1
|
Increased iron uptake by splenic hematopoietic stem cells promotes TET2-dependent erythroid regeneration. Nat Commun 2024; 15:538. [PMID: 38225226 PMCID: PMC10789814 DOI: 10.1038/s41467-024-44718-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Accepted: 01/02/2024] [Indexed: 01/17/2024] Open
Abstract
Hematopoietic stem cells (HSCs) are capable of regenerating the blood system, but the instructive cues that direct HSCs to regenerate particular lineages lost to the injury remain elusive. Here, we show that iron is increasingly taken up by HSCs during anemia and induces erythroid gene expression and regeneration in a Tet2-dependent manner. Lineage tracing of HSCs reveals that HSCs respond to hemolytic anemia by increasing erythroid output. The number of HSCs in the spleen, but not bone marrow, increases upon anemia and these HSCs exhibit enhanced proliferation, erythroid differentiation, iron uptake, and TET2 protein expression. Increased iron in HSCs promotes DNA demethylation and expression of erythroid genes. Suppressing iron uptake or TET2 expression impairs erythroid genes expression and erythroid differentiation of HSCs; iron supplementation, however, augments these processes. These results establish that the physiological level of iron taken up by HSCs has an instructive role in promoting erythroid-biased differentiation of HSCs.
Collapse
|
2
|
Significant Weight Gain With the Administration of Lurasidone and Valproic Acid in Schizophrenia and Bipolar Disorder Patients. Cureus 2023; 15:e49005. [PMID: 38111448 PMCID: PMC10726790 DOI: 10.7759/cureus.49005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/18/2023] [Indexed: 12/20/2023] Open
Abstract
Antipsychotics are frequently used to treat psychiatric disorders and have been associated with weight gain. Mental disorders are likely to reduce patients' quality of life. Unhealthy lifestyles such as reduced physical activity, sleep disturbances, and irregular diets can lead to weight gain. Herein, we report two cases of schizophrenia and bipolar disorder who had a 10-kg gain in weight in six months with the administration of lurasidone and valproic acid. Lurasidone has fewer side effects, such as weight gain and somnolence. However, concomitant use of sedating antipsychotics or mood stabilizers in the acute phase and multiple doses increase the risk of weight gain. Additionally, various factors, including psychiatric symptoms and lifestyle changes, are believed to contribute to weight gain, and a comprehensive approach should be followed.
Collapse
|
3
|
Relationship between circulating mitochondrial DNA and microRNA in patients with major depression. J Affect Disord 2023; 339:538-546. [PMID: 37467797 DOI: 10.1016/j.jad.2023.07.073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 06/22/2023] [Accepted: 07/14/2023] [Indexed: 07/21/2023]
Abstract
BACKGROUND MicroRNAs (miRNAs) and circulating cell-free mitochondrial DNA (ccf-mtDNA) have attracted interest as biological markers of affective disorders. In response to stress, it is known that miRNAs in mitochondria diffuse out of the cytoplasm alongside mtDNA; however, this process has not yet been identified. We hypothesized that miRNAs derived from specific cell nuclei cause mitochondrial damage and mtDNA fragmentation under MDD-associated stress conditions. METHODS A comprehensive analysis of the plasma miRNA levels and quantification of the plasma ccf-mtDNA copy number were performed in 69 patients with depression to determine correlations and identify genes and pathways interacting with miRNAs. The patients were randomly assigned to receive either selective serotonin reuptake inhibitors (SSRI) or mirtazapine. Their therapeutic efficacy over four weeks was evaluated in relation to miRNAs correlated with ccf-mtDNA copy number. RESULTS The expression levels of the five miRNAs showed a significant positive correlation with the ccf-mtDNA copy number after correcting for multiple testing. These miRNAs are involved in gene expression related to thyroid hormone synthesis, the Hippo signaling pathway, vasopressin-regulated water reabsorption, and lysine degradation. Of these five miRNAs, miR-6068 and miR-4708-3p were significantly associated with the SSRI and mirtazapine treatment outcomes, respectively. LIMITATIONS This study did not show comparison with a healthy group. CONCLUSIONS The expression levels of specific miRNAs were associated with ccf-mtDNA copy number in untreated depressed patients; moreover, these miRNAs were linked to antidepressant treatment outcomes. These findings are expected to lead to the elucidation of new pathological mechanism of depression.
Collapse
|
4
|
Mitochondrial Gene Abnormality Complicated by Perinatal-Onset Depression. Prim Care Companion CNS Disord 2023; 25:23cr03501. [PMID: 37683618 DOI: 10.4088/pcc.23cr03501] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/10/2023] Open
|
5
|
WCN23-0212 LIRAGLUTIDE IMPROVES BOTH DIABETIC NEPHROPATHY AND CARDIOMYOPATHY IN THE SDT FATTY RAT, A CARDIORENAL MODEL OF TYPE 2 DIABETES. Kidney Int Rep 2023. [DOI: 10.1016/j.ekir.2023.02.469] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/22/2023] Open
|
6
|
A Novel SPTA1 Mutation in a Patient with Hereditary Spherocytosis without a Family History and Coexisting Gilbert's Syndrome. Intern Med 2023; 62:107-111. [PMID: 35650129 PMCID: PMC9876709 DOI: 10.2169/internalmedicine.9478-22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/30/2022] [Accepted: 04/20/2022] [Indexed: 02/05/2023] Open
Abstract
Most patients with hereditary spherocytosis (HS) have a family history of disease, while those without such a history are difficult to diagnose. We herein report a case of HS with no family history harboring a novel heterozygous mutation of SPTA1, c.2161G>A (p.E721K), and a homozygous polymorphism of UGT1A1*6. In silico analyses suggested that the mutation might contribute to the pathogenesis of HS. The coexistence of HS and Gilbert's syndrome increases the risk of gallstones. Therefore, splenectomy, alone or in combination with cholecystectomy, is recommended. The determination of genetic diathesis provides useful information for the management of hemolytic anemia.
Collapse
|
7
|
Abstract
OBJECTIVES The response to antidepressants varies significantly among individuals and is difficult to predict before treatment. In this randomised control trial, we explored cytokines that correlate with the therapeutic effect of mirtazapine (MIR) and selective serotonin reuptake inhibitors (SSRIs) and whether they could be predictors of remission for each antidepressant. METHODS Plasma cytokines, such as tumour necrosis factor-α (TNF-α), interleukin (IL)-1β, IL-2, IL-4, IL-6, IL-8, and granulocyte-macrophage colony-stimulating factor (GM-CSF) were assayed in 95 participants before medication and assayed by the enzyme-linked immunosorbent assay. The Hamilton Rating Scale for Depression assessed depressive symptoms over 4 weeks. RESULTS In the SSRI group, the baseline GM-CSF level was significantly higher in the remission group than in the non-remission group (p = .022). In the MIR group, the baseline level of TNF-α was significantly higher (p = .039) and IL-2 was lower (p = .032) in the remission group than in the non-remission group. In patients prescribed with MIR, the cut-off values of TNF-α (10.035 pg/mL) and IL-2 (1.170 pg/mL) calculated from the receiver operating characteristic curve suggested that the remission rate, which corresponds to a positive predictive value, could be increased from 31.3% to 60.0% and 50.0%, respectively. For those prescribed with SSRIs, the remission rate was 37.0% and using the cut-off value of GM-CSF (0.205 pg/mL), the remission rate could be almost doubled to 70%. CONCLUSIONS Our study shows that pre-treatment plasma concentrations of TNF-α, IL-2, and GM-CSF may suggest the predictability of remission by SSRIs or MIR.
Collapse
|
8
|
An experience with ibrutinib monotherapy for Richter's syndrome isolated in the central nervous system. J Clin Exp Hematop 2022; 62:238-241. [PMID: 36436931 PMCID: PMC9898719 DOI: 10.3960/jslrt.22017] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
Richter's syndrome (RS) of the central nervous system (CNS) is known to have an extremely poor prognosis. Ibrutinib has been reported to have some activity in patients with RS, despite its poor prognosis. Although ibrutinib crosses the blood-brain barrier, its efficacy in RS patients with CNS involvement remains unknown. Here, we report a case of RS isolated in the CNS that was confirmed to be clonally related to chronic lymphocytic leukemia (CLL) by immunoglobulin heavy chain gene analysis. Although the median survival of patients with RS clonally related to CLL was significantly shorter than that of patients with RS clonally unrelated to CLL, the patient received ibrutinib monotherapy without experiencing any significant adverse events, and the disease remained stable with ibrutinib until 6 weeks later. Following whole-brain radiation therapy (40 Gy in 20 fractions) with dexamethasone, the patient has survived for five months after diagnosis. Thus, ibrutinib may be a safe and effective therapeutic option for patients with RS and CNS involvement.
Collapse
|
9
|
142P The predictive biomarker for immune-related adverse events (irAEs) in patients with metastatic renal cell carcinoma treated with the combination therapy of nivolumab plus ipilimumab: Musashino study-irAE. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.10.177] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2022] Open
|
10
|
139MO Prognostic significance of the mechanism of inflammatory markers in advanced renal cell carcinoma patients treated with nivolumab plus ipilimumab. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.10.174] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/05/2022] Open
|
11
|
1740P Bladder preservation therapy in combination with atezolizumab and radiation therapy for invasive bladder cancer (BPT-ART): An open-label, single-arm, multicenter, phase II trial. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.07.1818] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
|
12
|
A bifurcation concept for B-lymphoid/plasmacytoid dendritic cells with largely fluctuating transcriptome dynamics. Cell Rep 2022; 40:111260. [PMID: 36044861 DOI: 10.1016/j.celrep.2022.111260] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2021] [Revised: 06/02/2022] [Accepted: 08/04/2022] [Indexed: 11/24/2022] Open
Abstract
Hematopoiesis was considered a hierarchical stepwise process but was revised to a continuous process following single-cell RNA sequencing. However, the uncertainty or fluctuation of single-cell transcriptome dynamics during differentiation was not considered, and the dendritic cell (DC) pathway in the lymphoid context remains unclear. Here, we identify human B-plasmacytoid DC (pDC) bifurcation as large fluctuating transcriptome dynamics in the putative B/NK progenitor region by dry and wet methods. By converting splicing kinetics into diffusion dynamics in a deep generative model, our original computational methodology reveals strong fluctuation at B/pDC bifurcation in IL-7Rα+ regions, and LFA-1 fluctuates positively in the pDC direction at the bifurcation. These expectancies are validated by the presence of B/pDC progenitors in the IL-7Rα+ fraction and preferential expression of LFA-1 in pDC-biased progenitors with a niche-like culture system. We provide a model of fluctuation-based differentiation, which reconciles continuous and discrete models and is applicable to other developmental systems.
Collapse
|
13
|
Intravascular clusters of T cells following chimeric antigen receptor T cell therapy. EJHAEM 2022; 3:576-577. [PMID: 35846047 PMCID: PMC9176144 DOI: 10.1002/jha2.395] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Revised: 01/21/2022] [Accepted: 01/24/2022] [Indexed: 11/16/2022]
|
14
|
Intra-individual state-dependent comparison of plasma mitochondrial DNA copy number and IL-6 levels in patients with bipolar disorder. J Affect Disord 2022; 299:644-651. [PMID: 34715189 DOI: 10.1016/j.jad.2021.10.098] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/02/2021] [Revised: 10/01/2021] [Accepted: 10/23/2021] [Indexed: 01/19/2023]
Abstract
BACKGROUND Patients with bipolar disorder (BD) have increased plasma IL-6 levels, which are higher in depressed BD (dBD) than remitted BD (rBD). However, the mechanism that differentiates the cytokine levels between dBD and rBD is not understood. First, we determined whether brain-derived mtDNA can be detected in plasma using neuron-specific mutant Polg1 transgenic (Tg) mice. Second, we investigated whether the plasma circulating cell-free mitochondrial DNA (ccf-mtDNA) differentiate the cytokine levels between dBD and rBD. METHODS Mouse plasma ccf-mtDNA levels were measured using real-time PCR targeting two regions of the mtDNA (CO1 and d-loop) in Tg mice and non-Tg littermates. Human plasma ccf-mtDNA levels were measured using real-time PCR targeting two regions of the mtDNA (ND1 and ND4) and IL-6 levels were evaluated in 10 patients in different states (depressed and remitted) of BD in a longitudinal manner and 10 healthy controls. RESULTS The mouse plasma CO1/D-loop ratio was significantly lower in Tg than non-Tg mice (P = 0.0029). Human plasma ccf-mtDNA copy number, ND4/ND1 ratio, and IL-6 levels were not significantly different between dBD and rBD. Human plasma ccf-mtDNA levels showed a nominal significant correlation with delusional symptoms (P = 0.033, ρ = 0.68). LIMITATIONS A larger sample size is required to generalize the results and to determine whether plasma ccf-mtDNA is associated with systemic inflammation. CONCLUSIONS Tg mice revealed that brain-derived mtDNA could be present in peripheral blood. The present findings did not coincide with our hypothesis that plasma ccf-mtDNA differentiates the cytokine levels between dBD and rBD.
Collapse
|
15
|
Correction to: Early central nervous system relapse of monomorphic epitheliotropic intestinal T‑cell lymphoma after cord blood transplantation. Int J Hematol 2022; 115:452-453. [PMID: 35076873 DOI: 10.1007/s12185-022-03295-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
|
16
|
[Acute promyelocytic leukemia complicated with central nervous system involvement successfully treated with all-trans retinoic acid via nasogastric tube]. [RINSHO KETSUEKI] THE JAPANESE JOURNAL OF CLINICAL HEMATOLOGY 2022; 63:26-30. [PMID: 35135948 DOI: 10.11406/rinketsu.63.26] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
At initial diagnosis, central nervous system (CNS) involvement in acute promyelocytic leukemia (APL) is rare. Here, we report a case of newly diagnosed APL with CNS involvement that was successfully treated with all-trans retinoic acid (ATRA)-combined chemotherapy. A 64-year-old woman was referred to our hospital to evaluate a bleeding tendency, and she was diagnosed with APL. Induction chemotherapy with ATRA via a nasogastric tube was initiated under mechanical ventilation because of respiratory failure and disturbance of consciousness. Although her respiratory condition improved a few days after initiating treatment, the disturbance of consciousness remained. Brain magnetic resonance imaging showed mixed signals of tumor infiltration and acute cerebral infarction with a focus on the right cerebellum. The patient was diagnosed with CNS involvement of APL and acute cerebral infarction. Three months after the initiation of induction therapy, her consciousness improved along with the reduction in CNS involvement, and complete molecular remission was achieved. Thus, patients with APL can have CNS involvement at initial diagnosis. Administering ATRA via nasogastric tube can be a good therapeutic option in patients with difficulty swallowing due to disturbance of consciousness.
Collapse
|
17
|
Artificial polyhydroxyalkanoate poly[2-hydroxybutyrate-block-3-hydroxybutyrate] elastomer-like material. Sci Rep 2021; 11:22446. [PMID: 34789822 PMCID: PMC8599675 DOI: 10.1038/s41598-021-01828-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Accepted: 11/03/2021] [Indexed: 11/09/2022] Open
Abstract
The first polyhydroxyalkanoate (PHA) block copolymer poly(2-hydroxybutyrate-b-3-hydroxybutyrate) [P(2HB-b-3HB)] was previously synthesized using engineered Escherichia coli expressing a chimeric PHA synthase PhaCAR with monomer sequence-regulating capacity. In the present study, the physical properties of the block copolymer and its relevant random copolymer P(2HB-ran-3HB) were evaluated. Stress-strain tests on the P(88 mol% 2HB-b-3HB) film showed an increasing stress value during elongation up to 393%. In addition, the block copolymer film exhibited slow contraction behavior after elongation, indicating that P(2HB-b-3HB) is an elastomer-like material. In contrast, the P(92 mol% 2HB-ran-3HB) film, which was stretched up to 692% with nearly constant stress, was stretchable but not elastic. The differential scanning calorimetry and wide-angle X-ray diffraction analyses indicated that the P(2HB-b-3HB) contained the amorphous P(2HB) phase and the crystalline P(3HB) phase, whereas P(2HB-ran-3HB) was wholly amorphous. Therefore, the elasticity of P(2HB-b-3HB) can be attributed to the presence of the crystalline P(3HB) phase and a noncovalent crosslinked structure by the crystals. These results show the potential of block PHAs as elastic materials.
Collapse
|
18
|
Nervonic acid level in cerebrospinal fluid is a candidate biomarker for depressive and manic symptoms: A pilot study. Brain Behav 2021; 11:e02075. [PMID: 33599392 PMCID: PMC8035447 DOI: 10.1002/brb3.2075] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/07/2020] [Revised: 01/20/2021] [Accepted: 01/31/2021] [Indexed: 12/14/2022] Open
Abstract
OBJECTIVE Our previous metabolomics study showed that the plasma nervonic acid levels were higher in patients with major depressive disorder (MDD) than those in healthy controls and patients with bipolar disorder (BD). To examine whether the nervonic acid levels differ in the central nervous system, we investigated the levels in the cerebrospinal fluid (CSF) of patients with MDD, BD, and healthy controls. METHODS Nervonic acid levels in CSF were measured by gas chromatography time-of-flight mass spectrometry. The participants included 30 patients with MDD, 30 patients with BD, and 30 healthy controls. RESULTS In contrast to our previous study, no significant differences were found in the nervonic acid level in the CSF among the patients with MDD, BD, and the healthy controls. Though no significant state-dependent changes were found among the three groups, we did observe a significant negative correlation between the nervonic acid levels and depressive symptoms in the depressive state of patients with MDD and BD (r = -0.38, p = .046). Further, a significant positive correlation was found between the nervonic acid levels and manic symptoms in the manic state of patients with BD (r = 0.79, p = .031). CONCLUSION The nervonic acid levels in the CSF did not differ among the patients with MDD, BD, and the healthy controls; however, a significant negative correlation with depressive symptoms and a positive correlation with manic symptoms was observed. Thus, the nervonic acid levels in the CSF may be a candidate biomarker for mood symptoms.
Collapse
|
19
|
Optimizing a Fed-Batch High-Density Fermentation Process for Medium Chain-Length Poly(3-Hydroxyalkanoates) in Escherichia coli. Front Bioeng Biotechnol 2021; 9:618259. [PMID: 33718339 PMCID: PMC7953831 DOI: 10.3389/fbioe.2021.618259] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Accepted: 02/08/2021] [Indexed: 11/15/2022] Open
Abstract
Production of medium chain-length poly(3-hydroxyalkanoates) [PHA] polymers with tightly defined compositions is an important area of research to expand the application and improve the properties of these promising biobased and biodegradable materials. PHA polymers with homopolymeric or defined compositions exhibit attractive material properties such as increased flexibility and elasticity relative to poly(3-hydroxybutyrate) [PHB]; however, these polymers are difficult to biosynthesize in native PHA-producing organisms, and there is a paucity of research toward developing high-density cultivation methods while retaining compositional control. In this study, we developed and optimized a fed-batch fermentation process in a stirred tank reactor, beginning with the biosynthesis of poly(3-hydroxydecanoate) [PHD] from decanoic acid by β-oxidation deficient recombinant Escherichia coli LSBJ using glucose as a co-substrate solely for growth. Bacteria were cultured in two stages, a biomass accumulation stage (37°C, pH 7.0) with glucose as the primary carbon source and a PHA biosynthesis stage (30°C, pH 8.0) with co-feeding of glucose and a fatty acid. Through iterative optimizations of semi-defined media composition and glucose feed rate, 6.0 g of decanoic acid was converted to PHD with an 87.5% molar yield (4.54 g L-1). Stepwise increases in the amount of decanoic acid fed during the fermentation correlated with an increase in PHD, resulting in a final decanoic acid feed of 25 g converted to PHD at a yield of 89.4% (20.1 g L-1, 0.42 g L-1 h-1), at which point foaming became uncontrollable. Hexanoic acid, octanoic acid, 10-undecenoic acid, and 10-bromodecanoic acid were all individually supplemented at 20 g each and successfully polymerized with yields ranging from 66.8 to 99.0% (9.24 to 18.2 g L-1). Using this bioreactor strategy, co-fatty acid feeds of octanoic acid/decanoic acid and octanoic acid/10-azidodecanoic acid (8:2 mol ratio each) resulted in the production of their respective copolymers at nearly the same ratio and at high yield, demonstrating that these methods can be used to control PHA copolymer composition.
Collapse
|
20
|
Predictive performance of the qSOFA score for in-hospital mortality of obstructive pyelonephritis patients: A multi-institutional study. EUR UROL SUPPL 2020. [DOI: 10.1016/s2666-1683(20)33590-4] [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] Open
|
21
|
Association between immune-related adverse events spectrum and efficacy of pembrolizumab in patients with advanced urothelial cancer. EUR UROL SUPPL 2020. [DOI: 10.1016/s2666-1683(20)33654-5] [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] Open
|
22
|
Previous chemoradiotherapy may enhance the efficacy of pembrolizumab in advanced urothelial carcinoma patients. EUR UROL SUPPL 2020. [DOI: 10.1016/s2666-1683(20)33653-3] [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] Open
|
23
|
Increased Production and Molecular Weight of Artificial Polyhydroxyalkanoate Poly(2-hydroxybutyrate) Above the Glass Transition Temperature Threshold. Front Bioeng Biotechnol 2019; 7:177. [PMID: 31428606 PMCID: PMC6689969 DOI: 10.3389/fbioe.2019.00177] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2019] [Accepted: 07/09/2019] [Indexed: 11/13/2022] Open
Abstract
Poly(2-hydroxybutyrate) [P(2HB)] is an artificial polyhydroxyalkanoate (PHA) synthesized using engineered 2-hydroxyalkanoate-polymerizing PHA synthase. In the present study, the effect of temperature on P(2HB) synthesis was investigated. Recombinant Escherichia coli harboring PHA synthetic genes were cultivated with 2HB and 3-hydroxybutyrate (3HB) supplementation at varied temperatures ranging from 24 to 36°C for the synthesis of P(2HB) and natural PHA P(3HB), respectively. P(2HB) production and its molecular weight increased considerably at a threshold temperature of 32-34°C. The trend was not observed during the synthesis of P(3HB). Notably, the threshold temperature was close to the glass transition temperature (T g) of P(2HB) (30°C), while the T g of P(3HB) (4°C) was much lower than the cultivation temperature. The results suggest that thermal motion of the polymer chains influenced the production and molecular weight of the obtained polymer. According to the results, the production and molecular weight of PHA drastically changes at the threshold temperature, which is linked to the T g of the polymer. The hypothesis should be applicable to PHAs in general, and potentially explains the inability to biosynthesize high-molecular-weight polylactate homopolymer with a T g of 60°C.
Collapse
|
24
|
Delayed onset of metronidazole-induced encephalopathy in a patient with systemic sclerosis accompanied by intestinal pseudo-obstruction. Scand J Rheumatol 2019; 49:77-79. [PMID: 31307267 DOI: 10.1080/03009742.2019.1615123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
|
25
|
Life-Threatening Tongue and Retropharyngeal Hemorrhage in a Patient with Hemophilia A with Inhibitors. AMERICAN JOURNAL OF CASE REPORTS 2019; 20:1022-1026. [PMID: 31303639 PMCID: PMC6647615 DOI: 10.12659/ajcr.916151] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Patient: Male, 71 Final Diagnosis: Hemophilia A Symptoms: Dysarthria • dysphagia • dyspnea Medication: — Clinical Procedure: Cricothyrotomy • tracheotomy Specialty: Hematology
Collapse
|
26
|
Expression of CD25 fluctuates in the leukemia-initiating cell population of CD25-positive AML. PLoS One 2018; 13:e0209295. [PMID: 30550585 PMCID: PMC6294374 DOI: 10.1371/journal.pone.0209295] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2018] [Accepted: 12/03/2018] [Indexed: 11/19/2022] Open
Abstract
CD25 is expressed on leukemic cells in 10–20% cases of acute myeloid leukemia (AML), and its expression is associated with poor prognosis. We reevaluated the relationship between CD25 expression and the leukemia-initiating cell (LIC) properties of AML using a patient-derived xenograft model. We divided lineage marker-negative (Lin–) CD34+CD38– or Lin–CD34+ cells from CD25-positive AML into CD25-positive and -negative populations, and then transplanted each population into NOD.Cg-PrkdcscidIl2rgtm1Wjl/Sz mice. Leukemic engraftment was observed with both CD25-positive and -negative populations from three of nine CD25-positive AML patients. In two of those three patients, CD25-positive and -negative Lin–CD34+ cells engrafted at the primary transplantation led to leukemic engraftment at the secondary transplantation, in which engrafted cells contained both CD25-positive and -negative Lin–CD34+ AML cells. In an in vitro culture system, expression of CD25 was considerably induced in the CD25-negative population of Lin–CD34+ cells from two cases of CD25-positive AML. In one case, CD25-positive Lin–CD34+ cells gave rise to CD25-negative as well as -positive CD34+ cells. These observations suggest that there exist CD25-positive and -negative populations that can reconstitute CD25-positive AML in a patient-derived xenograft model, and that CD25 expression fluctuates in the LICs of AML.
Collapse
|
27
|
|
28
|
Abstract
BACKGROUND Although inflammatory cytokines are established biomarkers of mood disorders, their molecular mechanism is not known. We hypothesized that circulating mitochondrial DNA (mtDNA) contributes to inflammation and could be used as biomarkers. We investigated if circulating mtDNA level is associated with inflammatory cytokines and can be used as a biomarker of mood disorders. METHODS Plasma mtDNA concentration was measured with real-time quantitative PCR targeting two regions of the mtDNA and plasma levels of four cytokines (GM-CSF, IL-2, IL-4, and IL-6) were measured with a multiplex immunoassay method in 109 patients with major depressive disorder (MDD). The most significantly correlated cytokine was verified with an enzyme-linked immunosorbent assay (ELISA). The data from 28 patients with bipolar disorder (BD), 17 patients with schizophrenia (SZ), and 29 healthy controls were compared. RESULTS MtDNA levels showed a nominal positive correlation with GM-CSF, IL-2 and IL-4 in patients with MDD. The most significant correlation with IL-4 (ρ = 0.38, P < 0.00005) was verified with an ELISA (ρ = 0.19, P = 0.049). Unexpectedly, patients with MDD and BD showed significantly lower plasma mtDNA levels than controls. MtDNA levels were lower in the depressive state than in the euthymic state in patients with MDD. Patients with depression, bipolar disorder, and schizophrenia did not show significantly higher levels of these four cytokines than controls. LIMITATIONS There is a possibility that the patients in this study are different from previous studies in which increased cytokine levels were reported. MtDNA levels should be measured in patients showing elevated plasma cytokine levels. A larger sample is required to generalize the results. CONCLUSIONS The present findings coincide with our hypothesis that circulating mtDNA contributes to the inflammation in MDD. Further studies are needed to conclude whether plasma mtDNA would be a biomarker of mood disorders.
Collapse
|
29
|
Successful treatment of primary bone marrow Hodgkin lymphoma with brentuximab vedotin: a case report and review of the literature. J Med Case Rep 2018; 12:151. [PMID: 29843820 PMCID: PMC5975584 DOI: 10.1186/s13256-018-1693-0] [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: 01/08/2018] [Accepted: 04/17/2018] [Indexed: 12/27/2022] Open
Abstract
Background Hodgkin lymphoma usually presents with sequential enlargement of peripheral lymph nodes, and bone marrow invasion rarely occurs (approximately 3–5%). However, several cases have been reported as “primary” bone marrow Hodgkin lymphoma, especially among patients with human immunodeficiency virus and the elderly. This type of Hodgkin lymphoma is characterized by no peripheral lymphadenopathies and has been reported to have poorer prognosis. Case presentation A 38-year-old Japanese man was admitted to our hospital because of fever of unknown origin and pancytopenia without lymphadenopathies. Bone marrow examination revealed Hodgkin cells mimicking abnormal cells. These were positive for CD30, EBER-1, CD15, PAX-5, and Bob-1 and negative for Oct-2, CD3, CD20, surface immunoglobulin, CD56. On the basis of systemic evaluation and bone marrow examination, he was diagnosed with primary bone marrow Hodgkin lymphoma. We initiated therapy with DeVIC (dexamethasone, etoposide, ifosfamide, and carboplatin) therapy, but remission was not achieved. Then, the patient was treated with brentuximab vedotin combined with systemic chemotherapy (Adriamycin, vinblastine and dacarbazine), which was effective. Conclusions There is no established treatment strategy for Hodgkin lymphoma, and therapeutic outcomes using ABVD (Adriamycin, bleomycin, vinblastine and dacarbazine)-like or CHOP (cyclophosphamide, Adriamycin, vincristine, and prednisone)-like regimens are reportedly poor. Only a few patients have been reported to achieve long-term remission. Through this case report, we suggest an alternative therapeutic option for primary bone marrow Hodgkin lymphoma.
Collapse
|
30
|
Renal papillary tip extract stimulates BNP production and excretion from cardiomyocytes. PLoS One 2018; 13:e0197078. [PMID: 29734386 PMCID: PMC5937764 DOI: 10.1371/journal.pone.0197078] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2018] [Accepted: 04/25/2018] [Indexed: 12/28/2022] Open
Abstract
BACKGROUND Brain natriuretic peptide (BNP) is an important biomarker for patients with cardiovascular diseases, including heart failure, hypertension and cardiac hypertrophy. It is also known that BNP levels are relatively higher in patients with chronic kidney disease and no heart disease; however, the mechanism remains unclear. METHODS AND RESULTS We developed a BNP reporter mouse and occasionally found that this promoter was activated specifically in the papillary tip of the kidneys, and its activation was not accompanied by BNP mRNA expression. No evidence was found to support the existence of BNP isoforms or other nucleotide expression apart from BNP and tdTomato. The pBNP-tdTomato-positive cells were interstitial cells and were not proliferative. Unexpectedly, both the expression and secretion of BNP increased in primary cultured neonatal cardiomyocytes after their treatment with an extract of the renal papillary tip. Intraperitoneal injection of the extract of the papillary tips reduced blood pressure from 210 mmHg to 165 mmHg, the decrease being accompanied by an increase in serum BNP and urinary cGMP production in stroke-prone spontaneously hypertensive (SHR-SP) rats. Furthermore the induction of BNP by the papillary extract from rats with heart failure due to myocardial infarction was increased in cardiomyocytes. CONCLUSIONS These results suggested that the papillary tip express a substance that can stimulate BNP production and secretion from cardiomyocytes.
Collapse
|
31
|
Plasma Nervonic Acid Is a Potential Biomarker for Major Depressive Disorder: A Pilot Study. Int J Neuropsychopharmacol 2017; 21:207-215. [PMID: 29040586 PMCID: PMC5838832 DOI: 10.1093/ijnp/pyx089] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/19/2017] [Accepted: 10/02/2017] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Diagnostic biomarkers of major depressive disorder, bipolar disorder, and schizophrenia are urgently needed, because none are currently available. METHODS We performed a comprehensive metabolome analysis of plasma samples from drug-free patients with major depressive disorder (n=9), bipolar disorder (n=6), schizophrenia (n=17), and matched healthy controls (n=19) (cohort 1) using liquid chromatography time-of-flight mass spectrometry. A significant effect of diagnosis was found for 2 metabolites: nervonic acid and cortisone, with nervonic acid being the most significantly altered. The reproducibility of the results and effects of psychotropic medication on nervonic acid were verified in cohort 2, an independent sample set of medicated patients [major depressive disorder (n=45), bipolar disorder (n=71), schizophrenia (n=115)], and controls (n=90) using gas chromatography time-of-flight mass spectrometry. RESULTS The increased levels of nervonic acid in patients with major depressive disorder compared with controls and patients with bipolar disorder in cohort 1 were replicated in the independent sample set (cohort 2). In cohort 2, plasma nervonic acid levels were also increased in the patients with major depressive disorder compared with the patients with schizophrenia. In cohort 2, nervonic acid levels were increased in the depressive state in patients with major depressive disorder compared with the levels in the remission state in patients with major depressive disorder and the depressive state in patients with bipolar disorder. CONCLUSION These results suggested that plasma nervonic acid is a good candidate biomarker for the depressive state of major depressive disorder.
Collapse
|
32
|
CXCL12-CXCR4 Axis Is Required for Contact-Mediated Human B Lymphoid and Plasmacytoid Dendritic Cell Differentiation but Not T Lymphoid Generation. THE JOURNAL OF IMMUNOLOGY 2017; 199:2343-2355. [PMID: 28842468 DOI: 10.4049/jimmunol.1700054] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/11/2017] [Accepted: 07/28/2017] [Indexed: 01/06/2023]
Abstract
We investigated the involvement of CXCL12-CXCR4 interactions in human lymphohematopoiesis by coculture with telomerized human stromal cells. CXCR4 expression was low in CD34+CD38-CD45RA-CD10-CD7-CD19- immature hematopoietic stem/precursor cells (HSPCs) but higher in CD34+CD38-CD45RA+CD10+CD7+/-CD19- early lymphoid precursors and even higher in CD34+CD38+CD45RA+CD10+CD7-CD19+ pro-B cells. Inhibition of the effect of stromal cell-produced CXCL12 by an anti-CXCR4-blocking Ab suppressed the generation of CD45RA+CD10-CD7+CD19- early T lymphoid precursors (ETPs) and CD45RA+CD10+CD7-CD19+/- B lymphoid precursors on stromal cells, but it did not affect the generation of ETPs in conditioned medium of stromal cell cultures. Replating assays showed that contact with stromal cells was critical for HSPC-derived CD45RA+CD10+CD7-CD19- B lineage-biased precursors to differentiate into CD19+ pro-B cells, which was suppressed by the anti-CXCR4 Ab. Conversely, HSPC-derived ETPs possessed T and B lymphoid and monocytic differentiation potential; stromal cell contact was not required for their growth but rather promoted B lymphoid differentiation. The anti-CXCR4 Ab did not affect the growth of ETPs in conditioned medium, but it suppressed their B lymphoid differentiation on stromal cells. CD14-CD11c-HLA-DR+CD123highCD303+ plasmacytoid dendritic cells developed from HSPCs and ETPs exclusively in contact with stromal cells, which was suppressed by the anti-CXCR4 Ab. These data indicate that CXCL12 plays an essential role in stromal cell contact-mediated B lymphoid and plasmacytoid dendritic cell differentiation from immature hematopoietic and early T lymphoid precursors with a multilineage differentiation potential, but it does not participate in contact-independent generation of early T lymphoid precursors.
Collapse
|
33
|
Contact with renal sinus is a significant risk factor for metastasis in pT1 clear cell renal cell carcinoma. ACTA ACUST UNITED AC 2017. [DOI: 10.1016/s1569-9056(17)30705-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
|
34
|
[Valacyclovir Maintenance Therapy for a Case of Unilateral Acute Retinal Necrosis during Chemotherapy]. KANSENSHOGAKU ZASSHI. THE JOURNAL OF THE JAPANESE ASSOCIATION FOR INFECTIOUS DISEASES 2017; 91:159-162. [PMID: 30277703] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Acute retinal necrosis (ARN) is an infectious retinitis caused by varicella zoster virus (VZV), herpes simplex or cytomegalovirus. Without systemic therapy, ARN may progress bilaterally in seventy percent of unilateral patients. A 38-year-old-man was admitted to our hospital with Hodgkin's lymphoma and hemophagocytic lymphohistiocytosis. During the chemotherapy, left facial herpes zoster developed. He received valacyclovir for 14 days. After improvement of the blisters, he continued acyclovir as secondary prophylaxis. Three weeks after the facial zoster, sudden visual loss in the left eye occurred. ARN induced by VZV was diagnosed with ophthalmoscopy and the polymerase chain reaction test of the anterior chamber. Because continuous chemotherapy for Hodgkin's lymphoma was needed, he continued valacyclovir as secondary prophylaxis for 6 months and he accomplished the chemotherapy without contralateral progression. Our case suggested the utility of valacyclovir for secondary prophylaxis. Further experiments would be required to establish secondary prophylaxis in immunocompromised patients.
Collapse
|
35
|
Solitary pulmonary MALT lymphoma presenting crystal-storing histiocytosis. [RINSHO KETSUEKI] THE JAPANESE JOURNAL OF CLINICAL HEMATOLOGY 2017; 57:1032-7. [PMID: 27599420 DOI: 10.11406/rinketsu.57.1032] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Crystal-storing histiocytosis (CSH) is characterized by the accumulation of large histiocytes with intracytoplasmic crystallized immunoglobulin and is typically associated with hematological malignancies. A 69-year-old man, who had a history of left nephrectomy and chemotherapy for renal pelvic cancer six years earlier, had received a CT scan every year thereafter and a small nodule was found in the left lower lobe of his lungs two years prior to the current presentation. Because of progression of this pulmonary nodule, he underwent pulmonary lobectomy on suspicion of lung cancer. He was ultimately diagnosed as having CSH accompanied by mucosa-associated lymphoid tissue lymphoma stage IAE. In the absence of further treatment, he has been well with no recurrence of the disease for 10 months postoperatively. Because CSH could reportedly be an initial presentation of hematological malignancies, careful observation and evaluation for the presence of these blood disorders is essential.
Collapse
|
36
|
Search for plasma biomarkers in drug-free patients with bipolar disorder and schizophrenia using metabolome analysis. Psychiatry Clin Neurosci 2017; 71:115-123. [PMID: 27676126 DOI: 10.1111/pcn.12461] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/23/2016] [Revised: 08/22/2016] [Accepted: 09/22/2016] [Indexed: 12/18/2022]
Abstract
AIM There is an urgent need for diagnostic biomarkers of bipolar disorder (BD) and schizophrenia (SZ); however, confounding effects of medication hamper biomarker discovery. In this study, we conducted metabolome analyses to identify novel plasma biomarkers in drug-free patients with BD and SZ. METHODS We comprehensively analyzed plasma metabolites using capillary electrophoresis time-of-flight mass spectrometry in patients with SZ (n = 17), BD (n = 6), and major depressive disorder (n = 9) who had not received psychotropics for at least 2 weeks, and in matched healthy controls (n = 19). The results were compared with previous reports, or verified in an independent sample set using an alternative analytical approach. RESULTS Lower creatine level and higher 2-hydroxybutyric acid level were observed in SZ than in controls (uncorrected P = 0.016 and 0.043, respectively), whereas they were unaltered in a previously reported dataset. Citrulline was nominally significantly decreased in BD compared to controls (uncorrected P = 0.043); however, this finding was not replicated in an independent sample set of medicated patients with BD. N-methyl-norsalsolinol, a metabolite of dopamine, was suggested as a candidate biomarker of BD; however, it was not detected by the other analytical method. Levels of betaine, a previously reported candidate biomarker of schizophrenia, were unchanged in the current dataset. CONCLUSION Our preliminary findings suggest that the effect of confounding factors, such as duration of illness and medication, should be carefully controlled when searching for plasma biomarkers. Further studies are required to establish robust biomarkers for these disorders.
Collapse
|
37
|
[Superior sagittal sinus thrombosis after intrathecal chemotherapy and intravenous high-dose cytarabine in an acute myeloid leukemia case with t(8;21)(q22;q22)]. [RINSHO KETSUEKI] THE JAPANESE JOURNAL OF CLINICAL HEMATOLOGY 2016; 57:477-82. [PMID: 27169454 DOI: 10.11406/rinketsu.57.477] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Superior sagittal sinus thrombosis (SSST) is a very rare but life-threatening complication in leukemia patients. SSST is very rare in acute myeloid leukemia (AML). In leukemia patients, several risk factors for SSST have been reported such as administration of L-asparaginase, disseminated intravascular coagulation, congenital thrombophilia, meningeal leukemia, and intrathecal chemotherapy (IT). Lumbar puncture itself and corticosteroid administration have also been acknowledged as risk factors. We describe herein our clinical experience with SSST in a 29-year-old Japanese man suffering from AML with t(8;21)(q22;q22), who presented with abrupt onset of loss of consciousness, left hemiplegia, and seizure soon after IT and high-dose cytarabine (HD-AraC) with dexamethasone for post remission consolidation. Despite the presence of intracranial hemorrhage (ICH) due to SSST rupture, we conducted anticoagulant therapy with heparin. Although ICH worsened temporarily, his clinical condition gradually improved with resolution of the SSST, and he eventually became fully ambulatory. There were no deficiencies of natural anticoagulants. Three additional cycles of HD-AraC without IT therapy were conducted, but no neurological complications recurred with the concomitant use of warfarin. He was discharged free of neurological deficits. In our case, there is a possibility that IT and the administration of corticosteroids along with HD-AraC triggered SSST.
Collapse
|
38
|
Efficacy of repetitive transcranial stimulation with H-coil for treatment of intractable neuropathic pain in lower extremities. Clin Neurophysiol 2016. [DOI: 10.1016/j.clinph.2015.11.089] [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]
|
39
|
[Development of syndrome of inappropriate secretion of ADH and reversible posterior leukoencephalopathy during initial rituximab-CHOP therapy in a patient with diffuse large B-cell lymphoma]. [RINSHO KETSUEKI] THE JAPANESE JOURNAL OF CLINICAL HEMATOLOGY 2013; 54:269-272. [PMID: 23676641] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
A 61-year-old woman presented with a right mandibular tumor and was diagnosed with DLBCL clinical stage IIIA from the biopsy results of the tumor and CT examination. An initial rituximab was administrated a week after the first CHOP treatment. During the infusion of rituximab, she exhibited disorientation, seizure, and consciousness disturbance. Hyponatremia due to SIADH and hypertension were coincidentally observed. MRI revealed T2 and FLAIR hyperintense signals involving the bilateral occipital, parietal, frontal lobes and the cerebellum that were consistent with reversible posterior leukoencephalopathy syndrome (RPLS). Her consciousness level recovered in parallel with corrections in serum sodium levels and blood pressure. Although she presented with transient cortical blindness, all neurological abnormalities disappeared 40 hours after the occurrence of seizure. She received a further 7 cycles of CHOP followed by 7 cycles of rituximab treatment with no relapse of RPLS. After irradiation for a residual abdominal tumor, she has maintained complete remission for 2 years. Although RPLS is a rare complication of rituximab-CHOP chemotherapy, it should be considered in patients with DLBCL who present with acute neurological deterioration.
Collapse
|
40
|
Distinctly Different Characteristics of Flocculation in Yeast1. JOURNAL OF THE INSTITUTE OF BREWING 2012. [DOI: 10.1002/j.2050-0416.2002.tb00539.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
|
41
|
Application of wavelet analysis to the plethysmogram for the evaluation of mental stress. CONFERENCE PROCEEDINGS : ... ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY. IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY. ANNUAL CONFERENCE 2012; 2005:2781-4. [PMID: 17282818 DOI: 10.1109/iembs.2005.1617049] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
The present study proposes a new stress evaluation technique using the photoplethysmogram (PTG). Heart rate variability (HRV) is often used to evaluate mental stress. HRV can be measured from an electrocardiogram (ECG). The frequency variability of HRV and mental stress response are related. PTG also indicates changes in emotional response. PTG can easily be measured without body surface electrodes. This method is less invasive than ECG measurement. We attempt herein to evaluate mental stress by wavelet analysis of the PTG. PTG was measured in the resting and mental stress states, and wavelet transformed PTGs were compared. In nine out of ten subjects, the wavelet result for PTG revealed a decrease in the frequency band.
Collapse
|
42
|
MP-04.19 Inter-Observer Variation in the Pathological Diagnosis of Non-Muscle Invasive Bladder Cancer Between Tertiary Care Centers and Central Pathology Review. Urology 2011. [DOI: 10.1016/j.urology.2011.07.093] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
43
|
Small peptides switch the transcriptional activity of Shavenbaby during Drosophila embryogenesis. Science 2010; 329:336-9. [PMID: 20647469 DOI: 10.1126/science.1188158] [Citation(s) in RCA: 263] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
A substantial proportion of eukaryotic transcripts are considered to be noncoding RNAs because they contain only short open reading frames (sORFs). Recent findings suggest, however, that some sORFs encode small bioactive peptides. Here, we show that peptides of 11 to 32 amino acids encoded by the polished rice (pri) sORF gene control epidermal differentiation in Drosophila by modifying the transcription factor Shavenbaby (Svb). Pri peptides trigger the amino-terminal truncation of the Svb protein, which converts Svb from a repressor to an activator. Our results demonstrate that during Drosophila embryogenesis, Pri sORF peptides provide a strict temporal control to the transcriptional program of epidermal morphogenesis.
Collapse
|
44
|
Minimum incision endoscopic surgery (MIES) in Japanese urology: results of adrenalectomy, radical nephrectomy and radical prostatectomy. Aktuelle Urol 2010; 41 Suppl 1:S15-9. [PMID: 20094945 DOI: 10.1055/s-0029-1224662] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
AIM The aim of this study was to evaluate the feasibility of our minimum incision endoscopic surgeries (MIES), adrenalectomy, radical nephrectomy and radical prostatectomy, which are operated via a single minimum incision which narrowly permits extraction of the specimen, using an endoscope, without gas insufflation, without any trocar ports and without injury to the peritoneum. These operations have been developed in our department in the late 1990 s and have since been performed in more than 1000 patients and certified as advanced surgery by the Japanese government in 2006. METHODS Adrenalectomy, radical nephrectomy and radical prostatectomy were carried out via a single minimum incision under the conditions of gasless, portless (without trocar ports), intact peritoneum and at low cost with reusable devices. The anatomic plane was separated through the incision and a wide working space was made extraperitoneally. New devices were made especially for this operation in our department, which are now commercially available. The results of the most recent consecutive cases (2005-2007) are evaluated. The results of adrenalectomy and radical nephrectomy performed by 12 operators including inexperienced doctors were compared with the initial results performed by 2 operators, mostly by one operator. RESULTS In the recent 60 cases of adrenalectomy, the average length of incision, operative time, estimated blood loss were 5.7 cm (5.6 cm in the initial 30 cases), 156 min (147 min) and 174 ml (139 ml), respectively. A complication was observed in one case, injury to the renal artery. Blood transfusion was not performed. Average days to oral feeding, to long walking (more than 100 m) and to possible minimal hospital stay were 1.3 days (2 days), 1.1 days (1.1 days) and 1.9 days (4.6 days), respectively. In the recent 80 cases of radical nephrectomy, the average length of incision, operative time, estimated blood loss were 6.6 cm (6.6 cm in the initial 80 cases), 192 min (186 min) and 315 ml (324 ml), respectively. Complications were not observed in any of the cases (2) and blood transfusion was performed in 1 case (3). Average days to oral feeding, to long walking (more than 100 m) and to possible minimal hospital stay were 1.1 days (1.4 days), 1.2 days (1.4 days) and 1.9 days (4.8 days), respectively. In the recent 50 cases of radical prostatectomy, the average length of incision and operative time were 5.9 cm and 261 min, respectively. Two complications (small rectal injuries) were observed and one blood transfusion was performed. Average days to oral feeding, to long walking (more than 100 m) and possible minimal hospital stay were 1.0 days, 1.0 days and 2.4 days, respectively. Wound pain was minimal and analgesics were generally not required on the second postoperative day in the above 3 operations. Although prophylactic antibiotics were not used in the recent cases of adrenalectomy and radical nephrectomy, surgical site infection was not observed. CONCLUSION Minimum incision endoscopic surgery (MIES) in Japanese urology is a safe, reproducible, cost-effective and minimally invasive treatment option for adrenal tumor, renal cell carcinoma and prostate carcinoma.
Collapse
|
45
|
Nucleant-mediated protein crystallization with microporous zeolite showing heteroepitaxial growth. Acta Crystallogr A 2008. [DOI: 10.1107/s0108767308092465] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
|
46
|
Salvage therapy with bicalutamide 80mg in patients with PSA failure under medical or surgical castration for prostate cancer. J Clin Oncol 2008. [DOI: 10.1200/jco.2008.26.15_suppl.16010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
|
47
|
Reduction of oxidative stress marker levels by anti-TNF-alpha antibody, infliximab, in patients with rheumatoid arthritis. Clin Exp Rheumatol 2008; 26:73-80. [PMID: 18328150] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
OBJECTIVE The aim of this study was to evaluate the effects of anti-TNF-alpha antibody, infliximab, on oxidative stress markers representing DNA damage, lipid peroxidation, and glycoxidation. METHODS Twenty-three RA patients underwent infliximab treatment and were analyzed for 30 weeks. Six patients who experienced side effects and one patient who had a reduced efficacy of infliximab were discontinued the infliximab treatment at 30-54 weeks. Sixteen patients were analyzed for 54 weeks. The levels of serum total, urinary total, and free pentosidine, which is an advanced glycation end-product (AGE), and of urinary 15-Isoprostane F2t and 8-hydroxy-deoxy guanosine (8-OHdG) were determined at baseline and at 14, 30, and 54 weeks after initial treatment with infliximab. RESULTS Serum total, urinary total, and free pentosidine levels were reduced at 54 weeks after initial infliximab treatment. Urinary 15-Isoprostane F2t and 8-OHdG levels were also reduced at 14, 30, and 54 weeks. Urinary 8-OHdG levels in RA patients correlated with CRP and the Disease Activity Score of 28 joints. CONCLUSION In RA patients, infliximab plays an essential role as an anti-oxidative agent against AGE formation, oxidative DNA damage and lipid peroxydation.
Collapse
|
48
|
Wavelet analysis for quantification of mental stress stage by finger-tip photo-plethysmography. ACTA ACUST UNITED AC 2007; 2007:1846-9. [PMID: 18002340 DOI: 10.1109/iembs.2007.4352674] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Wavelet analysis of the finger-tip photo-plethysmogram (PTG) was performed in order to quantify the stress stage. From the result of the wavelet transform of the PTG, we proposed stress index, with which quantification of the mental stress level was easy. In order to confirm the validity of this index, we compared the stress indexes between the stress and resting stages. The relationship between the stress index and the heart rate variability (HRV) was also investigated. The obtained results indicated that using the wavelet transform in analysis showed a remarkable change in the stress index from the resting stage to the stress stage. This change appears in the tidal wave area of the PTG.
Collapse
|
49
|
POS-02.22: Neoadjuvant low-dose chemoradiotherapy against muscle-invasive bladder cancer: Possible improvement of survival and favorable local control for bladder-preserved patients. Urology 2007. [DOI: 10.1016/j.urology.2007.06.762] [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]
|
50
|
POS-02.19: C-reactive protein predicts prognosis of muscle-invasive bladder cancer patients treated with chemoradiotherapy. Urology 2007. [DOI: 10.1016/j.urology.2007.06.759] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
|