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Topic · Pharmacology

Leech Biology and Applications

Leech Biology and Applications is a research topic within Pharmacology. Science Explorer counts 4.2k research works in it since 1950. 10.3% of them reached the world's top 10% most cited for their field and year.

This cluster of papers explores the diverse aspects of medicinal leeches, including their phylogenetic relationships, symbiotic interactions, use in leech therapy for various medical conditions, and the molecular basis of their salivary secretions. The research also delves into the evolutionary history and ecological roles of medicinal leeches.

  • Medicinal Leeches
  • Hirudotherapy
  • Leech Therapy
  • Phylogenetic Analysis
  • Symbiotic Relationships
  • Anticoagulants
  • Microbiota
  • Reconstructive Surgery
  • Osteoarthritis Treatment
  • Evolutionary History
Research works
4.2k
fractional, since 1950
In the world top 10%
431
per year above
Top-10% rate
10.3%
share of its works in the world top 10%
Growth, 2018-21 → 2022-25
+25%
the tick is no change
Largest producer
India
28% of the 10 largest, 2022-now
Leech Biology and Applications

This ranks research output and citation impact. It says nothing about the quality of diagnosis, treatment or care.

Which countries lead Leech Biology and Applications research?

By volume, India and China publish the most (160 and 95 works in 2022-now).

By volume, 2022-now

  1. 1 India 160 works
  2. 2 China 95 works
  3. 3 United States 87 works
  4. 4 Türkiye 53 works
  5. 5 Russia 46 works
  6. 6 Japan 34 works
  7. 7 Brazil 32 works
  8. 8 Germany 23 works
  9. 9 Iran 21 works
  10. 10 Italy 20 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.

India: 28.0%China: 16.6%United States: 15.3%Türkiye: 9.2%6 others listed: 30.9%28%largest
India160 · 28.0%China95 · 16.6%United States87 · 15.3%Türkiye53 · 9.2%6 others listed177 · 30.9%

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

Which institutions lead Leech Biology and Applications research?

By volume in 2022-now, Russian Academy of Sciences publishes the most Leech Biology and Applications research, followed by University of Calicut and Government Ayurved College, Nanded.

By volume, 2022-now

  1. 1 Russian Academy of SciencesRussia 21 works
  2. 2 University of CalicutIndia 10 works
  3. 3 Government Ayurved College, NandedIndia 10 works
  4. 4 Government Ayurvedic College and HospitalIndia 10 works
  5. 5 National Institute of AyurvedaIndia 8 works
  6. 6 University of CreteGreece 7 works
  7. 7 University of Tennessee at ChattanoogaUnited States 7 works
  8. 8 Chinese Academy of SciencesChina 6 works
  9. 9 Universidad de IbaguéColombia 5 works
  10. 10 Zoological Survey of IndiaIndia 5 works

Who are the leading researchers in Leech Biology and Applications?

The most-cited researchers publishing on Leech Biology and Applications include Didier Raoult and Ritesh George Menezes.

  1. 1 Didier Raoult France 232k citations
  2. 2 Ritesh George Menezes Saudi Arabia 112k citations

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

What are the most cited papers in Leech Biology and Applications?

The most cited paper in Leech Biology and Applications is "TUMOR DORMANCY IN VIVO BY PREVENTION OF NEOVASCULARIZATION" (Michael A. Gimbrone, Stephen B. Leapman, Ramzi S. Cotran et al., 1972), with 907 citations. Next come "Scabies and pediculosis" (482) and "Neuronal control of leech behavior" (408).

Most cited papers
#PaperReleasedCitations
1 TUMOR DORMANCY IN VIVO BY PREVENTION OF NEOVASCULARIZATION Michael A. Gimbrone, Stephen B. Leapman, Ramzi S. Cotran et al. · The Journal of Experimental Medicine Open access Aug 1972 907
2 Scabies and pediculosis O. Chosidow · The Lancet Mar 2000 482
3 Neuronal control of leech behavior William B. Kristan, Ronald L. Calabrese, W. Otto Friesen · Progress in Neurobiology Aug 2005 408
4 Annelid phylogeny and the status of Sipuncula and Echiura Torsten H. Struck, Nancy Schult, Tiffany Kusen et al. · BMC Evolutionary Biology Open access 5 Apr 2007 346
5 Depletion of Plasma Complement in Vivo by a Protein of Cobra Venom: Its Effect on Various Immunologic Reactions Charles G. Cochrane, Hans J. Müller‐Eberhard, Barbara S. Aikin · The Journal of Immunology Jul 1970 322
All 100 most cited papers, with filters and sorting

Where is Leech Biology and Applications research done?

The largest centres of Leech Biology and Applications research in 2022-now are Moscow (Russia), Beijing (China), Kunming (China) and Guwahati (India).

Largest cities, 2022-now

  1. 1 MoscowRussia 17 works
  2. 2 BeijingChina 14 works
  3. 3 KunmingChina 10 works
  4. 4 GuwahatiIndia 10 works
  5. 5 MalappuramIndia 10 works
  6. 6 NandedIndia 10 works
  7. 7 JaipurIndia 9 works
  8. 8 TokyoJapan 9 works
  9. 9 New DelhiIndia 8 works
  10. 10 RethymnoGreece 7 works
See Leech Biology and Applications on the map

Where is the best place to study Leech Biology and Applications?

Among universities, judged by research, University of Calicut and Government Ayurved College, Nanded 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.

Excellenceshare of its work in the world top 10%, 2022-now and all time averaged
40%
Specialisationhow much of its work is in this field, counted up to 10× the world share
10%
Sizeits output in this field, on a log scale
30%
Growthoutput growth, counted from -20% to +20%
10%
Internationalshare of its work with a co-author abroad
10%
Each slider sets a weight; the share it gets of the score is beside it.
#UniversityScoreTop 10%SpecialisationWorksGrowth
1University of CalicutIndia 90.03.5%75.9×10 +218.0%
2Government Ayurved College, NandedIndia 10.02.7%267.7×10 +27.8%

Universities only. The score blends excellence (40%), size (30%), specialisation (10%), growth (10%), international reach (10%), 2022-now; growth compares 2018-21 with 2022-25 and counts up to +20%, since a jump from a small base is mostly noise.

Every institution in Leech Biology and Applications, country by country

Is Leech Biology and Applications research growing?

Output in 2022-2025 was 25% higher than in 2018-2021, peaking in 2025. The fastest-growing topics are Leech Biology and Applications.

still counting19801990200020102020
grewheldshrank

The same series as a ribbon: one cell per year, darker for more. The line above answers how much; this answers when.

Its share of all research

Growing output can still be a shrinking share: all of science grows. This is Leech Biology and Applications as a percentage of every work published that year, 0.0026% in 2024.

still counting0.0050%0.010%Leech Biology and Applications0.0049% in 202519801990200020102020

Fractional works of Leech Biology and Applications over all fractional works that year. How the balance of science has shifted.

How much of it reaches the world top 10%

Year by year.

still counting5%10%15%Leech Biology and Applications11.0% in 2025200020102020

Of each year's works in it, the share that reached the world's 10% most cited for their field and year. A field is the world for its own topics, so there is no other line to hold it against.

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.

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