1
|
Chen MH, Perelygina L, Hao L, Beard RS, Lackner C, Farcet MR, Karbiener M, Icenogle J, Kreil TR. Neutralization of Rubella Vaccine Virus and Immunodeficiency-Related Vaccine-Derived Rubella Viruses by Intravenous Immunoglobulins. J Infect Dis 2024:jiae182. [PMID: 38592952 DOI: 10.1093/infdis/jiae182] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Revised: 03/27/2024] [Accepted: 04/04/2024] [Indexed: 04/11/2024] Open
Abstract
The association between granulomas and vaccine-derived rubella virus (VDRV) in people with primary immune deficiencies (PID) has raised concerns about the ability of immunoglobulin (IG) preparations to neutralize VDRVs. We investigated the capacity of IG to neutralize rubella vaccine virus and four VDRV strains. As expected, the rubella vaccine virus itself was potently neutralized by IG preparations; however, the VDRV isolates from patients after intra-host evolution, 2-6 times less so. Diagnosis of immune deficiencies before possible live-virus vaccination is thus of critical importance, while IG replacement therapy can be expected to provide protection from rubella virus infection.
Collapse
Affiliation(s)
- Min-Hsin Chen
- Viral Vaccine Preventable Diseases Branch, National Center for Immunization & Respiratory Diseases, Centers for Disease Control & Prevention, GA 30333 Atlanta, USA
| | - Ludmila Perelygina
- Viral Vaccine Preventable Diseases Branch, National Center for Immunization & Respiratory Diseases, Centers for Disease Control & Prevention, GA 30333 Atlanta, USA
| | - LiJuan Hao
- Viral Vaccine Preventable Diseases Branch, National Center for Immunization & Respiratory Diseases, Centers for Disease Control & Prevention, GA 30333 Atlanta, USA
| | - R Suzanne Beard
- Viral Vaccine Preventable Diseases Branch, National Center for Immunization & Respiratory Diseases, Centers for Disease Control & Prevention, GA 30333 Atlanta, USA
| | - Cornelia Lackner
- Global Pathogen Safety, Takeda Manufacturing Austria AG, 1221 Vienna, Austria
| | - Maria R Farcet
- Global Pathogen Safety, Takeda Manufacturing Austria AG, 1221 Vienna, Austria
| | - Michael Karbiener
- Global Pathogen Safety, Takeda Manufacturing Austria AG, 1221 Vienna, Austria
| | - Joseph Icenogle
- Viral Vaccine Preventable Diseases Branch, National Center for Immunization & Respiratory Diseases, Centers for Disease Control & Prevention, GA 30333 Atlanta, USA
| | - Thomas R Kreil
- Global Pathogen Safety, Takeda Manufacturing Austria AG, 1221 Vienna, Austria
| |
Collapse
|
2
|
Cai JH, Chuang CC, Chen MH, Yeh CP, Hsu CY. Differences of bioelectrical impedance in the development and healing phase of pressure ulcers and erythema in mouse model. J Tissue Viability 2024:S0965-206X(24)00025-1. [PMID: 38431432 DOI: 10.1016/j.jtv.2024.02.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Revised: 01/26/2024] [Accepted: 02/24/2024] [Indexed: 03/05/2024]
Abstract
Pressure ulcers (PUs) are economically burdensome medical conditions. Early changes in pressure ulcers are associated with erythema. In this study, bioelectrical impedance was used to measure the differences between PUs and blanchable erythema. We divided 21 ICR mice into three groups: control, 1000 mmHg-1h, and 1000 mmHg-6h. Healthy skin, blanchable erythema, and PUs were induced on the dorsal skin. The results indicated an immediate increase in impedance, resistance, and reactance values in the pressure group after release, followed by a subsequent decrease until two days after release. Compared with the control group, impedance and reactance significantly increased by 30.9% (p < 0.05) and 30.1% (p < 0.01), respectively, in the 6 h-loading group immediately after release. One and two days after release, the 1 h-loading and 6 h-loading groups exhibited significantly different degrees of decline. One day after release, impedance and resistance decreased by 30.2% (p < 0.05) and 19.8% (p < 0.05), respectively, in the 1 h-loading group; while impedance, resistance, and reactance decreased by 39.2% (p < 0.01), 26.8% (p < 0.01), and 45.7% (p < 0.05), respectively, in the 6 h-loading group. Two days after release, in the 1 h-loading group, impedance and resistance decreased by 28.3% (p < 0.05) and 21.7% (p < 0.05), respectively; while in the 6 h-loading group, impedance, resistance, and reactance decreased by 49.8% (p < 0.001), 34.2% (p < 0.001), and 59.8% (p < 0.01), respectively. One and two days after release the pressure group reductions were significantly greater than those in the control group. Additionally, we monitored changes during wound healing. Distinguishing early PUs from blanchable erythema by noninvasive bioelectrical impedance technology may have applications value in early assessment of PUs.
Collapse
Affiliation(s)
- J H Cai
- Department of Biomedical Engineering, Chung Yuan Christian University, Chung Pei Road, Chung Li District, Taoyuan City, Taiwan.
| | - C C Chuang
- Department of Biomedical Engineering, Chung Yuan Christian University, Chung Pei Road, Chung Li District, Taoyuan City, Taiwan.
| | - M H Chen
- Department of Biomedical Engineering, Chung Yuan Christian University, Chung Pei Road, Chung Li District, Taoyuan City, Taiwan.
| | - C P Yeh
- Department of Biomedical Engineering, Chung Yuan Christian University, Chung Pei Road, Chung Li District, Taoyuan City, Taiwan.
| | - C Y Hsu
- Department of Physical Medicine and Rehabilitation, Ten-Chan General Hospital, Yanping Road, Chung Li District, Taoyuan City, Taiwan.
| |
Collapse
|
3
|
Zeng HH, Ma M, Wang YL, Chen MH, Huang DB. Hyperoside attenuates carbon tetrachloride-induced hepatic fibrosis via the poly(ADP-ribose)polymerase-1-high mobility group protein 1 pathway. Eur J Pharmacol 2023; 960:176178. [PMID: 37923159 DOI: 10.1016/j.ejphar.2023.176178] [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] [Subscribe] [Scholar Register] [Received: 08/26/2023] [Revised: 10/29/2023] [Accepted: 11/01/2023] [Indexed: 11/07/2023]
Abstract
Oxidative stress and inflammation have been implicated in hepatic fibrosis. Antioxidant and anti-inflammatory activities are among the pharmacological effects of hyperoside. This study aimed to evaluate the impact of hyperoside on hepatic fibrosis and elucidate the underlying processes that perpetuate this relationship. The findings indicated that hyperoside significantly protects mouse livers against damage, inflammation, and fibrosis. Specifically, attenuation of hepatic fibrosis is associated with lower expression of HMGB1 protein and reduced expression of Toll-like receptor 4, PARP-1, and nuclear factor-kB (NF-κB) p65 mRNA and protein. Furthermore, hyperoside inhibited the cytoplasmic translocation of HMGB1 and nuclear localization of NF-κB p65 in the hepatic tissues of mice. The results of this study indicate that hyperoside may impose a blocking or reversing effect on hepatic fibrosis; additionally, the corresponding hyperoside-dependent mechanism may be linked to PARP-1-HMGB1 pathway regulation.
Collapse
Affiliation(s)
- H H Zeng
- Health Science Center, Hubei Minzu University, Enshi, 445000, China.
| | - M Ma
- Health Science Center, Hubei Minzu University, Enshi, 445000, China.
| | - Y L Wang
- Health Science Center, Hubei Minzu University, Enshi, 445000, China.
| | - M H Chen
- Health Science Center, Hubei Minzu University, Enshi, 445000, China.
| | - D B Huang
- Health Science Center, Hubei Minzu University, Enshi, 445000, China.
| |
Collapse
|
4
|
Chang YH, Shun SC, Chen MH, Chang YF. Feasibility of Different Exercise Modalities for Community-Dwelling Residents With Physical Inactivity: A Randomized Controlled Trial. J Nurs Res 2023; 31:e301. [PMID: 37883059 DOI: 10.1097/jnr.0000000000000578] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2023] Open
Abstract
BACKGROUND Exercise interventions can promote health, but they can be difficult to implement. Moreover, no consensus has been reached regarding which exercise modality promotes the most significant improvement in metabolic health. PURPOSE This feasibility study was conducted to (a) determine the implementation efficacy of supervised and home-based exercise interventions by investigating their respective rates of intervention adherence, adherence to targeted intensity, attrition, and adverse events and (b) explore the preliminary efficacy of 12-week exercise programs among aerobic exercise, aerobic exercise combined with resistance exercise, and high-intensity interval training on body composition, anthropometric parameters, and lipid profiles for community-dwelling residents with physical inactivity. METHODS This randomized controlled trial was conducted from April to October 2020. Seventy-two sedentary participants aged 40-70 years were enrolled and randomized into one of four groups: 12-week aerobic exercise, aerobic exercise combined with resistance exercise, high-intensity interval training, and control. The three exercise groups performed at least moderate-intensity supervised exercise twice a week and home-based exercise once a week, whereas the control group maintained their usual daily activities. The target variables, including body composition, anthropometric parameters, and lipid profiles, were measured before and after the 12-week intervention. RESULTS The intervention adherence rates were 74.01%-87.54% for the supervised exercise group, 64.98%-83.90% for the home-based exercise group, and 82.65%-92.65% for the target exercise intensity group. The attrition rate ranged from 12.50% to 17.65%, and no adverse events were reported in any of the exercise groups. Preliminary efficacy data show the reductions in body weight (95% CI [0.01, 1.20], p = .048) and low-density lipoprotein (95% CI [2.76, 30.32], p = .02) were greater in the exercise groups than the control group, although the intergroup differences were not significant. CONCLUSIONS/IMPLICATIONS FOR PRACTICE Body weight and low-density lipoprotein may be efficiently reduced in a 12-week period using any of the three exercise modalities with at least 82.65% adherence to moderate-intensity exercise and 70.84% adherence to exercising 3 times a week.
Collapse
Affiliation(s)
- Yu-Hsuan Chang
- PhD, RN, Assistant Professor, Department of Nursing, National Tainan Junior College of Nursing, Tainan, Taiwan
| | - Shiow-Ching Shun
- PhD, RN, Professor, Institute of Clinical Nursing, College of Nursing, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Min-Hsin Chen
- MS, Assistant Professor, General Education Center, National Tainan Junior College of Nursing, Tainan, Taiwan; and Doctoral Student, National Taiwan Sport University, Taoyuan, Taiwan
| | - Yin-Fan Chang
- MD, Assistant Professor, Department of Family Medicine, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| |
Collapse
|
5
|
Pei S, Khazaeli M, Hao L, Chen MH, Perelygina L, Kuraitis D. Rubella virus-associated necrotizing neutrophilic granuloma in a patient with common variable immunodeficiency. J Cutan Pathol 2023; 50:971-976. [PMID: 37649267 DOI: 10.1111/cup.14520] [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] [Subscribe] [Scholar Register] [Received: 05/07/2023] [Revised: 08/09/2023] [Accepted: 08/15/2023] [Indexed: 09/01/2023]
Abstract
Patients with inborn errors of immunity (IEI) may develop granulomas in multiple organ systems including the skin. Vaccine strain rubella virus (RuV), part of the live attenuated measles, mumps, and rubella (MMR) vaccine, has been identified within these granulomas. RuV is typically found in macrophages; however, recently neutrophils have been identified as a novel cell type infected. Here, we present a case of RuV-associated cutaneous granuloma with RuV localized to neutrophils. A 46-year-old female with common variable immunodeficiency presented with verrucous papules and crusted plaques from the right knee to the distal shin of 20 years duration, associated with prior physical trauma. Biopsy specimen showed palisaded granulomas surrounding central necrosis with scattered aggregates of neutrophils. Vaccine-derived RuV was detected by molecular sequencing in lesional skin. Fluorescent immunohistochemistry with CD206, myeloperoxidase (MPO), and RV capsid (RVC) antibodies demonstrated that RuV localized to neutrophils but not macrophages. The clinical presentation, cutaneous findings, and likely presence of RVC-positive granulocytes in bone marrow provide potential support to the evolving hypothesis of persistent RuV within neutrophils contributing to chronic granulomatous inflammation in a milieu of immune dysregulation.
Collapse
Affiliation(s)
- Susan Pei
- Department of Dermatology, Roswell Park Comprehensive Cancer Center, Buffalo, New York, USA
| | - Mahyar Khazaeli
- Department of Pathology, University at Buffalo, Buffalo, New York, USA
| | - LiJuan Hao
- Division of Viral Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia, USA
| | - Min-Hsin Chen
- Division of Viral Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia, USA
| | - Ludmila Perelygina
- Division of Viral Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia, USA
| | - Drew Kuraitis
- Department of Dermatology, Roswell Park Comprehensive Cancer Center, Buffalo, New York, USA
- Department of Dermatology, Tulane University, New Orleans, Louisiana, USA
| |
Collapse
|
6
|
Sabbagh A, Trock B, Partin AW, Wu J, Chen MH, Tilki D, DAmico AV, Mohamad O. Machine Learning for the Prediction of Biochemical Recurrence in Patients Treated with Radical Prostatectomy. Int J Radiat Oncol Biol Phys 2023; 117:e484. [PMID: 37785531 DOI: 10.1016/j.ijrobp.2023.06.1710] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) Biochemical recurrence (BCR) occurs in about 40% of patients with prostate cancer following radical prostatectomy (RP). Our goal was to develop a machine learning model for the prediction of BCR five-years after RP, to improve patient prognostication. MATERIALS/METHODS Patients treated with RP at a tertiary care medical center between 1990 and 2017 were included. A gradient boosted decision trees-based machine learning model modified to handle survival data was trained on 80% of the dataset. The model's performance was evaluated on the remaining 20%. Input variables were age at surgery, prostate specific antigen (PSA) at diagnosis (in ng/mL), pathologic Gleason grade group (GG), pathologic T stage (organ confined disease vs. extracapsular extension (ECE) vs. seminal vesicle invasion (SVI)), lymph node involvement, and surgical margin status. Model performance was assessed using time-dependent area under curve of the receiver operator curve (AUC). RESULTS The full dataset included 11,139 patients, of whom 1,153 (10%) developed BCR. Median age at surgery was 59 and PSA at diagnosis was 5.4 ng/mL. Only 1,080 (9.7%) patients had GG 3, and 707 (6.3%) GG 4 and 5. 1,366 (12%) patients had positive surgical margins and 134 (1.2%) had lymph node involvement. Most patients had organ confined disease with EPE and SVI diagnosed in 2,759 (25%) and 392 (3.5%) patients, respectively. Median follow-up was 5 years and median time to BCR was 4 years. When validated on the hold-out set of 2,228 patients, the model shows a time-dependent AUC of 0.82 (95% CI 0.78 - 0.86) for BCR at t = 5 years. CONCLUSION Our machine learning model can be used to estimate risk of BCR following RP and shows exceptional performance, with implications on patient prognostication and follow-up. We are currently working on validating its performance on an external dataset.
Collapse
Affiliation(s)
- A Sabbagh
- University of California San Francisco, San Francisco, CA
| | - B Trock
- Brady Urological Institute at Johns Hopkins Medical Institution, Baltimore, MD
| | - A W Partin
- Brady Urological Institute at Johns Hopkins Medical Institution, Baltimore, MD
| | - J Wu
- University of Rhode Island, Kingston, RI
| | - M H Chen
- University of Connecticut, Storrs, CT
| | - D Tilki
- Martini-Klinik Prostate Cancer Center, University Hospital Hamburg-Eppendorf, Hamburg, Germany
| | - A V DAmico
- Brigham and Women's Hospital, Boston, MA
| | - O Mohamad
- University of California San Francisco, San Francisco, CA
| |
Collapse
|
7
|
Sabbagh A, Tilki D, Partin AW, Trock B, Chen MH, Wu J, DAmico AV, Mohamad O. Machine Learning for the Prediction of Adverse Pathological Outcomes in Patients Treated with Radical Prostatectomy. Int J Radiat Oncol Biol Phys 2023; 117:e484. [PMID: 37785533 DOI: 10.1016/j.ijrobp.2023.06.1709] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) Extracapsular extension (ECE) and seminal vesicle invasion (SVI) are associated with negative oncologic outcomes in patients with prostate cancer. We have developed and validated a machine learning model to more accurately identify patients at risk of these adverse surgical outcomes prior to radical prostatectomy (RP). MATERIALS/METHODS This study included a cohort of patients diagnosed with prostate cancer and treated with RP and lymph node dissection at a tertiary care medical center from 2010 to 2020. An ensemble model using a base gradient-boosted trees-based machine learning model and isotonic calibrators was trained on 80% of the cohort, with 20% held out for validation. The model uses age at surgery, prostate specific antigen level (PSA) at diagnosis, biopsy Gleason grade group, numbers of positive and negative cores on biopsy, and clinical T-stage (cT) as input variables. Model performance was assessed on the hold-out set using the area under the receiver operating curve (AUC). RESULTS The full dataset included 18,729 eligible patients. Median PSA at diagnosis was 7.3 ng/mL. Most patients had clinically organ confined disease (cT1 - cT2) with only 136 (0.7%) having cT3. The most common biopsy Gleason grade group was 2 (7,118 or 38% of patients), with Gleason grade 4 in 1,796 (9.6%), and 5 in 1,064 (5.7%) patients. After RP, 11,931 (64%) of patients had organ confined disease, 4,298 (23%) had ECE, and 2,500 (13%) had SVI. When validated on the hold-out set (n = 3,746), the model had AUCs of 0.79 (95%-CI 0.77 - 0.80), 0.67 (0.65 - 0.69), and 0.83 (0.81 - 0.85) for the prediction of organ confined disease, ECE, and SVI, respectively. CONCLUSION In conclusion, we have developed a machine learning model that predicts individual patient risk of pathologic T-stage. The model can be used to provide more accurate risk assessments and improve surgical treatment planning. We are currently working on externally validating our results on patients from different institutions.
Collapse
Affiliation(s)
- A Sabbagh
- University of California San Francisco, San Francisco, CA
| | - D Tilki
- Martini-Klinik Prostate Cancer Center, University Hospital Hamburg-Eppendorf, Hamburg, Germany
| | - A W Partin
- Brady Urological Institute at Johns Hopkins Medical Institution, Baltimore, MD
| | - B Trock
- Brady Urological Institute at Johns Hopkins Medical Institution, Baltimore, MD
| | - M H Chen
- University of Connecticut, Storrs, CT
| | - J Wu
- University of Rhode Island, Kingston, RI
| | - A V DAmico
- Brigham and Women's Hospital, Boston, MA
| | - O Mohamad
- University of California San Francisco, San Francisco, CA
| |
Collapse
|
8
|
Huang SH, Chi P, Huang Y, Wang XJ, Chen MH, Sun YW, Lin HM, Jiang WZ. [Anatomical classification of and laparoscopic surgery for left-sided colorectal cancer with persistent descending mesocolon]. Zhonghua Wei Chang Wai Ke Za Zhi 2023; 26:668-674. [PMID: 37583024 DOI: 10.3760/cma.j.cn441530-20230109-00011] [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: 08/17/2023]
Abstract
Objective: To investigate anatomical morphology and classification of persistent descending mesocolon (PDM) in patients with left-sided colorectal cancer, as well as the safety of laparoscopic radical surgery for these patients. Methods: This is a descriptive study of case series. Relevant clinical data of 995 patients with left colon and rectal cancer who had undergone radical surgery in Fujian Medical University Union Hospital from July 2021 to September 2022 were extracted from the colorectal surgery database of our institution and retrospectively analyzed. Twenty-four (2.4%) were identified as PDM and their imaging data and intra-operative videos were reviewed. We determined the distribution and morphology of the descending colon and mesocolon, and evaluated the feasibility and complications of laparoscopic surgery. We classified PDM according to its anatomical characteristics as follows: Type 0: PDM combined with malrotation of the midgut or persistent ascending mesocolon; Type 1: unfixed mesocolon at the junction between transverse and descending colon; Type 2: PDM with descending colon shifted medially (Type 2A) or to the right side (Type 2B) of the abdominal aorta at the level of the origin of the inferior mesentery artery (IMA); and Type 3: the mesocolon of the descending-sigmoid junction unfixed and the descending colon shifted medially and caudally to the origin of IMA. Results: The diagnosis of PDM was determined based on preoperative imaging findings in 9 of the 24 patients (37.5%) with left-sided colorectal cancer, while the remaining diagnoses were made during intraoperative assessment. Among 24 patients, 22 were male and 2 were female. The mean age was (63±9) years. We classified PDM as follows: Type 0 accounted for 4.2% (1/24); Type 1 for 8.3% (2/24); Types 2A and 2B for 37.5% (9/24) and 25.0% (6/24), respectively; and Type 3 accounted for 25.0% (6/24). All patients with PDM had adhesions of the mesocolon that required adhesiolysis. Additionally, 20 (83.3%) of them had adhesions between the mesentery of the ileum and colon. Twelve patients (50.0%) required mobilization of the splenic flexure. The inferior mesenteric artery branches had a common trunk in 14 patients (58.3%). Twenty-four patients underwent D3 surgery without conversion to laparotomy; the origin of the IMA being preserved in 22 (91.7%) of them. Proximal colon ischemia occurred intraoperatively in two patients (8.3%) who had undergone high ligation at the origin of the IMA. One of these patients had a juxta-anal low rectal cancer and underwent intersphincteric abdominoperineal resection because of poor preoperative anal function. Laparoscopic subtotal colectomy was considered necessary for the other patient. The duration of surgery was (260±100) minutes and the median estimated blood loss was 50 (20-200) mL. The median number of No. 253 lymph nodes harvested was 3 (0-20), and one patient (4.2%) had No.253 nodal metastases. The median postoperative hospital stay was 8 (4-23) days, and the incidence of complications 16.7% (4/24). There were no instances of postoperative colon ischemia or necrosis observed. One patient (4.2%) with stage IIA rectal cancer developed Grade B (Clavien-Dindo III) anastomotic leak and underwent elective ileostomy. The other complications were Grade I-II. Conclusions: PDM is frequently associated with mesenteric adhesions. Our proposed classification can assist surgeons in identifying the descending colon and mesocolon during adhesion lysis in laparoscopic surgery. It is crucial to protect the colorectal blood supply at the resection margin to minimize the need for unplanned extended colectomy, the Hartmann procedure, or permanent stomas.
Collapse
Affiliation(s)
- S H Huang
- Department of Colorectal Surgery, Fujian Medical University Union Hospital, Fuzhou 350001, China
| | - P Chi
- Department of Colorectal Surgery, Fujian Medical University Union Hospital, Fuzhou 350001, China
| | - Y Huang
- Department of Colorectal Surgery, Fujian Medical University Union Hospital, Fuzhou 350001, China
| | - X J Wang
- Department of Colorectal Surgery, Fujian Medical University Union Hospital, Fuzhou 350001, China
| | - M H Chen
- Department of Radiology, Fujian Medical University Union Hospital, Fuzhou 350001, China
| | - Y W Sun
- Department of Colorectal Surgery, Fujian Medical University Union Hospital, Fuzhou 350001, China
| | - H M Lin
- Department of Colorectal Surgery, Fujian Medical University Union Hospital, Fuzhou 350001, China
| | - W Z Jiang
- Department of Colorectal Surgery, Fujian Medical University Union Hospital, Fuzhou 350001, China
| |
Collapse
|
9
|
Huang K, Li HY, Chen MH, Zhu TT, Zhang XY, Lyu FF, Lin L, Su MS, Dong L. [Analysis of the clinical features and the risk factors of severe human metapneu movirus-associated community acquired pneumonia in children]. Zhonghua Er Ke Za Zhi 2023; 61:322-327. [PMID: 37011977 DOI: 10.3760/cma.j.cn112140-20221231-01079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 04/05/2023]
Abstract
Objective: To investigate the clinical characteristics and the risk factors of severe human metapneumovirus (hMPV)-associated community acquired pneumonia (CAP) in children. Methods: A retrospective case summary was conducted. From December 2020 to March 2022, 721 children who were diagnosed with CAP and tested positive for hMPV nucleic acid by PCR-capillary electrophoresis fragment analysis of nasopharyngeal secretions at the Yuying Children's Hospital, the Second Affiliated Hospital of Wenzhou Medical University were selected as the research objects. The clinical characteristics, epidemiological characteristics and mixed pathogens of the two groups were analyzed. According to CAP diagnostic criteria, the children were divided into the severe group and the mild group. Chi-square test or Mann-Whitney rank and contrast analysis was used for comparison between groups, while multivariate Logistic regression was applied to analyze the risk factors of the severe hMPV-associated CAP. Results: A total of 721 children who were diagnosed with hMPV-associated CAP were included in this study, with 397 males and 324 females. There were 154 cases in the severe group. The age of onset was 1.0 (0.9, 3.0) years, <3 years old 104 cases (67.5%), and the length of hospital stay was 7 (6, 9) days. In the severe group, 67 children (43.5%) were complicated with underlying diseases. In the severe group, 154 cases (100.0%) had cough, 148 cases (96.1%) had shortness of breath and pulmonary moist rales, and 132 cases (85.7%) had fever, 23 cases (14.9%) were complicated with respiratory failure. C-reactive protein (CRP) was elevated in 86 children (55.8%), including CRP≥50 mg/L in 33 children (21.4%). Co-infection was detected in 77 cases (50.0%) and 102 strains of pathogen were detected, 25 strains of rhinovirus, 17 strains of Mycoplasma pneumoniae, 15 strains of Streptococcus pneumoniae, 12 strains of Haemophilus influenzae and 10 strains of respiratory syncytial virus were detected. Six cases (3.9%) received heated and humidified high flow nasal cannula oxygen therapy, 15 cases (9.7%) were admitted to intensive care unit, and 2 cases (1.3%) received mechanical ventilation. In the severe group, 108 children were cured, 42 children were improved, 4 chlidren were discharged automatically without recovery and no death occurred. There were 567 cases in the mild group. The age of onset was 2.7 (1.0, 4.0) years, and the length of hospital stay was 4 (4, 6) days.Compared with the mild group, the proportion of children who age of disease onset <6 months, CRP≥50 mg/L, the proportions of preterm birth, congenital heart disease, malnutrition, congenital airway malformation, neuromuscular disease, mixed respiratory syncytial viruses infection were higher (20 cases (13.0%) vs. 31 cases (5.5%), 32 cases (20.8%) vs. 64 cases (11.3%), 23 cases (14.9%) vs. 44 cases (7.8%), 11 cases (7.1%) vs. 18 cases (3.2%), 9 cases (5.8%) vs. 6 cases (1.1%), 11 cases (7.1%) vs. 12 cases (2.1%), 8 cases (5.2%) vs. 4 cases (0.7%), 10 cases (6.5%) vs. 13 cases (2.3%), χ2=0.42, 9.45, 7.40, 4.94, 11.40, 8.35, 3.52, 6.92, all P<0.05). Multivariate Logistic regression analysis showed that age<6 months (OR=2.51, 95%CI 1.29-4.89), CRP≥50 mg/L (OR=2.20, 95%CI 1.36-3.57), prematurity (OR=2.19, 95%CI 1.26-3.81), malnutrition (OR=6.05, 95%CI 1.89-19.39) were the independent risk factors for severe hMPV-associated CAP. Conclusions: Severe hMPV-associated CAP is most likely to occur in infants under 3 years old and has a higher proportion of underlying diseases and co-infection. The main clinical manifestations are cough, shortness of breath and pulmonary moist rales, fever. The overall prognosis is good. Age<6 months, CRP≥50 mg/L, preterm birth, malnutrition are the independent risk factors for severe hMPV-associated CAP.
Collapse
Affiliation(s)
- K Huang
- Department of Pediatric Respiratory Medicine, the Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou 325027, China
| | - H Y Li
- Department of Pediatric Respiratory Medicine, the Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou 325027, China
| | - M H Chen
- Department of Pediatric Respiratory Medicine, the Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou 325027, China
| | - T T Zhu
- Department of Pediatric Respiratory Medicine, the Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou 325027, China
| | - X Y Zhang
- Department of Pediatric Respiratory Medicine, the Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou 325027, China
| | - F F Lyu
- Department of Pediatric Respiratory Medicine, the Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou 325027, China
| | - L Lin
- Department of Pediatric Respiratory Medicine, the Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou 325027, China
| | - M S Su
- Department of Pediatric Respiratory Medicine, the Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou 325027, China
| | - L Dong
- Department of Pediatric Respiratory Medicine, the Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou 325027, China
| |
Collapse
|
10
|
Tian BS, Wu YJ, Cui XX, Lyu JW, Chen MH, Zhu C, Gu B. [Research progress of CRISPR/Cas biosensors based on different signal amplification strategies]. Zhonghua Yu Fang Yi Xue Za Zhi 2023; 57:112-119. [PMID: 36655267 DOI: 10.3760/cma.j.cn112150-20220220-00158] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
CRISPR/Cas(the clustered regularly interspaced short palindromic repeats-CRISPR associated)system exists in most bacteria and all archaea. It is an important strategy for bacteria and archaea to resist foreign nucleic acid invasion and use for self-defense. The CRISPR/Cas system is a simple, fast, and specific diagnostic tool, which is widely used in agriculture, industry, animal husbandry, and medicine. This article mainly introduces and discusses recently advantages and limitations of biosensors combining CRISPR/Cas system with fluorescence, visualization and surface enhanced raman related technologies, as well as future research directions.
Collapse
Affiliation(s)
- B S Tian
- College of Medical Technology, Xuzhou Medical University, Xuzhou 221004, China Division of Laboratory Medicine, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences,Guangzhou 510080, China
| | - Y J Wu
- School of Medical Imaging, Xuzhou Medical University, Xuzhou 221004, China
| | - X X Cui
- College of Medical Technology, Xuzhou Medical University, Xuzhou 221004, China Division of Laboratory Medicine, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences,Guangzhou 510080, China
| | - J W Lyu
- College of Medical Technology, Xuzhou Medical University, Xuzhou 221004, China Division of Laboratory Medicine, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences,Guangzhou 510080, China
| | - M H Chen
- School of Medical Imaging, Xuzhou Medical University, Xuzhou 221004, China
| | - C Zhu
- Department of Laboratory Medicine, Xuzhou Tumor Hospital, Xuzhou 221005, China
| | - B Gu
- College of Medical Technology, Xuzhou Medical University, Xuzhou 221004, China Division of Laboratory Medicine, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences,Guangzhou 510080, China
| |
Collapse
|
11
|
Abstract
The family Matonaviridae comprises enveloped viruses with positive-sense RNA genomes of 9.6-10 kb. The genus Rubivirus includes rubella virus (species Rubivirus rubellae) infecting humans, ruhugu virus (species Rubivirus ruteetense) infecting bats and rustrela virus (species Rubivirus strelense) infecting rodents and zoo animals. Rubella virus is spread via droplets. Postnatal infection leads to benign disease with rash and fever. Infection of seronegative women with rubella virus during the first trimester of pregnancy will often result in severe foetal malformations, known as congenital rubella syndrome. Vaccines are globally available. This is a summary of the International Committee on Taxonomy of Viruses (ICTV) Report on the family Matonaviridae, which is available at ictv.global/report/matonaviridae.
Collapse
Affiliation(s)
- Annette Mankertz
- Department of Infectious Diseases, Robert Koch-Institute, 13353 Berlin, Germany
| | - Min-Hsin Chen
- Viral Vaccine Preventable Diseases Branch, Centers for Disease Control and Prevention, Atlanta, GA 30333, USA
| | - Tony L Goldberg
- Department of Pathobiological Sciences, University of Wisconsin-Madison, Madison WI 53706, USA
| | - Judith M Hübschen
- Department of Infection and Immunity, Luxembourg Institute of Health, L-4354 Esch-sur-Alzette, Luxembourg
| | - Florian Pfaff
- Institute of Diagnostic Virology, Friedrich-Loeffler-Institute, 17493 Greifswald-Insel Riems, Germany
| | - Rainer G Ulrich
- Institute of Novel and Emerging Infectious Diseases, Friedrich-Loeffler-Institute, 17493 Greifswald-Insel Riems, Germany
| | | |
Collapse
|
12
|
Dollard S, Chen MH, Lindstrom S, Marin M, Rota PA. Diagnostic and Immunologic Testing for Varicella in the Era of High-Impact Varicella Vaccination: An Evolving Problem. J Infect Dis 2022; 226:S450-S455. [PMID: 36265850 DOI: 10.1093/infdis/jiac363] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [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: 01/10/2023] Open
Abstract
The clinical presentation of varicella in unvaccinated persons, with skin vesicles and scabs, has facilitated the use of rapid diagnostic methods for confirming disease. Polymerase chain reaction (PCR) assays are the diagnostic method of choice. The sharp decline in unmodified cases of varicella due to the US varicella vaccination program has led to fewer healthcare providers being familiar with varicella presentation and an increased reliance on laboratory diagnosis to confirm suspected cases. The mild, atypical presentation of the disease in vaccinated persons (fewer skin lesions, mostly maculopapular) has made it more challenging for providers to recognize and also to collect samples to detect the virus. Nonetheless, PCR is highly sensitive and specific in confirming modified disease if adequate samples are provided. While a positive PCR result is confirmatory, interpreting a negative result can prove to be more challenging in determining whether suspected varicella is falsely negative or attributable to other causes. Enhanced education of healthcare providers is critical for adequate specimen collection from modified varicella cases. In addition, more sensitive commercial serologic assays are needed in the United States for varicella immunity testing in the vaccine era.
Collapse
Affiliation(s)
- Sheila Dollard
- Division of Viral Diseases, National Center for Immunization and Respiratory Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia, USA
| | - Min-Hsin Chen
- Division of Viral Diseases, National Center for Immunization and Respiratory Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia, USA
| | - Stephen Lindstrom
- Division of Viral Diseases, National Center for Immunization and Respiratory Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia, USA
| | - Mona Marin
- Division of Viral Diseases, National Center for Immunization and Respiratory Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia, USA
| | - Paul A Rota
- Division of Viral Diseases, National Center for Immunization and Respiratory Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia, USA
| |
Collapse
|
13
|
Chen MH, Abernathy E, Icenogle JP, Perelygina LM. Improved diagnostic and multiplex RT-qPCR for detecting rubella viral RNA. J Virol Methods 2022; 306:114555. [PMID: 35654258 DOI: 10.1016/j.jviromet.2022.114555] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [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] [Received: 04/21/2022] [Revised: 05/19/2022] [Accepted: 05/27/2022] [Indexed: 11/18/2022]
Abstract
An examination of the nucleic acid sequence alignment of 48 full-length rubella virus genomes revealed that the 5' terminus of the genome is more conserved than the commonly used detection windows for rubella virus RNA located in the E1 protein coding region, suggesting that the 5' terminus could be a target for improving detection of all rubella virus genotypes. Two candidate primer sets were tested and the window between nucleotides (nts) 98 and 251 was found to have the greatest analytical sensitivity for detection of different genotypes. The new method had a limit of detection of four copies of rubella RNA per reaction with high specificity. The average coefficient variation of Ct was 2.2%. Concordance between the new method and currently used method, based on testing 251 clinical specimens collected from a rubella outbreak, was 99.4%. The assay was further improved upon by the incorporation of detection of both rubella virus RNA and mRNA from a cellular reference gene in a multiplex format. The multiplex format did not reduce the sensitivity or the reproducibility of rubella RNA detection and, of 60 specimens tested, the concordance between the single target and multiplex assays was 85.0%. To assess the utility of the multiplex assay for molecular surveillance, 62 rubella IgM positive serum samples from a rubella outbreak were tested, and eleven tested positive using the multiplex method while none were positive using the method targeting E1. These results show that the assay based on the new detection window near the 5' terminus of the genome can improve the detection of rubella virus for the purpose of molecular surveillance and case confirmation, with the added benefit of improved efficiency due to multiplexing.
Collapse
Affiliation(s)
- Min-Hsin Chen
- Division of Viral Diseases, Centers for Disease Control and Prevention, Atlanta, GA 30333, USA.
| | - Emily Abernathy
- Division of Viral Diseases, Centers for Disease Control and Prevention, Atlanta, GA 30333, USA
| | - Joseph P Icenogle
- Division of Viral Diseases, Centers for Disease Control and Prevention, Atlanta, GA 30333, USA
| | - Ludmila M Perelygina
- Division of Viral Diseases, Centers for Disease Control and Prevention, Atlanta, GA 30333, USA
| |
Collapse
|
14
|
Yeh C, Chen MH, Chen PH, Lee CL. Lateralization as a symphony: Joint influence of interhemispheric inhibition and transmission on brain asymmetry and syntactic processing. Brain Lang 2022; 228:105095. [PMID: 35248863 DOI: 10.1016/j.bandl.2022.105095] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Revised: 01/16/2022] [Accepted: 02/24/2022] [Indexed: 06/14/2023]
Abstract
This study investigated the roles of cross-hemispheric communications in promoting left-lateralized syntactic processing in the brain. Fifty-six young right-handers without familial sinistrality background underwent a divided visual field ERP grammaticality judgment experiment to assess syntactic processing in each hemisphere. Two behavioral tasks -the bilateral flanker task and bilateral word matching task, were used to assess cross-hemispheric inhibition and transmission. Grand average ERP data showed a significant P600 grammaticality effect in the left hemisphere (LH) only; however, individual variations in the P600 responses were observed in both hemispheres. Results of correlational analyses showed that larger LH P600 effects were associated with slower inter-hemispheric transmissions; smaller right hemisphere (RH) P600 effects were associated with more effective RH inhibition. These results yielded support for both the callosal distance hypothesis and the inhibition hypothesis for language lateralization and demonstrated that different aspects of cross-hemispheric communications jointly influence the degree of syntactic lateralization.
Collapse
Affiliation(s)
- Chih Yeh
- Max Planck School of Cognition, Germany; Graduate Institute of Linguistics, National Taiwan University, Taiwan
| | - Min-Hsin Chen
- Graduate Institute of Linguistics, National Taiwan University, Taiwan
| | - Po-Heng Chen
- Graduate Institute of Linguistics, National Taiwan University, Taiwan
| | - Chia-Lin Lee
- Graduate Institute of Linguistics, National Taiwan University, Taiwan; Department of Psychology, National Taiwan University, Taiwan; Graduate Institute of Brain and Mind Sciences, National Taiwan University, Taiwan; Neurobiology and Cognitive Neuroscience Center, National Taiwan University, Taiwan.
| |
Collapse
|
15
|
Wanat KA, Perelygina L, Chen MH, Hao L, Abernathy E, Bender NR, Shields BE, Wilson BD, Crosby D, Routes J, Samimi SS, Haun PL, Sokumbi O, Icenogle JP, Sullivan KE, Rosenbach M, Drolet BA. Association of Persistent Rubella Virus With Idiopathic Skin Granulomas in Clinically Immunocompetent Adults. JAMA Dermatol 2022; 158:626-633. [PMID: 35338705 DOI: 10.1001/jamadermatol.2022.0828] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Importance Vaccine-derived and wild-type rubella virus (RuV) has been identified within granulomas in patients with inborn errors of immunity, but has not been described in granulomas of healthy adults. Objective To determine the association between RuV and atypical granulomatous inflammation in immune-competent adults. Design, Setting, and Participants This case series, conducted in US academic dermatology clinics from January 2019 to January 2021, investigated the presence of RuV in skin specimens using RuV immunofluorescent staining of paraffin-embedded tissue sections, real-time reverse-transcription polymerase chain reaction, whole-genome sequencing with phylogenetic analyses, and cell culture by the US Centers for Disease Control and Prevention. Rubella immunoglobulin G, immunoglobulin M enzyme-linked immunoassay, and viral neutralization assays were performed for the sera of immunocompetent individuals with treatment refractory cutaneous granulomas and histopathology demonstrating atypical palisaded and necrotizing granulomas. Clinical immune evaluation was performed. Main Outcomes and Measures Identification, genotyping, and culture of vaccine-derived and wild-type RuV within granulomatous dermatitis of otherwise clinically immune competent adults. Results Of the 4 total immunocompetent participants, 3 (75%) were women, and the mean (range) age was 61.5 (49.0-73.0) years. The RuV capsid protein was detected by immunohistochemistry in cutaneous granulomas. The presence of RuV RNA was confirmed by real-time reverse-transcription polymerase chain reaction in fresh-frozen skin biopsies and whole-genome sequencing. Phylogenetic analysis of the RuV sequences showed vaccine-derived RuV in 3 cases and wild-type RuV in 1. Live RuV was recovered from the affected skin in 2 participants. Immunology workup results demonstrated no primary immune deficiencies. Conclusions and Relevance The case series study results suggest that RuV (vaccine derived and wild type) can persist for years in cutaneous granulomas in clinically immunocompetent adults and is associated with atypical (palisaded and necrotizing type) chronic cutaneous granulomas. These findings represent a potential paradigm shift in the evaluation, workup, and management of atypical granulomatous dermatitis and raises questions regarding the potential transmissibility of persistent live RuV.
Collapse
Affiliation(s)
| | | | - Min-Hsin Chen
- US Centers for Disease Control and Prevention, Atlanta, Georgia
| | - LiJuan Hao
- US Centers for Disease Control and Prevention, Atlanta, Georgia
| | - Emily Abernathy
- US Centers for Disease Control and Prevention, Atlanta, Georgia
| | | | - Bridget E Shields
- University of Wisconsin, Madison.,Assistant Section Editor, JAMA Dermatology
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
16
|
Perelygina L, Faisthalab R, Abernathy E, Chen MH, Hao L, Bercovitch L, Bayer DK, Noroski LM, Lam MT, Cicalese MP, Al-Herz W, Nanda A, Hajjar J, Vanden Driessche K, Schroven S, Leysen J, Rosenbach M, Peters P, Raedler J, Albert MH, Abraham RS, Rangarjan HG, Buchbinder D, Kobrynski L, Pham-Huy A, Dhossche J, Cunningham Rundles C, Meyer AK, Theos A, Atkinson TP, Musiek A, Adeli M, Derichs U, Walz C, Krüger R, von Bernuth H, Klein C, Icenogle J, Hauck F, Sullivan KE. Rubella Virus Infected Macrophages and Neutrophils Define Patterns of Granulomatous Inflammation in Inborn and Acquired Errors of Immunity. Front Immunol 2022; 12:796065. [PMID: 35003119 PMCID: PMC8728873 DOI: 10.3389/fimmu.2021.796065] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [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: 10/15/2021] [Accepted: 11/30/2021] [Indexed: 01/08/2023] Open
Abstract
Rubella virus (RuV) has recently been found in association with granulomatous inflammation of the skin and several internal organs in patients with inborn errors of immunity (IEI). The cellular tropism and molecular mechanisms of RuV persistence and pathogenesis in select immunocompromised hosts are not clear. We provide clinical, immunological, virological, and histological data on a cohort of 28 patients with a broad spectrum of IEI and RuV-associated granulomas in skin and nine extracutaneous tissues to further delineate this relationship. Combined immunodeficiency was the most frequent diagnosis (67.8%) among patients. Patients with previously undocumented conditions, i.e., humoral immunodeficiencies, a secondary immunodeficiency, and a defect of innate immunity were identified as being susceptible to RuV-associated granulomas. Hematopoietic cell transplantation was the most successful treatment in this case series resulting in granuloma resolution; steroids, and TNF-α and IL-1R inhibitors were moderately effective. In addition to M2 macrophages, neutrophils were identified by immunohistochemical analysis as a novel cell type infected with RuV. Four patterns of RuV-associated granulomatous inflammation were classified based on the structural organization of granulomas and identity and location of cell types harboring RuV antigen. Identification of conditions that increase susceptibility to RuV-associated granulomas combined with structural characterization of the granulomas may lead to a better understanding of the pathogenesis of RuV-associated granulomas and discover new targets for therapeutic interventions.
Collapse
Affiliation(s)
- Ludmila Perelygina
- Centers for Disease Control and Prevention, Division of Viral Diseases, Atlanta, GA, United States
| | - Raeesa Faisthalab
- Centers for Disease Control and Prevention, Division of Viral Diseases, Atlanta, GA, United States
| | - Emily Abernathy
- Centers for Disease Control and Prevention, Division of Viral Diseases, Atlanta, GA, United States
| | - Min-Hsin Chen
- Centers for Disease Control and Prevention, Division of Viral Diseases, Atlanta, GA, United States
| | - LiJuan Hao
- Centers for Disease Control and Prevention, Division of Viral Diseases, Atlanta, GA, United States
| | - Lionel Bercovitch
- Department of Dermatology, Hasbro Children's Hospital and Warren Alpert Medical School of Brown University, Providence, RI, United States
| | - Diana K Bayer
- Department of Pediatrics, University of Iowa Stead Family Children's Hospital, Iowa City, IA, United States
| | - Lenora M Noroski
- Department of Pediatrics, Texas Children's Hospital, Baylor College of Medicine, Houston, TX, United States
| | - Michael T Lam
- Department of Pediatrics, Texas Children's Hospital, Baylor College of Medicine, Houston, TX, United States
| | - Maria Pia Cicalese
- Pediatric Immunohematology and Bone Marrow Transplantation Unit and San Raffaele Telethon Institute for Gene Therapy (SR-TIGET), Istituto di Ricovero e Cura a Carattere Scientifico (National Institute for Research and Treatment) (IRCCS) San Raffaele Scientific Institute, Milan, Italy
| | - Waleed Al-Herz
- Department of Pediatrics, Kuwait University, Kuwait City, Kuwait.,Allergy and Clinical Immunology Unit, Department of Pediatrics, Al-Sabah Hospital, Kuwait City, Kuwait
| | - Arti Nanda
- Pediatric Dermatology Unit, As'ad Al-Hamad Dermatology Center, Al-sabah Hospital, Kuwait City, Kuwait
| | - Joud Hajjar
- Department of Pediatrics, Texas Children's Hospital, Baylor College of Medicine, Houston, TX, United States
| | - Koen Vanden Driessche
- Department of Pediatrics, Queen Mathilde Mother and Child Centre, Antwerp University Hospital, Antwerp, Belgium
| | - Shari Schroven
- Department of Pediatrics, Queen Mathilde Mother and Child Centre, Antwerp University Hospital, Antwerp, Belgium
| | - Julie Leysen
- Department of Dermatology, Queen Mathilde Mother and Child Centre, Antwerp University Hospital, Antwerp, Belgium
| | - Misha Rosenbach
- Department of Dermatology, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, United States
| | - Philipp Peters
- Department of Pediatrics, Dr. von Hauner Children's Hospital, University Hospital, Ludwig-Maximilians-Universität München, Munich, Germany
| | - Johannes Raedler
- Department of Pediatrics, Dr. von Hauner Children's Hospital, University Hospital, Ludwig-Maximilians-Universität München, Munich, Germany
| | - Michael H Albert
- Department of Pediatrics, Dr. von Hauner Children's Hospital, University Hospital, Ludwig-Maximilians-Universität München, Munich, Germany
| | - Roshini S Abraham
- Department of Pathology and Laboratory Medicine, Nationwide Children's Hospital, Columbus, OH, United States
| | - Hemalatha G Rangarjan
- Department of Hematology, Oncology, Blood and Marrow Transplant, Nationwide Children's Hospital, Columbus, OH, United States
| | - David Buchbinder
- Department of Hematology, Children's Hospital of Orange County, Orange, CA, United States.,Department of Pediatrics, University of California at Irvine, Orange, CA, United States
| | - Lisa Kobrynski
- Allergy/Immunology Section, Emory University, Atlanta, GA, United States
| | - Anne Pham-Huy
- Department of Pediatrics, University of Ottawa and Children's Hospital of Eastern Ontario, Ottawa, ON, Canada
| | - Julie Dhossche
- Department of Dermatology, Oregon Health and Science University, Portland, OR, United States
| | - Charlotte Cunningham Rundles
- Division of Clinical Immunology, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, United States
| | - Anna K Meyer
- Department of Pediatrics, National Jewish Health, Denver, CO, United States
| | - Amy Theos
- Department of Dermatology, University of Alabama at Birmingham, Birmingham, AL, United States
| | - T Prescott Atkinson
- Department of Pediatrics, University of Alabama at Birmingham, Birmingham, AL, United States
| | - Amy Musiek
- Division of Dermatology, Washington University School of Medicine, St. Louis, MO, United States
| | - Mehdi Adeli
- Division of Immunology and Allergy, Sidra Medicine and Hamad Medical Corporation, Doha, Qatar
| | - Ute Derichs
- Center for Pediatric and Adolescent Medicine, University Medical Hospital Mainz, Mainz, Germany
| | - Christoph Walz
- Institute of Pathology, Faculty of Medicine, Ludwig-Maximilians-Universität München, Munich, Germany
| | - Renate Krüger
- Department of Pediatric Respiratory Medicine, Immunology and Critical Care Medicine, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Horst von Bernuth
- Department of Pediatric Respiratory Medicine, Immunology and Critical Care Medicine, Charité - Universitätsmedizin Berlin, Berlin, Germany.,Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health (BIH), Berlin-Brandenburg Center for Regenerative Therapies (BCRT), Berlin, Germany.,Berlin Institute of Health at Charité - Universitätsmedizin Berlin, Berlin, Germany.,Labor Berlin GmbH, Department of Immunology, Berlin, Germany
| | - Christoph Klein
- Department of Pediatrics, Dr. von Hauner Children's Hospital, University Hospital, Ludwig-Maximilians-Universität München, Munich, Germany
| | - Joseph Icenogle
- Centers for Disease Control and Prevention, Division of Viral Diseases, Atlanta, GA, United States
| | - Fabian Hauck
- Department of Pediatrics, Dr. von Hauner Children's Hospital, University Hospital, Ludwig-Maximilians-Universität München, Munich, Germany
| | - Kathleen E Sullivan
- Division of Allergy Immunology, Department of Pediatrics, The Children's Hospital of Philadelphia, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, United States
| |
Collapse
|
17
|
Shields BE, Perelygina L, Samimi S, Haun P, Leung T, Abernathy E, Chen MH, Hao L, Icenogle J, Drolet B, Wilson B, Bryer JS, England R, Blumberg E, Wanat KA, Sullivan K, Rosenbach M. Granulomatous Dermatitis Associated With Rubella Virus Infection in an Adult With Immunodeficiency. JAMA Dermatol 2021; 157:842-847. [PMID: 34037685 DOI: 10.1001/jamadermatol.2021.1577] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Importance Immunodeficiency-related, vaccine-derived rubella virus (RuV) as an antigenic trigger of cutaneous and visceral granulomas is a rare, recently described phenomenon in children and young adults treated with immunosuppressant agents. Objective To perform a comprehensive clinical, histologic, immunologic, molecular, and genomic evaluation to elucidate the potential cause of an adult patient's atypical cutaneous granulomas. Design, Setting, and Participants A prospective evaluation of skin biopsies, nasopharyngeal swabs, and serum samples submitted to the Centers for Disease Control and Prevention was conducted to assess for RuV using real-time reverse-transcriptase polymerase chain reaction (RT-PCR) and viral genomic sequencing. The samples were obtained from a man in his 70s with extensive cutaneous granulomas mimicking both cutaneous sarcoidosis (clinically) and CD8+ granulomatous cutaneous T-cell lymphoma (histopathologically). The study was conducted from September 2019 to February 2021. Main Outcomes and Measures Identification and genotyping of a novel immunodeficiency-related RuV-associated granulomatous dermatitis. Results Immunohistochemistry for RuV capsid protein and RT-PCR testing for RuV RNA revealed RuV in 4 discrete skin biopsies from different body sites. In addition, RuV RNA was detected in the patient's nasopharyngeal swabs by RT-PCR. The full viral genome was sequenced from the patient's skin biopsy (RVs/Philadelphia.PA.USA/46.19/GR, GenBank Accession #MT249313). The patient was ultimately diagnosed with a novel RuV-associated granulomatous dermatitis. Conclusions and Relevance The findings of this study suggest that clinicians and pathologists may consider RuV-associated granulomatous dermatitis during evaluation of a patient because it might have implications for the diagnosis of cutaneous sarcoidosis, with RuV serving as a potential antigenic trigger, and for the diagnosis of granulomatous cutaneous T-cell lymphoma, with histopathologic features that may prompt an evaluation for immunodeficiency and/or RuV.
Collapse
Affiliation(s)
- Bridget E Shields
- Department of Dermatology, University of Wisconsin School of Medicine and Public Health, Madison.,Assistant Section Editor, JAMA Dermatology
| | - Ludmila Perelygina
- Centers for Disease Control and Prevention, Division of Viral Diseases, Atlanta, Georgia
| | - Sara Samimi
- Department of Dermatology, University of Pennsylvania Perelman School of Medicine, Philadelphia
| | - Paul Haun
- Department of Dermatology, University of Pennsylvania Perelman School of Medicine, Philadelphia
| | - Thomas Leung
- Department of Dermatology, University of Pennsylvania Perelman School of Medicine, Philadelphia
| | - Emily Abernathy
- Centers for Disease Control and Prevention, Division of Viral Diseases, Atlanta, Georgia
| | - Min-Hsin Chen
- Centers for Disease Control and Prevention, Division of Viral Diseases, Atlanta, Georgia
| | - LiJuan Hao
- Centers for Disease Control and Prevention, Division of Viral Diseases, Atlanta, Georgia
| | - Joseph Icenogle
- Centers for Disease Control and Prevention, Division of Viral Diseases, Atlanta, Georgia
| | - Beth Drolet
- Department of Dermatology, University of Wisconsin School of Medicine and Public Health, Madison
| | - Barbara Wilson
- Department of Dermatology, Medical College of Wisconsin, Milwaukee
| | - Joshua S Bryer
- Department of Dermatology, University of Pennsylvania Perelman School of Medicine, Philadelphia
| | - Ross England
- Division of Infectious Diseases, University of Pennsylvania Perelman School of Medicine, Philadelphia
| | - Emily Blumberg
- Division of Infectious Diseases, University of Pennsylvania Perelman School of Medicine, Philadelphia
| | - Karolyn A Wanat
- Department of Dermatology, Medical College of Wisconsin, Milwaukee.,Section Editor, JAMA Dermatology
| | - Kathleen Sullivan
- Division of Allergy and Immunology, Department of Pediatrics, The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania.,Division of Allergy and Immunology, University of Pennsylvania Perelman School of Medicine, Philadelphia
| | - Misha Rosenbach
- Department of Dermatology, University of Pennsylvania Perelman School of Medicine, Philadelphia
| |
Collapse
|
18
|
Sun ZL, Chen MH, Guo YN, Liu ZQ. LncRNA XIST is elevated in patients with chronic heart failure and has a regulatory role in cardiomyocyte function. J BIOL REG HOMEOS AG 2021; 35:677-682. [PMID: 33792216 DOI: 10.23812/20-731-l] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Z L Sun
- Second Department of Cardiology, Changle People's Hospital, Shandong, China
| | - M H Chen
- Second Department of Cardiology, Changle People's Hospital, Shandong, China
| | - Y N Guo
- First Department of Cardiology, Changle People's Hospital, Shandong, China
| | - Z Q Liu
- Second Department of Cardiology, Changle People's Hospital, Shandong, China
| |
Collapse
|
19
|
Peng X, Qu MJ, Wang SJ, Huang YX, Chen C, Chen MH. Chemosensory proteins participate in insecticide susceptibility in Rhopalosiphum padi, a serious pest on wheat crops. Insect Mol Biol 2021; 30:138-151. [PMID: 33188557 DOI: 10.1111/imb.12683] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Revised: 10/27/2020] [Accepted: 11/06/2020] [Indexed: 06/11/2023]
Abstract
Rhopalosiphum padi is a worldwide agricultural pest. Chemosensory proteins (CSPs) are considered to be a type of transporters which can bind chemicals from external environments. Previous research showed that the expression of some insect CSPs were significantly increased after exposure to insecticides, and CSPs were involved in insecticide resistance or susceptibility. However, the role of CSPs in the susceptibility and response of R. padi to insecticides is still unknown. In this study, we identified eight CSP (RpCSP) from R. padi by genome-wide investigation. Seven RpCSP genes had two exons, while RpCSP7 had three exons. qPCR analyses showed that the mRNA levels of the eight RpCSP genes were significantly affected by imidacloprid and beta-cypermethrin in different post-treatment periods. Molecular docking predicted that there were hydrogen bonding sites which played key roles in binding of RpCSP4, RpCSP5, RpCSP6, RpCSP7 and RpCSP10 with imidacloprid and beta-cypermethrin. Knockdown of RpCSP4, RpCSP5, RpCSP6 and RpCSP10 by RNA interference significantly increased the aphid mortality under two sublethal concentrations of imidacloprid. Mortalities under two sublethal concentrations of beta-cypermethrin conditions were significantly higher after injection of R. padi with dsCSP4 and dsCSP6. The results indicate that some RpCSP genes are involved in the insecticide susceptibility of R. padi.
Collapse
Affiliation(s)
- X Peng
- Northwest A&F University, State Key Laboratory of Crop Stress Biology for Arid Areas, Key Laboratory of Crop Pest Integrated Pest Management on the Loess Plateau of Ministry of Agriculture and Rural Affairs, Northwest A&F University, Yangling, China
| | - M J Qu
- Shandong Academy of Agricultural Sciences, Shandong Peanut Research Institute, Qingdao, China
| | - S J Wang
- Northwest A&F University, State Key Laboratory of Crop Stress Biology for Arid Areas, Key Laboratory of Crop Pest Integrated Pest Management on the Loess Plateau of Ministry of Agriculture and Rural Affairs, Northwest A&F University, Yangling, China
| | - Y X Huang
- Northwest A&F University, State Key Laboratory of Crop Stress Biology for Arid Areas, Key Laboratory of Crop Pest Integrated Pest Management on the Loess Plateau of Ministry of Agriculture and Rural Affairs, Northwest A&F University, Yangling, China
| | - C Chen
- Northwest A&F University, State Key Laboratory of Crop Stress Biology for Arid Areas, Key Laboratory of Crop Pest Integrated Pest Management on the Loess Plateau of Ministry of Agriculture and Rural Affairs, Northwest A&F University, Yangling, China
| | - M H Chen
- Northwest A&F University, State Key Laboratory of Crop Stress Biology for Arid Areas, Key Laboratory of Crop Pest Integrated Pest Management on the Loess Plateau of Ministry of Agriculture and Rural Affairs, Northwest A&F University, Yangling, China
| |
Collapse
|
20
|
Abstract
This study aimed to detect the expression of Wnt-induced secreted protein-1 (WISP-1) in renal fibrosis (RF) and to clarify the underlying mechanism. An in vivo mousee model of unilateral ureteral obstruction (UUO) and in vitro model of fibrosis on renal tubular epithelial NRK52E cells after transforming growth factor-β1 (TGF-β1) stimulation were used. Quantitative real-time PCR (qRT-PCR), Western blot (WB), and immunohistochemistry were used to detect WISP-1 and fibrosis markers, including the expression of fibronectin (FN), collagen I (Col I), collagen IV (Col IV), and α-smooth muscle actin (α-SMA). In vitro experiments showed that the expression of WISP-1 and fibrosis markers FN, Col I, Col IV, and α-SMA in rat renal tubular epithelial cells were significantly higher than that in the control group after 48 h of TGF-β1 stimulation. In vivo experiments showed that the expressions of WISP-1 and fibrosis markers FN, Col I, Col IV, and α-SMA in the obstructed kidney of UUO animal models were significantly increased in mRNA and protein levels compared to normal mice. This study showed that WISP-1 may be an essential cytokine that promotes renal fibrosis, being involved in the development of renal fibrosis.
Collapse
Affiliation(s)
- Y Zhou
- Department of Nephrology, General Hospital of Ningxia Medical University, Yinchuan, China
| | - P Chai
- Department of Ultrasonic, General Hospital of Ningxia Medical University, Yinchuan, China
| | - J Wang
- Department of Nephrology, General Hospital of Ningxia Medical University, Yinchuan, China
| | - L Li
- Department of Nephrology, General Hospital of Ningxia Medical University, Yinchuan, China
| | - M H Chen
- Department of Nephrology, General Hospital of Ningxia Medical University, Yinchuan, China
| |
Collapse
|
21
|
Wylie GR, Yao B, Genova HM, Chen MH, DeLuca J. Using functional connectivity changes associated with cognitive fatigue to delineate a fatigue network. Sci Rep 2020; 10:21927. [PMID: 33318529 PMCID: PMC7736266 DOI: 10.1038/s41598-020-78768-3] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Accepted: 11/24/2020] [Indexed: 12/22/2022] Open
Abstract
Cognitive fatigue, or fatigue related to mental work, is a common experience. A growing body of work using functional neuroimaging has identified several regions that appear to be related to cognitive fatigue and that potentially comprise a "fatigue network". These include the striatum of the basal ganglia, the dorsolateral prefrontal cortex (DLPFC), the dorsal anterior cingulate cortex (dACC), the ventro-medial prefrontal cortex (vmPFC) and the anterior insula. However, no work has been conducted to assess whether the connectivity between these regions changes as a function of cognitive fatigue. We used a task-based functional neuroimaging paradigm to induce fatigue in 39 healthy individuals, regressed the signal associated with the task out of the data, and investigated how the functional connectivity between these regions changed as cognitive fatigue increased. We observed functional connectivity between these regions and other frontal regions largely decreased as cognitive fatigue increased while connectivity between these seeds and more posterior regions increased. Furthermore the striatum, the DLPFC, the insula and the vmPFC appeared to be central 'nodes' or hubs of the fatigue network. These findings represent the first demonstration that the functional connectivity between these areas changes as a function of cognitive fatigue.
Collapse
Affiliation(s)
- G R Wylie
- Kessler Foundation, Rocco Ortenzio Neuroimaging Center, 1199 Pleasant Valley Way, West Orange, NJ, 07052, USA.
- Department of Physical Medicine and Rehabilitation, Rutgers University, New Jersey Medical School, Newark, NJ, 07101, USA.
- The Department of Veterans' Affairs, The War Related Illness and Injury Center, New Jersey Healthcare System, East Orange Campus, East Orange, NJ, 07018, USA.
| | - B Yao
- Kessler Foundation, Rocco Ortenzio Neuroimaging Center, 1199 Pleasant Valley Way, West Orange, NJ, 07052, USA
- Department of Physical Medicine and Rehabilitation, Rutgers University, New Jersey Medical School, Newark, NJ, 07101, USA
| | - H M Genova
- Kessler Foundation, Rocco Ortenzio Neuroimaging Center, 1199 Pleasant Valley Way, West Orange, NJ, 07052, USA
- Department of Physical Medicine and Rehabilitation, Rutgers University, New Jersey Medical School, Newark, NJ, 07101, USA
| | - M H Chen
- Kessler Foundation, Rocco Ortenzio Neuroimaging Center, 1199 Pleasant Valley Way, West Orange, NJ, 07052, USA
- Department of Physical Medicine and Rehabilitation, Rutgers University, New Jersey Medical School, Newark, NJ, 07101, USA
| | - J DeLuca
- Kessler Foundation, Rocco Ortenzio Neuroimaging Center, 1199 Pleasant Valley Way, West Orange, NJ, 07052, USA
- Department of Physical Medicine and Rehabilitation, Rutgers University, New Jersey Medical School, Newark, NJ, 07101, USA
- Department of Neurology, Rutgers University, New Jersey Medical School, Newark, NJ, 07101, USA
| |
Collapse
|
22
|
Crooke SN, Riggenbach MM, Ovsyannikova IG, Warner ND, Chen MH, Hao L, Icenogle JP, Poland GA, Kennedy RB. Durability of humoral immune responses to rubella following MMR vaccination. Vaccine 2020; 38:8185-8193. [PMID: 33190948 DOI: 10.1016/j.vaccine.2020.10.076] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Revised: 10/20/2020] [Accepted: 10/23/2020] [Indexed: 10/23/2022]
Abstract
BACKGROUND While administration of the measles-mumps-rubella (MMR-II®) vaccine has been effective at preventing rubella infection in the United States, the durability of humoral immunity to the rubella component of MMR vaccine has not been widely studied among older adolescents and adults. METHODS In this longitudinal study, we sought to assess the durability of rubella virus (RV)-specific humoral immunity in a healthy population (n = 98) of adolescents and young adults at two timepoints: ~7 and ~17 years after two doses of MMR-II® vaccination. Levels of circulating antibodies specific to RV were measured by ELISA and an immune-colorimetric neutralization assay. RV-specific memory B cell responses were also measured by ELISpot. RESULTS Rubella-specific IgG antibody titers, neutralizing antibody titers, and memory B cell responses declined with increasing time since vaccination; however, these decreases were relatively moderate. Memory B cell responses exhibited a greater decline in men compared to women. CONCLUSIONS Collectively, rubella-specific humoral immunity declines following vaccination, although subjects' antibody titers remain well above the currently recognized threshold for protective immunity. Clinical correlates of protection based on neutralizing antibody titer and memory B cell ELISpot response should be defined.
Collapse
Affiliation(s)
- Stephen N Crooke
- Mayo Clinic Vaccine Research Group, Mayo Clinic, Rochester, MN, USA
| | | | | | - Nathaniel D Warner
- Division of Biomedical Statistics and Informatics, Mayo Clinic, Rochester, MN, USA
| | - Min-Hsin Chen
- Division of Viral Diseases, National Center for Immunization and Respiratory Diseases, Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - Lijuan Hao
- Division of Viral Diseases, National Center for Immunization and Respiratory Diseases, Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - Joseph P Icenogle
- Division of Viral Diseases, National Center for Immunization and Respiratory Diseases, Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - Gregory A Poland
- Mayo Clinic Vaccine Research Group, Mayo Clinic, Rochester, MN, USA
| | - Richard B Kennedy
- Mayo Clinic Vaccine Research Group, Mayo Clinic, Rochester, MN, USA.
| |
Collapse
|
23
|
Xu S, Zu XM, Feng R, Zhang SH, Qiu Y, Chen BL, Zeng ZR, Chen MH, He Y. [Thalidomide in refractory Crohn's disease: long-term efficacy and safety]. Zhonghua Nei Ke Za Zhi 2020; 59:445-450. [PMID: 32486585 DOI: 10.3760/cma.j.cn112138-20191206-00800] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Objective: To analyze the long-term efficacy and safety of thalidomide on refractory Crohn's disease (CD). Methods: A total of 79 patients with refractory CD in the First Affiliated Hospital of Sun Yat-sen University treated with thalidomide were enrolled in this retrospective study from September 2005 to July 2018. Clinical effects and adverse drug reactions were recorded and assessed. Results: In this cohort,69 patients were treated with thalidomide for ≥6 months. Sixty-eight patients among the 69 patients achieved complete clinical remission and were followed up for a median 33.5 months (range, 7-110 months). Seventeen cases relapsed during follow-up. The cumulative probabilities of remaining in remission at 12, 24, 60 months were 88.6% (95%CI 80.6%-96.6%), 80.7% (95%CI 70.3%-91.1%), 53.7% (95%CI 32.1%-75.3%) respectively. Disease activity was the only variable associated with relapse risk, with a hazard ratio (HR) of 3.559 for Crohn's disease activity index (CDAI) ≥220(95%CI 1.213-10.449, P<0.05). Adverse reactions were recorded in 42 (53.2%) patients including12 (15.2%) leading to discontinuation of thalidomide. No serious side effects were observed in all subjects. Conclusions: This study suggests a long-term benefit of maintenance treatment with thalidomide in refractory CD.Moderate to severe patients have an increased risk of relapse. The high incidence of drug adverse reactions may restrain the clinical application of thalidomide.
Collapse
Affiliation(s)
- S Xu
- Department of Gastroenterology, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China
| | - X M Zu
- Department of Gastroenterology, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China
| | - R Feng
- Department of Gastroenterology, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China
| | - S H Zhang
- Department of Gastroenterology, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China
| | - Y Qiu
- Department of Gastroenterology, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China
| | - B L Chen
- Department of Gastroenterology, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China
| | - Z R Zeng
- Department of Gastroenterology, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China
| | - M H Chen
- Department of Gastroenterology, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China
| | - Y He
- Department of Gastroenterology, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China
| |
Collapse
|
24
|
Hsieh YC, Lin WC, Chuang WY, Chen MH, Chang SC, Lee TT. Effects of mushroom waster medium and stalk residues on the growth performance and oxidative status in broilers. Anim Biosci 2020; 34:265-275. [PMID: 32138471 PMCID: PMC7876722 DOI: 10.5713/ajas.19.0889] [Citation(s) in RCA: 4] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2019] [Accepted: 02/21/2020] [Indexed: 11/27/2022] Open
Abstract
OBJECTIVE The study developed mushroom stalk residues as feed additives in the broiler diet for improving the growth performance and immunity of broilers as well as to increase the value of mushroom stalk residues. METHODS In total, 300 ROSS 308 broilers were randomly allocated into fifteen pens with five dietary treatments: i) control, basal diet; ii) CMWM, supplemented with 1% Cordyceps militaris waster medium (CM); iii) CMPE, supplemented with 0.5% CM+0.5% Pleurotus eryngii stalk residue (PE); iv) CMPS, supplemented with 0.5% CM+0.5% Pleurotus sajorcaju stalk residue (PS); v) CMFV, supplemented with 0.5% CM+0.5% Fammulina velutipes stalk residue (FV). RESULTS The chemical analysis results showed that CM extracts, PE extracts, PS extracts, and FV extracts contain functional components such as polysaccharides and phenols and have both 2, 2-diphenyl-1-picryl-hydrazyl-hydrate scavenging and Ferrous scavenging capacities. The group CMWM saw increased body weight gain and feed conversion rate and the promotion of jejunum villus growth, but there is no significant difference in the intestinal bacteria phase. Antioxidant genes in the nuclear factor (erythroid-derived 2)-like 2 (Nrf2)- antioxidant responsive element pathway among the groups are significantly higher than that of the control group, especially in group CMWM. CONCLUSION The mushroom stalk residues have antioxidant functional components, can improve the intestinal health and body weight gain of chickens, and can activate the antioxidant pathway of Nrf2 to increase the heme oxygenase-1 expression. The treatment with 1% CM was the most promising as a feed additive.
Collapse
Affiliation(s)
- Y C Hsieh
- Department of Animal Science, National Chung Hsing University, Taichung, 402, Taiwan
| | - W C Lin
- Department of Animal Science, National Chung Hsing University, Taichung, 402, Taiwan
| | - W Y Chuang
- Department of Animal Science, National Chung Hsing University, Taichung, 402, Taiwan
| | - M H Chen
- Taiwan Agricultural Research Institute, Council of Agriculture, Executive Yuan, Taichung City, 41362, Taiwan
| | - S C Chang
- Kaohsiung Animal Propagation Station, Livestock Research Institute, Council of Agriculture, Executive Yuan, Pingtung, 91201, Taiwan
| | - T T Lee
- Department of Animal Science, National Chung Hsing University, Taichung, 402, Taiwan.,The iEGG and Animal Biotechnology Center, National Chung Hsing University, Taichung, 402, Taiwan
| |
Collapse
|
25
|
Haralambieva IH, Ovsyannikova IG, Kennedy RB, Goergen KM, Grill DE, Chen MH, Hao L, Icenogle J, Poland GA. Rubella virus-specific humoral immune responses and their interrelationships before and after a third dose of measles-mumps-rubella vaccine in women of childbearing age. Vaccine 2019; 38:1249-1257. [PMID: 31732325 DOI: 10.1016/j.vaccine.2019.11.004] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2019] [Revised: 10/29/2019] [Accepted: 11/04/2019] [Indexed: 01/06/2023]
Abstract
In the U.S., measles, mumps, and rubella vaccination is recommended as two vaccine doses. A third dose of measles-mumps-rubella (MMR) vaccine is being administered in certain situations (e.g., identified seronegativity and during outbreaks). We studied rubella-specific humoral immunity (neutralizing antibody, enzyme-linked immunosorbent assay/ELISA IgG titer and antibody avidity) and the frequencies of antigen-specific memory B cells before and after a third dose of MMR-II in 109 female participants of childbearing age (median age, 34.5 years old) from Olmsted County, MN, with two documented prior MMR vaccine doses. The participants were selected from a cohort of 1117 individuals if they represented the high and the low ends of the rubella-specific antibody response spectrum. Of the 109 participants, we identified four individuals (3.67% of all study participants; 7.14% of the low-responder group) that were seronegative at Baseline (rubella-specific ELISA IgG titers <10 IU/mL), suggesting a lack of protection against rubella before receipt of a third MMR vaccine dose. The peak geometric mean neutralizing antibody titer one month following the third dose of MMR vaccine for the cohort was 243 NT50 (CI; 241, 245), which is expected for a cohort with two doses of MMR, and the peak geometric mean IgG titer was 150 IU/mL (CI; 148, 152) with no seronegative individuals at Day 28. One-third of all subjects (31.8% for the neutralizing antibody; 30.8% for the IgG titer) experienced a significant boost (≥4-fold) of antibody titers one month following vaccination. Antibody titers and other tested immune-response variables were significantly higher in the high-responder group compared to the low-responder group. The frequencies of rubella-specific memory B cells were modestly associated with the antibody titers. Our study suggests the importance of yet unknown inherent biologic and immune factors for the generation and maintenance of rubella-vaccine-induced humoral immune responses.
Collapse
Affiliation(s)
| | | | - Richard B Kennedy
- Mayo Clinic Vaccine Research Group, Mayo Clinic, Rochester, MN 55905, USA
| | - Krista M Goergen
- Department of Health Sciences Research, Mayo Clinic, Rochester, MN 55905, USA
| | - Diane E Grill
- Department of Health Sciences Research, Mayo Clinic, Rochester, MN 55905, USA
| | - Min-Hsin Chen
- National Center for Immunization and Respiratory Diseases, Centers for Disease Control and Prevention, Atlanta 30333, Georgia
| | - Lijuan Hao
- National Center for Immunization and Respiratory Diseases, Centers for Disease Control and Prevention, Atlanta 30333, Georgia
| | - Joseph Icenogle
- National Center for Immunization and Respiratory Diseases, Centers for Disease Control and Prevention, Atlanta 30333, Georgia
| | - Gregory A Poland
- Mayo Clinic Vaccine Research Group, Mayo Clinic, Rochester, MN 55905, USA.
| |
Collapse
|
26
|
Chen XF, Chen MH, Wang LM. [Periodontal bone grafting for the treatment of mandibular anterior teeth with horizontal bone resorption: a case report]. Zhonghua Kou Qiang Yi Xue Za Zhi 2019; 54:487-491. [PMID: 31288330 DOI: 10.3760/cma.j.issn.1002-0098.2019.07.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- X F Chen
- Department of Periodontology, Shanghai Stomatological Hospital, Fudan University & Oral Biomedical Engineering Laboratory, Shanghai Stomatological Hospital, Fudan University, Shanghai 200001, China
| | | | | |
Collapse
|
27
|
Hung ML, Liao HT, Chen WS, Chen MH, Lai CC, Tsai CY, Chang DM. Invasive aspergillosis in patients with systemic lupus erythematosus: a retrospective study on clinical characteristics and risk factors for mortality. Lupus 2018; 27:1944-1952. [DOI: 10.1177/0961203318796294] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Objective The objective of this paper is to analyze the clinical features, outcomes, mortality risk factors, and all-cause mortalities of invasive aspergillosis (IA) in patients with systemic lupus erythematosus (SLE). Methods Medical records were reviewed to identify SLE patients with IA from January 2006 to June 2017, at Taipei Veterans General Hospital, Taiwan. A total of 6714 SLE patients were included. Clinical/laboratory parameters and treatment outcomes were analyzed. Results Four patients (19.0%) had definite and 17 had probable (81.0%) IA. Seven patients (33.3%) survived and 14 died (66.7%). Concurrently, there were 19 pneumonias (90.5%), 17 cases of other infections (81.0%), eight bacteremia (38.1%), nine cytomegalovirus (CMV, 42.7%) and six Candida (28.6%) infections. In all 55 blood cultures, 38 (69.1%) yielded gram-negative bacilli, of which carbapenem-resistant A. baumannii accounted for eight (21.1%); 17 (30.9%) yielded gram-positive cocci, of which methicillin-resistant S. aureus accounted for six (35.3%); and vancomycin-resistant Enterococcus accounted for four (23.5%). Daily steroid dose ≥ 20 mg (hazard ratio (HR) 2.00), recent pulse steroid therapy (HR 2.80), azathioprine (HR 2.00), rituximab (HR 2.00), plasmapheresis (HR 2.00), acute respiratory distress syndrome (HR 2.00), concurrent infections (HR 5.667) and CMV viremia (HR 1.75) were higher in the fatality group. All p values were less than 0.05. Septic shock ( n = 7, 50% in the fatality group) is the most common cause of mortality. Conclusions High daily steroid dosing, recent pulse steroid therapy, azathioprine, rituximab, concurrent infections, and CMV viremia were mortality risk factors for IA in SLE.
Collapse
Affiliation(s)
- ML Hung
- Division of Allergy, Immunology & Rheumatology, Taipei Veterans General Hospital & National Yang-Ming University Faculty of Medicine, Taiwan
| | - HT Liao
- Division of Allergy, Immunology & Rheumatology, Taipei Veterans General Hospital & National Yang-Ming University Faculty of Medicine, Taiwan
| | - WS Chen
- Division of Allergy, Immunology & Rheumatology, Taipei Veterans General Hospital & National Yang-Ming University Faculty of Medicine, Taiwan
| | - MH Chen
- Division of Allergy, Immunology & Rheumatology, Taipei Veterans General Hospital & National Yang-Ming University Faculty of Medicine, Taiwan
| | - CC Lai
- Division of Allergy, Immunology & Rheumatology, Taipei Veterans General Hospital & National Yang-Ming University Faculty of Medicine, Taiwan
| | - CY Tsai
- Division of Allergy, Immunology & Rheumatology, Taipei Veterans General Hospital & National Yang-Ming University Faculty of Medicine, Taiwan
| | - DM Chang
- Division of Allergy, Immunology & Rheumatology, Taipei Veterans General Hospital & National Yang-Ming University Faculty of Medicine, Taiwan
| |
Collapse
|
28
|
Lazar M, Abernathy E, Chen MH, Icenogle J, Janta D, Stanescu A, Pistol A, Santibanez S, Mankertz A, Hübschen JM, Mihaescu G, Necula G, Lupulescu E. Epidemiological and molecular investigation of a rubella outbreak, Romania, 2011 to 2012. ACTA ACUST UNITED AC 2017; 21:30345. [PMID: 27684329 PMCID: PMC5073198 DOI: 10.2807/1560-7917.es.2016.21.38.30345] [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] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2015] [Accepted: 06/16/2016] [Indexed: 11/20/2022]
Abstract
We describe a rubella outbreak that occurred in Romania between September 2011 and December 2012. During this period 24,627 rubella cases, 41.1% (n=10,134) of which female, were notified based on clinical criteria, and a total of 6,182 individuals were found serologically positive for IgM-specific rubella antibody. The median age of notified cases was 18 years (range: <1-65) and the most affected age group 15 to 19 years (n=16,245 cases). Of all notified cases, 24,067 cases (97.7%) reported no history of vaccination. Phylogenetic analysis of 19 sequences (739 nucleotides each), from 10 districts of the country revealed that the outbreak was caused by two distinct rubella virus strains of genotype 2B, which co-circulated with both temporal and geographical overlap. In addition to the 6,182 IgM-positive rubella cases, 28 cases of congenital rubella syndrome (CRS) were identified, including 11 neonatal deaths and one stillbirth. The outbreak underscores the need to encourage higher vaccination uptake in the population, particularly in women of reproductive age, and to strengthen epidemiological and laboratory investigations of suspected rubella cases. Genetic characterisation of wild-type rubella virus is an essential component to enhance surveillance and here we report rubella virus sequences from Romania.
Collapse
Affiliation(s)
- Mihaela Lazar
- National Institute of Research-Development for Microbiology and Immunology "Cantacuzino", Bucharest, Romania
| | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
29
|
Zheng Y, Wu RX, Dorn S, Chen MH. Diversity of tortricid moths in apple orchards: evidence for a cryptic species of Grapholita (Lepidoptera: Tortricidae) from China. Bull Entomol Res 2017; 107:268-280. [PMID: 27809942 DOI: 10.1017/s0007485316000973] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Understanding herbivore diversity both at the species and genetic levels is a key to effective pest management. We examined moth samples from multiple locations from a major apple growing region in China. For specimen collection, we used a pheromone trap designed to attract Grapholita molesta (Busck) (Lepidoptera: Tortricidae). Surprisingly, we found a second species captured at high proportions. Its external morphology (e.g., male genitalia and forewing coloration) was the same as for Grapholita funebrana Treitschke (Lepidoptera: Tortricidae) specimens from Europe. However, the barcode sequence of the mitochondrial gene cytochrome oxidase I (COI) diverged markedly between specimens from China and Europe, and the genetic distance value between the specimens from the two regions as estimated using the Juke-Cantor (JC) model amounted to 0.067. These morphological and molecular findings together point to a cryptic species in G. funebrana from China. Further molecular analyses based on COI and COII genes revealed its extremely high genetic diversity, indicating that the origin of this species includes the sampling region. Moreover, molecular data suggest that this species passed through a recent population expansion. This is the first report on a cryptic species in G. funebrana, as well as the first report on its genetic diversity.
Collapse
Affiliation(s)
- Y Zheng
- College of Plant Protection, Northwest A&F University,Yangling 712100,China
| | - R X Wu
- College of Plant Protection, Northwest A&F University,Yangling 712100,China
| | - S Dorn
- ETH Zurich, Applied Entomology,Schmelzbergstrasse 9/LFO, 8092 Zurich,Switzerland
| | - M H Chen
- College of Plant Protection, Northwest A&F University,Yangling 712100,China
| |
Collapse
|
30
|
Zhou W, He KH, Chen MH. Correlation between polymorphisms in the estrogen receptor α gene and coronary heart disease: A meta-analysis. Genet Mol Res 2016; 15:gmr7835. [PMID: 27706721 DOI: 10.4238/gmr.15037835] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
The aim of this study was to conduct a systematic evaluation the correlation between polymorphisms in the estrogen receptor α gene (ESRα) and coronary heart disease susceptibility. Case-control studies until August 2015 analyzing the correlation between the ESRα PvuII T/C polymorphism and coronary heart disease were obtained from various electronic databases (CBM, CNKI, Wanfang Data, VIP, and MEDLINE, Cochrane Library, Embase, Springer, and Ovid. The data obtained from these studies were evaluated and valid data was extracted. A meta-analysis was performed using RevMan 5.0. Eleven cases, comprising 1742 patients with coronary heart disease and 2012 controls, that conformed to the inclusion criteria set in this study were extracted. The results of our meta-analysis indicated that the C and T alleles, the TC+CC and TT genotypes, and the CC and TT+TC genotypes did not differ significantly. The results of this meta-analysis confirmed that there was no correlation between polymorphisms in ESRα and coronary heart disease susceptibility in the Chinese population.
Collapse
Affiliation(s)
- W Zhou
- Department of Cardiology, Central Hospital of Wuhan, Wuhan, China
| | - K H He
- Department of Cardiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - M H Chen
- Department of Cardiology, Central Hospital of Wuhan, Wuhan, China
| |
Collapse
|
31
|
Ye DM, Chen MH, Zhang SJ, Liu Y. [Schwannoma of the thyroid gland: report of a case]. Zhonghua Bing Li Xue Za Zhi 2016; 45:419-20. [PMID: 27256056 DOI: 10.3760/cma.j.issn.0529-5807.2016.06.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
|
32
|
Luo L, Chen MH, Jia MX, Wang Q, Zhou CQ. [Spontaneous ovulation in in vitro fertilization-embryo transfer cycles using gonadotropin-releasing hormone antagonist: a large-sample retrospective study]. Zhonghua Fu Chan Ke Za Zhi 2016; 51:352-6. [PMID: 27256442 DOI: 10.3760/cma.j.issn.0529-567x.2016.05.006] [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] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
OBJECTIVE To investigate the premature spontaneous ovulation rates in in vitro fertilization-embryo transfer (IVF-ET) cycles using gonadotropin-releasing hormone antagonist (GnRH-ant) and gonadotropin-releasing hormone agonist (GnRH-a), as well as the risk factors for premature spontaneous ovulation. METHODS The rates of premature spontaneous ovulation in a total of 10 612 cycles using GnRH-ant or GnRH-a were compared. Matched case-controlled study and binary logistic regression model were conducted to analyze the risk factors for premature spontaneous ovulation. RESULTS The spontaneous ovulation rate in the whole for GnRH-a cycles was 0.15% (13/8 514), compared with a 1.62% (34/2 098) in GnRH-ant cycles (P<0.01). Further matched controlled study and regression analyze found out that higher basal FSH level was a predominant risk and prediction factor for spontaneous ovulation (OR=1.20, P=0.009). CONCLUSIONS In GnRH-ant cycles, spontaneous ovulation rate is about 10 times than which in GnRH-a cycles. Diminished ovarian function is a predominate risk factor for premature spontaneous ovulation.
Collapse
Affiliation(s)
- L Luo
- Center of Reproductive Medicine, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China
| | | | | | | | | |
Collapse
|
33
|
Fu JJ, Wang S, Guan RH, Yang W, Yan K, Chen MH. [Effect of thermo-sensitive Matrigel on minimization of thermal injury to the nearby structures in radiofrequency ablation of subcapsular hepatic tumors in a rat model]. Zhonghua Yi Xue Za Zhi 2016; 96:43-7. [PMID: 26792607 DOI: 10.3760/cma.j.issn.0376-2491.2016.01.010] [Citation(s) in RCA: 2] [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 evaluate the effect and safety of using thermo-sensitive Matrigel as artificial ascites on minimizing thermal injury to the nearby structures in a rat model of radiofrequency (RF) ablation of the liver. METHODS In this research, the morphological characterization of Matrigel was observed at different temperatures in vitro. In vivo study was conducted by using 42 SD rats in Matrigel, Saline and control groups of 14 rats each. Artificial ascites with 10 ml of Matrigel or saline was produced under ultrasound guidance before RF in the experimental groups. Using a 0.7 cm exposed 17 G RF electrode for 5 minutes (90 ± 2) ℃, 41 hepatic ablations was performed abutting the diaphragm, abdominal wall and stomach. The 41 rats were sacrificed at 24 h, and necropsy was performed.Gross and histopathologic examinations were performed to compare the frequency and extent of thermal injury to the nearby organs.The animal status was followed up to achieve long term safety evaluation of Matrigel. RESULTS Matrigel was in liquid formation at 0-4 ℃, but was not moving in vials at temperature 37 ℃ in 1 min, presenting gel formation.In vivo experiment, the artificial fluid thickness of Matrigel in site was significant larger than that of saline group, especially at 5 min of ablation ((8.1 ± 1.1) mm vs (2.4 ± 0.8)mm, P<0.01). Thermal injury to the nearby structures was found in 12 of 13 cases in control group, 8 of 14 cases (P=0.037) in saline group, and 1 of 14 cases (P<0.01) in Matrigel group. The sizes of the ablation zone of the liver did not differ among the three groups. There was no difference in the incidence of operation related complications among the three groups. There was no significant difference in body weight and health related parameters between Matrigel and saline group during 60 days of follow up. CONCLUSIONS Using thermo-sensitive Matrigel as artificial ascites may be a safe and useful technique and help to further reduce the frequency and severity of collateral thermal injury to the nearby structures compare to conventional saline, during RF ablation of subcapsular hepatic tumors.
Collapse
Affiliation(s)
- J J Fu
- Key Laboratory of Carcinogenesis and Translational Research(Ministry of Education), Department of Ultrasound, Peking University Cancer Hospital and Institute, Beijing 100142, China
| | | | | | | | | | | |
Collapse
|
34
|
Chen SL, Gwee KA, Lee JS, Miwa H, Suzuki H, Guo P, Hao YT, Chen MH. Letter: prompt endoscopy in Asians with uninvestigated dyspepsia - authors' reply. Aliment Pharmacol Ther 2015; 41:793. [PMID: 25781047 DOI: 10.1111/apt.13131] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/08/2022]
Affiliation(s)
- S L Chen
- Division of Gastroenterology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | | | | | | | | | | | | | | |
Collapse
|
35
|
Chen SL, Gwee KA, Lee JS, Miwa H, Suzuki H, Guo P, Hao YT, Chen MH. Systematic review with meta-analysis: prompt endoscopy as the initial management strategy for uninvestigated dyspepsia in Asia. Aliment Pharmacol Ther 2015; 41:239-52. [PMID: 25429769 DOI: 10.1111/apt.13028] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/27/2014] [Revised: 09/04/2014] [Accepted: 10/27/2014] [Indexed: 01/04/2023]
Abstract
BACKGROUND Prompt endoscopy should be considered as an initial strategy for uninvestigated dyspepsia in the background of high prevalence of Helicobacter pylori infection and malignancy. However, with changes of disease patterns and dyspepsia definition, the prevalence of organic lesions at endoscopy in dyspepsia patients and the predictive values of alarm features and age for in malignancy remain unclear in Asian population. AIMS To evaluate the appropriateness of prompt endoscopy as an initial dyspepsia management strategy, we investigated the organic lesion detection rates in Asian dyspepsia patients as well as the diagnostic accuracies of alarm features and age thresholds for malignancy. METHODS Literature was retrieved from MEDLINE, PubMed, Embase, Cochrane Library and CINAHL Plus. The prevalence rates of organic lesions and young cancer patients among dyspeptic patients and the sensitivities, specificities, likelihood ratios and diagnostic odds ratio (DOR) of alarm features and ages were estimated. The summary receiver operating characteristic curve was constructed and the area under the curve (AUC) calculated. Subgroup, sensitivity and meta-regression analyses were performed. RESULTS Of the 18 included studies, 15 reported organic lesion detection rates, and six and five analysed the predictive values of alarm features and ages respectively. The overall malignancy detection rate was 1.3% (95% CI: 0.80-2.10). Among cancer patients, 17.8% (95% CI: 10.90-29.00) were younger than 45 years and 3.0% (95% CI: 2.50-3.50) were younger than 35 years. The diagnostic accuracy of alarm features for predicting malignancy was moderate (DOR: 4.87, 95% CI: 2.72-8.71; AUC = 0.74). The diagnostic accuracy at age >35 years (DOR: 9.41, 95% CI: 7.89-11.21; AUC = 0.82) was better than that at age >45 years (DOR: 3.50, 95% CI: 2.32-5.27; AUC = 0.70). CONCLUSIONS The malignancy detection rate and proportion of young cancer patients were high among Asian dyspepsia patients. Alarm features and age were of limited value for predicting malignancy, and prompt endoscopy should be considered as the initial strategy for dyspepsia in Asian populations. The optimal age threshold for endoscopy screening in Asia might be 35 years.
Collapse
Affiliation(s)
- S L Chen
- Division of Gastroenterology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | | | | | | | | | | | | | | |
Collapse
|
36
|
Zhu Z, Chen MH, Abernathy E, Zhou S, Wang C, Icenogle J, Xu W. Genomic analysis of the Chinese genotype 1F rubella virus that disappeared after 2002 in China. J Med Virol 2014; 86:2114-21. [PMID: 24962600 DOI: 10.1002/jmv.23936] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/04/2014] [Indexed: 11/06/2022]
Abstract
Genotype 1F was likely localized geographically to China as it has not been reported elsewhere. In this study, whole genome sequences of two rubella 1F virus isolates were completed. Both viruses contained 9,761 nt with a single nucleotide deletion in the intergenic region, compared to the NCBI rubella reference sequence (NC 001545). No evidence of recombination was found between 1F and other rubella viruses. The genetic distance between 1F viruses and 10 other rubella virus genotypes (1a, 1B, 1C, 1D, 1E, 1G, 1J 2A, 2B, and 2C) ranged from 3.9% to 8.6% by pairwise comparison. A region known to be hypervariable in other rubella genotypes was also the most variable region in the 1F genomes. Comparisons to all available rubella virus sequences from GenBank identified 22 nucleotide variations exclusively in 1F viruses. Among these unique variations, C9306U is located within the recommended molecular window for rubella virus genotyping assignment, could be useful to confirm 1F viruses. Using the Bayesian Markov Chain Monte Carlo (MCMC) method, the time of the most recent common ancestor for the genotype 1F was estimated between 1976 and 1995. Recent rubella molecular surveillance suggests that this indigenous strain may have circulated for less than three decades, as it has not been detected since 2002.
Collapse
Affiliation(s)
- Zhen Zhu
- WHO WPRO Regional Reference Measles/Rubella Laboratory and Ministry of Health Key Laboratory of Medical Virology, National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | | | | | | | | | | | | |
Collapse
|
37
|
Beiersdorfer P, Träbert E, Brown GV, Clementson J, Thorn DB, Chen MH, Cheng KT, Sapirstein J. Hyperfine splitting of the 2s1/2 and 2p1/2 levels in Li- and be-like ions of (59)(141) Pr. Phys Rev Lett 2014; 112:233003. [PMID: 24972204 DOI: 10.1103/physrevlett.112.233003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/14/2014] [Indexed: 06/03/2023]
Abstract
High-resolution spectroscopy of the 2s(1/2)-2p(1/2) transition in the extreme ultraviolet region is shown to resolve the level splitting induced by the nuclear magnetic field of both the 2s(1/2) and the 2p(1/2) levels in lithiumlike (141)Pr(56+) and of the 2s(1/2)2p(1/2) (3)P(1) level in berylliumlike (141)Pr(55+). The (141)Pr ions are an ideal test of this measurement approach because their energy levels are known well from first principles and are unaffected by small energy contributions from QED and nuclear magnetization effects. The accuracy attained in the measured 196.5 ± 1.2 meV 2s(1/2) splitting is more than an order of magnitude better than that achieved before using crystal spectroscopy of the 2s(1/2)-2p(3/2) x-ray transition and at the level needed to implement a proposed scheme for disentangling the contributions from QED and nuclear magnetization effects in higher-Z ions, such as (209)Bi.
Collapse
Affiliation(s)
- P Beiersdorfer
- Lawrence Livermore National Laboratory, Livermore, California 94550-9234, USA
| | - E Träbert
- Lawrence Livermore National Laboratory, Livermore, California 94550-9234, USA
| | - G V Brown
- Lawrence Livermore National Laboratory, Livermore, California 94550-9234, USA
| | - J Clementson
- Lawrence Livermore National Laboratory, Livermore, California 94550-9234, USA
| | - D B Thorn
- Lawrence Livermore National Laboratory, Livermore, California 94550-9234, USA
| | - M H Chen
- Lawrence Livermore National Laboratory, Livermore, California 94550-9234, USA
| | - K T Cheng
- Lawrence Livermore National Laboratory, Livermore, California 94550-9234, USA
| | - J Sapirstein
- University of Notre Dame, Notre Dame, Indiana 46556, USA
| |
Collapse
|
38
|
Chen MH, Kuo ST, Renault T, Chang PH. The development of a loop-mediated isothermal amplification assay for rapid and sensitive detection of abalone herpesvirus DNA. J Virol Methods 2013; 196:199-203. [PMID: 24291740 DOI: 10.1016/j.jviromet.2013.11.011] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2013] [Revised: 11/16/2013] [Accepted: 11/20/2013] [Indexed: 11/25/2022]
Abstract
A loop-mediated isothermal amplification (LAMP) assay was developed for the detection of abalone herpesvirus DNA. Two pairs of primers were designed, based on the sequence of the DNA polymerase gene of abalone herpesvirus. The reaction temperature and time were optimized to 63°C and 60min, respectively. LAMP amplicons were analyzed by 2% agarose gel electrophoresis or by visual inspection of a colour change emitted by fluorescent dye. The method developed was specific for the detection of abalone herpesvirus, without cross-reactions with other tested herpesviruses including ostreid herpesvirus 1 (OsHV-1), European eel herpesvirus, koi herpesvirus (KHV) and an avian herpesvirus. The LAMP assay was 100 folds more sensitive than a conventional PCR and 10 folds less sensitive than a SYBR Green PCR. These results indicate that the developed LAMP assay is a simple, rapid, sensitive, specific and reliable technique for the detection of abalone herpesvirus.
Collapse
Affiliation(s)
- M H Chen
- Institute of Veterinary Medicine, School of Veterinary Medicine, National Taiwan University, Taipei, Taiwan; Tzu Chi College of Technology, Hualien, Taiwan
| | - S T Kuo
- National Institute for Animal Health, Tansui, Taiwan
| | - T Renault
- Ifremer, Unité Santé Génétique et Microbiologie des Mollusques, Laboratoire de Génétique et Pathologie des Mollusques Marins, 17390 La Tremblade, France
| | - P H Chang
- Institute of Veterinary Medicine, School of Veterinary Medicine, National Taiwan University, Taipei, Taiwan.
| |
Collapse
|
39
|
Chen MH, Dorn S. Cross-amplification of microsatellites from the codling moth Cydia pomonella to three other species of the tribe Grapholitini (Lepidoptera: Tortricidae). Mol Ecol Resour 2013; 10:1034-7. [PMID: 21565113 DOI: 10.1111/j.1755-0998.2010.02837.x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
This study examined cross-species amplification of 33 microsatellite markers, previously developed for Cydia pomonella, in three related fruit moth species of the same tribe (Grapholitini), namely Grapholita molesta, Grapholita funebrana and Grapholita lobarzewskii. Eight microsatellite loci yielded polymorphic products for G. molesta, nine for G. funebrana and 11 for G. lobarzewskii. At all these loci, the number of alleles ranged between four and 11 in G. molesta, and between four and nine in G. funebrana and G. lobarzewskii each. The successful cross-amplified loci can be used for research on population genetics and gene flow of the three target species.
Collapse
Affiliation(s)
- M H Chen
- Institute of Plant Sciences/Applied Entomology, ETH Zurich, Schmelzbergstr. 9/LFO, CH-8092 Zurich, Switzerland
| | | |
Collapse
|
40
|
Affiliation(s)
- X B Xing
- Department of Gastroenterology, First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | | | | | | |
Collapse
|
41
|
Chen MH, Kuo ST, Renault T, Friedman CS, Chang PH. Development of a polymerase chain reaction for the detection of abalone herpesvirus infection based on the DNA polymerase gene. J Virol Methods 2012; 185:1-6. [PMID: 22579937 DOI: 10.1016/j.jviromet.2012.03.024] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2011] [Revised: 03/14/2012] [Accepted: 03/21/2012] [Indexed: 11/16/2022]
Abstract
A 5781-base pair (bp) fragment of genomic DNA from the Taiwanese abalone herpesvirus was obtained and showed 99% (5767/5779) homology in the nucleotide sequence and 99% (1923/1926) in the amino acid sequence with the DNA polymerase gene of the abalone herpesvirus strain Victoria/AUS/2007. Homology of the amino acid sequence with the DNA polymerase of ostreid herpesvirus 1 was 30% (563/1856). In this study, a PCR-based procedure for detecting herpesvirus infection of abalone, Haliotis diversicolor supertexta, in Taiwan was developed. The method employed primer sets targeting the viral DNA polymerase gene, and was able to amplify DNA fragments of the expected size from infected samples. Primer sets of 40f and 146r were designed for amplification of an expected PCR product of 606 bp. Combining the new PCR protocol with histopathology, this assay can serve as a reliable diagnostic for herpesvirus infections in abalone.
Collapse
Affiliation(s)
- M H Chen
- Institute of Veterinary Medicine, School of Veterinary Medicine, National Taiwan University, Taipei, Taiwan
| | | | | | | | | |
Collapse
|
42
|
Wang AJ, Liang MJ, Jiang AY, Lin JK, Xiao YL, Peng S, Chen J, Wen WP, Chen MH. Predictors of acid suppression success in patients with chronic laryngitis. Neurogastroenterol Motil 2012; 24:432-7, e210. [PMID: 22276941 DOI: 10.1111/j.1365-2982.2011.01873.x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
BACKGROUND Up to 50% of the patients suspected of reflux laryngitis syndrome failed to respond to acid suppression therapy. However, predictors of acid suppression success have not been determined. METHODS Consecutive patients with chronic laryngitis were enrolled prospectively. All the patients underwent laryngoscopy, esophagogastroduodenoscopy and 24-h multichannel intraluminal impedance and pH (MII-pH) monitoring before receiving rabeprazole 10 mg b.i.d. for 3 months. Patient was considered as a responder to acid suppression if the chief laryngeal complaint score during the last week since last interview had decreased by at least 50% after the start of therapy compared with baseline. Cox regression analysis was used to determine the independent predictors of acid suppression success. KEY RESULTS Of 92 patients (age 42.4 ± 14.3 years, 50 women), 42 (45.7%) responded to acid suppression after 3 months. Gastroesophageal reflux disease was defined in 22 patients, of whom 19 patients had pathological distal esophageal acid exposure and 5 were defined as erosive esophagitis. The time to response showed a significant hazard ratio for patients with increased distal esophageal acid exposure time (β: 0.93; HR: 2.55; 95% CI: 1.24-5.24; P = 0.011) and increased laryngopharyngeal bolus exposure time (BET; β: 0.96; HR: 2.61; 95% CI: 1.36-5.00; P = 0.004). The latter had the best Youden Index (0.34) and accuracy (68.5%). CONCLUSIONS & INFERENCES The success of acid suppression on chronic laryngitis could be predicted using reflux parameters detected by MII-pH, among which increased laryngopharyngeal BET is the best.
Collapse
Affiliation(s)
- A J Wang
- Department of Gastroenterology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | | | | | | | | | | | | | | | | |
Collapse
|
43
|
Tsai WP, Chen MH, Lee MH, Yu KH, Wu MW, Liou LB. Cytomegalovirus infection causes morbidity and mortality in patients with autoimmune diseases, particularly systemic lupus: in a Chinese population in Taiwan. Rheumatol Int 2011; 32:2901-8. [PMID: 21898057 DOI: 10.1007/s00296-011-2131-4] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2011] [Accepted: 08/22/2011] [Indexed: 11/26/2022]
Abstract
To investigate the clinical outcome of cytomegalovirus (CMV) infection in febrile hospitalized patients with autoimmune diseases, mostly systemic lupus erythematosus (SLE). Fifty-four febrile patients were analyzed retrospectively. Half were diagnosed as CMV infection, by positive CMV pp65 antigenemia assay. Clinical and laboratory data between two groups were compared. Correlation between laboratory data and SELENA-SLEDAI scores/mortality were analyzed in the CMV infection group. Receiver operating characteristic analysis was performed to determine the cutoff points of different parameters for predicting mortality or morbidity. The CMV infection group received a higher corticosteroid dosage (mean 26.3 mg/day) and a higher percentage of azathioprine use before admission than the non-CMV infection group. In the former, the deceased subgroup had a significantly higher number of infected leukocytes for CMV (shortened as CMV counts, P = 0.013), more cases of bacterial infection (P = 0.090), and a higher SLE disease activity index score (P = 0.072) than the alive subgroup. The CMV infection group had lower lymphocyte count and more positive bacterial infection than the non-CMV infection group did (P = 0.013 and P = 0.027, respectively). A level of 25 CMV particles/5 × 10(5) polymorphonuclear neutrophils (PMN) was the best cutoff point for predicting CMV-associated mortality, with a sensitivity of 75.0% and specificity of 72.2%. Moderate dose (30 mg/day) of prednisolone or azathioprine use predisposes patients with autoimmune diseases to CMV infection with concurrent bacterial infection. In particular, peak CMV counts at 25/5 × 10(5) PMN or low lymphocyte counts predict mortality or morbidity, respectively.
Collapse
Affiliation(s)
- W P Tsai
- Chang Gung Memorial Hospital, Lin-kou, Tao-yuan, Taiwan
| | | | | | | | | | | |
Collapse
|
44
|
Rota PA, Brown KE, Hübschen JM, Muller CP, Icenogle J, Chen MH, Bankamp B, Kessler JR, Brown DW, Bellini WJ, Featherstone D. Improving Global Virologic Surveillance for Measles and Rubella. J Infect Dis 2011; 204 Suppl 1:S506-13. [DOI: 10.1093/infdis/jir117] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
45
|
Chen MH, Teng PY, Chen CY, Hsu CC. Organic and total mercury levels in bigeye tuna, Thunnus obesus, harvested by Taiwanese fishing vessels in the Atlantic and Indian Oceans. Food Addit Contam Part B Surveill 2011; 4:15-21. [PMID: 24779657 DOI: 10.1080/19393210.2010.535908] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Muscle samples of 121 and 110 bigeye tuna (Thunnus obesus) caught by Taiwanese long-line fishing vessels in the Atlantic and Indian Oceans, respectively, were used to analyze total mercury (THg) and organic mercury (OHg) content. The overall THg and OHg concentrations were 0.786 ± 0.386 (0.214-3.133) and 0.595 ± 0.238 (0.143-2.222) mg kg⁻¹ wet weight, respectively, similar to the results of previous studies. Our findings, however, reflected the highest THg and OHg concentrations for the species in each ocean among the published data. Mean THg and OHg concentrations in Atlantic tuna were significantly (p < 0.05) higher than those in Indian tuna. Two of 121 samples of tuna from the Atlantic Ocean, but no samples from the Indian Ocean, had levels of OHg above 2 mg kg⁻¹ wet weight set by the Department of Health Taiwan, and 13 of 121 samples of tuna from the Atlantic Ocean and three of 110 samples from the Indian Ocean had levels of OHg above 1 mg kg⁻¹ wet weight set by US FDA and WHO. Accordingly, for adult Taiwanese men and women with average body weight of 65 and 55 kg, respectively, the maximum allowable weekly intake of bigeye tuna is suggested to be 170 and 145 g, respectively.
Collapse
Affiliation(s)
- M H Chen
- a Department of Marine Biotechnology and Resources , National Sun Yat-sen University , 70 Lianhai Rd., Gushan , Kaohsiung 80424 , Taiwan
| | | | | | | |
Collapse
|
46
|
Chen MH, Dorn S. Microsatellites reveal genetic differentiation among populations in an insect species with high genetic variability in dispersal, the codling moth, Cydia pomonella (L.) (Lepidoptera: Tortricidae). Bull Entomol Res 2010; 100:75-85. [PMID: 19366473 DOI: 10.1017/s0007485309006786] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Little is known about genetic differentiation and gene flow in populations of insect species that have a high genetic variability in dispersal but lack morphologically visible morphs that disperse. These characteristics apply to the codling moth, Cydia pomonella L. (Lepidoptera: Tortricidae), a major pest of fruits and nuts. Larvae were collected from three orchards each of pome fruits, stone fruits and nut trees in a major fruit growing area of Switzerland (Valais) and from six further (mainly apple) orchards throughout this country. Nine microsatellite loci were used to investigate genetic differentiation and the amount of gene flow among the sampled populations. All the loci were shown to be polymorphic in all populations. The number of alleles ranged from five to 15 over nine loci for the 15 populations. Significant genetic differentiation was noted among the populations from apple, apricot and walnut in the Valais region. Furthermore, among the eight populations sampled from apple in different geographic regions throughout Switzerland, AMOVA and pairwise FST analysis revealed significant population genetic differentiation even between populations collected from orchards 10 km apart. These results indicate that a distinct prevailing characteristic, in the present case the sedentary behaviour of the moth, can shape population architecture.
Collapse
Affiliation(s)
- M H Chen
- ETH Zurich, Institute of Plant Sciences/Applied Entomology, Schmelzbergstrasse 9/LFO, CH-8092, Zurich, Switzerland
| | | |
Collapse
|
47
|
Chen MH, Dorn S. Reliable and efficient discrimination of four internal fruit-feeding Cydia and Grapholita species (Lepidoptera: Tortricidae) by polymerase chain reaction-restriction fragment length polymorphism. J Econ Entomol 2009; 102:2209-2216. [PMID: 20069850 DOI: 10.1603/029.102.0625] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
The fruit pests Cydia pomonella (L.), Grapholita molesta (Busck), Grapholita funebrana Treitschke, and Grapholita lobarzewskii Nowicki (all Lepidoptera: Tortricidae) are sympatric in Europe, and some of them are expanding their distribution range worldwide by continuous invasion into new areas. Identification of the small larvae by morphological characters and damage symptoms is difficult, and many misidentifications among these tortricids of the tribe Grapholitini are reported. In the current study, the species were separated using polymerase chain reaction (PCR)-restriction fragment length polymorphism (RFLP) analyses. Samples were obtained from different countries and continents, and the mitochondrial cytochrome oxidase subunit I (COI) fragments of one individual per species and geographical site were sequenced. Based on the alignments of the amplified COI sequences, the PCR-RFLP method was established with 42 individuals and successfully validated using a total of 122 individuals of the four species. Results document that this method allows for discrimination of larvae, pupae, and adult specimens of all four species and can be used for a rapid and reliable identification of C. pomonella, G. molesta, G. funebrana, and G. lobarzewskii. Moreover, it can easily be expanded to other internal tortricid fruit feeder species that occur on different continents.
Collapse
Affiliation(s)
- M H Chen
- ETH Zurich, Institute of Plant Sciences/Applied Entomology, Zurich, Switzerland
| | | |
Collapse
|
48
|
Abstract
BACKGROUND AND STUDY AIM The aim of this study was to determine the prevalence, characteristics, and risk factors of erosive esophagitis and Barrett's esophagus in an adult Chinese population without gastroesophageal reflux symptoms. PATIENTS AND METHODS Between March 2006 and February 2007, consecutive individuals aged between 18 and 75 years, who underwent routine upper endoscopy as part of their regular medical examination were recruited. Demographic and medical information were collected. Erosive esophagitis was defined endoscopically as visible breaks of the distal esophageal mucosa. Barrett's esophagus was diagnosed endoscopically and confirmed histologically. "Silent GERD" was defined when erosive esophagitis and/or Barrett's esophagus were present in an individual without reflux symptoms. RESULTS Among the 2580 individuals included, erosive esophagitis and Barrett's esophagus were found in 4.3 % (n = 110) and 1.0 % (n = 27), respectively. In individuals with erosive esophagitis and Barrett's esophagus, 33.6 % and 40.7 %, respectively, were asymptomatic. Thus, the prevalence of erosive esophagitis and Barrett's esophagus in individuals without GERS was 1.6 % and 0.5 %, respectively, giving an overall prevalence of silent GERD of 2.0 % (46 / 2270). Multivariate analysis identified that male sex (odds ratio [OR] = 2.87, 95 % confidence interval [CI] 1.24 - 6.66; P = 0.014), hiatus hernia (OR = 9.68, 95 %CI 5.00 - 17.95; P < 0.001), and alcohol consumption (OR = 3.17, 95 %CI 1.44 - 6.97; P = 0.004) were positively associated with erosive esophagitis, whereas Helicobacter Pylori infection (OR = 0.37, 95 %CI 0.14 - 0.98; P = 0.046) was negatively associated with erosive esophagitis. Alcohol consumption (OR = 5.32, 95 %CI 1.55 - 13.33; P = 0.008) was positively associated with Barrett's esophagus in asymptomatic individuals. CONCLUSION In this cohort of the adult Chinese population without reflux symptoms, the prevalence of erosive esophagitis and Barrett's esophagus is 1.6 % and 0.5 %, respectively, with an overall prevalence of silent GERD of 2.0 %. Male sex, hiatus hernia, and alcohol consumption are positively associated with erosive esophagitis, whereas a negative association exists for H. pylori infection. Alcohol consumption is positively associated with Barrett's esophagus.
Collapse
Affiliation(s)
- S Peng
- Division of Gastroenterology and Hepatology, The First Affiliated Hospital of Sun-Yat Sen University, Guangzhou, China
| | | | | | | | | | | | | |
Collapse
|
49
|
Abstract
Broadband, compact in-fiber polarizers were fabricated using a pulsed CO(2) laser to modify the air holes along one side of the hollow-core photonic bandgap fibers. The polarizers have lengths from 3 to 6 mm and exhibit a polarization extinction ratio of better than 20 dB over a wavelength range larger than 100 nm at approximately 1,550 nm.
Collapse
Affiliation(s)
- H F Xuan
- Department of Electrical Engineering, The Hong Kong Polytechnic University, Hong Kong, China
| | | | | | | | | | | | | |
Collapse
|
50
|
Manuel O, Humar A, Chen MH, Chernenko S, Singer LG, Cobos I, Kumar D. Immunogenicity and safety of an intradermal boosting strategy for vaccination against influenza in lung transplant recipients. Am J Transplant 2007; 7:2567-72. [PMID: 17908277 DOI: 10.1111/j.1600-6143.2007.01982.x] [Citation(s) in RCA: 62] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
The immunogenicity of influenza vaccine is suboptimal in lung transplant recipients. Use of a booster dose and vaccine delivery by the intradermal rather than intramuscular route may improve response. We prospectively evaluated the immunogenicity and safety of a 2-dose boosting strategy of influenza vaccine. Sixty lung transplant recipients received a standard intramuscular injection of the 2006-2007 inactivated influenza vaccine, followed 4 weeks later by an intradermal booster of the same vaccine. Immunogenicity was assessed by measurement of geometric mean titer of antibodies after both the intramuscular injection and the intradermal booster. Vaccine response was defined as 4-fold or higher increase of antibody titers to at least one vaccine antigen. Thirty-eight out of 60 patients (63%) had a response after intramuscular vaccination. Geometric mean titers increased for all three vaccine antigens following the first dose (p < 0.001). However, no significant increases in titer were observed after the booster dose for all three antigens. Among nonresponders, 3/22 (13.6%) additional patients responded after the intradermal booster (p = 0.14). The use of basiliximab was associated with a positive response (p = 0.024). After a single standard dose of influenza vaccine, a booster dose given by intradermal injection did not significantly improve vaccine immunogenicity in lung transplant recipients.
Collapse
Affiliation(s)
- O Manuel
- Transplant Infectious Diseases, University of Alberta, Edmonton, Alberta, Canada
| | | | | | | | | | | | | |
Collapse
|