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1.
Mol Genet Genomic Med ; : e1022, 2019 Nov 06.
Artigo em Inglês | MEDLINE | ID: mdl-31692290

RESUMO

BACKGROUND: Pituitary adenomas (PAs) are one of the most common intracranial tumors; approximately half of PAs are prolactin (PRL)-secreting PAs (prolactinomas). The genetic alterations prevalent in prolactinomas are unknown. METHODS: Here, we present a patient with an extremely aggressive and giant prolactinoma accompanied by serious destruction of the surrounding bone mass. This patient exhibited resistance to dopaminergic drugs. Through whole-genome sequencing, we identified two novel somatic mutations in the POU6F2 gene (NM_001166018.2: c. 839 C>T; NM_001166018.2: c. 875A>G). RESULTS: This report is the first to identify these somatic mutations in the POU6F2 gene in a prolactinoma. We found that these two mutations obviously decreased the expression level of POU6F2. Inhibition of POU6F2 activity increased the cell proliferation and PRL secretion in rat pituitary cells, but proliferation and PRL secretion were decreased in cells with POU6F2 overexpression. CONCLUSIONS: POU6F2 might play a crucial role in the development of prolactinomas and may be a promising target for developing new therapies against prolactinomas.

2.
Artigo em Inglês | MEDLINE | ID: mdl-31613776

RESUMO

Genome sequencing is one of the most challenging problems in computational biology and bioinformatics. As a traditional algorithm, the string match meets a challenge with the development of the massive volume of data because of gene sequencing. Surveys show that there will be a huge amount of short read segments during the process of gene sequencing and the need for a highly efficient is urgent. As a classic fast and exact single pattern matching algorithm, Knuth-Morris-Pratt (KMP) algorithm has been demonstrated in network security and computational biology. However, with the increasing amount of data in the modern society, it becomes increasingly important and essential to provide a High-performance implementation of KMP algorithm. In this paper, we implement a scalable KMP accelerator based on FPGA, named GeneKMP. The accelerator is composed of different computing units to achieve a pipelined organization for higher throughput with satisfying scalability. A novel programming model is provided to alleviate the burden of the high-level programmers. We provide a greedy-based partitioning algorithm for the software/hardware design paradigms. Experimental results on the state-of-the-art Xilinx FPGA hardware prototype show that our accelerator can achieve up to a promising speedup with insignificant hardware cost and power consumption.

3.
Chemistry ; 2019 Oct 10.
Artigo em Inglês | MEDLINE | ID: mdl-31602719

RESUMO

The functionalization of natural 1D architectures is dependent on hierarchically inner nanostructures. However, the artificial supramolecular nanofibers or nanotubes were rarely developed with complex inner structures. Inspired by biomimetic strategy, single-molecule-diameter nanofibers of double-decker phthalocyanine (EuPc2) with compartmentalized internal space and fantastic electrochemical features were developed upon air/water interfacial assembly with poly-L-lysine. EuPc2/poly-L-lysine nanofibers can be electrochemical sensors both in water and gas phase and have the best analytical performances for nitrite among all the porphyrins or phthalocyanines monomers and assemblies. Imbedding nitrite in compartments not only promotes the sensing but also changes the supramolecular chirality of nanofibers, and the morphological dependent sensing properties of EuPc2 assemblies in water are different from that of in the gas phase. These results suggest the unprecedented properties for diverse applications of artificial 1D architectures containing complex inner nanostructures.

4.
Biomed Pharmacother ; 120: 109352, 2019 Oct 03.
Artigo em Inglês | MEDLINE | ID: mdl-31586905

RESUMO

Inflammatory monocyte and macrophage subset accumulation during the inflammatory response that drives atherosclerosis can exacerbate the extent of atherosclerosis. It has been demonstrated that voltage-gated sodium channels (VGSCs) can regulate cell bioactivities in monocytes/macrophages. We hypothesized that blockade of mononuclear phagocyte VGSCs was atheroprotective through monocyte/macrophage subset modulation and macrophage proliferation suppression in atherosclerotic lesions. In this experimental study, when VGSCs were knocked down with RNA interference plasmid transfection in mouse peripheral blood monocytes and monocyte-macrophage lineage RAW264.7 cells in vitro, the biological characteristics of proliferation, phagocytosis, and migration in RAW264.7 cells declined. In addition, suppression of LPS-induced M1 polarization and facilitation of IL-4-induced M2 polarization were also observed. In an in vivo study, ApoE knockout (ApoE-/-) mice were fed a standard chow diet (CD) or a western diet (WD). After feeding with phenytoin (PHT), no significant differences were detected in plasma lipids, and the anti-inflammatory phenotypes of both monocytes and macrophages were elevated and proinflammatory phenotypes declined. The local proliferation of macrophages was also distinctly suppressed, along with a significant reduction in atheromatous plaques. In conclusion, blockade of VGSCs in the mononuclear phagocyte system reduced atherosclerotic lesions, which may occur through altering monocyte/macrophage subsets and suppressing macrophage proliferation in atherosclerotic plaques. Blockage of VGSCs may play an important role in cardiovascular protection.

5.
BMC Infect Dis ; 19(1): 770, 2019 Sep 03.
Artigo em Inglês | MEDLINE | ID: mdl-31481020

RESUMO

BACKGROUND: We sought to assess reporting in China's Pneumonia of Unknown Etiology (PUE) passive surveillance system for emerging respiratory infections and to identify ways to improve the PUE surveillance system's detection of respiratory infections of public health significance. METHODS: From February 29-May 29, 2016, we actively identified and enrolled patients in two hospitals with acute respiratory infections (ARI) that met all PUE case criteria. We reviewed medical records for documented exposure history associated with respiratory infectious diseases, collected throat samples that were tested for seasonal and avian influenza, and interviewed clinicians regarding reasons for reporting or not reporting PUE cases. We described and analyzed the proportion of PUE cases reported and clinician awareness of and practices related to the PUE system. RESULTS: Of 2619 ARI admissions in two hospitals, 335(13%) met the PUE case definition; none were reported. Of 311 specimens tested, 18(6%) were seasonal influenza virus-positive; none were avian influenza-positive. < 10% PUE case medical records documented whether or not there were exposures to animals or others with respiratory illness. Most commonly cited reasons for not reporting cases were no awareness of the PUE system (76%) and not understanding the case definition (53%). CONCLUSIONS: Most clinicians have limited awareness of and are not reporting to the PUE system. Exposures related to respiratory infections are rarely documented in medical records. Increasing clinicians' awareness of the PUE system and including relevant exposure items in standard medical records may increase reporting.

6.
Appl Opt ; 58(24): 6618-6621, 2019 Aug 20.
Artigo em Inglês | MEDLINE | ID: mdl-31503593

RESUMO

We demonstrate here femtosecond pulses output from a rotary Nd:glass disk laser, mode-locked with semiconductor saturable absorber mirrors. We obtained an average output power of 0.66 W in cw operation and an average output power of 0.49 W with a duration of 324 fs in mode-locked operation in the case of an absorbed pump power of 7.3 W. To the best of our knowledge, it is the first time that sub-picosecond pulses have been obtained from rotary Nd:glass disk lasers. It shows a new concept for all-solid-state mode-locked glass lasers with high power.

7.
Opt Lett ; 44(18): 4617, 2019 Sep 15.
Artigo em Inglês | MEDLINE | ID: mdl-31517945

RESUMO

In this erratum, the function z(θ) in equation (7) of Opt. Lett.44, 2843 (2019)OPLEDP0146-959210.1364/OL.44.002843 has been corrected.

8.
Bioresour Technol ; 293: 122065, 2019 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-31479854

RESUMO

A solid acid catalyst SO42-/SnO2-Al2O3-CFA was synthesized based on industrial waste coal fly ash (CFA) as carrier and applied in the conversion of oxalic acid pretreated corn stover hydrolysate to produce furfural. Physical properties of the solid acid catalyst were characterized by SEM, FTIR, XRD, BET, EDAX, and NH3-TPD. Highly wrinkled structure of SO42-/SnO2-Al2O3-CFA could provide more specific surface area for the covalent linkage between SiO2 and SnO2. Factors influencing the efficacy of SO42-/SnO2-Al2O3-CFA were systematically explored. The highest furfural yield of 84.7% was reached in NH4Cl-toluene biphasic system at 180 °C for 30 min. The recyclability of SO42-/SnO2-Al2O3-CFA and toluene could be achieved for five batches with stable performance in transformation of xylose-rich corn stover hydrolysate. This study provided a novel solid acid catalyst with promising potential in the synthesis of furfural from corn stover.


Assuntos
Furaldeído , Zea mays , Carvão Mineral , Cinza de Carvão , Dióxido de Silício
9.
Environ Technol ; : 1-10, 2019 Oct 09.
Artigo em Inglês | MEDLINE | ID: mdl-31560610

RESUMO

With their wide application, some nanomaterials entering into the environment and made effects in many ways. Different concentrations of Fe3O4 nanoparticles (NPs) were added (0, 100, 200, 400 and 600 mg/L) in this study, the changes of substance in three stages of anaerobic digestion (AD) were explored, the optimal dosage of Fe3O4 NPs was finally found. The results showed that the 200 mg/L Fe3O4 NPs could better promote the decomposition of organic matter than the other groups, the protein and polysaccharide degradation rate reached to 99.75% and 83.14%, respectively. In the acidogenesis stage, the acetic acid concentration reached up to 692.88 mg/L, increased by 31.8% compared with the control group. Fe3O4 NPs had also been proved to increase VFAs, finally made the methane content reach to 92.22%. The variation of coenzyme F420 had also been described in this research, the highest value was 1.83 Umol/g VS. These results showed that the different concentrations of Fe3O4 NPs had different effects on anaerobic digestion.

10.
Br J Cancer ; 121(8): 640-646, 2019 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-31523058

RESUMO

BACKGROUND: Small-cell lung cancer (SCLC) remains an aggressive cancer with short-term survival due to limited therapeutic options. Apatinib is a small-molecule tyrosine kinase inhibitor that selectively inhibits vascular endothelial growth factor receptor-2. This study aimed to investigate the efficacy and safety of apatinib in patients with extensive-stage (EC) SCLC who had progressed after two or three previous therapies. METHODS: Eligible patients were histologically confirmed ES-SCLC after two or three previous treatments, including a platinum-based regimen. Patients received apatinib at an initial dose of 500 mg once daily. The primary endpoint was the objective response rate. RESULTS: Forty patients were enrolled. At the data cut-off time (November 15, 2018), the median follow-up was 7.4 months; no patients remained on treatment, and five were still in follow-up. An objective response was achieved in 7 of 40 patients (17.5%) in the intention-to-treat population, and 7 of 38 patients (18.4%) in the per-protocol population. The median progression-free survival and overall survival were 3.0 months and 5·8 months, respectively. The most commonly observed grade 3 or greater treatment-related adverse events were hypertension, hand-foot syndrome, increased L-gamma-glutamyltransferase. CONCLUSIONS: Apatinib exhibited efficacy and an acceptable safety profile in previously heavily-treated ES-SCLC patients. Further exploration of apatinib in phase III trials is warranted. TRIAL REGISTRATION: NCT02945852.

11.
Plant J ; 2019 Sep 17.
Artigo em Inglês | MEDLINE | ID: mdl-31529551

RESUMO

CG methylation (m CG) is essential for preserving genome stability in mammals, but this link remains obscure in plants. OsMET1-2, a major rice DNA methyltransferase, plays critical roles in maintaining m CG in rice. Null mutation of OsMET1-2 causes massive CG hypomethylation, rendering the mutant suitable to address the role of m CG in maintaining genome integrity in plants. Here, we analyzed m CG dynamics and genome stability in tissue cultures of OsMET1-2 homozygous (-/-) and heterozygous (+/-) mutants, and isogenic wild-type (WT). We found m CG levels in cultures of -/- were substantially lower than in those of WT and +/-, as expected. Unexpectedly, m CG levels in 1- and 3-year cultures of -/- were 77.6% and 48.7% higher, respectively, than in shoot, from which the cultures were initiated, suggesting substantial regain of m CG in -/- cultures, which contrasts to the general trend of m CG loss in all WT plant tissue cultures hitherto studied. Transpositional burst of diverse transposable elements (TEs) occurred only in -/- cultures, although no elevation of genome-wide mutation rate in the form of single nucleotide polymorphisms was detected. Altogether, our results establish an essential role of m CG in retaining TE immobility and hence genome stability in rice and likely in plants in general.

12.
Med Gas Res ; 9(3): 122-126, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-31552874

RESUMO

Cognitive deficits are a devastating neurological outcome seen in survivors of cardiac arrest. We previously reported water electrolysis derived 67% hydrogen gas inhalation has some beneficial effects on short-term outcomes in a rat model of global brain hypoxia-ischemia induced by asphyxia cardiac arrest. In the present study, we further investigated its protective effects in long-term spatial learning memory function using the same animal model. Water electrolysis derived 67% hydrogen gas was either administered 1 hour prior to cardiac arrest for 1 hour and at 1-hour post-resuscitation for 1 hour (pre- & post-treatment) or at 1-hour post-resuscitation for 2 hours (post-treatment). T-maze and Morris water maze were used for hippocampal memory function evaluation at 7 and 14 days post-resuscitation, respectively. Neuronal degeneration within hippocampal Cornu Ammonis 1 (CA1) regions was examined by Fluoro-Jade staining ex vivo. Hippocampal deficits were detected at 7 and 18 days post-resuscitation, with increased neuronal degeneration within hippocampal CA1 regions. Both hydrogen gas treatment regimens significantly improved spatial learning function and attenuated neuronal degeneration within hippocampal CA1 regions at 18 days post-resuscitation. Our findings suggest that water electrolysis derived 67% hydrogen gas may be an effective therapeutic approach for improving cognitive outcomes associated with global brain hypoxia-ischemia following cardiac arrest. The study was approved by the Animal Health and Safety Committees of Loma Linda University, USA (approval number: IACUC #8170006) on March 2, 2017.

13.
Thorac Cancer ; 10(11): 2161-2167, 2019 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-31556243

RESUMO

BACKGROUND: In recent years, diagnosis of early squamous cell carcinoma of the esophagus has been increasingly emphasized. The application of endoscopic submucosal dissection (ESD) has enabled safe resection of esophageal lesions. Minimally invasive esophagectomy (MIE) is also safe and feasible for early stages of the cancer. This study aimed to compare the therapeutic effects of early esophageal carcinoma treatment, and find the best predictive factor for the selection of treatment for T1a patients. METHODS: We performed a retrospective study of early-stage patients admitted to Tianjin Medical University Cancer Institute and Hospital between January 2015 and December 2018. A total of 128 patients underwent MIE, while 78 patients underwent ESD. The depth of the tumor invasion, lymph node metastasis, and complications were compared between the two groups. RESULTS: In the ESD group, 76.92% of the patients were stage T1a, while 34.38% in the MIE group were stage T1a. The lymph node metastasis rate was 16.41% in the MIE group (6.98% in T1a stage), which related to tumor differentiation, tumor length (≥37.5 mm), depth of invasion, and angiolymphatic invasion. However, the R0 resection rate was only 73.08% in the ESD group. Comprehensive analysis of all T1 patients in the two groups revealed that the positive margin was related to tumor differentiation, tumor width (≥13.5 mm), and depth of invasion (≥3.25 mm). CONCLUSION: For early-stage cases, lymph node metastasis and positive margins are risk factors affecting long-term survival. Efficient predictive factors mentioned in our study would provide a proper indication for treatment strategy selection.

14.
Nat Commun ; 10(1): 3804, 2019 Aug 23.
Artigo em Inglês | MEDLINE | ID: mdl-31444326

RESUMO

Copper-based asymmetric photocatalysis has great potential in the development of green synthetic approaches to chiral molecules. However, there are several formidable challenges associated with such a conception. These include the relatively weak visible light absorption, short excited-state lifetimes, incompatibility of different catalytic cycles, and the difficulty of the stereocontrol. We report here an effective strategy by means of single-electron-transfer (SET) initiated formation of radicals and photoactive intermediates to address the long-standing problems. Through elaborate selection of well-matched reaction partners, the chiral bisoxazoline copper catalyst is engaged in the SET process, photoredox catalysis, Lewis acid activation and asymmetric induction. Accordingly, a highly enantioselective photocatalytic α-aminoalkylation of acyclic imine derivatives has been accessed. This strategy sheds light on how to make use of diverse functions of a single transition metal catalyst in one reaction, and offers an economic and simplified approach to construction of highly valuable chiral vicinal diamines.

15.
G3 (Bethesda) ; 9(10): 3079-3085, 2019 10 07.
Artigo em Inglês | MEDLINE | ID: mdl-31462444

RESUMO

Cotton is an agriculturally important crop. Because of its importance, a genome sequence of a diploid cotton species (Gossypium raimondii, D-genome) was first assembled using Sanger sequencing data in 2012. Improvements to DNA sequencing technology have improved accuracy and correctness of assembled genome sequences. Here we report a new de novo genome assembly of G. raimondii and its close relative G. turneri The two genomes were assembled to a chromosome level using PacBio long-read technology, HiC, and Bionano optical mapping. This report corrects some minor assembly errors found in the Sanger assembly of G. raimondii We also compare the genome sequences of these two species for gene composition, repetitive element composition, and collinearity. Most of the identified structural rearrangements between these two species are due to intra-chromosomal inversions. More inversions were found in the G. turneri genome sequence than the G. raimondii genome sequence. These findings and updates to the D-genome sequence will improve accuracy and translation of genomics to cotton breeding and genetics.

16.
Int J Immunopathol Pharmacol ; 33: 2058738419861777, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-31266422

RESUMO

This study aims to study the potentials of sulforaphane (SFN) against retinal ischemia/reperfusion (I/R) injury. A rat retinal I/R injury method was established. Retinal thickness change and retinal ganglion cell (RGC) death were determined using hematoxylin and eosin (H&E) staining and Fluoro-Gold (FG) labeling. The inflammatory cytokines production and microglia activation were evaluated by using quantitative real-time polymerase chain reaction (qRT-PCR), Western blot, and enzyme-linked immunosorbent assay (ELISA). Knockdown NLRP3 was performed, and the according changes of retinal RGCs were assessed. SFN administration significantly inhibited I/R and caused retinal thickness change and prevented RGCs death in retinal I/R model. SFN suppressed inflammatory cytokines production, microglia activation, and inflammasome activation. In accordance, NLRP3 knockdown presented the similar inhibitory effect on I/R rats. This study demonstrates that SFN prevents RGCs death and acts as a potent neuroprotective modulator in retinal I/R injury, which may be associated with inhibition of the NLRP3 inflammasome activation.

17.
Zoonoses Public Health ; 66(7): 879-885, 2019 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-31334609

RESUMO

Understanding the socioeconomic burden of severe fever with thrombocytopenia syndrome (SFTS) is important for making decisions on health resources allocation. This study aimed to assess the economic burden of patients with this syndrome in endemic areas of the Anhui Province in 2018. A total of 114 patients were recruited, and the median age was 63.5 years, 62 (54.4%) were female, 97 (85.1%) were farmers, 108 (94.7%) were survival patients, and 71 (62.3%) had a family monthly income less than $453.3. The median times of hospital visits and hospitalizations of patients were three times, and the median lost work days of these patients, caregivers and visitors were 14.5 days, 14.5 days and 7.5 days, respectively. The median direct costs of the patient were $3,761.6, and the median indirect costs were $508.3. Taking direct and indirect costs into consideration, the median total economic costs of patients were $4,323.9, and the total annual cost of 2018 was $1,396,913.6. Although 113 (99.1%) patients had medical insurance, only 25.8% of costs were covered by reimbursement, and the total cost paid for by the patients and their families was $1,041,073.6 in 2018. Our findings revealed that the patients and their families had a significant economic burden, and preventive measures should be strengthened in endemic areas. The findings also provided baseline data for assessing the cost-effectiveness of the vaccines or anti-viral drugs in the near future in China.

18.
Am J Trop Med Hyg ; 101(3): 549-554, 2019 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-31333151

RESUMO

Infectious diarrhea cases have increased during the past years in the Anhui Province of China, but little is known about its spatial cluster pattern and associated socioeconomic factors. We obtained county-level total cases of infectious diarrhea in 105 counties of Anhui in 2016 and computed age-adjusted rates. Socioeconomic factors were collected from the Statistical Yearbook. Hot spot analysis was used to identify hot and cold spot counties for infectious diarrhea incidence. We then applied binary logistic regression models to determine the association between socioeconomic factors and hot spot or cold spot clustering risk. Hot spot analysis indicated there were both significant hot spot (29 counties) and cold spot (18 counties) clustering areas for infectious diarrhea in Anhui (P < 0.10). Multivariate binary logistic regression results showed that infectious diarrhea hot spots were positively associated with per capita gross domestic product (GDP), with an adjusted odds ratio (AOR): 3.51, 95% CI: 2.09-5.91, whereas cold spots clustering were positively associated with the number of medical staffs (AOR: 1.18, 95% CI: 1.08-1.29) and negatively associated with the number of public health physicians (AOR: 0.27, 95% CI: 0.09-0.86). We identified locations for hot and cold spot clusters of infectious diarrhea incidence in Anhui, and the clustering risks were significantly associated with health workforce resources and the regional economic development. Targeted interventions should be carried out with considerations of regional socioeconomic conditions.

19.
Ann Thorac Surg ; 108(4): 1072-1079, 2019 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-31163131

RESUMO

BACKGROUND: In this retrospective study, we evaluated the safety and efficacy of video-assisted thoracic surgery (VATS) sleeve lobectomy for patients with centrally located non-small cell lung cancer. METHODS: All consecutive patients who received VATS sleeve lobectomy (n = 54) and thoracotomy sleeve lobectomy (n = 94) were analyzed retrospectively; after propensity score matching, 78 paired cases were selected for further statistical analysis. RESULTS: Among all patients, the VATS group showed significantly better recurrence-free survival and overall survival than the thoracotomy group (P = .025 and P = .026, respectively) with smaller total tumor size and earlier pathological tumor-node-metastasis (TNM) stage. Nevertheless, after matching, the recurrence-free survival (50.9% vs 48.7%; P = .445) and overall survival (79.5% vs 66.7%; P = .198) were not significantly different. There was significantly less blood loss (228 vs 246 mL; P = .022), shorter thoracic drainage stay (4.6 vs 6.8 days; P < .001), and postoperative hospital stay (9.2 vs 11.3 days; P = .033) in the VATS group. Multivariate Cox analyses demonstrated that the surgical procedure was not an independent prognostic factor for recurrence-free survival, not only for patients with an invasive component size of 3 cm or less and negative lymphatic invasion, but for locally advanced patients with an invasive tumor size >3 cm (hazard ratio: 0.94; 95% confidence interval: 0.36-2.45; P = .55) or positive lymphatic invasion (hazard ratio: 0.91; 95% confidence interval: 0.35-2.39; P = .41). CONCLUSIONS: VATS sleeve lobectomy is a safe and effective procedure associated with better postoperative recovery and equivalent oncological results, even for locally advanced non-small cell lung cancer patients with an invasive tumor size larger than 3 cm or accompanying lymphatic invasion.

20.
Genes (Basel) ; 10(6)2019 06 17.
Artigo em Inglês | MEDLINE | ID: mdl-31212970

RESUMO

Pleurotus tuoliensis (Pt) and P. eryngii var. eryngii (Pe) are important edible mushrooms. The epigenetic and gene expression signatures characterizing major developmental transitions in these two mushrooms remain largely unknown. Here, we report global analyses of DNA methylation and gene expression in both mushrooms across three major developmental transitions, from mycelium to primordium and to fruit body, by whole-genome bisulfite sequencing (WGBS) and RNA-seq-based transcriptome profiling. Our results revealed that in both Pt and Pe the landscapes of methylome are largely stable irrespective of genomic features, e.g., in both protein-coding genes and transposable elements (TEs), across the developmental transitions. The repressive impact of DNA methylation on expression of a small subset of genes is likely due to TE-associated effects rather than their own developmental dynamics. Global expression of gene orthologs was also broadly conserved between Pt and Pe, but discernible interspecific differences exist especially at the fruit body formation stage, and which are primarily due to differences in trans-acting factors. The methylome and transcriptome repertories we established for the two mushroom species may facilitate further studies of the epigenetic and transcriptional regulatory mechanisms underpinning gene during development in Pleurotus and related genera.

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