|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Updates in the pathophysiological mechanisms of Parkinson's disease: Emerging role of bone marrow mesenchymal stem cells显示文摘AIM: To explore the approaches exerted by mesenchymal stem cells(MSCs) to improve Parkinson's disease(PD) pathophysiology.METHODS: MSCs were harvested from bone marrowof femoral bones of male rats, grown and propagated in culture. Twenty four ovariectomized animals were classified into 3 groups: Group(1) was control, Groups(2) and(3) were subcutaneously administered with rotenone for 14 d after one month of ovariectomy for induction of PD. Then, Group(2) was left untreated, while Group(3) was treated with single intravenous dose of bone marrow derived MSCs(BM-MSCs). SRY gene was assessed by PCR in brain tissue of the female rats. Serum transforming growth factor beta-1(TGF-β1), monocyte chemoattractant protein-1(MCP-1) and brain derived neurotrophic factor(BDNF) levels were assayed by ELISA. Brain dopamine DA level was assayed fluorometrically, while brain tyrosine hydroxylase(TH) and nestin gene expression were detected by semi-quantitative real time PCR. Brain survivin expression was determined by immunohistochemical procedure. Histopathological investigation of brain tissues was also done.RESULTS: BM-MSCs were able to home at the injured brains and elicited significant decrease in serum TGF-β1(489.7 ± 13.0 vs 691.2 ± 8.0, P < 0.05) and MCP-1(89.6 ± 2.0 vs 112.1 ± 1.9, P < 0.05) levels associated with significant increase in serum BDNF(3663 ± 17.8 vs 2905 ± 72.9, P < 0.05) and brain DA(874 ± 15.0 vs 599 ± 9.8, P < 0.05) levels as well as brain TH(1.18 ± 0.004 vs 0.54 ± 0.009, P < 0.05) and nestin(1.29 ± 0.005 vs 0.67 ± 0.006, P < 0.05) genes expression levels. In addition to, producing insignificant increase in the number of positive cells for survivin(293.2 ± 15.9 vs 271.5 ± 15.9, P > 0.05) expression. Finally, the brain sections showed intact histological structure of the striatum as a result of treatment with BM-MSCs. CONCLUSION: The current study sheds light on the therapeutic potential of BM-MSCs against PD pathophysiology via multi-mechanistic actions. | Hanaa H Ahmed Ahmed M Salem Hazem M Atta Emad F Eskandar Abdel Razik H Farrag Mohamed A Ghazy Neveen A Salem Hadeer A Aglan | 2016 | World Journal of Stem Cells2016，8，3： | 9 |
| 2 | Endoscopic assessment and management of early esophageal adenocarcinoma显示文摘Esophageal carcinoma affects more than 450000people worldwide and the incidence is rapidly increasing.In the United States and Europe,esophageal adenocarcinoma has superseded esophageal squamous cell carcinoma in its incidence.Esophageal cancer has a high mortality rates secondary to the late presentation of most patients at advanced stages.Endoscopic screening is recommended for patients with multiple risk factors for cancer in Barrett’s esophagus.These risk factors include chronic gastroesophageal reflux disease,hiatal hernia,advanced age,male sex,white race,cigarette smoking,and obesity.The annual risk of esophageal cancer is approximately 0.25%for patients without dysplasia and 6%for patients with high-grade dysplasia.Twenty percent of all esophageal adenocarcinoma in the United States is early stage with disease confined to the mucosa or submucosa.The significant morbidity and mortality of esophagectomy make endoscopic treatment an attractive option.The American Gastroenterological Association recommends endoscopic eradication therapy for patients with high-grade dysplasia.Endoscopic modalities for treatment of early esophageal adenocarcinoma include endoscopic resection techniques and endoscopic ablative techniques such as radiofrequency ablation,photodynamic therapy and cryoablation.Endoscopic therapy should be precluded to patients with no evidence of lymphovascular invasion.Local tumor recurrence is low after endoscopic therapy and is predicted by poor differentiation of tumor,positive lymph node and submucosal invasion.Surgical resection should be offered to patients with deep submucosal invasion. | Ghassan M Hammoud Hazem Hammad Jamal A Ibdah | 2014 | World Journal of Gastrointestinal Oncology2014，6，8： | 4 |
| 3 | Ghrelin attenuates gastrointestinal epithelial damage induced by doxorubicin显示文摘AIM:To examine the influence of ghrelin on the regenerative potential of gastrointestinal(GI)epithelium.METHODS:Damage to GI epithelium was induced in mice by two intravenous injections of doxorubicin(10 and 6 mg/kg).Some of the doxorubicin-treated mice received a continuous subcutaneous infusion of ghrelin(1.25μg/h)for 10 d via implanted mini-osmotic pumps.To label dividing stem cells in the S-phase of the cell cycle,all mice received a single intraperitoneal injection of 5'-bromo-2'-deoxyuridine(BrdU)one hour before sacrifice.The stomach along with the duodenum were then removed and processed for histological examination and immunohistochemistry using anti-BrdU antibody.RESULTS:The results showed dramatic damage to the GI epithelium 3 d after administration of chemotherapy which began to recover by day 10.In ghrelintreated mice,attenuation of GI mucosal damage was evident in the tissues examined postchemotherapy.Immunohistochemical analysis showed an increase in the number of BrdUlabeled cells and an alteration in their distribution along the epithelial lining in response to damage by doxorubicin.In mice treated with both doxorubicin and ghrelin,the number of BrdUlabeled cells was reduced when compared with mice treated with doxorubicin alone.CONCLUSION:The present study suggests that ghrelin enhances the regenerative potential of the GI epithelium in doxorubicintreated mice,at least in part,by modulating cell proliferation. | Mohamed A Fahim Hazem Kataya Rkia El-Kharrag Dena AM Amer Basel al-Ramadi Sherif M Karam | 2011 | World Journal of Gastroenterology2011，17，33： | 3 |
| 4 | Tunica albuginea allograft: a new model of LaPeyronie's disease with penile curvature and subtunical ossification显示文摘LaPeyronie 的疾病(PD ) 的 pathophysiology 被认为是 multifactorial,包含愈合的基因倾向,损伤,发炎和改变的创伤。然而,这些因素还没用动物模型被验证了。在这研究,我们介绍了 tunica albuginea allograft 获得的一个新模型。40 的一个总数, 16-week-old 男性老鼠被使用。这些, 8 只老鼠用作控制并且经历了 10 ×有随后的 autografting 的 2-mm-wide tunical 切除,而留下 32 与另一只老鼠的 tunica 与缺点的 grafting 经历了一样的切除。词法、功能测试在 grafting 以后在 1, 3, 7 和 12 个星期被执行。Intracavernous 压力,阴茎弯曲的度和有弹性的纤维长度为在 allograft 和控制组之间的比较被评估。纸巾为组织学的检查被获得。阴茎弯曲作为与控制老鼠相比在 allografted 老鼠是显著地更大的。可勃起的功能在所有老鼠被维持,除了在在 12 个星期估计的那些。弹力素纤维长度作为与控制相比在 allografted tunica 被减少。SMAD2 表示在 allograft 的内部部分被检测,并且 collagen-II- 和 osteocalcin 积极的房间也被注意。在老鼠的 Tunica albuginea (TA ) allograft 是 PD 的一个优秀模型。在 12 个星期和在 TA 的内部层的骨化的存在以后的弯曲的坚持类似于与 PD 在人观察的那些。用这个动物模型的确认研究将为有效治疗学的干预帮助 PD pathophysiology 的理解。 | Ludovic Ferretti Thomas M Fandel Xuefeng Qiu Haiyang Zhang Hazem Orabi Alex K Wu Lia Banie Guifang Wang Guiting Lin Ching-Shwun Lin Tom FLue | 2014 | Asian Journal of Andrology2014，16，4： | 3 |
| 5 | Total pancreatectomy: Short- and long-term outcomes at a high-volume pancreas center显示文摘AIM To identify the current indications and outcomes of total pancreatectomy at a high-volume center. METHODS A single institutional retrospective study of patients undergoing total pancreatectomy from 1995 to 2014 was performed.RESULTS One hundred and three patients underwent totalpancreatectomy for indications including: Pancreatic ductal adenocarcinoma(n = 42, 40.8%), intraductal papillary mucinous neoplasms(n = 40, 38.8%), chronic pancreatitis(n = 8, 7.8%), pancreatic neuroendocrine tumors(n = 7, 6.8%), and miscellaneous(n = 6, 5.8%). The mean age was 66.2 years, and 59(57.3%) were female. Twenty-four patients(23.3%) underwent a laparoscopic total pancreatectomy. Splenic preservation and portal vein resection and reconstruction were performed in 24(23.3%) and 18 patients(17.5%), respectively. The 90 d major complications, readmission, and mortality rates were 32%, 17.5%, and 6.8% respectively. The 1-, 3-, 5-, and 7-year survival for patients with benign indications were 84%, 82%, 79.5%, and 75.9%, and for malignant indications were 64%, 40.4%, 34.7% and 30.9%, respectively.CONCLUSION Total pancreatectomy, including laparoscopic total pancreatectomy, appears to be an appropriate option for selected patients when treated at a high-volume pancreatic center and through a multispecialty approach. | Hazem M Zakaria John A Stauffer Massimo Raimondo Timothy A Woodward Michael B Wallace Horacio J Asbun | 2016 | World Journal of Gastrointestinal Surgery2016，8，9： | 3 |
| 6 | Automated Vision System for Localizing Structure Defects in Textile Fabrics显示文摘 | Abouelela A Hazem M A Hesham E | 2005 | Pattern Recognition Letters2005，26，10： | 1 |
| 7 | Prophylactic tracheal intubation for upper GI bleeding: A meta-analysis显示文摘AIM: To evaluate usefulness of prophylactically intubating upper gastrointestinal bleeding(UGIB) patients. METHODS: UGIB results in a significant number of hospital admissions annually with endoscopy being the key intervention. In these patients, risks are associated with the bleeding and the procedure, including pulmonary aspiration. However, very little literature is available assessing the use of prophylactic endotracheal intubation on aspiration in these patients. A comprehensive search was performed in May 2014 in Scopus, CINAHL, Cochrane databases, Pub Med/Medline, Embase, and published abstracts from national gastroenterology meetings in the United States(2004-2014). Included studies examined UGIB patients and compared prophylactic intubation to no intubation before endoscopy. Meta-analysis was conducted using Rev Man 5.2 by Mantel-Haenszel and Der Simonian and Laird models with results presented as odds ratio for aspiration, pneumonia(within 48 h), and mortality. Funnel plots were utilized for publication bias and I2 measure of inconsistency for heterogeneity assessments. RESULTS: Initial search identified 571 articles. Of these articles, 10 relevant peer-reviewed articles in English and two relevant abstracts were selected to review by two independent authors(Almashhrawi AA and Bechtold ML). Of these studies, eight were excluded: Five did not have a control arm, one was a letter the editor, one was a survey study, and one was focused on prevention of UGIB. Therefore, four studies(N = 367) were included. Of the UGIB patients prophylactically intubated before endoscopy, pneumonia(within 48 h) was identified in 20 of 134(14.9%) patients as compared to 5 of 95(5.3%) patients that were not intubated prophylactically(P = 0.02). Despite observed trends, no significantdifferences were found for mortality(P = 0.18) or aspiration(P = 0.11).CONCLUSION: Pneumonia within 48 h is more likely in UGIB patients who received prophylactic endotracheal intubation prior to endoscopy. | Ashraf A Almashhrawi Rubayat Rahman Samuel T Jersak Akwi W Asombang Alisha M Hinds Hazem T Hammad Douglas L Nguyen Matthew L Bechtold | 2015 | World Journal of Meta-Analysis2015，3，1： | 1 |
| 8 | A Review of Pneumatic Actuators (modeling and Control)显示文摘 | Hazem I Ali Samsul Bahari B Mohd Noor S M Bashi M H Marhaban | 2009 | Australian Journal of Basic and Applied Sciences2009，3，2： | 1 |
| 9 | Application of neural networks to an emerging financial market: Forecasting and trading the Taiwan Stock Index显示文摘 | Chen A Leung M T Hazem D | 2003 | Computers and Operations Research2003，30，： | 1 |
| 10 | Obesity-related Differential Gene Expression in the Visceral Adipose Tissue显示文摘 | Ancha Baranova Rochelle Collantes Shobha J Gowder Hazem Elariny Karen Schlauch Abraham Younoszai Steve King Manpreet Randhawa Sitapati Pusulury Tariq Alsheddi Janus P Ong Lisa M Martin Vikas Chandhoke Zobair M Younossi | 2005 | Obesity Surgery2005，，6： | 1 |
| 11 | Automated vision system for localizing structural defects in textile fabrics显示文摘 | ABOUELELA Ahmed ABBAS Hazem M ELDEEB Hesham | 2005 | Pattern Recognition Letter2005，26，10： | 1 |
| 12 | Recurrent laryngeal nerve injury in thyroid surgery显示文摘 | Hazem M Zakaria Naif A | 2011 | Oman Med J2011，26，： | 1 |
| 13 | Automated vision system for localizing structural defects in textile fabrics 显示文摘 | Abouelela A Hazem M A Hesham E d al | 2005 | Pattern Recognition Letters2005，26，10： | 1 |
| 14 | Recurrent laryngeal nerve injury inthyroid surgery显示文摘 | Hazem M Zakaria NaifA | 2011 | Oman Med J2011，26，： | 1 |
| 15 | Automated vision system for localizing structural defects in textile fabrics 显示文摘 | Ahmed Abouelela Hazem M Abbas Hesham Eldeeb | 2005 | Pattern Recognition Letters2005，26，10： | 1 |
| 16 | Automated vision system for localizing structural defects in textile fabrics显示文摘 | Ahmed Abouelela Hazem M Abbas | 2005 | Pattern Recognition Letters2005，，26： | 1 |
| 17 | Nonpenetraing deep sclerectomy versus trabeculectomy in bilateral primary open-angle glaucoma 显示文摘 | Sayyad F HelaL M Hazem E | 2000 | Ophthalmolgy2000，107，9： | 1 |
| 18 | A Review of Pneumatic Actuators(Modeling and Control) 显示文摘 | Hazem I AIi Samsul Bahari B Mohd Noor S M Bashi | 2009 | Australian Journal of Basic and Applied Sciences2009，，2： | 1 |
| 19 | Efficacy of intrathecal dexmedetomidine in prevention of shivering in patients undergoing transurethral prostatectomy:A randomized controlled trial显示文摘 | El Hazem SM Mohamed M | 2015 | Eg J Anaesth2015，31，2： | 1 |
| 20 | Automated vision system for localizing structural defects in textile fabrics显示文摘 | AHMED A HAZEM M HESHAM E | 2005 | Pattern Recognition Letters2005，26，： | 1 |
您所在的机构暂未开通此部分的功能，请联系管理员