However, with increasing cobalt concentration Selleckchem 4-Hydroxytamoxifen a decrease in the optical band gap, from 2.39 to 2.26 eV, is observed. This reduction is addressed on the

basis of band tailing due to the creation of localized energy states in association with Urbach energy calculations. In addition, implantation gives rise to grain growth and increase in the surface roughness. Size and shape fluctuations of individual CdS grains, at higher fluences, give rise to inhomogeneity in strain. The results are discussed in the light of ion-matter interaction in the keV regime. (C) 2009 American Institute of Physics. [doi: 10.1063/1.3224867]“
“Thermoplastic-toughened epoxy resins are widely used as matrices in modern composite prepreg systems. Rapid curing of thermoplastic-toughened epoxy matrix composites results in different mechanical properties. To investigate CX-4945 the structure-property relationship, we investigated a poly(ether sulfone)-modified triglycidylaminophenol/4,4′-diamino diphenyl sulfone system that was cured at different heating rates. An intermediate dwell was also applied during the rapid heating of the thermoplastic-modified epoxy system. We found that a higher heating rate led to a larger domain size of the phase-seperated macrostructure and also facilitated

more complete phase seperation. The intermediate dwell helped phase seperation to proceed even further, leading to an even larger domain size of the macrostructure. A carbon-fiber-reinforced polymer matrix composite prepreg JNK inhibitor research buy based on the poly(ether sulfone)-modified multifunctional epoxy system was cured with the same schedule. The rapidly heated composite laminates exhibited higher mode I delamination. (C) 2009 Wiley Periodicals, Inc. J Appl Polym Sci 113: 485-491, 2009″
“Polymorphisms of PRNP gene have been strongly correlated to the susceptibility/resistance to scrapie in sheep. Variants at the coding

positions 136, 154 and 171 have been the most frequently associated to susceptibility to classical scrapie. The aim of this study was to estimate PRNP haplotype and genotype frequencies in a sample of 1400 sheep from 13 different breeds that are representative of the main production regions in Brazil. A total of four different alleles (ARR, ARQ AHQ and VRQ) and nine genotypes were observed at different frequencies among the investigated breeds. There were distinct patterns of allelic distribution between naturalized and commercial/specialized breeds and different geographic regions. These results will influence the development and management of breeding and conservation programs and will help to develop Brazilian efforts to avoid scrapie epidemics. (C) 2011 Elsevier Ltd. All rights reserved.

“
“Objective: To estimate jitter parameters in myasthenia gravis in stimulated frontalis and extensor digitorum muscles using the concentric needle electrode. Methods: Forty-two confirmed myasthenia gravis patients, being 22 males (aged 45.6 +/- 17.2 years-old) were studied. Jitter was expressed as the mean consecutive difference (MCD). Results: MCD in extensor digitorum was 61.6 mu s (abnormal in 85.7%) and in frontalis

57.3 mu s (abnormal Milciclib cell line in 88.1%). Outliers represented 90.5% for extensor digitorum and 88.1% for frontalis. At least one jitter parameter was abnormal in 90.5% of the combined studies. Acetylcholine receptor antibody was abnormal in 85.7% of the cases. Conclusions: Stimulated jitter recordings measured from muscles using concentric needle electrode can be used for myasthenia gravis diagnosis with high sensitivity. Extensive normative studies are still lacking and, therefore, borderline findings should Selleckchem C59 be judged with great caution.”
“Purpose: The purpose of the present study was to evaluate the acute and subacute toxicity of the aqueous leaf extract of Combretum molle.

Methods: The acute toxicity of the extract was evaluated in rats. The animals were orally administered with doses ranging from 2000 to 8000 mg/kg and observed continuously for the first 4 h, then hourly for

the next 24 h, and finally, 6-hourly for 72 h. Control animals received orally normal saline. The rats were observed carefully for mortality, pain as well as respiratory movements.

For subacute toxicity, 6 groups of 6 rats (3 male and 3 female) each received intraperitoneally, normal saline (control), 400, 600, 800, 1000 and 1200 mg/kg of the extract, respectively, thrice daily for 15 days. At the end of the treatment period, the animals were sacrificed and their organs (liver, heart and kidney) removed for macroscopic examination.

Results: For the acute toxicit test, no death and signs of poisoning were observed in the treated groups. In the subacute tstudy, PU-H71 LD50 in the rats after intraperitoneal administration was 700 mg/kg (456 – 896, 95% confidence interval). The clinical signs of poisoning (motor difficulties, decreased respiratory rate, and tremor preceding death) were observed, suggesting overt toxicity throughout the neuromuscular system. However, histological examination of vital organs showed normal architecture suggesting no morphological abnormalities in the heart, kidney and liver.

Conclusion: The results show that the aqueous leaf extract of C. molle is moderately toxic when given intraperitoneally.”
“Background and objective: A hallmark of asthma is airway remodelling, which includes increased deposition of extracellular matrix (ECM) protein. Viral infections may promote the development of asthma and are the most common causes of asthma exacerbations. We evaluated whether rhinovirus (RV) infection induces airway remodelling, as assessed by ECM deposition.

“
“A 6-year-old

male castrated LY2606368 nmr Norfolk Terrier dog was examined following a 21-day history of an increasingly painful eye. Examination revealed marked blepharospasm and purulent ocular discharge associated with an ulcerative keratitis. There was panstromal corneal opacity with raised gray to white lesions. Corneal cytology demonstrated branching septate fungal hyphae identified by polymerase chain reaction as Scedosporium apiospermum. Treatment with topical 1% voriconazole solution was successful in resolving the keratomycosis.”
“Acute myocardial infarction (AMI) during pregnancy or in the early postpartum period is a rare event but may cause perinatal morbidity and mortality. Early diagnosis of AMI is critical for appropriate

treatment. We report a case of postpartum AMI in a 40-year-old multiparous woman with varicose veins. On postpartum day 3, the patient suffered severe chest pain. She had been administered oral methylergometrine. In addition to ST-segment elevation DNA-PK inhibitor in her electrocardiogram, the patient presented with a positive result on whole blood rapid panel tests for troponin T and heart-type fatty acid-binding protein (H-FABP). These findings indicated AMI in the anterolateral wall. The chest pain disappeared with the prompt administration of intravenous pentazocine hydrochloride and sublingual nitroglycerin spray. Angiography did not reveal any signs of coronary stenosis. To our knowledge, this is the first report of postpartum AMI diagnosed rapidly with combined use of troponin T and H-FABP qualitative panel tests.”
“Although the human clinical strain of Campylobacter lari (RM2100) has been shown not to carry any type III restriction-modification (R-M) systems, an R-M genes cluster was identified downstream of the full-length cytolethal distending toxin gene operon in the urease-positive thermophilic Campylobacter (UPTC) CF89-12

strain. Two possible open reading frames (ORFs) for restriction endonuclease and methyltransferase were predicted to encode peptides of 947 and 613 amino acid residues with calculated molecular weights of 111 and 70.8 kDa, respectively. Two putative promoters consisting of the consensus sequences and two probable ribosome binding sites for the two IWR-1-endo datasheet ORFs were also identified. Reverse transcription PCR identified co-transcription of the R-M genes in the cells. The existence of an S-adenosyl methionine-binding motif in the N-terminal conserved region of the possible ORF for the M gene, and seven conserved helicase motifs in the R gene were also identified. PCR and Southern blot hybridization analyses for type III R-M enzyme genes with some of the C. lari isolates including UPTC gave positive signals. UPTC isolates were shown to carry type III R-M enzyme genes, with a relatively high frequency.

The Hamiltonian PD-1/PD-L1 Inhibitor 3 concentration includes the electron-phonon interaction between the electronic states of the Yb3+ (4f(13)) ions and the lattice (Debye) phonon spectrum of the host crystal in a second quantization formulation. The temperature dependences of the linewidths, DWFs, and the

intensities of the transitions are reported in terms of the ratio of temperature to Debye temperature (T/T-D). Of particular interest is the temperature dependence of the most intense transitions at emission wavelengths of 996.6 and 1010.2 nm. These transitions are the best candidates for low-threshold stimulated emission based on measured emission cross sections and lifetimes. We find that with a decrease in temperature, an abrupt increase in radiation intensity occurs for the 1010.2 nm emission transition, suggesting that an optimum temperature value for a maximum stimulated emission may be obtained for Yb3+ in this disordered

structure.”
“The purpose of this work is to study the thermal stability of benzophenone-3 and avobenzone in the presence and in the absence of TiO2, in O/W emulsions for sunscreens products. The emulsions were stored in glass containers at 40 degrees C and 75 % RH and at room temperature. Concomitantly the Sun Protector Factor (SPF) value was evaluated in vitro. These formulations seem to be more stable in the presence of diethylhexyl syringylidene malonate and titanium dioxide and silica. Avobenzone and benzophenone-3 seem to be less stable in the presence of caprylic capric triglyceride see more though this excipient increases PCI-34051 clinical trial the SPF in vitro value. Thus, the aim of this study was to evaluate the thermal stability by HPLC and the efficacy of formulations containing chemical filters, a physical filter and an antioxidant measuring the SPF in vitro value.”
“Cuttlefish (Todarodes pacificus) viscera were tried to extract bioactive oil containing high amount of omega-3 fatty acids. Cuttlefish oil (CFO) was extracted from the viscera, refined,

and evaluated. The tried effective extracting condition was 9 h hot steam extraction. Raw CFO contained high omega-3 fatty acids (FA); 21.4% docosahexaenoic acid (DHA), 11.3% eicosapentaenoic acid (EPA). The raw CFO was refined by acetone fractionation at the optimum conditions (-30A degrees C, 8 h). One advantage of the fractionated CFO was high amounts of DHA (28.6%) and EPA (14.7%). Also, another advantage of the refined CFO was its stability during 92-day storage period at 50A degrees C. This was seen by measuring the acid values (AV < 1.0) and peroxide values (POV < 2.1) throughout the storage period. In conclusion, the refined CFO containing omega-3 FA (> 43%) has potential as a good functional ingredient.

We screened genetic stocks of velvet bean for the trichome-less trait, along with high seed yield and L-DoPA content. The highest yielding trichome-less elite strain was selected and indentified on the basis of a PCR-based DNA fingerprinting

method (RAPD), using deca-nucleotide primers. A genetic similarity index matrix was obtained through multivariant analysis using Nei and Li’s coefficient. The similarity coefficients were used to generate a tree for cluster analysis using the UPGMA method. Analysis of amplification spectra of 408 bands obtained with 56 primers allowed us to distinguish a trichome-less elite strain of M. pruriens.”
“Background Retroperitoneal liposarcomas occur more frequently between the fifth and seventh decades. Fortunately, these tumors DNA Damage inhibitor are exceedingly rare in pregnancy, but when they occur, their management becomes even more challenging.

Case A pregnant patient with a retroperitoneal liposarcoma was treated by complete surgical resection at 13 weeks of gestation. Ulixertinib in vitro The patient gave birth at 37

weeks of gestation to a normal newborn and remains free of disease after a year.

Conclusions Individualized approach should be taken according to gestational phase, tumor kinetics and overall patient’s condition. Any disturbance to materno-fetal equilibrium, should be an indication for urgent therapeutic approach.”
“In this study, anisotropic near band edge transitions of Cu2ZnSiS4 single crystals grown by chemical vapor transport were characterized by using polarization-dependent absorption, piezoreflectance (PzR) and surface photovoltage (SPV) spectroscopy techniques at room temperature. The measurements were carried out on the as grown basal plane with the normal along [2 1 0] and the axis c parallel to the long edge of the crystal platelet. Analysis of absorption and SPV spectra reveal indirect allowed transitions for the absorption edge of Cu2ZnSiS4. The estimated values of indirect band gap are 2.97 eV and 3.07 eV, Kinase Inhibitor Library respectively, for E perpendicular to c and E parallel to c polarization configurations. The polarization-dependent PzR and SPV spectra in the vicinity of the direct band gap of Cu2ZnSiS4 reveal features

E-perpendicular to(ex) and E-parallel to(ex) at around 3.32 eV and 3.41 eV for E perpendicular to c and E parallel to c polarizations, respectively. Both features E-perpendicular to(ex) and E-parallel to(ex) are associated with the interband excitonic transitions at point Gamma and can be explained by crystal-field splitting of valence band. Based on the experimental observations, a plausible band structure near band edge of Cu2ZnSiS4 is proposed. (C) 2010 American Institute of Physics. [doi:10.1063/1.3490219]“
“We analyzed single nucleotide polymorphisms in calpain, leptin, leptin receptor, and growth hormone receptor genes and their association with color, drip and cooking losses of longissimus muscle at 7, 14 and 21 days postmortem in 638 purebred Nellore bulls slaughtered between 22 and 26 months of age.

Activation of the innate immune system can lead to exocrine dysfunction before or without significant inflammation, whereas in other models, LOXO-101 cell line salivary gland function is preserved despite intense inflammatory infiltrates. Primary or inflammation-related abnormalities in water channels contribute to the exocrinopathy. Activation

of the innate immunity in patients is demonstrated by the upregulation of type-1 interferon-regulated genes (interferon signature) in peripheral blood and salivary glands and abnormal expression of B cell-activating factor and its receptors. Nonimmune mechanisms that may contribute to exocrine dysfunction include local and systemic androgen deficiency and autonomic nervous system dysfunction. Autoantibodies against the muscarinic acetylcholine receptors would provide a link between autoimmunity and exocrine dysfunction, but the data on the presence, FG-4592 cell line frequency and physiologic affect of these antibodies remain controversial.

Summary

Recent discoveries from studies in patients with Sjogren’s syndrome and animal models suggest a complex interplay between genetic

factors, environmental and stochastic events that involve innate and adaptive immunity, hormonal mechanisms and the autonomic nervous system. Some of these findings suggest that exocrine gland dysfunction may precede Selleck Nec-1s autoimmunity or represent a process independent from inflammation in the pathogenesis of Sjogren’s syndrome.”
“Congenital chloride diarrhea (CCD) is a rare disease characterized by profound, watery diarrhea. It is inherited as an autosomal recessive trait and is caused by a dysfunction of electrolyte transport in the brush border of the ileum. CCD is a medically treatable condition but is frequently misdiagnosed as a surgically treatable condition,

such as bowel obstruction, because of similar antenatal ultrasonographic findings. Therefore, a correct diagnosis is of upmost importance before treatment initiation. Although some methods for antenatal differential diagnosis were reported, antenatal diagnosis of CCD remains difficult. Here, we report the case of a patient with CCD, which was presumed antenatally and confirmed postnatally. We also discuss the results of antenatal ultrasonography and amniocentesis and provide some tips regarding ultrasonographic findings for the antenatal differential diagnosis of CCD. Further, we present a brief literature review.”
“Background: Membranous glomerulopathy is a common complication of renal allograft. However, its incidence and prognosis are not well defined, because an undetermined number of them pass undiagnosed under the generic epigraph of chronic allograft nephropathy.

Bone biopsy analysis revealed tryptase-positive mast cells that were positive for c-KIT, thus confirming the diagnosis of systemic mastocytosis.

Results. In addition to zoledronic acid (4 mg per month) and prednisolone (50 mg per day) treatment, the patient underwent kyphoplasty. The procedure was associated with

arterial hypotension which was most likely because of pressure-induced mast cell degranulation. Followup visits demonstrated stable bone mineral density and tolerable back pain while on zoledronic acid.

Conclusion. Systemic mastocytosis is a rare cause of vertebral fractures in young men. Because of the potential risk of pressure-induced release of the allergy mediator histamine, kyphoplasty for vertebral involvement IACS-10759 solubility dmso of systemic mastocytosis should be conducted with appropriate precautions.”
“Implantable cardioverter defibrillators (ICDs) have become an essential tool for primary and

secondary prevention of sudden cardiac death. Traditionally, defibrillation threshold (DFT) testing is part of the “”lege artis”" ICD implantation. Taking into consideration that the absolute mortality reduction in primary prevention trials is estimated around 8% and in secondary prevention trials around 7%, it is only in these patients that an acceptable DFT is expected to affect survival. Using a high-energy ICD, the likelihood of obtaining an inadequate DFT is about 2.5%. Thus, the number of patients needed to be subjected to DFT testing in order to avert one potential death is about 500. Application of antitachycardia pacing for rapid ventricular tachycardias further reduces the percentage of Prexasertib solubility dmso patients dependent on reliable ICD defibrillation capability. Thus, the mortality rate that can be prevented by DFT testing is below 0.2%. This contrasts a 0.4% risk of life-threatening complications and a low but not negligible mortality risk owed to the procedure. Although in light of these data the balance between DFT-related risk and benefit seems to tilt toward the former, insights gained from prospective randomized trials will clarify whether the abandonment of routine DFT testing can be claimed on a rightful basis. (PACE 2009; 32:570-572)”
“Study learn more Design. Prospective

radiographic and clinical analysis.

Objective. Investigate the relationship between spinopelvic parameters and patient self reported outcomes on adult subjects with spinal deformities.

Summary of Background Data. It is becoming increasingly recognized that the study of spinal alignment should include pelvic position. While pelvic incidence determines lumbar lordosis, pelvic tilt (PT) is a positional parameter reflecting compensation to spinal deformity. Correlation between plumbline offset (sagittal vertical axis [SVA]) and Health Related Quality of Life (HRQOL) measures has been demonstrated, but such a study is lacking for PT.

Methods. This prospective study was carried out on 125 adult patients suffering from spinal deformity (mean age: 57 years).

We also compared the platelet counting using electroimpedance (PLT-El), platelet count using fluorescent optical (PLT-FO), and platelet-count manual (PLT-M) methods, using the ATPase inhibitor Sysmex XE 2100 automatic analyzer.

Results: Despite highly significant overall correlations between PLT-El and PLT-FO, PLT-El and PLT-M, and PLT-FO and PLT-M = 0.95 [all P < .001]), use of the PLT-El method resulted in widely overestimated

PLT counts in microcytic samples (MCV < 80 fL), compared with use of PLT-FO and PLT-M. Our results identify an MCV of 70 fL as the critical threshold below which PLT-El became unreliable.

Conclusion: The PLT-El mode overestimated PLT counts compared with PLT-FO and PLT-M modes in microcytic blood. Therefore, PLT-FO is the preferred method for PLT counting in patients with microcytic anemia when using an automated analyzer.”
“Phytochemical

investigation of the seeds of Althea officinalis L. (Malvaceae) led to the isolation of three new phytoconstituents, identified as n-hexacos-2-enyl-1,5-olide (altheahexacosanyl lactone), 2-hydroxycalamene (altheacalamene) and 5,6-dihydroxycoumarin-5-dodecanoate-6-D-glucopyranoside (altheacoumarin glucoside), along with the known phytoconstituents lauric acid, -sitosterol and lanosterol. The structures of these compounds buy INCB28060 were SB-715992 cost established on the basis of spectral analysis and chemical reactions.”
“Objective: To assess the diagnostic performance of transabdominal sonographic measurement of cervical length in identifying patients with a short cervix. Methods: Cervical length was measured in 220 pregnant women using transabdominal and transvaginal ultrasound (US). Reproducibility and agreement between and within both methods were assessed. The diagnostic accuracy of transabdominal US for identifying

cases with a cervical length <25 mm was evaluated. Results: Twenty-one out of 220 cases (9.5%) had a cervical length <25 mm by transvaginal US. Only 43% (n = 9) of patients with a short cervix were correctly identified by transabdominal US. In patients with a cervical length of <25 mm by transvaginal US, transabdominal measurement of the cervix overestimated this parameter by an average of 8 mm (95% LOAs, -26.4 to 10.5 mm). Among women without a short cervix, transabdominal US underestimated cervical length on average (LOA) by 1.1 mm (95% LOAs, -11.0 to 13.2 mm). Transvaginal US was also more reproducible (intra-class correlation coefficient: (ICC) (0.96; 95% CI, 0.94 to 0.97) based on comparisons between 2D images and immediately acquired 3D volume datasets relative to transabdominal US (ICC: 0.71; 95% CI, 0.57 to 0.84).

Antiepileptic drugs

did not effectively control the seizures. The pathology of the left frontoparietal lobe biopsy of the abnormal MRI signal showed typical neuronal loss, abundant lymphocytic infiltration into the perivascular space, and numerous microglial nodules. Bipolar electrocoagulation on functional cortexes, which failed to alter the course of the illness, was followed by high-dose prednisone (about 2 weeks worth), without improvement. Both functional hemispherectomies and anatomical hemispherectomies failed to halt the course of the illness, and contralateral seizures developed and became apparent after the operation, suggesting bilateral RE. (C) 2010 Elsevier Inc. All rights reserved.”
“Study Alisertib mw Design. Epidemiological study.

Objective. To investigate the incidence and risk factors for developing low back pain in active duty military population to include age, sex, race, and rank, and military Selleck Blasticidin S service.

Summary of Background Data. Low back pain is among the most common musculoskeletal conditions worldwide and is estimated to affect nearly two-thirds of the US population at some point in their lives. Low back pain is a multifactorial disease and many risk factors have been

implicated including age, race, sex, and marital status.

Methods. A query was performed using the US Defense Medical Epidemiology Database

(DMED) for the International Classification of Diseases, Ninth Revision, Clinical Modification code for low back pain (724.20). 13,754,261 person-years of data were investigated. Multivariate Poisson regression analysis was used to estimate the rate of low back pain per 1000 person-years, whereas controlling for sex, race, rank, service, age, and marital status.

Results. The overall unadjusted incidence rate of low back pain was 40.5 per 1000 person-years. Women, compared with men, had a significantly increased incidence rate ratio for low back pain of 1.45. The incidence rate ratio for the 40+ age Emricasan group compared with the 20 to 29 years of age group was 1.28. With junior officers as the referent category, junior-and senior-enlisted rank groups had increased incidence rate ratio for low back pain, 1.95 and 1.35, respectively. Each service, when compared with the Marines as the referent category, had a significantly increased incidence rate ratio of low back pain: Army: 2.19, Navy: 1.02, and Air Force: 1.54. Compared with single service members, significantly increased incidence rate ratio for low back pain were seen in married service members: 1.21.

Conclusion. Female sex, enlisted rank groups, service in the Army, Navy, or Air Force, age greater than 40 years, and a marital status of married were all risk factors for low back pain.”
“.

Nephrolithiasis was detected in 3 (5 %), 7 (9 %), and 21 (25 %) patients in the DGBI, DGRY, and TGRY groups, respectively. There were significant differences in the selleck chemicals frequency of nephrolithiasis between the DGBI and TGRY groups (p = 0.004),

and between the DGRY and TGRY groups (p = 0.011), but there was no significant difference between the DGBI and DGRY groups. Multivariate logistic regression analysis revealed that gender and extent of gastrectomy were independent risk factors associated with nephrolithiasis. Renal dysfunction was found in 5 patients (6 %) in the TGRY group, but was not found in either the DGBI or the DGRY group. Nephrolithiasis was detected in all these 5 patients, and a renal biopsy performed in one patient revealed the presence of

intratubular calcium oxalate crystals with chronic tubulointerstitial nephritis.

Total gastrectomy with R-Y reconstruction was an independent predictive factor for nephrolithiasis in patients with gastric cancer.”
“Variation of the activation parameters in the acylation of pyridine with esters and thioesters may be used as a tool for studying mechanisms of acyl transfer reactions in solution. Here, the effect of substituents in benzene and pyridine derivatives on the activation parameters Delta X (not equal) (where X stands for enthalpy H, entropy S, or Gibbs energy G) in terms of an equation analogous to the Hammett equation is used to estimate the reaction constant delta I”"X (not equal). The linear dependence https://www.sellecn.cn/products/q-vd-oph.html of the reaction constant delta I”"H (int) (not equal) on delta I”"G (not equal) provides

an alternative LY3023414 mw way of assessing variations in the pyridine acylation mechanism when one step of the process is the only rate-determining step.”
“A new lignan glycoside, 7 alpha, 7′beta-bis-(4-hydroxy-3-methoxyphenyl)-7,90: 70,9-diepoxylignan- 8 alpha II, 8′alpha-O-b-D-(2 ”,7′alpha-epoxy)-glucopyranoside, named elshrugulosain (1), has been isolated from the EtOH extract of Elsholtzia rugulosa, together with six known compounds, (2)-bornyl (E)-3,4,5-trimethoxycinnamate, apigenin, luteolin, apigenin-7-O-beta-D-glucopyranoside, luteolin-7-O-beta-D-glucopyranoside, and luteolin-3′- glucuronate methyl ester. Their structures were characterized by spectroscopic methods and comparison with the data in the literature. On the basis of detailed 1D and 2D NMR spectral analysis, as well as X-ray crystallographic diffraction, the NMR spectroscopic data of (2)-bornyl (E)-3,4,5-trimethoxycinnamate were revised and assigned completely.”
“The present study was conducted out to determine hyperforin, hypericin, pseudohypericin, chlorogenic acid, rutin, hyperoside, quercitrin, quercetin, kaempferol, apigenin-7-O-glucoside and amentoflavone contents of Hypericum adenotrichum, an endemic plant species to Turkey.