PubMed Health⌕ Search

Biomedical subjects

W Halota

Publications and source records attributed to W Halota.

At least 19 recordsLinked to original sources
PubMed1999

Oxidative DNA base damage in lymphocytes of HIV-infected drug users.

In the present study, we have studied the level of oxidative DNA base damage in lymphocytes of HIV-infected intravenous drug users (IDUs) and a seronegative control group. Chromatin was isolated from the lymphocytes and then analyzed by gas chromatography/isotope-dilution mass spectrometry with selected-ion monitoring (GC/IDMS-SIM). Significantly greater levels of four oxidatively modified DNA bases were observed in chromatin samples from the symptomatic HIV-infected patients than in those from the seronegative patients. These were 5-hydroxyuracil, 5-hydroxycytosine, 8-hydroxyadenine and 8-hydroxyguanine. In the case of 5-hydroxyuracil and 8-hydroxyguanine, a statistically significant difference was also found between the control group and the asymptomatic HIV-positive patients. These results suggest that oxidative stress may play an important role in the pathogenesis of acquired immune deficiency syndrome (AIDS), and that administration of antioxidant drugs to HIV-infected patients may offer protection against AIDS-related carcinogenesis.

Adenine↗
PubMed1996

[Humoral response in hepatitis C infections: types of anti-HCV and reactivity evaluated using BLOT-index].

In this paper an attempt has been made at quantitative evaluation of reactivity of various types anti-HCV using proposed BLOT-index. We based our research on 20 patients diagnosed with hepatitis-C (clinical, biochemical, serological and enzymatical criteria--repeatedly positive results of second generation screening tests EIA ABBOTT HCV and UBI HCV Monoelisa Organon Teknika) who were anti-HCV determined at the beginning the acute phase and after 3 and 6 months. Multiantigen tests were used veryfying LIATEK-HCV 2 and LIATEK-HCV 3 Organon Teknika. Value of BLOT-index was algebraic sum of "pluses" for particular anti-HCV. Three models of dynamics of BLOT-index were observed: increase, plateau and decrease. Statistically significant differences between values of BLOT-index were shown at the beginning of the acute phase of hepatitis-C and after 6 months. There were no differences observed between convalescents and patients who developed chronic hepatitis-C (test t-Student's and f-Fisher's). Reactivity of anti-HCV, evaluated using BLOT-index, shown increasing trend, which is a dominant pattern, however quantitative and qualitative changes do not occur more frequently than every 6 months. The LIATEK-HCV 3 gives fewer undetermined reactions and detects anti-HCV earlier than a former generation of this test.

Adult↗
PubMed1995

[Efficacy of passive and active immunization against HBV infection in children with neoplastic diseases].

The efficacy of 3 schemes of passive and active prevention of HBV infection was evaluated in 47 children with haematologic proliferative diseases. Twenty-six children suffering from leukemia (group I) received passive immunisation (hepatitis B immunoglobulin) in six week intervals during intensive chemotherapy and were vaccinated on maintenance therapy. Thirteen children with Hodgkin or B-non-Hodgkin lymphoma (group II) received active immunisation from the beginning of intensive chemotherapy with two doses of immunoglobulin. Eight children who had completed their therapy (group III) were vaccinated only. Among children who completed vaccinations, 5/8 in group I, 4/7 in group II and 5/5 in group III produced protective anti-HBs levels. Passive/active prophylaxis was successful in most patients suffering from neoplastic diseases and reduced the endemy of HBV infection in our department from 43.3% to 2.56% infected subjects. Among 7 patients vaccinated from the beginning of treatment (group II), 4 of them produced protective levels of anti,-HBs, despite intensive chemotherapy.

Adolescent↗
PubMed1992

[Results of liver examination in drug addicts infected with HIV virus].

Investigations included 52 drug-addicts with asymptomatic HIV virus infection. 8 of them suffered some years ago, from virus hepatitis of type B. Physical examinations did not reveal in examined persons any deviations from normal condition except for hepatomegaly. Results of liver biochemical investigations remained within normal limits. In each of them one confirmed presence of serological markers of HBV infection and in 35 of them of HCV and in 5 of them in parallel HDV. In all the examined persons one carried out liver biopsy and routine morphological examinations. In every case one disclosed a liver injury of drug-induced type. Further, in 31 examined persons one detected a coexistence of chronic, active inflammatory process of liver hepatitis minimal--17 hepatitis chronica persistent--12 hepatitis chronica aggressivE--1 cirrhosis hepatis--1 and in four of them changes of the type fibrosis periportal. In HIV infected drug-addicts it comes about to clinically asymptomatic, chronic hepatitis coexisting with morphological changes of drug-induced type liver.

Adult↗
PubMed1992

[Gastroduodenal reflux and histological changes in the gastric mucosa in patients with liver cirrhosis caused by HBV].

Endoscopic and histologic examinations of the gastric mucosa were performed in a group of 35 patients with HBV liver cirrhosis and 30 healthy persons. From among the patients 2 groups were singled out according to a liver disease progression: cirrhosis during liver functional compensation (n - 20). Cirrhosis over the period of liver functional unbalance (n - 15). In the two groups of patients examined the authors found pathological changes in the gastric mucosa, those in the group of patients with liver functional unbalance being more frequent and progressed. A statistically significant relationship was found between the duodenal contents in the stomach and the appearance of inflammatory changes in the mucosa.

Adult↗
PubMed1991

[Serological markers of selected viral infections transmitted by parenteral route in drug addicts].

Investigations included a group 80 asymptomatic drug addicts. They were examined immunoenzyme method aiming at detection infection by HIV, HBV, HCV and HDV. Cases of seropositive HIV results were confirmed by means WB. In 68 examined patients serological evidence of virus HBV was discovered. In 60 of them one also found out coexisting HIV serological markers, in 51 of HCV markers. HDV antibodies were disclosed in 7 cases. Infection with hepatotropic viruses were more frequent in group of HIV(+) drug addicts.

Acquired Immunodeficiency Syndrome↗
PubMed1991

[Hepatitis C (personal observations].

In 222 patients treated in the Department of Infectious Diseases Medical School of Bydgoszcz, one carried out immunoenzymatic examinations to find out presence of HCV antibodies. Among them, there were 33NANBH patients as well as 32 diagnosed as CAH NANB origin, 55 chronic hemodialysis patients and finally 102 IVDU. It was pointed out that the patients suffering from acute and chronic hepatitis type NANB were often HCV infected. Drug addicts (IVDU) and chronic hemodialysis patients constitute high risk groups of these infections. It should be stressed that these infections are asymptomatic in just these groups of patients. One discussed some epidemiological and clinical aspects of 19 hepatitis C cases.

Chronic Disease↗
PubMed1990

[Errors in the diagnosis of chronic intrahepatic cholestasis].

In nine out of ten patients referred in the years 1982-1987 to the Infectious Diseases Department of the Medical Academy in Bydgoszcz with the diagnosis of chronic (sometimes lasting several years) intrahepatic cholestasis an extrahepatic etiology of cholestasis was recognised. The main causes of the made errors were, it seems, an excessive confidence in the results of laboratory examinations carried out by modern diagnostic methods and a not very careful analysis of the disease. Exploratory laparotomy should be the examination of decisive importance in cholestasis of unclear etiology.

Adult↗
PubMed1990

[Suppurative meningitis in a patient with severe botulinum toxin type B poisoning].

A case of botulism with severe course is described. The patient was a woman aged 42 years treated in a gynaecology hospital department with erroneous diagnosis of peritonitis and paralytic ileus. The development of signs of meningitis caused that the patient was transferred to a hospital for infectious diseases where the correct diagnosis was established. After 63 days of treatment the patient was discharged home without any clinically detectable sequelae of the disease.

Adult↗
PubMed1990

[Organization of health care for persons from the groups of high risk of HIV infection in Bydgoszcz].

The existing in Bydgoszcz infectivity infrastructure was made available to AIDS infection risk groups. The AIDS infected patients make use of ambulatory and in-patient health service together with other sick people. Among 72 detected infections only 2 cases remain without any connection with drug addiction. In this paper one presented advantages of the accepted organisational model as well as the effects of its functioning.

Acquired Immunodeficiency Syndrome↗