Transcriptome and carotenoid profiling of different varieties of Coffea arabica provides insights into fruit color formation

The processability and ultimate quality of coffee(Coffea arabica)are determined by the composition of the matured fruits.The basis of genetic variation in coffee fruit quality could be explained by studying color formation during fruit maturation.Transcriptome profiling was conducted on matured fruits of four C.arabica varieties(orange colored fruits(ORF);purple colored fruits(PF);red colored fruits(RF)and yellow colored fruits(YF))to identify key color-regulating genes,biosynthesis pathways and transcription factors implicated in fruit color formation.A total of 39,938 genes were identified in the transcriptomes of the four C.arabica varieties.In all,2745,781 and 1224 differentially expressed genes(DEGs)were detected in YF_vs_PF,YF_vs_RF and YF_vs_ORF,respectively,with 1732 DEGs conserved among the three pairwise groups.Functional annotation of the DEGs led to the detection of 28 and 82 key genes involved in the biosynthesis of carotenoids and anthocyanins,respectively.Key transcription factors bHLH,MYB,NAC,MADS,and WRKY implicated in fruit color regulation were detected.The high expression levels of gene-LOC113688784(PSY),gene-LOC113730013(b-CHY),gene-LOC113728842(CCD7),gene-LOC113689681(NCED)and gene-LOC113729473(ABA2)in YF may have accounted for the yellow coloration.The differential expression of several anthocyanin and carotenoid-specific genes in the fruits substantially account for the purple(PF),red(RF),and orange(ORF)colorations.This study provides important insights into fruit color formation and variations in C.arabica and will help to develop coffee varieties with specific color and quality traits.

Establishment of a risk assessment system for complications of hepatectomy based on preoperative variables

Background and aims:To reduce the incidence of postoperative complications,it is important to predict them and intervene before surgery if necessary.However,there is no ideal system to evaluate the overall risk of post-operative complications of liver surgery on the basis of preoperative variables.Therefore,this study aimed to design and validate a risk assessment system to predict postoperative complications of hepatectomy on the basis of preoperative variables.Methods:Binomial logistic regression was used to derive the“hepatectomy overall risk formula”(HORF)for predicting postoperative complications on the basis of preoperative variables.Results:Multivariate analysis revealed that Child–Pugh grade B–C(odds ratio[OR]=1.984,p=0.002),medical diseases requiring drug treatment(OR=1.883,p=0.003),major hepatectomy(OR=1.947,p<0.001),adjacent organ invasion(OR¼3.616,p¼0.023),and preoperative hospital stay>7 days(OR=1.565,p=0.004)were independent risk factors for postoperative complications of hepatectomy.The area under the curve for the HORF was 0.736.The optimal cut-off value for predicting complications was 0.32(32%).The area under the curve for the HORF in the validation dataset was 0.727.Conclusion:The HORF can accurately predict postoperative complications of hepatectomy on the basis of pre-operative variables,and thus enables the determination of the necessity for intervention before surgery.

Anxiety and depression in older adult patients undergoing elective liver surgery in allopatry medical treatment

Background:Allopatry medical treatment is common in China.However,allopatry medical therapy can result in many problems,including a negative psychological impact on patients.Patients undergoing liver surgery often experience anxiety and depression.To understand the psychological status of older adult patients undergoing surgery better,this study was designed to investigate the incidence of anxiety and depression in older adult patients undergoing elective liver surgery and to analyze factors associated with it in allopatry medical therapy.Methods:A total of 173 older adult patients undergoing elective liver surgery were included in the study.Patients were evaluated using the hospital anxiety and depression scale(HADS).The contributing factors affecting the psychological state of older adult patients undergoing elective surgery were analyzed using a linear regression method.Results:The HADS-A(hospital anxiety and depression scale-anxiety).The correlation(scale)score of the older adult patients undergoing elective liver surgery was(8.69
2.38),including 53 asymptomatic patients,86 suspicious patients,and 34 symptomatic patients.The HADS-D(hospital anxiety and depression scale-depression)score was(8.31
2.90),including 83 asymptomatic patients,56 suspicious patients,and 34 symptomatic patients.Multivariate analysis showed that residence and complication grade(Clavien–Dindo Classification of Surgical Complications or Accordion Severity Grading System)significantly correlated with the anxiety level of patients undergoing elective surgery.Residence,a requirement of blood transfusion,total transfusion volume,and Accordion complication grade showed a significant correlation with depression in patients undergoing elective surgery.Conclusions:Anxiety and depression in older adult patients undergoing elective liver surgery were common.Regional differences(local patients vs non local patients)and the severity of complications were the risk factors for anxiety and depression in older adult patients undergoing elective liver surgery.Reducing both regional differences and the severity of complications would be beneficial to alleviate the risk of anxiety and depression in older adult patients undergoing elective liver surgery and thus promote their physical and mental health.

Damage and Control Suggestions for the Emerging Disease Coffee Root Rot

[Objectives]The paper was to elucidate the symptoms,morphological characteristics,etiological factors,and current extent of damage associated with coffee root rot disease.[Methods]The symptoms,morphological characteristics,and etiological factors associated with coffee root rot disease were systematically observed,described,and analyzed.The assessment of damage was carried out using a specialized investigative methodology.[Results]The application of bottom fertilizer containing Fusarium incarnatum facilitated the pathogen's entry through root wounds during transplantation,resulting in the development of water-soaked depression lesions in the affected areas.This infection significantly reduced the number of lateral roots in coffee plants,leading to symptoms such as wilting,withering,and ultimately,the death of the aboveground foliage.F.incarnatum exhibited three distinct types of spore morphology:macroconidia,which were sickle-shaped;mesoconidia,which were spindle-shaped;and microconidia,which were oval-shaped.The incidence rate of the disease in the affected region reached 100%,with a disease index exceeding 91,indicating severe damage.[Conclusions]This study serves as a valuable reference for the prevention and management of the emerging disease known as coffee root rot.