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01.12.2017 | Research article | Ausgabe 1/2017 Open Access

BMC Complementary Medicine and Therapies 1/2017

Ethnopharmacological survey of medicinal plants practiced by traditional healers and herbalists for treatment of some urological diseases in the West Bank/Palestine

Zeitschrift:
BMC Complementary Medicine and Therapies > Ausgabe 1/2017
Autoren:
Nidal Amin Jaradat, Abdel Naser Zaid, Rowa Al-Ramahi, Malik A. Alqub, Fatima Hussein, Zakaria Hamdan, Mahmoud Mustafa, Mohammad Qneibi, Iyad Ali
Abbreviations
BPH
Benign Prostate Hyperplasia
CV
Choice Value
FC
frequency of citation
Fic
Factor of Informant’s Consensus
IRB
Institutional Review Board
ns
Total Number of Species
Nt
Number of Taxa
Nur
is the number of use
UV
Use Value
UVs
Use Values of the Species

Background

Traditional herbal medicine is an important part of all nations’ history, therefore, an establishment of the original uses and local names of plants has significant potential societal benefits. Unfortunately, recently with the fast growth in the technical aspects of the world, loss of customs and various ethnic cultures, some of this information may disappear [ 13]. Since the beginning of history, human beings have used plants as medicine, and Ancient Arabic Medicine was influenced by medicinal practices in India, Persia, Mesopotamia, Spain, Rome and Greece [ 4].
Palestine had high ecosystem diversity due to its geographical location between Africa, Asia, and Europe and due to different climatic, zoogeographic, and phytogeographic zones, this creates great biological diversity [ 5, 6]. In the West Bank regions of Palestine, traditional medicine is widely used especially in rural areas; this may be due to the political conflicts in this country and the cost of conventional drugs [ 79]. Hundreds of shrubs, trees, and herbal species used as antipyretics, analgesics, diuretics, laxatives, antimicrobial, antidiarrheal, emetics and cardio-tonics in the West Bank area of Palestine [ 10]. These plants are available and cheap because they grow wildly in nature or cultivated [ 11, 12].
The rich variety of approaches employed by herbalists and traditional healers to treat disorders and diseases of the urinary tract is indicative of the depth and breadth of indigenous medicine practiced among these traditional healers and herbalists in the twentieth century [ 12].
The Kidney is the organ that has numerous physiological functions. Its role is to maintain the homeostatic balance of body fluids and electrolytes. Kidneys are vital regulators of glucose metabolism, blood pressure, and erythropoiesis. Patients with kidney diseases have significant morbidity and mortality [ 13, 14].
There are many urologic diseases and disorders. According to the American Urological Association Foundation, the most commonly identified urological diseases include hyperplasia, benign prostate hyperplasia (BPH), urinary tract infections, urethral and kidney stones, enuresis (urinary incontinence) and renal failure [ 15].
According to the Palestinian Central Bureau of Statistics and Ministry of Health annual report in 2014, the visits to the outpatient urological clinics of governmental hospitals in Palestine were 49,275 visits per year. Moreover, about 4% of death causes in Palestine were due to renal failure and other kidney diseases. In the USA, about 26 million American adults have kidney disease, and it is considered the 9th leading cause of death in the United States. Kidney diseases kill more people than breast or prostate cancer yearly [ 1618].
For these reasons, this study aimed to collect data from herbalists and traditional healers about the folk herbal remedies, which have been utilized for treatment of urological diseases in the West Bank regions of Palestine and to verify their pharmacological and toxicological effects through literature review.

Methods

Study areas

West Bank is an important territory of Palestine. The climate in the West Bank is mostly Mediterranean, slightly colder in mountains and hills compared with the shorelines in the western lands. In the east, it includes the desert and the shoreline of the Dead Sea, both with dry and hot climate. The shores of the Dead Sea are about 430 m below sea level, and it is considered the Earth’s lowest elevation on the land. Accordingly, all these factors explain the enormous diversity of the West Bank flora. This diversity is directly reflected in the distribution and diversification of agricultural patterns, from the rain-fed farming in the mountains (Jerusalem, Ramallah, Hebron, Nablus, Bethlehem, Salfeit) to an irrigated agriculture as in Jenin, Tobas, Toulkarem, Qalqilya and Jericho lands [ 19, 20].

Selection of informants

An ethnopharmacological survey (questionnaire-based cross-sectional descriptive study) was used. Areas visited included all regions of the West Bank/Palestine, including Nablus, Jenin, Tubas, Toulkarem, Salfeit, Qalqilya, Ramallah, Jericho, Jerusalem, Bethlehem and Hebron (Fig. 1) between March and April 2016. The Institutional Review Board (IRB) at An-Najah National University approved the study protocol and the informed consent forms (IRB number was 134/February/2016). The study was conducted in accordance with the requirements of the declarations of Helsinki (World Medical Association 2008), the current Good Clinical Practice (GCP) Guidelines (EME 1997) and the International Conference on Harmonization (ICH1996) Guidelines, and a written informed consent was obtained from the participants.
The objectives of the study were explained to the participants, they were not offered any incentives, and they were able to withdraw from this study at any time.
A total of 150 traditional healers and herbalists were interviewed in this study. 144 participants accepted to answer the questionnaire (102 males and 42 females), where 26 of them were from Hebron (16 males and 10 females), 18 from Jenin (12 males and 6 females), 17 from Jericho (14 males and 3 females), 16 Nablus and Qalqilya (12 males and 4 females from Nablus) (10 males and 6 females from Qalqilya), 14 from Toulkarem (12 males and 2 females), 11 from Ramallah (9 males and 2 females), 9 from Jerusalem (7 males and 2 females), 6 from Tubas and Jerusalem (4 males and 2 females from Tubas) and (3 males and 3 females from Jerusalem), and 5 from Salfeit (3 males and 2 females), from 11 regions of the West Bank Area of Palestine. They were from different ages (22–91 years) and were selected with the help of local people. The selected healers were well known in the community due to their long practice of providing services related to traditional health care. All the participants (i.e., 144) were asked to provide information on the plant(s) that they use for treating the urinary tract diseases, parts of the plants used such as leaves, roots, flowers, stems and seeds, methods of preparation (e.g decoction, juice, infusion, powder), and methods of administration (either orally or topically). In addition to their opinion about the advantages of herbal remedies.
The study was a face to face questionnaire. This method has proven to be a very practical and useful option of data collection. The survey was anonymous, pretested by a pilot study for reliability, validity and clarity of the questionnaire. Meanwhile, the duration of the interviews ranged from 20 to 60 min, with one visit per interviewee in each case. Interviews were conducted in Arabic, the local language of the informants and the plant names were given in Arabic and later translated into English and Latin using reference books as well as about 50% of these Arabic names were linked to an actual right scientific name [ 2123].

Plant identification

The collected plant samples from these informants were stored in the pharmacognosy laboratory at the Pharmacy Department, An-Najah National University in appropriate glassware and individual herbarium wooden frames. They were identified later by a team of teaching assistants and technicians under the supervision of the pharmacognosist (Dr. Nidal Jaradat), all fifty-seven plants’ species that were mentioned by informants, were identified by using photographs from reference books and dried herbarium specimens [ 24, 25].

Data analysis

The frequency of citation (FC) for all plants species in this study were calculated by using the following formula:
FC = (Number of times a particular species was mentioned by herbalists and traditional healers/a total number of occasions that all species were mentioned) × 100 [ 24].
To evaluate the relative importance of plants in indigenous healthcare systems, the use value (UV) is used as a micro-statistical tool, which reflects people interaction with specific plants as the best treatments for urinary tract diseases. It is a quantitative method that can be used to prove the relative importance of species known locally. It can be calculated according to the following equation:
$$ \mathrm{UV}=\frac{\sum U}{n} $$
Where UV is the use value of a species; U is the number of citations per species; n is the number of informants [ 25].
Factor of informant’s consensus (F ic) was calculated according to the following equation:
$$ {F}_{ic}=\frac{Nur- Nt}{Nur-1} $$
Where Nur is the number of use citations in urinary tract disease category, and Nt is the number of taxa used for the treatment of these diseases.
This factor is employed to indicate how homogenous the information is. F ic value is close to 0 if plants are chosen randomly, or if informants do not exchange information about their use. High values of Fic (close to 1) occur when there is a clear selection criterion in the community and if information is frequently exchanged between informants [ 26].
The Choice Value (CV) method is a valuable assessment tool to measure related plant species for treatment of urinary tract diseases [ 27].
The CV is calculated as in the following equation:
$$ CV\kern0.5em species=\frac{Pcs}{Sc}\times 100 $$
Pcs: percent of informants that cited certain plant species for the treatment of urinary tract disease.
Sc: is the total number of species mentioned for treatment of disease by all informants. Choice values are ranked from 0 to 100 with 100 indicating complete preference and fewer alternatives.
The significance of medicinal plant families was assessed using the Family Use Values (FUV), which was calculated according to the following equation:
$$ FUV=\frac{UVs}{(ns)} $$
where, UVs = use values of the taxa, and ns = total number of species within each family which were used for the treatment of urological diseases in the West Bank area of Palestine [ 28].

Review study

A literature review was conducted by a systematic search of the scientific literature, which was published before January 2017, by using Medline, Pubmed, Scopus and Google Scholar electronic searching machines. It cited most of the plants which had FC higher than 50% and their applications in the treatment of urological disease. The investigators practiced the following Keywords: folk uses for urinary tract, ethnopharmacological uses urinary tract, traditional methods of urinary tract, evidence-based uses, toxicities and side effects for individual plant names.

Results

Socio-demographic factors

As shown in Table 1, most of the respondents who worked in this field were males. Most of them had high educational levels. In fact, 30.56% of the interviewed were secondary school graduates. The majority of respondents were from areas of the West Bank that mostly depended on agriculture or grazing as a mean of income (Hebron, Jenin, and Jericho).
Table 1
Sociodemographic factors related to the respondents
Variable
Number of herbalists and traditional healers ( N = 144)
Gender
 Male
102
 Female
42
Education level
 No formal education
32
 Elementary
14
 Secondary school
28
 High secondary school
44
 Undergraduate
22
 Graduate (higher education)
4
Residency
 Bethlehem
6
 Hebron
26
 Jenin
18
 Jericho
17
 Jerusalem
9
 Nablus
16
 Qalqilya
16
 Ramallah
11
 Salfeit
5
 Tubas
6
 Toulkarem
14
Age (mean ± SD) years
54.8 ± 17.9
Experience (mean ± SD) years
29.1 ± 10.9
Regarding training and knowledge acquisition; (i) 77% of the respondents acquired their skills through observing their family members, (ii) 21% gained their skills through coursework and apprenticeship, (iii) and about 2% claimed they had a divine gift for the healing of certain diseases, which means that most of them had this knowledge through their families’ historical healing knowledge skill.
Data collection of ethnopharmacological plants.
The fruits were the most commonly used parts of plants for the treatment of urinary tract diseases followed by seeds and roots. The modes and methods of preparation varied considerably from one healer to another; however, all of these methods were administered orally as described by the interviewees and shown in Table 2.
Table 2
The medicinal plants used for the treatment of some urinary tract diseases, the plant parts used, use values, choice value, frequency of citation, modes and methods of preparation
Scientific names
Arabic local names
English common names
Family
Voucher specimen codes
Urinary tract diseases
Part used and mode of preparation
Method of preparation
# Informant 144
FC, %
UV
CV
Paronychia argentea Lam.
رجل الحمام
Chickweed, Algerian tea
Caryophyllaceae
Pharm-PCT-1793
Kidney stones
Entire plant/Boil about 100 g of the plant in 100 ml water. 30 ml of this decoction is to be given orally before each meal.
Decoction
140
97.22
0.97
1.71
Curcuma longa L.
كركم
Turmeric
Zingiberaceae
Pharm-PCT-2709
Enuresis
Roots/Steep 150 g of the roots in 200 ml water for two hours. This infusion is to be given after each meal.
Infusion
135
93.75
0.94
1.64
Plantago ovata Forssk.
لسان الحمل البيضوي
Blond Psyllium
Plantaginaceae
Pharm-PCT-1891
Kidney stones
Seeds/About 50 g of dried and ground seeds are to be given orally once daily.
Powder
134
93.06
0.93
1.63
Portulaca oleracea L.
فرفحينه
Common Purslane
Portulacaceae
Pharm-PCT-1935
Renal failure
Entire plant/10 drops of the fresh plant juice are to be given twice daily.
Juice
134
93.06
0.93
1.63
Punica granatum L.
رمان
Pomegranate
Lythraceae
Pharm-PCT-2721
Kidney stones
Fruits/300 ml of Pomegranate juice obtained from the fruits is to be given five times a day.
Juice
133
92.36
0.92
1.62
Juglans regia L.
جوز
Walnuts
Juglandaceae
Pharm-PCT-2714
Prostatic enlargement
Bark/Boil 100 g from the ground bark in 300 ml water for 30 min. 50 ml of this decoction is to be given twice daily.
Decoction
132
91.67
0.92
1.61
Capsella bursa-pastoris (L.) Medik.
کیس الراعي
Shepherd’s-Purse
Brassicaceae
Pharm-PCT-497
Urinary tract infection
Fruits/ Boil about 100 g from the ground fruits in 300 ml water. Give 100 ml three times a day after meals.
Decoction
132
91.67
0.92
1.61
Quercus infectoria subsp. veneris (A.Kern.) Meikle
بلوطحلبي
Aleppo Oak
Fagaceae
Pharm-PCT-1977
Prostatic enlargement
Entire plant/Boil about 50 g of the any plant part in 200 ml water. 50 ml of this decoction is to be given four times a day with meals.
Decoction
119
82.64
0.83
1.45
Crocus sativus L.
زعفران
Saffron
Iridaceae
Pharm-PCT-2733
Enuresis
Flowers/Steep 40 g of the flowers in 100 ml boiled water for 8 h. 15 ml from this infusion is to be given two times a day
Infusion
118
81.94
0.82
1.44
Hibiscus sabdariffa L.
كركديه
Roselle
Malvaceae
Pharm-PCT-2752
Urinary tract infection
Flower/Boil about 150 g of the plant in 100 ml water. 40 ml of this decoction is to be given orally before each meal.
Decoction
112
77.78
0.78
1.36
Ammi visnaga (L.) Lam.
الخله المصريه
Khella
Apiaceae
Pharm-PCT-139
Urinary tract infection
Fruits/Boil about 250 g of the plant in 500 ml water. 100 ml of this decoction is to be given orally three to five times a day.
Decoction
102
70.83
0.71
1.24
Ammi majus L.
الخله الشيطانيه
Bishop’s Flower, Bishop’s weed
Apiaceae
Pharm-PCT-138
Urinary tract infection
Fruits/Boil about 30 g of fruits in 100 ml water for 5 min. This decoction is to be given three times a day after meals.
Decoction
98
68.06
0.68
1.19
Taraxacum syriacum Boiss.
هندباء
Silkweed
Compositae
Pharm-PCT-2396
Kidney stones
Roots/Boil about 300 g of the plant in 500 ml water. 100 ml of this decoction is to be given orally before each meal.
Decoction
95
65.97
0.66
1.16
Sambucus ebulus L .
البيلسان
Danewort
Adoxaceae
Pharm-PCT-2135
Enuresis, prostatic enlargement.
Leaves/Steep 200 g of the powdered leaves in 500 ml boiled water for 12 h. About 100 ml from this infusion is to be given three times daily.
Infusion
92
63.89
0.64
1.12
Morus alba L.
توت ابيض
White Mulberry
Moraceae
Pharm-PCT-2750
Kidney stones
Fruits/150 ml of fresh juice are to be given orally every two hours.
Juice
91
63.19
0.63
1.11
Zea mays L.
ذره
Maize
Poaceae
Pharm-PCT-2747
Prostatic enlargement, urinary tract infections
Flower stigmas (corn silk)
Infusion
72
50.00
0.58
1.02
Foeniculum vulgare Mill.
شومر
Fennel
Apiaceae
Pharm-PCT-1041
Kidney stones, urinary tract infection
Fruits/ Boil about 50 g of the fruits in 50 ml water. 25 ml of this decoction is to be given three times a day.
Decoction
78
54.17
0.54
0.95
Daucus carota L.
جزر بري
Wild carrot
Apiaceae
Pharm-PCT-829
Urinary tract infection
Fruits/ Boil about 150 g of the powder in 600 ml water. About 150 ml of this decoction is to be given three times a day.
Decoction
69
47.92
0.48
0.84
Buddleja coriacea Remy
عفار
Butterfly bush
Scrophulariaceae
Pharm-PCT-2746
Enuresis
Flowers/Boil about 20 g of the flowers in 200 ml water. About 50 ml of this decoction is to be given once daily.
Infusion
67
46.53
0.47
0.82
Persea americana Mill.
افوكادو
Avocado
Lauraceae
Pharm-PCT-2740
Enuresis
Leaves/Boil about 50 g of leaves in 150 ml water for 5 min. This decoction is to be given three times a day after meals.
Decoction
66
45.83
0.46
0.80
Cucurbita pepo L.
قرع
Pumpkin
Cucurbitaceae
Pharm-PCT-2762
Prostatic enlargement
Seeds/ Boil about 100 g of the seeds in 600 ml water. About 50 ml of this decoction is to be given three times a day.
Decoction
66
45.83
0.46
0.80
Equisetum ramosissimum Desf.
كنباث أفرع
Branched Horsetail
Equisetaceae
Pharm-PCT-915
Renal failure
Entire plant/ Boil about 50 g of the powder in 600 ml water. About 100 ml of this decoction is to be given three times a day.
Decoction
66
45.83
0.46
0.80
Ferula communis L.
كلخ
Common Giant Fennel
Apiaceae
Pharm-PCT-1016
Kidney stones
Fruits/Steep 50 g of the plant in 150 ml boiled water for 12 h. 10 ml from this infusion is to be given two times a day
Infusion
65
45.14
0.45
0.79
Rosa canina L.
ورد السياج
Rose hips, Dog-rose
Rosaceae
Pharm-PCT-2052
Urinary tract infection
Fruits/Boil about 70 g of leaves in 150 ml water for 15 min. This decoction is to be given three times a day after meals.
Decoction
65
45.14
0.45
0.79
Ficus sycomorus L.
جميز
Fig-Mulberry
Moraceae
Pharm-PCT-1030
Urinary tract infection, renal failure
Fruits/Extract 100 ml of juice to be given orally five times a day.
Juice
63
43.75
0.44
0.77
Petroselinum crispum (Mill.) Fuss
بقدونس
Garden Parsley
Apiaceae
Pharm-PCT-2739
Prostatic enlargement, urinary tract infections, kidney stones
Fruits/Boil about 100 g from the powdered fruits in 600 ml water. About 150 ml from this decoction is to be given 4–5 times daily.
Decoction
44
30.56
0.43
0.76
Acacia senegal (L.) Willd.
الصمغ العربي
Arabic Gum
Leguminosae
Pharm-PCT-2755
Kidney stones
Gum/About 20 g of gum are to be given orally twice daily with a cup of milk.
Powder
61
42.36
0.42
0.74
Raphanus raphanistrum L.
فجل بري
Radish
Brassicaceae
Pharm-PCT-2007
Kidney stones
Seeds/ Boil about 250 g of the powder in 750 ml water. About 150 ml of this decoction is to be given three times a day.
Decoction
59
40.97
0.41
0.72
Olea europaea L.
زيتون
Olive
Oleaceae
Pharm-PCT-1664
Renal failure
Fruits/Three table spoons of Olive oil is to be given orally twice a day.
Oil
57
39.58
0.40
0.69
Apium graveolens L.
كرفس
Celery
Apiaceae
Pharm-PCT-204
Prostatic enlargement
Entire plant/Ten drops of Celery entire plant juice are to be given orally three times a day.
Juice
56
38.89
0.39
0.68
Astracantha gummifera (Labill.) Podlech
الكثيراء
Tragacanth
Leguminosae
Pharm-PCT-2754
Kidney stones
Gum/About 50 g of gum are to be given orally three times daily with 2 cups of water.
Powder
55
38.19
0.38
0.67
Urtica pilulifera L.
القريص الشائك
Roman Nettle
Urticaceae
Pharm-PCT-2561
Kidney stones, Urinary tract infections
Roots/Boil about 20 g of the powder in 100 ml water. About 30 ml of this decoction is to be given three times a day.
Decoction
55
38.19
0.38
0.67
Arctostaphylos uva-ursi (L.) Spreng.
عنب الدب
Bearberry
Ericaceae
Pharm-PCT-2705
Urinary tract infection
Leaves/Boil about 90 g from the dried leaves in 400 ml water. About 50 ml from this decoction is to be given 3–5 times daily.
Decoction
55
38.19
0.38
0.67
Cinnamomum verum J.Presl
قرفه
Cinnamon
Lauraceae
Pharm-PCT-2707
Prostatic enlargement
Bark/ Boil about 80 g from the dried powdered plant in 400 ml water. About 50 ml from this decoction is to be given 3–5 times daily.
Decoction
54
37.50
0.38
0.66
Angelica archangelica L.
حشيشة الملاك
Wild Celery
Apiaceae
Pharm-PCT-2758
Kidney stones
Roots/Boil about 100 g from the dried powdered plant in 500 ml water. About 50 ml from this decoction is to be given 4–5 times daily.
Decoction
51
35.42
0.35
0.62
Lolium temulentum L.
زوان مسكر
Darnel
Poaceae
Pharm-PCT-1453
Enuresis
Seeds/Boil about 200 g from the dried powdered plant in 500 ml water. About 100 ml from this decoction is to be given twice daily.
Decoction
44
30.56
0.31
0.54
Withania somnifera (L.) Dunal
سموه
Ashwagandha
Solanaceae
Pharm-PCT-2678
Kidney stones
Roots/Boil about 50 g of the powder in 100 ml water. About 50 ml of this decoction is to be given three times a day after meals.
Decoction
43
29.86
0.30
0.52
Origanum jordanicum Danin & Kunne
زعتر
Thyme
Lamiaceae
Pharm-PCT-1729
Kidney stones
Leaves/Boil about 60 g of leaves in 200 ml water for 5 min. This decoction is to be given three times a day after meals.
Decoction
42
29.17
0.29
0.51
Barbarea vulgaris R.Br.
جرجير بري
Rocketcress
Brassicaceae
Pharm-PCT-2757
Urinary tract infection
Leaves/Steep 40 g of the powdered leaves in 100 ml water for12 hours. About 30 ml from this infusion is to be given three times daily.
Infusion
42
29.17
0.29
0.51
Jateorhiza palmata (Lam.) Miers
ساق الحمام
Calumba
Menispermaceae
Pharm-PCT-2753
Urinary infections
Flowers/Steep 200 g of the powdered flowers in 800 ml water for 8 h. About 50 ml from this infusion is to be given three times daily.
Infusion
40
27.78
0.28
0.49
Viola kitaibeliana Schult.
بنفسج
Dwarf Pansy
Violaceae
Pharm-PCT-2656
Kidney stones
Seeds/About 10 drops of seeds oil is to be given orally twice daily.
Oil
35
24.31
0.24
0.43
Glycyrrhiza glabra L.
عرق السوس
Licorice
Leguminosae
Pharm-PCT-1128
Enuresis
Roots/Steep 50 g of the powdered roots in 300 ml water for 12 h. About 100 ml from this infusion is to be given four times daily.
Infusion
34
23.61
0.24
0.41
Ocimum basilicum L.
ريحان
Basil
Lamiaceae
Pharm-PCT-2717
Kidney stones
Leaves/Steep100 grams of the powdered leaves in 400 ml water for 6 h. About 50 ml from this infusion is to be given five times daily.
Infusion
32
22.22
0.22
0.39
Hypericum perforatum L.
سانت جون
St John’s Wort
Hypericaceae
Pharm-PCT-2734
Kidney stones
Flowers Boil about 30 g of plant in 100 ml water for 25 min. This decoction is to be given three times a day after meals.
Decoction
32
22.22
0.22
0.39
Fragaria vesca L.
فراوله
Strawberry
Rosaceae
Pharm-PCT-2763
Urinary tract infection
Fruits/ Extract 150 ml of juice to be given orally four times a day.
Juice
29
20.14
0.20
0.35
Cyperus longus L.
بردي
Sweet Cyperus
Cyperaceae
Pharm-PCT-808
Renal failure
Entire plant/ Boil about 10 g from the dried powdered plant in 100 ml water. About 20 ml from this decoction is to be given 5–6 times daily.
Decoction
22
15.28
0.15
0.27
Citrullus colocynthis (L.) Schrad.
حنظل
Bitter apple
Cucurbitaceae
Pharm-PCT-628
Kidney stones
Seed/ Steep 40 g of the grounded seeds in 100 ml water for 12 h. 25 ml from this infusion is to be given three times a day
Infusion
21
14.58
0.15
0.26
Brassica nigra (L.) K.Koch
خردل اسود
Black mustard
Brassicaceae
Pharm-PCT-408
Kidney stones
Seeds/ Steep 50 g of the powder in 300 ml water for four hours. 100 ml of this infusion is to be given 4–5 times a day.
Infusion
18
12.50
0.13
0.22
Helichrysum sanguineum (L.) Kostel.
دم المسيح
Red everlasting
Compositae
Pharm-PCT-1170
Renal failure
Entire plant/ Steep 100 g of the powdered plant in 100 ml water for 8 h. About 30 ml from this infusion is to be given three times a day.
Infusion
17
11.81
0.12
0.21
Lupinus angustifolius L.
الترمس ضيق الأوراق
Blue lupin
Leguminosae
Pharm-PCT-1477
Urinary tract infection
Roots/ Boil 50 g of the roots in 500 ml water for 30 min. 100 ml of this decoction is to be given twice a day.
Decoction
16
11.11
0.11
0.19
Phaseolus vulgaris L.
فاصولياء
Common Bean
Leguminosae
Pharm-PCT-2748
Renal failure
Seeds/ Boil about 40 g of the seeds in 500 ml water. 100 ml of this decoction is to be given three times a day with meals.
Decoction
13
9.03
0.09
0.16
Vitex agnus-castus L.
كف مريم
Chaste Tree
Lamiaceae
Pharm-PCT-2663
Renal failure
Fruits/ Extract 200 ml of juice to be given orally five times a day.
Juice
13
9.03
0.09
0.16
Prunus avium (L.) L.
كرز حلو
Wild cherry
Rosaceae
Pharm-PCT-2751
Kidney stones
Fruits/ About 100 ml of fresh Wild Cherry juice are to be given orally four times a day.
Juice
8
5.56
0.06
0.10
Phragmites australis (Cav.) Trin. ex Steud.
قصب بري
Common Reed
Poaceae
Pharm-PCT-1843
Renal failure
Roots/ Boil about 200 g of the roots in 500 ml water. 100 ml of this decoction is to be given four times a day.
Decoction
8
5.56
0.06
0.10
Malvella sherardiana (L.) Jaub. & Spach
خبيزة بريه
Field Mallow
Malvaceae
Pharm-PCT-1508
Renal failure
Leaves/ Steep 20 g of the powdered leaves in 150 ml water for 2–3 h. About 50 ml from this infusion is to be given three times daily.
Infusion
7
4.86
0.05
0.09
Capsicum annuum L.
الفليفلة الشجيرية
Chili pepper
Solanaceae
Pharm-PCT-2729
Urinary tract infections
Fruits/ About 10 g of ground dried fruits are to be given orally twice daily with a cup of water.
Powder
7
4.86
0.05
0.09
Carica papaya L.
ببايا
Papaya
Caricaceae
Pharm-PCT-2761
Kidney stones
Seeds/ About 10 g of ground seeds are to be given orally twice daily.
Powder
5
3.47
0.03
0.06
In the case of kidney stones, the highest use values were for Paronychia Argentina, Plantago ovata, Punica granatum, Taraxacum syriacum, Morus alba and Foeniculum vulgare, respectively. In the case of urinary tract infections, the highest use values were for Capsella bursa-pastoris, Ammi visnaga, and Ammi majus, respectively. Besides, the maximum use value in case of renal failure was for Portulaca oleracea while the highest use values in the case of enuresis were for Curcuma longa and Crocus sativus, respectively. In the case of prostatic enlargement, the highest use values were for Juglans regia, Quercus infectoria, Sambucus ebulus and Zea mays, respectively. Furthermore, the frequencies of citation for these plants species were more than 50%.
The factor of informant’s consensus (F ic) was calculated for medicinal plants used for the treatment of various urinary tract diseases (i.e., 0.99 for Benign Prostate Hyperplasia (BPH) and enuresis and 0.98 in a case of kidney stones disease, urinary tract infection and renal failure). The calculated F ic value obtained for the reported diseases indicated the degree of shared knowledge among informants for the treatment of these urinary tract diseases by certain medicinal plants as shown in Table 3.
Table 3
Factor of informant’s consensus (F ic) for the studied urinary tract diseases
Urinary tract disease categories
Nt
Nur
F ic
Kidney stones
22
1202
0.98
Urinary infection
17
912
0.98
Prostatic enlargement
8
544
0.99
Enuresis
7
496
0.99
Renal failure
10
370
0.98
Where; Nur is the number of use citations in urinary tract disease category, Nt is the number of taxa used for treatment of these diseases.
Ethnopharmacological information obtained from the study area on medicinal plants used in the treatment of various urinary tract diseases revealed that 57 plant species belonging to 30 families. All of the Latin scientific names have been checked with www.​theplantlist.​org on March 10, 2016.
As presented in Table 4, the family use value was the highest for Apiaceae family, which was 26.67, where the most common plant parts used were fruits, seeds, and roots, respectively as shown in Fig. 2.
Table 4
Medicinal plant families used for treatment of urinary tract diseases and the family use value (30 families)
Number
Families
Number of taxa
Family use value
1.
Apiaceae
8
26.67
2.
Lamiaceae
5
16.67
3.
Leguminosae
5
16.67
4.
Brassicaceae
4
13.33
5.
Poaceae
3
10.00
6.
Rosaceae
3
10.00
7.
Compositae
2
6.67
8.
Cucurbitaceae
2
6.67
9.
Malvaceae
2
6.67
10.
Moraceae
2
6.67
11.
Solanaceae
2
6.67
12.
Other families with one citation
19
63.33

Pharmaceutical preparations

The methods of preparation were decoctions, infusions, juice, oil, and powder. Decoctions and infusions were the most frequently used methods of preparation as presented in Fig. 3.
The most common urinary tract disease treated with herbal remedies was kidney stones followed by urinary tract infections, renal failure, Benign Prostate Hyperplasia (BPH) and enuresis as reported in Fig. 4.

Literature review

For all the listed above plants, a literature review was investigated, where it represented their ethnopharmacological use against urinary tract diseases regionally, internationally and globally. Also, in-vitro as well as in-vivo studies and their toxic or adverse reactions were reviewed for plants which had F C value more than 50%, using electronic databases and the results were summarized in Table 5.
Table 5
Summary of published ethnopharmacology, in vivo, in vitro studies, side effects and toxicity of the most frequently recommended plants for treatment of urinary tract diseases
Urinary tract diseases
Plant species
Ethnopharmacological usage for treatment of various urinary tract diseases and country with reference source
In-vitro and in-vivo studies on plants used for treatment of various urinary tract diseases with reference source
Side effects and toxicity of plants used for treatment of various urinary tract diseases with reference source
Kidney stones
Paronychia argentea
Turkey [ 30] Jordan [ 26, 31, 32], Palestine [ 33, 34], Spain [ 35], Egypt [ 36], and Algeria [ 37].
In-vitro study on wistar rats it prevented and reduced the growth of kidney stones in experimental calcium oxalate nephrolithiasis [ 38].
In-vitro study proved that P. argentea extract had low hemolytic effect [ 39] as well as the butanolic extract of P. argentea can prevent or slow down the oxidative damage induced by organophosphorus pesticide, chloropyriphos ethyl in rats [ 38].
Plantago ovata
No references found about its folk usage for treatment of kidney stones.
In vitro study on rats proved that intake of a P. ovata husk-supplemented diet prevented endothelial dysfunction [ 40].
Arabinoxylan from Plantago ovata husks had been proven its safety scientifically on rats and rabbits [ 41].
Punica granatum
India and North Africa [ 4245].
On male rats experiment proved that the administration of P. granatum induced urolithiatic rats resulted in removal of deposition of calcium oxalate crystals into kidneys and improving renal histology [ 46].
In another experiment on rats showed the protective effect of p. granatum in the ethylene glycol induced crystal depositions in kidneys [ 47].
No references
Taraxacum syriacum
No references
No references
No references
Morus alba
Bulgaria and Italy [ 48].
Ethanlic leaves extract showed significant anti-nephrolithiatic effect in wistar rats [ 49].
No reference
Foeniculum vulgare
United Kingdom [ 50], Palestine [ 51], Italy [ 52], Turkey [ 53], Bosnia [ 54], Serbia [ 55], Iran [ 10, 56, 57], Pakistan [ 58], India [ 59], and Bolivia [ 60].
Herbal beverage of F. vulgare inhibited of calcium oxalate renal crystals formation in rats [ 61].
In most toxicity experiments carried out on F. vulgare, no signs of toxicity were observed [ 62].
Urinary tract infections
Capsella bursa-pastoris
In Jordan, [ 32] Turkey [ 63], Bulgaria [ 64], India [ 65], and Uzbekistan [ 66].
The crude extract of C. bursa-pastoris showed antibacterial activity against five Gram-positive and four Gram-negative bacteria.
Among them Escherichia coli which is the mainly cause of urinary tract infections [ 67, 68].
C. bursa-pastoris extracts have been reported to exhibit low toxicity in mice, furthermore the plant is contraindicated in case of pregnancy [ 69], but used as an edible vegetable, eaten raw or cooked in some countries [ 70, 71].
Ammi visnaga
Italy, Tunisia [ 72], Palestine [ 51], Lybia [ 73], Sudan [ 74], Egypt [ 75], Pakistan [ 76], and Peru [ 77].
A. visnaga has antifungal, antibacterial and antiviral activities due the presence of khellin and visnagin [ 78].
Overdose or longer use of A. visnaga can lead to queasiness, dizziness, loss of appetite, headache, sleep disorders and it should be avoided during pregnancy [ 79].
Ammi majus
Italy, [ 80] Jordan [ 81] and Morocco [ 82].
The extract of A. majus has shown good inhibition in all the bacterial strains used specially Escherichia coli [ 83].
In vitro study on Geese showed severe liver damage in these birds which fed A. majus and exposed to sunlight [ 84].
Renal failure
Portulaca oleracea
India [ 85, 86] and Sri Lanka [ 87].
The ethanolic extract of the plant aerial parts showed significant anti-inflammatory and analgesic after intraperitoneal and topical applications but not oral administration when compared with the synthetic drug, diclofenac sodium as the active control [ 88].
Also its aqueous extract attenuates diabetic nephropathy through inhibition of renal fibrosis and inflammation in mice [ 89]. Although aqueous and ethanolic extracts of P. oleracea showed potential activity against cisplatin induced acute renal toxicity was studied in rats [ 90].
Due to the huge a mounts of oxalic acid and nitrate in the plant, a high consumption is harmful [ 91, 92].
Enuresis
Curcuma longa
No reference
No reference
No reference
Crocus sativus
No references
No references
Histological studies indicated that saffron has not any toxic effect on liver [ 93], heart and spleen on mice and rats [ 94, 95].
Benign prostate hyperplasia (BPH)
Juglans regia
Palestine [ 96].
No reference
Juglone compound when isolated from all plant parts has multiple effects on cells such as the reduction of p53 protein levels, induction of DNA damage, inhibition of transcription and induction of cell death [ 97].
Quercus infectoria
No reference
Contains quercetin which is at 500 mg 2 times daily gave significant symptomatic improvement to most patients, particularly those with negative expressed prostatic secretions cultures [ 98].
The aqueous extract of Q. infectoria has significant toxic effect in Wistar rats for over 180 consecutive days of consumption [ 99].
Sambucus ebulus
Turkey [ 100], and Bosnia [ 101].
The plant extract produced significant inhibition of edema induced by carrageenan at all doses when compared to the control rats group [ 102].
The plant extract showed severe toxicity (in particular severe liver abscess) in all mice at all tested doses [ 102].
Zea mays
Algeria, [ 103] Guatemala [ 104], Serbia, [ 105] Cameroon [ 106], Peru [ 107], Australia [ 108], Brazil [ 109], and Turkey [ 110].
Crude ethanolic extract of corn silk (stigma of Zea mays) exhibited a significant activity in anti-inflammatory herbal drugs for TNF (tumor factor-alpha) antagonistic activity. [ 111].
No adverse effects have been noticed with the consumption of corn silk which support the safety of corn silk for humans [ 112].

Discussion

In the West Bank area of Palestine, the folk medicine has been trusted and highly appreciated, and many patients go to herbalists or traditional herbal healers to get benefit from this field. In fact, herbal medicine is considered the most used complementary and alternative medicine and this part of complementary and alternative medicines are widely used among patients suffering from urinary tract diseases throughout the world. Most practitioners are males, and this was confirmed in this study; some of them have university degrees.
All over the world, the prevalence of kidney diseases varies significantly from country to country. Epidemiological data on the occurrence of kidney stone was about 12% of global population with a recurrence rate of 70–80% in males and 47–60% in females [ 29].
According to the use value results, the highest use values for medicinal plants, which were utilized for the treatment of kidney stones, were for Paronychia argentea, Plantago ovata, Punica granatum, Taraxacum syriacum, Morus alba, and Foeniculum vulgare. The highest use values for medicinal plants used for treatment of urinary tract infections were for Capsella bursa-pastoris, Ammi visnaga, and Ammi majus, while the highest use value for plants used for treatment of renal failure was for Portulaca oleracea as well as the highest use values for medicinal plants used for treatment of enuresis were for Curcuma longa and Crocus sativus. Furthermore the maximum use values for plants used for treatment of benign prostate hyperplasia were for Juglans regia, Quercus infectoria, Sambucus ebulus and Zea mays.
Table 5 showed that Paronychia argentea, Punica granatum, Morus alba, and Foeniculum vulgare were used in the folk medicine in many countries for the treatment of kidney stones. The evidence-based effects for this disease were documented for Paronychia argentea, Plantago ovata, Punica granatum, Morus alba, and Foeniculum vulgare, whereas Taraxacum syriacum lacked any evidence-based use for treatment of kidney stone. Moreover, specific attention must be considered during consumption of Paronychia argentea extract, which has a low hemolytic effect.
Regarding the most cited plants which were used for the treatment of urinary tract infections, all of them applied in the folk medicine in many countries and their antibacterial effect approved scientifically, but all of them may have harmful effects due to their adverse reactions and toxicological effect. Mean while the most cited plant for treatment of renal failure was Portulaca oleracea which is used in India and Sri Lanka for the treatment of this disease also, but unfortunately, this plant contains oxalic acid and nitrate. Therefore, high consumption of this plant is harmful to patients suffering from renal failure. Moreover, the most cited plants for treatment of enuresis were Curcuma longa and Crocus sativus which was not mentioned before in any folk or evidence-based medicines for the treatment of this disease and their toxicological effects were not reported.
The most cited plants which were used for the treatment of benign prostate hyperplasia (prostatic enlargement) were; Juglans regia, Sambucus ebulus and Zea mays. These plants had evidence-based studies to be useful for the treatment of this disease, but it is important to keep in mind that Juglans regia, Quercus infectoria and, Sambucus ebulus are harmful as mentioned in the literature review and cannot be used for treatment of any disease.
Over all, there are quite a few phytopharmaceuticals which can be used effectively for the treatment of the urinary tract diseases in the pharmaceutical markets. For that further phytochemical and pharmacological screenings is required to investigate new drugs from the mentioned plants in this study, especially those which have high use values and can be used safely.

Conclusion

The traditional herbal medicine has gradually become more popular, and the need for promoting awareness is perceived. This study showed that traditional herbal medicine is playing a significant role for treatment of urological diseases in the West Bank of Palestine. Based on that, all the plants in this study with high use value should have further phytochemical and pharmacological screenings to test for safety and efficacy. Despite the fact that many of the herbals are currently used by local and international herbalists and traditional healers, serious attention must be given toward many of these products, since they have serious adverse effects and toxicities. Curcuma longa and Crocus sativus were the most cited plants for treatment of enuresis. These plants could be of interest for additional research since they have not been mentioned before in any folk or evidence-based medicines for the treatment of this disease and their toxicological effects were not reported. Also, it is important to keep in mind that Juglans regia, Quercus infectoria and, Sambucus ebulus are harmful and cannot be used for the treatment of any disease.

Acknowledgements

We would like to thank all the herbalists and herbal practitioner healers in the West Bank/ Palestine and all participants in the study.

Authors’ contributions

NJ conceived and designed the study, analyzed the data obtained. This paper was drafted by ANZ, RAl-R, MAA, FH, ZH, MM, MQ and IA. All authors read and approved the final manuscript.

Funding

None.

Availability of data and materials

Data are all contained within the article.

Competing interests

The authors declare that they have no financial and/or non-financial competing interests.

Consent for publication

All authors gave their consent for the publication of the manuscript for Nidal Jaradat to be the corresponding author.

Ethics approval and consent to participate

The study aims, protocols and the informed consent forms were approved by the Institutional Review Board (IRB) at An-Najah National University (IRB archived number 134/February/2016). All participants agreed to their involvement in our study in our manuscript.

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