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1.
Organ Transplantation ; (6): 669-675, 2023.
Article in Chinese | WPRIM | ID: wpr-987117

ABSTRACT

Objective To evaluate the effect of body mass index (BMI) on early prognosis of the recipients after lung transplantation. Methods Clinical data of 307 lung transplant recipients were retrospectively analyzed. According to preoperative BMI, all recipients were divided into the low (BMI <18.5 kg/m2, n=114), normal (18.5 kg/m2≤BMI <24 kg/m2, n=145) and high (BMI≥24.0 kg/m2, n=48) BMI groups, respectively. Baseline data including age, sex, blood type, BMI, preoperative complications, preoperative pulmonary hypertension, and intraoperative use of extracorporeal membrane oxygenation (ECMO) of all recipients were compared among three groups. The survival rate of all recipients was estimated by Kaplan-Meier curve and the survival curve was delineated. The differences of survival rate were analyzed by log-rank test. The 30-, 90- and 180-d mortality risk of all recipients after lung transplantation in different BMI groups was compared by multivariate Cox regression analysis. Results There were significant differences in age and sex of recipients among three groups (both P<0.05). There was a significant difference regarding the 180-d survival rate after lung transplantation among different BMI groups (P<0.05). Multivariate Cox regression analysis showed that the 90-d mortality risk after lung transplantation in the high BMI group was 2.295 times higher than that in the normal BMI group [hazard ratio (HR) 2.295, 95% confidence interval (CI) 1.064-4.947, P=0.034]. In the high BMI group, the 180-d mortality risk after lung transplantation was 2.783 times higher compared with that in the normal BMI group (HR 2.783, 95%CI 1.333-5.810, P=0.006), and the 180-d mortality risk in the low BMI group was 2.181 times higher than that in the normal BMI group (HR 2.181, 95%CI 1.124-4.232, P=0.021). Conclusions Compared with the recipients with normal BMI, their counterparts with high and low preoperative BMI have higher mortality risk early after lung transplantation. Adjusting preoperative BMI to normal range contributes to improving early prognosis of lung transplant recipients.

2.
Organ Transplantation ; (6): 183-2023.
Article in Chinese | WPRIM | ID: wpr-965040

ABSTRACT

Due to long-term use of immunosuppressive agents, solid organ transplant recipients (SOTR) belong to high-risk populations of multiple pathogenic infection, including SARS-CoV-2. In addition, SOTR are constantly complicated by chronic diseases, such as hypertension and diabetes mellitus, etc. After infected with SARS-CoV-2, the critically ill rate and fatality of SOTR are higher than those of the general population, which captivates widespread attention from experts in the field of organ transplantation. Omicrone variant is currently the significant pandemic strain worldwide, rapidly spreading to more than 100 countries worldwide and causing broad concern. According to the latest international guidelines on the diagnosis and treatment of SARS-CoV-2 infection and relevant expert consensus in China combined with current domestic situation of SARS-CoV-2 pandemic and China's "diagnosis and treatment regimen for SARS-CoV-2 infection (Trial Version 10)", the epidemiology, clinical manifestations and prognosis, diagnosis, clinical classification and treatment of SARS-CoV-2 infection were briefly reviewed.

3.
Chinese Journal of Blood Transfusion ; (12): 365-372, 2023.
Article in Chinese | WPRIM | ID: wpr-1004828

ABSTRACT

RhD antigen is the most immunogenic antigens in the Rh blood group system and can cause hemolytic transfusion reactions (HTRs) and severe hemolytic disease of the fetus and newborn (HDFN). RhD-negative red blood cell (RBC) is a scarce resource in China, and RhD-negative patients face challenges in timely blood transfusion. For different populations that were initially negative for RhD (saline method), what techniques should be used, how to issue test report and when should " Asian type" DEL (RHD*01EL.01, c.1227G>A) be identified are the confusions of blood transfusion workers in the process of clinical blood supply. More than 200 technical experts discussed and reached a consensus on blood transfusion compatibility testing for Chinese population. The purpose of the consensus is to further standardize and refine the RhD blood group testing strategy, provide technical support for achieving accurate blood transfusion for patients with different RhD blood groups, continuously improve the levels of prevention and treatment for RhD-HTRs and RhD-HDFN, and lay a foundation for the future development of industry standards concerning RhD blood group testing strategy.

4.
Organ Transplantation ; (6): 838-846, 2023.
Article in Chinese | WPRIM | ID: wpr-997817

ABSTRACT

Objective To explore heterogeneous subtypes of psychological and behavioral adaptation characteristics of pediatric recipients after liver transplantation and the characteristics differences of different types of children after liver transplantation. Methods Seven hundred and forty-one children who underwent living-related liver transplantation were enrolled. The self-designed general information questionnaire, Chinese version of 5-Item World Health Organization Well-Being Index (WHO-5) and the parent-report version of the Strengths and Difficulties Questionnaire (SDQ) were filled out by their guardians. The scores of five dimensions of SDQ were used as the manifest variables of the model. The classification model of psychological and behavioral adaptation characteristics of pediatric recipients after liver transplantation was constructed by latent profile analysis. The latent categories of psychological and behavioral adaptation characteristics of pediatric recipients after liver transplantation were analyzed. The influencing factors of latent categories were analyzed by univariate analysis and logistic regression model. Results There were three latent categories of psychological and behavioral adaptation characteristics of pediatric recipients after liver transplantation, including peer communication problem group (n=302), psychological and behavioral adaptation group (n=145) and psychological and behavioral adjustment difficulty group (n=294). The first two groups were merged into the psychological and behavioral health group (n=447), which had significant differences in the five dimensions and the total score of difficulties of SDQ compared with the psychological and behavioral adjustment difficulty group (n=294) (all P<0.001). Logistic regression analysis showed that age≤5 years old, primary disease of non-cholestatic liver disease, stem family were the risk factors for psychological and behavioral adjustment difficulties in pediatric recipients after liver transplantation. Female gender, high education levels of parents and high WHO-5 score of guardians were the protective factors for psychological and behavioral adjustment difficulties in pediatric recipients after liver transplantation (all P<0.05). Conclusions The psychological and behavioral adaptation characteristics of pediatric recipients after liver transplantation are heterogeneous. Medical staff should pay extensive attention to different characteristics of pediatric recipients after liver transplantation with different psychological and behavioral adaptation categories and adopt targeted screening and intervention strategies, aiming to improve psychological and behavioral adaptation outcomes of pediatric recipients after liver transplantation.

5.
Chinese Journal of Organ Transplantation ; (12): 197-202, 2023.
Article in Chinese | WPRIM | ID: wpr-994653

ABSTRACT

Since an outbreak of coronavirus disease 2019, there have been more than 664 million confirmed cases and more than 6.7 million deaths worldwide.The Omicron variant discovered in November 2021 has become a dominant variant in China.Compared with the general population, Omicron infection mainly presents short-term upper respiratory symptoms followed by quick recovery; solid organ transplant recipients have the characteristics of a high incidence of severe disease and high mortality after infection, and the incidence of secondary infection and rebound positivity is significantly higher than that of the general population.This review focused upon preventive strategies of solid organ transplant recipients from the perspectives of the characteristics of organ transplant recipients, general preventive strategies, vaccination and long-acting neutralizing antibodies.

6.
Article | IMSEAR | ID: sea-222175

ABSTRACT

We report a case of Idiopathic non-lupus full-house nephropathy (NLFHN) in a 39-year-old male who had a full-house pattern of immunofluorescence study without overt systemic lupus erythematosus after a follow-up of more than 2 years. The incidence of detection of cases of NLFHN is increasing in native kidney biopsy and is critical to report as they have poor clinical outcomes. To the best of our knowledge, it is the first case of post-transplant renal biopsy and needs to be reported to plan the treatment protocol for such transplant patients.

7.
Journal of Prevention and Treatment for Stomatological Diseases ; (12): 272-277, 2022.
Article in Chinese | WPRIM | ID: wpr-920551

ABSTRACT

Objective@#To evaluate the therapeutic effect of dental autotransplantation with the application of digital design combined with 3D printing of donor tooth models and recipient alveolar fossa model preoperatively.@*Methods@# Twelve cases that could not be retained due to tooth fracture or extensive absorption of alveolar bone were recruited in the study. Cone-beam computed tomography (CBCT) data were imported into Mimics software for digital design, and the best-matched third molar was selected as the donor tooth. Replicas of the donor teeth and the recipient socket were printed out with three-dimensional (3D) printing technologies as a simulation model for recipient tooth socket preparation. During tooth autotransplantation, preparation of the recipient tooth socket and the donor tooth were guided by the 3D-printed replicas sequentially. Then, the donor tooth was implanted into the recipient tooth pocket. Patients were followed up at 3, 6 and 12 months after the operation, with CBCT examination to evaluate the status of bone reconstruction and periodontal ligaments at each time point. @*Results@#Twelve patients were transplanted with an autogenous third molar with the apical foramen completely closed. Among them, 7 patients had alveolar fossa infection before the operation, of which 1 had extensive resorption of the alveolar bone due to the infection. All 12 patients recovered well after the operation and were followed up for at least 12 months. In total, 11 caseswere successful in tooth autotransplantation with normal mastication, and 1 case had root resorption 14 months postoperation.@*Conclusion@#Digital design combined with 3D printing technology can assistin the selection of thebest-matched donor tooth and preparation of the recipient socket before tooth transplantation proceduresand reduce the extra-alveolar exposure time of the donor tooth and number of trial placementsintothe alveolar fossa. Thus, this combined strategy can effectively improve the outcome of dental autotransplantation.

8.
Chinese Journal of Organ Transplantation ; (12): 298-302, 2022.
Article in Chinese | WPRIM | ID: wpr-933690

ABSTRACT

Objective:To explore the safety of inactivating coronavirus disease 2019(covid-19)vaccine in liver transplantation(LT)recipients.Methods:Retrospective analysis was performed for clinical data of 151 LT recipients from March 2003 to October 2019.They had stable conditions and completed the course of covid-19 vaccine.Frequencies of pain at injection site, fatigue, headache and pruritus after vaccination were recorded.The safety profiles were compared between recipients with and without local and general adverse reactions after vaccination.At the same time, recipients completing two doses of covid-19 vaccines were grouped.According to vaccine companies, they were classified into Sinovac Biotech Ltd and Beijing Biological.Based upon more than or less than 60 years, they were grouped into <60 years and ≥60 years.The safety profiles of inactivating COVID-19 vaccine were compared in subgroups.Results:Among 151 eligible LT recipients, 98 of them were in group of age <60 years and 53 in group of age >60 years.The median period between vaccination and LT was 8.44(4.37, 12.39)years and the median concentration of tacrolimus 2.5(1.8, 3.9)ng/L.Eighty-three cases completed two doses of Sinovac Biotech Ltd(Sinovac Biotech Ltd group)and 40 cases Beijing Biological(Beijing Biological group); 14 cases had combined course of Sinovac Biotech Ltd and Beijing Biological, four recipients were vaccinated with inactivated vaccine from other companies and ten recipients did not know their inactivated vaccine' companies.After immunization, 24/151(15.9%)recipients had a local and general adverse reaction.The prevalence of pain at injection site, fatigue, headache and pruritus was 9.9%( n=15), 5.2%( n=8), 1.3%( n=2)and 0.7%( n=1)respectively.No significant differences existed in age( P=0.602), gender( P=0.752), period after LT( P=0.890), trough concentration of tacrolimus( P=0.377)or versions of covid-19 vaccine( P=0.582)between 24 cases with general adverse reaction and 127 without.Local and general reactions occurred in 16/83(19.3%)in Sinovac group and 5/40(12.5%)in Beijing Biological.There was no significant inter-group difference( P=0.769). There were 98 cases(64.9%)in <60 years group, 17 cases(17.3%)had local and general reaction, 53 cases(35.1%)in ≥60 years group and 7 cases(13.2%)had a local and systemic reaction.There was no significant inter-group difference( P=0.507). Conclusions:Covid-19 vaccine is safe for long-term survival LT recipients with normal liver function.Few participants present with mild fatigue and pain at injection site.

9.
Chinese Journal of Organ Transplantation ; (12): 352-357, 2022.
Article in Chinese | WPRIM | ID: wpr-957855

ABSTRACT

Objective:To explore the impact of graft recipient weight ratio(GRWR)on pediatric whole liver transplantation in infants aged under 1 year.Methods:From January 2014 to December 2019, clinical data were retrospectively reviewed for 140 children aged under 1 year with whole liver transplantation.They were divided into 3 groups of low GRWR(GRWR<2.5%, 48 cases), middle GRWR(2.5%≤GRWR<5%, 73 cases)and high GRWR(GRWR≥5%, 19 cases). Basic profiles, major postoperative complications and survival rate of graft/recipient were compared.Results:There were 62 males and 78 females with an average age of (7.34±1.81)months and an average weight of(6.81±1.09)kg.The median GRWR was 3.27%(1.33%~8.12%). The higher level of GRWR, the greater age, weight and graft weight of donor in three groups and there was statistical difference ( P<0.05); operative duration, postoperative ICU stay and hospital stay were longer in low GRWR group than those in middle GRWR group and there was statistical difference( P<0.05); The incidence of postoperative hepatic artery thrombosis was higher in low GRWR group than that in middle GRWR group(31.3%vs 8.2%)and there was statistical difference( P<0.05); 4 cases of small-for-size syndrome occurred in low GRWR group, it was significantly different from the other two groups and there was statistical difference( P<0.05); the median follow-up period was(50.7±23.4)months.The survival rates of grafts at 3-month and 1/5-year were 89.6%, 91.8%, 100%; 87.5%, 87.7%, 100%; 87.5%, 87.7%, 100%and there was no inter-group difference( P>0.05). The survival rates of recipients at 3 months, 1 year and 5 years post-operation were 93.8%, 91.8%, 100%; 91.7%, 87.7%, 100%; 91.7%, 87.7%, 100%and there was no inter-group difference( P>0.05). Conclusions:Different from pediatric living donor transplantation, GRWR≥5%does not affect the survival rate of recipient/graft during whole liver transplantation.And GRWR<2.5%may boost the postoperative incidence of hepatic artery thrombosis and small liver syndrome.

10.
Organ Transplantation ; (6): 404-2022.
Article in Chinese | WPRIM | ID: wpr-923589

ABSTRACT

Currently, multiple difficulties exist in clinical liver transplantation, such as shortage of donor liver, increasing quantity of patients waiting for liver transplantation and lack of matching donors, etc. Some children and adult patients have little chance of undergoing liver transplantation, which also limits the development of liver transplantation. In this context, split liver transplantation emerges, in which 1 donor liver can be applied to 2 or even more recipients. It may effectively increase the utilization rate of donor liver and alleviate the shortage of donor liver. With the development of split liver transplantation, the survival rate of split liver transplantation is comparable to that of total liver transplantation. Multiple transplantation centers have routinely adopted split liver transplantation. In this article, the development of split liver transplantation, the selection and matching of donors and recipients, the split and reconstruction techniques of donor liver and postoperative complications were reviewed, aiming to provide reference for subsequent development of split liver transplantation in clinical practice and increase the chance of liver transplantation for more patients diagnosed with end-stage liver diseases.

11.
Organ Transplantation ; (6): 296-2022.
Article in Chinese | WPRIM | ID: wpr-923573

ABSTRACT

In recent decade, pediatric liver transplantation has developed rapidly in China due to the improvement of surgical techniques and postoperative management, which has been applied from several domestic liver transplantation centers to more than 10 provinces, cities and autonomous regions. The annual quantity of pediatric liver transplantation has exceeded 1 000 for 3 consecutive years, ranking first across the world. The technique of pediatric liver transplantation has been gradually oriented to precision medicine. The development of pediatric liver transplantation mainly focuses on the "grafts". In this article, the development characteristics and trends of pediatric liver transplantation were elucidated from the perspectives of different types of liver transplantation that expanded the source of donor liver, including split liver transplantation, auxiliary liver transplantation, Domino liver transplantation and liver transplantation with hyper-reduced grafts, as well as the application of minimally invasive surgical and microsurgical anastomosis techniques in pediatric liver transplantation, which represented by laparoscopic surgery and Da Vinci surgical system, aiming to provide reference for further improving the long-term survival rate of grafts and the quality of life of the recipients.

12.
Clinics ; 77: 100042, 2022. tab, graf
Article in English | LILACS-Express | LILACS | ID: biblio-1404294

ABSTRACT

Abstract Background: The Coronavirus 19 (COVID-19) pandemic has dramatically impacted liver organ transplantation. The American Society of Transplantation recommends a minimum of 28 days after symptom resolution for organ donation. However, the exact time for transplantation for recipients is unknown. Considering that mortality on the waiting list for patients with MELD >25 or fulminant hepatitis is higher than that of COVID-19, the best time for surgery after SARS-CoV-2 infection remains undetermined. This study aims to expand the current knowledge regarding the Liver Transplantation (LT) time for patients after COVID-19 and to provide transplant physicians with essential decision-making tools to manage these critically ill patients during the pandemic. Methods: Systematic review of patients who underwent liver transplantation after diagnosis of COVID-19. The MEDLINE, PubMed, Cochrane, Lilacs, Embase, and Scielo databases were searched until June 20, 2021. The MESH terms used were "COVID-19" and "Liver transplantation". Results: 558 articles were found; of these 13 articles and a total of 18 cases of COVID-19 prior to liver transplantation were reported. The mean age was 38.7±14.6, with male prevalence. Most had mild symptoms of COVID. Five patients have specific treatment for COVID-19 with convalescent plasm or remdesivir/oseltamivir, just one patient received hydroxychloroquine, and 12 patients received only symptomatic treatment. The median time between COVID-19 to LT was 19 days (13.5-44.5). Deceased donor liver transplantation accounted for 61% of cases, while living donor transplantation was 39%. Conclusion: Despite the concerns regarding the postoperative evolution, the mortality of patients with high MELD or fulminant hepatitis transplanted shortly after COVID-19 diagnosis does not seem to be higher. (PROSPERO, registration number = CRD42021261790)

13.
Journal of Prevention and Treatment for Stomatological Diseases ; (12): 135-139, 2021.
Article in Chinese | WPRIM | ID: wpr-843024

ABSTRACT

@#Autologous fat transplantation in the treatment of velopharyngeal insufficiency has the advantages of good histocompatibility, small local trauma, few complications, reversible operation and simple postoperative nursing, which can effectively increase the velopharyngeal closure area. If the clinical effect is poor, other surgical methods can be used at any time for replacement. Although there are many advantages in the treatment of velopharyngeal insufficiency with autologous fat transplantation, there are still some problems in the selection of indication, donor site, injection dose, recipient site, follow-up evaluation, complications and prevention and treatment. Current research shows that autologous fat transplantation is mainly used in patients with mild or moderate velopharyngeal insufficiency, but with the improvement of fat acquisition and treatment techniques, the indications for autologous fat transplantation continue to expand, and autologous fat transplantation combined with palatoplasty or pharyngoplasty has been proposed for the treatment of severe velopharyngeal insufficiency. However, there are complications, such as fat absorption and obstructive sleep apnea syndrome. In addition, the application of autologous fat transplantation in severe VPI patients and how to improve the long-term stability of autologous fat transplantation need further study.

14.
Chinese Journal of Organ Transplantation ; (12): 426-429, 2021.
Article in Chinese | WPRIM | ID: wpr-911669

ABSTRACT

Objective:To summarize our institutional experiences of screening and selecting potential recipients and living donors for uterine transplantation at a single center.Methods:A total of 102 patients were diagnosed as absolute uterine factor infertility (AUFI). Depending upon the outcomes of previous trials, 8 modules were selected for surveying. A registration form was distributed for subjects at outpatient clinics or through telephone consultations for clinical trials of uterus transplantation between November 2018 and October 2019. The relevant information was collected and entered into a dedicated system for data processing.Results:The number of eligible subjects was 84 and the number of recipients with potential donors 37. The average age of potential recipients was 26.0(18-47) years. Among potential recipients, 76(90.5%) had congenital AUFI and 8(9.5%) acquired AUFI. For potential donors with available organs, the average age was 47.5(32-64) years and the proportion of menopausal or peri-menopausal status 56.8%.Conclusions:Currently large demands and sufficient supports for conducting clinical trials of uterine transplantation are available in China. However, inherent deficiencies persist in organ donor population reserves and preoperative screening protocols, such as donor age and subjective/objective factors of participants. During clinical trials of uterine transplantation, preoperative screening should be performed for expanding the screening scope, extending the screening time and popularizing the screening knowledge to boost the success rate.

15.
Chinese Journal of Medical Science Research Management ; (4): 412-416, 2021.
Article in Chinese | WPRIM | ID: wpr-934414

ABSTRACT

Objective:Exploring the " bottle neck" factors in the scientific research management of recipient hospitals, making good use of counterpart support resources to help identifying appropriate, tailored strategies of scientific research management that might improve the research capacity of recipient hospitals.Methods:Data were collected according to questionnaire survey and on-site interview, ABC classification method were used to perform statistical analysis, and " bottleneck" factors that constraint the scientific research work of the recipient hospital were summarized.Results:" Insufficient scientific research skills and lacking of talents" and " lacking of scientific research environment and recognition" are the two most prominent factors that negatively affect the scientific research capacity building of the recipient hospitals, followed closely by " the out-dated scientific research policies and lacking support from the hospital leadership" , insufficient of research platform or resources including research funding, as well as other factors. Based on such findings, this article took the First People's Hospital of Kashgar (Guangdong counterpart support) as an example, and tried to discuss some corresponding measures on how to make good use of counterpart support resources.Conclusions:The ABC classification method were used to identify the main " bottleneck" factors, and a series of effective measures that help to making good use of counterpart support resources were explored. As a result, the efficiency of the scientific research management of the recipient hospitals, which in terms of management methods, management concepts and management models, were improved.

16.
Article | IMSEAR | ID: sea-212815

ABSTRACT

Background: Split skin grafting is widely used surgical procedure for the treatment of ulcers. Graft survival depends on number of factors like vascularity, wound infection etc, diabetes is associated with endothelial dysfunction, neuropathy, wound infection which collectively affect the graft survival. Objective of this study was to compare the amount of graft uptake, the post-operative complications and survival of split thickness skin graft in diabetic and non-diabetic ulcer.Methods: In our prospective comparative study total 112 patients with ulcer were included of which 56 were diabetic and 56 were non-diabetic. All of them underwent split skin grafting as part of their wound management. Comparison was made between two groups in terms of amount of graft uptake, post-operative wound infection, revisional surgery, donor site infection.Results: Compared with non-diabetics, diabetics have significantly less graft uptake (p<0.001). out of 56 patients in diabetic group 4 (66.7%) underwent revisional surgery, out of 56 patients in non-diabetic group 2 (33.3) patients underwent revisional surgery (p value is <0.68) which is statistically insignificant. 3 (60%) out of 56 in diabetic group developed post-operative graft infection, 2 (40%) out of 56 in non-diabetic group developed graft infection (p=1, not significant). One patient in the study developed donor site infection. Among 112 cases, only 1 case had donor site infection with diabetic.Conclusions: Diabetes is associated with poor graft uptake and post-operative complication rates in patients undergoing split skin grafting.

17.
Article | IMSEAR | ID: sea-207545

ABSTRACT

Twin to twin transfusion syndrome is a rare but serious complication of monochorionic twin pregnancy. It is characterized by the development of abnormal placental vascular communication from one foetus (donor) to the other foetus (recipient). If left untreated it led to high rates of perinatal morbidity and mortality due to its poorly understood etiology and difficulty in diagnosing and treatment. Authors report a case of twin to twin transfusion syndrome in 24 years old primigravida with gestational age of 18 weeks 5 days diagnosed on ultrasound.

18.
Asian Journal of Andrology ; (6): 184-191, 2020.
Article in Chinese | WPRIM | ID: wpr-842481

ABSTRACT

An ideal animal model of azoospermia would be a powerful tool for the evaluation of spermatogonial stem cell (SSC) transplantation. Busulfan has been commonly used to develop such a model, but 30%-87% of mice die when administered an intraperitoneal injection of 40 mg kg-1. In the present study, hematoxylin and eosin staining, Western blot, immunofluorescence, and quantitative real-time polymerase chain reaction were used to test the effects of busulfan exposure in a mouse model that received two intraperitoneal injections of busulfan at a 3-h interval at different doses (20, 30, and 40 mg kg-1) on day 36 or a dose of 40 mg kg-1 at different time points (0, 9, 18, 27, 36, and 63 days). The survival rate of the mice was 100%. When the mice were treated with 40 mg kg-1 busulfan, dramatic SSC depletion occurred 18 days later and all of the germ cells were cleared by day 36. In addition, the gene expressions of glial cell line-derived neurotrophic factor (GDNF), fibroblast growth factor 2 (FGF2), chemokine (C-X-C Motif) ligand 12 (CXCL12), and colony-stimulating factor 1 (CSF1) were moderately increased by day 36. A 63-day, long-term observation showed the rare restoration of endogenous germ cells in the testes, suggesting that the potential period for SSC transplantation was between day 36 and day 63. Our results demonstrate that the administration of two intraperitoneal injections of busulfan (40 mg kg-1 in total) at a 3-h interval to mice provided a nonlethal and efficient method for recipient preparation in SSC transplantation and could improve treatments for infertility and the understanding of chemotherapy-induced gonadotoxicity.

19.
Chinese Journal of Burns ; (6): 85-90, 2020.
Article in Chinese | WPRIM | ID: wpr-799480

ABSTRACT

Objective@#To explore the choice of the donor site of flap and the repair method of secondary wound of flap donor site in tissue repair and reconstruction operation.@*Methods@#From January 2014 to September 2018, 62 cases of scar contracture deformity, 15 cases of skin tumor, 20 cases of skin and soft tissue injury, and 25 cases of chronic wound were admitted to the Burn Center of People′s Liberation Army of First Affiliated Hospital of Air Force Medical University, with 84 males and 38 females, aged from 3 to 89 years. Four repair strategies adopted for tissue repair and reconstruction and good repair of the donor site of flap were as follows: designing the flap rationally according to the condition around the wound or the size and shape of wound, choosing pre-expanded technique of the donor site of flap for repair of scar deformity optimally, making full use of the surrounding condition of flap donor site, and repaired with the distal flap, i. e. replacing the important site with secondary site. The donor site of flap was repaired by direct suture or peripheral flap and distal flap. The wound size of patients ranged from 3.0 cm×2.0 cm to 20.0 cm×18.0 cm, and the flap area ranged from 3.5 cm×2.0 cm to 25.0 cm×22.0 cm. The survival condition of flap, healing condition of donor site and recipient site, and follow-up condition of donor site and recipient site were recorded.@*Results@#Wounds of 122 patients were repaired with a total of 148 flaps designed by the above four repair strategies. All the flaps survived well, and the wound and flap donor site healed well. Follow-up for 3 to 36 months showed that the shape and function of recipient site and flap donor site were satisfactory.@*Conclusions@#According to the specific condition of the wound and anatomical structure of the surrounding tissue of flap donor site, overall surgical design with flexibility and personalization can achieve effects of good repair of the wound and reduce the secondary damage of flap donor site.

20.
Organ Transplantation ; (6): 185-2020.
Article in Chinese | WPRIM | ID: wpr-817592

ABSTRACT

In December 2019, a number of cases of pneumonia with unknown causes were successively reported in multiple hospitals in Wuhan City, Hubei Province, China. The pathogen is a novel coronavirus, which can lead to novel coronavirus pneumonia (COVID-19) and even threaten the patients' lives. In the following, the COVID-19 epidemic is spreading rapidly in many provinces and cities. It is particularly important to summarize and analyze the clinical characteristics of COVID-19 in solid organ transplantation (SOT) recipients and to optimize the prevention, early diagnosis and treatment strategies. Therefore, we organized Chinese experts in the field of organ transplantation to draft this article according to the characteristics of lung infection of SOT recipients and the characteristics of current COVID-19 by referring to relevant guidelines and specifications at home and abroad, aiming to provide reference for transplant physicians in China. This management strategy will be revised at any time with the deepening understanding of the COVID-19 infection.

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