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| 1 | Review of a challenging clinical issue:Intrahepatic cholestasis of pregnancy显示文摘Intrahepatic cholestasis of pregnancy(ICP) is a reversible pregnancy-specific cholestatic condition characterized by pruritus, elevated liver enzymes, and increased serum bile acids. It commences usually in the late second or third trimester, and quickly resolves after delivery. The incidence is higher in South American and Scandinavian countries(9.2%-15.6% and 1.5%, respectively) than in Europe(0.1%-0.2%). The etiology is multifactorial where genetic, endocrine, and environmental factors interact. Maternal outcome is usually benign, whereas fetal complications such as preterm labor, meconium staining, fetal distress, and sudden intrauterine fetal demise not infrequently lead to considerable perinatal morbidity and mortality. Ursodeoxycholic acid is shown to be the most efficient therapeutic agent with proven safety and efficacy. Management of ICP consists of careful monitoring of maternal hepatic function tests and serum bile acid levels in addition to the assessment of fetal well-being and timely delivery after completion of fetal pulmonary maturity. This review focuses on the current concepts about ICP based on recent literature data and presents an update regarding the diagnosis and management of this challenging issue. | Sebiha Ozkan Yasin Ceylan Orhan Veli Ozkan Sule Yildirim | 2015 | World Journal of Gastroenterology2015，21，23： | 53 |
| 2 | Aetiology of idiopathic granulomatous mastitis显示文摘Idiopathic granulomatous mastitis is a rare chronic inflammatory lesion of the breast that can clinically and radiographically mimic breast carcinoma. The most common clinical presentation is an unilateral, discrete breast mass, nipple retraction and even a sinus formation often associated with an inflammation of the overlying skin. The etiology of idiopathic granulomatous mastitis is still obscure. Its treatment remains controversial. The cause may be the autoimmune process, infection, a chemical reaction associated with oral contraceptive pills, or even lactation. Various factors, including hormonal imbalance, autoimmunity, unknown microbiological agents, smoking and α 1-antitrypsin deficiency have been suggested to play a role in disease aetiology. In this review, causing factors in the aetiology of idiopathic granulomatous mastitis are reviewed in detail. | Fatih Altintoprak Taner Kivilcim Orhan Veli Ozkan | 2014 | World Journal of Clinical Cases2014，2，12： | 52 |
| 3 | Endoscopic retrograde cholangiopancreatography during pregnancy without radiation显示文摘AIM: To present our experience with pregnant patients who underwent endoscopic retrograde cholangiopancreatography (ERCP) without using radiation, and to evaluate the acceptability of this alternative therapeutic pathway for ERCP during pregnancy. METHODS: Between 2000 and 2008, six pregnant women underwent seven ERCP procedures. ERCP was performed under mild sedoanalgesia induced with pethidine HCl and midazolam. The bile duct was cannulated with a guidewire through the papilla. A catheter was slid over the guidewire and bile aspiration and/or visualization of the bile oozing around the guidewire was used to confirm correct cannulation. Following sphincterotomy, the bile duct was cleared by balloon sweeping. When indicated, stents were placed. Confirmation of successful biliary cannulation and stone extraction was made by laboratory, radiological and clinical improvement. Neither fluoroscopy nor spot radiography was used during the procedure. RESULTS: The mean age of the patients was 28 years (range, 21-33 years). The mean gestational age for the fetus was 23 wk (range, 14-34 wk). Five patients underwent ERCP because of choledocholithiasis and/orcholedocholithiasis-induced acute cholangitis. In one case, a stone was extracted after precut papillotomy with a needle-knife, since the stone was impacted. One patient had ERCP because of persistent biliary fistula after hepatic hydatid disease surgery. Following sphincterotomy, scoleces were removed from the common bile duct. Two weeks later, because of the absence of fistula closure, repeat ERCP was performed and a stent was placed. The fistula was closed after stent placement. Neither post-ERCP complications nor premature birth or abortion was seen. CONCLUSION: Non-radiation ERCP in experienced hands can be performed during pregnancy. Stent placement should be considered in cases for which complete common bile duct clearance is dubious because of a lack of visualization of the biliary tree. | Adem Akcakaya Orhan Veli Ozkan Ismail Okan Orhan Kocaman Mustafa Sahin | 2009 | World Journal of Gastroenterology2009，15，29： | 17 |
| 4 | Design of task-specific optical systems using broadband diffractive neural networks显示文摘Deep learning has been transformative in many fields,motivating the emergence of various optical computing architectures.Diffractive optical network is a recently introduced optical computing framework that merges wave optics with deep-learning methods to design optical neural networks.Diffraction-based all-optical object recognition systems,designed through this framework and fabricated by 3D printing,have been reported to recognize handwritten digits and fashion products,demonstrating all-optical inference and generalization to sub-classes of data.These previous diffractive approaches employed monochromatic coherent light as the illumination source.Here,we report a broadband diffractive optical neural network design that simultaneously processes a continuum of wavelengths generated by a temporally incoherent broadband source to all-optically perform a specific task learned using deep learning.We experimentally validated the success of this broadband diffractive neural network architecture by designing,fabricating and testing seven different multi-layer,diffractive optical systems that transform the optical wavefront generated by a broadband THz pulse to realize(1)a series of tuneable,single-passband and dual-passband spectral filters and(2)spatially controlled wavelength de-multiplexing.Merging the native or engineered dispersion of various material systems with a deep-learning-based design strategy,broadband diffractive neural networks help us engineer the light–matter interaction in 3D,diverging from intuitive and analytical design methods to create taskspecific optical components that can all-optically perform deterministic tasks or statistical inference for optical machine learning. | Yi Luo Deniz Mengu Nezih T.Yardimci Yair Rivenson Muhammed Veli Mona Jarrahi Aydogan Ozcan | 2019 | Light(Science & Applications)2019，8，1： | 9 |
| 5 | Intestinal obstruction due to phytobezoars: An update显示文摘The term bezoar refers to an intraluminal mass in the gastrointestinal system caused by the accumulation of indigestible ingested materials, such as vegetables, fruits, and hair. Bezoars are responsible for 0.4%-4% of cases of mechanical intestinal obstruction. The clinical findings of bezoar-induced ileus do not differ from those of mechanical intestinal obstruction due to other causes. The appearance and localization of bezoars can be established with various imaging methods. Treatment of choice depends on the localization of the bezoar which makes the clinical findings. | Enis Dikicier Fatih Altintoprak Orhan Veli Ozkan Orhan Yagmurkaya Mustafa Yener Uzunoglu | 2015 | World Journal of Clinical Cases2015，3，8： | 7 |
| 6 | Enhancement of pacemaker induced stochastic resonance by an autapse in a scale-free neuronal network显示文摘An autapse is an unusual synapse that occurs between the axon and the soma of the same neuron. Mathematically, it can be described as a self-delayed feedback loop that is defined by a specific time-delay and the so-called autaptic coupling strength. Recently, the role and function of autapses within the nervous system has been studied extensively. Here, we extend the scope of theoretical research by investigating the effects of an autapse on the transmission of a weak localized pacemaker activity in a scale-free neuronal network. Our results reveal that by mediating the spiking activity of the pacemaker neuron, an autapse increases the propagation of its rhythm across the whole network, if only the autaptic time delay and the autaptic coupling strength are properly adjusted. We show that the autapse-induced enhancement of the transmission of pacemaker activity occurs only when the autaptic time delay is close to an integer multiple of the intrinsic oscillation time of the neurons that form the network. In particular, we demonstrate the emergence of multiple resonances involving the weak signal, the intrinsic oscillations, and the time scale that is dictated by the autapse. Interestingly, we also show that the enhancement of the pacemaker rhythm across the network is the strongest if the degree of the pacemaker neuron is lowest. This is because the dissipation of the localized rhythm is contained to the few directly linked neurons, and only afterwards, through the secondary neurons, it propagates further. If the pacemaker neuron has a high degree, then its rhythm is simply too weak to excite all the neighboring neurons, and propagation therefore fails. | YILMAZ Ergin BAYSAL Veli PERC Matjaz OZER Mahmut | 2016 | Science China(Technological Sciences)2016，59，3： | 6 |
| 7 | Mechanical lithotripsy and/or stenting in management of difficult common bile duct stones显示文摘BACKGROUND:Mechanical lithotripsy and/or stent insertion is the alternative therapeutic approach in difficult endoscopic retrograde cholangiopancreatography (ERCP)case.This study was designed to investigate the appropriate treatment for extraction of bile duct stones in difficult cases of ERCP. METHODS:Between 2000 and 2008,744 ERCP procedures were performed in 592 patients with choledocholithiasis in our endoscopy unit.The demographic features,and clinical and laboratory findings were collected from a prospectively held database.Bile duct calculi were extracted by basket and/or balloon catheter following ERCP and sphincterotomy.Patients with retained stones were regarded as difficult cases.These patients were treated with mechanical lithotripsy and those with incomplete clearance of stones underwent stent placement. RESULTS:Two hundred and forty-five patients(41%) were male and 347(59%)were female with a mean age of 58 years(range 19-95 years).Stones were impacted in 27 patients(5%).Stone extraction was performed by basket and/or balloon catheter in 610 ERCP procedures,and lithotripsy was performed in 70 ERCP procedures.Forty- four patients underwent stent insertion,and 20 underwent stent replacement.Morbidity occurred in 39 patients (5%),with no mortality associated with the procedure.Hemorrhage occurred in 9 patients and basket impaction in 4.Mild pancreatitis and cholangitis developed in 12 and 11 patients,respectively. CONCLUSION:Difficult cases of bile duct stones can be treated successfully with lithotripsy,and a stent should be applied when the common bile duct cannot be cleared completely. | Adem Akcakaya Orhan Veli Ozkan Gurhan Bas Atilla Karakelleoglu Orhan Kocaman Ismail Okan Mustafa Sahin | 2009 | Hepatobiliary & Pancreatic Diseases International2009，8，5： | 5 |
| 8 | Similarities and differences between Behet's disease and Crohn's disease显示文摘Behet's disease(BD) is a chronic inflammatory condition with multisystem involvement. Approximately 10%-15% of patients present with gastrointestinal involvement. Involved sites and the endoscopic view usually resemble Crohn's disease(CD). In addition to intestinal involvement, oral mucosa, the eyes, skin, and joints are commonly affected. No pathognomonic laboratory test is available for the diagnosis of either disease. Management approaches are also similar in various aspects. Differentiating BD from CD is highly challenging. In this article, the similarities and differences between BD and CD in terms of epidemiology, etiopathogenesis, clinical and imaging findings, and histopathological and therapeutic approaches are reviewed. | Veli Yazsz | 2014 | World Journal of Gastrointestinal Pathophysiology2014，5，3： | 4 |
| 9 | Fecal Transplantation, Through Colonoscopy, Is Effective Therapy for Recurrent Clostridium difficile Infection显示文摘 | Eero Mattila Raija Uusitalo–Sepp?l? Maarit Wuorela Laura Lehtola Heimo Nurmi Matti Ristikankare Veikko Moilanen Kimmo Salminen Maaria Sepp?l? Petri S. Mattila Veli–Jukka Anttila Perttu Arkkila | 2012 | Gastroenterology2012，，3： | 3 |
| 10 | 用传统和超声提取的松果菊(紫锥菊属)的抗氧化和抗菌活性(英文)显示文摘Antioxidant and antimicrobial activities of Echinacea purpurea L. (Asteraceae) extracts obtained by classical and ultrasound solvent extraction were compared. The dry aerial part of plant was extracted by 70% etha-nol at a solid-to-liquid ratio of 1︰10 (m/v) and 25°C. The extract obtained by classical solvent extraction contained 29% larger amounts of phenolic compounds and 20% higher content of flavonoids. 2,2-diphenyl-1-picril hydrazyl radical (DPPH) scavenging reached 93.6% and the values of EC50 were (34.16±0.65) μg·ml-1 and (65.48±1.12) μg·ml-1 for the extracts obtained by the classical and ultrasound extractions, respectively. The extracts, independent of the extraction technique applied, showed a considerable growth inhibition on Candida albicans and Saccharo-myces cerevisiae, while no growth inhibition zones were observed for Aspergillus niger. The diameters of inhibition zone observed for all the microorganisms were larger for extracts obtained by classical extraction than those by ul-trasound extraction. | Ivana Stanisavljevi Sаa Stojievi Dragan Velikovi Vlada Veljkovi Miodrag Lazi | 2009 | Chinese Journal of Chemical Engineering2009，17，3： | 2 |
| 11 | Embedding and Maximal Regular Differential Operators in Sobolev-Lions Spaces显示文摘<正> This study focuses on vector-valued anisotropic Sobolev-Lions spaces associated withBanach spaces E_0,E. Several conditions are found that ensure the continuity and compactness ofembedding operators that are optimal regular in these spaces in terms of interpolations of spaces E_0and E. In particular, the most regular class of interpolation spaces E_α between E_0, E depending onα and the order of space are found and the boundedness of differential operators D~α from this spaceto E_α-valued L_(ρ,γ)spaces is proved. These results are applied to partial differential-operator equationswith parameters to obtain conditions that guarantee the maximal L_(ρ,γ)regularity and R-positivityuniformly with respect to these parameters. | Veli B.SHAKHMUROV | 2006 | Acta Mathematica Sinica,English Series2006，22，5： | 2 |
| 12 | Role of high definition colonoscopy in colorectal adenomatous polyp detection显示文摘AIM:To investigate the rates of polyp detection in a mixed risk population using standard definition (SDC) vs high definition colonoscopes (HDC).METHODS:This was a retrospective cohort comparative study of 3 colonoscopists who each consecutively performed 150 SDC (307,200 pixel) and 150 HDC (792,576 pixels) in a community teaching hospital.RESULTS:A total of 900 colonoscopies were evaluated (mean age 56,46.8% men),450 with each resolution.Polyps of any type were detected in 46.0% of patients using SDC and 43.3% with HDC (P=0.42).There was no significant difference between the overall number of polyps,HDC (397) and SDC (410),detected among all patients examined,(P=0.73).One or more adenomatous polyps were detected in 24.2% of patients with HDC and 24.9% of patients with SDC colonoscopy (P=0.82).There was no significant difference between HDC (M=0.41) and SDC (M=0.42) regarding adenomatous polyp (P=0.88) or advanced adenoma (P=0.56) detection rate among all patients examined.CONCLUSION:HDC did not improve yield of adenomatous polyp,advanced adenoma or overall polyp detection in a population of individuals with mixed risk for colorectal cancer. | Tolga Erim John M Rivas Evelio Velis Fernando Castro | 2011 | World Journal of Gastroenterology2011，17，35： | 2 |
| 13 | Surgical management of chronic total occlusion of abdominal aorta显示文摘 | Mavioglu I Veli Dogan O Ozeren M | 2003 | J Cardiovasc Surg (Torino)2003，44，1： | 1 |
| 14 | Recognition of peptide - MHC class I complexes by activating killer immunoglobulin-like receptors 显示文摘 | Stewarta C A Laugier-Anfossi F Vely F | 2005 | PNAS2005，102，13： | 1 |
| 15 | Effect of the mucolytic erdosteine on the success rate of PPI-based first-line triple therapy for Helicobacter pylori eradication:a prospective,double-blind,randomized,placebo-controlled study显示文摘 | Abut E Yasar B Güveli H | | 0，，6： | 1 |
| 16 | An investigation of halogens in Izmit hazardous and clinical waste incinerator显示文摘 | Cetin S Veli S Ayberk S | 2004 | WasteManage2004，24，： | 1 |
| 17 | Meat, fat, and their subtypesas risk factors for colorectal cancer in a prospective cohort of women 显示文摘 | Flood A Velie EM Sinha R | 2003 | Am J Epidemiol2003，158，1： | 1 |
| 18 | 不同萃取技术获得的Artemisia sp的甲醇提取物其抗氧化和抗菌活性的比较(英文)显示文摘The polyphenol content,antioxidant and antimicrobial activities of the extracts obtained by classical, ultrasonic and Soxhlet extractions from dry aerial parts of two Artemisia species(Artemisia vulgaris and Artemisia campestris)were compared.Ultrasound positively affected the yield of extractive substance and the kinetics of extraction,but the extract obtained by the classical extraction showed the highest antioxidant activities and contained higher total contents of phenolic compounds and flavonoids than the extracts obtained by two other extraction techniques.Both flavonoid aglycones(apigenin,quercetin,quercetin 3,3′-dimethyl ether)and flavonoid glycosides(rutin,hyperoside and kaempferol 3-rhamnoside)were identified by thin layer chromatograph(TLC)analysis in the extracts from both species.A.campestris extracts were richer in quercetin than A.vulgaris and its antimicrobial activity was also better than A.vulgaris.Extracts obtained from both species were found to be more effective on the tested yeasts than bacteria.The kinetics of the total extractive substances,such as phenolic,flavonoids and quercetin extraction,was successfully described by the model of unsteady-state diffusion. | Ivana Karabegovi Milena Nikolova Dragan Velikovi Sаa Stojievi Vlada Veljkovi Miodrag Lazi | 2011 | Chinese Journal of Chemical Engineering2011，19，3： | 1 |
| 19 | Transduction of cytotoxic signals in natural killer cells: a general model of fine tuning between activatory and inhibitory pathways in lymphocytes 显示文摘 | Cambiaggi A Vely F | 1997 | Immunol Rev1997，1559，2： | 1 |
| 20 | comparison of combined versus subdural or intracerebral electrodes alone in presurgical focus localization显示文摘 | Brekelmans G J van Emde-Boas W Velis DN | 1998 | Epilepsia1998，39，12： | 1 |
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