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Biomedical subjects

C Carini

Publications and source records attributed to C Carini.

At least 55 records · Page 3Linked to original sources
PubMed1987

Immune complexes in food-induced arthralgia.

Ten patients are described who, in addition to other allergic symptoms, suffered from arthralgia. Dietary exclusion relieved the symptoms and specific food challenge reproduced them. IgG anti-IgE autoantibodies were high in patients with arthralgia in the serum and in the synovial fluid as compared with normals and the majority of patients with rheumatoid arthritis, traumatic arthralgia, and osteoarthritis used as controls. In three food-allergic patients IgG anti-IgE was detectable in a complexed form in the serum samples examined before and after food challenge. The finding of IgG anti-IgE autoantibody in a group of patients with allergic arthralgia is quite exciting. It raises the possibility of distinguishing a subgroup of arthralgic patients not having a classical rheumatoid arthritis, who may have a definable external exacerbating cause for their symptoms. A larger detailed survey is now in progress.

Adult↗
PubMed1987

Evidence for activation of complement in patients with AIDS related complex (ARC) and/or lymphoadenopathy syndrome (LAS).

The complement system was examined in 16 patients with AIDS-related complex (ARC) (n = 5) and/or lymphoadenopathy syndrome (LAS) (n = 11). Of these patients 62.5% showed an impairment of classical and/or alternative pathway activity associated with the presence of cleavage fragments of C3 and/or B and a significant reduction of many complement factors. The data indicate pathological complement activation in these patients through the classical and/or alternative pathway. Complement activation was more severe in patients with ARC than in those with LAS, and greater in drug abusers than homosexuals. The lack of efficient complement in the patients can be considered an 'acquired complement deficiency' with possible importance in the failure to combat the HIV attack.

AIDS-Related Complex↗
PubMed1987

Detection and characterization of circulating immune complexes in HIV-related diseases.

Using an ultracentrifugation technique human immunosuppressive virus (HIV) (GP15 and GP41), anti-HIV (anti-GP15 and anti-GP41) immune complexes were detected in the sera of 3 (1 Acquired immune deficiency syndrome (AIDS), 1 AIDS related complex (ARC), 1 Lymphadenopathy syndrome (LAS] out of 6 patients studied. Evidence for presence of HIV immune complexes was provided by: 1) demonstration of GP15 anti-GP15 and GP41 anti-GP41 immune complexes at neutral pH (pH 7.2); and 2) presence of free HIV antigen and specific HIV antibodies after dissociation of immune complex-like material with acid buffer. Formation of specific immune complexes in the sera of AIDS and ARC patients may be responsible for failure to detect free HIV antibodies in some of these patients.

AIDS-Related Complex↗
PubMed1985

Lung inflammation in sarcoidosis: analysis of immunoglobulin levels in bronchoalveolar lavage fluid in active and inactive disease.

Cellular and biochemical analyses of bronchoalveolar lavage (BAL) were performed in 8 normal subjects and in 18 patients with pulmonary sarcoidosis. The patients were divided into two groups, according to the intensity of the alveolitis as assessed by lung T-lymphocyte percentage and by 67Ga lung scan. High-intensity alveolitis (HIA) patients had an increased ratio of OKT4-positive: OKT8-positive T cells in their lungs, but not in their blood, compared to low-intensity alveolitis (LIA) patients and to controls. Biochemical analyses of BAL showed that HIA patients had increased albumin and IgG concentrations compared to LIA patients and to controls. IgA concentrations were more elevated in sarcoid patients than in controls, with no difference between the two groups of patients. No differences were detected in IgM concentrations between the three groups of subjects. The levels of different Ig classes were then calculated as a ratio with respect to albumin in order to determine whether their presence in BAL fluid was due to increased alveolar-capillary 'leak'. The IgG:albumin ratio was significantly higher in HIA patients compared to LIA patients and to controls, whereas comparison of the IGA: albumin and IgM: albumin ratios showed no significant differences between the three groups of subjects. These findings suggest that alveolar-capillary permeability is increased in pulmonary sarcoidosis and provide evidence that local IgG production is enhanced in active states of this disease.

Adult↗
PubMed1984

Migraine is a food-allergic disease.

Foods which provoked migraine in 9 patients with severe migraine refractory to drug therapy were identified. The patients were then given either sodium cromoglycate or placebo orally in a double-blind manner, with foods previously identified as provocants. Sodium cromoglycate exerted a protective effect, thus confirming that it can prevent a hypersensitivity mechanism as well as the symptoms of migraine. Immune complexes were not produced in those patients who were protected by sodium cromoglycate. These observations confirm that a food-allergic reaction is the cause of migraine in this group of patients.

Acute Disease↗
PubMed1983

An antiglobulin: IgG anti-IgE. Occurrence and specificity.

An IgG type of antibody directed against IgE has been studied in serum from healthy and allergic individuals. The technique used is based on a solid phase paper radioimmunoassay in which the discs were sensitized with purified IgE myeloma. After incubation with patient's serum, 125I anti-human IgG was added. The anti-IgE antibodies were partially blocked by endogenous IgE, indicating the presence of IgE-containing immune complexes in the serum. Heating of serum at 56 degrees C disrupted the immune complexes, thereby increasing the detectable levels of IgG anti-IgE. Significantly raised levels of anti-IgE antibodies were found in patients suffering from atopic disorders in comparison with the controls.

Antibodies, Anti-Idiotypic↗
PubMed1981

Effect of prostaglandins and cyclic nucleotides on growth and immunoglobulin secretion of two IgE myeloma cell lines.

The effect of various mediators on the growth and secretion of IgE by two human myeloma cell lines derived originally from the same tumour was tested. It was found that the growth of U266 was unaffected by PGE2, but IgE secretion was blocked. PGF2 alpha, whilst inhibiting growth, had little effect on IgE secretion. With the second cell line, U266 BL, it was found that none of the agents tested could modulate the secretion of IgE, though cell growth was blocked by PGE2. Prostaglandins act by modulating cyclic nucleotides, the E series increasing the level of cAMP and the F series causing a rise in cGMP. Our findings with prostaglandins could be mimicked by the relevant cyclic nucleotide. Possible explanations for these differences are discussed.

Cell Division↗
PubMed1980

Food allergy in migraine. Study of dietary exclusion and RAST.

Two-thirds of severe migraineurs were allergic to certain foods, shown by dietary exclusion and subsequent challenge. Radioallergosorbent test confirmed the relevance of these foods. Oral sodium cromoglycate protected these patients from food challenges. The initial specific allergic reaction in the gut may result in increased mucosal permeability which allows food antigens, complexes, or mediators to be absorbed and cause symptoms.

Antigens↗
PubMed1979

Production of IgE complexes by allergen challenge in atopic patients and the effect of sodium cromoglycate.

Specific IgE complexes and symptoms of asthma and eczema were produced in two allergic patients by oral challenge with food allergen. Both symptoms and IgE complexes could be prevented by pre-treatment with oral sodium cromoglycate. The IgE complexes can fix complement and may therefore provide the vehicle of the "late" responses seen in immediate hypersensitivity. The central role of gut sensitivity is emphasised by the protection afforded by sodium cromoglycate both when given acutely, against the effects of an oral challenge, and when given continuously for asthma and eczema due to food allergy.

Adult↗
PubMedDate not supplied

Evidence for circulating IgE complexes in food allergy.

Antigen entry and the formation of immune complexes occur in atopic subjects after food ingestion. We have studied patients with asthma, eczema and arthralgia and we were able to detect the presence of IgE immune complexes and the antigen entry from the gut before and after food challenge. Food allergic subjects showed, after food challenge, the presence of IgE and IgG immune complexes, which correlates with the subsequent occurrence of symptoms. Both the symptoms and the appearance of IgE immune complexes could be prevented by pretreatment with oral sodium cromoglycate (SCG). IgE immune complexes were isolated by an isokinetic ultracentrifugation gradient and the components were analyzed for antigen-specific IgE and IgG as well as free antigen levels. The observation that SCG reduces antigen entry, the appearance of IgE immune complexes and the occurrence of symptoms point to the central role of IgE in the intestinal mucosa.

Adult↗
PubMedDate not supplied

[Post-traumatic inflammatory pseudotumor of the lung. Description of a case].

Inflammatory pseudotumor (P.I.) of the lung is a rare benign lesion histologically characterized by a variety of inflammatory and mesenchymal cells (plasma cells, lymphocytes and histiocytes). The etiology remains obscure. We report a case of P.I. occurred immediately after a thoracic trauma. The infectious etiology is suggested by the growth of an anaerobic microorganism (Bacteroides) in tissue culture.

Bacteroides Infections↗