• Title/Summary/Keyword: respiratory disorders

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Brain invasion of bovine coronavirus: molecular analysis of bovine coronavirus infection in calves with severe pneumonia and neurological signs

  • Semaha Gul Yilmaz;Ozge Aydin;Hasan Emre Tali;Gizem Karadag;Kivilcim Sonmez;Erhan Bayraktar;Aysun Yilmaz;Nuri Turan;Zihni Mutlu;Munir Iqbal;Jurgen A. Richt;Huseyin Yilmaz
    • Journal of Veterinary Science
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    • v.25 no.4
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    • pp.45.1-45.12
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    • 2024
  • Importance: Although the role of bovine coronavirus (BCoV) in calf diarrhea and respiratory disorders is well documented, its contribution to neurological diseases is unclear. Objective: This study conducted virological investigations of calves showing diarrhea and respiratory and neurological signs. Methods: An outbreak of diarrhea, respiratory, and neurological disorders occurred among the 12 calves in July 2022 in Istanbul, Türkiye. Two of these calves exhibited neurological signs and died a few days after the appearance of symptoms. One of these calves was necropsied and analyzed using molecular and histopathological tests. Results: BCoV RNA was detected in the brain, lung, spleen, liver, and intestine of the calf that had neurological signs by real-time reverse transcription polymerase chain reaction. Immunostaining was also observed in the intestine and brain. A 622 bp S1 gene product was noted on gel electrophoresis only in the brain. Phylogenetic analysis indicated that the BCoV detected in this study had a high proximity to the BCoV strain GIb with 99.19% nucleotide sequence homology to the strains detected in Poland, Israel, Türkiye, and France. No distinct genetic lineages were observed when the brain isolate was compared with the respiratory and enteric strains reported to GenBank. In addition, the highest identity (98,72%) was obtained with the HECV 4408 and L07748 strains of human coronaviruses. Conclusions and Relevance: The strain detected in a calf brain belongs to the GIb-European lineage and shares high sequence homology with BCoV strains detected in Europe and Israel. In addition, the similarity between the human coronaviruses (4408 and L07748) raises questions about the zoonotic potential of the strains detected in this study.

Relationship between Smoking and Sleep Disturbance (흡연과 수면장애의 관계)

  • Bae, Sanghyeok;Kim, Hong Soon;Kang, Seung-Gul
    • Sleep Medicine and Psychophysiology
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    • v.25 no.2
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    • pp.45-50
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    • 2018
  • Smoking is one of the most harmful causes of disease. Many previous researches have shown that cigarette smoking leads to cardiovascular, respiratory, oncologic, and cerebrovascular diseases. In addition to such adverse effects, the literature indicates that cigarette smoking can worsen sleep quality and induce sleep disorders. This review focuses on the relationship between smoking/nicotine and sleep and sleep disorders of insomnia, obstructive sleep apnea, and restless legs syndrome. Because smoking is a behavioral pattern that can be changed, it is important to quit smoking to improve overall health and sleep.

Severity Prediction of Sleep Respiratory Disease Based on Statistical Analysis Using Machine Learning (머신러닝을 활용한 통계 분석 기반의 수면 호흡 장애 중증도 예측)

  • Jun-Su Kim;Byung-Jae Choi
    • IEMEK Journal of Embedded Systems and Applications
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    • v.18 no.2
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    • pp.59-65
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    • 2023
  • Currently, polysomnography is essential to diagnose sleep-related breathing disorders. However, there are several disadvantages to polysomnography, such as the requirement for multiple sensors and a long reading time. In this paper, we propose a system for predicting the severity of sleep-related breathing disorders at home utilizing measurable elements in a wearable device. To predict severity, the variables were refined through a three-step variable selection process, and the refined variables were used as inputs into three machine-learning models. As a result of the study, random forest models showed excellent prediction performance throughout. The best performance of the model in terms of F1 scores for the three threshold criteria of 5, 15, and 30 classified as the AHI index was about 87.3%, 90.7%, and 90.8%, respectively, and the maximum performance of the model for the three threshold criteria classified as the RDI index was approx 79.8%, 90.2%, and 90.1%, respectively.

Comparison of Clinical Characteristics Between Respiratory and Non-Respiratory Subtypes of Panic Disorder (공황장애 호흡기 아형과 비호흡기 아형의 임상 특성 비교)

  • Ha, Ju-Won;Lim, Se-Won;Oh, Kang-Seob
    • Korean Journal of Biological Psychiatry
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    • v.16 no.1
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    • pp.46-52
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    • 2009
  • Objectives : The goal of this study was to compare the clinical characteristics of panic disorder respiratory subtype(PD-R) and non-respiratory subtype(PD-NR). Methods : 84 patients with panic disorder were enrolled and divided into 2 groups, 29 PD-R and 55 PD-NR. Diagnosis of panic disorder was evaluated using Diagnostic and Statistical Manual of Mental Disorders $4^{th}$ edition and Mini International Neuropsychiatric Interview. They were also measured with Hamilton Rating Scale for Anxiety(HAM-A), Hamilton Rating Scale for Depression(HAM-D), and Panic Disorder Severity Scale (PDSS). Results : PD-R group showed significantly higher scores in PDSS than those of PD-NR group(p=.027). After controlling for the severity of panic disorder and gender, PD-R group showed higher HAM-D and somatic anxiety subscale of HAM-A than those of PD-NR group. Furthermore, results of logistic regression analysis suggested that the somatic anxiety was a possible risk factor of PD-R(OR=1.404,p=0.009). Conclusion : These results suggest that somatic anxiety and depressive symptom would be important clinical characteristics of PD-R.

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Inflammation, Injury and Transcription Factors in Chronic Lung Diseases: Therapeutic Targets

  • Rahman, Irfan
    • Proceedings of the PSK Conference
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    • 2002.10a
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    • pp.175-176
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    • 2002
  • Airway inflammation is a characteristic of many lung disorders including asthma, chronic obstructive pulmonary disease (COPD) and idiopathic pulmonary fibrosis. All these diseases involve the recruitment of immune and inflammatory cells to the lungs leading to systemic and local chronic inflammation and oxidative stress. (omitted)

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NON-INVASIVE OXIDATIVE AND INFLAMMATORY BIOMARKERS IN BREATH CONDENSATE IN HEALTH AND DISEASE

  • Rahman, Irfan
    • Proceedings of the Korean Society of Toxicology Conference
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    • 2003.05a
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    • pp.23-24
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    • 2003
  • Oxidative stress is the hallmark of various inflammatory lung diseases/disorders such as asthma, adult respiratory distress syndrome, idiopathic pulmonary fibrosis, pneumonia, lung transplantation, Chronic Obstructive Pulmonary Disease (COPD), cystic fibrosis, bronchiectasis, lung cancer and various occupational diseases. (omitted)

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Design of Respiratory Sensor System for polysomnography using Thermocouple (Polysomnography를 위한 열전대 호흡센서 시스템의 설계)

  • 우용규;정도언;박광석
    • Proceedings of the IEEK Conference
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    • 2000.06e
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    • pp.121-123
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    • 2000
  • Changes in breathing pattern and apnea both can be !he result of sleep disorders. The focus of this paper is to develop methodologies to monitor the breathing pattern and to detect apnea. An accurate recording of the respiratory phase can be carried out with different methods. One of these methods is the use of a thermocouple, which reacts to the variation in air temperature, placed in the nose and mouth of the patient. The K-type thermocouple was used because it has high reliability, thermo-stability, and good corrosion resistance. And also, it has a considerable long time constant that gives a low cut-off frequency, well below the respiratory frequency and thereby causing a large phase difference. The result showed that timing of respiration was accurately obtained with the AD595, amplifier for K-type thermocouple.

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Review of Respiratory Disorders in terms of Insurance (주요 호흡기질환의 보험의학적 이해)

  • Lee, Sinhyung
    • The Journal of the Korean life insurance medical association
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    • v.32 no.2
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    • pp.39-49
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    • 2013
  • The textbook of insurance medicine is very bulky volume and it's revision time may be long. Nowadays medical knowledge and evidences are developing rapidly. It is necessary to revise current insurance risk of certain disease. Review of respiratory diseases in terms of insurance medicine may be valuable information for insurance doctors and life underwriters. Newly estimated mortality ratio and excess death rate of several respiratory diseases in this review are organizing pneumonia, 266%/44‰; multi-drug resistant tuberculosis, 1200%/110‰; idiopathic interstitial pneumonia, 869%/85‰; VATS lobectomy of stage I lung cancer, 550%/33‰; lymphangioleiomyomatosis 9826%/66‰; lung transplantation 2026%/92‰, respectively.

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Leri-Weill dyschondrosteosis in a newborn presenting with respiratory failure due to severe micrognathia

  • Gang, Mi Hyeon;Lee, Jianne;Lee, Yong Wook;Shin, Ji Hye;Lim, Han Hyuk;Kim, Yoo-Mi;Chang, Mea-young
    • Journal of Genetic Medicine
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    • v.17 no.2
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    • pp.108-111
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    • 2020
  • Short stature homeobox-containing gene (SHOX) is a well-known causative gene for the short stature in Turner syndrome. The clinical manifestation of SHOX gene related disorders varies from SHOX haploinsufficiency, presenting with idiopathic short stature, disproportionate short stature, or Leri-Weill dyschondrosteosis (LWD) to recessive form of extreme dwarfism and limb deformity in Langer mesomelic dysplasia. LWD is usually diagnosed upon suspicion based on short stature and skeletal abnormalities, and it is rarely accompanied with respiratory failure in the neonatal period. Here, we report the case of a newborn infant with LWD presenting with severe micrognathia that caused respiratory distress, which was diagnosed using microarray testing. Even when the manifestation of Madelung deformity is not yet apparent, LWD should be considered as one of underlying diseases related to congenital micrognathia.

Loeffler's Syndrome Induced by Ingestion of Urushiol Chicken

  • Jeong, Shin-Ok;Oh, Ji-Hyun;Kwak, Yun-Mi;Lee, Junehyuk;Jang, An-Soo;Kim, Do-Jin;Park, Choon-Sik
    • Tuberculosis and Respiratory Diseases
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    • v.78 no.3
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    • pp.258-261
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    • 2015
  • Eosinophilic lung diseases are heterogeneous disorders characterized by varying degrees of pulmonary parenchyma or blood eosinophilia. Causes of eosinophilic lung diseases range from drug ingestion to parasitic or fungal infection as well as idiopathic. The exact pathogenesis of eosinophilic lung disease remains unknown. Urushiol chicken can frequently cause allergic reactions. Contact dermatitis (both local and systemic) represents the most-common side effect of urushiol chicken ingestion. However, there has been no previous report of lung involvement following urushiol chicken ingestion until now. A 66-year-old male was admitted to our hospital with exertional dyspnea. Serial chest X-ray revealed multiple migrating infiltrations in both lung fields, with eosinophilic infiltration revealed by lung biopsy. The patient had ingested urushiol chicken on two occasions within the 2 weeks immediately prior to disease onset. His symptoms and migrating lung lesions were resolved following administration of oral corticosteroids.