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N Ansaldi

Publications and source records attributed to N Ansaldi.

At least 55 records · Page 3Linked to original sources
PubMed1985

Infection with the delta agent in children.

Serological evidence of infection with the hepatitis B virus associated delta agent (delta) was found in 34 of 270 Italian children with HBsAg-positive liver disease. In different histological forms of chronic HBsAg hepatitis the prevalence of delta infection increased in parallel with the activity of the disease and was maximal in children with cirrhosis. During two to seven years of follow up the hepatitis deteriorated in 38% of the 34 patients with delta infection and ameliorated only in 9%. By contrast the disease usually ran a mild course in the 236 delta-negative carriers of HBsAg, with remission in 55% of these children and deterioration in only 7%. The outcome of chronic hepatitis associated with delta infection was not influenced by treatment with steroids and azathioprine. Chronic delta infection in children is usually accompanied by serious liver disease, that has a tendency to progress and is unresponsive to conventional immunosuppressive treatment.

Adolescent↗
PubMed1985

Bethanechol versus antiacids in the treatment of gastroesophageal reflux.

To compare the efficacy of bethanechol in the treatment of gastroesophageal reflux with that of antiacids, a prospective, cross-over study was undertaken, in which 20 affected infants and children were randomized into two groups on 6-week alternate bethanechol and antiacids oral medication. Patients were evaluated clinically and by esophageal pH-metry before and after each treatment. Clinical score amelioration was achieved earlier than reflux number reduction and with similar incidence in both groups of patients, irrespectively to the initial medication; moreover, the differences in the degree of improvement between the two groups after either treatment were not found to be significant. These results fail to show that bethanechol is more effective than antiacids in controlling gastroesophageal reflux; moreover, bethanechol is more difficult to administer and offers a higher rate of undesired side effects.

Aluminum Hydroxide↗
PubMed1983

Serum trypsinlike immunoreactivity in cystic fibrosis. An aid in assessing progressive involvement of the pancreas.

Serum trypsinlike immunoreactivity (TLI) was measured in 42 children with cystic fibrosis (CF) and related to age and steatorrhea. The mean TLI value in 106 age- and sex-matched control subjects was 22 +/- 7.2 ng/mL. In patients with CF, TLI showed a widespread distribution (range, 0.3 to 214 ng/mL), and an exponential inverse correlation between TLI and age was found. The same trend in the decline in TLI values with increasing age was evident in patients who were followed up. Reduced TLI concentrations were associated with fat malabsorption, but in younger patients with CF, normal or elevated TLI values did not exclude steatorrhea. Elevated serum TLI levels in patients with CF at an early age might reflect pancreatic ductal obstruction. Tendency for TLI to decrease with advancing age and in patients who are followed up can reflect ongoing degenerative destruction within the pancreatic gland. Serum TLI estimation in patients with CF should be used to monitor the progression of pancreatic impairment.

Adolescent↗
PubMed1983

Gm markers in celiac disease.

The association of Ig allotypes with celiac disease was analyzed in a sample of 95 Italian patients typed for HLA polymorphisms. No significant association was found for any Gm, A2m, or Km specificity when the overall sample was considered. However, significant different sex ratios were shown by patients' fnb positive and fnb negative genotypes, with a relative risk of 10.7 for this haplotype in males, suggesting that sex and Gm influence the penetrance of the HLA-linked genes. The significance of this finding is strengthened by the recent report that H-2 and Ig allotypes intervene in the genetic control of murine immune response to A-gliadin (M.F. Kagnoff, Nature 296:158, 1982).

Adult↗
PubMed1983

Does breast feeding protect against the development of clinical symptoms of celiac disease in children?

A retrospective approach has been adopted to investigate the frequency and duration of breast feeding and the time of gluten introduction in the diet in 216 celiac children and their healthy siblings of three different centers--Naples, Milan, and Turin. In this matched case-control study, the selected controls were healthy siblings of the cases. Children formula-fed from birth, or breast-fed for less than 30 days, were found to have a relative risk of developing symptoms of celiac disease four times higher than children breast-fed for more than 30 days (p less than 0.0001). To investigate more deeply the effect of the duration of breast feeding as a possible protecting factor, the linear trend for different periods of breast feeding was tested and found to be highly significant (G1: 18.3 with 1 df). Therefore, increased duration of breast feeding is associated with decreased risk of developing celiac symptoms. On the contrary, there was no apparent relationship between early introduction of gluten into the diet and frequency of celiac disease. Our findings are consistent with the hypothesis that a wider diffusion of breast feeding is a factor underlying the recently reported decrease of the incidence of celiac disease in children.

Age Factors↗
PubMed1983

HLA-DR3 and DR7 in coeliac disease: immunogenetic and clinical aspects.

The association of HLA-A,B,C, DR polymorphisms and of Bf and GLO with coeliac disease was analysed in 100 Italian children. Primary involvement of HLA-DR3 and DR7 is apparent, while specificities of nearby loci are probably associated secondarily, because of linkage disequilibrium. Direct assessment of D/DR genotype through family studies and mixed lymphocyte cultures led to the recognition of two high risk genotypes DR3/3 and DR3/7, and of two lower risk genotypes DR3/X and DR7/X. The different weight of the HLA-dependent genetic factors is to some extent correlated with the clinical and immunological parameters, suggesting that the low-risk genotypes induce a milder expression of coeliac disease. Furthermore, other genetic factors, such as sex, appear to contribute to the penetrance of the disease, especially in the case of DR3/X and DR7/X.

Adolescent↗
PubMed1979

Two HLA-D and DR alleles are associated with coeliac disease.

A group of 45 children affected with Coeliac Disease (CD) was typed for HLA-A, B, C, D, and DR specificities. The most significant associations were found with two alleles of the D series, with both cellular and serological typing. It is suggested that the susceptibility to CD is determined by two different genes within the HLA region, the first in common with organ-specific autoimmune diseases and associated with DW3, the second possibly specific for CD and associated with Dw7.

Adolescent↗
PubMed1978

Proctosigmoiditis and coeliac disease.

Of 80 children with proved coeliac disease, 2 presented with an associated disease of the distal portion of the large intestine. In one child the family history and the extension, localisation, and characteristics of intestinal lesions made us suspect ulcerative colitis; in the other we made a diagnosis of milk-induced colitis.

Celiac Disease↗