Abdulah Almahdi

Managemnt and Sciences University (MSU) · International Medical School (IMS)

Scrub typhus, caused by mite-borne Orientia tsutsugamushi (O. tsutsugamushi), is a major febrile disease in the Asia-Pacific region. The DNA load of O. tsutsugamushi in the blood was previously found to be significantly higher in patients with fatal disease than those with non-fatal disease and correlated with the duration of illness, presence of e...

The coronavirus disease 2019 (COVID-19) pandemic and related public health intervention measures have been reported to have resulted in the reduction of infections caused by influenza viruses and other common respiratory viruses. However, the influence may be varied in areas that have different ecological, economic, and social conditions. This stud...

Red Sea represents one of the most remarkable marine ecosystems. However, it is also one of the world's least explored areas of marine biodiversity. The aims of this investigation were therefore, to isolate marine microorganisms from the seashore sediments and water in shallow region from west Yemen coast, to assess their antimicrobial potential, t...

This study aims to determine the prevalence of low birth weight in Sugh El-Chmis /Alkhoms -Libya and the associated factors with the low birth weight of the baby. A cross-sectional study was performed in Libya, in 2015 using a pre-tested self-administered questionnaire on a stratified sample of 408 pregnant women. Descriptive, bivariate and multiva...

Pathogenic microorganisms from hospitals, communities, and the environment remain great threats to human health. The increasing concern about antibiotic resistance has also necessitated the search for robust alternatives. Therefore, this study aims to isolate, screen and evaluate the antibiotic susceptibility of Pseudomonas aeruginosa isolated from...

Background and Objective: Helicobacter pylori is relatively new and at the preliminary stage in Malaysia. However, it is limited to find

A total of 50 actinomycete isolates were isolated from different locations in Yemen (Sana'a, Taiz, Ibb and Alhodida). Agar disc diffusion method that used for screening antibacterial and antifungal activities were more effective and give better results than agar well diffusion method. Antibacterial activity of isolates was more effective than antif...

Background and Objective: Nowadays, the world is facing significant challenges in modern healthcare services because many antimicrobial agents have lost their effectiveness in treating infectious diseases primarily due to the development of microbial resistance. Mushroom species release various bioactive compounds and yet largely untapped resource...

Based on results and analysis, the values of ten parameters namely; Dissolved Oxygen (DO), Biochemical Oxygen Demand (BOD), Chemical Oxygen Demand (COD), Turbidity, Nitrate, Nitrite, Chlorine, Fluoride, pH and coliforms bacteria in the study stations were influenced by evaluate water quality during the three months of study periods. Hence, this res...

Medicinal plants and herbal preparations are gaining renowned interest in scientific communities nowadays due to their reliable pharmacological actions and affordability to common people which makes them effective in control of various diseases. The present study was aimed to evaluate the antibacterial activities of aqueous, methanol and ethanol ex...

Background: The screening for novel antimicrobial agents continues in a rather overlooked hunting ground for many researchers. Streptomyces is the best-recognized genus of actinomycetes used in the screening approach for novel antibiotic-producing microorganisms. The work is aimed to isolate bioactive actinomycete strains and identify the most pote...

In this study, the soil samples were collected from four different mountain sites of Hadhramout governorate in Yemen to investigate the diversity of actinomycetes. Soil samples were analyzed for physicochemical characteristics (temperature, pH and nature of the soil samples). Site soil color varied from brown to light brown and dark brown, temperat...

The presence of fumonisins, zearalenone (ZEA) and T-2 toxin has not been regulated in the legislation of Republic of Yemen. Therefore, the data on contamination of cereals, especially corn, which is highly susceptible to contamination by such toxins, are not sufficient. In this regard, fifty corn kernels which showed Fusarium contamination and whic...

Background: Pseudomonas aeruginosa (P. aeruginosa) is the most common microorganism, which isolated from hospitalized patients for longer than one week. It is a frequent cause of nosocomial infections such as pneumonia, urinary tract infections, and bacteremia. Traditionally, P. aeruginosa has been typed based on its phenotypic characteristics, suc...

The present study aims to characterize Pseudomonas aeruginosa isolates in three hospitals in Hadhramout, Yemen. Two hundred samples were collected from patients, health workers staff hands and environmental samples and P. aeruginosa isolates were typed using antibiotyping and ERIC-PCR. The results showed that eleven yielded ERIC genetic patterns (P...

Fatty acids like ergosterol and tween 80 are depressing the inhibition of mycoparasitic activity of polyene antibiotics by neutralizing effect. Polyene antibiotics become bound to the fungal cell membrane and cause permeability changes with attendant depletion of essential cellular constituents. Loss of potassium and ammonium ions, inorganic phosph...

AddThis Sharing Buttons Share to TumblrShare to Google BookmarkShare to FacebookShare to TwitterShare to More Forty-eight samples of different agricultural soils (100 g each) were collected from 9 different Province inYemen during 2008, which were cropped with corn, wheat barley and cabbage in the previous season. The samples were mycologically ana...

Environmental samples were subjected to determine frequency of occurrence of pathogenic campylobacters in the environment. The antimicrobial susceptibility of the isolates was tested to evaluate the level of antibiotic sensitive campylobacters in the environment of investigation. In all, 70 Campylobacter isolates were obtained from water and domest...

To design a special device which can be used with nonselective blood-free nutrient agar without enrichment for detection of campylobacters from water. The Kapadnis-Baseri device (KB device) was designed and evaluated in comparison with the conventional method (C method) for detection of Campylobacter spp. from river water samples. The results indic...