Saturday, March 23, 2013

complaints after prostate surgery



Complaints were more common in men treated with radical prostatectomy (surgical removal of the prostate) or male hormone-blocking drugs combined with radiation therapy, according to the study by researchers from Dana-farber/Brigham and women cancer center. No men reported a perceived shorthing of their penisfollow radiation therapy alone.

Twenty-five men (2.63 percent of the group) complained of smaller penises after treatment,
3.73 percent for surgery, 2.67 percent for radiotherapy plus androgen deprivation therapy (ADT), and 0 percent for radiotherapy alone.

This study says that when penile shortening does occur, it really does affect patients and their quality of life. The study subjects were men enrolled in a registry called COMPARE that collect data on patients whose prostate cancer shows sign of recurring after initial treatment. just over half -- 54 percent -- had undergone surgery to remove their cancerous prostate, while 24 percent received radiation therapy combined with hormone blocking treatment, and 22 percent had radiation therapy alone.



Friday, March 22, 2013

research on erectile dysfunction



Physical factors cause neraly two-thirds of cases, mainly because of problems with the blood vessels, with phychological issues like emotional strees and depression accounting for the remainder.
Many studies have reported that CP may induce systematic vascular disease, such as coronary heart disease, which have been linked with erection problems.

The average age of the men in both groupswas just under 36 and there were no significant differences whem it came to body mass index, household income and education. Their sexsual was assessed using the International Index of Erection Function and their gum health using the plaque index, bleeding on probing, probing depth and clinical attachment level.


To our knowledge, erectile dysfunction and CP in humans are caused  by similar risk factors, such as aging, smoking, diabetes mellitus and coronary artery disease.
 

Diagnosis Mesothelioma



Malignant mesothelioma is a rare but aggressive thoracic cancer that can develop several decades after exposure to asbestos. Diagnosis is often delayed until patients begin to show symptoms , including shortness of breath, cough, chest pain and, in advanced stages, weight loss and night sweats.

Often, patients with mesothelioma seek treatment when the shortness of breath becomes a noticeable  problem. Rather, doctors initially associate fluid in the chest with pneumonia or other inflammatory conditions, futher delaying diagnosis, Dr. Pass explained.

Despite advances in chemotherapy, radiation therapy, and surgical management for malignant mesothelioma, the median survival for patients diagnosed with mesothelioma remains 12 months.



Thursday, March 21, 2013

How to Destroy Bacteria Insect Wings

Tiny nanopatterns on the locust-like insect's wing surface simply tear the microorganisms apart. The wings of the clanger cicada ( psaltoda claripennis ) are covered by nano-sized "pillars" arranged in a vast hexagonal pattern.

ivanova and colleagues experimented with bacteria with different physical properties to see what happens when they land on the wing surface. a biophysical model of the interactions between bacterial cells and cicada wing surface structures, and show that mechanical properties, in particular cell rigidity, are they factors in bacterial resistenace / sensitivity to the bactericidal nature of the wing surface ".

share information Immune cells like bees

When bees find new information as a new source of honey, to share the news with other bees when they return to the hive. Now, a new study from the U.S. suggests that the immune system's T cells have a similar behavior in the coordination of responses to pathogens and vaccines.

Scientists at the University of California - San Francisco (UCSF) write about their findings in the online edition of Nature Immunology March 10.

Lead author Matthew Krummel, Professor of Pathology at UCSF. He said in a statement that while T cells are a dance for their peers in the same cell as the bees do when they have bee companions news to share, if they come together to share critical information in a similar manner.

"They are grouped together in order to share information, share what they have learned about the new pathogen or a vaccine, which in turn helps the immune system mounts a coordinated response to the foreign material," explains she said, adding that the discovery could help develop new treatments to fight against the disease.
Krummel and colleagues call this the "critical period."