To investigate the genetic diversity among wild Dipsacus asperoides in China, 66 germplasmic resources of D. asperoides were analyzed by Start Codon Targeted Polymorphism (SCoT) molecular markers. Genetic distance was calculated by TREECONW software and the systematic diagram of genetic relationship was clustered by UPGMA method. The results showed that the totals of 181 bands were detected using 20 primers , among which 109 were polymorphic bands. The average percentage of polymorphic bands was 60.13%. Genetic distance changed from 0.030 6 to 0.181 4. The clustering results showed that there was no significant correlation between the classification of the wild D. asperoides and their geographical origin. The relatively high genetic diversity of D. asperoides provides the basis for breeding new varieties.
China ; DNA Primers ; genetics ; DNA, Plant ; genetics ; Dipsacaceae ; chemistry ; classification ; genetics ; Genetic Variation ; Phylogeny ; Polymorphism, Genetic

Objective To study the correlation between cognitive dysfunction and cholinergic neuron changes in basal forebrain(BFB)and brainstem reticular formation(BSRF)areas after brain con- cussion(BC)in rats.Methods Eighty-four Spragne-Dawley rats weighing 250-310g were used.The BC rat models were reproduced by a self-made simple pendulum impact device,then the rats were ran- domized into one control group and six experimental groups(1 day,2 day,4 day,8 day,16 day,and 24 day groups;n=12 in each group).A Morris Water Maze(MWM)test was used to assess learning and memory function of the rats.Cholinergic neurons in the BFB and BSRF were identified with choline acetyltransferase(CHAT)antibody and quantitated.Results Compared with the control group,the la- tency to find the platform in MWM was much longer on days 1-3 after BC,but there was no statistical difference on days 4-21 after BC.The cell number and the ChAT expression activity of cholinergic neu- rons in the BFB were obviously decreased after BC,and reached the lowest level at 8 days after BC,then increased gradually and nearly reached the normal level at 24 days.The ChAT expression activity in BSRF declined on the first 2 days after BC,then went up gradually,and reached the peak at the 24th day.Conclusion The spatial cognition deficit of BC rats can be detected by MWM in the early period (1-3 days after BC).There are significant changes in the number and ChAT expression activity in BFB and BSRF after BC.The change of cholinergic neurons may be correlated with cognitive deficits in BC rats.

Acquired Immunodeficiency Syndrome ; drug therapy ; genetics ; surgery ; Adult ; Burkitt Lymphoma ; drug therapy ; genetics ; surgery ; virology ; Diagnosis, Differential ; Female ; Genes, myc ; HIV ; isolation & purification ; HIV Infections ; Herpesvirus 4, Human ; genetics ; Humans ; Immunohistochemistry ; Lymphoma, AIDS-Related ; drug therapy ; genetics ; surgery ; virology ; Lymphoma, B-Cell ; pathology ; Lymphoma, Mantle-Cell ; pathology ; Male ; Middle Aged ; RNA, Viral ; analysis ; Sarcoma, Myeloid ; pathology ; Translocation, Genetic

OBJECTIVE: To set up a classification standard of mild and moderate traumatic brain injury, for the purpose of reliable data comparison derived from different laboratories. METHODS: Traumatic brain injury (TBI) in rats was prepared by using a metallic pendulum-striker device. After injury, five variable parameters including the time of apnea and the areflexia, time of corneal reflex, external auditory canal stung reaction, body-righting reflex and needling reaction were determined and scored by using rat coma criterion. These data were judged and classified into mild and moderate head injury by brain patho-anatomy changes. Then the data were used to set up a multivariate discriminate equation. RESULTS: The distinguished probability of mild and moderate TBI according to actual direct measured value and the criterion were 88.9% and 91.9%, respectively. CONCLUSION This method is able to classify mild and moderate TBI in rats.
Animals ; Brain Injuries/pathology* ; Coma/etiology* ; Forensic Medicine ; Male ; Rats ; Rats, Sprague-Dawley

OBJECTIVETo investigate the clinical manifestations, imaging characteristics as well as prognosis of neonatal polycythemia complicated with brain damage.

METHODSOne hundred and sixteen in-patients with neonatal polycythemia admitted to our hospital during January 2003 to October 2005 were analyzed. Their clinical manifestations were observed. Craniocerebral ultrasonic examination (2D, 3D), CT and MRI were employed to dynamically observe the craniocerebral imaging variances as well as the cerebral hemodynamic variations and near infrared spectroscopy (NIR) was adopted to test the cerebral oxygenation. Twenty-two cases with moderate or severe disease were followed up for 3 to 12 months.

RESULTSOut of the 116 polycythemic neonates, 53 cases had brain damages, of whom 31 had mild, 14 had moderate, and 8 had severe damages. Cranial imaging alterations were mostly ischemic injuries of various areas of different severity. The severity of brain damage was closely related to the duration of polycythemia, oxygen saturation of cerebral tissues as well as cerebral hemodynamic abnormalities. Brain injury was likely to occur in those whose polycythemia persisted for more than three days. The regional saturation of oxygen (rSO(2)) in mild brain injury cases was found to be 52.1%, while it was 47.1% in moderate and severe brain injury cases. Compared to the 58% as found in non-brain injury cases, the variance was found to be statistically significant (F = 104.466, P < 0.01). Among the cases with brain injury, cerebral hemodynamics displayed a slowdown in the blood flow velocity in the cerebral anterior artery and medium artery during the systolic phase and/or the diastolic phase. The abnormality ratio was closely related to the severity of brain injury. Through the chi(2) test the variance was proved to be statistically highly significant (chi(2) = 18.889, P < 0.01), however it was not correlated with the increase of the initial levels of hemoglobin (Hb) and hematocrit (HCT) (P > 0.05). During the follow up, neurological developmental abnormalities of various severity were found to exist in the cases with moderate (5/12) and severe disease (7/8), while cerebral palsy or epilepsy was not yet found.

CONCLUSIONNeonatal polycythemia might tend to bring about a reduction in the perfusion of cerebral blood flow and damaged cerebral oxygenation metabolism which in turn might lead to cerebral ischemic injury, which in some of the moderate and severe cases might lead to long-term neurological complications. Imaging investigations especially craniocerebral ultrasonic examination could be the practical means for the early diagnosis and evaluation of prognosis.

Brain ; pathology ; Brain Damage, Chronic ; complications ; Cerebrovascular Circulation ; Female ; Humans ; Infant, Newborn ; Infant, Newborn, Diseases ; Magnetic Resonance Imaging ; Male ; Polycythemia ; complications ; Skull ; diagnostic imaging ; Tomography Scanners, X-Ray Computed ; Ultrasonography

OBJECTIVETo investigate the factors related to the outcome of patients with chronic severe hepatitis B and effectiveness of antivirus therapy.

METHODSThe effects of the factors including age, prothrombin activity (PTA), serum HBeAg, Anti-HBe, HBV-DNA load, with or without complication, antivirus therapy and so on, on outcome of 330 patients with chronic severe hepatitis B were analyzed in this retrospective study.

RESULTSThe mortality of patients with chronic severe hepatitis B was significantly higher among patients at higher age, with lower PTA, and with more complications. The mortality of patients with HBV-DNA more than 1x10(5) copies/ml (52.3 percent) was higher than that of patients whose HBV-DNA was less than 1x10(5) copies/ml (32.9 percent). There was no correlation between serum HBeAg or anti-HBe and the mortality. The mortality of patients with HBV-DNA higher than 1x10(5) copies/ml (30.38 percent) who were treated with lamivudine in 2005 was lower than that of patients whose HBV-DNA was less than 1x10(5) copies/ml (54.64 percent) who were not treated with any antiviral therapy in 2001.

CONCLUSIONThe higher serum virus load is the key factors of the mortality in addition to the other factors such as older age, lower PTA, more complication in the patients with chronic severe hepatitis B. The usage of antivirus therapy may be associated with lower mortality.

Adult ; Age Factors ; Aged ; Antiviral Agents ; therapeutic use ; Female ; Hepatitis B e Antigens ; blood ; Hepatitis B virus ; drug effects ; genetics ; Hepatitis B, Chronic ; drug therapy ; metabolism ; mortality ; Humans ; Lamivudine ; therapeutic use ; Male ; Middle Aged ; Prothrombin ; metabolism ; Treatment Outcome ; Viral Load

Objective To explore the relationship between the incidence of hypoglycemia in infants of diabetic mothers and brain injury.Methods The incidence of 86 infants of diabetic mothers combined with hypoglycemia as well as the relationship time of persistent hypoglycemia of infants were studied.And the association of the incidence and degree of brain injury with the time of persistent hypoglycemia,complication of other diseases and symptomatic hypoglycemia was also investigated.Results Seventy-five cases of temporary hypoglycemia(87.2%),and 11 cases of frequent hypolycemia(12.8%)were observed in the study.In the group of unsatisfactory maternal blood glucose control cases,the incidence of frequent hypoglycemia was 19.4%;in the group of satisfactory maternal blood glucose control cases,the incidence of frequent hypoglycemia was 8%.The overall incidence of the brain injury and the incidence of severe brain injury in the group of frequent hypoglycemic cases were higher than those in the group of temporary hypoglycemic cases.The incidence of brain injury in cases complicated with other diseases(77.4%) and in those with clinical symptoms(81.2%) were significantly higher than those in without other diseases(48.5%) and clinical symptoms(57.4%)(Pa

Objective To evaluate the pharmacodynamics of human interferon(IFN)α1b against severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)Omicron strain in vitro.Methods Total four drugs human IFNα1b bulk,human IFNα1b eye drops,human IFNα1b spray and Remdesivir were detected for cytotoxicity by CCK-8 assay.The inhibitory effect of human IFNα1b on SARS-CoV-2 Omicron strains(BA.5/BA.2/BA.1)was determined by qPCR.Results Human IFNα1b bulk of the maximum concentration(1 × 107IU/mL)and Remdesivir of the maximum concentration(150 μmol/L)did not achieve half cytotoxicity to Vero cells;The median cytotoxicity concentrations(CC_(50))of human IFNα1b eye drops and human IFNα1b sprays were 29 958 and 37 550 IU/mL,respectively,showing toxicity to Vero cells.The median effective concentrations(EC_(50))of human IFNα1b against virus strains BA.1,BA.2 and BA.5 after incubation for 2 h in advance were 9.30,13.38 and 12.33 IU/mL and those of Remdesivir were 0.314 7,0.291 0 and0.300 3 μmol/L.When incubation with virus simultaneously,the EC_(50)of human IFNα1b to BA.1,BA.2 and BA.5 were19.68,10.91 and 18.84 IU/mL and those of the control drug Remdesivir were 0.320 5,0.274 4 and 0.304 1 μmol/L,respectively.Conclusion At the cell level in vitro,human IFNα1b of very low activity showed a good inhibitory effect on SARS-CoV-2 Omicron strain,which was expected to be a clinical specific drug for the treatment of SARS-CoV-2 Omicron strain infection.

The purpose of this study was to investigate the vasorelaxing effect and mechanism of idoxifene (a new estrogen receptor modulator) on human internal mammary artery (HIMA). HIMA segments were harvested from men during coronary artery bypass grafting surgery. Patients with diabetes mellitus, hypercholesterolemia, hypertension, or smoking habit were excluded. The vasorelaxing effect of idoxifene on artery rings from HIMA with and without endothelium was measured by means of perfusion in vitro. Cumulative dose-response to idoxifene in the range of 0.01-10 micromol/L was observed in the presence and absence of NO synthase inhibitor L-NAME. It was also studied whether the vasodilation effect of idoxifene on HIMA was blocked by methylene blue (MB), an inhibitor of guanylate cyclase (GC). The results obtained from idoxifene were compared with those from 17beta-estradiol (E(2)). It was found that idoxifene caused a concentration-dependent relaxation on HIMA. The dose range was from 0.03 micromol/L (minimal vasodilatory concentration) to 3 mmol/L (maximal vasodilatory concentration). It was also found that the vasorelaxation effect of idoxifene on HIMA was dependent on endothelium. E(2) (0.1-100 micromol/L) also resulted in an endothelium-dependent vasorelaxation, but the vessels were 15-fold less sensitive to E(2) than to idoxifene in their vasorelaxation responses. The EC(50) for E(2) was 4.65+/-0.34 micromol/L, compared with 0.32+/-0.02 micromol/L for idoxifene. The mean maximal vasodilatory value of E(2) was 88.3+/-5.7%, compared with 88.6+/-7.2% for idoxifene. Pretreatment with L-NAME (100micromol/L) abolished idoxifene-induced vasodilation virtually by blocking nitric oxide production. The vasorelaxing effect of idoxifene disappeared in the presence of MB (10 micromol/L). These findings demonstrate that idoxifene results in an endothelium-dependent vasorelaxation of HIMA, like estrogen. The effect of idoxifene is more potent than that of traditional estrogen, and is possibly mediated by NO-GC-cGMP pathway.
Estrogen Antagonists ; pharmacology ; Humans ; Mammary Arteries ; drug effects ; physiology ; Tamoxifen ; analogs & derivatives ; pharmacology ; Vasodilation ; drug effects

Objective To evaluate the feasibility,reliability,validity and responsiveness of a Chinese Menopause Rating Scale (CMRS).Methods Cross-sectional survey and convenience sampling were adopted. Participants:women with menopause syndrome and those in menopause but without menopause syndrome were recruited.All participants were asked to complete the CMRS,Kupperman Index,WHOQOL-BREF and MENQOL.The Self-control observation design was adopted when the responsiveness was evaluated.Patients were treated with TCM for weeks.MRSTCM was evaluated before and after the treatment.Results (1) Feasibility:3343 participants including 2320 patients and 1023 menopause women,were surveyed in 8 different settings.The recovery rate of CMRS was 100%,with a response rate as 99.7%.The completion of the CMRS took 10.30 minutes on average.(2)Reliability:Cronbach's alpha of CMRS,soma dimension,psychology dimension and community dimension of CMRS were 0.93,0.87,0.89 and 0.73 respectively,with the correlation coefficient of split half of the CMRS.Soma dimension,psychology dimension and community dimension were 0.92,0.89,0.86 and 0.73 respectively and the test-retest correlation coefficient of MRSTCM,the soma dimension,psychology dimension and community dimension were as 0.88,0.91,0.85 and 0.77 respectively.(3) Validity:CMRS was established on the basis of connotation of menopause syndrome,and a series of steps were adopted to modify the scale.CMRS was applicable for patients with menopause syndrome.CMRS seemed to have had good content-related validity.The result of exploratory factor analysis was accorded with the theory frame of CMRS by and large.The correlations between CMRS and KI,CMRS and WHOQOLBREF,CMRS and MENQOL seemed good.The CMRS was able to discriminate between groups of people with or without menopausal syndrome and bad good discriminative validity.(4) Responsibility:The CMRS was measured based on 174 patients with menopausal syndrome before and after the TCM therapy.Our result showed that the CMRS having the ability to measure the clinically important differences.Conclusion CMRS was suitable for outcome assessment of menopausal syndrome.This primary research proved that the CMRS had good feasibility,reliability,validity as well as responsiveness.