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ETHNOPHARMACOLOGICAL RELEVANCE: Plant mixtures are understudied in ethnobotanical research. AIM OF THE STUDY: To investigate the importance of plant mixtures (remedies consisting of at least two plants) in Dominican traditional medicine. MATERIALS AND METHODS: A Spanish language questionnaire was administered to 174 Dominicans living in New York City (NYC) and 145 Dominicans living in the Dominican Republic (DR), including lay persons (who self-medicate with plants) and specialists (traditional healers). Plants were identified through specimens purchased in NYC botánica shops and Latino grocery shops, and from voucher collections. RESULTS: The percentage of mixtures as compared to single plants in plant use reports varied between 32 and 41%, depending on the geographic location (NYC or DR) and participant status (lay person or specialist). Respiratory conditions, reproductive health and genitourinary conditions were the main categories for which Dominicans use plant mixtures. Lay persons reported significantly more mixtures prepared as teas, mainly used in NYC to treat respiratory conditions. Specialists mentioned significantly more botellas (bottled herbal mixtures), used most frequently in the DR to treat reproductive health and genitourinary conditions. Cluster analysis demonstrated that different plant species are used to treat respiratory conditions as compared to reproductive health and genitourinary conditions. Interview participants believed that combining plants in mixtures increases their potency and versatility as medicines. CONCLUSIONS: The present study demonstrates the importance and complexity of plant mixtures in Dominican traditional medicine and the variation in its practices influenced by migration from the DR to NYC, shedding new light on the foundations of a particular ethnomedical system. [ABSTRACT FROM AUTHOR]

Ethnopharmacological Relevance: Medicinal plants are frequently used in Caribbean traditional medicine as low-cost, culturally relevant treatments for women's health concerns, such as gynecological infections. These plants are typically applied topically, potentially affecting both pathogenic bacteria (e.g., Gardnerella vaginalis) and beneficial vaginal microbes (Lactobacillus spp.). However, few studies have examined the impact of these plants on both beneficial and pathogenic vaginal bacteria., Aim of the Study: Argemone mexicana, available in New York City and commonly used to treat gynecological infections by immigrants from the Dominican Republic, was investigated for its chemical variation and effects on the vaginal microbiota. We hypothesized that variations in the bioactivity of Argemone mexicana on Gardnerella vaginalis and Lactobacillus spp. are due to differences in antimicrobial compounds across different preparations., Materials and Methods: Untargeted and targeted metabolomic analysis using UPLC-qToF-MS and UPLC-TQD-MS were conducted on Argemone mexicana samples collected in New York City. Antimicrobial assays were used to assess the effects of Argemone mexicana samples on beneficial and pathogenic vaginal bacteria. ProGenesis QI and EZinfo were used for metabolomic analysis to link bioactivity with chemometric data., Results: UPLC-qToF-MS and statistical analyses showed that chemical variation correlated with plant tissue type and processing (dry or fresh samples). These differences were evident in antimicrobial screenings, where active plant samples were antimicrobial against pathogenic bacteria only, with no effect on beneficial Lactobacillus. Known antimicrobial benzoquinone alkaloids, such as berberine, were partly responsible for the observed microbiological activity. Berberine exhibited similar inhibition patterns, reduced biofilm formation, and trended towards higher concentration in active samples., Conclusions: Extracts of Argemone mexicana, a plant used in Caribbean women's health, did not have an effect on beneficial vaginal microbes, but did inhibit pathogenic Gardnerella vaginalis. This antimicrobial activity correlated with the chemical variation of berberine and other related alkaloids across traditional preparations of Argemone mexicana. These results may be relevant for treating gynecological infections, not only with this plant, but other berberine-containing taxa., Competing Interests: Declaration of competing interest The authors declare no conflict of interest., (Copyright © 2024 Elsevier B.V. All rights reserved.)

Ethnopharmacological Relevance: Menstrual disorders are generally not perceived as major health concerns by global health organizations, despite being disruptive to women׳s daily activities, particularly when access to sanitary facilities or analgesics is limited. Improving menstrual health requires access to safe and effective medication, but many women in Latin America, Africa or Asia prefer traditional medicine above modern remedies (such as contraceptives), as they can cause physical symptoms associated with fertility loss. Many medicinal plants are used for menstrual disorders, but few have been examined for their pharmacological activities related to traditional uses. Plants that have a smooth muscle-relaxant effect could ease menstrual cramps, but there are indications that dysmenorrhea in low-income countries is commonly treated with emmenagogues. This review aims to assess the most salient plants used to treat menstrual morbidity in Latin America and the Caribbean, sub-Saharan Africa, South and Southeast Asia, their uterine properties and adverse effects. To test whether plants used for painful menstruation could have uterine contracting properties, we recorded whether these species were also used to ease birth, induce menstruation, abortion or expel the afterbirth, as these suggest spasmogenic activities., Materials and Methods: We reviewed the literature documenting traditional plant use in the study area for dysmenorrhea, regulating or inducing menstruation, uterine cleansing, uterine fibroids, expelling the placenta and lochia and for easing childbirth. Thirty genera (59 species) used in at least two continents or frequently throughout one continent, where shortlisted from the 90 most salient plant species emerging from our literature review. Using Medline, we searched for pharmacological properties and/or mechanisms of action relevant to their traditional uses of the shortlisted species. We searched VigiBase™, the WHO global individual case safety report database, on reported adverse drug reactions associated with these species., Results: More than 2000 plant species are used for menstrual disorders in the study area. The most salient uses are to treat painful menstruation, induce or regulate menses, and induce abortion. Around half (29) of the 59 most salient species have been tested for their pharmacological effects, of which 48% act as uterine spasmolytics and 31% as uterine spasmogenics. Several frequently used species contain toxic constituents, which may put women and their unborn children at serious risk. VigiBase(TM) listed adverse drug reactions for 18 of these species, but few reports came from the study area., Conclusions: Research into the risks and benefits of medicinal plants for menstrual complaints should be given a higher priority in reproductive health programs that respect traditional knowledge and practices. Increased data collection is needed on adverse drug reactions among women using herbal medicines for reproductive health, especially in countries with limited reproductive health facilities., (Copyright © 2014 Elsevier Ireland Ltd. All rights reserved.)

Ethnopharmacological Relevance: The present conceptual review explores intercultural healthcare--defined as the integration of traditional medicine and biomedicine as complementary healthcare systems--in minority and underserved communities. This integration can take place at different levels: individuals (patients, healers, biomedical healthcare providers), institutions (health centers, hospitals) or society (government policy)., Background: Contemporary ethnobotany research of traditional medicine has primarily dealt with the botanical identification of plants commonly used by local communities, and the identification of health conditions treated with these plants, whereas ethnopharmacology has focused on the bioactivity of traditional remedies. On the other hand, medical anthropology seems to be the scholarship more involved with research into patients' healthcare-seeking itineraries and their interaction with traditional versus biomedical healthcare systems. The direct impact of these studies on public health of local communities can be contested., Aim of the Review: To compare and discuss the body of scholarly work that deals with different aspects of traditional medicine in underserved and minority communities, and to reflect on how gaps identified in research can be bridged to help improve healthcare in these communities., Key Findings: The literature covers a broad range of information of relevance to intercultural healthcare. This information is fragmented across different scientific and clinical disciplines. A conceptual review of these studies identifies a clear need to devote more attention to ways in which research on traditional medicine can be more effectively applied to improve local public health in biomedical resource-poor settings, or in geographic areas that have disparities in access to healthcare., Conclusions: Scholars studying traditional medicine should prioritize a more interdisciplinary and applied perspective to their work in order to forge a more direct social impact on public health in local communities most in need of healthcare., (Copyright © 2013 Elsevier Ireland Ltd. All rights reserved.)

Ethnopharmacological Relevance: Enslaved Africans in the Americas had to reinvent their medicinal flora in an unknown environment by adhering to plants that came with them, learning from Amerindians and Europeans, using their Old World knowledge and trial and error to find substitutes for their homeland herbs. This process has left few written records, and little research has been done on transatlantic plant use. We used the composition of aphrodisiac mixtures across the black Atlantic to discuss the adaptation of herbal medicine by African diaspora in the New World. Since Africans are considered relatively recent migrants in America, their healing flora is often said to consist largely of pantropical and cultivated species, with few native trees. Therefore, we expected Caribbean recipes to be dominated by taxa that occur in both continents, poor in forest species and rich in weeds and domesticated exotics., Materials and Methods: To test this hypothesis, we compared botanical ingredients of 35 African and 117 Caribbean mixtures, using Dentrended Correspondence Analysis, Cluster Analysis, Indicator Species Analysis and Mann-Whitney U tests., Results: Very few of the 324 ingredients were used on both continents. A slightly higher overlap on generic and family level showed that Africans did search for taxa that were botanically related to African ones, but largely selected new, unrelated plants with similar taste, appearance or pharmacological properties. Recipes from the forested Guianas contained more New World, wild and forest species than those from deforested Caribbean islands. We recorded few 'transatlantic genera' and weeds never dominated the recipes, so we rejected our hypothesis., Conclusions: The popularity of bitter tonics in the Caribbean suggests an African heritage, but the inclusion of Neotropical species and vernacular names of plants and mixtures indicate Amerindian and European influence. We show that enslaved Africans have reinvented their herbal medicine wherever they were put to work, using the knowledge and flora that was available to them with great creativity and flexibility. Our analysis reveals how transplanted humans adapt their traditional medical practises in a new environment., (Copyright © 2012 Elsevier Ireland Ltd. All rights reserved.)

Ethnopharmacological Relevance: Analysing why and how ethnobotanical traditions 'survive' is important for a better understanding of migrants' health care behaviour. This study investigates the use of traditional medicinal plants among first generation migrants from Bolivia and Peru in London, in relation to practices among their peers in their respective home countries in order to assess changes in traditional health care among newcomer communities., Materials and Methods: A total of 98 semi-structured interviews were conducted in London (UK), Cochabamba (Bolivia) and Lima (Peru). Voucher specimens of all reported species were collected and identified. By comparing data on active plant uses and their applications, overlap and differences between health care practices before and after migration could be outlined., Results: In London, people can rely on more biomedical alternatives and have access to less traditional herbal remedies as compared to their countries of origin. In general, Peruvians and Bolivians in London continued to use traditional medicine for common, self-limiting ailments that were also widespread in their countries of origin. The same widely used (either readily available cosmopolitan or culturally relevant) plant species appeared in the post-migration group. In general, less freshly available medicinal species were used in London and more edible, primary food species were consumed for medicinal purposes after migration., Conclusions: Bolivian and Peruvian migrants in London clearly proved to be resilient in their use of home-remedies when faced with the changes that come with migration. The observed ethnobotanical coping strategies are characterised by: (1) the preservation of culturally salient species (cultural key stone species); (2) a positive influence of the presence of cultural diversity (cultural edge effect), (3) a creative blending of different kinds of knowledge and resources, noticeable in an increased use of dried, processed alternatives and food species; and (4) a reliance on social networks for the exchange of plant material., (Copyright © 2011 Elsevier Ireland Ltd. All rights reserved.)

Ethnopharmacological Relevance: Medicinal plant use was investigated in Apillapampa, a community of subsistence farmers located in the semi-arid Bolivian Andes., Aim of the Study: The main objectives were to identify the culturally most significant medicinal plant families and species in Apillapampa., Materials and Methods: A total of 341 medicinal plant species was inventoried during guided fieldtrips and transect sampling. Data on medicinal uses were obtained from fifteen local Quechua participants, eight of them being traditional healers., Results: Contingency table and binomial analyses of medicinal plants used versus the total number of inventoried species per family showed that Solanaceae is significantly overused in traditional medicine, whereas Poaceae is underused. Also plants with a shrubby habitat are significantly overrepresented in the medicinal plant inventory, which most likely relates to their year-round availability to people as compared to most annual plants that disappear in the dry season. Our ranking of medicinal species according to cultural importance is based upon the Quality Use Agreement Value (QUAV) index we developed. This index takes into account (1) the average number of medicinal uses reported for each plant species by participants; (2) the perceived quality of those medicinal uses; and (3) participant consensus., Conclusions: According to the results, the QUAV index provides an easily derived and valid appraisal of a medicinal plant's cultural significance.

Aim of the Study: Costus spicatus Sw. (Costaceae) is a prominent medicinal herb used by Dominicans in the Dominican Republic and the United States for the treatment of diabetes, a growing epidemic in the Hispanic community. An ethnobotanical survey of the Dominican community in New York City revealed the popular use of a tea from the insulina plant to treat hyperglycemia. Insulina was identified as Costus spicatus. We tested the ability of a tea made from the leaves of Costus spicatus to alter glucose homeostasis in C57BLKS/J (KS) db/db mice, a model of obesity-induced hyperglycemia with progressive beta cell depletion., Materials and Methods: From 6 to 16 weeks of age, Experimental and Control animals (n=6/5) were given ad lib access to Costus spicatus tea or water, respectively., Results: Weight gain and progression of hyperglycemia and insulinopenia between the Experimental and Control groups were statistically indistinguishable. There was no difference between groups in average fed or fasting glucose and insulin concentrations. Intraperitoneal (IP) insulin tolerance testing after the 10-week study period showed that Costus spicatus tea consumption did not alter insulin sensitivity., Conclusions: These data suggest that at the dose given, tea made from Costus spicatus leaves had no efficacy in the treatment of obesity-induced hyperglycemia. More investigation is needed to more fully explore dosages and the possible utility and biological activity of this common Dominican herbal remedy for the treatment of type 2 diabetes mellitus.

Aim of the Study: To investigate traditional health care practices and changes in medicinal plant use among the growing Colombian community in London., Materials and Methods: Ethnobotanical fieldwork consisted of qualitative, in-depth, semi-structured interviews with 23 Colombians living in London and botanical identification of 46 plant species actively used as herbal remedies. Subsequently, research data were compared with literature on ethnobotany and traditional herbal medicine in the home country, using a framework on cross-cultural adaptation, adjusted for the purpose of this study., Results: Similarities and discrepancies between data and literature are interpreted as potential indicators of continuity and loss (or deculturation) of traditional remedies, respectively. Remedies used in London that are not corroborated by the literature suggest possible newly acquired uses., Conclusions: Cross-cultural adaptation related to health care practices is a multifaceted process. Persistence, loss and incorporation of remedies into the Colombian folk pharmacopoeia after migration are influenced by practical adaptation strategies as well as by symbolic-cultural motives of ethnic identity.