1.Applications of resting-state functional MRI in low-frequency fluctuation combined with voxel-based mor-phometry in schizophrenia
Zhi TAN ; Wubiao CHEN ; Yanhua PANG ; Jun XIA ; Shucun LUO
The Journal of Practical Medicine 2017;33(14):2380-2385
Objective To research the applications of resting-state functional MRI in conjunction with voxel-based morphometry on cerebral functions and structures in patients with schizophrenia. Methods Thirty-two patients with schizophrenia and 32 healthy people underwent resting state functional magnetic resonance imaging (Rs-fMRI)and sagittal scanning T1WI with 3D FFE Pulse Sequence. Rest1.8 software was applied to calculate the differences of amplitude of standardized low-frequency fluctuation(ALFF)between the two groups,then the voxel-based morphometry(VBM)data of abnormal brain regions were evaluated to compare the differences of grey matter intensity. Finally,combining with ALEF and VBM,we explored the changes of cerebral functions and structures. Results As compared to the control group ,the ALFF-elevated regions were the right putamen ,the left orbital frontal cortex extending to the left putamen and left dorsal-lateral superior frontal gyrus;the ALFF-decreased regions were the right inferior tempotalgyrus,the left posterior cingulated gyrus and the left angular gyrus(P<0.05). No elevated regions of grey matter intensity were found in the patient group. Conclusions Extensive abnormal active regions of the brain under resting state could be found in patients with schizophrenia ,the grey matter intensity of abnormal regions also decreased generally. They are in accordance with the glutamate-hypothesis of schizophrenia ,which involves extensive impairments of neurons ,disorders of neurotransmitter′s circulations and balances.
2.Chemical constituents from stems and leaves of Micromelum integerrimum.
Yan LIU ; Zhi-yao WANG ; Wen-jun HE ; Ning-hua TAN ; Zhi-qi YIN
Acta Pharmaceutica Sinica 2015;50(4):475-479
A new benzene derivative microintegerrin C (1) and a new norsesquiterpenoid microintegerrin D (2), along with six known compounds (3-8), were isolated and identified from stems and leaves of Micromelum integerrimum by various chromatographies such as silica gel, Sephadex LH-20, RP-18 column chromatography and HPLC. Their structures were mainly identified based on the spectral data analysis such as 1D-, 2D-NMR and HR-EI-MS. All known compounds were isolated from this plant for the first time.
Chromatography, High Pressure Liquid
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Plant Leaves
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chemistry
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Plant Stems
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chemistry
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Rutaceae
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chemistry
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Sesquiterpenes
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isolation & purification
3.Advances in the Avellino corneal dystrophy
Jun-Kai, TAN ; Zhi, WANG ; Xu-Yang, LIU ; Zhi-Wei, ZHANG
International Eye Science 2017;17(8):1461-1464
Avellino corneal dystrophy(ACD) is an autosomal dominant eye disorder caused by mutation of R124H in the transforming growth factor-beta induced gene (TGFBI) on chromosome 5,which was responsible for accumulating of abnormal TGFBI.Although the underlying mechanism by which mutations cause abnormal TGFBI deposition is not yet clear,but we have a better understanding of the etiology and possible pathogenesis of corneal dystrophy with the rapid development of human genetics and molecular biology,and summarizes the current achievement of this disease and understand the roles of TGFBI and its interaction with Periostin,which may contribute to further research in ACD.
4.Analysis of effects of arthroscopic treatment for recurrent patellar dislocation by lateral patellar retinacular release outside the synovial bursa of knee joint combined with reconstruction of medial patellofemoral ligament.
Bei LI ; Jian-yi TAN ; Zhi-bin ZENG ; Tie-jun ZHAN ; Hai-qiang CHEN
China Journal of Orthopaedics and Traumatology 2015;28(7):594-598
OBJECTIVETo introduce an arthroscopic technique in managing recurrent dislocation of the patella and its clinical results.
METHODSSixteen patients with recurrent patellar dislocation were reviewed, including 3 males and 13 females. The average age was 17.6 years old (ranged from 14 to 32 years). The patients suffering from patellar sub-luxation averaged 18.5 months (ranged from 6 to 23 months)before operation. These patients were treated with lateral patellar retinacular release outside the synovial bursa of knee joint and medial patellofemoral ligament reconstruction using the semitendinosus tendon free autograft. The Lyshohm scores before and after operation were used to evaluate outcomes at the final follow-up.
RESULTSAll the patients were followed up, and the duration ranged from 6 to 48 months, with an average of 12 months. There was no recurrence. The Q angle decreased from (16.4 ± 3.7)° to (10.1 ± 1.4)°; insall index decreased from 1.37 ± 0.25 to 1.28 ± 0.23; congruence angle decreased from (21.3 ± 2.6)° to (5.86 ± 2.23)°; Lysholm score improved from 76.1 ± 5.2 to 89.8 ± 4.1 at 6 months after operation.
CONCLUSIONCompared with conventional procedure, arthroscopic surgery for recurrent dislocation of the patella achieves excellent outcomes with minimum invasion.
Adolescent ; Adult ; Arthroscopy ; Bursa, Synovial ; surgery ; Female ; Humans ; Knee Joint ; surgery ; Male ; Patellar Dislocation ; physiopathology ; surgery ; Patellar Ligament ; surgery ; Range of Motion, Articular ; Treatment Outcome ; Young Adult
5.New dicyclopeptides from Dianthus chinensis.
Jing HAN ; Zhe WANG ; Yu-Qing ZHENG ; Guang-Zhi ZENG ; Wen-Jun HE ; Ning-Hua TAN
Acta Pharmaceutica Sinica 2014;49(5):656-660
One new dicyclopeptide cyclo-(L-N-methyl Glu-L-N-methyl Glu) (1), together with one new natural dicyclopeptide cyclo-(L-methyl Glu ester-L-methyl Glu ester) (2), and two known dicyclopeptides cyclo-(L-methyl Glu ester-L-Glu) (3), and cyclo-(L-Glu-L-Glu) (4), were isolated from the aerial parts of Dianthus chinensis L. Their structures were determined by spectroscopic analyses and chemical methods.
Dianthus
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chemistry
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Magnetic Resonance Spectroscopy
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Molecular Structure
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Plant Components, Aerial
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chemistry
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Plants, Medicinal
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chemistry
6.Advances in studies on chemical compositions and pharmacological activities of Arnebiae Radix.
Zhi-lai ZHAN ; Jun HU ; Tan LIU ; Li-ping KANG ; Tie-gui NAN ; Lan-ping GUO
China Journal of Chinese Materia Medica 2015;40(21):4127-4135
This article mainly summarise the results of the chemical compositions and their pharmacological activities of Arnebiae Radix since 1966. The chemistry components isolated from Arnebiae Radix are mainly naphthoquinone, monoterpene phenol and quinone, phenolic acids and their salts, alkaloids, aliphatic and esters. Pharmacological results showed that the chemical compositions and the extracts of Arnebiae Radix have antibacterial, anti-inflammatory, anti-viral, hepatoprotection, antioxidant, anti-tumor and immune function and other activities. This article hopefully to provide a reference for further research, development and utilization of Arnebiae Radix.
Animals
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Boraginaceae
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chemistry
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Drugs, Chinese Herbal
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chemistry
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pharmacology
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Humans
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Molecular Structure
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Plant Roots
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chemistry
7.Application of indocyanine green fluorescein angiography in intracranial aneurysm surgery
Hongping MIAO ; Jun TAN ; Yin NIU ; Jiangkai LIN ; Zhi CHEN ; Hua FENG ; Gang ZHU
Chongqing Medicine 2015;(27):3785-3787
Objective To improve the safety of surgery,the application of indocyanine green fluorescein(ICG)angiography in intracranial aneurysm surgery was investigated.Methods Fifty cases of intracranial aneurysms were retrospectively analyzed.All the patients were received ICG angiography before and after intracranial aneurysm clipping.The efficiency of the surgery was evalu-ated with CT angiography(CTA)and(or)digital subtraction angiography(DSA).The postoperative follow-up was conducted using Glasow outcomes score(GOS).Results Of the 50 patients,3 cases of aneurysmal neck remnant,one case of parent arteries steno-sis,one case of nearby branch stenosis and two cases of “false-negative”were observed after ICG angiography.The clips were adjus-ted until the satisfactory blood flew was restored.Postoperative CTA and(or)DSA confirmed the results of intraoperative ICG an-giography.Of the 40 patients underwent follow-up,GOS score was 5 in 30 cases,4 in 7 case,3 in 2 case and 2 in 1 case.Conclusion ICG angiography is a useful way to assess the clipping of aneurysms,blood flew of parent arteries and nearby branches during the aneurysm surgery.It could raise the safety of surgery and further improve the clinical outcomes of intracranial aneurysms.
8.Pharmacokinetics of ibuprefen and pseudo ephedrine with chlorpheniramine suspension after single and multiple doses in healthy volunteers
Min SONG ; Hong-Yi TAN ; Zhi-Rong TAN ; Chang LIU ; Li YANG ; Hong XIANG ; Zhi-Jun HUANG ; Gui-Xiang ZHANG ; Guo-Ping YANG
The Chinese Journal of Clinical Pharmacology 2010;26(1):28-32,36
Objective To study the pharmacokinetics profiles of ibupro-fen and pseudo ephedrine with chlorpheniramine suspension after single and multiple dosing in healthy volunteers.Methods Three single and one multiple oral doses of ibuprofen and pseudo ephedrine with chlorphe-niramine suspension were given to healthy volunteers respectively.Ibu-profen concentrations in plasma were determined by HPLC-UV method.Pseudo ephedrine and chlorpheniramine concentrations in plasma were determined by HPLC-MS-MS method.The pharmacokinetic parameters were obtained with statistical analysis by DAS Ver 2.0.Results The main pharmacokinetic parameters of 3 single doses(ibuprofen:200,400,600 mg pseudo ephedrine:30,60,90 mg;chlorpheniramine:2,4,6 mg)and multiple dose(ibuprofe,pseudo ephedrine and chlorphe-niramine 200,30,2 mg,respectively)shown that the concentration-time curves of ibuprofen,pseudo ephedrine and chlorpheniramine were described by one-compartment open model and physiological disposi-tions were assumed by linear kinetics characteristics.Conclusion In multiple dosing study,physiological dispositions of ibuprofen,pseudo e-phedrine and chlorpheniramine all existed no induction and inhibition of drug enzyme phenomenon.
9.Effect of moxibustion on T lymphocyte subsets in peripheral blood of rats with gastric cancer
Jing TAN ; Ren-Da YANG ; Huan ZHAO ; Zhuo-Jun PENG ; Li-Zhi OUYANG ; Ya-Ping LIN ; Yan-Ping YANG
Journal of Acupuncture and Tuina Science 2019;17(3):161-167
Objective:To observe the effect of moxibustion on T lymphocyte subsets in peripheral blood of rats with gastric cancer. Methods:Sixty healthy Sprague-Dawley (SD) rats were adaptively fed for one week. By the random number table method, 10 rats were randomly selected as a blank group, and 12 rats were randomly selected to simulate the tumor transplantation process; after transplantation, 10 rats were randomly selected as a sham operation group. The remaining 38 rats were used to prepare gastric cancer models by gastric transplantation of the Walker-256 tumor tissue; 8 rats were randomly selected to verify the successful modeling after 7 d; the remaining 30 rats were randomly divided into a model group, a moxibustion group and an infrared group by the random number table method, with 10 rats in each group. From the first day of enrollment, the rats in the moxibustion group received mild moxibustion at Zhongwan (CV 12), Guanyuan (CV 4) and bilateral Zusanli (ST 36) (the first group) and bilateral Pishu (BL 20) and Weishu (BL 21) (the second group), and the two groups of acupoints were alternated every other day. The rats in the infrared group received infrared radiation on the stomach area and the area on the back between the T12-T13 spinous processes, the two areas were alternated every other day. Rats in the moxibustion group and the infrared group were treated for 20 min each time, once a day for 21 d. Rats in the blank group, the sham operation group, and the model group were simultaneously grasped and fixed, and no other treatment was performed. After 21 d of intervention, the rats in each group were fasted for 12 h, and blood was collected from the orbits. The numbers of CD3+, CD3+CD4+, CD3+CD8+ T lymphocytes in peripheral blood were determined by flow cytometry, and the ratio of CD3+CD4+/CD3+CD8+ was calculated. The rats were sacrificed and the thymus was dissected under sterile conditions to calculate the thymus index. Results:Compared with the blank group, the thymus index, peripheral blood CD3+, CD3+CD4+, CD3+CD8+ and CD3+CD4+/CD3+CD8+ ratio in the sham operation group did not change significantly (allP>0.05). Compared with the blank group, the thymus index of the model group was increased (P<0.05), the CD3+ and CD3+CD8+ T lymphocytes were increased (bothP<0.01), and the CD3+CD4+/CD3+CD8+ ratio was decreased (P<0.05). Compared with the model group, the thymus index of the moxibustion group was increased (P<0.01), and CD3+, CD3+CD4+ and CD3+CD8+ T lymphocytes and the ratio of CD3+CD4+/CD3+CD8+ in peripheral blood were increased (allP<0.05). Compared with the infrared group, the thymus index of the moxibustion group was significantly increased (P<0.05), the CD3+ and CD3+CD4+ T lymphocytes in the peripheral blood were significantly increased (bothP<0.01), and the CD3+CD8+ was increased (P<0.05). Conclusion:Moxibustion can significantly increase the thymus index of gastric cancer-bearing rats and activate CD3+CD4+ and CD3+CD8+ T lymphocytes in peripheral blood.
10.Cure and death situation in early outbreak of COVID-19 in China
Xiao-jie TAN ; Zhi-jun QIAN ; Hong-wei ZHANG
Shanghai Journal of Preventive Medicine 2020;32(4):309-
Objective To investigate the cure and mortality trend in the early outbreak of COVID-19 in China, to increase its entire epidemiological understanding, providing evidence for assessing the prevention and control measures against it and input-output in this regard. Methods Data were collected concerning daily new confirmed cases, the cumulative cure and death cases in China and Hubei Province and outside Hubei Province, which were reported officially from January 20th, 2020 to February 20th, 2020.Calculation was done of the fatality rate, the ratio of the numbers of cumulative cure cases to cumulative death cases, etc, and then the epidemiological description was made. Results As of Feb 20, 2020, the fatality rate of COVID-19 in Hubei Province was 3.42%, which was a little higher than the national figure of 2.96%.The fatality rate of COVID-19 outside Hubei Province in China was 0.71%.The trends on the indexes, including the daily new cure cases, daily new death and the ratio of cumulative cure cases to cumulative death, in Hubei Province and the whole country were found to be highly consistent, while the significant difference existed between Hubei Province and outside Hubei Province in China.The daily ratio of cumulative cure cases to cumulative death in Hubei Province (the whole country) exhibited the U-curve trend, which reached the lowest point on Jan 27 and subsequently rose more rapidly after Feb 5. Conclusion The ratio of cumulative cure cases to cumulative death is easier and effective to reflect the outbreak situation than other absolute indexes like the daily new cure cases or death.Since Feb 5, 2020, the daily cure status of COVID-19 is significantly better than the daily death, which indicates the effectiveness of series of the joint defense and control measures.However, plenty of challenges exist in recovering normal production and life when the epidemic comes to be sustainably prevented and controlled.