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Topic · Cellular and Molecular Neuroscience

Antioxidants, Aging, Portulaca oleracea

Antioxidants, Aging, Portulaca oleracea is a research topic within Cellular and Molecular Neuroscience. Science Explorer counts 4.5k 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 effects of chronic systemic exposure to D-galactose on aging, neurodegeneration, oxidative damage, and cognitive impairment in animal models. The protective effects of various natural compounds, including R-a-lipoic acid, ursolic acid, melatonin, and troxerutin, are also investigated. The role of Portulaca oleracea (purslane) in ameliorating the detrimental effects of D-galactose is a recurring theme in the research.

  • D-Galactose
  • Aging
  • Neurodegeneration
  • Oxidative Stress
  • Memory Impairment
  • Antioxidant
  • Portulaca Oleracea
  • Cognitive Dysfunction
  • Neuroprotective Effects
  • Inflammation
Research works
4.5k
fractional, since 1950
In the world top 10%
464
per year above
Top-10% rate
10.3%
share of its works in the world top 10%
Growth, 2018-21 → 2022-25
+47%
the tick is no change
Largest producer
China
50% of the 10 largest, 2022-now
Antioxidants, Aging, Portulaca oleracea

Which countries lead Antioxidants, Aging, Portulaca oleracea research?

By volume, China and India publish the most (561 and 122 works in 2022-now).

By volume, 2022-now

  1. 1 China 561 works
  2. 2 India 122 works
  3. 3 United States 80 works
  4. 4 Iran 76 works
  5. 5 Brazil 75 works
  6. 6 Germany 51 works
  7. 7 Indonesia 44 works
  8. 8 Egypt 42 works
  9. 9 South Korea 37 works
  10. 10 Türkiye 33 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: 50.1%India: 10.9%United States: 7.2%Iran: 6.8%6 others listed: 25.1%50%largest
China561 · 50.1%India122 · 10.9%United States80 · 7.2%Iran76 · 6.8%6 others listed281 · 25.1%

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

Which institutions lead Antioxidants, Aging, Portulaca oleracea research?

By volume in 2022-now, Chinese Academy of Medical Sciences & Peking Union Medical College publishes the most Antioxidants, Aging, Portulaca oleracea research, followed by Beijing University of Chinese Medicine and Shanghai University of Traditional Chinese Medicine.

By volume, 2022-now

  1. 1 Chinese Academy of Medical Sciences & Peking Union Medical CollegeChina 18 works
  2. 2 Beijing University of Chinese MedicineChina 12 works
  3. 3 Shanghai University of Traditional Chinese MedicineChina 12 works
  4. 4 Nanjing University of Chinese MedicineChina 12 works
  5. 5 Chinese Academy of SciencesChina 11 works
  6. 6 Islamic Azad University, TehranIran 10 works
  7. 7 Chinese Academy of Agricultural SciencesChina 9 works
  8. 8 Mashhad University of Medical SciencesIran 7 works
  9. 9 Heilongjiang University of Chinese MedicineChina 7 works
  10. 10 Shandong University of Traditional Chinese MedicineChina 7 works

Who are the leading researchers in Antioxidants, Aging, Portulaca oleracea?

The most-cited researchers publishing on Antioxidants, Aging, Portulaca oleracea include Amirhossein Sahebkar, Mostafa Qorbani and Barry B. Halliwell.

  1. 1 Amirhossein Sahebkar Iran 258k citations
  2. 2 Mostafa Qorbani Iran 184k citations
  3. 3 Barry B. Halliwell United Kingdom 179k 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 Antioxidants, Aging, Portulaca oleracea?

The most cited paper in Antioxidants, Aging, Portulaca oleracea is "Mechanisms and functions of cellular senescence" (Nicolás Herranz, Jesús Gil, 2018), with 1,227 citations. Next come "Fisetin is a senotherapeutic that extends health and lifespan" (1,040) and "Adverse Cardiovascular and Central Nervous System Events Associated with Dietary Supplements Containing Ephedra Alkaloids" (964).

Most cited papers
#PaperReleasedCitations
1 Mechanisms and functions of cellular senescence Nicolás Herranz, Jesús Gil · Journal of Clinical Investigation Open access Apr 2018 1,227
2 Fisetin is a senotherapeutic that extends health and lifespan Matthew J. Yousefzadeh et al. · EBioMedicine Open access 29 Sep 2018 1,040
3 Adverse Cardiovascular and Central Nervous System Events Associated with Dietary Supplements Containing Ephedra Alkaloids CHRISTINE A. HALLER, N BENOWITZ · New England Journal of Medicine Open access 21 Dec 2000 964
4 Millet based Nutritious Powder for the Geriatric Population Abir Chakravorty, Jyotsana Patel, Arpit Patidar et al. · International Journal of Innovative Science and Research Technology (IJISRT) Open access 11 May 2024 959
5 Role of Telomeres and Telomerase in Aging and Cancer Jerry W. Shay · Cancer Discovery Open access 30 Mar 2016 684
All 99 most cited papers, with filters and sorting

Where is Antioxidants, Aging, Portulaca oleracea research done?

The largest centres of Antioxidants, Aging, Portulaca oleracea research in 2022-now are Beijing (China), Guangzhou (China), Shanghai (China) and Nanjing (China). Among places with at least 20 works in it, it is an unusually large share of all research in Guangzhou.

Largest cities, 2022-now

  1. 1 BeijingChina 92 works
  2. 2 GuangzhouChina 38 works
  3. 3 ShanghaiChina 32 works
  4. 4 NanjingChina 24 works
  5. 5 TehranIran 20 works
  6. 6 ChengduChina 19 works
  7. 7 HangzhouChina 18 works
  8. 8 ChangchunChina 16 works
  9. 9 JinanChina 16 works
  10. 10 ChangshaChina 14 works

Where it is the local speciality

  1. GuangzhouCN · 37.6 works3.0×
← less than its size predicts1×more →

Location quotient: how much more of its research is in Antioxidants, Aging, Portulaca oleracea than the world average.

See Antioxidants, Aging, Portulaca oleracea on the map

Where is the best place to study Antioxidants, Aging, Portulaca oleracea?

Among universities, judged by research, Chinese Academy of Medical Sciences & Peking Union Medical College, Nanjing University of Chinese Medicine and Beijing University of 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.

0%5%10%15%mean 8.64%fractional works in this field (log) →share of work in the world top 10% →Nanjing University o…Chinese Academy of M…Beijing University o…Shanghai University …
above the meannear itbelow it

One dot per university in the first ten of the table below, at the default weights. The upper left is the interesting corner: small places doing unusually strong work.

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
1Chinese Academy of Medical Sciences & Peking Union Medical CollegeChina 97.611.0%13.0×18 +74.2%
2Nanjing University of Chinese MedicineChina 66.312.0%36.3×12 +107.7%
3Beijing University of Chinese MedicineChina 30.57.4%40.9×12 +75.9%
4Shanghai University of Traditional Chinese MedicineChina 30.37.4%34.6×12 +87.3%
5Islamic Azad University, TehranIran 19.25.4%4.9×10 -17.0%

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 Antioxidants, Aging, Portulaca oleracea, country by country

Is Antioxidants, Aging, Portulaca oleracea research growing?

Output in 2022-2025 was 47% higher than in 2018-2021, peaking in 2025. The fastest-growing topics are Antioxidants, Aging, Portulaca oleracea.

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 Antioxidants, Aging, Portulaca oleracea as a percentage of every work published that year, 0.0047% in 2024.

still counting0.0050%0.010%Antioxidants, Aging, Portulaca oleracea0.0076% in 202519801990200020102020

Fractional works of Antioxidants, Aging, Portulaca oleracea 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%Antioxidants, Aging, Portulaca oleracea10.6% 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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