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Hospital / health system · Osaka · Japan

Osaka Nishi Clinic

In research, Osaka Nishi Clinic stands highest in Medicine (#7,900 of 10,443 worldwide) and Health Sciences (#9,546 of 11,982 worldwide), 2022–2025.

osakanishi-c.jpROR OpenAlex
World rank, 2022–2025
#20,421
of 28,054 · #26,541 all time
Rank in Japan
#594
of 1,070
Research works
440
▲ 21% vs 2013–17
Citations
5.2k
11.8 per fractional work
Top-10% rate
10.1%
record average 16.5%
Open access
56%
world 28%

What is Osaka Nishi Clinic known for in research?

The fields where it stands highest, 2022–2025, ranked among every institution above the floor in each field.

FieldWorld rankWhere that sitsTop-10% rateWorksAll time
MedicineField #7,900 of 10,443 11.5%72 #11844
Health SciencesDomain #9,546 of 11,982 11.2%76 #14823

Each strip is that field’s whole ranked pool, with the notch where Osaka Nishi Clinic sits in it, in the colour of the band that rank falls in. The track under the rate is the rate itself: it carries no world mark, because the world rate differs by field (from about 6% to 21% in this record).

Field profile

Location quotient across every field it publishes in: outside the ring is more than an institution of this size would be expected to publish, inside it is less.

Agricultural and Biological Sciences: 0.29× its world share, 2 worksAgricultural and Bio…Biochemistry, Genetics and Molecular Biology: 1.73× its world share, 10 worksBiochemistry, Geneti…Immunology and Microbiology: 4.60× its world share, 5 worksImmunology and Micro…Neuroscience: 1.19× its world share, 2 worksNeurosciencePharmacology, Toxicology and Pharmaceutics: 1.02× its world share, 0 worksPharmacology, Toxico…Computer Science: 0.01× its world share, 0 worksComputer ScienceEnergy: 0.16× its world share, 0 worksEnergyEngineering: 0.15× its world share, 2 worksEngineeringEnvironmental Science: 0.04× its world share, 0 worksEnvironmental ScienceMaterials Science: 0.32× its world share, 1 worksMaterials ScienceMathematics: 1.01× its world share, 1 worksMathematicsPhysics and Astronomy: 2.08× its world share, 5 worksPhysics and AstronomyDentistry: 1.28× its world share, 1 worksDentistryHealth Professions: 0.82× its world share, 2 worksHealth ProfessionsMedicine: 3.37× its world share, 72 worksMedicineNursing: 0.51× its world share, 0 worksNursingVeterinary: 0.73× its world share, 0 worksVeterinaryArts and Humanities: 0.01× its world share, 0 worksArts and HumanitiesEconomics, Econometrics and Finance: 0.07× its world share, 0 worksEconomics, Econometr…Psychology: 1.12× its world share, 4 worksPsychologySocial Sciences: 0.10× its world share, 1 worksSocial Sciences1×world share
more than its size predictsabout as predictedless

Rings at 0.5×, 1× and 2×. Widest outward: Immunology and Microbiology, 4.6×. Every wedge is a field page.

Who are the top researchers at Osaka Nishi Clinic?

Ranked on the composite score, Kotaro Kitaya, Aisaku Fukuda and Yoshiharu Nakaoka lead among researchers whose main affiliation is Osaka Nishi Clinic.

  1. 1 Kotaro Kitaya Japan · #189,961 worldwide 90 citations · 28 works
  2. 2 Aisaku Fukuda Japan · #493,943 worldwide 40 citations · 25 works
  3. 3 Yoshiharu Nakaoka Japan · #525,715 worldwide 16 citations · 20 works
  4. 4 Hidehiko Matsubayashi Japan · #829,509 worldwide 28 citations · 34 works
  5. 5 Hiroshi Matsumoto Japan · #856,033 worldwide 59 citations · 62 works
  6. 6 Tomomoto Ishikawa Japan · #884,621 worldwide 48 citations · 42 works
  7. 7 Kohei Yamaguchi Japan · #1,029,721 worldwide 15 citations · 26 works
All ranked researchers at Osaka Nishi Clinic

Which keywords describe research at Osaka Nishi Clinic?

By fractional works in 2022–2025, weighted toward what it does more of than the world: Oxidative Stress, Fertility Preservation, Ovarian Tissue Cryopreservation, Androgen Receptor, Sperm DNA Fragmentation, Spermatogonial Stem Cells, Metabolic Syndrome and Complications.

▲ more of its work than of the world’s◆ about the world’s share▼ less than the world’s

Size is fractional works in 2022–2025 in the topics tagged with each word; colour is the word's share of this institution's work against its share of the world's. The 40 words are chosen for being large and distinctive. Each links to the topic it comes from most.

All 40 words, with their numbers
  1. Oxidative Stress11▲ 5.9×18 topics
  2. Fertility Preservation9▲ 138×1 topic
  3. Ovarian Tissue Cryopreservation9▲ 138×1 topic
  4. Epidemiology8▲ 1.75×57 topics
  5. Androgen Receptor6▲ 79×2 topics
  6. Sperm DNA Fragmentation5▲ 149×1 topic
  7. Spermatogonial Stem Cells5▲ 149×1 topic
  8. Quality of Life5▲ 3.2×20 topics
  9. Metabolic Syndrome5▲ 5.4×12 topics
  10. Cardiovascular Disease4▲ 3.6×17 topics
  11. Inflammation4▲ 1.89×26 topics
  12. Complications4▲ 7.5×11 topics
  13. Infertility4▲ 23×3 topics
  14. Obesity4▲ 4.3×8 topics
  15. Immune Regulation3▲ 26×2 topics
  16. Regulatory T Cells3▲ 25×2 topics
  17. Decidual NK Cells3▲ 73×1 topic
  18. Fetal-Maternal Interface3▲ 73×1 topic
  19. Insulin Resistance3▲ 5.9×5 topics
  20. Fertility3▲ 29×2 topics
  21. Aging2▲ 4.1×10 topics
  22. Chemotherapy2▲ 3.2×11 topics
  23. Ovarian Reserve2▲ 51×1 topic
  24. Polycystic Ovary Syndrome2▲ 51×1 topic
  25. Assisted Reproductive Technology2▲ 33×2 topics
  26. Gene Expression2▲ 3.5×5 topics
  27. Prenatal Diagnosis2▲ 15×5 topics
  28. Cosmetic Surgery2▲ 51×2 topics
  29. Maternal Mortality2▲ 8.8×4 topics
  30. Regeneration2▲ 9.7×5 topics
  31. Rehabilitation2▲ 4.7×9 topics
  32. Genomic Sequencing2▲ 15×2 topics
  33. Anatomy2▲ 23×2 topics
  34. Aneuploidy Screening2▲ 60×1 topic
  35. Maternal Plasma DNA Sequencing2▲ 60×1 topic
  36. Reproductive Outcome2▲ 42×2 topics
  37. Cosmological Parameters2▲ 27×1 topic
  38. Dark Energy2▲ 23×1 topic
  39. Quantum Gravity2▲ 18×2 topics
  40. Transplantation2▲ 15×4 topics

Which research topics does Osaka Nishi Clinic publish most on?

By volume in 2022–2025: Reproductive Biology and Fertility, Sperm and Testicular Function, Reproductive System and Pregnancy and Ovarian function and disorders.

Reproductive Biology and…9Reproductive Biology and Fertility: 9 fractional worksSperm and Testicular Fun…5Sperm and Testicular Function: 5 fractional worksReproductive System and …3Reproductive System and Pregnancy: 3 fractional worksOvarian function and dis…2Ovarian function and disorders: 2 fractional worksPrenatal Screening and D…2Prenatal Screening and Diagnostics: 2 fractional worksCosmology and Gravitatio…2Cosmology and Gravitation Theories: 2 fractional worksFacial Rejuvenation and Surgery Techniques: 2 fractional worksAssisted Reproductive Technology and Twin Pregnancy: 2 fractional worksRelativity and Gravitational Theory: 1 fractional worksGenetic and Clinical Aspects of Sex Determination and Chromosomal Abnormalities: 1 fractional works
Public Health, Environmental and Occupational HealthReproductive MedicineImmunologyPediatrics, Perinatology and Child Health3 others

Area is fractional works; colour is the subfield each topic belongs to.

  1. 1 Reproductive Biology and Fertility Public Health, Environmental and Occupational Health 9 works
  2. 2 Sperm and Testicular Function Reproductive Medicine 5 works
  3. 3 Reproductive System and Pregnancy Immunology 3 works
  4. 4 Ovarian function and disorders Reproductive Medicine 2 works
  5. 5 Prenatal Screening and Diagnostics Pediatrics, Perinatology and Child Health 2 works
  6. 6 Cosmology and Gravitation Theories Astronomy and Astrophysics 2 works
  7. 7 Facial Rejuvenation and Surgery Techniques Dermatology 2 works
  8. 8 Assisted Reproductive Technology and Twin Pregnancy Pediatrics, Perinatology and Child Health 2 works
  9. 9 Relativity and Gravitational Theory Astronomy and Astrophysics 1 works
  10. 10 Genetic and Clinical Aspects of Sex Determination and Chromosomal Abnormalities Genetics 1 works

How open and international is its research?

Against the world’s own shares — the tick on each track. Both are shares of its output, so they sit on one scale and can be read against each other as well as against the world.

openly available55.7%not open44.3%

World: 28% of research is openly available.

with international co-authors8.0%domestic only92.0%

World: 19% is written across borders.

How has Osaka Nishi Clinic's research output changed?

Output in 2018–2022 was 21% higher than in 2013–2017.

1990200020102020
grewheldshrank

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

Other research institutions in Osaka

All research institutions in Osaka

Research measures only: rankings here say nothing about teaching, admissions or student experience. Comparable institutions and collaboration partners are in the interactive view on the map.