Objective To explore the ABO blood group and Rh blood group system antigen distribution in Huainan area.Methods To investigate the Huainan area of 24 035 voluntary blood donors of the ABO and Rh blood group system phenotype and gene frequency distribution by the population genetics of the blood type.Results In the Huainan area population,the gene frequency of ABO blood type distribution was r ＞ P ＞ q,the distribution of phenotype was O ＞ A ＞ B ＞ AB,the distribution of RhD(-)frequency was 0.36％,and this result was consistent with the RhD(-)frequency of 0.2％～0.5％ of the Han population in the country.Conclusion ABO blood group and Rh blood group were two separate systems,control their distributed rule in the Huainan region was very important to the clinical use of blood,establishment of a repository of rare blood group of RhD(-),alleviation the lack of state hospital transfusion,raising the level of clinical treatment and to the reducing the incidence of immunological transfusion reactions.

Objective To control IDS virus (HIV)transmission through blood, provide low -risk blood donors to donate regularly, and ensure blood safety and reduce the risk of blood transfusion. Methods By analyzing HIV antibody(anti-HIV) test results, HIV infection and prevalence of blood donors from 2000 to 2009, susceptible people were identified,prevented,educated,in order to prevent the spread of HIV. Results A total of 10 years in Huainan region 361 cases of anti-HIV positive were screened out. Anti-HIV-positive of voltmtary blood donors were recognized anti-HIV positive in 4 cases ,accounting for 0.209/10 000 of the total voluntary blood donation. Epidemiological analysis in 4 cases of anti-HIV confirmed positive results: the education level of all was less than high school,75% were the local household registration ;25% were mobile population, and all were young adults, aged from 23 to 38 years;75% were workers,and 25% were temporary workers and the service sector. Conclusion By strictly blood screening to blood donation, strengthening the management, intensify propaganda against AIDS in efforts, raising people 's awareness of prevention,the spread of AIDS could be prevented and controlled.

Objective: To explore lipid peroxidation injuries of pancreatic mitochondria and lysosome following severe acute pancreatitis (SAP) and the protective effects of gardenia jasminoides ellis (GJE) thereof. Methods: SAP models were induced by retrograde injection of 1.5% sodium deoxycholate. The rats were randomly divided into three groups: sham group, SAP group and GJE group. The changes were measured in superoxide dismutase (SOD), malondialdehyde (MDA), membrane fluidity of mitochondria and lysosome in pancreas and succinic dehydrogenase (SDH) in mitochondria, acid phosphatase (ACP) in lysosome.The effects of GJE were also observed. Results: Compared with Sham group, the activity of SOD and membrane fluidity of mitochondria and lysosome were decreased in pancreas, and the content of MDA were increased; the releasing rate of ACP was significantly higher in lysosome; SDH in mitochondria was lower in SAP group(P < 0.01). The above-mentioned indexes were obviously ameliorated in GJE group than those in SAP group(P < 0.01). The correlation analysis indicated that MDA was negatively correlated with SOD, positively correlated with membrane fluidity (P < 0.01). Conclusion: GJE can alleviate lipid peroxidation by getting rid of oxygen free radicals of pancreatic subcellular fraction in the course of SAP, and protect the structure and function of pancreatic subcellular fraction.

Objective To acquire normative values of anorectal manometry and sensation in population of our country with different gender and age.Methods Healthy individuals from four medical centers were collected and divided into three group according to their age,group Ⅰ 18 - 39 years old, group Ⅱ 40-59 years old and group Ⅲ ≥60 years old.The parameters of anal of subjects at resting status was examined by pneumohydraulic capillary perfusion system and high resolution PC Polygraf HR desktop gastrointestinal dynamic monitoring system.Subjects were asked to simulate defecation and then the defecation related indexes were recorded.In the end rectoanal inhibitory reflexes (RAIR)and rectal sensation were assessed by aired balloon.One-way analysis of variance and independent sample test were performed to compare indexes among three groups with different age and between different genders. Results A total of 166 healthy subjects were enrolled,79 in group Ⅰ with 40 male,68 in group Ⅱ with 29 male and 19 in group Ⅲ with 11 male.There was no significant difference in anal sphincter length (ASL),valid anal sphincter length (VASL),resting anal sphincter pressure (RASP),squeeze anal sphincter pressure (SASP)and duration of valid squeeze anal sphincter pressure (VSASP)among three groups with different age (all P > 0.05 ).Compared between male and female,only SASP of male ((180.13±8.10)mmHg,1 mmHg=0.133 kPa)was significantly higher than that of female ((143.93± 6.59)mmHg,t = -3.489,P <0.001 ),no difference in other parameters was found (all P >0.05 ). There was no significant difference in rectal pressure (RP),rectoanal pressure gradient (RAPG),anal sphincter relaxation rate (ASRR),and rectoanal coordination (RAC)among three groups (all P >0.05). During simulated defecation,RP and RAPG of men ((61 .23±3.46)mmHg and (40.04±4.08)mmHg) were significantly higher than those of women ((44.47 ± 2.32)mmHg and (24.00 ± 2.59 )mmHg, t=-4.075 ,-3.367,both P <0.01 ).There was no significant difference in other parameters between men and women (all P >0.05).All participants had RAIR,and there was no significant difference neither among three groups nor between men and women (both P >0.05).There was no significant difference in first rectal sensation (FRS)and constant rectal sensation (CRS)among three groups with different age (all P >0.05).However,the maximum rectal tolerable sensation (MRTS)of group Ⅱ and group Ⅲ was significantly higher than that of group Ⅰ ((194.41 ±6.32)mL and (200.00±12.75)mL vs (167.80 ± 5 .00)mL,F = 6.698,P = 0.002).There was no significant difference in rectal sensation between different gender (all P >0.05 ).Conclusions In our country,SASP,RP and RAPG during simulated defecation of male are higher than those of female.The value of MRTS increases along with the age.

Objective:To understand the current situation of syphilis infection among 12 295 blood donors in Huainan area, so as to provide reference for the management of public health.Methods:The Treponema pallidum(TP) antibody of the blood donors was screened by enzyme-linked immunosorbent assay, and the unqualified blood donors for TP antibody were confirmed by Treponema pallidum particle agglutination(TPPA).Results:There were 48 blood donors TPPA positive among 12 295 blood donors in Huainan area, and the TPPA positive rate was 3.90‰(48/12 295). There was no statistically significant difference in the TPPA positive rate of the different gender blood donors[male 3.12‰(22/7 048) vs.female 4.96‰(26/5 247)] in Huainan area( u=1.61, P>0.05). There was statistically significant difference in the TPPA positive rate of the different marriage blood donors[married 5.33‰(42/7 884) vs.unmarried 2.01‰(6/2 989)] in Huainan area( u=2.33, P<0.05). There was statistically significant difference in the TPPA positive rate of the blood donors among different education level in Huainan area(χ 2=29.94, P<0.05). There was no statistically significant difference in the TPPA positive rate of the blood donors among ABO blood groups in Huainan area(χ 2=2.24, P>0.05). Conclusion:There are significant differences in the TPPA positive rates of the blood donors among marital status and education level in Huainan area.

ObjectiveTo establish normative values of esophageal manometry in different age groups and standard test method.Methods The values of esophageal manometry were tested in healthy subjects of 3 different age groups (Group Ⅰ: 18-39 years,Group Ⅱ: 40-59 years,Group Ⅲ:≥60 years) with pneumohydraulic capillary perfusion system.The repeatability and stability of this method in lower esophageal sphincter (LES) testing were observed. Results There were no significant differences of LES length (LESL),LES pressure (LESP) at the end of expiration,average LESP,residual pressure of LES and LES relaxation rate (LESRR) in three groups (P＞0.05).The LESP at the end of inspiration in Group Ⅰ (28.98± 1.11 ) mm Hg was significantly lower than that of Group Ⅲ (34.35±1.96) mm Hg (P＜0.05).Trandiaphragmatic pressure (Pdi) in Group Ⅰ (9.55±0.62) mm Hg was significantly lower than that of Group Ⅱ (13.05±0.76) mm Hg (P＜0.05).There were no significant differences in contraction amplitude and duration of proximal and distant esophagus in 3 groups (P＞0.05).UES pressure (UESP) of Group Ⅲ was significantly lower than that of Group Ⅰ and Ⅱ (P＜0.05).As for repeatability,the second recording of LESP in Group Ⅰ and Ⅱ were significantly higher than first recording (P＜0.05).Amplitude of distant esophageal peristaltic contraction (DEPC) of female was significantly higher than of male (P＜0.05).However,there was no significant difference in amplitude of proximal esophageal peristaltic contraction (PEPC)between femal and male (P＞0.05).ConclusionsThe normative values of esophageal manometry in different age groups have been obtained.The dynamic parameters of LES do not change with age.Between age 40 to 59 years old,the contraction of esophageal body is strongest.UESP decreases significantly in old people.If the subjects have enough time to adapt before test,it will help to get accurate and reliable dynamic parameters of LES.

Objective To improve the quality of the management of the elderly patients with cancer in Sichuan province,and to understand the attitudes and perspectives of elderly surgeons and oncologists for the management and treatment of elderly patients with cancer.Methods A face-toface questionnaire interview was conducted with oncologists (n 64) and geriatricians (n =64).128 physicians were involved in this study.Results The cancer management and therapeutics were deemed appropriate at present by 9.38％ (6/64)of the geriatricians and 25.00％ (16/64)of the oncologists.The 39.06％ (25/64) of geriatricians used to notice geriatric syndromes,while 81.25％ (52/64)of oncologists never concerned about the geriatric syndrome(P=0.011).As for the causes of the therapy-associated toxicity,oncologist versus geriatrician payed an attention to malnutrition (100.00％ vs.100.00％ in both groups),to mobility disorders(65.63％ vs.65.63％,84/128 in both groups),to cognitive impairment/mood disorder (89.06％ in geriatrician group vs.75.00％ in oncologist group,P=0.038).For the factors affecting treatment decisions,a physical ability attention (oncologists vs geriatricians:70.31％ vs.92.19％;P =0.002),and comorbidity (oncologists vs geriatricians:62.50％ vs.79.69％,P =0.032) had statistically significant difference.In addition,lack of geriatrics knowledge was also reported by more oncologists.However,one hundred percent of participants wanted very much to cooperate with each other in their clinical work.When responding to the clinical scenario,the 10.94％ (7/64)of geriatricians and 32.81％ (21/64)of oncologists chose modified treatment for 65-74 years old patient with cancer(P =0.003).When the age of the patients was 75-84 years old,only 12.50 ％ (8/64) of geriatricians prefer end-of-life care,while 31.25 ％ (20/64) of oncologists chose it (P =0.010).Conclusions Selection of treatment decisions in the elderly patients with cancer affect by ageing.Both oncologists and geriatricians are concerned with the elderly patients with cancer,ageing syndrome,total sickness and functional status.And these doctors support an establishment of a multi disciplinary team cooperation for the elderly patients with cancer.Therefore,the establishment of mutual cooperation between the two professionals is necessary and feasible.

Objective:To investigate the relationship between the dose of preoperative neoadjuvant radiotherapy and the pathologic complete response (pCR) rate in patients with locally advanced squamous cell esophageal cancer (ESCC).Methods:Clinical data of 116 patients with ESCC who received neoadjuvant chemoradiotherapy followed by esophagectomy in our cancer center from July 2017 to December 2019 were retrospectively analyzed. The radiation doses were divided into 2 ranges based on Grays (Gy) received: 40-45 Gy and 45 Gy or more.Results:The overall pCR rate was 38. 8%(45/116). pCR was observed in 35 out of 80(44%) patients treated with 40-45 Gy and 10 of 36(28%) patients treated with 45 Gy or more. The pCR rate did not significantly differ between two groups [(40-45 Gy) vs.( ≥ 45 Gy), P=0.105)]. Conclusions:Preoperative neoadjuvant radiotherapy with a higher dose (≥ 45 Gy) fails to increase the pCR rate in patients with locally advanced ESCC. Prospective randomized trials are required to determine the optimal dose of preoperative adjuvant radiotherapy.