• 제목/요약/키워드: physiological signs

검색결과 171건 처리시간 0.022초

Outbreak of chronic fowl cholera in broiler breeder in Korea

  • Yoon, Mi-Young;Kim, Jin-Hyun;Ha, Jong-Su;Seon, Jeong-Won;Kim, Ki-Seuk
    • 한국가금학회:학술대회논문집
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    • 한국가금학회 2006년도 제23차 정기총회 및 학술발표회
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    • pp.88-89
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    • 2006
  • Fowl cholera is an infectious disease caused by .Pasteurella multocida, affecting domesticated and wild birds. It usually appears as a septicemia of sudden onset with high morbidity and mortality, but chronic conditions that characterized by localized infections often occur. 13wks broiler breeders were submitted to the Kyung-pook national university for diagnosis. Clinical signs included approximately 1% mortality, severe lameness, ruffled feathers and swollen and/or cloudy eyes. At necropsy, the outstanding lesions were seen swollen hock joint, which were suppurative or caseous exudates, inflammation of conjunctiva, severe pneumonia and epicarditis. The causative agent was isolated from the hock joint, liver, sinus and sternum of the chickens, and performed physiological and biochemical test. To identify the serotype of P. multocida, capsular serotyping was conducted by multiplex polymerase chain reaction (PCR). In the antimicrobial susceptibility test, the isolates were resistance to the aminoglycosides. In this study, we confirmed chronic fowl cholera (FC) caused by P. multocida in broiler breeders in Korea.

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Single Oral Dose Toxicity Study of an Alcohol Extract of Bumblebee, Bombus ignitus Larvae in Rats

  • Ahn, Mi-Young;Han, Jea-Woong;Yoon, Hyung-Joo;Park, Hae-Chul;Chung, Wan-Tae
    • Toxicological Research
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    • 제25권2호
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    • pp.107-111
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    • 2009
  • The alcohol extract of the larvae of Bombus ignitus, otherwise known as the Bumblebee, was orally administered to rats at doses of 0, 0.04, 0.2, 1 or 2 g/kg as a single oral dose. There were no observed clinical signs or deaths related to treatment in all the groups tested. Therefore, the approximate lethal dose of the alcohol extract of B. ignitus was considered to be higher than 2 g/kg in rats. Mild decreases in body weight gain in male rats were observed dose-dependently within the B. ignitus treated groups over 2 weeks. Throughout the administration periods, no significant changes in diet consumption, ophthalmologic findings, clinical pathology (hematology, clinical chemistry and coagulation) or gross pathology were detected. Minor changes in male rats were found with in the hematological parameters in groups treated with the 0.04 g/kg, 1 g/kg or 2 g/kg of B. ignitus larvae extract, however, all the changes observed were within the physiological range. From these results, it was concluded that there was no evidence of specific toxicity related to the ingestion of alcohol extract of B. ignitus larvae.

Nitric Oxide Plays an Important Role in β-Aminobutyric Acid-Induced Resistance to Botrytis cinerea in Tomato Plants

  • Li, Rui;Sheng, Jiping;Shen, Lin
    • The Plant Pathology Journal
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    • 제36권2호
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    • pp.121-132
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    • 2020
  • β-Aminobutyric acid (BABA) has consistently been reported to enhance plant immunity. However, the specific mechanisms and downstream components that mediate this resistance are not yet agreed upon. Nitric oxide (NO) is an important signal molecule involved in a diverse range of physiological processes, and whether NO is involved in BABA-induced resistance is interesting. In this study, treatment with BABA significantly increased NO accumulation and reduced the sensitivity to Botrytis cinerea in tomato plants. BABA treatment reduced physical signs of infection and increased both the transcription of key defense marker genes and the activity of defensive enzymes. Interestingly, compared to treatment with BABA alone, treatment with BABA plus cPTIO (NO specific scavenger) not only significantly reduced NO accumulation, but also increased disease incidence and lesion area. These results suggest that NO accumulation plays an important role in BABA-induced resistance against B. cinerea in tomato plants.

Sodium nitroprusside mediates seedling development and attenuation of oxidative stresses in Chinese cabbage

  • Sung, Chang-Hyun;Hong, Jeum-Kyu
    • Plant Biotechnology Reports
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    • 제4권4호
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    • pp.243-251
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    • 2010
  • Nitric oxide (NO) has been shown to be involved in diverse physiological processes in microbes, animals and plants. In this study, the involvement of NO in the development and possible roles in oxidative stress protection of Chinese cabbage (Brassica rapa subsp. pekinensis cv. Samrack-ulgari) seedlings were investigated. Exogenous application of sodium nitroprusside (SNP) retarded root elongation, while increasing lateral root formation of Chinese cabbage. Plants showed no signs of external stress due to SNP application in true leaves. Cotyledons of 3-week-old Chinese cabbage plants were found to be highly sensitive to SNP application. Treated cotyledons displayed rapid tissue collapse and associated cell death. Although SNP application reduced root growth under normal growth conditions, it also enhanced methyl viologen (MV)-mediated oxidative stress tolerance. Analysis of SNP application to Chinese cabbage leaf disks, revealed SNP-induced tolerance against oxidative stresses by MV and $H_2O_2$, and evidence includes prevention of chlorophyll loss, superoxide anion (${O_2}^-$) accumulation and lipid peroxidation. This report supports a role for nitric oxide in modulating early seedling development, programmed cell death and stress tolerance in Chinese cabbage.

중의 변증론치와 동의보감의 변증론치에 대한 연구 (Study of Relationship between China BeunJungLonChi and DongEuiBoGam BeunJungLonCh)

  • 고흥
    • 동의생리병리학회지
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    • 제18권1호
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    • pp.16-21
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    • 2004
  • It is different from the DongEuiBoGam(東醫寶鑑) of Korea traditional medicine that China BeunJungLonChi(中醫辨證論治) was made for the scientific and systematic assortment of China medicine. Symptom(症)is more important than symptom complex(證)in china BeunJungLonChi at DonEuBoGam. And unusual symptoms generally are diseases in DongEuiBoGam. DongEuiBoGam is emphasis on body form, temper, body color, pulse(形氣色脈) and the functional difference of organs by body form and body color. there are many problems in order to unify the theory of Korea traditional medicine by china BeunJungLonChi. I suggest that a new assortment that can combine Sasang constitutional medicine(四象醫學), Constitution-Acupuncture(體質針), and Hyungsang medicine(四象醫學) will be necessary. BeunJungLonChi : diagnosis and treatment based on overall analysis of symptoms and signs, the cause, nature and location of the illness and the patient's physical condition according to the basic theories of traditional Chinese medicine

흰쥐에서 nifedipine으로 유발된 치은 증식증 및 하악선 분비기능에 대한 작약 추출물 저해효과 (Relation of Paeonia lactiflora Pallas to Nifedipine-induced Gingival Hyperplasia and Impaired Submandibular Glands Function in Rats)

  • 김성훈;최종원
    • 동의생리병리학회지
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    • 제24권3호
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    • pp.470-475
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    • 2010
  • Calcium-channel blockers such as nifedipine could be associated with gingival overgrowth. The aim of this study was to examine the role of Paeonia lactiflora Pallas(PLP) on nifedipine-induced gingival hyperplasia along with submandibular secretory function in rats. Animals in divided groups received nifedipine (250 mg/kg) alone and in PLP(100, 200 mg/kg) in orally administration for 3 weeks. Pure submandibular saliva was collected intraorally by micropolyethylene cannula and the mandibular gingiva was examined by means of dissecting microscope for signs of redness, tickness, inflammation and exuda. Twenty-one days nifedipine treatment induced gingival hyperplasia accompanied with reduced salivary flow rate and concentrations total protein, epidermal growth factor(EGF) and calcium in comparison with normals. Co-treatment of animals with nifedifine and PLP protected from gingival hyperplasia and retained flow rate, and concentrations of total protein, EGF and calcium in normal levels.

SD 랫트를 이용하여 사물탕(四物湯)의 아급성 독성에 관한 연구 (Subacute Toxicity Study on Samul-tang in SD Rats)

  • 마진열;유영법;하혜경;황대선;신현규
    • 동의생리병리학회지
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    • 제22권1호
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    • pp.137-141
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    • 2008
  • Samul-tang(Siwu-tang) has been traditionally prescribed as a restorative. The present study was undertaken to determine the possible toxic effects of Samul-tang on SD rats. In this study, we investigated the subacute toxicity of water-extracted Samul-tang(Siwu-tang) on SD rats. Twenty rats were orally adiministered Samul-tang for 28 days at a dose of 0 mg/kg(control group) or 1500 mg/kg(treated group), respectively. All of subjects was survived. No significant difference in abnormal clinical signs, related to hematological values, serum biochemical values, water and feed intake, coagulation time, autopsy analysis, organ weight, tissue microscopically, funduscopy, urine intake and urinalysis, was detected. Compared with the control group, we could not find any subacute toxic alteration in treated group (1500 mg/kg) for 28 days. This result suggests that Samul-tang(Siwu-tang), a herbal medicine prescription, is a safe prescription to body.

척수공동증 의증으로 인한 감각장애 환자 치험 1례 (Case Report of Sensory Disturbance with Suspicious Syringomyelia)

  • 강백규;한덕진;이정욱;김회영;이인;김강산;박상무
    • 동의생리병리학회지
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    • 제22권1호
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    • pp.246-251
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    • 2008
  • Syringomyelia is a rare disorder that causes a cyst to form in spinal cord. This cyst, called a syrinx, can damage to the spinal cord and cause symptoms such as motor weakness, pain, sensory disturbance, etc. We experienced a case of tactile hypesthesia suspecting syringomyelia in 16 year old male patient. Syringomyelia in T2/3 level was diagnosed by magnetic resonance imaging. Hypesthesia was similar to mamokbulin in oriental medicine. And we assumed these symptoms induced by conditions called kiheo in analyzing patient's symptoms and signs. We treated the patient by acupuncture, herbal medicine improving kiheo, and other methods. In the result, the symptoms had withdrawn. This case suggested possibility to treat syringomyelia in oriental medicine, but single case is insufficient for evidence.

임신 중 하악 제3대구치 발거후 발생한 골수염 (Osteomyelitis following extraction of lower third molar during pregnancy)

  • 이상빈;허경회;이원진;김미자;이삼선
    • Imaging Science in Dentistry
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    • 제38권3호
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    • pp.177-182
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    • 2008
  • A 27-year-old female was referred to our hospital postpartum due to rapid aggravation of facial swelling. She was diagnosed with osteomyelitis on clinical, radiological, and histopathological examinations, but the possibility of malignancy was not excluded. Clinical signs and symptoms such as facial swelling and discomfort were improved with four months of antibiotics treatment. This is as case of an osteomyelitis progressed from infected extraction socket in a woman with physiological changes of pregnancy. Decreased immunological response, increased sex hormone and calcium regulatory hormones regulate the response of the bone infection. We report this case for helping the diagnosis of unusual from of osteomyelities in pregnancy and postpartum.

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인체의 아연필요량 측정방법 (Assessment of Zinc Requirement for Human)

  • 윤진숙
    • 한국식품영양과학회지
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    • 제24권2호
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    • pp.346-353
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    • 1995
  • The dietary requirement for zinc to maintain optimally the various metabolic and physiological funcitons is still under study. Human beings adapt to reductions in zinc intake by reducing the rate of growth or zinc excretion. Reductions in dietary zinc beyond the capacity to maintain homeostasis lead to utilization of zinc from an exchangeable pool. Loss of a small, critical amount of zinc from this pool leads to both biochemical and clinical signs of zinc deficiency. Zinc requirements have been assessed by balance studies and factorial method. As tissue zinc status influences endogenous losses and the dietary needs, individuls in good status may require higher amounts of zinc than those in poor status. While plasma zinc is insensitive to reducitons in dietary zinc, it is regarded as a valid, useful indicator of the exchangeable pool of zinc. Plasma metallothionein concentrations may prove useful for identifying poor zinc status. It has been suggested that functional end point measurement is the new direciton for zinc requirement. However, determination of the functional response to a marginal zinc intake is difficult because of the lack of a specific, sensitive indicator of zinc status. Presently, no good method for assessment of human zinc requirements exists.

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