Objective To investigate the clinical value of hemostatic silk in prevention of wound bleeding and wound healing after endoscopic submucosal dissection (ESD). Methods Experiment group: animal model was made by rabbit underwent ESD simulation in its' stomach and laying hemostatic silk on its' wound;control group: animal model was made by pig underwent ESD simulation in its' colon without any healing management. All the ulcers sites were endoscopically and pathologically examined to evaluate the hemorrhage and healing of the wound on 3 days, 1 week, 2 weeks and 4 weeks after the procedure. Results The blood loss in experiment group was significantly lower than that in control group. The wounds of all the experimental pigs underwent colon ESD successfully covered with hemostatic silk postoperatively. Endoscopic pathological examination shown better healing procedure in experiment group. No procedure-related adverse event occurred in both groups. Conclusions Hemostatic silk has potential application value in healing the wound after ESD demonstrated by animal experiment.

Objective:To observe the effect of Ba Duan Jin(Eight-brocade Exercise)plus Tuina(Chinese therapeutic massage)in treating primary dysmenorrhea due to cold-induced blood stasis in female college students and on the score of fatigue scale-14(FS-14). Methods:Seventy-two female college students with primary dysmenorrhea due to cold-induced blood stasis were randomized into a Tuina group and a joint group,with 36 cases in each group.The Tuina group only received Tuina manipulations.In the joint group,besides the same Tuina manipulations,patients practiced Ba Duan Jin.For both groups,the once-daily intervention was conducted from 6 d before the menstrual period until menstrual day 1 for 3 menstrual cycles.Changes in the scores of COX menstrual symptom scale(CMSS),visual analog scale(VAS),and FS-14 after the intervention were observed.Clinical efficacy was also estimated. Results:During the process,1 case dropped out in the Tuina group,and 35 cases completed the intervention;2 cases dropped out in the joint group,and 34 cases completed the intervention.The total effective rate was 94.1%in the joint group,higher than 88.6%in the Tuina group(P<0.05).After treatment,the symptom duration and intensity scores in the scores of CMSS,VAS,and FS-14 declined in both groups(P<0.05 or P<0.01);the CMSS symptom duration score and FS-14 score were lower in the joint group than in the Tuina group(P<0.05). Conclusion:Tuina manipulations alone or combined with Ba Duan Jin practice can effectively treat primary dysmenorrhea due to cold-induced blood stasis in female college students;when combined with Ba Duan Jin practice,Tuina manipulations can more significantly improve pain duration and fatigue,suggesting the advantages of combining Tuina Gongfa and manipulations.

The Letournel-Judet classification system for acetabular fractures is widely used, but there are still some shortcomings, such as incomplete classification and confusion of classification concepts, which cannot effectively guide the treatment. Professor Hou Zhiyong proposed and elaborated an improved acetabular fracture classification system based on the concept of three columns of acetabulum. However, the credibility and repeatability of the classification still lacked validation from clinical data. In this regard, the author included 463 patients with relatively complete imaging data admitted to Third Hospital of Hebei Medical University and Honghui Hospital affiliated to Xi'an Jiaotong University Medical College in the past five years. Four trauma orthopedists classified the patients according to the modified classification method of acetabular fracture. After two months, the original sequence of imaging data was disrupted and re-classified by the same trauma orthopedists. The consistency of the classification was evaluated by Kappa test and compared with Letournel-Judet classification. The results showed that credibility and repeatability of the modified classification were higher than Letournel-Judet classification, suggesting the feasibility of clinical application.

Objective:To evaluate the 1-year postoperative efficacy of four bariatric procedures, namely sleeve gastrectomy (SG), Roux-en-Y gastric bypass (RYGB), single anastomosis duodenal-ileal bypass with sleeve gastrectomy (SADI-S), and biliopancreatic diversion with duodenal switch (BPD/DS) for treating super obesity.Methods:In this retrospective observational study, we analyzed the clinical data of 40 patients with super obesity (body mass index [BMI]≥50 kg/m 2) who had undergone bariatric surgery in the China-Japan Union Hospital of Jilin University from November 2015 to December 2020. The study cohort consisted of 21 men and 19 women of average age 31.7±9.0 years. The preoperative weight and BMI were (159.2±16.9) kg and (53.4±3.0) kg/m 2, respectively. Prior to the surgery, 30 individuals had hypertension, 27 hyperuricemia, 15 type 2 diabetes, 10 abnormally high total cholesterol, 20 abnormally high triglycerides, and 24 abnormally high low-density lipoprotein. We divided the participants into four groups according to the type of operation: SG group ( n=16), RYGB group ( n=9), SADI-S group ( n=9) and BPD/DS group ( n=6). We examined the following factors: weight, BMI, excess weight loss (%), total weight loss (%), and remission of preoperative metabolic diseases (including hypertension, hyperuricemia, type 2 diabetes, and hyperlipidemia) 3, 6, and 12 months after surgery. The variables assessed for hypertension were systolic and diastolic blood pressure; for type 2 diabetes, glycated hemoglobin; and for hyperlipidemia, total cholesterol, triglycerides, and low-density lipoprotein 1-year after the surgery. The safety of surgery was also assessed. Results:All patients successfully completed laparoscopic procedures, none of them requiring conversion to laparotomy. The amount of blood loss during surgery was less than 50 mL. Postoperative hospital stay was 6–16 days. There were no deaths during the perioperative period. However, two postoperative complications occurred in the RYGB group, namely bleeding and anastomotic leakage. No complications were detected in the other groups. At 3, 6, and 12 months after surgery, percentage of excess weight loss was 36.6±11.0, 62.4±15.7, and 68.2±16.0 ( F=21.830, P<0.001) in the SG group; 30.6±6.9, 42.5±5.8, and 50.6±11.1 ( F=13.222, P<0.001) in the RYGB group; 39.7±7.8, 54.6±12.7, and 81.9±12.0 ( F=33.821, P<0.001) in the SADI-S group; and 40.2±4.8, 57.7±11.8, and 82.8±14.9 ( F=21.552, P<0.001), respectively, in the BPD/DS group. The percentage of excess weight loss increased significantly over the 12-month observation period in all groups . Compared with before surgery, hypertension and hyperuricemia in the SG, SADI-S, and BPD-DS groups showed significant improvement after one year (all P<0.05). However, only the SADI-S group exhibited a significant decrease in glycosylated hemoglobin concentrations ( P=0.038). Only the BPD-DS group showed significant decreases in various indicators of hyperlipidemia (all P<0.05). The improvements in obesity-related complication indexes did not reach statistical significance in the RYGB group (all P>0.05). Conclusion:SG, RYGB, SADI-S and BPD/DS are all safe and effective treatments for super obesity. All of these procedures can improve the associated metabolic diseases to a certain extent.

Objective:To evaluate the 1-year postoperative efficacy of four bariatric procedures, namely sleeve gastrectomy (SG), Roux-en-Y gastric bypass (RYGB), single anastomosis duodenal-ileal bypass with sleeve gastrectomy (SADI-S), and biliopancreatic diversion with duodenal switch (BPD/DS) for treating super obesity.Methods:In this retrospective observational study, we analyzed the clinical data of 40 patients with super obesity (body mass index [BMI]≥50 kg/m 2) who had undergone bariatric surgery in the China-Japan Union Hospital of Jilin University from November 2015 to December 2020. The study cohort consisted of 21 men and 19 women of average age 31.7±9.0 years. The preoperative weight and BMI were (159.2±16.9) kg and (53.4±3.0) kg/m 2, respectively. Prior to the surgery, 30 individuals had hypertension, 27 hyperuricemia, 15 type 2 diabetes, 10 abnormally high total cholesterol, 20 abnormally high triglycerides, and 24 abnormally high low-density lipoprotein. We divided the participants into four groups according to the type of operation: SG group ( n=16), RYGB group ( n=9), SADI-S group ( n=9) and BPD/DS group ( n=6). We examined the following factors: weight, BMI, excess weight loss (%), total weight loss (%), and remission of preoperative metabolic diseases (including hypertension, hyperuricemia, type 2 diabetes, and hyperlipidemia) 3, 6, and 12 months after surgery. The variables assessed for hypertension were systolic and diastolic blood pressure; for type 2 diabetes, glycated hemoglobin; and for hyperlipidemia, total cholesterol, triglycerides, and low-density lipoprotein 1-year after the surgery. The safety of surgery was also assessed. Results:All patients successfully completed laparoscopic procedures, none of them requiring conversion to laparotomy. The amount of blood loss during surgery was less than 50 mL. Postoperative hospital stay was 6–16 days. There were no deaths during the perioperative period. However, two postoperative complications occurred in the RYGB group, namely bleeding and anastomotic leakage. No complications were detected in the other groups. At 3, 6, and 12 months after surgery, percentage of excess weight loss was 36.6±11.0, 62.4±15.7, and 68.2±16.0 ( F=21.830, P<0.001) in the SG group; 30.6±6.9, 42.5±5.8, and 50.6±11.1 ( F=13.222, P<0.001) in the RYGB group; 39.7±7.8, 54.6±12.7, and 81.9±12.0 ( F=33.821, P<0.001) in the SADI-S group; and 40.2±4.8, 57.7±11.8, and 82.8±14.9 ( F=21.552, P<0.001), respectively, in the BPD/DS group. The percentage of excess weight loss increased significantly over the 12-month observation period in all groups . Compared with before surgery, hypertension and hyperuricemia in the SG, SADI-S, and BPD-DS groups showed significant improvement after one year (all P<0.05). However, only the SADI-S group exhibited a significant decrease in glycosylated hemoglobin concentrations ( P=0.038). Only the BPD-DS group showed significant decreases in various indicators of hyperlipidemia (all P<0.05). The improvements in obesity-related complication indexes did not reach statistical significance in the RYGB group (all P>0.05). Conclusion:SG, RYGB, SADI-S and BPD/DS are all safe and effective treatments for super obesity. All of these procedures can improve the associated metabolic diseases to a certain extent.

OBJECTIVE To assess the association of copy number variations (CNVs) in chromosome 17q with the overall survival(OS) of patients with hepatocellular carcinoma(HCC), and to screen for target genes contained in the OS-related CNVs. METHODS A total of 174 HCC cases were enrolled. For 66 patients, the follow-up data was available. High-resolution Agilent Hu-244A array comparative genomic hybridization (aCGH) and Affymetrix U133 Plus 2.0 expression arrays were used to detect CNVs and gene expression of genes from the 17q region, respectively. The association of CNVs and OS was assessed with Log-rank test, Kaplan-Meier survival analysis, and Cox proportional hazards models. The gene expression in HCCs with 17q gain, HCCs without, and non-tumor liver tissues were compared with a Mann-Whitney U test. RESULTS Univariate association analysis showed that copy number gain in 17q25.1-25.3 was significantly associated with reduced OS (Log-rank test, P = 0.00002), and HCC cases with 17q25.1-25.3 gain had a 4.76-fold (95%CI: 2.31-9.81) increased hazard ratio (HR) for death from HCC, as compared to those without the gain. Multivariate Cox proportional hazards regression model revealed 17q25.1-25.3 gain to be an independent prognostic marker for poor OS (HR = 3.17, 95%CI: 1.39-7.26, P = 0.006). The expression levels of 18 genes in 17q25.1-25.3 including SLC9A3R1, GRB2, and TK1 were significantly increased in HCCs with gain than in those without (all P < 0.01) and non-tumor liver tissues (all P < 0.01). CONCLUSION The association of 17q25.1-25.3 gain with reduced OS has indicated that it is a prognostic marker for poor patient survival in HCC, for which SLC9A3R1, GRB2, and TK1 are candidate genes.
Adult ; Aged ; Carcinoma, Hepatocellular ; genetics ; mortality ; Chromosomes, Human, Pair 17 ; DNA Copy Number Variations ; Female ; Humans ; Liver Neoplasms ; genetics ; mortality ; Male ; Middle Aged

Objective:Hereditary neuropathy with liability to pressure palsy(HNPP)is a rare autosomal dominant peripheral neuropathy,usually caused by heterozygous deletion mutations in the peripheral myelin protein 22(PMP22)gene.This study aims to investigate the clinical and molecular genetic characteristics of HNPP. Methods:HNPP patients in the Department of Neurology at Third Xiangya Hospital of Central South University from 2009 to 2023 were included in this study.The general clinical data,nervous electrophysiological and molecular genetic examination results were collected and analyzed.Molecular genetic examination was to screen for deletion of PMP22 gene using multiplex ligation-dependent probe amplification(MLPA)after extracting genomic DNA from peripheral blood;and if no PMP22 deletion mutation was detected,next-generation sequencing was used to screen for PMP22 point mutations.The related literatures of HNPP were reviewed,and the clinical and molecular genetic characteristics of HNPP patients were analyzed. Results:A total of 34 HNPP patients from 24 unrelated Chinese Han families were included in this study,including 25 males and 9 females.The average age at illness onset was 22.0 years.Sixty-two point five percent of the families had a positive family history.Among them,30 patients had symptoms of peripheral nerve paralysis.Patients often presented with paroxysmal single limb weakness with(or)numbness(25/30),and some patients had paroxysmal unilateral recurrent laryngeal nerve(vagus nerve)paralysis(2/30).Physical examination revealed muscle weakness(23/29),hypoesthesia(9/29),weakened or absent ankle reflexes(20/29),distal limb muscle atrophy(8/29)and high arched feet(5/29).Most patients(26/30)could fully recover to normal after an acute attack.Thirty-one patients in our group underwent nervous electrophysiological examination,and showed multiple demyelinating peripheral neuropathies with both motor and sensory nerves involved.Most patients showed significantly prolonged distal motor latency(DML),mild to moderate nerve conduction velocity slowing,decreased amplitude of compound muscle action potential(CMAP)and sensory nerve action potential(SNAP),and sometimes with conduction block.Nerve motor conduction velocity was(48.5±5.5)m/s,and the CMAP amplitude was(8.4±5.1)mV.Nerve sensory conduction velocity was(37.4±10.5)m/s,and the SNAP amplitude was(14.4±15.2)μV.There were 24 families,23 of whom had the classical PMP22 deletion,the last one had a heterozygous pathogenic variant in the PMP22 gene sequence(c.434delT).By reviewing clinical data and genetic testing results of reported 1 734 HNPP families,we found that heterozygous deletion mutation of PMP22 was the most common pathogenic mutation of HNPP(93.4%).Other patients were caused by PMP22 small mutations(4.0%),PMP22 heterozygous gross deletions(0.6%),and PMP22 complex rearrangements(0.1%).Thirty-eight sorts of HNPP-related PMP22 small mutations was reported,including missense mutations(10/38),nonsense mutations(4/38),base deletion mutations(13/38),base insertion mutations(3/38),and shear site mutations(8/38).HNPP patients most often presented with episodic painless single nerve palsy.Common peroneal nerve,ulnar nerve,and brachial plexus nerve were the most common involved nerves,accounting for about 75%.Only eighteen patients with cranial nerve involved was reported. Conclusion:Heterozygous deletion mutation of PMP22 is the most common pathogenic mutation of HNPP.Patients is characterized by episodic and painless peripheral nerve paralysis,mainly involving common peroneal nerve,ulnar nerve,and other peripheral nerves.Nervous electrophysiological examination has high sensitivity and specificity for the diagnosis of HNPP,which is manifested by extensive demyelinating changes.For patients with suspected HNPP,nervous electrophysiological examination and PMP22-MLPA detection are preferred.Sanger sequencing or next generation sequencing can be considered to detect other mutations of PMP22.

The occurrence and persistent pandemic of 2019 coronavirus pneumonia (COVID-19), caused by the infection of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), has taken a big toll on global public health. The development of virus detection techniques and its application played an important role in health management, including screening, identification and treatment of patients, and slowing down the spread of virus. This review briefly summarizes the biological characteristics of SARS-CoV-2, and introduces in detail the SARS-CoV-2 detection techniques developed and used worldwide. Perspectives on the follow-up development of virus detection techniques were presented, with the aim to facilitate medical diagnosis, public health protection, disease prevention and control.
COVID-19/diagnosis* ; Humans ; Pandemics/prevention & control* ; SARS-CoV-2

Sheep pox is widespread worldwide and is the most severe animal pox virus infection. This study aimed to identify the key microRNAs (miRNAs) differentially expressed in the exosomes of sheep poxvirus-infected cells and their target genes and related pathways and provide a theoretical basis for an in-depth understanding of the molecular mechanisms of sheep poxvirus-infected cells. In this study, the differentially expressed miRNAs were verified by quantitative polymerase chain reaction (qPCR), and the target genes of miRNAs were predicted and analyzed by bioinformatics. The qPCR results showed that the expression trends of oar-miR-21, oar-miR-10b, oar-let-7f, oar-let-7b, and oar-miR-221 were consistent with the sequencing results. The Gene Ontology and Kyoto Encyclopedia of Genes and Genomes results showed that differentially expressed miRNAs were mainly involved in the immune system processes of the Arf6 downstream pathway. The target genes Reactome pathways were mainly enriched in the RAC1 GTPase cycle, CDC42 GTPase cycle, RHO GTPase cycle, RHOV GTPase cycle, and post-transcriptional silencing of small RNAs. The transcription factors SP4, NKX6-1, MEF2A, SP1, EGR1, and POU2F1 that may be connected to sheep pox virus (SPPV)-infected cells were discovered by transcription factor annotation screening. In conclusion, this study screened for differentially expressed miRNAs in SPPV-infected cells and performed a series of bioinformatic analyses of their target genes to provide a theoretical basis for the molecular mechanism of sheep pox virus infections of cells. The data can be used as basic information in future studies on the defense mechanisms against poxvirus infections.

Sheep pox is widespread worldwide and is the most severe animal pox virus infection. This study aimed to identify the key microRNAs (miRNAs) differentially expressed in the exosomes of sheep poxvirus-infected cells and their target genes and related pathways and provide a theoretical basis for an in-depth understanding of the molecular mechanisms of sheep poxvirus-infected cells. In this study, the differentially expressed miRNAs were verified by quantitative polymerase chain reaction (qPCR), and the target genes of miRNAs were predicted and analyzed by bioinformatics. The qPCR results showed that the expression trends of oar-miR-21, oar-miR-10b, oar-let-7f, oar-let-7b, and oar-miR-221 were consistent with the sequencing results. The Gene Ontology and Kyoto Encyclopedia of Genes and Genomes results showed that differentially expressed miRNAs were mainly involved in the immune system processes of the Arf6 downstream pathway. The target genes Reactome pathways were mainly enriched in the RAC1 GTPase cycle, CDC42 GTPase cycle, RHO GTPase cycle, RHOV GTPase cycle, and post-transcriptional silencing of small RNAs. The transcription factors SP4, NKX6-1, MEF2A, SP1, EGR1, and POU2F1 that may be connected to sheep pox virus (SPPV)-infected cells were discovered by transcription factor annotation screening. In conclusion, this study screened for differentially expressed miRNAs in SPPV-infected cells and performed a series of bioinformatic analyses of their target genes to provide a theoretical basis for the molecular mechanism of sheep pox virus infections of cells. The data can be used as basic information in future studies on the defense mechanisms against poxvirus infections.