Precision diagnosis and treatment of antibody-mediated rejection / 中华器官移植杂志

Based upon the underlying mechanism and pathological evidence of tissue injury of antibody-mediated rejection (AMR) , four etiological and symptomatic therapies were proposed for managing AMR, including etiological treatment of AMR including antibody-targeting, B cell or plasma cell-targeting therapies; strategies for preventing antibody-mediated endothelial damage: an inhibition of complement/antibody dependent cell-mediated pathways; anticoagulant & thrombolytic therapies for thrombotic microangiopathy secondary to endothelial damage ; anti-inflammatory therapies for acute/chronic vascular inflammation secondary to endothelial damage. Etiological treatment is essential for preventing and treating AMR while symptomatic measures, such as anticoagulant, thrombolytic and antiinflammatory therapies, are stressed. Finally the authors devised therapeutic strategies for AMR in 4 different patient groups of non-sensitized allograft recipients, sensitized allograft recipients, individuals with active AMR and those with chronic active AMR.

Self-management and family support among elderly patients with type 2 diabetes in community: based on semi-structured interviews / 中华全科医师杂志

Objective:To investigate the status of self-management and family support among elderly diabetic patients in community.Methods:Eight elderly patients with type 2 diabetes were interviewed in Xietu Community Health Service Center in Shanghai by semi-structured interviews from March 1st to March 15th, 2022. The interview outline focused on the impact of the disease on the patients' daily life, the status of disease self-management, and the support provided by their family. The contents of interviews were analyzed and extracted by Colaizz 7-step analysis method.Results:Of the 8 interviewees, there were 2 males and 6 females, aged (75.25±3.01)years old, with a disease course of (17.50±8.50)years. The interviews showed that there were three themes in the area of family support: difficulties in disease management (in terms of diet, exercise, medication, disease surveillance, health knowledge and quitting unhealthy habits), helpfulness of family support in management of above behaviors, differences between family support and support from others (including eating habits, information sharing, emotional support, patient trust, and continuity of support).Conclusions:The elderly diabetic patients in the community have some awareness of health management, but there is still much room for improvement. The supervision and support from family members can help patients improve their self-management and quality of life.

A Case Report of Multidisciplinary Diagnosis and Treatment of a Patient with Tuberous Sclerosis Complex and Multi-Organ Involvement / 罕见病研究

Tuberous sclerosis complex(TSC)is a rare genetic disease that can lead to benign dysplasia in multiple organs such as the skin, brain, eyes, oral cavity, heart, lungs, kidneys, liver, and bones. Its main symptoms include epilepsy, intellectual disabilities, skin depigmentation, and facial angiofibromas, whilst incidence is approximately 1 in 10 000 to 1 in 6000 newborns. This case presents a middle-aged woman who initially manifested with epilepsy and nodular depigmentation. Later, she developed a lower abdominal mass, elevated creatinine, and severe anemia. Based on clinical features and whole exome sequencing, the primary diagnosis was confirmed as TSC. Laboratory and imaging examinations revealed that the lower abdominal mass originated from the uterus. CT-guided biopsy pathology and surgical pathology suggested a combination of leiomyoma and abscess. With the involvement of multiple organs and various complications beyond the main diagnosis, the diagnostic and therapeutic process for this patient highlights the importance of rigorous clinical thinking and multidisciplinary collaboration in the diagnosis and treatment of rare and challenging diseases.

A Case Report of Multidisciplinary Diagnosis and Treatment of a Patient with Tuberous Sclerosis Complex and Multi-Organ Involvement / 罕见病研究

Tuberous sclerosis complex(TSC)is a rare genetic disease that can lead to benign dysplasia in multiple organs such as the skin, brain, eyes, oral cavity, heart, lungs, kidneys, liver, and bones. Its main symptoms include epilepsy, intellectual disabilities, skin depigmentation, and facial angiofibromas, whilst incidence is approximately 1 in 10 000 to 1 in 6000 newborns. This case presents a middle-aged woman who initially manifested with epilepsy and nodular depigmentation. Later, she developed a lower abdominal mass, elevated creatinine, and severe anemia. Based on clinical features and whole exome sequencing, the primary diagnosis was confirmed as TSC. Laboratory and imaging examinations revealed that the lower abdominal mass originated from the uterus. CT-guided biopsy pathology and surgical pathology suggested a combination of leiomyoma and abscess. With the involvement of multiple organs and various complications beyond the main diagnosis, the diagnostic and therapeutic process for this patient highlights the importance of rigorous clinical thinking and multidisciplinary collaboration in the diagnosis and treatment of rare and challenging diseases.

Application of seminar in addition to case-based learning in physical therapy practical teaching / 中国康复理论与实践

Objective To explore the effect of seminar based on case-based learning(CBL)in practical teaching of physical therapy. Methods From July,2021 to June,2022,42 rehabilitation therapy students for internships in Rehabilitation Medicine Center,the First Affiliated Hospital of Nanjing Medical University were non-directionally recruited,and random-ly divided into control group(n = 21)and experimental group(n = 21).The experimental group received instruc-tion using seminar and CBL,while the control group received CBL alone,for three months.The scores of theoret-ical and practical assessments were observed,and the satisfaction was investigated using a self-designed question-naire. Results The scores of both theoretical and practical assessments were better in the experimental group than in the control group(t>2.421,P<0.05);while the satisfaction was better in terms of motivating learning enthusiasm,enhanc-ing learning abilities,cultivating clinical reasoning skills,improving teacher-student communication,promoting teamwork,enhancing overall competence,and satisfying to the teaching in the experimental group than in the control group(χ2>6.667,P<0.05). Conclusion The combination of seminar with CBL would enhance the effect of practical teaching in physical therapy.

Effect of anterior capsule polishing on the visual quality after cataract surgery / 国际眼科杂志(Guoji Yanke Zazhi)

AIM: To evaluate the effect of anterior capsule polishing on visual quality after phacoemulsification.METHODS: Prospective randomized control study. A total of 65 patients(73 eyes)with age-related cataract who underwent phacoemulsification combined with intraocular lens(IOL)implantation in the Emergency General Hospital between November 2021 and June 2022 were included. These patients were randomly assigned to two groups, with one group(anterior polishing group)underwent anterior and posterior capsule polishing(30 cases, 35 eyes), while the other(control group)receive routine posterior capsule polishing(35 cases, 38 eyes). Best corrected visual acuity was observed at 1wk, 1, 3 and 6mo after operation. Area of anterior capsule orifice was measured at 3 and 6mo after operation. Meanwhile, posterior capsular opacification(P score), IOL tilt and decentration were recorded by Pentacam Scheimpflug system. In addition, wavefront aberration, Strehl ratio(SR)of point spread function(PSF)and modulation transfer function(MTF)were evaluated by OPD-Scan Ⅲ.RESULTS: At 1wk, 1, 3 and 6mo after operation, best corrected visual acuity in anterior polishing group is significantly better than that of control group(P&#x003C;0.05). There were no significant differences in area of anterior capsule opening, P score, IOL decentration, SR of PSF and MTF between two groups at 3 and 6mo after operation(P&#x003E;0.05). At 3mo follow-up, no significant differences in IOL tilt and wavefront aberration were measured between two groups either(P&#x003E;0.05). However, IOL tilt [(1.65±0.60)° vs.(2.34±0.43)°, P&#x003C;0.001] and wavefront aberration(0.03±0.01μm vs. 0.06±0.03μm, P&#x003C;0.001)in anterior polishing group were significant lower compared to control group at 6mo after operation.CONCLUSION: 360° polishing of anterior and posterior capsule during phacoemulsification can improve best corrected visual quality, with reduced IOL tilt, lower wavefront aberration and better visual quality.

Protective effect of intervention with cannabinoid type-2 receptor agonist JWH133 on pulmonary fibrosis in mice / 中华内科杂志

Objective: JWH133, a cannabinoid type 2 receptor agonist, was tested for its ability to protect mice from bleomycin-induced pulmonary fibrosis. Methods: By using a random number generator, 24 C57BL/6J male mice were randomly divided into the control group, model group, JWH133 intervention group, and JWH133+a cannabinoid type-2 receptor antagonist (AM630) inhibitor group, with 6 mice in each group. A mouse pulmonary fibrosis model was established by tracheal instillation of bleomycin (5 mg/kg). Starting from the first day after modeling, the control group mice were intraperitoneally injected with 0.1 ml of 0.9% sodium chloride solution, and the model group mice were intraperitoneally injected with 0.1 ml of 0.9% sodium chloride solution. The JWH133 intervention group mice were intraperitoneally injected with 0.1 ml of JWH133 (2.5 mg/kg, dissolved in physiological saline), and the JWH133+AM630 antagonistic group mice were intraperitoneally injected with 0.1 ml of JWH133 (2.5 mg/kg) and AM630 (2.5 mg/kg). After 28 days, all mice were killed; the lung tissue was obtained, pathological changes were observed, and alveolar inflammation scores and Ashcroft scores were calculated. The content of type Ⅰ collagen in the lung tissue of the four groups of mice was measured using immunohistochemistry. The levels of interleukin 6 (IL-6) and tumor necrosis factor α (TNF-α) in the serum of the four groups of mice were measured using enzyme-linked immunosorbent assay (ELISA), and the content of hydroxyproline (HYP) in the lung tissue of the four groups of mice was measured. Western blotting was used to measure the protein expression levels of type Ⅲ collagen, α-smooth muscle actin (α-SMA), extracellular signal regulated kinase (ERK1/2), phosphorylated P-ERK1/2 (P-ERK1/2), and phosphorylated ribosome S6 kinase type 1 (P-p90RSK) in the lung tissue of mice in the four groups. Real-time quantitative polymerase chain reaction was used to measure the expression levels of collagen Ⅰ, collagen Ⅲ, and α-SMA mRNA in the lung tissue of the four groups of mice. Results: Compared with the control group, the pathological changes in the lung tissue of the model group mice worsened, with an increase in alveolar inflammation score (3.833±0.408 vs. 0.833±0.408, P<0.05), an increase in Ashcroft score (7.333±0.516 vs. 2.000±0.633, P<0.05), an increase in type Ⅰ collagen absorbance value (0.065±0.008 vs. 0.018±0.006, P<0.05), an increase in inflammatory cell infiltration, and an increase in hydroxyproline levels [(1.551±0.051) μg/mg vs. (0.974±0.060) μg/mg, P<0.05]. Compared with the model group, the JWH133 intervention group showed reduced pathological changes in lung tissue, decreased alveolar inflammation score (1.833±0.408, P<0.05), decreased Ashcroft score (4.167±0.753, P<0.05), decreased type Ⅰ collagen absorbance value (0.032±0.004, P<0.05), reduced inflammatory cell infiltration, and decreased hydroxyproline levels [(1.148±0.055) μg/mg, P<0.05]. Compared with the JWH133 intervention group, the JWH133+AM630 antagonistic group showed more severe pathological changes in the lung tissue of mice, increased alveolar inflammation score and Ashcroft score, increased type Ⅰ collagen absorbance value, increased inflammatory cell infiltration, and increased hydroxyproline levels. Compared with the control group, the expression of α-SMA, type Ⅲ collagen, P-ERK1/2, and P-p90RSK proteins in the lung tissue of the model group mice increased, while the expression of type Ⅰ collagen, type Ⅲ collagen, and α-SMA mRNA increased. Compared with the model group, the protein expression of α-SMA (relative expression 0.60±0.17 vs. 1.34±0.19, P<0.05), type Ⅲ collagen (relative expression 0.52±0.09 vs. 1.35±0.14, P<0.05), P-ERK1/2 (relative expression 0.32±0.11 vs. 1.14±0.14, P<0.05), and P-p90RSK (relative expression 0.43±0.14 vs. 1.15±0.07, P<0.05) decreased in the JWH133 intervention group. The type Ⅰ collagen mRNA (2.190±0.362 vs. 5.078±0.792, P<0.05), type Ⅲ collagen mRNA (1.750±0.290 vs. 4.935±0.456, P<0.05), and α-SMA mRNA (1.588±0.060 vs. 5.192±0.506, P<0.05) decreased. Compared with the JWH133 intervention group, the JWH133+AM630 antagonistic group increased the expression of α-SMA, type Ⅲ collagen, P-ERK1/2, and P-p90RSK protein in the lung tissue of mice, and increased the expression of type Ⅲ collagen and α-SMA mRNA. Conclusion: In mice with bleomycin-induced pulmonary fibrosis, the cannabinoid type-2 receptor agonist JWH133 inhibited inflammation and improved extracellular matrix deposition, which alleviated lung fibrosis. The underlying mechanism of action may be related to the activation of the ERK1/2-RSK1 signaling pathway.

Clinical characteristics, treatment and vaccination effect of SARS-CoV-2 Omicron variant infection in kidney transplant recipients abroad / 中华器官移植杂志

The Omicron variant of Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is highly contagious, but compared to early virus typing has milder symptoms and better prognosis.This article reviewed and analyzed the clinical characteristics, treatment, prognosis and vaccination effect of Omicron infection in Kidney transplant recipients (KTR) in recent years.The clinical manifestations of KTR infected with Omicron and the comparison with early variants, the clinical characteristics of KTR infected with Omicron compared with the general population, the treatment of KTR infected with Omicron after foreign countries, the effect of vaccination on KTR to prevent Omicron and the measures to increase the ted of vaccine, the summary of the prevention and treatment of KTR infected with Omicron abroad and the experience and the shortcomings of the current researches were analyzed and summarized.

Factors associated with acute rejection after pediatric kidney transplantation: a single-center cohort study / 中华器官移植杂志

Objective:To summarize the incidence of acute rejection (AR) after pediatric kidney transplantation (KT) at a single center and examine its impact on graft/patient survival and risk factors for AR.Methods:This is a retrospective cohort study including pediatric recipients who underwent kidney transplantation in past 8 years.After excluding recipients of graft thrombosis within a week post-transplant and lost to follow-ups, a total of 143 cases were ultimately recruited and assigned into two groups of AR (n=29) and non-AR (n=114).Basic profiles of both donors and recipients and graft/patient survival rate were compared between two groups.Relative risk factors for AR episodes were also examined by Logistic regression.Results:Renal grafts for 130/143 cases (90.9%) were harvested from deceased donors and 120(83.9%) cases from children.Twenty-seven transplants (18.9%) were performed in infants and young recipients aged < 3 years.During a median follow-up of 33 months, 34 AR episodes occurred in 29(20.3%) patients.Rate of re-transplantation (27.6% vs. 7.9%), pediatric donor (96.5% vs. 80.7%) and rabbit anti-human thymocyte globulin (rATG) induction (79.3% vs. 36%) were significantly higher in AR group than non-AR group ( P=0.007, P=0.046, P<0.001).Multivariate regression analysis indicated that basiliximab induction caused a significant reduction in the risk of AR incidence as compared with rATG induction (odds ratio 0.13, 95% confidence interval 0.04-0.43, P<0.001).The median time of AR incidence was 1.3 months post-transplantation and 23 episodes (67.6%) were confirmed by biopsy.After anti-rejection treatment, 52.9%(n=18) of the cases achieved a full recovery and 38.3% (n=13) had improved graft function.However, 3 cases (8.8%) developed irreversible graft failure.The 1/3-year graft survival rates were significantly lower in AR group than those in non-AR group (75.3% vs. 95.2%, 68.4% vs. 90.4%, P=0.01), and there was no significant difference in 1-and 3-year patient survival rates between two groups. Conclusions:The incidence of AR is relatively high in pediatric renal transplantation, which has an impact on graft survival.Basiliximab induction can effectively reduce the risk of AR.

Recent advances in preclinical research of renal xenotransplantation and selection of potential recipients in the future / 中华器官移植杂志

After continuous efforts from generations of transplant surgeons, kidney transplantation (KT) has become an optimal treatment for end-stage renal disease.However, an imbalance between supply and demand of organs has always restricted the development of KT.For this clinical dilemma, xenotransplantation is expected to become one practical alternative for alleviating organ shortage.This review summarized recent literature reports of kidney xenotransplantation and the latest cases of pig-to-human kidney and heart transplantations.Also clinical transformations and applications of kidney xenotransplantation were discussed.

Comparison of image quality based on deep-learning image reconstruction and iterative reconstruction algorithm for dual-energy CT: a phantom and animal-model study / 中华放射学杂志

Objective:To investigate the impact of the deep learning reconstruction algorithm TrueFidelity TM for Gemstone Spectral Imaging (TF-GSI) and the adaptive statistical iterative reconstruction algorithm (ASiR-V, hereinafter referred to as ASiR-V) based on phantom and animal models on the image quality of dual-energy CT images. Methods:GE Revolution Apex CT was used to scan the ACR 464 phantom and a mouse model of gastric cancer with lymph node metastasis ( n=16). TF-GSI and ASiR-V were separately used to reconstruct middle and high-grade images (TF-GSI-M, TF-GSI-H, ASiR-V-50%, and ASiR-V-100%) on the phantom and mouse based on virtual monoenergetic images at 70 keV. The task transfer function (TTF) of bone and acrylic, image noise power spectrum (NPS), and detectability index (d′) of the phantom images were evaluated. One-way ANOVA analysis was used to compare the image noise, signal-to-noise ratio (SNR) and contrast-to-noise ratio (CNR) for brain and liver on images of mice. The consistency of the two reconstruction-algorithm images (TF-GSI-H and ASiR-V100%) in the detection of small lesions by two radiologists (A and B) was evaluated using kappa test. Results:In terms of the phantom, the TF-GSI-H group had the best performance in TTF, NPS, and d′. Compared to ASiR-V-100%, the TTF50% of bone and acrylic in the TF-GSI-H group increased by 2.4% and 8.9%, respectively; the NPS peak decreased by 54.1%, compared to ASiR-V-100%; the d′ of bone and acrylic in the TF-GSI-H group relative to ASiR-V-100% increased by 52.7% and 59.5%, respectively. The TF-GSI group had reduced image noise compared to the ASiR-V group, and both SNR and CNR of the two tissues increased, but the differences between the groups were not statistically significant (all P>0.05). The two reconstruction-algorithm images showed good consistency in image evaluation by the two radiologists (A, Kappa=0.875, P<0.001; B, Kappa=0.625, P=0.012). In terms of the detection of micro-metastases in mice, the TF-GSI group outperformed the ASiR-V group (average accuracy: 83.5% vs 71.9%; average sensitivity: 77.8% vs 61.2%; average specificity: 85.7% vs 85.7%). Conclusion:Compared with iterative reconstruction algorithm, the DLIR algorithm showed improved spatial resolution, reduced image noise, and enabled detectability of micro-lesion for images from dual-energy CT.

Clinical advantages of transumbilical single-site laparoscopy in surgery for giant ovariotubal cysts / 中国医师杂志

Objective:To observe the efficacy and safety of single-port laparoscopy for giant ovariotubal cysts.Methods:38 patients with giant ovarian and fallopian tube cysts in Ruijin Hospital Affiliated to Shanghai Jiaotong University Hospital from January 2018 to June 2019 were retrospectively analyzed. They were divided into transumbilical single-port laparoscopy group (18 cases) and traditional laparoscopy group (20 cases). The perioperative related indexes such as operation time, intraoperative bleeding and the number of analgesic cases were compared between the two groups.Results:All 38 patients successfully completed the operation without conversion to laparotomy, and no auxiliary hole was added in the single-port laparoscopy group; There were no postoperative complications and no cystic fluid leakage. In the single-port laparoscopy group, 18 patients were satisfied with the concealment of umbilical scar. There was no statistically significant difference in operation time [(51.67±13.72)min vs (55.50±14.59)min], intraoperative blood loss [(52.22±24.38)ml vs (61.50±28.88)ml] and first postoperative anal exhaust time [(25.77±8.59)h vs (27.60±6.67)h] between single-port laparoscopy group and traditional laparoscopy group (all P>0.05); The number of cases requiring postoperative analgesia in the single-port laparoscopy group (2 cases vs 12 cases) was less than that in the traditional laparoscopy group ( P<0.05); The out of bed activity time [(20.95±3.65)h vs (26.95±5.43)h] and postoperative discharge time [(3.11±0.68)h vs (4.30±1.21)h] were shorter than those in the traditional laparoscopy group (all P<0.05). All 38 patients were followed up in the gynecological clinic for 6-24 months. The incision healed well without recurrence. Conclusions:Transumbilical single-port laparoscopic surgery for giant ovarian and fallopian tube cysts is reliable and safe when the possibility of malignant ovarian and fallopian tube tumors was excluded before operation.

Renal artery stenosis in children after pediatric donor kidney transplantation: a report of five cases / 中华器官移植杂志

Objective:To explore the clinical features of transplanted renal artery stenosis after pediatric donor kidneys in children.Methods:We retrospectively summarized the clinical data in five cases of transplanted renal artery stenosis undergoing deceased pediatric donor kidney transplantation from May 1, 2014 to June 30, 2021.Donor/receptor characteristics, diagnosis, treatment and prognosis were recorded.The median follow-up period was 29 months.The median age of five donors and recipients was 9 and 132 months respectively.En bloc renal allograft( n=2)and single kidney transplantation( n=3)were performed.End-to-side anastomosis was performed for renal arteries.The median diagnostic time of renal artery stenosis was 10(3-60)months post-transplantation.Except for one 3-year-old recipient with an earlier onset of stenosis, four stenotic cases during a rapid growth period had a maximal height increase of 30 cm post-transplantation.Three of them had a history of surgery at graft site, including previous kidney transplantation( n=1)and transplant urinary tract reconstruction( n=2). All five cases had hypertension and two showed an elevated serum level of creatinine.Ultrasound indicated a significantly elevated flow rate of >300 cm/s( n=4)and CTA/MRA indicated that the degrees of stenosis varied from 50% to 95%( n=5). Results:After balloon dilatation, stenosis either improved( n=2)or relapsed( n=2). Further stenting succeed( n=1)or failed( n=1). One case of stenosis was relieved partially after 6-month observation without any invasive treatment. Conclusions:As a serious complication, transplant renal artery stenosis is common after pediatric donor kidney transplantation.Too small size in donor kidney and rapid recipient growth may be specific risk factors.After diagnosis, balloon dilation is a preferred treatment.Stent placement should be cautiously employed.

Analysis of the long-term outcomes of different secondary surgeries for recurrent stress urinary incontinence after Burch colposuspension / 中华妇产科杂志

Objective:To analyze the long-term outcomes of different secondary surgeries in women with recurrent stress urinary incontinence (SUI) after Burch colposuspension.Methods:Between February 2004 to February 2010, five women with recurrent SUI after Burch colposuspension in Peking Union Medical College Hospital were retrospectively followed up, and the long-term outcomes of secondary surgeries were analyzed. Subjective cures of Burch colposuspension and secondary surgeries were assessed by patients′ self-reported incontinence symptoms and patient global impression of improvement questionnaire; objective cure, improvement or failure were determined by 1-hour pad test.Results:Three women underwent tension-free vaginal tape-retropubic (TVT) as the secondary surgery, one underwent tension-free vaginal tape-obturator (TVT-O), and one underwent single-incision tension-free vaginal tape-Secur (TVT-Secur). The follow-up period of five women was (14.6±2.4) years (range: 10.8 to 16.9 years). Three women undergoing TVT secondary surgery were subjectively cured; while the other two women undergoing TVT-O or TVT-Secur were not subjectively cured, but the woman undergoing TVT-O was objectively improved.Conclusions:It is feasible for women with recurrent SUI after Burch colposuspension to receive the secondary surgery. Our limited data suggests that TVT could be considered.

Exploration of complement-dependent cytotoxicity technology for GTKO/hCD55 genetically engineered pig-to-human xenotransplantation / 中华器官移植杂志

Objective:To compare the inhibitory effect of human CD55(hCD55)expressed on porcine peripheral blood mononuclear cells(PBMC)on rabbit complement-and human complement-dependent cytotoxicity(CDC).Methods:Three α1, 3-galactosyltransferase gene knockout(GTKO)pigs from the same strain were selected.Two were transferred with hCD55 gene.According to the expression level of hCD55, the animals were divided into three groups of GTKO, GTKO/hCD55 Low(low-expression of hCD55)and GTKO/hCD55 High(high-expression of hCD55). After PBMC from these pigs were incubated with complement-inactivated pooled human serum(20 cases), rabbit complement-or human complement-dependent cytotoxicity and binding of antibodies(IgM/G)to pig PBMC were detected by flow cytometry. Results:No significant difference existed in binding of human serum xenoreactive antibodies to PBMC from three groups.The cytotoxicity to GTKO pig PBMC mediated by rabbit complement or human complement were 98.97%±0.50% and 82.73%±3.20% respectively.Both values were quite high.Compared with GTKO group, a low expression of hCD55 had no significant inhibitory effect on rabbit complement-dependent cytotoxicity(97.07%±2.25% vs. 98.9%±0.50%, P=0.2 267) while a high expression of hCD55 exerted a mild inhibitory effect on rabbit complement-dependent cytotoxicity(81.70%±5.86% vs. 98.9%±0.50%, P=0.0 355). Differently, a low expression of hCD55 had a potent inhibitory effect on human complement-dependent cytotoxicity(23.83%±3.53% vs. 82.73%±3.20%, P<0.0 001). Compared with hCD55 low-expression group, a high expression of hCD55 had a further inhibitory effect on human complement-dependent cytotoxicity(2.79%±0.45% vs. 82.73%±3.20%, P=0.009), attaining the level of negative control group.The inhibitory effect of low/high expression of hCD55 on human complement-mediated CDC was significantly better than that on rabbit complement-mediated CDC. Conclusions:Compared with traditional CDC counterpart using rabbit complement, modified CDC technology of commercial standard human complement is recommended for evaluating the regulatory effect of hCD55 expressed on cell surface from GTKO/hCD55 genetically engineered pigs.It thus provides experimental rationales for establishing a novel CDC experimental system of effectively evaluate the function of hCD55 after xenotransplantation.

Primary care for atrial fibrillation patients with anticoagulation therapy in China: status quo and future perspective / 中华全科医师杂志

With the increasing prevalence of atrial fibrillation (AF), the incidence of its complications, such as ischemic stroke and thromboembolism is also increasing. According to the two-way referral system proposed by health authorities, AF management should be carried out mainly in primary care settings;and studies show that general practitioners play an indispensable role in AF management. At present,however,the inappropriate anticoagulation,AF complications and risk awareness are three major problems in the primary care of AF management in China. This article reviews the status quo and future prospect of AF management in primary care to provide suggestions for better management of AF in primary care level.

Treatment experience of cytomegalovirus infection in pediatric kidney transplant patients / 中华器官移植杂志

Objective:To summarize the clinical characteristics and treatment of cytomegalovirus(CMV)infection in pediatric kidney transplant patients.Methods:From May 2014 to July 2021, a total of 9 cases(8.65%)of 104 pediatric kidney transplant recipients were diagnosed with CMV infection in our centre.Retrospective data was collected for these 9 paediatric recipients.The clinical characteristics of the disease, treatment data and outcomes were summarized.Results:The median age of the 9 children was 10 years(0.25-15 years), 6 of whom were treated with polyclonal antibody for immunity induction.CMV IgG was negative in 4 children before renal transplantation.Only one patient received anti-CMV prophylaxis.The median time from transplant to the diagnosis of CMV infection was 22(7-15)days.Among the 9 children, 7 had fever, pneumonia and diarrhea, 2 had no typical symptoms, three patients were complicated with viral, bacterial or fungal infections.Acute rejection occurred in 3 patients at the same time as CMV infection or after CMV DNA turned negative.Nine patients were cured and discharged after ganciclovir or valganciclovir treatment.Median time of CMV DNA negative transformation was 32(17-90)days.Conclusions:Pediatric transplant recipients are at particularly elevated risk of CMV disease.Antiviral prophylaxis should be initiated early after transplantation.

Medium-term outcomes of kidney transplantation from old-aged deceased donors: a single-center retrospective analysis / 中华器官移植杂志

Objective:To summarize the medium-term outcomes of single kidney transplantation from senile deceased donors aged above 65 years.Methods:Forty-three kidney recipients from donors aged above 65(old-aged donor group, OAD) and 43 kidney recipients of the same age and gender from donors aged 18 to 49 years(standard-criteria donor group, SCD) were retrospectively reviewed.The survival outcomes of patients and grafts, renal functions, the incidence of delayed graft function(DGF)and other complications were recorded within the 3-year follow-up post-transplantation.Results:The 3-year patient survival rates were 95.3% both in OAD and SCD and the 3-year death-censored graft survival rates 92.7% and 97.6% respectively.The serum levels of creatinine were significantly higher in OAD than that in SCD( P<0.05). And lower estimated glomerular filtration rate(eGFR)was found in OAD as compared with SCD( P<0.05). No significant difference existed in the incidence of DGF(OAD 20.9% and SCD 18.6%, P>0.05), acute rejection (OAD 4.7% and SCD 2.3%, P>0.05)or proteinuria(OAD 27.9%and SCD 14.0%, P>0.05). Conclusions:Single kidney transplantation from old-aged deceased donors may achieve excellent medium-term survival outcomes of patients and grafts.It can expand the donor pool though kidney functions were not as good as those of SCD.

A report of 5 cases of post-transplantation diabetes mellitus after kidney transplantation in children / 中华器官移植杂志

Objective:To summarize the clinical characteristics and therapeutic drug selection of post-transplantation diabetes mellitus(PTDM)after kidney transplantation in children.Methods:From May 2014 to March 2021, a total of 5 cases(5.38%)of 93 paediatric kidney transplant recipients with a median follow-up period of 34 months were diagnosed with PTDM in our centre.Retrospective data analysis was performed for these 5 paediatric recipients.The characteristics of the disease, treatment data and outcomes were summarized.Among the five paediatric recipients, one was male and four patients were female, ranging the age from 12 to 17 years.All recipients received a tacrolimus-based immunosuppressive regimen with prednisone discontinued no later than 3 months after kidney transplant.Results:The onset of PTDM ranged from 1 month to 46 months(median: 17 months)after transplantation.The blood glucose of two children returned to normal gradually after tacrolimus conversion to cyclosporine, with one of them was given insulin temporarily.Three children received oral hypoglycaemic agents, including one received acarbose, one received metformin, and one received metformin combined with acarbose.After a median follow-up of 6 months, the levels of blood glucose in five children were stable, and there was no significant change in serum creatinine and urine protein.Conclusions:The treatment of PTDM in children should be individualized with considering of age, gender and immunosuppressive regimen. Switch from tacrolimus to cyclosporine is effective. Metformin or other hypoglycemic agentsis helpful when tacrolimus is maintained.

Value of Transperineal Ultrasound in Short-term Evaluation of Pelvic Organ Prolapse after Transvaginal Mesh Implantation / 中国医学科学院学报

Objective To observe the patients after transvaginal mesh(TVM)implantation surgery by using transperineal ultrasound(TPUS),compare the diagnosis of pelvic organ prolapse(POP)by TPUS and clinical examination[according to the Pelvic Organ Prolapse Quantification(POP-Q)system published by the International Continence Society],and to explore the role of ultrasound in postoperative evaluation as well as the high-risk factors of post-surgery POP recurrence. Methods This is a retrospective study based on the POP-Q records and TPUS data sets of patients within 6 months after TVM surgery during September 2013 and November 2019.The diagnostic results of TPUS and POP-Q were compared.The incidences of hiatal ballooning and levator avulsion were separately compared between the TPUS group and the control group. Results A total of 147 patients were enrolled.The Kappa values between TPUS and POP-Q in the diagnosis of anterior and posterior compartment POP were 0.268(