OBJECTIVETo investigate the effect of hypoxia on the human pulmonary artery smooth muscle cells two pore domain potassium channels TASK-1 and the regulation of non-receptor tyrosine kinase c-Src in this process.

METHODSThe cultured human pulmonary artery smooth muscle cells (hPASMCs) were divided into: normal group, hypoxia 30 minute group, hypoxia 6 hours group and hypoxia 48 hour group, and hypoxia 48 hour + PP2 group, hypoxia 48 hour + PP3 group, hypoxia 48 hour + bpV group. Flow cytometry was used to analyze the cell cycle, RT-PCR and Western blot technique were carried out to detect the expression changes of TASK-1 mRNA and protein in different groups.

RESULTS(1) Cell Cycle Show: Compared with normal control group, with prolonged hypoxia, the percentages of hPASMCs in S phases of cell cycle were increased. While compared with hypoxia 48 hour group, the percentages of hypoxia 48 hour + PP2 group hPASMCs in S phases of cell cycle were decreased. The expression of TASK-1 mRNA on hPASMCs in acute hypoxia 6 hour group was increased, while the expression of TASK-1 protein on hPASMCs in the acute and chronic hypoxia group was decreased, and the expression of TASK-1 mRNA on hPASMCs in the chronic hypoxia group was decreased; After pre-incubation of a potent and selective inhibitor of the Src family of protein tyrosine kinases PP2, the expression of TASK-1 mRNA and protein in hypoxia 48 hour group was increased, however after pre-incubation of the inhibitor of the Src family of protein tyrosine phosphatase bpV, the expression of TASK-1 protein in hypoxia 48 hour group was decreased.

CONCLUSIONHypoxia promotes human pulmonary artery smooth muscle cell proliferation, and non-receptor tyrosine kinase c-Src may participate in the expression of two pore domain potassium channels TASK-1 regulated by hypoxia. Therefore, we hypothesized that TASK-1 channels and c-Src participatein the acute and chronic hypoxic human pulmonary vasoconstriction.

Cell Hypoxia ; Cell Proliferation ; Cells, Cultured ; Humans ; Myocytes, Smooth Muscle ; cytology ; Nerve Tissue Proteins ; metabolism ; Potassium Channels, Tandem Pore Domain ; metabolism ; Pulmonary Artery ; cytology ; RNA, Messenger ; Vasoconstriction ; src-Family Kinases ; metabolism

AIM:To evaluate the clinical therapeutic efficacy of the Qi ming granule for macular edema ( ME ) in diabetic patients after phacoemulsification.
METHODS:In this was a prospective clinical comparison study, 57 diabetic patients ( 76 eyes ) who underwent phacoemulsification were recruited and divided into two groups:treatment group (34 eyes) and control group (42 eyes) . All the patients in treatment group were given oral administration Qi ming granule (4. 5g, tid) and vitamin C ( 0. 1g, tid ) for 6mo postoperatively, while vitamin C ( 0.1g, tid ) for the controls. General clinical examinations, including blood glucose and glycated hemoglobin, as well as comprehensive standardized ophthalmic examinations were performed. Optical coherence tomography ( OCT ) were used to detect macular edema incidence and measure central field retinal thickness.
RESULTS: No significant difference was found in the levels of blood glucose, glycated hemoglobin, course of disease, and macular thickness between the two groups during the initial visits. At the 6th month, 2 eyes ( 6%) eyes had clinically apparent macular edema in treatment group, while 6 ( 14%) eyes had clinically apparent macular edema in control group (P=0. 285). The central subfield retinal thickness values were significantly lower in the treatment group ( 211. 76±41. 21μm ) than those in control group (278. 36±48. 94μm) (P<0. 01).
CONCLUSION:Qi ming granule can significantly reduce the incidences of macular edema and suppresses increasing retinal thickening after phacoemulsification in patients with diabetes mellitus.

Hydrolytic amino acids were extracted by acid hydrolysis method, then derivatized with phenyl isothiocyanate (PITC). And the samples were analysed by HPLC on an Ultimate Prime C18 (4.6 mm x 250 mm, 5 microm) column with gradient elution of 0.1 mol x L(-1) sodium acetate buffer solution (adjusted to pH 6. 5)-acetonitrile (93:7) (A) and acetonitrile-water (8:2) (B) at a flow rate of 1.0 mL x min(-1). Column temperature was 40 degrees C and the detected wavelength was 254 nm. Amino acids derivative solution remained stable in 36 hours. The response was linear for 16 amino acids with a correlation coefficient r > 0.999 5. The average recoveries were 98.01% -101.8%. The method is reliable with good accuracy and repeatability, which is useful for the determination of amino acids in Galli Gigerii Endothelium Corneum.
Amino Acids ; analysis ; Animals ; Chickens ; Chromatography, High Pressure Liquid ; Chromatography, Reverse-Phase ; Endothelium ; chemistry ; Gizzard, Avian ; chemistry

Objective Ambulatory surgery(AS),with its simple procedures and efficient utilization of resources,is an ef-fective means of improving medical efficiency.The aim of this study was to improve the daily procedures of AS by analyzing the perform-ance and results of knee arthroscopy-assisted AS. Methods This study included 188 cases of knee arthroscopic surgery performed from March to August 2017,97 of them treated in the Ambulatory Surgery Center(group A)and the other 91 in the conventional ward (group B). We compared the average hospital stay,hospitalization expenses,and postoperative complications between the two groups of patients. Results Compared with group B,group A showed a significantly shorter hospital stay([95.0±41.3]vs[25.5±0.8]h, P<0.05)and lower hospitalization expenses([28 699.6±11331.1]vs[22231.7±7152.2]RMB,P<0.05). No statistically significant difference was observed in the incidence rate of postoperative complications at 1 and 3 days after surgery,1 case of bleeding in group A and 1 case of leg swelling in group B. Conclusion Ambulatory surgery in our hospital needs to be further improved on the basis of accelerated rehabilitation surgery as the core concept,precision medicine as the approach,and individualized treatment as the goal.

OBJECTIVETo explore the effect of Chinese drugs for supporting essence and strengthening Pi ( SESP) combining with chemotherapy on the quality of life (QOL) in the children with solid tumor.

METHODSUsing a digital table, 146 children with solid tumor were randomized into two groups, 77 in the control group and 69 in the treated group. They received conventional chemotherapy, but to the patients in the treated group, SESP were administered additionally. The patients' scores of QOL and adverse reaction occurred were compared.

RESULTSThe states in the treated group were superior to those in the control group. Statistical analysis showed that in the first year, the two groups were different in terms of somatic function, systemic symptoms, and general status (P<0.05) and also in the occurrence of adverse reaction (P<0.01). In the second year, the difference was shown in aspects of somatic function and adverse reaction occurrence (P<0.05).

CONCLUSIONChinese drugs for SESP combining with chemotherapy could raise tumor patients' QOL by improving their somatic function and clinical symptoms.

Antineoplastic Agents ; therapeutic use ; Child ; Child, Preschool ; Drugs, Chinese Herbal ; adverse effects ; therapeutic use ; Female ; Humans ; Infant ; Male ; Neoplasms ; drug therapy ; Quality of Life

OBJECTIVETo investigate the feasibility of genetic diagnosis of Down's syndrome (DS) using short tandem repeat (STR), and to develop a rapid and accurate method for diagnosing DS.

METHODSQuantitative fluorescence polymerase chain reaction (QF-PCR) was used to amplify STR loci D21S11, D21S1440 and Penta D of 719 samples. Three hundred and eighty-nine samples were peripheral blood, 282 were amniotic fluid, 48 were chorionic villous samples. The products were analyzed using eleterophoresis to detect DS.

RESULTSAmong 652 samples with a normal karyotype, 635 showed 2 bands with a 1:1 ratio or a single band. The remaining 17 samples showed 3 bands, and were regarded as false positive results. For 67 DS samples, 53 showed 3 bands/peaks with a 1:1:1 ratio and 14 showed 2 bands/peaks with a 2:1 ratio. The sensitivity and specificity of STR loci D21S11, D21S1440 and Penta D were 76.12% and 98.62%, 71.64% and 98.93%, 89.55% and 99.85%, respectively. The overall sensitivity and specificity of 3 STR loci were 100% (67/67) and 97.39% (635/652), respectively.

CONCLUSIONCompared with conventional method, author's method is simpler, more stable and rapid, and can be used for large-scale prenatal screening of DS.

Amniotic Fluid ; chemistry ; Chorionic Villi ; chemistry ; Down Syndrome ; diagnosis ; genetics ; Female ; Humans ; Microsatellite Repeats ; Pregnancy ; Prenatal Diagnosis ; methods ; Sensitivity and Specificity

OBJECTIVETo explore the biological effects of infrasound on the polygonal cells in adrenal cortex zona fasciculation in mice.

METHODSThe biological effects of infrasound on the activities of 3beta hydroxysteroid dehydrogenase (3-betaHSDH) and acid phosphatase(ACP) of the polygonal cells in adrenal cortex zona fasciculate were observed when exposure to 8 and 16 Hz infrasound at 80, 90, 100, 110, 120 and 130 dB for 1 day, 7 days and 14 days or 14 days after the exposure.

RESULTSWhen exposure to 8 Hz infrasound, the enzyme activities of 3-betaHSDH increase as the sound pressure levels increase. Only when the sound pressure levels reach 130 dB, the enzyme activities began to decrease exceptionally. When exposure to 16 Hz, 80 dB infrasound, no significant difference between the treatment and control group in the activities of 3-betaHSDH could be observed, but the injury of the polygonal cells had appeared. When exposure to 16 Hz, 100 dB infrasound, the activities of 3-betaHSDH started to increase. The cell injury still existed. When exposed to 16 Hz, 120 dB infrasound, the local tissue damage represented. Fourteen days after the mice exposure to 8 Hz, 90 dB and 130 dB infrasound for 14 days continuously, the local tissue injury of the adrenal cortex zona fasciculation began to recover at certain extent, but the higher the exposure sound pressure level, the poorer the tissue recovery.

CONCLUSIONThe biological effects of infrasound on the polygonal cells in adrenal cortex zona fasciculation response to the frequency of the infrasound are found at certain action strength range, but this characteristic usually is covered by the severe tissue injury. When exposure to infrasound is stopped for a period of time, the local tissue injury of the adrenal cortex zona fasciculation could recovers at certain extent, but the higher the exposure sound pressure level, the more poorer the tissue recovery.

17-Hydroxysteroid Dehydrogenases ; metabolism ; Acid Phosphatase ; metabolism ; Adrenal Cortex ; cytology ; enzymology ; Animals ; Environmental Exposure ; Male ; Mice ; Mice, Inbred BALB C ; Noise ; Zona Fasciculata ; enzymology ; Zona Reticularis ; enzymology

OBJECTIVETo summarize and analyze the experience in diagnosis and treatment of primary malignant tumors of the heart and pericardium.

METHODSThe clinical data of 24 patients with malignant tumors of the heart and pericardium treated in our hospital between Jun. 1980 and Mar. 2008 were retrospectively analyzed and the related literature was reviewed.

RESULTSAll 24 patients received surgical treatment. Radical resection in 10 cases and partial resection in 6 cases were performed, and the remaining 8 patients received only surgical exploration due to unresectable tumors. One patient died of cardiopulmonary failure in early postoperative stage and all the other patients died within 4 years after operation due to recurrence or metastases.

CONCLUSIONEchocardiography, CT, MRI, 3D-CT, CT of coronary artery and cardiac angiography are helpful for the diagnosis and selection of operation mode. Histological examination is necessary for the final diagnosis. Early diagnosis and surgical resection of the tumor as complete as possible, and combination with post-operative radiotherapy and/or chemotherapy may improve the survival of the patients.

Adolescent ; Adult ; Aged ; Female ; Follow-Up Studies ; Heart Neoplasms ; diagnosis ; surgery ; Humans ; Male ; Mesothelioma ; diagnosis ; surgery ; Middle Aged ; Myxoma ; diagnosis ; surgery ; Pericardium ; surgery ; Retrospective Studies ; Survival Rate ; Young Adult

Objective: To evaluate the antidiabetic effect of Callicarpa nudiflora extract in streptozotocin-induced diabetic rats. Methods: The chemical constituents in Callicarpa nudiflora extract were identified by UPLC-Q-TOF-MS. Callicarpa nudiflora extract (0.15 and 0.3 g/kg) was orally administered to streptozotocin-induced diabetic rats for 42 d. The effects of Callicarpa nudiflora extract on body weight, blood glucose, serum insulin, total cholesterol, triglyceride, LDL-C and HDL-C were investigated, and its effect on liver and pancreatic pathology was assessed by histopathological analysis. Moreover, the expression levels of adenosine 5'-monophosphate-activated protein kinase (AMPK), glucose transporter type 4 (GLUT4), phospho-AMPK/AMPK, and p-acetyl-coA carboxylase (P-ACC)/ACC in the skeletal muscles and liver were determined by reverse transcription-polymerase chain reaction, Western blotting, and immunohistochemistry. Results: A total of 34 compounds, including 8 iridoids, 14 phenylpropanoids, and 12 flavonoids, were identified from Callicarpa nudiflora extract. Callicarpa nudiflora extract significantly reduced blood glucose and significantly restored all other biochemical parameters to near normal levels, including serum insulin, total cholesterol, triglyceride, LDL-C, and HDL-C. Callicarpa nudiflora extract improved insulin resistance and reversed the damage in the liver and pancreas caused by diabetes. Furthermore, Callicarpa nudiflora extract increased the expression levels of phospho-AMPK, GLUT4, P-ACC, and insulin receptor substrate-1 and decreased the expression level of PPAR毭 in diabetic rats.Conclusions: Callicarpa nudiflora extract improved oral glucose tolerance, lipid metabolism, insulin resistance, and reversed the diabetes-related damage in the liver and pancreas by activating the AMPK-ACC pathway.

A boy was admitted at the age of 17 months. He had psychomotor retardation in early infancy. Physical examination revealed microcephalus, unusual facies, and a single palmar crease on his right hand, as well as muscle hypotonia in the extremities and hyperextension of the bilateral shoulder and hip joints. Genetic detection identified two pathogenic compound heterozygous mutations, c.8868-1G>A (splicing) and c.11624_11625del (p.V3875Afs*10), in the VPS13B gene, and thus the boy was diagnosed with Cohen syndrome. Cohen syndrome is a rare autosomal recessive disorder caused by the VPS13B gene mutations and has complex clinical manifestations. Its clinical features include microcephalus, unusual facies, neutropenia, and joint hyperextension. VPS13B gene detection helps to make a confirmed diagnosis.
Base Sequence ; Developmental Disabilities ; diagnosis ; genetics ; Fingers ; abnormalities ; Humans ; Infant ; Intellectual Disability ; diagnosis ; genetics ; Male ; Microcephaly ; diagnosis ; genetics ; Muscle Hypotonia ; diagnosis ; genetics ; Mutation ; Myopia ; diagnosis ; genetics ; Neutropenia ; complications ; genetics ; psychology ; Obesity ; diagnosis ; genetics ; Psychomotor Disorders ; diagnosis ; etiology ; genetics ; Retinal Degeneration ; diagnosis ; genetics ; Vesicular Transport Proteins ; genetics