3. Luminol-potassium permanganate chemiluminescence system for the determination of three anthracycline antibiotics
Academic Journal of Xi'an Jiaotong University 2010;22(1):20-24
Objective: To establish a flow-injection chemiluminescence method for the determination of doxorubicin, epirubicin and mitoxantrone and study its reaction mechanism. Methods: In alkaline medium, chemiluminescence of luminol-potassium permanganate system could be inhibited obviously by anthracycline antibiotics. Combined with flow-injection technique, a new chemiluminescence method for determining the anthracycline antibiotics was set up. The chemiluminescence mechanism of the luminol-potassium permanganate system was also discussed. Results: Under optimal conditions, the good linear ranges of doxorubicin, epirubicin and mitoxantrone were 5.0×10-9-1.0×10 -6 g/mL, 1.0×10-9-1.0×10-5 g/mL and 3×10-9-1.0×10-6 g/mL, respectively. The detection limits of doxorubicin, epirubicin and mitoxantrone were 3.0×10-9 g/mL, 5.0×10-6 g/mL and 2.0×10-9 g/mL, respectively. During eleven repeated inter-day and intra-day precision tests of 1.0×10-6 g/mL samples, the relative standard deviations corresponded to reference values of 3.0% ,2.8% and 2.1%. Conclusion: The developed method is sensitive, accurate, rapid and of low cost. It can be applied to determine doxorubicin hydrochloride, epirubicin hydrochloride and mitoxantrone hydrochloride in injection preparations.
4. Luminol-potassium permanganate chemiluminescence system for the determination of three anthracycline antibiotics
Academic Journal of Xi'an Jiaotong University 2010;22(1):20-24
Objective: To establish a flow-injection chemiluminescence method for the determination of doxorubicin, epirubicin and mitoxantrone and study its reaction mechanism. Methods: In alkaline medium, chemiluminescence of luminol-potassium permanganate system could be inhibited obviously by anthracycline antibiotics. Combined with flow-injection technique, a new chemiluminescence method for determining the anthracycline antibiotics was set up. The chemiluminescence mechanism of the luminol-potassium permanganate system was also discussed. Results: Under optimal conditions, the good linear ranges of doxorubicin, epirubicin and mitoxantrone were 5.0×10-9-1.0×10 -6 g/mL, 1.0×10-9-1.0×10-5 g/mL and 3×10-9-1.0×10-6 g/mL, respectively. The detection limits of doxorubicin, epirubicin and mitoxantrone were 3.0×10-9 g/mL, 5.0×10-6 g/mL and 2.0×10-9 g/mL, respectively. During eleven repeated inter-day and intra-day precision tests of 1.0×10-6 g/mL samples, the relative standard deviations corresponded to reference values of 3.0% ,2.8% and 2.1%. Conclusion: The developed method is sensitive, accurate, rapid and of low cost. It can be applied to determine doxorubicin hydrochloride, epirubicin hydrochloride and mitoxantrone hydrochloride in injection preparations.
5.A case report of asphyxia which caused by retropharyngeal parapharyngeal and mediastinal abscess.
Yu-hong QIN ; Ling HONG ; Li-jie ZHAI
Chinese Journal of Otorhinolaryngology Head and Neck Surgery 2007;42(4):305-306
Asphyxia
;
etiology
;
therapy
;
Humans
;
Male
;
Middle Aged
;
Retropharyngeal Abscess
;
complications
;
therapy
;
Subphrenic Abscess
;
complications
;
therapy
;
Treatment Outcome
7.Effect of acetamide on cardiac troponin I of rats with tetramine poisoning.
Yu-Jun MENG ; Jian-Ling SU ; Hong-Shun ZHANG
Chinese Journal of Industrial Hygiene and Occupational Diseases 2008;26(11):668-669
Acetamides
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pharmacology
;
Animals
;
Bridged-Ring Compounds
;
poisoning
;
Disease Models, Animal
;
Female
;
Male
;
Rats
;
Rats, Sprague-Dawley
;
Troponin I
;
blood
8.The relationship between apoptosis and neurological impairment in experimental intracerebral hemorrhage in rats
Hong-Ling LI ; Qing-Rong ZHAO ; Yu-Miao ZHANG ;
Chinese Journal of Physical Medicine and Rehabilitation 2003;0(06):-
Objective To investigate the relationship between the apoptosis,expressions of Bcl-2 and Bax protein in perihematomal brain regions of rats and neurologic dysfunctions after intracerebral hemorrhage (ICH). Methods Seventy Sprague-Dawley rats were divided randomly into two groups:an experimental group and a control group.A model of ICH was established by injection of 0.5 U bacterial collagenaseⅦinto the caudate nucleus in the rats.Neurological impairment was evaluated at 6 h,12 h,24 h,48 h,72 h,7 d and 14 d after 1CH,respectively, before the rats were sacrificed.TUNEL method was used to detect apoptosis,and SP method to detect expressions of Bcl-2 and Bax protein in the perihematomal brain tissues.Results Neurological impairment occurred in all the rats after ICH,and peaked at 48 h after ICH.The apoptosis and expressions of Bcl-2 and Bax protein were peaked at 48 h,6 h and 48 h after ICH,respectively.Conclusion The degree of the neurological impairment after ICH is parallel to that of the apoptosis.Apoptosis may play an important role in neurological impairment after ICH.
9.The significance of cost accounting in military hospital department
Ling YU ; Shuang-Ying YANG ; Wei-Hong ZHANG ;
Journal of Medical Postgraduates 2003;0(11):-
Currently, competition in the market of health service of our country is very fierce. In this circumstance, realization of military hospital's development aim-focuse on people, leading position in technology-to provide better service armyman is depend on economic foundation. To increase economic benefit of hospital, it is necessary to intensify management of cost accounting first, in which cost accounting of clinical department is of especial importance. In this article, we probe into the significance, content, method and problems of cost accounting in clinical department of military hospital.
10.Thirty-Eight Children with Langerhans Cell Histiocytosis
hong, YU ; ying, CHENG ; bo, LING ; zhi-rong, YAO
Journal of Applied Clinical Pediatrics 1993;0(03):-
Objective To explore the clinical and pathologic features of Langerhans cell histiocytosis(LCH).Method Thirty-eight cases of LCH from both in hospital and outpatient department in dermatology and pediatry department from Jan.1991 to Jun.2006 were analyzed about the features of clinic,pathology and immunohistochemistry.Results The mean age of onset was 2.18 years old.The male /female ratio was 1.71.Skin lesions occurred in 78.9% of the patients.Among them,68.5% were as the first manifestation.The eruptions mainly distributed on trunk,90% of them presented as hemorrhagic maculopapules,nevertheless,3.3% of the eruptions showed as crust with hilar depression,which was similar to pityriasis lichenoides etvarioliformis acuta.Fever,hepatomegalia and splenomegia occurred in patients at a rate of 60.5%,68.4%,55.3% respectively.Thirty-one point six percent of the patients had got lymphadenectasis,the neck and inguinal lymph nodes were the common site to be affected.Ossature involvement occurred in 31.6% of the patients,which 8.3% got multiple injuries,howe-ver,91.7% got a solitary bone involved.Skull was the main site to be injured,else were lumbar,humerus,hipbone,an so on.Respiratory tract,auditory canal,mucosa were also the sites involved in this disease,but the incidence rate was lower than 10%,respectively.The laboratory data showed that 81.3% of the patients were anaemia,60.7% with abnormal subgroup of T-cell,and 32.1% positive for EBV-IgG.The skin histopathology data of 26/30 cases revealed that lichenoid infiltrates of Langerhans cells confined to the upper dermis.Cytologic features were cells with abundant eosinophilic cytoplasms,and longitudinally grooved or reniform nuclei.Lymphocytes and a few eosinophils also could be seen.Four cases of thirty showed that the proliferative Langerhans cells were with pale cytoplasms,besides,there were numerous eosinophils,and sometimes a few multinucleate cells were scattered.The immunity test of 20 cases of thirty displayed that CD1a(+)S100(+)KP-1(-).Biopsy of lymphaden and tumor of the skull of the rest 8 patients were all diagnosed as eosinophilic granuloma through both hematoxylin and eosin-stained section and immune marks.Conclusions Multiple systems can be involved in LCH.Hemorrhagic maculopapules,fever and splenohepatomegalia are common presentations in this disease.The morphous of nucles of histiocytes is particular,and to diagnose definitely,both CD1a(+) and S-100(+) are needed.