Objective To explore the clinical diagnostic value of monoclonal gastric cancer 7 antigen(MG7-Ag) in gastric cancer through a meta-analysis .Methods The PubMed ,Embase ,ISI Web of Knowledge ,China National Knowledge Infrastructure (CNKI) ,Wanfang databases were retrieved from their establishment to April 5 ,2013 .The qualities of the included literatures were assessed by the QUADAS scale .The heterogeneity test and meta-analysis were conducted by the Stata12 and the Meta-DiSc soft-wares .Results 610 articles were retrieved from databases .7 articles containing 4 516 cases conformed with the included standard . The sensitivity of MG7-Ag in diagnosing gastric cancer was 0 .72(95% CI:0 .68 -0 .76) ,its specificity was 0 .94(95% CI:0 .93 -0 .94) ,the positive likelihood ratio was 6 .09(95% CI:3 .36-11 .07) ,the negative likelihood ratio was 0 .34 (95% CI:0 .21-0 .56) and the AUC was 0 .893 4 .Conclusion The comprehensive research results indicate that MG7-Ag has the sensitivity of 0 .72 for di-agnosing gastric cancer ,which is higher than that of currently used diagnostic markers such as carcino-embryonic antigen(CEA) , CA50 and CA19-9 ,which has the high value for excluding other diseases and can be used as a marker for diagnosing gastric cancer .

Objective To investigate the effect of preemptive parecoxib on blood coagulation in patients undergoing abdominal hysterectomy. Methods This was a randomized, double-blind controlled study. Seventy ASA Ⅰ or Ⅱ patients aged 38-56 yr weighing 50-75 kg undergoing abdominal hysterectomy under combined spinal-epidural anesthesia were randomized to one of 2 groups (n=35 each): parecoxib group (group P) received intravenous parecoxib 40 mg/2 ml at 20 min before anesthesia and control group (group C) received normal saline 2 ml instead of parecoxib. Both groups received patient-controlled intravenous analgesia (PCIA) with butorphanol after surgery. The PCIA solution contained butorphanol 0.2 mg/kg and ondansetron 4 mg in normal saline 100 ml.The PCIA was set up with background infusion 2 ml/h, incremental dose 2 ml, and lockout interval 15 min. VAS score was used to assess the intensity of pain (O= no pain, 10 = worst pain). Venous blood samples were taken before and at 30 min and 2 h after parecoxib or normal saline administration for coagulation test and platelet count.The postoperative ambulation time and adverse response were recorded. Butorphanol consumption per hour during postoperative analgesia and total consumption of butorphanol within 24 h after operation were also recorded. Results Compared with those before parecoxib administration, prothrombin time and thrombin time in group C and thrombin time in group P were significantly prolonged and fibrinogen concentration was significantly lower in group C at 30 min after parecoxib administration (P＜ 0.05), but no significant difference was found in the other parameters of blood coagulation and platelet count at 30 min after parecoxib administration in group P ( P＞0.05).The fibrinogen concentration was significantly higher, the incidence of postoperative nausea and vomiting was significantly lower, the postoperative ambulation time was significantly shorter, and butorphanol consumption per hour during postoperative analgesia and total consumption of butorphanol within 24 h after operation were significantly lower in group P than in group C ( P＜0.05 ), but there was no significant difference in the other parameters of blood coagulation and platelet count between group P and group C ( P ＞ 0.05 ). Conclusion Preemptive parecoxib 40 mg can enhance blood coagulation in patients undergoing abdominal hysterectomy.

OBJECTIVE:To observe the anesthetic effect of dexmedetomidine in pelvic floor reconstructive surgery of elderly patients with pelvic organ prolapse(POP). METHODS:60 elderly patients with pelvic floor reconstructive surgery were randomly di-vided into observation group and control group. Observation group was treated with 0.5 μg/kg dexmedetomidine by pumping and control group was treated with 0.125 ml/kg 0.9% sodium chloride injection by pumping 15 min before anesthesia,and conventional intravenous induction was conducted after 15 min. MAP,HR and bispectral index(BIS)in entering the room(T0),5 min after ad-ministration(T1),immediate intubation(T2),1 min after intubation(T3),5 min after intubation(T4),surgical skin incision(T5), immediate extubation(T6)and 5 min after extubation(T7),restlessness score,sedation score,recovery time and incidence of ad-verse reactions in 2 groups were observed. RESULTS:MAP and HR in observation group in T1-7 were significantly lower than T0 and control group,MAP and HR in control group in T2-7 were significantly high than T0 except that T1 was significantly lower than T0,the differences were statistically significant(P<0.05);BIS in 2 groups T1-7 was significantly lower than T0,the differences were statistically significant(P<0.05),however,there was no significant difference between 2 groups(P>0.05). Restlessness score in observation group was significantly lower than control group,sedation score was significantly higher than control group,the differ-ence was statistically significant(P<0.05),there was no significant difference in the recovery time between 2 groups(P>0.05). There were no obvious adverse reactions in 2 groups during treatment. CONCLUSIONS:Dexmedetomidine can effectively reduce the stress response and maintain cycle stability in the treatment of elderly patients with pelvic floor reconstructive surgery,with good safety.

Objective: To prepare diphenidol hydrochloride push-pull osmotic pump tablets and in-vestigate the influence of differ-ent factors on in-vitro drug release. Methods: The cumulative release of different formulas was detected. Using the cumulative release and similarity factor f2as the evaluation criterion, single factor experiment was applied to screen the core formula and coating process. Results: The drug release behavior was affected by the content of PEO in the drug containing layer, the content of NaCl and the weight gain of the coating layer. After the formula was optimized, the NaCl content in the drug containing layer was 10mg, the PEO-N10 con-tent was 15mg. In the push layer, the content of PEO-WSR303 was 60 mg, that of NaCl was 20 mg. The optimized coating liquid for-mula contained 1. 25 g·L-1PEG4000 and the coating weight gain was 7% of the core. The optimized formula fitted a zero-order equa-tion within 2-12h with the drug release equation of Q=6. 308t-2. 5037(r=0. 995 8). Conclusion: The preparation technology of di-phenidol hydrochloride push-pull osmotic pump tablets is stable, and the in-vitro drug release fits zero-order model.

Objective:To identify 3 the disease-causing genes and mutations of Leber congenital amaurosis (LCA), and to study the correlation of phenotype and genotype.Methods:A retrospective study. Four LCA patients and seven family members who were diagnosed by eye examination in Ning Xia Eye Hospital of People's Hospital of Ningxia Hui Autonomous Region from January to December 2021 were included in the study. Four patients were from 3 unrelated families. Detailed collection of medical history and family history were received. Related ophthalmologic examination were collected and genomic DNA was extracted from peripheral blood. Whole-exome sequencing method was used for genetic diagnosis. The identified variant was confirmed with Sanger sequencing. Potential pathogenic mutation was analyzed using software and conserved domain analysis and performed co-separated analysis between the family member and the proband.Results:Of the 4 patients, 1 patient was males and 3 patients were females; the age was from 4 to 18 years. Nystagmus were seen in 3 cases, finger pressing eyes and night blindness was seen in 1 cases; electroretinogram showed 4 cases of extinction or near extinction. The foveal reflection was visible in all eyes, and there was no obvious abnormality in the peripheral retina. One eye had strong reflection signal with raised ellipsoid in macular area; two eyes had weak reflection signal faintly visible between retinal layers; 1 eye had increased blood vessel branches, peripheral retinal non-perfusion area with capillary leakage; annular strong autofluorescence in macular area 4 eyes. No obvious abnormality was found in the phenotypes of family members. Genetic testing showed that the proband of pedigree 1 (Ⅱ-1) was found a homozygous missense mutation in c.640A>T (p.C214S) (M1) of PRPH2 gene. The proband of pedigree 2 (Ⅱ-2) was found compound heterozygous mutation in c.1256G>A(p.R419Q) (M2) and c.1A>C (p.M1L) (M3) of TULP1 gene. The proband 3 (Ⅱ-1) and her sister (Ⅱ-2) were both found compound heterozygous mutation in c.1943T>C (p.L648P) (M4) and c.380C>T (p.P127L) (M5) of GUCY2D gene. The parents and sister (Ⅱ-1) of the proband in family 2 and the parents of the proband in family 3 were all carriers of the corresponding heterozygous variant. M1, M3, M4, M5 were novel mutations and unreported. The genotype and disease phenotype were co-segregated within the family. According to the analysis of pedigree and genetic testing results, all 3 families were autosomal recessive inheritance. The amino acid conservation analysis found that M1, M2, M3, M4, and M5 were highly conserved among species. The results of bioinformatics analysis were all pathogenic variants. Conclusions:PRPH2 gene M1, TULP1 gene M3, and GUCY2D gene M4, M5 were novel mutations and not been reported in the literature and database. This research expanded the gene mutation spectrum of LCA. The patients with LCA have available characterristics, including onset age, varying ocular fundus and severe visual impairment.