Structured interviews represent the

mainstay of diagnosti

Structured interviews represent the

mainstay of diagnostic instruments in psychiatry, particularly those which allow some freedom to follow individual leads that may emerge. They can also be programmed for computerized scoring. For example, the Schedule for Clinical Assessment in Neuropsychiatry (SCAN)8 and Comprehensive Assessment of Symptoms and History (CASH)9 are excellent structured interviews and recording instruments for documenting the signs, symptoms, and history of subjects evaluated in research Inhibitors,research,lifescience,medical studies on the major psychoses and affective disorders. Nevertheless, structured interviews have substantial limitations that restrict their diagnostic validity. Any diagnosis that relies on the subjective interpretation Inhibitors,research,lifescience,medical of patient reports or laboratory tests, as well as on instrumental assessment, carries some risk of error. This error may be due to the equipment used (faulty equipment, poor calibration), to human error on the part of the assessors (poor training, carelessness, mislabeled samples or reports), or to the patients (misreporting or inconsistency in what patients Inhibitors,research,lifescience,medical say or do). Almost all diagnostic procedures include one or other of these elements. Medical diagnosticians are not infallible, and probably will never be so.9 Structured interviews provide broad descriptive coverage

in order to enable investigators to make diagnoses using a variety of criteria, but they cannot provide an appropriate instrument for making a differential diagnosis. The validity of arbitrarily constructed diagnoses can be temporary Inhibitors,research,lifescience,medical only. When a disorder becomes better understood, the symptoms held to be the most reliable may well prove to lose their importance as indicators of the condition. In time, phenomenologically (arbitrarily) constructed diagnoses and clinician “gold standard”

diagnoses should logically diverge. The poorer the correlation between the construct and the clinician diagnosis, the greater the probability that the construct does not reflect contemporary knowledge and should Inhibitors,research,lifescience,medical be corrected or replaced. Aim of the study The aim of the study was to answer the following questions: (i) Is there a satisfactory correlation between computer-processed (ie, algorithmic) ICD-10 diagnoses and clinician (“gold standard”) diagnoses of schizophrenia? (ii) Is there satisfactory correlation between computer-processed Histamine H2 receptor (ie, algorithmic) DSM-IV diagnoses and clinician (“gold standard”) diagnoses of schizophrenia? (iii) In which way does the degree of correlation affect the diagnostic validity of ICD-10 and DSM-IV schizophrenia? Hypothesis Assuming the expert clinician diagnosis (“holistic approach”) is valid, observation of a low correlation between clinician and algorithmic diagnoses reflects the low validity of the algorithmic diagnosis.

Operation techniques All operations were

Operation techniques All operations were performed by

the same surgical team, which included TZ, GZ, and ZL and all of whom had experience in minilaparotomy and laparoscopic approaches to rectal this website cancer. All patients underwent TME with preservation of the hypogastric nerves. Abdominoperineal resection (APR) was performed when the tumor infiltrated the anal canal or when it was impossible to obtain a distal margin of more than 1 cm. For low anterior resection (LAR), stapled end-to-end colorectal anastomoses were constructed. Inhibitors,research,lifescience,medical The rectal resection via minilaparotomy approach started with a midline skin incision from the pubis towards the umbilicus less than or Inhibitors,research,lifescience,medical equal to 7 cm long (12) (Figures 1,​,2).2). In case a laparoscopic operation was performed, a five-port technique was used as described previously (14). Both approaches adhered to the principles of total mesorectal excision. Procedures were carried out using the medial-to-lateral

approach. The root of the main mesenteric vascular pedicles was initially dissected with lymphadenectomy, and the mesentery and diseased segment of bowel were mobilized from the retroperitoneum. Figure 1 Low anterior resection with the minilaparotomy technique in a male patient with rectal cancer. Automatic abdominal retractor was locked into place by a supporting device Inhibitors,research,lifescience,medical to maintain an optimal view of the operating field. Surgical Incision Protective … Figure 2 The skin incision of minilaparotomy technique for the resection of rectal cancer. Patients undergoing LAR received a 5 cm incision for the removal of the specimen and placement of the stapler head.

For patients undergoing Inhibitors,research,lifescience,medical APR or coloanal anastomosis, Inhibitors,research,lifescience,medical specimens were removed through the perineum with no need for an abdominal incision. The protective colostomy was not performed in all patients. Splenic flexure mobilization was conducted when necessary in the laparoscopic approach, but was not performed in the minilaparotomy approach because of small incision. Conversion to open surgery was needed if the surgeon was unable to complete the laparoscopic resection. Levetiracetam Postoperative care Patients in both groups were managed by the same postoperative protocol, which included removal of the nasogastric tube at the end of the operation and oral liquids on postoperative day 1. Oral diet was resumed once there were passage of flatus and return of bowel function clinically. Pethidine 1 mg/kg was administered parenterally every 4 h on demand. The patients were discharged when they were fully ambulatory, were passing stools and flatus, could drink and eat solid foods and had no postoperative discomfort. After laparoscopy and open surgery, stage III patients received postoperative adjuvant chemotherapy with 5-fluorouracil and leucovorin for six months.

Figure 4 Extracellular levels of serotonin (5-HT) within the dor

Figure 4. Extracellular levels of serotonin (5-HT) within the dorsal raphe nucleus (DRN), as a percentage of baseline, before, during, and after inescapable shock (IS). Separate groups received either escapable shock (ES), yoked inescapable (IS), or home cage control … Fear conditioning and the amygdala To this point we have focused Inhibitors,research,lifescience,medical on the interaction between the mPFCv and

the DRN, with control leading to protection against the effects of aversive events by increasing mPFCv inhibition of the DRN. However, the mPFCv projects to other stressresponsive structures as well. The amygdala is of special interest in this regard. The amygdala is a key site in the mediation of fear and anxiety Its role in fear conditioning is well known, and fear conditioning has been argued to be a key process in the development of a number of anxiety disorders.34 The work of numerous Inhibitors,research,lifescience,medical investigators has suggested the following scenario (see ref 35 for a review). Inputs from neutral stimuli (the conditioned stimulus [CS], eg, a tone) and aversive

stimulation Inhibitors,research,lifescience,medical (the unconditioned stimulus [US], eg, a footshock) converge in the lateral amygdala (LA) where the association between the CS and US is formed by an AmethylDaspartate (NMDA)/longterm potentiation (LTP)-dependent process. Expression of conditioned fear involves CS transmission to the LA, connections from the LA to the central nucleus of the amygdala (CE) either directly or indirectly via the basal nucleus, and then output connections Inhibitors,research,lifescience,medical from the CE to regions of the brain that are the proximate mediators of the specific aspects of fear responses (autonomic, endocrine, and behavioral). This is an oversimplified scheme (eg, 36, 37), but it nevertheless Everolimus captures a large amount of data. In the present context, it is interesting to note that the mPFCv projects Inhibitors,research,lifescience,medical to the amygdala,38 and stimulation of the mPFCv has been reported to inhibit the increase in electrical activity in

the LA produced by an already conditioned fear stimulus, as well as the fear response to that stimulus, and to prevent the association between CS and US when they are paired.39 Similarly, Quirk et al40 found that mPFCv stimulation reduces Sclareol output from the CE in response to electrical stimulation of input pathways to the CE, and Milad et al41 found mPFCv stimulation to reduce fear responses produced by a fear CS. Although the exact projections of the mPFCv to the amygdala responsible for the inhibition of fear conditioning and fear responses resulting from mPFCv stimulation are unclear, the mPFCv does project to the intercalated cell mass (ITM) within the amygdala. These cells are almost all GABAergic, and project to the CE, providing an obvious pathway by which mPFCv activation could inhibit the CE.

In addition, we found a close association between

In addition, we found a close association between socioemotional overestimation and socioemotional concern, implying that—at least in the socioemotional domain—neural substrates of self-awareness are partly modality-specific. Finally, we showed that one’s socioemotional overestimation and

underestimation are likely based on different pathophysiological constructs, implying that future studies should examine impaired self-awareness with careful attention to the direction of error. Acknowledgments This research was supported in part by the National Selleckchem OTX015 Institute on Aging (NIA) (5-K23-AG021606 and 1R01AG029577 to K. P. R., PPG Inhibitors,research,lifescience,medical P01-AG1972403 and AG19724-01A1 to B. Inhibitors,research,lifescience,medical L. M.); the State of California, Alzheimer’s Disease Research Center of California (ARCC) (01-154-20); the National Institute on Health (NIH); the Larry L. Hillblom Foundation, Inc. (2002/2J to K. P. R.); and the University of California (UCSF) (GCRC-M01-RR00079). Conflict of Interest None declared. Funding Information This research was supported

in part by the National Institute on Aging (NIA) (5-K23-”type”:”entrez-nucleotide”,”attrs”:”text”:”AG021606″,”term_id”:”7679781″,”term_text”:”AG021606″AG021606 Inhibitors,research,lifescience,medical and 1R01AG029577 to K. P. R., PPG P01-AG1972403 and AG19724-01A1 to B. L. M.); the State of California, Alzheimer’s Disease Research Center of California (ARCC) (01-154-20); the National Institute on Health Inhibitors,research,lifescience,medical (NIH); the Larry L. Hillblom Foundation, Inc. (2002/2J to K. P. R.); and the University of California (UCSF) (GCRC-M01-RR00079). Supporting Information Additional Supporting Information may be found in the online version of this article: Data S1 Supplementary Material. Click here to view.(19K, docx) Figure S1 Scatterplot Inhibitors,research,lifescience,medical of the Main effects’ peak voxel’s gray matter (GM) volumes at the right inferior temporal gyrus (60/6/–34) and empathic

concern found discrepancy score, adjusting for age, gender, MMSE, and TIV, using STATA 9.2. Click here to view.(2.4M, tif)
NAC exerts survival-promoting effects in several cellular systems (Mayer and Noble 1994). Cysteine is transported mainly by the alanine-serine-cysteine (ASC) system, a ubiquitous system of Na+-dependent neutral amino acid transport in a variety of cells (Bannai and Tateishi 1986; Ishige et al. 2005). NAC, however, is a membrane-permeable cysteine precursor that does not require active transport and delivers cysteine to the cell in a unique way (Fig. 1) (Sen 1997). After free NAC enters a cell, it is rapidly hydrolyzed to release cysteine, a precursor of GSH.

75 Disability status was measured using the short form (12-item)

75. Disability status was measured using the short form (12-item) World Health Organization Disability Assessment Schedule-II (WHODAS-II

[Disability Assessment Schedule 2000]), which assesses the activity limitations and participation restrictions experienced by an individual. It does not ask respondents to identify whether the problem was caused by medical or mental health conditions. In consideration of the homebound state of the subjects, the last item, “Your day to day work,” was reworded to “Your day to day work in and around the house.” Need factors Depressive symptoms were measured with the 24-item HAMD. It consists of the GRID-HAMD-21 Inhibitors,research,lifescience,medical Structured Interview Guide (2003) augmented with three additional Inhibitors,research,lifescience,medical items assessing feelings of hopelessness, helplessness, and worthlessness, with specific probes and follow-up questions developed by Moberg et al. (2001). Antianxiety Ribociclib in vitro medication and pain medication data were collected from the original medication containers and/or the individual’s list of all medications being taken. Perceived effectiveness of antidepressants Those Inhibitors,research,lifescience,medical taking any antidepressant medication were asked to rate their perception of the effectiveness of each medication on a 5-point scale (1

= not effective; 2 = a little effective; 3 = somewhat effective; 4 = effective; 5 = very effective). Statistical Methods Following univariate analysis of the participants’ characteristics, including those of predisposing, enabling, and need factors, we described the subjects’ antidepressant use by medication class, type, duration of intake, and perceived effectiveness. Then, we used binary logistic regression

analysis to test the study hypotheses regarding self-reported antidepressant use versus nonuse. For the subset of participants who used antidepressants and provided data on perceived Inhibitors,research,lifescience,medical effectiveness (n = 65), we used ordinary least squares (OLS) regression analysis to test the exploratory Inhibitors,research,lifescience,medical hypothesis regarding the relationship between the perceived effectiveness and the predisposing factors and the HAMD scores. Bivariate analysis showed that the effectiveness perception was not significantly correlated with any enabling factor and other participant characteristics (e.g., pain frequency and intensity). Results Participant characteristics Table 1 shows that 56.2% of the participants were Black/African American or Hispanic and 69.8% had family income less than or equal to $15,000. The mean WHODAS-II score, 35.84 ± 9.03, indicates a high Tolmetin level of disability. The mean HAMD score was 23.56 ± 7.72, and 63.6% had MDD. Nearly half (48.8%) of the participants reported that they were taking at least one antidepressant medication. A majority (86.4%) reported that they were experiencing chronic pain, with the mean self-reported frequency of 8.66 ± 2.09 and the mean self-reported intensity of 7.69 ± 2.20 on a 10-point scale; 33.3% and 56% reported that they were taking antianxiety and prescription pain medications, respectively.

Dextran (Dex), sell

Dextran (Dex), polysialic acid (PSA), hyaluronic acid (HA), chitosan (CH), and heparin are the most used natural polysaccharides. Synthetic polymers

include polyvinyl pyrrolidone (PVP), polyvinyl alcohol (PVA), polyacrylamide (Pam), poly(ethylene glycol) (PEG), and PEG-based copolymers such as poloxamers, poloxamines, and polysorbates. 2.2.1. PEG Poly(ethylene glycol) (PEG) is the polymer of choice to produce stealth nanocarriers. This neutral, flexible, and hydrophilic material Inhibitors,research,lifescience,medical can in fact properly produce surface barrier layers that reduce the adhesion of opsonins present in the blood serum on the nanoparticles making them “invisible” to phagocytic cells. The protein repulsion operated by PEG was also visualized by freeze-fracture transmission

electron microscopy (TEM) [29]. A few physical protocols have been adopted to coat nanoparticle with PEG [22], even though these procedures entail the risk of polymer desorption in the blood with Inhibitors,research,lifescience,medical consequent loss of the beneficial contribution of the polymer [30]. In order to overcome this problem, covalent PEG conjugation protocols have been developed [31, 32]. Biodegradable nanoparticles with PEG covalently bound to the surface have been produced using PEG derivatives of poly(lactic Inhibitors,research,lifescience,medical acid), poly(lactic acid-co-glycolic acid) [33], or poly(alkylcyanoacrylates) [34]. The nanoparticles are prepared by emulsion, precipitation, or dispersion protocols in aqueous media. These procedures allow for the PEG orientation toward Inhibitors,research,lifescience,medical the water phase, while the biodegradable hydrophobic polymer fraction is physically entangled in the inner nanoparticle matrix [22]. Alternatively, PEG chains may be covalently conjugated to preformed nanoparticles through surface functional groups [35, 36]. 2.2.2. Poloxamine and Poloxamer Poloxamines (Tetronics) Inhibitors,research,lifescience,medical and poloxamers (Pluronics) are selleck chemicals llc amphiphilic block copolymers consisting of hydrophilic blocks of ethylene

oxide (EO) and hydrophobic blocks of propylene oxide (PO) monomer units. Urease Poloxamers are a-b-a type triblock copolymers (PEO-PPO-PEO) while poloxamines are tetrablock copolymers of PEO-PPO connected through ethylenediamine bridges [(PEO-PPO)2–N–CH2–CH2–N–(PPO-PEO)2] [37–39]. These polymers can be physically adsorbed on the nanocarrier surface through the hydrophobic PPO fraction [22]. Following intravenous injection to mice and rats, poloxamer- or poloxamine-coated sub-200nm poly(phosphazene) [40], PLGA nanoparticles [41], and liposomes [42, 43] did not show prolonged circulation time as compared to the uncoated counterparts. This unexpected behaviour was ascribed to the desorption of the polymers from the nanocarrier surface [30] as well as to the polymer capacity to adsorb opsonins [44].

Starting from a single-sided thoracoscopic procedure with a monop

Starting from a single-sided thoracoscopic procedure with a monopolar energy source on the beating heart, we were initially confronted with the surgical and technical limitations of the ablation devices and the procedure. A simultaneous endocardial approach seemed mandatory to understand the limitations of our minimally invasive approach. Initially setting up this collaboration with the electrophysiologist was challenging. Some

of the obstacles we had to overcome were: trying to understand our common goals, organizing the availability of the different multidisciplinary teams, criteria for selection of patients, deciding where Inhibitors,research,lifescience,medical the procedure should be performed, and the sequence Inhibitors,research,lifescience,medical of the procedure. Evaluation of our findings acutely and over time

has made necessary several changes to our approach and choice of ablation technologies and devices. This could only be achieved through a genuinely open-minded team approach that remained critical regarding the achieved success and also a willingness to take a retrospective view to compare this new approach to other more standard procedures. SINGLE-SESSION HYBRID PROCEDURE VERSUS PERCUTANEOUS CATHETER ABLATION The reported success rate of percutaneous catheter ablation Inhibitors,research,lifescience,medical of paroxysmal atrial fibrillation with a single procedure ranges from50% to 80%.These results are even lower for patients with persistentatrial fibrillation (30% to 50%). The differences in success rates could be explained by a variety of reasons, including the experience of the center, the ablation strategy, the technology, the follow-up criteria, and other variables. A major concern is the significant recurrence rate after

Inhibitors,research,lifescience,medical initial complete GDC 973 pulmonary vein electrical isolation, necessitating repeat interventions Inhibitors,research,lifescience,medical to achieve long-term cure of atrial fibrillation (even in high-volume centers). Recovered pulmonary vein conduction after initial acute circumferential pulmonary electrical isolation is the dominant rationale for recurrent atrial fibrillation and atrial tachyarrhythmias.15 The problem of durability of contiguous and transmural ablation lines in percutaneous transvenous endocardial procedures is related to multiple factors: the procedure is performed with the help of virtual imaging (fluoroscopy and three-dimensional mapping) Resminostat limiting actual anatomical accuracy; the permanent tissue effects of ablation will depend on adequate and stable catheter tip to tissue contact; and the actual necessary parameters of energy delivery are difficult to define in an environment of circulating blood. These issues can be addressed by epicardial application of a bipolar radiofrequency clamping device and should therefore result in more consistent antral lesions and isolation of the pulmonary veins. With an epicardial approach, direct anatomical visualization and stable device tip to tissue contact are obtained.

First, it is clear that both genetic and environmental etiologica

First, it is clear that both genetic and environmental etiological factors have biological consequences

early in development. For this reason, and because these consequences cannot be parsed out into their purely genetic and purely environmental components, we have reformulated MeehPs view that schizotaxia represents only the genetic predisposition to schizophrenia. In our view, schizotaxia results from a combination of both genetic and environmental etiologies. Because it may result from the effects of multiple genes and multiple environmental factors, it may be a heterogeneous condition, both clinically and etiologically. Second, the action of these etiological factors in early development Inhibitors,research,lifescience,medical suggests the likelihood that schizotaxia is a neurodevelopmental condition. Figure 1. reflects our view of schizotaxia as the liability for schizophrenia. Inhibitors,research,lifescience,medical The top of the figure illustrates our premise that schizotaxia results from a combination of genetic and adverse environmental events. Consistent with the view that schizotaxia is a neurodevelopmental disorder, it is likely to involve neurobiological abnormalities, as well as clinical and neuropsychological difficulties. The middle

of the figure reflects the premise that later environmental events (eg, adverse psychosocial events, substance abuse, head injury) interact with Inhibitors,research,lifescience,medical schizotaxia to produce prodromal symptoms, and then schizophrenia. These events stress the inability of vulnerable individuals to compensate – cither bchaviorally or neurobiologically – to additional Inhibitors,research,lifescience,medical challenges, sources of stress, or, possibly, to continued maldevelopment of prefrontal areas in the second and third decades of life. The bottom portion of the figure

shows that psychosis has “toxic” effects of its own, which result Inhibitors,research,lifescience,medical in chronic schizophrenia and, possibly, neurodegeneration. Note that in this model, psychosis is a condition that is distinct from the predisposition to schizophrenia. As noted above, schizotaxia would thus reflect a truer expression of schizophrenia genes than would schizotaxia plus psychosis (ie, schizophrenia). Figure 1. Model of the neurodevelopmental course of schizotaxia. See text Edoxaban for details. Reproduced from reference 42: Tsuang MT. Defining alternative phenotypes for genetic studies: what can we learn from studies of schizophrenia. Neuropsychiatrie Genet. 2000. In … Clinical features and treatment of schizotaxia In light of the etiological and neurodevelopmental framework discussed above, what does the schizotaxia phenotype look like? Comprehensive review of many schizotaxic features have already been published (see, for example, the issue of the Schizophrenia Bulletin Selleck INCB018424 edited by Moldin and Erlenmeyer-Kimling,43 and also reference 11).

2000) This approach is effective at stopping searching, but invo

2000). This approach is effective at stopping searching, but invokes additional neural processes related to contrast perception not necessarily utilized during the searching condition. Finally, in the context of surgical treatment planning, it is also of interest to minimize fast-changing and high-contrast images in

the task (e.g., flashing lights), as this may reduce the risk of seizure (Zifkin and Trenite 2000). The purpose of this work was to develop and Inhibitors,research,lifescience,medical evaluate a CVS that was capable of generating consistent activation in the basic and higher level visual areas of the brain by using a high number of distractors as well as an optimized contrast condition. We further sought an implementation that minimized overall image contrast between conditions. Finally, we aimed to fully evaluate the activation and deactivation properties of the Inhibitors,research,lifescience,medical task throughout the entire brain. We developed a CVS based on an array of 60 blue squares and 60 red circles (120 total distractors) in which the task was to identify whether or not the array contained a blue Inhibitors,research,lifescience,medical circle. We analyzed images of 10 healthy volunteers scanned using fMRI with the CVS task used for stimulus. After individual and group processing,

the resulting data sets were analyzed using a nonbiased ROI approach to determine the regions of greatest activation and deactivation. The activation properties of the new task are presented in terms of activation extent and mean z-statistic across three levels of anatomy. Materials and Methods Participants Images of 10 healthy, right-handed Inhibitors,research,lifescience,medical volunteers were used in this study. The local

Institutional Review Board approved the use of the images in this study. Task The CVS task used in this study was based on similar tasks described in the neuropsychological and cognitive science literature (Kristjansson et al. 2002; Shen and Reingold 2003; Muggleton et Inhibitors,research,lifescience,medical al. 2008; Saevarsson et al. 2008). The task was implemented in a block design paradigm consisting of two repetitions PD184352 (CI-1040) of an 8-sec rest stimulus followed by two repetitions of an 8-sec task stimulus. Each paradigm thus had 16 sec of rest followed by 16 sec of task for a total paradigm length of 32 sec. The paradigm was repeated 12 times for a total experimental time of 6 min 24 sec. An overview of the stimuli is shown in Figure ​Figure1.1. The rest stimulus (Condition 1) began with a 1-sec presentation of a single red X centered on the screen. A random array of hollow blue squares and hollow red circles was then presented. Subjects were instructed to immediately click their right index finger upon presentation of the array, causing it to be blurred so that the CCI-779 shapes could no longer be determined. The task stimulus began with a 1-sec presentation of a blue circle centered on the screen.

e , ERα and ERβ, both of which are receptors for oestradiol Rec

e., ERα and ERβ, both of which are receptors for oestradiol. Recent studies have

indicated that ERα expression is an unfavourable prognostic indicator in ESCC (33). The aim of this meta-analysis was to summarize these five molecular mechanisms of disease progression, which are related to prognosis. Methods Study protocol We followed the Preferred Reporting Inhibitors,research,lifescience,medical Items for Systematic reviews and Meta-Analyses PRISMA guidelines where possible in performing our systematic review (34). We performed a systematic search through MEDLINE (from 1950), PubMed (from 1946), EMBASE (from 1949), Current Contents Selleckchem Olaparib Connect (from 1998), Cochrane library, Google scholar, Science Direct, and Web of Science to May 2013. The search terms included “esophageal cancer”, “SOX2, OCT4, MET, IGF and oestrogen”, which

were searched as text word and as exploded medical subject headings where possible. No language restrictions were used in either the search or study selection. The reference lists of relevant articles were also searched for Inhibitors,research,lifescience,medical appropriate studies. A search for unpublished literature was not performed. Study selection We included studies that met the following inclusion criteria: Studies identifying the population of patients with Inhibitors,research,lifescience,medical esophageal cancer; Studies dealing with the association between SOX2, OCT4, MET, insulin like growth factor receptor and oestrogen with esophageal cancer. Data extraction We performed the data extraction using a standardized data

extraction form, collecting information on the publication year, study design, number of cases, total sample size, Inhibitors,research,lifescience,medical population type, country, continent, mean age and clinical data. The event rate and confidence intervals were calculated. Statistical analysis Pooled event rate and 95% confidence intervals were using a random effects model (35). We tested heterogeneity with Cochran’s Q statistic, with P<0.10 indicating heterogeneity, and quantified the degree of heterogeneity using the I2 statistic, which represents the Inhibitors,research,lifescience,medical percentage of the total variability across studies which is due to heterogeneity. I2 values of 25%, 50% and 75% corresponded to low, moderate and high degrees of Florfenicol heterogeneity respectively (36). The quantified publication bias using the Egger’s regression model (37), with the effect of bias assessed using the fail-safe number method. The fail-safe number was the number of studies that we would need to have missed for our observed result to be nullified to statistical non-significance at the P<0.05 level. Publication bias is generally regarded as a concern if the fail-safe number is less than 5n+10, with n being the number of studies included in the meta-analysis (38). All analyses were performed with Comprehensive Meta-analysis (version 2.0). Results The original search strategy 3,584 retrieved studies (Figure 1). The abstracts were reviewed and articles were selected for full-text evaluation.