China ; History, 20th Century ; History, 21st Century ; Pathology ; education ; history

Agouti Signaling Protein ; Animals ; Central Nervous System ; abnormalities ; metabolism ; pathology ; Energy Metabolism ; Hair Color ; genetics ; physiology ; Humans ; Intercellular Signaling Peptides and Proteins ; metabolism ; Membrane Proteins ; genetics ; metabolism ; physiology ; Mutation ; Obesity ; genetics ; metabolism

Objective　To conduct preliminary research on the prevalence and genotyping of urogenital Chlamydia trachomatis (CT) infection in sexually transmitted disease (STD) clinics in Hainan Province, to understand the epidemiological characteristics and genotype features of the population infected with urogenital CT, and to provide evidence for the formulation of scientific prevention strategies and measures. Methods　From 2018 to 2022, a total of 5 551 male urethral swabs and female cervical swabs were collected for detection of CT infection by real-time fluorescent quantitative polymerase chain reaction (RT-PCR). The OMPL gene was amplified from the DNA of some CT positive individuals by nested PCR, and the positive results were sequenced. Sequencing results were uploaded to BLAST website to find sequence similarity and construct a phylogenetic tree to determine the genotype. Results　Out of the 5 551 tested patients, 846 were positive for Chlamydia trachomatis infection, with a positivity rate of 15.2%, the positive detection rate of CT-DNA was 18.6% in male and 13.4% in female, the positive detection rate of male was higher than that of female. There were statistically significant differences in the CT-DNA positivite detection rate among different age groups (P<0.05), and the highest positivite rate CT-DNA was 58.0% in 20-<30 years old, while it was the lowest, at 1.0%, in those over 50; there were also significant differences in CT-DNA positivity detection rate between seasons (P<0.05), with the highest being 36.4% in the summer and the lowest at 9.6% in the winter. Genotyping of the CT-OMPL gene VS1-VS2 nucleotide sequence in some samples from the Hainan region identified six genotypes, including types D, E, G, F, J, and K, with type F being the main prevalent dominant type. Conclusions　CT infection in Hainan is associated with gender, age, and season, and the genotypes are diversified. It is necessary to further strengthen the screening of CT infection in the reproductive tract of men and women of childbearing age in the future STD prevention and treatment work to improve the fertility rate.

Objective To investigate the effectiveness of ilioischial plating through modified Stoppa and iliac fossa approaches for complex acetabular fractures. Methods A consecutive series of 40 patients with complex acetabular fracture were treated operatively from January 2014 to February 2015. Of them, 20 were treated through modified Stoppa plus iliac fossa approaches as an experimental group ( including 12 males and 8 females with a mean age of 46. 8 ± 10. 3 years ) . The anterior column was stabilized with a recon-struction plate for the iliac wing along the iliopectineal line to the pubis in all cases. The posterior column was fixed with a newly developed ilioischial plate running from the ilium to the ischial ramus. The other 20 patients ( 10 males and 10 females with a mean age of 45. 6 ± 11. 7 years ) served as a control group, treated with a reconstruction plate for the conventional posterior column fixation through the Kocher-Langenbeck approach. The 2 groups were compared in terms of operative time, intraoperative blood loss, reduction and functional recovery of the hip. Results The 40 patients obtained an average follow-up of 18 months ( from 8 to 24 months ) . The experimental group reported significantly shorter operation time ( 2. 1 ± 0. 7 hours ) and signifi-cantly less intraoperative bleeding ( 320. 8 ± 100. 4 mL ) than the control group ( 2. 9 ± 0. 6 hours and 621. 6 ± 118. 7 mL, respectively ) ( P <0. 05 ) . According to modified Matta's criteria for reduction, the experimental group had 15 excellent, 3 good, one fair and one poor cases ( giving an excellent to good rate of 90％) while the control group had 17 excellent, one good, one fair and one poor cases ( giving an excellent to good rate of 90％) . According to the modified Merle d'Aubigné and Postel scoring for the functional recovery of the af-fected hip at the final follow-ups, the experimental group had 14 excellent, 3 good, 2 fair and one poor cases ( giving an excellent to good rate of 85％) while the control group had 12 excellent, 4 good, 3 fair and one poor cases (giving an excellent to good rate of 80％). There were no significant differences between the 2 groups in the above comparisons ( P> 0. 05 ) . There were no significant differences in the MOS item short form health survey score and postoperative complication rate between the experimental group and the control group. Conclu-sion Ilioischial plating through modified Stoppa and iliac fossa approaches has advantages of reliable fixa-tion, limited invasion, less intraoperative blood loss and fewer complications for complex acetabular fractures.

A reliable method for simultaneous determinition of eleven representative components (neochlorogenic acid, chlorogenic acid, cryptochlorogenic acid, isochlorogenic acid B, isochlorogenic acid A, isochlorogenic acid C, shanzhiside, geniposidic acid, genipin-1-β-D-gentiobioside, geniposide and secoxyloganin) in combination of chromatographic fingerpint analysis for Reduning injection was developed by ultra high-performance liquid chromatography (UPLC). The method was performed on an Agilent ZORBAX SB-C18 anlytical column (3. 0 mm x 100 mm, 1. 8 µm) with a guard column of Agilent UPLC Guard ZORBAX SB-C18 (3.0 mm x 5 mm) at the column temperature of 30 °C. The gradient mobile phase consisted of acetonitrile (A)-0. 1% phosphoric acid (B) with a flow rate of 0. 4 mL . min-1. The injection volumn was 2 µL. The detection wavelengths were set at 324 nm and 238 nm for quantit tive analysis and 225 nm for fingerpint chromatography. Neochlorogenic acid, chlorogenic acid, cryptochlorogenic acid, isochlorogenic acid B, isochlorogenic acid A, isochlorogenic acid C, shanzhiside, geniposidic acid, genipin-1-β-D-gentiobioside, geniposide and secoxyloganin were baseline seperated with good linearity relationships (r >0. 999) between concentration and peak areas over the linear ranges. The average recoverys of the investigated compounds were 103.5%, 100. 2%, 103. 3%, 102. 8%, 101. 3%, 102. 8%, 97. 36%, 99. 62%, 98. 16%, 102. 8%, 99. 27%, respectively. Reduning injection of forty-five batches was analyzed by UPLC finge print chromatography. Thirty batches were selected to generate the reference fringerprint chromatography with fourteen common peaks. The similarity values between the reference fringerprint chromatography and the remaining fifteen batches were higher than 0. 99. The developed method was fast, accurate and sensitive. It could be used as a reference for the quality control of multiple components determination and fingerprint chromatography for Reduning injection in future.
Chlorogenic Acid ; chemistry ; isolation & purification ; standards ; Chromatography, High Pressure Liquid ; methods ; Drugs, Chinese Herbal ; chemistry ; isolation & purification ; standards ; Glucosides ; chemistry ; isolation & purification ; standards ; Iridoids ; chemistry ; isolation & purification ; standards ; Quality Control ; Reference Standards ; Reproducibility of Results ; Sensitivity and Specificity ; Time Factors

Quantitative models were established to analyze the content of chlorogenic acid and soluble solid content in the liquid-liquid extraction of Reduning injection by near-infrared (NIR) spectroscopy. Seven batches of extraction solution from the liquid-liquid extraction of Lonicerae Japonicae Flos and Artemisiae Annuae Herba were collected and NIR off-line spectra were acquired. The content of chlorogenic acid and soluble solid content were determined by the reference methods. The partial least square (PLS) and artificial neural networks (ANN) were used to build models to predict the content of chlorogenic acid and soluble solid content in the unknown samples. For PLS models, the R2 of calibration set were 0.9872, 0.9812, RMSEC were 0.1533, 0.7943, the R2 of prediction set were 0.9837, 0.9733, RMSEP were 0.2464, 1.2594, RSEP were 3.25%, 3.31%, for chlorogenic acid and soluble solid content, respectively. For ANN models, the R2 of calibration set were 0.9903, 0.9882, RMSEC were 0.0974, 0.4543, the R2 of prediction set were 0.9868, 0.9699, RMSEP were 0.1920, 0.9427, RSEP were 2.61%, 2.75%, for chlorogenic acid and soluble solid content, respectively. Both the RSEP values of chlorogenic acid and soluble solid content were lower than 6%, which can satisfy the quality control standard in the traditional Chinese medicine production process. The RSEP values of ANN models were lower than PLS models, which indicated the ANN models had better predictive performance for chlorogenic acid and soluble solid content. The established method can rapidly measure the content of chlorogenic acid and soluble solid content. The method is simple, accurate anc reliable, thus can be used for quality control of the liquid-liquid extraction of Reduning injection.
Chlorogenic Acid ; analysis ; Drugs, Chinese Herbal ; analysis ; Injections ; Least-Squares Analysis ; Liquid-Liquid Extraction ; standards ; Neural Networks (Computer) ; Quality Control ; Spectroscopy, Near-Infrared ; methods

Objective To investigate the suitable treatment of post operative anastomotic recurrence after anterior resection of rectal cancer and analyze the relationship between different kinds of therapy with prognosis. Methods The clinical data of 41 cases of local recurrent rectal cancer after anterior resection admitted in our hospital from 1999 to 2009 were analyzed retrospectively. The median survival time and survival rate were calculated by Life Tables method. The influence of different kinds of treatment to prognosis was evaluated by Kaplan-Meier method and the variability was analyzed by Log-rank method. P <0.01 means statistical significance. Results Thirty-three (80.5 %) of 41 patients were recurrent in the first 3 years and the median survival time was 23 months. Seventeen (41.5 %) of 41 patients underwent radical R0 resection. The median survival time of radical resection patients and non-radical resection ones were 49 months and 18 months, respectively, and the difference was significant (χ2=12.245, P=0.000). Thirty-one patients with radiotherapy and/or chemotherapy showed a statistically longer median survival time than the other 10 patients without these adjuvant treatment (39 months and 9 months, respectively) (χ2=17.533, P =0.000). Conclusion Most post operative anastomotic recurrent of rectal cancer cases occurs in the first 3 years after primary surgery. Radical resection, radiotherapy and chemotherapy can improve the prognosis.

OBJECTIVETo establish a rapid quantitative analysis method for the content of chlorogenic acid and solid content in the extraction liquid concentration process during the production of Reduning injection by using the near-infrared (NIR) spectroscopy, in order to reflect the concentration state in a real-time manner and really realize the quality control of concentrating process of the extraction and concentration process.

METHODThe samples during the Jinqing extraction liquid concentration process were collected. After the removal of abnormal samples, the spectra pretreatment and the wave band selection, the quantitative calibration model between NIR spectra and chlorogenic acid HPLC analytical value and solid content was established by using PLS algorithm, and unknown samples were predicted.

RESULTThe correlation coefficients between the chlorogenic acid content and the solid content were respectively 0.992 1 and 0.994 0, and the correlation coefficients of the verification model were respectively 0.994 4 and 0.998 4, with the root mean square error of calibration (RMSEC) of 0.814 6 and 2.656 1 and the root mean square error of prediction (RMSEP) of 0.704 6 and 1.876 7 respectively, and the relative standard errors of predictions (RSEP) were 6.01% and 2.93% respectively.

CONCLUSIONThe method is simple, rapid, nondestructive, accurate and reliable, thus could be adopted for the fast monitoring of the chlorogenic acid content and the solid content during the concentration process of Reduning injection extraction liquid.

Drugs, Chinese Herbal ; chemistry ; isolation & purification ; Quality Control ; Spectroscopy, Near-Infrared ; methods

Adult ; Female ; Humans ; Kidney Glomerulus ; metabolism ; pathology ; Lipoproteins ; metabolism ; Male ; Nephrosis, Lipoid ; metabolism ; pathology

OBJECTIVETo investigate the diagnostic value of magnetic resonance diffusion-weighted imaging (DWI) technique in assessing the disease activity and liver fibrosis of chronic viral hepatitis.

METHODSA total of 49 patients with chronic viral hepatitis who received liver biopsy and 10 healthy volunteers were included in this study. All of them underwent DWI on a 3.0 T magnetic resonance imaging system. When the gradient factor b value was set at 100, 200, 400, 600, and 800 s/mm2, the apparent diffusion coefficient (ADC) of the liver was measured respectively. Biopsy specimens were scored for necroinflammation and liver fibrosis according to the Knodell histological activity index.

RESULTSThe ADC values of the right lobe in both controls and patients were lower than those of the left lobe. When the b value was set at 400, 600, and 800 s/mm2, the differences of the ADC values between the fibrosis group (n = 36) and the non-fibrosis group (n = 23, including 10 cases of normal subjects) were statistically significant (P < 0.01). When the b value was set at 800 s/mm2, the ADC values among the different degrees of necroinflammation and grades of liver fibrosis were also significantly different (P < 0.05, P < 0.01).

CONCLUSIONDWI is a valuable method for in vivo and noninvasive assessment of the disease activity and liver fibrosis of chronic viral hepatitis.

Adolescent ; Adult ; Case-Control Studies ; Diffusion Magnetic Resonance Imaging ; methods ; Female ; Hepatitis B, Chronic ; complications ; pathology ; Hepatitis C, Chronic ; complications ; pathology ; Humans ; Liver Cirrhosis ; diagnosis ; etiology ; pathology ; Male ; Middle Aged ; Young Adult