Short-term efficacy of empagliflozin in children with glycogen storage disease type Ⅰb / 中华儿科杂志

Objective: To analyze the short-time efficacy of empagliflozin in the treatment of glycogen storage disease type Ⅰb (GSD Ⅰb). Methods: In this prospective open-label single-arm study, the data of 4 patients were collected from the pediatric department in Peking Union Medical College Hospital from December 2020 to December 2022. All of them were diagnosed by gene sequencing and had neutropenia. These patients received empagliflozin treatment. Their clinical symptoms such as height and weight increase, abdominal pain, diarrhea, oral ulcer, infection times, and drug applications were recorded at 2 weeks, 1 month, 2 months, 3 months, 6 months, 9 months, 12 months, and 15 months after treatment to assess the therapeutic effect. The liquid chromatography-tandem mass spectrometry method was used to monitor the changes in 1, 5-anhydroglucitol (1, 5AG) concentration in plasma. At the same time, adverse reactions such as hypoglycemia and urinary tract infection were closely followed up and monitored. Results: The 4 patients with GSD Ⅰb were 15, 14, 4 and 14 years old, respectively at the beginning of empagliflozin treatment, and were followed up for 15, 15, 12 and 6 months, respectively. Maintenance dose range of empagliflozin was 0.24-0.39 mg/(kg·d). The frequency of diarrhea and abdominal pain decreased in cases 2, 3, and 4 at 1, 2 and 3 months of treatment, respectively. Their height and weight increased at different degrees.The absolute count of neutrophils increased from 0.84×109, 0.50×109, 0.48×109, 0.48×109/L to 1.48×109, 3.04×109, 1.10×109, 0.73×109/L, respectively. Granulocyte colony-stimulating factor was gradually reduced in 1 patients and stopped in 3 patient. Plasma 1, 5 AG levels in 2 children were significantly decreased after administration of empagliflozin (from 46.3 mg/L to 9.6 mg/L in case 2, and from 56.1 mg/L to 15.0 mg/L in case 3). All 4 patients had no adverse reactions such as hypoglycemia, abnormal liver or kidney function, or urinary system infection. Conclusion: In short-term observation, empagliflozin can improve the symptoms of GSD Ⅰb oral ulcers, abdominal pain, diarrhea, and recurrent infection, also can alleviate neutropenia and decrease 1, 5AG concentration in plasma, with favorable safety.

Two new isoquinoline alkaloids from Corydalis hendersonii / 中国中药杂志

Corydalis hendersonii(CH) is a Tibetan folk medicine with the functions of clearing heat, detoxifying, cooling blood, checking diarrhea, and lowering blood pressure. It is often used to treat high altitude polycythemia, vasculitis, peptic ulcer, and diarrhea. Nine compounds were separated from the ethanol extract of CH by silica gel, ODS, Sephadex LH-20 chromatography and semi-preparative HPLC. Their structures were identified as hendersine H(1),hendersine I(2), dehydrocheilanthifoline(3), protopine(4), izmirine(5), 6,7-methylenedioxy-1(2H)-isoquinolinone(6), icariside D_2(7), ethyl 4-(β-D-glucopyranosyloxy)-3-methoxybenzoate(8), 3-hydroxy-4-methoxybenzoic acid(9), respectively, by the spectroscopic data analysis and comparison with those in the literature. Among them, compounds 1 and 2 are new isoquinoline alkaloids, and compounds 7-9 are reported the first time for Corydalis. The hypoglycemic model of H9c2 cardiomyocytes and the inflammatory model of H9c2 cardiomyocytes induced by conditional supernatant were employed to determine the activities of the above compounds. The results showed that 20 μmol·L~(-1) compound 1 had a protective effect on H9c2 cardiomyocytes and 10 μmol·L~(-1) compounds 4 and 5 inhibited H9c2 cardiomyocyte inflammation induced by conditional supernatant.

Network pharmacology study of Tibetan medicine Corydalis Herba against acute myocardial ischemia / 中国中药杂志

In this study, the compound search was completed through SciFinder and CNKI databases, and the drug-like properties were screened in FAFdrugs4 and SEA Search Server databases. In addition, based on the target sets related to acute myocardial ischemia(AMI) searched in disease target databases such as OMIM database, GeneCards database and DrugBank, a network diagram of chemical component-target-pathway-disease was established via Cytoscape to predict the potential active components of Corydalis Herba, a traditional Tibetan herbal medicine which derived from the aerial parts of Corydalis hendersonii and C. mucronifera against AMI. A protein-protein interaction(PPI) network was constructed through the STRING database and the core targets in the network were predicted. And the enrichment analyses of core targets were completed by DAVID database and R software. Furthermore, a molecular docking method was used to verify the binding of the components with core targets using softwares such as Autodock Vina. The present results showed that there were 60 compounds related to AMI in Corydalis Herba, involving 73 potential targets. The GO functional enrichment analysis obtained 282 biological processes(BP), 49 cell components(CC) and 78 molecular functions(MF). KEGG was enriched into 85 pathways, including alcoholism pathway, endocrine resistance pathway, calcium signaling pathway, cAMP signaling pathway, vascular endothelial growth factor signaling pathway and adrenergic signaling transduction pathway of myocardial cells. The results of network topology analysis showed that the key components of anti-AMI of Corydalis Herba might be tetrahydropalmatine, etrahydrocolumbamine, N-trans-feruloyloctopamine, N-cis-p-coumaroyloctopamine, N-trans-p-coumaroylnoradrenline and N-trans-p-coumaroyloctopamine, and their core targets might be CDH23, SCN4 B and NFASC. The results of molecular docking showed that the key components of Corydalis Herba had stable binding activity with the core targets. This study provides reference for further elucidation of the pharmacological effects of Corydalis Herba against AMI, subsequent clinical application, and development.

Research progress on in vitro models of cardiomyocyte injury / 中国中药杂志

Cardiovascular diseases seriously endanger human health and life. The accompanying myocardial injury has been a focus of attention in society. Chinese medicine,serving as a natural and precious reservoir for the research and development of new drugs,is advantageous in resisting myocardial injury due to its multi-component,multi-pathway,and multi-target characteristics. In recent years,with the extensive application of culture method for isolated cardiomyocytes,a cost-effective,controllable in vitro model of cardiomyocyte injury with uniform samples is becoming a key tool for mechanism research on cardiomyocyte injury and drug development.A good in vitro model can reduce experimental and manpower cost,and also accurately stimulate clinical changes to reveal the mechanism. Therefore,the selection and establishment of in vitro model are crucial for the in-depth research. This study summarized the modeling principles,evaluation indicators,and application of more than ten models reflecting different clinical conditions,such as injuries induced by hypoxia-reoxygenation,hypertrophy,oxidative stress,inflammation,internal environmental disturbance,and toxicity. Furthermore,we analyzed advantages and technical difficulties,aiming to provide a reference for in-depth research on myocardial injury mechanism and drug development.

Effect of total phenolic part of Rhus chinensis against myocardial ischemia in mice / 中国中药杂志

Rhus chinensis is an important resource plant. The aqueous extract of R. chinensis roots or stems was to produce Shuguantong Syrup, which is mainly used for the treatment of coronary heart disease and angina pectoris with definite curative effect. On this basis, the crude phenolic part of R. chinensis prepared by macroporous resin was evaluated for the cardio protective effect against myocardial ischemia in mice. The results showed that the phenolic part group with oral administration at the dosages of 190.8-381.6 mg·kg~(-1), compared with the model group, reduced the values of left ventricular end systolic diameter(LVEDs) and the left ventricular end diastolic diameter(LVEDd), and increased the cardiac ejection fraction(EF) and left ventricular fractional shortening(FS) rate, which could effectively improve cardiac function and exert its anti-myocardial ischemia effect, and reduce the rising levels of creatine kinase isoenzyme(CK-MB) and lactate dehydrogenase(LDH) in serum. HE staining showed that the phenolic part group reduced the infiltration of myocardial inflammatory cells and alleviated the degree of myocardial fibrosis and collagen deposition. TUNEL staining showed that the blue-green fluorescence of the phenolic part group decreased successively, and the degree of myocardial cell apoptosis was reduced. Immunohistochemical staining suggested that it could reduce the number of positive cells for p53 protein expression and significantly improve myocardial cell damage. All above data suggested that the phenolic part group had an anti-mycardial ischemis effect. Related mechanism studies revealed that the crude phenolic part could regulate the expressions of the p53 gene(p53), Bcl-2-associated X protein(Bax), B lymphoma-2 gene(Bcl-2), and caspase-3 protein(caspase-3) in myocardial tissue, suggesting that it could reduce cardiac remodeling and myocardial ischemic damage, and improve cardiac function by inhibiting myocardial apoptosis.This research laid a foundation for the elucidation of the pharmacological ingredients R. chinensis.

Advances on anti-tumor mechanisms of zerumbone / 中国中药杂志

Zerumbone(ZER), one of humulane-type sesquiterpenoids, showed its unique advantage against tumor activities. The main underlying mechanisms include inhibiting the growth and proliferation of cancer cells, inducing apoptosis of cancer cells and differentiation of cancer cells, regulating immune function, inhibiting invasion and metastasis of cancer cells, and reversing multidrug resistance of cancer cells. Studies on ZER focusing its cytotoxic or anti-tumor is one of hot topic. Currently, with the increasing studies on ZER, the clarified mechanisms are getting rich. The present paper describes a summary of its anti-tumor mechanism of action and helps to provide significant reference to more in-depth research.

Research Process on Pharmacological Effects and Clinical Applications of Commonly Used Medicinal Plants of Genus Ilex / 中国实验方剂学杂志

Four commonly used medicinal plants of genus Ilex, including I. pubescens, I. asprella, I. rotunda, and I. latifolia, have been extensively used in clinic. The Ilex plants contain triterpenes and their glycosides, flavones, phenols and other compositions, and their have the pharmacological activities of anti-inflammatory, antibacterial, antithrombosis, cardiovascular and cerebrovascular protection, etc. Among them, I. pubescens has significant pharmacological activities in cardiovascular and cerebrovascular diseases, but there are few studies on clinical application. There are a few literature reports on the anti-inflammatory, lowering blood lipids, anti-oxidation, anti-bacterial and anti-viral activities of I. asprella, which is clinically used in the treatment of upper respiratory diseases and infectious diseases. I. rotunda has strong activities of antithrombosis and anti-inflammatory, it is clinically used for the treatment of chronic pelvic inflammatory disease. I. latifolia shows activities of hypolipidemic, antitumor, antibacterial and antioxidant, and its leaves are often used in the treatment of hypertension. This review summarized the research progress on the pharmacological effects and clinical applications of commonly used medicinal plants of this genus in recent years, in order to provide basis for their clinical applications, and provide useful reference for the further development of the research direction and the development of medicines and health products.

Correlation Between RhoA Gene in Wnt/PCP Signaling Pathway and Traditional Chinese Medicine Syndrome of AECOPD / 中国实验方剂学杂志

Objective: To investigate the correlation between Ras homolog gene family member A (RhoA) gene in Wnt/PCP signaling pathway and acute exacerbation chronic obstructive pulmonary disease (AECOPD) traditional Chinese medicine(TCM)syndrome, attempting to provide an objective standard for the diagnosis of AECOPD TCM syndrome. Method: The 100 AECOPD patients were collected and divided into 5 groups:phlegm turbid obstructing lung syndrome,, phlegm-heat obstructing lung syndrome, syndrome of orifices confused by phlegm, deficiency of pulmonary and renal Qi, and edema due to yang deficiency, with 20 people in each group. 15 normal people were selected as a normal control group. All patients received fasting hemospasia, using a kit to extract blood total RibonucleicA(RNA) according to instructions. Real-time quantitative polymerase chain reaction (Real-time PCR) was adopted to detect the mRNA expression of RhoA gene in blood of patients with AECOPD TCM syndrome, and to explore the correlation. Result: There was no difference between phlegm-heat obstructing lung syndrome group and syndrome of orifices confused by phlegm group. The mRNA expression of RhoA gene in phlegm turbid obstructing lung syndrome group, phlegm-heat obstructing lung syndrome group, syndrome of orifices confused by phlegm group, deficiency of pulmonary and renal Qi group, and edema due to Yang deficiency group were significantly higher than that in normal group (PConclusion: The significant difference in mRNA relative expression of RhoA gene in Wnt/PCP signaling pathway among the five AECOPD TCM syndrome groups may provide some objective diagnostic criteria for AECOPD TCM syndromes and reveal their disease severity.

Advances on network pharmacology in ethnomedicine research / 中国中药杂志

Ethnomedicine is the precious wealth left by ethnic minorities in their struggle against diseases. It is similar to traditional Chinese medicine in a narrow sense and has the characteristics of multi-component,multi-target and multi-channel synergy. Under the guidance of the theory of ethnomedicine,the combination of ethnomedicine and network pharmacology will help to understand the essence of the prevention and treatment of ethnomedicines in a dynamic and holistic manner. This paper reviews the research progress of network pharmacology applied in ethnomedicine,analyses the problems and challenges existing in the application of network pharmacology in ethnomedicine research at present,such as inaccurate data and information,lack of network analysis platform for effective analysis of dose-effect relationship of chemical constituents and weak basic research of ethnomedicine,and puts forward corresponding prospects.

Analgesic and sedative effects of Mongolian medicine Syringa pinnatifolia / 中国中药杂志

The peeled root,stem or twig of Syringa pinnatifolia is a representative Mongolian folk medicine with the effects of antidepression and pain relief. It has been used for the treatments of heart tingling,heart palpitations,upset,insomnia and other symptoms. Inspired by Mongolian medical theory and clinical practices,this study evaluated the analgesic effect of S. pinnatifolia ethanol extract( T) through three analgesic models including acetic acid writhing test,formalin test,and hot plate test,and the sedative effect of T was evaluated by locomotor activity and synergistic sleeping experiments,and furthermore the effects of T on the GABAergic nervous system were investigated by ELISA,immunohistochemistry,Western blot,and PCR methods. The results showed that T can significantly reduce the number of writhing,the time of paw licking and extend the thermal threshold of mice,suggesting the analgesic effect of T.T also can indicate its sedative effect by reducing the number of activities,decreasing latency of sleeping and extending sleeping time of mice. ELISA results showed that T can increase the content of GABA/Glu in rat cortex,hippocampus,and hypothalamus,and the most significant increase in hypothalamus. The immunohistochemistry and Western blot results showed that T can up-regulate the expression of GAD67 protein in hypothalamus,and the PCR results showed that T can up-regulate the expression of GABAA Rα1,α2,α3,α5,β1-3,γ1-3 genes,suggesting a sedative effect through the GABAergic nervous system. In conclusion,this study shed insight into the theoretical basis and clinical application of S. pinnatifolia,and also provides inspiration for subsequent development and application.

Overexpression of YOD1 Promotes the Migration of Human Oral Keratinocytes by Enhancing TGF-β3 Signaling / 生物医学与环境科学（英文）

<p><b>OBJECTIVE</b>To investigate the effects of YOD1 overexpression on the proliferation and migration of human oral keratinocytes (HOKs), and to clarify whether the mechanisms involve transforming growth factor-β (TGF-β) signaling.</p><p><b>METHODS</b>HOKs were transfected with the plasmid pEGFP-N3-YOD1 containing YOD1. The mRNA levels of YOD1 and TGF-β were determined by qPCR. The protein expressions of YOD1, TGF-β, Smad2/3, Smad4, and phospho-Smad2/3 were determined by western blotting. Cell proliferation and migration were evaluated by Cell Counting Kit-8 assay and wound healing assay, respectively.</p><p><b>RESULTS</b>The mRNA and protein levels of YOD1 were higher in HOKs transfected with YOD1. YOD1 overexpression significantly enhanced the migration of HOKs. The mRNA and protein levels of TGF-β3 were increased by YOD1 overexpression. HOKs transfected with YOD1 exhibited increased phospho-Smad2/3 levels.</p><p><b>CONCLUSION</b>YOD1 overexpression enhances cell migration by promoting TGF-β3 signaling which may play an important role in lip and palate formation. YOD1 mutation may contribute to aberrant TGF-β3 signaling associated with decreased cell migration resulting in NSCLP.</p>

Evaluation of the New Automatic Mycob.T Stainer and Scanner for Detecting Acid-fast Bacilli in China / 生物医学与环境科学（英文）

<p><b>OBJECTIVE</b>To validate the performance of Mycob. T Stainer and Scanner (MTSS) for detecting acid-fast bacilli (AFB).</p><p><b>METHODS</b>A total of 3,816 sputum samples from 1,515 tuberculosis (TB) suspects were tested at the Anhui Provincial Chest Hospital and the Linyi People's Hospital from April-August, 2016. Each specimen was placed on two smear slides. One slide was stained by the ziehl-neelsen (ZN) method to be read by conventional microscopy (CM). The other slide was stained and scanned by MTSS. All specimens were decontaminated with 4% NaOH, and then inoculated into solid culture. The performance of MTSS was assessed.</p><p><b>RESULTS</b>MTSS produced higher average positivity rate (27.96%) as compared with the CM (26.83%). The overall sensitivity and specificity of MTSS were 78.9% and 93.9%, respectively. The sensitivity and specificity of CM was 77.4% and 95.0%, respectively.</p><p><b>CONCLUSION</b>MTSS exhibited a favorable performance in the detection of AFB. It may be an alternative to CM for screening TB.</p>

The effect of pre-pregnancy weight and the increase of gestational weight on fetal growth restriction: a cohort study / 中华预防医学杂志

Objective@#To investigate the effect of pre-pregnancy weight and the increase of gestational weight on fetal growth restriction.@*Methods@#From May 2013 to September 2014, a total of 3 474 pregnant women who took their first antenatal care and willing to undergo their prenatal care and delivery in Ma 'anshan Maternity and Child Care Centers were recruited in the cohort study. Excluding subjects without weight data before delivery (n=54), pregnancy termination (n=162), twins live births (n=39), without fetal birth weight data (n=7), 3 212 maternal-singleton pairs were enrolled for the final data analysis. Demographic information of pregnant woman, pregnancy history, disease history, height and weight were collected. In the 24th-28th, 32nd-36th gestational week and childbirth, three follow-up visits were undertaken to collect data of pregnancy weight, pregnancy vomiting, gestational hypertension, gestational diabetes mellitus, newborn gender and birth weight. χ2 test was used to compare the detection rate of fetal growth restriction in different groups. Multivariate unconditional logistic regression model and spreadsheet were used to analyze the independent and interaction effect of pre-pregnancy weight and the increase of gestational weight on fetal growth restriction.@*Results@#The incidence of fetal growth restriction was 9.7%(311/3 212). The incidence of fetal growth restriction in pre-pregnancy underweight group was 14.9% (90/603), higher than that in normal pre-pregnancy weight group (8.7% (194/2 226)) (χ2=24.37, P<0.001). The incidence of fetal growth restriction in inadequate increase of gestational weight group was 17.9% (50/279), higher than the appropriate increase of weight group (11.8% (110/932)) (χ2=36.89, P<0.001). Multivariate unconditional logistic regression analysis showed that compared with normal pre-pregnancy weight group, pre-pregnancy underweightwas a risk factor for fetal growth restriction, with RR (95%CI) at 1.76 (1.34-2.32); Compared with the appropriate increase of gestational weight group, inadequate weight increase during pregnancy was a risk factor for fetal growth restriction, with the RR (95%CI) at 1.70 (1.17-2.48). No additive model interaction [relative excess risk of interaction, attributable proportions of interaction, the synergy index and their 95%CI were 0.75 (-2.14-3.63), 0.21 (-0.43-0.86) and 1.43 (0.45-4.53), respectively] or multiplication model interaction (RR (95%CI): 1.00 (0.44-2.29)) existed between pre-pregnancy underweight and inadequate increase of gestational weight on fetal growth restriction.@*Conclusion@#Pre-pregnancy underweight and inadequate increase of gestational weight would increase the risk of fetal growth restriction without interaction.

Relations between hypertensive disorders in pregnancy and subsequent risk of early-term birth:a birth cohort study / 中华流行病学杂志

Objective To evaluate the relations between hypertensive disorders (HDP) in pregnancy and early-term birth.Methods A total of 3 474 pregnant women were consecutively recruited.Demographic information was collected in early pregnancy.HDP was diagnosed in the first,second and third trimesters,respectively.On the basis of precise evaluation on gestation age,early-term birth was defined as gestational age of 37-38 weeks + 6 days.Logistic regression models were conducted to examine the associations between HDP and early-term birth.Results The current study included 3 260 pregnant women,with the rates of HDP,pregnancy-induced hypertension syndrome and pre-eclampsia as 6.0％ (n=194),4.2％ (n=137) and 1.8％ (n=57),respectively.After controlling for potential confounders,no significant differences between pregnancy-induced hypertension syndrome and early-term birth (OR=1.49,95％C1:0.94-2.36) were found.Pre-eclampsia appeared to have increased the risk of early-term birth (OR=4.46,95％ CI:2.09-9.54).Conclusion Pre-eclampsia could significantly increase the risk of early-term birth.This finding suggested that early detection and intervention programs were helpful in reducing the risk of early-term birth.

Pregnancy intention and pregnancy-related anxiety in the second and third trimester: a birth cohort study / 中华流行病学杂志

Objective To understand the association between pregnancy intention and pregnancy-related anxiety in the second and third trimester and its strength.Methods A prospective cohort study was conducted in Ma' anshan,Anhui province.A total of 3 474 eligible pregnant women within 14 weeks of gestation were recruited.The information about their demographic characteristics were collected in early pregnancy.The completed questionnaire of pregnancy-related anxiety were asked to return in the second and third trimester.Logistic regression analysis was conducted to evaluate the association between pregnancy intention and pregnancy-related anxiety in the second and third trimester.Results A total of 3 083 pregnant women were included in final analysis,The rate of unintentional pregnancy was 15.00％ (n=461).The detection rates of pregnancy-related anxiety in the second and third trimester were 29.13％ (n=898) and 30.36％ (n=936).After controlling potential confounding factors,unintentional pregnancy increased the risk of pregnancy-related anxiety in the second trimester compared with intentional pregnancy (OR=1.85,95％ CI:1.44-2.38);The risk of pregnancy-related anxiety also increased in the third trimester (OR=1.84,95％ CI:1.44-2.35).Intentional pregnancy did not increase the risk of pregnancy-related anxiety in the second and third trimester.Conclusion The study results suggests that unintentional pregnancy could increase the risk of pregnancy-related anxiety in the second and third trimester.

Relations between hypertensive disorders in pregnancy and subsequent risk of early-term birth:a birth cohort study / 中华流行病学杂志

Objective To evaluate the relations between hypertensive disorders (HDP) in pregnancy and early-term birth.Methods A total of 3 474 pregnant women were consecutively recruited.Demographic information was collected in early pregnancy.HDP was diagnosed in the first,second and third trimesters,respectively.On the basis of precise evaluation on gestation age,early-term birth was defined as gestational age of 37-38 weeks + 6 days.Logistic regression models were conducted to examine the associations between HDP and early-term birth.Results The current study included 3 260 pregnant women,with the rates of HDP,pregnancy-induced hypertension syndrome and pre-eclampsia as 6.0％ (n=194),4.2％ (n=137) and 1.8％ (n=57),respectively.After controlling for potential confounders,no significant differences between pregnancy-induced hypertension syndrome and early-term birth (OR=1.49,95％C1:0.94-2.36) were found.Pre-eclampsia appeared to have increased the risk of early-term birth (OR=4.46,95％ CI:2.09-9.54).Conclusion Pre-eclampsia could significantly increase the risk of early-term birth.This finding suggested that early detection and intervention programs were helpful in reducing the risk of early-term birth.

Pregnancy intention and pregnancy-related anxiety in the second and third trimester: a birth cohort study / 中华流行病学杂志

Objective To understand the association between pregnancy intention and pregnancy-related anxiety in the second and third trimester and its strength.Methods A prospective cohort study was conducted in Ma' anshan,Anhui province.A total of 3 474 eligible pregnant women within 14 weeks of gestation were recruited.The information about their demographic characteristics were collected in early pregnancy.The completed questionnaire of pregnancy-related anxiety were asked to return in the second and third trimester.Logistic regression analysis was conducted to evaluate the association between pregnancy intention and pregnancy-related anxiety in the second and third trimester.Results A total of 3 083 pregnant women were included in final analysis,The rate of unintentional pregnancy was 15.00％ (n=461).The detection rates of pregnancy-related anxiety in the second and third trimester were 29.13％ (n=898) and 30.36％ (n=936).After controlling potential confounding factors,unintentional pregnancy increased the risk of pregnancy-related anxiety in the second trimester compared with intentional pregnancy (OR=1.85,95％ CI:1.44-2.38);The risk of pregnancy-related anxiety also increased in the third trimester (OR=1.84,95％ CI:1.44-2.35).Intentional pregnancy did not increase the risk of pregnancy-related anxiety in the second and third trimester.Conclusion The study results suggests that unintentional pregnancy could increase the risk of pregnancy-related anxiety in the second and third trimester.

Mid-gestational glucose levels and newborn birth weight: birth cohort study / 中华流行病学杂志

<p><b>OBJECTIVE</b>To understand the association between the blood glucose levels of pregnant women in second trimester detected by 75 gram oral glucose tolerance test (OGTT) and the birth weight of neonates.</p><p><b>METHODS</b>Demographic information collection and OGTT were conducted for 3 081 pregnant women at ≤14 gestational weeks and 24-28 gestational weeks respectively. Multiple logistic regression analysis was done to identify the factors associated with the birth weight and the risks of large for gestational age (LGA) in three levels (FPG, OGTT-1 h and OGTT-2 h) of OGTT percentile group, multiple linear regression analysis was used to evaluate the relationships between maternal glucose levels and neonate birth weight.</p><p><b>RESULTS</b>Pre-pregnancy obesity (24.0 kg/m2≤BMI<28.0 kg/m2) (OR=1.4, 95%CI:1.0-2.0, P=0.029) and gestational diabetes mellitus (OR=2.4,95% CI: 1.8-3.2, P<0.001) were the risk factors. Pre-pregnancy underweight (BMI<18.5 kg/m2) (OR=1.6, 95%CI: 1.2-2.2, P=0.003), preeclampsia (OR=4.0, 95%CI: 1.9-8.4, P<0.001) increased the risk for small for gestational age (SGA). Multiple linear regression analysis showed neonate birth weight was positive correlated with maternal glucose levels (β were 91.99, 33.60, 32.00, respectively, P<0.001). Percentile groups of each OGTT level was linearly positive associated with increased mean value of neonate birth weight, and so with the risk of LGA.</p><p><b>CONCLUSIONS</b>There were positive correlations between maternal glucose levels and neonate birth weight. The risk of LGA increased with the maternal glucose levels, but there was no statistical association between SGA and maternal glucose levels. FPG level is one of the predictors of LGA. Active surveillance and control of maternal glucose level can effectively reduce the risk of LGA.</p>

Pregestational body mass index, weight gain during first half of pregnancy and gestational diabetes mellitus: a prospective cohort study / 中华流行病学杂志

<p><b>OBJECTIVE</b>To evaluate the associations between pregestational body mass index (BMI), weight gain during first half of pregnancy and the risk for gestational diabetes mellitus (GDM).</p><p><b>METHODS</b>A prospective cohort study was conducted among 1,914 local pregnant women, receiving the first prenatal examination during the first 14 weeks of gestation, in Ma'anshan of Anhui province from May 2013 to September 2014. The body weight and height were measured for these pregnant women and questionnaire surveys were conducted among them at enrollment, middle gestation and late gestation, respectively. During 24-28 week of gestation, 75 g oral glucose tolerance test was conducted for them. The independent and joint associations between pregestational BMI/weight gain and the risk of GDM were examined by using logistic regression model.</p><p><b>RESULTS</b>The prevalence of GDM was 14.73%. There was significant negative correlation between pregestational BMI and weight gain during the first half of pregnancy (r=-0.085, P<0.01), meanwhile the weight gain of GDM women was significantly higher than that of women without GDM. The women with pregestational overweight or obesity had increased risks of GDM. The results from the logistic regression analysis showed that the risk factors included age≥35 years (OR=3.06, 95% CI: 1.68-5.58), fasting plasma glucose level during early pregnancy (OR=2.17, 95% CI: 1.57-3.00), pregestational overweight (OR=2.08, 95% CI: 1.38-3.13), pregestational obesity (OR=3.73, 95% CI: 1.84-7.56).</p><p><b>CONCLUSION</b>Pregestational overweight or obesity and body weight gain during pregnancy were associated with increased risk of GDM.</p>

Study of the change and role of protein C system in ulcerate colitis / 生理学报

Hypercoagulable state and thrombosis are major lethal causes of ulcerate colitis (UC). The aim of the present study is to explore the change and role of protein C (PC) system in UC thrombosis. 4% dextran sulfate sodium (DSS) was used to induce the UC model, and the body weight, the length of colon, and the weight of spleen were measured after intake of DSS as drinking water for 1 week. The macroscore and microscore were examined. The quantity of macrophage in colon smooth muscle was observed by immunofluorescence, and TNF-α and IL-6 levels in plasma were evaluated by ELISA. Intravital microscopy was applied to observe colonic mucosal microvascular circulation, activities of PC and protein S (PS) were determined by immunoturbidimetry, endothelial cell protein C receptor (EPCR) and thrombomodulin (TM) expressions were detected by immunohistochemistry. In vitro, TNF-α and IL-6 levels were tested in supernatant of macrophage separated from colonic tissue. After stimulation of mouse colonic mucosa microvascular endothelial cells by TNF-α and IL-6 respectively, the activities of PC, PS, activated protein C (APC) were evaluated, and the expressions of EPCR and TM were detected by Western blotting. The results revealed that compared with control, the DSS mouse showed weight loss (P < 0.05), a shortened colon (P < 0.05), and swelled spleen (P < 0.05), accompanied by higher histological score (P < 0.05), as well as infiltration of macrophages, elevated TNF-α and IL-6 levels in plasma (P < 0.01). The intravital microscopy results revealed that compared with control, DSS mice showed significantly enhanced adhesion of leukocytes and colonic mucosal microvascular endothelial cells (P < 0.01), meanwhile, decreased activity of PC and PS in plasma (P < 0.01 or P < 0.05), and down-regulated expression of EPCR (P < 0.01). The degree of inflammation was negatively correlated with the PC activity. In vitro, TNF-α and IL-6 levels were increased in the supernatant of macrophages from DSS mice colonic tissue (P < 0.05), and after incubation of TNF-α or IL-6 with colonic mucosal microvascular endothelial cells, the APC activity was decreased (P < 0.05 or P < 0.01), and expression of EPCR was down regulated (P < 0.05). These results suggest that PC system is inhibited in UC mouse. Presumably, the mechanism may be due to the secretion of cytokines from macrophages and subsequential influence on the function of endothelia cells. Furthermore, enhancement of PC system activity may serve as a new strategy for the treatment of UC.