OCT-based quantitative predictors of coronary dissection during rotational atherectomy in severe calcified lesions.

Background: In the treatment of coronary calcification by rotational atherectomy (ROTA), guidewire bias is often considered to lead to procedure-associated coronary dissections or perforations. However, the actual meaning of guidewire bias is unclear, though it usually refers to the cross-sectional location of the intravascular imaging (IVI) catheter in the coronary artery. This study tentatively explores the quantitative criteria in optical coherence tomography (OCT) imaging of guidewire bias, which may cause ROTA-induced coronary dissection.

Magnetic resonance imaging-based lymph node radiomics for predicting the metastasis of evaluable lymph nodes in rectal cancer.

Background: Lymph node (LN) staging in rectal cancer (RC) affects treatment decisions and patient prognosis. For radiologists, the traditional preoperative assessment of LN metastasis (LNM) using magnetic resonance imaging (MRI) poses a challenge.

Aim: To explore the value of a nomogram model that combines Conventional MRI and radiomics features from the LNs of RC in assessing the preoperative metastasis of evaluable LNs.

The association between dioxins and steroid hormones in general adult males: a cross-sectional study in an e-waste region of China.

As observed among residents in electronic waste (e-waste) recycling areas, dioxins can disrupt the homeostasis of endocrine hormones and the balance of thyroid hormones. Few studies, however, have examined whether e-waste recycling activities influence steroid hormone equilibrium in the general adult male population. This study evaluated the association between steroid hormones and the physical burdens of dioxins in the general adult male population residing in an e-waste region.

[Identification of endophytic actinomycete St24 tomato plants from and its application in biocontrol of gray mold disease].

An endophytic actinomycete strain St24 with acaricidal activity was isolated from the root-stem junction of tomato plants, with the taxonomic position of the strain and its control effect against gray mold disease investigated. The St24 was identified as Streptomyces vinaceus, and its broth's petroleum ether extracts could inhibit a variety of pathogens. The inhibitory effect of the extracts on Botrytis cinerea was the strongest, with the EC50 of inhibiting B.

[Pre-hospital systematic treatment for patients with severe acute organophosphorus pesticide poisoning].

Objective: To evaluate the feasibility, safety and effectiveness of on-spot systematic treatment for the patients with severe acute organophosphorus pesticide poisoning (SAOPP).

Methods: Two hundred and twenty-three SAOPP patients were divided into two groups: pre-hospital treatment group (116 patients), in which rescue equipment and drugs were carried to the spot for the treatment of the patients; hospital treatment group (107 patients), in which the patients received emergency treatment after reaching the hospital. The pre-hospital group was sub-divided into group A and group B.