Dr.Janan M Salih Mohammed | University of Duhok (original) (raw)

Papers by Dr.Janan M Salih Mohammed

International Journal of Research in Medical Sciences, 2020

Journal of Physics: Conference Series, 2012

Rapid detection of viability and growth of pathogenic microorganisms is very important in many ap... more Rapid detection of viability and growth of pathogenic microorganisms is very important in many applications such as food and drug production, health care, and national defense. Measurements on the electrical characteristics of cells have been used successfully in the past to detect many different physiological events. The effect of electromagnetic fields on the growth of bacteria (Staphylococcus aureus) was studied with the bio-impedance technique. The growth situations of bacteria in the absence and presence of different intensities of static and alternative magnetic fields were examined and analyzed. The results show that the impedance of bacteria fell in the presence of DC magnetic fields. In contrast the impedance increased when the bacteria were exposed to AC magnetic fields. Based on these results the bacterial growth indicated by the change in the impedance is inhibited under DC magnetic fields and enhanced under AC fields.

مجلة جامعة دهوك, Nov 9, 2022

Background: The present study was carried out during the period from October 2021 until March 202... more Background: The present study was carried out during the period from October 2021 until March 2022, to deretrerpeehteteete of parasites in stool samples of primary school children. MATERIAL AND METHODS: A total of 1172 diarrheic stool specimens were randomly collected from primary school children of both sexes and different ages (6-12 years) visited Azadi Teaching Hospital, Heevi Pediatric Hospital, and Kurdistan private (Maternity and Pediatric) Hospital in Duhok city. RESULTS: In the current study, 40.96% (480/1172) of the examined specimens were positive for parasitic stages, they included 56.67% (272) males and 43.33% (208) females. High prevalence (40%) of intestinal parasites was reported among the age group 6-7 years. The recorded intestinal parasitic species included: Entamoeba histolytica which was the most dominant intestinal protozoa with infection rate of 21.67% (254/1172), followed by Enterobius vermicularis 13.48% (158/1172), then Giardia lamblia of about 5.46% (64/1172) , while Blastocystis hominis was reported only in four children at a rate of 0.34% (1172). As regards to some sociodemographic factors, significant correlations (P <0.05) were observed between the rates of infection with intestinal parasites and residency, dirty fingers and family size. While regarding other factors such as, literacy, hand washing and having pets the correlations were non-significant (P >0.05).

MICROBIAL CONTAMINATION OF CELL PHONES AMONG MEDICAL STAFF AT AZADI TEACHING HOSPITALAND HEVI PEDIATRIC HOSPITAL /DUHOK, IRAQ, 2016

Background: The widespread use of cellular mobile devices especially in medical staff that are wo... more Background: The widespread use of cellular mobile devices especially in medical staff that are working in hospitals help to spread the pathogenic organisms. Objective: The study was done to investigate microbial contamination of cellular mobile devices among medical staff at Azadi Teaching Hospital and Hevi Pediatric Hospital /Duhok. Materials and methods: A total of (200) samples were collected from mobile devices of medical staff in Azadi Teaching Hospital and Hevi Pediatric Hospital/Duhok. Swab samples (Sterile moistened) were taken and revolved over the surface (both sides) of the cellular mobile devices and inoculated into nutrient broth at 37°C for 24 then sub-cultured on agar media such as: nutrient agar , MacConkey agar, Mannitol salt agar, blood base agar and Sabouraud dextrose agar. Organisms was Identified depending on colonies features, Gram stain, followed by biochemical tests. Results: Out of 200 samples examined, (100%) were contaminated with single or multiple organisms. Six species of bacteria were detected involved: (42%) Coagulase Negative Staphylococci, (39 %) for each Staphylococcus aureus and Bacillus spp., (4 %) E. coli, (3 %) Klebsiella spp. (2.5 %) Proteus spp and Candida spp. (1.5%). Samples taken from medical lab showed high rates (52%) of mixed growth compared with (42.42%), (16.67%) and (12.28%) from pharmacists, physicians and nurses respectively. Also samples taken from female recorded higher contamination rates (72.9%) compared with male (69.89%). Conclusion: the study shows high bacterial and fungal contamination of mobile phone among medical staff at Duhok city and emphasized on control of transmission of contamination through mobile phones.

ANTIBACTERIAL ACTIVITY OF GARLIC AGAINST MULTI-DRUG RESISTANT Staphylococcus Aureus AND Enterococcus faecalis IN DUHOK CITY, 2016

Background: Garlic has been used worldwide for centuries by different societies to fight differen... more Background: Garlic has been used worldwide for centuries by different societies to fight different types of pathogens. It is antibacterial activity is attributed to its key component allicin, which is rapidly synthesized when garlic is squished. Objective: The study was done to evaluate the antibacterial activity of garlic extraction against the multidrug resistant methicillin resistant Staphylococcus aureus (MRSA) and Enterococcus faecalis. Methods: Forty isolates (40) of S. aureus were collected from hospitalized patients in Azadi teaching hospital and twenty isolates (20) of E. faecalis were collected from different private dental clinics in Duhok city. The isolates were identified by routine methods. Garlic antibiotic activity were performed by using garlic extracts in serial dilutions with the concentrations of (100, 75, 50, 25, 10 and 5 %) by agar well diffusion assay, also antibiotics susceptibility test were done by the disc diffusion method using Muller-Hinton agar medium. Results: Different concentrations of garlic extract exhibited different inhibition zone against S. aureus and E. faecalis. The potency of garlic extracts on S. aureus ranging from (15-36) mm diameter zone of inhibition, while that of E. faecalis ranging from (14-33) mm diameter zone of inhibition; however S. aureus was more sensitive than E. faecalis. The zone of inhibition was increase with increasing concentration of extracts; the concentration (100 %) of garlic extract had the highest inhibitory effect about (36mm) inhibition zone for S. aureus and about (33mm) inhibition zone for E. faecalis. Conclusion: The antimicrobial activity of garlic extract indicates that there suitability for being used as important certain medicines, so garlic is active to serve as anti-bacterial agents against multi-drug resistant bacteria.

incidence of pseudomonas auroginosa among burns patients, 2012

Seroprevalence and some demographic factors associated with Toxoplasma gondii infection among female population in Duhok province, Iraq, 2020

Background: The causative agent of toxoplasmosis is Toxoplasma gondii which is an intracellular p... more Background: The causative agent of toxoplasmosis is Toxoplasma gondii which is an intracellular protozoan. It has an important role in abortion and congenital diseases in pregnant women, which lead to infant's defectiveness birth when pregnant, are exposed during pregnancy. Toxoplasmosis is one of the most prevalent and most successful parasitic infectious disease worldwide, due to its efficient transmission through the ingestion of tissue cysts in undercooked and infected meat, or the ingestion of oocysts in contaminated vegetables and water. The present study aimed to investigate the seroprevalence rate of anti-Toxoplasma gondii Abs and their relation to some demographic factors among females, in Duhok province/ Kurdistan Region/ Iraq. Methods: During the period from October 2016 to November 2017, a total of 792 random blood samples were collected from the female population of different ages (16-55) years and various socioeconomic classes, who attended Obstetrics and Gynecology Hospital, Azadi teaching hospital and Central Public Health Laboratory/ Duhok. Results: Out of 792 samples examined, 288 (36.3%) were seropositive from which 282 (35.61%) were found seropositive for IgG, while only six samples (0.76%) were seropositive for IgM. Regarding to occupation, the highest rate for chronic toxoplasmosis was reported in housewives followed by employed and students at rates of 40.19%, 22.3%, and 14.0%, respectively. These outcomes were statistically significant (p<0.05). The age group 36-45 years showed the highest seropositive rate for both IgG and IgM Abs which were 41.02% and 1.28%, respectively, which was statistically non-significant. The higher rate of seropositivity was observed among married females 39.93%, and pregnant 41.9% versus non-pregnant 33.3%. This difference was statistically significant (p<0.05) among married while non-significant in pregnant. Concerning to blood groups, the highest rate of seropositivity was reported among females with blood group AB+ which was 60% followed by group O-which was 46.7 %. This difference was statistically non-significant (p>0.05). Conclusions: This study showed the importance of demographic factors to the epidemiology of T. gondii in females, which support the role of public health in the control of infectious diseases.

Seroprevalence and some Demographic Factors Associated with Toxoplasma, 2020

The present study aims to investigate the seroprevalence rate of Toxoplasma gondii infection and ... more The present study aims to investigate the seroprevalence rate of Toxoplasma gondii infection and its relation to some demographic factors among males in Duhok province/Iraq. A total of 424 random blood
samples were collected from the male population of different ages (18-60) years and different social economic classes. Out of 424 samples examined, 108 (25.47%) were seropositive to the anti- T. gondii
antibodies; 88 (20.75%) were found seropositive for IgG, while 20 (4.72%) samples were seropositive for IgM. Regarding occupation, the highest percentage for chronic toxoplasmosis was reported in workers
followed by policemen and pensioners at rates of 23.96%, 23.6%, and 23.07%, respectively. The age group 18-30 years showed the highest seropositive rate which was 26.6%; the seropositivity rate decreased with the increase of age. Regarding the blood groups, the highest percentage of IgG was reported in both O+ and Bgroups, which were 23.2% and 23.1%, respectively. The higher rate of seropositivity was observed among
married males (21.32%) as compared to unmarried males (19.05%) and fertile (22.3%) versus sterile males (12.5%). Concerning IgM antibodies, the highest seropositivity (9.4%) was reported in infertile males. The results of this study showed the importance of demographic factors to the epidemiology of T. gondii in males, which support the role of public health in the control of infectious diseases.

Intestinal Parasites and associated Risk Factors among Primary School Children in Duhok City-Kurdistan Region/Iraq, 2022

Background: The present study was carried within period from October 2021 till March 2022, to det... more Background: The present study was carried within period from October 2021 till March 2022, to detect the presence of all parasites including protozoa and helminths forms (cysts, eggs, larvae) in stool samples. Material and Methods: Total number of examined diarrheoal stool specimens were 1172, which collected randomly from children at primary school age (ranging between 6-12 years old) including both males and females whom attending Azadi Teaching hospital, Heevi Pediatric and Kurdistan private (Maternity and Pediatric) hospitals in Duhok city. Results: in the current study, 272 (56.66%) were males and 208 (43.33%) were females infected with intestinal parasites. High prevalent rate of intestinal parasites reported among the age group (6-7) years old, of about 40%. Related to intestinal parasitic species distribution, Entamoeba histolytica was the most predominant intestinal protozoa with infection rate 254 (21.67%), followed by Enterobius vermicularis 158 (13.48%), then Giardia lamblia of about 64 (5.46%), while Blastocystis hominis reported only in four children with low prevalence rate (0.34%). In regards to some sociodemographic factors, the majority of the participated children resided in Duhok city 286(59.58%), while the rest resided in rural area 194(40.42%). Statistically, the residency results were significant (P<0.05). For children mothers educational status, more than 250 (52.08%) were illiterate.