|
Subject |
Comments |
Views |
Author |
Date Written  |
A link between depression and heart disease
|
view preview
For quite some time it's been known in the medical community that a link exists between depression and heart disease. For example, large epidemiological surveys typically find that 1.5 to 3 percent of the population is depressed at any given time. Among patients with heart disease, however, the rate of depression is closer to 18 percent. Similarly, about 1 in 6 people in the general population has an episode of major depression during their lifetimes, compared to about 50 percent of people with heart disease. Finally, a Canadian study revealed that of 222 patients who had suffered heart attacks, those who were depressed were four times as likely to die within the next 6 months. Amassing this evidence is one thing, but explaining it is quite ...
|
|
|
0 |
1255 |
bio_man |
A year ago |
Angiotensin-converting enzyme inhibitor
|
view preview
Angiotensin-converting enzyme (ACE) inhibitors are a remarkable class of drugs for treating hypertension – high blood pressure. These drugs work by interfering with the enzymes that convert an inactive chemical known as angiotensin I to an active form, angiotensin II. Angiotensin II increases the retention of salt and water in the body, raising blood pressure. ACE inhibitors interfere with, or inhibit, the formation of angiotensin II, resulting in relaxed arterial walls and lowered blood pressure. Since the release of the first ACE inhibitor in the 1980s, known generically as captopril, there are now several different ACE inhibitors available on the market. Many of them are also available in combination with other types of hypertension medic ...
|
|
|
0 |
17626 |
bio_man |
3 years ago |
How asthma is treated
|
view preview
Asthma is one of those illnesses that is so common that we never stop to question what causes it and how it could be treated. Affecting more than 25 million people, asthma is one of the most common chronic respiratory conditions in the United States. It is caused by the increased reactivity of the tracheobronchial tree to various stimuli, including exercise, allergies, or infections of the respiratory tract. Symptoms include, but are not limited to breathlessness, cough, wheezing, and chest tightness. Common Triggers of AsthmaThe most commonly used medications for asthma are: bronchodilators, xanthine derivatives, leukotriene inhibitors, corticosteroids, and mast cell stabilizers (see full list below). Xanthine derivatives treat asthma by re ...
|
|
|
0 |
4122 |
bio_man |
6 years ago |
Five Common Eye-Related Conditions and Diseases
|
view preview
Try imagining for a second how it'd feel to lose your eyesight. It's almost unimaginable because your vision is perhaps the most valuable tool for survival. This is why we need to constantly protect our eyes and learn what could potentially ail them. Below is a list of five common illnesses that plague the precious eyes of people around the globe. GlaucomaGlaucoma is damage to the optic nerve, often caused by elevated intraocular pressure. It results from excessive production of aqueous humor or diminished ocular fluid outflow. Glaucoma is a leading cause of blindness, secondary to optic nerve damage. As of yet, there is no cure. Everyone is at risk, and there may be no warning signs. It is six to eight times more common in African Americans ...
|
|
|
1 |
2602 |
bio_man |
6 years ago |
The possible cause for heavy periods explained
|
view preview
Nearly one-third of women experience heavy periods each month. This means that unlike normal periods where women lose up to 40 mL of blood per cycle, some women lose as much as 80 mL (more than a quarter of a cup) in at least one cycle throughout their life. Scientists think they might have found the answer as to why this happens, and they are blaming it on a non-hormonal protein. A new small study suggests that low levels of a specific protein known as hypoxia-inducible factor 1 (HIF1, right) might be to blame. HIF1 is a pretty handy healing molecule. When oxygen levels drop in parts of the body, a condition known as hypoxia, HIF1 activates more than 60 genes linked to tissue regeneration, and has already been shown to play a role in repai ...
|
|
|
2 |
4451 |
duddy |
8 years ago |
Living without a heart
|
view preview
Stan Larkin (pictured on the right), who's now 25, was diagnosed with familial cardiomyopathy. This form of disease results in the heart having difficulty pumping enough blood through the body. Faced with a lack of compatible heart donors, Stan underwent an operation in 2014 to remove his failing heart and replace it with an external total artificial heart, dubbed the Freedom portable driver. This battery-powered device uses compressed air to pump blood around the body in the same way a heart does, and as the name suggests, it is portable and only weighs 6 kilograms (13 pounds). The device does an incredible job at keeping the patient in a healthy condition while a donor heart becomes available, but it isn’t considered a long-term option. ...
|
|
|
0 |
6287 |
duddy |
8 years ago |
Heavy marijuana users produce less dopamine
|
view preview
For the first time, scientists have discovered a link between heavy marijuana use and reduced dopamine production. Just so you know, dopamine is the hormone/neurotransmitter that is released during any kind of satisfaction - it's the same hormone that is released in your brain when you eat chocolate. In a recent study, lower dopamine release was found in the striatum - a region of the brain that is involved in working memory, impulsive behavior, and attention, in addition to subregions involved in associative and sensorimotor learning, and in the globus pallidus. Previous studies have shown that addiction to other drugs of abuse, such as cocaine and heroin, have similar effects on dopamine release, but such evidence for cannabis was mis ...
|
|
|
0 |
4389 |
duddy |
8 years ago |
Running reduces tumor size in mice by 50%
|
view preview
According to a new study published in Cell Metabolism, mice who spent their free time on a running wheel were better able to shrink tumors (a 50 percent reduction in tumor size) compared to their less active counterparts. Researchers found that the surge of adrenaline ( epinephrine) that comes with a high-intensity workout helped to move cancer-killing immune (NK) cells toward lung, liver, or skin tumors implanted into the mice. While the research is hopeful for patients looking for inexpensive ways to manage their cancer, more needs to be learned about the effects of exercise on metastasis and longevity, as well as if the observations hold true in humans. Scientists also wants to explore the combined impact of anti-cancer treatments and ex ...
|
|
|
0 |
11304 |
duddy |
9 years ago |
Goat's milk, a cure for HIV?
|
view preview
A medical doctor claims he has the cure for HIV, a cure so simple it's laughable. According to Dr. Samir Chachoua, the Caprine Arthritis Encephalitis Virus (CAEV) in goats milk "destroys HIV and protects people who drink it for life". The so-called researched voluntarily infected himself with Charlie Sheen's HIV-infected blood, and cured himself shortly after with this cocktail. The moral of the story is, if you are traveling across the countryside and see a goat limping, please stop and milk it for Charlie. It's the least you can do. Joking aside, here's the interview with Bill Maher. ...
|
|
|
9 |
6623 |
duddy |
9 years ago |
Hair loss no more - a promising treatment for baldness
|
view preview
Isn't it strange, two FDA-approved drugs - topical ruxolitinib or tofacitinib - can reawaken dormant hair follicles! According to the study, within 3 weeks, mice that received topical ruxolitinib or tofacitinib had regrown nearly all their hair (right photo; drug was applied only to the right side of the mouse). Little to no hair growth occurred in control mice during the same timeframe (left photo). According to researchers at Columbia University Medical Center, inhibiting a family of enzymes inside hair follicles that are suspended in a resting state restores hair growth. These drugs, known as JAK inhibitors have been approved to treat blood diseases (ruxolitinib) and the other for rheumatoid arthritis (tofacitinib). Both are being tested ...
|
|
|
0 |
20592 |
duddy |
9 years ago |
This strange disease turns one's skin into bone
|
view preview
Known an fibrodysplasia ossificans progressive, or FOB for short, this disease can suddenly turn a person’s tissues and muscles into bone, thereby permanently immobilizing parts of the bodies. Joints such as elbows or ankles may become frozen in place; jaw motion can be impeded and the rib cage fixed, making eating or even breathing difficult. Currently, no cure exists to combat this rare condition.
|
|
|
0 |
8126 |
duddy |
9 years ago |
Double hand transplant
|
view preview
At only eights years-old, Zion Harvey is the youngest person with a double hand transplant ever. Four teams of surgeons worked over 11 hours to complete the complicated operation. Zion lost both of his hands and feet when he contracted sepsis at age two and experienced multiple organ failures. When he was four, he received a kidney transplant from his mother, and leg prosthetics have enabled him to engage in many activities.
|
|
|
1 |
2064 |
duddy |
9 years ago |
What do the Cubans have that the rest of the world doesn't?
|
view preview
A possible vaccine for lung cancer! In a country known for cigars, lung cancer is one of the major killers in Cuba. So for the past 25 years, they’ve been developing Cimamax, which is now available freely to Cubans. According to a Phase II trial conducted in Cuba in 2008, lung cancer patients who received the vaccine lived an average of four to six months longer than those who didn’t. This led Japan and some European countries to trial the drug as well. The drug itself is far from flawless and, by attacking a cell’s protein rather than the tumour directly, can have severe side effects, including – of all things - causing a higher risk of cancer. It might not be a "cure" in the traditional sense, but it's a way of managing the disease. What t ...
|
|
|
0 |
10966 |
duddy |
9 years ago |
Brain just can't catch a break
|
view preview
The importance of adequate, non-distracted, deep sleep could not be emphasized enough. Recent research has put the brain yet again under the spotlight, this time only to shed some light on one more reason we should be getting our sleep and why. Make sure to watch the video above. It is hands down, one of the best TED talks I have listened to. As for now, I'mma go make my CSF flush my amyloid betas  Nighty, night!
|
|
|
0 |
16520 |
ehd123 |
9 years ago |
Want to get rid of your double chin, now you can without surgery
|
view preview
An injectable drug, called ATX-101, currently being tested melts away "submental fat", better known as the double chin. According to its makers, ATX-101 can be injected in a clinic and takes just five minutes. It consists of deoxycholic acid, a naturally-occurring molecule that helps us break down fat, which effectively destroys the membranes of fat cells, causing them to burst and then be metabolised by the body. ...
|
|
|
0 |
27677 |
duddy |
10 years ago |
|