Macrophysiological research is vital to our understanding of mechanisms underpinning global life history variation and adaptation to diverse environments. Here, we examined latitudinal and elevational variation in a key substrate of energy metabolism and an emerging physiological component of pace-of-life syndromes, blood glucose concentration. Our data, collected from 61 European temperate and 99 Afrotropical passerine species, revealed that baseline blood glucose increases with both latitude and elevation, whereas blood glucose stress response shows divergent directions, being stronger at low latitudes and high elevations. Low baseline glucose in tropical birds, compared to their temperate counterparts, was mainly explained by their low fecundity, consistent with the slow pace-of-life syndrome in the tropics. In contrast, elevational variation in this trait was decoupled from fecundity, implying a unique montane pace-of-life syndrome combining slow-paced life histories with fast-paced physiology. The observed patterns suggest that pace-of-life syndromes do not evolve along the single fast-slow axis.

Central MessageThickened mitral valve leaflets can made more pliable by the PED technique, enhancing the prospect of repair in these patients. Thickened mitral valve leaflets can made more pliable by the PED technique, enhancing the prospect of repair in these patients. The burden of mitral valve disease has doubled over the past 30 years, linked to the aging of society, with an estimated 12.6 million deaths in 2017.1Yadgir S. Johnson C.O. Aboyans V. Adebayo O.M. Adedoyin R.A. Afarideh M. et al.Global, regional, and national burden of calcific aortic valve and degenerative mitral valve diseases. 1990-2017.Circulation. 2020; 141: 1670-1680Crossref PubMed Scopus (155) Google Scholar Mitral repair remains the intervention of choice where possible, avoiding the need for anticoagulation therapy or prosthetic degeneration.2Baumgartner H. Falk V. Bax J.J. De Bonis M. Hamm C. Holm P.J. et al.2017 ESC/EACTS guidelines for the management of valvular heart disease.Eur Heart J. 2017; 38: 2739-2791Crossref PubMed Scopus (2) Google Scholar,3Otto C.M. Nishimura R.A. Bonow R.O. Carabello B.A. Erwin III, J.P. Gentile F. et al.2020 ACC/AHA guideline for the management of patients with valvular heart disease: executive summary: a report of the American College of Cardiology/American Heart Association Joint Committee on Clinical Practice guidelines.Circulation. 2021; 143: e35-e71PubMed Google Scholar Options for repair become limited in the presence of severe valvular thickening and subvalvular fibrosis due to technical challenges. Repair techniques have been described in patients with rheumatic heart disease to deal with thickened mitral valve leaflets,4Choudhary S.K. Talwar S. Dubey B. Chopra A. Saxena A. Kumar A.S. Mitral valve repair in a predominantly rheumatic population. Long-term results.Tex Heart Inst J. 2001; 28: 8-15PubMed Google Scholar, 5Kumar A.S. Rao P.N. Restoration of pliability to the mitral leaflets during reconstruction.J Heart Valve Dis. 1995; 4: 251-253PubMed Google Scholar, 6Chen S.-W. Cheng C.-Y. Wu V.C.-C. Chou A.-H. Cheng Y.-T. Chang S.-H. et al.Mitral valve repair versus replacement in patients with rheumatic heart disease.J Thorac Cardiovasc Surg. 2022; 164: 57-67.e11https://doi.org/10.1016/j.jtcvs.2020.07.117Abstract Full Text Full Text PDF PubMed Scopus (13) Google Scholar by either leaflet peeling or cusp thinning. This has not been described in detail in nonrheumatic mitral valve diseases. We have used the current technique in patients with myxomatous mitral valve disease, infective endocarditis, functional mitral regurgitation, and connective tissue disorders to reduce the thickness of the leaflets using a combination of peeling, endarterectomy, and decortication (PED). We illustrate this with a typical application in a patient with myxomatous mitral valve disease who had significant thickening of both leaflets with posterior leaflet prolapse. The mitral valve is exposed using standard techniques and analyzed using the saline test. This is accompanied by standard valve assessment techniques. The elements of the PED technique can be applied to mitral leaflets that appear fibrotic or thickened (Figure 1, A). This technique can be applied to 1 or both leaflets. If both leaflets appear thickened, the PED repair begins along the posterior leaflet. Typically, a square-ended forceps is used to gently develop the plane of fibrous layer near the annulus and at times from the posterior wall of the left atrium. This layer usually peels off from the entire leaflet surface up to the coaptation zone. The plane on the anterior leaflet is then developed using a No. 15 blade or using 2 sets of forceps, starting from the junction of the leaflet and the annulus. Gentle retraction is provided either through the free edge of the valve or the fibrous layer itself using a DeBakey forceps. Once the plane has been entered, elevation and freeing up of the fibrous rind may be aided by a Watson-Cheyne dissector, peeling from the annular border to the free edge of the leaflet (Figure 1, B). This is analogous to an endarterectomy. Once fibrous tissue has been dissected off the valve and is only attached at the free edge of the valve, it may be excised using a Metzenbaum scissors. Once PED is complete, the valve leaflets appear translucent (Figure 1, C) and the valve is tested in standard fashion. Repair of the posterior leaflet is performed as required, using a triangular resection and leaflet reconstruction. Annular repair is then undertaken using a flexible annuloplasty band or ring. Figure 2 shows intraoperative images of a typical PED repair that was as an adjunct to a posterior leaflet prolapse with a very thickened posterior leaflet. Adjunctive procedures such as leaflet resection and repair in this case, are easily combined with the PED repair. For purposes of reporting this case, tissue removal and assessment along with outcomes evaluation are approved through the Ethics Committee, protocol No: HREC/73660/Austin-2021, and also approved for multisite use at the University of Melbourne Hospitals. The patients provided informed written consent for the procedure and the publication of their study data. The PED technique provides a useful primary technique in a spectrum of mitral valve pathology where there is thickening of the mitral valve, including in patients with nonrheumatic heart disease. The current technique extends the option of repair to a spectrum of patients who would otherwise require valve replacement due to fibrous restriction of the leaflets. This technique is useful as an adjunctive procedure to other repair techniques, improving the quality of repair by facilitating increased mobility of the mitral valve leaflets. The underlying leaflets seem more pliable and have greater surface area for coaptation. This technique allows the removal of fibrous endocardium, analogous to endarterectomy of plaque filled arteries. The need for leaflet augmentation is virtually eliminated with the PED technique. Methods addressing thickened mitral valves are crucial for both rheumatic and nonrheumatic pathologies. In this setting, the PED technique likely represents an addition to the armamentarium of techniques available for valvular repair, avoiding the need for conversion to valve replacement, which could subject patients to complications of anticoagulation or bioprosthetic degeneration. A key component of this repair is to be able to get into the right plane or develop the plane between the fibrous rind and the underlying leaflet. Repair of leaflets can be undertaken if small perforations occur during the peeling process. However, we find it uncommon in our experience. This technique is not advised if there is calcification of the leaflets or calcified changes to the fibrous rind. However, as experience grows, mildly or partially calcified rinds can be removed safely. Our contention is that a fibrous rind is removed as in decortication of the lung. Intraoperative visual assessment of the adequacy of decortication are similar in both the lung and the mitral valve leaflets. However, long-term follow-up will inform us as to whether there is an influence on recurrence of fibrosis. Mitral valve repair has evolved from leaflet resection of varying grades to leaflet preservation, chordal transfer to neochords, rigid to semi-rigid and flexible rings, and edge-to-edge repairs to MitraClip (Abbott) implants, based on intraoperative evaluations. The PED repair is another arrow in the quiver of a mitral valve repair surgeon. This technique utilizes favorable outcomes seen in rheumatic valve repair where the leaflet tissues are able to withstand the long-term hemodynamic stresses after repair. Although our article focuses on the technique, we have deployed this in more than 135 patients since 2009 in multiple institutions in North America and Australia. A detailed publication focusing on clinical and echocardiographic follow-up is being compiled. We have described a new method for surgical repair using a PED combination technique, by illustrating its use in a patient with myxomatous mitral valve disease. This repair technique has not been well described in the literature to the best of our knowledge.

RESULTS: The CSIA is an international alliance consisting of representatives from major cardiothoracic surgical societies and the World Heart Federation. Activities have included meetings at annual conferences, exhibit hall participation for advertisement and recruitment and publication of selection criteria for cardiac surgery centres to apply for CSIA support. Criteria focused on local operating capacity, local championing, governmental and facility support, appropriate identification of a specific gap in care and desire to engage in future research. Eleven applications were received for which 3 finalist sites were selected and site visits conducted. The 2 selected sites were Hospital Central Maputo (Mozambique) and King Faisal Hospital Kigali (Rwanda).

The fatty acid composition of biological membranes has been hypothesised to be a key molecular adaptation associated with the evolution of metabolic rates, ageing, and life span – the basis of the membrane pacemaker hypothesis (MPH). MPH proposes that highly unsaturated membranes enhance cellular metabolic processes while being more prone to oxidative damage, thereby increasing the rates of metabolism and ageing. MPH could, therefore, provide a mechanistic explanation for trade-offs between longevity, fecundity, and metabolic rates, predicting that short-lived species with fast metabolic rates and higher fecundity would have greater levels of membrane unsaturation. However, previous comparative studies testing MPH provide mixed evidence regarding the direction of covariation between fatty acid unsaturation and life span or metabolic rate. Moreover, some empirical studies suggest that an n-3/n-6 PUFA ratio or the fatty acid chain length, rather than the overall unsaturation, could be the key traits coevolving with life span. In this study, we tested the coevolution of liver fatty acid composition with maximum life span, annual fecundity, and basal metabolic rate (BMR), using a recently published data set comprising liver fatty acid composition of 106 avian species. While statistically controlling for the confounding effects of body mass and phylogeny, we found no support for long life span evolving with low fatty acid unsaturation and only very weak support for fatty acid unsaturation acting as a pacemaker of BMR. Moreover, our analysis provided no evidence for the previously reported links between life span and n-3 PUFA/total PUFA or MUFA proportion. Our results rather suggest that long life span evolves with long-chain fatty acids irrespective of their degree of unsaturation as life span was positively associated with at least one long-chain fatty acid of each type (i.e., SFA, MUFA, n-6 PUFA, and n-3 PUFA). Importantly, maximum life span, annual fecundity, and BMR were associated with different fatty acids or fatty acid indices, indicating that longevity, fecundity, and BMR coevolve with different aspects of fatty acid composition. Therefore, in addition to posing significant challenges to MPH, our results imply that fatty acid composition does not pose an evolutionary constraint underpinning life-history trade-offs at the molecular level.

BACKGROUND:Rheumatic heart disease affects more than 33,000,000 individuals, mostly from low- and middle-income countries. The Cape Town Declaration on Access to Cardiac Surgery in the Developing World was published in August 2018, signaling the commitment of the global cardiac surgery and cardiology communities to improving care for rheumatic heart disease patients.METHODS:As the Cape Town Declaration formed the basis for which the Cardiac Surgery Intersociety Alliance was formed, the purpose of this article is to describe the history of the Cardiac Surgery Intersociety Alliance, its formation, ongoing activities, and future directions, including the announcement of selected pilot sites.RESULTS:The Cardiac Surgery Intersociety Alliance is an international alliance consisting of representatives from major cardiothoracic surgical societies and the World Heart Federation. Activities have included meetings at annual conferences, exhibit hall participation for advertisement and recruitment, and publication of selection criteria for cardiac surgery centers to apply for Cardiac Surgery Intersociety Alliance support. Criteria focused on local operating capacity, local championing, governmental and facility support, appropriate identification of a specific gap in care and desire to engage in future research. Eleven applications were received for which three finalist sites were selected and site visits conducted. The two selected sites were Hospital Central Maputo (Mozambique) and King Faisal Hospital Kigali (Rwanda).CONCLUSIONS:Substantial progress has been made since the passing of the Cape Town Declaration and the formation of the Cardiac Surgery Intersociety Alliance, but ongoing efforts with collaboration of all committed parties-cardiac surgery, cardiology, industry, and government-will be necessary to improve access to life-saving cardiac surgery for rheumatic heart disease patients.

A significant percentage of rheumatic heart disease (RHD) patients eventually require surgery, mainly in young patients, sometimes affecting children less than 10 years old. Those with severe functional valvular changes and dilated ventricles have progressive cardiac deterioration. Timely and appropriately performed surgery and perioperative care will be required. Indications and techniques for surgery of aortic, mitral, and tricuspid disease are discussed. Techniques of mitral valve repair have evolved significantly, and results are now much better; hence, comparison with replacement is favorable. With the exception of percutaneous treatment mitral stenosis, new technologies are, yet, not generally applicable in rheumatic disease. Further developments are expected. Cardiac surgery needs complex infrastructures and skills. In a significant number of low-middle income countries, especially in Africa, these facilities are not available and, where available, they are usually incapable to cope with the very large demand.

Seven different methods of artificial inoculation such as 1. Carborundum injury, 2. Pin prick injury 3. Sand paper injury, 4. Syringe inoculation on lower surface of leaf without needle, 5. Syringe inoculation of veins on lower surface of leaf with needle, 6. Tooth picks inoculation on collar region and 7. Pressurized spray inoculation were evaluated to find out the efficient and precise screening method for cotton bacterial blight caused by Xanthomonas citri pv. malvacearum under controlled conditions (plant growth chamber). Inoculated seedlings were incubated at 28°C, 90% RH and 3000 LUX light intensity during day time and 22°C, 90% RH and absence of light during night time for symptom development. Among them, pin prick injury recorded maximum PDI (64.25) in 20-24 days post inoculation followed by sand paper injury (56.50 PDI) in 23-27 days post inoculation on 20 day old LRA 5166 cotton seedlings compared to other methods. Both these methods developed all types of symptoms. Initial symptom of water soaked lesion was appeared in 7-8 days post inoculation in pin prick injury while it was 9-10 days in sand paper injury.

Dynamic tubular extensions from chloroplasts called stromules have recently been shown to connect with nuclei and function during innate immunity. We demonstrate that stromules extend along microtubules (MTs) and MT organization directly affects stromule dynamics since stabilization of MTs chemically or genetically increases stromule numbers and length. Although actin filaments (AFs) are not required for stromule extension, they provide anchor points for stromules. Interestingly, there is a strong correlation between the direction of stromules from chloroplasts and the direction of chloroplast movement. Stromule-directed chloroplast movement was observed in steady-state conditions without immune induction, suggesting it is a general function of stromules in epidermal cells. Our results show that MTs and AFs may facilitate perinuclear clustering of chloroplasts during an innate immune response. We propose a model in which stromules extend along MTs and connect to AF anchor points surrounding nuclei, facilitating stromule-directed movement of chloroplasts to nuclei during innate immunity.

Thirty-four Xanthomonas citri pv. malvacearum (Xcm) isolates collected from three cotton-growing zones of India were subjected for virulence and race documentation and further correlated with genetic diversity as revealed by repetitive elements [repetitive extragenic palindromic (REP), enterobacterial repetitive intergenic consensus (ERIC) and BOX elements] and intersimple sequence repeat (ISSR)-PCR analyses. Among the 34 isolates tested for virulence on susceptible cultivar LRA 5166, 7 were recorded as highly virulent (HV), 16 were moderately virulent (MV) and 11 were less virulent (LV). Eight different races were recorded by using ten cotton host differentials. Twenty-two isolates (65%) belonged to race 18. Twelve isolates (35%) pertained to races 3, 5, 6, 7, 8, 11 and 13. REP, ERIC, BOX, combined repetitive elements, and ISSR analyses revealed the presence of 7, 10, 9, 11, and 8 clusters, respectively, at similarity coefficient of 0.70 in dendrograms. Principal coordinate analysis (PCoA) exhibited 76.4% and 77.5% cumulative variability for combined repetitive elements and ISSR analyses. ERIC produced the highest polymorphic information content (PIC) value (0.928). A lot of intra-pathovar variability was observed in virulence and genomic fingerprinting among Xcm isolates. Many of the isolates grouped based on geographical origin irrespective of virulence or race. The spread of the pathogen races in India might be due to the transport of germplasm lines and seed materials from one place to others.

More than 6 billion people live outside industrialized countries and have insufficient access to cardiac surgery. Given the recently confirmed high prevailing mortality for rheumatic heart disease in many of these countries together with increasing numbers of patients needing interventions for lifestyle diseases due to an accelerating epidemiological transition, a significant need for cardiac surgery could be assumed. Yet, need estimates were largely based on extrapolated screening studies while true service levels remained unknown. A multi-author effort representing 16 high-, middle-, and low-income countries was undertaken to narrow the need assessment for cardiac surgery including rheumatic and lifestyle cardiac diseases as well as congenital heart disease on the basis of existing data deduction. Actual levels of cardiac surgery were determined in each of these countries on the basis of questionnaires, national databases, or annual reports of national societies. Need estimates range from 200 operations per million in low-income countries that are nonendemic for rheumatic heart disease to >1,000 operations per million in high-income countries representing the end of the epidemiological transition. Actually provided levels of cardiac surgery range from 0.5 per million in the assessed low- and lower-middle income countries (average 107 ± 113 per million; representing a population of 1.6 billion) to 500 in the upper-middle-income countries (average 270 ± 163 per million representing a population of 1.9 billion). By combining need estimates with the assessment of de facto provided levels of cardiac surgery, it emerged that a significant degree of underdelivery of often lifesaving open heart surgery does not only prevail in low-income countries but is also disturbingly high in middle-income countries.

The goal of this project is to performing assembly of mechanical joints based on tolerance. To obtain the proper functioning at the product the tolerance are important role. In this project the assembly of the component based on it tolerance. The required type of fit information gathered through form. This project is to reduce the time taken for assembly process while manual assembly, to improve the best assembly sequence. In this project to do the assembly of machine elements and its dimension with tolerance values are tabulated while reading the component through VB, and database to be created with the available components. Depends upon the user requirement or the application the appropriate components are identified and assembled in the modelling software. A mechanical assembly is a composition of interrelated parts. Assembly data base stores the geometric models of individual parts, the spatial positions and orientations of the parts in the assembly, and the relationships between parts. The manual assembly is a sophisticated tasks which consume time and requires skilled labour and cost. The work employs Visual Basic, SolidWorks and Excel to develop a database management system for standard components. The secondary development of SolidWorks has been performed by Visual Basic and the system is interconnected with SolidWorks. The outcomes were creating a application form to create a tolerance based assembly application which results in increase in speed of part assembly saving time and cost. KeywordSolidWorks, Visual Basic, Graphical User Interface, Ms-Excel database, Fits and Tolerances __________________________________________________________________________________________________

Inter-organellar communication is vital for successful innate immune responses that confer defense against pathogens. However, little is known about how chloroplasts, which are a major production site of prodefense molecules, communicate and coordinate with other organelles during defense. Here we show that chloroplasts send out dynamic tubular extensions called stromules during innate immunity or exogenous application of the pro-defense signals, hydrogen peroxide (H2O2) and salicylic acid. Interestingly, numerous stromules surround nuclei during defense response, and these connections correlate with an accumulation of chloroplast-localized NRIP1 defense protein and H2O2 in the nucleus. Furthermore, silencing and knockout of chloroplast unusual positioning 1 (CHUP1) that encodes a chloroplast outer envelope protein constitutively induces stromules in the absence of pathogen infection and enhances programmed cell death. These results support a model in which stromules aid in the amplification and/or transport of pro-defense signals into the nucleus and other subcellular compartments during immunity.

We have isolated three novel strains of Trichoderma (two T. harzianum and one T. atroviride) from wild mushroom and tree bark, and evaluated their biocontrol potential against Sclerotium delphinii infecting cultivated cotton seedlings. T. harzianum strain CICR-G, isolated as a natural mycoparasite on a tree-pathogenic Ganoderma sp. exhibited the highest disease suppression ability. This isolate was formulated into a talcum-based product and evaluated against the pathogen in non-sterile soil. This isolate conidiated profusely under conditions that are non-conducive for conidiation by three other Trichoderma species tested, thus having an added advantage from commercial perspective.

This volume is designed for anyone involved in the practice of cardiac surgery, from residents at all stages of their training programme to established cardiac surgeons. Cardiologists and cardiothoracic intensive care unit specialists will also find this book useful to better understand the management of patients undergoing these procedures. Features:Provides detailed coverage of all the new developments in the expanding specialty of cardiac surgeryDiscusses minimally invasive coronary artery bypass and mitral valve surgeryExamines treatment for tricuspid valve diseaseExplores cellular cardiomyoplasty / stem cell therapy and valve sparing aortic root replacementProvides the latest on endovascular stent grafting of the thoracic aorta and arrhythmia surgery

Introduction: Uric acid has been proven to be a negative prognostic indicator in patients with acute myocardial infarction and heart failure. There is a need to find a simple, less expensive but accurate marker that could be use in rural areas where fibrinolytic treatment is the first choice of acute reperfusion therapy. Materials and Methods: 80 patients presenting with acute myocardial infarction were included in the study and serum uric acid levels and Killip Class was assessed on Day 0,3 and 7. Results: Serum uric acid levels were raised in patients who presented with higher Killip Class on admission and all the 6 patients who succumbed belonged to either Killip Class 3 or 4 at presentation with a serum uric acid level of more than or equal to 7mg/dL. Conclusion: Serum uric levels are raised during an episode of myocardial infarction and more so when the patient is in heart failure. There is a positive correlation between rising serum uric acid levels with higher Killip Class at the time of admission. Thus uric acid can be used as a prognostic indicator in patients presenting with myocardial infarction more so if they are in heart failure.

Microorganisms have historically been studied as planktonic or free-swimming cells, but most exist as sessile communities attached to surfaces, in multicellular assemblies known as biofilms. In the process of coping with both the pathogenic and beneficial interactions, the rhizosphere of plant roots encourages formation of sessile communities that begins with the attachment of free-floating microorganisms to a surface. Certain bacteria such as plant growth promoting rhizobacteria not only induce plant growth but also protect plants from soil-borne pathogens in a process known as biocontrol. By contrast, other rhizobacteria in a biofilm matrix may cause pathogenesis in plants. Although research suggests that biofilm formation on plants is associated with biological control and pathogenic response, little is known about how plants regulate this association. The scope of this chapter is restricted to biofilm-forming bacteria and their interactions with terrestrial plants, specifically emphasizing recent work. After an overview of documented interactions between bacteria and plant tissues, we examine some of the more prominent mechanisms of biofilm formation on and around plant surfaces.