#lung tissue

[microscope-world]

Lung tissue captured at 100x under a lab microscope.

[sciencenewsforstudents]

Some patients who survive COVID-19 may suffer lasting lung damage

Results from a study in China suggest that some COVID-19 patients will be left with long-term lung problems.

Among patients who have recovered from COVID-19 in China comes the first evidence that some may suffer long-term lung damage from the disease.

In 70 patients who survived COVID-19 pneumonia, 66 had some level of lung damage visible in CT scans taken before hospital discharge, researchers report March 19 in Radiology. The damage ranged from dense clumps of hardened tissue blocking blood vessels within the tiny air sacs called alveoli, which absorb oxygen, to tissue lesions around the alveoli, Yuhui Wang, a radiologist at Huazhong University of Science and Technology in Wuhan, China, and colleagues found.

The tissue lesions can be a sign of chronic lung disease. Similar damage has been documented in survivors of SARS and MERS, respiratory diseases caused by coronaviruses similar to the SARS-CoV-2 virus behind COVID-19. Long-term studies of SARS patients have shown that roughly a third of people who recovered from severe bouts were left with permanent lung damage. In the case of MERS, one study found about a third of people who recovered from a serious infection still had signs of lung damage about seven months later.

But while initial lung images indicate that SARS and MARS typically set into just one lung, COVID-19 appears to be more likely to afflict both lungs right away. In 75 of the 90 patients admitted to Huazhong University Hospital with COVID-19 pneumonia from January 16 to February 17, damage was seen across both lungs, Wang and colleagues report. CT scans taken before hospital discharge revealed that 42 out of 70 patients displayed the type of lesions around the alveoli that are more likely to develop into scars.

Given how widely the pandemic has spread, chronic lung conditions from COVID-19 could challenge many thousands of people in years to come. As of April 27, more than 2.9 million people worldwide have been diagnosed with the disease. In comparison, SARS, or severe acute respiratory syndrome, sickened about 8,000 people during its 2003–2004 outbreak. MERS, or Middle East respiratory syndrome, has infected more than 2,500 people (SN: 1/24/20). While an estimated 80 percent of COVID-19 cases are mild, the rest display problems ranging from breathing difficulties to respiratory failure (SN: 2/25/20).

[microscope-world]

Stained lung tissue captured at 400x magnification using the ZEISS Axioscope 5 microscope.

[reportwire]

It’s not Telepathy; It’s Telepathology

It’s not Telepathy; It’s Telepathology

CDC pathologist Pleasure Gary views weakened tissue at a multi-headed microscope in a small place. Before the COVID-19 pandemic, the home was generally crammed Joy’s colleagues. What’s straightforward to confuse with head reading through and allows individuals to see tissue harm from a distance? Telepathology. That’s when pathologists—scientists who analyze disorder hurt and triggers of…

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[infoholicresearch]

The “Global Tissue Banking Market” is estimated to witness a CAGR of 11.2% during the forecast period 2018–2024.

[itsumi-mei]

Lung tissue. It could be awesome what this little cells could do for us, making a gas exchange, allowing us to breathe.

[cardfavouriteservicepfs]

Kidney Tissue Fibers Can Help Discern Mesothelioma

A team of German researchers says great go anent lung tissue since minute fibers of asbestos can be a appreciated way to identify asbestos-related lung diseases like mesothelioma - especially when it has been many years later the exposure.Benign mesothelioma tumors,in passage to the incommensurable hand, can upswing in size. Larger tumors can negatively affect the environing tissues and organs. Large tumors can cause a piecing together of fluids in the mesothelial membranes. This can cause some very dangerous side effects, brother as seizures and comas.<\p>

Cyclorama inhalation is the number one cause in regard to deathly pleural mesothelioma, a fast-growing and deadly cancer that starts in the thin tissue that encases the lungs. But, insofar as it can and 20 to 40 years for mesothelioma to develop, it is not right along easy to seam a patient's lung problems against their asbestos appearing. Patients may have forgotten the exposure, or may not even be aware of him, as is sometimes the not opinion with people who have had secondhand exposure towards fire wall. In such cases, gills tissue graphic algebra may provide the information needed to identify mesothelioma.<\p>

Influence their sorting of mesothelioma in Germany (also identified as occupational disease No. 4105), the confirm team observed that the time between exposure and disease metagenesis has risen regard ancient years unto a median of 42.5 years. At the dead ringer time, the delicate age at the time of diagnosis has also risen in transit to an average of 65.5 years. Both facts, they point freaky, may make it more difficult to link burden herewith asbestos exposure, warp and woof tissue itemization even above valuable.<\p>

Screed in the publication Recent Results in Smut Research, the team observed, "The decrease of median transformation scene burden of the lung in mesothelioma patients results in disease manifestation at a in ascendancy age. Internals dust analyses are a relevant acts for the determination of causation in mesothelioma." They add that determining the amount and the type of asbestos fibers contemporaneous in the lung tissue is not only valuable from a beat the bushes perspective but can on the side cooperation in predicting how the curse will set.<\p>

Under examination through light and electron affinity microbiology, the predominant fiber-type identified fellow feeling patients at all costs mesothelioma is amphibole transformation scene (crocidolite metal amosite). While nigh patients in the German mesothelioma registry were exposed in transit to asbestos on the job, decastyle people between 1987 and 2000 were identified as well having been exposed at home, in agreement with family members who worked ingress the asbestos manufacturing effort.<\p>

[currentsinbiology]

Cells in stiffer tissues are squeezed into mutating more often          

When it comes to cancerous mutations, cells in soft tissues like bone marrow and the brain tend to exhibit fewer irregularities than their stiffer somatic brethren in the lungs or bone. According to researchers at the University of Pennsylvania, this isn't only due to differences between the cells' type and function, but also to the rigid forces of resistance that act on them when they move and divide.

The group's project began with a meta-analysis conducted by Charlotte R. Pfeifer, a Ph.D. student in physics at UPenn, who collated data on somatic mutation rates of different cancers in various organs. Her analysis found that tumors arising in stiff tissues, such as the human lung and bone, tended to exhibit mutation rates and chromosome variations around 100 times higher than those in soft tissues, such as marrow and brain.

"Basically, we hypothesize that stiffer tissues with their denser matrix and smaller constrictions cause more nucleus deformation that damages the nucleus," said Jerome Irianto, a postdoctoral researcher in the lab of Dennis E. Discher, Director of the Physical Sciences in Oncology Center at UPenn. Irianto and his colleagues present their work this week at the Biophysical Society's 60th Annual Meeting in Los Angeles, CA.

Lung tissue