Efficacy and prognostic analysis of orthopedic surgery in patients with newly diagnosed multiple myeloma / 中华内科杂志

Objective: To evaluate the efficacy and prognosis of orthopedic surgical resection surgery in patients with newly diagnosed multiple myeloma (NDMM). Methods: This retrospective cohort study collected clinical data of patients with NDMM who underwent surgery due to spinal cord compression or pathological long-bone fractures at the Peking Union Medical College Hospital from 1 January 2003 to 31 December 2021. Patients who received biopsy or vertebroplasty/kyphoplasty were excluded and patients with the same degree of bone disease and who did not undergo any surgical intervention were selected as controls. Visual analogue scale (VAS) and physical status (ECOG) scores, progression-free survival (PFS), and overall survival (OS) were compared. Statistical analysis included the χ2-test, t-test, and Kaplan-Meier methods. Results: Baseline data were compared between the surgical group (n=40 with 43 interventions) and the non-surgical group (n=80), and included sex, age, paraprotein type, International Staging System (ISS), number of lytic lesions, cytogenetic abnormalities, first-line treatment, and the proportion of patients receiving autologous stem cell transplantation (ASCT) (all P>0.05). Serum M protein levels in the surgical group were significantly lower than those of the non-surgical group [(21.95±16.44) g/L vs. (36.18±20.85) g/L, P=0.005]. The surgical lesions involved the axial skeleton (79.1%, 34/43) or the extremities (20.9%, 9/43). VAS and ECOG scores improved significantly after surgery (VAS: 2.30±0.80 vs. 6.60±1.50, P<0.001; ECOG: 2.09±0.59 vs. 3.09±0.73, P<0.001). The median follow-up time was 51 months. Kaplan-Meier survival analysis suggested that the median PFS (25 vs. 29 months) and OS (46 vs. 60 months) were comparable between the surgical and non-surgical intervention groups (both P>0.05). Subgroup analysis showed that among patients with ISS Ⅰ or those who had received ASCT, PFS in the surgical group was similar to that of the non-surgical intervention group (both P>0.05), while OS was worse (P=0.005, 0.017). Patients with ISS Ⅱ/Ⅲ scores or without ASCT had similar PFS and OS between the surgical and non-surgical intervention groups (all P>0.05). Cox multivariate analysis suggested that ISS and ASCT were independent prognostic factors for OS (ISS: HR=0.42, 95%CI 0.19-0.93, P=0.031; ASCT: HR=0.41, 95%CI 0.18-0.97, P=0.041), while orthopedic surgery did not influence survival (P=0.233). Conclusion: For patients with NDMM, orthopedic surgical resection decreased bone-related complications and improved quality of life, but did not affect survival.

Association Between Constipation and a Reduction in Lower Limb Muscle Strength in Preoperative Patients with Thoracic Spinal Tumors / 中国医学科学杂志(英文版)

Objective To investigate the clinical symptoms experienced by patients with thoracic spinal tumors and verify the associated symptoms that are predictive of a decline in muscle strength in the lower limbs. Methods A single-center, retrospective cross-sectional study was conducted on in-patients diagnosed with epidural thoracic spinal tumors between January 2011 and May 2021. The study involved a review of electronic medical records and radiographs and the collection of clinical data. The differences in clinical manifestations between patients with constipation and those without constipation were analyzed. Binary logistic regression analyses were performed to identify risk factors associated with a decline in muscle strength in the lower limbs.Results A total of 227 patients were enrolled, including 131 patients with constipation and 96 without constipation. The constipation group had a significantly higher proportion of patients who experienced difficulty walking or paralysis compared to those without constipation prior to surgery (83.2% vs. 17.7%, χ2 = 99.035,P < 0.001). Constipation (OR = 9.522, 95%CI: 4.150-21.849, P < 0.001) and urinary retention (OR = 14.490, 95%CI: 4.543-46.213, P < 0.001) were independent risk factors for muscle strength decline in the lower limbs. Conclusions The study observed that patients with thoracic spinal tumors who experienced constipation symptoms had a higher incidence of lower limb weakness. Moreover, the analysis revealed that constipation and urinary retention were independent risk factors associated with a preoperative decline in muscle strength of lower limbs.

Effects of prenatal nicotine exposure on enamel formation of offspring mice / 中华口腔医学杂志

Objective: To investigate the effects of nicotine on the morphology, structure of offspring's dental germ, enamel organ and other dental tissues and the further potential epigenetic mechanisms by establishing prenatal nicotine exposure mouse model. Methods: Ten C57BL/6 pregnant mice were randomly divided into control group (physiological saline subcutaneous injection) and prenatal nicotine exposure (PNE) group (nicotine subcutaneous injection) by using a random number table. Postnatal day 0 (P0), postnatal day 14 (P14) and postnatal day 25 (P25) offspring mice were collected for subsequent experiments. The offspring mice were divided into offspring control group and offspring PNE group according to the maternal group respectively. Weights of P0 and P25 offspring mice were recorded. Micro-CT, scanning electron microscope (SEM) and Vickers hardness test were performed to analyze the related parameters of hard tissues including alveolar bones and mandibular incisors. Total RNAs were extracted from mandible tissues and the third generation of dental epithelial stem cells (DESC) in P25 mice. The relative expression levels of osteogenic and ameloblastic differentiation related genes were measured by real-time quantitative PCR (RT-qPCR). Immunohistochemical stainings of paraffin sections were then performed to observe the distribution and expression level of proliferating cell nuclear antigen (Pcna), amelogenin (Amelx), histone H3 trimethylated at lysine 27 (H3K27me3) and enhancer of zeste homolog 2 (Ezh2). Cell counting kit-8 (CCK-8) assays were used to detect the cell viabilities of DESCs after administrations of different concentrations of nicotine (0.01, 0.1, 1 mmol/L) and GSK126 (an inhibitor of histone methyltransferase Ezh2). Results: Compared with the control group, pregnant mice in PNE group were more likely to have adverse pregnancy outcomes, such as significantly lower offspring body weight [P0: offspring control (1.20±0.04) g, offspring PNE (0.99±0.02) g, P<0.001; P25: offspring control (15.26±1.70) g, offspring PNE (9.65±1.32) g, P<0.001] and increased stillbirths rate [offspring control (0), offspring PNE (46.40±9.30) %, P<0.001]. At P14 and P25, the distance parameters between the enamel mineralized deposits of mandibular incisors and the mesial surface of the first molar in offspring PNE group [P14: (-1 349±45) μm; P25: (-1 192±147) μm] was significantly decreased compared with the control group [P14: (-506±380) μm, P25: (504±198) μm] (P<0.05, P<0.001). The enamel column and enamel column stroma of incisors in offspring PNE group were blurred, arranged loosely and disorderly than those in the control group, while the microhardness of incisor enamel in offspring PNE group [(245.7±18.4) MPa] was significantly lower compared to the control group [(371.9±28.7) MPa] (P<0.001). HE staining showed disordered pre-ameloblast (Pre-Am) arrangement and delayed mineralization deposition point in offspring PNE group compared with the control group, while the length of transit-amplifying cell (TA) and Pre-Am region were prolonged as well. Immunohistochemical staining results displayed that the overall Pcna (P<0.05), H3K27me3 (P<0.01), Ezh2 (P<0.01) expression of labial cervical loop (LaCL) in PNE group were increased, while the positive signal of Amelx in ameloblast cytoplasm was impaired. In vitro, the addition of 1 mmol/L nicotine could significantly upregulate the expression level of Pcna (P<0.01) and downregulate the expression levels of B lymphoma Mo-MLV insertion region 1 (P<0.05), leucine rich repeats and immunoglobulin like domains 1 (P<0.05), Amelx (P<0.01). In addition, 1 mmol/L nicotine could also significantly enhance the proliferation activity of DESCs (P<0.001). Addition of 10 μmol/L GSK126, could rescue the proliferation activation effect of 1 mmol/L nicotine on DESCs. Conclusions: PNE may delay the process of enamel formation and lineage differentiation, leading to the abnormal proliferation of DESCs and changes of epigenetic modification state in H3K27me3, which affect the development of enamel in offspring mice,suggesting PNE might be one of risk environmental factor for tooth development.

Expression of CD24 gene in human malignant pleural mesothelioma and its relationship with prognosis / 中华劳动卫生职业病杂志

Objective: To investigate the expression of CD24 gene in human malignant pleural mesothelioma (MPM) cells and tissues, and evaluate its relationship with clinicopathological characteristics and clinical prognosis of MPM patients. Methods: In February 2021, UALCAN database was used to analyze the correlation between CD24 gene expression and clinicopathological characteristics in 87 cases of MPM patients. The TIMER 2.0 platform was used to explore the relationship between the expression of CD24 in MPM and tumor immune infiltrating cells. cBioportal online tool was used to analyze the correlation between CD24 and MPM tumor marker gene expression. RT-qPCR was used to analyze the expressions of CD24 gene in human normal pleural mesothelial cell lines LP9 and MPM cell lines NCI-H28 (epithelial type), NCI-H2052 (sarcoma type), and NCI-H2452 (biphasic mixed type). RT-qPCR was performed to detect the expressions of CD24 gene in 18 cases of MPM tissues and matched normal pleural tissues. The expression difference of CD24 protein in normal mesothelial tissue and MPM tissue was analyzed by immunohistochemistry. A Kaplan-Meier model was constructed to explore the influence of CD24 gene expression on the prognosis of MPM patients, and Cox regression analysis of prognostic factors in MPM patients was performed. Results: The CD24 gene expression without TP53 mutation MPM patients was significantly higher than that of patients in TP53 mutation (P<0.05). The expression of CD24 gene in MPM was positively correlated with B cells (r(s)=0.37, P<0.001). The expression of CD24 gene had a positive correlation with the expressions of thrombospondin 2 (THBS2) (r(s)=0.26, P<0.05), and had a negative correlation with the expression of epidermal growth factor containing fibulin like extracellular matrix protein 1 (EFEMP1), mesothelin (MSLN) and calbindin 2 (CALB2) (r(s)=-0.31, -0.52, -0.43, P<0.05). RT-qPCR showed that the expression level of CD24 gene in MPM cells (NCI-H28, NCI-H2052 and NCI-H2452) was significantly higher than that in normal pleural mesothelial LP9 cells. The expression level of CD24 gene in MPM tissues was significantly higher than that in matched normal pleural tissues (P<0.05). Immunohistochemistry showed that the expressions of CD24 protein in epithelial and sarcoma MPM tissues were higher than those of matched normal pleural tissues. Compared with low expression of CD24 gene, MPM patients with high expression of CD24 gene had lower overall survival (HR=2.100, 95%CI: 1.336-3.424, P<0.05) and disease-free survival (HR=1.800, 95%CI: 1.026-2.625, P<0.05). Cox multivariate analysis showed that compared with the biphasic mixed type, the epithelial type was a protective factor for the prognosis of MPM patients (HR=0.321, 95%CI: 0.172-0.623, P<0.001). Compared with low expression of CD24 gene, high expression of CD24 gene was an independent risk factor for the prognosis of MPM patients (HR=2.412, 95%CI: 1.291-4.492, P=0.006) . Conclusion: CD24 gene and protein are highly expressed in MPM tissues, and the high expression of CD24 gene suggests poor prognosis in MPM patients.

Diquafossol sodium combined with Qingrun Yangmu oral liquid for the treatment of dry eye after cataract operation / 国际眼科杂志(Guoji Yanke Zazhi)

AIM: To investigate the clinical efficacy of diquafosol sodium(DQS)eye drops combined with Qingrun Yangmu oral liquid in the treatment of dry eye after phacoemulsification and intraocular lens implantation.METHODS:A total of 57 patients(65 eyes)with dry eye after cataract surgery, who were admitted to the ophthalmology department of our hospital from September 2020 to January 2021, were selected as the research objects. They were divided into a control group(28 cases, 32 eyes, treated with 3% DQS eye drops)and an observation group(29 cases, 33 eyes, treated with 3% DQS eye drops combined with the Qingrun Yangmu oral liquid)based on a random number table method. Indicators, such as ocular surface disease index(OSDI), non-invasive tear film break-up time(NIBUT), Schirmer I test(SIt), corneal fluorescein sodium staining(CFS), and TCM symptom score, were compared and analyzed between the two groups 1d before, 1wk after(before treatment), and 1mo after(after treatment)surgery.RESULTS:The total effective rates of the observation group and the control group after treatment were 88% and 75%, respectively. The OSDI, NIBUT and SIt of the two groups after treatment showed significant improvement compared to those before treatment(P&#x003C;0.05). The NIBUT, SIt, CFS, and TCM symptom scores of the observation group after treatment were better than those of the control group(P&#x003C;0.05). No adverse reactions were observed in both groups.CONCLUSION:Combined use of DQS eye drops and the Qingrun Yangmu oral liquid can improve symptoms and clinical indicators of dry eye after cataract surgery, providing a new treatment method for ocular surface management of dry eye during the perioperative period of cataract surgery.

Application of aptamers in the detection of key inflammatory cytokines / 中华检验医学杂志

Pro-inflammatory cytokines selectively induce specific signals to regulate host responses. Since the immunological imbalance caused by abnormal release of cytokines is involved in the development of many diseases, cytokine-specific detections are of great clinical significance for disease diagnosis and efficacy monitoring. Aptamers are single-stranded nucleic acid sequences which can bind to the target with high selectivity and affinity. It has attracted much attention in the development of novel aptamers-based methods for the detection of specific biomarkers of inflammatory diseases. This paper reviewed recent advances in electrochemical and optical aptasensors for the detection of tumor necrosis factor-α, interleukin-6, transforming growth factor-β, interferon-γ and interleukin-8. The findings offered valuable insights into the clinical application potential and challenges of nucleic acid aptamers in the detection of key inflammatory cytokines, providing a meaningful reference for the development of aptamer-based cytokines sensitive detection point-of-care testing equipment and novel diagnostic strategies for inflammatory disorders.

Association between metabolically healthy obesity and incident risk of stroke in adult aged over 40 from rural Henan province / 中华预防医学杂志

Objective: To investigate the association between metabolically healthy obesity and the incident risk of stroke in people aged ≥40 years from rural areas of Henan Province. Methods: During 2007 to 2008, 20 194 residents aged ≥18 years were selected for baseline examination by random cluster sampling and 17 265 participants were followed up during 2013 to 2014. According to the aim of current study, a total of 11 864 eligible subjects were included in this post-hoc analysis. Depending on body mass index and metabolic status, subjects were divided into four groups: metabolically healthy normal weight, metabolically healthy obesity, metabolically abnormal normal weight and metabolically abnormal obesity. Multivariate logistic regression model was used to analyze the relationship between metabolically healthy obesity and the risk of stroke. Results: The median (Q1, Q3) age of study participants was 54(46, 61) years, and 4 526 participants were men. During the mean follow-up of 6 years, the cumulative incidence of stroke was 7.16%. The incidence of stroke in metabolically healthy normal weight, metabolically healthy obesity, metabolically abnormal normal weight, and metabolically abnormal obesity were 3.73%, 4.61%, 8.99% and 9.38%, respectively (χ²=117.458, P<0.001). After adjusting possible confounding factors, compared with metabolically healthy normal weight, the risk of stroke was significantly increased in the metabolically healthy obesity group, metabolically abnormal normal weight group and metabolically abnormal obesity group with the odds ratio (OR) and 95% confidence interval (CI) of 1.52(1.10-2.12), 2.11(1.61-2.77) and 2.78(2.18-3.55), respectively. Stratified analysis showed that the risk of stroke was significantly higher in metabolically healthy obesity people aged 40-59 years compared with metabolically healthy normal weight group (OR=2.12, 95%CI: 1.36-3.30). Conclusion: Metabolically healthy obesity, metabolically abnormal normal weight and metabolically abnormal obesity are positively associated with the risk of stroke.

A new polycyclic polyprenylated acylphloroglucinols from Hypericum lagarocladum N. Robson / 药学学报

Silica gel column chromatography, reversed phase C18 column chromatography, Sephadex LH-20 gel column chromatography, high performance liquid chromatography and medium performance semi preparative liquid chromatography were performed to separate and purify the chemical constituents of Hypericum lagarocladum N. Robson. Spectroscopic methods such as MS and NMR combined with physicochemical properties were applied in identifying the structures of the isolated compounds. A total of 11 compounds were isolated and identified as hyperlagarone A (1), hyperpatulone E (2), hyperbeanol G (3), uralione D (4), tomoeone F (5), pyramidatone A (6), tomoeone A (7), tomoeone B (8), hyperbeanol C (9), hyperbeanol A (10), and hypercohone G (11), respectively. Compound 1 is a new polycyclic polyprenylated acylphloroglucinol derivative, and compounds 2-11 are isolated from this plant for the first time. 11 compounds were tested for glucose uptake in L6 cells, and the results showed that compounds 7 and 8 had significant effect on glucose uptake.

Candida Infection-caused Lumbar Vertebral Osteomyelitis:Report of One Case / 中国医学科学院学报

Candida vertebral osteomyelitis,a rare but challenging clinical disease without specific clinical manifestations,is prone to delay in diagnosis,with potential risks of serious complications.Therefore,early diagnosis is the key to improving the cure rate of this disease.A case of invasive candida lumbar osteomyelitis after gastrointestinal surgery is reported in this paper.We analyzed the clinical characteristics of the patient and reviewed the relevant literature,aiming to improve the early diagnosis and treatment of this disease.

Clinical study on tube moxibustion plus point-toward-point needling method in treating refractory facial paralysis / 针灸推拿医学（英文版）

Objective: To evaluate the clinical efficacy of tube moxibustion plus point-toward-point needling method for refractory facial paralysis. Methods: A total of 100 patients with refractory facial paralysis who met the inclusion criteria were randomized into an observation group and a control group, with 50 cases in each group. Both groups were treated with acupuncture by point-toward-point needling method, mainly in the affected eye, cheek and mouth areas. The observation group was given additional tube moxibustion after receiving the point-toward-point needling method, which inserted a tube moxibustion device into the external acoustic meatus 1 cm on the affected side for 20 min. Both groups were treated once a day, 6 times a week, for 4 consecutive weeks. The House-Brackmann scale was scored before and after treatment, and the facial nerve electromyogram data were collected. Results: The total effective rate of the observation group was 93.6％, which was higher than 64.6％ of the control group, and the difference between the two groups was statistically significant (P<0.05). The proportion of new-onset facial paralysis complications (facial synkinesis, facial spasm, facial paralysis perversion, and crocodile tears) in the observation group was 6.4％, which was lower than 35.4％ in the control group. The difference between the two groups was statistically significant (P<0.05). In the observation group, the numbers of cases after treatment with the ratio of action potential amplitude between the affected side and the healthy side increased by 10％-30％ and over 30％ were more than those in the control group. And the difference between the two groups was statistically significant (P<0.05). Conclusion: Tube moxibustion plus point-toward-point needling method has a better effect in improving symptoms of refractory facial paralysis, decreasing the incidence of sequelae, and increasing clinical efficacy than the point-toward- point needling method alone.

Establishment of a platelet production model by bone marrow cavity transplantation of mouse primary megakaryocytes / 中华血液学杂志

Objective: To establish an intramedullary transplantation model of primary megakaryocytes to evaluate the platelet-producing capacity of megakaryocytes and explore the underlying regulatory mechanisms. Methods: Donor megakaryocytes from GFP-transgenic mice bone marrow were enriched by magnetic beads. The platelet-producing model was established by intramedullary injection to recipient mice that underwent half-lethal dose irradiation 1 week in advance. Donor-derived megakaryocytes and platelets were detected by immunofluorescence staining and flow cytometry. Results: The proportion of megakaryocytes in the enriched sample for transplantation was 40 to 50 times higher than that in conventional bone marrow. After intramedullary transplantation, donor-derived megakaryocytes successfully implanted in the medullary cavity of the recipient and produce platelets, which showed similar expression of surface markers and morphology to recipient-derived platelets. Conclusion: We successfully established an in vivo platelet-producing model of primary megakaryocytes using magnetic-bead enrichment and intramedullary injection, which objectively reflects the platelet-producing capacity of megakaryocytes in the bone marrow.

Anatomical controversies involved in radical resection of rectal cancer / 中华胃肠外科杂志

The concept of total mesorectal resection provides a quality control standard that can be followed for radical resection of rectal cancer, but some anatomical problems are still controversial. Compared with traditional open surgery, laparoscopic radical rectal surgery has better surgical vision, better neurological protection, better operating space. However, if the surgeon has insufficient understanding of the anatomy, collateral damage may occur, such as uncontrollable bleeding during the operation, postoperative urination and defecation dysfunction and so on. Based on the interpretation of the researches at home and abroad, combined with the clinical experience, we elucidate some associated issues, including anatomic variation of inferior mesenteric vessels, the controversy of inferior mesenteric artery ligation plane, the controversy of lymph node dissection in No. 253, the anatomical variation of middle rectal artery, and the anatomical controversy of lateral lymph node dissection in rectal cancer, in order to provide better cognitive process for the clinical front-line surgeons.

Evaluation of the clinical efficacy of muscle regions of meridians needling method for refractory facial paralysis based on infrared thermal imaging technology / 针灸推拿医学（英文版）

Objective: To explore the clinical efficacy of muscle regions of meridians needling method for refractory facial paralysis affecting different locations.Methods: A total of 110 participants were randomized into an observation group and a control group, with 55 cases in each group. The observation group was treated with muscle regions of meridians needling method, and the control group was treated with conventional facial three-line needling method. The clinical efficacy was evaluated four weeks after the treatment. And the infrared imaging spectra of the two groups were examined. Results: The total effective rate of the observation group was higher than that of the control group (P<0.05), and its curative effect for refractory facial paralysis located above the geniculate ganglion was better than that of the control group (P<0.05). The color scale distribution of different disease locations in the two groups varied significantly (P<0.05), the higher the disease location, the higher the occurrence rate of cool zone and low temperature zone. After treatment, the reductions of the facial and periotic temperature difference between the healthy side and the affected side in the observation group were statistically different from those in the control group (P<0.05). Conclusion: Muscle regions of meridians needling method has a better effect than facial three-line needling method for refractory facial paralysis. It can promote the microcirculation of the affected side of the face, improve the blood and oxygen supply to local tissues, and thus promote the repair of the peripheral facial nerve.

Lacrimal duct probing combined with tobramycin eye drops in the treatment of congenital dacryocystitis / 国际眼科杂志(Guoji Yanke Zazhi)

@#AIM:To explore the clinical efficacy of probing lacrimal passage combined with tobramycin eye drops in the treatment of congenital dacryocystitis. <p>METHODS: A total of 228 children(250 eyes)aged from 6mo-3a with congenital dacryocystitis treated in our hospital from January 2017 to June 2019 were included. They were assigned into three groups by age: 133 patients(149 eyes)aged from 6mo-1a(Group A), 62 patients(64 eyes)aged from 1-2a(Group B), and 33 patients(37 eyes)aged from 2-3a(Group C). All patients received lacrimal duct probing in surface anesthesia combined with postoperative tobramycin eye drops. <p>RESULTS: The probing cure rates of congenital dacryocystitis among there groups were 97.3%(Group A), 92.2%(Group B)and 83.8%(Group C), respectively. No adverse events reported. Through comparison of these three groups, the cure rate of children from 6mo-1a was the highest. The difference was statistically significant(<i>P</i>=0.009).<p>CONCLUSION: Lacrimal duct probing is effective in the treatment of congenital dacryocystitis, and it is safe and reliable to combine tobramycin eye drops(TOBREX)after surgery. The best time for treatment is 6mo-1a. The operation is simple, less complication, with high clinical value.

Bioinformatics Analysis and Verification of Acute B-Lymphocytic Leukemia in Children with Isolated Bone Marrow Relapse / 中国实验血液学杂志

OBJECTIVE@#To analyze the hub genes affecting the solely bone marrow relapse of childish acute B-cell lymphoblastic leukemia (B-ALL).@*METHODS@#The high-throughput RNA sequencing data were downloaded from TCGA database, the differentially expressed genes were screened by DESeq2 package of R, and the differentially expressed genes were grouped by GO function enrichment analysis and KEGG pathway enrichment analysis. Further, the data of STRING database and Cytoscape software were used to construct protein interaction network, screen hub genes and highly interaction protein sub network, perform GO and KEGG analysis of the hub genes and protein sub network respectively. JASPAR database was used to screen the upstream transcription factor of the hub gene promoter. Survival analysis based on the expression of hub genes was performed with clinical information attached to TCGA database. The bone marrow samples and clinical data of the patients were collected, the analysis results of hub genes were verified through clinical samples.@*RESULTS@#847 differentially expressed genes were collected, including 813 up-regulated genes, 34 down-regulated genes, 11 hub genes were screened out. The results of survival analysis showed that RPS5、RPS15、RPL23、RPL35、RPS8、RPS27A、RPS3、RPL9、RPS21、RPS7 and RPL38 showed significant effect on the survival of the children, and ZNF460 might be involved in their regulation. The high expressions of RPS3, RPS15, RPS8, RPS27A, and RPS21 had been verified in clinical samples of solely bone marrow relapsed patients.@*CONCLUSION@#RPS3, RPS15, RPS8, RPS27A, RPS21 can be used as biomarkers to indicate the malignant event of solely bone marrow relapse, which may be regulated by ZNF460.

Treatment status of patients over 65 years old with hypertension and multimorbidity in Qinghai / 公共卫生与预防医学

Objective To investigate the treatment status of patients over 65 years old with hypertension and multimorbidity in Qinghai, so as to provide reference for clinical treatment. Methods A total of 530 patients aged over 65 years old with hypertension involved multimorbidity in Qinghai were enrolled. The main disease types and polypharmacy were analyzed. Living with Medicines Questionnaire (LMQ) was used to assess the medical burden of patients, and the potentially inappropriate medication (PIM) was measured using screening tool of older people's prescriptions (STOPP) and screening tool to alert to right treatment (START) criteria. Various indexes were analyzed, including age, gender, working status, marital status, educational level, solitary life, primary caregiver, sources of income, types of diseases, number of drugs per prescription and ways of obtaining prescriptions. The independent factors of irrational drug use in patients with hypertension and multimorbidity were discussed. Results ① Among the 530 subjects, the proportion of patients complicated with two diseases, three diseases, and four or more diseases was 71.70%, 20.00% and 8.30%, respectively. ② The top five combination types of multimorbidity were hypertension with coronary heart disease (26.04%), hypertension with dyslipidemia (16.04%), hypertension with diabetes (13.02%), hypertension with coronary heart disease and dyslipidemia (7.55%), hypertension with coronary heart disease and diabetes (3.96%).③ The types of drugs per prescription ranged from 1 to 11, with an average of 6.13 types, and the multiple medication rate reached 83.02% (440/530). ④ LMQ scale indicated that drug burden of patients with multimorbidity was at moderate to severe degree. ⑤ Taking STOPP/START as standard, the incidence of PIM was 32.64%.⑥ Multivariate Logistic regression analysis showed that education level and prescription obtained from secondary or above level hospitals were protective factors for PIM in patients with hypertension and multiple diseases, while the type of medication was a risk factor for PIM. Conclusion The elderly patients with hypertension and multiple diseases in Qinghai have a high multiple medication rate, and are in a state of moderate to severe drug burden, moreover, the PIM rate is also relatively high, so clinical standardization of drug use and reduction of drug burden are of vital importance.

Early warning value of positive rectal swab culture for bloodstream infection of carbapenem-resistant Klebsiella pneumoniae in liver transplant recipients / 中华器官移植杂志

Objective:To explore the early warning value of carbapenem-resistant Klebsiella pneumoniae (CRKP) positivity in liver transplantation recipients with rectal swabs, examine the risk factors of CRKP bloodstream infection and provide the relevant treatments.Methods:From June 2018 to December 2019 in Organ Transplantation Research Institute Affiliated Tongji Hospital Tongji Medical College Huazhong University of Science & Technology, 148 cases of liver transplantation recipients with positive CRKP rectal swabbing were recruited. Clinical data were retrospectively analyzed. And the risk factors of CRKP bloodstream infections were examined for intervention and non-intervention groups to observe the effect of interventions of CRKP bloodstream infections.Results:Among them, 23 cases (15.5%) were positive for CRKP and 5 cases (21.7%) were infected with CRKP bloodstream. Rectal swab culture was negative in 125 cases and no bloodstream infection occurred. Long-term use of broad-spectrum antimicrobial agents, severe basic diseases (severe hepatitis), postoperative delayed graft liver function recovery, acute renal failure requiring renal replacement therapy (RRT) and postoperative anti-thymocyte globulin (ATG) induction were risk factors. In intervention group, there were 2 cases (11.1%) of 18 patients with positive CRKP in rectal swab culture in late stage. Among 5 CRKP-positive recipients without intervention, 3 cases (60%) developed later CRKP bloodstream infection. The incidence of bloodstream infection was significantly lower in intervention group than that in non-intervention group ( P<0.05). Conclusions:Rectal swab culture for liver transplantation recipients provides early warning for CRKP bloodstream infection. Interventions for CRKP positive high-risk recipients with rectal swab culture may reduce the occurrence of CRKP bloodstream infection and lower the risk of CRKP bloodstream infection in liver transplantation recipients.

Prognostic significance of measurable residual disease based on multiparameter flow cytometry in childhood acute myeloid leukemia / 中国当代儿科杂志

OBJECTIVES@#To study the prognostic value of measurable residual disease (MRD) for childhood acute myeloid leukemia (AML) by analyzing MRD-guided risk stratification therapy.@*METHODS@#A total of 93 children with AML were prospectively enrolled in this study. Chemotherapy with the 2015-AML-03 regimen was completed according to the risk stratification determined by genetic abnormality at initial diagnosis and MRD and bone marrow cytology after induction therapy I. Multiparameter flow cytometry was used to dynamically monitor MRD and analyze the prognostic effect of MRD on 3-year cumulative incidence of recurrence (CIR) rate, event-free survival (EFS) rate, and overall survival (OS) rate.@*RESULTS@#The 93 children with AML had a 3-year CIR rate of 48%±6%, a median time to recurrence of 11 months (range 2-32 months), a 3-year OS rate of 65%±6%, and a 3-year EFS rate of 50%±5%. After induction therapy I and intensive therapy I, the MRD-positive children had a significantly higher 3-year CIR rate and significantly lower 3-year EFS and OS rates than the MRD-negative children (@*CONCLUSIONS@#MRD has predictive value for the prognosis of children with AML. Based on the MRD-guided risk stratification therapy, reasonable application of chemotherapy may improve the overall prognosis of children with AML.

Clinical features and prognosis of pediatric acute megakaryocytic leukemia / 中国当代儿科杂志

OBJECTIVE@#To study the clinical features and prognosis of children with acute megakaryocytic leukemia (AMKL) and the clinical effect of acute myeloid leukemia 03 (AML03) regimen for the treatment of pediatric AMKL.@*METHODS@#The clinical data were collected from 47 children with AMKL who were diagnosed from May 2011 to December 2019. The treatment outcomes and prognostic factors were analyzed. The Kaplan-Meier method and the log-rank test were used for survival analysis.@*RESULTS@#Among the 47 children with AMKL, 22 with non-Down syndrome-AMKL were treated by the AML03 regimen, with a median follow-up time of 11.4 months. For the 22 non-Down syndrome-AMKL patients, the remission rate of bone marrow cytology was 85% and the negative rate of minimal residual disease (MRD) was 79% after induction Ⅱ, with a 2-year overall survival (OS) rate of (50±13)% and a 2-year event-free survival (EFS) rate of (40±12)%. The group with positive immunophenotypic marker CD56 had significantly lower 2-year EFS and OS rates than the group with negative CD56 (@*CONCLUSIONS@#Children with AMKL tend to have a low remission rate and a poor prognosis. Positive immunophenotypic marker CD56, bone marrow cytology during early treatment response, and MRD results are important factors influencing the prognosis. Allogeneic hematopoietic stem cell transplantation has no significant effect on the prognosis of AMKL.

Effect of education intervention on oral health in 40 pre-pregnancy women / 上海预防医学

Objective:To investigate the effect of intervention on oral health of pre-pregnancy women before and after oral health education. Methods:A total of 40 pre-pregnancy women were selected from the Reproductive Medicine Center of General Hospital of Ningxia Medical University according to the inclusion criteria， general conditions， clinical evaluation of plaque and oral health education. Their oral health conditions were evaluated before and after oral health intervention. Results:Based on the oral health status survey， there were significant differences between before and after intervention （all P<0.001） in the following five items： “bleeding from brushing teeth”， “difficulty biting or chewing food”， “sensitivity of teeth or gums to cold， hot， or sweet stimuli”， "restriction of the type and amount of food eaten for dental reasons” and “medication for oral pain or discomfort”. There were significant differences between before and after intervention （all P<0.001） in four items of oral health care behavior including “How often do you brush your teeth？”， “How do you brush your teeth？”， “gargle after meals”， and “floss use or not” but showed no significant difference in toothbrush replacement （P=0.467）. There were significant differences （all P<0.001） in five items of oral health knowledge including “periodontal disease can lead to premature delivery of newborns”， “periodontal disease can lead to low birth weight of newborns”， “need oral examination before pregnancy”， “pregnancy prone to oral diseases”， “mid-pregnancy is the best period for the treatment of oral diseases”. The oral plaque index before intervention was 5.47±1.08 and reduced to 4.37±0.94 after intervention （t=7.93， P=0.001）. Conclusion:Through education intervention， the oral health status of pre-pregnancy women can be improved. The knowledge of oral health can be improved and the level of oral health care can be enhanced. Oral health intervention can effectively reduce the level of plaque in pre-pregnancy women and improve the efficiency of plaque clearance.