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41.
42.
Peasgood Tessa Chang Jen-Yu Mir Robina Mukuria Clara Powell Philip A. 《Quality of life research》2021,30(7):2097-2108
Quality of Life Research - Uncertainties exist in how respondents interpret response options in patient-reported outcome measures (PROMs), particularly across different domains and for different... 相似文献
43.
Julien Favresse Constant Gillot Jean-Louis Bayart Clara David Germain Simon Loris Wauthier Mélanie Closset Jean-Michel Dogné Jonathan Douxfils 《Journal of medical virology》2023,95(1):e28164
Evidence about the long-term persistence of the booster-mediated immunity against Omicron is mandatory for pandemic management and deployment of vaccination strategies. A total of 155 healthcare professionals (104 COVID-19 naive and 51 with a history of SARS-CoV-2 infection) received a homologous BNT162b2 booster. Binding antibodies against the spike protein and neutralizing antibodies against Omicron were measured at several time points before and up to 6 months after the booster. Geometric mean titers of measured antibodies were correlated to vaccine efficacy (VE) against symptomatic disease. Compared to the highest response, a significant 10.2- and 11.5-fold decrease in neutralizing titers was observed after 6 months in participants with and without history of SARS-CoV-2 infection. A corresponding 2.5- and 2.9-fold decrease in binding antibodies was observed. The estimated T1/2 of neutralizing antibodies in participants with and without history of SARS-CoV-2 infection was 42 (95% confidence interval [CI]: 25–137) and 36 days (95% CI: 25–65). Estimated T1/2 were longer for binding antibodies: 168 (95% CI: 116–303) and 139 days (95% CI: 113–180), respectively. Both binding and neutralizing antibodies were strongly correlated to VE (r = 0.83 and 0.89). However, binding and neutralizing antibodies were modestly correlated, and a high proportion of subjects (36.7%) with high binding antibody titers (i.e., >8434 BAU/ml) did not have neutralizing activity. A considerable decay of the humoral response was observed 6 months after the booster, and was strongly correlated with VE. Our study also shows that commercial assays available in clinical laboratories might require adaptation to better predict neutralization in the Omicron era. 相似文献
44.
45.
Maximiano Vásquez R Roca Suárez A Ramírez Chamorro F de Alba López JR Gordón Laporte R 《Actas urologicas espa?olas》1999,23(9):814-817
Presentation of one case of scrotal hernia in a man of 64 years old patient. Diagnosed by cistography and ultrasound and treated by herniorraphy and posterior transuretral litolaplaxy of a vesical litiasis and RTU of prostate. Postoperative urography showed normal vesical morphology. 相似文献
46.
Velázquez S Tuñón V Jimeno ML Chamorro C De Clercq E Balzarini J Camarasa MJ 《Journal of medicinal chemistry》1999,42(25):5188-5196
47.
M. D’Amico Clara Di Filippo Ferdinando Esposito Francesco Rossi Amelia Filippelli 《Naunyn-Schmiedeberg's archives of pharmacology》1999,359(6):471-476
We used in vitro autoradiography to identify the endothelin-1 receptor subtype(s) in the nucleus raphe obscurus of rats.
These studies showed dense binding of [125I]PD151242 (for endothelin ETA receptors), while tissues incubated with [125I]BQ3020 (for endothelin ETB receptors) had low binding. In addition, we examined the effects of the endothelin receptor antagonists FR 139317 (endothelin
ETA receptor-selective antagonist), SB 209670 (endothelin ETA/ETB receptor-non-selective antagonist) and BQ-788 (endothelin ETB receptor-selective antagonist) on the blood pressure responses following administration of endothelin-1 into the nucleus
raphe obscurus. The basal mean arterial blood pressure (MABP) of the rats was 110 ± 7 mmHg (n = 5). This was decreased in a dose-dependent manner by endothelin-1 (0.1, 1 and 10 pmol) microinjected into the nucleus
raphe obscurus. This effect occurred within 1–6 s and recovered within 4 ± 1.2 min at a dose of 10 pmol. The doses of 0.1
pmol and 1 pmol ET-1 had responses which lasted 1 ± 0.4 min and 2 ± 0.2 min, respectively. Small decreases in heart rate accompanied
the MAP responses to endothelin-1. For instance, the heart rate decreased by 16 ± 4 beats min–1 after 10 pmol endothelin-1 (control, 366 ± 6 beats min–1, n = 5). Decreases in blood pressure induced by endothelin-1 were greatly reduced by pre-administration to the nucleus raphe
obscurus of FR139317 (5 nmol/rat) or SB209670 (3 nmol/rat; 97 ± 7% and 95 ± 6%, P < 0.01, n = 5, respectively), but were not affected by BQ-788 (50 nmol/rat; 8 ± 3%, P > 0.05, n = 5). The antagonists did not influence heart rate when injected to the nucleus raphe obscurus prior to endothelin-1. FR139317
(0.5 nmol) and SB209670 (0.3 nmol) had no effects on endothelin-induced changes in arterial blood pressure. Therefore, the
autoradiographic study showed that there are binding sites for ET-1 within the nucleus raphe obscurus of rats, which are predominantly
of ETA type. The in vivo study showed that ETA receptors are the predominant mediators of depressor responses induced by endothelin-1 injected into this nucleus.
Received: 6 August 1998 / Accepted: 16 February 1999 相似文献
48.
Ceballos G Figueroa L Rubio I Gallo G Garcia A Martinez A Yañez R Perez J Morato T Chamorro G 《Journal of cardiovascular pharmacology》1999,33(5):691-697
Gonadal steroid hormones influence vascular tone and the development of hypertension. There are sex differences in the incidence of cardiovascular diseases, and great attention has been placed on the study of estrogen cardiovascular effects. However, there are only a few reports on the effects of testosterone on the vasculature. It is commonly accepted that the mechanism of the action of steroid hormones on target tissues is mediated through the binding of hormones to cytoplasmic or nuclear receptors. However, some studies indicate that steroid action can be extremely rapid and therefore unlikely to be through a genomic mechanism. The purpose of this study was to assess the effect of intravascularly confined testosterone on an isolated rat heart to demonstrate acute and possibly nongenomic effects of the steroid. Our results show that testosterone blocked the adenosine vasodilator effect and increased vascular resistance, even when its presence was restricted to the coronary vascular lumen. These effects were exerted rapidly and possibly through nongenomic mechanisms. 相似文献
49.
Frequency of the ATM IVS10-6T→G variant in Australian multiple-case breast cancer families 下载免费PDF全文
50.
Association of gestational diabetes with abnormal maternal vascular endothelial function 总被引:1,自引:0,他引:1
Gregory A. Knock Research Assistant rew L. McCarthy Consultant Clara Lowy Consultant Lucilla Poston Professor 《BJOG : an international journal of obstetrics and gynaecology》1997,104(2):229-234
Objective To evaluate vascular endothelial function in isolated small arteries from women with gestational diabetes.
Methods Small subcutaneous arteries (mean luminal diameter ∼ 250μm) were dissected from biopsies obtained at caesarean section in 14 normotensive women with gestational diabetes and in 18 normotensive nondiabetic pregnant women. Vascular function was determined after mounting the arteries on a small vessel myograph.
Results Pre-constricted arteries from gestational diabetic pregnant women demonstrated poor relaxation to acetylcholine, an endothelium-dependent vasodilator (pEC50 , mean [SE], 6.98 [0.10] vs normal pregnant, 7.28 [0.08], P < 0.03 ; % maximum relaxation, median [range], 88.2 [42.4–994] vs normal pregnant 94.2 [71.8–100.0], P < 0.01 ). In the presence of indomethacin relaxation to acetylcholine was similar in both groups suggesting a deficiency in dilator prostaglandin synthesis in the arteries from the diabetic women. The nitric oxide synthase inhibitor N -monomethyl-L-arginine further reduced sensitivity of arteries to acetylcholine but to a similar degree in both normal pregnant and gestational diabetic women. Relaxation to sodium nitroprusside, an indicator of sensitivity of the vascular smooth muscle to nitric oxide, was similar in both groups.
Conclusions Maternal vascular endothelial dysfunction may contribute to the increased incidence of cardiovascular disorders in women with gestational diabetes. 相似文献
Methods Small subcutaneous arteries (mean luminal diameter ∼ 250μm) were dissected from biopsies obtained at caesarean section in 14 normotensive women with gestational diabetes and in 18 normotensive nondiabetic pregnant women. Vascular function was determined after mounting the arteries on a small vessel myograph.
Results Pre-constricted arteries from gestational diabetic pregnant women demonstrated poor relaxation to acetylcholine, an endothelium-dependent vasodilator (pEC
Conclusions Maternal vascular endothelial dysfunction may contribute to the increased incidence of cardiovascular disorders in women with gestational diabetes. 相似文献