26
|
Wong B, Summer S, Horn P, Rutter M, Tian C, Rybalsky I, Shellenbarger K, Kalkwarf H. DMD – CLINICAL CARE. Neuromuscul Disord 2021. [DOI: 10.1016/j.nmd.2021.07.126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
27
|
Xue H, Li C, Cui L, Tian C, Li S, Wang Z, Liu C, Ge Q. M-BLUE protocol for coronavirus disease-19 (COVID-19) patients: interobserver variability and correlation with disease severity. Clin Radiol 2021; 76:379-383. [PMID: 33663912 PMCID: PMC7888246 DOI: 10.1016/j.crad.2021.02.003] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Accepted: 02/04/2021] [Indexed: 12/13/2022]
Abstract
AIM To retrospectively evaluate the interobserver variability of intensive care unit (ICU) practitioners and radiologists who used the M-BLUE (modified bedside lung ultrasound in emergency) protocol to assess coronavirus disease-19 (COVID-19) patients, and to determine the correlation between total M-BLUE protocol score and three different scoring systems reflecting disease severity. MATERIALS AND METHODS Institutional review board approval was obtained and informed consent was not required. Ninety-six lung ultrasonography (LUS) examinations were performed using the M-BLUE protocol in 79 consecutive COVID-19 patients. Two ICU practitioners and three radiologists reviewed video clips of the LUS of eight different regions in each lung retrospectively. Each observer, who was blind to the patient information, described each clip with M-BLUE terminology and assigned a corresponding score. Interobserver variability was assessed using intraclass correlation coefficient. Spearman's correlation coefficient analysis (R-value) was used to assess the correlation between the total score of the eight video clips and disease severity. RESULTS For different LUS signs, fair to good agreement was obtained (ICC = 0.601, 0.339, 0.334, and 0.557 for 0-3 points respectively). The overall interobserver variability was good for both the five different readers and consensus opinions (ICC = 0.618 and 0.607, respectively). There were good correlations between total LUS score and scores from three systems reflecting disease severity (R=0.394-0.660, p<0.01). CONCLUSION In conclusion, interobserver agreement for different signs and total scores in LUS is good and justifies its use in patients with COVID-19. The total scores of LUS are useful to indicate disease severity.
Collapse
|
28
|
Lu Z, Cao H, Liu D, Zheng Y, Tian C, Liu S, Quan J, Shi L, Liu J, Yu L. Optimal combination of anti-inflammatory components from Chinese medicinal formula Liang-Ge-San. JOURNAL OF ETHNOPHARMACOLOGY 2021; 269:113747. [PMID: 33359185 DOI: 10.1016/j.jep.2020.113747] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/14/2020] [Revised: 12/11/2020] [Accepted: 12/19/2020] [Indexed: 06/12/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Liang-Ge-San (LGS), a traditional Chinese medicine (TCM) formula, is usually used in acute inflammatory diseases in China. AIM OF THE STUDY This study aims to detect the optimal combination of anti-inflammatory components from LGS. MATERIALS AND METHODS Four mainly representative components (phillyrin, emodin, baicalin, and liquiritin) from LGS were chosen. The optimal combination was investigated by orthogonal design study. Zebrafish inflammation model was established by lipopolysaccharide (LPS)-yolk microinjection, and then the anti-inflammatory activities of different combinations were determined by survival analysis, changes on inflammatory cells infiltration, the MyD88/NF-κB and MAPK pathways and inflammatory cytokines production. RESULTS The different combinations of bioactive ingredients from LGS significantly protected zebrafish from LPS-induced inflammation, as evidenced by decreased recruitment of macrophages and neutrophils, inhibition of the MyD88/NF-κB and MAPK pathways and down-regulation of TNF-α and IL-6. Among them, the combination group 8 most significantly protected against LPS. The combination of group 8 is: 0.1 μM of emodin, 2 μM of baicalin, 20 μM of phillyrin and 12.5 μM of liquiritin. CONCLUSION The optimized combination group 8 exerts the most significant anti-inflammatory activity by inhibiting the recruitment of inflammatory cells, activation of the MyD88/NF-κB and MAPK pathways and the secretion of pro-inflammatory cytokines. This present study provides pharmacological evidences for the further development of new modern Chinese drug from LGS to treat acute inflammatory diseases, but indicated the use of zebrafish in the screening of components from formulas.
Collapse
|
29
|
Zheng Y, Tian C, Fan C, Xu N, Xiao J, Zhao X, Lu Z, Cao H, Liu J, Yu L. Sheng-Mai Yin exerts anti-inflammatory effects on RAW 264.7 cells and zebrafish. JOURNAL OF ETHNOPHARMACOLOGY 2021; 267:113497. [PMID: 33091492 DOI: 10.1016/j.jep.2020.113497] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2019] [Revised: 10/12/2020] [Accepted: 10/15/2020] [Indexed: 06/11/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Sheng-Mai Yin (SMY), a famous traditional Chinese medicine formula, has been commonly used in China for centuries to treat various diseases, such as inflammation-related diseases. However, the anti-inflammatory activity of SMY and its potential mechanisms still have not yet been clearly understood. AIM OF THE STUDY In this study, we aimed to determine the anti-inflammatory effect of SMY and explore its underlying mechanisms both on RAW 264.7 cells and zebrafish. MATERIALS AND METHODS The levels of pro-inflammatory cytokines IL-6 and TNF-α secreted by RAW 264.7 cells were measured by ELISA. The protein expressions of IκBα, p-IκBα (Ser32), STAT3 and p-STAT3 (Tyr705) were determined by Western blotting. And the nuclear translocation of NF-κB p65 in LPS-induced RAW 264.7 macrophage cells was detected by confocal microscopy. Moreover, the in vivo anti-inflammatory effect of SMY and its potential mechanisms were further investigated by survival analysis, hematoxylin-eosin staining (H&E), observation of neutrophil migration and quantitative real-time PCR (qRT-PCR) analysis in zebrafish inflammatory models. RESULTS SMY reduced the release of IL-6 and TNF-α, inhibited the phosphorylation of IκBα and STAT3 as well as the nuclear translocation of NF-κB p65 in LPS-induced RAW 264.7 cells. Furthermore, the increased survival, decreased infiltration of inflammatory cells and the attenuated migration of neutrophils together suggested the in vivo anti-inflammatory effects of SMY. More importantly, SMY reduced the gene expressions of pro-inflammatory cytokines and suppressed LPS-induced up-regulation of NF-κB, IκBα and STAT3 in zebrafish inflammatory models. CONCLUSION SMY exerts significant anti-inflammatory effects with a potential mechanism of inhibiting the NF-κB and STAT3 signal pathways. Our findings suggest a scientific rationale of SMY to treat inflammatory diseases in clinic.
Collapse
|
30
|
Tian C, Liu L, Zheng M, Ye Z, Chen R, Lan X. MiR-503 Contributes to Glucocorticoid Sensitivity in Acute Lymphoblastic Leukaemia via Targeting WNT3A. Folia Biol (Praha) 2021; 67:199-207. [PMID: 35439853] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Abnormal accumulation of lymphoblasts in the blood and bone marrow is the main characteristic of acute lymphoblastic leukaemia (ALL). Glucocorticoids are effective drugs for ALL, while glucocorticoid resistance is an obstacle to ALL therapy. MicroRNAs (miRNAs) are implicated in the drug resistance and modulate the response of ALL to glucocorticoids. The role of miR-503 in glucocorticoid sensitivity of ALL was investigated in this study. Firstly, T-leukaemic cells were isolated from patients with ALL. The human ALL cell line (CCRF/CEM) was incubated with dexamethasone to establish a glucocorticoid- resistant ALL cell line (CCRF/CEM-R). Data from MTT showed that IC50 (50% inhibitory concentration) of dexamethasone in T-leukaemic cells isolated from glucocorticoid-resistant ALL patients or CCRF/CEM-R was increased compared with IC50 in T-leukaemic cells isolated from glucocorticoid- sensitive ALL patients or CCRF/CEM. MiR- 503 was down-regulated in glucocorticoid-resistant leukaemic cells and CCRF/CEM-R. Secondly, overexpression of miR-503 sensitized CCRF/CEM-R to dexamethasone. Moreover, over-expression of miR- 503 also promoted the sensitivity of ALL cells to dexamethasone. Thirdly, miR-503 bound to WNT3A mRNA and negatively regulated the expression of WNT3A. Over-expression of miR-503 reduced protein expression of nuclear β-catenin, and over-expression of WNT3A attenuated the miR-503 overexpression- induced decrease in nuclear β-catenin. Lastly, the over-expression of miR-503-induced increased sensitivity of ALL-resistant cells and CCRF/ CEM-R to dexamethasone was attenuated by overexpression of WNT3A. In conclusion, miR-503 targeted WNT3A mRNA to sensitize ALL cells to glucocorticoids through inactivation of the Wnt/β-catenin pathway.
Collapse
|
31
|
Zheng Y, Liu S, Fan C, Zeng H, Huang H, Tian C, Lu Z, Cao H, Liu J, Yu L. Holistic quality evaluation of Qingwen Baidu Decoction and its anti-inflammatory effects. JOURNAL OF ETHNOPHARMACOLOGY 2020; 263:113145. [PMID: 32730890 DOI: 10.1016/j.jep.2020.113145] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/03/2019] [Revised: 06/15/2020] [Accepted: 06/30/2020] [Indexed: 06/11/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Qingwen Baidu Decoction (QBD), a famous traditional Chinese medicine prescription with heat-clearing and detoxifying efficacies, is widely used in the treatment of inflammatory diseases. However, due to lack of holistic quality evaluation research, the further study on the detailed molecular mechanisms of action are still insufficient. AIM OF THE STUDY This study aimed to evaluate the overall quality of QBD and to explore the anti-inflammatory effects and associated intracellular signaling pathways. MATERIALS AND METHODS a comprehensive method of chemical fingerprint analysis and simultaneous multi-component quantification was firstly developed by high performance liquid chromatography with diode array detector (HPLC-DAD). Similarity analysis, principal component analysis and hierarchical cluster analysis with heatmap were also applied to screen out the markers components in QBD samples. Moreover, its anti-inflammatory effects and mechanisms were further investigated by survival analysis, hematoxylin-eosin staining (H&E), neutrophil observation, quantitative real-time PCR analysis (qRT-PCR), Western blotting and confocal microscopy. RESULTS Twenty-one characteristic peaks from 11 herbs were chemically identified in the chromatographic fingerprint. Fifteen quantitative markers from 11 herbs, such as baicalin, wogonoside, geniposidic acid, oxypaeoniflora and so on, were screened out with the aid of chemometrics to further quantitatively assess the quality of QBD. The results of survival analysis, H&E and neutrophil observation in zebrafish inflammatory models consistently showed that QBD exerts potent anti-inflammatory effects in a dose-dependent manner. Additionally, QBD inhibited the activation of NF-κB and STAT3 signal pathways in LPS-induced zebrafish and RAW 264.7 macrophage cells. CONCLUSION Collectively, our investigations firstly described the chemical profile of QBD and its possible mechanism of anti-inflammation, which provides a preferred strategy for monitoring the overall quality of QBD and supports its clinical application in treating inflammation-related diseases.
Collapse
|
32
|
Nasomyont N, Keefe C, Tian C, Hornung L, Khoury J, Tilden JC, Hochwalt P, Jackson E, Rybalsky I, Wong BL, Rutter MM. Safety and efficacy of teriparatide treatment for severe osteoporosis in patients with Duchenne muscular dystrophy. Osteoporos Int 2020; 31:2449-2459. [PMID: 32676823 DOI: 10.1007/s00198-020-05549-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/02/2020] [Accepted: 07/08/2020] [Indexed: 01/07/2023]
Abstract
UNLABELLED Osteoporosis is a major concern in patients with Duchenne muscular dystrophy. In this novel study of teriparatide treatment in 6 patients with severe osteoporosis, bone health (fractures, vertebral morphometry, and DXA) remained stable, with no adverse events. These findings will help inform future osteoporosis research in this challenging population. INTRODUCTION Despite standard therapy with vitamin D and bisphosphonates (BP), many patients with Duchenne muscular dystrophy (DMD) continue to sustain fragility fractures due to long-term glucocorticoid treatment and limited mobility. We aimed to evaluate the safety and efficacy of teriparatide for the treatment of severe osteoporosis in adolescent and young adult patients with DMD. METHODS We prospectively treated 6 patients with DMD who had severe osteoporosis with teriparatide 20 mcg subcutaneously daily for 1-2 years. Inclusion criteria were long-term glucocorticoid therapy, and severe osteoporosis despite treatment with BP, or intolerance to BP. We examined long bone and vertebral fracture outcomes, including vertebral morphometry measures, bone mineral density and content, bone formation markers, safety indices, and adverse events. RESULTS The mean age at teriparatide start was 17.9 years (range 13.9-22.1 years). All 6 patients were on daily glucocorticoids (mean ± SD; duration 10.9 ± 2.5 years) and 5 were non-ambulatory. Five patients had been treated with BP for 7.9 ± 4.2 years. All had vertebral and a history of long bone fragility fractures at baseline. Vertebral heights and Genant fracture grading remained stable. Long bone fracture rate appeared to decrease (from 0.84/year to 0.09/year); one patient sustained a long bone fracture at 6 months of treatment. Trajectories for change in bone mineral density and content were not different post- vs. pre-teriparatide. Procollagen type 1 amino-terminal propeptide (P1NP) increased, while laboratory safety indices remained stable and non-concerning. No adverse events were observed. CONCLUSION In six patients with DMD treated with teriparatide for severe osteoporosis, we observed stable bone health and modest increases in P1NP, without safety concerns. Further studies are needed to better understand teriparatide efficacy for treatment of osteoporosis in patients with DMD.
Collapse
|
33
|
He Z, Xu C, Chen G, Wang J, Zhang X, Wang P, Ma T, Zhang Y, Tian C, Chen Y, Zou M, Han Y, Wang L, Ma S, Chen H, Wu Y, Wu X, Yang S, Gao Y, Wang Q. 394P Apatinib plus etoposide capsules as third-line or further-line treatment for extensive stage small cell lung cancer patients: A multicenter, single arm, phase II clinical trial. Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.10.388] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
|
34
|
Cousins A, Tian C, Richardson M, Chan J, Powell M, Hamilton C, Annunziata C, Chappell N, Maxwell G, Casablanca Y, Darcy K. The survival advantage of adjuvant chemoradiotherapy in surgically managed patients with FIGO stages I-III uterine carcinosarcoma treated in Commission on Cancer®-accredited facilities. Gynecol Oncol 2020. [DOI: 10.1016/j.ygyno.2020.05.324] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
35
|
Ulm E, Nagaraj C, Dyer L, Sund K, Tian C. DMD – BIOMARKERS & OUTCOME MEASURES. Neuromuscul Disord 2020. [DOI: 10.1016/j.nmd.2020.08.130] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
36
|
Casablanca Y, Tian C, Powell M, Winterhoff B, Chan J, Hamilton C, Maxwell G, Darcy K. Age matters when predicting overall survival benefit of combined chemotherapy and radiation versus radiation alone in high risk endometrial cancer: A study of 20,000 women using PORTEC-3 criteria. Gynecol Oncol 2020. [DOI: 10.1016/j.ygyno.2020.06.020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
|
37
|
Xu C, Tian C, Tarney C, Osei-Bonsu K, Richardson M, Chan J, Rocconi R, Jones N, Shriver C, Bateman N, Conrads T, Hamilton C, Casablanca Y, Maxwell G, Darcy K. Impact of histology on disparities in survival between non-Hispanic black and non-Hispanic white women with epithelial ovarian cancer in Commission on Cancer®-accredited facilities. Gynecol Oncol 2020. [DOI: 10.1016/j.ygyno.2020.06.132] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
38
|
Presti C, Tian C, Jackson A, Osei-Bonsu K, Richardson M, Chan J, Rocconi R, Jones N, Shriver C, Bateman N, Hamilton C, Conrads T, Casablanca Y, Maxwell G, Darcy K. Racial disparities in cancer-specific survival between 1973 and 2015 persist for uterine cancer and are growing for breast, ovarian and cervical cancer. Gynecol Oncol 2020. [DOI: 10.1016/j.ygyno.2020.05.602] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
39
|
Zhang LH, Yu DL, Liu BL, Tian C. A preliminary study on colour Doppler ultrasound for the evaluation of intervertebral stenosis of the vertebral artery. Clin Radiol 2020; 76:80.e9-80.e13. [PMID: 32988610 DOI: 10.1016/j.crad.2020.08.033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Accepted: 08/21/2020] [Indexed: 12/01/2022]
Abstract
AIM To determine the optimal thresholds for assessing intervertebral segment stenosis through haemodynamic parameters of colour Doppler ultrasound compared with computed tomography (CT) angiography. MATERIALS AND METHODS Fifty-four patients diagnosed with intervertebral stenosis on colour Doppler imaging were included. Twenty patients with normal vertebral arteries constituted a control group. Peak systolic velocity at the intervertebral stenosis (PSVIV-S) and the intervertebral segment distal to the stenosis (PSVIV-D), end diastolic velocity at the intervertebral stenosis (EDVIV-S), and the intervertebral segment distal to the stenosis (EDVIV-D) were measured, and the ratios of PSVIV-S/PSVIV-D and EDVIV-S/EDVIV-D were calculated. Cut-off values for the diagnosis of <50%, 50-69%, and 70-99% stenosis were determined using a receiver operating characteristics curve. RESULTS The optimal cut-off values of haemodynamic parameters for evaluating the intervertebral artery for <50% stenosis were PSVIV-S ≥81.5 cm/s, EDVIV-S ≥24.5 cm/s, PSVIV-S/PSVIV-D ≥1.49, and EDVIV-S/EDVIV-D ≥1.28; for 50-69% stenosis were PSVIV-S ≥137.5 cm/s, EDVIV-S ≥36.5 cm/s, PSVIV-S/PSVIV-D ≥3.14, and EDVIV-S/EDVIV-D ≥2.75; and for 70-99% stenosis were PSVIV-S ≥216 cm/s, EDVIV-S ≥55 cm/s, PSVIV-S/PSVIV-D ≥4.31, and EDVIV-S/EDVIV-D ≥4.16. PSVIV-S/PSVIV-D was the most superior haemodynamic parameter, with areas under the curve of 1.000, 0.906, and 0.968 for the diagnosis of <50%, 50-69%, and 70-99% stenosis, respectively. CONCLUSION Colour Doppler sonography reliably identifies intervertebral stenosis. The results can be used as a preliminary reference for evaluating intervertebral stenosis.
Collapse
|
40
|
Grignani G, Burgess M, Depenni R, Guida M, Spagnolo F, Spada F, De Braud F, Pulini J, Shankar S, Tian C, Lebbé C. 1089P POD1UM-201: A phase II study of retifanlimab (INCMGA00012) in advanced or metastatic Merkel cell carcinoma (MCC). Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.08.1213] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
|
41
|
Rao S, Capdevila J, Gilbert D, Kim S, Dahan L, Kayyal T, Fakih M, Demols A, Jensen L, Spindler KL, Arnold D, Tamberi S, Guren M, Cornfeld M, Jones M, Tian C, Catlett M, Spano JP. LBA42 POD1UM-202: Phase II study of retifanlimab in patients (pts) with squamous carcinoma of the anal canal (SCAC) who progressed following platinum-based chemotherapy. Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.08.2272] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
|
42
|
Micheletti SJ, Bryc K, Ancona Esselmann SG, Freyman WA, Moreno ME, Poznik GD, Shastri AJ, Beleza S, Mountain JL, Agee M, Aslibekyan S, Auton A, Bell R, Clark S, Das S, Elson S, Fletez-Brant K, Fontanillas P, Gandhi P, Heilbron K, Hicks B, Hinds D, Huber K, Jewett E, Jiang Y, Kleinman A, Lin K, Litterman N, McCreight J, McIntyre M, McManus K, Mozaffari S, Nandakumar P, Noblin L, Northover C, O’Connell J, Petrakovitz A, Pitts S, Shelton J, Shringarpure S, Tian C, Tung J, Tunney R, Vacic V, Wang X, Zare A. Genetic Consequences of the Transatlantic Slave Trade in the Americas. Am J Hum Genet 2020; 107:265-277. [PMID: 32707084 PMCID: PMC7413858 DOI: 10.1016/j.ajhg.2020.06.012] [Citation(s) in RCA: 75] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2020] [Accepted: 06/15/2020] [Indexed: 01/07/2023] Open
Abstract
According to historical records of transatlantic slavery, traders forcibly deported an estimated 12.5 million people from ports along the Atlantic coastline of Africa between the 16th and 19th centuries, with global impacts reaching to the present day, more than a century and a half after slavery's abolition. Such records have fueled a broad understanding of the forced migration from Africa to the Americas yet remain underexplored in concert with genetic data. Here, we analyzed genotype array data from 50,281 research participants, which-combined with historical shipping documents-illustrate that the current genetic landscape of the Americas is largely concordant with expectations derived from documentation of slave voyages. For instance, genetic connections between people in slave trading regions of Africa and disembarkation regions of the Americas generally mirror the proportion of individuals forcibly moved between those regions. While some discordances can be explained by additional records of deportations within the Americas, other discordances yield insights into variable survival rates and timing of arrival of enslaved people from specific regions of Africa. Furthermore, the greater contribution of African women to the gene pool compared to African men varies across the Americas, consistent with literature documenting regional differences in slavery practices. This investigation of the transatlantic slave trade, which is broad in scope in terms of both datasets and analyses, establishes genetic links between individuals in the Americas and populations across Atlantic Africa, yielding a more comprehensive understanding of the African roots of peoples of the Americas.
Collapse
|
43
|
Cousins A, Tian C, Casablanca Y. Predicting Survival Outcomes in Women with Uterine Carcinosarcoma. Gynecol Oncol 2020. [DOI: 10.1016/j.ygyno.2020.04.031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|
44
|
Ma L, Luo S, Xu S, Chang C, Tian L, Zhang J, Zhou X, Shi S, Tian C. Different Effects of Wild and Cultivated Soybean on Rhizosphere Bacteria. Microbiology (Reading) 2020. [DOI: 10.1134/s0026261719060109] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
|
45
|
Li J, Feng L, Tian C, Tang YL, Tang Y, Hu FQ. Long noncoding RNA-JPX predicts the poor prognosis of ovarian cancer patients and promotes tumor cell proliferation, invasion and migration by the PI3K/Akt/mTOR signaling pathway. EUROPEAN REVIEW FOR MEDICAL AND PHARMACOLOGICAL SCIENCES 2019; 22:8135-8144. [PMID: 30556851 DOI: 10.26355/eurrev_201812_16505] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE To investigate the clinical functions and the detailed mechanism of long noncoding RNA (lncRNA) JPX in human ovarian cancer cell lines. PATIENTS AND METHODS The expression of JPX in ovarian cancer tissues and cell lines was detected by Real-time polymerase chain reaction (RT-PCR). The correlation between JPX expression and prognosis was analyzed by follow-up data. The OVCAR-3 cell proliferation, invasion and migration were measured by methyl thiazolyl tetrazolium (MTT) assay, cloning formation assay and scratch assay. The cell apoptosis was detected by Bcl-2, Bax, and Caspase-3 activity. PI3K/mTOR inhibitor treatment and Western blot proved that JPX functions associated with PI3K/Akt/mTOR signaling and test the protein levels of p-PI3K, p-Akt, p-mTOR. RESULTS RT-PCR results showed that the expression of JPX was upregulated in ovarian cancer tissues and ovarian cancer cell lines (p < 0.05), and it was significantly increased in large tumor tissues and metastatic lymph nodes (p < 0.05). The survival rate of high JPX expression patients was much lower than low JPX expression patients (p < 0.05), indicating that high expression of JPX predicted poor prognosis in patients with ovarian cancer. MTT assay, colony formation and scratch assay showed the repression of JPX and resulted with significantly decreased in cell proliferation, invasion and migration of OVCAR-3 cells compared with the control (p < 0.05). PI3K/mTOR inhibitor treatment showed overexpression of JPX could activate the PI3K/Akt/mTOR signaling pathway. Western blot assay showed that the expressions of p-PI3K, p-Akt, p-mTOR were significantly increased after overexpression of JPX (p < 0.05), and after the inhibition of PI3K/Akt/mTOR signaling pathway and overexpression of JPX, the tumor cell proliferation, invasion and migration were significantly repressed, compared with the control (p < 0.05). CONCLUSIONS JPX could predict the poor prognosis in patients with ovarian cancer, which could promote the tumor cell proliferation, invasion and migration in human ovarian cancer cell lines and inhibited the cell apoptosis through activating PI3K/Akt/mTOR signaling pathway.
Collapse
|
46
|
Winner C, Horn P, Lambert J, Tian C, Rybalsky I, Shellenbarger K, Wong B. EP.84Quality of life in patients with Duchenne muscular dystrophy. Neuromuscul Disord 2019. [DOI: 10.1016/j.nmd.2019.06.490] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
47
|
Lambert J, Darmahkasih A, Horn P, Rybalsky I, Tian C, Shellenbarger K, Wong B. P.281Neurodevelopmental, behavioral and emotional features of Becker muscular dystrophy. Neuromuscul Disord 2019. [DOI: 10.1016/j.nmd.2019.06.395] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
48
|
Wong B, Summer S, Horn P, Rutter M, Rybalsky I, Tian C, Shellenbarger K, Hu S, Bange J, Kalkwarf H. P.260Lean muscle mass changes in patients with Duchenne and Becker muscular dystrophies. Neuromuscul Disord 2019. [DOI: 10.1016/j.nmd.2019.06.374] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
49
|
Marden J, Freimark J, Yao Z, Signorovitch J, Tian C, Wong B, Ward S. EP.77Real-world associations between motor function and lean body mass in the arms and legs in patients with Duchenne muscular dystrophy. Neuromuscul Disord 2019. [DOI: 10.1016/j.nmd.2019.06.483] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
|
50
|
Kelder A, Wong B, Horn P, Rybalsky I, Bange J, Tian C. P.23Quality of life outcomes in patients with congenital and childhood-onset myotonic dystrophy. Neuromuscul Disord 2019. [DOI: 10.1016/j.nmd.2019.06.052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
|