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1.
Small ; : e2401314, 2024 Apr 22.
Artigo em Inglês | MEDLINE | ID: mdl-38644698

RESUMO

Bismuth-based materials have been recognized as the appealing anodes for potassium-ion batteries (PIBs) due to their high theoretical capacity. However, the kinetics sluggishness and capacity decline induced by the structure distortion predominately retard their further development. Here, a heterostructure of polyaniline intercalated Bi2O2CO3/MXene (BOC-PA/MXene) hybrids is reported via simple self-assembly strategy. The ingenious design of heterointerface-rich architecture motivates significantly the interior self-built-in electric field (IEF) and high-density electron flow, thus accelerating the charge transfer and boosting ion diffusion. As a result, the hybrids realize a high reversible specific capacity, satisfying rate capability as well as long-term cycling stability. The in/ex situ characterizations further elucidate the stepwise intercalation-conversion-alloying reaction mechanism of BOC-PA/MXene. More encouragingly, the full cell investigation further highlights its competitive merits for practical application in further PIBs. The present work not only opens the way to the design of other electrodes with an appropriate working mechanism but also offers inspiration for built-in electric-field engineering toward high-performance energy storage devices.

2.
J Colloid Interface Sci ; 664: 168-177, 2024 Jun 15.
Artigo em Inglês | MEDLINE | ID: mdl-38460381

RESUMO

Ammonium vanadate with stable bi-layered structure and superior mass-specific capacity have emerged as competitive cathode materials for aqueous rechargeable zinc-ion batteries (AZIBs). Nevertheless, fragile NH…O bonds and too strong electrostatic interaction by virtue of excessive NH4+ will lead to sluggish Zn2+ ion mobility, further largely affects the electro-chemical performance of ammonium vanadate in AZIBs. The present work incorporates polypyrrole (PPy) to partially replace NH4+ in NH4V4O10 (NVO), resulting in the significantly enlarged interlayers (from 10.1 to 11.9 Å), remarkable electronic conductivity, increased oxygen vacancies and reinforced layered structure. The partial removal of NH4+ will alleviate the irreversible deammoniation to protect the laminate structures from collapse during ion insertion/extraction. The expanded interlayer spacing and the increased oxygen vacancies by the virtue of the introduction of polypyrrole improve the ionic diffusion, enabling exceptional rate performance of NH4V4O10. As expected, the resulting polypyrrole intercalated ammonium vanadate (NVOY) presents a superior discharge capacity of 431.9 mAh g-1 at 0.5 A g-1 and remarkable cycling stability of 219.1 mAh g-1 at 20 A g-1 with 78 % capacity retention after 1500 cycles. The in-situ electrochemical impedance spectroscopy (EIS), in-situ X-ray diffraction (XRD), ex-situ X-ray photoelectron spectroscopy (XPS) and ex-situ high resolution transmission electron microscopy (HR-TEM) analysis investigate a highly reversible intercalation Zn-storage mechanism, and the enhanced the redox kinetics are related to the combined effect of interlayer regulation, high electronic conductivity and oxygen defect engineering by partial substitution NH4+ of PPy incorporation.

3.
PLoS One ; 19(2): e0298324, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38363761

RESUMO

BACKGROUND: Few studies on molecular epidemiology have studied people with newly diagnosed HIV infection and ART Failure Patients at the same time in rural China. With more serious HIV epidemic than in other provinces in China, Sichuan is an area suitable for this study. OBJECTIVE: To analyze the characteristics of HIV-1 molecular networks and factors related to network entry among newly diagnosed HIV infection and ART Failure Patients in three county-level cities (A, B, C) in Sichuan Province, to provide scientific basis for accurate prevention and control. METHODS: Nested PCR amplification method was used to amplify HIV-1 pol gene region of 530 blood samples, Sequencer 4.9 was used to edit, clean and splice the gene sequence, Bioedit correction, Fastree 2.1.8 and Figtree 1.4.2 to construct evolutionary tree and determine genotype. HyPhy2.2.4 and Cytoscape 3.6.1 software were used to construct molecular network. Logistic regression analysis was applied. RESULTS: 523(98.68%) pol sequences were obtained, and a total of 518 valid sequences with basic information came into the final analyses. A total of 6 genotypes were detected, namely CRF01_AE (320,61.78%), CRF07_BC (149,28.76%), B (30,5.79%), CRF08_BC (11, 2.12%), CRF55_01B (6, 1.16%) and C (2, 0.39%). 186 of 518(35.91%) sequences entered the network at a genetic distance of 0.8%, forming 42 propagation clusters. "High-risk transmitters"(connected with two and more) accounted for 21.62%. Logistic regression showed that≥50 years old (OR = 2.474) were more risky than 18-49 years old, CRF07_BC sub-type (OR = 0.174) were less risky than CRF01_AE sub-type, B sub-type (OR = 6.698) is higher risky than CRF01_AE sub-type, and District B (OR = 0.077) less risky than that of A city. CONCLUSION: The sources of HIV infection in rural Sichuan are diversified and complicated. The prevention and control of HIV infection in Sichuan Province should focus on strengthening the long-term dynamic detection of elderly population, B strain sub-type, and in City A.


Assuntos
Infecções por HIV , Soropositividade para HIV , HIV-1 , Humanos , Idoso , Pessoa de Meia-Idade , Adolescente , Adulto Jovem , Adulto , Infecções por HIV/epidemiologia , Infecções por HIV/diagnóstico , Filogenia , HIV-1/genética , Reação em Cadeia da Polimerase , Genótipo , China/epidemiologia
4.
Ann Hematol ; 103(4): 1333-1344, 2024 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-38381172

RESUMO

We aimed to describe the clinical characteristics, particularly the occurrence and risk factors of severe/critical illness, in allogeneic hematopoietic stem cell (allo-HSCT) recipients infected with coronavirus disease 2019 (COVID-19) caused by Omicron variant in an observational prospective study (n = 311). The median time from allo-HSCT to COVID-19 diagnosis was 8.5 months (range 0.8-106.1) months. Four patients (1.3%) were reported to be asymptomatic during Omicron variant infection, and 135 (43.4%) patients showed lower respiratory tract disease. Thirty-four (10.9%) patients were categorized into serious infection (severe illness n = 25; critical illness n = 9) and the median duration from COVID-19 diagnosis to serious infections was 6 days (range, 0-29) days. Thirteen (4.2%) and 6 (1.9%) patients required intensive care unit care and invasive mechanical ventilation, respectively. Receiving more than 1 type of immunosuppressive therapies at COVID-19 diagnosis was associated with severity and persistence of infection. Six patients (1.9%) died after diagnosis of COVID-19 infection. The 4-week probability of overall survival after COVID-19 diagnosis was 98.7%, which was 100% and 88.2% for non-serious and serious infection group (P < 0.001), respectively. Thus, we observed a relatively low serious infection and mortality rate in allo-HSCT recipients infected with COVID-19 caused by Omicron variant.


Assuntos
COVID-19 , Transplante de Células-Tronco Hematopoéticas , Humanos , Estudos Prospectivos , Transplante Homólogo/efeitos adversos , Transplante de Células-Tronco Hematopoéticas/efeitos adversos , Teste para COVID-19 , Estado Terminal , COVID-19/terapia , COVID-19/etiologia , SARS-CoV-2 , Estudos Retrospectivos
5.
Br J Haematol ; 204(4): 1414-1421, 2024 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-38272453

RESUMO

We conducted a retrospective, multicentre study to compare consolidation therapy with or without first-line autologous stem cell transplant (ASCT) for peripheral T-cell lymphoma (PTCL) patients in a real-world setting. We enrolled 347 PTCL patients who achieved complete response after first-line treatment. Of these, 257 received consolidation chemotherapy (non-ASCT group) and 90 received ASCT (ASCT group). Clinical outcomes were comparable between ASCT and non-ASCT groups. After propensity score matching, the 2-year cumulative incidence of treatment-related mortality and relapse remained similar between groups (1.9% vs. 2.0%, p = 0.985; 24.7% vs. 47.1%, p = 0.021). However, significant differences emerged in progression-free survival and overall survival probabilities. Within the T-cell lymphoma subgroup, ASCT patients exhibited favourable outcomes compared to non-ASCT patients: 2-year progression-free survival (73.4% vs. 50.8%, p = 0.024) and overall survival (92.1% vs. 73.5%, p = 0.021). Notably, no significant differences were observed for patients with NK/T-cell lymphoma. These real-world data suggest that up-front ASCT is a safe and effective consolidation option for PTCL patients in remission, particularly those with T-cell lymphoma.


Assuntos
Transplante de Células-Tronco Hematopoéticas , Linfoma de Células T Periférico , Linfoma de Células T , Humanos , Estudos Retrospectivos , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Recidiva Local de Neoplasia , Transplante de Células-Tronco , Resposta Patológica Completa , Transplante Autólogo
6.
World J Gastrointest Surg ; 15(8): 1693-1702, 2023 Aug 27.
Artigo em Inglês | MEDLINE | ID: mdl-37701684

RESUMO

BACKGROUND: For treatment of hilar cholangiocarcinoma (HCCA), the rate of radical resection is low and prognosis is poor, and preoperative evaluation is not sufficiently accurate. 3D visualization has the advantage of giving a stereoscopic view, which makes accurate resection of HCCA possible. AIM: To establish precise resection of HCCA based on eOrganmap 3D reconstruction and full quantification technology. METHODS: We retrospectively analyzed the clinical data of 73 patients who underwent HCCA surgery. All patients were assigned to two groups. The traditional group received traditional 2D imaging planning before surgery (n = 35). The eOrganmap group underwent 3D reconstruction and full quantitative technical planning before surgery (n = 38). The preoperative evaluation, anatomical classification of hilar hepatic vessels, indicators associated with surgery, postoperative complications, liver function, and stress response indexes were compared between the groups. RESULTS: Compared with the traditional group, the amount of intraoperative blood loss in the eOrganmap group was lower, the operating time and postoperative intestinal ventilation time were shorter, and R0 resection rate and lymph node dissection number were higher (P < 0.05). The total complication rate in the eOrganmap group was 21.05% compared with 25.71% in the traditional group (P > 0.05). The levels of total bilirubin, Albumin (ALB) , aspartate transaminase, and alanine transaminase in the eOrganmap group were significantly different from those in the traditional group (intergroup effect: F = 450.400, 79.120, 95.730, and 13.240, respectively; all P < 0.001). Total bilirubin, aspartate transaminase, and alanine transaminase in both groups showed a decreasing trend with time (time effect: F = 30.270, 17.340, and 13.380, respectively; all P < 0.001). There was an interaction between patient group and time (interaction effect: F = 3.072, 2.965, and 2.703, respectively; P = 0.0282, 0.032, and 0.046, respectively); ALB levels in both groups tended to increase with time (time effect: F = 22.490, P < 0.001), and there was an interaction effect between groups and time (interaction effect: F = 4.607, P = 0.004). In the eOrganmap group, there was a high correlation between the actual volume of intraoperative liver specimen resection and the volume of preoperative virtual liver resection (t = 0.916, P < 0.001). CONCLUSION: The establishment of accurate laparoscopic resection of hilar cholangiocarcinoma based on preoperative eOrganmap 3D reconstruction and full quantization technology can make laparoscopic resection of hilar cholangiocarcinoma more accurate and safe.

7.
Foods ; 12(16)2023 Aug 09.
Artigo em Inglês | MEDLINE | ID: mdl-37627996

RESUMO

Cultivating rice varieties with lower cellulose content in the bran layer has the potential to enhance both the nutritional value and texture of brown rice. This study aims to establish a rapid and accurate method to quantify cellulose content in the bran layer utilizing near-infrared spectroscopy (NIRS), thereby providing a technical foundation for the selection, screening, and breeding of rice germplasm cultivars characterized by a low cellulose content in the bran layer. To ensure the accuracy of the NIR spectroscopic analysis, the potassium dichromate oxidation (PDO) method was improved and then used as a reference method. Using 141 samples of rice bran layer (rice bran without germ), near-infrared diffuse reflectance (NIRdr) spectra, near-infrared diffuse transmittance (NIRdt) spectra, and fusion spectra of NIRdr and NIRdt were used to establish cellulose quantitative analysis models, followed by a comparative evaluation of these models' predictive performance. Results indicate that the optimized PDO method demonstrates superior precision compared to the original PDO method. Upon examining the established models, their predictive capabilities were ranked in the following order: the fusion model outperforms the NIRdt model, which in turn surpasses the NIRdr model. Of all the fusion models developed, the model exhibiting the highest predictive accuracy utilized fusion spectra (NIRdr-NIRdt (1st der)) derived from preprocessed (first derivative) diffuse reflectance and transmittance spectra. This model achieved an external predictive R2p of 0.903 and an RMSEP of 0.213%. Using this specific model, the rice mutant O2 was successfully identified, which displayed a cellulose content in the bran layer of 3.28%, representing a 0.86% decrease compared to the wild type (W7). The utilization of NIRS enables quantitative analysis of the cellulose content within the rice bran layer, thereby providing essential technical support for the selection of rice varieties characterized by lower cellulose content in the bran layer.

8.
Front Bioeng Biotechnol ; 11: 1258666, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37645598

RESUMO

Substantial interests have been attracted to multiple bioactive and biomimetic biomaterials in recent decades because of their ability in presenting a structural and functional reconstruction of urinary tissues. Some innovative technologies have also been surging in urinary tissue engineering and urological regeneration by providing insights into the physiological behavior of the urinary system. As such, the hierarchical structure and tissue function of the bladder, urethra, and ureter can be reproduced similarly to the native urinary tissues. This review aims to summarize recent advances in functional biomaterials and biomimetic technologies toward urological reconstruction. Various nanofirous biomaterials derived from decellularized natural tissues, synthetic biopolymers, and hybrid scaffolds were developed with desired microstructure, surface chemistry, and mechanical properties. Some growth factors, drugs, as well as inorganic nanomaterials were also utilized to enhance the biological activity and functionality of scaffolds. Notably, it is emphasized that advanced approaches, such as 3D (bio) printing and organoids, have also been developed to facilitate structural and functional regeneration of the urological system. So in this review, we discussed the fabrication strategies, physiochemical properties, and biofunctional modification of regenerative biomaterials and their potential clinical application of fast-evolving technologies. In addition, future prospective and commercial products are further proposed and discussed.

9.
Nano Lett ; 23(21): 9788-9795, 2023 Nov 08.
Artigo em Inglês | MEDLINE | ID: mdl-37642519

RESUMO

Bismuth and bismuth-based compounds have been extensively studied as anodes as prospective candidates for rechargeable magnesium batteries (rMBs). However, the unsatisfactory magnesium-storage capability caused by the typical alloying reaction mechanism severely restricts the practical option for anodes in rMBs. Herein, polyaniline intercalated Bi2O2CO3 nanosheets are prepared by an effective interlayer engineering strategy to fine-tune the layer structure of Bi2O2CO3, achieving enhanced magnesium-storage capacity, rate performance, as well as long cycle life. Excitedly, a stepwise insertion-conversion-alloying reaction is aroused to stabilize the performance, which is elucidated by in/ex situ investigations. Moreover, first-principles calculations confirm that the coupling of Bi2O2CO3 and polyaniline not only increases the conductivity induced by the strong density of states and the interior self-built-in electric field but also significantly reduces the energy barrier of Mg shuttles. Our findings shed light on exploring new electrode materials with an appropriate working mechanism toward high-performance rechargeable batteries.

12.
Front Immunol ; 14: 1091014, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-36817493

RESUMO

Introduction: Measurable residual disease (MRD)-directed interferon-a treatment (i.e. preemptive IFN-α treatment) can eliminate the MRD in patients with acute myeloid leukemia (AML) after allogeneic hematopoietic stem cell transplantation (allo-HSCT). Therefore, this study aimed to further assess its efficacy in a multicenter retrospective study in a real-world setting. Methods: A total of 247 patientswho received preemptive IFN-α treatment were recruited from 4 hospitals in China. The protocols for MRD monitoring mainly based on quantitative polymerase chain reaction [qPCR] and multiparameter flow cytometry [MFC]. Results: The median duration of IFN-α treatment was 56 days (range, 1-1211 days). The cumulative incidences of all grades acute graft-versus-host disease (aGVHD), all grades chronic graft-versus-host disease (cGVHD), and severe cGVHD at 3 years after IFN-α therapy were 2.0% (95% confidence interval [CI], 0.3-3.8%), 53.2% (95% CI, 46.8-59.7%), and 6.2% (95% CI, 3.1-9.2%), respectively. The cumulative incidence of achieving MRD negative state at 2 years after IFN-α treatment was 78.2% (95% CI, 72.6-83.7%). The 3-year cumulative incidences of relapse and non-relapse mortality following IFN-α therapy were 20.9% (95% CI, 15.5-26.3%) and 4.9% (95%CI, 2.0-7.7%), respectively. The probabilities of leukemia-free survival and overall survival at 3 years following IFN-α therapy were 76.9% (95% CI, 71.5-82.7%) and 84.2% (95% CI, 78.7-90.1%), respectively. Multivariable analysis showed that MRD positive state by qPCR and MFC before IFN-α treatment, high-risk disease risk index before allo-HSCT, and receiving identical sibling donor HSCT were associated with a higher risk of relapse and a poorer leukemia-free survival. Severe cGVHD was associated with an increased risk of non-relapse mortality. Discussion: Thus, real-world data suggest that preemptive IFN-α is effective for treating patients with AML with MRD after allo-HSCT.


Assuntos
Síndrome de Bronquiolite Obliterante , Transplante de Células-Tronco Hematopoéticas , Leucemia Mieloide Aguda , Humanos , Estudos Retrospectivos , Transplante Homólogo , Leucemia Mieloide Aguda/terapia , Interferon-alfa , Doença Crônica , Transplante de Células-Tronco Hematopoéticas/métodos , Recidiva , Neoplasia Residual
13.
Blood Sci ; 5(1): 51-59, 2023 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-36742189

RESUMO

Epstein-Barr virus (EBV) reactivation is one of the most important infections after hematopoietic stem cell transplantation (HSCT) using haplo-identical related donors (HID). We aimed to establish a comprehensive model with machine learning, which could predict EBV reactivation after HID HSCT with anti-thymocyte globulin (ATG) for graft-versus-host disease (GVHD) prophylaxis. We enrolled 470 consecutive acute leukemia patients, 60% of them (n = 282) randomly selected as a training cohort, the remaining 40% (n = 188) as a validation cohort. The equation was as follows: Probability (EBV reactivation) =   1 1       +       e x p ( - Y ) , where Y = 0.0250 × (age) - 0.3614 × (gender) + 0.0668 × (underlying disease) - 0.6297 × (disease status before HSCT) - 0.0726 × (disease risk index) - 0.0118 × (hematopoietic cell transplantation-specific comorbidity index [HCT-CI] score) + 1.2037 × (human leukocyte antigen disparity) + 0.5347 × (EBV serostatus) + 0.1605 × (conditioning regimen) - 0.2270 × (donor/recipient gender matched) + 0.2304 × (donor/recipient relation) - 0.0170 × (mononuclear cell counts in graft) + 0.0395 × (CD34+ cell count in graft) - 2.4510. The threshold of probability was 0.4623, which separated patients into low- and high-risk groups. The 1-year cumulative incidence of EBV reactivation in the low- and high-risk groups was 11.0% versus 24.5% (P < .001), 10.7% versus 19.3% (P = .046), and 11.4% versus 31.6% (P = .001), respectively, in total, training and validation cohorts. The model could also predict relapse and survival after HID HSCT. We established a comprehensive model that could predict EBV reactivation in HID HSCT recipients using ATG for GVHD prophylaxis.

14.
Foods ; 12(2)2023 Jan 08.
Artigo em Inglês | MEDLINE | ID: mdl-36673386

RESUMO

Internally mildewed sunflower seeds, which cannot be recognized and discarded based on their appearance, pose a serious risk to human health. Thus, there is a need for a rapid non-destructive mildew grade discrimination method. Currently, few reports are available regarding this process. In this study, a method based on the combination of the near-infrared diffuse reflectance and near-infrared diffuse transmission (NIRr-NIRt) fusion spectra and a one-dimension convolutional neural network (1D-CNN) is proposed. The NIRr-NIRt fusion spectra can provide more complementary and comprehensive information, and therefore better discrimination accuracy, than a single spectrum. The first derivative (FD) preprocessing method could further improve the discrimination effect. By comparison against three conventional machine learning algorithms (artificial neural network (ANN), support vector machine (SVM), and K-nearest neighbor (KNN)), the 1D-CNN model based on the fusion spectra was found to perform the best. The mean prediction accuracy was 2.01%, 5.97%, and 10.55% higher than that of the ANN, SVM, and KNN models, respectively. These results indicate that the CNN model was able to precisely classify the mildew grades with a prediction accuracy of 97.60% and 94.04% for the training and test set, respectively. Thus, this study provides a non-destructive and rapid method for classifying the mildew grade of sunflower seeds with the potential to be applied in the quality control of sunflower seeds.

15.
Foods ; 11(17)2022 Aug 30.
Artigo em Inglês | MEDLINE | ID: mdl-36076819

RESUMO

The chemical composition of individual hybrid rice (F2) varieties varies owing to genetic differences between parental lines, and the effects of these differences on eating quality are unclear. In this study, based on a self-developed near-infrared spectroscopy platform, we explored these effects among a set of 143 hybrid indica rice varieties with different eating qualities. The single-grain amylose content (SGAC) and single-grain protein content (SGPC) models were established with coefficients of determination (R2) of 0.9064 and 0.8847, respectively, and the dispersion indicators (standard deviation, variance, extreme deviation, quartile deviation, and coefficient of variation) were proposed to analyze the variations in the SGAC and SGPC based on the predicted results. Our correlation analysis found that the higher the variation in the SGAC and SGPC, the lower the eating quality of the hybrid indica rice. Moreover, the addition of the dispersion indicators of the SGAC and SGPC improved the R2 of the eating quality model constructed using the composition-related physicochemical indicators (amylose content, protein content, alkali-spreading value, and gel consistency) from 0.657 to 0.850. Therefore, this new method proved to be useful for identifying high-eating-quality hybrid indica rice based on single near-infrared spectroscopy prior to processing and cooking.

16.
Front Oncol ; 12: 916442, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35936697

RESUMO

We aimed to identify the characteristics of immune reconstitution (IR) in patients who recovered from steroid-refractory acute graft-versus-host disease (SR-aGVHD) after basiliximab treatment. A total of 179, 124, 80, and 92 patients were included in the analysis for IR at 3, 6, 9, and 12 months, respectively, after haploidentical donor hematopoietic stem cell transplantation (HID HSCT). We observed that IR was fastest for monocytes and CD8+ T cells, followed by lymphocytes, CD3+ T cells, and CD19+ B cells and slowest for CD4+ T cells. Almost all immune cell subsets recovered comparably between patients receiving <5 doses and ≥5 doses of basiliximab. Most immune cell subsets recovered comparably between SR-aGVHD patients who recovered after basiliximab treatment and event-free HID HSCT recipients. Patients who recovered from SR-aGVHD after basiliximab treatment experienced satisfactory IR, which suggested that basiliximab may not have prolonged the negative impact on IR in these patients.

17.
Medicine (Baltimore) ; 101(32): e30064, 2022 Aug 12.
Artigo em Inglês | MEDLINE | ID: mdl-35960050

RESUMO

INTRODUCTION: Transformation from chronic myeloproliferative neoplasm to acute leukemia is a feature of myeloproliferative neoplasm; however, the rate is not high. Transformation to acute promyelocytic leukemia is rare. Here, we report a case of transformation of polycythemia vera to acute promyelocytic leukemia and describe a process of clonal evolution that has not yet been reported. PATIENT CONCERNS: In this case, a 51-year-old woman was diagnosed with polycythemia vera and concomitant JAK2/V617F mutations in July 2019. She underwent intermittent phlebotomy and oral hydroxyurea irregularly. After 2 years, the patient complained of fatigue and poor sleep quality for 2 months. DIAGNOSIS: Further examination revealed marked hypercellularity and grade 1 bone marrow fibrosis with the PML/RARαV variant (23.85% mutation load), WT1-Exon1 (37.8%), WT1-Exon9 (4.1%), JAK3-Exon7 (49.3%), and RELN-Exon55 (45.8%). According to the World Health Organization classification of tumors of hematopoietic and lymphoid tissues, the patient was ultimately diagnosed with a rare transformation of polycythemia vera to acute promyelocytic leukemia. INTERVENTIONS: The patient underwent dual induction therapy with all-trans-retinoic acid and arsenic trioxide. OUTCOMES: After 28 days of induction therapy, the patient achieved complete remission, was compliant and the treatment was well tolerated. CONCLUSION: Polycythemia vera can transform into acute promyelocytic leukemia; therefore, it is important to review bone aspiration and other tests to perform a comprehensive assessment and monitor the disease status, to detect disease progression and intervene early when it transforms into acute promyelocytic leukemia.


Assuntos
Leucemia Promielocítica Aguda , Transtornos Mieloproliferativos , Policitemia Vera , Mielofibrose Primária , Trióxido de Arsênio , Feminino , Humanos , Leucemia Promielocítica Aguda/diagnóstico , Leucemia Promielocítica Aguda/tratamento farmacológico , Leucemia Promielocítica Aguda/genética , Pessoa de Meia-Idade , Transtornos Mieloproliferativos/complicações , Policitemia Vera/complicações , Policitemia Vera/diagnóstico , Policitemia Vera/genética , Mielofibrose Primária/complicações
18.
Front Immunol ; 13: 954268, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35990629

RESUMO

Ruxolitinib is an important treatment for steroid refractory graft-versus-host disease (SR-GVHD). Therefore, we reported the updated results of a systematic review and meta-analysis of ruxolitinib as treatment for SR-GVHD. In addition, we wanted to compare the efficacy and safety between children and adults with SR-GVHD. Overall response rate (ORR) after ruxolitinib treatment was chosen as the primary end point. Complete response rate (CRR), infection, myelosuppression, and overall survival (OS) were chosen as secondary end points. A total of 37 studies were included in this meta-analysis, and 1,580 patients were enrolled. ORR at any time after ruxolitinib treatment was 0.77 [95% confidence interval (CI): 0.68-0.84] and 0.78 (95% CI: 0.74-0.81), respectively, for SR-aGVHD and SR-cGVHD. CRR at any time after ruxolitinib treatment was 0.49 (95% CI: 0.40-0.57) and 0.15 (95% CI: 0.10-0.23), respectively, for SR-aGVHD and SR-cGVHD. The ORRs at any time after treatment was highest in mouth SR-cGVHD, followed by skin, gut, joints and fascia, liver, eyes, esophagus, and lung SR-cGVHD. The incidence rate of infections after ruxolitinib treatment was 0.61 (95% CI: 0.45-0.76) and 0.47 (95% CI: 0.31-0.63), respectively, for SR-aGVHD and SR-cGVHD. The incidence rates of overall (grades I-IV) and severe (grades III-IV) cytopenia were 53.2% (95% CI: 16.0%-90.4%) and 31.0% (95% CI: 0.0-100.0%), respectively, for SR-aGVHD, and were 28.8% (95% CI:13.0%-44.6%) and 10.4% (95% CI: 0.0-27.9%), respectively, for SR-cGVHD. The probability rate of OS at 6 months after treatment was 63.9% (95% CI: 52.5%-75.2%) for SR-aGVHD. The probability rates of OS at 6 months, 1 year, and 2 years after treatment were 95% (95% CI: 79.5%-100.0%), 78.7% (95% CI: 67.2%-90.1%), and 75.3% (95% CI: 68.0%-82.7%), respectively, for SR-cGVHD. The ORR, CRR, infection events, and myelosuppression were all comparable between children and adults with SR-GVHD. In summary, this study suggests that ruxolitinib is an effective and safe treatment for SR-GVHD, and both children and adults with SR-GVHD could benefit from ruxolitinib treatment.


Assuntos
Doença Enxerto-Hospedeiro , Nitrilas , Pirazóis , Pirimidinas , Adulto , Criança , Doença Enxerto-Hospedeiro/tratamento farmacológico , Doença Enxerto-Hospedeiro/etiologia , Humanos , Nitrilas/efeitos adversos , Pirazóis/efeitos adversos , Pirimidinas/efeitos adversos , Esteroides
19.
World J Clin Cases ; 10(15): 4917-4922, 2022 May 26.
Artigo em Inglês | MEDLINE | ID: mdl-35801057

RESUMO

BACKGROUND: Paradoxical transtentorial herniation is a rare but life-threatening complication of cerebrospinal fluid drainage in patients with large decompressive craniectomy. However, paradoxical transtentorial herniation after rapid intravenous infusion of mannitol has not been reported yet. CASE SUMMARY: A 48-year-old male suffered from a right temporal vascular malformation with hemorrhage. In a coma, the patient was given emergency vascular malformation resection, hematoma removal, and the right decompressive craniectomy. The patient woke up on the 1st d after the operation and was given 50 g of 20% mannitol intravenously every 8 h without cerebrospinal fluid drainage. On the morning of the 7th postoperative day, after 50 g of 20% mannitol infusion in the Fowler's position, the neurological function of the patient continued to deteriorate, and the right pupils dilated to 4 mm and the left to 2 mm. Additionally, computed tomography revealed an increasing midline shift and transtentorial herniation. The patient was placed in a supine position and given 0.9% saline intravenously. A few hours later, the patient was fully awake with purposeful movements on his right side and normal communication. CONCLUSION: Paradoxical herniation may occur, although rarely, after infusing high-dose mannitol intravenously in the Fowler's position in the case of a large craniectomy defect. An attempt should be made to place the patient in the supine position because this simple maneuver may be life-saving. Do not use high-dose mannitol when the flap is severely sunken.

20.
Front Bioeng Biotechnol ; 10: 877193, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35557858

RESUMO

Cancer prognosis depends on the early detection of the disease. Gold nanoparticles (AuNPs) have attracted much importance in biomedical research due to their distinctive optical properties. The AuNPs are easy to fabricate, biocompatible, surface controlled, stable, and have surface plasmonic properties. The AuNPs based optical biosensors can intensely improve the sensitivity, specificity, resolution, penetration depth, contrast, and speed of these devices. The key optical features of the AuNPs based biosensors include localized surface plasmon resonance (LSPR), SERS, and luminescence. AuNPs based biomarkers have the potential to sense the protein biomarkers at a low detection level. In this review, the fabrication techniques of the AuNPs have been reviewed. The optical biosensors based on LSPR, SERS, and luminescence are also evaluated. The application of these biosensors for cancer protein detection is discussed. Distinct examples of cancer research that have a substantial impact on both scientific and clinical research are presented.

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