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  • 1
    Electronic Resource
    Electronic Resource
    Patient acceptability of laser and cold coagulation therapy for pre-malignant disease of the uterine cervix (1991)
    Oxford, UK : Blackwell Publishing Ltd
    BJOG 98 (1991), S. 0 
    Details
    ISSN: 1471-0528
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Objective— To determine patient acceptability of cold coagulation and laser treatment for cervical intraepithelial neoplasia (CIN).Design— A prospective study with alternate allocation.Setting— Teaching hospital in London.Subjects— 155 women requiring treatment for CIN.Main outcome measures— Time taken to complete the treatment; visual analogue scores for pain experienced, anxiety felt and acceptability of the procedure; post treatment bleeding and discharge, and follow-up smear.Results— Cold coagulation treatment was found to be quicker and less painful than laser treatment, there were no other significant differences between the two methods of treatment.Conclusion— Cold coagulation is a more acceptable form of treatment for CIN than laser.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1471-0528.1991.tb15372.x
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  • 2
    Electronic Resource
    Electronic Resource
    Absorption of irrigating fluid during laser photocoagulation of the endometrium in the treatment of menorrhagia (1989)
    Oxford, UK : Blackwell Publishing Ltd
    BJOG 96 (1989), S. 0 
    Details
    ISSN: 1471-0528
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Twelve women undergoing laser ablation of the uterus for menorrhagia were studied by haemodynamic, biochemical and haematological indices including radioisotope dilution studies of plasma volume to assess the degree of fluid absorption into the circulation during laser surgery. There was a significant rise in central venous pressure and serum chloride and a significant decrease in plasma protein, albumin and haematocrit. Absorption of the irrigating fluid used was demonstrated and in one woman whose case history is illustrated this was excessive.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1471-0528.1989.tb02396.x
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  • 3
    Electronic Resource
    Electronic Resource
    Effects of Reduced Tillage and Multiple Cropping on Plant Diseases (1981)
    Palo Alto, Calif. : Annual Reviews
    Annual Review of Phytopathology 19 (1981), S. 167-187 
    Details
    ISSN: 0066-4286
    Source: Annual Reviews Electronic Back Volume Collection 1932-2001ff
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Biology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1146/annurev.py.19.090181.001123
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  • 4
    Electronic Resource
    Electronic Resource
    THE EFFECTS OF CALCIUM ANTAGONISTS ON BLOOD PRESSURE AND RESPONSES TO α-ADRENOCEPTOR AGONISTS IN HYPERTENSIVE RABBITS (1987)
    Oxford, UK : Blackwell Publishing Ltd
    Clinical and experimental pharmacology and physiology 14 (1987), S. 0 
    Details
    ISSN: 1440-1681
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: SUMMARY1. The effects of the calcium antagonists verapamil and nifedipine on mean arterial blood pressure, heart rate and pressor responses to a range of α-adrenoceptor agonists were examined in male normotensive New Zealand white rabbits and in rabbits with perinephritis hypertension.2. Verapamil and nifedipine caused a greater fall in mean arterial pressure in hypertensive compared to normotensive rabbits both when the fall was expressed as an absolute and as a percentage change. Effects on heart rate were similar in normotensive and hypertensive animals.3. Pressor responses to phenylephrine were attenuated by nifedipine and verapamil in normotensive and hypertensive rabbits. Pressor responses to alphamethyl noradrenaline were also attenuated by nifedipine, but pressor responses to BHT 920 were not significantly altered by either calcium antagonist in normotensive or hypertensive rabbits at the dose used. Thus the calcium antagonists had a greater effect on α1-than α2-adrenoceptor mediated responses in both normotensive and hypertensive rabbits.4. Hypertensive animals showed an increased responsiveness to phenylephrine and alphamethyl noradrenaline but not BHT 920 compared to normotensives. This difference remained after treatment with both the calcium antagonists.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1440-1681.1987.tb00960.x
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  • 5
    Electronic Resource
    Electronic Resource
    Influence of HSP27 and steroid receptor status on provera sensitivity, DNA-ploidy and survival of females with endometrial cancer (1995)
    Suite 500, 5th Floor, 238 Main Street, Cambridge, Massachussetts 02142, USA : Blackwell Science Inc.
    International journal of gynecological cancer 5 (1995), S. 0 
    Details
    ISSN: 1525-1438
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Heat shock protein (HSP) 27, estradiol (ER), progesterone (PR), isocitric dehydrogenase and DNA-ploidy have been measured in 152 endometrial adenocarcinomas. These parameters have also been related to each other and to tumor grade and overall patient survival. HSP27 was assessed immunohistochemically and ploidy by FACS analysis, whilst biochemical methods were used for the other assays. HSP27 was significantly correlated with ER but not PR, grade or ploidy. Both ER and PR were related to tumor grade but not ploidy. Provera (2–14 days, mean 8) had no apparent effect on HSP27 staining but induced isocitric dehydrogenase in 70% of the tumors. Provera decreased ER (64%) and PR (70%) content in originally positive tumors. The presence of either HSP27, ER or PR in the pretreatment sample was significantly associated with provera induction of isocitric dehydrogenase activity; neither tumor grade nor ploidy predicted for induction of this enzyme. High levels of either HSP27, ER, PR or provera-induced isocitric dehydrogenase and diploid DNA were associated with good overall survival, whereas aneuploidy was linked with poor survival.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1046/j.1525-1438.1995.05020094.x
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  • 6
    Electronic Resource
    Electronic Resource
    Effects of (±)-abscisin II on seed germination in four species of grasses (1967)
    Springer
    Planta 75 (1967), S. 28-32 
    Details
    ISSN: 1432-2048
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Abscisin II (Ab II) inhibited germination of seeds of four species of grasses. The effects ranged from slight retardation of the onset of germination from the lowest concentration (0.1 mg/l) to complete inhibition throughout the 17-day test period from the highest concentration (10 mg/l). Intermediate concentrations induced some abnormalities of development. Seed viability was not destroyed even by the highest Ab II concentration applied, normal development and growth resuming when seeds were transferred from abscisin solutions to water.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00380836
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  • 7
    Electronic Resource
    Electronic Resource
    The recovery of α-adrenoceptor function and binding sites after phenoxybenzamine (1984)
    Springer
    Naunyn-Schmiedeberg's archives of pharmacology 325 (1984), S. 34-41 
    Details
    ISSN: 1432-1912
    Keywords: Phenoxybenzamine ; α-Adrenoceptors ; Half life of recovery ; Pressor responses ; Contractile responses ; Radioligand binding
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The recovery of peripheral α-adrenoceptor function and binding sites was studied in male New Zealand white rabbits after treatment with the irreversible adrenoceptor antagonist phenoxybenzamine. Phenoxybenzamine (5 mg/kg) was administered intravenously and the animals studied 30 min to 12 days later. Pressor dose response curves to intravenous phenylephrine, noradrenaline and guanabenz were constructed in vivo in conscious animals. The contractile response of abdominal aorta and renal artery to phenylephrine and noradrenaline was examined in vitro and the recovery of specific prazosin and clonidine binding to spleen membranes investigated in radioligand binding studies. The half life (t 1/2) for recovery of maximum pressor response in vivo ranged from 0.9±0.2 days for phenylephrine to 1.4±0.1 days for guanabenz. The t 1/2 for recovery of ED50 was not significantly different to t 1/2 for recovery of maximum pressor response and ranged from 0.8±0.2 days for noradrenaline to 1.3±0.3 days for phenylephrine. Half life for recovery of maximum response and EC50 in the isolated tissues was similar to that obtained in vivo for recovery of pressor responses and ranged from 0.4±0.1 days for the EC50 of noradrenaline in the renal artery to 1.2±0.6 days for maximum response to phenylephrine in the abdominal aorta. The rate of recovery of specific clonidine binding did not differ significantly from the rate of recovery of pressor responses to the α 2-selective agonist guanabenz. t 1/2 for maximum number of specific clonidine binding sites, B max was 1.6±0.9 days. However t 1/2 for recovery of specific prazosin binding was significantly longer than recovery of responses to phenylephrine and noradrenaline, t 1/2 for B max was 3.6 ±0.1 day.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00507051
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  • 8
    Electronic Resource
    Electronic Resource
    Absence of an effect of mianserin on the actions of clonidine or methyldopa in hypertensive patients (1983)
    Springer
    European journal of clinical pharmacology 24 (1983), S. 15-19 
    Details
    ISSN: 1432-1041
    Keywords: hypertension ; mianserin ; clonidine ; methyldopa ; depression ; α2 receptors ; interaction
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Medicine
    Notes: Summary The concurrent administration of tricyclic antidepressants has been shown in man to result in a clinically significant impairment of the antihypertensive effect of clonidine. This interaction is thought to be related to competition for central α2 receptors where clonidine acts as an agonist and the tricyclics act as antagonists. Although it seems to cause less cardiovascular effects than tricyclic antidepressants, the tetracyclic antidepressant, mianserin also has been reported to be an α receptor antagonist and may, therefore, also interfere with the antihypertensive activity of centrally-acting drugs. This study investigates the effects of acute and chronic mianserin administration in patients with essential hypertension established on long term treatment with either clonidine or methyldopa. The first dose of mianserin was not associated with an increase in blood pressure and during a further two weeks of mianserin therapy there were no significant alterations in blood pressure, supine or erect. Similarly, mianserin did not alter heart rate either after acute or after chronic administration. Mianserin itself had a sedative effect but there was no interference with the sedation attributable to clonidine or methyldopa. Mianserin caused no reduction in salivary flow and did not influence the reduced saliva production caused by clonidine. Both clonidine and methyldopa are associated with a reduction in sympathetic outflow but there was no evidence in this study of any further change in plasma noradrenaline or 24 h urinary catecholamine excretion. This study demonstrates that if mianserin is given acutely or chronically, it does not interfere with the effects of the centrally acting antihypertensive drugs, clonidine and methyldopa. Mianserin may therefore be a suitable antidepressant for patients receiving these antihypertensive agents if drug treatment for depression is indicated.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00613921
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  • 9
    Electronic Resource
    Electronic Resource
    The effect of the calcium antagonist nifedipine on pressor and aldosterone responses to angiotensin II in normal man (1983)
    Springer
    European journal of clinical pharmacology 24 (1983), S. 315-321 
    Details
    ISSN: 1432-1041
    Keywords: aldosterone ; flurbiprofen ; nifedipine ; blood pressure ; calcium flux ; prostaglandins
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Medicine
    Notes: Summary The effects of the calcium entry blocker nifedipine on blood pressure (BP) and the pressor and aldosterone responses to graded infusions of angiotensin II were studied in normal subjects using 3 protocols. Study 1 was a randomised double-blind placebo-controlled trial of nifedipine (20 mg p.o.) on supine and erect BP in 9 subjects. There was a highly significant fall in BP: (8±4 mmHg; mean±SDM;p〈0.001) with maximum changes occurring 30 min after drug administration. Significant reciprocal changes in pulse rate were observed. These changes were not altered by prior administration of the prostaglandin synthetase inhibitor flurbiprofen (100 mg). In Study 2, 6 subjects were given nifedipine (20 mg) or no treatment mid-way between 2 identical graded infusions of angiotensin II (5, 10 and 20 ng/kg/min) separated by an interval of 1 h on each of 2 study days, and blood pressure and aldosterone responses were measured. There was a significant attenuation of both pressor (p〈0.05) and aldosterone (p〈0.05) responses. The changes in aldosterone responses were not due to changes in plasma renin, potassium or adrenocorticotrophin. In study 3 the pressor and aldosterone responses to angiotensin II (2, 5, 10 and 20 ng/kg/min) were studied after 3 days treatment with nifedipine (20 mg thrice daily) or placebo. Pressor dose response curves to both angiotensin II and noradrenaline were shifted in parallel to the right, but not significantly, and aldosterone responses to angiotensin II were unchanged by nifedipine. These results show that nifedipine may decrease BP in normal subjects by decreasing pressor and aldosterone responses to angiotensin II and that the aldosterone response to angiotensin II in man is possibly calcium-dependent.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00610047
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  • 10
    Electronic Resource
    Electronic Resource
    Haemodynamic, metabolic, and lymphocyte beta2-adrenoceptor changes following chronic beta-adrenoceptor antagonism (1987)
    Springer
    European journal of clinical pharmacology 32 (1987), S. 237-243 
    Details
    ISSN: 1432-1041
    Keywords: beta-antagonists ; beta2-adrenoceptor ; selectivity ; intrinsic sympathomimetic activity ; adrenaline hypokalaemia ; vasidilatation ; receptor up-regulation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Medicine
    Notes: Summary We have examined the effects of 7 days treatment with beta adrenoceptor antagonists in 8 healthy volunteers in a placebo controlled, crossover study. We investigated three beta-adrenoceptor antagonists (atenolol, oxprenolol, and propranolol), which have differing profiles of selectivity and partial agonist properties (intrinsic sympathomimetic activity, ISA). We studied adrenaline-induced hypokalaemia, the vasodilator response to an infusion of adrenaline (0.06 µg·kg−1·min−1 for 90 min), and lymphocyte beta2-adrenoceptor number, determined by (-) [125I]-iodocyanopindolol binding, and measured these variables both before and after 7 days of treatment. The beta2-mediated depressor response to adrenaline infusion was abolished by propranolol and oxprenolol but persisted after atenolol. In contrast, the hypokalaemia induced by adrenaline was abolished by all three beta-blockers. Lymphocyte beta2-adrenoceptor number increased significantly following propranolol treatment, but not after oxprenolol for atenolol. We conclude that up-regulation of lymphocyte beta2-adrenoceptors is dependent on beta2-receptor blockade and is modified by ISA. The reversal of the hypokalaemic response by atenolol suggests that beta1 receptors may contribute to the former effect. Alternatively, since different populations of beta2-adrenoceptors differ in their susceptibility to antagonists there may also be differences in agonist coupling to beta2-responses between tissues.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00607569
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