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| 1 | Impaired contractility and remodeling of the upper gastrointestinal tract in diabetes mellitus type-1显示文摘AIM: To investigate that both the neuronal function of the contractile system and structural apparatus of the gastrointestinal tract are affected in patients with longstanding diabetes and auto mic neuropathy. METHODS: The evoked esophageal and duodenal contractile activity to standardized bag distension was assessed using a specialized ultrasound-based probe. Twelve type-1 diabetic patients with autonomic neuropathy and severe gastrointestinal symptoms and 12 healthy controls were studied. The geometry and biomechanical parameters (strain, tension/stress, and stiffness) were assessed. RESULTS: The diabetic patients had increased frequency of distension-induced contractions (6.0 ± 0.6 vs 3.3 ± 0.5, P < 0.001). This increased reactivity was correlated with the duration of the disease (P = 0.009). Impaired coordination of the contractile activity in diabetic patients was demonstrated as imbalance between the time required to evoke the first contraction at the distension site and proximal to it (1.5 ± 0.6 vs 0.5 ± 0.1, P = 0.03). The esophageal wall and especially the mucosa-submucosa layer had increased thickness in the patients (P < 0.001), and the longitudinal and radial compressive stretch was less in diabetics (P <0.001). The esophageal and duodenal wall stiffness and circumferential deformation induced by the distensions were not affected in the patients (all P > 0.14). CONCLUSION: The impaired contractile activity with an imbalance in the distension-induced contractions likely reflects neuronal abnormalities due to autonomic neuropathy. However, structural changes and remodeling of the gastrointestinal tract are also evident and may add to the neuronal changes. This may contribute to the pathophysiology of diabetic gut dysfunction and impact on future management of diabetic patients with gastrointestinal symptoms. | Jens BrΦndum FrΦkjΦr SΦren Due Andersen Niels EjskjΦr Peter Funch-Jensen AsbjΦrn Mohr Drewes Hans Gregersen | 2007 | World Journal of Gastroenterology2007,13,36: | 8 |
| 2 | Systematic mechanism-orientated approach to chronic pancreatitis pain显示文摘Pain in chronic pancreatitis(CP) shows similarities with other visceral pain syndromes(i.e.,inflammatory bowel disease and esophagitis),which should thus be managed in a similar fashion.Typical causes of CP pain include increased intrapancreatic pressure,pancreatic inflammation and pancreatic/extrapancreatic complications.Unfortunately,CP pain continues to be a major clinical challenge.It is recognized that ongoing pain may induce altered central pain processing,e.g.,central sensitization or pro-nociceptive pain modulation.When this is present conventional pain treatment targeting the nociceptive focus,e.g.,opioid analgesia or surgical/endoscopic intervention,often fails even if technically successful.If central nervous system pain processing is altered,specific treatment targeting these changes should be instituted(e.g.,gabapentinoids,ketamine or tricyclic antidepressants).Suitable tools are now available to make altered central processing visible,including quantitative sensory testing,electroencephalograpy and(functional) magnetic resonance imaging.These techniques are potentially clinically useful diagnostic tools to analyze central pain processing and thus define optimum management approaches for pain in CP and other visceral pain syndromes.The present review proposes a systematic mechanism-orientated approach to pain management in CP based on a holistic view of the mechanisms involved.Future research should address the circumstances under which central nervous system pain processing changes in CP,and how this is influenced by ongoing nociceptive input and therapies.Thus we hope to predict which patients are at risk for developing chronic pain or not responding to therapy,leading to improved treatment of chronic pain in CP and other visceral pain disorders. | Stefan AW Bouwense Marjan de Vries Luuk TW Schreuder Soren S Olesen Jens B Frokjær Asbjorn M Drewes Harry van Goor Oliver HG Wilder-Smith | 2015 | World Journal of Gastroenterology2015,21,1: | 6 |
| 3 | 糖尿病性上消化道感觉和运动功能异常显示文摘糖尿病患者胃肠感觉运动功能异常非常常见,其可涉及胃肠道各个部位。糖尿病性胃肠异常经常是亚临床的,庆幸的是罕有严重和危及生命的问题发生。人们尚未完全了解糖尿病性上消化道感觉运动功能异常的发病机制,但是其机制似乎是多源性的。研究表明,糖尿病性自主神经病变和急性血糖异常可损伤感觉运动功能。糖尿病发展过程中胃肠道结构和生物力学特性的重构也可能与感觉运动功能异常有关。本综述只讨论糖尿病性上消化道感觉运动功能异常,同时结合讨论胃肠道结构和生物力学特性的重构在糖尿病性上消化道感觉运动功能异常发展中的作用。 | 赵静波 Jens Brφndum Frφkjr Asbjφrn Mohr Drewes Niels Ejskjaer | 2008 | 医学综述2008,14,23: | 6 |
| 4 | Pain and chronic pancreatitis: A complex interplay of multiple mechanisms显示文摘Despite multiple theories on the pathogenesis of pain in chronic pancreatitis,no uniform and consistently successful treatment strategy exists and abdominal pain still remains the dominating symptom for most patients and a major challenge for clinicians.Traditional theories focussed on a mechanical cause of pain related to anatomical changes and evidence of increased ductal and interstitial pressures.These observations form the basis for surgical and endoscopic drainage procedures,but the outcome is variable and often unsatisfactory.This underscores the fact that other factors must contribute to pathogenesis of pain,and has shifted the focus towards a more complex neurobiological understanding of pain generation.Amongst other explanations for pain,experimental and human studies have provided evidence that pain perception at the peripheral level and central pain processing of the nociceptive information is altered in patients with chronic pancreatitis,and resembles that seen in neuropathic and chronic pain disorders.However,pain due to e.g.,complications to the disease and adverse effects to treatment must not be overlooked as an additional source of pain.This review outlines the current theories on pain generation in chronic pancreatitis which is crucial in order to understand the complexity and limitations of current therapeutic approaches.Furthermore,it may also serve as an inspiration for further research and development of methods that can evaluate the relative contribution and interplay of different pain mechanisms in the individual patients,before they are subjected to more or less empirical treatment. | Jakob Lykke Poulsen Sφren Schou Olesen Lasse Paludan Malver Jens Brφndum Frφkjr Asbjφrn Mohr Drewes | 2013 | World Journal of Gastroenterology2013,19,42: | 5 |
| 5 | Brain changes in diabetes mellitus patients withgastrointestinal symptoms显示文摘Diabetes mellitus is a common disease and its prevalence is increasing worldwide. In various studies up to 30%-70% of patients present dysfunction and complications related to the gut. To date several clinical studies have demonstrated that autonomic nervous system neuropathy and generalized neuropathy of the central nervous system(CNS) may play a major role. This systematic review provides an overview of the neurodegenerative changes that occur as a consequence of diabetes with a focus on the CNS changes and gastrointestinal(GI) dysfunction. Animal models where diabetes was induced experimentally support that the disease induces changes in CNS. Recent investigations with electroencephalography and functional brain imaging in patients with diabetes confirm these structural and functional brain changes. Encephalographic studies demonstrated that altered insular processing of sensory stimuli seems to be a key player in symptom generation. In fact one study indicated that the more GI symptoms the patients experienced, the deeper the insular electrical source was located. The electroencephalography was often used in combination with quantitative sensory testingmainly showing hyposensitivity to stimulation of GI organs. Imaging studies on patients with diabetes and GI symptoms mainly showed microstructural changes,especially in brain areas involved in visceral sensory processing. As the electrophysiological and imaging changes were associated with GI and autonomic symptoms they may represent a future therapeutic target for treating diabetics either pharmacologically or with neuromodulation. | Anne M Drewes Eirik Søfteland Georg Dimcevski Adam D Farmer Christina Brock Jens B Frøkjær Klaus Krogh Asbjørn M Drewes | 2016 | World Journal of Diabetes2016,7,2: | 4 |
| 6 | Antidepressant foods:An evidence-based nutrient profiling system for depression显示文摘AIM To investigate which foods are the most nutrient dense sources of nutrients demonstrated by the scientific literature to play a role in the prevention and promotion of recovery from depressive disorders. METHODS A systematic literature review was conducted to derive a list of Antidepressant Nutrients from the 34 nutrients known to be essential for humans using level of evidence criteria. Nutritional data was extracted for a subset of foods with a high content of at least 1 Antidepressant Nutrient using a USDA database. These foods were analyzed for Antidepressant Nutrient density resulting in an Antidepressant Food Score(AFS). Plant and animal foods were analyzed separately. RESULTS Twelve Antidepressant Nutrients relate to the prevention and treatment of depressive disorders: Folate, iron, longchain omega-3 fatty acids(EPA and DHA), magnesium, potassium, selenium, thiamine, vitamin A, vitamin B6, vitamin B12, vitamin C, and zinc. The highest scoring foods were bivalves such as oysters and mussels, various seafoods, and organ meats for animal foods. The highest scoring plant foods were leafy greens, lettuces, peppers, and cruciferous vegetables. CONCLUSION The AFS is based on a nutrient profiling system devised to identify foods with the highest nutrient density of nutrients with clinical evidence to support theirrole in depressive disorders. This list of foods and food categories with the highest density of the 12 Antidepressant Nutrients, the Antidepressant Foods, should be considered by researchers in the design of future intervention studies and clinicians as dietary options to support prevention and recovery from depression disorders. | Laura R La Chance Drew Ramsey | 2018 | World Journal of Psychiatry2018,8,3: | 2 |
| 7 | Titanium-based composites produced by powder metallurgy 显示文摘 | Wanjara P Yue S Drew R A L | 1997 | Key Eng Mater1997,,: | 2 |
| 8 | Methylation of TIMP3 in esophageal squamous cell carcinoma显示文摘AIM: To measure the frequency of DNA methylation of the tissue inhibitor of metalloproteinase 3 (TIMP3) promoter and relate this to any change of gene expression in esophageal squamous cell carcinoma in patients from a region of high incidence in China.METHODS: Cancer cell lines were treated with or without the demethylating reagent 5-aza-2’-deoxycytidine. Methylation of the TIMP3 promoter was assessed in three regions by melt curve analysis and its expression was assessed by real-time RT-PCR. Tumors and proximal resection margins were obtained from 64 patients with esophageal squamous cell carcinoma from a region of high incidence in China. Methylation was assessed by melt curve analysis and expression by immunohistochemistry.RESULTS: Methylation in one of the three promoter regions assessed correlated with gene silencing in esophageal cell lines. A degree of methylation of TIMP3 was found in only four esophageal squamous cell carcinomas, and partial loss of TIMP3 protein expression in just one.CONCLUSION: Methylation and loss of expression of TIMP3 occurs infrequently in esophageal squamous cell carcinoma in a region of high incidence in China. | Eric Smith Neville J De Young Zi-Qiang Tian Maria Caruso Andrew R Ruszkiewicz Jun-Feng Liu Glyn G Jamieson Paul A Drew | 2008 | World Journal of Gastroenterology2008,14,2: | 2 |
| 9 | Imaging of the gastrointestinal tract-novel technologies显示文摘Imaging of the gastrointestinal tract is very useful for research and clinical studies of patients with symptoms arising from the gastrointestinal tract and in visualising anatomy and pathology. Traditional radiological techniques played a leading role in such studies for a long time. However, advances in non-invasive modalities including ultrasound (US), computed tomography (CT), positron emission tomography (PET), magnetic resonance imaging (MRI), etc, have in the last decades revolutionised the way in which the gastrointestinal tract is studied. The resolution of imaging data is constantly being improved and 3D acquisition, tools for fi ltering, enhancement, segmentation and tissue classif ication are continually being developed. Additional co-registration techniques allow multimodal data acquisition with improved classif ication of tissue pathology. Furthermore, new functional imaging techniques have become available. Altogether, the future of gastrointestinal imaging looks very promising which will be of great benef it in clinical and research studies of gastrointestinal diseases. The purpose of this review is to highlight the capabilities of the newest techniques to explore the detailed morphology, biomechanical properties, function and pathology of the gastrointestinal tract. | Jens Brφndum Frφkjr Asbjφrn Mohr Drewes Hans Gregersen | 2009 | World Journal of Gastroenterology2009,15,2: | 2 |
| 10 | The interaction of reaction-bonded silicon carbide and Inconel 600 with a nickel-based brazing alloy显示文摘 | Mcdermid J R Pugh M D Drew R A L | 1989 | Metallurgical Transactions A1989,20,: | 1 |
| 11 | Geology and structural evolution of the Muruntau gold deposit, Kyzylkum Desert, Uzbekistan 显示文摘 | Berger B R Kurbanov N K | 1996 | Ore Geology Reviews1996,11,: | 1 |
| 12 | Spectrally arbitrary patterns显示文摘 | Drew J H Johnson C R Olesky D D | 2000 | Linear Algebra Appl2000,308,13: | 1 |
| 13 | Prevalence of resistance in patients receiving ganciclovir for serious cytomegalovirus infection显示文摘 | DREW W L MINER R C BUSCH D F | 1991 | J Infect Dis1991,163,: | 1 |
| 14 | Assessment of a rapid method,using soil cores, for estimating the amount and distribution of crop roots in the field 显示文摘 | Drew M C Saker L R | 1980 | Plant and Soil1980,55,: | 1 |
| 15 | Longitudinal analysis of the impact of service changes on customer attitudes显示文摘 | Bolton R N Drew J H A | | 0,,: | 1 |
| 16 | Multiple paternity in a natural population of a wild tobacco fly, Bactrocera cacuminata (Diptera: Tephritidae), assessed by microsatellite DNA markers 显示文摘 | Song S D Drew R A Hughes J M | 2007 | Molecular Ecology2007,16,11: | 1 |
| 17 | Facilitation of oviposition behaviour of Bactrocera tryoini flies显示文摘 | PROKOPY R J REMING M C DREW R A I | 1999 | Journal of Insect Behavior1999,12,: | 1 |
| 18 | A lock-docking oligo(dT) primer for 5′and 3′RACE PCR显示文摘 | Borson N D Salo W L Drewes R L | 1992 | PCR Methods Appl1992,2,: | 1 |
| 19 | Tatanium based composites produced by powder metallurgy显示文摘 | Wanjara P Yue S Drew R A L | 1997 | Key Eng Mater1997,,: | 1 |
| 20 | Traffic Dynamics:Method for Estimating Freeway Travel Times in Real Time From Flow Measurements显示文摘 | Nam D H D R Drew | 1989 | Journal of Transportation Engineering1989,,122: | 1 |