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https://www.readbyqxmd.com/read/27908539/design-synthesis-molecular-docking-anti-proteus-mirabilis-and-urease-inhibition-of-new-fluoroquinolone-carboxylic-acid-derivatives
#1
Mohammed A A Abdullah, Gamal El-Din A A Abuo-Rahma, El-Shimaa M N Abdelhafez, Heba A Hassan, Rehab M Abd El-Baky
New hydroxamic acid, hydrazide and amide derivatives of ciprofloxacin in addition to their analogues of levofloxacin were prepared and identified by different spectroscopic techniques. Some of the prepared compounds revealed good activity against the urease splitting bacteria, Proteus mirabilis. The urease inhibitory activity was investigated using indophenol method. Most of the tested compounds showed better activity than the reference acetohydroxamic acid (AHA). The ciprofloxacin hydrazide derivative 3a and levofloxacin hydroxamic acid 7 experienced the highest activity (IC50=1...
November 9, 2016: Bioorganic Chemistry
https://www.readbyqxmd.com/read/27856304/a-heterozygous-dominant-negative-mutation-in-the-coiled-coil-domain-of-stat1-is-the-cause-of-autosomal-dominant-mendelian-susceptibility-to-mycobacterial-diseases
#2
Masahiro Ueki, Masafumi Yamada, Kenta Ito, Yusuke Tozawa, Saeko Morino, Yuho Horikoshi, Hidetoshi Takada, Shimaa Said Mohamed Ali Abdrabou, Shunichiro Takezaki, Ichiro Kobayashi, Tadashi Ariga
Heterozygous dominant-negative mutations of STAT1 are responsible for autosomal-dominant Mendelian susceptibility to mycobacterial diseases (AD-MSMD). So far, only 7 mutations have been previously described and are localized to 3 domains: the DNA-binding domain, the SH2 domain, and the tail segment. In this study, we demonstrated the first coiled-coil domain (CCD) mutation of c.749G>C, p.G250A (G250A) in STAT1 as a genetic cause of AD-MSMD in a patient with mycobacterial multiple osteomyelitis. This de novo heterozygous mutation was shown to have a dominant-negative effect on the gamma-activated sequence (GAS) transcriptional activity following IFN-γ stimulation, which could be attributable to the abolished phosphorylation of STAT1 from the wild-type (WT) allele...
November 14, 2016: Clinical Immunology: the Official Journal of the Clinical Immunology Society
https://www.readbyqxmd.com/read/27829623/facile-preparation-of-photoactivatable-surfaces-with-tuned-substrate-adhesiveness
#3
Yoshihisa Shimizu, Masao Kamimura, Shota Yamamoto, Shimaa A Abdellatef, Kazuo Yamaguchi, Jun Nakanishi
This paper describes a facile method for the preparation of photoactivatable substrates with tuned surface density of an extracellular matrix peptide to resolve the impacts of biochemical and mechanical cues on collective cell migration. The controllability of surface ligand density was validated by cell adhesion and migration tests, complemented with fluorescence observation of an alternative ligand. Depending on the surface ligand density, HeLa cells either kept or lost collective characteristics. The present materials will be useful to address mechanobiology of collective cell migration...
2016: Analytical Sciences: the International Journal of the Japan Society for Analytical Chemistry
https://www.readbyqxmd.com/read/27816797/some-new-nano-sized-fe-ii-cd-ii-and-zn-ii-schiff-base-complexes-as-precursor-for-metal-oxides-sonochemical-synthesis-characterization-dna-interaction-in-vitro-antimicrobial-and-anticancer-activities
#4
Laila H Abdel-Rahman, Ahmed M Abu-Dief, Rafat M El-Khatib, Shimaa Mahdy Abdel-Fatah
The complexes of Fe(II), Cd(II) and Zn(II) with Schiff base derived from 2-amino-3-hydroxypyridine and 3-methoxysalicylaldehyde have been prepared. Melting points, decomposition temperatures, Elemental analyses, TGA, conductance measurements, infrared (IR) and UV-Visible spectrophotometric studies were utilized in characterizing the compounds. The UV-Visible spectrophotometric analysis revealed 1:1 (metal-ligand) stoichiometry for the three complexes. In addition to, the prepared complexes have been used as precursors for preparing their corresponding metal oxides nanoparticles via thermal decomposition...
November 1, 2016: Bioorganic Chemistry
https://www.readbyqxmd.com/read/27792456/antimicrobial-activity-and-chemical-composition-of-three-essential-oils-extracted-from-mediterranean-aromatic-plants
#5
Hazem S Elshafie, Shimaa Sakr, Stefania M Mang, Sandra Belviso, Vincenzo De Feo, Ippolito Camele
There is a growing interest in essential oils (EOs) as possible alternatives for traditional chemical pesticides. This study was carried out to characterize the chemical composition of the three EOs extracted from Verbena officinalis, Majorana hortensis, and Salvia officinalis using gas chromatography (GC) and GC-mass spectrometry (GC-MS) and to evaluate in vitro their efficacy against some phyto or human pathogens. The antifungal activity was investigated against Colletotrichum acutatum and Botrytis cinerea in comparison with Azoxystrobin as a large spectrum fungicide...
October 28, 2016: Journal of Medicinal Food
https://www.readbyqxmd.com/read/27753198/breast-milk-mscs-an-explanation-of-tissue-growth-and-maturation-of-offspring
#6
Somia H Abd Allah, Sally M Shalaby, Amal S El-Shal, Sameh M El Nabtety, Tarek Khamis, Shimaa A Abd El Rhman, Mahmoud A Ghareb, Hesham M Kelani
Exciting advances are revealing that breast milk harbors populations of stem and progenitor cells, and much attention is now intensified on delineating their properties and functions. The aim of this study is to isolate a mesenchymal stem cell (MSC)-like population from rabbit breast milk and track their integration into the different organs of the breastfed rabbits after taken by oral route and to explore the functional role of stem cells in the breastfed newborn babies. Ten newborn rabbits 2 weeks old fed on 2 × 10(6) PKH26-labeled rabbit milk derived-MSCs suspended in 2 mL Dulbecco's modified Eagle's medium (DMEM) and 10 newborn baby rabbits fed with 2 mL DMEM solution or with rabbit fibroblasts as a control group were used in the study...
October 17, 2016: IUBMB Life
https://www.readbyqxmd.com/read/27692686/the-effects-of-n-acetyl-cysteine-on-oxidative-stress-among-patients-with-pre-eclampsia
#7
Shimaa M Motawei, Sohayla M Attalla, Hossam E Gouda, Mona A Harouny, Adel M Elmansoury
No abstract text is available yet for this article.
November 2016: International Journal of Gynaecology and Obstetrics
https://www.readbyqxmd.com/read/27686074/molecular-detection-of-enteric-viruses-from-diarrheic-calves-in-egypt
#8
Fakry F Mohamed, Shimaa M G Mansour, Iman E El-Araby, Sunil K Mor, Sagar M Goyal
Neonatal calf diarrhea (NCD) is a major cause of morbidity, mortality and economic losses in the beef and dairy industries. This study was conducted to investigate the existence of enteric viruses in two Egyptian farms with a history of recurrent diarrhea. Fecal samples were collected from 25 diarrheic calves. RNA was extracted and tested by reverse transcription polymerase chain reaction (RT-PCR) for the presence of rotavirus, norovirus, astrovirus, torovirus, coronavirus and bovine viral diarrhea virus. Overall, 76 % (19/25) of samples tested positive for one or more viruses...
September 29, 2016: Archives of Virology
https://www.readbyqxmd.com/read/27576192/addition-of-a-sagittal-cervical-posture-corrective-orthotic-device-to-a-multimodal-rehabilitation-program-improves-short-and-long-term-outcomes-in-patients-with-discogenic-cervical-radiculopathy
#9
Ibrahim M Moustafa, Aliaa A Diab, Shimaa Taha, Deed E Harrison
OBJECTIVE: To investigate the immediate and 1-year effects of a multimodal program, with cervical lordosis and anterior head translation (AHT) rehabilitation, on the intensity of pain, disability, and peripheral and central nervous system function in patients with discogenic cervical radiculopathy (CR). DESIGN: A randomized controlled trial with 1-year and 10-week follow-up. SETTING: University research laboratory. PARTICIPANTS: Patients (N=60; 27 men) with chronic discogenic CR, a defined hypolordotic cervical spine, and AHT posture were randomly assigned to a control group (n=30; mean age, 43...
December 2016: Archives of Physical Medicine and Rehabilitation
https://www.readbyqxmd.com/read/27557134/study-of-reactivity-of-cyanoacetohydrazonoethyl-n-ethyl-n-methyl-benzenesulfonamide-preparation-of-novel-anticancer-and-antimicrobial-active-heterocyclic-benzenesulfonamide-derivatives-and-their-molecular-docking-against-dihydrofolate-reductase
#10
Khaled F Debbabi, Sami A Al-Harbi, Hamed M Al-Saidi, Enas H Aljuhani, Shimaa M Abd El-Gilil, Mahmoud S Bashandy
This article describes the synthesis of some novel heterocyclic sulfonamides having biologically active thiophene 3, 4, 5, 6, coumarin 8, benzocoumarin 9, thiazole 7, piperidine 10, pyrrolidine 11, pyrazole 14 and pyridine 12, 13. Starting with 4-(1-(2-(2-cyanoacetyl)hydrazono)ethyl)-N-ethyl-N-methylbenzenesulfonamide (2), which was prepared from condensation of acetophenone derivative 1 with 2-cyanoacetohydrazide. The structures of the newly synthesized compounds were confirmed by elemental analysis, IR, (1)H NMR, (13)C NMR, (19)F NMR and MS spectral data...
August 24, 2016: Journal of Enzyme Inhibition and Medicinal Chemistry
https://www.readbyqxmd.com/read/27555286/new-antiproliferative-7-4-n-substituted-carbamoylmethyl-piperazin-1-yl-derivatives-of-ciprofloxacin-induce-cell-cycle-arrest-at-g2-m-phase
#11
Hamada H H Mohammed, Amer Ali Abd El-Hafeez, Samar H Abbas, El-Shimaa M N Abdelhafez, Gamal El-Din A Abuo-Rahma
New N-4-piperazinyl derivatives of ciprofloxacin 2a-g were prepared and tested for their cytotoxic activity. The primary in vitro one dose anticancer assay experienced promising cytotoxic activity against different cancer cell lines especially non-small cell lung cancer. Independently, compounds 2b, 2d, 2f and 2g showed anticancer activity against human non-small cell lung cancer A549 cells (IC50=14.8, 24.8, 23.6 and 20.7μM, respectively) compared to the parent ciprofloxacin (IC50 >100μM) and doxorubicin as a positive control (IC50=1μM)...
October 1, 2016: Bioorganic & Medicinal Chemistry
https://www.readbyqxmd.com/read/27523944/large-scale-drug-screening-against-babesia-divergens-parasite-using-a-fluorescence-based-high-throughput-screening-assay
#12
Mohamed Abdo Rizk, Shimaa Abd El-Salam El-Sayed, Mahmoud AbouLaila, Bumduuren Tuvshintulga, Naoaki Yokoyama, Ikuo Igarashi
The validation of a fluorescence-based high-throughput screening (HTS) assay for determining the efficacies of large chemical libraries against Babesia divergens (bovine strain) in in vitro cultures was evaluated in this study. Hematocrits (HCTs) of 2.5%, 5%, and 10% were used for the in vitro culture at 1% parasitemia without daily replacement of the medium. Linearity and HTS assay results revealed that the best HCTs were 5% and 10%. The obtained IC50 values of diminazene aceturate, either by fluorescence-based HTS assay with and without daily replacement of medium or by fluorescence- and microscopy-based methods, did not differ significantly at 5% HCT...
August 30, 2016: Veterinary Parasitology
https://www.readbyqxmd.com/read/27512927/randomized-controlled-trial-of-rifaximin-versus-norfloxacin-for-secondary-prophylaxis-of-spontaneous-bacterial-peritonitis
#13
Asem Elfert, Lobna Abo Ali, Samah Soliman, Shimaa Ibrahim, Sherief Abd-Elsalam
BACKGROUND AND AIMS: Spontaneous bacterial peritonitis (SBP) is a serious complication of liver cirrhosis with a high recurrence rate and a marked increase in mortality. Norfloxacin is used widely for the secondary prophylaxis of SBP; however, its extensive long-term use has led to an increase in the incidence of quinolone-resistant and Gram-positive SBP. Rifaximin is a nonabsorbable broad-spectrum antibiotic and does not appear to promote emergence of resistance. The aim of this study was to compare the safety and efficacy of rifaximin versus norfloxacin for the secondary prevention of SBP in patients with liver cirrhosis and ascites...
December 2016: European Journal of Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/27467575/open-source-drug-discovery-with-the-malaria-box-compound-collection-for-neglected-diseases-and-beyond
#14
Wesley C Van Voorhis, John H Adams, Roberto Adelfio, Vida Ahyong, Myles H Akabas, Pietro Alano, Aintzane Alday, Yesmalie Alemán Resto, Aishah Alsibaee, Ainhoa Alzualde, Katherine T Andrews, Simon V Avery, Vicky M Avery, Lawrence Ayong, Mark Baker, Stephen Baker, Choukri Ben Mamoun, Sangeeta Bhatia, Quentin Bickle, Lotfi Bounaadja, Tana Bowling, Jürgen Bosch, Lauren E Boucher, Fabrice F Boyom, Jose Brea, Marian Brennan, Audrey Burton, Conor R Caffrey, Grazia Camarda, Manuela Carrasquilla, Dee Carter, Maria Belen Cassera, Ken Chih-Chien Cheng, Worathad Chindaudomsate, Anthony Chubb, Beatrice L Colon, Daisy D Colón-López, Yolanda Corbett, Gregory J Crowther, Noemi Cowan, Sarah D'Alessandro, Na Le Dang, Michael Delves, Joseph L DeRisi, Alan Y Du, Sandra Duffy, Shimaa Abd El-Salam El-Sayed, Michael T Ferdig, José A Fernández Robledo, David A Fidock, Isabelle Florent, Patrick V T Fokou, Ani Galstian, Francisco Javier Gamo, Suzanne Gokool, Ben Gold, Todd Golub, Gregory M Goldgof, Rajarshi Guha, W Armand Guiguemde, Nil Gural, R Kiplin Guy, Michael A E Hansen, Kirsten K Hanson, Andrew Hemphill, Rob Hooft van Huijsduijnen, Takaaki Horii, Paul Horrocks, Tyler B Hughes, Christopher Huston, Ikuo Igarashi, Katrin Ingram-Sieber, Maurice A Itoe, Ajit Jadhav, Amornrat Naranuntarat Jensen, Laran T Jensen, Rays H Y Jiang, Annette Kaiser, Jennifer Keiser, Thomas Ketas, Sebastien Kicka, Sunyoung Kim, Kiaran Kirk, Vidya P Kumar, Dennis E Kyle, Maria Jose Lafuente, Scott Landfear, Nathan Lee, Sukjun Lee, Adele M Lehane, Fengwu Li, David Little, Liqiong Liu, Manuel Llinás, Maria I Loza, Aristea Lubar, Leonardo Lucantoni, Isabelle Lucet, Louis Maes, Dalu Mancama, Nuha R Mansour, Sandra March, Sheena McGowan, Iset Medina Vera, Stephan Meister, Luke Mercer, Jordi Mestres, Alvine N Mfopa, Raj N Misra, Seunghyun Moon, John P Moore, Francielly Morais Rodrigues da Costa, Joachim Müller, Arantza Muriana, Stephen Nakazawa Hewitt, Bakela Nare, Carl Nathan, Nathalie Narraidoo, Sujeevi Nawaratna, Kayode K Ojo, Diana Ortiz, Gordana Panic, George Papadatos, Silvia Parapini, Kailash Patra, Ngoc Pham, Sarah Prats, David M Plouffe, Sally-Ann Poulsen, Anupam Pradhan, Celia Quevedo, Ronald J Quinn, Christopher A Rice, Mohamed Abdo Rizk, Andrea Ruecker, Robert St Onge, Rafaela Salgado Ferreira, Jasmeet Samra, Natalie G Robinett, Ulrich Schlecht, Marjorie Schmitt, Filipe Silva Villela, Francesco Silvestrini, Robert Sinden, Dennis A Smith, Thierry Soldati, Andreas Spitzmüller, Serge Maximilian Stamm, David J Sullivan, William Sullivan, Sundari Suresh, Brian M Suzuki, Yo Suzuki, S Joshua Swamidass, Donatella Taramelli, Lauve R Y Tchokouaha, Anjo Theron, David Thomas, Kathryn F Tonissen, Simon Townson, Abhai K Tripathi, Valentin Trofimov, Kenneth O Udenze, Imran Ullah, Cindy Vallieres, Edgar Vigil, Joseph M Vinetz, Phat Voong Vinh, Hoan Vu, Nao-Aki Watanabe, Kate Weatherby, Pamela M White, Andrew F Wilks, Elizabeth A Winzeler, Edward Wojcik, Melanie Wree, Wesley Wu, Naoaki Yokoyama, Paul H A Zollo, Nada Abla, Benjamin Blasco, Jeremy Burrows, Benoît Laleu, Didier Leroy, Thomas Spangenberg, Timothy Wells, Paul A Willis
A major cause of the paucity of new starting points for drug discovery is the lack of interaction between academia and industry. Much of the global resource in biology is present in universities, whereas the focus of medicinal chemistry is still largely within industry. Open source drug discovery, with sharing of information, is clearly a first step towards overcoming this gap. But the interface could especially be bridged through a scale-up of open sharing of physical compounds, which would accelerate the finding of new starting points for drug discovery...
July 2016: PLoS Pathogens
https://www.readbyqxmd.com/read/27462509/flow-and-heat-transfer-in-a-maxwell-liquid-film-over-an-unsteady-stretching-sheet-in-a-porous-medium-with-radiation
#15
Shimaa E Waheed
A problem of flow and heat transfer in a non-Newtonian Maxwell liquid film over an unsteady stretching sheet embedded in a porous medium in the presence of a thermal radiation is investigated. The unsteady boundary layer equations describing the problem are transformed to a system of non-linear ordinary differential equations which is solved numerically using the shooting method. The effects of various parameters like the Darcy parameter, the radiation parameter, the Deborah number and the Prandtl number on the flow and temperature profiles as well as on the local skin-friction coefficient and the local Nusselt number are presented and discussed...
2016: SpringerPlus
https://www.readbyqxmd.com/read/27461572/pentoxifylline-abrogates-cardiotoxicity-induced-by-the-administration-of-a-single-high-dose-or-multiple-low-doses-of-doxorubicin-in-rats
#16
Shimaa M Elshazly, Amr A A Mahmoud, Waleed Barakat
Doxorubicin (DOX) possesses a broad-spectrum antineoplastic activity; however, its clinical application is impeded by cardiotoxicity. This study aimed to investigate the protective effect of pentoxifylline (PXF), which possesses antioxidant and anti-inflammatory properties against cardiotoxicity induced by a single high dose (15 mg/kg, i.p.) or multiple low doses (2.5 mg/kg, i.p., three times per week for 2 weeks) of DOX. At the end of the experimental period, the serum creatine kinase (CK)-MB and lactate dehydrogenase (LDH) activities were measured...
June 9, 2016: Canadian Journal of Physiology and Pharmacology
https://www.readbyqxmd.com/read/27424824/rigid-bronchoscopic-intervention-for-endobronchial-metastasis-of-renal-cell-carcinoma
#17
Rie Tsuboi, Masahide Oki, Hideo Saka, Yoshihito Kogure, Saori Oka, Masashi Nakahata, Kazumi Hori, Yasushi Murakami, Yuko Ise, Shimaa Nour Moursi Ahmed, Meimei Tao, Chiyoe Kitagawa
BACKGROUND: Renal cell carcinoma is one of the major endobronchial metastases, and it occasionally causes life-threatening airway obstruction. Rigid bronchoscopy is useful as a palliative intervention; however, its utility for metastatic renal cell carcinoma has not been elucidated. The purpose of this study was to evaluate the safety and efficacy of rigid bronchoscopic treatment for endobronchial metastasis of renal cell carcinoma. METHODS: Among 550 patients who underwent rigid bronchoscopic intervention at a single center from January 2005 to June 2015, 9 with metastatic renal cell carcinoma were retrospectively reviewed...
July 2016: Respiratory Investigation
https://www.readbyqxmd.com/read/27413774/safety-and-complications-of-medical-thoracoscopy
#18
Shimaa Nour Moursi Ahmed, Hideo Saka, Hamdy Ali Mohammadien, Ola Alkady, Masahide Oki, Yoshimasa Tanikawa, Rie Tsuboi, Masahiro Aoyama, Keiji Sugiyama
Objectives. To highlight the possible complications of medical thoracoscopy (MT) and how to avoid them. Methods. A retrospective and prospective analysis of 127 patients undergoing MT in Nagoya Medical Center (NMC) and Toyota Kosei Hospital. The data about complications was obtained from the patients, notes on the computer system, and radiographs. Results. The median age was 71.0 (range, 33.0-92.0) years and 101 (79.5%) were males. The median time with chest drain after procedure was 7.0 (range, 0.0-47.0) days and cases with talc poudrage were 30 (23...
2016: Advances in Medicine
https://www.readbyqxmd.com/read/27395793/sonochemical-synthesis-dna-binding-antimicrobial-evaluation-and-in-vitro-anticancer-activity-of-three-new-nano-sized-cu-ii-co-ii-and-ni-ii-chelates-based-on-tri-dentate-noo-imine-ligands-as-precursors-for-metal-oxides
#19
Laila H Abdel-Rahman, Ahmed M Abu-Dief, Rafat M El-Khatib, Shimaa Mahdy Abdel-Fatah
Three new nano sized Cu(II), Co(II) and Ni(II) complexes of imine ligand derived from the condensation of 2-amino-3-hydroxypyridine and 3-methoxysalicylaldehyde have been prepared and investigated using various chemical techniques such as NMR, elemental analysis, molar conductance, IR, electronic spectra, TGA and magnetic moment measurements. The obtained chemical analysis data showed that the synthesis of 1:1 (metal:ligand) ratio and octahedral geometry was proposed on the basis of magnetic moment and spectral data studies except the Cu(II) complex which is tetrahedral geometry...
September 2016: Journal of Photochemistry and Photobiology. B, Biology
https://www.readbyqxmd.com/read/27382197/hepatoprotective-and-nephroprotective-effect-of-curcumin-against-copper-toxicity-in-rats
#20
Emad A Hashish, Shimaa A Elgaml
Curcumin is a natural anti-inflammatory and antioxidant with several potential health benefits. Although it has been examined in several metals toxicity studies, but its role in the protection against copper toxicity has not been investigated. In this study; the detoxification and antioxidant effect of curcumin were examined to determine its prophylactic/therapeutic role experimentally in rats. Forty albino rats were divided into five groups; control, CuSO4 (4 mg/kg body weight), curcumin (80 mg/kg body weight), curcumin post-treatment (CuSO4 for 15 days followed by curcumin for the next 15 days) and curcumin co-treatment (CuSO4 plus curcumin for 30 days)...
July 2016: Indian Journal of Clinical Biochemistry: IJCB
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