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Agilent Technologies Extends Biopharma Portfolio with Advanced Mass Spec System

SANTA CLARA, Calif.--(BUSINESS WIRE)--

Agilent Technologies Inc. (NYSE:A) introduces the latest addition to its portfolio of solutions for biopharmaceutical labs: the Agilent 6545XT AdvanceBio LC/Q-TOF MS System.

Optimized to address analytical workflows commonly used in biopharma, the new LC/Q-TOF MS system combines high-performance liquid chromatography with robust quadrupole time-of-flight mass spectrometry and data-analysis tools. A research-grade system, the 6545XT is designed to deliver superior results to scientists seeking to characterize biomolecules that could be the basis for new therapeutics.

“Agilent is committed to providing complete workflow solutions to the biopharma industry that address critical areas for biotherapeutic development,” said Monty Benefiel, Agilent vice president and general manager of the company's Mass Spectrometry Division. “Agilent solutions built around the 6545XT enable scientists to characterize biomolecule structure and function more efficiently than ever, resulting in reduced time to market and improved drug efficacy.”

The 6545XT has also been optimized for use in profiling intact proteins, mapping peptides and identifying post-translational modifications.

Additionally, Agilent’s solutions for these types of workflows are further enhanced by the Agilent AdvanceBio LC column portfolio including the introduction today of a new column: the AdvanceBio Peptide Plus column. This column is designed for LC/MS peptide separations utilizing our unique superficially porous particle technology.

These new products complement and optimize Agilent’s existing biopharma portfolio, which includes products for sample preparation, separation, detection and analysis.

About Agilent Technologies

Agilent Technologies Inc. (NYSE: A), a global leader in life sciences, diagnostics and applied chemical markets, is the premier laboratory partner for a better world. Agilent works with customers in more than 100 countries, providing instruments, software, services and consumables for the entire laboratory workflow. The company generated revenues of $4.20 billion in fiscal 2016 and employs about 12,500 people worldwide. Information about Agilent is available at www.agilent.com.

View source version on businesswire.com: http://www.businesswire.com/news/home/20170307005935/en/

UNIAPAC Foundation Think Tank in Paris selects Renova Therapeutics CEO and Co-founder as …

PR Newswire

SAN DIEGO, March 7, 2017

SAN DIEGO, March 7, 2017 /PRNewswire-USNewswire/ -- Renova™ Therapeutics, a biotechnology company developing gene therapy treatments for congestive heart failure and type 2 diabetes, today announced that the company's CEO and Co-founder, Jack W. Reich, Ph.D., has been selected as a keynote speaker for the prestigious UNIAPAC Foundation Think Tank meeting on March 17, 2017, in Paris.

The aim of this annual meeting is to lead a candid and open debate among academics, business leaders and distinguished guests, to provide insights on the main socioeconomic challenges of the 21st century. The meeting brings together 24 high-level attendees and includes a full set of presentations and dialogue sessions.

A pioneer in the field, Dr. Reich will be speaking on the social, economic and healthcare delivery implications of gene therapy.

"I'm honored to engage on the topic of gene therapy with bright minds who are dedicated to finding solutions to some of the world's greatest challenges," says Dr. Reich. "Our mission at Renova Therapeutics – to create transformational therapies that treat the world's most prevalent diseases – fits closely with the goals of UNIAPAC and its foundation. We're focused on treating chronic diseases that have a debilitating impact on hundreds of millions of people worldwide – and doing so by potentially reversing the disease process, rather than treating symptoms. Diminishing these major threats to global health would have tremendous socioeconomic impact."

Founded in 1931, UNIAPAC is an ecumenical union that groups together Christian Business Leader associations in 40 countries in Europe, Latin America, Africa and Asia. UNIAPAC represents more than 30,000 active business executives working in various leading sectors of the world economy. The organization's goal is to promote a vision and deployment of Corporate Social Responsibility focused on the human person, with a view of bringing about change in business attitudes toward more responsible and sustainable economic, social and human progress.

The UNIAPAC Foundation was created in 2010 with the intent to actively assist UNIAPAC National Associations in their local initiatives and support their activities at an international level. The foundation is a key facilitator in UNIAPAC's continuous dialogue with all men and women of goodwill who are interested in ensuring the rightful place of the human person in the economy.

Dr. Reich will lead one of four panels at the foundation's think tank meeting.

About Renova Therapeutics
Renova Therapeutics is developing definitive, one-time gene therapies and peptide infusion treatments to restore the health of people suffering from chronic diseases. The first indications the company is pursuing are gene therapy treatments for congestive heart failure (CHF) and type 2 diabetes, two of the most common and devastating chronic diseases in the world. The company's lead product, RT-100, is a treatment that delivers a therapeutic gene directly to the heart during a routine outpatient procedure and has the potential to increase heart function in millions of patients with CHF. The company's product pipeline also includes a groundbreaking gene therapy in preclinical stage for sufferers of type 2 diabetes, as well as a peptide infusion therapy for the treatment of acute decompensated heart failure. Renova Therapeutics was founded in 2009 and is led by an experienced management team in biopharmaceuticals and gene therapy. For additional information about the company, please visit www.renovatherapeutics.com .

 

To view the original version on PR Newswire, visit:http://www.prnewswire.com/news-releases/uniapac-foundation-think-tank-in-paris-selects-renova-therapeutics-ceo-and-co-founder-as-keynote-speaker-for-annual-meeting-300418810.html

SOURCE Renova Therapeutics

PR Newswire
www.prnewswire.com

Last updated on: 07/03/2017

Allegro Ophthalmics Names Melvin Sarayba, MD, Vice President of Clinical Affairs

SAN JUAN CAPISTRANO, Calif.--(BUSINESS WIRE)--

Allegro Ophthalmics, LLC, a biotechnology company focused on the development of novel therapies to treat vitreoretinal diseases, today announced that Melvin Sarayba, MD, has joined the company as vice president of clinical affairs. In his new role, Dr. Sarayba is responsible for Allegro's US and international clinical program for Luminate®, which met its primary and secondary endpoints in the DEL MAR Phase 2b clinical trial for diabetic macular edema (DME), the company announced in October, 2016.

An ophthalmic surgeon with an extensive clinical research background and two decades of product development and commercialization experience, Dr. Sarayba has worked for multiple successful ophthalmic companies, including IntraLase, AMO, WaveTec, LenSx Lasers, Alcon Laboratories and ClarVista Medical. At LenSx, he served as vice president of clinical affairs leading the company’s efforts on ophthalmic medical device product development, product improvement, and new applications. Dr. Sarayba also has designed and led clinical trials at various stages of the life cycle. As the head of global medical affairs for the cataract franchise at Alcon, he was responsible for key clinical initiatives for the company’s entire cataract portfolio. Dr. Sarayba completed his fellowship training at the University of California, Irvine. He is a prolific innovator with 10 patents and has authored or co-authored numerous peer-reviewed publications.

"Melvin's history of successfully running pivotal clinical trials for innovative startup companies like IntraLase and LenSx and for respected industry leaders like Alcon and AMO make him a valuable addition to the Allegro team,” says Hampar Karageozian, MSc, MBA, co-founder and chief executive officer, Allegro Ophthalmics. “I am confident that Dr. Sarayba will be an enormous asset to Allegro and will continue to propel Luminate, which has thus far shown very promising efficacy and safety results in Phase 2 clinical trials across multiple indications, through trials and on to commercialization."

About Luminate

Luminate, a first-in-class integrin peptide therapy, treats vitreoretinal diseases by targeting integrin receptors involved in cell signaling and regulation and in the construction of new and aberrant blood vessels. By utilizing two mechanisms of action (vitreolysis and anti-angiogenesis), Luminate has been shown in clinical studies to date to effectively regress and inhibit new blood vessel formation, as well as reduce vascular leakage to maintain and restore vision. Currently in Phase 2 clinical trials for multiple indications, including diabetic macular edema (DME) and non-proliferative diabetic retinopathy (NPDR), Luminate is an investigational drug not approved by the FDA for commercial sale in the U.S. Allegro maintains commercial rights to Luminate in all territories outside of Japan, Korea and China.

About Allegro Ophthalmics, LLC

With more than 100 years of combined experience in ophthalmic drug discovery, development and manufacturing, Allegro Ophthalmics, LLC, is working to establish integrin peptide therapy as the next-generation pharmaceutical category for the treatment of vitreoretinal diseases. Allegro’s lead investigational drug, Luminate, is currently in Phase 2 studies and has the potential to significantly reduce the current burden of intravitreal injections and to be a viable option for patients with diabetic macular edema, diabetic retinopathy, wet age-related macular degeneration, and vitreomacular traction. By quickly, safely and cost-effectively bringing to market new and improved treatment options for leading causes of blindness, Allegro is committed to offering patients an improved quality of life sustained by self-sufficient, functional vision. For more information, visit www.allegroeye.com.

Luminate® is a registered trademark of Allegro Ophthalmics, LLC.

View source version on businesswire.com: http://www.businesswire.com/news/home/20170307005553/en/

 
 
 
 
Featured R&D 100 Award Winner: ZipChip Microfluidic Separations for Mass Spectrometry

ZipChip Microfluidic Separations for Mass Spectrometry, which won a 2016 R&D 100 award, allows for direct analysis of complex biological samples providing sample preparation, separation and direct electrospray for MS detection, all on an integrated microfluidic device. ZipChips are compatible with a broad range of analytes from small-molecule metabolites and amino acids, through peptides and intact proteins, antibodies and antibody drug conjugates.  ZipChip is deployed from fundamental academic research as well as in the biopharmaceutical industry from early-stage research through to monitoring of growth media and final biotherapeutics in production. With intact proteins and antibodies, ZipChip gives characterization of intact molecules in a near native state that is unique and not presently available with other MS-compatible techniques.

Each year for more than 50 years, R&D Magazine has honored the 100 best innovations in research and development. We are currently accepting applications for the 2017 R&D 100 Awards. Innovators with an exceptional product developed between January 1, 2016 and March 31, 2017 should apply. Submissions close April 14, 2017

For information on the 55th Annual R&D 100 Awards and to enter visit http://www.rd100conference.com

Aptamers Market Growth, Trends and Value Chain 2016-2026 by FMI

Aptamers are oligonucleotides or peptide molecules that bind to target lipid, protein, or nucleic acid molecules with a high specificity. Aptamers are generated rapidly and applied in the inhibition, specific detection, and characterization of proteins. Aptamers can be used as detection reagents, pharmaceutical leads, and functional proteomic levels with antibodies, small molecules, and other aptamers. Aptamers can be engineered to have higher affinity and specificity to large number of targets. Aptamers can be selected from pools of random-sequence oligonucleotides to bind a wide range of bio medically relevant proteins with affinities and specificities that are comparable to antibodies. Aptamers are versatile and cost effective which offer complementary or alternative solutions to the antibodies.Aptamers exhibit significant advantages relative to protein therapeutics in terms of size, synthetic accessibility and modification by medicinal chemistry. The effectiveness of aptamers and low manufacturing costs can bring treatment for diseases like HIV or AIDS to the poorest countries. Aptamers can be developed faster than antibodies, therefore diseases can be cured even faster.

Aptamers Market: Drivers and Restraints

Global Aptamers market is continue to witness positive growth owing to higher research and development activities and investments in pharmaceutical and biotechnological companies. Technological advancement and the patent expiration of systematic evolution of ligands by exponential enrichment technology (SELEX) will boost this market positively. With the advent of new technologies in aptamers market which brought cost to more economical level and higher efficiency of aptamers in binding to larger molecules compared to antibodies will help to bolster growth of aptamers market. Growing use of aptamers in drug discovery and disease treatment may impact this market positively over forecasted period. Apart from above factors, RNA aptamers have proven to be of high therapeutic and diagnostic value with recent FDA approval of the first aptamers drug and additional ones in the clinical pipelines eventually lead to growth of aptamers market . However, ethical issues in using aptamers, stringent regulations in use of aptamers and slow in reaching market place owing to regulatory hurdles may hamper the growth of this aptamers market over forecast period.

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Aptamers Market: Segmentation

Global Aptamers market has been segmented on the basis of type, application, end user and region.

Based on the type, the global aptamers market is segmented into the following:

  • Nucleic Acid Aptamers
    • DNA-Based Aptamers
    • RNA-Based Aptamers
    • XNA-Based Aptamers
  • Peptide Aptamers

Based on the application, the global aptamers market is segmented into the following:

  • Diagnostics
  • Therapeutics Development
  • Research and Development

Based on the end user, the global aptamers market is segmented into the following:

  • Bio-Pharmaceutical companies
  • Pharmaceutical Companies
  • Academic and Research centers
  • Contract Research Organization

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Aptamers Market: Overview

Global aptamers market is undergoing market changes due to the higher competition among key players and this in turn helped to higher investment and development of novel aptamers. With the advent of new technologies in the aptamers market which is expected to change the market dynamics over a given period of forecast. Aptamers in development mat change nucleic acid therapeutics in the near future. By application type, segments such as diagnostics and therapeutic development in the global aptamers market are expected to grow in positive traction owing to increased demand for aptamers in biomedical diagnosis, biomarker development and molecular imaging and disease treatment.

Aptamers Market: Region-wise Outlook

Geographically, Aptamers market is classified into regions viz. North America, Latin America, Western Europe, Eastern Europe, Asia-Pacific excluding Japan, Japan, Middle East and Africa. North America and Europe will remain key markets for Aptamers market. Europe region is expected to witness strong growth owing to presence of key players in the market. Asia Pacific is anticipated to register positive growth owing to increased opportunities in diagnostics and development of pharmaceuticals which are remain untapped in the aptamers market.

Aptamers Market: Key Players

The major players in aptamers market include AM Biotechnologies, LLC, Aptagen, LLC, Aptamer Sciences, Inc., Aptamer Solutions Ltd, Aptus Biotech S.L., Base Pair Biotechnologies, Inc., NeoVentures Biotechnology, SomaLogic Inc., TriLink BioTechnologies, Inc., and Vivonics, Inc.

Breakthrough Technology for Microwave Peptide Synthesis Significantly Lowers Solvent Usage

The Liberty Blue™ Microwave Peptide Synthesizer significantly alters the paradigm of peptide synthesis, enabling peptide chemists to make a 30-residue peptide in 2 hours.

The Liberty Blue technology allows for 4-minute cycle times and a 90% reduction in solvent usage compared to existing methods for making peptides.

The technology represents significant advances in hardware design, as well as remarkable improvements to the chemistry, resulting in greater speed and flexibility, better peptide purities and yields, and improved reliability.

The systems’ patent-pending Flex-AddTM Technology provides infinite volume variability with a high degree of accuracy and precision, allowing the Liberty Blue coverage of a wide scale range from 0.02 to 5 mmol, the broadest range of any line of research scale microwave peptide synthesizers.

Designed for maximum speed, efficiency, and ease-of-use, the Liberty Blue is available in a manual, automated, and high-throughput system configuration. The systems feature CEM’s patented technology for using microwave energy for both the coupling and deprotection steps of the synthesis, ensuring higher purities and yields faster than ever before.

The Liberty Blue technology, known as High-Efficiency Solid Phase Peptide Synthesis (HE-SPPS), was recently featured in Organic Letters1 and C&E News2.

Sources

1High-Efficiency Solid Phase Peptide Synthesis, Organic Letters, 2014, 16 (3), pp 940–943, DOI: 10.1021/ol4036825

2Faster and Cleaner Peptide Synthesis, C&E News, 2014, Feb. 10, p27

Advanced Accelerator Applications Announces Presentation of Quality of Life Findings from NETTER-1 Phase III Study at ENETS

SAINT-GENIS-POUILLY, France, March 06, 2017 (GLOBE NEWSWIRE) -- Advanced Accelerator Applications S.A. (NASDAQ:AAAP) (“AAA” or the “Company”), an international specialist in Molecular Nuclear Medicine (MNM), today announced that quality of life findings from the pivotal NETTER-1 Phase III study investigating the treatment of Lutetium Lu 177 Dotatate in patients with somatostatin receptor positive midgut neuroendocrine tumors (midgut NETs) will be presented at the 14th Annual Conference of the European Neuroendocrine Tumor Society (ENETS), March 8-10 in Barcelona, Spain.

The details of the presentations are as follows:

Abstract # 1676: NETTER-1 Phase III Trial: Recent Findings on Quality of Life in Patients with Midgut Neuroendocrine Tumors
Speaker: Jonathan Strosberg, MD, Associate Professor, Section Head, Neuroendocrine Tumor Program at Moffitt Cancer Center
Session Title: Clinical Abstracts (4B)
Session Date: March 9, 2017
Session Time: 14:15-14:25 Central European Time

About NETTER-1

NETTER-1 is the first Phase III multi-center, randomized, controlled trial evaluating Lutetium Lu 177 Dotatate in patients with inoperable, progressive, somatostatin receptor positive midgut NETs. 229 patients with Grade 1-2 metastatic midgut NETs (both functioning and not functioning) were randomized to receive Lutetium Lu 177 Dotatate 7.4 GBq every 8 weeks (x4 administrations), plus best supportive care (Octreotide LAR 30 mg for symptom control) versus Octreotide LAR 60 mg every 4 weeks. The primary endpoint was Progression Free Survival (PFS) per RECIST 1.1 criteria, with tumor response assessment performed by an independent blinded reading center every 12 weeks. Secondary endpoints included objective response rate, overall survival, safety, and health-related quality of life. Analysis of NETTER-1 PFS results showed the number of patients having disease progression or death was 23 in the Lutetium Lu 177 Dotatate arm and 68 in the Octreotide LAR 60 mg arm. Thus, the NETTER-1 study met its primary endpoint by demonstrating that treatment with Lutetium Lu 177 Dotatate was associated with a statistically significant and clinically meaningful risk reduction of 79% of disease progression or death versus Octreotide LAR 60 mg (hazard ratio 0.21, 95% CI: 0.13-0.33; p<0.0001).

About Lutetium Lu 177 Dotatate (Lutathera®)

Lutetium Lu 177 Dotatate (Lutathera®) is an investigational, Lu-177-labeled somatostatin analog peptide currently in development for the treatment of gastroenteropancreatic neuroendocrine tumors (GEP-NETs), including foregut, midgut, and hindgut neuroendocrine tumors in adults. Lutetium Lu 177 Dotatate belongs to an emerging form of treatments called Peptide Receptor Radionuclide Therapy (PRRT), which involves targeting neuroendocrine tumors with radiolabeled somatostatin analog peptides. This novel, investigational compound has received orphan drug designation from the European Medicines Agency (EMA) and the U.S. Food and Drug Administration (FDA). Currently, Lutetium Lu 177 Dotatate is administered on a compassionate use and named patient basis for the treatment of NETs and other tumors over-expressing somatostatin receptors in ten European countries and in the U.S. under an Expanded Access Program (EAP) for midgut NETs. New Drug Application and Marketing Authorization Application submissions to the FDA and EMA for Lutetium Lu 177 Dotatate are currently under review.

About Advanced Accelerator Applications

Advanced Accelerator Applications is an innovative radiopharmaceutical company that develops, produces and commercializes Molecular Nuclear Medicine products. AAA’s lead investigational therapeutic candidate, Lutetium Lu 177 Dotatate (Lutathera®), is a novel MNM compound that AAA is currently developing for the treatment of Neuroendocrine Tumors, a significant unmet medical need. Founded in 2002, AAA has its headquarters in Saint-Genis-Pouilly, France. AAA currently has 22 production and R&D facilities able to manufacture both diagnostics and therapeutic MNM products, and has 500 employees in 13 countries (France, Italy, UK, Germany, Switzerland, Spain, Poland, Portugal, The Netherlands, Belgium, Israel, U.S. and Canada). AAA reported sales of €88.6 million in 2015 (+27% vs. 2014) and sales of €81.3 million for the first 9 months of 2016 (+23% vs. 9 months 2015). AAA is listed on the Nasdaq Global Select Market under the ticker “AAAP”. For more information, please visit: www.adacap.com.

Cautionary Statement Regarding Forward-Looking Statements

This press release may contain forward-looking statements. All statements, other than statements of historical facts, contained in this press release, including statements regarding the Company's strategy, future operations, future financial position, future revenues, projected costs, prospects, plans and objectives of management, are forward-looking statements. The words "anticipate," "believe," "estimate," "expect," "intend," "may," "plan," "predict," "project," "target," "potential," "will," "would," "could," "should," "continue," and similar expressions are intended to identify forward-looking statements, although not all forward-looking statements contain these identifying words. Forward-looking statements reflect the Company's current expectation regarding future events. These forward-looking statements involve risks and uncertainties that may cause actual results, events or developments to be materially different from any future results, events or developments expressed or implied by such forward-looking statements. Such factors include, but are not limited to, changing market conditions, the successful and timely completion of clinical studies, the timing of our submission of applications for regulatory approvals, EMA, FDA and other regulatory approvals for our product candidates, the occurrence of side effects or serious adverse events caused by or associated with our products and product candidates; our ability to procure adequate quantities of necessary supplies and raw materials for Lutetium Lu 177 Dotatate and other chemical compounds acceptable for use in our manufacturing processes from our suppliers; our ability to organize timely and safe delivery of our products or product candidates by third parties; any problems with the manufacture, quality or performance of our products or product candidates; the rate and degree of market acceptance and the clinical utility of Lutetium Lu 177 Dotatate and our other products or product candidates; our estimates regarding the market opportunity for Lutetium Lu 177 Dotatate, our other product candidates and our existing products; our anticipation that we will generate higher sales as we diversify our products; our ability to implement our growth strategy including expansion in the U.S.; our ability to sustain and create additional sales, marketing and distribution capabilities; our intellectual property and licensing position; legislation or regulation in countries where we sell our products that affect product pricing, taxation, reimbursement, access or distribution channels; regulatory actions or litigations; and general economic, political, demographic and business conditions in Europe, the U.S. and elsewhere. Except as required by applicable securities laws, we undertake no obligation to publicly update or revise any forward-looking statements, whether as a result of new information, future events or otherwise.

Peptide Therapeutics Market Analysis Will Expand at a CAGR of 10% from 2015-2025

According to “Peptide Therapeutics Market: Global Industry Analysis and Opportunity Assessment, 2015-2025”, a latest report published by Future Market Insights (FMI), the global peptide therapeutics market is expected to increase at over 10% CAGR during 2015-2025.

According to the report, peptide therapeutics are gaining traction in the pharmaceutical industry, owing to their cost-effectiveness and efficacy in managing numerous disease indications.

Economic factors, such as government policies for start-up companies in emerging economies, increasing FDI, and increasing healthcare expenditure are also driving the use of peptides in therapeutics. Increasing prevalence of cardiovascular and metabolic disorders is expected to provide an impetus to R&D activities in using peptides as therapeutics.

 

Emergence of prominent pharmaceutical and biotech companies, high specificity of peptides leading, advanced and strong pipelines, and patent expiries are the other key factors driving the global peptide therapeutics market, according to FMI’s report.

“Revival of interest in peptides as potential drug candidates because of their low oral bioavailability has been a major factor fuelling growth of the global peptide therapeutics market. Lack of oral efficacy in peptide drug delivery has actually helped researchers to find innovative methods of peptide drug delivery. However, there is still low acceptance among end users; hence, creating awareness could open up opportunities in the market”, said FMI Analyst.

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Peptide therapeutics are used for treating prostrate, breast, ovarian and pancreatic cancers. Peptides that are antagonists or agonists of specific receptors in oncology are increasingly being tested at the preclinical stages for their efficacy in cancer treatment. These increasing number of oncology studies indicate that there is an enormous cancer patient pool available globally, which is creating a larger niche for cancer application types in the global peptide therapeutic market.

Increasing commercialisation costs and low oral bioavailability of peptide drugs can impede the demand for peptides during the forecast market.

On the basis of disease indication, the global peptide therapeutics market is segmented into cancer, cardiovascular, central nervous systems, metabolic disorders, infection, hematological disorders, gastrointestinal disorders, dermatology, respiratory disorders, and endocrinology. The cancer segment accounts for the highest market share currently and is expected to remain the leading segment in terms of value during the forecast period.

In terms of route of administration, parenteral route of administration is expected to hold more than half the global market share, while the oral route of administration is projected to expand at the highest CAGR in terms of value.

By drug type, generic drugs are expected to register an exceptional CAGR during the forecast period, owing to patent expiries of large number of branded drugs.

Region-wise, North America is the largest market, and will remain so during the forecast period as well. Markets in the Americas and Europe collectively accounted for over 75% revenue share of the global peptide therapeutics market in 2015.

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The market in MEA region is projected to exhibit above average CAGR, owing to increase in prevalence of metabolic disorders and increasing number of pharmaceuticals companies in the region.

Key market players covered in this report are AstraZeneca plc, Bachem Holding AG, CordenPharma International GmbH, Eli Lilly and Company, Ipsen S.A, Merck & Co., Inc., Novo Nordisk A/S, PolyPeptide Group and Teva Pharmaceutical Industries Ltd. These players are focusing on enhancing their global and regional presence through strategic mergers & acquisitions through expansion of operations.

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This release was published on openPR.

Peptide-containing nanofibers keep bacterial infections at bay

Researchers have developed a new infection-blocking material made of peptide-containing nanofibers that works against antibiotic-resistant bacteria and could one day be incorporated into wound dressings (ACS Infect. Dis. 2017, DOI: 10.1021/acsinfec​dis.6b00173). The approach targets bacterial quorum sensing—a mode of chemical communication used by bacteria to detect other bacteria. When they sense that enough of their kind are present, they can mount an infectious attack. Chemist Helen E. Blackwell of the University of Wisconsin, Madison, has developed peptides to block this quorum-sensing pathway, thereby preventing cells from attacking their host. Together with David M. Lynn and other Wisconsin colleagues, Blackwell electrospun one of these peptides into poly(lactide-co-glycolide) nanofibers. The researchers tested nanofiber mats against normal and deadly antibiotic-resistant strains of Staphylococcus aureus. By using a strain of S. aureus engineered to carry fluorescent reporter genes, the scientists found that the fibers with quorum-sensing inhibitors were able to block the bacteria from successful quorum sensing for up to two weeks. Moreover, when cultured in petri dishes with red blood cells, the treated bacterial cells did not rupture the blood cells, whereas untreated cells did. The presence of ruptured cells indicates that bacteria are using quorum sensing to coordinate an infection.

The Effects of Different Exercise Training Modalities on Plasma Proenkephalin Peptide F in Women

Publication date: Available online 3 March 2017
Source:Peptides
Author(s): William H. DuPont, William J. Kraemer, Bradley C. Nindl, Elaine C. Lee, Maren S. Fragala, Disa L. Hatfield, Lydia K. Caldwell, Emily M. Post, Matthew K. Beeler, Jeff S. Volek, Carl M. Maresh
Due to the important interactions of proenkephalin fragments (e.g., proenkephalin [107–140] Peptide F) to enhance activation of immune cells and potentially combat pain associated with exercise-induced muscle tissue damage, we examined the differential plasma responses of Peptide F to different exercise training programs. Participants were tested pre-training (T1), and after 8 weeks (T2) of training. Fifty-nine healthy women were matched and then randomly assigned to one of four groups: heavy resistance strength training (STR, n=18), high intensity endurance training (END, n=14), combined strength and endurance training (CMB, n=17), or control (CON, n=10). Blood was collected using a cannula inserted into a superficial vein in the antecubital fossa with samples collected at rest and immediately after an acute bout of 6 X 10 RM in a squat resistance exercise before training and after training. Prior to any training, no significant differences were observed for any of the groups before or after acute exercise. With training, significant (P≤0.95) elevations were observed with acute exercise in each of the exercise training groups and this effect was significantly greater in the CMB group. These data indicate that in untrained women exercise training will not change resting of plasma Peptide F concentrations but will result in significant increases in the immediate post-exercise responses. Such findings appear to indicate adrenal medullary adaptations opioid production significantly altered with exercise training.


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