Here are things you probably didn’t know about your body. Now that you know, you’ll have more reasons to be thankful tomorrow.Thursday is Thanksgiving Day in America. Thanksgiving, however, is a good attitude for every human being to have every day. Of all people who have ever lived, we in 2016 are blessed to know the most about invisible processes that keep us alive.Scavenger cells repair muscle fibers: New findings give insight into the cell membrane repair process of torn muscle fibers (Science Daily): If you plan to enjoy a little basketball, baseball or football before dinner, be thankful that you have tiny scavenger cells that go around repairing microruptures in your muscle cells. First, the cells create a patch, like a bandage, to keep the injured muscle cell from dying. Then the surgeons come. Researchers studied this process and observed “scavenger cells moving around within the muscle virtually perform nano-surgery to remove this repair patch later and restore the normal cell membrane structure.”Cell extrusion mechanisms: Making sure to expel an unwanted cell (Science Daily): Your body tissues and organs rely on sheets of cells called epithelium. When epithelial cells die in a process called apoptosis (programmed cell death), they need to be extruded and replaced. French researchers looked into this process, and found it more complex than earlier believed. The body monitors the density of the sheets to make sure they are neither too loose nor too tightly packed. (This could be important when the stomach expands during a Thanksgiving feast.)This study revealed, for the first time, that two distinct mechanisms exist to expel apoptotic cells from epithelial cell sheets. Selection between cell extrusion mechanisms is defined by cell density — cell crawling and lamellipodia extension is the predominant mechanism at low density, but purse-string contraction is favoured at high density. The existence of these complementary mechanisms could be important for ensuring the removal of unnecessary cells (e.g. apoptotic cells) in different circumstances to maintain the integrity of the epithelial cell sheet.Sensor for blood flow discovered in blood vessels (Science Daily): We all know about the importance of blood pressure. Our blood vessels are constantly subjected to changes in pressure as the heart beats and vessels expand or constrict. How does the healthy body maintain the right pressure? “Scientists have been looking for a measurement sensor for many years that enables the translation of mechanical stimuli into a molecular response, which then regulates the tension in blood vessels,” this article says. Now, researchers at Max Planck Institute think they have found it. It’s an ion channel named PIEZO1. “PIEZO1 is activated by the mechanical stimulus” from high blood pressure, the article says. “It causes calcium cations to flow through the channel into the endothelial cells and thereby trigger a chain reaction.” Part of the reaction involves release of nitric oxide which expands the vessels, relieving the pressure. Mice with defective PIEZO1 channels had permanent high blood pressure.New quality control revealed in immune T cell development (Science Daily): Did you know that your body has a multitude of “quality control” processes? One of them is reported in this article about your immune cells. Before your thymus allows a T cell into the blood cell, it has to pass a fitness test. Like the few, the proud, the Marines, “Only a small proportion of the T cells that begin their development ‘graduate’ and are allowed out of the thymus, into the bloodstream — the rest do not survive.” Semper fi.Molecular ‘pillars’ team up to protect liver from toxic fat buildup (Science Daily): Many of us will regret the extra pounds put on the day after Thanksgiving, but our livers must be protected from excess fat. Two molecules work in tandem to prevent excess fat in the liver. Take away both, and “the results are catastrophic.” Scientists found something interesting; “The two molecules are back-up systems for each other, rather than a balance, as the team previously thought.” So if you can pat your belly safely after eating, be thankful you survived another potential catastrophe.Discovering what keeps cellular cargo on track (Science Daily): Having some salad with your dinner? Be glad plant cells have well-equipped transportation systems. If you play Minecraft on the holiday weekend, you’ll appreciate this quote:“Healthy cells operate as smoothly as the best Minecraft city imaginable,” said Federica Brandizzi, MSU Foundation Professor of plant biology. “The miniature cities are fully equipped with all of the facilities, or organelles, that are necessary for a smooth-running operation.“Administration center, factories and even recycling centers are all there, running at 100-percent efficiency. In contrast to the infrastructures and city buildings in cells, however, the organelles, are not built on static foundations. They are huge, mobile cellular cargos that travel rapidly to reach resources and deliver products. When organelles go off the rails and mobility is disrupted, bad things happen.This is describing your own cells, too. But the article focuses on plant cells, particularly on a newly-found protein SYP73. As the protein factory called endoplasmic reticulum moves around on molecular tracks, this protein “keeps cellular cargo on track, quite literally.” Did you know that about the lettuce leaf you’re munching?We all have extraordinarily many reasons to be thankful. Not only is gratitude good for your own health (11/22/12), your Maker deserves it (11/27/14). These articles above provide just meager glimpses at thousands upon thousands of automated processes going on in your body that allow you to taste, smell, and enjoy good food. What goes on afterward to take that food and build your muscles, bones and organs is absolutely mind-boggling! All these things were woven together in your mother’s womb before you were even born (Psalm 139:13-18), as you developed from a single cell. Don’t neglect to offer the sacrifice of praise to your Creator, and then share what you have with others, which is pleasing to God (Hebrews 13:15-16).This entry is a good spot to take a break for the Thanksgiving holiday. CEH will be back Sunday or Monday, or earlier if a big story breaks before then. Happy Thanksgiving! (Visited 61 times, 1 visits today)FacebookTwitterPinterestSave分享0
Share Facebook Twitter Google + LinkedIn Pinterest Windy conditions dominate as we start off today, bringing colder air in over the state. We continue to see light snow over the northern part of the state, and that snow will be ending by midday in most area. We won’t rule out fresh coating to half an inch this morning in areas from US 30 northward, but that snow will be ending from west to east. Lake effect snow will be likely in northern Ohio, particularly in NE Ohio, where we could see another 1-4 inches with the lake enhancement. Blowing snow may also end up being more of a problem than fresh snow in many northern areas today. We should see partly to mostly sunny skies across the rest of the state today, and that same sky condition will funnel in behind the snow as it ends in the north. Wind should subside this afternoon. We stay mostly sunny tomorrow, but chilly. On Friday, we see clouds increasing statewide. A southern track for the low pressure system we have been talking about all week is starting to take shape. However, it also is delaying its arrival just a bit, so clouds build through the day in the south, while the northern half of Ohio likely turns out rather nice for most of the day .We can see snow start to develop in far southern parts of the state late Friday evening toward midnight and then continues trough mid morning Saturday. The current track keeps most of the southern half of the state in light snow, and the heaviest action will be near the Ohio River. Right now we would put most of the snow in a coating to 2 inch range, and say near the river, particularly in south central Ohio, 2-6 inches. The heavier moisture laden part of the system stays just south of the state line. Cold air stays behind this system. Windy and colder for the balance of Saturday, with partly to mostly sunny skies emerging. On Sunday, clouds are back, and we will see some light snow. We expect a coating to 2 inches over 70% of the state from Sunday midnight through early morning Monday. However, later Monday we try to turn out mostly sunny and cold for President’s Day. We still expect some sub-zero lows for the morning of Presidents day. Tuesday the 19th clouds increase. Snow develops in central parts of the state mid to late afternoon with rain farther south. Then the snow spreads north through the overnight and into Wednesday. On Wednesday snow will be ending, but not before leaving some additional accumulation in the far northern part of the state. We think that most of the northern two thirds of the stat can see 1”-3” of snow combined for the Tuesday-Wednesday AM period, and areas from US 30 northward may add another coating to an inch early Wednesday before the snow ends. The map at right shows potential snow totals from this event. Keep in mind this is a week out…and plenty can change. Clouds will give way to sun for the balance of Wednesday. Thursday and Friday turn out mostly sunny. In the extended period, a quick burst of snow can fall in the overnight next Friday night into early Saturday, bringing a coating to 3 inches to the northern part of the state, nothing south. Then we see rain from Sunday afternoon through Monday, with liquid equivalent precipitation totals of .25”- .75” and coverage at 90%. Colder air follows that system, and we could see snows over the northern part of the state for late the 26th and again late the 27th.
#Jamaica, October 24, 2017 – Kingston – The Caribbean Poison Information Network (CARPIN) is recommending the implementation of monitoring programmes within health facilities to capture information on accidental poisoning in Jamaica.Poison Information Coordinator at CARPIN, Sherika Whitelocke-Ballingsingh, said that such data could inform the development of policy and legislation to address lead poisoning. The entity is also calling for segregated waste management that will help with providing some amount of control over what is burned and emitted into the atmosphere.Mrs. Whitelocke-Ballingsingh, who was addressing a JIS Think Tank recently, said there is need for greater levels of accountability and monitoring in the use of lead in Jamaica, in order to prevent incidents of poisoning. She was speaking against the background of the observation of International Lead Poisoning Prevention Week from October 22-28 and the local focus on eliminating lead exposure in the environment.She cited research done by Professor Gerald Lalor and a team from the University of the West Indies (UWI) on lead poisoning in Kintyre, St. Andrew; and Red Pond in St. Catherine in the 1980s, which was associated with backyard smelting. Mrs. Whitelocke-Ballingsingh said the team found that although a Ministry of Health study done subsequent to the discovery prompted the banning of battery smelting in the country, illegal operations continued.She noted that the research, conducted in Mona Commons in 2004, found that 74 children had been diagnosed with lead poisoning in 1998 and that just a few of them had received treatment. The researcher concluded that the problem had not been properly mitigated and that danger still existed for children in the area.It was also found that there was no monitoring system in place to facilitate current data to validate that the problem no longer exists, that there were no policies in place to enforce preventive actions, and that there needed to be closer monitoring of non-segregated waste through air-quality testing.Mrs. Whitelocke-Ballingsingh noted that lead poisoning has a debilitating effect on the development of children, causing intellectual disabilities. She said recent research, including a 2004 study by Stretesky et al out of Northumbria University in England, links lead exposure to violent and criminal activity.In 2016, lead exposure accounted for 494,550 deaths globally.Release: JIS Facebook Twitter Google+LinkedInPinterestWhatsApp Facebook Twitter Google+LinkedInPinterestWhatsApp Related Items: