Navigating the Regulatory Landscape of Marketing Omega-3 Supplements

Total Page:16

File Type:pdf, Size:1020Kb

Navigating the Regulatory Landscape of Marketing Omega-3 Supplements July 2013 US$39.00 SPECIAL REPORT Navigating the Regulatory Landscape of Marketing Omega-3 Supplements Given FDA’s reticence to establish an RDI for omega-3s, as well as its antiquated view of inflammation claims, companies are currently walking a nuanced tightrope to communicate the benefits of omega-3s to consumers while avoiding regulatory enforcement action for their product claims. by Todd Harrison and Erin Seder Navigating the Regulatory Landscape of Marketing Omega-3 Supplements by Todd Harrison and Erin Seder mega-3 fatty acid supplementation has a longstanding reputation of improving cardiovascular health, reducing overall inflammation, and O supporting cognitive health and eye function. According to a number of recent studies, it may also help reduce joint stiffness associated with rheumatoid arthritis, lower depression levels, support prenatal health, reduce the symptoms of Attention Deficit Hyperactivity Disorder (ADHD) in children, and protect against Alzheimer’s disease, dementia and, potentially, cancer. And, according to a market report published by Transparency Market Research, the global omega-3 ingredients demand is expected to cross US$4 billion in 2018, which is an estimated growth of 15 percent from 2013. Considering the significant amount of money and research invested, one would think the dietary supplement industry would have little difficulty navigating the regulatory landscape of marketing omega-3 supplements. However, given FDA’s reticence to establish an RDI for omega-3s, as well as its antiquated view of inflammation claims, companies are currently walking a nuanced tightrope to communicate the benefits of omega-3s to consumers while avoiding regulatory enforcement action for their product claims. Omega-3 Supplements: A Dense Regulatory Landscape While there is technically no regulatory preapproval or screening process for dietary supplements before they hit the market, FDA has the primary responsibility of overseeing permissible product claims. Among the most commonly used claims are structure/function claims, nutrient content claims and health claims. FDA’s regulation of these claims has literally bound the hands of the omega-3 supplement industry so tightly that consumers are not being told the full gamut of substantial health benefits provided by omega-3 fatty acid supplementation. Omega-3 Insights • Marketing Omega-3 Supplements 2 omega3insights.com The Structure/Function Claim In general, structure/function claims describe the role of a dietary supplement in the structure and function of human bodies, but the claims may not explicitly or implicitly claim to prevent, treat, mitigate, cure or diagnose a disease. These claims can describe the role of a particular nutrient or dietary ingredient intended to affect normal structure or function in humans. For example, a supplement may claim, “Omega-3 fatty acids help maintain healthy eye, brain and nerve cells,” but it may not claim to “support eye health to treat macular degeneration.” Structure/function claims can also characterize the action by which a nutrient or dietary ingredient maintains such structure or function, or describe a benefit related to a nutrient deficiency Structure/function disease (e.g., vitamin C and scurvy), so long as the statement comments on how prevalent the disease is in the United States. claims describe the General well-being claims are also considered permissible structure/ role of a dietary function claims. Technically, a 30-day post-market notification must be submitted to FDA notifying the agency of a structure/function supplement in the claim’s wording. In practice, however, the industry as a whole does not comply with this requirement, and FDA has generally not raised structure and function this issue in warning letters to companies objecting to whether a of human bodies, but claim is a permissible structure/function claim or an impermissible disease claim. We would note some companies that have filed the claims may not structure/function claims will then tout that FDA approves the claim when it does not receive a letter of no objection. Please note FDA is explicitly or implicitly not reviewing whether a claim is substantiated; rather, it will only claim to prevent, treat, send a letter if it believes the form of the claim (i.e., is it a permissible structure/function claim) is an impermissible disease claim. FDA has mitigate, cure or generally let FTC deal with issues related to claims substantiation. Thus, those companies stating their claims are approved by FDA are diagnose a disease. making a false and misleading claim in and of itself. Nutrient Content Claims and Health Claims FDA’s notification process allows manufacturers and distributors to use health claims or nutrient content claims in dietary supplement labeling if the claims are based on current, published, authoritative statements from certain federal scientific bodies—and FDA does not object to the claims within 120 days of receipt of the notification. Claims authorized under the notification process may be used until FDA issues a regulation prohibiting or modifying the claim, FDA issues a regulation finding the statutory notification requirements have not been met, or a district court determines the statutory notification requirements have not been met. Omega-3 Insights • Marketing Omega-3 Supplements 3 omega3insights.com Nutrient content claims characterize the level of nutrients in a product (e.g., “low fat,” “low sodium,” “high protein,” etc.). Generally, nutrient content claims not explicitly authorized by FDA, either by regulation or petition, are prohibited. Because FDA has been remiss to assign an RDI for omega-3 fatty acids, dietary supplement companies have been limited—they may make nutrient content claims so long as the claim specifies only the amount of the omega-3s per serving and does not implicitly characterize the level of the nutrient in the product. For example, the claim “x grams of omega-3 fatty acids” is a permissible nutrient content claim, while “potent source of omega-3 fatty acids” is not. Further, when using the words “contains” or “provides” for nutrients without RDIs, such as omega-3 fatty acids, the specific amount of the nutrient must be stated. Consequently, the claim “contains x grams of omega-fatty acids per serving” or “provides x grams of omega-3s” is permitted. On the other hand, claims The claim “x grams of such as “contains omega-3 fatty acids” and “provides omega-3 fatty acids” are not. omega-3 fatty acids” Befuddling the industry’s understanding of permissible omega-3 is a permissible claims further was FDA’s 2007 issuance of a proposed rule prohibiting the use of most of the then-permissible nutrient content nutrient content claims for omega-3s alpha linolenic acid (ALA), eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA). At the time, omega-3 claim, while “potent nutrient content claims were lawfully on the market because FDA source of omega-3 had not objected to three notifications submitted between 2004 and 2006. The notifications proposed “high,” “good source” and fatty acids” is not. “more” claims for ALA, and “high” claims for DHA and EPA. In its 2007 proposed rule, FDA asserted that the nutrient content claims for DHA and EPA that had been submitted in notifications were not based on an authoritative statement that identified a nutrient level to which the claims referred. Therefore, such claims lacked an adequate scientific basis—and the claimed nutrient levels could result in consumer confusion. FDA did, however, leave some nutrient content claims for ALA alone, depending on the amount per product. Six years later, the proposed rule remains just that, proposed. Qualified Health Claims Health claims discuss the relationship between a nutrient and a disease or disease condition. The claim language, which is specifically approved by FDA and based on significant scientific agreement, is set in stone and may not be changed. Qualified health claims are based on less than scientific agreement, but the claim language discloses the limitations of evidence in support of the claimed relationship. Omega-3 Insights • Marketing Omega-3 Supplements 4 omega3insights.com In September 2004, FDA published a qualified health claim for reduced risk of coronary heart disease in conventional foods that contain EPA and DHA omega-3 fatty acids. Still in effect, the claim states: “Supportive but not conclusive research shows that consumption of EPA and DHA omega-3 fatty acids may reduce the risk of coronary heart disease. One serving of [name of food] provides [x] grams of EPA and DHA omega-3 fatty acids. [See nutrition information for total fat, saturated fat and cholesterol content.]” To make the omega-3 qualified health claim, the product must meet the “low saturated fat” and “low cholesterol” criteria, and the food must contain at least 10 percent of the Daily Value of vitamin A, vitamin C, iron, calcium, protein or dietary fiber, prior to any nutrient addition. Specified levels of total fat, sodium, What qualifies as cholesterol or saturated fats can also disqualify foods. Moreover, “competent and reliable FDA requires dietary supplements not recommend or suggest in their labeling a daily intake exceeding 2 g of EPA and DHA. scientific evidence”? Claim Substantiation: Although FTC has What You Don’t Know Can Hurt You published a definition of All advertising claims must be truthful and not misleading, plus supported by competent and reliable scientific evidence. So, what the phrase, it remains qualifies as “competent and reliable scientific evidence”? Although FTC has published a definition of the phrase, it remains anything but clear. anything but clear. FTC defines competent and reliable scientific evidence as tests, analyses, research, studies or other evidence based on the expertise of professionals in the relevant area, that have been conducted and evaluated in an objective manner by persons qualified to do so, using procedures generally accepted in the profession to yield accurate and reliable results. As indicated in several recent consent decrees, the definition may include at least two adequate and well-controlled human clinical studies of the product or its substantial equivalent.
Recommended publications
  • Omega-3 Fatty Acids As First-Line Treatment in Paediatric Depression
    Se Clinical Study Protocol OMEGA-3 FATTY ACIDS AS FIRST-LINE TREATMENT IN PAEDIATRIC DEPRESSION. A phase III, 36-week, multi-centre, double-blind, placebo-controlled randomized superiority Study. The Omega-3-pMDD Study Study Type: Intervention with Investigational Medicinal Product (IMP) Study Categorisation: Clinical Trial with IMP Category C Study Registration: Swiss Federal Complementary Database Clinicaltrials.gov Study Identifier: SNF 33IC30_166826 Sponsor, Sponsor- Gregor Berger Investigator and Principal Investigator: Department of Child and Adolescent Psychiatry University Hospital of Psychiatry University of Zurich Neumünsterallee 9 Omega-3-pMDD, Version 3 of 13.07.2017 Page 1 of 108 CH 8032 Zürich Switzerland Phone: +41 43 499 26 71 Mobile: +41 76 464 61 54 E-Mail: [email protected] Investigational Product: Omega-3 fatty acids (1000mg EPA / 500mg DHA in > in 13 years old and 500mg EPA / 250mg DHA in < in 13 years old) Protocol Version and Version3 of 13..07.2017 Date: CONFIDENTIAL The information contained in this document is confidential and the property of the Department of Child and Adolescent Psychiatry of the University of Zurich. The information may not - in full or in part - be transmitted, reproduced, published, or disclosed to others than the applicable Independent Ethics Committee(s) and Competent Authority(ies) without prior written authorization from the Department of Child and Adolescent Psychiatry of the University of Zurich, except to the extent necessary to obtain informed consent from those participants who will participate in the study. Omega-3-pMDD, Version 3 of 13.07.2017 Page 2 of 108 SIGNATURE PAGES Study number Swiss Federal Complementary Database Study Title Omega-3 fatty acids as first-line treatment in Paediatric Depression.
    [Show full text]
  • Frequencies Between Serial Killer Typology And
    FREQUENCIES BETWEEN SERIAL KILLER TYPOLOGY AND THEORIZED ETIOLOGICAL FACTORS A dissertation presented to the faculty of ANTIOCH UNIVERSITY SANTA BARBARA in partial fulfillment of the requirements for the degree of DOCTOR OF PSYCHOLOGY in CLINICAL PSYCHOLOGY By Leryn Rose-Doggett Messori March 2016 FREQUENCIES BETWEEN SERIAL KILLER TYPOLOGY AND THEORIZED ETIOLOGICAL FACTORS This dissertation, by Leryn Rose-Doggett Messori, has been approved by the committee members signed below who recommend that it be accepted by the faculty of Antioch University Santa Barbara in partial fulfillment of requirements for the degree of DOCTOR OF PSYCHOLOGY Dissertation Committee: _______________________________ Ron Pilato, Psy.D. Chairperson _______________________________ Brett Kia-Keating, Ed.D. Second Faculty _______________________________ Maxann Shwartz, Ph.D. External Expert ii © Copyright by Leryn Rose-Doggett Messori, 2016 All Rights Reserved iii ABSTRACT FREQUENCIES BETWEEN SERIAL KILLER TYPOLOGY AND THEORIZED ETIOLOGICAL FACTORS LERYN ROSE-DOGGETT MESSORI Antioch University Santa Barbara Santa Barbara, CA This study examined the association between serial killer typologies and previously proposed etiological factors within serial killer case histories. Stratified sampling based on race and gender was used to identify thirty-six serial killers for this study. The percentage of serial killers within each race and gender category included in the study was taken from current serial killer demographic statistics between 1950 and 2010. Detailed data
    [Show full text]
  • The Omega Course
    The Omega Course A six-session course designed to help older people to face up to the challenges ageing. With Bible-based teaching and questions to encourage debate and discussion. Written by Peter Sanderson Adapted by Lesley Bell From an idea suggested by Don Blevin. O ehalf of “t. Pauls Churh, Kigsto Hill. Free to use. INTRODUCTION: The aims of the course (for course leaders). People are living longer. This fact presents social, economic and political challenges to both society and government. What about the Church? How do we support older people in the church family? How can we help them face the many issues that longevity brings? What part can they play in serving the church? Are they an under-used resource? What about people who are not practicing Christians? How do they approach old age and dying? How do we share the good news of Jesus with them? We recognise the invaluable work done by Evergreens* and the way the church seeks to accept and empower its Senior Citizens in many ways. But some are looking for more teaching and discussion on this matter so that they can live well and, when the time comes, die well! The Alpha Course has been inspirational in bringing many to the beginning of a walk of faith. Because of Alpha, millions world-wide have begun to follow Jesus. But we want to explore, through the Omega Course, ways to help people end their lives in a faith-filled way. A course for both Christians and non- believers. The Bible raises the issue of old age.
    [Show full text]
  • Senior Softball World Championships 2020 St
    Senior Softball World Championships 2020 St. George, Utah September 17 - 19, 2020 Rev. 08/28/2020 Men's 60+ Major Plus Division • 4 Teams Win Loss 3 0 1 LPC 60's/Dudley (CA) 122Omega IT Services, LLC (VA) 0 3 3 Samurai (CA) 2 1 4 Texas Crush Sixties Thursday • September 17, 2020 • The Canyons Softball Complex • St. George Field address ► 1890 West 2000 North - St George, UT 84770 Time # Runs Team Name Field # Runs Team Name 9:30 AM 317 Samurai (CA) 2132 LPC 60's/Dudley (CA) 11:00 AM 220 Omega IT Services, LLC (VA) 2426 Texas Crush Sixties 12:30 PM 423 Texas Crush Sixties 23 7 Samurai (CA) USA NATIONAL CHAMPIONSHIP GAME • LPC 60's/Dudley (West) vs. Omega IT Services, LLC (East) 2:00 PM 124 LPC 60's/Dudley (CA) 22 8 Omega IT Services, LLC (VA) Friday • September 18, 2020 • The Canyons Softball Complex • St. George Time # Runs Team Name Field # Runs Team Name 12:30 PM 226 Omega IT Services, LLC (VA) 6311 Samurai (CA) 12:30 PM 130 LPC 60's/Dudley (CA) 7429 Texas Crush Sixties Seeding for 60-Major Plus Double Elimination bracket commencing Friday afternoon • See bracket for details Format: Full (3-game) Round Robin to seed 60-Major+ Double Elimination bracket Home Runs - Major+ = 9 per team per game, Outs NOTE SSUSA Official Rulebook §9.5 (Retrieving Home Run Balls) will be strictly enforced. Pitch Count - All batters start with 1-1 count (WITH courtesy foul) per SSUSA Rulebook §6.2 (Pitch Count) Run Rules - 7 runs per ½ inning at bat (except open inning) Time Limits - RR = 65 + open inn.
    [Show full text]
  • The Walking Dead,” Which Starts Its Final We Are Covid-19 Safe-Practice Compliant Season Sunday on AMC
    Las Cruces Transportation August 20 - 26, 2021 YOUR RIDE. YOUR WAY. Las Cruces Shuttle – Taxi Charter – Courier Veteran Owned and Operated Since 1985. Jeffrey Dean Morgan Call us to make is among the stars of a reservation today! “The Walking Dead,” which starts its final We are Covid-19 Safe-Practice Compliant season Sunday on AMC. Call us at 800-288-1784 or for more details 2 x 5.5” ad visit www.lascrucesshuttle.com PHARMACY Providing local, full-service pharmacy needs for all types of facilities. • Assisted Living • Hospice • Long-term care • DD Waiver • Skilled Nursing and more Life for ‘The Walking Dead’ is Call us today! 575-288-1412 Ask your provider if they utilize the many benefits of XR Innovations, such as: Blister or multi-dose packaging, OTC’s & FREE Delivery. almost up as Season 11 starts Learn more about what we do at www.rxinnovationslc.net2 x 4” ad 2 Your Bulletin TV & Entertainment pullout section August 20 - 26, 2021 What’s Available NOW On “Movie: We Broke Up” “Movie: The Virtuoso” “Movie: Vacation Friends” “Movie: Four Good Days” From director Jeff Rosenberg (“Hacks,” Anson Mount (“Hell on Wheels”) heads a From director Clay Tarver (“Silicon Glenn Close reunited with her “Albert “Relative Obscurity”) comes this 2021 talented cast in this 2021 actioner that casts Valley”) comes this comedy movie about Nobbs” director Rodrigo Garcia for this comedy about Lori and Doug (Aya Cash, him as a professional assassin who grapples a straight-laced couple who let loose on a 2020 drama that casts her as Deb, a mother “You’re the Worst,” and William Jackson with his conscience and an assortment of week of uninhibited fun and debauchery who must help her addict daughter Molly Harper, “The Good Place”), who break up enemies as he tries to complete his latest after befriending a thrill-seeking couple (Mila Kunis, “Black Swan”) through four days before her sister’s wedding but decide job.
    [Show full text]
  • Alpha Kappa Alpha Sorority, Incorporated Lambda Epsilon Omega Chapter
    Alpha Kappa Alpha Sorority, Incorporated Lambda Epsilon Omega Chapter Volume 6, Issue 5 May 2019 The Basileus Message “There is something about women coming together and supporting one another that nourishes the soul on a very deep level……. Greetings Sorors, active participants in our national targets. And most important showing up for each other in a consistent, As African American women the possibilities for positive and productive way. The Lambda Epsilon success are endless. Women issues have become the Omega Soror adds value to every room she walks in hot topic……the Me Too movement has brought the …..every situation she is placed in….she leaves it inequities women face front and center. Many would better than when she arrived! argue that universal women issues to a great degree do not impact the African American women, our issues are different…there may be some truth to that statement. However, we should seize every opportunity to share our stories. Women are standing up for what we believe and fighting for the rights of our sister friends. Sisters are coming together, supporting each other and having our say. Alpha Kappa Alpha women are leaders. We are front and center in the lives of families, friends and our communities. We are thinkers and act on what can be done to make this world a better place. As a Soror, the focus should be what can we do to make our sorority and chapter better. This could mean reaching out to a Soror “Just Because” no special reason. A brief call or card will exemplify empathy and compassion.
    [Show full text]
  • Mid-Spring 2015 Newsletter.Pdf
    February 2015 Kappa Omega Mid-Semester Spring Newsletter Looking Toward the Future As Kappa Omega quickly Dates”. Motivation to attend approaches its second events is at an all-time high with anniversary since colonization, Sigma Kappa, one of eight the chapter looks forward to sororities, comprising creating its own traditions as approximately 25% of women well as solidifying its presence (about 50 girls) in attendance at on campus. After attending the the most recent Panhellenic Regional Leadership meeting. Over the past two Conference in Old years the chapter has worked Greenwhich, Connecticut, hard to show such a presence, Executive Council came back and with a new sorority to Boston with a number of colonizing in the spring of 2016, exciting ideas contributed by we are proud to be supportive of various chapters across the the Panhellenic community. northeast. Thus far, members Looking toward the future, we of Kappa Omega have shown are excited to show even more enthusiasm for newly created involvement at Northeastern activities and incentives such University through participation as “Badge Attire of the Week” in various events that extend and sisterhood “Blind beyond the Greek community. Shatter Your Stigmas Philanthropy As discussed at the Regional Leadership Convention As Ultra Violet quickly approaches, our Vice in January, Kappa Omega strives to not only be active President of Philanthropic Services, Victoria among the Greek community but within the Liceaga, is working overtime to raise both money Northeastern community as well. On January 21st, and awareness for our national philanthropies. In Sigma Kappa and the National Residence Hall Honor February, she arranged for a speaker from the Society partnered together during their Give 5 week.
    [Show full text]
  • Effects of Ω-3 Fatty Acid Supplementation in Patients With
    ANTICANCER RESEARCH 38 : 2369-2375 (2018) doi:10.21873/anticanres.12485 Effects of ω-3 Fatty Acid Supplementation in Patients with Bile Duct or Pancreatic Cancer Undergoing Chemotherapy KYOHEI ABE, TADASHI UWAGAWA, KOICHIRO HARUKI, YUKI TAKANO, SHINJI ONDA, TARO SAKAMOTO, TAKESHI GOCHO and KATSUHIKO YANAGA Department of Surgery, The Jikei University School of Medicine, Tokyo, Japan Abstract. Background/Aim: Omega-3 fatty acids may in turn results in the deterioration of physical function (9). improve cancer cachexia, but only in patients with pancreatic Skeletal muscle mass is also directly linked to a patient’s and bile duct cancer. Patients with pancreatic cancer activities of daily living and quality of life. Patients with commonly suffer from exocrine pancreatic insufficiency, and advanced gastrointestinal cancer often require cytotoxic the ingestion of digestive enzyme supplements may improve chemotherapy. Many patients with pancreatic and biliary absorption. Patients and Methods: Racol ®, an enteral cancer suffer from nutritional instability due to the anatomical nutrient formulated with omega-3 fatty acids, was and pathological peculiarities of these diseases. According to administered to patients with unresectable pancreatic and bile a recent study, reduced skeletal muscle mass is an indicator duct cancer. The skeletal muscle mass and blood test data of cancer cachexia as well as poor vital prognosis (10). were taken pre-administration and at 4 and 8 weeks after. Omega-3 fatty acids increase the levels of leukotriene and Patients with pancreatic cancer were given the digestive prostaglandin while suppressing the production of inflammatory enzyme supplement LipaCreon ® from the fifth week after the cytokines [interleukin-6 (IL6), IL8, etc.
    [Show full text]
  • Still Beating Strong
    [Heart Health] Vol. 17 No. 10 October 2012 Still Beating Strong By Steve Myers, Senior Editor A great deal is asked of the heart, both abstractly and physically. A mere pump, the heart helps push nutrient- and oxygen-rich blood throughout the body and performs this primary task faithfully and rhythmically for decades. It is the very definition of a loyal worker. However, its efficiency, consistency and longevity rely on a healthy cardiovascular system, and this is where people can run into problems over time. Aside from some genetically linked structural and functional issues, the heart is a happy, healthy pumper as long as the blood is flowing freely throughout the body's network of veins and arteries. Any number of situations along this vascular journey can reduce blood flow to the heart and result in heart damage or death. Unfortunately, such problems are common. Heart disease is the leading cause of death in the United States, despite a recent decline in heart-related deaths—cardiovascular disease (CVD) death rates declined 31 percent from 1998 to 2008.1 Still, about every 25 seconds, someone has a coronary event, and one person dies of a coronary event each minute, according to the American Heart Association (AHA). To put the disease prevalence in simple prospective, AHA has reported more than one in three adults has some form of CVD. The problem isn't just American. "CVD kills more people worldwide than any other disease," said Stephen Moon, CEO, Provexis and Science in Sport. "Indeed, experts estimate that by the year 2020, nearly 40 percent of all deaths worldwide will be due to CVD, more than twice the percentage of deaths from cancer." The reason why heart disease is so prevalent is the same reason why the heart health product market is huge and still expanding.
    [Show full text]
  • Welcome to Marquette University's Admitted Student Day!
    Welcome to Marquette University’s Admitted Student Day! We are thrilled that you are with us today on campus! We hope that your visit will give you a good sense of who we are at Marquette and the opportunities that will be available to you. Our students are what truly make Marquette great, and you’re going to get to meet a lot of them today. We will make sure that all of your questions are answered, but it’s also important to relax, smile, laugh, and have some fun. Look up from the program, look around, and start to see yourself at Marquette. Sunday,V April 8 10:00 am - CAMPUS TOURS 11:00 am AMU 2nd floor Offered continuously during this hour (you can indicate interest in a tour on your registration form) Continuous sessions 11:00 am - REGISTRATION & LUNCH Light Refreshments 12:00 pm Alumni Memorial Union (AMU) 2nd floor (ground level entering from the west, up 1 floor entering from the east) Alumni Memorial Union (AMU), Marquette Place (61) Come at any time to check-in and enjoy lunch in Marquette Place. 8:30 a.m. – 10 a.m. AND 11:30 a.m. – 2:30 p.m. 12:00 - WELCOME ADDRESS 12:30 pm AMU Ballrooms, 3rd floor Campus Tours AMU, First-floor Lobby (61) Brian Troyer - Dean of Admissions Take a 30-minute tour with one of our famous student tour guides. Kate Bracciano - Assistant Director of Visit Programs 9 a.m. – 2:30 p.m. 1:30 - ACADEMIC SESSIONS Residence Hall Tours 2:30 pm Learn more about the academic college that you will be joining at Marquette.
    [Show full text]
  • Force Assessment in Multicellular Cardiac Preparations in Mice
    2.4.$Force$assessment$in$multicellular$cardiac$preparations$in$mice$ $ Author:(Paul(M.L.(Janssen( $ A.$OBJECTIVE$ This%protocol%describes%the%assessment%of%contractile%strength%in%isolated% multicellular%cardiac%preparations.% % B.$CAUTIONS$ •% Myocardial%multicellular%preparations%are%very%easily%damaged.%It%will% typically%take%several%months%of%daily%practice%before%publication<quality% results%can%be%obtained.%%It%takes%fine<tuned%micro<dissection%skills%that%not% everyone%can%master.% •% Good%quality%preparations%can%never%be%obtained%by%cutting%larger% muscles.%%Any%cutting%in%multicellular%tissue%will%cause%damage%that% typically%travels%200<250%µm%into%the%preparation.16%%Only%free%running% trabeculae%or%small%and%whole%papillary%muscles%will%render%unambiguous% results.% •% Some%hearts,%especially%some%murine%strains,%simply%will%not%have%a% suitably%sized%muscle.%%C57%mice%typically%have%less%suitable%trabeculae% than%FVBN%or%SV129%mice.14% •% The%attachment%of%the%muscle%to%the%force<transducer%and%length% displacement%device%is%critical%to%a%quality%outcome.%%Intact%muscles%should% never%be%sutured%or%glued%to%attach.% •% Only%with%a%binocular%microscope%and%suitable%micro<dissection%tools%can% sufficiently%quality%muscle%be%obtained.% •% Even%a%poorly%dissected%muscle,%provided%a%few%cells%are%still%alive,%will% show%some%force%development.%So%it%is%important%to%use%a%nicely%dissected% muscle.%% •% Force%development%must%always%be%related%to%cross<sectional%area%as%a% quality%measure.% % C.$MATERIALS$ •% Binocular%microscope:%It%is%critical%to%view%the%to<be<dissected%muscles%in%
    [Show full text]
  • 6 Pm 6:30 7 Pm 7:30 8 Pm 8:30 9 Pm 9:30 10 Pm
    EC DT DN 6 PM 6:30 7 PM 7:30 8 PM 8:30 9 PM 9:30 10 PM 10:30 11 PM 11:30 2 - - WHWC Inside Balmoral (Part 2 of 3) Victoria on Masterpiece Victoria on Masterpiece (N) Margaret-Rebel Antiques Roadshow (TVG) Austin City Limits (HD) The Simp- Bob’s Burg- The Simp- Bob’s Burg- Family Guy Family Guy Fox25/48 Hidden His- Graham (:35) The Big (:05) TMZ (Joined in Prog- 3 - 25 WEUX sons (HD) ers (HD) sons (HD) ers (HD) “Trans-Fat” (HD) News at 9 tory: Black Bensinger Bang Theory ress) (TVPG) (N) (HD) FOX-48 - - - WCCO-4 60 Minutes (N) (HD) God Friended Me (HD) NCIS: Los Angeles (HD) Madam Secretary (HD) News News Joel Osteen Turning Point - - - WSTP-5 Funniest Home Videos Star Wars: The Force Awakens (’15) ›››‡ Harrison Ford. (PG-13) (HD) 5 Eyewitness News at 10 On the Road Bensinger - - - WSAW-7 60 Minutes (N) (HD) God Friended Me (HD) NCIS: Los Angeles (HD) Madam Secretary (HD) News 7 at 10 (:35) Face the Nation (N) NCIS: N.O. - - - KARE-11 How to Train Your Dragon (’10, Children’s) ››› Elvis All-Star Tribute (N) (HD) News Minn. Bound (:05) Entertainment Tonight 6 - - WKBTDT Entertainment Tonight (N) Dateline (TVPG) (HD) NCIS: New Orleans (HD) Leverage (TVPG) (HD) Major Crimes (TV14) The Listener (TV14) (HD) 60 Minutes (N) (HD) God Friended Me “The NCIS: Los Angeles “Smoke- Madam Secretary “Some- News 8 at (:35) The James (:35) Wipe- 7 8 8 WKBT Trouble With the Curve” (N) screen, Part II” (N) (HD) thing Better” (N) (HD) Ten (HD) M*A*S*H Brown Show out (HD) CBS-8 - - - WAOW-9 Funniest Home Videos Star Wars: The Force Awakens (’15) ›››‡ Harrison Ford.
    [Show full text]