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Angiogenesis in Chronic Obstructive Pulmonary Disease Nature Precedings
Alessandro Matarese; Gaetano Santulli.
Angiogenesis is a crucial component of lung pathophysiology, not only in cancer but also in other disorders, such as chronic obstructive pulmonary disease (COPD). In COPD angiogenesis is definitely able to control and orchestrate the progression of airway remodeling. Herein, we provide several remarkable translational aspects of angiogenesis in COPD, exploring both basic and clinical research in this field. Indeed, we present a number of pro- and anti-angiogenic factors, which can be also used as potential biomarkers to monitor disease progression. 

This pre-print has subsequently been published at http://www.unisa.it/uploads/7100/06.pdf
Tipo: Manuscript Palavras-chave: Immunology; Molecular Cell Biology; Pharmacology.
Ano: 2012 URL: http://precedings.nature.com/documents/7112/version/1
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Animal models of anxiety: an ethological perspective BJMBR
In the field of anxiety research, animal models are used as screening tools in the search for compounds with therapeutic potential and as simulations for research on mechanisms underlying emotional behaviour. However, a solely pharmacological approach to the validation of such tests has resulted in distinct problems with their applicability to systems other than those involving the benzodiazepine/GABAA receptor complex. In this context, recent developments in our understanding of mammalian defensive behaviour have not only prompted the development of new models but also attempts to refine existing ones. The present review focuses on the application of ethological techniques to one of the most widely used animal models of anxiety, the elevated plus-maze...
Tipo: Info:eu-repo/semantics/other Palavras-chave: Animal models of anxiety; Ethology; Defence; Risk assessment; Plus-maze; Behavioural profiling; Pharmacology.
Ano: 1997 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X1997000300002
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Anticancer efficacy of phenolics based structurally related compounds and their radical scavenging action Nature Precedings
Vijaya Dubey; Nusrat Masood; Suaib Luqman; Arvind S. Negi.
Cancer, one of the leading causes of death worldwide, is an abnormal cell proliferation that fails to respond to the normal signals. In an effort to eradicate the growing menace of cancer, a clear understanding of fundamental biology and molecular mechanism of carcinogenesis is essential for targeted therapies. Among the devised strategies in use for cancer treatment, the one that is of immense interest is the development of plant based novel anticancer agents. Due to their tremendous availability, biological activity and efficacy, the phytochemicals deemed a gibbous future in chemoprevention. In the present study, several phenolics based structurally related compounds of steroidal and non-steroidal skeleton were synthesized and tested for their...
Tipo: Poster Palavras-chave: Cancer; Chemistry; Pharmacology.
Ano: 2011 URL: http://precedings.nature.com/documents/6644/version/1
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Antidiabetic, Anti-hyperlipidemic & Hepatoprotective effect of a Polyherbal Unani formulation “Qurs Tabasheer” in STZ-diabetic wistar rats Nature Precedings
Danish Ahmed; Manju Sharma; Alok Mukerjee; Raja Kamal Kant; Vikas Kumar.
The present study was undertaken to evaluate the antihyperglycemic, antihyperlipidemic and hepatoprotective effect of a traditional unani formulation “Qurs Tabasheer” in streptozotocin (STZ) induced diabetic wistar rats. Up until now, no study was undertaken to appraise the efficacy of “Qurs Tabasheer” in the diabetic rats. Qurs Tabasheer is a unani formulation restraining preparations from six various herbs namely Tukhme Khurfa (Portulaca oleracea seed), Gule Surkh (Rosa damascena flower), Gile armani (Arminium bole), Gulnar (Punica granatum flower), Tabasheer (Bambusa arundinasia dried exudate on node), Tukhme Kahu (Lactuca sativa Linn seed). The effect of Qurs Tabasheer was assessed in STZ (60 mg/kg, i.p...
Tipo: Manuscript Palavras-chave: Pharmacology; Plant Biology.
Ano: 2012 URL: http://precedings.nature.com/documents/7056/version/1
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Antifungal pharmacodynamics: Latin America's perspective BJID
Gonzalez,Javier M.; Rodriguez,Carlos A.; Agudelo,Maria; Zuluaga,Andres F.; Vesga,Omar.
Abstract The current increment of invasive fungal infections and the availability of new broad-spectrum antifungal agents has increased the use of these agents by non-expert practitioners, without an impact on mortality. To improve efficacy while minimizing prescription errors and to reduce the high monetary cost to the health systems, the principles of pharmacokinetics (PK) and pharmacodynamics (PD) are necessary. A systematic review of the PD of antifungals agents was performed aiming at the practicing physician without expertise in this field. The initial section of this review focuses on the general concepts of antimicrobial PD. In vitro studies, fungal susceptibility and antifungal serum concentrations are related with different doses and dosing...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Antifungal agents; Pharmacology; Pharmacodynamics; Pharmacokinetics; Candidiasis; Aspergillosis.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702017000100079
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Antimicrobial and Phytochemical Analysis of Centella asiatica (L.) Nature Precedings
Ramar Perumal Samy; Vincent TK Chow.
In vitro antibacterial studies were carried out using hexane, dichloromethane and methanol extract of leaves of Centella asiatica by disc-diffusion method against gram-positive and gram-negative bacteria. The methanol and dichloromethane extracts of leaf showed a broad spectrum antibacterial activity. Thus the results substantiate the traditional usage of this plant as a medicine.
Tipo: Manuscript Palavras-chave: Pharmacology.
Ano: 2011 URL: http://precedings.nature.com/documents/6033/version/1
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Anti-obesity Effects of the Administration of Tournefortia paniculata Cham Extract on Wistar Rats Subjected to a Hypercaloric Diet BABT
Simão,Anderson Assaid; Ramos,Vinicius de Oliveira; Corrêa,Angelita Duarte; Sousa,Raimundo Vicente de; Marcussi,Silvana.
The aim of this study was to evaluate the therapeutic and toxicologic effects of the administration of the powered vegetable extract and aqueous extract of Tournefortia paniculata leaves on Wistar rats, subjected to a hypercaloric diet for 42 days. The rats were divided into five groups and were given the following treatments by gavage: T0 (control) - 1.0 mL water day-1; T1 - aqueous extract containing 14 mg phenolic compounds kg-1 rat day-1; T2 - 14 mg quercetin kg-1 rat day-1; T3 - 50 mg powered vegetable extract from T. paniculata leaves (PVE) kg-1 rat day-1 and T4 - 100 mg PVE kg-1 rat day-1. The treatments did not significantly alter the weight, but were effective in reducing liver fat, glucose and serum triglycerides. The treatment T1 reduced food...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Obesity; Medicinal plants; Pharmacology; Antioxidants; Genotoxicity.
Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132015000400494
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Antiviral activity of (E)-cinnamaldehyde revisited with nanoscience tools Nature Precedings
Arunava Goswami; Ayesha Rahman.
Contradictory results have been reported regarding the anti-viral activity of (E)-cinnamaldehyde, a major constituent (~69%) of cinnamon. Here we show that (E)-cinnamaldehyde alone has very low antiviral property contrary to the belief of commoners. There are early sporadic reports in ancient medicinal practices that fine sand was used for increasing the efficacy of antiviral drugs. Can we increase the efficacy of (E)-cinnamaldehyde marginally by using one of the major constituents of sand like silica? Yes, when nanosilica is used as a carrier during (E)-cinnamaldehyde administration, the antiviral efficacy of the resultant cocktail increases marginally. Therefore, (E)-cinnamaldehyde consumed for centuries in tribal therapy as well as in alternative...
Tipo: Manuscript Palavras-chave: Biotechnology; Pharmacology.
Ano: 2010 URL: http://precedings.nature.com/documents/5043/version/1
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Apoptotic gene expression in neuropathic pain Nature Precedings
Dario Siniscalco; Catia Giordano; Carlo Fuccio; Livio Luongo; Annalucia Migliozzi; Francesco Rossi; Sabatino Maione.
Pain initiated or caused by a primary lesion or dysfunction in the nervous system is defined as neuropathic pain. It results from direct injury to nerves in the peripheral or central nervous system and is associated with several clinical symptoms. Neuropathic pain treatment is extremely difficult, as it is a very complex disease, involving several molecular pathways. Excitatory or inhibitory pathways controlling neuropathic pain development show altered gene expression, caused by peripheral nerve injury.
This study used several experimental pain models to demonstrate the occurrence of programmed cell death in the centers controlling pain induction and maintenance, such as spinal cord and pre-frontal cortex. We combined behavioural,...
Tipo: Poster Palavras-chave: Pharmacology.
Ano: 2008 URL: http://precedings.nature.com/documents/1549/version/1
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Application of the Sensory Contact Model for Pharmacological Studies under Simulated Clinical Conditions Nature Precedings
Natalia N. Kudryavtseva; Damira F. Avgustinovich; Natalia P. Bondar; Michael V. Tenditnik; Irina L. Kovalenko.
The sensory contact model allows forming different psycho-pathological states (anxious depression, catalepsy, social withdrawal, pathological aggression, cognition disturbances, anhedonia, addictive states etc.) produced by repeated agonistic interactions in male mice and investigating the therapeutic and preventive properties of any drug as well as its efficiency under simulated clinical conditions. This approach can be useful for a better understanding of the drugs’ action in different stages of disease development in individuals. It is suggested that this behavioral approach and pharmacological designs may be applied for the screening of novel psychotropic drugs. 

Tipo: Manuscript Palavras-chave: Neuroscience; Pharmacology.
Ano: 2007 URL: http://precedings.nature.com/documents/1439/version/1
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Applications Of Microspectroscopy, Hyperspectral Chemical Imaging And Fluorescence Microscopy In Chemistry, Biochemistry, Biotechnology, Molecular And Cell Biology Nature Precedings
I. C. Baianu.
Chemical imaging is a technique for the simultaneous measurement of spectra (chemical information) and images or pictures (spatial information)^1,2^. The technique is most often applied to either solid or gel samples, and has applications in chemistry, biology^3-8^, medicine^9,10^, pharmacy^11^ (see also for example: Chemical Imaging Without Dyeing), food science, Food Physical Chemistry, Biotechnology^12,13^, Agriculture and industry. NIR, IR and Raman chemical imaging is also referred to as hyperspectral, spectroscopic, spectral or multi-spectral imaging (also see micro-spectroscopy). However, other ultra-sensitive and selective, chemical imaging techniques are also in use that involve either UV-visible or fluorescence microspectroscopy.
Tipo: Manuscript Palavras-chave: Biotechnology; Cancer; Chemistry; Developmental Biology; Genetics & Genomics; Molecular Cell Biology; Pharmacology; Bioinformatics; Plant Biology.
Ano: 2011 URL: http://precedings.nature.com/documents/6593/version/1
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Are plants with anti-cancer activity resistant to crown gall? : A test of hypothesis Nature Precedings
R Srirama; BT. Ramesha; G. Ravikanth; R. Uma Shaanker; KN Ganeshaiah.
The Crown gall tumour assay (CGTA) is one of several bench top bioassays recommended for the rapid screening of plants with anti-cancer activity. The rationale for the use of the bioassay is that the tumorogenic mechanism initiated in plant tissues by _Agrobacterium tumefaciens_ is in many ways similar to that of animals. Several plant species with anti-cancer activity have already been discovered using this bioassay. However till date no explicit test of an association between anti-cancer activity of plants and their resistance to crown gall formation has been demonstrated. Demonstration of an association could have exploratory potential when searching for plants with anti-cancer activity. In this paper, we determined whether or not a statistically...
Tipo: Manuscript Palavras-chave: Cancer; Pharmacology; Plant Biology.
Ano: 2007 URL: http://precedings.nature.com/documents/1456/version/1
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Assessing the pharmacodynamic profile of intravenous antibiotics against prevalent Gram-negative organisms collected in Colombia BJID
Villegas,Maria Virginia; Briceno,David Felipe; Ruiz,Sory Jamil; Furtado,Guilherme H; Nicolau,David P.
OBJECTIVES: This study was designed to simulate standard and optimized dosing regimens for intravenous antibiotics against contemporary populations of Escherichia coli, Klebsiella pneumoniae, Acinetobacter baumannii, and Pseudomonas aeruginosa using MIC distribution data to determine which of the tested carbapenem regimens provided the greatest opportunity for obtaining maximal pharmacodynamic (PD) activity. METHODS: The isolates studied were obtained from the COMPACT-COLOMBIA surveillance program conducted between February and November 2009. Antimicrobial susceptibility testing was conducted by broth microdilution method according to the CLSI guidelines. Doripenem, imipenem-cilastatin, and meropenem, were the modeled antibiotics. A 5,000 patient Monte...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Drug resistance; Bacterial; Gram-negative bacteria; Monte Carlo Method; Colombia; Pharmacology.
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702011000500001
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BBSRC Data Sharing Policy Nature Precedings
Amanda Collis; David McAllister; Michael Ball.
BBSRC recognizes the importance of contributing to the growing international efforts in data sharing. BBSRC is committed to getting the best value for the funds we invest and believes that making research data more readily available will reinforce open scientific inquiry and stimulate new investigations and analyses. BBSRC supports the view that data sharing should be led by the scientific community and driven by scientific need. It should also be cost effective and the data shared should be of the highest quality. Members of the community are expected and encouraged to practice and promote data sharing, determine standards and best practice, and create a scientific culture in which data sharing is embedded.
Tipo: Manuscript Palavras-chave: Biotechnology; Developmental Biology; Genetics & Genomics; Immunology; Microbiology; Molecular Cell Biology; Neuroscience; Pharmacology; Bioinformatics; Plant Biology; Evolutionary Biology; Data Standards.
Ano: 2011 URL: http://precedings.nature.com/documents/6015/version/1
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Beyond the fuzzy lock-and-key: spontaneous symmetry shifts and glycan/lectin logic gates Nature Precedings
Rodrick Wallace.
Changes in the molecular topology of glycan/lectin interaction may explain observed reaction punctuation driven by experimental gradients in reactant concentration. Adoption of a 'biological renormalization' perspective from statistical physics for the analysis of such phase transitions suggests, in marked contrast to conventional physical systems, a broad spectrum of possible universality class behaviors. This spectrum may, in typical perverse biological manner, be of central scientific interest. Generalization, via formalism abducted from coevolutionary theory, suggests that glycan/lectin molecular switches instantiate logic gates that may be as sophisticated as those characterizing basic neural process, if on a different scale.
Tipo: Manuscript Palavras-chave: Biotechnology; Immunology; Microbiology; Molecular Cell Biology; Pharmacology; Evolutionary Biology.
Ano: 2012 URL: http://precedings.nature.com/documents/6849/version/1
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Bioconversion of eugenol into food flavouring agent vanillin Nature Precedings
Suaib Luqman; Sudeep Tandon; Alok Somvanshi; Suchita Srivastava; Mahendra P. Darokar; Suman P. S. Khanuja.
Microorganisms have the ability to chemically modify a wide variety of organic compounds by a process referred to as biological or microbial transformation, or in general, bioconversion. The microbial cells and their catalytic machinery (enzymes) accept a wide array of complex molecules as substrates, yielding products with unparallel chiral (enantio-), positional (region-) and chemical (chemo-) selectivity through various biochemical reactions. The present study was formulated on the objective of the conversion of abundantly available phytomolecules eugenol into vanillin, a compound of industrial importance, using microorganisms Aspergillus flavus, Aspergillus niger and Pseudomonas aeruginosa. These microbes were found to be capable of converting eugenol...
Tipo: Poster Palavras-chave: Biotechnology; Microbiology; Molecular Cell Biology; Pharmacology.
Ano: 2012 URL: http://precedings.nature.com/documents/6926/version/1
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Biological Activities of Extracts from Sumac (Rhus spp.): A Review Nature Precedings
Sierra Rayne; Giuseppe Mazza.
Sumac is the common name for a genus (Rhus) that contains over 250 individual species of flowering plants in the family Anacardiaceae. These plants are found in temperate and tropical regions worldwide, often grow in areas of marginal agricultural capacity, and have a long history of use by indigenous peoples for medicinal and other uses. The research efforts on sumac extracts to date indicate a promising potential for this plant family to provide renewable bioproducts with the following reported desirable bioactivities: antifibrogenic, antifungal, antiinflammatory, antimalarial, antimicrobial, antimutagenic, antioxidant, antithrombin, antitumorigenic, antiviral, cytotoxic, hypoglycaemic, and leukopenic. As well, the bioactive components can be extracted...
Tipo: Manuscript Palavras-chave: Chemistry; Pharmacology; Plant Biology.
Ano: 2007 URL: http://precedings.nature.com/documents/631/version/1
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Biotechnology of polyketides: new breath of life for the novel antibiotic genetic pathways discovery through metagenomics BJM
Gomes,Elisângela Soares; Schuch,Viviane; Lemos,Eliana Gertrudes de Macedo.
The discovery of secondary metabolites produced by microorganisms (e.g., penicillin in 1928) and the beginning of their industrial application (1940) opened new doors to what has been the main medication source for the treatment of infectious diseases and tumors. In fact, approximately 80 years after the discovery of the first antibiotic compound, and despite all of the warnings about the failure of the "goose that laid the golden egg," the potential of this wealth is still inexorable: simply adjust the focus from "micro" to "nano", that means changing the look from microorganisms to nanograms of DNA. Then, the search for new drugs, driven by genetic engineering combined with metagenomic strategies, shows us a way to bypass the barriers imposed by...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Environmental samples; Pharmacology; PKSs; New drugs.
Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822013000400002
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Biotransformation of artemisinin mediated through fungal strains for obtaining derivatives with novel activities Nature Precedings
Suchita Srivastava; Suaib Luqman; Atiya Fatima; Mahendra P. Darokar; Arvind S. Negi; J K. Kumar; Karuna Shanker; Chandan S. Chanotiya; Sudeep Tandon; Suman P. S. Khanuja.
Artemisinin, a sesquiterpene lactone, is the active antimalarial constituent of Artemisia annua. Several fungal strains Saccharomyces cerevisiae, Aspergillus flavus, Aspergillus niger and Picchia pastoris were used to biotransform artemisinin. Among these strains, A. flavus was the only microorganism capable of transforming artemisinin to deoxyartemisinin in higher yields than the previous reports. The structure of deoxyartemisinin was elucidated by spectroscopy. Deoxyartemisinin showed antibacterial activity against Staphylococcus aureus, S. epidermidis and S. mutans at a minimum inhibitory concentration (MIC) of 1 mg/mL compared to artemisinin whose MIC was >2 mg/mL.
Tipo: Poster Palavras-chave: Biotechnology; Chemistry; Microbiology; Molecular Cell Biology; Pharmacology.
Ano: 2012 URL: http://precedings.nature.com/documents/6925/version/1
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Can Plant-Made Copper Chaperones Heal Early Alzheimer’s Disease? Nature Precedings
Bernd Kastenholz; Basil Horst; Jürgen Horst.
Commercially available medicinal plant extracts such as Ginkgo biloba leaf extract show no consistent pattern of clinical benefit for people with dementia or cognitive impairment, and have been suggested to be toxic to cells at higher doses. However, medicinal plants may contain other more efficient bioactive molecules apart from the well-known flavonoids and terpenoids. Therapeutic recombinant proteins, plant-made copper chaperone for superoxide dismutase (CCS) derived from Ginkgo biloba leaves, may establish and maintain physiologic Cu levels through restoration and modulation of biometal metabolism in organ systems of younger Alzheimer patients (> 50 years). Medications developed from plant-made copper chaperone proteins may delay progression...
Tipo: Manuscript Palavras-chave: Neuroscience; Pharmacology.
Ano: 2011 URL: http://precedings.nature.com/documents/5907/version/6
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