• Title/Summary/Keyword: Anatomical research

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Protective effects of curcumin on chromatin quality, sperm parameters, and apoptosis following testicular torsion-detorsion in mice

  • Shahedi, Abbas;Talebi, Ali Reza;Mirjalili, Aghdas;Pourentezari, Majid
    • Clinical and Experimental Reproductive Medicine
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    • v.48 no.1
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    • pp.27-33
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    • 2021
  • Objective: The chief outcome of testicular torsion in clinical and experimental contexts is testicular ischemia. Curcumin, a compound with anti-inflammatory and antioxidant properties, has fascinated researchers and clinicians for its promise in the treatment of fertility diseases. Methods: Thirty-five fully grown male mice were randomly classified into five groups: control, sham, testicular torsion, treatment group 1 (testicular torsion+short-term curcumin), and treatment group 2 (testicular torsion+long-term curcumin). Thirty-five days later, spermatozoa from the right cauda epididymis were analyzed with regard to count and motility. Toluidine blue (TB), aniline blue (AB), and chromomycin A3 (CMA3) staining assays were used to evaluate the sperm chromatin integrity. In addition, the terminal deoxynucleotidyl transferase-mediated deoxyuridine triphosphate nick-end labeling (TUNEL) test was used to assess apoptosis. Results: Treatment group 1 exhibited a remarkably elevated sperm count compared to the testicular torsion group. Additionally, notably lower sperm motility was found in the testicular torsion group compared to the control, treatment 1, and treatment 2 groups. Staining (CMA3, AB, and TB) and the TUNEL test indicated significantly greater testicular torsion in the torsion group compared to the control group (p<0.05). The data also revealed notably lower results of all sperm chromatin assays and lower apoptosis in both treatment groups relative to the testicular torsion group (p<0.05). Significantly elevated (p<0.05) AB and TB results were noted in treatment group 1 compared to treatment group 2. Conclusion: Curcumin can compensate for the harmful effects of testicular ischemia and improve sperm chromatin quality in mice.

Inter-Examiner and Intra-Examiner Reliability of Sacroiliac Anatomical Landmarks Palpation Test in Standing Posture (선 자세에서 엉치엉덩관절뼈 기준점 촉진의 검사자간, 검사자내 신뢰도)

  • Yim, Beom-Chang;Lee, Jung-Ah;Yi, Chung-Hwi
    • Physical Therapy Korea
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    • v.14 no.2
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    • pp.61-67
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    • 2007
  • The purpose of this study was to examine inter- and intra-examiner reliability of the sacroiliac joint (SIJ) anatomical landmarks palpation. Two physical therapists and one doctor specializing in rehabilitation examined 22 asymptomatic subjects. They examined anterior superior iliac supine (ASIS), posterior superior iliac supine (PSIS) and iliac crest (IC). For the assessment of intra-examiner reliability, 3 examiners repeated the measurements 3 times over a 2-week interval. Kappa (Kg) yielded intra-examiner reliability that ranged between slight to fair for the ASIS (Kg=.06 to .26; mean Kg=.19), and slight for the PSIS(Kg=-.04 to .18; mean Kg=.07) and slight to fair for the IC (Kg=.06 to .32; mean Kg=.21). Inter-examiner reliability was slight (ASIS Kg=.13; PSIS Kg=.05; IC Kg=.14). These results suggest that the reliability of the assessing SIJ anatomical landmarks using palpation and observation as an indication of SIJ dysfunction still remains questionable. Before this test can be relied upon as an accurate indicator of SIJ dysfunction, it must undergo further research. This further research needs to examine not only reliability, but also validity, sensitivity and specificity.

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Anatomical Distribution of Colorectal Carcinoma in Iran: A Retrospective 15-yr Study to Evaluate Rightward Shift

  • Omranipour, Ramesh;Doroudian, Rana;Mahmoodzadeh, Habibollah
    • Asian Pacific Journal of Cancer Prevention
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    • v.13 no.1
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    • pp.279-282
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    • 2012
  • Background: Although more than two third of colorectal cancers are localized on the left side, recent studies suggest a right ward shift in anatomical distribution with increase in proximal colon cancers. The aim of the present study was to determine the anatomical distribution of colorectal cancer in a referral center over a 15 year period. Method: Records of patients who underwent colectomy in the Cancer Institute of Iran from 1994 to 2009 were retrieved. Data including anatomical localization, year of diagnosis, patient age and gender, tumor histology and differentiation, and disease stage were extracted. Tumors located from the cecum to the distal transverse colon were classified as right side and those occurring from the splenic flexure to the descending colon as left-sided. Cancer of rectum and recto-sigmoid junction were considered as rectal cancers. Results: A total of 442 patients including 220 (49/8%) men and 222 (50/2%) women with mean age 53 were included. Most patients were in stage II &III (47.1% and 33% respectively). There were 157 (35.5 %) colon cancers and 285 (64.5%) rectal cancers. 43.3% of the colon cancers were right sided and 56.7% were left sided. There was no statistically significant increase in right sided cancer during the period of the study. There were no significant differences in age at diagnosis, gender, grade and stage of tumor between the right and the left sided cancers. Conclusion: No proximal shift over time was identified in our study.

Image quality assessment of pre-processed and post-processed digital panoramic radiographs in paediatric patients with mixed dentition

  • Suryani, Isti Rahayu;Villegas, Natalia Salvo;Shujaat, Sohaib;De Grauwe, Annelore;Azhari, Azhari;Sitam, Suhardjo;Jacobs, Reinhilde
    • Imaging Science in Dentistry
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    • v.48 no.4
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    • pp.261-268
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    • 2018
  • Purpose: To determine the impact of an image processing technique on diagnostic accuracy of digital panoramic radiographs for the assessment of anatomical structures in paediatric patients with mixed dentition. Materials and Methods: The study consisted of 50 digital panoramic radiographs of children aged from 6 to 12 years, which were later on processed using a dedicated image processing method. A modified clinical image quality evaluation chart was used to evaluate the diagnostic accuracy of anatomical structures in maxillary and mandibular anterior and maxillary premolar region of processed images. Results: A statistically significant difference was observed between pre and post-processed evaluation of anatomical structures(P<0.05) in the maxillary and mandibular anterior region. The anterior region was found to be more accurate in post-processed images. No significant difference was observed in the maxillary premolar region (P>0.05). The Inter-observer and intra-observer reliability of both pre and post processed images were excellent (>0.82) for anterior region and good (>0.63) for premolar region. Conclusion: The application of image processing technique in digital panoramic radiography can be considered a reliable method for improving the quality of anatomical structures in paediatric patients with mixed dentition.

Comparison of Characteristics of Ganoderma lucidum According to Geographical Origins : Consideration of Morphological Characteristics(II)

  • Kim, Hong-Kyu;Seo, Geon-Sik;Kim, Hong-Gi
    • Mycobiology
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    • v.29 no.2
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    • pp.80-84
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    • 2001
  • Nine species of genus Ganoderma different in cultural characteristics each other were separated by histo-anatomical differences. Differences among the species and geographic distribution of G. lucidum were also analyzed to provide the criteria for the classification of Korean cultivation or wild type strains. Korean cultivation and wild type strains were quiet different from other species as well as Taiwan and North American G. lucidum strains in histo-anatomical traits of Ganoderma. Pore color of Korean G. lucidum strains was less brown than those of Taiwan and North American strains. Shapes of pores were round or circular in Korean strains but ellipsoidal or angular in Taiwan or North American strains. Pore numbers of Korean strains were more than those($4{\sim}6/mm$) of Taiwan or North American strains. Hardness of the pileus of Korean strains was much more than that of Taiwan or North American strains. Such characteristics of Korean strains were different from those of other species of Ganoderma. Korean G. lucidum strains could be classified into the other group because they had many different traits in growth characteristics of fruiting bodies and histo-anatomical characteristics from those of Taiwan or North American G. lucidum and other species of G. lucidum complex.

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Software Implementation for 3D visualization of brain fiber tractography and high-resolution anatomical data

  • Oh, Jung-Su;Song, In-Chan;Ikhwan Cho;Kim, Jong-Hyo;Chang, Kee-Hyun;Park, Kwang-Suk
    • Proceedings of the KSMRM Conference
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    • 2003.10a
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    • pp.32-32
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    • 2003
  • The purpose of paper is to implement a PC-based software for 3D visualization of brain fiber tractography and high-resolution anatomical data 서론: DTI (Diffusion tensor imaging) is a very useful noninvasive MRI technique for providing the direction and connectivity information of brain fiber tracts. Especially in patients with glioma, fiber tracts on the lesion side in the brain had varying degrees of displacement or disruption as a result of the tumor. Tract disruption resulted from direct tumor involvement, compression on the tract, and vasogenic edema surrounding the tumor. To combine information on fiber tracts surrounding turner with a high-resolution anatomical 3D image may be clinically useful for surgical planning. Therefore we implemented a software for visualizing both brain fiber tractography and anatomical data.

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Software Implementation for 3D visualization of brain fiber tractography and high-resolution anatomical data

  • Oh, Jung-Su;Song, In-Chan;Ikhwan Cho;Kim, Jong-Hyo;Chang, Kee-Hyun;Park, Kwang-Suk
    • Proceedings of the KSMRM Conference
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    • 2003.10a
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    • pp.83-83
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    • 2003
  • Purpose: The purpose of paper is to implement a PC-based software for 3D visualization of brain fiber tractography and high-resolution anatomical data introduction: DTI (Diffusion tensor imaging) is a very useful noninvasive MRI technique for providing the direction and connectivity information of brain fiber tracts. Especially in patients with glioma, fiber tracts on the lesion side in the brain had varying degrees of displacement or disruption as a result of the tumor. Tract disruption resulted from direct tumor involvement, compression on the tract, and vasogenic edema surrounding the tumor. To combine information on fiber tracts surrounding tumor with a high-resolution anatomical 3D image may be clinically useful for surgical planning. Therefore we implemented a software for visualizing both brain fiber tractography and anatomical data.

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3-Dimensional Dental Surgery System based on PC using anatomical landmarks (해부학적 계측점을 이용한 PC-기반3차원 치과수술 시스템)

  • 이경상;유선국;김형돈;배현수;김남현
    • Journal of Biomedical Engineering Research
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    • v.20 no.2
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    • pp.139-148
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    • 1999
  • In this paper, we designed the dental surgery system based on PC. This system predict post operated 3-dimensional image, So the patient has no need to take CT after surgery and expose his body to radiological damage. We predict the post operated skull from the patient's CT with pre and post cephalometry X-ray. Our novel procedures, to register X-ray and CT, are based on anatomical landmarks, singular value decomposition. And we display the predicted image 3-dimensionally by surface rendering. We verified this system by dry skull experiment and clinical experiment. When significance level is 0.05, there is on significance.

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Anatomical Study on the Dogmaek-Gyeong and Immaek-Gyeong of the Oriental Medicine (독맥경과 임맥경에 대한 해부학적 고찰)

  • Kim, Soo-Myung
    • Journal of Haehwa Medicine
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    • v.7 no.2
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    • pp.601-607
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    • 1999
  • The human body consists of the twelve main meridians and the eight extra meridians including Dogmaek-Gyeong and Immaek-Gyeong. This study is on twenty-eight acupuncture points Dogmaek-Gyeong and twenty-four acupuncture points Immaek-Gyeong among the eight extra meridians. It is very important to know the accurate acupuncture points, which is the fundamental subject in the Oriental Medicine. From now on they have expressed in Chinese letters and old anatomical terms, acupuncture points are difficult and confused to learn. In order to understand acupuncture points easily, they are translated into Korean anatomical terms focused on osteology in this study. Dogmaek-Gyeong is the meridian of this vessel run along the posterior meridian line of the body. The boundary commences at the coccyx, mounts the length of the vertebral column, contours the skull of the vertex along the philtrum to terminate upon the upper gum. It has twenty-eight acupuncture points. Immaek-Gyeong is the meridian of this vessel run along the anterior meridian line of the body. The boundary commences at the perineum mounts the pubic symphysis along the umbilicus, mandible and the terminates at concave of the lower lip. It has twenty-four acupuncture points.

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A Study on Pullout Characteristics of Pedicle Screw Design Considering Anatomical Structure of the Lumbar Spine (척추의 해부학적 요소를 고려한 척추경 나사못 디자인의 Pullout 특성 연구)

  • Yoo, Kyeong-Joo;Park, Kwang-Min;Ahn, Kyoung-Gee;Ahn, Yoon-Ho
    • Journal of Biomedical Engineering Research
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    • v.42 no.1
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    • pp.1-6
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    • 2021
  • Recently, various types of pedicle screws have been developed considering the anatomical structure of the spine. The purpose of this study was to evaluate the pullout stiffness and strength of two types of commercial pedicle screws. The design of two type screws were single pitched thread (ST) pedicle screw and dual pitched thread (DT) pedicle screw, respectively. The tests were conducted in accordance with the ASTM standards using polyurethane (PU) test blocks which has anatomical structure of the spine. There was no significant difference in pullout stiffness between two types of screw. However, DT exhibited higher pullout strength than ST (p<0.05). Pedicle screw with dual pitched thread showed higher pullout strength without decrease in pullout stiffness compared to the standard pedicle screw. In conclusion, dual pitched thread design of the pedicle screw is considered to be more suitable than the single pitched thread for the anatomical structure of the spine.