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After injection of Molt-4-Luc cells into irradiated NCG mice, a gradual enhancement of luminescence in the xenografted mice was observed over time, while the body weight of the mice decreased. Compared with the control mice, the mice xenografted with β-arrestin1-overexpressing Molt-4 cells had significantly prolonged survival time (
< 0.001), while the survival time of the mice xenografted with Molt-4 cells with β- arrestin1 knockdown was significantly shortened (
< 0.001). Histological examination revealed fewer infiltrating tumor cells in the liver and spleen of the mice xenografted with β-arrestin1-overexpressing Molt-4 cells in comparison with the mice bearing parental Molt-4 cell xenografts.

β-arrestin1 overexpression suppresses tumor progression in mice bearing Molt-4 cell xenograft.
β-arrestin1 overexpression suppresses tumor progression in mice bearing Molt-4 cell xenograft.
To investigate the role of long-chain non-coding RNA MALAT1 in modulating paclitaxel resistance in breast cancer cells.

Breast cancer SK-BR-3 cells were treated with gradient concentrations of paclitaxel to induce paclitaxel resistance of the cells. The resistant cells were transfected with si-NC, si-MALAT1, pcDNA, pcDNA-MALAT1, miRNC, miR-485-3p mimics, si-MALAT1+anti-miR-NC, or si-MALAT1+anti-miR-485-3p
liposomes. check details Following the transfections, the cells were examined for changes in IC
of paclitaxel using MTT assay; the protein expression of P-gp, Bcl-2 and Bax were detected with Western blotting, and a dual luciferase reporter assay was used to detect the binding of MALAT1 to miR-485-3p.

Compared with paclitaxel-sensitive SK-BR-3 cells, paclitaxel-resistant SK-BR-3 cells showed significantly increased the IC
of paclitaxel with up-regulated MALAT1 expression and down-regulated miR-485-3p expression (
< 0.05). Silencing MALAT1 or overexpressing miR-485-3p obviously lowered the IC
of paclitaxel and the expression of P-gp and Bcl-2 and increased the expression of Bax in SK-BR-3/PR cells (
< 0.05). miR-485-3p was identified as the target of MALAT1, and inhibiting miR-485-3p significantly reverse the effect of MALAT1 silencing on IC
of paclitaxel and the expressions of P-gp, Bcl-2 and Bax in SK-BR-3/PR cells (
< 0.05).

MALAT1 can modulate paclitaxel resistance in breast cancer cells possibly by targeting miR-485-3p to down-regulate P-gp and Bcl-2 and up-regulate Bax.
MALAT1 can modulate paclitaxel resistance in breast cancer cells possibly by targeting miR-485-3p to down-regulate P-gp and Bcl-2 and up-regulate Bax.
To analyze the accuracy and positive rate of ultrasound-guided fine-needle aspiration (US-FNA) cytology for detecting suspected thyroid cancer nodules of different sizes.

A total of 591 patients with 594 suspected malignant thyroid nodules received examinations with US-FNA cytology. Based on their size, the nodules were divided into group I (4-5 mm), group II (6-10 mm), group III (>10 mm). With the results of pathology as the standard, we analyzed the results of US-FNA cytology for detecting thyroid carcinoma in terms of its accuracy, indeterminate rate, positive predictive value and negative predictive value for nodules of different sizes.

The positive rates in group I, group II and group III were 39.2% (40/102), 48.2% (172/357) and 65.2% (88/135), respectively, similar between groups I and II (
=0.107) and differed significantly between groups I and III (
=0.000) and between groups II and III (
=0.001). The accuracy, indeterminate rate, positive predictive value and negative predictive value in the 3 groups were 95.5% (21/22), 97.1% (100/103), and 94.4% (51/54); 2.9% (3/102), 2.8% (10/357), and 1.5% (2/135); 100%, 100%, and 98%; 66.7%, 57.1%, and 33.3%, respectively, showing no significant differences among the 3 groups.

The size of the thyroid nodules can affect the positive rate but does not have significant effects on the accuracy, indeterminate rate, positive predictive value or negative predictive value of US-FNA cytology.
The size of the thyroid nodules can affect the positive rate but does not have significant effects on the accuracy, indeterminate rate, positive predictive value or negative predictive value of US-FNA cytology.
To survey the residents for their understanding of Coronavirus Disease 2019 (COVID-19)-related knowledge, attitude and practices (KAP) in two hard hit provinces of China to facilitate the governmental decisions on strategies against the disease.

We invited the participants from Hubei and Henan Provinces of China for an internetbased survey starting from 1200 on February 21, 2020 to 1200 on February 23. The survey included the general conditions, KAP of COVID-19, psychological status and living conditions of the residents.

The effective response rate of the questionnaire was 98.9%. The mean (P25, P75) age of the participants was 19 (16, 40) years, and 54.3% of them were students. Social media were the most important source of information concerning the pandemic of the respondents. The respondents had a high awareness of person-to-person transmission of the virus through the respiratory tract or droplets but showed a relatively low level of awareness of the population susceptible to COVID-19 and its specind 93.1%, respectively. Women and groups with good knowledge of the disease reported better protective behaviors against the diseases (
< 0.05).

The residents in Hubei and Henan Provinces have generally good KAP related to COVID-19, and the online platforms plays a positive role to in circulating epidemic-related information. It is essential to further increase the supply of the protective materials and pay more attention to the mental health of the residents during the pandemic, and psychological counseling and psychological protection should be provided if necessary.
The residents in Hubei and Henan Provinces have generally good KAP related to COVID-19, and the online platforms plays a positive role to in circulating epidemic-related information. It is essential to further increase the supply of the protective materials and pay more attention to the mental health of the residents during the pandemic, and psychological counseling and psychological protection should be provided if necessary.
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