Guest guest Posted March 18, 2004 Report Share Posted March 18, 2004 Jagtap AG; Shirke SS; Phadke AS | Effect of polyherbal formulation on experimental models of inflammatory bowel diseases. | Journal of Ethnopharmacology 90, (2-3), February 2004, 195-204 | Email: sarikashirke; Department of Pharmacology, Bombay College of Pharmacy, Kalina, Santacruz (E), Mumbai, 400 098, India | A polyherbal ayurvedic formulation from an ancient authentic classical text of ayurveda was evaluated for its activity against inflammatory bowel disease (IBD). The polyherbal formulation contained four different drugs viz., Bilwa (Aegle marmeloes), Dhanyak (Coriandrum sativun), Musta (Cyperus rotundus) and Vala (Vetiveria zinzanioids). The formulation has been tried before in clinical practice and was found to be useful in certain number of cases of IBD (ulcerative colitis), so was tried in the same form i.e., decoction (aqueous extract) in experimental animals to revalidate the claims of the same. The formulation was tried on two different experimental animal models of inflammatory bowel disease, which are acetic acid-induced colitis in mice and indomethacin-induced enterocolitis in rats. Prednisolone was used as the standard drug for comparison. The formulation showed significant inhibitory activity against inflammatory bowel disease induced in these experimental animal models. The activity was comparable with the standard drug prednisolone. The results established the efficacy of this polyherbal formulation against inflammatory bowel diseases. Kim Bokyung; Kim Junghwan; Kim Aeran; Kim Yoon-Sun; Lee Youn Ri; Bae Young Min; Cho Sungil; Rhyu Mee-Ra | Ligusticum wallichi-induced vasorelaxation mediated by mitogen-activated protein kinase in rat aortic smooth muscle. | Journal of Ethnopharmacology 90, (2-3), February 2004, 397-401 | Email: bkkim2; Department of Physiology, College of Medicine, Konkuk University, Danwol-dong 322, Chungju, Choong- Buk, 380-701, South Korea | Traditional herbal medicines have been widely used for the treatment of cardiovascular disorders in oriental countries. To determine the effects of Ch1LW, a chloroform extract of Ligusticum wallichi, on the vascular system, we studied changes in rat aortic smooth muscle in terms of magnitude of contraction and the activity of mitogen-activated protein kinases (MAPKs). Ch1LW inhibited the muscle contraction induced by norepinephrine (NE) in aortic strips. Ch1LW also abolished Ca2+- independent contraction evoked by 12-deoxyphorbol 13-isobutyrate in Ca2+-free medium containing 1 mM EGTA. Furthermore, western blotting analysis using phosphorylated MAPK antibodies showed that NE increased the activity of both extracellular signal- regulated kinase 1/2 (ERK1/2) and p38 MAPK, which were inhibited by PD98059 and SB203580, blockers of ERK1/2 and p38 MAPK, respectively. Furthermore, treatment with Ch1LW significantly abolished NE-mediated activation of ERK1/2, whereas the activity of p38 MAPK was not affected by the extract. Ch1LW induced vasorelaxation in rat aortic smooth muscle, which may be mediated by the inhibition of ERK1/2 pathway, but not p38 MAPK. Kim C; Ha H; Lee JH; Kim JS; Park SW et al | Herbal extract prevents bone loss in ovariectomized | Archives of Pharmacal Research (Korea) 26, (11), 2003, 917-924 | Korea Inst Oriental Med, Drug Res & Dev Team, 129-11 Chungdam Dong, Seoul 135100, South Korea cskim | This research aims to test a new drug candidate based on a traditional medicinal herb, F1, an herbal extract obtained from Astragalus membranaceus and its main ingredient, 1-monolinolein that may have fewer side effects and less uterine hypertrophy. In vitro experiments, human osteoblast-like cell lines, MG-63 and Saos-2, were analyzed by 3- (4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) and an alkaline phosphatase (ALP) assays. Mouse osteoclasts were induced through a calcium-deficient diet and inhibition effects were measured. In vivo experiments were done using ovariectomized (OVX) rats for 9 weeks. At necropsy, uterus weights were measured, trabecular bone area (TBA) of tibia and lumbar vertebra were measured bone histomorphology. In results, cell proliferation and ALP activity in Saos-2 by ether F1 or 1- monolinolein did not increased significantly compared to the control. The F1 inhibited osteoclast development (IC<INF>25</INF> = 3.37 x 10<SUP>-5</SUP> mg/mL) less than 17beta-estradiol. The OVX rats administered F1 (2 mg/kg/day and 10 mg/kg/day) showed an increase in TBA of the tibia significantly (136.3 +/- 4.2% and 138.5 +/- 10.3% of control). In conclusions, the herbal extract, F1 inhibited tibia and lumbar bone loss and did not cause uterine hypertrophy. However, 1-monolinolein, the main ingredient of the herbal extract, did not inhibit bone loss. Kim Mi-Sun; Choi In-Young; Lee Si-Hyeong; Hong Seung-Heon; Shin Taekyun; Kim Hyung-Min | The Oriental medicine 'Cool-Cool (Cool-X-A)' inhibits inflammatory cytokine production and migration in mast cells. | Biological & Pharmaceutical Bulletin 27, (1), January 2004, 34-37 | Email: hmkim; Department of Pharmacology, College of Oriental Medicine, Kyung Hee University, 1 Hoegi-Dong, Dongdaemun-Gu, Seoul, 130-701, South Korea | Plant medications have been applied to treat pains from various types of arthritis in Korea. Rheumatoid arthritis (RA) is well known to be a chronic autoimmune/inflammatory disease that leads to progressive joint damage and cartilage destruction. Accumulation and activation of mast cells have been demonstrated in rheumatoid synovial tissue. Because infiltrated mast cells and their mediators may contribute to the initiation and progression of the inflammatory process and matrix degradation of RA, we tested the inhibitory effects of 'Cool-Cool' (CC, Cool-X-A), an Oriental medication, on the production and migration of major inflammatory cytokines in mast cells. CC was treated in vitro before activation of human mast cell line (HMC-1) with phorbol 12-myristate 13- acetate, and the cytotoxicity of CC was assessed by 3-(4,5- dimethylthiazol-2-yl)-2,5-diphenyltetrazoliumbromide assay. CC had no cytotoxic effects on HMC-1 cell viability. The inhibitory effects on cytokine production were monitored by enzyme-linked immunosorbent assay and reverse transcriptase-polymerase chain reaction (RT-PCR). CC inhibited not only the secretion but also the expression of TNF-alpha and IL-8 in HMC-1 cells. CC also suppressed migration of mast cells induced by stem cell factor. These findings may help in understanding the mechanism of action of this herbal medication, leading to the control of mast cells in inflammatory conditions like RA. Koo Hyan-Na; Lee Jai-Kyoo; Hong Seung-Heon; Kim Hyung-Min | Herbkines increases physical stamina in mice. | Biological & Pharmaceutical Bulletin 27, (1), January 2004, 117-119 | Email: hmkim; Department of Pharmacology, College of Oriental Medicine, Kyung Hee University, 1 Hoegi-Dong, Dongdaemun-Gu, Seoul, 130-701, South Korea | Herbkines has been used for the purpose of development of physical strength. In the present study, we investigated the effect of Herbkines on performance of the forced swimming test (FST) and on blood biochemical parameters related to fatigue: blood urea nitrogen (BUN), creatine kinase (CK), lactic dehydrogenase (LDH), glucose (Glc), and total protein (TP). Herbkines were orally administered to mice, 10 ml/kg, continuously once/day for 2 weeks using a feeding atraumatic needle. After 2 d, on FST, the immobility time was decreased in the Herbkines-fed group (178 +/- 8.2 s) in comparison with the control group (189 +/- 22 s); however, the statistical difference was very weak (p=0.596). After 2 weeks, the immobility time was significantly decreased in the Herbkines-fed group (196 +/- 4.5 s) in comparison with the control group (221 +/- 6.2 s). In addition, the content of BUN in the blood serum was significantly decreased. However, the levels of CK, LDH, Glc, and TP did not show a significant change. The results predict a potential benefit of Herbkines as an anti-fatigue treatment and for improving physical stamina. Lee Mi-Hye; Yoon Sik; Moon Jeon-Ok | The flavonoid naringenin inhibits dimethylnitrosamine-induced liver damage in rats. BIO 07- 14 PREV200400157314 NDN- 244-0279-4608-1 | Biological & Pharmaceutical Bulletin 27, (1), January 2004, 72-76 | Email: mjo; College of Pharmacy, Pusan National University, Changjeon-dong, Kumjeong-gu, Pusan, 609-735, South Korea | Naringenin, a phytoalexin found in grapefruits and tomatoes, has been reported to exhibit a wide range of pharmacological properties. In this study, we investigated the protective effect of naringenin on hepatic injury induced by dimethylnitrosamine (DMN) in rats. Oral administration of naringenin (20 and 50 mg/kg daily for 4 weeks) remarkably prevented the DMN-induced loss in body and liver weights and inhibited the elevation of serum alanine transaminase, aspartate transaminase, alkaline phosphatase, and bilirubin levels. Naringenin also restored serum albumin and total protein levels, and reduced the hepatic level of malondialdehyde. Furthermore, DMN-induced collagen accumulation, as estimated by histological analysis of liver tissue stained with Sirius red, was reduced in the naringenin-treated rats. A reduction in hepatic stellate cell activation, as assessed by alpha-smooth muscle actin staining, was associated with naringenin treatment In conclusion, these results demonstrate that naringenin exhibited in vivo hepatoprotective and anti-fibrogenic effects against DMN-induced liver injury. Naringenin may be useful in preventing the development of hepatic fibrosis. Miyata T | Novel approach to respiratory pharmacology - Pharmacological basis of cough, sputum and airway clearance | Journal of the Pharmaceutical Society of Japan (Japan)123, (12), 2003, 987-1006 | Kumamoto Univ, Grad Sch Med & Pharmaceut Sci, 5-1 Oehonmachi, Kumamoto 8620973, Japan tmiyata | The development of new techniques has made it possible to identify and measure the mucus components, measure the rheologic parameters more accurately, and evaluate mucociliary clearance precisely in animals and humans. Therefore, with modifications of methods, we have investigated airway-cleansing drugs from various points of view to reflect actions in inflammatory states for more than two decades. Here, I introduce the methods we have used to study many of the parameters involved in airway clearance, including cough reflex, and describe some of the mucoactive-antitussive drugs that we have studied recently. There is an increasing usage of traditional Chinese herbal medicines in clinics and hospitals, because they tend to have moderate side effects and sometimes remarkable efficacy To renormalize overall defects in airway disorders, Chinese medicines may be adequate, because they are composed of various herbs with weak but ubiquitous pharmacologic activities. We have been investigating Bakumondo-to. Bakumondo- to has been used for the treatment of bronchitis and pharyngitis accompanying severe dry cough. We found that unlike codeine Bakumondo-to had a notable antitussive activity against the cough associated with bronchitis and the cough increased by angiotensin- converting enzyme inhibitors. Recently, we have found that, in alveolar type II cells, Bakumondo-to attenuated phosphatidylcholine secretion increased by oxygen radicals from activated PMNLS. In addition, we found that Bakumondo-to itself stimulated phosphatidylcholine secretion and increased beta-adrenoceptor gene expression in rat alveolar type II cells. We studied the mechanism of action and clarified that Bakumondo-to increased glucocorticoid-sensitive promotor activity. The effect may contribute to its ubiquitous effectiveness in the treatment of airway diseases. Various parameters (chemical properties, physical properties, mucus production, surfactant phospholipid production, and mucociliary clearance) are considered to be important for the dynamics and mobilization of airway secretions. Pharmacologic investigation, with appropriate techniques, of the ability of an agent to modify these parameters can provide useful information about its mechanism of action. However, since these parameters are interconnected, it is very complicated to elucidate the precise mechanisms of action of mucoactive drugs. This means that the goal of treatment cannot always be achieved by the modification of a single parameter, but should, more realistically, be aimed at a renormalization of several parameters. On the basis of this idea, glucocorticoids are ideal mucoactive drugs because they exert various pharmacologic effects in the lung. From a polypharmacologic point of view, a traditional Chinese medicine can be classified as a glucocorticoid-like drug because Chinese medicines consist of many types of active components that have various pharmacologic effects As one future course of research, we believe that efforts to seek compatible actions between glucocorticoids and Oriental medicines may lead to new opportunities for development of ideal airway-cleansing drugs with specific actions, i.e., suppression of gene expression. Munemoto Yoshinori; Iida Yoshiro; Ohata Kou; Saito Hideo; Fujisawa Katsunori; Kasahara Yoshiro; Mitsui Tsuyoshi; Asada Yasuyuki; Miura Shoji | Significance of postoperative adjuvant immunochemotherapy after curative resection of colorectal cancers: Identification of responders incorporating the age factor. | Oncology Reports 11, (3), March 2004, 623-635 | Email: y- munemoto; Department of Surgery, Prefecture of Saiseikai Fukui Hospital, 7-1 Funabashi, Wadanaka- cho, Fukui, 918-8503, Japan | To identify responders when protein- bound polysaccharide (PSK) is used in adjuvant immunochemotherapy after curative resection of colorectal cancers, we examined the host and tumor factors that affect the prognosis incorporating the age factor. A total of 101 patients who had undergone macroscopic curative resection of colorectal cancer were treated with mitomycin C+fluoropyrimidine oral antineoplastics+PSK (MFP therapy) for two years in principle. These cases were divided into two age groups of <65 years (n=55; 54.8 +/- 8.3 years (mean +/- SD)) and >/=65 years (n=46; 69.1 +/- 3.3 years). Host factors including humoral factors (complement C3 and C4), immunosuppressive acidic protein (IAP), lymphocyte transformation (cellular factors) induced by various mitogens (phytohemagglutinin (PHA), pokeweed mitogen (PWM), and PSK), and tumor markers (CEA, CA19-9) were measured. The cases were divided by the cut-off value of each parameter into >/= cut-off value and < cutoff value groups, and the 5-year survival rates were compared. The cut-off values obtained for these parameters and the tumor factor (Dukes class) were subjected to multivariate analysis to identify the markers that affect prognosis. The 5-year mortality rate was 74.5% in the <65 age group and 56.8% in the >/=65 age group, with a tendency of better prognosis in the <65 age group (p=0.1109). Compared to the <65 age group, the >/=65 age group showed higher levels of C3 (2-way ANOVA: p=0.0582), C4 (p=0.0009) and IAP (p=0.0110) over time, but lower PSK-induced stimulation index (SI) as an indicator of cellular immunity) (p=0.0001) and PHA-induced SI (p=0.2650) over time. These results indicated that compared to patients aged <65 years, patients aged >/=65 years were characterized by lowered cellular immunity in addition to augmented complement production and an aggravated immunosuppressive state, suggesting the presence of some differences in host immune function with aging. Using the Cox proportional hazard model, the prognostic determinant was found to be Dukes C in the <65 age group, and CEA level in the >/=65 age group. The results suggested that analysis of prognostic determinants of this therapy should take into account the age factor. Especially in elderly subjects, responders to PSK may be identified using the preoperative CEA value. Raeth Karin; Taxis Katja; Walz Gitta; Gleiter Christoph H; Li Shu- Ming; Heide Lutz | Pharmacokinetic study of artemisinin after oral intake of a traditional preparation of Artemisia annua L. (Annual Wormwood). | American Journal of Tropical Medicine and Hygiene 70, (2), February 2004, 128-132 | Email: heide; Pharmazeutische Biologie, Pharmazeutisches Institut, Universitaet Tuebingen, Auf der Morgenstelle 8, 72076, Tuebingen, Germany h | Artemisia annua L. (annual wormwood) contains the antimalarial artemisinin. Aqueous preparations of the dried herb are included in the pharmacopoeia of the People's Republic of China for treatment of fever and malaria. Fourteen healthy male volunteers received one liter of tea prepared from nine grams of Artemisia annua leaves. Blood samples were taken and artemisinin was detected by reversed phase high-performance liquid chromatography. The mean +/- SD maximum plasma concentration of artemisinin was 240 +/- 75 ng/mL and the mean +/- SD area under the plasma concentration-time curve was 336 +/- 71 ng/mLXhr. Artemisinin was absorbed faster from herbal tea preparations than from oral solid dosage forms, but bioavailability was similar. One liter of an aqueous preparation of nine grams of Artemisia annua contained 94.5 milligrams of artemisinin (approximately 19% of the usually recommended daily dose). Artemisinin plasma concentrations after intake of this herbal tea are sufficient for clinical effects, but insufficient to recommend such preparations as equivalent substitutes for modern artemisinin drugs in malaria therapy Schoetz Karl | Quantification of allergenic urushiols in extracts of Ginkgo biloba leaves, in simple one-step extracts and refined manufactured material (EGb 761). | Phytochemical Analysis 15, (1), January-February 2004, 1-8 DOCUMENT TYPE- Article ISSN- 0958-0344 | Email: karl.schoetz; Phytochemical Department, Dr. Willmar Schwabe Arzneimittel, Willmar-Schwabe- Str. 4, D-76227, Karlsruhe, Germany | Extracts of leaves of Ginkgo biloba (family Ginkgoaceae), widely used in the treatment of peripheral and cerebral circulatory disorders as well as for dementia of different aetiology, contain long chain alkylphenols (with allergenic, cytotoxic, mutagenic and tumour-promoting properties) together with the extremely potent allergens, the urushiols. Such hazardous compounds can be present only in very low concentrations in phytopharmaceutical preparations and hence, for the purposes of drug safety, techniques must be available for the identification and quantification of these allergens at extremely low levels in refined manufactured materials. GC-MS analysis of samples collected at various stages during the production process of a standardised extract of G. biloba (EGb 761) demonstrated that all alkylphenols present in the primary acetone extracts were removed in parallel with the same efficiency irrespective of their aromatic substitution pattern. Furthermore, in the final product the content of urushiols was generally below the detection limit of 0.03 ppm. Therefore, it is concluded that demonstrating the absence of the predominant, and easily quantifiable, ginkgolic acids provides a reliable means for the control of pharmaceutical quality of the final product. Storr M; Sibaev A; Marsicano G; Lutz B; Schusdziarra V; Timmermans J-P; Allescher HD | Cannabinoid receptor type 1 modulates excitatory and inhibitory neurotransmission in mouse colon. | American Journal of Physiology 286, (1), Part 1 January 2004, G110-G117 | Email: martin.storr; II. Med. Klinik und Poliklinik, Technischen Universitaet Muenchen, Ismaningerstr. 22, 81675, Muenchen, Germany | The effects of cannabinoid receptor agonists and antagonists on smooth muscle resting membrane potentials and on membrane potentials following electrical neuronal stimulation in a myenteric neuron/smooth muscle preparation of wild-type and cannabinoid receptor type 1 (CB1)-deficient mice were investigated in vitro. Double staining for CB1 and nitric oxide synthase (neuronal) was performed to identify the myenteric CB1-expressing neurons. Focal electrical stimulation of the myenteric plexus induced a fast (f) excitatory junction potential (EJP) followed by a fast and a slow (s) inhibitory junction potential (IJP). Treatment of wild-type mice with the endogenous CB1 receptor agonist anandamide reduced EJP while not affecting fIJP and sIJP. EJP was significantly higher in CB1-deficient mice than in wild-type littermate controls, and anandamide induced no effects in CB1-deficient mice. N-arachidonoyl ethanolamide (anandamide), R-(2,3-dihydro-5-me- thyl-3-(4-morpholin- ylmethyl)pyrrolo(1,2,3,-de)-1,4-benzoxazin-6-yl)-1- naphtalenylmethanone, a synthetic CB1 receptor agonist, nearly abolished EJP and significantly reduced the fIJP in wild-type mice. N-piperidino-5-(4-c- hlorophenyl)-1-(2,4-dichloro-phenyl)-4-methyl-3- pyrazole-caroxamide (SR141716A), a CB1-specific receptor antagonist, was able to reverse the agonist effects induced in wild- type mice. SR141716A, when given alone, significantly increased EJP in wild-type mice without affecting IJP in wild-type and EJP in CB1-deficient mice. Interestingly, SR141716A reduced fIJP in CB1- deficient mice. In the mouse colon, nitrergic myenteric neurons do not express CB1, implying that CB1 is expressed in cholinergic neurons, which is in line with the functional data. Finally, excitatory and inhibitory neurotransmission in the mouse colon is modulated by activation of CB1 receptors. The significant increase in EJP in CB1-deficient mice strongly suggests a physiological involvement of CB1 in excitatory cholinergic neurotransmission. Yamaguchi Shuhei; Matsubara Miwa; Kobayashi Shotai | Event- related brain potential changes after Choto-san administration in stroke patients with mild cognitive impairments. | Psychopharmacology 171, (3), January 2004, 241-249 | Email: yamagu3n; Department of Internal Medicine III, Shimane Medical University, 89-1 Enya-cho, 693-8501, Izumo, Japan | Few drugs have been reported to be effective for the treatment of vascular dementia. Chotosan is a herbal medicine expected to be effectivein this condition, but it is unclear how this drug modulates brain activities and cognitive functions. P3 event- related brain potentials (ERP) provide reliable electrophysiological indices for some aspects of cognitive functions. Objectives: We measured P3 ERP to assess the effect of Chotosan administration on stroke patients with mild cognitive impairments. Methods: Choto- san was given for 12 weeks to ten chronic stroke patients. P3 ERP were recorded before and after drug administration in a modified auditory oddball paradigm including occasional novel sounds using a high-density array EEG recording system. The reproducibility of ERP was also assessed in other ten stroke patients with a 12- week interval. Cognitive functions were assessed with the Mini Mental State Examination (MMSE) and verbal fluency test. Results : Twelve-week administration of Choto-san significantly improved MMSE and verbal fluency test scores. The reproducibility of P3 latency and amplitude to target and novel sounds was excellent. P3 latency to target sounds was shortened in association with reduced reaction time to the sounds after drug administration. Furthermore, P3 amplitude to novel sounds was enlarged and its topography shifted from central to frontal sites. Choto-san improved electrophysiological indices related to attention and decision making, in addition to neuropsychological test scores in stroke patients with mild cognitive impairments. Yuste J; Fung DYC | Inactivation of Salmonella Typhimurium and Escherichia coli O157:H7 in apple juice by a combination of nisin and cinnamon. | Journal of Food Protection 67, (2), February 2004, 371-377 | Email: dfung; Department of Animal Sciences and Industry, Kansas State University, Call Hall, Manhattan, KS, 66506, USA | Pasteurized apple juice with nisin (0, 25, 50, 100, and 200 ppm, wt/vol) and cinnamon (0 and 0.3%, wt/vol) was inoculated with Salmonella Typhimurium and Escherichia coli O157:H7 at 104 CFU/ml and stored at 5 and 20DegC. Counts on tryptic soy agar (TSA), selective medium (xylose lysine desoxycholate agar for Salmonella Typhimurium, and MacConkey sorbitol agar for E. coli O157:H7), and thin agar layer (TAL) were determined at 1 h and 1, 3, 7, and 14 days. The TAL method (selective medium overlaid with TSA) was used for recovery of sublethally injured cells. The pathogens were gradually inactivated by the acidic pH of apple juice. Nisin and cinnamon greatly contributed to the inactivation. The killing effect was more marked at 20DegC, with counts in all treated samples being undetectable by direct plating in 3 days for Salmonella Typhimurium and 7 days for E. coli O157:H7. Thus, several factors influenced the decrease in counts: low pH, addition of nisin and cinnamon, and storage temperature. The TAL method was as effective as TSA in recovering injured cells of the pathogens. The combination of nisin and cinnamon accelerates death of Salmonella Typhimurium and E. coli O157:H7 in apple juice and so enhances the safety of the product. Best regards, Email: < WORK : Teagasc Research Management, Sandymount Ave., Dublin 4, Ireland Mobile: 353-; [in the Republic: 0] HOME : 1 Esker Lawns, Lucan, Dublin, Ireland Tel : 353-; [in the Republic: 0] WWW : http://homepage.eircom.net/~progers/searchap.htm Quote Link to comment Share on other sites More sharing options...
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