Folia Parasitologica, vol. 36 (1989), issue 2

Life cycle of Eimeria coecicola Cheissin, 1947.

M Pakandl

Folia Parasitologica 36[2] 97 (1989)

Life cycle of Eimeria coecicola was studied in experimentally infected rabbits by light microscopy and by transmission and scanning electron microscopy. First and second generation meronts developed in the vermiform appendix; third and fourth generation meronts were located in the epithelium of the ileum. Gametogony developed again in the vermiform appendix. The prepatent period was 9 days. New data were obtained by the study of asexual reproduction. First generation meronts were first observed 4 days post infection (DPI), which is relatively late in comparison with other species of rabbit coccidia. Sporozoites were found in lymphatic follicles of...

Continuous culture of Plasmodium falciparum asexual stages in "normal" air atmosphere.

P Mirovský

Folia Parasitologica 36[2] 107-112 (1989)

The growth of six strains of Plasmodium falciparum in 5% CO2, 5% O2, 90% N2 and normal air atmosphere was determined daily by microscopical examination of blood films. All strains were able to grow in flasks without additional gas mixture but significantly lower parasitaemia was observed within the first five days of cultivation. Attempt at cultivating in petri dishes without candle jar technique failed but parasites survived in plasticine sealed dishes. The cultivation in air cannot be recommended for cultures initiated from cryopreserved material or low parasitaemia (0.1-0.3%) cultures.

NOTES ON UROCLEIDOIDES-RETICULATUS MIZELLE ET PRICE, 1964 (MONOGENEA, ANCYROCEPHALINAE)

R ERGENS, F MORAVEC

Folia Parasitologica 36[2] 113-115 (1989)

Effect of T-activin on the course of experimental infection with Taenia crassiceps (Zeder, 1800) in mice.

J Hermánek, J Prokopic

Folia Parasitologica 36[2] 117-125 (1989)

T-activin--an immunomodulating preparation of polypeptidic character prepared from calf thymus--was used for influencing the course of infection in a model system mouse-Taenia crassiceps. A single s.c. application of 100 micrograms of T-activin at various intervals before and after infection resulted in a marked decrease in the number of cysticerci in peritoneal cavities of experimental mice (by 47.1-93.6%) compared to the controls. After s.c. application of T-activin and i.p. injection of antigen (crude T. crassiceps larvae homogenate from mice) the decrease in the cystricercus number was still more pronounced than in the mouse groups receiving only...

OBSERVATIONS ON SOME NEMATODES PARASITIC IN JAPANESE FRESH-WATER FISHES

F MORAVEC, K NAGASAWA

Folia Parasitologica 36[2] 127-141 (1989)

3 SPECIES OF PHILOMETRID NEMATODES FROM FISHES IN JAPAN

F MORAVEC, K NAGASAWA

Folia Parasitologica 36[2] 143-151 (1989)

MORPHOLOGY OF CUCULLANUS-RITAI KARVE, 1952 AND REMARKS ON THE VALIDITY OF THE GENUS PARACUCULLANELLUS-AGRAWAL, 1965 AND ITS TYPE SPECIES

NC DE

Folia Parasitologica 36[2] 153 (1989)

Blood groups and filariasis.

H Kumar, S Santhanam

Folia Parasitologica 36[2] 163-167 (1989)

Only a little is known about the studies done with filariasis in relation to blood groups. The present communication reports the results of a preliminary study carried out to investigate any relationship of ABO and Rho(D) blood groups in persons with circulating microfilariae (mf) in blood and with disease manifestations compared with healthy normal controls within a population in similar epidemiological and ecological conditions. Blood groups ABO and Rho(D) were investigated among 271 persons with filarial disease and 172 normal subjects from an endemic area of bancroftian filariasis. No relationship was observed between infection and blood groups....

Brugia malayi: status of host during different stages of infection.

A Joshi, J K Saxena, P K Murthy, A B Sen, S Ghatak

Folia Parasitologica 36[2] 169-175 (1989)

The status of glycogen, protein, lipid components, lipid peroxides and a few enzymes of energy metabolism was studied in liver of Mastomys natalensis during the development of Brugia malayi infection. Glycogen and lipid contents were decreased during the patent phase of infection while total protein was slightly altered in latent animals. Phospholipid and triglyceride contents declined at prepatent and patent phase of infection. The levels of lactate and malate dehydrogenases, as well as of adenosine triphosphatases (Na+K+, Mg2+, Ca2+), were significantly elevated and monoamine oxidase activity was decreased at patent phase of infection, while succinic...

A hybrid swarm of Ixodes dammini and Ixodes scapularis (Acari: Ixodidae).

W D McEnroe, S Race

Folia Parasitologica 36[2] 175-176 (1989)

An analysis of Trichinella pseudospiralis excretions and study of their effect on striated muscles of mouse.

J Zenka, D Hulínská, A Jegorov

Folia Parasitologica 36[2] 177 (1989)

The causes of changes observed after infection of muscles with Trichinella pseudospiralis larvae were studied. The changes are not only regressive, but also proliferative (activation and mitosis of satellite cells and formation of new myotubes). By means of high-performance liquid chromatography (HPLC) and an original method it was found that T. pseudospiralis larvae excrete into their environment among others a great amount of n-butylamine. A direct application of n-butylamine into the gluteal muscle of mouse supported the assumption that this amine is one of the factors causing the changes in muscles induced by T. pseudospiralis infection. The application...

Introduction of the tick Rhipicephalus sanguineus to Czechoslovakia: an additional case.

V Cerný

Folia Parasitologica 36[2] 184 (1989)

Regeneration in mouse skeletal muscle injured by Trichinella larvae.

D Hulínská, M Grim, M Vojtísek, J Zenka

Folia Parasitologica 36[2] 185 (1989)

During the infection caused by Trichinella pseudospiralis serious damage to muscles is partly compensated with regeneration process. Short, thin fibrillae with central position of the nuclei--regenerating myotubes originate 20--40th day post infection in endomysial tubes remaining after damaged muscle fibres, left by migrating larva. On the 10th day post infection in the vicinity of moving larva activation of nuclei and increased origin of satellite cells under basal membrane occur. With development of the infection endothelia in the vicinity of altered fibrillae are increasing in number but there is small inflammatory and fibroproductive reaction...

ACTIVE MOVEMENT OF THE EGGS OF THE TAPEWORM ANONCHOTAENIA-GLOBATA (LINSTOW, 1879)

B RYSAVY

Folia Parasitologica 36[2] 191-192 (1989)