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https://www.readbyqxmd.com/read/28820277/natural-phospholipids-occurrence-biosynthesis-separation-identification-and-beneficial-health-aspects
#1
Abdelmoneim H Ali, Xiaoqiang Zou, Sherif M Abed, Sameh A Korma, Qingzhe Jin, Xingguo Wang
During the last years, phospholipids (PLs) have attracted great attention because of their crucial roles in providing nutritional values, technological and medical applications. There are considerable proofs that PLs have unique nutritional benefits on human health, such as reducing cholesterol absorption, improving liver functions, and decreasing the risk of cardiovascular diseases. PLs are the main structural lipid components of cell and organelle membranes in all living organisms, and therefore, they occur in all organisms and the derived food products...
August 18, 2017: Critical Reviews in Food Science and Nutrition
https://www.readbyqxmd.com/read/28792718/mdr-1-and-cyp3a5-polymorphisms-in-pediatric-idiopathic-nephrotic-syndrome-impact-on-susceptibility-and-response-to-steroids-preliminary-results
#2
Amira Moussa, Sameh Mabrouk, Haithem Hamdouni, Maroua Ajmi, Miniar Tfifha, Asma Omezzine, Saoussen Abroug, Ali Bouslama
BACKGROUND: Oral steroid treatment is the first line of therapy for childhood nephrotic syndrome (NS). However, resistance to this treatment has been observed in some patients. Here, we investigated the association of two steroid metabolism-related genes with susceptibility to childhood NS and the steroid response. METHODS: We genotyped the single nucleotide polymorphisms (SNP) of MDR-1 [C1236T (rs1128503), G2677T/A (rs2032582), and C3435T (rs1045642)] and the CYP3A5 gene (A6986G) in 63 NS patients and 110 age and gender matched controls by PCR-RFLP...
July 1, 2017: Clinical Laboratory
https://www.readbyqxmd.com/read/28791907/a-one-step-procedure-for-immobilising-the-thermostable-carbonic-anhydrase-sspca-on-the-surface-membrane-of-escherichia-coli
#3
Sonia Del Prete, Rosa Perfetto, Mosè Rossi, Fatmah A S Alasmary, Sameh M Osman, Zeid AlOthman, Claudiu T Supuran, Clemente Capasso
The carbonic anhydrase superfamily (CA, EC 4.2.1.1) of metalloenzymes is present in all three domains of life (Eubacteria, Archaea, and Eukarya), being an interesting example of convergent/divergent evolution, with its seven families (α-, β-, γ-, δ-, ζ-, η-, and θ-CAs) described so far. CAs catalyse the simple, but physiologically crucial reaction of carbon dioxide hydration to bicarbonate and protons. Recently, our groups characterised the α-CA from the thermophilic bacterium, Sulfurihydrogenibium yellowstonense finding a very high catalytic activity for the CO2 hydration reaction (kcat = 9...
December 2017: Journal of Enzyme Inhibition and Medicinal Chemistry
https://www.readbyqxmd.com/read/28777800/vision-retention-in-early-versus-delayed-glaucoma-surgical-intervention-in-patients-with-boston-keratoprosthesis-type-1
#4
Mark Lin, Anand Bhatt, Asghar Haider, Grace Kim, Marjan Farid, Mason Schmutz, Sameh Mosaed
IMPORTANCE: The loss of vision following Boston Keratoprosthesis (BKPro) surgery due to glaucoma occurs at a high frequency as diagnosis and management of glaucoma after this procedure pose challenges. OBJECTIVE: To compare visual outcomes in patients undergoing Boston Keratoprosthesis surgery with and without prior or concurrent glaucoma surgery. DESIGN, SETTING, AND PARTICIPANTS: This is a retrospective, observational cohort study of patients who underwent Boston Type I Keratoprosthesis surgery...
2017: PloS One
https://www.readbyqxmd.com/read/28777032/suicidal-ideation-in-an-egyptian-sample-of-hospitalized-patients-with-acute-psychosis
#5
Maha Ftouh, El-Sayed Gad, Mohammad A Seleem, Sameh Saada, Ahmed A Mubarak
BACKGROUND: Suicide mortality is 12 times higher in psychotic patients compared to the general population. Identifying characteristic of suicidal patients among this group might help in preventing such behavior. AIMS: To assess the predictors of suicidal risk in patients hospitalized due to acute psychosis. METHODS: One hundred and fifty patients (age 18 - 60 years) admitted with acute psychotic features were recruited. Patients were evaluated clinically by The Arabic version of Mini International Neuropsychiatric Interview (M...
August 4, 2017: Clinical Schizophrenia & related Psychoses
https://www.readbyqxmd.com/read/28775247/spinal-abscess-caused-by-salmonella-bacteremia-in-a-patient-with-primary-myelofibrosis
#6
Shehab Fareed, Abdulqadir J Nashwan, Sulieman Abu Jarir, Ahmed Husain, Dina Sameh Suliman, Friyal Ibrahim, Abbas Moustafa, Muhammad S Akhter, Mohamed A Yassin
BACKGROUND In Primary Myelofibrosis (PMF; a clonal disorder arising from the neoplastic transformation of early hematopoietic stem cells) patients, spinal cord compression (SCC) is a common complication or even a presentation symptom due to extramedullary hematopoiesis (EMH). However, a case of SCC caused by a spinal abscess is unusual. To the best of our knowledge, this is the first case report of this rare condition. CASE REPORT We are reporting the case of a 50-year-old male with primary myelofibrosis and long-standing splenomegaly with back pain as a presenting symptom who was found to have spinal cord compression...
August 4, 2017: American Journal of Case Reports
https://www.readbyqxmd.com/read/28766952/inhibition-of-the-%C3%AE-carbonic-anhydrase-from-the-dandruff-producing-fungus-malassezia-globosa-with-monothiocarbamates
#7
Alessio Nocentini, Daniela Vullo, Sonia Del Prete, Sameh M Osman, Fatmah A S Alasmary, Zeid AlOthman, Clemente Capasso, Fabrizio Carta, Paola Gratteri, Claudiu T Supuran
A series of monothiocarbamates (MTCs) was investigated for the inhibition of the β-class carbonic anhydrase (CAs, EC 4.2.1.1) from the fungal parasite Malassezia globosa, MgCA. These MTCs incorporate various scaffolds, among which aliphatic amine with 1-4 carbons atom in their molecule, morpholine, piperazine, as well as phenethylamine and benzylamine derivatives. All the reported MTCs displayed a better efficacy in inhibiting MgCA compared to the clinically used sulphonamide drug acetazolamide (KI of 74 μM), with KIs spanning between 1...
December 2017: Journal of Enzyme Inhibition and Medicinal Chemistry
https://www.readbyqxmd.com/read/28766040/the-diabetic-brain-and-cognition
#8
REVIEW
Peter Riederer, Amos D Korczyn, Sameh S Ali, Ovidiu Bajenaru, Mun Seong Choi, Michael Chopp, Vesna Dermanovic-Dobrota, Edna Grünblatt, Kurt A Jellinger, Mohammad Amjad Kamal, Warda Kamal, Jerzy Leszek, Tanja Maria Sheldrick-Michel, Gohar Mushtaq, Bernard Meglic, Rachel Natovich, Zvezdan Pirtosek, Martin Rakusa, Melita Salkovic-Petrisic, Reinhold Schmidt, Angelika Schmitt, G Ramachandra Sridhar, László Vécsei, Zyta Beata Wojszel, Hakan Yaman, Zheng G Zhang, Tali Cukierman-Yaffe
The prevalence of both Alzheimer's disease (AD) and vascular dementia (VaD) is increasing with the aging of the population. Studies from the last several years have shown that people with diabetes have an increased risk for dementia and cognitive impairment. Therefore, the authors of this consensus review tried to elaborate on the role of diabetes, especially diabetes type 2 (T2DM) in both AD and VaD. Based on the clinical and experimental work of scientists from 18 countries participating in the International Congress on Vascular Disorders and on literature search using PUBMED, it can be concluded that T2DM is a risk factor for both, AD and VaD, based on a pathology of glucose utilization...
August 1, 2017: Journal of Neural Transmission
https://www.readbyqxmd.com/read/28763101/relevant-genetic-polymorphisms-and-kidney-expression-of-tlr5-and-tlr9-in-lupus-nephritis
#9
Nesrine Elloumi, Raouia Fakhfakh, Olfa Abida, Lobna Ayadi, Sameh Marzouk, Hend Hachicha, Mohamed Fourati, Zouhir Bahloul, Mohamed Nabil Mhiri, Khawla Kammoun, Hatem Masmoudi
Toll-like receptor (TLR) genetic polymorphisms may modify their expression causing inflammatory disorders and influencing both susceptibility and severity of lupus erythematosus. We aim to determine whether TLR5 and TLR9 genes polymorphisms are implicated in the susceptibility to systemic lupus erythematosus (SLE) and lupus nephritis (LN) and to evaluate their expressions and distributions in renal LN patients' biopsies. The frequencies of 2 SNP in TLR9 gene and 1 in TLR5 gene was examined in 106 SLE patients (among them 37 LN patients) and in 200 matched controls by PCR-RFLP analysis...
August 1, 2017: Clinical and Experimental Immunology
https://www.readbyqxmd.com/read/28755962/are-the-cavernous-tissue-and-serum-levels-of-mirnas-200-a-and-206-elevated-in-patients-with-refractory-veno-occlusive-erectile-dysfunction-a-comparative-study
#10
Sameh Fayek GamalEl Din, Laila Ahmed Rashed, Hany Ahmed Alghobary, Lamiaa Tarek Tawfik, Mohammed Said ElSheemy
OBJECTIVES: to evaluate the association between miRNAs and veno-occlusive erectile dysfunction. Recently, this association between miRNAs and erectile dysfunction was extensively studied using animal models. Our aim was to explore the miRNAs expressions and functions in the development of erectile dysfunction, especially veno-occlusive dysfunction using a human tissue. PATIENTS AND METHODS: we prospectively recruited 60 patients with erectile dysfunction and controls between July 2015 and July 2016...
July 26, 2017: Urology
https://www.readbyqxmd.com/read/28754318/anion-inhibitors-of-the-%C3%AE-carbonic-anhydrase-from-the-pathogenic-bacterium-responsible-of-tularemia-francisella-tularensis
#11
Sonia Del Prete, Daniela Vullo, Sameh M Osman, Zeid AlOthman, William A Donald, Jean-Yves Winum, Claudiu T Supuran, Clemente Capasso
A β-class carbonic anhydrase (CA, EC 4.2.1.1) from the pathogenic bacterium Francisella tularensis (FtuβCA) was cloned and purified, and the anion inhibition profile was investigated. Based on the measured kinetic parameters for the enzyme catalyzed CO2 hydration reaction (kcat of 9.8×10(5)s(-1) and a kcat/KM of 8.9×10(7)M(-1)s(-1)), FtuβCA is a highly effective enzyme. The activity of FtuβCA was not inhibited by a range of anions that do not typically coordinate Zn(II) effectively, including perchlorate, tetrafluoroborate, and hexafluorophosphate...
July 17, 2017: Bioorganic & Medicinal Chemistry
https://www.readbyqxmd.com/read/28754221/-even-a-cholecystitis-can-surprise-you
#12
Lifeng Gu, Emilie Comeau, Sameh Geha
No abstract text is available yet for this article.
July 25, 2017: Annales de Pathologie
https://www.readbyqxmd.com/read/28748302/effect-of-combination-of-fractional-co2-laser-and-narrow-band-ultraviolet-b-versus-narrow-band-ultraviolet-b-in-the-treatment-of-non-segmental-vitiligo
#13
Mohamed Bakr El-Zawahry, Naglaa Sameh Zaki, Marian Youssry Wissa, Marwah Adly Saleh
The present study was designed to evaluate the effect of combining fractional CO2 laser with narrow-band ultraviolet B (NB-UVB) versus NB-UVB in the treatment of non-segmental vitiligo. The study included 20 patients with non-segmental stable vitiligo. They were divided into two groups. Group I received a single session of fractional CO2 laser therapy on the right side of the body followed by NB-UVB phototherapy twice per week for 8 weeks. Group II received a second session of fractional CO2 laser therapy after 4 weeks from starting treatment with NB-UVB...
July 26, 2017: Lasers in Medical Science
https://www.readbyqxmd.com/read/28741386/cloning-expression-and-purification-of-the-%C3%AE-carbonic-anhydrase-from-the-mantle-of-the-mediterranean-mussel-mytilus-galloprovincialis
#14
Rosa Perfetto, Sonia Del Prete, Daniela Vullo, Vincenzo Carginale, Giovanni Sansone, Carmela M A Barone, Mosè Rossi, Fatmah A S Alasmary, Sameh M Osman, Zeid AlOthman, Claudiu T Supuran, Clemente Capasso
We cloned, expressed, purified, and determined the kinetic constants of the recombinant α-carbonic anhydrase (rec-MgaCA) identified in the mantle tissue of the bivalve Mediterranean mussel, Mytilus galloprovincialis. In metazoans, the α-CA family is largely represented and plays a pivotal role in the deposition of calcium carbonate biominerals. Our results demonstrated that rec-MgaCA was a monomer with an apparent molecular weight of about 32 kDa. Moreover, the determined kinetic parameters for the CO2 hydration reaction were kcat =  4...
December 2017: Journal of Enzyme Inhibition and Medicinal Chemistry
https://www.readbyqxmd.com/read/28737361/-sex-education-in-tunisia-students%C3%A2-%C3%A2-expectations-and-teachers%C3%A2-conceptions
#15
Sameh Hrairi
Health education, as defined by the World Health Organization (WHO 1983), includes sex education. In Tunisia, there is a growing interest in sexuality issues, in contrast with the reigning conservative culture, challenging the taboos and restrictions imposed by religion. A global sex education strategy is therefore required in Tunisian in schools to help students understand their body and its biological functions, construct a real sexual identity and adopt behaviours that promote a healthy and low-risk lifestyle...
July 10, 2017: Santé Publique: Revue Multidisciplinaire Pour la Recherche et L'action
https://www.readbyqxmd.com/read/28731936/case-series-keratolimbal-allograft-as-a-patch-graft-for-glaucoma-drainage-devices
#16
Sarah F Ahmed, Mason Schmutz, Sameh Mosaed
PURPOSE: Tube exposure remains one of the most common complications after glaucoma drainage device (GDD) implantation, despite various types of patch grafts available today. We present a 4 patient case series following the effectivity of the keratolimbal allograft (KLAL) as a patch graft for cases of tube exposure. Given its inherent population of stem cells, our hypothesis was that this highly replicative, biological tissue would provide an adequate means of glaucoma tube coverage. The subset of patients chosen for the KLAL patch graft all had a history of abnormally scarred conjunctiva or thin sclera...
July 20, 2017: Journal of Glaucoma
https://www.readbyqxmd.com/read/28729881/outcomes-following-repair-of-incarcerated-and-strangulated-ventral-hernias-with-or-without-synthetic-mesh
#17
Sameh Hany Emile, Hesham Elgendy, Ahmad Sakr, Waleed Ahmed Gado, Ahmed Aly Abdelmawla, Mahmoud Abdelnaby, Alaa Magdy
BACKGROUND: The use of synthetic mesh for ventral hernia repair under contaminated conditions is a controversial issue due to the considerable risk of surgical site infection (SSI). This study aimed to review the outcomes of repair of incarcerated and strangulated ventral hernias with or without synthetic mesh in compliance with established clinical guidelines regarding the incidence of SSI and hernia recurrence. METHODS: The records of patients with complicated ventral hernias who were treated with or without synthetic mesh repair were reviewed...
2017: World Journal of Emergency Surgery: WJES
https://www.readbyqxmd.com/read/28728907/sequential-extended-thoracoscopic-sympathicotomy-for-palmo-axillo-plantar-hyperhidrosis
#18
Khaled Elalfy, Sameh Emile, Hossam Elfeki, Ahmed Elmetwally, Mohamed Farag, Waleed Gado
BACKGROUND: Palmo-axillo-plantar hyperhidrosis (HH) exists in approximately 70% to 100% of patients complaining of HH. Many studies have documented variable effects of thoracoscopic sympathicotomy (TS) on plantar sweating. The present trial evaluated sequential extended thoracoscopic sympathicotomy for the treatment of palmo-axillo-plantar HH regarding its feasibility and outcome on each domain of HH, particularly the plantar domain METHODS: Forty-two patients with severe palmo-axillo-plantar HH underwent sequential extended (T3 to T12) thoracoscopic sympathicotomy...
July 17, 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28708815/incidence-of-posterior-vitreous-detachment-after-femtosecond-lasik-compared-with-microkeratome-lasik
#19
Moataz Hamed Osman, Noha Mahmoud Khalil, Mohamed-Sameh El-Agha
PURPOSE: To compare the incidence of posterior vitreous detachment (PVD) after femtosecond and microkeratome laser in situ keratomileusis (LASIK). SETTING: Rowad Correction Centre, Cairo, Egypt (a private center affiliated to Cairo University). DESIGN: Prospective, nonrandomized comparative unmasked study. METHODS: The study was conducted at a single laser center. Eligible patients chose between femtosecond and microkeratome LASIK after appropriate counseling...
September 2017: Cornea
https://www.readbyqxmd.com/read/28708136/differential-requirements-for-tousled-like-kinases-1-and-2-in-mammalian-development
#20
Sandra Segura-Bayona, Philip A Knobel, Helena González-Burón, Sameh A Youssef, Aida Peña-Blanco, Étienne Coyaud, Teresa López-Rovira, Katrin Rein, Lluís Palenzuela, Julien Colombelli, Stephen Forrow, Brian Raught, Anja Groth, Alain de Bruin, Travis H Stracker
The regulation of chromatin structure is critical for a wide range of essential cellular processes. The Tousled-like kinases, TLK1 and TLK2, regulate ASF1, a histone H3/H4 chaperone, and likely other substrates, and their activity has been implicated in transcription, DNA replication, DNA repair, RNA interference, cell cycle progression, viral latency, chromosome segregation and mitosis. However, little is known about the functions of TLK activity in vivo or the relative functions of the highly similar TLK1 and TLK2 in any cell type...
July 14, 2017: Cell Death and Differentiation
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