American Journal of Biology and Natural Sciences

Intestinal parasites are a widespread health problem globally, especially in developing countries, as the rate of infection is closely related to health, social, and environmental conditions, in addition to soil, water, and food contamination with the infectious stages of parasites. Despite the a...

Background: Workplace stress activates the hypothalamicpituitary-adrenal (HPA) axis and can lead to cortisol dysregulation, measurable through serum biomarkers. Aim of the study: The purpose of this study was to explore the relationship between type of job (technicians , teachers and administrato...

At the Samarkand Scientific Experimental Station, in 2025, Xin Lu Zao-78 cotton variety was planted in double rows under the film with a row spacing of 76x10 based on foreign technology. Stom-P Original 33% k.e. containing 330 g/l of pendimethalin was sprayed against weeds. Before sowing, 80-100 ...

This article examines the general physical properties of rainfed (boghar) soils in the northern part of the Turkestan mountain range. It has been established that over the past period, the general physical properties of these soils have undergone certain changes. The main reasons for this include...

Polycystic ovary syndrome (PCOS) is one of the most common endocrine disorders affecting women of reproductive age and is strongly associated with insulin resistance and infertility. This study aimed to evaluate serum Fetuin-A levels and their relationship with glycemic control and reproductive h...

Airway eosinophilic inflammation characterizes the leading phenotype of adult asthma, and BEC is considered a convenient biomarker for representing the level of underlying airway inflammation and severity of asthma. The current case-control study was carried out among adults visiting Al-Diwaniyah...

Introduction: cigarette smoking and vaping are recognized as significant health hazards. However, the accurate effect of cigarette and vaping smoking on salivary LDH levels remain unclear. Objectives: the objective of this study is investigating the effect of cigarette smoking and vaping on oral ...

Background:  Celiac disease (CD)  is consider an autoimmune disease which can be initiated  by gluten intake,which need  an accurate serological testing and supervision. Many different antibody tests are accessible, but the ideal  cut-offs and  combination of tests i...

Abstract: Culex pipiens L. (Diptera: Culicidae) serves as a significant vector for several illnesses. This mosquito is extensively distributed globally. The activity of pesticides can influence mosquito populations by regulating their numbers, interfering with biological control mechanisms, or fo...

Trichomoniasis vaginalis infection, a prevalent infectious disease which is not viral and a sexually transmitted disease, has a tremendous impact on women's reproductive health, pro-inflammatories Interleukin-17 (IL-17) and a regulatory cytokine Interleukin-35 (IL-35) is the key to determining th...

Celiac disease (CD) is an enteropathy characterized by chronic immune-mediated intestinal damage due to dietary gluten. The consequence of celiac disease is a gradual decline of the small intestinal mucosal layer, dysregulated cytokine signaling, and a deranged balance between the two branches of...

This article examines the epizootic status of Bradzot disease in sheep, conducted in a number of sheep farms. Several factors affecting the development of Bradzot disease, clinical signs, pathological and anatomical changes, bacteriological examination and laboratory studies on experimental anima...

Influenza is a constant, heavy burden on medical facilities, with millions of severe cases and an incredible amount of death each year. Precise diagnosis is critical for the management of epidemics and reverse transcription PCR (RT-PCR) became preferred approach due to its capability to accuratel...

The current study of enzymatic characteristics of Aspergillus flavus and Aspergillus niger associated with honeybee workers in Iraq regarding these hydrolytic enzymes as major biochemical markers of their pathogenicity. Fungi samples were obtained from 1 st October to 1 st December, 2025, in each...

Nanotechnology has garnered the interest of researchers owing to the diminutive size and elevated surface-to-volume ratio of nanoparticles, resulting in alterations in chemical and physical properties. Green-synthesize silver nanoparticles (AgNPs) from the Plantago lanceolata plant and investigat...

Giardia are non-invasive intestinal protozoan parasites and are the causative agent of giardiasis. It is widely distributed worldwide, infecting humans, domestic animals such as cats and dog, as well as mammals, fish, and bird clinical signs range from asymptomatic infection to foul-smelling, fat...

Background: Postbiotics are non-viable microbial products or metabolites that may regulate mammalian epithelial responses without the biosafety concerns linked with live bacteria. Their effects can be studied using commercial mammalian cell lines without animals, human samples, histology, microsc...

The present study was carried out at the Research Station of the College of Agriculture, University of Tikrit, during the 2024–2025 growing season to investigate the effect of different water stress levels on physiological and biochemical responses, essential oil production and menthol accumulati...

This article studied the pharmacological effects and safety level of a preparation produced from trout liver on the organism of rabbits. The preparation was added to the feed for a specified period, and the live body weight of the animals was regularly monitored. It was determined that the rabbit...

This article was revised in IMRAD format and translated into scientific English. It examines the environmental plasticity of the genotype of African catfish (Clarias gariepinus) in flow-through culture systems, with particular attention to gene expression, epigenetic responses, and production eff...

This article presents data on the study of effective immunoprophylaxis against Infectious Bronchitis in Lohmann Brown breed chicks raised in industrialized poultry farms and smallholder farming operations, through the application of the "Nobilis Ma5 + Nobilis 4/91" Infectious Bronchitis vaccine i...

The study of cellular morphology and histological organization represents a fundamental aspect of modern biological and medical sciences, as it provides essential insights into the structural and functional differences between normal and pathological conditions. Cervical epithelial cells are of p...

This study presents the results of an epizootological assessment of Pullorum dis-ease, Colibacillosis, and their mixed infections across different age groups of poul-try in two commercial farms of the Republic of Karakalpakstan. The investigation was conducted during the first quarter of 2026 at ...

Shift work is defined as a work pattern where workers perform tasks outside regular working hours. It has become an increasingly common phenomenon in various industries, many of which have been linked to burnout and identified as possibly detrimental to heart health. This study was conducted to e...

Methotrexate (MTX) is highly nephrotoxic and acts via oxidative stress and inflammatory cascades. Pomegranate peel extract (PPE) contains punicalagins and exhibits potent antioxidant activity which is beneficial to the kidney. To assess the protective effects of pomegranate peel Extract (PPE) aga...

The antibacterial activity of tannin extracts isolated from Citrus limon and Capparis spinosa against bacterial isolates recovered from poultry meat was studied in this research. VITEK 2 Compact system to determine eight bacterial species and agar well diffusion method on Mueller–Hinton agar at f...

Medicinal plants play an important role in traditional and modern medicine due to their wide range of pharmacological properties. Despite their therapeutic value, some plant-derived compounds may exhibit cytotoxic or genotoxic effects depending on their chemical composition and concentration (Win...

In this article, the Pseudomonas chlororaphis bacterial strain was isolated by taking samples from the moderately saline soil of the Fergana Valley and identifying all microorganisms. The morphology of the obtained Pseudomonas chlororaphis bacterial strain was determined by Gram staining. As is k...

Background: Salvia compressa is a highly valued Iraqi-endemic plant Iraqi-endemic plants containing various polyphenolic and flavonoids compounds. constrained by environmental and seasonal challenges, however, limiting the sustainability and commercial availability. Objective: To assess the effec...

Dictyocaulosis is a significant parasitic disease of domestic ruminants caused by Dictyocaulus filaria, which inhabits the respiratory tract and leads to respiratory disorders, reduced productivity, and economic losses. This study aimed to confirm and characterize ovine dictyocaulosis using larvo...

This article analyzes modern diagnostic methods of intestinal cestodes, their effectiveness, and the economic damage caused by the disease to the livestock industry. The importance of molecular-genetic (PCR), nested-PCR and sequencing technologies based on mitochondrial genes, along with traditio...

The article presents the results of physicochemical analyses of carcass meat from broiler chickens whose diets were supplemented with probiotics. The results of laboratory studies assessing the compliance of the meat with state standard requirements, as well as its freshness, are also presented.

In the process of preparing hemolysin from blood samples, biological materials were collected in accordance with veterinary-serological requirements and carried out in laboratory conditions. The steps of obtaining hemolysin were carried out by isolating erythrocytes from blood samples and immunob...

This article focuses on the study of gastrointestinal helminth infections in horses. Currently, drastic changes in the bio-ecological environment are contributing to the widespread occurrence of parasitic and infectious diseases across various regions. The article presents a brief overview of the...

Pseudomonas aeruginosa is an opportunistic Gram-negative bacterium associated with healthcare-associated infections and difficult-to-treat infections in vulnerable patients. Its clinical importance is driven by intrinsic resistance, the ability to acquire additional resistance determinants, multi...

This article studies the economic efficiency of growing leek varieties, one of the rare vegetable crops. The study analyzed the yield, product quality, and costs incurred in the cultivation process of leek varieties. The economic efficiency of the varieties was also assessed based on the value of...