51
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Abstract
Procedures for inactivating rabies virus in reagents used for the fluorescent rabies antibody test are described. Mouse brain adsorbing suspensions containing greater than or equal to 10(9) 50% lethal doses of virus per ml were rendered noninfectious by treatment with 0.1% beta-propiolactone or by heating at 56 degrees for greater than or equal to 30 min. Viable virus in tissue impression smears was inactivated by acetone fixation at 50 degrees C for greater than or equal to 30 min or by immersion in 0.1% beta-propiolactone at 37 degrees C for 2 h. Inactivated reagents gave specific and sensitive reactions in the fluorescent rabies antibody test.
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52
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Chemical cocarcinogenesis with the use of a subclone derived from Balb/3T3 cells with catechol as cocarcinogen. J Natl Cancer Inst 1982; 69:503-8. [PMID: 6955549] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
This study was performed for the detection of cocarcinogens by transformation in vitro with the use of a subclone of a Balb/3T3 cell line. Dose response, cytotoxicity, and transformation studies were done with the use of an indirect-acting carcinogen, benzo[a]pyrene (B[a]P), a direct-acting alkylating carcinogen, beta-propiolactone (BPL), and the mouse skin cocarcinogen catechol. The rate of transformation was notably higher in groups treated with B[a]P and catechol or BPL and catechol than in groups treated with either B[a]P or BPL. Catechol alone did not induce any transformation. All the cells isolated from the transformed foci showed characteristics of malignantly transformed cells, such as anchorage-independent growth. Thus chemical cocarcinogenesis was accomplished in vitro similar to that accomplished in in vivo studies reported earlier on mouse skin.
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53
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Rabies vaccine (Babeş strain of fixed rabies virus) inactivated with beta propiolactone. ARCHIVES ROUMAINES DE PATHOLOGIE EXPERIMENTALES ET DE MICROBIOLOGIE 1981; 40:333-9. [PMID: 7340722] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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54
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Reactions of beta- propiolactone, beta-butyrolactone and gamma-butyrolactone with nucleic acids. Chem Biol Interact 1981; 34:323-31. [PMID: 6161710 DOI: 10.1016/0009-2797(81)90104-6] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Reactivity of beta-propiolactone, beta-butyrolactone and gamma-butyrolactone with guanosine, RNA, DNA and 4-(p-nitrobenzyl)pyridine was studied. beta-Propiolactone was 50--100 times more reactive with all the nucleophiles than beta-butyrolactone whereas gamma-butyrolactone was completely inactive. The rate of alkylation by the lactones was guanosine greater than RNA = denatured DNA greater than double-stranded DNA. The type of the adducts formed were characterized by fluorescence and ultraviolet spectroscopy. Similar alkylation products were formed by the two lactones. The main sites alkylated were N-1 at adenosine, N-3 at cytidine and N-7 at guanosine. The results suggest that the carcinogenic potency of the lactones correlates with their reactivity rather than with specificity of the adducts formed.
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55
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A clinical study of the tolerance and safety of a beta- propiolactone-treated immunoglobulin. ARZNEIMITTEL-FORSCHUNG 1981; 31:1928-1930. [PMID: 6797445] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
In an open clinical study, 31 healthy volunteers were each given three i.v. infusions of 50 ml of a immunoglobulin preparation (Intraglobin) from three different production batches. During a 35-week observation period every three weeks blood specimens were drawn from the participants and analysed for serological (HBsAg, anti-HBs, anti-HBc, HBeAg and anti-HBe) and clinico-chemical parameters of hepatitis (SGOT, SGPT, gamma-GT and bilirubin levels). In no case evidence of the development of hepatitis arose, nor did the participants suffer from any side-effects during or after the infusions. Ten out of the 31 subjects then received another 150 ml infusion followed by an intradermal application of the new immunoglobulin in a 1:10 dilution four weeks later. No signs of immediate or delayed hypersensitivity reactions could be observed in the volunteers.
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56
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Abstract
The reaction of deoxyadenosine with beta-propiolactone produces two derivatives. One is 1-(2-carboxyethyl)-2'-deoxyadenosine (CEdA) first described by Maté, et al. The proposed structure for the other is 3-(beta-D-2-deoxyribosyl)-7,8-dihydropyrimido-[2,l-i]purine-9-one (dDPP). Spectral characteristics of both compounds are presented. These include u.v. spectra of each in acidic, neutral and alkaline solutions, i.r. spectra, fluorescence spectra, and n.m.r. spectra. The extinction coefficient for CEdA is 12,900 M--1cm--1 at 258 nm and that for dDPP is 12,400 M--1cm--1 at 305 nm. The dDPP can be converted to CEdA by mild acid hydrolysis, and the CEdA can be converted to dDPP by reaction with a carbodiimide derivative. When poly A was reacted with beta-propiolactone, the yield of dDPP in the polymer was 7-9%. When double-stranded DNA was alkylated by [3H]beta-propiolactone at relatively high concentrations and then acid hydrolyzed to separate 1-(2-carboxyethyl)adenine (CEA) and 7-(2-carboxyethyl)guanine (CEG), a CEA to CEG ratio of up to 0.62 was obtained. With relatively low concentrations of [3H]beta-propiolactone, the yield of CEA was low with double-stranded DNA but was 5--6 fold greater with single-stranded DNA.
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57
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Esolation of 3-(2-carboxyethyl)thymine following in vitro reaction of beta- propiolactone with calf thymus DNA. Chem Biol Interact 1980; 29:335-46. [PMID: 6892614 DOI: 10.1016/0009-2797(80)90152-0] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
3-(2-Carboxyethyl)thymine (3-CET) was synthesized from beta-propiolactone (BPL) and dThd 5'P at pH 9.0--9.5 via the intermediate 3-(2-carboxyethyl)-thymidine-5'-monophosphoric acid (3-CEdThd5'P). 3-CEdThd5'P was converted to 3-CET by hydrolysis in 1.5 N HCl at 100 degrees C for 2 h. The structure of 3-CET was assigned on the basis of UV spectra, electron impact (EI) and isobutane chemical ionization mass spectra and the EI mass spectrum of a trimethylsilyl derivative of 3-CET. BPL was reacted in vitro with calf thymus DNA at pH 7.5. 100 A units of BPL-reacted DNA yielded, following perchloric acid hydrolysis and preparative paper chromatography, 3 A units of 3-CET. Reaction of BPL with the phosphodiester thymidylyl-(3'-5')-thymidine gave 3-(2-carboxyethyl)thymidylyl-(3'-5')-3-(2-carboxyethyl)-thymidine (approximately 3%). Phosphotriester formation was not detected.
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58
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[Obtaining protein fractions from human blood which are safe from the viewpoint of hepatitis transmission]. VNITRNI LEKARSTVI 1980; 26:59-62. [PMID: 6766595] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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59
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In vitro Dimroth rearrangement of 1-(2-carboxyethyl) adenine to N6-(2-carboxyethyl)adenine in single-stranded calf thymus DNA. Chem Biol Interact 1979; 28:333-44. [PMID: 45009 DOI: 10.1016/0009-2797(79)90173-x] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The new adduct N6-(2-carboxyethyl)adenine (N6-CEA) was prepared from 1-(2-carboxyethyl)adenine (1-CEA) by base catalyzed (Dimroth) rearrangement of 1-CEA. The structure of N6-CEA was assigned on the basis of UV spectra and electron impact and isobutane chemical ionization mass spectra. When the carcinogen beta-propiolactone was reacted in vitro with calf thymus DNA, 1-CEA but not N6-CEA was detected on paper chromatograms following acid hydrolysis of the DNA. When BPL-reacted single-stranded DNA was incubated at pH 11.7 (37 degrees C, 18 h) prior to acid hydrolysis, it was found that 1-CEA was completely converted to N6-CEA in DNA by Dimroth rearrangement, whereas no conversion occurred at pH 7.5. The extent of Dimroth rearrangement at various pHs and temperatures was determined for 1-CEA, 1-methyladenine (1-MeA), 1-(2-carboxyethyl)-deoxyadenosine-5'-monophosphoric acid (1-CEdAdo5'P) and the phosphodiester 5'-O-(2-carboxyethyl)phosphono-1-(2-carboxyethyl)deoxyadenosine (1-CE-Ado-5'-P-CE).
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60
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A safe method for preparation of arbovirus antigens. INDIAN JOURNAL OF EXPERIMENTAL BIOLOGY 1979; 17:94-5. [PMID: 468326] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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61
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Phosphate diester formation following reaction of beta- propiolactone with thymidine-5'-monophosphoric acid. Chem Biol Interact 1978; 21:249-61. [PMID: 679399 DOI: 10.1016/0009-2797(78)90023-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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62
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Preparation and use of a stable, inactivated Rift Valley fever antigen. JOURNAL OF BIOLOGICAL STANDARDIZATION 1978; 6:45-50. [PMID: 24056 DOI: 10.1016/s0092-1157(78)80032-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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63
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[Concentration of intravenously administered gammaglobulin preparations in dog skin (author's transl)]. Arch Dermatol Res 1977; 260:201-6. [PMID: 74982 DOI: 10.1007/bf00561414] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Chemical modification of standard gammaglobulin with enzyme treatment (pepsin) or stabilization (beta-propiolactone) is able to influence elimination, fragmentation and organ distribution of intravenously administered gammaglobulins as shown in 36 dogs after i.v. application of allogenic and xenogenic gammaglobulin preparations. Pepsin-gammaglobulin was eliminated and fragmented most rapidly. Gammaglobulin concentrations of all preparations in the skin showed as slower decrease than comparable blood concentrations. The highest skin concentrations 10 days after i.v. application were found for beta-propiolactone gammaglobulin with 6.2 +/- 1.6 microgram/g compared to a blood level of 7.9 +/- 0.9 microgram/ml.
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64
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Abstract
The safety and immunogenicity of inactivated porcine parvovirus (PPV) vaccines were investigated. Both beta-propiolactone and formalin successfully inactivated virus without destroying immunogenicity, which was considerably enhanced by incorporation of a gel adjuvant in the vaccine. Using the formalised-gel vaccine, initial antibody responses were demonstrated in susceptible piglets and adult pigs at 7 days after vaccination. These antibody responses persist at significant levels for at least 6 months after vaccination. Antibody levels increased up to 16 fold when revaccination was carried out. Vaccination of gilts with low level (passive) immunity resulted in antibody responses comparable to those recorded in susceptible pigs. The vaccine was safe as determined by absence of residual virus in the vaccine, absence of viraemia and excretion in vaccinted stock, and absence of effect on litters of sows vaccinated at different gestational ages. Vaccine stored at 4 degrees C for 6 months was as immunogenic as fresh vaccine.
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65
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The assay of influenza virus structural antigens in vaccines by rocket immunoelectrophoresis. DEVELOPMENTS IN BIOLOGICAL STANDARDIZATION 1977; 39:201-8. [PMID: 604098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The internally situated influenza virus structural antigens (matrix and nucleoprotein) and the glycoprotein hemagglutinin were assayed using rocket immunoelectrophoresis or single radial diffusion following disruption of purified virus with 1% w/v sodium sarcosyl detergent. Electrophoresis was carried out for 1-4 h in 0.05 M barbitone buffer at pH 8.6. The potency estimations of HA and M activity were similar for the two methods for bivalent beta-propiolactone inactivated whole virus vaccines.
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66
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Experience with monovalent and bivalent influenza vaccines in Canada 1976. DEVELOPMENTS IN BIOLOGICAL STANDARDIZATION 1977; 39:209-12. [PMID: 564310] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Laboratory examination of vaccines from four manufacturing companies and prepared with A/New Jersey/8/76 and A/Victoria/3/75 strains (clinical results, cf. these proceedings, pp. 267-272). When diluting the concentrated suspensions of vaccine, loss of activity can be avoided by adding a small amount of Tween 80 to the diluent.
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67
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[Cyclization reactions of N-monosubstituted thioreas with 1,3-reactive derivatives of propionic acid (author's transl)]. Arch Pharm (Weinheim) 1977; 26:273-85. [PMID: 860896 DOI: 10.1002/ardp.19773100402] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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68
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Zonal-centrifuged human diploid cell rabies vaccine. DEVELOPMENTS IN BIOLOGICAL STANDARDIZATION 1976; 37:267-71. [PMID: 801472] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
In order to reduce the risk of allergic reactions, a purified human diploid cell culture rabies vaccine was developed. Pitman-Moore strain of rabies was propagated in WI-38 or MRC-5 cells. Both cell strains were found to be equally suitable for pro agation of rabies virus. The virus was purified and concentrated by continuous-flow sucrose density gradient ultracentrifugation. Virus peak fractions were diluted with a stabilized and then inactivated with BPL and freeze-dried. According to the standard NIH test for potency, the vaccine proved to be very potent and stable. The results of initial clinical applications of the vaccine will be presented.
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69
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In vitro acylation of the xi-amino group of L-lysine in calf thymus histones by the carcinogen, beta- propiolactone. Chem Biol Interact 1976; 15:319-26. [PMID: 1009630 DOI: 10.1016/0009-2797(76)90137-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
We had previously reported that the carcinogen, beta-propiolactone (BPL) reacted in vitro with histones in whole mouse skin chromatin and that among the histone classes BPL was preferentially bound to the lysine-rich histones H1 and H1 degrees. In order to determine if in vitro reaction of BPL with calf thymus histones resulted in binding of BPL to L-lysine, we synthesized the model compounds XI-N-(3-hydroxypropionyl)lysine (HPL) and xi-N-(I-carboxyethyl)lysine (CEL) from BPL and L-lysine. The alpha-amino group of L-lysine was protected from reaction with BPL by the formation of a copper chelate. Structures were assigned on the basis of infrared spectra, pKa values and chemical analyses. BPL was reacted in vitro with calf thymus histones and the BPL-reacted calf thymus histones and control calf thymus histones were digested with trypsin followed by pronase. The respective digests were each chromatograhed on a column of AA-15 cation-exchange resin. The elution profiles of the two digests were very similar except for the appearance of a new ninhydrin-positive peak (NNPP) in the eluate of the trypsin-pronase digest of BPL-reacted calf thymus histones. When compounds HPL and CEL were added to the trypsin-pronase digest of control calf thymus histones and the mixture chromatographed on AA-15, both compounds were resolved from the other peptide (or amino acid) peaks. HPL was eluted in the same fractions as NNPP, HPL and NNPP exhibited identical RF values on silica gel TLC with acidic, alkaline and neutral solvents. CEL was not identified as a product of the reaction between BPL and calf thymus histones.
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70
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Detection of different types of damage in alkylated DNA by means of human corrective endonuclease (correndonuclease). Proc Natl Acad Sci U S A 1976; 73:2629-33. [PMID: 1066672 PMCID: PMC430701 DOI: 10.1073/pnas.73.8.2629] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
Corrective endonuclease (correndunclease) activity of HeLa cells was assayed with alkylated DNA. Double-stranded, covalently closed DNA from phage PM II was treated with methyl methanesulfonate, N-methyl-N-nitrosourea, beta-propiolactone, or diepoxybutane to introduce alkylated bases and alkali-labile sites into the DNA. The damaged DNA was incubated with an extract of HeLa cells that catalyzes the formation of breaks at apurinic sites in double-stranded DNA. Methylated DNA was broken at every alkali-labile site by the HeLa correndonuclease, which indicated that these sites are similar to the apurinic sites produced by heating at acid pH. DNA alkylated with beta-propiolactone or diepoxybutane containing the same number of alkali-labile sites was broken to a far lesser extent. This indicates the presence of a second type of alkali-labile damage that is correndonuclease-insensitive.
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71
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[Prophylaxis and therapy with gamma globulin. General characterization and clinical use of gamma globulin preparations]. SCHWEIZERISCHE MEDIZINISCHE WOCHENSCHRIFT 1976; 106:533-42. [PMID: 62393] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
For accurate evaluation of the usefulness of gamma-globulin treatment, the clinical indications for passive immune prophylaxis and immunotherapy and the specific characteristics of commercially available gamma-globulin preparations have to be considered. Detailed investigations of currently used gamma-globulin preparations have shown that as yet no ideal product is available. Classical standard gamma-globulin and, in particular, enzymatically treated (Gamma-Venin, Veinoglobuline) or chemically modified preparations (Gamma-Globulin i.v. SRK, Intraglobin) for intravenous use have some deficiencies and involve potential risks for the patient. Nor is the infusion of "fresh frozen plasma" a safe and generally applicable alternative to the use of gamma-globulin concentrates. Thus from the outset the preconditions for effective treatment with gamma-globulin are not optimal. Standard and hyperimmune preparations, given once intramuscularly, are suitable for the prophylaxis of viral and bacteriotoxic diseases. In patients apt to react abnormally it is important to distinguish clearly between the few accepted indications and those that are more doubtful. Anti-D immunoglobulin is essential for the prevention of Rhesus sensitization after the delivery of a Rhesus-positive child. In general, gamma-globulin is recommended for substitution therapy and for the prophylaxis of recurrent acute bacterial infections in patients suffering from transient, congenital and acquired antibody-deficiency states. In such cases, high doses of an intravenously administrable preparation with a relatively long biologic half-life are recommended. The evidence for the effectiveness of gamma-globulin treatment of bacterial infections in patients without manifest disturbance of humoral immunity is equivocal. This is true, for example, of the oft-recommended combined use of antibiotics and high doses of intravenous gamma-globulin which is said to provide optimum antibacterial and antitoxic protection. There is even less chance of obtaining beneficial effects if gamma-globulin is given as an "ultimo ratio" in severe generalized bacterial infections resistant to antibiotic treatment. Localized and predominantly chronic infections are barely influenced by gamma-globulin. It is still too early to make a final assessment regarding the place and value of immunoglobulin concentrates for prophylactic and therapeutic purposes. This will only be possible if a preparation becomes available which contains all immunoglobulins in a biologically optimum state and concentration, is well tolerated and can be given in adequate doses both intramuscularly and intravenously.
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72
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Immunopathogenicity and oncogenicity of murine leukemia viruses. II. Infection of mice and rats with Scripps leukemia virus. THE AMERICAN JOURNAL OF PATHOLOGY 1976; 82:299-314. [PMID: 175661 PMCID: PMC2032395] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The pathologic consequences of infection of newborn mice and rats with MuLV (Scripps leukemia virus--SLV) were observed. Serum MuLV p30 concentrations of most strains were elevated 20 to 100 times that of controls while MuLV gp70 levels were elevated only 1.1 to 14.8 times, probably reflecting in part the higher concentrations of gp70 in control sera but also indicating the lack of parallelism in regulation of synthesis of these two viral antigens. Infected mice of most strains developed immunologic diseases, including antinuclear antibody and glomerulonephritis, but not Coombs' antibodies. The nature and severity of the immunologic disease varied considerably, depending upon the genetic character of the host. Most infected animals developed lymphatic leukemias, but four strains showed partial to complete resistance to SLV oncogenesis: BALB/c (nude); C57 Bl/6; (NZB times NZW) F1, and (NZW times BALB/c) F1.
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MESH Headings
- Animals
- Antibodies, Viral
- Antibody Formation
- Female
- Glomerulonephritis/immunology
- Glomerulonephritis/pathology
- Leukemia Virus, Murine/immunology
- Leukemia Virus, Murine/metabolism
- Leukemia Virus, Murine/pathogenicity
- Leukemia, Experimental/immunology
- Leukemia, Experimental/pathology
- Leukemia, Lymphoid/immunology
- Leukemia, Lymphoid/pathology
- Mice
- Mice, Inbred AKR
- Mice, Inbred BALB C
- Mice, Inbred C57BL
- Mice, Inbred NZB
- Oncogenic Viruses/immunology
- Oncogenic Viruses/pathogenicity
- Propiolactone
- Rats
- Rats, Inbred BN
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73
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Neutralizing and complement-fixing antibody responses in pre- and post-exposure vaccinees to a rabies vaccine produced in human diploid cells. JOURNAL OF BIOLOGICAL STANDARDIZATION 1976; 4:249-62. [PMID: 825515 DOI: 10.1016/s0092-1157(76)80010-8] [Citation(s) in RCA: 27] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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74
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[Sterilization of the serum of convalescents with beta propiolactone]. VETERINARIIA 1975:109-10. [PMID: 1216618] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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75
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[Concentration of antibody to arboviruses in mouse immune ascitic fluid]. Vopr Virusol 1975:491-4. [PMID: 1240698] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
A method for increasing titers of antibody in mouse immune ascitic fluids by twostep concentration of defibrinized ascitic fluids by means of the cryomethod and lyophilization has been developed. Antibody titers increased 8-32-fold.
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76
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Inactivation and freeze-drying of a purified vaccinia virus grown on chick embryo membranes. ZEITSCHRIFT FUR IMMUNITATSFORSCHUNG, EXPERIMENTELLE UND KLINISCHE IMMUNOLOGIE 1972; 143:333-43. [PMID: 4282918] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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77
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Planetary quarantine. Sterilization of space hardware. ENVIRONMENTAL BIOLOGY AND MEDICINE 1971; 1:63-81. [PMID: 5006248] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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78
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VACCINATION AGAINST AVIAN ENCEPHALOMYELITIS WITH A BETA PROPIOLACTONE INACTIVATED VACCINE. Vet Rec 1965; 77:335-7. [PMID: 14320635] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/26/2023]
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79
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COMPARATIVE EVALUATION OF THE POTENCY OF BETA- PROPIOLACTONE INACTIVATED NEWCASTLE DISEASE VACCINES PREPARED FROM A LENTOGENIC STRAIN AND A VELOGENIC STRAIN. Vet Rec 1965; 77:127-9. [PMID: 14330191] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/26/2023]
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80
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BETA- PROPIOLACTONE DECONTAMINATION OF SIMIAN VIRUS-40 AS DETERMINED BY A RAPID FLUORESCENT-ANTIBODY ASSAY. Appl Microbiol 1965; 13:70-2. [PMID: 14264849 PMCID: PMC1058192 DOI: 10.1128/am.13.1.70-72.1965] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
beta-Propiolactone vapor treatment of vaccine production facilities has been shown to be approximately 90% effective in the elimination of large quantities of Simian virus-40 (SV(40)). The use of a rapid fluorescent-antibody assay for the detection of SV(40) was also studied.
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81
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INACTIVATION OF THE INFECTIVITY OF VIRAL HEMAGGLUTINATING ANTIGENS WITH THE USE OF BETAPRONE. THE JOURNAL OF LABORATORY AND CLINICAL MEDICINE 1964; 64:983-8. [PMID: 14239962] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/25/2023]
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82
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[THE INFLUENCE OF BETA- PROPIOLACTONE ON BACTERIA AND VIRUSES. 1. INACTIVATION]. ARZNEIMITTEL-FORSCHUNG 1964; 14:1254-7. [PMID: 14320706] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/26/2023]
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83
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A BETA- PROPIOLACTONE STERILIZED MILK FORMULA FOR SPECIFIC PATHOGEN-FREE PIGS. LABORATORY ANIMAL CARE 1964; 14:382-7. [PMID: 14212338] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/25/2023]
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84
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A TEN YEAR CLINICAL STUDY OF PLASMA TREATED WITH BETAPRONE AND COMBINED BETAPRONE PLUS ULTRAVIOLET IRRADIATION. COMPARISON WITH PRESENT METHODS OF TREATMENT. PACIFIC MEDICINE AND SURGERY 1964; 72:298-302. [PMID: 14208310] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/25/2023]
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85
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[STUDY OF ANTIBODY RESPONSE TO ANTIMEASLES VACCINE KILLED WITH BETA- PROPIOLACTONE IN THE GUINEA PIG AND IN GROUPS OF INFANTS BETWEEN 1 AND 24 MONTHS OF AGE]. RIVISTA DELL'ISTITUTO SIEROTERAPICO ITALIANO 1964; 39:374-84. [PMID: 14187848] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/25/2023]
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86
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USE OF BETA- PROPIOLACTONE IN PREPARATION OF INACTIVATED ARBOVIRUS SEROLOGIC TEST ANTIGENS. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 1964; 92:772-8. [PMID: 14170419] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/25/2023]
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87
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[USE OF BETA- PROPIOLACTONE FOR THE STERILIZATION OF SOME TISSUE GRAFTS]. ORTOPEDIIA TRAVMATOLOGIIA I PROTEZIROVANIE 1964; 25:33-6. [PMID: 14203551] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/25/2023]
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88
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Propiolactone Plus Ultraviolet-Treated Plasma Without Hepatitis. ARCHIVES OF SURGERY 1964; 88:721-4. [PMID: 14107028 DOI: 10.1001/archsurg.1964.01310220211032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
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89
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90
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BETA- PROPIOLACTONE PLUS ULTRAVIOLET IRRADIATED PLASMA. A CLINICAL EVALUATION FOR HEPATITIS, TOXICITY AND ALLERGY. BIBLIOTHECA HAEMATOLOGICA 1964; 19:644-7. [PMID: 14267084] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/26/2023]
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91
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[APPLICATION OF PRESERVED BONES STERILIZED IN BETA- PROPIOLACTONE, BASED ON 105 CASES]. Orv Hetil 1963; 104:2183-4. [PMID: 14106615] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/25/2023]
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92
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[INFLUENCE OF BETA PROPIOLACTONE ON THE RESPIRATION OF NORMAL AND NEOPLASTIC TISSUES]. Pathologica 1963; 55:273-87. [PMID: 14122876] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/25/2023] Open
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93
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[ACTION OF BETA PROPIOLACTONE ON THE RESPIRATION OF HUMAN RED BLOOD CELLS]. Pathologica 1963; 55:289-98. [PMID: 14122877] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/25/2023] Open
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94
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Virus Infected Erythrocytes Sterilized with Betaprone (BPL) I. Effect on in-vitro Storage and in-vivo Survival. Vox Sang 1963; 8:497-504. [PMID: 14059848 DOI: 10.1111/j.1423-0410.1963.tb04175.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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95
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A comparison of the immune response of chickens vaccinated with formalin- and beta- propiolactone-inactivated Newcastle disease vaccines. Am J Vet Res 1963; 24:827-31. [PMID: 14013488] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/25/2023]
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96
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Inactivation of vacuolating virus (SV 40) by betaprone. II. Evaluation of the oncogenic properties of SV 40 in hamsters after inactivation with betaprone. HENRY FORD HOSPITAL MEDICAL BULLETIN 1963; 11:93-7. [PMID: 13953266] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/24/2023]
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97
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[ACTION OF BETA PROPIOLACTONE ON PYOGENIC BACTERIA AND ON MYCOBACTERIUM TUBERCULOSIS. ITS USE FOR THE PURIFICATION OF PATHOLOGICAL PRODUCTS AND FOR THE PREPARATION OF CULTURE MEDIA FOR MYCOBACTERIA]. ANNALES DE L'INSTITUT PASTEUR DE LILLE 1963; 14:139-43. [PMID: 14202534] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/25/2023]
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98
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[Sterilization by beta- propiolactone of solid nutrient media for fungus culture]. MIKROBIOLOGIIA 1963; 32:143-7. [PMID: 13957059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/24/2023]
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99
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[POSSIBILITIES OF STERILIZATION OF BIOLOGICAL CULTURE-MEDIA INGREDIENTS WITH BETA- PROPIOLACTONE]. PATHOLOGIA ET MICROBIOLOGIA 1963; 26:515-23. [PMID: 14114125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/25/2023]
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100
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The effect of beta propiolactone on herpes simplex virus in vitro and in vivo. MEDICAL BULLETIN (ANN ARBOR, MICH.) 1962; 28:388-97. [PMID: 14000370] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/25/2023]
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