1.A Case report of sparganosis.
Byong Seol SEO ; Han Jong RIM ; Jong June YOON ; Dong June LEE
The Korean Journal of Parasitology 1964;2(3):179-182
A case of sparganosis was presented. The patient was a 43-year-old Korean male who had a history of having eaten raw flesh of snake and frog in Keoje Island during 1950 to 1952 for the purpose of treatment of arthritis by the oriental custom. In the summer, l959, he had slight itching sensation in the left lower scrotal area. A few months later, he noticed the appearance of a peanut-sized mass in that area. However, the mass enlarged gradually to a hen's egg size during two years. On surgical exploration, the mass was found to be a fibro-connective tissue capsule(3 to 4 cm in diameter) in the lower left scrotal area. From the capsule three larvae(l9 to 28 cm by 2 to 6 mm) were freed by dissection without much difficulty. The sources of infection of some formerly reported sparganosis in Korea were discussed. It is most probable that human sparganosis is acquired by ingestion of raw flesh of snake and frog in this country.
parasitology-helminth-cestoda-sparagnum
;
sparganosis
;
case report
2.Studies on the parasitic helminths of Korea III. Nematodes and cestodes of rodents.
Byeong Seol SEO ; Han Jong RIM ; Jong June YOON ; Bon Yong KOO ; Nam Tae HONG
The Korean Journal of Parasitology 1968;6(3):123-131
A survey for nematode and cestode parasites of rodents in Korea has been carried out at the areas of Chulwon, Kumwha, Pochon, Paju and Chungpyong, Kyunggi-Do. A total of 300 rodents of seven species was examined, comprising of 219 A. agrarius, 33 R. norvegicus, 8 R. alexandrinus, 14 Mus musculus yamashinai, Microtus fortis pellceus, 21 Crocidura russula and a Cricetulus trition nester. The following fifteen species belonging to thirteen genera were identified: NEMATODA: Heterakis spumosa, Syphacia obvelata, Nippostrongylus muris, Protospirura muris, Capillaria hepatica, Capillaria sp., Heligmosomum sp., Heligmosomoides sp., Rictularia sp. and Gongylonema sp. CESTODA: Hymenolepis nana, Hymenolepis diminuta, Raillietina coreensis, Paranoplocephala sp. and Cysticercus fasciolaris(the larva of Taenia taeniaeformis).
parasitology-helminth-nematoda-cestoda
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Heterakis spumosa
;
Syphacia obvelata
;
Nippostrongylus muris
;
Protospirura muris
;
Capillaria hepatica
;
Capillaria sp.
;
Heligmosomum sp.
;
Cysticercus fasciolaris
;
Taenia taeniaeformis
;
epidemiology
;
rodent
3.The epidemiological studies on the filariasis in Korea II. Distribution and prevalence of malayian filariasis in southern Korea.
Byong Seol SEO ; Han Jong RIM ; Young Chan LIM ; Il Kwon KANG ; Young Ok PARK
The Korean Journal of Parasitology 1968;6(3):132-141
During 1964 to 1967, a survey of 30,534 persons for filariasis was made on all over the country with the following results: Among 24,816 draftees from all over the country in the army recruitment camp 155(0.63 %) were found infected with Brugia malayi. Cheju Do showed the highest microfilaria rate(3.5 %), North Kyongsang Do(1.4 %) the next and South Cholla Do(1.2 %) the third. Blood films from 2,308 inhabitants were examined and 407(17.6 %) showed microfilaria in Cheju Do. 30(3.1 %) out of 974 inhabitants in North Kyongsang Do were found to be infected. The microfilaria rates were 2.0 per cent for 400 inhabitants of Chindo island in South Cholla Do. However, no positive case of microfilaria was found in the inhabitants of Kokumdo among 1,820 persons examined in South Cholla Do and of Namhae island(among 165 persons examined) in South Kyongsang Do. The mean microfilarial density per 20 cu. mm of blood was 52.6 in the inhabitants of Cheju Do, 12.2 in North Kyongsang Do and 27.3 in Chindo island(South Cholla Do). Any distinct relationship between the incidence of positive cases of microfilariae and age or sex of the cases was not observed in Cheju Do. However, in Norh Kyongsang Do and South Cholla Do the microfilaria rate of the male group is higher than the one of the female group of the inhabitants. From the above survey results it turned out that filariasis was found throughout Southern Korea except Kyonggi Do and South Kyongsang Do. A total 30,534 persons examined, 601(2.0 %) were found to be infected by Brugia malayi. Therefore, it seems that there are some endemic foci of malayian filariasis in three main areas such as North Kyongsang Do, South Cholla Do and Cheju Do.
parsitology-helminth-nematoda-Brugia malayi
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filariasis
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epidemiology
;
Army
4.Metabolism of C(14)-glucose by Paramphistomum cervi.
Byong Seol SEO ; Han Jong RIM ; Sang Il LEE ; Dae Kwan PARK ; Sang Chan MOON
The Korean Journal of Parasitology 1965;3(1):5-9
The trematode Paramphistomum cervi empolyed in this experiment was obtained from the reticulum of cattle slaughtered at the local abbatoir. The worms were selected and washed several times in normal sterilized saline solution. Each about ten of intact worms were incubated in 50 cc volume of special incubation flasks with incubation mixture consisting of 50 cc of Krebs-Ringer phosohate buffer (pH 7.4) to which were added universally labeled C(14)-glucose and non-radioactive carrier glucose concentration of 200 mg per cent. The worms were allowed to incubate for 3 hours in the incubator at 38 C. After incubation period, respiratory CO(2) samples from central wall of incubation flask were analysed for total CO(2) production rate and their specific activity of respiratory CO(2). Glycogen samples isolated from worms were analysed for the tissue concentration and their radioactivities in order to determine the turnover rate of glycogen pool. The glucose uptake rate was determined by analysing the difference of the glucose concentration in a medium before and after incubation period. Radioactivities of these series of experiments were counted by an endwindow Geiger-Muller counter as an infinitely thin samples. The quantitative analysis of C(14)-glucose utilized by Paramphistomum cervi was summerized as the following. The glucose uptake rate by Paramphistomum was a mean value of 2.32+/-0.27 micro-mole/hr/g of wet wt. and total CO(2) production rate by the worms averaged 10.85+/-0.41 micro-mole/hr/g of wet wt. The relative specific activities of respiratory CO(2) averaged 49.72+/-13.20 per cent. Thus, a mean of 49.72 per cent of total CO(2) production rate was originated from the glucose in the medium, therefore the rate of CO(2) production derived from medium glucose was mean of 5.24+/-2.16 micro-mole/hr/g of wet wt. Thus, the average value of 37.46+/-5.28 per cent of glucose utilized by the worms from the medium glucose was oxidized to respiratory CO(2). The tissue concentration of Paraphismum was a mean of 41.56+/-5.82 micro-mole/hr/g of wet wt or 4.16+/-0.72 per cent/g , and the turnover rate of glycogen pool yielded with a mean of 0.12+/-0.014 percent/hr or 0.06+/-0.04 mg/hr/g of wet wt. Therefore, a mean value of 16.75+/-4.84 per cent of glucose was incorporated to the glycogen. These data account for that at least 54.21 per cent of the utilized glucose by the worms participated in furnishing the oxidation into respiratory CO(2) and the synthetic process into glycogen. According to the above data of the experiment, it is suggested in the metabolic process of glucose by the Paramphistomum that the synthetic process into the glycogen is less active than the oxidative process into the resppiratory CO(2).
parasitology-helminth-trematoda
;
Paramphistomum cervi
;
autoradiography
;
biochemistry
;
glucose
;
metabolism
;
CO(2)
;
glycogen
5.An evaluation of cellophane thick smear technique for mass stool examination.
Seung Yull CHO ; Soon Hyung LEE ; Han Jong RIM ; Byong Seol SEO
The Korean Journal of Parasitology 1969;7(1):48-52
To evaluate the Kato's cellophane thick smear techcique in detection ability of various helminth ova, authors examined 1,843 nationwidely collected stool specimens by the two methods, formalin-ether technique and cellophane thick smear technique. And the results were analyzed. The positive rates of following helminth ova were superior in cellophane thick smear technique to those of formalin-ether technique: Ascaris lumbricoides(62.3% : 51.1%), Taenia species (1.5% : 0.9%). The difference in A. lumbricoides ova detection is highly significant one. The overall positive rate for helminths ova was also higher in Kato's method (92.3% : 90.0%). The positive fates of following helminth ova were infrior in cellophane thick smear technique to those of formalin-ether technique: Hookworm (5.8% : 14.6%), Trichostrongylus orientalis(3.2% : 17.8%), Clonorchis sinensis(8.3% : 11.0%), Metagonimus yokogawai (0.6% : 1.7%) and Hymenolepis nana(0.05% : 0.3%). The positive rate for the ova of Trichocephalus trichiurus by the two methods was incidentally same, 74.1%. The causes of inferior positive rates in some helminth ova by cellophane thick smear technique were shortly discussed and suggests some opinions in improvement of detection ability.
parasitology-helminth-nematoda
;
diagnosis
;
Ascaris lumbricoides
;
Taenia species
;
Hookworm
;
Trichostrongylus orientalis
;
Clonorchis sinensis
;
Metagonimus yokogawai
;
Trichocephalus trichiurus
6.Metabolism of C(14)-glucose by Eurytrema pancreaticum.
Byong Seol SEO ; Han Jong RIM ; Kwang Soo KIM ; Myung Sang LEE ; Yeong Uhn KIM ; Hi Yong SONG
The Korean Journal of Parasitology 1964;2(3):175-178
The glucose uptake rate by Eurytrema pancreaticum was a mean value of 16.44 +/- 2.42 micro-mole/hr/g, and total CO(2) production rate by the fluke averaged 5.82 +/- 0.97 micro-mole/hr/g. The relative specific activity of respiratory CO(2) showed a mean value of 5.75 +/- 0.84 per cent. The rate of CO(2) production derived from medium C(14)-glucose was a mean of 0.33 +/- 0.10 micor-mole/hr/g. Therefore, the average value of 0.32 +/- 0.04 per cent of glucose utilized by the flukes from the medium C(14)-glucose was oxidized to respiratory CO(2). The tissue concentration of glycogen in E. pancreaticum was a mean of 45.50 +/- 2.18 mg/g or 4.55 +/- 0.22 %/g. But the turnover rate of glycogen pool was a mean of 0.027 +/- 0.003 %/hr or 0.009 +/- 0.002 mg/hr/g. The average value of 0.64 +/- 0.23 percent of glucose utilized by the flukes from the medium C(14)-glucose was incorporated into the glycogen. These data account for that only 1 per cent of the utilized glucose by the flukes participated in furnishing the oxidation into respiratory CO(2) and the synthetic process into glycogen.
parasitology-helminht-trematoda- Eurytrema pancreaticum
;
glucose-biochemistry
;
autoradiograhy
;
glucose
;
glycogen
;
CO(2)
7.Metabolism of C(14)-glucose by Fasciola hepatica.
Byong Seol SEO ; Han Jong RIM ; Kwang Soo KIM ; Sang Don RHEE ; Sun Jo LIM ; Wha Suk LEE
The Korean Journal of Parasitology 1964;2(3):170-174
The glucose uptake rate by Fasciola hepatica was a mean value of 9.62 +/- 0.54 micro-mole/hr/g, and total CO(2) production rate by the flukes averaged 24.28 +/- 4.26 micro-mole/hr/g wet wt. The relative specific activity of respiratory CO(2) showed a mean value of 79.89 +/- 1.78 per cent. The rate of CO(2) production derived from medium C(14)-glucose was a mean of 19.55 +/- 3.56 micro-mole/hr/g of we wt. Therefore, the average value of 32.72 +/- 4.8 percent of glucose utilized by the flukes from the medium C(14)-glucose was oxidized to respiratory CO(2). The tissue concentration of glycogen in F. hepatica was a mean of 38.36 +/- 2.91 mg/g or 3.84 +/- 0.29 %/g of wet wt, and the turnover rate of glycogen pool was a mean of 1.6+/-0.22 %/hr or 0.65 +/- 0.13 mg/hr/g. The average value of 37.26 +/- 3.86 per cent of glucose utilized by the fluke from the medium C(4)-glucose was incorporated to the glycogen. These data account for that approximately 70 per cent of the utilized glucose by the flukes participated in furnishing the oxidation into respiratory CO(2) and the synthetic process into glycogen.
parasitology-helminth-trematoda-Fasciola hepatica
;
glucose
;
biochemistry
;
autoradiograhy
;
glycogen
;
CO(2)
8.The epidemiological studies on the filariasis in Korea I. Filariasis in Cheju-Do(Quelpart Island).
Byong Seol SEO ; Han Jong RIM ; Soo Hyun SEONG ; Yong Hoon PARK ; Byong Chan KIM ; Too Bong LIM
The Korean Journal of Parasitology 1965;3(3):139-145
A night blood survey was carried out among inhabitants aged over 1 year from the fifteen villages throughout Cheju-Do (Quelpart Island). Blood films from 2,139 persons were examined and 183(8.6 percent) showed microfilariae, the incidences varying according to geographical sources are from 0.8 to 19.5 per cent. All the microfilariae found in this survey were of the nocturnal periodic Brugia malayi. The microfilarial density was 1.9 per cent of blood. The age and sex distributions of microfilaria rate in Cheju-Do were not distinctly different. On the other hand, the intradermal test using Dirofilaria antigen (FPT antigen) and clinical survey of filariasis were also undertaken in same areas of microfilaria survey. Out of 2,449 inhabitants examined 1,434(58.6 percent) persons showed positive reaction of skin test, 503(20.5 percent) persons have clinical manifestations and 112 (4.6 percent) persons showed elephantiasis . It is assumed that Aedes togoi may be the most probable vector of B. malayi in the areas of Cheju-Do.
parasitology
;
helminth
;
nematoda
;
Brugia malayi
;
epidemiolgy
;
filariasis
;
intradermal test
;
blood
9.Metabolism of C(14)-acetate by some trematodes.
Byong Seol SEO ; Han Jong RIM ; Yong Ok MIN ; Sang Don RHEE ; Tong Hoon LEE ; Myong Soon YUN
The Korean Journal of Parasitology 1965;3(3):117-121
The adult trematodes, Fasciola hepatica, Eurytrema pancreaticum and Paramphistomum cervi, employed in this experiment were obtained from the cattle slaughtered at the local abbatoir. The worms selected and washed several times in normal sterilized saline solution. Each about ten of intact F. hepatica, fourty of E. pancreaticum, and twenty of P. cervi were incubated in 50 cc volume of special incubation flasks with incubation medium consisting of 10 cc. of Krebs-Ringer phosphate buffer(pH 7.4) The incubation medium was added C(14)-1-acetate and non-radioactive carrier Na-acetate so as to contain acetate concentration of 50 mg per cent . The worms were allowed to incubate for 5 hours in the Dubnoff metabolic shaking incubator at 38 C. After incubation period, respiratory CO(2) samples from central well of incubation flask were analysed for total CO(2) production rate and their specific activity of respiratory CO(2). The lactate and pyruvate appearance rates were determined by analyzing the lactate and pyruvate concentration in a medium after incubation. The glycogen samples isolated from worms were analyzed for the tissue concentration and their radioactivities in order to determine the turnover rate of glycogen pool. Radioactivities of these series of experiments were counted by an endwindow Geiger-Muller counter as an infinitely thin samples. The quantitative analysis of C(14)-acetate utilized by F. hepatica, E. pancreaticum and P. cervi were compared and discussed in this report. According to these data of the experiment, it is suggested that the fatty acid such as acetate may play a part of their oxidative process into the respiratory CO2 and the synthetic process into glycogen in the above species of trematodes.
parasitology
;
helminth
;
trematoda
;
Fasciola hepatica
;
Eurytrema pancreaticum
;
Paramphistomum cervi
;
acetate
;
metabolism
;
biochemistry
;
CO(2)
;
glycogen
;
Krebs-Ringer phosphate buffer
10.Metabolism of C(14)-glucose by plerocercoid of Diphyllobothrium sp..
Byong Seol SEO ; Han Jong RIM ; Sang Il LEE ; Sang Don RHEE ; Wha Suk LEE ; Jae Ryong LEE
The Korean Journal of Parasitology 1965;3(1):1-4
The glucose uptake rate by plerocercoid of Diphyllobothrium sp. was a mean value of 5.35+/-0.80 micro-mole/hr/g of wet wt, and total CO(2) production rates by the plerocercoid larva averaged 7.54+/-0.73 micro-mole/hr/g of wet wt. The relative specific activity into respiratory CO(2) showed a mean value of 7.30 +/-0.90 per cent. The rate of CO(2) production derived from medium C(14)-glucose was a mean of 0.58+/-0.13 micro-mole/hr/g of wet wt. Therefore, the average value of 1.92+/-0.38 per cent of glucose utilized by the larvae from the medium C(14)-glucose was oxidized to respiratory CO(2). The tissue concentration of glycogen in plerocercoid larva was a mean of 46.28 +/-2.23 mg/g or 4.63+/-0.22 per cent/g of wet wt., and the turnover rate of glycogen pool was a mean of 0.049 +/- 0.012 %/hr or 0.010 +/- 0.003 mg/hr/g of wet wt. The average value of 2.76+/-1.00 per cent of glucose utilized by the larvae from the medium C(14)-glucose was incorporated to the glycogen. These data accounts for that only 5 per cent of the utilized glucose by the plerocercoid larvae participated in furnishing the oxidation into respiratory CO(2) and the synthetic process into glycogen.
parasitology-helminth-cestoda
;
Diphyllobothrium sp.
;
sparganum
;
plerocercoid
;
biochemistry
;
autoradiography
;
glucose
;
metabolism
;
CO(2)