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1.
Funct Integr Genomics ; 23(1): 47, 2023 Jan 24.
Artigo em Inglês | MEDLINE | ID: mdl-36692535

RESUMO

Climate change seriously impacts global agriculture, with rising temperatures directly affecting the yield. Vegetables are an essential part of daily human consumption and thus have importance among all agricultural crops. The human population is increasing daily, so there is a need for alternative ways which can be helpful in maximizing the harvestable yield of vegetables. The increase in temperature directly affects the plants' biochemical and molecular processes; having a significant impact on quality and yield. Breeding for climate-resilient crops with good yields takes a long time and lots of breeding efforts. However, with the advent of new omics technologies, such as genomics, transcriptomics, proteomics, and metabolomics, the efficiency and efficacy of unearthing information on pathways associated with high-temperature stress resilience has improved in many of the vegetable crops. Besides omics, the use of genomics-assisted breeding and new breeding approaches such as gene editing and speed breeding allow creation of modern vegetable cultivars that are more resilient to high temperatures. Collectively, these approaches will shorten the time to create and release novel vegetable varieties to meet growing demands for productivity and quality. This review discusses the effects of heat stress on vegetables and highlights recent research with a focus on how omics and genome editing can produce temperature-resilient vegetables more efficiently and faster.


Assuntos
Melhoramento Vegetal , Verduras , Humanos , Verduras/genética , Produtos Agrícolas/genética , Genômica , Proteômica
2.
Gerontology ; 60(4): 294-305, 2014.
Artigo em Inglês | MEDLINE | ID: mdl-24731978

RESUMO

By the year 2050, individuals over the age of 65 years will comprise 20% of the US population. Loss of muscle mass and strength is common in this age group and it is associated with increased dependence, frailty and mortality. Sarcopenia, defined as the loss of muscle mass and function associated with aging, and cachexia, defined as weight loss due to an underlying illness, are muscle wasting disorders of particular relevance in the aging population, but they go largely unrecognized. In this review we highlight the common pathophysiological mechanisms underlying muscle loss in sarcopenia and cachexia, the factors unique to each condition and means of diagnosing and differentiating them clinically. Therapeutic options including exercise, nutritional therapy, androgens and growth hormone as well as their practical limitations are discussed. We also shed light on newer agents being developed as potential therapeutic options for wasting diseases.


Assuntos
Envelhecimento/patologia , Envelhecimento/fisiologia , Caquexia , Sarcopenia , Idoso , Androgênios/fisiologia , Estimulantes do Apetite/uso terapêutico , Caquexia/diagnóstico , Caquexia/etiologia , Caquexia/terapia , Proteínas Alimentares/administração & dosagem , Terapia por Exercício , Grelina/uso terapêutico , Hormônio do Crescimento Humano/uso terapêutico , Humanos , Proteínas Musculares/metabolismo , Músculo Esquelético/patologia , Músculo Esquelético/fisiopatologia , Receptores Androgênicos/fisiologia , Sarcopenia/diagnóstico , Sarcopenia/etiologia , Sarcopenia/terapia
3.
J Cancer Res Ther ; 14(6): 1439-1441, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-30488873

RESUMO

We hereby present two rare cases of primary malignant melanoma of vagina in women aged 65 and 50 years, respectively. At the time of presentation, the disease in both cases was locally advanced and subsequently metastasized to distant organs.


Assuntos
Melanoma/patologia , Vagina/patologia , Neoplasias Vaginais/patologia , Idoso , Feminino , Humanos , Pessoa de Meia-Idade , Pós-Menopausa/fisiologia
4.
Curr Opin Support Palliat Care ; 7(4): 368-75, 2013 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-24145681

RESUMO

PURPOSE OF REVIEW: Cachexia is a devastating complication of cancer for which there is no approved treatment. Here we review the clinical development of ghrelin and ghrelin mimetics (also known as growth hormone secretagogues or GHS) for cancer cachexia treatment. RECENT FINDINGS: Ghrelin, a novel hormone known to increase appetite, lean and fat mass, and growth hormone secretion, is being developed as a therapeutic option for cancer anorexia-cachexia syndrome (CACS). Recent animal studies suggest that it may also decrease inflammation and that some of its effects may be independent of its only known receptor, the GHS receptor-1a.Clinical studies recently have shown that administration of ghrelin or GHS improves appetite and quality of life as assessed by questionnaires. Weight gain, increased food intake and better tolerance to chemotherapy have also been reported. This treatment appears to be safe and well tolerated. SUMMARY: Ghrelin and GHS have the potential to effectively prevent or reverse CACS. Preliminary studies show improvements in weight stabilization and appetite with short-term usage. Further studies are required to fully characterize the role of ghrelin and GHS for the treatment of CACS and to establish the safety of this approach.


Assuntos
Caquexia/tratamento farmacológico , Grelina/uso terapêutico , Hormônio do Crescimento/metabolismo , Neoplasias/complicações , Receptores de Grelina/fisiologia , Animais , Apetite/efeitos dos fármacos , Caquexia/etiologia , Caquexia/prevenção & controle , Ensaios Clínicos Fase III como Assunto , Modelos Animais de Doenças , Grelina/farmacologia , Humanos , Músculo Esquelético/efeitos dos fármacos , Neoplasias/tratamento farmacológico , Qualidade de Vida , Aumento de Peso/efeitos dos fármacos
5.
Artif Organs ; 29(11): 899-905, 2005 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-16266304

RESUMO

This study was conducted to get an insight into the knowledge, attitude, and practices of the people of Pakistan regarding organ donation (OD), and to understand the various factors that influence these. Systematic sampling was used to generate a sample size of 357. Data collection was carried out via a questionnaire in the outpatient units of our hospital. All kinds of medical and surgical patients were interviewed. Knowledge of ODs that occur in Pakistan and the rest of the world was found to be 65.5 and 72.8%, respectively. The percentage of those willing to donate their organ/s was 59.9%. Knowledge of OD was significantly associated with education and socioeconomic status. Willingness to donate had a significant association with gender. It also had a moderate association with education and socioeconomic status. Awareness of OD and the knowledge that OD can save lives was also significantly associated with the willingness to donate.


Assuntos
Atitude Frente a Saúde , Doadores Vivos/estatística & dados numéricos , Pacientes Ambulatoriais/estatística & dados numéricos , Opinião Pública , Obtenção de Tecidos e Órgãos/estatística & dados numéricos , Adulto , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Paquistão/epidemiologia , Inquéritos e Questionários
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