|Year : 2014 | Volume
| Issue : 1 | Page : 25-28
Inefficiency of ethanolic extract of Glycyrrhiza glabra and Ziziphus mauritiana roots on androgenic alopecia
Sukirti Upadhyay1, AK Ghosh1, Vijender Singh2
1 School of Pharmaceutical Sciences, IFTM University, Moradabad, Uttar Pradesh, India
2 BBS Institute of Pharmaceutical and Allied Sciences, Greater Noida, Uttar Pradesh, India
|Date of Web Publication||16-Jul-2014|
School of Pharmaceutical Sciences, IFTM University, Moradabad 244 001, Uttar Pradesh
Source of Support: None, Conflict of Interest: None
| Abstract|| |
Aim: To study the air growth promoting effect of roots of G. glabra and Z. mauritiana in androgen (testosterone) induced male pattern baldness (androgenic alopecia). Materials and Methods: Animals were divided into four groups and they were attempted to made alopecic by treatment with testosterone for 3 weeks. Group 1 (control), 2 (standard), 3 and 4 animals (test) were also treated topically with vehicle, finasteride and ethanolic extract of Z. mauritiana roots and G. glabra roots respectively. Animals were observed for signs of alopecia and after treatment period one animal from each group was euthanized randomly and the skin sections from the treated area was examined for changes in follicular morphology. Statistical Analysis: Statistical analysis of data was carried out by one-way ANOVA. Using Instat version 2.1 software. Results: The Group 1, 3 and 4 animals develop alopecia and their skin section also shows bulbous and miniaturized hair follicles and prominent sebaceous gland while Group 2 (standard antiandrogenic drug finasteride treated) animals does not develop alopecia and skin samples also shows well-formed follicles and normal sebaceous gland. Conclusion: This experiments shows incapability of ethanolic extract of Z. mauritiana and G. glabra combating androgenic alopecia.
Keywords: Glycyrrhiza , hair growth, Ziziphus
|How to cite this article:|
Upadhyay S, Ghosh A K, Singh V. Inefficiency of ethanolic extract of Glycyrrhiza glabra and Ziziphus mauritiana roots on androgenic alopecia. J Pharm Negative Results 2014;5:25-8
|How to cite this URL:|
Upadhyay S, Ghosh A K, Singh V. Inefficiency of ethanolic extract of Glycyrrhiza glabra and Ziziphus mauritiana roots on androgenic alopecia. J Pharm Negative Results [serial online] 2014 [cited 2019 Nov 12];5:25-8. Available from: http://www.pnrjournal.com/text.asp?2014/5/1/25/136787
| Introduction|| |
Ziziphus mauritiana also known as ber, chinee apple, Chinese date, cottony jujube, Indian cherry, Indian jujube is a tropical fruit tree species. It is a spiny, evergreen shrub or small tree rise up to 15 m high, with trunk 40 cm or more in diameter; spreading crown; stipular spines and many drooping branches. It is found in tropical region from Africa to Afghanistan and China, Australia and in some pacific regions. It is a rich source of macro cyclic peptides alkaloids lupane and triterpenes, cyclopeptides of Ziziphus species showed pharmacological properties, including sedative, analgesic, antibacterial, antifungal and antiplasmodial activity etc., The 13-membered macrocyclic alkaloids are isolated from this plant. These included the 4 (14)-membered ring class: Mauritine C, amphibine F and frangufoline the 5 (14)-membered ring type: Mauritines A and B. It also contains protein, carotene, and vitamin C. It cures vitiated pitta, kapha, obesity, fever, burning sensations, cough, wound, skin disease, ulcers, stomatitis, diarrhea, sexual weakness, and general debility.  It is recommended for hair growth promotion in traditional medicine. 
Glycyrrhiza glabra, also known as Yasthi-Madhu in Sanskrit, Jethi-Madhu in Hindi, Jashtimadhuin Bengali (all Indian languages), and licorice in English, is cultivated in Jammu, Kashmir, Punjab and Sub-Himalayan tracts of India. It is a hardy herb or undershurb, attaining a height of 1.8 m. Its roots are thick, having many branches with red or lemon color outside and yellowish or pale inside. It is called Keshya (hair growth promoter) in traditional texts of Ayurveda.  The decoction of the root is a good wash for falling and graying hair.  There is no literature evidence about Z. mauritiana to promote hair growth or combat androgenic alopecia but Ziziphus jujube is proved as hair growth promoter  and in our previous studies petroleum ether extract of G. glabra also recommended for hair growth and androgenic alopecia. , Hence, here experiments were performed in ethanolic extract of Z. mauritiana and G. glabra for observing their effect in androgenic alopecia.
| Materials and methods|| |
Roots of G. glabra and Z. mauritiana were collected in the month of February from Jim Corbett National Park, Ramnagar, Uttrakhand, UP. The samples were authenticated by Dr. D. V. Amla, Scientist D, National Botanical Research Institute, Lucknow UP. A voucher sample no NBRI-SOP-202 was submitted there for further references.
Preparation of extract
Both extract were prepared from defatted roots macerated with ethyl alcohol for 1-day separately and then extract was concentrated under reduced pressure. The yield was 15% w/w for Z. mauritiana and 20% w/w for G. glabra.
Male Wistar albino rats, weighing 100-150 g, age 5-6 months were used for hair growth studies. The rats were placed in polypropylene cages and kept in standard animal house conditions in 12 h light and 12 h dark cycle, fed with standard pellet diet ad libitum and allowed free access water. The permission for animal work was provided by Animal Ethical Committee of the IFTM University, Moradabad, UP, India.
Testosterone test solution
Marketed preparation of testosterone Testovirion Depot manufactured by German Remedies Pvt Ltd, Mumbai-400018 was diluted up to 5 mL with water for injection. This was able to produce the concentration of 5 mg/mL and 0.1 mL was injected at the thigh of animal (s.c.) route in 0.1 mL dose daily.
The 2% standard finasteride solution was prepared in vehicle (ethanol: Propylene glycol: Water, 8:1:1). 0.4 mL was applied daily to the animals on the dorsal side.
The 2% extracts solutions were prepared in vehicle (ethanol: Propylene glycol: Water, 8:1:1).
The extract and finasteride solution were applied to animals up to 10% concentration and animals were observed for signs of toxicity for 7 days. ,
Grouping and treatment of animals
The rats were divided into four groups of six rats each. All groups of animals were treated with testosterone solution injection in 0.1 mL (s.c.) for continuous 21 days to induce androgenetic alopecia and to evaluate combating effect of finasteride and extracts, back or dorsal massage of 0.4 mL vehicle, 2% finasteride solution and 2% extracts solutions were administered to Groups 1, 2, 3 and 4 animals respectively daily for 21 days. Animal was observed for 3 weeks and then one rat from each group was selected randomly and sacrificed on the 21th day of drug treatment.  Skin biopsies were taken from the affected area and fixed in 10% formalin buffer. Tissues were embedded in paraffin wax and sectioned into uniform thickness of 10 μm with microtome and were stained with hematoxylin and eosin. From the sections, the number of hair follicles per millimeter of the skin and the percentage ratio of different cyclic phases, like anagen and telogen, of hair follicles were determined. 
Data are reported as mean ± standard error of the mean statistical analysis of data was carried out by one-way ANOVA comparing all test groups versus control followed by Dunnet's test using Instat version 2.1 software. A P < 0.05 considered as statistical significant.
| Results|| |
The animals of different groups were observed for hair loss and skin sections were examined for various parameters as shown in [Table 1], [Figure 1] and [Figure 2].
|Figure 1: Skin section of animal treated with ethanolic extract of Z. mauritiana|
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|Figure 2: Skin section of animals treated with ethanolic extract of G.glabra|
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|Table 1: Hair growth population of 100 hair follicles in (anagen and telogen stage) and follicle density after various treatments |
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| Discussion|| |
In the animal study of 3 weeks the first, third and fourth group animals observation shows that the alopecia start to visualize from day 15 on the dorsal side of skin, but the Group 2 animals did not showed any signs of alopecia, ethanolic extract of Z. mauritiana [Figure 1] and G. glabra roots treated group [Figure 2] showed development of alopecia or male pattern baldness, which was progressed from cranial to caudal region and in histopathological studies of the skin sections the bulbous appearance of follicles and very prominent sebaceous gland confirmed androgenic alopecia and it was compared significantly to control group. , While Group 2 animals (finasteride treated) remain unaffected [Table 1]. Hence, the results of ethanolic extract of drugs do not support traditional belief about roots of Z. mauritiana and G. glabra in treatment or reversal of androgenic alopecia. 
The mechanism of hair growth restoration in induced androgenic alopecia is 5 alpha reductase inhibition and finasteride is known 5 alpha reductase inhibitor so Group 2 animals do not develop alopecia.  The ethanolic extract of these herbs may not possess 5 alpha reductase inhibitory activity as alopecia is clearly developed. No major controversies arised by this study, as it is reported in literature that petroleum ether extract of G. glabra and volatile oil of Z. jujube possess anti androgenic alopecia activity. But chemical constituents were not isolated and identified in above studies. As different solvent use for extraction have different phytoconstituents. Petroleum ether extract of G. glabra possess mainly nonpolar phytoconstituents. They supports the traditional claim but the polar compounds present in ethanolic extract of both drugs do not possess hair growth promoting or restoring property.
However, a number of investigators have shown that polar compound like flavonoids possess hair growth promoting activity by strengthening the capillary wall of the smaller blood vessels supplying hair follicles; improve blood circulation to nourish the hair follicles and thereby promoting hair growth. ,, However, the polar compound or flavonoids present in ethanolic extract of Z. mauritiana and G. glabra donot possess hair growth promoting activity in testosterone induced or androgenic alopecia.
As the ethanolic extract of G. glabra and Z. mauritiana do not possess anti androgenic activity. They may further investigate in future for their androgenic of fertility effect in males.
| Conclusion|| |
Conclusively in present study ethanolic extract of Z. mauritiana and G. glabra was found ineffective in combating effect of testosterone in causing androgenic alopecia.
| Acknowledgment|| |
One of the authors S. Upadhyay is thankful to Prof. R. Somvanshi, Head, Department of Pathology, IVRI, Izatnagar, (UP) for help in histopathological studies. This work is carried out as a part of corresponding author's PhD dissertation at GBTU, Lucknow (UP).
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[Figure 1], [Figure 2]