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OBJECTIVE@#To assess the effectiveness of the single Kocher-Langenbeck approach combined with anterograde channel screw technique for the treatment of acetabular transverse and posterior wall fractures.@*METHODS@#Between March 2020 and October 2022, 17 cases of acetabular transverse and posterior wall fractures were treated with the single Kocher-Langenbeck approach combined with anterograde channel screw technique. There were 11 males and 6 females, with an average age of 53.6 years (range, 42-64 years). Causes of injury included traffic accident in 12 cases, and falling from height in 5 cases. The time from injury to operation ranged from 4 to 16 days with an average of 8.8 days. The operation time, intraoperative blood loss, and fluoroscopy frequency were recorded; X-ray films were reviewed regularly after operation to observe the fracture healing, and postoperative complications were recorded. At last follow-up, Matta score was used to evaluate the reduction of fracture, Harris score and modified Merle D'Aubigné-Postel scores system were used to evaluate the hip joint function.@*RESULTS@#The operation time was 150-230 minutes (mean, 185.9 minutes), the intraoperative blood loss was 385-520 mL (mean, 446.2 mL), and the fluoroscopy frequency was 18-34 times (mean, 27.5 times). Postoperative fat liquefaction occurred in 1 case and the other incisions healed by first intention; 3 cases had limb numbness after operation, and the symptoms disappeared after active symptomatic treatment; no urogenital system and intestinal injury occurred. All patients were followed up 12-28 months (mean, 19.9 months). Bone union was achieved in all cases with an average healing time of 10.8 weeks (range, 8-14 weeks). There was no complication such as loosening and breakage of internal fixators. At last follow-up, according to Matta score, 12 cases achieved anatomic reduction, 3 satisfactory reduction, and 2 fair reduction, the satisfactory rate was 88.2%; according to Harris hip function score, 12 cases were excellent, 3 good, and 2 fair, the excellent and good rate was 88.2%; according to the modified Merle D'Aubign Aubigné-Postel scoring system, the results were excellent in 11 cases, good in 3 cases, and fair in 3 cases, with an excellent and good rate of 82.4%.@*CONCLUSION@#The single Kocher-Langenbeck approach combined with anterograde channel screw technique is a minimally invasive method for the treatment of acetabular transverse and posterior wall fractures with less complications, simple operation, and satisfactory effectiveness.
الموضوعات
Male , Female , Humans , Middle Aged , Blood Loss, Surgical , Fracture Fixation, Internal/methods , Treatment Outcome , Fractures, Bone/surgery , Acetabulum/injuries , Bone Screws , Hip Fractures/surgery , Retrospective Studiesالملخص
Objective To explore the effect of the orthokeratology lenses on the control of different types of aniso-metropia in myopic children.Methods A total of 99 myopic children aged 8 to 16 years who got the orthokeratology len-ses at the Department of Ophthalmology,Heping Hospital Affiliated to Changzhi Medical College from September 2020 to November 2022 with complete data were included.These children were divided into the simple myopic anisometropia group(monocular myopia,binocular diopter difference ≥ 1.00 D,n=39)and the compound myopic anisometropia group(binoc-ular myopia,binocular diopter difference ≥ 1.00 D,n=60).The children with higher anisometropia(binocular diopter difference ≥ 2.50 D)in the two groups were set as the high anisometropia subgroup(n=18 and 29,respectively),and chil-dren with lower anisometropia(1.00 D≤ binocular diopter difference<2.50 D)were set as the low anisometropia subgroup(n=21 and 31,respectively).In each group,eyes with a higher diopter were set as the high diopter eyes,and the contra-lateral eyes with a lower diopter were set as the low diopter eyes.Diopter,corneal topography,intraocular pressure,cor-neal endothelium and axial length of children in the two groups were examined and recorded.The changes in axial length before and after wearing orthokeratology lenses for 1 year were compared between the two groups,analyzing the correla-tion between the degree of anisometropia and changes in the binocular axial length.Results After wearing orthokeratolo-gy lenses for 1 year,children in both groups had an increase in the axial length with a lower increase in the axial length of the high diopter eyes compared to the low diopter eyes;before and 1 year after wearing orthokeratology lenses,the axial length of high diopter eyes was greater than that of the low diopter eyes in both groups,and the differences were statistical-ly significant(all P<0.05).Both groups of children showed a decrease in the binocular axial length difference after wear-ing the orthokeratology lenses for 1 year;before and 1 year after wearing orthokeratology lenses,the binocular axial length difference of children in the simple myopic anisometropia group was greater than that in the compound myopic anisometro-pia group,and the differences were statistically significant(t=4.903 and 2.670;both P<0.05).The changes in binocular axial length difference before and after wearing the orthokeratology lenses of children in the high anisometropia subgroup and low anisometropia subgroup of the simple myopic anisometropia group were greater than those in the high anisometro-pia subgroup and low anisometropia subgroup of the compound myopic anisometropia group,respectively,and the differ-ences were statistically significant(both P<0.05).In the simple myopic anisometropia and compound myopic anisometro-pia groups,the degree of anisometropia was positively correlated with the binocular axial length changes before and 1 year after wearing the orthokeratology lenses(r=0.423 and 0.510,both P<0.05).Conclusion Orthokeratology lenses can effectively reduce the difference in binocular axial length of children with myopic anisometropia,and their control effect on simple myopic anisometropia is better than that of compound myopic anisometropia.
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Objective@#To explore the moderating role of estradiol in the relationship between parenting styles and preschool children's behavioral problems, so as to provide a theoretical basis for improving the development of human s emotional health development in early life stage.@*Methods@#During September to November in 2022, 354 children aged 3-6 years and their parents from two kindergartens in Bengbu City were chosen by using stratified cluster sampling method for the questionnaire survey. The Parenting Style Scale and the Child Behavior Checklist (CBCL) were used to collect information on parenting style and child behavioral problems. Salivary estradiol of children was collected and tested. Independent samples t test was applied to compare the scores of the scale for parental up bringing and children s behavioral problems, and Pearson correlation analysis was conducted to explore the relationship among parental upbringing, estradiol and children s behavioral problems.@*Results@#Parents doting, laissez faire, autocratic, and inconsistent parenting styles were positive associated with child behavior problems( r =0.14-0.70); fathers democratic parenting style was negatively associated with child behavior problems( r =-0.14,-0.22,-0.21,-0.17,-0.27,-0.20); mothers democratic parenting styles was negatively correlated with scores on all five dimensions of child behavior problems except the withdrawal dimension ( r =-0.14,-0.12,-0.13,-0.21,-0.12)( P <0.05). Estradiol levels had significant moderating effects on maternal doting parenting style and children s withdrawal ( β =0.68) as well as social problems ( β =-1.00), also moderating laissez faire parenting styles and children s withdrawal problems ( β =0.75)( P <0.05). For children with low levels of estradiol, withdrawal problem scores were negatively associated with mother s doting parenting style and positively associated with laissez faire parenting style, and socialization problem scores were associated with mother s doting parenting style; for children with high levels of estradiol, withdrawal problem scores were positively associated with mother s doting parenting style, and socialization problem scores were associated with mother s doting parenting style ( t=2.84, 6.24, 3.16 , 2.37, 4.49, P <0.05).@*Conclusions@#Parenting styles are strongly associated with child behavioral problems; estradiol levels play a moderating role in mothers doting, laissez faire parenting styles and children s withdrawal problems and social problems.Parents should adopt more positive parenting styles and focus on the role of estradiol levels in maternal education to reduce the occurrence of behavioral problems in children.
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PiggyBac is a transposable DNA element originally discovered in the cabbage looper moth (Trichoplusia ni). The T. ni piggyBac transposon can introduce exogenous fragments into a genome, constructing a transgenic organism. Nevertheless, the comprehensive analysis of endogenous piggyBac-like elements (PLEs) is important before using piggyBac, because they may influence the genetic stability of transgenic lines. Herein, we conducted a genome-wide analysis of PLEs in the brown planthopper (BPH) Nilaparvata lugens (Stål) (Hemiptera: Delphacidae), and identified a total of 28 PLE sequences. All N. lugens piggyBac-like elements (NlPLEs) were present as multiple copies in the genome of BPH. Among the identified NlPLEs, NlPLE25 had the highest copy number and it was distributed on five chromosomes. The full length of NlPLE25 consisted of terminal inverted repeats and sub-terminal inverted repeats at both terminals, as well as a single open reading frame transposase encoding 546 amino acids. Furthermore, NlPLE25 transposase caused precise excision and transposition in cultured insect cells and also restored the original TTAA target sequence after excision. A cross-recognition between the NlPLE25 transposon and the piggyBac transposon was also revealed in this study. These findings provide useful information for the construction of transgenic insect lines.
الموضوعات
Animals , Amino Acid Sequence , Animals, Genetically Modified , DNA Transposable Elements/genetics , Hemiptera/genetics , Transposases/geneticsالملخص
【Objective】 To evaluate the application of computer-aided personal interviewing (CAPI) and computer-assisted telephone interview (CATI) in the satisfaction survey among blood donors. 【Methods】 Voluntary blood donors from stationary and mobile blood collecting sites of Zhejiang Blood Center from Jan 2018 to Dec 2020 were surveyed according to the principle of random sampling. The satisfactory degree of totally 21 items involving pre-donation, in-donation, and post-donation were surveyed. The outcomes were categorized and subsequently analyzed by SPSS23.0, and the differences in demography and blood types between different years were analyzed. 【Results】 5 534 voluntary blood donors were investigated via CAPI and CATI, which contributed to the reflection of real needs of blood donors. The results showed that the comprehensive satisfactory degree of blood donors increased from 95.4% in 2018 to 95.8% in 2020. Significant difference has been found in the eight indexes in Zhejiang (P<0.05) as blood donation publicity, environment of blood donation, service and professional skills of healthcare physicians, skills of phlebotomist before donation, service of pre-donation testing physicians, service and skills of phlebotomist during donation. 【Conclusion】 The combination of CAPI and CATI methods used in the survey of blood donor satisfactory degree, which has presented credible results, is more objective, convenient and time saving, therefore worth popularizing.
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BACKGROUND: It has been pointed out that perioperative hypothermia can increase the incidence of coagulation, acidosis, stroke, sepsis, pneumonia and myocardial infarction, so it is of great significance to monitor and maintain normal body temperature during perioperative period. OBJECTIVE: To design a medical carbon fiber thermostatic heating pad to prevent perioperative hypothermia and reduce complications. METHODS: The carbon fiber heating technology and medical equipment standard are combined and integrated into many advanced technologies. The system mainly consisted of power supply conversion, operation system, computer control system, PWM control and output, various heating pads and temperature controlling measurement system. A total of 200 patients undergoing epidural anesthesia in Zhengzhou First People's Hospital were randomly divided into two groups: the observation group (n=100) was treated with the medical carbon fiber thermostatic heating pad (adjusting temperature 38-40 oC), and the control group (n=100) with common quilt. The body temperature and shivering were monitored before operation, 10, 30 and 60 minutes after anesthesia, and 2 hours after operation. RESULTS AND CONCLUSION: (1) The heating pad had the characteristics of explosion proof, power purification, shielding isolation, output protection, computer control, and PWM modulation. (2) In clinical application, there was no skin irritation and skin allergy reaction in the observation group. (3) During operation, the body temperature of the observation group was relatively stable, and there was no significant difference in the body temperature in the observation group before and at 2 hours after operation (P> 0.05). However, the fluctuation of body temperature in control group was visible and showed a downward trend, and the body temperature in the control group showed a significant difference before and 2 hours after operation (P < 0.05). The body temperature of 10, 30, 60 minutes after anesthesia and 2 hours after operation was significantly higher in the observation group than the control group (P < 0.05). (4) The postoperative incidence of shivering in the control group was significantly higher than that in the observation group (18% vs. 5%, P < 0.05). To conclude, the medical carbon fiber thermostatic heating pad is advanced in technology, safe and reliable in use, providing a new way for the prevention of perioperative shivering.
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Objective To strengthen the voluntary blood donation publicity through the analysis of the voluntary blood donation.Methods The ratio of voluntary blood donation was statistically analyzed between staffs in some Medical institutions in Hangzhou and Ordinary people.Results The ratio of voluntary blood donation in ordinary people is 1.82%,which is higher than the national data (1.05%).The ratio of medical institutions in Hangzhou is 9.54%,which is far higher than ordinary people.The data of provincial,civic and private medical institutions are 10.20%,6.11% and 15.42%,respectively.Conclusion The ratio of voluntary blood donation is different between different level hospitals,and the staffs in medical institutions are more willing to donate blood than ordinary people.
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Objective To standardize the job training and improve the basic professional quality and induction ability of practitioners in Blood Services by setting up job training assessment standardized model.Methods Using the standardize model to carry out the application of standardized model of job training assessment for the practitioners in Blood Services.July 2016-June 2017,focusing on the standardize training materials and training standards to carry out the centralized training,establishing a unified teacher library of the province and the centralized training will be taught by those teachers,evaluating result by standardize theoretical test and the conformity standard,then evaluating and supervising the assessment results.Results 356 practitioners participated in centralized training,379 practitioners participated in the theoretical test,and 339 practitioners were qualified of the actual operation during these two years.The total qualified rate is 89.4%.There was no significant difference in the qualified rate between two years (P>0.05).Among them,the qualified rate of category Ⅰ personnel was 85.1%,category Ⅱ personnel was 98.7%,category Ⅲ personnel was 94.8%,and the qualified rate of category Ⅱand Ⅲ was higher than that of category Ⅰ (P<0.05).Conclusion Through the application of the standardized model to promote the standardization of education and training resource standard,and carry on standardized training evaluation as well as strictly grasp the examination and evaluation standards,it will be conducive to improving the quality of education and training,will also be conducive to improving the professional quality of employees and supply institutions.
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Objective To study the gene expression profiles of megakaryocytes(MKs) from human cord blood CD34+ cells in vitro expanded and to understand megakaryopoiesis at the molecular level. Methods CD34+ cells were isolated using density gradient centrifugation and magnetic activated cell sorting. The cells were cultured and stimulated with recombinant human TPO ( 100 ng/ml). After 12 days, the MKs fraction was separated using an anti-CD41 monoclonal antibody by immunomagnetic sorting. The gene expression profiles of MKs, non-MKs as well as meg-01 cells were studied by gene chip assay. THBSI, HOX A9,β-actin, lL-8,Annexin A6, FGF-8 were selected to validate the gene chip results by RT-PCR. Results A total of 116 genes between MKs and non-MKs cells were significantly different, 52 genes were up-regulated and 64 genes were down-regulated. In addition, 158 genes between MKs and meg-01 cells were significantly different, 71 genes were up-regulated and 87 genes were down-regulated. THBSI showed higher expression in MKs than in non-MKs. HOXA9 showed lower expression in MKs than in non-MKs. The expression of β-actin did not show any significant difference in MKs and non-MKs. IL-8 showed higher expression in MKs than in meg-01 cells, while ANXA6 showed lower expression in MKs than in meg-01 cells. The expression of FGF-8 did not show any significant difference between MKs and meg-01 cells. Conclusions MKs, non-MKs and meg-01 cells show different gene expression profiles. The regulatory genes include stress response genes,immune related genes, DNA synthesis and repair genes, metabolism genes, pro-onco genes and tumor suppressor genes.
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Objective To study the roles of TLR2 and TLR4 in the progress of invasive pulmonary aspergillosis(IPA) in experimental mice.Methods The mice were divided into three groups including the group of normal mice,the group of normal mice infected with A.fumigatus and the group of IPA mice.The mice were sacrificed at four time points(8 h,24 h,48 h and 72 h) after infection.The lung tissues from each group were collected for pathological analysis and RT-PcR for detecting the expression level of,TLR2,TLR4 and β-tublin.The ratio of density value of band of each PCR product on electrophoresis to the density value of β-tublin was used to evaluate the expression level of each gene like TLR2.TLR4 and TNF-α.Re-suits The pathological analysis showed the normal structure and no inflananatory reaction in the lungs in the group of normal mice.The infiltration of inflammatory cells,weak injuries and no germination of spore into hypha in the lungs of normal mice infected with A.fumigatus,and serious injuries like destruction of alveolar structure,bleeding,infiltration of inflammatory cells and germination of spore into hypha in the lungs of IPA mice.The expression level of TLR4 at 8 h,24 h,48 h and TNF-α at 24 h and 48 h were lower in IPA mice than that in healthy mice with infection(P<0.05).Conclusion There was low expression of TLR4 and TNF-α in IPA mice lung tissues.Typical pathological injuries in the lungs and germination of spore into hy-pha in IPA mice were observed by the microscope.
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Objective To observe the curative effect and prognosis of cough variance asthma(CVA) evoked by mycoplasma pneumonia(MP) treated by azithromycin combined with pumicort and bricasol.Methods 126 CVAs evoked by MP were divided randomly into two groups:the therapeutic group,were given azithromycin orally and inhaled pumicort and bricasol,the control group,were treated only by azithromycin orally.The remission rate and recurrence rate of cough between the two groups were compared.Results The remission rate and recurrence rate of cough of therapeutic group were 100% and 15.9% respectively while those of the control group were 28.6% and 60.3% respectively.The difference between two groups was significant.Conclusion Azithromycin combined with pumicort and bricasol can improve significantly the curative effect of CVA evoked by MP,decrease the recurrence and make for the prognosis.
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Objective To detect fetal RhCcEe genotype from fetal DNA in maternal plasma for noninvasive prenatal diagnosis.Methods DNA from maternal plasma sample was extracted by use of QIAamp DNA Kit. The existence of fetal DNA was confirmed by amplified fetal SRY gene. The fetal RhCcEe gene was amplified by polymerase chain reaction (PCR) from 30 pregnant maternal plasma. The results of fetal RhCcEe genotype were evaluated retrospectively by the serologic analysis of infant and pregnant woman RhCcEe phenotype.Results Among the 30 samples, 13 were the same phenotypes between mother and infant, 17 were different. When mother phenotypes were RhCC, cc, EE and ee homozygous, the deleted allele gene can be successfully amplified from mother plasma.Conclusion Noninvasive fetal RhCcEe genotyping is reliable. When the mother was homogyzous, genotyping the fetal CcEe alleles was very significant and useful for HDN (hemolysis disease of newborn) diagnosis and therapy.
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0.05),but the numbers of CD41+ cells and platelets were increased significantly(P
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0.05).Conclusion FCM assay can be used as a rapid and sensitive method for detecting platelet-associated antibody and platelet crossmatching.