Alejandra Parra Peña

Postdoc at @WesternU Researching Parkinson's Disease | Director of STEM Women at | Scientific advisor and Science communicator.

[Alejandra Parra Peña @Alejandra_vpp]

@adeeplake Tendrá que ver con las nuevas métricas de medición de impacto? Las "altmetrics". En Canadá no han comenzado a hablar harto de la importancia de estas.

[Alejandra Parra Peña @Alejandra_vpp]

@carlitalabra Por acá otra chilena viviendo en el extranjero, y trabajando en algunos proyectos en Chile. Desde el miércoles ya con reuniones donde se mencionó " lo vemos despues del 18" 🤣

[Alejandra Parra Peña @Alejandra_vpp]

@EliasZamoranoCL Herramienta base en mis clases de química 1 - primer año de universidad

[Alejandra Parra Peña @Alejandra_vpp]

@lidiamerenciano Como bien dice la portada, relata de excelente manera como el cuerpo femenino en su proceso adaptativo impulsó a evolución humana. Aporta datos interesantísimos, e invita a la reflexión sobre temas de los que poco hablamos.

[Sociedad de Biología Celular de Chile (SBCCh) @_SBCCh]

XXXVII Reunión anual de la Sociedad de Biología Celular de Chile

🗓️ 24 al 28 de noviembre de 2025

🗻 Puerto Varas, Chile

Toda la info en el link: https://t.co/S3SAoNxzt6

[Alejandra Parra Peña @Alejandra_vpp]

@TheStrugglingS4 When the reviewer #2 asked why we don't use the new super cooling technique...

[Cesar Ramirez-Sarmiento @cesarramirez.bsky.social @cxarramirez]

Registrations to the 2025 AI for Protein Design, sponsored by @EMBO, @RosettaCommons, @ProteinSociety, @Kurabiotech and @AI_Proteins, being held in Puerto Varas, Chile, are now OPEN!

More info, deadlines & attendee selection process:
https://t.co/lPFbHV7qi3

#EMBOaiProteinDesign

[Sociedad de Biología Celular de Chile (SBCCh) @_SBCCh]

The Patagonia Synuclein Workshop 2025

🗓️ November 17 - 19th

📍Villa la Angostura, Neuquén, Argentina

https://t.co/Lcgbf49ENx

[Alejandra Parra Peña @Alejandra_vpp]

@noestoycreici Fui por primera vez el año pasado a ver Medea. Me encantó. Lástima que la mayoría de las veces es tan cara la entrada en donde vivo 😩

[Alejandra Parra Peña @Alejandra_vpp]

@carlaconwifi Gemini me ha dado buenos resultados. A veces mejor que chatGPT

[RAICYT @RAICYT_Ar]

🚨 ATENCIÓN: este es un mensaje de los científicos argentinos.
Un ataque sin precedentes ha sumergido nuestra ciencia nacional en la oscuridad y el silencio.
Pero no estamos derrotadxs, la resistencia vive.
🇦🇷 Sin trabajadores no hay ciencia. Sin ciencia no hay Argentina posible.

[Alejandra Parra Peña @Alejandra_vpp]

@caamadorc @ANID_Chile @AisenEtcheverry Un absurdo!

[Michael Okun @MichaelOkun]

Do you have a plan for management of freezing of gait (FOG) in Parkinson's? I think about 5 things when constructing a PLAN. Check out the new paper by Tosserams, Fasano, Bloem, Nonnekes and colleagues in Nature Reviews Neurology.
Key Points:
- Freezing of gait is one of the most disabling symptoms in Parkinson’s.
- It is one of the most frustrating for patients and caregivers alike.
- People may describe it as feeling like their feet are glued to the floor, and FOG increases fall risk, anxiety, and loss of independence.
My Take: I urge our community to take a step forward with more coordinated plans for FOG in Parkinson's. FOG in Parkinson’s: Why do we need a plan? This paper offers us a clear, comprehensive, pathophysiology-driven framework to build a person specific plan. An important point that resonates for me: FOG isn’t one thing, it’s many things. It demands listening, with a personalized, evolving approach. It must addresses motor and non-motor factors that may underpin the manifestation.
Here are 5 key things I consider when treating freezing of gait (FOG):
1- Classify the type of FOG – Is it OFF-state, pseudo-ON, or dopamine-unresponsive? Your treatment will hinge on this.
2- Optimize dopamine – Tailor medications carefully, and consider infusion or DBS if or when appropriate.
3- Use non-drug strategies – Physical therapy, cueing, and gait training. These can be powerful, especially early in disease.
4- Treat the whole person. Anxiety, cognition, and sleep all interact with FOG. Addressing these features matters.
5- Think prevention: Exercise, balance training, and early identification. Can we delay FOG or treat the person more effectively so it does not emerge? Listen and optimize plans at every visit even if FOG is not present.
Let’s turn these insights into action. BRAVO to the authors. Don't be nolens volens – willy-nilly about freezing of gait (FOG).
https://t.co/6LJG5WCt3w #Parkinsons #FOG #FreezingOfGait #Neurology #DBS #Gait #MovementDisorders #ParkinsonsPlan #NeuroRehab #NeuroInnovation @ParkinsonDotOrg @FixelInstitute

[Michael Okun @MichaelOkun]

Do infections cause Parkinson's disease? Mercado and colleagues present a compelling new review in the Journal of Parkinson's Disease. My take: There is increasing evidence that pathogens may play a role in triggering or in contributing to some (many) cases diagnosed as 'synucleinopathy.' How? Infection leads to inflammation. Then, we must next consider whether a genetic variant (i.e. a PD gene) is present or absent. Finally, there will emerge both a clinical phenotype and a biological subtype. Remember, post-encephalitic, PINK1, PARKIN and LRRK2 may all be (biologically) synuclein negative. Also, we must consider whether you are a susceptible host? The authors present a clear way to ponder a potential role for infections in Parkinson's disease.
https://t.co/Yts2BvdB9D @ParkinsonDotOrg @FixelInstitute @journal_PD #Parkinsons

[Parkinson's Foundation @ParkinsonDotOrg]

Ready…Set…MOVE! 👟 Register for a Moving Day Walk near you to join the movement against Parkinson’s disease: https://t.co/s8EVgdU1Vn

[Pedro Hernandez @zebragut]

PhD opportunity in Paris! 🇫🇷

Passionate about regeneration?
Join our lab to explore the role of Redox signaling in embryonic-like reprogramming during gut regeneration using zebrafish, mouse organoids & live imaging!

Interested? Message me! #PhD #Zebrafish #Regeneration

[Neuromatch @neuromatch]

Join Neuromatch Academy courses for hands-on experience in computational neuroscience, machine learning, and data science with expert mentors. Apply by March 23rd!
🎯 Apply here: https://t.co/2aGOKQ86Dq #Neuroscience #MachineLearning

[Glauben Landskron-Ramos @glaulandskron]

Busco estudiante de pregrado o magíster en carreras biológicas o salud que quiera hacer su tesis (remunerada) desde abril 2025 bajo un proyecto Fondecyt en respuesta inmune de linfocitos T en cáncer colorrectal. Interesadas/os por favor DM y RT, gracias!

[Neuromatch @neuromatch]

More and more industries and research areas are using Deep Learning to leverage their data and build new solutions. Our Deep Learning course is created with industry and academia in mind, and can be applied across disciplines.

Check it out & apply here: https://t.co/sRVyTJgDby

[westernuWIN @WesternuWIN]

Check out the 2025 Brainhack Western events and register today (more info on our website - link in bio). 🧠🧠