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Thriving green havens in baking deserts:Plant diversity and species composition of urban plantations in the Sahara Desert

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Journal of Arid Land 2024年第9期16卷 1270-1287页

作者： mohammed SOUDDI haroun CHENCHOUNI M'hammed BOUALLALA Laboratory of Saharan Natural Resources Faculty of Nature and Life SciencesUniversity of Ahmed Draia-AdrarAdrar 01000Algeria Laboratory of Algerian Forests and Climate Change Higher National School of ForestsKhenchela 40000Algeria Laboratory of Natural Resources and Management of Sensitive Environments University of Oum El BouaghiOum El Bouaghi 04000Algeria Higher School of Saharan Agriculture Adrar 01000Algeria

Hot arid zones represent vital reservoirs of unique species and ecosystems,holding significant importance for *** study aimed to explore the plant diversity associated with tree plantations in urban ecosystems under hyper-arid climatic conditions in the Sahara Desert of *** May 2022,30 quadrats measuring 1 m^(2) each were established at the base of Phoenix dactylifera,Leucaena leucocephala,and Tamarix aphylla,corresponding to the dominant tree species in each of three *** each quadrat,the plant quantitative inventory was conducted to measure plant diversity and similarity among the studied *** on this,we assessed the plant functional traits and rarity/abundance status of the *** findings revealed a diverse flora associated with the studied plantations,comprising 29 plant species grouped into 27 genera and 12 ***,Poaceae(accounting for 30.8% of the flora),Asteraceae(25.0%),and Zygophyllaceae(21.6%)were *** an overall density of approximately 555 individuals/m^(2),Zygophyllum album(120 individuals/m^(2))and Polypogon monspeliensis(87 individuals/m^(2))emerged as the most abundant *** trait analysis underscored the pivotal role of therophytes(constituting over 50.0% of the flora)and anemochorous species(33.0%-62.5%).Phytogeographic analysis emphasized the prevalence of the Saharo-Arabic element(constituting over 31.0% of the flora)and the Mediterranean Saharo-Arabic element(9.5%-21.5%).The Cosmopolitan element thrived under disturbance factors,recording percentages from 13.0% to 20.0% of the plant *** rarity/abundance status of the flora emphasized the significance of rare,common,and very common species in the studied *** findings could provide fundamental data for the effective control and management of biodiversity in hot hyper-arid urban ecosystems.

关键词： urban plantations plant diversity plant functional traits rarity/abundance status Sahara Desert Algeria

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The First Report on Sero-Prevalence of Toxoplasma gondii in Working Horses and Donkeys in the Sudan

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Journal of Life Sciences 2013年第12期7卷 1284-1287页

作者： Shadia Mohamed Ahmed Abdalla Mohamed Ibrahim Nabaa Kamal Alshafie rabab haroun mohammed Ahmed Ali Ismail Tamador Elkhansa Elnour Angara College of Veterinary Medicine University of Bahri Khartoum 11111 Sudan College of Veterinary Medicine Sudan University of Science and Technology (SUST) Khartoum 11111 Sudan College of Science and Technology of Animal Production Sudan University of Science and Technology (SUST) Khartoum 11111Sudan

A serological survey of Toxoplasma gondii was conducted using LAT （Latex Agglutination Test） on 205 sera collected from working horses and donkeys in Khartoum State, Sudan. The overall sero-prevalence of the investigated equines was 32.7%. Antibodies to T. gondii were found in 38% of 100 horses and 27.6% of 105 donkeys. The titers were 1：2 （4 heads）, 1：4 （11 heads）, 1：8 （13 heads）, 1：16 （17 heads）, 1：32 （5 heads）, 1：64 （10 donkeys） and 1：128 （7 donkeys）. Neither the area nor animal species showed significant differences between the investigated groups. However, age was reported to show significant （P 〈 0.05） effect on equine toxoplasmosis in the Sudan. This is the first report on equine toxoplasmosis in the Sudan.

关键词： Toxoplasma gondii equines sero-prevalence latex agglutination test Sudan.

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Dunbar Syndrome and Hypoxic Hepatitis: An Unusual Presentation

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Open Journal of Gastroenterology 2024年第6期14卷 226-232页

作者： Hajar Cherkaoui Ismail Chaouech Yousra El Abidi haroun Robleh Asmae Lamine Maria Lahlali Nada Lahmidani Amine Mekkaoui Mounia Elyousfi Dafr Allah Benajah Adil Ibrahimi mohammed El Abkari Nizar Bouardi mohammed Maaroufi Hakima Abid Department of Gastroenterology University Hospital Hassan II Fez Morocco Faculty of Medicine and Pharmacy Fez Morocco Department of Radiology University Hospital Hassan II Fez Morocco

Hypoxic hepatitis, also known as ischemic hepatitis, is characterized by acute hepatocellular injury due to inadequate oxygen delivery to the liver. Celiac trunk stenosis can lead to hepatic ischemia and subsequent liver damage. We present the case of an 81-year-old patient with a history of hypertension, ischemic heart disease, hypothyroidism, and biliary lithiasis, who developed hypoxic hepatitis secondary to Dunbar syndrome and a stenosis of the superior mesenteric artery. The patient improved symptoms and liver function tests with conservative management, including intravenous fluids and supportive care. Long-term management involved continued antiplatelet therapy and statins, with consideration of further interventions for celiac trunk stenosis. This case underscores the importance of recognizing Dunbar syndrome as well as superior mesentery trunk stenosis as a potential cause of hypoxic hepatitis. It highlights the need for multidisciplinary management in such cases.

关键词： Dunbar Syndrome Hypoxic Hepatitis Stenosis of Mesentery Artery

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Association of anxiety- depressive disorders with irritable bowel syndrome among patients attending a rural family practice center: a comparative cross- sectional study

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General Psychiatry 2021年第6期34卷 16-23页

作者： Alaa Adel mohammed Heba Ahmed Moustafa Hebatallah Nour-Eldein rabab Atta Saudi Family Medicine Department Suez Canal UniversityIsmailiaEgypt

Background Comorbidity of irritable bowel syndrome(IBS)and psychiatric disorders is common,and the prevalence of at least one psychiatric disorder has been reported as high as 80%among patients with *** To explore the association of anxiety-depressive disorders with IBS and its different subtypes,and to evaluate the associations of lifestyle habits,dietary habits and sleeping quality with *** A comparative cross-sectional study was conducted at the AL-Mahsama Family Practice Center,Ismailia,*** was carried out between October 2019 and October *** were categorised into 175 patients with IBS,diagnosed using the Rome IV criteria,and 175 patients without IBS.A semistructured questionnaire was used to collect data on sociodemographic characteristics,lifestyle habits,dietary habits and sleep quality from both *** Hamilton Anxiety Rating Scale was used to assess anxiety symptoms,whereas the Beck Depression Inventory Second Edition was used to assess depression *** There was a high statistically significant difference between both groups with regard to age,education,occupation and socioeconomic status(SES),being a smoker,being physically inactive,having sleep disturbance and having irregular meals;being either obese or overweight was more reported in the IBS *** was a high statistically significant difference in the rate of anxiety and depression between patients with and without ***,moderate and severe anxiety were reported in 37.1%,42.9%and 20.0%of patients with IBS while most(80.0%)of the patients without IBS reported mild *** depression,mild,moderate and severe depression were reported in 60.0%,14.3%and 25.7%of the patients with IBS while most(82.9%)of the non-IBS participants reported mild *** The study shows a significant association between anxiety-depressive disorders and IBS,but no significant associations between anxiety-depressive disorders and IBS subtypes.

关键词： patients disorders sectional

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Estimation and Assessment of Plasma D-Dimer Levels in HIV Patients

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Journal of Biosciences and Medicines 2016年第10期4卷 1-5页

作者： Wafa Hamid haroun Himmat Nasr Eldeen Ali mohammed Gaufri Faculty of Medical Laboratory Sciences Al Neelain University Khartoum Sudan

Background: The elevation of plasma D-dimer levels is fully described and associated with the increase of the mortality of patients with HIV. The present study was aimed to estimate and assess the plasma D-dimer levels in HIV patient. Material and Methods: A case control study done in May 2015. A total of 100 subjects were enrolled in this study;50 were patients professionally diagnosed by HIV;25 (50%) were males and 25 (50%) were females;their mean age is 35 years. Further 50 normal healthy individuals as normal control group: their gender and age were matched with patient groups. The platelets poor plasma (PPP) was immediately prepared from citrated blood, then the plasma D-dimer level was measured using (MISPA-i2 Reagent) Switzerland. Data were analyzed using statistical packing for social sciences program (SPSS) 20. Results: The D-dimer levels was significantly higher in patient with HIV compared with the normal healthy control group (Mean and STD 502.2 ± 287.8 vs 251.8 ± 152.7 P. value 0.01). Conclusion: The D-dimer level was significantly higher in patient with HIV compared with those in normal healthy control group.

关键词： HIV AIDS D-Dimer Sudan

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Occurrence of Extended Spectrum Beta Lactamase Encoding Genes among Urinary Pathogenic <i>Escherichia coli</i>and <i>Klebsiella pneumoniae</i>Isolates Obtained from a Tertiary Hospital in Gombe Nigeria

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Journal of Biosciences and Medicines 2020年第9期8卷 42-55页

作者： Adamu Yarima Ali Ahmed haroun Timothy Bulus mohammed M. Manga Department of Plant Science Bioresource Development Center Michika National Biotechnology Development Agency Abuja Nigeria Department of Biological Sciences Nigerian Defence Academy Kaduna Nigeria Department of Biochemistry Kaduna State University Kaduna Nigeria Department of Medical Microbiology and Immunology Gombe State University and Federal Teaching Hospital Gombe Gombe Nigeria

This study was conducted to assess the occurrence and nature of extended-spectrum beta lactamase (ESBL) producing Escherichia coli and Klebsiella pneumoniae isolates from patients who presented with urinary tract infection at Federal Teaching Hospital Gombe. Isolates collected were recovered on MacConkey agar at 35°C and were identified as members of Enterobacteriaceae, and further screened for antimicrobial susceptibility and resistance by disc diffusion method. Isolates resistant to oxyimino-cephalosporins were confirmed as ESBL producers using Double Disks Synergy Test (DDST). The study shows 66% resistance to ceftriaxone (30 μg) in K. pneumoniae, which was the highest value recorded and a 51% resistance to cefpodoxime (10 μg) in E. coli. The sensitivity of E. coli and K. pneumoniae isolates to cefpodoxime (10 μg) were 49% and 33.9% respectively. ESBLs were detected among 40% (40/100) of E. coli and 54.13% (59/109) of K. pneumoniae isolates. Molecular characterization of ESBL encoding genes among E. coli isolates using multiplex-PCR showed 10% prevalence of SHV gene and 5% prevalence for CTX-M gene while TEM gene was not detected. In K. pneumoniae isolates, 5% prevalence was recorded for each of the three genes screened. The study revealed a co-occurrence of SHV and CTX-M in 75% of the E. coli and 70% of the K. pneumoniae isolates;the occurrence of all the three genes was seen in 10% and 5% of K. pneumoniae and E. coli respectively. Multiplex-PCR method provided an efficient and rapid detection of ESBL related genes, hence could be used in epidemiological studies among ESBL isolates. Monitoring dissemination and transmissions of ESBL producers are highly recommended for optimum patient care and preventing the spread of multidrug resistant (MDR) pathogens.

关键词： ESBL Double Disk Synergy Test M-PCR TEM SHV CTX-M Genes Nigeria

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Hepatic and gastrointestinal disturbances in Egyptian patients infected with coronavirus disease 2019: A multicentre cohort study

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World Journal of Gastroenterology 2021年第40期27卷 6951-6966页

作者： Hend Ibrahim Shousha Shimaa Afify rabab Maher Noha Asem Eman Fouad Ehab F Mostafa mohammed A Medhat Amr Abdalazeem Hazem Elmorsy Miriam M Aziz Rateba S mohammed Mohamed Ibrahem Hassan Elgarem Dalia Omran Mohamed Hassany Bassem Elsayed Ahmed Y Abdelaziz Mohamed El Kassas Endemic Medicine Faculty of MedicineCairo UniversityCairo 11562Egypt Gastroenterology Department National Hepatology&Tropical Medicine Research InstituteCairo 11563Egypt Hepatology Department Students HospitalCairo UniversityGiza 12566Egypt The Public Health Department Faculty of MedicineCairo UniversityCairo 11562Egypt Egyptian Ministry of Health and PopulationCairo 11567Egypt Department of Tropical Medicine and Gastroenterology Faculty of MedicineAssiut UniversityAssiut 15655Egypt Endemic Medicine Department Faculty of MedicineHelwan UniversityCairo 13544Egypt Internal Medicine 15 Mayo Smart HospitalMinistry of Health and PopulationCairo 13488Egypt Pediatrics Department Faculty of MedicineCairo UniversityCairo 11562Egypt Occupational and Environmental Medicine Department Faculty of MedicineCairo UniversityCairo 11562Egypt Clinical Biochemistry Department Faculty of medicineCairo UniversityCairo 11562Egypt Endemic Medicine Department Faculty of MedicineCairo UniversityCairo 11562Egypt Urology Department Cairo UniversityCairo 11562Egypt

BACKGROUND Various liver and gastrointestinal involvements occur in patients with coronavirus disease 2019(COVID-19)at variable *** studies report mild liver function disturbances correlated with COVID-19 severity,though liver failure is *** To study liver and gastrointestinal dysfunctions in Egyptian patients with COVID-19 and their relation to disease outcomes METHODS This multicentre cohort study was conducted on 547 Egyptian patients from April 15,2020 to July 29,*** polymerase chain reaction-confirmed COVID-19 cases were included from four quarantine hospitals affiliated to the Egyptian ministry of *** information,laboratory characteristics,treatments,fibrosis-4(FIB-4)index,COVID-19 severity,and outcomes were recorded and compared according to the degree of liver enzyme elevation and the presence of gastrointestinal ***-ups were conducted until discharge or *** analyses were performed to determine the independent factors affecting *** This study included 547 patients,of whom 53(9.68%)died during hospitalization and 1 was discharged upon his ***’mean age was 45.04±17.61 years,and 21.98%had severe or critical *** aminotransferase(ALT)and aspartate aminotransferase(AST)were available for 430 and 428 patients,*** total,26%and 32%of patients had elevated ALT and AST,*** liver injury with ALT or AST elevation exceeding 3-fold was recorded in 21(4.91%)and 16(3.73%)patients,*** gender,smoking,hypertension,chronic hepatitis C,and lung involvement were associated with elevated AST or *** was elevated in 50%of patients over ***-4 was significantly higher in patients admitted to the intensive care unit(ICU),those with more severe COVID-19,and *** independent variables affecting outcome were supplementary vitamin C intake(1 g daily capsules)[odds ratio(OR):0.05,95%confidence interval(CI

关键词： COVID-19 Egypt Liver injury Gastrointestinal symptoms Fibrosis-4 Liver enzymes

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The Expression of miRNAs in Sudanese Patients with Systemic Lupus Erythematosus in Khartoum State

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Open Journal of Rheumatology and Autoimmune Diseases 2022年第4期12卷 128-136页

作者： Sarah mohammed Dafalla Ahmed Elhadi Elsadig Tarig A. M. Hamid Huda Mohamed haroun Sana Eltahir Abdalla Department of Haematology Medical Laboratory Sciences Program Alyarmouk College Khartoum Sudan Department of Haematology Faculty of Medical Laboratory Sciences Alzaiem Al Azhari University Khartoum Sudan Department of Haematology and Immunohematology Sharq El Nile College Khartoum North Sudan Department of Haematology Faculty of Medical Laboratory Sciences University of Gezira Madani Sudan Department of Pathology Faculty of Medicine Al Neelain University Khartoum Sudan

Background: MicroRNAs (miRs) are noncoding gene regulators that may have a role as diagnostic or prognostic biomarkers in systemic lupus erythematosus (SLE). Aim: To measure the blood levels of miR-146a, miR-126 and miR-30a in Sudanese SLE patients and to investigate their potential role in disease pathogenesis and utility as biomarkers for SLE. Material and Methods: A total of 48 SLE patients and 20 matched healthy individuals were enrolled in this study. SLE disease activity index (SLEDAI) was assessed. The blood levels of miR-146a, miR-126 and miR-30a were determined by Real-time polymerase chain reaction (PCR) in all participants. Γ-INF and IL-2 were analyzed by ELISA, and CD markers were used in flow cytometry. Results: The mean age of the patients was 31.5 ± 8.5 years with disease duration > 5 years. In SLE patients, the mean blood level fold changes of miR-146a (0.33 ± 0.277;P 0.305) compared to controls. Down regulation of miR-146a increase expression of γ-INF (P 0.05) as no differences between the SLE patients and healthy control. Conclusion: Circulating miR-146a and miR-126 could be a potential noninvasive biomarker in SLE. This study provides an overview of the current state of research on the role of miRNAs in the immune pathogenesis and regulation of SLE. Further studies are needed in miRNAs profiling expressions of SLE diseases.

关键词： Systemic Lupus Erythematosus (SLE) MicroRNAs

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Amyloid Goiter: Clinicopathological Assessment of Two Cases and Review of Literature

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Open Journal of Pathology 2015年第1期5卷 20-27页

作者： rabab Ahmed Ahmed mohammed Etemad Helmy Yassin Moustafa EzEldien M. Radwan Badawy mohammed Ahmed Lobna F. Ettouny Alaa M. Abozied Department of Pathology Faculty of Medicine Taibah University Medina KSA Department of Pathology Faculty of Medicine Assiut University Assiut Egypt Department of Radiodiagnosis Faculty of Medicine Taibah University Medina KSA Department of Radiodiagnosis Assiut University Hospitals Assiut Egypt Department of Surgical Oncology South Egypt Cancer Institute Assiut Egypt Department of Internal Medicine Assiut University Hospitals Assiut Egypt

Amyloid goiter (AG) is a rare but well-established disease entity that may occur in a number of conditions. In the following article, we will report two cases of AG. Both patients were young males: 28 & 24 years old, presented with rapidly enlarging thyroid gland manifested with pressure effects (dyspnea and hoarseness of voice). Provisional clinical diagnosis was malignant thyroid neoplasm. One of the patients was markedly hypothyroid while the other was euthyroid. Histopathological evaluation revealed extracellular deposition of deep pink homogenous material that was confirmed as amyloid with congo red. Patient in case 1 was primary localized AG while patient in case 2 was systemic amyloidosis secondary to interstitial pulmonary fibrosis (IPF) that was first manifested by AG. The main aims of the article were to describe histopathological features of amyloidosis of the thyroid gland and to raise awareness of AG to be included in the differential diagnosis in patients presented with rapidly enlarging goiter with mass effects.

关键词： Amyloidosis Amyloid Goiter Thyroid Gland

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A Comparative Kinetic Study on the Efficacious Permanganate Oxidation of Fluorenes in Perchloric and Sulfuric Acid Media

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Open Journal of Physical Chemistry 2017年第2期7卷 35-49页

作者： rabab S. Jassas Ahmed Fawzy Rami J. Obied mohammed A. S. Abourehab Saleh A. Ahmed Chemistry Department Faculty of Applied Science Umm Al-Qura University Makkah Saudi Arabia Chemistry Department Faculty of Science Assiut University Assiut Egypt Department of Pharmaceutics Faculty of Pharmacy Umm Al-Qura University Makkah Saudi Arabia Department of Pharmaceutics and Industrial Pharmacy Faculty of Pharmacy Minia University Minia Egypt

Oxidation kinetics of fluorene (Fl) and its halogenated derivatives, namely, 2,7-dichlorofluorene (Fl-Cl), 2,7-dibromofluorene (Fl-Br) and 2,7-diiodofluorene (Fl-I), by permanganate ion in both perchloric and sulfuric acid media have been investigated using conventional spectrophotometric technique. In both acidic media, the reactions manifested first order kineticsin [permanganate] and less than unit order each in [reductants] and [acid]. Increasing ionic strength had no effect on the oxidation rates. Oxidation rates of fluorenes in perchloric acid were higher than those in sulfuric acid and the order of the oxidation rates was: Fl > Fl-I > Fl-Br > Fl-Cl. Final oxidation products were identified by GC/MS and FT-IR analyses in all cases as 9H-fluorenone derivatives. Reaction constants as well as activation parameters of the second order rate constants were also evaluated.

关键词： Oxidation Kinetics Mechanism Fluorenes Permanganate

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