351
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Wong B, Gold JW, Brown AE, Lange M, Fried R, Grieco M, Mildvan D, Giron J, Tapper ML, Lerner CW. Central-nervous-system toxoplasmosis in homosexual men and parenteral drug abusers. Ann Intern Med 1984; 100:36-42. [PMID: 6691657 DOI: 10.7326/0003-4819-100-1-36] [Citation(s) in RCA: 212] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
Central-nervous-system toxoplasmosis developed in 7 of 269 patients with the acquired immunodeficiency syndrome reported to the New York City Health Department through July 1982. Focal neurologic abnormalities, mass lesions on computed-tomographic brain scans, lymphocytic cerebrospinal fluid pleocytosis, and detectable IgG antibody to Toxoplasma gondii were common; but IgG titers of 1:1024 or more, IgM antibody to T. gondii, and positive open brain biopsies were uncommon. Serologic findings suggested that the disease resulted from recrudescent rather than primary infection. Four of five patients improved when treated with sulfonamides and pyrimethamine, but 2 had relapses. An aggressive diagnostic approach and sometimes even empiric therapy are warranted when central-nervous-system toxoplasmosis is suspected in a seropositive patient with the acquired immunodeficiency syndrome.
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352
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Lange M. Searching for the bottom line via review. Tex Med 1983; 79:64-65. [PMID: 6636005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
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353
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Lange M, Le Guern C, Cazenave PA. Covalent coupling of antigens to chemically activated lipopolysaccharide: a tool for in vivo and in vitro specific B cell stimulation. J Immunol Methods 1983; 63:123-31. [PMID: 6604755 DOI: 10.1016/0022-1759(83)90215-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
A simple chemical method is described which creates cyanate groups on the saccharide core of bacterial lipopolysaccharide (LPS). The activated LPS molecule is stable at pH 3.5 and can be kept for months at -20 degrees C without loss of properties. The strong reactivity of the cyanate groups permits efficient covalent coupling of various molecules to LPS. This is done under non-denaturing conditions. This paper also describes the coupling of microquantities of antigen (5-10 micrograms) to LPS. The 'LPS-antigen' conjugates are easily purified upon centrifugation at 15,000 X g. These compounds are mitogenic for B cells and trigger in vivo or in vitro production of antibodies directed against the coupled antigen. In vitro, a concentration of conjugate as low as 10(-2) micrograms/ml triggers specific antibody synthesis. Injection of 5 micrograms of conjugate in mice induces a humoral response detectable 7 days after immunization. B cells cultured for 5 days with an adequate dose of the LPS-beta-galactosidase conjugate were fused with the Sp2-0-Ag cell line to give anti-beta-galactosidase hybridomas.
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354
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Buimovici-Klein E, Tinker MK, O'Beirne AJ, Lange M, Cooper Z. IgM detection by ELISA in the diagnosis of cytomegalovirus infections in homosexual and heterosexual immunosuppressed patients. Arch Virol 1983; 78:203-12. [PMID: 6318694 DOI: 10.1007/bf01311315] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
A new commercially developed cytomegalovirus (CMV)-IgM ELISA was found to be sensitive and specific when compared with sucrose gradient fractionation of Ig classes in CMV antibody-positive and negative sera. The presence of CMV IgM in patients' sera correlated with positive virus isolation from circulating mononuclear blood cells and urine. Serial examinations of patients with primary or recent CMV infection revealed a typical sequence of IgM and IgG development. The frequency of CMV isolation declined as the concentration of IgM decreased and the IgG levels increased. Since the isolation of CMV from clinical specimens is a cumbersome procedure, we suggest that the IgM ELISA could provide rapid and valuable information on the presence of an active or reactivated CMV infection.
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355
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356
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357
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Lange M. Benevolent fund aids needy physicians, families. Tex Med 1983; 79:71-2. [PMID: 6836540] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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358
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Pollard H, Pachot I, Schwartz JC, Lange M, Legrain P, Buttin G. [Production of anti-L-histidine decarboxylase monoclonal antibodies]. COMPTES RENDUS DES SEANCES DE L'ACADEMIE DES SCIENCES. SERIE III, SCIENCES DE LA VIE 1983; 297:553-556. [PMID: 6424875] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Hybridomas secreting monoclonal antibodies directed against Rat gastric L-histidine decarboxylase (H.D.) have been obtained from a partially purified preparation and screened by immunoprecipitation of the enzyme activity. They cross react with Rat brain H.D., indicating at least that these two enzymes share common antigenic determinants.
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359
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Bezwoda WR, Derman D, De Moor NG, Lange M, Levin J. Treatment of metastatic breast cancer in estrogen receptor positive patients. A randomized trial comparing tamoxifen alone versus tamoxifen plus CMF. Cancer 1982; 50:2747-50. [PMID: 6754067 DOI: 10.1002/1097-0142(19821215)50:12<2747::aid-cncr2820501209>3.0.co;2-y] [Citation(s) in RCA: 28] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
In a controlled clinical trial, 52 patients with ER positive metastatic breast cancer were randomly assigned to receive initial treatment with either tamoxifen alone followed by sequential cyclophosphamide, methotrexate, and 5-fluorouracil (CMF) after tumour progression of concurrent tamoxifen plus CMF, All 52 patients entered are eligible and 50 patients were currently assessable. Response rates (CR + PR) were similar for the two treatment groups (15/24 tamoxifen alone, 17/26 tamoxifen + CMF). The median durations of survival for the two treatment groups 17.7 months and 17.1 months were also not significantly different. Significant correlations were found between level of ER and response rate and also between level of ER and response duration. From the result of this investigation it would appear that there is no advantage to the addition of chemotherapy prior to an adequate trial of hormone therapy in patients with metastatic ER positive breast cancer.
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360
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Grieco MM, Lange M, Daniels JA, Den M, Amaram N, Kornfeld H. Single-blind controlled study of ceftizoxime and cefamandole in the treatment of community-acquired pneumonia. J Antimicrob Chemother 1982; 10 Suppl C:223-5. [PMID: 6296010 DOI: 10.1093/jac/10.suppl_c.223] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
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361
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Lange M. Data bases, AV collection highlight extensive TMA library services. Tex Med 1982; 78:34-6. [PMID: 6184791] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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362
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Baethmann A, Kempski O, Unterberg A, Maier-Hauff K, Lange M, Schürer L. [Origin and therapy of secondary cerebral damage]. MMW, MUNCHENER MEDIZINISCHE WOCHENSCHRIFT 1982; 124:941-4. [PMID: 6815518] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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363
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364
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Lange M. A Florence Nightingale for the Third World? HEALTH VISITOR 1982; 55:413-416. [PMID: 6922110] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
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365
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Masur H, Michelis M, Greene J, Onorato I, Vande Stouwe R, Holzman R, Wormser G, Brettman L, Lange M, Murray H, Cunningham-Rundles S. An Outbreak of Community-Acquired Pneumocystis Carinii Pneumonia. Initial Manifestation of Cellular Immune Dysfunction. J Urol 1982. [DOI: 10.1016/s0022-5347(17)52960-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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366
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Zesch A, Nitzsche K, Lange M. Demonstration of the percutaneous resorption of a lipophilic pesticide and its possible storage in the human body. Arch Dermatol Res 1982; 273:43-9. [PMID: 6191722 DOI: 10.1007/bf00509026] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
The kinetics of lindane concentration in the serum and the time-dependent urinary excretion of two groups, one with healthy subjects and one with scabies-infested subjects, were comparatively analyzed by gas chromatography. Both groups showed similar cumulative excretion curves at completely different lindane concentrations in the serum. Comparison of serum concentration in healthy females (high lindane concentration in serum) and healthy males (low serum concentration) to the urinary excretion showed similar results. There appears to be a serum 'threshold concentration', above which it is possible that lindane is no longer primarily excreted by the kidney. Based on these results recommendations are presented, for the practical use of such data in the treatment of scabies.
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367
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Masur H, Michelis MA, Greene JB, Onorato I, Stouwe RA, Holzman RS, Wormser G, Brettman L, Lange M, Murray HW, Cunningham-Rundles S. An outbreak of community-acquired Pneumocystis carinii pneumonia: initial manifestation of cellular immune dysfunction. N Engl J Med 1981; 305:1431-8. [PMID: 6975437 DOI: 10.1056/nejm198112103052402] [Citation(s) in RCA: 787] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Eleven cases of community-acquired Pneumocystis carinii pneumonia occurred between 1979 and 1981 and prompted clinical and immunologic evaluation of the patients. Young men who were drug abusers (seven patients), homosexuals (six), or both (two) presented with pneumonia. Immunologic testing revealed that absolute lymphocyte counts, T-cell counts, and lymphocyte proliferation were depressed, and that humoral immunity was intact. Of the 11 patients, one was found to have Kaposi's sarcoma, and another had angioimmunoblastic lymphadenopathy. Eight patients died. In the remaining three, no diagnosis of an immunosuppressive disease was established, despite persistence of immune defects. These cases of pneumocystosis suggest the importance of cell-mediated immune function in the defense against P. carinii. The occurrence of this infection among drug abusers and homosexuals indicates that these groups may be at high risk for this infection.
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368
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Lange M, Nitzsche K, Zesch A. Percutaneous absorption of lindane in healthy volunteers and scabies patients. Dependency of penetration kinetics in serum upon frequency of application, time and mode of washing. Arch Dermatol Res 1981; 271:387-99. [PMID: 6174081 DOI: 10.1007/bf00406683] [Citation(s) in RCA: 28] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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369
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Gold JW, Poston W, Mertelsmann R, Lange M, Kiehn T, Edwards F, Bernard E, Christiansen K, Armstrong D. Systemic infection with Trichosporon cutaneum in a patient with acute leukemia: report of a case. Cancer 1981; 48:2163-7. [PMID: 7296474 DOI: 10.1002/1097-0142(19811115)48:10<2163::aid-cncr2820481008>3.0.co;2-t] [Citation(s) in RCA: 43] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
A case of disseminated infection with Trichosporon cutaneum, a fungus that causes white piedra, is described. The patient, a 58-year-old barber with acute leukemia, had fever, myalgias and skin lesions. He was receiving cytotoxic drug therapy and prednisone, was severely neutropenic and was being treated with broad spectrum antibiotics. Blood cultures and a biopsy of the skin lesion grew T. cutaneum. He died despite amphotericin B therapy. At autopsy, widespread infection with T. cutaneum was present. T. cutaneum is another fungus capable of causing widespread systemic disease in the immunocompromised host.
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370
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Baethmann A, Maier-Hauff K, Kempski O, Unterberg A, Lange M, Gross U. [Brain edema and consciousness]. ZFA. ZEITSCHRIFT FUR ALLGEMEINMEDIZIN 1981; 57:2121-6. [PMID: 7314844] [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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371
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Weiser B, Lange M, Fialk MA, Singer C, Szatrowski TH, Armstrong D. Prophylactic trimethoprim-sulfamethoxazole during consolidation chemotherapy for acute leukemia: a controlled trial. Ann Intern Med 1981; 95:436-8. [PMID: 7025721 DOI: 10.7326/0003-4819-95-4-436] [Citation(s) in RCA: 62] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
Abstract
We conducted a prospective, controlled, randomized trial of oral trimethoprim-sulfamethoxazole treatment in patients with acute leukemia receiving consolidation chemotherapy. We followed 14 treatment patients during 33 episodes and 15 control patients during 34 episodes of granulocytopenia (less than 1000 granulocytes/mm3). We found no significant difference in the incidence of febrile episodes (13 in treatment group versus 14 in control group), hospitalizations to treat fever or infection (10 versus 12), number of documented infections (eight versus 10), number of septicemias (one versus two), or mean duration of hospital stay to treat fever or infection (8.9 versus 9.2 days) in the two groups. There was little colonization with organisms resistant to trimethoprim-sulfamethoxazole, including Candida, in either group. Prophylactic trimethoprim-sulfamethoxazole did not significantly reduce the incidence of fever, hospitalization, or infection in granulocytopenic patients during consolidation chemotherapy.
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372
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Lange M, May E, May P. Ability of nonpermissive mouse cells to express a simian virus 40 late function(s). J Virol 1981; 38:940-51. [PMID: 6264164 PMCID: PMC171232 DOI: 10.1128/jvi.38.3.940-951.1981] [Citation(s) in RCA: 24] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
Mouse cells are fully nonpermissive for simian virus 40 (SV40). Infection does not lead to detectable virus replication. In this report, it was shown, first, that spliced 16S and 19S SV40 late mRNA were present in cytoplasmic and polysomal polyadenylated acid+ RNA preparations from SV40-infected baby mouse kidney cells. The 16S and 19S SV40 late mRNA's produced in infected baby mouse kidney cells were identical to or similar to the 16S and 19S SV40 late mRNA's produced in permissive monkey cells as judged by their S1 mapping patterns performed with the late strand of HpaII-BamHI fragment B and by their sedimentation patterns in a sucrose gradient. It was also shown that the 16S late mRNA from infected baby mouse kidney cells could be translated into a polypeptide which was identical to or similar to virion protein VP1 in every aspect examined, including the patter of peptide mapping by limited proteolysis. Second, we reported that mouse kidney cells produced detectable, although low, levels of SV40 virion protein VP1, as shown by the sodium dodecyl sulfate-polyacrylamide gel autoradiogram of [35S]methionine-labeled proteins immunoprecipitated by a rabbit antiserum directed against SV40 virion proteins. Third, it was reported that infected baby mouse kidney cells produced late mRNA's either (i) when the infection was done at a restrictive temperature with the nonleaky tsA58 mutant or (ii) in cells treated with 100 microgram of cycloheximide per ml, in which large T antigen synthesis was inhibited by more than 99.9%. This suggested that large T antigen was not required for the synthesis of late mRNA in mouse cells.
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373
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Savage N, Levin J, De Moor NG, Lange M. Cytosolic oestrogen receptor content of breast cancer tissue in blacks and whites. S Afr Med J 1981; 59:623-4. [PMID: 7221780] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023] Open
Abstract
We have examined the oestradiol receptor (ER) content of cytosols from 560 Black and White patients. The tumours from the White group contained a significantly lower proportion on ER-negative tumors (35.4%) compared with those from the Black group (46.5%). The proportion of ER-positive tumours is significantly greater in the post- than in th premenopausal White group. The frequencies of ER-positive tumours in the post- and premenopausal Black groups are not significantly different, resembling the situation described by others in Japanese women.
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374
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Lange M, Battioni JP, Mansuy D, Lexa D, Saveant JM. Comparison of u.v.–visible spectra of iron(I)–porphyrin– and iron(II)–porphyrin (thiolato)-(thiocarbonyl) and -(carbene) complexes. Relevance to ferrous cytochrome P450 complexes. ACTA ACUST UNITED AC 1981. [DOI: 10.1039/c39810000888] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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375
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Suárez HG, Lange M, Cassingena R. Enhancement of transcription of the SV40 genome in mouse embryo cells by pretreatment with 5-iodo-2'-deoxyuridine. J Gen Virol 1981; 52:135-9. [PMID: 6267169 DOI: 10.1099/0022-1317-52-1-135] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
Treatment of mouse embryo (ME) cells with 5-iodo-2'-deoxyuridine (IdUrd) before infection with SV40 virus, enhances T-antigen (T-Ag) production as detected by immunofluorescence and complement fixation. Cellular DNA and RNA synthesis are inhibited in both SV40 and mock-infected cells after IdUrd treatment. The analogue pretreatment significantly increases the amount of radiolabelled nuclear and cytoplasmic SV40-specific RNA and the RNA polymerase activity of the viral transcriptional complexes of the Sarkosyl supernatants, suggesting that the enhancement of SV40 T-Ag production in infected pretreated ME cells results from an increased synthesis of early virus RNA.
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376
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Bezwoda WR, Derman D, Zaltzman M, de Moor NG, Lange M. Tamoxifen and hypercalcaemia. A case report. S Afr Med J 1980; 58:821-2. [PMID: 6255614] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
A patient is reported in whom hypercalcaemia developed when adjuvant hormonal treatment with tamoxifen (Nolvadex) was instituted. The response to withdrawal of the drug and the recurrence of hypercalcaemia on rechallenge with tamoxifen make a causal relationship between hypercalcaemia and tamoxifen therapy probable. Some of the mechanisms of development of hypercalcaemia in cases of breast carcinoma are discussed, and the literature on hypercalcaemia and tamoxifen therapy is reviewed.
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377
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Puvion-Dutilleul F, Pedron J, Lange M. In situ study of SV40 virus DNA in lytic infection by mild loosening of nucleoproteins. J Gen Virol 1980; 51:15-31. [PMID: 6257831 DOI: 10.1099/0022-1317-51-1-15] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
We have studied SV40 (simian virus40) nucleoprotein in permissively infected monkey kidney cell cultures (CV1) by a procedure which does not require the isolation of the SV40 chromosomes. Treatment of the cells by a low ionic strenght medium containing Photo flo produces a mild loosening of nucleoproteins, and permits the in situ study in ultrathin sections of virus components and their relationships with host cell chromatin. RNP and DNP could be distinguished by uranyl-EDTA-lead staining (for RNP) and by DNase digestion. SV40 DNA was observed as circular molecules, either free or connected with either RNP fibrils or virus capsids. These three aspects were interpreted, respectively, as viral minichromosomes, transcription of virus genome and partially encapsidated virus DNA. During encapsidation a few virus particles appear to be bound to host chromatin. Many, if not all, seemingly mature viruses, singly or in small linear clusters, are also aligned on host chromatin. Some of these observations were corroborated by the Miller spreading technique. They are consistent with a role for the host cell chromatin in the production of nuclear viruses.
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378
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Lange M, Ross K. Ever wondered if the legislature rests? Look what happened in the interim. Tex Med 1980; 76:34-6. [PMID: 7444811] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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379
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Puvion E, Lange M. Functional significance of perichromatin granule accumulation induced by cadmium chloride in isolated rat liver cells. Exp Cell Res 1980; 128:47-58. [PMID: 7408986 DOI: 10.1016/0014-4827(80)90385-7] [Citation(s) in RCA: 37] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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380
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Middleton JR, Apuzzio J, Lange M, Sen P, Bonamo J, Louria DB. Post-cesarean section endometritis: causative organisms and risk factors. Am J Obstet Gynecol 1980; 137:144-5. [PMID: 6989246 DOI: 10.1016/0002-9378(80)90402-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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381
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Mansuy D, Chottard JC, Lange M, Battioni JP. On the nature and reactivity towards substrates of the active oxygen hemoprotein complexes involved in the reaction of peroxidases and cytochrome P- 450 with two-electron oxidants. ACTA ACUST UNITED AC 1980. [DOI: 10.1016/0304-5102(80)85019-x] [Citation(s) in RCA: 26] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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382
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May P, Kress M, Lange M, May E. New genetic information expressed in SV40-transformed cells: characterization of the 55K proteins and evidence for unusual SV40 mRNAs. COLD SPRING HARBOR SYMPOSIA ON QUANTITATIVE BIOLOGY 1980; 44 Pt 1,:189-200. [PMID: 6159133 DOI: 10.1101/sqb.1980.044.01.022] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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383
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Benedict WF, Lange M, Greene J, Derencsenyi A, Alfi OS. Correlation between prognosis and bone marrow chromosomal patterns in children with acute nonlymphocytic leukemia: similarities and differences compared to adults. Blood 1979; 54:818-23. [PMID: 289424] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
The chromosomal complement of 28 children with the diagnosis of acute nonlymphocytic leukemia (ANLL) were examined. An abnormal cytogenetic pattern was found in 50% of these patients, which is similar to the results in adults with ANLL. Unlike the reports in adult patients, however, no specific chromosomal changes were found. This observation may imply that the etiology and mechanisms by which abnormal clones develop in ANLL could differ significantly between children and adults. Those patients with chromosomal abnormalities in their initial bone marrow sample had a median survival of 7.1 mo, whereas those with a normal diploid pattern in their bone marrow had a median survival of 20.5 mo (1-sided, p = 0.04). If all metaphases were abnormal, the median survival was only 3 mo.
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384
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Bezwoda WR, de Moor NG, Derman D, Lange M, Saner R, Dando R. Combination chemotherapy of metastatic breast cancer: a randomized trial comparing the use of adriamycin to that of Vinblastine. Cancer 1979; 44:392-7. [PMID: 383254 DOI: 10.1002/1097-0142(197908)44:2<392::aid-cncr2820440204>3.0.co;2-d] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Two regimens of chemotherapy for metastatic breast cancer were compared in a randomized controlled fashion. Regimen 1 consisted of cyclophosphamide, vinblastine, methotrexate and 5-fluorouracil (CVMF). Regimen 2 consisted of cyclophosphamide, adriamycin, methotrexate and 5-fluorouracil (CAMF). The patient population consisted of both black and white postmenopausal females who had not received any prior chemotherapy. Objective responses were observed in 25/57 patients treated with CVMF and in 28/51 patients treated with CAMF. Neither race nor choice of chemotherapeutic regimen affected prognosis, although there were differences in the pattern of metastatic involvement between the two racial groups. The median duration of survival of patients who responded to therapy has not yet been reached but will be in excess of 12 months.
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385
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Lange M, May P. Effects of ethidium bromide on the production of ribosomal RNA in cultured mouse cells. Nucleic Acids Res 1979; 6:2863-77. [PMID: 88722 PMCID: PMC327899 DOI: 10.1093/nar/6.8.2863] [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] Open
Abstract
A treatment of primary mouse kidney cell cultures with 5 microM Ethidium Bromide (Eth Br) reduces the transcription of nuclear-coded genes and especially of ribosomal RNA genes. This effect was consistently observed when comparing drug-treated and control cells for (i), the incorporation of 3H uridine into total nuclear and B RNA polymerases as determined in isolated nuclei. It became more pronounced with exposure time; however, after removal of the drug, there was a progressive recovery of RNA synthesis culminating in the complete reversal of the drug effect. That this effect is probably not due only to the suppression of mitochondrial protein synthesis by the drug, is shown by a comparative study of the effects of chloramphenicol treatment. In addition, in the cytoplasm Eth Br depresses the labeling of 28 S rRNA more than that of 18 S whereas no abnormal accumulation of 28 S rRNA is observed in the nucleus. It is suggested that Eth Br may affect either the stability of the 28 S rRNA or its rate of formation from the 32 S precursor.
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386
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Cresteil T, Beaune P, Leroux JP, Lange M, Mansuy D. Biotransformation of chloroform by rat and human liver microsomes; in vitro effect on some enzyme activities and mechanism of irreversible binding to macromolecules. Chem Biol Interact 1979; 24:153-65. [PMID: 428006 DOI: 10.1016/0009-2797(79)90004-8] [Citation(s) in RCA: 26] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The effects of chloroform on some rat microsomal enzyme activities were studied in vitro. Maximum inhibition of oxygen consumption, NADPH oxidase and NADPH-cytochrome c reductase was observed at 0.5 mM chloroform; prior metabolization of CHCl3 by microsomal monooxygenases increased inhibition by about 50% at 0.2-0.5 mM chloroform. Higher concentrations produced a paradoxical reversal of inhibition, whereas p-nitroanisole demethylase was steadily inhibited by about 50% up to 10 mM chloroform. Irreversible binding of 14CHCl3 was confirmed to depend on chloroform metabolization by monooxygenases. The increased irreversible binding due to phenobarbital induction is accompanied by a diminished affinity towards chloroform as shown by increased KM of irreversible binding, and a higher spectral dissociation constant KS. Aminoacids with nucleophilic functions (histidine, cysteine) partially prevented the irreversible binding of chloroform metabolites to microsomes; non-volatile radioactive derivatives were recovered in trichloracetic acid supernatants when microsomes were incubated with cysteine, but not with histidine. Phosgene has been demonstrated as a biological metabolite of chloroform: its possible reactions with nucleophilic groups of macromolecules, water and added aminoacids partly explain these experimental data. Similar results were obtained with human microsomes, showing that chloroform hepatotoxicity in man could involve the same mechanisms.
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387
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Lange M. Carcinoma of the duodenum [proceedings]. S AFR J SURG 1978; 16:260. [PMID: 746389] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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388
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Brebner DM, Epstein EE, Lange M. Xerographic parenchymal patterns and breast cancer. S Afr Med J 1978; 54:853-6. [PMID: 746397] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
The xerographic mammography records of 3,002 patients with breast disease were reviewed and classified according to the criteria of Wolfe. The parenchymal P2 pattern occurred in 59% of patients with cancer and in only 16,9% patients under the age of 40 without cancer, but the incidence of the DY pattern was much the same in patients with cancer and in those without cancer in almost all the age groups studied. The incidence of the P2 pattern tended to rise slightly in patients without cancer, whereas the incidence of the DY pattern tended to remain the same in all groups. The findings of Wolfe and others have been confirmed by this study, which also supports the suggestion that women under the age of 40 undergo a baseline xerographic examination of the breasts for cancer and that subsequent screening be based on the presence of a P2 pattern. This will involve a selection of 16,9% of the under 40-year-old subjects without cancer who might, on screening be expected to show 60% of the cancers in each decade after the age of 40. This information coupled with other factors indicating a high risk for the development of breast cancer, such as florid epithelial dysplasia, a previous history of breast cancer or a family history of breast cancer, should increase the yield of early carcinomas at a preclinical stage and reduce costs of a screening programme.
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389
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Lange M, Salaki JS, Middleton JR, Sen P, Kapila R, Gocke M, Louria DB. Infective endocarditis in heroin addicts: epidemiological observations and some unusual cases. Am Heart J 1978; 96:144-52. [PMID: 676973 DOI: 10.1016/0002-8703(78)90077-7] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The total number of cases of heroin-induced endocarditis occurring over a four-year period were reviewed in order to explain an increase in the number of cases in the last year studied (1975). Brown heroin was noted to be used more frequently by addicts during the period of increased incidence. Cultures of "street samples" of brown and white heroin as well as cocaine were obtained in order to elucidate a possible relationship between the increased use of brown heroin and the increased number of endocarditis cases. Despite frequent contamination of both white and brown heroin, none of the common endocarditis-causing pathogens were isolated from the samples. Staphylococcus aureus, the most common etiological agent, frequently resulted in tricuspid endocarditis. That the accepted criteria for tricuspid endocarditis may be present without actual cardiac valve involvement is demonstrated by a most unusual case of hepatic vasculature infection.
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390
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Levin J, Kay G, Da Fonseca M, Lange M, De Moor NG, Savage N. Oestrogen receptors in tumours of breast cancer patients. S Afr Med J 1978; 53:577-8. [PMID: 675422] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Oestrogen receptors were measured in the cytoplasmic fraction of tumours from patients with breast cancer. Receptors were detected in 48% of patients, and 52% showed no receptors. A follow-up study of a small group of patients on hormone therapy is reported.
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391
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Mansuy D, Beaune P, Cresteil T, Lange M, Leroux JP. Evidence for phosgene formation during liver microsomal oxidation of chloroform. Biochem Biophys Res Commun 1977; 79:513-7. [PMID: 588283 DOI: 10.1016/0006-291x(77)90187-5] [Citation(s) in RCA: 97] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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392
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Middleton JR, Sen P, Lange M, Salaki J, Kapila R, Louria DB. Death-producing hemoptysis in tuberculosis. Chest 1977; 72:601-4. [PMID: 913138 DOI: 10.1378/chest.72.5.601] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Massive hemoptysis in patients with tuberculosis is reported infrequently and then virtually always in association with cavitary disease or aspergilloma. In contrast, we describe herein five cases characterized by hemoptysis on admission, bilateral pulmonary disease, samples of sputum positive for acid-fast bacilli by Ziehl-Neelsen stain, and no obvious cavitary disease. In each, hemoptysis subsided and then suddenly recurred in prodigious amounts, leading to death, probably from asyphyxiation. In patients hospitalized with tuberculous hemoptysis of any amount, with or without an obvious cavity, aggressive diagnostic evaluation, including bronchoscopic examination, may define the site of bleeding, thus permitting rapid surgical intervention if the hemoptysis increases.
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393
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Mansuy D, Battioni P, Chottard JC, Lange M. Nitrosoalkanes as new ligands of iron(II) porphyrins and hemoproteins. J Am Chem Soc 1977; 99:6441-3. [PMID: 893895 DOI: 10.1021/ja00461a046] [Citation(s) in RCA: 35] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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394
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Lange M. Mastitis - a mélange. S Afr Med J 1977; 52:1-2. [PMID: 888036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
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395
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Lange M, Brebner D, Klempman S. Cytology and mammography in the diagnosis of breast cancer. S Afr Med J 1976; 50:2132-3. [PMID: 1006492] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
The results of an analysis of the accuracy of two diagnostic tests in a series of 714 patients with breast masses are presented. Fine needle aspiration cytology and mammography each had a false negative rate of 5,3%. Use of a combination of both techniques reduced the number of carcinomas missed to 2,3%. The need for histological examination of dominant discrete breast masses is emphasised.
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396
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Lange M, Alfi OS. Trisomy 19 q. ANNALES DE GENETIQUE 1976; 19:17-21. [PMID: 1084117] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Two sibs with trisomy for the long arm of chromosome 19 are reported. The common features included flat facial profile with microcephaly, hypertelorism, ptosis, prominence of the glabella, small nose with anteverted nostrils and a characteristic fish-shaped mouth. In addition congenital heart disease, physical retardation and seizures were seen in both sibs. That tristomy 19q can be suspected clinically is emphasized.
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397
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Lange M. Relief work in Kurdistan. NURSING MIRROR AND MIDWIVES JOURNAL 1975; 141:64-6. [PMID: 1040896] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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398
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Lange M, Falkson G, Geddes E. Intra-arterial chemotherapy in the treatment of primary liver cancer. S AFR J SURG 1974; 12:245-9. [PMID: 4614473] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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399
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Lange M, Klempman S. Fine needle aspiration biopsy in the diagnosis of breast disease. S AFR J SURG 1972; 10:143-6. [PMID: 4657808] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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400
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Lange M. [60th anniversary of Prof. Dr. Karl Chiari]. ZEITSCHRIFT FUR ORTHOPADIE UND IHRE GRENZGEBIETE 1972; 110:277-80. [PMID: 4263210] [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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