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Biomedical subjects

H Roux

Publications and source records attributed to H Roux.

At least 55 records · Page 3Linked to original sources
PubMed1990

Fasciitis, perimyositis, myositis, polymyositis, and eosinophilia.

Several groups of cases of fasciitis and myositis with eosinophilia are reported. The common features are inflammation into fascia and/or perimysium, and/or muscle fibers; eosinophilia in blood and/or in muscle biopsy. The following classification of 24 cases is suggested: at one end of the spectrum are fasciitis with eosinophilia: diffuse fasciitis (Shulman syndrome): 10 cases (3 with hematological complications); 2 cases of diffuse fasciitis with muscle atrophy; 3 cases of restricted fasciitis. Relapsing perimyositis with eosinophilia belong to the same spectrum, either diffuse (5 cases) with myalgias, or localized (2 cases). Other cases are focal myositis or multiple myositis, polymyositis with eosinophilia. The relationship among these cases is discussed. There is a continuum among the different groups. The pathophysiology remains unknown.

Adult↗
PubMed1990

Early effects of nimodipine on intracranial and cerebral perfusion pressures in cerebral anoxia after out-of-hospital cardiac arrest.

Some calcium entry blockers seem to improve the neurological survival of anoxic comas. The early monitoring of intracranial pressure shows the frequency of intracranial hypertension. A calcium channel blocker has been shown to increase the cerebral blood flow which can potentially lead to deleterious increases of the intracranial pressure. This study presents 39 out-of-hospital cardiac arrests resuscitated with success. The intracranial pressures were registered by means of an extra dural screw set up as soon as possible. Nineteen patients received an early continuous 5 days nimodipine treatment (0.58 gamma/kg weight/min. after a 12.3 gamma/kg weight bolus). The other 20 patients did not receive any calcium entry blocker. The two groups were similar in terms of age, origin and electrical type of cardiac arrest, duration of cardiac arrest before BLS and before ACLS, principles of the treatment, initial neurological status and biological values. The maximum and mean intracranial pressures of the nimodipine group were always lower than the intracranial pressure of the control group. The cerebral perfusion pressure was never significantly different in both groups. If the nimodipine treatment proves to be efficient on neurological survival, it would be all the more interesting because it seems to limit the intracranial hypertension phenomenon which aggravates the neurological prognosis.

Cerebrovascular Circulation↗
PubMed1990

Multiple sclerosis: cell-mediated immunity to human brain gangliosides.

Cell-mediated immunity (CMI) to myelin components has been implicated in Multiple Sclerosis (MS) pathogenesis: two targets were suggested, Myelin Basic Protein with controversial results and, more recently, gangliosides. In order to investigate their possible involvement, we have performed Leukocyte Migration inhibition (LMI) tests in the presence of human brain gangliosides. Thirty nine MS patients (twenty four being "definite", according to McDonald and Halliday's classification), twenty nine patients with Other Neurological Diseases (OND), thirty six patients with Inflammatory diseases (ID) and forty healthy controls were tested. MS patients were divided into two groups, depending on the clinical stage of the disease. The mean migration inhibition percentage of the MS-attack group was found to be significantly different from the four others (p less than 0.01) (24.4 +/- 16.2 versus 10.9 +/- 8.5 in MS without attack, 4.4 +/- 12.9 in OND, 3.9 +/- 13.9 in ID and 11.1 +/- 12.1 in healthy subjects). LMI to gangliosides is therefore significantly increased during the attack stage in MS. These results support the notion of a Delayed Type Hypersensitivity to these glycolipids during the active stage of the disease.

Adult↗
PubMed1990

Plasma fibronectin: a study of 340 assays.

The authors report the results of 322 assays of plasma fibronectin. The object of this study was to specify its diagnostic contribution. The assays have been effected from February 1987 to October 1988 by the laser nephelometric method in all the hospitalized patients without exclusion. We have defined two populations on clinical diagnostic criteria into 193 control cases and 129 patients suffering from inflammatory rheumatisms or bone neoplasias. The statistical processing has been effected in the Department of Medical Computer Science. The results are as follows: The rate of plasma fibronectin is inclined to increase with age (p = 1 X 10(-4) a little higher among men than among women (p = 0.05). With regard to the other biological markers of inflammation, there was no obvious correlation with the rate of fibrin, the sedimentation rate at the first hour, or the presence of C-reactive protein. This study does not confirm the specificity of this assay in the inflammatory rheumatisms although our two populations are strictly comparable with respect to age and sex, and the clinical and biological parameters (sedimentation rate and fibrin) would allow us to discern the difference, if any, between the two populations. Plasma fibronectin assay has no diagnostic or discriminating value on a large scale.

Aging↗
PubMed1989

[Autochthonous Behçet's disease. Apropos of 73 cases].

A multicenter study of Behçet's disease in France confirms the male predominance (62 p. cent), the mean age of onset in the 4th decade, the frequent muco-cutaneous, ocular, articular manifestations (94 p. cent), the skin hypersensitivity (68 p. cent). The forms with arthralgia predominate; the knees are especially affected; arthritis has a favorable course; the para-articular forms are infrequent and in 4 cases, are associated with ankylosing spondylarthritis. HLA B5 is found in 47 p. cent of the cases. HLA-B12 in 22 p. cent. HLA-B5 is associated with eye involvement in 62 p. cent of the cases, HLA-B12 is associated with skin involvement in 67 p. cent of the cases. The effectiveness of colchicine and, at a lesser degree, of steroids, is confirmed.

Adolescent↗
PubMed1987

Do viruses play an etiologic role in ankylosing spondylitis or psoriatic arthritis?

High venous blood levels of 2-5A, an adenylic acid polymer synthesized in the presence of double-stranded RNA and considered as a viral replication indicator, have been found in blood samples from ankylosing spondylitis and psoriatic arthritis patients, but not from patients with seropositive rheumatoid arthritis or acute chondrocalcinosis. These findings suggest the possibility that ankylosing spondylitis and psoriatic arthritis might be virus-induced diseases.

Adenine Nucleotides↗
PubMed1987

Coexisting rheumatoid arthritis and ankylosing spondylitis.

Since the second publication by some of the present authors in which 10 patients with coexisting rheumatoid arthritis (RA) and ankylosing spondylitis (AS) were described, 7 new cases have been found. For accuracy, all cases of the original study still available were reexamined. Of the total of 17 cases, 13 were male and 4 female. All had positive tests for rheumatoid factor and 6 had subcutaneous nodules. The male predominance and the frequency of nodules are consistent with other publications. In addition, our study demonstrates the strong association of each of these 2 diseases with its genetic marker: the antigen HLA-DR4 was present in 8 of 12 cases tested and the antigen HLA-B27 was present in 16 of the 17 cases. The coexistence of these 2 classical rheumatological entities in the same patient appears to occur by chance and is probably often overlooked.

Aged↗
PubMed1987

[Articular manifestations of Behçet's disease. Apropos of 65 cases].

The authors, in a series of 65 cases of Behçet's disease, notice 53% of rheumatological manifestations which are third in line after aphthosis and ocular disease. In order of decreasing frequency, it concerns arthritis (mono, oligo or poly-arthritis), arthralgias with an almost identical frequency, sacroiliitis, extraarticular involvement. These rheumatological manifestations are readily associated with necrotic pseudo-folliculitis and cutaneous aphthosis.

Adolescent↗
PubMed1986

IgM antiplatelet antibodies in 7 out of 20 rheumatoid arthritis sera. A new antiplatelet antibody ELISA. Reverse correlation with anti-B-lymphocyte antibodies in the same sera.

In a previous work, we had found that anti-B lymphocyte antibodies exist in rheumatoid arthritis. To investigate whether these antibodies were directed against surface immunoglobulins or not we have investigated if RA sera could recognize similar structures on other targets such as platelets (on which immunoglobulins and immune complexes are present) by a new ELISA method. No IgG antiplatelet antibody was found in 20 RA sera. But 7 out of these 20 RA sera had IgM antiplatelet antibodies when tested on platelets from 5 donors. The comparison of the positivities of these sera on B lymphocytes and platelets from the same donors showed a statistically significant reverse (X2 = 20,008, p much less than 0.0001) correlation. The target antigen and the meaning of these IgM antiplatelet antibodies, which seem to be associated with severe RA, is still under investigation.

Antibody Specificity↗
PubMed1986

Isoxicam vs ketoprofen in ankylosing spondylitis.

1 Isoxicam, 200 mg once daily, was compared to ketoprofen, 100 mg three times daily, in 19 patients (16 males, three females) with ankylosing spondylitis in a 30-day, double-blind study conducted in two centres. 2 Improvements from baseline to final assessment were noted after both isoxicam and ketoprofen in most clinical variables, with isoxicam, in general, being more effective than ketoprofen. 3 Isoxicam was significantly superior to ketoprofen in reducing pain and was judged by both patients and physicians to be superior overall to ketoprofen. 4 Of the 13 patients who expressed a preference, 10 preferred isoxicam. 5 Typical NSAID side effects were encountered with both drugs.

Adult↗