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| 1 | Early therapeutic effect of platelet-rich fibrin combined with allogeneic bone marrow-derived stem cells on rats’ critical-sized mandibular defects显示文摘BACKGROUND Critically sized bone defects represent a significant challenge to orthopaedic surgeons worldwide.These defects generally result from severe trauma or resection of a whole large tumour.Autologous bone grafts are the current gold standard for the reconstruction of such defects.However,due to increased patient morbidity and the need for a second operative site,other lines of treatment should be introduced.To find alternative unconventional therapies to manage such defects,bone tissue engineering using a combination of suitable bioactive factors,cells,and biocompatible scaffolds offers a promising new approach for bone regeneration.AIM To evaluate the healing capacity of platelet-rich fibrin(PRF)membranes seeded with allogeneic mesenchymal bone marrow-derived stem cells(BMSCs)on critically sized mandibular defects in a rat model.METHODS Sixty-three Sprague Dawley rats were subjected to bilateral bone defects of critical size in the mandibles created by a 5-mm diameter trephine bur.Rats were allocated to three equal groups of 21 rats each.Group I bone defects were irrigated with normal saline and designed as negative controls.Defects of group II were grafted with PRF membranes and served as positive controls,while defects of group III were grafted with PRF membranes seeded with allogeneic BMSCs.Seven rats from each group were killed at 1,2 and 4 wk.The mandibles were dissected and prepared for routine haematoxylin and eosin(HE)staining,Masson's trichrome staining and CD68 immunohistochemical staining.RESULTS Four weeks postoperatively,the percentage area of newly formed bone was significantly higher in group III(0.88±0.02)than in groups I(0.02±0.00)and II(0.60±0.02).The amount of granulation tissue formation was lower in group III(0.12±0.02)than in groups I(0.20±0.02)and II(0.40±0.02).The number of inflammatory cells was lower in group III(0.29±0.03)than in groups I(4.82±0.08)and II(3.09±0.07).CONCLUSION Bone regenerative quality of critically sized mandibular bone defects in rats was better promoted by PRF membranes seeded with BMSCs than with PRF membranes alone. | Muhammad A Awadeen Fouad A Al-Belasy Laila E Ameen Mohamad E Helal Mohammed E Grawish | 2020 | World Journal of Stem Cells2020，12，1： | 4 |
| 2 | One-time password system with infinite nested hash chains显示文摘 | MOHAMED H E MUHAMMAD K K KHALED A | 2010 | Communications in Computer and Information Science2010，122，： | 1 |
| 3 | Role of Zr-Co substitution at iron site on structural,magnetieand-eleetrieal properties of Sr-hexaferrites nano-materials synthe-sized by the sol-gel combustion method 显示文摘 | Muhammad N A Muhammad F E Muhammad J L | 2013 | Journal of Magne-tism and Magnetic Materials2013，332，： | 1 |
| 4 | A population-based study of the drug interaction between proton pump inhibitors and clopidogrel显示文摘 | Juurlink David N Gomes Tara Ko Dennis T Szmitko Paul E Austin Peter C Tu Jack V Henry David A Kopp Alex Mamdani Muhammad M | 2009 | Canadian Medical Association. Journal2009，，7： | 1 |
| 5 | Quality eval- uation of fermented products of various local agroindus- trials by-products: The effect on digestibility and growth performance of common carp juvenile 显示文摘 | MUHAMMAD A S GEBBIE E JULIE E | 2012 | Journal Akuakuhur Indonesia2012，11，1： | 1 |
| 6 | E-cadherin and CD10 expression in atypical hyperplastic and malignant endometrial lesions 显示文摘 | Ahmed A R Muhammad E M | 2014 | J Egypt Natl Canc Inst2014，26，4： | 1 |
| 7 | Cosmetic Seaweeds of Pakistan显示文摘 | Muhammad A R Ehsan E V | 2012 | International Journal ofPhycology and Phycochemistry2012，8，2： | 1 |
| 8 | An optimal traction con- trol scheme for off-road operation of robotic vechicles 显示文摘 | Kenneth J W Muhammad E A | 2007 | IEEE/ASME Transactions on Mechatronics2007，12，2： | 1 |
| 9 | Egrets as moni- tors of trace-metal contamination in wetlands of Pakistan显示文摘 | Boncompagni E Muhammad A Jabeen R | 2003 | Ar- chives of Environmental Contamination and Toxicology2003，450，： | 1 |
| 10 | Egrets as monitors of tracemetal contamination in wetland of Pakistan显示文摘 | Boncompagni E Muhammad A Jabeen R Orvini E Gandini C Sanpera C Ruiz X Fasola M | | 0，，： | 1 |
| 11 | Modeling of the thermomechanical behavior of porous shape memory alloys显示文摘 | PAVLIN B E DIMITRIS C L | 2001 | International Journal of Solids and Structures2001，38，： | 1 |
| 12 | Egrets as onitors of race-etal ontamination in etlands of akistan 显示文摘 | Boncompagni E Muhammad A Jabeen R | 2003 | Ar- chives of Environmental Contamination and Toxicology2003，45，3： | 1 |
| 13 | A time and frequency domain approach for identifying nonlinear mechanical system models in the absence of an input measurement显示文摘 | Muhammad H Douglas E A Yiu Wah Luk | 2005 | Journal of Sound and Vibration2005，283，： | 1 |
| 14 | Syn- thesis of Nickel-rubber Nanoeomposites and Evaluation of Their Dielectric Properties显示文摘 | Muhammad Abdul Jamala E Joy P A Kurian P | 2009 | Materials Science and Engi- neering : B2009，156，123： | 1 |
| 15 | Fault prediction using artifical neural network and fuzzy logic显示文摘 | VIRK S M MUHAMMAD A MARTINEZ E A M | 2008 | The 7th Mexican International Conference On Artifical Intelligence2008，，1： | 1 |
| 16 | Chaotic time series prediction with residual analysis method using hybrid EIman-NARX neural networks显示文摘 | Muhammad A E Saeed Z | 2010 | Neurocomputing2010，73，1315： | 1 |
| 17 | Activities of Ni-based nano catalysts for CO2-CH4reforming prepared by polyol process显示文摘 | MUHAMMAD A N AHMED S Al-F AHMDD E A | 2014 | Fuel Processing Technology2014，122，7： | 1 |
| 18 | Zinc-oxide/PDMS-clad tapered fiber saturable absorber for passively mode-locked erbium-doped fiber laser显示文摘We propose and demonstrate a passively mode-locked erbium-doped fiber laser(EDFL)based on zinc-oxide/polydimethylsiloxane(ZnO/PDMS)saturable absorber(SA)that evanescently interacts with the light on a tapered fiber.The ZnO/PDMS composite is coated on the whole surface of the tapered fiber to guarantee the maximum efficiency of the SA device,with a measured insertion loss of 0.87 dB and a modulation depth of 6.4%.The proposed laser can generate soliton mode-locking operation at a threshold power of 33.07 mW.The generated output pulse yields a repetition rate and pulse width of 9.77 MHz and 1.03 ps,respectively.These results indicate that the proposed ZnO/PDMS-clad tapered fiber could be useful as an efficient,compatible,and low-cost SA device for ultrafast laser applications. | F D Muhammad S A S Husin E K Ng K Y Lau C A C Abdullah M A Mahdi | 2021 | Chinese Physics B2021，30，5： | 0 |
| 19 | Decline in subarachnoid haemorrhage volumes associated with the first wave of the COVID- 19 pandemic显示文摘Background During the COVID-19 pandemic,decreased volumes of stroke admissions and mechanical thrombectomy were reported.The study’s objective was to examine whether subarachnoid haemorrhage(SAH)hospitalisations and ruptured aneurysm coiling interventions demonstrated similar declines.Methods We conducted a cross-sectional,retrospective,observational study across 6 continents,37 countries and 140 comprehensive stroke centres.Patients with the diagnosis of SAH,aneurysmal SAH,ruptured aneurysm coiling interventions and COVID-19 were identified by prospective aneurysm databases or by International Classification of Diseases,10th Revision,codes.The 3-month cumulative volume,monthly volumes for SAH hospitalisations and ruptured aneurysm coiling procedures were compared for the period before(1 year and immediately before)and during the pandemic,defined as 1 March-31 May 2020.The prior 1-year control period(1 March-31 May 2019)was obtained to account for seasonal variation.Findings There was a significant decline in SAH hospitalisations,with 2044 admissions in the 3 months immediately before and 1585 admissions during the pandemic,representing a relative decline of 22.5%(95%CI−24.3%to−20.7%,p<0.0001).Embolisation of ruptured aneurysms declined with 1170-1035 procedures,respectively,representing an 11.5%(95%CI−13.5%to−9.8%,p=0.002)relative drop.Subgroup analysis was noted for aneurysmal SAH hospitalisation decline from 834 to 626 hospitalisations,a 24.9%relative decline(95%CI−28.0%to−22.1%,p<0.0001).A relative increase in ruptured aneurysm coiling was noted in low coiling volume hospitals of 41.1%(95%CI 32.3%to 50.6%,p=0.008)despite a decrease in SAH admissions in this tertile.Interpretation There was a relative decrease in the volume of SAH hospitalisations,aneurysmal SAH hospitalisations and ruptured aneurysm embolisations during the COVID-19 pandemic.These findings in SAH are consistent with a decrease in other emergencies,such as stroke and myocardial infarction. | Thanh N Nguyen Diogo C Haussen Muhammad M Qureshi Hiroshi Yamagami Toshiyuki Fujinaka Ossama Y Mansour Mohamad Abdalkader Michael Frankel Zhongming Qiu Allan Taylor Pedro Lylyk Omer F Eker Laura Mechtouff Michel Piotin Fabricio Oliveira Lima Francisco Mont'Alverne Wazim Izzath Nobuyuki Sakai Mahmoud Mohammaden Alhamza R Al-Bayati Leonardo Renieri Salvatore Mangiafico David Ozretic Vanessa Chalumeau Saima Ahmad Umair Rashid Syed Irteza Hussain Seby John Emma Griffin John Thornton Jose Antonio Fiorot Rodrigo Rivera Nadia Hammami Anna M Cervantes-Arslanian Hormuzdiyar H Dasenbrock Huynh Le Vu Viet Quy Nguyen Steven Hetts Romain Bourcier Romain Guile Melanie Walker Malveeka Sharma Don Frei Pascal Jabbour Nabeel Herial Fawaz Al-Mufti Atilla Ozcan Ozdemir Ozlem Aykac Dheeraj Gandhi Chandril Chugh Charles Matouk Pascale Lavoie Randall Edgell Andre Beer-Furlan Michael Chen Monika Killer-Oberpfalzer Vitor Mendes Pereira Patrick Nicholson Vikram Huded Nobuyuki Ohara Daisuke Watanabe Dong Hun Shin Pedro SC Magalhaes Raghid Kikano Santiago Ortega-Gutierrez Mudassir Farooqui Amal Abou-Hamden Tatsuo Amano Ryoo Yamamoto Adrienne Weeks Elena A Cora Rotem Sivan-Hoffmann Roberto Crosa Markus Möhlenbruch Simon Nagel Hosam Al-Jehani Sunil A Sheth Victor S Lopez Rivera James E Siegler Achmad Fidaus Sani Ajit S Puri Anna Luisa Kuhn Gianmarco Bernava Paolo Machi Daniel G Abud Octavio M Pontes-Neto Ajay K Wakhloo Barbara Voetsch Eytan Raz Shadi Yaghi Brijesh P Mehta Naoto Kimura Mamoru Murakami Jin Soo Lee Ji Man Hong Robert Fahed Gregory Walker Eiji Hagashi Steve M Cordina Hong Gee Roh Ken Wong Juan F Arenillas Mario Martinez-Galdamez Jordi Blasco Alejandro Rodriguez Vasquez Luisa Fonseca M Luis Silva Teddy Y Wu Simon John Alex Brehm Marios Psychogios William J Mack Matthew Tenser Tatemi Todaka Miki Fujimura Roberta Novakovic Jun Deguchi Yuri Sugiura Hiroshi Tokimura Rakesh Khatri Michael Kelly Lissa Peeling Yuichi Murayama Hugh Stephen Winters Johnny Wong Mohamed Teleb Jeremy Payne Hiroki Fukuda Kosuke Miyake Junsuke Shimbo Yusuke Sugimura Masaaki Uno Yohei Takenobu Yuji Matsumaru Satoshi Yamada Ryuhei Kono Takuya Kanamaru Masafumi Morimoto Junichi Iida Vasu Saini Dileep Yavagal Saif Bushnaq Wenguo Huang Italo Linfante Jawad Kirmani David S Liebeskind Viktor Szeder Ruchir Shah Thomas G Devlin Lee Birnbaum Jun Luo Anchalee Churojana Hesham E Masoud Carlos Ynigo Lopez Brendan Steinfort Alice Ma Ameer E Hassan Amal Al Hashmi Mollie McDermott Maxim Mokin Alex Chebl Odysseas Kargiotis Georgios Tsivgoulis Jane G Morris Clifford J Eskey Jesse Thon Leticia Rebello Dorothea Altschul Oriana Cornett Varsha Singh Jeyaraj Pandian Anirudh Kulkarni Pablo M Lavados Veronica V Olavarria Kenichi Todo Yuki Yamamoto Gisele Sampaio Silva Serdar Geyik Jasmine Johann Sumeet Multani Artem Kaliaev Kazutaka Sonoda Hiroyuki Hashimoto Adel Alhazzani David Y Chung Stephan A Mayer Johanna T Fifi Michael D Hill Hao Zhang Zhengzhou Yuan Xianjin Shang Alicia C Castonguay Rishi Gupta Tudor G Jovin Jean Raymond Osama O Zaidat Raul G Nogueira SVIN COVID-19 Registry,the Middle East North Africa Stroke and Interventional Neurotherapies Organization(MENA-SINO),Japanese Society of Vascular and Interventional Neurology Society(JVIN) | 2021 | Stroke & Vascular Neurology2021，6，4： | 0 |
| 20 | Deceased donor organ procurement injuries in the United States显示文摘AIM: To determine the incidence of surgical injury during deceased donor organ procurements. METHODS: Organ damage was classified into three tiers, from 1-3, with the latter rendering the organ nontransplantable. For 12 consecutive months starting in January of 2014, 36 of 58 organ procurement organization's(OPO)'s prospectively submitted quality data regarding organ damage(as reported by the transplanting surgeon and confirmed by the OPO medical director) seen on the procured organ.RESULTS: These 36 OPOs recovered 5401 of the nations' s 8504 deceased donors for calendar year 2014.A total of 19043 organs procured were prospectively analyzed. Of this total, 59 organs sustained damage making them non-transplantable(0 intestines; 4 pancreata; 5 lungs; 6 livers; 43 kidneys). The class 3 damage was spread over 22(of 36) reporting OPO's.CONCLUSION: While damage to the procured organ is rare with organ loss being approximately 0.3% of procured organs, loss of potential transplantable organs does occur during procurement. | Tim E Taber Nikole A Neidlinger Muhammad A Mujtaba Elling E Eidbo Roxane L Cauwels Elizabeth M Hannan Jennifer R Miller Anil S Paramesh | 2016 | World Journal of Transplantation2016，6，2： | 0 |
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