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SARS-COV-2 Infection and Anti-Tuberculosis Immunity: Temporal Association or Real Protective Role?

Advances in Infectious Diseases 2022年第4期12卷 656-667页

作者： Sanaa Hammi Myriem Bourkia Adil Najdi Rajae Chahboune Karima Rissoul Jamal Eddine Bourkadi Jouda Benamor Fatema el Bouzouiki Soumiya el Bachiri mohammed Moumkin Rachid Ismaili Nadira Mourabait Ouafae Kaissi Asmae Zerrouki Adil Grourinda Fadila Bousgheiri Hassana Belafki Mhamed Harif Mohamed Ahalat Faculty of Medicine and Pharmacy of Tangier FMPT Abd Elmalek Essadi University (AEU) Tangier Morocco Faculty of Medicine and Pharmacy of Rabat Mouhamed V University Rabat Morocco Faculty of Science and Technology of Al Hoceima Abd Elmalek Essadi University (AEU) Tangier Morocco Faculty of Science and Technology of Tangier Abd Elmalek Essadi University (AEU) Tangier Morocco

Introduction: According to the literature consulted to date, there is epidemiological heterogeneity of Covid-19 between countries depending on their vaccination policy, in particular BCG vaccination. These findings have led to several hypotheses, including the protective role of immunity induced by the BCG tuberculosis vaccine against Covid-19 infection. The immunity induced by the BCG vaccine significantly increases the secretion of pro-inflammatory cytokines, in particular IL-1B, which has been shown to play an essential role in antiviral immunity. This cross-immunity, although not specific, if highlighted, is a real providence that must be taken advantage of in the face of this pandemic. The main objective of this study is to rule out or confirm that anti-tuberculosis immunity protects against SARS-COV-2 in our context. Material and Methods: Two groups will be compared: cases infected with the virus and controls who have never been infected with the virus. Both case and control groups will undergo a tuberculin skin test: the intra dermal tuberculin reaction (IDR). Results: We found that our control group had a high IDR immunity value, with an IDR tuberculin positive percentage of 67.2%. This suggests that immunity to IDR is a protective factor against coronavirus disease. Conclusion: The hypothesis of nonspecific anti-tuberculosis protection deserves further verification studies;it would have large positive repercussions for developing countries.

关键词： BCG Nonspecific Anti-Tuberculosis Immunity Covid-19

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Dependence of Pumpkin Yield on Plant Density and Variety

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American Journal of Plant Sciences（美国植物学期刊） 2011年第5期

作者： Khalid el-Sayed abd el-Hamed mohammed Wasfy mohammed elwan

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Prevalence and Associated Factors of Back Pain among Medical Students in Sudan

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Health 2022年第9期14卷 931-938页

作者： Shahda Shms eldeen Khlf Alla Ahmed Ragda Kabashy mohammed Bahar Lana Alsiddig Mohamed Ahmed Aisha Ali elameen Abbas Eiman Siddig abd elhadi Ahmed Ruba Jabir abdallah Seedahmed Shahd Yousif Hajomer abdelgader Arwa Ahmed Alhussain Ahmed Khalid elfadil Ibrahim Husein Faculty of Medicine Omdurman Islamic University Omdurman Sudan Department of Orthopaedics and Traumatology Omdurman Islamic University Omdurman Sudan

Background: Back pain affects old and young adults, and it is a common complain among medical students. Objective: To estimate the prevalence of back pain and associated factors among medical students in Sudan. Method: An observational multi-universal cross-sectional study was conducted from December 2021 to February 2022, involving 433 medical students selected by simple random sampling. Data were collected by electronic Google Form questionnaire designed to assess demographic features, back pain characteristics, and triggering factors. Data analysis was done by statistical package for social sciences. Result: The prevalence of back pain among medical students in Sudan is 69.3%, with a statistically insignificant difference between preclinical and clinical students (p value: 0.378), and between male and female students (p value: 0.826). The lower back is the commonest site of pain (75%). The majority of the students experience moderate pain (53.9%). They did not use medications (81%). Sitting for long hours is the most common trigger (87.9%) and the pain did not interfere with the daily activities (71%). Conclusion: Back pain is a common complain among medical students in Sudan. Medical schools should raise the awareness of the students about back pain.

关键词： Back Pain Medical Students Medical School Sudan

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Specifically Binding of L-ficolin to N-glycans of HCV Envelope Glycoproteins E1 and E2 Leads to Complement Activation

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Cellular & Molecular Immunology 2009年第4期6卷 235-244页

作者： Jun Liu mohammed A.M. Ali Yinghua Shi Yinglan Zhao Fenglin Luo Jin Yu Tian Xiang Jie Tang Dongqing Li Quan Hu Wenzhe Ho Xiaolian Zhang The State Key Laboratory of Virology Department of Immunology and Hubei Province Key Laboratory of Allergy and Immune-related Diseases Wuhan University School of Medicine Wuhan 430071 China Center for Disease Control and Prevention of Wuhan Wuhan 430071 China Division of Allergy-Immunology the Children＇s Hospital of Philadelphia Department of Pediatrics University of Pennsylvania School of Medicine Philadelphia PA USA Central Hospital of Enshi Prefecture Hubei 445000 China These two authors contribute equally to this work as first authors Department of Immunology Wuhan University School of Medicine 165 Donghu Road Wuhan 430071 China

L-ficolin, one of lectin families, is a recently identified complement factor that initiates lectin pathway of complement. Little is known about its role in viral hepatitis. In the present study, we found that L-ficolin in serum from 103 patients with hepatitis C virus （HCV）, were significantly higher than that in 150 healthy controls. We further found that L-ficolin expressions were significantly increased in vitro study by HCV JFH-1 infected human hepatocyte cell line Huh7.5.1. Investigation of the mechanisms of the L-ficolin action on HCV demonstrated that L-ficolin protein could recognize and bind to envelope glycoproteins E1 and E2 of HCV, activating the lectin complement pathway-mediated cytolytic activity in HCV-infected hepatocyte. This interaction between L-ficolin and HCV E1 and E2 glycoproteins was attributed to the N-glycans of E1 and E2. These findings provide new insights into the biological functions of L-ficolin in clinically important hepatic viral diseases.

关键词： L-ficolin hepatitis C virus envelope glycoproteins complement viral hepatitis

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Cyber Security Awareness among Students and Faculty Members in a Sudanese College

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electrical Science & Engineering 2020年第2期2卷 24-28页

作者： mohammed Daffalla elradi Altigani abd alraheem Altigani Osman Idriss Abaker Communication Systems Engineering Department University of Science and TechnologyKhartoumSudan

In the last few years,cyber security has been an essential prerequisite for almost every organization to handle the massive number of emerging cyber attacks worldwide.A critical factor in reducing the possibility of being exploited is cyber security *** only having the adequate knowledge but how to utilize this knowledge to prevent cyber *** this paper we conducted a survey that focuses on three vital security parameters,which are trust,passwords and defensive attitude *** survey mainly aimed at assessing cyber security knowledge of 200 students and 100 faculty members in a Sudanese college and how secure these participants think they are according to their current cyber behaviour.56%of the participants are males and 44%are *** results revealed that all participants were having fairly-low level of security awareness and their defensive attitude is considerably weak and doesn’t protect them either individually or at ***,faculty member showed better cyber security knowledge and skills by 8%higher than *** study can be used to develop training approaches that bridge the security gaps depicted by the respondents of the survey questions manipulated in this study.

关键词： Cyber security Awareness Passwords Students Faculty members

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Bronchotomy as a Safe and Feasible Alternative to Failed Bronchoscopic Removal of Foreign Body Inhalation in Pediatrics. A Seven-Year Review

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Open Journal of Thoracic Surgery（胸外科期刊） 2021年第2期

作者： Montaser abd elaziz mohammed eltaweel Mohamed elsayed mohammed el-Hag-Aly

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Simulation of Plasma Density Gradient Generation by Wakefield and the Effect of Probe Pulse Time-Delay on the Photon Acceleration

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Open Journal of Applied Sciences（应用科学） 2021年第3期

作者： Marwa mohammed abd elwahab Haron abd elfatah elshaikh Ossama mohammed Yassin

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Needleless Contasure versus TVT-O in Women with Stress Urinary Incontinence

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Open Journal of Obstetrics and Gynecology（妇产科期刊） 2020年第8期

作者： abd el-Moneim abd el-Aziz Saleh Mahmoud Ahmed Ghareb Diab Alsayed Mohamed Ibrahiem Walid Mohamed elnagar mohammed Hassan elsayed Barakat1

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Evaluation of Reticulocyte Hemoglobin Content and Serum Neutrophil Gelatinase-Associated Lipocalin as Predictive Biomarkers of Anemia in Children on Hemodialysis

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Open Journal of Nephrology（肾脏病） 2021年第4期

作者： Heba Ahmed Donia Manal abdel el-Salam Gehad Nabil mohammed Doaa Aly abd elfattah

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The Palestinian Terrestrial Vertebrate Fauna Preserved at the Biology Exhibitions of the Universities of the Gaza Strip

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Research in Ecology 2020年第4期2卷 9-21页

作者： abdel Fattah N abd Rabou Nour J Musallam Eman J Musallam Kamal E elkahlout Kamal J elnabris Tarek A el-Bashiti Ismail I abdel Aziz Reham M Ishneiwra Eqbal S Radwan Hana S Saada Ashraf A Shafei Nedal A Fayyad Saleh N Mwafy Huda E Abu Amra Ramy A Abu Alajeen mohammed F Abu Owda Randa N Alfarra Haifaa A Hassouna Reem A Hassouna mohammed R Al-Agha mohammed A abd Rabou Department of Biology and Biotechnology Islamic University of GazaGaza StripPalestine Department of English Islamic University of GazaGaza StripPalestine Department of Biology Al-Azhar UniversityGaza StripPalestine Department of Biology Al-Aqsa UniversityGaza StripPalestine Department of Geography Al-Aqsa UniversityGaza StripPalestine Department of Curricula and Teaching Methods Islamic University of GazaGaza StripPalestine Department of Curricula and Teaching Methods Ministry of EducationGaza StripPalestine Department of Pharmaceutical Sciences University of PalestineGaza StripPalestine Department of Environment and Earth Sciences Islamic University of GazaGaza StripPalestine Department of Information Technology University College of Applied SciencesGaza StripPalestine

The Gaza Strip(365 km^(2))of Palestine(27,000 km^(2))is home to a wealth of terrestrial vertebrate *** of these faunistic species find their ways to preservation at the local ***,the current study comes to document the Palestinian terrestrial vertebrate fauna acquired by the biology exhibitions(BEs)of Al-Azhar University,Islamic University of Gaza and Al-Aqsa University that are located at the Gaza City of the Gaza *** amphibians,reptiles,birds and mammals preserved at BEs of the universities in question were surveyed and scientifically classified during a three-month period extending from January to March,*** study showed that all BEs of local universities are underdeveloped,lacking attention and suffer from specimen scarcity and good *** BE at Al-Azhar University is the best in the arrangement and preservation of bird specimens.A total number of 200 specimens belonging to 54 terrestrial vertebrate fauna species,39 families and 17 orders was recorded at *** constituted 40.7%of the total species recorded,followed by birds(38.9%),mammals(14.8%)and amphibians(5.6%).The Islamic University of Gaza was considered the best in terms of the number of preserved species(39.8%),followed by Al-Azhar University(36.3%)and Al-Aqsa University(23.9%).The Common Toad(Bufo viridis)was the most preserved among the amphibian species *** was the biggest reptilian order,comprising 20 species(8 lizards and 12 snakes),with the Syrian Black Snake(Coluber jugularis asianus)was the *** Palestine Viper(Vipera palaestinae)is endemic to Palestine and most venomous and dangerous to human *** Great White Pelican(Pelecanus onocrotalus)was the largest Palestinian bird preserved at BE of Al-Azhar *** Egyptian Mongoose(Herpestes ichneumon)and the Common Badger(Meles meles)were the biggest mammalian specimens preserved,while the Palestine Mole-rat(Spalax leucodon ehrenbergi)was the only Palestine endemic spe

关键词： Terrestrial vertebrate fauna Preservation Biology exhibitions Gaza universities Gaza Strip Palestine

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