The author studied the infection rates of Clonorchiis sinensis in the inhabitants of Kyungpook Province, and surveyed infestation rates of Clonorchis metacercarias in the twelve kinds of fresh water fishes for the purpose of the eradication. plan of clonorchiasis of Kyungpook Province. The examination was continued from April 1960 to October 1962 with 24,252 inhabitants ranging from four months to over sixty aged. All the family were tested intradermally with Clonorchis antigen and then confirmed the eggs by M.G.L. technique. The results of the examination were summarized as follows. I. The infection rate of the inhabitants; In the people tested, 27.7 percent was infected with Clonorchis sinensis. There were no remarkable differences in the infection rates among each Districts; River side inhabitants(Yungchun-Gun 23.6 percent, Andong-Gun 27.4 percent), paddy field inhabitants(Yungchun- Gun 23.6 percent, Sangchu-Gun 29.1 percent) and mountain side inhabitants (Chungsong-Gun 23.8 percent, Yungyang-Gun 27.7%). However, the infection rates of the river side peoples were slightly higher than that of the districts far from the river. The infection rate of the male was 34.98 percent (4 ,628 out of 12,230), while the female was 18.96 percent (2090 out of 11022). The maximum infection rate of the male group was observed in the 35-39 age group (73.8 %) and in female, 55-59 age group (34.l percent) respectively, however it was gradually decreased in the senile group. II. The infection rates of the family group; Those infected in both husband and wife were 28 percent(357 out of 1,289), husband only was 52 percent (672 out of 1,289) and wife only was 4 percent (50 out of 1,289). The children of the infected parents revealed higher morbidity than that of the non-infected parents. The children of the infected father revealed much morbidity than that of the mother's side. On the contrary, children's morbidity rate of the infected widow was higher than that of the widower. III. The infestation rates of fresh water fishes; The metacercaria of Clonorchis sinensis was found in the flesh exclusive of the Misgurnus anguillicaudatus and Zacco platypus in the 11 kinds of fresh water fishes. The maximum infestation rate of 55.8 percent was revealed at Pseudorasbora parva and next to it was Sarcocheilichthys wakiyae of 5l.7 percent. The number of metacercaria in flesh was decreased as compared to the previously examined level.
parasitology-helminth-trematoda-Clonorchis sinensis ; epidemiology ; Misgurnus anguillicaudatus ; Zacco platypus ; Sarcocheilichthys wakiyae ; Pseudorasbora parva

No abstract available.
Typhoid Fever*

Metacercariae of Centrocestus species were found from a brackish water fish, Tribolodon taczanowskii Steindachner in the downstream of Hyungsan river. Thirty one fishes out of 154 examined (31.8 percent ) were infected with the metacercariae of Centrocestus. sp. Metacercariae were fed to the mouse experimentally and adult worms were recovered from the intestinal mucosa. And they were identified C. asadai Mishima and compared with the prereported Centrocestus sp.
parasitology-helminth-trematoda-Centrocestus asadai ; Tribolodon taczanowskii ; metacercariae

No abstract available.
Abruptio Placentae* ; Female ; Pregnancy

No abstract available.
Abruptio Placentae* ; Female ; Pregnancy

Ginseng Radix(GR) had been used widely from oriental medicine and the effects of it have been investigated by many researchers. The purpose of present study was to investigate the effects of GR on the cell cycle progression and its molecular mechanism in human fetal osteoblast. The results were as follows. Increased cell proliferation was observed in cells exposed to 100 ng/ml, 10 ng/ml of GR-1 at 12 hours and 24 hours, 1 microgram/ml of GR-1 at 48 hours, and 100 microgram/ml, 10 microgram/ml of GR-2 at 12 hours, all treatment groups of GR-2 at 24 hours(p<0.05). S phase and G1 phase was increased in the group of treated with 100 ng/ml of GR-1, with 10 microgram/ml and 1 microgram/ml of GR-2, with 100 microgram/ml and 10 microgram/ml of GR-3 in the cell cycle analysis. The cell cycle regulation protein levels of Cyclin D1, Cyclin E, CDK 2, CDK 4 and CDK 6 were increased in the group of treated with 1 microgram/ml and 100 ng/ml of GR-1, with 10 microgram/ml and 1 microgram/ml of GR-2, with 100 microgram/ml and 10 microgram/ml of GR-3. On the other hand, p21 was decreased in the treatment group with 1 microgram/ml and 100 ng/ml of GR-1, with 10 microgram/ml and 1 microgram/ml of GR-2, 10 microgram/ml of GR-3, and p53 and p16 was decreased in the treatment group with 100 ng/ml of GR-1, 100 microgram/ml GR-3 and pRb was decreased in the all treatment groups except 1 microgram/ml of GR-1. These results suggested that GR increases the cell proliferation and the cell cycle progression in human fetal osteoblast, which is linked to increased cell cycle regulation protein levels of Cyclin D1, Cyclin E, CDK 2, CDK 4, CDK 6 and decreased cell cycle regulation protein levels of p21, pRb.
Humans

Recently, many natural medicines, whose advantages are less side effects and possibility of long-term use, have been studied for their capacity, their anti-bacterial and anti-inflammatory effects and regenerative potential of periodontal tissues. Cervi Parvum Cornu(CPC) have been traditionally used as an hale, growth, hematogenous, anti-aging, back pain in Eastern medicine. The purpose of present study was to investigate the effects of CPC extract on cell cycle progression and its molecular mechanism in human fetal osteoblasts. CPC extracts (10 microgram/ml) increased cell proliferation in the human fetal osteoblasts as compared to non-supplemented control. There was no significant change in the G1 and S phase, but a increase in the G2/M phase in 10 microgram/ml and 100 microgram/ml of CPC extracts group as compared to non-supplemented control. The protein expression of cyclin E, cdk 2, cyclin D, cdk 4, and cdk 6 was higher than that of control group. The level of p21 was lower than that of control. But that of pRb and p16 was not distinguished from control. These results indicate that the increase of cell proliferation by CPC extracts may be due to the increased expression of cyclin E , cdk 2, cyclin D, cdk 4 and cdk 6, and the decreased expression of p21 in human fetal osteoblasts .
Back Pain ; Cell Cycle* ; Cell Proliferation ; Cyclin D ; Cyclin E ; Cyclins ; Humans* ; Osteoblasts* ; S Phase

BACKGROUND: The cell-mediated immunity is needed for eradicating the tubercle bacilli. Prosta- glandin(PG), especially PG E2, is involved in cellular immunosuppression. It is known that the PG E2 is suppressed by indo- methacin. For using indomethacin as a immunomodulator of intractable pulmonary tuberculosis(Tbc) patients, we measured the tuberculin skin test(TST) and the plasma PG E2 levels. METHOD: The forty-eight inpatients with sputum positive acid-fast stain bacilli were classified into 6 groups according to antiTbc chemotherapy history(new and intractable cases), plain chest roetgenogram(minimal and far advanced cases), and TST reaction(nagative and positive cases). Except for one group(n=2; new, minimal, and negative cases of TST reaction) of the 6 groups, all subjects(n=46) were measured for the plasma PG E2 levels with radioimmunoassay. RESULTS: 1) There was no significiant difference in the plasma PG E2 levels among A group(far advanced and positive TST reaction cases, n=10, 11.22 +/-2.86 pg/ml), B group(minimal and negative TST reaction cases, n=9, 11.35 +/-2.20) and C group(far advanced and positive TST reaction cases, n=7, 11.11+/-2.30) in the new cases(p >0.05). 2) There was no significiant difference in the plasma PG E2 levels between positive(n=10, 9.25 +/- 2.21) and negative(n=10, 8.25 +/- 1.13) groups by TST in the intractable cases(p>0.05). 3) Comparing the plasma PG E2 levels between new(n=26, 11.35 +/-2.41) and intractable(n=20, 8.75 1.78) groups, the intractable group had significi- antly lower plasma PG E2 levels(p<0.05). 4) There was no significiant difference in the plasma PG E2 levels between negative(n=19, 9.88 +/-2.43) and positive(n=27, 10.46 +/-2.56) groups by TST(p>0.05). 5) There was no significiant difference in the plasma PG E2 levels between male(n=32, 10.07 +/- 2.44) and female(n=14, 10.56 +/-2.70)(p >0.05). 6) There was no significiant difference in the plasma PG E2 levels among 2nd(n=5, 10.21 +/-2.86), 3rd(n=9, 9.97+/-2.47), 4th(n=13, 11.35+/-2.33) and 5th(n=19, 9.57+/-2.48) decades(p>0.05). 7) There was no significiant correlation between the induration sizes of the TST and the plasma PG E2 levels(r=0.054, p>0.05). CONCLUSION: From the above results, the plasma PG E2 levels of intract- able group are not higher as the authors had expected. There was no significiant difference in the plasma PG E2 levels by the lesion sizes of plain chest roetgengram and the induration sizes of TST, so more study will be needed to use the indomethacin as a immunomodulator for intractable pulmonary thberculosis patients.
Dinoprostone* ; Drug Therapy ; Humans ; Immunity, Cellular ; Immunosuppression ; Indomethacin ; Inpatients ; Oxyphenonium ; Plasma* ; Radioimmunoassay ; Skin Tests* ; Skin* ; Sputum ; Thorax ; Tuberculin* ; Tuberculosis, Pulmonary*

Gingival fibroblasts are major cellular component of gingiva. However, the molecular mechanisms of senescence of human gingival fibroblasts are unknown. Human fibroblasts undergo replicative senescence in vitro after a limited number of population doublings. A reduced rate of proliferation is a prominent phenomenon observed in senescent fibroblasts. This phenomenon is happened with cell cycle arrest that was controled by cell cycle regulatory proteins. The purpose of present study was to investigate the effect of replicative senescence on cell cycle progression and to find out its molecular mechanisms in human gingival fibroblasts. Replicative senescence of gingival fibroblasts were induced by subsequent cultures that were repeated up to 18 passage. In the present study, I examined change of cell proliferation, cell activity, cell viability and cell cycle progression during the replicative process. Also, I examined expression of cell cycle regulatory proteins which was estimated by western blot analysis. Cell proliferation, cell activity and cell viability of gingival fibroblasts were notably decreased with increase of population doubling level(PDL). S phase was decreased and G1 phase was increased with increase of PDL. Western blot analysis showed that levels of p16, p21 and p53 of senescent gingival fibroblasts(PDL41, PDL58) were higher than young fibroblasts(PDL27) and cdk4 were lower than young fibroblasts(PDL27). In conclusion, these results suggest that proliferative function of human gingival fibroblasts may be decreased by replicative senescence and its molecular mechanisms may be activatied with p16, p21, p53 and pRB, and repressed wtih cdk4.
Aging ; Blotting, Western ; Cell Aging* ; Cell Cycle Checkpoints ; Cell Cycle Proteins ; Cell Cycle* ; Cell Proliferation ; Cell Survival ; Fibroblasts* ; G1 Phase ; Gingiva ; Humans* ; S Phase

Several growth factors and polypeptides were studied for the regeneration of periodontal supporting tissues which had been lost due to periodontal disease. But these are not commonly used for regenerators of bone tissue or alveolar bone, because of the insufficiency of studies on their side effects, genetic engineering for mass production and stability for clinical application. Recently, many natural products, which have advantage of less side effects and possibility of long-term use, have been studied for their capacity and effects of anti-bacterial, anti-inflammatory and regenerative potential of periodontal tissues. Cnidii Rhizoma, Rhinocerotis Cornu and Drynariae Rhizoma have been traditionally used as a drug for treatment of bone disease in oriental medicine. The purpose of this study was to examine the ability of alkaline phosphatase synthesis of MC3T3-E1 cells when above medicines were supplimented. MC3T3-E1 cells were cultured with alpha-MEM(negative control), dexamethasone(positive control), and each natural products for 3 and 5 days. And then ALP synthesis was measured by spectrophotometer for enzyme activity and by naphthol AS-BI staining for morphometry. Except Cnidii Rhizoma, all of the natural products of this study induced higher activity of ALP synthesis than controls. Among them Drynariae Rhizoma induced the highest activity. In the aspects of culturing time, all medicines did not showed the difference between 3 and 5 days, but 10-7g/ml group of Rhinocerotis Cornu showed significant increase at 3 days than at 5 days. These results indicate that several natural products have a inducing ability of ALP synthesis on osteoblasts.
Alkaline Phosphatase* ; Biological Products* ; Bone and Bones ; Bone Diseases ; Genetic Engineering ; Intercellular Signaling Peptides and Proteins ; Medicine, East Asian Traditional ; Osteoblasts ; Peptides ; Periodontal Diseases ; Polypodiaceae ; Regeneration