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Proteomic analysis of Plasmodium berghei in the ring phase during in vivo antiparasitic treatment with kramecyne. Exp Parasitol 2022; 238:108262. [PMID: 35561785 DOI: 10.1016/j.exppara.2022.108262] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Revised: 03/15/2022] [Accepted: 04/18/2022] [Indexed: 11/20/2022]
Abstract
Malaria is a parasitic disease of global importance due to its high annual death toll. The treatment for this infection is difficult for the increase in the populations of parasites resistant to the existing medicines, the development of new antimalarials is urgent needed. Several products developed for the control of malaria from herbalist have had a profound impact, for example, quinine obtained from the bark of the cinchona tree and recently those derived from artemisinin, whose discovery was the reason for the awarding of the 2015 Nobel Prize. The aim of the present study was to evaluate a compound named kramecyne extracted of "chayotillo" (Krameria cystisoides) plant used by the antiparasitic effect against some blood and intestinal protozoa (Giardia duodenalis y Trypanosoma cruzi). In addition is using for the treatment of inflammatory diseases. Measuring parasitaemia at different times, it was observed that in mice treated with kramecyne, it reached only 14% of parasitaemia at 7 days with a dose of 15 mg/kg, using chloroquine as a control drug, because it has not been demonstrated that parasites that infect rodents have developed resistance against this drug. Our results showed that kramecyne decreases the expression of parasite proteins that participate in biological processes, such as invasion, cytoadherence, pathogenicity and energy metabolism. With these results, it is proposed that this compound has repercussions on the metabolism of the parasite and could be useful for use as an antimalarial.
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Joshi J, Bandral C, Manchanda RK, Khurana A, Nayak D, Kaur S. The Effect of Iodium 30c on Experimental Visceral Leishmaniasis. HOMEOPATHY 2020; 109:213-223. [PMID: 32823292 DOI: 10.1055/s-0040-1713361] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
BACKGROUND Leishmaniasis is one of several neglected tropical diseases that warrant serious attention. A disease of socio-economically poor people, it demands safer and cheaper drugs that help to overcome the limitations faced by the existing anti-leishmanials. Complementary or traditional medicines might be a good option, with an added advantage that resistance may not develop against these drugs. Thus, the present investigation was performed to evaluate the anti-leishmanial efficacy of an ultra-diluted homeopathic medicine (Iodium 30c) in experimental visceral leishmaniasis (VL). METHODS Compliant with strict ethical standards in animal experimentation, the study was performed in-vivo in inbred BALB/c mice which were injected intravenously with 1 × 107 promastigotes of Leishmania donovani before (therapeutic) or after (prophylactic) treatment with Iodium 30c for 30 days. In other groups of mice (n = 6 per group), amphotericin B served as positive control, infected animals as the disease control, while the naïve controls included normal animals; animals receiving only Iodium 30c or Alcohol 30c served as sham controls. The anti-leishmanial efficacy was assessed by determining the hepatic parasite load and analysing percentages of CD4+ and CD8+ T cells. Biochemical analysis and histological studies were performed to check any toxicities. RESULTS Iodium-treated animals showed a significantly reduced parasite load (to 1503 ± 39 Leishman Donovan Units, LDU) as compared with the infected controls (4489 ± 256 LDU) (p < 0.05): thus, the mean therapeutic efficacy of Iodium 30c was 66.5%. In addition, the population of CD4+ and CD8+ T cells was significantly increased (p < 0.05) after treatment. No toxicity was observed, as evidenced from biochemical and histopathological studies of the liver and kidneys. Efficacy of Iodium 30c prophylaxis was 58.3%, while the therapeutic efficacy of amphotericin B was 85.9%. CONCLUSION This original study has shown that Iodium 30c had significant impact in controlling parasite replication in experimental VL, though the effect was less than that using standard pharmaceutical treatment.
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Affiliation(s)
- Jyoti Joshi
- Department of Zoology, Panjab University, Chandigarh, India
| | - Chetna Bandral
- Department of Zoology, Panjab University, Chandigarh, India
| | - Raj Kumar Manchanda
- Central Council for Research in Homeopathy, Ministry of AYUSH, Government of India, New Delhi, India
| | - Anil Khurana
- Central Council for Research in Homeopathy, Ministry of AYUSH, Government of India, New Delhi, India
| | - Debadatta Nayak
- Central Council for Research in Homeopathy, Ministry of AYUSH, Government of India, New Delhi, India
| | - Sukhbir Kaur
- Department of Zoology, Panjab University, Chandigarh, India
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Rodrigues de Santana F, de Paula Coelho C, Cardoso TN, Perez Hurtado EC, Roberti Benites N, Dalastra Laurenti M, Villano Bonamin L. Modulation of inflammation response to murine cutaneous Leishmaniasis by homeopathic medicines: Antimonium crudum 30cH. HOMEOPATHY 2018; 103:264-74. [DOI: 10.1016/j.homp.2014.08.006] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2014] [Revised: 07/25/2014] [Accepted: 08/27/2014] [Indexed: 12/11/2022]
Abstract
Background: Leishmaniasis is a zoonotic disease caused by protozoan parasites of the mononuclear phagocytic system. The modulation activity of these cells can interfere in the host/parasite relationship and influences the prognosis.Methods: We evaluated the effects of the homeopathic preparation Antimonium crudum 30cH on experimental infection induced by Leishmania (L.) amazonensis. Male Balb/c mice were inoculated with 2 × 106 Leishmania (L.) amazonensis promastigotes into the footpad and, after 48 h (acute phase) or 60 days (chronic phase), cell population of lymphocytes and phagocytes present in the peritoneal washing fluid and spleen were analyzed by flow cytometry and histopathology, with histometry of the subcutaneous primary lesion, local lymph node and spleen. Immunohistochemistry was performed to quantify CD3 (T lymphocyte), CD45RA (B lymphocyte) and CD11b (phagocytes) positive cells.Results: In treated mice, during the acute phase, there was significant increase of the macroscopic lesion, associated to inflammatory edema, as well increase in the number of free amastigotes and B lymphocytes inside the lesion. Increase of B lymphocytes (predominantly B-2 cells) was also seen in the local lymph node, spleen and peritoneum. In the chronic phase, the inflammatory process in the infection focus was reduced, with reduced phagocyte migration and peritoneal increase of B-1a cells (precursors of B-2 immunoglobulin producers cells) and T CD8+ cells.Conclusion: The treatment of mice with Antimonium crudum 30cH induced a predominantly B cell pattern of immune response in Leishmania (L.) amazonensis experimental infection, alongside the increase of free amastigote forms number in the infection site. The clinical significance of this study is discussed, further studies are suggested.
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Affiliation(s)
- Fabiana Rodrigues de Santana
- Graduate Program in Environmental and Experimental Pathology, Research Center of University Paulista, Rua Dr Bacelar, 1212 – 4th Floor, 04026-002 São Paulo, Brazil
| | - Cidéli de Paula Coelho
- Graduate Program in Environmental and Experimental Pathology, Research Center of University Paulista, Rua Dr Bacelar, 1212 – 4th Floor, 04026-002 São Paulo, Brazil
- Laboratory of Veterinary Pathology, University of Santo Amaro, São Paulo, Brazil
| | - Thayná Neves Cardoso
- Graduate Program in Environmental and Experimental Pathology, Research Center of University Paulista, Rua Dr Bacelar, 1212 – 4th Floor, 04026-002 São Paulo, Brazil
| | - Elizabeth Cristina Perez Hurtado
- Graduate Program in Environmental and Experimental Pathology, Research Center of University Paulista, Rua Dr Bacelar, 1212 – 4th Floor, 04026-002 São Paulo, Brazil
- Laboratory of Immunology, Federal University of São Paulo, São Paulo, Brazil
| | | | | | - Leoni Villano Bonamin
- Graduate Program in Environmental and Experimental Pathology, Research Center of University Paulista, Rua Dr Bacelar, 1212 – 4th Floor, 04026-002 São Paulo, Brazil
- Laboratory of Veterinary Pathology, University of Santo Amaro, São Paulo, Brazil
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Ahmad S, Rehman T, Abbasi WM. Effects of homoeopathic ultrahigh dilutions of Aconitum napellus on Baker's yeast-induced fever in rabbits. JOURNAL OF INTEGRATIVE MEDICINE-JIM 2017; 15:209-213. [PMID: 28494851 DOI: 10.1016/s2095-4964(17)60329-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
OBJECTIVE To evaluate the effects of homoeopathic ultrahigh dilutions of Aconitum napellus in Baker's yeast-induced fever in rabbits. METHODS Rabbits were divided into 4 groups and each group contained 6 rabbits. Baker's yeast suspension (20%) was injected subcutaneously. After fever induction, paracetamol and homoeopathic ultrahigh dilutions (A. napellus 200c and 1 000c) were given orally. Rectal temperature was measured with digital thermometer hourly. RESULTS Fever was induced in all the rabbits after 4 hours of Baker's yeast administration. A. napellus 200c and 1000c significantly reduced the temperature (P < 0.05). In positive control, temperature decrease was more significant (P < 0.001). CONCLUSION The above findings indicate the effectiveness of ultrahigh dilutions of A. napellus in Baker's yeast-induced fever in rabbits. However, the effects were slower and less significant than standard medicine. Moreover, future research is required to know their mechanism of reducing temperature.
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Affiliation(s)
- Saeed Ahmad
- Department of Pharmacy, Faculty of Pharmacy and Alternative Medicine, The Islamia University of Bahawalpur, Bahawalpur 63100, Pakistan
| | - Tayyeba Rehman
- University College of Conventional Medicine, Faculty of Pharmacy and Alternative Medicine, The Islamia University of Bahawalpur, Bahawalpur 63100, Pakistan
| | - Waheed Mumtaz Abbasi
- University College of Conventional Medicine, Faculty of Pharmacy and Alternative Medicine, The Islamia University of Bahawalpur, Bahawalpur 63100, Pakistan
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Trypanosoma cruzi: Biotherapy made from trypomastigote modulates the inflammatory response. HOMEOPATHY 2015; 104:48-56. [DOI: 10.1016/j.homp.2014.05.007] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2013] [Revised: 04/30/2014] [Accepted: 05/28/2014] [Indexed: 12/22/2022]
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Rodrigues de Santana F, Coelho CDP, Cardoso TN, Laurenti MD, Perez Hurtado EC, Bonamin LV. Modulation of inflammation response to murine cutaneous Leishmaniosis by homeopathic medicines: thymulin 5cH. HOMEOPATHY 2014; 103:275-84. [PMID: 25439044 DOI: 10.1016/j.homp.2014.08.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2014] [Revised: 07/16/2014] [Accepted: 08/26/2014] [Indexed: 01/15/2023]
Abstract
BACKGROUND In previous studies, we observed that thymulin 5cH could modulate BCG (Bacillus Calmette-Guerin) induced chronic inflammation by increasing peritoneal B1 stem cells differentiation into phagocytes and improving phagocytosis efficiency. METHODS We used the same protocol to study the effects of thymulin 5cH in the experimental murine Leishmaniasis, in order to elucidate some aspects of the parasite-host relation under this homeopathic treatment. Male Balb/c mice were orally treated with thymulin 5cH or vehicle during 60 days, after the subcutaneous inoculation of 2 × 10(6) units of Leishmania (L.) amazonensis into the footpad. Washied inflammatory cell suspension from peritoneal cavity, spleen, local lymph node and infected subcutaneous tissue were harvested after 2 and 60 days from infection to quantify the inflammation cells by flow cytometry and histometry methods. RESULTS After a transitory increase of peritoneal T reg cells, treated mice presented, chronically, increase in the peritoneal and spleen B1 cells percentage (p = 0.0001) in relation to other cell types; more organized and exuberant inflammation response in the infection site, and decrease in the number of parasites per field inside the primary lesion (p = 0.05). No difference was seen in local lymph node histology. CONCLUSIONS Thymulin 5cH is able to improve B1 cell activation and Leishmania (L) amazonensis phagocytosis efficiency in mice, similarly to that observed previously in BCG experimental infection.
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Affiliation(s)
- Fabiana Rodrigues de Santana
- Research Center of Universidade Paulista, São Paulo, Brazil; Laboratory of Veterinary Pathology, Universidade de Santo Amaro, Brazil
| | - Cidéli de Paula Coelho
- Research Center of Universidade Paulista, São Paulo, Brazil; Laboratory of Veterinary Pathology, Universidade de Santo Amaro, Brazil
| | | | | | | | - Leoni Villano Bonamin
- Research Center of Universidade Paulista, São Paulo, Brazil; Laboratory of Veterinary Pathology, Universidade de Santo Amaro, Brazil.
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Bagai U, Walter NS. Antiplasmodial potential of homeopathic drugs Chelidonium and nosode against Plasmodium berghei infection. JOURNAL OF COMPLEMENTARY & INTEGRATIVE MEDICINE 2014; 11:195-201. [PMID: 25046315 DOI: 10.1515/jcim-2013-0006] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/11/2013] [Accepted: 05/20/2014] [Indexed: 06/03/2023]
Abstract
BACKGROUND Malaria remains a major global health concern in developing regions of the world. Homeopathy, a holistic system of medicine, has a lot to offer in protecting against malaria. METHODS In the present study, antimalarial efficacy of combination of two homeopathic drugs Chelidonium 30 and nosode 30 has been evaluated in vivo against Plasmodium berghei (P. berghei) infection using Peters 4-day test. Biochemical assays have been performed to assess the levels of hepatic and renal function biomarkers upon drug treatment using diagnostic kits. RESULTS The combination of the drugs demonstrated considerable in vivo antimalarial activity with chemosuppression of 91.45% on day 7. The combination also significantly (p < 0.0005) enhanced the mean survival time of mice which was calculated to be 22.5 ± 6.31 days, whereas it was 8.55 ± 0.83 days in infected control. The increase in levels of the liver function marker enzymes tested in serum of treated mice were significantly less (p < 0.0005) than those observed in infected control on day 10. The serum urea and creatinine used for assessment of renal sufficiency were slightly elevated above normal, but were statistically significant (p < 0.0005) as compared to infected control. CONCLUSIONS The study establishes the effectiveness of the combination against P. berghei in vivo along with the safety of the drugs to the liver and kidney functions of the host.
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Rajan A, Bagai U. Antimalarial potential of China 30 and Chelidonium 30 in combination therapy against lethal rodent malaria parasite: Plasmodium berghei. JOURNAL OF COMPLEMENTARY & INTEGRATIVE MEDICINE 2013; 10:/j/jcim.2013.10.issue-1/jcim-2012-0016/jcim-2012-0016.xml. [PMID: 23652641 DOI: 10.1515/jcim-2012-0016] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2012] [Accepted: 03/08/2013] [Indexed: 11/15/2022]
Abstract
Homeopathy is a therapeutic method based on the application of similia principle, utilizing ultra-low doses of medicinal substances made from natural products. The present study has been designed to evaluate the efficacy of Cinchona officinalis (Chin.) 30C and Chelidonium majus (Chel.) 30C in combination therapy against lethal murine malaria. Five groups having twelve BALB/c mice each were administered orally with 0.2 ml/mouse/day of different drugs, and their antimalarial potential was evaluated by Peter's 4-day test. The combination of Chin. 30 and Chel. 30 exhibited complete parasite clearance by the 28th day post-inoculation which was similar to the positive control [artesunate (4 mg/kg)+sulphadoxine-primethamine (1.2 mg/kg)] group. Both the groups exhibited enhanced mean survival time (MST) 28±0 days,whereas, the mice of infected control group survived up to 7.6±0.4 days only. The preventive and curative activities of the combination in comparison to the positive controls [pyrimethamine (1.2 mg/Kg) and chloroquine (20 mg/Kg), respectively] were also evaluated. The combination had a significant preventive activity (p<0.0005), with 89.2% chemosuppression which was higher than the standard drug, pyrimethamine (83.8%). It also showed a moderate curative activity with complete clearance of parasite in 50% of surviving mice, and enhancing the MST of mice up to 26.8±2.8 days. These findings point to the significant antiplasmodial efficacy of the combination of these homeopathic drugs against Plasmodium berghei.
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Bell IR, Schwartz GE, Boyer NN, Koithan M, Brooks AJ. Advances in Integrative Nanomedicine for Improving Infectious Disease Treatment in Public Health. Eur J Integr Med 2013; 5:126-140. [PMID: 23795222 PMCID: PMC3685499 DOI: 10.1016/j.eujim.2012.11.002] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
INTRODUCTION Infectious diseases present public health challenges worldwide. An emerging integrative approach to treating infectious diseases is using nanoparticle (NP) forms of traditional and alternative medicines. Advantages of nanomedicine delivery methods include better disease targeting, especially for intracellular pathogens, ability to cross membranes and enter cells, longer duration drug action, reduced side effects, and cost savings from lower doses. METHODS We searched Pubmed articles in English with keywords related to nanoparticles and nanomedicine. Nanotechnology terms were also combined with keywords for drug delivery, infectious diseases, herbs, antioxidants, homeopathy, and adaptation. RESULTS NPs are very small forms of material substances, measuring 1-100 nanometers along at least one dimension. Compared with bulk forms, NPs' large ratio of surface-area-to-volume confers increased reactivity and adsorptive capacity, with unique electromagnetic, chemical, biological, and quantum properties. Nanotechnology uses natural botanical agents for green manufacturing of less toxic NPs. DISCUSSION Nanoparticle herbs and nutriceuticals can treat infections via improved bioavailability and antiinflammatory, antioxidant, and immunomodulatory effects. Recent studies demonstrate that homeopathic medicines may contain source and/or silica nanoparticles because of their traditional manufacturing processes. Homeopathy, as a form of nanomedicine, has a promising history of treating epidemic infectious diseases, including malaria, leptospirosis and HIV/AIDS, in addition to acute upper respiratory infections. Adaptive changes in the host's complex networks underlie effects. CONCLUSIONS Nanomedicine is integrative, blending modern technology with natural products to reduce toxicity and support immune function. Nanomedicine using traditional agents from alternative systems of medicine can facilitate progress in integrative public health approaches to infectious diseases.
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Affiliation(s)
- Iris R. Bell
- Department of Family and Community Medicine, the University of Arizona College of Medicine, Tucson, AZ, USA
- Department of Psychiatry, the University of Arizona College of Medicine, Tucson, AZ, USA
- Department of Psychology, the University of Arizona, Tucson, AZ, USA
- College of Nursing, the University of Arizona, Tucson, AZ, USA
- Department of Medicine (Integrative Medicine), the University of Arizona College of Medicine, Tucson, AZ, USA
- Mel and Enid Zuckerman College of Public Health, the University of Arizona, Tucson, AZ USA
| | - Gary E. Schwartz
- Department of Psychiatry, the University of Arizona College of Medicine, Tucson, AZ, USA
- Department of Psychology, the University of Arizona, Tucson, AZ, USA
- Department of Medicine (Integrative Medicine), the University of Arizona College of Medicine, Tucson, AZ, USA
| | | | - Mary Koithan
- Department of Family and Community Medicine, the University of Arizona College of Medicine, Tucson, AZ, USA
- College of Nursing, the University of Arizona, Tucson, AZ, USA
- Department of Medicine (Integrative Medicine), the University of Arizona College of Medicine, Tucson, AZ, USA
| | - Audrey J. Brooks
- Department of Psychology, the University of Arizona, Tucson, AZ, USA
- Department of Medicine (Integrative Medicine), the University of Arizona College of Medicine, Tucson, AZ, USA
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Hensel A, Maas M, Sendker J, Lechtenberg M, Petereit F, Deters A, Schmidt T, Stark T. Eupatorium perfoliatum L.: phytochemistry, traditional use and current applications. JOURNAL OF ETHNOPHARMACOLOGY 2011; 138:641-651. [PMID: 22004891 DOI: 10.1016/j.jep.2011.10.002] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/07/2011] [Revised: 08/25/2011] [Accepted: 10/02/2011] [Indexed: 05/31/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Eupatorium perfoliatum L. originates from North America, where it has been widely used since centuries by native Indians. Additionally extracts are used also in Europe as immunostimulating agent for treatment of fever and cold. The following review summarizes published data on phytochemistry, ethnopharmacological use, as well as clinical and preclinical data. MATERIALS AND METHODS Literature survey was performed via SciFinder(®) on papers and patents and by systematic research in ethnopharmacological literature at various university libraries. RESULTS The phytochemical composition of Eupatorium perfoliatum is described in detail for volatile oil, caffeic acid derivatives, flavonoids, sesquiterpene lactones, tannins, polysaccharides. Methods for analytical quality control, as well as specification for relevant lead structures can be deduced from published batch analysis. Preclinical studies indicate anti-inflammatory effects of ethanolic extracts, which can be correlated on a molecular level to eupafolin and sesquiterpen lactones. Antiplasmodial, antioxidative and immunomodulating activities are additionally discussed. Clinical data on the use of Eupatorium perfoliatum do not meet modern GCP requirements, but do indicate positive tendencies for use of ethanolic extracts for treatment of common colds. CONCLUSION While the postulated immunostimulating properties of Eupatorium perfoliatum have not been confirmed by in vitro data, animal-studies and in vitro experiments with plant extracts both indicate antiinflammatory effects beside antiplasmodial effect against Plasmodium falciparum. Such an antiinflammation caused by the ethanolic extracts can be correlated well with clinical symptoms related to diseases as common cold, rheumatism, athritis etc. These data also support the plausibility of the plant's traditional use by the North American indigenous population and early European settlers. In principle quality aspects of the herbal material have to be affirmed by establishing modern pharmacopoeial control methods to guarantee constant and reliable quality.
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Affiliation(s)
- Andreas Hensel
- University of Münster, Institute for Pharmaceutical Biology and Phytochemistry, Münster, Germany.
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Maas M, Hensel A, Costa FBD, Brun R, Kaiser M, Schmidt TJ. An unusual dimeric guaianolide with antiprotozoal activity and further sesquiterpene lactones from Eupatoriumperfoliatum. PHYTOCHEMISTRY 2011; 72:635-644. [PMID: 21329950 DOI: 10.1016/j.phytochem.2011.01.025] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/19/2010] [Revised: 01/17/2011] [Accepted: 01/18/2011] [Indexed: 05/30/2023]
Abstract
The CH(2)Cl(2) extract of aerial parts of Eupatorium perfoliatum L. exhibits antiprotozoal activity under in vitro conditions, especially against Plasmodium falciparum (IC(50)=2.7μg/ml). The search for active compounds yielded seven sesquiterpene lactones: Four structurally similar guaianolides, one dimeric guaianolide, and two germacranolides. The guaianolides differ in the degree of oxidation at C-14, ranging from a hydroxyl group up to a free carboxylic acid. The dimeric guaianolide, structurally closely related to the monomers, displays an unusual type of interguaianolide linkage between C-14 and C-4. Except for the germacranolide euperfolitin, all STLs described here were hitherto unknown. Furthermore, the flavonoid aglycones eupafolin, hispidulin, patuletin, and kaempferol were identified in the extract, which, except for kaempferol, have not been described as constituents of E. perfoliatum before. The dimeric guaianolide was shown to be the most active constituent against Plasmodium falciparum (IC(50) = 2.0μM) and was less cytotoxic against rat skeletal myoblasts (IC(50) = 16.2μM, selectivity index of about 8).
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Affiliation(s)
- Mareike Maas
- Institute of Pharmaceutical Biology and Phytochemistry, University of Münster, Hittorfstraße 56, D-48149 Münster, Germany
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Clausen J, van Wijk R, Albrecht H. Infection models in basic research on homeopathy. HOMEOPATHY 2010; 99:263-70. [PMID: 20970096 DOI: 10.1016/j.homp.2010.08.001] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2009] [Revised: 07/27/2010] [Accepted: 08/23/2010] [Indexed: 11/28/2022]
Abstract
INTRODUCTION The objective of this study was to search for effective agents for the treatment of infections in animals or infected cell lines. METHODS The Homeopathic Basic Research experiments (HomBRex) database (http://www.carstens-stiftung.de/hombrex) on model biological systems in homeopathic research was searched. Eligible experiments were reviewed and analysed. RESULTS The database contains 48 eligible experiments published from 1832 to 2009. Causative pathogens were bacteria, fungi, viruses, proto- and metazoa. In the experiments, various parameters were observed and a large set of medicines was investigated. In eight of the 48 experiments, at least one of the investigated medicines was selected according to the similia principle. Nosodes and homeopathic complexes were investigated in 8 and 14 experiments respectively. Mice were the most often used host organisms (13 experiments). In 31 experiments at least one homeopathic medicine was found effective for treatment. CONCLUSION The results of basic research experiments may invigorate new clinical trials that investigate complementary treatments for infectious diseases. However, all experiments reviewed here await replication and no clear-cut conclusion can be drawn regarding the transferability of in vitro results to in vivo outcomes.
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Animal models for studying homeopathy and high dilutions: Conceptual critical review. HOMEOPATHY 2010; 99:37-50. [DOI: 10.1016/j.homp.2009.11.003] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2009] [Revised: 10/26/2009] [Accepted: 11/03/2009] [Indexed: 11/17/2022]
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Maas M, Petereit F, Hensel A. Caffeic acid derivatives from Eupatorium perfoliatum L. Molecules 2008; 14:36-45. [PMID: 19104484 PMCID: PMC6253889 DOI: 10.3390/molecules14010036] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2008] [Revised: 12/16/2008] [Accepted: 12/18/2008] [Indexed: 11/18/2022] Open
Abstract
From the ethyl acetate soluble fraction of a methanol/water extract of the herb Eupatorium perfoliatum L. (Asteraceae) six caffeic acid derivatives have been isolated and identified by 1D- and 2D-NMR spectroscopic data. Besides the common quinic acid derivatives 5-caffeoylquinic acid (chlorogenic acid), 3-caffeoylquinic acid (neochlorogenic acid) and 3,5-dicaffeoylquinic acid, three up to now unknown depsides of caffeic acid with glucaric acid have been isolated: 2,5-dicaffeoylglucaric acid, 3,4-dicaffeoylglucaric acid, and 2,4- or 3,5-dicaffeoylglucaric acid.
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Affiliation(s)
| | | | - Andreas Hensel
- Author to whom correspondence should be addressed; E-Mail: ; Tel.: +49 251 83 3 3380; Fax: +49 251 83 3 8341
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