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排序方式: 共有86条查询结果,搜索用时 31 毫秒
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Pawel Namsolleck Chiara Recarti Sébastien Foulquier Ulrike Muscha Steckelings Thomas Unger 《Current hypertension reports》2014,16(2):1-10
The converging clinical effectiveness of mineralocorticoid receptor antagonists (MRAs) Spironolactone and Eplerenone has made their safety profiles/cost-effectiveness key determinants of “agents of choice” across a broad range of clinical indications. The clinical biology of the aldosterone molecule and its range of effects in varied organ systems have been well elucidated from recent mechanistic and systematic studies. Clinical experience with Spironolactone is well established, as is its adverse effects profile. The range of adverse effects experienced with Spironolactone subsequently led to its modification and synthesis of Eplerenone. Recent published reports have confirmed lower prevalence rates of sex-related adverse effects attributable to Eplerenone compared to Spironolactone. There is, however, not much to choose between these agents in regards to other adverse effects including hyperkalemia and kidney failure. As was the experience with Spironolactone, as more robust observational data on Eplerenone accrues, it is possible that the real-life experience of its adverse profile may be discordant with that reported by randomized controlled clinical trials (RCTs). In addition, its metabolism by the vulnerable and highly polymorphic cytochrome dependent pathway also makes it susceptible to various drug interactions. The potential implication of the latter (including morbidity and mortality) may take years to evolve. 相似文献
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Colin Sumners Antonio Augusto Peluso Andreas Houe Haugaard Jesper Bork Bertelsen Ulrike Muscha Steckelings 《Acta physiologica (Oxford, England)》2019,227(1)
The angiotensin AT2‐receptor is a main receptor of the protective arm of the renin‐angiotensin system. Understanding of this unconventional G‐protein coupled receptor has significantly advanced during the past decade, largely because of the availability of a selective non‐peptide AT2‐receptor agonist, which allowed the conduct of a multitude of studies in animal disease models. This article reviews such preclinical studies that in their entirety provide strong evidence for an anti‐fibrotic effect mediated by activation of the AT2‐receptor. Prevention of the development of fibrosis by AT2‐receptor stimulation has been demonstrated in lungs, heart, blood vessels, kidney, pancreas and skin. In lungs, AT2‐receptor stimulation was even able to reverse existing fibrosis. The article further discusses intracellular signalling mechanisms mediating the AT2‐receptor‐coupled anti‐fibrotic effect, including activation of phosphatases and subsequent interference with pro‐fibrotic signalling pathways, induction of matrix‐metalloproteinases and hetero‐dimerization with the AT1‐receptor, the TGF‐βRII‐receptor or the RXFP1‐receptor for relaxin. Knowledge of the anti‐fibrotic effects of the AT2‐receptor is of particular relevance because drugs targeting this receptor have entered clinical development for indications involving fibrotic diseases. 相似文献
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We evaluated 91 episodes of fever in 46 profoundly neutropenic children with cancer, in a search for any symptom, sign or laboratory test that would serve to identify patients with septicemia and differentiate them from those in no immediate need of prompt antimicrobial therapy. Seventeen episodes (19%) were bacteremias, 59 (64%) were suspected septic infections, 9 (10%) were focal bacterial infections and 6 (7%) proved not to be bacterial infections. We were unable to detect any parameter, either on admission or after two days of antimicrobial therapy (except for blood culture findings), that would be helpful in differentiating bacteremia from an episode not of bacterial origin. We focused on serum levels of C reactive protein and found them unreliable on an individual level. Prompt institution of antimicrobial therapy at the occurrence of fever results in low mortality, but does not allow assignment of cases to different categories. 相似文献
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ANITA APERIA OVE BROBERGER Göran ELINDER PETER HERIN ROLF ZETTERSTRöUM 《Acta paediatrica (Oslo, Norway : 1992)》1981,70(2):183-187
ABSTRACT. Aperia, A., Broberger, B., Klinder, G., Herin, P. and Zetterström, R. (Department of Paediatrics, Karolinska Institute, St. Göran's Children's Hospital, Stockholm and Huddinge Hospital, Huddinge, Sweden). Postnatal deveopment of renal function in preterm and full-term infants. Acta Paediatr Scand, 70:183, 1981. –This study has been designed to examine the effect of gestational age (GA) on the postnatal development of renal function and has been performed in pre-term (PT) infants (GA=30–34 weeks) and in full-term (FT) infants (GA=39–41 weeks). Postnatal age has ranged from 1–35 days. From 8 hour urine samples collected after spontaneous voiding and a capillary blood sample, determinations have been made of the clearance of creatinine (CCr), the fractional excretion of β2-microglobulin (FEβ2) and the fractional excretion of sodium (FENa). In some infants receiving fluid parenterally, simultaneous determinations were made of the clearance of creatinine and inulin. As judged from this study, CCr is a reliable indicator of the glomerular filtration rate (GFR). GFR was almost the same in newborn PT and FT, but from 0.3–1 week of age GFR increased significantly more rapidly in FT than in PT. From 1–5 weeks of age GFR increased at approximately the same rate in PT and FT infants. The absolute value for GFR in 3–5 weeks old infants was lower in PT than in FT. FEβ2 was higher in PT than in FT infants during the entire first month of life and FENa was higher in PT than in FT infants during the first week of life, suggesting a glomerular tubular imbalance at least at the level of the proximal tubule in PT infants. It is concluded that different stages of maturation will alter the preconditions for the renal adaptation to extrauterine life during at least the first month of life. Therefore special attention must be paid to the limited renal function in PT during their entire first month of life. 相似文献
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Prostatic evaluation by transrectal sonography with histopathologic correlation: the echopenic appearance of early carcinoma 总被引:6,自引:0,他引:6
Fifty-two patients with clinical stage A and B carcinomas of the prostate were imaged by ultrasound (US) transrectally with a 5-MHz linear array transducer and transabdominally with a 3-MHz sector scanner prior to radical prostatectomy. The fresh specimens of 44 prostate glands were scanned in a water bath with a 5-MHz linear array transducer in multiple planes. In all cases, histopathologic correlation was obtained. Prostatic carcinoma presented as an echopenic lesion in 54% of the specimens, as a slightly hypoechoic area in 22%, and could not be identified in 24% because of its isoechoic characteristics. In contrast to many previous reports, no instance of echogenic cancer was observed. 相似文献
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Su-A. KIM Sang-Won UM Jae-Uk SONG Kyeongman JEON Won-Jung KOH Gee Young SUH Man Pyo Jung O. Jung KWON Jong Heon PARK Chin A. YI Joungho HAN Hojoong KIM 《Respirology (Carlton, Vic.)》2010,15(1):150-154
Background and objective: Bronchoscopic resection of endobronchial hamartomas has been reported to have a favourable outcome. This study describes the bronchoscopic features of endobronchial hamartoma and reports the clinical outcome of bronchoscopic intervention. Methods: A retrospective analysis was conducted of patients with histologically proven endobronchial hamartomas, diagnosed in the 10‐year period 1999–2009 to elucidate the clinical, radiological and bronchoscopic features of hamartoma and to describe the clinical outcomes. Results: Seventeen of the 135 patients with pulmonary hamartomas were diagnosed as having endobronchial hamartomas. CXR was abnormal in 11 of the 17 patients. On chest CT (n = 16), the median diameter of the lesion was 15.6 mm. Calcification and areas of focal fat in the lesion, the diagnostic CT findings of pulmonary hamartoma, were found in two of 16 (12.5%) patients. At bronchoscopy (n = 16), all tumours had a mass appearance and most were smooth surfaced round masses (50.0%) with 18.8% having a ‘stalk’. Bronchoscopic forceps biopsies were performed in 13 patients, which resulted in five patients (38.5%) being diagnosed with endobronchial hamartoma. Fifteen patients were treated with rigid or flexible bronchoscopic resection, one had lobectomy, and one had no intervention. No procedure‐related mortalities or late complications developed. Conclusions: Bronchoscopic intervention appears to be a safe and effective method to resect endobronchial hamartomas. 相似文献
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