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Maraschio A, Wulhfard K, Monsellato L. Case study of clinical improvement of atopic dermatitis in a patient treated with herbal-based parapharmaceuticals. JOURNAL OF COMPLEMENTARY & INTEGRATIVE MEDICINE 2023; 20:504-511. [PMID: 37043584 DOI: 10.1515/jcim-2023-0005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Accepted: 03/14/2023] [Indexed: 06/16/2023]
Abstract
OBJECTIVES Atopic dermatitis (AD) is a chronic inflammatory skin disorder that has the immunoallergological characteristics of atopy and is characterised by itchy dermatitis with a recurrent-relapsing course and skin hyperreactivity. Official therapy involves topical anti-inflammatory and antimicrobial drugs for the skin but, as it is a recurrent and relapsing disease, the use of systemic anti-inflammatory and immunosuppressive drugs is eventually necessary to control the disease and prevent clinical exacerbation. However, systemic treatment may have a major impact on the patient, induce adverse reactions and not resolve the disease. The aim of the study is to establish whether the use of plant extracts may play a role in improving the quality of life of AD patients. CASE PRESENTATION We describe the clinical case of a 27-year old Caucasian woman with dry, lichenified, slightly reddened and scaly skin lesions (EASI score 1.6), with anamnesis of atopy and multiple allergies, who was treated with an alternative therapeutic strategy to her previous ones, with three herbal-based parapharmaceuticals (Ribes nigrum L. buds, Piper longum L. fruits, Perilla frutescens L. Britton leaves and seeds in LUXFITOAL; Arctium lappa L. radix, Helychrisum italicum (Roth.) G. Don. flos, Viola tricolor L. herba cum floribus in LUXDERM; Trigonella foenum grecum seed extract, Hypericum perforatum extract in LUXTRIGONELLA cream). Two weeks after taking the drops and applying the cream the dry, lichenified skin lesions were no longer present and an eudermic state of the skin is restored (EASI score 0). Furthermore, six months after the beginning of the therapy, the good condition of the skin was maintained. The patient has never had such a long lapse of time without dermatitis reappearing on the anatomical sites observed at the first follow-up. After nine months, the patient was treated again for a dermatitis that had developed at another anatomical site, spreading frontally at the border between the lower margin of the neck and the upper margin of the thorax and at the chin (EASI value 3.2), achieving a marked improvement and a return of the eudermic state after two days (EASI value 0). CONCLUSIONS The patient was satisfied with the "clean hands" with no inflammation, with the resolution of the dermatitis in the other body sites and stated that the therapy has improved her perceived quality of life. These botanicals may be effective and play a role in improving the quality of life of a person with AD.
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Inhibition of Serum- and Glucocorticoid-Regulated Protein Kinase-1 Aggravates Imiquimod-Induced Psoriatic Dermatitis and Enhances Proinflammatory Cytokine Expression through the NF-kB Pathway. J Invest Dermatol 2023; 143:954-964. [PMID: 36623704 DOI: 10.1016/j.jid.2022.12.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Revised: 11/16/2022] [Accepted: 12/20/2022] [Indexed: 01/09/2023]
Abstract
Although the anti-inflammatory effect of serum- and glucocorticoid-regulated protein kinase 1 (SGK1) has been established in other diseases, the possible regulatory role of SGK1 in psoriasis and the underlying molecular mechanisms remain largely unknown. In this study, we found that SGK1 expression was decreased in macrophages from patients with psoriasis. Moreover, a specific pharmacological SGK1 inhibitor, EMD638683, significantly enhanced imiquimod-mediated toll-like receptor 7/8 activity and proinflammatory cytokine production in RAW264.7 cells, and this result was confirmed by Sgk1 small interfering RNA. Further mechanistic data showed that SGK1 inhibition increased the phosphorylation of Bruton's agammaglobulinemia tyrosine kinase; moreover, Bruton's agammaglobulinemia tyrosine kinase inhibition abrogated the proinflammatory effects of the SGK1 inhibitor on toll-like receptor 7/8 activation, thereby validating that SGK1 inhibition enhances the toll-like receptor 7/8 pathway by increasing Bruton's agammaglobulinemia tyrosine kinase phosphorylation. In addition, our in vivo results showed that SGK1 inhibition significantly increased the secretion of proinflammatory cytokines, including IL-1β, IL-6, and TNF-α, and the infiltration of T helper 17 cells in an imiquimod-induced psoriasis mouse model. Altogether, these results show that SGK1 plays a critical role in the pathogenesis of psoriasis by modulating inflammatory responses in skin lesions, indicating that SGK1‒Bruton's agammaglobulinemia tyrosine kinase signaling could be a novel therapeutic target for the control of psoriasis.
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Ajjoun M, Kharchoufa L, Alami Merrouni I, Elachouri M. Moroccan medicinal plants traditionally used for the treatment of skin diseases: From ethnobotany to clinical trials. JOURNAL OF ETHNOPHARMACOLOGY 2022; 297:115532. [PMID: 35843409 DOI: 10.1016/j.jep.2022.115532] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Revised: 06/30/2022] [Accepted: 07/08/2022] [Indexed: 06/15/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Skin diseases are among the most common human health affections. A healthy skin promotes a healthy body that can be achieved through modern, allopathic and natural medicines. Therefore, medicinal plants can be a reliable therapy in treating skin diseases in humans through a diverse range of bioactive molecules they contain. AIM OF THE STUDY This review aims to provide for the first-time scientific evidence related to the dermatological properties of Morocco's medicinal plants and it aims to provide a baseline for the discovery of new drugs having activities against skin issues. METHODS This review involved an investigation with different search engines for Moroccan ethnobotanical surveys published between 1991 and 2021. The plants used to treat skin diseases have been determined. Information regarding pharmacological effects, phytochemical, and clinical trials related to the plants listed in this review was collected from different scientific databases like PubMed, Science Direct, Google Scholar, Web of Science and Scopus. The data were analyzed and summarized in the review. RESULTS A total of 401 plants belonging to 86 families mainly represented by Asteraceae, Lamiaceae, Fabaceae, and Apiaceae which have been documented to be in common use by Moroccans for managing skin diseases. Among those plants recorded, the most commonly used are Allium cepa L, Chamaeleon gummifer (L.) Cass and Salvia rosmarinus Schleid. Mill. Leaves were the most commonly used plant part, while powder and decoction were the most common method of traditional drug preparation. 107 of the 401 plants (27%) have undergone pharmacological validation. A total of 44 compounds isolated from 27 plants were investigated to treat different types of skin diseases, and 25 plants have been clinically studied for their activities against skin diseases. CONCLUSION The beneficial effects of using Moroccan medicinal plants to treat skin diseases, according to traditional practices, have been proven in numerous scientific studies. Therefore, other studies should focus on isolating and identifying specific bioactive compounds from plant extracts, revealing more valuable therapeutic properties. Furthermore, additional reliable clinical trials are needed to confirm their beneficial effect on patients with skin diseases.
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Affiliation(s)
- Mohammed Ajjoun
- Laboratory of Bioresources, Biotechnology, Ethnopharmacology, and Health, Faculty of Sciences, Mohammed First University, Oujda, Morocco.
| | - Loubna Kharchoufa
- Laboratory of Bioresources, Biotechnology, Ethnopharmacology, and Health, Faculty of Sciences, Mohammed First University, Oujda, Morocco.
| | - Ilyass Alami Merrouni
- Laboratory of Bioresources, Biotechnology, Ethnopharmacology, and Health, Faculty of Sciences, Mohammed First University, Oujda, Morocco.
| | - Mostafa Elachouri
- Laboratory of Bioresources, Biotechnology, Ethnopharmacology, and Health, Faculty of Sciences, Mohammed First University, Oujda, Morocco.
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Effects of Fenugreek Seed Extracts on Growth Performance and Intestinal Health of Broilers. Poult Sci 2022; 101:101939. [PMID: 35691048 PMCID: PMC9194860 DOI: 10.1016/j.psj.2022.101939] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Revised: 04/06/2022] [Accepted: 04/25/2022] [Indexed: 01/25/2023] Open
Abstract
The purpose of this experiment was to study the effects of fenugreek seed extract (FSE) on the growth performance, intestinal morphology, intestinal immunity and cecal micro-organisms in yellow-feathered broilers. A total of 240 one-day-old male yellow-feathered broilers were selected and randomly assigned to four treatments with 6 replicates per group and ten broilers per replicate. Started from the third day, birds were fed with basal diet (CON group) or basal diet supplemented with 30 mg/kg Zinc bacitracin (ZB group), or basal diet supplemented with 50 (D-FSE group) or 100 (H-FSE group) mg/kg FSE, respectively. The experiment lasted for 56 d. The results showed that dietary FSE supplementation improved average daily weight gain (ADG) and ratio of feed to weight gain (F: G) (P < 0.01), increased intestinal villus height (VH), villus height to crypt depth ratio (V/C) (P < 0.05), serum concentrations of IL-10, and the contents of secretory immunoglobulin A (sIgA) (P < 0.05), as well as decreased the activity of iNOS (P < 0.05). The high-throughput sequencing results showed that dietary FSE supplementation increased the alpha diversity of cecal microbes, and Firmicutes, Bacteroidetes, Verrucomicrobia and Proteobacteria taken up 95% of all phyla detected, FSE significantly reduced Campylobacter, Synergistes, and Lachnoclostridium abundance (P ≤ 0.05). There were significant difference in more than 30 KEGG pathways between FSE added group and control group or ZB group. FSE supplementation, in other words, maintained gut microbiota homeostasis while improving broiler growth performance. As a result, FSE has the potential to replace prophylactic antibiotic use in poultry production system.
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Traditional Knowledge of Medicinal Plants Used in the Northeastern Part of Morocco. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2021; 2021:6002949. [PMID: 34512779 PMCID: PMC8426073 DOI: 10.1155/2021/6002949] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/06/2021] [Accepted: 07/27/2021] [Indexed: 11/26/2022]
Abstract
The knowledge of the plants that are used may provide insight on their properties for further exploration. This study aimed to identify and collect data about medicinal plants used in traditional medicine by the population of the provincial region of Taza, Morocco. An ethnobotanical survey was carried out among 200 informants, competent villagers, herbalists, and traditional healers from the provincial region of Taza city through direct interviews using a structured questionnaire. The survey reported 55 plant species belonging to 28 families used in the folk medicine. Informants' results showed that the most frequently used plants were Origanum compactum, Mentha pulegium, Rosmarinus officinalis L., Aloysia citrodora, Calamintha officinalis Moench, and Artemisia herba-alba Asso., with a relative frequency of citation of 76%, 72%, 60%, 42%, 40%, and 30%, respectively. Moreover, in this study, the Lamiaceae family was the most commonly reported plant family, and the leaves were the most frequently used parts of the plants; otherwise, decoction and infusion were the most used modes in the preparation of remedies from medicinal plants in the traditional medicine. The sociodemographic characteristics showed that women use medicinal plants slightly more than men, the illiterate people use the medicinal plant the most, and old people have more information about the medicinal plants than the new generations. The region of Taza of Morocco has an important floristic biodiversity of medicinal plants which are used in traditional medicine practice. This result provides a good database for pharmacological screening in the search for new plants that can contain new bioactive molecules that can be used as a bioactive ingredient of medicament or as a biological alternative in pharmacology.
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Zhang W, Zhang Y, Chen S, Zhang H, Yuan M, Xiao L, Lu Y, Xu H. Trigonelline, An Alkaloid From Leonurus japonicus Houtt., Suppresses Mast Cell Activation and OVA-Induced Allergic Asthma. Front Pharmacol 2021; 12:687970. [PMID: 34421593 PMCID: PMC8371462 DOI: 10.3389/fphar.2021.687970] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Accepted: 05/27/2021] [Indexed: 12/02/2022] Open
Abstract
Trigonelline, one of the active compounds from Leonurus japonicus Houtt., has been proven to have pharmacological value in diabetes, the central nervous system and cardiovascular diseases. Recent studies have shown that it may also be beneficial in controlling inflammation. However, the mechanism of the antiallergic effects of trigonelline has not been well studied. As the key effector cells participating in the development of allergies, mast cells have been linked to the pathogenesis of asthma for ages. In this study, we demonstrated the inhibitory effect of trigonelline on activated bone marrow-derived mast cells (BMMCs) and verified its anti-inflammatory properties using an ovalbumin (OVA)-induced asthma model. Trigonelline suppressed BMMC degranulation and decreased the production of the cytokines, prostaglandin D2 (PGD2) and leukotriene C4 (LTC4) in a dose-dependent manner. The potent mechanism is mainly through the suppression of the nuclear factor kappa B (NF-κB) and mitogen-activated protein kinase (MAPK) signaling pathways. Trigonelline can alleviate pathological damage in lung tissue and reduce the levels of serum immunoglobulin E (IgE) and T helper 2 (Th2) cytokines. RNA-seq results revealed the HIF-1α to be a potential target for the allergic reaction. Taken together, our study demonstrated that trigonelline can inhibit allergic inflammation in vitro and in vivo, which may provide a basis for novel anti-inflammatory drug development.
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Affiliation(s)
- Wenhui Zhang
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Yingling Zhang
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Simin Chen
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Hong Zhang
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Man Yuan
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Lianbo Xiao
- Institute of Arthritis Research, Shanghai Academy of Chinese Medical Sciences, Guanghua Integrative Medicine Hospital, Shanghai, China
| | - Yue Lu
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Hongxi Xu
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- Shuguang Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
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Sibeko L, Johns T. Global survey of medicinal plants during lactation and postpartum recovery: Evolutionary perspectives and contemporary health implications. JOURNAL OF ETHNOPHARMACOLOGY 2021; 270:113812. [PMID: 33450288 DOI: 10.1016/j.jep.2021.113812] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/02/2020] [Revised: 12/20/2020] [Accepted: 01/08/2021] [Indexed: 05/28/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Cross-cultural comparison of plants used during lactation and the postpartum period offers insight into a largely overlooked area of ethnopharmacological research. Potential roles of phytochemicals in emerging models of interaction among immunity, inflammation, microbiome and nervous system effects on perinatal development have relevance for the life-long health of individuals and of populations in both traditional and contemporary contexts. AIM OF THE STUDY Delineate and interpret patterns of traditional and contemporary global use of medicinal plants ingested by mothers during the postpartum period relative to phytochemical activity on immune development and gastrointestinal microbiome of breastfed infants, and on maternal health. MATERIALS AND METHODS Published reviews and surveys on galactagogues and postpartum recovery practices plus ethnobotanical studies from around the world were used to identify and rank plants, and ascertain regional use patterns. Scientific literature for 20 most-cited plants based on frequency of publication was assessed for antimicrobial, antioxidant, anti-inflammatory, immunomodulatory, antidepressant, analgesic, galactagogic and safety properties. RESULTS From compilation of 4418 use reports related to 1948 species, 105 plant taxa were recorded ≥7 times, with the most frequently cited species, Foeniculum vulgare, Trigonella foenum-graecum, Pimpinella anisum, Euphorbia hirta and Asparagus racemosus, 81, 64, 42, 40 and 38 times, respectively. Species and use vary globally, illustrated by the pattern of aromatic plants of culinary importance versus latex-producing plants utilized in North Africa/Middle East and Sub-Saharan Africa with opposing predominance. For 18/20 of the plants a risk/benefit perspective supports assessment that positive immunomodulation and related potential exceed any safety concerns. Published evidence does not support a lactation-enhancing effect for nearly all the most-cited plants while antidepressant data for the majority of plants are predominately limited to animal studies. CONCLUSIONS Within a biocultural context traditional postpartum plant use serves adaptive functions for the mother-infant dyad and contributes phytochemicals absent in most contemporary diets and patterns of ingestion, with potential impacts on allergic, inflammatory and other conditions. Polyphenolics and other phytochemicals are widely immunologically active, present in breast milk and predominately non-toxic. Systematic analysis of phytochemicals in human milk, infant lumen and plasma, and immunomodulatory studies that differentiate maternal ingestion during lactation from pregnancy, are needed. Potential herb-drug interaction and other adverse effects should remain central to obstetric advising, but unless a plant is specifically shown as harmful, considering potential contributions to health of individuals and populations, blanket advisories against postpartum herbal use during lactation appear empirically unwarranted.
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Affiliation(s)
- Lindiwe Sibeko
- Department of Nutrition, School of Public Health and Health Sciences, University of Massachusetts Amherst, Amherst, MA, 01003, USA.
| | - Timothy Johns
- School of Human Nutrition, McGill University, Ste. Anne de Bellevue, QC, H9X 3V9, Canada.
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Piao CH, Fan YJ, Nguyen TV, Song CH, Jeong HJ, Chai OH. Effects of thermal therapy combined with blue light-emitting diode irradiation on trimellitic anhydride-induced acute contact hypersensitivity mouse model. J DERMATOL TREAT 2020; 33:1343-1350. [PMID: 32783679 DOI: 10.1080/09546634.2020.1809622] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
BACKGROUD The biological effect of phototherapy, which involves using visible light for disease treatment, has attracted recent attention, especially in dermatological practice. Light-emitting diode (LED) irradiation increases dermal collagen level and reduces inflammation. It has been suggested that thermal therapy and LED irradiation can modulate inflammatory processes. However, little is known about the molecular mechanism of the anti-inflammatory effects of thermal therapy and LED irradiation. OBJECTIVE This study was to determine the anti-inflammatory effect of thermal therapy combined with LED irradiation on trimellitic anhydride (TMA)-induced acute contact hypersensitivity (CHS) mouse model. METHODS Twenty-four BALB/c mice were randomly divided into the following groups: Vehicle group, TMA group, TMA + alternating thermal therapy group (Alternating group), and TMA + alternating + LED group (LED group). Ear swelling was measured based on the thickness of ear before and after each TMA challenge. Vascular permeability was evaluated by the extravasation of Evans blue dye. Serum IgE level, Th1/Th2/Th17 cytokines, and related transcription factors were measured using ELISA kits, and histological examination was illustrated in ear tissue. RESULTS The LED group showed reduction in ear swelling response, vascular permeability, serum IgE levels, Th2/Th17 cytokine levels, and inflammatory cell infiltration. Moreover, the LED group showed increased Th1 cytokine levels. CONCLUSIONS These results indicate that thermal therapy combined with LED irradiation alleviated TMA-induced acute CHS in the mouse model. Thermal therapy and phototherapy should be considered as a novel therapeutic tool for the treatment of skin inflammation.
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Affiliation(s)
- Chun Hua Piao
- Department of Anatomy, Jeonbuk National University Medical School, Jeonju, Republic of Korea
| | - Yan Jing Fan
- Department of Anatomy, Jeonbuk National University Medical School, Jeonju, Republic of Korea
| | - Thi Van Nguyen
- Department of Anatomy, Jeonbuk National University Medical School, Jeonju, Republic of Korea
| | - Chang Ho Song
- Department of Anatomy, Jeonbuk National University Medical School, Jeonju, Republic of Korea.,Institute for Medical Sciences, Jeonbuk National University, Jeonju, Republic of Korea
| | - Hwan-Jeong Jeong
- Department of Nuclear Medicine, Molecular Imaging and Therapeutic Medicine Research Center, Research Institute of Clinical Medicine, Jeonbuk National University Medical School and Hospital, Jeonju, Republic of Korea.,Biomedical Research Institute, Jeonbuk National University Hospital, Jeonju, Republic of Korea
| | - Ok Hee Chai
- Department of Anatomy, Jeonbuk National University Medical School, Jeonju, Republic of Korea.,Institute for Medical Sciences, Jeonbuk National University, Jeonju, Republic of Korea.,Biomedical Research Institute, Jeonbuk National University Hospital, Jeonju, Republic of Korea
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Wang C, Li L, Jiang J, Li L, Li J, Xu C, Jin S, Zhu L, Yan G. Pterostilbene Inhibits FcεRI Signaling through Activation of the LKB1/AMPK Pathway in Allergic Response. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2020; 68:3456-3465. [PMID: 32096633 DOI: 10.1021/acs.jafc.9b07126] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
In this study, the role and mechanism of pterostilbene (Pts) in mast cell degranulation in vitro and in vivo were investigated. The results showed that Pts inhibited mast cell-mediated local passive allergic reactions in mice. In addition, treatment with Pts reduced both histamine release and calcium influx in rat peritoneal mast cells and RBL-2H3 cells and reduced IgE-mediated mast cell activation. Furthermore, the mechanism underlying Pts inhibition of mast cell signaling was probed via studying the effects of Pts on liver kinase B1 (LKB1), including the use of the LKB1 activator metformin and siRNA knockdown of LKB1. The data showed that Pts reduced the release of inflammatory mediators such as tumor necrosis factor-α, interleukin-6, leukotriene C4, and prostaglandin D2 in mast cells by activating the LKB1/adenosine monophosphate (AMP)-activated protein kinase (AMPK) signaling pathway. Furthermore, Pts inhibited phosphorylation of FcεRI and FcεRI-mediated degranulation in RBL-2H3 cells. These effects were attenuated after LKB1 knockdown. Taken together, Pts could inhibit FcεRI signaling through activation of the LKB1/AMPK signaling pathway in IgE-mediated mast cell activation. Thus, Pts might be an effective therapeutic agent for mast cell-mediated allergic diseases.
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Affiliation(s)
- Chongyang Wang
- Department of Anatomy, Histology and Embryology, Medical College, Yanbian University, Yanji 133002, P. R. China
- Jilin Key Laboratory of Anaphylactic Disease, Yanbian University, Yanji 133000, P. R. China
| | - Liangchang Li
- Department of Anatomy, Histology and Embryology, Medical College, Yanbian University, Yanji 133002, P. R. China
- Jilin Key Laboratory of Anaphylactic Disease, Yanbian University, Yanji 133000, P. R. China
| | - Jingzhi Jiang
- Department of Anatomy, Histology and Embryology, Medical College, Yanbian University, Yanji 133002, P. R. China
- Jilin Key Laboratory of Anaphylactic Disease, Yanbian University, Yanji 133000, P. R. China
| | - Li Li
- Department of Anatomy, Histology and Embryology, Medical College, Yanbian University, Yanji 133002, P. R. China
- Jilin Key Laboratory of Anaphylactic Disease, Yanbian University, Yanji 133000, P. R. China
| | - Junfeng Li
- Department of Anatomy, Histology and Embryology, Medical College, Yanbian University, Yanji 133002, P. R. China
- Jilin Key Laboratory of Anaphylactic Disease, Yanbian University, Yanji 133000, P. R. China
| | - Chang Xu
- Department of Anatomy, Histology and Embryology, Medical College, Yanbian University, Yanji 133002, P. R. China
- Jilin Key Laboratory of Anaphylactic Disease, Yanbian University, Yanji 133000, P. R. China
| | - Shan Jin
- Jilin Key Laboratory of Anaphylactic Disease, Yanbian University, Yanji 133000, P. R. China
- Department of Dermatology, Yanbian University Hospital, Yanji 133002, P. R. China
| | - Lianhua Zhu
- Jilin Key Laboratory of Anaphylactic Disease, Yanbian University, Yanji 133000, P. R. China
- Department of Dermatology, Yanbian University Hospital, Yanji 133002, P. R. China
| | - Guanghai Yan
- Department of Anatomy, Histology and Embryology, Medical College, Yanbian University, Yanji 133002, P. R. China
- Jilin Key Laboratory of Anaphylactic Disease, Yanbian University, Yanji 133000, P. R. China
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Trigonelline: An alkaloid with anti-degranulation properties. Mol Immunol 2020; 118:201-209. [DOI: 10.1016/j.molimm.2019.12.020] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2019] [Revised: 12/24/2019] [Accepted: 12/26/2019] [Indexed: 01/23/2023]
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Balkrishna A, Ranjan R, Sakat SS, Sharma VK, Shukla R, Joshi K, Devkar R, Sharma N, Saklani S, Pathak P, Kumari P, Agarwal VR. Evaluation of polyherbal ayurvedic formulation 'Peedantak Vati' for anti-inflammatory and analgesic properties. JOURNAL OF ETHNOPHARMACOLOGY 2019; 235:361-374. [PMID: 30703493 DOI: 10.1016/j.jep.2019.01.028] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2017] [Revised: 08/19/2018] [Accepted: 01/26/2019] [Indexed: 06/09/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Peedantak Vati (PV) is a polyherbal ayurvedic formulation, which is regularly prescribed by the ayurvedic practitioner for the inflammatory disorders and joints pain in India. It is composed of 23 different herbs and minerals, described in ayurvedic text for their anti-inflammatory and analgesic properties. AIM OF THE STUDY To investigate anti-inflammatory and anti-nociceptive potential of 'Peedantak Vati' using in vitro and in vivo methods. MATERIALS AND METHODS In-vitro anti-inflammatory activity of PV was studied by estimating nitric oxide (NO) and LPS-induced pro-inflammatory cytokines IL-6 and TNF-α, using murine macrophage RAW264.7 and human monocyte THP-1 cell lines. PV's anti-inflammatory potential was studied in vivo using carrageenan-induced rat paw edema model. Similarly, anti-nociceptive property of PV was evaluated using hot plate, tail flick, formalin and writhing tests on CD-1 mice. Phytochemical profiling of hydro-alcoholic extract of PV was done using HPLC and HPTLC techniques to identify different marker compounds. These identified marker compounds were confirmed using LC-MS/MS analysis. RESULTS In vitro results strongly suggest that, PV significantly (p < 0.001) inhibited NO release and LPS-stimulated pro-inflammatory cytokines IL-6 and TNF-α, in murine RAW264.7 and human THP-1 cells. Further, PV demonstrated significant (p < 0.05) anti-inflammatory activity at different time points after carrageenan injection with maximum effect at 2 h (40.4 ± 5.2% at 400 mg/kg). Similarly, PV significantly (p < 0.05) decreased nociceptive pain, studied using hot plate, tail flick, formalin and writhing tests. Moreover, HPLC and HPTLC methods were developed for the standardization of PV. Five marker phytocompounds viz. rutin, caffeic acid, colchicine, withaferin A and curcumin were identified and quantified by HPLC and HPTLC methods. The presence of these phytoconstituents was confirmed by LC-MS/MS analysis. CONCLUSION The findings of the study strongly suggest that, the polyherbal ayurvedic formulation 'Peedantak Vati' possesses remarkable anti-inflammatory and analgesic property, providing potent alternative for currently available allopathic medicines such as non steroidal anti-inflammatory drugs (NSAIDs).
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Affiliation(s)
- Acharya Balkrishna
- Drug Discovery and Development Division, Patanjali Research Institute, Haridwar, India
| | - Ravikant Ranjan
- Drug Discovery and Development Division, Patanjali Research Institute, Haridwar, India.
| | - Sachin S Sakat
- Drug Discovery and Development Division, Patanjali Research Institute, Haridwar, India
| | - Vinay K Sharma
- Drug Discovery and Development Division, Patanjali Research Institute, Haridwar, India
| | - Ravikant Shukla
- Drug Discovery and Development Division, Patanjali Research Institute, Haridwar, India
| | - Khemraj Joshi
- Drug Discovery and Development Division, Patanjali Research Institute, Haridwar, India
| | - Raviraj Devkar
- Drug Discovery and Development Division, Patanjali Research Institute, Haridwar, India
| | - Niti Sharma
- Drug Discovery and Development Division, Patanjali Research Institute, Haridwar, India
| | - Sonia Saklani
- Drug Discovery and Development Division, Patanjali Research Institute, Haridwar, India
| | - Prateek Pathak
- Drug Discovery and Development Division, Patanjali Research Institute, Haridwar, India
| | - Pratima Kumari
- Drug Discovery and Development Division, Patanjali Research Institute, Haridwar, India
| | - Veena R Agarwal
- Drug Discovery and Development Division, Patanjali Research Institute, Haridwar, India
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Biswas S, Ghosh G, Dubey V. Modulation of sodium arsenite-induced Toxicity in mice by ethanolic seed extract of Trigonella foenum graecum. Pharmacogn Mag 2019. [DOI: 10.4103/pm.pm_518_18] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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Owczarczyk-Saczonek A, Lahuta LB, Ligor M, Placek W, Górecki RJ, Buszewski B. The Healing-Promoting Properties of Selected Cyclitols-A Review. Nutrients 2018; 10:nu10121891. [PMID: 30513929 PMCID: PMC6316775 DOI: 10.3390/nu10121891] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2018] [Revised: 11/19/2018] [Accepted: 11/29/2018] [Indexed: 12/16/2022] Open
Abstract
INTRODUCTION Myo-inositol and its derivatives cyclitols play an important role in the processes of cell regulation, signal transduction, osmoregulation, and ion channel physiology, and are a component of the cell membrane. Free cyclitols present in food or released during the degradation of galactosyl cyclitols by bacteria (in digestive tract) show some physiological benefits. AIM The aim of this paper is to present and analyze the documented data about curative and healing properties of cyclitols. RESULTS AND DISCUSSION Cyclitols are well known compounds in the treatment of an accompanied diabetes insulin resistance, and also obesity and polycystic ovarian syndrome. d-chiro-Inositol deficiency exacerbates insulin resistance in the liver, muscles, and fat, while depletion of myo-inositol results in the development of diabetic complications. Cyclitols are successfully applied in treatment of polycystic ovarian syndrome, simultaneous are observed effective reducing of BMI, improving the hormonal profile, and increasing fertility. Moreover, cyclitols have anti-atherogenic, anti-oxidative, anti-inflammatory, and anti-cancer properties. CONCLUSION The properties of cyclitols may be a good therapeutic option in the reduction of metabolically induced inflammation. Due to well drugs tolerance and low toxicity of these compounds, cyclitols are recommend for pregnant women and also for children. Another advantage is their widespread presence and easy availability, which encourages their use in medicine.
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Affiliation(s)
- Agnieszka Owczarczyk-Saczonek
- Department of Dermatology, Sexually Transmitted Diseases and Clinical Immunology, University of Warmia and Mazury in Olsztyn, 10-229 Olsztyn, Poland.
| | - Lesław Bernard Lahuta
- Department of Plant Physiology, Genetics and Biotechnology, University of Warmia and Mazury in Olsztyn, 10-229 Olsztyn, Poland.
| | - Magdalena Ligor
- Department of Environmental Chemistry and Bioanalytics, Faculty of Chemistry, Nicolaus Copernicus University, 87-100 Torun, Poland.
| | - Waldemar Placek
- Department of Dermatology, Sexually Transmitted Diseases and Clinical Immunology, University of Warmia and Mazury in Olsztyn, 10-229 Olsztyn, Poland.
| | - Ryszard Józef Górecki
- Department of Plant Physiology, Genetics and Biotechnology, University of Warmia and Mazury in Olsztyn, 10-229 Olsztyn, Poland.
| | - Bogusław Buszewski
- Department of Environmental Chemistry and Bioanalytics, Faculty of Chemistry, Nicolaus Copernicus University, 87-100 Torun, Poland.
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Pansare AV, Kulal DK, Shedge AA, Patil VR. hsDNA groove binding, photocatalytic activity, and in vitro breast and colon cancer cell reducing function of greener SeNPs. Dalton Trans 2018; 45:12144-55. [PMID: 27402164 DOI: 10.1039/c6dt01457g] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Selenium nanoparticles (SeNPs) have attracted great attention because of their superior optical properties and wide utilization in biological and biomedical studies. This paper reports an environmentally benign procedure of greener monodispersible SeNP synthesis using the reducing power of Trigonella foenum-graecum extract, characterization and their protective effect against unfolded (Herring sperm DNA) hsDNA. We investigated the anti-cancer activity of SeNPs against MCF-7, MDA MB 435 and COLO-205 cells. The photocatalytic activity of SeNPs was investigated for the degradation of a Sunset Yellow FCF (SYFCF) dye using ultraviolet-B light. The reduction of the Se ion to SeNPs was monitored by ultraviolet-visible spectroscopy (UV-vis). The size and morphology of the SeNPs were characterized by high resolution transmission electron microscopy (HRTEM), X-ray diffraction (XRD), and Dynamic Light Scattering (DLS). The SeNPs were stable, and the diameter was homogeneous at around 5-12 nm. Interactions of various concentrations of SeNPs with hsDNA were systematically investigated by UV-vis, fluorescence, circular dichroism (CD), polarimetry and FTIR spectroscopy under physiological conditions. The results from fluorescence spectroscopy indicated that SeNPs quenched the fluorescence intensity of hsDNA with increasing concentrations. The modified Stern-Volmer quenching rate constant Ksv, binding constant K and binding sites n at different temperatures and the corresponding thermodynamic parameters ΔH°, ΔG° and ΔS° were calculated. Hoechst 33258 and methyl green (MG) site markers, melting experiment (Tm), viscosity measurements and sequence specificity verification by DNA bases clarified that SeNPs bind to hsDNA via a groove site. The rate of photocatalytic degradation of the SYFCF dye in the presence and absence of photocatalysts (SeNPs) was studied using UV-vis, the results showed appreciable degradation of the SYFCF dye. Our results suggested that nano Se can be used as a promising selenium species with potential application in cancer treatment. These nanoparticles were found to be the most active cytotoxic agent prepared in a new green synthesis manner, causing >50% inhibition of MCF-7, MDA MB-435 and COLO-205 cell proliferation at concentrations <10(-7) M. Hence these SeNPs could be recognized as promising materials for biomedical applications.
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Affiliation(s)
- Amol V Pansare
- Department of Chemistry, University of Mumbai, Santacruz (E), Mumbai 400098, India.
| | - Dnyaneshwar K Kulal
- Department of Chemistry, University of Mumbai, Santacruz (E), Mumbai 400098, India.
| | - Amol A Shedge
- Department of Chemistry, University of Mumbai, Santacruz (E), Mumbai 400098, India.
| | - Vishwanath R Patil
- Department of Chemistry, University of Mumbai, Santacruz (E), Mumbai 400098, India.
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Fenugreek Compound (N55) Lowers Plasma Glucose through the Enhancement of Response of Physiological Glucagon-like peptide-1. Sci Rep 2017; 7:12265. [PMID: 28947828 PMCID: PMC5613011 DOI: 10.1038/s41598-017-12290-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2016] [Accepted: 09/04/2017] [Indexed: 12/01/2022] Open
Abstract
Glucagon-like peptide-1 (GLP-1) receptor (GLP-1R) analogues are approved for treating type 2 diabetes, but are known to activate GLP-1R signaling globally and constitutively. Active compound N55, previously isolated from fenugreek, enhances the potency of GLP-1 without activating GLP-1R. Here we investigated if N55 lowers plasma glucose base on physiological levels of GLP-1. N55 was found to dose-dependently lower plasma glucose in non-fasted mice but not in the fasted mice, with the effect attenuated by GLP-1R antagonist exendin-(9–39) (Ex-9). On the other hand, when co-administered with dipeptidyl peptidase-IV (DPP4) -resistant [Aib8]-GLP-1(7–36) amide (GLP-1′), hypoglycemic response to N55 was observed in the fasted mice. This enhancement was also found to display dose dependency. N55 enhancement of the hypoglycemic and insulinotropic action of GLP-1′ was eliminated upon Ex-9 treatment. Both exendin-4 (Ex-4) and DPP4-resistant GLP-1 mutant peptide ([Aib8, E22, E30]-GLP-1(7–36) amide) activated GLP-1R and improved glucose tolerance but the enhancement effect of N55 was not observed in vivo or in vitro. In conclusions, N55 lowers plasma glucose according to prandial status by enhancing the response of physiological levels of GLP-1 and is much less likely to disrupt tight regulation of GLP-1R signaling as compare to GLP-1 analogues.
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Assad T, Khan RA. Effect of methanol extract of Trigonella foenum-graecum L. seeds on anxiety, sedation and motor coordination. Metab Brain Dis 2017; 32:343-349. [PMID: 27639708 DOI: 10.1007/s11011-016-9914-y] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/14/2016] [Accepted: 09/11/2016] [Indexed: 11/25/2022]
Abstract
Currently available anxiolytics cause numerous adverse effects and show craving and tolerance during long term treatment. Currently traditional medicines have been re-evaluated widely through work on various plant species. Numerous plants in traditional system show pharmacological activity with unlimited prospective for therapeutic use. Hence we planned to evaluate the effect of methanol extract of T. foenum-graecum L. seeds on anxiety, sedation and motor coordination in mice at different doses following 15 days of oral feeding. Effect on anxiety was assessed by Hole board test and Light and Dark transition models.Phenobarbitone induced sleeping time and Rota rod test were performed to assess effect on sedation and motor coordination. In Hole board test, T. foenum-graecum L. seeds decreased the number of head dips in mice at all the three doses. In Light and Dark transition model, T. foenum-graecum L. seeds increased the period spent in the light box and the number of moves among the two compartments at 100 and 200 mg/kg as compared to control animals. In phenobarbitone induced sleeping time, T. foenum-graecum L. seeds did not reveal any sedative effect. In Rota rod test, extract exhibited significant skeletal muscle relaxant effect at 200 mg/kg (at 90 min) as compared to the control animals. Results of our study shows significant antianxiety effects of T. foenum-graecum L. seeds and may also recommend improved adverse effect profile as compared to diazepam.
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Affiliation(s)
- Tahira Assad
- Department of pharmacology, Bahria University Medical and Dental College, Karachi, Pakistan
| | - Rafeeq Alam Khan
- Department of Pharmacology, Faculty of Pharmacy & Pharmaceutical Sciences, University of Karachi, Karachi, 75270, Pakistan.
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Jung Y, Kim B, Ryu MH, Kim H. Chinese medicines reported to have effects on contact dermatitis in the last 20 years. Chin J Integr Med 2017; 24:64-71. [DOI: 10.1007/s11655-016-2535-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2014] [Indexed: 12/19/2022]
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18
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Arroyo-Acevedo J, Franco-Quino C, Ruiz-Ramirez E, Chávez-Asmat R, Anampa-Guzmán A, Raéz-González E, Cabanillas-Coral J. Antiallergic effect of the atomized extract of rhizome of Curcuma longa, flowers of Cordia lutea and leaves of Annona muricata. Ther Clin Risk Manag 2016; 12:1643-1647. [PMID: 27877047 PMCID: PMC5110203 DOI: 10.2147/tcrm.s115786] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Introduction Allergies are a problem that greatly affects the population, and hence the use of antiallergic medications is fairly widespread. However, these drugs have many adverse effects. The use of medicinal plants could be an option, but they need to be evaluated. Objective This study was designed to evaluate the antiallergic effect of the atomized extract of rhizome of Curcuma longa, flowers of Cordia lutea, and leaves of Annona muricata. Materials and methods Twenty-four New Zealand white albino rabbits were randomized into 2 groups. Group A received the atomized extract diluted in physiological saline (APS) and group B received it diluted in Freund’s adjuvant (FA). Then, the back of each rabbit was divided into 4 quadrants. The A-I quadrant received only physiological saline. The A-I quadrants of each rabbit conformed the PS group. The following 3 quadrants received the APS in 10 μg/mL, 100 μg/mL, and 1,000 μg/mL, respectively. The B-I quadrant received only FA. The B-I quadrants of each rabbit conformed the FA group. The following 3 quadrants received the AFA in 10 μg/mL, 100 μg/mL, and 1,000 μg/mL, respectively. The occurrence of erythema and edema was recorded according to the Draize scoring system and the primary irritation index. After 72 hours, biopsies were performed. Results The AFA group presented significantly less erythema and edema compared to the FA group (P<0.05). The histopathologic evaluation at 72 hours showed normal characteristics in the APS group. Conclusion Considering the clinical and histopathological signs, we conclude that the administration of the atomized extract of rhizome of C. longa, flowers of C. lutea, and leaves of A. muricata lacks antigenic effect but could have an antiallergenic effect in a model of dermal irritation in rabbits.
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Affiliation(s)
- Jorge Arroyo-Acevedo
- Pharmacology Laboratory, Institute of Clinical Research, National University of San Marcos, Lima, Peru; Institute of Clinical Research, National University of San Marcos, Lima, Peru; Institute of Pathology, Faculty of Medicine, National University of San Marcos, Lima, Peru
| | - Cesar Franco-Quino
- Laboratory of Pharmacology and Physiology, Faculty of Dentistry, National University of San Marcos, Lima, Peru; Graduate Unit, Faculty of Pharmacy and Biochemistry, National University of San Marcos, Lima, Peru
| | - Eliberto Ruiz-Ramirez
- Laboratory of Pharmacology and Physiology, Faculty of Dentistry, National University of San Marcos, Lima, Peru; Graduate Unit, Faculty of Pharmacy and Biochemistry, National University of San Marcos, Lima, Peru
| | - Roberto Chávez-Asmat
- Pharmacology Laboratory, Institute of Clinical Research, National University of San Marcos, Lima, Peru; Association for the Development of Student Research in Health Sciences (ADIECS), Lima, Peru
| | - Andrea Anampa-Guzmán
- School of Human Medicine, Faculty of Medicine, National University of San Marcos, Lima, Peru; Sociedad Científica de San Fernando (SCSF), Lima, Peru
| | - Ernesto Raéz-González
- Institute of Pathology, Faculty of Medicine, National University of San Marcos, Lima, Peru
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Therapeutic effect of ethyl acetate extract from Asparagus cochinchinensis on phthalic anhydride-induced skin inflammation. Lab Anim Res 2016; 32:34-45. [PMID: 27051441 PMCID: PMC4816995 DOI: 10.5625/lar.2016.32.1.34] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2016] [Revised: 02/28/2016] [Accepted: 03/03/2016] [Indexed: 01/22/2023] Open
Abstract
Asparagus cochinchinensis has been used to treat various diseases including fever, cough, kidney disease, breast cancer, inflammatory disease and brain disease, while IL-4 cytokine has been considered as key regulator on the skin homeostasis and the predisposition toward allergic skin inflammation. However, few studies have investigated its effects and IL-4 correlation on skin inflammation to date. To quantitatively evaluate the suppressive effects of ethyl acetate extracts of A. cochinchinensis (EaEAC) on phthalic anhydride (PA)-induced skin inflammation and investigate the role of IL-4 during their action mechanism, alterations in general phenotype biomarkers and luciferase-derived signals were measured in IL-4/Luc/CNS-1 transgenic (Tg) mice with PA-induced skin inflammation after treatment with EaEAC for 2 weeks. Key phenotype markers including lymph node weight, immunoglobulin E (IgE) concentration, epidermis thickness and number of infiltrated mast cells were significantly decreased in the PA+EaEAC treated group compared with the PA+Vehicle treated group. In addition, expression of IL-1β and TNF-α was also decreased in the PA+EaEAC cotreated group, compared to PA+Vehicle treated group. Furthermore, a significant decrease in the luciferase signal derived from IL-4 promoter was detected in the abdominal region, submandibular lymph node and mesenteric lymph node of the PA+EaEAC treated group, compared to PA+Vehicle treated group. Taken together, these results suggest that EaEAC treatment could successfully improve PA-induced skin inflammation of IL-4/Luc/CNS-1 Tg mice, and that IL-4 cytokine plays a key role in the therapeutic process of EaEAC.
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Fan L, He C, Jiang L, Bi Y, Dong Y, Jia Y. Brief analysis of causes of sensitive skin and advances in evaluation of anti-allergic activity of cosmetic products. Int J Cosmet Sci 2015; 38:120-7. [DOI: 10.1111/ics.12283] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2015] [Accepted: 09/28/2015] [Indexed: 11/30/2022]
Affiliation(s)
- L. Fan
- Beijing Key Laboratory of Plant Resources Research and Development; School of Science; Beijing Technology and Business University; Beijing 100048 China
| | - C. He
- Beijing Key Laboratory of Plant Resources Research and Development; School of Science; Beijing Technology and Business University; Beijing 100048 China
| | - L. Jiang
- Proya Cosmetic Corporation Limited; Hangzhou 310012 China
| | - Y. Bi
- Proya Cosmetic Corporation Limited; Hangzhou 310012 China
| | - Y. Dong
- Beijing Key Laboratory of Plant Resources Research and Development; School of Science; Beijing Technology and Business University; Beijing 100048 China
| | - Y. Jia
- Beijing Key Laboratory of Plant Resources Research and Development; School of Science; Beijing Technology and Business University; Beijing 100048 China
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King K, Lin NP, Cheng YH, Chen GH, Chein RJ. Isolation of Positive Modulator of Glucagon-like Peptide-1 Signaling from Trigonella foenum-graecum (Fenugreek) Seed. J Biol Chem 2015; 290:26235-48. [PMID: 26336108 DOI: 10.1074/jbc.m115.672097] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2015] [Indexed: 12/12/2022] Open
Abstract
The glucagon-like peptide-1 receptor (GLP-1R) is expressed in many tissues and has been implicated in diverse physiological functions, such as energy homeostasis and cognition. GLP-1 analogs are approved for treatment of type 2 diabetes and are undergoing clinical trials for other disorders, including neurodegenerative diseases. GLP-1 analog therapies maintain chronically high plasma levels of the analog and can lead to loss of spatiotemporal control of GLP-1R activation. To avoid adverse effects associated with current therapies, we characterized positive modulators of GLP-1R signaling. We screened extracts from edible plants using an intracellular cAMP biosensor and GLP-1R endocytosis assays. Ethanol extracts from fenugreek seeds enhanced GLP-1 signaling. These seeds have previously been found to reduce glucose and glycated hemoglobin levels in humans. An active compound (N55) with a new N-linoleoyl-2-amino-γ-butyrolactone structure was purified from fenugreek seeds. N55 promoted GLP-1-dependent cAMP production and GLP-1R endocytosis in a dose-dependent and saturable manner. N55 specifically enhanced GLP-1 potency more than 40-fold, but not that of exendin 4, to stimulate cAMP production. In contrast to the current allosteric modulators that bind to GLP-1R, N55 binds to GLP-1 peptide and facilitates trypsin-mediated GLP-1 inactivation. These findings identify a new class of modulators of GLP-1R signaling and suggest that GLP-1 might be a viable target for drug discovery. Our results also highlight a feasible approach for screening bioactive activity of plant extracts.
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Affiliation(s)
| | | | | | - Gao-Hui Chen
- Molecular Biology, Academia Sinica, Taipei 11529, Taiwan
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Immunosuppression of the trimellitic anhydride-induced th2 response by novel nonanatural products mixture in mice. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2013; 2013:748123. [PMID: 24348718 PMCID: PMC3852580 DOI: 10.1155/2013/748123] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/29/2013] [Accepted: 09/26/2013] [Indexed: 11/17/2022]
Abstract
Many natural dietary products prevent or cure allergic inflammation; however, the ability of mixtures of these natural medicinals to suppress allergic skin inflammation is unknown. We examined the inhibitory effects of nonanatural products mixture (NPM-9), which provides immunoregulatory activation, on Th2-mediated skin allergic inflammation. Oral administration of NPM-9 in mice reduced ear thickness and specific IgE production in trimellitic anhydride- (TMA-)induced contact hypersensitivity (CHS). NPM-9 also suppressed IL-4 and IL-1β production in splenocytes but prevented only TMA-induced IL-1β production in inflamed ears. To characterize the mechanism of this effect, we examined NPM-9 immunosuppression on an OVA-induced Th2 allergic state. Oral administration of NPM-9 inhibited Th2-mediated serum IgE overproduction. NPM-9 also downregulated the polarized Th2 response, whereas it upregulated Th1 response in splenocytes. These data suggest that NPM-9 may be a useful therapeutic agent for allergic inflammatory diseases through its suppression of the Th2-mediated allergic response.
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Bae MJ, Shin HS, Chai OH, Han JG, Shon DH. Inhibitory effect of unicellular green algae (Chlorella vulgaris) water extract on allergic immune response. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2013; 93:3133-3136. [PMID: 23426977 DOI: 10.1002/jsfa.6114] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2013] [Revised: 02/06/2013] [Accepted: 02/20/2013] [Indexed: 06/01/2023]
Abstract
BACKGROUND Chlorella is used as a functional food in East Asia and has been shown to enhance immune system function. However, there has been no direct evidence of the suppressive effect of a hot water extract of Chlorella vulgaris (CVE) on histamine-mediated allergic responses. RESULTS The antihistamine activity of CVE was analysed using rat peritoneal mast cells (RPMCs) stimulated by compound 48/80. For in vivo verification, ovalbumin (OVA)-immunised BALB/c mice were treated with CVE orally. Serum immunoglobulin E (IgE) levels and splenocyte cytokine levels were determined by enzyme-linked immunosorbent assay (ELISA). CVE prevented histamine release through degranulation of mast cells by blocking the uptake of extracellular Ca²⁺ into RPMCs. Moreover, CVE administration inhibited serum IgE overproduction by OVA via induction of T helper 1 (Th1) skewing that was dependent on interferon-γ (IFN-γ) and interleukin 12 (IL-12) secretion. CONCLUSION The results of this study clearly demonstrate that CVE acts as an antiallergic dietary agent by suppressing histamine release via its enhancive effect on Th1-related responses.
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Affiliation(s)
- Min-Jung Bae
- Division of Metabolism and Functionality Research, Korea Food Research Institute, 1201-62, Anyangpangyo-ro, Bundang-gu, Seognam-si, Kyeonggi-do, 463-746, Republic of Korea
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