2751
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Zhang YY, Wu PJ, Zhang Q. [The penetration of cephalosporins across the blood-brain barrier and its clinical significance]. Zhonghua Nei Ke Za Zhi 1989; 28:340-2, 381. [PMID: 2582913] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
The penetration of Cefuroxime (CXM), Ceftazidime (CTZ), Cefotaxime (CTX), Ceftizoxime (CZX), and Ceftriaxone (CTRX) across the blood-brain barrier was studied in 119 patients with or without meningitis after an intravenous injection of 2 grams. Cephalosporins were undetectable or their concentrations very low in the cerebrospinal fluid (CSF), when there was no inflammation in the meninges. On the contrary, the mean CSF concentrations of cephalosporins were 2.21-5.36 micrograms/ml and the CSF/serum ratios 3.73-31.80% in acute stage of purulent meningitis. The CSF levels of all the five cephalosporins were much higher than the mean MICs of the common pathogens of bacterial meningitis as well as that of Enterobacteriaceae. It is thus shown that these five new cephalosporins are useful for treatment of meningitis including those caused by gram-negative bacilli.
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2752
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Wu G, Liu D, Fang G, Hu W, Jia H, Zhang Q, Fukada K, Yoshimura K, Saji H, Lee TD. The detection of an antibody against IgA allotype A2M 2 and a study of the Am genetic marker among the Han Chinese population. Transfusion 1989; 29:337-40. [PMID: 2497568 DOI: 10.1046/j.1537-2995.1989.29489242801.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
The serum of a woman was found by the Ouchterlony double-diffusion and the hemagglutination inhibition (HAI) methods to have immunoglobulin A (IgA) deficiency. Further investigation using the hemagglutination (HA) test with red cells coated with IgA myeloma proteins of different specificities showed that the serum agglutinated only IgA2-, A2M-1, and A2M 2-coated cells. The patterns of the HAI test with a reference panel confirmed the presence of two specificities. One was anti-IgA2 and the other was a rare antibody against the allotype A2M 2. The anti-A2M 2 was used for population studies. Testing of the Han Chinese population, including family studies, confirms that A2M.1 and A2M.2 have an autosomal dominant mode of inheritance and are controlled by a codominant allele. The distribution of the two Am genetic markers among the Han Chinese population demonstrated A2M.1 with a gene frequency of 0.553 and A2M.2 with a gene frequency of 0.447 (chi 2 = 0.145, 0.80 greater than p greater than 0.70).
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Affiliation(s)
- G Wu
- Blood Group Reference Laboratory of Shanghai Red Cross Blood Center, People's Republic of China
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2753
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Zhang Q, Wang XN, Gao EW, Cheng CP. [The content of tyrosine in rat luteal cell and the changes caused by hCG, cAMP and progesterone]. Sheng Li Xue Bao 1989; 41:70-5. [PMID: 2548285] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
The ovaries taken from the immature female rats primed with PMSG-hCG were digested with collagenase-DNAase solution to obtain the luteal cell suspensions. Luteal cells were then incubated with different doses of hCG, cAMP or progesterone for 1.5 hours. The contents of tyrosine in luteal cell suspensions were determined by thin layer chromatogram using dual-wavelength chromatogram scanner. It was found that the content of tyrosine in rat luteal cell suspensions was 1.41 + 0.24 nmol/L/10(6) cells after one hour incubation. hCG, cAMP and progesterone all could significantly increase the content of tyrosine in the suspensions, suggesting the release of "endogenous tyrosine". The increase of tyrosine was not due to increased transformation of phenylalanine, the precursor of tyrosine, and increased protein synthesis, because both phenylalanine and cycloheximide failed to influence such increase.
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2754
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Sun SD, Zhang Q, Zhao XW, Tang J. [Effects of human atrial natriuretic factor-(99-126) on plasma and brain vasopressin in stroke-prone spontaneously hypertensive rats]. Sheng Li Xue Bao 1989; 41:56-62. [PMID: 2527409] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
In order to investigate the interaction between atrial natriuretic factor (ANF) and arginine vasopressin (AVP) in the pathogenesis of essential hypertension, the effects of intravenous (iv) or intracerebroventricular (icv) injection of human ANF-(99-126) on plasma and brain AVP, as well as mean arterial pressure (MAP), urinary volume (UV) and sodium (UNaV) excretion in stroke-prone spontaneously hypertensive rats (SHRsp) and age-matched normotensive Wistar-Kyoto rats (WKY) were studied. The results showed that ten minutes after iv injection of ANF, MAP decreased by 9.4% and 12.2% (P less than 0.05), UV increased about 9 and 20 folds (P less than 0.01), UNaV increased about 16 and 29 folds (P less than 0.01) in SHRsp and WKY rats, respectively. No such significant changes in these parameters were found in the icv group. Although iv and icv injection of ANF caused significant decrease of plasma AVP in both strains, the decrease was less marked in SHRsp than in WKY rats, while the maximum decreases were 58% (iv) and 31% (icv) in SHRsp, the corresponding values were 80% (iv) and 65% (icv) in WKY. Intravenous and intracerebroventricular injection of ANF also induced significant increase of hypothalamic AVP in both SHRsp and WKY rats, but no significant change could be found in hypophyseal AVP content. The results suggest that decreased sensitivity of AVP inhibition as well as less marked hypotensive, diuretic and natriuretic effects to ANF in SHRsp might play a role in the pathogenesis of their hypertension.
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2755
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Sodek J, Goldberg HA, Domenicucci C, Zhang Q, Kwon B, Maeno M, Kuwata F. Characterization of multiple forms of small collagenous apatite-binding proteins in bone. Connect Tissue Res 1989; 20:233-40. [PMID: 2612156 DOI: 10.3109/03008208909023892] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
A number of small (Mrs 25-28 kDa) collagenous apatite-binding (SCAB) proteins that stain blue with 'Stains-All' have been isolated from fetal porcine bone by sequential extractions with 4M GuHCl (G1), followed by 0.5M EDTA (E), and again with 4M GuHCl (G2). Following purification under dissociative conditions, two types of SCAB proteins both with approximately one-third of their structure being collagenous, were identified in the EDTA extract. One type, which appears to be a novel protein, was revealed in two forms (SCABs 1 and 2, Mrs 25 and 28 kDa) that were recognized by a monoclonal antibody (MBP-322). The second type, SCAB 3, was also present in two forms; one form (SCAB 3a) having a lower affinity for hydroxyapatite than the other (SCAB 3b). These proteins were resistant to CNBr and displayed the chemical and immunochemical properties of the alpha 1 pN-propeptide of type I collagen. A third form of the propeptide (G2-28K) was a prominent component of the second 4M GuHCl extract. The chromatographic properties of serum alpha 1 (I) pN-propeptide were similar to SCAB 3a, indicating that SCAB 3b and G2-28K are post-translationally modified forms of the propeptide produced by bone cells. These propeptides may provide a link between the hydroxyapatite and collagen fibrils, and also have the potential to suppress collagen synthesis during bone resorption.
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Affiliation(s)
- J Sodek
- Medical Research Council Group in Periodontal Physiology, Faculty of Dentistry, University of Toronto, Ontario, Canada
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2756
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2757
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Abstract
Chloroplast DNA (cpDNA) diversity was found within and among populations (245 accessions total) of wild barley, Hordeum vulgare L. ssp. spontaneum Koch from Israel and Iran. Three polymorphic restriction sites (HindIII, EcoRI, BclI) which define three distinct cpDNA lineages were detected. One lineage is common to populations in the Hule Valley and Kinneret of northern Israel, and in Iran. The second lineage is found predominantly in the Lower Jordan Valley and Negev. The distribution of the third lineage is scattered but widespread throughout Israel. Sixty two accessions of cultivated barleys, H. vulgare L., were found, with two exceptions, to belong to just one cpDNA lineage of wild barley, indicating that the cpDNA of cultivated barley is less variable than its wild ancestor. These results demonstrate the need for assessing intraspecific cpDNA variability prior to choosing single accessions for phylogenetic constructions at the species level and higher.
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Affiliation(s)
- D B Neale
- Department of Genetics, University of California, Davis 95616
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2758
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Chen MQ, Chen C, Chen Y, Zhang Q, Wang HX, Zhao XW, Ren B. [Studies on the cervical and abdominal vagal pressor responses in the cat]. Sheng Li Xue Bao 1988; 40:561-8. [PMID: 3074516] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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2759
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Gao EW, Wang XN, Zhang Q, Cheng CP. [[3H]tyrosine binding to the corpus luteal cells of the rat in vitro]. Sheng Li Xue Bao 1988; 40:406-9. [PMID: 3247604] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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2760
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Abstract
Using the method of Fridman and his colleagues, a statistical test of auditory brainstem responses (ABR) for detecting auditory thresholds is presented. The synchrony measure (SM) which represents the degree of reproducibility for group averages was used to calculate the selected Fourier components of the group averages from phase variance. The sensitivity of the test was demonstrated on 35 normal ABRs with 60 and 45 dB SL stimulus intensity and in the absence of stimulus from the ipsilateral recordings. The SM of all cases of normal ABRs at 60 and 45 dB SL exceeded those in the absence of stimulation. The same procedure was applied to 16 ears with cochlear hearing loss with (4 ears) and without (10 ears) recruitment and 2 ears with relatively normal hearing threshold (less than 30 dB HL). Seven out of 10 ears without recruitment had the SM value at 60 dB SL stimulus intensity significantly lower than those of normal ABRs.
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Affiliation(s)
- Y Y Chen
- Sixth People's Hospital, Shanghai, China
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2761
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Zhang Q, Wang XN, Gao EW, Cheng CP. [Effect of twenty-one kinds of amino acids on progesterone production of rat luteal cells induced by hCG]. Sheng Li Xue Bao 1988; 40:299-302. [PMID: 3187563] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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2762
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Abstract
We have studied linkage disequilibrium in natural populations of Trypanosoma cruzi, the agent of Chagas' disease, by analyzing (i) a set of 524 stocks from the whole geographical range of the parasite, characterized at four gene loci coding for enzymes; (ii) a subsample of 121 stocks characterized at 12 enzyme loci; and (iii) a subset of 386 stocks from six locations in Bolivia, characterized by four enzyme loci. Our results show that the linkage disequilibrium reaches the maximum possible value, given the observed allelic frequencies, for almost all the locus pairs. This result is most consistent with the hypothesis that genetic recombination is absent or very rare in T. cruzi natural populations. Partition of the linkage disequilibrium variance for the six Bolivian populations shows that both inter- and intrapopulation components are substantial and that the relationships among the components are D2IS less than D2ST, and D'2IS less than D'2ST. These inequalities are interpreted as the result of an interplay between genetic drift, rare or absent mating, and clonal selection in generating linkage disequilibrium in T. cruzi populations.
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Affiliation(s)
- Q Zhang
- Department of Genetics, University of California, Davis 95616
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2763
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Pan XY, Li FQ, Yu RJ, Xie GF, Wang H, Zhao LY, Zhang Q. [Experimental chemotherapy of human gastric cancer cell lines in vitro and in nude mice]. Zhonghua Zhong Liu Za Zhi 1988; 10:15-8. [PMID: 2843330] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Cytotoxic effects of allyl trisulfide (Alt, a synthetic chemical identical with one of the main active principles of garlic), 5 FU, MMC and DDP on SGC 7901 ( a moderately differentiated human gastric adenocarcinoma cell line) and MGC 803 (a poorly differentiated human gastric mucoadenocarcinoma cell line) had been reported before. In this paper, effects of repeated two doses of each drug and the combination of two drugs on these two cell lines were studied using relative clone-survival test. The inhibitory effects of Alt, MMC alone or combined on MGC tumor in nude mice were observed. No drug resistance was found when any one of the four agents at the same concentration were repeated twice separately at 60 hour interval in vitro. The cytotoxic effect of the repeated two doses was approximately equal to that of the single dose at double concentration. The in vitro test of combinations of two drugs showed that Alt plus MMC or 5 FU plus DDP had markedly synergistic effect on MGC cells; 5 FU plus DDP had markedly synergistic effect on SGC cells. The inhibition test on the growth of MGC tumor in nude mice indicated that the inhibition rates of Alt, MMC alone or combined were 58.3%, 86.3% and 84.3%. The systemic toxic effect of MMC alone was severe, whereas Alt alone or MMC plus Alt showed mild toxicity. For this reason, Alt plus MMC is recommended for clinical trials on poorly differentiated gastric cancer. In addition, for the comparison of in vitro test dose and clinical dose of each drug, the principle of clinical adult dose range (CADR) is proposed.
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Affiliation(s)
- X Y Pan
- Institute of Basic Medical Sciences, Shandong Academy of Medical Sciences, Jinan
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2764
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Wang XN, Zhang Q, Gao EW, Cheng ZP. Effects of tyrosine and its analogues on hCG-induced progesterone production by rat corpus luteum in vitro. Chin Med J (Engl) 1987; 100:859-64. [PMID: 3130224] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
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2765
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Zhang Q. [Uses of high-speed turbine drills in oral surgery and nursing care]. Zhonghua Hu Li Za Zhi 1987; 22:400-2. [PMID: 3322592] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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2766
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Zhang Q, Chen TG. [Endocrine and biochemical changes after oophorectomy]. Zhonghua Fu Chan Ke Za Zhi 1987; 22:281-4, 311. [PMID: 3127154] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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2767
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Zhang Q. [Iron nutritional status of young female workers in the Shanghai First Silk Factory]. Zhonghua Yu Fang Yi Xue Za Zhi 1987; 21:87-9. [PMID: 3652857] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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2768
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Zhang Q, Levy PM. Concentration dependence of the spin-glass temperature of metallic alloys. Phys Rev B Condens Matter 1986; 34:7965-7968. [PMID: 9939483 DOI: 10.1103/physrevb.34.7965] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/11/2023]
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2769
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Zeng Y, Fan J, Zhang Q, Wang PC, Tang DJ, Zhon SC, Zheng XW, Liu DP. Detection of antibody to LAV/HTLV-III in sera from hemophiliacs in China. AIDS Res 1986; 2 Suppl 1:S147-9. [PMID: 3103638] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Using ELISA, Western blots and immunofluorescence techniques, we identified seropositivity for lymphadenopathy-associated virus/human lymphotropic virus-III (LAV/HTLV-III) in 4 of 18 hemophiliacs and 1 AIDS patient. The four seropositive patients had received factor VIII prepared by Armour Company. The hemophiliacs are all asymptomatic. Given this documentation of introduction of LAV/HTLV-III into China, a national surveillance program is underway.
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2770
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2771
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Zhang Q, Li SS, Sun SL. [Hypertension and bleeding from the upper digestive tract secondary to an operation for patent ductus arteriosus]. Zhonghua Wai Ke Za Zhi 1986; 24:408-9, 446. [PMID: 3493123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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2772
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Zhang Q. [Role of the ovarian nerves in reproductive function]. Sheng Li Ke Xue Jin Zhan 1986; 17:229-33. [PMID: 3541180] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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2773
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Liu Y, O'Brien S, Zhang Q, Heath J, Tittel F, Curl R, Kroto H, Smalley R. Negative carbon cluster ion beams: New evidence for the special nature of C60. Chem Phys Lett 1986. [DOI: 10.1016/s0009-2614(86)80042-2] [Citation(s) in RCA: 72] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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2774
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O’Brien SC, Liu Y, Zhang Q, Heath JR, Tittel FK, Curl RF, Smalley RE. Supersonic cluster beams of III–V semiconductors: GaxAsy. J Chem Phys 1986. [DOI: 10.1063/1.450069] [Citation(s) in RCA: 241] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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2775
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Zhang Q, Geng S. A method of estimating varietal stability for data of long-term trials. Theor Appl Genet 1986; 71:810-814. [PMID: 24247707 DOI: 10.1007/bf00276422] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 09/09/1985] [Indexed: 06/02/2023]
Abstract
A method is proposed to analyze the stability of cultivars in long-term varietal trials. The method involves the following steps: (i) regress a standard variety on environmental means; (ii) regress varieties under test on the standard variety; (iii) transform, through a procedure of reparameterization, the regression computed for each variety under test on the standard variety into the regression of the variety on environmental means. Although this method is proposed to analyze data sets from complex designs, it may also possess some advantages over conventional procedures for simpler designs.
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Affiliation(s)
- Q Zhang
- Department of Genetics, University of California, 95616, Davis, CA, USA
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2776
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Levy PM, Zhang Q. Long-range interactions between local moments in metals: Application to spin-glass systems. Phys Rev B Condens Matter 1986; 33:665-667. [PMID: 9937973 DOI: 10.1103/physrevb.33.665] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/11/2023]
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2777
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Zhang Q. [Management of pregnancy after cardiac valve prosthesis (with a report of 12 cases)]. Zhonghua Yi Xue Za Zhi 1985; 65:653-6. [PMID: 3938312] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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2778
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Zhang Q, Wu WC, Wu JZ, Zhou RL, Yan CH, Yin FX, Guo ZH, Zhu LX. Ejaculatio deficiens treated with acupuncture. Report of 110 cases. J TRADIT CHIN MED 1984; 4:181-2. [PMID: 6570147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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2779
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Zhang Q. [Study on the cardiac function of normal residents at an altitude of 2,300 m by impedance plethysmocardiography]. Zhonghua Xin Xue Guan Bing Za Zhi 1984; 12:111-3. [PMID: 6489135] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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2780
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Zhang Q. [An inquiry into the formula of calculation of the planned total population]. Renkou Yanjiu 1984:56-7. [PMID: 12159335] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/26/2023]
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2781
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Zeng Y, Shen SJ, Deng H, Ma JL, Zhang Q, Zhu JS, Cheng JR. Early nasopharyngeal carcinoma among IgA/VCA antibody positive individuals detected by anticomplement immunoenzymatic method. Chin Med J (Engl) 1984; 97:155-7. [PMID: 6088182] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
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2782
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Zhang Q. China: the strengthening of family planning at grass-roots level. Asian Pac Popul Programme News 1984; 13:33-4. [PMID: 12313217] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/19/2023]
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2783
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Tang ZM, Chen MY, Zhang Q. [Estradiol derivatives: relationship between uterotrophic activity and affinity to the cytosol receptor]. Zhongguo Yao Li Xue Bao 1983; 4:186-191. [PMID: 6228119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
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2784
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Zhang Q, Tsukagoshi N, Miyashiro S, Udaka S. Increased production of alpha-amylase by Bacillus amyloliquefaciens in the presence of glycine. Appl Environ Microbiol 1983; 46:293-5. [PMID: 6193759 PMCID: PMC239304 DOI: 10.1128/aem.46.1.293-295.1983] [Citation(s) in RCA: 29] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
Abstract
The production of alpha-amylase by Bacillus amyloliquefaciens increased by a factor of 300 when glycine was added to a chemically defined simple medium at the early-logarithmic phase of growth. Glycine was not metabolized to a significant extent under the conditions used, but it considerably prevented the lowering of the pH of the culture.
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2785
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Boschelli F, Arndt K, Nick H, Zhang Q, Lu P, Takeda Y. Lambda phage cro repressor. DNA sequence-dependent interactions seen by tyrosine fluorescence. J Mol Biol 1982; 162:251-66. [PMID: 6219228 DOI: 10.1016/0022-2836(82)90525-3] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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2786
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Zeng Y, Shen SJ, Deng H, Ma JL, Zhang Q, Zhu JS, Cheng JR. [Detection of early NPC from VCA/IgA antibody positive individuals with anticomplement immunoenzymatic method]. Zhongguo Yi Xue Ke Xue Yuan Xue Bao 1982; 4:254-5. [PMID: 6295651] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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2787
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Chu CS, Ouyang BY, Zhang Q. Early and late pathological changes in severe chemical burn to the respiratory tract complicated with acute respiratory failure. Burns 1982; 8:387-90. [PMID: 7104790 DOI: 10.1016/0305-4179(82)90107-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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2788
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Zeng Y, Zhang LG, Li HY, Jan MG, Zhang Q, Wu YC, Wang YS, Su GR. Serological mass survey for early detection of nasopharyngeal carcinoma in Wuzhou City, China. Int J Cancer 1982; 29:139-41. [PMID: 6895884 DOI: 10.1002/ijc.2910290204] [Citation(s) in RCA: 144] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
A serological mass survey was carried out in Wuzhou City of the Guangxi Autonomous Region, China. Sera were collected from 12,932 persons between the ages of 40 and 59. The positive rate of VCA/IgA antibody-positive person was 5.3%, but no EA/IgA antibody was found in sera from VCA/Iga-negative persons. Thirteen and nine nasopharyngeal carcinoma (NPC) patients were detected from the VCA/Iga and EA/IgA antibody-positive persons, respectively. With the present combination method the detection rate of NPC for 12,932 persons was 100.5/100,000 and for 680 VCA/IgA antibody-positive persons it was 1,900/100,000. Thus, the rate was twice and 37 times higher, respectively, than the annual incidence rate of NPC in persons of the same age group from 1975-1978 in Wuzhou City. Of 13 NPC patients, 9 were in stage I (70%) and 4 in stage II (30%). Therefore, it is possible to reduce the mortality rate of NPC in Wuzhou City by radiotherapy of NPC patients in the early stage of the disease. The present results further suggest that EB virus is closely associated with NPC.
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2789
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Zhang Q. [Blood gas analysis in 224 healthy subjects at high altitudes (author's transl)]. Zhonghua Jie He He Hu Xi Xi Ji Bing Za Zhi 1982; 5:35-7. [PMID: 6807661] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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2790
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Zeng Y, Shen SJ, Pi GH, Ma JL, Zhang Q, Zhao ML, Dong HJ. Anticomplement immunoenzymatic method of detecting Epstein-Barr nuclear antigen in nasopharyngeal carcinoma cells and normal epithelial cells. Chin Med J (Engl) 1981; 94:663-8. [PMID: 6274591] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
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2791
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Tang HT, Chai WG, Zhang L, Jing HR, Geng YF, Fan LH, Zhang Q, Peng HP. [Electrochemical reduction of (R)-1- hydroxyl-1-(m-hydroxylphenyl)-acetone oxime--a new method of preparing metaraminol (author's transl)]. Yao Xue Xue Bao 1981; 16:440-4. [PMID: 7270171] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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2792
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Zeng Y, Pi GH, Zhang Q, Shen SJ, Zhao ML, Ma JL, Dong HJ. [Application of anticomplement immunoenzymatic method for the detection of EBNA in carcinoma cells and normal epithelial cells from nasopharynx (author's transl)]. Zhongguo Yi Xue Ke Xue Yuan Xue Bao 1980; 2:220-3. [PMID: 6273001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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