Gene/Protein Disease Symptom Drug Enzyme Compound
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Query: UMLS:C0019163 (hepatitis B)
 38,309 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

An earlier cross-sectional study had revealed that institutionalized Down's syndrome (DS) patients possessed much lower titres of hepatitis B surface antibodies (anti-HBs) than did their non-Down's (ND) counterparts. In an attempt to determine whether DS patients were generally deficient in humoral antibody response, the inmates of an institution for the mentally retarded (110 DS, seventy-eight ND) were immunized with tetanus, diphtheria (toxoids), influenza A, influenza B (inactivated vaccines), measles, mumps and rubella (attenuated vaccines), and tested for their antibody responses. The DS and ND groups did not respond differently to any of the seven antigens. Furthermore, there was no general relationship between the anti-HBs titres of inmates and their capacity to respond to the defined antigenic stimulus of any of the seven antigens. From these results it is apparent that a general humoral deficit in the DS group cannot explain their tendency to possess much lower anti-HBs titres than their ND counterparts upon becoming infected with the hepatitis B virus. When the antibody status and responses to immunization of the inmates who possessed anti-HBs were compared with those who had chronic HBsAg antigenaemia, there was no significant difference between the groups.
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PMID:The antibody response of institutionalized Down's syndrome patients to seven microbial antigens. 14 42

Several viral infections besides rubella are known to cause fetal anomalies and disease. Cytomegalovirus, for example, may adversely affect the fetus in a number of ways. Either herpesvirus or hepatitis B virus is transmissible from mother to offspring. Viruses whose potential for fetal harm is less clear are those of varicella, mumps, and influenza.
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PMID:Viral infections that affect the fetus. 17 62

The present measles problem in the United States, an estimated 918,500 cases in 1977, is attributed to the failure of the 14-year vaccination program to immunize enough children to prevent continued circulation of the virus and recurrent outbreaks. A new strategy for rapidly overcoming this problem is recommended. There appears to be no current congenital rubella syndrome problem against which the rubella vaccination program in the United States is directed. However, the continued annual infection of an estimated two million children conceivably could again bring fourth a rubella virus with a greater capacity for producing congenital rubella syndrome, and a modification of the present program is recommended. About 80 to 90% of the annual 60-70 million cases of severe enough to confine the victim to bed influenza are not caused by the influenza viruses. Except for the few thousand additional deaths directly attributed to influenza A virus during the epidemic years, mortality rates for pneumonia, heart diseases, chronic bronchopulmonary diseases, and other former "high-risk" conditions have continued to decrease in recent years, and have not risen during the 12-month periods of epidemic years. A re-evaluation of the current influenza vaccination policy is recommended. Prospects for hepatitis B and varicella-zoster vaccines are discussed.
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PMID:Overview and horizons in prevention of some human infectious diseases by vaccination. 21 Jun 52

The conditions for a sensitive and specific solid-phase radioimmunoassay (RIA) for the detection of IgM antibodies to hepatitis A virus (HAV) were optimized, and the RIA was used to assay sera from patients with hepatitis. IgM antibodies to HAV reached highest concentrations between one and three weeks after onset of icterus and were measurable in follow-up sera for at least 12 months after infection. To prove the specificity, the IgG antibodies were separated from patient sera by sucrose density-gradient centrifugation. The remaining IgM antibodies, after treatment with beta-mercaptoethanol, did not bind in the RIA, and, when the anti-IgM antibody bound to the solid phase was replaced with anti-IgG, a negative result was obtained with incubation of IgM antibody to HAV. Also, the presence of IgG was shown not to interfere with measurement of IgM antibody to HAV. Finally, as a further specificity control, 50 sera positive for rheumatoid factor or from patients infected with hepatitis B virus, cytomegalic inclusion disease, infectious mononucleosis, influenza A virus, rubella, or measles were tested, and all of these sera were negative for IgM antibody to HAV.
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PMID:A solid-phase radioimmunoassay for detection of IgM antibodies to hepatitis A virus. 22 90

N-alpha-Cocoyl-L-arginine ethyl ester, DL-pyroglutamic acid salt (CAE), exhibited a strong inactivating effect on hepatitis B surface antigen. Concentrations of CAE required for 50 and 100% inactivation of the antigen were 0.01 to 0.025% and 0.025 to 0.05% respectively. CAE completely inactivated hepatitis B surface antigen at the lowest concentration compared with various compounds including about 500 amino acid derivatives, sodium hypochlorite, 2,4,4'-trichloro-2'-hydroxydiphenyl ether, and some detergents. Furthermore, CAE inactivated vaccinia virus, herpes simplex virus, and influenza virus, whereas poliovirus was not inactivated at all. The results suggest that the inactivating effects of CAE are related to interaction with lipid-containing viral envelopes.
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PMID:N-alpha-Cocoyl-L-arginine ethyl ester, DL-pyroglutamic acid salt, as an inactivator of hepatitis B surface antigen. 22 95

The conditions are examined, which advise the adoption or discontinuance of a vaccination. In Italy, anti-polio vaccination is compulsory and ought to be enforced also in the future. On the contrary, the vaccination against variola has to be discontinued. Specific vaccines may prevent measles and rubella and their efficacy, expecially in the case of measles, is well ascertained. A vaccine against hepatitis B virus is desirable. Controversial issues on antirabies and anti-influenza vaccines are mentioned and discussed.
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PMID:[Present issues in antiviral vaccines (author's tranls)]. 55 52

Catechin derivatives including (-)-epicatechin gallate (ECG), (-)-epigallocatechin gallate (EGCG), (-)-epigallocatechin (EGC) and green tea extract (GTE) were found to inhibit the activities of cloned human immunodeficiency virus type 1 reverse transcriptase (HIV-1 RT), duck hepatitis B virus replication complexes reverse transcriptase (DHBV RCs RT), herpes simplex virus 1 DNA polymerase (HSV-1 DNAP) and cow thymus DNA polymerase alpha (CT DNAP alpha). EGCG and ECG were shown to be very potent inhibitors of HIV-1 RT. According to the IC50 values for HIV-1 RT, these compounds can be ordered as EGCG 0.0066 mumol/L > ECG 0.084 mumol/L > GTE 0.1 microgram/ml > EGC 7.2 mumol/L. DHBV RCs RT was the least sensitive to these compounds. Kinetic study showed that EGCG exerts a mixed inhibition with respect to external template inducer poly (rA).oligo (dT) 12-18 and a noncompetitive inhibition with respect to substrate dTTP for HIV-1 RT. Bovine serum albumin significantly reduced the inhibitory effects of catechin analogues and GTE on HIV-1 RT. In tissue culture GTE inhibited the cytopathic effect of coxsackie B3 virus, but did not inhibit the cytopathic effects of HSV-1, HSV-2, influenza A or influenza B viruses.
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PMID:[The inhibitory effects of catechin derivatives on the activities of human immunodeficiency virus reverse transcriptase and DNA polymerases]. 128 89

A potential teratogenic activity of virus infections caused by the viruses of rubella, influenza, parotitis, hepatitis B, cytomegalovirus and the Epstein-Barr virus was investigated. Specific antibodies against these viruses were examined serologically in children with orofacial clefts and in their mothers and the results were compared with those obtained in control children and their mothers. Different micromethods were used in performing the examinations (ELISA, RIA, NIR, KFR, HIT). Evaluation of the results and their statistical processing supports the assumption that prenatal infection may have occurred in the series studied induced by the viruses of influenza, rubella, cytomegalovirus, and possibly also by the Epstein-Barr virus. No association with the viruses of parotitis and hepatitis B was established. (Tab. 5, Ref. 36.)
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PMID:[Prenatal virus infections and orofacial clefts]. 128 28

The outpatient management of patients infected with human immunodeficiency syndrome is reviewed. Patients with CD4+ cell counts of greater than 0.5 x 10(9)/L (500/mm3) require no specific intervention except vaccination against influenza, pneumococcus, and possibly hepatitis B. They should have a follow-up examination every 3 to 6 months. Because of its success in preventing the progression of the disease, zidovudine (AZT), 100 mg five times per day, is recommended for patients with CD4+ cell counts of less than 0.5 x 10(9)/L (500/mm3). During this stage of the disease, a patient should be seen every 1 to 3 months and monitored for drug toxicity and disease progression. Patients with CD4+ counts of less than 0.2 x 10(9)/L (200/mm3) are at high risk of developing Pneumocystis carinii pneumonia. Prophylaxis with oral trimethoprim-sulfamethoxazole (one double-strength tablet three times weekly) or dapsone (100 mg three times weekly) is recommended. Treatment costs for the patient with CD4+ cells less than 0.5 x 10(9)/L (500/mm3) are at least $3000 per year.
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PMID:Outpatient management of patients infected with human immunodeficiency virus. 134 66

During the 1970s and the early 1980s, immunization practices in the United States were unchanged. Immunization against pertussis, tetanus, diphtheria, measles, mumps, rubella, and polio were routinely administered to children. Infections with these organisms declined dramatically. Nonetheless, research was vigorous, culminating in the 1980s in new vaccines and changes in immunization strategies and practices. This presentation will focus on these changes: universal hepatitis B immunization; two-dose schedule for the measles, mumps, rubella (MMR) vaccine, Hemophilus influenza type B vaccine for infants, acellular pertussis vaccine as booster immunizations, the inactivated polio vaccine, and the yet-to-be-licensed live varicella vaccine.
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PMID:Immunization update. 149 Jun 20


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