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排序方式: 共有78条查询结果,搜索用时 15 毫秒
1.
G. Fatati M. L. Amerio M. Bacci F. Brunetti A. Caretto L. Casali S. Coaccioli F. D’Andrea E. Del Toma M. Di Sapio D. Domeniconi M. Kob F. Leonardi E. Mirri P. Nanni A. Paci P. Pallini G. Ronzani A. R. Sabbatini S. G. Sukkar M. Tagliaferri G. Vincenzoni M. A. Fusco 《Mediterranean journal of nutrition and metabolism》2009,1(3):203-206
2.
Induction of human airway smooth muscle apoptosis by neutrophils and neutrophil elastase 总被引:2,自引:0,他引:2
Oltmanns U Sukkar MB Xie S John M Chung KF 《American journal of respiratory cell and molecular biology》2005,32(4):334-341
Neutrophils are an important component of airway inflammation and may interact with human airway smooth muscle cells (HASMC). We investigated the effect of neutrophils and of neutrophil-derived proteases on HASMC survival. When co-incubated with neutrophils (0.1-1 x 10(6) cells/ml), attachment of human ASMC was reduced to 12.3 +/- 4.3% compared with untreated controls after 72 h. HASMC showed nuclear condensation and fragmentation (41.6 +/- 8.1% compared with baseline of 3.1 +/- 0.4%), and the biochemical markers of apoptosis, annexin V binding (9.7 +/- 0.7%; baseline 1.1 +/- 0.3%) and cleaved caspase-3 expression, were observed. The proteolytic activity released by neutrophils was essential for the proapoptotic effect because inhibition of elastase activity by alpha(1)-antitrypsin and MeOSuc-Ala-Ala-Pro-Ala-CMK (MSACK) reduced HASMC apoptosis. Human neutrophil elastase (0.1-3 microg/ml) induced apoptosis of HASMC, as well as other neutrophil serine proteases, cathepsin G, and proteinase 3. Fibronectin degradation products were present in HASMC supernatants exposed to neutrophil-conditioned media and to neutrophil elastase. The local release of proteases from neutrophils present in airway smooth muscle cells may lead to HASMC apoptosis as a result of matrix degradation and loss of cell attachment. This may limit pathologic changes such as ASMC hyperplasia and extracellular matrix deposition seen in airway remodeling. 相似文献
3.
Andrea Kleiner Barbara Cum Livia Pisciotta Ivan Raffaele Cincione Ludovica Cogorno Amalia Prigione Antonio Tramacere Andrea Vignati Luca Carmisciano Samir Giuseppe Sukkar 《Nutrients》2022,14(15)
A eucaloric very low carbohydrate diet (EVLCD) is a diet with a daily caloric intake equal to the total daily energy expenditure (TDEE) with a carbohydrate content of <50 g/day. The literature on very low carbohydrate diets (VLCD) in type 1 diabetes (DM 1) is limited, although recently published scientific studies have highlighted their safety and efficacy in managing DM 1. In this retrospective analysis, we report the clinical data of 33 patients affected by DM 1 carrying out insulin therapy who switched voluntarily from their usual diet (high carb, low fat) to an EVLCD. Our aim is to evaluate the glycemic control, the amount of insulin needed in order to maintain glycemic control and safety of EVLCD. The switch improved glycemic control (mean glycated hemoglobin decreased from 8.3% to 6.8% (p < 0.01). The number of patients who reached a glycated hemoglobin value of <7% increased statistically from 12% to 57% (p < 0.01), and there was a statistically significant decrease (p < 0.01) in the units of daily insulin (from 36.7± 14.9 IU to 28.9 ±9.1 IU) A reduction from 54% to 24% in clinical level 2 hypoglycemia episodes was reported. No cases of severe hypoglycemia or ketoacidosis were observed. The results of the study support that EVLCD in DM 1 seems safe and effective when adopted under tight medical supervision. 相似文献
4.
Maria B Sukkar Md Ashik Ullah Wan Jun Gan Peter AB Wark Kian Fan Chung J Margaret Hughes Carol L Armour Simon Phipps 《British journal of pharmacology》2012,167(6):1161-1176
Asthma and chronic obstructive pulmonary disease (COPD) are heterogeneous inflammatory disorders of the respiratory tract characterized by airflow obstruction. It is now clear that the environmental factors that drive airway pathology in asthma and COPD, including allergens, viruses, ozone and cigarette smoke, activate innate immune receptors known as pattern-recognition receptors, either directly or indirectly by causing the release of endogenous ligands. Thus, there is now intense research activity focused around understanding the mechanisms by which pattern-recognition receptors sustain the airway inflammatory response, and how these mechanisms might be targeted therapeutically. One pattern-recognition receptor that has recently come to attention in chronic airways disease is the receptor for advanced glycation end products (RAGE). RAGE is a member of the immunoglobulin superfamily of cell surface receptors that recognizes pathogen- and host-derived endogenous ligands to initiate the immune response to tissue injury, infection and inflammation. Although the role of RAGE in lung physiology and pathophysiology is not well understood, recent genome-wide association studies have linked RAGE gene polymorphisms with airflow obstruction. In addition, accumulating data from animal and clinical investigations reveal increased expression of RAGE and its ligands, together with reduced expression of soluble RAGE, an endogenous inhibitor of RAGE signalling, in chronic airways disease. In this review, we discuss recent studies of the ligand–RAGE axis in asthma and COPD, highlight important areas for future research and discuss how this axis might potentially be harnessed for therapeutic benefit in these conditions. 相似文献
5.
Health‐related quality of life in survivors of acute kidney injury: The Prolonged Outcomes Study of the Randomized Evaluation of Normal versus Augmented Level Replacement Therapy study outcomes
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Amanda Y Wang Rinaldo Bellomo Alan Cass Simon Finfer David Gattas John Myburgh Steve Chadban Yoichiro Hirakawa Toshiharu Ninomiya Qiang Li Serigne Lo Federica Barzi Louisa Sukkar Meg Jardine Martin P Gallagher POST‐RENAL Study Investigators the ANZICS Clinical Trials Group 《Nephrology (Carlton, Vic.)》2015,20(7):492-498
6.
Sukkar MB Wood LG Tooze M Simpson JL McDonald VM Gibson PG Wark PA 《The European respiratory journal》2012,39(3):721-729
The receptor for advanced glycation end-products (RAGE) is a pattern-recognition receptor involved in the host response to injury, infection and inflammation. It is a membrane receptor, but also has soluble forms (sRAGE). Deficiencies in sRAGE are linked to heightened inflammation in various chronic conditions. We determined whether airway and systemic levels of sRAGE and the RAGE ligands HMGB1 (high-mobility group box-1) and serum amyloid A (SAA) are related to neutrophilic inflammation in asthma and chronic obstructive pulmonary disease (COPD). Bronchial lavage fluid from subjects with moderate-to-severe persistent asthma (n = 16) or COPD (n = 37), or from healthy controls (n = 18), was analysed for neutrophils, total sRAGE, endogenous secretory RAGE (esRAGE), HMGB1 and SAA. We also determined systemic levels of sRAGE in a separate group of asthmatic (n = 101) and COPD (n = 34) subjects. Subjects with neutrophilic asthma or COPD had undetectable levels of lung sRAGE, while levels of sRAGE in asthma/COPD without neutrophilia were similar to those in controls. Systemic sRAGE was significantly decreased in subjects with neutrophilic asthma or COPD compared with those without airway neutrophilia. There was significant positive correlation between total sRAGE and esRAGE in the lung and systemically. HMGB1 levels were similar in all subject groups, while SAA was below detectable levels. Neutrophilic airway inflammation in asthma and COPD is associated with reduced sRAGE. 相似文献
7.
Mohammed Aliya Elamin Sukkar Mohammed Youseif Hamid Azhari Mohammed 《African health sciences》2020,20(1):266
BackgroundObesity in the Sudan is increasing at alarming rate with the tendency of reaching an epidemic proportion in women. It is commonly associated with type 2 diabetes (T2D). Some adipokine hormones such as resistin are associated with obesity.ObjectivesTo study how the levels of resistin, ghrelin and insulin are associated with obesity,fat distribution and (T2D) and to ascertain any interrelationships between them.Subjects and methods150 women, age ≥18 years old, resident in Wad-Madani town, Sudan were participated in the study. They were divided into 3 groups according to body mass index (BMI) value: I (normal weight), II (overweight) and III (obese diabetic). Fasting serum resistin and ghrelin concentrations were measured using ELISA method. Insulin levels were determined by radioimmunoassay(RIA).ResultsThe mean±SD levels of resistin 5.80±4.91ng/mL,Ghrelin107.60±26.67pg/M and Insulin 11.92±8.54mLU/ml in obese diabetic were found to be greater than in normal or overweight women. In normal weight values were 3.07±2.15 ng/mL 83.30±13.38pg/mL, and 6.62±6.77mLU/ml for resistini, ghrelin and Insulin, respectively. Values for overweight women 3.64±2.63 pg/mL 90±17.35 pg/mL and 8.13±7.54 mLU/ml for resistin, ghrelin and insulin respectively.Conclusions and recommendationsIncreased BMI, waist circumference (WC) and hormones (ghrelin and resistin) were associated with insulin resistance. Further studies are needed to accept or refute these findings. 相似文献
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