Development of recombinant DNA vaccine against hepatitis B grown on cultured yeast cell has made it possible to mount a world-wide effort to control and eradicate Hepatitis B infection. However, the currently recommended schedules (0, 1 & 2 months, and 0-1 and 6 months) do not coincide with the scheduled visits for other E.P.I. vaccines, and necessitate additional visits for Hepatitis B vaccination. This study was therefore carried out to find out if adequate seroconversion occurs to Hepatitis B vaccine when given with other EPI vaccines or not? Thirty nine infants born to Australia antigen positive mothers from among 850 screened pregnant mothers were recruited to receive Hepatitis B vaccine (Engerix B-10 micro gram each) at 0, 6 and 14 wks (group A) or at 0, 1 and 2 months (group B). Thirty-one infants were recruited in group A and 8 in group B. The cord blood was collected and the first dose of vaccine was given within 48 hours of birth. Simultaneous B.C.G. was given at the left deltoid. Other E.P.I. vaccines were given qt 6, 10 and 14 wks in group A and at 2, 3 and 4 months in group B. Repeat blood samples were collected prior to giving each dose of Hepatitis B vaccine, and 4 weeks after the last dose. All blood samples were assayed for HBsAg and HBsAb at the National Institute Of Communicable Diseases, utilizing standard ELISA kits. The seroconversion rates following one, two and three doses of Hepatitis B vaccine were 3.33%, 55.5%, 96.15% and 0%, 62.5% and 100% in group A and B respectively.(ABSTRACT TRUNCATED AT 250 WORDS)

Age Factors↗

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Shortening recovery time from diazepam and midazolam.

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Aged↗

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Metabolism, pharmacokinetics and excretion of a potent tachykinin NK1 receptor antagonist (CP-122,721) in rat: characterization of a novel oxidative pathway.

The metabolism, pharmacokinetics and excretion of a potent and selective substance P receptor antagonist, (+)-(2S,3S)-3-(2-methoxy-5-trifluoromethoxybenzlamino)-2-phenylpiperidine, CP-122,721, have been studied in rat following oral administration of a single dose of [14C]CP-122,721. Total recovery of the administered dose was 84.1+/-1.1% for male rat and 80.9+/-2.7% for female rat. Approximately 81% of the administered radioactivity recovered in urine and faeces were excreted in the first 72 h. Absorption of CP-122,721 was rapid in both male and female rat, as indicated by the rapid appearance of radioactivity in plasma. The plasma concentrations of total radioactivity were always much greater than unchanged drug, indicating early formation of metabolites. CP-122,721 t1/2 was 3.1 and 2.2 h for male and female rat, respectively. The plasma concentrations of CP-122,721 reached a peak of 941 and 476 ng ml-1 for male and female rat, respectively, at 0.5 h post-dose. Based on AUC0-tlast, only 1.5% of the circulating radioactivity was attributable to unchanged drug (average of male and female rats) and the balance, approximately 98.5% of the plasma radioactivity was due to metabolites. The major metabolic pathways of CP-122,721 were due to O-demethylation, aromatic hydroxylation and indirect glucuronidation. The minor metabolic pathways included aliphatic oxidation at the piperidine moiety and aliphatic oxidation at the benzylic position of the trifluoromethoxy anisole moiety. In addition, a novel oxidative metabolite resulting from ipso substitution by the oxygen atom and trifluoromethoxy elimination followed by glucuronide conjugation was also identified.

Administration, Oral↗

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Angio-proliferative lesions in a homosexual boar with features resembling Kaposi's sarcoma.

Clinical, biopsy and necropsy studies of a homosexual boar revealed angio-proliferative lesions in the skin of the thigh, scrotum and the inguinal lymph node. Angiofibromas were identified in the dermis and subcutis of the thorax and mandible. The avidin-biotin-peroxidase complex technique demonstrated Factor VIII-related antigen as a marker for the neoplastic endothelial cells of the tumors. This boar also showed weight loss and lymphopenia. Explants of tumors were maintained in cultures for 22 passages and cultured cells produced tumors when injected subcutaneously into nude mice. No viral antigen was detected in the cultured tumor cells. Similarities and differences between the lesions in the boar and human Kaposi's sarcoma are discussed.

Animals↗

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Serum lipids and uric acid relationship in ischemic thrombotic cerebrovascular disease.

Serum lipids and serum uric acid have been studied in 50 patients with ischemic thrombotic cerebrovascular disease. Patients having diseases known to predispose to hyperuricemia were excluded. Abnormalities of large vessels were present in 14 or 30 cases (46.6%) as a whole, and in 9 of 16 cases (56.5%) below 40 years of age. Thirty percent of the cases showed hyperuricemia. A statistically significant rise in serum triglycerides, pre-beta lipoproteins and serum uric acid was found in all 50 patients and in patients below 40 years of age. In patients above 40 years of age, only the rise in serum triglycerides and pre-beta lipoproteins was found to be statistically significant. A statistically significant rise in serum triglycerides, pre-beta lipoproteins, cholesterols and uric acid was found in patients with abnormal angiograms. A statistically significant correlation was observed between serum uric acid and serum triglycerides in all the groups, between serum uric acid and pre-beta lipoprotein in patients below 40 years of age, and between serum uric acid and serum phospholipids in patients with abnormal angiograms. These factors may be playing a role in the causation of ischemic thrombotic cerebrovascular disease in general and especially in patients below 40 years of age.

Adult↗

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Serum lipids, platelets, and fibrinolytic activity in cerebrovascular disease.

Fifty patients with occlusive cerebrovascular disease (ischemic thrombotic cerebrovascular disease--ITCBVC) were studied for clinical features, angiographic findings, serum lipids, platelet functions and fibrinolytic activity. Angiograms were abnormal in 24 of 36 cases. Two-thirds of these had an abnormality of the internal carotid artery in the neck; one-third had occlusion of the middle and/or anterior cerebral arteries. A statistically significant rise of serum triglycerides, pre-beta lipoproteins, platelet adhesiveness and aggregation, and a decrease in fibrinolytic activity were noticed in these patients as compared to age and sex matched controls. The correlation coefficient did not show any intercorrelation between the platelet adhesiveness and raised lipid fractions. These factors could be responsible for the atheroma resulting in large vessel occlusion.

Adult↗

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Geometric isomerization of doxepin during its N-demethylation in humans.

The N-demethylation of the individual Z-(cis) and E-(trans) isomers of the tricyclic antidepressant doxepin was studied by examining the 0-8 hr serum concentration-time and the 0-72 hr urinary excretion profiles of parent drug and metabolite in eight healthy males who had received a single oral dose consisting of 25 mg each of Z-[2H0]- and E-[2H4]-labeled drug as the hydrochloride salt. Interconversion of doxepin's isomers was not observed but stereoselective excretion was present. Significant amounts of Z-N-desmethyldoxepin were formed and excreted after dosing with E-doxepin, the urinary Z/E ratio ranging from 0.08 to 3.06. A small amount of nondeuterated E-N-desmethyldoxepin was formed from Z-doxepin in most, but not all, subjects. These findings indicate that isomerization occurs during the N-demethylation of doxepin, possibly involving the formation of an intermediate in which the exocyclic double bond is hydrated and then subseqently dehydrated. This novel biotransformation process accounts for the observation that the Z/E plasma concentration ratio of N-desmethyldoxepin is often greater than that of the administered doxepin in patients receiving the drug therapeutically.

Adult↗

PubMedDate not supplied

Studies on immune infertility: a hypothesis on the etiology of immune infertility based on the biological role of seminal plasma immune response inhibitor.

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Animals↗

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Hepatitis B and hepatitis C in multitransfused children.

The study was conducted on 75 multitransfused children aged between 2 and 13 years who attended the Department of Paediatrics, LNJPN Hospital, New Delhi from July 1990 to July 1991. These included 64 cases of thalassaemia major, 4 cases of haemophilia, 3 patients of acute lymphatic leukaemia and one each of acute myeloid leukaemia, aplastic anemia, chronic idiopathic thrombocytopenic purpura and acute haemorrhagic pancreatitis. HBsAg was tested in all, Anti-HBc was tested in 44 patients and Anti-HCV in 43 patients. Anti HDV was tested in HBsAg positive patients and IgM anti-HAV was tested in patients suffering from hepatitis. Liver function tests were evaluated in all patients. HBsAg was positive in 31% of patients; 40% of males and 15% of females were HBsAg positive, the difference being statistically significant. 84% of patients were Anti-HBc positive, 21% were anti HCV positive, 4% were Anti HDV positive. 15% of the patients had post transfusion hepatitis. Anti HCV was present in 57% of the hepatitis patients; none had anti-HAV IgM.

Child↗