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This sheet was compiled from PubMed (NIH) abstracts using AI assistance. Every factual claim is cited to a real PubMed article (see the source list). It has not yet been human-reviewed — confirm with a healthcare provider before use.
Compiled from 30 PubMed articles · model: gemma4:31b
Summary
Cajanus cajan, known as pigeon pea, is a commercial legume crop grown in sub-tropical and semi-arid tropical regions, valued for its nutritional and medicinal properties [PMID:36296470, PMID:35110974].
Background
Cajanus cajan (pigeon pea) is a member of the Fabaceae family and is an important orphan crop primarily grown by smallholder farmers in Africa and India [PMID:36296470, PMID:32020732]. It is utilized as a food and feed source, particularly for protein supplementation in cereal-based diets [PMID:35110974].
Traditional uses
It is used in folk medicine to treat various disorders, including toothache, dizziness, diabetes, stomachache, female ailments, and chronic infections [PMID:36296470]. It is also recognized as a traditional Chinese medicinal plant [PMID:39598829].
Active compounds
Active compounds include stilbenes (such as cajaninstilbene acid) [PMID:39598829, PMID:35662649], isocoumarins (cajanolactone B, C, D1, and D2) [PMID:38444970], phthalide derivatives (Cajanthalides A, B, and C) [PMID:40032233], isoflavonoids, anthraquinones, and pterocarpanoids [PMID:35448466]. Leaf extracts also contain flavones, flavonols, flavanones, isoflavones, coumarins, and chalcones [PMID:33830649].
Mechanism of action
Cajaninstilbene acid (CSA) and its derivatives are investigated for multi-therapeutic actions, including antioxidant, anti-inflammatory, and immune regulation activities [PMID:39598829]. Certain peptides from pigeon pea protein inhibit renin and angiotensin-I-converting enzyme (ACE) activities [PMID:36250929].
Clinical evidence
Evidence DHyperglycemia/Diabetes
Extract of germinated pigeon pea reduced fasting blood glucose levels in alloxan-induced diabetic rats [PMID:27625782]. Red gram prebiotics decreased serum glucose levels by 14.92% compared to a control group in Wistar NIN rats [PMID:28837379].
Evidence DHyperlipidemia
Red gram prebiotics decreased serum triglycerides by 32.76% compared to a control group in Wistar NIN rats [PMID:28837379].
Evidence DBacterial Infection (S. aureus)
Secondary metabolites from seeds demonstrated in vitro antibacterial properties against multidrug-resistant Staphylococcus aureus [PMID:35448466].
Evidence DFungal Infection
Cajanthalide B exhibited moderate antifungal activity against C. neoformans, C. albicans, and M. furfur with MIC values of 40 μg/mL [PMID:40032233].
Safety & adverse effects
Legumes, including red gram (Cajanus cajan), contain IgE binding proteins that may cause allergenic responses ranging from mild skin reactions to life-threatening anaphylactic reactions [PMID:22555630].
Evidence summary
The current evidence is primarily based on in vitro studies and animal models (Level D), with some review articles (Level C) summarizing traditional uses and phytochemical profiles. No human clinical trials (Level B) or meta-analyses (Level A) were provided.
PubMed sources
1.PMID: 31893440 (2020) — Updates on Legume Genome Sequencing. · Methods in molecular biology (Clifton, N.J.)
2.PMID: 38444970 (2024) — Four new isocoumarins from Cajanus cajan. · RSC advances
3.PMID: 36296470 (2022) — Revisiting the Nutritional, Chemical and Biological Potential of Cajanus cajan (L.) Millsp. · Molecules (Basel, Switzerland)
4.PMID: 22555630 (2013) — A comprehensive review of legume allergy. · Clinical reviews in allergy & immunology
5.PMID: 32020732 (2020) — Trait associations in the pangenome of pigeon pea (Cajanus cajan). · Plant biotechnology journal
Government sources
No direct government monograph is available for this herb. The content below is AI-generated and has not been verified against an authoritative government source. Use the search links to check official sources before relying on this information.
10.PMID: 36241771 (2022) — Cajanus cajan shows multiple novel adaptations in response to regular mechanical stress. · Journal of plant research
11.PMID: 39598829 (2024) — Cajaninstilbene Acid and Its Derivative as Multi-Therapeutic Agents: A Comprehensive Review. · Molecules (Basel, Switzerland)
12.PMID: 38564410 (2024) — Pigeon pea crop stage strongly influences plant susceptibility to Helicoverpa armigera (Lepidoptera: Noctuidae). · Journal of economic entomology
13.PMID: 35366099 (2022) — Comparative analysis of herbivory responsive miRNAs to delineate pod borer (Helicoverpa armigera) resistance mechanisms in Cajanus cajan and its wild relative Cajanus scarabaeoides. · Plant cell reports
14.PMID: 35448466 (2022) — Antibiotic Isoflavonoids, Anthraquinones, and Pterocarpanoids from Pigeon Pea (Cajanus cajan L.) Seeds against Multidrug-Resistant Staphylococcus aureus. · Metabolites
15.PMID: 36250929 (2022) — Pigeon pea penta- and hexapeptides with antioxidant properties also inhibit renin and angiotensin-I-converting enzyme activities. · Journal of food biochemistry
16.PMID: 37751043 (2023) — Identification, characterization, and comprehensive expression profiling of floral master regulators in pigeon pea (Cajanus cajan [L.] Millspaugh). · Functional & integrative genomics
17.PMID: 28837379 (2018) — Hypolipidemic Effect of Red Gram (Cajanus cajan L.) Prebiotic Oligosaccharides in Wistar NIN Rats. · Journal of dietary supplements
18.PMID: 35662649 (2022) — Stilbenes from the leaves of Cajanus cajan and their in vitro anti-inflammatory activities. · Fitoterapia
19.PMID: 40032233 (2025) — Three new antifungal phthalide derivatives from Cajanus cajan. · Fitoterapia
20.PMID: 37430905 (2022) — Substituting Whole Wheat Flour with Pigeon Pea (Cajanus cajan) Flour in Chapati: Effect on Nutritional Characteristics, Color Profiles, and In Vitro Starch and Protein Digestion. · Foods (Basel, Switzerland)
21.PMID: 33560125 (2021) — Absorption, Metabolism, and Excretion of Cajaninstilbene Acid. · Journal of agricultural and food chemistry
22.PMID: 39597614 (2024) — Microbes in Agriculture: Prospects and Constraints to Their Wider Adoption and Utilization in Nutrient-Poor Environments. · Microorganisms
23.PMID: 32564200 (2021) — Bioenvironmental Trace Elements in Warm Climatic Plant, Pigeon Pea (Cajanus cajan). · Biological trace element research
24.PMID: 42328141 (2026) — Techno-functional and sensory properties of pigeon pea-rice protein blends for beverage applications. · Journal of food science and technology
25.PMID: 33830649 (2021) — Components identification and isomers differentiation in pigeon pea (Cajanus cajan L.) leaves by LC-MS. · Journal of separation science
26.PMID: 34557206 (2021) — Genomic Diversity of Pigeon Pea (Cajanus cajan L. Millsp.) Endosymbionts in India and Selection of Potential Strains for Use as Agricultural Inoculants. · Frontiers in plant science
27.PMID: 34249596 (2021) — Induction of moisture stress tolerance by Bacillus and Paenibacillus in pigeon pea (Cajanus cajan. L). · 3 Biotech
28.PMID: 35538269 (2022) — Genome-wide transcriptome analysis and characterization of the cytochrome P450 flavonoid biosynthesis genes in pigeon pea (Cajanus cajan). · Planta
29.PMID: 27625782 (2016) — Germinated Pigeon Pea (Cajanus cajan): a novel diet for lowering oxidative stress and hyperglycemia. · Food science & nutrition