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146 Hartwig Schulz
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royal botanical gardens of that time pre­sented an enormous variety of native and exotic plants, which were cultivated there for their colorfulness, richness of form, de­lightful fragrance, and, last but not least, for their culinary and medicinal benefits (Scott,
1904). The Andalusian philosopher and bot­anist Ibn Bajjah also went into more detail about the physiology of the various plant species in his book Kitāb al-Nabāt (Book of Plants). For the first time, he also described the individual influence of different local en
­vironmental conditions (desert areas, moun­tains, river banks, sea coast, and different types of soil) (Samso etal., 1996).
Without any doubt, one of the most famous Muslim herbalists was Abu Dāwud Sulaymān ben Hassan, who is also men­tioned in literature as “Ibn Juljul al-Anda­lusī”. He was born in Córdoba in  943 and was widely respected at a very early stage for his extensive knowledge and his special abil­ity to determine the individual geographical origin of plants (Amar et al., 2014). Beside botany, Ibn Juljul also studied medicine to­gether with a group of Hellenists chaired by Hasdāy ibn Shaprūt, a Jewish physician and vizier of Caliph Abd al-Rahmān III, and later became the personal physician of Caliph Hishām II ( 976–1009) (Calvo, 2008). He is also known as a famous author of the two books T   abaqāt al-Attibbāʾwa ’l-hukamāʾ (Gen- erations of Physicians and Wise Men), which is the oldest existing summary of the history of medicine in Arabic, and Ishāq ibn Hunayn’s
Tarikh al-Atibbāʾ (History of Physicians by Ishāq ibn Hunayn, A History of Medicine with 57 Biographies from Nine Generations).
Thirty-one of them concern Asian authors, while the others refer to African and Anda­lusian scholars. For his pharmacopoeia, Ibn Juljul used several Eastern (Hippocrates, Galen, Dioscorides) and Western sources (Orosius, Isidore) and also described the chronological limits of Latin influence on medicine in Andalusia. This history contains brief sections on each period, beginning with the legendary fathers of medicine, but is probably of greatest interest because of Ibn Juljul’s account of his predecessors and contemporaries in Andalusia. In this con­text, he refers in particular to the intensive
contacts that existed between the Eastern Caliphate and Andalusia, as well as to stu­dents who undertook extended journeys in search of knowledge and education (Amar etal., 2014).
Building on his studies of Dioscorides, Ibn Juljul wrote a supplement he called maqālah, containing 60 articles that focused specifically on “those drugs that Dioscorides had not men­tioned” (Johnstone, 1999) (Fig. 3.5).
This work largely follows the familiar scheme of earlier authors in giving refer­ences to the appearance, action, and nature of each plant. However, in addition, their “temperament (mizādj)”, their “power”, and their “effect on a particular spirit or organ” are also described in detail (Ghāfiqī et al., 1932–1940). Ibn Juljul also mentions the respective origin of the plants, as far as they were known to him: 28 came from India, two from Yemen, two others from Egypt, and one from the island of Ceylon. Only a few plant samples were collected in Andalusia (Johnstone, 1999). For the samples from Andalusia, Ibn Juljul sometimes added the name of that person who had first used the plant or told him something about it. For ex­ample, there is a detailed account of the col­lectors of monk’s pepper (Vitex agnus-castus). But he also documents some personal de­scriptions of the collected Syrian rhubarb (Rheum ribes): “I inquired about ‘ribas’ from some people in the Far East, who told me that it is a sour-tasting vegetable with fleshy leaves resembling those of succulents.” An­other trader who was familiar with the use of “ribas” informed him “that the plant had extremely sour roots” (Savage-Smith, 2012). It is particularly noteworthy that Ibn Juljul respected the ancient knowledge of the Greeks, but did not simply translate their books; rather, he added valuable contribu­tions to the practical knowledge and individ­ual use of medicinal plants, and for this reason in particular was highly respected by contemporary and later scholars and phys­icians (Johnstone, 1999).
Several Muslim travelers also made im­portant contributions to a more comprehen­sive and at the same time systematic development of botanical knowledge in Spain by providing their individual knowledge of
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Fig. 3.5. Physician preparing an elixir (folio from a manuscript of De materia medica written by Dioscorides (c.AD 40–90)). (By Marie-Lan Nguyen (2011), Public Domain, https://commons.wikimedia.
org/w/index.php?curid=17769084.)
nature and especially of the origins of vari­ous plant species. For example, the phys­ician al-Ghāfiqi from Córdoba (12th century ) collected numerous plants on his travels
through Spain and North Africa and named them in Arabic, Latin, and Berber. Abu Zakariyā ibn al-‘Awwām, another botanist and farmer who lived at the same time, wrote a treatise
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on agriculture (Kitāb al-Filāha) that is the first outstanding medieval work on this sub­ject. He consulted both Greek and Arab spe­cialists, but drew most of his knowledge from his own studies of agriculture in Spain itself. He described a total of 585 different plant species and also went into more detail on the cultivation of about 50 types of fruit (Hitti, 1937) (Fig. 3.6).
The Moroccan traveler and botanist Ibn Bat   ttutah (14th century ) described in his travelogues (in Arabic: Rihlah) the various fruit varieties he discovered in Isphahan (apricots, quinces, grapes, and watermelons) and, in addition, the fruit trees he got to know on his travels through India, such as mango and sweet orange. In Malabar he discovered cinnamon (C. verum) and in the
Fig. 3.6. A scene of agricultural work with a man digging herbaceous plants with a spade, among cultivated trees, from a medieval Arabic manuscript from Al-Andalus (Islamic Spain). (http://www.
muslimheritage.com/article/agriculture-muslim-civilisation-green-revolution-pre-modern-times, Public
Domain, https://commons.wikimedia.org/w/index.php?curid=57929949.)
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Maldives and the island of Java he could see other exotic species such as oil palm (Elaeis guineensis), lemon (Citrus × limon), camphor (C. camphora), storax (Styrax officinalis), and clove (Syzygium aromaticum) trees (Defrem- ery and Sanguinetti, 1929). In the second half of the Abbasid Caliphate and during the Western Caliphate, Muslims also contributed in a special way to increasing the knowledge of organic and inorganic remedies as well as to improve the preparation of pharmaceutical drugs. During this period, there was also a greater separation between the medical and pharmaceutical professions for the first time, which was mainly due to the described ad
­vances in materia medica and in the know­ledge of how to produce phytomedicines. Thus, the large hospitals in Iraq already had a pharmacist and a well-equipped pharmacy where the medicinal products were compiled and the doctors’ prescriptions prepared and filled according to individual instructions. Medicines and spices were also stored in these pharmacies for the first time (Elgood,
1951). Among the Baghdadi scholars, the Christian physician Māsawaih al-Mārdini from Mārdin in Mesopotamia (10th century ) deserves special mention. He lived first in Baghdad and then later in Cairo under the rule of Caliph al-H ākim (Wiet etal ., 1975). He achieved fame in later monastic medicine through the pharmacopoeia he wrote, which dealt in particular with more complex mix­tures of medicines as well as specific medi­cines for certain diseases (Wiet etal., 1975).
Abu al-Abbas al-Ashbili (Abul-Abbas of Seville) known as Ibn Rumiyyah was the first scientist to succeed in extending botan­ical knowledge, which until then had focused mainly on the agricultural production of food plants, to medicinal plants and their practical use in pharmacy (Scott, 1904). However, there was still no clear dividing line between food and medicines, as many plant products were clearly assigned to both categories (Johnstone, 1999).
Islamic botany also gradually developed an advanced methodology and new ap­proach, opening the way to the current state of science. This can be seen, for example, in the treatise of Ali ben Abbās al-Madjusi known as Haly Abbas (10th century ),
who proposed different dosages for the treatment of individual diseases and the use of differently composed medicines in separ­ate chapters, thus providing a very complete and well-organized account of medicine of that time (Levey, 1997).
Very often, Muslim scholars were even far ahead of their Greek predecessors in the use of medicinal plants, so that the Muslim list of medicines contained a large number of remedies unknown to the Greeks (Wiet et al., 1975). Thus, Ibn Juljul was already aware of the fact that medicine and botany had evolved since the days of Dioscorides and that the newly identified herbal raw ma
­terials that were increasingly used to make medicines came mainly from the East or were collected in Andalusia (Johnstone,
1999). In general, Muslims gave Arabic names to the new plant species and medi
­cines, and many of these names are still used today (al-Faruqi and al-Faruqi, 1986). For example, the work of Ibn al-Awwām lists 600 medicinal plants, while Ibn al-Bayt ār’s book even describes more than 300 previ­ously unclassified or unknown plants (Scott,
1904).
In medical history, Ābu Hanīfah Ahmad ibn Dāwūd Dīnawarī ( 828–896), who is considered the founder of Arab botany, can certainly be called one of the earliest Muslim botanists (Ulmann, 1972). He was a poly­math with profound knowledge of astron­omy, agriculture, botany, and metallurgy, as well as geography, mathematics, and his­tory. Born in Dinawar (a city in western Iran), he studied astronomy, mathematics, and mechanics in Isfahan and philology and poetry in Kufah and Basrah. His work, largely confined to the flora of Arabia (El­good, 1951), is perhaps the most compre­hensive and methodologically best work on herbs of his time. Al-Dinawari’s work was long considered lost, but was made available to a wider public in 1908 in a dissertation from Breslau (Silberberg, 1908). This disser­tation contains the descriptions of about 400 plant species from al-Dinawari’s book, although these records only describe a part of his original work. The information from al-Dinawari is based on older written sources, on oral information from Bedouins,
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and occasionally on several personal obser­vations. His book, entitled Kitāb an-Abāt (Book of Plants), consists of two parts, one of which is an alphabetical index of the names of herbal medicines (and thus the first al­phabetically arranged technical dictionary). The second part contains monographs on plant species that were used for specific practical purposes at that time (Hamidullah,
1973). The work entitled Firdaws al-Hikmah
(Paradise of Wisdom), which was written by al-Tabari before the time of al-Dinawari, in­cludes botany as well as other scientific dis­ciplines such as climatology, astronomy, and philosophy, but nevertheless refers primar­ily to medicinal plants. Al-Kindī ( 800–
866), on the other hand, is considered an
innovator in compiling a herbal manual that would teach useful botanical pharmacology as well as toxicology and medicines derived from minerals (Scarborough, 1980). His Aqrabādin (Medical Formulary) contains 222 recipes with at least 319 raw materials, cor­responding to Muslim pharmacology of the 9th century .
At early Islamic scholars such as Jabir
Ibn Hayyān, Hunayn Ibn Ishāq, and others, the Greek influence is still clearly visible. For example, Ibn Wahshiyah ( 860–935) de­scribes very well the state of knowledge at that time on the use of medicinal plants and the corresponding pharmacology in his herbology entitled Kitāb al-Sumum wa-’l- Teryāqāt (Book of Poisons and Antidotes) (Scarborough, 1980). In another work, he describes the Al-Filahah al-Nabatiyah (Naba- taean Agriculture) as the first comprehensive encyclopedia on plants and their individual agricultural cultivation (Fahd, 1993/1995,
1996). Al-Dinawari also devotes a chapter to
the classification of plants (“Tajnis al­Nabāt”), whereby his descriptions clearly ex­ceed the scope of a usual botanical dictionary, as he also tried to cover all aspects of Bed­ouin life (Bauer, 1988). In his treatise on soil, al-Dinawari describes a variety of differ­ent soil types, explaining, among other things, which soils are particularly suitable for cultivation in each case. He also goes into more detail about the development of the
individual plants (ontogenesis), the individ­ual growth periods, and the production of flowers and fruits. In addition, he also de­scribes individual cultivated plant species such as cereals, grapes, and date palms (Fahd, 1996; Johnstone, 1999).
Compared to Ibn Juljul, the herbalist Ibn Samjun, who lived and worked in Córdo­ba (10th century ), has been somewhat neglected. However, several manuscripts of his work, in which he wrote about Islamic pharmacology, have been preserved in Oxford and London (Kahle, 1952). His exact description of the remedies in alphabetical order later became the model for Ibn al
-
Baytār, who wrote the most comprehensive pharmacologic book in this form (Lewin,
1953). The botanical writings of Ibn al­Bayt ār ( 1197–1248), written in Arabic, are generally considered a high point of an­cient medicine. Ibn al-Baytār was born in Malaga, studied in Seville, where he also col­lected plants together with his teachers and started to journey through Spain and North Africa. Later, he lived as a leading herbalist in Cairo and from there undertook extensive travels through Syria and Asia Minor. Ibn al­Bayt ār was a disciple of Ibn Rumiyah, Abu al-Abbas al-Nabāti (the botanist), and was also strongly influenced by al-Ghāfiqi’s (12th century ) Kitāb al-Adwiyat al-Mofra- dah (The Book of Simple Drugs). Of his out- standing works, one referred to “Materia medica”, and another one to “simple remed­ies”, by which are meant medicinal prepar­ations containing only one single ingredient. Ibn al-Bayt ār wrote his work al-Mughni fi al-Adwiyah (The Sufficient) in Arabic. In the work, which is divided into 20 chapters, he describes in particular the methods for cur­ing various diseases of the head and ears and for making cosmetics and simple antidotes.
Ibn al-Bayt ār best known work, how­ever, is Al-Kitāb ’l-Jāmʿi fi ’l-Aghdiya wa-’l-Ad-
wiyah al-Mofradah (The Comprehensive Book of Foods and Simple Remedies), the most com-
prehensive encyclopedic work on simple drugs. It was the greatest medieval treatise on this subject and a fundamental work on botany, describing 3000 samples, all listed in alphabetical order (Tayarani-Najaran et al.,
2014).
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Ibn Al-Wāfid ( 997–1075) from To­ledo was also esteemed as a very successful scientist of his time. It is reported that he spent about 20 years collecting, arranging, and checking all the names of medicines, their individual properties, and potency. In doing so, he favored dietary measures, and when medicines were needed, he preferred
the simple ones before recommending com­pounded medicines, and when using com­pounded medicines, he also preferred the less complex ones (Meyer, 1854). His main work on simple medicines, Kitāb al-Adwiya al-Mufrada, has been partially preserved in a Latin translation (Liber de medicamentis sim- plicibus) (Wustenfeld, 1840) (Fig. 3.7).
Fig. 3.7. Farmer harvesting melons. (A plate from the Vienna Tacuinum Sanitatis (Codex Vindobonensis Series nova 2644 of the Austrian National Library). Scan from: Hans Biedermann – Medicina Magica, Metaphysische Heilmethoden in spätantiken und mittelalterlichen Handschriften, Akademische Druck- und Verlagsanstalt Graz, 1978 2. Aufl. S. 53, ISBN 3-201-01077-4. Public domain, https://commons.wikimedia.
org/w/index.php?curid=6099643.)
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Al-Ghafiqi (first half of the 12th cen­tury ), who also came from the surround­ing area of Córdoba, integrated into his work, which was called Kitāb al-Jāmʿi fi ’l-Ad- wiyah al-Mofradah (Book of Simple Medicines), mainly new plant species that had not been mentioned until then in the classical Greek sources or in comparable botanical manuals from the Muslims (Scarborough, 1980). Finally, two other botanists from the Islamic West should be mentioned here: firstly, Ibn Sirābiyun, who, however, cannot be exactly assigned in terms of time due to the lack of historical sources. His work entitled Selecta artis medico is mainly based on the writings of Dioscorides and Galen. Secondly, the Muslim botanist Rashid al-Din Ibn al-Suri, who is described as a contemporary of Ibn al-Bayt ār, studied medicine in Damascus and then worked in a hospital in Jerusalem. Al-Suri wrote a treatise on simple medicine, al-Adwiyah al-Mofradah, in which he mainly refuted the statements of his colleague Tāj al-Din al-Bulghāri, who had published his ideas in a similar book. Ibn al-Suri was par­ticularly distinguished by his extensive travels, especially to the mountains of Leba­non, to discover and collect medicinal and aromatic plants. During his trips he was ac­companied by an artist whose task was to depict the plants in their various stages of growth as faithfully as possible and in color (Sarton, 1927–1948). His work was the first example of an Arabic book to be illustrated in color, but unfortunately this work is now considered lost (Scott, 1904).
Traditional Persian culture, with its highly developed medicine and the exten­sive knowledge of numerous medicinal plants, was exposed for centuries to the in­fluences of the Greeks and Romans in par­ticular. The use of plants as medicines or foodstuff dates back several millennia. Now­adays, various strategies are being used to find new and effective drugs from natural sources. To this end, investigating folk and traditional medicine systems, such as TPM, is a rational strategy owing to their antiquity and long-term history of human use. In TPM, considerable attention has been paid to the qualities of individual herbs. The gen­eral and specific properties of each herb such
as its nature, natural habitat, energy pat­tern, effects, indications, duration of action, relationships to the body organs, toxicity and contraindications, dosage, types of pre­parations, and antidotes are discussed.
Images of medical plants can already be found on the cuneiform writing tablets of the ancient Babylonian culture, and it is transmitted that the Egyptians were already aware of the antibacterial effects related to the impact of garlic (Allium sativum) and onion (Allium cepa). The medical knowledge of these advanced civilizations, which ori
­ginated primarily in the Orient, was taken up by the Greeks in ancient times and there­fore they can be regarded as the founders of Western medicine. In this context the phys­ician Hippocrates of Kos (460–370 ), who was one of the most outstanding ancient scholars in medicine and philosophy, must be mentioned. In his written records he de­scribed not only numerous herbal prepar­ations for the treatment of various diseases but also developed a systematic categoriza­tion of diseases known at that time. The Hippocratic school of medicine revolution­ized ancient Greek medicine, establishing it as a discipline distinct from other fields with which it had traditionally been associated and thus establishing medicine as an inde­pendent profession (Fig. 3.8).
The first detailed book on medicinal plants was written around  60 by the Greek physician Pedanius Dioscorides ( 40–90), who practiced in Rome. He summar­ized the basics of herbal medicine for the first time in his book De materia medica, which quickly became a standard work of European medicine with its description of around 600 medicinal plants. De materia medica was very popular until the 17th cen­tury, especially because there was an ori­ginal illustration of every medicinal plant and the individual plant names were pro­vided not only in Latin but also in Greek and Egyptian.
After the fall of the Roman Empire, the reference to the ancient Greek scriptures gradually disappeared. Even from Hippocra­tes (around 400 ) and his important pupil Galen of Pergamon (around  129–216), to whom the systematization of the theory of
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Fig. 3.8. Fresco in the crypt of Anagni’s Cathedral (13th century AD) representing Hippocrates of Kos as teacher and Claudius Galen as student. (By Nina Aldin Thune, CC BY-SA 2.5, https://commons.wikimedia.
org/w/index.php?curid=795032.)
the humors goes back, important informa­tion was lost in medieval Western Europe, except for small excerpts. The remaining writings were translated into Latin by the Roman scholar Cassiodorus ( 485–580) after his retreat to the monastery of Monte Cassino and were thus preserved.
Almost even more important, however, was the translation of the ancient pharma­cognosy “De materia medica” into Latin per- formed by Pedanios Dioscorides (1st century ) which was later the basis to develop drug therapy in Europe.
Galen’s main medical work is entitled Methodus medendi (The Therapeutic Method), where he follows the central idea that all phenomena in nature and in man fulfil a cer­tain purpose. In this context Galen pre­sumes that man is a body–soul entity that is mainly influenced by a dualism of mind and matter. He assumed that the balance of four
elements (black bile, yellow bile, blood, and phlegm) principally influence nature (hu­mans, animals, and plants) and that the rela­tionship of these humors to each other is of central importance, because a disturbance of the individual balance would lead to indis­position and illness. This theory also in­cluded the idea of the Greek physician Alkmaion (around 600 ) who assumed that health can be described as the harmony of pairs of opposites, as it is also found in the Yin–Yang principle of Traditional Chin­ese Medicine (TCM).
In his books entitled De placitis Hippoc-
ratis et Platonis (On the Doctrines of Hippocra­tes and Plato), written between 161 and 177
, Galen attempts to prove that the ideas of the physician Hippocrates and the philoso­pher Plato about the soul forces, which are supposed to control the mental and physical processes in body, coincide more or less.
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The pharmacology of the Islamic, Arabic, and Occidental cultural areas was oriented toward Galen’s complicated formulations until the late Middle Ages and it was only under the influence of Paracelsus’ medical teachings that this situation changed. Ga­len’s systematically developed work, which was also translated into Syriac and Arabic by Hunain ibn Ishāq ( 808–873) in the Early Middle Ages, was of such importance for posterity in its scope and scientific level that it took 1400 years for it to be slowly over
-
come by more recent research.
In the 16th century , the so-called “Ga­lenists” (e.g., Leonhart Fuchs) as followers of Galen’s teachings and the “Arabists”, who mainly referred to Avicenna (Strohmaier,
1999), were irreconcilably opposed to each other. The more medical-oriented “Galenism” was on the advance at this time, whereas “Arabism” was in retreat; likewise there were several disputes between “Galenists” and the so-called “Paracelsists” (Schmitz, 1984; Durl­ing, 1989; Schipperges and Durling, 1989). Paracelsism was an early modern medical movement based on the theories and therap­ies of Paracelsus ( 1493–1541) who was a Swiss physician, alchemist, lay theologian, and philosopher of the German Renaissance.
The great European monarch Charle­magne ( 748–814) also made a significant contribution to the development of monas­tic medicine by issuing a new decree with the name Capitulare de villis that made it obliga­tory for all monasteries and towns to estab­lish herb gardens and also prescribed in detail a kind of standard for monastery gar­dens. For example, a separate bed was re­quired for each medicinal plant species and for all medicinal plants to be used, such as sage (Salvia officinalis), wormwood (Arte- misia absinthium), fennel (F. vulgare), opium poppy (P. somniferum), lovage (Levisticum of- ficinale), chervil (Anthriscus cerefolium), vari- ous types of radish (Raphanus spp.), peppermint (M. × piperita), and spearmint (Mentha spicata), he specified exactly how the individual species should be cultivated (Strank and Meurers-Balke, 2008). Since Charlemagne’s empire at that time extended as far as Italy and southern France, the list of cultivated medicinal plants also contains
several Mediterranean species, which could obviously be cultivated in Central Europe without any problems due to the warm period that prevailed at that time.
Future Role of Traditional
Persian/Iranian Medicine
In general, Traditional Medicine has the advantage of being considered part of the respective culture, thus circumventing cul­tural problems that might interfere with the practice of “modern” medicine. Moreover, it can be used in conjunction with and as a support to conventional medicine. The fur­ther development and promotion of Trad­itional Medicine can therefore also be seen as a respect and appreciation of the individ­ual culture and heritage of people around the world. As has been shown in this chap­ter, TPM/TIM contains the extensive know­ledge used in Persia from ancient times to present days to diagnose, prevent, and elim­inate various diseases. It is based solely on practical experiences and observations passed down from generation to generation (Rezaeizadeh etal., 2009).
Most parts obtained from medicinal plants, such as leaves, roots, flowers, and seeds, are used either in the form of extracts (e.g., tea infusions from a mixture of differ­ent herbs) or as isolated, more or less puri­fied plant constituents (Nikbakht and Kafi,
2008). The individual healing effects are due to the effectiveness of different chemical substances in more or less complex plant mixtures. The chemical active components can mainly be attributed to secondary plant metabolites such as alkaloids, amino acids, flavonoids, carotenoids, saponins, phytos
­terols, coumarins, and terpenoids. Even today, medicinal and aromatic plants are still of great economic importance worldwide, as they represent important, sustainable raw materials not only for the production of phytopharmaceuticals, but also in the perfume, aroma, and cosmetics industries (Najafi etal., 2010).
Essential oils and solvent extracts ob-
tained from various medicinal plants, herbs,
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and spices in most cases contain a complex mixture of biologically active ingredients. Even today, essential oils are widely used not only for medicinal purposes and flavoring, but also in food production due to their indi­vidual antimicrobial activity and associated preservative properties (Nejad Ebrahimi et al., 2008). Compared to synthetic medi­cines, herbal medicines and their ingredients usually do not have adverse effects on hu­mans (Banerjee, 2002). It is known from his­tory that many infectious diseases have been successfully treated with herbal remedies (Nezhadali and Zarrabi Shirvan, 2010). Therefore, the use of traditional and medi­cinal plants in developing countries is still an important basis for maintaining health in these countries today (de Silva, 1997). Also recently, medicinal and aromatic plants have gained increasing importance in various sec­tors such as agroindustry, the perfume in­dustry, the phytopharmaceutical industry, and natural cosmetics (Khorasaninejad etal.,
2010). Over a long period, medicinal plants have played an important role in the treat­ment of many diseases, especially in Asian and African countries (Fallah-Hoseini etal.,
2006). As ancient documents show, certain plants were already used for various medi­cinal purposes in ancient Persia (Nikbakht and Kafi, 2008). Today, in Iran several pro­jects are also carried out to further explore the importance of herbal medicine, some­times with the support of modern analytical techniques, and in this way to highlight the special therapeutic benefits of medicinal plants over some synthetic drugs (Nikbakht et al., 2008). In contrast to Traditional Medicine, the current (modern) approach to evaluate the efficacy of herbal medicines is predominantly based on the aim to identify and quantify the individual plant substances occurring in medicinal herbs as precisely as possible. In this context, the individual sub­stances related to various chemical groups are detected by means of very sensitive and reliable chromatographic and spectroscopic analytical methods.
For a long time, traditional medicine methods were marginalized compared to the steady increase in knowledge observed in mod­ern medicine. However, in turn, the therapeutic
potential of evidence-based medicine has not always been fully realized. Therefore, some studies have been initiated to quantify the de­scriptive classification theory of TCM and TPM/TIM (Ma et al., 2010; Lu et al., 2012; Rezadoost etal., 2016). As in other traditional medicine systems, TPM/ITM also classifies the human body from signs and symptoms into different classes or temperaments similar to the theory of TCM (Ardekani etal., 2011). The authors found a close relationship be
­tween the main chemical compounds of medi­cinal plants and the temperaments mentioned in traditional Iranian manuscripts. They were able to assign hot and dry temperaments to those plants containing phenolic compounds as the main constituents, with the exception of those containing tannins, which have cold and dry temperaments. Plants containing es­sential oils were also identified as having hot and dry temperaments, with the exception of those whose essential oils contain mainly alco­holic constituents, which have cold and dry temperaments. In the case of alkaloid-contain­ing plants, either a cold and dry or a hot and dry temperament was found, depending on their individual alkaloid structure (Ardekani etal., 2011).
Although several omics-based and also non-omics-based research studies have al­ready been conducted to describe some of these temperaments in more detail, there is a considerable need for further research ac­tivities to clarify the outstanding questions regarding the theory of TCM and TPM/TIM in this context. A study by Rezadoost etal. (2016) compared the proteomic profiles of two temperaments (hot–wet and cold–dry) to further describe the molecular basis of the TPM/TIM theory for classifying the human body and possible molecular bio­markers proposed for these temperaments.
Interactions with Islamic Traditional
Medicine, Traditional Chinese
Medicine, Ayurveda, Kampo, and
Monastic Medicine
In general, Middle Eastern medicine was strongly influenced by teachers from the Far