• Title/Summary/Keyword: blood flow distribution

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The Effect on the Changes of Lymphocyte Subset in Spleen of Mouse by Prednisolone Administration (Prednisolone의 투여에 의한 마우스 비장의 Lymphocyte Subset의 변화)

  • 이경리;이병한;김진영;임좌진;정병헌
    • Journal of Veterinary Clinics
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    • v.16 no.2
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    • pp.454-462
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    • 1999
  • Corticosteroids have long been used for anti-inflammatory, anti-rheumatoid and other purposes in hospital. These effects may be due to inhibit immune reaction. So the animal given corticosteroids was more susceptible to infection because of immunosuppressive effect of corticosteroids. The purpose of this study was to investigate the effects of prednisolone on the lymphocyte subset in the spleen, immunoglobulin in serum, spleen weight, thymus weight and total WBC in peripheral blood. Mice were randomized into 3 groups. Each group has 24 mice. The small dosage group were given by 4 mg/kg/day of prednisolone for 4 days and the large dosage group were given by 8 mg/kg/day respectively. Prednisolone was suspended in saline and orally administered. Mice in control group were given saline alone. Eight mice in each group were sacrificed every week after administration of predisolone. The weight of thymus and spleen were mesured immediately. Lymphocytes were taken from spleen and these cells were analysed by flow cytometry. Also the concentration of total immunoglobulins in serum were assayed by enzyme-linked immunosorbant assay (ELISA). T cell, T-helper cell and T-cytotoxic cell were all significantly (P<0.05) decreased at 1 week after administration of predisolone and at 2 weeks they recovered similarly to that of control. Population of B cell showed various distribution. The concentration of total immunoglobulins in serum was not changed significantly. The weight ratio of spleen to body decreased significantly (P<0.05) during predisolone administration but increased at 1 week later, Eventually the weight ratio was recovered to that of control at 2 weeks. The weight ratio of thymus to body decreased significantly (P<0.05) by prednisolone and recovered gradually up to normal ratio 2 weeks later.

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A Study on the Infrared Thermographic Imaging in Diagnosis of the Central Type of Herniated Disc (중앙형 추간판탈출증의 진단에서 체열촬영의 의의)

  • Song Bong-Keun;Lee Jong-Duk;Pak Yong-Hyun;Song Un-Yong;Kim Jung-Gyl
    • Journal of Acupuncture Research
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    • v.15 no.2
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    • pp.301-310
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    • 1998
  • Infrared thermographic imaging visualizes noninvasively various abnormal condition by detecting the skin temperature. As the imaging represents the objective condition by the changes in blood flow under the control of autonomic nervous system, it is used to diagnosis and monitor the lumboscral radiculopathy. And asymmetry is important in the diagnosis of disc herniation. The most common type of disc herniation occurs psoterolaterally. This frequently causes nerve root compression leading to a radiculopathy in the distribution of the involved nerve root, most of which also provoke the asymmetric changes in thermography. Central disc herniation, which accounts for 5% to 35% of disc herniation, is typically associated with low back pain. But radiculopathy is usually abscent unless central disc heriniaton is large enough to cause compression of the cauda equina. To evalute the diagnostic value of the thermographic imaging in the diagnosis of central disc herniation, the imaging of 15 normal subjects and 48 patients with central disc herniation documented by CT scan were analyzed. The patients had either bilateral radiculophathy or no radiculopathy. The imaging of patient group with non rediculopathy did not show any significant thermal difference to control. While bilateral radiculopathy group reveled hypothermic pattern compared twith control. Thermal difference between left and right side did not present any significance in non radiculopathy group but hypothermia in bilateral radiculopathy group. Large herniation group demonstrated hyperthemic pattern while the others showed no significant change. Cranial caudal thermal difference did not show any difference between experiment groups. These results shows that infrared thermographic imaging can be used central disc herniation with bilateral radiculopathy, while it seems to little useful on the diagnosis of non radiculopathic disc herniation.

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The Clinical Study on 121 Traffic Accident Child Patients (교통사고 소아환자 121례를 통한 임상적 고찰)

  • Jo, Min-Seo;Han, Jae-Kyung;Kim, Yun-Hee
    • The Journal of Pediatrics of Korean Medicine
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    • v.26 no.2
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    • pp.35-46
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    • 2012
  • Objectives The purpose of this study was to find out the characteristics of children patients who had been treated in the Oriental Medical Hospital due to traffic accidents. Methods The study was carried out with 121 children patients who visited the Oriental Medical Hospital from April 2011 to March 2012 and was analyzed by reviewing the patients' charts. Results In the distribution of sex the ratio between boys and girls were similar, but regarding the age, 0~6 year-old group was more than that of 7~15 year-old group. In the traffic accident patterns, 87.6% of the entire children patients were injured by car crash. The highest type in the collision between cars was rear-ending impact. The most patients (48.8%) visited our hospital for oriental medical treatment in less than 3 days after the traffic accident. The number of the first visitors in the Oriental Medical Hospital were 77 (63.6%) and those who visited other western hospitals before and were 44 (36.4%). The most frequent duration of admission and treatment in OPD was less than 7 days. Sleeping disorders (37.1%) were diagnosed the highest in 0~6 year-old group and C-spine sprain (49.0%) was diagnosed the highest at 0~7 years-old group. Herb medications were prescribed to relieve anxiety for 0~6 year-old group and for 7~15 year-old group, those were prescribed to activate blood eliminating phlegm and to normalize Qi flow. The highest effective treatment period was less than 7 days. Conclusions This data suggested that the oriental medical care could be more effective in treating children victims of traffic accidents by confirming many different symptoms depending on the age.

Analysis of Intravascular Flow Patterns following Cervical Transforaminal Epidural Injection (경부 경추간공 경막외 차단술 시 혈관 내 조영에 대한 분석)

  • Hwang, Su Jin;Han, Kyung Ream;Kim, Sae Young;Kim, Nan Seol;Kim, Chan
    • The Korean Journal of Pain
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    • v.22 no.1
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    • pp.52-57
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    • 2009
  • Background: Transforaminal epidural injection (TEI) may be useful to treat unilateral pain that has a dermatomal distribution. In this approach, the needle tip can be placed closer to the dorsal root ganglion and ventral aspect of the nerve root. However many studies have reported that serious complications following TEI occurred more frequently when it was conducted at the cervical level. One of the presumptive mechanisms of the complication is intravascular injection. Therefore this study was conducted to identify the incidence of complications in response to intravascular injections at cervical segments. Methods: This study included all patients, who visited our pain clinic and had radicular symptoms or herpes zoster associated pain. All procedures were conducted under fluoroscopic guidance with contrast enhancement by one of the authors. After the ideal needle position was confirmed by biplanar fluoroscopy, the blood aspiration through the needle hub was evaluated, and a 3 ml mixture of nonionic contrast (2 ml) with normal saline (1 ml) was injected at a rate of 0.3-0.5 ml/sec continuously under real time fluoroscopic visualization. We then classified the contrast spreading pattern as neural, simultaneous neural and vascular, or vascular. Results: A total 71 cervical TEIs were performed. In 26 cases (36.6%), the contrast only spread to the nerve sheath. However, 45 cases (63.4%) showed an intravascular spreading pattern, 37 (52.1%) of which showed a neural and vascular pattern and 8 (11.3%) of which showed only a vascular pattern. Conclusions: Approximately two thirds of the cases of cervical TEI were found to lead to intravascular spreading, which is much higher than the incidence reported in previous studies.

Coronary Artery Bypass Graft with Coronary Thromboendarterectomy in Coronary Artery Disease (관상동맥질환에 있어서 관상동맥우회술과 내막제거술의 효과)

  • Jeong, Jong-Su;Ji, Haeng-Ok
    • Journal of Chest Surgery
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    • v.22 no.6
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    • pp.1092-1100
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    • 1989
  • Since May 1987 to April 1989, fifteen patients have been subjected to coronary artery bypass graft [CABG] including coronary thromboendarterectomy in 3 patients at Hanyang University Hospital. The correlation between the preoperative coronary angiography, electrocardiography, clinical status, operative finding and postoperative blood flow, complication and degree of clinical improvement were evaluated. 1. Ten patients [67 %] were male and five patients [33 %] were female, Ages ranged from 30 to 68 years. [average 52.2 years] 2. The angina by types of presentation was stable in 3 patients, unstable in 12 patients with resting, postinfarction and progressive angina as the criteria of unstability. 3. The number of involved vessels were single in 6 cases, double in 4 cases, triple in 5 cases including 1 case of left main coronary arterial disease. 4. The distribution of sites of distal anastomosis revealed predilection to left coronary arterial system [83 %], especially left anterior descending arterial system. 5. The author performed 4 cases of single bypass, 4 cases of double bypass, 5 cases of triple bypass and 2 cases of quadruple bypass. Of these 15 patients, 3 patients received coronary thromboendarterectomy, LAD in 2 patients and right coronary artery [RCA] in 1 patient. 6. The distal anastomosis were performed first with using saphenous vein grafts as conduits in all cases except 1 case using Gore-Tex conduit because of deficient in length and narrowed internal mammary artery and sequential bypass methods were employed in last 6 cases. 7. One operative death occurred and therefore, mortality rate was 6.7%. The perioperative myocardial infarction were occurred in 3 cases [20%] and its cause was supposed that they were triple vessel disease and therefore, aortic cross clamping times were relatively long. 8. All survivors were followed for 17.7 months on an average [range 5-28 months] and they have had symptomatic improvement except 1 case having mild degree of angina at 1.5 months after operation.

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Clinical assessment and management of auricular arteriovenous malformation: retrospective study

  • Kim, Do Gon;Cho, Hyun Geun;Ryu, Jeong Yeop;Lee, Joon Seok;Lee, Seok Jong;Lee, Jong Min;Lee, Sang Yub;Huh, Seung;Kim, Ji Yoon;Chung, Ho Yun
    • Archives of Craniofacial Surgery
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    • v.22 no.3
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    • pp.141-147
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    • 2021
  • Background: Arteriovenous malformation (AVM) which is a high-blood-flow lesion with connections between arteries and veins without an intervening capillary bed, is difficult to manage. The ear is the second most common site of extracranial AVM. However, studies regarding the management of this condition remain lacking. The purpose of this study was to share managing experiences in our center and to investigate the treatment effect through a retrospective analysis of cases. Methods: Among 265 patients with AVM treated in our vascular anomalies center between January 2008 and January 2021, 10 patients with auricular AVM were included in the study to investigate the lesion distribution, clinical stage, and treatment methods by performing a retrospective evaluation. Results: Among 10 patients, five patients had AVMs distributed in the upper half of the ear, one patient in the lower half of the ear, and four patients in whole ear, respectively. Seven patients had Schobinger stage II, and three had stage III. One patient received surgical treatment only, four patients received sclerotherapy only, and five patients received both surgical treatment and sclerotherapy. The posttreatment status was checked as controlled in two patients, improved in seven patients, persistent in one patient. There were no worsening patients. Conclusion: Auricular AVM is a disease that is difficult to manage by one specific department, thus requiring a collaborative management effort from multidisciplinary team.

Characteristic Radial Pulse Properties of Elderly Females according to Sasang Constitution-based Health Level (고령자 여성의 체질건강수준에 따른 맥파 특성 연구)

  • Kim, Jae Uk;Bae, Jang Han;Ku, Bon Cho;Jeon, Young Ju;Kim, Keun Ho;Kim, Jong Yeol;Kim, Young Min
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.26 no.6
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    • pp.970-975
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    • 2012
  • In Sasang constitutional medicine, doctors diagnose and treat patients according to their Sasang consitutition (SC) type. In this work, by a clinical test with a radial pulse tonometer, we investigated radial pulse properties which were significant in distinguishing unhealthy subjects from healthy subjects for each SC type. We measured radial pulse properties on left and right Gwan locations with a pulse tonometer for 299 elderly female subjects of age of 50 years old or above. We used a newly developed SCAT system to determine subjects' SC types. Subjects' health levels of either healthy or unhealthy were determined independently by two Korean medical doctors. To investigate the statistical differences, we used either of Student's t-test or Mann-Whitney U test depending on the normality of distribution of test statistic. For TE type, unhealthy subjects were characterized with significant increases in heart rate, systolic to diastolic period, pulse depth, while they showed significant decreases in width of pulse in normal direction, pulse area in diastolic period, and high harmonic components (6th, 7th) of power spectral density. For SE type, unhealthy subjects were characterized with significant increases in pulse pressure and pulse depth, while no significant differences were found for SY type. We investigated the characteristic differences in radial pulse properties due to change in health levels on each SC type for elderly females. Pulse variables which were significantly different between healthy subjects and unhealthy subjects were found to vary between SC types. For TE type subjects, many variables were found significant at the left Gwan location, which is in support of the theory of hyperactive liver functioning for TE type. Irrespective of the constitution, the related changes in the pulse properties due to worsened health level were in support of elevated blood flow amount in compensation with weakened blood circulatory function.

Mammary Performance of First Lactation Bali Cows (Bibos banteng) Fed Grass-Legume Based Diets in Relation to the Role of Glucose

  • Sukarini, I.A.M.;Sastradipradja, Djokowoerjo;Nusada, N.;Mahardika, I.G.;Kiranadi, B.
    • Asian-Australasian Journal of Animal Sciences
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    • v.14 no.5
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    • pp.615-623
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    • 2001
  • A study of mammary function in relation to glucose metabolism of first lactation Bali cows on grass-legume diets was carried out using 12 primiparous cows (initial BW $263.79{\pm}21.66kg$) for 16 weeks starting immediately post calving. The animals were randomly allocated into 4 dietary treatment groups R1, R2, R3 and R4, receiving from the last 2 months of pregnancy onwards, rations based on a mixture of locally available grass and legume feed ad libitum. On a DM basis R1 contained 70% elephant grass (PP, Penicetum purpureum) plus 30% Gliricidia sepia leaves (GS), R2 was 30% PP plus 25% GS supplemented with 55% Hibiscus tilliacius leaves (HT, defaunating effect), R3 and R4 were 22.5% PP+41.25% GS+11.25% HT+25% concentrate, with R4 supplemented with zinc-diacetate. TDN, CP and zinc contents of the diets were 58.2%, 12.05% and 18.3 mg/kg respectively for R1, 65.05%, 16.9% and 25.6 mg/kg respectively for R2, 66.03%, 16.71% and 29.02 mg/kg respectively for R3 and 66.03%, 16.71% and 60.47 mg/kg respectively for R4. Milk production and body weights were monitored, an energy and protein balance trial conducted, overall glucose kinetics parameters assessed, mammary blood flow (MBF) and metabolite arteriovenous differences (${\Delta}AVs$) measured to get uptake data and mammary performance relationships. Parameters of glucose kinetics at peak lactation or during dry condition were not affected by ration quality. Glucose pool size, space of distribution and flux increased by 61.77, 62.26 and 82.08%, respectively, during lactation compared to the dry period. Mean glucose flux of lactating Bali cows was $5.52mg/min.kgBW^{0.807}$ which resembles the range of values of temperate dairy cows. Calculation showed that glucose requirements for maintenance, milk lactose and fat-glycerol synthesis, and the formation of NADPH reached 461.69 g for a yield of 1 kg/d or equal to 320.62 mg/min, which was less than the average glucose flux of lactating Bali cows of 481.35 mg/min. Mammary blood flow (MBF) values ranged from 56 to 83 l/h for the different treatments and the ratio MBF per kg milk produced improved from av. 1540 l/kg for R1 to av. 967 l/kg for R4 treated cows. Mammary glucose uptake ranged from 6.27 to 12.03 g/h or 120 to 140 g/kg milk. Glucose uptake was mass-wise 2 to 4 times the amount secreted as lactose, which indicated values less than the calculated mammary glucose needs and that little lactose was synthesized. The excess glucose taken-up was used for other metabolic processes. Linear relationships between metabolite ${\Delta}AVs$ and arterial blood plasma concentration [A] showed that in Bali cows triglycerides (TG), phenylalanine (Phe) and tyrosine (Tyr) have high coefficients of determination, i.e. 0.77, 0.81 and 0.69, respectively. For glucose, the relationship is quadratic with an $R^2$ value of 0.49. It was concluded that lactose synthesis was inadequate, which led to a speculation that milk yield could be improved by increased lactose synthesis.

Potential Hypersensitivity of Recombinant Mouse IL-2 as a Immunotherapeutic Agent of Cancer in Tumor-bearing BALB/c Mice (항암 면역요법제 인터루킨-2의 면역과민반응 평가연구)

  • Cho, Young-Joo;Eom , Juno H.;Gil , Jung-Hyun;Park , Jae-Hyun;Lee , Jong-Kwon;Oh , Hye-Young;Park , Kui-Lea;Kim , Hyung-Soo
    • YAKHAK HOEJI
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    • v.48 no.6
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    • pp.335-344
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    • 2004
  • Interleukin-2 (IL-2), a glycoprotein mainly secreted by CD4+ T helper Iymphocytes, has been developed to use recombinant cytokine to augment the immune response against cancer since IL-2 not only stimulates T Iymphocytes but also enhances natural killer (NK) cell activity. In order to evaluate the immunological safety of recombinant mouse IL-2 (rmIL-2) in cancer therapy, renal cell carcinoma was established in the flank by s.c. injection of renca cell line. Tumor-bearing BALB/c mice were treated with I.p. injections with $2{\times}10^5$ Lu rmIL-2. Even though the tumor size was diminished, there were not significant recovery of body and relative lymphoid organ weights including thymic atrophy in rmIL-2 immunotherapy. Distribution ratios of T cell subsets in thymus were analysed using flow cytometry. Without regard to dosage of rmIL-2, the ratio of CD3+CD4-CD8- T cells was increased in accordance with survival of solid tumor but that of CD4+CD8+ T cells was decreased dramatically. Emergence of autoantibodies (ANA, anti-dsDNA, and anti-histone) in blood was measured after rmIL-2 treatment. The results showed that the levels of ANA and anti-dsDNA did not significantly changed, but the level of anti-histone was increased significantly owing to rmIL-2 therapy. These results indicate rmIL-2 immunotherapy is to induce the autoimmune potential, and the anti-histone measurement as a biomarker of autoimmunity is useful in cancer immunotherapy.

Application of Near-Infrared Spectroscopy in Neurological Disorders: Especially in Orthostatic Intolerance (신경계 질환에서 근적외선분광분석법의 적용: 기립불내증을 중심으로)

  • Kim, Yoo Hwan;Paik, Seung-ho;Phillips V, Zephaniah;Seok, Hung Youl;Jeon, Nam-Joon;Kim, Beop-Min;Kim, Byung-Jo
    • Journal of the Korean neurological association
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    • v.35 no.1
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    • pp.8-15
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    • 2017
  • Near-infrared spectroscopy (NIRS), a noninvasive optical method, utilizes the characteristic absorption spectra of hemoglobin in the near-infrared range to provide information on cerebral hemodynamic changes in various clinical situations. NIRS monitoring have been used mainly to detect reduced perfusion of the brain during orthostatic stress for three common forms of orthostatic intolerance (OI); orthostatic hypotension, neurally mediated syncope, and postural orthostatic tachycardia syndrome. Autonomic function testing is an important diagnostic test to assess their autonomic nervous systems for patients with symptom of OI. However, these techniques cannot measure dynamic changes in cerebral blood flow. There are many experimentations about study of NIRS to reveal the pathophysiology of patients with OI. Research using NIRS in other neurologic diseases (stroke, epilepsy and migraine) are ongoing. NIRS have been experimentally used in all stages of stroke and may complement the established diagnostic and monitoring tools. NIRS also provide pathophysiological approach during rehabilitation and secondary prevention of stroke. The hemodynamic response to seizure has long been a topic for discussion in association with the neuronal damage resulting from convulsion. One critical issue when unpredictable events are to be detected is how continuous NIRS data are analyzed. Besides, NIRS studies targeting pathophysiological aspects of migraine may contribute to a deeper understanding of mechanisms relating to aura of migraine. NIRS monitoring may play an important role to trend regional hemodynamic distribution of flow in real time and also highlights the pathophysiology and management of not only patients with OI symptoms but also those with various neurologic diseases.