OBJECTIVE: To investigate the effect of suture of pronator muscle on forearm function after modified Henry approach for distal radius fractures. METHODS: from January 2018 to December 2020, 220 patients with distal radius fractures were treated with open reduction and locking plate internal fixation through the modified Henry approach. They were divided into two groups according to different suture methods. There were 112 cases in the intraoperative suture group, including 35 males and 77 females;The age ranged from 37 to 65(48.5±7.4) years;AO classification of fracture, 46 cases of type B and 66 cases of type C;After fracture reduction and locking plate fixation, the pronator muscle was opened and sutured. There were 108 cases in the non suture group, 32 males and 76 females;The age ranged from 34 to 67(47.6±7.8) years;There were 41 cases of fracture type B and 67 cases of fracture type C;After fracture reduction and locking plate fixation, the open pronator muscle was not sutured, and it was laid on the surface of the plate in situ. The range of wrist motion (pronation, supination, palmar inclination and dorsiflexion), the score of disability of arm shoulder and hand dash and visual analog scale(VAS) were compared between the two groups at 6 weeks and 6 months after operation. RESULTS: All 220 patients were followed up for 6 to 18 (8.5±1.3) months. There was no significant difference in the range of motion and DASH score of forearm and wrist between the two groups 6 weeks after operation (P>0.05);There was significant difference in VAS score between suture group (2.6±1.2) and non suture group (5.8±2.3)(P<0.05). Six months after operation, there was no significant difference in the range of motion, DASH score and VAS score of forearm and wrist between the two groups(P>0.05). CONCLUSION The modified Henry approach has no obvious advantages in the range of wrist movement and upper limb function, but the intraoperative suture of pronator can reduce the early postoperative pain. It is suggested that the pronator should be sutured during the operation.
Adult ; Aged ; Bone Plates ; Female ; Forearm ; Fracture Fixation, Internal ; Humans ; Male ; Middle Aged ; Muscle, Skeletal/surgery* ; Radius Fractures/surgery* ; Range of Motion, Articular ; Sutures ; Treatment Outcome

OBJECTIVETo compare the postoperative recovery among patients undergoing orthotopic bladder substitution with sigmoid or ileal grafts.

METHODSThe clinical data and postoperative recovery (postoperative complications, continence recovery time and postoperative hospital stay) of 84 patients receiving orthotopic bladder substitution with sigmoid or ileal grafts after radical cystectomy for bladder cancer were analyzed.

RESULTSOf the 84 cases, 70 had continent urinary reservoirs constructed, among whom 58 (aged 48-89 years) received an ileal neobladder (IN) and 12 (aged 28-80 years) received a sigmoid neobladder (SN). The postoperative complications rate, continence recovery time and postoperative hospital stay in IN group was 29.3% (17/58), 91.4%, and 23.5 days, as compared to 58.3%(7/12) (P=0.04), 66.7% (P=0.03), and 25 days (P=0.04) in patients in SN group, respectively.

CONCLUSIONA neobladder constructed from ileal grafts achieves better postoperative recovery results compared to a neobladder constructed from sigmoid grafts.

Adult ; Aged ; Aged, 80 and over ; Colon, Sigmoid ; transplantation ; Female ; Humans ; Ileum ; transplantation ; Male ; Middle Aged ; Reconstructive Surgical Procedures ; methods ; rehabilitation ; Urinary Bladder Neoplasms ; rehabilitation ; surgery ; Urinary Diversion ; methods ; rehabilitation

【Objective】 To explore the effectiveness and safety of polyglycolic acid (PGA) and hydroxypropyl methylcellulose (HPMC) composite materials in distal pancreatectomy postoperative suturing. 【Methods】 We selected 36 healthy adult beagles and divided them randomly into observation group and control group, with 18 distal pancreatectomy surgeries in each group. The observation group used PGA+HPMC composite materials for incision reinforcement while the control group used NEOVEIL for incision reinforcement. 3 days before surgery, 3 days after surgery, and before dissection, blood routine tests were performed on each group of experimental dogs. Observation periods of 2-week, 4-week and 8-week were set, and six animals at each observation point were evaluated for histological examination of heart, liver, spleen, lung, and kidney tissues, hard tissue slice pathological diagnosis, and safety evaluation. 【Results】 There was no significant difference between the observation group and the control group in the preoperative blood routine test. Repeated measures ANOVA results showed differences in the mean values of white blood cell count (WBC) ( F=14.875, P=0.001), mean corpuscular hemoglobin concentration (MCHC) (F=5.049,P=0.009), neutrophil percentage (Neu%) (F=4.794, P=0.011), red blood cell count (RBC) (F=6.591, P=0.002), hemoglobin (HGB) (F=8.154, P=0.001), hematocrit (HCT) (F=5.281, P=0.007), platelet count (PLT) (F=6.560, P=0.014), red blood cell distribution width coefficient of variation (RDW-CV) (F=33.950, P=0.039), or lymphocyte percentage (Lym%) (F=3.299, P=0.043) at different time points. However, the observation group and the control group did not differ, and the interaction between time and group had no significant effect on the above indicators, suggesting that both groups of dogs had inflammatory response or surgical stress. For the 8-week postoperative hard tissue pathological section score, there was no significant difference between the observation group and the control group in the inflammation and necrosis related score, fibrosis, repair or other related scores and total score (P>0.05). In the dissection at 8 weeks after surgery, no obvious damage to the heart, liver, spleen, lung, kidney, or other organs was found in both groups, nor was there any residual suture material, pancreatic fistula, or pancreatitis, indicating that the suture materials in both groups had been completely absorbed and metabolized, and the incision healed well without causing adverse effects on the visceral organs. 【Conclusion】 PGA and HPMC are effective and safe postoperative suture materials, with good biodegradability, biocompatibility, suture strength, and wound healing quality. They can be comparable to traditional absorbable reinforcement materials in distal pancreatectomy postoperative suturing, thus providing scientific basis for their clinical application.

Objective:To discuss the value of real-time three-dimensional speckle tracking imaging(RT3D-STI) in the evaluation of the left atrial (LA) volume and function in end-stage renal disease (ESRD) patients with different dialysis methods.Methods:Eighty-three ESRD patients who were treated in the Affiliated Hospital of Qingdao University from February to August 2019 were enrolled and divided into non-dialysis group ( n=25), hemodialysis group (HD group, n=31) and peritoneal dialysis group (PD group, n=27). And 30 healthy volunteers were enrolled as control group. Subsequently, the LA volume indexs including LA maximal volume index (LAVImax), LA minimal volume index (LAVImin) and LA presystolic volume index (LAVIpre), the LA function parameters including LA ejection fraction (LAEF), LA passive ejection fraction(LApEF) and LA active ejection fraction (LAaEF) and the LA global strain parameters including global longitudinal strain(GLS), global radial strain(GRS) and global circumferential strain(GCS) were obtained by RT3D-STI. The differences of the parameters among these groups were compared and the correlations between the myocardial strain parameters and dialysis time were analyzed. Results:①The LAVImax, LAVImin and LAVIpre of the non-dialysis group, PD group and HD group were higher than those in the control group, while the LAEF, LApEF, GLS, GRS and GCS were lower than those in the control group(all P<0.05); the LAVImin of the PD group as well as the LAVImin, LAVIpre and LAVImax of HD group were higher than those of non-dialysis group, while the LAEF, LApEF, GLS, GCS of the PD group and the LAEF, LApEF, GLS, GRS, GCS of HD group were lower than those of non-dialysis group (all P<0.05). The LAVImax, LAVImin, LAVIpre of HD group were higher than those of PD group, while the LAEF, LApEF, GLS, GRS and GCS of HD group were lower than those of PD group (all P<0.05). ②The GLS and GCS in PD group were negatively correlated with the dialysis time( r=-0.670, -0.596, all P<0.05), and the GLS, GCS and GRS in HD group were negatively correlated with the dialysis time( r=-0.624, -0.631, -0.551, all P<0.05). Conclusions:RT3D-STI can assess the LA volume and function of ESRD patients with different dialysis methods effectively and can further evaluate the prognosis of patients and guide timely clinical intervention.

OBJECTIVE： To study the mechanism of Cistanche deserticola in the treatment of osteoporosis by network pharmacology. METHODS： The active components of C. deserticola were retrieved and obtained by TCM system platform （TCMSP）. Reverse molecular docking server DRAR-CPI and related databases GeneCards and OMIM were used to screen the target of C. deserticola active ingredients in the treatment of osteoporosis. The “component-target”network of C. deserticola was constructed by Cytoscape software， and the interaction between targets was plotted by String database and Cytoscape software. The combination activity of target and active ingredient was evaluated via molecular docking with Systems Dock WebSite server. GO classification and enrichment analysis and KEGG pathway enrichment analysis were conducted for target genes using DAVID database. RESULTS： Totally 13 active ingredients were screened out from C. deserticola， such as verbascoside， leonurine， geniposidic acid. There were 43 active ingredient-treated potential targets， such as RUNX2， VEGF， IL-6， BGP， TNF. Multiple signaling pathways were involved in target action， such as WNT （Wingless/Integrated）， VEGF， TNF. CONCLUSIONS： This study preliminarily explores and validates the main targets and pathways of C. deserticola in the treatment of osteoporosis， which lay the foundation for further study of its mechanism.

OBJECTIVETo identify the source of infection, route of transmission and risk factors related to a cluster of acute gastroenteritis cases in a university of Guangzhou.

METHODSCases were identified according to the definition. Descriptive epidemiological approaches and case-control study designs were employed in the analysis. All the samples were tested for norovirus by RT-PCR. Positive samples were subjected to both nucleotide sequence and homology analysis.

RESULTSA total of 141 cases related to norovirus gastroenteritis were identified in January 8 to 21, 2013, with the attack rate as 8.5 per thousand (141/16,600). The peak in morbidity was seen on January 8 to 9. No clustering was found in different classes or dormitories. Results from the case-control study revealed that early cases were infected in Restaurant A (OR = 3.46, 95% CI: 1.07-11.16) and the cold shredded chicken set meal (OR = 17.82, 95% CI: 4.46-78.17) served at lunch (OR = 4.34, 95% CI: 1.18 -17.37) on January 7 was under suspicion. A total of 266 samples, including rectal swabs from the patients and kitchen wokers, leftover food and environmental swabs, were collected. Twenty-one samples (collected from 17 persons) were positive for norovirus by RT-PCR. About 29.6% (8/27) of the kitchen workers in the Restaurant A were tested positive for the virus. The pathogen was identified as the new norovirus genotype II.4 variant, termed Sydney 2012. The virus strains isolated from the patients among student and staff and the kitchen workers were 100% identical in their nucleotide sequence.

CONCLUSIONThis was the first reported acute gastroenteritis outbreak caused by the new norovirus genotype II.4 variant, Sydney 2012, which showed that the food was contaminated by the asymptomatic kitchen workers who carried the virus.

Adolescent ; Adult ; Caliciviridae Infections ; epidemiology ; Case-Control Studies ; China ; epidemiology ; Disease Outbreaks ; Female ; Foodborne Diseases ; epidemiology ; virology ; Gastroenteritis ; epidemiology ; virology ; Humans ; Male ; Norovirus

ObjectiveTo observe the effect of Cuscutae Semen total flavonoids combined with Tripterygium wilfordii polyglycoside tablets （TWPT） on ovarian germline stem cells of female physiological mice through neurogenic locus notch homolog （Notch） signaling pathway. MethodSixty female Kunming mice （5 weeks old） were randomly divided into normal group， Tripterygium wilfordii polyglycoside tablets low-， high-dose groups （13.65 mg·kg^-1·d^-1 and 27.3 mg·kg^-1·d^-1， 1 and 2 times clinical equivalent dose）， Cuscutae Semen total flavonoids low- and high-dose groups （150 mg·kg^-1·d^-1 and 300 mg·kg^-1·d^-1）， and combination group （13.65 mg·kg^-1·d^-1 TWPT and 150 mg·kg^-1·d^-1 Cuscutae Semen total flavonoids）， with 10 in each group. After 3 weeks of continuous administration， the uterus/brain and ovarian/brain indexes were calculated， and the pathological changes of ovarian tissue were observed under light microscope. The content of estradiol in serum was determined by enzyme linked immunosorbent assay （ELISA）. Immunofluorescence assay was performed to observe the expressions of germline stem cell markers in ovarian epithelium， including mouse vasa homologue （Mvh）， octamer-binding transcription factor 4 （Oct4）， tyrosine-protein kinase receptor （c-kit）， Nanog， Notch signaling pathway molecules， neurogenic locus notch homolog protein 1 （Notch1）， hes family BHLH transcription factor 1（Hes1）， and jagged canonical Notch ligand 1 （JAG1）. ResultCompared with the normal group， low and high doses of TWPT had no significant effect on the uterus/brain and ovary/brain indexes and the uterus and ovary morphologies of mice， while only the number of atretic follicles was increased （P<0.01）. The expressions of ovarian germline stem cell markers and Notch signaling pathway molecules had a decreasing trend in TWPT low-dose group， while the expressions of Mvh， c-kit， and Nanog were down-regulated （P<0.05， P<0.01） and the expressions of Notch1 and Hes1 were also reduced （P<0.01） in TWPT high-dose group. However， the above indexes were increased in Cuscutae Semen total flavonoids low-dose group （P<0.05， P<0.01）. Compared with the low does of TWPT group， the combination group had a decrease in the increased number of atretic follicles （P<0.01）， an improvement in the down-regulated expressions of Mvh and Nanog （P<0.01）， and an increase in the expressions of Notch1 and Hes1 （P<0.05， P<0.01）. ConclusionOvarian germline stem cells are the source target of the reproductive toxicity of TWPT. Cuscutae Semen total flavonoids participate in the regulation of the germline stem cell pathways to alleviate the reproductive toxicity caused by TWPT， and its mechanism of action may be related to the Notch signaling pathway.

ObjectiveTo study the constituents migrating to blood of Qingyan formula by serum pharmacochemistry， and investigate the binding energy between these constituents and estrogen receptor （ER）， so as to confirm the pharmacodynamic material basis of Qingyan formula in rats. MethodUltra-high performance liquid chromatography-quadrupole electrostatic field-orbital trap high resolution mass spectrometry （UPLC-Q-Orbitrap-MS） was used to determine the constituents migrating to blood of Qingyan formula in rats by comparing the fingerprint differences of 70% ethanol extract of Qingyan formula， 70% ethanol extract of each single drug in this formula， blank serum and serum after administration of 70% ethanol extract of Qingyan formula， according to the retention time， relative molecular weight and the primary and secondary ion fragments provided by MS. Mobile phase was 0.1% formic acid aqueous solution （A）-acetonitrile（B） for gradient elution （0-5 min， 2%-20%B； 5-10 min； 20%-50%B； 10-15 min， 50%-80%B； 15-25 min， 80%-95%B； 25-26 min， 95%-2%B； 26-30 min， 2%B）， the flow rate was 0.3 mL·min^-1 and the injection volume was 5 μL， electrospray ionization was used with detection range of m/z 150-2 000， positive and negative ion scanning modes. Molecular docking technology was used to characterize the binding energy of constituents migrating to blood with ERα and ERβ， and to confirm the material basis of this formula. ResultAfter oral administration of Qingyan formula， 30 components were detected in serum， of which 9 were prototype components and 21 were metabolites. Nine prototype components were identified as monotropein， asperuloside， verbascoside， β-ecdysone， allantoin， deacetyl asperuloside acid， echinacoside， betaine and caffeic acid， 21 metabolites mainly included organic acids， amino acids， cholines and so on. The binding energies of the above 9 prototype components with ERα were -6.7， -8.9， -6.0， -5.7， -5.3， -4.9， -7.3， -3.3， -6.3 kcal·mol^-1 （1 kcal≈4 184 J）， and the binding energies of them with ERβ were -6.6， -7.2， -7.7， 8.0， -7.4， -5.5， -6.9， -3.6， -6.4 kcal·mol^-1， respectively. ConclusionThese nine prototype components into blood are the active ingredients of Qingyan formula that play estrogen-like role in the body， which can provide experimental basis for the formulation of quality standards and subsequent research and development of Qingyan formula.