Evaluation of dietary quality among residents in Wenzhou City by diet balance index / 预防医学

Objective@#To evaluate the dietary quality of residents in Wenzhou City, Zhejiang Province, so as to provide the basis for future health education and nutrition intervention programs.@*Methods@#A stratified multi-stage random sampling method was used to select residents aged 18 years and older in 6 counties (cities, districts) of Wenzhou City as the study subjects, “24-hour dietary review for 3 consecutive days” was adopted to collect dietary intake, and the diet balance index (DBI_16) scoring method was applied to evaluate the dietary quality.@*Results@#This study analyzed the dietary quality of 406 residents in Wenzhou City, including 197 males (48.52%) and 209 females (51.48%). The majority of the residents were aged 18-44 years (254 residents, 62.56%). The median DBI total score was -31 (interquartile range, 8), and 404 residents had insufficient dietary intake, accounting for 99.51%. The median DBI positive score was 5 (interquartile range, 6), and 288 residents had appropriate dietary intake, accounting for 70.94%. The median DBI negative score was 37 (interquartile range, 6), and 210 residents had a high level of insufficient dietary intake, accounting for 51.72%. Five dietary patterns, namely A, B, C, E and F, were identified, with pattern B being the most dominant, accounting for 75.62% of the total (307 individuals). Patterns D, H, I and G were not observed.@*Conclusions@#The dietary quality of the residents surveyed indicates the existence of dietary imbalances, mainly manifesting as inadequate intake. It is recommended to strengthen nutritional and health guidance.

Experimental research progress in traditional Chinese medicine prevention and treatment of diabetic peripheral neuropathy based on autophagy / 中国中药杂志

Diabetic peripheral neuropathy(DPN) is a chronic complication resulted from peripheral nerve injury in the late stage of diabetes. It involves a variety of pathological changes such as oxidative stress, endoplasmic reticulum stress, neuroinflammation, and apoptosis of Schwann cells(SCs). DPN is the main factor leading to lower limb disability or amputation in diabetic patients, with high incidence, long disease course, and poor prognosis. The modern medicine treatment of DPN mainly focuses on controlling blood glucose and improving microcirculation and nerve nutrition, which can only mitigate the clinical symptoms and not fundamentally reverse the pathological changes of peripheral nerves. Autophagy is a self-clearing mechanism that maintains cellular homeostasis by removing excess metabolites. Traditional Chinese medicine(TCM), featuring the holistic concept and syndrome differentiation, can treat chronic diseases in a multi-target, multi-pathway, and wide-range manner. Modern studies have shown that the occurrence and development of DPN are related to a variety of pathological changes, and autophagy is a key mechanism associated with DPN. The environment with persistent high glucose can lead to the inhibition or over-activation of peripheral nerve cells, which causes irreversible damage of nerve cells and the occurrence and development of DPN. Therefore, restoring autophagy balance and reducing nerve damage is one of the key ways to treat DPN. The recent studies have confirmed that some active ingredients in traditional Chinese medicines and TCM compound prescriptions can inhibit the oxidative stress, endoplasmic reticulum stress, mitochondrial damage, inflammation, and apoptosis of SCs in DPN by regulating the autophagy pathway, thus playing a role in the prevention and treatment of DPN. However, the systematic induction in this field remains to be carried out. This paper reviewed the relevant literature, explained the mechanism of TCM in the prevention and treatment of DPN by regulating autophagy, and summarized the potential targets of TCM in the treatment of DPN, with a view to providing new ideas for clinical research and drug development.

Association between metabolically healthy obesity and incident risk of stroke in adult aged over 40 from rural Henan province / 中华预防医学杂志

Objective: To investigate the association between metabolically healthy obesity and the incident risk of stroke in people aged ≥40 years from rural areas of Henan Province. Methods: During 2007 to 2008, 20 194 residents aged ≥18 years were selected for baseline examination by random cluster sampling and 17 265 participants were followed up during 2013 to 2014. According to the aim of current study, a total of 11 864 eligible subjects were included in this post-hoc analysis. Depending on body mass index and metabolic status, subjects were divided into four groups: metabolically healthy normal weight, metabolically healthy obesity, metabolically abnormal normal weight and metabolically abnormal obesity. Multivariate logistic regression model was used to analyze the relationship between metabolically healthy obesity and the risk of stroke. Results: The median (Q1, Q3) age of study participants was 54(46, 61) years, and 4 526 participants were men. During the mean follow-up of 6 years, the cumulative incidence of stroke was 7.16%. The incidence of stroke in metabolically healthy normal weight, metabolically healthy obesity, metabolically abnormal normal weight, and metabolically abnormal obesity were 3.73%, 4.61%, 8.99% and 9.38%, respectively (χ²=117.458, P<0.001). After adjusting possible confounding factors, compared with metabolically healthy normal weight, the risk of stroke was significantly increased in the metabolically healthy obesity group, metabolically abnormal normal weight group and metabolically abnormal obesity group with the odds ratio (OR) and 95% confidence interval (CI) of 1.52(1.10-2.12), 2.11(1.61-2.77) and 2.78(2.18-3.55), respectively. Stratified analysis showed that the risk of stroke was significantly higher in metabolically healthy obesity people aged 40-59 years compared with metabolically healthy normal weight group (OR=2.12, 95%CI: 1.36-3.30). Conclusion: Metabolically healthy obesity, metabolically abnormal normal weight and metabolically abnormal obesity are positively associated with the risk of stroke.

The near-infrared dye IR-61 restores erectile function in a streptozotocin-induced diabetes model via mitochondrial protection / 亚洲男科学杂志(英文版)

This study aimed to evaluate the therapeutic effect of IR-61, a novel mitochondrial heptamethine cyanine dye with antioxidant effects, on diabetes mellitus-induced erectile dysfunction (DMED). Eight-week-old male Sprague-Dawley rats were intraperitoneally injected with streptozotocin (STZ) to induce type 1 diabetes. Eight weeks after STZ injection, all rats were divided into three groups: the control group, DM group, and DM + IR-61 group. In the DM + IR-61 group, the rats were administered IR-61 (1.6 mg kg

Epidemiology of myopia and unaided visual impairment of primary and secondary school students of Han and minorities in Mangshi City in Yunnan / 中国学校卫生

Objective@#To investigate the prevalence and associated factors of unaided visual impairment and myopia among primary and secondary school students in Yunnan Province, and to provide scientific basis for myopia prevention.@*Methods@#The study was conducted among primary and secondary school students in Mangshi, Yunnan Province from March to August, 2014. All the 7 681 subjects underwent detailed eye examinations and a questionnaire survey. Myopia was defined as spherical equivalent value of less than -0.5 diopters. Unaided visual impairment was analyzed on the basis of the better and the worse-seeing eye, respectively.@*Results@#The prevalence of myopia and high myopia were 39.1% and 0.6%. The prevalence of unaided visual impairment was 11.4% based on the worse-seeing eye. Refractive errors accounted for 87.3% of the participants with unaided visual impairment. Prevalence of myopia was higher in girls than in boys (χ2=29.74, P<0.01), but there was no gender difference in high myopia (P=0.19). The prevalence of myopia and high myopia increased significantly with increasing age (χ2=351.23, 22.56, P<0.01). Besides, prevalence of myopia was 63.7% in Dai nationality students and 36.6% in Yi nationality students (χ2=78.14, P<0.01), which was higher than other ethnic minorities. After adjusting for the effects of sex, age and ethnicity, the presence of myopia was associated with increasing height (OR=1.02, 95%CI=1.01-1.03), computer use (OR=1.17, 95%CI=1.03-1.32), having a myopic father (OR=1.56, 95%CI=1.24-1.94), having a myopic mother (OR=1.33, 95%CI=1.08-1.63) and more time reading(OR=1.18, 95%CI=1.09-1.28). High myopia was found to be more prevalent in children who had a myopic father (OR=3.98, 95%CI=1.72-9.22) and using computers (OR=2.31, 95%CI=1.17-4.57).@*Conclusion@#Myopia and unaided visual impairment is prevalent in school students in rural China (Yunnan), though the prevalence is relatively lower compared with other areas in China. Attention should be paid to the formulation and input of primary eye care policies.

High expression of ENA-78 in lymphatic epithelial cells associated with cholangiocarcinoma promotes lymphangiogenesis / 医学研究生学报

ObjectiveLymphatic epithelial cells (LECs) are important links involved in lymphatic metastasis in the microenvironment of cholangiocarcinoma. This study aims to detect the modulation of inflammatory factors and chemokines secreted by LECs after stimulation of cholangiocarcinoma cells, and observe the effects of highly expressed factors on lymphangiogenesis.MethodsThe culture medium of cholangiocarcinoma (RBE, HCCC9810), LECs stimulated by cholangiocarcinoma cell culture medium (CCM), and normal LECs were prepared. Inflammatory factors and chemokines in the culture medium were detected using protein chip. The experiments are divided into the following groups, including a blank control group, CCM group, CCM coupled with Anti-ENA-78 group, Anti-ENA-78 group, ENA-78 group, ENA-78 coupled with SB2252002, and SB225002 group. The relationship between the content of factor and time was investigated using ELISA, while the relation between target factors and lymphangiogenesis obtained by cell proliferation and tubule formation assay.ResultsWe found ENA-78, IP-10, GCP-2, MCP-2, MCP-3, MIP-3a, HCC-1, and Lymphotactin expression increased in LECs supernatant after CCM stimulation. However, I-TAC, MIP-1d, IL-10, MIG, PDGF-BB, and CXCL16 factors showed down-regulation. The secretion of ENA-78 in CCM was relatively low. By ELISA, we found that the ENA-78 protein in RBE-LECs and HCCC9810-LECs gradually increased over time, and reached the plateau phase at the point of 48h. The lymphatic tube forming ability of LECs cultured in CCM was significantly increased compared with that of the control group, and this ability could be partially weakened by ENA-78 neutralizing antibodies. In the exogenous ENA-78 protein group, the lymphatic tube formation ability was as well significantly increased compared with that in the control group, and this ability could be effectively blocked by the IL-8B inhibitor.ConclusionThe increased secretion ENA-78 of lymphatic epithelial cells induced by cholangiocarcinoma may play a role in promoting lymphangiogenesis through the IL-8B receptor.

High expression of ENA-78 in lymphatic epithelial cells associated with cholangiocarcinoma promotes lymphangiogenesis / 医学研究生学报

ObjectiveLymphatic epithelial cells (LECs) are important links involved in lymphatic metastasis in the microenvironment of cholangiocarcinoma. This study aims to detect the modulation of inflammatory factors and chemokines secreted by LECs after stimulation of cholangiocarcinoma cells, and observe the effects of highly expressed factors on lymphangiogenesis.MethodsThe culture medium of cholangiocarcinoma (RBE, HCCC9810), LECs stimulated by cholangiocarcinoma cell culture medium (CCM), and normal LECs were prepared. Inflammatory factors and chemokines in the culture medium were detected using protein chip. The experiments are divided into the following groups, including a blank control group, CCM group, CCM coupled with Anti-ENA-78 group, Anti-ENA-78 group, ENA-78 group, ENA-78 coupled with SB2252002, and SB225002 group. The relationship between the content of factor and time was investigated using ELISA, while the relation between target factors and lymphangiogenesis obtained by cell proliferation and tubule formation assay.ResultsWe found ENA-78, IP-10, GCP-2, MCP-2, MCP-3, MIP-3a, HCC-1, and Lymphotactin expression increased in LECs supernatant after CCM stimulation. However, I-TAC, MIP-1d, IL-10, MIG, PDGF-BB, and CXCL16 factors showed down-regulation. The secretion of ENA-78 in CCM was relatively low. By ELISA, we found that the ENA-78 protein in RBE-LECs and HCCC9810-LECs gradually increased over time, and reached the plateau phase at the point of 48h. The lymphatic tube forming ability of LECs cultured in CCM was significantly increased compared with that of the control group, and this ability could be partially weakened by ENA-78 neutralizing antibodies. In the exogenous ENA-78 protein group, the lymphatic tube formation ability was as well significantly increased compared with that in the control group, and this ability could be effectively blocked by the IL-8B inhibitor.ConclusionThe increased secretion ENA-78 of lymphatic epithelial cells induced by cholangiocarcinoma may play a role in promoting lymphangiogenesis through the IL-8B receptor.

Inductive effect of solamargine on the apoptosis of human esophageal cancer KYSE150 cells and its action mechanism / 医学研究生学报

Objective Solamargine (SM), with its anti-inflammatory and anti-tumor effects, inhibits the proliferation and promotes the apoptosis of various tumor cells. This study was to investigate the effects of SM on the proliferation and apoptosis of human esophageal cancer KYSE150 cells and its action mechanism. Methods We treated KYSE150 cells with SM at the concentrations of 0 (the blank control group), 2, 4, 6 and 8 μmol/L for 24 hours. Then, we observed the morphological changes of the cells under the inverted microscope, detected their proliferation and apoptosis by MTT assay and flow cytometry respectively, and determined the expressions of the classical NF-κB signaling pathway-related proteins NF-κB, p-NF-κB, IKKα, IKKβ, IkBα and p-IkBα) and apoptosis-related proteins Bax, caspase-3, cleaved caspase-3 and Bcl-2 in different groups of the cells by Western blot. Results Compared with the blank control, the inhibition rate of the proliferation of the KYSE150 cells in the 2, 4, 6 and 8 μmol/L SM groups was increased significantly in a concentration-dependent manner (0 vs [15.03 ± 0.15]%, [47.94 ± 1.74]%, [68.72 ± 0.47]% and [77.51 ± 1.70]%, P<0.05), and so was the apoptosis rate ([8.17 ± 0.51]% vs [14.50 ± 0.73]%, [18.57 ± 2.08]%, [65.10 ± 10.88]% and [81.55 ± 5.48]%, P<0.05). The expression of the apoptosis-related protein Bax in the SM treated cells was up-regulated, those of Bcl-2, IKKα, IKKβ and p-IkBα down-regulated, and the activity of caspase-3 and cleaved caspase-3 promoted, all in a concentration-dependent manner, with statistically significant differences between the blank control and the 4, 6 and 8 μmol/L SM groups (P<0.05). Statistically significant differences were also found in the expressions of NF-κB, p-NF-κB and IkBα between the blank control and the 6 and 8 μmol/L SM groups (P<0.05). Conclusion Solamargine can significantly inhibit the proliferation and promote the apoptosis of KYSE150 cells, probably by suppressing the classical NF-κB signaling pathway.

First line nucleos(t)ide analog monotherapy is more cost-effective than combination strategies in hepatitis B e antigen-positive chronic hepatitis B patients in China / 中华医学杂志(英文版)

Background@#Nucleos(t)ide analog (NA) in combination with peginterferon (PegIFN) therapy in patients with hepatitis B e antigen (HBeAg)-positive chronic hepatitis B (CHB) shows better effectiveness than NA monotherapy in hepatitis B surface antigen loss, termed "functional cure," based on previous published studies. However, it is not known which strategy is more cost-effective on functional cure. The aim of this study was to analyze the cost-effectiveness of first-line monotherapies and combination strategies in HBeAg-positive CHB patients in China from a social perspective.@*Methods@#A Markov model was developed with functional cure and other five states including CHB, compensated cirrhosis, decompensated cirrhosis, hepatocellular carcinoma, and death to assess the cost-effectiveness of seven representative treatment strategies. Entecavir (ETV) monotherapy and tenofovir disoproxil fumarate (TDF) monotherapy served as comparators, respectively.@*Results@#In the two base-case analysis, compared with ETV, ETV generated the highest costs with $44,210 and the highest quality-adjusted life-years (QALYs) with 16.78 years. Compared with TDF, treating CHB patients with ETV and NA - PegIFN strategies increased costs by $7639 and $6129, respectively, gaining incremental QALYs by 2.20 years and 1.66 years, respectively. The incremental cost-effectiveness ratios were $3472/QALY and $3692/QALY, respectively, which were less than one-time gross domestic product per capita. One-way sensitivity analysis and probabilistic sensitivity analyses showed the robustness of the results.@*Conclusion@#Among seven treatment strategies, first-line NA monotherapy may be more cost-effective than combination strategies in HBeAg-positive CHB patients in China.

First line nucleos(t)ide analog monotherapy is more cost-effective than combination strategies in hepatitis B e antigen-positive chronic hepatitis B patients in China / 中华医学杂志(英文版)

BACKGROUND@#Nucleos(t)ide analog (NA) in combination with peginterferon (PegIFN) therapy in patients with hepatitis B e antigen (HBeAg)-positive chronic hepatitis B (CHB) shows better effectiveness than NA monotherapy in hepatitis B surface antigen loss, termed "functional cure," based on previous published studies. However, it is not known which strategy is more cost-effective on functional cure. The aim of this study was to analyze the cost-effectiveness of first-line monotherapies and combination strategies in HBeAg-positive CHB patients in China from a social perspective.@*METHODS@#A Markov model was developed with functional cure and other five states including CHB, compensated cirrhosis, decompensated cirrhosis, hepatocellular carcinoma, and death to assess the cost-effectiveness of seven representative treatment strategies. Entecavir (ETV) monotherapy and tenofovir disoproxil fumarate (TDF) monotherapy served as comparators, respectively.@*RESULTS@#In the two base-case analysis, compared with ETV, ETV generated the highest costs with $44,210 and the highest quality-adjusted life-years (QALYs) with 16.78 years. Compared with TDF, treating CHB patients with ETV and NA - PegIFN strategies increased costs by $7639 and $6129, respectively, gaining incremental QALYs by 2.20 years and 1.66 years, respectively. The incremental cost-effectiveness ratios were $3472/QALY and $3692/QALY, respectively, which were less than one-time gross domestic product per capita. One-way sensitivity analysis and probabilistic sensitivity analyses showed the robustness of the results.@*CONCLUSION@#Among seven treatment strategies, first-line NA monotherapy may be more cost-effective than combination strategies in HBeAg-positive CHB patients in China.

CatSper in sperm hyperactivation and male infertility: Advances in studies / 中华男科学杂志

The CatSper channel is known as one of the most important Ca²⁺ channels on the cell membrane of mammalian sperm and plays a key role in the motility, hyperactivation and fertilization function of sperm. The CatSper protein, expressed exclusively in the principal piece of the sperm tail, is composed of CatSper1-4 and 5 auxiliary unitsβ,γ,δ and ε, and has an essential part in the functional and structural domains of Ca²⁺as well as in the spatiotemporal regulation of the P-Tyr protein, sperm hyperactivation, efficient sperm migration in the oviduct, egg penetration, and normal fertility. Recent studies show that functional deficiency of CatSper seriously affects sperm function,and the loss of any one of its 9 subunits may lead to male reproductive dysfunction. This paper outlines recent advances in the studies of the CatSperprotein, focusing on its expression, location, structure, and regulation,as well as itsinfluence on sperm hyperactivation and male reproduction.

Therapeutic effect of autologous platelet rich plasma combined with bone marrow mesenchymal stem cell transplantation on long shaft fracture bone nonunion / 中国组织工程研究

BACKGROUND:Autologous platelet rich plasma and bone marrow mesenchymal stem cells have certain effects on bone repair,but there are rare reports on the clinical treatment of long shaft fracture bone nonunion using autologous platelet rich plasma combined with bone marrow mesenchymal stem cell transplantation.OBJECTIVE:To investigate the therapeutic effect of autologous platelet rich plasma combined with bone marrow mesenchymal stem cell transplantation on long shaft fracture bone nonunion.METHODS:Forty-seven patients with long shaft fracture bone nonunion were randomly divided into two groups:monotherapy group (n=22) and combination group (n=25).In the monotherapy group,autologous bone marrow mesenchymal stem cell transplantation was performed in the bone nonunion site.In the combination group,autologous platelet rich plasma combined with bone marrow mesenchymal stem cell transplantation was implemented in the bone nonunion site.Callus score,clinical healing time,local complications and limb function grade were recorded and compared between the two groups.RESULTS AND CONCLUSION:The healing properties and limb function in the combination group were significantly superior to those in the monotherapy group [healing time:(4.2±1.5) vs.(5.6±1.1) months,P ＜ 0.05;healing rate:92％ vs.86％,P ＜ 0.05;callus score:2.74±0.36 vs.2.32±0.53,P ＜ 0.05;limb function recovery rate:77％ vs.84％,P ＜ 0.05].Complications like local skin redness or infection were not found in the two groups.In conclusion,both of the two methods can promote bone healing,but autologous platelet rich plasma combined with bone marrow mesenchymal stem cell transplantation has a better clinical effect on bone healing.

Effect of Tibetan medicine zuotai on the activity, protein and mRNA expression of CYP1A2 and NAT2 / 药学学报

To study the effect of Tibetan medicine Zuotai on the activity, protein and mRNA expression of CYP1A2 and NAT2, three different doses (1.2, 3.8 and 12 mg x kg(-1)) of Zuotai were administrated orally to rats once a day or once daily for twelve days, separately. Rats were administrated orally caffeine (CF) on the second day after Zuotai administration, and the urine concentration of CF metabolite 5-acetylamino-6-formylamino-3-methyl-uracil (AFMU), 1-methyluric acid (1U), 1-methylxanthine (1X), 1, 7-dimethylxanthine (17U) at 5 h after study drug administration was determined by RP-HPLC. The activity of CYP1A2 and NAT2 was evaluated by the ratio of metabolites (AFMU+1X+1U)/17U and the ratio of AFMU/(AFMU+1X+1U), respectively. The protein and mRNA expression of CYP1A2 and NAT2 were determined by ELISA and RT-PCR method, respectively. After single administration of Zuotai 3.8 mg x kg(-1) and repeated administration of Zuotai 3.8 and 12 mg x kg(-1), the activity of CYP1A2 and NAT2 decreased significantly compared with control group and there was no significant difference between other dose group and control group. The protein expression of CYP1A2 was significant lower than that in control group after repeated administration of Zuotai 12 mg x kg(-1), and the mRNA expression of CYP1A2 decreased significantly compared with that of control group after single administration of Zuotai 3.8 mg x kg(-1) and repeated admistration of Zuotai 12 mg x kg(-1), separately. The protein expression of NAT2 decreased significantly compared with that of control group after single and repeated administration of Zuotai 3.8 mg x kg(-1), respectively, and the mRNA expression of CYP1A2 decreased significantly compared with control group after single administration of Zuotai 3.8 mg x kg(-1). This study found that Tibetan medicine Zuotai had significant effect on the activity, protein and mRNA expression of CYP1A2 and NAT2.

Relationship between thyroid-stimulating hormone and blood pressure in the middle-aged and elderly population

<p><b>INTRODUCTION</b>Hypothyroidism and subclinical hypothyroidism may be associated with hypertension and metabolic syndrome. The aim of this study was to investigate the relationship between thyroid-stimulating hormone (TSH) and blood pressure, as well as the relationship between thyroid function and insulin resistance in middle-aged and elderly Chinese.</p><p><b>METHODS</b>This was a cross-sectional, community-based study. Serum TSH, fasting glucose and insulin were measured in 2,988 subjects aged 35-80 years. Logistic regression analysis was used to identify the risk factors for hypertension. Analysis of variance and multiple linear regression analysis were performed to characterise the relationship among TSH, insulin resistance and blood pressure.</p><p><b>RESULTS</b>Higher serum TSH concentration was found to be an independent risk factor for hypertension in females (odds ratio 1.4, 95% confidence interval 1.02-1.93; p-value = 0.039). The female group with subclinical hypothyroidism and high normal TSH (2.5-4.8 mIU/L) were more susceptible to high blood pressure than those with low normal TSH (0.3-2.5 mIU/L) (p-value < 0.05). After adjustment for waist-hip ratio and body mass index, neither the correlation between blood pressure and homeostasis model assessment of insulin resistance (HOMA-IR) nor the correlation between TSH and HOMA-IR were found to be significant in this study.</p><p><b>CONCLUSION</b>This study provides evidence that both subclinical hypothyroidism and high normal TSH are independent risk factors for hypertension in middle-aged and elderly Chinese women.</p>

Modified super-long down-regulation protocol improves fertilization and pregnancy in patients with poor ovarian responses / 中华医学杂志(英文版)

<p><b>BACKGROUND</b>The successful end-point of in vitro fertilization (IVF) treatment is for a woman to give live birth. This outcome is based on various factors including adequate number of retrieved eggs. Failure to recruit adequate follicles, from which the eggs are retrieved, is called a "poor response". How to improve the clinical pregnancy rates of poor responders was one of the tough problems for IVF.</p><p><b>METHODS</b>The study involved 51 patients who responded poorly to high dose gonadotropin treatment in their previous cycles at our reproductive center, between April 2010 and February 2012. The previous cycle (group A) received routine long protocol; the subsequent cycle (group B) received modified super-long down-regulation protocol. The primary outcome of the study was the number of oocytes fertilized. The increase in the pregnancy rate was the secondary outcome. Differences between the groups were assessed by using Student's t test and c(2) test where appropriate.</p><p><b>RESULTS</b>The patients' average age was (36.64 ± 3.85) years. The mean duration of ovarian stimulation cycles of the group A patients was longer than those of the group B patients. The total dose of follicle-stimulating hormone (FSH) was significantly lower in the subsequent cycle. The peak value of serum estradiol on human chorionic gonadotrophin (hCG) day was lower in group A as compared with group B. The number of metaphase II oocytes recovered was significantly higher in group B. The cleavage rate in group A was significantly lower than in group B, 49 patients in group B reached embryo transfer stage, while 46 patients in group A reached this stage. Patients in group B received significantly more embryos per transfer as compared with group A. More pregnancies and more clinical pregnancies with fetal heart activity were achieved in group B.</p><p><b>CONCLUSIONS</b>This comparative trial shows that poor responder women undergoing repeated assisted reproduction treatment using modified super-long down-regulation protocol achieve more oocytes, leading to higher fertilization rate, compared to women receiving routine long protocol. Our study also showed that clinical pregnancy rate was significantly improved.</p>

Establishment of a mouse model of ovarian oxidative stress / 南方医科大学学报

<p><b>OBJECTIVE</b>To evaluate the feasibility of establishing a mouse model of ovarian oxidative stress by intraperitoneal injections of arsenic sodium.</p><p><b>METHODS</b>Twenty adult female Kunming mice were randomized equally into the normal control group and ovarian oxidative stress model group for intraperitoneal injections of 0.5 ml distilled water and 8 mg/kg arsenic sodium solution every other day, respectively. After 8 injections, the mice were sacrificed for histological observation of the ovarian sections and enzyme-linked immunosorbent assay (ELISA) of serum estradiol (E(2)) and pregnenedione (P) levels ande contents of reactive oxygen species (ROS) , malondialdehyde (MDA), superoxide dismutase (SOD) and glutathione peroxidase (GSH-Px) in the ovary homogenate.</p><p><b>RESULTS</b>Numerous atretic follicles were found in the ovaries of mice in the model group with obviously reduced growing follicles. Compared with those in the normal control group, the contents of ROS and MDA increased and SOD and GSH-Px levels in the ovarian homogenate decreased significantly in the model group (P<0.05).</p><p><b>CONCLUSION</b>A mouse model of ovarian oxidative stress can be established by intraperitoneal injections of arsenic sodium.</p>

Aspirin response and related factors in aged patients / 中华心血管病杂志

<p><b>OBJECTIVE</b>To explore clinical and laboratory factors associated aspirin response, and the association between gastrointestinal bleeding and aspirin response in aged patients.</p><p><b>METHODS</b>A total of 136 patients aged 60 and over [mean age (74.9 ± 7.0) years] with ischemic heart disease and at high risk for ischemic heart disease were included. Arachidonic acid induced platelet aggregation (AA-Ag) was measured before and at 7(th) day after taking aspirin (100 mg/d). Patients were followed for 6 months and incidence of gastrointestinal bleeding was obtained.</p><p><b>RESULTS</b>Post-treatment AA-Ag was significantly reduced compared to baseline (13.29% ± 5.52% vs. 73.20% ± 7.32%, P < 0.05). A heterogeneous distributed post-treatment AA-Ag was observed (range 0.42% to 30.50%). Post-treatment AA-Ag was positively correlated with baseline AA-Ag (r = 0.493, P < 0.01). The level of post-treatment AA-Ag was significantly higher in the fourth quartile group at baseline than in the others quartile groups at baseline. Patients aged 80 years and over had significantly lower post-treatment AA-Ag (10.25% ± 4.68%) compared with patients of 60 - 69 years (13.96% ± 5.20%) and of 70 - 79 years (13.73% ± 5.48%, all P < 0.01). The incidence of patients in the lowest quartile of post-treatment AA-Ag was significantly higher in patients ≥ 80 years (38.24%) than in patients of 60 - 69 years (11.1%) and of 70 - 79 years (24.0%). Multiple variable analysis revealed post-treatment AA-Ag was significantly influenced by baseline AA-Ag, ≥ 80 years old, diabetes mellitus and acute coronary syndrome. We observed 4 (2.9%) mild gastrointestinal bleeding during follow up. Post-treatment AA-Ag was in the lowest quartile in 3 patients with mild gastrointestinal bleeding.</p><p><b>CONCLUSIONS</b>Increased baseline platelet reactivity as well as diabetes mellitus and acute coronary syndrome are associated with low aspirin response in the aged patients. Aspirin response is significantly higher in very old patients.</p>

Clinical study on the treatment of knee osteoarthritis of Shen-Sui insufficiency syndrome type by electroacupuncture / 中国结合医学杂志

<p><b>OBJECTIVE</b>To study the clinical effificacy of electroacupuncture (EA) on treating knee osteoarthritis (KOA) of Shen ()-Sui () insuffificiency (SSI) syndrome type.</p><p><b>METHODS</b>A total of 245 patients (279 knees) of KOA-SSI were randomly assigned to two groups by lottery: 141 knees in the treatment group and 138 knees in the control group. The treatment group was managed with EA at the dominant points of Neixiyan (Ex-LE4) and Waixiyan (Ex-LE5) as well as the conjugate points of Xuanzhong (GB39) and Taixi (KI3) for 30 min, once a day, with 15 days as one course; 2 courses were applied with a 5-day interval in between. The control group was treated with intra-articular injection of 2 mL hyaluronic acid into the affected joint every 7 days for 5 times in total. The clinical effects on the patients in different stages were observed, and their symptom scores of knee and contents of cytokines, including interleukin-1 (IL-1), interleukin-6 (IL-6), tumor necrosis factor-alpha (TNF-alpha), prostaglandin E(2alpha) (PGE(2alpha)) and matrix metalloproteinases-3 (MMP-3), in the knee joint fluid were measured before and after treatment.</p><p><b>RESULTS</b>The study was completed in 235 patients (263 knees); four patients (7 knees) in the treatment group and six patients (9 knees) in the control group dropped out. Comparison of therapeutic effects (excellent and effective rates) between the two groups showed insignificant differences (P>0.05). Symptom scores of knee and contents of cytokines in the knee flfluid after treatment were lowered signifificantly in the patients of stage I-III in both groups (P<0.05 or P<0.01). However, the lowering of the total symptom score of knee in the patients of stage III in the treatment group was more signifificant (P<0.05).</p><p><b>CONCLUSIONS</b>EA could effectively alleviate the clinical symptoms in KOA patients of stage III, showing an effect superior to that of hyaluronic acid. EA also shows action in suppressing the secretion of IL-1, IL-6, TNF-alpha, PGE(2alpha) and MMP-3 in the knee flfluid.</p>

Primary immunodeficiency diseases in children: clinical analysis of 35 cases / 中国当代儿科杂志

<p><b>OBJECTIVE</b>To summarize clinical features of primary immunodeficiency diseases (PID) in children.</p><p><b>METHODS</b>The clinical data of 35 children with PID from September 2005 to December 2008 were studied retrospectively, including illness history, birth history, family history, clinical manifestations, laboratory findings, diagnosis, treatment and outcome.</p><p><b>RESULTS</b>Of the 35 cases of PID, 6 cases were confirmed with combined T- and B-cell immunodeficiency, 4 cases with X-linked agammaglobulinaemia, 22 cases with selective IgG subclass deficiency, 1 case with common variable immunodeficiency and 2 cases with chronic granulomatous disease. All cases had fever and recurrent infections. Respiratory and digestive tract infections were the most common clinical manifestation. Some of the PID cases lagged behind the normal children of the same age in growth and development. Human gamma-globulin transfusion and anti-infection therapy were administered. Two patients discontinued the therapy, one was transferred to the other hospital and the other 32 patients were discharged following improvement in clinical symptoms.</p><p><b>CONCLUSIONS</b>PID should be considered in children who suffer from recurrent infections and autoimmune diseases or do not respond to long-term use of antibiotics. Immunologic tests should be done as early as possible for the children.</p>

Antimicrobial activity and chemical differences between the two chemotypes of rhubarbs / 药学学报

Through our pre-investigation and literature analysis, it was found that rhubarb could be categorized into two types, chrysophanol-type and rhein-type, based on the proportion of the two constituents in the total content of anthraquinones after acid hydrolysis. In this paper, the antimicrobial activities of chrysophanol-type and rhein-type rhubarbs against Staphylococcus aureus were compared with microcalorimetric analysis, in order to illustrate the bioactive differentiability between the two chemotypes. For the aim to display the distinction of chrysophanol and rhein percentage in total anthraquinones, the sampling volume was regulated to make the total anthraquinones equivalent, thus, the antimicrobial difference was only attributed to the difference of chemotypes. The results indicated that the antimicrobial difference between the two chemotypes was confirmable labeled at the biothermokinetic parameters of S. aureus growth affected by the rhubarb samples. The growth rate constant (k1) of the first exponential phase for the growth of S. aureus affected by the rhein-type rhubarb was significantly lower than that of chrysophanol-type (P<0.01), which suggested stronger antimicrobial activity of rhein-type rhubarb than that of chrysophanol-type. However, the antimicrobial activities of rhein-type rhubarbs were not positively correlated to the contents of rhein. It suggested that the antimicrobial activity of rhubarb might be related to some unknown components which were of same accumulating pattern of rhein. The findings in present study provided some experimental evidence on categorizing rhubarb into two chemotypes through the difference of antimicrobial activity on S. aureus by microcalorimetric analysis and, further, offered references to revision of the commercial specification of rhubarb from chemical view.