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1.
Front Artif Intell ; 5: 976838, 2022.
Article in English | MEDLINE | ID: mdl-36304961

ABSTRACT

Automated systems that implement Machine learning (ML) and Artificial Intelligence (AI) algorithms present promising solutions to a variety of technological and non-technological issues. Although, industry leaders are rapidly adopting these systems for anything from marketing to national defense operations, these systems are not without flaws. Recently, many of these systems are found to inherit and propagate gender and racial biases that disadvantages the minority population. In this paper, we analyze academic publications in the area of gender biases in ML and AI algorithms thus outlining different themes, mitigation and detection methods explored through research in this topic. Through a detailed analysis of N = 120 papers, we map the current research landscape on gender specific biases present in ML and AI assisted automated systems. We further point out the aspects of ML/AI gender biases research that are less explored and require more attention. Mainly we focus on the lack of user studies and inclusivity in this field of study. We also shed some light into the gender bias issue as experienced by the algorithm designers. In conclusion, in this paper we provide a holistic view of the breadth of studies conducted in the field of exploring, detecting and mitigating gender biases in ML and AI systems and, a future direction for the studies to take in order to provide a fair and accessible ML and AI systems to all users.

2.
J Exp Ther Oncol ; 7(2): 123-33, 2008.
Article in English | MEDLINE | ID: mdl-18771086

ABSTRACT

Reactive oxygen species (O2(*-), OH(-), H2O2) are known to play an important role in tumor initiation in hepatocarcinoma. Hepatocarcinoma was developed in the Swiss Albino rats by administration three doses of diethylnitrosamine (DEN) (200 mg/kg b. wt.) (i.p.) at 15 days interval. Quercetin (QC), herbal polyphenolic compound, is a potent anticancer drug. Clinical trials are difficult for its hydrophobic nature. To overcome this problem, our study was aimed to formulate soluble liver specific, galactosylated liposomal QC and to investigate its efficacy against hepatocarcinoma in rat model. Galactosylated liposomal QC was formulated and the suspension was introduced intravenously to rats (8.98 microM/kg) once in a week for 16 weeks. Hepatocarcinoma in rat model and its pathological improvement were evaluated histopathologically, histochemically and electron microscopically. Severe oxidative damage was noticed in the whole liver and its microsomal fraction of DEN treated rats. Huge numbers of hyperplastic nodules (HNs) with pre-neoplastic lesions appeared in rat liver by DEN administration. Galactosylated liposomal QC injections prevented DEN mediated development of hepatocarcinoma and oxidative damage in rat liver. Quercetin in liver specific galactosylated liposomal drug delivery system may be recommended as a potent therapeutic formulation against DEN-induced hepatocarcinoma.


Subject(s)
Alkylating Agents/antagonists & inhibitors , Alkylating Agents/toxicity , Anticarcinogenic Agents , Antioxidants/pharmacology , Carcinogens/antagonists & inhibitors , Carcinogens/toxicity , Diethylnitrosamine/antagonists & inhibitors , Diethylnitrosamine/toxicity , Liver Neoplasms/prevention & control , Quercetin/pharmacology , Animals , Antioxidants/administration & dosage , Antioxidants/metabolism , Catalase/metabolism , Drug Carriers , Drug Compounding , Galactose/chemistry , Glutathione Peroxidase/metabolism , Intercalating Agents/chemistry , Intercalating Agents/pharmacology , Lipid Peroxidation/drug effects , Liposomes , Liver Neoplasms/chemically induced , Liver Neoplasms, Experimental/chemically induced , Liver Neoplasms, Experimental/pathology , Male , Microscopy, Electron , Microsomes, Liver/drug effects , Microsomes, Liver/pathology , Organ Size/drug effects , Quercetin/administration & dosage , Rats
3.
Curr Aging Sci ; 1(3): 169-74, 2008 Dec.
Article in English | MEDLINE | ID: mdl-20021389

ABSTRACT

Reactive oxygen species e.g. O(2)(*-), H(2)O(2) and *OH generated by the induction of oxidative stress exert a potential threat on the activity of endogenous antioxidant enzymes and substantially influence the aging process and age-dependant neuropathology. Chemical antioxidant is almost ineffective in protecting neuronal cells from oxidative damage as Blood Brain Barrier exists in between blood and brain interstitial fluid that restricts undegradable influx from the circulation into cerebral region. Quercetin (QC), a flavonoidal antioxidant is known as a potent antioxidant for its polyphenolic configuration. Formulation of QC in polylactide nanocapsule has been done and the efficacy of this vesicular flavonoid has been tested against cerebral ischemia induced oxidative damage in young and old rat brains. Antioxidant potential of QC loaded in nanocapsule (QC 7.2 mmol/kg b.wt., size 50 nm) was investigated by an in vivo model of cerebral ischemia and reperfusion on Sprague Dawley young (2 months, b.wt. 160-180 g) and aged (20 months, b.wt. 415-440 g) rats. Diene level, the index of lipid peroxidation and GSSG/GSH ratio were found to be higher in normal aged, compared to normal young rat brain. Endogenous antioxidants activities were lower in aged rat brain compared to young. Further reduction of these antioxidants were observed in aged rat brain by the induction of cerebral ischemia - reperfusion. Nanocapsule encapsulated QC treatment resulted a significant protection to endogenous antioxidant enzymes against ischemia induced oxidative damage in neuronal cells of young and old rats.


Subject(s)
Aging/metabolism , Antioxidants/administration & dosage , Brain/drug effects , Brain/metabolism , Oxidative Stress/drug effects , Quercetin/administration & dosage , Animals , Blood-Brain Barrier , Brain Ischemia/drug therapy , Brain Ischemia/metabolism , Catalase/metabolism , Glutathione/metabolism , Glutathione Disulfide/metabolism , Lipid Peroxidation/drug effects , Male , Nanocapsules/chemistry , Polyesters , Rats , Rats, Sprague-Dawley , Reperfusion Injury/drug therapy , Reperfusion Injury/metabolism , Superoxide Dismutase/metabolism
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