3051
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Abstract
The current studies were performed to determine the influence of malnutrition alone or in combination with endotoxemia in promoting bacterial translocation from the gastrointestinal tract. Bacterial translocation did not occur in control, starved (up to 72 hours), or protein-malnourished (up to 21 days) mice not receiving endotoxin. Bacterial translocation to the mesenteric lymph nodes (MLNs) occurred in 80% of control mice 24 hours after receiving endotoxin (p less than 0.01). However, the combination of malnutrition plus endotoxin was associated with a higher incidence of translocation to the systemic organs (p less than 0.01), and higher numbers of bacteria per organ (p less than 0.01), than was seen in normally nourished mice receiving endotoxin. Additionally, mice that were protein malnourished were more susceptible to the lethal effects of endotoxin than were control animals, and the mortality rate was directly related to the degree of malnutrition (R2 = 0.93) (p less than 0.05). Histologically, endotoxin in combination with protein malnutrition resulted in mechanical damage to the gut mucosal barrier to bacteria. Thus, in the mice that were protein malnourished the spread of bacteria from the gut could not be controlled nor could translocated bacteria be cleared as well as normally nourished mice receiving endotoxin. These results support the concept that under certain circumstances the gut may serve as a clinically important portal of entry for bacteria.
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3052
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Phase 2 study of high dose etoposide (VP16-213) in hepatocellular carcinoma. Jpn J Clin Oncol 1987; 17:113-5. [PMID: 3039199] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
A phase II study of etoposide (VP16-213) in hepatocellular carcinoma was conducted among 18 Chinese patients. There was no observable tumour response but the treatment was relatively well tolerated with an overall median survival interval of 74 days.
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3053
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Abstract
The capacity of peritoneal exudate cells (PEC) obtained from mice infected or immunized with Plasmodium berghei to produce reactive oxygen species (ROS) and the biological basis of this response was investigated, using luminol-dependent zymosan-triggered chemiluminescence (CL). CL response of PEC from infected mice increased at the early stage but was significantly depressed at the later course of the infection. A similar biphasic activity of peroxidase was also observed in PEC from infected mice. On the other hand, PEC from immunized mice exhibited concomitant increases of the ability to produce CL, the activity of peroxidase and the expression of Fc and C3 receptors on cell surface. Compared with the controls, PEC from immunized mice showed an elevated background CL, responded more rapidly to the stimulation and generated considerably higher CL when triggered with opsonized zymosan. The data suggest that phagocytes in immunized mice are active in the production of ROS while those in infected mice are less active, and the inhibition of the ability of phagocytes to produce ROS may be one of the mechanisms for the parasites to escape from host immune system.
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3054
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[Experimental studies of the combination of vincristine and 1,2:5,6-dianhydrogalactitol]. YAO XUE XUE BAO = ACTA PHARMACEUTICA SINICA 1987; 22:98-102. [PMID: 3618243] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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3055
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Abstract
The criteria for hospital admission of children who have suffered a minor head injury are highly subjective. Often the presence of post-traumatic emesis becomes an influential factor, but the mechanisms that trigger emesis following minor head injuries are not known. From a prospective study of 96 consecutive children with their first mild head injury (GCS 13-15) and a retrospective study of 29 consecutive more seriously injured children (GCS 8-12), we conclude that post-traumatic emesis is more common: (1) following minor head injuries than following more severe head injuries (P less than 0.05); (2) in children over 2 years old; (P less than 0.001); (3) in children injured within an hour of a meal or snack (p less than 0.001). The presence of a skull fracture or the site of the impact does not influence the incidence or duration of post-traumatic emesis. Retching and vomiting generally subside within 3 h in children injured within an hour of a meal or snack. When vomiting appears in children injured more than an hour after a meal or a snack, it may be quite protracted (mean = 7.5 h). Children over 2 years of age with post-traumatic emesis who are neurologically stable following a mild head injury that occurred within an hour of a meal or snack can be expected to improve quickly. Their counterparts injured more than an hour after a meal or snack are likely to remain distressed much longer and are best admitted to hospital.
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3056
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3057
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[Regulation of immune gene synthesis in mice by cixichunbao granule]. ZHONG YAO TONG BAO (BEIJING, CHINA : 1981) 1986; 11:52-4. [PMID: 2952343] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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3058
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[Preliminary studies of the enzymologic properties of terminal deoxynucleotidyl transferase and its clinical application]. HUA XI YI KE DA XUE XUE BAO = JOURNAL OF WEST CHINA UNIVERSITY OF MEDICAL SCIENCES = HUAXI YIKE DAXUE XUEBAO 1986; 17:176-9. [PMID: 3470249] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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3059
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[Isolation and purification of terminal deoxynucleotidyl transferase from calf thymus]. HUA XI YI KE DA XUE XUE BAO = JOURNAL OF WEST CHINA UNIVERSITY OF MEDICAL SCIENCES = HUAXI YIKE DAXUE XUEBAO 1986; 17:93-6. [PMID: 3770729] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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3060
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Abstract
Antitumor antibiotics rhodilunancins A and B were isolated from a culture of Streptomyces violaceus var. lunanensis var. n. No. 1289 by acidic acetone extraction of mycelia and purified by silica gel chromatography. Rhodilunancin A is identical to cosmomycin A. Rhodilunancin B is identical to cosmomycin B (= rhodomycin Y). Both antibiotics exhibited activities against Gram-positive bacteria and inhibition on DNA synthesis of P388 leukemia cell in vitro.
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3061
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[Translation in the wheat germ cell-free protein-synthesizing system of human rotavirus RNA]. WEI SHENG WU XUE BAO = ACTA MICROBIOLOGICA SINICA 1985; 25:324-8. [PMID: 3017011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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3062
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[Diagnosis and treatment of cor pulmonale with traditional Chinese medicine based on blood gas analysis and acid-base equilibrium: analysis of 202 cases]. ZHONG XI YI JIE HE ZA ZHI = CHINESE JOURNAL OF MODERN DEVELOPMENTS IN TRADITIONAL MEDICINE 1985; 5:466-8. [PMID: 2932246] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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3063
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[Effect of maytansine on the cell cycle of Ehrlich ascites carcinoma cells in mice]. ZHONGGUO YAO LI XUE BAO = ACTA PHARMACOLOGICA SINICA 1985; 6:63-7. [PMID: 3158164] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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3064
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[Pharmacological studies on an oil emulsion of Schisandra chinensis]. ZHONG YAO TONG BAO (BEIJING, CHINA : 1981) 1984; 9:185-186. [PMID: 6098387] [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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3065
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Structure and immunological properties of polyacrolein formed by means of ionizing radiation and base catalysis. ACTA ACUST UNITED AC 1984. [DOI: 10.1002/pol.1984.170220311] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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3066
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[Use of 1,2:5,6-dianhydrogalactitol in combination with maytansine in experimental tumor therapy]. YAO XUE XUE BAO = ACTA PHARMACEUTICA SINICA 1983; 18:648-53. [PMID: 6677049] [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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3067
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Identification of the paromomycin-resistance mutation in the 15 S rRNA gene of yeast mitochondria. J Biol Chem 1982; 257:5921-8. [PMID: 6279619] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
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3068
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Identification of the paromomycin-resistance mutation in the 15 S rRNA gene of yeast mitochondria. J Biol Chem 1982. [DOI: 10.1016/s0021-9258(19)83867-x] [Citation(s) in RCA: 130] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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3069
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Fundus photocoagulation with the argon and krypton lasers: a comparative study. OPHTHALMIC SURGERY 1981; 12:481-90. [PMID: 7196563] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
Photocoagulation of the monkey fundus with an argon-krypton laser photocoagulator was performed. Lesions produced by argon and krypton wavelengths were compared at various power settings, spot sizes, and exposure durations. At low energy levels argon laser lesions appeared clinically stronger than those produced by the krypton mode. Lesions in the foveal area produced with the argon laser demonstrated more extensive microscopic damage to the inner retinal layers than did those produced with the krypton laser. Histologically, both modalities affected the outer layers of the retina. However, the krypton wavelength affected more of the choriocapillaries and the larger choroidal vessels than the argon wavelengths. Conversely, argon laser coagulation of the retinal vessels damaged the perivascular tissue in the nerve fiber layer more than the krypton laser did. Rupture of Bruch's membrane and choroidal hemorrhage occurred frequently with the krypton laser at low energy levels when a small spot size and a short coagulation time were used. Both complications were less likely to occur with argon burns at similar dosage parameters. By choosing larger spot sizes and longer coagulation times for the krypton laser, these complications were prevented.
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3070
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[Effect of nitidine chloride on the life cycle of Ehrlich ascites carcinoma cells in mice (author's transl)]. ZHONGGUO YAO LI XUE BAO = ACTA PHARMACOLOGICA SINICA 1981; 2:46-9. [PMID: 6461202] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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3071
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[Effects of 1,2:5,6-dianhydrogalactitol on the bone marrow stem cells in normal and melanoma-bearing mice (author's transl)]. ZHONGGUO YAO LI XUE BAO = ACTA PHARMACOLOGICA SINICA 1980; 1:112-5. [PMID: 6461181] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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3072
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Abstract
The mitochondrial genome of Saccharomyces cerevisiae codes for 24 tRNAs. The nucleotide sequences of the tRNA genes suggest a unique set of rules that govern the decoding of the mitochondrial genetic code. The four codons of unmixed fmilies are recognized by single tRNAs that always have a U in the wobble position of the anticodon. The codons of the mixed families are read by two different tRNAs. Codons terminating in a C or U are recognized by tRNAs with a G and codons terminating in a G or A are recognized by tRNAs with a U in the corresponding positions of the anticodons. There are two exceptions to these rules. In the AUN family for isoleucine and methionine, the isoleucine tRNA has a G and the methionine tRNA has a C in the wobble position. The tRNA for the arginine CGN family also has an A in the wobble position of the anticodon. It is of interest that the CGN codons have not been found in the mitochondrial genes sequenced to date. The simplified decoding system of yeast mitochondria allows all the codons to be recognized by only 24 tRNAs.
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3073
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Assembly of the mitochondrial membrane system: sequences of yeast mitochondrial valine and an unusual threonine tRNA gene. Cell 1979; 18:47-53. [PMID: 389433 DOI: 10.1016/0092-8674(79)90352-0] [Citation(s) in RCA: 161] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The mitochondrial DNA segments of two independently isolated rho- clones of S. cerevisiae carrying a genetic marker for a threonine tRNA have been characterized by restriction endonuclease analysis and DNA sequencing. The DNA sequences of the two segments have been used to deduce the primary and secondary structures of the tRNA. The threonine tRNA is unusual in having a leucine anticodon (3'-GAU-5'). Despite the anomalous anticodon, the tRNA is proposed to function in mitochondrial protein synthesis. One of the rho- clones contains an additional coding sequence that has been identified as a valine tRNA genes have been located on the wild-type physical map and determined to be transcribed from two different strands.
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3074
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Abstract
We propose that the UGA terminator regularly occurs as a tryptophan codon in yeast mitochondrial DNA. This conclusion is based on the sequence analysis of mitochondrial DNA regions coding for structural genes of cytochrome b, cytochrome oxidase, and the ATPase.
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3075
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Formation of carcinogenic N-nitroso compounds in corn-bread inoculated with fungi. SCIENTIA SINICA 1979; 22:471-7. [PMID: 112676] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
DMNA, DENA and MBNA are formed in corn-bread which has been inoculated with the most common species of fungi found in foodstuffs of Lin Xian County, Henan Province, such as F. moniliforme, A. flavus and others, and then, added with small amount of NaNO2 after a few days of incubation. These carcinogenic N-nitroso compounds can induce cancer of the liver or/and esophagus in experimental animals. Results of the present study show the capability of some fungi to produce chemical carcinogens as well as mycotoxins in contaminated food, and thus, open a new field of research in cancer etiology.
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3076
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The effect of alpha-1-acetylmethadol hydrochloride on rat hepatic aryl hydrocarbon hydroxylase and epoxide hydrase. RESEARCH COMMUNICATIONS IN CHEMICAL PATHOLOGY AND PHARMACOLOGY 1977; 18:415-22. [PMID: 928944] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Male and female Wistar rats were administered alpha-1-acetylmethadol via their drinking water for one to two weeks. Hepatic aryl hydrocarbon hydroxylase, cytochrome P-450 and epoxide hydrase activities were measured after various doses of this drug. In female rats, a significant increase in aryl hydrocarbon hydroxylase and cytochrome P-450 occurred at doses as low as 4.7 mg/Kg/day. However, no change in epoxide hydrase activity occurred. In male rats, a significant increase in epoxide hydrase activity occurred at all doses tested. From these results, it is concluded that alpha-1-acetylmethadol induces a number of hepatic drug metabolizing enzyme systems.
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3077
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[Effectiveness of therapy of some forms of vestibular disorders by a complex of pharmacologic agents]. Vestn Otorinolaringol 1971; 33:44-8. [PMID: 4398569] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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3078
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Manual fluorometric paper disc method for determining tyrosine in blood. Clin Chem 1968; 14:623-9. [PMID: 5663458] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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3079
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Complement fixing cross reactivity between Histoplasma capsulatum and certain form-related aleuriosporic Hyphomycetes. MYCOPATHOLOGIA ET MYCOLOGIA APPLICATA 1967; 33:353-63. [PMID: 4967884 DOI: 10.1007/bf02088927] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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