AIMTo study the chemical constituents of Salsola collina Pall..

METHODSCompounds were isolated by silica gel column chromatography. IR, MS, 1HNMR, 13CNMR, HMQC, HMBC, DEPT were used for the structural identification.

RESULTSTwo amide alkaloids were obtained. They were identified as N-transferuloyl-3-methyldopamine (I), (10bS)-1,2,3,5,6, 10b-hexahydropyrrolo [2,1-a]-8,9-dihydroxyisoquinoline-3-one (II).

CONCLUSIONCompound I was isolated from this genus for the first time. Compound II is a new compound named salsoline A.

Molecular Structure ; Plants, Medicinal ; chemistry ; Salsola ; chemistry ; Salsoline Alkaloids ; chemistry ; isolation & purification

Bridged-Ring Compounds ; poisoning ; Humans ; Male ; Middle Aged ; Poisoning ; therapy ; Treatment Outcome

Objective To evaluate changes of regional cerebral metabolism by proton MR spectroscopy (~1H-MRS) in patients with minimal hepatic encephalopathy (MHE) and to correlate these changes with the neuropsychological test. Methods Fifty-four patients with cirrhosis including nine patients with hepatic encephalopathy (HE),23 patients with MHE,22 patients without HE and 13 controls underwent neuropsychological tests and ~1H-MRS scanning. The volumes of interest included occipital gray matter and left parietal white matter regions. Ratio of spectral peak areas of N-acetylaspartate (NAA),choline (Cho),myo-inositol (mI),and glutamine/glutamate (Glx) relative to creatine (Cr) were acquired. Statistical analysis was conducted using independent t test and one-way analysis of variance. The results of different groups were compared by using the nonparametric Mann-Whitney U test with Bonferroni correction. Correlations among the ~1H-MRS ratios, the grade of HE, neuropsychological test and ammonia data were calculated with Spearman correlation test. Results The ratios of NAA/Cr,Cho/Cr,mI/Cr,Glx/Cr of the occipital gray matter and left parietal white matter regions in patients with cirrhosis are 1.55±0.12,0.48±0.10,0.42±0.14,2.52±0.48 and 1.73±0.17,0.75±0.16,0.42±0.16,2.75±0.59respectively,and they are 1.53±0.10,0.48±0.09,0.51±0.11,2.20±0.39 and 1.69±0.15,0.82±0.14,0.53±0.12,2.40±0.40 in patients without HE,1.58±0.13,0.48±0.08,0.38±0.13,2.62±0.39 and 1.78±0.18,0.74±0.14,0.38±0.15,2.84±0.58 in patients with MHE,1.54±0.12,0.50±0.13,0.29±0.07,3.04±0.31 and 1.70±0.19,0.62±0.16,0.29±0.07,3.37±0.38 inpatients with HE.Compared with controls, decreased mI/Cr and Cho/Cr ratios and elevated Glx/Cr ratios were found in patients with cirrhosis (t=3.196,9.394,-6.527,P＜0.01,occipital gray matter. t=5.592,9.717,-6.681,P＜0.01,left parietal white matter＝ and in subgroup of patients without HE, with MHE and HE (F=5.097,25.896,20.204,P＜0.01,occipital gray matter.F=16.435,28.660,21.283,P＜0.01,left parietal white matter).Significant difference in these metabolic alterations was also found among the different groups of cirrhosis especially the ratios of Glx/Cr in occipital gray matter and left parietal white matter (P＜0.0084).The ratios of mI/Cr also significantly altered between patients without HE and with MHE (P＜0.0084).There was a significant negative correlation between the ratios of Cho/Cr,mI/Cr and the grade of HE (P＜0.01＝ and a significant positive correlation between the ratios of Glx/Cr and the grade of HE (r=0.709,P＜0.01,occipital gray matter; r=0.720,P＜0.01,left parietal white matter＝.NCT-A and DST of controls is (49±8) s and 39±6.They are (134±37),(83±26),(64±22) second and 15±2,25±9,35±8 in patients with HE,MHE and without HE respectively.The metabolic alterations of Cho/Cr,mI/Cr,Glx/Cr correlated significantly with neurepsychological tests in all subjects (P＜0.01＝.There was a significant positive and a negative correlation between the ratios of Glx/Cr and the data of NCT-A and DST respectively (r=0.570,-0.642,occipital gray matter; r=0.541,-0.632,left parietal white matter).The metabolic alterations of Glx/Cr had no correlation with ammonia data as well as other metabolic alterations.Conclusions ~1H-MRS study shows cerebral metabolic alterations of gray and white matter in patients with cirrhosis,especially the reduction in mI/Cr ratio and increase in Glx/Cr ratio. These changes correlate well with the neuropsychological tests and may be useful in predicting the presence of MHE.

Objective To explore the behaviors caused by fear of hypoglycemia in type 2 diabetic patients, and deeply analyze the causes of these behaviors, providing help for medical staff to fully understand the inner demands of diabetic patients with hypoglycemia, so as to manage the blood glucose effectively, laying the foundation of Hypoglycemia Fear Survey-behavior scale suitable for domestic type 2 diabetic patients. Methods The interpretative phenomenological analysis method was used guided by the knowledge-attitude-belief-practice and social cognitive theory, 33 patients with hypoglycemia from 5 hospitals with different levels were interviewed by semi-structured interview. Results Four themes were extracted, including excess sensitivity, caution, avoidance and compromise. The theme excess sensitivity contained three kinds of behaviors, that were meal with sensitive alertness, drug sensitivity and excessive response to the hypoglycemia, while the theme caution contained two kinds of behaviors, that were strive to blood sugar stable and must prepare food. Conclusions The results show that the fear of hypoglycemia is serious in type 2 diabetic patients, and they make many behavior change to avoid it, affecting their quality of life and glycemic management. Medical staff should attach importance to the inner feelings and behaviors of diabetic patients with hypoglycemia, and provide guidance and support after comprehensive assessment, working together with the patient to realize the effective management of blood glucose.

Objective To explore the effect of nitric oxide (NO) on ?-aminobutyric acid B receptor (GABA_BR) subunits during recurrent febrile seizures (FS).Methods Twenty-four Sprague-Dawley rats aged 21 days were randomly divided into 4 groups: control group (37.0 ℃ water,n=8), FS group (45.2 ℃ water,n=8), FS + SNP group (45.2 ℃ water,n=8), FS+L-NMMA group (45.2 ℃ water,n=8). FS rats were induced 10 times in a warm-water bath, once every 2 days. The plasma level of NO was detected by the spectrophotometer. The expressions of GABA_BR subunit mRNA and c-fos gene were examined by in situ hybridization. The expressions of GABA_BR subunit and Fos protein were observed by immunohistochemistry. Results The plasma level of NO increased in FS + SNP group while decreased in FS+L-NMMA group compared with that in FS group. The expressions of GABA_BR_2 were down-regulated in FS+SNP group, while GABA_BR_1 hardly changed compared with those in FS group. In FS+L-NMMA group, both the expression of GABA_BR_2 and GABA_BR_1 up regulated compared with those in FS group. The expressions of c-fos gene and Fos protein were significantly enhanced after recurrent FS. SNP elevated the expressions of c-fos gene and Fos protein, while L-NMMA down regulated the expressions of them.Conclusion NO may play a regulatory role through modulating GABA_BR function in the pathogenesis of recurrent FS.

Objective To explore the influence of ?-aminobutyric acid B receptor(GABA_BR)on carbon monoxide (CO)/heme oxygenase(HO-1)system during recurrent febrile seizures (FS).Methods Sprague-Dawley rats aged 21 days were randomly divi- ded into 4 groups:control group and FS group,FS+baclofen group,FS+phaclofen group.FS in rats were induced 10 times in a bath of warm water, once every 2 days.The plasma level of CO was detected by the dual wave lengh spectrophotometer;the expressions of GABA_BR and HO-1 mRNA were examined by insitu hybridization;the expressions of GABA_BR and HO-1 protein were observed by immunohistochemistry.Results The plasma level of CO increased in FS+baclofen group,while decreased in FS+phaclofen group compared with FS group.The expressions of GABA_BR and HO-1 upregulated in FS+baclofen group,while decreased in FS+phaclofen group compared with FS group.There were significant difference (All P

AIMTo study the bioactive constituents from the flower of Castanea mollissima Blume.

METHODSCompounds were isolated and purified by column chromatography on silica gel and polyamide. Structures were determined by various spectroscopic data,including UV, IR, 1H and 13CNMR, EIMS and FABMS, 1H-13C-COSY and HMBC.

RESULTSTwo compounds were isolated from the ethyl acetate fraction of 95% ethanol extract and the structures were elucidated as kaempferol-3-O-[6"-(E)-p-coumaroyl]-alpha-D-mannopyranoside (1) and kaempferol-3-O-[6", 4"-di-(E)-p-coumaroyl]-alpha-D-mannopyranoside (2).

CONCLUSIONCompounds 1 and 2 are new compounds, named castanoside A and B respectirely.

Fagaceae ; chemistry ; Flowers ; chemistry ; Glucosides ; chemistry ; isolation & purification ; Kaempferols ; chemistry ; isolation & purification ; Mannosides ; chemistry ; isolation & purification ; Molecular Conformation ; Molecular Structure ; Plants, Medicinal ; chemistry

OBJECTIVETo explore the feasibility of using an intracavitary convex array probe for detecting the distal extracranial internal carotid artery (ICA) by transoral carotid ultrasonography (TOCU).

METHODSForty patients underwent examinations with bilateral ICA inspected with an intracavitary convex array probe by TOCU to observe the internal diameter, visible length, peak systolic velocity (PSV), end-diastolic velocity (EDV) and resistance index (RI).

RESULTSEight of the 40 patients were excluded from the observation for the presence of carotid plaques. The examination was terminated in two patients due to sensitive throat and severe pharyngeal reflex. The rest of the patients completed the examination of the internal diameter, visible length, PSV, EDV and RI, which showed no statistically significant differences among them (P>0.05).

CONCLUSIONUsing intracavitary convex array probe, the distal extracranial ICA disease can be diagnosed with higher accuracy.

Adult ; Aged ; Carotid Artery, Internal ; diagnostic imaging ; Female ; Humans ; Image Processing, Computer-Assisted ; methods ; Male ; Middle Aged ; Mouth ; diagnostic imaging ; Ultrasonography, Doppler, Duplex ; methods

Objective To understand infection status,clinical and epidemiological features of respiratory tract infection(RTI) with human Bocavirus(HBoV) in children in Wuhan area.Methods A total of 968 hospitalized children with acute RTI between January and December 2016 were recruited in the study.Sputum specimens were collected by sterile negative pressure suction method.HBoV,respiratory syncytial virus,adenovirus,A/B-type influenza virus,and parainfluenza virus Ⅰ/Ⅱ/Ⅲ were detected,the prevalence and clinical features of HBoV infection were analyzed.Results Among 968 cases,75(7.75％) were positive for HBoV.The detection rates of HBoV in boys and girls were 5.68％ and 2.07％ respectively,there was no significant difference in the detection rate of HBoV between different genders(x2 =2.083,P =0.140);53 (70.67 ％) HBoV-positive children were＜ 1 year old,63(84.00％) were＜3 years old,there was significant difference in the detection rate among all age groups(x2 =4.60,P =0.043).The detection rates in spring,summer,autumn,and winter were 9.78％,5.29％,2.86％,and 5.20％ respectively;except September and October,HBoV was found positive in the other months,detection rate was highest in March (33.33％).17 cases were simple HBoV infection and 58 were mixed infection,the main clini cal diagnosis of HBoV was bronchopneumonia(n =26,34.67％).The main clinical features of HBoV cases were fever(81.33 ％),cough(77.33 ％),and wheezing (77.33 ％).Conclusion HBoV is one of the important pathogens causing RTI in hospitalized children in Wuhan area,HBoV infection can occur throughout the year,the peak season are spring and summer,there is no difference between different genders.The most common clinical diagnosis of HBoV in hospitalized children is bronchopneumonia,the main manifestations are fever,coughing,and wheezing.

AIMTo study the bioactive constituents of the flower of Castanea mollissima Blume.

METHODSCompounds were isolated and purified by column chromatography of silica gel and TLC. Structures were determined by various spectroscopic data, including IR, 1HNMR and 13CNMR, EIMS, FABMS and HMBC as well as comparison of the data with those reported in literatures.

RESULTSFive compounds were isolated and elucidated as myricetin (I), quercetin (II), gallic acid (III), 4-quinolinone-2-caboxylic acid (IV), (+) -isolariciresinol-9'-O-alpha-L-rhamnoside (V).

CONCLUSIONThese compounds were separated from the flower for the first time and compound V is a new compounds, named chestnutlignansoide.

Fagaceae ; chemistry ; Flavonoids ; chemistry ; isolation & purification ; Flowers ; chemistry ; Molecular Structure ; Naphthols ; chemistry ; isolation & purification ; Plants, Medicinal ; chemistry ; Quercetin ; chemistry ; isolation & purification ; Rhamnose ; analogs & derivatives ; chemistry ; isolation & purification