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Spinal Cord Lipomas In Children: Surgical Resection And Outcome, Ramy Omar Omar El Sakhry, Hatem Ibrahim Badr, Ibrahim El Sayd Ahmed Abdel-Aal, Amr Farid Khalil

Mansoura Medical Journal

Background: management of spinal lipomas is considered a challenging task for pediatric neurosurgeons. Study Design: A prospective, clinical study. Objectives: To assess the neurological outcomes after surgical resection of spinal lipomas. Patients and methods: The study was performed on 30 patients, underwent surgical resection of spinal cord lipomas. The cases were followed up post-operatively in the outpatient clinic for at least 24 months. Results; This study included 30 patients with spinal lipomas (12 boys and 18 girls) with age of less than two years at surgery. At presentation, all the 30 cases had low back swelling.19 (63.3%) with bladder dysfunction, …

Potential Neuroprotective Effect Of Artemisinin In A Rotenone-Induced Mice Model Of Parkinson’S Disease, Nada M. Hamada, Hanan Eissa, Nirmeen Megahed, Mohamed H. Daba, Ahlam Elmasry

Mansoura Medical Journal

Background: Parkinson’s disease (PD) is characterized by motor dysfunctions including tremors, rigidity and bradykinesia. Medications for PD alleviate motor symptoms rather than targeting disease pathogenesis. Recently discovered features of artemisinin suggested that it might be used to treat neurodegenerative diseases. Objective: to explore the possible neuroprotective effect of artemisinin in different doses in a rotenone-induced model of PD. Materials & methods: Twenty-five mice were randomly divided into five groups: group 1; negative-control, group 2; positive-control, and groups 3&4&5: artemisinin-treated (30, 40 and 50 mg/kg) respectively. For PD induction, rotenone (3mg/Kg/day) was administered intraperitoneally for 42 days (6 weeks). Behavioral assessment …

The Prognostic Value Of Androgen Receptor And Cyclin D1 In Infiltrating Duct Carcinoma Of The Breast, Dina A Abd El-Ghaffar, Amal Af Halim, Eman A Abdallah, Doaa A Sharaf, Shaimaa M Yussif

Mansoura Medical Journal

Objective: Breast cancer (BC) tissue is heterogeneous with a number of cellular pathways involved in cell growth and proliferation. Activation of androgen receptors (AR) signaling pathways plays a role in BC. On the other hand, cyclin is a regulatory subunit of cyclin dependent kinases that affect cell cycle G1/S transition. This study aimed at investigating the relationship between the expression of AR and cyclin D1 and the clinicopathological details of BC patients registered in the archive of our department within a specified period and determining the prognostic impact of such expression.

Methods: The study included 182 IDC patients aged from …

The Effect Of Hepatitis C Virus Infection On Ovarian Reserve, Khaled Mahmoud Ahmed Amin Abdo, Mahmoud Mohamed Abdelrazik, Eman Salah Eldin Mohamed Fadel, Ashraf Ahmed Foda, Mohamed Abd Ellatif Elnegeri

Mansoura Medical Journal

Background: Hepatitis C has the highest frequency in Egypt, with 14.7 percent of the population affected between the ages of 15 and 49, according to the World Health Organization. Hepatitis C virus antibodies have been detected in 12.2% of women and 17.4% of men. Patients and Methods: This research was carried out in Mansoura University Hospital, Mansoura, Egypt. All participants (90 cases) in this study provided written informed consent to participate and were separated into 2 groups, the first group (group A) & the second group (group B). Women in group A (45 cases) were hepatitis C virus antibodies tested …

Outcome Of Covid-19 In Patients With Rheumatic Diseases Treated With Immunosuppressive Drugs, Ali Sobh, Noha Hazem Elnagdy, Mohamed Elegezy, Mohamed Mofreh, Mohamed Tohlob, Ahmad M. Eita, Ragheed Rizk, Ola Eliwa, Marwa H. Elnagdy, Ahmed Elsaeed Abdulgalil

Mansoura Medical Journal

Background: Rheumatologic disorders have been significantly impacted by the coronavirus disease 2019 (COVID-19) pandemic. The potential role of immunosuppressive drugs in the presentation, severity and even management of COVID-19 is still questionable. The aim of this work was to study the effect of immunosuppressive drugs on outcome of COVID-19 infection in patients with rheumatic diseases. 109 rheumatic patients (37 pediatrics and 72 adults) taking immunosuppressive treatment with confirmed COVID-19 infection were included in this study. Clinical, laboratory, radiological findings and outcome of these patients were retrospectively retrieved from hospital medical records. Results: The majority of adult cases were rheumatoid arthritis …

Total Serum Immunoglobulin E In Patients With Psoriasis Vulgaris, Sara A. Gooda

Mansoura Medical Journal

Introduction Psoriasis vulgaris (PV) is a multifactorial disease in which some environmental factors acting on people who have a particular genetic predisposition trigger immune dysregulation and irregular keratinization, inducing typical cutaneous lesions. Serum IgE levels are low in normal subjects, on the other hand they increase in atopy, parasitic infestation, and particular forms of malignant tumours. The aim of this study was to assess serum levels of total IgE in cases with PV. Methods This research was a case-control study and comprised 40 psoriasis cases and matched age and sex 40 healthy subjects. Complete general and dermatological examination comprised a …

Unusual Late Presentation Of Kartagener Syndrome: A Case Report, Abdulhadi H. Al-Mazroea

Mansoura Medical Journal

Kartagener's syndrome (KS) is a rare inherited autosomal recessive condition. It comprises of the triad chronic sinusitis, bronchiectasis, and situs inversus. The symptoms are more prevalent in children in the early years of life. We describe a case of a 15-year-old child showing severe respiratory distress with a history of intermittent wet cough and rhinitis for the past six months. The patient was diagnosed with dextrocardia at birth and had no significant medical history since then. Based on his clinical presentation and imaging findings, he was diagnosed with KS that was confirmed by whole-exome sequencing. The patient was managed with …

Ultrasound Of Fetal Long Bone Ossification Centers As A Predictor Of Fetal Lung Maturity In Pregnant Ladies Scheduled For Elective Cesarean Section, Hala Mohammed Abu Zeid, Mohammed Tawfik Sayed, Abdelhady Zayed, Alhussein Ahmed Mohamed

Mansoura Medical Journal

ABSTRACT Background: In handling of pregnancy with elevated risk, fetal lung maturity (FLM) prediction is crucial. Long bone epiphyseal ossification centers (OCs) are considered to be a helpful predictor of (FLM), moreover, they can precisely identified and assessed easily. Aim: This research is trying to find out whether there is an association between OCs identification and FLM. Methods: This prospective study was carried out at the Mansoura University Hospital outpatient obstetric clinic. The Obstetrics and Gynaecology division at Mansoura University Hospitals recruited 100 full-term pregnant women. The major OCs were detected via ultrasound (US) as egg-shaped echo-rich zones. They were …

Assessment Of Serum Lipoprotein Phospholipase A2 As An Atherosclerotic Risk Factor In Ischemic Stroke Elderly Patients, Amr Ragab Yousef Ismael, Ahmed Saied, Ahmed Mohamed Elewa, Mohamed Said Gomaa

Mansoura Medical Journal

Background Significant evidence does exist regarding the significant role of inflammation in the development of atherosclerosis. Lipoprotein phospholipase A2 is a phospholipase A2 enzyme (Lp-PLA2) which is predominantly produced by macrophages and lymphocytes in atherosclerotic plaque. Increased Lp-PLA2 concentrations are significantly linked to atherosclerosis-related diseases which include cardiovascular diseases and ischaemic strokes. Aim This study was conducted to assess the role of serum level of Lp-PLA2 in cerebral atherosclerosis. Methods This prospective cross-sectional case-control study enrolled 100 patients aged 60 years old or more with acute ischaemic stroke (AIS). Using the TOAST classification, patients were divided into case group "atherosclerotic” …

Evaluation Of Platelet Indices And Low-Density Lipoprotein (Ldl) As Predictors Of Acute Ischemic Stroke Severity And Outcome, Ahmed E. Al-Sharabi, Ashraf A. El-Mitwalli, Yousra M. Tera, Hossam M. Egila

Mansoura Medical Journal

Background: Platelets play a role in atherosclerosis, inflammation, and thrombosis. Prothrombotic events, activation, aggregation, and adhesion are all increased by elevated mean platelet volume (MPV) and platelet distribution width (PDW) levels; high low-density lipoprotein (LDL) raises the risk of cardiovascular disease. Aims: Investigate the association between platelet indices, lipid profile, stroke severity, and outcome in patients with acute ischemic stroke. ‎ Subjects and methods: A prospective case-control study involved 100 acute ischemic stroke patients and 100 controls from Mansoura University Hospitals. Patients underwent neurological assessments, including the National Institutes of Health Stroke Scale (NIHSS), modified Rankin Scale (mRS), and Alberta …

Assessment Of Monocyte To High Density Lipoprotein Ratio And Ischemia-Modified Albumin In Acne Vulgaris Patients, Nermin Mamdouh Salem, Soheir Abdelgaber Eltoukhy, Mohammed Mohammed El Sayed El Arman, Sherief Refaat Ismail

Mansoura Medical Journal

Background: Acne vulgaris (AV) is a common, chronic, inflammatory lesion of the pilosebaceous unit. Oxidative stress played an essential role with regard to pathogenesis of many dermatological conditions. Aim: The aim of the present study is to assess Complete blood count (CBC) parameters and monocyte to high -density lipoprotein ratio (MHR) as indicator of inflammation, assess Ischaemia-modified albumin (IMA) as indicator of oxidative stress in acne vulgaris patients and to examine their relation to acne vulgaris severity. Methods: This was a case-control study included 48 acne vulgaris patients and 40 healthy individuals age and sex-matched controls. Global acne grading scale …

Effectiveness Of Allergen Immunotherapy In Cigarette Smokers With Allergic Airway Disorders, Heba Wagih Abdelwahab, Mostafa Bakeer, Ahmed Mohamed Fouda

Mansoura Medical Journal

Background: Exposure to environmental tobacco smoke (ETS) is associated with several medical diseases especially allergy, but little is known about the effects of cigarette smoking on allergen immunotherapy response. Aim: This study aims to explore any association between cigarette smoking and response to allergen immunotherapy in patients with allergic airway disorders. Patients and methods: The study was conducted on patients with allergic airway disorders who received subcutaneous immunotherapy. All patients were assessed as regard smoking history including pack-year index and dependence, symptoms and medication scores. Patients’ demographic and clinical data were collected. A statistical analysis was then performed. Results: A …

Evaluation Of Congenital Coronary Arteries Anomalies On Cardiac Computed Tomography Angiography (Cta) For Congenital Heart Diseases, Zainab A. Ramadan

Mansoura Medical Journal

Background and purpose: Coronary arteries anomalies (CAA) are generally rare but more common to co-exist with congenital cardiac anomalies. These include several congenital conditions either origin, course, or termination. This study aims to emphasize that the accurate evaluation of CAA on cardiac computed tomography angiography (CTA) is a must prior to proper surgical intervention in congenital heart diseases (CHD) to prevent unnecessary procedures or vascular injury of these vital arteries. Methods: Cardiac CTA scans for patients with suspected cardiac anomalies or diseases were retrospectively reviewed by radiologist for the presence of CAA between February 2020 and March 2023. CAA were …

Don’T Miss What Is Hidden On Cardiac Ct Angiography: Extra-Cardiac Findings Count, Zainab Ahmad Ramadan, Aya Ahmed Elboghdady, Aya Mohammed Abdel Aziz, Farah Ahmed Shokeir

Mansoura Medical Journal

Background: Multi-detector computed tomography (MDCT)is the main imaging modality in cardiovascular diseases. Another important role of MDCT is assessment of extra-cardiac structures outside the pericardium. These extra-cardiac findings may be of great relevance. Methods: Cardiac MDCT scan results were retrospectively reviewed by radiologist for the presence of extra-cardiac findings between February 2020 and December 2022. They were categorized according to anatomical location into systems as pulmonary, pleural, mediastinal, bronchial, vascular, bony, abdominal and miscellaneous. Results: A total of 955 patients had a cardiac multidetector CT angiography scan during the study period. Extra-cardiac findings were reported in 320 (33.5%) of these …

Ephedrine Versus Norepinephrine Infusion For Prevention Of Haemodynamic Instability After Declamping Of The Aorta In Abdominal Aortic Aneurysm Repair, Mohamed Younes Yousef Abd Allah, Maha Younes Youssef Abd-Allah, Mohamed E. Elshehawi, Ka Awad

Mansoura Medical Journal

Background: During general anesthesia, hypotension is often experienced and is linked to both postoperative morbidity and death. Anesthesiologists have long had a hurdle while performing abdominal aortic aneurysm (AAA) repair, a high-risk treatment that increases vulnerability to hemodynamic disturbances during open surgery. A common vasopressor that is a combined α- and β-agonist, ephedrine is used to treat hypotension in general anesthesia. Conversely, norepinephrine has a favorable chronotropic impact on the heart in addition to acting as an agonist for both α and ß receptors. Aim of the work: Examine the differences in the effects of intravenous ephedrine hydrochloride and noradrenaline …

Serum Trefoil Factor 3 As A Diagnostic Marker Of Hepatocellular Carcinoma Related To Chronic Hepatitis C Cirrhosis, Mohammed El Hagrasy, Ashraf Omar, Hosam Abdel Twab, Ahmed Saed

Mansoura Medical Journal

Background: Liver cancer, specifically Hepatocellular Carcinoma (HCC), is a main cause of cancer-related deaths globally. Early detection of HCC is also a significant challenge. Our research aimed to examine serum trefoil factor 3 (TFF3) level compared to alpha-fetoprotein (AFP) in diagnosis and prognosis of HCC and other hepatitis C virus (HCV)-related liver diseases. Methods: This single-center prospective study was performed at a Specialized Medical Hospital, Faculty of Medicine, Mansoura University, over a duration of 6 months from May to October 2021. The study consisted of 35 cases with HCC on top of cirrhosis, 35 with HCV-induced cirrhosis, and 20 healthy …

Molecular Organic Photovoltaic Cells And Applications, Julie Liu

Theses and Dissertations

The absorption, light scattering, and anti-Stoke’s fluorescence of chlorophyll and closely related sodium copper chlorophyllin were examined in various solutions with a wide range of refractive index and permittivity. It was evident that radiative photo electron decay corresponded to low permittivity solvents, but not to solvent refractive index. Additionally, non-radiative decay was dominant in high permittivity solvents. The properties suggest evolution has provided plants with an ability to redirect light to the chlorophyll in the high permittivity (water) photosynthesis center. Exploratory solar cells exploiting lifetime switching were developed and tested, wherein strong photovoltaic response was exhibited, along with the unique …

Cover And Contents

Turkish Journal of Mathematics

No abstract provided.

Geodesics And Natural Complex Magnetic Trajectories On Tangent Bundles, Mohamed Tahar Kadaoui Abbassi, Noura Amri

Turkish Journal of Mathematics

In this paper, we investigate geodesics of the tangent bundle $TM$ of a Riemannian manifold $(M,g)$ endowed with an arbitrary pseudo-Riemannian $g$-natural metric of Kaluza-Klein type. Then considering a class of naturally defined almost complex structures on $TM$, constructed by V. Oproiu, we construct a class of magnetic fields and we characterize the corresponding magnetic curves on $TM$, when $(M,g)$ is a space form.

Novel Fano Type Lower Bounds On The Minimum Error Probability Of List $M$-Ary Hypothesis Testing, Berkan Dülek

Turkish Journal of Mathematics

he problem of list $M$-ary hypothesis testing with fixed list size $L< M$ is considered. Based on some random observation, the test outputs a list of $L$ candidates out of $M$ possible hypotheses. The probability of list error is defined as the probability of the event that the list output by the test does not contain the true hypothesis that has generated the observation. An identity is derived that relates the minimum average probability of error of the optimal list hypothesis test to the minimum average probability of error of an optimal maximum a posteriori probability decision rule. The latter decides among an alternative set of hypotheses corresponding to all possible $L$-component mixtures of the distributions that characterize the observation under the original $M$ candidate hypotheses. As an application, the proposed identity is employed to obtain novel Fano type lower bounds on the minimum error probability of list $M$-ary hypothesis testing.

Boundedness Of Bergman Projections Acting On Weighted Mixed Norm Spaces, Ivana Savkovic

Turkish Journal of Mathematics

We prove that Bergman projections on weighted mixed norm spaces on smoothly bounded domains in $\mathbb{R}^n$ are bounded for a certain range of parameters of such spaces and assuming certain conditions on weights. The proof relies on estimates of integral means of $M_p(P_\gamma f, r)$ in terms of integral means of $f$. This result complements earlier result on boundedness of $P_\gamma$ on a closely related space $L^{p,q}_\alpha(\Omega).$

Clairaut Riemannian Maps, Kiran Meena, Akhilesh Yadav

Turkish Journal of Mathematics

In this paper, first we define Clairaut Riemannian map between Riemannian manifolds by using a geodesic curve on the base space and find necessary and sufficient conditions for a Riemannian map to be Clairaut with a nontrivial example. We also obtain necessary and sufficient condition for a Clairaut Riemannian map to be harmonic. Thereafter, we study Clairaut Riemannian map from Riemannian manifold to Ricci soliton with a nontrivial example. We obtain scalar curvatures of $rangeF_\ast$ and $(rangeF_\ast)^\bot$ by using Ricci soliton. Further, we obtain necessary conditions for the leaves of $rangeF_\ast$ to be almost Ricci soliton and Einstein. We also …

Locally Product-Like Statistical Submersions, Kazuhi̇ko Takano, Esra Erkan, Mehmet Gülbahar

Turkish Journal of Mathematics

In this paper, the main identities on locally product-like statistical submersions are obtained with the aid of statistical structures and their Riemannian curvature tensors. Some examples of locally product-like statistical submersions are presented. Some results on $F$-invariant, $F^{\ast}$-invariant and antiinvariant locally product-like statistical submersions are given.

On Generalized Darboux Frame Of A Spacelike Curve Lying On A Lightlike Surface In Minkowski Space $\Mathbb{E}^{3}_{1}$, Jelena Djordjevic, Emilija Nesovic, Ufuk Öztürk

Turkish Journal of Mathematics

In this paper we introduce generalized Darboux frame of a spacelike curve $\alpha$ lying on a lightlike surface in Minkowski space $\mathbb{E}_{1}^{3}$. We prove that $\alpha$ has two such frames and obtain generalized Darboux frame's equations. We find the relations between the curvature functions $k_g$, $k_n$, $\tau_g$ of $\alpha$ with respect to its Darboux frame and the curvature functions $\tilde{k}_{g}$, $\tilde{k}_{n}$, $\tilde{\tau}_{g}$ with respect to generalized Darboux frames. We show that such frames exist along a spacelike straight line lying on a ruled surface which is not entirely lightlike, but contains some lightlike points. We define lightlike ruled surfaces on …

Unipotence In Positive Characteristic For Groups Of Finite Morley Rank, Jules Gael Tindzogho Ntsiri

Turkish Journal of Mathematics

In this article we define a new form of unipotence in groups of finite Morley rank which extends Burdges unipotence to any characteristic. In particular, we show that every connected solvable group of finite Morley rank $G$ has a definable connected subgroup $H$ whose derived subgroup $H'$ is a good unipotent subgroup of finite Morley rank.

Effect Of Fractional Analysis On Some Special Curves, Aykut Has, Beyhan Yilmaz

Turkish Journal of Mathematics

In this study, the effect of fractional derivatives, whose application area is increasing day by day, on curves is investigated. As it is known, there are not many studies on a geometric interpretation of fractional calculus. When examining the effect of fractional analysis on a curve, the Caputo fractional analysis that fits the algebraic structure of differential geometry is used. This is because the Caputo fractional derivative of the constant function is zero. This is an important advantage and allows a variety of fractional physical problems to be based on a geometric basis. This effect is examined with the help …

Boundary Value Problem For A Loaded Fractional Diffusion Equation, Arsen V. Pskhu, Murat I. Ramazanov, Minzilya Kosmakova

Turkish Journal of Mathematics

In this paper we consider a boundary value problem for a loaded fractional diffusion equation. The loaded term has the form of the Riemann-Liouville fractional derivative or integral. The BVP is considered in the open right upper quadrant. The problem is reduced to an integral equation that, in some cases, belongs to the pseudo-Volterra type, and its solvability depends on the order of differentiation in the loaded term and the behavior of the support line of the load in a neighborhood of the origin. All these cases are considered. In particular, we establish sufficient conditions for the unique solvability of …

Data-Driven Reachability Analysis For Gaussian Process State Space Models, Paul Griffioen, Murat Arcak

Faculty Work Comprehensive List

Gaussian process state space models are becoming common tools for the analysis and design of nonlinear systems with uncertain dynamics. When designing control policies for these systems, safety is an important property to consider. In this paper, we provide safety guarantees by computing finite-horizon forward reachable sets for Gaussian process state space models. We use data-driven reachability analysis to provide exact probability measures for state trajectories of arbitrary length, even when no data samples are available. We investigate two numerical examples to demonstrate the power of this approach, such as providing highly non-convex reachable sets and detecting holes in the …

Risk And Protection Of Different Rare Protein-Coding Variants Of Complement Component C4a In Age-Related Macular Degeneration, Johanna M Seddon, Dikha De, William Casazza, Shun-Yun Cheng, Claudio Punzo, Mark Daly, Danlei Zhou, Samantha L Coss, John P Atkinson, Chack-Yung Yu

2020-Current year OA Pubs

No abstract provided.

Impact Of Successful Recanalization And Clinical Outcomes Of Patients With Acute Ichemic Stroke With 5 Or More Thrombectomy Passes, Kazutaka Uchida, Joshua Osbun, Et Al.

2020-Current year OA Pubs

No abstract provided.