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Dorsal in Medical News

New Study Shows Facial Plastic Surgery Helps African American's Perserve Ethnicity

... 75 African American patients sought: 1) nasal dorsal augmentation for inadequate nasal dorsal height; 2) elevation of a low or depressed ... equilibrium of the nose and face by increasing dorsal height, lessens nasal flare, and increases tip ...

Mix of 2 pain-relief procedures can end chronic back and leg pain without drugs

... combines an implanted electronic device called a dorsal column (spinal cord) stimulator with a newer ... patients. Since 1968, physicians have used the dorsal column stimulator to control the leg pain common ... which tends to be opiate-resistant. Implantable dorsal column stimulators stop pain signals from ...

Overactive nerves in head and neck may account for 'ringing in the ears'

... nerve activity in a part of the brain called the dorsal cochlear nucleus that processes auditory and other signals. In normal hearing, the dorsal cochlear nucleus is the first stop in the brain ... trigeminal nerve and multisensory neurons in the dorsal cochlear nucleus. When they compared results in ...

Brain imaging and genetic studies link thinking patterns to addiction

... activity in the posterior parietal cortex, the dorsal prefrontal cortex, the anterior temporal lobe and ... they choose for the short-term gain. The dorsal prefrontal cortex and the parietal cortex often ... be worth the wait. The parietal cortex and the dorsal prefrontal cortex were much more active in people ...

New Parkinson's Treatment Shows Promise in Animals

... currents, a new study shows. Researchers said the technique, called dorsal column stimulation, has the potential to be an important new weapon in the ... said. In the study, researchers implanted a device to stimulate the dorsal column of the rodents' spinal cords, which carry tactile signals to the ...

Improving quality of life for brain tumor patients

... patients are asked to complete a task which assesses the function of the dorsal premotor cortex by requiring them to select between competing actions ... the cognitive selection of actions in patients with tumours near the dorsal premotor cortex. These techniques are now being applied to assess a ...

Penn researchers engineer first system of human nerve-cell tissue

... to grow in response to mechanical tension. They placed neurons from rat dorsal root ganglia (clusters of nerves just outside the spinal cord) on ... technique to living human nerve cells. Smith and his team obtained human dorsal root ganglia neurons (due to their robustness in culture) to engineer into ...

Clinical Innovations Introduces New Circumcision Device

... Practitioner in Rhode Island and primary inventor. "Not only do they simplify the circumcision procedure, but they also eliminate the need for a dorsal slit and remove the potential for mismatching parts. They also do away with the use of freehand scalpels, scissors, reusable clamps and safety pins ...

Brain Can 'See' Objects Through Touch

... scrambled images and touched objects with one hand. The results showed that tactile input is not secondary to visual recognition in activation of dorsal LO. Rather, it can operate directly through sense of touch, the study found. "Our data indicate, for the first time, that at least some regions in ...

Jet Lag Upsets Brain's Internal Clocks

... be thrown out of synch by jet lag or shift work. "When we impose a 22-hour light-dark cycle on animals, the ventral center can catch up, but the dorsal doesn't adapt and defaults to its own inner cycle," Horacio de la Iglesia, an associate professor of biology, said in a University of Washington news ...

Brain Scans Might Help Spot PTSD

... in people with PTSD. The researchers noted a number of brain activity differences between the PTSD group and the non-PTSD group, such as in the dorsal lateral prefrontal cortex, an area that plays a role in the ability to stay focused. While doing the memory task, the soldiers with PTSD performed ...

Three Johns Hopkins researchers named Howard Hughes Medical Institute early career scientists

... understanding the mechanisms behind sensation, including pain, itch and touch. All three so-called somatosensations are controlled by nerves in the dorsal root ganglia, a bundle of nerves that carries information through the spinal cord into the brain. To do their research, the team has developed new ...

Lab-grown nerves promote nerve regeneration after injury

... tissue in order to bridge a damaged section of nerve." Previously, Smith and colleagues have "stretch-grown" axons by placing neurons from rat dorsal root ganglia (clusters of nerves just outside the spinal cord) on nutrient-filled plastic plates. Axons sprouted from the neurons on each plate and ...

New findings shed light on why smokers struggle to quit

... brain to these smoking cues." Even more surprising, he adds, is the area of the brain that was activated by the cues. "We saw activation in the dorsal striatum, an area involved in learning habits or things we do by rote, like riding a bike or brushing our teeth. Our research shows us that when ...

Memory Formation Different in Those With Stress-Related Psychiatric Disorders

... traumatic events, while patients were given one word from the pair and asked to either recall or suppress their memory of the other word. "The dorsal prefrontal cortex is hyper-activated during tasks which require suppression and retrieval of memory" in these patients, said Dr. Nivedita Agarwal, a ...

Pitt-led research provides insight into development of congenital circulatory defects

... that gene can result in AVMs. In zebrafish harboring the mutation, two aortic arch vessels failed to connect properly to the body's major artery, the dorsal aorta. Instead, dead-end vessels formed then swelled with blood until they touched and fused with a nearby vein. AVMs typically form ...

Study shows that chronic grief activates pleasure areas of the brain

... a role in social attachment, such as sibling and maternal affiliation. They also examined activity in the pain network of the brain, including the dorsal anterior cingulate cortex and the insula, which has been implicated in both physical and social pain. They found that while both groups had ...

joimax(R) Revolutionizes Spine Surgery With the Launch of Newest and Fully-Endoscopic Product Innovations to Treat Spinal Canal Stenosis

... product innovation revolutionizing spinal surgery is the so called iLESSYS(TM) - interLaminar Endoscopic Surgical System. It enables the fully dorsal endoscopic access to the lamina and to the spinal canal, which in a stenotic patient situation is heavily compressing all structures. "With ...

UCLA researchers find blood stem cells originate and are nurtured in the placenta

... these newly made blood stem cells, giving them the first education they need. It was previously known that blood stem cells could be found in the dorsal aorta, but there were so few located there that scientists reasoned it could not be the sole source of blood stem cells in the embryo. Mikkolas ...

Nature publication on pain research

... filter assures that pain is not evoked by everyday stimuli like light touch. This is accomplished by inhibitory nerve cells located in the spinal dorsal horn that release the messenger molecule -amino butyric acid (GABA) at specialized contacts between neighboring nerve cells, so-called ...

Protein found that may provide relief from neuropathic pain

... In addition to decreasing inflammatory cytokines locally, treatment with LRP1 also decreased inflammatory cytokines in a region called the spinal dorsal horn, where central pain processing occurs. TNF-alpha has some positive properties in infection, so you may not want to block its activity ...

Scientists get first look at nanotubes inside living animals

... microscope allowed them to see and identify individual nanotubes inside the tissue specimens. The highest concentration of nanotubes was found in the dorsal vessel, which is analogous to a main blood vessel in a mammal. Lesser concentrations were found in the brain, ventral nerve cord, salivary glands, ...

An insight in to the memory pattern

... representing the formation of memory) in Drosophila is formed in the dorsal pair medial neurons only after 30 minutes mediated by the gene amnesiac ... fascinating thing is that memory trace occurs only in one branch of the dorsal pair medial (DPM) neuron. The researcher feels that after training, the ...

Understanding the Mechanism Underlying Embryo Development

... a set of cells grouped into different segments or compartments that never mix with one another, and which enable the symmetrical construction of the dorsal and ventral parts starting from a given limit or border. This process of subdivision into compartments also takes place during the formation ...

Mobility can be improved in elders with exercise

... created in UD's Human Performance Lab, Knight has been examining muscular force on a very small scale in the index finger, specifically, the first dorsal interosseous muscle. Located between the index finger and the thumb, this muscle contains 120 'motor units'--in other words, 120 individual neurons, ...

Pain Relief During Circumcision

... only 84 percent of the programs that taught circumcision. The most common pain relief techniques used for treating circumcision pain are the dorsal penile nerve block and the subcutaneous ring block, which involve injecting the painkiller lidocaine to decrease pain. Researchers say topical ...

Simple Lifestyle Changes May Improve Cognitive Function and Brain Efficiency

... lifestyle plan demonstrated a five percent decrease in brain metabolism in the part of the brain directly linked to working memory called the dorsal lateral prefrontal cortex. “The finding suggests that for participants who had followed the healthy longevity program, the brain functioned ...

Cure For Autism Could Be Established Through Hamster Studies

... to see each individual cell in the brain that was activated due to the event. The researchers found activity in the hamster’s brain that the anterior dorsal hippocampus and amygdala were activated. When this part was numbed with lidocaine, a local anesthetic it was found that the animal did not avoid ...

Inhibition of morphine tolerance by spinal melanocortin receptor blockade

... also the influence of chronic morphine administration on ì-opioid receptor (MOR) and melanocortin 4 receptor (MC4-R) mRNAs in the rat spinal cord and dorsal root ganglia (DRG) during morphine tolerance. Morphine treatment over 8 days induced tolerance as reflected by a significant reduction of ...

Ambiguous Efficacy Of Opioid Drugs In Chronic Inflammatory Joint Pain Relief

... below normal. At three weeks, all receptor activity levels dropped off significantly. Immunohistochemical and real-time PCR analysis of the L3-L5 dorsal root ganglia ipsilateral to the chronic arthritis lesion revealed a reduction in -opioid receptor protein and gene expression compared with that in ...

PET Scan find the Area of Brain Responsible for Anorexia Nervosa

... in women with anorexia. The researchers also found increased dopamine D2/D3 receptor activity in another part of the basal ganglia called the dorsal caudate, which is related to responses to and avoidance of harm. Such activity may help explain why women with anorexia exhibit exaggerated worry and ...
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