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Biomedical subjects

M V Simonova

Publications and source records attributed to M V Simonova.

At least 19 recordsLinked to original sources

[MALT-lymphomas in Sjogren's disease].

AIM: To develop algorithm of early diagnosis of extranodal lymphoma arising in patients with Sjorgen's disease (SD). MATERIAL AND METHODS: SD diagnosis was made in 457 patients treated in Rheumatology Institute clinic in 1999-2004, 38 (8.3%) females aged 19-82 had lymphoproliferative diseases. MALT-lymphomas were diagnosed in 15 (42.2%) patients. All the patients have undergone morphological, immunomorphological investigations of the salivary glands, postoperative material was analysed in some patients. In addition, the following investigations were made: ultrasonography of the salivary glands, lymph nodes, viscera; scintigraphy; trephine biopsy of the bone marrow; myelograms; CT of the chest, abdomena and brain; tests for monoclonal immunoglobulins in the serum and light chains in urine; biopsy of the parotid gland. Clinical, morphological and immunophenotypical characteristics of MALT-lymphomas were assessed by WHO classification. Lymphoma stages were classified according to Ann Arbor. RESULTS: Parotid glands were affected with MALT-lymphoma most frequently. Predominant were extranodal lymphomas of the parotid submandibular, minor salivary glands of the lip and lacrimal glands of stage I E-II E. Extranodal lymphoma with nodal lesion of stage IV occurred less frequently. Untreated long existing MALT-lymphomas of the parotid glands may transform into B-large cell lymphomas deteriorating SD prognosis. The presence of long-term (> 12 months) massive enlargement of parotid/submandibular salivary and lacrimal glands, massive infiltration, monoclonal immunoglobulins in blood serum and their light chains in the urine predict development of MALT-lymphoma in SD. CONCLUSION: In SD, MALT-lymphomas develop primarily in target organs--salivary and lacrimal glands. SD patients with persistent enlargement of the parotid glands need biopsy for early detection of malignant lymphoproliferation.

Adult↗

[Sicca syndrome in sarcoidosis and involvement of the salivary and lacrymal glands].

AIM: To present differential-diagnostic signs of sarcoidosis with affection of the salivary and lacrymal glands and Sjogren's disease. MATERIAL AND METHODS: The examination of 620 patients with affection of the salivary and lacrymal glands revealed sarcoidosis in 19 of them. The diagnosis was verified histologically. Clinical, serological and histological characteristics of sarcoidosis patients were compared to those of 200 patients with Sjogren's disease (SD) detected among the examinees. RESULTS: Sarcoidosis patients vs those with SD (p < 0.001) had massive enlargement of the salivary glands (84.3%) with severe xerostomy which appeared rather early (78.9%), affection of the lacrymal glands manifesting with enlargement of the palpebral region, edema of the upper eyelids (57.9%), pulmonary lesion (78.9%), cranial nerves (47.4%), skin (42%), enlargement of the intrathoracic lymph nodes (100%). CONCLUSION: In spite of the presence of mucosal dryness simulating SD, sarcoidosis of the lacrymal and salivary glands has some specific features allowing differentiation of sarcoidosis.

Adult↗

[Prognostic implications of mixed monoclonal cryoglobulinemia in Sjogren's disease].

AIM: To specify the risk of severe systemic manifestations and transformation into malignant lymphoma in Sjogren's disease (SD) patients with monoclonal mixed cryoglobulinemia (MMC). MATERIAL AND METHODS: A prospective study performed in 1985-1990 included 248 SD patients followed up after the initial detection of monoclonal immunoglobulins (Ig) with serum active rheumatoid factor (RF). The patients' cryoglobulins (CG) were examined. The type of CG was determined by electrophoresis in agarose gel combined with immunofixation and immunoelectrophoresis with mono-specific antisera to heavy and light Ig chains. Biopsies of the lower lip salivary glands and skin were made in all the patients with MMC and 40 patients without CG. The biopsies were studied histologically, histochemically and immunomorphologically. Clinical symptoms and prognosis were studied in all the patients observed in 1985-2000 after the initial diagnosis of MMC. In suspected lymphoma development, histological and immunophenotypical studies of lymph node, bone marrow biopsies, trephine biopsies were made as well as myelograms, Ga-67 scintigraphy, CT of the thoracic and abdominal cavities. The total of clinical, morphological, immunophenotypical and cytogenetic characteristics of lymphoma was estimated by REAL classification. RESULTS: CG at first examination was detected in 50 (20.2%) of 248 patients with SD. 20 (40%) of 50 patients were diagnosed to have MMC with monoclonal IgMchi (19) and IgA (1) in the serum with RF activity. Ten (50%) patients with MMC developed lymphoma after 10.9 +/- 3.3 years, on the average. In the absence of CG lymphoma developed in 5.5% (p < 0.001). B-cell intoxication in patients with diffuse lymphadenopathy, foci of lymphoid infiltration in the lungs, ulcers of the crus and such indices as stab neutrophilic shift, monocytosis, hypoproteinemia with hypogammaglobulinemia, disappearance of the RF, CG, low CIC level, immunodeficiency of monoclonal Ig and appearance of the protein BJ in the urine are markers of developing large B-cell immunosecreting lymphomas. Highly aggressive diffuse LCL resulted in death of 70% SD patients with MMC; 30% died of immunocomplex cryoglobulinemic vasculitis. 10-15-year survival of SD patients after detection of MMC was 50%, free of CG - 97% (p < 0.001). CONCLUSION: MMC is a definite serological marker of developing lymphoma and ulcerative-necrotic vasculitis in SD. In detection of MMC in SD patients it is necessary to prescribe early pathogenetically validated treatment before development of life threatening manifestations.

Adolescent↗

[Clinical factors essential for dental caries intensity in rheumatic patients].

A total of 349 patients with rheumatoid arthritis, 129 with systemic lupus erythematosus, and 92 with systemic scleroderma were examined. A higher incidence of caries (CDL index) in comparison with the norm (p < 0.05) was observed in all patients; the most significant factor promoting caries development was involvement of the salivary glands presenting as Sjogren's syndrome (p < 0.005). The presence and severity of temporomandibular involvement virtually did not affect the intensity of caries (p > 0.1). The highest CDL index was observed in patients with rheumatoid arthritis and systemic scleroderma with pronounced dysfunction of the hand joints (p < 0.01) and higher activity of disease (a higher percentage of patients with Sjogren's diseases of the second and third degrees of activity) (p < 0.05). These data confirmed the multifactorial nature of dental caries etiology in rheumatic diseases.

Dental Caries↗

[Clinical and laboratory characteristics of patients with Sjogren's disease lasting from young age].

AIM: Characterization of Sjogren's disease (SD) with onset at early age basing on the comparison of two patient groups--with the disease onset at the age under 30 and over 50. MATERIALS AND METHODS: Clinical, ophthalmological and stomatological examinations were performed in 31 SD patients who developed the disease at the age under 30 (group 1) and over 50 (group 2). RESULTS: In group 1 the disease started with parotitis in 42.8% of cases, dysfunction of secreting epithelial glands was rare, functional activity of exocrine glands was normal, dysproteinemia (high total protein levels, hypergammaglobulinemia, hypoalbuminemia) and immunological defects (high levels of circulating immune complexes, rheumatoid factor, antinuclear factor) were more pronounced. At retrospective analysis not only a decline of functional activity of the salivary and lacrimal glands but also appearance of systemic symptoms were registered. CONCLUSION: Development of systemic SD symptoms at young age necessitates early pathogenetic therapy employing corticosteroid, cytostatic and other drugs.

Adolescent↗

[Enzyme immunoassay of human chorionic beta-gonadotropin in biological fluids using photographic detection].

Potentialities of a new detection method making use of photographic information transformers were demonstrated as exemplified by enzyme immunoassay of human chorionic beta-gonadotropin. Commercial enzyme immunoassay kits for measurements of human chorionic beta-gonadotropin manufactured by Diaplus joint venture were used in the study. The results of traditional spectrophotometric detection and photographic detection were in good correlation, the correlation coefficient r being equal to 0.882. The sensitivity of the method permits reliable testing of clinically significant gonadotropin concentrations in biologic fluids.

Adult↗

[Secondary amyloidosis in elderly patients with rheumatoid arthritis].

Examination of rheumatoid arthritis (RA) patients (52 males and 35 females) revealed secondary amyloidosis (SA) in 44.2% and 48.6% of patients, respectively. The disease was confirmed by amyloid deposits in biopsy specimens of gingival mucosa. As far as age-specific SA incidence is concerned, SA was more prevalent in elderly age-groups: 29.7% and 80% in males under and over 50, respectively; 15.4% and 68.2% in relevant women. The disease history in old patients was not long: 4.6 +/- 1.0 yr and 3.3 +/- 0.7 yr for males and females, respectively. Not a single case of amyloid deposit occurred in patients with systemic lupus erythematosus at the age over 60. The contribution of sex hormones and other factors to SA onset in RA is under discussion. An old age of RA patients and associated infection, especially urogenic, can predispose to SA development.

Age Factors↗

[Cryoglobulinemia in Sjögren's syndrome].

As many as 130 patients with Sjögren's disease (SD) were examined for blood cryoglobulins during 1977-1982. Cryoglobulinemia was discovered in 25 (19.2%) patients with SD. The clinical manifestations such as severe xerostomia, appreciable increase of the parotid salivary glands, hepatosplenomegaly, purpura, polyneuropathy, lesions of the lungs and kidneys were mostly detectable in SD patients with cryoglobulinemia. Ten cryoprecipitates of SD patients with cryoglobulinemia showed the monoclonal immunoglobulins IgMk-9 and IgA-1. All the patients had high titers of antinuclear antibodies and 90% manifested antinuclear Ro/La antibodies. Over the 5-year period. SD patients with cryoglobulinemia manifested the growth of hepatosplenomegaly, ulcerous-necrotic vasculitis, polyneuropathy, polyneuritis, cerebral vasculitis, lesions of the lungs and kidneys. The development of the grave systemic manifestations of the disease was attended by a decrease of immunological activity and the rise of inflammatory activity. The 5-year survival of SD patients with cryoglobulinemia was 64% against 98% in SD patients without cryoglobulinemia (p less than 0.001).

Adult↗

The effect of rimantadine on the structure of model and biological membranes.

The action of the antiviral drug rimantadine on the structure of bilayer lipid membranes (BLM) and RBC membranes was investigated. Structural changes in BLM were recorded by ionophore conductivity changes and by changes in the third harmonic of capacity current signal due to lateral compression of BLM in an electric field. It was shown that the adsorption of rimantadine on BLM results in an increase in ionophore mobility in bilayer membranes of dioleolyllecithin (DOL) and common lipids of bovine brain (CL) and in a decrease in those of azolectin (A). Relative changes in the third harmonic signal also depend on the membrane composition and have different signs. The results may be explained by the rimantadine action on the lipid bilayer structure: "rigidification" of A-membranes and "fluidization" of BLM from DOL and CL. Structural reorganization of RBC membranes as investigated by the ability of the cells to enter a micropipette (inner diameter greater than or equal to 3 microns) thereby undergoing deformation. It was shown that rimantadine influences RBC deformability due to drug induced inhomogenous mechanical membrane properties. Also, rimantadine accelerated the process of artificially induced aggregation of erythrocytes. The relation of the effects on artificial and biological membranes, and the structural changes in the lipid phase of membrane are discussed.

Adamantane↗

[Extracorporeal therapy (hemosorption, plasmapheresis) in the combined treatment of severe forms of Sjögren's disease].

The clinical and laboratory efficacy of the combination of plasmapheresis, hemosorption disease. The combined Sjögren's disease. The combined intensive treatment led to improvement in the cases with disturbances of the peripherial and central nervous system, kidneys, blood vessels (Raynaud's syndrome), joints and muscles. The efficacy of this treatment is proved in cryoglobulinemic and hypergammaglobulinemic purpura and is comfirmed by the reliable decrease of the rheumatoid factor, circulating immune complexes. C-reactive protein and gamma globulins. A positive dynamics of the exocrine glands function and microcirculation is found.

Adult↗

[Comparative evaluation of the treatment of Sjögren's syndrome with anti-rheumatic preparations].

The paper is devoted to comparative assessment of combined therapy of prednisolone, chlorambucil, chloroquine phosphate and ibuprofen at small doses and its effect on clinicolaboratory signs of Sjogren's disease in 80 patients in the course of 1 and 5 years. Patients of the control group received only local therapy of the parotid glands. The results have demonstrated that combined therapy at small doses of prednisolone and chlorambucil (5 mg + 4 mg) is an effective method of treatment of the stomatological, ophthalmological and articular manifestations of SD and is also capable of preventing the systemic signs of disease. Combined therapy with chloroquine phosphate and ibuprofen neither influenced the clinicolaboratory signs of disease nor prevented disease progression with the development of systemic signs of diseases of various degrees. Disease progression was observed in 80% of patients receiving no basic drugs or receiving chloroquine phosphate+ibuprofen while in groups of patients receiving small doses of prednisolone and chloambucil disease progression was observed in 20% only.

Adolescent↗

[Stomatological manifestations in Sjögren's disease and syndrome].

For diagnosis of SS and SD and the detection of early stages of disease one should necessarily take into account the symptom complex of "major" (salivary gland enlargement, xerostomia, exacerbation of parotitis) and "minor" stomatological signs (multiple cervical caries, dry lips, perlèche, mycotic and herpetic stomatitis, lymphadenopathy). The initial, marked and late stages were defined according to a degree of expression of stomatological manifestations. The initial stage prevailed in SS, the late stage in SD. The chief method of examination were sialometry, sialography and minor salivary gland biopsy. Sialography was widely used as a less traumatic diagnostic procedure. In addition to common signs with SD, salivary gland involvement was characterized by changes typical of SS combined with rheumatic disease (sclerosis in sclerodermia, vasculitis in RA and SLE, nuclear pathology in SLE).

Adult↗

[Sjögren's syndrome in systemic scleroderma].

Combined investigation of 43 patients with sclerodermia systematica (SSD) was conducted to detect Sjogren's syndrome (SS) and to study SSD association with SS. Four groups of patients were defined: with marked SS (10), primary SS (12), probable SS (13), and without SS manifestations (8). Comparative characterization has shown that SS is detected slightly more frequently in a chronic course of SSD, combines with manifestations of sclerodactyly, telangiectasia, calcinosis, however esophageal hypomobility, indurative skin changes and contractures which are typical of SSD, occur less frequently than in SSD patients without SS. SSD association with SS is characterized by polyarthralgia, arthritis, marked Raynaud's syndrome, the frequency and rather high RF titers, the detection of anti-Ro and anti-La, and a significant rise of the level of circulating immune complexes determined by SS influence. SS manifestations in SSD are retention pains in the parotid glands, signs of clearness on sialograms, periductal sclerosis in the form of rings in morphological investigation of the parotid glands.

Adult↗

[Pulse therapy in the complex treatment of severe forms of Sjögren's syndrome and disease].

Ten patients with Sjögren's disease and 5 patients with systemic lupus erythematosus combined with Sjögren's syndrome received therapy with high doses of 6-methylprednisolone (pulse-therapy) and cyclophosphamide. Improvement of the stomatological signs of the disease was noted in all the patients: salivation increased, the parotid glands considerably decreased in size, parotiditis recurrences were absent or seldom, and the number of the functioning salivary glands of the lower lip increased. The above therapy showed a positive effect on ophthalmological symptoms of the disease in 5 patients. Combination therapy (6-MP and CP) was effective for the management of such systemic symptoms of SD and SS as arthritis, lymphadenopathy, hepatosplenomegaly, exudative polyserositis, polyneuritis, ulcerative-necrotic vasculitis, cerebrovasculitis, cryoglobulinemic purpura and glomerulonephritis. A significant decrease in the levels of immunoglobulins especially IgA, A-nDNA, cryoglobulins, titers of rheumatoid factors, circulating immune complexes and an increase in the complement were noted in response to therapy.

Adult↗