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Wen L, Rong F, Dai G, Liu Y, Lv Y, Luo Q, Liu DX, Chen R. Proteomic analysis of the nonstructural protein 2-host protein interactome reveals a novel regulatory role of SH3 domain-containing kinase-binding protein 1 in porcine reproductive and respiratory syndrome virus replication and apoptosis. Int J Biol Macromol 2025:139218. [PMID: 39755310 DOI: 10.1016/j.ijbiomac.2024.139218] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2024] [Revised: 12/24/2024] [Accepted: 12/24/2024] [Indexed: 01/06/2025]
Abstract
Virus-host protein interaction is critical for successful completion of viral replication cycles. As the largest nonstructural protein (NSP) of porcine reproductive and respiratory syndrome virus (PRRSV), NSP2 plays multiple and critical roles in viral replication, antiviral immunity, cellular tropism and virulence. An interactome of this protein with host proteins would be instrumental in full understanding of these multifunctional roles. In this study, we report the identification of 120 NSP2-interacting host proteins by co-immunoprecipitation coupled liquid chromatography mass spectrometry, via rescuing and utilizing a recombinant PRRSV expressing an HA-tagged NSP2. By comparing and subtracting with cells infected with parental virus, a comprehensive interactome was constructed. Bioinformatics analysis revealed that these host factors are mainly involved in translation regulation, metabolism, signal transduction and innate immunity signaling pathways. Selection of five host proteins (CtBP1, CtBP2, HSPA2, PPP1CA, SH3KBP1) for further verification and characterization confirmed their interactions with NSP2 and differential effects on PRRSV replication. Intriguingly, interaction of NSP2 and SH3KBP1 led to specific cleavage of SH3KBP1, antagonizing its pro-apoptotic activity. Taken together, this study provides overarching views on the NSP2-host interactome, paving a solid foundation for functional studies of host proteins in PRRSV biology and their potential as targets for novel therapeutics development.
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Cheng Q, Rong F, Ye S, Zheng B, Chen X, Ye N, Ling Q, Wu W. Investigating the WNT/TCF pathway and the value of DCE-MRI in predicting and evaluating the efficacy of neoadjuvant radiotherapy and chemotherapy for locally advanced rectal cancer. Cell Mol Biol (Noisy-le-grand) 2023; 69:95-100. [PMID: 37224039 DOI: 10.14715/cmb/2023.69.2.16] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Indexed: 05/26/2023]
Abstract
The purpose of this research was to Detach the DCE-MRI value in predicting and evaluating the efficacy of neoadjuvant radiotherapy and chemotherapy in middle and low locally advanced rectal cancer (READ). For this purpose, 40 patients with READ were examined by DCE-MRI and DWI before CRT treatment and 4 weeks after CRT treatment, and examined by Avanto1.5T magnetic resonance imaging scanner. According to the comparison of the postoperative pathological T stage and pre-nCRT T stage, the patients with decreased stage were defined as the T-descending group, and those with unchanged or elevated staging were defined as the T-undescending group. The ROC curve was used to evaluate the value of ADC value and Ktrans value to predict the early curative effect of neoadjuvant radiation therapy and chemotherapy for READ. Results showed that The ADC values of the two groups after nCRT were higher than those before nCRT (P<0.05). Compared with the pre-nCRT T-decline group and T-non-decline group, the Ktrans value of the pre-T-decline group was higher than that of the T-non-decline group (P<0.05), and the Ktrans value of both groups after the nCRT was higher than that before nCRT (P<0.05). The difference and the rate of ADC in the T-depression group were higher than in the T-undescending group (P<0.05). Taking the change rate of the ADC value 0.17 as the optimal threshold, the sensitivity and specificity of predicting the T-descending stage of patients with READ after neoadjuvant radiotherapy and chemotherapy were 72.69% and 75.84%, respectively (95%CI:0.608-0.954); taking the pre-nCRTKtrans value 1.18/min as the optimal threshold, the sensitivity and specificity to predict the T-descending stage of READ patients after neoadjuvant radiation therapy and chemotherapy was 78.65% and 80.47%, respectively (95%CI:0.637-0.971). There was no significant difference between the change rate of ADC value and the Ktrans value before nCRT in predicting the early efficacy of neoadjuvant radiotherapy and chemotherapy for READ. In conclusion, ADC value and Ktrans value can reflect the tissue structure changes of READ after neoadjuvant chemotherapy. It can be seen that the change rate of ADC value and pre-nCRTKtrans value can predict the early efficacy of neoadjuvant radiotherapy and chemotherapy for READ. The results showed that Axin2 and β-catenin factors along with other factors such as APC and CKI proteins are effective at the molecular level along with other factors in the WNT/TCF signaling pathway. These agents start their activity in the cytoplasm and exert their final effect on the genes in the nucleus.
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Rong F, Liu Z, Yang P, Wu F, Sun Y, Sun X, Zhou J. Epidemiological and Molecular Characteristics of bla NDM-1 and bla KPC-2 Co-Occurrence Carbapenem-Resistant Klebsiella pneumoniae. Infect Drug Resist 2023; 16:2247-2258. [PMID: 37090038 PMCID: PMC10120834 DOI: 10.2147/idr.s400138] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2022] [Accepted: 04/01/2023] [Indexed: 04/25/2023] Open
Abstract
Objective Carbapenem-resistant Klebsiella pneumoniae (CRKP) has emerged and spread worldwide. It can usually cause a serious threat complicating treatment options in clinical settings. However, treatment options are limited. The present study investigates the prevalence and genetic characteristics of bla NDM-1 and bla KPC-2 co-harboring clinical isolates of Klebsiella pneumoniae. Methods In this study, Multiplex polymerase chain reaction (PCR) was performed to detect the carbapenem-resistant genes, and the broth microdilution method was used to determine the minimum inhibitory concentrations (MICs) of antibacterial drugs. The transferability of carbapenem-resistant phenotypes was examined using filter mating assays. Overall, we used Illumina sequencing to evaluate the epidemiological and molecular characteristics of bla NDM-1 and bla KPC-2 (genes encoding carbapenemase) co-occurrence in CRKP strains. Results All strains exhibited resistance to carbapenems and other antibiotics. However, they were still susceptible to polymyxin E. Among them, 18 isolates were positive for bla KPC-2, bla NDM-1, and multiple virulence determinants, such as genes encoding the virulence factor aerobactin, yersiniabactin, and the regulator of the mucoid phenotype (rmpA and rmpA2). Whole genome sequencing revealed that the 18 CRKP strains belonged to ST11 and capsular serotype KL64, and could be grouped into two evolutionary branches. Furthermore, these strains displayed hypervirulence potential since all of them carried pLVPK-like plasmid. Conclusion These findings suggested that ST11-KL64 CRKP strains are major threats in terms of nosocomial infections in this hospital. Hence, new strategies should be urgently developed to monitor, diagnose, and treat this high-risk CRKP clone.
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Rong F, Sun Y, Li X, Zhang C. Drug Resistance Mechanism of Enterobacteriaceae with Decreased Antibiotic Sensitivity. Appl Bionics Biomech 2022; 2022:8285437. [PMID: 36263253 PMCID: PMC9576418 DOI: 10.1155/2022/8285437] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Revised: 09/01/2022] [Accepted: 09/08/2022] [Indexed: 11/17/2022] Open
Abstract
To investigate the mechanism of antibiotic resistance in Enterobacteriaceae. Carbapenem Enterobacteriaceae bacteria isolated from a hospital from January 2015 to June 2020 were selected. Drug resistance phenotype test, drug sensitivity test, and conjugation test were used to observe the drug sensitivity results and the titer of acrB antibody. Finally, the data were statistically analyzed. All strains were resistant to ceftazidime, ceftriaxone, ertapenem, and aztreonam. 87.5% of the samples were resistant to piperacillin. Multisite sequence typing showed that 5 carbapenem-resistant Klebsiella pneumoniae belonged to 4 different types. The sequence types of kpn6099 and kpn6617 were the same. In the sensitivity comparison, Escherichia coli J53 was more sensitive to these two antibiotics, minimum inhibitory concentration values were 0.5 and 0.25 μg/ml, respectively. In addition, the sensitivity of E. coli J53 to carbapenems was slightly higher than that of kpn6617. The results showed that the enzyme-linked immunosorbent assay titer of acrB antibody was 1:40,000, and the preparation of acrB antibody was successful. Plasmid-mediated deletion of IMP-1 metallo-β-lactamase binding outer membrane protein is one of the main reasons for the decrease of antibiotic sensitivity.
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Liu F, Shao M, Xu F, Rong F. Inhibition of NOD1 Attenuates Neonatal Hypoxia-Ischemia Induced Long-Term Cognitive Impairments in Mice Through Modulation of Autophagy-Related Proteins. Neuropsychiatr Dis Treat 2021; 17:2659-2669. [PMID: 34421301 PMCID: PMC8373312 DOI: 10.2147/ndt.s314884] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Accepted: 07/12/2021] [Indexed: 11/25/2022] Open
Abstract
BACKGROUND Autophagy is implicated in neonatal hypoxia-ischemia (HI) induced cognitive impairment. The nucleotide-oligomerizing domain-1 (NOD1), a protein involved in inflammatory responses, has been shown to activate autophagy to promote progression of other diseases. We aimed to investigate whether and how NOD1 is involved in HI-induced brain injury using an HI mouse model. METHODS We induced HI in neonatal mice and examined levels of NOD1 and genes associated with autophagy. We then inhibited NOD1 by intracerebroventricular injection of si-NOD1 following HI induction and tested the effects on autophagy, inflammatory responses and long-term behavioral outcomes through Morris water maze and open field tests. RESULTS We found that HI induction significantly elevated mRNA levels of NOD1 (3.54 folds change) and autophagy-related genes including Atg5 (3.89 folds change) and Beclin-1 (3.34 folds change). NOD1 inhibition following HI induction suppressed autophagy signaling as well as HI induced proinflammatory cytokine production. Importantly, NOD1 inhibition after HI improved long-term cognitive function, without impacting exploratory and locomotor activities. CONCLUSION We show here that NOD1 is involved in the pathogenesis of HI-induced brain injury through modulation of autophagy-related proteins and inflammatory responses. Our findings suggest that NOD1 may be a potent target for developing therapeutic strategies for treating HI-induced brain injury.
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Wu YF, Zheng BC, Chen Q, Chen XD, Ye SS, Lin QY, Ye NH, Rong F. Video-Assisted Modified Ligation of the Intersphincteric Fistula Tract, an Integration of 2 Minimally Invasive Techniques for the Treatment of Parks Type II Anal Fistulas. Surg Innov 2020; 28:419-426. [PMID: 33275087 DOI: 10.1177/1553350620978026] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Introduction. Complex anal fistula (CAF) is a challenging anorectal condition. Although numerous treatments for its management have been proposed, none is ideal. Herein, we investigated the clinical efficacy of video-assisted modified ligation of the intersphincteric fistula tract (LIFT) in comparison with the incision-thread-drawing procedure for Parks type II anal fistulas. Methods. Male and female adult patients with Parks type II anal fistula who were randomized to receive one of two procedures in the Anorectal Surgery Unit of the Affiliated People's Hospital of Ningbo University: video-assisted modified LIFT (test group, 30 cases) or incision thread drawing (control group, 30 cases). Healing and recurrence, postoperative pain, and postoperative autonomous anal control ability were compared. Results. In the test group, the pain scores were significantly lower (P = .001) and wound healing was faster (P = .001). However, there were no marked differences between groups in operative efficacy or postoperative infection rate (all P > .05). We followed all the patients for more than 18 months, with the test group having lower Jorge-Wexner incontinence (P = .005) and fecal incontinence (FI) severity index (P = .000) scores. No significant difference in recurrence (χ2 = .351, P = .554) or healing (χ2 = 1.071, P = .301) rate was found between the 2 groups. Conclusions. We established that video-assisted modified LIFT is superior in repairing Parks type II anal fistulas, with less trauma, quicker recovery, and better anal function.
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Xiang C, Huang M, Xiong T, Rong F, Li L, Liu DX, Chen RA. Transcriptomic Analysis and Functional Characterization Reveal the Duck Interferon Regulatory Factor 1 as an Important Restriction Factor in the Replication of Tembusu Virus. Front Microbiol 2020; 11:2069. [PMID: 32983049 PMCID: PMC7480082 DOI: 10.3389/fmicb.2020.02069] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2020] [Accepted: 08/06/2020] [Indexed: 12/22/2022] Open
Abstract
Duck Tembusu virus (DTMUV) infection has caused great economic losses to the poultry industry in China, since its first discovery in 2010. Understanding of host anti-DTMUV responses, especially the innate immunity against DTMUV infection, would be essential for the prevention and control of this viral disease. In this study, transcriptomic analysis of duck embryonic fibroblasts (DEFs) infected with DTMUV reveals that several innate immunity-related pathways, including Toll-like, NOD-like, and retinoic acid-inducible gene I (RIG-I)-like receptor signaling pathways, are activated. Further verification by RT-qPCR confirmed that RIG-I, MAD5, TLR3, TLR7, IFN-α, IFN-β, MX, PKR, MHCI, MHCII, IL-1β, IL-6, (IFN-regulatory factor 1) IRF1, VIPERIN, IFIT5, and CMPK2 were up-regulated in cells infected with DTMUV. Through overexpression and knockdown/out of gene expression, we demonstrated that both VIPERIN and IRF1 played an important role in the regulation of DTMUV replication. Overexpression of either one significantly reduced viral replication as characterized by reduced viral RNA copy numbers and the envelope protein expression. Consistently, down-regulation of either one resulted in the enhanced replication of DTMUV in the knockdown/out cells. We further proved that IRF1 can up-regulate VIPERIN gene expression during DTMUV infection, through induction of type 1 IFNs as well as directly binding to and activation of the VIPERIN promoter. This study provides a genome-wide differential gene expression profile in cells infected with DTMUV and reveals an important function for IRF1 as well as several other interferon-stimulated genes in restricting DTMUV replication.
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Wang Y, Liang X, Yang J, Wang H, Tan D, Chen S, Cheng J, Chen Y, Sun J, Rong F, Yang W, Liu H, Liu Z, Zheng Y, Liang J, Li S, Liu Z, Hou J. Improved performance of quantitative collagen parameters versus standard histology in longitudinal assessment of nonadvanced liver fibrosis for chronic hepatitis B. J Viral Hepat 2018; 25:598-607. [PMID: 29193542 DOI: 10.1111/jvh.12835] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/02/2017] [Accepted: 10/09/2017] [Indexed: 12/13/2022]
Abstract
Monitoring longitudinal nonadvanced fibrosis is a more common scenario in management of chronic hepatitis B (CHB), for which, however, current evaluation methods generally lack sufficient performance. We conducted a proof-of-concept study to evaluate the performance of quantitative fibrous collagen parameters (q-FP) in the assessment. Data sets from a prior CHB trial (NCT00962533) with mostly mild-to-moderate fibrosis participants were used for this study. 301 subjects with paired liver biopsies were consecutively included. Of these, 139 subjects were used to establish the test and the rest for internal validation. Fibrosis change between baseline and week 104 of treatment was blindly assessed with q-FP and was compared with Ishak fibrosis staging. There were 70% and 93% subjects with Ishak F0-2 at baseline and week 104, respectively. For the test of the subjects, q-FP and Ishak staging showed no difference in determining the incidence of fibrosis regression (68% vs 67%; difference = 0.7%, P = 1.00). Q-FP demonstrated that the regression was independently associated with the antiviral efficacy endpoint (OR 3.0, 95% CI 1.4-6.5, P = .005), but Ishak failed the detection (OR 0.6, 95% CI 0.3-1.3, P = .24). Moreover, q-FP directly revealed a higher fibrosis-resistance to antiviral treatment in virus genotypes C vs B and in males vs females. These results were confirmed in the validation subjects. Additionally, a functional model built on the test subjects showed an accuracy of 82% in stratifying fibrosis reversibility of the validation subjects. In conclusion, q-FP could have improved efficiency and accuracy in the longitudinal assessment of mild-to-moderate CHB fibrosis, indicating a potential alternative to current evaluation methodologies.
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Wang X, Fang Y, Shi B, Huang F, Rong F, Que R, Shao M. Fabrication of Isomorphous Co 3
O 4
@Co 3
O 4
Hierarchical Core-Shell Nanoneedles for High-Performance Supercapacitors. ChemistrySelect 2017. [DOI: 10.1002/slct.201701703] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Villano JS, Rong F, Cooper TK. Bacterial infections in Myd88-deficient mice. Comp Med 2014; 64:110-114. [PMID: 24674585 PMCID: PMC3997288] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2013] [Revised: 09/04/2013] [Accepted: 10/13/2013] [Indexed: 06/03/2023]
Abstract
Three breeding colonies of Myd88(-/-) mice had a history of significant morbidity and mortality. Although strain-specific poor reproductive performance might explain neonatal death and dystocia, mice were found dead or required euthanasia because of moribundity, distended abdomen, head tilt, and seizures. Histopathology results included bacteremia, placentitis, metritis, peritonitis with abscess formation, and suppurative meningoencephalitis. Intralesional gram-negative coccobacilli were present, often in extremely high number. Cultures of samples of the cardiac blood of a mouse and from water-bottle sipper tubes provided to some affected mice grew Pseudomonas aeruginosa. In addition, affected tissues from 2 mice and feces from a third tested PCR-positive for P. aeruginosa. Although the mice had received autoclaved reverse-osmosis-purified drinking water, we suspect that the mice were inoculated with P. aeruginosa through contaminated sipper tubes. Because of the deficiency in most of the Toll-like receptor signaling pathways, these Myd88(-/-) mice were unlikely to have developed competitive innate and adaptive immune responses, resulting in bacterial infections. These clinical cases underscore the importance of understanding how genotype, phenotype and environment affect animal health. Sound husbandry and experimental practices are needed to prevent the exposure of immuno-deficient mice to pathogens.
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Rong F, Li W, Chen K, Li DM, Duan WM, Feng YZ, Li F, Zhou XW, Fan SJ, Liu Y, Tao M. Knockdown of RhoGDIα induces apoptosis and increases lung cancer cell chemosensitivity to paclitaxel. Neoplasma 2012; 59:541-50. [PMID: 22668020 DOI: 10.4149/neo_2012_070] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
This study aimed to investigate the effects of RhoGDIα knockdown on apoptosis and the chemosensitivity of lung cancer cells to paclitaxel. The signaling proteins involved were also assessed. RhoGDIα expression was assessed by RT-PCR, Western blotting and immunohistochemistry. Apoptosis was determined by flow cytometric assessment, and cell viability was measured with the MTT assay. Phosphorylation levels of signaling proteins, ERK, JNK, Akt, Bad and IκBα were tested by Western blotting and immunohistochemistry. Positivity for RhoGDIα in lung cancer tissues was significantly higher than in paracancerous tissues. Downregulation of RhoGDIα was associated with significantly increased apoptosis and repressed cell viability. This effect could be due to the consequent upregulation of p-JNK, as well as decreased levels of p-ERK, p-Bad and p-IκBα. Knockdown of RhoGDIα strengthened the effect on apoptosis and inhibition of cell viability induced by paclitaxel treatment. This chemosensitization effect could be a result of the intensification of pro-apoptotic JNK activation, and repression of anti-apoptotic p-ERK, p-Bad and p-IκBα expression stimulated by paclitaxel. In summary, our study indicated that RhoGDIα could be a promising therapeutic target, and the combination of RhoGDIα siRNA and paclitaxel might be a valuable potential therapy for lung cancer treatment.
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Yinfen W, Weiqiang L, Rong F, Jia L, Daya Y, Chengheng H. Exogenous expression of Isl1 gene in human mesenchymal stem cells by lentiviral transduction. BRITISH HEART JOURNAL 2011. [DOI: 10.1136/heartjnl-2011-300867.41] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Rong F, Zhaogui G, Tugen F. Analysis of Stability and Control in Landfill Sites Expansion. ACTA ACUST UNITED AC 2011. [DOI: 10.1016/j.proeng.2011.11.2715] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Tang L, Yan F, Xu Y, Rong F, Li S, Chen F. [Determination of crocin-1 in rabbit plasma and the pharmacokinetics by RP-HPLC]. YAO XUE XUE BAO = ACTA PHARMACEUTICA SINICA 2004; 39:854-6. [PMID: 15700831] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/01/2023]
Abstract
AIM To develop a sensitive and specific HPLC method for the determination of crocin-1 in rabbit plasma, and study the pharmacokinetics in rabbit. METHODS After i.v. administration of crocin-1 in rabbit, the sample could be well purified after precipitation of protein with methanol. Waters spherisorb C18 column (250 mm x 4.6 mm ID, 5 microm) was used and the mobile phase consisted of methanol-acetonitrile-1% aqueous acetic acid (15:10:50) at the flow rate of 1 mL x min(-1), and the UV detection wave length was 440 nm. The column temperature is 25 degrees C. RESULTS The calibration curve was linear (r = 0.9997) in the range from 0.86 to 27.54 mg x L(-1) for crocin-1. The lowest detectable concentration of crocin-1 was 0.42 mg x L(-1). After given i.v. crocin-1 in rabbit, the concentration-time curves of crocin-1 was shown to fit two-compartment open model. CONCLUSION This method is proved to be rapid, precise and reliable enough to be applied to the pharmacokinetics studies of crocin-1 in rabbit.
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Eisenmenger W, Du XX, Tang C, Zhao S, Wang Y, Rong F, Dai D, Guan M, Qi A. The first clinical results of "wide-focus and low-pressure" ESWL. ULTRASOUND IN MEDICINE & BIOLOGY 2002; 28:769-774. [PMID: 12113789 DOI: 10.1016/s0301-5629(02)00507-0] [Citation(s) in RCA: 54] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
A clinical study of the concept "wide-focus and low-pressure" extracorporal shock-wave lithotripsy (ESWL) was performed in a scientific cooperation between the Physical Institute of the University of Stuttgart and the Xixin Medical Instruments Co. Ltd. in Wuxian-Suzhou, China. In this cooperation, self-focusing electromagnetic shock-wave generator systems from the University of Stuttgart were integrated into Xixin lithotripters and installed in seven hospitals in China. A total of 297 detailed patient protocols revealed an average of 1532 shock pulses for successful treatment with no necessity for pain medication and auxiliary measures, and a stone-free rate of 86% after a follow-up of 3 months. These results are discussed in terms of the wide-focus low-pressure conditions and the mechanism of binary fragmentation by squeezing.
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Terao Y, Nishida J, Horiuchi S, Rong F, Ueoka Y, Matsuda T, Kato H, Furugen Y, Yoshida K, Kato K, Wake N. Sodium butyrate induces growth arrest and senescence-like phenotypes in gynecologic cancer cells. Int J Cancer 2001; 94:257-67. [PMID: 11668507 DOI: 10.1002/ijc.1448] [Citation(s) in RCA: 63] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
We demonstrated here the growth-suppressing effects of sodium butyrate (NaB) on human endometrial and ovarian cancer cells. The arrest of cells at the G1 checkpoint accounted for this effect. NaB-mediated p21 might arrest endometrial and ovarian cancer cells at the G0/G1 phase by eliciting pRb unphosphorylation. To demonstrate the role of pRb regulation by p21, we measured the sensitivity to NaB of cervical cancer cells in which pRb had been inactivated by HPV E7. The cervical cancer cells displayed a sensitivity in NaB-mediated G2/M arrest in addition to their sensitivity in G0/G1 arrest. Arrest at G0/G1 and G2/M accompanied induction of senescence-like phenotypes (SLPs). Most importantly, the effect of NaB on senescence induction was not coupled with the predominance of hypophosphorylated pRb forms in the cervical cancer cells. This suggested that NaB had the potential to elicit SLPs through p21-mediated withdrawal from cell cycle progression. The consequences of p21 induction were manifold. The effects of NaB on gynecologic cancer cell growth indicated its potential use in cancer treatment. NaB was effective even in the cancer cells with mutant p53 and/or Rb genes by eliciting cell senescence.
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Zuo L, Guo S, Rong F. [Pulmonary damage caused by right side infective endocarditis in intravenous drug users]. ZHONGHUA JIE HE HE HU XI ZA ZHI = ZHONGHUA JIEHE HE HUXI ZAZHI = CHINESE JOURNAL OF TUBERCULOSIS AND RESPIRATORY DISEASES 2001; 24:348-50. [PMID: 11802987] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/23/2023]
Abstract
OBJECTIVE To highlight the understanding of pulmonary damage caused by right side infective endocarditis (RIE). METHODS 28 intravenous drug users with pulmonary damage caused by RIE from 1994 to 2000 were reviewed with chest roentgenogram, chest B-ultrasound, blood gas analysis and sputum cultures. RESULTS 100% (28/28) cases with RIE showed pulmonary damage, in which cough 100% (28/28), expectoration 71% (20/28), breathlessness 64% (18/28), pleuritic chest pain 57% (16/28), hemoptysis 36% (10/28) rales were present in 20 cases (71%) (20/28). By chest X-rays 82% (23/28) patients showed pulmonary infiltrative lesion, 21% (6/28) showed multiple thin wall cystic lesion. manifestations for pulmonary embolism were shown in 6 cases (21%). Pleural effusion was confirmed by chest B-ultrasound in 6 cases (21%). Respiratory failure present in 4 cases (4/28). Positive rate of sputum cultures was 54% (15/28). The prognosis for twenty-three patients (82%) when treated with the regimen of 4 to 6 weeks of parenteral antibiotics was good, Five patients (18%) underwent surgery, and two of them died. CONCLUSION The pulmonary damage by RIE should be paid more attention to for avoiding misdiagnosis.
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Rong F, Guo S, Chen J. [Transbronchial needle aspiration in routine bronchoscope practice]. ZHONGHUA JIE HE HE HU XI ZA ZHI = ZHONGHUA JIEHE HE HUXI ZAZHI = CHINESE JOURNAL OF TUBERCULOSIS AND RESPIRATORY DISEASES 2000; 23:37-9. [PMID: 11778180] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/23/2023]
Abstract
OBJECTIVE To evaluate the yield of transbronchial needle aspiration (TBNA) in a clinical routine bronscopy practice after training under the guide by CT scanning. METHODS Using Wang TBNA System and CT scanning methods to define the site in airway for puncturing the enlarged mediastinal lymphnode. The positive rate of TBNA was 64%, almost equal to the positive rate (61%) of the method by operating directly under CT scanning. TBNA was performed on 100 consecutive patients with 152 enlarged mediastinal nodes undergoing diagnostic fiberoptic bronchoscopy. RESULT The positive rate (64%) was equal to the positive rate (61%) under the CT guide. CONCLUSIONS CT guiding TBNA is very useful for training doctors to learn the TBNA technique, and TBNA can be done very well and play an important role in routine bronchoscope practice.
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Abstract
STUDY OBJECTIVES This study was performed to determine whether transbronchial needle aspiration (TBNA) biopsy under CT guidance can increase its diagnostic yield so that this technique can be used for staging of lung cancer at our institution. STUDY DESIGN After an initial unacceptable low yield of TBNA on the first 10 patients (20% positive), we switched the biopsy procedure from the bronchoscopy suite to the CT room. After each passage of the needle to the mediastinum lymph node, CT scan was performed to locate the tip of the needle. If the initial attempt was not successful, TBNA was repeated at the same setting until CT documented that the tip of the needle was exactly inside the lymph node. RESULT A total of 49 patients with 69 mediastinum adenopathies were enrolled in this study. There were 31 patients with malignant mediastinal adenopathy proven by TBNA (60% sensitivity). Fifteen patients showed normal results of needle aspiration despite the presence of primary lung cancer. Three patients showed mediastinal abscesses. CONCLUSION Despite numerous successful reports in the literature, the general application of the TBNA procedure appears to be limited because of its low sensitivity, although this could be due to numerous factors. However, using CT guidance to be sure that the tip of the needle is exactly inside the node can increase its sensitivity markedly. It may also increase the specificity of normal results of TBNA biopsy.
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Rong F, Xue Y, Sun J. [Strain of screening high toxin--producing from Corynebacterium diphtheria PW8-weissensee]. WEI SHENG WU XUE BAO = ACTA MICROBIOLOGICA SINICA 1998; 38:70-3. [PMID: 12549392] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/28/2023]
Abstract
Corynebacterium diphtheria PW8-weissensee was grown on different media for screening high toxin produce. Through six times of screening (selecting butyrous brilliant smooth small colonies and testing their toxin production capacity) from original strain producing toxin 160 Lf/ml, a high toxin--producing descendand culture was obtained, which produced 79% more toxin than the original strain did.
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Rong F, Chui B, Guo S. [Transbronchial needle aspiration under CT guide for enlarged mediastinal lymph node biopsy]. ZHONGHUA ZHONG LIU ZA ZHI [CHINESE JOURNAL OF ONCOLOGY] 1996; 18:458-60. [PMID: 9387303] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
To ascertain the nature of enlarged mediastinal lymph nodes transbronchial needle aspiration (TBNA) was performed under CT guide through bronchoscopy. Forty-five enlarged mediastinal lymph nodes from 33 lung cancer patients were biopsied. The results indicated that 25 enlarged lymph nodes from 20 patients were due to cancer metastasis while 15 enlarged lymph nodes from 8 cases were due to inflammation, and those from the remaining 5 cases were normal. Therefore, about 33.3% of the enlarged mediastinal lymph nodes in lung cancer patients result from noncancerous inflammatory changes. TBNA under CT guide has the advantage of accurate localization, is easy to perform and safe.
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Rong F, Barry WA, Donegan JF, Watkins GD. Direct measurement of exchange as a function of separation for discrete donor-acceptor pairs in ZnSe. PHYSICAL REVIEW. B, CONDENSED MATTER 1988; 37:4329-4332. [PMID: 9945086 DOI: 10.1103/physrevb.37.4329] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/11/2023]
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Rong F, Watkins GD. Optically detected magnetic-resonance observation of the isolated zinc interstitial in irradiated ZnSe. PHYSICAL REVIEW LETTERS 1987; 58:1486-1489. [PMID: 10034449 DOI: 10.1103/physrevlett.58.1486] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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Rong F, Watkins GD. Observation by optically detected magnetic resonance of Frenkel pairs in irradiated ZnSe. PHYSICAL REVIEW LETTERS 1986; 56:2310-2313. [PMID: 10032948 DOI: 10.1103/physrevlett.56.2310] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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Gislason HP, Rong F, Watkins GD. Optically detected magnetic resonance of a localized spin-triplet midgap center in GaAs. PHYSICAL REVIEW. B, CONDENSED MATTER 1985; 32:6945-6948. [PMID: 9936818 DOI: 10.1103/physrevb.32.6945] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/11/2023]
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