Physician-scientist | Psychiatric care | Psychedelic research

My goal: Help people struggling with addiction and depression to make a real change.

Dr. Stal Shrestha brings medical training, neuroscience research, and frontline clinical experience to one question: how can people with serious mental health conditions find a credible path forward?

MD, PhD Psychiatry resident, Austin NIH and UCSF research background PET imaging, neuroinflammation, psychedelics

This is not 1960s flower power. It is not a guru promise, a retreat fantasy, or a shortcut around diagnosis. The work is grounded in decades of medical research, with Dr. Shrestha contributing to the science and applying what research can teach in real clinical settings.

The line we draw

Psychedelic medicine has to earn trust like any other medicine.

What this is not

Counterculture nostalgia

No trippy aesthetic, no miracle language, no soft-focus wellness claims. Serious patients deserve better than a movement costume.

What it is

Evidence, diagnosis, supervision

Psychedelic-related care belongs inside careful psychiatric assessment, risk review, legal settings, psychotherapy, and follow-up.

Why he is credible

Research communities know the work

Dr. Shrestha's publication record spans PET imaging, receptor biology, neuroinflammation, antidepressant development, and psychedelic treatment directions.

Dr. Shrestha with clinical colleagues in a hospital hallway

Researcher and practitioner

He is not only studying treatments. He is seeing what severe suffering looks like in practice.

In hospital and clinical settings, Dr. Shrestha works around complex psychiatric and medical realities: severe PTSD, substance-use disorders, treatment-resistant depression, anxiety, trauma, and the human fallout that does not fit neatly into a paper abstract.

That practitioner knowledge matters. It keeps the science accountable to real people, real risk, and the possibility of profound positive change when care is structured, medically supervised, and honest about uncertainty.

The bridge

Research gives the map. Clinical work tests the terrain.

Decades of medical research

Psychedelic treatments are part of a longer scientific story: receptors, neural circuits, inflammation, plasticity, psychotherapy, and psychiatric outcomes.

Contribution to the science

Dr. Shrestha has added to the research base through peer-reviewed work in imaging, receptor biology, antidepressant effects, and neuroinflammation.

Education for people who need help

The goal is to help people understand addiction and depression clearly enough to pursue better mental health without getting lost in hype.

Dr. Shrestha in clinical scrubs and a mask
Clinical practice, not abstraction
Close portrait of Dr. Stal Shrestha
Accessible to patients, exacting about evidence

Education mission

Helping people separate hope from hype.

Addiction and depression can make a person desperate for any answer that sounds new. Dr. Shrestha's education work should give people a more useful kind of hope: what is known, what is still uncertain, who may be a candidate, who may be at risk, and why supervision matters.

The aim is not to sell psychedelics. The aim is to make credible mental health information easier to understand, so more people can find their way toward care that is serious, humane, and evidence-based.

Articles and research reports

His research, translated for non-scientists.

Each entry starts with a layperson's abstract, then links to the underlying paper or research profile for clinicians, researchers, and curious readers who want the source.

2023Journal of Nuclear Medicine

Whole-body PET imaging shows 11C-PS13 selectively measures COX-1 in humans

Lay abstract: This paper helps show that a PET scan can track a specific inflammation-related enzyme in living humans, not just in a lab model.

Research note: 11C-PS13 showed COX-1 selectivity and measured how strongly anti-inflammatory drugs block that target in vivo.

Read the paper
2021Journal of Cerebral Blood Flow & Metabolism

11C-deschloroclozapine improves PET imaging of human muscarinic DREADDs

Lay abstract: The team tested a better way to visualize engineered brain receptors, helping researchers study targeted brain circuits with more precision.

Research note: PET scans in a rhesus macaque quantified transfected receptor signal, endogenous binding, and non-displaceable uptake.

Read the paper
2020Journal of Neuroinflammation

PET measurement of COX-2 in primate neuroinflammation and a first-in-human study

Lay abstract: This is directly relevant to brain health: it tests whether inflammation can be measured with PET imaging in the brain and body.

Research note: The novel tracer 11C-MC1 was evaluated in LPS-induced rhesus macaque neuroinflammation and in human rheumatoid arthritis imaging.

Read the paper
2018Molecules

Prospective PET radioligands for imaging COX-2

Lay abstract: Before clinicians can image inflammation reliably, chemists need candidate tracers. This paper develops and screens those candidates.

Research note: The team synthesized COX-2 inhibitors, selected candidates with favorable potency and selectivity, and radiolabeled them for PET development.

Read the paper
2018Journal of Nuclear Medicine

Two PET radioligands for imaging COX-1 and COX-2 in rhesus monkeys

Lay abstract: This compares tools for visualizing two inflammation-related enzymes and identifies where each tracer works best.

Research note: 11C-PS13 showed specific uptake across organs, while 11C-MC1 showed limited organ-specific uptake under baseline conditions.

Read the paper
2018ACS Chemical Neuroscience

COX-1 PET radioligands, part 2: selecting 11C-PS13 for quantitative imaging

Lay abstract: This paper narrows several possible brain-imaging tracers down to a stronger candidate for measuring COX-1.

Research note: Candidate radioligands were evaluated in monkey brain, with 11C-PS13 selected for more favorable kinetics and blocking results.

Read the paper
2018ACS Chemical Neuroscience

COX-1 PET radioligands, part 1: synthesis and pharmacology

Lay abstract: This is the chemistry foundation for imaging neuroinflammation more precisely.

Research note: Seventeen triazole compounds were prepared and screened as direct-acting COX-1 PET radioligand candidates.

Read the paper
2018Cureus

How ketamine may help treatment-resistant depression

Lay abstract: Ketamine is not a classic psychedelic, but this review explains why rapid-acting brain treatments became important in depression research.

Research note: The review summarizes NMDA receptor antagonism and downstream mechanisms proposed in ketamine's antidepressant effects.

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2017Journal of Nuclear Medicine

11C-ER176 can image TSPO across human affinity genotypes

Lay abstract: A common genetic issue can make inflammation imaging unreliable. This tracer was tested to work more consistently across people.

Research note: The TSPO radioligand 11C-ER176 showed adequate sensitivity for all three rs6971 affinity genotypes in human brain imaging.

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2016Journal of Nuclear Medicine

5-HT1A PET radioligand binding limits use of the cerebellum as a reference region

Lay abstract: The paper improves the quality control around serotonin brain imaging, which matters for depression and anxiety research.

Research note: CUMI-101 showed significant alpha-1 adrenoceptor binding in human cerebellum, complicating reference-region assumptions.

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2016Scientific Reports

Tetratricopeptide repeat domain 9A and anxiety-like behavior

Lay abstract: This animal study looks at a gene-related pathway that may influence anxiety-like behavior, adding another layer to mood and stress biology.

Research note: The study investigated Ttc9A modulation of anxiety-like behavior in female mice.

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2015Addiction Biology

Social dominance and cocaine self-administration in rats

Lay abstract: Addiction risk is shaped by biology and social context. This study links dominance behavior with cocaine-taking patterns in an animal model.

Research note: The work examined monoaminergic neurochemistry, impulsivity, and cocaine self-administration after social-rank assessment.

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2015Neuropsychopharmacology

Serotonergic markers predict flexible learning

Lay abstract: The study connects serotonin biology with the ability to adapt behavior when rules change, a theme relevant to compulsive and addictive patterns.

Research note: Markers in orbitofrontal cortex and dorsal raphe nucleus predicted serial reversal-learning variation.

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2014American Journal of Psychiatry

Fluoxetine in juvenile monkeys: serotonin transporter and behavior

Lay abstract: This asks how early antidepressant exposure may shape the developing brain over time.

Research note: Juvenile fluoxetine exposure persistently upregulated serotonin transporter binding into young adulthood in rhesus monkeys.

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2014Journal of Nuclear Medicine

11C-CUMI-101 behaves as a 5-HT1A antagonist and binds alpha-1 adrenoceptors

Lay abstract: This helps researchers interpret serotonin PET scans more cautiously and accurately.

Research note: In vitro and in vivo studies showed CUMI-101 did not behave as a simple 5-HT1A agonist tracer.

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2014Neuroscience Letters

Antidepressant effects on serotonin 1A/1B receptors in a gene by environment model

Lay abstract: This studies why antidepressants can work differently depending on biology and life stress.

Research note: The work examined serotonin receptor changes after antidepressant exposure in a rat gene-environment model.

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2014Annals of Neurosciences

Prenatal desvenlafaxine and behavior in mice

Lay abstract: This paper studies how antidepressant exposure before birth may affect later behavior in an animal model.

Research note: The study evaluated behavioral alterations after prenatal desvenlafaxine exposure in Swiss albino mice.

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2014Karolinska Institutet thesis

The serotonergic system and antidepressants during brain development

Lay abstract: Dr. Shrestha's PhD work connects serotonin, antidepressant exposure, PET imaging, and brain development.

Research note: The dissertation examined serotonin transporter and receptor biology using in vivo PET imaging and in vitro receptor binding.

View thesis listing
2013European Journal of Neuroscience

Dopamine, GABA, and impulsivity markers in rats

Lay abstract: Impulsivity is one pathway into addiction and relapse. This paper maps related brain-chemistry markers in reward and control regions.

Research note: Dopaminergic and GABA-ergic markers were localized in ventral striatum and prefrontal cortex in relation to impulsivity.

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2012NeuroImage

Serotonin-1A receptors in major depression measured with PET

Lay abstract: This review explains why measuring serotonin receptors in depression is scientifically difficult and how future PET studies can be more reliable.

Research note: The paper reviews controversies, confounds, and recommendations for PET quantification of 5-HT1A receptors in major depression.

Read the paper
CurrentClinical research direction

Psychedelic treatments for addiction and mood disorders

Lay abstract: The next chapter is translating this neuroscience background into treatments for depression, anxiety, addiction, PTSD, and trauma.

Research note: Public profile materials describe work on rapid therapeutic effects of psychedelics across neurotherapeutics, neuroplasticity, neuromodulation, and neuroinflammation.

Research profile

Medical and research path

The credibility is specific.

  1. Now Psychiatry residency, Austin

    Dell Medical School at The University of Texas at Austin lists Dr. Shrestha in the psychiatry residency class of 2027.

  2. UCSF Physician-scientist and addiction research

    Clinical and translational interest in psychedelic treatments for substance-use and mood disorders.

  3. NIH Molecular imaging and biomarkers

    Postdoctoral and medical-scientist work in PET radioligands, neuroinflammation, and receptor biology.

  4. Karolinska PhD in clinical neuroscience

    Doctoral work on serotonin, antidepressants, brain development, PET imaging, and receptor binding.

Next step

Build public education around addiction, depression, and evidence-based psychedelic care.

Use this section for clinical inquiry routing, research collaborations, speaking requests, and educational updates once the practice details are finalized.