Objective To investigate the preparation method of hydroxyapatite by amino acids induced hydrothermal technique.Methods The hydroxyapatite nanorods were obtained using alanine and glycine as templates by hydrothermal method.The samples were characterized by X-ray diffraction (XRD),Fourier infrared spectroscopy (FTIR),transmission electron microscopy (TEM).Results The results showed that amino acids induced the formation of hydroxyapatite.Amino acids could affect crystallinity and dispersion of the formed hydroxyapatite.In addition,the substituent content of carbonate ions in hydroxyapatite was reduced by changing the ratio of amino acids.Conclusion Hydroxyapatite with high crystallinity and low carbonate ions can be prepared by hydrothermal method in the presence of amino acids.

In contemporary studies of pulse and of the relationship between sphygmo-diagram and syndrome types or diseases, pulse instrument is usually applied to trace the sphygmo-diagram. A comparatively systemic theory about pulse diagnosis has been formed, and it promotes the pulse researching process. But the mechanism of pulse is complicated and the expressive information of pulse is diversity. So it is difficult to record the complicated information of pulse by applying the instrument. In addition, the simplicity in methods of tracing and analyzing sphygmo-diagram and the lack of criterion for syndrome differentiation make it difficult to study the relationship between the sphygmo-diagram and the syndrome types. It's important to lay stress on clinical applying, to promote communication among researchers, to unify the standards of pulse instrument and syndrome differentiation, and to reinforce the research on the relationship between sphygmo-diagram and the syndrome types. The government's support is also needed to promote multi-science cooperation at the same time.

Objective To study the clinical characteristics and diagnosis of the solid-psendopapillary tumor of pancreas (SPT).Methods The clinical data of 40 SPT from January 1996 to January 2008 were retrospectively analyzed. The average age was (32.9 + 13.6 )years. The average clinical course was (8.6±0.1) months.Clinical symptoms usually included distensible pains and secret anguish in abdomen (60.0%).No jaundice appeared in any case.Results The surgical resection was favorable for the treatment of SPT,which had excellent prognosis.No tumor recurrence were found in those following-up patients. Grossly,the cut surface showed areas of solid and papillary tissue,cystic degeneration,hemorrhage,and necrosis.Pathological features included a combination of solid and cystic components with pseudopapillae formation and degenerative regions without glands.Conclusions SPT has its uniquely clinical and pathological characteristics.Its main diagnosed points are helpful for clinical doctors to make timely diagnosis and reduce the rate of misdiagnosis and mistreatment.

Objective To investigate the profile and antibiotic resistance of bacteria in patients with ascites infection in intensive care unit (ICU) patients in order to provide a reference for rational clinical use of antibiotics. Methods A retrospective analysis was conducted. The bacteria isolated from ascetic fluid patients admitted from January 1st, 2004 to October 31st, 2015 to ICU of the First Affiliated Hospital of Anhui Medical University were identified, and their susceptibility to antibiotics was analyzed. Patients, who were admitted from January 1st, 2004 to December 31st, 2009 were assigned to group A, and patients admitted afterwards were assigned to group B. Results A total of 637 specimens of ascetic fluid were examined, with 185 positive culture (29.0%) during the 12 years, and 203 strains of bacteria were found. Among them 126 strains (62.1%) of gram-negative bacteria (G-), 54 (26.6%) of gram-positive bacteria (G+) and 23 (11.3%) strains of fungi were found. Compared the result of group B with that of group A, the proportion of G- bacteria was increased [71.2% (99/139) vs. 44.2% (27/64)], and that of G+ decreased [17.3% (24/139) vs. 46.9% (30/64)] in group B. The difference was statistically significant (χ2 = 20.34, P = 0.001). The main pathogenic bacteria were G-, and Enterobacteriaceae was the most common pathogenic bacteria in intra-abdominal infection of ICU patients. The isolation rate of Escherichia coli and Klebsiella pneumoniae(35.7%, 10.3%) ranked in the first and third in G- bacteria, respectively. The resistant rate of Escherichia coli against penicillin and third generation cephalosporin were > 95.0% and > 73.3%, and it showed a sensitive rate of 70% to β-lactam/inhibitor, amikacin and minocycline, and a higher sensitivity to carbapenems and tigecycline (11.1%, 0). Forty-eight strains of non-fermentation bacteria were found with a rate of 23.7%. The positive rates of Acinetobacter baumannii in groups A and B were 7.8% (5/64) and 23.7% (33/139), respectively, and they ranked first among non-fermentation bacteria. Twenty strains (62.5%) multidrug-resistant Acinetobacter baumannii were found. Acinetobacter baumannii showed a resistance rate of 84.6% to cefoperazone/sulbactam, 35.3% to minocycline, and 53.3% to tigecycline. Candida albicans was the most commonly isolated fungus in intra-abdominal infections (87.5%). No strains resistant to common antifungal drugs were isolated. Conclusions G- bacteria was the main pathogen in intra-abdominal infection in patients with ascites. Non-fermenters showed an increasing trend of producing infection, and the proportion of multidrug-resistant Acinetobacter baumannii infection increased year by year, and more attention should be taken by attending doctors.

Objective To study the correlation between preoperative dye exclusion test and liver function in patients with primary hepatic carcinoma.Methods This was a cross sectional survey.A total of 192 cases of primary liver cancer patients were recruited from May 2014 to March 2015 at the Second Military Medical University Affiliated Eastern Hepatobiliary Surgery Hospital.Hereinto, 160 cases were male and 32 females, the male to female ratio was 5: 1.The age of the patients ranged from 26 to 72 years old, and the average age was 50.5 years old.ICG 15 minutes retention rate of ICG clearance test was determined by PDD method in 192 cases of primary liver cancer patients.ICGR15 value was stratified into three stages: ICGR15 ＜ 10％ , ICGR1510％-20％ , and ICGR15 ＞ 20％.The ICGR15 stage of patients with different ChildPugh grades was analyzed.The biological liver function indexes of patients were simultaneous detected including TBIL, TBA, TP, ALB, PA, ALT, AST, PT-INR, HA, LN, Ⅲ, Ⅳ, APRI, PLT etc.The correlations of ICGR15 and biological indexes of liver function were analyzed using Spearman nonparametric correlation analysis.Results (1) ICGR15 was positively correlated with Child-Pugh grade (r =0.477, P ＜ 0.01) in the 192 cases of HCC.The hierarchical analysis showed that there were significant differences between ICGR15 and different Child-Pugh grades (P ＜ O.05).(2) Child-Pugh classification and ICGR15 comparison further showed that, ICGR15 increased with Child-Pugh grade.While ICG plasma clearance rate (ICGK) and effective hepatic blood flow (EHBF) reduced (P ＜ 0.05).(3) The correlation analysis between ICGR15 and biological indexes of liver function showed that: ICGR15 was positively correlated with TBIL,TBA, ALT, AST, AFU, GGT, PT-INR, HA, LN, Ⅲ, Ⅳ and APRI index [(AST/ULN) × 100/ PLT (× 109/L)] (r =0.422, 0.389, 0.219, 0.301, 0.219, 0.244, 0.325, 0.652,0.403, 0.523, 0.519, 0.434, P ＜ 0.05);and was negatively correlated with TP, ALB, PA, SOD, WBC, PLT (r =-0.290,-0.532, 0.546, 0.531, 0.256, 0.327, P＜ 0.05).Conclusions ICGR15 as a indicator for liver reserved and dynamic function can comprehensively reflect the liver reserve function is associated with the existing Child-Pugh grades and liver function biochemical indexes.Therefore, ICGR15 could be served as a sensitive index reflecting the preoperative liver reserve function.

Objective To summarize and analyze the pathological characteristics of solid pseudopapillary tumor of pancreas (SPTs).Methods The clinical data of 51 cases of SPTs were retrospectively analyzed.The immunohistochemical localizations of different markers (HSE,SYN,CD_(56),CD_(10),Nestin,Vim,a1-ACT,EMA,AE1/AE3 and CK19) on 39 SPTs were studied.Results Pathological features included a combination of solid and cystic components with pseudopapillae formation and degenerative regions without glands.Among the 39 cases of SPTs,the expression rate of NSE was 97.4%,the expression rate of CD_(56),CD_(10) was 84.6%,the expression rate of Nestin and Vim was 64% and 87%,the expression rate of S100 was 79.5%,the expression rate of a1-ACT and a1-AT was 82.1% and 79.5%,while the expression rate of SYN was 12.8%;however there was low expression and weak positive reaction of EMA,AE1/AE3 and CK19.Conclusions The typical pathological characteristics of SPTs may result from gradual degenerative changes induced anoxemia in some SPT's areas.The heterogeneity of SPTs on different antibody markers showed that the SPTs may be originated from pancreatic embryonic stem cells,and result from immature differentiation of the pluripotential stem cells during pancreatic genesis.

Objective To investigate the quality of life, sexual quality of life and its influencing factors in cervical cancer patients undergoing radiotherapy. Methods Pre-menopausal patients of 87 cases were diagnosed with cervical cancer treated with radiotherapy at Peking Union Medical College Hospital from December 2013 to December 2018 were recruited in this study. The functional assessment of cancer therapy-cervix ( FACT-Cx V4. 0) and the female sexual function index ( FSFI) were evaluated. Demographic and treatment data were collected. The influencing factors were analyzed by multiple linear regression analysis. Results The total score of quality of life was 114( 100-126) , 19( 16-21) for physiology, 21( 18-24) for social/family, 19( 17-21 ) for emotion, 19 ( 14-22 ) for function and 39 ( 34-43 ) for additional attention, respectively. The end time of radiotherapy was the influencing factor of the total score ( P= 0.034 ) , physiology ( P=0) and function ( P=0.008) . Family was the influencing factor of social family dimension ( P=0.010) . The total score of FSFI was 8.0( 5.0-20.5) , 1.8( 1.2-3.0) for sexual desire, 1.5( 0-2.7) for sexual arousal, 0.3( 0-3.6) for vaginal lubrication, 0( 0-3.6) for orgasm, 3.2( 2-4) for satisfaction and 0( 0-3.6) for sexual pain, respectively. The total score was less than 27 in 97%( 84/87) of the patients and had sexual dysfunction. Age was the influencing factor of sexual arousal ( P=0.005) and vaginal lubrication ( P=0.039) . Occupation was the influencing factor of sexual pain ( P=0.004) . Conclusions The quality of life of premenopausal patients with cervical cancer is affected by multiple factors. Radiotherapy-related complications should be actively treated to improve the quality of life and sexual life of patients.

OBJECTIVE: To compare patient survival outcomes between completion hysterectomy and conventional surveillance in locally advanced adenocarcinoma of the cervix after concurrent chemoradiotherapy (CCRT).METHODS: Patients with adenocarcinoma of the cervix after CCRT were identified in a tertiary academic center database from 2004 to 2018. Patients received completion hysterectomy or surveillance after CCRT. We compared the progression-free survival (PFS) and overall survival (OS) between the patients with or without adjuvant hysterectomy. Surgery features, operative complications, and pathologic characteristics were documented. Patient outcomes were also analyzed according to clinicopathologic factors.RESULTS: A total of 78 patients were assigned to completion surgery and 97 to surveillance after CCRT. The PFS was better in the surgery group compared to the CCRT only group, at 3 years the PFS rates were 68.1% and 45.2%, respectively (hazard ratio [HR]=0.46; 95% confidence interval [CI]=0.282–0.749; p=0.002). Adjuvant surgery was also associated with a higher rate of OS (HR=0.361; 95% CI=0.189–0.689; p=0.002), at 3 years, 87.9% and 67%, respectively. Tumor stage, size, lymph-vascular space invasion (LVSI), lymphadenopathy were associated with PFS but not with OS. Hysterectomy specimens revealed 64.1% (50/78) of the patients had pathologic residual tumor. Patients age less than 60, tumor size over 4 cm, stage IIB and persistent residual disease after CCRT were most likely to benefit from hysterectomy. Hysterectomy was associated with a lower rate of locoregional recurrence but did not reach statistical significance (5.13% vs. 13.5%, p=0.067).CONCLUSION: Completion hysterectomy after CCRT was associated with better survival outcome compared with the current standard of care.
Adenocarcinoma ; Cervix Uteri ; Chemoradiotherapy ; Disease-Free Survival ; Female ; Humans ; Hysterectomy ; Lymphatic Diseases ; Neoplasm, Residual ; Recurrence ; Standard of Care ; Uterine Cervical Neoplasms

Objective:To investigate the clinical management value of chitinase 3-like 1 protein(CHI3L1) in hepatocellular carcinoma (HCC) by studying the expression of CHI3L1 in peripheral blood, liver cancer and paired adjacent non-tumor tissues.Methods:Retrospective study. From 2013 to 2017, 405 patients with HCC in Third Affiliated Hospital of Naval Medical University were enrolled into the study. Meanwhile, 112 patients with liver cirrhosis (LC), 114 health subjects were included as disease and health controls. CHI3L1 in peripheral blood was detected by ELISA kit. Tissues array was made by collecting 90 pairs of tumor tissues and matched paracancer tissues, from HCC patients who were conformed by pathology. The expression of CHI3L1 in HCC tissues was analyzed by immunohistochemistry. Differences between independent groups were tested by Mann-Whitney U test or Kruskal Wallis H test, Pearson correlation analysis was used for analyzing the relationship between two subjects, and matched rank sum test was used for cancer tissue and adjacent tissue comparison. Results:The median (quartile) of CHI3L1 protein in LC group, HCC group and NC group was 195.8 (103.3,330.4) μg/L,118.2 (74.9,201.0) μg/L,46.8 (30.7,66.4) μg/L independently. The protein level of CHI3L1 in LC group was significantly higher than that in HCC group and health control group ( Z=5.186,12.928, P<0.001). HCC group was significantly higher than that in health control group ( Z=10.788, P<0.001). The level of CHI3L1 in HCC group was not related to whether liver cirrhosis was accompanied ( Z=-0.286, P=0.775). The level of serum CHI3L1 was positively correlated with noninvasive fibrosis markers (HA, PⅢNP, Ⅳ-C, FIB-4 index) ( r=0.202,0.159,0.299 and 0.221, P<0.05) and negatively correlated with ALB( r=-0.326, P<0.05) while positively correlated with AST and PT( r=0.138, 0.160, P<0.05). Positively correlation was observed between CHI3L1 and tumor size ( r=0.284, P<0.001). CNLC stage [CHI3L1 level in advanced group125.2(81.9,228.5)μg/L was higher than that in early group112.0(70.2,169.2)μg/L ( Z=-2.326, P=0.018)], but no correlation with microvascular invasion( Z=-1.531) and tumor capsule(χ 2=0.818, P>0.05). In 73 cases of HCC tissues, the positive rate of CHI3L1 was 78% (57/73) in cancer tissues and 83%(61/73) in paired adjacent non-tumor tissues. The staining intensity score of paracancer tissue 1.5(1.5,2.5) was higher than that of cancer tissue 1.5(1.5,2.0)( Z=-2.053, P=0.040). Conclusions:The tissue source of CHI3L1 protein in HCC includes cancer tissue and paracancerous tissue. The detection of serum CHI3L1 level is helpful to evaluate tumor load assessment and disease stratification management in HCC.

OBJECTIVE: To compare patient survival outcomes between completion hysterectomy and conventional surveillance in locally advanced adenocarcinoma of the cervix after concurrent chemoradiotherapy (CCRT). METHODS: Patients with adenocarcinoma of the cervix after CCRT were identified in a tertiary academic center database from 2004 to 2018. Patients received completion hysterectomy or surveillance after CCRT. We compared the progression-free survival (PFS) and overall survival (OS) between the patients with or without adjuvant hysterectomy. Surgery features, operative complications, and pathologic characteristics were documented. Patient outcomes were also analyzed according to clinicopathologic factors. RESULTS: A total of 78 patients were assigned to completion surgery and 97 to surveillance after CCRT. The PFS was better in the surgery group compared to the CCRT only group, at 3 years the PFS rates were 68.1% and 45.2%, respectively (hazard ratio [HR]=0.46; 95% confidence interval [CI]=0.282–0.749; p=0.002). Adjuvant surgery was also associated with a higher rate of OS (HR=0.361; 95% CI=0.189–0.689; p=0.002), at 3 years, 87.9% and 67%, respectively. Tumor stage, size, lymph-vascular space invasion (LVSI), lymphadenopathy were associated with PFS but not with OS. Hysterectomy specimens revealed 64.1% (50/78) of the patients had pathologic residual tumor. Patients age less than 60, tumor size over 4 cm, stage IIB and persistent residual disease after CCRT were most likely to benefit from hysterectomy. Hysterectomy was associated with a lower rate of locoregional recurrence but did not reach statistical significance (5.13% vs. 13.5%, p=0.067). CONCLUSION Completion hysterectomy after CCRT was associated with better survival outcome compared with the current standard of care.