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B Böttiger

Publications and source records attributed to B Böttiger.

53 records · Page 3Linked to original sources
PubMed1987

HIV infection in a defined population of Swedish haemophiliacs.

The results of a clinical follow-up of 124 Swedish patients with haemophilia A and B or severe form of von Willebrand's disease are reported, especially with regard to HIV infection and complications thereof. 44 of the patients were anti-HIV positive. In this group there was an increasing prevalence of lymphadenopathy (18 cases), diarrhoea and fungal infections. 10 patients had generalized persistent lymphadenopathy. Platelet counts were significantly lower and IgG, IgA and IgM levels significantly higher than in the anti-HIV negative group. Oligoclonal protein bands in the gammaglobulin region were found in 8 of the anti-HIV positive patients. The vast majority of these changes have appeared during the past year, and 1-5 years after seroconversion. Presently 22/44 (50%) anti-HIV positive haemophiliacs have at least one symptom related to this infection. Most of the clinical complications have been possible to treat or to mitigate so far.

AIDS-Related Complex↗
PubMed1986

Impaired production of alpha and gamma interferon in asymptomatic homosexual males.

In vitro production of alpha interferon and gamma interferon was examined in cell cultures from 90 asymptomatic homosexual males and 19 healthy heterosexual male controls. The production of alpha and gamma interferon was significantly suppressed in homosexuals as compared to that in heterosexual controls (p less than 0.005 and p less than 0.001, respectively). Forty-one of the homosexuals produced less gamma interferon than any of the heterosexual controls. Antibodies against the human immune system virus (HIV) were found in eight homosexuals, who produced significantly less alpha and gamma interferon than did the HIV-seronegative homosexuals (p less than 0.02). Neither carriage of Entamoeba histolytica or Giardia lamblia nor serological evidence of infection with cytomegalovirus, Epstein-Barr virus or hepatitis B virus was associated with a significantly lower production of interferon than that found in homosexual males seronegative for these infections. No correlation was found between number of partners or practice of passive anal intercourse and production of interferons in homosexual men. It is concluded that the significantly lower production of both alpha and gamma interferon in asymptomatic homosexual males may play an important role in susceptibility to viruses, including HIV.

Adult↗
PubMed1986

Transmission of HIV infection to heterosexual partners but not to household contacts of seropositive haemophiliacs.

The prevalence of HIV antibodies in 44 heterosexual female partners and 56 nonsexual family household contacts of 61 HIV seropositive haemophiliacs (41 adults and 20 children or adolescents) was determined to evaluate the risk of transmission of HIV infection. HIV antibodies were determined by enzyme-linked immunosorbent assay and positive reactions were confirmed by Western blotting. HIV antibodies were demonstrated in 4/40 (10%) regular heterosexual partners of 40 seropositive patients with haemophilia A. Four temporary heterosexual partners of one additional seropositive haemophiliac were seronegative. 56 nonsexual household contacts including 30 parents, 13 siblings and 13 children of 29 seropositive haemophiliacs were all negative for HIV antibodies. Thus transmission of HIV occurred from seropositive haemophiliacs to their heterosexual partners but not to nonsexual household contacts.

Acquired Immunodeficiency Syndrome↗
PubMed1985

Antibodies to human T lymphotropic virus type III demonstrated by a dot immunobinding assay.

A dot immunobinding (DIB) technique was applied to the demonstration of antibodies to human T-lymphotropic virus type III (HTLV-III). By this technique IgG antibodies to HTLV-III were demonstrated in six of six Swedish patients with acquired immune deficiency syndrome and in 37 of 39 (95%) Swedish homosexual men with persistent generalized lymphadenopathy but in none of 50 Swedish healthy blood donors. Findings obtained by this method showed complete concordance with those obtained by an enzyme-linked immunosorbent assay. All sera positive by DIB were also positive by Western blotting. The DIB assay is simple and well suited for screening of sera for HTLV-III antibodies.

Acquired Immunodeficiency Syndrome↗
PubMed1985

Immunohistopathology of lymph nodes in HTLV-III infected homosexuals with persistent adenopathy or AIDS.

Lymph node biopsies from 43 male homosexuals with persistent generalized lymphadenopathy and from ten acquired immunodeficiency syndrome patients, all with serum antibodies to human T-cell leukemia virus III, were studied with regard to histopathology, immunohistology, and T-cell subsets in cell suspensions. All acquired immunodeficiency syndrome biopsies except one with Kaposi's sarcoma had the same histopathological pattern of follicular depletion, whereas the persistent generalized lymphadenopathy nodes showed a spectrum of changes characterized as follicular hyperplasia, involution with follicular fragmentation, or involution with follicular atrophy. Immunohistology showed a temporal and structural relation between follicular involution, disappearance of follicular dendritic reticulum cells, and follicular invasion by T-cells. These observations suggest elimination of dendritic reticulum cells as part of a pathogenic mechanism in follicular involution. Angiogenesis measured by staining of endothelial cells with antibodies to Factor VIII was increased in many biopsies in stages of involution and depletion. Our observations indicate the occurrence of marked changes not only in T-cells but also in the B-cell compartment of patients with persistent generalized lymphadenopathy or acquired immunodeficiency syndrome. The possibility of staging lymph nodes of these patients by combined histopathology and immunohistology is indicated. This might improve the evaluation of prognosis in these patients. A possible importance of angiogenesis for the tumorigenesis of Kaposi's sarcoma is suggested.

Acquired Immunodeficiency Syndrome↗
PubMed1985

HTLV-III infection in homosexuals and hemophiliacs in Sweden.

Two hundred and three homosexual (HS) men and 114 hemophiliacs in Sweden were examined for serum antibodies to human T-lymphotropic virus type III (HTLV-III) and for alterations of T-lymphocyte subsets. Sera were screened for HTLV-III antibodies by an enzyme-linked immunosorbent assay and/or a dot immunobinding assay, and positive reactions were confirmed by Western blotting. HTLV-III antibodies were demonstrated in 13 of 13 (100%) HS men with acquired immune deficiency syndrome, in 63 of 67 (94%) HS men with persistent generalized lymphadenopathy, in 17 of 45 (38%) symptomatic HS men, and in 6 of 78 (8%) asymptomatic HS men but in none of 108 male blood donors. Seropositive HS men had significantly lower T4/T8 (helper/suppressor) cell ratios and T4 cell numbers than had seronegative HS men. Seronegative HS men had decreased T-cell ratios compared to controls but not decreased T4 cell numbers. Among hemophilia A patients, HTLV III antibodies were demonstrated in 40 of 48 (83%) cases treated with American factor VIII concentrate and in 17 of 29 (59%) cases treated with both American and Swedish concentrates but in none of 13 cases treated exclusively with Swedish factor VIII. Twenty-one hemophilia B patients treated with Swedish factor IX concentrates were all seronegative, whereas one of 3 hemophilia B cases treated with imported factor IX was seropositive. T4/T8 cell ratios were significantly lower in seropositive as compared to seronegative hemophilia A patients.

Acquired Immunodeficiency Syndrome↗
PubMed1981

Incidence and cause of aplastic anemia, hemolytic anemia, agranulocytosis and thrombocytopenia.

A total of 745 patients with cytopenia (aplastic anemia 157, hemolytic anemia 101, agranulocytosis 136, thrombocytopenia 351) were diagnosed during a 5-year period in a health care region comprising 16% of the Swedish population. The total incidence was for aplastic anemia 24.6, hemolytic anemia 15.8, agranulocytosis 21.3 and thrombocytopenia 55.0 cases per 10(6) and year. Compared to 10 years earlier, aplastic anemia and agranulocytosis have become more common, thrombocytopenia occurs with unchanged frequency while hemolytic anemia is rarer. The overall incidence is 5 times higher in elderly (greater than 65 y.) than in younger patients and 1.3 times higher in women than in men, figures that make total incidence figures rather meaningless. The most common cause is "unknown" (45%), the next drug-induced (25-36% including cytostatic drugs). Disregarding cytostatics, the drugs most often encountered are oral diuretics, analgesics, antiphlogistics and sulfonamides.

Adolescent↗
PubMed1980

Antibody-dependent haemolytic activity of human leukaemic cells.

Antibody-dependent cellular cytotoxicity (ADCC) of human leukaemic blood cells against human RBC treated with IgG isoantibody was studied by the 51Cr-release method. ADCC in this particular system is a property of normal phagocytic cells of the monocytic and myeloid series while lymphocytes are inactive. Well differentiated leukaemic monocytes from patients with acute monocytic leukaemia were highly cytotoxic and engulfed opsonized RBC. Promyelocytic leukaemic cells from two patients with acute promyelocytic leukaemia were cytotoxic and phagocytic. Seven patients with low differentiated acute myeloblastic leukaemia had no cytotoxic or phagocytic blood cells. Leukaemic B cells from patients with chronic lymphocytic leukaemia or prolymphocytic leukaemia lacked cytotoxic and phagocytic properties. It is concluded that ADCC against isoantibody-treated human RBC may be a tool to distinguish between well and poorly differentiated leukaemic cells of the monocytic or myeloid series.

Antibody-Dependent Cell Cytotoxicity↗
PubMedDate not supplied

Immunoglobulin levels in haemophiliacs at HIV seroconversion and during follow up.

Immunoglobulins and aminotransferases were followed in 66 haemophilia patients and 13 von Willebrand patients over a six-year period. The results were correlated to HIV serology and lymphocyte subsets. Elevated IgG levels were found in 29/53 patients with haemophilia A, 2/13 with haemophilia B and in 0/13 with von Willebrand's disease. Elevated IgA and IgM levels were seen in 20% and 27% of the patients respectively, with a distribution similar to the elevated IgG levels, except that elevated IgA and IgM levels were also seen in 4/13 patients with von Willebrand's disease. Patients with HIV antibodies had significantly higher immunoglobulin levels than seronegative patients, and this elevation occurred in connection with seroconversion in the majority of the former. The IgG levels could not be correlated to the T4 cell count, but there has been a trend to less clinical symptoms related to HIV infection among those with stable IgG levels during the past few years. No correlation was found between elevated IgG levels and the aminotransferase levels, nor was any correlation found with the amount of blood coagulation factor concentrate given to the patients. The elevation of immunoglobulins observed in our haemophiliacs is multifactorial, but HIV infection is maybe the most important mechanism. The longitudinal IgG pattern may contribute to the prediction of the clinical outcome of this infection.

Adolescent↗