Gene/Protein Disease Symptom Drug Enzyme Compound
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Query: UMLS:C0021051 (immunodeficiency)
 71,517 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Separation of the alcoholic disease into a special nosological entity is founded on the basis of a clinico-morphological analysis. It is suggested to distinguish hepatic, gastric, pancreatic, cardiac, pulmonary and renal clinico-anatomical forms of the alcoholic disease that are most frequently observed in the therapeutic clinics. The most characteristic signs of the ethanol effect ("morphological markers") are as a rule observed in the exacerbation of the disease. They are as follows: alcoholic hyalin in hepatocytes and accumulation of intermediate filaments in the epithelial and mesenchymal cells. Pathology of the cytoskeleton is a morphological expression of the affected protein metabolism. Apart from the disturbance of the protein metabolism, the metabolism of lipids is damaged as well, this being manifested in the accumulation of fat inclusions in the cytoplasm of the different organ cells. Leucocytes and macrophages of the exudate in the alcoholic disease possess the signs of the functional insufficiency thus confirming the state of the immunodeficiency in alcoholics.
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PMID:[Clinical morphology of alcoholism]. 241 1

We studied the inactivation of the etiologic agent of the acquired immunodeficiency syndrome, human immunodeficiency virus, in the course of the Kistler and Nitschmann cold ethanol fractionation of human blood plasma. By measuring reverse transcriptase activity and viral infectivity, we have shown that the virus load is reduced by a factor of 10(4) during the initial and at least a factor of 10(6) during the subsequent steps of the fractionation procedure. This loss of virus may be observed in the absence or in the presence of antibodies against human immunodeficiency virus and is due to a combination of chemical inactivation, physical partition, and injury caused by repeated freezing and thawing. The laboratory data therefore further confirm epidemiological studies which indicate that immunoglobulin preparations obtained by ethanol fractionation do not transmit human immunodeficiency virus.
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PMID:Inactivation and partition of human immunodeficiency virus during Kistler and Nitschmann fractionation of human blood plasma. 245 74

Inhibition of the infectivity and cytopathic effect of human immunodeficiency virus type 1 (HIV-1) by the immunoactive fractions obtained from LEM, which is an extract of the culture medium of Lentinus edodes mycelia, is reported. A purified fraction, EPS4, obtained from LEM by ethanol precipitation followed by hydrophobic chromatography and gel filtration chromatography completely inhibited the HIV-1 induced cytopathic effect in vitro at concentrations of greater than or equal to 10 micrograms/ml. Chemical and spectral analysis revealed that EPS4 is composed of water-soluble lignins containing minor amounts of protein (3.2%) and sugars (12.2%). Taken together with the previously reported observation that EPS4 promotes the activation of macrophages and the proliferation of bone marrow cells, the fraction appears to possess both an immunostimulating activity and an anti-HIV effect in vitro.
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PMID:Inhibition of the infectivity and cytopathic effect of human immunodeficiency virus by water-soluble lignin in an extract of the culture medium of Lentinus edodes mycelia (LEM). 246 20

A role for the biological effects of alcohol is postulated in the increased risk of AIDS known to be associated with chronic alcohol abuse and alcohol consumption during sexual activity. In pilot experiments peripheral blood mononuclear cells from healthy volunteers were studied before and after a single ingestion of 0.7 to 3.1 liters of beer or an equivalent dose of ethanol in other beverages. After moderate alcohol consumption there was increased human immunodeficiency virus (HIV) replication in peripheral blood mononuclear cells during 28 days of culture without mitogen stimulation as indicated by overnight syncytium formation with SUP-T1 indicator cells and by increased levels of HIV p24 antigen in the culture supernates. There was also decreased ability of lymphocytes to produce interleukin 2 and soluble immune response suppressor activity after stimulation with concanavalin A, the former, possibly both, for over 4 days after alcohol ingestion. These preliminary data extend well-known immunosuppressive effects of chronic alcohol ingestion to acute ingestion and raise the question: Could even casual alcohol consumption enhance HIV infectivity and/or enhance the progression of latent HIV infection?
Alcohol Clin Exp Res 1989 Oct
PMID:Effects of alcohol ingestion on in vitro susceptibility of peripheral blood mononuclear cells to infection with HIV and of selected T-cell functions. 257 43

Human rib cartilage was irradiated with microwaves according to six different methods and transplanted into rabbits. Untreated rib cartilage preserved in Cialit served as a control. After 12 and 40 wk of implantation, the microscopic appearance of these xenogeneic cartilage transplants was given a score in comparison with the transplants preserved in Cialit. The microwave treatment of the cartilage appeared to improve the results. The Cialit-preserved transplants showed progressive resorption by macrophages with central necrosis and fragmentation, which was not present in the microwave-treated grafts. Microwaves seem to stabilize the cartilage matrix and enhance the diffusion of fixatives. Irradiation in ethanol as an immersion fluid appeared to be the best method. The results of transplantation can benefit from the use of microwaves in the preservation of the cartilage. It is argued that, in addition, microwave irradiation might be used for inactivation of human immunodeficiency virus in human cartilage used for transplantation.
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PMID:Microwave treatment of xenogeneic cartilage transplants. 260 83

Four cell fixation procedures were investigated for their abilities to inactivate human immunodeficiency virus (HIV) and preserve its antigenicity for antibody detection by immunofluorescence in MOLT-4-T4 cells. Air-dried cell smears were fixed in cold acetone, in acetone-methanol (1:1), in acetone-methanol (1:1) followed by 70% ethanol and then methanol, or in paraformaldehyde-acetone. Acetone alone did not inactivate cell-associated HIV, but the other three procedures did. HIV inactivation was achieved by storage of acetone-fixed cells at -70 degrees for 40 days. Antigenicity was measured by immunofluorescence assay titrations of selected human sera, a cerebrospinal fluid, and a gp41 monoclonal antibody. Acetone provided the best fixation as measured by fluorescence intensity and antibody titers. The other fixation methods all yielded weaker fluorescence signals and/or decreased titers. Acetone fixation and storage for 40 days at -70 degrees C provides safe and accurate immunofluorescence assay reagents.
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PMID:Immunofluorescence assay for human immunodeficiency virus antibody: investigation of cell fixation for virus inactivation and antigen preservation. 267 Oct 31

Lipid analyses of the human immunodeficiency virus (HIV) propagated in Hut 78 cells indicated a low total lipid/protein ratio, a high cholesterol/phospholipid molar ratio, and major phospholipids consisting of phosphatidylcholine, phosphatidylethanolamine, sphingomyelin, and phosphatidylserine; comparable lipid profiles were noted for human erythrocytes and other RNA viruses. Electron spin resonance (ESR) studies of HIV labeled with 5-nitroxide stearate (N-oxy-4',4'-dimethyloxazolidine derivative of ketostearate) showed a low "fluidity" at 37 degrees C, similar to other enveloped RNA viruses and erythrocytes and probably due to the high cholesterol/phospholipid ratio. Ethanol (50%) completely disrupts the envelope, contributing to the rapid inactivation of HIV by ethanol. Contrarily, heating to 57 degrees C causes much less fluidization, and this heating may play a role in the slower viral inactivation at high temperatures. Should a critical minimum ordering in the HIV envelope be necessary for viral stability and infectivity, manipulating the lipid composition or fluidizing the HIV membrane, or both, may provide an untried therapeutic approach.
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PMID:Lipid composition and fluidity of the human immunodeficiency virus. 282 9

Materials commonly employed in the preparation of otologic homografts such as ethanol and formaldehyde are effective in vitro in inactivating human immunodeficiency virus (HIV). However, to our knowledge, the complete permeation of homograft materials with preservative has not been demonstrated. Ethanol and formaldehyde have not been shown to be effective in inactivating the Creutzfeldt-Jakob agent. The literature on sterilization procedures for these agents is reviewed. Standard procedures for preparation of otologic homografts are examined. It is recommended that donor HIV serologic status be determined when otologic homografts must be used. Further research is required to determine the efficacy of otologic homograft sterilization techniques against HIV and Creutzfeldt-Jakob disease.
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PMID:Can acquired immunodeficiency syndrome and Creutzfeldt-Jakob disease be transmitted via otologic homografts? 304 23

Parenteral drug abusers are at risk for acquired immunodeficiency syndrome (AIDS), which is caused by human immunodeficiency virus (HIV). We tested stored sera for antibody to HIV (anti-HIV) using two enzyme-linked immunosorbent assay (ELISA) methods and Western blot. The patients were parenteral drug abusers who had undergone percutaneous liver biopsy for chronic liver disease. Current or former alcohol abuse was noted in 88 (80%) of the 110 patients. The sensitivities of the two ELISA tests in comparison with Western blot, the more specific test for HIV, were 100 and 94%, respectively; the specificities were 94 and 99%. Western blot was positive in 36 (33%) of 110 patients. False-positive ELISA reactions for anti-HIV were seen in five (7%) of 70 patients with negative Western blot analyses. Compared to true-negatives, false-positives had significantly more years of alcohol abuse, younger ages of onset of alcohol abuse, greater frequencies of jaundice and edema, higher levels of alkaline phosphatase, total billirubin, total protein, and globulins, and lower levels of serum albumin. In a stepwise logistic regression, only hyperglobulinemia was significantly associated with a false-positive anti-HIV. We conclude that: (a) ELISA tests for anti-HIV are useful for screening abusers of alcohol and parenteral drugs with chronic liver disease for HIV infection, but positive results must be confirmed with more specific tests such as Western blot; (b) false-positive ELISA reactions in this population are associated with hyperglobulinemia; and (c) studies of HIV testing are needed in other populations of patients with alcoholism or liver disease.
Alcohol Clin Exp Res 1988 Oct
PMID:Specificity of antibody tests for human immunodeficiency virus in alcohol and parenteral drug abusers with chronic liver disease. 306 17

Human immunoglobulin for intravenous (IV) use has an established safety record with regard to transmission of hepatitis B virus. The bulk of available evidence also suggests that the human immunodeficiency virus (HIV) is not transmitted by IV immunoglobulin. There has been one report, however, of isolation of HIV from two patients with hypogammaglobulinaemia who had been treated with several immunoglobulin products. Certain IV immunoglobulin products have transmitted non-A, non-B (NANB) hepatitis but careful clinical assessment of recipients of other products suggests that non-infective preparations can be made. Interpretation of available data most likely to be correct is that contamination with NANB is reduced but not eliminated by cold-ethanol fractionation and that the use of further virucidal procedures in the finishing of immunoglobulin products will confer a higher degree of safety.
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PMID:The viral safety of intravenous immunoglobulin. 311 93


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