Ganglion cysts of the cruciate ligament are quite rare. Ganglion cysts on the anterior cruciate ligament(ACL) should be suspected in any patient having pain and clicking sensation during terminal knee extension. A few cases have been reported concerning ganglion cysts present on the surface of the anterior cruciate ligament. We report three cases of a ganglion cysts on the ACL that was treated with arthroscopic excision.
Anterior Cruciate Ligament ; Ganglion Cysts ; Humans ; Knee ; Ligaments ; Sensation

Doxorubicin (DOX) is one of the most potent anticancer drugs and induces acute cardiac arrhythmias and chronic cumulative cardiomyopathy. Though DOX-induced cardiotoxicity is known to be caused mainly by ROS generation, a disturbance of Ca2+ homeostasis is also implicated one of the cardiotoxic mechanisms. In this study, a molecular basis of DOX-induced modulation of intracellular Ca2+ concentration ([Ca2+]i) was investigated. Treatment of adult rat cardiomyocytes with DOX increased [Ca2+]i irrespectively of extracellular Ca2+, indicating DOX-mediated Ca2+ release from intracellular Ca2+ stores. The DOX-induced Ca2+ increase was slowly processed and sustained. The Ca2+ increase was inhibited by pretreatment with a sarcoplasmic reticulum (SR) Ca2+ channel blocker, ryanodine or dantrolene, and an antioxidant, alpha-lipoic acid or alpha-tocopherol. DOX-induced ROS generation was observed immediately after DOX treatment and increased in a time-dependent manner. The ROS production was significantly reduced by the pretreatment of the SR Ca2+ channel blockers and the antioxidants. Moreover, DOX-mediated activation of caspase-3 was significantly inhibited by the Ca2+ channel blockers and a-lipoic acid but not a-tocopherol. In addition, cotreatment of ryanodine with alpha-lipoic acid resulted in further inhibition of the casapse-3 activity. These results demonstrate that DOX-mediated ROS opens ryanodine receptor, resulting in an increase in [Ca2+]i and that the increased [Ca2+]i induces ROS production. These observations also suggest that DOX/ROS-induced increase of [Ca2+]i plays a critical role in damage of cardiomyocytes.
Sarcoplasmic Reticulum/drug effects ; Ryanodine Receptor Calcium Release Channel/metabolism ; Reactive Oxygen Species/*chemical synthesis ; Rats, Sprague-Dawley ; Rats ; Myocytes, Cardiac/*drug effects ; Male ; Female ; Enzyme Activation/drug effects ; Doxorubicin/*pharmacology ; Cells, Cultured ; Caspase 3/metabolism ; Calcium Channel Blockers/pharmacology ; Calcium/*metabolism ; Antioxidants/pharmacology ; Antibiotics, Antineoplastic/pharmacology ; Animals

ADP-ribosyl cyclase (ADPR-cyclase) produces a Ca2+-mobilizing second messenger, cyclic ADP- ribose (cADPR), from beta-NAD+. A prototype of mammalian ADPR-cyclases is a lymphocyte antigen CD38. Accumulating evidence indicates that ADPR-cyclases other than CD38 are expressed in various cells and organs. In this study, we discovered a small molecule inhibitor of kidney ADPR-cyclase. This compound inhibited kidney ADPR-cyclase activity but not CD38, spleen, heart or brain ADPR-cyclase activity in vitro. Characterization of the compound in a cell-based system revealed that an extracellular calcium-sensing receptor (CaSR)- mediated cADPR production and a later long-lasting increase in intracellular Ca2+ concentration ([Ca2+]i) in mouse mesangial cells were inhibited by the pre-treatment with this compound. In contrast, the compound did not block CD3/TCR-induced cADPR production and the increase of [Ca2+]i in Jurkat T cells, which express CD38 exclusively. The long-lasting Ca2+ signal generated by both receptors was inhibited by pre-treatment with an antagonistic cADPR derivative, 8-Br-cADPR, indicating that the Ca2+ signal is mediated by the ADPR-cyclse metabolite, cADPR. Moreover, among structurally similar compounds tested, the compound inhibited most potently the cADPR production and Ca2+ signal induced by CaSR. These findings provide evidence for existence of a distinct ADPR-cyclase in the kidney and basis for the development of tissue specific inhibitors.
Receptors, Calcium-Sensing/metabolism ; Rats, Sprague-Dawley ; Rats ; Mice ; Kidney/*enzymology ; Humans ; Enzyme Inhibitors/chemistry/*pharmacology ; Cyclic ADP-Ribose/*metabolism ; Cell Line ; *Calcium Signaling ; Azo Compounds/chemistry/*pharmacology ; Animals ; ADP-ribosyl Cyclase/*antagonists & inhibitors/*metabolism

We report a case of a 25-month-old girl presented to us for the evaluation of a severe delayed psychomotor development who also has pigmentary abnormalities. Linear and whorled hyperpigmentations following Blaschko's lines were noticed on her entire body except on her face, palms, soles, eyes and mucous membranes, which closely resembled those found in hypomelanosis of Ito, but inversely pigmented. Histologic examination revealed basal layer hyperpigmentation without incontinence of pigment or dermal melanophages. Chromosomal analysis of cultured peripheral leukocytes and fibroblasts from the hyperpigmented and the hypopigmented skin revealed normal female karyotype with no evidence of mosaicism or chimerism. This entity represents a kind of neurocutaneous syndrome-referred to by some authors as linear and whorled nevoid hypermelanosis.
Case Report ; *Child Development ; Child, Preschool ; Female ; Human ; Melanosis/*pathology/*physiopathology ; Nevus/*pathology ; *Psychomotor Performance ; Syndrome

PURPOSE: The purpose of this study was to analyze and assess the current situation of Korea's school health education program and to establish measures to efficiently carry out school health education in Korea. METHOD: The survey was conducted through the internet with the health educators of elementary, middle, and high schools nationwide to assess the current condition of school health education programs, and 2,459 samples were collected which accounted for 23.4% of the total respondents. RESULTS: According to school health educators on the enforcement of health education, the higher the education became, the less the health education was enforced. The enforcement rate was 96.9% in elementary schools, 76.7% in middle schools, and 67.3% in high schools. The major reasons were found as difficulty in securing class time (54.5%) and other excessive workloads (20.9%). As a result of the health education awareness survey, over 99% answered that health education is needed, over 80% answered that the education requires independent health textbooks, and over 95% answered that health educators are suitable for the person in charge of the education. CONCLUSION: This study will be a useful in establishing a detailed policy on enhancing school health education in the future.
Adolescent ; Adult ; Aged ; Child ; Health Education/organization & administration/*trends ; Humans ; Korea ; Male ; Middle Aged ; Questionnaires ; School Health Services/*trends

The drug inducing tubulointerstitial nephritis is a crucial cause of acute kidney injury. Use of herbal plants in disease treatment is generally practiced in Korea. Although there are a small number of case reports, tubulointerstitial nephritis caused by taking Atractylodes macrocephala Koidzumi in human has never been reported. A 62-year-old man visited our hospital with symptoms of systemic edema accompanied by reduced urine volume and dyspnea after taking herbal plant 1 week ago. Chest radiographs showed both sided pleural effusion. Blood test results showed elevation of serum blood urea nitrogen and creatinine level and urine test results showed hematuria and proteinuria. Renal biopsy result showed evidence of tubulointerstitial nephritis by tubulitis and inflammatory cell expansion in the interstitium was observed. The patient's renal function recovered after administration of active renal replacement treatment and conservative therapy such as supplementation of fluid and electrolytes, and there was no disease recurrence for 1 year. Therefore, this case proved that Atractylodes macrocephala Koidzumi could cause acute kidney injury by the drug induced tubulointerstitial nephritis in human.
Acute Kidney Injury* ; Atractylodes* ; Biopsy ; Blood Urea Nitrogen ; Creatinine ; Dyspnea ; Edema ; Electrolytes ; Hematologic Tests ; Hematuria ; Herbal Medicine ; Humans ; Korea ; Middle Aged ; Nephritis ; Nephritis, Interstitial ; Plants ; Pleural Effusion ; Proteinuria ; Radiography, Thoracic ; Recurrence ; Renal Dialysis

Absorbed dose to water based protocols recommended that plane-parallel chambers be calibrated against calibrated cylindrical chambers in a high energy electron beam with R50>7 g/cm2 (E> or =16 MeV). However, such high-energy electron beams are not available at all radiotherapy centers. In this study, we are compared the absorbed dose to water determined according to cross-calibration method in a high energy electron beam of 16 MeV and in electron beam energies of 12 MeV below the cross-calibration quality remark. Absorbed dose were performed for PTW 30013, Wellhofer FC65G Farmer type cylindrical chamber and for PTW 34001, Wellhofer PPC40 Roos type plane-parallel chamber. The cylindrical and the plane-parallel chamber to be calibrated are compared by alternately positioning each at reference depth, zref=0.6R50-0.1 in water phantom. The DW of plane-parallel chamber are derived using across-calibration method at high-energy electron beams of 16, 20 MeV. Then a good agreement is obtained the DW of plane-parallel chamber in 12 MeV. The agreement between 20 MeV and 12 MeV are within 0.2% for IAEA TRS-398.
Electrons ; Water

Background: Tinnitus is a bothersome condition associated with various symptoms. However, the mechanisms of tinnitus are still uncertain, and a standardized assessment of the diagnostic criteria for tinnitus is required. We aimed to reach a consensus on diagnosing tinnitus with professional experts by conducting a Delphi study with systematic review of the literature. Methods: Twenty-six experts in managing tinnitus in Korea were recruited, and a two-round modified Delphi study was performed online. The experts evaluated the level of agreement of potential criteria for tinnitus using a scale of 1–9. After the survey, a consensus meeting was held to establish agreement on the results obtained from the Delphi process. Consensus was defined when over 70% of the participants scored 7–9 (agreement) and fewer than 15% scored 1–3 (disagreement). To analyze the responses of the Delphi survey, the content validity ratio and Kendall’s coefficient of concordance were evaluated. Results: Consensus was reached for 22 of the 38 statements. For the definition of tinnitus, 10 out of 17 statements reached consensus, with three statements achieving complete agreement including; 1) Tinnitus is a conscious perception of an auditory sensation in the absence of a corresponding external stimulus, 2) Tinnitus can affect one’s quality of life, and 3) Tinnitus can be associated with hearing disorders including sensorineural hearing loss, vestibular schwannoma, Meniere’s disease, otosclerosis, and others. For the classification of tinnitus, 11 out of 18 statements reached consensus. The participants highly agreed with statements such as; 1) Vascular origin is expected in pulse-synchronous tinnitus, and 2) Tinnitus can be divided into acute or chronic tinnitus. Among three statements on the diagnostic tests for tinnitus only Statement 3, “There are no reliable biomarkers for sensory or emotional factors of tinnitus.”reached consensus. All participants agreed to perform pure-tone audiometry and tinnitus questionnaires, including the Tinnitus Handicap Inventory and Tinnitus Questionnaire. Conclusion We used a modified Delphi method to establish a consensus-based definition, a classification, and diagnostic tests for tinnitus. The expert panel reached agreement for several statements, with a high level of consensus. This may provide practical information for clinicians in managing tinnitus.

BACKGROUND: Though clinical practice guidelines (CPGs) for cardiac rehabilitation (CR) are an effective and widely used treatment method worldwide, they are as yet not widely accepted in Korea. Given that cardiovascular disease is the second leading cause of death in Korea, it is urgent that CR programs be developed. In 2008, the Government of Korea implemented CR programs at 11 university hospitals as part of its Regional Cardio-Cerebrovascular Center Project, and 3 additional medical facilities will be added in 2019. In addition, owing to the promotion of CR nationwide and the introduction of CR insurance benefits, 40 medical institutions nationwide have begun CR programs even as a growing number of medical institutions are preparing to offer CR. The purpose of this research was to develop evidence-based CPGs to support CR implementation in Korea. METHODS: This study is based on an analysis of CPGs elsewhere in the world, an extensive literature search, a systematic analysis of multiple randomized control trials, and a CPG management, development, and assessment committee comprised of 33 authors—primarily rehabilitation specialists, cardiologists, and thoracic surgeons in 21 university hospitals and 2 general hospitals. Twelve consultants, primarily rehabilitation, sports medicine, and preventive medicine specialists, CPG experts, nurses, physical therapists, clinical nutritionists, and library and information experts participated in the research and development of these CPGs. After the draft guidelines were developed, 3 rounds of public hearings were held with staff members from relevant academic societies and stakeholders, after which the guidelines were further reviewed and modified. RESULTS: CR involves a more cost-effective use of healthcare resources relative to that of general treatments, and the exercise component of CR lowers cardiovascular mortality and readmission rates, regardless of the type of coronary heart disease and type and setting of CR. CONCLUSION: Individualized CR programs should be considered together with various factors, including differences in heart function and lifestyle, and doing so will boost participation and adherence with the CR program, ultimately meeting the final goals of the program, namely reducing the recurrence of myocardial infarction and mortality rates.
Acute Coronary Syndrome ; Cardiovascular Diseases ; Cause of Death ; Consultants ; Coronary Disease ; Delivery of Health Care ; Heart ; Hospitals, General ; Hospitals, University ; Humans ; Insurance Benefits ; Korea ; Life Style ; Methods ; Mortality ; Myocardial Infarction ; Nutritionists ; Physical Therapists ; Preventive Medicine ; Recurrence ; Rehabilitation ; Secondary Prevention ; Specialization ; Sports Medicine ; Surgeons

OBJECTIVE: Though clinical practice guidelines (CPGs) for cardiac rehabilitation (CR) are an effective and widely used treatment method worldwide, they are as yet not widely accepted in Korea. Given that cardiovascular disease is the second leading cause of death in Korea, it is urgent that CR programs be developed. In 2008, the Government of Korea implemented CR programs at 11 university hospitals as part of its Regional Cardio-Cerebrovascular Center Project, and three additional medical facilities will be added in 2019. In addition, owing to the promotion of CR nationwide and the introduction of CR insurance benefits, 40 medical institutions nationwide have begun CR programs even as a growing number of medical institutions are preparing to offer CR. The purpose of this research was to develop evidence-based CPGs to support CR implementation in Korea. METHODS: This study is based on an analysis of CPGs elsewhere in the world, an extensive literature search, a systematic analysis of multiple randomized control trials, and a CPG management, development, and assessment committee comprised of 33 authors—primarily rehabilitation specialists, cardiologists, and thoracic surgeons in 21 university hospitals and two general hospitals. Twelve consultants, primarily rehabilitation, sports medicine, and preventive medicine specialists, CPG experts, nurses, physical therapists, clinical nutritionists, and library and information experts participated in the research and development of these CPGs. After the draft guidelines were developed, three rounds of public hearings were held with staff members from relevant academic societies and stakeholders, after which the guidelines were further reviewed and modified. PRINCIPAL CONCLUSIONS: CR involves a more cost-effective use of healthcare resources relative to that of general treatments, and the exercise component of CR lowers cardiovascular mortality and readmission rates, regardless of the type of coronary heart disease and type and setting of CR. Individualized CR programs should be considered together with various factors, including differences in heart function and lifestyle, and doing so will boost participation and adherence with the CR program, ultimately meeting the final goals of the program, namely reducing the recurrence of myocardial infarction and mortality rates.
Acute Coronary Syndrome ; Cardiovascular Diseases ; Cause of Death ; Consultants ; Coronary Disease ; Delivery of Health Care ; Heart ; Hospitals, General ; Hospitals, University ; Humans ; Insurance Benefits ; Korea ; Life Style ; Methods ; Mortality ; Myocardial Infarction ; Nutritionists ; Physical Therapists ; Preventive Medicine ; Recurrence ; Rehabilitation ; Secondary Prevention ; Specialization ; Sports Medicine ; Surgeons