1.HANS in treating spasiticity resulting from spinal cord injury
Jiazong WANG ; Hongjun ZHOU ; Genlin LIU ; Shangcheng YAN ; Yu YUAN ; Jisheng HAN ; Xiaohong CHEN ; Fei LUO
Chinese Journal of Rehabilitation Theory and Practice 1997;3(3):111-117
Surface transcutaneous electric nerve stimulation(TENS) was applied to treat the spasiticity resulting from spinal cord injury(SCI) in the acupoints of the subjects with SCI in order to oberve thetranscient and long-term effect of the treatment Fand its mechanism will be discussed in this paper. The results show that: 1 )more significant effect in relieving the spasiticiy was got by stimulating in high frequencyfor 30minutes,while less effect in low frequency(2Hz) ; 2)the effect in high frequency was partially ostracized by naloxone; 3)the effect in high frequency lasted for a long time i 4)compared with lumbar and sacralstimulation,the acupoint stimulation lasted for the longest time. This study also gets a hypothesis that highfrequency TENS in acupoints improves dynorphin in CSF to release and significantly relieve the spasiticityby kappa opioid receptor which decreases the excitment of anterior motor neuron.
2.Study on the behavioral risk of toxoplasma infection in population working in the slaughterhouse.
Yan MA ; Tao JIN ; Liyuan WANG ; Tingzhong YANG ; Lu LI ; Le ZHANG
Chinese Journal of Epidemiology 2002;23(1):43-45
OBJECTIVETo explore the behavioral risk of toxoplasma infection in special population.
METHODSSerum samples from workers in slaughterhouse were collected and tested for the detection of cAg, toxo-IgG, toxo-IgM antibody to toxoplasma, using ELISA. Behavioral measurements were conducted through questionnaire, which was developed according to theory of reasoned action which consists of a measurement model that specifies the relation of measured to behavioral variables and a behavioral variable model to show the influence of behavior variables on each other. Factor analysis methods were used for estimating the parameter of the former and path analyses method for the latter.
RESULTSWith data from 302 research subjects, the responding rate was 95.87%. The overall infection rate was of 19.20% including 15.89% having cAg, 5.63% with toxo-IgG, 2.32% with toxo-IgM, 1.32% with the third of cAg, toxo-IgG and toxo-IgM, 2.65% with the both cAg and toxo-IgG, 1.99% with the both cAg and IgM respectively. There was significant association between toxoplasma infections and contact with dystocia or live pigs, body fluid or harslet. There was no relation between toxoplasma infections and abortion.
RESULTSfrom miscarriage factor analyses showed that except evaluation of behavioral outcomes and behavioral attitudes, internal consistence reliability of others behavioral variables was good (Cronbach's alpha > 0.7). These behavior variables could be explained by their measure items. Path analyses suggested that two components had provided significant independent contributions to those preventive behaviors which significantly correlated to toxoplama infections. Half of the contribution leading to toxoplasma infections had come from behavioral factors. Belief was relatively more important in predicting the preventive behavior than subjective norm.
CONCLUSIONOur findings supported the application of reasoned action theory in understanding the role of behavioral factors in toxoplasma infection.
Abattoirs ; Animals ; Antibodies, Protozoan ; blood ; Enzyme-Linked Immunosorbent Assay ; Female ; Humans ; Male ; Models, Biological ; Occupational Diseases ; blood ; etiology ; parasitology ; Occupational Exposure ; adverse effects ; statistics & numerical data ; Risk Factors ; Toxoplasma ; immunology ; Toxoplasmosis ; parasitology ; transmission ; Toxoplasmosis, Animal ; parasitology ; transmission
3.A preliminary exploration of reduced port laparoscopic proximal gastrectomy with right-sided overlap and single-flap valvuloplasty (ROSF)
Wei PENG ; Qiankun SHAO ; Xinyu LIANG ; Shangcheng YAN ; Qiang CHEN ; Rui REN ; Mengchao SHENG ; Wenting XU ; Yuan TIAN ; Yongyou WU
Chinese Journal of Gastrointestinal Surgery 2024;27(10):1069-1074
Objective:This study aimed to share preliminary experiences of single-incision plus two ports laparoscopic proximal gastrectomy with right-sided overlap and single-flap valvuloplasty (ROSF).Methods:Following the 6th edition of the Japanese Gastric Cancer Treatment Guidelines, proximal gastrectomy with lymphadenectomy was performed. Using a single-port approach, the esophagus was transected at least 2 cm above the tumor's upper margin with linear staplers. The stomach was then extracted through a periumbilical incision, and the proximal stomach was subsequently transected extracorporeally, while ensuring appropriate resection margins on both the greater and lesser curvatures. A single flap was created before returning the remnant stomach to the abdominal cavity and re-establishing pneumoperitoneum. The No.2 clip was used to grasp and elevate the esophageal stump. An incision was made at the right lower edge of the esophageal stump to guarantee that the esophageal lumen was open. The linear stapler was then inserted into the openings of the stomach and esophagus to perform a side overlap anastomosis with a length of 3 cm. Another barbed suture was used to close the common opening of the esophagus and the stomach, and the same barbed suture were used to suture the gastric wall to the lower edge of the muscle flap. The first barbed suture was then used to sequentially suture the proximal brim of the flap to the esophagus and the right brim of the flap to the right brim of the mucosal window. After completion of anastomosis, a drainage tube was inserted through the right upper port. This procedure was employed from November 2023 to March 2024 on five patients diagnosed with adenocarcinoma of the esophagogastric junction and upper stomach. The cohort consisted of three males and two females, with an age range of 62 to 75 years and a body mass index (BMI) of 13.7 to 24.2 kg/m2. All cases were preoperatively staged as T1-2N0M0, confirmed by endoscopic biopsy and enhanced CT scans of the chest, abdomen, and pelvis.Results:All five patients successfully underwent the surgery. The median surgery time was 180-325 minutes, with the intraoperative blood loss of 30-50 ml. The number of lymph nodes harvested ranged from 18 to 27. The time to first flatus, and restore liquid diet and was 2.0-5.0 and 1.0-3.0 days, respectively. The postoperative length of stay was 9.0-11.0 days. The pain scores on the Numeric Rating Scale (NRS). On the first day, the pain scores were 3.0 in two cases, 2.0 in two cases, and 1.0 in one case. On the second day, the pain scores were 2.0 in two cases and 1.0 in three cases. On the third day, the pain scores were 1.0 in four cases and 2.0 in one case. No short-term postoperative complications were observed, and there were no perioperative deaths.Conclusion:Single-incision plus two ports laparoscopic proximal gastrectomy with ROSF is safe and feasible.
4.Application study of non-alcoholic steatohepatitis based on radiomics of computed tomography
China Modern Doctor 2024;62(4):56-59
Objective To construct and validate a whole liver radiomics model based on computed tomography(CT)to identify patients with non-alcoholic steatohepatitis(NASH).Methods A total of 122 patients with nonalcoholic fatty liver disease treated in Zhejiang Provincial People's Hospital from June 2018 to December 2022 were retrospectively selected,including 52 patients with NASH.They were randomly divided into training group(n=85)and test group(n=37)according to a ratio of 7:3,and the liver plain scan images of each patient were selected to extract the radiomics features.The extracted features of the training group were dimensioned down and the radiomics signature was established.After that,a joint model was constructed with relevant clinical features to identify NASH patients,and the diagnostic effectiveness of the model was evaluated using receiver operating characteristic curve and test group data.Results The joint model was constructed based on age and radiomics labels.The diagnostic efficiency of the model for identifying NASH patients in training group and test group were 0.899 and 0.880,the specificity were 91.2%and 88.1%,and the sensitivity were 86.7%and 88.2%,respectively.In addition,the calibration curve also showed good calibration performance in training group and test group.Conclusion The joint model based on liver CT can quantitatively evaluate NASH,and is expected to provide a non-invasive evaluation tool for clinical use.
5.A preliminary exploration of reduced port laparoscopic proximal gastrectomy with right-sided overlap and single-flap valvuloplasty (ROSF)
Wei PENG ; Qiankun SHAO ; Xinyu LIANG ; Shangcheng YAN ; Qiang CHEN ; Rui REN ; Mengchao SHENG ; Wenting XU ; Yuan TIAN ; Yongyou WU
Chinese Journal of Gastrointestinal Surgery 2024;27(10):1069-1074
Objective:This study aimed to share preliminary experiences of single-incision plus two ports laparoscopic proximal gastrectomy with right-sided overlap and single-flap valvuloplasty (ROSF).Methods:Following the 6th edition of the Japanese Gastric Cancer Treatment Guidelines, proximal gastrectomy with lymphadenectomy was performed. Using a single-port approach, the esophagus was transected at least 2 cm above the tumor's upper margin with linear staplers. The stomach was then extracted through a periumbilical incision, and the proximal stomach was subsequently transected extracorporeally, while ensuring appropriate resection margins on both the greater and lesser curvatures. A single flap was created before returning the remnant stomach to the abdominal cavity and re-establishing pneumoperitoneum. The No.2 clip was used to grasp and elevate the esophageal stump. An incision was made at the right lower edge of the esophageal stump to guarantee that the esophageal lumen was open. The linear stapler was then inserted into the openings of the stomach and esophagus to perform a side overlap anastomosis with a length of 3 cm. Another barbed suture was used to close the common opening of the esophagus and the stomach, and the same barbed suture were used to suture the gastric wall to the lower edge of the muscle flap. The first barbed suture was then used to sequentially suture the proximal brim of the flap to the esophagus and the right brim of the flap to the right brim of the mucosal window. After completion of anastomosis, a drainage tube was inserted through the right upper port. This procedure was employed from November 2023 to March 2024 on five patients diagnosed with adenocarcinoma of the esophagogastric junction and upper stomach. The cohort consisted of three males and two females, with an age range of 62 to 75 years and a body mass index (BMI) of 13.7 to 24.2 kg/m2. All cases were preoperatively staged as T1-2N0M0, confirmed by endoscopic biopsy and enhanced CT scans of the chest, abdomen, and pelvis.Results:All five patients successfully underwent the surgery. The median surgery time was 180-325 minutes, with the intraoperative blood loss of 30-50 ml. The number of lymph nodes harvested ranged from 18 to 27. The time to first flatus, and restore liquid diet and was 2.0-5.0 and 1.0-3.0 days, respectively. The postoperative length of stay was 9.0-11.0 days. The pain scores on the Numeric Rating Scale (NRS). On the first day, the pain scores were 3.0 in two cases, 2.0 in two cases, and 1.0 in one case. On the second day, the pain scores were 2.0 in two cases and 1.0 in three cases. On the third day, the pain scores were 1.0 in four cases and 2.0 in one case. No short-term postoperative complications were observed, and there were no perioperative deaths.Conclusion:Single-incision plus two ports laparoscopic proximal gastrectomy with ROSF is safe and feasible.
6.Advances on pentraxin 3 in osteoporosis and fracture healing.
Jia-Jun LU ; Yan SUN ; Xuan ZHANG ; Qiao-Qi WANG ; Zhou-Yi XIANG ; Yi-Qing LING ; Pei-Jian TONG ; Tao-Tao XU
China Journal of Orthopaedics and Traumatology 2023;36(4):393-398
Pentaxin 3 (PTX3), as a multifunctional glycoprotein, plays an important role in regulating inflammatory response, promoting tissue repair, inducing ectopic calcification and maintaining bone homeostasis. The effect of PTX3 on bone mineral density (BMD) may be affected by many factors. In PTX3 knockout mice and osteoporosis (OP) patients, the deletion of PTX3 will lead to decrease of BMD. In Korean community "Dong-gu study", it was found that plasma PTX3 was negatively correlated with BMD of femoral neck in male elderly patients. In terms of bone related cells, PTX3 plays an important role in maintaining the phenotype and function of osteoblasts (OB) in OP state;for osteoclast (OC), PTX3 in inflammatory state could stimulate nuclear factor κ receptor activator of nuclear factor-κB ligand (RANKL) production and its combination with TNF-stimulated gene 6(TSG-6) could improve activity of osteoclasts and promote bone resorption;for mesenchymal stem cells (MSCs), PTX3 could promote osteogenic differentiation of MSCs through PI3K/Akt signaling pathway. In recent years, the role of PTX3 as a new bone metabolism regulator in OP and fracture healing has been gradually concerned by scholars. In OP patients, PTX3 regulates bone mass mainly by promoting bone regeneration. In the process of fracture healing, PTX3 promotes fracture healing by coordinating bone regeneration and bone resorption to maintain bone homeostasis. In view of the above biological characteristics, PTX3 is expected to become a new target for the diagnosis and treatment of OP and other age-related bone diseases and fracture healing.
Animals
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Male
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Mice
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Bone Resorption/metabolism*
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Cell Differentiation
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Fracture Healing/genetics*
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Osteoblasts
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Osteoclasts
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Osteogenesis
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Osteoporosis/genetics*
;
Phosphatidylinositol 3-Kinases/pharmacology*
7.Monotropein Induced Apoptosis and Suppressed Cell Cycle Progression in Colorectal Cancer Cells.
Quan GAO ; Lin LI ; Qi-Man ZHANG ; Qin-Song SHENG ; Ji-Liang ZHANG ; Li-Jun JIN ; Rui-Yan SHANG
Chinese journal of integrative medicine 2024;30(1):25-33
OBJECTIVE:
To determine whether monotropein has an anticancer effect and explore its potential mechanisms against colorectal cancer (CRC) through network pharmacology and molecular docking combined with experimental verification.
METHODS:
Network pharmacology and molecular docking were used to predict potential targets of monotropein against CRC. Cell counting kit assay, plate monoclonal assay and microscopic observation were used to investigate the antiproliferative effects of monotropein on CRC cells HCT116, HT29 and LoVo. Flow cytometry and scratch assay were used to analyze apoptosis and cell cycle, as well as cell migration, respectively in HCT116, HT29, and LoVo cells. Western blotting was used to detect the expression of proteins related to apoptosis, cell cycle, and cell migration, and the expression of proteins key to the Akt pathway.
RESULTS:
The Gene Ontology and Reactome enrichment analyses indicated that the anticancer potential of monotropein against CRC might be involved in multiple cancer-related signaling pathways. Among these pathways, RAC-beta serine/threonine-protein kinase (Akt1, Akt2), cyclin-dependent kinase 6 (CDK6), matrix metalloproteinase-9 (MMP9), epidermal growth factor receptor (EGFR), cell division control protein 42 homolog (CDC42) were shown as the potential anticancer targets of monotropein against CRC. Molecular docking suggested that monotropein may interact with the 6 targets (Akt1, Akt2, CDK6, MMP9, EGFR, CDC42). Subsequently, cell activity of HCT116, HT29 and LoVo cell lines were significantly suppressed by monotropein (P<0.05). Furthermore, our research revealed that monotropein induced cell apoptosis by inhibiting Bcl-2 and increasing Bax, induced G1-S cycle arrest in colorectal cancer by decreasing the expressions of CyclinD1, CDK4 and CDK6, inhibited cell migration by suppressing the expressions of CDC42 and MMP9 (P<0.05), and might play an anticancer role through Akt signaling pathway.
CONCLUSION
Monotropein exerts its antitumor effects primarily by arresting the cell cycle, causing cell apoptosis, and inhibiting cell migration. This indicates a high potential for developing novel medication for treating CRC.
Humans
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Proto-Oncogene Proteins c-akt/metabolism*
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Cell Proliferation
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Matrix Metalloproteinase 9
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Molecular Docking Simulation
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Cell Cycle
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ErbB Receptors
;
Apoptosis
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Colorectal Neoplasms/pathology*
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Cell Line, Tumor