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Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Medicine 117 4196 3931 47 44 711 53692

Jorma Toppari publications per year

The chart shows the history of publications by Jorma Toppari between 1984 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Jorma Toppari published across 42 years, from 1984 to 2025, averaging 18.5 papers a year. Output peaked at 53 publications in 2023. 58 of the 777 publications appeared in the last two years.

No. of publications
10 20 30 40 50
Bar chart. Horizontal axis: year, 1984 to 2025. Vertical axis: number of publications, 0 to 53. Peak 53 publications in 2023. 1984: 1 publication 1985: 3 publications 1986: 6 publications 1987: 3 publications 1988: 2 publications 1989: 5 publications 1990: 10 publications 1991: 6 publications 1992: 3 publications 1993: 3 publications 1994: 8 publications 1995: 6 publications 1996: 6 publications 1997: 4 publications 1998: 5 publications 1999: 12 publications 2000: 13 publications 2001: 16 publications 2002: 12 publications 2003: 20 publications 2004: 15 publications 2005: 18 publications 2006: 22 publications 2007: 16 publications 2008: 18 publications 2009: 15 publications 2010: 17 publications 2011: 22 publications 2012: 24 publications 2013: 15 publications 2014: 20 publications 2015: 27 publications 2016: 35 publications 2017: 38 publications 2018: 38 publications 2019: 50 publications 2020: 31 publications 2021: 50 publications 2022: 51 publications 2023: 53 publications 2024: 36 publications 2025: 22 publications
1984 2025

777 publications in total across all disciplines

View publications per year as a table
Jorma Toppari: publications per year, 1984 to 2025
Year Publications
1984 1
1985 3
1986 6
1987 3
1988 2
1989 5
1990 10
1991 6
1992 3
1993 3
1994 8
1995 6
1996 6
1997 4
1998 5
1999 12
2000 13
2001 16
2002 12
2003 20
2004 15
2005 18
2006 22
2007 16
2008 18
2009 15
2010 17
2011 22
2012 24
2013 15
2014 20
2015 27
2016 35
2017 38
2018 38
2019 50
2020 31
2021 50
2022 51
2023 53
2024 36
2025 22
Total 777
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Jorma Toppari publications per year - data summary

  • Jorma Toppari, a Medicine scholar from University of Turku, has 777 publications recorded across 42 years, from 1984 to 2025.
  • The oldest publication on record dates to 1984 and the most recent to 2025.
  • The most productive year is 2023, with 53 publications.
  • The least productive year with any output is 1984, with 1 publication.
  • The rate of publication averages 18.5 papers per year over the whole span, or 18.5 per year counting only the 42 years with at least one publication.
  • The last 5 years on the chart (2021-2025) hold 212 publications, 27% of the career total.
  • Split into equal eras - 1984-1997: 66 publications (4.7 per year); 1998-2011: 221 publications (15.8 per year); 2012-2025: 490 publications (35.0 per year).
  • Comparing the opening and closing eras, the overall trend of publication is rising.

Jorma Toppari publication distribution in Medicine in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Medicine in 2026. The highlighted bar marks where Jorma Toppari sits on this spectrum.

No. of scientists
200 400 600 800
Bar chart with 86 bars. Horizontal axis: publications, 101–120 to 1,796+. Vertical axis: number of scientists, 0 to 922. Most scientists, 922, have 341–360 publications. The last bar groups every scientist with 1,796 publications or more. The highlighted bar, 701–720 publications, is where this scientist sits. 101–120 publications: 5 scientists 121–140 publications: 26 scientists 141–160 publications: 73 scientists 161–180 publications: 155 scientists 181–200 publications: 230 scientists 201–220 publications: 363 scientists 221–240 publications: 487 scientists 241–260 publications: 545 scientists 261–280 publications: 722 scientists 281–300 publications: 768 scientists 301–320 publications: 834 scientists 321–340 publications: 895 scientists 341–360 publications: 922 scientists 361–380 publications: 838 scientists 381–400 publications: 861 scientists 401–420 publications: 918 scientists 421–440 publications: 806 scientists 441–460 publications: 771 scientists 461–480 publications: 751 scientists 481–500 publications: 713 scientists 501–520 publications: 617 scientists 521–540 publications: 610 scientists 541–560 publications: 537 scientists 561–580 publications: 504 scientists 581–600 publications: 509 scientists 601–620 publications: 396 scientists 621–640 publications: 386 scientists 641–660 publications: 371 scientists 661–680 publications: 340 scientists 681–700 publications: 336 scientists 701–720 publications: 307 scientists 721–740 publications: 259 scientists 741–760 publications: 230 scientists 761–780 publications: 228 scientists 781–800 publications: 217 scientists 801–820 publications: 204 scientists 821–840 publications: 186 scientists 841–860 publications: 177 scientists 861–880 publications: 155 scientists 881–900 publications: 139 scientists 901–920 publications: 145 scientists 921–940 publications: 116 scientists 941–960 publications: 133 scientists 961–980 publications: 91 scientists 981–1,000 publications: 96 scientists 1,001–1,020 publications: 77 scientists 1,021–1,040 publications: 70 scientists 1,041–1,060 publications: 63 scientists 1,061–1,080 publications: 77 scientists 1,081–1,100 publications: 49 scientists 1,101–1,120 publications: 54 scientists 1,121–1,140 publications: 49 scientists 1,141–1,160 publications: 51 scientists 1,161–1,180 publications: 35 scientists 1,181–1,200 publications: 39 scientists 1,201–1,220 publications: 26 scientists 1,221–1,240 publications: 37 scientists 1,241–1,260 publications: 36 scientists 1,261–1,280 publications: 27 scientists 1,281–1,300 publications: 32 scientists 1,301–1,320 publications: 28 scientists 1,321–1,340 publications: 17 scientists 1,341–1,360 publications: 30 scientists 1,361–1,380 publications: 28 scientists 1,381–1,400 publications: 17 scientists 1,401–1,420 publications: 21 scientists 1,421–1,440 publications: 15 scientists 1,441–1,460 publications: 12 scientists 1,461–1,480 publications: 12 scientists 1,481–1,500 publications: 18 scientists 1,501–1,520 publications: 14 scientists 1,521–1,540 publications: 17 scientists 1,541–1,560 publications: 15 scientists 1,561–1,580 publications: 6 scientists 1,581–1,600 publications: 2 scientists 1,601–1,620 publications: 12 scientists 1,621–1,640 publications: 11 scientists 1,641–1,660 publications: 8 scientists 1,661–1,680 publications: 5 scientists 1,681–1,700 publications: 5 scientists 1,701–1,720 publications: 10 scientists 1,721–1,740 publications: 12 scientists 1,741–1,760 publications: 14 scientists 1,761–1,780 publications: 6 scientists 1,781–1,795 publications: 5 scientists 1,796+ publications: 100 scientists
101–120 publications 1,796+

This scientist: 711 publications — 82nd percentile

82% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 1,796 publications or more.

View publications distribution as a table
Number of Medicine scientists by publication count, Research.com 2026 ranking edition. Based on 20,134 ranked scientists.
Publications Scientists This scientist
101–120 5
121–140 26
141–160 73
161–180 155
181–200 230
201–220 363
221–240 487
241–260 545
261–280 722
281–300 768
301–320 834
321–340 895
341–360 922
361–380 838
381–400 861
401–420 918
421–440 806
441–460 771
461–480 751
481–500 713
501–520 617
521–540 610
541–560 537
561–580 504
581–600 509
601–620 396
621–640 386
641–660 371
661–680 340
681–700 336
701–720 307 711
721–740 259
741–760 230
761–780 228
781–800 217
801–820 204
821–840 186
841–860 177
861–880 155
881–900 139
901–920 145
921–940 116
941–960 133
961–980 91
981–1,000 96
1,001–1,020 77
1,021–1,040 70
1,041–1,060 63
1,061–1,080 77
1,081–1,100 49
1,101–1,120 54
1,121–1,140 49
1,141–1,160 51
1,161–1,180 35
1,181–1,200 39
1,201–1,220 26
1,221–1,240 37
1,241–1,260 36
1,261–1,280 27
1,281–1,300 32
1,301–1,320 28
1,321–1,340 17
1,341–1,360 30
1,361–1,380 28
1,381–1,400 17
1,401–1,420 21
1,421–1,440 15
1,441–1,460 12
1,461–1,480 12
1,481–1,500 18
1,501–1,520 14
1,521–1,540 17
1,541–1,560 15
1,561–1,580 6
1,581–1,600 2
1,601–1,620 12
1,621–1,640 11
1,641–1,660 8
1,661–1,680 5
1,681–1,700 5
1,701–1,720 10
1,721–1,740 12
1,741–1,760 14
1,761–1,780 6
1,781–1,795 5
1,796+ 100
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Jorma Toppari publication distribution in Medicine in 2026 - data summary

  • The chart plots the publication count of all 20,134 Medicine scientists ranked by Research.com in 2026, grouped into 86 ranges running from 101–120 to 1,796+ publications.
  • Jorma Toppari, a Medicine scholar from University of Turku, records 711 publications - the 82nd percentile of the discipline.
  • 82% of ranked Medicine scientists score the same or lower than Jorma Toppari, and about 18% score higher.
  • The median of the discipline falls in the 441–460 publications range, and Jorma Toppari ranks above the median.
  • The most crowded range is 341–360 publications, holding 922 scientists (5% of the field).
  • 64% of the field sits in the lowest quarter of the value range (up to 521–540 publications), so the distribution is heavily right-skewed and high scores are rare.
  • The final bar has no upper bound: it groups every scientist with 1,796 publications or more, 100 scientists in all (<1% of the field).

Jorma Toppari D-index placement in Medicine in 2026

The chart shows the D-index (discipline H-index) distribution of Medicine scientists ranked by Research.com in 2026. The highlighted bar marks where Jorma Toppari sits on this spectrum.

No. of scientists
250 500 750 1,000
Bar chart with 75 bars. Horizontal axis: D-Index, 70–71 to 217+. Vertical axis: number of scientists, 0 to 1,027. Most scientists, 1,027, have 82–83 D-Index. The last bar groups every scientist with 217 D-Index or more. The highlighted bar, 116–117 D-Index, is where this scientist sits. 70–71 D-Index: 226 scientists 72–73 D-Index: 391 scientists 74–75 D-Index: 574 scientists 76–77 D-Index: 730 scientists 78–79 D-Index: 891 scientists 80–81 D-Index: 972 scientists 82–83 D-Index: 1,027 scientists 84–85 D-Index: 1,003 scientists 86–87 D-Index: 960 scientists 88–89 D-Index: 970 scientists 90–91 D-Index: 922 scientists 92–93 D-Index: 839 scientists 94–95 D-Index: 808 scientists 96–97 D-Index: 779 scientists 98–99 D-Index: 668 scientists 100–101 D-Index: 611 scientists 102–103 D-Index: 630 scientists 104–105 D-Index: 513 scientists 106–107 D-Index: 541 scientists 108–109 D-Index: 445 scientists 110–111 D-Index: 429 scientists 112–113 D-Index: 399 scientists 114–115 D-Index: 393 scientists 116–117 D-Index: 318 scientists 118–119 D-Index: 302 scientists 120–121 D-Index: 287 scientists 122–123 D-Index: 255 scientists 124–125 D-Index: 256 scientists 126–127 D-Index: 252 scientists 128–129 D-Index: 230 scientists 130–131 D-Index: 179 scientists 132–133 D-Index: 168 scientists 134–135 D-Index: 163 scientists 136–137 D-Index: 159 scientists 138–139 D-Index: 134 scientists 140–141 D-Index: 134 scientists 142–143 D-Index: 118 scientists 144–145 D-Index: 109 scientists 146–147 D-Index: 106 scientists 148–149 D-Index: 74 scientists 150–151 D-Index: 79 scientists 152–153 D-Index: 80 scientists 154–155 D-Index: 87 scientists 156–157 D-Index: 57 scientists 158–159 D-Index: 74 scientists 160–161 D-Index: 69 scientists 162–163 D-Index: 60 scientists 164–165 D-Index: 53 scientists 166–167 D-Index: 39 scientists 168–169 D-Index: 42 scientists 170–171 D-Index: 32 scientists 172–173 D-Index: 39 scientists 174–175 D-Index: 40 scientists 176–177 D-Index: 28 scientists 178–179 D-Index: 19 scientists 180–181 D-Index: 23 scientists 182–183 D-Index: 31 scientists 184–185 D-Index: 18 scientists 186–187 D-Index: 20 scientists 188–189 D-Index: 22 scientists 190–191 D-Index: 13 scientists 192–193 D-Index: 21 scientists 194–195 D-Index: 12 scientists 196–197 D-Index: 12 scientists 198–199 D-Index: 14 scientists 200–201 D-Index: 15 scientists 202–203 D-Index: 13 scientists 204–205 D-Index: 10 scientists 206–207 D-Index: 8 scientists 208–209 D-Index: 4 scientists 210–211 D-Index: 12 scientists 212–213 D-Index: 11 scientists 214–215 D-Index: 10 scientists 216 D-Index: 4 scientists 217+ D-Index: 98 scientists
70–71 D-Index 217+

This scientist: 117 D-Index — 80th percentile

80% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 217 D-Index or more.

View D-Index distribution as a table
Number of Medicine scientists by D-index, Research.com 2026 ranking edition. Based on 20,134 ranked scientists.
D-Index Scientists This scientist
70–71 226
72–73 391
74–75 574
76–77 730
78–79 891
80–81 972
82–83 1,027
84–85 1,003
86–87 960
88–89 970
90–91 922
92–93 839
94–95 808
96–97 779
98–99 668
100–101 611
102–103 630
104–105 513
106–107 541
108–109 445
110–111 429
112–113 399
114–115 393
116–117 318 117
118–119 302
120–121 287
122–123 255
124–125 256
126–127 252
128–129 230
130–131 179
132–133 168
134–135 163
136–137 159
138–139 134
140–141 134
142–143 118
144–145 109
146–147 106
148–149 74
150–151 79
152–153 80
154–155 87
156–157 57
158–159 74
160–161 69
162–163 60
164–165 53
166–167 39
168–169 42
170–171 32
172–173 39
174–175 40
176–177 28
178–179 19
180–181 23
182–183 31
184–185 18
186–187 20
188–189 22
190–191 13
192–193 21
194–195 12
196–197 12
198–199 14
200–201 15
202–203 13
204–205 10
206–207 8
208–209 4
210–211 12
212–213 11
214–215 10
216 4
217+ 98
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Jorma Toppari D-index placement in Medicine in 2026 - data summary

  • The chart plots the discipline H-index (D-index) of all 20,134 Medicine scientists ranked by Research.com in 2026, grouped into 75 ranges running from 70–71 to 217+ D-Index.
  • Jorma Toppari, a Medicine scholar from University of Turku, records 117 D-Index - the 80th percentile of the discipline.
  • 80% of ranked Medicine scientists score the same or lower than Jorma Toppari, and about 20% score higher.
  • The median of the discipline falls in the 94–95 D-Index range, and Jorma Toppari ranks above the median.
  • The most crowded range is 82–83 D-Index, holding 1,027 scientists (5% of the field).
  • 70% of the field sits in the lowest quarter of the value range (up to 106–107 D-Index), so the distribution is heavily right-skewed and high scores are rare.
  • The final bar has no upper bound: it groups every scientist with 217 D-Index or more, 98 scientists in all (<1% of the field).

Overview

Jorma Toppari is affiliated with the University of Turku in Finland and has a research profile spanning multiple fields related to medicine and molecular biology. Their work encompasses both broad and specialized areas, contributing extensively to the understanding of endocrinology, diabetes, genetics, and reproductive medicine.

Their main fields of study are Medicine and Biochemistry, Genetics and Molecular Biology, with subfields including Genetics, Endocrinology, Diabetes and Metabolism, Surgery, Public Health, Environmental and Occupational Health, and Reproductive Medicine.

The primary topics covered in their research include:

  • Diabetes and associated disorders
  • Pancreatic function and diabetes
  • Diabetes Management and Research
  • Celiac Disease Research and Management
  • Sperm and Testicular Function
  • Digestive system and related health
  • Testicular diseases and treatments

Jorma Toppari has contributed publications in a variety of frequent venues. These include:

  • Diabetes Care
  • The Journal of Clinical Endocrinology & Metabolism
  • Diabetologia
  • Diabetes
  • Frontiers in Endocrinology

Some notable recent papers by Toppari comprise:

  • European Academy of Andrology (EAA) guidelines on investigation, treatment and monitoring of functional hypogonadism in males, 2020, Andrology
  • European academy of andrology guidelines on Klinefelter Syndrome Endorsing Organization: European Society of Endocrinology, 2020, Andrology
  • A combined risk score enhances prediction of type 1 diabetes among susceptible children, 2020, Nature Medicine
  • Hypogonadism and Cryptorchidism, 2020, Frontiers in Endocrinology
  • Epigenetic inheritance of diet-induced and sperm-borne mitochondrial RNAs, 2024, Nature

Frequent collaborators in their research include:

  • Riitta Veijola
  • Mikael Knip
  • Jorma Ilonen
  • William Hagopian
  • Åke Lernmark

Best Publications

  • EDC-2: The Endocrine Society's Second Scientific Statement on Endocrine-Disrupting Chemicals

    A. C. Gore;V. A. Chappell;S. E. Fenton;J. A. Flaws

  • The timing of normal puberty and the age limits of sexual precocity: variations around the world, secular trends, and changes after migration

    Anne-Simone Parent;Grete Teilmann;Anders Juul;Niels E Skakkebaek

  • Male reproductive health and environmental xenoestrogens

    J Toppari;JC Larsen;P Christiansen;A Giwercman

  • Temporal development of the gut microbiome in early childhood from the TEDDY study

    Christopher J. Stewart;Christopher J. Stewart;Nadim J. Ajami;Jacqueline L. O’Brien;Diane S. Hutchinson

  • Male Reproductive Disorders and Fertility Trends: Influences of Environment and Genetic Susceptibility

    Niels E Skakkebaek;Ewa Rajpert-De Meyts;Germaine M Buck Louis;Jorma Toppari

  • State of the Science of Endocrine Disrupting Chemicals 2012. Summary for Decision-Makers

    Georg Becher;Åke Bergman;Poul Bjerregaard;Riana Bornman

  • The human gut microbiome in early-onset type 1 diabetes from the TEDDY study

    Tommi Vatanen;Eric A. Franzosa;Eric A. Franzosa;Randall Schwager;Surya Tripathi

  • Human breast milk contamination with phthalates and alterations of endogenous reproductive hormones in infants three months of age

    Katharina M. Main;Gerda K. Mortensen;Marko M. Kaleva;Kirsten A. Boisen

  • Executive Summary to EDC-2: The Endocrine Society's Second Scientific Statement on Endocrine-Disrupting Chemicals

    A. C. Gore;V. A. Chappell;S. E. Fenton;J. A. Flaws

  • Difference in prevalence of congenital cryptorchidism in infants between two Nordic countries.

    Boisen Ka;Kaleva M;Main Km;Virtanen He

  • Regional differences in semen quality in Europe.

    Niels Jørgensen;Anne-Grethe Andersen;Florence Eustache;D. Stewart Irvine

  • Public Health Implications of Altered Puberty Timing

    Mari S Golub;Gwen W Collman;Paul M D Foster;Carole A Kimmel

  • The 6 year incidence of diabetes-associated autoantibodies in genetically at-risk children: the TEDDY study.

    Jeffrey P. Krischer;Kristian F. Lynch;Desmond A. Schatz;Jorma Ilonen;Jorma Ilonen

  • Flame retardants in placenta and breast milk and cryptorchidism in newborn boys.

    Katharina Maria Main;Hannu Kiviranta;Helena Eeva Virtanen;Erno Sundqvist

  • Longitudinal Reproductive Hormone Profiles in Infants: Peak of Inhibin B Levels in Infant Boys Exceeds Levels in Adult Men

    Anna-Maria Andersson;Jorma Toppari;Anne-Maarit Haavisto;Jørgen H. Petersen

  • Environmental Factors and Puberty Timing: Expert Panel Research Needs

    Germaine M. Buck Louis;L. Earl Gray;Michele Marcus;Sergio R. Ojeda

  • Nordic consensus on treatment of undescended testes

    E Martin Ritzén;Anders Bergh;R Bjerknes;P Christiansen

  • Is human fecundity declining

    Niels E Skakkebaek;Niels Jørgensen;Katharina M Main;Ewa Rajpert-De Meyts

  • East–West gradient in semen quality in the Nordic–Baltic area: a study of men from the general population in Denmark, Norway, Estonia and Finland

    Niels Jørgensen;Elisabeth Carlsen;Ingrid Nermoen;Margus Punab

  • Paracrine regulation of mammalian oocyte maturation and male germ cell survival.

    Kazuhiro Kawamura;Jin Kumagai;Satoko Sudo;Sang-Young Chun

Frequent Co-Authors

Jorma Ilonen
Jorma Ilonen University of Turku
Riitta Veijola
Riitta Veijola Oulu University Hospital
Mikael Knip
Mikael Knip University of Helsinki
Niels E. Skakkebæk
Niels E. Skakkebæk University of Copenhagen
Jeffrey P. Krischer
Jeffrey P. Krischer University of South Florida
Marian Rewers
Marian Rewers University of Colorado Denver
William Hagopian
William Hagopian University of Washington
Suvi M. Virtanen
Suvi M. Virtanen Tampere University
Anette-G. Ziegler
Anette-G. Ziegler Technical University of Munich
Katharina M. Main
Katharina M. Main University of Copenhagen

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