1.Discussion and challenge of development of Yunnan medicine in the international environment of Traditional Chinese Medicine
Yuelei QING ; Zhu QIN ; Chang HAN ; Qiu WANG
International Journal of Traditional Chinese Medicine 2021;43(2):105-108
This paper introduced and analyzed the unique geographical location and diverse climatic conditions in the yunnan region, its rich reservation of regional medical plant resources, and the local history, doctors, literatures and medical schools of Traditional Chinese Medicine (TCM). Besides, we combined the characteristics with the current national development strategy "The Belt and Road Initiative" , "cultural soft power" and the Yunnan’s development strategy "big health industry" and "healthy life destination" . This paper discussed the current situation and development prospect of the international development of TCM in Yunnan and the results helped to provide suggestion for the internationalision of TCM in Yunnan.
2.A survey of iodine nutrition status of Tianjin residents between 2002 to 2011 and analysis of suitable iodine content in salt
Chang-chun, HOU ; Zhong-hui, LIU ; Shu-qing, HAN ; Qiang, ZENG ; Yang, WANG
Chinese Journal of Endemiology 2013;32(5):533-536
Objective To investigate the consumption status of iodized salt and iodine nutrition status of Tianjin residents,and to provide a scientific basis for iodine supplementation.Methods Sampling methods:① Salt iodine:According to The National Project of Surveillance on IDD,the iodine in salt samples from 18 Tianjin districts (counties) was tested between 2002 to 2011.②Iodine nutritional status of children:Investigation of iodine nutritional status of children was conducted four times in 2002,2005,2009 and 2011.In 2002 and 2005,two primary schools were selected in each district.By age,gender parity principle,40 subjects aged from 8 to 10 in each school were randomly selected to perform thyroid examination and 20 of them were selected to collect urine samples for determination of urinary iodine.In 2009,according to their sub-area positions in the north,the south,the east,the west and the center of each district,5 primary schools were selected in each town (if there were less than five towns in the district,all towns had been selected).Twenty subjects aged from 8 to 10 in each school were selected to collect urine samples for determination of urinary iodine.In 2011,probability sampling method (PPS) was used to select 30 primary schools,and then 40 children aged from 8 to 10 were randomly selected in each school to examine thyroids.At the same time,urine samples from 12 children of the 40 selected children were tested.③Iodine nutritional status of women of childbearing age:In 2007,2008 and 2010,150,50 and 60 women of childbearing age were selected in Hangu District,urine samples of them were collected for determination of urinary iodine.④Iodine nutritional status of pregnant and lactating women:In 2011,3 towns around each primary school were selected.Five pregnant and five lactating women were selected in each town,urine samples of them were collected for determination of urinary iodine.Test methods:①Salt iodine was tested by direct titration,while Sichuan salt and other reinforced edible salt by arbitration determination based on the General Test Method in Salt Industry-Determination of Iodide Ion (GB/T 13025.7-1999).②Thyroid was tested by B-type-ultrasound and judged according to Diagnostic Criterion of Endemic Goiter (WS 276-2007).③Urinary iodine was tested by the Method for Determination of Iodine in Urine by As3+-Ce4+ Catalytic Spectrophotometry (WS/T 107-2006).Results From 2002 to 2011,the consumption rate of qualified iodized salt,the rate of qualified iodized salt,the coverage rate of iodized salt,the rate of non-iodinated salt was 92.7%(43 489/46 926),97.4%(43 489/44 694),95.1% (44 694/46 926) and 4.8%(2273/46 926),respectively.The median salt iodine was in the range of 29.2-36.7 mg/kg.Children's urinary iodine was monitored 4 times,the median urinary iodine was 228.0,221.5,191.8; and 194.7 μg/L,respectively.Children goiter rates were 2.1%(27/1258),1.6%(19/1186) and 2.1%(26/1219) of the 3 times monitored.The median urinary iodine in pregnant and lactating women was 145.2 and 136.0 μg/L.The median urinary iodine in women of childbearing age was 130.7,196.1 and 229.5 μg/L,which increased with the increase of coverage of iodized salt.Conclusions The iodine nutrition of Tianjin residents,women of childbearing age and lactating women are at appropriate level.The iodine nutrition of pregnant women is lower than appropriate level.Recommended salt iodine level in our city is 30 mg/kg,or 25 mg/kg for ordinary residents,and 30 mg/kg for pregnant women.
3.Investigation on the prevalent condition of adult osteofluorosis in the endemic fluorosis areas of Tianjin in 2008
Chang-chun, HOU ; Shu-qing, HAN ; Zhong-hui, LIU ; Hong-lian, LIU
Chinese Journal of Endemiology 2010;29(3):322-324
Objective To investigate the prevalence of adult osteofluomsis in the endemic fluomsis areas in Tianjin and to provide scientific foundation for endemic fluorosis.Methods Stratified sampling in 55 villages were selected in 3 areas with slight,moderate and severe fluorosis regions in Tianjin from April to June in 2008.Water fluorine were tested and clinical osteofluorosis examinations were conducted to the population aging 16 and above in the villages.Tweenty villages were selected randomly in the slight,moderate and severe fluorosis regions.X-ray osteofluorosis examination were conducted to patients and suspected patients in these 20 villages.Results The geometric mean fluoride content in the water for the 3 areas were 1.35 mg/L,3.44 mg/L,5.49 mg/L,respectively.The prevalence of osteofluorosis were 36.7%(44/120),20.6%(33/160),39.4%(43/109),respectively.The prevalence of osteofluorosis Was increased gradually(r=0.534,P<0.01)and the symptoms and signs of the disease were more serious(H=84.813,P<0.01).The prevalence of X-ray diagnosis Was increased gradually(r=0.990,P<0.01)and signs of the disease were more severe(H=25.169,P<0.01)with an increase in age.There was no statistical significance of prevalence rate of osteofluorosis between males and females,regardless if it Was a clinical diagnosis(X2=0.343,P>0.05)or an X-ray diagnosis(X2=3.532,P>0.05).Conclusions Adult osteofluorosis to a certain extent is still prevalent in the fluorosis areas in Tianjin.Endemic fluorosis is still rampant.Improving water in fulorosis areas should be mandatory.
4.Intestinal absorption properties of three components in salvianolic acid extract and the effect of borneol on their absorption in rats.
Xiao-juan LAI ; Han-qing LIU ; Jun-song LI ; Liu-qing DI ; Bao-chang CAI
Acta Pharmaceutica Sinica 2010;45(12):1576-1581
This study aimed to investigate the effects of concentration, intestinal section and borneol on the intestinal absorption of salvianolic acids. The experiment not only studied the intestinal absorption properties of three concentrations of rosmarinic acid, salvianolic acid B and salvianolic acid A at duodenum, jejunum and ileum, but also of salvianolic acids compatible with borneol at different concentrations using single-pass intestinal perfusion model in rat with phenol red as the marker. The results showed that salvianolic acids was stable under weak-acid condition and affected by metabolism enzyme; The Peff and Ka significantly different among three concentrations of rosmarinic acid and salvianolic acid B, whose intestinal absorption were saturated in high concentration, suggesting that the transport mechanisms of rosmarinic acid and salvianolic acid B were similar to active transport or facilitated diffusion; However, there was inconspicuousness in the Peff and Ka of salvianolic acid A at different concentrations, whose absorption was not saturated in high concentration, indicating that the transport mechanisms of salvianolic acid A was passive diffusion; The Peff and Ka in the ileum obviously higher than those in the duodenum and jejunum, namely the ileum was the best absorption section; When concentration of borneol increased, the enhancing effect of intestinal absorption of salvianolic acids increased, but significantly decreased when borneol increased to some degree. The enhancing effect of medium borneol concentration was the optimum. This implied that borneol can enhance the intestinal absorption of salvianolic acids, and the capacity of enhancing effect was influenced by the concentration of borneol.
Animals
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Benzofurans
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isolation & purification
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pharmacokinetics
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Bornanes
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administration & dosage
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pharmacokinetics
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pharmacology
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Caffeic Acids
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isolation & purification
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pharmacokinetics
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Cinnamates
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isolation & purification
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pharmacokinetics
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Depsides
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isolation & purification
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pharmacokinetics
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Dose-Response Relationship, Drug
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Duodenum
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metabolism
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Ileum
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metabolism
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Intestinal Absorption
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Jejunum
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metabolism
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Lactates
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isolation & purification
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pharmacokinetics
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Male
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Perfusion
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methods
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Plants, Medicinal
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chemistry
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Rats
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Rats, Sprague-Dawley
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Salvia miltiorrhiza
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chemistry
5.Clinical observation on acupoint injection of VitB12 for treatment of trigeminal neuralgia.
Chang-shan ZHOU ; De-qing KONG ; Zheng-yong HAN
Chinese Acupuncture & Moxibustion 2007;27(9):668-670
OBJECTIVETo probe a better method for treatment of trigeminal neuralgia. Methods One hundred and four cases of trigeminal neuralgia were randomly divided into a treatment group (n=57) and a control group (n=47). The treatment group were treated witb acupoint injection of 2000 microg of VitB12, with Xiaguan (ST 7) selected as main point, and the control group witb oral administration of Carbamazepine. The therapeutic effect were analyzed after 3 tberapeutic courses.
RESULTSTbe cured and markedly effective rate and the effective rate were 82.5% and 98.2% in the treatment group, and 57.4% and 8O.9% in the control group, with a very significant difference between the two groups (P < 0.01). After treatment, there was a very significant difference in the cumulative score of pain between the two groups (P < 0.01).
CONCLUSIONAcupoint injection of VitB12 has a better therapeutic effect than that of oral administration of Carbamazepine.
Acupuncture Points ; Adult ; Aged ; Female ; Humans ; Injections ; Male ; Middle Aged ; Trigeminal Neuralgia ; therapy ; Vitamin B 12 ; administration & dosage
7.Alteration of cytokines and mucin in lower respiratory tract in allergic rhinitis model in rats.
Fei HAN ; Yun-Fang AN ; Chang-Qing ZHAO
Chinese Journal of Otorhinolaryngology Head and Neck Surgery 2005;40(5):339-342
OBJECTIVETo investigate the relationship between allergic rhinitis (AR) and asthma as well as the mechanisms related with it.
METHODSSixty healthy rats were randomly divided into AR group and control group. AR model was established by intraperitoneal injection of ovalbumin (OVA) and nasal challenge with OVA. Nasal mucosa and lung tissue from both groups were stained with hematoxylin-eosin (HE), alcian-blue and periodic acid-schiff (AB-PAS), respectively. At the same time, the lung tissue was studied by transmission electron microscopy (TEM). Enzyme-linked immunosorbent assay (ELISA) and immunohistochemistry were used to examine the level of interleukin-4 (IL-4) in bronchial alveolus lavage fluid (BALF) and the expression of intercellular adhesion molecule-1 (ICAM-1) and MUC5AC in nasal and lung tissue, respectively.
RESULTSInfiltration of inflammatory cells in nasal mucosa and lung tissue of AR model in rat was evident. Cilia destruction of bronchial epithelial cells of AR model was found. The level of IL4 in BALF of AR group (58.10 +/- 7.92) pg/ml was significant higher compared with that in control group (24.66 +/- 2.07) pg/ml. The expression of ICAM-1 (0.66 +/- 0.24) and MUC5AC (0.71 +/- 0.10) in lung tissue were both significantly higher than that in control group (0.23 +/- 0.02, 0.29 +/- 0.03).
CONCLUSIONSAllergic inflammation in nasal mucosa not only leads to changes in both histopathology and immunology, but also initiates the inflammation in lower respiratory tract mainly causing the change of cytokines and mucin.
Animals ; Bronchoalveolar Lavage Fluid ; Intercellular Adhesion Molecule-1 ; metabolism ; Interleukin-4 ; metabolism ; Mucin 5AC ; metabolism ; Mucins ; metabolism ; Nasal Mucosa ; metabolism ; pathology ; Rats ; Rhinitis, Allergic, Perennial ; chemically induced ; metabolism ; pathology
9.Effect of Shenkang injection on the cytochrome 2C9 enzyme activity in rats
Ze-Na CHANG ; USMAN MUHAMMAD ; Zhen-Han ZHU ; Jun-Ping HAN ; Tian-Ao CHEN ; Chang-Qing YANG
The Chinese Journal of Clinical Pharmacology 2017;33(13):1240-1243,1247
Objective Diclofeanc as probe drug to investigate the influence of Shenkang injection on the activity of CYP2C9 enzyme in rats.Methods A total of 24 SD male rats were randomly divided into control group (0.9% NaCl),low dose (6.7 mL · kg-1),middle dose (13.3 mL· kg-1),high dose (26.6 mL · kg-1) Shenkang injection group,each group 6 rats.The relevant injection was administered by intraperitoneal injection,twice a day for 7 d.On the eighth day before collected the blood plasma samples each group were given relevant injection and all rats were injected with diclofenac (15 mg · kg-1,iv) 1 h after last administration.The orbital blood samples were collected before and 5,15,30,45 min and 1,1.5,2,3,4,6,8,10,12,24 h after diclofenac administration through femoral venous.A sensitive high-performance liquid chromatography method was established to characterize and validate for the determination of plasma concentration of diclofenac and 4'-hydroxy-diclofenac in rats.Pharmacokinetic parameters were calculated with WinNolin 6.1 pharmacokinetic software.Results The area under the concen-tration-time curve (AUC0-24 h) of diclofenac in control group,low,middle and high-dose Shenkang injection group were (21.12±2.88),(25.13 ±8.13),(31.11 ± 11.19),(32.32 ±6.18) mg · h · L-1(P >0.05).The AUC0→24h of 4'-hydroxy-diclofenac were (9.79 ±1.12),(7.84 ±2.67),(9.97 ±3.85),(10.39 ±3.38)mg · h · L-1 (P>0.05).The t1/2 of diclofenac in control group,low,middle and high-dose Shenkang injection group were (6.21 ± 1.78),(7.46 ±2.20),(6.40 ± 1.50),(6.13 ±2.19) h(P >0.05).The t1/2 of 4'-hydroxy-diclofenac in control group,low,middle and high-dose Shenkang injection group were (11.53 ±4.31),(30.85 ± 10.52),(23.29 ± 13.09),(22.53 ± 10.95)h(P >0.05).There was no statistical significant difference in other pharmacokinetic parameters (P > 0.05).Conclusion Consecutive administration of Shenkang injection may not have an effect on the pharmacokinetic of diclofenac and 4'-hydroxy-diclofenac of typical probe substrates of CYP2C9 in rats.The present study would provide some reference on Shenkang injection have no influence on CYP2C9.
10.Up-regulation of visfatin expression in subjects with hyperthyroidism and hypothyroidism is partially relevant to a nonlinear regulation mechanism between visfatin and tri-iodothyronine with various concentrations.
Jing HAN ; Tian-ou ZHANG ; Wen-hua XIAO ; Cui-qing CHANG ; Hua AI
Chinese Medical Journal 2012;125(5):874-881
BACKGROUNDVisfatin, a visceral fat-derived adipocytokine, plays a significant physiological function in lipid metabolism. However, the precise function of visfatin and its regulation by thyroid hormones are still unknown. This study observed the plasma visfatin concentrations in subjects with hyperthyroidism and hypothyroidism in vivo, and investigated the possible regulation mechanism between visfatin and tri-iodothyronine (T3) in vitro as a further interpretation.
METHODSThe experiment in vivo included clinical subjects (57 patients with thyroid dysfunction and 29 euthyroid healthy volunteers) and an animal model (24 Wistar rats). All subjects were divided into hyperthyroidism, hypothyroidism and euthyroidism groups, with plasma thyroid hormones, thyrotropin, visfatin and triglyceride concentrations determined. Visfatin mRNA expression in visceral fat and liver of rats was detected by quantitative real-time reverse transcription-polymerase chain reaction (RT-PCR). The experiment in vitro studied 3T3-L1 cells and visfatin mRNA expression under nine different T3 concentrations (0, 0.1, 0.25, 0.5, 1, 5, 10, 20, 100 nmol/L) using quantitative real-time RT-PCR.
RESULTSClinical subjects and animal models showed elevated plasma visfatin concentrations in the hyperthyroidism group (20.466 ng/ml (15.263, 26.795 ng/ml) and (1209.164±165.292) ng/L) and hypothyroidism group (12.457 ng/ml (11.115, 15.454 ng/ml) and (1205.425±109.200) ng/L) compared to euthyroidism group (6.891 ng/ml (5.888, 8.803 ng/ml) and (926.650±54.002) ng/L, P<0.001). For animal models, visfatin mRNA expression in visceral fat in the hyperthyroidism and hypothyroidism groups increased about 3.33-fold and 1.98-fold compared to the euthyroidism group (P<0.001), which was positively correlated with plasma visfatin concentrations (r=0.713, P<0.001). However, no significant group difference (P>0.05) and correlation (r=0.121, P=0.572) was found in the liver. T3 induced a remarkable increase of visfatin mRNA expression in 3T3-L1 cells at low concentrations (0-0.5 nmol/L T3) followed by a sharp decrease at higher concentrations (0.5-100 nmol/L T3), with an inflection point at 0.5 nmol/L T3.
CONCLUSIONElevated circulating visfatin levels in subjects with hyperthyroidism and hypothyroidism are possibly due to an increase of visfatin mRNA expression in visceral fat, and a nonlinear regulation mechanism on visfatin mRNA expression under various T3 concentrations might be involved.
3T3-L1 Cells ; Adult ; Animals ; Female ; Humans ; Hyperthyroidism ; blood ; genetics ; metabolism ; Hypothyroidism ; blood ; genetics ; metabolism ; Male ; Mice ; Middle Aged ; Nicotinamide Phosphoribosyltransferase ; genetics ; metabolism ; Reverse Transcriptase Polymerase Chain Reaction ; Triiodothyronine ; blood