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Chen WH, Liang JD, Ren XX, Zhao JH, Han YF. Two new species of Samsoniella (Cordycipitaceae, Hypocreales) from the Mayao River Valley, Guizhou, China. MycoKeys 2023; 99:209-226. [PMID: 37744955 PMCID: PMC10517413 DOI: 10.3897/mycokeys.99.109961] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Accepted: 08/31/2023] [Indexed: 09/26/2023] Open
Abstract
Samsoniella species have been often found in the forest habitat and rarely found in special karst eco-environments, such as Tiankeng, valleys and caves. In this research, eleven cordyceps specimens were collected from Mayao River Valley. A known species (S.haniana) and two new species (S.duyunensis and S.vallis) were established and described according to a multilocus phylogenetic analysis and morphological characteristics. Our results provide insight that the richness of Samsoniella species in karst eco-environments and further attention should be paid to entomopathogenic fungi in such habitats.
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Affiliation(s)
- Wan-Hao Chen
- Center for Mycomedicine Research, Basic Medical School, Guizhou University of Traditional Chinese Medicine, Guiyang 550025, Guizhou, ChinaGuizhou University of Traditional Chinese MedicineGuiyangChina
| | - Jian-Dong Liang
- Center for Mycomedicine Research, Basic Medical School, Guizhou University of Traditional Chinese Medicine, Guiyang 550025, Guizhou, ChinaGuizhou University of Traditional Chinese MedicineGuiyangChina
| | - Xiu-Xiu Ren
- Center for Mycomedicine Research, Basic Medical School, Guizhou University of Traditional Chinese Medicine, Guiyang 550025, Guizhou, ChinaGuizhou University of Traditional Chinese MedicineGuiyangChina
| | - Jie-Hong Zhao
- Center for Mycomedicine Research, Basic Medical School, Guizhou University of Traditional Chinese Medicine, Guiyang 550025, Guizhou, ChinaGuizhou University of Traditional Chinese MedicineGuiyangChina
| | - Yan-Feng Han
- Institute of Fungus Resources, Department of Ecology, College of Life Sciences, Guizhou University, Guiyang 550025, Guizhou, ChinaGuizhou UniversityGuiyangChina
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Chen WH, Liang JD, Ren XX, Zhao JH, Han YF. Study on species diversity of Akanthomyces (Cordycipitaceae, Hypocreales) in the Jinyun Mountains, Chongqing, China. MycoKeys 2023; 98:299-315. [PMID: 37547126 PMCID: PMC10403762 DOI: 10.3897/mycokeys.98.106415] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Accepted: 07/16/2023] [Indexed: 08/08/2023] Open
Abstract
Akanthomyces species have only been reported from Guizhou and Qinghai Province, with few reports from other regions in China. In this research, the species diversity of Akanthomyces in the Jinyun Mountains, Chongqing was investigated. Fourteen infected spider specimens were collected and two new species (A.bashanensis and A.beibeiensis) and a known species (A.tiankengensis) were established and described according to a multi-locus phylogenetic analysis and the morphological characteristics. Our results reveal abundant Akanthomyces specimens and three species were found at Jinyun Mountain. Due to its being an important kind of entomopathogenic fungi, further attention needs to be paid to the diversity of other entomopathogenic fungi in Chongqing, China.
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Affiliation(s)
- Wan-Hao Chen
- Center for Mycomedicine Research, Basic Medical School, Guizhou University of Traditional Chinese Medicine, Guiyang 550025, Guizhou, ChinaGuizhou University of Traditional Chinese MedicineGuiyangChina
| | - Jian-Dong Liang
- Center for Mycomedicine Research, Basic Medical School, Guizhou University of Traditional Chinese Medicine, Guiyang 550025, Guizhou, ChinaGuizhou University of Traditional Chinese MedicineGuiyangChina
| | - Xiu-Xiu Ren
- Center for Mycomedicine Research, Basic Medical School, Guizhou University of Traditional Chinese Medicine, Guiyang 550025, Guizhou, ChinaGuizhou University of Traditional Chinese MedicineGuiyangChina
| | - Jie-Hong Zhao
- Center for Mycomedicine Research, Basic Medical School, Guizhou University of Traditional Chinese Medicine, Guiyang 550025, Guizhou, ChinaGuizhou University of Traditional Chinese MedicineGuiyangChina
| | - Yan-Feng Han
- Institute of Fungus Resources, Department of Ecology, College of Life Sciences, Guizhou University, Guiyang 550025, Guizhou, ChinaGuizhou UniversityGuiyangChina
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Fang BL, Xu F, Lu GP, Ren XX, Zhang YC, Jin YP, Wang Y, Liu CF, Cheng YB, Yang QZ, Xiao SF, Yang YY, Huo XM, Lei ZX, Dang HX, Liu S, Wu ZY, Li KC, Qian SY, Zeng JS. [Analysis of risk factors of mortality in infants and toddlers with moderate to severe pediatric acute respiratory distress syndrome]. Zhonghua Er Ke Za Zhi 2023; 61:216-221. [PMID: 36849347 DOI: 10.3760/cma.j.cn112140-20221108-00947] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 03/01/2023]
Abstract
Objective: To identify the risk factors in mortality of pediatric acute respiratory distress syndrome (PARDS) in pediatric intensive care unit (PICU). Methods: Second analysis of the data collected in the "efficacy of pulmonary surfactant (PS) in the treatment of children with moderate to severe PARDS" program. Retrospective case summary of the risk factors of mortality of children with moderate to severe PARDS who admitted in 14 participating tertiary PICU between December 2016 to December 2021. Differences in general condition, underlying diseases, oxygenation index, and mechanical ventilation were compared after the group was divided by survival at PICU discharge. When comparing between groups, the Mann-Whitney U test was used for measurement data, and the chi-square test was used for counting data. Receiver Operating Characteristic (ROC) curves were used to assess the accuracy of oxygen index (OI) in predicting mortality. Multivariate Logistic regression analysis was used to identify the risk factors for mortality. Results: Among 101 children with moderate to severe PARDS, 63 (62.4%) were males, 38 (37.6%) were females, aged (12±8) months. There were 23 cases in the non-survival group and 78 cases in the survival group. The combined rates of underlying diseases (52.2% (12/23) vs. 29.5% (23/78), χ2=4.04, P=0.045) and immune deficiency (30.4% (7/23) vs. 11.5% (9/78), χ2=4.76, P=0.029) in non-survival patients were significantly higher than those in survival patients, while the use of pulmonary surfactant (PS) was significantly lower (8.7% (2/23) vs. 41.0% (32/78), χ2=8.31, P=0.004). No significant differences existed in age, sex, pediatric critical illness score, etiology of PARDS, mechanical ventilation mode and fluid balance within 72 h (all P>0.05). OI on the first day (11.9(8.3, 17.1) vs.15.5(11.7, 23.0)), the second day (10.1(7.6, 16.6) vs.14.8(9.3, 26.2)) and the third day (9.2(6.6, 16.6) vs. 16.7(11.2, 31.4)) after PARDS identified were all higher in non-survival group compared to survival group (Z=-2.70, -2.52, -3.79 respectively, all P<0.05), and the improvement of OI in non-survival group was worse (0.03(-0.32, 0.31) vs. 0.32(-0.02, 0.56), Z=-2.49, P=0.013). ROC curve analysis showed that the OI on the thind day was more appropriate in predicting in-hospital mortality (area under the curve= 0.76, standard error 0.05,95%CI 0.65-0.87,P<0.001). When OI was set at 11.1, the sensitivity was 78.3% (95%CI 58.1%-90.3%), and the specificity was 60.3% (95%CI 49.2%-70.4%). Multivariate Logistic regression analysis showed that after adjusting for age, sex, pediatric critical illness score and fluid load within 72 h, no use of PS (OR=11.26, 95%CI 2.19-57.95, P=0.004), OI value on the third day (OR=7.93, 95%CI 1.51-41.69, P=0.014), and companied with immunodeficiency (OR=4.72, 95%CI 1.17-19.02, P=0.029) were independent risk factors for mortality in children with PARDS. Conclusions: The mortality of patients with moderate to severe PARDS is high, and immunodeficiency, no use of PS and OI on the third day after PARDS identified are the independent risk factors related to mortality. The OI on the third day after PARDS identified could be used to predict mortality.
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Affiliation(s)
- B L Fang
- Department of Pediatric Intensive Care Unit, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045,China
| | - F Xu
- Department of Pediatric Intensive Care Unit, Children's Hospital of Chongqing Medical University, Chongqing 400014,China
| | - G P Lu
- Department of Pediatric Intensive Care Unit, Children's Hospital of Fudan University, Shanghai 201102,China
| | - X X Ren
- Department of Pediatric Intensive Care Unit, Children's Hospital Affiliated to Capital Institute of Pediatrics, Beijing 100020,China
| | - Y C Zhang
- Department of Critical Care Medicine, Shanghai Children's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200062,China
| | - Y P Jin
- Department of Pediatric Intensive Care Unit, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan 250021,China
| | - Y Wang
- Department of Pediatric Critical Care Medicine Unit, Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine, Shanghai 200127,China
| | - C F Liu
- Department of Pediatric Intensive Care Unit, Shengjing Hospital of China Medical University, Shenyang 110004,China
| | - Y B Cheng
- Department of Pediatric Intensive Care Unit, Henan Children's Hospital, Zhengzhou 450000,China
| | - Q Z Yang
- Department of Pediatric Intensive Care Unit, Liaocheng People's Hospital, Liaocheng 252000,China
| | - S F Xiao
- Department of Pediatric Intensive Care Unit, Kunming Children's Hospital, Kunming 650034,China
| | - Y Y Yang
- Department of Pediatric Intensive Care Unit, Guangzhou Women and Children's Medical Center, Guangzhou 510623,China
| | - X M Huo
- Department of Pediatric Intensive Care Unit, Hebei Children's Hospital, Shijiazhuang 050031,China
| | - Z X Lei
- Department of Pediatric Intensive Care Unit, Hainan Women and Children's Medical Center, Haikou 570206, China
| | - H X Dang
- Department of Pediatric Intensive Care Unit, Children's Hospital of Chongqing Medical University, Chongqing 400014,China
| | - S Liu
- Department of Pediatric Intensive Care Unit, Children's Hospital Affiliated to Capital Institute of Pediatrics, Beijing 100020,China
| | - Z Y Wu
- Department of Pediatric Intensive Care Unit, Guangzhou Women and Children's Medical Center, Guangzhou 510623,China
| | - K C Li
- Department of Pediatric Intensive Care Unit, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045,China
| | - S Y Qian
- Department of Pediatric Intensive Care Unit, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045,China
| | - J S Zeng
- Department of Pediatric Intensive Care Unit, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045,China
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Ren XX, Yang GH. Kullback-Leibler Divergence-Based Optimal Stealthy Sensor Attack Against Networked Linear Quadratic Gaussian Systems. IEEE Trans Cybern 2022; 52:11539-11548. [PMID: 33872173 DOI: 10.1109/tcyb.2021.3068220] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
This article concentrates on designing optimal stealthy attack strategies for cyber-physical systems (CPSs) modeled by the linear quadratic Gaussian (LQG) dynamics, where the attacker aims to increase the quadratic cost maximally and keeping a certain level of stealthiness by simultaneously intercepting and modifying the transmitted measurements. In our work, a novel attack model is developed, based on which the attacker can launch strictly stealthy or ϵ -stealthy attacks. To remain strictly stealthy, the attacker only needs to solve an off-line semidefinite program problem. In such a case, the attack performance is optimal but limited. To achieve a higher desired attack effect than that of the strictly stealthy attack, the attacker sometimes needs to sacrifice the stealthy level. Thus, the ϵ -stealthy attack is analyzed, where an upper bound of the optimal attack performance is obtained by solving a convex optimization problem. Then, an optimal ϵ -stealthy attack is designed to achieve the upper bound, which differs from the existing suboptimal ϵ -stealthy attack for the considered LQG systems. Finally, the simulations are provided to verify the developed results.
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Wang FF, Fang Y, Ren XX, Yang HB, Ge KK, Zhang HH, Wang H, Sun LN. [Analysis of clinical and endoscopic characteristics of colorectal polyps in children]. Zhonghua Yu Fang Yi Xue Za Zhi 2022; 56:1327-1332. [PMID: 36207899 DOI: 10.3760/cma.j.cn112150-20220117-00061] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
To analyze the clinical and endoscopic characteristics of colorectal polyps in children, and to explore the detection rate, age and gender distribution characteristics, endoscopic treatment effect and follow-up monitoring of colorectal polyps in children, so as to provide reference for disease management of colorectal polyps in children. The clinical and endoscopic characteristics of children with colorectal polyps in Xi 'an Children's Hospital from January 2019 to December 2019 were retrospectively analyzed. The patients were divided into 5 groups according to age (y): 0<y<1 years, 1≤ y<4 years, 4≤ y<7 years, 7≤ y<12 years, and 12≤ y ≤18 years. Independent sample t test, Pearson Chi-square test (χ2) were used to compare groups' differences. The results showed that a total of 724 colonoscopies were completed in 2019, and 160 colorectal polyps were diagnosed, with a detection rate of 22.10%. Among the children with colorectal polyps, 105 were males, accounting for 65.62%, and 55 were females, accounting for 34.38%. The detection rate of male colorectal polyps was 22.68%, and the detection rate of female colorectal polyps was 21.08%. There was no significant difference in the detection rate of colorectal polyps between males and females (χ2 = 0.25, P =0.617). Children with colorectal polyps were most common in the age group of 1≤ y<4 years, 72 cases, accounting for 41.14%(72/175). The detection rate of colorectal polyps in different age groups was statistically significant (χ2=73.929, P<0.05). The main symptom of children with colorectal polyps was hematochezia, accounting for 87.5% (140/160). Colorectal polyps were mainly single polyps in 140 patients, accounting for 87.50%, 15 patients had 2-4 polyps, accounting for 9.38%, and 5 patients had 5 or more polyps, accounting for 3.12%. A total of 210 polyps were removed, and the most common site of polyps was rectum, 123 polyps, accounting for 58.57% (123/210). 111 (52.86%, 111/210) of them were 1 cm to 2 cm in diameter. The Yamada classification was mainly type Ⅲ, 114 pieces, accounting for 54.29% (114/210). Among the 210 polyps with diameter ≥0.5 cm, 165 were removed by endoscopic mucosal resection, accounting for 78.57% (165/210). There were 23 patients with postoperative complications, including hematochezia, abdominal pain, fever, vomiting, diarrhea, dizziness, and no gastrointestinal perforation. Juvenile polyps were the main pathological type, accounting for 88.13% (141/160). The children with juvenile polyps were followed up for 3-30 months, and recurrence was considered in 2 of them. In conclusion, the detection rate of colorectal polyps in children aged 1≤ y<4 years is high, and hematochezia is the main clinical manifestation. Standardized endoscopic treatment and follow-up monitoring are very important for children with colorectal polyps.
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Affiliation(s)
- F F Wang
- Department of Gastroenterology, Xi' an Children' s Hospital, Xi'an 710003, China
| | - Y Fang
- Department of Gastroenterology, Xi' an Children' s Hospital, Xi'an 710003, China
| | - X X Ren
- Department of Gastroenterology, Xi' an Children' s Hospital, Xi'an 710003, China
| | - H B Yang
- Department of Gastroenterology, Xi' an Children' s Hospital, Xi'an 710003, China
| | - K K Ge
- Department of Gastroenterology, Xi' an Children' s Hospital, Xi'an 710003, China
| | - H H Zhang
- Department of Gastroenterology, Xi' an Children' s Hospital, Xi'an 710003, China
| | - H Wang
- Department of Gastroenterology, Xi' an Children' s Hospital, Xi'an 710003, China
| | - L N Sun
- Department of Gastroenterology, Xi' an Children' s Hospital, Xi'an 710003, China
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Zhang XG, Yang GH, Ren XX. Network steganography based security framework for cyber-physical systems. Inf Sci (N Y) 2022. [DOI: 10.1016/j.ins.2022.07.081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Chen WH, Liang JD, Ren XX, Zhao JH, Han YF, Liang ZQ. Phylogenetic, ecological and morphological characteristics reveal two new spider-associated genera in Clavicipitaceae. MycoKeys 2022; 91:49-66. [PMID: 36760893 PMCID: PMC9849053 DOI: 10.3897/mycokeys.91.86812] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2022] [Accepted: 06/20/2022] [Indexed: 11/12/2022] Open
Abstract
Clavicipitaceous fungi are pathogenic to scale insects, white flies and other insect orders. However, a few species are spider-associated. Two new genera from China, Neoaraneomyces and Pseudometarhizium, are described based on phylogenetic, ecological and morphological characteristics. Two spider-associated species, Neoaraneomycesaraneicola, Pseudometarhiziumaraneogenum, and an insect-associated species Pseudometarhiziumlepidopterorum are included. The morphological characteristics of paecilomyces-like conidiogenous structures, present in many insect/spiders associated species make species-level identifications difficult. A phylogenetic analysis of the combined dataset (ITS, LSU, RPB2 and TEF), placed the two new genera in Clavicipitaceae. The new spider-associated species may be the result of convergent evolution to adapt to the ecological environment and may have undergone host jumping or altered their nutritional preferences.
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Affiliation(s)
- Wan-Hao Chen
- Center for Mycomedicine Research, Basic Medical School, Guizhou University of Traditional Chinese Medicine, Guiyang 550025, Guizhou, ChinaGuizhou University of Traditional Chinese MedicineGuiyangChina
| | - Jian-Dong Liang
- Center for Mycomedicine Research, Basic Medical School, Guizhou University of Traditional Chinese Medicine, Guiyang 550025, Guizhou, ChinaGuizhou University of Traditional Chinese MedicineGuiyangChina
| | - Xiu-Xiu Ren
- Center for Mycomedicine Research, Basic Medical School, Guizhou University of Traditional Chinese Medicine, Guiyang 550025, Guizhou, ChinaGuizhou University of Traditional Chinese MedicineGuiyangChina
| | - Jie-Hong Zhao
- Center for Mycomedicine Research, Basic Medical School, Guizhou University of Traditional Chinese Medicine, Guiyang 550025, Guizhou, ChinaGuizhou University of Traditional Chinese MedicineGuiyangChina
| | - Yan-Feng Han
- Institute of Fungus Resources, Department of Ecology, College of Life Sciences, Guizhou University, Guiyang 550025, Guizhou, ChinaGuizhou UniversityGuiyangChina
| | - Zong-Qi Liang
- Institute of Fungus Resources, Department of Ecology, College of Life Sciences, Guizhou University, Guiyang 550025, Guizhou, ChinaGuizhou UniversityGuiyangChina
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Gao Q, Ren XX, Yan WL, Wang AH, Zhang WH. Born to Win: Reproductive Health Policy and Urban Education Returns in China. Front Public Health 2022; 10:807794. [PMID: 35309191 PMCID: PMC8927718 DOI: 10.3389/fpubh.2022.807794] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Accepted: 01/10/2022] [Indexed: 11/13/2022] Open
Abstract
This study explores the relationship between China's reproductive health policy and the rate of return on urban education by using fixed-effect, mediating-effect, and breakpoint regression models. The authors study the impact of China's reproductive health policy on individual years of education, income, return on education, the impact of reproductive health policy on population health, and overall human development. The empirical results show that the implementation of China's reproductive health policy can improve the rate of return on urban education and increase the average length of education of urban residents by 0.29 years. Under the breakpoint regression model, the educational return rate of urban residents is approximately 12.2% higher than the ordinary least squares (OLS) estimate. China's reproductive health policy has significantly promoted the return rate of residents' education and simultaneously effectively promoted the income of urban residents. With the development of the economy, the government should properly adjust reproductive health policies and improve the population health rate so that the adjustment of reproductive health policies can comprehensively promote the health of residents of all ages. The overall relaxation of family restrictions on children's human capital investment will likely reduce the negative impact of the overall relaxation of family planning, not only improving the health of the population but also contributing to sustainable economic development.
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Affiliation(s)
- Qing Gao
- Key Laboratory of Environment Change and Resources Use in Beibu Gulf Ministry of Education, Nanning Normal University, Nanning, China
- Graduate School, Nanning Normal University, Nanning, China
| | - Xiu-Xiu Ren
- College of Economics and Management, Nanning Normal University, Nanning, China
| | - Wei-Lan Yan
- College of Economics and Management, Nanning Normal University, Nanning, China
- *Correspondence: Wei-Lan Yan
| | - Ai-Hua Wang
- School of International Economics and Trade, Guangxi University of Foreign Languages, Nanning, China
| | - Wei-Hua Zhang
- School of Economics, Guangxi University, Nanning, China
- Guangxi Development and Reform Commission, Nanning, China
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10
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Gao HM, Wang LJ, Qian SY, Ren XX, Liu CF, Zhu YM. [A comparative study of four cross-sectional investigations on the status of pediatric intensive care unit in China over the past 30 years]. Zhonghua Er Ke Za Zhi 2020; 58:488-492. [PMID: 32521961 DOI: 10.3760/cma.j.cn112140-20191118-00735] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To understand the history, current situation and trends of intensive care unit (ICU) of pediatrics in China over the past 30 years. Methods: The results of the cross-sectional investigation on the status of ICU of pediatrics in 2014 were compared with those in 1993, 2001 and 2009. The main measurements were the number of participated provinces and hospitals, the availability of equipment, staffing, and medical technologies, the major diseases and the source of the patients. Besides, the equipment allocation and technology implementation in 2014 were compared with the standards in the "recommendations on grading construction and management of children's intensive care unit in China" published in 2016. Results: The contents of the four surveys were slightly different, with only a few measurements not documented in one or more surveys. (1) The number of provinces and hospitals involved in the four surveys were 20 hospitals in 14 provinces in year 1993, 27 hospitals in 17 provinces in year 2001, 33 hospitals in 25 provinces in year 2009 and 108 hospitals in 25 provinces in year 2014. (2) In 1993, 2001, 2009 and 2014, the ratio of doctors/beds were 0.7∶1,0.8∶1, (0.4-0.5) ∶1 and 0.5∶1, and the ratio of nurses/beds were 1.1∶1,1.4∶1, (1.1-1.7) ∶1 and 1.3∶1, respectively. (3) Regarding the equipment availability, in 1993, 2001, 2009, and 2014, the numbers of monitors were 0.3/ICU, 0.3/bed, 1.1-1.4/bed and 1.0/bed; the numbers of invasive ventilators were 0.4/bed, 0.5/bed, 0.6/bed and 0.4/bed, respectively. In 2001, 2009 and 2014, there were 60.0%, 100.0% (33/33) and 88.0% (95/108) of the participating ICU equipped with blood gas analyzer, and 70.0%, 93.9% (31/33) and 90.7% (98/108) with bedside X-ray machines, respectively. In 2009 and 2014, 69.7% (23/33) and 92.6% (100/108) ICU were equipped with non-invasive ventilators respectively. In 2014, 10.2% (11/108) ICU were equipped with extracorporeal membrane oxygenation (ECMO) equipment and 45.4% (49/108) ICU with bedside continuous blood purification equipment. In 1993, 2001 and 2014, the numbers of infusion pump were 0.5/ICU, 1.1/bed and 1.7/bed, respectively. (4) Regarding the conducted medical technology, in 2014, invasive mechanical ventilation was used in 100% (108/108) ICU, and non-invasive ventilation in 89.8% (97/108) ICU. High frequency ventilation was used in 78.8% (26/33) and 38.0% (41/108) ICU in 2009 and 2014 respectively. Blood purification was used in 22.0%, 69.7% (23/33) and 47.2% (51/108) ICU, and the application of surfactant was in 48.0%, 97.0% (32/33) and 24.1% (26/108) ICU in 2001, 2009 and 2014, respectively. Nitric oxide inhalation (iNO) was used in 24.0% and 9.3% (10/108) in 2001 and 2014 respectively. ECMO was used in 6 and 7 hospitals in 2009 and 2014 respectively. (5) Compared with the criteria in the "recommendations on grading construction and management of children's intensive care units in China" in 2016, only the availability of monitors and conventional mechanical ventilation in 2014 met the standards.The original data in 2001 was not shown due to the lack of absolute values. Conclusions: The number of ICU of pediatrics and its beds in China increased significantly from 1993 to 2014, as well as the equipment availability and the conducted medical technology. But the status in 2014 was still far behind the recommendations in 2016, with a significant shortage of professional staff.
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Affiliation(s)
- H M Gao
- Pediatric Intensive Care Unit, Beijing Children's Hosptial, Capital Medical University, National Center for Children's Health, Beijing 100045, China
| | - L J Wang
- Pediatric Intensive Care Unit, Beijing Children's Hosptial, Capital Medical University, National Center for Children's Health, Beijing 100045, China
| | - S Y Qian
- Pediatric Intensive Care Unit, Beijing Children's Hosptial, Capital Medical University, National Center for Children's Health, Beijing 100045, China
| | - X X Ren
- Department of Intensive Care Unit, Beijing Children's Hospital, Capital Institute of Pediatrics, Beijing 100020, China
| | - C F Liu
- Department of PICU, Shengjing Hospital of China Medical University, Shenyang 110004, China
| | - Y M Zhu
- Hunan Provincial Institute of Emergency Medicine, Changsha 410005, China
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Li XJ, Ren XX, Yang GH. Backstepping-based decentralized tracking control for a class of interconnected stochastic nonlinear systems coupled via a directed graph. Inf Sci (N Y) 2019. [DOI: 10.1016/j.ins.2018.10.062] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Yang X, Qian SY, Zhu YM, Xu X, Liu CF, Xu F, Ren XX, Wang Y, Zhang YC, Lu GP. [Survey on the prevalence of continuous blood purification in Chinese pediatric critical care]. Zhonghua Er Ke Za Zhi 2018; 56:128-133. [PMID: 29429201 DOI: 10.3760/cma.j.issn.0578-1310.2018.02.011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the current application status of continuous blood purification (CBP) technology and equipment in pediatric intensive care unit (PICU) in China. Methods: A cross-sectional survey was conducted to understand the current popularization of CBP technology and equipment, the management of CBP equipment and consumables, and the application of CBP in different diseases. A questionnaire named Application Status of Continuous Blood Purification Technology was applied. Children's hospitals and polyclinic hospitals with the pediatric qualification (pediatric emergency or critical care unit members of Chinese Medical Association and Chinese Medical Doctor Association) were selected. Results: From December 2016 to February 2017, 53 hospitals completed the questionnaire, including 7 in northeast, 6 in north China, 16 in east China, 9 in south China, 5 in central China, 4 in the northwest, and 6 in the southwest region. Continuous renal replacement therapy (CRRT), the most widely used technology, was carried out in 51 hospitals. Other technologies were peritoneal dialysis (IPD) (n=37), artificial liver support (ALSS) (n=26) and blood adsorption (PA) (n=13). There were 107 CBP machines in the 51 hospitals used CBP technology, with an average of 2.10/hospital. In 36 hospitals CBP machines were managed independently by PICU (70%). Hospitals made their own displacement liquid (n=40, 78%), or purchased displacement liquid (n=11, 22%). Hospitals prepared dialysate on their own (n=38, 75%), or purchased dialysate (n=13 hospitals, 25%). In 46 (90%) hospitals, hemodialysis catheter was placed independently by PICU doctors. The routine operation and maintenance of CBP were mainly completed by the PICU nurses in 36 hospitals (71%). There were 39 hospitals (76%) where professional nurses manage and maintain CBP. Puncture sites were femoral vein (n=26, 51%), internal jugular vein (n=21, 41%) and venae subclavia (n=4, 8%). Forty-two hospitals (82%) selected B-mode ultrasound positioning and guidance when performing internal jugular vein puncture. A total of 40 (78%) hospitals have developed post dilution and combined dilution techniques during the implementation of CBP. The most common indications of CBP technology were different in different regions. They were sepsis in northeast (24.0%, 243/1 011) and east China region (32.0%, 982/3 069), multiple organ dysfunction syndrome in south China (29.2%, 444/1 520), north China (15.8%, 126/796), and southwest region (30.1%, 460/1 526), drug poisoning in central China region (21.6%, 325/1 506), and renal failure in northwest region (53.0%, 44/83). Conclusions: CBP technology is widely used in the field of pediatric severe diseases in China. The eastern regions possess more CBP equipment than the western regions. CBP is widely used in the treatment of sepsis.
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Affiliation(s)
- X Yang
- Department of Critical Care Medicine, Children's Hospital of Fudan University, Shanghai 201102, China
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Ren XX, Wang Y, Liu Y, Tan Y, Ren C, Ge Y, Liu Z. Comparative transcriptome analysis of the calcium signaling and expression analysis of sodium/calcium exchanger in Aspergillus cristatus. J Basic Microbiol 2017; 58:76-87. [PMID: 29152764 DOI: 10.1002/jobm.201700277] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2017] [Revised: 07/20/2017] [Accepted: 09/19/2017] [Indexed: 01/26/2023]
Abstract
Aspergillus cristatus develops into various stages under different Na concentrations: the sexual stage in 0.5 M NaCl and asexual development stage in 3 M NaCl. In order to explore whether the Ca2+ signaling pathway in A. cristatus responded to the changes in the salt stress, we analyzed the gene expression levels in A. cristatus respectively cultured in 0.5 M NaCl and 3 M NaCl. According to the BLAST analysis results, we identified 25 Ca2+ -signaling proteins in A. cristatus. The expression levels of most genes involved in the Ca2+ -signaling pathway in A. cristatus cultured in different salt concentrations showed significant differences, indicating that the Ca2+ signaling pathway was involved in the response to the changes in the salt stress. In yeasts, only calcium ion influx proteins were reported to be involved in the response to the changes in the salt stress. So far, the protein for the exchanger of calcium/sodium ions has not been reported. Therefore, we obtained the sodium/calcium exchanger (termed NCX) proteins from the KEGG Database. The ncx gene of A. cristatus was cloned and characterized. The full length of ncx gene is 3055 bp, including a 2994-bp open reading frame encoding 994 amino acids. The expression levels of ncx in the sexual development stage and asexual development stage were respectively ∼8.94 times and ∼2.57 times of that in the hyphal formation stage. Therefore, we suggested that ncx gene was up-regulated to resist the sodium stress. The study results provide the basis for further exploring the Ca2+ -signaling mechanism and ion exchanger mechanism.
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Affiliation(s)
- Xiu-Xiu Ren
- College of Agriculture, Guizhou University, Guiyang, PR China.,College of Ecological Engineering, Guizhou University of Engineering Science, Bijie, PR China
| | - Yuchen Wang
- Guizhou Academy of Agricultural Sciences, Guiyang, PR China
| | - YongXiang Liu
- Guizhou Academy of Agricultural Sciences, Guiyang, PR China
| | - Yumei Tan
- Guizhou Academy of Agricultural Sciences, Guiyang, PR China
| | - Chunguang Ren
- Guizhou Academy of Agricultural Sciences, Guiyang, PR China
| | - Yongyi Ge
- Guizhou Academy of Agricultural Sciences, Guiyang, PR China
| | - Zuoyi Liu
- Guizhou Academy of Agricultural Sciences, Guiyang, PR China
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Liu J, Wang Q, Qian SY, Xu WM, Li LL, Ning LM, Ren XX, Lyu F, Cheng YB, Gao LJ, Liu CF, Xu W, Pei L, Lu GP, Chen WM. [Nasal continuous positive airway pressure ventilation in children with community-acquired pneumonia under five years of age: a prospective, multi-center clinical study]. Zhonghua Er Ke Za Zhi 2017; 55:329-333. [PMID: 28482381 DOI: 10.3760/cma.j.issn.0578-1310.2017.05.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Objective: To analyze the clinical characteristics of community-acquired pneumonia (CAP) in children under five years of age and analyze the safety and efficiency of nasal continuous positive airway pressure (NCPAP) ventilation for CAP in this population. Method: This was a prospective multicenter study. Children who were admitted to these six centers with CAP and met the NCPAP ventilation indications, aged from 29 d to 5 years, were continuously included during November 2013 to October 2015. The baseline data were collected and NCPAP ventilation were then followed up by operation standards, and the vital signs and arterial blood gas change at special time points were observed and recorded. Any side effect associated with NCPAP were recorded. For categorical variables, comparisons were performed using Fisher test. Rank-sum test and t test were performed respectively for abnormal and normal distribution continuous variables. The variables pre-NCPAP and post-NCPAP were analyzed by repeated measures ANOVA analysis. Result: Totally 145 children were included, and 13 children were excluded due to incomplete data. One hundred and two children(77.3%)were ≤12 months; 91 children (68.9%) were from rural area. NCPAP ventilation was effective in 123 children, with a response rate of 93.2%, were all discharged with a better condition; it was ineffective in 9 children(6.8%), and they were all intubated and went on mechanical ventilation, 5 were discharged with a better condition, and 4 died after gaving up treatment. The gender, age, body weight, residence, main symptoms, main signs, imaging diagnosis, medications, partial pressure of oxygen(PaO(2)), breath and heart rate before NCPAP treatment of two groups had no significant differences(allP>0.05). The rates of combining underlying diseases, trouble with feeding and cyanosis, and the partial pressure of carbon dioxide(PaCO(2) ) before NCPAP ventilation were higher in NCPAP ineffective group ((59±11 )vs.( 49±11) mmHg, 1 mmHg=0.133 kPa, t=-2.597, P=0.028); while the PaO(2)/fraction of inspiration O(2) (FiO(2) ) before NCPAP was lower((150±37) vs. (207±63) mmHg, t=2.697, P=0.008). The breathing, heart rate and PaCO(2) of NCPAP effective group decreased significantly, while the PaO(2) and PaO(2)/FiO(2) increased significantly after 2, 8, 24 h of NCPAP ventilation(all P=0.000). PaCO(2) in children with hypercapnia before NCPAP ventilation in NCPAP effective group decreased significantly ((48±9), (47±12), (45±11)vs.(58±7)mmHg, all P=0.000). All children tolerated well to NCPAP ventilation, and there were no severe side effects or complications associated with NCPAP ventilation. Conclusion: NCPAP ventilation is safe and effectively improved the oxygenation and hypercapnia in infants with CAP. But it may not work well in children with underlying diseases, manifest as difficulty in feeding/cyanosis and extremely high PaCO(2) or low PaO(2)/FiO(2), and they may need early intubation.
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Affiliation(s)
- J Liu
- Pediatric Intensive Care Unit, Beijing Children's Hospital Affiliated to Capital Medical University, Beijing 100045, China
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Ren XX, Wu XY. [TSLPR/STAT5 signaling modulates innate immunity in corneal fibroblasts triggered by Aspergillus fumigatus]. Zhonghua Yan Ke Za Zhi 2016; 52:206-11. [PMID: 26979118 DOI: 10.3760/cma.j.issn.0412-4081.2016.03.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
OBJECTIVE To study the primary role of TSLPR/STAT5 signaling in inflammatory responses triggered by Aspergillus fumigatus(AF) in telomerase-immortalized human stromal fibroblasts (THSF). METHODS Experimental study. Baseline expression of TSLPR in THSF was assessed by immunofluorescence analysis. Human recombinant TSLP was added. At 5, 15, 30 and 60 min after incubation, cells were harvested for Western blot to assess the protein levels of p-STAT5 and STAT5. After stimulated with AF hyphae for 1, 3, 6, 12, 24 and 48 h, cells were collected for measurement of mRNA of TSLPR and IL-7Rα. After incubated with AF hyphae for 12, 24 and 48 h, cells were harvested for Western blot to assess the protein levels of TSLPR, p-STAT5 and STAT5. Incubation with anti-TSLPR antibody was performed for 4 h, and at 24 h after AF hyphae were added, cells were harvested to assess the protein levels of p-STAT5 and STAT5. RESULTS Immunofluorescence staining evidenced that expression of TSLPR was visualized in THSF. Western blot assay showed that p-STAT5 protein was increased and peaked at 30 min after stimulation with hTSLP (AF group: 8.87±0.75; control group: 1.00±0.14; P<0.01). RT-PCR revealed that the expression levels of TSLPR mRNA were increased after incubation with AF hyphae for 3, 6, 12 and 24 h (AF group: 0.000 50±0.000 07, 0.001 20±0.000 11, 0.002 30±0.000 25 and 0.001 70±0.000 17; control group: 0.000 20±0.000 03, 0.000 20±0.000 05, 0.000 20±0.000 03 and 0.000 20±0.000 04; t=-9.955, -17.329, -16.735 and -18.214, P<0.01), but the expression levels of IL-7Rα mRNA were not increased significantly (t=-0.684,-0.029,-0.319,-1.034, P>0.05). In comparison with the control group, after being challenged with AF hyphae for 24 h, both TSLPR and p-STAT5 protein were increased significantly (p-STAT5: 9.46±2.08 vs. 1.00±0.06; TSLPR: 1.80±0.27 vs. 1.00±0.34; t=-7.055, -3.170, P<0.01). Western blot showed that the elevated p-STAT5 expression levels observed after AF hyphae stimulation can be inhibited by TSLPR antibody (anti-TSLPR-AF: 0.55 ± 0.20; CTR Ab-AF: 1.00 ± 0.08; t=3.506, P<0.05). CONCLUSION TSLP/TSLPR/STAT5 signaling pathway plays an important role in inflammatory responses triggered by AF in THSF.
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Affiliation(s)
- X X Ren
- Department of Ophthalmology, Qilu Hospital of Shandong University, Jinan 250012, China
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Abstract
In May 2011, samples of Chinese cabbage (Brassica campestris L. subsp. chinensis Markino) seedlings at the two-to four-leaf stage with damping-off symptoms were collected from greenhouses in the Tibet Autonomous Region of China. Infected stems of the seedlings were constricted at or near the soil surface. On diseased stems, a light to dark brown coloration was demarcated from healthy tissue. Damping-off and death of seedlings occurred as the lesions enlarged, resulting in a significant reduction of seedlings. Diseased stems were cut into 3-mm-long segments, surface-sterilized with 3.5% sodium hypochlorite for 1 min, and rinsed in sterilized water three times before being placed on water agar. A fungus frequently isolated from diseased plants was hyphal tipped under a dissecting microscope and transferred onto potato dextrose agar (PDA) to obtain a pure culture. The isolate grew slowly on PDA at 25°C with a 12-h photoperiod. The colony was white at first and gradually turned gray or grayish-green. No conidia or chlamydospores developed. However, conidia were produced on potato-carrot agar. Conidia were yellow-brown, obpyriform or obpyriform with beaks, had two to eight transverse septa, one to three vertical or oblique septa, and were produced solitarily or often in chains of two or three and measured 43.5 to 85.2 × 21.5 to 28.0 μm. A few conidia without beaks were also present and were nearly round and slightly smaller than the conidia with beaks. Several adjacent chlamydospores with thickened walls were often intercalary. The isolate was tentatively identified as Alternaria japonica based on its morphological characteristics (1,2). For molecular analyses, the internal transcribed spacer (ITS) regions of ribosomal DNA from the isolate were amplified with universal primers ITS1 and ITS4. The resulting sequence (Accession No. JN654465) submitted to GenBank had a 99% identity to that of A. japonica (Accession No. AY154703.1) isolated from leaves of Raphanus sativus. To confirm the pathogenicity of A. japonica, nine healthy 10-day-old Chinese cabbage seedlings were inoculated at the stem base with one PDA plug from a 6-day-old culture, with nine noninoculated (PDA plus only) seedlings serving as controls. Two days after inoculation, symptoms similar to those on the naturally infected plants developed on the inoculated seedlings. No symptoms developed on the controls. The pathogen was reisolated from the stems of inoculated and diseased seedlings. To our knowledge, this is the first report of A. japonica leading to damping off on Chinese cabbage seedlings in China. References: (1) M. P. Corlett and M. E. Corlett. Can. J. Plant Pathol. 21:298, 1999. (2) T. Y. Zhang. Flora Fungorum Sinicorum: Alternaria (in Chinese) Vol. 16. Science Press, Beijing, 2003.
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Affiliation(s)
- X X Ren
- Department of Plant Pathology, China Agricultural University, Beijing 100193, China
| | - G Z Zhang
- Department of Plant Pathology, China Agricultural University, Beijing 100193, China
| | - W A Dai
- Institute of Vegetables, Tibet Academy of Agricultural and Animal Husbandry Sciences, Lhasa 850032, China
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