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排序方式: 共有4740条查询结果,搜索用时 15 毫秒
71.
Angelone T Quintieri AM Brar BK Limchaiyawat PT Tota B Mahata SK Cerra MC 《Endocrinology》2008,149(10):4780-4793
Circulating levels of catestatin (Cts; human chromogranin A352-372) decrease in the plasma of patients with essential hypertension. Genetic ablation of the chromogranin A (Chga) gene in mice increases blood pressure and pretreatment of Chga-null mice with Cts prevents blood pressure elevation, indicating a direct role of Cts in preventing hypertension. This notable vasoreactivity prompted us to test the direct cardiovascular effects and mechanisms of action of wild-type (WT) Cts and naturally occurring human variants (G364S-Cts and P370L-Cts) on myocardial and coronary functions. The direct cardiovascular actions of WT-Cts and human variants were determined using the Langendorff-perfused rat heart. WT-Cts dose-dependently increased heart rate and coronary pressure and decreased left ventricular pressure, rate pressure product and both positive and negative LVdP/dt. WT-Cts not only inhibited phospholamban phosphorylation, but also the inotropic and lusitropic effects of WT-Cts were abolished by chemical inhibition of beta2-adrenergic receptors, Gi/o protein, nitric oxide or cGMP, indicating involvement of beta2-adrenergic receptors-Gi/o protein-nitric oxide-cGMP signaling mechanisms. In contrast, G364S-Cts did not affect basal cardiac performance but abolished isoproterenol-induced positive inotropism and lusitropism. P370L-Cts decreased rate pressure product and inhibited only isoproterenol-induced positive inotropism and lusitropism by 70%. Cts also inhibited endothelin-1-induced positive inotropism and coronary constriction. Taken together, the cardioinhibitory influence exerted on basal mechanical performance and the counterregulatory action against beta-adrenergic and endothelin-1 stimulations point to Cts as a novel cardiac modulator, able to protect the heart against excessive sympathochromaffin overactivation, e.g. hypertensive cardiomyopathy. 相似文献
72.
73.
Impact of CD4+ Lymphocytes and HIV Infection on Anti‐Müllerian Hormone Levels in a Large Cohort of HIV‐infected and HIV‐uninfected Women 下载免费PDF全文
74.
Antoine Léotard Jessica Taytard Marion Aouate Michèle Boule Veronique Forin Pauline Lallemant-Dudek 《Annals of physical and rehabilitation medicine》2018,61(3):135-139
Objectives
Osteogenesis imperfecta (OI) is the most common genetic skeletal disorder. Extraskeletal findings are common but an association with sleep-disordered breathing (SDB) has never been described. The aim of this study was to investigate clinical features of children with OI and suspected SDB.Methods
A retrospective study of clinical records, signs of SDB and polysomnographic recordings of children with OI was performed. We paid particular attention to symptoms that could be associated with SDB in this population – scoliosis, kyphosis, vertebral arthrodesis, chest wall deformities, basilar impression, autonomy – as well as data already known to be associated with obstructive sleep apnea such as body mass index and upper-airway impairment.Results
We reviewed the clinical charts of 188 patients referred to our genetic skeletal disorders reference center for OI. Among the 15 patients (8%) with polysomnographic recordings, 12 (6.4%) had sleep-disordered breathing. We found a negative correlation between the Brief Assessment of Motor Function score and Apnea Hypopnea Index (r = ?0.68; p = 0.01) and Desaturation Index (r = ?0.62; p = 0.02). The Apnea Hypopnea Index was higher for non-walkers than walkers (mean [SD]: 6.5 [3.6] vs. 2.4 [1.5]; p = 0.02) and with type III versus IV OI. Two patients were started on continuous positive airway pressure ventilation, with clinical improvement.Conclusion
For OI children, symptoms suggesting obstructive sleep disorders should be searched for systematically, especially in children with compromised autonomy, high body mass index, trunk deformations, and severe OI type. 相似文献75.
An integrative review exploring the physical and psychological harm inherent in using restraint in mental health inpatient settings 下载免费PDF全文
Pauline Cusack PG Cert HE MSc BA Dip. SW. Sue McAndrew PhD MSc BSc Mick McKeown PhD BA DPSN RMN RGN Joy Duxbury PhD MA PG Cert HE BSc. 《International journal of mental health nursing》2018,27(3):1162-1176
In Western society, policy and legislation seeks to minimize restrictive interventions, including physical restraint; yet research suggests the use of such practices continues to raise concerns. Whilst international agreement has sought to define physical restraint, diversity in the way in which countries use restraint remains disparate. Research to date has reported on statistics regarding restraint, how and why it is used, and staff and service user perspectives about its use. However, there is limited evidence directly exploring the physical and psychological harm restraint may cause to people being cared for within mental health inpatient settings. This study reports on an integrative review of the literature exploring available evidence regarding the physical and psychological impact of restraint. The review included both experimental and nonexperimental research papers, using Cooper's (1998) five‐stage approach to synthesize the findings. Eight themes emerged: Trauma/retraumatization; Distress; Fear; Feeling ignored; Control; Power; Calm; and Dehumanizing conditions. In conclusion, whilst further research is required regarding the physical and psychological implications of physical restraint in mental health settings, mental health nurses are in a prime position to use their skills and knowledge to address the issues identified to eradicate the use of restraint and better meet the needs of those experiencing mental illness. 相似文献
76.
Clinical input of anti‐D quantitation by continuous‐flow analysis on autoanalyzer in the management of high‐titer anti‐D maternal alloimmunization 下载免费PDF全文
77.
John A. Smyth Martin Dempster Ian Warwick Pauline Wilkinson Noleen K. McCorry 《Journal of pain and symptom management》2018,55(2):496-507
Context
Effective pain management is a priority in the palliative care of advanced cancer patients. A body of research is emerging examining the factors that influence the management and experience of pain for such individuals. Identifying such factors should allow for the development of targeted interventions to improve pain management in the home while ultimately reducing unnecessary suffering for the patient.Objectives
The objective of this study was to identify relevant patient- and carer-related factors which have an effect on the pain experienced by advanced cancer patients cared for at home.Method
This is a systematic review following the Preferred Reporting Items for Systematic Reviews and Meta Analyses (PRISMA) statement guidelines. Studies were retrieved from the CINAHL, MEDLINE, and Web of Science and assessed independently by two reviewers with discrepancies assessed by a third before quality assessment and data extraction. A narrative synthesis was produced.Results
Our search strategy produced 720 hits, of which 10 studies were retained for the final analysis. The factors identified included carer knowledge of cancer pain management, carer burden, carer and patient distress, pain rating disparity, patient well-being, patient depression, patient affective experience, patient body image, and satisfaction with palliative/medical care. All factors identified are supported by only some evidence with many having only been explored in single studies.Conclusions
There is a lack of quantitative research in the area of factors influencing the experience of pain for advanced cancer patients cared for at home. Such findings would be useful in developing theories of change that would underpin interventions aimed at improving pain outcomes for this population. 相似文献78.
Optical density filters modeling media opacities cause decreased SD‐OCT retinal layer thickness measurements with inter‐ and intra‐individual variation 下载免费PDF全文
79.
Hagen Sjard Bachmann Werner Meier Andreas du Bois Rainer Kimmig Jan Dominik Kuhlmann Winfried Siffert Jalid Sehouli Kerstin Wollschlaeger Jens Huober Peter Hillemanns Alexander Burges Barbara Schmalfeldt Behnaz Aminossadati Pauline Wimberger 《British journal of clinical pharmacology》2015,80(5):1139-1148