNA polymerase I is located in, and probably confined to, the fibrillar centres of the nucleoli. This ... [more ▼]

Recent electron microscopic immunolocalization studies (Scheer and Rose, 1984) indicated that RNA polymerase I is located in, and probably confined to, the fibrillar centres of the nucleoli. This conclusion appears to be in contradiction to previous autoradiographic studies reporting that transcription of rRNA genes takes place in the dense fibrillar component. Despite the fact that rRNA transcription occurs in the dense fibrillar component of Ehrlich tumour cell nucleoli, we show in the present paper that dense fibrillar component containing rapidly labelled RNA can be visualized not only around but also inside the fibrillar centres. [less ▲]

A propos d'un séminome médiastinal.

in Revue Médicale de Liège (1985), 40(11), 474-9

Cloning of the nitrogen permease regulator gene NPR1 of Saccharomyces cerevisiae.

in Archives Internationales de Physiologie et de Biochimie (1985), 93

Treatment of active rheumatoid arthritis with slow intravenous injections of thymopentin

in Lancet (1985), 13(1), 832-836

41 patients with active rheumatoid arthritis entered a placebo-controlled double-blind randomised study in which 21 received slow intravenous injections (given in fractions over 10 min) of thymopentin ... [more ▼]

41 patients with active rheumatoid arthritis entered a placebo-controlled double-blind randomised study in which 21 received slow intravenous injections (given in fractions over 10 min) of thymopentin (TP·5) 50 mg 3 times a week for 3 consecutive weeks and 20 received placebo in the same way. After 3 weeks of treatment the TP-5 group showed improvement (p<O' 05 or p<O: 01) in all but one of the clinical variables tested. There was improvement in the number of joints painful at rest, the number of joints painful on motion, scores for tenderness on pressure and swollen joints, severity of pain on awakening and morning stiffness, and right-hand grip strength; left hand grip strength remained unchanged. In the placebo group, only morning stiffness improved significantly. [less ▲]

Contribution de la chimie clinique au diagnostic et au pronostic de l'infarctus du myocarde.

in Bulletin de l'Académie Nationale de Médecine (1985), 169(7), 1097-107