[Objective] Build gangrene etiology and pathogenesis of frame structure, this paper discusses the etiology and pathogenesis theory. [Methods] Based on the time axis oriented, taking "Chinese Medical Code" as a search tool, "gangrene" as the key word, search Qin and Han Dynasties to the late Qing Dynasty physician medical books, and with the library books proofreading ,this paper will be of the ancient literature about etiology and pathogenesis of clips in series, and carries on the combation and analysis .[Result]To sum up gangrene of etiology and pathogenesis, theory framework is divided into four periods:Begin in the Qin and Han Dynasties, the development in the Wei and Jin Dynasties, rich in Song and Yuan Dynasties, perfect and enrich in the Ming-Qing Dynasty. Its etiology and pathogenesis are concise:yin-yang disharmony, cold coagulation to stasis;toxic heat accumulation. burns essence;Qi and Yin waste, blood stasis inchannels. [Conclusion] Through the gangrene of etiology and pathogenesis of frame structure building, not only can deepen the understanding of the disease, also provide a theoretical basis and ideas for the treatment of the diseases associated with modern medicine.In order to make a modest contribution to the majority of clinical work and scientific researchers.

This animal experiment was aimed at the questions whether high glucose concentration inhibits insulin secretion (glucose toxicity, GT) of beta-cell of islets from SHR and Wistar-Kyoto (WKY) rat and whether adrenomedullin (AM) enhances GT. Ten 6-week-old SHRs (test group) and ten 10-week-old Wistar-Kyoto rats (WKY) (control group) were selected. RAMI-1640 medium containing 5.6 mM glucose (normal glucose group) and 20 mM glucose (high glucose group) were applied. Various concentrations of AM (0, 10(-8), 10(-7), 10(-6) M) and RPMI-1640 medium containing high glucose were mixed, respectively. The isolated islets from rats were put into 12-well plates (90 islets/well). The islets were incubated in RAMI-1640 medium containing normal or high glucose for one hour. Then the supernatants from both incubations were determined by RIA for insulin. In SHR group, the insulin concentration in supernatants gained from high glucose group without AM was lower than that from normal glucose group (19.9+/-6.6 vs 60.9+/-33.6 mU/L, P<0.05). With the increment of the concentration of AM, insulin concentration in supernatants from islets incubated in high glucose and various concentrations of AM tended to be low further (19.9+/-6.6 vs 22.2+/-8.0 vs 21.5+/-5.6 vs 17.9+/-3.6 mU/L). The changing tendency in control group was the same as in SHR group. When the islets were incubated in normal glucose and high glucose medium, the insulin concentration in supernatant significantly decreased in SHR group compared with that in control group (P<0.01). The insulin secretion was inhibited by high glucose in beta-cell of islets from SHR and WKY. The results suggest GT to beta-cell of islets from SHR and WKY. AM tended to inhibit insulin secretion in a dose-dependent manner in beta-cell of islets from SHR and WKY. The inhibition of insulin secretion caused by high glucose in beta-cell of islets from SHR was more remarkable than from WKY. This may be related to secretion dysfunction in beta-cell of islets from SHR.
Adrenomedullin ; Animals ; Blood Glucose ; metabolism ; Cells, Cultured ; Female ; Glucose ; pharmacology ; Hyperglycemia ; blood ; Hypertension ; metabolism ; pathology ; Insulin ; secretion ; Insulin Resistance ; Islets of Langerhans ; drug effects ; pathology ; secretion ; Male ; Peptides ; pharmacology ; Rats ; Rats, Inbred SHR ; Rats, Inbred WKY

OBJECTIVE:To compare the composition changes of Aurantii fructus before and after fermentation processing and optimize its fermentation processing technology. METHODS:UPLC was conducted to compare the raw and fermentation processed products of same batch of Aurantii fructus,and ensure the chromatographic peaks after fermentation processing. Using peak areas of 4 chromatographic peaks and mildew characteristics of samples as index,fermentation temperature,humidity and time as factor, L9(34)orthogonal test was designed to optimize the fermentation processing technology,and verified it. RESULTS:After fermenta-tion processing,Aurantii fructus obviously showed 2 new monosaccharide glycosides components;the optimized fermentation tech-nology was as follows as fermentation temperature of 30 ℃,humidity of 70% and time of 7 d;verification test results showed RSD of each indicator of decoction pieces prepared by optimized fermentation technology in 3 tests were lower than 2.0%(n=3). CONCLUSIONS:Fermentation processing may lead obvious chemical composition changes in Aurantii fructus;the optimized fer-mentation processing technology can increase the contents of characteristic peaks.

Objective:To evaluate the effect of orexin A on morphine-induced gastrointestinal dysfunction in mice.Methods:Forty SPF C57B/6 mice, aged 6-8 weeks, half male and half female, weighing 18-22 g, were divided into 5 groups ( n=8 each) using a random number table method: control group (group C), morphine group (group M) and morphine + different doses of orexin A groups (MOH, MOM and MOL groups). Normal saline 8 ml/kg was subcutaneously injected daily in group C, morphine 6 mg/kg was subcutaneously injected daily in the other four groups, and orexin A 75, 50 and 25 μg/kg were subcutaneously injected daily for 10 days at the same time in MOH, MOM and MOL groups.The fetal water content was calculated and averaged daily.After the last administration, the mice were gavaged with black nutrient paste, and the gastric emptying rate and small intestinal propulsion rate were detected 30 min later.Blood samples were collected from the orbit, and the concentration of serum gastrin (GAS) was detected by enzyme-linked immunosorbent assay.The mice were then sacrificed, and colon tissues were removed for determination of c-kit positive cell area (by immunohistochemistry) and expression of c-kit, substance P (SP) and neural nitric oxide synthase (nNOS) in colon tissues (by Western blot). Results:Compared with group C, the rate of fecal water content, gastric emptying rate, small intestinal propulsion rate and serum GAS concentration were significantly decreased, the area of c-kit positive cells was decreased, and the expression of c-kit and SP was down-regulated, and the expression of nNOS was up-regulated in group M ( P<0.05). Compared with group M, the small intestinal propulsive rate and serum GAS concentration were significantly increased, and the area of c-kit positive cells was increased, and the expression of c-kit was up-regulated in group MOH, the rate of fecal water content, gastric emptying rate, small intestinal propulsion rate and serum GAS concentration were significantly increased, the area of c-kit positive cells was increased, and the expression of c-kit and SP was up-regulated, and the expression of nNOS was down-regulated in group MOM, and the serum GAS concentration and c-kit positive cell area were significantly increased in group MOL ( P<0.05). Conclusions:Orexin A 50 μg/kg can effectively alleviate the gastrointestinal dysfunction induced by morphine in mice, and the mechanism may be related to promotion of GAS secretion, interstitial cells of Cajal growth and SP release and inhibition of NO release.

Objectives:This study aims to investigate the impact of different Low-Density Lipoprotein cholesterol(LDL-C)levels on progression of intermediate coronary stenosis,and the associated risk factors leading to the progression of such lesions. Methods:Data were collected on 219 consecutive patients admitted at the Fuwai Central China Vascular Hospital from January 2020 to February 2021,underwent angiographic examinations and diagnosed with intermediate coronary stenosis,with at least one follow-up angiography after 11 months.Offline quantitative flow ratio(QFR)analysis was performed on these cases.Patients were divided into two groups:LDL-C controlled group(LDL-C<1.8 mmol/L,148 patients with 191 vessels)and LDL-C uncontrolled group(LDL-C≥1.8 mmol/L,71 patients with 98 vessels).Coronary artery QFR and anatomical indicators such as minimal lumen diameter,minimal lumen area,percentage diameter stenosis,percentage area stenosis were compared within and between the groups.Further analysis was performed to identify influencing factors leading to changes in coronary physiological parameters derived from QFR. Results:Within the LDL-C controlled group,there was no significant difference in the QFR values of the vessels compared to baseline(P>0.05),whereas in the LDL-C uncontrolled group(P<0.05),a notable decline in QFR was observed.Patients in the LDL-C controlled group had lower rates of maximum diameter and area stenosis and higher minimum lumen diameter and area(all P<0.05).Through multifactorial Logistic regression analysis,it was found that a body mass index＞28 kg/m2,LDL-C≥1.8 mmol/L,and a history of myocardial infarction were independent risk factors leading to the decline in QFR(all P<0.05). Conclusions:It was found that patients in the LDL-C controlled group had higher coronary artery QFR,minimum lumen diameter and area,lower rates of maximum diameter and area stenosis.

OBJECTIVETo investigate the effects of baicalin against Candida albicans germ tube formation, and adherence to buccal epitherial and vaginal epitherial cells.

METHODVarious concentrations of baicalin (100, 50, 10 mg x L(-1)) were incubated with C. albicans suspension, the mixed suspension of C. albicans and human buccal epitherial cells, the mixed suspension of C. albicans and vaginal epitherial cells, respectively. The effects of baicalin on C. albicans germ tube formation, and adherence to buccal epitherial and vaginal epitherial cells were then assessed microscopically.

RESULTAll concentrations of baicalin could inhibit C. albicans germ tube formation, and adherent to buccal epitherial and vaginal epitherial cells,while there was no significant difference between standard and clinical strains.

CONCLUSIONBaicalin could inhibit C. albicans germ tube formation, and adherence to buccal epitherial and vaginal epitherial cells.

Adult ; Anti-Infective Agents ; pharmacology ; Candida albicans ; drug effects ; growth & development ; physiology ; Candidiasis ; drug therapy ; microbiology ; Cheek ; microbiology ; Epithelial Cells ; microbiology ; Female ; Flavonoids ; pharmacology ; Humans ; Mouth Mucosa ; microbiology ; Vagina ; microbiology ; Young Adult

Objective:To evaluate the preventive effect of indwelling pancreatic duct guide wire through nasobiliary drainage catheter for post-endoscopic retrograde cholangiopancreatography (ERCP) pancreatitis (PEP) in cholelithiasis patients with small-caliber pancreatic duct.Methods:The clinical data of 127 patients with gall bladder and common bile duct stones undergoing ERCP and elective laparoscopic cholecystectomy in the Cholelithiasis Center of Shanghai East Hospital Affiliated to Tongji University from January 2019 to June 2023 were analyzed retrospectively, including 55 males and 72 females, aged (56.95±10.86) years old. According to the preventive methods of PEP, patients were divided into the guide wire group (indwelling pancreatic duct guide wire through nasobiliary drainage catheter), stenting group (nasobiliary catheter with 5Fr 5 cm single pigtail pancreatic duct stent) and conventional group (nasobiliary catheter). The incidence of post-ERCP hyperamylasemia (PEH) and PEP were compared.Results:The incidence of PEH in the guide wire group was lower than that in the conventional group [17.8% (8/45) vs. 43.5% (10/23), P=0.023], and also lower than that in the stenting group [17.8% (8/45) vs. 32.2% (19/59)], despite no statistical significance ( P=0.337). The incidences of PEH were comparable in the stenting group and conventional group [32.2% (19/59) vs. 43.5% (10/23), P=0.096)]. The incidence of PEP in the guide wire group was lower than that in both the stenting group [6.7% (3/45) vs. 23.7% (14/59), P=0.030]. and conventional group [6.7% (3/45) vs. 30.4% (7/23), P=0.025]. The incidences of PEP were comparable in the stenting and conventional group [23.7% (14/59) vs. 30.4% (7/23), P=0.532]. Conclusion:Compared to the preventive pancreatic duct stenting, indwelling pancreatic duct guide wire through nasobiliary drainage catheter can effectively prevent the PEH and PEP in high-risk patients with a small-caliber pancreatic duct.

Objective:To explore the relationship between risk perception and health promoting lifestyle profile in population with cardiovascular disease (CVD), and construct a prediction model for clinical screening and targeted intervention.Methods:A cross-sectional survey method was used to select 272 people at moderate and high risk of CVD from the Second Affiliated Hospital of Zhejiang University School of Medicine from March to August 2022. The general information questionnaire, Chinese version of Attitude and Beliefs about Cardiovascular Disease Knowledge and Risk Questionnaire (ABCD-C), and Health Promoting Lifestyle Profile-II (HPLP Ⅱ) were used. Based on multiple regression analysis, a nomogram model for health promoting lifestyle in high-risk CVD population was constructed.Results:Among 272 participants, male 150 cases, female 122 cases, aged (60.58 ± 10.64) years old. The total ABCD-C score was (56.57 ± 5.69), and the total HPLP Ⅱ score was (111.92 ± 12.47). ABCD-C score was significantly positively correlated with HPLP Ⅱ score ( r=0.556, P<0.01). The median of HPLP Ⅱ total score (111 points) was used as the cut-off point for low level of health-promoting lifestyle (≤111 points) and high level of health-promoting lifestyle (>111 points), and used it as the dependent variable, smoking ( OR=0.215, 95% CI 0.104-0.446) was a barrier factor for participants to adopt healthy lifestyle; being married ( OR=14.237, 95% CI 1.963-103.238), having a family average monthly income higher than 5 000 yuan ( OR=4.101, 95% CI 1.369-12.288), higher score of CVD prevention knowledge ( OR=1.660, 95% CI 1.373-2.007), perceived benefits and intention to change physical activity ( OR=1.445, 95% CI 1.255-1.663), perceived benefits and intention to change healthy diet ( OR=1.322, 95% CI 1.058-1.654) were promoting factors. Conclusions:The health-promoting lifestyle of populations at risk for CVD is above-average, influenced by factors such as smoking, marital and economic status, risk attitudes, and beliefs. Utilizing the nomogram model for early screening and targeted risk communication among key populations may contribute to improving their health behavior.

Objective:To study the feasibility and safety of percutaneous jejunal drainage in treatment of hepatolithiasis after choledochojejunostomy.Methods:The clinical data of 24 patients with hepatolithiasis after choledochojejunostomy treated by percutaneous jejunal drainage at the Cholelithiasis Center, Shanghai East Hospital Affiliated to Tongji University from May 2021 to May 2022 were retrospectively analyzed. There were 16 males and 8 females, aged (50.46±10.89) years old. Ultrasound and X ray guided percutaneous jejunography was performed under local anesthesia for patients with hepatolithiasis after choledochojejunostomy. Then the fistula was directly dilated to 16.0Fr, and percutaneous jejunal choledochoscopy was performed 3 days later. The success rate, complication rate and stone removal rate were analysed.Results:Twenty-four patients were treated with percutaneous jejunography, with a success rate of 79.2%(19/24), including 19 patients after anterior colonic cholangiojejunostomy with a success rate of 94.7%(18/19), and 5 patients after retrocolonic cholangiojejunostomy with a success rate of 20.0%(1/5). There was no complication including bleeding, intestinal leakage and bile leakage. In 19 patients with successful percutaneous jejunography, the success rate of fistula dilation was 100%(19/19), and there was no complication. Five patients with failed percutaneous jejunography underwent open choledocholithotomy through the jejunal output-loop, and bile leakage occurred in one patient. Thirteen patients with anastomotic stenosis, 5 with intrahepatic biliary strictures, and 6 with anastomotic and intrahepatic biliary strictures were diagnosed by choledochoscopy and selective cholangiography in these 24 patients. After choledochoscopic electrotomy, cylindrical balloon dilation, stone removal, stenting and other treatments, the stenosis relief rate was 100%(24/24), and the clearance rate of intrahepatic bile duct stones was 91.7%(22/24).Conclusion:Percutaneous jejunal drainage was a feasible, safe and minimally invasive method for treatment of hepatolithiasis after choledochojejunostomy. The procedure was especially suitable for patients with anterior colonic cholangiojejunostomy.

Contributing to organ formation and tissue regeneration, extracellular matrix (ECM) constituents provide tissue with three-dimensional (3D) structural integrity and cellular-function regulation. Containing the crucial traits of the cellular microenvironment, ECM substitutes mediate cell-matrix interactions to prompt stem-cell proliferation and differentiation for 3D organoid construction in vitro or tissue regeneration in vivo. However, these ECMs are often applied generically and have yet to be extensively developed for specific cell types in 3D cultures. Cultured cells also produce rich ECM, particularly stromal cells. Cellular ECM improves 3D culture development in vitro and tissue remodeling during wound healing after implantation into the host as well. Gaining better insight into ECM derived from either tissue or cells that regulate 3D tissue reconstruction or organ regeneration helps us to select, produce, and implant the most suitable ECM and thus promote 3D organoid culture and tissue remodeling for in vivo regeneration. Overall, the decellularization methodologies and tissue/cell-derived ECM as scaffolds or cellular-growth supplements used in cell propagation and differentiation for 3D tissue culture in vitro are discussed. Moreover, current preclinical applications by which ECM components modulate the wound-healing process are reviewed.
Cell Differentiation ; Cell Proliferation ; Decellularized Extracellular Matrix ; Extracellular Matrix/metabolism* ; Humans ; Mesenchymal Stem Cells ; Tissue Engineering/methods* ; Tissue Scaffolds/chemistry*