Science Explorer Interactive view Map
Topic · Immunology

Reproductive System and Pregnancy

Reproductive System and Pregnancy is a research topic within Immunology. Science Explorer counts 49k research works in it since 1950. 19.7% of them reached the world's top 10% most cited for their field and year.

This cluster of papers explores the immunological mechanisms involved in pregnancy, focusing on the interactions at the fetal-maternal interface, including the roles of decidual NK cells, regulatory T cells, HLA-G, and the Th1/Th2 paradigm. It delves into topics such as implantation, recurrent pregnancy loss, maternal-fetal tolerance, and endometrial receptivity.

  • Decidual NK Cells
  • Regulatory T Cells
  • Fetal-Maternal Interface
  • Implantation
  • Recurrent Pregnancy Loss
  • Maternal-Fetal Tolerance
  • HLA-G
  • Th1/Th2 Paradigm
  • Endometrial Receptivity
  • Immune Regulation
Research works
49k
fractional, since 1950
In the world top 10%
9.7k
per year above
Top-10% rate
19.7%
share of its works in the world top 10%
Growth, 2013–17 → 2018–22
+21%
the tick is no change

Which countries lead Reproductive System and Pregnancy research?

By volume, China and the United States publish the most (2.2k and 1.3k works in 2022–2025).

By volume, 2022–2025

  1. 1 China 2.2k works
  2. 2 United States 1.3k works
  3. 3 India 337 works
  4. 4 Russia 272 works
  5. 5 Japan 268 works
  6. 6 United Kingdom 245 works
  7. 7 Iran 244 works
  8. 8 Germany 233 works
  9. 9 Türkiye 216 works
  10. 10 Italy 199 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.

China: 40.5%United States: 23.0%India: 6.1%Russia: 4.9%6 others listed: 25.5%40%largest
China2,234 · 40.5%United States1,270 · 23.0%India337 · 6.1%Russia272 · 4.9%6 others listed1,405 · 25.5%

Shares of the rows listed above, not of the whole node.

Which institutions lead Reproductive System and Pregnancy research?

By volume in 2022–2025, Obstetrics and Gynecology Hospital of Fudan University publishes the most Reproductive System and Pregnancy research, followed by Huazhong University of Science and Technology and Research Institute of Obstetrics and Gynecology named after D.O. Ott.

By volume, 2022–2025

  1. 1 Obstetrics and Gynecology Hospital of Fudan University China 33 works
  2. 2 Huazhong University of Science and Technology China 27 works
  3. 3 Research Institute of Obstetrics and Gynecology named after D.O. Ott Russia 26 works
  4. 4 University of North Carolina at Chapel Hill United States 25 works
  5. 5 Sun Yat-sen University China 25 works
  6. 6 Nanjing Medical University China 24 works
  7. 7 Sichuan University China 24 works
  8. 8 Harvard University United States 24 works
  9. 9 Shanghai Jiao Tong University China 23 works
  10. 10 Shanghai First Maternity and Infant Hospital China 23 works

Who are the leading researchers in Reproductive System and Pregnancy?

The most-cited researchers publishing on Reproductive System and Pregnancy include Patrick M. Bossuyt.

  1. 1 Patrick M. Bossuyt 14k citations

Ranked by citations received across their whole record, among researchers with at least three works on this topic.

Where is Reproductive System and Pregnancy research done?

The largest centres of Reproductive System and Pregnancy research in 2022–2025 are Beijing (China), Shanghai (China), Guangzhou (China) and Wuhan (China). Among places with at least 20 works in it, it is an unusually large share of all research in Pudong.

Largest cities, 2022–2025

  1. 1 Beijing China 222 works
  2. 2 Shanghai China 166 works
  3. 3 Guangzhou China 159 works
  4. 4 Wuhan China 105 works
  5. 5 Moscow Russia 103 works
  6. 6 Nanjing China 98 works
  7. 7 Hangzhou China 96 works
  8. 8 Tehran Iran 93 works
  9. 9 London United Kingdom 87 works
  10. 10 Jinan China 79 works

Where it is the local speciality

  1. PudongCN · 23.7 works11×
← less than its size predictsmore →

Location quotient: how much more of its research is in Reproductive System and Pregnancy than the world average.

See Reproductive System and Pregnancy on the map

Where is the best place to study Reproductive System and Pregnancy?

Among universities, judged by research, Tabriz University of Medical Sciences, China Medical University and Guangzhou Medical University 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.

0%20%40%mean 29.64%fractional works in this node (log) →share in the world top 10% →Tabriz University of Medical Sciences: 16, 25.9%China Medical University: 20, 40.7%Guangzhou Medical University: 18, 34.1%Fujian Medical University: 19, 25.0%South China Agricultural University: 13, 26.8%Medical University of Lublin: 9, 45.4%Nanjing Medical University: 24, 25.9%Karolinska Institutet: 17, 25.3%Medical University of Graz: 9, 21.1%CHA University: 8, 26.2%China Medical Univer…Guangzhou Medical Un…Tabriz University of…Fujian Medical Unive…
above the meannear itbelow it

One dot per university in the table below. The upper left is the interesting corner: small places doing unusually strong work.

#UniversityScoreTop 10%SpecialisationWorksGrowth
1Tabriz University of Medical Sciences Iran 65.625.9%9.4×16 +150.8%
2China Medical University China 62.440.7%8.0×20 -15.4%
3Guangzhou Medical University China 62.134.1%8.9×18 +11.0%
4Fujian Medical University China 53.025.0%7.2×19 +40.4%
5South China Agricultural University China 52.626.8%4.8×13 +590.1%
6Medical University of Lublin Poland 52.645.4%7.5×9 -35.4%
7Nanjing Medical University China 52.325.9%6.2×24 +1.2%
8Karolinska Institutet Sweden 52.125.3%5.1×17 +13.3%
9Medical University of Graz Austria 51.321.1%9.3×9 +58.1%
10CHA University South Korea 50.626.2%21.5×8 +58.2%

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 Reproductive System and Pregnancy research growing?

Output in 2018–2022 was 21% higher than in 2013–2017, peaking in 2025. The fastest-growing topics are Reproductive System and Pregnancy.

19801990200020102020
grewheldshrank

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.