To evaluate the visual performance of the patients with traumatic corneal astigmatism, after the treatment of topography guided off-flap epipolis laser in situ keratomileusi (off-flap Epi-LASlK).
●METHODS: This prospective clinical study was comprised of 21 eyes of 21 patients with irregular corneal astigmatism caused by trauma, they were treated by off-flap Epi - LASlK from July 2012 to December 2013. The data included uncorrected visual acuity ( UCVA), best spectacle - corrected visual acuity ( BSCVA ), contrast sensitivity 1, 6mo before and after surgery; the healing area percentage of corneal epithelia, the healing time of corneal epithelia and pain score at 3d after surgery.
●RESULTS: Postoperative 1mo both UCVA and BSCVA were improved significantly than that before surgery (t =15. 703, 4. 351, P< 0. 05); Compared with the 1mo after surgery, UCVA at 6mo after surgery raised significantly (t= 6. 867, P <0. 05). There was no statistical significance between 6 and 1mo after surgery about BSCVA (t= 1. 497, P = 0. 140 ). After surgery, mean spherical equivalent (SE) was reduced from -2. 43±3. 02D to -0. 23±0. 49D (P<0. 05), and the mean cylinder was reduced from -1. 86± 2. 23D to - 0. 46 ± 1. 03D (P< 0. 05). Postoperative 1mo,4 kinds of spatial frequency and contrast sensitivity had no significant difference compared with the preoperative (P>0. 05 ). Postoperative 6mo except the 3c/ d spatial frequency, the remaining 3 spatial frequency contrast sensitivity compared with those before operation were significantly improved ( P < 0. 05 ). The healing area percentage of corneal epithelia was 92. 46% ±8. 24% (80% -100%) at 3d after surgery; The healing time of corneal epithelia was 3. 50 ± 1. 56d; Pain scores at 3 and 7d after surgery was 1. 54±1. 32 and 0. 04±0. 64, respectively.
●CONCLUSlON: Topography-guided off-flap Epi-LASlK is safe and effective in treating the patients with traumatic corneal irregular astigmatism. The operation can improve both the contrast sensitivity and the visual performance.

OBJECTIVETo explore the relation between the positive rates of autoantibodies against beta(1) adrenergic receptor (beta1-receptor)and (M2-receptor) with urinary albumin excretion rate (UAER) in type 2 diabetes patients with refractory hypertension.

METHODSAutoantibodies against beta(1)- and M(2)-receptor as well as autoantibodies were determined in type 2 diabetes patients with (n = 136) or without (n = 111) refractory hypertension, hypertensive patients without renal failure (n = 60) and healthy control subjects (n = 40, control) by ELISA.

RESULTSThe positive rates of the autoantibodies against beta1-receptors (44.9%) and M(2)-receptor (37.5%) in patients with type 2 diabetes with refractory hypertension were significantly higher than those in patients with type 2 diabetes without refractory hypertension (27.9% and 24.3%, respectively, all P < 0.05), in patients with hypertension without renal failure (11.7% and 15.0%, all P < 0.01) and in healthy controls (8.3% and 7.5%, all P < 0.01). In type 2 diabetes patients with refractory hypertension and renal failure (UAER > or = 200 microg/min), the positive rates of the autoantibodies against beta(1)-receptor (87.1%, 27/31) and against M(2)-receptor (67.7%, 21/31) were significantly higher than those in type 2 diabetes patients with refractory hypertension but without renal failure (UAER 20 - 199 microg /min, 46.7%, 28/60 and 41.7%, 25/60, respectively, all P < 0.05).

CONCLUSIONThe serum beta(1)- and M (2)-receptor autoantibodies are positively associated with the UAER level and suggest that these autoantibodies against beta(1) and M(2)-receptor may play important roles in the pathogenesis of the type 2 diabetes with refractory hypertension.

Aged ; Albuminuria ; etiology ; Autoantibodies ; analysis ; Diabetes Mellitus, Type 2 ; complications ; immunology ; Female ; Humans ; Hypertension ; complications ; immunology ; Male ; Middle Aged ; Receptor, Muscarinic M2 ; immunology ; Receptors, Adrenergic, beta-1 ; immunology

BACKGROUNDCervical keratinocytes are recovered at a low numbers and frequently associated with contaminating human fibroblasts which rapidly overgrow the epithelial cells in culture with medium supplemented with 10% fetal bovine serum (FBS). However, it is difficult to initiate keratinocyte cultures with serum-free keratinocyte growth medium alone because cell attachment can be poor. Therefore, the culture of these cells is extremely difficult. In this study, we described a modified culture medium and coated culture plastics for growing normal human cervical epithelial cells in vitro.

METHODSNormal cervical epithelial tissue pieces were obtained and digested with type I collagenase to dissociate the cells and a single cell suspension produced. The cells were cultured on plastic tissue culture substrate alone or substrate coated with collagen type I from rat tail, with modified keratinocyte serum-free medium (K-SFM) supplemented with 5% FBS. After attachment, the medium were replaced with K-SFM without FBS. The expression of basal keratins of the ectocervical epithelium, K5, K14 and K19 were assayed by immunofluorescence with monoclonal antibodies to identify the cell purity.

RESULTSOur results indicate that cells attached to the culture plastic more quickly in K-SFM supplemented with 5% FBS than in K-SFM alone, as well as to tissue culture plastic coated with collagen type I than plastic alone. The modified medium composed of K-SFM and 5% FBS combined with a specific tissue culture plastic coated with collagen type I from rat tail was the best method for culture of normal cervical epithelial cells. K5, K14 and K19 were assayed and keratinocyte purity was nearly 100%.

CONCLUSIONA novel, simple and effective method can be used to rapidly obtain highly purified keratinocytes from normal human cervical epithelium.

Cell Culture Techniques ; methods ; Cervix Uteri ; cytology ; Epithelial Cells ; cytology ; Female ; Humans ; Keratinocytes ; cytology

OBJECTIVETo evaluate the prevalence of TET2 gene mutation in acute myeloid leukemia (AML) patients, and analyze their clinical characteristics and prognosis.

METHODSPolymerase chain reaction (PCR) and direct sequencing were used to sequence exon 3 to 11 of TET2 gene.

RESULTSAmong 96 AML patients, TET2 gene mutation was detected in 13 (13.54%) patients (95%CI 6.70% - 20.38%). The median age was 54 years in mutated group and 41 years in unmutated group (P = 0.010). Mutated and unmutated patients did not significantly differ in gender, white blood cells (WBC) count at diagnosis, platelet count, PB and BM blast percentage and chromosome karyotype, excepting for hemoglobin level 84 (70 - 108) g/L in mutated group versus 70 (55 - 87) g/L in unmutated group (P = 0.032). TET2 gene mutation had no significant correlation with C-KIT, FLT3, JAK2V617F mutations, but did with NPM1 mutation. TET2 mutated patients had lower CR1 rate and 2-year overall survival than unmutated in non-M(3) patients (P < 0.05).

CONCLUSIONSTET2 gene mutation is more prevalent in older AML patients and has a certain correlation with clinical characteristics and outcome. It may be a molecular marker for poor prognosis in AML.

Adolescent ; Adult ; Aged ; Aged, 80 and over ; DNA Mutational Analysis ; DNA-Binding Proteins ; genetics ; Exons ; Female ; Humans ; Karyotype ; Leukemia, Myeloid, Acute ; genetics ; Male ; Middle Aged ; Proto-Oncogene Proteins ; genetics ; Young Adult

OBJECTIVETo establish a novel model of lumbar disc degeneration on the early stage in the rhesus monkey using percutaneous needle puncture guided by CT.

METHODS(1) Thirteen rhesus monkeys aged from 4 to 7 years, female 7 and male 6 were selected for establishing a model of the early stage of lumbar disc degeneration. (2)13 monkeys, 91 discs were divided into 3 groups: 64 discs from L1/2 to L5/6 were percutaneous punctured with a needle 20G as experimental group and 1 disc with a needle 15G as puncture control group and 26 discs were not be punctured from L6,7 to L7-S1 as control group. (3) Lumbar disc localization for needle puncture was guided by CT. All discs were examined by MRI, the HE, Masson's trichrome, Safranine-O and immunohistochemical staining of type II collagen before disc puncture and after puncture at 4, 8 and 12 weeks.

RESULTSMRI: (1) Experimental group: Pfirmann's Grade I was shown at postoperation 4, 8 and 12 weeks; (2) Puncture control group: Grade III was shown at postoperation 4 weeks and Grade IV at 8 weeks; (3) CONTROL GROUP: Grade I was shown at postoperation 4, 8 and 12 weeks. Histological examination: (1) In experimental group, there was no any change at postoperation 4 weeks, and the cell population of the nucleus was decreased at 8 weeks and more decreased at 12 weeks in HE. (2) There was no any change at postoperation 4 weeks, the clefts among the lamellae of the annulus fibrosus (AF) were shown at 8 weeks and more wider of the clefts of AF at 12 weeks in Masson's trichrome. (3) No any change was shown at postoperation 4 weeks, proteoglycan were progressively decreased at 8 and 12 weeks in Safranine-O. (4) No statistically significant difference in positive rate was observed at 4 and 8 weeks compared with control group in immunohistochemical staining of type II collagen. There was statistical difference at 12 weeks compared with control group (P<0.05). In puncture control group postoperation 8 weeks, the morphology of cell of nucleus pulposus was not clear in HE. The wider clefts of lamellae of the AF were shown in Masson's trichrome. The proteoglycan was obviously decreased in Safranine-O. Immunohistochemical staining collagen II synthesized was decreased. In normal control group, no any change was shown at 4, 8 and 12 weeks.

CONCLUSIONSThe degeneration of lumbar intervertebral disc on the early stage could be induced by the percutaneous needle puncture (20G) to the annulus fibrosus. The assessment of disc degeneration on early stage is not shown on MRI and only confirmed by histological examination.

Animals ; Disease Models, Animal ; Female ; Intervertebral Disc ; metabolism ; pathology ; surgery ; Intervertebral Disc Displacement ; etiology ; metabolism ; pathology ; Lumbar Vertebrae ; surgery ; Macaca mulatta ; Male ; Minimally Invasive Surgical Procedures ; Random Allocation

OBJECTIVETo investigate the intervention effect of Danggui Shaoyao San on rats with cirrhotic ascites, and discuss the effect of arginine vasopressin (AVP) on cirrhotic ascites.

METHODMale SD rats were randomly divided into the control group, the model group, Danggui Shaoyao San low, middle and high dose groups. The cirrhotic ascites rat model was established by CCl4 combined with phenobarbital. Their urines were collected at 24 h to observe urine excretion of each group. Filter papers were used to determine the amount of ascites. The levels of serum alanine aminotransferasa (ALT) , aspartate aminotransferase (AST) were detected by the automatic biochemistry analyzer. Plasma prothrombin time (PT) was evaluated by the blood coagulation analyzer. The concentration of AVP in plasma was detected by enzyme-linked immunosorbent assay (ELISA). Pathological changes in livers were observed by HE staining.

RESULTCompared with the model group, the Danggui Shaoyao San group showed significant improvement in live indexes, with notable decrease in serum ALT and AST and the time of PT, improvement in liver pathological changes. Simultaneously, the amount of ascites decreased to varying degrees, with notable increase in urine in 24 h and decrease in AVP concentration in plasma.

CONCLUSIONDanggui Shaoyao San can notably improve liver functions of rats with cirrhotic ascites, reduce the generation of ascites and delay the progress of liver pathological changes. Its mechanism may be related to AVP.

Animals ; Arginine Vasopressin ; blood ; Ascites ; blood ; complications ; drug therapy ; physiopathology ; Drugs, Chinese Herbal ; pharmacology ; therapeutic use ; Liver ; drug effects ; enzymology ; metabolism ; physiopathology ; Liver Cirrhosis ; complications ; Male ; Rats ; Rats, Sprague-Dawley

Objective To observe effects of Heyutai Fuzhu Jiangtang Tablets combined with metformin in insulin resistance (IR); To discuss its mechanism of action. Methods 6–7 week old male ZDF (fa/fa) rats were randomly divided into model group,metformin group,Heyutai Fuzhu Jiangtang Tablets group(Jiangtang Tablets group),and metformin combined with Heyutai Fuzhu Jiangtang Tablets group.ZDF(fa/+)rats were chosen as normal group.Each medication group was given relevant medicine for gavage for 6 weeks. Body weight, FBG, TG, TC, FFA, FINS, HOMA-IR, OGTT and HE staining were tested. HE staining was used to observe the pathological changes of skeletal muscle. RT-PCR and Western blot were used to detect skeletal muscle corresponding gene and protein expression. Results Compared with Jiangtang Tablets group and metformin group, TC, FFA, FBG, and HOMA-IR in metformin combined with Heyutai Fuzhu Jiangtang Tablets group decreased significantly (P<0.05, P<0.01). Blood glucose level and AUC significantly decreased at each time point in OGTT. HE staining of skeletal muscle fibers arranged in order; nucleus increased and internal movement was not significant, without obvious infiltration of inflammatory cells. Expressions of skeletal muscle InsR, Akt, and Glut4 mRNA expression increased (P<0.05, P<0.01). Expressions of skeletal muscle p-InsR, p-Akt, and Glut4 protein expression increased (P<0.05, P<0.01). Conclusion Heyutai Fuzhu Jiangtang Tablets combined with metformin can improve IR in type 2 diabetic rats, and the effect is better than single-application.

Objective: To investigate the safety and efficacy of embedding the stump of gastroduodenal artery between the left lateral lobe of the liver and the left caudate lobe to prevent bleeding after laparoscopic pancreaticoduodenectomy. Methods: The clinical data of 41 patients who underwent laparoscopic pancreaticoduodenectomy at the second Hospital of Hebei Medical University from October 2021 to April 2022 were analyzed retrospectively.There were 27 males and 14 females, aged (63.0±9.2)years (range: 48 to 78 years), and the body mass index was (24.1±3.2)kg/m² (range: 15.4 to 31.6 kg/m²). After routine laparoscopic pancreaticoduodenectomy, the stump of gastroduodenal artery was embedded between the left lateral lobe and the left caudate lobe of the liver, and the hepatic parenchyma of the left lateral lobe and the left caudate lobe were sutured with absorbable sutures.The occurrence and recovery of postoperative complications (pancreatic fistula, biliary fistula, postoperative abdominal bleeding, abdominal infection, liver abscess) were observed. Results: All the operations of 41 patients were completed successfully.The operation time was (277.5±52.0) minutes (range: 192 to 360 minutes). The entrapment time of gastroduodenal artery stump was (3.1±0.6) minutes (range: 2.3 to 4.2 minutes), and the intraoperative blood loss (M(IQR)) was 300 (200) ml (range: 50 to 800 ml).The results of ultrasound examination of hepatic artery on the first day after operation showed that the blood flows of hepatic artery were unobstructed.Postoperative pancreatic fistula occurred in 3 cases, including grade B pancreatic fistula in 2 cases (1 case with abdominal infection) and biochemical leakage in 1 case. Three patients with pancreatic fistula were discharged successfully after continuous abdominal drainage. There was no biliary fistula, abdominal bleeding, abdominal infection, liver abscess or postoperative liver dysfunction. Conclusion: The encasement of the gastroduodenal artery stump by the left outer and left caudate lobes of the liver may be an effective way to prevent bleeding from the rupture of the gastroduodenal artery stump after laparoscopic pancreatoduodenectomy, which is easy and safe to perform.
Female ; Male ; Humans ; Hepatic Artery ; Pancreaticoduodenectomy ; Pancreatic Fistula ; Retrospective Studies ; Laparoscopy ; Liver Abscess ; Intraabdominal Infections ; Postoperative Hemorrhage/prevention & control*

Objective: To establish HPLC fingerprint of Notopterygii Rhizoma et Radix with different commercial specifications and to provide the basis for the division of commercial grades and the quality control of Notopterygii Rhizoma et Radix on the market. Method: The market investigation and literature research were used to understand the existing situation of Notopterygii Rhizoma et Radix goods.Notopterygii Rhizoma et Radix goods were divided into three commercial specifications according to the source and appearance,such as Canqiang,Tiaoqiang and Datouqiang.Fingerprint of Notopterygii Rhizoma et Radix with different commercial specifications was established by HPLC-PDA,the mobile phase was consisted of acetonitrile-0.3% acetic acid in a gradient elution mode.Similarity evaluation system for chromatographic fingerprint of traditional Chinese medicine(version of 2004A) was used to confirm the common peaks and evaluate the similarity.SPSS 19.0 statistical software was used to make principal component analysis(PCA) for HPLC fingerprint pattern. Result: The common mode of fingerprint for Canqiang,Tiaoqiang and Datouqiang were established separately.A total of 22 common peaks were marked in Canqiang,23 common peaks were marked in Tiaoqiang,29 common peaks were marked in Datouqiang.The result of similarity evaluation and PCA showed that the quality of Notopterygii Rhizoma et Radix with the same commercial specification was stable.There were great differences in chemical compositions and their contents among Notopterygii Rhizoma et Radix with different commercial specifications. Conclusion: The fingerprint method can well distinguish commercial specifications of Notopterygii Rhizoma et Radix,and it can provide the basis for the division of commercial grades and the quality control of Notopterygii Rhizoma et Radix.