[ABSTRACT]OBJECTIVETo investigate the methods of diagnosing and treating congenital middle ear cholesteatoma
and causes of misdiagnosis.METHODSThis was a retrospective review of 9 cases of congenital middle ear cholesteatoma in this hospital.RESULTS9 patients all received operative treatment and definite diagnosis was made by histopathologic investigation. The ossicular reconstruction was performed to 6 patients. All of the cases were followed-up for 3 months-2.5 years. A-B gap was 20 dB. After 1 year, no residual or recurrence of cholesteatoma was found in CT scan. All patients had been misdiagnosed. Misdiagnosis rate was 100%.CONCLUSIONCongenital middle ear cholesteatoma is a clinically rare and diagnosis is usually delayed in clinical practice due to the silent nature of the disease in its early stage. Preoperative diagnosis may be based on Levenson diagnostic criteria and CT imaging. Early surgical treatment can obtain a good effect of hearing reconstruction. To avoid misdiagnosis and incorrect treatment, radiological evaluation and careful local examination are really important, which may also avoid serious complications.

AIM: To analyse the effect of Guipi Granule and serum that contains drug on rat's liver. METHODS: Isolated rat's liver perfusion model was used in the experiment for determining AST and ALT content. RESULTS: Middle and low concentration of Guipi Granule (2.5、5.0g/L) didn't cause any chang of enzyme AST、ALT content in isolated rat's liver perfusion liquid. The effect of serum was not different from Guipi Granule groups and control groups. CONCLUSION: The result shows that Guipi Granule doesn't cause damage to the liver cell.

Objective To observe the effectiveness of alprostedil in treatment of diabetic nephropathy and the mechanism of the renal protection of the drug. Methods One hundred patients with diabetic nephropathy due to diabetes mellitus were randomly divided into 2 groups ,50 in treatment group ,and 50 as controls, alprostadil was used intravenously in the Treatment Group for 12 day while routine management of diabetes such as food intake control,physical exercises and oral drugs or injection of insulin was conducted in both of the 2 groups. Urinary albumin were employed for evaluation as well as the side-effects. Results By the end of the trial, urinary albumin was decreased significantly compared with those before intravenous alprostadil treatment or with those in the control group (P<0.05). Conclusion Urinary albumin was decreased significantly after intravenous alprostadil. Therefore,it is a safe and effective drug in the treatment of diabetic nephropathy.

Transoral laser microsurgery (TLM) has developed more than 40 years in the treatment of laryngeal cancer. TLM is especially important in the minimally invasive surgery of laryngeal carcinoma. Compared with the traditional open surgery, it is a major breakthrough, which has the significant advantages such as safety, effectiveness, low rate of local recurrence and high rate of larynx preservation. Not only can cure early laryngeal cancer, but also more and more the use of TLM in advanced supraglottic and glottic laryngeal cancer were reported. This article will review the characteristics, indications, superiority, surgical options and efficacy of the TLM in laryngeal carcinomas.
Carcinoma, Squamous Cell ; Glottis ; Humans ; Laryngeal Neoplasms ; surgery ; Laryngectomy ; Laser Therapy ; Microsurgery ; Neoplasm Recurrence, Local ; Organ Sparing Treatments ; Otorhinolaryngologic Surgical Procedures

Objective To study the function of ventrolateral medulla (VLM) in the treatment of rabbit myocardial ischemia by electroacupuncture at Neiguan point. Methods On the basis of the protection of rabbits against acute myocardial ischemia by electroacupuncture at Neiguan point,the action potential of rabbit's ischemic myocardial cell was observed after the VLM was blocked with Naloxone. Results Compared with the sham operation group, acute myocardial ischemia group and sham VLM block group,the ST segment potential remarkably increased and MAPA, MAPD_~50 ,MAPD_~90 significantly decreased in VLM block group. There were statistic significance(P

Objective: To study the affection of Diallyl trisulfide on cultured human colon carcinoma cell line HT-29 and its mechanism. Methods: The viability of cells after various treatments were determined using the method of MTT. Flow cytometry were used to analyze the change of cell cycle and Bcl-2, Bax levels. Results: The proliferation of human colon carcinoma HT-29 cells were inhibited by Diallyl trisulfide. The inhibition was associated with dose and time dependence. Flow cytometry results showed that: 1) When cells were treated with Diallyl trisulfide at the concentration of 10 ?g/mL for 12 h and 24 h, the percentage of G0/G1 phase cells was decreased and that of G2/M phase cells was significantly increased compared with those in the control group.2) Diallyl trisulfide down regulated Bcl expression, while up-regulated bax expression. Conclusions: It was suggested that Diallyl trisulfide inhibited HT29 cell proliferation. And these were associated with arrest of cell cycles and down regulation of Bcl2/Bax ratio.

Objective To investigate the effect of angiotensin Ⅱ-1 receptor antagonist losartan on expression of tumor necrosis factor-alpha (TNF-?) in the ventricular myocardium in the renovascular hypertension rats. Methods Renovascular hypertension model was obtained by clip left renal artery in Sprague-Dawley(SD) rats. After operation the rats were divided into 3 groups: sham group, two-kidney one clip (2K1C) group, and losartan treatment group(2K1C and losartan 20 mg/kg?d by drinking). Tail blood pressure was determined every week. Animals were euthanized after treatment with losartan for four weeks. Cardiac index(CI)was calculated by HW/BW, and TNF-? protein of ventricle myocardium was determined by ELISA and immunohistochemistry. Results Losartan significantly decreased blood pressure(P

Objective To observe the prevention and treatment of the total flavonoids from Litchi chinensis Sonn( TFL) on hepatic fibrosis induced by dimethylnitrosamine(DMN)in rats, and to explore its mechanism. Methods Ninety SD rats were randomly divided into six groups, normal control group, model control group, colchicine group, high-, medium- and low-dose TFL group(n=15).Expect for normal control group, the other groups were given intraperitoneal injection of 2 mL.kg-1 of 5% dimethylnitrosamine for 4 weeks as the model group. The rats in the normal control group and model control group were given 5 mL.kg-1of 0.9% sodium chloride solution, colchicine group was treated with 0.1 mg.kg-1 colchicine.High-, medium-and low-dose TFL groups were given 200, 100 and 50 mg.kg-1 of TFL.The rats were sacrificed and the livers were harvested and stained with HE and Masson staining to observe pathological changes and liver fibrosis in the same part 6 weeks after all the medicine was given to the rats each day. Immunohistochemistry and Western blotting were used to detect the expression of the transforming growth factor β-Ⅰ/type Ⅱ receptor ( TβRⅠ/Ⅱ) , collagen Ⅰ( Col Ⅰ) and Ⅲ collagen ( Col Ⅲ) . Results Compared with the normal control group, the semiquantitative score of liver fiber and the protein expression of TβRⅠ, TβRⅡ, ColⅠ and Col Ⅲ in the model control group were significantly increased(P<0.01).Compared with the model control group, the protein expression levels of TβR, TβRⅡ, ColⅠand ColⅢwere significantly decreased( P<0.01) in the high-,medium-and low-dose TFL group.The semiquantitative score of liver fiber was significantly decreased( P<0.01) with a dose-effect relationship. Conclusion TFL can inhibit formation of DMN-induced liver fibrosis in rats, which may be related with reduction of expression of TβRⅠ/Ⅱ of hepatic fibrosis promoting factor TGF-β1 , inhibition of the activation and increase of hepatic stellate cells, reduction of the collagen content.

Objective:To detect the related substances in norfloxacin glutamate and sodium chloride injections on the basis of nor-floxacin related substances analysis method described in Chinese Pharmacopoeia 2010 edition to establish a more scientific and feasible method. Methods:HPLC was performed under the following conditions:a Diamonsil C18(2)(250 mm ×4.6 mm,5μm) column, mo-bile phase A of 0. 025 mol·L-1 phosphoric acid-acetonitrile(87∶13), phase B of acetonitrile, with gradient elution at a flow rate of 1. 0 ml·min-1 , the detection wavelength of 278nm and 262nm, the injection volume of 20 μl, and the column temperature of 25℃. Results:Under the HPLC conditions, the samples had good stability and separation. An excellent linear relationship was achieved within the range of 0. 032-3. 179μg·ml-1(r=1. 000 0),the detection limit of impurity A was 0. 159 ng,and the average recovery was 98. 3% with RSD of 0. 64%(n=9). Conclusion:Compared with the existing methods, the gradient elution method is accurate, sen-sitive, specific and reproducible, and can be used in the determination of related substances in norfloxacin glutamate and sodium chlo-ride injections.

As induction chemotherapy goes on,target volume,dose distribution in the surrounding organs at risk (OARs),and target dose conformity all change.Therefore,the question is how to develop reasonable radiotherapy plans in clinical practice.Induction chemotherapy followed by radiotherapy is commonly used around the world,but it is recommended to delineate the target volume based on the gross tumor volume before induction chemotherapy and not to reduce the dose.This point of view lacks the basis of evidence-based medicine.The experts and scholars in China clarify the advantages of radiotherapy plans after induction chemotherapy from the aspects of reducing the target volume,reducing the volume of high-dose region in the target volume,increasing the uniform dose coverage in target volume,reducing dose to OARs,and increasing dose conformity.However,at present,there are no objective data on its long-term efficacy and benefit.Besides,no consensus has been reached on how to delineate the target volume and determine the dose distribution after induction chemotherapy,and further studies are needed.