351
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Abstract
Several schedules of benzene exposure were evaluated for their effects on peripheral white blood cell counts, bone marrow cellularity and transplantable colony forming units (CFU-S) in male C57 Bl/6 mice. Intermittent exposure to 4000 ppm benzene in air produced leukopenia without altering the bone marrow cellularity. This same treatment, however, decreased the number of CFU-S to 30% of control values. Uninterrupted exposure to lower levels of benzene decreased peripheral cell counts within 24 h, and later decreased marrow cellularity. Exposure of a non-dividing population of stem cells (CFU-S) to benzene for up to 24 h produced no detectable effect on the subsequent development of spleen colonies, suggesting that the effect of benzene on CFU-S occurs only after peripheral cells are depleted. These findings indicate that benzene has affects on both differentiated cells and undifferentiated stem cells. An effect on the pluripotential stem cell is an important aspect of benzene toxicity, but not its exclusive or initial site of action.
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352
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Modifications of benzene myelotoxicity and metabolism by phenobarbital, SKF-525A and 3-methylcholanthrene. Life Sci 1979; 25:1633-40. [PMID: 513970 DOI: 10.1016/0024-3205(79)90404-1] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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353
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Formylmethionyl-tRNA binding properties of Escherichia coli ribosomal protein S1. EUROPEAN JOURNAL OF BIOCHEMISTRY 1979; 98:155-63. [PMID: 380999 DOI: 10.1111/j.1432-1033.1979.tb13172.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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354
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The same old story. NURSING TIMES 1979; 75:948-9. [PMID: 255971] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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355
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The Rhode Island Diabetes Intervention Program. RHODE ISLAND MEDICAL JOURNAL 1979; 62:229-32. [PMID: 111336] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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356
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Abstract
The properties of Azotobacter vinelandii deoxyribonucleic acid (DNA) and folded chromosomes were studied and compared to those of Escherichia coli as a standard. Based on melting temperature and buoyant density measurements, the guanosine + cytosine content of purified A. vinelandii DNA was 65%, whereas that of E. coli DNA was 50%. The results of renaturation studies showed that the unique DNA sequence lengths of the two organisms were similar with Cot1/2 values of 7.3 +/- 0.4 mol.s/liter and 7.5 +/- 0.3 mol.s/liter, respectively, for A. vinelandii and E. coli. Folded chromosomes of A. vinelandii sedimented in a centrifugal field at a rate identical to those derived from E. coli, 1,600 to 1,700S. Based on the DNA content per cell and the mass of a single genome, A. vinelandii contains at least 40 chromosomes per cell.
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357
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A costly mistake? NURSING TIMES 1979; 75:907. [PMID: 255962] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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358
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Building an identity. NURSING TIMES 1979; 75:820. [PMID: 36604] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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359
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Watching democracy in action. NURSING TIMES 1979; 75:775. [PMID: 36603] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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360
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Newsmakers: It's June in April. NURSING TIMES 1979; 75:652. [PMID: 255246] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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361
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Facing the facts. NURSING TIMES 1979; 75:655. [PMID: 255249] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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362
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Where is the silent majority? NURSING TIMES 1979; 75:391. [PMID: 254071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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363
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Who are we? NURSING TIMES 1979; 75:350. [PMID: 254133] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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364
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A STUDY OF THE COMPLIANCE TO PRESCRIBED TREATMENT OF PATIENTS ON ANTI-HYPERTENSIVE THERAPY. J Clin Pharm Ther 1979. [DOI: 10.1111/j.1365-2710.1979.tb00138.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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365
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What about a 'care-in' campaign? NURSING TIMES 1979; 75:315. [PMID: 254125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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366
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A memo to writers. NURSING TIMES 1979; 75:273. [PMID: 253321] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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367
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The funny side of illness. NURSING TIMES 1979; 75:228. [PMID: 253303] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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368
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A touch of guilt? NURSING TIMES 1979; 75:185. [PMID: 253294] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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369
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The interview experience. NURSING TIMES 1979; 75:141. [PMID: 253284] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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370
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Destructive discipline. NURSING TIMES 1979; 75:102-3. [PMID: 253276] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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371
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The man behind the minister (David Hedley Ennals). NURSING TIMES 1979; 75:60-1. [PMID: 368723] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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372
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Where did you get that hat? NURSING TIMES 1978; 74:2094. [PMID: 253255] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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373
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Who wants to be average? NURSING TIMES 1978; 74:2010. [PMID: 251993] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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374
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Can patients teach nurses how to nurse? NURSING TIMES 1978; 74:1924. [PMID: 251953] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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375
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Alternatives to strike action. NURSING TIMES 1978; 74:1884. [PMID: 251944] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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376
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Nursing - a question of sex. NURSING TIMES 1978; 74:1830-1. [PMID: 251270] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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377
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Identification of a tripeptidyl aminopeptidase in the anterior pituitary gland: effect on the chemical and biological properties of rat and bovine growth hormones. Endocrinology 1978; 103:1794-804. [PMID: 748018 DOI: 10.1210/endo-103-5-1794] [Citation(s) in RCA: 34] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
The NH2-terminal heterogeneity which is generated in bovine GH during its extraction from mildly acidified pituitary homogenates is attributable to a newly identified peptidase. The beta-naphthylamide of Phe-Pro-Ala, modeled after the NH2-terminal tripeptide sequence of the phenylalanyl monomer of bovine growth hormone, was cleaved by the peptidase into the tripeptide and B-naphthylamine and served as a substrate for assay of the eznyme. However, the B-naphthylamide of Ala-Phe-Pro, modeled after the NH2-terminal tripeptide sequence of the alanyl monomer, was not cleaved. In harmony with this specificity, the peptidase cleaved 11 tripeptides sequentially from the NH2-terminus of the phenylalanyl monomer of bovine GH but none from the alanyl monomer. Six of the tripeptides nearest the NH2-terminus were unequivocally identified and their sequences were consistent with the NH2-terminal octadecapeptide sequence of the phenylalanyl monomer of bovine GH. Five additional peptides were by composition consistent with their being tripeptides derived from residues 19--33. Because of the apparent specificity for the hydrolytic release of tripeptides and inability to cleave substituted tripeptidyl derivatives, the enzyme is considered to be a tripeptidyl aminopeptidase. In its hydrolysis of phenylalanyl monomers of rat growth hormone, a similar number of tripeptides was released, associated with which there was a 70% loss of biological activity but no reduction in immunological activity. The enzyme could be solubilized by extraction with 1% Triton X-100 at pH 3.0, precipitated between 2 and 3 M (NH4)2SO4, and further purified by gel filtration on G-75 in M/10 acetic acid. The enzyme has a mol wt of 57,000 and is optimally active at pH 4. It can be differentiated from cathepsin D by its insensitivity to inhibition by pepstatin.
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378
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[Hyperglycemic effect and glycogenolytic action of catecholamines]. ARCHIVOS DE FARMACOLOGIA Y TOXICOLOGIA 1978; 4:189-210. [PMID: 31843] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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379
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Differences in dihydroergotamine antagonism of glucose release by catecholamines, glucagon and adenosine 3',5'-monophosphate in rabbit liver slices. Br J Pharmacol 1978; 63:593-7. [PMID: 210874 PMCID: PMC1668120 DOI: 10.1111/j.1476-5381.1978.tb17271.x] [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: 12/13/2022] Open
Abstract
1 Quantitative studies were made on the glucose release from rabbit liver slices in vitro induced by a range of concentrations of (-)-adrenaline (Ad), (-)-isoprenaline (Iso), glucagon and adenosine 3',5'-monophosphate (cyclic AMP) in the presence and absence of several concentrations of dihydroergotamine (DHE). 2 DHE (3.16 X 10(-6) M) shifted the Ad log concentration-response (LCR) curve to the right and also reduced the maximum response; at a higher concentration (3.16 x 10(-5) M) it produced a greater shift to the right of the LCR curve and caused a reduction in the slope and a larger depression of the maximal responses. The LCR curve to Iso was similarly affected by this higher concentration of DHE. 3 DHE (1 X 10(-5) M) produced no significant effect on the LCR curves of glucagon or cyclic AMP and even at 1 x 10(-4) M DHE caused only a slight depression of the maximal responses to both agonists without any modification of the lower major portions of the curves. 4 These data indicate a selective antagonism by DHE at the rabbit liver adrenoceptor and, since the maximal responses to catecholamines were depressed by a lower concentration of DHE than was required to produce a slight depression of the responses to glucagon and cyclic AMP, the antagonism of DHE against catecholamines does not appear to be at a site beyond the formation of cyclic AMP, but rather at a site more intimately related to the adrenoceptor.
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380
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381
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Studies on the bioassayable growth hormone-like activity of plasma. RECENT PROGRESS IN HORMONE RESEARCH 1978; 34:213-38. [PMID: 366680 DOI: 10.1016/b978-0-12-571134-0.50009-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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382
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Abstract
Metabolic and cardiovascular responses to selective beta-adrenergic bronchodilators, carbuterol and metaproterenol, were studied during an asymptomatic period in 8 male subjects with bronchial asthma diagnosed as mile to moderate. On separate days each individual received either placebo, carbuterol 2 mg, carbuterol 4 mg, or metaproterenol 20 mg orally in a double-blind fashion. Subsequently, metabolic and cardiovascular responses were measured periodically for 5 hr. Carbuterol 2 mg was indistinguishable from placebo except for small elevations of glucose at 3 and 4 hr. Carbuterol 4 mg produced significant increases in glucose, insulin, lactate, and free fatty acids as well as in pulse rate and arterial pulse pressure. Metaproterenol produced increases only in plasma glucose and insulin. The majority of patients reported drug-related side effects which were all mild, after taking either carbuterol 4 mg or metaproterenol 20 mg. Fewer subjective side effects were noted with carbuterol 2 mg. These findings indicate that a 2-mg dose of carbuterol can be administered to typical asthmatic subjects without significant subjective or objective side effects. The larger dose (4 mg) may be accompanied by a greater frequency of side effects.
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383
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Metabolic responses to isoproterenol and epinephrine in the rabbit. Influence of state of nourishment, alloxan diabetes and pretreament with propranolol. Biochem Pharmacol 1977; 26:1065-9. [PMID: 880257 DOI: 10.1016/0006-2952(77)90245-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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384
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Cholesterol determination in high-density lipoproteins separated by three different methods. Clin Chem 1977; 23:882-4. [PMID: 192488] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
We describe a simplified method for measuring high-density lipoprotein cholesterol in serum after very-low- and low-density lipoproteins have been precipitated from the specimen with sodium phosphotungstate and Mg2+. Values so obtained correlate well with values obtained with the heparin-Mn2+ precipitation technique (r = 0.95, CV less than 5% in 66% of the subjects studied and between 5 and 10% in the remaining ones) or by ultracentrifugal separation (r = 0.82, CV less than 5% in 80% of the subjects studied and between 5 and 10% in the remaining ones). Our precipitation technique is more appropriate for routine clinical laboratory use.
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385
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Abstract
Abstract
We describe a simplified method for measuring high-density lipoprotein cholesterol in serum after very-low- and low-density lipoproteins have been precipitated from the specimen with sodium phosphotungstate and Mg2+. Values so obtained correlate well with values obtained with the heparin-Mn2+ precipitation technique (r = 0.95, CV less than 5% in 66% of the subjects studied and between 5 and 10% in the remaining ones) or by ultracentrifugal separation (r = 0.82, CV less than 5% in 80% of the subjects studied and between 5 and 10% in the remaining ones). Our precipitation technique is more appropriate for routine clinical laboratory use.
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386
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Changes in plasma glucose and insulin levels induced by adrenergic agents in normal and alloxan-diabetic rats. PROCEEDINGS OF THE SOCIETY FOR EXPERIMENTAL BIOLOGY AND MEDICINE. SOCIETY FOR EXPERIMENTAL BIOLOGY AND MEDICINE (NEW YORK, N.Y.) 1977; 154:337-40. [PMID: 851459 DOI: 10.3181/00379727-154-39666] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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387
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Catecholamine-induced changes in plasma glucose and insulin levels in the unanesthetized rabbit. Pharmacology 1977; 15:407-14. [PMID: 918144 DOI: 10.1159/000136717] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Isoproterenol (ISO) produced dose-related increases in plasma immuno-reactive insulin (IRI) levels in unanesthetized rabbits, whereas epinephrine produced no significant changes. Dose rats of ISO or glucose that produced similar peak increases in glucose levels also produced similar increases in plasma IRI, but the responses to ISO occurred later and were of longer duration than the responses to glucose. Propranolol blocked the increase in plasma IRI produced by ISO, but the ISO-induced rise in plasma glucose was antagonized imcompletely. These data provide supporting evidence for the suggestion that the hyperglycemic activity of ISO in vivo is limited by concurrent ISO-induced changes in peripheral IRI levels.
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388
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Plasma vasopressin and renin activity in women exposed to bed rest and +Gz acceleration. J Appl Physiol (1985) 1976; 40:911-4. [PMID: 931930 DOI: 10.1152/jappl.1976.40.6.911] [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: 12/25/2022] Open
Abstract
To study the effect of prolonged recumbency on plasma vasopressin and renin activity, eight women (23-34 yr) were subjected to 17 days of absolute bed rest. The +3 Gz tolerance of the subjects was tested before and after 14 days of bed rest. From day 2 and through day 17 of bed rest, plasma arginine vasopressin (AVP) levels were reduced 33%. Plasma renin activity (PRA) increased 91% (P less than 0.05) above ambulatory control values from days 10 through 15 of bed rest. When compared to precentrifuge values, exposure to +3 Gz prior to bed rest provoked a 20-fold rise (P less than 0.05) in mean plasma AVP but resulted in only a slight increase in PRA. After bed rest, acceleration increased plasma AVP 7-fold (P less than 0.02); however, the magnitude of this increase was less than the post +3Gz value obtained prior to bed rest. After bed rest, no significant rise was noted in PRA following +3 Gz. This study demonstrates that prolonged bed rest leads to a significant rise in the PRA of female subjects, while exposure to +Gz acceleration provokes a marked rise in plasma AVP.
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389
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On the substrate specificity of cathepsins B1 and B2 including a new fluorogenic substrate for cathepsin B1. Life Sci 1975; 17:1269-76. [PMID: 577 DOI: 10.1016/0024-3205(75)90137-x] [Citation(s) in RCA: 146] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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390
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Studies on human urinary arylamidases. ARCHIVES INTERNATIONALES DE PHYSIOLOGIE ET DE BIOCHIMIE 1975; 83:519-28. [PMID: 54131 DOI: 10.3109/13813457509071396] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Human urinary protein was found to contain enzymes that hydrolyze leucyl-, alanyl-, and glycyl-prolyl-beta-naphthylamides. The kinetic constants of these enzymes were determined and their chemical properties studied. The values for Km calculated for leucyl-, alanyl-, and glycyl-prolyl arylamidases were 3.7 times 10(-5) M, 7.1 times 10(-5) M, and 1 times 10(-4) M, respectively. The pH optima for the hydrolysis of Leu-beta-naphthylamide and Ala-beta-naphthylamide were between 7.4-7.8; whereas for glycyl-prolyl-beta-naphthylamide, it was around 8.8. Unlike the glycyl-prolyl-arylamidase which was inhibited by Co2+ and Mn2+, the other two arylamidases were slightly activated by Co2+. p-Chloromercuriphenyl-sulfonate and puromycin significantly inhibited leucyl-, and alanyl arylamidases. The mean values for 24-h urinary output for leucyl-, alanyl-, and glycyl-prolyl arylamidases in normal human male subjects were 4.32, 9.97, and 2.2 units, respectively.
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391
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The influence of propranolol on catecholamine-induced changes in carbohydrate metabolism in the rabbit. Eur J Pharmacol 1975; 32:186-94. [PMID: 1149805 DOI: 10.1016/0014-2999(75)90282-4] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
In vitro evidence has indicated that isoproterenol (ISO) is more potent than epinephrine (EPI) in releasing glucose from rabbit liver slices and that propranolol (PROP) is a competitive antagonist of ISO. In contrast, dose-response data from fasted rabbits have shown that EPI is more potent than ISO in increasing plasma glucose levels and in lowering hepatic glycogen levels. Pretreatment with PROP abolished ISO-induced hyperglycemia and changes in liver and muscle glycogen levels whereas only the muscle glycogen depleting effect of EPI was altered significantly. These results suggest that factors other than stimulation of hepatic beta-receptors must be involved in EPI-stimulated depletion of liver glycogen and hyperglycemia in the intact rabbit.
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392
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Isoproterenol- and epinephrine-induced changes in blood glucose and tissue glycogen levels in normal and diabetic rats: the influence of alteration in endogenous insulin levels and state of nourishment. J Pharmacol Exp Ther 1975; 193:576-84. [PMID: 1142106] [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 hyperglycemic activities of catecholamines vary drastically from one species to another. Within certain species, the activity of catecholamines is largely dependent upon the state of nourishment. In the rat, isoproterenol (ISO) produces significant hyperglycemia only in the fasted state whereas epinephrine (EPI) produces hyperglycemia in both the fed and the fasted states. In this study, measurement of plasma insulin and glucose levels in response to ISO and EPI showed that ISO produces dose-related increases in the insulin/glucose ratio and that the ratio is influenced greatly by the state of nourishment. On the other hand, EPI, an inhibitor of insulin release, reduced the insulin/glucose ratio. When a deficiency of insulin release was produced by alloxan treatment, the hyperglycemic activity of ISO was increased markedly whereas the activity of EPI did not change. Pretreatment of fed normal rats with ISO suppressed markedly the expected hyperglycemic response to a subsequent challenge with EPI. In contrast, injection of ISO prior to an EPI challenge in diabetic rats produced a hyperglycemic effect greater than that produced by either agent alone. These results suggest that insulin release by ISO regulates the hyperglycemic activity of this catecholamine in the rat and perhaps in several other species as well. Moreover, much of the species differences in the hyperglycemic activity of catecholamines can be attributed to their ability to stimulate hepatic glucose production on the one hand and to stimulate or inhibit insulin release on the other.
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393
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Amino terminal residue heterogeneity of bovine and ovine growth hormones as revealed by polyacrylamide gel electrophoresis. Endocrinology 1975; 96:833-8. [PMID: 235418 DOI: 10.1210/endo-96-4-833] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Prolonged electrophoresis (4 to 16 h) of bovine and ovine growth hormones on analytical polyacrylamide gels in Tris-EDTA-borate buffers of pH 7.6 to 8.1 resulted in the separation of alanyl, phenylalanyl, and methionyl terminal polypeptide chains of these hormones similar to that obtained by isoelectric focusing in Ampholine pH gradients. Their relative anodic mobilities were methionyl greater than phenylalanyl greater than alanyl. The mobilities of the respective monomers were inversely related to their isoionic points as determined by isoelectric focusing in Ampholine pH gradients. The resolution of the different monomers is attributed to differences in the dissociation constants of the amino groups of the alanyl, phenylalanyl and methionyl terminal residues. Rat growth hormone, which consists of monomers with only a phenylalanyl amino terminus, did not display heterogeneity on gel electrophoresis. The applicability of employing polyacrylamide gel electrophoresis for the assessing of amino terminal residue heterogeneity is noted.
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394
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The processing of affectively-toned words in incidental learning: a test of differential acquisition and response bias hypotheses. Acta Psychol (Amst) 1975; 39:51-67. [PMID: 1146597 DOI: 10.1016/0001-6918(75)90021-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
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395
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Effects of propanolol and sotalol on epinephrine-induced hyperglycemia and glycogen depletion of liver and muscle in the rat. PROCEEDINGS OF THE SOCIETY FOR EXPERIMENTAL BIOLOGY AND MEDICINE. SOCIETY FOR EXPERIMENTAL BIOLOGY AND MEDICINE (NEW YORK, N.Y.) 1974; 147:259-62. [PMID: 4438332 DOI: 10.3181/00379727-147-38322] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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396
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397
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Suppression of isoproterenol-induced hyperglycemia by ethanol. PROCEEDINGS OF THE SOCIETY FOR EXPERIMENTAL BIOLOGY AND MEDICINE. SOCIETY FOR EXPERIMENTAL BIOLOGY AND MEDICINE (NEW YORK, N.Y.) 1974; 146:972-4. [PMID: 4423756 DOI: 10.3181/00379727-146-38230] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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398
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Comparative hyperglycemic responses to norepinephrine salbutamol and glucagon in normal and alloxan-diabetic insulin-controlled rabbits. ARCHIVES INTERNATIONALES DE PHARMACODYNAMIE ET DE THERAPIE 1974; 209:358-68. [PMID: 4441174] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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399
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Isoproterenol-induced insulin release in normal rats and hyperglycemia in alloxan-diabetic rats: a preliminary report. RESEARCH COMMUNICATIONS IN CHEMICAL PATHOLOGY AND PHARMACOLOGY 1974; 7:787-90. [PMID: 4828772] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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400
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Angiotensinase activity of dipeptidyl aminopeptidase I (cathepsin C) of rat liver. J Biol Chem 1974; 249:234-40. [PMID: 4358631] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
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