1.X-ray analysis of lung damage caused by PCl3 inhalation.
Chinese Journal of Industrial Hygiene and Occupational Diseases 2005;23(4):308-309
Adult
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Chlorides
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toxicity
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Female
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Humans
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Inhalation Exposure
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Lung
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diagnostic imaging
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Lung Injury
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diagnostic imaging
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Male
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Middle Aged
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Phosphorus Compounds
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toxicity
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Radiography
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Young Adult
3.Clinical observation of phacoemulsification and intraocular lens implantation combined with trabeculectomy in cataract and glaucoma patients
International Eye Science 2016;16(11):2148-2149
AIM: To evaluate the clinical effects of dual-incision phacoemulsification and intraocular lens implantation combined with trabeculectomy in cataract and glaucoma patients.
METHODS: To observe the visual acuity, intraocular pressure and complications for 3-12mo after surgery as a retrospective study of 65 patients ( 70 eyes ) with cataract and glaucoma.
RESULTS: The visual acuity of 2 eyes was lower than 0.1, 6 eyes were ranged from 0. 1 to 0. 3, 60 eyes were from 0. 4 to 0. 8, 2 eyes were over 1. 0. The postoperative intraocular pressure of 26 eyes were effective controlled. The postoperative shallow anterior chamber occurred in 1 eye.
CONCLUSION: It is an ideal treatment to take dual-incision phacoemulsification and intraocular lens implantation combined with trabeculectomy in cataract and glaucoma patients and it shows better effects than normal operation method.
4.A review on research progress of transketolase.
Neuroscience Bulletin 2009;25(2):94-99
Transketolase (TK), a thiamine diphosphate (ThDP)-dependent enzyme, catalyzes several key reactions of non-oxidative branch of pentose phosphate pathway. TK is a homodimer with two active sites that locate at the interface between the contacting monomers. Both ThDP and bivalent cations are strictly needed for TK activation, just like that for all ThDP-dependent enzymes. TK exists in all organisms that have been investigated. Up to now, one TK gene (TKT) and two transketolase-like genes (TKTL1 and TKTL2) have been identified in human genome. TKTL1 is reported to play a pivotal role in carcinogenesis and may have important implications in the nutrition and future treatment of patients with cancer. Researchers have found TK variants and reduced activities of TK enzyme in patients with neurodegenerative diseases, diabetes, and cancer. Recent studies indicated TK as a novel role in the prevention and therapy of these diseases.
Animals
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Humans
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Models, Molecular
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Neurodegenerative Diseases
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enzymology
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Research
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trends
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Transketolase
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chemistry
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genetics
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metabolism
5.Progress in study of flavonoids from Annonaceae and biological activities of these compounds.
China Journal of Chinese Materia Medica 2007;32(9):765-770
More than 50 new flavonoids derived from Annonaceae are reported in the last two decades. Many genuses in Annonaceae contain flavonoids having structural novelty and broad pharmacological activities. Due to the pharmacological interest of some of these compounds, chemical investigations on this topic have grown considerably in the decades. Here the biological activities of some of these flavonoids are also briefly discussed.
Annonaceae
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chemistry
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classification
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Antineoplastic Agents, Phytogenic
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chemistry
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isolation & purification
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pharmacology
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Cell Line, Tumor
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Cell Survival
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drug effects
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Flavonoids
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chemistry
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isolation & purification
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pharmacology
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Humans
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Inhibitory Concentration 50
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Molecular Structure
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Plants, Medicinal
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chemistry
6.Effect of arsenic trioxide on apoptosis and mitochondrial transmembrane potential of Marek disease cancer cells
Jiu-li, ZHANG ; Chun-hong, ZHANG ; Shu-hua, YANG ; Shi-wen, XU
Chinese Journal of Endemiology 2008;27(4):385-388
Objective To investigate the mechanism of apoptosis induced by arsenic trioxide(As2O3) on MDCC-MSB1 cancer cell line in vitro. Methods MDCC-MSB1 cells were divided into 4 groups, treated with 0 (control group), 2, 4 or 8 μmoL/L of As2O3. At 48 h following the treatment, MTr assay was applied to detect the inhibitory effect of As2O3 on MDCC-MSB1. Morphological changes of apoptosis were observed by fluorescence microscopy. Apoptosis was examined by DNA Ladder. Changes of mitochondrial transmembrane potential were examined by Rhodamin 123 dye and flow cytometry. Results Inhibition ratio was 0, (5.34±3.02)%, (10.78± 0.55)% and (20.02±3.24)% respectively, along with the dosages of As2O3, the differences between the groups were statistically significant(P<0.01). Morphologic changes of apoptosis were observed by DNA ladder of agarose gel electrophoresis. Apoptosis rates were significandy increased from 3.200±0.459, 11.543±0.391, 17.206±0.636 to 21.343±0.620, and the differences between the groups were statistically significant(P<0.01). DNA ladder of experimental group was detected, Intact cell membrane, and mitochondrial transmembrane potential Pl-/Rh123- decreased apoptotic cells percentage was significantly increased from (1.06±0.14)%, (4.63±0.04)%, (9.62±0.07)% to (10.39±0.10)%, respective to doses of 0, 2,4, and 8 μmol of As2O3. The differences between the groups were statistically significant(P<0.01). Conclusions As2O3 can induce apoptosis in MDCC-MSB1 cells by decreasing the mitochondrial transmembrane potential.
7.Decreased hippocampal neurogenesis is involved in cognitive dysfunction induced by thiamine deficiency
Na ZHAO ; Chun-Jiu ZHONG ; Yang WANG ; Yan-Ling ZHAO ; Guo-Min ZHOU ; Zhen HONG ;
Chinese Journal of Neurology 2000;0(05):-
Objective To investigate the influence of thiamine deficiency(TD)at early pre- pathological lesion stage on cognitive function and the correlation between cognitive dysfunction and hippocampal neurogenesis.Methods TD mouse model was prepared by feeding a thiamine-depleted diet. Learning and memory functions of TD mice were tested with Y-maze.Hippoeampal neurogenesis was studied with bromodeoxyuridine(BrdU),proliferative cell nuclear antigen(PCNA),and Doublecortin(Dcx) immunohistochemical staining on the 7th(TD7),9th,14th and TD25th day.Results TD9 mice without pathological impairment and cholinergic nerve degeneration needed more times of training(22.3?2.2)in the learning test of Y maze compared with the controls(13.5?3.5).Correspondingly,the numbers of BrdU-positive ceils and the immunoreactivity of Dcx decreased significantly in the TD9 mice(19.8?0.4, 1537.2?50.2 vs 23.9?0.3,2688.9?127.9 pixels/mm~2).Thiamine re-administration reversed the declined hippocampal neurogenesis:the number of BrdU-positive cells was 23.6?1.9 and Dcx immunoreactivity was 2052.3?269.6 pixels/mm~2:the impaired learning ability was simultaneously restored,with the number of total training trial being 16.8?0.5.Conclusion The decreased hippocampal neurogenesis contributes to retarded learning ability at early pre-pathological lesion stage of TD.
8.Etiology of acute upper respiratory tract obstruction in infants: analysis of 12 cases.
Chinese Journal of Contemporary Pediatrics 2009;11(2):116-119
OBJECTIVETo study the etiology of acute upper respiratory tract obstruction in infants.
METHODSThe medical data of 12 infants with acute upper respiratory tract obstruction were retrospectively reviewed. The patients received the examinations of laryngoscopy and CT scans for larynx and lungs.
RESULTSAll of the 12 infants presented with laryngeal stridor. Eight infants (67%) were diagnosed as congenital simple laryngeal stridor before admission. Based on the clinical features, laboratory examinations, imaging examinations and laryngoscopy, 4 (33%) were definitely diagnosed with thyroglossal ductal cyst, 1(8%) with abscess-emphysema in the posterior wall of pharynx, 1(8%) with cervicallymphangioma, 2 (16%) with subglottic stenosis, and 4 (33%) with acute laryngitis.
CONCLUSIONSAcute upper respiratory tract obstruction is easily misdiagnosed in infants. Thyroglossal duct cyst is a common cause of upper respiratory tract obstruction/laryngeal stridor. It is recommend that laryngoscopy and CT scans for larynx should be performed in infants with laryngeal stridor.
Acute Disease ; Female ; Humans ; Infant ; Laryngoscopy ; Laryngostenosis ; congenital ; diagnosis ; etiology ; Male ; Radiography, Thoracic ; Retrospective Studies ; Tomography, X-Ray Computed
9.Treatment of atrophic rhinitis by transplantation of pediculated bone-suberiosteal muscle flap
Yong-Gan WANG ; Qian-Mei SHI ; Yan-Hong WANG ; Chun-Jiu HU ; Zhong-Ming LIN ; Tao GUO ; Rong-Sheng NI ;
Chinese Journal of Primary Medicine and Pharmacy 2006;0(10):-
Objective To explore a better method for treatment atrophic rhinitis.Methods 56 patients with atrophic rhinitis(96 lateral)were treated by nasal submucou pediculated bone-suberiosteal muscle flap extracted from anterior wall of sinus maxillaries.Results All patients were followed 2 to 10 years,total effective rate was 100 %, with 49 cases(87.5 %)showing prominent effect.Conclusion The grafted flap cannot be assimilated,felled off and necrosis,because the flap has rich blood supply.This methods has obvious short-term effective and stable long-term effective.No complications were found.
10.Relationship between fever degree and prognosis in children with bacterial bloodstream infection.
Tao ZHANG ; Jiu-Jun LI ; Chun-Feng LIU ; Zhi-Jie ZHANG
Chinese Journal of Contemporary Pediatrics 2017;19(5):560-563
OBJECTIVETo study the relationship between the degree of fever within 48 hours of admission and the prognosis in children with bacterial bloodstream infection.
METHODSThis study retrospectively analyzed the clinical data of all patients diagnosed with sepsis who were admitted to the pediatric intensive care unit (PICU) of Shengjing Hospital Affiliated to China Medical University between September 2008 and September 2016. The children with bacterial bloodstream infection were classified into 5 groups according to the maximum temperature within 48 hours of admission: <36.5°C group, ≥36.5°C group (normal control), ≥37.5°C group, ≥38.5°C group, and ≥39.5°C group. The mortality was compared between the five groups. Results A total of 213 children with bacterial bloodstream infection were enrolled, consisting of 5 cases in the <36.5°C group, 44 cases in the ≥36.5°C group, 73 cases in the ≥37.5°C group, 69 cases in the ≥38.5°C group, and 22 cases in the ≥39.5°C group. A total of 48 cases died among the 213 patients. A significant difference was observed in the mortality between the five groups (P<0.01). The <36.5°C group and ≥39.5°C group had significantly higher mortality than the normal control group. However, there were no significant differences in the mortality between the ≥37.5°C and ≥38.5°C groups and the normal control group. Conclusions In children with bacterial bloodstream infection, those with a maximum temperature below 36.5°C or above 39.5°C within 48 hours of admission have a significantly increased mortality.
Bacteremia ; mortality ; Child, Preschool ; Female ; Fever ; complications ; Humans ; Infant ; Intensive Care Units, Pediatric ; Male ; Prognosis ; Retrospective Studies