Hair loss might be prevented by regulating stem cell metabolism — ScienceDaily

Hair follicle stem cells, which promote hair growth, can prolong their life by switching their metabolic state. In experiments conducted with mice, a research group active in Helsinki and Cologne, Germany, has demonstrated that a protein called Rictor holds a key role in the process.

The study was published in the Cell Metabolism journal.

Mechanisms that regulate stem cells

Ultraviolet radiation and other environmental factors damage our skin and other tissues every day, with the body continuously removing and renewing the damaged tissue. On average, humans shed daily 500 million cells and a quantity of hairs weighing a total of 1.5 grams.

The dead material is replaced by specialised stem cells that promote tissue growth. Tissue function is dependent on the activity and health of these stem cells, as impaired activity results in the ageing of the tissues.

“Although the critical role of stem cells in ageing is established, little

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New England Cancer Specialists will soon offer scalp-cooling technology to help reduce hair loss in cancer patients

By Chiara Battelli MD, President & Lead Physician at New England Cancer Specialists

A cancer diagnosis can change many things about our lives. As patients move forward with their doctor to examine treatment options, one of the major concerns they express is hair loss associated with chemotherapy. Unfortunately, it is hard to predict who will lose their hair even though it is a common and significant side effect of cytotoxic chemotherapy. Studies have shown that hair loss during cancer treatment can lead to lower self-esteem and feelings of depression, ultimately causing up to 10% of patients to forego chemotherapy.

Chemotherapy drugs damage hair follicles in a variety of ways: some drugs cause hair thinning or hair loss only on the scalp, while others can cause hair to thin or fall out on the arms, legs, underarms, eyebrows, or eyelashes. If a person is going to lose hair during treatment, it

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Texas Tech drops third-straight Big 12 game in 31-15 loss to No. 24 Iowa State

AMES, Iowa (AP) — With an offense that did just about whatever it wanted and a defense that was dominant deep into the game, No. 24 Iowa State put away Texas Tech to get out to its best start in Big 12 play in 18 years.

Brock Purdy passed for 302 yards and two touchdowns, Breece Hall rushed for 135 yards and two scores, and the Cyclones won 31-15 Saturday for their fifth straight win over the Red Raiders.

Iowa State remained tied with Kansas State atop the Big 12 standings and have won three straight to open conference play for the first time since 2002 and only the second time since 1950.

It was Iowa State’s most complete performance this season, but coach Matt Campbell said there is plenty to clean up before the Cyclones (3-1, 3-0 Big 12) head to No. 10 Oklahoma State after an open date

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Virginia Tech helpless to stop North Carolina in first loss of the 2020 season |

Virginia Tech vs. UNC Chapel Hill, N.C.

HOW THEY SCORED

Virginia Tech 0 14 23 8 — 45

North Carolina 21 14 7 14 — 56

First Quarter

NC—Williams 1 run (Atkins kick), 10:22.

NC—D.Brown 37 pass from Howell (Atkins kick), 7:52.

NC—Williams 19 run (Atkins kick), 4:09.

Second Quarter

VT—Mitchell 1 run (B.Johnson kick), 14:13.

VT—Herbert 8 run (B.Johnson kick), 6:28.

NC—Newsome 6 run (Atkins kick), 4:17.

NC—D.Brown 43 pass from Howell (Atkins kick), :16.

Third Quarter

VT—FG B.Johnson 55, 9:55.

NC—Carter 16 run (Atkins kick), 7:14.

VT—Hooker 5 run (B.Johnson kick), 5:58.

VT—Herbert 52 run (B.Johnson kick), 5:04.

VT—T.Robinson 33 pass from Hooker (run failed), :15.

Fourth Quarter

NC—Newsome 12 pass from Howell (Atkins kick), 12:37.

NC—Carter 62 run (Atkins kick), 8:49.

VT—Mitchell 26 pass from Hooker (Hooker run), 5:20.

A—3,535.

———

TEAM STATISTICS

VT NC

First downs 25 31

Rushes-yards 48-260 43-399

Passing 235 257

Comp-Att-Int 15-29-0

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Virginia Tech helpless to stop North Carolina in first loss of the 2020 season | Virginia Tech

Running back Khalil Herbert made his presence felt in the quarter as well with a 52-yard touchdown run. Herbert converted the third and eight by weaving his way through the secondary to go over 100-yards for the third straight game.

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The Hokies held onto the ball for nearly 11 minutes in the third quarter, but still couldn’t overcome the 21 points they spotted UNC in the first quarter. 

North Carolina went straight down the field on their first three possessions to take a 21-0 lead while averaging 9.7 yards per play.

Howell was near perfect in the quarter going 10 of 12 for 123 yards with a 37-yard touchdown pass to Brown. Brown, who beat Tech cornerback Armani Chatman down the field, was able to get one foot down at the back of the end zone for the score.

Williams

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Meltwater lakes are accelerating glacier ice loss — ScienceDaily

Meltwater lakes that form at glacier margins cause ice to recede much further and faster compared to glaciers that terminate on land, according to a new study. But the effects of these glacial lakes are not represented in current ice loss models, warn the study authors.

Therefore, estimates of recession rates and ice mass loss from lake-terminating glaciers in the coming decades are likely to be under-estimated.

Many mountain glaciers now terminate in such lakes, formed as meltwater becomes trapped behind ridges of glacier debris. They are known as proglacial lakes. Climate change has increased glacier melt worldwide and this in turn has led to a dramatic increase in the size and number of proglacial lakes. But the effects of proglacial lakes on the rates of deglaciation and on glacier behaviour have previously been poorly understood.

Now, an international team of researchers, led by the University of Leeds, has quantified

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Proglacial lakes are accelerating glacier ice loss

Proglacial lakes are accelerating glacier ice loss
Credit: Dr Jenna Sutherland

Meltwater lakes that form at glacier margins cause ice to recede much further and faster compared to glaciers that terminate on land, according to a new study. But the effects of these glacial lakes are not represented in current ice loss models, warn the study authors.


Therefore, estimates of recession rates and ice mass loss from lake-terminating glaciers in the coming decades are likely to be under-estimated.

Many mountain glaciers now terminate in such lakes, formed as meltwater becomes trapped behind ridges of glacier debris. They are known as proglacial lakes. Climate change has increased glacier melt worldwide and this in turn has led to a dramatic increase in the size and number of proglacial lakes. But the effects of proglacial lakes on the rates of deglaciation and on glacier behavior have previously been poorly understood.

Now, an international team of researchers, led by the University

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Arctic odyssey ends, bringing home tales of alarming ice loss

The biggest Arctic expedition in history will return to the German port of Bremerhaven on Monday after a year-long mission, bringing home observations from scientists that sea ice is melting at a “dramatic rate” in the region.

Coronavirus restrictions mean there will be no grand fanfare when the German Alfred Wegener Institute’s Polarstern ship docks.

But the information gathered by researchers as the ship drifted through the ocean trapped in ice will be vital to helping scientists understand the effects of climate change.

In the summer, the researchers saw for themselves the dramatic effects of global warming on ice in the region, considered “the epicentre of climate change”, according to mission leader Markus Rex.

“We could see broad stretches of open water reaching nearly to the Pole, surrounded by ice that was riddled with holes produced by massive melting,” Rex said.

His sobering conclusion: “The Arctic ice is disappearing at

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EasyJet warns first ever annual loss could top $1 billion

By Sarah Young

LONDON (Reuters) – British airline easyJet warned on Thursday its first ever annual loss could be as much as 845 million pounds ($1.1 billion) as the pandemic meant it was flying just 25% of planned capacity.

The airline has signalled to the government it may need more financial support, according to media reports.

The headline loss before tax forecast for the year ended Sept. 30 of 815-845 million pounds was worse than the loss of 794 million expected by analysts, Refinitiv Eikon data showed.

That is the first time easyJet, which was founded in 1995, has ever made a full-year loss.

With travel at very low levels, most European airlines are bleeding cash. EasyJet’s larger low-cost rival Ryanair has called this winter a “write-off”.

EasyJet said ongoing travel restrictions meant it would fly just 25% of planned capacity for the rest of 2020, behind Ryanair which is

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Greenland ice loss worst in 12,000 years

Ice loss from Greenland’s massive ice sheet will cause sea levels to rise more during the 21st century than they have during any 100-year period in the last 12,000 years, even if global warming is held in check, scientists said Wednesday.

The study — based on ice core data and models and published in the journal Nature — is the first to painstakingly reconstruct Greenland’s ice loss record over the entire course of the Holocene, the geological epoch that has allowed civilisation to flourish.

It found that if greenhouse gas emissions continue unabated, the kilometres-thick ice block will shed some 36 trillion tonnes of mass from 2000 to 2100, enough to lift the global ocean waterline by 10 centimetres.

Until the late 1990s, Greenland’s ice sheet was roughly in balance, gaining as much mass through snowfall as it lost in summer from crumbling glaciers and melt-off.

But accelerating climate change

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