[37] With caudal shifting, a safe and tension-free DDA can be fas

[37] With caudal shifting, a safe and tension-free DDA can be fashioned, although the long-term efficacy of this technique still needs further verification. It is important to note that skeletonization of the common hepatic duct will jeopardize its blood supply and thus must

be prohibited. There is no definite evidence that method of BR is related to BAS.[13, 38] A retrospective study by our center compared DDA and HJ in terms of the incidence of BAS after adult RLDLT but observed no difference. However, another retrospective study comparing the two methods found that DDA was GPCR Compound Library associated with a significantly higher chance of BAS after pediatric LDLT using grafts from left livers.[39] A recent study reported that the routine use of microsurgical BR in pediatric LDLT greatly reduced the rate of BAS.[24] All in all, a randomized controlled trial comparing DDA and HJ see more is needed before any one of them can claim superiority. Impaired blood supply damages the bile duct. Blood supply of the bile duct is mainly from the arterial system,[40, 41] and skeletonization of the duct renders it ischemic. The supraduodenal periductal plexus supplies the graft

bile duct. Dissection around the hilar plate should be kept to the minimum. Ikegami et al.[25] reported that the technique of minimal hilar dissection resulted in a significantly lower incidence of BAS after adult LDLT with DDA when compared with the conventional technique (14.6% vs 32.1%, P = 0.003). Complete hilar plate encircling can also preserve the periductal blood

supply since the bile duct and the hepatic artery are located within the same hilar sheath.[20] Biliary anomaly in grafts poses a technical challenge and is associated with a higher incidence of transplant failure. About two thirds of right-lobe grafts contain a single right hepatic duct, and the vast majority of the remaining one third contain two hepatic ducts.[42] As a corollary, most of the time, BR is done by anastomosing a single graft duct with an opening in the recipient duct or jejunum. If necessary, reduction ductoplasty is performed.[24] If there are two graft ducts and they are not more than 5 mm apart, DDA can be performed find more with incorporation of the hilar plate. Lin et al.[24] have described four methods for BR with two graft ducts: (i) The two graft ducts are merged into one opening by ductoplasty and the opening is then anastomosed with an opening in the recipient duct or jejunum. This method is used when the distance between the two graft ducts is not bigger than the diameter of the smaller duct opening. (ii) The two graft ducts are anastomosed with two openings in the recipient duct or jejunum. This “2-to-2 unmixed reconstruction” is used when the distance between the two graft ducts is bigger than the diameter of the smaller duct opening. (iii) One of the two graft ducts is anastomosed with the recipient duct and another with the recipient jejunum.

The gold standard was the neurologists’ clinical

The gold standard was the neurologists’ clinical CHIR 99021 diagnosis, according to the International Classification of Headache Disorders, 2nd edition.

A subset of patients was randomly selected to revaluation, in order to determine test–retest reliability. The validity measures of the test were calculated. Results.— A total of 142 patients were included, 83.8% of which women, with an age average of 39.2 years. Clinical diagnosis of migraine was made in 63.4% of the patients. The Portuguese version of ID-Migraine™ presented a sensitivity of 0.94 (95% CI 0.87-0.97), specificity of 0.60 (95% CI 0.46-0.73) and a positive predictive value of 0.80 (95% CI 0.71-0.87). Calculated Cronbachs’ alpha was 0.78 and kappa coefficient 0.60. Conclusions.— The Portuguese version of ID-Migraine™ was of easy and rapid application and well accepted by patients. Its validity measures were identical to the 3 other versions of the same questionnaire – English (original), Italian, and Turkish. The Portuguese

version of ID-Migraine™ is a valid screening tool for migraine, the first that can be used in Portuguese speaking communities although the low literacy rates in some of these countries may prevent its generalized application throughout the world. “
“Medication overuse headache (MOH) is a subset of chronic daily headache, occurring from overuse of 1 or more classes of migraine abortive medication. Acetaminophen, combination analgesics RO4929097 (caffeine combinations), opioids, barbiturates (butalbital), non-steroidal anti-inflammatory drugs, and triptans are the main classes of drugs implicated in the genesis of MOH. Migraine seems to be the most common diagnosis leading to MOH. The development of MOH is associated with both frequency of use of medication and behavioral predispositions. MOH is not a unitary concept.

The distinction between simple (type 1) vs complex (type 2) forms is based on both the class of overused medication and behavioral factors, including psychopathology and psychological drug dependence. MOH is a challenging disorder causing decline selleck chemicals llc in the quality of life and causing physical symptoms, such as daily and incapacitating headaches, insomnia, and non-restorative sleep, as well as psychological distress and reduced functioning. MOH is associated with biochemical, structural, and functional brain changes. Relapse after detoxification is a challenge, but can be addressed if the patient is followed over a prolonged period of time with a combination of prophylactic pharmacotherapy, use of abortive medication with minimal risk of MOH, withholding previously overused medication, and providing psychological (cognitive-behavioral) therapy.

Methods— A representative sample of 1230 inhabitants (515% wome

Methods.— A representative sample of 1230 inhabitants (51.5% women) was interviewed by a validated phone survey. TMD symptoms were assessed through 5 questions, as recommended by the American Academy of Orofacial Pain, in an attempt to classify possible TMD. Primary headaches were diagnosed based on the International Classification of Headache Disorders. Results.— When at least 1 TMD symptom was reported, any

headache happened in 56.5% vs 31.9% (P < .0001) in those with no symptoms. For 2 symptoms, figures were 65.1% vs 36.3% (P < .0001); for 3 or more symptoms, the difference was even more pronounced: 72.8% vs 37.9%. (P < .0001). Taking individuals without headache as the reference, the prevalence of at least 1 TMD symptom was increased in ETTH (prevalence ratio = 1.48, 95% Selleck Y 27632 confidence interval = 1.20-1.79), migraine (2.10, 1.80-2.47) and CDH (2.41, 1.84-3.17). At least 2 TMD symptoms also happened more frequently in migraine (4.4, 3.0-6.3), CDH (3.4; 1.5-7.6), and ETTH (2.1; 1.3-3.2), relative to individuals with no headaches. Finally, 3 or more TMD symptoms were also more common in migraine (6.2; 3.8-10.2) than in no headaches. Differences were significant for ETTH (2.7 1.5-4.8), and were numerically but not significant for CDH (2.3; 0.66-8.04). Conclusion.— Temporomandibular disorder symptoms are more common in migraine, ETTH, and CDH relative to individuals without

headache. Magnitude of association is higher for migraine. Future studies should clarify the nature of the relationship. “
“On December

15, 2012, a special edition of Lancet published the principal LY2157299 in vitro findings of the Global Burden of Disease Survey 2010 (GBD2010). Few reports are likely to have more profound meaning for people with headache, or carry greater promise for a better future, than the seven papers (and one in particular[1]) that were presented. GBD2010 was not the first such survey to be conducted, nor the first to give some recognition to the burden of migraine. The Global Burden of Disease Survey 2000 (GBD2000), conducted 12 years ago by the World Health Organization selleck (WHO), listed migraine as the 19th cause of disability in the world, responsible for 1.4% of all years of life lost to disability (YLDs).[2] This finding has been cited repeatedly ever since; it has fuelled attempts to generate political acceptance of headache as a public health priority,[3] and given credibility to calls for greater investment in headache care and research. It pushed headache into WHO’s field of view, and became an essential part of the platform on which the Global Campaign against Headache has since been built.[3-5] In spite of all this, GBD2000 considerably underreported the disability that migraine imposed on people throughout the world, and gave a very poor account of headache disorders collectively. The evidence was not there.

Conclusion: The method of visualizing the microvascular system in

Conclusion: The method of visualizing the microvascular system in the small intestinal villi of mice based on DiI labeling is a reliable and simple technology for the study of the pathogenesis of RE. Key Word(s): 1. fluorescent dye DiI; 2. Radiation Enteritis; 3. Microvasculature; 4. Visualization; Presenting Author: ASHA MISHRA Additional Authors: SHYAM PRAKASH, VINEET AHUJA, SIDDHARTHADATTA GUPTA, GOVINDKUMAR MAKHARIA Corresponding Author: Lorlatinib supplier ASHA MISHRA Affiliations: AIIMS Objective: Entry of immunogenic gluten peptides occurs through tight junctions (TJ) of the small intestine, which in turn are regulated by an array

of tight junction proteins. We quantified the mRNA expression of key transmembrane protein (Claudin 2 and 3, Occludin, JAM-A) and cytoplasmic protein (ZO-1) and secretary protein Zonulin. Methods: Multiple duodenal biopsies check details from 20 treatment naïve celiac disease patients and 16 anti-tTG negative controls having normal villous architecture were obtained. After extraction of mRNA, transcriptional expression of key tight junction transmembrane proteins (Claudin 2, claudin 3, occludin, JAM-A), cytoplasmic protein (ZO-1) and a secretary protein (Zonulin) was analyzed using real time PCR (Stratagene, M×3005p).

Results: Results: In comparison to control, there was a significant overexpression of Cld-2 (p = 0.002) in treatment naive celiac disease patients. There was underexpression of some of the transmembrane proteins [claudin 3 (p = 0.007), Occludin (0.035) and JMA-A (p = 0.003) and cytoplasmic protein ZO-1 (p = 0.035)]. There

was no click here significant change in the expression of zonulin (p = 0.114) in patients with celiac disease compared with controls. Conclusion: Overexpression of tight junction proteins Claudin-2, a pore forming protein, account for increase in paracellular permeability in active celiac disease patients. Underexpression of Claudin 3, occludin, and a cytoplamic anchor protein ZO-1 also add up to loosening of tight junctions in active celiac disease patients. Key Word(s): 1. Zonula occludens; Presenting Author: PRASENJIT DAS Additional Authors: POOJA GOSWAMI, SIDDHARTHDATTA GUPTA, TAPOSHK DAS, TAPAS NAG, VINEET AHUJA, GOVINDK MAKHARIA Corresponding Author: GOVINDK MAKHARIA Affiliations: All India Institute of Medical Sciences Objective: The mechanism of altered intestinal permeability is different in celiac disease (CeD) and Crohn’s disease (CD). We studied the ultrastructure of tight junctions both at the baseline and 6 months after treatment of patients with CeD and CD. Methods: Endoscopic mucosal biopsies from treatment naïve patients with CeD (n = 12), active aCD (n = 10) and 5 control subjects both at baseline and 6 months after treatment were subjected to ultrastructure study using Morgagni 268D transmission electron microscopy. Functional analysis of tight junctions was assessed by estimating the intestinal permeability using the lactulose and mannitol ratio in the urine (HPLC).

First, there is a widespread perception that most investigational

First, there is a widespread perception that most investigational agents for the treatment of chronic

hepatitis C are being explored Hydroxychloroquine in easy-to-cure populations, at least partially devoid of negative prognostic factors.65 The lack of consistent safety and efficacy data in patients with advanced fibrosis/cirrhosis represents a major drawback in most, if not all, regimens. Although cirrhosis is likely going to lose its negative predictive power as a response moderator once potent anti-HCV regimens are available, it might nonetheless remain a key determinant of reduced safety with some regimens. Indeed, some drugs have side effects that might be worrisome in patients with cirrhosis, CHIR-99021 supplier such as increased bilirubin with simeprevir,66 while others (such as ASV) show significant pharmacokinetic modifications in patients with impaired liver function,67 and thus need to be managed with caution in this group of patients. The same safety questions need to be ascertained in post–liver transplantation patients as well as those on the transplant waiting list. To date, we only have two very preliminary case reports of posttransplant fibrosing cholestatic hepatitis C patients

who reached an SVR with either a triple therapy regimen of PEG-IFN/RBV and DCV68 or an IFN-free regimen of DCV plus SOF,69 in each case without any significant safety issue and without any clinically relevant drug-drug interaction see more with the

ongoing immunosuppressive regimen. Real-life studies of IFN-free regimens have shown surprisingly low rates of adherence to the correct treatment schedule and lower SVR rates compared with sponsored studies, meaning that once we move drugs into more difficult-to-cure patients, we might not completely replicate the data obtained by phase II trials.60, 70 Affordability of some of these innovative regimens will also be an issue. Whether anti-HCV regimens that provide small benefits in terms of SVR but radically improve patient tolerability will be deemed cost-effective by national health systems and hence be reimbursed universally is unclear. Given that cost-effective drugs such as TVR/BOC71, 72 are still not reimbursable in many countries, it is possible that these innovative regimens will be confined to groups of patients in whom TVR/BOC or PEG-IFN/RBV are either ineffective or unsafe. This might create a paradox where pharmaceutical innovation might not translate into clinical innovation, with some patients receiving marginally less effective and less tolerable drugs for cost-containing issues.

Yet, few experimental studies provide evidence that such variatio

Yet, few experimental studies provide evidence that such variation may lead to temporal divergence in life-history

strategy. The breeding season of a prolonged breeder, the Indian rice frog Fejervarya limnocharis, is interrupted by a mid-summer drainage between the two rice crops, which separates the breeding population into spring and summer cohorts. We used a common garden experiment to test whether tadpoles of the two cohorts have evolved different metamorphic strategies to cope with different environmental temperatures. In a temperature (low and high) by cohort (spring and summer) factorial experiment, we found both spring and summer tadpoles had greater body growth rates, less weight loss before metamorphosis, www.selleckchem.com/products/gsk1120212-jtp-74057.html and thus potentially higher fitness, when raised under their respective field temperatures. The spring tadpoles responded to low temperature with higher body weight at metamorphosis, while the summer tadpoles did not have such a response. On the other hand, while both spring and summer tadpoles responded to high temperature with accelerated developmental rates, summer tadpoles grew significantly faster than the spring ones. In conclusion, the study shows that spring and summer cohorts of Indian rice frog F. limnocharis use different life-history strategies

to Pirfenidone purchase obtain higher fitness in their respective thermal environments. “
“Little is known about interactions between the critically endangered Sumatran tiger Panthera tigris sumatrae and its prey because of the difficulties associated with see more detecting these species. In this study, we quantify temporal overlap between the Sumatran tiger and five

of its presumed prey species from four study areas comprising disturbed lowland to primary submontane forest. Data from 126 camera traps over 8984 camera days were used to estimate species activity patterns and, in turn, their overlap through the coefficient Δ (ranging from 0 to 1, i.e. no overlap to complete overlap). A newly developed statistical technique was applied to determine confidence intervals associated with respective overlap, which is important, as such measures of precision are usually not estimated in these types of study. Strong temporal overlap was found between tiger and muntjac Muntiacus muntjac (Δ=0.80, 95%CI=0.71–0.84) and tiger and sambar Cervus unicolor (Δ=0.81, 0.55–0.85), with the latter illustrating the importance of measuring precision. According to the foraging theory, Sumatran tigers should focus on expending lower levels of energy searching for and then capturing larger bodied prey that present the least risk. Hence, surprisingly, there was little overlap between the crepuscular tiger and the largest-bodied prey species available, the nocturnal tapir Tapirus indicus (0.52, 0.44–0.60), suggesting that it is not a principal prey species. This study provides the first insights into Sumatran tiger–prey temporal interactions.

Yet, few experimental studies provide evidence that such variatio

Yet, few experimental studies provide evidence that such variation may lead to temporal divergence in life-history

strategy. The breeding season of a prolonged breeder, the Indian rice frog Fejervarya limnocharis, is interrupted by a mid-summer drainage between the two rice crops, which separates the breeding population into spring and summer cohorts. We used a common garden experiment to test whether tadpoles of the two cohorts have evolved different metamorphic strategies to cope with different environmental temperatures. In a temperature (low and high) by cohort (spring and summer) factorial experiment, we found both spring and summer tadpoles had greater body growth rates, less weight loss before metamorphosis, Adriamycin clinical trial and thus potentially higher fitness, when raised under their respective field temperatures. The spring tadpoles responded to low temperature with higher body weight at metamorphosis, while the summer tadpoles did not have such a response. On the other hand, while both spring and summer tadpoles responded to high temperature with accelerated developmental rates, summer tadpoles grew significantly faster than the spring ones. In conclusion, the study shows that spring and summer cohorts of Indian rice frog F. limnocharis use different life-history strategies

to GSK-3 beta pathway obtain higher fitness in their respective thermal environments. “
“Little is known about interactions between the critically endangered Sumatran tiger Panthera tigris sumatrae and its prey because of the difficulties associated with click here detecting these species. In this study, we quantify temporal overlap between the Sumatran tiger and five

of its presumed prey species from four study areas comprising disturbed lowland to primary submontane forest. Data from 126 camera traps over 8984 camera days were used to estimate species activity patterns and, in turn, their overlap through the coefficient Δ (ranging from 0 to 1, i.e. no overlap to complete overlap). A newly developed statistical technique was applied to determine confidence intervals associated with respective overlap, which is important, as such measures of precision are usually not estimated in these types of study. Strong temporal overlap was found between tiger and muntjac Muntiacus muntjac (Δ=0.80, 95%CI=0.71–0.84) and tiger and sambar Cervus unicolor (Δ=0.81, 0.55–0.85), with the latter illustrating the importance of measuring precision. According to the foraging theory, Sumatran tigers should focus on expending lower levels of energy searching for and then capturing larger bodied prey that present the least risk. Hence, surprisingly, there was little overlap between the crepuscular tiger and the largest-bodied prey species available, the nocturnal tapir Tapirus indicus (0.52, 0.44–0.60), suggesting that it is not a principal prey species. This study provides the first insights into Sumatran tiger–prey temporal interactions.

At this moment, we know that other miRNAs predicted to potentiall

At this moment, we know that other miRNAs predicted to potentially target human AE2 mRNA, such as miR-149-3p and miR-765, were down-regulated in cultured PBC cholangiocytes versus normal cholangiocytes (Supporting

Fig. 2), and that expression of a third candidate (miR-944) was undetectable in both PBC and normal cholangiocytes. Thus, the particular role of miR-506 for the decreased AE2 in PBC livers appears to be further enlightened. Though PBMCs were also reported to have decreased AE2 mRNA expression in PBC,34 this decreased transcriptional expression is, however, unrelated to miR-506, because we found no up-regulation of miR-506 in the peripheral blood cells collected from patients with PBC (data not shown). PBC is currently selleck regarded as a multifactorial liver disease that may ensue from highly complex interactions of genetic- and environmental-related factors, a view that is being stressed by recent results of genome-wide association studies36-39 and more conventional genetic and epidemiological studies.40-43 Exposure of susceptible individuals to environmental agents, such as chemical/xenobiotics,

tobacco, alcohol, and a variety of microorganisms, may result in epigenetic alterations, which might include not only DNA methylation and histone modification, but also dys-regulated expression of miRNAs.23 Indeed, miRNAs are recently being considered as authentic effectors of environmental influences on gene expression and disease.23 The mechanisms leading to miR-506 up-regulation in PBC cholangiocytes remain to be elucidated, and involvement selleck compound of environmental agents may be postulated. Although in vivo animal experiments click here sound attractive to further explore this issue, unfortunately, rat and mouse animal models are not suitable, because the AE2 target sequence is present in the human AE2 mRNA,28 but not in the orthologous

sequences in rats and mice. On the other hand, the consequences of miR-506 up-regulation in the biliary epithelium might be more extensive than primarily inferred from its effects on AE2, and this possibility will certainly deserve further investigation in the future. Thus, miR-506 was also predicted by bioinformatic approaches to potentially target the 3′UTR region of human CK19 mRNA, with base complementarities to the sequence UGUCCUUUGGAGGGUGUCUUC. Interestingly, our western blotting data indicate that overexpression of miR-506 in H69 cholangiocytes result in down-regulation of CK19 protein expression (Supporting Materials and Supporting Fig. 3). In summary, our results identify a molecular mechanism (i.e., miRNA suppression of protein translation), which can account for the down-regulation of AE2 protein and activity in cholangiocytes of patients with PBC and provide direct evidence that a specific miRNA (i.e., miR-506) is important in the process. Our data therefore introduce the concept that miRNA dysfunction may be central to the pathogenesis of PBC.

At this moment, we know that other miRNAs predicted to potentiall

At this moment, we know that other miRNAs predicted to potentially target human AE2 mRNA, such as miR-149-3p and miR-765, were down-regulated in cultured PBC cholangiocytes versus normal cholangiocytes (Supporting

Fig. 2), and that expression of a third candidate (miR-944) was undetectable in both PBC and normal cholangiocytes. Thus, the particular role of miR-506 for the decreased AE2 in PBC livers appears to be further enlightened. Though PBMCs were also reported to have decreased AE2 mRNA expression in PBC,34 this decreased transcriptional expression is, however, unrelated to miR-506, because we found no up-regulation of miR-506 in the peripheral blood cells collected from patients with PBC (data not shown). PBC is currently FK506 in vivo regarded as a multifactorial liver disease that may ensue from highly complex interactions of genetic- and environmental-related factors, a view that is being stressed by recent results of genome-wide association studies36-39 and more conventional genetic and epidemiological studies.40-43 Exposure of susceptible individuals to environmental agents, such as chemical/xenobiotics,

tobacco, alcohol, and a variety of microorganisms, may result in epigenetic alterations, which might include not only DNA methylation and histone modification, but also dys-regulated expression of miRNAs.23 Indeed, miRNAs are recently being considered as authentic effectors of environmental influences on gene expression and disease.23 The mechanisms leading to miR-506 up-regulation in PBC cholangiocytes remain to be elucidated, and involvement learn more of environmental agents may be postulated. Although in vivo animal experiments selleck compound sound attractive to further explore this issue, unfortunately, rat and mouse animal models are not suitable, because the AE2 target sequence is present in the human AE2 mRNA,28 but not in the orthologous

sequences in rats and mice. On the other hand, the consequences of miR-506 up-regulation in the biliary epithelium might be more extensive than primarily inferred from its effects on AE2, and this possibility will certainly deserve further investigation in the future. Thus, miR-506 was also predicted by bioinformatic approaches to potentially target the 3′UTR region of human CK19 mRNA, with base complementarities to the sequence UGUCCUUUGGAGGGUGUCUUC. Interestingly, our western blotting data indicate that overexpression of miR-506 in H69 cholangiocytes result in down-regulation of CK19 protein expression (Supporting Materials and Supporting Fig. 3). In summary, our results identify a molecular mechanism (i.e., miRNA suppression of protein translation), which can account for the down-regulation of AE2 protein and activity in cholangiocytes of patients with PBC and provide direct evidence that a specific miRNA (i.e., miR-506) is important in the process. Our data therefore introduce the concept that miRNA dysfunction may be central to the pathogenesis of PBC.

Gastric xanthelasma was detected in 249 (77%) of the 3238 patien

Gastric xanthelasma was detected in 249 (7.7%) of the 3238 patients and was significantly associated with age ≥ 65 years, male gender, open-type atrophy, and the presence of gastric cancer (P < 0.0001, P = 0.0002, P < 0.0001 and P < 0.0001, respectively). Multivariate analysis revealed that the presence of gastric cancer was independently related to the presence of gastric xanthelasma (odds ratio 6.19 [3.95–9.70], P < 0.0001). Age/sex/atrophy-matched control analysis demonstrated that the presence of gastric xanthelasma was significantly associated with

the presence of gastric cancer (P < 0.0001). Moreover, the presence of xanthelasma in the upper region of the stomach was significantly associated with gastric cancer (P = 0.002). Gastric Selleckchem LY294002 xanthelasma was observed in 50 (47.6%) of 105 patients with gastric cancer. Gastric xanthelasma may serve as a warning sign for the presence of gastric cancer. “
“Alcoholic liver injury is a major public health issue

worldwide. Even though the major mechanisms of this disease have been established over the past decades, little is known about genetic susceptibility factors that may predispose individuals who abuse alcoholic beverages to liver damage and subsequent pathological conditions. We hypothesized that a panel of genetically diverse mouse strains may be used to examine the role of endoplasmic reticulum (ER) Cyclopamine stress and one-carbon metabolism in the mechanism of interindividual variability in alcoholic liver injury. We administered see more alcohol (up to 27 mg/kg/d) in a high-fat diet using an intragastric

intubation model for 28 days to male mice from 14 inbred strains (129S1/SvImJ, AKR/J, BALB/cJ, BALB/cByJ, BTBR T+tf/J, C3H/HeJ, C57BL/10J, DBA/2J, FVB/NJ, KK/HIJ, MOLF/EiJ, NZW/LacJ, PWD/PhJ, and WSB/EiJ). Profound interstrain differences (more than 3-fold) in alcohol-induced steatohepatitis were observed among the strains in spite of consistently high levels of urine alcohol that were monitored throughout the study. We found that ER stress genes were induced only in strains with the most liver injury. Liver glutathione and methyl donor levels were affected in all strains, albeit to a different degree. The most pronounced effects that were closely associated with the degree of liver injury were hyperhomocysteinemia and strain-dependent differences in expression patterns of one-carbon metabolism-related genes. Conclusion: Our data demonstrate that strain differences in alcohol-induced liver injury and steatosis are striking and independent of alcohol exposure and the most severely affected strains exhibit major differences in the expression of ER stress markers and genes of one-carbon metabolism.