• Proceedings of the Korean Society of Crop Science Conference
• /
• 2017.06a
• /
• pp.147-147
• /
• 2017

Rice is one of the major staple food in Asia, covering around half of the world population. More than 40% of rice cultivation area are subject to abiotic stresses such as drought, submergence and phosphate deficiency. Pyramiding useful genes into elite variety is a promising strategy to develop tolerance varieties to multiple abiotic stresses. However, some genes are not functionally compatible when they are introgressed into the same elite variety. Here, we tested the functional compatibility of Sub1 and Pup1, major QTLs for tolerance to submergence and phosphate (P)-deficiency conditions, respectively. Phenotypic analysis revealed that IR64-Sub1 Pup1(SP1) plants harboring both Sub1 and Pup1 QTLs showed significant tolerance to submerged conditions, similarly in IR64-Sub1 (Sub1) plant, while SP1 plants failed to tolerate to P-deficiency conditions; only IR64-Pup1 (Pup1) showed strong P-deficiency tolerance phenotype. In submerged conditions, the expression levels of Sub1A and PSTOL1, major genes for Sub1 and Pup1 QTLs, respectively, were not significantly different in between Pup1 and SP1 plants. On the other hand, the expression of both Sup1A and PSTOL1 was significantly downregulated in P-deficiency conditions, suggesting that Sub1 and Pup1 repressed gene expression each other in P-deficiency conditions. These results suggest Pup1 does not compromise the Sub1 function in submerged conditions while Sub1 suppresses the function of Pup1 in (P)-deficient condition, possibly by regulating transcript level of Pup1. In conclusion, Sub1 and Pup1 are functionally compatible in terms of submergence tolerance but not in P-deficiency conditions. Further analysis need to be performed to elucidate how Sup1 suppresses the function of Pup1 in P-deficiency conditions.

• The Journal of Korean Medicine Ophthalmology and Otolaryngology and Dermatology
• /
• v.22 no.2
• /
• pp.74-81
• /
• 2009

Background and Objective : There are a lot of theories that explained the aging process, and the oxidative stress is one of the important theory that explained the aging process. The aim of this study was to investigate active oxygen and antioxidant capacity of Qi deficiency and Blood deficiency animal models. Material and Methods : Sprague-Dawley rats were divided into three groups: normal group, Qi deficiency group and Blood deficiency group. The Qi deficiency animal model was induced through restriction of food (12g/kg/day) for 20 days. Blood deficiency animal model was induced by bleeding from tail vein(0.4ml/time) 8 times. The normal animal model was kept without any intervention. The oxidative stress was observed by measuring the active oxygen and antioxidant capacity. Results and Conclusion : 1. Active oxygen was significantly increased in the Qi deficiency group and Blood deficiency group. (P=0.061) 2. Antioxidant capacity was increased in the Qi deficiency group and Blood deficiency group. But there is no significant difference. (P=0.113)

• Korean Journal of Oriental Medicine
• /
• v.14 no.2
• /
• pp.47-66
• /
• 2008

Background: It is insufficient information that are syndrome differentiations and detail symptoms in Korean. Methods: 19 traditional korean medical agencies collected 190 cases with vital sign, body measurement, patient own symptoms report and doctor diagnosis. And then we analyzed general distributions and comparisons of deficiency and non-deficiency. Results: The most past histories, in order, were the arthritis(20%), gastroenteropathy, hypertension, anemia, diabete mellitus. In chief complains, musculoskeletal occupies 60 percent of the total, and digestive system, head in order. In the syndrome differentiation, it appeared deficiency, spleen, Qi deficiency in order. Age(p=0.000), systolic blood pressure(p=0.044) and the waist-hip ratio(p=0.000) was significantly higher in the deficiency group compared with non-deficiency group. Patients with condition which dislikes the wind and with anxiety and with amazing and fear(驚恐) were significantly more in deficiency group(p=0.029, p=0.017, p=0.044). Conclusions: These statistics are continually revised report and it will be reported comparison of several syndrome differentiations and therapeutic effects by treatment methods.

• Journal of applied mathematics & informatics
• /
• v.16 no.1_2
• /
• pp.303-306
• /
• 2004

There are 49 non-metacyclic p-groups of order less than 1000 with trivial Schur multiplier. In this paper we give a list of deficiency zero presentations for these groups.

• Journal of Plant Biology
• /
• v.22 no.1_2
• /
• pp.21-27
• /
• 1979

Sandy loam plots of pH 5.5, which was created by the reclamation of highlands in Yongin county, Kyeonggi province, was selected for the present experimental study. Sugar beet was cultured in these plots by treating them with calcium hydroxide and 3 replications to maintain pH 5.5, 6.4, 6.8, 7.2, and 7.6, respectively. The growth and yield of sugar beet were investigated and the results obtained showed a great deal of boron deficiency. The growth in its early stage was favorable in high pH plots, while no significant difference was observed in sugar content, root weight and sugar production at the time of harvest in each treated plot. The tendency of sugar accumulation appeared to be identical in terms of pattern in each treated plot; i.e. sugar was accumulated until early September but declined momentarily from the middle of September and then the sugar accumulation was resumed from the middle of October. The number of individuals in boron deficiency was larger in high pH plots and the condition of such boron deficiency was also severe. The result of analysis of boron contained in plant body revealed that the boron content of individuals caused boron deficiency by water culture and that occurred in the plots was small alike. The appearance of boron deficiency is characterized by the emergence of black stripes on the surface of the basal part of petiole, severe necrosis of young leaves in the area of growing point and severe wrinkles. Therefore it is felt necessary to pay particular attention to boron deficiency in the culture of sugar beet in our country.

• Child Health Nursing Research
• /
• v.24 no.2
• /
• pp.157-165
• /
• 2018

Purpose: The purpose of this study was to examine differences in the prevalence of vitamin D deficiency between male and female Korean adolescents and to investigate gender-specific factors associated with vitamin D deficiency. Methods: This cross-sectional descriptive study included 975 adolescents aged 12-18 years who participated in the fifth Korean National Health and Nutrition Examination Survey (2010~2011). Multiple logistic regression using complex sample analysis was performed to examine gender-specific factors associated with vitamin D deficiency with adjustments for covariates. Results: Among the participants, 82.9% had vitamin D deficiency. The prevalence of vitamin D deficiency was higher among female adolescents (88.4%) than their male counterparts (78.4%). A rural place of residence (OR, 0.40; 95% CI, 0.19~0.87; p=.021) and daily milk intake (OR, 0.23; 95% CI, 0.07~0.75; p=.015) were significant factors significantly associated with vitamin D deficiency in males, while body mass index (OR, 8.40; 95% CI, 1.05~67.04, p=.045) and having breakfast (OR, 0.22; 95% CI, 0.10~0.49; p<.001) showed significant relationships in females. Conclusion: The results of this study provide preliminary evidence for developing effective strategies to prevent vitamin D deficiency in Korean adolescents. The different factors influencing vitamin D deficiency in males and females should be considered when providing interventions.

• Journal of Plant Biology
• /
• v.23 no.2
• /
• pp.37-44
• /
• 1980

Kidneybean(Phaseolus vulgaris L.) and buckwheat(Fagopyrum esculentum M nch) seedlings grown with Hoagland solution to a height of 7 to 10 cm in the earthen pot containing sand were used for experimental plants. One group of the experimental plants was irrigated with Hoagland solution composed of various Pb-concentratons of 0 to 1000ppm containing 30ppm, and the other group was irrigated with Hoagland solution composed of various P-concentrations of 0 to 1,000ppm containing 30ppm Pb for a month during June and July in 1979. By Pb-surplus over 100ppm, the margins of buckwheat were curled down and turned into yellow-brown chlorosis, but the leaves of kidneybean were become dark-green at an early stage, and then developed chlorosis, finally shedded earlier than the control. Pb-toxicity was similar to the symptoms of P-deficiency. The ratio, 3/1 of chlorophyll a/b at an early stage, was unaffected by Pb-surplus or P-deficiency, but at the later stage it was altered. ATP content with Pb-surplus of 100ppm was decreased by 69% in kidneybean leaves and by 38% in buckwheat leaves, and it with P-deficiency was decreased by 75% in kidneybean leaves and by 43% in buckwheat leaves. In the assay of ATP content of the leaves at intervals of three hours for one day of July in the year, the rhythms of ATP level were unaffected by light or temperature although the amplitude of the level was modified. The rhythms of Pb-surplus and P-deficiency plants were observed at the lower range of ATP content than that of control.

• Asian-Australasian Journal of Animal Sciences
• /
• v.15 no.9
• /
• pp.1278-1287
• /
• 2002

To record the prevalence of macro-minerals deficiency in buffaloes, a survey was conducted in certain parts of Northern India. The prevalence of soil Ca, P, Mg, Na, P and K deficiency was 21.35%, 23.30%, 28.64%, 3.61% and 6.84%, respectively while that of fodder Ca, P, Mg, Na and K deficiency was 13.88%, 16.55%, 19.72%, 3.54% and 4.86%, respectively. The overall prevalence of serum (buffalo) Ca, P, Mg, Na and K deficiency in certain parts of northern India was 25.48%, 24.66%, 24.36%, 4.42% and 3.28%, respectively. The correlation coefficient of Ca, P, Mg, Na and K in soil, fodder and serum was significant and in most of the cases the values were above 0.6. The highest deficiency of macro-minerals i.e. Ca, P, Mg, Na and K was found in plain regions, followed by Tarai (foot hill of Himalayas) region and finally the hilly region. For therapeutic studies, three types of mineral mixture were prepared according to deficiency obtained and fed to three groups of deficient animals. Observations were recorded on 0, 30, 60 and 75 day. In group A animals normal mineral mixture was provided, where as in group C and D 10% and 25% more of Ca, P, Mg were provided, respectively. There was an increase in body weight, milk yield, haemoglobin concentration, and total erythrocyte count. Alanine aminotransferase, aspartate amino transferase in group D animals. There was a decrease in heart rate, respiratory rate and alkaline phosphatase in group D animal after mineral supplement. Thus showing the efficacy when supplements 3 provided to group D animals.

• Biomedical Science Letters
• /
• v.17 no.3
• /
• pp.203-209
• /
• 2011

Magnesium (Mg) plays an essential role in physiological and metabolic reactions. Recently, there has been an increased interest in the role of Mg deficiency, particularly the relationship between serum Mg value and inflammatory response. This study was designed to determine the relationship between serum Mg deficiency with inflammatory response, electrolytes and hematological alteration over long-term periods. Sixteen male Sprague-Dawley rats were divided into two groups: control (n=8), and Mg deficiency group (MgD group, n=8). Chow and normal water (tap water) were regularly provided to the control group and Mg-depleted chow and third distilled water were regularly provided for 60 days to the MgD group. Body weights, Serum Mg, $K^+$, inorganic phosphorus (IP) and total iron binding capacity (TIBC) levels in the MgD group were lower than those of the control group (P<0.05). Granulocyte fraction and MCV, RDW and PDW levels were higher, whereas lymphocyte fraction, erythrocyte, hemoglobin and MCHC levels were lower in the MgD group than in the control group (P<0.05). MCP-1 and TNF-${\alpha}$ levels in the MgD group were greater than those of the control group (P<0.05). In conclusion, the results of the present study suggest that Mg deficiency over a long-term period had not altered total leukocyte concentration in the blood, but had detrimental effects, including disturbances of electrolytes balance, disturbance of iron indices, potential anemia and elevation of pro-inflammatory cytokine. However, further studies should be performed to determine the relationship between serum Mg deficiency and major organ damage or alteration.

• Journal of Nutrition and Health
• /
• v.29 no.7
• /
• pp.772-777
• /
• 1996

The purpose of this study was to investigate the effect of vitamin B2 deficiency on the utilization and recuperation of fuel in exercising rats. Thirthy six rats were fed either a vitamin B2 deficient diet (-B2) or a control diet (+B2) for 3 weeks and then subdivided into 3 groups : non-exercise group(NE), exercise group (ES), exercise and recuperation group (ER). ES group were exercised on treadmill (10$^{\circ}$, 0.5-0.8km/h) for 2 hours and ER group were recuperated three days with the respective diet after exercise. Glucose (GLU), glycogen(GLY), protein(PRO), triglyceride(TG) and free fatty acid(FFA) were compared in plasma(P), liver(L) and skeletal muscle(M) of rats. Compared to + B2 rats, in NE group, the level of P-GLU and L-GLU of -B2 rats was lower, L-PRO and M-GLY was higher and there were no differences in P-PRO, P-FFA, L-TG and M-TG. In ES group, the level of P-GLU was lower, P-FFA was higher and there were no differences in P-PRO, P-TG, L-GLU, L-TG, M-GLY, M-TG and M-PRO. In ER groups, the level of P-GLU and L-TG was lower, P-FFA was higher and there were no differences in P-PRO, P-TG, L-GLY, L-PRO, M-GLY, M-TG and M-PRO. These results suggest that a vitamin B2 deficiency may impair the utilization of stored fuel during exercise suggest that a vitamin B2 deficiency may impair the utilization of stored fuel during exercise and may lead a sluggish recuperation related to fuel stores after exercise.