• Journal of Dental Rehabilitation and Applied Science
• /
• v.33 no.2
• /
• pp.143-153
• /
• 2017

One of the common complications of dental injury is tooth ankylosis. Unlike adults, when tooth ankylosis occurs in the adolescents, ankylosis interfered the growth of the adjacent alveolar bone, resulting in the developmental failure of the alveolar bone and subsequent open bite. The most common treatment option for ankylosed tooth is extraction. However, when prognosis of ankylosed tooth after extraction is expected to be poor due to severity of infrapositioning or prosthetic replacement cannot be performed immediately, various treatment options should be considered. This report suggests multidisciplinary treatment that might bring functionally and esthetically favorable result included alveolar bone distraction osteogenesis and decoronation of ankylosed maxillary anterior tooth with orthodontic and prosthetic treatments.

• Journal of Sericultural and Entomological Science
• /
• v.39 no.2
• /
• pp.140-145
• /
• 1997

Silkworm fed on mulgerry leaves with 1000 times diluted Insegar(main component : Fenoxycarb, ethyl-2-(4-phenoxyphenoxy)ethylcarbmate) and its effects was investigated on increase of the 5th larval silkgland weight and silk quality. The oral application of fenoxycarb showed increase of the silkgland weight. The whole period of the silkgland weight falls on the 2nd instar treatment by 13%, the 3rd day of the 4th instar by 111%(3100 mg) and the whole period of the 5th instar treatment rather decreased it by 66%(497 mg), as compared to 1470mg of the control. Female and male both increased 15%(1779mg) and 12%(1554mg) of the silkgland weight with the 2nd instar treatment, as compared to 1548mg and 1391mg in control, respectively. 118%(3368mg) and 104%(2832mg) of increase in the silkgland weight were also showed with the 3rd day of the 4th instar treatment but 70%(463mg) and 61%(539mg) of decrease were shown with the 5th instar treatment. The maximum weight of the middle silkgland weight increased by 6%(1248mg) and 127%(2673mg) with the 2nd instar and with the 3rd day of the 4th instar, respectively but 67%(393mg) of decrease took place, as compared to 1175mg of the control. The maximum increase of the posterior silkgland weight with whole peried of the 2nd instar treatment increased 12%(419mg) and 75%(656mg) and 64%(135mg) of decrease was shown, as compared to 374mg of the control. The oral application of Insegar at the 2nd instar increased 26 m of cocoon length, 4.0 cg of the cocoon filament weight and 0.21d of the silk denier, as compared to 1147 m of the cocoon length, 38 cg of the cocoon filament, 2.99d of the silk denier, weight of cocoon filament and silk denier, respectively but denier variance narrowed to 0.33d, as compared to that of the control.

• The Journal of Korean Medicine
• /
• v.24 no.1
• /
• pp.1-8
• /
• 2003

Purpose : Nowadays, there are many studies of growth retardation treatment by oriental medical therapy. This study was performed to evaluate the effect of Hwalhyulsungjang-san (Huoxuechengzhang-san) and KC101 on physical development in growth, Methods : 60 young (3 weeks old) male rats, whose mean weight was $46.8{\pm}0,7g$, were divided into 5 groups : groups A, B, C, and D were fed an experimental diet containing respectively Hwalhyulsungjang-san 2.5%, Hwalhyulsungjang-san 7.5%, KC101 5.0%, and KC101 10.0%, and the other group were fed an AIN-diet containing neither Hwalhyulsungjang-san nor KC101 as a control. Study of each group used 2 rats and was repeated in 6 times. Body weight, daily weight gain, dietary intake, body length, femur length, backbone length and serum concentration of IGF-I and hemoglobin were measured. Result : 1. Body weight and daily weight gain of group D (KC101 10%) were highest; dietary intake of group D was also increased by 13% over the control group. 2. Average body length of group D was increased to 1.69cm, which was 3.2% over the control group. Backbone length of group D was also increased 4% compared to control group. 3. Serum concentration of IGF-I of group D increased 17% compared to control group. 4. Serum concentration of hemoglobin of group B (Hwalhyulsungjang-san 7.5%) increased 8% compared to control group. Conclusion : This study showed that Hwalhyulsungjang-san and KC101 composed of oriental medicinal stuffs have effect on physical development in growing rats. There were not any statistical meaning compared to control group, but this study suggests that intake of these compounds from a young age may lead to increase physical development in growth.

• Journal of the Korea Academia-Industrial cooperation Society
• /
• v.13 no.6
• /
• pp.2702-2706
• /
• 2012

In plants, factory automation systems, although most of the growth of plants by the state workforce is the restaurant to check manually. In this paper, we use two cameras to measure the plant's developmental state has been studied. Plant measurement algorithm, the camera only affordable, reliable and simple system to get the data you can build a system. In this paper, the size of plants that plant growth in the plant to measure the efficient monitoring system has been developed. By utilizing this system, the size of the plant measured data required to maintain and manage accordingly, saving time and reducing costs and improving operational efficiency of plants, plant managers, the effect could be obtained by building the actual system the performance of the proposed system was confirmed.

• Parasites, Hosts and Diseases
• /
• v.35 no.2
• /
• pp.139-142
• /
• 1997

Cleaving host immunoglobulins is a well known mechanism of evading host immune reactions exploited by helminth parasites, Secreted cysteine proteases of helminth are a part of enzymes cleaving host IgG. Porogonimw westemani produces at least six different species of the cysteine protease in its developmental stages. This study was undertaken to evaluate comparatively the activities against human IgG by the different enzymes. When the metacercariae, which secrete 27 and 28 kDa cysteine proteases, were incubated in human IgG solution, IgG was degraded at its hinge region. Further incubation resulted complete hydrolysis. From 4-week and 7-week old juveniles and 16-week old adults of p. westemani, five different enzymes at 15, 17. 27 28 and 53 kDa have been purified, if the enzyme with the same molecular mass is regarded to be identical. In cleaving human IgG, each cysteine protease exhibited decreasing activities with age.

• Journal of Life Science
• /
• v.8 no.1
• /
• pp.8-13
• /
• 1998

The maize mitochondrial mutant (NCS2) is derived from homologous recombination between genes encoding NADH dehydrogenase subunit 4 and subunit 6. Plants from mitochondria mutants exhibited severe related growth and development including dwarfism and striping on the leaves. Aborted embryos from NCS2 mutants have been rescued and cultured on the N6 medium supplemented with 2,4-D 1 mg/l. Most calli from NCS2 aborted embryos showed slow growing pattern at first stage. However, upon continuous culturing them on the medium, those were segregated into mutant and normal callus lines. These segregations could be detected by using PCR method with three primers. Such segregation seems to be resulted from the preferential growth of normal cells over the mutant cells on the normal culture condition. Therefore, this method can be used for determining rate of indirect cytoplasmic segregation by estimating amplified band intensities. When NCS2 mutant callus lines cultured on regeneration medium, no adventitious shoot induction was observed. However, callus lines with more mitochondria induced adventitious shoots. These studies suggest that mitochondria NADH-dehydrogenase for electron transport in the inner membrane of mitochondria is essential for the differentiation and development of plants.

• Journal of Plant Biology
• /
• v.5 no.3
• /
• pp.11-20
• /
• 1962

CHA, Jong Whan (Dept. of Biology, Coll. of Education, Seoul National Univ.) Effect of Gibberelline on the growth and internal components of selected vegetable plants. Kor. Jour. Bot. V(3):11-20, 1962. The effect of GA on the growth as well as on the internal components of theleaves of ordinary vegetable plants under the soil culture was investigated. A relatively small difference in GA concentration applied showed a marked influence on the growth and constituents of the plants observed. The increase of growth was related to a highly significant digree with the intensity of GA. chlorophyll and carotene content in the leaves were significantly with increasing concentration of GA, except for some plants. The growth in all examined plants did not correspond to the contents of chlorophyll and carotene. In contrast the ascorbic acid in the leaves treated with GA decreased in proportion to the GA concentrations. Chlorophyll and ascorbic acid value differed greatly during the two experiments and the difference was proved significant. Carotene content varied with chlorophyll although the ratio of chlorophuyll to carotene was not so high as that obtained by Beak and Redman.

• Development and Reproduction
• /
• v.10 no.4
• /
• pp.215-225
• /
• 2006

Precocious puberty is defined as the appearance of secondary sex characteristics before age 8 years in girls (or menarche before age 9 years) and before 9 years in boys. The age of onset of puberty is progressing to younger age. The pubertal activation of gonadotrophin releasing hormone(GnRH) release requires coordinated changes in excitatory or inhibitory amino acids, growth factors, and a group of transcriptional regulators. A number of factors affecting precocious puberty were explored, including the role of genetic factors, nutrition(body fat) and exposure to endocrine disrupting chemicals. In addition to the psychosocial disturbances associated with precocious puberty, the premature pubertal growth spurt and the accelerated bone maturation result in reduced adult height. Precocious puberty may be gonadotrophin-dependent premature activation of the GnRH pulse generator or gonadotrophin-independent. In rapidly progressing central precocious puberty, GnRH agonists appear to increase final height. However more data on the effect and long-term safety of GnRHa are needed.

• Journal of Chest Surgery
• /
• v.40 no.1 s.270
• /
• pp.60-62
• /
• 2007

Pulmonary hypoplasia is an entity of pulmonary agenesis. Pulmonary agenesis is a rare congenital anomaly, usually diagnosed soon after birth. It is commonly associated with other anomalies, mainly of the cardiovascular systems. Although it may hasten the death of a child, sometimes it is compatible with normal growth. We report a right lateral thoracotomy approach for mitral valve repair in a young woman with pulmonary hypoplasia, in whom preoperative computed tomography showed severe right side shifting of the mediastinum and total collapse of the right lung.

• Journal of the Korean Orthopaedic Association
• /
• v.53 no.6
• /
• pp.552-557
• /
• 2018

Vitamin D plays a major role in bone metabolism, and its deficiency has an impact on fracture risk and healing. Low vitamin D levels are a cause of poor bone mineralization and have been associated with a significantly higher risk of physeal injury in children. This paper presents a case of a 13-year-old boy with a vitamin D deficiency, who sustained multiple sequential epiphyseal injuries at various areas. This report suggests that vitamin D deficiency is not only a significant cause of the clinical disease itself, but also an important factor affecting the successful recovery of injuries.