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Biomedical subjects

P Joly

Publications and source records attributed to P Joly.

At least 145 records · Page 8Linked to original sources

[Contact vasculitis caused by topical agents with non-steroidal anti-inflammatory agents or analgesics].

INTRODUCTION: Topical non steroidal antiinflammatory drugs (NSAID) are recently used in France. Seven cases of contact vasculitis due to topical NSAID are reported. PATIENTS AND METHODS: The clinical and histological features and follow-up data of seven patients with contact vasculitis due to topical NSAID were retrospectively reviewed. RESULTS: The mean age of the seven patients (four women, three men) was 39 years. The topical NSAID used were: ketoprofene in four cases, mephenesine in one case and phenylbutazone in two cases. Cutaneous lesions occurred after a mean time of four days. Histological examination of a skin biopsy specimen showed a leucocytoclastic vasculitis in two cases, a lymphocytic vasculitis in two cases and a mixed vasculitis in three cases. Previous sensibilization to the drug was noted in five cases. Cutaneous patch tests with the drugs were positive in all cases. CONCLUSION: The risk of systemic reaction after oral ingestion of the culprit drug may be considered in these patients.

Administration, Topical↗

[Coronary involvement in systemic lupus erythematosus].

BACKGROUND: Coronary artery disease is an uncommon event in lupus erythematosus. The mechanisms responsible for coronary occlusion are probably complex and intermixed. We report three patients with lupus erythematosus and antiphospholipid antibodies who had coronary artery disease diagnosed with coronary angiogram. OBSERVATION: Coronary artery disease occurred in three young patients aged from 21 to 35 years 3 to 11 years after the onset of lupus. They all had antiphospholipid antibodies. They had been treated with corticosteroids for 6 to 36 months. Two of them were smokers. Angiograms showed coronary occlusion two patients while the third one had probable myocardial microvasculopathy. The lupus was quiescent in all cases when coronary artery disease occurred. DISCUSSION: Antiphospholipid antibodies associated with smoking may be involved in the pathogenesis of coronary artery disease in these 3 patients.

Adrenal Cortex Hormones↗

Preliminary experience with low-dose methotrexate in fibroblastic rheumatism.

Fibroblastic rheumatism (FR) is a rare disease characterized by joint manifestations without joint destruction, and associated with cutaneous nodules and sclerodactyly. The diagnosis is usually based on histologic examination of a skin nodule or synovium specimen. In the 11 previously reported cases, corticosteroid treatment, which has been widely used, was shown to have an unpredictable effect on the evolution of FR. We report a case of FR that was treated with methotrexate for 5 years, which led to complete recovery. This drug may be considered an effective treatment for FR. Further cases are needed to confirm this preliminary experience.

Biopsy↗

Binding of autoantibodies is not restricted to desmosomes in pemphigus vulgaris: comparison of 14 cases of pemphigus vulgaris and 10 cases of pemphigus foliaceus studied by western immunoblot and immunoelectron microscopy.

Pemphigus vulgaris (PV) and pemphigus foliaceus (PF) are autoimmune blistering diseases characterized by a loss of cell-cell adhesion and by autoantibodies directed against epidermal cadherins. PF antigen has been established as desmoglein I which is located strictly on the desmosome, whereas the precise ultrastructural localization of PV antigen remains unclear and controversial to date. To further investigate this question, we compared the location of immune deposits in 14 patients with PV and 10 patients with PF by both direct and indirect immunoelectron microscopy (IEM). Inclusion criteria were based upon clinical features, histological level of cleavage and characterization of circulating antibodies by Western blot on epithelial bovine tongue extracts. IEM was performed on unfixed 0.7-mm slices of skin for the direct technique or on normal skin for the indirect technique using peroxidase labelling. In PF, by both direct and indirect IEM, immune deposits were located on the extracellular part of desmosomes (desmoglea) in all the samples studied. In PV, by both direct and indirect IEM, deposits were situated on the desmoglea and along large portions of the keratinocyte membrane without desmosomal structures in 15 of the 18 samples studied and only on the desmoglea in 3 samples. These results suggest that, in contrast to PF, the target antigen in PV is not always restricted to desmosomes. As various types of adherens junctions have been reported to mediate cell adhesion in the epidermis, the PV antigen could be a component of desmosomes and of other focal adhesions.

Adult↗

Drugs associated with bullous pemphigoid. A case-control study.

UNLABELLED: Bullous pemphigoid is the most frequent autoimmune blistering disease. It occurs in the elderly. The cause of this disease is unknown, but cases of bullous pemphigoid have been occasionally attributed to drug therapy. We conducted a multicenter prospective case-control study looking at the drugs used on a long-term basis before the onset of the disease in 116 incident cases of bullous pemphigoid and 216 control patients with malignant or benign skin tumors. RESULTS: Case patients and control patients received many drugs on a long-term basis (mean +/-SD, 4.4+/-3.2 and 4.4+/-2.7 years respectively). Two classes of drugs, neuroleptics and diuretics, were used more frequently by case patients than control patients. Neuroleptics were used by 15.5% of case patients and 8.3% of control patients (adjusted odds ratios; 1.9; 95% confidence interval, 0.95 to 3.8). Diuretics were used by 36.2% of case patients and 24.5% of control patients (adjusted odds ratios, 1.8; 95% confidence interval, 1.1 to 2.9). Among neuroleptics, no specific drug emerged. The association with diuretics was only linked to aldosterone antagonists, which were taken by 12.9% of case patients and 4.6% of control patients (adjusted odds ratios, 3.1; 95% confidence interval, 1.4 to 7.1). CONCLUSIONS: These results suggest that some drug therapies may be a risk factor for bullous pemphigoid. The cause of this association should be further investigated.

Aged↗

[Responsibilities and generic drugs].

The existence of generics is essentially due to the competition between pharmaceutical specialties by the prices at the end of patent protection. It could be useful in the countries where the prices are very high. In France, the consumption of drugs is high in volume and the average of prices of pharmaceuticals is low. So the generics is not able to really solve the problem of pharmaceuticals' consumption. Moreover one must be vigilant from healthcare point of view for the quality of production. The consequences at the level of pharmaceutical researches could be significant. At last, the eventual right substitution can threaten the freedom of prescription.

Cost Control↗

[Sezary syndrome treated by cytapheresis. Short and long-term results].

INTRODUCTION: Sezary syndrome is usually resistant to most treatments. The aim of this work was to evaluate short and long-term results of cytapheresis in patients with Sezary syndrome. PATIENTS AND METHODS: Twenty-two patients with Sezary syndrome were included in the study (13 men, 9 women, man age 58 +/- 35.4 years). The mean duration of Sezary syndrome before cytapheresis was 6.5 +/- 2 months. Extra-cutaneous involvement was observed in 16 of the patients. Each patient underwent 33 +/- 63 cytapheresis sessions (total number = 685). Complete remission in "responders" was defined as the absence of clinical signs and Sezary cells < 1,000/mm3. In "non responders" partial remission was defined as incomplete regression of clinical signs and Sezary cells > 1,000/mm3 and failure as lack of improvement or worsened clinical situation. RESULTS: Complete remission was obtain in 10/22 patients (45.5 p. 100), partial remission in 4/22 (18 p. 100) and failure in 8/22 (36.5 p. 100). There was no significant difference between responders and non-responders for age, duration of the Sezary syndrome before cytapheresis, the number of sessions, extracutaneous involvement, or another associated treatment. In the responders, mean survival was 90 +/- 42 months. Two patients were alive at 5 years and 1 at 10 years. In the non responders, mean survival was 8 +/- 1.4 months and median survival was 11 months. CONCLUSION: There was no significant evidence suggesting a difference between responders and non-responders. Nevertheless, mean survival was longer in patients who had achieved complete remission. Cytapheresis is thus justified for the treatment of patients with Sezary syndrome.

Adult↗

[Paraneoplastic pemphigus in chronic lymphocytic leukemia].

INTRODUCTION: Paraneoplastic pemphigus is an autoimmune bullous disease described by precise clinical, histological and immunological features presented by Anhalt in 1990. Prognosis is very severe and depends on the associated neoplasia and the gravity of the mucosal damage. CASE REPORT: Paraneoplastic pemphigus was diagnosed in a 62-year-old man with chronic lymphoid leukemia. The course was favorable up to one-year follow-up after general corticosteroid therapy. DISCUSSION: This case illustrates that paraneoplastic pemphigus can be controlled by general corticosteroids and would suggest the severe prognosis may be improved.

Glucocorticoids↗

[Light and heavy chain deposition disease with cutaneous and renal manifestations].

INTRODUCTION: Monoclonal light and heavy chain deposition disease is a rare syndrome distinct from light chain amyloid, which is defined by the presence of monoclonal deposits of immunoglobulins in various tissues. CASE-REPORT: A 65-year-old man presented with renal symptoms due to membranoproliferative glomerulonephritis, associated with urticarial papules located on the arms and back. Histological examination of a skin biopsy specimen showed lymphocytic vasculitis. Direct immunofluorescence examination of kidney and skin lesions using anti-gamma 2 and anti-Kappa monoclonal antibodies, showed a similar staining on the basement membrane zone and vessel walls. COMMENTS: As far as we know, this is the first documentation of monoclonal light and heavy chain deposition disease associated with a lymphocytic skin vasculitis and renal involvement caused by similar monoclonal deposits of immunoglobulins in the kidney and skin.

Aged↗

[Generalized pseudoxanthoma elasticum combined with vitamin K dependent clotting factors deficiency].

INTRODUCTION: Pseudoxanthoma elasticum is a connective tissue disease currently classed in 4 forms. Two forms are inherited via dominant autosomal transmission and the other two via recessive autosomal transmission. The generalized form of pseudoxanthoma elasticum is the most uncommon form and corresponds to recessive type II. Clinical manifestations include the typical generalized "peau d'orange" skin associated with hyperlaxity of the skin. Usually, there is no systemic manifestation. CASE REPORT: We report a case of a patient with generalized pseudoxanthoma elasticum associated with deficiency of vitamin-K dependent factors II, VII, IX, and X. A search for other causes of vitamin-K dependent factor deficiency was negative. DISCUSSION: The association of generalized pseudoxanthoma elasticum with deficiency of vitamin-K dependent clotting factors has been reported previously in very rare cases and is probably not fortuitous. It could led to the definition of a sub-group of recessive autosomal pseudoxanthoma elasticum.

Adult↗

[Acute necrotizing cutaneous streptococcal infection following bites or scratch by dog or cat].

INTRODUCTION: Domestic animal bites or scratches are quite frequent. Among banal bacteria isolated from infected bites or scratches, group A streptococcus seems to be frequently associated with severe infections. CASE REPORTS: Three cases of acute necrotizing cutaneous streptococcal infections, following cat or dog bite or scratch are reported. Twice, group A streptococcus was isolated from cutaneous swabs. In the third case, previous antibiotic therapy had sterilised bacteriological samples. Diagnosis was ascertained on the basis of clinical presentation and significant antistreptococcal antibodies elevation. Skin necrosis around the inoculation area was observed in the 3 cases. Cicatrisation required an average of two months under appropriate treatment. DISCUSSION: An evolution towards cutaneous necrosis localized to the initially injured area is common to these three cases. This peculiar evolution is worth to be known in order to choose an effective anti streptococcal antibiotherapy whenever domestic animals bites and scratches are to be treated.

Acute Disease↗

[Type B Haemophilus influenzae cellulitis in an immunocompetent adult].

INTRODUCTION: Only a few cases of Haemophilus influenzae type B cellulitis have been reported in adult patients. They generally involve immunocompromised patients, and are located in the cervico-facial areas. CASE-REPORT: We report a 43 year-old immunocompetent patient who presented a cellulitis of the leg. No cutaneous or upper respiratory pathways entry portal was found. Abcedation of cutaneous lesions allowed the isolation of numerous colonies of Haemophilus influenzae type B from a subcutaneous fluid aspirate. COMMENTS: The unusual site of the infection, the age and the immunocompetent status of the patient, the lack of initial infectious localisation and the slow healing of lesions despite appropriated antibiotic therapy, are of particular interest.

Adult↗

Nuclear DNA content and chromatin texture in multidrug-resistant human leukemic cell lines.

Nuclear morphological alterations associated with multidrug resistance (MDR) were evaluated by image cytometry in various human leukemic cell sub-lines: 3 cell lines with P-gp-mediated resistance (CEM-VLB, HL60/Vinc, K562-Dox), the non-Pgp-mediated MDR HL60/AR leukemic cell line with over-expression of MRP, and the at-MDR CEM-VMI leukemic cell line with alteration of topoisomerase II. All these MDR cell sub-lines were obtained by drug selection and were compared with their sensitive counterparts and with the hamster LR73-R cell line obtained by transfection of mouse mdrl cDNA. All MDR cell sub-lines obtained by drug selection displayed decreased DNA Feulgen stainability as compared with their respective sensitive parental cell line, a phenomenon not observed in the transfected LR73-R cells. Nuclear texture analysis on G0/G1-selected cell nuclei revealed 2 types of textural phenotype. The first phenotype was characterized by chromatin decondensation with small but compact chromatin clumps, and was observed in drug-selected P-gp-mediated MDR cells (CEM-VLB, HL60-Vinc, K562-Dox) and in the non-P-gp-mediated MDR HL60/AR cell line. The second phenotype was characterized by a condensed and homogeneous chromatin pattern, and was observed in the at-MDR CEM-VMI cell line. LR73-R cells transfected with mdrl cDNA did not display any significant changes in textural phenotype as compared with sensitive LR73 cells, suggesting that P-gp over-expression alone cannot account for the cytological modifications observed in MDR cells. These data suggest that multidrug resistance could be associated with specific nuclear morphological changes which appeared to be a consequence of alterations occurring during selection by cytotoxic drugs rather than of P-gp over-expression.

ATP Binding Cassette Transporter, Subfamily B, Mem↗

Intracoronary stenting without coumadin: one month results of a French multicenter study.

In order to simplify post-coronary stenting treatment and to obtain a lower rate of complications, especially in bailout situations, seven French institutions treated 246 stented patients with 0.25 g/day of ticlopidine, 0.1 g/day of IV aspirin, and 2 days of heparin followed by low-molecular-weight heparin for 1 month. Fifty percent of patients had a planned stenting procedure, and 50% had an unplanned procedure, including 29 (11.8%) in bailout situations. Subacute occlusion occurred in three (1.2%) patients (one death, two non-Q-wave infarctions). During the 1 month follow-up period, another death was reported (non-stent-related), two elective coronary artery bypass grafts were performed, and three additional patients presented with non-Q-wave myocardial infarctions. Nine (3.7%) patients had a groin complication that required blood transfusion or surgical repair. These results suggest that while waiting for the technological advancements of stents, postprocedural treatment that includes a low dosage of ticlopidine, aspirin, and low-molecular-weight heparin is a very effective alternative to conventional poststenting therapy.

Adult↗

[Paraneoplastic pemphigus: review of the literature, apropos of a case associated with chronic lymphoid leukemia].

In 1990, Anhalt et al described a newly autoimmune bullous disease: paraneoplastic pemphigus, in five patients. It was characterized by a distinct set of circulating autoantibodies from those in the sera of patients with pemphigus vulgaris and superficial pemphigus. We report a 71 year-old man with chronic lymphocytic leukemia of 4 years duration who developed a severe mucocutaneous eruption with clinical and immunofluorescence findings of pemphigus vulgaris evolving into an oral bullous lichen planus presentation. Evaluation of his serum confirmed the presence of autoantibodies specific for paraneoplastic pemphigus by indirect immunofluorescence on rat-bladder and immunoprecipitation. Subsequently, additional cases have been reported in the literature. All occurred in patients with various neoplastic conditions. These patients present with polymorphous skin lesions and severe erosive oral disease. Histologic examination shows interface dermatitis and keratinocyte necrosis in addition to acantolysis. Direct immunofluorescence may reveal deposition of immunoglobulin and/or complement at the basement membrane as well as deposition on epithelial cell surfaces. Circulating IgG anti-cell-surface antibodies are detectable with both stratified and stratified epithelia as substrates. These antibodies immunoprecipitate a complex of four desmosomal proteins, including desmoplakin I (250 kDa), the bullous pemphigoid antigen (230 kDa), desmoplakin II (210 kDa) and a 190 kDa antigen.

Aged↗

Primary cutaneous medium and large cell lymphomas other than mycosis fungoides. An immunohistological and follow-up study on 54 cases. French Study Group for Cutaneous Lymphomas.

Primary cutaneous medium and large cell lymphomas (MLCL) other than mycosis fungoides (MF) are rare, and their prognosis and treatment are controversial. The clinical, immunohistological and follow-up data of 54 well-documented cases of primary cutaneous MLCL other than MF, seen in our institutions over a 14-year period, were retrospectively reviewed, in order to determine the prognostic factors related to these lymphomas, and to analyse the results obtained with different treatment regimens. Forty-six patients presented with a solitary tumour or with localized lesions, and eight had disseminated cutaneous lesions. According to the updated Kiel classification, 45 cases (83%) corresponded to B-cell lymphomas: centroblastic lymphomas, 32 cases; centroblastic-centrocytic lymphomas, 11 cases; immunoblastic lymphomas, two cases. Nine cases (17%) were classified as T-cell lymphomas: pleomorphic medium and large cell lymphomas, eight cases; anaplastic large cell lymphoma, one case. Four of eight patients with disseminated skin lesions had a T-cell lymphoma, whereas 41 of 46 patients with a solitary tumour had a B-cell lymphoma. Patients with disseminated skin lesions and elevated serum lactate dehydrogenase (LDH) levels had a poor prognosis. Comparison of patients' overall survival, depending on immunohistological subtype, showed that the median survival of patients with pleomorphic T-cell lymphoma was 2.5 years, whereas it was not reached at 12 years for patients with centroblastic-centrocytic and centroblastic lymphoma. The eight patients with disseminated skin lesions were treated with polychemotherapy.(ABSTRACT TRUNCATED AT 250 WORDS)

Adult↗