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1Medically unexplained dyspnea:psychophysiological characteristics and role of breathing therapy显示文摘Background Medically unexplained dyspnea occurs commonly in medical settings and remains poorly understood. This study was conducted to investigate the psychophysiological characteristics of medically unexplained dyspnea and the efficacy of breathing retraining for these patients. Methods A group of patients with medically unexplained dyspnea were compared to patients with a variety of organic lung diseases and healthy subjects. In another group of patients,the influence of breathing therapy on complaints,anxiety, and breath-holding was evaluated for an average of 1.5 years. Results Patients with medically unexplained dyspnea reported more intense dyspnea than patients with a variety of organic lung diseases. Additionally,they were anxious and presented a broad range of symptoms in daily life and under challenge,for instance voluntary hyperventilation. More than one third of them qualified for panic disorder. They had shorter breath-holding time at rest,less increase in breath-holding time and higher chances of showing a “paradoxical” decrease of breath-holding time after hyperventilation. A combination of PaO2,forced expiratory volume in one second (FEV1),and anxiety measures distinguished them from organic dyspnea. Breathing retraining profoundly improved their symptoms and decreased the level of state and trait anxiety. Moreover,they better tolerated the voluntary hyperventilation and the symptoms induced were also markedly decreased after therapy. Breath-holding time was prolonged and PetCO2 in a representative group of patients increased. Conclusions Patients with medically unexplained dyspnea appear to have the feature of a “psychosomatic” patient: an anxious patient with a wide variety of symptoms of different organ systems that do not have an organic basis. They can be distinguished from organic dyspnea using a small set of physiological and psychological measures. Breathing retraining turns out to be an effective therapy for those “difficult to treat patients”.韩江娜 朱元珏 李舜伟 雒冬梅 胡征 Van Diest I De Peuter S Van de Woestijne KP Van den Bergh O 2004Chinese Medical Journal2004,,1:10
2Dietary and metabolomic determinants of relapse in ulcerative colitis patients: A pilot prospective cohort study显示文摘AIM To identify demographic, clinical, metabolomic, and lifestyle related predictors of relapse in adult ulcerative colitis(UC) patients.METHODS In this prospective pilot study, UC patients in clinical remission were recruited and followed-up at 12 mo to assess a clinical relapse, or not. At baseline information on demographic and clinical parameters was collected. Serum and urine samples were collected for analysis of metabolomic assays using a combined direct infusion/liquid chromatography tandem mass spectrometry and nuclear magnetic resolution spectroscopy. Stool samples were also collected to measure fecal calprotectin(FCP). Dietary assessment was performed using a validated self-administered food frequency questionnaire. RESULTS Twenty patients were included(mean age: 42.7 ± 14.8 years, females: 55%). Seven patients(35%) experienced a clinical relapse during the follow-up period. While 6 patients(66.7%) with normal body weight developed a clinical relapse, 1 UC patient(9.1%) who was overweight/obese relapsed during the follow-up(P = 0.02). At baseline, poultry intake was significantly higher in patients who were still in remission during follow-up(0.9 oz vs 0.2 oz, P = 0.002). Five patients(71.4%) with FCP > 150 μg/g and 2 patients(15.4%) with normal FCP(≤ 150 μg/g) at baseline relapsed during the follow-up(P = 0.02). Interestingly, baseline urinary and serum metabolomic profiling of UC patients with or without clinical relapse within 12 mo showed a significant difference. The most important metabolites that were responsible for this discrimination were trans-aconitate, cystine and acetamide in urine, and 3-hydroxybutyrate, acetoacetate and acetone in serum. CONCLUSION A combination of baseline dietary intake, fecal calprotectin, and metabolomic factors are associated with risk of UC clinical relapse within 12 mo.Ammar Hassanzadeh Keshtel iFloris F van den Brand Karen L Madsen Rupasri Mandal Rosica ValchevaKaren I Kroeker Beomsoo Han Rhonda C Bell Janis Cole Thomas Hoevers David S Wishart Richard N Fedorak Levinus A Dieleman 2017World Journal of Gastroenterology2017,23,21:9
3Meeting report:a hard look at the state of enamel research显示文摘The Encouraging Novel Amelogenesis Models and Ex vivo cell Lines(ENAMEL) Development workshop was held on 23 June 2017 at the Bethesda headquarters of the National Institute of Dental and Craniofacial Research(NIDCR). Discussion topics included model organisms, stem cells/cell lines, and tissues/3 D cell culture/organoids. Scientists from a number of disciplines,representing institutions from across the United States, gathered to discuss advances in our understanding of enamel, as well as future directions for the field.ophir d klein olivier duverger wendy shaw rodrigo s lacruz derk joester janet moradian-oldak megan k pugach j timothy wright sarah e millar ashok b kulkarni john d bartlett thomas gh diekwisch pamela den besten james p simmer 2017International Journal of Oral Science2017,9,4:3
4Regulatory macrophages induced by infliximab are involved in healing in vivo and in vitro显示文摘Anne Christine W.Vos Manon E.Wildenberg IngridArijs MarjolijnDuijvestein Auke P.Verhaar Gertde Hertogh SéverineVermeire PaulRutgeerts Gijs R.van den Brink Daniel W.Hommes 2012Inflamm Bowel Dis2012,,3:2
5MiR-125b, miR-100 and miR-99a co-regulate vincristine resistance in childhood acute lymphoblastic leukemia显示文摘F. Akbari Moqadam E.A.M. Lange-Turenhout Ingrid M. Ari?s R. Pieters M.L. den Boer 2013Leukemia Research2013,,:2
6Caspase activation and disruption of mitochondrial membrane potential during UV radiation-induced apoptosis of human kemtinocytes requires activation of protein kinase C显示文摘Denning MF Wang Y Tibudan S 2002Cell Death Differ2002,9,1:1
7Focused crawling: a new approach to topic-specific Web resource discovery显示文摘CHARKRABARTI S BERG M van den DOM B 1999Computer Networks1999,31,1116:1
8Early prediction of endocrine therapy effect in advanced breast cancer patients using ^99mTc-depreotide scintigraphy 显示文摘VAN DEN BOSSCHE B VAN BELLE S DE WINTER F 2006J Nucl Med2006,47,11:1
9Development of a combined new mechanical and enzymatic method for the isolation of intact preantral follicles from fetal calf and adult bovine ovaries 显示文摘FIGUEIREDO J R HULSHOF S C J VAN DEN HURK R 1993Theriogenology1993,40,:1
10Experimental evidence for water weakening of quartzite by microcracldng plus solution-precipitation creep显示文摘Den Brok S W J Spiers C J 1991Journal of Geologlcal Society1991,148,3:1
11GC-MS analysis of breath odor compounds in liver patients显示文摘Van den Velde S Nevens F Van Hee P 2008J Chromatogr B Analyt Technol Biomed Life Sci2008,875,2:1
12Re cent sedimentation and sediment accumulation rates of the Ba Lat prodelta(Red River, Vietnam) 显示文摘van den Bergh G D Boer W Schaapveld M A S 2007Journal of Asian Earth Sciences2007,,29:1
13Gibberellins are in- volved in nodulation of Sesbania rostrata 显示文摘Lievens S Goormachtig S Den Herder J 2005Plant Physiology2005,139,3:1
14Standard mutation no- menclature in molecular diagnostics: practical and educational chal- lenges显示文摘Ogino S Gulley ML den Dunnen JT 2007J Mol Diagn2007,9,1:1
15The osteogenic effect of electrosprayed nanoscale collagen/ calcium phosphate coatings on titanium显示文摘de Jonge L T Leeuwenburgh S C G van den Beucken J J J P 2010Bioma?terials2010,31,9:1
16Comparing conventional gauze therapy to vacuum-assisted closure wound therapy:aprospective randomized trial显示文摘Mous CM van den Bemd GJ Heule F 2007J Plast Reconstr Aesthet Surg2007,60,6:1
17Carotid artery plaque burden, stiffness, and mortality risk in elderly men: a prospective, population-based cohort study显示文摘Stork S van den Beld AW von Schacky C 2004Circulation2004,110,3:1
18Epidemiolo- gy of work related neck and upper limb problems: psychoso- cial and personal risk factors (part I) and effective interven- tions from a bio behavioural perspective (part I1)显示文摘Bongers PM Ijmker S Van den Heuvel S 2006J Occup Rehabil2006,16,:1
19The Neuropro- tective Properties of the Amyloid Precursor Protein Following Traumatic Brain Injury显示文摘Plummer S Van den Heuvel C Thornton E 2016Aging Dis2016,7,2:1
20Optimization and validation of a micellar electrokinetic chromatographic method for the analysis of florfenicol显示文摘HILLAERT S van den BOSSCHE W 2004Journal of Pharmaceutical and Biomedical Analysis2004,36,3:1
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