2.STUDDZS OF SCREENING MICROORGANISMS DEGRADING LINEAR SODIUM ALKYLBENZENESULFONATE (LAS) AND ITS DEGRADINGCHARACTERISTICS
Qi-Feng YING ; Chang-Song XIAO ; Shu-Lan JI ;
Microbiology 1992;0(01):-
A bacterium which can effectively degrade LAS (Linear Sodium Alkylbenzenesulfonate) was isolated from washing powder manufacturing effluent and was preliminarily identified as Corynebacterium jeikeium GZ6. The bacterium can degrade LAS up to till 700 mg/L, and the optimum pH, temperature and concentration of LAS are 7.0, 30℃ and 400 mg/L, respectively. The biodegradation rate can reach 98.7% after 24 hours'cultivation in the suitable conditions. Experiments also showed that some heavy metal ions such as Hg2+ , Co2+ , Cd2+ can differently inhibit the degradation of LAS.
3.Clinical observation of treatment of infantile diarrhea due to spleen deficiency using five-step pediatric tuina of Huxiang school
Yu-Lan TANG ; Mai-Lan LIU ; Qian-Yun YANG ; Jie YU ; Zeng-Hui YUE ; Xiao-Rong CHANG
Journal of Acupuncture and Tuina Science 2019;17(5):328-335
Objective:To observe the clinical efficacy of treating infantile diarrhea due to spleen deficiency with five-step pediatric tuina of Huxiang school. Methods:Using a randomized controlled trial design, sixty eligible kids with diarrhea due to spleen deficiency were randomized into an observation group and a control group, with 30 cases in each group. The observation group was intervened by the five-step pediatric tuina method of Huxiang school, and the control group received conventional tuina treatment. The intervention was conducted once a day, consecutive 5-day treatment as 1 course, at a 2-day interval between courses, successively for a total of 4 courses. Changes in the primary and secondary symptoms of diarrhea due to spleen deficiency were observed, and the clinical efficacy was evaluated. Results: After treatment, the scores of primary and secondary symptoms and the general score of diarrhea due to spleen deficiency were improved; the improvements in fecal form and frequency, decreased appetite, bloating after meals and fatigue and sluggishness were more significant in the observation group than in the control group. Conclusion: The five-step pediatric tuina method of Huxiang school and conventional tuina both can improve the primary and secondary symptoms in infantile diarrhea due to spleen deficiency, while the former one can produce more significant efficacy.
4.Effect of the cryopreserved Schwann cells on the peripheral nerve regeneration.
Guang-You FENG ; Xiao-Lan CHANG
Chinese Journal of Applied Physiology 2003;19(1):82-84
AIMTo compare the effects of primary culture Schwann cells and cryopreserved Schwann cells on the injured peripheral nerve regeneration.
METHODSThe primary culture Schwann cells and cryopreserved Schwann cells were transplanted into the silicone tubes that bridged the resected sciatic nerves. At different time after transplantation, HRP was injected into the sciatic nerve trunks at the distal end of the silicone tubes, and then the HRP labeled neurons in dorsal root ganglions and anterior horns of spinal cord were counted. The complex action potential of regenerated nerve fibers was measured. Myelination on regenerated nerve fibers was investigated under electronic microscope.
RESULTSAt different time after transplantation, there were not significant differences that the HRP labeled neurons in dorsal root ganglions and anterior horns of spinal cord, the complex action potential of regenerated nerve fibers and myelination on regenerated nerve fibers (P > 0.05), between primary culture and cryopreserved Schwann cells.
CONCLUSIONThe cryopreserved Schwann cells still play the same important role in the regeneration of injured peripheral nerves as the primary culture Schwann cells do.
Action Potentials ; Animals ; Cells, Cultured ; Cryopreservation ; Nerve Regeneration ; physiology ; Peripheral Nerves ; physiology ; Primary Cell Culture ; Rats ; Rats, Sprague-Dawley ; Schwann Cells ; cytology ; physiology
5.Exploration and practice of research-based teaching in the course of theory of Meridians and Acupoints for acupuncture and tuina specialty.
Mai-Lan LIU ; Yi-Qin YUAN ; Xiao-Rong CHANG ; Jian LUO ; Mi LIU
Chinese Acupuncture & Moxibustion 2014;34(8):821-824
For the purpose of exploring the teaching reform model and method, also promoting the quality of talents in acupuncture and tuina field, the research-based teaching model is applied into the course of Theory of Meridians and Acupoints. This method includes two parts of teaching and learning. For teachers, they bring modern research focus and trend into teaching through questionnaire survey among students, aiming to integrate the education inside and outside class. For students, they are guided to resolve the opening, enlightening and scalable issues through consulting abundant resources of literature and database to achieve autonomous participation in the course of learning. By this teaching method, it is expected to train the student's ability of expanding their thinking, as well as discovering, analyzing and solving the problem.
Acupuncture
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education
;
methods
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Acupuncture Points
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Acupuncture Therapy
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methods
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psychology
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Humans
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Learning
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Meridians
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Musculoskeletal Manipulations
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education
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methods
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psychology
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Students, Medical
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psychology
6.Effects of α3 neuronal nicotinic acetylcholine receptor on cell apoptosis and p38 MAPK signal transduction pathway in SH-SY5Y cells.
Xue-ling ZHANG ; Xiao-lan QI ; Jia-mou REN ; Chang-xue WU ; Zhi-zhong GUAN
Chinese Journal of Pathology 2013;42(2):116-120
OBJECTIVETo investigate the effects of α3 neuronal nicotinic acetylcholine receptor (nAChR) on apoptosis and p38 signal transduction pathway in SH-SY5Y cells and to assess the roles of α3 nAChR in the pathogenesis of Alzheimer's disease (AD).
METHODSThe levels of α3 nAChR mRNA and protein were measured by real-time PCR and Western blot, respectively, in SH-SY5Y cells transfected with α3 nAChR siRNA. The mRNA level of bcl-2 and bax was measured by the real-time PCR. The siRNA transfected SH-SY5Y cells and control were then treated with 10 µmol/L Aβ25-35 for another 48 h, and the change in apoptotic rate and the levels of p-p38 and p38 were measured by flow cytometry and Western blot. Subsequently these SH-SY5Y cells were exposed to a blocker of p38 protein, and the apoptotic rate was measured again.
RESULTSCompared to the controls, the expression of α3 nAChR at mRNA and protein levels in the SH-SY5Y cells transfected with α3 nAChR siRNA decreased by 95% and 86%, respectively; the mRNA levels of bax increased 2.11 times and that for bcl-2 decreased 0.53 times. The apoptotic rate was unaffected (3.40% ± 0.20%); but it increased after Aβ25-35 treatment (24.52% ± 1.59%); the level of p-p38 protein also increased by 178% in the α3 nAChR inhibited cells treated with Aβ25-35. Compared to controls, the Aβ25-35-treated SH-SY5Y cells and the Aβ25-35-treated and siRNA-transfected cells both showed a reduction in apoptosis after treatment with p38 blocker, especially in the former.
CONCLUSIONThe siRNA silencing of α3 nAChR mRNA may enhance the effect of Aβ25-35 on the cell apoptosis by increasing the levels of p38 protein and bax mRNA and decreasing the level of bcl-2 mRNA, which may play a role in the pathogenesis of AD.
Alzheimer Disease ; etiology ; Amyloid beta-Peptides ; metabolism ; Apoptosis ; Cell Line, Tumor ; Gene Silencing ; Humans ; Neuroblastoma ; metabolism ; pathology ; Peptide Fragments ; metabolism ; Proto-Oncogene Proteins c-bcl-2 ; genetics ; metabolism ; RNA, Messenger ; metabolism ; RNA, Small Interfering ; genetics ; Receptors, Nicotinic ; genetics ; metabolism ; Signal Transduction ; Transfection ; bcl-2-Associated X Protein ; genetics ; metabolism ; p38 Mitogen-Activated Protein Kinases ; metabolism
7.Shen warming Pi strengthening method intervened IBS-D rats: an efficacy assessment.
Xiao-Lan SU ; Yan-Ping TANG ; Jing ZHANG ; Yi-Bing BAI ; Hai-Xia SHI ; Yan-Jun LIU ; Yu-Juan CHANG
Chinese Journal of Integrated Traditional and Western Medicine 2014;34(2):197-202
OBJECTIVEIBS-D rat model was established to assess the effect of Shen warming Pi strengthening method (SWPSM) for intervening diarrhea-predominant irritable bowel syndrome (IBS-D) by observing rats' general state, stool properties, AWR ranking, and histopathological changes.
METHODSTotally 72 rats were randomly divided into 6 groups, i.e. the normal group, the model group, the high, middle, low dose SWPSM groups, and the control group, 12 in each group. The IBS-D rat model was successfully established referring to AL-Chaer ED's modeling method. After modeling high, middle, and low dose SWPS Recipe boil-free granules were given by gastrogavage to rats in corresponding treatment groups. Sishen Pill boil-free granule was given by gastrogavage to those in the control group. Equal volume of normal saline was given by gastrogavage to rats in the model group. The medication lasted for 2 weeks. Rats' general state, stool properties, abdominal withdrawal reflex (AWR) ranking, and histopathological changes were observed.
RESULTSAfter treatment, the general state of all rats got im- provement to various degrees. The improvement in the high and middle dose SWPS Recipe groups were superior to that in the low dose SWPS Recipe group and the control group (P < 0.05). There was no statistical difference in the growth rate between after and before treatment in each group (P > 0.05). Compared with the model group and the low dose SWPS Recipe group, the defecation amount within 4 h was less in the high and middle dose SWPS Recipe groups and the control group (P < 0.05). The Bristol ranking score, average ranking of loose stool, ratio of dry stool and wet stool were lower in the high and middle dose SWPS Recipe groups than in the control group and the low dose SWPS Recipe group (P < 0.05). The AWR ranking score was lower in the high and middle dose SWPS Recipe groups than in the control group when the volume of balloon dilation was 1.5 mL. There was no organic change of histological or morphological observation.
CONCLUSIONSHigh sensitive IBS-D model was proved to be reliable. SWPSM could reduce the quantity of stools, lower Bristol ranking score, average ranking of loose stools as well as ratios of dry stool and wet stool, contributing to reducing the high sensitivity of rats' visceral organs to some extent.
Animals ; Diarrhea ; drug therapy ; Disease Models, Animal ; Drugs, Chinese Herbal ; therapeutic use ; Irritable Bowel Syndrome ; drug therapy ; Male ; Phytotherapy ; Rats ; Rats, Sprague-Dawley
8.Current biomarkers for the detection of endometriosis.
Zhao TIAN ; Xiao-Hong CHANG ; Yan ZHAO ; Hong-Lan ZHU
Chinese Medical Journal 2020;133(19):2346-2352
A clinically reliable non-invasive test for endometriosis is expected to reduce the diagnostic delay. Although varieties of biomarkers have been investigated for decades, and cancer antigen-125, cancer antigen-199, interleukin-6, and urocortin were the most studied ones among hundreds of biomarkers, no clinically reliable biomarkers have been confirmed so far. Some emerging technologies including "omics" technologies, molecular imaging techniques, and microRNAs are promising in solving these challenges, but their utility to detect endometriosis has yet to be verified. New combinations of researched indicators or other non-invasive methods and further exploration of the emerging technologies may be new targets and future research hotspots for non-invasive diagnosis of endometriosis. In conclusion, researches of biomarkers for the detection of endometriosis are still ongoing and may benefit from novel molecular biology, bioinformatics methods and a combination of more diverse monitoring methods. Though it will be a daunting task, the identification of a specific set of diagnostic biomarkers will undoubtedly improve the status of endometriosis.
9.Regulatory effect of herbal cake-partitioned moxibustion on cholesterol reverse transport nuclear receptor LXRα in rabbits with atherosclerosis
Xia LIU ; Mai-Lan LIU ; Hou-Lian WANG ; An-Lin GUO ; Jun-Yun GE ; Xiao-Rong CHANG ; Jing SHEN
Journal of Acupuncture and Tuina Science 2019;17(1):1-8
Objective:To observe the effect of herbal cake-partitioned moxibustion on liver X receptor alpha (LXRα) in rabbits with atherosclerosis.Methods:Thirty-six male New Zealand rabbits were randomly divided into a normal group,a model group,a herbal cake-partitioned moxibustion group and a simvastatin group according to the random number table method,with 9 rabbits in each group.Rabbits in the model group,the herbal cake-partitioned moxibustion group and the simvastatin group were modeled by high fat feeding method which took 12 weeks.After verification of the successful model,rabbits in the normal group were not treated,in the model group were bundled,in the herbal cake-partitioned moxibustion group were treated with herbal cake-partitioned moxibustion,and those in the simvastatin group were treated with simvastatin,all for a total of 4 weeks.At the end of the experiment,the aorta and liver were observed for pathological changes;serum and liver were used to detect lipid levels;Western blot (WB) and real-time quantitative polymerase chain reaction (RT-qPCR) were used to detect LXRα protein and mRNA expression levels,respectively.Results:Compared with the normal group,the structure of aorta was disordered,the wall was rough and thick,the intima was unsmooth,and the vascular smooth muscle cells were arranged closely and disorderly in the model group,which was consistent with the characteristics of the rabbit model of aortic atherosclerosis.Compared with the model group,the aortic structure was clear,the degree of hepatocyte degeneration was reduced,the serum total cholesterol and low-density lipoprotein levels were significantly decreased (all P<0.01),the high-density lipoprotein level was elevated (P<0.01),and the total liver cholesterol was decreased significantly (P<0.01) in the rabbits of the herbal cake-partitioned moxibustion group and the simvastatin group;compared with the model group,the protein (P<0.01 or P<0.05) and mRNA (P<0.01) expressions of rabbit LXRα in the herbal cake-partitioned moxibustion group and the simvastatin group were increased.Conclusion:Herbal cake-partitioned moxibustion can improve the aortic and hepatic lesions,regulate blood lipid and liver lipid levels,increase the expression of liver cholesterol reverse transport nuclear receptor LXRα,promote reverse cholesterol transport in the rabbits with aortic atherosclerosis,therefore produces an antiatherogenic effect.
10.The reliable treatment choice of nasopharyngeal angiofibroma and causes of operative bleeding.
Gongbiao LIN ; Chang LIN ; Zixiang YI ; Zheming FANG ; Xi LIN ; Wenhui XIAO ; Zhichun LI ; Jinmei CHENG ; Aidong ZHOU ; Shuzhan LAN
Journal of Clinical Otorhinolaryngology Head and Neck Surgery 2014;28(11):770-775
OBJECTIVE:
To introduce the efficacy of three surgical options for juvenile nasopharyngeal angiofibroma (JNA) resection, and causes of operative bleeding.
METHOD:
Retrospective analysis of 36 JNAs,three surgical options were used to resect the tumor. There were 15 cases of Class I tumors , using endoscopic nasal cavity approach. Eighteen cases of class II tumors, via extended Caldwell-Luk incision, using the transantral-infratemporal fosse-nasal cavity combined approach for tumor resection. Three cases of class III tumors, the combined intracranial and extra-cranial approach was used to resect the tumor. Meanwhile, report six typical cases for reference.
RESULT:
Fifteen (15/36) cases of class I tumors, 14 cases were completely resected for the first time without recurrence, 1 recurrence case was re-resected using the same approach. Eighteen (18/36) cases of class II tumors, 13 cases were completely resected for the first time without recurrence, 5 recurrence cases were re-resected totally. Three (3/36) cases of class III were not completely removed, and underwent about 40 Gy radiotherapy with good effects.
CONCLUSION
Using these three surgical options can effectively remove different types of JNA. When necessary, the intracranial residue can use radiotherapy. Under direct vision to separate the tumor, and effective hemostasis play crucial roles for complete removal of the tumor.
Adolescent
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Angiofibroma
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surgery
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Blood Loss, Surgical
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Child
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Female
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Humans
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Male
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Nasopharyngeal Neoplasms
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surgery
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Retrospective Studies
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Treatment Outcome
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Young Adult