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  1. Article ; Online: Antegrade recanalization of parent artery in proximal occlusion of distal posterior inferior cerebellar artery ruptured aneurysm: A case report.

    Jang, Hyung-Gyu / Park, Jung-Soo

    Medicine

    2022  Volume 100, Issue 50, Page(s) e28260

    Abstract: Rationale: Distal posterior inferior cerebellar artery (PICA) aneurysms are extremely rare. Herein, we describe a case of PICA pseudoaneurysm with proximal occlusion achieved using detachable coils, but antegrade recanalization, which showed a normal ... ...

    Abstract Rationale: Distal posterior inferior cerebellar artery (PICA) aneurysms are extremely rare. Herein, we describe a case of PICA pseudoaneurysm with proximal occlusion achieved using detachable coils, but antegrade recanalization, which showed a normal PICA configuration on follow-up angiography. Possible mechanisms of the recanalization and lesions are also discussed.
    Patient concerns: The patient was an 80-year-old woman with a subarachnoid hemorrhage (SAH) resulting from a distal PICA-ruptured aneurysm, initially misdiagnosed as a non-aneurysmal traumatic SAH.
    Diagnosis: On hospitalization day 10, the patient developed rebleeding, and brain computed tomography angiography confirmed a distal PICA pseudoaneurysm.
    Intervention: Endovascular coil embolization was performed. Inevitably, the proximal PICA was occluded using detachable coils, and complete occlusion of the affected PICA was confirmed on the final angiogram.
    Outcome: Fortunately, the patient recovered fully without any neurological sequelae. One year after the procedure, a follow-up angiography was performed, which revealed recanalization of the previously occluded PICA, with normal configuration and no visible aneurysmal dilatation.
    Conclusion: Even if the SAH is scanty and predominantly in the perimesencephalic cistern, performing a catheter-based angiography is essential. In the case of proximal occlusion of the parent artery without internal trapping in endovascular treatment of PICA pseudoaneurysm, follow-up examination with a short-term angiography might be crucial.
    MeSH term(s) Aged, 80 and over ; Aneurysm, False ; Aneurysm, Ruptured/diagnostic imaging ; Aneurysm, Ruptured/surgery ; Angiography ; Cerebellum/diagnostic imaging ; Embolization, Therapeutic ; Female ; Humans ; Intracranial Aneurysm/diagnostic imaging ; Intracranial Aneurysm/surgery ; Subarachnoid Hemorrhage/diagnostic imaging ; Subarachnoid Hemorrhage/etiology ; Subarachnoid Hemorrhage/therapy ; Treatment Outcome ; Vertebral Artery
    Language English
    Publishing date 2022-01-26
    Publishing country United States
    Document type Case Reports ; Journal Article
    ZDB-ID 80184-7
    ISSN 1536-5964 ; 0025-7974
    ISSN (online) 1536-5964
    ISSN 0025-7974
    DOI 10.1097/MD.0000000000028260
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article: First report of walnut anthracnose caused by

    Jang, Hyung Seok / Hassan, Oliul / Chang, Taehyun

    Plant disease

    2023  

    Abstract: Walnut ( ...

    Abstract Walnut (
    Language English
    Publishing date 2023-07-27
    Publishing country United States
    Document type Journal Article
    ZDB-ID 754182-x
    ISSN 0191-2917
    ISSN 0191-2917
    DOI 10.1094/PDIS-05-23-0833-PDN
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: First Report of Walnut Anthracnose Caused by Colletotrichum orientalis in South Korea

    Jang, Hyung Seok / Hassan, Oliul / Chang, Taehyun

    Plant Disease. 2023 Nov. 01, v. 107, no. 11 p.3633-

    2023  

    Abstract: Walnut (Juglans regia L.) is known as “hodu” in South Korea. It is cultivated as a cash crop and an ornamental plant across South Korea. Walnut anthracnose is one of the main limiting factors for walnut production. In June 2022, severe anthracnose was ... ...

    Abstract Walnut (Juglans regia L.) is known as “hodu” in South Korea. It is cultivated as a cash crop and an ornamental plant across South Korea. Walnut anthracnose is one of the main limiting factors for walnut production. In June 2022, severe anthracnose was observed in several walnut fields in Gimcheon, South Korea. The disease incidence was ∼35%, and symptoms on affected fruits consist of necrotic and circular lesions with or without conidial mass. Six pure isolates with similar morphological characteristics were obtained from the tissue of six affected fruits. Diseased tissues were cut into 3- to 4-mm pieces, surface sterilized by 1% sodium hypochlorite for 2 min, washed three times in sterile distilled water, and then dried by blotting. Four pieces per plate were placed onto potato dextrose agar (PDA; Difco Becton Dickinson) and incubated at 25°C in the dark for 2 to 3 days. To obtain pure isolates, hyphal tips were transferred onto fresh PDA. The colonies of all isolates on the PDA were light gray to pinkish on the upper side and pink to vinaceous on the reverse side after 7 days of incubation at 25°C in the dark. The conidia were hyaline, fusiform, aseptate, and 11.3 to 20.1 × 3.6 to 6.9 μm (n = 100). Appressoria were single, cylindrical, smooth walled, dark brown, and 8.1 to 14.3 × 5.4 to 10.5 μm (n = 30). The morphological characteristics of the isolates were comparable with those of Colletotrichum orientalis (Chen et al. 2022). Three isolates (WN23, WN28, and WN30P) were selected based on morphological characteristics for molecular identification. The beta-tubulin (TUB2), actin (ACT), chitin synthase 1 (CHS-1), and histone 3 (HIS3) genes of the selected isolates were amplified and sequenced using the primers Bt2a/Bt2b, ACT512F/ACT783R, CHS-79F/CHS-345R, and CYLH3F + CYLH3R, respectively (Damm et al. 2012). The resulting consensus sequences of each gene were deposited in GenBank with the accession numbers (LC742910 to LC742912 for TUB2; LC742916 to LC742918 for CHS-1; LC742919 to LC742921 for ACT; and LC742922 to LC742924 for HIS3). The constructed maximum likelihood tree based on TUB2, ACT, CHS-1, and HIS3 sequence data revealed that the three isolates formed a clade with the C. orientalis reference strain CBS 128532 (ex-type). The pathogenicity of two representative isolates (WN28 and WN30P) was confirmed on healthy, surface sterilized, and detached walnut fruits. Both wounded and nonwounded fruits (10 fruits per isolate) were inoculated with the conidial suspension (10⁶ spores/ml). The wounded and unwounded control fruits were inoculated with sterile distilled water. All the fruits (inoculated and control) were incubated in containers at 25°C with a 12-h/12-h light/dark cycle. This experiment was repeated twice. Necrotic lesions were observed in all inoculated wounded fruits, whereas unwounded and control fruits remained asymptomatic. The pathogen was reisolated from inoculated fruits and identified as C. orientalis by morphological characteristics and internal transcribed spacer and TUB2 sequences. Damm et al. (2012) identified C. fioriniae as a species belonging to two well-separated clades. However, Chen et al. (2022) split the C. fioriniae species into two species, with the new species called C. orientalis, as a causal agent of apple bitter rot. In previous studies, C. fioriniae has been reported as a causal agent of walnut anthracnose (Luongo et al. 2021; Varjas et al. 2019; Zhu et al. 2015). To our knowledge, this is the first report of C. orientalis as the causal agent of walnut anthracnose in South Korea. Since this disease reduces the commercial value and quality of walnut fruits, effective management practices should be developed to deal with C. orientalis.
    Keywords Colletotrichum ; Juglans regia ; actin ; anthracnose ; apples ; appressoria ; cash crops ; chitin synthase ; conidia ; culture media ; disease incidence ; genes ; histones ; hyphae ; internal transcribed spacers ; new species ; ornamental plants ; pathogenicity ; pathogens ; phylogeny ; sodium hypochlorite ; tubulin ; walnuts ; South Korea ; Colletotrichum orientalis ; maximum likelihood analysis
    Language English
    Dates of publication 2023-1101
    Publishing place The American Phytopathological Society
    Document type Article ; Online
    ZDB-ID 754182-x
    ISSN 0191-2917
    ISSN 0191-2917
    DOI 10.1094/PDIS-05-23-0833-PDN
    Database NAL-Catalogue (AGRICOLA)

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  4. Article ; Online: Risk Factors of Microalbuminuria among Patients with Type 2 Diabetes Mellitus in Korea: A Cross-Sectional Study Based on 2019-2020 Korea National Health and Nutrition Examination Survey Data.

    Bae, Eun Sook / Hur, Jung Yi / Jang, Hyung Soon / Kim, Jeong Suk / Kang, Hye Seung

    International journal of environmental research and public health

    2023  Volume 20, Issue 5

    Abstract: Diabetes mellitus is a chronic disease with high economic and social burdens. This study aimed to determine the risk factors of microalbuminuria among patients with type 2 diabetes mellitus. Microalbuminuria is predictive of early-stage renal ... ...

    Abstract Diabetes mellitus is a chronic disease with high economic and social burdens. This study aimed to determine the risk factors of microalbuminuria among patients with type 2 diabetes mellitus. Microalbuminuria is predictive of early-stage renal complications and subsequent progression to renal dysfunction. We collected data on type 2 diabetes patients who participated in the 2019-2020 Korea National Health and Nutrition Examination Survey. The risk factors for microalbuminuria among patients with type 2 diabetes were analyzed using logistic regression. As a result, the odds ratios were 1.036 (95% confidence interval (CI) = 1.019-1.053,
    MeSH term(s) Humans ; Diabetes Mellitus, Type 2/complications ; Cross-Sectional Studies ; Nutrition Surveys ; Risk Factors ; Hemoglobins ; Republic of Korea
    Chemical Substances Hemoglobins
    Language English
    Publishing date 2023-02-25
    Publishing country Switzerland
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2175195-X
    ISSN 1660-4601 ; 1661-7827
    ISSN (online) 1660-4601
    ISSN 1661-7827
    DOI 10.3390/ijerph20054169
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article: The potential of non-movement behavior observation method for detection of sick broiler chickens.

    Kim, Hyunsoo / Lee, Woo-Do / Jang, Hyung-Kwan / Kang, Min / Kang, Hwan-Ku

    Journal of animal science and technology

    2023  Volume 65, Issue 2, Page(s) 441–458

    Abstract: The poultry industry, which produces excellent sources of protein, suffers enormous economic damage from diseases. To solve this problem, research is being conducted on the early detection of infection according to the behavioral characteristics of ... ...

    Abstract The poultry industry, which produces excellent sources of protein, suffers enormous economic damage from diseases. To solve this problem, research is being conducted on the early detection of infection according to the behavioral characteristics of poultry. The purpose of this study was to evaluate the potential of a non-movement behavior observation method to detect sick chickens. Forty 1-day-old Ross 308 males were used in the experiments, and an isolator equipped with an Internet Protocol (IP) camera was fabricated for observation. The chickens were inoculated with
    Language English
    Publishing date 2023-03-31
    Publishing country Korea (South)
    Document type Journal Article
    ZDB-ID 2775231-8
    ISSN 2055-0391
    ISSN 2055-0391
    DOI 10.5187/jast.2022.e105
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article: Development of a Highly Efficient CRISPR/Cas9-Mediated Herpesvirus of Turkey-Based Vaccine against Novel Variant Infectious Bursal Disease Virus.

    Zhang, Jun-Feng / Park, Jong-Yeol / Kim, Sang-Won / Choi, Yu-Ri / Cha, Se-Yeoun / Jang, Hyung-Kwan / Wei, Bai / Kang, Min

    Vaccines

    2024  Volume 12, Issue 3

    Abstract: Infectious bursal disease (IBD), caused by IBD virus (IBDV), is an extremely contagious immunosuppressive disease that causes major losses for the poultry industry worldwide. Recently, the novel variant IBDV (G2d) has been highly prevalent in Korea, but ... ...

    Abstract Infectious bursal disease (IBD), caused by IBD virus (IBDV), is an extremely contagious immunosuppressive disease that causes major losses for the poultry industry worldwide. Recently, the novel variant IBDV (G2d) has been highly prevalent in Korea, but the current vaccines against this very virulent IBDV have limited efficacy against this novel variant. To develop a vaccine against this variant IBDV, a recombinant virus designated rHVT-VP2 was constructed by inserting the IBDV (G2d) VP2 gene into herpesvirus of turkeys (HVT) using CRISPR/Cas9 gene-editing technology. The PCR and sequencing results obtained showed that the recombinant virus rHVT-VP2 was successfully constructed. Vaccination with rHVT-VP2 generated IBDV-specific antibodies in specific pathogen-free chickens starting from 2 weeks post-immunization. Seven days after the challenge, the autopsy results showed that the bursa atrophy rates of the rHVT-VP2, HVT, vaccine A, and positive control groups were 0%, 100%, 60%, and 100%, respectively, and the BBIX values were 1.07 ± 0.22, 0.27 ± 0.05, 0.64 ± 0.33, and 0.32 ± 0.06, respectively. These results indicate that rHVT-VP2 can provide 100% protection against a challenge with the IBDV (G2d), whereas vaccine A only provides partial protection. In conclusion, vaccination with the recombinant virus rHVT-VP2 can provide chickens with effective protection against variant IBDV (G2d).
    Language English
    Publishing date 2024-02-23
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2703319-3
    ISSN 2076-393X
    ISSN 2076-393X
    DOI 10.3390/vaccines12030226
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article: Applying Deep Learning in Medical Images: The Case of Bone Age Estimation.

    Lee, Jang Hyung / Kim, Kwang Gi

    Healthcare informatics research

    2018  Volume 24, Issue 1, Page(s) 86–92

    Abstract: Objectives: A diagnostic need often arises to estimate bone age from X-ray images of the hand of a subject during the growth period. Together with measured physical height, such information may be used as indicators for the height growth prognosis of ... ...

    Abstract Objectives: A diagnostic need often arises to estimate bone age from X-ray images of the hand of a subject during the growth period. Together with measured physical height, such information may be used as indicators for the height growth prognosis of the subject. We present a way to apply the deep learning technique to medical image analysis using hand bone age estimation as an example.
    Methods: Age estimation was formulated as a regression problem with hand X-ray images as input and estimated age as output. A set of hand X-ray images was used to form a training set with which a regression model was trained. An image preprocessing procedure is described which reduces image variations across data instances that are unrelated to age-wise variation. The use of Caffe, a deep learning tool is demonstrated. A rather simple deep learning network was adopted and trained for tutorial purpose.
    Results: A test set distinct from the training set was formed to assess the validity of the approach. The measured mean absolute difference value was 18.9 months, and the concordance correlation coefficient was 0.78.
    Conclusions: It is shown that the proposed deep learning-based neural network can be used to estimate a subject's age from hand X-ray images, which eliminates the need for tedious atlas look-ups in clinical environments and should improve the time and cost efficiency of the estimation process.
    Language English
    Publishing date 2018-01-31
    Publishing country Korea (South)
    Document type Case Reports
    ZDB-ID 2619923-3
    ISSN 2093-369X ; 2093-3681
    ISSN (online) 2093-369X
    ISSN 2093-3681
    DOI 10.4258/hir.2018.24.1.86
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: Bone age estimation using deep learning and hand X-ray images.

    Lee, Jang Hyung / Kim, Young Jae / Kim, Kwang Gi

    Biomedical engineering letters

    2020  Volume 10, Issue 3, Page(s) 323–331

    Abstract: Bones during growth period undergo substantial changes in shape and size. X-ray imaging has been routinely used for bone growth diagnosis purpose. Hand has been the part of choice for X-ray imaging due to its high bone parts count and relatively low ... ...

    Abstract Bones during growth period undergo substantial changes in shape and size. X-ray imaging has been routinely used for bone growth diagnosis purpose. Hand has been the part of choice for X-ray imaging due to its high bone parts count and relatively low radiation requirement. Traditionally, bone age estimation has been performed by referencing atlases of images of hand bone regions where aging-related metamorphoses are most conspicuous. Tanner and Whitehouse' and Greulich and Pyle's are some well known ones. The process entails manual comparison of subject's hand region images against a set of corresponding images in the atlases. It is desired to estimate bone age from hand images in an automated manner, which would facilitate more efficient estimation in terms of time and labor cost and enables quantitative and objective assessments. Deep learning method has proved to be a viable approach in a number of application domains. It is also gaining wider grounds in medical image analysis. A cascaded structure of layers can be trained to mimic the image-based cognitive and inference processes of human and other higher organisms. We employed a set of well known deep learning network architectures. In the current study, 3000 images were manually curated to mark feature points on hands. They were used as reference points in removing unnecessary image regions and to retain regions of interest (ROI) relevant to age estimation. Different ROI's were defined and used-that of rather small area mostly made up of carpal and metacarpal bones and that includes most of phalanges in addition. Irrelevant intensity variation across cropped images was minimized by applying histogram equalization. In consideration of the established gender difference in growth rates, separate gender models were built. Certain age range image data are far scarcer and exhibit rather large excursion in morphology from other age ranges-e.g. infancy and very early childhood. Many studies excluded them and addressed only elder subjects in later developmental stages. Considering infant age group's diagnosis demand is just as valid as elder groups', we included entire age ranges for our study. A number of different deep learning architectures were trained with varying region of interest definitions. Smallest mean absolute difference error was 8.890 months for a test set of 400 images. This study was preliminary, and in the future, we plan to investigate alternative approaches not taken in the present study.
    Language English
    Publishing date 2020-03-11
    Publishing country Germany
    Document type Journal Article
    ZDB-ID 2602422-6
    ISSN 2093-985X ; 2093-9868
    ISSN (online) 2093-985X
    ISSN 2093-9868
    DOI 10.1007/s13534-020-00151-y
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article ; Online: Evolutionary analysis of Babesia vulpes and Babesia microti-like parasites.

    Lee, Sanghyun / Hong, Yeonchul / Chung, Dong-Il / Jang, Hyung-Kwan / Goo, Youn-Kyoung / Xuan, Xuenan

    Parasites & vectors

    2022  Volume 15, Issue 1, Page(s) 404

    Abstract: Background: The Babesia microti-like parasite is an emerging tick-borne piroplasm that has been detected in a range of hosts worldwide. Babesia vulpes, which is found in dogs and foxes, has been reclassified from B. microti-like parasites. The ... ...

    Abstract Background: The Babesia microti-like parasite is an emerging tick-borne piroplasm that has been detected in a range of hosts worldwide. Babesia vulpes, which is found in dogs and foxes, has been reclassified from B. microti-like parasites. The relationships among these B. microti-like parasites and B. vulpes with respect to host range and geographical origin have not been elucidated.
    Methods: Blood samples were collected from 27 raccoon dogs in South Korea and used to screen for B. microti-like parasites based on a PCR assay targeting the 18S rRNA gene of Babesia. For comparative purposes, in addition to 18S rRNA sequences from nine raccoon dogs, we also analyzed 18S rRNA sequences from B. microti-like parasites infecting hosts in different geographical regions worldwide obtained from the GenBank database, giving 123 sequences in total. The genetic variation and evolutionary relationships among these sequences were examined based on analyses using DnaSP, MEGA, Arlequine, and BEAST software.
    Results: Babesia microti-like parasites were identified in nine raccoon dogs and found to be related to B. vulpes obtained from Spanish dogs. Among the 123 sequences from 14 countries and various hosts, we identified 43 haplotypes with high genetic variance. Based on the genetic variance and phylogenetic analyses, we established that the B. microti-like parasites isolated in different geographical regions and from hosts belonging to five orders showed higher among-population variation than within-population variation. Babesia vulpes parasites infecting carnivore hosts, including raccoon dogs, foxes, skunks and dogs, appear to be genetically distinct from B. microti-like parasites infecting hosts belonging to the other orders.
    Conclusions: Our study demonstrated the genetic variation and evolutionary relationships among 18S rRNA sequences obtained from blood samples collected from various hosts and different geographical regions. Babesia vulpes was identified from raccoon dogs in South Korea. In addition, higher genetic variations were observed among populations of different hosts and geographical origins and, in particular, low connectivity was observed among host populations in the order Carnivora and those in other orders. These results suggest the B. vulpes, a piroplasmid species pathogenic in domestic dogs and wild canines, is genetically and evolutionarily different from B. microti-like parasites.
    MeSH term(s) Animals ; Babesia ; Babesia microti/genetics ; Parasites/genetics ; Babesiosis/parasitology ; RNA, Ribosomal, 18S/genetics ; Foxes/parasitology ; Phylogeny ; Raccoon Dogs
    Chemical Substances RNA, Ribosomal, 18S
    Language English
    Publishing date 2022-11-03
    Publishing country England
    Document type Journal Article
    ZDB-ID 2409480-8
    ISSN 1756-3305 ; 1756-3305
    ISSN (online) 1756-3305
    ISSN 1756-3305
    DOI 10.1186/s13071-022-05528-9
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article ; Online: Effect Sizes of Cognitive and Locomotive Behavior Tests in the 5XFAD-J Mouse Model of Alzheimer's Disease.

    Choi, Moonseok / Jang, Hyung-Sup / Son, Taekwon / Kim, Dongsoo / Youn, Young-Jin / Hwang, Gyu-Bin / Choi, Young Pyo / Jeong, Yun Ha

    International journal of molecular sciences

    2023  Volume 24, Issue 20

    Abstract: Alzheimer's disease (AD) is characterized by the accumulation of amyloid β (Aβ) plaques in the brain, leading to cognitive impairment and other clinical symptoms. The 5XFAD mouse model is commonly used in AD research because it expresses five human ... ...

    Abstract Alzheimer's disease (AD) is characterized by the accumulation of amyloid β (Aβ) plaques in the brain, leading to cognitive impairment and other clinical symptoms. The 5XFAD mouse model is commonly used in AD research because it expresses five human transgenes that result in the accumulation of Aβ plaques and cognitive decline at a relatively early age. Behavioral experiments are frequently conducted using this model; however, the effect size has not yet been reported. In this study, we examined basic cognition and locomotion in 5XFAD mice with a C57BL6/J background (5XFAD-J) at 6 months of age, a period in which impairments of cognitive function and locomotion are commonly observed. We analyzed the effect sizes of cognitive and locomotive experiments in the 5XFAD mice compared with those in the wild-type mice. Our results suggest that for long-term memory analysis, the novel object recognition test (
    MeSH term(s) Humans ; Mice ; Animals ; Alzheimer Disease/genetics ; Amyloid beta-Peptides ; Mice, Transgenic ; Behavior Rating Scale ; Cognition ; Disease Models, Animal
    Chemical Substances Amyloid beta-Peptides
    Language English
    Publishing date 2023-10-11
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2019364-6
    ISSN 1422-0067 ; 1422-0067 ; 1661-6596
    ISSN (online) 1422-0067
    ISSN 1422-0067 ; 1661-6596
    DOI 10.3390/ijms242015064
    Database MEDical Literature Analysis and Retrieval System OnLINE

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