Objective: To improve the traditional preparation procedure of effervescent tablets in order to raise stabilization. Methods: The orthogonal design was used for improvement of process. Results: The optimum procedure condition was A 3B 2C 1. That is adding 7.5% citric acid, 11.25% sodium bicarbonate encapsulated by 5% PEG. Conclusion: The new procedure is superior to the traditional procedure, and it is suitable for the requirement of production on a large scale.

Objective To analyze the results of surgical treatment on chronic pancreatitis(CP),and investigate how to choose the appropriate surgical procedure.Methods The clinical data of 54 patients with chronic pancreatitis who underwent surgery at the First Affiliated Hospital of Harbin Medical University from January 2007 to December 2011 were retrospectively analyzed.Results All the 54 patients underwent surgery,including 8 decompression and drainage procedure (Partington procedure) ; 13 resections (7 cases of pancreaticoduodenectomy,1 case of distal pancreatectomy,4 cases of distal pancreatectomy combined with splenectomy and 1 case of pancreaticoduodenectomy combined with distal pancreatectomy,respectively); 12hybrids (7 cases of Beger procedure and 5 cases of Frey procedure,respectively) and 21 other procedures (15 cases of pancreatic pseudocyst jejunostomy,4 cases of exploratory laparotomy combined with pancreatic tissue biopsy,2 cases of gastrojejunostomy combined with choledochojejunostomy,respectively).There were 4 cases of post-operative pathologic evidence of cancer.Twelve patients had postoperative complications and were cured with non-operative management.Forty-four patients (81.5％) were followed for 2 to 67 months,36 out of 42(85.7％) patients who suffered from abdominal pain had a persistent remission,there were one case of new on-set diabetes and no steatorrhea was reported.Conclusions For CP patients with surgical indications,the choice of procedure should be individualized for the purpose of preserving the endocrine and exocrine functions of pancreas,and taking effectiveness as well as safety into consideration.

Objective To detect the reactive samples of enzyme-linked immunosorbent assay (ELISA1) by chemiluminescence microparticle immunoassay (CMIA),and to analyze the application value of CMIA in HCV infection validation of blood donors.Methods Nucleic acid 3-item combined testing (NAT),another ELISA2,HCV antibody supplementary test(Western Blot test,WB) and CMIA test supplemented in blood samples of 102 ELISA1 anti-HCV reactive blood donors were retrospectively analysed.Results Among 102 blood donors of anti-HCV positive,32 cases (31.37%,32/102) were HCV RNA reactive samples,50 cases (49.02%,50/102) were ELISA2/WB reactive simultaneously.With CMIA NAT results as the reference standard,CMIA was poorly correlated with HCV RNA (Spearman correlation coefficient rs=0.395,P<0.01),and the consistency between them was weak by Kappa test (Kappa=0.270,P<0.01).With ELISA2/WB detection results as the reference standard,CMIA was highly correlated with the results(Spearman correlation coefficient rs=0.713,P<0.01),and which showed high consistency by Kappa test (Kappa=0.674,P<0.01).Conclusion CMIA as a detection method of protein label after HCV infection has great value in the HCV infection confirmation in low-risk population.

Objective:To observe the effect of hair care products containing zinc pyrithione, pollen extract, sachitin and other ingredients assisted with finasteride in the treatment of androgenic alopecia.Methods:From June 2018 to February 2019, 60 male androgen alopecia patients aged 18-40 (30.85±4.73) years were enrolled in this study. 30 cases in each group were treated for 180 days, and finasteride 1 mg/day was taken orally in both groups. In the experimental group, on the basis of finasteride, hair care products containing zinc pyrithione, pollen extract, sachitin and other ingredients were used, while the control group was treated with common care products. The improvement of scalp and hair and the satisfaction of patients were evaluated before and after treatment.Results:After 180 days of treatment, the improvement of scalp oil ( t=2.744, P<0.05), pruritus ( t=2.574, P<0.05), dandruff ( t=2.579, P<0.05) and general sense of use ( t=2.134, P<0.05) in the experimental group were significantly better than those in the control group ( t=2.077, P<0.05). The hair density of the experimental group was significantly better than that of the control group ( P<0.05). The patients＇ satisfaction rates in the experimental group and the control group were 96.67% (29/30) and 83.33% (25/30), respectively; there was no significant difference between the two groups ( P>0.05). No adverse reactions were found in all patients. Conclusions:Hair care products containing zinc pyrithione, pollen extract, sachitin and other ingredients assisted with finasteride can improve the scalp oil, pruritus and dandruff of patients with androgenic alopecia, and can increase the curative effect of the treatment of alopecia of the patients.

Objective To analyze the clinical factors predicting long-term survival after curative resection of pancreatic head carcinoma. Methods The clinical data of 58 patients with ductal adenocarcinoma of pancreatic head who underwent curative resection of carcinoma of pancreatic head from 1996 to 2004 were collected and were analyzed by SPSS 10.0 with Cox Proportional Hazards Model. Results 58 patients, including 30 male and 28 female patients, were involved in this study. Pancreaticoduodenectomy were performed in 14 cases and extended resections were performed in 44 cases. The overall 1, 3, 5 year survival rates was 46.6%, 29.3% and 8.6%, respeclively. The 1,3, 5 year survival rates of pancreatoduodenectomy with extended regional lymphadenectomy was 43.1%, 22.7% and 6.8%, respectively. UICC staging, peri-pancreatic nerve invasion and blood infusion had significant effects on the prognosis after curative resection. Conclusions The long-term prognosis after curative resection of pancreatoduodenectomy was still dismal. Much importance should be paid to early diagnosis and comprehensive management for pancreatic head cancer.

Objective To evaluate multiple minimally invasive techniques in the treatment of severe acute pancreatitis (SAP).Methods The clinical data of 93 patients with SAP who received minimally invasive treatment at the First Affiliated Hospital of Harbin Medical University from January 2005 to July 2010 were retrospectively analyzed.Percutaneous catheter drainage (PCD),endoscopic retrograde cholangio-pancreatography (ERCP),endoscopic sphincterotomy (EST),endoscopic nasobiliary drainage (ENBD) and laparoscopy were applied according to the condition of the patients.The efficacies of different treatment methods were evaluated.Results On the basis of comprehensive treatment,32 patients received 1 kind of minimally invasive treatment,41 patients received 2 kinds of minimally invasive treatment,14 patients received 3 kinds of minimally invasive treatment and 6 patients received 4 kinds of minimally invasive treatment.Sixty-nine patients received ultrasoundguided PCD; 28 patients received ERCP,EST and (or) ENBD; 29 patients received laparoscopy; 19 patients received treatments with stepped approach; 4 patients were complicated with abdominal bleeding,and received interventional treatment.The mean time of abdominal pain relief and duration of hospital stay were (37 ± 18)hours and (31 ±21 )days,respectively.The abdominal infection rate,laparotomy transfer rate,curative rate and mortality rate were62％(58/93),4％(4/93),91％ (85/93) and 9％ (8/93),respectively.Conclusion Multiple minimally invasive techniques combined with individualized treatment may significantly improve the curative rate of SAP.

Allergic contact dermatitis (ACD) is a T cell-mediated inflammatory skin disease induced by contact allergens. The role of mast cells in ACD remains controversial. In the sensitization phase, mast cells play a pro-inflammatory role by releasing inflammatory cytokines to promote recruitment of neutrophils, and affect the sensitization process by stimulating or inhibiting the migration of dendritic cells. During the elicitation phase, mast cells promote non-allergen-specific inflammation, and enhance allergen-specific inflammation in moderate ACD, but inhibit allergen-specific inflammation in severe and chronic ACD. In addition to the IgE-Fcε receptor I-histamine pathway, Mas-related G-protein coupled receptor B2/X2 (MrgprB2/X2) can mediate the activation of mast cells, leading to the release of tryptase to drive non-histaminergic itch, and may serve as a new target for the treatment of ACD.

Objective To study the delayed gastric emptying for patients underwent pylorus-preserving pancreaticoduodenectomy and standard Whipple procedure.Methods Clinical data of 401 consecutive patients who underwent standard Whipple procedure/pylorus-preserving pancreaticoduodenectomy between January 2012 and July 2016 in the First Affiliated Hospital of Harbin Medical University were retrospectively collected and analyzed.Using the independent-samples t test,x2 test or Fisher's exact test,Mann-Whitney test and other statistical methods to compare the postoperative complications between pylorus-preserving pancreaticoduodenectomy and standard Whipple procedure group.Results Compare with standard Whipple procedure group,delayed gastric emptying after pylorus-preserving pancreaticoduodenectomy occurred in 8 of 35 patients (22.9％),obviously higher than it after standard Whipple procedure occurred in 40 of 366 patients (10.9％) (P =0.038).Other postoperative complications were not significantly different (P ≥ 0.05).Each level of delayed gastric emptying after pyloruspreserving pancreaticoduodenectomy and standard Whipple procedure were not significantly different (P ≥ 0.05),but the average recovery time of delayed gastric emptying after pylorus-preserving pancreaticoduodenectomy (12.13 ± 3.09) d was obviously shorter than it after standard Whipple procedure (17.28 ± 9.63) d (P =0.009).Conclusions Pylorus-preserving pancreaticoduodenectomy increases the risk of delayed gastric emptying,but it does not increase severity delayed gastric emnptying by each level.The recovery time of delayed gastric after pyloruspreserving pancreaticoduodenectomy is shorter.

Objective To investigate the mechanism of recurrent laryngeal nerve injury during total thyroidectomy.Methods The clinical data of 36 patients suffering from recurrent laryngeal nerve injury in total thyroidectomy from 2003 to 2014 was analyzed retrospectively.Results 21 cases had temporary recurrent laryngeal nerve injury while 16 cases had permanent injury.The cases of injury included giant thyroid goitre,with variation of recurrent laryngeal nerve,undergoing secondary surgery,with tumor invasion and complicating thyroiditis.During the first surgery,the incidence of temporary recurrent laryngeal nerve injury was 0.43％,and the incidence of permanent damage was 0.27％.The temporary and permanent injury incidence of secondary surgery after initial subtotal thyroidectomy was 4.59％ and 4.59％,respectively.For patients with grade 3 thyroid gland,that was 1.81％ and 0.30％,respectively and 0.51％,0.72％ respectively in malignant cases.In cases complicating thyroiditis temporary recurrent laryngeal nerve injury occurred in 1.01％.Conclusions There is increased risk of recurrent laryngeal nerve injury in giant goiter cases undergoing secondary operations.Hence it is suggested that initial surgical procedure be hemithyroidectomy or total thyroidectomy