Author Archives: Tigran Dadalyan
Artificial vision by Direct Optic Nerve Electrode (AV-DONE)
There are many blind people in the world. Major causes of blindness are cataract and refractive error according to WHO’s report. But those disease have solutions like surgeries, glasses and contact lens. In spite of recent medical development,
Wait a minute, how come heavier reacts faster?! Quantum effects in biochemistry and medicine
Physics is often thought to be quite irrelevant to Biochemistry and Medicine. But, the very first Physics Nobel Prize in 1901, for the discovery of X-rays, is highly related to Medicine nowadays. This clearly shows that a
Imaging tumor development using next generation raster scan optoacoustic mesoscopy
Cancer is one of the major diseases in the 21st century. Hundreds of billions of dollars have been spent on cancer research in the last half century, but still, our understanding of the disease mechanisms is limited.
A brain haemorrhage during anticoagulant therapy: what therapy next?
We read with interest the articles by Ntaios and by Ricci et al. concerning pros and cons of restarting oral anticoagulants (drugs that work to prevent the coagulation (clotting) of blood) after intracerebral hemorrhage. While we appreciate
A treatment option for laparoscopically-resected uterine leiomyosarcoma with morcellation
A new and frequently utilized treatment option for symptomatic uterine leiomyoma is laparoscopic resection with morcellation so the specimen can be extracted through a small abdominal incision or through the vagina. Despite meticulous preoperative evaluation , some
The genetic secrets of Uveal Melanoma
Uveal melanoma (UM) is the most common primary cancer occurring in the eyes of adults, with 1/100,000 new cases per year in the Western world. Most patients are between 60 and 65 years old. Although it is a
TGFbeta signalopathies as a paradigm for translation medicine
Marfan syndrome (MFS) is a disorder that affects different organ systems, such as the heart, aorta, eyes and the skeleton. Typically MFS patients present with tall stature, hands with long fingers, chest deformity. One of its most
Understanding stability in functional nanoparticle inks
The past decade has seen an explosion of interest in 3-D printing. While many applications of 3-D printing use curable polymers to construct macroscopic scale objects (think printing of toys, jewelry, and architectural models), one of the
Medieval chainmail motif stabilizes DNA nanostructures
The field of nanotechnology refers to all objects in the size range between 1 and 100 nanometers, which correspond to one billionth of a meter. This dimension is hard to imagine and it can be defined as
What predicts who will do well in treatment for post-traumatic stress disorder?
Post-traumatic stress disorder (PTSD) is a common psychological response following a traumatic event and affects about 8% of the population. Effective psychological treatments do exist and should be made available to anyone who is diagnosed with PTSD.
The antibacterials that have yet to be found
Science has contributed greatly to prolong the lifespan and health conditions of humans. However, close to the coming of age of the XXI Century, humankind is confronting the global war against infectious diseases. Leaving aside other microorganisms-associated
Low salt intake during pregnancy
All cells of an organism share the same DNA sequence from the time they are stem cells until they are fully differentiated, differing greatly in relation to the profile of expressed genes. Changes in gene expression which
Stag beetles restrain bite force to prevent breaking their own jaws
Males have evolved such strong bite muscles, that they risk breaking their own jaws while pinching. They prevent damage by modulating their bite force with a network of tiny sensors in their jaws. The distribution of these
Risk modifier(s) of susceptibility to pediatric acute lymphoblastic leukemia
Acute Lymphoblastic Leukemia (ALL) is an acute form of cancer of the white blood cells, characterized by the overproduction and accumulation of immature precursors known as lymphoblasts. ALL is the most common type of leukemia in children
Removal of small tonsils helps children with obstructive sleep apnea
Approximately 2% to 4% of children are affected by obstructive sleep apnea (OSA), a condition that can result in decreased memory, bad grades and behavioral problems in school when it is not treated. Large tonsils and adenoids
How antioxidants may have a pro-oxidant effect?
The main function of the consumption of antioxidants is to strengthen the activity of enzymatic antioxidant systems of our cells and this is intended to prevent or delay oxidative stress caused by the increase of reactive oxygen
Treatment of toenail fungus with tavaborole topical antifungal solution
Fungal infection of the nails affects up to 14% of North Americans, particularly older people and those with cardiovascular disease and diabetes. Toenails are affected more often than fingernails, with symptoms that include separation of the nail
The origin of the HIV-1 epidemic
The epidemic of human immunodeficiency virus type 1 (HIV-1), the causative agent of AIDS, is one of the world’s major public health problems, with around 37 million people currently infected with this virus. The HIV-1 epidemic originated
Implicit learning of a speed-contingent target feature
When opening a door, the force with which it is pushed – or pulled – determines how fast it swings. Often it is supposed that the stimulus following such an action can be consciously foreseen. But let’s
Early family regularity protects against later disruptive behavior
Children’s temperamental anger or frustration reactions, defined as negative affect in reaction to interruption of ongoing tasks or blocking the child’s goal, are already observable in the first 2 to 3 months of life, and may decline
