While we are all working from home, why not tear some binary code apart and pick up some reverse engineering skills? Within one hour, we will outline the typical workflow that we follow when analyzing malware.

Title: High Calcium, Vitamin D Intake May Harm Aging Brain
Category: Health News
Created: 5/2/2007 2:00:00 AM
Last Editorial Review: 5/2/2007 12:00:00 AM

Title: Hypertension Takes Huge Toll in Developing Countries
Category: Health News
Created: 5/2/2008 2:00:00 AM
Last Editorial Review: 5/2/2008 12:00:00 AM

Title: Scalpels in Hand, Robots Take to the ER
Category: Health News
Created: 4/27/2010 12:10:00 PM
Last Editorial Review: 4/28/2010 12:00:00 AM

Title: Taking Away Car Keys Can Be Tough for Older Drivers
Category: Health News
Created: 4/27/2012 6:06:00 PM
Last Editorial Review: 4/30/2012 12:00:00 AM

Title: Health Tip: Taking the Kids for a Shopping Cart Ride
Category: Health News
Created: 5/1/2012 8:05:00 AM
Last Editorial Review: 5/1/2012 12:00:00 AM

Title: Prescription Drug Take-Back Day Set for Saturday
Category: Health News
Created: 4/26/2013 12:36:00 PM
Last Editorial Review: 4/29/2013 12:00:00 AM

Title: Bullying May Take Bigger Toll Than Child Abuse, Neglect
Category: Health News
Created: 4/28/2015 12:00:00 AM
Last Editorial Review: 4/28/2015 12:00:00 AM

Title: Take Precautions to Prevent Child Poisonings
Category: Health News
Created: 4/22/2016 12:00:00 AM
Last Editorial Review: 4/25/2016 12:00:00 AM

Title: Got Unwanted Pills? Drug Take-Back Day Is April 30
Category: Health News
Created: 4/28/2016 12:00:00 AM
Last Editorial Review: 4/28/2016 12:00:00 AM

Title: 'You've Got Cancer' Can Take Devastating Mental Toll
Category: Health News
Created: 4/28/2016 12:00:00 AM
Last Editorial Review: 4/29/2016 12:00:00 AM

Title: Taking the Stairs a Better Pick-Me-Up Than Coffee
Category: Health News
Created: 4/28/2017 12:00:00 AM
Last Editorial Review: 5/1/2017 12:00:00 AM

Title: Take These 5 Steps to Live 10 Extra Years
Category: Health News
Created: 4/30/2018 12:00:00 AM
Last Editorial Review: 4/30/2018 12:00:00 AM

Title: Take the Ouch Out of Bee Stings
Category: Health News
Created: 4/29/2018 12:00:00 AM
Last Editorial Review: 4/30/2018 12:00:00 AM

Title: Take Online Reviews of Plastic Surgeons With a Grain of Salt
Category: Health News
Created: 4/27/2018 12:00:00 AM
Last Editorial Review: 4/30/2018 12:00:00 AM

Title: Have Heart Failure? Take Precautions During Pandemic
Category: Health News
Created: 4/28/2020 12:00:00 AM
Last Editorial Review: 4/28/2020 12:00:00 AM

Title: Workers With Cluster Headaches Take Twice as Many Sick Days
Category: Health News
Created: 2/6/2020 12:00:00 AM
Last Editorial Review: 2/6/2020 12:00:00 AM

Title: How Long Does It Take to Recover from Laparoscopic Inguinal Hernia Surgery?
Category: Procedures and Tests
Created: 5/1/2020 12:00:00 AM
Last Editorial Review: 5/1/2020 12:00:00 AM

Title: Drinking Takes Toll on Bones of People With HIV: Study
Category: Health News
Created: 3/6/2020 12:00:00 AM
Last Editorial Review: 3/9/2020 12:00:00 AM

Title: Taking Steroids for Rheumatoid Arthritis, IBD? Your Odds for Hypertension May Rise
Category: Health News
Created: 3/23/2020 12:00:00 AM
Last Editorial Review: 3/24/2020 12:00:00 AM

At some point during your life, it’s likely you’ll experience problems with your knees. Knees play an important role in helping us walk and bend, which means that they’re frequently in use. And like all parts of our bodies, sometimes they can wear out or be injured.

Background:

Despite widespread recognition that adherence to clinical preventive guidelines improves patient outcomes, clinicians struggle to implement guideline changes in a timely manner. Multiple factors influence guideline adoption and effective implementation. However, few studies evaluate their collective and inter-related effects. This qualitative study provides a comprehensive picture of the interplay between multiple factors on uptake of new or changed preventive guidelines.

Ayelen M. Blanco, Juan I. Bertucci, Jose L. Soengas, and Suraj Unniappan

This research assessed the direct effects of insulin on nutrient-sensing mechanisms in the brain of rainbow trout (Oncorhynchus mykiss) using an in vitro approach. Cultured hypothalamus and hindbrain were exposed to 1 µmol l^–1 insulin for 3 h, and signals involved in appetite regulation and nutrient-sensing mechanisms were measured. Additionally, the involvement of the phosphatidylinositide 3-kinase (PI3K)/protein kinase B (Akt) signaling pathway in the actions of insulin was studied by using the inhibitor wortmannin. Treatment with insulin alone did not elicit many changes in the appetite regulators and nutrient-sensing-related genes and enzymes tested in the hypothalamus and hindbrain. However, we found that, when insulin and nutrients were added together, insulin reversed most of the effects exerted by nutrients alone, suggesting that insulin changes responsiveness to nutrients at the central level. Effects reversed by insulin included expression levels of genes related to the sensing of both glucose (slc2a2, slc5a1, gck, pck1, pklr, g6pcb, gys1, tas1r3 and nr1h3 in the hindbrain, and slc2a2, pklr and pck1 in the hypothalamus) and fatty acid (cd36 in the hindbrain, and cd36 and acly in the hypothalamus). Nutrient-induced changes in the activity of Acly and Cpt-1 in the hindbrain and of Pepck, Acly, Fas and Hoad in the hypothalamus were also reversed by insulin. Most of the insulin effects disappeared in the presence of wortmannin, suggesting the PI3K/Akt pathway is a mediator of the effects of insulin reported here. This study adds new information to our knowledge of the mechanisms regulating nutrient sensing in fish.

Zhi-Jun Zhao, Davina Derous, Abby Gerrard, Jing Wen, Xue Liu, Song Tan, Catherine Hambly, and John R. Speakman

Lactating mice increase food intake 4- to 5-fold, reaching an asymptote in late lactation. A key question is whether this asymptote reflects a physiological constraint, or a maternal investment strategy (a ‘restraint’). We exposed lactating mice to periods of food restriction, hypothesizing that if the limit reflected restraint, they would compensate by breaching the asymptote when refeeding. In contrast, if it was a constraint, they would by definition be unable to increase their intake on refeeding days. Using isotope methods, we found that during food restriction, the females shut down milk production, impacting offspring growth. During refeeding, food intake and milk production rose again, but not significantly above unrestricted controls. These data provide strong evidence that asymptotic intake in lactation reflects a physiological/physical constraint, rather than restraint. Because hypothalamic neuropeptide Y (Npy) was upregulated under both states of restriction, this suggests the constraint is not imposed by limits in the capacity to upregulate hunger signalling (the saturated neural capacity hypothesis). Understanding the genetic basis of the constraint will be a key future goal and will provide us additional information on the nature of the constraining factors on reproductive output, and their potential links to life history strategies.

Yi Huang, Jazmin Osorio Mendoza, Catherine Hambly, Baoguo Li, Zengguang Jin, Li Li, Moshen Madizi, Sumei Hu, and John R. Speakman

The heat dissipation limit theory predicts lactating female mice consuming diets with lower specific dynamic action (SDA) should have enhanced lactation performance. Dietary fat has lower SDA than other macronutrients. Here we tested the effects of graded dietary fat levels on lactating Swiss mice. We fed females five diets varying in fat content from 8.3 to 66.6%. Offspring of mothers fed diets of 41.7% fat and above were heavier and fatter at weaning compared to those of 8.3% and 25% fat diets. Mice on dietary fat contents of 41.7% and above had greater metabolizable energy intake at peak lactation (8.3%: 229.4±39.6, 25%: 278.8±25.8, 41.7%: 359.6±51.5, 58.3%: 353.7±43.6, 66.6%: 346±44.7 kJ day^–1), lower daily energy expenditure (8.3%: 128.5±16, 25%: 131.6±8.4, 41.7%: 124.4±10.8, 58.3%: 115.1±10.5, 66.6%: 111.2±11.5 kJ day^–1) and thus delivered more milk energy to their offspring (8.3%: 100.8±27.3, 25%: 147.2±25.1, 41.7%: 225.1±49.6, 58.3%: 238.6±40.1, 66.6%: 234.8±41.1 kJ day^–1). Milk fat content (%) was unrelated to dietary fat content, indicating females on higher fat diets (> 41.7%) produced more rather than richer milk. Mothers consuming diets with 41.7% fat or above enhanced their lactation performance compared to those on 25% or less, probably by diverting dietary fat directly into the milk, thereby avoiding the costs of lipogenesis. At dietary fat contents above 41.7% they were either unable to transfer more dietary fat to the milk, or they chose not to do so, potentially because of a lack of benefit to the offspring that were increasingly fatter as maternal dietary fat increased.

Scarlet J. Park and William W. Ja

Factors that mediate ethanol preference in Drosophila melanogaster are not well understood. A major confound has been the use of diverse methods to estimate ethanol consumption. We measured fly consumptive ethanol preference on base diets varying in nutrients, taste, and ethanol concentration. Both sexes showed ethanol preference that was abolished on high nutrient concentration diets. Additionally, manipulating total food intake without altering the nutritive value of the base diet or the ethanol concentration was sufficient to evoke or eliminate ethanol preference. Absolute ethanol intake and food volume consumed were stronger predictors of ethanol preference than caloric intake or the dietary caloric content. Our findings suggest that the effect of the base diet on ethanol preference is largely mediated by total consumption associated with the delivery medium, which ultimately determines the level of ethanol intake. We speculate that a physiologically relevant threshold for ethanol intake is essential for preferential ethanol consumption.

The ₂ receptor is a potential in vivo target for measuring proliferative status in cancer. The feasibility of using N-(4-(6,7-dimethoxy-3,4-dihydroisoquinolin-2(1H)-yl)butyl)-2-(2-¹⁸F-fluoroethoxy)-5-methylbenzamide (¹⁸F-ISO-1) to image solid tumors in lymphoma, breast cancer, and head and neck cancer has been previously established. Here, we report the results of the first dedicated clinical trial of ¹⁸F-ISO-1 in women with primary breast cancer. Our study objective was to determine whether ¹⁸F-ISO-1 PET could provide an in vivo measure of tumor proliferative status, and we hypothesized that uptake would correlate with a tissue-based assay of proliferation, namely Ki-67 expression. Methods: Twenty-eight women with 29 primary invasive breast cancers were prospectively enrolled in a clinical trial (NCT 02284919) between March 2015 and January 2017. Each received an injection of 278–527 MBq of ¹⁸F-ISO-1 and then underwent PET/CT imaging of the breasts 50–55 min later. In vivo uptake of ¹⁸F-ISO-1 was quantitated by SUV_max and distribution volume ratios and was compared with ex vivo immunohistochemistry for Ki-67. Wilcoxon rank-sum tests assessed uptake differences across Ki-67 thresholds, and Spearman correlation tested associations between uptake and Ki-67. Results: Tumor SUV_max (median, 2.0 g/mL; range, 1.3–3.3 g/mL), partial-volume–corrected SUV_max, and SUV ratios were tested against Ki-67. Tumors stratified into the high–Ki-67 (≥20%) group had SUV_max greater than the low–Ki-67 (<20%) group (P = 0.02). SUV_max exhibited a positive correlation with Ki-67 across all breast cancer subtypes ( = 0.46, P = 0.01, n = 29). Partial-volume–corrected SUV_max was positively correlated with Ki-67 for invasive ductal carcinoma ( = 0.51, P = 0.02, n = 21). Tumor–to–normal-tissue ratios and tumor distribution volume ratio did not correlate with Ki-67 (P > 0.05). Conclusion: ¹⁸F-ISO-1 uptake in breast cancer modestly correlates with an in vitro assay of proliferation.

An aging global population combined with sedentary lifestyles and unhealthy diets has contributed to an increasing incidence of obesity and type 2 diabetes. These metabolic disorders are associated with perturbations to nitric oxide (NO) signaling and impaired glucose metabolism. Dietary inorganic nitrate, found in high concentration in green leafy vegetables, can be converted to NO in vivo and demonstrates antidiabetic and antiobesity properties in rodents. Alongside tissues including skeletal muscle and liver, white adipose tissue is also an important physiological site of glucose disposal. However, the distinct molecular mechanisms governing the effect of nitrate on adipose tissue glucose metabolism and the contribution of this tissue to the glucose-tolerant phenotype remain to be determined. Using a metabolomic and stable-isotope labeling approach, combined with transcriptional analysis, we found that nitrate increases glucose uptake and oxidative catabolism in primary adipocytes and white adipose tissue of nitrate-treated rats. Mechanistically, we determined that nitrate induces these phenotypic changes in primary adipocytes through the xanthine oxidoreductase–catalyzed reduction of nitrate to NO and independently of peroxisome proliferator–activated receptor-α. The nitrate-mediated enhancement of glucose uptake and catabolism in white adipose tissue may be a key contributor to the antidiabetic effects of this anion.

The coordinated electrical activity of β-cells within the pancreatic islet drives oscillatory insulin secretion. A recent hypothesis postulates that specially equipped "hub" or "leader" cells within the β-cell network drive islet oscillations and that electrically silencing or optically ablating these cells suppresses coordinated electrical activity (and thus insulin secretion) in the rest of the islet. In this Perspective, we discuss this hypothesis in relation to established principles of electrophysiological theory. We conclude that whereas electrical coupling between β-cells is sufficient for the propagation of excitation across the islet, there is no obvious electrophysiological mechanism that explains how hyperpolarizing a hub cell results in widespread inhibition of islet electrical activity and disruption of their coordination. Thus, intraislet diffusible factors should perhaps be considered as an alternate mechanism.

This study showed that treatment with a therapeutic monoclonal immunoglobulin-G1 antibody against phosphorylcholine on oxidized phospholipids preserves coronary flow reserve and attenuates atherosclerotic inflammation as determined by the uptake of ¹⁸F-fluorodeoxyglucose in atherosclerotic mice. The noninvasive imaging techniques represent translational tools to assess the efficacy of phosphorylcholine-targeted therapy on coronary artery function and atherosclerosis in clinical studies.

It is a source of frustration to many clinicians: you know what the patient's problem is, you know that effective and safe treatment is available, you've explained the disease and its causative mechanisms, the treatment and its principles, and the importance of taking the controller medication daily, you've prescribed this highly effective therapy and you've approached the patient with respect and patience, yet somehow the patient does not take the medication. When this patient has another exacerbation, you know it could have been prevented by following your advice and taking the medication.

Background:

Research on the relationship of meat, fish, and egg consumption and mortality among prostate cancer survivors is limited.

For almost first-time home buyers, owning a home can be a very rewarding experience. With a little caution and some attention to detail, you can avoid costly mistakes.

If you plan to buy a home within the next 1-3 years, be sure that you have prepared a large amount of money including value of the house and costs incurred to avoid the common mistake below.

In a home buying process, it can be easy to make missteps or to get caught up in small details that really don’t make much difference. These are four of the most common mistakes you should avoid to hunt your dream home.

For a smooth and profitable deal, you should avoid these four common and costly home selling mistakes before your home hits the market.

If you make a mistake during the listing process, you might end up getting less than your home is worth or find that it takes significantly longer to sell your home than it should.

Home selling can be an emotional process, so don’t make it even tougher by letting your emotions run the process. Make sure that you don’t fall into any of these four of the most common home selling mistakes.

Every seller wants his homes to be sold smoothly and quickly with the highest possible price. However, there are still houses which have been listed on the market for months without any potential buyer because the sellers make one, or maybe more, of the following popular mistakes:

Regardless of age, all first-time real estate investors are prone to making the same mistakes. Here are some dos and don’ts for new investors.

The millennium bug is back with a vengeance, after programmers in the 1990s simply pushed the problem back by 20 years

A person who has ingested cocaine will excrete a compound that can be detected from a single fingerprint, even if they have washed their hands

Robots are replacing manufacturing workers in France, making companies more productive and reducing employment across the industry

Adele posted a message to her social media channels this week thanking those on the front lines fighting COVID-19. In the process, the celebrated singer unveiled a thinner frame—and the internet had a lot of thoughts about it, almost all trash.

Enter Bill Maher, noted #MeToo skeptic, with perhaps the most garbage take of them all.

On Friday night, during the interview portion of his HBO show Real Time, the comedian began by placing the bulk of the blame for the high amount of COVID-19 deaths in the U.S. compared to other countries on America’s obesity problem—not, say, the fact that the Trump administration didn’t do a single thing during the month of February to contain the spread of the virus.

Read more at The Daily Beast.

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The best picture of the sun is more than five times more detailed than the previous highest-resolution images, revealing weird structures on our star’s surface

In 1847, members of the Choctaw Nation sent relief money across the Atlantic to a starving Ireland - something the Irish, who lost more than a million people in a famine made worse by British indifference, have never forgotten. The Irish are now giving financial aid to Native American tribes hit with a pandemic that has been made worse by American incompetence.

The Justice Department's move was the latest example of the attorney general's effort to chisel away at the special counsel investigation and emphasize an alternate narrative.

To take off from the water, this drone uses an explosion-powered water jet

Your weekly selection of awesome robot videos