scholarly journals The Influence of Different Dexmedetomidine Doses on Cognitive Function at Early Period of Patients Undergoing Laparoscopic Extensive Total Hysterectomy

2021 ◽  
Vol 2021 ◽  
pp. 1-9
Author(s):  
Huiqiong Huang ◽  
Xiuyi Xu ◽  
Yirong Xiao ◽  
Junxiang Jia

Background. This study aims to analyze the influence of different dexmedetomidine doses on cognitive function. It works on early periods of patients undergoing laparoscopic extensive total hysterectomy. Method. 119 patients with gynecological cancer underwent a laparoscopic extensive total hysterectomy. The operation was performed at the Affiliated Women’s and Children’s Hospital of Xiamen University from January 2019 to June 2020. The score of MoCA and the level of TNF-α, IL-6, S-100β protein, NSE, and GFAP of each group were compared 1 day before and after operation and 3 and 7 days after operation. Result. In four groups, remifentanil, sufentanil, and propofol were given in the following order: group A > group D > group C > group B. Group A > group D > group C in terms of time spent in the recovery room, extubation, and recovery from anesthesia. The difference between groups B and C was not significant ( P > 0.05 ). Compared with group A, group B scored higher in MoCA at 1 day (T1), 3 days (T2), and 7 days (T3) after operation ( P < 0.05 ). At the same scoring point, the score was group B > group C > group D > group A. The POCD of four groups all occurred at 3 days after surgery. Compared with the T0 point, the level of TNF-α and IL-6 of the four groups at T1 and T2 was significantly increased ( P < 0.05 ). At T3, the level of TNF-α and IL-6 gradually decreased. At various periods, the levels of S-100 protein, NSE, and GFAP in groups B, C, and D were lower than those in group A (P0.05). Group B had a substantially higher rate of bradycardia than the other three groups (P0.05). The incidence of chills, respiratory depression, and restlessness in group A differed significantly from the other three groups ( P < 0.05 ). Conclusion. Using 0.5 μg/kg dexmedetomidine during the perianaesthesia can effectively reduce anesthetic drugs in patients. They had a laparoscopic extensive complete hysterectomy, which helps to reduce the adverse responses and the occurrence of POCD while also protecting brain function.

2015 ◽  
Vol 3 (1) ◽  
pp. 38-45
Author(s):  
Jing Shen ◽  
Yan Peng ◽  
Dong-Mei Shi ◽  
Yin-Shuai Feng ◽  
Yan-Ling Hou ◽  
...  

Abstract Objective: to observe the effects of moxibustion on histomorphological changes of gastric mucosa, as well as on serum IL-6、IL-8、TNF-α,Hp IgG、CD3+、CD4+、CD8+ in helicobacter pylori (Hp) infected rats, so that to better understand how the moxibustion repairs the Hp- induced gastric mucosal injury. Methods: 40 SD rats were randomly assigned to four groups: group A (blank control), group B (Hp infection model), group C (moxibustion plus model), group D (electro-acupuncture plus model), 10 for each group. The “NaHCO3 plus Indometacin and Hp intragastric administration” method was employed to make gastritis model. Acupoints selected for “repair” purpose were Zu San Li (ST36), Zhong Wan (CV12), Guan Yuan (RN4), Pi Shu (BL20), Wei Shu(BL21). The histomorphological changes of gastric mucosa in rats were observed under light microscope after HE stain; IL-6, IL-8, TNF-α, Hp IgG values were evaluated by ELISA method; values of CD3+、CD4+、CD8+、CD4+/CD8+ were measured by flow cytometry method. Results: compared with group A, the values of IL-6, IL-8, TNF-α, Hp IgG and CD8+ in group B were increased(P<0.01), whereas the values of CD3+、CD4+、CD4+/CD8+ were decreased(P<0.01). Compared with group B, the values of IL-8(P<0.05),TNF-α(P<0.05), IL-6(P<0.01), Hp IgG(P<0.01) and CD8+ (P<0.05) in group C were decreased, whereas the values of CD3+(P<0.05),CD4+(P<0.05),CD4+/CD8+ (P<0.05) were increased, meanwhile such values in group D had no significant changes. Compared with group D, the values of IL-6(P<0.05),IL-8 (P<0.05)and Hp IgG (P<0.01)in group C were decreased, whereas CD4+/CD8+(P<0.05)were increased, all those changes had statistical significance. Conclusion: the preventive and therapeutic effects of moxibustion on Hp related gastritis might be realized by two ways- to inhibit the secretion of proinflammatory cytokines such as IL-6, IL-8 and TNF-α, or to regulate the production of immune factors (such as up-regulation of CD3+, CD4+ and down-regulation of CD8+).


2019 ◽  
Author(s):  
Jiasheng Xu ◽  
Kaili Liao ◽  
Weimin Zhou

[Abstract]ObjectiveExperiments were designed to compare the expressions of IL-1 TNF-α P-selectin mRNA by porcine endothelial cells after vein thrombosis.MethodsIVC under the renal vein of 20 porcines were ligated to induce thrombosis modes. These thrombosed veins were divided into three groups:group A-one day after thrombosis, group B-four days after thrombosis and group C-seven days after thrombosis. The other pigs were given the shame operation as a contro group (group D). The mRNA levels of IL-1、 TNF-α and P-selectin expressed by porcine endothelial cells in three groups were analy sed by semi quantitative RT-PCR. Endothelial cells were harvested with collagenase II.ResultsThe purity of endothelial cells harvested was 99.42 ±0.07. The expression of IL-1 was detained only in group A while TNF-αreached its peak in group B(P<0.05) and P-selectin increased gradually with the days passing by(P<0.05).ConclusionEndothelial cells are not only the target cells of inflammatory mediators, but also can express a variety of active factors to promote venous thrombosis. Expression of TNF-α mRNA is increased gradually in the early period of vein thrombosis whileP-selectin in the acute period; IL-1 mRNA was transiently expressed only in the early stage of thrombosis.


2021 ◽  
Author(s):  
Qian Zhou ◽  
Dongjin Xie ◽  
Ting Chen ◽  
Youguang Gao ◽  
Lanying Lin ◽  
...  

Abstract Background: The study sought to investigate the effects of dexmedetomidine on cognitive function after anesthesia and to examine its actual mechanism. Methods: A total of 48 rats were randomly divided into model Groups A, B, C, or D. Rats in Groups A, B, and C received a hypodermic injection of D-gal with a concentration of 1,000 mg·kg−1·d−1 respectively for 1 week. Group D received the same volume of saline. The Morris water maze (MWM) test was performed within 6 days of the injection. After the behavior test, Group A received an inhalation dose of 2% sevoflurane. Group B received an inhalation dose of 2% sevoflurane and an intraoperative infusion of dexmedetomidine with a concentration of 10 μg·kg−1·h−1. Group C served as the control group and received no treatment. Group D received an inhalation dose of 2% sevoflurane. Results: In relation to the model establishment, we found that there was no significant difference in body weight and swimming speed before and after modeling. There was no statistically significant difference in the escape latency between Groups A, B, C, and D before modeling. After modeling, there was no statistical difference in the escape latency between Groups A, B, and C, but the difference was statistically significant when compared to Group D (P<0.05). In relation to the dexmedetomidine intervention, we found that compared to Group C, MWM test performance in Group A and B was considerably worse (longer escape latencies and fewer platform crossings within 90 seconds), and were more significant in Group A. .Compared with Group D, the levels of IL-1, IL-6, and TNF-α of the brain homogenates were elevated, and this elevation was highest in Group A, followed by Group B; The pathological changes were consistent with changes in behavioral tests. In group A, there were obvious disorders of glial cell arrangement, apoptosis and deletion. There was no significant change in group D. And the changes of vertebral cells in group B and group C were slight, with orderly arrangement and intact cell structure.Conclusions: Dexmedetomidine inhibits the apoptosis of hippocampal cells and reduces the cognitive dysfunction of rats with MCI induced by D-galactose via the inhibition of the release of inflammatory cytokines.


2020 ◽  
Vol 4 (2) ◽  
Author(s):  
Chunyan Zhao ◽  
Cibo Chen ◽  
Bingchun Xia

Objective: To explore the effects of different infusion schemes on colloid osmotic pressure during major abdominal surgery and perioperative albumin in elderly patients. Methods: 140 elderly patients of 65-80 years old undergoing major abdominal surgery were divided into 4 groups according to the method of random number table , and different proportions of crystals and colloids were given to different groups (group A: whole crystal, group B: crystal-colloid ratio 1 : 1, group C: crystal-colloid ratio 2: 1, Group D: crystal-colloid ratio 1: 2).  The plasma colloid osmotic pressure and level of albumin during perioperative period were monitored. Simultaneously observe the arterial blood pH, blood glucose, extubating time of endotracheal tube, postoperative feeding time, et al. Results: The total amount of liquid inputted in the group of whole crystal was 3056ml (3056 ± 253), which was significantly increased compared with other groups (P<0.01). At the same time, the colloid osmotic pressure decreased by 11.9 mmHg (11.9 ± 2.8), which was more obviously decreased than that of the other groups( B group3.9 ± 1.3, C group 1.5 ± 0.3, D group 4.7±2.1). The difference was a statistically significant(P<0.01). On the other day after surgery, the level of albumin decreased by an average of 4.3 g / L (4.5 ± 1.9) compared with that in group B before surgery, and group C decreased by 2.9 g / L (2.9 ± 1.2) in average, which was significantly different (P<0.05) from group A 10.2 g / L (10.2 ± 1.8). There was no statistically significant difference between group A and group D (P>0.05). And the other indexes were not significantly different between the two groups. Conclusion: This study found that different infusion solutions with different crystal-colloid ratios had an effect on perioperative colloid osmotic pressure and level of albumin.


2021 ◽  
Vol 13 (7) ◽  
pp. 1350-1357
Author(s):  
Yingjun Zhang ◽  
Wubing Mao ◽  
Min Feng ◽  
Ning Zhu ◽  
Wenzhong Yi ◽  
...  

ABSTRACTThis study was to explore the effect of nanoparticles on the cognitive function, learning and memory ability (LMA) of Alzheimer’s disease (AD) rats, and to analyze the changes on magnetic resonance (MR) image. Specifically, the TGN nanoparticles loading H102 (TGN-NP-H102) were prepared, and characterized first. The sprague-dawley (SD) rats were selected as the research subjects, and the AD model was constructed. They were divided into a Sham group (normal SD rats, group A), an AD model group (group B), an H102 group (treated with H102 drugs based on AD model, group C), and a TGN-NP-H102 group (treated with TGN-NP-H102 nanoparticles based on AD model, group D). The changes in T2 value in hippocampal CA1 area (T2-CA1) were analyzed, and the changes in cognitive function and LMA were tested with the Morris water maze experiment (Morris experiment). The results revealed that, the average PS (APS) of TGN-NP-H102 nanoparticles was 122.9±2.8 nm, and its average Zeta potential (AZP) was -28.8±0.2 mV. In group A, the TGN-NP-H102 nanoparticles still remained in the brain tissue homogenate by 74.3 ±4.8% after 10 hours, and the drug-release rate was 53.2 ± 3.2%. After 30 days of treatment, the T2-CA1 value of group D was lower (P <0.05), and the average escape latency (AEL) and swimming distance in the Morris experiment were shorter versus group B (P < 0.05). It indicated that, the brain-targeted TGN-NP-H102 nanoparticles prepared could act on the hippocampus of AD rats, and improve their LMA.


2010 ◽  
Vol 7 (3) ◽  
pp. 341-349 ◽  
Author(s):  
Zhu Shijie ◽  
Junji Moriya ◽  
Jun’ichi Yamakawa ◽  
Rui Chen ◽  
Takashi Takahashi ◽  
...  

Goal of this study was to evaluate effects of Mao-to on development of myocarditis induced by encephalomyocarditis (EMC) virus in mice. Mice were randomly divided into five groups. Group N included uninfected controls (n= 18), while group A, B and C underwent intraperitoneal injection of EMC virus. Group A was administered oral saline from day 0 to day 4. Group B was administered oral Mao-to (500 mg−1kg−1day−1) from day 0 to day 4. Group C was administered Mao-to from day 2 to day 6. Group D was administered Mao-to from day 5 to day 10. Treated mice were followed for survival rates during 2 weeks after infection. Body weight (BW) and organ weights including heart (HW), lungs, thymus and spleen were examined on days 4, 6 and 14. Survival rate of group C (36.4%) was significantly improved compared with group A, B or D (0% of each,P< 0.05). HW and HW/BW ratio in group C was significantly (P< 0.05) lower than those in group A, B or D. Viral titers of hearts were significantly different among groups A, B and C. Cardiac expression in tumor necrosis factor-α (TNF-α) was significantly reduced in group C in comparison with group A, B or D on day 6 by immunohistochemical study. Administration of Mao-to starting on day 2 improves mortality resulting from viral myocarditis in mice with reduced expression of cardiac TNF-α. These findings suggest that timing of Mao-to is crucial for preventing cardiac damage in mice with viral myocarditis.


2016 ◽  
Vol 2016 ◽  
pp. 1-6 ◽  
Author(s):  
Jun-Zhe Wu ◽  
Wen-Hua Wu ◽  
Li-Jiang He ◽  
Qing-Feng Ke ◽  
Long Huang ◽  
...  

Background. To explore influence of continuous illumination, luzindole, and Tamoxifen on incidence of scoliosis model of rats.Methods. Thirty-two one-month-old female rats were rendered into bipedal rats. The bipedal rats were divided into 4 groups: group A by intraperitoneal injection of luzindole and continuous illumination; group B by intraperitoneal injection of luzindole only; group C by intraperitoneal injection of luzindole and oral administration of Tamoxifen; and group D by intraperitoneal injection of equivalent saline. Radiographs were taken at 8th week and 16th week, and incidence and the Cobb angles of scoliosis were calculated. At 16th week, all rats were sacrificed. Before the sacrifice, the levels of calmodulin were measured in each group.Results. At 8th week, scoliosis occurred in groups A and B, with an incidence of 75% and 12.5%, respectively, while rats in group C or D had no scoliosis. At 16th week, scoliosis incidences in groups A and B were 57% and 62.5%, respectively. No scoliosis occurred in group C or D. Calmodulin in platelets in group B was significantly different, compared with groups A and D. There was no significant difference in calmodulin in platelets in groups B and C.Conclusion. By intraperitoneal injection of luzindole in bipedal rats, scoliosis rat models could be successfully made. Under light, incidence of scoliosis may be increased at an early period but it is reversible. Tamoxifen can suppress natural process of scoliosis.


2012 ◽  
Vol 40 (2) ◽  
pp. 233 ◽  
Author(s):  
Yang XINAGHUI ◽  
Li PING ◽  
Lin SHUNQUAN ◽  
Hu GUIBIN ◽  
He XIAOLONG

Phylogenetic relationships of the genus Eriobotrya Lindl. were examined based on the nrDNA Adh sequences. A phylogenetic tree of 14 loquat accessions (species, varieties and forma) was generated by using Photinieae serrulaia L. as an outgroup and Rhaphiolepis indica (L.) Lindl. as an ingroup, which represent the two closest genera of Eriobotyra. The results showed that these loquat accessions were divided into two main clades in the consensus tree. Clade I included E. seguinii Card and group A formed by E. henryi Nakai, E.bengalensis Hook.f., and forma angustifolia Vidal. Clade II is composed of the other taxas which included three groups. E. cavaleriei Rehd and E. fragrans Champ formed group B; group C consisted of E. prinoides Rehd. & Wils. var. dadunensis H.Z.Zhang, and E. japonica Lindl.; and group D included E. deflexa Nakai and E. deflexa Nakai Var.buisanensis NaKai. Since E. deflexa Nakai, E. deflexa Nakai Var.buisanensis NaKai and E. kwangsiensis Chun, were closer in the phylogenetic tree; while E. prinoides Rehd. & Wils. var. dadunensis H.Z.Zhang, E. japonica Lindl, E. prinoides Rehd & Wils and E.elliptica Lindl. were close with each other, they may be locataed at a similar place of the phylogenetic stage. However, E. malipoensis Kuan need further studies on its phylogenetis relationship for it was separated from the others. Results further support the theory that E. cavaleriei Rehd could be a variety of E. fragrans Champ.


2013 ◽  
Vol 82 (4) ◽  
pp. 399-403 ◽  
Author(s):  
Julius Černík ◽  
Leoš Pavlata ◽  
Alena Pechová ◽  
Ľubica Mišurová ◽  
Olga Jokverová ◽  
...  

The aim of the study was to identify the effect of supplementation of various forms of zinc on the ruminal mucosa and dimensions of ruminal papillae in 6-month-old goat kids. The experimental period lasted from weaning to slaughter (4 months). All 20 kids divided into four groups of five animals, were fed with the same feeding dose, which was different only in the quantity and form of zinc. Control group was without additional zinc supplementation (group A), the other groups were supplemented with zinc in the form of ZnO (group B), zinc in the form of chelate (group C) and zinc in the form of lactate (group D). Samples for histopathological and morphometric examination were collected after the slaughter of all animals from the bottom of saccus ruminis ventralis everytime from the same place. Significant differences were reported within the comparison of the length of ruminal papillae between groups B and C (P = 0.026) and B and D (P = 0.040), within the comparison of the width of ruminal papillae between groups A and D (P = 0.020) and within the comparison of the intensity of keratinisation of the mucosa of ruminal papillae between groups A and B (P = 0.034), A and C (P = 0.038) and A and D (P = 0.001). Histopathological and morphometric examination of ruminal mucosa indicated that the ruminal papillae of kids supplemented with zinc in the form of ZnO (group B) were better developed compared to the other groups. This result indicates better utilisation of the supplemented zinc in the form of ZnO.


2019 ◽  
Author(s):  
Bo Huang ◽  
Haiyang Tang ◽  
Tao He ◽  
Zheng Yang ◽  
Ping Gong

1.AbstractBackground/AimsRadiotherapy does not only kill tumor cells but also impairs the function of adjacent tissues, especially bone metabolism by damaging bone marrow stromal stem cells (BMSCs). This study aimed to investigate the effect of semaphorin 3a (Sema3a) on BMSCs exposed to 2 Gy radiation.MaterialsBMSCs were divided into four groups, namely, group A (0 Gy), group B (2 Gy), group C (0 Gy + Sema3a), and group D (2 Gy + Sema3a). A Cell Counting Kit-8 kit, Alizarin-Red and Oil-Red-O staining, alkaline phosphatase activity kit, and dichlorodihydro-fluoresce in diacetate were used to test cell proliferation, cell cycle, osteogenic ability, adipogenic ability, and the level of reactive oxygen species (ROS), respectively, in each group. Real-time PCR was performed to test the expression of osteogenic (osteocalcin and Runt-related transcription factor 2), adipogenic (peroxisome proliferator-activated receptor gamma), interleukin (IL)-6, and tumor necrosis factor (TNF)-α genes.ResultsBMSC proliferation, osteogenic differentiation, and the number of cells undergoing division (S+G2 phase of the cell cycle) were found to be lower in group B than in group A. and the cellular levels of ROS, adipogenic differentiation, and expression of inflammatory factors (IL-6 and TNF-α) were higher in group B than in group A. Furthermore, osteogenic differentiation ability was higher in group D than in group B, and adipogenic differentiation ability, cellular levels of ROS, and gene expression of TNF-α and IL-6 were lower in group D than in group B.ConclusionThis study demonstrated that 2 Gy radiation could decrease the osteogenic differentiation ability of BMSCs and increase their adipogenic differentiation ability by increasing the production of ROS. However, Sema3a could reduce these side effects by decreasing the levels of ROS.


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