1.Clinical Support of Laboratory As a Culture room in In-Vitro Fertilization Program
Toshio SHIMIZU ; Jun KANEMOTO ; Kyoichi MIYAGAWA ; Akira TAKEDA ; Sayaka CHIGA ; Hiroko SAKON ; Kiyoshi KATO ; Takaaki HONDO ; Kaoru KIMURA
Journal of the Japanese Association of Rural Medicine 2009;58(1):39-45
Taking charge of in-vitro fertilization and embryo transfer in the laboratory per se amounts to a form of clinical support. To infertile patients, it would be of great benefit if laboratory technicians make direct contact with them and give a full account of the procedure.The apprehensions entertained by them regarding infertility treatment would be removed by hearing what they want to know.In hopes of dispelling the patients' fears and doubts, we have recently started to dialogue with the patients. The face-to-face interview has made us feel confident in what we are doing aside from the lab work and feel a sense of responsibility. Moreover, we have become aware of the need to further devote ourselves to reproductive medicine in order to improve the treatment outcome.One third of the questions frequently asked by patients concerns the quality of embryos and the risk of birth defects, which are issues that challenge us involved in reproductive medicine. To give answers to these and other questions most aptly, it is necessary to share all the up-to-date information, data and knowledge among members of the staff concerned.As the tasks to be grappled with fromnow on, there are problems with unsuccessful cases after repeated IVF trials and an increasing number of patients rangingin age from 45 to 49 years. Where the infertility treatment stops is yet to bedecided in the case of elder women.For providing information and psychological support sought by patients, we keenly felt that there is a necessity to establish a closer collaborative inter-departmental relationship.
Clinical
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Fertilization
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Laboratory culture
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Support
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therapeutic aspects
2.Letter to the editor: Respective Contribution of Liquid and Solid Media to Mycobacterial Yields from Pleural Fluid in Tuberculous Pleural Effusion.
Chang Ho KIM ; Seung Ick CHA ; Jaehee LEE
Journal of Korean Medical Science 2015;30(12):1922-1923
No abstract available.
Automation, Laboratory/*methods
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Culture Media/*classification
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Female
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Humans
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Male
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Sputum/*microbiology
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Tuberculosis, Pleural/*diagnosis
3.Analysis of false-positive reaction for bacterial detection of blood samples with the automated microbial detection system BacT/ALERT 3D.
Li-Wei ZHU ; Xue-Mei YANG ; Xiao-Qin XU ; Jian XU ; Huang-Jun LU ; Li-Xing YAN
Journal of Experimental Hematology 2008;16(5):1207-1210
This study was aimed to analyze the results of false positive reaction in bacterial detection of blood samples with BacT/ALERT 3D system, to evaluate the specificity of this system, and to decrease the false positive reaction. Each reaction flasks in past five years were processed for bacteria isolation and identification. When the initial cultures were positive, the remaining samples and the corresponding units were recultured if still available. 11395 blood samples were detected. It is worthy of note that the incubator temperature should be stabilized, avoiding fluctuation; when the cultures were alarmed, the reaction flasks showed be kept some hours for further incubation so as to trace a sharply increasing signal to support the judgement of true bacterial growth. The results indicated that 122 samples (1.07%) wee positive at initial culture, out of them 107 samples (88.7%) were found bacterial, and 15 samples (12.3%) were found nothing. The detection curves of positive samples resulted from bacterial growth showed ascent. In conclusion, maintenance of temperature stability and avoidance of temperature fluctuation in incubator could decrease the occurrence of false-positive reaction in detection process. The reaction flasks with positive results at initial culture should be recultured, and whether existence of a sharply ascending logarilhimic growth phase in bacterial growth curve should be further detected, which are helpful to distinguish false-positive reactions from true positive, and thus increase the specificity of the BacT/ALERT system.
Automation, Laboratory
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Bacteria
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isolation & purification
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Bacteriological Techniques
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methods
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Blood
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microbiology
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Culture Media
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False Positive Reactions
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Humans
4.Effects of culture conditions on biomass and active components of suspension cells of Panax quinquefolium.
Juan WANG ; Wenyuan GAO ; Tao HUANG ; Yu CAO
China Journal of Chinese Materia Medica 2009;34(4):375-378
OBJECTIVETo study the effects of inoculum, various media, pH value of medium and illumination conditions on the growth of Panax quinquefolium suspension cells and the synthesis of ginsenosides Re, Rb1 and polysaccharides.
METHODThe suspension cells were obtained through tissue culture by manipulation of inoculum, various media, pH value, and illumination conditions. The contents of ginsenosides Re and Rb1 were determined by HPLC, while the contents of polysaccharide were determined by ultraviolet spectrophotometry.
RESULTThe growth rate of suspension cells was greatly increased when inoculum amount was 25 g x L(-1). The effect of media MS, SH and B5 on suspension cells was observed. MS medium was favorable for cells growth, while B5 medium was favorable for the synthesis of ginsenosides and polysaccharides. The polysaccharide content in three media were higher than that of the cultivations. The pH value showed little influence on the cells growth, medium pH 6.0 enhanced the synthesis of Re and polysaccharides. Illumination could significantly enhance secondary metabolite biosynthesis of suspension cells and promoted slightly in polysaccharide synthesis.
CONCLUSIONThe inoculum, various media, pH value of medium and illumination conditions have significant influences on suspension cells growth of P. quinquefolium, secondary metabolite and polysaccharides synthesis.
Biomass ; Cell Culture Techniques ; Clinical Laboratory Techniques ; Culture Media ; Ginsenosides ; metabolism ; Panax ; chemistry ; growth & development ; metabolism ; Polysaccharides ; metabolism ; Suspensions ; analysis ; chemistry
5.Impact of Implementation of an Automated Liquid Culture System on Diagnosis of Tuberculous Pleurisy.
Byung Hee LEE ; Seong Hoon YOON ; Hye Ju YEO ; Dong Wan KIM ; Seung Eun LEE ; Woo Hyun CHO ; Su Jin LEE ; Yun Seong KIM ; Doosoo JEON
Journal of Korean Medical Science 2015;30(7):871-875
This study was conducted to evaluate the impact of implementation of an automated liquid culture system on the diagnosis of tuberculous pleurisy in an HIV-uninfected patient population. We retrospectively compared the culture yield, time to positivity, and contamination rate of pleural effusion samples in the BACTEC Mycobacteria Growth Indicator Tube 960 (MGIT) and Ogawa media among patients with tuberculous pleurisy. Out of 104 effusion samples, 43 (41.3%) were culture positive on either the MGIT or the Ogawa media. The culture yield of MGIT was higher (40.4%, 42/104) than that of Ogawa media (18.3%, 19/104) (P<0.001). One of the samples was positive only on the Ogawa medium. The median time to positivity was faster in the MGIT (18 days, range 8-32 days) than in the Ogawa media (37 days, range 20-59 days) (P<0.001). No contamination or growth of nontuberculous mycobacterium was observed on either of the culture media. In conclusion, the automated liquid culture system could provide approximately twice as high yields and fast results in effusion culture, compared to solid media. Supplemental solid media may have a limited impact on maximizing sensitivity in effusion culture; however, further studies are required.
Adolescent
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Adult
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Aged
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Aged, 80 and over
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Automation, Laboratory/*methods
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Cell Culture Techniques
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Culture Media/*classification
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Female
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Humans
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Male
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Middle Aged
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Mycobacterium tuberculosis
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Pleura/microbiology/pathology
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Retrospective Studies
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Sputum/*microbiology
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Tuberculosis, Pleural/*diagnosis
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Young Adult