Indian J Med Res 141, March 2015, pp 373-375 Book Reviews decipherable even to the layman. Chapter 3 lays the foundation of a good diet focusing on the “eatwell plate” concept and how it can be used as a basis for the athletes’ diet. Besides the major nutrients, it also discusses the importance of hydration, breakfast and maintenance of a healthy weight. Nutrition for sport and exercise: A practical guide, H. Daries (Wiley - Blackwell, UK) 2012. 280 pages. Price: not mentioned. ISBN 978-1-4051-5354-6 With more and more interest being generated in good health, wellness and fitness, the attention to nutrition and its role in fitness is also gaining importance. In this context, a practical guide on nutrition for sports and fitness seems a very timely publication. It outlines the fundamental principles of nutrition in relation to sports and exercise and then applies these principles in practice through tools such as food and nutrient lists, recipes and menu options. The book is student friendly and presents scientific principles in an easy to read format. Chapters 4-6 describe in detail the role of the macronutrients - carbohydrates, proteins and fats in the athletes’ diet, and how and when these should be consumed. The appropriate tables in each chapter and recipes at the end further add to the clarity of the explanation. The additional appeal is the section on successful weight management in chapter 6. Vitamin and mineral requirements for athletes as well as non - athletes is dealt with comprehensively in the next chapter. Fluid and electrolyte balance is crucial for a good athletic performance. This issue is tackled in chapter 8. Practical hydration tips are also given. Chapter 9 deals with ergogenic aids. The author has very clearly outlined the common supplements and the scientific evidence regarding their usage. This practical guide has nine chapters. Each chapter is divided into separate sections, each dealing with a different concept. All chapters have a set of key words in the beginning, food and nutrients lists within and a chapter summary at the end. Recipes at the end of some of the chapters help to reinforce how to incorporate the nutrition principles described therein into the daily diets. In addition, the book has appendices dealing with reference values for estimated energy expenditure, glossary, student exercises, internet resources and references. The student exercises for each chapter reinforce the students’ understanding of the principles discussed in that chapter. Author and subject index provided at the end are useful. The book is a clear and lucid explanation of the basic principles of sports nutrition. However, it differs from a conventional textbook in its practical approach. The author, being a practicing dietitian, has been able to bring out an “easy to understand, easy to use and easy to adopt” manual. Her practical experience in this area is also reflected in the fact that there is no information overload. She has restricted the information given in each chapter to what is necessary to enhance knowledge and skills regarding planning and preparation of suitable diets for athletes. This aspect would be particularly appealing to students and practitioners of sports nutrition. However, it does not have any India – specific recommendations, which is a limitation to its usage among those studying the subject in India. The food lists and recipes are also based on western diets. The first introductory chapter deals with the importance of an adequate diet for an athlete and the barriers that prevent adoption of such a diet. Chapter 2 on the energy needs of an athlete deals with the fundamental principles of energy metabolism, effect of exercise on energy metabolism and methods to assess energy needs of an athlete. The methods suggested are supported by actual calculations to make them easily 373 374 INDIAN J MED RES, march 2015 Overall, this book will be of relevance to any reader interested in fitness and sports, but is certainly recommended to the students and faculty involved in the disciplines of fitness, nutrition and sports sciences. Seema Puri Department of Food & Nutrition Institute of Home Economics (University of Delhi) New Delhi 110 016, India [email protected] Phosphate and vitamin D in chronic kidney disease, M. S. Razzaque, editor (Karger, Basel, Switzerland) 2013. 154 pages. Price: US $ 233.00/CHF 198.00/EUR 165.00 ISBN 978-3-318-02369-5 This book describes in a comprehensive manner the metabolism of phosphate and vitamin D in patients with chronic kidney disease (CKD). It is an excellent compendium about recent development in the regulation of urinary phosphate excretion and the role of hyperphosphataemia in the development of ectopic calcification (vascular), cardiovascular diseases and secondary hyperparathyroidism in patients with CKD. The role of bone derived FGF23 and kidney derived klotho on vitamin D metabolism and Na/Pi cotransporters activities is well discussed in appropriate sections of the book. Chapter 1, “Osteo – Renal – Cross-Talk and Phosphate Metabolism by the FGF23 – Klotho – System”, introduces the significance of maintaining an adequate phosphate balance for sustenance of essential cellular and organ functions in human body with calcium regulatory factors (PTH and vitamin D) that control the phosphate metabolism. The authors introduce the prime highlight of this book, fibroblast growth factor (FGF23) – klotho system. This calcium independent factor plays an active role in the regulation of phosphate metabolism as well, with both bone derived FGF23 and kidney derived klotho system having a negative effect on vitamin D metabolism and Na/Pi cotransporter activities. The interaction of FGF23 and klotho through an unknown mechanism can suppress the activity of renal Na/Pi cotransporter system and thus increases urinary phosphate excretion. However, in the absence of klotho, FGF23 loses its phosphaturic effect. Chapter 2 discusses the signalling propensity of extracellular phosphate. Phosphate is critical in various biological processes including membrane integrity, synthesis of deoxyribonucleic acid (DNA) and ribonucleic acid (RNA), enzyme metabolism and intracellular signalling. Chapter 3 describes the functional diversity of alpha-klotho, which regulates mineral homeostasis of phosphate and calcium ions. Thus it is a new member of mineral regulating factors besides vitamin D and parathyroid hormone (PTH). The complexity of its regulation have also been well discussed in this chapter. The relationship between chronic kidney disease (CKD) and klotho has been discussed in chapter 4. CKD is a state of endocrine and renal klotho deficiency which may contribute to CKD progression and complications of CKD including vascular calcification, cardiac hypertrophy and secondary hyperparathroydism. Klotho suppresses 1, α-hydroxylase in the kidney to regulate calcium metabolism. It appears that klotho protein administration may have potential therapeutic value in patients with CKD in future. Chapter 5 discusses the role of nuclear receptors, specifically the liver X receptor (LXR) in CKD and its relationship with the Na/pi cotransporters. LXR agonists are one of the recent pharmaceutical approaches for disturbed phosphate homeostasis in CKD. The molecular mechanism of vascular calcification and various inducers and inhibitors of vascular calcification are described in chapter 6 entitled “Phosphate Toxicity and Vascular Mineralization”. Lowering serum phosphate is associated with suppression of vascular calcification in patients with CKD despite high levels of serum calcium and 1, 25 (OH)2 vitamin D. It means lowering serum phosphate concentration in CKD patients may minimize the risk of vascular calcification. Chapters 7 and 8 entitled “Vitamin D and Type II Sodium–Dependent Phosphate Cotransporters” and “Vitamin D in Chronic Kidney Disease” describe the recent knowledge on the role of vitamin D in phosphate cotransporter and how vitamin D deficiency in CKD patients is involved in various clinical manifestations. Chapter 9 entitled “Parathyroid Function in Chronic Kidney Disease: Role of FGF23 – Klotho Axis” describes recent observations regarding the role of FGF23/klotho system in the genesis of secondary hyperparathyroidism, and finally chapter 10 discusses the approach of using salivary phosphate levels as a biomarker for obesity. Overall, this is a comprehensive book describing the various aspects of recent advances and molecular basis Book Reviews of the mechanism of secondary hyperparathyroidism, vascular calcification, and cardiac hypertrophy in patients with CKD with special reference to the role of phosphate, vitamin D and klotho protein in these patients. All chapters are written in a lucid and clinically relevant manner. This book will be helpful for physicians, nephrologists, biochemists, physiologists and researchers working in the respective fields of experimental chronic kidney diseases. Jai Prakash Department of Nephrology Institute of Medical Sciences Banaras Hindu University Varanasi 221 005, Uttar Pradesh, India [email protected] Human papillomavirus - Bench to bedside, M. K. Ramírez-Fort, F. Khan, P. L. Rady, S. K. Tyring, editors (Karger, Basel, Switzerland) 2014. 271 pages, Price: US $ 258.00/CHF 219.00/EUR 183.00 ISBN 978-3-318-02526-2 Ever since the discovery of a connection between human papillomavirus (HPV) and skin cancer, the research on this double stranded DNA virus has unfolded many truths about its ability to infect human cells. The virus is responsible for benign, premalignant and malignant lesions of ano-genital region, oro-pharynx and skin. This book aptly highlights the relationship between HPV and the pathological conditions and gives an outline on how to handle the clinical manifestations caused by this virus. The management of HPV-related diseases often requires a multimodal approach. This book is an excellent source of up – to – date information on human papillomavirus and its various clinical presentations and also the state of the art molecular genomics of the virus. The initial chapters discuss the structure, types and variants and natural history of the virus and elucidate the mechanism of carcinogenesis in human epithelial cells by the virus. Of particular interest is the chapter on host immune response to the virus and the unique features of the virus that allow it to evade the host immunity. Detailed information on the diagnostic techniques and treatment available feasibility for various cutaneous benign manifestations of the virus and the HPV induced malignancies has been provided. The book unfolds the various treatment options available in correct approach and also gives an outline of the preventive approach 375 towards the virus by the development of vaccine against it. The “difficult to treat” clinical scenarios, especially in immune compromised patients which include transplant recipients as well as HIV – infected individuals have been highlighted which guide us in the best possible approach for the treatment including destructive as well as reconstructive surgeries. The 19 chapters of the book follow a logical approach from introducing the virus and its present status in taxonomy, to the management of extreme form of this infection i.e. invasive cancer of various parts of the human body in a detailed fashion. It covers both basic sciences and clinical challenges faced in day – to – day practise in a very lucid language, and provides a thorough understanding of how and when to select the best treatment for the widespread disease manifestations caused by this DNA virus. It is well referenced and contains an easy to comprehend index at the end covering all the key words used in the book. However, some of the chapters are quite repetitive and have included similar information, Tables (Table 1 of chapter 1 and Table 1 of chapter 4) and pictures (Figure 1 of chapter 1 and Figure 1 of chapter 4). The chapter on HPV vaccination lacks pertinent information like the safety and effectiveness of the prophylactic vaccines and the recommendations for their use. Now that the vaccines are available and are included in the immunization programmes of more than 50 countries more elaborate information would have benefitted the practitioners. Overall, this book is well illustrated and presented in a simple language, well supported by plenty of Figures and Tables. It describes recent advances in the field of dermatology and clinical practice and highlights the usefulness of dermoscopy in diagnosis of HPV related diseases. Many eminent physicians of international repute have come together and shared their practical experience even with the description of real cases they handled in their day- to- day practice. This is a an updated source of information for all levels of physicians who come across various cases of HPV infection in their daily practice and may find it useful in management of HPV related diseases. This book will be of use not only to the clinicians but also to the molecular biologists and virologists. Dipanwita Banerjee & Partha Basu Department of Gynecological Oncology Chittaranjan National Cancer Institute Kolkata 700 026, West Bengal, India [email protected]
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