Infectious Diseases @infectiousdiseases-blog - Tumblr Blog

Stumped for years by a natural filter in the body that allows few substances, including life-saving drugs, to enter the brain through the bloodstream, physicians who treat neurological diseases may soon have a new pathway to the organ via a technique developed by a physicist and an immunologist...

medicalschool

In the hippocampus, neural stem cells (green) sit in a layer below their progeny, the granule neurons (red). When activated by extrinsic stimuli, they enter mitosis and generate neuron progenitor cells, which eventually mature into neurons and migrate into the layer above. The number of neural stem cells in the hippocampus decreases over time, possibly contributing to the cognitive impairment associated with aging. One hypothesis is that, after a rapid series of divisions, these neural stem cells disappear via their conversion into astrocytes.

Image: Section of a mouse hippocampus imaged with Zeiss LSM 50 confocal microscope with a 40X C-Apochromat water-immersion objective lens (N.A. value 1.2, working distance 220 microns) at 62x magnification. Brain slices were fixed in 4% paraformaldehyde, immunolabeled, and then cleared in FocusClear (CelExplorer, Taiwan).

clinical-lab-scientist

Blood Cell Morphology Guide

Blood Cell Morphology Guide. This guide include lectures from CellAtlas, the online cell image database launched in 2000. The lectures provide a basic knowledge of the wide field of morphology. Each section contains a brief summary and additional links provide further explanations or addtional images.

neurosciencestuff

Johns Hopkins researchers believe they may have discovered an explanation for the sleepless nights associated with restless legs syndrome (RLS), a symptom that persists even when the disruptive, overwhelming nocturnal urge to move the legs is treated successfully with medication.

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radiopaedia

Left upper lobe collapse - arguably the hardest of the lobar collapses to identify. READ MORE: http://goo.gl/MYgRn via our Instagram - Dr FRANK Gaillard, Dr Andrew DIXON, Dr Jeremy JONES, Dr HANI Alsalam, Dr BRUNO Di Muzio, Dr MATT Skalski

incipient-rapture

Skeleton shopping for medical students.

infectiousdiseases-blog

I want to go skeleton shopping.

whatshouldwecallmedschool

When I've been studying for hours and I still can't remember a goddamned thing

infectiousdiseases-blog

Yeah.

themedicalstate

Stroke vs. MS

Confusion, slurred speech, and muscle weakness can be symptoms of MS (Multiple Sclerosis), but they can also be signs of a stroke. Anyone who suddenly has trouble speaking or moving their limbs should be taken to the ER immediately. Treating a stroke within the first few hours provides the best odds of a successful recovery.

odditiesoflife

The Bog Body of “Grauballe Man”

The “Grauballe Man”, pictured above, was found in 1952 by a Dane digging for peat in Northern Europe. His throat was cut in 290 B.C., but his body was well enough preserved to yield fingerprints. Why was he killed? Maybe ritual, maybe execution for a crime, maybe human sacrifice. Here’s one odd clue: judging from his nutrition and manicure, the body appears to have been from the upper class.

The acidity of the bog water, the cold temperature, and the lack of oxygen have effectively prevented these corpses from decomposing. More than 700 bodies have been recovered, some as old as 10,000 years and some still appearing fresh enough to be mistaken for recent murder victims.

zygoma

Malaria is caused by a protozoan that infests the body known as Plasmodium. This protozoan lives within the red blood cells. These protozoa are transmitted from person to person by the Anopheles mosquito, which is native to tropical and subtropical regions. There are four Plasmodium protozoan species that are responsible for causing malaria. When an infected mosquito bites a person, the parasite enters the bloodstream and travels to the liver. Once there, it grows and multiplies. While the parasite is in the liver there are no visible symptoms. The parasites multiply quickly, resulting in destruction of red blood cells. With this knowledge it is possible to choose herbal malaria treatment that can fight this disease successfully. [x]

principe-dos-doritos

jewwbear

Fucking crazy ass science shit.

oh-whiskers

akiracomplexsound-deactivated20

UC Berkeley scientists have developed a system to capture visual activity in human brains and reconstruct it as digital video clips. Eventually, this process will allow you to record and reconstruct your own dreams on a computer screen.

more here

This is absolutely fascinating but JESUS CHRIST THE RESULTS SO FAR ARE TERRIFYING

fuckyeahforensics

The above images show the 9,000 year old excavated skeletons of a Neolithic woman and an infant buried with her. Researchers discovered tuberculosis on the bones. That makes this woman and her infant the oldest known and confirmed TB cases. Their remains were found submerged in the Mediterranean Sea, off the coast of Israel, where the ancient Atlit-Yam village once existed.

neurosciencestuff

Shakespeare and Wordsworth boost the brain, new research reveals

Scientists, psychologists and English academics at Liverpool University have found that reading the works of the Bard and other classical writers has a beneficial effect on the mind, catches the reader’s attention and triggers moments of self-reflection.

Using scanners, they monitored the brain activity of volunteers as they read works by William Shakespeare, William Wordsworth, T.S Eliot and others.

They then “translated” the texts into more “straightforward”, modern language and again monitored the readers’ brains as they read the words.

Scans showed that the more “challenging” prose and poetry set off far more electrical activity in the brain than the more pedestrian versions.

Scientists were able to study the brain activity as it responded to each word and record how it “lit up” as the readers encountered unusual words, surprising phrases or difficult sentence structure.

This “lighting up” of the mind lasts longer than the initial electrical spark, shifting the brain to a higher gear, encouraging further reading.

The research also found that reading poetry, in particular, increases activity in the right hemisphere of the brain, an area concerned with “autobiographical memory”, helping the reader to reflect on and reappraise their own experiences in light of what they have read. The academics said this meant the classics were more useful than self-help books.

Philip Davis, an English professor who has worked on the study with the university’s magnetic resonance centre, will tell a conference this week: “Serious literature acts like a rocket-booster to the brain.

“The research shows the power of literature to shift mental pathways, to create new thoughts, shapes and connections in the young and the staid alike.”