Objective To investigate the prevalence of the depression and the activities of daily living in the elderly population in Hebei province.Methods In this cross-sectional study,3 176 subjects aged over 60 were selected from 4 urban communities in Hebei Province.The demographic data was collected,and the Center for Epidemiological Survey,Depression Scale,(CES-D) and the activities of daily living Scale (ADL) were used to assess their depression status and activities of daily living.Results Among the 3 176 subjects,268 cases (8.4％) got the CES-D scores of over 15 and 232 cases (7.3％) got the ADL scores of over 26.14.2％ of depression group needed life care,27.9％ of depression group had absence of daily living activities.Multivariate logistic results showed that gender (OR=2.142),diseases situation (OR=2.214),marriage (OR=0.484),and life abilities like shower (OR =1.333),walk around home (OR=1.275),wear clothes(OR=2.129),moving on a wheelchair(OR=1.118) had significant effect on depression.Conclusion Elder people population who have characteristics like female,single,illness,can't take shower by themselves,life care depended,more likely get higher CES-D scores and depression.

Objective To examine the association between pregnancy-induced hypertension(PIH) and small-for-gestational-age babies(SGA)in a Chinese population.Methods Subjects were women who delivered a singleton baby(gestational weeks:equal to or greater than 28,and less than 42)in four cities or counties in Jiangsu and Zhejiang provinces,China,during the period of 1995-2000.A total number of 93 743 women were included.Incidence of SGA was calculated and compared between women with or without PIH and between groups with different severities of PIH.Multiple logistic regression was used to address the relationship between PIH and SGA while controlling for maternal age,occupation,education,parity,BMI,anemia,premature rupture of membranes and fetal sex.The association between PIH and SGA was also examined according to preterm or term delivery.Results The incidence of SGA in women with PIH(6.0%)was higher than women without(4.5%),and the incidence increased with severities of PIH.The adjusted relative risk rates(95%CI)of SGA in women with mild,moderate and severe PIH were 1.17(1.01-1.34),1.69(1.33-2.14),and 3.50(2.57-4.77),respectively,when confounders were controlled for.The risk ratios of SGA in women with PIH among women who delivered a preterm baby wete higher than those among women who delivered a term baby.Conclusion There seemed a statistical association between PIH and SGA,and women with PIH having higher incidence of SGA than those withont PIH.

OBJECTIVETo investigate the association between third trimester hemoglobin (Hb) concentrations and the risk of low birth weight and preterm delivery in a Chinese population.

METHODSSubjects were women who delivered in four cities/counties in Jiangsu and Zhejiang provinces, China, during the period of 1995 - 2000. Incidence of low birth weight and preterm delivery was calculated and compared among groups of women with different levels of Hb during the third trimester. Multiple logistic regression was used to address relationships between Hb levels and the risk of preterm delivery and low birth weight while controlling for potential confounding factors.

RESULTSThe overall prevalence of anemia during third trimester of pregnancy was 48.2% , mainly consisting of mild and moderate anemia. Mild and moderate anemia did not increase the risk of preterm delivery and low birth weight statistically. The lowest incidence of preterm delivery and low birth weight was found among pregnant women with Hb levels at 90-99 g/L. The risk for preterm delivery and low birth weight increased with either increasing or decreasing hemoglobin concentrations. However,there was no remarkable elevation of the risk when Hb was in the range of 70-119 g/L. Women with severe anemia (Hb< 70 g/L) had 80% higher risk (95% CI:1.0-3.3) of preterm delivery and a 4.0-fold higher risk (95 % CI :2. 1-7.5) of low birth weight compared with women with an Hb value of 90-99 g/L. In addition, women with a high Hb concentration (Hb> 130 g/L) had 20% higher risk (95 % CI: 1..0-1.4) of preterm delivery and 50 % higher risk (95 % CI: 1.2-1.9) of low birth weight.

CONCLUSIONA U-shape relationship was found between Hb concentration and the risk of preterm delivery and low birth weight. Severe anemia and high hemoglobin concentration were both associated with increased risk of preterm deliveries and low birth weight.

Adult ; Delivery, Obstetric ; Female ; Hemoglobins ; metabolism ; Humans ; Infant, Low Birth Weight ; Infant, Newborn ; Infant, Premature ; Pregnancy ; Pregnancy Trimester, Third ; Premature Birth ; blood ; epidemiology ; Risk Factors ; Young Adult

In this study we investigate the effects of cadmium stress on Astragalus membranaceus seedlings and the alleviative effects of attapulgite clay in growth substrate on cadmium stress to A. membranaceus seedlings. The results showed that the Y (Ⅱ) (effective photochemical quantum yield of PSⅡ photosynthetic), qP(photochemical quenching coefficient), ETR(the rate of non-cyclic electrontransport through PSⅡ), and chlorophyll content of the leaves were significantly decreased with the increase of cadmium concentrations, while the cadmium content, non-photochemical quenching(NPQ, qN) of the leaves and cadmium content, MDA content, plasma membrane permeability, and the damage degree of root apical membrane of the roots were significantly increased. Simultaneously, the activities of APX(ascorbate peroxidase), SOD(superoxide dismutase), POD(peroxidase), CAT(catalase), soluble protein content, and soluble sugar content of roots were increased first but then decreased with the increasing cadmium concentration. Under the condition of without Cd stress, the attapulgite clay into the growth substrate did not significantly affect above physiological indexes of leaves, but significantly increased SOD activity and soluble sugar content of roots and decreased the MDA content, damage degree of root apical membrane of roots, while other physiological indexes did not significantly change. Under cadmium stress, the presence of attapulgite clay in the growth substrate significantly alleviated the cadmium-induced decreases Y (Ⅱ), qP, ETR and chlorophyll content of leaves, and the CAT activity, soluble protein content, and soluble sugar content of roots. Under condition with cadmium stress, the presence of attapulgite clay significantly alleviated the cadmium-induced increases of leaves cadmium content, qN and NPQ, and the cadmium content, MDA content, plasma membrane permeability, damage degree of root apical membrane, SOD, POD, and APX activity of the roots. And, the alleviative effects of attapulgite clay on cadmium stress to A. membranaceus roots were more obvious with the increase of cadmium stress time. The above results showed that the addition of attapulgite clay into the growth substrate has certain alleviative effect on the cadmium stress to A. membranaceus seedlings.

In this study, the colonization, diversity and relative abundance of arbuscular mycorrhizal fungi(AMF) in the roots of Panax quinquefolius in different habitats of Shandong province were analyzed by staining-microscopy and high-throughput sequencing. The data were analyzed by bioinformatics tools and statistical software. The results showed that the roots of P. quinquefolius in different habitats were colonized by AMF with different rates and intensities. The AMF in roots of P. quinquefolius belong to three genera, three families, three orders, one class and one phylum. At the level of order, the AMF mainly included Paraglomerales(52.48%), Glomerales(25.60%) and Archaeosporales(3.08%). At the level of family, the AMF were dominated by Paraglomeraceae(52.48%), Glomeraceae(18.94%) and Claroideoglomeraceae(3.05%). At the level of genus, Paraglomus(51.46%), Glomus(20.01%) and Claroideoglomus(3.52%) accounted for a large proportion, of which Paraglomus and Glomus were dominant. Cluster analysis showed that the AMF in roots of P. quinquefolius with close geographical locations could be clustered together. In this study, the diversity and dominant germplasm resources of AMF in roots of P. quinquefolius cultivated in the main producing areas were identified, which provi-ded basic data for revealing the quality formation mechanism of P. quinquefolius medicinal materials from the perspective of environment.
Fungi ; Glomeromycota ; Humans ; Mycorrhizae/genetics* ; Panax ; Plant Roots ; Soil Microbiology

OBJECTIVE: To observe the effect of Quyu Chencuo Formula (, QCF) on renal fibrosis in rats with obstructive nephropathy. METHODS: Twenty-four rats were randomly divided into three groups, 4 for sham operation as the control group, 10 for unilateral ureteral obstruction (UUO) model group, and the rest 10 for QCF treating UUO model group. All rats were sacrificed under 3% pentobarbital (50 mg/kg) anesthesia on the 14th day after surgery, then the right kidney samples of rats were harvested for hematoxylin eosin (HE) staining and Masson staining to observe the renal pathological changes. Immunohistochemistry and Western blotting were used to examine the expression of transforming growth factor β1 (TGF-β1), and real-time polymerase chain reaction (RT-PCR) was employed to examine the expressions of TGF-β1, α-smooth muscle actin (α-SMA) and E-cadherin mRNA. RESULTS: HE and Masson staining showed that the renal interstitial of the rats in the control group had no significant fibrotic lesion; in the model group, there were obvious interstitial fibrosis; for the QCF group, there were epithelial cell necrosis, infiltration of lymphocytes and mononuclear cells, aggravated interstitial fibrosis in varied degrees, but the pathological changes were less in the QCF group than in the model group. The immunohistochemistry and Western blotting results showed that the TGF-β1 expression was increased significantly in the model group, while decreased significantly in the QCF group (P<0.05); RT-PCR showed that the mRNA expression of α-SMA and TGF-β1 increased significantly in the model group, while both were significantly decreased in the QCF group compared with the model group (P<0.05). The mRNA expression of E-cadherin was decreased significantly in the model group, and it was significantly increased in the QCF group as compared with the model group (P<0.05). CONCLUSION QCF may improve renal fibrosis by regulating the expressions of TGF-β1, α-SMA and E-cadherin, and prevent the progress of kidney fibrosis.
Actins ; genetics ; Animals ; Cadherins ; genetics ; Drugs, Chinese Herbal ; therapeutic use ; Female ; Fibrosis ; Kidney ; pathology ; Kidney Diseases ; drug therapy ; metabolism ; pathology ; Male ; RNA, Messenger ; analysis ; Rats ; Rats, Wistar ; Transforming Growth Factor beta1 ; genetics

Biochar is a kind of solid material with high aromatization and rich in carbon, which is formed by pyrolysis of biomass at high temperature(250-700 ℃) under anoxic or hypoxic conditions. It has the characteristics of large specific surface area and rich pores. In recent years, as a good soil conditioner, biochar has gradually improved its advantages in improving soil rhizosphere micro ecological environment, promoting plant growth and development, and enhancing plant resistance, etc. It has been proved that biochar can affect the growth and development of plants by improving soil physical and chemical properties, adjusting microbial community structure, participating in the metabolic process in plants, and inducing plants to enhance resistance. This paper summarized the research progress of biochar application in agriculture and introduced the ecological effects and mechanism of biochar on plant seed germination, seedling growth, crop yield and stress resistance. Combined with the characteristics of Chinese materia medica, this paper expounds the application potential of biochar in improving the content of secondary metabolites of Chinese materia medica and alleviating continuous cropping obstacles of Chinese materia medica, etc. In the future, it is necessary to strengthen the research of biochar in the biosynthesis of secondary metabolites, allelopathy and heavy metal stress of medicinal plants, so as to provide reference for the application of biochar in the cultivation of Chinese materia medica.
Agriculture ; Charcoal ; China ; Drugs, Chinese Herbal ; Humans ; Materia Medica

SARS-CoV-2 has infected more than 600 million people worldwide and caused more than 6 million deaths. The emerging novel variants have made the epidemic rebound in many places. Meteorological factors can affect the epidemic spread by changing virus activity, transmission dynamic parameters and host susceptibility. This paper systematically analyzed the currently available laboratory and epidemiological studies on the association between the meteorological factors and COVID-19 incidence, in order to provide scientific evidence for future epidemic control and prevention, as well as developing early warning system.
Humans ; SARS-CoV-2 ; COVID-19 ; Meteorological Concepts ; Laboratories ; Epidemiologic Studies