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2041篇 您的检索式:作者名="Victoria"
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1Intrahepatic cholestasis of pregnancy显示文摘Intrahepatic cholestasis of pregnancy (ICP) is a pregnancy-specific liver disorder characterized by maternal pruritus in the third trimester, raised serum bile acids and increased rates of adverse fetal outcomes. The etiology of ICP is complex and not fully understood, but it is likely to result from the cholestatic effects of reproductive hormones and their metabolites in genetically susceptible women. Equally unclear are the mechanisms by which the fetal complications occur. This article reviews the epidemiology, clinical features, diagnosis, etiology and management of ICP.Victoria Geenes Catherine Williamson 2009World Journal of Gastroenterology2009,15,17:55
2Diagnostic endoscopic ultrasonography:Assessment of safety and prevention of complications显示文摘Endoscopic ultrasonography (EUS) has gained wide acceptance as an important, minimally invasive diagnostic tool in gastroenterology, pulmonology, visceral surgery and oncology. This review focuses on data regarding risks and complications of non-interventional diagnostic EUS and EUS-guided fine-needle biopsy (EUS-FNB). Measures to improve the safety of EUS und EUS-FNB will be discussed. Due to the specific mechanical properties of echoendoscopes in EUS, there is a low but noteworthy risk of perforation. To minimize this risk, endoscopists should be familiar with the specific features of their equipment and their patients' specific anatomical situations (e.g., tumor stenosis, diverticula). Most diagnostic EUS complications occur during EUS-FNB. Pain, acute pancreatitis, infection and bleeding are the primary adverse effects, occurring in 1% to 2% ofpatients. Only a few cases of needle tract seeding and peritoneal dissemination have been reported. The mortality associated with EUS and EUS-FNB is 0.02%. The risks associated with EUS-FNB are affected by endoscopist experience and target lesion. EUS-FNB of cystic lesions is associated with an increased risk of infection and hemorrhage. Peri-interventional antibiotics are recommended to prevent cyst infection. Adequate education and training, as well consideration of contraindications, are essential to minimize the risks of EUS and EUS-FNB. Restricting EUS-FNB only to patients in whom the cytopathological results may be expected to change the course of management is the best way of reducing the number of complications.Christian Jenssen Maria Victoria Alvarez-Sánchez Bertrand Napoléon Siegbert Faiss 2012World Journal of Gastroenterology2012,18,34:33
3Neoadjuvant treatment of esophageal cancer显示文摘The management of esophageal cancer has been evolving over the past 30 years. In the United States, multimodality treatment combining chemotherapy and radiotherapy (RT) prior to surgical resection has come to be accepted by many as the standard of care, although debate about its overall effect on survival still exists, and rightfully so. Despite recent improvements in detection and treatment, the overall survival of patients with esophageal cancer remains lower than most solid tumors, which highlights why further advances are so desperately needed. The aim of this article is to provide a complete review of the history of esophageal cancer treatment with the addition of chemotherapy, RT, and more recently, targeted agents to the surgical management of resectable disease.Nicholas P Campbell Victoria M Villaflor 2010World Journal of Gastroenterology2010,16,30:16
4Endoscopic ultrasound-guided fine-needle aspiration cytology diagnosis of solid pseudopapillary tumor of the pancreas: A case report and literature review显示文摘We describe the clinical, imaging and cytopathological features of solid pseudopapillary tumor of the pancreas (SPTP) diagnosed by endoscopic ultrasound- guided (EUS-guided) fine-needle aspiration (FNA). A 17-year-old woman was admitted to our hospital with complaints of an unexplained episodic abdominal pain for 2 mo and a short history of hypertension in the endocrinology clinic. Clinical laboratory examinations revealed polycystic ovary syndrome, splenomegaly and low serum amylase and carcinoembryonic antigen (CEA) levels. Computed tomography (CT) analysis revealed a mass of the pancreatic tail with solid and cystic consistency. EUS confirmed the mass, both in body and tail of the pancreas, with distinct borders, which caused dilation of the peripheral part of the pancreatic duct (major diameter 3.7 mm). The patient underwent EUS-FNA. EUS-FNA cytology specimens consisted of single cells and aggregates of uniform malignant cells, forming microadenoid structures, branching, papillary clusters with delicate fibrovascular cores and nuclear overlapping. Naked capillaries were also seen. The nuclei of malignant cells were round or oval, eccentric with fine granular chromatin, small nucleoli and nuclear grooves in some of them. The malignant cells were periodic acid Schiff (PAS)-Alcian blue (+) and immunocytochemically they were vimentin (+), CA 19.9 (+), synaptophysin (+), chromogranin (-), neuro-specific enolase (-), a1- antitrypsin and a1-antichymotrypsin focal positive. Cytologic findings were strongly suggestive of SPTP. Biopsy confirmed the above cytologic diagnosis. EUS- guided FNA diagnosis of SPTP is accurate. EUS findings,cytomorphologic features and immunostains of cell block help distinguish SPTP from pancreatic endocrine tumors, acinar cell carcinoma and papillary mucinous carcinoma.Charitini Salla Paschalis Chatzipantelis Panagiotis Konstantinou Ioannis Karoumpalis Akrivi Pantazopoulou Victoria Dappola 2007World Journal of Gastroenterology2007,13,38:15
5Cardiac autonomic neuropathy: Risk factors, diagnosis and treatment显示文摘Cardiac autonomic neuropathy(CAN)is a serious complication of diabetes mellitus(DM)that is strongly associated with approximately five-fold increased risk of cardiovascular mortality.CAN manifests in a spectrum of things,ranging from resting tachycardia and fixed heart rate(HR)to development of'silent'myocardial infarction.Clinical correlates or risk markers for CAN are age,DM duration,glycemic control,hypertension,and dyslipidemia(DLP),development of other microvascular complications.Established risk factors for CAN are poor glycemic control in type 1 DM and a combination of hypertension,DLP,obesity,and unsatisfactory glycemic control in type 2DM.Symptomatic manifestations of CAN include sinus tachycardia,exercise intolerance,orthostatic hypotension(OH),abnormal blood pressure(BP)regulation,dizziness,presyncope and syncope,intraoperative cardiovascular instability,asymptomatic myocardial ischemia and infarction.Methods of CAN assessment in clinical practice include assessment of symptoms and signs,cardiovascular reflex tests based on HR and BP,short-term electrocardiography(ECG),QT interval prolongation,HR variability(24 h,classic24 h Holter ECG),ambulatory BP monitoring,HR turbulence,baroreflex sensitivity,muscle sympathetic nerve activity,catecholamine assessment and cardiovascular sympathetic tests,heart sympathetic imaging.Although it is common complication,the significance of CAN has not been fully appreciated and there are no unified treatment algorithms for today.Treatment is based on early diagnosis,life style changes,optimization of glycemic control and management of cardiovascular risk factors.Pathogenetic treatment of CAN includes:Balanced diet and physical activity;optimization of glycemic control;treatment of DLP;antioxidants,first of allα-lipoic acid(ALA),aldose reductase inhibitors,acetylL-carnitine;vitamins,first of all fat-soluble vitamin B1;correction of vascular endothelial dysfunction;prevention and treatment of thrombosis;in severe cases-treatment of OH.The promising methods include prescription of prostacyclin analogues,thromboxane A2 blockers and drugs that contribute into strengthening and/or normalization of Na^+,K^+-ATPase(phosphodiesterase inhibitor),ALA,dihomo-γ-linolenic acid(DGLA),ω-3 polyunsaturated fatty acids(ω-3 PUFAs),and the simultaneous prescription of ALA,ω-3 PUFAs and DGLA,but the future investigations are needed.Development of OH is associated with severe or advanced CAN and prescription of nonpharmacological and pharmacological,in the foreground midodrine and fludrocortisone acetate,treatment methods are necessary.Victoria A Serhiyenko Alexandr A Serhiyenko 2018World Journal of Diabetes2018,9,1:15
6Metal-containing nanomaterials as lubricant additives: State-of-the-art and future development显示文摘This review focuses on the effect of metal-containing nanomaterials on tribological performance in oil lubrication. The basic data on nanolubricants based on nanoparticles of metals, metal oxides, metal sulfides, nanocomposities, and rare-earth compounds are generalized. The influence of nanoparticle size, morphology, surface functionalization, and concentration on friction and wear is analyzed. The lubrication mechanisms of nanolubricants are discussed. The problems and prospects for the development of metal-containing nanomaterials as lubricant additives are considered. The bibliography includes articles published during the last five years.Igor E.UFLYAND Vladimir A.ZHINZHILO Victoria E.BURLAKOVA 2019Friction2019,7,2:15
7Treatment of functional dyspepsia with sertraline:A double-blind randomized placebo-controlled pilot study显示文摘AIM:To evaluate sertraline,a selective serotonin reuptake inhibitor in the treatment of patients with functional dyspepsia.METHODS:Consecutive tertiary hospital patients with a clinical diagnosis of functional dyspepsia(FD) according to the Rome Ⅱ criteria with a Hong Kong dyspepsia index(HKDI) of greater than 16 were recruited.Patients commenced enrolment prior to the inception of the Rome Ⅲ criteria for functional dyspepsia.All patients were ethnic Chinese,had a normal upper endoscopy and were Helicobacter pylori negative prior to enrolment.Study patients were randomized to receive sertraline 50 mg or placebo daily for 8 wk.HKDI symptom scores,quality of life,hospital anxiety and depression(HAD) scale and global symptom relief were evaluated before,during and after treatment.Adverse effects were monitored during and after treatment.RESULTS:A total of 193 patients were randomized in the intention to treat(ITT),and 150 patients were included in the per protocol(PP) analysis.In both the ITT and PP,there was no difference in the primary outcome of global dyspepsia symptoms between the sertraline and placebo groups at week 8.In the ITT analysis,98 and 95 patients were randomized to the sertraline and placebo groups respectively.A total of 43 patients withdrew from the study(22.3%) by week 8,with 23 of the 24 drop-outs in the sertraline group occurring prior to week 4(95.8%).In contrast,in the placebo arm,11 of 19 patients dropped out by week 4(57.9%).Utilizing the last response carried forward to account for the drop-outs,there were no differences between the sertraline and placebo groups at baseline in terms of the HKDI,HKDI 26.08 ± 6.19 vs 26.70 ± 5.89,P = 0.433;and at week 8,HKDI 22.41 ± 6.36 vs 23.25 ± 7.30,P = 0.352 respectively.In the PP analysis,74 and 76 patients were randomized to the sertraline and placebo groups respectively.At baseline,there were no statistically significant differences between the sertraline and placebo groups,HKDI 25.83 ± 6.313 vs 27.19 ± 5.929 respectively,P = 0.233;however by week 8,patients in the sertraline group demonstrated a statistically significant difference in their Hong Kong Dyspepsia Index compared to placebo,HKDI 20.53 ± 6.917 vs 23.34 ± 7.199,P = 0.02,respectively).There was also no statistically significant difference in overall quality of life measures or the HAD scale related to treatment in either the ITT or PP analysis at week 8.CONCLUSION:This pilot study,the first to examine sertraline,a selective serotonin reuptake inhibitor,for the management of FD,did not find that it was superior to placebo.Victoria PY Tan Tin K Cheung Wai M Wong Roberta Pang Benjamin CY Wong 2012World Journal of Gastroenterology2012,18,42:14
8Propofol Attenuates a-Synuclein Aggregation and Neuronal Damage in a Mouse Model of Ischemic Stroke显示文摘a-Synuclein is a soluble monomer abundant in the central nervous system. Aggregates of a-synuclein,consisting of higher-level oligomers and insoluble fibrils,have been observed in many chronic neurological diseases and are implicated in neurotoxicity and neurodegeneration.a-Synuclein has recently been shown to aggregate following acute ischemic stroke, exacerbating neuronal damage.Propofol is an intravenous anesthetic that is commonly used during intravascular embolectomy following acute ischemic stroke. While propofol has demonstrated neuroprotective properties following brain injury, the mechanism of protection in the setting of ischemic stroke is unclear. In this study, propofol administration significantly reduced the neurotoxic aggregation of a-synuclein, decreased the infarct area, and attenuated the neurological deficits after ischemic stroke in a mouse model. We then demonstrated that the propofol-induced reduction of a-synuclein aggregation was associated with increased mammalian target of rapamycin/ribosomal protein S6 kinase beta-1 signaling pathway activity and reduction of the excessive autophagy occurring after acute ischemic stroke.Yuzhu Wang Dan Tian Changwei Wei Victoria Cui Huan Wang Yanbing Zhu Anshi Wu Yun Yue 2020Neuroscience Bulletin2020,36,3:14
9The potential for liquid biopsies in the precision medical treatment of breast cancer显示文摘Currently the clinical management of breast cancer relies on relatively few prognostic/predictive clinical markers(estrogen receptor, progesterone receptor, HER2), based on primary tumor biology. Circulating biomarkers, such as circulating tumor DNA(ctDNA) or circulating tumor cells(CTCs) may enhance our treatment options by focusing on the very cells that are the direct precursors of distant metastatic disease, and probably inherently different than the primary tumor's biology. To shift the current clinical paradigm, assessing tumor biology in real time by molecularly profiling CTCs or ctDNA may serve to discover therapeutic targets, detect minimal residual disease and predict response to treatment. This review serves to elucidate the detection,characterization, and clinical application of CTCs and ctDNA with the goal of precision treatment of breast cancer.Victoria A.Forte Dany K.Barrak Mostafa Elhodaky Lily Tung Anson Snow Julie E.Lang 2016Cancer Biology & Medicine2016,13,1:13
10Evaluation of VEGF gene polymorphisms and proliferative diabetic retinopathy in Mexican population显示文摘● AIM: To assess if the included vascular endothelial growth factor(VEGF) polymorphisms rs3025035, rs3025021 and rs2010963 are associated to proliferative retinopathy in a Mexican population with type 2 diabetes mellitus(T2DM).● METHODS: A case-control study was conducted in adult individuals with T2 DM associated to proliferative retinopathy or non-proliferative retinopathy from Oct. 2014 to Jun. 2015 from the Retina Department of the Asociation to Prevent Blindness in Mexico. The selected patients were adults with a diagnosis of T2 DM ≥5y. All subjects had a comprehensive ocular examination and the classification of the retinopathy severity was made considering the Early Treatment Diabetic Retinopathy Study(ETDRS) standardization protocols. Genomic DNA was extracted from whole fresh blood. All samples were genotyped by q PCR for selected VEGF polymorphisms. Hardy-Weinberg equilibrium was calculated by comparing Chi-square values between the expected and the observed values for genotype counts.● RESULTS: In total 142 individuals were enrolled, 71 individuals with T2 DM and associated proliferative retinopathy and 71 individuals with non-proliferative retinopathy. One-sided Fisher's exact test was performed for rs3025021[OR(95% CI)=0.44(0.08-2.2); P=0.25] and rs2010963 [OR(95% CI)=0.63(0.25-1.6); P=0.23]. The minor allelic frequencies obtained were 26% for rs3025021, 10% for rs3025035 and 61% for rs2010963. The pairwise linkage disequilibrium between the three SNP was assessed, and was as follows: rs3025021 vs rs3025035: D'=1.0, r^2=0.1043, P≤0.0001; rs3025021 vs rs2010963: D'=0.442, r^2=0.0446, P=0.149; rs3025035 vs rs2010963: D'=0.505, r^2=0.0214, P=0.142.● CONCLUSION: This is the first analysis involving VEGFA polymorphisms and proliferative diabetic retinopathy in a Mexican population. A major finding of the present study is that none of the polymorphisms studied was significantly associated with proliferative retinopathy. Based on these results, we can infer that different populations have different associations for the same polymorphisms.Roberto Gonzalez-Salinas Maria C Garcia-Gutierrez Gerardo Garcia-Aguirre Virgilio Morales-Canton Raul Velez-Montoya Vidal R Soberon-Ventura Victoria Gonzalez Rodrigo Lechuga Pablo Garcia-Solis David G Garcia-Gutierrez Marco Vinicio Garcia-Solis Manuel Saenz de Viteri Juan C Solis-S 2017International Journal of Ophthalmology(English edition)2017,10,1:12
11Ear therapy and massage therapy in the elderly with dementia: a pilot study显示文摘OBJECTIVE: To assess the impact of massage versus ear acupuncture on behavior and participation in occupational therapy of dementia patients. METHODS: We performed a controlled, randomized longitudinal trial approved by the Bioethics Commission of the University of Extremadura. One hundred twenty elderly subjects with dementia institutionalized in residential homes in Extremadura (Spain) received treatment based on massage and ear acupuncture over three months. Behavior alterations, sleep disturbance, and participation in rehabilitation and eating were assessed every month during the three months of intervention, and at one and two months of follow-up after the end of treatment. The assessment was performed through a structured questionnaire with closed format ques-tions done by an occupational therapist not involved in the study. RESULTS: There was a statistically significant positive effect of massage and ear acupuncture (P< 0.001) on measured variables in the third month of intervention, which were maintained at two months after completing the treatment (P<0.021), when compared to the control group. CONCLUSION: Massage therapy and ear acupuncture can improve behavior and sleep disturbances, and increase the participation in eating and rehabilitation organized in residential homes, in dementia patients.Juan Rodríguez-Mansilla María Victoria González-LópezArza Enrique Varela-Donoso Jesús Montanero-Fernández María Jiménez-Palomares Elisa Maria Garrido-Ardila 2013Journal of Traditional Chinese Medicine2013,33,4:11
12Earthquake-controlled event deposits and its tectonic significance from the Middle Permian Wandrawandian Siltstone in the Sydney Basin, Australia显示文摘The Sydney-Bowen basin in eastern Australia is an elongate back arc-converted foreland basin system situated between the Lachlan Fold Belt in the west and the New England Fold Belt in the east. The Middle Permian Wandrawandian Siltstone at Warden Head near Ulla- dulla in the southern Sydney Basin is dominated by fossiliferous siltstone and mudstone, with a large amount of dropstones and minor pebbly sandstone beds. Two general types of deposits are recognized from the siltstone unit in view of the timing and mechanism of formation. One is rep- resented by the primary deposits from offshore to subtidal environments with abundant drop- stones of glacial marine origin. The second type is distinguished by secondary, soft-sediment deformational deposits and structures, and comprises three layers of mudstone dykes of seismic origin. In the latter type, metre scale, laterally extensive syn-depositional slump deformation structures occur in the middle part of the Wandrawandian Siltstone. The deformation structures vary in morphology and pattern, including large-scale complex-type folds, flexural stratification, concave-up structures, faulting of small displacements accompanied by folding and brecciation. The slumps and associated syn-sedimentary structures are attributed to penecontemporaneous deformations of soft sediments (mostly silty mud) formed as a result of mass movement of un- consolidated and/or semi-consolidated substrate following an earthquake event. The occurrence of the earthquake event deposits supports the current view that the Sydney Basin was located in a back-arc setting near the New England magmatic arc on an active continental margin during the Middle Permian.DU Yuansheng1, G. R. Shi1,2 & GONG Yiming1 1. Faculty of Earth Sciences, China University of Geosciences, Wuhan 430074, China 2. School of Ecology and Environment, Deakin University, Victoria 3125, Australia 2005Science China Earth Sciences2005,48,9:11
13More anxious than depressed:prevalence and correlates in a 15-nation study of anxiety disorders in people with type 2 diabetes mellitus显示文摘Background Anxiety disorder, one of the highly disabling, prevalent and common mental disorders, is known to be more prevalent in persons with type 2 diabetes mellitus (T2DM) than the general population, and the comorbid presence of anxiety disorders is known to have an impact on the diabetes outcome and the quality of life. However, the information on the type of anxiety disorder and its prevalence in persons with T2DM is limited. Aims To assess the prevalence and correlates of anxiety disorder in people with type 2 diabetes in different countries. Methods People aged 18-65 years with diabetes and treated in outpatient settings were recruited in 15 countries and underwent a psychiatric interview with the Mini-International Neuropsychiatric Interview. Demographic and medical record data were collected. Results A total of 3170 people with type 2 diabetes (56.2% women;with mean (SD) duration of diabetes 10.01 (7.0) years) participated. The overall prevalence of anxiety disorders in type 2 diabetic persons was 18%;however, 2.8% of the study population had more than one type of anxiety disorder. The most prevalent anxiety disorders were generalised anxiety disorder (8.1%) and panic disorder (5.1%). Female gender, presence of diabetic complications, longer duration of diabetes and poorer glycaemic control (HbA1c levels) were significantly associated with comorbid anxiety disorder. A higher prevalence of anxiety disorders was observed in Ukraine, Saudi Arabia and Argentina with a lower prevalence in Bangladesh and India. Conclusions Our international study shows that people with type 2 diabetes have a high prevalence of anxiety disorders, especially women, those with diabetic complications, those with a longer duration of diabetes and poorer glycaemic control. Early identification and appropriate timely care of psychiatric problems of people with type 2 diabetes is warranted.Santosh K Chaturvedi Shayanth Manche Gowda Helal Uddin Ahmed Fahad D Alosaimi Nicola Andreone Alexey Bobrov Viola Bulgari Giuseppe Carra Gianluca Castelnuovo Giovanni de Girolamo Tomasz Gondek Nikola Jovanovic Thummala Kamala Andrzej Ki Nebojsa Lalic Dusica Lecic-Tosevski Fareed Minhas Victoria Mutiso David Ndetei Golam Rabbani Suntibenchakul Somruk Sathyanarayana Srikanta Rizwan Taj Umberto Valentini Olivera Vukovic Wolfgang Wolwer Larry Cimino Arie Nouwen Cathy Lloyd Norman Sartorius 2019General Psychiatry2019,32,4:11
14The life cycle of the 26S proteasome: from birth, through regulation and function, and onto its death显示文摘26S proteasome 是一大, ~ 2.5 MDa,用作 ubiquitin 系统的降级的手臂的多催化的 ATP 依赖的朊酶建筑群,它是主要小径为调整了 cytosolic 的降级,原子并且在所有真核细胞的有机体的膜蛋白质。Ido Livneh Victoria Cohen-Kaplan Chen Cohen-Rosenzweig Noa Avni Aaron Ciechanover 2016Cell Research2016,26,8:11
15Factors influencing syphilis treatment failure and/or re-infection in HIV co-infected patients: immunosuppression or behaviors显示文摘背景最近的研究报导了有高度的梅毒的总的来说增加的率人的免疫不全评估病毒(HIV ) 合作感染。然而,几乎在 HIV 影响梅毒治疗失败或再感染的因素没有很少信息共同感染的病人。我们进行了研究评估在 HIV 与梅毒治疗 failure/re-infection 联系的因素到 2007 年 12 月的从 2005 年 1 月的感染 HIV 的病人的 3542 个医药记录列在后面在上面的我们考察了的共同感染的 patients.Methods 在在纽约的 HIV 诊所城市。病人们被快速的血浆分类重获 titer ( RPR )进 success/serofast (在到在治疗以后的 12 个月的 RPR 的4褶层减少, RPR 变换到没有4褶层增加的非电抗的、固执地稳定的反应 RPR ),并且 failure/re-infection (失败到在到在治疗以后的 12 个月的 RPR 的减少 4 褶层,从基线的 RPR 的4褶层增加)在满足了资格标准的 156 个病人的一个总数之中的 .Results ,( 78.2 ) 122 在 success/serofast 范畴下面,并且( 21.8 ) 34 在 failure/r 下面高度活跃的 antiretroviral 治疗(HAART ) 的 HIV 病毒的负担, CD4 房间计数,和使用没与梅毒治疗 failure/re-infection 被联系。然而,早梅毒舞台(OR:11.036, 95 CI:2.499-48.740, P=0.002 ) 并且高度(164 ) RPR titers (或:715.921, 95 CI:422.175-23 113.396, P 0.001 ) 显著地 associated.Conclusions 没有关联与梅毒治疗失败或再感染与沮丧的有免疫力的州被看见。然而,有早阶段梅毒的协会建议危险心理性行为可以是最重要的带因素,强调对安全的性教育的需要。Jong Hun Kim George Psevdos Jr Jin Suh Victoria Sharp 2011Chinese Medical Journal2011,,14:10
16美国提高护士留任率的策略研究:HUP卓越护理专业实践模式显示文摘全球护士的短缺现状是由许多因素导致的,其中包括普遍因素和仅出现在个别国家的特殊因素,这些因素对护士提出了巨大挑战,并最终可能影响到护理质量“。。护士人力资源短缺的问题在中国同样存在。根据中华人民共和国卫生部的统计数据,截至2009年,中国有218万注册护士和相近数量的注册医生,然而国际标准的医护比最少要求达到1:2,据此可以估计得出,目前中国至少需要450万注册护士”。Victoria L.Rich 叶志弘(译) 2013中国护理管理2013,13,2:10
17Pancreatic neuroendocrine tumors: biology, diagnosis, and treatment显示文摘Pancreatic neuroendocrine tumors (PNETs), a group of endocrine tumors arising in the pancreas, are among the most common neuroendocrine tumors. The genetic causes of familial and sporadic PNETs are somewhat understood, but their molecular pathogenesis remains unknown. Most PNETs are indolent but have malignant potential. The biological behavior of an individual PNET is unpredictable; higher tumor grade, lymph node and liver metastasis, and larger tumor size generally indicate a less favorable prognosis. Endocrine testing, imaging, and histological evidence are necessary to accurately diagnose PNETs. A 4-pronged aggressive treatment approach consisting of surgery, locoregional therapy, systemic therapy, and complication control has become popular in academic centers around the world. The optimal application of the multiple systemic therapeutic modalities is under development; efficacy, safety, availability, and cost should be considered when treating a specific patient. The clinical presentation, diagnosis, and treatment of specific types of PNETs and familial PNET syndromes, including the novel Mahvash disease, are summarized.Cynthia Ro Wanxing Chai Victoria E.Yu Run Yu 2013Chinese Journal of Cancer2013,32,6:10
18Evolutionary history of the flora of Mexico: Dry forests cradles and museums of endemism显示文摘墨西哥与改变的地方性的植物群被认为一个非凡的 biogeographic 区域,生物多样性的然而空间的种系发生的措施还没被估计了理解它的植物群怎么集合了形成当前的植被。neo 和 paleoendemism 的种类丰富, endemism,种系发生的差异,种系发生的 endemism 和中心的模式决心为保存在这些措施,和他们的含意之中检验差别和一致。(42%) 24360 脉管的植物种类中, 10235 是地方性的。endemism 和种系发生的 endemism 的区域在山系统在地志的复杂性的地区与干燥森林被联系,在沙漠,并且在孤立的旱生植物的植被。季节地热带的干燥森林在墨西哥被报导了的每个单个地区作为 endemism 的一个区域被识别。重要种系发生的差异是在 TransMexican 暴烈的带并且在岭 de Chiapas 限制并且发生的大多数。尤其是,包括 neo, paleo,和 superendemism 的种系发生的聚类的最高的度在极南的墨西哥被识别。最脉管的植物系分叉在中新世(5-20mya ) 当干旱环境越过世界膨胀了时。在超过百分之五十它的表面是干旱的二个很大的大陆和事实之间的墨西哥的地点赞成了使适应极端 seasonality 和干旱的热带系的建立。这些系能大概越过中美洲从诺思和南美洲移居在期间中新世并且多样化,与 neo 和 paleoendemism 的混合物说明 endemism 的区域的墨西哥的植物群的签名。Victoria Sosa J. Arturo De-Nova Marilyn Vasquez-Cruz 2018Journal of Systematics and Evolution2018,56,5:10
19Multidisciplinary approach for patients with esophageal cancer显示文摘Patients with esophageal cancer have a poor prognosis because they often have no symptoms until their disease is advanced. There are no screening recommendations for patients unless they have Barrett's esophagitis or a significant family history of this disease. Often, esophageal cancer is not diagnosed until patients present with dysphagia, odynophagia, anemia or weight loss. When symptoms occur, the stage is often stage Ⅲ or greater. Treatment of patients with very early stage disease is fairly straight forward using only local treatment with surgical resection or endoscopic mucosal resection. The treatment of patients who have locally advanced esophageal cancer is more complex and controversial. Despite multiple trials, treatment recommendations are still unclear due to conflicting data. Sadly, much of our data is difficult to interpret due to many of the trials done have included very heterogeneous groups of patients both histologically as well as anatomically. Additionally, studies have been underpowered or stopped early due to poor accrual. In the United States, concurrent chemoradiotherapy prior to surgical resection has been accepted by many as standard of care in the locally advanced patient. Patients who have metastatic disease are treated palliatively. The aim of this article is to describe the multidisciplinary approach used by an established team at a single high volume center for esophageal cancer, and to review the literature which guides our treatment recommendations.Victoria M Villaflor Marco E Allaix Bruce Minsky Fernando A Herbella Marco G Patti 2012World Journal of Gastroenterology2012,18,46:9
20中国卫生人力资源:数量、质量和分布显示文摘在本文中,我们从数量、质量和分布的角度对中国现有的卫生人力资源进行了分析。与绝大多数国家不同,2005年中国拥有的医生总数大于护士总数——注册的执业医师和执业助理医师总数达190多万,注册的护士总数为140多万。城市地区的医生密度是农村地区的2倍多,而城市地区护士的密度是农村地区的3倍多。中国大多数医生(67.2%)和护士(97.5%)所接受的教育仅为大专或中专水平。自1998年以来,中国的医学卫生教育事业有了很大的发展,医学院校不断扩招又导致了卫生人员供过于求的局面。Sudhir Anand Victoria Y Fan Junhua Zhang Lingling Zhang Yang Ke Zhe Dang Lincoln C Chen 2009世界临床医学2009,3,1:9
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