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Open Journal of Stomatology 2017年第8期7卷 345-352页

作者： Omar Amir El Hag Elneel ahmed Mohamed Ali Musadak Ali Karrar Osman OMF Surgery Gazira University Wad Medani Sudan OMF Surgery Faculty of Dentistry University of Khartoum Khartoum Sudan OMFs Section Dental Department King Faisal Specialist Hospital & Research Center Riyadh KSA

Background: Lymphatic malformations are developmental defects of the lymphatic system. They are frequently present at birth and are most commonly found in the head and neck regions. The aim of the study was to investigate the clinical presentation of head and neck Lymphatic malformations in relation to, age, gender, color and site of distribution. Methods: This is a retrospective descriptive study, where the record of the patient diagnosed as lymphatic malformation at the Department of Oral and Maxillofacial Surgery at Khartoum Teaching Dental Hospital, during the period of 2005 to 2008 where retrieved and analysed. Result: A cervicofacial lymphatic malformation was found more common in females than in males with a ratio of 11:9. The mean age was 14 ± 10 years, with lip and tongue being the most common sites, followed by the buccal mucosa in the intraoral site and neck in the posterior triangle was the most common site for extraoral site (30%). It was found that the bluish color was the commonest presenting color in oral lymphangioma followed by red pink color. Conclusion: Females are more affected than males, while infants and children were more affected than other age groups. The bulks of the patients were presented with soft swelling, blue to normal colour in the lip, neck and in the tongue. Further prospective studies are needed to evaluate the clinic picture and treatment outcome.

关键词： Lymphangioma Lymphatic Malformation Maxillofacial Tumor Sudan

<i>Salvadora persica</i>(Miswak): Antioxidant and Promising Antiangiogenic Insights

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American Journal of Plant Sciences 2018年第6期9卷 1228-1244页

作者： Bayan Al-Dabbagh Ismail A Elhaty Chandraprabha Murali ahmed Al Madhoon Amr Amin Department of Chemistry College of Science UAE University Al Ain UAE Department of Biology College of Science UAE University Al Ain UAE

The use of plants to improve dental health and to promote oral hygiene has been practiced for centuries and persists in several communities throughout the world. Salvadora persica (Miswak) has a wide geographic distribution. The ancient Arabs had the habit of using it to whiten and polish the teeth. Here, we determined in vitro antioxidant activity, total phenols and flavonoids and evaluated antiproliferative activity of the extract of S. persica (Miswak). The MTT assay was used to estimate the antiproliferative activities of the extract against human hepatoma (HepG2) cancer cell line. Inhibition percentage of DPPH scavenging activity was dose-dependent and ranged from (30.7% ± 0.62) to (5.89% ± 0.98). The phenolic content was (2.7 ± 0.11) mg GAE/g while the flavonoid content was (2.70 ± 0.45) mg QE/g. Antiproliferative results of the extracts were found to be consistent with their antioxidant activity. Our extract also exhibited clear antiangiogenic activity. These findings introduce S. persica as the useful and novel potential anti-tumor agent for hepatocellular carcinoma (HCC) treatment.

关键词： Salvadora persica Antioxidants Anticancer Medicinal Plants Traditional Medicine

Hepatic manifestations of coronavirus disease 2019 infection:Clinical and laboratory perspective

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World Journal of Virology 2022年第6期11卷 453-466页

作者： Farina M Hanif Zain Majid Shoaib ahmed Nasir H Luck Muhammed Mubarak Department of Hepatogastroenterology Sindh Institute of Urology and TransplantationKarachi 74200SindhPakistan Department of Pathology Sindh Institute of Urology and TransplantationKarachi 74200SindhPakistan

The novel coronavirus disease 2019(COVID-19)pandemic,caused by severe acute respiratory syndrome coronavirus 2,has become a global challenge of unprecedented nature since December *** most patients with COVID-19 exhibit mild clinical manifestations and upper respiratory tract involvement,in approximately 5%-10%of patients,the disease is severe and involves multiple organs,leading to multi-organ dysfunction and *** liver and gastrointestinal tract are also frequently involved in *** the context of liver involvement in patients with COVID-19,many key aspects need to be addressed in both native and transplanted *** review focuses on the clinical presentations and laboratory abnormalities of liver function tests in patients with COVID-19 with no prior liver disease,patients with pre-existing liver diseases and liver transplant recipients.A brief overview of the history of COVID-19 and etiopathogenesis of the liver injury will also be described as a prelude to better understanding the above aspects.

关键词： COVID-19 Liver injury SARS-CoV-2 Clinical manifestations Liver function tests Cirrhosis

High Protein Diet that Cause Weight Loss and Lower Blood Glucose Level Have a Serious Impact on the Kidney Functions of Male Diabetic Obese Albino Rats

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Food and Nutrition Sciences 2018年第10期9卷 1174-1191页

作者： ahmed El-Sayed Nour El-Deen Abd El-Megeed Mansour Ahmad Taha Department of Physiology Faculty of Medicine Al-Azhar University Assuit Egypt Department of Physiology Faculty of Medicine Port Said University Port Said Egypt

Background: High protein (HP) diets are increasingly being recommended as one of the management strategies for weight control in overweight and obese individuals. The health benefits of high protein diets are well-established, but the mechanisms of action on body systems responsible for the changes in body weight and glycaemic control are not well-clear. Objective: The present study aimed to examine the effect of HP diets on the kidney functions of diabetic obese albino rats. Material and Methods: Eighty male adult male albino rats were used in this study. The animals were divided into eight equal groups (10 rats for each). Type 2 DM and obesity were induced. At the end of the 12 weeks, samples were collected for biochemical analysis. Results: The high protein diet led to significant decrease in BW, FI, BG, TC, LDL, TG, Lactate dehydrogenase, albumin, urine pH and urine citrate;while serum insulin, HDL, urea, creatinine, total protein, urine volume and urinary excretion of Ca were significantly higher in high protein diet groups. Conclusion: A high protein intake in diabetic obese albino rats for 12 weeks led to changes in the serum and urine levels of markers of renal function which indicated abnormalities in the functions of the kidney.

关键词： Obesity Diabetes High Protein Diet Kidney Functions

Synthesis, Characterizations, Biological, and Molecular Docking Studies of Some Amino Acid Schiff Bases with Their Cobalt(II) Complexes

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Advances in Biological Chemistry 2017年第5期7卷 182-194页

作者： Mabrouk M. Salama Soad G. ahmed Safaa S. Hassan Department of Chemistry Faculty of Science University of Benghazi Benghazi Libya Department of Chemistry Faculty of Science University of Cairo Cairo Egypt

The synthesis and structural characterization of cobalt(II) complexes of amino acid Schiff bases was prepared from Salicylaldehyde and three amino acid (Valine, Leucine, and Isoleucine)?in basic medium. The metal complexes was synthesized by treating an ethanolic solution of the ligand with appropriate amount of metal salts [1:2] [M:L] ratio. The synthesized Schiff bases and their metal complexes have been investigated on the bases of elemental chemical analysis, FTIR, electronic spectral,?1HNMR,?13CNMR, MS, molar conductance and magnetic susceptibility measurements. The electronic spectra of the metal complexes and their magnetic susceptibility measurements suggest octahedral structures are the probable coordination geometries for the isolated complexes. The Schiff bases and their metal complexes were preliminary scanned against various strains of microbes to study their biological effect.

关键词： Schiff Base Salicylaldehyde Co(II) Metal Complex Spectroscopic Techniques Biological Effect Molecular Docking

Cartography of Air Pollution in an Industrial City in North-Eastern Algeria by Using Two Indexes： Poleotolerance Index and Atmospheric Purity Index

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Journal of Life Sciences 2014年第1期8卷 95-100页

作者： Djamel Fadel ahmed Soufiane Sid Nadla Zga Filali Latreche Abdelkarim Ouamer Ali Institute Agro-Veterinary Taoura Laboratory Life Science and Technology University of Mohamed Cherif Messaadia Route d 'Annaba 41000 Algeria Planning Department Laboratory of Natural Resources and Sustainable Development University of Annaba B.P/12 Annaba 23000 Algeria

Of all the methods of studies on bio-estimation of air pollution by lichen flora, the authors cannot justify a choice of one method over another. Consultation of previous work by researchers has allowed us to compare these methods and to better understand their strengths and limitations. Under the terms of estimating the pollution, these methods are classified into three categories. Some are qualitative, quantitative and others are finally some indirect methods. The methods used to assess the overall air pollution relative value for each station studied. As part of our work, the authors have chosen a quantitative approach based on the combination of two methods. They are based on pollution indices obtained from mathematical formulas based on various parameters related to the lichen flora. They are represented by the I.P. （index poleotolerance） and the I.A.P. （index of atmospheric purity） and these two indices allowed us to map of global air pollution in the city of Skikda and petrochemical industry as well as peri-urban areas （Haddaiek, Hamadi Krouma, Hamrouche Hamoudi, Larbi Ben M＇Hidi）. The authors have identified areas of iso-pollution around different emission centers represented by the largest petrochemical area, traffic and households in urban areas of Skikda, Hamadi Krouma, Hamrouche Hamoudi and Larbi Ben M＇Hidi.

关键词： Bio-diversity bio-indication lichenic flora pollution Algeria.

Distributed Adaptive Time-Varying Formation Tracking for Linear Multi-Agent Systems:A Dynamic Output Approach

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Distributed Adaptive Time-Varying Formation Tracking for Lin...

Early Hyperglycemia in Diabetics as a Predictor of Disease Severity in COVID-19

第36届中国控制会议

作者： Wei Jiang Guoguang Wen Yunhe Meng ahmed Rahmani CRIStAL UMR CNRS 9189Ecole Centrale de Lille Department of Mathematics Beijing Jiaotong University National University of Defense Technology

ISBN: (纸本)9781538629185

In this paper,fully distributed time-varying formation tracking problem for general linear time-invariant（LTI） multiagent systems is investigated by using an adaptive-based *** communication topology is a spanning tree in which a leader’s output is available to only a subset of the agents（followers） among which the communication is *** followers can form a time-varying formation that is specified by predefined time-varying vectors and at the same time track the leader’s trajectory that is also time-varying.A new class of fully distributed observer-type protocol based on each follower’s relative output measurements of neighboring agents is proposed,which does not need the absolute or relative state information that is required in some observer-type *** with the existing works,one main contribution of this paper is that the proposed protocol is fully distributed which requires no global information of communication topology and is based on output ***,a simulation is provided to verify the effectiveness of the theoretical results.

关键词： Multi-agent systems Formation tracking Adaptive control Distributed control Observer-type protocol

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International Journal of Clinical Medicine 2021年第12期12卷 543-550页

作者： Niaz ahmed Shaikh Arshee Khan Asnin Shah Rubina Inamdar Rania Abosalama Rafeh Jamal Dubai Health Authority Rashid Hospital Dubai UAE

Background: Hyperglycemia is an important predictor of prolonged hospitalization and mortality. The objective of this study was to analyze the role of early hyperglycemia in predicting the severity of COVID-19 illness and mortality. Method: Retrospective study on 259 patients with COVID-19 with measurement of average glucose during 24 hours of admission. Association of Early Hyperglycemia categorized as 180 mg/dl;was studied with mortality, requirement of ICU stay and prognostic markers. Results: Early hyperglycemia (>180 mg/dl) revealed a higher median value for CRP (109 mg/l [IQR;48 - 199]) in comparison to 180 mg/dl group;24 (15.9%) vs 14 patients (13%) [p = 0.51] in the 180 mg/dl was 8 (5.3%) while Conclusion: Hyperglycemia in the first 24 hours may anticipate an increased risk of ICU stay and a higher mortality rate. It may be a possible predictor of disease severity.

关键词： Admission Hyperglycemia COVID-19 Diabetes Disease Severity

Physiological Races of Fusarium oxysporum f. sp. Ciceris in Iraq

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Journal of Life Sciences 2013年第10期7卷 1070-1075页

作者： Ali Kareem Al-Taae Hamid All Hadwan Saleh ahmed Eesa AI-Jobory Plant Protection Department College of Agric. &Forestry Mosul University Mosul 41002 Iraq Plant Protection Office Ministty of Agriculture Baghdad Iraq

Twenty isolates of Fusarium oxysporum f. sp. ciceris were isolated from wilted chickpea plants obtained from different districts of north part of Iraq to assess variability in pathogenicity of the populations. Each isolate was tested on 12 differential chickpea varieties. Isolates showed highly significant variation in wilt severity on the differential varieties. Based on the reaction types that induced on differential varieties, isolates were grouped into four groups, First group included isolates FocSl, FocQ7, FocQ 10, FocFI3, FocH 17 and FocHl8; the second group included isolates FocS2, FocS3, FocS4, FocQ5, FocQ8, FocQ9, FocF11, FocF12, FocFl4 and FocH19; the third group included isolates FocF15, FocHl6, FocH20; where the isolate FocQ6 was placed in the fourth group. Results showed that the percentage of genetic similarity was ranged 42% to 100% and was 42% between the first group and other groups and 72% between the three groups the rest and thus this indicate the presence of four races of the fungus which are O, 4, 5 and 1B/C, this represent the first record of these races in lraq.

关键词： Chickpea wilt Cicer arietinum Fusarium oxysporum f. sp. ciceris pathogenic variability.