Adult ; Bronchoalveolar Lavage ; methods ; Bronchoalveolar Lavage Fluid ; Humans ; Male ; Middle Aged ; Pneumoconiosis ; therapy

AIM:To investigate the value of 3D-optical coherence tomography (OCT) in the diagnosis of macular disease before phacoemulsification.METHODS:Clinical records of 423 cataract patients (512 eyes) who underwent phacoemulsification combined with intraocular lens implantation in our hospital from June to December in 2015 were retrospectively analyzed.In addition to preoperative routine examination of fundus, Topcon 3D-OCT 2000 was used to examine the macula, the detection rate of macular disease was compared, risk factors of cataract combined with macular disease were analyzed.RESULTS:The OCT image results of 305 cases (384 eyes, 72.1%) were successfully obtained, 133 cases showed macular disease (146 eyes), the detection rate was 28.5% (95%CI:27.64%-29.40%);the macular disease of 35 cases (37 eyes) were detected by routine examination of fundus before operation, the detection rate was 7.2% (95%CI:6.72%-7.74%);the detection rate of 3D-OCT was significantly higher than routine examination of fundus for macular disease (χ2=79.05, P<0.01).Female, over 65 years old, surgical history of diseased eye, and high myopia were risk factors of cataract combined with macular disease, the relative risk was 1.705 (95%CI:1.091,2.664), 1.893 (95%CI:1.219,2.939), 6.593 (95%CI:2.027,21.447) and 95%CI:5.130 (2.841,9.263) respectively, the risk of cataract combined with macular disease showed an increasing trend with rising age.CONCLUSION:In preoperative examination of cataract patients, 3D-OCT has higher sensitivity in the detection of macular disease, especially for women, over 65 years old, high myopia and surgical history of diseased eye, 3D-OCT can be used as a routine preoperative examination.

Rho kinase, also named Rho associated kinase, is one of the important kinases found in recent ten years, which regulates cell movement including cytodieresis, contraction, adherence, migration, secretion, etc. The Rho kinase up-regulation in activity or in expression involves the progress of cardio-cerebro-vascular disorders, and Rho kinase has been regarded as a key target in drug discovery and development. With more and more Rho kinase inhibitors popping up, Rho kinase inhibitors are becoming a promising solution to cardiovascular diseases, neural disorders and other diseases. The article reviews the advances in the study of Rho kinase pathway andits inhibitors, other information associated with Rho kinase is also discussed.
1-(5-Isoquinolinesulfonyl)-2-Methylpiperazine ; analogs & derivatives ; chemistry ; pharmacology ; therapeutic use ; Amides ; chemistry ; therapeutic use ; Antihypertensive Agents ; pharmacology ; therapeutic use ; Cardiovascular Diseases ; drug therapy ; Humans ; Pyridines ; chemistry ; therapeutic use ; Signal Transduction ; Subarachnoid Hemorrhage ; drug therapy ; Vasodilator Agents ; pharmacology ; therapeutic use ; rho-Associated Kinases ; antagonists & inhibitors ; chemistry ; metabolism

OBJECTIVETo examine the differences in the expressions of c-kit, HIWI and vimentin in the testis and epididymis of rats aged different months, investigate the regular changes in the expression of characteristic molecules in the ripening and senescent process of the testis and epididymis, and provide experimental evidence for studies on the aging of the male reproductive system.

METHODSSprague-Dawley male rats were divided into a young group (6-month-old, n=10), an adult group (12-month-old, n=10) and an aged group (24-month-old, n=10). The immunohistochemical SP method was used to examine c-kit, HIWI and vimentin in the testis and epididymis of the rats.

RESULTSThe positive immunohistochemical reaction to c-kit was observed mainly in spermatogonia, weakly in other cells and also in the epithelia and lumens of the epididymis. The abundant expression of HIWI was detected in all stages of spermatogenic cells in the testis and epididymis of the 6-month-old and 12-month-old rats. Moreover, spermatogonias and primary spermatocytes displayed intense expression. Sertoli cells, Leydig cells, myoid cells and vascular endothelial cells (VEC) were also HIWI-positive cells. But the positive expression decreased with age in the testis and epididymis of the 24-month-old rats (P > 0.05). vimentin expression was weak in the testis and epididymis of the 6-month-olds but increased significantly in the 24-month-olds (P > 0.01).

CONCLUSIONThe expressions of c-kit and HIWI decreased in the testis and epididymis of the 24-month-old rats, while vimentin expression increased markedly with age. The results suggest that the aging of the testis and epididymis is closely related to the abnormal transduction of cell signals.

Age Factors ; Animals ; Epididymis ; metabolism ; Immunohistochemistry ; Male ; Proteins ; metabolism ; Proto-Oncogene Proteins c-kit ; biosynthesis ; Rats ; Rats, Sprague-Dawley ; Testis ; metabolism ; Vimentin ; biosynthesis

BACKGROUNDA fatal complication after liver transplantation is anastomotic embolization of the hepatic artery. In order to solve this problem, the portal venous arterialization (PVA) is used to reconstruct the hepatic arterial blood flow. The purpose of this study was to investigate the influence of PVA on rats with acute occlusion of hepatic artery.

METHODSRat PVA models were established and then randomly divided into Group 1 (control group), Group 2 (jaundice group), Group 3 (bile duct recanalization group), and Group 4 (portal vein arterilization group). Recanalization of the common bile duct and PVA were performed 5 days after bile duct ligation in the rats. The influence of the PVA on general conditions, hepatic changes of structure and function, portal vein pressure and hepatic micrangium were observed for one month.

RESULTSFive days after common bile duct ligation the serum bilirubin, transaminase and alkaline phosphatase levels were significantly increased. Compared with group 1, there was a statistically significant difference (P < 0.01). These rats then underwent bile duct recanalization and PVA. After a month, the liver functions and microscopic structures completely returned to normal and, compared with group 1, there was no statistically significant difference in portal vein pressure (P > 0.05). Vascular casting samples showed that hepatic sinusoids were slightly thicker and more filled than normal ones and although they had some deformations, the hepatic sinusoids were still distributed around the central vein in radial form.

CONCLUSIONWithin a month after operation, bile duct recanalization and PVA do not show obvious adverse effects on liver hemodynamics and hepatic micrangium, and the liver function and microscopic structure can return to normal.

Animals ; Arterial Occlusive Diseases ; physiopathology ; surgery ; Arteriovenous Shunt, Surgical ; methods ; Blood Pressure ; Hepatic Artery ; physiopathology ; surgery ; Liver ; blood supply ; pathology ; physiopathology ; Liver Circulation ; Male ; Portal Vein ; physiopathology ; surgery ; Random Allocation ; Rats ; Rats, Sprague-Dawley

Hedyotis hedyotidea has been traditionally used for the treatment of arthritis, cold, cough, gastro-enteritis, headstroke, etc. But few studies have screened the active compounds from extracts of H. hedyotidea. In this study, the structure of the chemical constituents from stems of H. hedyotidea were determined and the immunosuppressive activity of the compounds was evaluated. The compounds were separated and purified with silica gel, gel column chromatographies and preparative HPLC, and their structures were identified by spectral methods such as MS and NMR. Eleven compounds were obtained and identified as(6S,9S) -vomifoliol (1), betulonic acid (2), betulinic acid (3), betulin(4), 3-epi-betulinic acid (5), ursolic acid (6), β-sitosterol (7), stigmast-4-en-3-one (8), 7β-hydroxysitosterol (9), (3β,7β) -7-methoxystigmast-5-en-3-ol (10) and morindacin (11). This is the first report of compounds 1, 2, 4, 8, 9, 10 and 11 from H. hedyotidea. Compounds 1, 2 and 8-11 were firstly isolated from the genus Hedyotis, and compounds 9 and 10 were isolated from the family Rubiaceae for the first time. The immunosuppressive activity of these compounds was tested using the lymphocyte transsormationtest. Compounds 4, 6 and 9 showed significant immunosuppressive activity.
Animals ; Drugs, Chinese Herbal ; chemistry ; isolation & purification ; pharmacology ; Hedyotis ; chemistry ; Immunosuppressive Agents ; chemistry ; isolation & purification ; pharmacology ; Lymphocytes ; drug effects ; immunology ; Male ; Mass Spectrometry ; Mice ; Mice, Inbred C57BL ; Molecular Structure ; Plant Stems ; chemistry

Objective To investigate the impact of multi-b-value on texture features of DWI in liver cirrhosis.Methods DWI manifestations of liver cirrhosis in 37 patients were analyzed retrospectively,and DWI of 27 healthy volunteers (control group) were enrolled as controls.The b values were set as 0,20,50,100,200,400,800,1 000,1 200 and 1500 s/mm2,respectively.Three ROIs at different levels of every set image were selected,and 37 texture features within these ROIs were extracted.Unstable texture features affected by different b-values were screened with the percent coefficient of variation (％COV),and the fitting degree between the unstable texture features and b values were analyzed with exponential fitting.Results Among 37 texture features,20 (20/37,54.05 ％) were unstable.With the increase of b values,exponential upward trend was found in 10 texture features,exponential downward trend was found in 4 texture features,and the relative trends could not be defined in other 6 unstable texture features.Conclusion The b values of DWI impact the texture features in liver cirrhosis.Correlations exist among some texture features and b values.

Objective To explore the existence of natural loci on Marmota himalayana plague in Sichuan province and to provide basis for prevention and control of the disease. Methods Both epidemiological investigation and laboratory tests were used to provide the host animal and fleas of the vectors with Yersinia pestis carriers. Results 30 species of animals were found to belong to 10 orders. Ochotona curzoniae and M.himalayana were the most common ones while 7 species of the fleas belonged to 7 genera and 3 families. M.himalayana was the main reservoirs while Callopsylla dolabris and Oropsylla silantiewi served as vectors. The 13 Y.pestis were identified from 43 Marmota samples. 8 samples were identified under IHA, with the highest titer of herding-dogs serum as 1 : 10 240. 19 samples were F1 antigen positive using RIHA and the highest titer of M.himalayana serum was 1:409 600. The major foci was 4545 km2, distributed at Dege county in Sichuan province. Conclusion We have confirmed the existence of natural foci on M. Himalayana plague in Sichuan province.

Objective To investigate the values of nucleoprotein transformation in sperm for predicting recurrent abortion.Methods A total of 521 infertile couples with complete test indicators on fertility were selected from the reproductive medical clinic of our hospital from 2019 to 2022,among which the ages of the male were from 23 to 56 years old.The following factors causing recurrent abortion were excluded,including the age of woman,body mass index,metabolic disease,antiphospholipid syndrome,uterine and accessory abnormalities,history of caesarean section and intrauterine myoma/cervical conectomy,peripheral blood chromosome abnormalities of both the couple,and adverse life history,such as smoking/alcohol abuse.According to the abortion situation,they were divided into the recurrent abortion group(≥two spontaneous abortions),one spontaneous abortion group and no abortion group.Tukey's multiple comparison was performed to compare the differences of nucleoprotein transformation of sperm in each group by using GraphPad6.0 sta-tistical software.The Pearson method was used to analyze the correlation between nucleoprotein transformation and recurrent abortion.The predictive values of nucleoprotein transformation in recurrent abortion were analyzed by the parameters of sensitivity,specificity,positive predictive value,negative predictive value,Youden index and odd ratio.Results The percentages of abnormal nucleoprotein transformation in recurrent abortion group[(33.31±13.83)％]were significantly higher than those in non-abortion group[(26.85± 15.38)％]and the one abortion group[(28.20±12.50)％,P＜0.05].Pearson correlation analysis showed that there was a significant positive correlation between abnormal nucleoprotein transformation and recurrent abortion.The sensitivity and specificity of nucleoprote-in transformation for predicting recurrent abortion were 45.24％and 73.64％,respectively.All of the data of positive predictive value(15.70％),negative predictive value(92.53％),Youden index(18.88％)and odd ratio(2.31)of nucleoprotein transformation in predicting recurrent abortion were higher than those of high DNA stainability(10.64％,90.31％,1.05％and 1.11).Conclusion In the spouses of patients with recurrent abortion,the immaturity of sperm nuclear protein is significantly increased and significantly posi-tively correlated with recurrent abortion.The abnormal nucleoprotein transformation of sperm may be the important factor of recurrent a-bortion in males,and it has high predictive value for recurrent spontaneous abortion in clinical practice.

The development of quality Chinese medicine is an important way to improve the quality of Chinese medicine, and ensure the safety and effectiveness of Chinese medicine. This article systematically elaborates the definition, classification, standard and mana-gement certification strategy of quality Chinese medicine. We present the quality Chinese medicine which is higher quality than that of eligible Chinese medicine based on quality control standards. Quality Chinese medicine is strictly in accordance with management procedures, likely GAP and GMP et al, during the productive process, which quality indicators is higher than that of the current relevant national quality standards, such as Chinese Pharmacopoeia(ChP) et al; its limited indicators such as exogenous pollutants and endogenous toxic substances are lower than that of the current relevant national quality standards, likely ChP et al; meanwhile these Chinese herbal medicine, medicinal pieces, patent medicines, and health products and foods with Chinese medicine raw materials are been certificated by quality Chinese medicine. At the same time, this article systematically expounds the five major management systems of quality Chinese medicine, including technical training management for practitioners, productive process management, standard mana-gement, quality inspection and certification management, and product traceability management. And we put forward strategies to improve the supervision and management system, and promote the standardization and development of quality Chinese medicine by improving the technical management system of quality Chinese medicine, strengthening the quality management system and six sigma(6σ) management in the company. These strategies will provide a reliable basis and effective way to improve the quality of Chinese medicine.
Drugs, Chinese Herbal ; Food ; Medicine, Chinese Traditional ; Quality Control ; Reference Standards