Objective To explore the intervention of erythromycin(EM) on acute lung injury(ALI) in rat model MethodsALI rat model was established by intravenous i njection of oleic acid(OA) EM of 180 mg/kg was injected intraperitoneally t wo h ours before OA challenge in the prevention group and consecutive three days afte r OA challenge in the treatmen group ResultsCompared with con trol group,the aninmals in prevention group and treatmen group had lower lung extent,milder pathomorphological changes and pathologic integral The concentra tion of protein and the numbers of neutrophils and lymphocytes in bronchoalveola r lavage fluid(BALF) were also reduced ConclusionEM may part ly prevent the development of ALI by inhibiting the neutrophil and lymphocyte ac cumulatation in the lung

Bi-polar,bi-pedicled separation delayed flaps were designed on the backs of New Zealand rabbits with the application of a medical silicon membrane as the separation material. Values of glucose and lactic acid, PtcO 2 were measured separately at proximal,middle and distal areas of the flaps after the distal pedice was cut at 0,1,4,7,14,21 days,respectively, after the formation of flaps. After flap delaying,PtcO 2 in separated flap was always lower than that of the mormal control,accompanied with glucose decrease and lactic acid increase, although there were significant differences in different areas of the flap. The survived area of the flap increased after 7 days. Furthermore,all the length of the flap survived after 21 days,although the level of glucose in the flap was still lower and lactic acid was still higher.The results suggested that by separation and delaying the flap may adapt gradually to hypoxia via lowered metabolism.For flap survival,the threshold value of glucose in flap is 0 01mmol/L , lactic acid is 0 47mmol/L,and PtcO 2 is 3mmHg .

Relation between change of capillary pressure, survival length in bi pedicled separation delay flap was observed. Bi polar, bi pedicled separation delay flaps were designed on the backs of New Zealand rabbits. Medical silicon membrane was used as separative material. Values of capillary pressure were measured at proximal, middle and distal points. Survival length increased with delayed time, capillary pressure at middle was lower in the bi pedicled separation delay flap. It is concluded that capillary pressure is increased greatly by separation delay, and there is a linear relation between capillary pressure and survival length of flaps.

[Objective]To probe the efficacy of total hip arthroplasty(THA)in the treatment of patients with ankylosing spondilitis(AS).[Method]Ninety-eight THA were performed in 56 patients who had AS,and 42 patients(76 hips)were analyzed retrospectively with an average follow-up period of 5.6 years(ranged,2.5 to 5.5 years).The clinical results were evaluated by the Harris hip scoring system and radiographic analysis.[Result]For the latest follow-up,the average Harris hip score improved from 26.8 points(ranged,4 to 51 points)preoperatively to 85.2 points(ranged,55 to 94 points)at the final postoperatively evaluation.89.5% of the patients had an excellent or good results evaluated by Harris hip scoring system postoperatively.One patient was revised for infection,fissured fracture of neck of femur or calcar femorale above the lesser trochanter happended in two patients,one patient had footdrop and recovered 3 months later,1 patient had deep vein thrombosis.There was no sign of loosening,dislocation or fracture of the prosthesis.According to the system of Brooker,the incidence of heterotopic ossification was 9.2 %(7 hips).[Conclusion]THA can greatly relieve the pain of the patients who have AS and reconstruct the function of hip joint.Compared with THA operated for other cause of disease,THA in AS leads to no high risk.

Objective To investigate the FECH gene mutation in a Chinese family with erythropoietic protoporphyria, to explore the relationship between gene mutation and clinical manifestations so as to estab-lish a basis for the genetic diagnosis and treatment of erythropoietic protoporphyria. Methods Clinical data on a Chinese family with typical EPP was collected. Peripheral blood was obtained from patients, unaffected individuals in the family and 50 unrelated human controls. Genomic DNA was extracted and PCR was per-formed to amplify the whole coding regions (exons 1 to 11) of FECH gene and their flanking intron sequences followed by direct sequencing to detect possible mutations. Results Based on clinical symptom and por-phyrin levels, a diagnosis of erythropoietic protoporphyria was made in 3 family members. DNA fragments of expected size were amplified by PCR. Gene sequencing revealed a heterozygons mutation (IVS1 + 1G >C) in intron 1 of FECH gene in the proband, his sister and father, but not in unaffected family members or unrelated human controls. Also, an IVS1-23C/T polymorphism associated with low expression alleles was observed in intron 1 of FECH gene of the proband, his sister and mother. Conclusions A novel mutation in the donor splice site of intron 1 of FECH gene is first reported in a Chinese family with EPP; this muta-tion may lead to a deficiency of FECH gene and serve as a molecular basis of development of erythropoietic protoporphyria.

【Objective】 To analyze the causes and solutions of ABO forward and reverse grouping discrepancy, and to ensure the safety of blood transfusion in clinical. 【Methods】 Samples from 75 patients with discrepancy between forward and reverse grouping in December 2019 and March 2022 were tested and analyzed in combination with saline method(forward and reverse grouping), direct antiglobulin test, antibody screening, antibody identification, increasing plasma volume, incubation enhancement test at 4℃, absorption-eluation test and molecular biological tests. 【Results】 Causes for abnormal reverse typing were as follows : weak antibody in 11 cases(14.67%), unexpected antibody in 19 cases(25.33%), inverted albumin and globulin ratios in 9 cases(12.00%), increased white blood cells in 3 cases(4.00%), inadequate anticoagulation in 3 cases(4.00%), bone marrow transplantation in 2 cases(2.67%), multiple myeloma in 4 cases(5.33%), acute gastrointestinal bleeding in 3 cases(4.00%). Causes for abnormal forward typing were as follows: self-coagulating in 1 case(1.33%), acute leukemia in 7cases(9.34%), post-transplantation in 1 case(1.33%). Causes for abnormal forward/reverse typing: acute leukemia in 1 case(1.33%), condensin syndrome in 1 case(1.33%), autoimmune hemolytic anemia in 6 cases(8.00%), subtype in 4 cases(5.33%). Results of genotying in 7 cases were as follows: B(A) 04 for 1 case, B(A)02 2 cases, AB3 1case, A1 2 cases, and 1case with new genotype. 【Conclusion】 For patients with forward and reverse typing discrepancy for ABO blood group, several studying methods, such as clinical/serological tests inquiring, absorption-eluation tests and molecular biological tests, should be combined to ensure blood transfusion safety.

【Objective】 To analyze the effects of IgG subtypes(IgG 1 and IgG3) of antibodies contained in infant serum and erythrocyte eluates on hemolytic disease of the newborn(HDN), so as to provide reference for its early clinical diagnosis and treatment. 【Methods】 49 newborns with HDN in our hospital from June 2019 to March 2020 were detected for three hemolytic tests(direct antiglobulin test, elution test and indirect antiglobulin test), as well as the components of IgG1 and IgG3 in eluates. The correlation analysis was conducted by combining birth hours (physiological jaundice) and hemolytic degrees (total bilirubin, indirect bilirubin, and hemoglobin). 【Results】 In the 44 cases of IgG1 and IgG3 subtype detection of infant RBC eluates, regression equations could be established between total bilirubin, indirect bilirubin and birth hours, and between hemoglobin and elution test, and linear regression relationships were found (P<0.05). In the 28 cases of IgG1 and IgG3 subtype detection of infant serum, regression equations could be established between total bilirubin, indirect bilirubin, birth time and IgG3 subtype, and between hemoglobin and IgG1 subtype (P<0.05), and linear regression relationships were found (all P<0.05). Three infants, presenting IgG1 and IgG2 subtypes(+ ) and three hemolysis tests(-), were all second pregnancy, constituted by Rh-HDN of 2 case and other-system-HDN 1. 【Conclusion】 The degree of HDN is directly related to IgG1 and IgG3 antibodies in infant blood plasma. In addition to the total bilirubin and indirect bilirubin, the changes of IgG3 antibodies in infant plasma and IgG1 antibody in anemic infants should be monitored. If IgG1 and IgG3 antibodies are yielded even with all negative ABO-HDN hemolysis tests, non-ABO-HDN should be considered in time to achieve accurate diagnosis and treatment.

This paper summarized TONG Xiaolin's clinical experience in using "poisonous" Chinese material medica to treat metabolic diseases， who believes that toxicity reducing and efficacy enhancing can be achieved through carefully considered dosage， reasonable combination of medicinals， and appropriate preparation and administration ways.By analyzing the functions of Chinese material medica and findings from modern pharmacology and toxicology， the clinical dosage features， combination of medicinals and medication， preparation and administration methods and other precautions have been summarized regarding Huanglian （Rhizoma Coptidis） in treating diabetes， Xixin （Radix et Rhizoma Asari）， Dahuang （Radix et Rhizoma Rhei） and Shuizhi （Hirudo） in treating diabetic kidney diseases， Zhichuanwu （Radix Aconiti Praeparata）， Zhicaowu （Radix Aconiti Kusnezoffii Praeparata）， Xixin and Zhimaqianzi （Semen Strychni Praeparata） in treating diabetic peripheral neuropathy， Yinyanghuo （Herba Epimedii） and Wugong （Scolopendra） in treating diabetic erectile dysfunction， Fuzi （Radix Aconiti Lateralis Praeparata） and Banxia （Rhizoma Pinelliae） in treating diabetic gastroparesis， Hongqu （Monascus purpureus Went） and Weilingxian （Radix et Rhizoma Clematidis） in treating metabolic syndrome， as well as Leigongteng （Radix Tripterygii Wilfordii） and Huangyaozi （Rhizoma Dioscoreae Bulbiferae） in treating Hyperthyroidism， thereby providing reference for precise clinical medication.