Abstract Tibet Plateau is one of the most prevalent areas of brick-tea type fluorosis in China. Effective management of brick-tea type fluorosis is a key point and a difficulty in endemic disease prevention and treatment in Tibet. Brick-tea type fluorosis is a human health concern that occurs under specific natural environments and social humanistic conditions in Tibet. Recently, the prevalence of brick-tea type fluorosis has been effectively reduced in the Tibet Plateau; however, there are still challenges for the overall brick-tea type fluorosis control, and the endemic status remains more severe than other regions endemic for brick-tea type fluorosis in China. Previous studies have shown that intake of high-fluoride brick-tea, dietary habits of drinking tea and specific natural environments are strongly associated with brick-tea type fluorosis in the Tibet Plateau. This review summarizes the advances in the epidemiological characteristics and influencing factors of brick-tea type fluorosis, so as to provide insights into the development of the long-term control strategy for brick-tea type fluorosis in the Tibet Plateau.

ObjectiveTo develop three animal models to mimic muscle tremors of Parkinson's disease and observe effects of Chinese herb compounds Jian-Xing on these models.MethodsPure muscle tremor mice models were developed by single intraperitoneal injection of arecoline or oxotremorine. The mitochondria damaged model was developed by intraperitoneal injection of MPTP(1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine) 20mg/kg for 8 days. Duration time of tremoring was recorded. The climbing time and spontaneous movements of MPTP mice were recorded. HPLC was used to detect the content of dopamine and it's metabolites in MPTP mice.ResultsAfter injection of oxotremorine or arecoline,model mice exhibited significant tremoring, duration time of tremor of mice in Jian-Xing group shortened significantly. As to MPTP model mice, climbing time of model mice prolonged, times of spontaneous movements of model mice decreased and the content of dopamine in striaturn decreased compared with control group. Climbing time of mice in Jian-Xing group shortened, spontaneous movements increased and content of dopamine increased distinctively. ConclusionOxotremorine, arecoline and MPTP all can produce tremor animal models. Chinese herb compounds Jian-Xing can shorten the duration time of tremor.As to MPTP model, Jian-Xing can shorten the climbing time of model mice, increase the spontaneous movements and increase the content of dopamine in striaturn.

Molecular biology experiment is an important course for postgraduates in medical university.Through updating and optimizing what to teach(emphasizing study design,setting up comprehensive experiment and updating practical techniques),improving teaching mode(paying attention to experimental preparation,teacher qualification and postgraduates' capability training) and perfecting evaluation approaches(combining the experiment report with experimental summary and regular grades with experimental practice),good results have been obtained.

Background Bulbar conjunctiva tissue appears to be thinning,elasticity declined,tension reduced and fascia atrophied in conjunctivochalasis.Histopathological examination of conjunctivochalasis shows decrease of elastic fibers and melt of collagen fibers.But there are fewer studies on the ultrastructure of conjunctiva of conjunctivochalasis up to now.Objective This study was to investigate the ultrastructure change of conjunctiva tissue in conjunctivochalasis.Methods Five loose conjunctiva samples of conjunctivochalasis and 5 normal conjunctival tissue samples were collected and ultra-microstructure changes of these samples were observed under the transmission electron microscope.Results The number of fibroblasts in conjunctivochalasis lamina was progressively decreased.The shape of fibroblasts was long and fusiform.Somatic synapse was slim.Nucleus-cytoplasm ratio was increased.Disorder,scattered and broken of the collagen fibril were seen,and some areas were dissolved or lacunae.Normal conjunctival fibroblasts were oval or polygonal,with wieners and long somatic synapse,and intercellular matrix was full of collagen fibril and dense arranged fibers.Fibroblasts in fascia of eonjunctivochalasis were linear,and collagen fibril was seriously defected.Fascia fibroblasts of normal bulbar conjunctiva were spindleshaped and bigger than conjunctivochalasis fibroblasts.There were full of collagen fibrils in intercellular matrix.Conclusions The collagen fibril is decreased and fibroblast cells are degenerated in lamina and fascia of conjunctivochalasis.

ObjectiveTo investigate the role of mitochondrial dysfunction in neurodegenerative diseases and the pharmacological effects of Shen-wu Capsule.MethodsSD rats were divided into 6 groups with 10 rats each:model group was developed by peritoneal injection of 3-nitropropionic acid(3-NPA) 20mg/kg, once every another day. Haloferidoli was used as the positive drug (given to positive control group from 10μg/100g/day to 100μg/100g/day, during modeling). Low dose of Shen-wu Capsule is 0.45g/kg; middle dose of Shen-wu Capsule is 0.9g/kg; high dose of Shen-wu Capsule is 1.8g/kg (once a day for 25days). The rats in normal control group were peritoneally injected with saline and were fed with water.The open field test was used to test the space recognition ability and excitability of CNS of rats. The climbing test was used to test strength of muscles.The content of dopamine(DA) and it's metabolite dihydroxyphenylacetic acid (DOPAC),5-HT in stratium of all groups were detected by high performance liquid chromatograph (HPLC-ECD).ResultsThe 3-NPA model rats showed decrease of activity, rigidity and stagger just like clinical patients with Huntington's diseases. In open field test all indexes of 3-NPA model rats are decreased (P<0.05), while Shen-wu Capsule low dose and high dose can improve all the indexes. There is no difference in strength of muscles among all groups. The content of DA,DOPAC and 5-hydroxytryptamine (5-HT) were distinctly decreased in 3-NPA model rats(P<0.01); rats in three groups of Shen-wu Capsule and positive drug control groups showed increased content of these neurotransmitter(P<0.01). Conclusions Rats injected with 3-NPA can mimic the abnormal behaviors and changes of neurotransmitter in stratium of Huntington's patients, Shen-wu Capsule can ameliorate the behavior of model animals and improve the content of DA,DOPAC and 5-HT in stratium.

Objective To observe effect of Jintong capsule on model mice of tourette syndrome (TS).Methods TS models of mouse were established by intraperitoneal injection of amphetamine (AMP) or subcutaneous injection of apomorphine (APO). The animals were randomly divided into the normal control group, model group, Jintong capsule large dose group, Jintong capsule small dose group and haloperidol control group. The spontaneous movements and grasping action of model animals were observed and the contents of dopamine and its products of metabolism in striatum of animals were detected.Results The abnormal hyperactivity and the content of dopamine of Jintong capsule groups in striatum of AMP model mice were lower than that of the model group ( P< 0.05 ), and the grasping time of Jintong capsule groups in APO model mice shorten compare with the control group ( P<0.05).Conclusion Jintong capsule can ameliorate hyperactivity behaviors of these two animal models, and decrease the content of dopamine in striatum.

OBJECTIVETo observe the effect of Shen warming Pi strengthening method on expressions of serum T cell subsets (C045+%, C03+%, and C04 +/COB+) in diarrhea-predominant irritable bowel syndrome (IBS-0) rats. Methods An IBS-0 rat model was established referring to AL-Chaer's modeling method combined with tail clamp and intragastric administration of sanna leaf. After modeling 30 SO rats were randomly divided into 6 groups according to random digit table, i.e., the model group, the high, middle, low dose Wenshen Jianpi Recipe (WJR) groups, and the Sishen Pill control group, 6 in each group. A normal control group consisting of 6 SO rats were also set up. Rats in high, middle, low dose WJ R groups were administered by gastrogavage with boil-free WJ R at the daily dose of 3. 100, 1. 550, 0. 775 g/kg, respectively. Rats in the Sis hen Pill control group were administered by gastrogavage with boil-free Sis hen Pill at the daily dose of 0. 736 g/kg. Equal volume of normal saline was given by gastrogavage to rats in the model group and the normal control group. All medication lasted for 2 successive weeks. Rats' general state, expressions of T cell subsets (CD45+%, CD3+%, and CD4+ /CDB+) changes were observed.

RESULTSCompared with the normal control group, expressions of CD45+% and CD3+% increased, but CD4+ /CDB+ decreased with statistical difference (P < 0. 05). Compared with the model group, expressions of CD45+% and CD3+% decreased, but CD4+ ICDB+ increased with statistical difference in high, middle, low dose WJR groups, and the Sis hen Pill control group (P <0. 05). Compared with the Sis hen Pill control group, there was statistical difference in all indices except CD45+ value in the low dose SWPSM group (P <0. 05). Compared with the low dose WJ R group, the expression of CD3+% decreased in high and middle dose WJR groups, and the Sis hen Pill control group; CD4+ /CD8+ increased in the Sishen Pill control group and the high dose SWPSM group (all P < 0. 05).

CONCLUSIONSWJR showed better treatment effect. The mechanism of Shen warming Pi strengthening method might be achieved by regulating expressions of CD45+% and CD3+%, and CD4+ /CD8+ ratios.

Animals ; Drugs, Chinese Herbal ; Female ; Irritable Bowel Syndrome ; therapy ; Leukocyte Common Antigens ; metabolism ; Medicine, Chinese Traditional ; Rats ; T-Lymphocyte Subsets ; metabolism

In this study, researchers adopted the network analysis method to study Buyang Huanwu decoction at three levels, namely chemical ingredients, targets and diseases, and discovered the potential effect of Buyang Huanwu decoction in cancer treatment. Besides, they analyzed the "target-target" network of Buyang Huanwu decoction based on diseases, calculated four network indexes, namely node centrality, closeness centrality, betweenness centrality and eigenvector centrality for a comprehensive evaluation on the importance and significance of each target in the network. Afterwards, key targets of Buyang Huanwu decoction were excavated to obtain two important targets--COX-2 and PPAR-gamma, which may be important targets involved in the qi deficiency and blood stasis diseases. Meanwhile, the two targets were the basis to build the core network of "chemical component-target-disease" of Buyang Huanwu decoction, which provided reference for further studies on the effect of Buyang Huanwu decoction in treating qi deficiency and blood stasis diseases. According to the study, the network analysis method was helpful to excavate potential targets Buyang Huanwu decoction in treating qi deficiency and blood stasis diseases, and could provide methodological reference for revealing the mechanism of Buyang Huanwu decoction at multiple levels, with a guiding significance for interpreting mechanisms of traditional Chinese medicinal formulae and developing new drugs.
Drugs, Chinese Herbal ; pharmacology ; Hematologic Diseases ; drug therapy ; Medicine, Chinese Traditional ; Qi ; Yang Deficiency ; drug therapy ; Yin Deficiency ; drug therapy

OBJECTIVETo study the clinical efficaly and safety of Tiepi Fengdou Granule (TFG) and Capsule (TFC) combined with chemotherapy and/or radiotherapy in treating lung cancer patients with Qi-Yin asthenia syndrome (QYAS).

METHODSEighty patients were randomly assigned into 3 groups: the TFG group (32 cases), the TFC group (32 cases) and the Shengmai Capsule control group (16 cases). Changes of symptoms of QYAS, main symptoms of lung cancer, Karnofsky scoring as well as the blood routine test were observed.

RESULTSThe total effective rate of symptom improving in the TFG group and the TFC group was 81.2% and 93.3% respectively, showing insignificant difference between the 2 groups (P > 0.05), but both were higher than that in the Shengmai Capsule control group (50.0%, P < 0.05 and P < 0.01). Additionally, as compared with those before treatment, the neutrophil count increased and the lymphocytes count obviously decreased in the TFC group after treatment (all P < 0.05).

CONCLUSIONBoth dose-forms of the remedies, TFC and TFG, have significant effects in treating lung cancer with QYAS, but with insignificant difference between them.

Adult ; Antineoplastic Combined Chemotherapy Protocols ; therapeutic use ; Combined Modality Therapy ; Diagnosis, Differential ; Drugs, Chinese Herbal ; administration & dosage ; Female ; Humans ; Karnofsky Performance Status ; Lung Neoplasms ; drug therapy ; radiotherapy ; Male ; Medicine, Chinese Traditional ; Middle Aged ; Phytotherapy ; Qi ; Yin Deficiency ; drug therapy

Acupuncture Therapy ; Adult ; Aged ; Chronic Disease ; therapy ; Female ; Humans ; Male ; Middle Aged ; Pharyngitis ; therapy ; Young Adult