OBJECTIVETo explore the clinical effects of diaplastic external fixator on the treatment of unstable fractures of distal radius.

METHODSA clinical data of 60 patients with unstable fractures of distal radius admitted to Wangjing Hospital from August 2005 to September 2009 were retrospectively analyzed with the paired design. According to the paired design, 60 patients were equally divided into two groups (internal fixation group and external fixation group), which were respectively treated with open reduction and steel plate internal fixation (internal fixation group) or closed reduction and external fixation (external fixation group), including 8 males and 52 females, with an average age of 60.27 years ranging from 34 to 85 years. Left side was in 33 cases and right side was in 27 cases. All fractures were closed and caused by hand supporting when falling down. According to AO classification, type A3 was in 22 cases, type B2 was in 4 cases, type B3 was in 2 cases, type C1 was in 20 cases, type C2 was in 8 cases, type C3 was in 4 cases. Palmar flexion, dorsiflexion, radial deviation, ulnar deviation, pronation, supination, grip strength, radial angle, radial length, volar tilt were observed before and after operation.

RESULTSAll the patients were followed up from 12 to 18 months with an average of 15.4 months. The radial length was (4.85 +/- 2.75) mm,volar tilt (14.66 +/- 10.77) degrees, radial angle (7.90 +/- 4.70) degrees in the external fixation group,while those were (4.29 +/- 1.53) mm, (14.39 +/- 5.01) degrees, (6.19 +/- 3.15) degrees in the internal fixation group, but with no statistical significance (P>0.05). Function comparison of internal and external fixation group, P-value of every function is more than 0.05 or equal to 0.05, with no statistical significance except for supination and radial deviation. The functions of wrist joints were evaluated according to Batra scoring system at 1 year after operation. The average radiological scores of external fixation group was 86.27,in which 15 cases were excellent, 11 good, 1 fair,3 poor,while the average functional scores was 94.93, and all the cases were excellent. The average radiological scores of internal fixation group was 91.27, 16 cases were excellent, 12 good, 2 fair, while the average functional scores was 94.23, in which all the cases were excellent.

CONCLUSIONCompared with the open reduction and steel plate fixation, the unstable fractures of distal radius treating by diaplastic external fixator can be achieved a similar result, with no statistical significance.

Adult ; Aged ; Aged, 80 and over ; Case-Control Studies ; External Fixators ; Female ; Fracture Fixation, Internal ; methods ; Humans ; Male ; Middle Aged ; Radius Fractures ; surgery ; Retrospective Studies

OBJECTIVETo explore the mechanism of continuous traction in treating unstable distal radius fracture.

METHODSThirty patients with unstable distal radius fractures were treated by diaplastic external fixator including 4 males and 26 females with an average age of 61 years ranging from 18 to 85 years. According to AO classification, 12 cases were type A3, 3 were type B2, 8 were type C1, 4 were type C2, 3 were type C3. The distance of the processus radial malleolus and ulnar articularis were measured through X-ray examination.

RESULTSThirty patients were followed-up for 6 to 15 months with an average of 11.2 months. The results of distance before treatment measuring in X-ray was (0.55+/-0.22) cm, and the distance after treatment was (1.07+/-0.23) cm. The distance after treatment was higher than the distance before treatment, there were significant difference between them (P<0.01).

CONCLUSIONContinuous traction by diaplastic external fixator can explain by the theory of tendon reinforced bone and ligament restoration, or distraction osteogenesis.

Adolescent ; Adult ; Aged ; Aged, 80 and over ; External Fixators ; utilization ; Female ; Fracture Fixation, Internal ; Fracture Healing ; physiology ; Humans ; Male ; Middle Aged ; Radiography ; Radius Fractures ; diagnostic imaging ; surgery ; Range of Motion, Articular ; physiology ; Recovery of Function ; Traction ; methods ; Treatment Outcome ; X-Rays ; Young Adult

OBJECTIVESTo establish a gemcitabine-resistant pancreatic cancer cell line SW1990/GZ, and to explore the relationship between drug-resistant cell line SW1990/GZ and pancreatic cancer stem cell.

METHODSGemcitabine-resistant pancreatic cancer cell line SW1990/GZ was obtained by treating parental cell line SW1990 in vitro with increasing dosage of gemcitabine in culture medium intermittently for 24 weeks. Stable cultures were obtained which were 77.2-fold increased in resistance relative to parental cells. Gene expressions of ABCB1/MDR1, ABCC1/MRP and ABCG2/BCRP were determined by real-time PCR. Tumorigenic potential was performed by nude mice xenograft transplant experiments. Side population analysis and CD24CD44 positive cells explore were determined by flow cytometry to examine cancer stem cell proportion.

RESULTSGemcitabine-resistant cell line SW1990/GZ underwent obvious morphological and functional changes. Compared with the parental cell line, SW1990/GZ cell was small and turned into round shape. SW1990/GZ had a higher gene expression level of ABCB1/MDR1, ABCC1/MRP and ABCG2/BCRP than SW1990 (P < 0.01). Nude mice xenograft transplant experiments showed that only 1 × 10(5) SW1990/GZ cells were sufficient for tumor formation, whereas an injection of 1 × 10(5) SW1990 cells did not initiate tumors. Flow cytometry analysis showed that SP proportion in SW1990/GZ was (11.0 ± 1.0)%, whereas in parental SW1990 it was (4.6 ± 0.9)%, CD44CD24 positive cells was (8.73 ± 0.81)% in SW1990/GZ, whereas (1.1 ± 0.4)% in SW1990.

CONCLUSIONSGemcitabine-resistant cell line SW1990/GZ has a higher proportion of pancreatic cancer stem cells compared to its parental cell line SW1990. CD44 is mainly responsible for acquired drug resistance, which can be a potential target to overcome acquired drug resistance in pancreatic cancer.

Animals ; Antimetabolites, Antineoplastic ; pharmacology ; Cell Line, Tumor ; Deoxycytidine ; analogs & derivatives ; pharmacology ; Drug Resistance, Neoplasm ; Female ; Humans ; Mice ; Mice, Inbred BALB C ; Mice, Nude ; Neoplastic Stem Cells ; drug effects ; pathology ; Pancreatic Neoplasms ; drug therapy ; metabolism ; pathology ; Xenograft Model Antitumor Assays

OBJECTIVETo evaluate and analyze mechanism of Pizhen for the treatment of pain in patients with knee osteoarthritis.

METHODSEighty-five patients (85 knees) were divided into two groups according to random number table method. Among 35 patients in the experimental group, 6 patients were male and 29 patients were female, 1 patient lost follow-up, the average age was (56.65 +/- 4.89) years, and the patients were treated with Pizhen. Among 50 patients in the control group,there were 6 males and 44 females, the average age was (57.54 +/- 4.91) years, and the patients were treated with intra-articular injection with sodium hyaluronate. The VAS score and the data of algometer from the most obvious tenderness around the knee were used to evaluate the clinical effects.

RESULTSThere were significant differences of scores in the experimental group before and after treatment (P<0.01). There were significant differences of scores in the control group before and after treatment (P<0.01). After treatment, there were no statistical differences of VAS score and the data of algometer between experimental and control groups ( P>0.01). There was negative correlation between VAS score and the data of algometer.

CONCLUSIONThe Pizhen is an effective method to treat pain in patients with knee osteoarthritis by relaxing tendon of soft tissue around pain point of knee joint, and relaxing compress and stimulation of nerves.

Acupuncture Analgesia ; Aged ; Case-Control Studies ; Female ; Humans ; Male ; Middle Aged ; Osteoarthritis, Knee ; physiopathology ; therapy ; Pain Measurement

Tumor suppressor p53 protein can regulate the tran-scription of target genes, to control cell apoptosis, aging and other life activities,but mutant p53 is prone to losing antitumor function, thus promoting tumor development. At present, p53 protein has become one of the hot targets for the treatment of cancer. This article mainly introduces the structure and mechanism of small molecular compounds with restoring activity of mutant p53 as the target.

BACKGROUNDHuman epidermal growth factor 2 (HER2) is one of the most important prediction factors, but only 25% - 30% of breast cancer patients HER2 are positive. It is unknown whether there are other molecular markers that could be used to predict prognosis and recurrence in HER2 negative patients. This study investigated correlations of cyclin A2 and HER2 levels with clinical outcomes in 281 patients with invasive breast cancer in order to identify whether cyclin A2 can serve as a prognostic factor in HER2 negative patients.

METHODSImmunohistochemical staining was used to detect cyclin A2 and HER2 expression in 281 patients. Cyclin A2 and HER2 gene amplifications were analyzed using gene analysis and RT-PCR in 12 patients. Risk and survival estimates were analyzed using Log-rank, Kaplan-Meier, and Cox regression analysis; cyclin A2 and HER2 consistency with survival were analyzed using Kappa analysis.

RESULTSPatients with higher cyclin A2 and HER2 expressions had significantly shorter disease-free survival periods (P = 0.047 and P = 0.05, respectively). Kappa analysis performed that cyclin A2 and HER2 showed a low Kappa index (kappa = 0.37), allowing us to conclude that cyclin A2 and HER2 detect different pathologies. Gene analysis and RT-PCR showed that cyclin A2 was upregulated in patients with early relapse; the average increase was 3.69 - 2.74 fold.

CONCLUSIONSCyclin A2 and HER2 are associated with proliferation and high recurrence, particularly when combined. Cyclin A2 is easily detected by nuclear staining and might be a useful biomarker for recurrence risk in HER2 negative patients.

Adult ; Aged ; Aged, 80 and over ; Breast Neoplasms ; genetics ; metabolism ; Cyclin A2 ; genetics ; metabolism ; Female ; Humans ; Immunohistochemistry ; Middle Aged ; Multivariate Analysis ; Receptor, ErbB-2 ; genetics ; metabolism ; Reverse Transcriptase Polymerase Chain Reaction

BACKGROUND:During the percutaneous vertebroplasty, the optimal dose of bone cement that can bring favorable cement dispersion and remodel the biomechanical balance of the fractured vertebrae remains controversial. OBJECTIVE:To investigate the dispersion degree of small dose of bone cement in vertebroplasty. METHODS: In this experiment, 18 sheep selected with the same condition were randomly divided into three groups (group A, group B, group C), 6 in each group. A model of thoracolumbar vertebral compression fracture (T12, L1, L2) was made in each sheep. The injected volume of bone cement in groups A, B, C was 15％, 20％, 25％ of the average volume of adjacent vertebral bodies, respectively. Postoperative CT images were used to evaluate the bone cement dispersion. Dispersion degree of bone cement among the three groups was compared by the Kruskal-Wallis test. RESULTS AND CONCLUSION:There was no statistical difference in the dispersion degree of bone cement among the three groups, and the excellent and good rate of dispersion was over 80％. To conclude, the optimal dose of bone cement injected into the fractured vertebra is 15％ of the average volume of adjacent vertebral bodies, which can achieve good dispersion degree and restore the biomechanical stability of the vertebral body.

Medical records in the treatment of external-contraction febrile diseases with Chinese patent medicines in Medical Records Integration of Palace in Qing Dynasty were collected and the syndromes of the diseases, and types, categories, and dosage forms of the medicines were summarized to analyze the use of Chinese patent medicines for the external-contraction febrile diseases. The incidence of the diseases is closely related to the constitution, dietary habit, and emotion of patients. Therefore, the diseases were mainly manifested as cold, warm disease in summer, and summerheat-caused affection, and they were also attributed to the internal causes such as dampness, indigestion, phlegm, and stagnated heat. Thus, heat-clearing and summerheat-expelling formulas represented by Yiyuan Powder and Liuyi Powder were most frequently used, followed by the formulas for promoting digestion and removing food stagnation and formulas of ophthalmology and otorhinolaryngology and surgery department. The composition and application of the most common Chinese patent medicines were analyzed, and the medicines which were also recorded in Chinese Pharmacopoeia(2020) were selected for further comparison to provide a reference for the current application of them. In the development of Chinese patent medicines, the influence of the processing on the efficacy should be emphasized and the application value of classical prescriptions should be further explored. It is of great significance for the composition optimization and efficacy improvement of modern Chinese patent medicines to study the compatibility of mineral medicinals in traditional formulas. When it comes to application in clinical settings, the indications, usage, and application modes of the Chinese patent medicines of Qing Dynasty are of reference value for modern application. Moreover, the anti-epidemic policies and anti-epidemic tea drinks in the records can serve as a reference for the prevention and control of pestilence diseases at present.
Humans ; Medicine, Chinese Traditional ; Nonprescription Drugs ; Drugs, Chinese Herbal/therapeutic use* ; Powders ; Medical Records ; China

OBJECTIVESTo investigate the possibilities of an association between the degrees of HBV suppression with nucleoside treatments at week 24 and week 52 in hepatitis B patients and to find a useful predictor for treatment efficacy.

METHODSIn this phase III, double-blind, multicenter trial, we compared the efficacy of telbivudine treatment with lamivudine treatment in 332 Chinese compensated chronic hepatitis B patients. The patients were randomly assigned to a daily 600 mg telbivudine treatment group or daily 100 mg lamivudine group for 24 weeks. They were then categorized into 4 groups according to their serum HBV DNA levels (copies/ml) at week 24: a PCR-undetectable group (< 300 copies/ml); a QL- < 10(3) copies/ml group; a 10(3)-<10(4) copies/ml group; and a > or = 10(4) copies/ml group. The treatments were continued as they previously had been for another 28 weeks and the patients serum HBV DNA levels were examined again.

RESULTSAt week 52, mean reductions of serum HBV DNA were significantly greater in the telbivudine-treated patients than in the lamivudine-treated group (6.2 log10 vs 5.4 log10, t = 3.6, P < 0.01). Viral resistance was twice as common in lamivudine-treated patients compared to those receiving telbivudine. Telbivudine was well-tolerated with an adverse event profile similar to that of lamivudine. The lower the HBV DNA level achieved at week 24, the higher HBV DNA non-detectable by PCR. ALT normalization and HBeAg seroconversion achieved at week 52, and viral resistance at week 48 decreased parallel to the degree of HBV DNA inhibition.

CONCLUSIONHBV DNA PCR-undetectable at week 24 in nucleoside-treated hepatitis B patients suggests a better efficacy at week 52 and lower viral resistance at week 48. The degree of suppression of HBV at week 24 may be used as a predictor of 1-year outcome.

Adolescent ; Adult ; Aged ; Antiviral Agents ; therapeutic use ; DNA, Viral ; blood ; Double-Blind Method ; Female ; Hepatitis B, Chronic ; drug therapy ; Humans ; Lamivudine ; therapeutic use ; Male ; Middle Aged ; Nucleosides ; therapeutic use ; Pyrimidinones ; therapeutic use ; Thymidine ; analogs & derivatives ; Treatment Outcome ; Young Adult

ObjectiveTo investigate the therapeutic effect and the possible mechanism of Mankuining decoction on dextran sulfate sodium （DSS）-induced ulcerative colitis （UC） in mice. MethodA total of 90 male SPF C57BL/6 mice were randomly classified into normal group， model group， mesalazine group （0.266 g·kg^-1）， and high-， and medium-， low-dose （20， 10， 5 g·kg^-1） Mankuining decoction groups， with 15 rats in each group. Mice， except the normal group， drank 3% DSS solution for 7 days to induce UC， and administration （ig） started on the day of modeling. The model group and the normal group were given equivalent amount of 0.9% normal saline once a day for 7 days. The general conditions of mice were recorded every day and the disease activity index （DAI） was calculated. On the 8^th day， mice were killed by cervical dislocation. All the colons and feces were collected. The length of colon was recorded， and the histopathological changes of colon were observed based on hematoxylin-eosin （HE） staining. The content of inflammatory factors in colon was detected by enzyme-linked immunosorbent assay （ELISA）， and the changes of intestinal flora in mouse feces were determined based on 16SrRNA sequencing. ResultCompared with the normal group， the model group had severe colon damage， reduction in colon length （P<0.01）， increase in DAI （P<0.01）， decrease in interleukin-10 （IL-10） and transforming growth factor-β₁ （TGF-β₁） in colon（P<0.01）， rise of interleukin-1β （IL-1β）， interleukin-6 （IL-6）， interleukin-17α （IL-17α）， and tumor necrosis factor-α （TNF-α） in colon （P<0.05， P<0.01）， and decrease in abundance and diversity of intestinal flora. Compared with the model group， mesalazine and high-， medium-， low-dose Mankuining decoction alleviated the colon injury， recovered the length of colon （P<0.01）， decreased DAI （P<0.01）， increased IL-10 and TGF-β₁ in colon （P<0.01）， and decreased IL-1β， IL-6， IL-17α， and TNF-α in colon （P<0.01）. Moreover， they raised the abundance and diversity of intestinal flora compared with the model group， as manifested by the increase in the abundance of Firmicutes， Akkermansia， Dubosiella， and Blautia and the decrease in the abundance of Bacteroidetes， Muribaculaceae， Clostridia_UCG-014， and Alistipes. ConclusionMankuining decoction has definite effect in treating UC mice， and the effect is positively correlated with the concentration. In addition， different concentration has different influence on the structure of flora. The mechanism is the likelihood that it alleviates the disorder of intestinal flora to restore intestinal immune balance and further promote the recovery of colonic mucosa.