• Title/Summary/Keyword: Organ size

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Effects of High Dietary Calcium and Fat Levels on the Performance, Intestinal pH, Body Composition and Size and Weight of Organs in Growing Chickens

  • Shafey, T.M.
    • Asian-Australasian Journal of Animal Sciences
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    • v.12 no.1
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    • pp.49-55
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    • 1999
  • The effect of fat supplementation of high calcium (Ca) diets on the performance, intestinal pH, body composition and size and weight of organs in growing chickens were investigated in two experiments. Growing chickens tolerated a high dietary level of Ca (22.5 vs 12.1 g/kg) in the presence of 6.3 g/kg of available phosphorus without any significant effect on performance. Intestinal pH was significantly increased by the addition of excess Ca and fat which probably created the right pH for the formation of insoluble Ca soaps. Excess dietary Ca increased carcass linoleic acid concentration at the expense of palmitic and stearic acid contents, whilst the addition of sunflower oil (80 g/kg diet) to the diet increased carcass linoleic acid concentration at the expense of palmitic acid content of the carcass. Intestinal and visceral organ size and weight were not influenced by excess Ca or fat. However, there was a non significant increase in the intestinal dry weight per unit of length caused by excess dietary Ca. It was concluded that excess dietary Ca of 22.5 g/kg did not significantly influence the performance of meat chickens. However, excess Ca increased intestinal pH and altered carcass fatty acid composition. Fat supplementation did not alter intestinal pH with high Ca diets. Excess dietary fat altered carcass fatty acid composition and reduced protein content. Intestinal and visceral organ size and weights were not influenced by excess dietary levels of Ca of fat.

Estimating Organ Doses from Pediatric Cerebral Computed Tomography Using the WAZA-ARI Web-Based Calculator

  • Etani, Reo;Yoshitake, Takayasu;Kai, Michiaki
    • Journal of Radiation Protection and Research
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    • v.46 no.1
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    • pp.1-7
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    • 2021
  • Background: The use of computed tomography (CT) device has increased in the past few decades in Japan. Dose optimization is strongly required in pediatric CT examinations, since there is concern that an unreasonably excessive medical radiation exposure might increase the risk of brain cancer and leukemia. To accelerate the process of dose optimization, continual assessment of the dose levels in actual hospitals and medical facilities is necessary. This study presents organ dose estimation using pediatric cerebral CT scans in the Kyushu region, Japan in 2012 and the web-based calculator, WAZA-ARI (https://waza-ari.nirs.qst.go.jp). Materials and Methods: We collected actual patient information and CT scan parameters from hospitals and medical facilities with more than 200 beds that perform pediatric CT in the Kyushu region, Japan through a questionnaire survey. To estimate the actual organ dose (brain dose, bone marrow dose, thyroid dose, lens dose), we divided the pediatric population into five age groups (0, 1, 5, 10, 15) based on body size, and inputted CT scan parameters into WAZA-ARI. Results and Discussion: Organ doses for each age group were obtained using WAZA-ARI. The brain dose, thyroid dose, and lens dose were the highest in the Age 0 group among the age groups, and the bone marrow and thyroid doses tended to decrease with increasing age groups. All organ doses showed differences among facilities, and this tendency was remarkable in the young group, especially in the Age 0 group. This study confirmed a difference of more than 10-fold in organ doses depending on the facility and CT scan parameters, even when the same CT device was used in the same age group. Conclusion: This study indicated that organ doses varied widely by age group, and also suggested that CT scan parameters are not optimized for children in some hospitals and medical facilities.

Organ Fossils of Neocalamites carrerei from the Amisan Formation of the Nampo Group, Korea (남포층군 아미산층에서 산출된 Neocalamites carrerei의 기관화석)

  • Kim, Jong-Heon;Roh, Heon-Sun
    • Journal of the Korean earth science society
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    • v.29 no.6
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    • pp.466-473
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    • 2008
  • This study deals with the morphological characteristics and structure of organ fossils of Neocalamites carrerei such as rhizomes, aerial leafy stems, and cones collected in situ from the Amisan Formation of Nampo Group. Judging from the size of some extant Equisetum and paleoclimate of Daedong flora, it is considered that the size of Neocalamites carrerei was probably very large. The cone of Neocalamites takahashii (Kon'no) is closely associated with the leaves of Neocalamites carrerei. It indicates that two organ fossils mentioned above probably belong to the same species. Comparing with very abundant occurrence of aerial leafy stems and rhizomes in the Amisan Formation, cones are very rare. This fact implies that Neocalamites reproduce not only by spore reproduction, but also by asexual reproduction. Neocalamites largely differ in the leaf form and size from Equisetum.

A Case of Multi-Organ Macronodular Tuberculosis (다기관성 대결절성 결핵 1예)

  • Lim, Kyoung-Ree;Kang, Myung-Ho;Kim, Tae-Suk;Moon, Ki-Won;Ryu, Dong-Ryeol;Lee, Hui-Young;Han, Seon-Sook
    • Tuberculosis and Respiratory Diseases
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    • v.72 no.1
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    • pp.88-92
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    • 2012
  • A 37 year old female presented with epigastric pain and weight loss over a period of 3 months. Her abdominal CT finding showed a 4.5 cm size hepatic mass and 4.3 cm size pancreatic head mass with multiple macronodules in the liver. At the same time, her chest CT revealed a 5 cm size necrotic mass in the left lower lobe of the lung with multiple bilateral pulmonary nodules. We diagnosed these lesions as tuberculosis through multiple biopsies. She was treated with anti-tuberculous medication. After taking the medications, her symptoms were improved. Twelve months later, imaging studies indicated an improvement in the patient's health. Here we report a case report of multi-organ macronodular tuberculosis in lung, liver and pancreas.

Effects of Early Weaning and Protein Intake on Organ Growth, Metabolism and Physiological Functional in Rats (조기 이유와 단백질의 양적.질적 섭취가 흰쥐의 기관성장 , 질소대사 및 생리기능에 미치는 영향)

  • 이연숙
    • Journal of Nutrition and Health
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    • v.31 no.3
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    • pp.243-252
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    • 1998
  • This study was conducted to investigated the short-term effects of early weaning and protein intake on organ and cell growth, nitrogen metabolism and physiological functions of rats. Five groups of early weaned rats separated from the dam on the 15th day postpartum were each given one five diets consisting of either one of the three levels of casein-low(8%), -normal (16%), and -high(32%), or a normal level (16%) of isolated soy protein(ISP) or egg yolk protein, for 7 days. The normal weaned rats were fed maternal breast milk for three weeks from birth. On the 22nd day postpartum , all the rats were sacrificed . The weight gain of the early weaned rats, especially the ones fed high protein, was observed to be significantly lower than that of the normal weaned rats. By the 15th day, of early weaning and especially in the ISP-fed rats, the total DNA contents of liver and kidney, which may be said to represent an index of cell numbers, significantly decreased, but their fresh and dry weight and protein/DNA ratio, allegedly representing an index of cell size, significantly increased , not affecting the cell number and cell size of brain. There were no differences in total serum protein and albumin concentrations between early and normal weaned rats. In the early weaned rats observed , the serum urea N and $\alpha$-amino N concentrations significantly increased in high protein-fed rats, and decreased in low protein-fed rats. Another observation was that no significant difference was noticed as regards to serum GOT activity, total bilirubin, uric acid, and creatinine concentration, which may represent indices of liver and kidney functions, among rat groups, GPT activity was an exception . These results suggest that premature weaning and the quality and quantity of dietary protein significantly affect organ and cell growth and nitrogen metabolism but does not seriously affect physiological functions in the neonatal development of rats.

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Relationship between the sexual and the vegetative organs in a Polygonatum humile (Liliaceae) population in a temperate forest gap

  • Min, Byeong-Mee
    • Journal of Ecology and Environment
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    • v.41 no.9
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    • pp.256-264
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    • 2017
  • Background: The aim of this study was to clarify the relationship between the sexual reproduction and the resource allocation in a natural Polygonatum humile population grown in a temperate mixed forest gap. For this aim, the plant size, the node which flower was formed, the fruiting rate, and the dry weight of each organ were monitored from June 2014 to August 2015. Results: Firstly, in 3-13-leaf plants, plants with leaves ${\leq}8$ did not have flowers and in plants with over 9 leaves the flowering rate increased with the number of leaves. Among plants with the same number of leaves, the total leaf area and dry weight of flowering plants were larger than those of non-flowering plants. The minimum leaf area and dry weight of flowering plants were $100cm^2$ and 200 mg, respectively. Secondary, the flowers were formed at the 3rd~8th nodes, and the flowering rate was highest at the 5th node. Thirdly, cumulative values of leaf properties from the last leaf (the top leaf on a stem) to the same leaf rank were greater in a plant with a reproductive organ than in a plant without a reproductive organ. Fourthly, fruit set was 6.1% and faithful fruit was 2.6% of total flowers. Biomasses of new rhizomes produced per milligram dry weight of leaf were $0.397{\pm}190mg$ in plants that set fruit and $0.520{\pm}0.263mg$ in plants that did not, and the difference between the 2 plant groups was significant at the 0.1% level. Conclusions: P. humile showed that the 1st flower formed on the 3rd node from the shoot's base. And P. humile showed the minimum plant size needed in fruiting, and fruiting restricted the growth of new rhizomes. However, the fruiting rate was very low. Thus, it was thought that the low fruiting rate caused more energy to invest in the rhizomes, leading to a longer rhizome. A longer rhizome was thought to be more advantageous than a short one to avoid the shading.

Preparation and Evaluation of Flurbiprofen- and Flurbiprofen Axetil-loaded Microemulsion (플루비프로펜 및 플루비프로펜 악세틸이 함유된 마이크로에멀젼의 제조 및 평가)

  • Shin, Kwang-Hyun;Hwang, Sung-Joo;Park, Kyung-Mi;Kim, Chong-Kook
    • YAKHAK HOEJI
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    • v.41 no.5
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    • pp.607-614
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    • 1997
  • Flurbiprofen- and flurbiprofen axetil-loaded microemulsions composed of soybean oil, poloxamer 407, glycerine and water were prepared by generator-type homgenizer and ultrasoni c probe system. The particle size of microemulsions was measured by the dynamic light scattering method. The pharmacokinetics and organ distribution of flurbiprofen were investigated after intravenous injection of flurbiprofen solution, flurbiprofen-loaded microemulsion and flurbiprofen axetil-loaded microemulsions equivalent to 10mg/kg of flurbiprofen to rats. Blood samples were collected from the anterior ciliary artery of rats for 24hr, and flurbiprofen in plasma and organs was analyzed by HPLC. Stable microemulsions were prepared. Even though there is a little change in droplet size just after the preparation, no creaming and no separation were occured during the storage period for 6 months at 4, 21, 37 and 45$^{\circ}C$. Pharmacokinetic parameters and organ distribution of flurbiprofen after intravenous injection of flurbiprofen- and flurbiprofen axetil-loaded microemulsions emulsified with poloxamer 407 were not significantly different from those of commercial lipid microemulsion emulsified with lecithin. Therefore, it is concluded that flurbiprofen- and flurbiprofen axetil-loaded microemulsion prepared with poloxamer 407 could be used as a parenteral formulation.

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Pathological study of a infectious lymphoid organ necrosis virus infection in penaeid shrimp (Penaeus orientalis) (보리새우류(대하)의 전염성 Lymphoid organ 괴사 바이러스 감염에 대한 병리학적 연구)

  • Park, Jae-hak;Lee, Yong-soon
    • Korean Journal of Veterinary Research
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    • v.36 no.4
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    • pp.1013-1016
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    • 1996
  • Since 1993, sudden and massive death has occurred among penaeid shrimp, Penaeus orientalis cultured in Korea. We investigated the pathological characterizations on the spontaneously and experimentally infected penaeid shrimp. The major gross findings of the spontaneous cases were 2-6mm sized-white spots on the inside of the carapace and reddish discolorization. Histopathologically, massive necrosis of lymphoid organ, degeneration and necrosis of epithelia of epidermis and foregut were observed in both spontaneous and experimental cases. Amphophilic to basophilic intranuclear inclusion bodies were readly observed epithelia of epidermis, foregut and gills. Electron microscopy revealed enveloped, non-occuluded ellipsoid to rod shaped virus particles, within the nucleus, in the lymphoid organs and interstitial cells of hepatopancreas of both spontaneously and experimentally infected shrimps. The size of the virion was $375{\times}167nm$, and the nucleocapsid was $290{\times}75nm$. The causative agent causing massive death in penaeid shrimps in Korea resembles baculovirus associated with white spot syndrome (WSBV) occurred in Taiwan in virus morphology and gross and histological changes of the shrimps.

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A study on the generation of seven-emotion in the east-west medicine (칠정(七情)의 생성(生成)에 대한 동서의학적(東西醫學的) 고찰(考察))

  • Song, Ho-chul;Kim, Dong-hee;Kim, Sung-hoon
    • Journal of Haehwa Medicine
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    • v.9 no.1
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    • pp.183-192
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    • 2000
  • 1. The emotion is given before birth, and because of not perfect of human being's consciseness, individual differance exist. 2. Every emotion act first on the heart and following other organ which possess each of the five emotion. Therfore the heart plays impartant role on the emotion and emerge five organ in the oriental medicine theory. 3. The emotion was expressed by external reagent, but the more importante reagent is internal situation such as qi(氣), xie(血), yin(陰), yang(陽), according to these reagent the existing time and strength is different. 4. The emotion is different according to the weak-strong and big-small of zang-fu(臟腑), and the size of zang-fu(臟腑) is determined by emotional specificity in the si-xiang medicinal (四象醫學)theory.

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The Role of Hippo Pathway in Cancer Stem Cell Biology

  • Park, Jae Hyung;Shin, Ji Eun;Park, Hyun Woo
    • Molecules and Cells
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    • v.41 no.2
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    • pp.83-92
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    • 2018
  • The biological significance and deregulation of the Hippo pathway during organ growth and tumorigenesis have received a surge of interest in the past decade. The Hippo pathway core kinases, MST1/2 and LATS1/2, are tumor suppressors that inhibit the oncogenic nuclear function of YAP/TAZ and TEAD. In addition to earlier studies that highlight the role of Hippo pathway in organ size control, cell proliferation, and tumor development, recent evidence demonstrates its critical role in cancer stem cell biology, including EMT, drug resistance, and self-renewal. Here we provide a brief overview of the regulatory mechanisms of the Hippo pathway, its role in cancer stem cell biology, and promising therapeutic interventions.