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Wang YW, Zhang H, Cao P, Zhang WF, Tong L, Li SH, Chen Y, Han C, Guan H. [Influences and mechanism of extracellular vesicles from dermal papilla cells of mice on human hypertrophic scar fibroblasts]. Zhonghua Shao Shang Yu Chuang Mian Xiu Fu Za Zhi 2024; 40:258-265. [PMID: 38548396 DOI: 10.3760/cma.j.cn501225-20231107-00185] [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] [Grants] [Subscribe] [Scholar Register] [Indexed: 04/02/2024]
Abstract
Objective: To investigate the influences and mechanism of extracellular vesicles from dermal papilla cells (DPC-EVs) of mice on human hypertrophic scar fibroblasts (HSFs). Methods: The study was an experimental research. The primary dermal papilla cells (DPCs) of whiskers were extracted from 10 6-week-old male C57BL/6J mice and identified successfully. The DPC-EVs were extracted from the 3rd to 5th passage DPCs by ultracentrifugation, and the morphology was observed through transmission electron microscope and the particle diameter was detected by nanoparticle tracking analyzer (n=3) at 24 h after culture. The 3rd passage of HSFs were divided into DPC-EV group and phosphate buffer solution (PBS) group, which were cultured with DPC-EVs and PBS, respectively. The cell scratch test was performed and cell migration rate at 24 h after scratching was calculated (n=5). The cell proliferation levels at 0 (after 12 h of starvation treatment and before adding DPC-EVs or PBS), 24, 48, 72, and 96 h after culture were detected by using cell counting kit 8 (n=4). The protein expressions of α-smooth muscle actin (α-SMA) and collagen typeⅠ (ColⅠ) in cells at 24 h after culture were detected by immunofluorescence method and Western blotting, and the protein expression of Krüppel-like factor 4 (KLF4) in cells at 24 h after culture was detected by Western blotting. After the 3rd passage of HSFs were cultured with DPC-EVs for 24 h, the cells were divided into blank control group, KLF4 knockdown group, and KLF4 overexpression group according to the random number table. The cells in blank control group were only routinely cultured for 48 h. The cells in KLF4 knockdown group and KLF4 overexpression group were incubated with KLF4 knockdown virus for 24 h, then the cells in KLF4 knockdown group were routinely cultured for 24 h while the cells in KLF4 overexpression group were incubated with KLF4 overexpression virus for 24 h. The protein expressions of KLF4, α-SMA, and ColⅠ in cells were detected by Western blotting at 48 h after culture. Results: At 24 h after culture, the extracted DPC-EVs showed vesicular structure with an average particle diameter of 108.8 nm. At 24 h after scratching, the migration rate of HSFs in PBS group was (54±10)%, which was significantly higher than (29±8)% in DPC-EV group (t=4.37, P<0.05). At 48, 72, and 96 h after culture, the proliferation levels of HSFs in DPC-EV group were significantly lower than those in PBS group (with t values of 4.06, 5.76, and 6.41, respectively, P<0.05). At 24 h after culture, the protein expressions of α-SMA and ColⅠ of HSFs in DPC-EV group were significantly lower than those in PBS group, while the protein expression of KLF4 was significantly higher than that in PBS group. At 48 h after culture, compared with those in blank control group, the protein expression of KLF4 of HSFs in KLF4 knockdown group was down-regulated, while the protein expressions of α-SMA and ColⅠ were both up-regulated; compared with those in KLF4 knockdown group, the protein expression of KLF4 of HSFs in KLF4 overexpression group was up-regulated, while the protein expressions of ColⅠ and α-SMA were down-regulated. Conclusions: The DPC-EVs of mice can inhibit the proliferation and migration of human HSFs and significantly inhibit the expressions of fibrosis markers α-SMA and ColⅠ in human HSFs by activating KLF4.
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Affiliation(s)
- Y W Wang
- Department of Burns and Cutaneous Surgery, Burn Center of PLA, the First Affiliated Hospital of Air Force Medical University, Xi'an 710032, China
| | - H Zhang
- Department of Burns and Cutaneous Surgery, Burn Center of PLA, the First Affiliated Hospital of Air Force Medical University, Xi'an 710032, China
| | - P Cao
- Burns & Trauma Treatment Center, Affiliated Hospital of Jiangnan University, Wuxi 214122, China
| | - W F Zhang
- Department of Burns and Cutaneous Surgery, Burn Center of PLA, the First Affiliated Hospital of Air Force Medical University, Xi'an 710032, China
| | - L Tong
- Department of Burns and Cutaneous Surgery, Burn Center of PLA, the First Affiliated Hospital of Air Force Medical University, Xi'an 710032, China
| | - S H Li
- Department of Burns and Cutaneous Surgery, Burn Center of PLA, the First Affiliated Hospital of Air Force Medical University, Xi'an 710032, China
| | - Y Chen
- Department of Burns and Cutaneous Surgery, Burn Center of PLA, the First Affiliated Hospital of Air Force Medical University, Xi'an 710032, China
| | - C Han
- Department of Burns and Cutaneous Surgery, Burn Center of PLA, the First Affiliated Hospital of Air Force Medical University, Xi'an 710032, China
| | - H Guan
- Department of Burns and Cutaneous Surgery, Burn Center of PLA, the First Affiliated Hospital of Air Force Medical University, Xi'an 710032, China
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Subotic-Kerry M, Werner-Seidler A, Corkish B, Batterham PJ, Sicouri G, Hudson J, Christensen H, O'Dea B, Li SH. Protocol for a randomised controlled trial evaluating the effect of a CBT-I smartphone application (Sleep Ninja®) on insomnia symptoms in children. BMC Psychiatry 2023; 23:684. [PMID: 37730577 PMCID: PMC10510253 DOI: 10.1186/s12888-023-05185-x] [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] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Accepted: 09/12/2023] [Indexed: 09/22/2023] Open
Abstract
BACKGROUND Sleep is necessary for healthy development and mental wellbeing. Despite this, many children do not get the recommended duration of sleep each night, and many experience sleep problems. Although treatable, existing interventions for sleep disturbance are time-consuming, burdensome for families, and focus on providing behavioural strategies to parents rather than upskilling children directly. To address this gap, we modified Sleep Ninja®, an evidence-based cognitive behavioural therapy for insomnia (CBT-I) smartphone app for adolescent sleep disturbance, to be appropriate for 10 to 12 year olds. Here, we describe the protocol for a randomised controlled trial to evaluate the effect of Sleep Ninja on insomnia and other outcomes, including depression, anxiety, sleep quality, and daytime sleepiness, and explore effects on the emergence of Major Depressive Disorder (MDD), compared to an active control group. METHODS We aim to recruit 214 children aged 10 to 12 years old experiencing disturbed sleep. Participants will be screened for inclusion, complete the baseline assessment, and then be randomly allocated to receive Sleep Ninja, or digital psychoeducation flyers (active control) for 6-weeks. The primary outcome, insomnia symptoms, along with depression, anxiety, sleep quality, and daytime sleepiness will be assessed at 6-weeks (primary endpoint), 3-months, and 9-months post-baseline (secondary and tertiary endpoints, respectively). A mixed model repeated measures analytic approach will be used to conduct intention-to-treat analyses to determine whether reductions in insomnia and secondary outcomes are greater for those receiving Sleep Ninja relative to the control condition at the primary and secondary endpoints. The difference in relative risk for MDD onset will be explored at 9-months and compared between conditions. DISCUSSION This is the first clinical trial examining the effects of a CBT-I smartphone app in children experiencing sleep disturbance. Results will provide empirical evidence about the effects of Sleep Ninja on insomnia and other mental health outcomes. TRIAL REGISTRATION Australian New Zealand Clinical Trials Registry (ACTRN12623000587606). UNIVERSAL TRIAL NUMBER U1111-1294-4167.
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Affiliation(s)
- M Subotic-Kerry
- Black Dog Institute, University of New South Wales, Sydney, NSW, Australia
| | - A Werner-Seidler
- Black Dog Institute and School of Psychology, University of New South Wales, Sydney, NSW, Australia
| | - B Corkish
- Black Dog Institute, University of New South Wales, Sydney, NSW, Australia
| | - P J Batterham
- Centre for Mental Health Research, Australian National University, Canberra, Australia
| | - G Sicouri
- Black Dog Institute and School of Psychology, University of New South Wales, Sydney, NSW, Australia
| | - J Hudson
- Black Dog Institute and School of Psychology, University of New South Wales, Sydney, NSW, Australia
| | - H Christensen
- Faculty of Medicine and Health, University of New South Wales, Sydney, NSW, Australia
| | - B O'Dea
- Black Dog Institute, University of New South Wales, Sydney, NSW, Australia
| | - S H Li
- Black Dog Institute and School of Psychology, University of New South Wales, Sydney, NSW, Australia.
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Xie C, Shi BB, Liu GH, Li SH, Kang ZL. Using Potassium Bicarbonate to Improve the Water-Holding Capacity, Gel and Rheology Characteristics of Reduced-Phosphate Silver Carp Batters. Molecules 2023; 28:5608. [PMID: 37513480 PMCID: PMC10386509 DOI: 10.3390/molecules28145608] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2023] [Revised: 07/14/2023] [Accepted: 07/18/2023] [Indexed: 07/30/2023] Open
Abstract
To study the use of partial or total potassium bicarbonate (PBC) to replace sodium tripolyphosphate (STPP) on reduced-phosphate silver carp batters, all the batters were composed of silver carp surimi, pork back fat, ice water, spices, sugar, and sodium chloride. Therein, the sample of T1 contained 4 g/kg STPP; T2 contained 1 g/kg PBC, 3 g/kg STPP; T3 contained 2 g/kg PBC, 2 g/kg STPP; T4 contained 3 g/kg PBC, 1 g/kg STPP; T5 contained 4 g/kg PBC, and they were all produced using a bowl chopper. The changes in pH, whiteness, water- and oil-holding capacity, gel and rheological properties, as well as protein conformation were investigated. The pH, cooking yield, water- and oil-holding capacity, texture properties, and the G' values at 90 °C of the reduced-phosphate silver carp batters with PBC significantly increased (p < 0.05) compared to the sample without PBC. Due to the increasing pH and enhanced ion strength, more β-sheet and β-turns structures were formed. Furthermore, by increasing PBC, the pH significantly increased (p < 0.05) and the cooked silver carp batters became darkened. Meanwhile, more CO2 was generated, which destroyed the gel structure, leading the water- and oil-holding capacity, texture properties, and G' values at 90 °C to be increased and then decreased. Overall, using PBC partial as a substitute of STPP enables reduced-phosphate silver carp batter to have better gel characteristics and water-holding capacity by increasing its pH and changing its rheology characteristic and protein conformation.
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Affiliation(s)
- Chun Xie
- School of Pharmacy, Shangqiu Medical College, Shangqiu 476100, China
| | - Bei-Bei Shi
- School of Pharmacy, Shangqiu Medical College, Shangqiu 476100, China
| | - Guang-Hui Liu
- School of Pharmacy, Shangqiu Medical College, Shangqiu 476100, China
| | - Si-Han Li
- School of Pharmacy, Shangqiu Medical College, Shangqiu 476100, China
| | - Zhuang-Li Kang
- Engineering Research Center for Huaiyang Cuisin of Jiangsu Province, College of Tourism and Culinary, Yangzhou University, Yangzhou 225127, China
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Han XX, Li J, Sun RY, Li SH, Li J, Xu X. [Meta analysis of the prevalence and influencing factors of WMSDs among dentists in China]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2023; 41:358-363. [PMID: 37248082 DOI: 10.3760/cma.j.cn121094-20220801-00385] [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] [Grants] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Objective: To explore the relevant factors of work-related musculoskeletal disorders (WMSDs) among dentists through Meta analysis, providing a basis for the prevention and control of WMSDs among dentists. Methods: In April 2022, cross-sectional research literatures on the prevalence correlation of WMSDs among Chinese dentists were searched in databases such as China National Knowledge Infrastructure, Wanfang, VIP, PubMed, Web of Science, and Em Base database. The search was conducted from the establishment of the database until April 2022, literatures were selected using keywords such as musculoskeletal disorders and dentists. To extract gender, age, length of service, disease classification and other related influencing factors as indicator, and prevalence was selected as the outcome indicator. After evaluating the quality of the literatures, RevMan 5.3 software was used to calculate the combined RD (95%CI) values of the included literatures. Results: A total of 15 articles were included, with a total sample size of 3646 people. Meta analysis results showed that the prevalence of WMSDs among dentists in China was 80%, and the top three parts of the incidence rates were 65% of the waist, 58% of the neck, and 50% of the back. Gender, age, length of service, region and disease classification all increased the risk of WMSDs, and the combined effect size were 75%, 78%, 71%, 77% and 82% respectively (P<0.05) . Conclusion: The occurrence of WMSDs among dentists in China is related to multiple factors such as gender, age, length of service and disease classification. The above risk factors should be taken into account in the workplace and preventive measures should be actively implemented to prolong the working life of dentists.
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Affiliation(s)
- X X Han
- Department of Stomatology, School of Stomatology, Weifang Medical College, Weifang 261053, China
| | - J Li
- Weifang People's Hospital Stomatological Clinic, Weifang 261000, China
| | - R Y Sun
- Department of Stomatology, School of Stomatology, Weifang Medical College, Weifang 261053, China
| | - S H Li
- Department of Stomatology, School of Stomatology, Weifang Medical College, Weifang 261053, China
| | - J Li
- Department of Preventive Medicine, School of Public Health, Weifang Medical College, Weifang 261053, China
| | - X Xu
- Department of Stomatology, School of Stomatology, Weifang Medical College, Weifang 261053, China
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Cao P, Wang YW, Guan H, Yang YS, Li SH, Chen Y, Zhu C, Wan Y, Ren LY, Yao M. [Effects of mechanical tension on the formation of hypertrophic scars in rabbit ears and transforming growth factor-β 1/Smad signaling pathway]. Zhonghua Shao Shang Yu Chuang Mian Xiu Fu Za Zhi 2022; 38:1162-1169. [PMID: 36594147 DOI: 10.3760/cma.j.cn501120-20211213-00412] [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] [Grants] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Objective: To explore the effects of mechanical tension on the formation of hypertrophic scars in rabbit ears and transforming growth factor-β1 (TGF-β1)/Smad signaling pathway. Methods: The experimental research method was adopted. Six New Zealand white rabbits, male or female, aged 3-5 months were used and 5 full-thickness skin defect wounds were made on the ventral surface of each rabbit ear. The appearance of all rabbit ear wounds was observed on post surgery day (PSD) 0 (immediately), 7, 14, 21, and 28. On PSD 28, the scar formation rate was calculated. Three mature scars in the left ear of each rabbit were included in tension group and the arch was continuously expanded with a spiral expander. Three mature scars in the right ear of each rabbit were included in sham tension group and only the spiral expander was sutured without expansion. There were 18 scars in each group. After mechanical tension treatment (hereinafter referred to as treatment) for 40 days, the color and texture of scar tissue in the two groups were observed. On treatment day 40, the scar elevation index (SEI) was observed and calculated; the histology was observed after hematoxylin eosin staining, and the collagen morphology was observed after Masson staining; mRNA expressions of TGF-β1, Smad3, collagen Ⅰ, collagen Ⅲ, and α-smooth muscle actin (α-SMA) in scar tissue were detected by real-time fluorescence quantitative reverse transcription polymerase chain reaction; and the protein expressions of TGF-β1, collagen Ⅰ, collagen Ⅲ, and α-SMA, and phosphorylation level of Smad3 in scar tissue were detected by Western blotting. The number of samples of each group in the experiments was 3. Data were statistically analyzed with independent sample t test. Results: On PSD 0, 5 fresh wounds were formed on all the rabbit ears; on PSD 7, the wounds were scabbed; on PSD 14, most of the wounds were epithelialized; on PSD 21, all the wounds were epithelialized; on PSD 28, obvious hypertrophic scars were formed. The scar formation rate was 75% (45/60) on PSD 28. On treatment day 40, the scar tissue of rabbit ears in tension group was more prominent than that in sham tension group, the scar tissue was harder and the color was more ruddy; the SEI of the scar tissue of rabbit ears in tension group (2.02±0.08) was significantly higher than 1.70±0.08 in sham tension group (t=5.07, P<0.01). On treatment day 40, compared with those in sham tension group, the stratum corneum of scar tissue became thicker, and a large number of new capillaries, inflammatory cells, and fibroblasts were observed in the dermis, and collagen was more disordered, with nodular or swirling distribution in the scar tissue of rabbit ears in tension group. On treatment day 40, the mRNA expressions of TGF-β1, Smad3, collagen Ⅰ, collagen Ⅲ, and α-SMA in the scar tissue of rabbit ears in tension group were respectively 1.81±0.25, 5.71±0.82, 7.86±0.56, 4.35±0.28, and 5.89±0.47, which were significantly higher than 1.00±0.08, 1.00±0.12, 1.00±0.13, 1.00±0.14, and 1.00±0.14 in sham tension group (with t values of 5.36, 9.82, 20.60, 18.26, and 17.13, respectively, all P<0.01); the protein expressions of TGF-β1, collagen Ⅰ, collagen Ⅲ, and α-SMA, and phosphorylation level of Smad3 in the scar tissue of rabbit ears in tension group were respectively 0.865±0.050, 0.895±0.042, 0.972±0.027, 1.012±0.057, and 0.968±0.087, which were significantly higher than 0.657±0.050, 0.271±0.029, 0.631±0.027, 0.418±0.023, and 0.511±0.035 in sham tension group (with t values of 5.08, 21.27, 15.55, 16.70, and 8.40, respectively, all P<0.01). Conclusions: Mechanical tension can inhibit the regression of hypertrophic scars in rabbit ears through stimulating the hyperplasia of scars, inhibiting the normal arrangement of dermal collagen fibers, and intensifying the deposition of collagen fibers, and the mechanism may be related to the activation of TGF-β1/Smad signaling pathway by mechanical tension.
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Affiliation(s)
- P Cao
- Department of Burns and Plastic Surgery, General Hospital of Ningxia Medical University, Yinchuan 750004, China
| | - Y W Wang
- Department of Burns and Cutaneous Surgery, Burn Center of PLA, the First Affiliated Hospital of Air Force Medical University, Xi'an 710032, China
| | - H Guan
- Department of Burns and Cutaneous Surgery, Burn Center of PLA, the First Affiliated Hospital of Air Force Medical University, Xi'an 710032, China
| | - Y S Yang
- Department of Burns and Cutaneous Surgery, Burn Center of PLA, the First Affiliated Hospital of Air Force Medical University, Xi'an 710032, China
| | - S H Li
- Department of Burns and Cutaneous Surgery, Burn Center of PLA, the First Affiliated Hospital of Air Force Medical University, Xi'an 710032, China
| | - Y Chen
- Department of Burns and Cutaneous Surgery, Burn Center of PLA, the First Affiliated Hospital of Air Force Medical University, Xi'an 710032, China
| | - C Zhu
- Department of Burns and Cutaneous Surgery, Burn Center of PLA, the First Affiliated Hospital of Air Force Medical University, Xi'an 710032, China
| | - Y Wan
- Department of Burns and Plastic Surgery, General Hospital of Ningxia Medical University, Yinchuan 750004, China
| | - L Y Ren
- Department of Burns and Plastic Surgery, General Hospital of Ningxia Medical University, Yinchuan 750004, China
| | - M Yao
- Department of Burns and Plastic Surgery, General Hospital of Ningxia Medical University, Yinchuan 750004, China
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Wang YW, Liu Y, Cao P, Zhang QY, Chen Y, Li SH, Guan H. [Effects of Krüppel-like factor 4 on inflammatory response and organ injury in septic mice]. Zhonghua Shao Shang Yu Chuang Mian Xiu Fu Za Zhi 2022; 38:1047-1056. [PMID: 36418262 DOI: 10.3760/cma.j.cn501225-20220111-00005] [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] [Grants] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Objective: To explore the expression characteristics and role of Krüppel-like factor 4 (KLF4) in macrophage inflammatory response and its effects on inflammatory response and organ injury in septic mice, so as to lay a theoretical foundation for targeted treatment of burns and trauma sepsis. Methods: The method of experimental research was used. Mouse RAW264.7 macrophages and primary peritoneal macrophages (PMs) isolated from 10 male C57BL/6J mice aged 6-8 weeks were used for the experiments. RAW264.7 macrophages and PMs were treated with endotoxin/lipopolysaccharide (LPS) for 0 (without treatment), 1, 2, 4, 6, 8, 12, and 24 h, respectively, to establish macrophage inflammatory response model. The mRNA expression of interleukin 1β (IL-1β), IL-6, CC chemokine ligand 2 (CCL2) and tumor necrosis factor-α (TNF-α) were detected by real-time fluorescence quantitative reverse transcription polymerase chain reaction (RT-PCR), and the LPS treatment time was determined for some of the subsequent experiments. RAW264.7 macrophages were treated with LPS for 0 and 8 h, the localization and protein expression of KLF4 were detected by immunofluorescence method, transcriptome sequencing of the cells was performed using the high-throughput sequencing technology platform, and the differently expressed genes (DEGs) between the two time points treated cells were screened by DESeq2 software. RAW264.7 macrophages and PMs were treated with LPS for 0, 1, 2, 4, 6, 8, 12, and 24 h, respectively, and the mRNA and protein expressions of KLF4 were detected by real-time fluorescence quantitative RT-PCR and Western blotting, respectively. RAW264.7 macrophages were divided into negative control (NC) group and KLF4-overexpression group according to the random number table, which were treated with LPS for 0 and 8 h respectively after transfection of corresponding plasmid. The mRNA expressions of KLF4, IL-1β, IL-6, CCL2, and TNF-α were detected by real-time fluorescence quantitative RT-PCR, while the protein expression of KLF4 was detected by Western blotting. The number of samples in aforementioned experiments was all 3. Forty male C57BL/6J mice aged 6-8 weeks were divided into KLF4-overexpression group and NC group (with 20 mice in each group) according to the random number table, and the sepsis model of cecal ligation perforation was established after the corresponding transfection injection was injected respectively. Twelve mice were selected from each of the two groups according to the random number table, and the survival status within 72 hours after modeling was observed. Eight hours after modeling, the remaining 8 mice in each of the two groups were selected, the eyeball blood samples were collected to detect the levels of IL-1β and IL-6 in serum by enzyme-linked immunosorbent assay, and the levels of alanine aminotransferase (ALT) and aspartate aminotransferase (AST) in serum by dry chemical method. Subsequently, the heart, lung, and liver tissue was collected, and the injury was observed after hematoxylin-eosin staining. Data were statistically analyzed with independent sample t test, Cochran & Cox approximate t test, one-way analysis of variance, Dunnett test, Brown-Forsythe and Welch one-way analysis of variance, Dunnett T3 test, log-rank (Mantel-Cox) test. Results: Compared with that of LPS treatment for 0 h, the mRNA expressions of IL-1β in RAW264.7 macrophages treated with LPS for 6 h and 8 h, the mRNA expressions of IL-6 in RAW264.7 macrophages treated with LPS for 4-12 h, the mRNA expressions of CCL2 in RAW264.7 macrophages treated with LPS for 8 h and 12 h, and the mRNA expressions of TNF-α in RAW264.7 macrophages treated with LPS for 4-8 h were significantly up-regulated (P<0.05 or P<0.01), while the mRNA expressions of IL-1β and CCL2 in PMs treated with LPS for 4-8 h, the mRNA expressions of IL-6 in PMs treated with LPS for 2-24 h, and the mRNA expressions of TNF-α in PMs treated with LPS for 2-12 h were significantly up-regulated (P<0.05 or P<0.01). Eight hours was selected as the LPS treatment time for some of the subsequent experiments. KLF4 mainly located in the nucleus of RAW264.7 macrophages. Compared with those of LPS treatment for 0 h, the protein expression of KLF4 in RAW264.7 macrophages treated with LPS for 8 h was obviously decreased, and there were 1 470 statistically differentially expressed DEGs in RAW264.7 macrophages treated with LPS for 8 h, including KLF4 with significantly down-regulated transcriptional expression (false discovery rate<0.05, log2 (fold change)=-2.47). Compared with those of LPS treatment for 0 h, the mRNA expressions of KLF4 in RAW264.7 macrophages treated with LPS for 6-24 h, the protein expressions of KLF4 in RAW264.7 macrophages and PMs treated with LPS for 1-24 h, and the mRNA expressions of KLF4 in PM treated with LPS for 4-24 h were significantly decreased (P<0.05 or P<0.01). Compared with those in NC group, the mRNA (with t' values of 17.03 and 8.61, respectively, P<0.05 or P<0.01) and protein expressions of KLF4 in RAW264.7 macrophages treated with LPS for 0 h and 8 h in KLF4-overexpression group were significantly increased, the mRNA expressions of IL-6 and CCL2 increased significantly in RAW264.7 macrophages treated with LPS for 0 h (with t values of 6.29 and 3.40, respectively, P<0.05 or P<0.01), while the mRNA expressions of IL-1β, IL-6, CCL2, and TNF-α decreased significantly in RAW264.7 macrophages treated with LPS for 8 h (with t values of 10.52, 9.60, 4.58, and 8.58, respectively, P<0.01). The survival proportion of mice within 72 h after modeling in KLF4-overexpression group was significantly higher than that in NC group (χ2=4.01, P<0.05). Eight hours after modeling, the serum levels of IL-1β, IL-6 and ALT, AST of mice in KLF4-overexpression group were (161±63), (476±161) pg/mL and (144±24), (264±93) U/L, respectively, which were significantly lower than (257±58), (654±129) pg/mL and (196±27), (407±84) U/L (with t values of 3.16, 2.44 and 4.04, 3.24, respectively, P<0.05 or P<0.01) in NC group. Eight hours after modeling, compared with those in NC group, the disorder of tissue structure of heart, lung, and liver, inflammatory exudation, and pathological changes of organ parenchyma cells in KLF4-overexpression group were obviously alleviated. Conclusions: The expression of KLF4 is significantly down-regulated in LPS-induced macrophage inflammatory response, which significantly inhibits the macrophage inflammatory response. KLF4 significantly enhances the survival rate of septic mice and alleviates inflammatory response and sepsis-related organ injury.
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Affiliation(s)
- Y W Wang
- Department of Burns and Cutaneous Surgery, Burn Center of PLA, the First Affiliated Hospital of Air Force Medical University, Xi'an 710032, China
| | - Y Liu
- Department of Burns and Cutaneous Surgery, Burn Center of PLA, the First Affiliated Hospital of Air Force Medical University, Xi'an 710032, China
| | - P Cao
- Department of Burns and Cutaneous Surgery, Burn Center of PLA, the First Affiliated Hospital of Air Force Medical University, Xi'an 710032, China
| | - Q Y Zhang
- Department of the Third Student Battalion, School of Basic Medical Sciences of Air Force Medical University, Xi'an 710032, China
| | - Y Chen
- Department of Burns and Cutaneous Surgery, Burn Center of PLA, the First Affiliated Hospital of Air Force Medical University, Xi'an 710032, China
| | - S H Li
- Department of Burns and Cutaneous Surgery, Burn Center of PLA, the First Affiliated Hospital of Air Force Medical University, Xi'an 710032, China
| | - H Guan
- Department of Burns and Cutaneous Surgery, Burn Center of PLA, the First Affiliated Hospital of Air Force Medical University, Xi'an 710032, China
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Yang CY, Zhao XM, Lu DL, Zhang YQ, Qian JH, Wang X, Li SH, He ZQ, Qian D, Liu Y, Ji PH, Zhou RM, Zhang HW. [Epidemiological investigation on a visceral leishmaniasis case in Zhengzhou City of Henan Province]. Zhongguo Xue Xi Chong Bing Fang Zhi Za Zhi 2022; 34:635-638. [PMID: 36642906 DOI: 10.16250/j.32.1374.2022048] [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: 01/17/2023]
Abstract
OBJECTIVE To perform an epidemiological investigation on a case with visceral leishmaniasis in Zhengzhou City, Henan Province, and to identify the source of infection, so as to illustrate the transmission chain and assess the risk of local leishmaniasis transmission. METHODS The medical data were collected from a case with visceral leishmaniasis in Zhengzhou City, and the patient's bone marrow smears were detected by microscopy. Serum anti-Leishmania antibody test and PCR assay were performed among high-risk residents and all dogs in the village where the patient lived. Sandflies were captured using light traps and artificial traps, and the captured female Phlebotomus chinensis was subjected to PCR assay. The internal transcribed spacer 1 (ITS1) gene was amplified with a nested PCR assay using the genomic DNA extracted from visceral leishmaniasis patients, positive dogs and sandflies, and the sequences were aligned with those download from NCBI. In addition, a phylogenetic tree was created based on the ITS1 gene. RESULTS The visceral leishmaniasis patient had recurrent irregular fever, reduced complete blood counts, low hemoglobin, and a large number of Leishmania amastigotes in bone marrow smears, and was therefore diagnosed as visceral leishmaniasis. Both rk39 rapid diagnostic test and PCR assay tested negative among 324 residents living neighboring the patient's residence, while 21.39% (43/201) dogs were positive for rk39 rapid diagnostic test and 13.93% (28/201) positive for PCR assay. There were 17 female Ph. chinensis tested positive for Leishmania (0.82%) by PCR assay, and the ITS gene sequences from visceral leishmaniasis patients, positive dogs and sandflies shared a 100% homology with L. infantum. The Leishmania species was therefore characterized as L. infantum. CONCLUSIONS L. infantum infection occurs in visceral leishmaniasis patients, dogs and sandflies in Zhengzhou City, indicating a complete transmission chain and a high transmission risk of visceral leishmaniasis by L. infantum. Intensified control measures are required to prevent local transmission of leishmaniasis in Zhengzhou City.
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Affiliation(s)
- C Y Yang
- Henan Provincial Center for Disease Control and Prevention, Henan Provincial Key Laboratory for Pathogenic Microorganisms of Infectious Diseases, Zhengzhou, Henan 450016, China
| | - X M Zhao
- The First Affiliated Hospital of Zhengzhou University, Henan Province, China
| | - D L Lu
- Henan Provincial Center for Disease Control and Prevention, Henan Provincial Key Laboratory for Pathogenic Microorganisms of Infectious Diseases, Zhengzhou, Henan 450016, China
| | - Y Q Zhang
- Zhengzhou Center for Disease Control and Prevention, Henan Province, China
| | - J H Qian
- Xinmi Center for Disease Control and Prevention, Henan Province, China
| | - X Wang
- Erqi District Center for Disease Control and Prevention, Zhengzhou City, Henan Province, China
| | - S H Li
- Henan Provincial Center for Disease Control and Prevention, Henan Provincial Key Laboratory for Pathogenic Microorganisms of Infectious Diseases, Zhengzhou, Henan 450016, China
| | - Z Q He
- Henan Provincial Center for Disease Control and Prevention, Henan Provincial Key Laboratory for Pathogenic Microorganisms of Infectious Diseases, Zhengzhou, Henan 450016, China
| | - D Qian
- Henan Provincial Center for Disease Control and Prevention, Henan Provincial Key Laboratory for Pathogenic Microorganisms of Infectious Diseases, Zhengzhou, Henan 450016, China
| | - Y Liu
- Henan Provincial Center for Disease Control and Prevention, Henan Provincial Key Laboratory for Pathogenic Microorganisms of Infectious Diseases, Zhengzhou, Henan 450016, China
| | - P H Ji
- Henan Provincial Center for Disease Control and Prevention, Henan Provincial Key Laboratory for Pathogenic Microorganisms of Infectious Diseases, Zhengzhou, Henan 450016, China
| | - R M Zhou
- Henan Provincial Center for Disease Control and Prevention, Henan Provincial Key Laboratory for Pathogenic Microorganisms of Infectious Diseases, Zhengzhou, Henan 450016, China
| | - H W Zhang
- Henan Provincial Center for Disease Control and Prevention, Henan Provincial Key Laboratory for Pathogenic Microorganisms of Infectious Diseases, Zhengzhou, Henan 450016, China
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Xia YF, Bao GM, Peng XX, Wu XY, Lu HF, Zhong YF, Li W, He JX, Liu SY, Fan Q, Li SH, Xiao W, Yuan HQ. A highly water-stable dual-emission fluorescent probe based on Eu3+-loaded MOF for the simultaneous detection and quantification of Fe3+ and Al3+ in swine wastewater. Anal Chim Acta 2022; 1221:340115. [DOI: 10.1016/j.aca.2022.340115] [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] [Received: 03/31/2022] [Revised: 06/03/2022] [Accepted: 06/21/2022] [Indexed: 11/01/2022]
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Fan Q, Bao GM, Li SH, Liu SY, Cai XR, Xia YF, Li W, Wang XY, Deng K, Yuan HQ. A dual-channel "on-off-on" fluorescent probe for the detection and discrimination of Fe 3+ and Hg 2+ in piggery feed and swine wastewater. Anal Methods 2022; 14:2318-2328. [PMID: 35639468 DOI: 10.1039/d2ay00629d] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Blue-fluorescent blood-CDs were synthesized through a one-pot hydrothermal method using a mixture of chicken blood and trisodium citrate and then explored as a fluorescent probe for detecting Fe3+ and Hg2+. The probe showed excellent selectivity and sensitivity towards Fe3+ and Hg2+ with a dramatic "on-off" fluorescence response. F- recovered the fluorescence quenching by Fe3+, and Al3+ recovered the fluorescence quenching by Hg2+, showing an "off-on" fluorescence response. The blood-CDs were used as an "on-off-on" dual-channel fluorescent sensor for the detection and discrimination of Fe3+ and Hg2+ ions. The probe showed wide linear ranges for determination of Fe3+ (0-100 μM) and Hg2+ (0-120 μM) with low detection limits of 0.23 μM for Fe3+ and 0.17 μM for Hg2+. This probe was practically applied for the determination of Fe3+ and Hg2+ in piggery feed and wastewater with good recoveries. This work provides a fluorescent probe for the quantification of Fe3+ and Hg2+ in livestock feed and environmental water samples.
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Affiliation(s)
- Qing Fan
- Institute of Veterinary Drug/Biotechnological Engineering Center for Pharmaceutical Research and Development, Jiangxi Agricultural University, Nanchang 330045, PR China
- College of Chemistry and Materials, Jiangxi Agricultural University, Nanchang 330045, PR China.
| | - Guang-Ming Bao
- Institute of Veterinary Drug/Biotechnological Engineering Center for Pharmaceutical Research and Development, Jiangxi Agricultural University, Nanchang 330045, PR China
- School of Biological Engineering and Food, Hubei University of Technology, Wuhan 430068, PR China
| | - Si-Han Li
- Institute of Veterinary Drug/Biotechnological Engineering Center for Pharmaceutical Research and Development, Jiangxi Agricultural University, Nanchang 330045, PR China
| | - Si-Yi Liu
- Institute of Veterinary Drug/Biotechnological Engineering Center for Pharmaceutical Research and Development, Jiangxi Agricultural University, Nanchang 330045, PR China
| | - Xin-Ru Cai
- Institute of Veterinary Drug/Biotechnological Engineering Center for Pharmaceutical Research and Development, Jiangxi Agricultural University, Nanchang 330045, PR China
| | - Yi-Fan Xia
- College of Chemistry and Materials, Jiangxi Agricultural University, Nanchang 330045, PR China.
| | - Wei Li
- College of Chemistry and Materials, Jiangxi Agricultural University, Nanchang 330045, PR China.
| | - Xiao-Ying Wang
- Institute of Veterinary Drug/Biotechnological Engineering Center for Pharmaceutical Research and Development, Jiangxi Agricultural University, Nanchang 330045, PR China
| | - Ke Deng
- Institute of Veterinary Drug/Biotechnological Engineering Center for Pharmaceutical Research and Development, Jiangxi Agricultural University, Nanchang 330045, PR China
| | - Hou-Qun Yuan
- College of Chemistry and Materials, Jiangxi Agricultural University, Nanchang 330045, PR China.
- School of Biological Engineering and Food, Hubei University of Technology, Wuhan 430068, PR China
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Li SH, Sun J, Chen W. [Study on the effect and mechanisms of SIGLEC-15 on laryngeal squamous cell carcinoma]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2022; 57:724-731. [PMID: 35725316 DOI: 10.3760/cma.j.cn115330-20210705-00424] [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] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Objective: To investigate the effect of sialic acid combined with immunoglobulin-like lectin 15 (SIGLEC-15) on laryngeal squamous cell carcinoma (LSCC) and underlying mechanisms. Methods: The Cancer Genome Atlas (TCGA), Cancer Cell Line Encyclopedia (CCLE) and Gene Expression Profiling Interactive Analysis (GEPIA2) databases were used for bioinformatics analysis. Cell Counting Kit-8 (CCK8), flow cytometry, and Transwell method were used respectively to detect proliferation, apoptosis, cell cycle, metastasis and invasion behaviors of the cells. Gene chip method was used for detecting up-regulated and down-regulated genes and performing enrichment analysis of differential genes. Western Blotting (WB) and Quantitative Real-time PCR (qPCR) were used to detect the expressions of proteins. Tumor formation experiments in nude mice were used to detect the effect of SIGLEC-15 on the growth of transplanted tumors. Wilcoxon rank sum test, t-test and Log-rank test were used for statistical analysis. Results: SIGLEC-15 was highly expressed in laryngeal squamous cell carcinoma and closely related to life in being. TU686SIGLEC-15-with low expression of SIGLEC-15 was constructed. Compared to TU686SIGLEC-15+, TU686SIGLEC-15-showed significantly reduced activities of proliferation (48 h: 1.32±0.23 vs. 2.56±0.37, t=6.59, P<0.05), migration (1 036.52±51.22 vs. 1 819.62±180.24, t=7.22, P<0.05) and invasion (469.21±112.25 vs. 961.45±102.03, t=7.85, P<0.05); early increased apoptosis ((23.27±1.12)% vs. (5.64±1.61)%, t=11.32, P<0.05); blocked cell cycle at G0/G1 ((59.32±3.65)% vs. (35.46±3.57)%, t=9.85, P<0.05); the knockdown of SIGLEC-15 resulted in up-regulation of 864 genes, down-regulation of 357 genes, with significant changes in molecules of cell cycle, apoptosis and JAK/STAT signal pathways, and the expressions of p-JAK2, p-STAT3, Caspase-3, Bad, Bcl-2, and Cyclin d1 proteins. Tumor formation experiments in nude mice showed that at 8 weeks after the tumors were implanted, the growth transplanted tumors of TU686 SIGLEC-15-cell group was slower than that of TU686 SIGLEC-15+cell group, with significant difference in the mean tumor weights between two groups ((0.382±0.054) g vs. (1.277±0.126) g, t=8.44, P<0.05), while the expression of SIGLEC-15 was lower in the transplanted tumors of SIGLEC-15 knockdown group compared to control group, with significant difference(11.29±2.17 vs. 36.25±7.56, t=9.28, P<0.05). Conclusion: SIGLEC-15 is highly expressed in LSCC and can promote the progression of LSCC through the JAK2-STAT3 pathway.
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Affiliation(s)
- S H Li
- Department of Otolaryngology, Zhoukou Central Hospital, Zhoukou 466000, Henan Province, China
| | - J Sun
- Department of Otorhinolaryngology, Head and Neck Surgery, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - Wenming Chen
- Department of Otolaryngology, Henan Hospital of Traditional Chinese Medicine, Zhengzhou 450002, China
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Yang SY, Li SH, Liu JL, Sun XQ, Cen YY, Ren RY, Ying SC, Chen Y, Zhao ZH, Liao W. Histopathology-Based Diagnosis of Oral Squamous Cell Carcinoma Using Deep Learning. J Dent Res 2022; 101:1321-1327. [PMID: 35446176 DOI: 10.1177/00220345221089858] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
Oral squamous cell carcinoma (OSCC) is prevalent around the world and is associated with poor prognosis. OSCC is typically diagnosed from tissue biopsy sections by pathologists who rely on their empirical experience. Deep learning models may improve the accuracy and speed of image classification, thus reducing human error and workload. Here we developed a custom-made deep learning model to assist pathologists in detecting OSCC from histopathology images. We collected and analyzed a total of 2,025 images, among which 1,925 images were included in the training set and 100 images were included in the testing set. Our model was able to automatically evaluate these images and arrive at a diagnosis with a sensitivity of 0.98, specificity of 0.92, positive predictive value of 0.924, negative predictive value of 0.978, and F1 score of 0.951. Using a subset of 100 images, we examined whether our model could improve the diagnostic performance of junior and senior pathologists. We found that junior pathologists were able to delineate OSCC in these images 6.26 min faster when assisted by the model than when working alone. When the clinicians were assisted by the model, their average F1 score improved from 0.9221 to 0.9566 in the case of junior pathologists and from 0.9361 to 0.9463 in the case of senior pathologists. Our findings indicate that deep learning can improve the accuracy and speed of OSCC diagnosis from histopathology images.
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Affiliation(s)
- S Y Yang
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China
| | - S H Li
- National Key Laboratory of Fundamental Science on Synthetic Vision, College of Computer Science, Sichuan University, Chengdu, Sichuan, China
| | - J L Liu
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China
| | - X Q Sun
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China
| | - Y Y Cen
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China
| | - R Y Ren
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China
| | - S C Ying
- College of Computer Science, Sichuan University, Chengdu, Sichuan, China
| | - Y Chen
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China
| | - Z H Zhao
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China
| | - W Liao
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China
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Shen K, Wang XJ, Liu KT, Li SH, Li J, Zhang JX, Wang HT, Hu DH. [Effects of exosomes from human adipose-derived mesenchymal stem cells on inflammatory response of mouse RAW264.7 cells and wound healing of full-thickness skin defects in mice]. Zhonghua Shao Shang Yu Chuang Mian Xiu Fu Za Zhi 2022; 38:215-226. [PMID: 35325966 DOI: 10.3760/cma.j.cn501120-20201116-00477] [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] [Grants] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Objective: To investigate the effects of exosomes from human adipose-derived mesenchymal stem cells (ADSCs) on inflammatory response of mouse RAW264.7 cells and wound healing of full-thickness skin defects in mice. Methods: The experimental research methods were adopted. The discarded adipose tissue was collected from 3 female patients (aged 10-25 years) who underwent abdominal surgery in the First Affiliated Hospital of Air Force Medical University. ADSCs were extracted from the adipose tissue by collagenase Ⅰ digestion and identified with flow cytometry. Exosomes were extracted from the human ADSCs by differential ultracentrifugation, the morphology of the exosomes was observed by transmission electron microscopy, the particle diameter of the exosomes was detected by nanoparticle tracking analyzer, and the protein expressions of CD9, CD63, tumor susceptibility gene 101 (TSG101), and β-actin were detected by Western blotting. The human ADSCs exosomes (ADSCs-Exos) and RAW264.7 cells were co-cultured for 12 h, and the uptake of RAW264.7 cells for human ADSCs-Exos was observed. The RAW264.7 cells were divided into phosphate buffer solution (PBS) group stimulated with PBS for suitable time, endotoxin/lipopolysaccharide (LPS) stimulation 2 h group, LPS stimulation 4 h group, LPS stimulation 6 h group, LPS stimulation 12 h group, and LPS stimulation 24 h group stimulated with LPS for corresponding time, with 3 wells in each group, and the mRNA expressions of interleukin 1β (IL-1β), tumor necrosis factor α (TNF-α), IL-6, and IL-10 were detected by real-time fluorescence quantitative reverse transcription polymerase chain reaction (RT-PCR) method. The RAW264.7 cells were divided into PBS group, LPS alone group, and LPS+ADSCs-Exos group, with 3 wells in each group, which were dealt correspondingly for the time screened out in the previous experiment, the mRNA expressions of IL-1β, TNF-α, IL-6, IL-10, trasforming growth factor β (TGF-β,) and vascular endothelial growth factor (VEGF) were detected by real time fluorescence quantitative RT-PCR method, and the protein expressions of inducible nitric oxide synthase (iNOS) and arginase 1 (Arg1) were detected by Western blotting. Twenty-four 8-week-old male BALB/c mice were divided into PBS group and ADSCs-Exos group according to the random number table, with 12 mice in each group, and a full-thickness skin defect wound with area of 1 cm×1 cm was inflicted on the back of each mouse. Immediately after injury, the wounds of mice in the two groups were dealt correspondingly. On post injury day (PID) 1, the concentration of IL-1β and TNF-α in serum were detected by enzyme-linked immunosorbent assay, and the mRNA expressions of IL-1β, TNF-α, and IL-6 were detected by real time fluorescence quantitative RT-PCR method. On PID 3, 6, 9, 12, and 15, the wound healing was observed and the wound non-healing rate was calculated. On PID 15, the defect length of skin accessory and collagen volume fraction (CVF) were detected by hematoxylin eosin staining and Masson staining, respectively, the CD31 expression and neovascularization were detected by immunohistochemistry, and the ratio of Ki67 positive cells, the ratio of iNOS and Arg1 double positive cells, and the ratio of iNOS positive cells to Arg1 positive cells and their fluorescence intensities were detected by immunofluorescence method. The number of samples in animal experiments was 6. Data were statistically analyzed with analysis of variance for repeated measurement, one-way analysis of variance, and independent sample t test. Results: At 12 h of culture, the cells exhibited a typical spindle shape, which were verified as ADSCs with flow cytometry. The exosomes with a vesicular structure and particle diameters of 29-178 nm, were positively expressed CD9, CD63, and TSG101 and negatively expressed β-actin. After 12 h of co-culture, the human ADSCs-Exos were endocytosed into the cytoplasm by RAW264.7 cells. The mRNA expressions of IL-1β, TNF-α, IL-6, and IL-10 of RAW264.7 cells in LPS stimulation 2 h group, LPS stimulation 4 h group, LPS stimulation 6 h group, LPS stimulation 12 h group, and LPS stimulation 24 h group were significantly higher than those in PBS group (with t) values of 39.10, 14.55, 28.80, 4.74, 48.80, 22.97, 13.25, 36.34, 23.12, 18.71, 29.19, 41.08, 11.68, 18.06, 8.54, 43.45, 62.31, 22.52, 21.51, and 37.13, respectively, P<0.01). The stimulation 12 h with significant expressions of all the inflammatory factors was selected as the time point in the following experiment. After stimulation of 12 h, the mRNA expressions of IL-1β, TNF-α, IL-6, and IL-10 of RAW264.7 cells in LPS alone group were significantly higher than those in PBS group (with t values of 44.20, 51.26, 14.71, and 8.54, respectively, P<0.01); the mRNA expressions of IL-1β, TNF-α, and IL-6 of RAW264.7 cells in LPS+ADSCs-Exos group were significantly lower than those in LPS alone group (with t values of 22.89, 25.51, and 8.03, respectively, P<0.01), while the mRNA expressions of IL-10, TGF-β, and VEGF were significantly higher than those in LPS alone group (with t values of 9.89, 13.12, and 7.14, respectively, P<0.01). After stimulation of 12 h, the protein expression of iNOS of RAW264.7 cells in LPS alone group was significantly higher than that in PBS group and LPS+ADSCs-Exos group, respectively (with t values of 11.20 and 5.06, respectively, P<0.05 or P<0.01), and the protein expression of Arg1 was significantly lower than that in LPS+ADSCs-Exos group (t=15.01, P<0.01). On PID 1, the serum concentrations of IL-1β and TNF-α and the mRNA expressions of IL-1β, TNF-α, and IL-6 in wound tissue of mice in ADSCs-Exos group were significantly those in lower than PBS group (with t values of 15.44, 12.24, 9.24, 7.12, and 10.62, respectively, P<0.01). On PID 3, 6, 9, 12, and 15 d, the wound non-healing rates of mice in ADSCs-Exos group were (73.2±4.1)%, (53.8±3.8)%, (42.1±5.1)%, (24.1±2.8)%, and 0, which were significantly lower than (82.5±3.8)%, (71.2±4.6)%, (52.9±4.1)%, (41.5±3.6)%, and (14.8±2.5)% in PBS group, respectively (with t values of 4.77, 8.93, 5.54, 7.63, and 7.59, respectively, P<0.01). On PID 15, the defect length of skin accessory in wounds of mice in PBS group was significantly longer than that in ADSCs-Exos group (t=9.50, P<0.01), and the CVF was significantly lower than that in ADSCs-Exos group (t=9.15, P<0.01). On PID 15, the CD31 expression and the number of new blood vessels (t=12.99, P<0.01), in wound tissue of mice in ADSCs-Exos group were significantly more than those in PBS group, and the ratio of Ki67 positive cells was significantly higher than that in PBS group (t=7.52, P<0.01). On PID 15, the ratio of iNOS and Arg1 double positive cells in wound tissue of mice in PBS group was (12.33±1.97)%, which was significantly higher than (1.78±0.29)% in ADSCs-Exos group (t=13.04, P<0.01), the ratio of iNOS positive cells and the fluorescence intensity of iNOS were obviously higher than those of ADSCs-Exos group, and the ratio of Arg1 positive cells and the fluorescence intensity of Arg1 were obviously lower than those of ADSCs-Exos group. Conclusions: The human ADSCs-Exos can alleviate inflammatory response of mouse RAW264.7 cells, decrease macrophage infiltration and secretion of the pro-inflammatory cytokines, increase the secretion of anti-inflammatory cytokines to promote neovascularization and cell proliferation in full-thickness skin defect wounds of mice, hence accelerating wound healing.
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Affiliation(s)
- K Shen
- Department of Burns and Cutaneous Surgery, Burn Center of PLA, the First Affiliated Hospital of Air Force Medical University, Xi'an 710032, China
| | - X J Wang
- Department of Burns and Cutaneous Surgery, Burn Center of PLA, the First Affiliated Hospital of Air Force Medical University, Xi'an 710032, China
| | - K T Liu
- Department of Burns and Cutaneous Surgery, Burn Center of PLA, the First Affiliated Hospital of Air Force Medical University, Xi'an 710032, China
| | - S H Li
- Department of Burns and Cutaneous Surgery, Burn Center of PLA, the First Affiliated Hospital of Air Force Medical University, Xi'an 710032, China
| | - J Li
- Department of Burns and Cutaneous Surgery, Burn Center of PLA, the First Affiliated Hospital of Air Force Medical University, Xi'an 710032, China
| | - J X Zhang
- Department of Emergency, the First Affiliated Hospital of Air Force Medical University, Xi'an 710032, China
| | - H T Wang
- Department of Burns and Cutaneous Surgery, Burn Center of PLA, the First Affiliated Hospital of Air Force Medical University, Xi'an 710032, China
| | - D H Hu
- Department of Burns and Cutaneous Surgery, Burn Center of PLA, the First Affiliated Hospital of Air Force Medical University, Xi'an 710032, China
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Gao XD, Li SH, Shang ZA, Tong Q. [A case report of pulmonary embolism and thrombocytopenia in pregnancy]. Zhonghua Xin Xue Guan Bing Za Zhi 2022; 50:68-71. [PMID: 35045617 DOI: 10.3760/cma.j.cn112148-20210406-00301] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Affiliation(s)
- X D Gao
- Department of Cardiology, First Bethune Hospital of Jilin University, Changchun 130021, China
| | - S H Li
- Department of Cardiology, First Bethune Hospital of Jilin University, Changchun 130021, China
| | - Z A Shang
- Department of Cardiology, First Bethune Hospital of Jilin University, Changchun 130021, China
| | - Q Tong
- Department of Cardiology, First Bethune Hospital of Jilin University, Changchun 130021, China
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Deng Y, Liu YH, Chen WQ, Zhang YL, Jiang TT, Li SH, Ai L, Cai MR, Ying QJ, Liu Y, Zhang HW. [Establishment of a fluorescent recombinase-aided isothermal amplification assay for nucleic acid detection of Paraginiumus skrjabini and preliminary evaluation of its detection efficiency]. Zhongguo Xue Xi Chong Bing Fang Zhi Za Zhi 2021; 33:464-469. [PMID: 34791843 DOI: 10.16250/j.32.1374.2021218] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
OBJECTIVE To establish a nucleic acid assay for detection of Paragonimus skrjabini based on the recombinase-aided isothermal amplification (RAA) technique, and to preliminarily evaluate its detection efficiency. METHODS The metacercariae of P. skrjabini, P. westermani and Euparagonimus cenocopiosus were isolated from crabs, and genomic DNA was extracted for molecular characterization. The cytochrome coxidase 1 (cox1) gene sequence of P. skrjabini was selected as the target gene fragment, and the primers and probes were designed, screened and synthesized for RAA assay. The genomic DNA of P. skrjabini metacercariae from Jiyuan City and Yiyang County of Luoyang City, Henan Province were used as templates for verification of the fluorescent RAA assay. The fluorescent RAA assay was performed to detect different concentrations of plasmids containing target gene fragment and P. skrjabini metacercariae genomic DNA to determine the sensitivity. Fluorescent RAA assay was performed with recombinant plasmids containing P. skrjabini cox1 gene sequences at different concentrations and P. skrjabini genomic DNA as templates to evaluate its sensitivity, and the genomic DNA of P. westermani, E. cenocopiosus, Clonorchis sinensis and Schistosoma japonicum was detected with fluorescent RAA assay to evaluate its specificity. RESULTS P. skrjabini, P. westermani and E. cenocopiosus metacercariae were isolated from crabs, respectively. Molecular characterization and phylogenetic analysis confirmed their homology with the genes sequences of standard Paragonimus strains in GenBank. A fluorescent RAA assay was successfully established for nucleic acid detection of P. skrjabini, and the genomic DNA of P. skrjabini metacercariae from Jiyuan City and Yiyang County of Luoyang City, Henan Province was amplified using the fluorescent RAA assay within 5 min, while the negative control was not amplified. If the recombinant plasmid containing P. skrjabini cox1 gene sequences was used as templates, the fluorescent RAA assay showed the lowest detection limit of 10 copies/μL, and positive amplification was observed within 5 min. If genomic DNA was used as templates, the fluorescent RAA assay showed the lowest detection limit of 10 pg/μL, and all positive amplifications were found within 5 to 10 min. In addition, the fluorescent RAA assay was tested negative for P. westermani, E. cenocopiosus, C. sinensis and S. japonicum. CONCLUSIONS A rapid, sensitive and specific fluorescent RAA assay is successfully established for nucleic acid detection of P. skrjabini, which has potential values in rapid field detection and species identification in freshwater crabs in areas endemic for P. skrjabini.
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Affiliation(s)
- Y Deng
- Henan Institute of Parasitic Diseases, Henan Center for Disease Control and Prevention, Henan Provincial Key Laboratory for Pathogenic Microorganisms of Infectious Diseases, Zhengzhou 450016, China
| | - Y H Liu
- Jiangsu Qitian Gene Technology Co., Ltd., China
| | - W Q Chen
- Henan Institute of Parasitic Diseases, Henan Center for Disease Control and Prevention, Henan Provincial Key Laboratory for Pathogenic Microorganisms of Infectious Diseases, Zhengzhou 450016, China
| | - Y L Zhang
- Henan Institute of Parasitic Diseases, Henan Center for Disease Control and Prevention, Henan Provincial Key Laboratory for Pathogenic Microorganisms of Infectious Diseases, Zhengzhou 450016, China
| | - T T Jiang
- Henan Institute of Parasitic Diseases, Henan Center for Disease Control and Prevention, Henan Provincial Key Laboratory for Pathogenic Microorganisms of Infectious Diseases, Zhengzhou 450016, China
| | - S H Li
- Henan Institute of Parasitic Diseases, Henan Center for Disease Control and Prevention, Henan Provincial Key Laboratory for Pathogenic Microorganisms of Infectious Diseases, Zhengzhou 450016, China
| | - L Ai
- National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention, China
| | - M R Cai
- Zhangzhou Center for Disease Control and Prevention, Fujian Province, China
| | - Q J Ying
- Jiangsu Qitian Gene Technology Co., Ltd., China
| | - Y Liu
- Henan Institute of Parasitic Diseases, Henan Center for Disease Control and Prevention, Henan Provincial Key Laboratory for Pathogenic Microorganisms of Infectious Diseases, Zhengzhou 450016, China
| | - H W Zhang
- Henan Institute of Parasitic Diseases, Henan Center for Disease Control and Prevention, Henan Provincial Key Laboratory for Pathogenic Microorganisms of Infectious Diseases, Zhengzhou 450016, China
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Shen L, Tian XJ, Liang RZ, Cheng Y, Kong XL, He F, Zhang C, Wang GA, Li SH, Lu HD, Sun SQ. [Clinical and imaging features of Chlamydia psittaci pneumonia: an analysis of 48 cases in China]. Zhonghua Jie He He Hu Xi Za Zhi 2021; 44:886-891. [PMID: 34565115 DOI: 10.3760/cma.j.cn112147-20210127-00082] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To explore the clinical characteristics, imaging findings, laboratory tests and treatment strategies for Chlamydia psittaci pneumonia. Methods: From January 1, 2019 to January 20, 2021, 48 cases of Psittacosis from 11 hospitals in China were diagnosed via metagenomic next-generation sequencing(mNGS). The data of all patients on occupational history, clinical manifestations, laboratory tests, chest computed tomography(CT)findings, treatment outcomes and prognosis were retrospectively analyzed. Results: Among the 48 patients, there were 29 males and 19 females, with a mean age of (57.1±10.3) years. Thirty patients had a confirmed history of exposure to poultry. The onset to admission interval was (6.5±3.2) days, and hospital stay was (12.4±4.8) days. Clinical manifestations included fever (100%, 48/48), relative bradycardia (71%, 34/48), cough (54.2%, 26/48), sputum (27.1%, 13/48), fatigue (16.7%, 8/48), headache and delirium (20.8%, 9/48), and gastrointestinal symptoms (16.7%, 8/48). Laboratory data showed that white blood cells were (8.0±3.8)×109/L, and the proportion of neutrophils increased in 44 patients. The level of C-reactive protein was (155.3±74.1)mg/L, and that of procalcitonin (PCT)in 59.5% of patients was more than 0.5 μg/L. Percentages of patients with increased lactate dehydrogenase and creatine kinase were 82.9% and 45.2%, respectively. Chest CT scans showed unilateral lung involvement in 34 cases(70.8%) and single lobe involvement in 27 cases(56.3%).The most common imaging change was consolidation, with 38 cases (79.2%) showing lobar consolidation. In terms of treatment, 25 patients were treated with fluoroquinolones alone, 6 patients with doxycycline alone, and 13 patients with combined treatment. The combined-treatment group and the doxycycline alone group were similar in the course of defervescence. The combined treatment group and the doxycycline alone group were both superior to the fluoroquinolones alone group. However, 11 patients were admitted to ICU, all of them received artificial ventilation, and 5 cases developed shock, and one died. Conclusions: Chlamydia psittaci pneumonia is an animal-derived infectious disease with unique features in clinical symptoms, laboratory tests and chest imaging. Appropriate treatment is able to significantly shorten the course of disease and improve the prognosis.
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Affiliation(s)
- L Shen
- Department of Pulmonary and Critical Care Medicine, Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou 310006, China
| | - X J Tian
- Department of Infectious Disease, the First People's Hospital of Xiaoshan District, Hangzhou 311201, China
| | - R Z Liang
- Department of Pulmonary and Critical Care Medicine, the First Hospital of Longyan Affiliated to Fujian Medical University, Longyan 364000, Fujian Province, China
| | - Y Cheng
- Department of Infectious Diseases, Hunan University of Traditional Medicine Affiliated Ningxiang People's Hospital, Ningxiang 410600, Hunan Province, China
| | - X L Kong
- Department of Pulmonary and Critical Care Medicine, Changsha First Hospital, Changsha 410005, China
| | - F He
- Department of Pulmonary and Critical Care Medicine, Affiliated Hangzhou Chest Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China
| | - C Zhang
- Institute of Respiratory Disease, China Three Gorges University, Yichang Central People's Hospital, Yichang 443003, Hubei Province, China
| | - G A Wang
- Department of Pulmonary and Critical Care Medicine, Ningbo Medical Center Li Huili Hospital, Ningbo 315040, China
| | - S H Li
- Department of Pulmonary Medicine, Hangzhou Ninth People's Hospital, Hangzhou 311225, China
| | - H D Lu
- Department of Respiratory and Critical Care, Huzhou Central Hospital, Huzhou 313000, Zhejiang Province, China
| | - S Q Sun
- Department of General Medicine, Nanjing Second Hospital, Nanjing 210003, China
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Liu ZT, Jiang CS, Li SH, Wu M, Cao WH, Hao M. Eye state detection based on Weight Binarization Convolution Neural Network and Transfer Learning. Appl Soft Comput 2021. [DOI: 10.1016/j.asoc.2021.107565] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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17
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Zhao DY, Jiang TT, Chen WQ, Zhang YL, Deng Y, Xu BL, Zhang HW, Guo WS, Lin XM, Li P, Zhao YL, Yang CY, Qian D, Zhou RM, Liu Y, Li SH, Chen JS. [Prevalence of intestinal protozoan infections among rural children in Henan Province from 2014 to 2015]. Zhongguo Xue Xi Chong Bing Fang Zhi Za Zhi 2021; 33:287-292. [PMID: 34286531 DOI: 10.16250/j.32.1374.2021074] [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: 11/27/2022]
Abstract
OBJECTIVE To investigate the prevalence and influencing factors of intestinal protozoan infections among rural children in Henan Province. METHODS A total of 104 survey sites were sampled from 35 counties (cities) in Henan Province using the stratified cluster sampling method to investigate the prevalence of intestinal protozoan infections among rural children from 2014 to 2015. The trophozoites and cysts of intestinal protozoa were identified using the iodine staining method and the physiological saline direct smear method (one detection for one stool sample). The prevalence of intestinal protozoan infections was compared among rural children with different characteristics, and the factors affecting intestinal protozoan infections among rural children were identified. RESULTS The overall prevalence of intestinal protozoan infections was 0.60% (40/6 771) among rural children in Henan Province from 2014 to 2015. There were 7 species of intestinal protozoa identified, and there was no species-specific prevalence (χ2 = 37.732, P = 0.000). No significant differences were found in prevalence of intestinal protozoan infections among rural children in terms of gender (χ2 = 1.793, P = 0.181), age (χ2 = 1.443, P = 0.486), occupation (χ2 = 0.219, P = 0.896) or ecological region (χ2 = 1.700, P = 0.637). In addition, terrain (χ2 = 2.311, P = 0.510), economic level (χ2 = 4.322, P = 0.229), source of drinking water (χ2 = 0.731, P = 0.393), eating raw vegetables (χ2 = 1.134, P = 0.287) and deworming (χ2 = 1.089, P = 0.297) had no remarkable effects on the prevalence of intestinal protozoan infections among rural children in Henan Province; however, the prevalence of intestinal protozoan infections varied significantly among rural children living in regions with different coverage of non-harmless toilets (χ2 = 10.050, P = 0.018). CONCLUSIONS The prevalence of intestinal protozoan infections is low among rural children in Henan Province.
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Affiliation(s)
- D Y Zhao
- Henan Provincial Center for Disease Control and Prevention; Henan Provincial Key Laboratory for Pathogenic Microorganisms of Infectious Diseases, Zhengzhou 450016, China
| | - T T Jiang
- Henan Provincial Center for Disease Control and Prevention; Henan Provincial Key Laboratory for Pathogenic Microorganisms of Infectious Diseases, Zhengzhou 450016, China
| | - W Q Chen
- Henan Provincial Center for Disease Control and Prevention; Henan Provincial Key Laboratory for Pathogenic Microorganisms of Infectious Diseases, Zhengzhou 450016, China
| | - Y L Zhang
- Henan Provincial Center for Disease Control and Prevention; Henan Provincial Key Laboratory for Pathogenic Microorganisms of Infectious Diseases, Zhengzhou 450016, China
| | - Y Deng
- Henan Provincial Center for Disease Control and Prevention; Henan Provincial Key Laboratory for Pathogenic Microorganisms of Infectious Diseases, Zhengzhou 450016, China
| | - B L Xu
- Henan Provincial Center for Disease Control and Prevention; Henan Provincial Key Laboratory for Pathogenic Microorganisms of Infectious Diseases, Zhengzhou 450016, China
| | - H W Zhang
- Henan Provincial Center for Disease Control and Prevention; Henan Provincial Key Laboratory for Pathogenic Microorganisms of Infectious Diseases, Zhengzhou 450016, China
| | - W S Guo
- Henan Provincial Center for Disease Control and Prevention; Henan Provincial Key Laboratory for Pathogenic Microorganisms of Infectious Diseases, Zhengzhou 450016, China
| | - X M Lin
- Henan Provincial Center for Disease Control and Prevention; Henan Provincial Key Laboratory for Pathogenic Microorganisms of Infectious Diseases, Zhengzhou 450016, China
| | - P Li
- Henan Provincial Center for Disease Control and Prevention; Henan Provincial Key Laboratory for Pathogenic Microorganisms of Infectious Diseases, Zhengzhou 450016, China
| | - Y L Zhao
- Henan Provincial Center for Disease Control and Prevention; Henan Provincial Key Laboratory for Pathogenic Microorganisms of Infectious Diseases, Zhengzhou 450016, China
| | - C Y Yang
- Henan Provincial Center for Disease Control and Prevention; Henan Provincial Key Laboratory for Pathogenic Microorganisms of Infectious Diseases, Zhengzhou 450016, China
| | - D Qian
- Henan Provincial Center for Disease Control and Prevention; Henan Provincial Key Laboratory for Pathogenic Microorganisms of Infectious Diseases, Zhengzhou 450016, China
| | - R M Zhou
- Henan Provincial Center for Disease Control and Prevention; Henan Provincial Key Laboratory for Pathogenic Microorganisms of Infectious Diseases, Zhengzhou 450016, China
| | - Y Liu
- Henan Provincial Center for Disease Control and Prevention; Henan Provincial Key Laboratory for Pathogenic Microorganisms of Infectious Diseases, Zhengzhou 450016, China
| | - S H Li
- Henan Provincial Center for Disease Control and Prevention; Henan Provincial Key Laboratory for Pathogenic Microorganisms of Infectious Diseases, Zhengzhou 450016, China
| | - J S Chen
- Henan Provincial Center for Disease Control and Prevention; Henan Provincial Key Laboratory for Pathogenic Microorganisms of Infectious Diseases, Zhengzhou 450016, China
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Liu JL, Li SH, Cai YM, Lan DP, Lu YF, Liao W, Ying SC, Zhao ZH. Automated Radiographic Evaluation of Adenoid Hypertrophy Based on VGG-Lite. J Dent Res 2021; 100:1337-1343. [PMID: 33913367 DOI: 10.1177/00220345211009474] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Adenoid hypertrophy is a pathological hyperplasia of the adenoids, which may cause snoring and apnea, as well as impede breathing during sleep. The lateral cephalogram is commonly used by dentists to screen for adenoid hypertrophy, but it is tedious and time-consuming to measure the ratio of adenoid width to nasopharyngeal width for adenoid assessment. The purpose of this study was to develop a screening tool to automatically evaluate adenoid hypertrophy from lateral cephalograms using deep learning. We proposed the deep learning model VGG-Lite, using the largest data set (1,023 X-ray images) yet described to support the automatic detection of adenoid hypertrophy. We demonstrated that our model was able to automatically evaluate adenoid hypertrophy with a sensitivity of 0.898, a specificity of 0.882, positive predictive value of 0.880, negative predictive value of 0.900, and F1 score of 0.889. The comparison of model-only and expert-only detection performance showed that the fully automatic method (0.07 min) was about 522 times faster than the human expert (36.6 min). Comparison of human experts with or without deep learning assistance showed that model-assisted human experts spent an average of 23.3 min to evaluate adenoid hypertrophy using 100 radiographs, compared to an average of 36.6 min using an entirely manual procedure. We therefore concluded that deep learning could improve the accuracy, speed, and efficiency of evaluating adenoid hypertrophy from lateral cephalograms.
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Affiliation(s)
- J L Liu
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China
| | - S H Li
- National Key Laboratory of Fundamental Science on Synthetic Vision, College of Computer Science, Sichuan University, Chengdu, Sichuan, China
| | - Y M Cai
- Department of Dental Technology, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - D P Lan
- Department of Dental Technology, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Y F Lu
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China
| | - W Liao
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China
| | - S C Ying
- College of Computer Science, Sichuan University, Chengdu, Sichuan, China
| | - Z H Zhao
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China
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Guo WS, Zhao DY, Zhang HW, Lu DL, Liu Y, Qian D, Yang CY, Guan Z, Zhao YL, Zhou RM, Li SH, Wang H, Deng Y, Chen WQ, Zhang YL. [Epidemiological characteristics of malaria in Henan Province from 1950 to 2019]. Zhongguo Xue Xi Chong Bing Fang Zhi Za Zhi 2020; 33:62-65. [PMID: 33660476 DOI: 10.16250/j.32.1374.2020150] [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: 11/27/2022]
Abstract
OBJECTIVE To analyze the epidemiological characteristics of malaria in Henan Province from 1950 to 2019, so as to provide the scientific evidence for consolidating malaria elimination achievements in the province. METHODS The epidemiological situation of malaria and demographic data in Henan Province from 1950 to 2019 were collected, and the statistical analyses were performed using a descriptive epidemiological method. The spatial temporal distribution of malaria cases was identified using the software ArcGIS version 10.3. RESULTS During the period from 1950 through 2019, the progress of malaria elimination was divided into 4 stages in Henan Province, including the baseline-survey and key-control stage, morbidity-control and incidence-reduction stage, basic-eradication and achievement-consolidation stage and elimination stage. The spatial distribution of malaria cases shifted from south of the Huai River and the plain regions between the Yellow River and Taihang Mountain to the Huang-Huai-Hai Plain and Nanyang Basin, then was concentrated in eastern part of southern Huai River where Anopheles anthropophagus was distributed, and finally was gradually under control following malaria outbreak in Eastern Henan Plain. In addition, the species of Plasmodium changed from P. vivax, P. falciparum and P. malariae co-endemics to a single P. vivax infection, and the current co-endemics of 5 invasive malaria parasites, and the malaria vectors shifted from co-existence of Anopheles sinensis and An. anthropophagus to An. sinensis alone. CONCLUSIONS There has been a large change in the epidemiological characteristics of malaria in Henan Province from 1950 to 2019. Although malaria has been eliminated in Henan Province, the consolidation of the malaria elimination achievements remain a great challenge due to overseas imported malaria.
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Affiliation(s)
- W S Guo
- Henan Provincial Centre for Disease Control and Prevention, Zhengzhou 450016, China
| | - D Y Zhao
- Henan Provincial Centre for Disease Control and Prevention, Zhengzhou 450016, China
| | - H W Zhang
- Henan Provincial Centre for Disease Control and Prevention, Zhengzhou 450016, China
| | - D L Lu
- Henan Provincial Centre for Disease Control and Prevention, Zhengzhou 450016, China
| | - Y Liu
- Henan Provincial Centre for Disease Control and Prevention, Zhengzhou 450016, China
| | - D Qian
- Henan Provincial Centre for Disease Control and Prevention, Zhengzhou 450016, China
| | - C Y Yang
- Henan Provincial Centre for Disease Control and Prevention, Zhengzhou 450016, China
| | - Z Guan
- Henan Provincial Centre for Disease Control and Prevention, Zhengzhou 450016, China
| | - Y L Zhao
- Henan Provincial Centre for Disease Control and Prevention, Zhengzhou 450016, China
| | - R M Zhou
- Henan Provincial Centre for Disease Control and Prevention, Zhengzhou 450016, China
| | - S H Li
- Henan Provincial Centre for Disease Control and Prevention, Zhengzhou 450016, China
| | - H Wang
- Henan Provincial Centre for Disease Control and Prevention, Zhengzhou 450016, China
| | - Y Deng
- Henan Provincial Centre for Disease Control and Prevention, Zhengzhou 450016, China
| | - W Q Chen
- Henan Provincial Centre for Disease Control and Prevention, Zhengzhou 450016, China
| | - Y L Zhang
- Henan Provincial Centre for Disease Control and Prevention, Zhengzhou 450016, China
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Li SH, Hou Y, Chen Z, Wu WR, Wu CX, Sun H. [Construction of RNA interference (RNAi) lentiviral expression vector of DEK gene and its effect on the biological behavior of liver cancer cells]. Zhonghua Gan Zang Bing Za Zhi 2020; 28:868-875. [PMID: 33105933 DOI: 10.3760/cma.j.issn.1007-3418.2020.03.000] [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] [Grants] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To construct RNA interference (RNAi) lentiviral expression vector of DEK gene, and to explore its effect on the biological behavior of liver cancer cells. Methods: Double-stranded oligo DNAs were annealed and synthesized according to the interference sequence of DEK gene by RNAi technology. Small interfering RNA expression vector pLKO.1 was cloned after enzymatic digestion. The recombinant lentiviral pLKO.1-sh hDEK was constructed, and then the virus supernatant was collected, packed and infected by 293T cells. Real-time reverse transcription PCR (RT-PCR) and Western blot were used to detect DEK expression in human liver cancer cells Bel-7402, Hu-7, SmMC-7721 and HepG2, and DEK knockdown efficiency in each group of lentivirus-infected cells. Cell proliferation ability, cloning ability, apoptosis and migration ability were detected by cell counting kit-8 (CCK8), flow cytometry and scratch test, respectively. The t-test was used to compare the mean between the two groups, and one-way ANOVA was used to compare the multiple groups. Results: Enzymatic digestion and DNA sequencing results confirmed that the recombinant lentiviral vectors pLKO.1-sh hDEK1 and pLKO.1-sh hDEK3 were successfully constructed. RT-PCR and Western blot results showed that the expression of DEK in human liver cancer cells BEL-7402 and Huh7 cells was higher, and pLKO.1-sh hDEK3 was more effective in inhibiting the DEK gene expression (P < 0.05). Therefore, pLKO.1-sh hDEK3 was selected to infect BEL-7402 and Huh7 cells for subsequent functional experiments. CCK8 cell proliferation test result showed that the cell proliferation ability of BEL-7402 and Huh7 cells infected with recombinant lentivirus was weakened when compared with blank control and negative control group (P < 0.05). Apoptosis results showed that the apoptosis rate of knockdown group was higher than that of blank and the negative control group (P < 0.05). Cell scratch test result showed that the wound healing rate of knockdown group was lower than that of blank control and negative control group (P < 0.05), and the difference was statistically significant; however, there was no statistically significant difference between blank control and negative control group. Conclusion: Targeting DEK expression in silent liver cancer cells can inhibit the cell proliferation, migration ability, and induce apoptosis, which lays the foundation for further study of the role of DEK gene in liver cancer.
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Affiliation(s)
- S H Li
- Key Laboratory of Molecular Biology for Infectious Diseases, Institute for Viral Hepatitis, The second Affiliated Hospital of Chongqing Medical University, Chongqing 400010, China
| | - Y Hou
- Department of Hematology,The first Hospital Affiliated To Army Medical University, Chongqing 400010, China
| | - Z Chen
- Department of Hematology,The first Hospital Affiliated To Army Medical University, Chongqing 400010, China
| | - W R Wu
- Department of Hematology,The first Hospital Affiliated To Army Medical University, Chongqing 400010, China
| | - C X Wu
- Department of Hepatobiliary Surgery, The Second Affiliated Hospital of Chongqing Medical University, Chongqing 400010, China
| | - H Sun
- Key Laboratory of Molecular Biology for Infectious Diseases, Institute for Viral Hepatitis, The second Affiliated Hospital of Chongqing Medical University, Chongqing 400010, China
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Zhang QQ, Liu Y, Zhou RM, Yang CY, Qian D, Li SH, Zhang HW. [Diagnosis of imported malaria cases in Henan Province from 2015 to 2019]. Zhongguo Xue Xi Chong Bing Fang Zhi Za Zhi 2020; 32:374-379. [PMID: 32935511 DOI: 10.16250/j.32.1374.2020180] [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: 11/27/2022]
Abstract
OBJECTIVE To analyze the diagnosis of imported malaria cases in Henan Province from 2015 to 2019, so as to provide the evidence for malaria surveillance during the post-elimination stage. METHODS The data pertaining to malaria cases in Henan Province from 2015 to 2019 were extracted via the web-based Chinese Information System for Infectious Diseases Control and Prevention and the Parasitic Diseases Information Reporting Management System (PDIRMS) of Chinese Center for Disease Control and Prevention, and the diagnostic methods, diagnostic institutions and diagnostic time of imported malaria cases were analyzed. RESULTS A total of 952 imported malaria cases were reported in Henan Province during the period from 2015 through 2019, and all cases were laboratory-confirmed. The positive rate of malaria rapid diagnostic tests (RDTs) was 98.61% (779/790), which was significantly greater than that (94.22%, 897/952) of microscopic examinations (χ2 = 22.773, P < 0.05). The proportion of imported malaria cases diagnosed in medical institutions increased from 65.22% (120/184) in 2015 to 81.50% (185/227) in 2019. Among the 238 imported malaria cases diagnosed in centers for disease control and prevention (CDC), 71.01% (169/238) were diagnosed in county-level CDC, and among the 704 cases diagnosed in medical institutions, only 8.38% (59/704) were diagnosed at county-level medical institutions. The median time from onset to definitive diagnosis of malaria was 3 days, and the median duration between onset and initial diagnosis of malaria was 1 day. The duration between initial diagnosis and definitive diagnosis of malaria varied significantly among years (χ2 = 24.956, P < 0.05), and the interquartile range from initial diagnosis to definitive diagnosis reduced from 4 days in 2016 to 2 days in 2019. In addition, the median time from initial diagnosis to definitive diagnosis was significantly longer in severe falciparum malaria cases than in non-severe falciparum malaria cases (2 days vs. 1 day; Z = 7.557, P < 0.05). CONCLUSIONS Medical institutions play a more and more important role in the identification and surveillance of malaria cases; however, the diagnostic capability of malaria remains low in county-level medical institutions. The diagnostic awareness and capability of county-level medical institutions requires to be improved, in order to play their roles as sentinel hospitals in the malaria surveillance during the post-elimination stage.
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Affiliation(s)
- Q Q Zhang
- School of Public Health, Zhengzhou University, Zhengzhou 450001, China
| | - Y Liu
- Henan Center for Disease Control and Prevention, China
| | - R M Zhou
- Henan Center for Disease Control and Prevention, China
| | - C Y Yang
- Henan Center for Disease Control and Prevention, China
| | - D Qian
- Henan Center for Disease Control and Prevention, China
| | - S H Li
- Henan Center for Disease Control and Prevention, China
| | - H W Zhang
- School of Public Health, Zhengzhou University, Zhengzhou 450001, China
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Wang R, Liao XH, Li SH, Liu DW. [Mutifocal EB virus associated smooth muscle tumor arising in intestinal tract of non transplantation/HIV patient: report of a case]. Zhonghua Bing Li Xue Za Zhi 2020; 49:938-940. [PMID: 32892563 DOI: 10.3760/cma.j.cn112151-20191226-00829] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- R Wang
- Department of Pathology, the First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510008, China
| | - X H Liao
- Department of Digestive Internal, the East Hospital of the First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510008, China
| | - S H Li
- Department of Molecular Diagnosis Center, the First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510008, China
| | - D W Liu
- Department of Pathology, the First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510008, China
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Yang Y, Li P, Li SH. STRUCTURAL INSIGHTS AND ANTI-COLON CANCER ACTIVITY OF TWO Zn(II)-BASED COORDINATION POLYMERS BASED ON CARBOXYLATE AND IMIDAZOLE CO-LIGANDS. J STRUCT CHEM+ 2020. [DOI: 10.1134/s0022476620070161] [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: 11/23/2022]
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Yang CY, Qian D, Lu DL, Liu Y, Zhou RM, Li SH, Zhang HW, Zhao YL. [Epidemic status of malaria and progress of malaria elimination in Henan Province, 2018]. Zhongguo Xue Xi Chong Bing Fang Zhi Za Zhi 2020; 32:298-300. [PMID: 32468794 DOI: 10.16250/j.32.1374.2019130] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
OBJECTIVE To understand the epidemic status of malaria and progress of malaria elimination in Henan Province in 2018, so as to provide the scientific evidence for formulating the control strategy of malaria. METHODS All data pertaining to the epidemic status of malaria and malaria case were captured from Henan Province in 2018, and the epidemic status of malaria and the diagnosis and treatment of malaria cases were analyzed using a descriptive epidemiological method. RESULTS A total of 174 malaria cases were reported in Henan Province in 2018, with a male-to-female ratio of 33.8∶1. The cases were predominantly found at 30- and 40- years, and farmer was the highest-risk population. All cases were imported for overseas countries and 96.55% (168/174) were from Africa. The cases were reported across 17 cities of the province, and 63.22% (110 cases) were detected in 4 cities of Zhengzhou, Luoyang, Xuchang and Puyang. Both the median duration from onset to initial admission and the median time from the initial admission to definitive diagnosis were 1 d. There were 6 cases (3.45%) with more than 7 days to visit a doctor, and there were 13 cases (7.47%) with definitive diagnosis of over 7 days (delay in definitive diagnosis). All malaria cases were reported within 24 h, and 98.28% (171/174) completed case investigations within 3 d. All 18 cities had achieved malaria elimination by December 2018. CONCLUSIONS All malaria cases reported in Henan Province in 2018 are imported from overseas countries. Intensifying malaria surveillance among returnees from Africa and Southeast Asia and timely identification and treatment of imported malaria cases are required to prevent the development of secondary malaria cases, so as to ensure the achievement of malaria elimination in Henan Province on schedule.
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Affiliation(s)
- C Y Yang
- Institute of Parasitic Diseases, Center for Disease Control and Prevention of Henan Province, Zhengzhou 450016, China
| | - D Qian
- Institute of Parasitic Diseases, Center for Disease Control and Prevention of Henan Province, Zhengzhou 450016, China
| | - D L Lu
- Institute of Parasitic Diseases, Center for Disease Control and Prevention of Henan Province, Zhengzhou 450016, China
| | - Y Liu
- Institute of Parasitic Diseases, Center for Disease Control and Prevention of Henan Province, Zhengzhou 450016, China
| | - R M Zhou
- Institute of Parasitic Diseases, Center for Disease Control and Prevention of Henan Province, Zhengzhou 450016, China
| | - S H Li
- Institute of Parasitic Diseases, Center for Disease Control and Prevention of Henan Province, Zhengzhou 450016, China
| | - H W Zhang
- Institute of Parasitic Diseases, Center for Disease Control and Prevention of Henan Province, Zhengzhou 450016, China
| | - Y L Zhao
- Institute of Parasitic Diseases, Center for Disease Control and Prevention of Henan Province, Zhengzhou 450016, China
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Zeng J, Huang YY, Xu XM, Li SH, Zuo DC. Both Caspase and Calpain are Involved in Endoplasmic Reticulum-Targeted BNIP3-Induced Cell Death. Folia Biol (Praha) 2020; 66:60-66. [PMID: 32851835] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Bcl-2/E1B-19K-interacting protein 3 (BNIP3) is a member of the apoptotic B-cell lymphoma-2 family that regulates cell death. Although BNIP3 targeted normally to the mitochondrial outer membrane by its transmembrane domain was originally considered to be essential for its pro-apoptotic activity, accumulating evidence has shown that BNIP3 is localized to endoplasmic reticulum at physiological conditions and that forced expression of BNIP3 can initiate cell death via multiple pathways depending on the subcellular compartment it targets. Targeting BNIP3 to endoplasmic reticulum has been shown to participate in cell death during endoplasmic reticulum stress. However, the molecular events responsible for BNIP3-induced cell death in the endoplasmic reticulum remain poorly understood. In the present study, the transmembrane domain of BNIP3 was replaced with a segment of cytochrome b5 that targets BNIP3 into endoplasmic reticulum, which induced cell death as effectively as its wild-type molecule in the SW480 cell line (colon carcinoma). Furthermore, a pan-caspase inhibitor, z-VAD-fmk, and PD150606, a specific calpain inhibitor, both significantly suppressed the endoplasmic reticulum-targeted BNIP3-induced cell death. These results suggest that endoplasmic reticulum-targeted BNIP3 induced a mixed mode of cell death requiring both caspases and calpains.
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Affiliation(s)
- J Zeng
- Department of Orthodontics, The Affiliated Stomatology Hospital of Southwest Medical University, Luzhou, Sichuan, China
- Orofacial Reconstruction and Regeneration Laboratory, The Affiliated Stomatology Hospital of Southwest Medical University, Luzhou, Sichuan, China
| | - Y Y Huang
- Department of Orthodontics, The Affiliated Stomatology Hospital of Southwest Medical University, Luzhou, Sichuan, China
- Orofacial Reconstruction and Regeneration Laboratory, The Affiliated Stomatology Hospital of Southwest Medical University, Luzhou, Sichuan, China
| | - X M Xu
- Department of Orthodontics, The Affiliated Stomatology Hospital of Southwest Medical University, Luzhou, Sichuan, China
- Orofacial Reconstruction and Regeneration Laboratory, The Affiliated Stomatology Hospital of Southwest Medical University, Luzhou, Sichuan, China
| | - S H Li
- Orofacial Reconstruction and Regeneration Laboratory, The Affiliated Stomatology Hospital of Southwest Medical University, Luzhou, Sichuan, China
| | - D C Zuo
- The Key Laboratory of Medical Electrophysiology, Ministry of Education, Collaborative Innovation Center for Prevention and Treatment of Cardiovascular Disease, Institute of Cardiovascular Research, Southwest Medical University, Luzhou, Sichuan, China
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Li SH, Zhong N, Shu B, Guan H. [Summary of the 2019 Academic Annual Meeting of the Chinese Burn Association]. Zhonghua Shao Shang Za Zhi 2019; 35:894-896. [PMID: 31877616 DOI: 10.3760/cma.j.issn.1009-2587.2019.12.014] [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
The 2019 Academic Annual Meeting of the Chinese Burn Association, sponsored by the Chinese Medical Association and the Chinese Burn Association, was successfully held in Zhuhai, Guangdong province, from November 6th to 9th, 2019. The theme of this conference was " One China, One Standard--Data Standardization and Construction of National Burn Data Platform" . A total of 2 305 submissions and 1 749 e-posters were received, and 1 097 registered representatives, nearly 2 000 representatives from 9 countries and regions attended the meeting. Focusing on the theme of this conference, a variety of novel forms were adopted such as teaching contest of young surgeons, multi-disciplinary discussion, workshop, and surgery live broadcast on hot issues in key areas of burns. Besides, with the focus on humanistic care and innovation, a multi-disciplinary discussion was warmly conducted. The 2020 academic annual conference is scheduled to be held in Nanchang, China.
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Affiliation(s)
- S H Li
- Department of Burns and Cutaneous Surgery, Burn Center of PLA, the First Affiliated Hospital, Air Force Medical University, Xi'an 710032, China
| | - N Zhong
- Academic Department of Chinese Medical Association, Beijing 100710, China
| | - B Shu
- Department of Burns, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China
| | - H Guan
- Department of Burns and Cutaneous Surgery, Burn Center of PLA, the First Affiliated Hospital, Air Force Medical University, Xi'an 710032, China
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Chen DW, Li SH, Lyu B, Zhao YF, Li JG, Wu YN. [The status and health risk assessment of dietary fipronil contamination among 20 provinces of China]. Zhonghua Yu Fang Yi Xue Za Zhi 2019; 53:1242-1246. [PMID: 31795580 DOI: 10.3760/cma.j.issn.0253-9624.2019.12.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [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 status and health risk assessment of dietary fipronil contamination among 20 provinces of China. Methods: A total of 13 kinds of dietary samples in Chinese total diet study include cereals, legumes, potatoes, meats, eggs, aquatics, dairies, vegetables, fruits, sugars, beverages and water, alcohols, condiments and their corresponding products. Among them, condiments were used in the preparation of 12 other sample categories; thus, the actual mixed dietary samples of each province covered 12 groups. A total of 240 mixed dietary samples were collected from 20 provinces in China from 2009 to 2013. After the sample extraction and cleanup, dietary samples were analyzed for the residues of fipronil and its metabolites to obtain the contamination levels of fipronil residues using liquid chromatography-high resolution mass spectrometry. The dietary intake of adult residents was estimated based on food consumption of general population of China. Results: Among the 240 dietary samples, the detection rate of fipronil was 10.4% (25 samples), and the detection rates of fipronil metabolites, i.e. fipronil desulfinyl, fipronil sulfone and fipronil sulfide were 20.4% (49 samples), 40.0% (96 samples) and 8.8% (21 samples), respectively. According to the dietary exposure analysis, the average lower and upper dietary exposure levels of fipronil residues in adult residents of China were 11.34 and 12.35 ng·kg(-1)·d(-1), accounting for 5.7% and 6.2% of acceptable daily intake (ADI), respectively. The highest adult dietary intake of fipronil residues was found in Hunan province, with a value of 72.98 ng·kg(-1)·d(-1), accounting for 36.5% of ADI. Vegetables were the main dietary source of fipronil residues, which contributed to 71.0% of the total intake dose. Conclusion: Fipronil residues were detected in varying degrees in dietary samples, yet the health risk caused by the dietary intake of adult residents among 20 provinces of China is low.
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Affiliation(s)
- D W Chen
- National Health and Health Commission Key Laboratory of Food Safety Risk Assessment/Food Safety Research Unit (2019RU014) of Chinese Academy of Medical Science/China National Center for Food Safety Risk Assessment, Beijing 100021, China
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Xia YQ, Zhao KN, Zhao AD, Zhu JZ, Hong HF, Wang YL, Li SH. Associations of maternal upper respiratory tract infection/influenza during early pregnancy with congenital heart disease in offspring: evidence from a case-control study and meta-analysis. BMC Cardiovasc Disord 2019; 19:277. [PMID: 31791237 PMCID: PMC6889668 DOI: 10.1186/s12872-019-1206-0] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2019] [Accepted: 09/24/2019] [Indexed: 01/04/2023] Open
Abstract
Background Evidences regarding the associations between maternal upper respiratory tract infection/influenza during pregnancy and the risk of congenital heart disease (CHD) is still controversial. This study was specifically designed to examine the associations by a case-control study and a meta-analysis of the published evidences and our finding. Methods A hospital-based case-control study involving 262 children with simple CHD and 262 children with complex CHD, along with 262 control children, was conducted through June, 2016 to December, 2017. All children were aged 0–2 years old. Furthermore, a meta-analysis based on both previously published studies and our case-control study was performed. Results In the case-control study, after adjusting for possible confounders, maternal upper respiratory tract infection/influenza during early pregnancy was found to be related to an increased risk of CHD (OR = 3.40 and 95% CI: 2.05–5.62 for simple CHD; OR = 2.39 and 95% CI: 1.47–3.88 for complex CHD). After a meta-analysis, the adverse impact was still kept significant (OR = 1.47 and 95% CI: 1.28–1.67 for simple CHD; OR = 1.44 and 95% CI: 1.14–1.75 for complex CHD). The very similar associations were also observed among single type of CHD, herein, ventricular septal defects (VSD) and tetralogy of fallot (TOF) in the case-control study. In the subsequent meta-analysis, however, the significant association only existed in VSD. Conclusions Although there is still conflicting in TOF, the results are overall consistent, which provide new enforced evidence that maternal upper respiratory tract infection/influenza during early pregnancy, in general, play an important role in the occurrence of CHD.
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Affiliation(s)
- Y Q Xia
- School of Public Health, Shanghai Jiao Tong University, 227 South Chongqing Road, Huangpu District, Shanghai, 200025, China
| | - K N Zhao
- School of Public Health, Shanghai Jiao Tong University, 227 South Chongqing Road, Huangpu District, Shanghai, 200025, China
| | - A D Zhao
- School of Public Health, Shanghai Jiao Tong University, 227 South Chongqing Road, Huangpu District, Shanghai, 200025, China
| | - J Z Zhu
- China Hospital Development Institute, Shanghai Jiao Tong University, Shanghai, China
| | - H F Hong
- Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Y L Wang
- Prenatal Diagnosis Department, International Peace Maternity & Child Health Hospital, Shanghai Jiao Tong University School of Medicine, 910 Hengshan Road, Xuhui District, Shanghai, 200030, China.
| | - S H Li
- School of Public Health, Shanghai Jiao Tong University, 227 South Chongqing Road, Huangpu District, Shanghai, 200025, China.
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Liu ZT, Xie Q, Wu M, Cao WH, Li DY, Li SH. Electroencephalogram Emotion Recognition Based on Empirical Mode Decomposition and Optimal Feature Selection. IEEE Trans Cogn Dev Syst 2019. [DOI: 10.1109/tcds.2018.2868121] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Chen WQ, Li SH, Zhang YL, Deng Y, Xu BL, Zhang HW, Lin XM, Li P, Zhao YL, Yang CY, Qian D, Zhou RM, Liu Y, Chen JS. [Prevalence and influencing factors of intestinal parasitic diseases among rural children in Henan Province]. Zhongguo Xue Xi Chong Bing Fang Zhi Za Zhi 2019; 31:491-497. [PMID: 31713377 DOI: 10.16250/j.32.1374.2019053] [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: 11/27/2022]
Abstract
OBJECTIVE To understand the epidemic status and influencing factors of intestinal parasitic diseases among rural children in Henan Province. METHODS According to the Scheme for The National Survey on Current Status of Major Human Parasitic Diseases in China, the survey counties were selected based on the ecological zones and economic levels in Henan Province between 2014 and 2015. Then, the included counties were stratified according to the topography and economic levels. A township was randomly sampled from each stratum, and a village was randomly sampled from each township as the study site. Finally, a total of 104 study sites from 35 counties were enrolled for the survey of intestinal parasitic diseases in children. At least 250 fresh stool samples were collected from each study site for detection of intestinal helminth eggs with the Kato-Katz technique, for the identification of Necator americanus and Ancylostoma duodenale with the fecal culture method, and for the detection of intestinal protozoa trophozoite and cyst with the physiological saline smear and iodine staining techniques. In addition, the Enterobius vermicularis and tapeworm eggs were detected in children aged 3 to 6 years using the adhesive cellophane-tape perianal swab method. RESULTS The overall prevalence of intestinal parasitic infections was 3.21% (214/6 671) among rural children in Henan Province, and the prevalence of intestinal helminthes (2.62%, 175/6 671) was higher than that of intestinal protozoa (0.60%, 40/6 671). A total of 12 species of intestinal parasites were found, including 4 nematodes species, one trematode species, and 7 protozoa species, and the highest infection was seen in E. vermicularis (2.47%, 161/6 671). Among the four ecological zones in Henan Province, the greatest prevalence of intestinal parasitic infections was detected among children in the Qinba Mountain Ecological Zone (5.85%, 90/1 538). There was no gender-specific difference in the prevalence of intestinal parasitic infections in children (P > 0.05); however, there were age- (χ2 = 32.762, P < 0.05) and education level-specific differences in the prevalence of intestinal parasitic infections in children (χ2 = 67.507, P < 0.05), with the greatest prevalence of E. vermicularis infection seen in all species of intestinal parasites in children at all age groups. Multivariate non-conditional logistic regression analysis showed that high education level, high coverage of harmless toilets, drinking tap water and deworming were protective factors for intestinal parasitic infections in children in Henan Province. The overall prevalence of intestinal parasitic infections appeared a tendency towards a gradual decline among children in Henan Province as compared to the previous two surveys. CONCLUSIONS The overall prevalence of intestinal parasitic infections shows a tendency towards a remarkable decline among children in Henan Province. E. vermicularis infection should be given a priority for future parasitic disease control activities among rural children in Henan Province.
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Affiliation(s)
- W Q Chen
- Henan Center for Disease Control and Prevention, Zhengzhou 450016, China
| | - S H Li
- Henan Center for Disease Control and Prevention, Zhengzhou 450016, China
| | - Y L Zhang
- Henan Center for Disease Control and Prevention, Zhengzhou 450016, China
| | - Y Deng
- Henan Center for Disease Control and Prevention, Zhengzhou 450016, China
| | - B L Xu
- Henan Center for Disease Control and Prevention, Zhengzhou 450016, China
| | - H W Zhang
- Henan Center for Disease Control and Prevention, Zhengzhou 450016, China
| | - X M Lin
- Henan Center for Disease Control and Prevention, Zhengzhou 450016, China
| | - P Li
- Henan Center for Disease Control and Prevention, Zhengzhou 450016, China
| | - Y L Zhao
- Henan Center for Disease Control and Prevention, Zhengzhou 450016, China
| | - C Y Yang
- Henan Center for Disease Control and Prevention, Zhengzhou 450016, China
| | - D Qian
- Henan Center for Disease Control and Prevention, Zhengzhou 450016, China
| | - R M Zhou
- Henan Center for Disease Control and Prevention, Zhengzhou 450016, China
| | - Y Liu
- Henan Center for Disease Control and Prevention, Zhengzhou 450016, China
| | - J S Chen
- Henan Center for Disease Control and Prevention, Zhengzhou 450016, China
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Abstract
To explore how to diagnose and treat brucellosis accurately and timely in patients with fever of unkown origin in non-pastoral areas. The epidemiological history, clinical symptoms, complete blood counts, procalcitonin and treatment efficacy of 7 patients with brucellosis were analyzed retrospectively. Some characteristic manifestations should be differentiated from tuberculosis. The clinical symptoms were relieved after combination of doxycycline, rifampicin, levofloxacin and amikacin for 6 weeks, only one patient with bone destruction needed orthopedic surgery. The overall response rate was 6/7. No relapse occurred during half year follow-up.
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Affiliation(s)
- M J Yuan
- Department of Infectious Diseases, the First People's Hospital in Yueyang, Yueyang 414000, China
| | - S H Li
- Department of Infectious Diseases, the First People's Hospital in Yueyang, Yueyang 414000, China
| | - Y Huang
- Department of Rehabilitation, the First People's Hospital in Yueyang, Yueyang 414000, China
| | - W D Fu
- Department of Radiology, the First People, s Hospital in Yueyang, Yueyang 414000, China
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Soo YO, Abrigo J, Chu W, Leung KT, Fong WC, Li SH, Li R, Ng PW, Wong KK, Wong LKS, Leung TWH. Risk of intracerebral haemorrhage in patients with cerebral microbleeds taking warfarin for atrial fibrillation: a prospective study. Hong Kong Med J 2019; 25 Suppl 5:6-8. [PMID: 31416977] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/10/2023] Open
Affiliation(s)
- Y O Soo
- Department of Medicine and Therapeutics, Prince of Wales Hospital, The Chinese University of Hong Kong
| | - J Abrigo
- Department of Imaging and Interventional Radiology, Prince of Wales Hospital, The Chinese University of Hong Kong
| | - W Chu
- Department of Imaging and Interventional Radiology, Prince of Wales Hospital, The Chinese University of Hong Kong
| | - K T Leung
- Department of Medicine and Therapeutics, Prince of Wales Hospital, The Chinese University of Hong Kong
| | - W C Fong
- Department of Medicine, Queen Elizabeth Hospital
| | - S H Li
- Department of Medicine, North District Hospital
| | - R Li
- Department of Medicine, Pamela Youde Nethersole Eastern Hospital
| | - P W Ng
- Department of Medicine and Geriatrics, United Christian Hospital
| | - K K Wong
- Department of Medicine, Yan Chai Hospital
| | - L K S Wong
- Department of Medicine and Therapeutics, Prince of Wales Hospital, The Chinese University of Hong Kong
| | - T W H Leung
- Department of Medicine and Therapeutics, Prince of Wales Hospital, The Chinese University of Hong Kong
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He TY, Li SH, Huang J, Gong M, Li G. Prognostic value of long non-coding RNA CRNDE in gastrointestinal cancers: a meta-analysis. Cancer Manag Res 2019; 11:5629-5642. [PMID: 31296996 PMCID: PMC6596349 DOI: 10.2147/cmar.s201646] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2019] [Accepted: 05/24/2019] [Indexed: 01/16/2023] Open
Abstract
Purpose Numerous studies have reported that the long non-coding RNA colorectal neoplasia differentially expressed (CRNDE) plays important roles in the tumorigenesis, progression, and prognosis of various types of cancer. However, thus far, a systematic analysis of CRNDE in cancers of the digestive system has not been conducted. Thus, the aim of this meta-analysis was to explore the relationship between CRNDE expression and survival or the clinicopathological features of gastrointestinal cancer. Methods Eligible studies were collected from nine databases (ie, PubMed, Medline, Embase, Cochrane Library, Ovid, Science Citation Index Expanded, China Biology Medicine, Chinese National Knowledge Infrastructure, and Wanfang). The meta-analysis was conducted using the Stata SE.12 Software. The pooled hazard ratio (HR) or odds ratio (OR) with a 95% confidence interval (Cl) was used to assess the clinical value of CRNDE expression in gastrointestinal cancers. Results A total of 1,053 patients from nine articles were selected. The analysis provided evidence suggesting a significant negative correlation between high CRNDE expression and the rate of overall survival [HR=1.92, 95% CI (1.40–2.64), p<0.001] in patients with malignancies of the digestive system. A positive correlation was observed between high CRNDE expression and lymph node metastasis [OR=2.82, 95% CI (1.85–4.31), p<0.001], distant metastasis [OR=2.72, 95% CI (1.16–6.35), p=0.021], more advanced tumor-node-metastasis stage [OR=3.13, 95% CI (2.03–4.83), p<0.001], and tumor size >5 cm [OR=2.81, 95% CI (1.62–4.88), p<0.001]. In the non-colorectal cancer subgroup, high CRNDE expression predicted worse histopathological grade [OR=2.21, 95% CI (1.37–3.57), p=0.001] and depth of tumor invasion [OR=2.54, 95% CI (1.46–4.41), p=0.001]. Conclusion This meta-analysis revealed that CRNDE may be an unfavorable risk factor of survival and predict advanced clinicopathological features of patients with gastrointestinal cancer. These findings emphasize the usefulness of CRNDE as a predictor of prognosis and pathological biomarker in this type of tumors.
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Affiliation(s)
- Tian-Yu He
- Department of Radiation Oncology, The First Hospital of China Medical University, Shenyang, Liaoning, People's Republic of China
| | - Si-Han Li
- Department of Radiation Oncology, The First Hospital of China Medical University, Shenyang, Liaoning, People's Republic of China
| | - Jin Huang
- Department of Radiation Oncology, The First Hospital of China Medical University, Shenyang, Liaoning, People's Republic of China
| | - Ming Gong
- Department of Radiation Oncology, The First Hospital of China Medical University, Shenyang, Liaoning, People's Republic of China
| | - Guang Li
- Department of Radiation Oncology, The First Hospital of China Medical University, Shenyang, Liaoning, People's Republic of China
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Wang HW, Liu J, Zhao WP, Zhang ZH, Li SQ, Li SH, Zhu SQ, Zhou BH. Effect of Fluoride on Small Intestine Morphology and Serum Cytokine Contents in Rats. Biol Trace Elem Res 2019; 189:511-518. [PMID: 30215190 DOI: 10.1007/s12011-018-1503-y] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/19/2018] [Accepted: 08/30/2018] [Indexed: 12/27/2022]
Abstract
This study aimed to determine the effect of excessive fluoride (F) on the morphological characteristics of the small intestine and the contents of serum cytokines in rats. A total of 48 3-week-old healthy female Sprague-Dawley rats were randomly divided into four groups (n = 12). The control group was given deionized distilled water, while the F treatment groups were treated with water containing 25, 50, and 100 mg F-/L. After 70 days of treatment, the duodenum, the jejunum, and the ileum were collected to measure the developmental parameters and the distribution of intestinal glycoproteins, goblet cells, and mast cells through Pannoramic Viewer, Periodic Acid-Schiff (PAS) staining, Alcian blue and periodic acid-Schiff (AB-PAS) staining, and toluidine blue staining, respectively. The contents of cytokines, namely, interleukin (IL)-1β, IL-2, IL-6, and tumor necrosis factor (TNF)-α, in serum were detected via enzyme-linked immunosorbent assay (ELISA). Results showed that the villus height, crypt depth, villus height to crypt depth ratio, goblet cells, glycoproteins, and mast cells of the small intestine significantly decreased (P < 0.05 or P < 0.01) in the F treatment group. The contents of IL-1β, IL-2, IL-6, and TNF-α were significantly lower in the F treatment group than in the control group (P < 0.05 or P < 0.01). In summary, excessive F intake impaired intestinal development and immune function by decreasing the developmental parameters and the distribution of immune cells, glycoproteins, and cytokines.
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Affiliation(s)
- Hong-Wei Wang
- College of Animal Science and Technology, Henan University of Science and Technology, Kaiyuan Avenue 263, Luoyang, 471000, Henan, People's Republic of China.
| | - Jing Liu
- College of Animal Science and Technology, Henan University of Science and Technology, Kaiyuan Avenue 263, Luoyang, 471000, Henan, People's Republic of China
| | - Wen-Peng Zhao
- College of Animal Science and Technology, Henan University of Science and Technology, Kaiyuan Avenue 263, Luoyang, 471000, Henan, People's Republic of China
| | - Zi-Hao Zhang
- College of Animal Science and Technology, Henan University of Science and Technology, Kaiyuan Avenue 263, Luoyang, 471000, Henan, People's Republic of China
| | - Si-Qi Li
- College of Animal Science and Technology, Henan University of Science and Technology, Kaiyuan Avenue 263, Luoyang, 471000, Henan, People's Republic of China
| | - Si-Han Li
- College of Animal Science and Technology, Henan University of Science and Technology, Kaiyuan Avenue 263, Luoyang, 471000, Henan, People's Republic of China
| | - Shi-Quan Zhu
- College of Animal Science and Technology, Henan University of Science and Technology, Kaiyuan Avenue 263, Luoyang, 471000, Henan, People's Republic of China
| | - Bian-Hua Zhou
- College of Animal Science and Technology, Henan University of Science and Technology, Kaiyuan Avenue 263, Luoyang, 471000, Henan, People's Republic of China.
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Liu ZT, Li SH, Cao WH, Li DY, Hao M, Zhang R. Combining 2D Gabor and Local Binary Pattern for Facial Expression Recognition Using Extreme Learning Machine. JACIII 2019. [DOI: 10.20965/jaciii.2019.p0444] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
The efficiency of facial expression recognition (FER) is important for human-robot interaction. Detection of the facial region, extraction of discriminative facial expression features, and identification of categories of facial expressions are all related to the recognition accuracy and time-efficiency. An FER framework is proposed, in which 2D Gabor and local binary pattern (LBP) are combined to extract discriminative features of salient facial expression patches, and extreme learning machine (ELM) is adopted to identify facial expression categories. The combination of 2D Gabor and LBP can not only describe multiscale and multidirectional textural features, but also capture small local details. The FER of ELM and support vector machine (SVM) is performed using the Japanese female facial expression database and extended Cohn-Kanade database, respectively, in which both ELM and SVM achieve an accuracy of more than 85%, and the computational efficiency of ELM is higher than that of SVM. The proposed framework has been used in the multimodal emotional communication based humans-robots interaction system, in which FER within 2 seconds enables real-time human-robot interaction.
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Li SH, Xu B, An ZF, Wang ZJ, Li YX, Wei L, Wei DB. PAI-1 and Maspin gene evolution analysis in plateau zokor ( Myospalax baileyi). J BIOL REG HOMEOS AG 2019; 33:895-903. [PMID: 31189303] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Hypoxia is one of the most obvious environmental characteristics of the Qinghai-Tibet Plateau. Increasing tissue microvessel density is an important mechanism for plateau animals to adapt to the hypoxic environment.
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Affiliation(s)
- S H Li
- State Key Laboratory of Plateau Ecology and Agriculture, Qinghai University, Xining, Qinghai, China
- Research Center for High Altitude Medicine, Qinghai University, Xining, Qinghai, China
- Department of Gastroenterology, Qinghai University Affiliated Hospital, Xining, Qinghai, China
| | - B Xu
- College of Eco-Environmental Engineering, Qinghai University, Xining, Qinghai, China
| | - Z F An
- Research Center for High Altitude Medicine, Qinghai University, Xining, Qinghai, China
| | - Z J Wang
- College of Eco-Environmental Engineering, Qinghai University, Xining, Qinghai, China
| | - Y X Li
- College of Eco-Environmental Engineering, Qinghai University, Xining, Qinghai, China
| | - L Wei
- College of Eco-Environmental Engineering, Qinghai University, Xining, Qinghai, China
| | - D B Wei
- State Key Laboratory of Plateau Ecology and Agriculture, Qinghai University, Xining, Qinghai, China
- College of Eco-Environmental Engineering, Qinghai University, Xining, Qinghai, China
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Jiang XD, Shen C, Li K, Ji YT, Li SH, Jiang F, Shen XM, Li F, Hu Y. [Impact of allergic airway diseases on risk of attention deficit hyperactivity disorder in school-age children]. Zhonghua Er Ke Za Zhi 2019; 55:509-513. [PMID: 28728259 DOI: 10.3760/cma.j.issn.0578-1310.2017.07.008] [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 investigate the impact of allergic airway diseases on the risk of attention deficit hyperactivity disorder (ADHD) in school-age children. Method: Used stratified cluster sampling method, school-age children in first to sixth grade in primary schools in 9 randomly selected cities including Shanghai, Guangzhou, Xi'an, and Wuhan were enrolled in the study. Interview of parents with questionnaires, which included school-age individual and family social environment questionnaire (including history of diagnosed ADHD, allergic rhinitis, and bronchial asthma) and Children's Sleep Habits Questionnaire (CSHQ), were finished and collected during November to December in 2005.Diagnosed allergic rhinitis and asthma by specialist were independent variables and divided into following three categories as no allergic diseases (neither allergic rhinitis nor asthma), single allergic disease (allergic rhinitis or asthma), and combined allergic diseases (allergic rhinitis and asthma). Diagnosed ADHD as dependent variable, binary logistic regress model was used to analyze the risks of ADHD in school-age children. Result: Totally 23 791 questionnaires were handed out, while 22 018 were collected. The children had an average age of (8.8±1.8) years, within which 10 869 were male, and 11 021 were female. The risk ratios of ADHD were 2.197 (95%CI: 1.823-2.648) and 3.150 (95%CI: 2.082-4.760) in children with single allergic disease and combined allergic diseases separately. There was no significant difference after adjusting for the factor of sleep habits, as the risk ratios were 2.055 (95%CI: 1.683-2.508) and 3.140 (95%CI: 2.061-4.784) in children with single and combined allergic airway disease separately. Conclusion: Allergic rhinitis and bronchial asthma increased the risk of ADHD, not depending on sleep habits. Hence, allergic airway diseases could be independent risk factors of ADHD.
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Affiliation(s)
- X D Jiang
- Department of Primary Child Health Care, Children's Hospital of Chongqing Medical University, Ministry of Education Key Laboratory of Child Development and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing Key Laboratory of Pediatrics, Chongqing 400014, China
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Li SH, Yin HB, Ren MR, Wu MJ, Huang XL, Li JJ, Luan YP, Wu YL. TRPV5 and TRPV6 are expressed in placenta and bone tissues during pregnancy in mice. Biotech Histochem 2019; 94:244-251. [PMID: 30916584 DOI: 10.1080/10520295.2018.1548710] [Citation(s) in RCA: 5] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
Abstract
We investigated the dynamic expression of calcium transporters, TRPV5 and TRPV6, in placenta and bone to determine their role in maternal and fetal calcium balance during gestation. In placenta, TRPV5 was expressed predominantly in syncytiotrophoblasts of the labyrinthine zone, whereas TRPV6 was expressed in spongiotrophoblasts of the junction zone. In bone, the two transporters were found in osteoblasts, osteoclasts, cartilage and bone matrices. During the first half of gestation, TRPV5 and TRPV6 levels in bone were increased on pregnancy day (P) 0.5, then decreased on P3.5 followed by a slight increase on P6.5. During the second half of pregnancy, both the proteins and their mRNAs gradually increased from P9.5 to P15.5-P17.5 in both bone and placenta, followed at parturition by relatively high amounts in placenta, but markedly decreased amounts in bone. The expression pattern is likely related to the fetal and maternal calcium requirement during gestation, which may be regulated by estrogen and other hormones, because the fetal demand for calcium is greatest during the last few days of gestation for rats; maternal calcium metabolism is designed to meet the calcium needs of the fetus during this period. We found that TRPV5 and TRPV6 are involved in calcium transport in the placenta and bone, and therefore play a role in calcium homeostasis during embryonic and fetal development.
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Affiliation(s)
- S H Li
- a College of Life Sciences , Southwest Forestry University , Kunming , Yunnan Province , P.R. China
| | - H B Yin
- b Department of Animal Health Quarantine , Animal Disease Inspection and Supervision Institution of Yunnan Province , Kunming , Yunnan Province , P.R. China
| | - M R Ren
- a College of Life Sciences , Southwest Forestry University , Kunming , Yunnan Province , P.R. China
| | - M J Wu
- c School of Science and Health , Western Sydney University , Penrith , NSW , Australia
| | - X L Huang
- a College of Life Sciences , Southwest Forestry University , Kunming , Yunnan Province , P.R. China
| | - J J Li
- a College of Life Sciences , Southwest Forestry University , Kunming , Yunnan Province , P.R. China
| | - Y P Luan
- a College of Life Sciences , Southwest Forestry University , Kunming , Yunnan Province , P.R. China
| | - Y L Wu
- a College of Life Sciences , Southwest Forestry University , Kunming , Yunnan Province , P.R. China
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Li SH, Zhong N, Shu B, Guan H. [Summary of the 2018 Academic Annual Meeting of the Chinese Burn Association]. Zhonghua Shao Shang Za Zhi 2018; 34:914-916. [PMID: 30585058 DOI: 10.3760/cma.j.issn.1009-2587.2018.12.018] [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
The 2018 Academic Annual Meeting of the Chinese Burn Association, sponsored by the Chinese Medical Association and the Chinese Burn Association, was successfully held in Fuzhou, Fujian Province, from October 24th to 27th. The theme of this conference is " One China, One Standard". A total of 1, 798 submissions were received, and 1, 060 registered representatives, more than 2, 000 representatives from 9 countries and regions attended the meeting. Focusing on the theme of " One China, One Standard" , the conference adopted a variety of innovative forms such as academic debate, live surgery, BBS on both sides of the straits, award selection, and so on to provide participants with multiple ways for exchange on the professional hot issues in the key areas of burns. The atmosphere of the conference was warm. The 2019 annual academic conference is scheduled to be held in Zhuhai, China.
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Affiliation(s)
- S H Li
- Department of Burns and Cutaneous Surgery, Burn Center of PLA, Xijing Hospital, Air Force Medical University, Xi'an 710032, China
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Ip MF, Li SH, Wai TY. Lead poisoning—an aetiology not to be missed. Hong Kong Med J 2018. [DOI: 10.12809/hkmj177078] [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] Open
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Yin HL, Li DB, Jiang Y, Li SH, Chen Y, Lin GW. [High-throughput texture analysis in the distinction of single metastatic brain tumors from high-grade gliomas]. Zhonghua Zhong Liu Za Zhi 2018; 40:841-846. [PMID: 30481936 DOI: 10.3760/cma.j.issn.0253-3766.2018.11.009] [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 explore the feasibility of high-throughput texture analysis in the distinction of single brain metastases (SBM) from high-grade gliomas (HGG) and validate the established model. Methods: A total of 86 patients who were histologically diagnosed with SBM or HGG were retrospectively collected, including 43 patients with SBM and 43 with HGG. All of patients were performed preoperative conventional head magnetic resonance imaging (MRI) scans. A total of 236 fluid-attenuated inversion recovery (FLALR) images containing the information of tumors were selected from the MRI images and each image was considered as an object. The training set had 200 images, including 106 from SBM group and 94 from HGG group, whereas the validation set had 36 images, including 19 from SBM group and 17 from HGG. After images preprocessing, images segmentation, features extraction, and features selection, a radiomic diagnostic model was finally established using the training set. The diagnostic performance of the diagnostic model was evaluated using a receiver operating characteristic (ROC) curve. Hierarchical clustering analysis was used to evaluate the quality of the extracted feature data and the classification effect of the model. The model was further validated using the independent validation set. Results: A total of 629 features were extracted and quantified from each sample, and 41 features were selected to establish feature subsets and the diagnostic model. The classification decision function of the model is f(x)=sign■ and the kernel function of the model is K(x, x(i))=exp■. In the training set, the diagnostic accuracy, sensitivity, specificity, positive predictive value and negative predictive value were 0.845, 0.849, 0.840, 0.857 and 0.832, respectively. The area under the ROC curve reached to 0.939. Similar results were obtained in the validation set. Conclusion: The high-throughput texture analysis shows high accuracy in differentiating SBM from HGG.
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Affiliation(s)
- H L Yin
- Department of Radiology, Huadong Hospital Affiliated to Fudan University, Shanghai 200040, China
| | - D B Li
- School of Physics and Materials Science, East China Normal University, Shanghai 200062, China
| | - Y Jiang
- Department of Radiology, Sichuan Key Laboratory of Medical Image, The Affiliated Hospital of North Sichuan Medical College, Nanchong 637000, China
| | - S H Li
- Department of Radiology, Huadong Hospital Affiliated to Fudan University, Shanghai 200040, China
| | - Y Chen
- Department of Radiology, Sichuan Key Laboratory of Medical Image, The Affiliated Hospital of North Sichuan Medical College, Nanchong 637000, China
| | - G W Lin
- Department of Radiology, Huadong Hospital Affiliated to Fudan University, Shanghai 200040, China
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Xu W, Yu SQ, Li SH, Ge RM. [Giant rhinolith: a case report]. Lin Chung Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2018; 30:1972-1973. [PMID: 29798280 DOI: 10.13201/j.issn.1001-1781.2016.24.020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 05/03/2016] [Indexed: 11/12/2022]
Abstract
My department reports a case of giant rhinolith.Rhinolith is a rare and slow-progressing disease. Clinically, rhinolith is easily to be misdiagnosed as sinusitis or sinus tumor. High-resolution computed tomography (HRCT) can be used to diagnose of rhinolith and differentiate it from sinusitis or sinus tumors. HRCT can also provide reliable evidence for evaluating surgery difficulty level and determining operation method.
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Li S, Yip A, Bird J, Seok BS, Chan A, Godden KE, Tam LD, Ghelardoni S, Balaban E, Martinez-Gonzalez D, Pompeiano M. Melanin-concentrating hormone (MCH) neurons in the developing chick brain. Brain Res 2018; 1700:19-30. [PMID: 30420052 DOI: 10.1016/j.brainres.2018.07.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2018] [Revised: 06/27/2018] [Accepted: 07/01/2018] [Indexed: 01/09/2023]
Abstract
The present study was undertaken because no previous developmental studies exist on MCH neurons in any avian species. After validating a commercially-available antibody for use in chickens, immunohistochemical examinations first detected MCH neurons around embryonic day (E) 8 in the posterior hypothalamus. This population increased thereafter, reaching a numerical maximum by E20. MCH-positive cell bodies were found only in the posterior hypothalamus at all ages examined, restricted to a region showing very little overlap with the locations of hypocretin/orexin (H/O) neurons. Chickens had fewer MCH than H/O neurons, and MCH neurons also first appeared later in development than H/O neurons (the opposite of what has been found in rodents). MCH neurons appeared to originate from territories within the hypothalamic periventricular organ that partially overlap with the source of diencephalic serotonergic neurons. Chicken MCH fibers developed exuberantly during the second half of embryonic development, and they became abundant in the same brain areas as in rodents, including the hypothalamus (by E12), locus coeruleus (by E12), dorsal raphe nucleus (by E20) and septum (by E20). These observations suggest that MCH cells may play different roles during development in chickens and rodents; but once they have developed, MCH neurons exhibit similar phenotypes in birds and rodents.
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Affiliation(s)
- SiHan Li
- Department of Psychology, McGill University, Montreal, QC H3A 1B1, Canada
| | - Alissa Yip
- Department of Psychology, McGill University, Montreal, QC H3A 1B1, Canada
| | - Jaimie Bird
- Department of Psychology, McGill University, Montreal, QC H3A 1B1, Canada
| | - Bong Soo Seok
- Department of Psychology, McGill University, Montreal, QC H3A 1B1, Canada
| | - Aimee Chan
- Department of Psychology, McGill University, Montreal, QC H3A 1B1, Canada
| | - Kyle E Godden
- Department of Psychology, McGill University, Montreal, QC H3A 1B1, Canada
| | - Laurel D Tam
- Department of Psychology, McGill University, Montreal, QC H3A 1B1, Canada
| | | | - Evan Balaban
- Department of Psychology, McGill University, Montreal, QC H3A 1B1, Canada
| | | | - Maria Pompeiano
- Department of Psychology, McGill University, Montreal, QC H3A 1B1, Canada.
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Zeng SH, Ou JX, Gu JH, Yang KR, Wang R, Li Z, Li SH, Zhang RL. [Effect of the Chinese Herbal Medicinal Ingredients in Huoxiang Zhengqi Liquid on Alcohol Metabolism in Rats]. Fa Yi Xue Za Zhi 2017; 32:424-427. [PMID: 29205968 DOI: 10.3969/j.issn.1004-5619.2016.06.007] [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] [Subscribe] [Scholar Register] [Received: 03/17/2016] [Indexed: 11/18/2022]
Abstract
OBJECTIVES To study the changes of alcohol content and pharmacokinetic parameter in rats after taking Huoxiang Zhengqi liquid. METHODS The rats were randomly divided into three groups and given with white alcohol at the dose of 3.0 mL/kg, low-dose and high-dose Chinese medicine liquor, respectively. The blood was collected before administration and 5 min, 10 min, 15 min, 30 min, 1 h, 2 h, 3 h, 4 h, 5 h, 6 h and 8 h after administration by cutting rats' tails. The concentrations of alcohol in blood were detected by headspace-gas chromatography method. The main pharmacokinetic parameters were calculated by DAS 2.0, and then analyzed by SPSS 17.0. RESULTS The difference of maximum blood concentrations between high-dose Chinese medicine alcohol group and white alcohol group was statistically significant (P<0.05). There was no significant difference in other pharmacokinetic parameters among three groups (P>0.05). CONCLUSIONS The Chinese herbal medicinal ingredients in the Huoxiang Zhengqi liquid has no effect on the metabolism and elimination of ethanol in rats. The research provides useful reference for the qualitative assessment and processing of traffic accident cases involved in Huoxiang Zhengqi liquid and the studies related to drug-interaction.
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Affiliation(s)
- S H Zeng
- School of Forensic Medicine, Kunming Medical University, Kunming 650500, China
| | - J X Ou
- Criminal Investigation Corps, Public Security Department of Yunnan Province, Kunming 650228, China
| | - J H Gu
- School of Forensic Medicine, Kunming Medical University, Kunming 650500, China
| | - K R Yang
- School of Forensic Medicine, Kunming Medical University, Kunming 650500, China
| | - R Wang
- School of Forensic Medicine, Kunming Medical University, Kunming 650500, China
| | - Z Li
- Traffic Police Branch, Kunming Public Security Bureau, Kunming 650031, China
| | - S H Li
- School of Forensic Medicine, Kunming Medical University, Kunming 650500, China
| | - R L Zhang
- School of Forensic Medicine, Kunming Medical University, Kunming 650500, China
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Lau AY, Ip WK, Au C, Lau KK, Wong W, Yip KK, Yeung J, Li SH, Li P, Lee R, Siu D, Abrigo J, Wong A, Mok V, Chan E. Prevalence of neutralising antibodies to interferon-beta and clinical response in Chinese patients with relapsing multiple sclerosis. Mult Scler J Exp Transl Clin 2017; 3:2055217317733485. [PMID: 29051830 PMCID: PMC5637981 DOI: 10.1177/2055217317733485] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2017] [Accepted: 08/27/2017] [Indexed: 11/15/2022] Open
Abstract
Background There are no data on neutralising antibodies to interferon-beta and its clinical implications in Chinese patients with multiple sclerosis (MS). Objectives The objectives of this study were to investigate the prevalence of neutralising antibodies among Chinese patients with relapsing MS receiving interferon-beta (1a or 1b) and to study the association between neutralising antibodies and the clinical-radiological response. Methods We performed a cross-sectional study on MS patients who received interferon-beta for 9 months or more, and evaluated the clinical response by relapses and magnetic resonance imaging lesions. Blood samples were evaluated for myxovirus resistance protein A (MxA) gene expression by polymerase chain reaction, anti-interferon-beta binding antibodies by enzyme-linked immunosorbent assay, and neutralising antibodies by cell-based MxA protein induction and luciferase reporter gene assays. Assay performances were evaluated by receiver operating characteristic analysis. Results Among 78 subjects recruited, 61/77 (79%) had anti-interferon-beta binding antibodies, and 22/78 (28%) had neutralising antibodies by MxA protein induction assay. The presence of high-titre neutralising antibodies was associated with poor clinical outcome (odds ratio 6.1, 95% confidence interval 1.5–25.6, P = 0.013). The sensitivity and specificity for neutralising antibodies using MxA gene expression assay (cut-off 0.20) was 80% and 68%, respectively (area under the curve 0.71). Conclusions Neutralising antibodies are associated with poor clinical outcome in Chinese patients with relapsing MS. MxA gene expression and protein induction assays are complimentary assays for neutralising antibody detection.
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Affiliation(s)
- Alexander Y Lau
- Department of Medicine and Therapeutics, Prince of Wales Hospital, Hong Kong
| | - W K Ip
- Department of Pathology, Queen Mary Hospital, Hong Kong
| | - Cheryl Au
- Department of Medicine and Therapeutics, Prince of Wales Hospital, Hong Kong
| | - K K Lau
- Department of Medicine and Geriatrics, Princess Margaret Hospital, Hong Kong
| | - Winnie Wong
- Department of Medicine and Geriatrics, Caritas Medical, Centre, Hong Kong
| | - K K Yip
- Ruttonjee Hospital, Hong Kong
| | - Jonas Yeung
- Alice Ho Miu Ling Nethersole Hospital, Hong Kong
| | - S H Li
- North District Hospital, Hong Kong
| | - Patrick Li
- Department of Medicine, Queen Elizabeth Hospital, Hong Kong
| | - Ryan Lee
- Department of Imaging and Interventional Radiology, Prince of Wales Hospital, Hong Kong
| | - Deyond Siu
- Department of Imaging and Interventional Radiology, Prince of Wales Hospital, Hong Kong
| | - Jill Abrigo
- Department of Imaging and Interventional Radiology, Prince of Wales Hospital, Hong Kong
| | - Adrian Wong
- Department of Medicine and Therapeutics, Prince of Wales Hospital, Hong Kong
| | - Vincent Mok
- Department of Medicine and Therapeutics, Prince of Wales Hospital, Hong Kong
| | - Eric Chan
- Department of Pathology, Queen Mary Hospital, Hong Kong
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Chung CY, Li SH, Li KKW. Focal choroidal excavation-morphological features and clinical correlation. Eye (Lond) 2017; 31:1373-1379. [PMID: 28452991 DOI: 10.1038/eye.2017.71] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2016] [Accepted: 03/26/2017] [Indexed: 11/09/2022] Open
Abstract
PurposeTo describe and correlate the morphological and clinical features of focal choroidal excavation (FCE).MethodsThis is a consecutive case series from the review of the 4436 optical coherence tomography scans performed by Kowloon East Cluster Ophthalmic Service from 1 August 2014-31 January 2016. Statistical analysis was performed on SPSS 18.0 (SPSS, Chicago, IL, USA). A significance level of P<0.05 was taken.ResultsAll 16 patients with FCE had unilateral involvement. The mean age of diagnosis was 52.56±14.00. The mean greatest linear dimension (GLD) of FCE was 636.25±265.11 μm. The mean choroidal thickness was 183.63±52.39 μm. Fourteen FCEs (87.5%) were conforming and two were non-conforming (12.5%). In the eyes with FCE, concurrent macular pathology was present in four cases (25.0%). Tractional pathologies of macular pucker and macular scar corresponded to the two non-conforming FCEs in the series. Polypoidal choroidal vasculopathy (PCV) and lacquer crack had a close topographic relationship with the FCE. The mean GLD was significantly larger in eyes with concurrent macular pathology than those without (878.00 vs 555.67 μm, P=0.029). In the fellow eyes, concurrent macular pathology was present in 5 cases (31.3%): PCV in 3 cases and chronic central serous chorioretinopathy in 2 cases.ConclusionAs a significant proportion of FCE is associated with concurrent macular pathology in the involved or fellow eye, angiography for both eyes is recommended even for asymptomatic cases. The GLD of FCE may have clinical value in risk stratification.
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Affiliation(s)
- C Y Chung
- Department of Ophthalmology, United Christian Hospital, Kowloon, Hong Kong.,Department of Ophthalmology, Tseung Kwan O Hospital, Kowloon, Hong Kong.,Department of Ophthalmology, LKS Faculty of Medicine, The University of Hong Kong, Hong Kong, Hong Kong
| | - S H Li
- Department of Ophthalmology, United Christian Hospital, Kowloon, Hong Kong.,Department of Ophthalmology, Tseung Kwan O Hospital, Kowloon, Hong Kong.,Department of Ophthalmology, LKS Faculty of Medicine, The University of Hong Kong, Hong Kong, Hong Kong
| | - K K W Li
- Department of Ophthalmology, United Christian Hospital, Kowloon, Hong Kong.,Department of Ophthalmology, Tseung Kwan O Hospital, Kowloon, Hong Kong.,Department of Ophthalmology, LKS Faculty of Medicine, The University of Hong Kong, Hong Kong, Hong Kong
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Wen JT, Zhang DH, Fang PF, Li MH, Wang RJ, Li SH. Role of Th1/Th2 cytokines in the diagnosis and prognostic evaluation of ankylosing spondylitis. Genet Mol Res 2017; 16:gmr-16-01-gmr.16019322. [PMID: 28362980 DOI: 10.4238/gmr16019322] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Ankylosing spondylitis (AS), a progressive disease of the spine, manifests as peripheral arthritis with tendon and ligament inflammation that restricts activity. AS is a rheumatoid autoimmune disease although the rheumatoid factor is absent in patients with AS. It is characterized by inflammatory changes such as elevated levels of serum inflammatory factors. The roles of Th1 and Th2 cytokines in autoimmune diseases are well known. However, the roles of these cytokines in the diagnosis and prognosis of AS is poorly understood. The aim of this study was to investigate the roles of Th1/Th2 cytokines in the diagnosis and prognosis of AS. The BASDAI activity, BASFI functional index, BASMI measurement score, and the levels of CRP and ESR were measured during the treatment of patients with active AS. The levels of IFN-γ and TNF-α (Th1 cytokines) and IL-4 and IL-10 (Th2 cytokines) were quantified. The levels of IL-4 and IL-10 were significantly low in the serum of patients with active AS, who also had high IFN-γ and TNF-α levels compared to those in the control individuals (P < 0.05). After treatment, the levels of IL-4 and IL-10 increased while those of IFN-γ and TNF-α decreased compared to those in individuals with active AS (P < 0.05). The disease activity index correlated positively with levels of IFN-γ and TNF-α and negatively with levels of IL-4 and IL-10, but not with that of CRP or ESR. Changes in the levels of Th1/2 cytokines in patients with AS may reflect disease activity and prognosis.
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Affiliation(s)
- J T Wen
- Department of Orthopedics, TCM Hospital of Gansu Province, Lanzhou, Gansu, China
| | - D H Zhang
- Department of Orthopedics, TCM Hospital of Gansu Province, Lanzhou, Gansu, China
| | - P F Fang
- Department of Orthopedics, the Baiyin branch of TCM Hospital of Gansu Province, Lanzhou, Gansu, China
| | - M H Li
- Department of Orthopedics, the Baiyin branch of TCM Hospital of Gansu Province, Lanzhou, Gansu, China
| | - R J Wang
- Department of Orthopedics, the Baiyin branch of TCM Hospital of Gansu Province, Lanzhou, Gansu, China
| | - S H Li
- Department of Orthopedics, TCM Hospital of Gansu Province, Lanzhou, Gansu, China
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Chan A, Li S, Lee AR, Leung J, Yip A, Bird J, Godden KE, Martinez-Gonzalez D, Rattenborg NC, Balaban E, Pompeiano M. Activation of state-regulating neurochemical systems in newborn and embryonic chicks. Neuroscience 2016; 339:219-234. [DOI: 10.1016/j.neuroscience.2016.09.048] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2016] [Revised: 09/14/2016] [Accepted: 09/28/2016] [Indexed: 12/22/2022]
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Wen J, Li HT, Li SH, Li X, Duan JM. Investigation of modified platelet-rich plasma (mPRP) in promoting the proliferation and differentiation of dental pulp stem cells from deciduous teeth. ACTA ACUST UNITED AC 2016; 49:e5373. [PMID: 27599200 PMCID: PMC5018690 DOI: 10.1590/1414-431x20165373] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2016] [Accepted: 07/25/2016] [Indexed: 01/09/2023]
Abstract
Stem cells from human exfoliated deciduous teeth (SHEDs) have great potential to treat various dental-related diseases in regenerative medicine. They are usually maintained with 10% fetal bovine serum (FBS) in vitro. Modified platelet-rich plasma (mPRP) would be a safe alternative to 10% FBS during SHEDs culture. Therefore, our study aimed to compare the proliferation and differentiation of SHEDs cultured in mPRP and FBS medium to explore an optimal concentration of mPRP for SHEDs maintenance. Platelets were harvested by automatic blood cell analyzer and activated by repeated liquid nitrogen freezing and thawing. The platelet-related cytokines were examined and analyzed by ELISA. SHEDs were extracted and cultured with different concentrations of mPRP or 10% FBS medium. Alkaline phosphatase (ALP) activity was measured. Mineralization factors, RUNX2 and OCN, were measured by real-time PCR. SHEDs were characterized with mesenchymal stem cells (MSCs) markers including vimentin, CD44, and CD105. mPRP at different concentrations (2, 5, 10, and 20%) enhanced the growth of SHEDs. Moreover, mPRP significantly stimulated ALP activity and promoted expression of RUNX2 and OCN compared with 10% FBS. mPRP could efficiently facilitate proliferation and differentiation of SHEDs, and 2% mPRP would be an optimal substitute for 10% FBS during SHEDs expansion and differentiation in clinical scale manufacturing.
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Affiliation(s)
- J Wen
- Guangdong Provincial Stomatological Hospital, Guangzhou, Guangdong Province, China
| | - H T Li
- Department of Stomatology, Guangzhou General Hospital, Guangzhou Military Command, Guangzhou, Guangdong Province, China
| | - S H Li
- Department of Stomatology, Guangzhou General Hospital, Guangzhou Military Command, Guangzhou, Guangdong Province, China
| | - X Li
- Department of Stomatology, Zhongshan City People's Hospital, Zhongshan, Guangdon Province, China
| | - J M Duan
- Department of Stomatology, Guangzhou General Hospital, Guangzhou Military Command, Guangzhou, Guangdong Province, China
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