• Title/Summary/Keyword: anthelmintic

Search Result 100, Processing Time 0.032 seconds

What Can Caenorhabditis elegans Tell Us About Nematiocides and Parasites\ulcorner

  • Dent, Joseph A.
    • Biotechnology and Bioprocess Engineering:BBE
    • /
    • v.6 no.4
    • /
    • pp.252-263
    • /
    • 2001
  • Nematode infections compromise human health and reduce agricultural productivtiy. Experiments that exploit the powerful molecular genetics of the free-living nematode Caenorhabdl - elegans have contributed to our understanding of how the major classes of anthelmintic nema-tocides kill worms and how worms might evolve resistance to these drugs In C. elegans, as in parasites, benzimidixoles interfere with microtubule polyumerization the imidazothiazoles/tetra-hydropyrimidines activate nicotinic acetylcholine receptors, and the macrocyclic la ctones activate qlutamate-gate chloride chanels. Mutant alleles of genes that encode drug targes often confer resistance in C. elegans. Preliminary evidence suggests that alleles of homologous genes in parasites will, in many cases, also play a role in resistance. Thus information acquired from C. elegans can be usefully applied to understand the mechanisms of drug sensitivity and the genetics of resis-tance in parasites.

  • PDF

Anthelmintic Effects of Aspidium against Hymenolepis diminuta in Rat (면마(綿馬)의 흰쥐 조충(條蟲)에 대(對)한 구충효과(驅蟲效果))

  • Kim, Nak-Doo;Baik, Chull-Ki;Kim, In-Chull
    • Korean Journal of Pharmacognosy
    • /
    • v.8 no.3
    • /
    • pp.121-124
    • /
    • 1977
  • Aspidium ether extract was obtained from Dryopteris crassirhizoma(Aspidiaceae), which is widely distributed in Korea and its vermicidal effect on the rats infected with Hymenolepis diminuta was investigated. Effects of Aspidium ether extract purchased from the market, several fractions obtained from the seed of Torreya nucifora and bithionol were also compared. Vermicidal effect of Aspidium against Hymenolepis diminuta was found only in one-third of the rats used for investigation and the effect of the fresh Aspidium ether extract was similar to that of Aspidium ether extract purchased from market. However, it was observed that the whole seeds of Torreya nucifera (Torreyaceae) and its residue from which oil fraction was removed as well as bithionol were highly effective against Hymenolepis diminuta.

  • PDF

Effect of Cassava Hay in High-quality Feed Block as Anthelmintics in Steers Grazing on Ruzi Grass

  • Wanapat, Metha;Khampa, S.
    • Asian-Australasian Journal of Animal Sciences
    • /
    • v.19 no.5
    • /
    • pp.695-698
    • /
    • 2006
  • Six, one-year old dairy steers were randomly divided into two groups according to a Completely randomized design (CRD) to receive high-quality feed block (HQFB) without cassava hay and drenching (HQFB1+Ivomex) and HQFB with cassava hay (HQFB2) as block licks while grazing on Ruzi grass pasture. During the eight weeks, fecal parasitic egg counts dramatically declined for both treatment groups with 63.2 and 27.6% reduction from initial period for HQFB1+Ivomex and HQFB2, respectively. However, digestion of coefficients of nutrients particularly OM, were significantly higher in HQFB2 than, those in HQFB1+Ivomex, in addition, ADG of animals in HQFB2 tended to be higher than the group on HQFB1. It was, hence concluded that cassava hay could not only provide as a protein source but also serve as an anthelmintic in ruminants.

Bauhinia variegata Linn. (Mountain Ebony): a review on ethnobotany, phytochemistry and pharmacology

  • Mali, Ravindra G;Dhake, Avinash S
    • Advances in Traditional Medicine
    • /
    • v.9 no.3
    • /
    • pp.207-216
    • /
    • 2009
  • Bauhinia variegata Linn (Mountain Ebony) is a medium-sized, deciduous tree, found throughout India, ascending to an altitude of 1,300 m in the Himalayas. The plant is widely used by the tribals throughout India and popular in various indigenous systems of medicine like Ayurveda, Unani and Homoeopathy. Following the various traditional claims on utility of this plant in curing number of diseases, considerable efforts have been made by researchers to verify its utility through pharmacological screenings. The notable biological activities reported are anthelmintic, antiulcer, antitumour, antimicrobial, anti-inflammatory, antigoitrogenic, hepatoprotective and haemagglutination. Industrially, the plant is widely used for the manufacture of wood wool board, production of tannin, oil, gum and fibre. The plant is also utilized for afforestation to conserve the nature. In this article, a comprehensive account of the cultivation, microscopy, phytochemical investigation, traditional and biologically evaluated medicinal uses of B variegata is presented.

Four Human Cases of Acanthotrema felis (Digenea: Heterophyidae) Infection in Korea

  • Chai, Jong-Yil;Kim, Jae-Lip;Seo, Min
    • Parasites, Hosts and Diseases
    • /
    • v.52 no.3
    • /
    • pp.291-294
    • /
    • 2014
  • Acanthotrema felis is an intestinal trematode of cats originally reported from the Republic of Korea. Only 1 human case infected with a single adult worm has been previously recorded. In the present study, we report 4 human cases infected with a total of 10 worms recovered after anthelmintic treatment and purging. All 4 patients reside in coastal areas of Jeollanam-do, Korea, and have consumed brackish water fish including the gobies, Acanthogobius flavimanus. The worms averaged 0.47 mm in length and 0.27 mm in width, and had 3 sclerites on the ventrogenital sac; 1 was short and thumb-like, another was long and blunt-ended, and the 3rd was long and broad-tipped. They were identified as A. felis Sohn, Han, & Chai, 2003. Surveys on coastal areas to detect further human cases infected with A. felis are required.

Study of Literature on RADIX STEMONAE(Investigation of efficacy and pharmacological action on RADIX STEMONAE) (백부근(百部根)에 관(關)한 문헌적(文獻的) 고찰(考察) (효능(效能) 및 약리작용(藥理作用)을 중심(中心)으로))

  • Choi Hae-Yun;Kim Jong-Dae
    • Herbal Formula Science
    • /
    • v.7 no.1
    • /
    • pp.65-76
    • /
    • 1999
  • According to the study of literature on RADIX STEMONAE about its efficacy, pharmacological action, and clinical adaptive disease, the results are as follows; 1. About the efficacy of RADIX STEMONAE, it is known as moistening the lungs to arrest cough, and intestinal parasites from ancient to now, and dispelling phlegm is also known. 2. The clinical adaptation of RADIX STEMONAE is chronic bronchitis, pertussis, pulmonary tuberculosis in respiratory disease, and ascaricide for Ascaris, Enterobius vermicularis or eczema, pruritus, destroy louse for endermic liniment. 3. The pharmacological action of RADIX STEMONAE are antitussive, tuberculostatic, anthelmintic, antibacterial, antivirus, antifungal. 4. The antitussive mechanism of RADIX STEMONAE is central inhibitor for cough center of medulla oblongata, and the mechanisms of bronchial smooth muscle relax, and expectorant is also known.

  • PDF

Efficacy of Anthelmintic According to Guide for Fasciola spp. Infected Cattle( III ) (간질방제에 대한 지도효과( III ))

  • 손봉환;황현순;한태호
    • Korean Journal of Veterinary Service
    • /
    • v.15 no.1
    • /
    • pp.17-25
    • /
    • 1992
  • For evaluation on effects guiding fasciola prevention of which the specimens collected from 6,011 cows rears at 387 farms in inchon were tested to egg count examination for 4 years(1987-1990), and the questionnaire checked up 181 dairy farms for 2 years (1989-1990). The results were summarized as follows. 1. A yearly variation of fasciola infection rate above 31% were 83% In 1987, 58% in 1988, 25% in 1989, noninfection in 1990. 2. The average concentration in feces of infected dairy cattle was 79.4% below 1-10 eggs for 4 years(1987-1990) 3. In the results of the questionnaire for 2 years(1989-1990) the farmers gradually took interest in fasciola prevention. 4. To re-dose anthelmintics was 75.4% in 1989 and 82.5% in 1990 after 5∼7 months from previous dosage.

  • PDF

Pharmacognostical Evaluation of the Bark of Careya arborea (Roxb.)

  • Bharathi, R Vijaya;Rajendran, K.;Saeed, Mustafa Mohamed Ali;Kaur, Rubina;Lakshmi, SN Soundarya;Vasanthi, RK
    • Natural Product Sciences
    • /
    • v.14 no.4
    • /
    • pp.221-226
    • /
    • 2008
  • The bark of Careya arborea Roxb. (Barringtoniacae) is used against various disorders in Indian systems of medicine, namely astringent, anthelmintic, in tumors, dyspepsia, colic, bronchitis, urinary discharges, piles, lecucoderma, skin diseases, epileptic fits, diarrhoea. The juice of the fresh bark with honey is given as a demulcent in coughs and colds, infusion of the fresh bark is used to treat snake bite by applying to the bitten part and also taken internally. The present communication deals with the detailed pharmacognostical evaluation of the bark sample using light and confocal microscopy, WHO recommended physico-chemical determinations and authentic phytochemical procedures. The physico-chemical, morphological and histological parameters presented in this paper may be proposed as parameters to establish the authenticity of C. arborea bark and may possibly help to differentiate the drug from its other allied species.

Ethnobotany, Phytochemistry, and Pharmacology of Angelica decursiva Fr. et Sav.

  • Ali, Md Yousof;Seong, Su Hui;Jannat, Susoma;Jung, Hyun Ah;Choi, Jae Sue
    • Natural Product Sciences
    • /
    • v.25 no.3
    • /
    • pp.181-199
    • /
    • 2019
  • Angelica decursiva Fr. et Sav. (Umbelliferae) has traditionally been used to treat different diseases due to its antitussive, analgesic, and antipyretic activities. It is also a remedy for thick phlegm, asthma, and upper respiratory infections. Recently, the leaf of A. decursiva has been consumed as salad without showing any toxicity. This plant is a rich in different types of coumarin derivatives, including dihydroxanthyletin, psoralen, dihydropsoralen, hydroxycoumarin, and dihydropyran. Its crude extracts and pure constituents possess anti-inflammatory, anti-diabetic, anti-Alzheimer disease, anti-hypertension, anti-cancer, antioxidant, anthelmintic, preventing cerebral stroke, and neuroprotective activities. This valuable herb needs to be further studied and developed not only to treat these human diseases, but also to improve human health. This review provides an overview of current knowledge of A. decursiva metabolites and their biological activities to prioritize future studies.

Observation of mucosal pathology after praaiquantel treatment in experimental Fibricola seoulensis infection in rats (Fibricola seoulensis에 감염된 흰쥐 소장 병변의 프라지콴텔 치료 후 변화)

  • 이순형;김병일
    • Parasites, Hosts and Diseases
    • /
    • v.27 no.1
    • /
    • pp.35-40
    • /
    • 1989
  • It is well known that the duodenum of mice or rats infected with Fibricoln seoulensis shows atrophy of villi (shortening, blunting, widening, fusion) and hyperplasia of crypts. This study was performed to observe healing process of .these pathological changes after deworming with anthelmintic treatment. Albino rats infected each with.1,000 metacercariae of F. seeulensis were treated with single dose of 10 mg/kg praziquantel on day 15 post·infection. On day 1, 3, 5, 7, 15, 21 and 28 after the treatment, they were sacrificed and their duodenums were histopathologically studied. Control (uninfected) rats showed their normal finger-like projections of duodenal villi and well arranged crypts. In comparison, untreated (infected) contiols revealed severe mucosal changes characteristic of villous atrophy and crypt hyperplasia in their duodenum. The damaged duodenal mucosa was found to restore its normal morphology after praziquantel treatment; until day 3 post-treatment the mucosa was severely atrophied; on day 5 long and slender villi sometimes appeared among the fused and stout ones; after day 15 the villi were in their normalising process. From this experiment, it was shown that the mucosal changes in the duodenum of rats caused by F. seoulensis infection were completely reversible in 21∼28 days after anthelmintic treatment.

  • PDF