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Biomedical subjects

P Peller

Publications and source records attributed to P Peller.

At least 37 records · Page 2Linked to original sources

[Cerebral damage and cytomegalovirus infection (author's transl)].

Serological tests were performed on 58 children with microcephalus and 223 children with cerebral damage but no microcephalus (all patients were living in the Munich region). In the microcephalus group 38% had antibodies against cytomegalovirus, while in healthy controls the incidence was only 18%. Mean titre levels were significantly higher in microcephalic children. Of eleven microcephalic children seven were cytomegalovirus excreters: all of the latter had severe cerebral defects. On the other hand, in patients with cerebral damage but no microcephaly there was no difference serologically or with regard to virus excretion from healthy controls. The authors suggest, in conformity with opinions expressed by others, that there is a definite connection between--usually unrecognised--cytometalovirus infection and certain forms of cerebral damage. They may be atypical and symptom-poor diseases in which CNS signs appear only in the course of time.

Antibodies, Viral↗

[Hepatic disease in childhood and cytomegalovirus infection (author's transl)].

135 children with hepatitis and 179 patients with hepatomegaly of undetermined etiology were investigated for complement fixing antibodies to cytomegalovirus. 69 patients with hepatitis (51%) and 74 patients with hepatomegaly (41%) had a titer of 1:4 or above as compared with a control group of children without hepatic pathology in whom positive response occurred in only 20 resp. 18%. The mean titer found in the sero-positive patients was also significantly higher than that in the control group. In contrast, the incidence of positive sera in newborns with hyperbilirubinemia of unknown etiology did not differ significantly from that in a healthy control collective. Of 57 patients with liver disease, 20 excreted cytomegalovirus which was isolated 55 times from 103 urine specimens. These patients included 9 with hepatitis and 11 with hepatomegaly. Of 129 children without any indication of liver disease, cytomegalovirus could be demonstrated in only 3. Our results point toward a causal connection between the presence of cytomegalovirus and the development of hepatic disease in childhood.

Adolescent↗

[Cytomegalic virus infection in normal and disturbed immunity. Clinical and animal experiment studies].

Virological and serological studies of cytomegalovirus infections revealed following results: 1. The distribution of cytomegalovirus infections in the area of Munich can be compared with other European areas. 57% of adults have antibodies against the cytomegalovirus. 2. Cytomegalovirus is an important agent initiating infectious liver diseases in childhood. 3. The virus is also an important factor for severe cerebral retardation. 4. Studies in adult mice showed that a non-pathogenic strain of mouse cytomegalovirus can produce a fatal infection, when the immunological resistance was depressed by cytotoxic agents (i.e. cyclophosphamide, azathioprine, antilymphocyte serum). 5. Cytosine arabinoside inhibiting in vitro the replication of DNA viruses, increases in mice significantly the cytomegalovirus infection. Therefore cytosine arabinoside should be used very critically in the therapy of human cytomegalovirus infections.

Adult↗

[Diagnosis of Pneumocystic carinii pneumonia by lavage of the bronchial system (author's transl)].

This report deals with a 10 year old girl suffering from an acute lymphoblastic leukemia since 1971. The child was hematologically in full remission, when she developed a pneumonia due to pneumocystis carinii. The diagnosis was established by demonstrating the agent in bronchial secretions. The material was obtained by rinsing the bronchial system. The patient was treated with pentamidine and co-trimoxazol (Bactrim) with good success.

Bronchi↗

[Mouse cytomegalovirus infection under cytosine arabinoside treatment].

The antiviral activity of cytosine arabinoside (ARA-C) against the mouse cytomegalovirus was investigated in animal experiments using various dosages. The substance did not exhibit any virostatic effect, but on the contrary fostered the viral infection. The virus concentration in the liver after administration of five dosages of 30 mg/kg of cytosine arabinoside was 35 times higher than that in untreated animals, and after five dosages of 45 mg/kg was 70 times higher. In addition the mortality rate for infected animals treated with cytosine arabinoside was significantly higher in relation to dosage. Cytosine arabinoside also acts as an immunosuppressor in humans. Adverse effects in cytomegalo-infection can therefore not be excluded. The use of cytosine arabinoside in therapy would thus appear to be highly questionable.

Animals↗

An improved specific IgM antibody assay for Epstein-Barr virus.

A new method for detecting specific IgM antibodies to the Epstein-Barr virus using indirect fluorescence is presented. The procedure is simple and reproducible, and of great value for the diagnosis of an acute infection. The number of positive cells is higher than in the Epstein-Barr IgG test. It would seem that it is possible to detect a positive IgM-specific antigen with this new test.

Antibodies, Viral↗