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Gluten ve Gluten Metabolizması Bozukluğuna Bağlı Oluşan Hastalıklar Full text
2024
Aybüke İmik | Ceren Gezer
İnsanların beslenmesinde gluten içeren besinler önemli yer tutmaktadır. Gluten metabolizması bozukluğuna bağlı oluşan hastalıklar bulunmakta olup bunlar çölyak hastalığı, buğdaya karşı IgE aracılı alerji ve çölyak dışı gluten duyarlılığı olarak sınıflandırılabilir. Bireylerin gluten duyarlılıkları arasında farklılıklar olup gluten duyarlılığı olan bireylerin gluten içeren besinleri tüketmeleri durumunda en başta bağırsak dokusu olmak üzere birçok dokuda histopatolojik yapılarında ve otoimmun sistemlerinde önemli değişiklikler meydana gelebilir. Dokuların histopatolojik yapısındaki değişiklikler dokulara göre değişmektedir. Otoimmun sistemdeki değişiklikler ise Transglutaminaz, Gliadin, IgA, IgG, CD4 ve CD8 gibi parametrelerden en az birinin veya birkaçının incelenmesi ile tespit edilebilir. Gluten metabolizması bozukluğuna bağlı oluşan hastalıklarda etkili tedavi şekli glutensiz/gluten kısıtlı diyet olmakla birlikte bağışıklık sisteminde rol alan mekanizma ve moleküllerin saptanması yeni tedavi yöntemlerini oluşturulmasına yol gösterebilir. Bu çalışmada amaç gluten ve gluten metabolizması bozukluğuna bağlı oluşan hastalıklar arasındaki ilişkinin derlemesidir.
Show more [+] Less [-]Köpeklerden Toplanan Rhipicephalus sanguineus Türü Kenelerden Coxiella brunetii’nin PCR ile Tespiti ve Moleküler Karakterizasyonu Full text
2024
Ali Bilgin Yılmaz | Adnan Ayan | Ezgi Şababoğlu | Yaşar Göz | Burçak Aslan Çelik | Özgür Çelik | Özge Oktay Ayan
Zorunlu hücre içi bakteri olan Coxiella burnetii, insanlar da dahil olmak üzere omurgalıların zoonotik bir hastalığı olan Q ateşinin etkenidir. Yaygın enfeksiyon yolları kontamine ahır tozunu solumak ve enfekte hayvanların atıklarıyla temastır. Bu çalışmanın materyalini Haziran-Eylül 2019 tarihleri arasında Türkiye’nin doğusundaki Van ilinde bulunan 70 sokak köpeğinden toplanan 200 adet kene oluşturmuştur. Toplanan keneler %70’lik alkol içeren tüplere alınarak parazitoloji laboratuvarına nakledilmiştir. hangi etiketlerin yapıştırıldığı. Keneler tüplere yerleştirildi ve sıvı nitrojen ile dondurularak ezildi. DNA, kit üreticisinin protokolüne göre izole edildi. Coxiella burnetii’nin DNA’sını tespit etmek için IS1111 tekrarlayan transpozaz gen bölgesine özel bir Trans 1, Trans 2 primer çifti kullanıldı. Saflaştırılmış amplikonların çift yönlü dizi analizi, DNA dizileyici ile gerçekleştirildi. IS1111 transpozaz genini hedef alan PCR sonucunda 200 kenenin 2’sinde (%1) Coxiella burnetii pozitif sonuç elde edildi. Van ilinde serbest dolaşan köpeklerde Q ateşi epidemiyolojisinde potansiyel risk faktörleri ve kenelerin önemi, parazit kene türleri ve köpeklerde C. burnetii pozitif kenelerin prevalansı belirlenerek vurgulanmıştır.
Show more [+] Less [-]Çevre Kirliliği Açısından Traktör Egzoz Emisyon Test Yöntemlerinin Önemi Full text
2024
Mehmet Recai Durgut
Birçok Avrupa ülkesinde hava kirliliği dolayısıyla çevrenin korunması önemli konuların başında gelmektedir. İsviçre’de yapılan araştırmalar, karayolu dışı taşıt trafiğinin hava kirliliğinin önemli bir bölümünün nedeni olduğunu göstermiştir. Tarım traktörleri de karayolu dışı taşıt trafiğinin önemli bir bölümünü oluşturmaktadır. Gelişmiş ve gelişmekte olan ülkelerde traktör sayılarında hızlı bir artış görülmektedir. Traktör sayılarının bu artışı nedeniyle traktör egzoz emisyonları ve bunların çevreye olan etkileri üzerinde büyüyen bir ilgi vardır. Doğru emisyon değerlerinin belirlenmesi ve kullanılan ölçüm metotları önem kazanmıştır. Traktör motorlarının tip onayı için bir motor test donanımında emisyon ölçümlerine yönelik düzenlemeler mevcuttur, ancak traktörün farklı çalışma koşullarında emisyon ölçümleri için bir prosedür mevcut değildir. Yapılan çalışmalar traktörlerin farklı çalışma koşullarında ölçülen egzoz gazlarının, emisyon test yöntemlerindeki sabit durum koşullarında elde edilen değerlerden daha yüksek olduğunu göstermiştir. Bu sonuçlar, emisyon ölçümünde kullanılan test prosedürlerinin değiştirilmesinin gerekliliğini ortaya çıkarmaktadır. Yeni testlerin geliştirilmesi, traktörlerden kaynaklanan egzoz emisyonlarını azaltacaktır.
Show more [+] Less [-]A Comprehensive Study on the Agronomic and Technological Responses of Different Chamomile (Matricaria recutita L.) Varieties at Diverse Sowing Times Full text
2024
Uğur Tan | Olcay Arabacı
In this study, it was aimed to determine the effects of different sowing times and different varieties of German chamomilla (Matricaria recutita L.) on agronomic and technological characteristics. The study was conducted in experimental fields of the Department of Field Crops, Faculty of Agriculture in Adnan Menderes University. Two different tetraploid Matricaria recutita L. (Bodegold and Zloty Lan) cultivars were used for this study. Zloty Lan was provided by Germany and Bodegold was provided from Atatürk Central Horticultural Research Institute. The trial was conducted according to a split plot experimental design with 4 block. Factors consist of 5 sowing times as main plots (1 October, 15 October, 1 November, 15 November, 1 December) and 2 genotypes as subplots (Bodegold and Zloty Lan). The effect of sowing times and genotypes was found statistically significant on fresh flower yield. The highest flower yield was found 61.61 kg da-1 . The average values for plant height ranged from 45.43 to 55.20 cm, flower diameter ranged from 25.24 to 27.53 mm, biomass ranged from 130 to 332.3 kg da-1, fresh flower yield ranged from 19.74 to 61.61 kg da-1 , drug herb ranged from 35.5 to 73.5 kg da-1 , drug flower ranged from 7.4 to 13.3 kg da-1 , essential oil content ranged from 0.025% to 0.083% and essential oil yield ranged from 0.020 to 0.090 l da-1. The primary constituents of essential oil have been discovered as bisabolol oxide a and bisabolene oxide.
Show more [+] Less [-]Energy Balance and Greenhouse Gas (GHG) Emissions of Sesame (Sesamum indicum L.) Production in Türkiye Full text
2024
Osman Özbek | Sadiye Ayşe Çelik | İrem Ayran Çolak | Osman Gökdoğan
The objective of this study was to determine the energy use and greenhouse gas emissions associated with sesame production. Energy use efficiency indicators and greenhouse gas emission rates were calculated for the 2022-2023 production season. The energy input and output for sesame production were found to be 12079.15 MJ ha-1 and 30052.44 MJ ha-1, respectively. The study found an energy use efficiency of 2.49, with a specific energy of 12.20 MJ kg-1, an energy productivity of 0.08 kg MJ-1, and a net energy value of 17973.29 MJ ha-1. The direct and indirect energy inputs were calculated to be 4584.41 MJ ha-1 (37.95%) and 7494.74 MJ ha-1 (62.05%), while the renewable and non-renewable energy inputs were calculated to be 469.12 MJ ha-1 (3.88%) and 11610.03 MJ ha-1 (98.65%), respectively. The calculation shows that the total greenhouse gas emissions are 380.52 kgCO2-eq ha-1 and the greenhouse gas emission rate is 0.38 kgCO2-eq ha-1. Sesame production is highly profitable for the 2022-2023 production season in terms of energy use efficiency.
Show more [+] Less [-]Effects of Heat and Drought Stress on Sustainable Agriculture and Future Food Security in Türkiye Full text
2024
Serpil Bas | Dilek Killi
This review investigates the effects of heat and drought stress on future food security of Turkish agriculture. Temperature average is expected to rise to 3.2°C at the end of the current century while annual precipitation will decline more than 10% in the west and south and rise by 20% in the north of Türkiye, implying that climate change will affect ecosystem sustainability. It is therefore crucial to develop strategies to mitigate and adapt to climate change such as adjusting the planting schedule, reduced tillage, fertiliser microdosing, pre-sowing seed treatment, and the application of growth promoting bacteria to improve tolerance to stress by comprehending how plants respond physiologically and biochemically under these stress conditions. Long-term heat stress may hinder photosynthetic electron transport, decreasing the plant's ability to make use of energy for photosynthesis. The immediate response of plants under drought stress involves closing stomatal openings to reduce water loss through stomatal conductance. Combined heat and drought stress have a greater adverse effect on plant development and production than their effects in isolation. Plant phenotyping can play a major role in “climate-proofing” Turkish agriculture through the identification and development of crop varities with improved prouctivity, climate resilience and input requirements. Digital agriculture will also improve the efficiency of Turkish agricultural systems as the adapt to a hotter drier climate. To ensure future food security and the viability of the agro-economic system in Türkiye steps must be taken to make Turkish agriculture more robust in preparation for the impacts of climate change.
Show more [+] Less [-]Comparison of Chemical Constituents of Some Plant Species of Lamiaceae Family Grown Conventionally and Organically Full text
2024
Özlen Özkurt | Rifat Battaloğlu
In this study, the chemical constituents of Origanum onites, Salvia officinalis and Lavandula officinalis plants belonging to Lamiaceae family grown by conventional and organic methods were determined by soxhlet extraction. Gas Chromatography-Mass Spectrometry (GC-MS) method was used to determine the chemical constituents of conventionally and organically grown plant samples. When the results of the analyses were examined, out of 97 chemical components of Salvia officinalis plant, 50 components were determined from plants grown with conventional farming methods and 78 components were determined from plants grown with organic farming methods. Of the 38 components detected in Origanum onites, 36 components were determined from plants grown with conventional farming methods and 38 components were determined from plants grown with organic farming methods. Out of 60 components of Lavandula officinalis, 40 components were determined from plants grown with conventional farming methods and 60 components were determined from plants grown with organic farming methods. In terms of chemical structure, the components are divided into different classes as hydrocarbons, monoterpenes, monoterpenoids, sesquiterpenes, sesquiterpenoids, diterpenes, diterpenoids, fatty acids and derivatives, and phenolic compounds.
Show more [+] Less [-]Amelioration of the Detrimental Effects of Water Deficit Stress on Lentil (Lens culinaris Medik) Through the Utilization of Poultry Litter-Based Compost Full text
2024
Sanjida Islam | Md. Mehedi Hasan | Md. Zakarya Ibne Sayed | Sripati Sikder | Abu Khayer Md. Muktadirul Bari Chowdhury
It is critical that Bangladesh faces water scarcity during the dry season, affecting lentil (Lens culinaris Medik.) yield and some yield components during seedling and flowering stages. Thus, a two-factorial pot experiments (The experiment comprises Factor A: three fertilization levels i.e. F1 = Control [inorganic], F2 = poultry litter-based compost [20 ton/ha], F3 = poultry litter-based compost [30 ton/ha]; Factor B: two irrigation levels such as W1 = 100% field capacity [FC] and W2 = 70% FC) were designed at Hajee Mohammad Danesh Science and Technology University, Dinajpur, from November 2018 to April 2019. And it was investigated how the poultry litter-based composts affected the morpho-physiology, yield and yield components of the lentil (BARI Masur-4) variety under different irrigation stress levels. Obtained results revealed that the tallest plant (30.7 cm at 75 DAS) and maximum branch number per plant (14.1 at 65 DAS), leaf chlorophyll a (0.30 mg/g), highest RLWC (70.28%), lowest proline content (1.57 µ moles g-1 FW), maximum number of pods per plant (39.4 at 75 DAS) and total grain yield (3.62 kg/m2) were recorded from compost F3 (poultry litter-based compost 30 tons/ha) with W1 (100% FC). Results also showed that the yield contributing attributes and yield of lentils were drastically reduced by water stress conditions with different rates of fertilization. In drought conditions (W2 = 70% FC), F3 (30 ton/ha poultry litter-based compost) fertilization produced the highest plant height (30.20 cm at 75 DAS), number of branches (11.5 at 65 DAS), stem dry weight (0.35 g), lowest proline (3.88 µ moles g-1 FW), highest pod number per plant (33.1), weight of 100-seed (2.36 g), total grain weight (2.77 kg/m2), harvest index (58.84%) compared to other fertilizations (F1 and F2). In summary, F3 (30 tons), a compost made from poultry litter, provides better soil conditions under drought conditions compared to F1 and F2 in the year of 2018-19 at the 0 and 20 tons/ha, respectively under the field conditions.
Show more [+] Less [-]Colic in horses: Effects of dietary factors Full text
2024
Şevket Evci
Studies on colic, an economically important metabolic disease in horses, have typically emphasized maintenance characteristics. However, recent research has demonstrated that nutrient content also contributes to the development of colic. Microbial fermentation of the diet begins in the stomach and continues through the hindgut. During this process, various substrates are produced, including acetate, propionate, butyrate, and methane. The gut contains bacteria such as Firmicutes and Bacteroidetes, but the dominance of one over the other is influenced by the type of substrate available in the gut, such as oat, barley, wheat, corn, etc. Microbial fermentation in the equine cecum is markedly influenced by the pH balance of the nutrient metabolism. This has varying impacts on the cecal microbiota. Investigations into the effects of different feeding methods and nutrients have yielded diverse outcomes for the etiology of colic and post-colic nutrition. The objective of this review is to assess the impact of nutrition and diet composition on the etiology of colic in horses, investigate the role of additives in preventing colic cases, and analyze the results of several studies.
Show more [+] Less [-]Efficacy of Ethephon Doses on Vegetative and Reproductive Attributes of Watermelon [(Citrullus lanatus (Thunb.) Matsum. & Nakai] Full text
2024
Ashish Pangeni | Sandip Kathayat | Pankaj Karki Dholi | Sujan Khanal | Garima Parajuli | Bharat Bimarsa
Watermelon is a widely cultivated cucurbitaceous crop with economic and dietary significance. The plant's ability to reproduce effectively relies on the harmonious growth and maturation of both its male and female flowers. At the farm level, determining the exact amount of ethylene required to regulate the development and sexual expression of individual floral buds remains uncertain, despite the known influence of exogenously applied ethylene on these processes. The goal of the research was to explore how the ethephon doses influence vegetative characteristics, sex expression, and watermelon yield. The experiment, employing a one-factorial Randomized Complete Block Design (RCBD) comprising five treatments and four replications, was conducted in a farmer's field in Buttabari, Jhapa. Using R-stat software, the data were analyzed at a 5% level of significance. Treatment consisted of Ethephon with four doses namely; 100ppm, 200ppm, 300ppm, 400ppm, and a control. Ethephon application was done twice, once at the two true-leaf stages and another at four true-leaf stages. The study revealed that plant height decreased with ethephon compared to the control, reaching a minimum of 280.1 cm at 400 ppm and a maximum of 307.1 cm in the control. Additionally, the highest branch numbers were observed with ethephon at 200 ppm. The plot treated with 200ppm ethephon was found to be more effective than alternative doses at increasing the total number of female flowers, bearing 15.25 female flowers per plant. Control (166.50 per plant) and 400 ppm (150.00 per plant) had the highest and lowest male flower counts per plant, respectively. A maximum yield of 25.12 t/ha and a minimum yield of 19.1 t/ha were determined at 200 ppm and control, respectively. Hence, farmers are found to benefit from ethephon doses of 200 ppm.
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