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Pharmaceutical Science

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https://www.readbyqxmd.com/read/28539677/fatigue-and-sleep-quality-in-rheumatoid-arthritis-patients-during-hospital-admission
#1
Paulina Szady, Grażyna Bączyk, Katarzyna Kozłowska
OBJECTIVES: Rheumatoid arthritis (RA) is a systemic disease of connective tissue characterised by chronic course with periods of exacerbation and remission. Even in the early stages of the disease patients report the occurrence of fatigue and sleep disorders. Reduced sleep quality and chronic fatigue are common among patients with rheumatoid arthritis. The aim of the research was to evaluate the severity of fatigue and sleep quality assessment among patients hospitalised with rheumatoid arthritis and to determine the relation between the level of symptoms of fatigue and sleep quality and variables such as: age, gender, disease duration, marital status, applied pharmacological treatment, and pain intensity...
2017: Reumatologia
https://www.readbyqxmd.com/read/28537584/asymmetric-silver-catalysed-intermolecular-bromotrifluoromethoxylation-of-alkenes-with-a-new-trifluoromethoxylation-reagent
#2
Shuo Guo, Fei Cong, Rui Guo, Liang Wang, Pingping Tang
Fluorinated organic compounds are becoming increasingly important in pharmaceuticals, agrochemicals and materials science. The introduction of trifluoromethoxy groups into new drugs and agrochemicals has attracted much attention due to their strongly electron-withdrawing nature and high lipophilicity. However, synthesis of trifluoromethoxylated organic molecules is difficult owing to the decomposition of trifluoromethoxide anion and β-fluoride elimination from transition-metal-trifluoromethoxide complexes, and no catalytic enantioselective trifluoromethoxylation reaction has been reported until now...
June 2017: Nature Chemistry
https://www.readbyqxmd.com/read/28534756/opportunities-for-data-science-in-the-pharmaceutical-industry-the-use-of-data-to-find-efficiencies-in-drug-development-can-t-come-too-soon
#3
Nirmal Keshava
By the numbers, 2016 was not a good year for the U.S. pharmaceutical industry. As of early December, only 19 new drugs had been approved by the Food and Drug Administration (FDA), fewer than half of those approved in 2015 and the lowest number since 2007. Further, the FDA approved only 61% of submissions in 2016, compared to 95% in 2015 [1]. And, among the largest companies, the return on investment for research and development (R&D) fell to 3.7% [2].
May 2017: IEEE Pulse
https://www.readbyqxmd.com/read/28534676/applications-of-raman-spectroscopy-in-biopharmaceutical-manufacturing-a-short-review
#4
Kevin Buckley, Alan G Ryder
The production of active pharmaceutical ingredients (APIs) is currently undergoing its biggest transformation in a century. The changes are based on the rapid and dramatic introduction of protein- and macromolecule-based drugs (collectively known as biopharmaceuticals) and can be traced back to the huge investment in biomedical science (in particular in genomics and proteomics) that has been ongoing since the 1970s. Biopharmaceuticals (or biologics) are manufactured using biological-expression systems (such as mammalian, bacterial, insect cells, etc...
June 2017: Applied Spectroscopy
https://www.readbyqxmd.com/read/28534207/construction-of-polyarylenes-with-various-structural-features-via-bergman-cyclization-polymerization
#5
REVIEW
Youfu Wang, Shudan Chen, Aiguo Hu
Synthetic polymer chemistry is a fundamental part of polymer science, and highly efficient polymerization reactions are essential for the synthesis of high-performance polymers. Development of new synthetic methods for emerging polymer science is of great importance in this regard. Bergman cyclization is a chemical process in which highly reactive aryl diradicals form from enediyne precursors, having a strong impact in a number of fields including pharmaceutics, synthetic chemistry, and materials science. Diradical intermediates stemming from enediynes can cause DNA cleavage under physiological conditions, leading to the strong cytotoxicity of many naturally occurring enediyne antibiotics...
June 2017: Topics in Current Chemistry (Journal)
https://www.readbyqxmd.com/read/28531987/electrospinning-of-thermoplastic-carboxymethyl-cellulose-poly-ethylene-oxide-nanofibers-for-use-in-drug-release-systems
#6
Akbar Esmaeili, Mahsa Haseli
Polymeric delivery systems using electrospun nanofibers have been developed for many applications, notably for drug delivery and tissue engineering in the healthcare industry. In this study, a nanofiber drug carrier was fabricated via two different electrospinning processes, blend and coaxial, using a new degradable thermoplastic carboxymethyl cellulose (TCMC) and poly(ethylene oxide) (PEO). The TCMC was synthesized by graft copolymerization with methyl acrylate. Tetracycline hydrochloride served as a drug model incorporated within these nanofibers and their performance as a drug-carrier scaffold was evaluated...
August 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28531319/improved-sperm-kinematics-in-semen-samples-collected-after-2-h-versus-4-7-days-of-ejaculation-abstinence
#7
H Alipour, G Van Der Horst, O B Christiansen, F Dardmeh, N Jørgensen, H I Nielsen, C Hnida
STUDY QUESTION: Does a short abstinence period of only 2 h yield spermatozoa with better motility characteristics than samples collected after 4-7 days? SUMMARY ANSWER: Despite lower semen volume, sperm concentration, total sperm counts and total motile counts, higher percentages of motile spermatozoa with higher velocity and progressiveness were detected in samples obtained after 2 h. WHAT IS KNOWN ALREADY: Most studies that have assessed the effect of abstinence periods on sperm motility parameters in men with a sperm concentration below 15 million/ml have detected a higher percentage of motile spermatozoa in samples obtained after short abstinence periods...
May 22, 2017: Human Reproduction
https://www.readbyqxmd.com/read/28530538/qualitative-estimation-of-drug-entrapment-efficiency-in-polymeric-nano-micelles-using-dpd
#8
Farzin Hadizadeh, Jamal Shamsara
BACKGROUND: Dissipative particle dynamics (DPD) is a simulation method that one of its applications is in the field of pharmaceutical science and drug delivery. OBJECTIVE: DPD is employed to study morphology and some other characteristics of polymeric nano-micelles. Two systems were considered in this study: system A which includes curcumin, Polycaprolactone (PCL), Polyethylene glycol (PEG) and water beads and system B which includes paclitaxel, Polylactic acid (PLA), PEG and water beads...
May 22, 2017: Pharmaceutical Nanotechnology
https://www.readbyqxmd.com/read/28520421/examining-the-feasibility-of-using-free-energy-perturbation-fep-in-predicting-protein-stability
#9
Melissa Coates Ford, Kerim Babaoglu
The importance of engineering protein stability is well known and has the potential to impact many fields ranging from pharmaceuticals to food sciences. Engineering proteins can be both a time consuming and expensive experimental process. The use of computation is a potential solution to mitigating some of the time and expenses required to engineer a protein. This process has been previously hindered by inaccurate force fields or energy equations and slow computational processors, however improved software and hardware have made this goal much more attainable...
May 18, 2017: Journal of Chemical Information and Modeling
https://www.readbyqxmd.com/read/28514939/antioxidant-properties-of-drugs-used-in-type-2-diabetes-management-could-they-contribute-to-confound-or-conceal-effects-of-antioxidant-therapy
#10
Siu Wai Choi, Cyrus K Ho
OBJECTIVES: This is a narrative review, investigating the antioxidant properties of drugs used in the management of diabetes, and discusses whether these antioxidant effects contribute to, confound, or conceal the effects of antioxidant therapy. METHODS: A systematic search for articles reporting trials, or observational studies on the antioxidant effect of drugs used in the treatment of diabetes in humans or animals was performed using Web of Science, PubMed, and Ovid...
May 17, 2017: Redox Report: Communications in Free Radical Research
https://www.readbyqxmd.com/read/28508939/-the-worlds-of-gods-in-medicine
#11
REVIEW
A Karenberg
BACKGROUND: A number of designations for diseases, medicines and human body structures derive from classical mythology. To date, these eponyms have not been systematically investigated. OBJECTIVES: This paper provides an overview of this fringe component of medical vocabulary, looks at the history of several terms and formulates hypotheses as to why such creative etymologies have come into being. MATERIALS AND METHODS: In addition to relevant texts on ancient mythology, a variety of medical textbooks from the early modern period were analyzed...
May 16, 2017: Zeitschrift Für Rheumatologie
https://www.readbyqxmd.com/read/28507772/clinically-significant-depressive-symptoms-and-sexual-behaviour-among-men-who-have-sex-with-men
#12
Ada R Miltz, Alison J Rodger, Janey Sewell, Andrew Speakman, Andrew N Phillips, Lorraine Sherr, Richard J Gilson, David Asboe, Nneka C Nwokolo, Amanda Clarke, Mark M Gompels, Sris Allan, Simon Collins, Fiona C Lampe
BACKGROUND: The relationship between depression and sexual behaviour among men who have sex with men (MSM) is poorly understood. AIMS: To investigate prevalence and correlates of depressive symptoms (Patient Health Questionnaire-9 score ≥10) and the relationship between depressive symptoms and sexual behaviour among MSM reporting recent sex. METHOD: The Attitudes to and Understanding of Risk of Acquisition of HIV (AURAH) is a cross-sectional study of UK genitourinary medicine clinic attendees without diagnosed HIV (2013-2014)...
May 2017: BJPsych Open
https://www.readbyqxmd.com/read/28505456/self-polymerization-of-dopamine-in-acidic-environments-without-oxygen
#13
Tung-Po Chen, Tianchi Liu, Tsan-Liang Su, Jun-Feng Liang
An alkaline environment and the presence of oxygen are essential requirements for dopamine polymerization. In this study, we are the first to demonstrate the self-polymerization of dopamine through plasma-activated water (PAW) under acidic environments (pH<5.5). Resulting poly(dopamine) (PDA) were characterized using Nanosizer, SEM, FTIR, UV-vis, and fluorescence spectrophotometers and proved to have similar physical and chemical properties to those polymerized under a basic condition except that the PDA particles formed in PAW were more stable and hardly aggregated at varied pHs...
May 15, 2017: Langmuir: the ACS Journal of Surfaces and Colloids
https://www.readbyqxmd.com/read/28503046/reflections-about-osteoarthritis-and-curcuma-longa
#14
REVIEW
Marina Cristina Akuri, Sandra Maria Barbalho, Raíssa Meira Val, Elen Landgraf Guiguer
Osteoarthritis (OA) is a chronic inflammatory degenerative process that affects joints such as the hands, hips, shoulders, feet, spine, and especially knees in millions of people worldwide. Some authors have shown that Curcuma longa components may exhibit benefic effects in the treatment of degenerative diseases as OA. This plant belongs to the family Zingiberaceae and it is popularly known as turmeric or saffron. This review intended to perform a retrospective search to identify studies involving humans and animal models...
January 2017: Pharmacognosy Reviews
https://www.readbyqxmd.com/read/28496268/effect-of-a-dedicated-pharmacy-student-summer-research-program-on-publication-rate
#15
Katharina Brandl, David Adler, Carolyn Kelly, Palmer Taylor, Brookie M Best
Objectives. This study investigated the impact of an optional 12-week summer research program on the publication outcomes and satisfaction with the required research projects of doctor of pharmacy (PharmD) students at the Skaggs School of Pharmacy and Pharmaceutical Sciences (SSPPS) at the University of California San Diego. Methods. PubMed and Google searches provided student publications, and satisfaction surveys submitted by students provided their perceptions of the research project value. Results. Of the studied cohort, the 130 students who fulfilled the requirement through the optional summer research program provided 61 full-text manuscripts and 113 abstracts...
April 2017: American Journal of Pharmaceutical Education
https://www.readbyqxmd.com/read/28495569/journal-of-pharmaceutical-sciences-notes-plasma-lipidomics-of-healthy-japanese-adults-reveals-gender-and-age-related-differences
#16
Keiko Maekawa, Kazuo Okemoto, Masaki Ishikawa, Rieko Tanaka, Yuji Kumagai, Yoshiro Saito
Lipid metabolites in the blood are expected to be biomarker candidates to reflect disease states and responses to therapeutic drugs. However, their profiles are influenced by subject background, which may lead to confounding results. This study aimed to evaluate whether age and gender affect lipid metabolite levels in the plasma of healthy Japanese adults. Comprehensive lipidomic analysis was performed using liquid chromatography-mass spectrometry for overnight-fasted volunteers consisting of four groups of 15 subjects each: young males (25-35 years old), elderly males (55-64 years old), young females (25-35 years old), and elderly females (55-65 years old)...
May 8, 2017: Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28487578/5%C3%AE-reductase-inhibitors-for-treatment-of-benign-prostatic-hyperplasia-a-systematic-review-and-meta-analysis
#17
REVIEW
Jennifer E J Jun, Angus Kinkade, Anthony C H Tung, Aaron M Tejani
BACKGROUND: Finasteride and dutasteride are competitive inhibitors of 5α-reductase enzymes and are commonly used to treat symptomatic benign prostatic hyperplasia (BPH). OBJECTIVE: To compare the efficacy and safety of finasteride and dutasteride in terms of clinically important outcomes. DATA SOURCES: A literature search was performed using the search terms "prostatic hyperplasia", "prostatic hypertrophy", "dutasteride", "finasteride", "quality of life", "adverse drug reaction", and "mortality"...
March 2017: Canadian Journal of Hospital Pharmacy
https://www.readbyqxmd.com/read/28486830/ethnomedicinal-uses-phytochemistry-and-pharmacological-aspects-of-the-genus-premna-a-review
#18
Roza Dianita, Ibrahim Jantan
CONTEXT: The genus Premna (Lamiaceae), distributed throughout tropical and subtropical Asia, Africa, Australia and the Pacific Islands, is used in folk medicine primarily to treat inflammation, immune-related diseases, stomach disorders, wound healing, and skin diseases. OBJECTIVES: This review exhaustively gathers available information on ethnopharmacological uses, phytochemistry, and bioactivity studies on more than 20 species of Premna and critically analyzes the reports to provide the perspectives and directions for future research for the plants as potential source of drug leads and pharmaceutical agents...
December 2017: Pharmaceutical Biology
https://www.readbyqxmd.com/read/28470763/membrane-protein-stoichiometry-studied-in-intact-mammalian-cells-using-liquid-phase-electron-microscopy
#19
N DE Jonge
Receptor membrane proteins in the plasma membranes of cells respond to extracellular chemical signals by conformational changes, spatial redistribution, and (re-)assembly into protein complexes, for example, into homodimers (pairs of the same protein type). The functional state of the proteins can be determined from information about how subunits are assembled into protein complexes. Stoichiometric information about the protein complex subunits, however, is generally not obtained from intact cells but from pooled material extracted from many cells, resulting in a lack of fundamental knowledge about the functioning of membrane proteins...
May 4, 2017: Journal of Microscopy
https://www.readbyqxmd.com/read/28462793/biosimilars-to-recombinant-human-fsh-medicines-comparable-efficacy-and-safety-to-the-original-biologic
#20
Fernando de Mora, Bart C J M Fauser
Two recombinant follicle-stimulating hormone (rFSH)-bearing similar biological medicines (biosimilars) have been authorized by the European Commission. Biosimilar is a regulatory concept alluding to the evidence-based high-standard comparability studies needed to demonstrate its equivalence to a reference original biologic. Because biosimilar development represents a shift from the long-lasting existing paradigms, a thorough understanding of the science behind it will contribute to helping prescribers make informed treatment choices...
April 10, 2017: Reproductive Biomedicine Online
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