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Biomedical subjects

J Werner

Publications and source records attributed to J Werner.

At least 217 records · Page 12Linked to original sources

[Immunogenicity, efficacy and reactogenicity of a human diploid cell strain (HDCS) rabies vaccine in man; recommendations for pre- and post-exposure application (vaccination scheme) (author's transl)].

Since 1973 a total of 365 individuals between 4 and 74 years of age were vaccinated with the HDCS-rabies-vaccine produced by Mérieux/Lyon. Only minor local side reactions were observed in some patients. No adverse systemic reactions due to the vaccine occurred in any of the vaccinees. Seroconversion was observed in 100% of the vaccinated subjects. Neutralizing antibodies could be demonstrated in all 365 vaccinees in titers ranging from 1:10 to 1:2238 (0.35 to 72.5 I.U) employing 200 LD 50 of rabies virus in the mouse neutralization test. The persistence of antibodies has been followed up for 2 years. The efficacy of the HDCS-vaccine in post-exposure treatment proved to be reliable. Sixteen patients suffered bites, scratches, cuts und abrasions by proven rabid animals. Another 8 patients had come into close contact with saliva of confirmed rabid animals. None of these patients developed clinical rabies during an observation period now covering 1-3 years. The HDCS-rabies-vaccine, thus, proved to be well tolerated, innocuous and highly protective. Under those aspects, this vaccine must be considered superior to the duck-embryo-vaccine currently licensed in Germany and should be preferred for propylactic and post-exposure vaccination as well. The postexposure schedule elaborated in our laboratory has been adopted and recommended by a WHO expert group on rabies. The data presented here constitute the first report on post-exposure application of HDCS-rabies-vaccine in man.

Adolescent↗

The presence of Herpesvirus Saimiri genomes in virus-transformed cells.

Herpesvirus saimiri (H. salmiri) -transformed cells contained both types of viral DNA, unique L-DNA and highly repetetive H-DNA. DNA from spleen and lymph-node autopsies of two tumor-bearing marmoset monkeys contained 0.14-0.75% viral L-DNA -AND 0.115-1.08% H-DNA. This amount of H-DNA would be equivalent to the presence of 14-130 M-genomes per diploid tumor tissue cell. Six virus-transformed lymphoid cell lines, two of them virus-producing, contained 0.69-2.27% H-DNA and more than 0.72-1.95% L-DNA. These concentrations of H-DNA sequences correspond to 83-274 M-genome copies per lymphoid tissue culture cell. The majority of viral genomes in transformed non-producer lymphoid cell lines appeared to be defective, since part of the L-sequences present in virions were found to be deleted in the genome copies of transformed cells. There was a relative excess of repetitive H-sequences in all transformed cells in regard to the ratio of H-DNA/L-DNA in M-genomes of H. saimiri virions.

Animals↗

Influences of local and global temperature stimuli on the Lewis-reaction.

Oscillatory changes of temperatures of the human fingers in cold air (Lewis-reaction) are investigated under central and local influences. After heat load of the body, the Lewis-reaction is suppressed, no matter which environmental temperature of the hand is chosen. Decrease of finger temperature during oscillatory behaviour takes about twice as much time as increase. A dependence of the time course on the chosen environmental temperature is not evident. Mean level of temperature oscillation rises with increased environmental temperatures of body and hand, whereas the amplitude of oscillation increases with growing environmental tre of the hand. After cold load of the body the Lewis-reaction is suppressed in some individuals. Interpretation of the Lewis-reaction and interaction of global and local requirements are discussed.

Adult↗

Hemodynamic advantage of combined administration of hydralazine orally and nitrates nonparenterally in the vasodilator therapy of chronic heart failure.

Patients with severe left ventricular failure generally have both reduced cardiac output and increased pulmonary and systemic venous pressures. A study was therefore made of the use of combined vasodilator therapy with nonparenterally administered nitrates, which act primarily on venous capacitance vessels and thus reduce preload, and orally administered hydralazine, which acts on arteriolar resistance vessels and thus reduces afterload. Twelve patients with chronic refractory heart failure were given these drugs individually and in combination during continuous hemodynamic monitoring. Heart rate and arterial pressure did not change significantly. Nitrates significantly reduced filling pressures of both ventricles without affecting cardiac index. Hydralazine did not alter filling pressures but dramatically increased cardiac index. The hemodynamic effects of each drug were additive during combined therapy, resulting in a 36 percent (28 to 18 mm Hg) mean decrease in left ventricular filling pressure and a 58 percent (2.1 to 3.3 liters/min per m(2)) mean increase in cardiac index. The seven patients who have continued to receive combined therapy for 3 to 10 months have shown sustained clinical improvement.

Administration, Oral↗

A computer program for calculating different kinds of intraclass correlation coefficients.

A program for calculating different forms of intraclass correlation coefficients is described. Confidence limits as well as unbiased estimates are given for those kinds of coefficients, for which an exact sampling distribution is derivable. Additionally, coefficients based upon Krippendorff's model are computed so that error components responsible for the lack of perfect correlation can be specified.

Computers↗

[Concepts of psychiatric diagnoses: a further investigation of the reliability of psychiatric diagnoses (author's transl)].

A total of 128 physicians and psychologists, working in six psychiatric hospitals, were asked to allocate 10 psychiatric diagnoses on the basis of typical clinical criteria (symptoms, course of illness, etiological and anamnestic data), with which they were supplied. The correct diagnosis was made in 45.3%, while in 82% the broad diagnostic group was correctly ascribed. The respondents were divided into two groups, according to the amount of diagnostic data they had been given (though in fact the information necessary for differential diagnosis was given equally to both groups). The group which made diagnosis on the grounds of more comprehensive data (ten characteristic diagnostic items) did significantly worse them the group which had few data (six characteristic items). The stereotypes for mania, endogenous depression, obsessional-compulsive neurosis, and antisocial personality disorder were correctly defined by 75% of more of the respondents. The profiles of the remaining six diagnostic groups were associated with the corresponding diagnoses by 50% or fewer of the respondents.

Adjustment Disorders↗

Oral hydralazine therapy for chronic refractory heart failure.

The hemodynamic effects of oral hydralazine were investigated in ten patients (nine in NYHA Class IV and one in Class III) with chronic refractory heart failure. With hemodynamic monitoring, adequate oral doses of hydralazine (50 or 75 mg) were determined and then administered every six hours. Hemodynamics were determined at 2-3, 6-8 and 24 hours on hydralazine therapy. Arterial pressure decreased slightly (5%) and systemic vascular resistance decreased significantly (42%). Cardiac and stroke volume index increased by 70 and 66%, respectively, without any significant change in heart rate, pulmonary capillary wedge or right atrial pressure. Hemodynamic improvement was associated with clinical improvement without a major complication. During the follow-up period of 3-7 months, seven of nine patients were in NYHA Class II and one in Class III. One other patient died suddenly six weeks after discharge. These findings suggest that hydralazine in an effective oral vasodilator for the treatment of refractory heart failure.

Adult↗

On the transport of various endogenous plasma proteins from blood to peripheral lymph in man.

A method to prepare peripheral lymph out of the foot of clinically healthy patients with respect to their blood capillaries and lymph vessels is presented. Following electrophoresis in molecular sieving polyacrylamide gel the lymph/plasma quotients of precentages of identical protein fractions in both body fluids as well as of their concentrations were graphically displayed dependent on their migration velocity within the gel. As the high or low lymph-plasma-relations are necessarily to be interpreted in the sense of a relatively high or low blood-lymph permeation the findings are speaking against an exclusive effect of the molecular sieving principle at the blood-tissue-barrier. An explanation for special lymph-plasma-relations would be provided by the assumption of a gel-filtration effect in the extravascular circuit of plasma-proteins. The results affirm the findings of former experiments on animals in an analogue model. The method as well as simplified variants might be useful for the investigation of peripheral nutritive disorders as well as of clinicopharmacological questionings.

Adult↗

Lymphoproliferative disease in a cotton-top marmoset after inoculation with infectious mononucleosis-derived Epstein-Barr virus.

Injection of concentrated EBV derived from cells of the Kaplan line of infectious mononucleosis (IM) origin resulted in malignant lymphoproliferation in one out of three cotton-top marmosets 6 weeks after inoculation. Two additional animals receiving the same isolate after incubation with an antibody-containing human serum did not develop tumors. Inoculation of concentrated virus derived from the P3HR-1 line of Burkitt origin did not lead to lymphoproliferations in five marmosets. Three of these received non-neutralized, and two received neutralized P3HR-1 virus. The tumor obtained with the Kaplan isolate revealed characteristics of a lymphosarcome. It contained EBV-specific DNA. In addition, EBV-synthesizing lymphoblastoid lines were established from a tumorous lymph-node, as well as from the spleen of the diseased marmoset. Virus recovered from these lines transformed lymphocytes derived from spleens of healthy marmosets. The tumor-bearing animal developed low levels of anti-VCA antibodies during the course of tumor growth. These data demonstrate the oncogenic potential of EBV directly derived from cells of IM origin.

Animals↗