The drylands of China are extensive, and they are home to more than one-third of the country's population. However, the watershed territories of the drylands, where the majority of human activities are concentrated have long experienced strained human-land relationships, culminating in ecological security concerns. Correspondingly, it is essential to carry out a comprehensive assessment of the ecological security of dryland watersheds and to identify the key factors influencing ecological security in order to formulate strategies that ensure the sustainability of drylands.
View Article and Find Full Text PDFInt J Environ Res Public Health
August 2022
China has been reported as the world's largest carbon emitter, facing a tough challenge to meet its carbon peaking goal by 2030. Reducing the carbon intensity of energy-intensive industries (EIICI) is a significant starting point for China to achieve its emission reduction targets. To decompose the overall target into regions, understanding the spatiotemporal differences and drivers of carbon intensity is a solid basis for the scientific formulation of differentiated regional emission reduction policies.
View Article and Find Full Text PDFWater pollution is an urgent problem that needs to be controlled via green transformation and the development of the Yangtze River Economic Belt (YREB). Based on the water pollutant discharge and socio-economic database of prefecture-level cities in the YREB from 2011 to 2015, this study explores the spatiotemporal variations in water pollutant discharge in the YREB via two main indicators: chemical oxygen demand (COD) and ammonia nitrogen (NH-N). Further, the spatial effects and determinants of water pollutant discharge are quantitatively estimated.
View Article and Find Full Text PDFBACKGROUND Bronchopulmonary dysplasia (BPD) is a chronic lung disease mostly affecting premature infants. Long non-coding RNA (lncRNA) X inactive specific transcript (Xist) is actively involved in pulmonary disease development. The present study explored the potential mechanism of Xist in BPD development.
View Article and Find Full Text PDFEnviron Sci Pollut Res Int
September 2019
China is currently the largest CO emitter in the world. Within China, more than 60% of CO emissions originate from high energy-intensive (HEI) industries. Therefore, controlling and reducing CO emissions from HEI industries is crucial if China is to achieve its 2030 emission reduction targets.
View Article and Find Full Text PDFBACKGROUND Neutrophil gelatinase-associated lipocalin plays an important role in renal dysfunctions. The objective of this study was to test the hypothesis that indomethacin used in treating patent ductus arteriosus protects infants from renal dysfunction. MATERIAL AND METHODS This prospective cohort study assessed data on urine prostaglandin metabolites, urinary neutrophil gelatinase-associated lipocalin, and the renal functions of preterm infants with confirmed patent ductus arteriosus who had been injected with indomethacin (n=144, ID group) or acetaminophen (n=144, AP group).
View Article and Find Full Text PDFObjective: To study the clinical effect of calsurf, a domestic exogenous pulmonary surfactant, in the treatment of severe neonatal infectious pneumonia.
Methods: A total of 208 neonates with severe infectious pneumonia who hospitalized in 5 hospitals of China were enrolled. According to their parents' wishes on admission, these neonates were administered with conventional treatment (control group; n=81) and calsurf treatment + conventional treatment (calsurf treatment group, n=127).
Zhongguo Dang Dai Er Ke Za Zhi
August 2018
Objective: To explore the effect of intrauterine growth retardation (IUGR) on insulin sensitivity in neonates and the relationship between insulin sensitivity and plasma adiponectin level.
Methods: Eighty-two term neonates with IUGR and 90 term neonates born appropriate for gestational age (AGA) were enrolled. Weight, height, head circumference and abdomen circumference of the neonates were measured within 24 hours after birth.
Zhongguo Dang Dai Er Ke Za Zhi
January 2018
Objective: To evaluate the value of blood lactic acid (BLA) as a predictor for the severity and prognosis of neonatal shock.
Methods: A total of 326 neonates with shock were enrolled and divided into three groups based on the severity, namely mild group (n=147), moderate group (n=105), and severe group (n=74). BLA level was measured during and early after (about 6 hours later) fluid resuscitation, and lactate clearance rate (LCR) was calculated.
Maternally expressed gene 3 (MEG3), a long noncoding RNA (lncRNA) has been dysregulated in various tumors. However, the expression level and functional role of MEG3 in the progression of respiratory syncytial virus (RSV) infection remains to be elucidated. The present study quantified the expression level of MEG3 in the nasopharyngeal (NPA) samples of RSV‑infected patients and in BEAS‑2B cells infected with RSV.
View Article and Find Full Text PDFZhongguo Shi Yan Xue Ye Xue Za Zhi
June 2017
Objective: To investigate the influence of thrombelastography index changes on its sensitivity and specificity for diagnosis of disseminated intravascular coagulation (DIC) in children.
Methods: A total of 149 children with DIC in our hospital from June 2013 to June 2016 were selected in DIC group, while 106 cases of non-DIC, including healthy children and children with diseases easily confused with DIC, were selected as non-DIC(control) group. The thrombelastography, D-dimer, coagulation functions including prothrombintime (PT), activated partial thromboplastin time (APTT), fibrinogen (FIB) and fibin degradation product (FDP), congental coagulation disorders and platelet count were detected in DIC and non-DIC groups; the statistics of data was performed and the sensitivity and specificity of thromelastraphy indexes such as R time, α angle MA value and A value were evaluated; the relationship of DIC with indexes was analyzed.
Childs Nerv Syst
December 2012
Objective: The aim of this study is to identify prenatal and perinatal risk and protective factors for the development of IVH, using a retrospective and case-control clinical study.
Methods: Prenatal and perinatal data were collected from three NICUs between January 2010 and December 2010. Univariate analysis was performed between case and control groups, and multivariate analysis was done to find out risk and protective factors for development of IVH.
Objective: To carry out a nationwide epidemiologic survey on the neonates in urban hospitals with an attempt to understand the disease spectrum and treatment outcomes of hospitalized neonates in China.
Methods: The clinical data of 43,289 hospitalized neonates from 86 hospitals in 47 Chinese cities (22 provinces) between January 1, 2005 and December 31, 2005 were retrospectively analyzed.
Results: The male:female ratio was 1.
Objective: To further investigate the protective effect of retinoic acid (RA) on hyperoxia induced lung injury and the role of RA as a modulator on mitogen-activated protein kinases (MAPKs).
Methods: Establishment of hyperoxia (85%) induced lung injury model of premature Sprague-Dawley (SD) rats: 21 d gestational age SD rat's fetuses (term = 22 d) were delivered by hysterectomy. Within 12 - 24 h after birth, the premature rat pups were randomly divided into 4 groups: Group I, air-exposed control group; Group II, hyperoxia-exposed group; Group III, air plus RA-exposed group, Group IV, hyperoxia plus RA-exposed group.
Zhongguo Wei Zhong Bing Ji Jiu Yi Xue
June 2008
Objective: To study the deleterious effect of prolonged hyperoxic exposure on term and premature neonatal rat lungs and investigate the relationship between insulin-like growth factor binding protein (IGFBP)-2 and hyperoxia-induced lung injury in neonatal rats.
Methods: At the 22nd postnatal day Sprague-Dawley (SD) term-newborn or preterm-newborn rats were randomly divided into 4 groups. group I: term-rats+air group; group II: term-rats+hyperoxia group; group III: preterm-rats+air group; group IV: preterm-rats+hyperoxia group.
J Huazhong Univ Sci Technolog Med Sci
May 2006
To investigate role of Notch1 - 3 in hyperoxia-induced lung injury in newborn rat exposed to 85% O2, SD rat litters born on the 22th day were randomly divided into two groups: room air group and hyperoxia group. The animals were sacrificed 1, 4, 7, 10, 14 and 21 days after continued exposure to oxygen (n = 40, oxygen > 0.85) or room air (n = 40).
View Article and Find Full Text PDFObjective: To analyze the effect of hyperoxia on the proliferation and surfactant associated protein messenger RNA levels of type II alveolar epithelial cells (AECIIs) of premature rat, and to investigate the effect of amygdalin on the change resulted from hyperoxia in AECIIs isolated from premature rat lung in vitro.
Methods: The lung tissue of 20-day fetal rat was digested by trypsin and collagenase. AECIIs and lung fibroblasts (LFs) were isolated and purified at different centrifugal force and different adherence, then cultured.
J Huazhong Univ Sci Technolog Med Sci
May 2006
The influence of platelet-derived growth factor (PDGF) on lung development in newborn rats and the effect of retinoic acid (RA) on PDGF in lung development were investigated. Newborn Sprague-Dawley (SD) rats were randomly assigned to two groups: control group and RA group. The rats in RA group was intraperitoneally injected with all trans-retinoic acid (500 microg/kg every day) for consecutive 3 days after birth, while those in the control group were not subjected to intervention.
View Article and Find Full Text PDFJ Huazhong Univ Sci Technolog Med Sci
May 2006
The pathogenesis of hyperoxia lung injury and the mechanism of amygdalin on type 2 alveolar epithelial cells (AEC2) isolated from premature rat lungs in vitro were investigated. AEC2 were obtained by primary culture from 20-days fetal rat lung and hyperoxia-exposed cell model was established. Cell proliferating viability was examined by MTT assay after treatment of amygdalin at various concentrations.
View Article and Find Full Text PDFJ Huazhong Univ Sci Technolog Med Sci
May 2006
To explore the relationship between Insulin-like growth factor (IGF)-I , -II and lung development in neonatal rats. 80 timed pregnant Sprague-Dawley (SD) rats were randomly divided into 4 groups (n=20): group A (Control group), group B (Dexamethasone (DEX) 1 group), group C (DEX 2 group), group D (retinoic acid (RA) group). 20 pregnant rats in group A, B and D were injected subcutaneously or intraperitoneally with vehicle (NS), DEX, or RA respectively during gestational day 16 to 18.
View Article and Find Full Text PDFJ Huazhong Univ Sci Technolog Med Sci
July 2004
To evaluate the changes of 3', 5'-cyclic adenosine monophosphate (cAMP), thromboxane A2(TXA2) and prostacyclin (PGI2) in cerebrospinal fluid (CSF) in the asphyxiated newborn and explore their roles in hypoxic-ischemic brain damage (HIBD). Thirty-six full term newborns were divided into 3 groups, including 12 with moderate-severe hypoxic-ischaemic encephalopathy (HIE), 13 with mild HIE, 11 without HIE (control group). The levels of cAMP, TXB2 (TXA2 metabolite) and 6-keto-PGF1 alpha (PGI2 metabolite) in CSF and plasma were measured 36-72 h after birth by RIA, and the concentrations were expressed as nM/L (cAMP), ng/L(TXB2 and 6-keto-PGF1 alpha).
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