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| 1 | Hepatic Hemangioendothelioma: An update显示文摘Primary epithelioid hemangioendotheliomas of the liver(EHL)are rare tumors with a low incidence.The molecular background of EHL is still under investigation,with WWTR1-CAMPTA1 mutation may function as a tumor marker.Commonly,this tumor is misdiagnosed with angiosarcoma,cholangiocarcinomas,metastatic carcinoma,and hepatocellular carcinoma(sclerosing variant).Characteristic features on imaging modalities such as ultrasound,computed tomography,magnetic resonance imaging and positron emission tomography/computed tomography guide in diagnosis and staging.The“halo sign”and the“lollipop sign”on computed tomography and magnetic resonance imaging are described in the literature.Currently,there are no standardized guidelines for treating EHL with treatment options are broad including:chemotherapy,ablation,surgery and liver transplantation with inconsistent results. | Mayur Virarkar Mohammed Saleh Radwan Diab Melissa Taggart Peeyush Bhargava Priya Bhosale | 2020 | World Journal of Gastrointestinal Oncology2020，12，3： | 8 |
| 2 | Factors that influence adult neurogenesis as potential therapy显示文摘Adult neurogenesis involves persistent proliferative neuroprogenitor populations that reside within distinct regions of the brain.This phenomenon was first described over 50 years ago and it is now firmly established that new neurons are continually generated in distinct regions of the adult brain.The potential of enhancing the neurogenic process lies in improved brain cognition and neuronal plasticity particularly in the context of neuronal injury and neurodegenerative disorders.In addition,adult neurogenesis might also play a role in mood and affective disorders.The factors that regulate adult neurogenesis have been broadly studied.However,the underlying molecular mechanisms of regulating neurogenesis are still not fully defined.In this review,we will provide critical analysis of our current understanding of the factors and molecular mechanisms that determine neurogenesis.We will further discuss pre-clinical and clinical studies that have investigated the potential of modulating neurogenesis as therapeutic intervention in neurodegeneration. | Belal Shohayeb Mohamed Diab Mazen Ahmed Dominic Chi Hiung Ng | 2018 | Translational Neurodegeneration2018，7，1： | 5 |
| 3 | The efficacy of lumbar extension traction for sagittal alignmentin mechanical low back pain: A randomized trial显示文摘 | Aliaa Attiah Mohamed Diab Ibrahim Moustafa Moustafa | 2013 | Journal of Back and Musculokeletal Rehabilitation2013，，： | 1 |
| 4 | A randomized study of the effects of perioperative i.v. lidocaine on hemodynamic and hormonal responses for cesarean section显示文摘 | Mohamed R. El-Tahan Osama M. Warda Douaa G. Diab Eyad A. Ramzy Mohamed K. Matter | 2009 | Journal of Anesthesia2009，，2： | 1 |
| 5 | How to repair the Hill cipher显示文摘The Hill cipher algorithm is one of the symmetric key algorithms that have several advantages in data encryption. However, a main drawback of this algorithm is that it encrypts identical plaintext blocks to identical ciphertext blocks and cannot encrypt images that contain large areas of a single color. Thus, it does not hide all features of the image which reveals patterns in the plaintext. Moreover, it can be easily broken with a known plaintext attack revealing weak security. This paper presents a variant of the Hill cipher that overcomes these disadvantages. The proposed technique adjusts the encryption key to form a dif- ferent key for each block encryption. Visually and computationally, experimental results demonstrate that the proposed variant yields higher security and significantly superior encryption quality compared to the original one. | ISMAIL I.A. AMIN Mohammed DIAB Hossam | 2006 | Journal of Zhejiang University-Science A(Applied Physics & Engineering)2006，7，12： | 1 |
| 6 | Cost of external fixation vs external fixation then nailing in bone infection显示文摘AIM: To study the cost benefit of external fixation vs external fixation then nailing in treatment of bone infection by segment transfer.METHODS: Out of 71 patients with infected nonunion tibia treated between 2003 and 2006, 50 patients fitted the inclusion criteria(26 patients were treated by external fixation only, and 24 patients were treated by external fixation early removal after segment transfer and replacement by internal fixation). Cost of inpatient treatment, total cost of inpatient and outpatient treatment till full healing, and the weeks of absence fromschool or work were calculated and compared between both groups.RESULTS: The cost of hospital stay and surgery in the group of external fixation only was 22.6 ± 3.3 while the cost of hospital stay and surgery in the group of early external fixation removal and replacement by intramedullary nail was 26.0 ± 3.2. The difference was statistically significant regarding the cost of hospital stay and surgery in favor of the group of external fixation only. The total cost of medical care(surgery, hospital stay, treatment outside the hospital including medications, dressing, physical therapy, outpatient laboratory work, etc.) in group of external fixation only was 63.3 ± 15.1, and total absence from work was 38.6 ± 6.6 wk. While the group of early removal of external fixation and replacement by IM nail, total cost of medical care was 38.3 ± 6.4 and total absence from work or school was 22.7 ± 4.1. The difference was statistically significant regarding the total cost and absence from work in favor of the group of early removal and replacement by IM nail.CONCLUSION: Early removal of external fixation and replacement by intramedullary nail in treatment of infected nonunion showed more cost effectiveness. Orthopaedic society needs to show the cost effectiveness of different procedures to the community, insurance, and health authorities. | Khaled Mohamed Emara Ramy Ahmed Diab Khaled Abd EL Ghafar | 2015 | World Journal of Orthopedics2015，6，1： | 1 |
| 7 | Renal involvement in lymphoma: prevalence and various patterns of involvement on abdominal CT显示文摘 | Mohammed Sherif El-Sharkawy Neelam Siddiqui Aamer Aleem Abdulrahman Al Diab | 2007 | International Urology and Nephrology2007，，： | 1 |
| 8 | Load Frequency Control of Multi-interconnected Renewable Energy Plants Using Multi-Verse Optimizer显示文摘A reliable approach based on a multi-verse optimization algorithm(MVO)for designing load frequency control incorporated in multi-interconnected power system comprising wind power and photovoltaic(PV)plants is presented in this paper.It has been applied for optimizing the control parameters of the load frequency controller(LFC)of the multi-source power system(MSPS).The MSPS includes thermal,gas,and hydro power plants for energy generation.Moreover,the MSPS is integrated with renewable energy sources(RES).The MVO algorithm is applied to acquire the ideal parameters of the controller for controlling a single area and a multi-area MSPS integrated with RES.HVDC link is utilized in shunt with AC multi-areas interconnection tie line.The proposed scheme has achieved robust performance against the disturbance in loading conditions,variation of system parameters,and size of step load perturbation(SLP).Meanwhile,the simulation outcomes showed a good dynamic performance of the proposed controller. | Hegazy Rezk Mohamed A.Mohamed Ahmed A.Zaki Diab N.Kanagaraj | 2021 | Computer Systems Science & Engineering2021，37，5： | 0 |
| 9 | Assessment of natural radioactivity levels in Yemen rocks显示文摘 | Haman Mohamed Diab Abou Bakr A. Ramadan Abdel-Hamed Osman | 2009 | Journal of Environmental Science and Engineering2009，3，7： | 0 |
| 10 | Virtual orthopedic assessment:Main principles and specific regions显示文摘Telemedicine was originally created as a way to treat patients who were located in remote places far away from local health facilities or in areas with shortages of medical professionals.Telemedicine is still used today to address those problems,and is increasingly becoming a tool for convenient medical care.With the emergence of pandemics,telemedicine became almost a mandatory and valuable option for continuing to provide medical care in various specialties.As the threat of pandemic progress has continued for months and may continue for years,it is essential to validate existing tools to maintain clinical assessment and patient treatment to avoid negative consequences of the lack of medical follow-up.Therefore,the establishment of a virtual assessment technique that can be conducted effectively is of outmost importance as a way of adapting to the current situation.This study evaluated the role of telemedicine in the assessment of various orthopedic pathologies by means of a systematic virtual evaluation. | Khaled M Emara Ramy Ahmed Diab Mohamed Amr Shady Abdelghaffar Mahmoud Mohamed Nour Ahmed Abdelsalam Mahmoud Ahmed Elshobaky Mona Farhan Mostafa Gemeah Ahmed K Emara | 2021 | World Journal of Orthopedics2021，12，9： | 0 |
| 11 | 埃及开罗国家癌症研究所膀胱癌患者的三维适形根治性放疗与传统的二维根治性放疗的比较剂量学研究(英文)显示文摘Objective: This study was to compare this multiple-field conformal technique to the 2-dimensional (2D) conventional technique with respect to target volume coverage and dose to normal tissues. Methods: We conducted a single institutional prospective comparative dosimetric analysis of 15 patients who received radical radiation therapy for bladder cancer presented to Radiotherapy Department in National Cancer Institute, Cairo (Egypt), in period between November 2011 to July 2012 using 3-dimensional (3D) conformal radiotherapy technique for each patient, a second 2D conventional radiotherapy treatment plan was done, the two techniques were then compared using dose volume histogram (DVH) analysis. Results: Comparing different DVHs, it was found that the planning target volume (PTV) was adequately covered in both (3D & 2D) plans while it was demonstrated that this multiple field conformal technique produced superior distribution compared to 2D technique, with considerable sparing of rectum and to lesser extent for the head of both femora. Conclusion: From the present study, it is recommended to use 3D planning for cases of bladder cancer especially in elderly patients as it produces good coverage of the target volume as well as good sparing of the surrounding critical organs. | Mohamed Mahmoud Hesham A. El-Hossiny Nashaat A. Diab Marwa A. El Razek | 2012 | The Chinese-German Journal of Clinical Oncology2012，11，11： | 0 |
| 12 | 局部晚期宫颈癌调强和适形放疗的剂量学对比研究(英文)显示文摘Objective:This study was to compare 5 field conformal technique to the intensity modulated radiotherapy (IMRT) 8 fields technique in boosting locally advanced cancer cervix cases after external beam radiotherapy with respect to target volume coverage and dose to normal tissues. Methods:We conducted a single institutional comparative dosimetric analysis of 10 patients with cancer cervix who was presented to radiotherapy department in National Cancer Institute, Cairo in period between June 2012 to September 2012 and received a CRT boost in the place of planned brachytherapy after large field pelvic radiotherapy (PRT) with concurrent chemotherapy were retrospectively identified. All tumors were situated in the low central pelvis. Two plans were done for every patient; one using the 8 fields IMRT and the second one using 5 fields' 3DCRT the two techniques were then compared using dose volume histogram (DVH) analysis for the PTV, bladder, rectum and both femoral heads. Results:Comparing different DVHs, it was found that the planning target volume (PTV) was adequately covered in both plans while it was demonstrates that the 8 fields IMRT technique carried less doses reaching OARs (rectum, bladder, both femoral heads). Conclusion:From the present study, it is concluded that IMRT technique spared more efficiently OARs than CRT technique but both techniques covered the PTV adequately so whenever possible IMRT technique should be used. | Mohamed Mahmoud Hesham A. EL-Hossiny Nashaat A. Diab Mahmoud Shosha | 2013 | The Chinese-German Journal of Clinical Oncology2013，12，6： | 0 |
| 13 | Mid-term results of sub-trochanteric valgus osteotomy for symptomatic late stages Legg-Calvé-Perthes disease显示文摘BACKGROUND The treatment of late stages of Legg-Calvé-Perthes disease(LCPD)is controversial.Although the concept of femoral head containment is a well-established technique of treatment,its use remains debatable in the late stages of the disease,as it does not improve symptoms in terms of limb length discrepancy and gait.AIM To assess the results of subtrochanteric valgus osteotomy in symptomatic patients with late-stage Perthes disease.METHODS From 2000 to 2007,36 symptomatic patients with late stage of Perthes disease were surgically treated with subtrochanteric valgus osteotomy and followed-up for 8 to 11 years using the IOWA score and range of motion(ROM)variables.The Mose classification was also assessed at the last follow-up to reflect possible remodeling.The patients were 8 years old or older at the time of surgery,in the post-fragmentation stage,and complaining of pain,limited ROM,Trendelenburg gait,and/or abductor weakness.RESULTS The preoperative IOWA score(average:53.3)markedly improved at the 1-year post follow-up period(average:85.41)and then slightly improved at the last follow-up(average:89.4)(P value<0.05).ROM improved,with internal rotation increased on average by 22°(from 10°preoperatively to 32°postoperatively)and abduction increased on average by 15.9°(from 25°preoperatively to 41°postoperatively).The mean Mose deviation of femoral heads was 4.1 mm at the end of the follow-up period.The tests used were the paired t-test and Pearson correlation test,where the level of significance was a P value less than 0.05.CONCLUSION Subtrochanteric valgus osteotomy can be a good option for symptomatic relief in patients with late-stage of LCPD. | Khaled M Emara Ramy Ahmed Diab Ahmed K Emara Mohamed Eissa Mostafa Gemeah Shady Abdelghaffar Mahmoud | 2023 | World Journal of Orthopedics2023，14，5： | 0 |
| 14 | Presence of Alternaria in Scalp of Patients with Alopecia Areata: Triggering Factor or Coexistence?显示文摘 | Hisham Diab Gaber Ahmed M. Mohamed Reham M. Abdel Gaber | 2015 | Journal of Life Sciences2015，9，7： | 0 |
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