Tryptophan and brain disorders
Tryptophan and brain disorders is a research topic within Biological Psychiatry. Science Explorer counts 44k research works in it since 1950. 23.2% of them reached the world's top 10% most cited for their field and year.
This cluster of papers explores the intricate relationship between the immune system and the brain, focusing on neuroinflammation, cytokine signaling, and the impact of immune activation on psychiatric disorders such as depression and schizophrenia. The role of tryptophan metabolism, oxidative stress, and maternal immune activation in influencing brain function and behavior is also a key area of investigation.
- Neuroinflammation
- Cytokines
- Depression
- Tryptophan Metabolism
- Immune Activation
- Schizophrenia
- Oxidative Stress
- Microglia
- Maternal Immune Activation
- Antidepressant Treatment
- Research works
- 44k fractional, since 1950
- In the world top 10%
- 10k per year above
- Top-10% rate
- 23.2% share of its works in the world top 10%
- Growth, 2013–17 → 2018–22
- +61% the tick is no change
Which countries lead Tryptophan and brain disorders research?
By volume, China and the United States publish the most (3.3k and 2.2k works in 2022–2025).
By volume, 2022–2025
- 1 China 3.3k works
- 2 United States 2.2k works
- 3 India 461 works
- 4 Germany 362 works
- 5 Italy 361 works
- 6 United Kingdom 344 works
- 7 Japan 343 works
- 8 Russia 342 works
- 9 Canada 288 works
- 10 Brazil 266 works
How concentrated that is
The same countries as shares of everything the list above accounts for. A node where two countries do two thirds of the work and one spread evenly across twelve read alike as a ranking and not at all alike here.
Shares of the rows listed above, not of the whole node.
Which institutions lead Tryptophan and brain disorders research?
By volume in 2022–2025, Chinese Academy of Medical Sciences & Peking Union Medical College publishes the most Tryptophan and brain disorders research, followed by University of North Carolina at Chapel Hill and Harvard University.
By volume, 2022–2025
- 1 Chinese Academy of Medical Sciences & Peking Union Medical CollegeChina 47 works
- 2 University of North Carolina at Chapel HillUnited States 44 works
- 3 Harvard UniversityUnited States 42 works
- 4 King's College LondonUnited Kingdom 38 works
- 5 University of TorontoCanada 35 works
- 6 Capital Medical UniversityChina 34 works
- 7 Southern Medical UniversityChina 33 works
- 8 Sichuan UniversityChina 33 works
- 9 Central South UniversityChina 33 works
- 10 Mental Health Research Center of Russian Academy of Medical SciencesRussia 32 works
Who are the leading researchers in Tryptophan and brain disorders?
The most-cited researchers publishing on Tryptophan and brain disorders include Dan J. Stein, Luigi Ferrucci and Rob Knight.
- 1 Dan J. Stein South Africa 7.7k citations
- 2 Luigi Ferrucci United States 5.3k citations
- 3 Rob Knight United States 4.9k citations
Ranked by citations received across their whole record, among researchers with at least three works on this topic.
Where is Tryptophan and brain disorders research done?
The largest centres of Tryptophan and brain disorders research in 2022–2025 are Beijing (China), Guangzhou (China), Shanghai (China) and Moscow (Russia). Among places with at least 20 works in it, it is an unusually large share of all research in Cork.
Largest cities, 2022–2025
Where it is the local speciality
- CorkIE · 24.5 works5.8×
Location quotient: how much more of its research is in Tryptophan and brain disorders than the world average.
Where is the best place to study Tryptophan and brain disorders?
Among universities, judged by research, Nanjing University of Chinese Medicine, Guangzhou University of Chinese Medicine and Chengdu University of Traditional Chinese Medicine score highest, combining excellence, specialisation, size, growth and international reach. Research strength is one signal when choosing where to study; it does not measure teaching.
One dot per university in the table below. The upper left is the interesting corner: small places doing unusually strong work.
| # | University | Score | Top 10% | Specialisation | Works | Growth |
|---|---|---|---|---|---|---|
| 1 | Nanjing University of Chinese MedicineChina | 67.9 | 31.3% | 11.0× | 30 | +165.8% |
| 2 | Guangzhou University of Chinese MedicineChina | 66.4 | 30.3% | 12.2× | 25 | +176.9% |
| 3 | Chengdu University of Traditional Chinese MedicineChina | 63.3 | 41.1% | 10.2× | 25 | — |
| 4 | Southern Medical UniversityChina | 59.2 | 29.5% | 8.3× | 33 | +75.0% |
| 5 | King's College LondonUnited Kingdom | 58.1 | 33.0% | 4.5× | 38 | +105.0% |
| 6 | Beijing University of Chinese MedicineChina | 57.7 | 20.1% | 15.5× | 30 | +86.7% |
| 7 | Medical University of LodzPoland | 56.4 | 26.1% | 10.8× | 18 | +87.6% |
| 8 | Medical University of BiałystokPoland | 56.0 | 29.1% | 14.1× | 14 | +111.0% |
| 9 | Hunan Agricultural UniversityChina | 55.9 | 57.3% | 7.0× | 12 | — |
| 10 | Capital Medical UniversityChina | 55.8 | 30.3% | 5.3× | 34 | +143.5% |
Universities only. Score blends excellence (30%), specialisation (25%), size (20%), growth (15%) and international reach (10%), 2015–2022; growth compares 2010–14 with 2015–19.
Is Tryptophan and brain disorders research growing?
Output in 2018–2022 was 61% higher than in 2013–2017, peaking in 2025. The fastest-growing topics are Tryptophan and brain disorders.
The same series as a ribbon — one cell per year, darker for more. The line above answers how much; this answers when.
Which topics inside it are moving
Growth and decline on one axis around a shared zero. Two lists side by side hide the thing that matters: whether the growth dwarfs the decline, or the other way round.