These findings suggest early treatment with disease modifying the

These findings suggest early treatment with disease modifying therapies may be necessary to influence outcomes. (c) 2013

Osteoarthritis Research Society International. Published by Elsevier Ltd. All rights reserved.”
“Introduction: LY2606368 price During human pregnancy, circulating concentrations of components of the renin-angiotensin system increase, but pressor refractoriness to angiotensin II (Ang-II) is observed. Given the importance of the Ang-II pressor response in deciding susceptibility to preeclampsia and of the Ang-II system for controlling uterine vasoreactivity, we sought to address the effects of pregnancy on the reactivity of the isolated uterine artery (UA) in mice.

Materials and methods: Blood pressure was measured throughout pregnancy in awake C57BL/6J mice. UA segments were isolated from three groups of animals (non-pregnant, mid [day 12-13] and late [day 18-19] gestation) and studied by wire

myography.

Results: UA diameters, KCl-mediated responses, and acetylcholine-dependent vasorelaxation were greater at mid and late gestation than in non-pregnant animals. Ang-II responses were also greater during pregnancy, with an increased contraction in response to AT2 receptor blockade at mid-gestation. AT1 receptor blockade abolished the Ang-II response in all groups.

Conclusions: Study findings are consistent with the possibility that AT2 receptor-mediated vasodilatation plays a role in modulating Ang-II contractile responses in pregnancy.”
“Background:

Chronic renal C59 Wnt clinical trial failure (CRF) is associated with hypertension, proteinuria, loss Dibutyryl-cAMP molecular weight of myogenic constriction (MC) of mesenteric arteries and increased production of reactive oxygen species (ROS) under experimental conditions. Previous results showed that ACE (angiotensin-converting enzyme activity) inhibitor therapy is effective in slowing down the progression of disease. Therefore, we wanted to study whether the inverse AT(1) (angiotensin II type 1) receptor agonist, losartan (LOS) was effective in preventing loss of MC in a rat model of CRF and whether acute ROS scavengers could improve MC.

Methods: Rats underwent 5/6 nephrectomy (5/6 Nx) and were treated with vehicle or LOS (20 mg/kg/day; 5/6 Nx + LOS) for 12 weeks. Thereafter, the MC of the mesenteric arteries were measured in the presence and/or absence of tempol and catalase. Systolic blood pressure and proteinuria were measured weekly.

Results: Systolic blood pressure and proteinuria in the 5/6 Nx + LOS group were significantly lower than in the 5/6 Nx group. Moreover, the MC of 5/6 Nx + LOS arteries was significantly increased compared with the untreated 5/6 Nx group (maximum MC, 32.3 +/- 6.9 vs 8.9 +/- 3.8% (p < 0.01)).

Factors influencing willingness were mainly physical and

Factors influencing willingness were mainly physical and GSK J4 cell line cognitive impairment. Participating in research was a positive experience for most patients and carers but a minority experienced distress. This was related to: characteristics of the participants; the type of research; or the way it was conducted. Participatory study designs were found particularly suitable for enabling the inclusion of a wide range of participants.

Conclusion: The evidence explored within this study demonstrates that the ethical concerns regarding patient participation in EoL care research

are often unjustified. However, research studies in EoL care require careful design and execution that incorporates sensitivity to participants’ needs and click here concerns to enable their participation. An innovative conceptual model for research participation relevant for potentially vulnerable people was developed.”
“Purpose

of reviewTo summarize the recent findings about the roles of scavenger receptor class B type I (SR-BI) in immunity and discuss the underlying mechanisms by which SR-BI prevents immune dysfunctions.Recent findingsSR-BI is well known as a high-density lipoprotein (HDL) receptor playing key roles in HDL metabolism and in protection against atherosclerosis. Recent studies have indicated that SR-BI is also an essential modulator in immunity. SR-BI deficiency in mice causes immune dysfunctions, including increased atherosclerosis, elevated susceptibility to sepsis, impaired lymphocyte homeostasis, and autoimmune disorders. SR-BI exerts its protective roles through a variety of HDL-dependent and HDL-independent mechanisms. SR-BI is also involved in hepatitis C virus cell entry. A deficiency of SR-BI in humanized mice has been shown to decrease hepatitis C virus infectivity.SummarySR-BI regulates immunity via multiple mechanisms and its deficiency causes numerous diseases. A comprehensive understanding of the roles of SR-BI in protection against immune dysfunctions may

provide a therapeutic target for intervention against its associated diseases.”
“Excessive sleepiness (ES) is a major but underestimated public health concern associated with significant impairments in alertness/wakefulness and significant morbidity. Ganetespib manufacturer The term ES has been used in the sleep medicine literature for years, but due to its nonspecific symptoms (ie tiredness or fatigue), it frequently goes unrecognized or is misdiagnosed in primary care. In some cases ES arises due to poor sleep habits or self-imposed sleep deprivation; however, ES is also a key component of a number of sleep/wake disorders and multiple medical and psychiatric disorders. Identification and treatment of ES is critical to improve the quality of life and well-being of patients and for the safety of the wider community.

The median

lifespan estimated from the 371 individuals in

The median

lifespan estimated from the 371 individuals in the international fibrodysplasia ossficans progressiva community who were alive and the sixty who had died was fifty-six years (95% confidence interval, fifty-one to sixty years). The most common causes of death in patients with fibrodysplasia ossificans progressiva were cardiorespiratory failure from thoracic insufficiency syndrome (54%; median age, forty-two years) and pneumonia (15%; median age, forty years).

Conclusions: Fibrodysplasia ossificans progressiva is not only an extremely disabling disease but also a condition of considerably shortened lifespan. The most common cause of death in patients with fibrodysplasia ossificans progressiva is cardiorespiratory failure from thoracic insufficiency syndrome.”
“BackgroundPneumonia frequently affects solid organ transplant (SOT) recipients, with high morbidity and mortality. BB-94 datasheet However, the few studies on pneumonia in this population are mainly retrospective, single-center, and long-term studies, or include patients with only one type of SOT or a specific etiology. We performed a point prevalence study to investigate epidemiology, diagnosis, therapy, and outcome of pneumonia in an unselected SOT population.

MethodsItalian and Spanish transplant centers were invited to report on GW4064 in vivo all SOT recipients with pneumonia treated during 2 separate weeks (1 each in February and June 2012).

ResultsIn total,

35 centers (18 in Italy, 17 in Spain) agreed to participate and collected 54 cases. The incidence of pneumonia was 10.1 episodes/1000 recipients/year. Pneumonia was classified as late (>6months) in 70.4% of cases. Pneumonia was also classified as community-acquired (CAP), healthcare-associated (HCAP), and hospital-acquired (HAP) pneumonia in 40.7%, 38.9%, and 20.4% of cases, respectively. An attempt to microbiological diagnosis (1 sample) was made in 94.4% of patients, with a diagnostic yield of 60.7%.

Causative agents included bacteria (87.1%), virus (29%), and fungi (6.4%). A multidrug-resistant bacterium was isolated in 18.2%, 40%, and 100% of patients with CAP, HCAP, and HAP (P=0.007), respectively. Overall, 11.1% LY2835219 nmr of patients were admitted to the intensive care unit, 3.7% developed graft rejection, and graft function deteriorated in 18.5%. In-hospital mortality was 1.9%.

ConclusionPneumonia remains a frequent problem in SOT recipients, although it occurs later in patients who are in better physical health. Therefore, harmful pathogens and worse outcome are less common than previously thought.”
“Background: Accurate analysis of osseous glenoid morphology is important in treating glenohumeral arthritis and instability. Two-dimensional computed tomography scans are used to evaluate glenoid alignment. Accuracy of this method is dependent on the angle of axial reconstruction in relation to the position of the scapula.

The average time to union was 10 0 months +/- 2 0 months Eight p

The average time to union was 10.0 months +/- 2.0 months. Eight patients developed nonunion and 11 patients developed infections. The average follow-up time is 2.4 years +/- 0.2 years. Patients were divided into two groups for analysis according to the interval time. The rate of infection was significantly increased in patients who had an interval of more than 7 days from the time of injury to flap coverage.

Conclusions: The VAC therapy may help to reduce the flap size and need for a flap transfer for type IIIB open tibial fractures. However, prolonged periods of VAC usage, greater than 7 days, should be avoided to reduce higher infection and amputation risks.”
“In this study, wild Saccharomyces cerevisiae

strains, isolated from spontaneously fermenting grapes of different varieties and origins, were submitted to genetic analysis using different molecular GSK1120212 mouse techniques, such as amplification of genes coding for cell wall proteins and containing minisatellite-like sequences, karyotyping, mtDNA-RFLP, Erastin in vitro and analysis of the delta region. The lowest discriminative power was obtained by minisatellites analysis, in particular the amplification of AGA1 genes. Karyotyping and mtDNA-RFLP analysis yielded the same differentiation among the strains, whereas the

PCR amplification of delta sequences resulted the best method as it was fast and it showed a very high discriminative power. In any case, it has to be underlined that some strains, https://www.sellecn.cn/products/crt0066101.html showing the same delta profiles, exhibited a different mtDNA restriction profile and electrophoretic karyotype, suggesting

that more than one molecular marker is required for reliable strain discrimination. Although the techniques used revealed a different resolution power, they all revealed a genetic relationship among strains isolated from spontaneous fermentation of grapes of different origins. In fact, none of the typing methods was able to discriminate some strains isolated from different areas.”
“Purpose: To evaluate the efficacy of targeted prostate biopsy using magnetic resonance imaging (MRI) and to characterize clinicopathologic features of tumors detected with targeted prostate biopsy in men with previous negative prostate biopsy results.

Patients and Methods: We prospectively studied 87 patients with a persistently increasing level of serum prostate-specific antigen (PSA), at least one previous set of negative 12-core prostate biopsies, and normal digital rectal examination. All patients were examined with combined T2-weighted and diffusion-weighted MRI before undergoing the prostate biopsy. Prostate biopsy was performed using transrectal ultrasonography-guided standard 12 cores plus targeted biopsy to suspicious region(s) as identified on T2 images on their MRI.

Results: Of a total of 87 cases, 82 (94.2%) patients had suspicious lesion(s) on their MRI.

Fetal heart rate characteristics were assessed by labor and deliv

Fetal heart rate characteristics were assessed by labor and delivery nurses, and categories were assigned by computer using definitions from the

Eunice Kennedy Shriver National Institute of Child Health and Human Development. The duration of time in each category was calculated and correlated with newborn outcome.

RESULTS: Forty-eight thousand four hundred forty-four patients were identified. Considering all of labor, category I was present 77.9% of the time, category II was present 22.1% of the time, and category III was present 0.004% of the time. In the last 2 hours before delivery, category I decreased to 60.9% of the duration, category II increased to 39.1%, and category III increased to 0.006%. Newborns of women whose last 2 hours were exclusively category I did well; only 0.6% had 5-minute Apgar Z-VAD-FMK scores less than 7, and 0.2% had low Apgar scores with neonatal intensive care unit (NICU) admission. When more than 75% of the last 2 hours was category II, low 5-minute Apgar score increased to 1.3% of patients, and low 5-minute Apgar score

with NICU admission increased to 0.7% ( both P < .001).

CONCLUSION: Category I and category II fetal heart rate patterns are common in labor, and category III patterns are rare. Increasing time in category II in the last 2 hours of labor is associated with increased short-term AZD6738 newborn morbidity. (Obstet Gynecol AZD6244 mw 2011;118:803-8) DOI: 10.1097/AOG.0b013e31822f1b50″
“Objectives: To describe a method using confidence intervals (CIs) to estimate the sample size for a pilot randomized trial.

Study Design: Using one-sided CIs and the estimated effect size that would be sought in a large trial, we calculated the sample size needed for pilot trials.

Results: Using an 80% one-sided CI, we estimated that a pilot trial should have at least 9% of the sample size of the main planned trial.

Conclusion: Using the estimated effect size

difference for the main trial and using a one-sided CI, this allows us to calculate a sample size for a pilot trial, which will make its results more useful than at present. (C) 2013 Elsevier Inc. All rights reserved.”
“Objective: To determine the maximum time-dependent stability of 22 analytes requested frequently for add-on testing in heparinized plasma samples stored at refrigerator temperature for up to 4 days and to compare the values for the maximum time-dependent stability (T-max) of each analyte against previously published values.

Methods: We quantified the plasma concentration of 22 chemistry analytes in patients’ plasma samples stored at refrigerator temperature for up to 24 hours (study 1, n = 40) or 4 days (study 2, n = 39). All analyte measurements were performed using the Siemens Dimension Vista 1500 chemistry analyzer. The maximum storage time over which an analyte was considered stable was defined as the latest time point at which 95.

Many

Many CA-4948 nmr different decompressive surgeries may be applied for thoracic myelopathy caused by OPLL. However, there are variations among patients with thoracic myelopathy because of OPLL, and the possibility of postoperative paralysis remains a major risk, and to date, the effective treatment option for thoracic myelopathy caused by OPLL is still controversial.

Methods.

The patient was a 60-year-old woman with isolated OPLL at T10/T11 with anteriorly compression in the spinal cord. Posterior decompression by laminectomy and anterior decompression by extirpation of the OPLL were performed by a posterior-lateral approach. First, spinal cord retrocession was achieved to relieve the compression of OPLL by posterior decompression. Second, the posterior 2/3 of involved vertebral bodies and the T10/T11 intervertebral disc were resected with the anterior-lateral approach. Then, the OPLL was extirpated from the anterior direction in order to relieve the spinal cord compression completely, and the resected ribs were used for the anterior column reconstruction. Finally, a titanium device was secured over the area of

surgery to stabilize the spinal column.

Results. Complete removal of ZD1839 order the ossification was achieved in the present patient. Satisfactory surgical outcome of this patient was confirmed by a follow-up of 3 years after operation.

Conclusion. The present case suggests that posterior decompression, anterior extirpation of OPLL, and interbody fusion with spinal instrumentation only via a modified posterior-lateral approach is a novel, safe, and effective procedure for surgical treatment of thoracic OPLL.”
“Concentration dependence click here of mechanical modulus of two biopolymer systems, i.e., xanthan-locust bean (X/L) mixture and fish muscle protein (suritni) was evaluated and compared at a wide range of polymer concentrations. A small amplitude oscillatory shear test was performed to measure changes in storage (G’) modulus during gelation and after gelation. Critical concentration (Cc) of the X/L mixture and surimi

gel was determined to be 0.15 g/100 mL of solvent and 2.04 g/100 g of solvent, respectively. Reduced concentration (C-R=C-L/Cc) was used to compare the power-law dependence of modulus of the two systems. The elasticity exponent of the X/L mixture and surimi gel was determined to be 2.4 and 1.97, respectively. The concentration dependence of two biopolymer gel systems such as physical gels (X/L) and chemicals gels (fish muscle protein) theoretically demonstrated that the difference of flexibility of junctions in the networks might distinguish the elasticity of each gel.”
“The robustness of ecosystems to species losses is a central question in ecology, given the current pace of extinctions and the many species threatened by human impacts, including habitat destruction and climate change.

From

the results, the sizes of these nanoparticles were a

From

the results, the sizes of these nanoparticles were about 100 nm. Fluorescence microscope observation supported the enhanced cellular uptake of the micelles. The order of the inhibition on tumour volume growth was: EPI-loaded BP micelles >EPI-loaded MATP micelles >EPI-loaded poloxamer micelles >EPI. BP micelles showed significant antitumour activity and low toxicity, compared with the non-targeted micelles. With the advantage of EPR effect Evofosfamide mw and tumour-targeting potential, BP conjugate micelles might be developed as a new system for chemotherapeutics.”
“Two new lanostane-type triterpenoids, inonotsutriols D (1) and E (2), were isolated from the sclerotia of Inonotus obliquus (Pers.: Fr.) Pil. (Japanese name: kabanoanatake; Russian name: chaga). Their structures were determined this website to be lanost-8-ene-3 beta,22R,24R-triol (1) and lanost-8-ene-3 beta,22R, 24S-triol (2) on the basis of spectral data, including 2D NMR analysis. In addition, major compounds, inotodiol (3), trametenolic acid (4), 3 beta-hydroxylanosta-8,24-dien-21-al (5), 21-hydroxylanosterol (6), inonotsuoxide A (7) and inonotsuoxide B (8) were identified, and all compounds, except 2, were evaluated for their

cancer cell growth inhibitory activity against P388, HL-60, L1210 and KB cell lines. (C) 2011 Phytochemical Society of Europe. Published by Elsevier B.V. All rights reserved.”
“The cerebellum is one of the well-known targets of the pathological processes underlying spinocerebellar ataxia type 2 (SCA2) and type 3 (SCA3). Despite its pivotal role for the clinical pictures of these polyglutamine ataxias, no pathoanatomical studies of serial tissue sections through the cerebellum have been performed in SCA2 and SCA3 so far. Detailed

pathoanatomical AP24534 inhibitor data are an important prerequisite for the identification of the initial events of the underlying disease processes of SCA2 and SCA3 and the reconstruction of its spread through the brain. In the present study, we performed a pathoanatomical investigation of serial thick tissue sections through the cerebellum of clinically diagnosed and genetically confirmed SCA2 and SCA3 patients. This study demonstrates that the cerebellar Purkinje cell layer and all four deep cerebellar nuclei consistently undergo considerable neuronal loss in SCA2 and SCA3. These cerebellar findings contribute substantially to the pathogenesis of clinical symptoms (i.e., dysarthria, intention tremor, oculomotor dysfunctions) of SCA2 and SCA3 patients and may facilitate the identification of the initial pathological alterations of the pathological processes of SCA2 and SCA3 and reconstruction of its spread through the brain.”
“Background: Because of the availability of new technology, the spectrum of endovascular treatment for intracranial aneurysms has expanded widely.


“Kaposiform hemangioendothelioma (KHE) is a rare locally a


“Kaposiform hemangioendothelioma (KHE) is a rare locally aggressive signaling pathway vascular tumor that usually presents as a superficial or deep soft tissue mass with associated cutaneous lesions. We report a unique spinal KHE with painless thoracic scoliosis in a 14-year-old girl. She underwent simultaneous tumor biopsy, spinal deformity correction and fusion. At 3 years follow-up, the patient’s MRI showed no significant deterioration of process without any therapy. KHE presenting as scoliosis is rare and to our knowledge

this is the first recognized case in the reported world literature.”
“Odontogenic abscess can become an orbital cellulitis, causing potentially serious intracranial and orbital complications. The full clinical complications from odontogenic orbital cellulitis in a pediatric patient are rarely seen daily in hospital emergency departments. Thus, odontogenic click here orbital cellulitis still remains a rarity, resulting

in a medical challenge. With this in mind, this study aimed to describe a case of periorbital and orbital cellulitis resulting from odontogenic origin in a 6-year-old patient who was successfully treated by performing intravenous antibiotic administration combined with surgical drainage.”
“Heart failure (HF) is an emerging epidemic affecting 15 million people in the USA and Europe. HF-related mortality was unchanged between 1995 and 2009, despite a decrease in the incidence of cardiovascular

disease. Conventional explanations include an aging population and improved treatment of acute myocardial infarction and HF. An adverse relationship between structure and function is the central theme in patients with systolic dysfunction. The normal elliptical ventricular shape becomes spherical in ischemic, valvular, and nonischemic dilated cardiomyopathy. Therapeutic decisions should be made on the basis of ventricular volume rather than ejection fraction. When left ventricular end-systolic volume index exceeds 60 ml/m(2), medical therapy, CABG surgery, and mitral repair have limited benefit. This form-function PLX-4720 manufacturer relationship can be corrected by surgical ventricular restoration (SVR), which returns the ventricle to a normal volume and shape. Consistent early and late benefits in the treatment of ischemic dilated cardiomyopathy with SVR have been reported in > 5,000 patients from various international centers. The prospective, randomized STICH trial did not confirm these findings and the reasons for this discrepancy are examined in detail. Future surgical options for SVR in nonischemic and valvular dilated cardiomyopathy, and its integration with left ventricular assist devices and cell therapy, are described.”
“Objective: There is ongoing debate on whether an association between radiographic and clinical osteoarthritis (OA) exists.

Proper temperature was required to catch the tough-brittle transi

Proper temperature was required to catch the tough-brittle transition induced by phase separation. (c) 2011 Wiley Periodicals, Inc. J Appl Polym Sci 121: 445-453, 2011″
“Objective. The aim of the present study was to evaluate the feasibility of clinically applying facial-submental artery island flaps on primary reconstruction of oral floor defects following cancer ablation.

Study design. Facial-submental artery island flaps were used to repair defects in the floor of the mouth after cancer ablation in 7 patients (5 men and 2 women; age range, 43-64 years; average age, 51.2 years). Two patients were classified as T1NoMo, and 5 were classified as T2NoMo.

The skin paddles ranged in size from 4.0 x 10.0 cm SC75741 in vivo selleck chemicals llc to 5.0 x 11.0 cm.

Results. Six flaps survived completely, and the success rate was therefore 86% (6 of 7). The remaining flap showed minimal partial necrosis. All of the patients were followed for 6 to 25 months. The speech and swallowing functions following surgery were well recovered, and the patients were satisfied with their facial appearance.

Conclusion. Facial-submental artery island myocutaneous flaps are suitable for repairing small and medium-sized defects of the oral floor. (Oral Surg Oral Med Oral Pathol Oral Radiol Endod

2010; 109: e12-e16)”
“Lasers are widely used to modify the internal structure of semitransparent materials for a wide variety of applications, including waveguide fabrication and laser glass damage healing. The gray diffusion approximation used in past models to describe radiation cooling is not adequate for these materials,

particularly near the heated surface layer. In this paper we describe a computational model based upon solving the radiation transport equation in 1D by the P(n) method with similar to 500 photon energy bands, and by multi-group radiation diffusion in 2D with fourteen photon energy bands. The model accounts for the temperature-dependent absorption of infrared laser light and subsequent redistribution of the deposited heat by both radiation and conductive transport. We present representative results for fused Linsitinib silica irradiated with 2-12 W of 4.6 or 10.6 mm laser light for 5-10 s pulse durations in a 1 mm spot, which is small compared to the diameter and thickness of the silica slab. We show that, unlike the case for bulk heating, in localized infrared laser heating radiation transport plays only a very small role in the thermal response of silica. (C) 2011 American Institute of Physics. [doi: 10.1063/1.3549829]“
“In this article, we present a facile method for the synthesis of an azo-group-bound silica (SiO(2)-azo) initiator. The azo groups were introduced onto the surface of silica (SiO(2)) nanoparticles via facile condensation between 4,4`-azobis-4-cyanopentanoic acid and the alkyl-hydroxyl groups – immobilized on the SiO(2) nanoparticle surface under ambient conditions.

The prokaryotic serine protease

alpha-lytic protease (alp

The prokaryotic serine protease

alpha-lytic protease (alpha LP) has done just that, as its unfolding is both very slow (t(1/2) similar to 1 year) and so cooperative that partial unfolding is negligible, providing a functional advantage over its thermodynamically stable homologs, such as trypsin. Previous studies have identified regions of the domain interface as critical to alpha LP unfolding, though a complete description of the unfolding pathway is missing. In order to identify the alpha LP unfolding pathway and the mechanism for its extreme cooperativity, we performed high temperature molecular dynamics unfolding simulations of both alpha LP and Selumetinib price trypsin. The simulated alpha LP unfolding pathway produces a robust transition

state ensemble consistent with prior biochemical experiments and clearly shows that unfolding proceeds through a preferential disruption of the domain interface. Through a novel method of calculating unfolding cooperativity, we show that alpha LP unfolds extremely cooperatively while trypsin unfolds gradually. Finally, by examining the behavior of both domain interfaces, we propose a model for the differential unfolding cooperativity of alpha LP and trypsin involving three key regions that differ between the kinetically stable and thermodynamically stable classes of serine proteases.”
“Malaysia is a medium endemic selleck kinase inhibitor country for hepatitis B virus (HBV) infection but little is known about HBV strains circulating in Malaysian blood donors. Viral load, HBsAg concentrations and nested PCR products from 84 HBV surface selleck antigen (HBsAg) positive samples were analysed in detail. Median viral load was 3050 IU/mL and median HBsAg 1150 IU/mL. Fifty-six full genome, 20 pre-S/S, 1 S gene and six

basic core promoter/precore-only sequences were obtained. Genotypes B and C were present at a ratio of 2:1, and two genotype D samples were obtained, both from donors of Indian background. Phylogenetically, genotype B was more diverse with subgenotypes B2-5, B7 and B8 present, while most genotype C strains were from subgenotype C1. Genotypes B and C were equally frequent in ethnic Malays, but 80% of strains from Chinese were genotype B. HBsAg concentrations were higher in genotype C than in genotype B, in Chinese than Malays and in donors under the age of 30. HBV vaccine escape substitutions (P120S/T, I126N and G145G) were present in six strains. In the large surface protein, immuno-inactive regions were more mutated than CD8 epitopes and the major hydrophilic region. Strains of genotype B or from ethnic Malays had higher genetic diversity than strains of genotype C or from Chinese donors. Hence HBV strains circulating in Malaysia are phylogenetically diverse reflecting the ethnic mix of its population.