Skip to main content

Cure for TB

Researchers synthesize iron compounds that inhibit growth of Mycobacterium tuberculosis

This research appears on 'Journal of Inorganic Biochemistry'

 A team of researchers from Spain and Latin America     have synthesized two iron compounds that inhibit the in vitro growth of Mycobacterium tuberculosis, the bacteria that causes tuberculosis. Due their low level of toxicity in mammal cells, the compounds could be used in the future as therapeutic agents and hospital disinfectants.

A group of researchers from the Universidad de Navarra (Spain), the Universidad de la República (Uruguay), the Universidad de São Paulo (Brazil) and the Universidad Nacional de La Plata (Argentina) have synthesized two iron complexes "that showed in vitro growth inhibitory activity on Mycobacterium tuberculosis", Dinorah Gambino and María Torre, authors of the study and researchers at the Universidad de la República explained to SINC.

The study, published this month by the Journal of Inorganic Biochemistry uses iron atoms to join organic molecules (derived from quinoxaline ), forming compounds that act as bactericides (killing bacteria) or bacteriostatic agents (preventing bacteria from reproducing). The organic molecules were synthesized at the Universidad de Navarra.

"One of the greatest problems in relation to the pharmacotherapy for treating tuberculosis is the appearance of bacteria resistant to current medicines, which is why it is important to develop new active ingredients", the researchers indicate.

In order to treat tuberculosis, initially "first-line" antibiotics are used (such as isoniacide or estreptomicine ), but when side effects appear, or in cases of stronger resistance, "second-line" antibiotics are resorted to (such as cicloserine or ciprofloxacine ). The new compounds inhibit M. tuberculosis better than the "second-line" medicines.

Low Toxicity

Another advantage of the iron compounds is that they show low toxicity in mammel cells, as demonstrated by the experiments performed with mice cells. "That is why these compounds are useful as hospital disinfectants or therapeutic agents," the Uruguayan researchers highlight, albeit recalling that, at present, they in vitro trials "and the line of research remains open to learn more about how they act."

Antonio Monge, co-author of the study and a researcher at the Universidad de Navarra, underlines the importance of cooperating with research centres in Latin America, where there are many cases of tuberculosis and other diseases such as malaria or chagas disease. "This type of cooperation always benefits the person who is suffering".

Tuberculosis kills more than one million people a year worldwide (1.3 million in 2008). Various Mycobacterium species - particularly M. tuberculosis- are the cause.

At present, tuberculosis is considered a re-emerging disease due to the increase in the number of people with HIV and other viruses that attack the immune system, as well as to the increasing consumption of immunosuppressive and recreational drugs. The World Health Organization (WHO) estimates that 30 million people will be infected by tuberculosis over the next 20 years.
Labels:

Comments

Post a Comment

Popular posts from this blog

Have Flu-Like Symptoms? Could Be a Semen Allergy

A mysterious syndrome in which men come down with a flu-like illness after an orgasm may be caused by an allergy to semen, Dutch scientists said Monday. Men with the condition, known as post orgasmic illness syndrome or POIS and documented in medical journals since 2002, get flu-like symptoms such as feverishness, runny nose, extreme fatigue and burning eyes immediately after they ejaculate. Symptoms can last for up to week. Marcel Waldinger, a professor of sexual psychopharmacology at Utrecht University in the Netherlands, published two studies which suggest that men with POIS have an allergy to their own semen, and that a treatment known as hyposensitisation therapy can help reduce its impact. "These results are a very important breakthrough in the research of this syndrome," Waldinger said in a telephone interview. He said the findings "contradict the idea that the complaints have a psychological cause" and show that an auto-allergic reaction to semen is th...
3 comments
Read more

Reasons Why Your Hips Hurt

Hips Don't lie Inside the Joint Each hip is a ball-and-socket joint. The ball is the top of your thighbone (femoral head). The socket (acetabulum) is in your pelvic bone. Smooth, slippery tissue called cartilage lets the ball and socket glide against each other when you move. A thin lining (synovium) tops the cartilage and makes a bit of synovial fluid, which further eases rubbing.  Tendons, ligaments, and muscles complete the joint. Osteoarthritis It’s the “wear and tear” type of arthritis that many people get in middle age. Cartilage on the ball end of the thighbone and in the hip socket slowly breaks down and causes grinding between bones. You’ll have stiffness, and you might feel pain in your crotch and at the front of your thigh that radiates to your knee and behind. It’s often worse after a hard workout or when you don’t move for a while. Rheumatoid Arthritis With RA, your immune system attacks parts of your body, which can include the syn...
Post a Comment
Read more

Don’t clamp umbilical cords straight after birth!!!!!

Don’t clamp umbilical cords straight after birth, urges expert Personal view: Why do obstetricians and midwives still rush to clamp the cord?  Obstetricians and midwives should wait a few minutes before clamping the umbilical cords of newborn infants so that babies are not harmed by the procedure, argues Dr David Hutchon in an article published on bmj.com today.  Hutchon, a retired consultant obstetrician from the Memorial Hospital in Darlington, says it’s time for the UK to follow guidance from the World Health Organisation and the International Federation of Gynaecology and Obstetrics and refrain from early cord clamping.  Despite evidence for the benefit of delayed cord clamping, clinicians in the UK seem reluctant to change their practice, he says, and the UK National Institute for Health and Clinical Excellence (NICE) is not advising them to do so.  One explanation for the apparent resistance of clinicians to follow the evidence is that that cord clamping “has...
1 comment
Read more