Source: Medical News Today
Security & Justice
State Action Signals Change in Tackling Longstanding Illegal Land Grabs in Jbeil District
For years, the serene villages of Jbeil's highlands have been far from peaceful. Ghabat, a Maronite village nestled between the predominantly Shiite towns of Afqa and Lassa, has become a focal point of growing tensions due to territorial disputes.
Friday, December 20, 2024
Mawlawi Ensures Strict Monitoring for Wanted Syrian Regime Figures at Beirut Airport
Caretaker Minister of Interior, Bassam Mawlawi, conducted an inspection tour of Rafic Hariri International Airport in Beirut to review the security arrangements and measures implemented by the Airport Security Apparatus ahead of the holiday season.
Thursday, December 19, 2024
Opinion
Lebanon After the Assads
The United States has important equities in Lebanon, including a desire for a generally friendly government’s economic and political stability; security cooperation; long-standing relations with the large Christian community in Lebanon and Lebanese diaspora in the United States; and ultimately peace between Israel and Lebanon within a broader regional settlement. Achieving these objectives will require navigating a tumultuous period in the country’s history following a war between Hezbollah and Israel that has devastated a large part of the country, exacerbating Lebanon’s already challenging economic conditions. But perhaps the most important dynamic will be how a likely Sunni-dominated state of uncertain composition in Syria will differ in its intentions toward Lebanon from the previous Alawite-led minoritarian Assad regime.
Thursday, December 19, 2024
Europe’s Syrian Dilemma
The news of the sudden and unexpected demise of Bashar al-Assad’s regime in Syria has met a mixed response in Europe. The jubilation that a murderous dictator and close ally of Russia and Iran has fallen is not just good for the Syrian people but serves as a morale booster for Eastern Europeans wondering whether Russia can be defeated
Wednesday, December 18, 2024
Sports
Cristiano Ronaldo Unveils New Private Jet Worth $73 Million
Cristiano Ronaldo, one of the richest global athletes, has unveiled his upgraded private jet reportedly worth $73 million. With its top-notch design, exceptional speed and range of 7500 nautical miles, the Gulfstream G650 is among the fastest jets in the world.
Monday, December 16, 2024
Guardiola Accepts Man City May Need to Sign More Players to Cope with Schedule
Manchester City manager Pep Guardiola believes he will need a bigger squad to handle soccer’s ever-expanding fixture schedule.
Saturday, December 14, 2024
Tuesday 11 April 2023 15:23:43
Treating a Heart Attack Before It Happens: It May Not Be a Science Fiction
Although most people survive a heart attackTrusted Source initially, the risk of death significantly increases over the following years.
In fact, 65% of peopleTrusted Source who have a heart attack over the age of 65 die within eight years of the initial incident. This is at least partly because while a person may survive an initial heart attack, the heart attack itself, which leads to the heart tissue being deprived of oxygen and then dying, does not regenerate in adult humans.
In a recent animal study, researchers identified a mechanism that allowed them to treat heart tissue and make healthy mice’s hearts more resilient before a heart attack.
The study’s results appear in Nature Cardiovascular Research.
Heart attack and muscle death
Prof. James Leiper, Ph.D., Associate Medical Director at the British Heart Foundation and Professor of Molecular Medicine in the School of Cardiovascular and Metabolic Health at the University of Glasgow, U.K. told Medical News Today in an email:
“Most heart attacks are caused by coronary artery disease which can cause your coronary arteries to become narrowed. The narrowing is due to a gradual buildup of fatty deposits called atheroma. If a piece of atheroma breaks off, a blood clot forms around this to try and repair the damage to the artery wall. This clot can then block your coronary arteries causing the heart muscle to be starved of blood, oxygen, and vital nutrients, leading to heart muscle death.
The amount of damage to the heart muscle depends on the size of the area supplied by the blocked artery. As heart muscle is unable to regenerate it never fully repairs. Instead, scar tissue forms in place of healthy cardiac muscle.”
Cardiomyocytes are a type of cell in the heart that is responsible for the contraction of the muscle. This contraction of the muscle is essential for the heart to be able to squeeze blood around the body, in response to electrical signaling that maintains the heartbeat. When these cells are damaged in a heart attack, the heart loses some of its ability to squeeze blood around the body as effectively.
While cardiomyocytes are able to proliferate in human fetuses, this ability is lost in mature adult humans. It is believed this is partly due to an evolutionary trade-off that sees the ability of mature cardiomyocytes to proliferate decline with contractile strength. This means damage caused by events such as heart attacks can not be corrected.
