26
|
Cao Z, Aharonian FA, An Q, Axikegu, Bai LX, Bai YX, Bao YW, Bastieri D, Bi XJ, Bi YJ, Cai H, Cai JT, Cao Z, Chang J, Chang JF, Chang XC, Chen BM, Chen J, Chen L, Chen L, Chen L, Chen MJ, Chen ML, Chen QH, Chen SH, Chen SZ, Chen TL, Chen XL, Chen Y, Cheng N, Cheng YD, Cui SW, Cui XH, Cui YD, Dai BZ, Dai HL, Dai ZG, Danzengluobu, Della Volpe D, D Ettorre Piazzoli B, Dong XJ, Fan JH, Fan YZ, Fan ZX, Fang J, Fang K, Feng CF, Feng L, Feng SH, Feng YL, Gao B, Gao CD, Gao Q, Gao W, Ge MM, Geng LS, Gong GH, Gou QB, Gu MH, Guo JG, Guo XL, Guo YQ, Guo YY, Han YA, He HH, He HN, He JC, He SL, He XB, He Y, Heller M, Hor YK, Hou C, Hou X, Hu HB, Hu S, Hu SC, Hu XJ, Huang DH, Huang QL, Huang WH, Huang XT, Huang ZC, Ji F, Ji XL, Jia HY, Jiang K, Jiang ZJ, Jin C, Kuleshov D, Levochkin K, Li BB, Li C, Li C, Li F, Li HB, Li HC, Li HY, Li J, Li K, Li WL, Li X, Li X, Li XR, Li Y, Li YZ, Li Z, Li Z, Liang EW, Liang YF, Lin SJ, Liu B, Liu C, Liu D, Liu H, Liu HD, Liu J, Liu JL, Liu JS, Liu JY, Liu MY, Liu RY, Liu SM, Liu W, Liu YN, Liu ZX, Long WJ, Lu R, Lv HK, Ma BQ, Ma LL, Ma XH, Mao JR, Masood A, Mitthumsiri W, Montaruli T, Nan YC, Pang BY, Pattarakijwanich P, Pei ZY, Qi MY, Ruffolo D, Rulev V, Sáiz A, Shao L, Shchegolev O, Sheng XD, Shi JR, Song HC, Stenkin YV, Stepanov V, Sun QN, Sun XN, Sun ZB, Tam PHT, Tang ZB, Tian WW, Wang BD, Wang C, Wang H, Wang HG, Wang JC, Wang JS, Wang LP, Wang LY, Wang RN, Wang W, Wang W, Wang XG, Wang XJ, Wang XY, Wang YD, Wang YJ, Wang YP, Wang Z, Wang Z, Wang ZH, Wang ZX, Wei DM, Wei JJ, Wei YJ, Wen T, Wu CY, Wu HR, Wu S, Wu WX, Wu XF, Xi SQ, Xia J, Xia JJ, Xiang GM, Xiao G, Xiao HB, Xin GG, Xin YL, Xing Y, Xu DL, Xu RX, Xue L, Yan DH, Yang CW, Yang FF, Yang JY, Yang LL, Yang MJ, Yang RZ, Yang SB, Yao YH, Yao ZG, Ye YM, Yin LQ, Yin N, You XH, You ZY, Yu YH, Yuan Q, Zeng HD, Zeng TX, Zeng W, Zeng ZK, Zha M, Zhai XX, Zhang BB, Zhang HM, Zhang HY, Zhang JL, Zhang JW, Zhang L, Zhang L, Zhang LX, Zhang PF, Zhang PP, Zhang R, Zhang SR, Zhang SS, Zhang X, Zhang XP, Zhang Y, Zhang Y, Zhang YF, Zhang YL, Zhao B, Zhao J, Zhao L, Zhao LZ, Zhao SP, Zheng F, Zheng Y, Zhou B, Zhou H, Zhou JN, Zhou P, Zhou R, Zhou XX, Zhu CG, Zhu FR, Zhu H, Zhu KJ, Zuo X. Ultrahigh-energy photons up to 1.4 petaelectronvolts from 12 γ-ray Galactic sources. Nature 2021; 594:33-36. [PMID: 34002091 DOI: 10.1038/s41586-021-03498-z] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Accepted: 03/26/2021] [Indexed: 02/04/2023]
Abstract
The extension of the cosmic-ray spectrum beyond 1 petaelectronvolt (PeV; 1015 electronvolts) indicates the existence of the so-called PeVatrons-cosmic-ray factories that accelerate particles to PeV energies. We need to locate and identify such objects to find the origin of Galactic cosmic rays1. The principal signature of both electron and proton PeVatrons is ultrahigh-energy (exceeding 100 TeV) γ radiation. Evidence of the presence of a proton PeVatron has been found in the Galactic Centre, according to the detection of a hard-spectrum radiation extending to 0.04 PeV (ref. 2). Although γ-rays with energies slightly higher than 0.1 PeV have been reported from a few objects in the Galactic plane3-6, unbiased identification and in-depth exploration of PeVatrons requires detection of γ-rays with energies well above 0.1 PeV. Here we report the detection of more than 530 photons at energies above 100 teraelectronvolts and up to 1.4 PeV from 12 ultrahigh-energy γ-ray sources with a statistical significance greater than seven standard deviations. Despite having several potential counterparts in their proximity, including pulsar wind nebulae, supernova remnants and star-forming regions, the PeVatrons responsible for the ultrahigh-energy γ-rays have not yet been firmly localized and identified (except for the Crab Nebula), leaving open the origin of these extreme accelerators.
Collapse
|
27
|
Ramachandran P, Kathirvelu B, Chakraborti A, Gajendran M, Zhahid U, Ghanta S, Onukogu I, Narh JT, Wang JC, Anwer F. COVID-19 in Cancer Patients From New York City: A Comparative Single Center Retrospective Analysis. Cancer Control 2020; 27:1073274820960457. [PMID: 33043705 PMCID: PMC7791463 DOI: 10.1177/1073274820960457] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
In this retrospective study we analyze and compare clinical characteristics and
outcomes of patients with and without cancer history who were infected with
novel coronavirus disease 19 (COVID-19). Medical records were reviewed and a
comparative analysis of 53 cancer and 135 non-cancer patients with COVID-19 were
summarized. Results: The median age for COVID-19 patients with and without
cancer was 71.5 and 61.6 years, respectively. Patients aged 60 years and above
were 86.8% and 60.7% in cancer and non-cancer groups, respectively. A high
proportion of cases were seen in African Americans 73.6% (with cancer) and 75.6%
(without cancer) followed by Hispanic patients. Male and female patients had a
high percentage of prostate (39.3%) and breast (32%) cancer respectively.
Prostate cancer (18.9%) and myeloma (11.3%) were common among solid and
hematological cancers respectively. Hypertension and smoking were prevalent
among cancer (83% and 41.5%) compared to non-cancer (67.4% and 9.6%) patients.
The common symptoms in cancer patients were dyspnea (64.2%) followed by fever
and cough (50.9%) compared to fever (68.1%) and cough (66.7%) in non-cancer
patients. Cancer patients had higher levels of lactic acidosis, C-reactive
protein, lactate dehydrogenase, and alkaline phosphatase than non-cancer
patients (p < 0.05). Conclusions: Rapid clinical deterioration was seen in
cancer patients who were aged 60 years and above. Higher mortality was seen in
this subgroup, especially when they had associated hypertension and elevated
levels of CRP and LDH.
Collapse
|
28
|
Li HJ, Wang YL, Ming L, Guo XQ, Li YL, Wang JC, Zhang YQ, Cheng L. Development of a prognostic model based on an immunogenomic landscape analysis of colorectal cancer. Future Oncol 2020; 17:301-313. [PMID: 32996773 DOI: 10.2217/fon-2020-0022] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
Screening and therapeutic programs for colorectal cancer (CRC) are invasive or not effective and unable to meet patient needs. Major advances in immunogenomics may change this status but need more exploration. Differentially expressed genes and immune-related genes (IRGs) were identified by computational methods. A prognostic model was established and validated based on survival-related IRGs via stepwise multivariate Cox regression analysis. Nine IRGs were selected and identified as survival-related genes. A 7-gene prognostic model could offer a preliminary and valid determination of risk in CRC patients. The area under the curve of the receiver operating characteristic was 0.672. The 7-gene prognostic model might be used as a novel prognostic tool in CRC patients.
Collapse
|
29
|
Jawed SF, Liu YJ, Wang JC, Rabadia CD, Wang LQ, Li YH, Zhang XH, Zhang LC. Tailoring deformation and superelastic behaviors of beta-type Ti-Nb-Mn-Sn alloys. J Mech Behav Biomed Mater 2020; 110:103867. [PMID: 32957184 DOI: 10.1016/j.jmbbm.2020.103867] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2020] [Revised: 04/20/2020] [Accepted: 05/17/2020] [Indexed: 10/24/2022]
Abstract
A group of Ti-25Nb-xMn-ySn (in wt%; x = 2, 4 and y = 1, 5) alloys were designed using the "BF-d-electron superelasticity" empirical relationship and subsequently were cast in order to investigate their microstructure, deformation and superelastic behaviors. Monolithic β phase is found in all investigated alloys except in Ti-25Nb-2Mn-1Sn alloy which exhibits α"+β dual-phase microstructure. During compression testing, the Ti-25Nb-2Mn-1Sn alloy fails and demonstrates sufficient plasticity of ~ 41% and ultimate compressive strength of ~ 1800 MPa, where other alloys do not fail within the load capacity of 100 kN. Among all the investigated alloys, Ti-25Nb-4Mn-1Sn alloy exhibits the highest yield strength (~ 710 MPa) while Ti-25Nb-2Mn-1Sn alloy possesses the highest hardness (~ 244 HV). In this work, yield strength is influenced by solid solution and grain boundary strengthening while hardness is affected by the amount of constituent phases in each alloy. Additionally, Ti-25Nb-4Mn-1Sn shows highest recoverable strain (2.35%) and superelastic recovery ratio (90%) during cyclic loading-unloading up to 3% strain level, with highest total energy absorption among the investigated alloys. Moreover, all the Ti-25Nb-xMn-ySn alloys display shear bands except that Ti-25Nb-2Mn-1Sn alloy displays shear bands together with some cracks on the outer surface of compressively deformed morphologies.
Collapse
|
30
|
Niu Y, Miao PP, Wang JC, Meng T, Jia Q, Shen ML, Bin P, Duan HW, Shao H, Dai YF. [Analysis of the relationship between the changes of lung function and serum proinflammatory cytokines in workers occupationally exposed to toluene diisocyanate]. ZHONGHUA YU FANG YI XUE ZA ZHI [CHINESE JOURNAL OF PREVENTIVE MEDICINE] 2020; 54:673-678. [PMID: 32842285 DOI: 10.3760/cma.j.cn112150-20191019-00800] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Objective: To analyze the correlation between the changes of lung function and serum proinflammatory cytokines in workers occupationally exposed to toluene diisocyanate (TDI), and to explore the evaluation index of respiratory toxicity of TDI. Methods: In October 2014, 61 male workers engaged in TDI synthesis process, purification process, packaging process and the above production process in a TDI factory in western China were selected as TDI exposure group; 62 male enterprise managers who were not exposed to TDI and other known allergenic chemicals were selected as control group, which were matched at the age of workers in exposure group. The questionnaire survey obtained information such as gender, length of service, age, occupational history, exposed length of service and so on. The lung function indexes [forced expiratory volume in the first second (FEV1), forced vital capacity (FVC), FEV1/FVC] and serum levels of interleukin (IL)-1 β, IL-6, IL-8, tumor necrosis factor (TNF)-α, macrophage inflammatory factor-1 β, monocyte chemoattractant factor-1 and vascular endothelial growth factor were measured. The urine was collected after the weekend shift, and the concentration of (TDA), the metabolite of TDI, was determined as the index of internal exposure. Spearman rank correlation was used to analyze the correlation between cytokines and lung function indexes, and multivariate linear regression was used to analyze the changes of lung function indexes and cytokines with TDI exposure concentration and time. Results: The median age (P5-P95) of the exposed group and the control group was 36.5 (24.0-51.0) and 38.0 (24.0-50.0) years, respectively. In the exposed group, the median length of service (P5-P95) was 6.94 (0.97-26.33) years, and the median concentration of TDA in urine was 15.56 (2.28-112.16) ng/ml. The three indexes of lung function, FVC, FEV1, FEV1/FVC and the levels of serum IL-8 and TNF-α were significantly lower than those in the control group (P<0.01). With the increase of exposure concentration and exposure time, the level of serum TNF-α, FVC and FEV1 decreased, and showed a good dose-effect and time-effect relationship (all Ptrend values< 0.05). Serum IL-8 and TNF-α were positively correlated with FVC, FEV1 and FEV1/FVC (all P values<0.01). Conclusion: The levels of serum inflammatory factors IL-8 and TNF-α in worker exposed to TDI are related to lung function indexes, which can be used as early evaluation indexes of respiratory toxicity induced by TDI.
Collapse
|
31
|
Zahid U, Ramachandran P, Alasadi L, Bedi P, Shurin S, Wang JC, Anwer F, Spitalewitz S. Prevalence of acute kidney injury in myeloma patients visiting U.S. emergency departments: A nationwide analysis. J Clin Oncol 2020. [DOI: 10.1200/jco.2020.38.15_suppl.e20548] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
e20548 Background: Patients diagnosed with multiple myeloma (MM) frequently visit emergency departments (ED) with complications, commonly with kidney disease. However, data regarding the prevalence of acute kidney injury (AKI) and its effects on patient outcome, economic burden, length of hospital stay and mortality among these patients are lacking. Methods: From the Nationwide Emergency Department Sample, we obtained 7-year (2010-2016) data of myeloma patients who visited ED. Baseline characteristics of these patients with and without AKI were compared. The multivariable regression model was used to estimate hospital admission, length of stay, healthcare burden and in-hospital mortality in patients with and without AKI. Results: Between 2010-2016, 657,392 adult myeloma patients visited ED at an increased rate from 35 to 45 per 100,000 census population. The prevalence of AKI was 22.5% (n = 147,743) with a stable trend over the study period. AKI was more common in patients with relapsed MM (33.5%) than those in remission (18.6%) or never achieving remission (22.4%) (P < 0.001), male (24.1 vs 20.6% in female, P < 0.001), age ≥65 years (24.1%) vs 18-44 years (12.9%), or 45-64 years (19.3%)(P < 0.001) and urban (23.3%) vs non-urban residents (17.9%)(P < 0.001). The majority patients with AKI were hospitalized (96.5%) compared with those without AKI (69.6%) (P < 0.001). In multivariable analysis, odds of hospitalization was higher in patients with AKI (OR: 8.8, P < 0.001) after adjusting age, gender, co-morbidities and other demographics. Median hospital stay was longer in patients with AKI compared to those without (6 vs 4 days, P < 0.001). Median ED and total hospitalization charges were higher in patients with AKI (ED: $2,057; total: $45,414) vs without AKI (ED: $1,853; total: $29,299) (P < 0.001). In the multivariable adjusted-model, odds of in-hospital mortality was significantly higher in patients not in remission (OR: 1.8), patients with relapse (OR: 2.3), AKI (OR: 2.2), age ≥ 65 years (OR: 1.4), male (OR: 1.1) and urban residents (OR:1.2). Conclusions: In this largest national study of MM patients visiting ED, patients with AKI had higher in-hospital admission, ED and total charges, length of hospital stays, and mortality, both by univariate and multivariate analysis. Prevalence of AKI and mortality were highest in patients with MM relapse.
Collapse
|
32
|
Liu X, Zhao T, Wang JC, Shen H, Wang Q, Xin YH, Wei BB. [Analyses of risk factors for temporarily inhibited parathyroid hormone secretion of postoperative primary hyperparathyroidism]. ZHONGHUA ER BI YAN HOU TOU JING WAI KE ZA ZHI = CHINESE JOURNAL OF OTORHINOLARYNGOLOGY HEAD AND NECK SURGERY 2020; 55:497-500. [PMID: 32842365 DOI: 10.3760/cma.j.cn115330-20191014-00622] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To study relative risk factors for temporarily inhibited parathyroid hormone (PTH) secretion after surgery of primary hyperparathyroidism (PHPT). Methods: Seventy-two cases with PHPT from October 2017 to March 2019 in Beijing Chaoyang Hospital were analyzed retrospectively, including 22 males and 50 females aged from 13 to 83 years old. They were reviewed and divided into a complete inhibition group (24 cases, PTH=0 pg/ml), an incomplete inhibition group (23 cases, 0<PTH<12.4 pg/ml), and a non-inhibition group (25 cases, PTH≥12.4 pg/ml) according to the PTH level on the first day after surgery of PHPT. With the Kruskal-Wallis multi-group rank sum test and the Nemenyi test, preoperative and postoperative biochemical parameters and endocrine indexes, including the preoperative serum levels of calcium, phosphorus, PTH, 25-hydroxyvitamin D, and alkaline phosphatase, as well as the levels of PTH 10 min after focal resection, calcium on the first day after surgery, and PTH on the third day after surgery, were compared among three groups to evaluate potential risk factor for postoperative temporary inhabitation of PTH secretion. The predictive values of various risk factors for postoperative temporary inhibition of PTH secretion were evaluated with ROC curve analysis. Results: Preoperative serum PTH, calcium levels, and serum calcium level on the first day after surgery in the complete inhibition group were higher than those in the non-inhibition group,respectively, with statically significant differences [256.5(141.6,585.3) pg/ml vs. 130.2(92.1,256.6) pg/ml, 2.90(2.69,3.22) mmol/L vs. 2.61(2.50,2.75) mmol/L, 2.23(2.08,2.41) mmol/L vs. 2.12(2.05,2.14) mmol/L, χ(2) were 7.17, 11.90, 8.32, respectively, all P<0.05]. When the preoperative serum calcium level was higher than 2.62 mmol/L (AUC=0.698, 95%CI: 0.57-0.83, P=0.006) or the preoperative PTH level was higher than 115.9 pg/ml (AUC=0.697, 95%CI: 0.58-0.82, P=0.007), patients tended to inhibit completely PTH secretion after operation. Conclusions: Preoperative serum calcium and PTH levels are risk factors for postoperative temporary PTH inhibition in PHPT.
Collapse
|
33
|
Zhang YH, Lin DJ, Xiao MF, Wang JC, Wei Y, Lei ZX, Zeng ZQ, Li L, Li HA, Xiang W. [2019 novel coronavirus infection in a three-month-old baby]. ZHONGHUA ER KE ZA ZHI = CHINESE JOURNAL OF PEDIATRICS 2020; 58:182-184. [PMID: 32135587 DOI: 10.3760/cma.j.issn.0578-1310.2020.03.004] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
|
34
|
Zhang YH, Lin DJ, Xiao MF, Wang JC, Wei Y, Lei ZX, Zeng ZQ, Li L, Li HA, Xiang W. [2019-novel coronavirus infection in a three-month-old baby]. ZHONGHUA ER KE ZA ZHI = CHINESE JOURNAL OF PEDIATRICS 2020; 58:E006. [PMID: 32043842 DOI: 10.3760/cma.j.issn.0578-1310.2020.0006] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
|
35
|
Ramachandran P, Sahni S, Wang JC. De Novo CD5+ Primary Gastrointestinal Diffuse Large B-Cell Lymphoma: Challenges With Treatment and Clinical Course. J Investig Med High Impact Case Rep 2019; 7:2324709619893546. [PMID: 31814435 PMCID: PMC6900610 DOI: 10.1177/2324709619893546] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022] Open
Abstract
The gastrointestinal tract is a common extranodal site for lymphomas. However,
primary gastrointestinal lymphomas are rare. Diffuse large B-cell lymphomas
(DLBCL) are the most commonly encountered type in the gastrointestinal tract.
Most of the DLBCL are CD5 negative. CD5+ DLBCL is very rare and a poor
prognostic subtype of lymphoma. We report a rare case of primary small bowel
CD5+ DLBCL that evolved from being a localized low International Prognostic
Index–scored disease into an advanced and aggressive disease primarily dictated
by the presence of CD5 antigen positivity.
Collapse
|
36
|
Meyers JL, Salvatore JE, Aliev F, Johnson EC, McCutcheon VV, Su J, Kuo SIC, Lai D, Wetherill L, Wang JC, Chan G, Hesselbrock V, Foroud T, Bucholz KK, Edenberg HJ, Dick DM, Porjesz B, Agrawal A. Psychosocial moderation of polygenic risk for cannabis involvement: the role of trauma exposure and frequency of religious service attendance. Transl Psychiatry 2019; 9:269. [PMID: 31636251 PMCID: PMC6803671 DOI: 10.1038/s41398-019-0598-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/17/2018] [Revised: 04/12/2019] [Accepted: 04/29/2019] [Indexed: 12/12/2022] Open
Abstract
Cannabis use and disorders (CUD) are influenced by multiple genetic variants of small effect and by the psychosocial environment. However, this information has not been effectively incorporated into studies of gene-environment interaction (GxE). Polygenic risk scores (PRS) that aggregate the effects of genetic variants can aid in identifying the links between genetic risk and psychosocial factors. Using data from the Pasman et al. GWAS of cannabis use (meta-analysis of data from the International Cannabis Consortium and UK Biobank), we constructed PRS in the Collaborative Study on the Genetics of Alcoholism (COGA) participants of European (N: 7591) and African (N: 3359) ancestry. The primary analyses included only individuals of European ancestry, reflecting the ancestral composition of the discovery GWAS from which the PRS was derived. Secondary analyses included the African ancestry sample. Associations of PRS with cannabis use and DSM-5 CUD symptom count (CUDsx) and interactions with trauma exposure and frequency of religious service attendance were examined. Models were adjusted for sex, birth cohort, genotype array, and ancestry. Robustness models were adjusted for cross-term interactions. Higher PRS were associated with a greater likelihood of cannabis use and with CUDsx among participants of European ancestry (p < 0.05 and p < 0.1 thresholds, respectively). PRS only influenced cannabis use among those exposed to trauma (R2: 0.011 among the trauma exposed vs. R2: 0.002 in unexposed). PRS less consistently influenced cannabis use among those who attend religious services less frequently; PRS × religious service attendance effects were attenuated when cross-term interactions with ancestry and sex were included in the model. Polygenic liability to cannabis use was related to cannabis use and, less robustly, progression to symptoms of CUD. This study provides the first evidence of PRS × trauma for cannabis use and demonstrates that ignoring important aspects of the psychosocial environment may mask genetic influences on polygenic traits.
Collapse
|
37
|
Wang JC, Shi G, Wong C, Gotlieb V, Ramachandran P, Chen H. Quantification of IGF-1 receptor is useful in the differential diagnosis of essential thrombocytosis from reactive thrombocytosis. Eur J Haematol 2019; 103:573-577. [PMID: 31479555 DOI: 10.1111/ejh.13323] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2019] [Revised: 08/29/2019] [Accepted: 08/30/2019] [Indexed: 02/02/2023]
Abstract
BACKGROUND To make a definite diagnosis of essential thrombocytosis (ET) from reactive thrombocytosis (RT), the most reliable criteria are the presence of driver mutations, namely JAK2, CALR, or MPL gene mutations. In the absence of these driver mutations, so-called triple-negative ET, the differential diagnosis could be difficult. Although bone marrow biopsy could be helpful, it may be difficult in some cases, to do gene sequence analysis to identify other clonal marker gene mutations than the driver mutations, as only very few were found. METHODS IGF-1R quantification by flow cytometry in mononuclear cells (MNC) from peripheral blood was performed in 33 patients with ET (untreated or off treatment with hydroxyurea), 28 patients with RT, and 16 normal volunteer controls. RESULTS We found IGF-1R levels were significantly elevated in ET patients compared to RT patients or controls. A cutoff value of 253 was chosen from the logistic regression to predict each patient's group, a value ≥253 meant that a patient belonged to the ET group (sensitivity 96.4% and specificity 68.6%). CONCLUSION We suggest that adding quantification of IGF-1R in blood MNC by flow cytometry is useful in differentiating ET from RT.
Collapse
|
38
|
Chen YP, Wu ZJ, Liu W, Lu JP, Wang JC, Zhu WF, Chen FF, Zhong LH, Chen G. [Clinicopathological characteristics of adult T cell leukemia/lymphoma]. ZHONGHUA BING LI XUE ZA ZHI = CHINESE JOURNAL OF PATHOLOGY 2019; 48:11-16. [PMID: 30641639 DOI: 10.3760/cma.j.issn.0529-5807.2019.01.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the clinical presentation, clinicopathologic features, diagnosis and differential diagnosis of adult T cell leukemia/lymphoma (ATLL). Methods: Four cases of ATLL from Fujian Cancer Hospital between October 2017 and May 2018 were analyzed using hematoxylin-eosin and immunohistochemical stains and polymerase chain reaction (PCR) for HTLV-1 provirus genes. The relevant literature was reviewed. Results: There were two males and two females, age range 38-80 years. All patients were from coastal cities of Fujian province. Clinical presentations including lymphadenopathy, hepatomegaly and splenomegaly were detected in most patients; skin lesion, hypercalcemia and lymphocytosis were also commonly detected.Histologically, there was diffuse effacement of the normal architecture by tumor cells infiltration. The inflammatory background is usually sparse, with scanty eosinophils. The atypical lymphoid cells were typically medium to large sized with pronounced nuclear pleomorphism, irregular nuclei, chromatin clumping and prominent nucleoli. Blast-like cells with transformed nuclei were present in variable proportions. Giant cells with convoluted or cerebriform nuclear contours may be present. Rare cases may be composed predominantly of anaplastic tumor cells. Characteristic "flower cells" with large multi-lobated nuclei can be seen. The tumor cells were strongly positive for CD2, CD3, CD5, CD4 and CD25, but negative for CD7, CD8 and cytotoxic molecules (including TIA-1, Granzyme B and perforin). In three cases, the large transformed cells were positive for CD30. In one case, the anaplastic large cells were diffusely and strongly positive for CD30. All cases were negative for EBER, but positive for HTLV-1 provirus. Conclusions: ATLL is a rare type of T cell lymphoma with unique clinical and pathological features, and should be distinguished from peripheral T cell lymphoma, NOS, ALK negative anaplastic large cell lymphoma and mycosis fungoides. Hypercalcemia, systemic disease, characteristic "flower cells" and specific immunophenotypic profile of CD3(+), CD4(+), CD25(+), and CD7(-) are highly suggestive. However, ATLL can only be confirmed if the presence of HTLV-1 provirus.
Collapse
|
39
|
Zhu L, Jin F, Zhu YQ, Wang JC, Dong KF, Mo WQ, Song JL, Ouyang J. Giant Magneto-Impedance (GMI) Effect in Single-Layer Soft Magnetic Film Under Stress. JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY 2018; 18:8195-8200. [PMID: 30189937 DOI: 10.1166/jnn.2018.15799] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The stress-induced magnetic anisotropy can significantly affect giant magneto-impedance (GMI) effect of the soft magnetic film. This paper is devoted to the GMI effect of the single layer soft magnetic film implied without and with a stress. By simulating a physical model with MATLAB and COMSOL software, the impedance expression of the single layer soft magnetic film and the relation between external magnetic field and magnetic permeability are deduced. We observed that, without a stress, the sensitive region increased firstly and then decreased with the increasing of the excitation current frequency from 1 MHz to 200 MHz. While the film was subjected to the stress in the direction of the current with one end stressed, the stress on the film was gradually reduced from stressed end to free end. Also, the impedance change rate of the film changed when the stress was added, which is similar to the effect of adding a bias magnetic field on the film. More importantly, the addition of stress σ can induce the bias of the GMI measurement range and improve its sensitivity near zero magnetic fields. This may provide a new way for designing a GMI sensor with higher sensitivity and adjustable measurement range.
Collapse
|
40
|
Ramachandran P, Morcus R, Tahir M, Onukogu I, Spinowitz B, Wang JC. Alectinib (Alecensa)-induced reversible grade IV nephrotoxicity: a case report and review of the literature. J Med Case Rep 2018; 12:303. [PMID: 30336782 PMCID: PMC6194643 DOI: 10.1186/s13256-018-1849-y] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2018] [Accepted: 09/13/2018] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Lung cancer is among the top causes of cancer-related mortality in men and is the second most common cancer after breast cancer in women. There are approximately 234,030 new cases of lung cancer and 154,050 deaths from lung cancer in 2018 as per the latest American Cancer Society's report. Alectinib, a more potent orally active tyrosine kinase inhibitor which was approved by the US Food & Drug Administration for anaplastic lymphoma kinase-positive lung adenocarcinoma, has been shown to have a reasonable safety profile when compared with other anaplastic lymphoma kinase-targeted therapy. As per research studies, grade 1 or 2 renal impairment has been reported but grade 4 renal toxicity due to alectinib has not been reported so far. We report a case of acute renal failure caused by alectinib which necessitated emergency dialysis. This is the first case report describing the severe renal toxicity of alectinib. CASE PRESENTATION We describe a case of 72-year-old Taiwanese man diagnosed with stage IV anaplastic lymphoma kinase-positive adenocarcinoma of the lung initially treated with crizotinib for over a year, which was switched to alectinib due to disease progression with brain metastasis. Within 6 weeks of starting alectinib, he developed acute renal failure needing emergency dialysis support. His renal failure was secondary to acute tubular necrosis and had a complete reversal within 7-10 days on withdrawing the medication. When he was re-challenged with alectinib, his creatinine started to worsen again which confirmed the renal toxicity of alectinib. CONCLUSIONS This case emphasizes the uncommon adverse effect of the anaplastic lymphoma kinase-targeted therapy alectinib causing acute renal failure manifesting as acute tubular necrosis. Recognition of alectinib nephropathy requires a thorough drug history and knowledge of risk factors that lessen its margin of safety at therapeutic ingestions. Frequent monitoring of renal functions and early nephrology referral significantly reduce the mortality and morbidity of these patients.
Collapse
|
41
|
Liaukovich M, Wu S, Yoon S, Schaffer J, Wang JC. Hepatocellular carcinoma presenting as spinal cord compression in Native Americans with controlled hepatitis C: two case reports. J Med Case Rep 2018; 12:282. [PMID: 30268151 PMCID: PMC6164177 DOI: 10.1186/s13256-018-1807-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2018] [Accepted: 08/17/2018] [Indexed: 12/23/2022] Open
Abstract
Background Hepatocellular carcinoma is a common malignancy in Asia. It is associated with chronic hepatitis B virus or hepatitis C virus infection and alcoholic hepatitis. Commonly, the tumor metastasizes to the lungs, regional lymph nodes, and bone. Recently, the incidence of metastatic spinal cord compression caused by primary hepatocellular carcinoma has been reported more frequently due to improved diagnosis and therapeutic modalities. The presentation of primary hepatocellular carcinoma with spinal cord compression is very rare. To the best of our knowledge, there are only 33 such cases published to date. The majority of cases involve patients of Asian origin and are associated with hepatitis B infection. Case presentation We report consecutive cases of two Native American (American Indian) patients (a 64-year-old man and a 70-year-old man) who presented with symptoms of spinal cord compression due to metastatic spread of hepatocellular carcinoma and were associated with hepatitis C infection. In one of these cases, the hepatitis C infection had been successfully controlled (hepatitis C titers were undetectable for 1 year before he presented with spinal cord compression). This occurrence in a Native American with a controlled hepatitis C infection has not been reported previously. Conclusions Primary care physicians, oncologists, and gastroenterologists should be cognizant of this unusual presentation of hepatocellular carcinoma in a Native American. Such knowledge may help improve early diagnosis and survival.
Collapse
|
42
|
Song QP, Tian W, He D, Han X, Zhang N, Wang JC, Li ZC. [Long-term efficacy of cervical artificial disc replacement for cervical degenerative diseases]. ZHONGHUA YI XUE ZA ZHI 2018; 98:1358-1363. [PMID: 29764039 DOI: 10.3760/cma.j.issn.0376-2491.2018.17.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To evaluate the long-term efficacy of cervical artificial disc replacement for patients with cervical disc herniation and degenerative cervical canal stenosis. Methods: Total of sixty-eight patients underwent single-level Bryan artificial disc replacement in Beijing Jishuitan Hospital from December 2003 to December 2007 with a minimum 10-year follow-up were retrospectively analyzed. There were 43 males and 25 females with a mean age of (46±8) years. According to preoperative CT and MRI, the patients were divided into two groups: 27 patients in cervical disc herniation group and 41 patients in degenerative cervical canal stenosis group. The evaluation indexes before surgery and at last follow-up were compared between two groups. The clinical indexes included Japanese Orthopaedic Association (JOA) score, neck disability index (NDI) and Odom's grade; and the radiological indexes included the global and segmental range of motion (ROM), Cobb's angle at operated level. The continuous variable data were analyzed by independent sample t test. Results: In cervical disc herniation group, the improvement rate of JOA score was 83%±22%, NDI% decreased by 14%±9%, and Odom's grade was excellent in 17 patients, good in 10 patients. In degenerative cervical canal stenosis group, the improvement rate of JOA was 68%±34%, NDI% decreased by 11%±7%, and Odom's grade was excellent in 19 patients, good in 18 patients, fair in 4 patients. The segmental ROM was 10°±4° and 7°±6° in cervical disc herniation and degenerative cervical canal stenosis group at last follow-up (t=2.284, P=0.026). The global ROM was 50°±9° and 44°±14° in cervical disc herniation and degenerative cervical canal stenosis group at last follow-up (t=2.112, P=0.038). Conclusions: Cervical artificial disc replacement has a favorable long-term efficacy in treating cervical degenerative diseases. The postoperative global and segmental ROM in patients with cervical disc herniation are better than those in patients with degenerative cervical canal stenosis.
Collapse
|
43
|
Huang RF, Zhang WY, Liu WP, Zhao S, Ye YX, Sun H, Gao LM, Wang JC, Yang QP. [Diagnostic significance of lymph node core needle biopsy for lymphoproliferative disease: a clinicopathologic study of 1 013 cases]. ZHONGHUA BING LI XUE ZA ZHI = CHINESE JOURNAL OF PATHOLOGY 2018; 47:19-24. [PMID: 29325246 DOI: 10.3760/cma.j.issn.0529-5807.2018.01.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Objective: To study the clinicopathologic features of lymphoproliferative disease by lymph node core needle biopsy(CNB)and to evaluate the diagnostic significance of CNB for lymphoproliferative disease. Methods: The annual distribution, entity constitute, clinical finding, gross feature, morphologic change, affiliate study and repeat biopsy diagnosis of 1 013 cases of lymph node CNB diagnosed at West China Hospital of Sichuan University from January 2009 to December 2015 were investigated. Results: (1) Proportion of lymph node CNB in total amount of biopsy specimens increased from 0.2% in 2009 to 0.8% in 2015.(2) The study cohort included 471 lymphomas, 12 atypical lymphoid hyperplasia (ALH), 136 suspected lymphomas, 372 benign lesions, and 22 cases of descriptive diagnoses. The most common types were diffuse large B cell lymphoma and T-lymphoblastic lymphoma. (3) Majority of patients were adolescents and children younger than 20 years or the elderly older than 60 years. 53.1% CNB tumor specimen consisted of ≥4 tissue cores and 40.5% were >2 cm in length. (4) 104 CNB cases with previous history of excision biopsy was included 45 carcinomas(no metastatic carcinoma was found), 32 lymphomas for treatment observation.1/14 suspicious lymphomas, 1/1 ALH and 3/22 cases benign lesions were diagnosed as lymphoma by repeat biopsy respectively. (5) 217 CNB cases were diagnosed as lymphoma by subsequent CNB (70), or subsequent excision biopsy (147) including 78.5%(73/93) suspected lymphomas, 5/7 ALH and 32.3%(20/62)benign lesions. Conclusions: Lymph node CNB has certain clinical indications, although limited for the diagnosis of lymphoproliferative disorders. Suspected lymphomas and ALH diagnosed by CNB should be followed by repeat tissue biopsy. For the benign lesions by CNB it does not rule out additional biopsy to further investigate the lesion.
Collapse
|
44
|
Meyers JL, Zhang J, Wang JC, Su J, Kuo SI, Kapoor M, Wetherill L, Bertelsen S, Lai D, Salvatore JE, Kamarajan C, Chorlian D, Agrawal A, Almasy L, Bauer L, Bucholz KK, Chan G, Hesselbrock V, Koganti L, Kramer J, Kuperman S, Manz N, Pandey A, Seay M, Scott D, Taylor RE, Dick DM, Edenberg HJ, Goate A, Foroud T, Porjesz B. An endophenotype approach to the genetics of alcohol dependence: a genome wide association study of fast beta EEG in families of African ancestry. Mol Psychiatry 2017; 22:1767-1775. [PMID: 28070124 PMCID: PMC5503794 DOI: 10.1038/mp.2016.239] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/17/2016] [Revised: 09/24/2016] [Accepted: 10/27/2016] [Indexed: 01/16/2023]
Abstract
Fast beta (20-28 Hz) electroencephalogram (EEG) oscillatory activity may be a useful endophenotype for studying the genetics of disorders characterized by neural hyperexcitability, including substance use disorders (SUDs). However, the genetic underpinnings of fast beta EEG have not previously been studied in a population of African-American ancestry (AA). In a sample of 2382 AA individuals from 482 families drawn from the Collaborative Study on the Genetics of Alcoholism (COGA), we performed a genome-wide association study (GWAS) on resting-state fast beta EEG power. To further characterize our genetic findings, we examined the functional and clinical/behavioral significance of GWAS variants. Ten correlated single-nucleotide polymorphisms (SNPs) (r2>0.9) located in an intergenic region on chromosome 3q26 were associated with fast beta EEG power at P<5 × 10-8. The most significantly associated SNP, rs11720469 (β: -0.124; P<4.5 × 10-9), is also an expression quantitative trait locus for BCHE (butyrylcholinesterase), expressed in thalamus tissue. Four of the genome-wide SNPs were also associated with Diagnostic and Statistical Manual of Mental Disorders Alcohol Dependence in COGA AA families, and two (rs13093097, rs7428372) were replicated in an independent AA sample (Gelernter et al.). Analyses in the AA adolescent/young adult (offspring from COGA families) subsample indicated association of rs11720469 with heavy episodic drinking (frequency of consuming 5+ drinks within 24 h). Converging findings presented in this study provide support for the role of genetic variants within 3q26 in neural and behavioral disinhibition. These novel genetic findings highlight the importance of including AA populations in genetics research on SUDs and the utility of the endophenotype approach in enhancing our understanding of mechanisms underlying addiction susceptibility.
Collapse
|
45
|
Wang JC, Jin XF, Weng SX, Xu C, Gan MF. [Gastric glomus tumors expressing synaptophysin: clinicopathologic and immunohistochemical analyses]. ZHONGHUA BING LI XUE ZA ZHI = CHINESE JOURNAL OF PATHOLOGY 2017; 46:756-759. [PMID: 29136687 DOI: 10.3760/cma.j.issn.0529-5807.2017.11.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the clincopathologic and immunohistochemical features of gastric glomus tumors and their differences from gastric neuroendocrine neoplasms. Methods: Six cases of gastric glomus tumors, 8 cases of glomus tumors in other sites and 7 cases of gastric neuroendocrine neoplasms were collected from the Department of Pathology, Taizhou Hospital. The clinicopathological and immunohistochemical characteristics of these tumors were analyzed retrospectively. Results: The gastric glomus tumors were located in the muscularis propria of the antrum and most cases strongly expressed synaptophysin (5/6). However, no synaptophysin expression was seen in glomus tumors of other organs.Most gastric neuroendocrine neoplasms were located in the mucosa or submucosa of the fundus and corpus. In addition to the strong expression of synaptophysin (7/7), CgA (6/7) and CD56(5/7) were strongly positive, although SMA was negative. Conclusions: Gastric glomus tumors and neuroendocrine neoplasms have similar morphological characteristics and both show strongly expression of synaptophysin. However, the location and immunohistochemical characteristics of gastric glomus tumors differ from those of the neuroendocrine neoplasms.
Collapse
|
46
|
Xu HL, Wang JC, Zhang Y, Liu SL, He WW, Qin XT, Cao GQ, Yang YJ, Zhuge QC, Chen WJ. [CT perfusion analysis on the association of permeability surface with hematoma and edema volume in acute spontaneous putaminal and thalamic hematoma]. ZHONGHUA YI XUE ZA ZHI 2017; 97:2898-2902. [PMID: 29050158 DOI: 10.3760/cma.j.issn.0376-2491.2017.37.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Objective: To discuss the correlation of permeability surface (PS) with hematoma and edema volume in acute spontaneous putaminal and thalamic hematoma using CT perfusion imaging. Methods: A total of 48 acute spontaneous putaminal and thalamic hemorrhage patients were enrolled in this study during October 2015 and December 2016 at the First Affiliated Hospital of Wenzhou Medical University. At the image slice with maximum size of hematoma, PS was measured by drawing various regions of interest (ROI) including"hot spots", perihematomal regions, outward regions, hemisphere regions and contralateral mirror regions. The relative PS (rPS) was calculated as the ratio of ipsilateral to contralateral PS value in each ROI. Hematoma and edema volumes were traced and obtained with commercial software. Results: The"hot spots"PS ((2.8±1.5) ml·100 g(-1)·min(-1)) and perihematomal PS ((2.1±1.4) ml·100 g(-1)·min(-1)) were both significantly higher than the PS of the contralateral mirror regions ((1.1±0.5) ml·100 g(-1)·min(-1)) (P<0.001). There was no significant difference in outward regions PS and contralateral mirror regions PS (P>0.05), nor in hemisphere regions PS and contralateral mirror regions PS (P>0.05). There was no significant difference in"hot spots"rPS and perihematomal rPS (P=0.218). The"hot spots"rPS and Perihematomal rPS were both higher than the rPS of the outward and hemisphere regions (P<0.01). There was no significant difference in the outward and hemisphere regions (P<0.01). The median hematoma volume was 12.63 ml and the median edema volume was 12.36 ml. The edema volume had a positive association with the hematoma volume(r=0.799, P<0.001) and perihematomal PS(r=0.465, P=0.001). Perihematomal PS had a positive association with the hematoma volume (r=0.386, P=0.007). Conclusion: The damage of blood-brain barrier around acute spontaneous hematoma can be measured via CT perfusion imaging. Perihematomal PS was associated with the hematoma and edema volume.
Collapse
|
47
|
Ke LQ, Huang J, Liu LL, Huang MJ, Zhang Q, Wang JC, Zhang W. [Differential expression and clinical significance of calretinin in total colonic aganglionosis]. ZHONGHUA BING LI XUE ZA ZHI = CHINESE JOURNAL OF PATHOLOGY 2017; 46:623-628. [PMID: 28910873 DOI: 10.3760/cma.j.issn.0529-5807.2017.09.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To evaluate the differential calretinin immunostaining in different segments of total colonic aganglionosis and its utility in the diagnosis. Methods: Nine specimens including ileum and colon segments were obtained from 9 patients with total colonic aganglionosis (TCA), from 2010 to 2016 year, in Wuhan Children's Hospital, Tongji Medical College, Huazhong University of Science and Technology. Another 9 ganglionic specimens including the same segments from patients with non-Hirschsprung disease (non-HD) patients were collected as control. All cases were immunostained with calretinin. The patterns of calretinin immunostaining were observed, and morphometric analysis of each sample was performed by image analysis program (Image-Pro-Plus). The mean absorbance was evaluated by calculating the areas of the lamina propria occupied by the positively stained area of the calretinin at high power field. Results: The same pattern of calretinin immunostaining was seen in ganglionic ileum and ganglionic colon segments, with staining seen in intrinsic nerves fibers (INF), and in granular aggregates in the lamina propria and muscularis mucosae. There was no significant difference in the numbers of calretinin-positive INF from the ganglionic segments. In contrast, the number of calretinin-positive INF and granular aggregates in aganglionic segments were significantly lower than those in the ganglionic group (P<0.01). In the ileum transitional zone, scattered calretinin staining was observed, and the amount of calretinin-positive INF was significantly lower than those in the proximal segment of ganlionic ileum (P<0.01). Conclusions: Since there is significant different expression of calretinin among the different segments from TCA, calretinin immunostaining has potential value in detecting TCA. It could be an important adjunctive method in detecting TCA in the future.
Collapse
|
48
|
Sindhu H, Chen R, Chen H, Wong J, Chaudhry R, Xu Y, Wang JC. Gamma-delta (γδ) T-cell lymphoma - another case unclassifiable by World Health Organization classification: a case report. J Med Case Rep 2017. [PMID: 28625163 PMCID: PMC5474878 DOI: 10.1186/s13256-017-1312-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022] Open
Abstract
Background We present a case of gamma-delta T-cell lymphoma that does not fit the current World Health Organization classifications. Case presentation A 74-year-old Caribbean-American woman presented with lymphocytosis, pruritus, and non-drenching night sweats. Bone marrow and peripheral blood analyses both confirmed the diagnosis of gamma-delta T-cell lymphoma. An axillary lymph node biopsy was negative for lymphoma. Clinically absent hepatosplenomegaly and skin lesions with biopsy-proven gamma-delta T-cell lymphoma suggest that she is unclassifiable within the current classification system. Conclusions We believe this is a case of not otherwise specified gamma-delta T-cell lymphoma. Accumulation of these rare not otherwise specified cases will be important for future classification which further defines the biology of this disease.
Collapse
|
49
|
Tan B, Abdelmalek C, O'Donnell JE, Toltaku T, Chaudhry R, Wang JC, Gotlieb V. A Case Report of Primary Nasal Natural Killer (NK)/T-Cell Lymphoma in an African American Patient Presenting with Hemophagocytic Syndrome. AMERICAN JOURNAL OF CASE REPORTS 2017; 18:160-165. [PMID: 28193996 PMCID: PMC5319307 DOI: 10.12659/ajcr.900995] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Patient: Male, 55 Final Diagnosis: Primary NK-T cell lymphoma • nasal type Symptoms: Fever • nasal bleeding • nasal mass • weight loss Medication: — Clinical Procedure: Chemotherapy×2 cycles • radiation therap Specialty: Oncology
Collapse
|
50
|
Liu SL, Wang Y, Zhang Y, Xu HL, Wang JC, He WW, Qin XT, Cao GQ, Yang YJ, Zhuge QC, Chen WJ. [Analysis of CT perfusion imaging in chronic cerebral circulatory insufficiency and its relationship with crossed cerebellar diaschisis]. ZHONGHUA YI XUE ZA ZHI 2017; 97:359-364. [PMID: 28219193 DOI: 10.3760/cma.j.issn.0376-2491.2017.05.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Objective: To investigate the change of cerebral microcirculation of chronic cerebral circulation insufficiency(CCCI) patients and the relationship between CCCI and crossed cerebellar diaschisis(CCD)by using 320-detector row of low-dose volume CT perfusion imaging. Methods: A total of 158 patients (103 males, 55 females, from 45 to 82 years old, the mean age was 62.9) with symptoms of CCCI were admitted to the First Affiliated Hospital of Wenzhou Medical University from June 2013 to January 2016. Low-dose CTP imaging of whole brain was performed to them using 320-detector row volume CT scanner. The perfusion parameters such as cerebral blood flow(CBF), cerebral blood volume(CBV), mean transit time(MTT), time to peak(TTP) and DLY in both cerebral blood supply areas and cerebellum were got, so were the 4-dimensional CTA images, and rCBF, rCBV, rMTT and rTTP were calculated by ipsilateral/contralateral value. Comparative t-test and independent t-test were applied to analyzing these parameters quantitatively.Chi-square test and Logistic regression model were applied to analyzing the related clinical risk factors. Results: (1) All 108 patients in CCCI group showed asymmetric perfusion within two cerebral hemispheres in CTP images. The CBF, CBV of diseased side were lower than the contralateral mirror area (t(CBF)=-12.89, t(CBV)=-7.031, P(CBF, CBV)<0.001); the MTT of the diseased side was shorter than the contralateral mirror area (t(MTT) =13.310, P(MTT)<0.001); the TTP of the diseased side was longer than the contralateral mirror area (t(TTP)=-4.012, P(TTP)<0.001). The rCBF and rCBV of CCCI group were lower than that in non-CCCI group (t(rCBF)=3.079, t(rCBV)=2.760, P(rCBF, rCBV)<0.01), while the rTTP of CCCI group was longer than that in non-CCCI group (t(rTTP)=4.846, P(rTTP)<0.001). (2)The results of Chi-square test showed that the differences of gender (χ(2)=4.036, P=0.045), hyperlipidemia (χ(2)=7.687, P=0.006), as well as smoking (χ(2)=11.868, P=0.001) had statistical significance between CCCI group and non-CCCI group.Multi-factor Logistic regression analysis showed that hyperlipidemia (OR value=3.736, P=0.016) and smoking (OR value=4.641, P=0.01) were the risk factors of CCCI, while gender had no relationship with it.(3)The incidence of CCD was 18.5% in the CCCI group, and at the same time, the supratentorial corresponding blood supply areas were classified.A total of 10(34.5%) cases were in blood supply area of posterior cerebral artery, 6(20.7%) cases were in blood supply area of middle cerebral artery, 12(41.4%) cases were of anterior cerebral artery, while only 1(3.5%) case was of basal ganglia, in which 4 cases were in blood supply area of posterior cerebral artery, another 4 cases were middle cerebral artery, 7 cases were of anterior cerebral artery and no case of basal ganglia respectively leading CCD alone. Conclusions: CTP could display the microcirculation situation of abnormal brain tissue perfusion area intuitively and quantitatively. Additionally, it could reflect the degree of relationship between cerebral several blood supply areas and cerebellum.
Collapse
|