Objective To investigate the protective effect of ω?6 soybean oil fat emulsion on folium sennae?induced diarrhea in mice. Methods Thirty?six Kunming mice were randomly divided into three groups,including control,diarrhea,ω?6 soybean oil fat emulsion group(12 mice in each group). Besides the mice in control group,other mice were administrated folium sennae by gavage for 15 days to establish the diarrhea model. Then mice in ω?6 soybean oil fat emulsion group received ω?6 soybean oil fat emulsion by intravenously administration at a dose of 15 mL/kg daily since 6th day after intragastric administration of folium sennae for 10 days. Animals in control group and diarrhea group were intravenously adminis?tered with same volume of saline. The body weight ,general state and diarrhea index of the mice in each group were dynamically assessed. Ten days after intravenous injection,mice in every group were sacrificed and tissues were collected. Morphology of intestine mucosa was observed after HE staining. Albumin(ALB)level in plasma was evaluated by biochemical method. Proliferating cell nuclear antigen(PCNA)expression in intestine mucosa were assessed by immunohistochemical method. Results Compared with that in the diarrhea group,the general status,body weight and diarrhea index of mice in ω?6 soybean oil fat emulsion group were improved significantly. Ten days after intravenously administration ,pathological change in intestine mucosa of mice in ω?6 soybean oil fat emulsion group was improved significantly ,ALB level in plasma and PCNA expression in intestine mucosa were significantly increased(P<0.05)compared with that in diarrhea group. Conclusion ω?6 soybean oil fat emulsion has a significant protective effect on the diarrhea of mice induced by folium sennae ,which may be related to the up?regulated expression of PCNA by ω?6 soybean oil fat emulsion.

Aim To investigate whether EGCG treat-ment ameliorates cognitive deficits in APP/PS1 trans-genic mice and, whether it has the ameliorating effect of p75 NTR signaling to neuronal apoptosis in the hippo-campus of APP/PS1 mice. Methods Morris water maze test and locomotivity test were used to predict be-havioral changes; further TUNEL staining and Fluoro-Jade B staining were applied to confirm the neuronal apoptosis and neuronal degeneration;Western blot was employed to detect protein expression levels of p75 NTR signaling in the hippocampus of APP/PS1 mice. Re-sults EGCG treatment dramatically ameliorated the cognitive impairments, and inhibited the neuronal ap-optosis in the APP/PS1 mice. Moreover, EGCG treat-ment dramatically inhibited the p75 NTR signaling by de-creasing the p75ICD expression, JNK2 phosphorylation, and cleaved-caspase 3 expression. Conclusion EGCG treatment dramatically ameliorates the cognitive impairments, and inhibits the neuronal apoptosis by in-hibiting the p75NTR signaling.

Objective To evaluate the effect of therapeutic communication on negative emotion and quality of life of stoke patients. Methods A total of 120 stroke patients were divided into the control group and the observation group equally. The former received routine nursing and the latter routine nursing plus therapeutic communication. After 4 weeks, they were evaluated by self-rating anxiety scale (SAS), self-rating depressive scale (SDS), trait coping style questionnaire (TCSQ) and the short-form health survey-36 (SF-36). Results After the intervention, the scores on anxiety, depression and negative coping in the observation group were lower than those in the control group (P<0.01), while the scores on positive coping and quality of life were higher in the observation group than those in control group (P<0.01). Conclusion Therapeutic communication can effectively improve stroke patients′negative emotion and quality of life.

Objective:To investigate the clinical efficacy and mechanism of Ganoderma lucidum hypoglycemic formula in the treatment of insulin resistance in patients with type 2 diabetes mellitus (T2DM) with liver and kidney yin deficiency. Methods:A total of 86 patients with T2DM with liver and kidney yin deficiency who were diagnosed and treated at Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine from January 2021 to February 2022 were included in this study. These patients were divided into a control group and a treatment group, with 43 patients in each group using a 1:1 ratio using the sealed envelope method. Both groups were treated with standardized Western medicine. The treatment group was also treated with the Ganoderma lucidum hypoglycemic formula. All patients were followed up for 12 weeks. The clinical symptoms, curative effect, glucose and lipid metabolism, inflammatory factors, oxidative stress change, and safety were compared between the two groups. Results:The total response rate in the treatment group was 88.4% (38/43), which was significantly higher than 53.5% (23/43) in the control group ( χ2 = 12.69, P < 0.001). After treatment, the traditional Chinese medicine syndrome score, fasting blood glucose, 2-hour postprandial blood glucose, glycosylated hemoglobin, insulin resistance index, total cholesterol, triglyceride, tumor necrosis factor α, and interleukin-6 decreased in each group. The amplitudes of decrease of the above indexes were greater in the treatment group compared with the control group (all P < 0.05). C-peptide in the fasting state, C-peptide at 2 hours after a diet, and superoxide dismutase increased in each group. The amplitudes of increase of the three indexes were greater in the treatment group compared with the control group (all P < 0.05). Conclusion:Ganoderma lucidum hypoglycemic formula can greatly improve insulin resistance and glucose and lipid metabolism in T2DM patients with liver and kidney yin deficiency. The underlying mechanism may be to further reduce the inflammatory response and anti-oxidative stress by down-regulating tumor necrosis factor α and interleukin-6 levels and up-regulating superoxide dismutase level, thereby effectively alleviating insulin resistance in T2DM.

Interval timing is involved in a variety of cognitive behaviors such as associative learning and decision-making. While it has been shown that time estimation is adaptive to the temporal context, it remains unclear how interval timing behavior is influenced by recent trial history. Here we found that, in mice trained to perform a licking-based interval timing task, a decrease of inter-reinforcement interval in the previous trial rapidly shifted the time of anticipatory licking earlier. Optogenetic inactivation of the anterior lateral motor cortex (ALM), but not the medial prefrontal cortex, for a short time before reward delivery caused a decrease in the peak time of anticipatory licking in the next trial. Electrophysiological recordings from the ALM showed that the response profiles preceded by short and long inter-reinforcement intervals exhibited task-engagement-dependent temporal scaling. Thus, interval timing is adaptive to recent experience of the temporal interval, and ALM activity during time estimation reflects recent experience of interval.
Animals ; Mice ; Reward ; Time Factors ; Cognition ; Learning ; Decision Making ; Reinforcement, Psychology

The secondary motor cortex (M2) encodes choice-related information and plays an important role in cue-guided actions. M2 neurons innervate the dorsal striatum (DS), which also contributes to decision-making behavior, yet how M2 modulates signals in the DS to influence perceptual decision-making is unclear. Using mice performing a visual Go/No-Go task, we showed that inactivating M2 projections to the DS impaired performance by increasing the false alarm (FA) rate to the reward-irrelevant No-Go stimulus. The choice signal of M2 neurons correlated with behavioral performance, and the inactivation of M2 neurons projecting to the DS reduced the choice signal in the DS. By measuring and manipulating the responses of direct or indirect pathway striatal neurons defined by M2 inputs, we found that the indirect pathway neurons exhibited a shorter response latency to the No-Go stimulus, and inactivating their early responses increased the FA rate. These results demonstrate that the M2-to-DS pathway is crucial for suppressing inappropriate responses in perceptual decision behavior.
Mice ; Animals ; Motor Cortex ; Corpus Striatum/physiology* ; Neostriatum ; Neurons/physiology* ; Reaction Time