Tag: Parkinsons

Monthly Research Review – August 2023

~ Simon ~ 2 Comments

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At the end of each month the SoPD writes a post which provides an overview of some of the major pieces of Parkinson’s-related research that were made available during August 2023.

The post is divided into 10 parts based on the type of research:

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So, what happened during August 2023?

In world news:

August 1- The world’s oceans reached a new record high temperature of 20.96 °C, exceeding the previous record in 2016.

 

August 8th – Christopher Lunsford (artist name: Oliver Anthony) released the single “Rich Men North of Richmond” independently, and it debuted at number 1 on the Billboard Hot 100 after going viral on YouTube:

 

August 14th – Researchers reported the first ever image of quantum entanglement (Click here and here to read more about this).

 

August 19th – As 1/4 of people going to the beach in the United Kingdom are avoiding swimming due to raw sewage releases, the UK Environment Agency (whose funding has been cut by 50% over the last 10 years – source) announced that nationwide annual health check of England’s water bodies which used to take place annually, will now take six years to complete (Click here to read more about this).

 

August 23rd – India’s Chandrayaan-3 becomes the first spacecraft to land near the south pole of the Moon, carrying a lunar lander named Vikram and a lunar rover named Pragyan.

 

In the world of Parkinson’s research, a great deal of new research and news was reported:

In August 2023, there were 831 research articles added to the Pubmed website with the tag word “Parkinson’s” attached (7,379 for all of 2023 so far). In addition, there was a wave to news reports regarding various other bits of Parkinson’s research activity (clinical trials, etc).

The top 8 pieces of Parkinson’s news

Continue reading “Monthly Research Review – August 2023” →

Manifesting non-manifesting carriers

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The discovery of genetic risk factors for Parkinson’s has been very useful for the research community as they point towards associated biological pathways that could potentially be targeted for therapeutic intervention.

They also represent a topic of concern for the Parkinson’s community, who worry about passing on possible risk to their children and subsequent generations. The penetrance (which refers to the proportion of people with a particular genetic variant who ever actually exhibit signs and symptoms of a particular condition) of many of these risk factors has, however, been found to be mixed, which has helped to confuse the matter. 

Recently, researchers have been exploring assays and biomarkers related to some of these genetic risk factors to see if we can determine who is likely to go on and develop Parkinson’s compared to “non-manifesting carriers” of the genetic risk factors. 

In today’s post, we will discuss what is meant by terms like “penetrance” and “non-manifesting carriers”, and we will review some of the latest research in this area.

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Source: Businesstoday

This year represents the 25th anniversary since the discovery that tiny variations in a region of DNA called the “PARKIN gene” may increase the risk of developing Parkinson’s.

On the 9th April, 1998, this report was published in the journal Nature:

Title: Mutations in the parkin gene cause autosomal recessive juvenile parkinsonism.
Authors: Kitada T, Asakawa S, Hattori N, Matsumine H, Yamamura Y, Minoshima S, Yokochi M, Mizuno Y, Shimizu N
Journal: Nature. 1998 Apr 9; 392(6676):605-8
PMID: 9560156

This study highlighted 5 cases of ‘juvenile’ Parkinsonism from three unrelated Japanese families, in which genetic variations were found in the PARKIN gene. This finding came less than a year after the first genetic risk factor for Parkinson’s – in the alpha synuclein gene – had been announced (Click here to read a SoPD post about this).

It was an exciting time for Parkinson’s research as these new risk factors were pointing towards particular biological pathways that could be explored in the context of Parkinson’s (and manipulated for potentially therapeutic purposes).

Over the next 10-15 years, there was a genetic gold rush as researchers identified over 80 regions of DNA in which genetic variations (tiny alterations in the G,A,T & C coding) that increased one’s risk of developing PD (Click here to read a SoPD post on this topic).

But rather than being a genetic disease (a condition driven by a specific genetic cause), it quickly became apparent that the level of penetrance in Parkinson’s was not 100%, and questions started to be asked as to why.

What do you mean by “penetrance”?

Continue reading “Manifesting non-manifesting carriers” →

Monthly Research Review-July 2023

~ Simon ~ 1 Comment

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At the end of each month the SoPD writes a post which provides an overview of some of the major pieces of Parkinson’s-related research that were made available during July 2023.

The post is divided into 10 parts based on the type of research:

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So, what happened during July 2023?

In world news:

July 4th – Toyota announced the development of a new type of solid-state battery for electric vehicles that will allow them to travel 1200km (745 miles) and charges within 10 minutes (Click here to read more about this).

 

July 14th – The Screen Actors Guild and American Federation of Television and Radio Artists announced it will begin an ongoing strike against the major film and TV studios in protest of low compensation, the lack of ownership of their work, and the threat of generative AI on their jobs.

 

July 20th – The 2023 FIFA Women’s World Cup started in Australia and New Zealand.

 

July 19th – Astronomers report the discovery of a bizarre ‘two-faced’ star, with one side made up of hydrogen and the other consisting of helium. The object, designated ZTF J203349.8+322901.1 (nicknamed “Janus”), is a white dwarf located about 1,000 light years away (Click here to read more about this).

 

July 23rd – Below is an image of the interior ceiling of the cathedral in Odesa (Ukraine) before Russian bombs struck it on this date… high tech, strategic targeting indeed (Click here to read more about this).

 

In the world of Parkinson’s research, a great deal of new research and news was reported:

In July 2023, there were 1,024 research articles added to the Pubmed website with the tag word “Parkinson’s” attached (6,548 for all of 2023 so far). In addition, there was a wave to news reports regarding various other bits of Parkinson’s research activity (clinical trials, etc).

The top 6 pieces of Parkinson’s news

Continue reading “Monthly Research Review-July 2023” →

The UP Study results

~ Simon ~ 2 Comments

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Preclinical data have suggested that the bile acid Ursodeoxycholic acid (or UDCA) has neuroprotective properties in models of Parkinson’s.

Researchers in Sheffield have led much of this research and they have also been coordinating a clinical trial assessing this molecule in people with Parkinson’s.

The study was called the “UDCA in Parkinson’s” trial (or UP Study) and the results were recently published.

In today’s post, we will explore the history of UDCA research, review the results of the UP study, and discuss what could happen next.

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Prof Heather Mortiboys. Source: Dementiaresearcher

Every good lab bench-to-clinical trial story starts somewhere.

There is an initiating moment, which is probably irrelevant to most of the people present at the time, but it becomes life-defining for others. In the case of today’s post, that moment occurred while Prof Heather Mortiboys was was sitting in a lecture during the last year of her undergraduate degree in University.

The lecturer said that although our knowledge and understanding of what happens in Parkinson’s has increased significantly, there are still no treatments to prevent or slow the condition.

Heather couldn’t understand this.

She wondered how much more knowledge could be gained without actually identifying new treatments? And from that moment onwards she has pursued a research career in Parkinson’s research (and we are lucky for it!).

After receiving her PhD in Neuroscience (summa cum laude) from the International Max Planck Institute in Dresden (Germany), she moved to the Neuroscience department at the University of Sheffield in 2006 to work with Prof Oliver Bandmann.

Prof Oliver Bandmann. Source: Sheffield

And in 2013, they published the results of a large screening study that identified a very interesting molecule.

This was the research report in question:

brain

Title: Ursocholanic acid rescues mitochondrial function in common forms of familial Parkinson’s disease
Authors: Mortiboys H, Aasly J, Bandmann O.
Journal: Brain. 2013 Oct;136(Pt 10):3038-50.
PMID: 24000005

What was the interesting molecule?

Continue reading “The UP Study results” →

Monthly Research Review – May 2023

~ Simon ~ 1 Comment

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At the end of each month the SoPD writes a post which provides an overview of some of the major pieces of Parkinson’s-related research that were made available during May 2023.

The post is divided into 10 parts based on the type of research:

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So, what happened during May 2023?

In world news:

May 1st – San Francisco-based First Republic Bank failed and was auctioned off by the US FDIC to JPMorgan Chase for $10.7 billion. The collapse surpassed March’s failure of Silicon Valley Bank to become the second largest in US history.

 

May 3rd – Pharmaceutical company Eli Lilly reports that the beta amyloid targeting antibody treatment donanemab can slow the pace of Alzheimer’s by 35%, following a Phase 3 study in human patients (Click here to read more about this).

May 6th – The coronation of Charles III as King of the United Kingdom and the other Commonwealth realms took place in Westminster Abbey, London (sorry, but the video below appeals to the republican in me).

 

May 11th – The discovery of 62 new moons of Saturn was reported, taking its total confirmed number to 145 and overtaking Jupiter (Click here to read more about this).

 

May 25th – Artificial intelligence was reported to have designed a new antibiotic, effective against Acinetobacter baumannii, a species of bacteria that is often found in hospitals and can lead to pneumonia, meningitis, and other serious infections (Click here to read more about this).

 

In the world of Parkinson’s research, a great deal of new research and news was reported:

In May 2023, there were 872 research articles added to the Pubmed website with the tag word “Parkinson’s” attached (4,512 for all of 2023 so far). In addition, there was a wave to news reports regarding various other bits of Parkinson’s research activity (clinical trials, etc).

The top 5 pieces of Parkinson’s news

Continue reading “Monthly Research Review – May 2023” →

The seeds of change

~ Simon ~ 6 Comments

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The diagnostic process for Parkinson’s has been problematic for a long time. Individuals presenting the symptoms often need several clinical evaluations, and confirmation using a brain imaging technique.

A biological test for the condition has been lacking and would help tremendously.

Recently, however, research (supported by the Michael J Fox Foundation for Parkinson’s research) has indicated that this could be about to change.

In today’s post, we will explore recently published research highlighting a new potential biomarker test for Parkinson’s.

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On the 27th June, 1997, a research report was published in the prestigious scientific journal ‘Science’ that would change the world of Parkinson’s forever.

And I am not exaggerating or overstating here. I know I can sometimes be a little over the top, but the research report in question very much changed the world of Parkinson’s research.

The discovery that tiny variations in a region of DNA that scientists refer to as “alpha synuclein” could increase the risk of developing Parkinson’s gave researchers their first real insights into some of the biology that could potentially be underlying the condition (Click here to read a previous SoPD post on this discovery):

Science

Title: Mutation in the alpha-synuclein gene identified in families with Parkinson’s disease.
Authors: Polymeropoulos MH, Lavedan C, Leroy E, Ide SE, Dehejia A, Dutra A, Pike B, Root H, Rubenstein J, Boyer R, Stenroos ES, Chandrasekharappa S, Athanassiadou A, Papapetropoulos T, Johnson WG, Lazzarini AM, Duvoisin RC, Di Iorio G, Golbe LI, Nussbaum RL.
Journal: Science. 1997 Jun 27;276(5321):2045-7.
PMID: 9197268

And then – remarkably just two months later – the results of another study were published in the journal ‘Nature’, and these would further cemented alpha synuclein’s place in Parkinson’s research.

In this second research paper, the investigators showed that alpha synuclein was present in “Lewy bodies” – densely packed spheres of protein inside of cells that are one of the characteristic features of the Parkinsonian brain:

Title: Alpha-synuclein in Lewy bodies.
Authors: Spillantini MG, Schmidt ML, Lee VM, Trojanowski JQ, Jakes R, Goedert M.
Journal: Nature. 1997 Aug 28;388(6645):839-40.
PMID: 9278044

And very suddenly, this poor little protein became public ‘enemy number one’ for the Parkinson’s research community and everyone started digging into the biology associated with it with the hope of finding new avenues for therapeutic intervention and biomarkers for Parkinson’s.

What exactly is alpha synuclein?

Continue reading “The seeds of change” →

Monthly Research Review – February 2023

~ Simon ~ 1 Comment

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At the end of each month the SoPD writes a post which provides an overview of some of the major pieces of Parkinson’s-related research that were made available during February 2023.

The post is divided into 10 parts based on the type of research:

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So, what happened during February 2023?

In world news:

February 2nd – The European Central Bank and Bank of England raise their interest rates by 0.5 percentage points to combat inflation, one day after the US Federal Reserve raised its federal funds rate by 0.25 percentage points.

 

February 5th – Cyclone Freddy formed in the Indian Ocean. It would become the longest lasting tropical cyclone in history and cause over 1,400 deaths and countless injuries and property damage across southeastern Africa (Click here to read more about this).

 

February 14 – The European Parliament approves a ban on the sale of new petrol and diesel vehicles in the European Union from 2035, citing the need to combat climate change in Europe and promote electric vehicles.

 

February 16th – Blockbuster action movie star Bruce Willis announced that he has received a new diagnosis of frontotemporal dementia (Click here to read more about this)

 

February 25th – A rare supermassive black hole – 1 billion times the mass of our sun – was discovered at the center of the galaxy COS-87259. This ancient galaxy formed just 750 million years after the Big Bang, and the black hole was spotted by the Atacama Large Millimeter Array (ALMA) in Chile (Click here to read more about this).

 

In the world of Parkinson’s research, a great deal of new research and news was reported:

In February 2023, there were 853 research articles added to the Pubmed website with the tag word “Parkinson’s” attached (1850 for all of 2023 so far). In addition, there was a wave to news reports regarding various other bits of Parkinson’s research activity (clinical trials, etc).

The top 4 pieces of Parkinson’s news

Continue reading “Monthly Research Review – February 2023” →

The “What would I do” post? Part 3

~ Simon ~ 1 Comment

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Given the broad range of topics covered on the SoPD, I am very regularly asked “what would you do if you were diagnosed with Parkinson’s tomorrow?”

As a research scientist I am not comfortable answering this question, but I can see how it is a fair one to ask. I have previously attempted to address it (Click here and here to read those posts), and I point folks who do ask in the direction of those posts.

And as new research and more tools become available, I can see some value in revisiting this question.

So in today’s post, we will do the 2023 version of “what would I do if I were diagnosed with Parkinson’s tomorrow?”. 

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Source: BBC

Before starting, I would just like to thank readers for their kind words of support regarding my personal situation (see this previous post to understand what I am talking about).

My ward is now in full time care. But the guardianship order is still not in place which makes things rather problematic.

Source: EducationLawyers

The UK deputyship system seems to have become glacial in its process. I was advised that it would take 4-6 months, but we are now almost 12 months into the wait… and the care home bills are piling up very quickly. The resources to pay the bills are available, but without the deputyship being in place I am powerless to do anything about it.

Very frustrating. And certainly preventable.

And this is probably a good place to start this particular post.

What do you mean?

Continue reading “The “What would I do” post? Part 3” →

Monthly Research Review – December 2022

~ Simon ~ 9 Comments

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At the end of each month the SoPD writes a post which provides an overview of some of the major pieces of Parkinson’s-related research that were made available during December 2022.

The post is divided into 10 parts based on the type of research:

# # # #

So, what happened during December 2022?

In world news:

December 5th – The US National Ignition Facility achieved fusion ignition, a major milestone in the development of nuclear fusion power

 

December 7th – After substantial protests against China’s Zero-COVID policies, the Chinese government finally eased its COVID19 restrictions.

 

December 15th – Astronomers find that a pair of exoplanets orbiting the red dwarf star Kepler-138 are likely to be water worlds.

 

December 19th – At the UN Biodiversity Conference (COP15), nearly 200 countries agree a “new” landmark deal to protect a third of the planet for nature by 2030 (more blah-blah as Greta would say)

December 19th – A new world record solar cell efficiency for a silicon-perovskite tandem solar cell was achieved, with scientists in Germany converting 32.5% of sunlight into electrical energy.

 

In the world of Parkinson’s research, a great deal of new research and news was reported:

In December 2022, there were 964 research articles added to the Pubmed website with the tag word “Parkinson’s” attached (10749 for all of 2022 so far). In addition, there was a wave to news reports regarding various other bits of Parkinson’s research activity (clinical trials, etc).

The top 5 pieces of Parkinson’s news

Continue reading “Monthly Research Review – December 2022” →

At last: Selnoflast

~ Simon ~ 11 Comments

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One of the most common questions I get from SoPD readers is what’s new with inflammasome research? Another version of this question is where are the clinical trials for NLRP3 inhibitors in Parkinson’s?

Readers have become very enchanted by this new class of anti-inflammatory drugs as a potential future treatment for Parkinson’s – and there is preclinical evidence to support this vibe. But the  clinical development of these experimental therapies has been slow. 

Recently, the pharmaceutical company Roche has initiated Phase 1b testing of their NLRP3 inhibitor (called Selnoflast) in people with Parkinson’s – the first in this class. 

In today’s post, we will discuss what the inflammasome is, how NLRP3 inhibitors work, and what the new clinical trial involves.

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On the 21st September 2020, the website for an Ireland-based biotech company called Inflazome suddenly disappeared. In its place was a single page, that stated the large pharmaceutical company Roche had purchased the biotech firm and taken on all of its inflammasome-targeting intellectual property (Source).

This was a big deal for folks who were watching the inflammasome research world. It suggested that the big players (pharma) were now interested in this space ($449 million interested in the case of Inflazome). And since then, there has been a rush of other pharma companies buying or developing inflammasome-targeting agents.

The Inflazome purchase was also interesting because the company was targeting Parkinson’s as one of their indications of interest.

And it would appear that Roche is now following up on this interest, having initiated a clinical trial program focused on inflammasomes in Parkinson’s.

Hang on a second. Remind me, what are inflammasomes?

Continue reading “At last: Selnoflast” →