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Journal of Nephrology & Therapeutics
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Nephroprotective Agents Used in Unani Medicine-An Evidence Based Approach

Roohi Zaman1*, Anzar Alam2, Shahid Shah Choudhry1 and Mohd Tariq1

1Department of Ilmul Saidla, National Institute of Unani Medicine, Bangalore, India

2Department of Moalajat, National Institute of Unani Medicine, Bangalore, India

*Corresponding Author:
Roohi Zaman
Department of Ilmul Saidla
National Institute of Unani Medicine
Bangalore, India
Tel: +91- 9448227053
E-mail: [email protected]

Received Date: June 16, 2017; Accepted Date: June 26, 2017; Published Date: June 30, 2017

Citation: Zaman R, Alam A, Choudhry SS, M Tariq (2017) Nephroprotective Agents Used in Unani Medicine-An Evidence Based Approach. J Nephrol Ther 7: 296. doi:10.4172/2161-0959.1000296

Copyright: © 2017 Zaman R, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

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Abstract

Kidney is the main excretory organ of the body responsible to excrete the waste, undesirable and toxic substances out of the body. A number of drugs are excreted out of the body through kidney, thus it always remains in direct contact with substances of aversive nature which make it susceptible to toxicity and injury as some substances have inherent noxious effect on kidney such as penicillin and some deposits in tubules that impair its function like gentamicin. This is the main lacuna of Western medicine that it provides inarguably relief to the diseased organ but makes some healthy organ diseased. However, in Unani system of medicine many herbs and their formulations are used to cure kidney disorders since millennia without any side effects. So, in this review an attempt has been made to discuss about commonly used nephroprotective agents of Unani system of medicine.

Keywords

Sodium set point; Dialysate sodium; Plasma sodium

Introduction

According to Avicenna, tonics are described as a drug which moderates the disposition and temperament of an organ to an extent so that it resists the superfluous matter and disorders moving towards it, this action is elicited either by its inherent property or by its moderate temperament which cools what is warm and warms what is cold. Galen explained the action of rose oil on these lines [1]. Muqawwi Gurda wa Masana (Insigurating tonics) are drugs that possesses nephroprotective effect. These drugs act as tonics to kidney and bladder e.g. Amla (Emblica officinalis ), Anar (Punica granatum Linn ), Izkhar (Cymbopogon jwarancusa ), Afsanteen (Artemisia absinthium ), Darchini (Cinnamomum zeylanicum ) and Kuchla (Strychnos nux-vomica Linn) are muqawie masana (tonic to bladder) that is they strengthen the kidneys and bladder [2]. Unani system of medicine possesses many effective and safe diuretics and nephroprotective drugs which are useful in renal disorders. Diuresis is the core and most important function of kidney. Mudirre baul advia (Diuretics) possess very mild warmth (latif hararath ), which is sufficient for the kidneys to absorb the water molecules, these drugs are supportive to quwwathe mumaiza which helps in separating the water molecules [3]. Mudirre baul advia act on the urinary tract at various sites and increase the formation of urine but the mechanism of action of these drugs are different from each other. Some drugs while passing through kidneys act locally by stimulating and increasing the local blood circulation, resulting in local vascular congestion and thereby increasing the volume of urine flow e.g. Shora qalmi (Potassium nitrate), Javakhar (Potassium carbonate/potash), Kabab chini (Piper cubeba ), while other drugs increase the general blood circulation by acting on blood vessels and thereby increase the flow of urine like sharbat, qahva etc.; several drugs act by relieving the retention of urine while some act on the blood vessels of other parts of the body and viscera and transport the fluids for elimination through kidneys while other drugs have the capability to form the appropriate Johare azae bole e.g. Karafs, badiyan, duqoo, tukhme gazar dashti etc. [3]. The leaf juice of Turb or Raphanus sativus is prescribed in difficulty in passing urine as well as in the obstruction of urinary passage. Root juice of the same is used in urinary troubles and seeds are found to be effective in increasing the excretion [4]. The roots of Taraxacum officinale are used in chronic disorders of kidney [4]. The decoction of whole plant Satavar (Asparagus racemosus ) is used in the ailment of kidney. Seeds of Reehan (Ocimum sanctum ) are useful in complaints of urinary system [4]. Sahajna (Moringa olifera ) with a little opium, Giloo (Tinospora cordifolia) are useful in the inflammation of kidney [4]. The seeds of Tukhm Shibbat (Peucedanum graveolens ) commonly known as Dill fruit are reported to be antidysenteric, diuretic, carminative, emmenagogue, galactagogue, and resolvent [5-8]. The seeds of Gazar (Daucus carota ) commonly known as carrot are considered to be nervine tonic, a decoction of the seeds is said to be lithotriptic, diuretic, aphrodisiac, emmenagogue, demulcent and diaphoretic [5-7,9]. The seeds of Nankhah (Trachyspermum ammi ) commonly known as Ajwain have been reported to be carminative, digestive, appetizer, diuretic and emmenagogue [1,5,7,10]. The seeds of Kharpazah (Cucumis melo ) are reported to be diuretic, detergent, demulcent, lithotriptic, further used as cooling medicine in burning micturition and oliguria [6,7,9,11]. The seeds of Khayar (Cucumis sativus ) cures stranguray, thirst; the seeds are used in painful micturition and oliguria and in promoting the passage of calculi [6,7,9,11]. Rhubarb (Rheum emodi ) has been traditionally used as diuretic [12]. “Bisheri Booti.” (Aerva lanata ) is used by the inhabitants in nephrological disorders [13,14]. Following is the list of the herbal drugs which have been documented for possible uses in nephrotoxic disorders in the Unani literature [7] (Table 1).

S. No Name Scientific name Family Part used Action Constituents References
1. Jau (Barley) HordeumvulgareLinn.(Figure 1) Gramineae; Poaceae Dried fruit Detergent Vitamin C, potassium, superoxide dismutase. [7,15-17]
2. Amaltas Cassia fistulaLinn.(Figure 2) Caesalpiniaceae Whole plant Antiseptic, lithortriptic Anthraquinone glycosides, sennosides A, formic acid, butyric acid. [7,15-17]
3. Ananas Ananassativus(Figure 3) Bromeliaceae Fruit Diuretic Proteins, sugar, vitamin C [18]
4. Persiao-sshan Adiantumcapillusveneris(Figure 4) Adiantaceae Fern Diuretic Flavonoid,glucosides, rutin, isoquercetin, kaempferol; terpenoids. [7,16,18,19]
5. Baadiyaan FoeniculumvulgareMill(Figure 5) Umbelliferae; Apiaceae Seed Diuretic,
lithotriptic
Volatile oil, fenchone and methylchavicol, flavonoid. [7,16,19]
6. Behi Pyruscydonia(Figure 6) Rosaceae Fruit Diuretic Sugar, vitamin C, tartaric acid, glycoside. [16,18]
7. Biskhapra Boerhaaviadiffusa(Figure 7) Nyctaginea Whole plant Diuretic Alkaloid trianthemine, nicotinic and ascorbic acid. [15,18]
8. Izkhar Andropogonjwarancusa(Figure 8) Poaceae Whole plant Diuretic,
lithotriptic
Piperitone, borneol, cadinene, camphene, camphor, farnesene, geraniol. [15,16,18]
9. Kasni Cichoriumintybus(Figure 9) Compositae; Asteraceae Whole plant Diuretic, lithotriptic, antiseptic Inulin, sesquierpene lactones, coumarins (chicoriin, esculetin, esculin, umbelliferone and scopoletin). [15,18]
10. Kulthi Dolichosbiflorus(Figure 10) Papilionacea; Fabaceae Seed Lithotriptic Pentosan, vitamin A, vitamin C, phytosterols. [15,16]
11. Kharkhask Tribulusterristeris(Figure 11) Zygophyllaceae Fruit. Diuretic Diosgenin, gitogenin, chlorogenin, ruscogenin, rutin, kaempferol. [15-17]
12. Kaaknaj Physalisalkekengi(Figure 12) Solanaceae Berries Diuretic Flavonoids, including luteolin- glucoside and with steroids. [15-17]
13. TukhmKhayar Cucumissativus(Figure 13) Cucurbitaceae Seed Diuretic,
cooling
Rutin; glucosides including cucurbitaside. [15,18]
14. TukhmKaddu Cucurbitamoschata(Figure 14) Cucurbitaceae Seed Diuretic,
cooling
Glycerides, sterol esters, phosphatidylcholine and phosphatidylinositol. [15,16,18]
15. TukhmKharpazah Cucumismelo(Figure 15) Cucurbitaceae Seed cooling  Volatile oil. [15-17]
16. TukhmGazar Daucuscarota(Figure 16) Umbelliferae; Apiaceae Seed Diuretic Betacarotene, flavones,
Flavonols and glycosides.
[15,18]
17. Karafs Apiumgraveolens(Figure 17) Umbelliferae; Apiaceae. Seed Diuretic,
lithotriptic
Limonene, a-p-dimethyl
styrere, N-pertyl benzene, caryophyllene, a-selinene.
[15,16,18]
18. Turb Rafanussativus(Figure 18) Cruciferae; Brassicaceae Whole plant Diuretic   [18]
19. Revandchini Rheum emodi(Figure 19) Polygonaceae Root Diuretic Emodin, emodinmonomethyl ether,
aloe-emodin, rhein.
[15,16,18]
20. Khas AndropogonmuricatusRetz. (Figure 20) Graminae Whole plant refrigerant, febrifuge, antispasmodic Essential oil, sesquiterpenoids. [15,20]
21. Mocharas BombaxceibaL. Bombacaceae Fruit, root, gum , bark Diuretic. Betasitosterol and its glucosides, lupeol, 7-hydroxycadalene. [15,20]
22. Mazereon ClitoriaternateaLinn.(Figure 21) Papilionacea; Fabaceae Root Diuretic Cinnamic acid, flavonol, glycosides of kaempferol. [15,20]
23. Sapistan CordiadichotomaForst(Figure 22) Boraginaceae Fruit Diuretic Alpha-amyrin and
taxifolin-3, 5- dirhamnoside.
[15,20]
24. Asl-us-soos GlycyrrhizaglabraLinn.(Figure 23) Papilionacea; Fabaceae Root  Diuretic Glycyrrhizin, chalcones, isoflavonoids, coumarins, triterpenoids and sterols, volatile oils. [15,18,20]
25. Gul-e-Surkh Rosa damascenaMill.(Figure 24) Rosaceae Flower Cooling,
refrigerant
Quercetin, kaempferol,cyaniding, essential oil with citronellol, nerol, geraniol, beta-phenylethanol and its glucoside. [15,20]
26. Hammaaz. RumexvesicariusLinn.(Figure 25) Polygonacea Plant, Seed Diuretic Anthraquinoneglucosides, emodin and chrysophanol, vitamin C. [15,20]
27. Baamiyaa Abelmoschusesculentus
(Linn.)Moench.(Figure 26)
Malvaceae Fruit, seed, root Diuretic Quercetin, hyperin (hyperoside),
proanthocyanidins.
[15,20]
28. Ghunchi AbrusprecatoriusLinn.(Figure 27) Papilionacea; Fabaceae Root, leaves Uterine stimulant Abrin, toxalbumin,
indole derivatives, anthocyanins, sterols.
[15,20]
29. Kanghi Abutilon indicumLinn. Sweet (Figure 28) Malvaceae Root, bark
seed
Diuretic Mucilage, tannins, asparagines, gallic acid and sesquiterpenes. [15,20]
30. Aqaaqia Acacia Arabica Wild. var.
IndicaBenth. (Figure 29)
Mimosaceae Bark,
pods
Anti-inflammatory Tannin, galactose; l-arabinose, l-rhamnose and aldobiouronic acid. [15,20]
31. Chirchitaa. AchyranthesasperaLinn. (Figure 30) Amaranthaceae Whole plant Diuretic Alkaloids achyranthine and betaine, tannins and glycosides. [15,20]
32. Piyaaz Allium cepaLinn. (Figure 31) Liliaceae; Alliaceae Bulb Anti-spasmodic, diuretic Volatile oil, flavonoids, sterols, allyl-propyl-disulphide. [15,20]
33. Chaulai AmaranthusspinosusLinn. (Figure 32) Amaranthaceae. Whole plant Spasmolytic,
diuretic
Sterols, alpha-spinasterol and hentriacontane. [15,20]
34. Tabaashir Bambusabambos(L.)Voss. (Figure 33) Gramineae; Poaceae Whole plant Cooling, antiinflamma-tory Cyanogenicglucoside—taxiphyllin. Bamboo-manna contains silicious crystalline substances. [15,20]
35. Dhaak Buteamonosperma(Lam.) Taub. Papilionacea; Fabaceae Whole plant Diuretic Flavonoids, glucosides- butin, butrin, isobutrin and palastrin. [15,20]
36. Bathuaa Chenopodium albumLinn(Figure 34) Chenopodiaceae. Leaves Diuretic Ascaridole, saponins. Cryptomeridiol. [15,20,21]
37. Brahmi Centellaasiatica
(Linn.) (Figure 35)
Umbelliferae; Apiaceae Whole plant Diuretic Brahmine, herpestine, saponins, monnierin, hersaponin. [15,22]
38. Bakaayan MeliaazedarachLinn.(Figure 36) Meliaceae. Leave, flower, fruit Diuretic Bakayanin, lactone, bakalactone, quercitrin, rutin. [15,22]
39. Gilo Tinosporacordifolia(Figure 37) Menispermaceae. Stems Diuretic Berberine; tinosporon, tinosporic acid, tinosporol. [15,22]
40. Ginger ZingiberofficinaleRosc. Zingiberaceae rhizome Diuretic. Essential oil, mono-terpenes, sesquiterpenes, Gingerol and shogaol. [15,22,23]
41. Chal Sandal Safed Santalum album Linn Santalaceae Bark Cooling, diuretic, urinary
antiseptic
Triterpene,alpha-and beta-santalol, alpha-, beta-,epibeta-santalene and alpha-and betacurcumene . [15,23]
42. ZardChob. Curcuma longa Zingiberaceae Rhizome Diuretic Curcumin, mono-desmethoxy-curcumin, ketones, sugars, starch. [15,25]
43. Sataavar Asparagus racemosus Asparagaceae Root Diuretic Saponins—shatavarins I–IV. Shatavarin IV. [15-25]
44. Tulasi Ocimum sanctumLinn Labiatae; Lamiaceae Whole plant antispasmodic eugenol, carvacrol, nerol and eugenolmethyl ether, ursolic acid, apigenin. [15,22,26]
45. Hinaa LawsoniainermisLinn. Lythraceae Leaves antispasmodic Naphthoquinones, flavonoids, luteolin and its 7-O-glucoside. [15,22]
46. Manjeeth RubiacordifoliaLinn Rubiaceae Stem, root, leaves, seed Diuretic, deobstruent Anthraquinones and their glycosides, munjistin, xanthopurpurin, peudopurpurin. [15]
47. Naishakar SaccharumofficinarumLinn Gramineae; Poaceae Juice of stem Cooling, diuretic Sucrose, glucose and fructose, asparagine and glutamine. [15]
48. Miswaak SalvadorapersicaLinn Salvadoraceae. Whole plant Diuretic,
lithotriptic
Monoclinic sulphur, benzyl glucosinolate, salvadourea, m-anisic acid and sitosterol. [15]
49. Mouz Musa paradisiacaLinn.(Figure 38) Musaceae Rhizome, pulp of fruit. Lithotriptic Acylsterylglycoside, sitoindoside IV, pectin, uronic acid. [15]
50. Baobarang EmbeliaribesBurm. Myrsinaceae Root, seed Diuretic Quinines- embelin, rapanone, homoembelin, homorapnone, vilangin [15]

Table 1: Drugs having nephroprotective activities.

nephrology-therapeutics-vulgare

Figure 1: Hordeum vulgare Linn.

nephrology-therapeutics-fistula

Figure 2: Cassia fistula.

nephrology-therapeutics-sativus

Figure 3: Ananas sativus.

nephrology-therapeutics-capillus

Figure 4: Adiantum capillus veneris.

nephrology-therapeutics-vulgare

Figure 5: Foeniculum vulgare.

nephrology-therapeutics-cydonia

Figure 6: Pyrus cydonia.

nephrology-therapeutics-diffusa

Figure 7: Boerhaavia diffusa.

nephrology-therapeutics-jwarancusa

Figure 8: Andropogon jwarancusa.

nephrology-therapeutics-intybus

Figure 9: Cichorium intybus.

nephrology-therapeutics-biflorus

Figure 10: Dolichos biflorus.

nephrology-therapeutics-terristeris

Figure 11: Tribulus terristeris.

nephrology-therapeutics-alkekengi

Figure 12: Physalis alkekengi.

nephrology-therapeutics-sativus

Figure 13: Cucumis sativus.

nephrology-therapeutics-moschata

Figure 14: Cucurbita moschata.

nephrology-therapeutics-melo

Figure 15: Cucumis melo.

nephrology-therapeutics-carota

Figure 16: Daucus carota.

nephrology-therapeutics-graveolens

Figure 17: Apium graveolens seed.

nephrology-therapeutics-sativus

Figure 18: Rafanus sativus.

nephrology-therapeutics-emodi

Figure 19: Rheum emodi.

nephrology-therapeutics-muricatus

Figure 20: Andropogon muricatus Retz.

nephrology-therapeutics-ternatea

Figure 21: Clitoria ternatea Linn.

nephrology-therapeutics-dichotoma

Figure 22: Cordia dichotoma Forst.

nephrology-therapeutics-glabra

Figure 23: Glycyrrhiza glabra.

nephrology-therapeutics-damascena

Figure 24: Rosa damascena Mill.

nephrology-therapeutics-linn

Figure 25: Rumex vesicarius Linn.

nephrology-therapeutics-esculentus

Figure 26: wildlmoschus esculentus.

nephrology-therapeutics-precatorius

Figure 27: Abrus precatorius Linn.

nephrology-therapeutics-indicum

Figure 28: Abutilon indicum Linn.

nephrology-therapeutics-wild

Figure 29: Acacia arbambosca wild.

nephrology-therapeutics-aspera

Figure 30: Achyranthes aspera.

nephrology-therapeutics-cepa

Figure 31: Allium cepa.

nephrology-therapeutics-spinosus

Figure 32: Amaranthus spinosus Linn.

nephrology-therapeutics-bambos

Figure 33: Bambusa bambos.

nephrology-therapeutics-album

Figure 34: Chenopodium album Linn.

nephrology-therapeutics-asiatica

Figure 35: Centella asiatica.

nephrology-therapeutics-azedarach

Figure 36: Melia azedarach Linn.

nephrology-therapeutics-cordifolia

Figure 37: Tinospora cordifolia.

nephrology-therapeutics-paradisiaca

Figure 38: Musa paradisiaca.

Recent Pharmacological Studies

Cucumis sativus

In a study renal calculi were induced in the rats by 0.75% V/V ethylene glycol treatment. Systematic study was conducted to see the influence of the extract of the fruits of Cucumis sativus when used as preventive and curative regimens for treatment in urolithiasis in albino rats. Various biochemical estimations in serum, urine, kidney homogenates and histological examination of the kidneys showed that the test extract has beneficial action in urolithiasis when given in preventive and curative regimens [27].

Cichorium intybus

Noori et al. [28] evaluated the role of herbal plant Cichorium intybus on Cisplatin – induced toxicity. 24 male Albino Wistar rats were randomly divided into 4 groups: Group I was termed as untreated control; Group II was Cisplatin control and received 3 mg/kg b.w.; i.p.; Group III received C. intybus ethanolic extract at a dose of 500 mg/kg b.w. orally for 10 consecutive days and Group IV is Cisplatin + C. intybus pretreated group. C. intybus is given 30 minutes prior to Cisplatin. Cisplatin – induced electrolytes disturbances is indicated by increase Intra - erythrocyte sodium content, decreased plasma magnesium, calcium and Intra-erythrocyte Na+-K+-ATPase which implicates the renal toxicity. At a dose of 500 mg/kg b.w. of C. intybus pretreatment showed partial counter action on the electrolytes imbalances and Na+-K+-ATPase activity. Results reported the protective role of Cichorium Intybus in Cisplatin induced nephrotoxicity.

Cucumis melo

A scientific study was carried out by Fahmiya et al. to evaluate the nephroprotective activity of methanolic extract of Cucumis melo (MECM) seed kernel in gentamicin-induced nephrotoxicity. The ME-CM was administrated orally (190 mg/kg/d) for 8 days. Gentamicin was administrated at the dose of 100 mg/kg daily in neck region subcutaneously from 4th to 8th day. Gentamicin (alone) treated group showed increased levels of blood urea nitrogen and serum creatinine, which were significantly retrieved in group pretreated with ME-CM. The study revealed that the level of superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (GPx) and reduced glutathione (GSH) were increased with decrease in malondialdehyde (MDA) content in ME-CM pretreated group when compared with gentamicin alone treated group. The histopathological analysis also showed the protective nature of ME-CM in gentamicin-induced renal damage [29].

Angelica radix

A poly herbal formulation was studied for its protective effect on mice administered with 3 mg/kg of Cisplatin. Among the ingredients of the formulation Angelica radix was more effective and it showed strongest protective effect against the toxicity, the effectiveness of Angelica radix was found to be due to its constituent L- malate which was isolated and tested for nephroprotective activity [30].

Cordyceps sinesis

The simultaneous administration of the plant Cordyceps sinesis with gentamicin protects the proximal tubular cells from gentamicin toxicity. The use of Cordyceps sinesis after establishment of Kanamycin induce acute renal failure reduced the recovery time significantly compared to control group [31].

Boerhavvia diffusa

Results are reported on the clinical, experimental and immunological studies on (Boerhavvia diffusa ) the observations reveal equivalent diuretic effect of frusemide, Biskhapra increases serum protein level and decreases urinary protein excretion in patients of nephritic syndrome. Increase was also noted in the level of immunoglobulin and lower immune complexes after one month of medication in patients of nephritic syndrome. Clinically Biskhapra was proved to be useful and safe drug in patients of nephritic syndrome [32].

Tripterygium wilfordii and Radix salivae

Tripterygium wilfordii polyglucoside 20 mg/kg combined with Radix salivae mithiorrhizae 6-5 gm/kg for treating purpuric nephritis (group A), compared with the control group of using Tripterygium wilfordii poly glucoside treatment only (group B). The average time of oedema disappearing and blood pressure resuming to normal range in 8 days in group A which were much better than those in group B, it indicates the effect of group A was much better [33].

Tribulus terresteris

Simultaneous administration of Gokhroo (Tribulus terresteris) 200 mg/kg/day/orally and gentamicin to female rats decreased the gentamicin induced nephrotoxicity in both structural and functional terms. The effects were comparable to that of Verapamil [34]. Methanolic extract of Icacina tricantha tuber was found to be effective in carbon tetra chloride induced nephrotoxicity. The rats treated only with carbon tetra chloride lost weight, but those with carbon tetra chloride and extract gained weight. Histopathological examination of the kidney revealed complete protection against carbon tetra chloride induced nephrotoxicity [35].

Echinacea pallid

The hydro alcohol standardized extract of Echinacea pallida given to mice in association with the intraperitoneal administration of cisplatin exhibited protective effect expressed by a diminished loss and fast recovery of the animal’s body weight, pretreatment with Echinacea pallida also decreased cisplatin nephrotoxicity estimated from the level of kidney homogenate oxygen consumption [36].

Withania somnifera

The protective effect of Asgandh (Withania somnifera ) on Cadmium induced toxicity in mice kidney has been studied, aqueous extract of 40 mg/0.1 ml concentration was prepared from the dried roots of asgandh mice were fed with Cadmium chloride along with Asgandh extract and asgandh extract alone (1.14 gm/kg body weight ) for 20 days. Results based on lipid peroxidation indicate that asgandh is capable of reducing toxicity caused by cadmium [37].

Apium graveolens

The dried ripe fruits of Tukhm Karafs (Apium graveolens ) the seeds are reported to be stimulant, aromatic, emmenagogue and diuretic, Beekh Karafs (the roots of karafs) are also reported to be appetizer, carminative, lithotriptic, diuretic, emmenagogue, deobstruent, frequently used in dropsy, anuria, kidney and vesical calculi and amenorrhoea [1,7-9].

Panax ginseng

The protective effect of two natural antioxidants ginsenoside Rb-I and quercetin isolated from Panax ginseng on acute nephrosis induced by Puromycin Amino nucleoside has been reported. The protective action of Rb-I and quercetin were evidenced by their ability to suppress the formation of phosphatidylcholine hydro peroxide in the plasma, liver and kidney. Another beneficial effect noted from these natural antioxidants was increased glutathione peroxidase activity in the blood. The severity of Puromycin Amino nucleoside induced acute nephrosis was found to be ameliorated by the anti-oxidative action of these two flavonoids [38].

Geranium humbergii

Effects of Geranin tannin extracted from the herb Geranium humbergii on Puromycin Amino nucleoside nephrosis were studied in rats. The urine protein excretion in female rats (140-160 gm) receiving puromycin amino nucleoside on 7th day, reached its maximum after injection of puromycin amino nucleoside injection on 14th day, but in animals treated intramuscularly with geranin 10 mg/kg body weight the urinary protein was reduced approximately 35%. The increase in serum cholesterol and lipid peroxide produced by puromycin amino nucleoside were also suppressed by geranin, observation by electron microscopy revealed that the degree of abnormality in glomerular epithelial cells was lower in rats treated with geranin after the puromycin amino nucleoside injection than in the rats treated with the puromycin amino nucleoside alone [39].

Other studies

In a study two formulations NR- AG I containing (Crateava nurvala , Dolichos biflorus , Tribulus terristeris, Shilagi ), and NRAG 2 containing (Crateava nurvala , Boerrhavia diffusa , Sacharum officinarum , Butea frondosa ) were administered in male albino rats along with Gentamicin, biomedical studies indicated the gentamicin (80mg/kg sc/day) causes significant renal damage which was prevented by both the formulations [40]. Two Unani compound formulations Jawarish Zarooni sada and Banadequl Buzoor have been reported to possess nephroprotective activity. The formulation was found to decrease the serum urea and serum creatinine levels significantly; this was increased by the administration of Gentamicin [41-44].

Conclusion

It is obvious from present review that there are numerous herbal drugs which are being used by Unani physicians in the form of single as well as compound formulations since centuries. These drugs are safe, effective and free from adverse effects. Some studies have been conducted on these drugs but they lack extensive pharmacological and clinical studies. Hence it is suggested that relevant studies may be carried out on these natural resources for the establishment of new, safe and effective nephroprotective agents. This review provides new vistas for researcher and scientist.

Acknowledgements

The author would like to acknowledge students of Ilmul Saidla for providing literature on nephroprotective drugs in USM and all the authors whose references have been cited.

References

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