Urethra rerouted under corpora cavernosus anastomotic urethroplasty for treatment of complex posterior urethral strictures / 中华泌尿外科杂志

Objective:To explore the outcomes of urethra around corpora cavernosus anastomotic urethroplasty for the treatment of complex posterior urethral strictures.Methods:Between June 2008 and June 2020, 35 patients with complex posterior urethral strictures were treated using urethra rerouted under one corpora cavernosus anastomotic urethroplasty. The patients’ age was 3-54 years(mean 23.2 years), the urethral stricture or loss length was 4-7 cm(mean 5.2 cm), and 6 patients associated with urethrorectal fistula. The technique involved: ①The anterior urethra is dissected long more than 5 cm, separation of the proximal corporeal bodies, inferior pubectomy and the dissected proximal urethra.②A channel around the left crus of the penis through the inferior pubectomy is separated and urethra rerouted under left corpora cavernosus to allow a tension-free anastomosis to the proximal urethra.Results:Two patients lost follow-up; the remainder 33 patients were followed-up for 3 to 144 months(mean 37 months). Thirty-two patients could void normally(97%), The examination of maximal urinary flow rates(Q max) were taken in 21 patients, of whom Q max was 13.6-35.5 ml/s (mean 17.5 ml/s) in 7 children and 16.3-77.6 ml/s(mean 27.9 ml/s) in 14 adult patients. All 6 patients associated with urethrorectal fistula successful repaired, of these patients 1 had died of hemorrhage of brain 6 years postop. One patient developed urethral stenosis postoperatively. Continence was achieved in 29 patients, the remaining 3 patients had incontinence from mild to moderate. Conclusions:Urethra rerouted under left corpora cavernosus anastomotic urethroplasty is not only an effective surgical salvage option, with low recurrent rate for patients with complex posterior urethral strictures, but also do not cause curve and affect growth of corpora cavernosus.

Diagnostic value of breast imaging reporting and data system combined with wire-guided localization biopsy for breast microcalcifications in impalpable breast cancer / 肿瘤研究与临床

Objective To explore the diagnosis value of X-ray breast imaging reporting and data system (BI-RADS) combined with wire-guided localization biopsy for breast microcalcifications in impalpable breast cancer.Methods 192 palpation negative patients with 205 microcalcification lesions were detected by mammography.All lesions were classified according to BI-RADS descriptors for calcification and were categorized by the BI-RADS.The patients with BI-RADS category 4a and above underwent X-ray positioning guide wire-guided biopsy and pathological diagnosis.Results In 205 microcalcification lesions,74 (36.1％) were malignant lesions,131 (63.9 ％) were less than benign lesions.The positive predictive value of malignant breast lesions in clustered,segmental,regional linear branching calcifications were higher [83.3 ％ (5/6),100.0 ％ (11/11),100.0 ％ (1/1)],followed by clustered,linear,segmental,regional pleomorphic calcifications [55.9 ％ (38/68),50.0 ％ (1/2),40.0 ％ (8/20) and 33.3 ％ (4/12),respectively].The positive predictive values of malignant in linear branching calcifications and pleomorphic calcifications were significantly higher than those of coarse heterogeneous calcifications,amorphous or indistinct calcifications (x2 values were 34.44,51.87,16.71,29.86,all P ＜ 0.05).The linear branching calcification had the highest possibility.The proportions of malignant lesions in four different types of glands were extremely dense 40.5 ％ (30/74),heterogeneously dense 39.2 ％ (29/74),scattered areas of fibroglandular density 10.8 ％ (8/74) and fat 9.5 ％ (7/74),respectively.Conclusions BI-RADS categorization for breast microcalcification lesions can improve the detection rate of impalpable breast cancer.Linear branching calcification has higher predictive value for malignant lesions.Dense breast is the risk factors of breast cancer,which should be attached great importance.

Isolation and Identification of Platelet by Stepped Centrifugal Method / 现代检验医学杂志

Objective To establish a method for the isolation and identification of platelets.Methods 10 healthy volunteers were selected to collect the EDTA anticoagulant venous blood of 3 tubes,each tube was 2 ml,which was divided into the whole blood cell tube,platelet rich plasma (control group),and stepped centrifugal platelet extract (experiment group).Platelet was isolated by simple centrifugation method(PRP) and stepped centrifugal method.The two groups were full blood count and analyzed by microscopic morphology and platelet activity test.Leukocyte specific HGB gene and platelet mitochondrial ND1 gene content was analyzed by real time PCR.Results Platelets were extracted and detected in control group and experimental group.Platelets were found and white blood cells and red blood cells were not remained in experimental group.Platelets and sporadic white blood cells were found in control group.The platelet pick up rate of experiment group was significantly higher than control group,the difference was statistically significant.Experimental gene content HGB of experiment group was significantly lower than control group,the difference was statistically significant (t=-3.281,-2.865,P＜0.05).ND1 gene content of experiment group higher than the control group,the difference was not statistically significant.There was no significant difference for platelet activity test between experimental group and control group (t=-0.046,-0.799,P＞ 0.05).Conclusion A isolation and identification method of stepped centrifugal platelet was established.The method can be used for the study of platelet gene and the functional analysis of platelets.

Effects of indium exposure on relative content of mitochondrial ND1 gene in human peripheral blood lymphocytes in vitro / 中华劳动卫生职业病杂志

<p><b>OBJECTIVE</b>To study the effects of indium exposure on the relative content of mitochondrial ND1 gene in lymphocytes.</p><p><b>METHODS</b>Venous blood was obtained from 14 healthy workers and anticoagulated with heparin. Blood lymphocytes were separated and divided into three tube cultures. For two tubes in the exposed group, indium chloride was added to final concentrations of 0.2 mmol/L and 0.8 mmol/L, respectively. For one tube in the control group, an equal volume of normal saline solution was added. After incubation for 72 h, the relative content of mitochondrial gene in each group was determined using quantitative real-time PCR.</p><p><b>RESULTS</b>Lymphocytes exposed to 0.8 mmol/L indium chloride had a significantly higher relative content of mitochondrial gene than those exposed to 0.2 mmol/L indium chloride and those in the control group (P < 0.05, P < 0.05).</p><p><b>CONCLUSION</b>Lymphocytes exposed to a high concentration of indium and its compounds have an elevated relative content of mitochondrial ND1 gene, indicating increased oxidative DNA damage induced by exposure to a high concentration of indium and its compounds.</p>

Plasma estrogen level and estrogen receptors expression in palatine tonsils in male patients with obstructive sleep apnea hypopnea syndrome / 中华耳鼻咽喉头颈外科杂志

<p><b>OBJECTIVE</b>To detect the plasma estrogen level and estrogen receptors expression in palatine tonsils of male patients with obstructive sleep apnea hypopnea syndrom (OSAHS).</p><p><b>METHODS</b>Seventy-six patients with OSAHS were selected as experimental group, 45 patients with chronic tonsillitis as the control group. The tonsils and adipose tissues in space veli palatin were surgically resected in the experimental group, the tonsils were resected in the control group. The plasma level of estrogen was evaluated in patients of the two groups with chemiluminescence immunoassay respectively. The expression of estrogen receptors (ER alpha, ER beta) in palatine tonsils was detected with immunohistochemical methods in the two groups. The relationships between the expression of estrogen receptors and the patient's age, history of snoring, history of apnea, apnea hypopnea index (AHI), body mass index (BMI), neck circumference, abdominal circumference, blood pressure, smoking, alcohol drinking, the degree of velopharyngeal stenosis, the Epworth sleepiness scale score (ESS), and accompanied systemic diseases were analyzed.</p><p><b>RESULTS</b>The estradiol levels did not show significant statistical difference between the two groups [(94.94 ± 25.54)pmol/L, (104.23 ± 34.75)pmol/L, respectively]. The estrogen levels in OSAHS patients were positively correlated with the patients' AHI (r = 0.76, P < 0.01), showed positively correlated trends with BMI (r = 0.43, P < 0.01), ESS (r = 0.34, P < 0.01), neck circumference (r = 0.31, P = 0.01), abdominal circumference (r = 0.32, P < 0.01); the expressions of ER alpha and ER beta in the experimental group (36.8%, 48.7%) were lower than that in the control group (60.0%, 68.9%) respectively, the difference was statistically significant (χ(2) were 5.17 and 4.69, P < 0.05); the expressions of ER alpha and beta in OSAHS patients showed negatively correlated trends with the patients' AHI (r = -0.48, P < 0.01; r = -0.26, P < 0.05). The expressions of ER alpha in OSAHS patients showed positively correlated trends with the patients' lowest oxygen saturation.</p><p><b>CONCLUSIONS</b>Estrogen may promote the occurrence of male OSAHS. The ER expression in palatine tonsils of male OSAHS patients accorded to the severity of illness, may be associated with hypoxia.</p>

Clinical analysis of endoscopic low - temperature plasma treatment in the chronic hypertrophic rhinitis / 中国基层医药

ObjectiveTo investigate the clinical application value of endoscopic low-temperature plasma treatment in the chronic hypertrophic rhinitis.Methods76 patients with chronic hypertrophic rhinitis were randomly divided into two groups.The observation group were treated with low-temperature plasma treatment,The control group were treated with microwave treatment.The outcomes and the intraoperative and postoperative VAS scores were compared.ResultsThe total effective rate of observation group was 94.7％.The total effective rate of control group was 78.9％.There was statistically significant difference between the two groups ( x2 =4.1455,P =0.0417).The patients intraoperative and postoperative VAS scores were (4.01 ± 0.62 ) and ( 2.39 ± 0.83 ) in the observation group,with were significantly lower than the control group,there were statistically significant differenles between the two groups ( t =3.5655,6.6854,P =0.0006,0.0000 ).ConclusionEndoscopic low-temperature plasma treatment was effective in the treatment of chronic hypertrophic rhinitis,it has high clinical value.

Surgical diagnosis and treatment of renal tuberculosis / 中国综合临床

Objective To study the surgical diagnosis and treatment of renal tuberculosis(TB). Methods The clinical data of 42 cases with renal TB were analyzed retrospectively and the experiences of clinical diagnostic and treatment were summarized. Results Cystic irritation symptoms(78.6% ,33/42)and gross hematuria(64. 3%,27/42)were the most common symptoms in these patients. Abnormal urine were found in 83.3 % cases. Acid-fast stains on urinary sediment were positive in 28.6%(12/42)of cases. The diagnostic accuracy of B-ultrasonicgraphy,IVU,retrograde pyelography and CT examination in these patients were 19.0%(8/42),33.3% (14/42),26.2%(11/42)and 71.4%(30/42)respectively. Among all cases enrolled in the study,6 patients received antiphthisic medicine treatment,3 of them were cured and the other 3 accepted nephrectomy and partial ureterectomy after 6-12 months because of severe renal function impairment 36 cases received surgical treatment. In the 39 cases treated with operation,all of them were proved to carry renal tuberculosis by the postoperative pathological examinations. Conclusions The medical history,urine analysis,image examination should be considered synthetically in the clinical diagnosis of renal tuberculosis. The patients should be followed up closely during antiphthisic treatment period. Seriously damaged or nonfunctioning kidney should be removed promptly.