Astragaloside IV inhibits Ang H-induced cell proliferation and collagen expression in cardiac fibroblasts by activating short-chain acyl-CoA dehydrogenase / 中国药理学通报

Aim To explore the effect of astragaloside IV (AS-IV) on cell proliferation and collagen expression in cardiac fibroblasts (CFs) of rats induced with angiotensin II (Ang II) and its mechanism. Methods CFs were pretreated with short-chain acyl-CoA dehydrogenase (SCAD) siRNA1186 for 12 h and then co-treated with Ang TJ and AS-IV for 36 h. The expressions of SCAD, α-SMA, collagen I and collagen III in CFs were detected by Western blot. mRNA expression levels of SCAD, a-SMA, collagen I and collagen III in CFs were detected by quantitative real-time PCR. The SCAD enzymatic activity, the content of ATP, hydroxyproline and free fatty acid were measured by detection kits. Results The expression of α-SMA, collagen I and collagen III were up-regulated (all P < 0. 01) in CFs induced by Ang II compared with the control cells, and the expression and enzymatic activity of SCAD significantly decreased (P < 0. 01, P< 0. 05). The content of ATP decreased (P < 0.01), and the content of hydroxyproline and free fatty acids increased (all P < 0.01). Compared with Ang II group, SCAD expression and enzymatic activity, and ATP content were significantly increased (all P < 0.01) in Ang II + AS-TV group, but the content of hydroxyproline and free fatty acids, and the expression of α-SMA, collagen I and collagen III significantly decreased (all P < 0.01). However, compared with the Ang II + NC group, there was no significant difference in all indices in the Ang II + SiRNA1186 + AS-TV group. The protective effect of AS-TV on Ang II -induced cell proliferation and collagen expression in CFs was eliminated by the interference of SCAD SiRNA1186. Conclusions AS-IV may inhibit Ang II-induced cell proliferation and collagen expression in CFs by activating SCAD.

Metabolic mechanism and intervention strategy of atrial fibrillation in the elderly / 生理学报

Atrial fibrillation (AF) is a cardiovascular epidemic that occurs primarily in the elderly with primary cardiovascular diseases, leading to severe consequences such as stroke and heart failure. The heart is an energy-consuming organ, which requires a high degree of metabolic flexibility to ensure a quick switch of metabolic substrates to meet its energy needs in response to physiological and pathological stimulation. Metabolism is closely related to the occurrence of AF, and AF patients manifest metabolic inflexibility, such as insulin resistance and the metabolic shift from aerobic metabolism to anaerobic glycolysis. Moreover, our research group and the others have shown that metabolic inflexibility is a crucial pathologic mechanism for AF. Energy metabolism is closely linked to the aging process and aging-related diseases, and impaired metabolic flexibility is considered as an essential driver of aging. Therefore, this review focuses on the alteration of metabolic flexibility in the elderly and reveals that impaired metabolic flexibility may be an important driver for the high prevalence of AF in the elderly, hoping to provide intervention strategies for the prevention and treatment of AF in the elderly.

Research progress on the mechanism of exosomes in diabetic retinopathy / 国际眼科杂志(Guoji Yanke Zazhi)

Exosomes are nanoscale extracellular vesicles that are secreted by a variety of cells in the body. They carry particular miRNA, protein molecules, transcription factors, and other information molecules, and they play a role in the pathophysiological regulation of a number of diseases in the body. Exosomes can persist steadily in biological tissues and bodily fluids. Exosomes have quickly advanced in ophthalmology in recent years due to the extensive studies of exosomes in a variety of fields, such as diabetic retinopathy, age-related macular degeneration, autoimmune uveitis, corneal disease, glaucoma, and other diseases. The number of people who are blind caused by diabetic retinopathy is rising as living standards rise. However, it is still unclear how diabetic retinopathy works. In recent years, many studies have found that exosomes play an important role in diabetic retinopathy. In this paper, the most recent developments in exosome studies as they relate to the pathogenesis and progression of diabetic retinopathy are reviewed.

Inhibition of the CDK9-cyclin T1 protein-protein interaction as a new approach against triple-negative breast cancer

Cyclin-dependent kinase 9 (CDK9) activity is correlated with worse outcomes of triple-negative breast cancer (TNBC) patients. The heterodimer between CDK9 with cyclin T1 is essential for maintaining the active state of the kinase and targeting this protein-protein interaction (PPI) may offer promising avenues for selective CDK9 inhibition. Herein, we designed and generated a library of metal complexes bearing the 7-chloro-2-phenylquinoline CˆN ligand and tested their activity against the CDK9-cyclin T1 PPI. Complex 1 bound to CDK9 via an enthalpically-driven binding mode, leading to disruption of the CDK9-cyclin T1 interaction in vitro and in cellulo. Importantly, complex 1 showed promising anti-metastatic activity against TNBC allografts in mice and was comparably active compared to cisplatin. To our knowledge, 1 is the first CDK9-cyclin T1 PPI inhibitor with anti-metastatic activity against TNBC. Complex 1 could serve as a new platform for the future design of more efficacious kinase inhibitors against cancer, including TNBC.

High expression of prolyl 4-hydroxylase subunit alpha-2 in lung adenocarcinoma indicates poor prognosis

Abstract Objective To analyze the Prolyl 4-Hydroxylase subunit Alpha-2 (P4HA2) expression in Lung Adenocarcinoma (LAUD). Methods The authors assessed P4HA2 expression in the LUAD tumor ecosystem using single-cell analysis. The authors analyzed the relationship between P4HA2 expression and clinical features in LUAD and Brain Metastasis (BM) cases. The authors assessed the biological functions of P4HA2 using The Cancer Genome Atlas-LUAD dataset. Results P4HA2 was more highly expressed in fibroblasts than in epithelial cells in normal lung and lung adenocarcinoma tissues (p < 0.001). P4HA2 was more highly expressed in malignant epithelial cells than in fibroblasts in the BM tissue (p = 0.002). P4HA2 expression was significantly higher in female cases than in male cases (p = 0.049) and was related to lymph node metastasis (p = 0.019) and a higher TNM stage (p = 0.020). High P4HA2 expression indicated a poor prognosis and served as an independent prognostic risk factor in lung cancer. P4HA2 was mainly enriched in the extracellular matrix organization, NADH regeneration, and canonical glycolysis. P4HA2 expression was negatively correlated with naive B cells, T-cells, CD8, and activated natural killer cells, but positively correlated with CD4 memory-activated T cells, regulatory T-cells, resting dendritic cells, and dendritic cell activation. P4HA2 messenger RNA expression was correlated with programmed death-ligand 1 and cytotoxic T-lymphocyte-associated protein 4. Conclusion P4HA2 is highly expressed in LUAD tumor cells, especially for the BM subtype, and is a valuable prognostic indicator of LUAD. It may be involved in a biological activity of distant metastasis of LUAD tumor cells and serve as a potential treatment target.

L1 cell adhesion molecule high expression is associated with poor prognosis in surgically resected brain metastases from lung adenocarcinoma

Abstract Objectives Accurate prognosis assessment across the heterogeneous population of brain metastases is very important, which may facilitate clinical decision-making and appropriate stratification of future clinical trials. Previous studies have shown the L1 Cell Adhesion Molecule (L1CAM) is potentially involved in human malignancies of multiple different samples and unfavorable survival. However, no data of L1CAM are available for the brain metastases from lung adenocarcinoma, especially for the one with neurosurgical resection. Method The authors investigated the L1CAM expression in cranial metastatic lesions for patients with brain metastases from lung adenocarcinoma after neurosurgical resection using tissue microarrays that were obtained from the Department of Neurosurgery at the Cancer Hospital of the Chinese Academy of Medical Sciences. Furthermore, the relationship between L1CAM expression and clinic-pathological parameters, including overall survival time, was analyzed to assess the prognostic value of L1CAM. Results L1CAM high expression was found in 62.30% of brain metastases from lung adenocarcinoma and significantly correlated with brain metastasis number (p = 0.028) and Lung-molGPA score (p = 0.042). Moreover, L1CAM expression was an independent predictor of survival for brain metastases after neurosurgical resection in a multivariate analysis. Patients with L1CAM high expression had unfavorable overall survival time (p = 0.016). In addition, the multivariate analysis also showed age and extracranial transfer were also the independent prognostic factors for this type of patient with brain metastases. Conclusions A subset of brain metastases from lung adenocarcinoma aberrantly expresses L1CAM. L1CAM is a novel independent prognostic factor for brain metastasis from lung adenocarcinoma after neurosurgical resection.

Effect of weight growth velocity in the early stage after birth on neurodevelopment of preterm infants at the corrected age of 12 months / 中国当代儿科杂志

OBJECTIVE@#To study the effect of weight growth velocity in the early stage after birth on the neurodevelopment of preterm infants at the corrected age of 12 months.@*METHODS@#Related data were collected from the preterm infants who were discharged from the Department of Neonatology, Third Affiliated Hospital of Guangzhou Medical University, from July 1, 2015 to December 31, 2019 and were followed up at the outpatient service of high-risk infants. According to the weight growth velocity from birth to the corrected gestational age of 40 weeks, the infants were divided into two groups: low velocity [< 10 g/(kg·d); @*RESULTS@#At the corrected age of 12 months, the low velocity group had a significantly lower score of fine motor (@*CONCLUSIONS@#The weight growth velocity from birth to the corrected age of 40 weeks affects the development of fine motor and language in preterm infants at the corrected age of 12 months; however it needs to be further verified by large-sample studies.

Development of fetal growth charts in twins stratified by chorionicity and mode of conception: a retrospective cohort study in China / 中华医学杂志(英文版)

BACKGROUND@#Twin pregnancies continue to increase worldwide; however, the current clinical prenatal evaluation for the intrauterine growth of twins still relies on the growth standards of singletons. We attempted to establish a set of fetal biometric references for Chinese twin pregnancies, stratified by chorionicity and conception mode as spontaneously conceived monochorionic diamniotic (SC-MCDA), spontaneously conceived dichorionic diamniotic (SC-DCDA), and assisted reproductive technology dichorionic diamniotic (ART-DCDA) twins.@*METHODS@#From 2016 to 2019, the ultrasonographic fetal biometric measurements were longitudinally collected in pregnant women, including fetal weight, biparietal diameter, head circumference, abdominal circumference, femur length, and humerus length. The linear mixed models were used to test the difference of growth patterns between groups, and the growth curve of each biometric parameter was modeled by a generalized additive model for location scale and shape.@*RESULTS@#A total of 929 twin pregnant women and 2019 singleton pregnant women, met the inclusion criteria. Among twin pregnancies, 148 were SC-MCDA, 215 were SC-DCDA, and 566 were ART-DCDA twins. Overall, SC-DCDA twins grew faster than SC-MCDA twins, while slower than ART-DCDA twins (all P < 0.05), and all of the three groups showed significant differences comparing with singletons, especially during the third trimester. Hence, the customized fetal growth charts of each fetal biometric parameter were, respectively, constructed for SC-MCDA, SC-DCDA, and ART-DCDA twins.@*CONCLUSIONS@#The fetal biometric trajectories demonstrated characteristic patterns according to chorionicity and conception mode. To fill the gap, we modeled fetal biometric parameters for Chinese SC-MCDA, SC-DCDA, and ART-DCDA twin pregnancies, hoping to provide a reference for the further establishment of fetal growth reference values for Chinese twin fetuses.

Effect of acupuncture for regulating spleen and stomach on aspirin resistance in patients with type 2 diabetes mellitus: a randomized controlled trial / 中国针灸

OBJECTIVE@#To observe the effect of acupuncture for regulating spleen and stomach on aspirin resistance in patients with type 2 diabetes mellitus (T2DM) and explore the effect mechanism.@*METHODS@#A total of 68 T2DM patients complicated with aspirin resistance were randomized into an observation group and a control group, 34 cases in each one. On the base of the conventional treatment for diabetes, aspirin enteric-coated tablets were prescribed for oral administration, 100 mg each time, once daily in the control group. In the observation group, on the basis of the treatment as the control group, acupuncture was used for regulating spleen and stomach at Zhongwan (CV 12), Zusanli (ST 36), Yinlingquan (SP 9), Hegu (LI 4), etc., once daily. The treatment for 1 week was as one course and 4 courses of treatment were required totally in two groups. Before and After treatment, the indexes of platelet function (platelet aggregation rate [PAG] and salicylic acid concentration), the indexes of vascular endothelial function (6-keone prostaglandin F1α[6-keto-PGF1α], thromin B2 [TXB2] and cyclooxysynthase-2 [COX-2]), blood glucose (fasting plasma glucose [FPG], 2 h plasma glucose [2h PG] and glycosylated hemoglobin [HbA1c]), insulin resistance index (HOMA-IR), blood lipid indexes (total cholesterol [TC], triacylglycerol [TG], high-density lipoprotein cholesterol [HDL-C] and low-density lipoprotein cholesterol [LDL-C]) and the total score of TCM symptoms were observed in the patients of two groups. Clinical therapeutic effect and safety was compared in the patients between the two groups after treatment and the recurrence rate of cardiocerebrovascular events was followed up 6 months after treatment.@*RESULTS@#After treatment, PAG, salicylic acid concentration, TXB2, COX-2, FPG, 2h PG, HbA1c, HOMA-IR, LDL-C, TC, TG and the total scores of TCM symptoms were all reduced as compared with those before treatment in the two groups (@*CONCLUSION@#Acupuncture for regulating spleen and stomach combined with aspirin enteric-coated tablets relieve insulin resistance and reduces blood glucose and lipid as well as the recurrence rate of cardiocerebrovascular events in the patients with T2DM, which is probably related to the regulation of insulin resistance and the improvement of vascular endothelial function. This combined therapy achieves the better effect on aspirin resistance as compared with simple aspirin enteric-coated tablets.

Effect of paeonol on adip/camkk(i/ampk pathway in alcoholic fatty liver in mice / 中国药理学通报

Aim To investigate whether the Adip/CaMKKp/AMPK pathway is involved in the treatment of alcoholic fatty liver in mice treated with paeonol. Methods After administration of paeonol on the basis of the mouse alcoholic fatty liver model, the inflammatory factors and TG and TC were detected by Elisa method to verify the validity of the model and drug treatment; meanwhile, the expression levels of Adip and ACC were detected by Elisa, and the nucleic acid and protein levels of Adip, CaMKK{3 and AMPKaby PCR and WB. Results Adip expression levels did not change significantly in each treatment group. Compared with control group, as for the expression of CaMKKp and AMPKa at the nucleic acid and protein-phosphorylation levels, ihe ElOH group was down-regulated to varying degrees, and the Sil and Pae groups improved the phenomenon to varying degrees. Compared with control group, as for the expression of SREBPlc at the nucleic acid and protein levels, the EtOH group was up-regulated to varying degrees, and the Sil and Pae groups improved the phenomenon to varying degrees. Conclusions The changes of theAdip/CaMKKp/AMPK signaling pathway confirm that pae-onol reduces steatosis injury of alcoholic fatty liver and inflammatory level in mice via this pathway.

Effects of monosialonic acid tetrahexose ganglioside sodium and edaravone on serum Hcy and hs-CRP in patients with acute cerebral infarction / 中国生化药物杂志

Objective To investigate the effects of monosodium tetrahexose ganglioside sodium (GM-1) combined with edaravone in the treatment of acute cerebral infarction (ACI) in patients with serum homocysteine (Hcy), high sensitivity C-reactive protein (Hs-CRP). Methods 66 patients with ACI were randomly divided into observation group and control group, 33 cases were treated with conventional neurology. The control group was treated with edaravone. The observation group was treated with edaravone and GM-1. (NIHSS) score, serum hs-CRP and Hcy levels were compared between the two groups. Results The total effective rate of the observation group was 90.91%, which was significantly higher than that of the control group (P<0.05). After 21 days of treatment, the NIHSS score, serum Hcy and hs-CRP in the observation group were significantly lower than those in the control group (P<0.05 ). Conclusion GM-1 combined with edaravone is effective in the treatment of ACI, which can promote the rehabilitation of neurological function and living activity. Its mechanism may be related to its anti-inflammatory response, reduced Hcy level and protection of brain cell injury.

Effects of monosialonic acid tetrahexose ganglioside sodium and edaravone on serum Hcy and hs-CRP in patients with acute cerebral infarction / 中国生化药物杂志

Objective To investigate the effects of monosodium tetrahexose ganglioside sodium (GM-1) combined with edaravone in the treatment of acute cerebral infarction (ACI) in patients with serum homocysteine (Hcy), high sensitivity C-reactive protein (Hs-CRP). Methods 66 patients with ACI were randomly divided into observation group and control group, 33 cases were treated with conventional neurology. The control group was treated with edaravone. The observation group was treated with edaravone and GM-1. (NIHSS) score, serum hs-CRP and Hcy levels were compared between the two groups. Results The total effective rate of the observation group was 90.91%, which was significantly higher than that of the control group (P<0.05). After 21 days of treatment, the NIHSS score, serum Hcy and hs-CRP in the observation group were significantly lower than those in the control group (P<0.05 ). Conclusion GM-1 combined with edaravone is effective in the treatment of ACI, which can promote the rehabilitation of neurological function and living activity. Its mechanism may be related to its anti-inflammatory response, reduced Hcy level and protection of brain cell injury.

Testing of validity and reliability of simplified Chinese SF-36v2 scale for evaluating the quality-of-life of people immigrating to high altitude / 解放军医学杂志

Objective To evaluate the validity and reliability of simplified Chinese SF-36v2 questionnaire for assessment of life quality of people immigrating to high altitude at different time periods.Methods Two hundred and forty-eight Chinese young males,aged 16-36 years (mean 22.1 years),immigrating to an altitude of 4520m plateau for 0.3-10.8 years (mean 2.3 years),were selected by cluster sampling methods.The general demographic characteristics questionnaire and simplified Chinese SF-36v2 scale were investigated by self-administered questionnaire.Thirty-four subjects were randomly sampled and re-examined by questionnaire after 4 weeks.Results A total of 252 questionnaires were sent out,and a total of 248 valid questionnaires (98.4％) were collected.The scores of 8 scales in SF-36v2,including physical function (PF),role-physical (RP),bodily pain (BP),general health (GH),vitality (VT),social function (SF),role-emotional (RE) and mental health (MH),were 78.50 ± 15.34,63.30 ± 39.65,70.60 ± 17.69,56.40 ± 18.21,59.10 ± 18.18,85.70 ± 18.90,53.68 ± 41.65,59.35 ± 13.61.The floor effects were 0 except for RP (17.80％) and RE (27.92％) and the ceiling effects were 5.08％,40.11％,3.55％,0,2.54％,9.64％,31.47％,0.The split half reliability of SF-36v2 scale was 0.632-0.800,and the Cranbach's coefficient of α was 0.641-0.824,the test-retest reliability coefficient was 0.543-0.848.The success rate of set validity was 100％,and the total discriminant validity success rate was 95.36％.Factor analysis was used to extract 2 principal factors,which could explain 69.5％ of the total variance.Conclusion The simplified Chinese SF-36v2 scale has good internal consistency,reliability and validity,and it can be used to assess the quality of life in different periods.

Tolerance of rat bone marrow mesenchymal stem cells overexpressing human heme oxygenase 1 to ischemia/hypoxia injury / 中国组织工程研究

BACKGROUND:Under ischemia/hypoxia microenvironment,very low survival rate of transplanted bone marrow mesenchymal stem cells (BMSCs) in the host limits its efficacy in the treatment of acute myocardial infarction.OBJECTIVE:To explore the tolerance of human heme oxygenase 1 (hHO-1) gene modified rat BMSCs to ischemia/hypoxia injury.METHODS:The rat BMSCs were transfected with hHO-1 recombinant adenovirus.Western blot assay was used to determinate the optimal time of hHO-1 protein expression.hHO-1 modified rat BMSCs were cultured in hypoxia and serum-free conditions that simulated ischemia/hypoxia microenvironment in vivo.Cell counting kit-8 and trypan blue staining were performed to detect the survival rate of BMSCs at 12,24,48,72 hours after culture under the ischemia/hypoxia microenvironment.Flow cytometry was used to detect apoptosis in BMSCs at 24 hours after culture under the ischemia/hypoxia microenvironment.RESULTS AND CONCLUSION:The expression of hHO-1 protein was highest at 4 days after transfection.Under the ischemia/hypoxia microenvironment for 12,24,48,72 hours,the survival rates of transfected BMSCs were significantly higher as compared with the untransfected cells (P ＜ 0.05),shown by the cell counting kit-8 and trypan blue staining.In addition,the results from flow cytometry showed that there was a higher survival rate of transfected BMSCs than untransfected cells at 24 hours of culture under the ischemia/hypoxia microenvironment (P ＜ 0.05).To conclude,hHO-1 modified rat BMSCs have stronger tolerance to the ischemia/hvpoxia microenvironment.

Therapeutic Observation of Regulating Spleen-stomach Needling for Type 2 Diabetic Foot / 上海针灸杂志

Objective To observe the clinical efficacy of needling method of regulating spleen-stomach in treating early-stage type 2 diabetic foot (DF).Method A hundred patients with early-stage type 2 DF were randomized into a treatment group and a control group,50 cases each.The two groups both received conventional treatment for diabetes.In addition,the treatment group was intervened by needling method of regulating spleen-stomach;the control group was given oral administration of Pancreatic kininogenase enteric-coated tablets.After 6-week treatment,the changes in fasting blood glucose (FBG),2-hour postprandial blood glucose (P2hBG),serum total cholesterol (TC),triglyceride (TG),6-keto-PGF1α and thromboxane B2 (TXB2) contents were observed.The clinical efficacies of the two groups were also compared.Result The total effective rate was 91.8％ in the treatment group versus 75.5％ in the control group,and the between-group difference was statistically significant (P＜0.05).The levels of FBG,P2hBG,TC,TG,6-keto-PGF1α and TXB2 were significantly changed after the intervention in the two groups (P＜0.01,P＜0.05).The treatment group was significantly different from the control group in comparing each parameter after the intervention (P＜0.01,P＜0.05).Conclusion Needling method of regulating spleen-stomach is an effective method in treating early-stage type 2 DF,and can improve the progressive injury induced by abnormal glucose metabolism.

Traditional Chinese medicine inheritance system analysis of professor Ding Yuanqing in treating tic disorder medication based on experience / 中国中药杂志

In recent years, the incidence of tic disorders has increased, and it is not uncommon for the patients to treat the disease. The pathogenesis and pathogenesis of Western medicine are not yet clear, the clinical commonly used western medicine has many adverse reactions, traditional Chinese medicine (TCM) research is increasingly valued. Based on the software of TCM inheritance assistant system, this paper discusses Ding Yuanqing's experience in treating tic disorder with Professor. Collect yuan Qing Ding professor in treating tic disorder of medical records by association rules Apriori algorithm, complex system entropy clustering without supervision and data mining method, carries on the analysis to the selected 800 prescriptions, to determine the frequency of use of prescription drugs, the association rules between the drug and digging out the 12 core combination and the first six new prescription, medication transferred to the liver and extinguish wind, cooling blood and relieving convulsion, Qingxin soothe the nerves, with the card cut, flexible application, strict compatibility.

Dynamic Alterations in Microarchitecture, Mineralization and Mechanical Property of Subchondral Bone in Rat Medial Meniscal Tear Model of Osteoarthritis / 中华医学杂志(英文版)

<p><b>BACKGROUND</b>The properties of subchondral bone influence the integrity of articular cartilage in the pathogenesis of osteoarthritis (OA). However, the characteristics of subchondral bone alterations remain unresolved. The present study aimed to observe the dynamic alterations in the microarchitecture, mineralization, and mechanical properties of subchondral bone during the progression of OA.</p><p><b>METHODS</b>A medial meniscal tear (MMT) operation was performed in 128 adult Sprague Dawley rats to induce OA. At 2, 4, 8, and 12 weeks following the MMT operation, cartilage degeneration was evaluated using toluidine blue O staining, whereas changes in the microarchitecture indices and tissue mineral density (TMD), mineral-to-collagen ratio, and intrinsic mechanical properties of subchondral bone plates (BPs) and trabecular bones (Tbs) were measured using micro-computed tomography scanning, confocal Raman microspectroscopy and nanoindentation testing, respectively.</p><p><b>RESULTS</b>Cartilage degeneration occurred and worsened progressively from 2 to 12 weeks after OA induction. Microarchitecture analysis revealed that the subchondral bone shifted from bone resorption early (reduced trabecular BV/TV, trabecular number, connectivity density and trabecular thickness [Tb.Th], and increased trabecular spacing (Tb.Sp) at 2 and 4 weeks) to bone accretion late (increased BV/TV, Tb.Th and thickness of subchondral bone plate, and reduced Tb.Sp at 8 and 12 weeks). The TMD of both the BP and Tb displayed no significant changes at 2 and 4 weeks but decreased at 8 and 12 weeks. The mineral-to-collagen ratio showed a significant decrease from 4 weeks for the Tb and from 8 weeks for the BP after OA induction. Both the elastic modulus and hardness of the Tb showed a significant decrease from 4 weeks after OA induction. The BP showed a significant decrease in its elastic modulus from 8 weeks and its hardness from 4 weeks.</p><p><b>CONCLUSION</b>The microarchitecture, mineralization and mechanical properties of subchondral bone changed in a time-dependent manner as OA progressed.</p>

Evaluation of consistency and difference of Polygoni Cuspidati Rhizoma et Radix pieces using total statistical moment method combined with cluster analysis and principal component analysis / 中草药

Objective: To establish a method to evaluate the consistency and difference of Polygoni Cuspidati Rhizoma et Radix from different batches. Methods: Chemical fingerprints of 11 batches of Polygoni Cuspidati Rhizoma et Radix were established by HPLC; The follow parameters, such as under curve of total quantum (AUCT), area under curve of total quantum perweight (AUCPWT), mean chromatographic retention time of total quantum (MCRTT), and variance of chromatographic retention time of total quantum (VCRTT), were also calculated using total statistical moment method. The similarities were obtained by total statistical moment method, cosine method, and correlation coefficient method. Cluster analysis (CA) and principal component analysis (PCA) were adopted to classify the samples. Results: Chemical fingerprints were established with 13 common peaks and polydatin, resveratrol, emodin glycosides, and emodin were identified. AUCT, AUCPWT, MCRTT, and VCRTTwere calculated as 1.52 × 106 AU·min, 2.31 × 103 AU·min·mL/mg, 22.0 min, and 110.0 min2, respectively. The similarities of all batches of samples were over 0.85. The samples were divided into four categories by CA or PCA. Conclusion: Chemical fingerprint combined with total statistical moment method, CA, and PCA can evaluate the consistency and difference of Polygoni Cuspidati Rhizoma et Radix, which is suitable for the quality control of Chinese materia medica.

Prevention and treatment of aromatase inhibitor-associated bone loss by shugan jiangu recipe in postmenopausal women with breast cancer: a clinical study / 中国中西医结合杂志

<p><b>OBJECTIVE</b>To study the effect of Shugan Jiangu Recipe (SJR) on bone mineral density (BMD) and serum bone metabolic biochemical markers in postmenopausal breast cancer patients with osteopenia.</p><p><b>METHODS</b>Totally 38 patients of postmenopausal women with breast cancer, who received aromatase inhibitors (AIs), were assigned to the treatment group (21 cases) and the control group (17 cases) by using random digit table. All patients took Caltrate D Tablet (containing Ca 600 mg and Vit D3 125 IU), one tablet daily. Patients in the treatment group took SJR, 6 g each time, twice daily for 6 successive months. The bone mineral density (BMD) level was detected before treatment and at months 6 after treatment. Levels of bone alkaline phosphatase (BALP), bone gla protein (BGP), tartrate-resistant acid phosphatase (TRAP), and C-terminal telopeptide of type II collagen (CTX-II) were detected by enzyme linked immunosorbent assay (ELISA). The drug safety was also assessed.</p><p><b>RESULTS</b>Compared with before treatment, BMD of L2-4 and femur neck obviously increased in the treatment group at month 6 after treatment (P < 0.01), serum BALP and TRAP decreased (P < 0.05). Compared with before treatment, BMD of L2-4 and femur neck obviously decreased in the control group at month 6 after treatment (P < 0.05), serum BALP and TRAP increased (P < 0.01). Compared with the control group, lumbar and femur neck BMD obviously increased, serum levels of BGP and BALP obviously decreased, and serum levels of CTX-II and TRAP obviously increased in the treatment group at month 6 after treatment (P < 0.01). No serious adverse event occurred during the treatment period. Bone fracture occurred in one case of the control group (5.8%).</p><p><b>CONCLUSION</b>SJR could attenuate bone loss of postmenopausal women with breast cancer who received AIs, increase BMD and improve abnormal bone metabolism.</p>

Clinical observation on repair of lymphocyte injury in patients with diabetic nephropathy treated by regulating spleen-stomach needling / 中国针灸

<p><b>OBJECTIVE</b>To explore therapeutic effect and action mechanism of regulating spleen-stomach needling on diabetic nephropathy (DN).</p><p><b>METHODS</b>Using multi-centric, randomized, controlled and blind principles, 144 cases of DN were divided into an observation group and a control group according to random digital tab, 72 cases in each one. Based on regular treatment of diabetes, the regulating spleen-stomach needling was applied at Zhongwan (CV 12), Quchi (LI 11), Hegu (LI 4) and Xuehai (SP 10), etc. in the observation group while Shenshu (BL 23), Taixi (KI 3), Sanyinjiao (SP 6), Yanglingquan (GB 34), etc. were selected in the control group by reference of Acupuncture and moxibustion. The treatment was given twice a day, six days as a treatment session with interval of one day between sessions. Totally six weeks were required. Changes of clinical symptoms and signs, fast blood glucose (FBG), urinary albumin excretion rate (UAER), beta2-microglobulin (beta2-MG), monocyte chemotactic protein-1 (MCP-1), lymphocyte membrane cholesterol, propanediol (MDA), PCO, 8-hydroxydeoxy guanosine (8-OHdG), superoxide dismutase (SOD), CD3+, CD4+, CD8+, and CD4+/CD8+ were observed before and after treatment in two groups.</p><p><b>RESULTS</b>As for improving clinical symptoms and signs, total effective rate was 84.29% (59/70) in the observation group and 55.56% (40/72) in the control group, which had statistical difference between two groups (P<0.01). As for regulating glycometabolism [(6.25 +/- 0.32) mmol/L vs (8.09 +/- 0.63) mmol/L], reducing UAER [(154.43 +/- 55.14) mg/24h vs (268.91 +/- 77.65) mg/24h], restraining over-expression of MCP-1 [(137.59 +/- 36.15) pg/mL vs (166.89 +/- 42.82) pg/mL], regulating level of oxidative stress, prohibiting oxidation of protein and adjusting quantity and activity of T lymphocyte subgroup, the observation group was superior to the control group (P< 0.05, P<0.01).</p><p><b>CONCLUSION</b>The regulating spleen-stomach needling is an effective method for treatment of DN, which cold improve glycometabolism disturbance-induced progressive kidney injury, recover glomerular filtration, reduce urinary albumin excretion rate, restrain overexpression of MCP-1, adjust level of oxidative stress, prohibit oxidation of protein, increase protectiveness of membrane, adjust quantity and activity abnormity of T lymphocyte subgroup, leading to repairing lymphocyte damage and improving immune expression to delay kidney damage.</p>