Current Plasma Membrane News and Events

Current Plasma Membrane News and Events, Plasma Membrane News Articles.
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Parkinson's disease risk and severity is tied to a channel in cells' 'recycling centers
Genetic variations associated with both increases and reductions in risk of the neurodegenerative disease alter the action of ion channels within cellular organelles called lysosomes, a new Penn study finds. (2021-01-27)

Focusing on field analysis
One potential approach to developing a low-cost portable microscopy system is to use transparent microspheres in combination with affordable low-magnification objective lenses to increase image resolution and sensitivity. (2021-01-27)

The longevity gene mammalian Indy (mINDY) is involved in blood pressure regulation
Reduced expression of mINDY, which is known to extend life span in lower organisms and to prevent from diet induced obesity, fatty liver and insulin resistance in mice, has now been shown to lower blood pressure and heart rate in rodents. (2021-01-26)

Nanomedicine's 'crown' is ready for its close up
An international team of researchers led by Michigan State University's Morteza Mahmoudi has developed a new method to better understand how nanomedicines -- emerging diagnostics and therapies that are very small yet very intricate -- interact with patients' biomolecules. (2021-01-25)

Titanium oxide nanotubes facilitate low-cost laser-assisted photoporation
Toyohashi University of Technology developed a nanosecond pulse laser-assisted photoporation method using titanium-oxide nanotubes (TNTs) for highly efficient and low-cost intracellular delivery. HeLa - human cervical cancer cells were cultured in the nanotubes and submerged in a solution of biomolecules. After cells were exposed to nanosecond pulse laser, we successfully delivered propidium iodide (PI) and fluorescent dextran into cells with high efficiency and cell viability. (2021-01-25)

Anti-freeze for cell membranes
Mosses and flowering plants took different genetic routes to evolve a similar defense mechanism. (2021-01-25)

Rhesus macaques develop promising immune response to SARS-CoV-2
In a promising result for the success of vaccines against COVID-19, rhesus macaque monkeys infected with the human coronavirus SARS-CoV-2 developed protective immune responses that might be reproduced with a vaccine. (2021-01-22)

Targeted coating improves graphene oxide membranes for nanofiltration
A research group led by Prof. WAN Yinhua from the Institute of Process Engineering (IPE) of the Chinese Academy of Sciences developed a stable graphene oxide nanofiltration membrane with uniform pore size to remove organic micropollutants. (2021-01-22)

ECMO/CRRT in the treatment of critically ill SARS-CoV-2 pneumonia patients
In a new publication from Cardiovascular Innovations and Applications; DOI, Hai Zou and Shengqing Li from the Institute of Pulmonary and Critical Care Medicine, Huashan Hospital, Fudan University, Shanghai, China consider ECMO/CRRT combined support in the treatment of critically ill SARS-CoV-2 pneumonia patients. (2021-01-22)

How cells 'eat' their own fluid components
Autophagy is a fundamental cellular process by which cells capture and degrade their own dysfunctional or superfluous components for degradation and recycling. Recent research has revealed that phase separated droplets have a range of important functions in cells. An international collaboration between German, Norwegian, and Japanese researchers has unravelled the mechanisms underpinning both how these droplets are captured through autophagy, as well as how droplets can serve as a platform from which structures facilitating cytosolic autophagy arise. (2021-01-21)

New eco-friendly way to make ammonia could be boon for agriculture, hydrogen economy
Ammonia has sustained humanity since the early 20th century, but its production leaves a huge carbon footprint. Now researchers have found a way to make it 100 per cent renewable. (2021-01-21)

Taking sieving lessons from nature
Nanostructure-templated electrochemical polymerization enhances speed and selectivity in organic membrane-based processes. (2021-01-21)

Researchers make domestic high-performance bipolar membranes possible
A team led by Prof. XU Tongwen and Prof WU Liang from the University of Science and Technology of China (USTC) of the Chinese Academy of Sciences (CAS) adopted an in-situ growth idea to construct a stable and efficient membrane (2021-01-21)

COVID-19 infection in immunodeficient patient cured by infusing convalescent plasma
Under FDA emergency-use authorization, doctors successfully resolved COVID-19 in a seriously ill, immunodeficient woman using a very high-neutralizing antibody-titer convalescent plasma from a recovered COVID-19 patient. However, further study suggested that use of convalescent plasma may not be warranted in many cases, for two reasons: 1) titer levels are too low in many convalescent plasmas, and 2) there are high endogenous neutralizing antibody titers already present in COVID-19 patients prior to infusion. (2021-01-21)

Highly functional membrane developed for producing freshwater from seawater
Researchers at Kobe University's Research Center for Membrane and Film Technology have successfully developed a new desalination membrane by laminating a two-dimensional carbon material on to the surface of a porous polymer membrane. This membrane has the potential to perform highly efficient desalination because it is possible to control the gaps between its nanosheets and the charge on the nanosheets' surfaces. It is hoped that this research will contribute towards the implementation of futuristic desalination membranes. (2021-01-21)

Message in a bottle: Info-rich bubbles respond to antibiotics
In a new study, Luis H. Cisneros and his colleagues describe the effects of antibiotics on membrane vesicles, demonstrating that such drugs actively modify the properties of vesicle transport. Under the influence of antibiotics, MVs were produced and released by bacteria in greater abundance and traveled faster and further from their origin. The work sheds new light on these important information-carrying entities, implicated in many cellular communication processes, including antibiotic resistance. (2021-01-20)

Experimental evidence of an intermediate state of matter between a crystal and a liquid
Scientists from the Joint Institute for High Temperatures Russian Academy of Sciences (JIHT RAS) and Moscow Institute of Physics and Technology (MIPT) have experimentally confirmed the presence of an intermediate phase between the crystalline and liquid states in a monolayer dusty plasma system. (2021-01-19)

Study identifies a nonhuman primate model that mimics severe COVID-19 similar to humans
Aged, wild-caught African green monkeys exposed to the SARS-CoV-2 virus developed acute respiratory distress syndrome (ARDS) with clinical symptoms similar to those observed in the most serious human cases of COVID-19, report researchers in The American Journal of Pathology, published by Elsevier. This is the first study to show that African green monkeys can develop severe clinical disease after SARS-CoV-2 infection, suggesting that they may be useful models for the study of COVID-19 in humans. (2021-01-19)

Parkinson's: Initial steps to show nerves their growth direction magnetically
One reason why nerve damage in the brain cannot regenerate easily is that the neurites do not know in which direction they should grow. A team of researchers from Ruhr-Universität Bochum (RUB), Sorbonne University Paris, and the Technische Universität Braunschweig is now working on showing them the direction using magnetic nanoparticles. (2021-01-18)

A master cancer gene hijacks a 'molecular crowbar' to make breast cancer cells invasive
Researchers investigated how cancer genes lead to the breakdown of the capsule that prevents cancerous cells from invading the surrounding healthy tissues and - find a hijacked ''molecular crowbar''. The new findings help understand the mechanisms of cancer spreading and reveal a cancer vulnerability. (2021-01-18)

Basis for the essential cellular powerhouses
Researchers have solved the operating mode of the barrel pore protein assembly in the mitochondrial outer membrane (2021-01-15)

A rift in the retina may help repair the optic nerve
In experiments in mouse tissues and human cells, Johns Hopkins Medicine researchers say they have found that removing a membrane that lines the back of the eye may improve the success rate for regrowing nerve cells damaged by blinding diseases. (2021-01-14)

Not as simple as thought: How bacteria form membrane vesicles
Researchers from the University of Tsukuba identified a novel mechanism by which bacteria form membrane vesicles, which bacteria employ to communicate with each other or to defend themselves against antibiotics. By studying mycolic acid-containing bacteria (MCB), which also includes tuberculosis-causing bacteria, the researchers demonstrated that environmental stimuli dictate the route by which the MCB form membrane vesicles. Further, their observations were consistent among various MCB. This study has implications for vaccine development as well as novel therapies. (2021-01-14)

A new study identifies possible biomarkers of severe malaria in African children
The analysis identified a series of small molecules called microRNAs that are released as a result of organ damage and are associated with disease severity (2021-01-13)

Could we harness energy from black holes?
Physicists have found a new way to extract energy from black holes by breaking and rejoining magnetic field lines near the event horizon. (2021-01-13)

Antibiotic resistance from random DNA sequences
An important and still unanswered question is how new genes that cause antibiotic resistance arise. In a new study, Swedish and American researchers have shown how new genes that produce resistance can arise from completely random DNA sequences. The results have been published in the journal PLOS Genetics. (2021-01-08)

Bioenergetics: New features of ATP synthase
Structural studies of a mitochondrial ATP synthase illustrate the basis for the diversity of its membrane-shaping properties. (2021-01-08)

A prognostic Alzheimer's disease blood test in the symptom-free stage
Using a blood test, a German-Dutch research team has predicted the risk of Alzheimer's disease in people who were clinically diagnosed as not having Alzheimer's disease but who perceived themselves as cognitively impaired (Subjective Cognitive Declined, SCD). The researchers analyzed blood samples from an SCD cohort supervised at the Alzheimer Center Amsterdam. Using a test developed in Bochum, they identified all 22 subjects at study entry who developed Alzheimer's dementia, thus the clinical symptoms, within six years. (2021-01-06)

Detecting CRISPR/Cas gene doping
All athletes want to be at the top of their game when they compete, but some resort to nefarious approaches to achieve peak muscle growth, speed and agility. Recent developments in gene editing technology could tempt athletes to change their DNA to get an edge. Now, researchers reporting in ACS' Analytical Chemistry demonstrate first steps toward detecting this type of doping both in human plasma and in live mice. (2021-01-06)

HKUST researchers discover a novel mechanism of recruiting ARF family proteins to specific subcellul
Researchers of the Hong Kong University of Science and Technology (HKUST) recently uncovered a novel molecular mechanism that regulates the subcellular localizations of Arf proteins, shedding light on the mechanism underlying various inherited diseases and offering new insight to the treatment of them. (2021-01-05)

Controlling the nanoscale structure of membranes is key for clean water, researchers find
A desalination membrane acts as a filter for salty water: push the water through the membrane, get clean water suitable for agriculture, energy production and even drinking. The process seems simple enough, but it contains complex intricacies that have baffled scientists for decades -- until now. Researchers from Penn State, The University of Texas at Austin, Iowa State University, Dow Chemical Company and DuPont Water Solutions published a key finding in understanding how membranes actually filter minerals from water, online today (Dec. 31) in Science. (2020-12-31)

Desalination breakthrough could lead to cheaper water filtration
Producing clean water at a lower cost could be on the horizon after researchers from The University of Texas at Austin and Penn State solved a complex problem that has baffled scientists for decades, until now. (2020-12-31)

Researchers measure, model desalination membranes to maximize flow, clean more water
A team of researchers -- including engineers from Iowa State University -- have used transmission electron microscopy and 3D computational modeling to quantify and visualize why some desalination membranes work better than others. (2020-12-31)

Novel public-private partnership facilitates development of fusion energy
PPPL working in coordination with MIT's Plasma Science and Fusion Center and Commonwealth Fusion Systems to develop a unique tokamak fusion device called ''SPARC.'' (2020-12-30)

Bionic idea boosts lithium-ion extraction
Chinese researchers from Prof. WEN Liping's team at the Technical Institute of Physics and Chemistry and Prof. ZHANG Qianfan's team from Beihang University have recently made progress in the preparation and application of a bioinspired material that is capable of achieving controlled ion transport and sieving, especially for lithium-ion extraction. (2020-12-30)

Protein twist and squeeze confers cancer drug resistance
In 1986, cellular biochemist Kazumitsu Ueda, currently at Kyoto University's Institute for Integrated Cell-Material Sciences (iCeMS), discovered that a protein called ABCB1 could transport multiple chemotherapeutics out of some cancer cells, making them resistant to treatment. How it did this has remained a mystery for the past 35 years. Now, his team has published a review in the journal FEBS Letters, summarizing what they have learned following years of research on this and other ATP-binding cassette (ABC) transporter proteins. (2020-12-29)

HKU chemists develop a new drug discovery strategy for "undruggable" drug targets
A research team led by Dr Xiaoyu LI from the Research Division for Chemistry, Faculty of Science, in collaboration with Professor Yizhou LI from School of Pharmaceutical Sciences, Chongqing University and Professor Yan CAO from School of Pharmacy, Second Military Medical University in Shanghai has developed a new drug discovery method targeting membrane proteins on live cells. (2020-12-28)

The liverwort oil body is formed by redirection of the secretory pathway
In the study published in Nature Communications, the evolutionary relationship between two different organelles in liverwort cells has been revealed: the cell plate, which divides cells during cell division, and the oil body, which is a reservoir for various chemical substances. (2020-12-28)

The ABCs of species evolution
Almost four decades of research have led scientists at Japan's Institute for Integrated Cell-Material Sciences (iCeMS) to propose that a family of transporter proteins has played an important role in species evolution. One protein in particular, called ABCA1, was likely crucial for vertebrate evolution by helping regulate when signals involved in cell proliferation, differentiation and migration enter a cell. This process was necessary for vertebrates to develop into more complex organisms with sophisticated body structures. (2020-12-23)

Christmas trees can be green because of a photosynthetic short-cut
How can conifers that are used for example as Christmas trees keep their green needles over the boreal winter when most trees shed their leaves? Science has not provided a good answer to this question but now an international team of scientists, including researchers from Umeå University, has deciphered that a short-cut in the photosynthetic machinery allows the needles of pine trees to stay green. The study was published in the journal Nature Communications. (2020-12-23)

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