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Djalal Trache, M Hazwan Hussin, Caryn Tan Hui Chuin, Sumiyyah Sabar, M R Nurul Fazita, Owolabi F A Taiwo, T M Hassan, M K Mohamad Haafiz
Considering its widespread usage in various fields, such as food, pharmaceutical, medical, cosmetic and polymer composites industries, microcrystalline cellulose (MCC) is becoming impellent due to increasing demand of alternatives to non-renewable and scarce fossil materials. Although it still suffers from some drawbacks, MCC has recently gained more interest owing to its renewability, non-toxicity, economic value, biodegradability, high mechanical properties, high surface area and biocompatibility. New sources, new isolation processes, and new treatments are currently under development to satisfy the increasing demand of producing new types of MCC-based materials on an industrial scale...
September 16, 2016: International Journal of Biological Macromolecules
N Majumder
The study has been conducted in the Potka Block of East Singhbhum district of the state of Jharkhand. The district is mainly dominated by indigenous tribes, such as, Santhal, Munda, Ho, Bhumiz, Kharia, and Sabar. The unit of analysis of the study was an individual. The objectives were to: a) Understand the socio-economic and health status of LAP, b) Know the health seeking behavior and problems faced by the LAP, c) Assess the utilization of the programs related to Leprosy eradication in the study area and d), Suggest various measures for improving the socio-economic and health status of LAP...
July 2015: Indian Journal of Leprosy
Zafar Iqbal, Tanveer Akhtar, Tashfin Awan, Aamer Aleem, Noreen Sabir, Mahmood Rasool, Muhammad Absar, Afia M Akram, Masood A Shammas, Ijaz H Shah, Muhammad Khalid, Abid S Taj, Abid Jameel, Abdullah Alanazi, Ammara T Gill, Jamil Amjad Hashmi, Akhtar Hussain, Muhammad Farooq Sabar, Ahmad M Khalid, Mehmood Hussain Qazi, Sajjad Karim, Muhammad Hassan Siddiqi, Aamir Mahmood, Mudassar Iqbal, Anjum Saeed, Muhammad Imran Irfan
BACKGROUND: Fusion oncogenes (FOs) resulting from chromosomal abnormalities have an important role in leukemogenesis in pediatric B cell acute lymphoblastic leukemia (ALL). The most common FOs are BCR-ABL, MLL-AF4, ETV6-RUNX1, and TCF3-PBX1, all of which have important prognostic and drug selection implications. Moreover, frequencies of FOs have ethnic variations. We studied Pakistani frequencies of FOs, clinical pattern, and outcome in pediatric B-ALL. METHODS: FOs were studied in 188 patients at diagnosis using reverse transcriptase-polymerase chain reaction (RT-PCR) and interphase fluorescent in situ hybridization (FISH)...
October 2015: Molecular Diagnosis & Therapy
Mariam Shahid, Muhammad Farooq Sabar, Iqbal Bano, Ziaur Rahman, Zafar Iqbal, Sayyeda Saadia Fatim Ali, Muhammad Usman Ghani, Muhammad Iqbal, Tayyab Husnain
OBJECTIVE: Single nucleotide polymorphisms (SNPs) on 17q21 are known to be associated with asthma disease in multiple populations. This study was designed to know whether this region is associated with asthma in Lahore region population or not. METHODS: A total of 200 asthma patients and 100 healthy controls were enrolled from different hospitals of Lahore, Pakistan. Twelve SNPs from chromosomal region 17q21 were analyzed in cases and controls by single base extension method and capillary-based genetic analyzers...
October 2015: Journal of Asthma: Official Journal of the Association for the Care of Asthma
Kashif Ur Rehman, Tanveer Akhtar, Muhammad Farooq Sabar, Muhammad Akram Tariq
Drug resistance is a phenomenon that has become a critical issue in medical practice. Such is the case in the response to clopidogrel treatment, which is variable inter-individually and inter-ethnically due to genetic polymorphisms in the cytochrome P40 (CYP) gene. Clopidogrel is an anti-platelet agent administered to cardiac patients in the form of a prodrug, which is further metabolized into an active form by CYP enzymes. There are many allelic variants of the CYP gene that are involved in clopidogrel resistance, of which CYP2C19*2 has been demonstrated to be one of the most significant loss-of-function alleles...
July 2015: Experimental and Therapeutic Medicine
Victor Sabarly, Cécile Aubron, Jérémy Glodt, Thierry Balliau, Olivier Langella, Didier Chevret, Odile Rigal, Aurélie Bourgais, Bertrand Picard, Dominique de Vienne, Erick Denamur, Odile Bouvet, Christine Dillmann
To gain insights into the adaptation of the Escherichia coli species to different environments, we monitored protein abundances using quantitative proteomics and measurements of enzymatic activities of central metabolism in a set of five representative strains grown in four contrasted culture media including human urine. Two hundred and thirty seven proteins representative of the genome-scale metabolic network were identified and classified into pathway categories. We found that nutrient resources shape the general orientation of metabolism through coordinated changes in the average abundances of proteins and in enzymatic activities that all belong to the same pathway category...
January 2016: Environmental Microbiology
Michael Silbermann, Regina M Fink, Sung-Joon Min, Mary P Mancuso, Jeannine Brant, Ramzi Hajjar, Nesreen Al-Alfi, Lea Baider, Ibrahim Turker, Karima ElShamy, Ibtisam Ghrayeb, Mazin Al-Jadiry, Khaled Khader, Sultan Kav, Haris Charalambous, Ruchan Uslu, Rejin Kebudi, Gil Barsela, Nilgün Kuruku, Kamer Mutafoglu, Gulsin Ozalp-Senel, Amitai Oberman, Livia Kislev, Mohammad Khleif, Neophyta Keoppi, Sophia Nestoros, Rasha Fahmi Abdalla, Maryam Rassouli, Amira Morag, Ron Sabar, Omar Nimri, Mohammad Al-Qadire, Murad Al-Khalaileh, Mona Tayyem, Myrna Doumit, Rehana Punjwani, Osaid Rasheed, Fatimah Fallatah, Gulbeyaz Can, Jamila Ahmed, Debbie Strode
BACKGROUND: Cancer incidence in Middle Eastern countries, most categorized as low- and middle-income, is predicted to double in the next 10 years, greater than in any other part of the world. While progress has been made in cancer diagnosis/treatment, much remains to be done to improve palliative care for the majority of patients with cancer who present with advanced disease. OBJECTIVE: To determine knowledge, beliefs, barriers, and resources regarding palliative care services in Middle Eastern countries and use findings to inform future educational and training activities...
January 2015: Journal of Palliative Medicine
Sabina Wangui Wachira, Sabar Omar, Julia Wanjiru Jacob, Martin Wahome, Hans T Alborn, David R Spring, Daniel K Masiga, Baldwyn Torto
BACKGROUND: The African malaria vector, Anopheles gambiae s.s., is known to feed selectively on certain plants for sugar sources. However, the adaptive significance of this behaviour especially on how the extracts of such plants impact on the fitness of this vector has not been explored. This study determined the toxicity and larvicidal activity on this vector of extracts from six selected plants found in Kenya and two compounds identified from Ricinus communis: 3-carbonitrile-4-methoxy-N-methyl-2-pyridone (ricinine), and its carboxylic acid derivative 3-carboxy-4-methoxy-N-methyl-2-pyridone, the latter compound being reported for the first time from this plant...
2014: Parasites & Vectors
Nasser R Sabar, Masri Ayob, Graham Kendall, Rong Qu
Hyper-heuristics are search methodologies that aim to provide high-quality solutions across a wide variety of problem domains, rather than developing tailor-made methodologies for each problem instance/domain. A traditional hyper-heuristic framework has two levels, namely, the high level strategy (heuristic selection mechanism and the acceptance criterion) and low level heuristics (a set of problem specific heuristics). Due to the different landscape structures of different problem instances, the high level strategy plays an important role in the design of a hyper-heuristic framework...
February 2015: IEEE Transactions on Cybernetics
Magot Diata Omokoko, Sabar Pambudi, Supranee Phanthanawiboon, Promsin Masrinoul, Chayanee Setthapramote, Tadahiro Sasaki, Motoki Kuhara, Pongrama Ramasoota, Akifumi Yamashita, Itaru Hirai, Kazuyoshi Ikuta, Takeshi Kurosu
The immune response to dengue virus (DENV) infection generates high levels of antibodies (Abs) against the DENV non-structural protein 1 (NS1), particularly in cases of secondary infection. Therefore, anti-NS1 Abs may play a role in severe dengue infections, possibly by interacting (directly or indirectly) with host factors or regulating virus production. If it does play a role, NS1 may contain epitopes that mimic those epitopes of host molecules. Previous attempts to map immunogenic regions within DENV-NS1 were undertaken using mouse monoclonal Abs (MAbs)...
July 2014: American Journal of Tropical Medicine and Hygiene
C P Hunter
The orientation of barley anthers on culture medium had a marked effect on their response. Embryoids developed only in the upper lobes of anthers cultured on edge, i.e. with a single lobe in contact with the culture medium. Anthers cultured flat, i.e. with both lobes in contact with the medium, did not respond. Careful orientation of anthers at the start of incubation resulted in a mean yield of 20 green plants per 100 anthers cultured.
October 1985: Plant Cell Reports
Z M Wei, M Kyo, H Harada
Pollen calli and plantlets of Hordeum vulgare cv. 'Sabarlis' were obtained through direct pollen culture without pretreatment of spikes or preculture of anthers. Isolated immature pollen grains were cultured first in a 0.3 M mannitol solution or a C1 basal medium (Chen et al. 1979) supplemented with 0.3 M mannitol but without sucrose for 5-7 days, then transferred into a C1 medium containing 6% sucrose, 3 mM glutamine and 5 mM m-inositol. After a 3 week culture period small pollen calli derived from the pollen grains were transferred into a growth medium comprising C1 basal medium supplemented with 250 mg/1 lactalbumin hydrolysate and 0...
March 1986: TAG. Theoretical and Applied Genetics. Theoretische und Angewandte Genetik
J M Dunwell, R J Francis, W Powell
The inheritance of the ability of barley anthers to produce microspore-derived callus in vitro was investigated. The genotypes selected were the two spring cultivars 'Dissa' (D) and 'Sabarlis' (S), the two F1 hybrids (DxS, SxD), the two backcross generations [Dx(DxS), Sx(DxS)], and an F2 generation derived from DxS. From a number of individuals of each generation, the first five spikes were harvested sequentially and after pre-treatment the anthers were removed and placed in culture. Cultures were scored for microspore callus production and plantlet differentiation...
May 1987: TAG. Theoretical and Applied Genetics. Theoretische und Angewandte Genetik
Sabar Pambudi, Norihito Kawashita, Supranee Phanthanawiboon, Magot Diata Omokoko, Promsin Masrinoul, Akifumi Yamashita, Kriengsak Limkittikul, Teruo Yasunaga, Tatsuya Takagi, Kazuyoshi Ikuta, Takeshi Kurosu
The non-structural protein NS2B/NS3 serine-protease complex of the dengue virus (DENV) is required for the maturation of the viral polyprotein. Dissociation of the NS2B cofactor from NS3 diminishes the enzymatic activity of the complex. In this study, we identified a small molecule inhibitor that interferes with the interaction between NS2B and NS3 using structure-based screening and a cell-based viral replication assay. A library containing 661,417 small compounds derived from the Molecular Operating Environment lead-like database was docked to the NS2B/NS3 structural model...
October 25, 2013: Biochemical and Biophysical Research Communications
Ron Sabar, Wajdi Safadi
End-stage congestive heart failure is a leading diagnosis among hospice patients without cancer. As in terminally ill cancer patients; the aim of the treatment was to focus on palliation and maximum symptom relief. Anasarca, a widespread swelling of the skin because of effusion of fluid into the extracellular space, is a common sign in end-stage heart failure causing much pain and discomfort. We described a simple, safe, bed-side technique to alleviate the discomfort associated with massive scrotal oedema.
2013: BMJ Case Reports
Promsin Masrinoul, Magot Diata Omokoko, Sabar Pambudi, Kazuyoshi Ikuta, Takeshi Kurosu
Dengue virus (DENV) infection induces a strong B-cell immune response against the viral nonstructural protein 1 (NS1). Anti-NS1 antibodies (Abs) may affect virus production because they coexist with the virus in the patients' blood. The present study examined whether ten mouse monoclonal antibodies (MAbs) raised against NS1 affected production of the DENV-2. Three MAbs, 4C2, 4G11, and 4E5, showed weak neutralizing activity in a focus reduction assay. In addition, two serotype-specific MAbs, 4C2 and 4G11, protected suckling mice from lethal infection with DENV-2...
August 2013: Viral Immunology
Arash Dehzangi, Farhad Larki, Sabar D Hutagalung, Mahmood Goodarz Naseri, Burhanuddin Y Majlis, Manizheh Navasery, Norihan Abdul Hamid, Mimiwaty Mohd Noor
In this letter, we investigate the fabrication of Silicon nanostructure patterned on lightly doped (10(15) cm(-3)) p-type silicon-on-insulator by atomic force microscope nanolithography technique. The local anodic oxidation followed by two wet etching steps, potassium hydroxide etching for silicon removal and hydrofluoric etching for oxide removal, are implemented to reach the structures. The impact of contributing parameters in oxidation such as tip materials, applying voltage on the tip, relative humidity and exposure time are studied...
2013: PloS One
Hamonangan Nainggolan, Saharman Gea, Emiliano Bilotti, Ton Peijs, Sabar D Hutagalung
The effects of the addition of fibres of bacterial cellulose (FBC) to commercial starch of Mater-Bi(®) have been investigated. FBC produced by cultivating Acetobacter xylinum for 21 days in glucose-based medium were purified by sodium hydroxide 2.5 wt % and sodium hypochlorite 2.5 wt % overnight, consecutively. To obtain water-free BC nanofibres, the pellicles were freeze dried at a pressure of 130 mbar at a cooling rate of 10 °C min(-1). Both Mater-Bi and FBC were blended by using a mini twin-screw extruder at 160 °C for 10 min at a rotor speed of 50 rpm...
2013: Beilstein Journal of Nanotechnology
Muhammad Farooq Sabar, Samra Kausar, Ahmad Usman Zafar
Di-branched (Y-shaped) polyethylene glycols (PEGs) are considered more effective than linear molecules to enhance the efficacy of the conjugated drug. In the present study interferon α-2a was conjugated with three different 40 KDa di-branched PEGs. The results of this study show that length and/or the structure of linker between PEG and the protein is also involved in the synthesis, in vitro biological activity and stability of the conjugate. Three conjugates i.e., mPEG2L-IFN, mPEG2P-IFN and mPEG(2)M-IFN yielded 25%, 24% and 17%, with bioactivities 2...
March 2013: Pakistan Journal of Pharmaceutical Sciences
Farhad Larki, Arash Dehzangi, Alam Abedini, Ahmad Makarimi Abdullah, Elias Saion, Sabar D Hutagalung, Mohd N Hamidon, Jumiah Hassan
A double-lateral-gate p-type junctionless transistor is fabricated on a low-doped (10(15)) silicon-on-insulator wafer by a lithography technique based on scanning probe microscopy and two steps of wet chemical etching. The experimental transfer characteristics are obtained and compared with the numerical characteristics of the device. The simulation results are used to investigate the pinch-off mechanism, from the flat band to the off state. The study is based on the variation of the carrier density and the electric-field components...
2012: Beilstein Journal of Nanotechnology
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