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https://www.readbyqxmd.com/read/28330322/de-novo-transcriptome-sequencing-in-monsonia-burkeana-revealed-putative-genes-for-key-metabolic-pathways-involved-in-tea-quality-and-medicinal-value
#1
Adugna A Woldesemayat, Khayalethu Ntushelo, David M Modise
Monsonia (Monsonia burkeana Planch. ex Harv) is one of the most valuable tea and traditional medicinal plants used in Southern Africa. In spite of this, there is no sequence information regarding this plant in literature. To provide understanding of the naturally occurring tea and drug-specific products and the key pathways for the biosynthesis of these molecules, we sequenced the leaf transcriptome using Illumina MiSeq platform and generated 2,590,652 paired-end reads that were assembled de novo into 45,450 high-quality transcripts...
December 2016: 3 Biotech
https://www.readbyqxmd.com/read/28330312/isolation-and-screening-of-l-asparaginase-free-of-glutaminase-and-urease-from-fungal-sp
#2
Kruthi Doriya, Devarai Santhosh Kumar
L-Asparaginase is a chemotherapeutic drug used in the treatment of acute lymphoblastic leukaemia (ALL), a malignant disorder in children. L-Asparaginase helps in removing acrylamide found in fried and baked foods that is carcinogenic in nature. L-Asparaginase is present in plants, animals and microbes. Various microorganisms such as bacteria, yeast and fungi are generally used for the production of L-asparaginase as it is difficult to obtain the same from plants and animals. L-Asparaginase from bacteria causes anaphylaxis and other abnormal sensitive reactions due to low specificity to asparagine...
December 2016: 3 Biotech
https://www.readbyqxmd.com/read/28330259/identification-of-endophytic-bacillus-mojavensis-with-highly-specialized-broad-spectrum-antibacterial-activity
#3
B Jasim, S Sreelakshmi, Jyothis Mathew, E K Radhakrishnan
Biosynthetic adaptation of endophytic bacteria to chemically support host plant is very remarkable. Hence these organisms from medicinal plants are considered as highly valuable sources for natural products with diverse bioactivity. Their metabolite diversity and biosynthetic versatility have been increasingly explored for drug discovery. In this study, an endophytic Bacillus mojavensis with broad spectrum antibacterial properties has been analyzed for the chemical basis of its activity. By LC-MS/MS the organism was identified to have the biosynthetic ability to produce lipopeptides surfactin and fengycin...
December 2016: 3 Biotech
https://www.readbyqxmd.com/read/28330254/enhanced-production-of-an-anti-malarial-compound-artesunate-by-hairy-root-cultures-and-phytochemical-analysis-of-artemisia-pallens-wall
#4
Zarna Pala, Vishnu Shukla, Anshu Alok, Subhash Kudale, Neetin Desai
Artemisinin and its derivatives are still one of the most effective drugs for the treatment of malaria. Artemisia pallens commonly known as Dhavanam, is an aromatic herb belonging to the family Asteraceae. Increasing the artemisinin content of A. pallens by genetic engineering would improve the availability of this much needed drug. In the present study, Agrobacterium rhizogenes (strain NCIM 5140) mediated genetic transformation of Artemisia pallens were carried out for hairy root induction. The effect of different media (Half MS, MS, MS along with BAP 0...
December 2016: 3 Biotech
https://www.readbyqxmd.com/read/28330212/paper-wasp-nest-mediated-biosynthesis-of-silver-nanoparticles-for-antimicrobial-catalytic-anticoagulant-and-thrombolytic-applications
#5
Agbaje Lateef, Monsurat A Akande, Sunday A Ojo, Bolaji I Folarin, Evariste B Gueguim-Kana, Lorika S Beukes
Biosynthesis of silver nanoparticles (AgNPs) using nest extract of paper wasp (Polistes sp) was investigated in this work. The AgNPs were characterized by UV-Vis spectroscopy, Fourier transform infrared spectroscopy (FTIR), and transmission electron microscopy (TEM), and evaluated for antibacterial, antifungal, dye degradation, blood anticoagulation, and blood clot dissolution (thrombolytic) activities. The crystalline polydispersed AgNPs with size range of 12.5-95.55 nm absorbed maximally at 428 nm and showed anisotropic structures of sphere, triangle, hexagon, rod, and rhombus...
December 2016: 3 Biotech
https://www.readbyqxmd.com/read/28330178/emergence-of-mixed-infection-of-beijing-non-beijing-strains-among-multi-drug-resistant-mycobacterium-tuberculosis-in-pakistan
#6
Samar Mustafa, Hasnain Javed, Jawairia Hashmi, Nazia Jamil, Zarfishan Tahir, Abdul Majeed Akhtar
Tuberculosis (TB) remains as one of the deadliest diseases after HIV globally with 95 % of deaths confined to low-and-middle income countries. Pakistan is fifth among the 22 high-burden TB countries with the incidence rate of 230/100,000 persons, however, studies related to prevalent Mycobacterium tuberculosis strains and their spread, drug resistance pattern and evolutionary genetics are inadequate. The present study was undertaken to highlight the circulation of M. tuberculosis strains causing drug resistant TB in our community by targeting the molecular marker IS6110 and then characterization of these strains as Beijing and Non-Beijing genotypes...
June 2016: 3 Biotech
https://www.readbyqxmd.com/read/28330176/molecular-dissection-of-pathway-components-unravel-atisine-biosynthesis-in-a-non-toxic-aconitum-species-a-heterophyllum-wall
#7
Varun Kumar, Nikhil Malhotra, Tarun Pal, Rajinder Singh Chauhan
Aconitum heterophyllum is an important component for various herbal drug formulations due to the occurrence of non-toxic aconites including marker compound, atisine. Despite huge pharmacological potential, the reprogramming of aconites production is limited due to lack of understanding on their biosynthesis. To address this problem, we have proposed here the complete atisine biosynthetic pathway for the first time connecting glycolysis, MVA/MEP, serine biosynthesis and diterpene biosynthetic pathways. The transcript profiling revealed phosphorylated pathway as a major contributor towards serine production in addition to repertoire of genes in glycolysis (G6PI, PFK, ALD and ENO), serine biosynthesis (PGDH and PSAT) and diterpene biosynthesis (KO and KH) sharing a similar pattern of expression (2-4-folds) in roots compared to shoots vis-à-vis atisine content (0-0...
June 2016: 3 Biotech
https://www.readbyqxmd.com/read/28330105/deciphering-the-effect-of-novel-bacterial-exopolysaccharide-based-nanoparticle-cream-against-propionibacterium-acnes
#8
Abraham P Karlapudi, Vidya P Kodali, Krishna P Kota, Sabiha S Shaik, N S Sampath Kumar, Vijaya R Dirisala
Acne vulgaris (acne) is a chronic inflammatory disease prevalent among adolescents and adults, with significant psychological effects. The aetiology of acne is multifactorial. Several pathophysiological associations have been identified in which Propionibacterium acnes plays a major role. This bacteria primarily affects areas containing oil glands including the face, back and trunk, where it causes the formation of seborrhoea and inflammatory lesions. The treatment methods currently in place have side effects...
June 2016: 3 Biotech
https://www.readbyqxmd.com/read/28330090/piper-betle-leaf-extract-affects-the-quorum-sensing-and-hence-virulence-of-pseudomonas-aeruginosa-pao1
#9
Siraj Datta, Debanjan Jana, Tilak Raj Maity, Aveek Samanta, Rajarshi Banerjee
Quorum sensing (QS) plays an important role in virulence of Pseudomonas aeruginosa, blocking of QS ability are viewed as viable antimicrobial chemotherapy and which may prove to be a safe anti-virulent drug. Bioactive components from Piper betle have been reported to possess antimicrobial ability. This study envisages on the anti-QS properties of ethanolic extract of P. betle leaf (PbLE) using P. aeruginosa PAO1 as a model organism. A marked reduction in swarming, swimming, and twitching ability of the bacteria is demonstrated in presence of PbLE...
June 2016: 3 Biotech
https://www.readbyqxmd.com/read/28330089/discovery-of-potential-alk-inhibitors-by-virtual-screening-approach
#10
Anish Kumar, V Shanthi, K Ramanathan
Crizotinib is an anticancer drug used for the treatment of non-small cell lung cancer. Evidences available suggest that there is a development of an acquired resistance against crizotinib action due to the emergence of several mutations in the ALK gene. It is therefore necessary to develop potent anti-cancer drugs for the treatment of crizotinib resistance non-small cell lung cancer types. In the present study, a novel class of lead molecule was identified using virtual screening, molecular docking and molecular dynamic approach...
June 2016: 3 Biotech
https://www.readbyqxmd.com/read/28330072/molecular-dynamic-simulations-of-escherichia-coli-l-asparaginase-to-illuminate-its-role-in-deamination-of-asparagine-and-glutamine-residues
#11
Rajeswara Reddy Erva, Satish Babu Rajulapati, Chandrasai Potla Durthi, Mayuri Bhatia, Madhuri Pola
Acute lymphocytic leukemia (ALL) is an outrageous disease worldwide. L-Asparagine (L-Asn) and L-Glutamine (L-Gln) deamination play a crucial role in ALL treatment. Role of Elspar(®) (L-asparaginase from Escherichia coli) in regulation of L-Asn and L-Gln has been confirmed by the other researchers through experimental studies. Therapeutic research against ALL remained elusive with the lack of information on molecular interactions of Elspar(®) with amino acid substrates. In the present study, using different docking tools binding cavities, key residues in binding and ligand binding mechanisms were identified...
June 2016: 3 Biotech
https://www.readbyqxmd.com/read/28329944/-evolutionary-characteristics-and-positive-selection-site-of-hepatitis-c-virus-isolated-in-intravenous-drug-users-in-pudong-new-district-shanghai
#12
Y Wang, H Y Wu, X C Zhao, W P Zhu, Q Wan, Y H Lu, Q W Jiang
Objective: To understand the genotypes of hepatitis C virus (HCV) circulating in intravenous drug users (IDUs) in Pudong new district, Shanghai, and explore the population growth and selection pressure of the HCV strains isolated. Methods: A total of 200 serum specimens sampled from IDUs in local methadone maintenance treatment clinic in Pudong were used for amplification of a HCV NS5B 377-nt partial sequence. Mean evolutionary rate and effective number of infections were estimated based on the 377-nt partial sequences of the HCV strains isolated from IDUs and isolated contemporarily from local voluntary blood donors, men who have sex with men and reported hepatitis C cases by using BEAST software...
March 10, 2017: Zhonghua Liu Xing Bing Xue za Zhi, Zhonghua Liuxingbingxue Zazhi
https://www.readbyqxmd.com/read/28329935/-a-cross-sectional-survey-of-receiving-no-methadone-maintenance-treatment-in-hiv-infected-injecting-drug-users-in-dehong-dai-and-jingpo-autonomous-prefecture-yunnan-province
#13
R H Tang, R H Ye, Y C Yang, S T Yao, J B Wang, R M Zhang, L F Luo, Z L Wu, Y C Long, M S Yin, N He, S Duan
Objective: To understand the current status of receiving no methadone maintenance treatment (MMT) and influencing factors in HIV infected injecting drug users (IDUs) in Dehong Dai and Jingpo autonomous prefectures, Yunnan province. Methods: Data of survival of IDUs with AIDS in Dehong were collected from " Chinese National Comprehensive HIV/AIDS and Care Information System" in December, 2014. Results: There were 987 IDUs who should receive MMT, the majority of them were males (94.6%, 934/987), aged 35-44 years (53...
March 10, 2017: Zhonghua Liu Xing Bing Xue za Zhi, Zhonghua Liuxingbingxue Zazhi
https://www.readbyqxmd.com/read/28329898/-analysis-of-secondary-data-to-determine-the-prevalence%C3%A2-of%C3%A2-cardiovascular-high-risk-patients-with-hypercholesterolemia-and-refractory-course-of-treatment
#14
Franz-Werner Dippel, Klaus G Parhofer, Thomas Müller-Bohn, Steffen Gebhardt, Karel Kostev
Background Hypercholesterolemia plays a causal role in the development of cardiovascular diseases. Patients are affected differently. There is a lack of epidemiological data about the frequence and characteristics of patients in Germany, especially about those who do not respond sufficiently to high intensity statins with or without other lipid modifying therapies. Methods From more than 2.6 million patient records of office based general practitioners, patients with hypercholestrolemia and high cardiovascular risk, who do not reach their individual LDL-C goal despite a best supplied twelve month maximum lipid lowering therapy (MPR ≥ 80 %), were extracted from the database...
March 2017: Deutsche Medizinische Wochenschrift
https://www.readbyqxmd.com/read/28329892/ocular-toxoplasmosis-therapy-related-adverse-drug-reactions-and-their-management
#15
M Helfenstein, S Zweifel, D Barthelmes, F Meier, J Fehr, C Böni
Background There are different treatment options for ocular toxoplasmosis (OT). "Classic" therapy consists of pyrimethamine, sulfadiazine and folinic acid combined with systemic steroids and is still widely used. However, potentially severe side effects of this therapy have been reported. The aim of this retrospective study was to evaluate the incidence and types of adverse drug reactions in patients treated for OT. Clinical management of each adverse drug reaction was assessed. Patients and Methods In this retrospective analysis, we reviewed data of patients with OT, who were consecutively examined between December 2011 and December 2015 at the Department of Ophthalmology, University Hospital Zurich...
March 22, 2017: Klinische Monatsblätter Für Augenheilkunde
https://www.readbyqxmd.com/read/28329870/application-of-imaging-techniques-to-cases-of-drug-induced-crystal-nephropathy-in-preclinical-studies
#16
B Lenz, A Brink, M Siam, A De Paepe, S Bassett, A Eichinger-Chapelon, P Maliver, R Neff, U Niederhauser, B Steinhuber, R Zurbach, T Singer, C Funk, F Schuler, M Albassam, S Schadt
A number of drugs can cause precipitates within renal tubules leading to crystal nephropathy. Crystal nephropathy is usually an exposure-related finding and is not uncommon in preclinical studies, where high doses are tested. An understanding of the nature of precipitates is important for human risk assessment and further development. Our aim was to investigate the ability of various imaging techniques to detect the presence of drugs or metabolites in renal crystals. We applied matrix-assisted laser desorption/ionization - Fourier transform ion cyclotron resonance mass spectrometry (MALDI-FTICR MS) imaging, Raman and infrared microspectroscopy, scanning electron microscopy coupled with energy dispersive X-ray (SEM/EDX) spectroscopy and standard histopathology to cases of drug-induced crystal nephropathy, induced in rodents and primates by four compounds...
February 27, 2017: Toxicological Sciences: An Official Journal of the Society of Toxicology
https://www.readbyqxmd.com/read/28329820/hepatocellular-toxicity-of-imidazole-and-triazole-antimycotic-agents
#17
Patrizia Haegler, Lorenz Joerin, Stephan Krähenbühl, Jamal Bouitbir
Hepatotoxicity has been described for all antimycotic azoles currently marketed. A possible mechanism involving mitochondrial dysfunction has been postulated for ketoconazole, but not for the other azoles. The aim of the current investigations was to study the toxicity of different azoles in human cell models and to find out mechanisms of their toxicity. In HepG2 cells, posaconazole and ketoconazole were cytotoxic starting at 20 and 50 µM and decreased the cellular ATP content starting at 5 and 10 µM, respectively...
January 27, 2017: Toxicological Sciences: An Official Journal of the Society of Toxicology
https://www.readbyqxmd.com/read/28329813/widowhood-and-alcohol-tobacco-and-other-drug-use-among-older-adults-in-india
#18
Jessica M Perkins, Hwa-Young Lee, Jong-Koo Lee, Jongho Heo, Aditi Krishna, Sugy Choi, You-Seon Nam, Juhwan Oh, S V Subramanian
Objective: We sought to assess how widowhood among older adults in India was associated with alcohol consumption, smoking, and use of chewing tobacco or other drugs. Method: Data were collected in 2011 from 9,852 adults aged 60 and older from seven regionally diverse states in India. Regression analyses provided estimates of the relationship between widowhood and having smoked cigarettes, consumed alcohol, or used chewed tobacco or other drugs in the past month among men, adjusting for demographic and socioeconomic factors...
October 24, 2016: Journals of Gerontology. Series B, Psychological Sciences and Social Sciences
https://www.readbyqxmd.com/read/28329801/compact-magnetic-resonance-imaging-systems-novel-cost-effective-tools-for-preclinical-drug-safety-and-efficacy-evaluation
#19
Yuval Ramot, Yael S Schiffenbauer, Robert Maronpot, Abraham Nyska
Practical magnetic resonance imaging for use in investigative and preclinical toxicology studies is now feasible. Newly developed, self-containing imaging systems provide an efficient and cost-effective means to rapidly obtain in vivo and ex vivo magnetic resonance imaging images to improve how we perform toxicology and toxicologic pathology.
January 30, 2017: Toxicological Sciences: An Official Journal of the Society of Toxicology
https://www.readbyqxmd.com/read/28329741/drugs-violence-and-trauma-in-m%C3%A3-xico-and-united-states
#20
Juan Carlos Puyana, Juan Carlos Jacob Puyana, Andres Mariano Rubiano, Jorge Hernan Montenegro, Glyn O Estebanez, Alvaro Ignacio Sanchez, Felipe Vega-Rivera
The impact of illicit drug markets on the occurrence of violence varies tremendously depending on many factors. Over the last years, Mexico and United States (US) has increased security border issues that included many aspects of drug-related trade and criminal activities. Mexico experienced only a small reduction of trauma deaths after severe crime reinforcement policies. This strategy in the war on drugs is shifting the drug market to other Central American countries. This phenomenon is called the ballooning effect where by pressure to control illicit drug related activities in one particular area forces a shift to other more vulnerable areas that lead to increase crime and violence...
March 21, 2017: Medical Principles and Practice: International Journal of the Kuwait University, Health Science Centre
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