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Saturday, September 24, 2022

Beating Inflation Is Easy Online—Except for Sellers

 On the web, inflation isn’t an issue for buyers. Instead, it’s one for the businesses that promote there, with a repute for providing bargains.

Prices are rising rather more slowly on-line than within the wider shopper financial system. During the pandemic, e-commerce companies have been capable of cost a bit extra when retailers have been closed and demand surged, however their pricing energy is sporting off.

In August, on-line costs within the U.S. elevated by 0.4% year-over-year, in line with the Adobe Digital Price Index. Overall inflation was 8.3% for the identical interval, or 6.3% stripping out meals and power prices.

Digital retailers initially used low costs to lure buyers from bricks-and-mortar opponents with nice success. Now there’s intense competitors amongst on-line gamers themselves to supply bargains. The ease of looking 1000’s of various web sites on the click on of a button encourages sellers to chop costs or present low cost codes.

Retailers that promote each by means of shops and on-line might use their web sites to do away with extra inventory at a reduction, cementing the web’s repute for bargains. And classes that contain lots of innovation are typically deflationary as new merchandise push down the price of older fashions, mentioned Vivek Pandya, analyst at Adobe Digital Insights. Electronics, which usually tend to be offered on-line than the common good, have been in deflation on-line since no less than 2014, for occasion.

While the development ought to make shopping for on-line extra interesting to price-conscious customers, for now e-commerce corporations are dropping market share. Last month, 24% of U.Okay. retail gross sales occurred on-line, down from a peak of 38% early final yr. This principally displays a return to extra regular procuring patterns after a surge in on-line shopping for throughout the pandemic, however spending can be softer. Europe’s greatest online-only trend manufacturers, Zalando and ASOS, count on to extend gross sales by simply 2% or so of their present monetary yr.

Weak demand makes it onerous for digital manufacturers to offset rising prices. They are extra pinched by excessive transport payments than opponents that even have a community of shops. Getting items from a warehouse to prospects’ doorways is changing into costlier due to gasoline surcharges and rising wages for couriers. According to Deutsche Bank Research, prices related to residence supply are equal to 10% to fifteen% of an e-commerce model’s gross sales, in contrast with 2% to three% when a truck delivers stock to a retailer.

Another wave of revenue warnings from online-only retailers appears seemingly. On Friday, British furnishings model Made.com put itself up for sale simply 15 months after its preliminary public providing, having lower its revenue steering thrice this yr. Fashion retailer Zalando has launched minimal order values in additional international locations to attempt to defend the corporate’s quickly shrinking working margins.

E-commerce shares have been out of trend currently: ASOS and Zalando are each down greater than 70% this yr. If excessive inflation prompts extra buyers to hunt on-line for bargains, their market share may recuperate. Deutsche Bank’s Adam Cochrane additionally factors out that buy-now-pay-later choices would possibly encourage pinched customers to buy on-line reasonably than stump up the total quantity in shops. For now, although, traders are most likely proper to suppose there are higher offers elsewhere.

https://choosebeats.com/beating-inflation-is-easy-online-except-for-sellers-latest-news/

Friday, September 23, 2022

Powering up platelet production to battle blood shortages

 A new discovery from the University of Virginia School of Medicine could let doctors ramp up production of blood-clotting platelets on demand, a timely finding following the Red Cross' declaration earlier this year of a national blood "crisis." The group labeled it the worst blood and platelet shortage in more than a decade and said it posed a "concerning risk to patient care."

In addition to making available more lifesaving platelets for transfusion, UVA's new discovery could help doctors better treat thrombocytopenia, a potentially dangerous clotting disorder that strikes almost a third of newborns in intensive care. The finding also could benefit patients battling cancer who need cord-blood transplants.

"Because of worsening shortages of donor-derived platelet units, there has been a big push within both public and private sectors for cell culture-based methods of generating platelets," said Adam N. Goldfarb, MD, the chief of UVA's Division of Experimental Pathology. "In addition to alleviating platelet shortages, the cell culture approach affords the opportunity for creating 'designer platelets' -- for example, platelets that do not elicit an immune response, which is a major problem in cancer patients."

Understanding Platelet Production

The new findings offer important insights into platelet-producing cells called megakaryocytes and how they change between birth and adulthood. In babies, megakaryocytes are much better at proliferating -- making more megakaryocytes -- than they are at making platelets. It's like they're focused on building platelet-production factories. With time, the megakaryocytes begin cranking out platelets in great volume, but this is accompanied by a dramatic slowdown in the production of megakaryocytes. So platelet numbers go up, but the ability to create new "factories" slows to a crawl.

Goldfarb and his team found they could toggle megakaryocytes between their infant and adult modes -- between making factories or making platelets -- by blocking a particular enzyme, Dyrk1a. Need more factories? No problem. That could relieve a major bottleneck in the production of platelets outside the body for transfusion.

Further, the finding could benefit cancer patients who receive cord-blood transplants by helping overcome platelet problems that slow the immune system's recovery and raise the risk of dangerous infections. Patients often receive cord-blood transplants when they cannot find a suitable donor for stem-cell transplants. Finding a donor can be especially challenging for people of African, Asian, Hispanic, Middle Eastern, southern European or mixed ethnic backgrounds.

The discovery could also lead to new treatments for thrombocytopenia, a condition in which the body has too few platelets. This can be the result of immune system problems, a bone marrow disorder such as leukemia (blood cancer), some viral infections or the use of certain medications. Thrombocytopenia is a particular problem for premature babies -- the more premature the baby is, the more severe the condition tends to be. Many premature babies require platelet transfusions to reduce their risk of uncontrolled bleeding inside the body.

Promisingly, there are already drugs to inhibit Dyrk1a -- that could flip the biological switch in megakaryocytes. These drugs are being evaluated to battle diseases ranging from Alzheimer's to diabetes. The availability of the drugs should speed human trials testing the clinical benefits of manipulating megakaryocytes, the researchers say. "Fortunately, these megakaryocytes can be grown in large numbers from umbilical cord blood cells," said researcher Kamaleldin E. Elagib, MBBS, PhD, of UVA's Department of Pathology.

Goldfarb, the associate director of UVA Health's Clinical Hematology Laboratory, notes that the new discovery could have far-reaching benefits. "In the short term, we hope to improve the efficiency of donor-independent platelet production to the point where it could be scaled up for routine clinical use. In the long term, we hope to identify new patient treatments that could stimulate rapid platelet recovery," he said. "Our findings offer a perfect example of how studying infantile versus adult cell development can yield clinical benefits."

The research was supported by the National Institutes of Health, grants R01 HL130550 and R01 HL149667.


Story Source:

Materials provided by University of Virginia Health SystemNote: Content may be edited for style and length.


Journal Reference:

  1. Kamaleldin E. Elagib, Ashton Brock, Cara M. Clementelli, Gohar Mosoyan, Lorrie L. Delehanty, Ranjit K. Sahu, Alexandra Pacheco-Benichou, Corinne Fruit, Thierry Besson, Stephan W. Morris, Koji Eto, Chintan Jobaliya, Deborah L. French, Paul Gadue, Sandeep Singh, Xinrui Shi, Fujun Qin, Robert Cornelison, Hui Li, Camelia Iancu-Rubin, Adam N. Goldfarb. Relieving Dyrk1a repression of MKL1 confers an adult-like phenotype to human infantile megakaryocytesJournal of Clinical Investigation, 2022; DOI: 10.1172/JCI154839

More older adults should be checking blood pressure at home: study

 Only 48% of people age 50 to 80 who take blood pressure medications or have a health condition that's affected by hypertension regularly check their blood pressure at home or other places, a new study finds.

A somewhat higher number -- but still only 62% -- say a health care provider encouraged them to perform such checks. Poll respondents whose providers had recommended they check their blood pressure at home were three and a half times more likely to do so than those who didn't recall getting such a recommendation.

The findings underscore the importance of exploring the reasons why at-risk patients aren't checking their blood pressure, and why providers aren't recommending they check -- as well as finding ways to prompt more people with these health conditions to check their blood pressure regularly. This could play an important role in helping patients live longer and maintain heart and brain health, the study's authors say.

Past research has shown that regular home monitoring can help with blood pressure control, and that better control can mean reduced risk of death; of cardiovascular events including strokes and heart attacks; and of cognitive impairment and dementia.

The findings are published in JAMA Network Open by a team from Michigan Medicine, the University of Michigan's academic medical center. The data come from the National Poll on Healthy Aging and build on a report issued last year.

The poll, based at the U-M Institute for Healthcare Policy and Innovation and supported by Michigan Medicine and AARP, asked adults aged 50 to 80 about their chronic health conditions, blood pressure monitoring outside of clinic settings, and interactions with health providers about blood pressure. Study authors Mellanie V. Springer, M.D., M.S., of the Michigan Medicine Department of Neurology, and Deborah Levine, M.D., M.P.H., of the Department of Internal Medicine, worked with the NPHA team to develop the poll questions and analyze the findings.

The data in the new paper come from the 1,247 respondents who said they were either taking a medication to control their blood pressure or had a chronic health condition that requires blood pressure control -- specifically, a history of stroke, coronary heart disease, congestive heart failure, diabetes, chronic kidney disease or hypertension.

Of them, 55% said they own a blood pressure monitor, though some said they don't ever use it. Among those who do use it, there was wide variation in how often they checked their pressure -- and only about half said they share their readings with a health provider. But those who own a monitor were more than 10 times more likely to check their blood pressure outside of health care settings than those who don't own one.

The authors note that blood pressure monitoring is associated with lower blood pressure and is cost-effective. They say that the results suggest that protocols should be developed to educate patients about the importance of self blood pressure monitoring and sharing readings with clinicians.


Story Source:

Materials provided by Michigan Medicine - University of Michigan. Original written by Kara Gavin. Note: Content may be edited for style and length.


Journal Reference:

  1. Mellanie V. Springer, Preeti Malani, Erica Solway, Matthias Kirch, Dianne C. Singer, Jeffrey T. Kullgren, Deborah A. Levine. Prevalence and Frequency of Self-measured Blood Pressure Monitoring in US Adults Aged 50-80 YearsJAMA Network Open, 2022; 5 (9): e2231772 DOI: 10.1001/jamanetworkopen.2022.31772

Cortisol level as indicator of addiction recovery success

 A new study by researchers at the Marshall University Joan C. Edwards School of Medicine found that lower initial cortisol levels may serve as a predictor for retention in treatment programs for substance use disorder.

The prospective observational study examined the salivary cortisol, stress exposure, adverse childhood experiences (ACEs) and treatment retention of males enrolled in abstinence-based, residential alcohol and drug recovery programs. Their findings were published last month in Alcoholism: Clinical and Experimental Researchthe scientific journal on alcohol abuse and treatment for the Research Society on Alcoholism and the International Society for Biomedical Research on Alcoholism.

Cortisol levels reflect a physiological response to stress. In this case, researchers found that participants who remained in the treatment program less than 90 days had significantly higher initial cortisol levels than those who remained in the program longer than 90 days. Further, a Cox proportional hazards model indicated that elevated salivary cortisol, marital/relationship status and ACEs score correlated significantly with hazards of discontinuing the program early.

"Our hope is that these findings will lead to cortisol as a biomarker that can help clinicians determine which individuals might need a more intensive therapeutic approach," said Todd H. Davies, Ph.D., associate director of research and development at the Joan C. Edwards School of Medicine and corresponding author on the study.

Taylor R. Maddox-Rooper, Kristiana Sklioutouskaya-Lopez, Trenton Sturgill, Caroline Fresch, Charles W. Clements II, M.D.; Rajan Lamichhane, Ph.D.; and Richard Egleton, Ph.D., also served as co-authors on the article. The research team also collaborated with Recovery Point of West Virginia, a long-term, residential recovery program based on the peer-driven model of recovery.

The research team, in collaboration with Recovery Point, currently has a larger follow-up study underway that seeks to identify the clinical significant levels of cortisol. This expanded study also includes a more representative population and examine the hormone oxytocin.

This work is supported by a rural grant from the Marshall University Robert C. Byrd Center for Rural Health through the West Virginia Higher Education Policy Commission. 


Story Source:

Materials provided by Marshall University Joan C. Edwards School of MedicineNote: Content may be edited for style and length.


Journal Reference:

  1. Taylor R. Maddox‐Rooper, Kristiana Sklioutouskaya‐Lopez, Trenton Sturgill, Caroline Fresch, Charles W. Clements, Rajan Lamichhane, Richard Egleton, Todd H. Davies. Intake assessments of salivary cortisol, survey responses, and adverse childhood experiences are associated with recovery success in an abstinence‐based treatment program for substance use disordersAlcoholism: Clinical and Experimental Research, 2022; DOI: 10.1111/acer.14913

Indoor air quality experiments show exposure risks while cooking, cleaning

 When you're cooking or cleaning inside your home, what chemicals are you breathing, and are they potentially harmful? Colorado State University chemists have given us a solid start on the answer.

A large, collaborative research experiment that attempted to map the airborne chemistry of a typical home took place in 2018 and was co-led by Delphine Farmer, associate professor in the Department of Chemistry at CSU. The experiment, called HOMEChem, brought 60 scientists from 13 universities to a test house at the University of Texas at Austin to perform typical home activities like cooking and cleaning and to use sophisticated instrumentation to document the chemistry that resulted. The effort, called HOMEChem, was supported by the Sloan Foundation.

In a new paper in Environmental Science & Technology, Farmer's team at CSU has taken the massive amounts of data collected during HOMEChem and sorted it out by health effects. They identified how many compounds they observed that are known human toxins, or, based on newer Environmental Protection Agency models, predicted to be likely human toxins. Most such compounds are emitted in low quantities and can be cleared through proper ventilation. But the health impacts of both the individual compounds and their complex mixtures indoors are not well understood by scientists.

The bottom line? "Indoor air isn't going to kill you, but we do find that indoor air has many more - and often times at higher levels -- known and potential air toxics versus outdoors, particularly when you're cooking," said Farmer, an atmospheric chemist who, before this experiment, had spent the majority of her career measuring more "traditional," outdoor air toxics.

Data management

The feat of data management for meaningfully connecting the data from HOMEChem to toxins databases was led by co-author Anna Hodshire, a former CSU postdoctoral researcher with skill in analyzing data from atmospheric instrumentation.

"I think it's very interesting that there are so many compounds emitted from common household activities, and that the majority of these compounds have not been studied from a toxicity perspective," Hodshire said. "This doesn't automatically mean that all of these compounds are toxic - but it does point to the fact that a lot more work needs to be done to assess some of the compounds that are emitted frequently in high concentrations from household activities."

From the vast array of compounds measured during HOMEChem, there emerged the usual suspects, like benzene and formaldehyde, in varying quantities. The lesser-known acrolein, which is a pulmonary toxicant emitted by lumber and heating of fats, came to light as a potential compound of interest for further investigation, Farmer said. Another compound that emerged from Hodshire's analysis was isocyanic acid, which is not well studied and is known to react with proteins in the human body.

The researchers found that cooking activities produced larger amounts of potentially toxic compounds, similar to some seen in wildfire smoke -- which made sense to Farmer, when you think of a wildfire as just an "extreme form of cooking."

Gaps in understanding of everyday toxins

Contributing to the body of knowledge around indoor air chemistry through the HOMEChem experiment has given Farmer and her team a newfound appreciation of just how much is missing of our understanding of our everyday exposures to potential toxins.

"We have done our part now, and hopefully there's enough information for others to pick up the charge and see what compounds are important to study," Farmer said.

Farmer and collaborator Marina Vance from the University of Colorado Boulder led a follow-up experiment to HOMEChem in 2022 called CASA, which delved further into how chemicals emitted indoors react with surfaces such as floors, walls and furniture. Results from that experiment are forthcoming.

Materials provided by Colorado State University. Original written by Anne Manning. Note: Content may be edited for style and length.


Journal Reference:

  1. Anna L. Hodshire, Ellison Carter, James M. Mattila, Vito Ilacqua, Jordan Zambrana, Jonathan P. D. Abbatt, Andrew Abeleira, Caleb Arata, Peter F. DeCarlo, Allen H. Goldstein, Lea Hildebrandt Ruiz, Marina E. Vance, Chen Wang, Delphine K. Farmer. Detailed Investigation of the Contribution of Gas-Phase Air Contaminants to Exposure Risk during Indoor ActivitiesEnvironmental Science & Technology, 2022; 56 (17): 12148 DOI: 10.1021/acs.est.2c01381

Icy swim may cut 'bad' body fat, but further health benefits unclear

 Taking a dip in cold water may cut 'bad' body fat in men and reduce the risk of disorders such as diabetes, suggests a major scientific review published in the peer-reviewed International Journal of Circumpolar Health.

The authors say many of the 104 studies they analysed demonstrated significant effects from cold water swimming including also on 'good' fat which helps burn calories. This may protect against obesity, cardiovascular disease, they add.

However, the review was inconclusive overall on the health benefits of cold-water bathing, an increasingly popular hobby.

Much of the available research involved small numbers of participants, often of one gender, and with differences water temperature and salt composition. In addition, it is unclear whether or not winter swimmers are naturally healthier, say the scientific expert team of review authors from UiT The Arctic University of Norway and from the University Hospital of North Norway.

"From this review, it is clear that there is increasing scientific support that voluntary exposure to cold water may have some beneficial health effects," states lead author James Mercer, from UiT.

"Many of the studies demonstrated significant effects of cold-water immersion on various physiological and biochemical parameters. But the question as to whether these are beneficial or not for health is difficult to assess.

"Based on the results from this review, many of the health benefits claimed from regular cold exposure may not be causal. Instead, they may be explained by other factors including an active lifestyle, trained stress handling, social interactions, as well as a positive mindset.

"Without further conclusive studies, the topic will continue to be a subject of debate."

Weight loss, better mental health, and increased libido are among numerous health and well-being claims made by followers of regular cold-water immersion or arising from anecdotal cases.

This activity takes many forms such as swimming in cold water during the winter, and is the subject of growing interest worldwide.

The main aim of the review was to determine whether voluntary exposure to cold water has health effects in humans. The methodology involved a detailed search of the scientific literature.

Excluded from the review were studies where participants wore wet suits, accidental cold-water immersion, and water temperatures greater than 20 degrees centigrade.

Themes covered by the studies that were eligible for review included inflammation, adipose tissue, blood circulation, immune system, and oxidative stress.

Immersion in cold water has a major impact on the body and triggers a shock response such as elevated heart rate.

Some studies provided evidence that cardiovascular risk factors are actually improved in swimmers who have adapted to the cold. However, other studies suggest the workload on the heart is still increased.

The review provided insights into positive links between cold water swimming and brown adipose tissue (BAT), a type of 'good' body fat that is activated by cold. BAT burns calories to maintain body temperature unlike 'bad' white fat which stores energy.

Cold exposure in water -- or air -- appears also to increase the production of adiponectin by adipose tissue. This protein plays a key role in protecting against insulin resistance, diabetes and other diseases.

Repeated cold-water immersions during the winter months significantly increased insulin sensitivity and decreased insulin concentrations, according to the review. This was for both inexperienced and experienced swimmers.

However, the authors point out that the profile of swimmers participating in the studies did vary. They ranged from elite swimmers or established winter bathers to those with no previous winter swimming experience.

Others were not strictly ice bathers but used cold-water immersion as a treatment post exercise.

Education is also needed on the health risks associated with taking a dip in icy water, say the authors. These include the consequences of hypothermia, and of heart and lung issues which are often related to the shock from the cold.


Journal Reference:

  1. Didrik Esperland, Louis de Weerd, James B. Mercer. Health effects of voluntary exposure to cold water – a continuing subject of debateInternational Journal of Circumpolar Health, 2022; 81 (1) DOI: 10.1080/22423982.2022.2111789

U.S. rollout of new COVID boosters off to slow start

 Updated COVID-19 boosters have gone into 4.4 million arms in the United States since a new revaccination campaign began three weeks ago, government data shows, a slower pace for the shots targeting the Omicron variant of the coronavirus than the rollout of the first boosters last year.

The government said earlier this week it has shipped 25 million of the Omicron-tailored shots, mostly from Pfizer /BioNTech.

Production of the similarly retooled Moderna shots has been slower due to what the U.S. Food and Drug Administration flagged as quality control issues at a contract manufacturing site run by Catalent Inc.

The FDA on Tuesday said it had cleared some vaccine from that plant.

Last year, when the United States initially authorized COVID boosters just for older and immunocompromised people, nearly 10 million received their third shot in the first three weeks.

The latest data, released late on Thursday by the U.S. Centers for Disease Control and Prevention (CDC), did show increased interest in the Omicron shots over demand for the older boosters during the previous three weeks.

In those three weeks, about 930,000 people received booster shots of the old vaccines available to those aged 50 and older or at risk for severe disease, according to CDC data.

Dr. Amesh Adalja, an infectious disease expert at the Johns Hopkins University Center for Health Security, said he expects demand for the updated shots to be low, "as has been the case with boosters from the very beginning."

"I think that stems from kind of the poor messaging in the way this booster campaign and prior booster campaigns have been managed, as political issues rather than focusing on where boosters are going to beneficial," he said.

That focus should be on high-risk populations and those aged 65 and over, Adalja added.

The updated shots target the widely circulating BA.4 and BA.5 Omicron subvariants as well as the original version of the coronavirus included in all previous COVID vaccines.

Moderna had been producing new boosters aimed at the older BA.1 Omicron subvariant when the FDA asked them to change course to address the currently dominant variants for the U.S. market.

https://www.marketscreener.com/quote/stock/MODERNA-INC-47437573/news/U-S-rollout-of-new-COVID-boosters-off-to-slow-start-41848103/