Objective To discuss the variation range and the indication of soluble serum Fas (sFas) in aplastic anemia (AA) patients.Methods The level of sFas receptor in 38 AA patients was assayed by ELISA,with 30 cases as controls.Results The level of sFas receptor in AA patients was apparently lower than those of the control group (P

Objective To elucidate the mechanism of angiotensin (Ang) Ⅱ in regulation of renin synthesis and secretion in primary cultured juxtaglomerular granular cells (JGCs). Methods Mice JGCs were isolated and cultured as described before. Real-time PCR was used to demonstrate the expression of angiotensin converting enzyme (CE) and angiotencin receptor (AT1, AT2) in JGCs. Ang Ⅱ was co-cultured with JGCs stimulated by PGE2 and isoproternol or not. Renin activity in supernatant was detected by radioimmunoassay and renin mRNA expression was examined by real-time PCR. Different concentrations of Ang Ⅱ were co-cultured with JGCs with different time (1 h, 4 h and 24 h), cAMP in cell lysate and supernatant was measured by Cayman Cyclic AMP EIA Kit. The cytoplasmic calcium was decreased by BAPTA-AM, and increased by thapsigargin and cyclopiazonic acid, which could be used to observe the cAMP concentration affected by calcium. Adenylyl cyclase type 5, 6 (AC5, AC6) mRNA expression of JGCs co-cultured with Ang Ⅱ was measured by real-time PCR. Results Real-time PCR confirmed the expression of ACE and AT mRNA in JGCs of WT mice. Angiotensin Ⅱ reduced renin secretion in primary cultures of JGCs [(370.6±36.9) vs (299.6±25.7) ng AngI'ml~(-1)·h~(-1), P=0.014]. Angiotensin Ⅱ dose-dependently down-regulated forskolin-stimulated cAMP production in JGCs. Thapsigargin and cyclopiazonic acid decreased cAMP level. BAPTA-AM increased cAMP production obviously [(11.09±0.48) vs (3.55±0.47) nmol/L, P<0.01]. Ang Ⅱ inhibited AC5 mRNA expression by 42.12%, but did not inhibit AC6 mRNA expression. Conclusions Angiotensin Ⅱ can directly inhibit renin synthesis and secrestion maybe through reducing AC-stimulated cAMP levels. Crosstalk between calcium and cAMP system may exist in precise regulation of renin in JGCs.

Currently,three predominant subtypes of influenza virus are prevalent in pig populations worldwide:H1N1,H3N2,and H1N2.European avian-like H1N1 viruses,which were initially detected in European pig populations in 1979,have been circulating in pigs in eastern China since 2007.In this study,six influenza A viruses were isolated from 60 swine lung samples collected from January to April 2011 in eastern China.Based on whole genome sequencing,molecular characteristics of two isolates were determined.Phylogenetic analysis showed the eight genes of the two isolates were closely related to those of the avian-like H1N1 viruses circulating in pig populations,especially similar to those found in China.Four potential glycosylation sites were observed at positions 13,26,198,277 in the HA1 proteins of the two isolates.Due to the presence of a stop codon at codon 12,the isolates contained truncated PB1-F2 proteins.In this study,the isolates contained 591Q,627E and 701N in the polymerase subunit PB2,which had been shown to be determinants of virulence and host adaptation.The isolates also had a D rather than E at position 92 of the NS1,a marker of mammalian adaptation.Both isolates contained the GPKV motif at the PDZ ligand domain of the 3' end of the NS1,a characteristic marker of the European avian-like swine viruses since about 1999,which is distinct from those of avian,human and classical swine viruses.The M2 proteins of the isolates have the mutation (S31N),a characteristic marker of the European avian-like swine viruses since about 1987,which may confer resistance to amantadine and rimantadine antivirals.Our findings further emphasize the importance of surveillance on the genetic diversity of influenza A viruses in pigs,and raise more concerns about the occurrence of cross-species transmission events.

ObjectiveTo investigate the effect and mechanism of prostaglandin E2 (PGE2) in renin regulation at the juxtaglomerular apparatus (JGA). MethodsMacula densa cell line (MMDD1) was cultured on the special filter. In the medium on the apical lateral of the cells, low concentration of sodium chloride, chloride and different doses of angiotensin Ⅱ (Ang Ⅱ) were used to stimulate the PGE2 secretion. The PGE2 concentration was tested by ELISA. In the animal experiment, the response of plasma renin activity (PRA) to acute intraperitoneal administration of captopril (30 mg/kg) was determined, in conscious wild-type (WT) and cyclooxygenase COX-2-/- mice on C57BL/6 genetic backgrounds. PRA was measured in plasma obtained by tail vein puncture. Different concentrations of PGE2 were used to stimulate the renin secretion of primary cultured JGA cells from COX-2-/- mice and wild type mice. In specific Gsα gene delete mice (low renin producing mice), 24 h urine was collected to test the concentration of PGE2. The COX-2 mRNA and protein of the kidney cortex were observed by real-time PCR and immunohistochemicul staining. ResultsLow chloride could stimulate the PGE2 secretion both at the apical and basement of the macula densa cells. In COX-2-/- mice, the base PRA and were obviously lower than wild type mice. Captopril could stimulate the PRA of (COX)-2-/- mice increasing 32.8 times. But Ang Ⅱ had no effect on PGE2 secretion in macula densa cells. In primary cultured JGA cells, the decreasing renin seretion was partly recovered by PGE2 in cells from COX-2-/- mice. In low renin producing mice, the expression of COX-2 mRNA in the kidney cortex increased by (8.07±1.08) times (n=6, P=0.0022). The COX-2 protein of the kidney cortex and the urine PGE2 increased by several times. ConclusionsLow chloride is the primary stimulation messenger of PGE2 secretion in macula densa cells. The PRA in COX-2-/- mice can be stimulated by angiotensin converting enzyme inhibitor, but the Ang Ⅱ has no direct effect on macula densa cells. When renin production is abolished in JGA cells (Gsα delete mice), COX-2 mRNA and protein up-regulation is observed in kidney cortex and macula densa. PGE2 plays an important role in regulation of renin secretion and renin release in JGA by precise feedback mechanism.

Objective: To investigate the influence of low viscosity and high viscosity bone cement in PVP on active function, anatomical index and leakage rate of patients with severe osteoporotic vertebral compression fractures (OVCF). Methods: From October 2015 to June 2017, 136 patients with severe OVCF were chosen in the Central Hospital of Yuncheng and randomly divided into two groups according to the digital table, with 68 patients in each group.The control group was given low viscosity bone cement by PVP scheme, and the observation group was given high viscosity bone cement by PVP.The VAS score, ODI score, SF-36 score and kyphosis Cobb angle before and after operation, the recovery rate of injured vertebrae, bone cement injection volume and postoperative cement leakage rate of the two groups were compared. Results: There were no statistically significant differences in the VAS score, ODI score and SF-36 score before operation between the two groups(all P>0.05). The VAS score, ODI score and SF-36 score after operation of the control group were (1.90±0.32)points, (30.38±3.52)points, (76.07±9.38)points, respectively, which of the observation group were (1.94±0.34)points, (29.72±3.34)points, (77.10±9.60)points, respectively, which were significantly better than those before operation(control group: t=4.27, 5.01, 4.02; observation group: t=4.21, 4.89, 3.87, all P<0.05). There were no statistically significant differences in the VAS score, ODI score and SF-36 score after operation between the two groups(all P>0.05). The kyphosis Cobb angle after operation of the observation group was (14.02±2.59)°, which was significantly lower than (16.83±3.31)° of the control group and (27.78±4.09)° before operation (t=4.99, 2.64, all P<0.05). The recovery rate of injured vertebrae of the observation group was (28.34±5.70)%, which was statistically significantly higher than (22.72±4.16)% of the control group (t=3.42, P<0.05). There was no statistically significant difference in the bone cement injection volume between the two groups(P>0.05). The incidence rate of bone cement leakage in the observation group was 10.29%(7/68), which was significantly lower than that in the control group [30.88%(21/68)](χ²=12.15, P<0.05). Conclusion Low viscosity and high viscosity bone cement in PVP in the treatment of patients with severe OVCF possess the same clinical effects on relieve pain and improve activity and quality of life; but high viscosity bone cement application can efficiently improve the anatomical index of injured vertebrae and avoid postoperative cement leakage.

OBJECTIVETo observe the influence of borneol, a traditional Chinese medicine, on the concentration of ceftriaxone in the rat brain striatum and evaluate the relativity.

METHODThe sample of cerebrospinal fluid in the rat brain striatum was collected via brain microdialysis technology, and then the contents of ceftriaxone in standard preparation and sample were detected by high efficiency liquid chromatography combined with diode array detector respectively and analyzed statistically. The concentration of ceftriaxone in rat brain striatum in the ceftriaxone + Borneol group was compared with that in the ceftriaxone-only group.

RESULTThe concentration of ceftriaxone in the rat brain in the ceftriaxone + Borneol group (13.01-4.43 mg x L(-1)) is significantly higher than that in the ceftriaxone-only group (2.41-0.94 mg x L(-1)).

CONCLUSIONBorneol can promote ceftriaxone through blood-brain barrier, and increase the concentration thereof in striatum.

2-Pyridinylmethylsulfinylbenzimidazoles ; pharmacokinetics ; Animals ; Blood-Brain Barrier ; Bornanes ; pharmacology ; Ceftriaxone ; pharmacology ; Chromatography, High Pressure Liquid ; Corpus Striatum ; drug effects ; metabolism ; Drug Combinations ; Male ; Medicine, Chinese Traditional ; Microdialysis ; Neostriatum ; drug effects ; metabolism ; Rats ; Rats, Wistar

With the development of patient-centered medical model,patient values and preferences have become a hot research topic.This paper starts from the concept of patients'values and preferences,analyzes the important importance of patients'values and preferences;Based on the published literature,the importance of patients'values and preferences in the development of acupuncture clinical guidelines,the positive role in doctor-patient co-decision,the value of patients'cognition and value promotion in acupuncture"Deqi"were sorted out,and the influencing factors of patients'values and preferences and acupuncture compliance were summarized.According to the influencing factors,the corresponding solutions were proposed to help patients establish correct values,and thus improve patients'acupuncture compliance.

In this paper, cobalt chloride was used to stimulate human umbilical vein endothelial cells (HUVEC) to establish a model of abnormal hypoxic injury, to investigate the effect of heparin-derived oligosaccharides (HDO) on glycolysis in HUVEC cells and its molecular mechanism.The experiment was divided into the control group (FBS-free DMEM medium), the model group (FBS-free DMEM medium +50 μmol/L CoCl2), and the HDO group (modeling+0.01, 0.1, 1 μmol/L HDO).Firstly, a biochemical kit was used to detect the effects of HDO on glucose uptake and lactic acid accumulation in HUVEC cells, then Western blot and qPCR were used to detect the effects of HIF-1α, GLUT-1 and LDHA gene transcription and protein expression, and finally, PI3K/Akt signaling pathway was detected.The results showed that HDO inhibited glucose uptake and lactate production, down-regulated the expression of HIF-1α, GLUT-1, and LDHA, and affected the activation of the PI3K/Akt signaling pathway.HDO could regulate the glycolysis level of HUVEC cells by inhibiting the activation of the PI3K/Akt/HIF-1α signaling axis.

In China,the coexistence and collaboration of Chinese and western medicine has long been a fundamental reality,reflected in both practice and policy.Currently,the Communist Party of China(CPC)and the Chinese government are actively promoting traditional Chinese medicine(TCM).Then,it is particularly important to explore what kind of combination of Chinese and western medicine is needed in China.In this paper,the author,as a clinician,based on his practical experience and theoretical reflection,proposes that the combination of Chinese and western medicine in China should be guided by the core concepts of Chinese medicine,under which the modernization of Chinese medicine should be carried out to keep pace with the times,and ultimately presented as a kind of medicine that abandons the old and seeks the new.Chinese and western medical practitioners have their logic of practice and technical characteristics and should understand their strengths and weaknesses and strive to complement each other's strengths.Chinese medicine should have firm cultural confidence,but at the same time,it must be modernized and keep up with the times.Realizing the integration of Chinese and western medicine is a long-term process with stages and levels,and requires national support and institutional guarantee.Individual clinicians can begin to recognize and practice the integration of Chinese and western medicine on their own.In terms of the overall development of medicine,it is recommended to realize the so-called"modernization of Chinese medicine"through the integration of Chinese and western medicine,which includes the use of the core concepts of Chinese medicine to guide the application of various modern medical tools in the ways of fulfilling medical social responsibilities(e.g.,the system of medical practice,the way of passing on knowledge,the way of communication,the way of evaluating the efficacy of treatments,the way of scientific research and public health,etc.),as well as the borrowing and integrating of the development model of the medical industry.The real integration of TCM and western medicine in the future will inevitably be a rebirth of traditional TCM and western medicine,and even science.

Volume dynamics is a two-compartment dynamical model using hemoglobin (Hb) derived plasma diluted level as input data and urine output as input variable through consecutive repeated measurements of Hb concentration in the blood during infusion. It could be applied to evaluate and guide crystalloid fluid rehydration for patients with dehydration or hypovolemia and during anesthesia or surgery. Volume dynamics could be also used to quantificate of strains, hypovolume, and the change of fluid distribution and elimination caused by anesthesia or surgery. The factors which influence the volume resuscitation are complex, including gender, age, hemodynamic state [mean arterial pressure (MAP)], health and stress state, renal function, consciousness, surgical or anesthesia state and so on, which may affect the half-life, distribution, and volume of the fluid. This article summarizes and analyzes the pathophysiological changes of crystalloids fluid in vivo, in order to provide reference for volume management in critically ill patients.