1.Tea tree oil, a vibrant source of neuroprotection via neuroinflammation inhibition: a critical insight into repurposing Melaleuca alternifolia by unfolding its characteristics.
Md Atiar RAHMAN ; Abida SULTANA ; Mohammad Forhad KHAN ; Rachasak BOONHOK ; Sharmin AFROZ
Journal of Zhejiang University. Science. B 2023;24(7):554-573
Over the past few decades, complementary and alternative treatments have become increasingly popular worldwide. The purported therapeutic characteristics of natural products have come under increased scrutiny both in vitro and in vivo as part of efforts to legitimize their usage. One such product is tea tree oil (TTO), a volatile essential oil primarily obtained from the native Australian plant, Melaleuca alternifolia, which has diverse traditional and industrial applications such as topical preparations for the treatment of skin infections. Its anti-inflammatory-linked immunomodulatory actions have also been reported. This systematic review focuses on the anti-inflammatory effects of TTO and its main components that have shown strong immunomodulatory potential. An extensive literature search was performed electronically for data curation on worldwide accepted scientific databases, such as Web of Science, Google Scholar, PubMed, ScienceDirect, Scopus, and esteemed publishers such as Elsevier, Springer, Frontiers, and Taylor & Francis. Considering that the majority of pharmacological studies were conducted on crude oils only, the extracted data were critically analyzed to gain further insight into the prospects of TTO being used as a neuroprotective agent by drug formulation or dietary supplement. In addition, the active constituents contributing to the activity of TTO have not been well justified, and the core mechanisms need to be unveiled especially for anti-inflammatory and immunomodulatory effects leading to neuroprotection. Therefore, this review attempts to correlate the anti-inflammatory and immunomodulatory activity of TTO with its neuroprotective mechanisms.
Tea Tree Oil/therapeutic use*
;
Melaleuca
;
Neuroprotection
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Drug Repositioning
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Neuroinflammatory Diseases
;
Australia
;
Oils, Volatile
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Anti-Inflammatory Agents/pharmacology*
2.Clinical value of activin A in early identification of moderate and severe acute pancreatitis: a prospective study
Xianrong LIU ; Nengqian MA ; Jianwu LONG ; Khan AFRASIYAB ; Xianzhou LU
Chinese Critical Care Medicine 2022;34(7):732-735
Objective:To explore the value of serum activin A (ACT-A) level in early identification of moderate and severe acute pancreatitis (AP).Methods:A prospective case control study was conducted. A total of 120 patients with AP admitted to department of hepatobiliary surgery of Affiliated Nanhua Hospital of Hengyang Medical College of University of South China between October 2020 and April 2022 were recruited. According to the revised Atlanta classification, all patients were classified into mild AP group and moderate-to-severe AP group. The blood samples within 24 hours of onset were drawn, and the serum ACT-A and C-reactive protein (CRP) levels were detected by enzyme-linked immunosorbent assay (ELISA). The Ranson score and the modified CT severity index (MCTSI) were performed. Pearson correlation method was used to analyze the correlation of various parameters. The receiver operator characteristic curve (ROC curve) was plotted to analyze the predictive value of ACT-A and CRP for moderate-to-severe AP.Results:A total of 120 patients with AP were enrolled, including 83 patients with mild AP and 37 patients with moderate-to-severe AP. Serum ACT-A and CRP levels within 24 hours of onset in the moderate-to-severe AP group were significantly higher than those in the mild AP group [ACT-A (ng/L): 140.4±37.7 vs. 53.9±30.5, lg CRP: 1.42±0.91 vs. 0.77±0.70, both P < 0.01], and the Ranson score and MCTSI score were also significantly higher than those in the mild AP group (Ranson score: 5.3±1.3 vs. 1.8±1.6, MCTSI score: 5.5±1.0 vs. 2.7±1.2, both P < 0.01). Correlation analysis showed that the serum ACT-A level was positively correlated with serum CRP level, Ranson score and MCTSI score ( R2 value was 0.272, 0.841, 0.616, respectively, all P < 0.05). ROC curve analysis showed that the serum ACT-A, CRP and Ranson score had predictive value for moderate-to-severe AP. The area under the ROC curve (AUC) was 0.948 [95% confidence interval (95% CI) was 0.909-0.986], 0.711 (95% CI was 0.606-0.815), 0.946 (95% CI was 0.910-0.982), respectively. When serum ACT-A > 112.6 ng/L, the sensitivity and specificity of predicting moderate-to-severe AP were 78.38% and 96.39%, respectively, which was better than serum CRP with sensitivity and specificity of 72.92% and 66.27%, respectively, and the specificity was better than Ranson score (71.08%). Conclusion:ACT-A can be detected in the early stage of AP, and it is positively correlated with the disease severity, which can early identify moderate-to-severe AP.
3.A recurrent homozygous missense mutation in CCDC103 causes asthenoteratozoospermia due to disorganized dynein arms.
Muhammad ZUBAIR ; Ranjha KHAN ; Ao MA ; Uzma HAMEED ; Mazhar KHAN ; Tanveer ABBAS ; Riaz AHMAD ; Jian-Teng ZHOU ; Wasim SHAH ; Ansar HUSSAIN ; Nisar AHMED ; Ihsan KHAN ; Khalid KHAN ; Yuan-Wei ZHANG ; Huan ZHANG ; Li-Min WU ; Qing-Hua SHI
Asian Journal of Andrology 2022;24(3):255-259
Asthenoteratozoospermia is one of the most severe types of qualitative sperm defects. Most cases are due to mutations in genes encoding the components of sperm flagella, which have an ultrastructure similar to that of motile cilia. Coiled-coil domain containing 103 (CCDC103) is an outer dynein arm assembly factor, and pathogenic variants of CCDC103 cause primary ciliary dyskinesia (PCD). However, whether CCDC103 pathogenic variants cause severe asthenoteratozoospermia has yet to be determined. Whole-exome sequencing (WES) was performed for two individuals with nonsyndromic asthenoteratozoospermia in a consanguineous family. A homozygous CCDC103 variant segregating recessively with an infertility phenotype was identified (ENST00000035776.2, c.461A>C, p.His154Pro). CCDC103 p.His154Pro was previously reported as a high prevalence mutation causing PCD, though the reproductive phenotype of these PCD individuals is unknown. Transmission electron microscopy (TEM) of affected individuals' spermatozoa showed that the mid-piece was severely damaged with disorganized dynein arms, similar to the abnormal ultrastructure of respiratory ciliary of PCD individuals with the same mutation. Thus, our findings expand the phenotype spectrum of CCDC103 p.His154Pro as a novel pathogenic gene for nonsyndromic asthenospermia.
Asthenozoospermia/pathology*
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Dyneins/genetics*
;
Homozygote
;
Humans
;
Male
;
Microtubule-Associated Proteins
;
Mutation
;
Mutation, Missense
;
Sperm Tail/metabolism*
4.Analysis of the Genome Sequence of Strain GiC-126 of Gloeostereum incarnatum with Genetic Linkage Map
Wan-Zhu JIANG ; Fang-Jie YAO ; Ming FANG ; Li-Xin LU ; You-Min ZHANG ; Peng WANG ; Jing-Jing MENG ; Jia LU ; Xiao-Xu MA ; Qi HE ; Kai-Sheng SHAO ; Asif Ali KHAN ; Yun-Hui WEI
Mycobiology 2021;49(4):406-420
Gloeostereum incarnatum has edible and medicinal value and was first cultivated and domesticated in China. We sequenced the G. incarnatum monokaryotic strain GiC-126 on an Illumina HiSeq X Ten system and obtained a 34.52-Mb genome assembly sequence that encoded 16,895 predicted genes. We combined the GiC-126 genome with the published genome of G. incarnatum strain CCMJ2665 to construct a genetic linkage map (GiC-126 genome) that had 10 linkage groups (LGs), and the 15 assembly sequences of CCMJ2665 were integrated into 8 LGs. We identified 1912 simple sequence repeat (SSR) loci and detected 700 genes containing 768 SSRs in the genome; 65 and 100 of them were annotated with gene ontology (GO) terms and KEGG pathways, respectively. Carbohydrate-active enzymes (CAZymes) were identified in 20 fungal genomes and annotated; among them, 144 CAZymes were annotated in the GiC-126 genome. The A mating-type locus (MAT-A) of G. incarnatum was located on scaffold885 at 38.9 cM of LG1 and was flanked by two homeodomain (HD1) genes, mip and beta-fg. Fourteen segregation distortion markers were detected in the genetic linkage map, all of which were skewed toward the parent GiC-126. They formed three segregation distortion regions (SDR1–SDR3), and 22 predictive genes were found in scaffold1920 where three segregation distortion markers were located in SDR1. In this study, we corrected and updated the genomic information of G. incarnatum. Our results will provide a theoretical basis for fine gene mapping, functional gene cloning, and genetic breeding the follow-up of G. incarnatum.
5.Analysis of the Genome Sequence of Strain GiC-126 of Gloeostereum incarnatum with Genetic Linkage Map
Wan-Zhu JIANG ; Fang-Jie YAO ; Ming FANG ; Li-Xin LU ; You-Min ZHANG ; Peng WANG ; Jing-Jing MENG ; Jia LU ; Xiao-Xu MA ; Qi HE ; Kai-Sheng SHAO ; Asif Ali KHAN ; Yun-Hui WEI
Mycobiology 2021;49(4):406-420
Gloeostereum incarnatum has edible and medicinal value and was first cultivated and domesticated in China. We sequenced the G. incarnatum monokaryotic strain GiC-126 on an Illumina HiSeq X Ten system and obtained a 34.52-Mb genome assembly sequence that encoded 16,895 predicted genes. We combined the GiC-126 genome with the published genome of G. incarnatum strain CCMJ2665 to construct a genetic linkage map (GiC-126 genome) that had 10 linkage groups (LGs), and the 15 assembly sequences of CCMJ2665 were integrated into 8 LGs. We identified 1912 simple sequence repeat (SSR) loci and detected 700 genes containing 768 SSRs in the genome; 65 and 100 of them were annotated with gene ontology (GO) terms and KEGG pathways, respectively. Carbohydrate-active enzymes (CAZymes) were identified in 20 fungal genomes and annotated; among them, 144 CAZymes were annotated in the GiC-126 genome. The A mating-type locus (MAT-A) of G. incarnatum was located on scaffold885 at 38.9 cM of LG1 and was flanked by two homeodomain (HD1) genes, mip and beta-fg. Fourteen segregation distortion markers were detected in the genetic linkage map, all of which were skewed toward the parent GiC-126. They formed three segregation distortion regions (SDR1–SDR3), and 22 predictive genes were found in scaffold1920 where three segregation distortion markers were located in SDR1. In this study, we corrected and updated the genomic information of G. incarnatum. Our results will provide a theoretical basis for fine gene mapping, functional gene cloning, and genetic breeding the follow-up of G. incarnatum.
6.Identification and characterization of murine adipose tissue-derived somatic stem cells of Shenque (CV8) acupoint.
Yu-Hui HAO ; Zhi-Zhen LIU ; Hong ZHAO ; Lei WANG ; Ajab KHAN ; Jian-Bin MU ; Yu-Fei WANG ; Li-Hong YANG ; Ran ZHOU ; Jun XIE
Chinese Medical Journal 2021;134(22):2730-2737
BACKGROUND:
Shenque (CV8) acupoint is located on the navel and has been therapeutically used for more than 2000 years in Traditional Chinese Medicine (TCM). However, clinical research on the underlying therapeutic molecular mechanisms of the CV8 acupoint lags far behind. This study aimed to study the mechanisms of umbilical acupoint therapy by using stem cells.
METHODS:
The morphological characteristics of CV8 acupoint were detected under a stereomicroscope using hematoxylin and eosin (H&E) staining. Oil Red, Masson, and immunohistochemical staining on multi-layered slices were used to identify the type of cells at the CV8 acupoint. Cell proliferation was measured by a cell counting kit-8 (CCK-8) method. Flow cytometry and immunohistochemistry were used for cell identification. Induced differentiation was used to compare the differentiation of cells derived from CV8 acupoint and non-acupoint somatic stem cells into other cell types, such as osteogenic, adipogenic, and neural stem cell-like cells.
RESULTS:
Morphological observations showed that adipose tissues at the linea alba of the CV8 acupoint in mice had a mass-like distribution. Immunohistochemical staining confirmed the distribution of stem cell antigen-1 (Sca-1) positive cells in the multi-layered slices of CV8 acupoint tissues. Cells isolated from adipose tissues at the CV8 acupoint exhibited high expression of Sca-1 and CD44 and low expression of CD31 and CD34, and these cells possessed osteogenic, adipogenic, and neurogenic stem cell-like cell differentiation ability. The cell proliferation (day 4: 0.5138 ± 0.0111 vs. 0.4107 ± 0.0180, t = 8.447, P = 0.0011; day 5: 0.6890 ± 0.0070 vs. 0.5520 ± 0.0118, t = 17.310, P < 0.0001; day 6: 0.7320 ± 0.0090 vs. 0.6157 ± 0.0123, t = 13.190, P = 0.0002; and day 7: 0.7550 ± 0.0050 vs. 0.6313 ± 0.0051, t = 42.560, P < 0.0001), adipogenic ([9.224 ± 0.345]% vs. [3.933 ± 1.800]%, t = 5.000, P = 0.0075), and neurogenic stem cell-like cell differentiation (diameter < 50 μm: 7.2000 ± 1.3040 vs. 2.6000 ± 0.5477, t = 7.273, P < 0.0001; diameter 50-100 μm: 2.6000 ± 0.5477 vs. 1.0000 ± 0.7071, t = 4.000, P = 0.0039; and diameter >100 μm: 2.6000 ± 0.5477 vs. 0.8000 ± 0.8367, t = 4.025, P = 0.0038) were significantly enhanced in somatic stem cells derived from the CV8 acupoint compared to somatic stem cells from the groin non-acupoint. However, cells possessed significantly weaker osteogenicity ([2.697 ± 0.627]% vs. [7.254 ± 0.958]%, t = 6.893, P = 0.0023) in the CV8 acupoint group.
CONCLUSIONS
Our study showed that CV8 acupoint was rich with adipose tissues that contained abundant somatic stem cells. The biological examination of somatic stem cells derived from the CV8 acupoint provided novel insights for future research on the mechanisms of umbilical therapy.
Acupuncture Points
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Adipose Tissue
;
Adult Stem Cells
;
Animals
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Cell Differentiation
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Cells, Cultured
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Mice
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Osteogenesis
8.Platinum complexes of curcumin delivered by dual-responsive polymeric nanoparticles improve chemotherapeutic efficacy based on the enhanced anti-metastasis activity and reduce side effects.
Yan CHEN ; Chen CHEN ; Xiaojuan ZHANG ; Chuanchuan HE ; Pengxuan ZHAO ; Minsi LI ; Ting FAN ; Ruicong YAN ; Yao LU ; Robert J LEE ; Muhammad Waseem KHAN ; Muhammad SARFRAZ ; Xiang MA ; Tan YANG ; Guangya XIANG
Acta Pharmaceutica Sinica B 2020;10(6):1106-1121
Platinum-based chemotherapy is used for non-small cell lung cancer (NSCLC). However, it has side effects and minimum efficacy against lung cancer metastasis. In this study, platinum-curcumin complexes were loaded into pH and redox dual-responsive nanoparticles (denoted as Pt-CUR@PSPPN) to facilitate intracellular release and synergistic anti-cancer effects. Pt-CUR@PSPPN was prepared by a nano-precipitation method and had a diameter of ∼100 nm. The nanoparticles showed increased anti-cancer effects both and . In addition, Pt-CUR@PSPPN blocked PI3K/AKT signal transduction pathway and inhibited MMP2 and VEGFR2, resulting in enhanced anti-metastatic activity. Furthermore, reduced side effects were also observed. In conclusion, Pt-CUR@PSPPN provided a novel and attractive therapeutic strategy for NSCLC.
9.Potential Toxicological and Cardiopulmonary Effects of PM2.5 Exposure and Related Mortality: Findings of Recent Studies Published during 2003-2013.
Mohammed O A MOHAMMED ; Wei Wei SONG ; Wan Li MA ; Wen Long LI ; Yi Fan LI ; Afed Ullah KHAN ; Mohammed A E M IBRAHIM ; Osman Adam MAAROUF ; Alshebli A AHMED ; John J AMBUCHI
Biomedical and Environmental Sciences 2016;29(1):66-79
10.Trends in Body Mass Index and its Determinants among Ever-married Non-pregnant Women in Bangladesh
Khan MN ; Mondal MNI ; Islam MR ; Al-Mamun MA ; Shitan M
Malaysian Journal of Nutrition 2015;21(2):191-205
Introduction: There is increasing prevalence of overweight ever-married non¬pregnant women while underweight women of the same category remain common. Thus, this study aimed to identify body mass index (BMI) trends as well as the determinants of nutritional status across urban and rural areas and Bangladesh as a whole over the survey years of Bangladesh Demographic and Health Survey (BDHS) 2007 and 2011.
Method: The nationally representative samples of 9,241 and 14,975 ever-married non-pregnant women 15 to 49 years old were extracted from the BDHS 2007 and 2011, respectively. BMI was used as a proxy to measure nutritional status. Binary logistic regression models were fitted separately for urban and rural areas and Bangladesh as a whole to identify the changes in determinants.
Results: The prevalence of underweight women decreased 5.3% while the prevalence for overweight women increased 3.1% between the survey years of BDHS 2007 and 2011. Women in rural areas were found more likely to be underweight while the percentage of women with normal nutritional status was found to increase in the urban areas. Respondents' age, education, marital status, children ever born, wealth index, age at first birth, husbands' occupation and husbands' education were identified as the most important determinants of nutritional status in both the survey years.
Conclusion: The burden of underweight, and overweight to obese women in Bangladesh is strongly related to an individual's demographic and socio-economic position. These findings underscore the need for public health efforts aimed at combating underweight among women.

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