1.Antibacterial Activity of Stilbenes Isolated From Reynoutria japonica Against Vancomycin-resistant Enterococci: An In Vitro and In Silico Approach
Karishma AHMED ; Khizar Abdullah KHAN ; Sultan Mehtap BÜYÜKER ; Muhammad Arshad ZAMAN ; Atif Ali Khan KHALIL ; Syed Babar JAMAL ; Muhammad FAHEEM ; Mi-Jeong AHN ; Mutiullah KHATTAK
Natural Product Sciences 2026;32(1):104-105
2.Pre- and post-radiotherapy assessment of psychosocial factors in female cancer patients and their caregivers: a clinical observational study from India
Tahreem ARSHAD ; Samreen ZAHEER ; Mohammad AKRAM ; Deoshree AKHOURI ; Afreen Kamal AROOQUI ; Ruquiya AFROSE ; Shahid Ali SIDDIQUI
Korean Journal of Clinical Oncology 2026;22(1):8-17
Purpose:
The present study investigates the psychological factors impacting female cancer patients receiving radiotherapy and the individuals providing care for them, within a sociocultural environment that frequently marginalizes and depends on women. This research highlights a strategy for cancer care that may enhance results for both patients and caregivers by attending to psychosocial needs. The primary objectives are to measure the levels of anxiety, depression, quality of life, and perceived stress in both patients and caregivers, as well as to determine how psychosocial counseling affects these factors.
Methods:
It was a single-group pre-post observational study. Before starting radiotherapy, assessment of various psychosocial factors was done in female cancer patients and their respective caregivers. Psychosocial counseling sessions were conducted at weekly intervals during radiotherapy. At the 6th week after radiotherapy, assessment of same psychosocial factors was done again in both the patients as well as their caregivers.
Results:
The results show that both patients and caregivers had serious psychological disorders, such as anxiety, depression, perceived stress, and decreased quality of life. Psychosocial modulation was associated with improvement in quality of life measures like overall health and emotional and physical functioning.
Conclusion
The findings highlight how crucial it is to include psychological support in radiotherapy regimens. Despite limitations of the study, such as its exclusive focus on female patients, the results highlight the need to provide clinical staff with psycho-oncological training. The study recommends further investigation to ascertain the long-term effects of psychological health on treatment compliance and patient survival.
3.Antibacterial Activity of Stilbenes Isolated From Reynoutria japonica Against Vancomycin-resistant Enterococci: An In Vitro and In Silico Approach
Karishma AHMED ; Khizar Abdullah KHAN ; Sultan Mehtap BÜYÜKER ; Muhammad Arshad ZAMAN ; Atif Ali Khan KHALIL ; Syed Babar JAMAL ; Muhammad FAHEEM ; Mi-Jeong AHN ; Mutiullah KHATTAK
Natural Product Sciences 2025;31(4):299-308
Enterococcus species are Gram-positive cocci normally found in the gut but have emerged as opportunistic pathogens in healthcare settings, with rising multidrug resistance, particularly vancomycin-resistant Enterococci (VRE) posing major therapeutic challenges. This study evaluated the antibacterial and synergistic effects of plant-derived stilbenes from Reynoutria japonica against clinical VRE isolates. Ten clinical Enterococcus faecalis isolates were identified using standard morphological, biochemical, and Gram-staining methods, and antibiotic susceptibility testing. The antibacterial activity of polydatin, resveratroloside, and trans-resveratrol was assessed by agar well diffusion, and evaluation of minimum inhibitory concentrations (MICs) and evaluation of bactericidal activity concentrations (MBCs), with synergistic effects tested in combination with vancomycin.Molecular docking was performed with DapF, vanA, and gelE proteins. All isolates were resistant to vancomycin, ampicillin, imipenem, gentamicin, and ciprofloxacin but sensitive to linezolid. All three stilbenes displayed antibacterial activity. Notably, trans-resveratrol was the most active compound, with a MIC value of 0.156 mM and bactericidal activity (an MBC value equal to the MIC). Furthermore, all compounds exhibited synergistic effects when combined with vancomycin. Phytochemical analysis confirmed these stilbenes as major constituents in the root extract of R. japonica. Molecular docking studies revealed strong binding affinities of the compounds to key virulence and resistance-associated proteins (DapF, VanA, and GelE). These results indicate that transresveratrol and related stilbenes are promising candidates for development as alternative or adjunct therapeutic agents against VRE infections. Additionally, this study substantiates the traditional use of R. japonica as a source of bioactive antimicrobial compounds.
4.Determination of Bergenin in Different Parts of Bergenia ciliata using a Validated RP-HPLC Method
Ejaz ALI ; Khalid HUSSAIN ; Nadeem Irfan BUKHARI ; Najma ARSHAD ; Amjad HUSSAIN ; Nasir ABBAS ; Sohail ARSHAD ; Sajida PARVEEN ; Naureen SHEHZADI ; Shaista QAMAR ; Abida QAMAR
Natural Product Sciences 2021;27(1):54-59
Bergenia ciliata (Family: Saxifragaceae) is a folklore remedy for the treatment of various ailments in Asian countries. Bergenin (1) has been isolated as an active constituent in many studies, however, the amount of bergenin has not been determined in all parts of the plant. A simple RP-HPLC method was developed to determine the amount of bergenin in methanol extracts of leaves, rhizomes and roots of the plant. Separation was achieved on an Agilent Eclipse XDB-C18 column maintained at 25 o C using isocratic solvent system (water: methanol: acetic acid; 62.5:37:0.5 v/v/v) adjusted at pH 2 0 at a flow rate of 1.0 mL/min. and detected at 275 nm. Correlation coefficient (0.9952) showed linearity of concentration (5-200 μg/mL) and response. The values of LOD (0.00947 μg/mL) and LOQ (0.02869 μg/mL) indicated that method was sensitive. The recovery of bergenin was 99.99-100% indicating accuracy of method. The methanol extract of rhizomes contained higher amount of bergenin (19.4%) than roots (9.2%) and leaves (6.9%). It is concluded that methanol extract of rhizomes is a better source of bergenin than other parts of the plant. The findings are useful for standardization of bergenin containing extracts and herbal preparations.
5.Determination of Bergenin in Different Parts of Bergenia ciliata using a Validated RP-HPLC Method
Ejaz ALI ; Khalid HUSSAIN ; Nadeem Irfan BUKHARI ; Najma ARSHAD ; Amjad HUSSAIN ; Nasir ABBAS ; Sohail ARSHAD ; Sajida PARVEEN ; Naureen SHEHZADI ; Shaista QAMAR ; Abida QAMAR
Natural Product Sciences 2021;27(1):54-59
Bergenia ciliata (Family: Saxifragaceae) is a folklore remedy for the treatment of various ailments in Asian countries. Bergenin (1) has been isolated as an active constituent in many studies, however, the amount of bergenin has not been determined in all parts of the plant. A simple RP-HPLC method was developed to determine the amount of bergenin in methanol extracts of leaves, rhizomes and roots of the plant. Separation was achieved on an Agilent Eclipse XDB-C18 column maintained at 25 o C using isocratic solvent system (water: methanol: acetic acid; 62.5:37:0.5 v/v/v) adjusted at pH 2 0 at a flow rate of 1.0 mL/min. and detected at 275 nm. Correlation coefficient (0.9952) showed linearity of concentration (5-200 μg/mL) and response. The values of LOD (0.00947 μg/mL) and LOQ (0.02869 μg/mL) indicated that method was sensitive. The recovery of bergenin was 99.99-100% indicating accuracy of method. The methanol extract of rhizomes contained higher amount of bergenin (19.4%) than roots (9.2%) and leaves (6.9%). It is concluded that methanol extract of rhizomes is a better source of bergenin than other parts of the plant. The findings are useful for standardization of bergenin containing extracts and herbal preparations.
6.Sero-epidemiology and risk factor analysis of human brucellosis in Punjab, Pakistan: a cross sectional study
Nawaz, Z. ; Shafique, M. ; Zahoor, M.A. ; Siddique, A.B. ; Ali, S. ; Arshad, R. ; Kausar, S. ; Khan, K. ; Asad, M. ; Rehman, A.U. ; Masih, I.
Tropical Biomedicine 2021;38(No.3):413-419
Human brucellosis is a neglected zoonotic problem worldwide with a high degree of morbidity in humans and is mostly overlooked due to other febrile conditions. The aim of this study was to evaluate the sero-prevalence and risk factors of human brucellosis among subjects living in Punjab, Pakistan. In this cross-sectional study, human blood samples were collected from seven districts of Punjab, Pakistan. Information regarding personal data, demographic data and potential risk factors was collected through a structured questionnaire. Detection of anti-Brucella antibodies was done through Rose Bengal Plate Test (RBPT) and Enzyme Linked Immunosorbent Assay (ELISA). Descriptive analysis, Chi square test and Odds ratio was applied using STATA software version 12. The sero-prevalence of human brucellosis was 13.13% with significantly higher percentage in males 17.23% and age group 25-40 years 16.50% (P=< 0.001). The demographic factors positively associated with human brucellosis were lack of education (P = 0.003; OR = 1.85) and farming as an occupation (P =<0.001; OR = 2.50) Similarly, among the risk factors studied, keeping animals at home (P =<0.001; OR = 2.03), slaughtering of animals (P =<0.001; OR = 15.87) and consuming raw milk (P =<0.001; OR = 5.42) were the factors strongly connected with human brucellosis. A massive awareness should be given to livestock farmers and individuals directly linked to animals regarding risk factors and transmission of brucellosis. Consumption of unpasteurized milk and its products should be condemned to curtail this neglected disease.
7.Antiviral activities of Cholistani plants against common poultry viruses
Shahzad, M.I. ; Anwar, S. ; Ashraf, H. ; Manzoor, A. ; Naseer, M. ; Rani, U. ; Aslam, Z. ; Saba, N. ; Kamran, Z. ; Ali, S. ; Aslam, J. ; Arshad, M.
Tropical Biomedicine 2020;37(No.4):1129-1140
Herbal medicines are becoming more popular and acceptable day by day due to
their effectiveness, limited side effects, and cost-effectiveness. Cholistani plants are reported
as a rich source of antibacterial, antifungal, antiprotozoal, antioxidant, and anticancer agents.
The current study has evaluated antiviral potential of selected Cholistani plants. The whole
plants were collected, ground and used in extract formation with n-hexane, ethyl acetate and
n-butanol. All the extracts were concentrated by using a rotary evaporator and concentrate
was finally dissolved in an appropriate vol of the same solvent. All of the extracts were tested
for their antiviral potential by using 9-11 days old chick embryonated eggs. Each extract was
tested against the Avian Influenza virus H9N2 strain (AIV), New Castle Disease virus Lasoota
strain (NDV), Infectious bronchitis virus (IBV) and an Infectious bursal disease virus (IBDV).
Hemagglutination test (HA) and Indirect Hemagglutination (IHA) tests were performed for
different viruses. The overall order of the antiviral potential of Cholistani plants against
viruses was NDV>IBV>IBDV>AIV. In terms of antiviral activity from extracts, the order of
activity was n-butanol>ethyl acetate>n-hexane. The medicinal plants Achyranthes aspera,
Neuroda procumbens, Panicum antidotale, Ochthochloa compressa and Suaeda fruticose
were very effective against all four poultry viruses through their extracts. The low IC50
values of these extracts confirm the high antiviral potential against these viruses. It is worth
to mention that Achyranthes aspera was found positive against IBDV through all its extracts
which overcome the problem of unavailability of any known drug against IBDV. In short, the
study proved that Cholistani plants are rich source of antiviral agent and their extracts can be
used as good source of antiviral drugs both in crude and in purified form.
8. Salivary gland antigens of laboratory-bred Phlebotomus sergenti and their immunogenicity in human volunteers in laboratory condition
Arshad VEYSI ; Ahmad MAHMOUDI ; Yavar RASSI ; Alireza ZAHRAEI-RAMAZANI ; Mahboubeh FATEMI ; Amir AKHAVAN ; Mohammad YAGHOOBI-ERSHADI ; Mahmood JEDDI-TEHRANI ; Nasibeh HOSSEINI-VASOUKOLAEI ; Daem ROSHANI ; Ali KHAMESIPOUR
Asian Pacific Journal of Tropical Medicine 2020;13(1):17-23
To investigate Phlebotomus (P.) sergenti Parrot, 1917 (Diptera: Psychodidae) salivary gland antigens and their immune response in human. Methods: Human volunteers were exposed to sand flies' bites in the laboratory, and following each exposure the size of induration was recorded. The mean protein concentration of salivary gland lysate and specific anti-P. sergenti saliva IgG was measured. Sand fly salivary proteins were separated by SDS-PAGE and their immunoreactivity was examined by Western blotting assays. Results: Individuals exposed to P. sergenti salivary gland lysate for 8 months showed both antibody and delayed type hypersensitivity responses, although exposure for one month did not provoke any immune responses. The trend of antibody fluctuated during the exposure time and dropped by the end of antigen loading. The mean protein content was (0.36?0.08) ug in each pair salivary glands. Salivary gland lysate showed 11 to 12 major protein bands and 3 to 6 of them were immunoreactive. Conclusions: Our study showed that the salivary gland components of P. sergenti provoked both cellular and humoral immune responses in human. Furthermore, there are some immunogenic proteins in P. sergenti saliva which could be subjected for further investigation as vector-based vaccine candidate/s against anthroponotic cutaneous leishmaniasis.
9.Biomonitoring of Toxic Effects of Pesticides in Occupationally Exposed Individuals.
Muhammad ARSHAD ; Maryam SIDDIQA ; Saddaf RASHID ; Imran HASHMI ; Muhammad Ali AWAN ; Muhammad Arif ALI
Safety and Health at Work 2016;7(2):156-160
BACKGROUND: Workers in pesticide manufacturing industries are constantly exposed to pesticides. Genetic biomonitoring provides an early identification of potential cancer and genetic diseases in exposed populations. The objectives of this biomonitoring study were to assess DNA damage through comet assay in blood samples collected from industry workers and compare these results with those of classical analytical techniques used for complete blood count analysis. METHODS: Samples from controls (n = 20) and exposed workers (n = 38) from an industrial area in Multan, Pakistan, were subjected to various tests. Malathion residues in blood samples were measured by gas chromatography. RESULTS: The exposed workers who were employed in the pesticide manufacturing industry for a longer period (i.e., 13-25 years) had significantly higher DNA tail length (7.04 μm) than the controls (0.94 μm). Workers in the exposed group also had higher white blood cell and red blood cell counts, and lower levels of mean corpuscular hemoglobin (MCH), MCH concentration, and mean corpuscular volume in comparison with normal levels for these parameters. Malathion was not detected in the control group. However, in the exposed group, 72% of whole blood samples had malathion with a mean value of 0.14 mg/L (range 0.01-0.31 mg/L). CONCLUSION: We found a strong correlation (R2 = 0.91) between DNA damage in terms of tail length and malathion concentration in blood. Intensive efforts and trainings are thus required to build awareness about safety practices and to change industrial workers' attitude to prevent harmful environmental and anthropogenic effects.
Blood Cell Count
;
Chromatography, Gas
;
Comet Assay
;
DNA
;
DNA Damage
;
Environmental Monitoring*
;
Erythrocyte Count
;
Erythrocyte Indices
;
Hematologic Tests
;
Leukocytes
;
Malathion
;
Occupations*
;
Pakistan
;
Pesticides*
;
Tail
10.Seroprevalence and Spatial Distribution of Toxoplasmosis in Sheep and Goats in North-Eastern Region of Pakistan.
Haroon AHMED ; Ayesha MALIK ; Irfan MUSTAFA ; Muhammad ARSHAD ; Mobushir Riaz KHAN ; Sohail AFZAL ; Shahzad ALI ; M Mobeen HASHMI ; Sami SIMSEK
The Korean Journal of Parasitology 2016;54(4):439-446
Toxoplasmosis is a protozoan disease that is caused by Toxoplasma gondii in livestock and humans. Due to its medical and veterinary importance, it is essential to study the seroprevalence of T. gondii infection among humans and animals in various parts of the world. The major objective of this study was to determine the seroprevalence and spatial distribution of toxoplasmosis in small ruminants (sheep and goats) of north-eastern region, Pakistan. A total of 1,000 animals comprising of sheep (n=470) and goats (n=530) were examined for T. gondii infection by using ELISA. An epidemiological data was collected in the form of questionnaire. A surface has been generated by using method of interpolation in Arc GIS with the help of IDW (inverse distance weight). The results showed higher seroprevalence of T. gondii in goats (42.8%) as compared to sheep (26.2%). The seroprevalence was higher in females as compared to males in all examined ruminants. Similarly, there is a wide variation in the seroprevalence of T. gondii in different breeds of sheep and goats showing higher seroprevalence in Teddy (52.8%) and Damani breed (34.5%) of goat and sheep's, respectively. The geographical and spatial distribution of T. gondii shows that it is widely distributed in different parts of the north-eastern region of Pakistan. Our results suggest widespread environmental contamination with T. gondii oocysts. It suggests us that small ruminants could be a potentially important source of T. gondii infection if their infected meat is consumed undercooked.
Animals
;
Enzyme-Linked Immunosorbent Assay
;
Female
;
Goats*
;
Humans
;
Livestock
;
Male
;
Meat
;
Methods
;
Oocysts
;
Pakistan*
;
Ruminants
;
Seroepidemiologic Studies*
;
Sheep*
;
Toxoplasma
;
Toxoplasmosis*


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