Objective:To compare the extent and time course of alveolar bone loss and osteoclast activation in two murine models of periodontal disease:molar ligation and Porphyromonas gingivalis (P.gingivalis) oral inoculation.Methods:A split-mouth design was applied to two groups of mice (C57BL6,6-8 weeks old,n =24 in both groups),resulting in four treatment groups:(1) Control group:unligated upper right 2nd molars receiving CMC only,(2)Ligature group:ligation of a 9-0 suture around the upper left 2nd molar,(3) P.gingivalis group:unligated upper right 2nd molar receiving P.gingivalis challenge only,(4)Ligature ± P.gingivalis group:ligation of the upper left 2nd molar in combination with oral inoculation with 109 colony-forming units(CFU) P.gingivalis.Alveolar bone loss was measured as the cementoenamel junction and alveolar bone crest (CEJ-ABC) distance.In the study,48 C57BL6 mice were designed and treated as described above,and osteoclasts were counted on histological sections following tartrate-resistant acid phosphatase (TRAP) staining and counts were normalized to alveolar bone surface distance.Then 36 C57BL6 mice were investigated,of which 30 were ligated a 940 silk ligature around the 2nd molar in the left maxillary quadrant and 6 were not ligated.After ligation for 1 week,the ligatures in 12 mice were taken off for either 1 week or 2 weeks.The CEJ-ABC distance of the 6 mice without ligation was baseline.The CEJ-ABC distances were measured and analyzed.The data were analyzed with one-way ANOVA.Results:Molar ligation induced marked alveolar bone loss after 3,6,9 and 12 weeks [(0.16 ±0.04) mm,(0.16 ±0.02) mm,(0.18 ±0.03) mm,(0.17 ±0.02) mm],vs.corresponding controls [(0.09 ± 0.03) mm,(0.10 ± 0.01) mm,(0.12 ± 0.04) mm,(0.12 ± 0.01) mm] andP.gingivalisgroup [(0.09±0.03)mm、(0.12±0.01)mm,(0.12±0.02)mm,(0.10± 0.01) mm],P ＜ 0.05.Combined treatment with molar ligation and P.gingivalis did not further increase the CEJ-ABC distance.Evidence for osteoclast activation was found one day after molar ligation,and TRAP-positive cell numbers peaked on day 3 (12 ±4 vs.control 2 ±2,P ＜0.01).After taking off ligature following ligation for 2 weeks,it showed significantly regrowth of alveolar bone compared with that before removal of the ligature on day 7 [(0.07 ±0.02) mm vs.(0.13 ± 0.01) mm,P ＜ 0.01].Conclusion:Molar ligation is a rapid and effective way to induce periodontal bone loss in mice.Osteoclast activation occurs within 24 hours of ligature placement,and the extent of bone loss well exceeds that of the P.gingivalis-induced bone loss.Removing ligature after periodontal disease might help bone regeneration by regrowth of the alveolar bone.

Objective To compare the clinical effect and safety evaluation of three different dose regimens for treating children with viral encephalitis.Methods Totally 126 cases treated in Xi'an Central Hospital from January 2010 to December 2015 were randomly divided into observation group 1 (ganciclovir combined with gangliosides,42 cases),observation group 2 (ganciclovir combined with gamma globulin,43 cases),and control group (39 cases).The clinical effect and levels of NSE,inflammatory cytokine were compared in the three groups.Results The total effective rate in observation group 1 was 95.24％ and that of observation group 2 was 93.02％,which were significantly higher than that of control group (79.48％).The disappearance time of headache,fever,convulsions,clouding of consciousness,meningeal irritation sign,cerebrospinal fluid abnormalities,and length of stay in observation groups (both 1 and 2)were significantly shorter than those in control group (P ＜ 0.05);After therapy,the levels of NSE in three groups were obviously decreased compared with those before therapy (P ＜ 0.05),and those in observation group were significantly lower than the control group (P ＜ 0.05);the levels of inflammatory cytokine in all three groups were obviously decreased compared with those before therapy (P ＜ 0.05),and that of observation group 1 had no statistical difference with the normal group,whereas that in control group was significantly higher than the normal group (P ＜ 0.05).Conclusion Ganciclovir combined with gangliosides as well as ganciclovir combined with gamma globulin were both effective methods in treating children with viral encephalitis and could decrease levels of inflammatory cytokine.Ganciclovir combined with gangliosides could effectively repair nerve damage,which deserves clinical expansion.

OBJECTIVE:To provide reference for the implementation of Quality Management Guidance of TCM Trust-agent Decocting in Medical Institutions in Shanghai. METHODS:Stratified random sampling method was adopted for the questionnaire of TCM trust-agent decocting in 13 medical and health institutions in the suburb of Shanghai. RESULTS:A total of 13 question-naires were sent out and 13 valid questionnaires were received with the effective rate of 100%. In the 13 medical and health institu-tions,12 medical and health institutions partially or fully adopted trust-agent decocting,and the trust-agent decocting in the 12 med-ical and health institutions accounted for 92.3% in all trust-agent decocting;the 12 medical and health institutions with TCM trust-agent decocting service for patients included 9 pharmaceutical factories and 3 pharmacies;label related problems (including name error,oral and topical label error and stickers unclear) and leakage were the main quality problems,accounting for 33.0%and 31.0%,respectively;83.3% of the medical and health institutions didn’t establish the file of the quality control for TCM trust-agent decocting;decocting process was the most important factor that affects the quality. CONCLUSIONS:Implementing a re-gional Quality Management Guidance of TCM Trust-agent Decocting in Medical Institutions in Shanghai and establishing a system that drug administration,industry associations and medical and health institutions are participated in have great significance to pro-mote the healthy development of TCM trust-agent decocting service and ensure patients’medication safety.

Objective To study the clinical value of magnetically controlled capsule endoscopy in diseases screening. Method We retrospectively analyzed 61 cases which were evaluated by magnetically controlled capsule endoscopy from March 2015 to December 2016. The items include operating time, the divergence rate score and cleanliness score of stomach. The consistency was compared between magnetically controlled capsule endoscopy and gastric duodenal endoscopy. Results 61 upper gastrointestinal tract studies were included. The mean age was (49.4 ± 11.6) years. No capsule retention, perforation or bleeding occurred. There was 98.4% patients, which cleanliness of stomach was good. There was 68.9% patients, which filling degree of stomach was good. The concordance rate of the two tests of gastrduodenoscopy and magnetically controlled capsule endoscopy was 89.9% (80/89). The concordance rate of the two tests was 78.9% (15/19) in esophageal and cardia, 92.9% (52/56) in stomach, 92.9% (13/14) in duodenum. Conclusion Our experience shows that magnetically controlled capsule endoscopy is a safe and useful tool for the diagnosis of upper gastrointestinal tract disease. The detection rate is similar to gastrduodenoscopy.

Objective:To compare the clinical effect and safety of three different regimens treating children with severe pneumonia.Methods:120 cases treated in our hospital from January,2012 to January,2016 were randomly divided into the observation group 1 (dopamine combined with dobutamine,42 cases),observation group 2 (dopamine combined with phentolamine,40 cases),control group (38 cases).The clinical effect and levels of inflammatory cytokine were compared between the three groups.Results:The total effective rate in the observation group 1 was 90.48％ and that of observation group 2 was 87.5％,which were significantly higher than that of the control group (63.16％).The disappearance time of pulmonary rales,cough,dyspnea,pyretolysis and length of stay in the observation group (both 1,2) were significantly shorter than those of the control group (p ＜0.05).After therapy,the level of serum IL-6,IL-8,CRP and TNF-α in all the three groups were obviously decreased compared with those of before therapy (p＜0.05),and those of the observation group were significantly lower than the control group (p ＜ 0.05).Conclusion:Dopamine combined with dobutamine as well as dopamine combined with phentolamine were both effective methods in treating children with severe pneumonia,which were significantly better than conventional therapy.

OBJECTIVE: To observe the promoting effect of arnebia root oils on expression of basic fibroblast growth factor (bFGF) in skin wound of rabbits and the histomorphological changes in the wound surface, and to discuss its mechanism. METHODS: Bilateral round skin wounds were made on the back of 15 rabbits. The three wounds on one side of the back of each rabbit were treated with arnebia root oils, while the three wounds on the other side were treated with vaseline in order to promote the wound healing. The histomorphology and ultrastructure under electron microscopy of the wounds, and the rate of wound healing were examined at different time. Western blotting assay was used to detect the expression of bFGF in the wound surface. RESULTS: The healing rate of the arnebia root oils-treated wounds was evidently higher than that of the vaseline-treated wounds (P<0.05). The quantities of fibroblast, collagen and capillary in the arnebia root oils-treated wounds were much more than those in the vaseline-treated wounds, and the expression of endogenous bFGF in the arnebia root oils-treated wounds was enhanced obviously as compared with that in the vaseline-treated wounds in different period of wound healing. There existed a parallel correlation between the expression level of bFGF and the rate of wound healing. CONCLUSION: The promoting effect of arnebia root oils on wound healing may be related to increasing the expression level of basic fibroblast growth factor in the skin wound.

Objective To explore the clinical value of serum procalcitonin (PCT)-based antibiotic therapy in the second-classedexacerbations of chronic obstructive pulmonary disease (AECOPD). Methods 240 patients diagnosised as AECOPD were randomized to the PCT group and the control group. Serum PCT levels of patients from the PCT group were measured 1 h after hospitalized and the third, fifth, eighth day respectively. When PCT < 0.1 μg / L, patients will stop taking antibiotics and initiated while PCT≥0.1 μg / L. Antibiotic treatment in the control group was based on guidelines of COPD diagnosis and treatment. Results Duration of antibiotic therapy and hospitalization were respectively 5.6 ± 1.4 and 8.2 ± 1.1 days in the PCT group, 9.2 ± 2.2 and 11.4 ± 2.5 days in the control group (both P < 0.05). Mean costs of hospitalization expensesand antibiotic therapy were 5700 ± 201 and 1650 ± 189) yuan in the PCT group, 6210 ± 220 and 2350 ± 210 yuan in the control group (both P < 0.05). The clinical effective rate, times of exacerbation, one-year ΔFEV1, the 1-year hospitalization rate and time to next exacerbation all showed no significant differences between the two groups. Conclusion PCT-guided antibiotic treatment reduces antibiotic use inthe second-classed acute exacerbations patients.

OBJECTIVETo investigate the clinical effect of modified Koyanagi technique with coverage by tunica vaginalis of testis in severe hypospadias.

METHODS49 cases with severe hypospadias treated from Jan. 2009 to Sep. 2011 were retrospectively studied. 25 patients underwent Koyanagi technique with coverage by tunica vaginalis of testis. 24 cases underwent one-stage Duplay + Duckett technique in the same term. The patients were followed up for 7-24 months.

RESULTSAmong the 25 children treated with Koyanagi procedure, 20 cases were cured, 5 patients had postoperative complications, including urethral fistula in 3 cases,urethral stenosis in 2 cases. At the same time, in the Duplay + Duckett group, 17 cases were cured, 7 children had postoperative complications, including urethral fistula in 4 cases, and urethral stenosis in 3 cases. All the patients with urethral fistula were repaired successfully 6 months after the first surgery; The urethral stenosis were cured by dilatation within 1 to 3 months. The successful rate in the 2 groups had no significant difference(P >0.05).

CONCLUSIONSKoyanagi technique with coverage by tunica vaginalis of testis is relatively simple with similar effect as Duplay + Duckett technique for severe hypospadias.

Child ; Child, Preschool ; Humans ; Hypospadias ; surgery ; Male ; Postoperative Complications ; etiology ; therapy ; Retrospective Studies ; Surgical Flaps ; transplantation ; Testis ; surgery ; Urethral Diseases ; etiology ; therapy ; Urethral Stricture ; etiology ; therapy ; Urinary Fistula ; etiology ; surgery

OBJECTIVETo explore the molecular biological mechanism of Arnebia Root oil (AO) in promoting the recovery of surface of wound by observing basic fibroblast growth factor (bFGF) mRNA expression in the wound tissue and healing rate of the wound.

METHODSPatients in the observed group with their wound treated by AO and those in the control group treated by petrolatum gauze. The wound surface healing rate was estimated and bFGF mRNA expression was observed by RT-PCR.

RESULTSEndogenous bFGF mRNA expression existed in the wound surface of both groups, but its level in the observed group at any time point was obviously higher than that in the control group respectively, with significant difference in comparison of the gray density between the two groups (P < 0.05). The wound surface healing rate kept abreast with bFGF mRNA expression in wound tissues, so it was significantly higher in the observed group than that in the control group (P < 0.05). GAPDH gene, which was taken as a parameter for internal reference, expressed with a certain amount unchanged in different periods of healing (P > 0.05 ).

CONCLUSIONAO shows obviously promotive action on bFGF, an important regulatory factor on wound healing, it might complete the recovery process by stimulating the increase of bFGF.

Adolescent ; Adult ; Boraginaceae ; chemistry ; Drugs, Chinese Herbal ; administration & dosage ; Female ; Fibroblast Growth Factor 2 ; biosynthesis ; genetics ; Humans ; Male ; Middle Aged ; Phytotherapy ; Plant Oils ; administration & dosage ; isolation & purification ; Plant Roots ; chemistry ; RNA, Messenger ; biosynthesis ; genetics ; Wound Healing ; drug effects ; Wounds and Injuries ; drug therapy ; metabolism

Objective To investigate the potential of immune-inflammatory markers and the characteristics of magnetically controlled capsule endoscopy in distinguishing gastric adenocarcinoma from precancerous lesions,as well as to develop and validate a risk prediction model.Methods Retrospective analysis was conducted on medical records of 578 patients who underwent magnetic controlled capsule endoscopy at our hospital between January 2021 and December 2023.Following the principle of Pareto's law(80/20 rule),they were randomly divided into a training set(462 cases)and a validation set(116 cases).Magnetic controlled capsule endoscopy and blood cell tests were performed,with pathological diagnosis results serving as the"gold standard",to classify patients into groups of gastric adenocarcinoma and precancerous lesions.The magnetic controlled capsule endoscopic features,neutrophil-lymphocyte ratio(NLR),platelet-lymphocyte ratio(PLR)in patients with gastric adenocarcinoma and precancerous lesions were compared to develop and validate a risk diagnostic model for gastric adenocarcinoma.Results Among the 462 patients who underwent magnetic controlled capsule endoscopy,gastric adenocarcinoma was diagnosed in 76 cases through pathological examination,accounting for 16.45%(76/462),while precancerous lesions were observed in 386 cases,accounting for 83.55%(386/462).In the validation set of 116 patients who underwent gastric endoscopy,there were 22 cases of gastric adenocarcinoma,representing an incidence rate of 18.97%(22/116),and a total of 94 cases with precancerous lesions,accounting for an incidence rate of 81.03%(94/116).No statistically significant differences(P＞0.05)were found between the two groups regarding lesion size,border appearance,mucus presence or lesion morphology.However,compared to the precancerous lesion group,the proportion of whitish coloration as well as irregular surface microstructure and grid-like microvessels was significantly higher in the gastric adenocarcinoma group(P＜0.05).Moreover,both NLR and PLR values were significantly higher in the gastric adenocarcinoma group compared to those in the precancerous lesion group(P＜0.05).Irregular surface microstructure(OR=2.213,95%CI:1.288～3.801),irregular grid-like microvessels(OR=2.489,95%CI:1.458～4.249),NLR(OR=2.369,95%CI:1.389～4.046),and PLR(OR=3.016,95%CI:1.767～5.148)were identified as risk factors for gastric adenocarcinoma(P＜0.05).The sensitivity of the risk model for diagnosing gastric adenocarci-noma in the training set was 0.800(95%CI:0.716～0.891),with a specificity of 0.783(95%CI:0.694～0.851)and an area under the curve of 0.858(95%CI:0.787～0.931).In the validation set,the sensitivity for diagnosing gastric adenocarcinoma was 0.861(95%CI:0.771～0.945),with a specificity of 0.769(95%CI:0.683～0.841)and an area under the curve of 0.844(95%CI:0.765～0.923).Conclusion The surface microstructure,microvas-cular morphology,NLR,and PLR of gastric lesions are correlated with the occurrence of gastric adenocarcinoma.Developing a risk diagnostic model facilitates early identification and diagnosis of gastric adenocarcinoma.