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Curcuma longa L.
{{#seo:
|title=Charak Samhita
|titlemode=append
|keywords= Curcuma longa L.,Haridra, haldi, Turmeric, Golden spice, cosmetics, Charak Samhita, Dravyaguna, carakasamhitaonline, carakasamhita, caraka samhita, Ayurveda, Charak Samhita English translation, ancient Ayurveda text, Indian system of medicine, Ayurveda, Charak, Charaka Samhita, agnivesha, atreya, gopal basisht, yogesh deole, charak samhita wikipedia edition, charak samhita new edition, charaka samhita new edition, carak samhita new edition, caraka samhita new edition, research on charak samhita, text book charak samhita, fundamental principles of ayurveda, basic concepts of ayurveda,
|description= Haridra (Curcuma longa L.), widely known as turmeric, is a perennial rhizomatous herb of the family Zingiberaceae
|image=http://www.carakasamhitaonline.com/resources/assets/ogimgs.jpg
|image_alt=charak samhita
|type=article
}}
 
[https://en.wikipedia.org/wiki/Turmeric Curcuma longa L.]


{{Infobox
{{Infobox
Line 7: Line 17:
|label2 = Botanical name(s)
|label2 = Botanical name(s)
|data2 = Curcuma longa L.
|data2 = Curcuma longa L.
|label3 = Contributors
|label3 = Family
|data3 = --
|data3 = Zingiberaceae
|label4 = Year of publication  
|label4 = Availability
|data4 =  2021
|data4 = Available
|label5 = Publisher  
|label5 = Contributors
|data5 =  [[Charak Samhita Research, Training and Skill Development Centre]]
|data5 = Team Dravyaguna
|label6 = DOI  
|label6 = Year of publication  
|data6 = Awaited
|data6 =  2026
|label7 = Publisher  
|data7 =  [[Charak Samhita Research, Training and Skill Development Centre]]
|label8 = DOI  
|data8 = Awaited
}}
}}


==English name ==  
'''Haridra''' (''Curcuma longa'' L.), widely known as turmeric, is a perennial rhizomatous herb of the family Zingiberaceae<ref name="Fuloria2022">{{cite journal |last1=Fuloria |first1=Shivkanya |last2=Mehta |first2=Jyoti |last3=Chandel |first3=Aditi |last4=Sekar |first4=Mahendran |last5=Rani |first5=Nur Najihah Izzati Mat |year=2022 |title=A Comprehensive Review on the Therapeutic Potential of Curcuma longa Linn. in Relation to its Major Active Constituent Curcumin |journal=Frontiers in Pharmacology |volume=13 |pages=820806 |doi=10.3389/fphar.2022.820806 |pmc=8990857}}</ref>. Celebrated in [[Ayurveda|Ayurvedic medicine]] for millennia as a potent ''Vishaghna'' (antitoxic), ''Kushthaghna'' (alleviator of skin diseases), and ''Pramehahara'' (antidiabetic) agent, modern pharmacological research has extensively validated its molecular mechanisms<ref name="Razavi2021">{{cite journal |last1=Razavi |first1=Bibi Marjan |last2=Ghasemzadeh Rahbardar |first2=Mahboobeh |last3=Hosseinzadeh |first3=Hossein |year=2021 |title=A review of therapeutic potentials of turmeric (Curcuma longa) and its active constituent, curcumin, on inflammatory disorders, pain, and their related patents |journal=Phytotherapy Research |volume=35 |issue=12 |pages=6489–6513 |doi=10.1002/ptr.7224 |pmid=34312922}}</ref>. Its therapeutic actions are primarily driven by polyphenolic curcuminoids and volatile sesquiterpenes.<ref name="Hewlings2017">{{cite journal |last1=Hewlings |first1=Susan J. |last2=Kalman |first2=Douglas S. |year=2017 |title=Curcumin: A Review of Its Effects on Human Health |journal=Foods |volume=6 |issue=10 |pages=92 |doi=10.3390/foods6100092 |pmid=29065496 |pmc=5664031}}</ref>
 
[[File:Haridra.jpg|thumb|'''Haridra (''Curcuma longa'')''']]
 
==Therapeutic Uses==
 
Pandu (Anaemia and diseases related to blood deficiency)), Prameha (Obstinate Urinary disorders including Diabetes mellitus), Vrana (Wound), Vishavikara (Poisons), Kushtha (Obstinate skin diseases), Tvakroga (Skin disorders), Shitapitta (Urticaria), Pinasa (Rhinorrhoea)<ref>Anonymous. The Ayurvedic Pharmacopoeia of India. Department of Ayush, Ministry of Health and Family welfare, Govt. of India, New Delhi, Part I. 1986; Volume I:30</ref>
 
==Other Varieties / Botanical names==
* Curcuma domestica Valeton
* Curcuma amada
* Curcuma aromatica
* Curcuma angustifolia
* Curcuma zedoria
 
==Identification Characters==
* '''Pita''' – Rhizome of Haridra is yellow and flowers are also yellow coloured.
* '''Kanchani''' – Haridra rhizome is yellow like that of Gold.
* '''Nishakhya''' – Turmeric is also known by names like Nisha, Rajani, etc., owing to its yellow-colored rhizome.
* '''Varavarnini''' – Haridra has an attractive bright yellow color.


Turmeric
==Types==
* Bhavaprakasha Nighantu
Mentioned 4 types<ref>Shri Bhavamishra, Bhavaprakash Nighantu, Haritakyadi Varga, Verse no. 171 Edited by
Padmashree Pro. Krushnachandra Chunekar, Reprint Edition, Chaukhambha Bharati
Academy, 2015;</ref>
# Haridra (Curcuma longa)
# Amragandhi Haridra (Curcuma amada)
# Vana Haridra (Curcuma aromatica)
# Daru Haridra (Berberis aristata)


== Synonyms in Charak Samhita==
* Dalhana
# Pinda Haridra
# Daru Haridra


Haridra
== Synonyms in Bhavaprakasha Nighantu==


== Reference in Charak Samhita and its actions ==  
Haridra, Kanchani, Pita, Nisha, Varavarnini, Krumighna, Haladi, Yoshitpriya, Hattavilasini<ref>Shri Bhavamishra, Bhavaprakash Nighantu, Haritakyadi Varga, Verse no. 171 Edited by
Padmashree Pro. Krushnachandra Chunekar, Reprint Edition, Chaukhambha Bharati
Academy, 2015;</ref>
 
== Ayurvedic pharmacological properties ==  


{| class="wikitable"
{| class="wikitable"
|+ Herbs and their activities
|+ Properties
|-
|-
! Sr.no. !! Reference in Charak Samhita !! Activity
! Sr.no. !! Pharmacological criteria !! Properties
|-
|-
| 1 || Sutra sthana 2/5 || Sirovirechana (Errhine therapy)
| 1 || Taste ([[rasa]])  || Bitter (tikta), Pungent (katu)
|-
|-
| 2 || Sutra sthana 3/3 || Siddhatamachurnapradeha
| 2 || Potency ([[veerya]]) || Hot (ushna)
|-
|-
| 3 || Sutra sthana 4/9(3) || Lekhaniyamahakashaya
| 3 || Post digestion effect ([[vipaka]]) || Pungent (katu)
|-
|-
| 4 || Sutra sthana 4/9(13) || Kushthaghnamahakashay
| 4 || Qualities ([[guna]])|| Rough (ruksha), Light (laghu)
|-
|-
| 5 || Sutra sthana 4/9(16) || Vishaghnamahakashay
| 5 || Actions ([[karma]]) || Pacify [[kapha]], [[vata]] and [[pitta]]. It also expels the [[pitta]] (pitta rechak)
|-
| 6 || [[Kalpa Sthana]] 7/16 || Preparations of Trivrut
|-
|-
|6
|Therapeutics
|Varnya (Complexion enhancing), Krimighna (Antimicrobial/Antiparasitic), Pramehahara (Anti-diabetic), Lekhana (Scraping/Anti-lipidemic), Vrana Ropana(Wound healing)
|}
|}


== Ayurvedic pharmacological properties ==  
== Reference in Charak Samhita and its actions ==  


{| class="wikitable"
{| class="wikitable"
|+ Properties
|+ Herbs and their activities
|-
|-
! Sr.no. !! Pharmacological criteria !! Properties
! Sr.no. !! Reference in Charak Samhita !! Activity
|-
|-
| 1 || Taste ([[rasa]])  || Bitter (tikta), Pungent (katu)
| 1 ||Cha.Sa.[[Sutra Sthana]] 2/5 || Sirovirechana (Errhine therapy)
|-
|-
| 2 || Potency ([[veerya]]) || Hot (ushna)
| 2 ||Cha.Sa.[[Sutra Sthana]] 3/3 || Siddhatamachurnapradeha(paste) for local application
|-
|-
| 3 || Post digestion effect ([[vipaka]]) || Pungent (katu)
| 3 ||Cha.Sa.[[Sutra Sthana]] 4/9(3) || Lekhaniyamahakashaya(emaciating)  
|-
|-
| 4 || Qualities ([[guna]])|| Rough (ruksha), Light (laghu)
| 4 ||Cha.Sa.[[Sutra Sthana]] 4/9(13) || Kushthaghnamahakashay (anti – dermatosis)  
|-
|-
| 5 || Actions ([[karma]]) || Pacify [[kapha]], [[vata]] and [[pitta]]. It also expels the [[pitta]] (pitta rechak)  
| 5 ||Cha.Sa.[[Sutra Sthana]] 4/9(16) || Vishaghnamahakashay(anti- toxic)  
|-
|-
| 6 ||Cha.Sa.[[Kalpa Sthana]] 7/16 || Preparations of Trivrut
|}
|}
==Dose==
1-3 gm of the drug in powder form.<ref>Anonymous. The Ayurvedic Pharmacopoeia of India. Department of Ayush, Ministry of Health and Family welfare, Govt. of India, New Delhi, Part I. 1986; Volume I:30</ref>
==Important Formulations==
As per A.P.I.<ref>Anonymous. The Ayurvedic Pharmacopoeia of India. Department of Ayush, Ministry of Health and Family welfare, Govt. of India, New Delhi, Part I. 1986; Volume I:30</ref>
* Haridra Khanda


== Current availability==  
== Current availability==  


Available  
Available  
*India-
Andhra Pradesh, Tamil Nadu, Orissa, Karnataka, West Bengal, Gujarat, Meghalaya, Maharashtra and Assam.
*Out of India-
Asian countries (Pakistan, Malaysia, Myanmar, Vietnam, Thailand, Philipines, Japan, Korea & China)
Bangladesh, Cambodia, Indonesia, Peru, Madagascar, Australia, Africa, Taiwan, Haiti, Jamaica, Sri Lanka and West Indies


== Current researches ==
== Current researches ==


[[Category: Database of herbs and minerals | Herbs]]
=== Major Bioactive Compounds ===
  This article is under development ..
The therapeutic efficacy of ''Curcuma longa'' is attributed to two primary chemical fractions<ref name="Fuloria2022"/>:
 
{| class="wikitable"
|+ Bioactive Fractions of ''Curcuma longa''
|-
! Compound Category !! Major Constituents !! Biological Significance
|-
| '''Curcuminoids''' (~3–6%) || Curcumin (Curcumin I), Demethoxycurcumin (Curcumin II), Bisdemethoxycurcumin (Curcumin III) || Primary anti-inflammatory, antioxidant, neuroprotective, and antineoplastic agents.
|-
| '''Volatile Essential Oils''' (~3–7%) || α-turmerone, β-turmerone, ar-turmerone, α-atlantone, xanthorrhizol || Antimicrobial, neurogenic, anti-fungal, and bioavailability-enhancing properties.
|}
 
== Pharmacological Mechanisms & Scientific Evidence ==
 
=== Anti-inflammatory & Immunomodulatory Efficacy ===
Curcumin acts as a multi-target anti-inflammatory agent. Unlike synthetic NSAIDs that target specific enzymes, curcumin downregulates key inflammatory cascades<ref name="Hewlings2017"/>:
* '''Inhibition of NF-κB Pathway:''' Suppresses nuclear factor kappa B (NF-κB) activation, inhibiting downstream pro-inflammatory cytokines such as TNF-α, IL-1β, IL-6, and IL-8<ref name="Razavi2021"/>.
* '''Enzymatic Downregulation:''' Directly inhibits cyclooxygenase-2 ('''COX-2'''), 5-lipoxygenase ('''5-LOX'''), and inducible nitric oxide synthase ('''iNOS''')<ref name="Hewlings2017"/>.
 
Systematic reviews and meta-analyses of randomized controlled trials (RCTs) confirm that turmeric extracts significantly reduce joint pain and stiffness in knee osteoarthritis patients with efficacy comparable to ibuprofen, but with fewer gastrointestinal adverse events<ref name="Daily2016">{{cite journal |last1=Daily |first1=James W. |last2=Yang |first2=Mini |last3=Park |first3=Sunmin |year=2016 |title=Efficacy of Turmeric Extracts and Curcumin for Alleviating the Symptoms of Joint Arthritis: A Systematic Review and Meta-Analysis of Randomized Clinical Trials |journal=Journal of Medicinal Food |volume=19 |issue=8 |pages=717–729 |doi=10.1089/jmf.2016.3705 |pmid=27533649 |pmc=5003001}}</ref><ref name="Zeng2022">{{cite journal |last1=Zeng |first1=Liuting |last2=Yang |first2=Tiejun |last3=Yang |first3=Kailin |last4=Yu |first4=Ganpeng |last5=Li |first5=Jun |year=2022 |title=Efficacy and Safety of Curcumin and Curcuma longa Extract in the Treatment of Arthritis: A Systematic Review and Meta-Analysis of Randomized Controlled Trial |journal=Frontiers in Immunology |volume=13 |pages=891822 |doi=10.3389/fimmu.2022.891822 |pmc=9353077}}</ref>.
 
=== Antioxidant & Cytoprotective Activity ===
 
Curcumin functions both as a direct free-radical scavenger and as an inducer of endogenous antioxidant defenses<ref name="Hewlings2017"/>:
* Scavenges reactive oxygen species (ROS) and reactive nitrogen species (RNS).
* Activates the '''Nrf2-ARE pathway''', upregulating phase II detoxifying enzymes, including superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (GPx), and heme oxygenase-1 (HO-1)<ref name="Hewlings2017"/>.
 
=== Metabolic & Antidiabetic Actions ===
 
Aligning with its classical classification as a ''Pramehahara'' herb, ''Curcuma longa'' exhibits pronounced metabolic regulation<ref name="Fuloria2022"/>:
* '''AMPK Activation:''' Activates AMPK, suppressing hepatic gluconeogenesis and enhancing glucose uptake in skeletal muscle.
* '''Insulin Sensitivity:''' Improves insulin receptor phosphorylation and downregulates inflammatory markers in adipose tissue that drive insulin resistance.
* '''Lipid Modulation:''' Lowers serum low-density lipoprotein (LDL) cholesterol and triglycerides while raising high-density lipoprotein (HDL) levels through PPAR-γ modulation<ref name="Hewlings2017"/>.
 
=== Neuroprotective & Cognitive Efficacy ===
 
* '''Amyloid-β Aggregation Inhibition:''' Curcumin crosses the blood–brain barrier, directly binding to and destabilizing amyloid-beta plaques in Alzheimer's disease models<ref name="Noorafshan2013">{{cite journal |last1=Noorafshan |first1=Ali |last2=Ashkani-Esfahani |first2=Soheil |year=2013 |title=A Review of Therapeutic Effects of Curcumin |journal=Current Pharmaceutical Design |volume=19 |issue=11 |pages=2032–2046 |doi=10.2174/1381612811319110006 |pmid=23116311}}</ref>.
* '''Neurogenesis Promotion:''' ''ar-Turmerone'' has been shown to induce neural stem cell proliferation and differentiation.
* '''BDNF Upregulation:''' Elevates Brain-Derived Neurotrophic Factor (BDNF) levels, counteracting neurodegenerative processes and stress-induced cognitive decline<ref name="Noorafshan2013"/>.
 
=== Wound Healing & Dermatological Applications ===
 
Traditional use as ''Vrana Ropana'' (wound healer) is validated by its ability to accelerate tissue repair<ref name="Fuloria2022"/>:
* Enhances epithelialization, increases collagen deposition, and speeds up tissue remodeling.
* Exhibits broad-spectrum antibacterial activity against pathogens such as ''Staphylococcus aureus'' and ''Pseudomonas aeruginosa''.
 
== Bioavailability & Pharmacokinetic Strategies ==
 
Despite high bioactivity ''in vitro'', native curcumin displays poor systemic bioavailability due to low aqueous solubility, poor intestinal absorption, and rapid hepatic metabolism (glucuronidation and sulfation)<ref name="Anand2007">{{cite journal |last1=Anand |first1=Preetha |last2=Kunnumakkara |first2=Ajaikumar B. |last3=Newman |first3=Robert A. |last4=Aggarwal |first4=Bharat B. |year=2007 |title=Bioavailability of curcumin: problems and promises |journal=Molecular Pharmaceutics |volume=4 |issue=6 |pages=807–818 |doi=10.1021/mp070113r |pmid=17999464}}</ref>.
 
Modern delivery formulations overcome these barriers:
* '''Piperine Synergy:''' Co-administration with piperine (from ''Piper nigrum'') increases bioavailability by '''2000%''' by inhibiting hepatic and intestinal glucuronidation<ref name="Anand2007"/>.
* '''Liposomal & Nanoparticulate Curcumin:''' Enhances cellular uptake and extends plasma half-life<ref name="Anand2007"/>.
* '''Phytosome Formulations:''' Complexing curcumin with phospholipids improves oral absorption significantly compared to unformulated extracts.
 
== Safety, Toxicology & Contraindications ==
* '''GRAS Status:''' Curcumin is recognized as GRAS by the US FDA. Clinical trials confirm safety at oral doses up to '''8,000 to 12,000 mg/day'''<ref name="Hewlings2017"/><ref name="Anand2007"/>.
* '''Adverse Effects:''' Mild gastrointestinal upset (nausea, diarrhea, dyspepsia) may occur at very high doses.
* '''Contraindications:'''
** '''Biliary Obstruction:''' Contraindicated in acute bile duct obstruction or gallstones due to its cholagogic effect (stimulation of gallbladder contraction).
** '''Bleeding Disorders:''' May exert mild antiplatelet effects; exercise caution when combining with anticoagulant medications (e.g., Warfarin, Aspirin).
 
== References ==
{{reflist}}
 
== External Links ==
 
[https://cb.imsc.res.in/imppat/phytochemical-detailedpage/IMPHY007574 IMPPAT database]
 
[[Index.php?title=Category:Database of herbs and minerals|Herbs]]

Latest revision as of 05:19, 28 July 2026


Curcuma longa L.

Haridra
Section/Chapter Herb database/Haridra
Botanical name(s) Curcuma longa L.
Family Zingiberaceae
Availability Available
Contributors Team Dravyaguna
Year of publication 2026
Publisher Charak Samhita Research, Training and Skill Development Centre
DOI Awaited

Haridra (Curcuma longa L.), widely known as turmeric, is a perennial rhizomatous herb of the family Zingiberaceae[1]. Celebrated in Ayurvedic medicine for millennia as a potent Vishaghna (antitoxic), Kushthaghna (alleviator of skin diseases), and Pramehahara (antidiabetic) agent, modern pharmacological research has extensively validated its molecular mechanisms[2]. Its therapeutic actions are primarily driven by polyphenolic curcuminoids and volatile sesquiterpenes.[3]

Haridra (Curcuma longa)

Therapeutic Uses

Pandu (Anaemia and diseases related to blood deficiency)), Prameha (Obstinate Urinary disorders including Diabetes mellitus), Vrana (Wound), Vishavikara (Poisons), Kushtha (Obstinate skin diseases), Tvakroga (Skin disorders), Shitapitta (Urticaria), Pinasa (Rhinorrhoea)[4]

Other Varieties / Botanical names

  • Curcuma domestica Valeton
  • Curcuma amada
  • Curcuma aromatica
  • Curcuma angustifolia
  • Curcuma zedoria

Identification Characters

  • Pita – Rhizome of Haridra is yellow and flowers are also yellow coloured.
  • Kanchani – Haridra rhizome is yellow like that of Gold.
  • Nishakhya – Turmeric is also known by names like Nisha, Rajani, etc., owing to its yellow-colored rhizome.
  • Varavarnini – Haridra has an attractive bright yellow color.

Types

  • Bhavaprakasha Nighantu

Mentioned 4 types[5]

  1. Haridra (Curcuma longa)
  2. Amragandhi Haridra (Curcuma amada)
  3. Vana Haridra (Curcuma aromatica)
  4. Daru Haridra (Berberis aristata)
  • Dalhana
  1. Pinda Haridra
  2. Daru Haridra

Synonyms in Bhavaprakasha Nighantu

Haridra, Kanchani, Pita, Nisha, Varavarnini, Krumighna, Haladi, Yoshitpriya, Hattavilasini[6]

Ayurvedic pharmacological properties

Properties
Sr.no. Pharmacological criteria Properties
1 Taste (rasa) Bitter (tikta), Pungent (katu)
2 Potency (veerya) Hot (ushna)
3 Post digestion effect (vipaka) Pungent (katu)
4 Qualities (guna) Rough (ruksha), Light (laghu)
5 Actions (karma) Pacify kapha, vata and pitta. It also expels the pitta (pitta rechak)
6 Therapeutics Varnya (Complexion enhancing), Krimighna (Antimicrobial/Antiparasitic), Pramehahara (Anti-diabetic), Lekhana (Scraping/Anti-lipidemic), Vrana Ropana(Wound healing)

Reference in Charak Samhita and its actions

Herbs and their activities
Sr.no. Reference in Charak Samhita Activity
1 Cha.Sa.Sutra Sthana 2/5 Sirovirechana (Errhine therapy)
2 Cha.Sa.Sutra Sthana 3/3 Siddhatamachurnapradeha(paste) for local application
3 Cha.Sa.Sutra Sthana 4/9(3) Lekhaniyamahakashaya(emaciating)
4 Cha.Sa.Sutra Sthana 4/9(13) Kushthaghnamahakashay (anti – dermatosis)
5 Cha.Sa.Sutra Sthana 4/9(16) Vishaghnamahakashay(anti- toxic)
6 Cha.Sa.Kalpa Sthana 7/16 Preparations of Trivrut

Dose

1-3 gm of the drug in powder form.[7]

Important Formulations

As per A.P.I.[8]

  • Haridra Khanda

Current availability

Available

  • India-

Andhra Pradesh, Tamil Nadu, Orissa, Karnataka, West Bengal, Gujarat, Meghalaya, Maharashtra and Assam.

  • Out of India-

Asian countries (Pakistan, Malaysia, Myanmar, Vietnam, Thailand, Philipines, Japan, Korea & China) Bangladesh, Cambodia, Indonesia, Peru, Madagascar, Australia, Africa, Taiwan, Haiti, Jamaica, Sri Lanka and West Indies

Current researches

Major Bioactive Compounds

The therapeutic efficacy of Curcuma longa is attributed to two primary chemical fractions[1]:

Bioactive Fractions of Curcuma longa
Compound Category Major Constituents Biological Significance
Curcuminoids (~3–6%) Curcumin (Curcumin I), Demethoxycurcumin (Curcumin II), Bisdemethoxycurcumin (Curcumin III) Primary anti-inflammatory, antioxidant, neuroprotective, and antineoplastic agents.
Volatile Essential Oils (~3–7%) α-turmerone, β-turmerone, ar-turmerone, α-atlantone, xanthorrhizol Antimicrobial, neurogenic, anti-fungal, and bioavailability-enhancing properties.

Pharmacological Mechanisms & Scientific Evidence

Anti-inflammatory & Immunomodulatory Efficacy

Curcumin acts as a multi-target anti-inflammatory agent. Unlike synthetic NSAIDs that target specific enzymes, curcumin downregulates key inflammatory cascades[3]:

  • Inhibition of NF-κB Pathway: Suppresses nuclear factor kappa B (NF-κB) activation, inhibiting downstream pro-inflammatory cytokines such as TNF-α, IL-1β, IL-6, and IL-8[2].
  • Enzymatic Downregulation: Directly inhibits cyclooxygenase-2 (COX-2), 5-lipoxygenase (5-LOX), and inducible nitric oxide synthase (iNOS)[3].

Systematic reviews and meta-analyses of randomized controlled trials (RCTs) confirm that turmeric extracts significantly reduce joint pain and stiffness in knee osteoarthritis patients with efficacy comparable to ibuprofen, but with fewer gastrointestinal adverse events[9][10].

Antioxidant & Cytoprotective Activity

Curcumin functions both as a direct free-radical scavenger and as an inducer of endogenous antioxidant defenses[3]:

  • Scavenges reactive oxygen species (ROS) and reactive nitrogen species (RNS).
  • Activates the Nrf2-ARE pathway, upregulating phase II detoxifying enzymes, including superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (GPx), and heme oxygenase-1 (HO-1)[3].

Metabolic & Antidiabetic Actions

Aligning with its classical classification as a Pramehahara herb, Curcuma longa exhibits pronounced metabolic regulation[1]:

  • AMPK Activation: Activates AMPK, suppressing hepatic gluconeogenesis and enhancing glucose uptake in skeletal muscle.
  • Insulin Sensitivity: Improves insulin receptor phosphorylation and downregulates inflammatory markers in adipose tissue that drive insulin resistance.
  • Lipid Modulation: Lowers serum low-density lipoprotein (LDL) cholesterol and triglycerides while raising high-density lipoprotein (HDL) levels through PPAR-γ modulation[3].

Neuroprotective & Cognitive Efficacy

  • Amyloid-β Aggregation Inhibition: Curcumin crosses the blood–brain barrier, directly binding to and destabilizing amyloid-beta plaques in Alzheimer's disease models[11].
  • Neurogenesis Promotion: ar-Turmerone has been shown to induce neural stem cell proliferation and differentiation.
  • BDNF Upregulation: Elevates Brain-Derived Neurotrophic Factor (BDNF) levels, counteracting neurodegenerative processes and stress-induced cognitive decline[11].

Wound Healing & Dermatological Applications

Traditional use as Vrana Ropana (wound healer) is validated by its ability to accelerate tissue repair[1]:

  • Enhances epithelialization, increases collagen deposition, and speeds up tissue remodeling.
  • Exhibits broad-spectrum antibacterial activity against pathogens such as Staphylococcus aureus and Pseudomonas aeruginosa.

Bioavailability & Pharmacokinetic Strategies

Despite high bioactivity in vitro, native curcumin displays poor systemic bioavailability due to low aqueous solubility, poor intestinal absorption, and rapid hepatic metabolism (glucuronidation and sulfation)[12].

Modern delivery formulations overcome these barriers:

  • Piperine Synergy: Co-administration with piperine (from Piper nigrum) increases bioavailability by 2000% by inhibiting hepatic and intestinal glucuronidation[12].
  • Liposomal & Nanoparticulate Curcumin: Enhances cellular uptake and extends plasma half-life[12].
  • Phytosome Formulations: Complexing curcumin with phospholipids improves oral absorption significantly compared to unformulated extracts.

Safety, Toxicology & Contraindications

  • GRAS Status: Curcumin is recognized as GRAS by the US FDA. Clinical trials confirm safety at oral doses up to 8,000 to 12,000 mg/day[3][12].
  • Adverse Effects: Mild gastrointestinal upset (nausea, diarrhea, dyspepsia) may occur at very high doses.
  • Contraindications:
    • Biliary Obstruction: Contraindicated in acute bile duct obstruction or gallstones due to its cholagogic effect (stimulation of gallbladder contraction).
    • Bleeding Disorders: May exert mild antiplatelet effects; exercise caution when combining with anticoagulant medications (e.g., Warfarin, Aspirin).

References

  1. ↑ 1.0 1.1 1.2 1.3 Fuloria, Shivkanya; Mehta, Jyoti; Chandel, Aditi; Sekar, Mahendran; Rani, Nur Najihah Izzati Mat (2022). "A Comprehensive Review on the Therapeutic Potential of Curcuma longa Linn. in Relation to its Major Active Constituent Curcumin". Frontiers in Pharmacology. 13: 820806. PMC 8990857 Freely accessible Check |pmc= value (help). doi:10.3389/fphar.2022.820806. 
  2. ↑ 2.0 2.1 Razavi, Bibi Marjan; Ghasemzadeh Rahbardar, Mahboobeh; Hosseinzadeh, Hossein (2021). "A review of therapeutic potentials of turmeric (Curcuma longa) and its active constituent, curcumin, on inflammatory disorders, pain, and their related patents". Phytotherapy Research. 35 (12): 6489–6513. PMID 34312922 Check |pmid= value (help). doi:10.1002/ptr.7224. 
  3. ↑ 3.0 3.1 3.2 3.3 3.4 3.5 3.6 Hewlings, Susan J.; Kalman, Douglas S. (2017). "Curcumin: A Review of Its Effects on Human Health". Foods. 6 (10): 92. PMC 5664031 Freely accessible. PMID 29065496. doi:10.3390/foods6100092. 
  4. ↑ Anonymous. The Ayurvedic Pharmacopoeia of India. Department of Ayush, Ministry of Health and Family welfare, Govt. of India, New Delhi, Part I. 1986; Volume I:30
  5. ↑ Shri Bhavamishra, Bhavaprakash Nighantu, Haritakyadi Varga, Verse no. 171 Edited by Padmashree Pro. Krushnachandra Chunekar, Reprint Edition, Chaukhambha Bharati Academy, 2015;
  6. ↑ Shri Bhavamishra, Bhavaprakash Nighantu, Haritakyadi Varga, Verse no. 171 Edited by Padmashree Pro. Krushnachandra Chunekar, Reprint Edition, Chaukhambha Bharati Academy, 2015;
  7. ↑ Anonymous. The Ayurvedic Pharmacopoeia of India. Department of Ayush, Ministry of Health and Family welfare, Govt. of India, New Delhi, Part I. 1986; Volume I:30
  8. ↑ Anonymous. The Ayurvedic Pharmacopoeia of India. Department of Ayush, Ministry of Health and Family welfare, Govt. of India, New Delhi, Part I. 1986; Volume I:30
  9. ↑ Daily, James W.; Yang, Mini; Park, Sunmin (2016). "Efficacy of Turmeric Extracts and Curcumin for Alleviating the Symptoms of Joint Arthritis: A Systematic Review and Meta-Analysis of Randomized Clinical Trials". Journal of Medicinal Food. 19 (8): 717–729. PMC 5003001 Freely accessible. PMID 27533649. doi:10.1089/jmf.2016.3705. 
  10. ↑ Zeng, Liuting; Yang, Tiejun; Yang, Kailin; Yu, Ganpeng; Li, Jun (2022). "Efficacy and Safety of Curcumin and Curcuma longa Extract in the Treatment of Arthritis: A Systematic Review and Meta-Analysis of Randomized Controlled Trial". Frontiers in Immunology. 13: 891822. PMC 9353077 Freely accessible Check |pmc= value (help). doi:10.3389/fimmu.2022.891822. 
  11. ↑ 11.0 11.1 Noorafshan, Ali; Ashkani-Esfahani, Soheil (2013). "A Review of Therapeutic Effects of Curcumin". Current Pharmaceutical Design. 19 (11): 2032–2046. PMID 23116311. doi:10.2174/1381612811319110006. 
  12. ↑ 12.0 12.1 12.2 12.3 Anand, Preetha; Kunnumakkara, Ajaikumar B.; Newman, Robert A.; Aggarwal, Bharat B. (2007). "Bioavailability of curcumin: problems and promises". Molecular Pharmaceutics. 4 (6): 807–818. PMID 17999464. doi:10.1021/mp070113r. 

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