Novel Environmentally Friendly RNAi Biopesticides: Targeting V-ATPase in Holotrichia parallela Larvae Using Layered Double Hydroxide Nanocomplexes.

RNA interference (RNAi)-based biopesticides offer an attractive avenue for pest control. Previous studies revealed high RNAi sensitivity in Holotrichia parallela larvae, showcasing its potential for grub control. In this study, we aimed to develop an environmentally friendly RNAi method for H. parallela larvae. The double-stranded RNA (dsRNA) of the V-ATPase-a gene (HpVAA) was loaded onto layered double hydroxide (LDH). The dsRNA/LDH nanocomplex exhibited increased environmental stability, and we investigated the absorption rate and permeability of dsRNA-nanoparticle complexes and explored the RNAi controlling effect. Silencing the HpVAA gene was found to darken the epidermis of H. parallela larvae, with growth cessation or death or mortality, disrupting the epidermis and midgut structure. Quantitative reverse transcription-polymerase chain reaction and confocal microscopy confirmed the effective absorption of the dsRNA/LDH nanocomplex by peanut plants, with distribution in roots, stems, and leaves. Nanomaterial-mediated RNAi silenced the target genes, leading to the death of pests. Therefore, these findings indicate the successful application of the nanomaterial-mediated RNAi system for underground pests, thus establishing a theoretical foundation for developing a green, safe, and efficient pest control strategy.

Moutai Distiller's grains Polyphenol extracts and rutin alleviate DSS-induced colitis in mice: Modulation of gut microbiota and intestinal barrier function （R2）.

Distiller's grains, byproducts of the brewing process, represent a valuable resource for extracting natural phenolic compounds due to their significant global production. This study presents the first evidence of the protective effects of Moutai distiller's grain polyphenol extract (MDGP) on dextran sulfate sodium (DSS)-induced colitis in mice. These protective effects manifest predominantly through the amelioration of general colitis indices and histopathological improvements. Utilizing liquid chromatography-high-resolution electrospray ionization mass spectrometry (LC-HR-ESI-MS), the main components of MDGP were identified as rutin, quercetin, naringenin, and dihydroquercetin. Moreover, a novel mechanism was elucidated by which rutin, the primary active component of MDGP, alleviates DSS-induced colitis. Assessment of intestinal barrier function, microbial sequencing, fecal transplantation, and antibiotic depletion experiments revealed that rutin suppresses the abundance of pathogenic bacteria (Helicobacter, Klebsiella, and Veillonella) while promoting the proliferation of beneficial bacteria (Ruminococcus_torques_group, Lachnoclostridium, and norank_f__Muribaculaceae). This modulation culminates in elevated butyric acid concentrations within short-chain fatty acids (SCFAs), amplified integrity of tight (ZO-1, occludin) and adherent (E-cadherin, ß-catenin) junctional complexes, fortified intestinal barrier function, and diminished intestinal inflammation.This investigation accentuates the innovative therapeutic potential of MDGP and its main active component, rutin, in assuaging DSS-induced intestinal inflammation and fortifying the intestinal barrier through a mechanism predominantly mediated by the intestinal microbiota. Such insights potentially elevate the prominence of distiller's grains in the realm of functional food development.

Prognostic value of preoperative neutrophil-to-lymphocyte ratio in histological variants of non-muscle-invasive bladder cancer.

PURPOSE: Many studies identified that the preoperative neutrophil-to-lymphocyte ratio (PNLR) was associated with patient prognosis in non-muscle-invasive bladder cancer (NMIBC). We hypothesized that PNLR could be prognostic in patients with histological variants of NMIBC (VH-NMIBC). MATERIALS AND METHODS: This retrospective study included patients with VH-NMIBC admitted at our center between January 2009 and May 2019. The best cut-off value of NLR was measured by the receiver operating characteristic curve and Youden index. The Kaplan-Meier method and Cox proportional hazard regression models were employed to evaluate the association between PNLR and disease prognosis, including recurrence-free survival (RFS), progression-free survival (PFS), cancer-specific survival (CSS), and overall survival (OS). RESULTS: A total of 243 patients with VH-NMIBC were enrolled in our study. According to the Kaplan-Meier method results, patients with PNLR ≥2.2 were associated with poor RFS (p<0.001), PFS (p<0.001), CSS (p<0.001), and OS (p<0.001). Multivariable analyses indicated that PNLR ≥ 2.2 was an independent prognostic factor of RFS (hazard ratio [HR], 2.11; 95% confidence interval [CI, 1.57-1.83; p<0.001), PFS (HR, 2.34; 95% CI, 1.70-3.21; p<0.001), CCS (HR, 2.87; 95% CI, 1.96-4.18; p< 0.001), and OS (HR, 2.83; 95% CI, 1.96-4.07; p<0.001). CONCLUSIONS: This study identified that PNLR ≥2.2 was usually associated with a poor prognosis for patients with VH-NMIBC.

Intrabullous Adhesion Pexia (IBAP) by Percutaneous Pulmonary Bulla Centesis: An Alternative for the Surgical Treatment of Giant Pulmonary Bulla (GPB).

Background and Objective: Most patients with giant pulmonary bulla (GPB) are treated by surgery; however, there is a subset for whom surgery is not a viable option, such as those with contraindications, or those unwilling to undergo operation. Therefore, an alternative minimally invasive method is desired for this subpopulation. The aim of this study was to explore an alternative procedure for treating GPB. Methods: This was a prospective, nonrandomized, single-arm, unblinded study evaluating the efficacy and safety of intrabulla adhesion pexia (IBAP) procedure in GPB patients. The study was conducted between December 2004 and April 2017. Results: There were 38 cases in 36 patients (33 males and 3 females) with the target GPB cavities varying in size (range, 10 cm × 7 cm × 5 cm to 15 cm × 8 cm × 30 cm (anteroposterior diameter × medial-lateral diameter × superoinferior diameter)). After IBAP treatment, the closure ratio of GPB in one month was 86.84% (33/38), while the dyspnea index significantly decreased from 4.11 ± 1.11 to 2.24 ± 1.15 (P < 0.01). In addition, the mean FEV1 (L) increased from 1.06 ± 0.73 to 1.57 ± 1.13 (P < 0.01), while RV (L) decreased from 2.77 ± 0.54 to 2.36 ± 0.38 (P < 0.01) and TLC (L) decreased from 6.46 ± 1.21 to 5.86 ± 1.08 (P < 0.01). Moreover, PaO2 (mmHg) increased from 52.18 ± 8.31 to 68.29 ± 12.34, while the 6 MWD increased by 129.36% from 131.58 ± 105.24 to 301.79 ± 197.90 (P < 0.01). Collectively, these data indicated significant improvement in pulmonary function and exercise tolerance after IBAP treatment. Furthermore, no deaths occurred during IBAP treatment, and no cases of aggravated GPB relapse were reported during the 12-month follow-up period. Conclusions: IBAP is a promising strategy for the treatment of GPB. Our findings demonstrated that IBAP had a noteworthy therapeutic effect, desirable safety, and ideal long-term efficacy for GPB.

[Influence of Renin-angiotensin System Blockage on Recurrence of Non-muscle-invasive Bladder Cancer].

OBJECTIVE: To investigate the effects of angiotensin-converting enzyme inhibitors (ACEIs) and angiotensin receptor blockers (ARBs) on the recurrence of non-muscle-invasive bladder cancer (NMIBC). METHODS: Clinical data of 388 patients with NMIBC undergoing transurethral resection of bladder tumor during Jan. 2009 to Dec. 2011 were retrospectively reviewed. Recurrence-free survival was analyzed, and the risk factors of recurrence were explored by Cox multivariate regression analysis. RESULTS: All patients were managed with postoperative intravesical chemotherapy, but 82 of them only received maintenance instillation without immediate instillation. There were 161 patients diagnosed of hypertension, 107 of them were treated with ACEIs or ARBs. No significant differences in age, sex, history of smoking, pathological stage, pathological grade, tumor diameter and post-operation immediate instillation were observed between the patients treated with (drug-use group) or without ACEIs/ARBs (control group). There was also no statistically significant difference among aforementioned indexes after the stratification by hypertension and medication (ACEIs/ARBs). During a median follow up of 60 months, there were 36 and 129 patients found recurrence in drug-use group and control group, respectively. The recurrence free survival times of the patients treated with and without ACEIs/ARBs were (48.43±23.50) and (41.15±23.64) months, respectively (P=0.007). The 5-year recurrence-free survival rate was 66.36% in drug-use group and 54.09% in the controls (P=0.027). Multivariate regression analysis revealed that no ACEIs/ARBs treatment [standardized regression coefficient (ß) =0.174] was independent risk factor of recurrence (P<0.05). The weight of no ACEIs/ARBs treatment was behind to no immediate instillation (ß=0.131), tumor multiplicity (ß=0.128), tumor diameter ≥3 cm (ß=0.193), grade 3 tumor (ß=0.181), and smoking status (ß=0.191). CONCLUSION: Theadministration of ACEIs/ARBs may decrease the recurrence of NMIBC after transurethral resection of bladder tumor.

Alcohol intake and risk of erectile dysfunction: a dose-response meta-analysis of observational studies.

The purpose of the present study was to conduct a meta-analysis of cross-sectional studies assessing the relationship between alcohol consumption and the risk of erectile dysfunction (ED). To identify relevant studies, databases such as Pubmed, Medline, Embase, and the Cochrane Library were searched from the inception of the present study to March 2016. Finally, 24 studies (154,295 patients) were included. We combined a study-specific odds ratio (OR) estimated by using a random effects meta-analysis. The results of our meta-analysis indicated that light to moderate alcohol consumption (<21 drinks/week) was correlated with a decreased risk of erectile dysfunction (OR = 0.71; 95% CI: 0.59-0.86; P = 0.000). However, regular (ever vs. never) and high alcohol consumption (>21 drinks/week) had no significant influence on the prevalence of ED (regular: OR = 0.87; 95% CI: 0.75-1.07; P = 0.062; high: OR = 0.99; 95% CI: 0.80-1.22; P = 0.893). In a dose-response meta-analysis, a non-linear relationship was observed between alcohol consumption and risk of ED (P for non-linearity = 0.0000). In conclusion, moderate intake of alcohol exhibited a beneficial effect on the risk of ED, whereas regular and high consumption did not.

Peritoneum as the sole distant metastatic site of lung adenosquamous cell carcinoma: a case report.

BACKGROUND: Peritoneum metastasis of lung cancer is a rare event which, in addition to the peritoneum, usually involves multiple metastatic tissues. Here we report a case of a patient with lung adenosquamous cell carcinoma with the peritoneum as the sole distant metastatic site. CASE PRESENTATION: An 82-year-old Han Chinese man, in the teaching profession, was diagnosed with lung adenosquamous cell carcinoma in the upper lobe of his left lung with the involvement of ipsilateral hilar and mediastinal lymph nodes, and was initially staged as IIIa (cT2N2M0). Molecular testing identified a mutation at KRAS G12A. Due to his poor physical condition, our patient was given gamma knife radiotherapy with a total dose of 28.0 Gy. Two weeks later, our patient was diagnosed as peritoneal metastasis identified by using magnetic resonance imaging and confirmed with ascitic cytology and peritoneal histology. No other distant metastatic sites such as liver, brain, bone, paranephroi, and lungs were found. Subsequently, our patient received palliative intraperitoneal chemotherapy, and died within 2 months. CONCLUSIONS: Our patient represented a rare case of lung adenosquamous cell carcinoma harboring the KRAS G12A mutation, which metastasized distantly to the peritoneum only, and progressed rapidly.

[Detection of Circulating Tumor Cells in Bladder Cancer by Subtraction Enrichment and Immunostaining-fluorescence in situ Hybridization].

OBJECTIVE: To detect circulating tumor cells (CTCs) in peripheral blood from the patients with bladder cancer using subtraction enrichment and immunostaining-fluorescence in situ hybridization (SE-iFISH) and to explore the relation between CTCs detection result and the clinicpathological parameters of tumors. METHODS: Sixteen patients [(66.88±8.97) yr.] with bladder cancerwere included, whlile 10 normal people [(61.90±9.13) yr.] were enrolled as control. Peripheral blood was harvested (6 mL per case) for the detection of CTCs with the method of subtraction enrichment and SE-iFISH, and the correlations of CTCs level to the clinicpathological parameters of tumors were analyzed, including hematuria, size, number, NMIBC or MIBC, stage, grade and pathological type. RESULTS: Positive rates of CTCs in experimental and control group were 43.75% (7/16) and 0% (0/10), respectively. The difference was statistically significant (P=0.022 7). The number of CTCS was not associated with the clinicpathological parameters of bladder cancer, which probably due to small sample size. CONCLUSION: It is applicable to detect CTCs of bladder cancer by SE-iFISH.

Depth-dependent strain fields of articular cartilage under rolling load by the optimized digital image correlation technique.

It is significant to investigate the depth-dependent mechanical behaviors of articular cartilage under rolling load since considerable rolling occurs for cartilage joint in activities of daily living. In this study, the rolling experiments of articular cartilage were conducted by applying an optimized digital image correlation (DIC) technique for the first time and the depth-dependent normal strain and shear strain of cartilage were analyzed. It is found that the normal strain and shear strain values of different layers increase firstly and then decrease with rolling time, and they increase with increasing compressive strains. The normal strain and shear strain values decrease along cartilage depth with constant compressive strain. The normal strain values of different normalized depth decrease with increasing rolling rates. The shear strain values of superficial layer and middle layer decrease; however there are no major changes for the shear strain values of deep layer with increasing rolling rates. The normal strain values with different rolling time increase with increasing rolling numbers and the 30.6% increase in initial normal strain is observed from 1st to 99th cycle. The fitting relationship of the normal strain and normalized depth was obtained considering the effects of compressive strain and rolling rate and the fitting curves agree with the experimental results for cartilage very well.

Image processing and classification algorithm for yeast cell morphology in a microfluidic chip.

The study of yeast cell morphology requires consistent identification of cell cycle phases based on cell bud size. A computer-based image processing algorithm is designed to automatically classify microscopic images of yeast cells in a microfluidic channel environment. The images were enhanced to reduce background noise, and a robust segmentation algorithm is developed to extract geometrical features including compactness, axis ratio, and bud size. The features are then used for classification, and the accuracy of various machine-learning classifiers is compared. The linear support vector machine, distance-based classification, and k-nearest-neighbor algorithm were the classifiers used in this experiment. The performance of the system under various illumination and focusing conditions were also tested. The results suggest it is possible to automatically classify yeast cells based on their morphological characteristics with noisy and low-contrast images.

[Clinical classification of 288 cases of bronchial tuberculosis based on an expert consensus].

OBJECTIVE: To study the clinical application and significance of the recently published expert consensus on endobronchial tuberculosis (EBTB). METHODS: A retrospective analysis of 288 cases of EBTB hospitalized in Tianjin Haihe Hospital from May 2005 to April 2010 was carried out. The classification and typing of the disease were based on a consensus report recently published by Chinese Journal of Tuberculosis and Respiratory Diseases. Chi-square test was performed to analyze the differences between groups. RESULTS: Of the 288 cases of EBTB, 47.9% (138/288) was classified as Type I (Inflammatory infiltrative), 33.3% (96/288) as Type II (ulcerous necrotic), 5.2% (15/288) as Type III (granulomatous hyperplastic), 7.3% (21/288) as Type IV (scar stricture) and 0.4% (1/288) as Type V (Bronchomalacia), respectively. There were 17 cases (5.9%) classified as a mixed type with a combination of Type IV or Type V disease with 1 or more of the other types. 37.5% (108/288) of the patients were young females, while young and middle-aged patients with type I and type II diseases accounted for 74.7% (215/288) of the cases, much more than old aged patients (6.6%, 19/288). 97.2% (n=280) of the cases suffered from secondary pulmonary tuberculosis. In 107 cases, the disease was located in the left, 162 cases in the right, while in 109 cases the right upper lobe bronchus was involved, and right main bronchus in 36 cases, 3 cases and 58 cases in left upper lobe with and without lingular segment, 10 cases in lingular segment only. Chest CT showed that local mucosal thickening of the trachea or bronchus was evident in 40.3% (116/288); toothed or spike protuberance in 30.9% (89/288), bronchial obstruction in 11.1% (32/288), and bronchial stenosis in 87.9% (253/288). The negative rate of sputum in the first month after interventional therapy was 60.2% (56/93), significantly higher than that in non-interventional therapy group (23.1%, 18/78). CONCLUSION: The new consensus report on EBTB was clinically useful for classification and typing of the disease, and for the selection of treatment modalities.