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Sunday, October 23, 2016

Tasmanian devil milk fights superbugs

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Milk from Tasmanian devils could offer up a useful weapon against antibiotic-resistant superbugs, according to Australian researchers.
The marsupial's milk contains important peptides that appear to be able to kill hard-to-treat infections, including MRSA, say the Sydney University team.
Experts believe devils evolved this cocktail to help their young grow stronger.
The scientists are looking to make new treatments that mimic the peptides.
They have scanned the devil's genetic code to find and recreate the infection-fighting compounds, called cathelicidins.
PhD student Emma Peel, who worked on the research which is published in the Nature journal Scientific Reports, said they had found six important peptides.
These appear to be similar to peptides in the milk of other marsupials, which means these animals are worth studying too.
"Tammar wallabies have eight of these peptides and opossums have 12," she said, adding that studies into koala's milk had now started.
Dirty devils
Experts believe marsupials are good to study because their babies have to thrive in a relatively dirty environment.
Tasmanian devil mothers give birth after only a few weeks of pregnancy. The tiny offspring then spend the next four months maturing in their mother's pouch.
The Sydney team recreated the six devil peptides that they found and tested them on 25 types of bacteria and six types of fungi.
One of the synthetic peptides - Saha-CATH5 - appeared to be particularly effective at killing the superbug methicillin-resistant Staphylococcus aureus or MRSA.
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MRSA

Many people carry MRSA on their skin and inside the nose and throat.
Most of the time, the infection is harmless.
But if it enters the body through an open wound for example, it may cause problems, which is why people staying in hospital are at a higher risk.
MRSA is treatable, but only with a combination of antibiotics that can get round the resistance problem.
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It also appeared to kill another resistant bug, called Vancomycin-resistant enterococcus, as well as fungi, called Candida, which are commonly involved in skin infections.
Experts agree that we urgently need new drugs to fight treatment-resistant infections.
A recent review warned that by 2050, superbugs could kill one person every three seconds across the world unless urgent action was taken.
Dr Richard Stabler, Associate Professor in Molecular Bacteriology at the London School of Hygiene & Tropical Medicine, said: "We need to do this hunting in unusual places for new antibiotics. People are beginning to explore and find new molecules."

Thursday, October 20, 2016

Nhà nghỉ thiên đường, nhà nghỉ giá rẻ, chất lượng phải chăng tại tp Đông Hà, Quảng Trị.

Nhà nghỉ thiên đường: số 2/16 174 Lê Duẩn, thành phố Đông Hà, tỉnh Quảng Trị.

Nhà nghỉ thiên đường mới được xây dựng và đi vào hoạt động vào tháng 1/2016 với đầy đủ thiết bị, tiện nghi, thoáng mát, sạch sẽ, có máy điều hòa, bình nóng lạnh. Với sự phục vụ tận tình chu đáo chúng tôi hy vọng sẽ làm hài lòng quý khách.
Bảng giá: 1 lượt khách:      80 – 100 k tùy thời gian.
                         Qua đêm:           150 k.
                         Một ngày đêm:  180 k.

Saturday, October 1, 2016

Frozen Shoulder ( Viêm quanh khớp vai thể đông cứng ).

Frozen Shoulder ( Viêm quanh khớp vai thể đông cứng ).

Frozen shoulder, also called adhesive capsulitis, causes pain and stiffness in the shoulder. Over time, the shoulder becomes very hard to move.
Frozen shoulder occurs in about 2% of the general population. It most commonly affects people between the ages of 40 and 60, and occurs in women more often than men.
Anatomy
Your shoulder is a ball-and-socket joint ( khớp ổ chảo cánh tay ) made up of three bones: your upper arm bone (humerus), your shoulder blade (scapula), and your collarbone (clavicle).
The head of the upper arm bone (chỏm của xương cánh tay) fits into a shallow socket in your shoulder blade ( ổ chảo của xương vai). Strong connective tissue, called the shoulder capsule ( bao khớp vai ), surrounds the  joint.
To help your shoulder move more easily, synovial fluid lubricates the shoulder capsule and the joint.

Description
In frozen shoulder, the shoulder capsule ( bao khớp vai ) thickens and becomes tight. Stiff bands   of tissue — called adhesions — develop. In many cases, there is less synovial fluid in the joint.
The hallmark sign (dấu hiệu chính ) of this condition is being unable to move your shoulder - either on your own or with the help of someone else. It develops in three  stages:
Freezing:
In the ”freezing” stage, you slowly have more and more pain. As the pain worsens, your shoulder loses range of motion. Freezing typically lasts from 6 weeks to 9 months.
Frozen:
Painful symptoms may actually improve during this stage, but the stiffness remains. During the 4 to 6 months of the “frozen” stage, daily activities may be very  difficult.
Thawing:
Shoulder motion slowly improves during the “thawing” stage. Complete return to normal or close to normal strength and motion typically takes from 6 months to 2 years.

Cause
The causes of frozen shoulder are not fully understood. There is no clear    connection to arm dominance or occupation. A few factors may put you more at risk for developing frozen shoulder.
Diabetes. Frozen shoulder occurs much more often in people with diabetes, affecting 10% to 20% of these individuals. The reason for this is not  known.
Other diseases. Some additional medical problems associated with frozen shoulder include hypothyroidism, hyperthyroidism, Parkinson’s disease, and cardiac  disease.
Immobilization. Frozen shoulder can develop after a shoulder has been immobilized for a period of time due to surgery, a fracture, or other injury. Having patients move their shoulders soon after injury or surgery is one measure prescribed to prevent frozen shoulder.
Symptoms
Pain from frozen shoulder is usually dull or aching. It is typically worse early in the course of the disease and when you move your arm. The pain is usually located over the outer shoulder area and sometimes the upper arm.
Doctor Examination

Physical Examination
After discussing your symptoms and medical history, your doctor will examine your shoulder. Your doctor will move your shoulder carefully in all directions to see if movement is limited and if pain occurs with the motion. The range of motion when someone else moves your shoulder is called “passive range of motion.” Your doctor will compare this to the range of motion you display when you move your shoulder on your own (“active range of motion”). People with frozen shoulder have limited range of motion both actively and passively.
Imaging Tests
Other tests that may help your doctor rule out other causes of stiffness and pain include:
X-rays. Dense structures, such as bone, show up clearly on x-rays. X-rays may show other problems in your shoulder, such as arthritis.
Magnetic resonance imaging (MRI) and ultrasound. These studies can create better images of problems with soft tissues, such as a torn rotator  cuff ( chóp xoay ).
Treatment
Frozen shoulder generally gets better over time, although it may take up to 3   years.
The focus of treatment is to control pain and restore motion and strength through physical therapy.
Nonsurgical Treatment
More than 90% of patients improve with relatively simple treatments to control pain and restore motion.
Non-steroidal anti-inflammatory medicines. Drugs like aspirin and ibuprofen reduce pain and swelling.
Steroid injections. Cortisone is a powerful anti-inflammatory medicine that is injected directly into your shoulder joint.
Physical therapy. Specific exercises will help restore motion. These may be under the supervision of a physical therapist or via a home program. Therapy includes stretching or range of motion exercises for the shoulder. Sometimes heat is used to help loosen the shoulder up before the stretching exercises. Below are examples of some of the exercises that might be  recommended.
External rotation — passive stretch. Stand in a doorway and bend your affected arm 90 degrees to reach the doorjamb. Keep your hand in place and rotate your body as shown in the illustration. Hold for 30 seconds. Relax and repeat.
Forward flexion — supine position. Lie on your back with your legs
straight. Use your unaffected arm to lift your affected arm overhead until you feel a gentle stretch. Hold for 15 seconds and slowly lower to start position. Relax and repeat.
Crossover arm stretch. Gently pull one arm across your chest just below your chin as far as possible without causing pain. Hold for 30 seconds. Relax and repeat.
Surgical Treatment

If your symptoms are not relieved by therapy and anti-inflammatory medicines, you and your doctor may discuss surgery. It is important to talk with your  doctor about your potential for recovery continuing with simple treatments, and the risks involved with surgery.
The goal of surgery for frozen shoulder is to stretch and release the stiffened joint capsule. The most common methods include manipulation under anesthesia and shoulder arthroscopy .
Manipulation under anesthesia. During this procedure, you are put to sleep. Your doctor will force your shoulder to move which causes the capsule and scar tissue to stretch or tear. This releases the tightening and increases range of   motion.
Shoulder arthroscopy ( sự khám nghiệm khớp vai ). In this procedure, your doctor will cut through tight portions of the joint capsule (ổ khớp). This is done using pencil-sized instruments inserted through small incisions around your shoulder.
In many cases, manipulation and arthroscopy are used in combination to obtain maximum results. Most patients have very good outcomes with these procedures.
Recovery. After surgery, physical therapy is necessary to maintain the motion that was achieved with surgery. Recovery times vary, from 6 weeks to three months.
Although it is a slow process, your commitment to therapy is the most important factor in returning to all the activities you enjoy.
Long-term outcomes after surgery are generally good, with most patients having   reduced or no pain and greatly improved range of motion. In some cases, however, even after several years, the motion does not return completely and a small amount of stiffness remains.
Although uncommon, frozen shoulder can recur, especially if a contributing factor like diabetes is still present.
OrthoInfo.org provides expert information about a wide range of musculoskeletal conditions and injuries. All articles are developed by orthopaedic surgeons who are members of the American Academy of Orthopaedic Surgeons (AAOS). To learn more about your orthopaedic health, please visit orthoinfo.org.
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