Abstract In order to obtain the extraction process of defatted walnut powder (DWP), an ultrasound-assisted extraction based on artificial neural network was established, and the activity of the extract was evaluated. The artificial neural network (ANN) was used to model different parameters, including the yield of extraction, the concentrations of glansreginin A and ellagic acid, and obtained the optimal extraction process: solvent to material ratio of 9.5 mL/g, ethanol concentration of 68%, extraction period of 55 min, and extraction three times. Then, the antioxidant scavenging ability of DWP obtained by ANN was compared with other extraction methods. The results showed that DWP extracted by artificial neural network demonstrated good activity in scavenging DPPH and ABTS radicals.

Abstract Walnut kernel, the mature seed of Juglans regia L. recorded in the 2020 edition of the Chinese Pharmacopoeia, is a functional food riched in nutrients. Defatted walnut powder extract (DWPE), the residues of walnut kernel extracted for oil, has the effect on hypertriglyceridemia. However, the extract role and mechanism of it in hyperlipidemic acute pancreatitis research have not been elucidated. Thus, this paper aimed at exploring whether it could alleviate hyperlipidemic acute pancreatitis and further demonstrating the underlying mechanisms. The model was established by high-fat diet and intraperitoneal injection of L-arginine. After treatment with DWPE, the levels of total cholesterol, triglyceride, low-density lipoprotein cholesterol and high-density lipoprotein cholesterol of rats were significantly decreased when compared with model group. In addition, on the basis of hyperlipidemia-intensified L-arginine-induced accelerated blood lipid levels in rats, DWPE notably attenuated the pancreatic and hepatic pathological lesions. Furthermore, the levels of amylase, lipase and TNF-α were markedly decreased in the medication administration group. Therefore, DWPE would have a preventive effect on the progress of hyperlipidemic acute pancreatitis to a certain extent through reducing pancreatic cell injury, pancreatic oxidative stress level, and the levels of pancreatic digestive enzymes and inflammatory factors.

Objective: The purpose of this study was to investigate the lifetime suicide attempt rate, clinical characteristics and cognitive function of Chinese patients with chronic schizophrenia who had attempted suicide. Methods: We collected data from 908 schizophrenia inpatients about suicide attempts through interviews with the patients and their families, as well as through medical records. All patients were assessed with the Positive and Negative Syndrome Scale, the Rating Scale for Extrapyramidal Side Effects, the Abnormal Involuntary Movement Scale, and the Repeated Battery for the Assessment of Neuropsychological Status. Results: Of this sample, 97 (10.68%) had attempted suicide. Patients who had attempted suicide were younger, had longer illness duration, and more severe general psychopathology and depressive symptoms than those who had not. Logistic regression analysis confirmed that suicide attempts were correlated with age, smoking, and depression. No cognitive performance differences were observed between patients who had and had not attempted suicide. Conclusions: In China, patients with chronic schizophrenia may have a higher prevalence of lifetime suicide attempts than the general population. Some demographic and clinical variables were related to suicide attempts in patients with chronic schizophrenia.

Abstract Management of symptomatic atrial tachycardia (AT) during pregnancy seems challenging, especially those originating from left atrial appendage (LAA), which easily tend to be incessant and mediate cardiomyopathy. It’s contradictory between therapy and pregnancy. In this study, we report a case of a woman who presented with persistent AT, which lead to heart failure, during early pregnancy. She underwent successful catheter ablation using CartoSound and electroanatomic mapping without fluoroscopy. An electrophysiology (EP) study confirmed a focal LAA tachycardia. Soon after, left ventricular function of her heart normalized, and the patient successfully delivered a healthy child.