1.Electroacupuncture analgesia is enhanced in transgenic nociceptin/orphanin FQ knock-out mice
You WAN ; Ji-sheng HAN ; John E. Pintar
Journal of Peking University(Health Sciences) 2009;41(3):376-379
Objective: The modulatory effects of nociceptin/orphanin FQ ( OFQ) on acupuncture ( EA, a odern version of acupuncture)-induced analgesia are still controversial. Transgenic OFQ knock-out mice rovide us a useful tool to investigate the role of endogenous OFQ in EA analgesia. The present tudy aims to investigate the role of OFQ in the EA-induced analgesia with OFQ knock-out mice. ethods; Acupoints were selected as "Zusanli" (ST36) and "Sanyinjiao" (SP6) , EA parameters were as ollows; constant current output, rectangular (square) wave pulses, increased intensities of 0. 5, 0. 7,0. 9 mA with stepwise fashion, 10 min for each intensity, frequency of 100 Hz (with 0. 2 ms as ulse width) or 2 Hz ( with 0. 6 ms as pulse width). Tail flick latency (TFL) evoked by radiant heat was used to evaluate the change of pain threshold before, during and after EA application. Thenock-out mice were divided randomly into 3 groups; needling control, EA at 100 Hz and 2 Hz. ild-type mice of litter-mates of were used as Control. Results: It was found that OFQ knock-out mice had a longer basal ther-mal threshold; EA had enhanced analgesic effect in the knock-out mice than in wild-type Control mice. Conclusion: Endogenous OFQ might be algesic in basal condition and antagonize EA analgesia.
2.Cardiovascular Disease, Cancer and Reproductive Hazards in Firefighters.
Journal of the Korean Medical Association 2008;51(12):1097-1102
Firefighters are facing occupational hazards such as exposures to a variety of carcinogens and toxic agents, heat, physical stress and psychological stress. This occupation involves an increased risk of particular health concerns including cardiovascular diseases, cancers, and reproductive hazards. Cardiovascular diseases are the leading cause of lifetime mortality among the firefighters as well as the principal cause of on-duty deaths. In spite of "healthy worker effect", a number of studies have found an increased risk of cardiovascular disease morbidity and mortality in firefighters. There are various carcinogens in the fire smoke. Many studies address that some types of cancers are related to firefighting. These cancers include brain tumors, cancers of hematopoietic and lymphatic systems, cancers of genitourinary tract, and skin cancers. To date, the relationship between firefighting and reproductive hazards has not been widely studied. However, since firefighters are exposed to various chemical and physical hazards which might influence the reproductive systems, the concerns are raising. It is important to recognize that firefighters are at a risk of several significant health problems. To reduce the risk, it should be encouraged to use protective equipments efficiently and manage physically exerted firefighters appropriately at the fire scene. Furthermore, we should activate not only screening programs to detect health risk factors, but also medical programs to help firefighters maintain a good physical fitness.
Brain Neoplasms
;
Carcinogens
;
Cardiovascular Diseases
;
Firefighters
;
Fires
;
Hot Temperature
;
Humans
;
Lymphatic System
;
Mass Screening
;
Occupations
;
Risk Factors
;
Skin Neoplasms
;
Smoke
;
Stress, Psychological
3.Supraventricular Tachycardia and Sinus Rhythm with Contralateral Bundle Branch Block Patterns.
Seongwook HAN ; John M MILLER ; Mithilesh Kumar DAS
Korean Circulation Journal 2014;44(4):271-273
A contralateral bundle branch block (BBB) aberration during tachycardia with a preexisting BBB strongly suggests the presence of ventricular tachycardia. We report on a middle-aged, female patient presented with wide QRS tachycardia. The patient had orthodromic atrioventricular tachycardia with a left BBB aberration in the presence of a preexisting right BBB due to an abnormal His-Purkinje system. We learned that the contralateral BBB aberration with supraventricular tachycardia could be seen when the His-Purkinje system was abnormal.
Bundle of His
;
Bundle-Branch Block*
;
Female
;
Humans
;
Purkinje Fibers
;
Tachycardia
;
Tachycardia, Supraventricular*
;
Tachycardia, Ventricular
4.A Case of Guillain-Barr Syndrome Coinciding with Bronchial Asthma associated with Mycoplasma Pneumonia.
Kyung Yil LEE ; Dong Joon LEE ; Sang Won CHA ; Ji Whan HAN ; John Sung LEE ; Kyung Tai WHANG
Journal of the Korean Pediatric Society 1999;42(8):1165-1169
Mycoplasma pneumoniae is the most common etiologic agent of pneumonia in school-aged children and young adults. It involves not only the respiratory system but includes extrapulmonary complications such as exanthem, hemolysis, arthritis, hepatic dysfuction, cardiac disease, and central nervous system disease. The pathogenesis of extrapulmonary involvements may be an autoimmune phenomena. Recent studies suggest that bronchial asthma can be initiated by Mycoplasma pneumoniae infection. We experienced a five-year-old girl suffering simultaneously from Guillain-Barr syndrome and initial bronchial asthmatic attack after mycoplasma pneumonia. She was admitted with lower-leg pain and weakness for three days. Ten days before admission, she was coughing and showed on a chest X-ray, pneumonic infitrations of both subhilar peribronchial areas. The titers of anti-mycoplasma antibody and cold hemagglutinin were 1:80 and 1:32, respectively. With a progression of paralysis to the upper extremities, she showed dyspnea, dysphagia and right facial palsy on the second hospital day. We performed a tracheostomy and started artificial ventilation. Unexpectedly, she showed continuous dyspnea, poor lung aeration and revealed severe hypoxemia in serial arterial gas analysis. Intravenous theophylline, high-dose corticosteroid and intravenous immunoglobulin therapy resulted in a progressive improvement of lung condition. She recovered completely from neurologic and pulmonic complications after five weeks.
Anoxia
;
Arthritis
;
Asthma*
;
Central Nervous System
;
Child
;
Cough
;
Deglutition Disorders
;
Dyspnea
;
Exanthema
;
Facial Paralysis
;
Female
;
Heart Diseases
;
Hemagglutinins
;
Hemolysis
;
Humans
;
Immunization, Passive
;
Lung
;
Mycoplasma pneumoniae
;
Mycoplasma*
;
Paralysis
;
Pneumonia
;
Pneumonia, Mycoplasma*
;
Respiratory System
;
Theophylline
;
Thorax
;
Tracheostomy
;
Upper Extremity
;
Ventilation
;
Young Adult
5.Clinical and Molecular Delineation of a Novel De Novo 4q28.3-31.21 Interstitial Deletion in a Patient with Developmental Delay.
John Hoon RIM ; Seong Woo KIM ; Sung Hee HAN ; Jongha YOO
Yonsei Medical Journal 2015;56(6):1742-1744
No abstract available.
Child
;
Chromosome Banding
;
*Chromosome Deletion
;
Chromosomes, Human, Pair 4/*genetics
;
Comparative Genomic Hybridization
;
Developmental Disabilities/diagnosis/*genetics
;
Humans
;
Male
;
Sequence Deletion
6.16S Ribosomal RNA Identification of Prevotella nigrescens from a Case of Cellulitis.
John Jeongseok YANG ; Tae Yoon KWON ; Mi Jeong SEO ; You Sun NAM ; Chung Soo HAN ; Hee Joo LEE
Annals of Laboratory Medicine 2013;33(5):379-382
No abstract available.
Acupuncture Therapy
;
Ampicillin/pharmacology/therapeutic use
;
Ankle/ultrasonography
;
Anti-Bacterial Agents/pharmacology/therapeutic use
;
Cellulitis/complications/diagnosis/drug therapy/*microbiology
;
Diabetes Mellitus, Type 2/complications
;
Gram-Negative Bacterial Infections/complications/diagnosis/drug therapy/*microbiology
;
Humans
;
Hypertension/complications
;
Magnetic Resonance Imaging
;
Male
;
Microbial Sensitivity Tests
;
Middle Aged
;
Prevotella nigrescens/drug effects/*genetics/isolation & purification
;
RNA, Ribosomal, 16S/*analysis
;
Sulbactam/pharmacology/therapeutic use
;
Tomography, X-Ray Computed
7.Simultaneous Three Color Detection of Surface Antigen (My 7), Intracellular Antigen (c-myc), and DNA Content using Single Laser Flow Cytometry.
Ku Taek HAN ; Ki Sung RYU ; Sung Eun NAMKOONG ; Soo Pyung KIM ; Jong Gu RHA ; Seung Kyu SONG ; Seong Jo KIM ; Hun Young LEE ; John PARKER
Korean Journal of Obstetrics and Gynecology 1997;40(1):181-190
Flow cytometry, a useful tool for measuring DNA content and cell differentiation as expressed by cell surface markers, is utilized to measure multiple antigens, especially surface antigen, intracellular oncoprotein, and DNA content, simultaneously. For this simultaneous detection, several methods off ixation and permeabilization have been used with limited values. In this study, 20 ng/ml of lysolecithin in 1% paraformaldehyde solution was utilized for fixation and permeabilization of cultured promyelocytic leukemic cells(HL 60). The cells were first stained with phycoerythrin (PE)-conjugated monoclonal antibody to the cell surface My 7 antigen and then were fixed and permeabilized with 20 ng/ml of lysolecithin in 1% partormaldehyde solution. After incubation, the fixed and permeabilized cells were stained with monoclonal antibody to intracellular c-myc antigen, which were followed by fluorescein isothiocyanate (FITC)-conjugated secondary antibody. The c-myc stained cells were finally stained for DNA content with 7-amino-actinomycin D(7-AAD). This procedure permits excellent staining for intracellular oncoproteins and preservation of surface antigens with relatively low cofficients of variation (CV) for the G0G1 peak of the DNA histograms and suggests that the sequential staining procedure of surface antigen, intracellular antigen, and DNA content will be extended for the study of correlations with cellular differentiation, expression of oncoproteins, and cell cycle analysis in the cells which are obtained from human malignant diseases using a 488 nm single laser flow cytometry.
Antigens, Surface*
;
Cell Cycle
;
Cell Differentiation
;
DNA*
;
Flow Cytometry*
;
Fluorescein
;
Humans
;
Oncogene Proteins
;
Phycoerythrin
8.Reemergence of the bedbug Cimex lectularius in Seoul, Korea.
In Yong LEE ; Han Il REE ; Song Jun AN ; John Alderman LINTON ; Tai Soon YONG
The Korean Journal of Parasitology 2008;46(4):269-271
A healthy 30-yr-old woman carrying an insect that had been caught in her living room visited the International Clinic at Severance Hospital, Seoul, in December 2007. The insect she brought was identified to be a nymph of a bedbug, Cimex lectularius, and her skin rashes looked typical bedbug's bites. Her apartment was investigated, and a dead body of a bedbug, cast skins, and hatched eggs were found in her rooms and neighbors' rooms in the same building. She was living in that apartment in Seoul for 9 months since she had moved from New Jersey, USA. We assume that the bedbugs were introduced from abroad, since there had been no report on bedbugs in Seoul for more than 2 decades at least. This is a report of a reemergence of the common bedbug, C. lectularius in Seoul, Korea.
Adult
;
Animals
;
*Bedbugs/anatomy & histology
;
Dermatitis/*pathology
;
Female
;
Humans
;
Insect Bites and Stings/*pathology
;
Insecticides
;
Korea/epidemiology
9.Anatomy of Pitanguy's Dermocartilaginous Ligament.
Doug John PARK ; Seung Kyu HAN ; Seong Ho JEONG ; Woo Kyung KIM
Journal of the Korean Society of Plastic and Reconstructive Surgeons 2007;34(2):176-180
PURPOSE: Pitanguy conducted a series of anatomical studies on "dermocartilaginous ligament" of the nose. However, information on its structure is as yet insufficient, especially in terms of its origin, insertion, and relationships with surrounding tissues. In addition, some of the histologic findings described by Pitanguy are controversial. The present study was undertaken to clarify the anatomy of the "dermocartilaginous ligament". METHODS: Sixteen cadaver noses were examined macroscopically and histologically to determine the presence, origin, insertion, composition, and relationship of the "dermocartilaginous ligament" with surrounding structures. RESULTS: The structure originated from the deep layer of the transverse nasalis muscle and terminated at the caudal edge of the septal cartilage in all 16 cadavers. However, in three cadavers the insertion extended to the orbicularis oris muscle. No direct connection was found between the structure and dermis of dorsal nasal skin. The dermocartilaginous ligaments were mainly composed of a condensation of thin collagen bundles, which were interwoven and without any regular orientation. Elastic fibers were also present in small numbers, and there were few amorphous ground substances. Neither muscle fibers nor chondrocytes was identified within dermocartilaginous ligaments. CONCLUSION: Our macroscopic and histologic findings of the structure do not support the use of the term "dermocartilaginous ligament". According to its origin, insertion, and histologic findings, we recommend that this structure be referred to as the "median musculocartilaginous fascia".
Cadaver
;
Cartilage
;
Chondrocytes
;
Collagen
;
Dermis
;
Elastic Tissue
;
Ligaments*
;
Nose
;
Skin
10.Comparative insect fauna succession on indoor and outdoor monkey carrions in a semi-forested area in Malaysia
Ahmad Wasi Nazni ; Lim Han Lee ; Dhang Chee Chen ; Chin Chong Heo ; AG Abdullah ; Mustaffa Wan Wan-Norjuliana ; Kian Wai Chew ; Jeffery John ; Hashim Rosli ; Azirun Mohd Sofian
Asian Pacific Journal of Tropical Biomedicine 2011;(z2):232-238
Objective: To study the occurrence of insects fauna obtained in a semi forested area in Malaysia using the carcass of the monkey Macaca fascicularis, Raffles, and to compared the wave of insect succession collected from the carcass placed outdoor and indoor. Methods:The outdoor and indoor studies were conducted at a location of 3o17’57.86”N, 101o47’00.78”E. The euthanized monkeys were placed indoor and outdor. The insect seccession visited the carcass, the envirenmental temperature and relative humidity were recorded. Results:The main insects attracted to specific stages of decomposition were mainly members of Diptera and Coleoptera. There was a delay of fly arrival by two days in indoor carcass. Nocturnal oviposition behaviour was not observed in this study. The flies left the carcass during the twilight zone as noted during a 3 days observation period in outdoor study. The dipteran species found outdoor and indoor were similar but more diverse coleopteran species was found indoor. Conclusions:Information and evidence from this study can be used to improve the estimation of the post mortem interval in forensic cases.