• Title/Summary/Keyword: physiological factors

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Implantation in Ruminants: Changes in Pre-Implantation, Maternal Recognition of Pregnancy, Control of Attachment and Invasion - Review -

  • Nagaoka, K.;Yamaguchi, H.;Aida, H.;Yoshioka, K.;Takahashi, M.;Christenson, R.K.;Imakawa, K.;Sakai, S.
    • Asian-Australasian Journal of Animal Sciences
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    • v.13 no.6
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    • pp.845-855
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    • 2000
  • As high as 50% of pregnancies are known to fail and the majority of such losses occur during the peri-implantation period. For the establishment of pregnancy in mammalian species, therefore, implantation of the conceptus to the maternal endometrium must be completed successfully. Physiological events associated with implantation differ among mammals. In ruminant ungulates, an elongation of the trophohlast in early conceptus development is required before the attachment of the conceptus to the uterine endometrium. Moreover, implantation sites are restricted to each uterine caruncula where tissue remodeling, feto-maternal cell fusion and placentation take place in a coordinated manner. These unique events occur under strict conditions and are regulated by numerous factors from the uterine endometrium and trophoblast in a spatial manner. Interferon-tau (IFN-${\tau}$), a conceptus-derived anti-Iuteolytic factor, which rescues corpus luteum from its regression in ruminants, is particularly apt to play an important role as a local regulator in coordination with other factors, such as TGF-${\beta}$, Cox-2 and MMPs at the attachment and placentation sites.

Study on the Relationship between Carotid Intima-Media Thickness and The Second Derivative of Photoplethysmogram Waveforms in Ischemic Stroke Patients (뇌경색 환자의 경동맥 내막 두께와 사속도맥파 검사의 관련성 연구)

  • Kang, Kyung Hwa;Kim, Kyoung Min
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.29 no.2
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    • pp.160-167
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    • 2015
  • The purpose of this study was to investigate the correlation of Intima-Media Thickness of common carotid artery(CCA-IMT) and The Second Derivative of Photoplethysmogram Waveforms(SDPTG). 38 subjects with acute ischemic stroke were recruited from the patients admitted to Dong-Eui Medical Center from the June 2013 to January 2014. We assessed 38 patient's SDPTG data and CCA-IMT data by B Mode ultrasonography. then 38 subjects were divided into two groups by the CCA-IMT difference; CCA-IMT 〈 0.8 mm group(n=11), CCA-IMT $$\geq_-$$ 0.8 mm group(n=27). We analyzed their characteristics, risk factor, blood test result, life style by CCA-IMT difference. As a result, Age, Hypertension were significantly higher in the CCA-IMT $$\geq_-$$ 0.8 mm group then in the CCA-IMT < 0.8 mm group. Regular exercise were significantly higher in the CCA-IMT < 0.8 mm group then in the CCA-IMT $$\geq_-$$ 0.8 mm group. The result of Multiple regression analysis on the factors affecting the CCA-IMT was hypertension, total cholesterol, age. and The result of Pearson's Correlation analysis on CCA-IMT and SDPTG is that e/a ratio, SDPTG AI were respectively and significantly correlated with CCA-IMT. According to the analysis, the Relationship between CCA-IMT and SDPTG in Ischemic Stroke Patients were founded. We suggest that further investigation with larger and better controlled trials of the Relationship between CCA-IMT and SDPTG could contribute to better understand the effects of risk factors on atherosclerosis.

Growth and physiological responses of broiler chickens to diets containing raw, full-fat soybean and supplemented with a high-impact microbial protease

  • Erdaw, Mammo M.;Wu, Shubiao;Iji, Paul A.
    • Asian-Australasian Journal of Animal Sciences
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    • v.30 no.9
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    • pp.1303-1313
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    • 2017
  • Objective: This study evaluated the change and function of the pancreas, and small intestine in relation to growth performance of broilers on diets supplemented with raw soybean meal (RSBM) and protease. Samples of test ingredients and diets, after mixing and prior to being used were also assessed on contents of anti-nutritional factors. Methods: A $3{\times}3$ factorial study was used, with three levels of RSBM (commercial soybean meal [SBM] was replaced by RSBM at 0, 10%, or 20%) and protease (0.1, 0.2, or 0.3 g/kg). Each treatment was replicated six times with nine birds per replicate. Birds were housed in cages, in climate-controlled room and fed starter, grower and finisher diets. Results: Levels of trypsin inhibitors in the diets, containing varying levels of RSBM ranged between 1,730.5 and 9,913.2 trypsin inhibitor units/g DM. Neither RSBM nor protease supplementation in diets significantly affected (p>0.05) the body weight of broilers in the entire periods (0 to 35-d). Increasing the level of RSBM in diets increased the weight of the pancreas at d 10 (p<0.000), d 24 (p<0.001), and d 35 (p<0.05). Increasing levels of RSBM in the diets reduced the apparent ileal digestibility of crude protein (CP), and amino acid (AA) at d 24. Increasing level of RSBM in the diets decreased (p<0.01) pancreatic protein content, but this was increased (p<0.05) when protease was added to the diets (0 to 10-d). Increasing the level of protease improved the pancreatic digestive enzymes, including trypsin (p<0.05), chymotrypsin (p<0.01), and general proteolytic enzymes (p<0.05). Conclusion: The commercial SBM could be replaced at up to 20% by RSBM for broilers. Although protease supplementation slightly improved the digestive enzymes, and the ileal digestibilities of CP and AA, the CP and AA were negatively affected by increasing RSBM.

Determinants of Health Promoting Behavior of Middle Aged Women in Korea (한국 중년 여성의 건강증진 행위 예측 모형 구축)

  • 이숙자;박은숙;박영주
    • Journal of Korean Academy of Nursing
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    • v.26 no.2
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    • pp.320-336
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    • 1996
  • Health promoting behaviors of an individual are affected by various variables. Recently, there has been a growing concern over important health problems of the middle aged women. Physiological changes in the middle aged women and their responsibility for family care can result in physical and psychological burden experienced by middle aged women. This study was designed to test Pender's model and thus purpose a model that explains health promoting behaviors among middle-aged women in Korea. The hypothetical model was developed based on the Pender's health promoting model and the findings from past studies on women's health. Data were collected by self-reported questionnaires from 863 women living in Seoul, between 20th, April and 15th, July 1995. Data were analyzed using descriptive statistics and correlation analysis. The Linear Structural Relationship(LISREL) modeling process was used to find the best fit model which assumes causal relationships among variables. The results are as follows : 1. The Overall fit of the hypothetical model to the data was good expect chi-square value(GFI=.96, AGFI=.91, RMR=.04). 2. Paths of the model were modified by considering both its theoretical implication and statistical significance of the parameter estimates. Compared to the hypothetical model, the revised model has become parsimonious and had a better fit to the data expect chi-square value(GFI=.95, AFGI= .92. RMR=.04). 3. Some of modifying factors, especially age, occupation, educational levels and body mass index (BMI) are revealed significant effects on health promoting behaviors. 4. Some of cognitive-perceptual factors, especially internal health locus of control, self-efficacy and perceptive health status are revealed significant effects on health promoting behaviors. 5. All predictive variables of health promoting behaviors, especially age, occupation, educational levels, body mass index(BMI), internal health locus of control, self-efficacy & perceptive health status are explained 20.0% of the total variance in the model.

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A Study of Pain, Self-esteem, perceived Health Status, and Self-efficacy in Patients with Chronic Arthritis (만성관절염 환자의 통증, 자아존중감, 건강상태 지각과 자기효능감에 관한 연구)

  • Sohng Kyeong Yae;Kang Sung Sil;Yoo Yang Sook
    • Journal of Korean Public Health Nursing
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    • v.15 no.1
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    • pp.111-124
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    • 2001
  • This study was conducted to identify the characteristics of pain, self-esteem, perceived health status, and self-efficacy and its influencing factors in patients with chronic arthritis. The data were obtained from 104 patients with chronic arthritis registered in one university hospital in Seoul, from May to August, 2000. For analysing the data, SAS program was used for t-test, ANOVA, Scheffe test, Pearson correlation, and stepwise multiple regression. The results were as follows: 1. The variables which showed significant difference with pain were sex, number of painful joints. 2. The variables which showed significant difference with perceived health status were age, diagnosis. number of painful joints. 3. The variables which showed significant difference with self-efficacy were duration of disease, number of painful joints. quality of sleeping. 4. Moderate negative correlation were observed between pain and perceived health status, self-efficacy, and low positive correlation was observed between self-esteem and perceived health status. Also self-esteem revealed moderate positive correlation with self-efficacy, and moderate positive correlation was observed perceived health status and self-efficacy. 5. The predictors to explain self-efficacy were number of painful joints, self-esteem, duration of disease, duration of exercise and pain. These predictors explained $36.05\%$ of variance of self-efficacy. In conclusion, the nursing intervention to improve self-efficacy for chronic arthritis patients focused not only physiological symptoms such as pain. but also psychosocial factors such as self-esteem.

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Climate-related range shifts of Ardisia japonica in the Korean Peninsula: a role of dispersal capacity

  • Park, Seon Uk;Koo, Kyung Ah;Seo, Changwan;Hong, Seungbum
    • Journal of Ecology and Environment
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    • v.41 no.11
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    • pp.310-317
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    • 2017
  • Background: Many studies about climate-related range shift of plants have focused on understanding the relationship between climatic factors and plant distributions. However, consideration of adaptation factors, such as dispersal and plant physiological processes, is necessary for a more accurate prediction. This study predicted the future distribution of marlberry (Ardisia japonica), a warm-adapted evergreen broadleaved shrub, under climate change in relation to the dispersal ability that is determined by elapsed time for the first seed production. Results: We introduced climate change data under four representative concentration pathway (RCP 2.6, 4.5, 6.0, and 8.5) scenarios from five different global circulation models (GCMs) to simulate the future distributions (2041~2060) of marlberry. Using these 20 different climate data, ensemble forecasts were produced by averaging the future distributions of marlberry in order to minimize the model uncertainties. Then, a dispersal-limited function was applied to the ensemble forecast in order to exam the impact of dispersal capacity on future marlberry distributions. In the dispersal-limited function, elapsed time for the first seed production and possible dispersal distances define the dispersal capacity. The results showed that the current suitable habitats of marlberry expanded toward central coast and southern inland area from the current southern and mid-eastern coast area in Korea. However, given the dispersal-limited function, this experiment showed lower expansions to the central coast area and southern inland area. Conclusions: This study well explains the importance of dispersal capacity in the prediction of future marlberry distribution and can be used as basic information in understanding the climate change effects on the future distributions of Ardisia japonica.

The Alteration of % Carbohydrate-Deficient Transferrin and Gamma-Glutamyl Transferase Levels of Alcohol-Dependent Inpatients according to Age and Sex (알코올의존으로 입원한 환자에서 나이와 성별에 따른 퍼센트 탄수화물-결핍트랜스페린과, 감마-글루타밀전이효소 변화 양상의 차이)

  • Jin, Gyo-Sik;Yi, Jung Seo;Lee, Boung Chul;Kim, Jee Wook;Choi, Ihn-Geun
    • Korean Journal of Biological Psychiatry
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    • v.24 no.4
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    • pp.219-224
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    • 2017
  • Objectives This study sought to investigate the relationship between age, sex and alterations in levels of % carbohydrate-deficient transferrin (%CDT) and gamma-glutamyl transferase (GGT) in patients admitted with alcohol dependence. Methods The study retrospectively enrolled 187 patients who were diagnosed with alcohol dependence according to the Diagnostic and Statistical Manual of Mental Disorders-Fourth edition (DSM-IV) and were admitted into a closed ward in Hallym University Hangang Sacred Heart Hospital from 2009 to 2012 and Hallym University Kangnam Sacred Heart Hospital from 2012 to 2017. Demographic factors (age, sex) and biochemical markers [%CDT, GGT, mean corpuscular volume (MCV), aspartate transferase (AST), alanine transferase (ALT)] were collected by reviewing medical records. Alterations in the levels of %CDT and GGT in different groups for each demographic factor were compared after correcting for confounding variables (age, initial %CDT, GGT, MCV, AST, ALT). Results Decreased %CDT and GGT were observed during the period of abstinence after admission. The normalization period for %CDT increased with age, while the normalization period for GGT was longer in female patients. Conclusions These results suggest that alcohol-dependent patients that vary in age have different alterations in %CDT, while different sexes have different alterations in GGT. Age and sex can be potential indicators of treatment response after abstinence in patients with alcohol dependence. Further studies are needed to evaluate the relationship between these factors with regards to physiological and hematological changes in alcohol dependence.

Clinical Cases of Skin Diseases Treated with Hyungsang Medicine Ⅱ (피부질환의 형상의학적 치험사례 Ⅱ)

  • Kang Kyung Hwa;Cho Sung Tae;Lee Yong Tae
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.18 no.5
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    • pp.1520-1526
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    • 2004
  • The writers present this additional paper to supplement the treatise (Clinical Cases of Skin Diseases treated with Hyungsang Medicine) issued at Hyungsang Medicine Conference in 2001. New other cases have been added in this paper because we didn't deal with sufficient cases in the former treatise and there is also a need for continuous research. The skin is the part that is exposed to the outer environment. Consequently, it is not only under the direct influence of the outside, but also shows internal abnormalities. Therefore, it should be carefully examined, when diagnosing a skin disease, whether the disease is caused by the outside influence, or it reveals internal abnormalities, or it shows both outer and internal abnormalities. For skin disease diagnoses, there are still limits in finding out the cause of a disease only by means of feeling pulses and analysing symptoms. In order to overcome those limitations, and for more accurate and appropriate treatments, Hyungsang diagnosis should be fully understood and well recognized. Accordingly, for skin disease treatment especially, along with all the other disease treatments, we should take the four combined factors (configuration, color, pulse and symptoms) into consideration to bring out the merits and the characteristics of the oriental medicine and be able to prepare for any cases.

Case-Control Study on Electrolytes as a Risk Factor of Stroke (뇌졸중 위험지표로서의 전해질 수치에 대한 환자;대조군 연구)

  • Kim, Min-Ji;Kang, Kyung-Won;Yu, Byeong-Chan;Choi, Sun-Mi;Kang, Ji-Sun;Moon, Seung-Hee;Lee, Jae-Hwi;Kim, Yoon-Sik;Seol, In-Chan
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.22 no.4
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    • pp.968-974
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    • 2008
  • This study was aimed to investigate the electrolytes and its relationship with acute stroke patients in each stroke type by case-control study. 217 patients with first-ever acute stroke within 2 weeks as the case group(Cases), 146 people without four major risk factors(hypertension, diabetes mellitus, hyperlipidema and ischemic heart disease) as the healthy control group(Normals), and 160 people as the general control group(Controls) were recruited at the Stroke Medical Center in Daejeon University Oriental Medicine Hospital from july 2005 to march 2007 for this case-control study. We analyzed the odds ratio of electrolytes in binary logistic analysis and evaluated each stroke type and general characteristics such as age, sex etc. The level of sodium(Na+) and potassium(K+) were significantly lower in LAA, SVO type of ischemic stroke and hemorrhagic stroke. But the level of chloride(Cl-) had no significant relation with stroke occurance. In this study we demonstrated that low sodium(Na+) and potassium(K+) have an influence on stoke occurance than chloride(Cl-). And we think that the electrolytes must be considered in risk factors of ischemic stroke in Korean and more prospective studies are needed.

Effect of Simple Formulas of Muscle Section in Donguibogam on Myogenic Regulatory Factors and IGF-1 Expression in C2C12 Cells

  • Yang, In Jun;Tettey, Clement;Shin, Heung Mook
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.28 no.4
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    • pp.411-416
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    • 2014
  • Simple formulas (單方) of muscle section in Donguibogam (東醫寶鑑) have long been prescribed for strengthening muscle and/or prevention of age-related muscle loss. However, biological activity and mechanisms by which they influence myoblast differentiation have not been studied. Therefore, in this study, we evaluated the effects of 14 simple formulas on myoblast differentiation in C2C12 myoblast cells under non-cytotoxic ($0.5mg/m{\ell}$) conditions. C2C12 cells were treated with water extracts of simple formulas for 72 h, and RT-PCR was performed to determine the gene expression levels of myogenic regulatory factors (MRFs), including myoD, myogenin, MRF4, myf5, and insulin like growth factor-1 (IGF-1). Treatment with Colocasiae Rhizoma (CR), Pini Semen (PS), and Sesami Semen (SS) resulted in a significant increase in expression of myogenin in C2C12 cells. Treatment with Allii Macrostemi Bulbus (AM), Colocasiae Rhizoma (CR), and Pini Semen (PS) also resulted in increased expression of MRF4 in C2C12 cells. In addition, enhanced expression of IGF-1 was observed in treatment with Eucommiae cortex (EC), Dioscoreae Rhizoma (DR), Colocasiae Rhizoma (CR), Pini Semen (PS), and Sesami Semen (SS) in C2C12 cells. These results indicate that simple formulas of muscle section in Donguibogam could potentially enhance myoblast differentiation at least in part via increasing expression of myogenin, and/or MRF4 and/or IGF-1.