2.Chemical constituents from Morus notabilis and their cytotoxic effect.
Pan ZHEN ; Gang NI ; Xiao-guang CHEN ; Ruo-yun CHEN ; Han-ze YANG ; De-quan YU
Acta Pharmaceutica Sinica 2015;50(5):579-582
Une new flavonoids named as notabilisin K (1), together with four known compounds, morusin (2), mulberrofuran A (3), neocyclomorusin (4) and mornigrol F (5) are separated from 95% ethanol extracts of the twigs of Morus notabilis. Compounds 2-5 are separated from this plant for the first time. Notabilisin I, notabilisin J exhibits certain effect against cells of HCT-116, HepG2 and A2780 with IC50 values ranging from 1.47 μmol x L(-1) to 5.46 μmol x L(-1). Morusin exhibits strong effect against five kinds of human cancer cells (BGC823, A2780, HCT-116, HepG2 and NCI-H1650) with IC50 values ranging from 0.74 μmol x L(-1) to 1.58 μmol x L(-1).
Antineoplastic Agents, Phytogenic
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chemistry
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Benzofurans
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chemistry
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Flavonoids
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chemistry
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Hep G2 Cells
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Humans
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Inhibitory Concentration 50
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Morus
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chemistry
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Plant Extracts
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chemistry
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Terpenes
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chemistry
3.Study on resource and varieties of Guoshangye.
Xian-You QU ; Shong-Yun QIN ; De-Quan YANG ; Quan-Sen LI ; Fang-Sheng PENG
China Journal of Chinese Materia Medica 2006;31(2):110-114
OBJECTIVETo investigate the varieties, resoures and identification authentication of Guoshangye used in Tuja and Miao's folk.
METHODThrough field investigations and comparing the collected specimens and literatures, the classification and identification of the species were studied.
RESULT AND CONCLUSIONOrigin of Guoshangye plant was from Pholidota yunnanensis, Bulbophyllum andersonii, B. odoratissimum, B. kamgtimgemse, ect. their morphological characters were identified. Due to limited resource of Guoshangye, the development and protection should be paid more attention.
Analgesics ; pharmacology ; Animals ; Antitussive Agents ; pharmacology ; Conservation of Natural Resources ; Drugs, Chinese Herbal ; isolation & purification ; pharmacology ; History, 19th Century ; History, Medieval ; Humans ; Orchidaceae ; anatomy & histology ; chemistry ; classification ; Pharmacognosy ; history ; Plant Roots ; anatomy & histology ; chemistry ; Plants, Medicinal ; anatomy & histology ; chemistry ; classification
4.Recognition of Similarities and Differences--a New Thinking Paradigm of Critically Care Integrative Medicine.
Quan-fu CHEN ; Rong-yuan YANG ; Shuai MAO ; Zhong-de ZHANG ; Li-heng GUO ; Min-zhou ZHANG
Chinese Journal of Integrated Traditional and Western Medicine 2015;35(11):1381-1383
"Wise men could recognize similarities, but the fool only recognizes differences" in Su-wen, which expounded clinical thinking methods of Chinese medicine (CM). "To recognize similarities and differences simultaneously" is of important clinical significance in understanding the laws of diseases. CM pays much attention to recognize similarities, while modern medicine emphasizes the differences observed. In order to develop integrative medicine (IM), similarities recognition and differences identification must be combined together to innovate new thinking methods of IM.
Humans
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Integrative Medicine
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standards
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Medicine, Chinese Traditional
5.Surgical treatment of tumors in anterior and middle skull base by modified maxillary bone disassembly procedures.
Qing-Feng ZHANG ; De-Long LIU ; Zhan-Quan YANG
Chinese Journal of Otorhinolaryngology Head and Neck Surgery 2006;41(11):840-842
OBJECTIVETo explore the therapeutic effect of the modified maxillary bone disassembly procedures on patients with tumors in the anterior and middle skull base.
METHODSRetrospective analysis was made of patients treated with the modified maxillary bone disassembly procedures. Ten tumors in the anterior and middle skull base were resected according to the pathology, size and site of the skull base tumors including 9 benign tumors and 1 malignant tumor.
RESULTSAll tumors were resected completely. All patients were followed up from 12 months to 5 years postoperatively. The complications were less and the life quality was increased. The patients with benign tumors showed no recurrence . Two patients with cerebrospinal rhinorrhea cured spontaneously after 7 days. One patient with melanoma died of brain metastase.
CONCLUSIONSIt is necessary to estimate the tumors thoroughly before surgery. According to the location of the tumor, the modified maxillary bone disassembly is the nearest and harmless approach, through which the tumors can be completely excised with minimal invasiveness. The life quality is thus increased.
Adolescent ; Adult ; Female ; Humans ; Male ; Maxilla ; surgery ; Middle Aged ; Retrospective Studies ; Skull Base Neoplasms ; surgery ; Surgery, Oral ; methods ; Treatment Outcome ; Young Adult
6.Effects and Safety of Hemoperfusion Therapy on Infants with Tetramine Poisoning
de-xuan, WANG ; rui-xia, LIN ; qing, YANG ; guo-quan, PAN ; chun-xue, YAN ; ling-wei, JIN
Journal of Applied Clinical Pediatrics 1992;0(06):-
Objective To explore the effects and safety of hemoperfusion(HP) therapy on tetramine poisoning in infants.Methods Thirty-five infants with tetramine poisoning were divided into two groups: HP group(n=18) and non HP group(n=17).The changes of blood tetramine concentration and clinical symptom improving of both groups after the treatment were observed together with the adverse effects of HP group.Results The average blood tetramine concentration of HP group was higher than that of non HP group(342.2?333.4 vs 117.9?50.8 ?g/L,P
7.Expression of MMP1 and TIMP1 in radiation-combined wound healing and their effects on the healing process and tissue remodeling
Qing-Yang, GU ; De-Wen, WANG ; Ya-Bing, GAO ; GUO-Wei, XIA ; Quan-Hong, QIN ; Rui-yun, PENG ; Yu-fang, CUI ; Hong, YANG
Bulletin of The Academy of Military Medical Sciences 2001;25(1):34-38
Objective:To study the expression of MMP1 and TIMP1 in simple and radiation-combined wound healing and their effects on the healing process and tissue remodeling. Methods: A rat model of radiation-combined wound healing was used. Immunohistochemistry and in situ hybridization were performed which enabled the detection of MMP1 and TIMP1 expression in the healing process. Ultrastructural changes were observed with transmission EM. Results: The wound healing process was impaired and delayed. In rats receiving 25 Gy of gamma ray locally the irradiated wounds healed 6 days later than non-irradiated controls. The following changes in MMP1 and TIMP1 expression were found: (1) In the early inflammatory phase and in the period of granulation tissue formation, MMP1 expression in the newly-formed epidermis of irradiated wounds approximated that in the controls. Later, the epidermal expression of MMP1 in radiation wounds was comparatively increased with the delay of the healing process.On days 3 to 14 after wounding, TIMP1 was weakly positive in the proliferating keratinocytes of control wounds and became negative after epidermal covering, whereas no or only slight epidermal expression was detected in radiation wounds before epidermal covering.(2)MMP1 and TIMP 1 expression in radiation wounds was markedlydecreased in fibroblasts , endotheliocytes and macrophages as compared with the controls. The expression phase was prolonged due to the delay of the healing process.Conclusions:The reduced expression of MMP1 and TIMP1 in granulation tissue retards such important processes as cell migration, angiogenesis and tissue remodeling, thus retarding the healing process. The expression of MMP1 in the newly-formed epidermis may help the process of reepithelialization,but in the late healing period, overexpression of MMP1 and decreased expression of TIMP1 in the epidermis may hinder the establishment of basal membrane and the formation of granulation tissue, and thus affect the matrix remodeling process.
8.High-risk human papillomavirus DNA testing and histologic follow up in women with abnormal cytology.
Cheng-quan ZHAO ; Huai-tao YANG ; De-bin XUE ; Min YANG
Chinese Journal of Pathology 2012;41(11):774-778
Adenocarcinoma
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genetics
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pathology
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virology
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Carcinoma in Situ
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genetics
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pathology
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virology
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Cervical Intraepithelial Neoplasia
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genetics
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pathology
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virology
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Cervix Uteri
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pathology
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virology
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Cytological Techniques
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DNA, Viral
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analysis
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Female
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Follow-Up Studies
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Humans
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Neoplasm Grading
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Papillomaviridae
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genetics
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isolation & purification
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Papillomavirus Infections
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diagnosis
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Uterine Cervical Neoplasms
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genetics
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pathology
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virology
9.Experimental study on the effect of Glycyrrhiza on small intestinal motility in rats.
Qing-Ying XUN ; Cun-Fen WANG ; Yi-Quan WEI ; De-Zhi YANG ; Guo-Xiang DOU
Chinese Journal of Applied Physiology 2004;20(4):389-392
AIMTo investigate the effects of glycyrrhiza decoction on migrating myoelectric complex (MMC) and gastrointestinal hormone in small intestine in rats.
METHODSWe observed MMC cycle,phase Ill duration,fast wave numbers of phase III of MMC in one minute, fast wave numbers of one cluster in phase III of MMC of small intestine of glycyrrhiza group and control group rats with electrophysiology method, and immunohistochemistry to examine relative content of serotonin (5-HT), substance p(SP) and vasoactive intestinal polypeptide (VIP) in small intestinal chromophil (EC) and myenteric nerve plexus in small intestine of control group and glycyrrhiza group rats.
RESULTSCompared glycyrrhiza group with control group,we found that glycyrrhiza was able to decrease fast wave numbers in one minute and fast wave numbers in one cluster in phase III of MMC of small intestine (P < 0.05), and evidently extend small intestinal cycle of MMC (P < 0.05), it also shortened the phase III III duration (P < 0.05) or made the phase III of MMC absent. Compared glycyrrhiza group with control group it was indicated that content of 5-HT in small intestinal mucous membrane and myenteric nerve plexus was evidently decreased (P < 0.05), and content of SP in myenteric nerve plexus of small intestine of rats was evidently decreased (P < 0.05), and content of VIP in small intestine of rats was evidently increased (P < 0.05).
CONCLUSIONGlycyrrhiza is able to inhibit small intestinal motility, this inhibition is related with the amount of 5-HT, SP, VIP secreted by small intestinal mucous membrane of rats.
Animals ; Drugs, Chinese Herbal ; pharmacology ; Electromyography ; Gastrointestinal Motility ; drug effects ; physiology ; Glycyrrhiza ; Intestine, Small ; drug effects ; physiology ; Rats ; Rats, Sprague-Dawley ; Serotonin ; analysis ; Substance P ; analysis ; Vasoactive Intestinal Peptide ; analysis
10.Boundary element analysis on characteristics of double bifurcation arterial hemodynamics
Journal of Medical Biomechanics 2010;25(4):E283-E287
Objective To judge the effect of hemodynamic characteristics on flow vessel of double bifurcation collateral by numerical calculation. Method A kind of double bifurcation collateral flow vessel’s hemodynamic characteristics such as blood flowing velocity vector, the shear stress and pressure at the vessel wall were calculated, studied and compared by the boundary element method. The lesions caused and developed by hemodynamic reasons were logically explained. Whether the hemodynamic characteristics of the branch would be affected by the lesion in the primary branch vessel was judged based on calculation results of the shear stress and the pressure at the branch vessel wall before and after the lesions. Results In the primary branch vessel, the blood velocity and shear stress increased obviously if the lesion appeared to narrow the vessel. Although the blood velocity and the shear stress in the branch vessel were not affected by the lesion, but its blood pressure became high. Conclusions The blood hydrokinetic characteristics play an important role in the cause and development of cardiovascular diseases. The atherosclerosis could be caused in the branch vessel of double bifurcation arterialvessel as the lesion becomes more serious in its primary branch vessel.