<h2 class="jove_title"><a href="https://www.jove.com/video/55518">Improving Strength, Power, Muscle Aerobic Capacity, and Glucose Tolerance through Short-term Progressive Strength Training Among Elderly People</a></h2>Eva A. Andersson1,2, Per Frank1,3, Marjan Pont&#233;n1, Bj&#246;rn Ekblom1, Maria Ekblom1,2, Marcus Moberg1, Kent Sahlin11<a href='/institutions/EU-Europe/SE-Sweden/25627-The-Swedish-School-of-Sport-and-Health-Sciences,-GIH'>&#197;strand Laboratory of Work Physiology, The Swedish School of Sport and Health Sciences, GIH</a>, 2<a href='/institutions/EU-Europe/SE-Sweden/977-Karolinska-Institutet'>Department of Neuroscience, Karolinska Institutet</a>, 3<a href='/institutions/EU-Europe/SE-Sweden/977-Karolinska-Institutet'>Department of Physiology and Pharmacology, Karolinska Institutet</a>The effect of short-term resistance training on elderly people was investigated through the simultaneous use of several methods. Compared to a control group, many improvements were seen, including on muscle aerobic capacity, glucose tolerance, strength, power, and muscle quality (i.e., protein involved in cell signaling and muscle fiber type composition).<h2 class="jove_title"><a href="https://www.jove.com/video/55605">Extraction and Purification of Polyphenols from Freeze-dried Berry Powder for the Treatment of Vascular Smooth Muscle Cells In Vitro</a></h2>Rafaela G. Feresin1, Shirin Pourafshar2,3, Jingwen Huang2, Yitong Zhao2, Bahram H. Arjmandi2,3, Gloria Salazar2,31<a href='/institutions/NA-North-America/US-United-States/AR-Arkansas/25276-University-of-Arkansas-for-Medical-Sciences'>Department of Dietetics and Nutrition, University of Arkansas for Medical Sciences</a>, 2<a href='/institutions/NA-North-America/US-United-States/FL-Florida/25604-Florida-State-University'>Department of Nutrition, Food and Exercise Sciences, Florida State University</a>, 3<a href='/institutions/NA-North-America/US-United-States/FL-Florida/25604-Florida-State-University'>Center for Advancing Exercise and Nutrition Research on Aging (CAENRA), Florida State University</a>This work details a step-by-step method to prepare polyphenol-rich extracts from freeze-dried berry powder. In addition, it provides a thorough description of how to use these polyphenol-rich extracts in cell culture in the presence of the peptide hormone angiotensin II (Ang II) using Vascular Smooth Muscle Cells (VSMCs).<h2 class="jove_title"><a href="https://www.jove.com/video/55958">Smartphone Fundus Photography</a></h2>Hossein Nazari Khanamiri, Austin Nakatsuka, Jaafar El-Annan<a href='/institutions/NA-North-America/US-United-States/TX-Texas/25196-University-of-Texas-Medical-Branch,-Galveston'>Department of Ophthalmology and Visual Sciences, University of Texas Medical Branch</a>Fundus photography normally requires specialized fundus cameras that are not always available in all clinical settings.&#160;Here, a simple method to record ocular fundus images using a smartphone camera and a conventional high-plus handheld indirect ophthalmoscopy lens is described.<h2 class="jove_title"><a href="https://www.jove.com/video/55872">Electroencephalographic, Heart Rate, and Galvanic Skin Response Assessment for an Advertising Perception Study: Application to Antismoking Public Service Announcements</a></h2>Giulia Cartocci1, Myriam Carat&#249;2, Enrica Modica3, Anton Giulio Maglione1, Dario Rossi3, Patrizia Cherubino4, Fabio Babiloni11<a href='/institutions/EU-Europe/IT-Italy/25712-Sapienza-University-of-Rome'>Department of Molecular Medicine, Sapienza University of Rome</a>, 2<a href='/institutions/EU-Europe/IT-Italy/25712-Sapienza-University-of-Rome'>Department of Communication and Social Research, Sapienza University of Rome</a>, 3<a href='/institutions/EU-Europe/IT-Italy/25712-Sapienza-University-of-Rome'>Department of Anatomical, Histological, Forensic, and Orthopedic Sciences, Sapienza University of Rome</a>, 4<a href='/institutions/EU-Europe/IT-Italy/25714-BrainSigns-SRL'>BrainSigns SRL</a>The following protocol describes a series of operational and computational steps required to properly estimate the emotional and cerebral reaction of a group of subjects towards a selected number of Public Service Announcements (PSAs) against smoking, aired in the USA and Europe during the period between 1998 and 2015.

jove monthly highlights: july 2017

Here's a look at what's coming up in the July 2017 issue of <a href="https://www.jove.com/">JoVE: The World's Premier Video Journal</a>
Summer fruits are our first video-appetizer this month, specifically, berries. Publishing in <a href="https://www.jove.com/biology">JoVE Biology</a>, <a href="https://www.jove.com/video/55605/extraction-purification-polyphenols-from-freeze-dried-berry-powder">our Authors</a> present a method for extracting polyphenols from freeze-dried blackberry and raspberry powder. Polyphenols have demonstrated antioxidant, anti-Inflammatory and cardio-protective properties. After extraction utilizing ethanol and sonication, our authors investigate the effects of both crude and purified extracts on cultured Vascular Smooth Muscle Cells. This extraction method can be applied to a wide variety of fruits and vegetables, and that's berry cool!
Eating healthily pairs with working out as we move to our second video highlight this month, from <a href="https://www.jove.com/chem">JoVE Chemistry</a>. Here, <a href="https://www.jove.com/video/55518/improving-strength-power-muscle-aerobic-capacity-glucose-tolerance">our Authors</a> describe a short-term resistance-training program focusing the elderly. The group used an isokinetic dynamometer to obtain detailed information on changes in strength and power, muscle biopsies to assess aerobic capacity, and monitored changes in glucose tolerance. They conclude that strength training in seniors may be more efficient and less physically stressful than endurance exercise for combatting common age related issues like diabetes, and reduce the risk of injury.
At the opposite end of the health spectrum our next study, from <a href="https://www.jove.com/neuro">JoVE Neuroscience</a>, looks at anti-smoking media. <a href="https://www.jove.com/video/55872/electroencephalographic-heart-rate-galvanic-skin-response-assessment">Our Authors</a> examined the emotional and cerebral reactions of subjects towards a selection of Public Service Announcements, or PSA's, aired in the USA and Europe between 1998 and 2015. Using a combination of electroencephalography, heart rate monitoring, and galvanic skin response, the researchers measured the physical and emotional effects of the commercials on the participants to gauge their effectiveness. These data may be used to design more effective PSA's in the future, and help reduce the number of current and new smokers.
All eyes are on a cool new technological application for our final highlight this month. In <a href="https://www.jove.com/med">JoVE Medicine</a>, <a href="https://www.jove.com/video/55958/smartphone-fundus-photography">our Authors</a> describe a simple method to record images of the ocular fundus using a smartphone camera and a conventional, hand-held ophthalmoscopy lens. This snappy trick allows clear documentation of macula and optic nerve changes in settings not previously available due to the lack of access to a professional fundus camera. I think we can all see how smart that is!
You've just had a sneak peek of the July 2017 issue of <a href="http://www.jove.com/">JoVE</a>. Visit the website to see the full-length articles, plus many more, in JoVE: The World's Premier Video Journal.

Watch this Scientific Journal Video about JoVE Monthly Highlights: July 2017 at JoVE.com

JoVE Monthly Highlights: July 2017

Here's a look at what's coming up in the July 2017 issue of <a href="https://www.jove.com/">JoVE: The World's Premier Video Journal</a>

Here's a look at what's coming up in the July 2017 issue of JoVE: The World's Premier Video Journal
Summer fruits are our first video-appetizer this ...

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2.2K visualizações.  JoVE Content Production. Here's a look at what's coming up in the July 2017 issue of JoVE: The World's Premier Video Journal

Vídeo: JoVE Monthly Highlights: July 2017

2012: A Year In Review

Here's a look at some of the milestones and highlights of the year 2012 in Journal of Visualized Experiments (JoVE).
At the start of 2012, JoVE reached a major milestone by publishing our 1500th article. In this publication, in JoVE Bioengineering, Yu et al. described a method for analyzing the free radical composition of cigarette smoke. This method simulated cigarette puffing with a single-port smoking device, and combined it with electron spin resonance (ESR) spectroscopy to measure the degree to which antioxidant compounds can scavenge free radicals in cigarette smoke. A possible outcome of this research is the creation of less harmful cigarettes.
JoVE Bioengineering also contained the most-viewed article of 2012. Owczarczak et al. described a method for hacking a standard inkjet printer, loading ink cartridges with a cell-suspension "bioink," and printing lines of live cells onto glass slides. The thermal inkjet printing process creates temporary pores in the cell membrane, visualized by the incorporation of fluorescently labeled actin monomers. This concept, called "bioprinting," has many potential applications in cell and tissue engineering.
Also in 2012, JoVE Bioengineering featured a protocol by Hsia et al. for isolating and purifying spider silk protein, spinning it into fibers, and assessing the fiber strength. This protocol for laboratory-scale production of spider silk, which is stronger than tensile steel, can potentially be extended to large-scale manufacturing.
In JoVE Clinical and Translational Medicine, we featured a number of articles related to stroke, one of which. In one article, M&ouml;bius-Winkler et al. demonstrated placement of the WATCHMAN left atrial appendage occlusion device from Boston Scientific. This device is designed to prevent strokes by trapping clots within the left atrial appendage of the heart before they exit. Our authors demonstrated how to insert the guide wire through the femoral artery into the heart, advance the device into the left atrium, and deploy the device in the left atrial appendage.
Another article focused on stroke, Hamel et al. described the use of a driving simulator to study how patients compensate for visual field defects following stroke. By analyzing the compensatory gaze behavior of patients as they navigated through virtual driving courses with varying degrees of complexity, our authors see great potential for the use of driving simulators in stroke rehabilitation.
In JoVE Immunology and Infection, we published an article by Keyel et al. describing the real-time kinetics of immune cell responses to bacterial toxins using live cell microscopy. Combined with high-speed 3D confocal microscopy, this technique can also visualize the cellular repair response.
Also in JoVE Immunology and Infection, we featured an article by Yap et al. describing methods for diagnosing helminth infections in children. Helminths are parasitic worms that can infect the intestinal tract of humans and animals, and may be distinguished based on their morphology. The same article demonstrated how to measure the impact of helminth infections on physical fitness in children, which is a measure of overall health.
In JoVE Neuroscience, we featured a method by Hoffmann et al., who used tiny headphones to alter the auditory feedback in songbirds, and analyzed the computational and neurophysiological basis of vocal learning in birds when they adjust their singing in response to altered acoustic signals.
Also in JoVE Neuroscience, we moved from birds to bees with a method that assesses associative and non-associative tactile learning in honeybees. This method, by Mujagi&#263; et al., allowed bees to scan different metal surfaces with their antennae, then conditioned them to expect sugar water when their antennae touched particular surfaces, and analyzed the corresponding changes in antennal movement.
In 2012, we launched a brand-new section: JoVE Applied Physics, which features articles on subjects ranging from plasma physics to material science. The Applied Physics section also contained JoVE's 2000th video article, filmed in a synchrotron radiation facility, where Borisenko et al. showed how to determine the electronic structure of complex materials using angle-resolved photoemission spectroscopy.
In the JoVE General section, we published an article by Artioli et al. demonstrating the use of a portable gas analyzer to measure oxygen consumption during complex exercise - such as judo. By analyzing oxygen consumption and collecting blood for measuring plasma lactate concentration, this method can determine the relative contributions of different energy systems to specific aspects of complex exercise.
Finally, JoVE followed Dolhi et al. to a permanently ice-covered saline lake in Antarctica. There, scientists drilled through the ice to study single-celled microorganisms called protists that live in the harsh conditions of Antarctica.
This Year in Review was just a brief glimpse of a few of over 600 video articles that JoVE offered in 2012. Browse the JoVE archives to see thousands of other videos, and stay tuned for what's coming up this year in JoVE: The Journal of Visualized Experiments.

Here's a look at some of the milestones and highlights of the year 2012 in Journal of Visualized Experiments (JoVE).

2012: Um ano em análise

 
 
Here's a look at some of the milestones and highlights of the year 2012 in Journal of Visualized Experiments (JoVE).
At the start of 2012, JoVE ...