Publications by authors named "Guanglong Sun"

Human speech and animal vocalizations are important for social communication and animal survival. Neurons in the auditory pathway are responsive to a range of sounds, from elementary sound features to complex acoustic sounds. For social communication, responses to distinct patterns of vocalization are usually highly specific to an individual conspecific call, in some species.

View Article and Find Full Text PDF

Background: The perioperative outcomes following off-pump multi-vessel minimally invasive surgery (MICS) coronary artery bypass grafting (CABG) via a single left intercostal space incision has not been well evaluated.

Method: From July 2019 to January 2022, a total of 444 patients with multi-vessel coronary artery disease (CAD) were enrolled and divided into MICS ( = 179) and sternotomy CABG ( = 265). Perioperative outcomes were compared between these two groups, including intraoperative blood loss, postoperative first 24 h drainage, ventilation duration, length of stay (LOS) in ICU and total LOS in hospital.

View Article and Find Full Text PDF

The common marmoset (Callithrix jacchus) is a small and highly social New World monkey with high reproduction rates, which has been proven to be a compelling non-human primate model for biomedical and neuroscience research. Some females give birth to triplets; however, the parents cannot raise all of them. To save these infants, we have developed a hand-rearing method for raising newborn marmosets.

View Article and Find Full Text PDF

The cerebellum is involved in encoding balance, posture, speed, and gravity during locomotion. However, most studies are carried out on flat surfaces, and little is known about cerebellar activity during free ambulation on slopes. Here, it has been imaged the neuronal activity of cerebellar molecular interneurons (MLIs) and Purkinje cells (PCs) using a miniaturized microscope while a mouse is walking on a slope.

View Article and Find Full Text PDF

The use of assisted reproductive technology (ART) has risen steadily worldwide over the past 3 decades and helps many infertile families. However, ART treatments lead to an abnormal internal environment in the uterus, which may increase the risks of health problems for the offspring. Higher maternal estradiol (E) is a notable feature in women who use ART treatments, and this has been suggested as a key factor for the risk of diseases in the offspring.

View Article and Find Full Text PDF

Behavioral measurement and evaluation are broadly used to understand brain functions in neuroscience, especially for investigations of movement disorders, social deficits, and mental diseases. Numerous commercial software and open-source programs have been developed for tracking the movement of laboratory animals, allowing animal behavior to be analyzed digitally. optical imaging and electrophysiological recording in freely behaving animals are now widely used to understand neural functions in circuits.

View Article and Find Full Text PDF

The identification and lead optimization of a series of pyrazolo[3,4-]pyridazinone derivatives are described as a novel class of potent irreversible BTK inhibitors, resulting in the discovery of compound . Compound exhibited high potency against BTK kinase and acceptable PK profile. Furthermore, compound demonstrated significant in vivo efficacy in a mouse-collagen-induced arthritis (CIA) model.

View Article and Find Full Text PDF
Article Synopsis
  • Cardiac reoperation, particularly for aortic surgeries involving the arch, poses significant risks and challenges, especially in patients with renal failure.
  • A study reviewed 395 patients who had previous cardiac surgeries, finding that 30.1% underwent aortic reoperations using Sun's technique, which is effective for secondary arch lesions.
  • The research indicated a 30-day mortality rate of 13.6%, with longer cardiopulmonary bypass times and increased bleeding volumes linked to higher mortality rates, while highlighting a generally high survival rate among those undergoing this procedure.
View Article and Find Full Text PDF

A series of vincamine derivatives were designed, synthesized and evaluated as pancreatic β-cells protective agents for type 2 diabetes mellitus. Most of the compounds displayed potent pancreatic β-cells protective activities and five derivatives were found to exhibit 20-50-fold higher activities than vincamine. Especially for compounds Vin-C01 and Vin-F03, exhibited a remarkable EC value of 0.

View Article and Find Full Text PDF

Many species of birds gradually adapt to urbanization and colonize cities successfully. However, their nest site selection and competitive relationship in an urban community remain little known. Understanding the impact of urbanization on birds and the competitive relationship has important implications for the conservation and management of wildlife in urban ecosystems.

View Article and Find Full Text PDF

BACKGROUND The aim of this study was to estimate the long-term efficacy of total aortic arch replacement combined with the frozen elephant trunk (TAR+FET) technique for aortic disease following a prior cardiac surgery procedure. MATERIAL AND METHODS We performed TAR+FET for 118 patients for major vessel disease following a prior cardiac procedure with median sternotomy incision. All patients were divided into 5 groups: in group A, the prior major procedure was aortic valve replacement (AVR); in group B, the prior major procedure was isolated ascending aorta replacement; in group C, the prior major procedure was aortic root replacement; in group D, the prior major procedure was aortic arch replacement or intervention; and in group E, the prior major procedure was 'other' cardiac operative procedure.

View Article and Find Full Text PDF

A series of LX2343 derivatives were designed, synthesized and evaluated as neuroprotective agents for Alzheimer's disease (AD) in vitro. Most of the compounds displayed potent neuroprotective activities. Especially for compound A6, exhibited a remarkable EC value of 0.

View Article and Find Full Text PDF

BF211, a bufalin (BF) derivative, exhibits stronger anti-cancer activity than BF but with potential cardiotoxicity. Fibroblast activation protein-α (FAPα) is a membrane-bound protease specifically expressed by carcinoma-associated fibroblasts, thus has been used for the selective delivery of anticancer agents. In this study, we used a FAPα-based prodrug strategy to synthesize a dipeptide (Z-Gly-Pro)-conjugated BF211 prodrug named BF211-03.

View Article and Find Full Text PDF

Cardiovascular diseases are the leading cause of death globally; fortunately, 90% of cardiovascular diseases are preventable by long-term monitoring of physiological signals. Stable, ultralow power consumption, and high-sensitivity sensors are significant for miniaturized wearable physiological signal monitoring systems. Here, this study proposes a flexible self-powered ultrasensitive pulse sensor (SUPS) based on triboelectric active sensor with excellent output performance (1.

View Article and Find Full Text PDF

A facile and practical method for the synthesis of aromatic aldehydes by palladium-catalyzed reductive carbonylation starting from aryl iodides and HCOOH is described. Compared to the known formylation procedure, HCOOH serves not only as the most convenient and environmental-friendly C1 source but also as the reviving agent in the reductive elimination process of a Pd-catalyst. Furthermore, this procedure is also applied successfully to the modification of natural products, such as vindoline, tabersonin, and vincamine, to obtain the corresponding products in good yields.

View Article and Find Full Text PDF
Article Synopsis
  • Alzheimer's disease (AD) is a serious condition characterized by the loss of brain neurons and cognitive function, with oxidative stress (OS) and tau protein issues being key factors in its progression.
  • *A study showed that a small molecule called LX2343 can help improve cognitive dysfunction in rat models of AD by reducing OS-induced neuron damage and tau protein dysfunction.
  • *LX2343 works by protecting neurons, enhancing mitochondrial function, and inhibiting pathways that lead to cell death, suggesting its potential as a treatment for Alzheimer’s disease.
View Article and Find Full Text PDF

Aim: Streptozotocin (STZ) is widely used to induce oxidative damage and to impair glucose metabolism, apoptosis, and tau/Aβ pathology, eventually leading to cognitive deficits in both in vitro and in vivo models of Alzheimer's disease (AD). In this study, we constructed a cell-based platform using STZ to induce stress conditions mimicking the complicated pathologies of AD in vitro, and evaluated the anti-amyloid effects of a small molecule, N-(1,3-benzodioxol-5-yl)-2-[5-chloro-2-methoxy(phenylsulfonyl)anilino]acetamide (LX2343) in the amelioration of cognitive deficits in AD model mice.

Methods: Cell-based assays for screening anti-amyloid compounds were established by assessing Aβ accumulation in HEK293-APP and CHO-APP cells, and Aβ clearance in primary astrocytes and SH-SY5Y cells after the cells were treated with STZ in the presence of the test compounds.

View Article and Find Full Text PDF