Erratum to "The Possibility of Changing the Wettability of Material Surface by Adjusting Gravity".

[This corrects the article DOI: 10.34133/2020/2640834.].

The Possibility of Changing the Wettability of Material Surface by Adjusting Gravity.

The contact angle, as a vital measured parameter of wettability of material surface, has long been in dispute whether it is affected by gravity. Herein, we measured the advancing and receding contact angles on extremely low contact angle hysteresis surfaces under different gravities (1-8G) and found that both of them decrease with the increase of the gravity. The underlying mechanism is revealed to be the contact angle hysteresis and the deformation of the liquid-vapor interface away from the solid surface caused by gradient distribution of the hydrostatic pressure.

Defining the regulatory role of programmed cell death 4 in laryngeal squamous cell carcinoma.

Programmed cell death 4 (PDCD4) is decreased in many different kinds of malignant tumors. EMT endows tumor cells invasive and metastatic properties. However, few studies have determined the role of PDCD4 in the regulation of EMT in the context of laryngeal carcinoma.

Cisplatin-induced necroptosis in TNFα dependent and independent pathways.

Cisplatin is a chemotherapeutic drug for treatment of many solid tumors. It has been shown to induce apoptosis and/or necrosis in different types of cancer cells. However, the underlying mechanisms remain elusive.

Measurement of contact angles in a simulated microgravity environment generated by a large gradient magnetic field.

The contact angle is an important parameter that is essential for studying interfacial phenomena. The contact angle can be measured using commercially available instruments. However, these well-developed instruments may not function or may be unsuitable for use in some special environments.

An ignored variable: solution preparation temperature in protein crystallization.

Protein crystallization is affected by many parameters, among which certain parameters have not been well controlled. The temperature at which the protein and precipitant solutions are mixed (i.e.

KISS1 methylation and expression as predictors of disease progression in colorectal cancer patients.

Aim: To examine the effect of aberrant methylation of the KISS1 promoter on the development of colorectal cancer (CRC) and to investigate reversing aberrant methylation of the KISS1 promoter as a potential therapeutic target.

Methods: KISS1 promoter methylation, mRNA expression and protein expression were detected by methylation-specific polymerase chain reaction (PCR), real-time quantitative PCR and Western blotting, respectively, in 126 CRC tissues and 142 normal colorectal tissues. Human CRC cells with KISS1 promoter hypermethylation and poor KISS1 expression were treated in vitro with 5-aza-2'-deoxycytidine (5-Aza-CdR).

Promoting protein crystallization using a plate with simple geometry.

Increasing the probability of obtaining protein crystals in crystallization screening is always an important goal for protein crystallography. In this paper, a new method called the cross-diffusion microbatch (CDM) method is presented, which aims to efficiently promote protein crystallization and increase the chance of obtaining protein crystals. In this method, a very simple crystallization plate was designed in which all crystallization droplets are in one sealed space, so that a variety of volatile components from one droplet can diffuse into any other droplet via vapour diffusion.

Sensitivity of lysozyme crystallization to minute variations in concentration.

It is well known that the crystallization of proteins is strongly dependent on the crystallization conditions, which are sometimes very sensitive to environmental disturbances. Parameters such as the concentration of precipitants or protein, pH, temperature and many others are known to affect the probability of crystallization, and the task of crystallizing a new protein often involves a trial-and-error test using numerous combinations of crystallization conditions. These crystallization parameters, such as the concentration of either the protein or the precipitant, are important because they directly affect the driving force of crystallization: the supersaturation of the solution.

[Critical illness polyneuropathy in a patient with Parkinson disease: a case report and review of the literature].

Objective: To report a case of critical illness polyneuropathy (CIP) with Parkinson disease and discuss the development, clinical features and early diagnosis of this condition.

Methods: The clinical data of a patient with CIP and Parkinson's disease and the relevant literature were reviewed.

Results: This case showed no typical disease course of sepsis, and the condition exacerbated rapidly.

[The heat shock protein 70-2 gene +1267(A/G) polymorphism and susceptibility to ankylosing spondylitis in Chinese Han population].

Objective: To investigate the association between the heat shock protein 70-2 gene polymorphism and ankylosing spondylitis (AS).

Methods: The polymorphisms of HSP70-2 gene Pst I 1267 site were analysed in 176 Chinese Han AS patients and 127 healthy controls by PCR and restriction fragment length polymorphisms(RFLP) methods.

Results: In AS patients HSP70-2 genotypes AA, AG and GG were 46.