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Objective To investigate the efficacy and effects on cognitive function and sleep quality of Buqi Wenyang Dingkuang Decoction in treatment of mania patients with upfloating of asthenia yang type. Methods A total of 100 patients with mania who were hospitalized between January 2020 and January 2022 in the Affiliated Brain Hospital of Guangzhou Medical University were selected and divided into observation group and control group according to the random number table method (n=50, each) . Both group was given valproate sustained-release tablets and quetiapine tablets treatment, and the observation group was added with Buqi Wenyang Dingkuang Decoction. The treatment course of the 2 groups was 4 weeks. Treatment efficacy and incidence of adverse reactions were compared between two groups. The primary syndrome score, Clinical Global Impressions Scale (CGI) score, Pittsburgh Sleep Quality Index (PSQI) score and Repeatable Battery for the Assessment of Neuropsychological Status (RBANS) score before and after treatment were compared between the two groups. Results The total effective rate was higher in the observation group than in the control group (90.00% vs 72.00%, χ2=5.263, P＜0.05) . The scores of mania, thirst not to drink, and limb cold at 4 weeks of treatment in the 2 groups were lower than those before treatment (P＜0.05) , and those of the observation group were lower than those of the control group (P＜0.01) . The BRMS scale score, CGI score, and PSQI scale score of the 2 groups at 4 weeks of treatment were lower than those before treatment (P＜0.01) , and the above-mentioned scores of the observation group were lower than those of the control group (P＜0.01) . The scores of immediate memory, spatial structure, attention, verbal function, and delayed memory in the 2 groups at 4 weeks of treatment were higher than those at pretreatment (P＜0.01) , and the scores in the observation group after treatment were higher than those in the control group (P＜0.05) . Fewer adverse reactions were observed in the observation group than those in the control group (8.00% vs 26.00%, P＜0.05) . Conclusion Buqi Wenyang Dingkuang Decoction has a certain effect on mania patients with upfloating of asthenia yang type, and can significantly improve their cognitive function and sleep quality.

In order to improve the utilization of Haliotis discus hannai mantle, collagen purified from it was hydrolyzed by trypsin and pepsin to prepare angiotensin I-converting enzyme (ACE) inhibitory peptides. The hydrolysate was purified by sequential ultrafiltration, SuperdexTM peptide 10/300 GL gel filtration chromatography and high performance liquid chromatography (HPLC). Three ACE inhibitory peptides, SGEVGQ, QRGPAGAQGPQ and GPPGPAGAR, were obtained . Among them, GPPGPAGAR had the highest ACE inhibitory activity with a half maximal inhibitory concentration (IC50) of 177.1 μmol/L. Molecular docking results showed that GPPGPAGAR mainly acted on the S1 active pocket of ACE and the inhibitory mode was similar to that of lisinopril. GPPGPAGAR still showed high ACE inhibitory activity after simulated gastrointestinal digestion. This study will provide a reference for deep processing of abalone mantle and the development of ACE inhibitory peptides.

Background: More than 80% of adolescent and young adult cancer patients (AYACPs) experienced psychological distress. Physical activity and behavioral activation are effective to relieve the psychological distress in AYACPs. Methods: Participants aged 15–39 years diagnosed with malignant tumors were included. A total of 143 eligible AYACPs were randomly assigned to three groups. The treatment‐as‐usual group (N = 48) received routine care, the physical activity group (N = 47) received 8 weeks of physical activity program based on intelligent wearable devices, and the behavioral activation group (N = 48) received an internet‐based modified behavioral activation program for 8 weeks. Objective outcome measures included salivary cortisol and testosterone. Results: Linear mixed‐model analyses showed significant differences between treatment‐as‐usual, physical activity and behavioral activation in salivary cortisol, as well as total scores on depression and anxiety, physical activity, self‐efficacy, and social support. Significantly stronger effect sizes for physical activity group compared with behavioral activation group were found on physical activity (d = 0.53) (1 week after intervention), moderate activity (d = 0.61), and walking activity (d = 0.57) (3‐month follow‐up). Conclusions: Intelligent, wearable, device‐based physical activity program is more effective in alleviating anxiety and depression, reducing saliva cortisol, and improving physical activity in AYACPs than internet‐based modified behavioral activation program. Intelligent, wearable, device‐based physical activity program can reduce the time cost of AYACPs to ensure that the intervention is carried out. [ABSTRACT FROM AUTHOR]

Size is one of the crucial factors influencing the biological properties of nanomedicines. However, the size control of nanomaterials is still very challenging, and the size effect on their biological properties is worth studying. Herein, we present the synthesis and size control of a series of multiarm block copolymers with the third-generation PAMAM (G3 PAMAM) as the core. The multiarm copolymers were synthesized by the ring-opening polymerization of N -carboxyanhydride of the l-glutamic acid-5- tert -butylester [Glu(O t Bu)-NCA] monomer with the amine-terminated PAMAM as the initiator, followed by the synthesis of the poly(carboxybetaine) (PCB) block via the atom transfer radical polymerization of the 2-(dimethylamino)ethyl methacrylate monomer, the reaction with tert -butyl bromoacetate, and the deprotection of the tert -butyl ester groups. The polyglutamic acid (PGA) block provided abundant reactive groups for the functionalization of the multiarm block copolymers, and the PCB block imparted excellent water solubility and anti-protein adsorption capability. We synthesized three multiarm copolymers with diameters of 15, 24, and 41 nm, respectively, by tuning the polymerization degrees of the arms. Doxorubicin was coupled to the PGA block through the acylhydrazone linkage, which resulted in a pH-sensitive drug release and a drug loading of over 20%. We systematically investigated the size effects on their cellular uptake, cytotoxicity, endocytic pathway, biodistribution, tumor penetration, and antitumor activity. This work is helpful for the design of polymeric nano-drug carriers for tumor therapy.

Surface-enhanced Raman scattering (SERS) signals are fundamental for spectroscopy applications. However, existing substrates cannot perform a dynamically enhanced modulation of SERS signals. Herein, we developed a magnetically photonic chain-loading system (MPCLS) substrate by loading magnetically photonic nanochains of Fe 3 O 4 @SiO 2 magnetic nanoparticles (MNPs) with Au nanoparticles (NPs). We achieved a dynamically enhanced modulation by applying an external stepwise magnetic field to the randomly dispersed magnetic photonic nanochains that gradually align in the analyte solution. The closely aligned nanochains create a higher number of hot spots by new neighboring Au NPs. Each chain represents a single SERS enhancement unit with both a surface plasmon resonance (SPR) effect and photonic property. The magnetic responsivity of MPCLS enables a rapid signal enhancement and tuning of the SERS enhancement factor.

The psychological distress of cancer patients seriously affects their therapeutic effects. Effective psychological rehabilitation of cancer patients significantly improves their survival chance and quality of life. Circadian rhythm results from adaptation to the environment during the organism's evolution. When the endogenous clock system is disrupted or the external environment is changed, the body and the environment are out of synchronization, and the circadian rhythm will be disrupted. Circadian rhythm disorder is a common phenomenon in cancer patients, and the changes of circadian rhythm are closely related to their psychological distress. Many studies believe that the circadian rhythm disorder of cancer patients may directly or indirectly affect their psychology through various mechanisms, and targeted intervention by regulating the circadian rhythm of patients may be an essential means to promote the psychological rehabilitation.

Blood-brain barrier (BBB)-crossing ability of drugs is of paramount importance for the treatments of central nervous system diseases. However, the known methods for drug transport across the BBB are generally complicated and inefficient, and exhibit serious side effects in some cases. Herein, we report an exciting finding that fluorination and betaine modification can significantly augment the BBB-crossing ability of cylindrical polymer brushes (CPBs), which was demonstrated by the comparison with the CPBs modified with alkyl and poly(ethylene glycol) chains, respectively. We surmise that fluorination enhances the BBB penetration of the CPBs by increasing the hydrophobicity and reducing the surface energy, and betaine medication achieves this function via a betaine transporter BGT1 expressed on brain capillaries. By means of an in vitro BBB model, we demonstrated that the CPBs penetrated the BBB through transendothelial transport. This work provides a novel strategy for enhancing the BBB-crossing ability of nanomaterials., (© 2022 Wiley-VCH GmbH.)